RU2739091C1 - Method of warning about approach of railway rolling stock and enclosure of work area using system arranged on track vehicle (nstv) - Google Patents

Abstract

FIELD: construction; rail vehicles.

SUBSTANCE: invention relates to means of warning about approach of railway rolling stock when performing works on construction and repair of railway infrastructure. In the method, a notification system (NSTV) is installed on the track vehicle on the work site, comprising a control controller, a transceiver, a radio station, at least one loudspeaker and an optical emitter. NSTV uses transceiver to receive control signals from rolling stock detection sensors and, when rolling stock is detected, alert signals and reproduce received signals in the form of audio and optical control signals. NSTV further includes a mode switch which, when the NSTV as part of another rolling stock approach warning system, changes the NSTV to the collective portable alarm device operation mode, wherein the NSTV receives control signals and notification signals from the collective portable signaling device included in the other system, and reproduces the received signals in the form of corresponding audio and optical control signals and warning signals.

EFFECT: possibility of reducing the time for deploying an alarm system during repair and track works is achieved.

1 cl, 1 dwg

Description

The invention relates to railway transport, in particular, to methods of notification of the approach of railway rolling stock when performing work on the construction and repair of railway infrastructure.

There are known methods of warning about the approach of a railway rolling stock to the area of repair work, in which a rolling stock is detected approaching the area of the repair work, and warning signals are generated for repair workers. Such methods are described, for example, in the following documents:

RU 2667682 (published 09.24.2018); RU 2583011 (publ. 04/27/2016); RU 2571844, (publ. 20.12.2015); US 2020062286, IPC B61L 15/00, B61L 23/06, B61L 25/02, (published 02/27/2020).

All of these systems require a long deployment period both in the immediate area of the repair work and in areas close to this area. In addition, the possibility of interaction of devices included in various warning systems about the approach of railway rolling stock to the repair work area is not provided.

The same remarks can be attributed to the method of notifying workers on railway tracks during the production of repair and track works, implemented using the system according to patent RU 2701267 (published 09/25/2009), which contains a transmitting device, which is a walkie-talkie, and a manager's control panel, which is designed to receive a signal from a transmitting device about the approach of a rolling stock, monitor the health of the system and receive alarms about an urgent need to suspend work. Also, the well-known system includes sirens, which are bracelets that are held by all workers involved in repair and track work, receiving a signal in the form of vibration and light warning. In this case, the bracelets are additionally equipped with an alarming feedback button designed to generate alarms.

In the production of construction and repair work on the railway infrastructure, a number of track machines are used, that is, special units of rolling stock. Such track machines include, in particular:

- straightening, tamping and finishing track equipment;

- straightening-tamping-straightening track equipment, including for turnouts;

- crushed stone-cleaning track equipment, including for turnouts;

- stacking cranes;

- machines for ballast stabilization;

- motor platforms.

However, in the known method RU 2701267, track machines are not used to notify workers in the course of repair and track work.

The closest to the proposed method is a method of alerting workers on railway tracks using a collective portable signaling device (KPS) (RU 2655566 C1, publ. 05/28/2018), which consists in the fact that before starting work on the foot of the rail of the railway track on both sides of the borders work sites at a given distance are installed sensors for detecting rolling stock, each of which is equipped with a radio station, and at a given distance on both sides of the boundaries of the work site near the track being repaired, portable fencing devices are installed, made in the form of radio-controlled signal fencing devices, and at the work site - collective portable signaling device (KPS), which provides interaction via radio channel with radio stations of rolling stock detection sensors and signal radio-controlled fencing devices, KPS automatically transmits signals that activate the operation of rolling stock detection sensors, which, if absent, and rolling stock generate control signals, and when a rolling stock is detected, alert signals and transmit them to the CPS, which automatically reproduces them in the form of the corresponding tonal and optical control signals and warning signals, and in the absence of control signals, turns on the alarm and informs about failure of a specific sensor for detecting a rolling stock, and in the presence of traffic obstacles at the work site, as well as in their absence, by means of the KPS in the manual mode, an appropriate control signal is set, which is transmitted over the radio channel to signal radio-controlled fencing devices to form a prohibiting indication or a permitting indication, while radio-controlled signal fencing devices are made with the ability to monitor signal readings with the subsequent transmission of the monitoring results via a radio channel to the KPS, which automatically compares them with a given control signal red and, if they match, generates an optical signal confirming the readings of each radio-controlled fencing alarm device, and if they do not match, it turns on the alarm in the form of the corresponding optical and tone alarm signals. The KPS is designed to work as part of a rolling stock approach warning system, including, inter alia, rolling stock proximity sensors, radio-controlled portable signaling devices, and collective portable sirens. To broadcast an alert over a large area or in noisy conditions, it is required to transmit an alert signal from the KPS to a collective portable siren (KPOM) installed on the track machine, which broadcasts the alert through external powerful loudspeakers.

