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Non-contact vehicle door anti-pinch alarm device based on millimeter wave detection

A non-contact, alarm device technology, used in passenger warning devices, stations, transportation and packaging, etc., can solve the problem of low detection accuracy of foreign objects in doors, and achieve the effect of improving the accuracy.

Active Publication Date: 2021-08-13
BEIJING HUNRAY TECH
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Problems solved by technology

[0006] The embodiment of the present application provides a non-contact car door anti-pinch alarm device based on millimeter wave detection to solve the technical problem of low accuracy of car door foreign object detection

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  • Non-contact vehicle door anti-pinch alarm device based on millimeter wave detection

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Embodiment Construction

[0052] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0053] Please refer to figure 1 , a non-contact car door anti-pinch alarm device 100 based on millimeter wave detection provided in the embodiment of the present application, including:

[0054] The millimeter-wave radar 11 is used to transmit a detection signal for the vehicle door; it is also used to receive a reflected signal reflected by the vehi...

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Abstract

The invention provides a non-contact vehicle door anti-pinch alarm device based on millimeter wave detection. The device comprises a millimeter wave radar used for emitting a detection signal aiming at a vehicle door and receiving a reflection signal reflected by the vehicle door according to the detection signal; a calculation module which is used for calculating a distance difference value between the distance between the vehicle door and the millimeter-wave radar before the vehicle door is opened and the distance between the vehicle door and the millimeter-wave radar after the vehicle door is closed according to the reflection signal, and a signal intensity difference value between the reflection signal intensity before the vehicle door is opened and the reflection signal intensity after the vehicle door is closed; a detection module which is used for detecting whether foreign matters exist on the vehicle door or not according to the distance difference calculation result and the signal intensity difference calculation result; and a warning module which is used for sending out warning information when the detection module detects that the foreign matter exists in the vehicle door. Therefore, whether foreign matters exist at the vehicle door or not can be quickly detected when the vehicle door is closed, and the accuracy of foreign matter detection is improved.

Description

technical field [0001] The present application relates to the technical field of security monitoring, in particular to a non-contact car door anti-pinch alarm device based on millimeter wave detection. Background technique [0002] The opening and closing of the door is the basis for the safe operation of the vehicle. The door should be kept in a good closed state before opening and after closing. However, due to mechanical failure or entrainment of foreign matter, etc., it may cause the dangerous operation of foreign matter after the door is completely closed, which will cause a major safety hazard. Therefore, it is necessary to detect and confirm whether foreign matter is entrained in the closed state of the car door. In the prior art, the detection of foreign objects in the car door can be realized through a non-contact optical detection device installed on the platform, such as a laser through-beam detection device. This type of device uses the signal characteristics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61B1/02B61K13/04
CPCB61B1/02B61K13/04
Inventor 赵宏钟张合敏
Owner BEIJING HUNRAY TECH
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