Design and application of rail transit based on 7308T

Application background

The term IPC may not be familiar to many people, but did you know that it is closely related to our lives? When you go out and take a car, when you are shopping in a mall, or when you are playing in a park, you will directly or indirectly contact the industrial computer.

The application case introduced to you this time is a successful case of Kontron IPC in rail transit. A large number of people take the light rail or subway every day in the city. If the interval between shuttle buses is too long, it will cause congestion at the station and long waiting time for passengers, affecting people's work and life. This point is particularly prominent in peak hours and holidays. To shorten the departure time interval, more strict and precise control of the train is required.

This kind of control cannot be done by humans alone. Must use a computer. The working environment of computers in rail transit is very harsh. Whether it is temperature, humidity and vibration resistance, or anti-electromagnetic interference, ordinary PCs can not meet the requirements. At this time, the industrial computer naturally became the first choice of people. Kontron 7308T adopts industry standard design, which can meet the harsh environmental requirements, and has won more and more customers' recognition in the Chinese market.

System introduction In a rail transit site in Shanghai, Kontron 7308T is used as a host for the ATS (Automatic Train Monitoring) system. Each 7308T is connected with three to four serial port cards. Through the serial port, the current signal and voltage signal of the scene are collected to the host, and the host is connected to the relay. The host computer control program controls the relay's clutch according to the collected signal. In this way, chopping speed regulation is realized. System structure diagram:



System characteristics Kontron 7308T is a 4U high, 19 "wide industrial computer platform that can be racked up. It adopts industry standard design and can meet various harsh working environments. It has been specially designed at each connection and its mechanical strength , Anti-seismic performance and temperature / humidity adaptability are in line with the standards of advanced countries in Europe and America. Especially in anti-electromagnetic interference, it has excellent performance and is suitable for applications in areas with serious electromagnetic interference such as rail transit. The industrial-grade motherboard of this system adopts high-performance CPU Compared with industrial-grade memory, it can not only satisfy the system performance, but also provide a good guarantee for the stability of the system. At the same time, the 7308T has six PCI expansion slots, which can still have enough expansion space under the premise of satisfying the operation. In the application of rail transit, although three or four serial I / O cards have been externally connected, two or three extensions have been retained. In future applications, the entire system can be expanded and upgraded without replacing the entire system.