Vehicle-mounted remote control terminal and method

Abstract

The invention relates to the technical field of industrial automation control and vehicle-mounted equipment integration, and discloses a vehicle-mounted remote control terminal and method, and the vehicle-mounted remote control terminal comprises a multi-protocol communication module; a vehicle-mounted bus adaptation module; the core control module is internally provided with a task scheduling unit and a protocol analysis unit, and the task scheduling unit adopts a priority scheduling algorithm to preferentially process an emergency control instruction; the protocol analysis unit pre-stores analysis rules of various communication protocols and vehicle-mounted bus protocols and is used for identifying and analyzing various types of instructions; and the man-machine interaction module carries keys and a touch screen, is connected with the core control module and is used for providing a user interaction function. The method can guarantee the priority execution of the emergency control instruction, avoids response delay caused by instruction congestion, can directly adapt to a vehicle modification scene, does not need to greatly change an original vehicle bus system, is high in adaptability, and can be widely applied to the remote control of various vehicle-mounted equipment in logistics, engineering, special operation and the like.

Description

A vehicle-mounted remote control terminal and method Technical Field

[0001] This invention relates to the field of industrial automation control and vehicle-mounted equipment integration technology. Background Technology

[0002] With the development of industrial automation and vehicle intelligence, remote control terminals are increasingly used in vehicle modification and industrial vehicle equipment management. Existing vehicle remote control terminals have the following shortcomings: First, they rely on a single communication protocol, making them incompatible with various communication methods such as 5G / 4G, WiFi, and industrial Ethernet in different scenarios, and their switching efficiency is low, easily leading to control delays. Second, they have poor compatibility with vehicle buses; the CAN / LIN / Ethernet bus protocols differ significantly between different vehicle models / equipment, resulting in high terminal adaptation costs. Third, data transmission security is insufficient; remote control commands are easily intercepted and tampered with, posing a risk of misoperation of vehicle equipment. Fourth, the task scheduling mechanism is unreasonable; emergency control commands (such as fault alarms and braking control) are easily overwhelmed by low-priority commands, leading to response delays.

[0003] Although control terminals based on the C++ / Qt framework have applications in the field of industrial control, existing solutions have not been specifically designed for bus adaptation, multi-protocol communication switching and security encryption in vehicle scenarios, and cannot meet the requirements of low latency, high security and high adaptability for vehicle remote control. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle-mounted remote control terminal and method to solve the problems of high response latency, poor adaptability, and insufficient security of existing terminals.

[0005] To address the aforementioned technical problems, this invention provides a vehicle-mounted remote control terminal, comprising: a multi-protocol communication module integrating 5G / 4G, WiFi, Bluetooth, and industrial Ethernet communication interfaces for wireless communication; the 5G / 4G, WiFi, and Bluetooth interfaces are connected to a core control module, and the industrial Ethernet communication interface is connected to a vehicle bus adapter module; the vehicle bus adapter module has a built-in protocol conversion chip for bidirectional conversion between control commands and vehicle device data; the core control module has a built-in task scheduling unit and a protocol parsing unit; the task scheduling unit uses a priority scheduling algorithm to prioritize emergency control commands; the protocol parsing unit pre-stores parsing rules for various communication protocols and vehicle bus protocols to identify and parse various types of commands; and a human-machine interaction module equipped with buttons and a touch screen, connected to the core control module, for providing user interaction functions.

[0006] The protocol conversion chip built into the vehicle bus adapter module covers protocol conversion for CAN, LIN, and vehicle Ethernet buses.

[0007] The human-computer interaction module has a built-in security encryption module and an identity verification unit for authenticating human-computer interaction.

[0008] The security encryption module is implemented using the SM4 encryption chip.

[0009] The identity verification unit performs triple verification using device ID, key, and permissions.

[0010] The task scheduling unit sorts the parsed instructions according to priority rules.

[0011] This invention also provides a vehicle-mounted remote control method, employing the vehicle-mounted remote control terminal described above, comprising the following steps: S1, Encrypted connection establishment: The remote control terminal initiates a connection request to the terminal. The security encryption module sequentially verifies the device ID, key, and authorization. After all verifications are successful, an encrypted communication link is established; S2, Command reception and parsing: The core control module receives encrypted remote control commands through a multi-protocol communication module. The protocol parsing unit identifies the corresponding communication protocol and vehicle bus type based on the protocol identifier in the command header, and completes command decryption and parsing; S3, Priority task scheduling: The task scheduling unit sorts the parsed commands according to preset priority rules; S4, Command execution and feedback: The core control module converts the sorted commands into bus commands recognizable by the vehicle device through the vehicle bus adaptation module and sends them to the vehicle device; After the vehicle device executes the command, it feeds back the status data to the core control module, which then encrypts and sends it back to the remote control terminal.

