Live video on the Internet - the end of restrictions
IP Power Switch & Watchdog - turn on devices via the Web

We are witnessing rapidly growing significance of multimedia communications technologies. The Internet is the medium that quickly adopts the latest developments. One of modern services is implementation of video streaming on websites. In most cases it is carried out using expensive professional systems dedicated for large companies. The systems usually have a number of restrictions:

Aviosys megapixel camera is a milestone in the field of live imaging on the Web. It solves the above problems, combining the functions of:

IP Power Switch & Watchdog (4-ch) Aviosys 9258HP
N3410

The preview by the Web is implemented as follows: if one uses the IE, for the first time a window appears, informing about the need to install ActiveX. After consent, the user can view the live image in the browser window. However, if one employs a competitive solution (Firefox, Opera, Chrome), the prompt does not appear - the MJPEG stream automatically allows to display the image.

Megapixel camera has a relatively high demand for bandwidth. Of course, a great impact also have the refresh rate and applied type of compression. So it is important to have the possibility of configuring all parameters that consume bandwidth and influence image quality.

Of course, all instructions can be found in the accompanying manual. However, a big advantage for the user is access to the HTML code which should be merged into the main code of the web page, as well as to the code of the video stream generator - with freely selectable parameters. It depends on the users whether they want to employ the supplied template to create a specific layout, or perhaps they only need the code to combine the video stream into a previously designed website.

Embedding HTML code to display the video

Placing a website on the Internet, we can either use our own web server or select a company to host the website. Aviosys solution is based on a simple premise: when the online camera is to operate on a continuous basis to provide the visitors live video, it is most convenient to use the camera as the web server. Therefore, the camera is equipped with 2 GB memory (expandable), where we can easily upload all the HTML code, which will then be available to the Internet users as the website. Of course, to get everything to work correctly, we must configure an Internet connection and the DNS server (DDNS).

My Web - uploading HTML code into camera memory

A major limitation in the transmission of video over the Internet is the number of simultaneous connections to the video streaming source. On one hand, it is restricted by he bandwidth of the network connection, on the other by the possibilities of the camera itself. It is obvious that the number is significantly limited by the computing power of the camera. The solution is known - use of streaming servers, whose function is to receive the stream from the camera and distribute it among many users. This method eliminates both the problem of bandwidth and computing power, but has one disadvantage: it is not a cheap solution. However, Aviosys company offers not only hardware but also stream servers, cooperating with all Aviosys models. The service is configured automatically when the camera is set up to work on the Internet.

Aviosys streaming servers

As already mentioned, the camera has a built-in memory. Of course, in addition to HTML content, it can record the video locally. At any time the users can download the files onto their PCs or play them directly through the network. Some models of the cameras allow to take out the filled up SD card and replace it with another one. These features allow to create fully functional video monitoring systems, especially that the cameras are supplied with application software supporting up to 16 devices. The recording can be performed by a schedule or may be triggered by motion detection or even by loss of network connection. The latter is especially important if we do not want to lose even a second of recording if the network transmission fails for some reason.

Due to the unique characteristics of the Aviosys cameras, they can be used in megapixel video surveillance systems, in video monitoring systems with distributed recording, as well as can be web servers with built-in video stream generators.

So the applications include:

IP Power Switch & Watchdog Aviosys 9258HP N3410 allows remote control of four AC power outlets (via the Internet network) - switching on/off up to 4 devices powered via the outlets. One of its distinguishing features is the ability to set for each output a specific date and time when the connected device is to be switched on/off or reset (switched off and on). The configuration is done using multi-event scheduler.

Integration of the camera(s) with the watchdog enables:

IP Power Switch & Watchdog (4-ch) Aviosys 9258HP - N3410

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The installation allows for:

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The installation enables remote switching on and off household electrical systems and appliances:

The control is very comfortable - can be maintained manually at any time or periodically (e.g. to simulate the presence of people in the home to lower the risk of burglary, to turn on heating before arrival etc.). The functions can be programmed in the device memory (schedule), or triggered via the Internet.

• Control of a level crossing and a gateway.

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The installation allows to:

Remote control of various devices can be achieved using wireless transmission means provided by ULTIAIR equipment (it requires mutual visibility of the points), or employing optical transmission equipment of ULTIMODE series. Thanks to the use of ULTIMODE media converters, the remote devices can be controlled over distances of a few kilometers from the management center. The optical equipment applied in the example above meets the high reliability requirements.

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Network units operating round-the-clock require periodic resets in order to clear the buffer. Devices such as access points have mechanisms which control their operation. However, when the device is completely hung (its entire operating system), the restart is necessary to restore its normal operation. The watchdog has the ability to automatically monitor the connected network devices (monitoring based on PING utility, using ICMP request and response packets to detect the hung device) and to perform reset (switching power off and on).

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Remote restart of infrastructure devices (e.g. in a cable TV network) eliminates the need of sending a serviceman just to restart them. The operator can perform it remotely via the Internet.

View of the preview and management window of AVIOSYS N3410

Using any web browser, the watchdog and AVIOSYS cameras, the user can monitor several rooms and switch on or off lighting, heating, open/close a gateway, reset a server or a headend etc. The interface is very convenient - on the single website the user has the preview from all camera points and access to all control functions.