Public and private network converged communication locomotive radio station based on wireless transmission platform and implementation method

Abstract

The invention discloses a public and private network converged communication locomotive radio station based on a wireless transmission platform and an implementation method, and belongs to the technical field of wireless communication locomotive radio stations. A locomotive radio station host is connected with a multimode vehicle-mounted antenna through an LTE-R antenna cable I, an LTE-R antenna cable II, a 5G / LTE antenna cable I, a 5G / LTE antenna cable II, a Beidou antenna cable, a 450M / 400M antenna cable and a WIFI antenna cable; the operation display terminal I and the operation display terminal II are respectively connected through network cables; the public and private network converged communication locomotive radio station comprises a control program and is used for realizing the functions of wireless train dispatching public and private network converged communication, crossing service wireless public and private network converged communication and integrated management and control of wireless public and private network converged communication; the operation display terminal I and the operation display terminal II are used by a driver for operation; the multi-mode vehicle-mounted antenna is an attached combined antenna. According to the invention, the problem of multiple wireless communication networks of railway wireless communication is effectively solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless communication locomotive radio stations, and in particular to a public-private network integrated communication locomotive radio station based on a wireless transmission platform and an implementation method thereof. Background Art

[0002] Wireless communication locomotive radios are widely used in local railway traffic dispatching and command systems. Currently, there are multiple communication systems on railway lines, including traditional 450MHz wireless communication, GSMR wireless communication, and the gradually used 400M digital communication, LTE private network, and 5G public private network. Existing locomotive radios can only support one or two communication systems, and cannot immediately switch to another communication system when a problem occurs in one communication system, and do not have the characteristics of converged communication.

[0003] At present, the voice and data communications of state-owned railway locomotive radios rely on 450M and GSMR communication networks, and the voice and digital communications of local railway locomotive radios rely on 450M and LTE-R networks. Neither supports 5G networks and cannot operate on sections that only support 5G networks. In addition, locomotive radios can only work on one network at a time. If the current network fails, the communication function fails, affecting driving safety. Therefore, a technical solution is needed to solve the problem of network adaptation by supporting multiple communication formats, and having the ability to autonomously judge and select the current optimal network or quickly switch to the suboptimal network when the network is abnormal, to ensure the quality of wireless communication. This technical solution is a research topic for technical personnel in the industry. Summary of the invention

[0004] In view of the current status of the prior art and the problem that existing locomotive radios cannot simultaneously support multiple networks including 5G, and cannot quickly switch to a suboptimal network when a single network fails, the present invention provides a public-private network integrated communication locomotive radio based on a wireless transmission platform and an implementation method, which are used to realize the functions of wireless train dispatching public-private network integrated communication, wireless public-private network integrated communication for crossing services, and wireless public-private network integrated communication for integrated management and control; the present invention effectively solves the problem of multiple wireless communication networks for railway wireless communications.

[0005] The technical solution adopted by the present invention is: a public-private network integrated communication locomotive radio based on a wireless transmission platform, the public-private network integrated communication locomotive radio including a locomotive radio host, a multi-mode vehicle-mounted antenna, an operation display terminal I and an operation display terminal II; the locomotive radio host is connected to the multi-mode vehicle-mounted antenna through LTE-R antenna cable I, LTE-R antenna cable II, 5G / LTE antenna cable I, 5G / LTE antenna cable II, Beidou antenna cable, 450M / 400M antenna cable, WIFI antenna cable, and is respectively connected to the operation display terminal I and the operation display terminal II through network cables; The locomotive radio host circuit is that the on-board wireless transmission platform is connected to the CIR device via a network cable; The vehicle-mounted wireless transmission platform circuit is that a 110V to 13.8V power supply unit I supplies power to a main control unit I, a main control unit II, a 5G / LTE unit I, a 5G / LTE unit II, a WIFI unit, a Beidou satellite unit, an LTE-R unit I and an LTE-R unit II, respectively. The main control unit I, the main control unit II, the 5G / LTE unit I, the 5G / LTE unit II, the WIFI unit, the Beidou satellite unit, the LTE-R unit I and the LTE-R unit II are respectively connected to the switching unit I through a network cable; The CIR device circuit is a 110V to 13.8V power supply unit II that supplies power to the main control unit III, the recording unit, the interface unit, and the 450M / 400M unit, respectively. The main control unit III, the recording unit, the interface unit, and the 450M / 400M unit are connected to the switching unit II via a network cable. The CIR interface unit circuit is as follows: a 13.8V to 3.3V power chip supplies power to the storage chip, MCU and switch chip respectively; a 13.8V to 48V power chip supplies power to the POE chip; the switch chip is bidirectionally connected to the MCU via an RMII interface and bidirectionally connected to the PHY chip via an MDI interface; the MCU is bidirectionally connected to the storage chip via an SPI interface; and the POE chip is unidirectionally connected to the PHY chip via a POE interface.

