CN116419182A - Digital wireless train-tuning multimode locomotive radio station and operation communication method thereof - Google Patents
Digital wireless train-tuning multimode locomotive radio station and operation communication method thereof Download PDFInfo
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- H—ELECTRICITY
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
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Abstract
The invention provides a digital wireless train-tuning multimode locomotive radio and an operation communication method thereof, wherein the digital wireless train-tuning multimode locomotive radio consists of a host, a control box unit operation control box unit, a power supply and an antenna feeder; the host mainly comprises a main control unit, a wireless communication unit, a satellite positioning unit, a recording unit, an audio unit and a power supply unit; the control box unit is used for operating the control box unit and comprises a key indicator lamp unit, a display unit, a microphone unit, a loudspeaker unit and a main control unit; communication of radio stations the digital wireless train-tuning multimode locomotive radio station is used for realizing calling and talking functions with operators on duty, portable stations and dispatchers of ground stations; the system is used for realizing the wind pressure information transmission function of the locomotive radio station and the train tail device, realizing the wireless scheduling command information and the wireless train number information transmission operation, and realizing the automatic judgment of the section where the received satellite positioning information is located.
Description
Technical Field
The invention relates to the technical field of locomotive communication, in particular to a digital wireless train-tuning multimode locomotive radio station and an operation communication method thereof.
Background
The integrated digital wireless train dispatching multimode locomotive radio (hereinafter referred to as locomotive radio) is an important component device in a railway wireless dispatching communication system. The locomotive radio station is arranged on the locomotive, and the control box operation terminal is arranged in a locomotive cab. The locomotive radio station can adapt to the whole country long road crossing and running, realizes the wireless voice communication of the big triangle and the small triangle, carries train tail transmission information, wireless checking data transmission of train number and wireless dispatching order information, and simultaneously, a driver can call and talk with a ground station operator, a portable station and a dispatcher through the locomotive radio station.
The digital wireless train-tuning multimode locomotive radio station is based on a 4G/5G high-speed public network mobile communication technology, integrates high-speed public network broadband mobile communication and 400MHz private network narrowband wireless communication, and simultaneously supports the functions of broadband and narrowband wireless voice and digital communication. The public network mobile communication function has the advantages of unlimited communication distance, supporting high-efficiency and high-quality wireless broadband digital and voice communication service functions in the coverage area of the mobile network, low construction cost, high communication confidentiality, strong anti-interference capability and the like. The locomotive radio adopts two wireless communication modes to use simultaneously, and the various working modes are not affected mutually when the equipment works, so that the communication efficiency, the communication safety and the reliability of the locomotive radio are effectively improved while the existing wireless train dispatching communication system is well compatible.
In China, railway transportation occupies a serious position no matter passenger transportation or freight transportation. Along with the rapid development of railway business, the capacity of trains is larger and faster, the capacity is increased, and simultaneously, higher requirements are put forward on the performances such as the working efficiency, the safety, the reliability and the like of railway wireless train-tuning communication equipment. The main expression is as follows: 1) The frequency of dispatching operation of the train running in the interval increases sharply, the difficulty of instruction operation and the risk increase; 2) The train running operation safety operation needs to adopt a series of the service specification makes it much more difficult to identify the security level; 3) The single power supply mode of locomotive equipment has large maintenance investment on equipment; 4) And in the process of traveling among the operators, the portable stations and the schedulers, the command transmission cannot obtain high-precision geographic data. These factors have severely impacted the safety and reliability of the new generation of passenger and cargo sharing trains.
A universal locomotive radio station based on a dual-band combined communication system (patent publication number: CN 108566214A) discloses a universal locomotive radio station based on a dual-band combined communication system, wherein an antenna feeder unit in the universal locomotive radio station is respectively connected with a 450MHz digital communication unit, a 400KHz digital communication unit and a satellite receiving unit; the 450MHz wireless communication unit, the 400KHz wireless communication unit and the satellite receiving unit are connected with the main control unit; the main control unit is respectively connected with the GIS database unit, the recording unit, the interface unit and the operation terminal; the operation terminal is connected with the printing unit. The universal locomotive radio station adopts a dual-band combined communication system of 450MHz frequency band and 400KH frequency band, so that the effective coverage rate of communication is improved; based on the intelligent GIS system application technology, the communication requirements of the universal locomotive radio station for adapting to different working modes of different lines are realized.
A wireless train dispatching station integrated with wide and narrow bands (patent publication number: CN 114039620A) discloses a wireless train dispatching station integrated with wide and narrow bands, which comprises a main control unit, a wireless communication unit, a wired communication unit, an audio unit, a call signaling unit, a TDCS interface unit, a key display unit, a control box unit and a power supply unit; the main control unit is connected with the wireless communication unit through a call signaling unit connection, the wireless communication unit comprises a public network mobile communication channel unit and a 450MHz channel unit, the call signaling unit comprises an audio signal shaping circuit and a sub-audio modem, and the main control unit is connected with the wired communication unit through an FFSK modem and a single audio decoder. The invention adopts the working modes of using two wireless communication modes simultaneously, and the working modes of the equipment are not mutually influenced when in operation, so that the communication efficiency, the communication safety and the reliability of the radio station of the wireless train dispatching station are effectively improved and the system construction cost is reduced while the existing wireless train dispatching communication system is well compatible.
