Method for Clearing Faults of Electric Vehicle Chargers Based on a Cloud Platform Control Center

Abstract

The present invention discloses a method for clearing faults of an electric vehicle charging pile based on a cloud platform control center, which relates to the technical field of electric vehicle charging piles. The present invention adopts a distributed architecture, with the platform as the control center and the terminal as the instruction execution mechanism. It can flexibly configure algorithmic logics and parameters according to the types and characteristics of charging field devices; integrates standardized operation and maintenance specifications, forms different remote operation and maintenance control algorithms for different types of charging piles, and has functions such as simulating the pressing of the emergency stop button and monitoring the emergency stop state, remotely controlling the reset of the emergency stop, and remotely simulating the pressing of the emergency stop switch. By integrating the operation and maintenance process control logic algorithm through the platform, simulating the work specifications of operation and maintenance personnel going to the site for operation and maintenance, and controlling the on-site terminal to remotely operate and maintain the charging pile under the condition of ensuring safety, all non-hardware faults are eliminated. At the same time, the emergency stop reset can also be controlled remotely, reducing the operation and maintenance cost, improving the operation and maintenance efficiency, reducing the failure rate of the charging pile, and increasing the utilization rate of the charging pile.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging piles, and particularly relates to a method for clearing faults of an electric vehicle charging pile based on a cloud platform control center. Background Art

[0002] As the main energy replenishment equipment for electric vehicles, electric vehicle charging piles are widely distributed, numerous, highly integrated, high-power, and can be adapted to electric vehicles of various manufacturers. Various abnormal fault warnings will occur during actual use. The fault types are mainly divided into two categories:

[0003] 1. Faults reported by the charging pile body. For the faults reported by the charging pile body, in many cases, they are software anomalies, alarms, etc. caused by the charging pile during long-term operation or during the matching process with different vehicles. At this time, it is necessary for the operation and maintenance personnel to go to the site and perform operation and maintenance according to certain operation specifications to eliminate the faults.

[0004] 2. Emergency stop button press faults caused by humans. The current management mode of the charging field basically adopts an unmanned management mode. In the process of using, users generally press the emergency stop switch to deal with some emergencies, or some people maliciously press the emergency stop switch. This requires the operation and maintenance personnel to go to the site for operation and maintenance and reset the emergency stop switch.

[0005] For the first problem, the current traditional method is for the operation and maintenance personnel to go to the site for operation and maintenance or install a charging pile monitoring device with a reset function inside the charging pile. The method of manual on-site operation has low maintenance timeliness and high maintenance costs; the method of installing a charging pile monitoring device with a reset function inside the charging pile has the following main problems:

[0006] 1. The applicable range is small, and it can only meet the integrated charging piles. Many faults are not applicable to the split charging piles, but most of the charging piles in public charging fields on the market are split charging piles, which is also the development direction.

[0007] 2. It does not operate according to the operation and maintenance specifications of manual on-site operation and cannot achieve the effect of on-site personnel;

[0008] 3. It is not designed based on the charging pile architecture and cannot guarantee the security of remote operation and maintenance.

[0009] For the second problem, basically the current method is to adopt the method of on-site maintenance by personnel. Summary of the Invention

[0010] Aiming at the deficiencies in the existing technology, the purpose of the present invention is to provide a method for clearing faults of electric vehicle charging piles based on a cloud platform control center. By integrating the operation and maintenance process control logic algorithm on the platform, simulating the work specifications of on-site operation and maintenance personnel, remotely operating and maintaining the charging piles at the site while ensuring safety, eliminating all non-hardware faults, and also controlling the emergency stop reset remotely, reducing the operation and maintenance costs, improving the operation and maintenance efficiency, reducing the failure rate of the charging piles, and increasing the utilization rate of the charging piles.

[0011] To achieve the above object, the present invention is realized through the following technical solutions: A method for clearing faults of electric vehicle charging piles based on a cloud platform control center, including a platform and a terminal, adopting a distributed architecture. The platform serves as the control center for remote fault clearing, and the terminal serves as the instruction execution mechanism. It is characterized in that it specifically includes the following steps:

[0012] (1) On-site installation: Determine whether the charging pile is an integrated type or a split type, and install it according to the electrical installation schematic diagram. After installation, bind the code of the fault clearing instrument, the type of the charging pile, and the code of the charging pile to the platform; According to the type and characteristics of the charging field equipment, flexibly configure the algorithm logic and parameters personalized.

[0013] (2) Fault clearing by the platform control center: Integrate standardized operation and maintenance specifications, and form different remote operation and maintenance control algorithms for different types of charging piles; According to the reported fault code of the charging pile, perform remote operation and maintenance on it and display each stage of the operation and maintenance control in real time;

[0014] (3) Simulating the emergency stop button press and monitoring the emergency stop state by the fault clearing instrument: Ensure the safety of the remote operation and maintenance process (adopt remote control of the emergency stop reset to remotely release the emergency stop button; adopt the function of remotely simulating the pressing of the emergency stop switch to remotely respond to emergencies).

[0015] Preferably, the fault clearing instrument, as the terminal, includes an MCU unit, a 4G communication module unit, an auxiliary power current detection unit, an emergency stop switch state monitoring unit, a relay unit, and a 485 communication unit. The MCU unit is respectively connected to the 4G communication module unit and the 485 communication unit. The 485 communication unit is connected to the emergency stop reset unit. The auxiliary power current detection unit and the emergency stop switch state monitoring unit are both connected to the MCU unit. The MCU unit is connected to the first relay of the relay unit through the auxiliary power IO port. The MCU unit is connected to the second relay of the relay unit through the emergency stop button IO port. The MCU unit is also connected to the power supply unit, and the power supply unit is connected to the AC-DC unit.

[0016] Preferably, the fault eliminator is capable of remotely receiving instructions to cut off and supply power to the auxiliary power supply of the charging pile through remote control, so as to reset the charging pile; capable of remotely receiving instructions to implement the function of pressing the emergency stop switch of the charging pile by opening and closing the relay, so as to remotely respond to emergencies; capable of real-time monitoring the current status of the charging pile control system and uploading it to the platform to assist in monitoring the operating status; capable of remotely receiving instructions to interact with the emergency stop reset unit through 485 to implement remote control of the emergency stop switch reset and avoid on-site operation and maintenance.

[0017] Preferably, the implementation steps of the auxiliary power current detection unit of the fault eliminator are as follows:

[0018] 1. Detect the current of the auxiliary power supply of the charging pile through a current transformer;

[0019] 2. Amplify the signal through an operational amplifier;

[0020] 3. Perform low-pass filtering on the signal and output it to the AD sampling port of the MCU;

[0021] 4. Sample and digitally filter the current signal of the MCU to calculate the current signal.

[0022] The implementation steps of the emergency stop switch status detection unit are as follows:

[0023] 1. Input the voltage at both ends of the emergency stop in a common-mode manner into the operational amplifier;

[0024] 2. Adjust and output the signal;

[0025] 3. Perform low-pass filtering on the adjusted voltage signal and output it to the AD sampling port of the MCU;

[0026] 4. Sample and digitally filter the current signal of the MCU to calculate the voltage at both ends of the emergency stop switch.

[0027] Preferably, the implementation steps of the 4G communication module unit are as follows:

[0028] 1. Power on the module;

[0029] 2. The MCU configures the module through the URAT port and connects to the server;

[0030] 3. Establish a long connection with the server;

[0031] 4. Send information such as the self-check status of the server-side terminal device, the status of each relay unit, the current value of the auxiliary power supply, and the voltage value at both ends of the emergency stop switch;

[0032] 5. Receive instructions sent by the server.