[0006] A method for implementing a public-private network integrated communication locomotive radio station based on a wireless transmission platform, the steps are as follows: Step 1: Turn on the public-private network integrated communication locomotive radio equipment; Step 2: The public-private network integrated communication locomotive radio determines whether the current network is a 5G / LTE public network. If so, execute step 5; if not, execute step 3; Step 3: The public-private network integrated communication locomotive radio determines whether the current network is an LTE-R private network. If so, execute step 5; if not, execute step 4. Step 4: The public-private network integrated communication locomotive radio enters the 450M / 400M communication mode; Step 5: The driver operates the public-private network integrated communication locomotive radio through the operation display terminal I or the operation display terminal II; Step 6: The public-private network integrated communication locomotive radio receives a voice or data service command; Step 7: Connect the public and private network integrated communication locomotive radio to the WIFI network; Step 8: The public-private network integrated communication locomotive radio determines whether the current service is a wireless train modulation service. If yes, the wireless train modulation service is executed. If not, step 9 is executed. Step 9: The public-private network integrated communication locomotive radio determines whether the current service is a road crossing wireless communication service. If yes, the road crossing wireless communication service is executed. If not, step 10 is executed. Step 10: The public-private network integrated communication locomotive radio determines whether the current wireless communication service is an integrated control service. If so, the integrated control service is executed. If not, step 5 is executed. Through the above steps, 450MHz / 400MHz communication, LTE-R private network communication, 5G / LTE public network communication, and WIFI communication are realized; Through the above steps, wireless public and private network integrated communication for train dispatching, wireless public and private network integrated communication for road crossing business, and wireless public and private network integrated communication for integrated management and control can be realized.

[0007] The method for executing the wireless train modulation service described in step eight is that after the public-private network integrated communication locomotive radio determines that the current service is a wireless train modulation service, it uses a service command to distinguish which type of train modulation service is initiated. If it is a voice call, the call service is initiated to the station radio through the currently selected channel. If it is a data service, data information is sent to the station radio through the currently selected channel.

[0008] The method for executing the wireless communication service at the level crossing described in step nine is that after the public-private network integrated communication locomotive radio determines that the current service is a level crossing wireless communication service, it uses service commands to distinguish what type of level crossing service is initiated. If it is a level crossing video service, a level crossing video application is sent to the corresponding level crossing through the current network. After the level crossing station responds, it sends the current level crossing video to the public-private network integrated communication locomotive radio. If it is a level crossing voice service, a voice call is initiated to the level crossing personnel through the current network.

[0009] The method for executing the integrated control wireless communication service described in step ten is that after the public-private network integrated communication locomotive radio determines that the current service is an integrated control wireless communication service, it sends the status information of the public-private network integrated communication locomotive radio to the integrated control platform through the current network, including the geographical location, vehicle speed, running direction, current network and other information.