The wide-narrow band integrated digital wireless train-tuning multimode locomotive radio station integrates the wide-band public network wireless mobile communication and the 400MHz digital wireless narrow-band private network communication. On the basis of good compatibility with the existing wireless train-tuning communication system, the device relies on a public network to realize the broadband wireless mobile communication function with high efficiency and high quality. The public network mobile communication function is that a public mobile network is relied on, so that additional deployment of base stations and anti-interference equipment is not needed, the system construction cost is reduced, and the communication efficiency and the communication reliability are improved; the coverage area of the mobile signal is not limited in communication distance, and the voice quality of the call is clear and the voice restoration degree is high; because the public network mobile communication has the communication data encryption function, the situation of divulging the secret caused by the same frequency point is avoided, the communication confidentiality is high, and the safety of wireless communication is effectively improved.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings of the prior art, the present application is directed to a digital wireless train-tuning multimode locomotive radio comprised of a host, a control box unit operation control box unit, a power supply, and an antenna feed; the host mainly comprises a main control unit, a wireless communication unit, a satellite positioning unit, a recording unit, an audio unit and a power supply unit; the control box unit is used for operating the control box unit and comprises a key indicator lamp unit, a display unit, a microphone unit, a loudspeaker unit and a main control unit; the digital wireless train-tuning multimode locomotive radio station is used for realizing the calling and conversation functions with operators on duty, portable stations and dispatchers of a ground station; the system is used for realizing the wind pressure information transmission function of a locomotive radio station and a train tail device, realizing the transmission of wireless scheduling command information and wireless train number information and realizing the automatic judgment of the section where the received satellite positioning information is located; the wireless communication unit comprises a mobile public network channel machine unit and a 400MHz channel machine unit, and is used for bearing public network mobile wireless communication and 400MHz digital wireless communication; the main control unit is a main data processing unit of a locomotive radio station and a processing center of data interaction of each unit, and is responsible for communicating with each component unit according to a specified protocol, analyzing and processing voice and data information transmitted on a communication link, controlling each component unit to work according to functional requirements, and timely responding to a control box unit operation communication request; the audio unit provides an audio transmission channel, the audio channel has the functions of adjusting audio amplitude and controlling channel switch by an electronic switch, and is used for realizing channel control, calling, sub-audio and audio coding and decoding and voice transfer of the 450MHz communication unit, and voice exchange transmission, audio adjustment and switch control of the mobile public network channel machine unit.
Preferably, the satellite positioning unit MCU is constructed by adopting an ARM processor and is provided with a 32M memory chip for storing a GPS positioning line database. The line database can obtain real-time train running schedules through a railway office network management center and carry out necessary arrangement on the schedules.
Preferably, the recording unit MCU is constructed by adopting an ARM processor, the recording and playing chip adopts a UDA1341, the audio is connected with the main control unit in a balanced mode, the audio storage is stored in an N-FLASH mode, and the recording unit MCU is provided with a USB interface for voice data dump and is communicated with the main control unit through a serial port.
Preferably, the power supply unit is powered by a locomotive/motor train unit direct current power supply DC110V, the DC/DC voltage reduction is converted into a DC13.8V regulated power supply, redundant backup grouping power supply is provided for each unit of a locomotive radio station, and continuous and reliable operation of the unit state is ensured.
Preferably, the control box unit operates the control box unit MCU to be constructed by adopting an ARMCortex-A8 kernel microprocessor, when the locomotive radio station works in a 4G/5G high-speed public network mobile communication mode, wireless voice signals received by the mobile public network channel unit are sent to the control box unit through a voice channel of the main control unit, processed and amplified to output sound through a loudspeaker and sent to the recording unit for recording, voice signals of the microphone unit of the control box unit operates the control box unit are sent to the locomotive radio station main control unit to be sent to the voice channel, sent to the mobile public network channel unit for wireless transmission, and sent to the recording unit for recording.
Preferably, the communication operation of the digital wireless train dispatching multi-mode locomotive radio station comprises a train tail safety information transmission operation, and/or a wireless train number transmission operation, and/or a dispatching command wireless transmission operation.
Preferably, the communication operation of the digital wireless train-tuning multimode locomotive radio is realized by the existing 400MHz digital communication system, and/or the mobile communication system switched to the 4G/5G public network in the tunnel or other weak field area is used for realizing the access communication.
Preferably, the small triangle communication mode of the digital wireless train-tuning multimode locomotive radio is realized in such a way that when the locomotive runs to a tunnel or other 400MHz weak field area, a driver can switch to a 4G/5G public network mobile communication network to selectively call a certain locomotive radio device through a control box, after receiving data from the 4G/5G public network mobile communication network device in the tunnel or a line base station, the data is uploaded to a server through a TCP/IP network, the server analyzes the data and then forwards the data to a designated locomotive radio device in the same group as the originating locomotive radio device, after receiving the data, the locomotive radio device decompresses the data to restore voice, and a talkback call is completed, otherwise, a train operator can also selectively call the locomotive running to the tunnel through the locomotive radio device;
Preferably, the large triangle communication mode of the digital wireless train dispatching multimode locomotive radio is realized in such a way that when the locomotive runs to a tunnel or other 400MHz weak field area, a dispatcher can realize communication with a locomotive driver through a public network mobile communication dispatching platform, after the dispatcher selects the locomotive radio in the tunnel through the public network mobile communication dispatching platform, the dispatcher uploads the data to a server through a TCP/IP network, and after analyzing the data, the server forwards the data to tunnel public network equipment near the locomotive radio or a line base station, and the tunnel or the line public network mobile communication base station equipment forwards the data to designated locomotive radio equipment in a wireless way.
