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WTB-USB gateway based on ARM7 and working method thereof

A gateway and board technology, applied in the direction of bus network, network connection, data exchange network, etc., can solve the problem of inability to use directly, and achieve the effect of high reliability and novel design

Inactive Publication Date: 2011-01-05
CHINA CNR CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there is no WTB-USB gateway with independent intellectual property rights applied in the locomotive and rolling stock industry in China, and the existing gateway based on WTB bus cannot be used directly

Method used

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  • WTB-USB gateway based on ARM7 and working method thereof
  • WTB-USB gateway based on ARM7 and working method thereof
  • WTB-USB gateway based on ARM7 and working method thereof

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 1-8 As shown, a WTB-USB gateway based on ARM7 includes a WTB board 1, a USB board 2, a CPU board 3, a power supply board 4 and a backplane 5, and the WTB board 1 and USB board 2 And CPU board 3 is bidirectionally connected with backplane 5 by backplane bus, and described power supply board 4 is connected with WTB board 1, USB board 2 and CPU board 3 respectively by power cord; Described WTB board 1 is responsible for data acquisition and transmission of WTB bus equipment; described USB board 2 is responsible for data acquisition and control of USB equipment; described WTB board 1 includes MCU control circuit 6, FPGA codec processor 7 and WTB bus driver 8. The FPGA codec processor 7 is bidirectionally connected with the MCU control circuit 6, the WTB bus driver 8 and the backplane 5 respectively, and the MCU control circuit 6 is bidirectionally connected ...

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Abstract

The invention discloses a WTB-USB (Wired Train Bus-Universal Serial Bus) gateway based on ARM7 and a working method thereof. The gateway comprises a WTB board card, a USB board card, a CPU board card, a power supply board card and a back board; the WTB board card, the USB board card and the CPU board card are bilaterally connected with the back board through a back board bus; the WTB board card is in charge of the data acquisition and the transmission of WTB bus equipment; and the USB board card is in charge of the data acquisition and the transmission of USB equipment. The working method comprises the following steps of: converting WTB bus data into USB bus data and converting the USB bus data into the WTB bus data. According to the invention, the problem of data communication between the special wired train bus (WTB) and the universal serial bus (USB) is solved. The invention not only has WTB process data function, message data function and bus management function, but also has USB link layer management function and application layer function.

Description

technical field [0001] The invention relates to a data conversion device of a computer communication network control system of a railway train, a subway train and an urban rail transit vehicle, in particular to an ARM7-based WTB-USB gateway and a working method thereof. Background technique [0002] With the needs of the leapfrog development of railways, CRH5, CRH2, HXD1 and other EMU trains are widely used on domestic trunk lines, and foreign advanced TCN network control technology has been introduced into China. At the same time, my country's electric locomotives have also begun to adopt TCN technology, that is, through the TCN network to solve the collection and control of all signals on site. [0003] IEC61375-1 "Train Communication Network", referred to as the TCN standard, is an international standard and also the standard of my country's railway industry TB / T3035-2002. The TCN standard defines two forms of the multifunctional vehicle bus MVB and the twisted train bus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L12/66H04L12/56
Inventor 于跃姜悦礼夏福坤牟岩张晓玲
Owner CHINA CNR CORPORATION