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Antenna state detection device and method and electric vehicle

A technology for detecting device and antenna state, which is applied in short circuit test, continuity test, electrical connection test, etc., and can solve the problems that the antenna detection circuit cannot be detected, and the connection between the external antenna and the wireless device is unsuccessful, etc.

Inactive Publication Date: 2020-06-19
NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, even if the external antenna is correctly installed on the antenna position, the connection between the external antenna and the wireless device will fail, and the existing antenna detection circuit cannot detect the cause of the above situation

Method used

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  • Antenna state detection device and method and electric vehicle
  • Antenna state detection device and method and electric vehicle
  • Antenna state detection device and method and electric vehicle

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] The detection device provided in the present application can not only detect whether the connection state of the external antenna is normal, but also detect the antenna short circuit state of the external antenna. The working principle is explained below in conjunction with the accompanying drawings.

[0043] Such as figure 1 As shown, t...

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Abstract

The invention discloses an antenna state detection device and method and an electric vehicle. The device comprises a first resistor, a second resistor, a third resistor, a fourth resistor and a microprocessor. The first end of the first resistor is connected with a power supply, the second end of the first resistor is grounded through the third resistor and the fourth resistor which are connectedin series, the second end of the first resistor is connected with the first end of the second resistor, the second end of the second resistor is connected with the first end of the antenna, and the second end of the antenna is grounded; the microprocessor is used for obtaining the voltage of the common end of the third resistor and the fourth resistor to judge the state of the antenna; wherein thestate of the antenna comprises a normal connection state of the antenna, a disconnection state of the antenna and a short-circuit state of the antenna. By adopting the technical scheme of the invention, maintenance personnel can detect the fault reason of the antenna according to the detection device without carefully checking, so that the maintenance efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of antenna state detection, in particular to an antenna state detection device, method and electric vehicle. Background technique [0002] With the development of electronic communication technology, wireless devices generally implement communication functions through external antennas, for example, car antennas. The external antenna is no longer limited to listening to the radio, but covers multiple functions such as wireless remote control, GPS, and 4G Internet access. Therefore, it is impossible to intuitively see whether the external antenna is correctly connected to the circuit. [0003] A dedicated antenna detection circuit is generally provided in a wireless device, but this type of circuit can only detect two states: a high level state and a low level state. Correspondingly, the high level state indicates that the external antenna is not correctly installed at the antenna position, that is, the connection be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/52G01R31/54G01R31/68
Inventor 苏英菲
Owner NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
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