Anti-clamping mechanism of TMR magneto-resistance sensor

A technology of magnetoresistive sensor and rotational speed sensor, applied in the field of intelligent anti-pinch, can solve problems such as customer injury to children, electric door without anti-pinch function, etc.
CN109488197AInactive Publication Date: 2019-03-19上海容之科技集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海容之科技集团有限公司
Publication Date
2019-03-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an anti-clamping mechanism of a TMR magneto-resistance sensor, which comprises an anti-clamping system, wherein the anti-clamping system comprises an isolation shaping circuit,a display circuit, an alarm circuit and a single-chip computer, a signal input port of the single-chip computer is connected with a TMR rotating speed sensor, a TMR current sensor and an infrared scanning inductor, a signal output port of the single-chip computer is connected with a relay, a signal output port of the relay is connected with a motor, the motor comprises a rotor, the motor is fixedly arranged on a side wall of a top end of a door frame through a mounting plate, the motor is connected with a rotating roller, the other end of the rotating roller is rotatably connected with the side wall of the top end of the door frame, an anti-theft rolling door is wound on the rotating roller, and a buffer plate is horizontally and fixedly arranged on the bottom end surface of the anti-theft rolling door. The mechanism uses a mode of outputting pulse counting by using the TMR magneto-resistance sensor, the combination of detecting the rotating speed of the motor and detecting the current change condition of the motor is achieved, and the anti-clamping function is achieved.
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Description

technical field

[0001] The invention relates to the technical field related to intelligent anti-clamping, in particular to an anti-clamping mechanism of a TMR magnetoresistive sensor. Background technique

[0002] With the advancement of Internet of Things technology, the components and assemblies of smart containers are also developing towards mechatronics. A large number of electronic devices are used in smart cabinets. For the convenience of customers, a large number of smart cabinets use electric doors, and potential dangers also follow. Events of electric doors pinching fingers happen from time to time, and electric doors do not have anti-pinch functions. Cause harm to customers, especially children. For the sake of safety, it is absolutely necessary to develop an automatic door control module with anti-pinch function for smart containers, and the anti-pinch function has become an inevitable trend.

[0003] At present, the electric door anti-pinch device mainly adopts...

Claims

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