The technical problem solved by the invention is to create a method of warning about the approach of rolling stock using a system that is located on a track machine and can work both in an autonomous mode, performing the function of an independent warning system and without requiring external additional collective sirens, and in group mode as part of the warning system about the approach of rolling stock, performing the function of only a collective portable siren, while reducing the deployment period of the warning system for workers during repair and track work due to the location (at the storage / transportation place) of the units and blocks of this system on track machines.

To solve this technical problem, a method of alerting workers on railway tracks about the approach of rolling stock is proposed, which consists in the fact that a warning system is located at the work site, including a control controller, a transceiver, a radio station, at least one loudspeaker and an optical emitter, a system using a transceiver receives control signals from the rolling stock detection sensors and, when rolling stock is detected, alert signals and reproduces the received signals in the form of corresponding audio and optical control signals, according to which the warning system (SOMP) is located on the track machine, while the SOMP additionally includes a mode switch, with with the help of which, when the SOMP is part of another warning system about the approach of rolling stock, the SOMP is switched to the operation mode of the collective portable siren, while the SOMP receives control signals and warning signals from the collective a portable signaling device, which is part of another system, and reproduces the received signals in the form of corresponding audio and optical control signals and warning signals.

The drawing shows a block diagram of a warning system about the approach of a railway rolling stock and fencing of the site of work of the SOMP, which implements the proposed method.

The drawing uses the following digital designations: 1 - transceiver - removable radio modem, 2 - system unit, 3 - channel switch, 4 - control controller, 5 - key switch, 6 - power supply, 7 - optical emitter, 8 - amplifier, 9 - loudspeakers, 10 - control microphone, 11 - loudspeaker control unit, 12 - archive, 13 - radio station, 14 - PTT, 15 - panic button, 16 - control and indication panel, 17 - GLONASS / GPS receiver, 18 - interface with external systems, 19 - mode switch.

The alarm system includes a power supply unit 6, a system unit 2, a 3-channel switch, alarm buttons 15, a control and display panel 16, an interface 18 for interfacing with external systems, a push-button 14, a GLONASS / GPS receiver 17, loudspeakers 9, a control microphone 10 and optical emitter 7. Power supply unit 6 is configured to generate supply voltages for all units and nodes that make up the notification system.

The system unit 2 includes a transceiver, preferably a removable radio modem 1, a radio station 13, a key switch 5, an amplifier 8 and a control controller 4, which includes an archive 12 and a loudspeaker control unit 11. In this case, the inputs and outputs of the removable radio modem 1 and the radio station 13 are connected to the corresponding outputs and inputs of the control controller 4. The output of the key switch 5 is connected to one of the inputs of the control controller 4. The output of the control controller 4 is connected to the input of the amplifier 8.

Tangenta 14 (from French "tangent" - tangent) is a switch that disconnects the control controller 4 from the loudspeakers 9 to be able to conduct radio communications through the radio station 13 or, when communicating between the control controller 4 and the loudspeakers 9, to conduct a loud-speaking voice announcement. In this case, the inputs of the loudspeakers 9 are connected to the output of the amplifier 8, and the control outputs of the loudspeakers 9 are connected to the loudspeaker control unit 11, which is part of the control controller 4.

The input and output of the control and indication panel 16 are connected to the corresponding output and input of the control controller 4. The control and indication panel 16 contains an LCD display.

The outputs of the 3-channel switch, alarm buttons 15, interface 18 for interfacing with external systems, GLONASS / GPS receiver and control microphone 10 are connected to the corresponding inputs of the control controller 4.

The input of the optical emitter 7 is connected to the output of the control controller 4.

The switch 19 of the operating modes of the system is connected to the corresponding input of the control controller 4.

