RU2546143C1 - Digital radio communication system on railway transport - Google Patents

Abstract

FIELD: radio engineering, communication.SUBSTANCE: digital radio communication on railway transport comprises a radio receiver and hardware-software of the automated workstation of the radio communication electrical officer, connected to a digital IP network, and, mounted on each locomotive, a locomotive radio station with a receiving-transmitting device and a talk-back panel; the radio station of each locomotive and portable radio stations are configured to operate according to the DMR standard. The IP network is connected to repeaters mounted at each station and talk-back panels of process managers at each locomotive are provided with safety devices. Each locomotive radio station further includes a unit for input/output of information of first and second timeslots, a talk-back panel of the locomotive driver, a safety device, a unit for generating diagnostic data of the state of the locomotive, a receiving-transmitting device, a repeater with a radio receiver which enables to separate information according to areas of responsibility of process managers at the station, talk-back panels of which are made with a terminal in the form of an all-in-one machine with a Touch-Screen function and capable of switching screen forms.EFFECT: high quality of voice communication and broader functional capabilities of the system.5 cl, 1 dwg

Description

The invention relates to telecommunication technology, in particular to technological digital radio communication systems, and may find application for the organization of digital station radio communications in railway transport.

A control system for transmitting messages by train radio communication is known, comprising a train dispatcher workstation at a central dispatch control station, the personal computer of which is connected via a digital communication interface to a fixed radio control station, which is connected to stationary radio stations of intermediate stations via a wire channel of dispatch communication, each of which stationary radio stations through a digital radio channel connected to the airborne radio stations locomotives located in a stable radio communication zone, and the on-board radio station of the locomotive is connected to the on-board control device via the on-board digital communication interface (RU 2432284 C1, B61L 27/04, 10.27.2011).

In the known system on the locomotive, a block for determining the boundaries of the location of the train and a block for generating messages are installed, which are connected via the on-board digital communication interface to the on-board control device, and a message server is installed at the central dispatch control station, which is connected via a digital communication interface to the personal computer of the workstation train dispatcher.

A disadvantage of the known radio communication system is that it does not address issues of improving the functionality of radio communications. The well-known technical solution solves the problem of improving technological discipline in the channel of the train radio communication when transmitting control commands through it from the workstation of the train dispatcher.

A well-known MotoTRBO system developed by Motorola with the addition of the Neocom TRBOnet Enterprise dispatch console with a radio server, to which Motorola MotoTRBO stationary digital radio station is connected via a radio channel for communication with mobile subscribers. When the power is turned on, the MotoTRBO subscriber digital radio station sends an authorization request to the radioserver and registers in the TRBOnet network. For registered subscribers in the TRBOnet network, the dispatcher will be able to access the main functions of the system - individual and group calls, sending text messages, using the built-in telemetry of digital radio stations MotoTRBO, GPS - monitoring subscribers, recording conversations (www.shockufa.ru/motorola/podtrbo.htr, updating file 10/14/2011)

Motorola's MotoTRBO system is based on the DMR standard and is used in a variety of manufacturing processes, including train radio communications.

However, it does not allow to realize the functions necessary for station radio communications, namely the “open” channel operating modes, the ability to transmit voice messages and data simultaneously to one radio station (operation of a locomotive radio station in two slots), the “fallen man” function and simplified chipboard remotes.

The closest technical solution is a digital radio communication system that implements the well-known method of digital train radio communication in railway transport, which contains a regulatory station and stationary radio stations connected by a linear channel, locomotive radio stations, a workstation of a radio communication operator, a stationary device for receiving and transmitting data, a technological server, locomotive device for receiving and transmitting data, intercoms (RU 2463189 C1, B61L27 / 00, 10.10. 2012).

In the known digital communication system, voice signals are transmitted from the dispatcher to the locomotive driver through a linear channel between the control station and the stationary radio station and then through the radio channel between the stationary and locomotive radio stations. At the same time, the train dispatcher’s voice signals are transmitted digitally in the linear channel, and the time-frequency division of channels is carried out, digital data or voice signals of train locomotive drivers are transmitted between the control station and stationary radio stations via an additional digital linear channel, and transmission is carried out at each frequency packets using two time slots with a protective interval between them, while one time slot is used to transmit information of the main linear channel ala, and another time slot is used to transmit information of an additional linear channel, while the information is transmitted in packet form.

