Connecting to someone else's smartphone. Experiment

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The remote control function is provided for personal computers and mobile devices - tablets and smartphones. Gadgets store a lot of personal information: user information, bank card and account data. Remote control of Android from a computer increases the security of using information and helps you interact with the device, even if it is not within range.

What is remote access to Android

In order to control your smartphone, wires are no longer required: Android Device can be connected to a PC using special applications. It becomes possible to manage data from the device - contacts, images, videos, personal information. The connection does not affect the operation of the tablet or phone; the connection time takes a couple of seconds.

What is it needed for

Remote control of an Android tablet is not just another “smart” option, it allows the user to:

If there is a problem with the loss or theft of a device, set up remote blocking of information, take a photo of the thief with the front camera;
copy images, any files from your phone to your computer or, conversely, without USB connections wires;
determine the location of the child’s phone, use the camera as a tracking tool.

Benefits and features

Android remote control is the blocking of personal data when a smartphone or tablet is lost or stolen: contacts, photos, bank card information, social network accounts. Controlling Android via a computer helps to implement parental control over children’s phones, launch location detection, and monitor via video camera.

How to enable remote control for Android

The computer is controlled remotely through several applications with different functionality. Connection may vary: through a Google account or QR code, registration on the manufacturer’s website, providing data about the device. In order to remotely control a smartphone and gain access to its information, you need to install the application and execute a number of commands in the settings menu that synchronize the operation of the gadget and the PC.

Google remote access

Before you start remotely controlling Android, you need to check the Android OS version on your gadget: is it possible to support this option? If there is no such function in the settings, you need to use the system update function to the latest version. After that, find the item “Remote control” (Settings, Security, Device Administrators), check the box.

Remote access to an Android phone will only work when the device is connected to the Internet (Wi-Fi or mobile network). On your computer, you need to go to the website to confirm your Google account password. You will have access to the following functions:

determining the location of the device;
a call that will work even if the gadget is turned off;
turn off the phone, block and delete data if stolen or lost.

Third party programs and software

Google released own application For remote control gadgets based on Android, but there are several other effective programs released by third-party companies:

TeamViewer QuickSupport – free program, which makes it possible to control a tablet and smartphone from a PC and vice versa;
AirDroid is a free application with the function of broadcasting the smartphone screen to a PC monitor, there is data management, but there is no direct launch of applications;
MobileGo – can work with data, applications, fast copying data on PC;
Airmore – connects via QR code, view data, photos, manage contacts, write SMS

From an Android device

Eat Android applications, which provide feedback, make it possible to work on a PC with mobile device based on Android:

Splashtop2 Remote Desktop– works when creating an account in the service, controlling the desktop of a Windows PC through a system of touching the screen;
TeamViewer is a multifunctional application that gives access to a PC, working with its data and memory card, locking, connecting not only to your own, but also to third-party PCs;
PocketCloud Remote Desktop – easy navigation, several connection modes, free paid version Only one PC is connected.

Connection via built-in services

The Android application system provides built-in services to control Android from a computer. Google services are effective means for remote work with mobile devices. Determining the location of the gadget, calling (even to a switched off phone), blocking data if stolen or lost, full reboot Android systems, turning off the phone if necessary.

To connect you need:

Go to the “Applications” section, then “Google Settings”.
Select "Security".
Check the box next to the “Remote device search” sub-item.
Enable geolocation (in the settings, go to the “Personal” section, enable location detection).
On your computer, go to the Google website.
Enter your Google account password.

Control your Android phone from your computer

Several applications have been developed that are designed to gain access to mobile devices from a personal computer. The principle of operation and installation are similar, but differ in connection type and functionality. Some programs are free for private use, while others only offer certain options in the paid version.

Google account

A prerequisite for connecting to a PC using the remote Google service is to have an account, because in the process you will need to enter your username and password on the computer. The connection is made through the phone settings and takes less than a minute:

setting up remote access capabilities;
account confirmation;
work with phone and PC.

The built-in application finds the phone on the map, this works even when another SIM card is inserted into the device. Shows the time and location of the phone's last activity. A useful feature is a forced call, even if the smartphone is turned off. Data locking, full reset settings helps if your phone is lost or stolen. The advantages include accessibility and ease of connection. Disadvantage – truncated functionality, impossibility of remote control Android data.

A popular free application that provides remote control of Android using a remote connection to a computer. There are two ways to install the AirDroid service - through a Google account, an account on the Airdroid website or a QR code, but then the PC and the gadget must be connected to the same Wi-Fi network. To use advanced features, additional configuration is required (providing root rights).

The advantages include simple, quick setup, convenient functionality, the presence of many functions in free version. Cons – the full option requires installing an application with additional settings. Some features are available for money. Features of the Airdroid application (free):

control panel, working with data, music, photos;
list of messages;
searching for a phone using a sound notification;
switching the phone to silent mode;
use of front and regular cameras (paid);
transfer of files larger than 50MB (paid).

The Airmore application is designed to provide remote control of an Android device from a computer. Remote connection does not require account information, the connection is made through a QR code. Pros of the application - the program is free, there is no limit on the size of copied files, easy installation. The disadvantages include the lack of a Russian-language version.

The installation process is simple: install via browser on your computer, then press the camera button when scanning graphic code from the monitor window. Next, download the application from Google Play and install it on your phone. Application functionality:

full access to file manager, contacts and SMS;
simultaneous notifications on PC and mobile phone;
camera control; screen lock;
determining the location of the phone;
Creation backup copies, transfer files of any size.

Functional program to synchronize mobile devices to Android platform with a computer. It is convenient to use when connected to a PC using a cable or connected via Wi-Fi networks (you will need to scan a QR code). You need to download the application on both devices and launch the program. Some features may require root access. The MobileGo service provides:

work with contacts, calls;
copying files to PC;
viewing and converting video files on the monitor;
working with phone RAM;
working with installed applications and device manager.

Popular remote control application Android devices from a personal computer, free for personal use. It is installed on the PC and device, then a login and password are created for the computer. Additionally, you must enter the smartphone identification number. The connection to control your Android device is secure. Works on all operating systems.