To accomplish its notification tasks, the claimed system installed on the track machine is interfaced with other warning systems or with individual devices that are part of these systems. Such an interface is provided using a removable radio modem 1, which is part of the system unit 2. In this case, the system unit 2 performs operations that implement the requirements for alerting workers in the area of construction and repair of railway infrastructure. The performance of these operations depends on the control signals generated by the units and nodes that are not part of the system unit 2.

To quickly switch the operating frequency of the removable radio modem 1, a channel 3 switch is used, which is not part of the system unit 2. The channel 3 switch generates signals to the control controller 4, with the help of which the control controller 4 sets one of the pre-programmed frequencies of the removable radio modem 1.

Turning on and off the claimed warning system is carried out using the key switch 5 by a trusted person who has the right to turn it on and off, for example, such a trusted person may be the head who controls the functioning of the warning system.

The supply voltage for the blocks and nodes of the claimed warning system is generated by the power supply unit 6.

The notification method is carried out as follows.

After turning on the warning system (SOMP), control or emergency radio signals from rolling stock detection sensors and from radio-controlled portable signaling devices of the fence are sent to the control controller 4 through the removable radio modem 1. The sources of these signals are not related to the railway vehicle approach warning system under consideration. They can be both autonomous and part of other railway warning systems. However, the control controller 4 recognizes these signals coming to it through the removable radio modem 1, taking into account the channel signals coming to the control controller 4 from the channel 3 switch.

SOMP is installed on a permanent basis on the track vehicle and is powered from the on-board network. Detection sensors, radio-controlled portable fence signaling devices (RPSO) and repeaters are located in special storage / transportation places on the track machine. If it is necessary to carry out work with the fencing of the work site, responsible workers, moving on the track machine, arrange the fencing equipment at a certain distance from the work site. Detection sensors at a distance of 2-2.3 km, radio-controlled portable signaling devices - 1-1.7 km.

Each RPSO reproduces enabling or disabling indications according to the control commands transmitted manually by the work manager from the SOMP. When the sensors detect the rolling stock and the presence of obstacles to movement at the work site, the manager, using the control elements on the control and display panel 16, sets the appropriate control signal and transmits it by radio to the RPSO to form and turn on the prohibiting indication, which requires the train to stop at the border of the work site ... If there are no obstacles to traffic at the work site, the SOMP transmits the control signal RPSO by radio channel to form and turn on the permitting indication that allows the train to move at a set speed.

In the position of the mode switch 19, the "stand-alone" control controller 4 periodically generates a monitoring package for transmission through a removable radio modem 1 to external units, signal sources - rolling stock detection sensors, radio-controlled portable signaling devices, repeaters, a remote control panel - which, having received the package monitoring form a packet of sending the state and send back to the SOMP. The status message packet received through the removable radio modem 1 is analyzed in the control controller 4 and the display panel 16 displays letter designations about the current state of these external units.

In the position of the mode switch 19, the “group” control controller 4 stops generating monitoring messages and analyzing the status messages. In this case, SOPM performs the functions of a collective portable siren similar to the KPOM from the prototype, namely, it expects the monitoring dispatch from the collective portable KPS signaling device of another warning system already operating at the work site and responds with a status message, thereby registering as a collective portable KPOM siren. When receiving an alert signal from the KPS of another system, the control controller 4 through the amplifier 8 broadcasts the alert signal through the loudspeakers 9.

Depending on the control or alarm signals received by the control controller 4, the controllable controller 4 turns on light control or alarm signals on the optical emitter 7, as well as warning signals about the approach of the rolling stock. In addition, the controlled controller 4 through the amplifier 8 transmits a control signal to the loudspeakers 9, which generate audible control or alarm signals.

These sound signals are converted into an electrical form by means of the control microphone 10 and transmitted to the control controller 4. In addition, the current consumption is recorded in each of the loudspeakers 9. This data goes to the system unit 2 - to the inputs of the loudspeaker control unit 11, which is directly part of the control controller 4.

In the control controller 4, the contents of the loudspeaker control unit 11 are analyzed, supplemented by the output signals of the control microphone 10. As a result of this analysis, the failed loudspeakers 9 are found (in terms of short circuit or open circuit), and the presence of an unacceptably loud or too weak sound is established.

Such shortcomings of the loudspeakers 9 are recorded in the current operation of the optical emitter 10, for example, in the form of a special blinking, and are noted in the archive 12, which is part of the control controller 4. The manager who controls the operation of the notification system must in this case decide to temporarily disable one or another loudspeaker 9 for its further replacement or repair.

