The application of industrial computer in the interlocking system, during the rapid development of urban rail transit in China, YONGS Technology, as a global service provider in the field of web services, provides automatic ticketing systems, power monitoring systems, Tourist information system, situation monitoring system, light signal system, fire alarm system and other systems provide a variety of management plans. YONGS's strong and reliable performance in the long-term operation of the six main lines, Daqin heavy-duty, Qinghai-Tibet Railway, etc., has won the recognition of a large number of professional users, which also injects more grounded belief and enthusiasm for YONGS's connection to the specialized rail industry. 1. System overview Due to the large number of customs in my country and the vast area, the intercity high-speed railway and rail transit in the city are more and more people's travel traffic. This is a huge system composed of many sub-systems, such as: the beacon system, Active fare collection system (AFC), fire alarm system (FAS), situation monitoring system BAS, power monitoring system (P-SCADA), tourist information guidance system PIS, etc. Among them, the signal system is the most important system, and the signal system is a distributed system, including the scheduling subsystem, the electricity protection subsystem, the communication website subsystem and the station subsystem. The key system of the light signal system is the interlocking system. The reliability, safety, stability, and timeliness of the system determine the safety and reliability of train operation. The so-called interlocking refers to the mutual restriction and interdependence among the switch, the approach and the light signal. The building that completes the interlocking is called the interlocking building. Hierarchical diagram of the two interlocking systems (1) The first layer is the man-machine dialogue layer. In the future, the operation input from the keyboard, mouse, etc., will be delivered to the interlocking computer through the serial port, and the station and field information will be displayed on the graphic display. In the case of a large station area that makes the interlocking computer cumbersome or requires multi-terminal operation, the control command collector can be configured to identify the validity of the control command input and convert it into an agreed pattern to transmit to the interlocking computer. (2) The second layer is the interlocking operation layer. The interlocking microcomputer is the core part of the system, and it is burdensome to identify the operation input, the treatment and analysis of the interlocking light signal, the logic operation, the control of the command production, the obstacle diagnosis and other tasks. It is reliable. Safety and security have a great impact on the overall safety performance of the system. Two interlocking microcomputers are configured in the system, one of which is a cold standby machine, which can be manually switched. (3) The third layer of review driver layer The review driver layer is burdened with collecting and revealing information and converting the operation command issued by the interlocking computer into an obstacle—the task of safely controlling the light signal, and the operation command generated by the spring interlocking computer is reviewed and checked. shielding effect. (4) The fourth layer is the connection circuit layer. One of the tasks of the connection circuit is to complete the safety logic conversion between the displayed information of the on-site monitoring building and the driving light signal output by the PLC, so that both the input and output information of the PLC have an obstacle-safety function. The second task is to monitor the measurement and control process of the building with a dedicated circuit model, which includes the display information collection mechanism and the building driving process. (5) The fifth layer is the monitoring tool layer. The monitoring building refers to the on-site building of the interlocking system, that is, the switch, the light signal machine and the track circuit. 3. System requirements 1. The requirements for stability and reliability are extremely high. Because the interlock is the instruction system for controlling the driving, it takes 10 years for the two machines to operate without any synchronism hindrance, and there should be no faults, and life is at stake. 2. Specification requirements: 2 CAN ports are required for communication, 8 485 ports for communication, 2 arcnet network cards, sound card, dual-band performance, and 1 network port.
IPC is a leading manufacturer of global electronics services, a Taiwanese enterprise. Since its establishment in 1983, YONGS has been committed to innovation in the field of industrial computers and automation, developing and supplying high-quality/high-performance electronic products and services. After 20 years of development, YONGS has accumulated a wealth of experience in the field of electronic services, and has a strong industry development orientation, providing global users with a full set of hardware/software/customer service/global background support and e-commerce infrastructure solutions. plan. YONGS will continue to help system integrators to complete their own management plan and service appreciation. Provide complete solutions for manufacturers in automation, transportation, energy, medical, logistics and other fields.