[0010] The beneficial effects of the present invention are as follows: the public-private network integrated communication locomotive radio based on the wireless transmission platform realizes wireless train dispatching public-private network integrated communication, road crossing business wireless public-private network integrated communication, and integrated management and control wireless public-private network integrated communication. The present invention effectively solves the problem of multiple wireless communication networks for railway wireless communication. At present, the state-owned railway locomotive radio supports 450M and GSMR networks, and the local railway locomotive radio supports 450M and LTE-R networks. The locomotive radio can only work on one network at the same time. The local railway and state-owned railway locomotive radios are two models, and the locomotive radio needs to be replaced according to the application location. The present invention can support the use of state-owned railways and local railways at the same time. In sections that support 5G networks, the locomotive radio of the present invention can also support use. The present invention can work on multiple networks of 5G / LTE, LTE-R, 450M / 400M at the same time, select the current most optimal network for data and voice communication, and when the current network fails, it can quickly switch to the suboptimal network for work. It effectively unifies the equipment status and ensures that a single network failure does not affect the data and voice communication between the driver and the ground, thereby ensuring driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A circuit connection block diagram for realizing the public-private network integrated communication locomotive radio station of the present invention; Figure 2 The circuit connection block diagram of the locomotive radio host of the present invention; Figure 3 This is a circuit connection block diagram of the vehicle-mounted wireless transmission platform of the present invention; Figure 4 It is a CIR circuit connection block diagram of the present invention; Figure 5 A circuit connection block diagram of the interface unit of the CIR of the present invention; Figure 6 is a circuit connection block diagram of an embodiment of the present invention; Figure 7 The figure is a flow chart of an implementation method of an embodiment of the present invention. DETAILED DESCRIPTION

[0012] like Figure 1 As shown, the public-private network integrated communication locomotive radio based on the wireless transmission platform includes a locomotive radio host, an operation display terminal I, an operation display terminal II and a multi-mode vehicle-mounted antenna; The public-private network integrated communication locomotive radio contains a control program to realize the functions of wireless train dispatching public-private network integrated communication, wireless public-private network integrated communication for crossing business, and wireless public-private network integrated communication for integrated management and control.

[0013] Operation display terminal I is used for operation by the driver at the A end of the locomotive (the front or rear of the locomotive); Operation display terminal II is used for operation by the driver at the B end of the locomotive (the tail or the head of the locomotive); The multi-mode vehicle-mounted antenna is a fixed combination antenna that can simultaneously support the 450M band, LTE-R band, 5G band, and wifi band.

[0014] like Figure 2 As shown, the locomotive radio host includes an on-board wireless transmission platform and a CIR device. The on-board wireless transmission platform integrates multiple channels such as LTE-R, 5G / LTE, and wifi, and sends information on whether the channel is available to the CIR device; the CIR device integrates a 450M communication function and can access the LTE-R, 5G / LTE, and wifi networks through the on-board wireless transmission platform. It is equipped with an operation display terminal for voice and data communications between the driver and the ground.

[0015] like Figure 3 As shown, the vehicle-mounted wireless transmission platform includes a 110V to 13.8V power supply unit I, a main control unit I, a main control unit II, a 5G / LTE unit I, a 5G / LTE unit II, a WIFI unit, a Beidou satellite unit, an LTE-R unit I, a LTE-R unit II and a switching unit I; The 110V to 13.8V power supply unit I is used to supply power to each unit of the vehicle-mounted wireless transmission platform; the main control unit I is used to collect the status information of each unit of the vehicle-mounted wireless transmission platform and control the master and standby status of each unit; the main control unit II and the main control unit I are redundant backups of each other; the 5G / LTE unit I is used to connect to the 5G public and private network; the 5G / LTE unit II and the 5G / LTE unit I are redundant backups of each other; the WIFI unit is used to connect to the wifi network; the Beidou satellite unit is used to obtain Beidou satellite positioning information; the LTE-R unit I is used to connect to the LTE-R network; the LTE-R unit II and the LTE-R unit I are backups of each other; the switching unit I is used to connect each unit via an Ethernet network.

