RU2301169C2 - Device to provide safety of train shunter in off-gauge piece zone - Google Patents

Abstract

FIELD: railway transport.

SUBSTANCE: proposed device contains train shunter instrument unit and locomotive control instrument unit. Moreover, additional stationary instrument unit of constant off-gauge piece consisting of intercommunicating radio transmitter of dangerous off-gauge piece zone, monitoring radio receivers of off-gauge piece dangerous zone and off-gauge piece warning zone, sound signaling device of warning zone of off-gauge piece, lineside light signal, dangerous zone and approach zone control relay. Train shunter instrument unit includes intercommunicated radio receiver of dangerous zone with vigilance button, radio transmitter for communication with shunting locomotive with movement interlock button and backing up radio transmitter for communication with shunting locomotive. Mobile locomotive instruments unit includes train radio station, locomotive instruments control relays, backing up train radio station, signal whistle and locomotive light signal. Proposed device provides blocking of movement of shunting locomotive by pressing interlock button in case of emergency and/or cases dangerous to traffic.

EFFECT: improved safety of train shunter.

3 cl, 1 dwg

Description

The invention relates to railway transport, in particular to devices for ensuring the safety of the train compiler in the area of oversized places.

A known system for alerting the approach of rolling stock (1).

The system comprises a carrier frequency generator, a transmitter having an alarm unit and a receiver. Moreover, the transmitter is mounted on a rolling stock and contains a modulator made of two series-connected multivibrators and a key stage. The output of the modulator is connected to the output of the carrier frequency generator and connected to the input of the resonant amplifier in class B. The amplifier is connected to the first input of the decoupling device and the output of the locomotive radio transmitter. The receiver contains two series-connected resonant amplifiers, and in addition, a mixer, an intermediate frequency amplifier, an amplitude detector, non-inverting and inverting low-frequency amplifiers, two batteries, a voltage level control unit.

The output of the second resonant amplifier is connected to one input of the mixer, the other input of which is connected to the output of the local oscillator, and the output is to one of the inputs of the intermediate frequency amplifier, the output of the latter is connected to the input of the amplitude detector. The output of the amplitude detector is connected to another input of the intermediate frequency amplifier and the input of a non-inverting low-frequency amplifier, the output of the latter is connected to the output of the inverting low-frequency amplifier. Moreover, the alarm unit is made in the form of an audio signaling device and has a piezoelectric transducer. The first power battery is connected to the power terminals of the high-frequency resonant amplifiers of the mixer and local oscillator. And to the power terminals of the inverting and non-inverting low-frequency amplifiers is connected a power source formed by two power batteries connected in series and connected to the voltage level control unit.

The proposed system for alerting the approach of rolling stock provides a warning for those working on the tracks, but does not solve the problem of ensuring the safety of train compilers.

The invention is also known (2). The device contains sensors for determining the location of the train associated with rail circuits and connected through a communication line. The communication line is connected to power sources, alert control units, a control command generation unit, an emergency notification unit, an alert enable control unit. And also connected is a unit for generating a notification command connected to a block for activating a warning signal at a traffic light and a block for transmitting a notification to an electric locomotive.

The device also contains a unit for monitoring the health of the elements of the device connected to the alarm unit, and a control unit for energy sources of the means of mechanization of track works. The first and second outputs of the energy source control unit are designed to connect mechanization means to the energy sources, and the third output is connected to the first input of the receiver unit, which contains separate radios. The output of the transmitter unit is connected to the second input of the receiver block. The output of the transmitter unit is connected to the output of the alarm unit, and the output of the receiver unit is connected to the second input of the emergency notification unit.

The team of workers includes a warning device, the transmitter unit is deployed along the front of the work and connected to a special device.

Each worker puts on overalls, to which an individual radio transmitter is attached, which monitors the work, and a special unit.

The approach of the train triggers the alert control unit.

The notification command generation unit generates a control signal for an electric locomotive and the inclusion of a special traffic signal.

As a result, in addition to their main indicators, a signal is lit informing about the conduct of track work.

When you enter the approaching area at the locomotive traffic light, the signal “Work on the tracks” is lit. At the same time, the energy sources of the mechanisms working on the tracks are switched off and sound and light alerts are given about the need to take people out of the danger zone. Signals are given as long as the train is in the area where the track work is carried out. After the train passes through this section, the warning signals are turned off, the energy sources are turned on and the mechanisms are brought back into working condition.

This device provides a reliable warning system for repair workers, but also does not ensure their safety in case of delay on the tracks.

The closest analogue is a device for alerting the approach of a train (3).

