Charger remote control system and method

Abstract

The invention provides a remote control system for a charger. The remote control system comprises a 4G BOX module, a charger module and a cloud end, the 4G BOX module comprises a 4G communication module, a Bluetooth module, an MCU (Microprogrammed Control Unit) main control unit, an external FLASH memory and a CAN (Controller Area Network) interface; the charger module comprises a charger main control unit, a CAN communication unit, a parameter configuration unit and a firmware upgrading unit; the CAN interface communicates with the charger main control unit through a CAN bus and transmits a control instruction and state data; the CAN communication unit is used for receiving an instruction issued by the 4G BOX module and feeding back a real-time working state; the parameter configuration unit is used for dynamically loading charging curve parameters; and the firmware upgrading unit is used for verifying and burning a firmware package issued by the cloud and supporting differential upgrading to reduce the data transmission quantity, so that charger software dynamic updating, charging curve parameter remote configuration, real-time state monitoring and fault diagnosis are realized, and the charging safety and the equipment management efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chargers, and in particular to a charger remote control system and method. Background Art

[0002] The charging parameters of traditional chargers (such as voltage, current, temperature thresholds, etc.) are usually fixed in the local firmware and cannot be dynamically adjusted according to the battery status or user needs, resulting in poor compatibility and high maintenance costs. Although some chargers have introduced wireless communication functions (such as Bluetooth or Wi-Fi), their communication protocols and control architectures are still limited to local interaction and lack remote management capabilities. In addition, the firmware upgrades of existing chargers mostly rely on wired connections or a single communication interface, which has problems such as high upgrade failure rate and lack of real-time performance. Therefore, there is an urgent need for a charger intelligent management system that integrates wireless communication, bus control and cloud collaboration. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide a charger remote control system and method, which can realize dynamic update of charger software, remote configuration of charging curve parameters, real-time status monitoring and fault diagnosis, and improve charging safety and equipment management efficiency.

[0004] To solve the above technical problems, a charger remote control system provided by the present invention includes a 4GBOX module, a charger module, and a cloud; the 4G BOX module includes a 4G communication module, a Bluetooth module, an MCU main control unit, an external FLASH memory, and a CAN interface; the 4G communication module supports 4G / 5G networks and is used to receive upgrade packages, parameter configuration instructions, and diagnostic requests issued by the cloud; the Bluetooth module is used to pair with local devices and transmit emergency data; the MCU main control unit is used to coordinate the 4G communication module, the Bluetooth module, the CAN interface, and the external FLASH memory, and perform data parsing and instruction distribution; the external FLASH memory is used to cache upgrade packages and historical data, and supports breakpoint resumption and local backup; the charger module includes a charger main control unit, a CAN communication unit, a parameter configuration unit, and a firmware upgrade unit; the CAN interface communicates with the charger main control unit through the CAN bus and transmits control instructions and status data; the CAN communication unit is used to receive instructions issued by the 4G BOX module and feedback real-time working status; the parameter configuration unit is used to dynamically load charging curve parameters; the firmware upgrade unit is used to verify and burn the firmware package issued by the cloud, and supports differential upgrades to reduce data transmission volume.

[0005] Preferably, the real-time working status fed back by the CAN communication unit includes voltage, current, temperature, and state of charge.

[0006] Preferably, the charging curve parameters loaded by the parameter configuration unit include a constant current / constant voltage stage threshold and a safety protection threshold.

[0007] Preferably, the 4G BOX module further includes a 4G module SIM7600.

[0008] Preferably, the CAN interface uses a TJA1401 chip.

[0009] Preferably, the charger main control unit includes a main control chip STM32H7, a CAN controller, and an isolation transceiver ISO1050.

[0010] A charger remote control method, the control method includes a remote upgrade method, a parameter dynamic configuration method, and a real-time monitoring and diagnosis method, characterized in that:

[0011] The remote upgrade method includes the following steps:

[0012] a. Push the upgrade package to the 4G BOX module through the cloud, and then cache it to the external FLASH memory after verifying the file integrity through the MCU main control unit;

[0013] b. Send an upgrade request to the charger module via the CAN bus, and the charger module returns a confirmation signal;

[0014] c. The 4G BOX module transmits upgrade data packets in batches. The charger module verifies each packet and writes them into the external FLASH memory. After completion, the module restarts to take effect.

