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A locomotive reconnection communication device and control method

A locomotive reconnection and communication device technology, applied to locomotives, data exchange through path configuration, transportation and packaging, etc., can solve potential safety hazards, LON intelligent nodes cannot communicate, and cannot monitor and control the running status of locomotives in time. Achieve the effect of improving stability and reliability, and improving troubleshooting capabilities

Active Publication Date: 2018-09-18
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If data congestion occurs in any of the components, the LON intelligent node cannot communicate with the vehicle LON network normally, resulting in the inability to monitor and control the running status of the locomotive in time, resulting in potential safety hazards

Method used

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  • A locomotive reconnection communication device and control method
  • A locomotive reconnection communication device and control method
  • A locomotive reconnection communication device and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] figure 2 It is a structural schematic diagram of the locomotive reconnection communication device according to Embodiment 1 of the present invention. Such as figure 2 As shown, the locomotive reconnection communication node device 200 includes a main processing unit 21 , a channel control unit 22 and a LON channel unit 23 . Wherein, the channel control unit 22 is connected with the LON channel unit 23 to control the working state of the LON channel unit 23 . The LON channel unit 23 is connected to the train LON network, and is used to complete the communication protocol conversion between the locomotive reconnection communication device and the train LON network. In this embodiment, the main processing unit 21 is connected to the channel control unit 22 through a data address bus, and is used to issue control instructions to the train LON network via the channel control unit 22 and obtain data in the train LON network.

[0054] Specifically, the channel control uni...

Embodiment 2

[0078] Figure 4 It is a structural schematic diagram of the locomotive reconnection communication device of this embodiment. The difference from Embodiment 1 is that the channel control unit 22 is provided with an interrupt control module 228 and a serial port communication control module 229 . An external control device can be connected to the channel control unit 22 through a serial port to issue control commands or download data.

[0079]The interrupt control module 228 is connected to the data acquisition control module 224 . The external control device is connected to the data acquisition control module 224 through the serial port communication control module 229, and obtains the data of other locomotive reconnection communication devices in the train LON network through the working channel selected by the channel control unit 22.

[0080] Wherein, the serial port communication control module 229 can be configured to realize serial-to-parallel conversion of serial data...

Embodiment 3

[0098] Figure 7 It is a flow chart of the steps of the control method of the locomotive reconnection communication device in this embodiment. In this example, it is prioritized to determine whether the state of the active LON channel 25 is normal. Specific steps such as Figure 7 shown.

[0099] First, in step S501, the access flags are preset, that is, the data buffers corresponding to the active LON channel and the standby LON channel are respectively preset with access flags used to indicate the working status of the LON channel.

[0100] Subsequently, step S502 is executed to respectively write data into the active channel data buffer area and the standby channel data buffer area. When the data is successfully written, the access flag of the data buffer area is changed. It is inconvenient to keep the access flag when data writing is unsuccessful. In this way, the change of the access flag can indicate that its corresponding LON channel can work normally.

[0101] Ne...

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Abstract

The invention provides a locomotive reconnection communication device and a control method. The device comprises an LON channel unit and a channel control unit, wherein the LON channel unit is connected to a train LON and used for completing communication protocol conversion between the locomotive reconnection communication device and the train LON; the channel control unit is connected with the LON channel unit so as to control the working state of the LON channel unit. The LON channel unit comprises a main LON channel and a standby LON channel. The channel control unit selects one channel as the service channel and conducts two-way data exchange with the train LON through the service channel. The method comprises the steps that access signs used for indicating the working state of the LON channel are preset for a corresponding data buffer of the main LON channel and a corresponding data buffer of the standby LON channel; the service channel is selected according to the access signs and used for conducting data exchange with the train LON.

Description

technical field [0001] The invention relates to the technical field of locomotive reconnection, in particular to a locomotive reconnection communication device and a control method. Background technique [0002] In order to improve the traction capacity of the train, double-section locomotives are usually used for double traction to increase the traction tonnage. The reconnection device installed on each traction locomotive can realize functions such as synchronous reversing, synchronous traction and synchronous braking of reconnected locomotives. Through the locomotive reconnection device, the driver performs various controls on the leading locomotive and non-leading locomotives, and monitors their running conditions. Among them, the locomotive reconnection device is a distributed multi-machine measurement and control system, which is used to collect generator current, speed, shaft temperature, oil pressure and switch signals, and complete control of motor speed regulation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/22H04L12/40B61C17/00
CPCB61L15/0018H04L67/12
Inventor 冯炳刘松柏杨栋新张东方班立权何良代宏泽肖健
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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