This device develops the previous invention and is characterized in that it is equipped with sensors of the monitor system, each of which includes a biogalvanic cell designed to generate a signal, taking into account the rhythmic and other processes of the body of the employee participating in the work on the way. It is equipped with individual transmitters of the specified signal in the form of bio-radio emission, which are associated with individual remotes, which include buttons for monitoring the worker’s adequate and timely reaction located in a safe area, as well as a receiver unit containing radio receivers, each of which includes a corresponding button for the employee’s actual output from the danger zone, while the receiver unit is connected to the emergency driver notification device.

This device also notifies each worker about the approach of the train and, in addition, monitors the individual stress level of the worker, his actual exit from the danger zone, but is not able to ensure the safety of the train compiler due to the specifics of his work and the inability to move to a safe distance in the oversized area.

The aim of this invention is to ensure the safety of the train compiler in the oversized area.

The goal is achieved by the fact that the proposed device contains a stationary unit of devices of a constant oversized place, additional radio transmitters with a shunting locomotive, a control panel and a motion blocking button are included in the staff unit of the train compiler, and a system is received in the mobile unit of locomotive devices that receives signals from these radio transmitters and special signal blocking the movement of the locomotive.

A safety device for a train compiler, comprising a train of devices for a train compiler and a block of locomotive control devices, characterized in that an additional stationary unit of devices of a permanent oversized place is included, consisting of interconnected radio transmitters in the danger zone of an oversized place, radio receivers for monitoring the dangerous zone of an oversized place, and notification of an oversized place , an audio signaling device of a zone of the notification of an oversized place, the traffic light floor, the relay of control of a dangerous zone and a zone of approach the unit of devices of the train compiler, interconnected, includes a hazardous area radio with a vigilance button, a radio transmitter with a shunting locomotive, a motion lock button, a backup radio transmitter with a shunting locomotive, and a mobile unit of locomotive devices includes a train radio station for a locomotive control relay, a duplicate train radio station, a typhon of an audio signal and a locomotive traffic light.

An oversized area hazardous area radio transmitter, an oversized area hazardous area monitoring radio receiver and an oversized area area warning radio receiver are installed directly in the oversized area area.

The length of the notification section is determined based on the maximum permitted speed of the locomotive of the given shunting area of the station and the notification time.

The drawing shows a diagram of a safety device for a train compiler.

The device contains three interconnected instrument blocks:

- stationary instrument cluster of permanent oversized space 1;

- wearable device block train compiler 2;

- mobile unit of locomotive control devices and blocking movement 3.

The stationary instrument cluster of a permanent oversized place 1 contains:

- radio transmitter in the danger zone of an oversized place 1.1;

- a radio receiver for monitoring the danger zone of an oversized place 1.2;

- a radio receiver of a zone of the notification of an oversized place 1.3;

- sound alarm zone warning oversized places 1.4;

- traffic light floor 1.5;

- danger zone monitoring relay (with one normally closed and one normally open contacts) 1.6;

- proximity zone control relay (with one normally closed contact) 1.7.

The devices of block 1 are installed as follows.

The radio transmitter 1.1, radio 1.2 and radio 1.3 are installed directly in the oversized area.

The wearable unit of the train compiler 2 contains:

2.1. - hazardous area radio with a “Green” vigilance button 2.3;

2.2. - a radio transmitter for communication with a shunting locomotive, with a "Red" button 2.4;

2.5. - a backup radio transmitter for communication with a shunting locomotive with a "Yellow" button 2.6, which switches the operating modes of the device (see P3 mode below).

Block 2 constructively complements the full-time wearable train composer radio station.

The mobile unit of locomotive control devices and blocking movement 3 contains:

train radio station 3.1;

relay control locomotive devices (with one normally open and two normally closed contacts) 3.2;

duplicate train radio station 3.5.

Also, standard locomotive devices that are used by the device to ensure safety when working in the oversized area are conventionally assigned to the locomotive instrument cluster:

3.3. - locomotive traffic light;

3.4. - typhon, giving out a sound signal;

3.6. - locomotive braking system (not shown in the diagram).

Devices 3.1, 3.2 and 3.5 complement the standard equipment of the locomotive and can be placed in any convenient place in the cabin of the shunting locomotive so as not to interfere and provide easy access when using standard equipment and devices.

Device setup

The reception zone by the radio receiver 1.3 of the signal of the radio transmitter 2.3 is adjusted based on the calculation of the length of the notification section I ₀ (the distance to the train compiler from an oversized place, approaching which the compiler should receive a warning signal);

I ₀ = V ^* t ₀ , here V ^* is the maximum permitted locomotive speed for a given shunting area of the station, at ₀ is the notification time (calculated in the same way as the notification time when a mobile unit is approaching the place of work on the railway, and , as a first approximation, it can be taken equal to 50 seconds).

The zone of reception by the radio receiver 2.2 of the signal of the radio transmitter 1.1 is adjusted based on the calculation of the maximum possible length of the braking section I ^{* of the} shunting train to an oversized place.

