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Title:
ANTENNA TESTING CIRCUIT AND VEHICLE-MOUNTED DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/232290
Kind Code:
A1
Abstract:
An antenna testing circuit (30) and a vehicle-mounted device, wherein by adding a sampling circuit (100), a control circuit (200) and a switch circuit (300), the antenna testing circuit (30) implements the voltage acquisition of a power source (10) of an antenna (20), the comparison of the voltage of the power source (10) of the antenna (20) with at least one preset voltage threshold, and the control of the connection between the power source (10) and the antenna (20) according to the comparison result. That is, by setting the preset voltage threshold as a short-circuit voltage and an open-circuit voltage, the control circuit (200) can recognize the operating state of the antenna (20) by determining whether the voltage of the power source (10) of the antenna (20) is a fault voltage such as the short-circuit voltage and the open-circuit voltage, so as to automatically control whether the power source (10) is connected to the antenna (20), thereby reducing labor cost and time cost. Moreover, damage to the power source (10) caused by the power source (10) continuing to supply power to the antenna (20) when a fault such as a short circuit occurs in the antenna (20) is avoided, and the problem that power source (10) are damaged or even burnt down due to the fault in the antenna (20) in conventional power supply circuits for the antenna (20) is solved.

Inventors:
HAN, Wang (CN)
FAN, Zhanghua (CN)
Application Number:
PCT/CN2020/091317
Publication Date:
November 25, 2021
Filing Date:
May 20, 2020
Export Citation:
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Assignee:
STREAMAX TECHNOLOGY CO., LTD. (CN)
International Classes:
H01Q1/50
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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