However, the known communication system also lacks the functions necessary for the organization of station radio communications.

The problem to which the invention is directed is to create a digital station radio communication system that provides reliable and high-quality communication between process managers at the station, locomotive drivers and process workers at the station, as well as the ability to quickly transfer information to the process managers about the location and condition locomotives and process performers in their area of responsibility.

The technical result consists in improving the quality of voice communications and expanding the functionality of the system.

The technical result is achieved by the fact that in a digital radio communication system in railway transport containing a radio server, control panels of process managers and a hardware-software device of a workstation of a radio communication electromechanics connected to a digital network, a locomotive radio station with a transceiver and an intercom are installed on each locomotive - a remote control, for the organization of station radio communications, the locomotive radio station of each locomotive and wearable radio The stations are designed to operate according to the DMR standard, and use the IP network as a digital network, to which repeaters and call control panels for process managers installed on the station are connected, safety devices are installed on each locomotive, the locomotive radio station additionally includes an information input / output unit the first and second time slots, the input / output of the first time / slot of which is connected to the output / input of the intercom-call console of the locomotive driver, the inputs / outputs of the second time / layer wa - with the outputs / inputs of the safety device and the unit for generating diagnostic data on the status of the locomotive, and the output / input - with the input / output of the transceiver device, connected via a radio channel through an appropriate repeater to the radio server, which provides information sharing between the zones of responsibility of process managers at the station intercom and call panels which are made with the terminal in the form of a monoblock with the Touch-Screen function and with the ability to switch screen forms.

As a safety device, a complex CLUB locomotive safety device (CLUB - U) or a safe BLOC locomotive complex are used.

Wearable radio stations of technological process executives additionally include a “Man down” mode operating unit connected to the input of the transceiver, while the wearable radio station is placed on the artist’s body in a vertical position.

The depot attendant console is included in the IP network.

The diagnostic data generation unit further includes fire alarm, fuel consumption, and locomotive exit sensors from the control zone.

The essence of the proposed technical solution is illustrated by the drawing in figure 1, which shows a structural diagram of an embodiment of a digital radio communication system in railway transport.

Station radio communication is intended for the organization of operational control of technological processes at the station. It provides communication between station employees and includes shunting and hump radio communications, as well as personnel radio communications, which ensures the technological process of train formation at the railway stations, including radio communications at maintenance points and points of commercial inspection of railroad cars, radio communications of railcar lists, etc.

The proposed digital station radio communication system in railway transport contains a radio server 1 and a hardware-software device 2 of a workstation of a radio communication electrician connected to a digital network 3, a locomotive radio station 5 with a transceiver 6 and an intercom-call station 7 installed on each locomotive 4.

At the same time, the locomotive radio station 5 of each locomotive 4 and the wearable 8 radio stations of the process executives are configured to operate according to the DMR standard, and IP network is used as the digital network 3.

Repeaters 9 installed at the station are connected to the IP 3 network, providing radio coverage throughout the station, and 10 call managers and executors of technological processes.

Each locomotive 4 has a safety device 11. The locomotive radio station 5 further includes a unit 12 for input / output of information of the first and second time slots, the input / output of the first time / slot of which is connected to the output / input of the intercom-call console 7 of the locomotive driver 4, and the inputs / outputs of the second time / slot of unit 12 - with the outputs / inputs of the safety device 11 and the unit 13 for generating diagnostic data on the condition of the locomotive, and the output / input with the input / output of the transceiver 6.

The transceiver 6 of the locomotive radio station 5 of each locomotive 4 through the corresponding repeater 9, upon request from the radio server 1, transmits the necessary information through the second slot. On the radio server 1, this information is divided into zones of responsibility of the heads of technological processes at the station and its transfer to the corresponding intercoms 10.

At the same time, call and control panels of 10 process managers at the station are made with a terminal in the form of a monoblock with the “Touch-Screen” function and with the ability to switch screen forms.

As the safety device 11, a complex CLUB locomotive safety device (CLUB-U) or a safe BLOC locomotive complex are used.

Wearable radio stations 8 executors of technological processes, depending on the model, are equipped with an alphanumeric keyboard, a display and a GPS receiver.