[0033] Preferably, the implementation steps of the MCU unit are as follows:

[0034] 1. Sample the current of the current detection module of the charging pile auxiliary power supply;

[0035] 2. Sample the voltage of the emergency stop switch detection unit;

[0036] 3. Receive and parse the data sent by the 4G communication module unit;

[0037] 4. Remotely simulate the pressing of the emergency stop button according to the parsed control state of the emergency stop button relay to disconnect or close;

[0038] 5. Control the overall power-off and power-on of the charging pile control system according to the parsed control state of the auxiliary power relay to disconnect or close;

[0039] 6. Communicate with the emergency stop reset unit through the 485 communication port to control the emergency stop reset unit to receive the reset;

[0040] 7. Upload the on-site control status and parameter status to the platform in real time through the 4G communication module unit.

[0041] Preferably, the specific implementation steps of the on-site implementation and installation are as follows:

[0042] 1. Determine the type of the charging pile;

[0043] 2. If it is an integrated charging pile, install it according to the electrical installation diagram of the integrated charging pile;

[0044] 3. If it is a split charging pile, install the front box according to the electrical installation schematic diagram of the front box of the split charging pile; install the rear box according to the electrical installation schematic diagram of the rear box of the split charging pile;

[0045] 4. After the installation is completed, bind the codes of the fault eliminator, the type of the charging pile, and the code of the charging pile to the platform. After completion, remote operation and maintenance can be implemented.

[0046] Preferably, the control process of the fault elimination platform for the integrated charging pile is as follows:

[0047] 1. Select the charging pile code to be cleared of faults on the WEB side;

[0048] 2. The platform issues an instruction to query the device status of the fault eliminator corresponding to the charging pile code;

[0049] 3. Wait for a timeout to check if there is a feedback status and if the device is normal;

[0050] 4. If it is not normal, display that the device is abnormal and the device fault elimination fails;

[0051] 5. If it is normal, issue an instruction to control the emergency stop relay to close, simulating pressing the emergency stop switch;

[0052] 6. Wait for 20S in timeout. Judge the status of the emergency stop switch. If it is abnormal, prompt that the failure elimination fails and enter the recovery process;

[0053] 7. If it is normal, control the main control relay to disconnect;

[0054] 8. Wait for 120S to judge whether the current status of the auxiliary power supply of the charging pile reported by the terminal is normal;

[0055] 9. If it is not normal, restore the emergency stop switch, enter the recovery process, indicate that the remote failure eliminator is abnormal, and the remote failure elimination fails;

[0056] 10. If it is normal, control the main control to close and wait for 60S;

[0057] 11. Judge whether the power-on is normal. If it is abnormal, prompt that the eliminator device is abnormal and enter the recovery process;

[0058] 12. If it is normal, disconnect the emergency stop relay switch, wait for 20S, and let everything on site return to normal;

[0059] 13. Indicate that the failure elimination is completed.

[0060] Preferably, the remote failure elimination control process of the front-end box of the split-type charging pile is as follows:

[0061] 1. Select the charging pile code to be cleared of faults on the WEB side;

[0062] 2. Select only front-end failure elimination;

[0063] 3. The platform issues an instruction to query the device status of the failure eliminator corresponding to the charging pile code;

[0064] 4. Wait for feedback status in timeout to check if the device is normal;

[0065] 5. If it is not normal, display that the device is abnormal and the device restart fails;

[0066] 6. If it is normal, issue an instruction to control the emergency stop relay to close, simulating pressing the emergency stop switch;

[0067] 7. Wait for 20S in timeout. Judge the status of the emergency stop switch. If it is abnormal, prompt that the restart fails and enter the recovery process;

[0068] 8. If it is normal, control the main control relay to disconnect;

[0069] 9. Wait for 120S to judge whether the current status of the auxiliary power supply of the charging pile reported by the terminal is normal;

[0070] 10. If it is abnormal, restore the emergency stop switch, indicate that the remote fault eliminator is abnormal, the remote fault elimination fails, and enter the recovery process;

[0071] 11. If it is normal, control the main control to close and wait for 60S;

[0072] 12. Judge whether the power-on is normal. If it is abnormal, prompt that the eliminator device is abnormal and enter the recovery process;

[0073] 13. If it is normal, disconnect the emergency stop relay switch and wait for 20S to make everything on-site return to normal;

[0074] 14. If it is normal, indicate that the fault elimination is completed.