Possibilities TeamViewer programs QuickSupport:

working with files, there is an option to select a recipient folder;
working with applications;
broadcasting the smartphone screen to a monitor, transferring screenshots;
viewing system status information;
no limit on the size of transferred files.

Controlling a computer from Android

With the option of remote control of a PC from a smartphone, it becomes possible to work with files on the computer, manage programs and broadcast the desktop to the screen of a mobile device and any gadgets connected to it. As a rule, when connecting, you must first obtain registration on the application manufacturer’s website and enter the login and password received there.

Application with paid and free (use only one computer) version. The difference from other programs is the choice of connection method (via Google account, RDP protocol or VNC system). It is suitable for beginners and advanced users; it has rich functionality. Fully displays the desktop on the screen of a mobile device, adjustable using certain gestures and virtual keyboard.

To connect the program, you need to download the application from the official website of the developer on your PC and smartphone. Next comes registration and entering device data. The advantages include quick installation and configuration, convenient toolbar, advanced functionality. Of the minuses - in the free version one computer is connected, after purchasing a paid version up to five machines are connected, provided cloud storage for Splashtop information. The cost of the paid version is low - around 160 rubles.

New mobile version well-known program for remote access to a PC. Easy installation (on both media), secure connection, user-friendly interface. The free version offers desktop broadcasting, data management, keyboard and sound control. The paid version has broader software functionality - viewing video from a PC, managing printing and transferring files. To set up a connection, registration on the manufacturer’s website and mobile device data are required.

Video

Firstly, I’ll note as an educational opportunity that an IP camera allows you to connect remotely from another computer to a smartphone camera and even record everything on video. Surprisingly, similar cameras cost in markets from about $50 (more or less high quality model). But we always want to save money, and therefore we can even make a normal IP security camera from an old unnecessary Android smartphone. You just need to install special application and you will have a simple security camera in your hands. In the same way, you can make a baby monitor out of your phone.

So without further ado, let's move on to the instructions. You will need IP Webcam - a free application that can be downloaded from the Google Play store. To work you only need Wi-Fi internet.

The best choice

IP Webcam works better if you are connected not to the mobile Internet, but to a Wi-Fi network. All this is because the majority mobile operators set restrictions on some IPs, including the IP Webcam service. So make sure you connect to an available Wi-Fi Internet. After installing the application and connecting, all computers, smartphones and phones within the same network will have access to the video through a web browser.

IP Webcam setup:

If you are far from home...

Technically, the IP Webcam service must be accessible from another network - via the Internet. However, this requires more in-depth knowledge of the network configuration - that is, the average user can configure the connection on their own, but everything often depends on the Internet provider, as well as the router in your home. The good news here is that there is a very simple solution - use Chrome Remote Desktop (or another popular remote access application - TeamViewer). Using Google service, you can log in to your home computer and view webcam video through a web browser. In fact, this method is quite convenient and the video runs quite smoothly. The disadvantage of this method is the need for constant operation of the home computer.

Additional tips:

If you are going to often view video using IP Webcam through your smartphone camera, we recommend purchasing a wide-angle lens for it. This will give you a wide viewing angle in tight spaces.
If you know how to access the router settings, then it is better to find a way to assign a permanent IP address to your smartphone, which will work as a camera. This way you can look into your home at any time from anywhere.
can't connect? Apparently your firewall or router interfered with your plans. The problem can be anything, but it can often be cured by whitelisting the IP address of the smartphone with the IP Webcam.
You may want to add motion detection capabilities to your smartphone security camera so that it automatically starts recording. This option is also possible, just look at the IP Webcam settings.

Today we will talk about how to independently connect to the webcam of another computer via the Internet. We will also consider methods and programs for remotely connecting to webcams of PCs, laptops, tablets and phones

Advanced users also suggest the following option: install a terminal server on the computer with the camera (to spy on it unnoticed, i.e. if someone is working on the computer so that they don’t get kicked out), connect the Remote Desktop Protocol (RDP) and use any program that works with the camera. An indicative list of programs is available on web-kamera.ru. However, no one bears responsibility for the possible maliciousness of the programs. Therefore, be vigilant, check sites on the online service trustvset.rf and do not neglect antivirus software.

A way to secretly monitor the situation through someone else's webcam - with using Skype. Create a new account in the program, add this contact to your list on Skype. On the computer to which the camera is connected, log into Skype under this account, in the video settings, in the “Automatically receive video and share the screen for” field, select “only people from my contact list.”

To make it more convenient for you to watch videos from your tablet, phone, laptop or other computer, you can download the application. To do this, either add to your wishlist and install the Ivideon application, as shown in the screenshot, or exit the gadget to “google play” and find it through the search bar.

The Internet portal ru.ivideon.com optimally implements the ability to remotely connect from any device to web cameras, IP cameras and analog cameras. On the “Tariffs” tab, you can familiarize yourself with the characteristics of possible options for connecting to the service and select the appropriate one.

To register on the site, you only need your email address: enter it in the “Your email” field, create a password and click “Register”.

Video instructions for connecting to someone else's WEB camera:

YouTube Video

Click on the “Add camera or DVR” button, select the appropriate type of camera to connect, read the instructions in the next step and click “Continue”. Now you need to download and install the program on the computer to which the camera is connected; to do this, select your operating system. The standard installation will begin, just select your language and follow the installation wizard instructions
The setup wizard will start automatically. Click “Next”, then enter your e-mail that you specified during registration and select the camera location from the list. This formality is created for your convenience (if the list of cameras is large, these groups will be easier to navigate).

Make sure your camera is connected and working properly, click “Next”. If active cameras are detected, you will see a list of them, otherwise try to “reconnect” the working camera again and click “Repeat search”, if everything went well - “Next”. If you want the video to be saved in the archive, check the “Include in archive recording” checkbox; if you are only interested in online broadcasting of images from cameras, uncheck it. To prevent the program from starting automatically when you turn on the computer, uncheck “Start Ivideon Server when the OS starts,” and then click “Finish.”