[0015] The parameter dynamic configuration method includes the following steps:

[0016] d. The cloud sends parameter configuration instructions, and the 4G BOX module parses and updates the charger parameter library via the CAN bus;

[0017] e. The charger module supports storage of multiple charging curves and automatically switches to the optimal solution based on the battery health status;

[0018] The real-time monitoring and diagnosis method includes the following steps:

[0019] f. The charger module periodically uploads working data to the 4G BOX module, which is then transmitted to the cloud for analysis via the 4G network;

[0020] g. Abnormal detection triggers an alarm, supports remote locking of the charger or activation of protection mechanisms.

[0021] The beneficial effects of the present invention are as follows: The present invention provides a charger remote control system and method, in which the 4G BOX module establishes communication with the charger module via the CAN bus to implement firmware upgrade package distribution, dynamic parameter configuration, and real-time status monitoring. Through a dual-mode communication architecture, the 4G network enables wide-area remote management, and the CAN bus ensures real-time local control, with the two being redundant. Through differential upgrade technology, only the firmware differences are transmitted, reducing bandwidth usage and the risk of upgrade failure. Its triple mechanism of cloud signature verification, CAN bus encrypted transmission, and charger local verification provides multi-level security protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall architecture diagram of the system of the present invention is illustrated.

[0023] Figure 2 The flowchart of the dynamic configuration of charger parameters of the present invention is illustrated.

[0024] Figure 3 The working flow diagram of the CAN bus of the present invention is illustrated.

[0025] Figure 4 The differential upgrade process diagram of the present invention is illustrated. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments.

[0027] Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

[0028] refer to Figure 1-4 .

[0029] The present invention provides a charger remote control system, comprising a 4G BOX module, a charger module, and a cloud; the 4GBOX module comprises a 4G communication module, a Bluetooth module, an MCU main control unit, an external FLASH memory, and a CAN interface; the 4G communication module supports 4G / 5G networks and is used to receive upgrade packages, parameter configuration instructions, and diagnostic requests issued by the cloud; the Bluetooth module is used for pairing with local devices and emergency data transmission; the MCU main control unit is used to coordinate the 4G communication module, the Bluetooth module, the CAN interface, and the external FLASH memory, and perform data parsing and instruction distribution; the external FLASH memory is used to cache upgrade packages and historical data, and supports breakpoint resume and local backup; the charger module comprises a charger main control unit, a CAN communication unit, a parameter configuration unit, and a firmware upgrade unit; the CAN interface communicates with the charger main control unit via a CAN bus and transmits control instructions and status data; the CAN communication unit is used to receive instructions issued by the 4G BOX module and provide feedback on real-time working status; the parameter configuration unit is used to dynamically load charging curve parameters; the firmware upgrade unit is used to verify and burn firmware packages issued by the cloud, and supports differential upgrades to reduce the amount of data transmission.

[0030] Based on the above embodiment, the real-time working status fed back by the CAN communication unit includes voltage, current, temperature, and state of charge.

[0031] Based on the above embodiment, the charging curve parameters loaded by the parameter configuration unit include a constant current / constant voltage stage threshold and a safety protection threshold.

[0032] Based on the above embodiment, the 4G BOX module further includes a 4G module SIM7600, which supports the TCP / IP protocol stack.

[0033] Based on the above embodiment, the CAN interface adopts the TJA1401 chip with a communication rate of 1 Mbps.

[0034] Based on the above embodiment, the charger main control unit includes a main control chip STM32H7, a CAN controller, and an isolation transceiver ISO1050. The 4G BOX module is connected via the isolation transceiver ISO1050.

[0035] The 4G BOX module establishes communication with the charger module via the CAN bus, enabling firmware upgrade package distribution, dynamic parameter configuration, and real-time status monitoring. Through a dual-mode communication architecture, the 4G network enables wide-area remote management, while the CAN bus ensures real-time local control, with the two providing redundancy. Differential upgrade technology only transmits the firmware differences, reducing bandwidth usage and the risk of upgrade failure. Its triple mechanism of cloud-based signature verification, CAN bus encrypted transmission, and local charger verification provides multi-level security protection.