The reception area of the radio receiver 1.2 signal of the radio transmitter 1.1 is not regulated. In this case, it is enough to establish the fact of the operation of this radio channel.

The reception zone by train radio station 3.1 of the signal of radio transmitter 2.3 is not regulated, but is set as technically maximum possible.

The reception area of the radio 2.2 signal of the radio transmitter 2.1 is not regulated. In this case, it is also sufficient to establish the fact of the operation of this radio channel.

The device can operate in four modes:

- active vigilance P1;

- automatic notification of the originator and fencing of the site of work of P2;

- automatic warning of collision P3;

- manual blocking of the movement of the shunting locomotive by the train composer P4.

Active Vigilance P1.

In the active vigilance mode, either all, or only some units of the device, i.e. blocks 1, 2 and 3, and accordingly, we can consider special cases of this mode: P1.1, P1.2 and P1.3.

P1.1. This mode is set automatically when the train compiler is at a distance I from a permanent oversized place larger than the linear size of the warning zone I ₀ (i.e., I> I ₀ ), and the shunting electric locomotive is removed even further and cannot create a collision hazard.

In this case, the instrument block oversized place 1 works as follows.

The radio transmitter 1.1 transmits, and the radio receiver monitoring the hazardous area 1.2 perceives its signal. This received signal controls the operation of the transistor (not shown in the diagram of the radio receiver 1.2), i.e. receiving this signal, the transistor "opens" and through it the power ("plus" of the source) is supplied to the excitation winding of the hazard zone monitoring relay 1.6. The "minus" of the power supply to the field winding of relay 1.6 is fed through a normally closed contact of the proximity control relay 1.7. At the same time, through a normally open contact of relay 1.6, power is supplied to the light (white or green) signal of the traffic light 1.5, allowing the movement of the shunting locomotive. In the mode, the operability of unit 1 is constantly monitored. Thus, in case of any malfunction of the radio transmitter 1.1, the radio receiver 1.2, without receiving a radio signal, will de-energize the relay 1.6, which will cause the traffic light 1.5 to switch to a prohibiting (red or blue, depending on the traffic light used) signal and sound signal 1.4.

P1.2. Block 2 in a state of active vigilance provides for a check of its performance before starting work. To this end, in agreement with the shunting locomotive driver, the train compiler includes radio transmitter 2.1 and, making sure the unit is operational, i.e. in the possibility of blocking the movement of the locomotive (for details, see the description of the P3 mode), this radio transmitter turns on. Block 2 and the shunting electric locomotive go into normal modes, the device is ready for operation in the active alert mode and powers the radio transmitter 2.3, which provides a constant radio signal and provides P1.3 mode.

P1.3. The signal of the radio transmitter 2.3 is received by the train radio station 3.1, and while the train radio station 3.1 receives this signal, the transistor (not shown in the diagram) is opened, through which the power (plus source) of the excitation winding of relay 3.2 is supplied, and, accordingly, the power is supplied the locomotive’s devices allowing its movement, including power, and the light signal (green) of the locomotive traffic light 3.3.

In the state of active vigilance, the safety device continuously monitors the health of all elements, and in the event of a malfunction and (or) the appearance of the train companion in the controlled area, it switches to P2 mode for automatic notification of the train compiler and oversized place fencing or P3 mode for blocking the movement of the shunting locomotive.

The mode of automatic notification of the train compiler and fencing of the place of work P2.

This mode is set automatically when the compiler enters the zone of approaching a constant oversized place (I <I ₀ ), from this moment the radio receiver 1.3 receives the signal of the radio transmitter 2.3. Upon receipt of the radio signal 1.3, a transistor opens (not shown in the diagram), through which power is supplied (plus source) to the excitation winding of relay 1.7. Normally closed contact of relay 1.7 will open and there will be a loss of power to the excitation winding of relay 1.6, and, accordingly, switching the signal of the traffic light 1.5 to prohibitory (“red” or “blue”, depending on the type of traffic light installed), as well as giving the auditor 1.4 an audible alarm . The Howler 1.4 warns of the need for special vigilance when the train designer follows an oversized place, and of other railroad workers, of the need to take security measures to prevent collisions.

So, in P2 mode, the train compiler is notified of approaching an oversized place to the danger zone, and the indications of an outdoor traffic light forbid the shunting locomotive driver to move further to an oversized place, i.e. oversized space is automatically fenced.

Automatic collision warning mode P3.

This mode is set automatically upon further approach to the train builder to an oversized place (I <I ^* ), when a further approach of the shunting locomotive can lead to a collision.

The train compiler can perform work in two modes:

In the first mode, the shunting locomotive is located in the “tail” of the train (the train moves the cars forward) and the oversized space is covered by the compiler walking ahead of the train. This mode of operation of the train compiler corresponds to mode P3.1 of operation of this device. If the train compiler pressed and holds the “Green vigilance control button” 2.4, then the device will continue to operate in P2 mode.

