Data transmission method and device, electronic equipment and machine readable storage medium

Abstract

The embodiment of the invention provides a data transmission method and device, electronic equipment and a machine readable storage medium, a receiving end receives a transmission signal sent by a sending end, detects a start bit, each data bit and a stop bit of the transmission signal according to the level state of each bit of the transmission signal, counts the data bit duration of each data bit, and sends the data bit duration to the sending end; the numerical value corresponding to each data bit is recognized based on the corresponding relationship between the preset data bit duration and the numerical value, and the data consisting of the numerical values corresponding to each data bit is determined to be received based on the numerical value corresponding to each data bit between the start bit and the stop bit. The level states of every two adjacent bits of the transmission signal are different, the data bits of the transmission signal are detected based on the level states, the numerical values of the data bits are recognized based on the preset corresponding relation between the data bit duration and the numerical values, it can be guaranteed that the data bits of the transmission signal are accurately detected, and the data transmission efficiency is improved. The specific numerical value of each data bit can be accurately recognized, and a receiving end can receive accurate data.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a data transmission method, device, electronic equipment and machine-readable storage medium. Background technique [0002] In the current communication system, point-to-point communication protocols such as UART (Universal Asynchronous Receiver / Transmitter) and 1WIRE (single bus) are usually used to realize data communication between devices and between modules. [0003] When using the above-mentioned communication protocol for data communication, the sending end will send a transmission signal to the receiving end, the transmission signal includes start bit, data bit and stop bit, and the level status of the data bit indicates the specific value of the data bit, For example, if a data bit is at a high level, it means that the value of the data bit is 1, and if a data bit is at a low level, it means that the value of this data bit is 0. After receiving the tra...

AI Technical Summary

Problems solved by technology

[0004] However, in actual situations, the sampling frequency at which the receiving end samples the transmission signal is often irregular, and the data transmitted by the sending end will continuously appear 1 or 0. The irregular sampling frequency makes it easy to Two consecutive identical values ​​are identified as the value of one data bit, resulting in inaccurate data received by the receiving end

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