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RS422 bus monitoring system

A RS422, bus monitoring technology, used in instruments, electrical digital data processing, detection of faulty computer hardware, etc., can solve problems such as no signal recording function and inability to track the test process.

Inactive Publication Date: 2018-06-01
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the serial port debugging software can only send and receive bus transmission data, and is helpless for hardware debugging. It needs other hardware equipment such as oscilloscope to assist, but it does not have the signal recording function, and cannot effectively track the test process.

Method used

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  • RS422 bus monitoring system
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Embodiment Construction

[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention relates to an RS422 bus monitoring system. The system comprises an RS422 data collection module used for collecting voltage data on an RS422 bus and sending the voltage data to a data processing module through an RS422 communication line, a data processing module comprising a UART function module used for converting serial voltage data into parallel data and an A / D conversion moduleused for performing sampling, quantization and coding on the voltage data on the RS422 communication line, a USB controller used for sending the parallel data received from the UART function module and waveform coded data received from the A / D conversion module to a display module, and the display module used for displaying the data.

Description

technical field [0001] The invention belongs to the field of aviation bus test design, in particular to an RS422 bus monitoring system. Background technique [0002] The RS422 bus is an important part of the aircraft bus, and it is also widely used in ground inspection books and ground control stations. The use of these RS422 buses in the system is mostly applied to newly developed equipment. In the early stage of debugging, there are usually hardware design defects or faults, which cannot work stably, and need to be debugged and troubleshooted. [0003] At present, the debugging work of the serial port bus is usually carried out in the serial port debugging software. However, the serial port debugging software can only send and receive data transmitted by the bus, and cannot do anything about hardware debugging. It needs other hardware equipment such as oscilloscopes to assist, but it does not have the signal recording function and cannot effectively track the test process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42G06F11/22
CPCG06F11/221G06F13/4282G06F2213/0002
Inventor 王宏利
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA