RU2405701C1 - System for integrated digital/analogue railway radio communication - Google Patents

Abstract

FIELD: physics, communications.

SUBSTANCE: invention relates to telecommunication equipment and can be used on railway transport for technical radio communication and radio communication of workers organising movement of trains. The system for integrated digital/analogue railway radio communication has mobile radio station (1), dispatcher control panels (2), base radio stations (3), a switching unit (4), a transcoder (5) and a base station controller (6), a visiting (7) and a home (8) location recorder, an equipment identification unit (9), a computer (10) for an automated workstation for a radio communication operator. The system also has control panels for station duty officers (11), primary multiplexers (12), a first EI/Ethernet gateway (13), a radio station position server (14), stationary radio stations with digital interfaces (15), a second (16) and a third (17) EI/Ethernet gateway, a real-time technical communication control station (18), real-time technical communication execution centres (19), stationary radio stations (20) with an analogue interface, a unit of intercommunication devices for station duty officers (21).

EFFECT: meeting requirements for management engineering used on railway transport, new possibilities for an integrated system, as well as efficient control of a communication network and design of a modern system for its operation.

3 cl, 1 dwg

Description

The invention relates to techniques for telecommunications, mainly digital communications, and can find application in railway transport for the organization of technological radio communications and radio communications of workers organizing train movements.

A known technological radio communication system for digital combined linear channels described in the method of dispatch control in railway transport (patent RU No. 2158691, B61L 27/04, 2000), comprising a central communication device (communication control station), communication processing stations (stationary radio stations) ), interconnected by an annular fiber optic communication channel (lower level ring), and locomotive radios. The disadvantage of this technological radio communication system is the irrational use of communication channels due to the fact that they are permanently assigned to these subscribers and cannot be used by other subscribers.

A device for combined radio communication and radio navigation in railway transport (patent RU No. 2108252, B61L 25/02, 1996), in which in the pauses between messages in the dispatch transmitter serves a request video pulse navigation signal, which modulate the high-frequency oscillations of the dispatch transmitter, modulated signals are received and demodulate with a locomotive receiver. The resulting video signal is fed into the locomotive transmitter and modulated by it the high-frequency oscillations of the locomotive transmitter. The modulated signals are received and demodulated by the control receiver, fix the delay of the response video pulse navigation signal relative to the request. At the control room, one of the outputs has a video generator connected to the transmitter input, the other input of which is connected to the first input of the range and speed meter of the locomotive, the second input of the meter is connected through the video amplifier to the output of the receiver, and a switch is installed between the receiver and the transmitter on the locomotive. The disadvantage of this device is that when combined in a single channel of radio communication and radio navigation, the reliability and quality of radio communication deteriorates.

A device for transmitting information during shunting at a railway station (patent RU No. 2179518, B61L 27/04, 1999), containing radio complexes of locomotive drivers, train compilers and station duty officers, a driver radio system includes a transceiver associated with channel occupancy monitoring units communications, the train compiler radio complex is equipped with electronic switches associated with the transceiver control inputs. The radio complex of the station duty officer is equipped with a transceiver operating mode control unit. The disadvantage of this device is that it does not provide effective management of the communication network and the creation of a modern system for its operation.

A known technological radio communication system for digital combined linear channels described in the method of dispatch control in railway transport (patent RU No. 2158691, B61L 27/04, 2000), comprising a central communication device (communication control station), communication processing stations (stationary radio stations) ), interconnected by an annular fiber optic communication channel (lower level ring), and locomotive radios. The disadvantage of this technological radio communication system is the irrational use of communication channels due to the fact that they are permanently assigned to these subscribers and cannot be used by other subscribers, regardless of whether the communication channel is busy or not.