If the “Log in to your Personal Account” checkbox remains active (by default), your page on the website ru.ivideon.com will automatically open in the browser. In the list on the right, select the active camera marked green color- and immediately see the live broadcast.

iSpy is an updated version of a specialized tool that is very lightweight and not difficult to use, its main purpose is to monitor premises, for these tasks either web cameras or regular microphone, or you can combine both the first and the second at once. The idea is simple, you connect the camera to your computer, launch the development, it instantly intercepts the image from it and displays it on the monitor, any movement in the camera’s field of action will be recorded on HDD, then you can view the records.

In addition, iSpy allows you to view live (real-time) or stored videos via the Internet or mobile devices. All data is compressed and saved in flash video format. It is possible to work on several computers simultaneously, as well as control the program remotely, protect it with a password, create groups or join existing groups (on the developer’s website) and give group members access to your web cameras and microphones

How to independently connect to a remote webcam via the Internet on other computers, video surveillance systems and smartphones. Methods and programs for remotely controlling webcams on a network and viewing through a remote someone else’s webcam. Sometimes users of personal computers of various classes may need to remotely connect to a webcam. The reason for this may be the desire to observe a certain point where the camera is installed and, accordingly, be aware of what is happening there.

You will need

Personal computer, webcam

Articles on the topic "How to connect to a remote webcam" How to set up a webcam How to turn on the webcam on a laptop How to take photos with a laptop camera

First of all, in order to connect to the webcam and view videos or photos, you need to create a local network connection. To do this you need to have a switch, i.e. special network switch, which allows you to create multiple connections at once, and at least two Ethernet cables. After this, connect all devices using Ethernet cables.

Now, using the installation program that is usually included in the initial package, determine the IP address for the camera. You will enter it into the address bar of your browser or other program. It is best to create a static IP address, as this is much more convenient for work. Then you need to open an Internet browser and type the IP address in the address bar. If you are using a modern browser, then no software will not load, since it necessarily supports video streams.

This is how a webcam is connected to a computer, but if you want to connect to a camera located at a very long distance, then for this you need special programs, for example, WebCam Monitor 4.20 or Webcam Surveyor 1.7.0, in which you also need to specify the IP address and some other data. The process of setting up programs of this kind is extremely simple, since you only have to answer questions. But, despite their simplicity, they offer many important advantages, since you will be able to detect illegal entry into your home or other troubles in time. As you can see, connecting remotely to a webcam is not so difficult, and thanks to this you can always be aware of what is happening in the observed area.

To observe events taking place in a certain place, you need to have a camera installed there, connected to the Internet and Personal Computer, from which you could control it. By connecting to it, you will see everything that happens in real time.

You will need

Network switch.

Create a local network connection to connect to the remote camera. To do this, you will need a special network switch. It is needed in order to create several connections at once. Take two Ethernet cables and connect all your devices.

Use the installation program. As a rule, it is included in the basic package. If not, then download it from the Internet and install it on your personal computer. Using this program, determine the IP address of the remote camera. Subsequently, you will enter it into the address bar of your browser or any other program convenient for you.

Create a static IP address so that later you can special problems turn on the camera remotely. Open your browser. Enter the IP address of the camera in the address bar. Use modern browsers that support video streaming to avoid the need for additional software. .

Use special programs if you want to connect to a camera located at a fairly large distance from you. To use remote camera install WebCam Monitor 4.20 or WebCam Survevor 1.7.0 on your personal computer. Using this program, specify the IP address of the camera you are interested in. What follows is a fairly simple setup procedure. You will only need to answer the questions that the program will ask.

The function of viewing a webcam via the Internet will help you always be aware of events both at home and at work. Remote online viewing will allow you not to worry about the baby, check the child’s perseverance while completing school assignments, and monitor the work activities of employees. Using a remote access program, you can always check whether your household is safe, their well-being, and the nuances of how your family spends time during rest or work. Of course, your employees should be notified about the possibility of monitoring.

Setting up a function in the remote access program

To be able to view webcams over the Internet, you need to connect the program to your account in the settings. Click the "Settings" button in the main program window, then select "View via Internet" and enter your NeoSpy account login and password. Connecting the program to an Internet account is similar to that described in the article “Viewing the screen via the Internet”. No additional configuration required.

Viewing pictures via the Internet

For remote viewing cameras via the Internet, you should go to the website https://ru.neospy.net and log in to your account.

After this, you should open the “Your computers” menu and click on the selected computer. In the "Image sources" field, select your webcam or the "default webcam" item. After that, click the "Connect" button.

Do not forget that when using a webcam as a source of images for a remote access program, it will become unavailable for other user programs (for example, Skype) for the duration of shooting.

If your computer is already turned off or you want to view your photo history for the day, click

“View history”, then after selecting the required date and time for generating the report, click on the “View actions” link.

As a result, a report viewing window will open, in which you can go to the “Webcams” tab and view images for the desired period.

Enabling local saving of photos

Sometimes you need to save pictures to your local computer instead of viewing them over the Internet.

Let's take a closer look at how you can enable saving pictures from webcams to your local computer, in addition to Internet viewing.

The first method is if you have access to a PC

Standard method activating the webcam settings through the NeoSpy program is described in detail in the article “Tracking via a webcam”.

The second way to set up is through an online account

To set up viewing webcams via the Internet, you need to log into your Internet account on the official website and go to the “Your computers” page

Then you should click on the right computer to see full information

To configure the function, click on the “Manage program settings” link. After this, the settings page will open (Fig. 3) on which you will be prompted to obtain program settings. Please note that in order for all changes to take effect and you to be able to open the program, you must have administrator rights.

After clicking on the “Get program settings” button, you should wait (from 10 to 30 seconds). During this time, the remote access program will download the settings. In this case, two mandatory nuances should be taken into account: the first - on the “Your Computers” web page, the required computer must have the data collection function activated (the function is enabled by default), the second - spyware NeoSpy must be running in hidden mode. As a result, the settings will be loaded as text commands

In our case, the required line of code responsible for the function of viewing webcams via the Internet: “...WebCam=1;...”. The line is located in the (Tracking Settings) section. In this case, the program saves pictures from the webcam, but if the value is “...WebCam=0;...”, the pictures are not saved. The designation and functionality of the remaining lines can be studied by clicking on the link and reading the article “Remote installation of a spy”. After any changes, be sure to save them by clicking on the “Apply Settings” button located at the bottom of the website. s.