[0012] In step S3, the bandwidth and latency of each communication link are monitored in real time to allocate priority communication resources to high-priority instructions.

[0013] In step S1, after all steps are passed, the SM4 algorithm is used to generate a session key to establish an encrypted communication link.

[0014] After step S4, the following steps are also included: S5, Abnormal handling: If the communication link is interrupted or the delay exceeds the standard, the multi-protocol communication module switches to the backup communication mode to improve control reliability. The core control module records the abnormal log and alerts the local operator through the sound and light alarm of the human-machine interaction module. If the switch fails, the local operator can achieve emergency control through physical buttons.

[0015] Compared with existing technologies, this invention can ensure the priority execution of emergency control commands, avoid response delays caused by command congestion, directly adapt to vehicle modification scenarios, without requiring significant modifications to the original vehicle bus system, has strong adaptability, and can be widely used in remote control of various vehicle-mounted equipment in logistics, engineering, special operations and other fields.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 is a connection diagram of at least one embodiment of the present invention; Figure 2 is a flowchart of at least one embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are presented in the embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the following embodiments is for ease of description and should not constitute any limitation on the specific implementation of this invention. The embodiments can be combined with and referenced by each other without contradiction.

[0020] Example 1, as shown in Figure 1, is a vehicle-mounted remote control terminal, comprising: a multi-protocol communication module integrating 5G / 4G, WiFi, Bluetooth, and industrial Ethernet communication interfaces for wireless communication; the 5G / 4G, WiFi, and Bluetooth interfaces are connected to the core control module, and the industrial Ethernet communication interface is connected to the vehicle bus adapter module; the vehicle bus adapter module has a built-in protocol conversion chip for bidirectional conversion between control commands and vehicle device data; the core control module has a built-in task scheduling unit and a protocol parsing unit; the task scheduling unit uses a priority scheduling algorithm to prioritize emergency control commands; the protocol parsing unit pre-stores parsing rules for various communication protocols and vehicle bus protocols to identify and parse various types of commands; and a human-machine interaction module equipped with buttons and a touch screen, connected to the core control module, for providing user interaction functions.

[0021] Example 2 is based on Example 1. The protocol conversion chip built into the vehicle bus adapter module covers the protocol conversion of CAN, LIN and vehicle Ethernet bus.

[0022] Furthermore, the human-computer interaction module has a built-in security encryption module and an identity verification unit for authenticating human-computer interaction.

[0023] Furthermore, the security encryption module is implemented using the SM4 encryption chip.

[0024] Furthermore, the identity verification unit performs triple verification using device ID, key, and permissions.

[0025] Furthermore, the task scheduling unit sorts the parsed instructions according to priority rules.

[0026] Example 3, as shown in Figure 2, is a vehicle-mounted remote control method using Examples 1 and / or 3, and includes the following steps: S1, Encrypted Connection Establishment: The remote control terminal initiates a connection request to the terminal. The security encryption module sequentially verifies the device ID, key, and permissions. After all verifications are successful, an encrypted communication link is established. S2, Command Reception and Parsing: The core control module receives encrypted remote control commands through the multi-protocol communication module. The protocol parsing unit identifies the corresponding communication protocol and vehicle bus type based on the protocol identifier in the command header, and completes command decryption and parsing. S3, Priority Task Scheduling: The task scheduling unit sorts the parsed commands according to preset priority rules. S4, Command Execution and Feedback: The core control module converts the sorted commands into bus commands recognizable by the vehicle device through the vehicle bus adaptation module and sends them to the vehicle device. After executing the commands, the vehicle device feeds back status data to the core control module, which then encrypts and sends it back to the remote control terminal.

[0027] Example 4 is based on Example 3. In step S3, the bandwidth and latency of each communication link are monitored in real time to allocate priority communication resources to high-priority instructions.

[0028] Furthermore, in step S1, after all steps pass, the SM4 algorithm is used to generate a session key to establish an encrypted communication link.

[0029] Furthermore, after step S4, the following steps are also included: S5, Abnormal handling: If the communication link is interrupted or the delay exceeds the standard, the multi-protocol communication module switches to the backup communication mode, the core control module records the abnormal log, and alerts the local operator through the sound and light alarm of the human-machine interaction module; if the switch fails, the local operator can achieve emergency control through physical buttons.