The closest technical solution is the technological radio communications device (Prince A. AN “Digital Cellular Communication Systems”, Berlin, Moscow: Ecotrends, 2007), which contains mobile radio stations, dispatcher control panels, base radio stations connected according to the “star” scheme "," Ring "or a mixed circuit, series-connected switching unit, transcoder and base station controller, the outputs of which are connected to the inputs of the base radio stations, series-connected business and home location registers, the second input d is connected to output equipment identification unit, and first and second outputs coupled to first inputs, respectively, the visited location register and a switching unit, a second input coupled to an output of the computing device electronically workstation radio operator. The disadvantage of this technological radio communication device is the lack of integration of new and existing radio communication systems in order to meet the requirements of technological processes for controlling the movement of trains and to ensure reliable radio communication for all train radio communication subscribers - train dispatchers, station attendants, drivers, etc. The existing practice of introducing digital radio communication systems on Railways shows that the construction of the infrastructure of the GSM-R standard system and equipment of rolling stock, attributed to locomotive and motorcar depots located on specific sections of railways, can be completed within 2-3 years. However, the equipped sections are not isolated, they may be contacted by rolling stock not equipped with the radio facilities of the GSM-R system. In addition, part of the control areas may have branches that are not planned to be equipped with new digital radio communication systems.

The essence of the claimed system is a combination of essential features sufficient to achieve the technical result provided by the proposed system.

The technical result of the proposed technical solution is that when using the integrated digital-analogue railway radio communication system, the integration of new and existing radio communication systems is provided in order to meet the requirements of technological processes for controlling the movement of trains and ensure reliable radio communication for all train radio communication subscribers - train dispatchers on duty at stations, drivers, etc., the implementation of new features provided by the integrated system, as well as on Effective management of the communication network and the creation of a modern system for its operation are ensured.

This is achieved by the fact that the integrated digital-analog railway radio communication system contains mobile radios, dispatcher control panels, radio base stations connected in a star or ring pattern, a switching unit, a transcoder and a base station controller connected in series, the outputs of which are connected to the inputs of the base radio stations sequentially connected business and home location registers, the second input of which is connected to the output of the equipment identification unit, and the first and second outputs The channels are connected to the first inputs, respectively, of the business location register and switching unit, the second input of which is connected to the output of the electronic computing device of the workstation of the radio operator, as well as the control panels of the station attendants, each of which is connected to the corresponding primary multiplexer, which are connected in the ring and through the first El / Ethernet gateway - with a local data network that is connected to the location server of the radio stations, with the control panels of the dispatcher c, with stationary radio stations with digital interfaces, with the third input of the switching unit through the second El / Ethernet gateway, and through the third El / Ethernet gateway - with the operational-technological communication control station, to which the operational-technological communication executive stations are connected, to each of which is connected to a stationary radio station with an analogue interface, to which a block of intercoms for the station duty officer is connected.

The control panel for dispatchers can be made in the form of a series-connected block for registering the addresses of all stationary radio stations, a block for registering addresses of mobile radio stations and a block of intercoms, and the control panel for a station duty officer - in the form of series-connected block for registering addresses of the nearest stationary radio stations, a block for registering addresses of mobile radio stations and block intercoms.

Comparison of the claimed technical solution with the prototype made it possible to establish compliance with its criterion of "novelty", since a similar technical solution is unknown from technical sources.

The proposed system is industrially applicable, since it can be implemented by existing technical means.

Thus, the proposed technical solution meets the established conditions of patentability of the invention.

No other known technical solutions for a similar purpose with similar significant features were found.

The drawing shows the proposed integrated network of technological radio communications of railway transport.

The integrated technological radio communication network of railway transport contains mobile radio stations 1, dispatcher control panels 2, radio base stations 3 connected in a star or ring pattern or in a mixed circuit (combined), switching block 4 connected in series, transcoder 5 and base controller 6 stations, the outputs of which are connected to the inputs of the base radios 3, the business registers 7 and the home 8 location registers are connected in series, the second input of which is connected to the output of the identification unit 9 equipment, and the first and second outputs are connected to the first inputs, respectively, of the business location register 7 and the switching unit 4, the second input of which is connected to the output of the electronic computing device 10 of the workstation of the radio communication operator, remote controls 11 for station duty officers are introduced, each of which is connected to the corresponding primary multiplexer 12, which are connected in a ring and through the first gateway 13 El / Ethernet - with a local data network that is connected to the server 14 location radio stations, with controllers 2 control panels, with stationary 15 radio stations with digital interfaces, with the third input of switching unit 4 through a second gateway 16 El / Ethernet, and through a third gateway 17 El / Ethernet - with a control station 18 for operational-technological communication, to which executive stations 19 for operational-technological communication are connected, to each of which a stationary radio station 20 with an analog interface is connected, to which a block 21 of intercoms for the station duty officer is connected. The dispatcher control panel 2 is made in the form of a series-connected unit 22 for registering the addresses of all stationary radio stations, a unit 23 for registering addresses of mobile radio stations and a unit 24 for intercoms. The control panel 11 of the station duty officer is designed as a series-connected unit 25 for registering the addresses of the nearest stationary radio stations, a unit 26 for registering the addresses of mobile radio stations and a unit 27 for intercoms.

The system of integrated digital-analogue railway radio communication works as follows.

The linear channels of the train digital-to-analog radio communication and the common signaling channel (ACS) of the operational-technological communication are received from the OTS control station 18 via the Е1 interface through the 17 El / Ethernet gateway to the local area network with packet switching via IP protocol, to which 2 controllers' consoles are connected, a proxy server, the output of mobile switching unit 4 (MSC) of the GSM-R system and, through the El / Ethernet gateway 16, the channel of the primary multiplexers 12 used to connect the control panels 11 for stations on the GSM-R system, the OBTS and RMTS networks.

Information-logical interaction of objects connected to the local area network IP with the console 2 of the dispatcher and those on duty at stations 11 is carried out using the SIP protocol.

With this integration, all the necessary communications between dispatchers and station attendants in GSM-R systems and digital-analog train radio communications are provided.

Given the current trend in the creation of intercoms and control devices based on computer technology, it is advisable to integrate the digital-analog radio and radio communication systems according to the GSM-R standard on the intercom-control panel of dispatcher 2 when building a console based on a computer with a monitor using Touch- technology Screen using a separate screen form (page) for each type of communication. Screen forms of the corresponding types of communication should be depicted in the form of button information and control panels with the designated names of subscribers (objects).

On each page there should be a window with constant information for all types of communications organized using the remote control 2 for the corresponding workstation.

So, for example, for the console 2 of the train dispatcher, at least the following screen forms should be formed:

- train radio communication in the GSM-R system;

- train radio communication in a digital-analog system;

- communication with the heads of repair units;

- Communication with OBTS subscribers.

On each page there should also be a window with all the function keys necessary for this type of communication (sending ringing signals, setting the subscriber to standby, hang up, etc.).

The inclusion of a specific type of communication is carried out by briefly touching the corresponding key, which is painted in a certain color (for example, green), signaling to the user about the on state of the information-control panel of the desired type of communication.

Making a call to establish the appropriate connection, disconnecting and other functions are carried out by touching the corresponding keys of the information-control field and the service window of this type of communication.

Switching to another type of communication is carried out by the user by touching another key of the service window of the communication types.

At the same time, the previous page goes blank on the monitor and a new one corresponding to the pressed key is turned on.

When a call from a subscriber (object) is located on a page that is currently closed, the key of this type of communication in the service information window of communication types lights up in a blinking mode accompanied by an acoustic signal.

In this case, to connect to the caller, the user must press this key, and then the key that displays the caller.

Switching to the page on which the call was received is possible both with the violation of the connections established on the previous page, and with their preservation, with the possibility of returning to interrupted conversations.

The console is equipped with an intercom 24, containing a handset with a tangent, a speaker with a manual volume control and a remote electret microphone.

The hardware-software complex, on the basis of which the GSM-R system is built, makes it possible to create computer consoles with high ergonomic indicators, providing the ability to quickly connect to the desired subscriber (object), which is especially relevant in emergency situations.

The registration of mobile subscribers envisaged in the GSM-R system, interacting with the corresponding base station 3, with the transfer of the conditional subscriber number and the number of the base station 3 to the mobile switching unit 4, to which the control panels of 2 dispatchers and station duty 11 are connected, makes it possible to obtain a graphic images on the screen form of the console of train locomotives with indicated train numbers in the zones of specific base stations.

When moving a moving object (locomotive) in the communication zone with another base station 3, the image of the locomotive disappears in the zone of the previous base station and appears in the zone of the base station 3 through which communication is established.

In addition to communication with train locomotive drivers, the dispatcher has the opportunity to call the train foreman and transmit a message to passengers on the loud-speaking train network.

Similar remotes can be provided to the energy dispatcher and locomotive dispatcher.

When using computer remotes, the display of each dispatcher displays moving objects busy with negotiations with other dispatchers.

On the console 2 of the dispatcher, an entrance to the GSM network can be provided for communication with locomotive drivers. For this purpose, the corresponding page (screen form) must be formed, and the GSM gateway 16 must be connected to the IP network of the integration node.

It is possible to organize other pages (screen forms) for the dispatcher to enter the park communications network, information on the movement of moving objects, etc.

To implement the function “Emergency train stop”, a separate screen form must be highlighted.

The control panels 11 of the station duty personnel are connected to the mobile switching unit 4, through which they are connected to the base stations 3 and, as a result, to the control panels of the locomotive drivers using primary multiplexers 12, interconnected by a primary circuit with primary digital channels (E1).

To ensure automatic transition to the bypass path of the ring in the primary multiplexer 12 provides the following:

- channel B from each console 11 is connected in each multiplexer 12 to the corresponding channel of the BCC through a digital adder, which allows the console to work in both directions;

- to transmit signals of information and logical interaction of the console with the mobile switching unit 4 when working in the main or bypass direction of the ring, a distributor is used, which provides signal transmission in both directions at two channel intervals;

- to exclude self-excitation in the ring circuit, the channels of the BCC of the main communication direction are disconnected in one of the multiplexers 12 (installed, as a rule, in the control center of the railway) with the channels forming the bypass path of the ring. The combination of the channels of the main and bypass directions in case of communication failure in the main direction of the ring is carried out by a control signaling device included in the multiplexer 12, which also transmits relevant information to the SMA and ECMA systems;

- the pairing of the primary multiplexer 12 with the local IP network is carried out using an external or included in the multiplexer gateway 13 interface El / Ethernet 10/100;

- pairing the console 11 of the station duty with the primary multiplexer is organized using the main BRI (2B + D) access via So or Uko interface with the protocol of the console manufacturer.

- as the protocol of information exchange on the D channel in the linear path, the standard LAP-D protocol can be used.

When using computer technology, the console 11 of the station attendant should be built similarly to console 2 of the dispatcher.

It is possible to use a simpler console for a station duty officer, which is a digital telephone, containing group call keys for locomotive drivers, a keypad for dialing the number of the called locomotive for an individual call, and other function keys and indicators.

Negotiations of a station duty officer with train locomotive drivers in a digital-analog train radio communication network in this embodiment are carried out using a standard chipboard console connected directly to analog radio communication.

This option of organizing the communication of the station duty officer is the most reliable, because in case of communication failure in one of the networks, the other remains valid.

However, the use of a computer control panel with a screen display showing the presence of specific trains and repair units registered at the base transceivers of its and neighboring railway stations significantly increases the speed of establishing a connection between the station duty officer and locomotive drivers, which has a positive effect on ensuring traffic safety.

In addition, the employment of the driver of a particular locomotive displayed on the computer screen in negotiations with the dispatcher directs the station duty officer to comply with the relevant negotiation schedule.

It is practically impossible to establish a strict sequence of negotiations between the dispatcher and the station duty officer with a specific driver, especially in emergency situations. To coordinate the actions of the dispatcher and the station attendant in these cases, train dispatch telephone communications should be used.

It is possible to build a computer console for the station attendant with the formation in it, in addition to the screen form of communication with train locomotive drivers in the GSM-R network, also a screen form showing the organization of communication with train locomotive drivers in the analog-digital train radio communication network.

In this case, the interface for connecting the remote control panel 21 of the stationary radio station should be connected via an appropriate gateway to the local IP network, to which the computer panel 11 of the GSM-R network chipboard and the input of the linear set of the primary multiplexer 12 should also be connected. This option may be appropriate if there is an IP technological connection at the local network station.

Train radio communication should be organized between train locomotive drivers, wagon trains, special self-propelled rolling stock and train dispatchers on duty at stations, depots and crossings; drivers of oncoming and following trains, other subscribers equipped with wearable and transportable radio equipment.

In addition, it is advisable to ensure the communication of such subscribers as:

- energy and locomotive dispatcher;

- dispatcher of the situation center;

- dispatching apparatus of repair services.

The following should be used as subscriber devices of stationary subscribers:

- specialized control panels that are part of the dispatch system and are connected via communication channels (wired console);

- subscriber stationary radio stations with specialized control panels (radio remote control). To ensure the required reliability indicators of the system and at the same time optimize the subscriber load, it is advisable for subscribers of various categories to provide various types of subscriber devices depending on the functions they perform. Subscribers performing the most important functions of traffic control, such as train, energy and locomotive dispatchers, station attendants and some other categories should be equipped with control panels connected by specially organized wired channels to the dispatch system. Other stationary subscribers can be provided with the so-called radio remote control, which is a subscriber station with a specialized control panel.

When designing a digital radio communication system of the GSM-R standard, the expediency of equipping subscribers with various types of radio equipment should be considered:

- the dispatching apparatus and station attendants can use wearable radio stations (LV) when they are out of the office; it is possible to use the call forwarding mode from the control panels to these radio stations;

- Engineers can use wearable radio stations when leaving the cab or when the locomotive is in the idle cab (the control panel in the idle cab is off and can only be used for conversations between cabs);

- the head of the train can use the wearable radio station when moving inside the train, on platforms, on the territory of stations.

To organize data transmission channels between subscribers and devices of the GSM-R system, two modes must be used:

- short message mode;

- circuit switched data transmission mode.

The short message mode assumes that the content of these messages is pre-entered into the software of the radio station or the control panel (dispatch system). The initiative for sending short messages may belong to the dispatch subscriber, the station duty officer, the engineer. The most popular may be the transfer of the “Train Stop” command, which should be formed by means of the control center of the DSC and the dispatch system. The use of this mode is likely to be in demand in the period until the site is fully equipped with a traffic control system using a radio channel. Upon receipt of the locomotive radio station, this command should trigger the braking devices on the locomotive (that is, when developing a locomotive radio station designed to operate in an integrated system, it must be possible to pair it with the locomotive motion control devices).

A positive result from the proposed technical solution is that when using the integrated digital-analogue railway radio communication system, the integration of new and existing radio communication systems is provided in order to meet the requirements of technological processes for controlling the movement of trains and ensure reliable radio communication for all train radio communication subscribers - train dispatchers on duty at stations , machinists, etc., the implementation of new features of the integrated system, and also provides I effective network management and creation of a modern system of its operation.

Claims (3)

1. An integrated digital-analogue railway radio communication system comprising mobile radio stations, dispatcher control panels, radio base stations connected in a star or ring pattern, a switching unit, a transcoder and a base station controller connected in series, the outputs of which are connected to the inputs of the radio base stations, in series connected business and home location registers, the second input of which is connected to the output of the equipment identification unit, and the first and second outputs are connected to the first the inputs of the business location register and switching unit, the second input of which is connected to the output of the electronic computing device of the workstation of the radio operator, characterized in that the control panels of station attendants are introduced, each of which is connected to the corresponding primary multiplexer, which are connected in a ring and through the first El / Ethernet gateway - with a local data network that is connected to the location server of the radio stations, with the control panels of the dispatcher s, with stationary radio stations with digital interfaces, with the third input of the switching unit through the second El / Ethernet gateway and through the third El / Ethernet gateway - with the operational-technological communication control station, to which the operational-technological communication executive stations are connected, to each of which a stationary radio station with an analog interface is connected, to which a block of intercoms for the station duty officer is connected. 2. The system according to claim 1, characterized in that the control panel of the dispatchers is made in the form of a series-connected address registration unit for all stationary radio stations, an address registration unit for mobile radio stations and an intercom unit. 3. The system according to any one of claims 1 or 2, characterized in that the control panel of the station duty officer is made in the form of a series-connected address registration unit of the nearest stationary radio stations, an address registration unit of mobile radio stations and an intercom unit.