If the installed program is not Russified, download the Russifier, or use a translator to correctly configure the software. After this, you will be able to use the remote webcam if given use will be legal and the administrator of the computer to which this camera is connected will grant you the appropriate rights.

The setup wizard will start automatically. Click “Next”, then enter your e-mail that you specified during registration and select the camera location from the list. This formality is created for your convenience (if the list of cameras is large, these groups will be easier to navigate). Make sure your camera is connected and working properly, click “Next”. If active cameras are detected, you will see a list of them, otherwise try to “reconnect” the working camera again and click “Repeat search”, if everything went well - “Next”. If you want the video to be saved in the archive, check the “Include in archive recording” checkbox; if you are only interested in online broadcasting of images from cameras, uncheck it. To prevent the program from starting automatically when you turn on the computer, uncheck “Start Ivideon Server when the OS starts,” and then click “Finish.”

The second way to monitor the situation is using Skype. Create a new account in the program, add this contact to your list on Skype. On the computer to which the camera is connected, log into Skype under this account, in the video settings, in the “Automatically receive video and share the screen for” field, select “only people from my contact list.” Power supply for IP video cameras can be organized as follows: using separately installed power supplies, and using video cameras that support the PoE standard.

Network equipment that supplies power to video cameras using the PoE standard is divided into classes based on the amount of power supplied (Table 3).

To increase the length of the interval from the IP video camera to the switch, PoE injectors are used.

PoE injectors are designed to power IP video cameras via a standard UTP Cat.5e or 6 cable at speeds of no more than 10/100 Mbit/s. Gigabit networks do not have the ability to use PoE power mode.

NETWORK HARDWARE

Network equipment - devices that make up the network that connects information flows from IP video cameras.

There are two types of network equipment:

■ Active network equipment - equipment that is capable of processing or converting information transmitted over the network. Such equipment includes network cards, switches, routers.

■ Passive network equipment - equipment used to transmit signals at the physical level. This network cables, connectors, repeaters and signal amplifiers. The main elements of active equipment used to build a network are switches and routers.

❖ SWITCH

One of the important characteristics of a switch is the number of ports. This determines how many network devices can be connected to it.

To determine what maximum speed a single switch port can provide, you need to find the “switch fabric bandwidth” parameter, say 32 Gbps, and divide it by the number of ports (16) multiplied by 2. For example: 32 / (2 x 16 ) = 1 Gbit/s.

Now in the menu on the left, activate the “Calls” item, click on the “Open” button additional settings", located in the window on the right. In the “Receive calls” field, select “only from my contacts” and check the remaining boxes so that the video broadcast will automatically start as soon as you call your additional account. Advanced users also suggest the following option: install a terminal server on the computer with the camera (to peep unnoticed, i.e. if someone is working on the computer, so as not to be “thrown out”), connect the Remote Desktop Protocol (RDP) and use any program that works with the camera. .

The simplest option for using “IP Webcam” from a computer is as follows: launch the browser and enter the IP address and port of the device in the address field. For example, on my home Wi-Fi network, the link looked like this: “http://192.168.4.6:8080/”, where 192.168.4.6 is the phone’s IP address, displayed on the display of the mobile device after starting the broadcast.

There are several possible ways to watch the broadcast. The simplest is to use a computer browser. While testing the application on my computer, it turned out that allowing the JAVA plugin to run was sufficient. Moreover, in the future you can allow this plugin to run without additional requests. If the plugin is missing, you can download it from the hyperlink displayed on the “Smartphone Camera Service” page. It also contains the settings necessary for watching video and listening to audio in any third-party application. The resulting network topology is presented in Figure 8. We see that with an estimated load created by video cameras on one port of 8.14 Mbit/s, the actual scheme allowed us to get exactly the same flow on one port - 8.14 Mbit/s.

In the considered example, ports for connecting servers, NAS drives and workstations of video surveillance post employees were not taken into account.

DEVELOPMENT OF PHYSICAL NETWORK TOPOLOGY

The physical topology of the network is strictly connected with the installation locations of video cameras and the routes for laying cable communications to the server room or monitor security post. In this regard, the physical topology of the network begins to be designed using a floor plan or a site plan, where the installation locations of video cameras are indicated.

The main problems that arise in the process of developing a physical topology are the following:

■ The length from the camera to the switch exceeds valid values distances of 80-100 meters.

■ PoE power is limited long distances or the network does not support PoE.

If the length from the camera to the switch is more than 80-100 meters, first of all, you need to try to group the cameras according to the principle of the minimum distance to the active equipment locations or move the active equipment to another place, closer to the video cameras.

If it is impossible to solve the problem in this way, you need to use special devices that allow you to increase the distance from the camera to the active equipment. Depending on the distance over which you want to increase the signal transmission, you can use fiber optic cable inserts and RF shielded cable inserts.

One of the viewing options is using a video player that supports video streaming, for example, the one recommended by the authors of the application free player VLC. Moreover, everything is quite automated - when you click on the “view in external player” hyperlink, an m3u file will be downloaded to your computer, which can simply be opened with the player.

To connect an IP camera to Skype or other applications that work with web cameras, you will need to install the appropriate drivers on your computer. This operation is described in sufficient detail on the “Connect to a Windows computer for use with video chats” page (the link to it is on the “Smartphone Camera Service” start page). I would like to note that everything actually works quite correctly, but for compatibility with Skype 5.x I had to install the “IP Camera Adapter”. Also, using the appropriate links in the web interface, you can take a full-size photo and upload the current video frame as a picture. Interesting feature“tinyCam Monitor” - viewing pictures from random public cameras. And it is convenient enough to evaluate the capabilities of the application. To configure the web cameras used, click the “Settings” button. cameras" of the main program dialog box and select the right camera. To change camera settings, press the button with a pencil icon located next to its name. Through "tinyCam Monitor" you can view both cameras from open access, and requiring authorization using a login and password.

