Intelligent burglar alarm
A technology of anti-theft alarm and anti-theft device, which is applied in the field of alarm, and can solve problems such as theft of power transformers or farm cattle, theft of store items, and large volume.
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[0016] Before use, the phone number of the owner is pre-stored in the mobile phone, and then the P1 plug of the two-way switch control module Y1 is connected to the M1 socket of the mobile phone.
[0017] The P2 plug of the intelligent anti-theft alarm is connected to the AC220V working power supply, the main switch S1 is placed in the closed position, the AC220V power supply is stepped down by the step-down transformer T, and then passed through D1, D2, D3, D4 diode bridge rectification, C1, C2 electrolytic capacitor filter , 7809 chip regulator, and finally output DC9V. The 9V positive pole voltage passes through the 5th pin, 2nd pin, and 1st pin of the K1 relay, and finally returns to the negative pole of the power supply to form a closed loop, and the K1 relay starts to work. At this time, pin 3 and pin 5 of the K1 relay are turned on, and pin 3 and pin 4 are disconnected. The intelligent anti-theft alarm is powered by AC220V power supply, and the DC9V backup battery VCC1 ...
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