A wireless end changing and intercommunication system for a railway locomotive and its implementation method

Abstract

A railway locomotive A, B end wireless end change and internal communication system and implementation method, including locomotive radio, ground server and synchronization device, ground server is equipped with synchronization system server software, the synchronization device of setting in the same locomotive A end and the synchronization device of locomotive B end respectively through the serial port line connects a locomotive radio to carry out data exchange, the synchronization device of locomotive A end and B end carries out data exchange through 5G-R network and 800MHz wireless signal, and respectively with ground server through 5G-R network carries out data exchange, ground server is used to collect the comprehensive information of the synchronization device of locomotive A, B end, assists the synchronization device of locomotive A, B end to complete automatic pairing, after pairing is completed, the synchronization device of locomotive A, B end carries out wireless end change and internal communication, the synchronization device of locomotive A, B end informs respective locomotive radio with current operating end state information, improve the efficiency of railway double-end locomotive end change and driver communication.

Description

Technical Field

[0001] This invention belongs to the field of railway communication control and relates to a wireless switching and internal communication system and implementation method for railway locomotives with A and B ends, which is used to enable the switching of operating ends and internal communication for locomotive drivers with dual operating ends during train operation. Background Technology

[0002] Currently, many electric locomotives on China's railways are equipped with dual-operation-end electric locomotives, meaning each locomotive has an onboard radio installed at end A and end B for dispatching and communication. When a locomotive needs to change direction, the driver must switch to the other end. The current railway intelligent network assigns only one set of identification information to each locomotive radio. If both radios are powered on simultaneously, network access conflicts occur. Existing solutions involve drivers communicating and coordinating via handheld intercoms, ensuring only one radio is powered on at any given time, while the other is powered off. During the switch, the primary operating radio is de-powered first, then the secondary operating radio is powered on. Furthermore, initialization after powering on the radio takes approximately 3 minutes, severely impacting operational efficiency. To improve the efficiency of switching and communication between the primary and secondary operating ends, a locomotive A / B end synchronization system needs to be developed. This system should have the functions of wirelessly switching operating ends, notifying existing locomotive radios of operating end status information, and providing internal communication capabilities to improve operational efficiency. Summary of the Invention

[0003] In view of the current state of the technology, the present invention provides a wireless switching and internal communication system and implementation method for railway locomotives A and B ends. The system has the functions of automatic pairing of synchronization devices at the same locomotive A and B ends, wireless switching and internal communication at the same locomotive A and B ends. The system can improve the efficiency of locomotive operation, shorten the switching time of the operation terminal from the original 3 minutes to 10 seconds, and eliminate the need for separate configuration of handheld walkie-talkie equipment.

[0004] The technical solution adopted in this invention is: a wireless switching and internal communication system for railway locomotives A and B ends, including a locomotive radio and a ground server, and also including a synchronization device; the ground server is equipped with synchronization system server software;

[0005] The synchronization device installed at locomotive A end and the synchronization device installed at locomotive B end of the same locomotive are respectively connected to a locomotive radio for data exchange via serial cable.

[0006] The synchronization devices at locomotive A and B exchange data via 5G-R network and 800MHz wireless signal, and also exchange data with ground servers via 5G-R network.

[0007] The ground server is used to collect comprehensive information from the synchronization devices at locomotive A and B ends, and assist the synchronization devices at locomotive A and B ends in completing automatic pairing. After pairing is completed, the synchronization devices at locomotive A and B ends perform wireless terminal switching and internal communication, and the synchronization devices at locomotive A and B ends notify their respective locomotive radios of the current operating terminal status information.

[0008] The synchronization device includes a dual-mode channel unit, a network switch, a display control unit, and a power supply unit;

[0009] The display control unit and the dual-mode channel unit are respectively connected to the network switch via a network bus to form a local area network for data communication; the power supply unit is connected to the display control unit, the dual-mode channel unit, and the network switch via power lines to provide power.

[0010] The display control unit is used to perform business logic control, interface operation, and status display.

[0011] The network switch is used to provide network access functionality, connecting the display control unit and the dual-mode channel unit to the same local area network;

[0012] The dual-mode channel unit provides a 5G-R network channel and an 800MHz wireless analog channel.