[0016] like Figure 4 As shown, the CIR device includes a 110V power supply unit, a control unit, a recording unit, a CIR interface unit, a 450M / 400M unit, and a switching unit; The 110V to 13.8V power supply unit is used to power the CIR units; the control unit is used to determine and select the current optimal network channel, and when the optimal network fails, it can switch to the suboptimal network to work; the recording unit is used to record equipment operation information and driver calls; the CIR interface unit is used to connect the CIR to the vehicle-mounted wireless transmission platform; the 450M / 400M unit is used to access the 450M / 400M channel; the switching unit is used to connect the CIR units to Ethernet.

[0017] like Figure 5As shown, the CIR interface unit includes a 13.8V to 3.3V power chip (TPS54620RHLR), a storage chip (MX66L51235F), an MCU (LPC4337), a 13.8V to 48V power chip (UM78514), a switch chip (KSZ8784CNX), a POE chip (IP804), and a PHY chip (HX6096); The 13.8V to 3.3V power chip is used to power each chip; the storage chip is used to store the interface unit operation log; the MCU is used to configure the working mode of each chip and report the working status of the interface unit to the control unit; the 13.8V to 48V power chip is used to convert 13.8V to 48V and power the POE chip; the switch chip is used to convert the RMII interface to the PHY interface; the POE chip is used to provide external power supply for the network port; the PHY chip is used to realize the network transformer function.

[0018] Embodiment 1, as Figure 6 , Figure 7 As shown, a method for implementing a public-private network integrated communication locomotive radio based on a wireless transmission platform is used for the public-private network integrated communication locomotive radio to connect to a ground station radio, MCX server, integrated management and control platform and a crossing station through a 450M channel, 5G / LTE public network, LTE private network and WIFI. The public-private network integrated communication locomotive radio control program performs the following operations: Turn on the public-private network integrated communication locomotive radio equipment; The public-private network integrated communication locomotive radio selects the network in the order of priority of 5G / LTE, LTE-R, and 450M / 400M; The main control unit I and the main control unit II of the vehicle-mounted wireless transmission platform are connected to the 5G / LTE unit I, the 5G / LTE unit II, the LTE-R unit I, and the LTE-R unit II through the switching unit, and the status information of the 5G / LTE public network and the LTE-R private network are obtained in real time, and the status information is uploaded to the main control unit III of the CIR through the interface unit of the CIR. The main control unit III of the CIR selects the network according to the uploaded status information to determine whether it is the 5G / LTE public network or the LTE-R private network; the main control unit I and the main control unit II of the vehicle-mounted wireless transmission platform are mutually redundant hot standby, the 5G / LTE unit I and the 5G / LTE unit II are mutually redundant hot standby, the LTE-R unit I and the LTE-R unit II are mutually redundant hot standby, and the Beidou satellite unit of the vehicle-mounted wireless transmission platform provides positioning and clock services for the public-private network integrated communication locomotive radio station; If there is no signal on either the 5G / LTE public network or the LTE-R private network, the public / private network integrated communication locomotive radio uses the 450M / 400M channel to connect to the station radio through the CIR's 450M / 400M unit; The driver operates the public-private network integrated communication locomotive radio through the operation display terminal I or the operation display terminal II, and initiates voice or data communication services through the currently selected network; The public-private network integrated communication locomotive radio receives voice or data service commands; The public and private network integrated communication locomotive radio is connected to the WIFI network through the WIFI unit of the vehicle-mounted wireless transmission platform; When the locomotive runs in the 450M / 400M section, the public-private network integrated communication locomotive radio and station radio communicate directly through the 450M / 400M channel; When the locomotive is running in the LTE-R private network section, the public-private network integrated communication locomotive radio and the station radio register with the MCX server through the LTE-R private network. After the registration is completed, when the public-private network integrated communication locomotive radio and the station radio communicate, they obtain the other party's IP information and audio and video codec information through MCX, and communicate by negotiating a unified codec method; When the locomotive is running in the 5G / LTE public network section, the public-private network integrated communication locomotive radio and the station radio register with the MCX server through the 5G / LTE public network. After the registration is completed, when the public-private network integrated communication locomotive radio and the station radio communicate, they obtain the other party's IP information and audio and video codec information through MCX, and communicate by negotiating and agreeing on the codec method; If there are multiple network standards on the current line at the same time, the public-private network integrated communication locomotive radio will perform audio and video communication in the order of 5G / LTE public network, LTE-R private network, and 450M / 400M network priority according to the current network situation; When the 5G / LTE public network and LTE-R private network exist at the same time, the public-private network integrated communication locomotive radio station registers with the MCX through the two networks at the same time. After successful registration, in the subsequent communication process, the 5G / LTE public network has poor network signal. The public-private network integrated communication locomotive radio station sends audio and video information to the station radio station through the 5G / LTE public network and the LTE-R private network at the same time. When the 5G / LTE public network is disconnected, the public-private network integrated communication locomotive radio station quickly switches to sending audio and video information to the station radio station through the LTE-R private network; When the same information is sent through the 5G / LTE public network and the LTE-R private network, the information has a deduplication mark, and the station radio station can filter the same data through the deduplication mark; After the public-private network integrated communication locomotive radio determines that the current service is a wireless train modulation service, it uses service commands to distinguish which type of train modulation service is initiated. If it is a voice call, the call service is initiated to the station radio through the currently selected channel. If it is a data service, data information is sent to the station radio through the currently selected channel.

