MVB (Multifunction Vehicle Bus)/HDLC (High-level Data Link Control) gateway device

A gateway and CPU module technology, which is applied in the direction of bus network, network connection, data exchange through path configuration, etc., can solve problems such as hindering the communication and control and conversion difficulties between HDLC network vehicle equipment and MVB bus vehicle equipment

Inactive Publication Date: 2012-07-04
WUHAN ZHENGYUAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is very important to exchange data between the HDLC communication network using the RS485 bus and the MVB bus network. However, in the prior art, there are difficulties in the conversion betwe...

Method used

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  • MVB (Multifunction Vehicle Bus)/HDLC (High-level Data Link Control) gateway device
  • MVB (Multifunction Vehicle Bus)/HDLC (High-level Data Link Control) gateway device
  • MVB (Multifunction Vehicle Bus)/HDLC (High-level Data Link Control) gateway device

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 The shown MVB / HDLC gateway device includes an MVB / HDLC conversion board and a gateway power supply module 4 that provides a power supply voltage for the MVB / HDLC conversion board. The MVB / HDLC conversion board includes an FPGA module 1 and a CPU module 2, and the FPGA module 1 is set There are HDLC link control processing circuit 1.1 and MVB link control processing circuit 1.2, the CPU module is provided with memory, Ethernet communication interface circuit 2.1, USB interface circuit 2.2, RS485 interface circuit 2.3, RS232 interface circuit 2.4, the first CAN bus Interface circuit 2.5 and the second CAN bus interface circuit 2.6,

[0016] The FPGA module 1 is provided with a parallel bus interface 1.3, and the parallel bus interface 1.3 is connected with a parallel bus 3. The FPGA module 1 and the CPU module 2 are conn...

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Abstract

The invention relates to a control system for a railway locomotive network, belongs to an HDLC (High-level Data Link Control) communication network technology, and particularly relates to an MVB (Multifunction Vehicle Bus)/HDLC gateway device. The MVB/HDLC gateway device comprises an MVB/HDLC converting board and a gateway power supply module for supplying voltage for the MVB/HDLC converting board. The MVB/HDLC converting board comprises an FPGA (Field Programmable Gate Array) module and a CPU (Central Processing Unit) module. An HDLC link control processing circuit and an MVB link control processing circuit are arranged in the FPGA module. A memory, an Ethernet communication interface circuit, a USB (Universal Serial Bus) interface circuit, an RS485 port circuit, an RS232 interface circuit, a first CAN (Controller Area Network) bus interface circuit and a second CAN bus interface circuit are arranged in the CPU module. The FPGA module and the CPU module are connected with each other through a parallel bus. According to the MVB/HDLC gateway device disclosed by the invention, functions of HDLC communication, Ethernet communication, various buses and MVB mutual communication are realized. The MVB/HDLC gateway device has the advantages of small volume, strong practical applicability and the like.

Description

technical field [0001] The invention relates to a railway locomotive network control system, belongs to HDLC communication network technology, and specifically relates to an MVB / HDLC gateway device. Background technique [0002] At present, the MVB bus based on the IEC61375 "Train Communication Network" standard and the HDLC communication network technology based on the RS485 bus are widely used in the railway locomotive network control system for data transmission of various on-board equipment. It is very important to exchange data between the HDLC communication network using the RS485 bus and the MVB bus network. However, in the prior art, there are difficulties in the conversion between the two protocols of the MVB / HDLC gateway device, which hinders the HDLC network vehicle equipment and the MVB bus vehicle equipment. The development of communication and control technology. Contents of the invention [0003] The object of the present invention is to solve the above-men...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L12/40
Inventor 王旖雯王婷
Owner WUHAN ZHENGYUAN ELECTRIC
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