Based on multi-mode and multi-frequency oem board card lost lock and recapture test method

Abstract

The invention provides a lock-losing recapturing test method based on a multi-mode multi-band OEM board card. The lock-losing recapturing test method comprises the steps of: step S1, setting up a test environment; step S2, creating an operating mode; step S3, setting parameters of a testing mainboard; step S4, running a testing program, comparing coordinate values of output GPGGA with coordinates of a central point, and stopping the recording of time when an absolute value of a planar coordinate difference value is less than 15 m; step S5, generating a test report; step S6, and distinguishing between an open environment and an interference environment, continuously and repeatedly performing the steps from S1 to S6, summarizing and exporting the test report, and counting time for lock-losing recapture in the environments. According to the test scheme provided by the invention, the configuration of all the parameters can be completed just through one testing program by adopting a board card testing tool, the test time of each round and a total number of test times are set, a main interface is clicked to start, and the testing report is exported and can be used right after the end of the tests, thus the method is convenient and rapid.

Description

technical field [0001] The invention relates to the field of surveying and mapping, in particular to a multi-mode and multi-frequency OEM board card loss and recapture test method. Background technique [0002] With the development of GNSS globalization, China's Beidou satellite navigation system is becoming more and more mature, and more and more Beidou terminal equipment is put into use. The company has introduced various types of OEM navigation and positioning boards to support multi-mode and multi-frequency. It is necessary to test the satellite systems Lost lock reacquisition time. [0003] The original test plan: each board needs different software and other tools to configure different satellite systems, output positioning data GPGGA, provide satellite signals from the GPS simulator through stopwatch statistics, and compare the absolute value of the plane error between GPGGA and known points Stop timing when it is less than 15 meters (the coordinates here need to com...

AI Technical Summary

Problems solved by technology

Time-consuming and labor-intensive, it takes up a lot of personal time in the early stage, and the amount of data processing in the later stage is huge and the construction period is long

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