Automobile test field differential positioning base station signal inspection system

A technology for differential positioning of base stations and vehicle test sites, applied in satellite radio beacon positioning systems, radio wave measurement systems, transmission systems, etc. and other issues to achieve the effect of ensuring no crosstalk and ensuring reliability

Pending Publication Date: 2021-04-30
JIANGHAN UNIVERSITY
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Problems solved by technology

The data communication protocol adopted by the differential positioning signal is the global unified standard GNSS positioning protocol (NMEA 0183). When multiple units conduct experiments and tests at the same time, differential positioning signal crosstalk often occurs, and the target positioning mobile station cannot distinguish whether it is its own unit. Differential positioning base station signal, at this time will lead to a larger differential positioning calculation error, seriously affecting the test results

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  • Automobile test field differential positioning base station signal inspection system
  • Automobile test field differential positioning base station signal inspection system

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with specific embodiments and examples, and the advantages and various effects of the present invention will be presented more clearly. Those skilled in the art should understand that these specific implementations and examples are used to illustrate the present invention, not to limit the present invention.

[0024] Throughout the specification, unless otherwise specified, terms used herein should be understood as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, this specification shall take precedence.

[0025] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0026] Such...

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Abstract

An automobile test field differential positioning base station signal inspection system comprises: a signal detection analysis module used for scanning a differential positioning base station signal frequency band and analyzing the differential positioning base station signal frequency band; a mode conversion module which is used for converting a signal mode between the frequency band scanning module and the control module; a signal conversion module which is connected with the frequency band scanning module; a control module which is used for sending a control instruction to the frequency band scanning module, wherein the control module is connected with the signal conversion module; a display module which is used for displaying an analysis result of the signal detection analysis module, wherein the display module is connected with the control module. According to the application, all channels for 433MHz communication in the current test range can be obtained according to the scanning result, and the differential positioning base station data transfer radio station can be set in an idle channel according to the prompt; and according to the invention, the currently used channel can be effectively avoided, thereby ensuring that the differential positioning signals are not disturbed, and further ensuring the reliability of a test item.

Description

technical field [0001] The invention belongs to the technical field of signals of differential positioning base stations of automobile test fields, and in particular relates to a signal inspection system of differential positioning base stations of automobile test fields. Background technique [0002] At present, automobile testing units such as automobile testing and certification centers (testing grounds) are mainly based on differential positioning technology for automatic emergency braking (AEB) and various road condition tests of automobiles. Specifically, a positioning base station is established locally using differential positioning technology. The target object (the test object that needs to be calibrated for position information, generally a test device or a test vehicle) simultaneously receives the positioning signal of the satellite and the positioning signal of the differential positioning base station, and passes a certain The solution algorithm realizes the hi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/382H04W16/14G01S19/23
CPCG01S19/23H04W16/14H04B17/382
Inventor 段金杰詹志明
Owner JIANGHAN UNIVERSITY
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