[0030] Example 5, in conjunction with the above examples, describes a vehicle-mounted remote control terminal comprising a core control module, a multi-protocol communication module, a vehicle bus adaptation module, a security encryption module, and a human-machine interaction module: 1. Core Control Module: As the core processing unit of the terminal, it is developed based on the C++ / Qt framework and includes a built-in task scheduling unit and a protocol parsing unit. The task scheduling unit employs a priority scheduling algorithm to prioritize emergency control commands; the protocol parsing unit pre-stores parsing rules for various communication protocols and vehicle bus protocols, and can automatically identify and parse different types of commands.

[0031] 2. Multi-protocol communication module: integrates 5G / 4G, WiFi, Bluetooth and industrial Ethernet communication interfaces, supports real-time monitoring and automatic switching of multiple communication methods, and automatically switches to the backup communication link when the delay of the current communication method exceeds the threshold.

[0032] 3. Vehicle Bus Adapter Module: It has a built-in protocol conversion chip for CAN, LIN and vehicle Ethernet buses, which can automatically match the communication protocol according to the bus type of the vehicle equipment to realize bidirectional conversion between control commands and vehicle equipment data.

[0033] 4. Security Encryption Module: The SM4 algorithm is used to encrypt the transmitted control commands and status data end-to-end. At the same time, an identity verification unit is configured to verify the legitimacy of the remote control terminal through triple verification of device ID, key and permission to prevent unauthorized access.

[0034] 5. Human-machine interaction module: Includes a touch display interface and physical emergency buttons. The touch interface can display the status of the vehicle equipment and communication link information, while the physical buttons can enable local emergency control in case of remote communication failure.

[0035] The vehicle-mounted remote control method includes the following steps: S1. Encrypted connection establishment: The remote control terminal initiates a connection request to the terminal. The security encryption module performs device ID verification, key verification, and permission verification in sequence. After all verifications are successful, the SM4 algorithm is used to generate a session key and establish an encrypted communication link.

[0036] S2. Command Reception and Parsing: The core control module receives encrypted remote control commands through the multi-protocol communication module. The protocol parsing unit identifies the corresponding communication protocol and vehicle bus type based on the protocol identifier in the command header, and completes command decryption and parsing.

[0037] S3. Priority Task Scheduling: The task scheduling unit sorts the parsed instructions according to preset priority rules (such as braking command > fault alarm command > parameter adjustment command), and at the same time monitors the bandwidth and latency of each communication link in real time, allocating priority communication resources to high-priority instructions.

[0038] S4. Command Execution and Feedback: The core control module converts the sorted commands into bus commands that can be recognized by the vehicle equipment through the vehicle bus adapter module and sends them to the vehicle equipment; after the vehicle equipment executes the command, it feeds back the status data to the core control module, which then encrypts and sends it back to the remote control terminal.

[0039] S5. Abnormal Handling: If the communication link is interrupted or the delay exceeds the limit, the multi-protocol communication module will automatically switch to the backup communication mode, the core control module will record the abnormality log, and the local operator will be notified by the sound and light alarm of the human-machine interaction module; if the switch fails, the local operator can achieve emergency control through physical buttons.

[0040] Example 6: In conjunction with the above examples, the core control module adopts ARM. The embedded processor features a Cortex-A53 architecture (1.8GHz), control logic built on C++ / Qt 5.15, and an integrated Ubuntu 20.04 operating system. The multi-protocol communication module utilizes Huawei's MH5000 5G module, Espressif's ESP32-C6 WiFi 6 module, and Renesas' RZ / T2M industrial Ethernet chip, supporting automatic switching between 5G / 4G, WiFi, and Ethernet with a switching response time ≤50ms. The vehicle bus adapter module employs TI's SN65HVD230 CAN / LIN conversion chip and DP83TC811 vehicle Ethernet chip, with a protocol conversion latency ≤10ms. The security encryption module integrates the SSX10B SM4 encryption chip, offering encryption / decryption rates ≥100Mbps, and includes an identity verification storage unit (128MB Flash capacity) pre-stored with the device ID and key of the legitimate control terminal. The human-machine interface module features a 7-inch IPS touchscreen LCD (1024×600 resolution) with three physical emergency buttons (emergency braking, fault reset, and local / remote switching), with a button response time ≤20ms.

