Title:
AUTOMOBILE, AND VEHICLE-MOUNTED MONITORING DEVICE AND VEHICLE SIGNAL DETECTION CIRCUIT THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/178842
Kind Code:
A1
Abstract:
An automobile, and a vehicle-mounted monitoring device thereof and a vehicle signal detection circuit thereof. The vehicle signal detection circuit comprises: a detection signal input module (110), a signal pre-processing module (120), a reference voltage generation module (130), a voltage comparison module (140), and a master control module (150). The signal pre-processing module (120) performs surge protection processing and voltage conversion processing on a received detection signal and then outputs a stable voltage to be compared to the voltage comparison module (140), thereby effectively preventing circuit damage caused by surge; the voltage comparison module (140) compares the voltage to be compared with a reference voltage to generate a comparison result, thereby implementing the wide voltage input and comparison of a multi-path signal; the master control module (150) acquires the comparison result, and analyzes the state of a vehicle according to the comparison result. The reference voltage is adjusted by using the master control module (150) according to requirements, so that the voltage comparison requirements of various different vehicles are satisfied, and the problems of complexity and high costs of an existing vehicle signal detection circuit are solved.
Inventors:
FAN ZHANGHUA (CN)
Application Number:
PCT/CN2018/080233
Publication Date:
September 26, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
STREAMAX TECH CO LTD (CN)
International Classes:
G01R31/00
Foreign References:
| CN101762777A | 2010-06-30 | |||
| CN203506715U | 2014-04-02 | |||
| CN203398780U | 2014-01-15 | |||
| CN203368728U | 2013-12-25 | |||
| JP2016134010A | 2016-07-25 | |||
| US20170245379A1 | 2017-08-24 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
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