[0013] The dual-mode channel unit consists of a 5G-R digital module, an 800MHz analog module, and a control unit. The 5G-R digital module and the 800MHz analog module are connected to the control unit via a control bus.

[0014] The locomotive A and B ends refer to the main operating end and auxiliary operating end or the auxiliary operating end and main operating end of the same locomotive.

[0015] A method for implementing a wireless switching and internal communication system for railway locomotives (A and B ends) includes the following steps:

[0016] The automatic pairing steps for the synchronization devices at locomotives A and B are as follows:

[0017] (a) After the ground server is powered on, it enters a standby state, waiting to receive integrated information from the synchronization devices at locomotives A and B.

[0018] (ii) The synchronization device at locomotive A and B ends is turned on and enters the secondary operation end state. The "internal communication" button on the touch screen of the display control unit is disabled by default. Then the dual-mode channel unit is initialized. After obtaining the 5G-R network IP address, a comprehensive information instruction is sent to the ground server at 60-second intervals. The instruction includes: locomotive number, locomotive end number, 5G-R network IP address and 5G-R telephone number.

[0019] (iii) After receiving the integrated information instruction from the synchronization device at locomotive A and B, the ground server extracts the locomotive number, locomotive terminal number, 5G-R network IP address and 5G-R telephone number, and generates a synchronization device ledger in the database.

[0020] (iv) When the synchronization device at locomotive A or B is not paired, it sends a “query pairing information” command to the ground server every 30 seconds. The command includes: locomotive number and locomotive end number.

[0021] (v) After receiving the “query pairing information” instruction, the ground server extracts the locomotive number and locomotive end number from the instruction and compares them with the records in the synchronization device ledger one by one. If the comparison is consistent, the 5G-R network IP address and 5G-R telephone number are extracted from the record and a “pairing information response” is sent to the synchronization device at locomotive end A or B.

[0022] (vi) After the synchronization device at locomotive A or B receives the “pairing information response”, it extracts and saves the 5G-R network IP and 5G-R telephone number from the instruction, completes the pairing, and displays the “internal call” button on the control unit touch screen as enabled.

[0023] The steps for wireless switching and internal communication between the synchronization devices at locomotive A and B ends are as follows:

[0024] (i) After the automatic pairing of the synchronization device at locomotive A end or B end is completed, the driver presses and holds the “Main Control” button on the touch screen of the display control unit for more than 3 seconds to send the “Request Main Operation Terminal” command through the 5G-R network channel and the 800MHz wireless analog channel. The command includes: locomotive number and locomotive end number.

[0025] (ii) Upon receiving the "Request Master Operation Terminal" instruction, the synchronization device at locomotive B or A compares the locomotive number and locomotive terminal number carried in the instruction with its own locomotive number and locomotive terminal number. If the comparison finds that the instruction was sent by the synchronization device at locomotive A or B, it becomes the secondary operation terminal if it is currently the master operation terminal; otherwise, it remains the secondary operation terminal. Then, it notifies the locomotive radio to enter the secondary operation terminal state and sends the "Switch to Secondary Operation Terminal" instruction through the 5G-R network channel and the 800MHz wireless analog channel. This instruction includes the locomotive number and the locomotive terminal number.

[0026] (iii) When the synchronization device at locomotive A or B receives the instruction to "switch to secondary operation terminal", it compares the locomotive number and locomotive terminal number carried in the instruction with its own locomotive number and locomotive terminal number. If the comparison finds that the instruction was sent by the synchronization device at locomotive B or A, the synchronization device at locomotive A or B switches to primary operation terminal and notifies the locomotive radio to enter primary operation terminal state.

[0027] (iv) The driver operates the synchronization device at the A or B end of the locomotive and presses the “internal call” button on the touch screen of the display control unit for more than 3 seconds to initiate a point-to-point internal call through the 5G-R network.

[0028] After the synchronization devices at locomotive A and B are turned on, they are both set to secondary operation by default. When the driver is driving, he will switch the synchronization device at his own end to primary operation and notify the synchronization device at the other end to switch to secondary operation.

