CN202294879U

CN202294879U - Train operation early warning system

Info

Publication number: CN202294879U
Application number: CN2012200294514U
Authority: CN
Inventors: 史艺
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-30
Filing date: 2012-01-30
Publication date: 2012-07-04
Anticipated expiration: 2022-01-30

Abstract

The utility model relates to a train operation early warning system which comprises a plurality of signal machines and signal lamps controlled via the signal machines, wherein the detection ends of the signal machines are provided with conducting wires connected with rails. The train operation early warning system is also provided with a central control unit and a plurality first signal transmitting and receiving devices connected with a central processing unit, the quantity of the first signal transmitting and receiving devices is the same to that of the signal machines, each first signal transmitting and receiving device is respectively and wirelessly connected with one second signal transmitting and receiving device, the input ends of the second signal transmitting and receiving devices are respectively connected with a weather detection device, a photoelectric detection device and a vibration sensor, and the signal machines are also connected with the second signal transmitting and receiving devices. The train operation early warning system has the advantages of diversified detection means and high confidence level of detection results. The influences of various kinds of weather on various sensors are considered, the confidence level of each sensor is determined, the result collected by each sensor is endowed with weighted mean coefficient, the weighted mean is calculated, the detection results are accurate, weather has little influence on the detection results, and the operation safety of a train is guaranteed.

Description

The train operation forewarn system

Technical field

The utility model relates to a kind of train operation forewarn system.

Background technology

In recent years, the development of motor-car, high ferro brings great convenience for people's trip.In order to ensure the safety of the train operation of running at high speed, more and more stricter to the requirement of supervision of train running, dispatching system.Existing train operation forewarn system mainly relies on signal; Its detection means is: whenever at a distance from a segment distance signal is set on the rail side; Each signal all passes through lead and links to each other with rail, measures the resistance between per two signals through testing circuit, when train sails between two signals; The resistance that they record can reduce; Signal is through decision circuit, makes that all and the minor increment of first signal of train rear all flash the redlight with interior signal lamp at two kilometers, the signal lamp between two kilometers to four kilometers all lights amber light, to prevent the rear-end collision generation of train.

Yet there is critical defect in this supervision of train running system: under thunderstorm weather, rail very easily attracts thunderbolt, because signal links to each other with rail through lead, being struck by lightning usually can cause serious harm to the signal of near zone.Signal can not provide signal even provide spurious signal owing to suffering damage, and be easy to cause train to have an accident, and train running speed is fast, transport of passengers is many, in case have an accident, can bring great loss to the people's lives and property.

Summary of the invention

The technical matters that the utility model will solve provides and a kind ofly receives that weather effect is little, testing result accurately, can guarantee the train operation forewarn system of train operating safety.

The utility model is achieved in that

A kind of train operation forewarn system; Comprise a plurality of signals and the signal lamp of controlling through signal; Be provided with the lead that is used to connect rail in the test side of signal; Its special character is: it also be provided with Central Processing Unit (CPU) and with a plurality of first signal transceivers of central processing unit bonded assembly; The described first signal transceiver is identical with the quantity of signal; Each first signal transceiver is respectively through secondary signal transceiver of wireless connections, is connected with weather detection devices, photodetector system, shock sensor respectively at the input end of secondary signal transceiver, and described signal also is connected with the secondary signal transceiver and is used for realizing transmission of train position signal and the mode of operation of accepting central processing unit instruction control signal lamp.

Above-mentioned train operation forewarn system, described weather detection devices is made up of visbility detector and thunder and lightning environment measuring appearance.

Above-mentioned train operation forewarn system, described photodetector system is made up of laser beam emitting device that places the rail both sides respectively and laser receiver.

The beneficial effect of the utility model is: owing to adopt signal, photodetector system, electric signal, optical signal, vibration signal when shock sensor arrives to train comprehensively to monitor, monitoring result is with a high credibility; Simultaneously, utilize weather detection devices to collect near the weather conditions of signal supervisory instrument, consider of the influence of weather such as strong wind, sand and dust, thunderstorm by Central Processing Unit (CPU) various kinds of sensors; Confirm the confidence level of each sensor; Give result that each sensor acquisition arrives with the weighted mean coefficient through central processing unit, and calculate weighted mean, testing result is more accurate; Receive weather effect little, ensured the driving safety of train.

Description of drawings

Fig. 1 is the integral structure scheme drawing of the utility model;

Fig. 2 is the scheme of installation of the utility model;

Fig. 3 is the fundamental diagram of the utility model.

Among the figure: Central Processing Unit (CPU) 1, the first signal transceiver 2, secondary signal transceiver 3, weather detection devices 4; Visbility detector 401, thunder and lightning environment measuring appearance 402, photodetector system 5, laser beam emitting device 501; Laser receiver 502, shock sensor 6, signal 7; Signal lamp 8, lead 9, rail 10.

The specific embodiment

Like Fig. 1, shown in Figure 2; The utility model comprises a Central Processing Unit (CPU) 1; With a plurality of first signal transceivers 2 of central processing unit 1 bonded assembly; A plurality of signals 7 identical and the signal lamp of controlling through signal 8 with the first signal transceiver, 2 quantity, a plurality of signal lamps 8 of each signal 7 configuration, present embodiment is an example with 4; Be connected with the lead 9 that is used to connect rail in the test side of signal 7; Each first signal transceiver 2 is respectively through secondary signal transceiver 3 of wireless connections; Input end at secondary signal transceiver 3 is connected with weather detection devices 4, photodetector system 5 respectively, places the shock sensor 6 on the rail, and described signal 7 also is connected with secondary signal transceiver 3 and is used for realizing transmission of train position signal and the mode of operation of accepting central processing unit 1 instruction control signal lamp 8.