[0036] A charger remote control method, the control method includes a remote upgrade method, a parameter dynamic configuration method, and a real-time monitoring and diagnosis method, characterized in that:

[0037] The remote upgrade method includes the following steps:

[0038] a. Push the upgrade package to the 4G BOX module through the cloud, and then cache it to the external FLASH memory after verifying the file integrity through the MCU main control unit;

[0039] b. Send an upgrade request to the charger module via the CAN bus, and the charger module returns a confirmation signal;

[0040] c. The 4G BOX module transmits upgrade data packets in batches. The charger module verifies each packet and writes them into the external FLASH memory. After completion, the module restarts to take effect.

[0041] The parameter dynamic configuration method includes the following steps:

[0042] d. The cloud sends parameter configuration instructions (such as battery type and charging mode), and the 4G BOX module parses and updates the charger parameter library via the CAN bus;

[0043] e. The charger module supports storage of multiple charging curves and automatically switches to the optimal solution based on the battery health status;

[0044] The real-time monitoring and diagnosis method includes the following steps:

[0045] f. The charger module periodically uploads working data to the 4G BOX module, which is then transmitted to the cloud for analysis via the 4G network;

[0046] g. Abnormal detection (such as overvoltage, overtemperature) triggers an alarm, supports remote locking of the charger or activation of protection mechanisms.

[0047] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A charger remote control system, characterized in that: The system comprises a 4G BOX module, a charger module, and a cloud. The 4GBOX module comprises a 4G communication module, a Bluetooth module, an MCU main control unit, an external FLASH memory, and a CAN interface. The 4G communication module supports 4G / 5G networks and is used to receive upgrade packages, parameter configuration instructions, and diagnostic requests issued by the cloud. The Bluetooth module is used for pairing with local devices and for emergency data transmission. The MCU main control unit is used to coordinate the 4G communication module, the Bluetooth module, the CAN interface, and the external FLASH memory, and to perform data parsing and instruction distribution. The external FLASH memory is used to cache upgrade packages and historical data, and supports breakpoint resume and local backup. The charger module comprises a charger main control unit, a CAN communication unit, a parameter configuration unit, and a firmware upgrade unit. The CAN interface communicates with the charger main control unit via the CAN bus and transmits control instructions and status data. The CAN communication unit is used to receive instructions issued by the 4G BOX module and provide real-time working status feedback. The parameter configuration unit is used to dynamically load charging curve parameters. The firmware upgrade unit is used to verify and burn the firmware package issued by the cloud, and supports differential upgrades to reduce data transmission volume.

2. A charger remote control system according to claim 1, characterized in that: The real-time working status fed back by the CAN communication unit includes voltage, current, temperature, and state of charge.

3. A charger remote control system according to claim 2, characterized in that: The charging curve parameters loaded by the parameter configuration unit include a constant current / constant voltage stage threshold and a safety protection threshold.

4. A charger remote control system according to claim 3, characterized in that: The 4GBOX module also includes a 4G module SIM7600.

5. A charger remote control system according to claim 4, characterized in that: The CAN interface uses the TJA1401 chip.

6. A charger remote control system according to claim 5, characterized in that: The charger main control unit includes a main control chip STM32H7, a CAN controller, and an isolation transceiver ISO1050.

7. A charger remote control method, comprising a remote upgrade method, a parameter dynamic configuration method, and a real-time monitoring and diagnosis method, characterized in that: The remote upgrade method comprises the following steps: a. Push the upgrade package to the 4G BOX module through the cloud, and then cache it to the external FLASH memory after verifying the file integrity through the MCU main control unit; b. Send an upgrade request to the charger module via the CAN bus, and the charger module returns a confirmation signal; c. The 4G BOX module transmits upgrade data packets in batches. The charger module verifies each packet and writes them into the external FLASH memory. After completion, the module restarts to take effect. The parameter dynamic configuration method comprises the following steps: d. The cloud sends parameter configuration instructions, and the 4G BOX module parses and updates the charger parameter library via the CAN bus; e. The charger module supports storage of multiple charging curves and automatically switches to the optimal solution based on the battery health status; The real-time monitoring and diagnosis method comprises the following steps: f. The charger module periodically uploads working data to the 4G BOX module, which is then transmitted to the cloud for analysis via the 4G network; g. Abnormal detection triggers an alarm, supports remote locking of the charger or activation of protection mechanisms.

Images