[0029] The present invention has the following advantages:

[0030] (1) It is equipped with a newly designed dual-mode channel unit, which provides 5G-R digital channel and 800MHz analog channel at the same time. It is reliable in communication and can adapt to different terrains.

[0031] (2) The locomotive dual-end synchronization device is powered on and in hot standby, and the switching time at the operating end is shortened from 3 minutes to 10 seconds, which improves the switching efficiency.

[0032] (3) Automatic matching of phone numbers on both ends enables one-click calling, eliminating the dialing process and allowing drivers to focus more on driving, thus improving driving safety.

[0033] In summary, the invention greatly improves the convenience and intelligence of locomotive driving, and increases the efficiency of drivers in operating locomotives. Attached Figure Description

[0034] Figure 1 This is a system composition block diagram of the present invention;

[0035] Figure 2 This is a block diagram of the dual-mode channel unit of the present invention;

[0036] Figure 3 This is a flowchart illustrating the functional implementation of the present invention. Detailed Implementation

[0037] like Figure 1 As shown, a wireless switching and internal communication system for railway locomotives at ends A and B consists of a ground server, a synchronization device, and a locomotive radio, with the locomotive radio being an existing device.

[0038] Example 1;

[0039] The specific implementation of the system is illustrated using the HXD3C-88888 double-ended electric locomotive running on a freight line as an example.

[0040] Use a PC, install server software on it to serve as a ground server, deploy it in the freight line dispatch room, and connect it to the freight line 5G-R communication network via network cable;

[0041] The two ends of the locomotive are usually referred to as locomotive A end and locomotive B end. A synchronization device is installed between the equipment of locomotive A end and locomotive B end respectively. The two synchronization devices are connected to a locomotive radio station through a serial port cable. Locomotive A end and locomotive B end are connected to the 5G-R communication network through the dual-mode channel unit of the synchronization device respectively.

[0042] In this way, the synchronization device at locomotive A, the synchronization device at locomotive B, and the ground server can communicate with each other via the 5G-R network.

[0043] In addition, the synchronization device at locomotive A end and the synchronization device at locomotive B end also use an 800MHz analog channel for direct data communication.

[0044] The display control unit and dual-mode channel unit of the synchronization device are connected to the network switch via a network bus, forming a local area network within the synchronization device. This allows the display control unit and dual-mode channel unit to communicate with each other. The power supply unit is connected to the display control unit, dual-mode channel unit, and network switch via a power cord to provide power.

[0045] like Figure 2 As shown, the dual-mode channel unit consists of a 5G-R digital module, an 800MHz analog module, and a control unit. After the synchronization device is powered on, the power supply unit supplies power to the dual-mode channel unit through the power line. The control unit controls the 5G-R digital module and the 800MHz analog module through the control bus. The dual-mode channel unit sends the data received by the 5G-R digital module and the 800MHz analog module to the display control unit through the network bus. The display control unit sends the data to be sent to the control unit of the dual-mode channel unit through the network bus. The control unit of the dual-mode channel unit controls the 5G-R digital module and the 800MHz analog module to send the data out.

[0046] like Figure 3 As shown, a method for implementing a wireless switching and internal communication system for railway locomotives at ends A and B includes the following steps:

[0047] (a) The automatic pairing steps for the synchronization devices at locomotive A and B ends are as follows:

[0048] 1. After the ground server is powered on, it enters a standby state, waiting to receive comprehensive information from the synchronization devices at the A and B ends of locomotive HXD3C-88888;

[0049] 2. The synchronization devices at ends A and B of locomotive HXD3C-88888 are powered on and enter the secondary operation terminal state. The "Internal Communication" button on the touch screen of the display control unit is disabled. Then, the dual-mode channel unit is initialized, and the 5G-R digital module automatically searches for and registers the 5G-R network. After obtaining the 5G-R network IP address, the synchronization device sends a comprehensive information command to the ground server every 60 seconds. This command includes: locomotive number, locomotive end number, 5G-R network IP address, and 5G-R phone number.

[0050] 3. After receiving the integrated information instruction from the synchronization devices at ends A and B of locomotive HXD3C-88888, the ground server extracts the locomotive number, locomotive end number, 5G-R network IP address and 5G-R phone number, writes the above data into the database, and generates a synchronization device ledger.