Preferably, the end-of-train security information transfer operation of the digital wireless train dispatch multimode locomotive station is accomplished if and only if the end-of-train security protection system has a dual mode communication system, i.e., a 400MHz digital communication system and a mobile communication system of the 4G/5G public network. Specifically, the dual mode of the locomotive radio station and the train tail device is utilized to transmit train tail information, when the locomotive runs to a tunnel or other 400MHz weak field area, the locomotive radio station sends out train tail information inquiry in a public network mobile communication mode, after receiving data, a public network mobile communication equipment base station in the tunnel uploads the data to an exchange server through a TCP/IP network, and the server analyzes the data and then forwards the data to a designated train tail device which initiates the same grouping with the locomotive radio station, otherwise, when the locomotive runs to the tunnel, the train tail device can also transmit train tail alarm information through the public network mobile communication.
Preferably, the wireless train number transmission operation of the digital wireless train adjustment multimode locomotive radio station is realized in such a way that when the TAX box controls the locomotive station to forward train operation data, the locomotive station not only wirelessly transmits information to the station data receiving decoder in the existing 400MHz mode, but also wirelessly transmits the train number information in the form of a 4G/5G public network mobile communication network, after receiving data from a tunnel or a base station of a line public network mobile communication device, the data is uploaded to a server through a TCP/IP network, and the server forwards the data to a designated IP user CTC/TDCS station device and a dispatching device through a wired network after analyzing the data.
Preferably, the wireless transmission operation of the dispatching command of the digital wireless train dispatching multimode locomotive radio is realized in such a way that the wireless information of the dispatching command can be transmitted in the existing 400MHz digital communication mode, the dispatching command can be transmitted through locomotive radio equipment, when the CTC/TDCS center controls the locomotive radio equipment to wirelessly transmit dispatching command data, after receiving the data, a tunnel or a base station of a public network mobile communication equipment along the public network, the tunnel or the base station of the public network mobile communication equipment along the public network uploads the data to the tunnel or the base station of the public network mobile communication equipment along the public network near the locomotive radio station, the tunnel or the base station of the public network mobile communication equipment along the public network wirelessly forwards the data to the appointed locomotive radio station, the locomotive radio station wirelessly transmits dispatching command automatic receipt and manual signing information in the form of a 4G/5G public network mobile communication network, after receiving the data, the tunnel or the base station of the public network mobile communication equipment along the public network uploads the public network to a server, and the server analyzes the data and forwards the data to the appointed IP user CTC/TDCS equipment and the dispatching equipment.
The beneficial effects are that: 1) The digital wireless train dispatching multimode locomotive radio station can obtain accurate running geographic parameters through positioning satellites, so that the train is ensured to be confirmed when running in an interval, and the information reliability before dispatching instructions are sent is ensured; 2) The digital wireless train-tuning multimode locomotive radio station can record the communication parameters through a recording unit, so that the train running operation instruction is ensured to be confirmed when being sent and received, and the safety of the train running operation is ensured; 3) The digital wireless train-tuning multimode locomotive radio adopts a redundant backup power supply mode, and power supply is completed by utilizing multi-path power supply state detection and unit circuit coding, so that the power consumption can be greatly saved, and the operation reliability of the locomotive radio is ensured; 4) The digital wireless train dispatching multimode locomotive radio is used for realizing the calling and talking functions with operators on duty, portable stations and dispatchers of a ground station; the system is used for realizing the wind pressure information transmission function of the locomotive radio station and the train tail device, realizing the wireless dispatching command information and the wireless train number information transmission, and realizing the automatic judgment of the section where the received satellite positioning information is located.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic diagram of a digital wireless train tone multimode locomotive station according to the present invention;
FIG. 2 is a schematic diagram of a digital wireless train control multimode locomotive station communication according to the present invention.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
The drawings in the embodiments of the invention: the different kinds of cross-sectional lines in the drawings are not marked according to national standards, and the material of the elements is not required, so that the cross-sectional views of the elements in the drawings are distinguished.
Referring to fig. 1-2, a digital wireless train-tuning multimode locomotive radio comprises a host, a control box unit operation control box unit, a power supply and an antenna feeder; the host mainly comprises a main control unit, a wireless communication unit, a satellite positioning unit, a recording unit, an audio unit and a power supply unit; the control box unit is used for operating the control box unit and comprises a key indicator lamp unit, a display unit, a microphone unit, a loudspeaker unit and a main control unit; the digital wireless train-tuning multimode locomotive radio station is used for realizing the calling and conversation functions with operators on duty, portable stations and dispatchers of a ground station; the system is used for realizing the wind pressure information transmission function of the locomotive radio station and the train tail device, realizing the wireless dispatching command information and the wireless train number information transmission, and realizing the automatic judgment of the section where the received satellite positioning information is located. The beneficial effects are that: the digital wireless train dispatching multimode locomotive radio station can obtain accurate running geographic parameters through positioning satellites, ensure that the train is confirmed when running in an interval, and ensure the information reliability before dispatching instructions are sent.
