一种智能门锁的锁舌到位检测电路及智能门锁

Abstract

本实用新型公开了一种智能门锁的锁舌到位检测电路及智能门锁，电路包括主控模块、电机驱动模块、检测模块；电机驱动模块、检测模块与主控模块电连接；检测模块与门锁锁舌及其驱动机构分离设置，以便进行改造；检测模块与门锁锁舌的驱动电机的驱动齿轮对应设置，以便获取驱动齿轮转动信号，并向主控模块传输脉冲信号；主控模块用于根据检测模块传输过来的脉冲信号进行锁舌行程的计算。检测模块与门锁锁舌及其驱动机构分离设置，以便进行改造，主控模块用于根据检测模块传输过来的脉冲信号进行锁舌行程的计算，降低了功耗，提高了直流电机的寿命及行程计算的准确性。

Claims

1. A lock tongue positioning detection circuit for a smart door lock, characterized in that it includes: Main control module; Motor drive module; Detection module; The motor drive module and the detection module are electrically connected to the main control module, respectively. The detection module is separated from the door lock tongue and its drive mechanism for modification purposes; The detection module is configured to correspond to the drive gear of the drive motor of the door lock tongue, so as to obtain the rotation signal of the drive gear and transmit the pulse signal to the main control module; The main control module is used to calculate the bolt travel based on the pulse signal transmitted from the detection module.

2. The deadbolt-in-place detection circuit of an intelligent door lock according to claim 1, wherein, The detection module includes: Signal generating elements; Signal detection element; First filtering unit; The signal generating element is disposed on the drive gear; The signal detection element is configured to correspond to the signal generating element on the drive gear, so as to acquire the signal emitted by the signal generating element; The first filtering unit is electrically connected to the signal detection element.

3. The deadbolt-in-place detection circuit of a smart door lock of claim 2, wherein, The signal generating element is a magnetic element, and the signal detection element is a Hall switch.

4. The deadbolt-in-place detection circuit of an intelligent door lock according to claim 3, wherein, The Hall switch includes: First Hall pin, second Hall pin, and third Hall pin; The first filtering unit is electrically connected to the first Hall pin; The second Hall pin is electrically connected to the main control module; The third Hall pin is grounded.

5. The deadbolt-in-place detection circuit of an intelligent door lock according to claim 4, wherein, The first filtering unit includes: First filter capacitor; The first terminal of the first filter capacitor is electrically connected to the first Hall pin and the input power supply. The second terminal of the first filter capacitor is grounded.

6. The deadbolt-in-place detection circuit of a smart door lock of claim 1, wherein, The main control module includes: Main control chip and second filter unit; The main control chip includes a first main control pin and a second main control pin; The second filtering unit is electrically connected to the first main control pin and the second main control pin, respectively.

7. The lock tongue positioning detection circuit of the smart door lock according to claim 1, characterized in that, The motor drive module includes: Driver chip and third filter unit; The third filtering unit is electrically connected to the driver chip.

8. The deadbolt-in-place detection circuit of an intelligent door lock according to claim 6, wherein, The second filtering unit includes: Second filter capacitor, third filter capacitor and fourth filter capacitor; The first terminals of the second, third, and fourth filter capacitors are connected together, and their common connection point is electrically connected to the input power supply. The second, third, and fourth filter capacitors are all connected to ground after their second terminals are connected together.

9. The deadbolt-in-place detection circuit of an intelligent door lock according to claim 7, wherein, The third filtering unit includes: Fifth filter capacitor, sixth filter capacitor; The first terminals of the fifth and sixth filter capacitors are connected together, and their common connection point is electrically connected to the input power supply. The second terminals of the fifth and sixth filter capacitors are connected together and then grounded.

10. An intelligent door lock, characterized by Includes the latch position detection circuit of the smart door lock according to any one of claims 1-9.

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