IO (Input/Output) driving module compatible with network and CAN communication

Abstract

Embodiments of the invention discloses an IO driving module compatible with a network and a CAN communication, comprising a single-chip microcomputer with a CAN communication interface, a network chip, a network port connected with the network chip, and a program programming interface. The program programming interface is connected with the single-chip microcomputer, and programs a logic program to the single-chip microcomputer. The CAN communication interface is connected to the output of the real interlock through the external CAN line to realize data interaction with the interlock. The single-chip microcomputer is connected with the network chip, and is connected to an emulation IO communication network through an external network cable of the network port connected to the network chipto realize data interaction with the emulation IO. According to the IO driving module compatible with the network and the CAN communication, the space resource, the cost, and the environment setup anddebugging time are greatly saved, the used single-chip microcomputer is not provided with the operating system, the real-time performance is high. The requirement of high-speed driving of the real interlocking can be met, so that the problem of abnormal or downtime of the interlocking operation caused by the number of drops and the number of changes is prevented.

Description

technical field [0001] The embodiment of the present invention relates to the field of rail transit signal technology, and in particular to an IO driving module compatible with network and CAN communication. Background technique [0002] Computer Interlocking (CI for short) is the key equipment of CBTC (communication-based train control) system. The CI subsystem realizes the management of trackside equipment such as turnouts, signal machines, track sections, screen doors, emergency stop buttons, etc. on the line through the driving of relevant relays, and realizes the control of the approach. [0003] In the indoor test platform, the real CI equipment FSIO collects the relay status of the simulated trackside equipment from the simulated IO (input and output) through the relay combination rack, and at the same time sends the relay drive command to the corresponding simulated trackside equipment through the relay combination rack. The relay combination frame is composed of mu...

AI Technical Summary

Problems solved by technology

[0005] However, using the real relay combination rack equipment, there are too many hardware devices, and the construction and debugging process of the relay combination rack is complicated, which will take up most of the time and energy of the debugger. On hardware debugging, the relay combination rack usually occupies two cabinets. It consumes a lot of control resources, the construction cost of the relay combination frame is high, and it consumes a lot of economic resources

However, using CAN card communication, interlocking realizes the relay driving and mining method of the simulation environment through two CAN cards and two CAN lines, it is necessary to develop CAN communication software based on windows, and the interlocking driving and mining cycle is fast, and the CAN software based on windows It is difficult to meet the high-speed data interaction, and it is easy to lose data or delay accumulation, resulting in abnormal operation of interlocking equipment or interlocking downtime, seriously affecting the stability of the test environment and affecting the normal test work

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