In the settings for recording images from the camera (available in the paid version) to a memory card, ftp or cloud services You can set the frame rate and limit the maximum amount of space taken up (for an SD card). Another useful feature of the pro version is the ability to scan cameras available on the network. Recommendations for setting up “tinyCam Monitor” for using a software web camera created using “IP Webcam” are given on the start page of the web interface of the software camera. Consider an example of building an information network topology for 49 IP video cameras with a frame size of 1920x1080:

■ Set the frame rate and codecs used for each camera. Frame rate - 24 fps. Codec - H.264. We will assume that the selected parameters are the same for all cameras.

■ From Table 1 we find that for the given parameters the flow rate from one camera is 6.51 Mbit/s.

■ The total stream from 49 video cameras is 49 x 6.51 = 318.99 Mbit/s. Taking into account a 25% margin for unforeseen changes in traffic intensity in front of the video cameras, the total flow is 318.99 x 1.25 = 398.74 Mbit/s.

■ The switch port to which the video camera is connected must provide a flow rate of at least 398.74 Mbit/s / 49 = 8.14 Mbit/s.

■ We build the network on cable twisted pair UTP Cat.6 type with a maximum speed of 1000 Mbit/s. Taking into account 80% of the network load from the maximum value, the permissible flow is 1000 Mbit/s 0.8 = 800 Mbit/s. The total stream from all cameras (398.74 Mbps) does not exceed the maximum speed in the UTP Cat.6 cable (800 Mbps). Consequently, the video surveillance system will operate on one physical network without creating additional subnets.

What’s important is that the Ivideon service is free for personal use, and minimal configuration To work with it, you need a computer with Internet access, installed application“Ivideon Server” and a web camera connected to it. Moreover, the service developers offer branded IP cameras, where Ivideon support is integrated into the software. The free version of the service is limited to 1 video server “Ivideon Server” with two connected cameras or 1 IP camera. A static external IP address is not required to use the service.

Registration with Ivideon is quite simple - just enter your email address and enter the desired password to access your personal account. After registration, the required instance of “Ivideon Server” (or an IP camera that supports the service) is “linked” to your personal account. At this point, the setup is complete and you can proceed to viewing the recording, and even the archive is recorded on the Ivideon servers.

The scope of mobile Internet use is becoming wider. At the dawn of the era of mobile Internet access, its capabilities were limited to working with email and wap sites, and the ability to view regular HTML sites from a mobile device seemed like a real breakthrough. Over the past time, the Internet on mobile devices has become faster and more accessible, so now you won’t surprise anyone with Internet radio or an online cinema with a huge catalog of legal videos.

The popularization of the use of mobile devices to work with IP cameras or in their role is not at all surprising - with a fast Internet channel (we are still talking, most often, about Wi-Fi), organizing a video broadcast from a mobile device is quite simple. However, as well as making a smartphone or tablet part of a video surveillance system that allows you to view what is happening in your home, country house or office from anywhere in the world. And it's really convenient. And as 4G networks develop, the popularity of this use of smartphones will only grow.

It all started in one of the computer laboratories in Cambridge back in the early 90s of the last century, when the Global Wide Web was just beginning its victorious march across the planet. A group of scientists, about 15-20 people, worked on a project in the field of network technologies. The working conditions were spartan - there was only one coffee maker for the entire team, which could not meet the needs of the entire team. The main work was carried out in the laboratory; the staff lived in the same building, but in a different part of it. To spur their thinking process with a cup of invigorating drink, participants in the scientific project were forced to frequently visit the corridor located on the floor above, where the coffee maker was located. Often such trips failed, since some colleagues had already managed to empty the coveted container. The situation required a non-standard solution, and it was found.

One of the computers in the laboratory had a frame grabber. A camera was connected to it, which was aimed at the object of observation. The same computer played the role of an IP server using specially written software. Those who wanted to know whether there was coffee had to run client software on their computer that connected to the server. As a result, a black and white image was displayed on the remote computer in a small window, updated three times a minute. A note about this interesting complex was published in Comm-Week magazine on January 27, 1992. Not much time has passed since the appearance of the first prototypes of IP cameras, but they have already become a fully formed separate class devices that make daily life simpler, more convenient and more fun.

How does an IP camera work?

It consists primarily of a sensor.
Very often, instead of standard CCD matrices, cheaper CMOS sensors are used for video surveillance. Although they have lower sensitivity and not very good color rendition, their use can greatly reduce the cost of the device, since these sensors are “all in one chip” with digital data output.
Next: the network camera includes a microprocessor for video compression and motion detection (or simply a compressor chip). The most popular is JPEG, as it is the simplest and cheapest; MPEG4 is also used quite often, MPEG2 is the rarest and most expensive. With the expiration of the arithmetic encoding patent, WaveLet gains popularity. Finally, the network camera includes a 10/100 Mbps network controller.

Design and principle of operation of the IP camera:

A modern IP camera is digital device, producing video recording, digitization, compression and transmission computer network video images. Therefore, the IP camera includes the following components:
- CCD matrix
- lens
- optical filter
- video capture card
- video compression unit
- central processor and built-in IP server
- RAM
- flash memory
- network interface
- serial ports
- alarm inputs/outputs
As a photodetector, most IP cameras use a CCD matrix (CCD - charge-coupled device) - a rectangular light-sensitive semiconductor plate with an aspect ratio of 3: 4, which converts the light incident on it into an electrical signal. The CCD matrix consists of a large number of photosensitive cells. In order to increase the light sensitivity of a CCD matrix, a structure is often formed that creates a microlens in front of each of the cells. IN technical parameters IP cameras typically specify the CCD format (diagonal length of the sensor in inches), the number of effective pixels, the scan type (interlaced or interlaced), and sensitivity. A typical IP camera contains a lens, optical filter, CCD, circuitry digital processing images, an image compression scheme, and an IP server for connecting to the network. Each network video camera has its own IP address, computing functions, and built-in software, allowing it to function as an IP server, FTP server, FTP client and an email client. Most modern network cameras also include many other attractive features such as motion detection, alarm input/output and e-mail support.

