Digital intelligent light-controlled antitheft mobile phone
A digital and mobile phone technology, applied in anti-theft alarms, reducing energy consumption, telephone communication, etc., can solve the problems that the anti-theft scheme has little practicability and value, is not suitable for large-scale promotion, and the transmission and reception codes are limited. Strong popularization, simple structure and high safety performance
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[0025] Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail:
[0026] figure 1 The present invention shown includes a mobile phone body, a battery, a light control switch, a magnetic control switch, and an alarm circuit, and password verification software is installed in the mobile phone system memory. The light control switch is connected to the alarm circuit, and the alarm circuit Connected to the magnetic switch.
[0027] The light control switch is mainly composed of a photoresistor, a photodiode, a phototransistor, a combined circuit of a photodiode, a resistor, a triode, and a photosensitive sensor. There are many combinations possible:
[0028] 1. If figure 2 As shown, the photoresistor can be connected with the voltage comparator to set the changing range of the light. When the light intensity is within the set intensity, the comparator outputs a low level to maintain the current state of the circui...
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