VisorNET

" Video & Audio transmission equipment for security applications and  services "

MPEG4 streaming video:  Since 2002, Telsec has been investing a considerable amount of its engineering resources in developing and perfecting  its own MPEG4 video compression technology. MPEG4 provides the most efficient video compression ratio available in the industry, offering unmatched performance both for low bandwidth (as low as 4 Kbps) and high speed (ADSL or Cable) applications and telecommunication lines.

VisorNET's MPEG4 codec offers a much higher efficiency than any other video standard both for video transmission and video recording applications. As shown in the chart below, MPEG4's compression ratios can be as much as 5 times more efficient than traditional JPEG based solutions.

To see how MPEG4 offers a much higher performance than MJPEG under the same bandwidth and image/movement conditions, click on the links below. As you'll be able to see, MPEG4 offers between 4 and 6 time the performance in terms of frames per second and it uses much less bandwidth.

 Note: Quicktime player 5.0 or higher is required to view the video files. Should you need to install the cquicktime player, click here to access Quicktime's download page.

Independent transmission and recording: The VisorNET is capable of compressing each video stream from every camera two times so that every camera can be simultaneously used for recording and transmission. This means that each camera is going to be treated differently for recording and for transmission purposes, allowing for the best possible quality for local recordings and optimized performance through the internet (with dynamic bandwidth conditions).

Video alarms with pre and post alarm images:  Upon the activation of one of its alarm inputs, the VisorNET equipment can be programmed to capture a video sequence and send it to the monitoring central station. The video sequence length ranges from 4 seconds to up to 6 minutes per camera (depending on the equipment version - regular configurations support up to 14 seconds).

Networked and local recording capabilities: VisorNET is Telsec's basic video transmission unit for video alarm verification and video monitoring but as there are a number of applications that, as well as a high performance in video transmission, also require local recording capabilities, Telsec has developed the concept of "Network Videol Recorder", known as NVR, and endowed the VisorNET unit with the capability to make both local and remote recordings using this technology. 

Each VisorNET camera can be programmed to make continuous, day, night or event driven recordings to any VisorDISK unit accessible either through the LAN (local recording) or, in fact, accessible anywhere on the internet (remote recording). The VisorDISK unit is Telsec's NVR equipment and is capable of holding up to 2 standard hard drives (500GB with nowadays hard drive sizes).

One of the advantages of NVR recordings is that the video transmission unit is independent of the recording media, which allows for independent maintenance of both units (hard drives do have more maintenance problems: fragmentation, drive failures...) and thus, it provides a more reliable system with less downtime periods. For more information about the VisorDISK NVR solution, click here or go to the documentation area of this website for brochures, manuals and technical specification. 

Networked video and audio: The VisorNET 4C units, in its three versions: desktop, wall-mount and rack mount, is a network video transmission unit designed to work over almost any kind of IP network. Several VisorNET 4C units can be installed in one same local area network (LAN), all of them working together as one single logical unit and transmitting video and audio through the same telecommunication line: telephone, ISDN, ADSL, Cable.... In fact, one of the VisorNET units will be designated as the "master unit" and will be the one routing all the video and audio streams to the central monitoring station or to an authorized internet user.

Master/Slave configurations for up to 16 cameras: In those installations where more than 4 cameras are needed, the VisorNET units can be stacked and work and programmed to work as one single 16 channel unit. This modular architecture present the following advantages:

Modular VisorNET installation for up to 16 cameras working together as one single logical unit