[0075] Preferably, the overall remote fault elimination control process of the split-type charging pile is as follows:

[0076] 1. Select the code of the charging pile to be eliminated on the WEB side;

[0077] 2. Select overall fault elimination;

[0078] 3. Automatically match the charging pile group according to the binding;

[0079] 4. Send commands in sequence to judge the status of the bound fault eliminator;

[0080] 5. Perform timeout judgment. If any device in the group is abnormal, interrupt the fault elimination, prompt that the corresponding fault eliminator is abnormal, and enter the recovery process;

[0081] 6. If everything is normal, control the emergency stop relays of the split-type charging piles to close in sequence;

[0082] 7. Wait for 20S in timeout and judge the status of each front-end emergency stop switch in sequence;

[0083] 8. If there is any abnormality among them, prompt that the corresponding fault eliminator is abnormal, enter the recovery process, and prompt that the fault elimination fails after completion;

[0084] 9. If it is normal, control the main control relays of each front-end pile body to disconnect;

[0085] 10. Wait for 20S in timeout and judge whether each front-end device is powered off successfully;

[0086] 11. If any one of the operations fails, enter the recovery process and prompt that the elimination fails;

[0087] 12. If it is normal, control the main control relay at the back end to disconnect;

[0088] 13. Wait for 120S to judge whether the main control at the back end is powered off successfully;

[0089] 14. If the power-off fails, enter the recovery process, and at the same time display that the fault eliminator is abnormal and display that the elimination fails;

[0090] 15. If the main control at the back end is powered on normally;

[0091] 16. Wait for 60S to determine whether the main control at the back end resumes power-on;

[0092] 17. If it is abnormal, enter the recovery process and indicate that the device is abnormal;

[0093] 18. If it is normal, control the main controls at the front end to be powered on;

[0094] 19. Wait for 60S with a timeout to determine whether the main control systems at the front end are normal;

[0095] 20. If it is abnormal, enter the recovery process, summarize and display the cause of the fault, and prompt that the elimination fails;

[0096] 21. If it is normal, control the emergency stop relays at the front end to be disconnected;

[0097] 22. Wait for 20S to determine whether the emergency stop has returned to normal. If all are normal, indicate that the elimination is successful. If it fails, indicate failure and display the reason.

[0098] The present invention has the following beneficial effects:

[0099] 1. The present invention adopts a distributed architecture, with the platform as the control center and the terminal as the instruction execution mechanism, and can flexibly configure the algorithm logic and parameters according to the types and characteristics of the charging field equipment;

[0100] 2. The platform of the present invention outputs corresponding operation and maintenance algorithms according to the on-site manual operation specifications for different types of charging piles, achieving the effect of on-site operation and maintenance 100% and eliminating all non-hardware faults;

[0101] 3. The present invention has the functions of simulating the emergency stop button press and monitoring the emergency stop state, ensuring the safety of the remote operation and maintenance process;

[0102] 4. The present invention has a wide range of applications. Compared with traditional detection and reset devices, this method is applicable to both integrated charging piles and split charging piles;

[0103] 5. The present invention is equipped with an emergency stop reset unit to remotely release and reset the pressed emergency stop switch. Description of the Drawings

[0104] The present invention will be described in detail below in conjunction with the drawings and specific embodiments;

[0105] Figure 1It is the system framework diagram of the present invention;

[0106] Figure 2 It is the hardware architecture diagram of the charging pile fault eliminator of the present invention;

[0107] Figure 3 It is the electrical installation schematic diagram of the integrated charging pile of the present invention;

[0108] Figure 4 It is the electrical installation schematic diagram of the front box of the split charging pile of the present invention;

[0109] Figure 5 It is the electrical installation schematic diagram of the rear box of the split charging pile of the present invention;

[0110] Figure 6 It is the remote fault elimination control flow chart of the integrated charging pile of the present invention;

[0111] Figure 7 It is the remote fault elimination control flow chart of the front box of the split charging pile of the present invention;

[0112] Figure 8a and Figure 8b It is the overall remote fault elimination control flow chart of the split charging pile of the present invention. Specific embodiments

[0113] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0114] Refer to Figure 1-2 , the following technical solutions are adopted in this specific embodiment: A method for eliminating faults of an electric vehicle charging pile based on a cloud platform control center, including a platform and a terminal. The platform serves as the control center for remote fault elimination, and specifically includes the following steps:

[0115] 1. On-site implementation and installation;

[0116] 2. The fault elimination operation process of the platform control center.