If, in violation of safety requirements, the train compiler did not confirm the alert perception by pressing button 2.3, then with a further dangerous approach to an oversized place, radio receiver 2.1, having received the radio signal from transmitter 1.1, “opens” the transistor (not shown) through which power is supplied to a relay (also not shown in the diagram), which, in turn, de-energizes the radio transmitter 2.2. The lack of power, and, accordingly, the absence of the radio signal of the transmitter 2.3, respectively, will lead to the fact that the radio 3.1 does not provide power to the excitation winding of the relay 3.2. Normally closed contacts of relay 3.2 will close and trigger the locomotive emergency braking system, turn on the typhon 3.4 and switch the indication of the locomotive traffic light 3.3 to the inhibit (red) signal.

If, in accordance with the requirements of the rules, the train compiler, having received warning signals, pressed and holds button 2.3, i.e. confirms its increased vigilance in the oversized area, the automatic blocking of the locomotive does not occur. Pressing the button 2.3 leads to a loss of power to the radio 2.1 and the inability to automatically interrupt the radio signal of the transmitter 2.2.

In the second mode of operation of the train composer, the shunting locomotive is in front of the train, the train compiler is allowed to travel on this train. This mode of operation of the compiler corresponds to mode 3.2 of the safety device. Having perceived the signals given in mode 2, the train compiler should press the “Blue” button 2.6 fixed in the pressed state. Pressing this button turns on the power of the radio transmitter 2.5 and turns off the radio transmitter 2.2. Turning off the transmitter 2.2 leads to the transition of the device into P1.3 mode. At the same time, the permission signal of the traffic light allows the shunting locomotive to continue moving, and the reception by the locomotive radio 3.5 of the switched on signal of the radio transmitter 2.5 allows this movement technically, because and in this case, the excitation winding of the relay 3.2 is kept energized. However, even in this case, the train compiler must confirm his increased vigilance by pressing and holding down the “Green” button 2.1 (see mode P3.1) until the oversized place travels. Otherwise, an automatic blocking of the movement of the shunting locomotive, i.e. automatic collision warning.

Manual blocking of the movement of the shunting locomotive by the train composer P4.

Additionally, the device can provide safety (for example, in the intercar space) of the train compiler or other people who are in a dangerous condition and (or) ensure the safety of equipment, structures, etc. in case of danger of hitting them. For this purpose, the train compiler just press the “Red” button 2.4. In this case, the power of the radio transmitters 2.2 and 2.5 will be interrupted, and the absence of radio signals at train radio stations 3.1 and 3.5 will block the movement of the shunting locomotive (see the description of this process in P3 mode).

The device in blocks separately and during its joint work was tested in laboratory conditions at the department of the Belarusian Railways IrGUPS.

Currently, a separate sample of this device is manufactured and installed in the oversized area of the main material warehouse of the VSZhD.

LITERATURE

1. RF patent No. 2070124, IPC B61L 23/06, “System for alerting the approach of rolling stock”. Applicant: V. Grachev and others. Date of application 08.06.1993

2. Copyright certificate for the invention of the USSR No. 1263568, IPC B61L 23/06, "Device for alerting about the approach of a train." Applicant: Irkutsk Institute of Railway Engineers transport. Date of filing of the invention 04/14/1985

3. RF patent No. 2170187, IPC B61L 23/06, "Device for alerting about the approach of a train." Applicant: Moscow State University of Railway Engineering. Effective date of the invention on June 24, 1999

Claims (3)

1. The safety device of the train compiler, containing the instrument block of the train compiler and the mobile block of locomotive control devices, characterized in that it includes an additional stationary unit of devices of a constant oversized place, consisting of interconnected radio transmitters in the danger zone of the oversized place, radio receivers for monitoring the dangerous zone of the oversized place, and oversized area warning zone, audible warning device oversized area warning zone, outdoor traffic light, hazardous monitoring relay zones and proximity zones, while the train compiler instrument cluster includes a hazardous area radio receiver with an alert button, a communication radio transmitter with a shunting locomotive with a motion lock button, a backup radio transmitter with a shunting locomotive, and a mobile locomotive device block includes a train radio station, a monitoring relay locomotive devices, a duplicate train radio station, a typhon of an audio signal and a locomotive traffic light. 2. The device according to claim 1, characterized in that the radio transmitter of the danger zone of the oversized place, the radio receiver for monitoring the danger zone of the oversized place and the radio receiver of the warning zone of the oversized place are installed directly in the zone of the oversized place. 3. The device according to claim 1, characterized in that the length of the notification section is determined based on the maximum permitted speed of the locomotive of a given shunting area of the station and the notification time.