Research And Implementation Of Data Transmission System For Train Overhaul Equipment

High-speed rail as the most outstanding representative of China’s industry,with large amounts of data,rich data types,high-speed rail maintenance data for the consumption of big data increasing demand,and train maintenance data transmission system as a connection between the underlying train data source and big data applications Connecting parts,it is also more and more important,In the face of all kinds of huge amounts of data,it is bound to usher in more challenges.At present,there are many researches on the general industrial IoT data acquisition and transmission system.However,there are few researches on the system of train maintenance data transmission in the railway industry.The problems that the train maintenance data transmission system faces are:Railway industry data island problem,Poor network services,compatibility issues due to differences in data types,performance issues due to high concurrency data,and transmission device management issues and so on.The thesis address the above problems,put forward some solutions as follows,mainly divided into three parts:Data transmission module,It mainly describes the hardware design of the data transmission client and the corresponding data transmission software implementation,Using WebSocket protocol as the data transmission framework to effectively solve the problems of the traditional communication architecture defects,such as high-concurrent client connections are limited,data transfer slowly;Data transmission mechanism management module,It mainly puts forward solutions on the specific transmission problem that the system faces,such as using JSON packes to solve the data packet compatibility,using retransmission mechanism to achieve non-repeatable data transmission;Using message queuing mechanism,Rest interface,data subcontracting technology and data caching technology to cope with the case of high-speed train maintenance data;Network and transmission equipment monitoring and management module,This module mainly supervises the network and equipment during transmission,Such as network anomaly management,including C/S automatic reconnect technology,automatic restart technology,The equipment supervisor is responsible for the health management of the equipment,such as the management of the equipment online and offline,the software abnormality management of the equipment and the supervision of the working condition of the equipment.In addition,it provides the reverse configuration management of the equipment and can provide customized command service for the designated equipment.Dynamic monitoring and management of transmission equipment.The data transmission system of train maintenance equipment proposed in the paper can transmit the national train maintenance data to the big data storage terminal in a stable and efficient manner and can also play an effective regulatory role on the network and equipment.The essay begins with the analysis of the characteristics of train maintenance equipment data transmission,based on which the train maintenance data transmission system design requirements are proposed.Secondly,the design and division of each functional module in the system are clarified.The train maintenance data transmission system is divided into data transmission module,data transmission mechanism management module,network and transmission equipment supervision module.Thirdly,based on the design concept of each module,the specific functions of each module are respectively realized.Then,in different environments(such as laboratory and train maintenance section),the system’s functional and performance tests were conducted to verify the availability and effectiveness of the system.Finally,on the basis of summing up the work of the full text,it points out the deficiency of the dissertation and looks forward to the future research direction.