Advantages of a network (IP) camera over a PC-based camera

With a built-in IP server, the network camera does not need direct connection to a computer or any other hardware or software. T

Network camera

PC based camera

Flexibility

By placing the camera anywhere, you can connect it to the network using a modem, cell phone, or wireless adapter.

The attached PC camera must be within 3 meters of the computer.

Functionality

All video is quickly transmitted over the network without any delays and additional equipment.

In addition to the camera, you always need a computer and software.

Installation

You set only the IP address and the camera is ready to work

Installing drivers and software on a PC is complicated.

Easy to use

You can manage and view images using a standard IP browser on any PC.

You will need certain software and you will not have the ability to administer remotely.

Stability

The camera works without any additional components, giving greater stability.

In addition to the camera, its stability also depends on the stability of the computer and software.

Quality

High quality when using MJPEG.

The components used are not of high quality, hence the low resolution.

Price

The cost of a network camera is just the cost of a network camera.

Solution cost = total cost cameras + computer + software.

How to connect an IP camera over a local network.

You will need the following components: a computer, a switch, a network camera and a local Ethernet network. There are also options wireless connection

Example of organizing video surveillance in the Office for front door

Step 1: Identify your needs

Do you only want to use the camera indoors? Or for outdoor use?

Do you want a fixed-angle camera or a variable-angle camera that allows you to pan, tilt or zoom remotely?

You will need additional options, such as motion detector, alarm notification, camera power via Ethernet, audio?

Do you want to simply observe or also record what is happening?

Do you need camera protection from external influence?

Determine how many cameras you will need for your needs.

Step 2: System requirements

If your building does not yet have a local network installed, which allows you to simply connect the network camera to the network output, then you will need the following equipment:

A switch that will serve as the central connection point between your network camera and your local computer

By at least two Ethernet cables: one to connect your network camera with a switch and the other to connect your local computer with a switch.

Step 3: Installation.

Connect all devices to each other via a switcher

Step 4: Assign an IP address to the network camera.

You must assign an IP address to your network camera so that you can access it through an IP browser on your local computer. You can choose between automatic and static IP address. A static IP address is recommended because you won't have to look up the camera's IP address every time.

To set the IP address of the network camera. You can use the software that is on the CD that comes with the product, or can be downloaded from the manufacturer's website or using the IP address protocol or ping utility. In any case, you will find all the information in the installation manual for the network camera.

Step 5: Finish the network camera installation.

Once the IP address has been assigned, you can open the IP browser on your local computer and enter the IP address of the network camera in the address field. For new visitors with an IP browser Internet Explorer, the browser will ask if you want to download a camera program. This program is a must watch operational video from a video server or video camera. It also provides control of MPEG-2, MPEG-4 formats, audio streams, motion detection and pan/tilt/zoom in the browser window. (Other IP browsers may have native support video streams and do not require installation of additional components.)

Click the "Yes" button to install the program

How to access an IP camera over the Internet

Example: After you have already received an image from an IP camera on your computer, you decide that it would be nice to be able to access the camera wherever there is Internet. For example, as a store owner, you want to control the activities in the store from your home, instead of having to be present every minute at the workplace

Step 1: System Requirements

Scenario A)

If your building (where the camera should be located) is already connected via Ethernet to an ISP (Internet Service Provider), simply set up an account, plug the network camera into the switch via the network output, and you should have a dynamically assigned public IP for the network camera -address. Follow the installation commands for the network camera. Special software or utility for the IP camera will be useful in identifying the IP address.

Since the assigned IP address may be changed by your ISP (due to the limited supply of IP addresses shared among its clients), see Step 4 below to find out how you can assign cameras to a specific IP address.

Scenario B)

If your building is not equipped with Ethernet access, then in most cases you may need following devices:

Broadband modem for asymmetrical digital subscriber line connection (usually supplied by your Internet service provider), or cable TV

Broadband Router, which may also be called an Internet Gateway, (A Broadband Router allows local network users to share a single Internet connection. It also serves as an interface between the Internet, the ISP and the Local Network.)

A switch that allows various devices from the network communicate directly with each other and allows devices from the local network to have separate IP addresses),

NOTE: Most broadband routers have a built-in SWITCHER function, so separate equipment not required

Network camera

Local computer

Computer for remote monitoring

Step 2: Assign an IP address to your camera p.

Since a broadband router typically assigns automatic, local IP addresses to devices on the local network, such IP addresses are subject to change. A static (permanent) IP address is recommended for the network camera. To assign a static IP address, find out the router's IP address range, which, for example, could be from 192.168.0.2 to 192.168.0.35. If you choose to use an out-of-range IP address, such as 192.168.0.100, as a static IP address for the camera, it is likely that you will not risk your device conflicting with other devices that receive automatic addresses.

Setting the IP address for your camera can be done in three ways: different ways, as stated in the camera manual. Once the IP address is assigned, set the subnet, and gateway (this information can be obtained from the router), and configure the camera settings: password, registered users to ensure access restrictions to the camera.

Step 3: Port Forwarding

The broadband router, as mentioned earlier, provides the interface between the Internet, the ISP and the Local Network. The router obtains an external IP address from the Internet service provider and supplies internal (local) IP addresses to devices on the local network.

To access a network camera that resides on a local network, you must identify the external IP address of your router (see your router's manual), and configure your router so that the external IP address is directed to the static, local IP address of the network camera . This process is called opening a port; that is, when you print the router's external IP address from any network computer The Internet locates your router, in turn forwarding your request to the local IP address that is assigned to the network camera.

Launch an IP browser and log into the router's built-in IP pages via Login to Router Configuration Pages.

Find the menu item "port forwarding" (or similar), with a table approximately as shown below:

Service name

Start port

End port

Server IP address

Not configured

HTTP (Network)

Since the camera sends its video over HTTP, you must configure the HTTP service like this:

Service name

Start port

End port

Server IP address

Not configured

HTTP (Network)

Unofficial port

192.168.0.10x

Save the configuration to the router and exit the configuration pages. The configuration is complete. Any requests reaching the router's external IP address on port 80 will now be sent to the camera's IP address: 192.168.0.100.