[0041] Connection relationships of each module: The GPIO port of the core control module is connected to the UART interface of the multi-protocol communication module, the SPI interface of the vehicle bus adapter module, and the I2C interface of the security encryption module, respectively; the human-machine interaction module communicates with the core control module through the RS232 serial port; the bus interface of the vehicle bus adapter module is connected to the CAN / LIN / Ethernet bus of the vehicle equipment; the multi-protocol communication module establishes communication with the remote control terminal through an antenna / network cable.

[0042] Example 7 This example applies to the remote monitoring and control scenario of a 4.2-meter logistics transport vehicle. The terminal is integrated into the driver's cab of the transport vehicle and is compatible with the vehicle's existing CAN bus system: L1. The remote control terminal (logistics management platform) initiates a connection request to the terminal via the 4G network. The request data packet contains the platform device ID, the SM4-encrypted key, and "vehicle status monitoring + parameter adjustment" permission information; L2. The security encryption module sequentially completes the device ID whitelist verification (matching the pre-stored logistics platform exclusive ID), key comparison (consistent with the locally stored platform key), and permission verification (confirming that it has the monitoring / adjustment permission for the transport vehicle). After successful verification, a session key is generated, and an encrypted communication link is established; L3. The remote control terminal issues a control command (normal priority) to "close the passenger-side window of the transport vehicle". The command is encrypted with SM4 and transmitted to the multi-protocol communication module via the 4G network; L4. Core control module The protocol parsing unit identifies the instruction communication protocol as 4G and the vehicle bus type as CAN bus, decrypts and parses the instruction content; L5. The task scheduling unit determines that there is no high-priority instruction, directly converts the instruction into a CAN bus instruction, and sends it to the window control unit through the vehicle bus adapter module; L6. After the window is closed, the window control unit feeds back the "closing completed" status data to the core control module, which encrypts it and sends it back to the logistics management platform. The platform interface displays "passenger window closed" in real time; L7. If the transport vehicle enters a tunnel and causes the 4G signal to be interrupted (delay > 100ms), the multi-protocol communication module automatically switches to the in-vehicle WiFi (pre-connected to the logistics company's dedicated WiFi hotspot). The core control module displays "communication link switched to WiFi" on the human-machine interface, without alarm prompts (non-emergency scenarios). After the link switch is completed, it continues to receive the platform's location monitoring instructions.

[0043] Example 8: This example applies to a remote operation control scenario for a mining excavator. The terminal is adapted to the excavator's LIN bus system and needs to handle high-priority braking and fault alarm commands: 1. The remote control terminal (mining control center) initiates a connection request to the excavator terminal via the 5G network. After the security encryption module completes triple verification, an encrypted communication link is established; 2. During excavator operation, the fault monitoring sensor detects abnormal hydraulic system pressure and sends a "hydraulic pressure over-limit" fault alarm command to the terminal (highest priority). At the same time, the remote control center issues a parameter adjustment command to "adjust hydraulic flow to 15L / min" (medium priority); 3. The task scheduling unit of the core control module prioritizes the processing of the fault alarm command, suspends the processing of the parameter adjustment command, and allocates all 5G communication bandwidth to the fault alarm command; 4. After protocol parsing, the fault alarm command is sent to the excavator's hydraulic control system through the LIN protocol conversion unit of the vehicle bus adapter module. At the same time, the core control module encrypts the fault information and sends it back to the control center at high speed (transmission delay ≤30ms); 5. After receiving the fault information, the control center issues an "emergency braking" command. 6. Upon receiving the "Move" command (highest priority), the task scheduling unit immediately executes the command. The excavator's hydraulic control system then completes braking to prevent equipment damage. 7. After braking, the task scheduling unit resumes processing parameter adjustment commands, adjusting the hydraulic flow to the specified value. Once the hydraulic system pressure returns to normal, the fault alarm is cleared, and the terminal sends status data back to the control center. 8. If the 5G network is interrupted due to mine terrain obstruction, the multi-protocol communication module automatically switches to industrial Ethernet (connected via a mine wired base station). During the switching process, the core control module issues an audible and visual alarm to alert the local excavator operator to monitor the status. Remote control resumes after the switch is complete.