[0051] 4. When the synchronization device at end A or end B of locomotive HXD3C-88888 is not paired, it sends a "query pairing information" command to the ground server every 30 seconds. This command includes: locomotive number and locomotive end number.

[0052] 5. After receiving the "query pairing information" command, the ground server extracts the locomotive number and locomotive end number from the command and compares them with the records in the synchronization device ledger one by one. If the comparison matches, the 5G-R network IP address and 5G-R telephone number are extracted from the record, and a "pairing information response" is sent to the synchronization device at end A or end B of locomotive HXD3C-88888.

[0053] 6. After receiving the "pairing information response", the synchronization device at end A or end B of locomotive HXD3C-88888 extracts the 5G-R network IP and 5G-R phone number from the instruction and saves them, completing the pairing. The "internal call" button on the touch screen of the display control unit will then be enabled.

[0054] (II) The steps for wireless switching and internal communication between the synchronization devices at locomotive A and B ends are as follows:

[0055] 1. After the automatic pairing of the synchronization device at end A or end B of locomotive HXD3C-88888 is completed, the driver shall press and hold the “Main Control” button on the touch screen of the display control unit for more than 3 seconds to send the “Request Master Operation Terminal” command through the 5G-R network channel and 800MHz wireless analog channel. The command includes: locomotive number and locomotive end number.

[0056] 2. Upon receiving the "Request Master Operation Terminal" instruction, the synchronization device at either end B or A of the HXD3C-88888 locomotive compares the locomotive number and locomotive terminal number carried in the instruction with its own locomotive number and locomotive terminal number. If the comparison reveals that the instruction was sent by the synchronization device at either end A or B of the HXD3C-88888 locomotive, it will switch to the secondary operation terminal if it is currently the master operation terminal; otherwise, it will remain the secondary operation terminal. Then, it will notify the locomotive radio to enter the secondary operation terminal state and send the "Switch to Secondary Operation Terminal" instruction through the 5G-R network channel and the 800MHz wireless analog channel. This instruction includes the locomotive number and locomotive terminal number.

[0057] 3. When the synchronization device at end A or end B of locomotive HXD3C-88888 receives the "Switch to secondary operation terminal" command, it compares the locomotive number and locomotive terminal number carried in the command with its own locomotive number and locomotive terminal number. If the comparison finds that the command was sent by the synchronization device at end B or end A of locomotive, the synchronization device at end A or end B of locomotive switches to the primary operation terminal and notifies the locomotive radio to enter the primary operation terminal state.

[0058] 4. The driver operates the synchronization device on the A or B end of the HXD3C-88888 locomotive and presses the "Internal Talk" button on the touch screen of the display control unit for more than 3 seconds to initiate a point-to-point internal call through the 5G-R network.

Claims

1. A wireless switching and intercom system for railway locomotives at A and B ends, comprising a locomotive radio and a ground server, characterized in that: It also includes a synchronization device; the ground server is equipped with synchronization system server software; The synchronization device installed at locomotive A end and the synchronization device installed at locomotive B end of the same locomotive are respectively connected to a locomotive radio for data exchange via serial cable. The synchronization devices at locomotive A and B exchange data via 5G-R network and 800MHz wireless signal, and also exchange data with ground servers via 5G-R network. The ground server is used to collect comprehensive information from the synchronization devices of locomotives A and B, and assist the synchronization devices of locomotives A and B in completing automatic pairing. After pairing, the synchronization devices of locomotives A and B perform wireless terminal switching and internal communication, and the synchronization devices of locomotives A and B notify their respective locomotive radios of the current operating terminal status information. The synchronization device includes a dual-mode channel unit, a network switch, a display control unit, and a power supply unit; The display control unit and the dual-mode channel unit are respectively connected to the network switch via a network bus to form a local area network for data communication; the power supply unit is connected to the display control unit, the dual-mode channel unit, and the network switch via power lines to provide power. The display control unit is used to perform business logic control, interface operation, and status display. The network switch is used to provide network access functionality, connecting the display control unit and the dual-mode channel unit to the same local area network; The dual-mode channel unit provides a 5G-R network channel and an 800MHz wireless analog channel; The dual-mode channel unit consists of a 5G-R digital module, an 800MHz analog module, and a control unit. The 5G-R digital module and the 800MHz analog module are connected to the control unit via a control bus.