Preferably, the wireless communication unit comprises a mobile public network channel machine unit and a 400MHz channel machine unit, and is used for bearing public network mobile wireless communication and 400MHz digital wireless communication; the main control unit is a main data processing unit of a locomotive radio station and a processing center of data interaction of each unit, and is responsible for communicating with each component unit according to a specified protocol, analyzing and processing voice and data information transmitted on a communication link, controlling each component unit to work according to functional requirements, and timely responding to a control box unit operation communication request; the audio unit provides an audio transmission channel, the audio channel has the functions of adjusting audio amplitude and controlling channel switch by an electronic switch, and is used for realizing channel control, calling, sub-audio and audio coding and decoding and voice transfer of the 450MHz communication unit, and voice exchange transmission, audio adjustment and switch control of the mobile public network channel machine unit.
The satellite positioning unit MCU is constructed by adopting an ARM processor and is provided with a 32M storage chip for storing a GPS positioning line database. The line database can obtain real-time train running schedules through a railway office network management center and carry out necessary arrangement on the schedules.
The recording unit MCU is constructed by adopting an ARM processor, the recording and playing chip adopts a UDA1341, the audio is connected with the main control unit in a balanced mode, the audio storage is stored in an N-FLASH mode, and the recording unit MCU is provided with a USB interface for voice data dump and is communicated with the main control unit through a serial port.
The power supply unit is powered by a locomotive/motor train unit direct current power supply DC110V, the DC/DC voltage is reduced and converted into a DC13.8V regulated power supply, redundant backup grouping power supply is provided for each unit of a locomotive radio station, and continuous and reliable operation of the unit state is ensured.
The control box unit is used for operating the control box unit MCU, the ARMCortex-A8 kernel microprocessor is adopted for construction, when the locomotive radio station works in a 4G/5G high-speed public network mobile communication mode, wireless voice signals received by the mobile public network channel unit are sent to the control box unit through a main control unit voice channel, processed and amplified to output sound through a loudspeaker and sent to the recording unit for recording, voice signals of the transmitter unit of the control box unit is sent to the locomotive radio station main control unit for transmission to the voice channel, sent to the mobile public network channel unit for wireless transmission, and sent to the recording unit for recording. The beneficial effects are that: the digital wireless train-tuning multimode locomotive radio station can record the communication parameters through the recording unit, ensure that train running operation instructions are confirmed when being sent and received, and ensure the safety of train running operation.
Preferably, the communication operation of the digital wireless train dispatching multimode locomotive radio comprises a train tail safety information transmission operation, and/or wireless train number transmission operation and/or dispatching command wireless transmission operation.
Preferably, the communication operation of the digital wireless train-tuning multimode locomotive radio is realized by the mobile communication system which can realize mobile communication through the existing 400MHz digital communication system and/or realize quick access communication through the mobile communication system which is switched to the 4G/5G public network when in a tunnel or other weak field areas.
Preferably, the small triangle communication mode of the digital wireless train-tuning multimode locomotive radio is realized in a real mode, when the locomotive runs to a tunnel or other 400MHz weak field area, a driver can switch to a 4G/5G public network mobile communication network to selectively call a certain locomotive radio device through a control box, after receiving data from the 4G/5G public network mobile communication network device in the tunnel or a line base station, the data is uploaded to a server through a TCP/IP network, the server analyzes the data and then forwards the data to a designated locomotive radio device in the same group as the originating locomotive radio device, after the locomotive radio device receives the data, the data is decompressed to restore voice, and a talkback call is completed, otherwise, a train operator can also selectively call the locomotive running to the tunnel through the locomotive radio device;
Preferably, the large triangle communication mode of the digital wireless train dispatching multimode locomotive radio is realized in a real mode, when the locomotive runs to a tunnel or other 400MHz weak field area, a dispatcher can realize communication with a locomotive driver through a public network mobile communication dispatching platform, after the dispatcher selectively calls the locomotive radio in the tunnel through the public network mobile communication dispatching platform, the dispatcher uploads the data to a server through a TCP/IP network, and after analyzing the data, the server forwards the data to tunnel public network equipment near the locomotive radio or a line base station, and the tunnel or the line public network mobile communication base station equipment forwards the data to designated locomotive radio equipment in a wireless mode.
Preferably, the end-of-train security information transfer operation of the digital wireless train dispatch multimode locomotive station is accomplished if and only if the end-of-train security protection system has a dual mode communication system, i.e., a 400MHz digital communication system and a mobile communication system of the 4G/5G public network. Specifically, the dual mode of the locomotive radio station and the train tail device is utilized to transmit train tail information, when the locomotive runs to a tunnel or other 400MHz weak field area, the locomotive radio station sends out train tail information inquiry in a public network mobile communication mode, after receiving data, a public network mobile communication equipment base station in the tunnel uploads the data to an exchange server through a TCP/IP network, and the server analyzes the data and then forwards the data to a designated train tail device which initiates the same grouping with the locomotive radio station, otherwise, when the locomotive runs to the tunnel, the train tail device can also transmit train tail alarm information through the public network mobile communication.
Preferably, the wireless train number transmission operation of the digital wireless train adjustment multimode locomotive radio station is realized in such a way that when the TAX box controls the locomotive station to forward train operation data, the locomotive station not only wirelessly transmits information to the station data receiving decoder in the existing 400MHz mode, but also wirelessly transmits the train number information in the form of a 4G/5G public network mobile communication network, after receiving data from a tunnel or a base station of a line public network mobile communication device, the data is uploaded to a server through a TCP/IP network, and the server forwards the data to a designated IP user CTC/TDCS station device and a dispatching device through a wired network after analyzing the data.