Using the control controller 4, the radio station 13 connected to it makes it possible to provide radio communication of the head, who controls the operation of the warning system, with other participants in the work on the railway tracks, for example, with the foreman of the track workers, with other managers, with dispatchers, with vehicle drivers.

Tangenta 14 (receiving and calling device), equipped with special buttons, provides tone calls to the radio network. Through the PTT 14, communication is carried out with the loudspeakers 9, which allows, if necessary, to sound the received radio messages.

The manager who controls the operation of the warning system can carry out direct loud broadcasting through the push-button 14 and loudspeakers 9, which may be needed, for example, to control the actions of crews of road workers.

At the disposal of the Manager, who controls the operation of the warning system, there is one or several panic buttons 15 connected directly to the control controller 4. They are located with maximum convenience for the above manager, not only on the system unit, but also, for example, on the machine body for access from the ground. When you press any of them, an alarm is triggered (or one of the possible alarms, if there are several types of such alarms). Such an alarm can be a simulation of an alarm situation to verify that workers are acting correctly in an alarm state. When the alarm is turned on, the sound signals of the loudspeakers 9, the signals of the optical emitter 6 are turned on.

It should be noted that a certain number of panic buttons 15 should be at the disposal of other participants in the construction and repair of railway infrastructure (such panic buttons are not shown in the drawing). Pressing any of them should indicate the occurrence of a real alarming or emergency situation, to which the Manager should respond appropriately.

With the help of the same radio modem 1, the head supervising the functioning of the warning system can control the operation of external devices of the warning system. In this case, using the controls (buttons and toggle switches) of the control and display panel 16, the manager can select an external device (for example, a semaphore) and start checking it. The data of this check will be transmitted through the removable radio modem 1 and the control controller 4 to the control and display panel 16, visually reflected on the LCD of this panel. The result of monitoring the selected external device must be noted in the archive 12, as well as other events occurring during the operation of the notification system. Such events can be, for example, the passage of a rolling stock through the zone of repair work or a failure of any block of the warning system. When the GLONASS / GPS receiver 17 is connected, the coordinates and exact time of each event marked in the archive 12 are recorded in the archive 12.

Archive 12 can be read using external software by connecting interface 18 for interfacing with external systems to the control controller 4.

On the track machine, in which the SOMP is installed on an ongoing basis, there are systems that control the parameters of the machine (fuel, speed, etc.), for example, the Automated Control System for the Operation of Special Rolling Stock (AS KRPS). Through the interface 18 for interfacing with external systems, it is possible to transfer the parameters of the operation of the MSS (on / off, siren, train detection, etc.)

The considered warning system about the approach of railway rolling stock can be included as part of the automated control systems of the railway infrastructure. When enabled, interface 18 for interfacing with external devices can be used to transmit information about the state of the notification system and past events, as well as to receive control commands by the notification system. Such introduction of the warning system into the automated control systems of the railway infrastructure can be carried out using the method of remote communication.

Consideration of the operation of the claimed warning system about the approach of railway rolling stock shows that its functioning can be ensured when this warning system is installed on the track machine. This increases mobility when placing the warning system blocks. Reduced labor and time costs. The variability of using the SOMP increases both as the main warning unit in an autonomous mode and as an auxiliary one as part of another warning system as a collective siren in group mode. The movement of the track machine does not interfere with the functioning of the warning system. That is, this system does not require any deployment period either directly in the area of repair work or in areas close to this area. The claimed notification system is ready for operation at any time after turning on the key switch 5.

Claims (1)

A method of alerting workers on railway tracks about the approach of rolling stock, which consists in the fact that a warning system is located at the place of work, including a control controller, a transceiver, a radio station, at least one loudspeaker and an optical emitter, the system, using a transceiver, receives from rolling stock detection sensors control signals and upon detection of rolling stock - warning signals and reproduces the received signals in the form of corresponding audio and optical control signals, characterized in that the warning system (SOMP) is located on the track machine, while the SOMP additionally includes a mode switch, with the help of which, when SOMP as part of another warning system about the approach of a rolling stock transfer the SOMP to the operation mode of a collective portable siren, while the SOMP receives control signals and warning signals from a collective portable signaling device that is part of another system, and reproduces the received signals in the form of corresponding audible and optical tell-tales and alarms.

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