When working on the most critical sections of the technological process, the wearable radio stations 8 of the process executors additionally include a Man down mode operating unit 14 connected to the input of the transceiver 15, while the wearable radio station 8 is placed on the executor’s body in a vertical position.

The diagnostic data generation unit 13 further includes fire alarm, fuel consumption, and locomotive exit sensors from the control zone (not shown in FIG.).

The intercom-call desk of the depot attendant is included in the IP 3 network (not shown in FIG. 1).

At station 16 of electric centralization, there are installed 10 remote controllers for a hill officer (DSPG), a shunting dispatcher (10DCS), a station dispatcher (DSC) or an assistant station manager (DSPG), a reception park duty officer (DSPO) and other process managers.

At the same time, the radio server 1, the hardware-software device 2 of the automated workstation of the radio communication electro-mechanic, are also installed at the electric centralization station 16.

At the shunting post 17, the remote control 10 of the departure park duty officer is installed.

As you know, a feature of the DMR standard is the use of TDMA (Time Division Multiple Access) technology for signal transmission, which allows you to organize two logical channels on a single carrier with a channel width of 12.5 kHz on one frequency channel.

In the proposed system, locomotive radio stations 5 and wearable radio stations 8 receive and transmit time-slot information simultaneously at each frequency, with the first time-slot used to receive / transmit voice communications, and the second time-slot to receive / transmit data. Data and voice are transmitted over IP.

The transceiver 6 of the radio station 5 operates in duplex or half duplex modes.

Data transmission from the outputs of the safety block 11 and the block 13 for generating diagnostic data on the condition of the locomotive is carried out in real time, regardless of whether negotiations are ongoing or not.

The security unit 11 generates data including information about the location of the locomotive, its number and other information. Block 13 generates data on the technical condition of the main components of the locomotive, on the fire situation on the locomotive, on the amount of fuel.

Data from the outputs of blocks 11 and 13 enter the transceiver 6 through the block 12 input / output information of the first and second time slots. Block 12 transmits voice information to the input of the transceiver 6 to form the first time / slot, and also transfers data via the RS 232 interface to the corresponding input of the device 6 to form the second time / slot.

The transceiver 6 of each locomotive is turned on for transmission or reception on the second time slot upon request from the radioserver 1, which puts the repeater 9 into transmit or receive mode to ensure the radio channel works with the locomotive radio station 5.

Radioserver 1 carries out the appropriate processing of information, its distribution over the technological sections of the station and its transmission through the IP network 3 to the corresponding consoles 10 process managers. In addition, the radio server 1 records in its random access memory all negotiations and events.

In real time, the proposed system monitors the radio network under the control of an electrician of radio communications, which ensures reliable and correct connections. Transceivers 6 of locomotive radio stations 5, when the signal level is lower than the specified one, generates the corresponding signal, upon receipt of which the radio server 1 gives the command to switch the corresponding repeater 9 to perform the “handover” function.

Remote controls 10 process managers are made on the basis of a computer with a monitor using Touch-Screen technology using a separate screen form (page) for each type of communication. Each console 10 is equipped with an intercom comprising a handset with a tangent, a speaker with a manual volume control and a remote electret microphone (not shown in FIG. 1).

Each screen form displays the type of communication provided on a particular console 10. Each page also shows a window with all the function keys necessary for a given type of communication (sending ringing signals, setting the subscriber to standby, hang up, etc.). The manager engages a specific type of communication by briefly touching the corresponding key, which changes its color, signaling to the user about the on state of the information and control panel of the required type of communication.

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

If you need to quickly familiarize yourself with other technologies or technical equipment at the station, the process manager from his remote 10 has the ability to, by pressing the appropriate buttons through the IP 3 network, request the required screen forms from the 10 other managers to display their technological process on the monitor of your remote.

The on-screen forms of the consoles of 10 process managers within their area of responsibility display with the corresponding symbols the presence of locomotive radio stations 5 and wearable radio stations 8 of the station radio communication system, and within the image of moving objects, its identification number. For example, for a duty officer on a hill, on the monitor of his remote control 10, the DSPGs display the presence of locomotive radio stations 5 and wearable radio stations 8 within the reception park, the hill, and on podgorny routes. For a person on duty at the departure park, on the monitor of his console 10, DSPOs display the presence of locomotive radio stations 5 and wearable radio stations 8 within the departure park, etc.