Preferably, the wireless transmission operation of the dispatching command of the digital wireless train dispatching multimode locomotive radio is realized in such a way that the wireless information of the dispatching command can be transmitted in the existing 400MHz digital communication mode, the dispatching command can be transmitted through locomotive radio equipment, when the CTC/TDCS center controls the locomotive radio equipment to wirelessly transmit dispatching command data, after receiving the data, a tunnel or a base station of a public network mobile communication equipment along the public network, the tunnel or the base station of the public network mobile communication equipment along the public network uploads the data to the tunnel or the base station of the public network mobile communication equipment along the public network near the locomotive radio station, the tunnel or the base station of the public network mobile communication equipment along the public network wirelessly forwards the data to the appointed locomotive radio station, the locomotive radio station wirelessly transmits dispatching command automatic receipt and manual signing information in the form of a 4G/5G public network mobile communication network, after receiving the data, the tunnel or the base station of the public network mobile communication equipment along the public network uploads the public network to a server, and the server analyzes the data and forwards the data to the appointed IP user CTC/TDCS equipment and the dispatching equipment.
The digital wireless train-tuning multimode locomotive radio station is based on a 4G/5G high-speed public network digital mobile communication technology, integrates high-speed broadband digital mobile communication and 400MHz narrow-band private network mobile communication, relies on a public mobile network on a low construction cost investment on the basis of being compatible with the existing digital wireless train-tuning communication system, realizes the integration of the high-speed broadband mobile communication network, effectively improves the wireless voice and digital communication quality of the train-tuning communication system, effectively improves the anti-interference capability of wireless communication, and effectively improves the safety and reliability of wireless communication.
The digital wireless train-tuning multimode locomotive radio station mainly comprises a host computer, a control box unit operation control box unit, a power supply and an antenna feeder. The host mainly comprises a main control unit, a wireless communication unit, a satellite positioning unit, a recording unit, an audio unit, a power supply unit and the like. Control box unit operation the control box unit mainly includes button pilot lamp unit, display element, microphone unit, loudspeaker unit, main control unit etc.. The locomotive radio station mainly realizes the calling and talking functions with operators on duty, portable stations and dispatchers in the ground station; the wind pressure information transmission function of the locomotive radio station and the train tail device is realized; the wireless dispatching command information and wireless train number information transmission function is realized; the functions of automatically judging the section where the satellite positioning information is received and the like are realized.
The wireless communication unit comprises a mobile public network channel machine unit and a 400MHz channel machine unit, and carries public network mobile wireless communication and 400MHz digital wireless communication respectively. The public network mobile wireless communication is a trunking service platform based on a 4G/5G mobile public network, and the mobile public network channel machine unit provides duplex trunking communication service within the coverage range of the mobile network for users through a public network intercom scheduling platform server. The main control unit controls the channel machine to work and sends the audio signal through the audio unit. When the wireless signal is received, the channel machine is controlled to work through the main control unit, and the audio signal is received through the audio unit. The voice service and data service functions of the wireless public network mobile communication of the locomotive radio station, other locomotive radio stations, station radio stations and portable stations are realized.
The main control unit also controls the channel of the 400MHz channel machine to realize the channel switching function of the 400MHz channel machine. The main control unit controls the 400MHz channel machine to enter a transmitting state through the interface, and at the moment, the 400MHz channel machine can send an audio signal output by the audio unit; when the 400MHz channel machine is in a receiving state, the 400MHz channel machine controls the main control unit 400MHz channel machine to be in a receiving state through an interface, and the 400MHz channel machine demodulates an audio signal from a wireless carrier frequency signal and sends the audio signal to the audio unit to realize the voice service and data service functions of 400MHz wireless communication of a locomotive radio station.
Preferably, the main control unit is a main data processing unit of a locomotive radio station and a processing center of data interaction of each unit, and is responsible for communicating with each component unit according to a specified protocol, analyzing and processing voice and data information transmitted on a communication link, controlling each component unit to work according to functional requirements, and timely responding to a control box unit operation communication request.
Preferably, the main control unit MCU is constructed by adopting a NXP and LPC1778 microprocessor, and realizes a high-speed data processing function on the hardware platform and various communication functions of a locomotive radio station. Is an embedded microprocessor chip with high integration level, stability and reliability.
Preferably, the main control unit has the following functions: 1) The main control unit performs data communication with the control box unit based on RS422 serial data communication, so that a locomotive radio station responds to all key requests on the control box, and the functions of displaying, controlling an indicator lamp and a loudspeaker on the control box and the like are realized by the host; 2) The main control unit controls the audio channel switches and the volume of the audio unit based on the GPIO interface; 3) The main control unit is used for carrying out communication and control on the satellite positioning unit based on synchronous serial data communication, so as to realize Beidou/GPS satellite receiving switching control and receive geographic information and standard time information; 4) The main control unit is communicated with the recording unit based on the bus to realize the storage and inquiry of information such as railway dispatching business voice, data and the like; 5) The main control unit controls the mobile public network channel machine unit and the 400MHz channel machine unit based on the bus interface to realize the switching of communication modes, the receiving and transmitting of service information and the control of priority; 6) The main control unit realizes the control of the power supply unit based on the synchronous serial data communication interface.
