Abstract: Based on wireless local area network ( Wi-Fi ) positioning system has strong expanded function: Wi-Fi mobile phone communications intercom and positioning, go out personnel positioning in the whole course and video surveillance, access control systems integration, consumption card and wristband integration, attack vital signs of remote measurement, perimeter alarm and image behavior recognition alarm can alarm personnel identification.
System overview
Prison and detention as a social public security management is one of the most important parts of management, is the mandatory detainees places. Inspect any accident, will bring huge pressure to the social order, and even cause serious social consequences. Improve prison security management level, build prison management information system, unified planning and construction at all levels of the prison management information system has become an inevitable trend. In view of the above problems, and frequency technology used the independent research and development of WiFi real-time positioning technology, by police and detainees real-time accurate position will be video system, access control systems, perimeter systems are combined, the isolated system linked up. Wireless real-time positioning system to realize the active help, detachment, track, no police escorts, the many kinds of alarms, and provide real-time automatic roll, patrol statistics automation function.
System components
System consists of electronic wristband, electronic label, WiFi locator, locator engine and electronic map. The product is based on foreign prisons generally used in WiFi real-time positioning technology, has high positioning accuracy, accurate identification, receiving distance, high security, network function etc..
System advantage
1) WiFi positioning accuracy to the cell. Excellent frequency and WiFi positioning based on the signal intensity of the fingerprint algorithm, simple and convenient and can meet the requirements of. While the RFID positioning way is through the base station receives a signal from the base station to calculate which nearly, a base station determines a position, if the need to improve the accuracy on the need to deploy more base stations.
2) WiFi high recognition rate and positioning speed. WiFi network to support tens of megabytes of data wireless transmission, so the WiFi anti collision protocol is the best. Excellent frequency technology in WiFi anti collision protocol on further optimization, with independent patent is more suitable for WiFi positioning protocol. Our positioning system in 2 seconds to realize the building of thousands of people orientation.
3) the safety of WiFi encryption algorithm. WiFi is the world 's most popular for wireless data transmission, in banking, government, the security in use. The new WiFi encryption way has not been deciphered. While many RFID is a private encryption methods, did not pass the test.
4) wireless broadband scalability. Wi-Fi wireless network bandwidth has reached hundreds of megabytes, it can realize voice, video, positioning, wireless sensing functions. And the network has the very strong compatibility, support for WiFi mobile phone / intercom, notebook / tablet computer, for monitoring the mobile office, mobile security provides the basis for future wireless network, avoid duplication of investment.
5) system stability. Wi-Fi positioning system is based on Internet network protocol, can support tens of thousands of personnel positioning. At present our positioning system has been in Inner Mongolia, Zhejiang, Hebei, Yunnan, Shanghai, Jiangsu, prison, as well as Hubei, Heilongjiang and the stable operation of.
System function
1) officers active pushbutton alarms and fixed-point wireless alarm
2) in real-time location information, through the electronic map display location, information, state
3) detainees activity historical track playback
4) prisoners leave specific area alarm, alarm, no police escort disappear alarm, alarm, fault alarm off line
5) support after an alarm out around the video, as well as the track playback and video linkage.