When negotiating from consoles 10, a group or individual call can be sent.

A group call is activated by touching the finger of the “GROUP CALL” button on the monitor screen of the remote control 10, and after pressing the tangents (pedals), a voice message is transmitted through the microphone to the group of locomotive drivers 4 and work performers in the area of responsibility of the process manager. In this case, information can be transmitted to the console 7 of locomotive drivers 4 within the coverage area of several repeaters 9.

An individual call of the (on-duty) locomotive driver 4 is activated by touching the tab of a moving object with the desired locomotive number on the monitor screen of the remote control 10, and the color of the tab changes. After pressing the tangents of his remote control 10, the process manager through a microphone transmits a message to the remote control 7 of the called driver and then negotiates.

The system also provides an open channel mode, when the head of the technological process (on-duty) presses only the tangent for communication and transmits a message to the desks 7 of the locomotive drivers 4 located in his area of responsibility, and the remotes of the wearable radio stations 14 performers (not shown in Fig. 1 ) This mode is currently used for hill radio communications. All negotiations in the proposed station radio system are conducted on the first time slot.

At critical locations of the technological process, the system performs the functions of monitoring the status of the contractor using a wearable radio station 8 with a block 14 functioning mode "Man Down" - "Fallen man". Wearable radio station 8 is placed in a vertical position. Moving it to a horizontal position means that the owner has fallen. From accidental operations, the transceiver 15 of the radio station 8 transmits a signal generated by the operation of the operation unit 14 of the "Man Down" mode with a time delay of 40 seconds.

When the unit 14 is activated, the signal about the operation of the “Man Down” mode, the transceiver 15 simultaneously transmits with information about the number of the radio station 8 and its location to the remote control 10 of the process manager, and to the remote control 7 of the locomotive radio station 5 when paired with a driver, for example a driver - Compiled by alarm only.

At the same time, information on the status of the locomotive 4 and the executor via repeaters 9 is transmitted through the radio channel to the radio server 1, where it is processed and transmitted over the IP network 3 to the corresponding consoles 10 process managers. On the screen of remotes 10 of each manager information is displayed on the numbers of locomotives 4 located in his area of responsibility, as well as work performers with wearable radio stations 8, their location and condition.

Thus, the use of technical means ensuring the organization of station radio communications according to the DMP standard using the transmission of information from a locomotive radio station through two time slots, allows for high quality voice communications, speed in transmitting data on the condition of the locomotive and process performers, which improves efficiency work station and ensure the safety of work.

Claims (5)

1. A digital radio communication system in railway transport, containing a radio server and a hardware-software device for a workstation of a radio communication electrician, connected to a digital network, a locomotive radio station with a transceiver and an intercom call station installed on each locomotive, characterized in that for organizing station radio communication, the locomotive radio station of each locomotive and wearable radio stations are made with the possibility of working according to the DMR standard, and as a digital the second network uses an IP network, to which repeaters and call desks installed at the stations of process managers are connected, safety devices are installed on each locomotive, the locomotive radio station additionally includes an input / output unit for information of the first and second time slots, input / output of the first time / slot which is connected to the output / input of the intercom-call console of the locomotive driver, the inputs / outputs of the second time / word - with the outputs / inputs of the safety device and agnostic data on the condition of the locomotive, and the output / input is connected to the input / output of the transceiver connected via a radio channel through an appropriate repeater to the radio server, which provides information separation by zones of responsibility of process managers at the station, the call and control panels of which are made with the terminal in the form monoblock with the Touch-Screen function and with the ability to switch screen forms. 2. The digital system according to claim 1, characterized in that as a safety device using a complex locomotive safety device CLUB or a safe locomotive complex BLOCK. 3. A digital system according to any one of claims 1 or 2, characterized in that the wearable radio stations of the process executors additionally include a “Man down” mode operating unit connected to the input of the transceiver, while the wearable radio station is placed on the performer’s body in a vertical position. 4. The digital system according to claim 1, characterized in that the depot attendant console is included in the IP network. 5. The digital system according to claim 1, characterized in that the diagnostic data generation unit further includes sensors for fire alarm, fuel drain and locomotive exit from the control zone.