Preferably, the audio unit mainly provides an audio transmission channel having functions of adjusting audio amplitude and electronically switching control channel switching. The functions of channel control, calling, sub-audio frequency and audio frequency coding and decoding, voice transfer and the like of the 450MHz communication unit are realized, and the functions of voice exchange transmission, audio frequency regulation, switch control and the like of the mobile public network channel machine unit are realized.
Preferably, the recording unit MCU is constructed by adopting an ARM processor, the recording and playing chip adopts a UDA1341, the audio is connected with the main control unit in a balanced mode, the audio storage is stored in an N-FLASH mode, and a USB interface is provided for voice data dump. And the communication with the main control unit is realized through a serial port.
Preferably, the recording unit has the following functions: 1) Realizing voice recording function, can record the content and time (accurate to seconds) of the locomotive radio voice communication in time sequence; 2) The data recording function is realized, and the content and time (accurate to 100 milliseconds) of the data such as internal communication, bearing service and the like of the locomotive radio station can be recorded in time sequence; 3) The clock correction function is realized, clock correction can be automatically carried out according to satellite positioning information output by the satellite positioning unit, and correction error is not more than 5s. The recording unit clock may also be corrected manually.
Preferably, the locomotive station main control unit may detect the recording unit, including a voice recording function, a data recording function, a clock correction function, and the like. Furthermore, the function of outputting relevant operation records of the driver on the dispatching communication information, the dispatching command information, the train protection alarm information and the train tail information to the EOAS vehicle-mounted equipment in real time is realized.
Preferably, the satellite positioning unit MCU is constructed with an ARM processor and is provided with a 32M memory chip for storing a GPS positioning line database. The line database can obtain real-time train running schedules through a railway office network management center and carry out necessary arrangement on the schedules.
Preferably, the satellite positioning unit has the following functions: 1) The satellite positioning unit can automatically determine or voice prompt a driver to select an operation route according to the train operation position according to the received satellite information, and determine a proper position addressing calling number according to the current operation route. Automatically determining software configuration type call key content according to a current running line, and meeting the requirements of calling and talking between a driver and a ground dispatching commander when a plurality of running directions exist in front of the running of a train and calling and talking between the driver and the ground dispatching commander adjacent to the associated line; 2) The satellite positioning unit can inquire the address book according to railway bureaus, lines, running sections, names and the like and call other railway communication equipment according to the received satellite information; 3) The satellite positioning unit supports dual-mode operation of a Beidou satellite navigation system and a Global Positioning System (GPS), and outputs public satellite positioning information to the main control unit and the recording unit.
Preferably, the power supply unit is powered by a locomotive/motor train unit direct current power supply DC110V, the DC/DC voltage reduction is converted into a DC13.8V regulated power supply, redundant backup grouping power supply is provided for each unit of a locomotive radio station, and the continuous and reliable operation of the unit state is ensured. The beneficial effects are that: the redundant backup power supply mode is to complete power supply by two or more than two groups of distributed power supplies through multipath power supply state detection and unit circuit coding, so that the power consumption can be greatly saved, and meanwhile, the operation reliability of a locomotive radio station is ensured.
Preferably, the MCU is built by adopting an ARMCortex-A8 kernel (AM 335X) microprocessor, when the locomotive radio station works in a 4G/5G high-speed public network mobile communication mode, wireless voice signals received by the mobile public network channel machine unit are sent to the MCU through a voice channel of the main control unit, are processed and amplified by the loudspeaker, and are sent to the recording unit for recording. Preferably, the control box unit sends the voice signal to the locomotive radio station through the microphone unit, then the main control unit of the locomotive radio station sends the voice signal to the voice channel, then the voice signal is sent to the mobile public network channel unit for wireless transmission, and the voice signal is sent to the recording unit for recording.
The principle of the process is the same when the locomotive radio works in a 400MHz digital wireless communication mode.
The implementation method of digital wireless train-tuning multimode locomotive radio station communication comprises the following steps: the digital wireless train dispatching multimode locomotive radio station is based on a cluster communication system realized on a 4G/5G high-speed public network digital mobile communication network, and mainly comprises a dispatching station, a server, a base station, a locomotive radio station, a train tail device and a portable station. Realizing the functions of vehicle-machine joint control, dispatching voice communication and train tail safety information transmission and/or wireless train number transmission and dispatching command service bearing in the coverage range of the 4G/5G public network mobile communication signals; meanwhile, the locomotive radio station can be positioned and monitored in real time.
Meanwhile, the communication method of the digital wireless train-tuning multimode locomotive can realize mobile communication through the existing 400MHz digital communication system, and can also be switched to a 4G/5G public network mobile communication network to realize communication in tunnels or other weak fields.
Locomotive radio stations based on 4G/5G public network digital mobile communication support group calling based on unified numbers of equipment in the network, all locomotive radio stations and portable stations in a whole calling system, and perform a communication function. The locomotive radio station receives the calls of other locomotive radio stations, locomotive radio stations or portable stations in the system and performs conversation.
Based on 400MHz digital wireless train dispatching communication network, the locomotive radio station supports calling all locomotive radio stations and portable stations in the range of the station through sub-audio signaling, and performs a communication function. The locomotive radio station receives the call of the locomotive radio station or the portable station in the range of the locomotive radio station and performs conversation.
