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Visual doorbell use
2012-07-21 10:02:30

 

Along with the people living standard enhancement, the material also had a higher request, intelligent home furnishing is more and more attention, in the intelligent home furnishing radio visual doorbell which play a decisive role in occupy position, wireless video doorbell to overcome the traditional visual doorbell wiring length, installation is inconvenient shortcomings, very suitable for that deep residential. On the function of wireless video doorbell products features: 1visual intercom function: the visit, the doorbell intercom calls, free speech is clear, as in front of;2 outdoor monitoring function: the strange sound, touch, they stick out a mile, safety has safeguard;3remote control unlocking function: family home too late; the outside the weather is too cold; I don't want to rise; in front of the computer does not want to get up and come; a slight press, visible, the automatic unlocking;4photo archive function: the master was not at home, there is a visitor. Just come to light the doorbell, automatic camera store, master came back to free inquiry. Don't miss an important meeting;5tamper alarm function: if the door machine is destructive, building intercom indoor machine and the outdoor machine will alarm.

The machine uses a very wide range, in addition to used as a wireless video doorbell outside, still can make the distance range wireless monitoring or made into a small U Av transmitters use. At the same time the ad hoc camera output signal, also can be used for surveillance video signal cable. Wireless video doorbell circuit as shown in the figure. It is composed of camera, U RF box, three levels of broadband RF amplifier, a doorbell circuit, control circuit. Drawings by microwave radio frequency amplifier triode QI, QZ, Q3etc.. The doorbell circuit, transmitting circuit, a delay circuit composed of CD4o13, Q4, QS, Q6, Q7etc.. When pressed the doorbell switch, CD4013article of foot for about 4 seconds the voltage output for a music doorbell circuit, the first foot for about 30 seconds delay output voltage for transmitting circuit and circuit, for the benefit of the Master heard the door bell, have sufficient time to turn on the television or switch to the corresponding television channel viewing to people, to determine personal identity. As for wireless video monitoring or U transmitter is used, as long as the doorbell switch is closed. When the external audio, video input signal, in audio and video signals to automatically disconnect. This can be other audio and video signals, ....

Along with the people living standard enhancement, the material also had a higher request, intelligent home furnishing is more and more attention, in the intelligent home furnishing radio visual doorbell which play a decisive role in occupy position, wireless video doorbell to overcome the traditional visual doorbell wiring length, inconvenient installation faults, very suitable for that deep house. On the function of wireless video doorbell products features: 1visual intercom function: the visit, the doorbell intercom calls, free speech is clear, as in front of;2 outdoor monitoring function: the strange sound, touch, they stick out a mile, safety has safeguard;3remote control unlocking function: family home too late; the outside the weather is too cold; I don't want to rise; in front of the computer does not want to get up and come; a slight press, visible, the automatic unlocking;4photo archive function: the master was not at home, there is a visitor. Just come to light the doorbell, automatic camera store, master came back to free inquiry. Don't miss an important meeting;5tamper alarm function: if the door machine is destructive, building intercom indoor machine and the outdoor machine will alarm.

The machine uses a very wide range, in addition to used as a wireless video doorbell outside, still can make the distance range wireless monitoring or made into a small U Av transmitters use. At the same time the ad hoc camera output signal, also can be used for surveillance video signal cable. Wireless video doorbell circuit as shown in the figure. It is composed of camera, U RF box, three levels of broadband RF amplifier, a doorbell circuit, control circuit. Drawings by microwave radio frequency amplifier triode QI, QZ, Q3etc.. The doorbell circuit, transmitting circuit, a delay circuit composed of CD4o13, Q4, QS, Q6, Q7etc.. When pressed the doorbell switch, CD4013article of foot for about 4 seconds the voltage output for a music doorbell circuit, the first foot for about 30 seconds delay output voltage for transmitting circuit and circuit, for the benefit of the Master heard the door bell,Return Home] [Print] [Go Back]   

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