[0019] After the public-private network integrated communication locomotive radio determines that the current service is a level crossing wireless communication service, it uses service commands to distinguish what type of level crossing service is initiated. If it is a level crossing video service, a level crossing video application is sent to the corresponding level crossing through the current network. After the level crossing station responds, it sends the current level crossing video to the public-private network integrated communication locomotive radio. If it is a level crossing voice service, a voice call is initiated to the level crossing personnel through the current network.

[0020] After the public-private network integrated communication locomotive radio determines that the current wireless communication service is integrated control, it reports the status information of the public-private network integrated communication locomotive radio to the integrated control platform in real time. The integrated control platform can obtain the status information of the public-private network integrated communication locomotive radio and the station radio in real time, including the geographic location information, speed, running direction, currently selected communication network and other information of the public-private network integrated communication locomotive radio. When the public-private network integrated communication locomotive radio or the station radio has an abnormality, the integrated control platform will issue a prompt to the management personnel. The integrated control platform can also perform scheduled software update tasks for the station radio and the public-private network integrated communication locomotive radio through the 5G / LTE public network or LTE-R private network.

Claims

1. A public-private network integrated communication locomotive radio based on a wireless transmission platform, characterized by: The public-private network integrated communication locomotive radio station includes a locomotive radio host, a multi-mode vehicle-mounted antenna, an operation display terminal I and an operation display terminal II; the locomotive radio host is connected to the multi-mode vehicle-mounted antenna through LTE-R antenna cable I, LTE-R antenna cable II, 5G / LTE antenna cable I, 5G / LTE antenna cable II, Beidou antenna cable, 450M / 400M antenna cable, and WIFI antenna cable, and is connected to the operation display terminal I and the operation display terminal II through network cables respectively; The locomotive radio host circuit is that the on-board wireless transmission platform is connected to the CIR device via a network cable; The vehicle-mounted wireless transmission platform circuit is that a 110V to 13.8V power supply unit I supplies power to a main control unit I, a main control unit II, a 5G / LTE unit I, a 5G / LTE unit II, a WIFI unit, a Beidou satellite unit, an LTE-R unit I and an LTE-R unit II, respectively. The main control unit I, the main control unit II, the 5G / LTE unit I, the 5G / LTE unit II, the WIFI unit, the Beidou satellite unit, the LTE-R unit I and the LTE-R unit II are respectively connected to the switching unit I through a network cable; The CIR device circuit is that the 110V to 13.8V power supply unit II supplies power to the main control unit III, the recording unit, the interface unit, and the 450M / 400M unit respectively, and the main control unit III, the recording unit, the interface unit, and the 450M / 400M unit are respectively connected to the switching unit II through a network cable; The CIR interface unit circuit is as follows: a 13.8V to 3.3V power chip supplies power to the storage chip, MCU and switch chip respectively; a 13.8V to 48V power chip supplies power to the POE chip; the switch chip is bidirectionally connected to the MCU via an RMII interface and bidirectionally connected to the PHY chip via an MDI interface; the MCU is bidirectionally connected to the storage chip via an SPI interface; and the POE chip is unidirectionally connected to the PHY chip via a POE interface.