(1) Small triangle communication
When the locomotive runs to a tunnel or other 400MHz weak field area, a driver can switch to a 4G/5G public network mobile communication network to selectively call a certain locomotive radio station device through a control box. After receiving the data, the 4G/5G public network mobile communication network equipment in the tunnel or the base station along the line uploads the data to a server through a TCP/IP network, and the server analyzes the data and forwards the data to the appointed locomotive radio equipment in the same group as the initiating locomotive radio equipment. After receiving the data, the locomotive radio equipment decompresses the data to restore the voice, and completes one intercom call conversation. Otherwise, the station operator can also select to call the locomotive in the tunnel through the locomotive radio equipment.
(2) Big triangle communication
When the locomotive runs to a tunnel or other 400MHz weak field area, a dispatcher can communicate with a locomotive driver through a public network mobile communication dispatching platform. After selecting the locomotive radio station in the calling tunnel through the public network mobile communication dispatching platform, the dispatcher uploads the data to a server through a TCP/IP network, the server analyzes the data and forwards the data to tunnel public network equipment nearby the locomotive radio station or a base station along the line, and the tunnel or the mobile communication base station along the public network wirelessly forwards the data to the appointed locomotive radio station equipment.
Meanwhile, the operation of transmitting the safety information of the train tail can be realized, and the safety protection system of the train tail has a dual-mode communication mode of 400MHz and 4G/5G public network mobile communication. Specifically, the dual mode of the locomotive radio and the train tail device is utilized for transmitting train tail information. When the locomotive runs to a tunnel or other 400MHz weak field area, the locomotive radio station sends out train tail information inquiry in a public network mobile communication mode, after receiving data, a public network mobile communication equipment base station in the tunnel uploads the data to an exchange server through a TCP/IP network, and the server forwards the data to a designated train tail device in the same group as the initiating locomotive radio station after analyzing the data. Otherwise, when the locomotive runs to the tunnel, the train tail device can also transmit train tail alarm information through public network mobile communication.
When the TAX box controls the locomotive platform to forward the train operation data, the locomotive platform not only wirelessly transmits information to the station data receiving decoder in the existing 400MHz mode, but also wirelessly transmits the train number information in the form of a 4G/5G public network mobile communication network, after receiving the data through a tunnel or a base station of a mobile communication device along the public network, the data is uploaded to a server through a TCP/IP network, and the server analyzes the data and forwards the data to designated IP user CTC/TDCS station equipment and scheduling equipment through a wired network.
The wireless transmission operation of the scheduling command can be realized in such a way that the wireless information of the scheduling command can be realized in the existing 400MHz digital communication mode, and the transmission of the scheduling command can also be realized through locomotive radio equipment. When the CTC/TDCS center controls the locomotive radio station equipment to wirelessly send scheduling command data, after receiving the data, the tunnel or the base station of the mobile communication equipment along the public network uploads the data to the tunnel near the locomotive radio station or the base station of the mobile communication equipment along the public network through the TCP/IP network, and the tunnel or the base station of the mobile communication equipment along the public network wirelessly forwards the data to the appointed locomotive radio station.
The locomotive radio station wirelessly sends dispatching command automatic receipt and manual signing information in the form of a 4G/5G public network mobile communication network, a tunnel or a base station of mobile communication equipment along the public network receives data and then uploads the data to a server through a TCP/IP network, and the server forwards the data to specified IP user CTC/TDCS station equipment and dispatching equipment through a wired network after analyzing the data.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (10)
1. A digital wireless train-tuning multimode locomotive radio, characterized by: the digital wireless train-tuning multimode locomotive radio station consists of a host, a control box unit operation control box unit, a power supply and an antenna feeder; the host mainly comprises a main control unit, a wireless communication unit, a satellite positioning unit, a recording unit, an audio unit and a power supply unit; the control box unit is used for operating the control box unit and comprises a key indicator lamp unit, a display unit, a microphone unit, a loudspeaker unit and a main control unit; the digital wireless train-tuning multimode locomotive radio station is used for realizing the calling and conversation functions with operators on duty, portable stations and dispatchers of a ground station; the system is used for realizing the wind pressure information transmission function of a locomotive radio station and a train tail device, realizing the transmission of wireless scheduling command information and wireless train number information and realizing the automatic judgment of the section where the received satellite positioning information is located; the wireless communication unit comprises a mobile public network channel machine unit and a 400MHz channel machine unit, and is used for bearing public network mobile wireless communication and 400MHz digital wireless communication; the main control unit is a main data processing unit of a locomotive radio station and a processing center of data interaction of each unit, and is responsible for communicating with each component unit according to a specified protocol, analyzing and processing voice and data information transmitted on a communication link, controlling each component unit to work according to functional requirements, and timely responding to a control box unit operation communication request; the audio unit provides an audio transmission channel, the audio channel has the functions of adjusting audio amplitude and controlling channel switch by an electronic switch, and is used for realizing channel control, calling, sub-audio and audio coding and decoding and voice transfer of the 450MHz communication unit, and voice exchange transmission, audio adjustment and switch control of the mobile public network channel machine unit.
2. A digital radio train tone multimode locomotive radio as in claim 1, wherein: the satellite positioning unit MCU is constructed by adopting an ARM processor and is provided with a 32M memory chip for storing a GPS positioning line database. The line database can obtain real-time train running schedules through a railway office network management center and carry out necessary arrangement on the schedules.
3. A digital radio train tone multimode locomotive radio as in claim 1, wherein: the recording unit MCU is constructed by adopting an ARM processor, the recording and playing chip adopts a UDA1341, the audio is connected with the main control unit in a balanced mode, the audio storage is stored in an N-FLASH mode, and the recording unit MCU is provided with a USB interface for voice data dump and is communicated with the main control unit through a serial port.