If you want to make more than one network camera accessible via the Internet, then you must use additional (unofficial) router ports, such as 80xx, and associate them with the network address of the IP camera.

Step 4: What can you do if your ISP frequently changes Dfi external IP address

Create an account in the DNS service that serves and registers domain names(for example www.nic.ru, etc.) and bind it to an external IP address. A domain name, such as www.IP-kamera.ru, is clear to the user, easy to remember, and you can assign each domain its own network device, i.e. its IP address. Whenever the router's IP address changes, it will be automatically registered by the DNS service to update your IP address so that you can access your network camera using the same address. With

Most broadband routers have native DNS support, such as www.dyndns.org.

Another alternative: You can buy or rent a static external IP address from your Internet service provider.

How to build a security system using IP cameras.

An effective way to expand security systems in a building, factory, hospital or university campus is to use existing infrastructure:

During the day, guards watch a monitor in the control room

At night and on weekends, monitoring can be performed remotely at a central monitoring station serving several companies

Built-in motion detector can trigger an alarm and start recording the alarm event

In the event of an alarm, the security manager can view the images on the computer closest to him or remotely via an Internet connection.

The images may be stored on a computer at the enterprise or on the server of the Internet service provider (ISP). Storing images in remote locations eliminates the risk of an attacker destroying evidence of crimes.

Cameras can also send images automatically to the host computer, or main computer itself can search for images from cameras. If your host computer is running Windows, you can use special software designed for network cameras. The program can display a picture in real time or work with archives. When the storage period for video images reaches, for example, two weeks, the program automatically erases them.

tinyCam Monitor

In addition to turning your smartphone into an IP camera, it can also be used to view images from existing cameras. In particular, the developers of the “IP Webcam” discussed above suggest using the “tinyCam Monitor” program, which exists in free and paid (about 125 rubles) versions. The functionality of this application includes:
Support for M-JPEG IP cameras/video servers and webcams of all well-known manufacturers, incl. Axis, FOSCAM, D-Link, Edimax, Panasonic, Pixord, TRENDnet, Mobotix, Vivotek, Beward. The full list is available on the official website;
Supports viewing up to 4 cameras simultaneously (16 maximum);
3 types of multi-screens;
Sequential mode;
The function of exchanging settings by email and importing/exporting them to a memory card or Dropbox;
Pan/Tilt/Zoom camera control;
Digital image enlargement;
Saving pictures to SD card.

Available in the paid pro version:
Additional multi-screens;
Loop video recording to SD/FTP/Dropbox;

Unlimited number of devices;
Sound (for devices from some manufacturers);
Search for cameras on the local network;
SSL support (https protocol);
Motion detection support (for some manufacturers);
Technical support for developers.

Greetings to all readers!
Smartphone thefts have become commonplace these days. But what’s more sad is not that it could be stolen, but that the police have no interest in such problems - such cases are almost never solved, so most often a criminal case is not even opened. Therefore, we again have to rely only on our own strength. Today we will find out how you can organize remote access to smartphone or a tablet based on Android OS, how to monitor your phone using certain programs and services.

How to track the location of a phone?

Today we’ll play a little secret agent and install certain software into our smartphone, with which we can do a little spying on the phone and its owner. Yes, yes, for smartphones and tablets running the Android system, as well as for the iPhone, there are applications with which via wifi you can not only work remotely with files and folders of your phone, but also track its movement on an interactive map. The most convenient of them is AirDroid (download). For her full use your phone must have ROOT access, that is full control over the entire system.

I just want to warn you that after opening all access rights, your phone will lose the factory warranty, so do it at your own peril and risk.

If this is the first time you've heard this concept, then your device most likely does not have root access. Obtaining superuser rights is a separate big topic, which I will write an article about in the future, but for now, watch the video at the end of the article, which I used to root my Samsung Galaxy Tab and Galaxy S2, as well as my detailed video tutorial on the Airdroid service.

For other devices it is also easy to find videos on YouTube.

So, download and install the AirDroid application from the Google Play Store and launch it on Android.
The program has two modes of operation - through home wifi network or via the Internet.

Let's start with local. Go to your computer at http://192.168.1.88:8888. The phone will display a request to allow the connection - allow it.

After this, the main screen with various program features will open on the PC. In the right window there is information about the mobile phone, in the left there are icons that you can use to control the phone, namely, transfer files, play music, movies, pictures, use the phone camera (by the way, this is a good way to use your device in a video surveillance system). There is no point in going into detail about each, but the most interesting properties are remote writing and sending SMS directly from the computer, as well as monitoring the mobile monitor (menu item “Screenshot”).

If you want to have access to the gadget via the Internet, then go to http://web.airdroid.com. Here we will need to register in the service - the process is familiar and uncomplicated.

After registration and authorization, we will be asked to register the phone in this service. To do this, take the phone again, go to the application and click on the figure icon in the right top corner.
Enter your account information here.
In the next window, click “OK”. Then “Enable” - we allow the application all administrative functions.

We return to the computer, log in again or simply refresh the page and get the same access as in the case of local connection. There is only one small BUT - when working with an Internet connection through the AirDroid service, you have a limit that limits the amount of data transferred. At the time of writing, it is 100 MB.

But this type also has undeniable advantages. For example, the phone search function - if you suddenly lost it, or it was stolen, or it’s a child’s phone, and you want to track where it is in this moment, then the map will show the location of your device (provided it is connected to the Internet via wifi or mobile Internet).

That's all for now! We will get to know some other programs in detail in future articles, so subscribe to the blog update feed - it will be interesting!

Android Remote Control

It’s as if, having learned that I was writing this article, Google had literally just launched a new, very convenient and useful service for owners of the Android operating system, which allows you to monitor your phone in real time on an interactive map. Until recently, such a feature was only available for Apple owners - now we don’t have to feel deprived. The benefit of this service is that if your phone is stolen or you lose it, its location can be easily determined. It is also very convenient to monitor your child’s movements through the phone. Previously, this was possible when installing third-party applications that required root access to the phone, which I wrote about above (about AirDroid), but now you don’t need to install anything additional to track the location of your mobile phone.

