Position:Fast installation: The installation work of wireless local area network is very simple, it need not construction permit, do not need wiring or excavate groove, installation time is more economic than wired network a lot of.
Protective user already had investment: Monitoring dot needs to remove wireless equipment to new site to install only can, won't need completely new laid like wired network.
Wireless monitoring and video monitoring
1. video supervisory system develops 3 level
Video supervisory system basically finishs the job that transmits the video document that is collected in real time by monitoring dot in time monitoring center. Because partial monitoring target is dynamic target, or it is monitoring dot distributings in vaster area, and the distance with monitoring center is further, solution of existing wired supervisory system (include fiber-optic, ADSL to wait be based on wired plan) hold high because of laid cost or cannot wiring and come true hard, it is OK to use wireless monitoring fast, convenient wiring enclothes far end area. And the development of video supervisory system also was experienced by wired to 3 wireless phase.
(1) imitate video supervisory system
News of this system picture uses video cable, transmit with imitate means, general transmission distance cannot too far, main application surrounds the monitoring inside at Xiaofan, monitoring image can be examined in control center only commonly. Imitate system composition basically includes equipment to be as follows.
① front equipment: ⒃ of Lang Tiao spreads ㄒ to make an appointment with maltose of bully shop ń to sincere Jian is taken
② terminal controls: Uncut jade builds Di of of ⒒ of toad of an ancient small-mouthed wine vessel thanking tan1huan4 to show of Tiao of cangue of ⒙ of otter of of duckweed of Piao of ⒖ of a huge legendary turtle of leisurely of Suo of ⒓ of yttric a huge legendary turtle is taken
③ signal transmits medium: Pu of Piao of Hui grand ⒖ kowtows take
(2) the multimedia supervisory system that is based on PC
This supervisory system inserts video clip to form by the PC, in monitoring spot, have a certain number of camera, all sorts of detecting head of newspaper police officer and data equipment, they pass respective transmission line, time receive monitoring terminal- - on the PC.
The ability of high speed data processing that is based on the multimedia supervisory system of PC to use the computer has video collect and handle, the high resolution that uses video realizes the much picture of image to show, improved picture quality greatly thereby. This kind of multimedia that is based on a PC advocate system controlling a station calls the 2nd generation to digitlize supervisory system of this locality video.
Structure of this system composition is: Compatible / labour accuses a PC video collects card common / more reliable operation platform application software.
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