Described weather detection devices 4 is made up of visbility detector 401 and thunder and lightning environment measuring appearance 402.Described photodetector system 5 is made up of laser beam emitting device that places rail 9 both sides respectively 501 and laser receiver 502.The collection result that described Central Processing Unit (CPU) 1 is used for giving each sensor according to weather detection devices 4 is with coefficient of weight and calculate weighted average to judge train position.

Each signal 7, secondary signal transceiver 3, the first signal transceiver 2 and weather detection devices 4, photodetector system 5 and shock sensor 6 are every at a distance from two ~ ten kilometers layouts along rail 10 respectively, are between a detection zone between per two signals 7.

As shown in Figure 3; During work; Whether be that the information of thunder and lightning environment is passed to Central Processing Unit (CPU) 1 with visiblity information, rail 10 peripheries at first, according near real time environment, confirm the confidence level of signal 7, photodetector system 5, shock sensor 6 collection result by central processing unit 1 by weather detection devices 4; And according to credibility, the collection result of distributing each sensor is with coefficient of weight.The distribution principle of coefficient of weight is: when being the thunder and lightning environment around the rail 10, the coefficient of weight of the collection result of signal 7 is less; When being heavy rain, sandstorm environment around the rail 10, the coefficient of weight of the collection result of photodetector system 5 is less; When being in normal environment following time, the coefficient of weight of shock sensor 6 is less.In the present embodiment, the selection following table of coefficient of weight is an example, and reality is not limited by present embodiment.

Environment	Signal	Photodetector system	Shock sensor
				Normally	0.7	0.2	0.1
Heavy rain (more than the 100mm/h)	0.8	0	0.2
				Thunderstorm (thunder and lightning, light rain)	0.2	0.5	0.3
Thunderstorm (thunder and lightning, heavy rain)	0.2	0	0.8

When train sailed between two signals 7, the resistance of the rail between two signals 7 can reduce, and signal 7 is passed to secondary signal transceiver 3 with this signal; When train process photodetector system 5, wheel covers the laser that laser beam emitting device 501 sends successively, and laser receiver 502 obtains square-wave signals and this signal is passed to secondary signal transceiver 3; When train near or during away from shock sensor 6, can produce vibrations, shock sensor 6 transmits signal to secondary signal transceivers 3.

Secondary signal transceiver 3 separates three kinds of signaling zones, and with different frequency three kinds of signals is transferred to Central Processing Unit (CPU) 1 through the first signal transceiver 2.

Central Processing Unit (CPU) 1 gathers three kinds of signals, and gives every kind of signal with basic value, and the selection situation of basic value sees the following form:

Basic value	The signal that Central Processing Unit (CPU) shows signal machine transmits	The signal of Central Processing Unit (CPU) display light electro-detection systems communicate	Central Processing Unit (CPU) shows the signal that shock sensor transmits
				1	Resistance-time curve is clear, continuously and resistance value be starkly lower than setting value.	Photosignal-time curve is clear, a continuous square wave.	Vibration frequency-time curve is a low broken line in preceding clearly high back.
0.5	Resistance value is positioned near the setting value, or resistance-time curve is unintelligible, discontinuous.	The photosignal waveform is unintelligible or discontinuous.	Vibration frequency-time curve is unstable, or long-time not significantly turnover.
				0	Resistance value is apparently higher than setting value.	Photosignal is a straight line.	Shockproof frequency signal or vibration frequency signal chaotic.

Confirm after the basic value of every kind of signal; Each basic value multiply by cooresponding with it coefficient of weight respectively and addition obtains weighted mean; When weighted mean＞0.5; In thinking that train is between this detection zone, and estimate of situation is passed to signal 7 through the first signal transceiver 2 and secondary signal transceiver 3 successively, flashes the redlight by the signal lamp 8 in two kilometers at the signal 7 control train rears; When weighted mean≤0.5, judge whether the place ahead sends out a warning for 2 kilometers, if the bright orange lamp of signal lamp in two to four kilometers at the rear, the signal lamps beyond four kilometers if not the rear give a green light.

Claims

1. train operation forewarn system; Comprise a plurality of signals and the signal lamp of controlling through signal; Be provided with the lead that is used to connect rail in the test side of signal; It is characterized in that: it also be provided with Central Processing Unit (CPU) and with a plurality of first signal transceivers of central processing unit bonded assembly; The described first signal transceiver is identical with the quantity of signal; Each first signal transceiver is respectively through secondary signal transceiver of wireless connections, is connected with weather detection devices, photodetector system, shock sensor respectively at the input end of secondary signal transceiver, and described signal also is connected with the secondary signal transceiver and is used for realizing transmission of train position signal and the mode of operation of accepting central processing unit instruction control signal lamp.

2. train operation prior-warning device according to claim 1 is characterized in that: described weather detection devices is made up of visbility detector and thunder and lightning environment measuring appearance.

3. train operation prior-warning device according to claim 1 is characterized in that: described photodetector system is made up of laser beam emitting device that places the rail both sides respectively and laser receiver.