First of all, you need to attach your phone to this account. If you didn’t do this the first time you turned on the phone, when you were asked to create accounts in Google and Samsung/HTC/LG (or whatever you have), then you need to do it now.

Go to your mobile phone and go to the “Settings > Add account” section

Select “Google” here

If you are registering on Google for the first time, then select “New”; if you already have mail and an account, then you can connect an existing one. I will select “Existing”, enter the login in the form of an address mailbox to Gmail and its password.

After that, pull down on the phone top panel with notifications and open what just arrived from Google and activate the remote device manager.

We return to the website, refresh the page and get a map with a point indicating the location of your phone.

That's all - to consolidate your knowledge, I advise you to watch the video tutorial. This concludes our phone surveillance - I hope you found it interesting!

AirDroid review

We are used to having a smartphone at hand. In fact, it was conceived as a thing that should almost never leave one’s hands: a kind of portable electronic assistant that accompanies the owner everywhere. And in fact, even now the desired functionality has not yet been fully implemented - and as soon as it is possible to eliminate main problem mobile electronics (insufficient battery capacity), a lot of new useful functions are added to the smartphone. However, even now, when we reach for a smart phone and suddenly cannot find it, many are seized by real panic.

Partly this is a force of habit (we also realize when we don’t find a watch on our hand), partly the need for functions that we cannot perform without a smartphone (not just making a call, but, for example, remembering someone’s phone number! Electronic assistants have become unlearned us from remembering such little things). In short, there are a lot of situations in which the “magical” ability to use a smartphone without being able to touch it could be useful. But why is it magical? In fact, technology has been allowing this for a long time.

“Scientifically” using an electronic device from afar, without touching it, is called remote or remote access/control. And in general, it assumes the presence of two auxiliary programs. One must be pre-installed on the smartphone itself, the second must work on the computer from which access is organized (very often in Lately the browser acts as this second program).

And of course, there must be some kind of communication channel between the devices: in most cases this is Internet access, although sometimes just the ability to receive/send SMS messages is enough. You call your smartphone from your computer and can do almost the same things on it as if you were holding it in your hands. What’s also noteworthy is that from the outside, such use of a smartphone may not be noticeable.

This is how it looks in the general case - and before moving on to specific scenarios, it is worth mentioning one thing that is not obvious. Install the program remote access The law is allowed only on your own device or with the permission of the owner of the device, if we are talking about someone else. By installing such a program on the smartphone of a person who will not know about it (whether it is a colleague, a wife or a stranger), you will immediately violate at least Articles 272 and 273 of the Criminal Code of the Russian Federation: unlawful access to computer information and use of programs for unauthorized copying of computer information. Be careful, this is not a joke at all!

Now let's look at typical scenarios in which remote access can be useful. A list of the programs themselves is given below.

The most popular: anti-theft. As one American actress accurately noted, losing a mobile phone today is worse than losing your virginity: there is so much information stored there that can compromise the owner, so much information that the user cannot afford to lose! And then suddenly the smartphone is stolen!

Well, it will be good if it has a remote access application installed. By contacting it via the Internet or even simply sending a command in an SMS message (not all programs support it), you can force it to perform several useful actions in this situation: secretly take pictures of any of the cameras (there have already been cases when it was possible to photograph thieves or new owners), activate the microphone (that is, turn it into a listening device), block the smartphone and/or delete all data from it, find out its current geographical coordinates, contact the thief with text from the screen, or maybe turn on a loud alarm to attract the attention of others.

In most cases, these functions will be available only until the thief “resets” the device, that is, removes all user software from it, rolling back the state to the factory state. So act quickly and don't waste time. At the same time, some applications (for example, Cerberus) have the ability to be registered in system programs - and thus remain operational even after resetting the settings to factory settings.

By the way, simplest functionality Remote control is built right into Android and iOS: you will find it in the system settings, respectively in the “Options/Security” tab and the “Find My iPhone” tab.

It’s better, of course, if the smartphone is not stolen, but simply lost or forgotten. When they forget it, they usually don’t remember where exactly. Therefore, you can enable it remotely sound signal or vibration, request geocoordinates: you, of course, will find it when it “beeps” from under the sofa, or at least remember where you left it, having received the location on the map with an accuracy of a few meters.

But even until it is found, you can request contacts from it, enable temporary call forwarding, read SMS, view documents. The ability to remotely influence system settings is also useful: for example, turn off vibration and sound notification so that a forgotten smartphone does not disturb your family in your absence.

If it is lost and is already in a stranger’s pocket, the journal function will come in handy - in which all actions performed with the smartphone will be automatically recorded. However, this scenario smoothly develops into a theft scenario, so again, do not waste time, act quickly: if you cannot immediately agree on the return of the phone, notify your telecom operator and the police.

You can turn your smartphone into a webcam. This is especially useful for devices that have expired, the memory and performance of which are no longer sufficient for normal operation. So reset them to factory settings (thus removing everything unnecessary), install a remote access application - and you will get a smart camera with which you can organize surveillance of an area that interests you: a garden plot, for example, or a children's room. Such a camera is capable of automatically detecting motion and automatically adjusting shooting parameters to the current lighting conditions.

Related task: sharing files with a smartphone. It is not always convenient to receive documents stored on it via USB, as well as to “upload” files to a smartphone. A special case of remote access will help solve this problem: launching an FTP server on the phone, which will turn the device into a file archive - which can be accessed through any FTP client (for example, built into Total Commander). This may also be useful for playing files from a smartphone - say, photos - on another device, without first copying them.

Another parallel scenario: helping a friend. IN in this case you need to remotely access a smartphone that does not belong to you in order to see what the other person is doing wrong or show the correct actions. There is also a whole class of applications for this. It is important that you need to ask your friend to install such an application himself. Be aware of the problem of unauthorized access!

Finally, the reverse scenario: remote control computer from a smartphone. It is unlikely that many of you will need this, but if suddenly the need arises (for example, to remotely change the parameters of a program left running while you are away), know that there are tools for this too.

And here is the list of the applications themselves:

* Cerberus (one of the most powerful applications anti-thief class)