4. A digital radio train tone multimode locomotive radio as in claim 1, wherein: the power supply unit is powered by a locomotive/motor train unit direct current power supply DC110V, the DC/DC voltage reduction is converted into a DC13.8V regulated power supply, redundant backup grouping power supply is provided for each unit of a locomotive radio station, and the continuous and reliable operation of the unit state is ensured.
5. A digital radio train tone multimode locomotive radio as in claim 1, wherein: the control box unit operates the control box unit MCU to be constructed by adopting an ARMCortex-A8 kernel microprocessor, when the locomotive radio station works in a 4G/5G high-speed public network mobile communication mode, wireless voice signals received by the mobile public network channel machine unit are sent to the control box unit through a voice channel of the main control unit, processed and amplified by a loudspeaker to output sound and sent to the recording unit to record, voice signals of the microphone unit of the control box unit is sent to the locomotive radio station main control unit to be sent to the voice channel and sent to the mobile public network channel machine unit to be wirelessly transmitted, and the voice signals are sent to the recording unit to be recorded.
6. A method of operating a communications system having a digital radio train control multimode locomotive station as claimed in any one of claims 1 to 5 wherein: the operation communication method of the digital wireless train dispatching multimode locomotive radio station comprises the steps that the operation of transmitting safety information of the train tail including the train tail is realized, and/or wireless train number transmission and dispatching command wireless transmission are realized.
7. The method of operation communication for a digital radio train tone multimode locomotive station of claim 6, wherein: the operation communication method of the digital wireless train modulation multimode locomotive radio station can realize mobile communication through the existing 400MHz digital communication system, and can also switch to a 4G/5G public network mobile communication network to realize communication in tunnels or other weak fields, wherein the operation communication method comprises the following steps:
when the locomotive runs to a tunnel or other 400MHz weak field area, a driver can switch to a 4G/5G public network mobile communication network to selectively call a certain locomotive radio station device through a control box, after receiving data, the 4G/5G public network mobile communication network device in the tunnel or a line base station, the data is uploaded to a server through a TCP/IP network, the server analyzes the data and then forwards the data to a specified locomotive radio station device in the same group as the locomotive radio station device, after the locomotive radio station device receives the data, the data is decompressed to restore voice, and one-time intercom call conversation is completed, otherwise, a station operator can also select to call the locomotive running to the tunnel through the locomotive radio station device;
When the locomotive runs to a tunnel or other 400MHz weak field area, a dispatcher can realize communication with a locomotive driver through a public network mobile communication dispatching platform, the dispatcher selects a locomotive radio station in the tunnel through the public network mobile communication dispatching platform, uploads the locomotive radio station to a server through a TCP/IP network, the server analyzes data and forwards the data to tunnel public network equipment near the locomotive radio station or a line base station, and the tunnel or the line public network mobile communication base station equipment forwards the data to appointed locomotive radio station equipment in a wireless mode.
8. The method of operation communication for a digital radio train tone multimode locomotive station of claim 6, wherein: the train tail safety information transmission operation is realized by adopting a dual-mode communication mode of 400MHz and 4G/5G public network mobile communication, specifically, the train tail information transmission operation is realized by utilizing the dual-mode of a locomotive radio station and a train tail device, when a locomotive runs to a tunnel or other 400MHz weak field area, the locomotive radio station sends out train tail information inquiry in the public network mobile communication mode, a base station of a public network mobile communication device in the tunnel receives data and uploads the data to an exchange server through a TCP/IP network, and the server forwards the data to a designated train tail device which has the same group as the initiating locomotive radio station after analyzing the data, otherwise, when the locomotive runs to the tunnel, the train tail device can also transmit train tail warning information through the public network mobile communication.
9. The method of operation communication for a digital radio train tone multimode locomotive station of claim 6, wherein: when the TAX box controls the locomotive platform to transfer the train running data, the locomotive platform not only wirelessly transmits information to the station data receiving decoder in the existing 400MHz mode, but also wirelessly transmits the train number information in the form of a 4G/5G public network mobile communication network, after receiving the data, a tunnel or a base station of a mobile communication device along a public network, uploads the data to a server through a TCP/IP network, and the server analyzes the data and transfers the data to a designated IP user CTC/TDCS station device and a dispatching device through a wired network.
10. The method of operation communication for a digital radio train tone multimode locomotive station of claim 6, wherein: the wireless transmission operation of the dispatching command is realized by adopting the method that the wireless transmission operation of the dispatching command can be realized in the existing 400MHz digital communication mode, the transmission operation of the dispatching command can be realized through locomotive radio equipment, when the CTC/TDCS center controls the locomotive radio equipment to wirelessly transmit dispatching command data, a tunnel or a base station of the public network mobile communication equipment receives the data and then uploads the data to a tunnel near the locomotive radio station or the base station of the public network mobile communication equipment along the TCP/IP network, the tunnel or the base station of the public network mobile communication equipment wirelessly forwards the data to the appointed locomotive radio station, the locomotive radio station wirelessly transmits dispatching command automatic receipt and manual signing information in the form of a 4G/5G public network mobile communication network, and the tunnel or the base station of the public network mobile communication equipment receives the data and uploads the data to a server through the TCP/IP network, and the server analyzes the data and forwards the data to the appointed IP user CTC/TDCS equipment and the dispatching equipment.
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