Compact-type expanded input-output (IO) device

Abstract

The invention relates to a compact-type expanded input-output (IO) device, and the expanded IO device comprises a shell, a circuit board which is arranged inside the shell and a power supply module, wherein the circuit board consists of a soleplate with a processor and a small plate with a communication interface, and the soleplate is connected with the small plate through a double-row connector. The compact-type expanded IO device has abundant hardware resources, diversity interfaces and wide application range; by adopting a compact-type structure, the size is small; the internal circuit adopts the modularized design, the circuit board consists of the soleplate with the processor and the small plate with the communication interface, the soleplate comprises a high-speed field programmable gate way (FPGA) microprocessor chip, the multi-threading simultaneous control can be realized, so that the contact-type expanded IO device can be used as a main device; and meanwhile, the communication interface on the small plate can be configured as a multifunction vehicle bus (MVB) interface and a high-level data link control (HDLC) bus interface, so that the compact-type expanded IO device can be connected with a main device through a network hard wire to be used as an auxiliary device, and the contact-type compacted IO device can be managed and controlled by the main device through a network protocol.

Description

technical field [0001] The present invention relates to an expansion device used for the control system of high-speed EMU trains and urban rail trains, in particular, it relates to an expansion IO device for managing digital input and output and analog input and output. Background technique [0002] At present, the network system of the monorail train is only responsible for receiving the information of each subsystem. Therefore, the vehicle control mode cannot send control commands through the network, but can only be controlled by hard wires. These commands and the analog and digital parameters of the traction system of the monorail train The number of input and output quantities has far exceeded the hardware resources of the traction controller itself, so it is necessary to add devices in the traction system to expand the IO (input and output) to meet the control requirements. [0003] A scalable module is adopted in the CRH5 EMU train network system to solve the above pr...

AI Technical Summary

Problems solved by technology

[0002] At present, the network system of the monorail train is only responsible for receiving the information of each subsystem. Therefore, the vehicle control mode cannot send control commands through the network, but can only be controlled by hard wires. These commands and the analog and digital parameters of the traction system of the monorail train The number of input and output quantities has far exceeded the hardware resources of the traction controller itself, so it is necessary to add devices in the traction system to expand the IO (input and output) to meet the control requirements

[0003] A scalable module is adopted in the CRH5 EMU train network system to solve the above problems, but it also has the following disadvantages in popularization and application: (1) The module must be used together with the main controller, which is not conducive to long-distance control; 2) The module can only be used as a slave device, and cannot manage input and output; (3) The interface of the module can only be CAN Bus; (4) The module adopts a plastic shell, which has poor electromagnetic compatibility

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