CN101143586A

CN101143586A - Radio early warning device for preventing train from overtaking collision

Info

Publication number: CN101143586A
Application number: CNA200610152009XA
Authority: CN
Inventors: 杜明义
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-11
Filing date: 2006-09-11
Publication date: 2008-03-19

Abstract

The invention relates to a radio pre-warning device for preventing rear-end collision of trains, which comprises a micro processor (4), an accumulated battery (3), a radio station (5), a pressure sensor (10), an input button (9), etc., which are installed at the tail part of a running train; a high-pressure soft tube (1) is communicated with a main brake pipe of the train. When the train runs, the micro processor (4) monitors the information of changed pressure of the brake pipe of the train by inquiring the pressure sensor (10); when the train is judged to have to emergently stop, the micro processor controls the radio station (5) to continuously transmit the radio alarm signal of, ''No. ''XX'' train is forced to stop and the ''X'' bound train, please do not get close!'', and a strong light protective lamp (6) flashes to conduct assisting protection, so as to remind the drivers of the following trains to take safety measures to prevent the rear-end collision.

Description

Prevent the train from overtaking collision radio early warning device

Technical field

The present invention relates to a kind of prior-warning device that prevents that railroad train from knocking into the back, particularly relate to a kind of can prevent follow-up train from overtaking collision prevent the train from overtaking collision radio early warning device.

Technical background

The passenger train of railway is in operation and meets some unexpected emergency situations on occasion and be forced in interval temporary term stop, for preventing the train generation rear-end collision of follow-up tracking, is protected by the last vehicle of train of protected personnel in temporary term stop.But run into the circuit bend, weather is bad or during some other situation, the driver of follow-up tracking train can not in time find to stop the protection signal of train sometimes, as easy as rolling off a log generation train from overtaking collision accident.The train from overtaking collision accident of several consequence bitternesses had taken place in the railway system in recent years, this shows, there is being serious hidden danger in the railway system aspect the safety problem of anti-follow-up train from overtaking collision.

Summary of the invention

In order to prevent follow-up train generation rear-end collision, the invention provides a kind of wireless alarming and prevent the train from overtaking collision device.This device is met train when being forced in interval temporary term stop, can be automatically transmitting radio alerting signal continuously, remind the train operator of follow-up tracking to take safety measures, prevent the generation of rear-end collision.

Railway system's train is after being forced to stop in the interval at present, substantially be to utilize signal lamp, code flag to protect, because signal lamp, flag are visual signals, at driver's off color of some difficult sections such as bend, tunnel, the bad chance mist of weather, sleet or follow-up tracking train, when interruption is watched from a height or a distance, just can not in time find to stop the protection signal of train, the untimely accident that causes train from overtaking collision of as easy as rolling off a log generation braking.

Can see that here the train that moves will guarantee safety on railway line, must in time find the interim train that stops in the place ahead, the accident that could take brake measure to prevent in advance to knock into the back.

The present invention solves the technical scheme that its problem takes: the afterbody at the railway operation train installs the wireless protective device of a cover additional, it utilizes microprocessor by monitoring the information that the train braking main pipe pressure changes, judge the running state of train, when train is forced to interim sudden stop in the interval, microprocessor control radio station launches alerting signal continuously, remind the train operator of follow-up tracking to take safety measures, prevent the generation of rear-end collision.

The invention has the beneficial effects as follows, utilize microprocessor by monitoring the information that the train braking pipe pressure changes, judge continuous transmitting radio alerting signal when train is forced to sudden stop in the interval, remind the driver of follow-up tracking train to take safety measures and prevent rear-end collision, solved the protection question of last vehicle of train.

Description of drawings

Fig. 1 is the system chart of radio early warning device of the present invention.

1. air brake valves among the figure, 2. locomotive, 3. vehicle, 4. radio early warning device, 5. the car brakeing person in charge, 6. the locomotive brake person in charge.

Fig. 2 is the action principle scheme drawing of radio early warning device main frame of the present invention.

1. high pressure connection hoses among the figure, 2., 3. storage battery, 4. microprocessor, 5. radio station, 6. high light protective light, 7. speech chip, 8. infrared ray input port, 9. input button, 10. pressure transformer, 11. exhaust needle-valves.

Specific embodiments

The rolling stock of operation is air damper at present, and the brake pipe must keep during train operation

At the state that connects, be the pressure air of 600kPa in the brake pipe.In the time of need implementing service braking to train, driver control locomotive automatic brake valve, pulsation-free is discharged the pressure air of the part in the brake pipe; When needing emergency braking, then fast speed is discharged the pressure air in the brake pipe.

Reach a conclusion thus, the air pressure that train is in operation in the brake pipe is 600kPa; When the driver implements service braking to train, brake pipe's gradual drop part pressure; When the driver implemented emergency braking to train, the air pressure fast speed in the brake pipe descended most zero.Like this, by the rule that monitoring train braking main pipe pressure changes, just can accurately judge the running state of train.

With reference to Fig. 1: this scheme radio early warning device (4) is installed on the vehicle (3) of last vehicle of train, its high pressure connection hose and car brakeing are responsible for (5) and are connected, locomotive brake is responsible for (6) and is also connected with the car brakeing person in charge (5), and trainman's maneuvering air brake activation valve (1) is being controlled the pressure variation that train braking is responsible for.

