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A Superposition Method of Power Supply and Communication for Axle Counting System

A superposition method and axle counting technology, which can be used in railway signals, railway signals and safety, vehicle route interaction equipment, etc., and can solve problems such as excessive use of cables.

Active Publication Date: 2017-10-24
BEIJING YONGLIE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In order to solve the problem of excessive cable usage between the outdoor equipment and the indoor equipment in the existing axle counting system, the present invention provides a new connection method between the outdoor equipment and the indoor equipment of the axle counting system, such as image 3 shown

Method used

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  • A Superposition Method of Power Supply and Communication for Axle Counting System
  • A Superposition Method of Power Supply and Communication for Axle Counting System
  • A Superposition Method of Power Supply and Communication for Axle Counting System

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Embodiment Construction

[0025] This embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same or similar to this embodiment are within the protection scope of the present invention.

[0026] like Figure 4 As shown in the present invention, a superposition method of power supply and communication for an axle counting system, indoor equipment includes a first transformer 1, a first film capacitor 2, a DC power supply unit 3 and an audio communication unit 4, and outdoor equipment includes a second Transformer 5 , second film capacitor 6 , outdoor load 7 and audio communication unit 8 .

[0027] Both ends of the first film capacitor 2 are respectively connected to the pins 1 and 12 of the first transformer 1 to connect the secondary coils 1-3 and 10-12 of the first transformer 1 . The positive output terminal of the DC power supply unit 3 is connected to the pin 1 of the first transformer 1 , and the negative output terminal is connected...

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Abstract

The invention discloses a power supply and communication superposition method for an axle counting system. A power source and a communication signal are superposed by means of a transformer indoors (in a signal equipment room), and the superposed signal is transmitted to the outside of a room (beside a rail) remotely through a pair of twisted-pair cables (two cores). The power source and the communication signal are separated through the transformer outdoors, the separated power source is used for supplying power to outdoor equipment, and the separated communication signal is used for realizing indoor and outdoor bidirectional communication. The power supply and communication superposition method has the advantages as follows: four-core cables required between conventional outdoor equipment and indoor equipment are changed into two-core cables, the number of cores of each cable used actually is half reduced by comparison with a traditional manner, the quantity of required cables is greatly reduced under the condition of remote transmission, the construction cost is reduced, and the method has great popularization value and produces good economic benefits and social benefits after being widely popularized and used.

Description

Technical field: [0001] The invention is applied to the field of railway signal axle counting systems, and relates to a power supply communication superposition method for the axle counting system. Background technique: [0002] Axle counting system, as the detection equipment of "occupancy / vacancy" of track section, has been widely used in the field of rail transit, and is the standard configuration equipment of subway and light rail signal system. [0003] The axle counting system consists of the indoor equipment (axle counting host) installed in the signal equipment room and the outdoor equipment (axle counting point) installed beside the track. The distance between the indoor equipment and the outdoor equipment is 6 kilometers at most and 3 kilometers on average. kilometers, it needs to be connected by axle counting cables. [0004] In the traditional axle counting system, it is divided into the following two systems according to the difference of outdoor equipment: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L1/16
CPCB61L1/16B61L1/167
Inventor 王全臣林震程博范纪军范正军
Owner BEIJING YONGLIE TECH
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