Data transmission processing system, gateway and data transmission processing method

Abstract

The invention provides a data transmission processing system, a gateway and a data transmission processing method. The system comprises a protocol data configuration unit which is used for storing associated protocol data of first bus data and second bus data; an application layer unit which is used for acquiring the protocol data of the protocol data configuration unit, acquiring the first bus data and the second bus data at the same time, analyzing the data in combination with the protocol data, and sending the analyzed data; a driving layer unit which is in data communication with the application layer unit, the first bus and the second bus and is suitable for starting the first thread so as to obtain data from the first bus and transmit the analyzed data to the second bus; and a secondthread which is used for acquiring data from the second bus and transmitting the analyzed data to the first bus. The data processing method comprises the following steps: carrying out a first bus data reading operation and a second bus data writing operation by adopting a first thread; and carrying out second bus data reading operation and first bus data writing operation by adopting a second thread. The system and the method are high in maintainability, and the software development period can be shortened.

Description

Technical field [0001] The invention belongs to the field of data communication technology, and specifically relates to a data transmission processing system and a data transmission processing method. Background technique [0002] The train communication network TCN (Train Communication Network) defines a two-level hierarchical structure, which corresponds to the wire train bus WTB (Wire Train Bus) and the multifunction vehicle bus MVB (Multifunction Vehicle Bus). The two-level buses pass through the EMU The gateway performs protocol conversion. The EMU gateway adopts two types of buses, MVB and WTB, to implement vehicle network control. In the communication of the entire train network control system, the gateway is responsible for the communication protocol data conversion and network routing functions of MVB bus and WTB bus. It has MVB and WTB buses. Management capability and message data communication capability. When the train reconnection or unmarshalling operation of the E...

AI Technical Summary

Problems solved by technology

[0008] 1. When the gateway communication protocol is upgraded, the gateway application program needs to be upgraded, which reduces the maintainability of the gateway program, and is prone to program protocol configuration errors, prolonging the software development cycle; 2. The gateway polls a large number of MVB ports at the same time, which will Make the CPU board's access to the MVB board occupy too many system resources, affecting other threads or board access; 3. The existing data communication on the MVB side of the gateway basically uses the check bit to realize segmental verification of a port data , when the MVB bus communication line is disturbed, the data bit is disturbed, but the parity bit is not disturbed, thus destroying the MVB data integrity, which will lead to application judgment error, thereby affecting the logic control; the existing gateway WTB side Data communication is similar to MVB communication verification. When the WTB bus is disturbed, if only the data bit is disturbed but the parity bit is not disturbed, thus destroying the integrity of the WTB data, the application will think that the bus data is available. , thus affecting the logic control

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