[0044] Therefore, this invention integrates a multi-protocol communication module, supporting automatic switching between various communication methods such as 5G / 4G, WiFi, and industrial Ethernet, adapting to the communication needs of different vehicle-mounted scenarios such as logistics vehicles and engineering vehicles, with a switching response time of ≤50ms, significantly reducing control latency; the vehicle bus adaptation module is compatible with CAN / LIN / vehicle Ethernet bus protocols, eliminating the need to develop separate adaptation programs for different vehicle models / equipment, reducing adaptation costs by more than 60%; the security encryption module adopts the SM4 algorithm and a triple identity verification mechanism, with an encryption / decryption rate of ≥100Mbps, effectively preventing unauthorized access and data tampering, and improving the security of remote control; the priority task scheduling algorithm of the core control module ensures the priority execution of emergency control commands, avoiding response delays caused by command congestion, with command execution latency of ≤30ms in emergency braking scenarios of engineering vehicles, improving control reliability; it can be directly adapted to vehicle modification scenarios without significant modifications to the original vehicle bus system, has strong adaptability, and can be widely used in the remote control of various vehicle-mounted equipment in logistics, engineering, and special operations.

[0045] Those skilled in the art will understand that the above embodiments can be modified in form and detail in practical applications without departing from the spirit and scope of the invention.

Claims

1. A vehicle-mounted remote control terminal, characterized in that, include: The multi-protocol communication module integrates 5G / 4G, WiFi, Bluetooth, and industrial Ethernet communication interfaces for wireless communication. The 5G / 4G, WiFi, and Bluetooth interfaces connect to the core control module, while the industrial Ethernet communication interface connects to the vehicle bus adapter module. The vehicle bus adapter module has a built-in protocol conversion chip for bidirectional conversion between control commands and vehicle device data. The core control module has a built-in task scheduling unit and protocol parsing unit. The task scheduling unit uses a priority scheduling algorithm to prioritize emergency control commands. The protocol parsing unit pre-stores parsing rules for various communication protocols and vehicle bus protocols to identify and parse various types of commands. The human-machine interaction module, equipped with buttons and a touch screen, connects to the core control module to provide user interaction functions.

2. The vehicle-mounted remote control terminal as described in claim 1, characterized in that, The protocol conversion chip built into the vehicle bus adapter module covers protocol conversion for CAN, LIN, and vehicle Ethernet buses.

3. The vehicle-mounted remote control terminal as described in claim 1, characterized in that, The human-computer interaction module has a built-in security encryption module and an identity verification unit for authenticating human-computer interaction.

4. The vehicle-mounted remote control terminal as described in claim 3, characterized in that, The security encryption module is implemented using the SM4 encryption chip.

5. The vehicle-mounted remote control terminal as described in claim 3, characterized in that, The identity verification unit performs triple verification using device ID, key, and permissions.

6. The vehicle-mounted remote control terminal as described in claim 1, characterized in that, The task scheduling unit sorts the parsed instructions according to priority rules.

7. A vehicle-mounted remote control method, characterized in that, The vehicle-mounted remote control terminal as described in any one of claims 1 to 6 includes the following steps: S1, Encrypted connection establishment: The remote control terminal initiates a connection request to the terminal. The security encryption module sequentially verifies the device ID, key, and authorization. After all verifications are successful, an encrypted communication link is established; S2, Command reception and parsing: The core control module receives encrypted remote control commands through the multi-protocol communication module. The protocol parsing unit identifies the corresponding communication protocol and vehicle bus type based on the protocol identifier in the command header, and completes command decryption and parsing; S3, Priority task scheduling: The task scheduling unit sorts the parsed commands according to preset priority rules; S4, Command execution and feedback: The core control module converts the sorted commands into bus commands recognizable by the vehicle device through the vehicle bus adaptation module and sends them to the vehicle device. After the vehicle device executes the command, it feeds back the status data to the core control module, which then encrypts and sends it back to the remote control terminal.

8. The vehicle-mounted remote control terminal and method as described in claim 1, characterized in that, In step S3, the bandwidth and latency of each communication link are monitored in real time to allocate priority communication resources to high-priority instructions.

9. The vehicle-mounted remote control terminal and method as described in claim 1, characterized in that, In step S1, after all steps are passed, the SM4 algorithm is used to generate a session key to establish an encrypted communication link.

10. The vehicle-mounted remote control terminal and method as described in claim 1, characterized in that, After step S4, the following steps are also included: S5, Abnormal handling: If the communication link is interrupted or the delay exceeds the standard, the multi-protocol communication module switches to the backup communication mode, the core control module records the abnormal log, and alerts the local operator through the sound and light alarm of the human-machine interaction module; if the switch fails, the local operator can achieve emergency control through physical buttons.

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