2. The wireless switching and internal communication system for railway locomotives at A and B ends according to claim 1, characterized in that: The locomotive A and B ends refer to the main operating end and auxiliary operating end or the auxiliary operating end and main operating end of the same locomotive.

3. A method for implementing the wireless switching and internal communication system for railway locomotives at ends A and B as described in claim 1, characterized in that, The steps are as follows: The automatic pairing steps for the synchronization devices at locomotives A and B are as follows: (a) After the ground server is powered on, it enters a standby state, waiting to receive integrated information from the synchronization devices at locomotives A and B. (ii) The synchronization device at locomotive A and B ends is turned on and enters the secondary operation end state. The "internal communication" button on the touch screen of the display control unit is disabled by default. Then the dual-mode channel unit is initialized. After obtaining the 5G-R network IP address, a comprehensive information command is sent to the ground server at 60-second intervals. The command includes: locomotive number, locomotive end number, 5G-R network IP address and 5G-R telephone number. (iii) After receiving the integrated information instruction from the synchronization device at locomotive A and B, the ground server extracts the locomotive number, locomotive terminal number, 5G-R network IP address and 5G-R telephone number, and generates a synchronization device ledger in the database. (iv) When the synchronization device at locomotive A or B is not paired, it sends a "query pairing information" command to the ground server every 30 seconds. The command includes: locomotive number and locomotive end number. (v) After receiving the "query pairing information" instruction, the ground server extracts the locomotive number and locomotive end number from the instruction and compares them with the records in the synchronization device ledger one by one. If the comparison is consistent, the 5G-R network IP address and 5G-R telephone number are extracted from the record and a "pairing information response" is sent to the synchronization device at locomotive end A or B. (vi) After the synchronization device at locomotive A or B receives the "pairing information response", it extracts and saves the 5G-R network IP and 5G-R telephone number from the instruction, completes the pairing, and displays the "internal call" button on the touch screen of the control unit to become enabled. The steps for wireless switching and internal communication between the synchronization devices at locomotive A and B ends are as follows: (i) After the automatic pairing of the synchronization device at locomotive A end or B end is completed, the driver shall press and hold the "Main Control" button on the touch screen of the display control unit for more than 3 seconds to send the "Request Master Operation Terminal" command through the 5G-R network channel and the 800MHz wireless analog channel. The command includes: locomotive number and locomotive end number. (ii) Upon receiving the "Request Master Operation Terminal" instruction, the synchronization device at locomotive B or A compares the locomotive number and locomotive terminal number carried in the instruction with its own locomotive number and locomotive terminal number. If the comparison finds that the instruction was sent by the synchronization device at locomotive A or B, it becomes the secondary operation terminal if it is currently the master operation terminal; otherwise, it remains the secondary operation terminal. Then, it notifies the locomotive radio to enter the secondary operation terminal state and sends the "Switch to Secondary Operation Terminal" instruction through the 5G-R network channel and the 800MHz wireless analog channel. This instruction includes the locomotive number and the locomotive terminal number. (iii) When the synchronization device at locomotive A or B receives the instruction to "switch to secondary operation terminal", it compares the locomotive number and locomotive terminal number carried in the instruction with its own locomotive number and locomotive terminal number. If the comparison finds that the instruction was sent by the synchronization device at locomotive B or A, the synchronization device at locomotive A or B switches to primary operation terminal and notifies the locomotive radio to enter primary operation terminal state. (iv) The driver operates the synchronization device at the A or B end of the locomotive and presses the "Internal Talk" button on the touch screen of the display control unit for more than 3 seconds to initiate a point-to-point internal call through the 5G-R network. After the synchronization devices at locomotive A and B are turned on, they are both set to secondary operation by default. When the driver is driving, he will switch the synchronization device at his own end to primary operation and notify the synchronization device at the other end to switch to secondary operation.

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