Alternating-current actuating system management and communication controller

Abstract

The invention discloses a management and communication controller of an AC drive system, comprising a microprocessor, a memory and a power circuit and a reset circuit, wherein the memory is connected with the microprocessor, the microprocessor is provided with an ethernet interface, an RS485bus interface, a universal synchronous / asynchronous serial transceiver interface and an external bus extended interface; the controller further comprises a programmable logic device which is connected with the microprocessor and is used for controlling address decoding and data flow direction of an analog-digital conversion unit, a digital-analog conversion unit and a multifunction vehicle bus interface unit which are connected to the programmable logic device; the analog-digital conversion unit converts a received analog signal into a digital signal and sends to the microprocessor, the microprocessor transfers a control instruction to the digital-analog conversion unit which converts the control instruction into an analog signal and transfers to a the control device of a train; the multifunction vehicle bus interface is used for communicating with a communication network of the train. The controller has the advantages of compatibility with the prior products, quick processing speed and rich resources of communication interfaces.

Description

technical field [0001] The invention relates to the field of train control, in particular to an AC drive system management and communication controller. Background technique [0002] Train Communication Network (TCN, Train Communication Network) is an IEC international standard for train data communication that integrates the internal measurement and control tasks and information processing tasks of the entire train. Its position in the train control system is equivalent to that of the CAN bus in automotive electronics. status. Multifunction Vehicle Bus (MVB, Multifunction Vehicle Bus) is a bus of TCN, and it is a standard communication medium for transmitting and exchanging data between devices on a train. The devices connected to the bus exchange information through the MVB bus to form a complete communication network. [0003] The AC transmission system management and communication controller combines the management function and the communication function into one to fo...

AI Technical Summary

Problems solved by technology

However, the SMC has limited functions, its own microprocessor level is relatively low, and the main frequency processing speed is slow, so it is difficult to meet the operation and maintenance of a large number of complex programs; in addition, the communication interface resources are limited, and there is no RS485, Ethernet, and universal serial bus. (USB, Universal Serial Bus) and other interfaces; its external communication interface is only a serial port for debugging, which is only used to monitor the voltage and current variables during program operation, the status of related contactors, and the startup status of the converter, etc.

It cannot meet the growing communication needs and realize data transmission and sharing

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