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Digital dual-mode column tail system based on wireless communication

A wireless communication and digital technology, applied in the field of train tail system, can solve the problems such as the inability to solve the communication distance of the train tail of trucks, save investment in mobile repeaters and interval relay equipment, solve co-frequency interference, and improve train tail operations efficiency effect

Pending Publication Date: 2018-12-18
SIGNAL & COMM RES INST OF CHINA ACAD OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In terms of product application, 450MHz analog or 400MHz digital communication cannot solve the problem of communication distance at the rear of trucks in mountainous tunnel sections

Method used

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  • Digital dual-mode column tail system based on wireless communication
  • Digital dual-mode column tail system based on wireless communication
  • Digital dual-mode column tail system based on wireless communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-4 As shown, a digital dual-mode end-of-train system based on wireless communication, including the end-of-line locomotive platform installed on the locomotive, the end-of-line host installed at the tail of the train, the locomotive number confirmation device, the detection equipment for entering and leaving the warehouse, and the end-of-line host testing table.

[0035] The basic working principle of the above equipment:

[0036] Tail locomotive platform and main engine: input the 8-digit locomotive number (locomotive model code + locomotive number) into the main engine with a unique 6-digit ID, and the locomotive will establish a "connection" with the main engine Relationship (that is, one-to-one relationship); the locomotive crew manipulates the locomotive station at the end of the train to send various digital code instructions including the locomotive number and the ID of the end host to the end host, and the host at the end of the train receives ...

Embodiment 2

[0045] This embodiment includes a dual-mode mode communication method, including:

[0046] The locomotive station at the end of the train and the main engine at the end of the train adopt UDP protocol for wireless data communication under the GSM-R / GPRS network. At the same time, the host at the end of the column adopts the CSBK protocol in the DMR direct mode for wireless data communication, which complies with the relevant regulations in Section 7.2 of ETSI TS 102 361-1V2.2.1 (2013-02).

[0047] 1. Establish a connection relationship

[0048] 1) Number input mode of host at the end of column

[0049] After the host at the end of the column is turned on, it sends a number input request message every 20s in a 400MHz digital mode. After the operator at the end of the train enters the locomotive number to the main engine at the end of the train through the locomotive number confirmation device, the number input request is sent to the locomotive station at the end of the train ...

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Abstract

The invention discloses a digital dual-mode train tail system based on wireless communication, which comprises a train tail locomotive platform installed on a locomotive and a train tail main engine installed on the train tail. The train tail locomotive platform comprises a main engine, an antenna respectively connected with the main engine, a train tail control box and a control cable. The main engine comprises a power supply unit, a recording unit, a communication unit and a main control unit of the train tail locomotive platform. The main control unit of the train tail locomotive platform is respectively connected with the recording unit and the communication unit through an RS232 interface, and the communication unit comprises a GSM-R module, a 400 MHz digital channel machine and a combiner,The input ends of the R module and the 400MHz digital channel machine are connected with the main control unit of train tail locomotive platform respectively, and the combiner is connected withan antenna. The invention solves the weak field problem of mountain tunnel communication, saves the investment of the mobile repeater and the interval relay equipment, solves the problem of the same frequency interference, improves the operation efficiency of the train tail, and reduces the overall transportation cost.

Description

technical field [0001] The invention relates to a train tail system, in particular to a digital dual-mode train tail system based on wireless communication. Background technique [0002] The safety protection device at the tail of the train (hereinafter referred to as the "tail device") is mainly used for locomotive crews to timely and accurately grasp the wind pressure at the tail of the train after the car guard is canceled for freight trains; When the limit value is exceeded, the device will automatically alarm; when the vehicle corner cock is accidentally closed, the locomotive crew can manipulate the tail device of the train to perform tail exhaust auxiliary braking to prevent the accident of the train's "slack"; it has the function of marking the tail of the train day and night. The main equipment of the tail device includes two parts: the main engine (including battery) and the locomotive platform at the tail. [0003] Products prior to the present invention communic...

Claims

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Application Information

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IPC IPC(8): B61L15/00B60T17/22
CPCB60T17/22B61L15/0027B61L15/0054Y02P90/02
Inventor 欧阳智辉徐钧王激孙宝钢高尚勇魏军王巍付文刚薛柱王超孟昭张杰
Owner SIGNAL & COMM RES INST OF CHINA ACAD OF RAILWAY SCI
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