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Counting axle system using double 2-vote-2 system

A technology of axle counting and cables, which is applied in vehicle route interactive equipment, railway car body parts, railway signal and safety, etc., and can solve the problems of early application of axle counting equipment

Inactive Publication Date: 2009-01-07
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the early application of axle counting equipment, the axle counting system has not yet introduced the 2×2 take 2 architecture

Method used

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  • Counting axle system using double 2-vote-2 system
  • Counting axle system using double 2-vote-2 system
  • Counting axle system using double 2-vote-2 system

Examples

Experimental program
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Embodiment Construction

[0023] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0024] figure 1 It is a schematic diagram of the indoor part of the axle counting system using the 2×2 out of 2 architecture. The indoor ACE layer, DIO layer and power module are placed in the cabinet.

[0025] Since each ACE has 8 filter boards LBB, and each LBB board corresponds to an outdoor electronic detection unit (EAK), the 8 LBBs can be configured in pairs to form a dual-standby redundancy. Such as figure 2 As shown, in such an ACE, four points can be counted according to the double-standby structure. During routine calculation, as long as one LBB data is valid, the axle counting at that point can work normally; when judging the positive and negative 1-axis interference, the data of two LBBs can be compared for 2 out of 2.

[0026] image 3 It is the layout diagram of the indoor part of the axle counting system adopting the 2 × 2 out of 2 structure....

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Abstract

The invention discloses an axle counting system adopting the 2*2 taking 2 framework, and belongs to the field of a railway signal system. The technical proposal thereof is that the system is formed by connecting an outdoor detection part with an indoor monitor part through an axle counting cable. The outdoor detection part includes two pairs of sensors arranged on two rails of outdoor axle counting points, and each pair of the sensors is connected with an outdoor electronic detecting unit (EAK); the indoor monitor part includes an indoor cabinet, an indoor control and display machine, an indoor ACE layer and an indoor DIO layer; the indoor control and display machine, the indoor ACE layer and the indoor DIO layer are mutually connected with a CAN bus through adopting the redundancy mode; each ACE of the ACE layer is provided with two ZKB boards, each ZKB board is composed of two CPUs; each DIO board of the DIO layer is composed of two selfsame DIO cages and controlled by the corresponding ACE master control board ZKB. The axle counting system adopting the 2*2 taking 2 framework improves the security and the reliability of the axle counting system.

Description

technical field [0001] The invention relates to the field of railway signal systems, in particular to an axle counting system adopting a 2*2 out of 2 structure. Background technique [0002] Axle counting system is a signal device used in the field of railway signaling for vehicle occupancy inspection in sections / intervals. [0003] In the field of railway signaling, the hot standby safety signal system is divided into several system architectures such as 2×2 out of 2 structure, dual machine hot standby (2×2) structure, 3 out of 2 structure, and single machine operation. For systems with high safety requirements, such as computer interlocking systems, CTC (Centralized Train Control) systems and other equipment that affect driving safety, the structure of 2×2 is generally adopted. Other secondary safety systems, such as TDCS (Train Command and Dispatching Management System), microcomputer monitoring and other equipment mostly adopt dual-machine hot standby (2×2) structure. ...

Claims

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Application Information

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IPC IPC(8): B61L1/16
Inventor 杨勇段成明
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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