A high-speed data recording device and method for train chassis based on blvds bus

Abstract

The present invention provides a high-speed data recording device for train chassis based on BLVDS bus. The device includes a bus data processing module connected to a plurality of single boards in the train chassis through the BLVDS bus. Status data processing, a network interface for acquiring train control data and transmitting data to the client, an offline download module for users to download data offline, and one end connected to the TCMS system through the network interface, and the other end through the AXI bus and bus data processing The data recording module connected to the module stores the train control data and the processed chassis status data. The device is used to transmit the data of the single board of the chassis at high speed based on the BLVDS bus, which overcomes the problems of insufficient real-time performance and transmission rate in the prior art. High-speed storage and controllability greatly improve the big data of the status of each component in operation.

Description

technical field [0001] The invention relates to the technical field of traffic data processing, in particular to a BLVDS bus-based high-speed data recording device and method for a train chassis. Background technique [0002] At present, the intelligent diagnosis and operation and maintenance of trains in the field of rail transportation are relatively low, and the real-time status monitoring data of each sub-component of the train is small. The chassis generally uses CAN, RS485 and other backplane buses, and only a small amount of key information can be stored inside the chassis. And fault information, running status data are sent to and stored by the central control units of the two head cars through the TCMS network. Due to the large amount of data in the vehicle, the central control unit generally stores digital and analog data at a frequency of 200ms in order to take into account long-term storage, and lacks high-speed storage of state data. With the gradual expansion ...

AI Technical Summary

Problems solved by technology

At present, high-speed trains are committed to using intelligent technologies such as the PHM system (failure prediction and health management) to monitor the status of each equipment in real time and predict the occurrence of potential failures, so as to ensure the safe and reliable operation of the train. Based on this, each control of the train system The subsystems are also facing higher requirements, which require multiple state monitoring functions within each subsystem, as well as the ability to collect, transmit and record data at high speed. The traditional train data recording method cannot meet the actual needs of the application.

[0003] The data management technology in the prior art in the field mainly contains following two kinds, the one, adopt CAN bus line to obtain the data in the braking system and store; The first solution can only reach a maximum communication rate of 1Mbps, which cannot meet the real-time and rapidity requirements of large-capacity data transmission. At the same time, the data storage efficiency is poor, and the controllability of data management is insufficient.

Using the second solution above, the data storage efficiency is poor, and the data cannot be managed systematically during the storage process.

Images