A serial port data receiving method and an abnormity monitoring and positioning method

Abstract

The invention discloses a serial port data receiving method and a verification positioning method. The data receiving method adopts a transmission time interval of two byte data on a bus to judge dataframe receiving, and comprises the following steps of starting timing when data is received; And when the timing reaches the preset transmission duration of one data frame, stopping receiving the data, and taking the received data as one data frame. According to the method, an application layer protocol format does not need to be preset, the data transmission process is greatly simplified, and the data processing pressure of the communication module is reduced. Furthermore, according to the method provided by the invention, the communication abnormity can be rapidly monitored, and the abnormal data source can be accurately positioned, so that the communication reason can be rapidly searched when the serial port communication fault occurs, and the maintenance efficiency is improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a serial port data receiving method and an abnormality monitoring and positioning method. Background technique [0002] In the prior art field, serial port communication is a very common communication method, which is widely used in human production and life. [0003] However, there are many problems in the serial port communication mode in the prior art. Taking the application scenario of a diesel locomotive as an example, due to the complex working conditions of the diesel locomotive, various vibrations and electromagnetic interference have a great impact on the communication quality of the bus, so communication errors sometimes occur during serial communication. However, in the environment of the prior art, when a communication failure occurs, the microcomputer control system can only simply judge the communication failure, but cannot locate the source of the failure in t...

AI Technical Summary

Problems solved by technology

Taking the application scenario of a diesel locomotive as an example, due to the complex working conditions of the diesel locomotive, various vibrations and electromagnetic interference have a great impact on the communication quality of the bus, so communication errors sometimes occur during serial communication

However, in the environment of the prior art, when a communication failure occurs, the microcomputer control system can only simply judge the communication failure, and cannot locate the source of the failure in time, and cannot immediately and effectively deal with the communication failure

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