but not all environment can be applied to wireless monitoring, such as, in the basement, the inside of the building,2014 best wireless surveillance cameras, big city high-rise buildings in place, these places are more difficult because of the wireless monitoring, wireless monitoring microwave video transmission is a straight line propagation, encounter obstacles must add relay, if the barrier is too much it's difficult!
wireless monitoring transmission principle: monitoring front end camera mounted on a circular enclosure, with full tilt. Into modulated video signal is transmitted to the image produced by the microwave transmitter, microwave transmitter will be loaded onto the carrier, the microwave antenna directional radiation to the monitoring center. Directional antenna control center receives microwave signal to the frequency of S filter,2014 about cctv camera systems, the signal amplification and conversion to 30dB receiver can handle frequency to the microwave receiver, microwave receiver video signal to the hard disk video recorder or monitor, hard disk recorders segmentation display and video playback image, may at any time. Hard disk recorders send remote control instruction, the coding interface module after treatment, sent to the transmitter (230MHz), the omnidirectional antenna radiation to the monitoring front end. Monitoring of
wireless monitoring? What are the main uses of wireless monitoring? What is the wireless monitoring? Wireless monitoring what advantage? Wireless video monitoring means no wiring (Xian Lan) the advantages and features of monitoring system of wireless monitoring system for transmission of video,2013 best home security monitoring service, voice,security cameras video, data and other signals using radio waves: in some not wiring or bad wiring,2013 2.4 ghz wireless surveillance system, can use the wireless video monitoring quickly controlled transmission products, set up a wireless video transmission network, wireless microwave like wireless aerial cable, according to the special environment and monitoring requirements. Low cost,2014 small business security cameras, only a one-time investment, the construction is simple, fast, put things right once and for all,2013 ge surveillance cameras, without trench buried pipe, especially suitable for outdoor distant places; in many cases, users are often due to the geographical environment and work content restrictions, such as mountain, port and open spaces and other special geographical environment, brought great inconvenience the cabling cable transmission cable network,2014 cctv camera systems home, the construction cycle, the cable will be very long, even impossible. Then, using wireless can get rid of the bondage of cable installation, short cycle, easy maintenance, expansion ability,2014 buy security cameras, rapid recovery cost advantage; flexibility, scalability, fast installation,2014 home security camera system, without the need for new transmission network, increase the laying equipment, be an easy job to realize remote video monitoring. Low maintenance cost, one-time investment of non operating expenses. The powerful system function, flexible use...
wireless monitoring principle and application of
The transmission principle of
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