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A method and vehicle-mounted device for judging the availability of a data receiving and sending channel of a board

A technology of data sending and receiving channels and boards, used in electrical digital data processing, digital computer parts, instruments, etc.

Active Publication Date: 2021-03-23
BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method and a vehicle-mounted device for judging the availability of board data sending and receiving channels, and solves the problem of detecting whether the vehicle-mounted positioning equipment operates reliably

Method used

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  • A method and vehicle-mounted device for judging the availability of a data receiving and sending channel of a board
  • A method and vehicle-mounted device for judging the availability of a data receiving and sending channel of a board
  • A method and vehicle-mounted device for judging the availability of a data receiving and sending channel of a board

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Embodiment Construction

[0057] An embodiment of the present invention provides a method for judging the availability of a board data sending and receiving channel, wherein:

[0058] (1) By judging that the board data sending and receiving channel is available, the Beidou positioning, time and other data and vehicle information can be interacted.

[0059] S1, such as figure 1 As shown, initialize the serial port, set the baud rate of the serial port, open the serial port, if the serial port fails to open, it will automatically restart the serial port three times; set the timer to start for 20 seconds to detect the Beidou serial port thread, poll the serial port for interruption, judge whether there is data, and cache if there is data Data, by looking for "$GNGGA" and "$GNRMC" characters to judge whether the Beidou data is available, if the detection thread does not receive the serial port data within 20 seconds, it is judged that Beidou is not available, and the light is displayed at the same time, th...

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Abstract

The invention provides a method for judging availability of data transmitting and receiving channels of integrated circuit boards and a vehicle-mounted device. The method for judging availability of the data transmitting and receiving channels of the integrated circuit boards comprises steps as follows: detecting whether the data transmitting and receiving channels of the integrated circuit boards are in an available state; performing Beidou positioning and time information and / or vehicle-mounted information interaction between a master control integrated circuit board and a communication integrated circuit board; uploading a file containing the vehicle-mounted information and the positioning information, and / or downloading a vehicle-mounted configuration information file. The method for judging availability of the data transmitting and receiving channels of the integrated circuit boards and the vehicle-mounted device can detect availability of a serial port, Socket, 3G and WLAN, so that Beidou positioning and time information and the vehicle-mounted information are stored in and received by a protection recorder and a ground receiving system. States of communication data transmitting and receiving channels of the master control integrated circuit board, the communication integrated circuit board, a Beidou integrated circuit board and a protection recording integrated circuit board are judged and detected, communication states of the integrated circuit boards are conveniently and accurately displayed through lamps, and whether the vehicle-mounted device is accurately positioned and reliably operates is known in time.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and a vehicle-mounted device for judging the availability of board data sending and receiving channels. Background technique [0002] Whether the vehicle-mounted positioning device can perform accurate positioning and reliable operation, the premise is that the data channel of each board card is available. If the data channel of the board card is not available, then the entire vehicle-mounted positioning device will lose its positioning function and bring errors to users. instruct. Contents of the invention [0003] The invention provides a method and a vehicle-mounted device for judging the availability of board data sending and receiving channels, and solves the problem of detecting whether the vehicle-mounted positioning equipment operates reliably. [0004] In order to achieve the above object, the present invention is specifically realized through the follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F15/173G06F13/40H04L29/06
CPCG06F13/4068G06F15/17306H04L69/162H04L69/164
Inventor 田秀臣熊道权王海燕
Owner BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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