Wireless transparent transmission module capable of implementing 128-bit error correction algorithm

Abstract

The invention discloses a wireless transparent transmission module capable of implementing a 128-bit error correction algorithm. The wireless transparent transmission module comprises a single chip computer, a radio frequency module, an antenna and a power supply module, wherein the single chip computer and the radio frequency module are mutually connected, the antenna is connected with the radio frequency module, the power supply module is used for supplying power to the single chip computer and the radio frequency module, a receiving control module and a transmitting control module are integrated in the single chip computer and are based on the 128-bit error correction algorithm, the receiving control module and the transmitting control module perform data interaction with the outside through a serial port of the single chip computer, and an SPI interface of the single chip computer performs data interaction with the radio frequency module. The wireless transparent transmission module capable of implementing the 128-bit error correction algorithm smartly utilizes a coding rule to perform RS coding through (15, 11) RS codes, thereby greatly improving coding efficiency and reducing communication delay time; furthermore, in an extremely miniaturized chip unit, the 128-bit high-order digit error correction capability are implemented, the packet loss rate of wireless data transmission is reduced, and the stability of communication is improved.

Description

technical field [0001] The invention relates to the field of wireless transparent transmission of data, in particular to a wireless transparent transmission module for realizing an efficient error correction algorithm. Background technique [0002] The wireless transparent transmission module (referred to as the wireless transparent transmission module) refers to the transmission module that does not add any protocol (that is, transparent) on the wireless communication physical layer. For example, end A sends 3-byte data XYZ, then end B receives the corresponding 3-byte data XYZ, and what is received is what is sent. Since the communication interface of the wireless transparent transmission module is a serial port, it is generally used to replace the traditional limited serial port communication. It is easy to use and saves the trouble of wiring. Therefore, it is widely used in many fields such as wireless industrial control, smart home, wireless meter reading, and smart sen...

AI Technical Summary

Problems solved by technology

Its disadvantages are 1) it needs to add a layer of communication protocol on both sides of the communication, which increases the complexity of communication, and multiple retransmissions take up a lot of transmission time, reducing communication efficiency; 2) once an error occurs, even if it is only a bit error, all data needs to be resent, and this method is very inefficient in occasions with a lot of random interference; 3) For one-way transmission, such as broadcast transmission, this method is not available (multiple receivers return the resend command at the same time. cause a mid-air collision)

The disadvantage is that the transmission efficiency is very low. If the sender actively sends 5 times, the efficiency is η<1 / 5

The disadvantages are: 1) Manchester encoding uses rising and falling edges to represent binary data 1 or 0, compared with BCD code that uses high and low levels to represent binary 1 and 0, the size of the data is doubled, plus CRC check code, the transmission efficiency η<1 / 2; 2) It takes a long time to complete a CRC check, and on average, the error correction algorithm takes a long time, which reduces the real-time performance of transmission, and in low power applications, adding more current consumption

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