With reference to Fig. 2: the high pressure connection hose (1) of this scheme is connecting car brakeing to be responsible for, and hyperbaric chamber (2) is assembled into one with high pressure connection hose (1), and exhaust needle-valve (11) and pressure transformer (10) are installed on the hyperbaric chamber (2).Microprocessor (4) is gathered the information of pressure transformer (10), and infrared ray (7) is microprocessor (a 4) Data Input Interface.Storage battery (3) is powered to system.Input button (9) is a datin, has 0～9, buttons such as upper and lower, test, affirmation, utilizes infrared interface (8) to microprocessor (4) input data.Speech chip (7) memory device is organized the voice field more.The pressure information that microprocessor (4) is responsible for by pressure transformer (10) inquiry train braking is being controlled radio station (5) and high light protective light (6).

According to the train number of train, utilize the data of input button (9) corresponding train number of input and upstream or downstream before train starts, high pressure connection hose (1) is connected with the vehicle braked person in charge after being installed on the vehicle of last vehicle of train.Microprocessor (4) passes through pressure transformer (10) inquiry brake pipe's air pressure when 600kPa, judges the state of train in normal operation, is controlling radio station (5) in off position; Microprocessor (4) is inquired about brake pipe's air pressure when slowly descending by pressure transformer (10), microprocessor (4) is judged train in normal apply brake measure, is controlling radio station (5) maintenance closed condition; The air pressure that microprocessor (4) is responsible for by pressure transformer (10) inquiry train braking descends rapidly, the speed per second that descends is greater than 75kPa pressure and be reduced to zero, microprocessor (4) judgement train has been implemented the emergency braking measure in interval temporary term stop, microprocessor (4) is according to the data of input button (9) input, extract the voice field of speech chip (7) storage, controlling the wireless alarm signal of continuous emission of radio station (5) and the same frequency of locomotive station, controlling high light protective light (6) flicker simultaneously and assisting protection.The transmitting range of radio station (5) is 2000～3000 meters, and after the locomotive station of tracking train received radio alarm signal, the driver can take safety measures and prevent rear-end collision.

The voice field of the how groups of speech chip (7) stored, the voice of radio station emission radio alarming are: " XX " inferior train is forced to stop, and " X " ranks car please not have approaching!

When after the train of interval sudden stop is eliminated the reason of stopping, continuing to drive, driver control locomotive automatic brake valve is the supplementary pressure air in train braking is responsible for, the air pressure that microprocessor (4) is responsible for by pressure transformer (10) inquiry train braking rises, when pressure rises to 600kPa, microprocessor (4) time-delay was closed radio station (5) after 90 seconds, and system reenters inquiry pressure transformer (10) and gathers the state that train braking is responsible for air pressure information.

When train reaches destination stop and takes off radio early warning device, need manual exhaust needle-valve (11) exhaust, the pressure air that train braking is responsible for takes off radio early warning device after discharging slowly, can avoid radio station (5) to mistakenly launch radio alarm signal, prevents to disturb the normal use of other locomotive stations.

Claims

1. one kind prevents the train from overtaking collision radio early warning device, is made up of microprocessor, radio station, pressure transformer, input button etc.It is characterized in that: it gathers the information that train braking is responsible for internal pressure with pressure transformer, and microprocessor is responsible for the rule that internal pressure changes by the inquiry train braking, the running state of monitoring train.When the train braking pipe pressure sharply drops to zero, the continuous transmitting radio alerting signal of microprocessor control radio station and controlling the flicker of high light protective light and assisting protection is reminded the driver of follow-up tracking train to take safety measures and is prevented rear-end collision.

2. according to the claim 1 described train from overtaking collision radio early warning device that prevents, it is characterized in that: its microprocessor is at the speed per second that inquires the train brake pipe pressure decay during greater than 75kPa, judge train execution emergency braking condition, the radio alarm signal of emission of control radio station and the same frequency of locomotive station.

3. end the train from overtaking collision radio early warning device according to claim 1 described anti-going up, it is characterized in that: its datin can with train number, go up or descending quantitative data input to microprocessor, microprocessor could be controlled radio station's emission " XX " inferior train and be forced to stop, and " X " ranks car please not have approaching! Radio alarm signal.

4. according to the claim 1 described train from overtaking collision radio early warning device that prevents, it is characterized in that: when after train is eliminated the reason of stopping, continuing to drive, after the air pressure that microprocessor is responsible for by pressure transformer inquiry train braking rises to authorized pressure, delay time after 90 seconds warning of termination radio station automatically and the flicker of high light protective light.

5. according to the claim 1 described train from overtaking collision radio early warning device that prevents, it is characterized in that: the exhaust needle-valve is arranged on its hyperbaric chamber, when train reaches destination stop and takes off radio early warning device, manually the exhaust needle-valve takes off radio early warning device after the train braking person in charge's pressure air is discharged slowly, can avoid radio station (5) to mistakenly launch wireless alarm signal, prevent to disturb the normal use of other locomotive stations.