2. A method for implementing the public-private network integrated communication locomotive radio station based on the wireless transmission platform of claim 1, characterized in that: Here are the steps: Step 1: Turn on the public-private network integrated communication locomotive radio equipment; Step 2: The public-private network integrated communication locomotive radio determines whether the current network is a 5G / LTE public network. If so, execute step 5; if not, execute step 3; Step 3: The public-private network integrated communication locomotive radio determines whether the current network is an LTE-R private network. If so, execute step 5; if not, execute step 4. Step 4: The public-private network integrated communication locomotive radio enters the 450M / 400M communication mode; Step 5: The driver operates the public-private network integrated communication locomotive radio through the operation display terminal I or the operation display terminal II; Step 6: The public-private network integrated communication locomotive radio receives a voice or data service command; Step 7: Connect the public and private network integrated communication locomotive radio to the WIFI network; Step 8: The public-private network integrated communication locomotive radio determines whether the current service is a wireless train modulation service. If yes, the wireless train modulation service is executed. If not, step 9 is executed. Step 9: The public-private network integrated communication locomotive radio determines whether the current service is a road crossing wireless communication service. If yes, the road crossing wireless communication service is executed. If not, step 10 is executed. Step 10: The public-private network integrated communication locomotive radio determines whether the current wireless communication service is an integrated control service. If so, the integrated control service is executed. If not, step 5 is executed. Through the above steps, 450MHz / 400MHz communication, LTE-R private network communication, 5G / LTE public network communication, and WIFI communication are realized; Through the above steps, wireless public and private network integrated communication for train dispatching, wireless public and private network integrated communication for road crossing business, and wireless public and private network integrated communication for integrated management and control can be realized.

3. The method for implementing the public-private network integrated communication locomotive radio station based on the wireless transmission platform according to claim 2 is characterized in that: The method for executing the wireless train modulation service described in step eight is that after the public-private network integrated communication locomotive radio determines that the current service is a wireless train modulation service, it uses a service command to distinguish which type of train modulation service is initiated. If it is a voice call, the call service is initiated to the station radio through the currently selected channel. If it is a data service, data information is sent to the station radio through the currently selected channel.

4. The method for implementing the public-private network integrated communication locomotive radio station based on the wireless transmission platform according to claim 2 is characterized in that: The method for executing the wireless communication service at the level crossing described in step nine is that after the public-private network integrated communication locomotive radio determines that the current service is a level crossing wireless communication service, it uses service commands to distinguish what type of level crossing service is initiated. If it is a level crossing video service, a level crossing video application is sent to the corresponding level crossing through the current network. After the level crossing station responds, it sends the current level crossing video to the public-private network integrated communication locomotive radio. If it is a level crossing voice service, a voice call is initiated to the level crossing personnel through the current network.

5. The method for implementing the public-private network integrated communication locomotive radio station based on the wireless transmission platform according to claim 2 is characterized in that: The method for executing the integrated control wireless communication service described in step ten is that after the public-private network integrated communication locomotive radio determines that the current service is an integrated control wireless communication service, it sends the status information of the public-private network integrated communication locomotive radio to the integrated control platform through the current network, including the geographical location, vehicle speed, running direction, and current network information.

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