Wednesday, December 15, 2010

Scenic road wireless video surveillance system programme (1)

Programme background

As the economy gradually prosperity, scenic traffic real-time monitoring to become increasingly important to develop a comprehensive traffic image management system is the goal of traffic management departments.

Traffic intersection video surveillance system through the establishment of the coverage area of the main roads and junctions, digital network with the appropriate image monitoring equipment and the software, you can run the status of traffic intersection vehicles delivered to the dispatch centre in real time, on the road vehicle health monitoring. At the same time, the public security traffic management departments according to the actual situation at the scene to road traffic control, vehicle arrangements to open sections, reduce congestion and ensure the smooth flow of road traffic, the realization of the scenic area of intelligent traffic management.

Building needs

Scenic crossing main complete video surveillance system will be monitored real-time collection of traffic video file timely transmission to the Monitoring Centre's work.

After the establishment of the system, the public security traffic management departments can real-time understanding of various roads and junctions scenic areas, and can quickly deploy police deal with dangerous situations, saving manpower, to better manage the traffic environment improvement.

1, in the scenic area of major traffic intersection point a video collection, video image digital transmission by wireless networks.

2. build coverage area regional wireless network system, connecting dispersed in all the main traffic junctions of video monitoring point.

3, video monitoring, clear and smooth (definition of not less than 300 lines, image display speed can reach up to 25 frames/sec).

4, the system has good scalability, with the monitoring point increase, to increase front-end equipment and upgrade the software.

5. user adoption and TV wall in surveillance Center, you can understand the main traffic junction of transportation, you can carry out continuous 24 hour surveillance.

6. have the monitoring, recording, playback, transfer and backup features, the scene took to the video image may be stored as vehicle violation processing traffic enforcement evidence.

Scenic road wireless video surveillance programme features

Because of the scenic area traffic intersection monitoring and traffic control centres are more distant and dispersed more dispersed, traditional way of network wiring cost is very high, long construction period, and scalability, flexibility, and once the need to increase or decrease is monitoring points, will bring new construction cycle.

Wireless networks can be more monitoring points and traffic control centre, and set up quickly, you can in the shortest possible time to quickly set up a wireless network link.

Use of wireless network bridge can support up to 50 km of the bridge.

In order to guarantee the stability of the video compression file transmission must have sufficient network bandwidth, different video compressed files on the network bandwidth requirements, in order to achieve better video quality, network bandwidth is even more important.

Wireless network standard protocol IEEE802. 11a defined network bandwidth to 54Mbps, effective data transmission bandwidth as 36Mbps, 54Mbps Wireless link can achieve high network bandwidth, fully able to guarantee the adoption of digital video MPEG-4 format stream stable reliable transport, wireless video monitoring purposes.

Wireless video surveillance system has the following advantages and characteristics:

1. install easy: use a wireless network, avoid or reduce the workload of network cabling, without destroying the original environmental facilities, has a short construction period, the characteristics of high cost performance.

2. fast coverage: wireless network system maximum advantage is the ability to achieve rapid coverage.

Using point-to-multipoint wireless communication method, generally only need to install one or more wireless hub device, you can set up covering the entire area regional broadband wireless access network system.

3. flexibility: the scenic traffic intersection has a wide distribution, geographically dispersed.

Use the wired network inflexible, must, as far as possible, taking into account the needs of future development, which must be preset large utilization information points lower. After the completion of the wireless network, wireless signal coverage zone of the location wireless terminal station, you can implement network access, with high flexibility.

4. scalability: when the need to increase the business point, without the need for extensive modification of the network, as long as the increase or decrease by the monitoring point wireless device, you can complete the monitoring point increase or decrease.

Programme description

[1] [2] [3]

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