[0117] 3. The control process of the fault eliminator.

[0118] The described fault clearing instrument, as a terminal, includes an MCU unit, a 4G communication module unit, an auxiliary power supply current detection unit, an emergency stop switch status monitoring unit, a relay unit, and a 485 communication unit. The MCU unit is respectively connected to the 4G communication module unit and the 485 communication unit. The 485 communication unit is connected to the emergency stop reset unit. The auxiliary power supply current detection unit and the emergency stop switch status monitoring unit are both connected to the MCU unit. The MCU unit is connected to the first relay of the relay unit through the auxiliary power supply IO port, and the MCU unit is connected to the second relay of the relay unit through the emergency stop button IO port. The MCU unit is also connected to the power supply unit, and the power supply unit is connected to the AC-DC unit.

[0119] The implementation steps of the auxiliary power supply current detection unit of the described fault clearing instrument are as follows:

[0120] 1. Detect the current of the charging pile auxiliary power supply through a current transformer;

[0121] 2. Amplify the signal through an operational amplifier;

[0122] 3. Perform low-pass filtering on the signal and output it to the AD sampling port of the MCU;

[0123] 4. Sample the current signal of the MCU, perform digital filtering, and calculate the current signal.

[0124] The implementation steps of the emergency stop switch status detection unit are as follows:

[0125] 1. Input the voltage across the emergency stop in a common-mode manner to the operational amplifier;

[0126] 2. Output by adjusting the voltage of the signal;

[0127] 3. Perform low-pass filtering on the adjusted voltage signal and output it to the AD sampling port of the MCU;

[0128] 4. Sample the current signal of the MCU, perform digital filtering, and calculate the voltage across the emergency stop switch.

[0129] The implementation steps of the 4G communication module unit are as follows:

[0130] 1. Power on the module;

[0131] 2. The MCU configures the module through the URAT port and connects to the server;

[0132] 3. Establish a long connection with the server;

[0133] 4. Send information such as the self-check status of the server-side terminal device, the status of each relay unit, the current value of the auxiliary power supply, and the voltage value across the emergency stop switch;

[0134] 5. Receive the instruction sent by the server.

[0135] The implementation steps of the MCU unit are as follows:

[0136] 1. Sample the current of the charging pile auxiliary power supply current detection module;

[0137] 2. Sample the voltage of the emergency stop switch detection unit;

[0138] 3. Receive and parse the data sent by the 4G communication module unit;

[0139] 4. Remotely simulate the pressing of the emergency stop button according to the parsed control state of the emergency stop button relay to disconnect or close;

[0140] 5. Control the overall power-off and power-on of the charging pile control system according to the parsed control state of the auxiliary power relay to disconnect or close;

[0141] 6. Communicate with the emergency stop reset unit through the 485 communication port according to the parsing to control the emergency stop reset unit to receive the reset;

[0142] 7. Upload the on-site control status and parameter status to the platform in real time through the 4G communication module unit.

[0143] The specific implementation steps of the on-site installation are as follows:

[0144] 1. Judge the type of the charging pile;

[0145] 2. If it is an integrated charging pile, install it according to Figure 3 the electrical installation schematic diagram of the integrated charging pile;

[0146] 3. If it is a split charging pile, install the front box according to Figure 4 the electrical installation schematic diagram of the front box of the split charging pile; install the rear box according to Figure 5 the electrical installation schematic diagram of the rear box of the split charging pile;

[0147] 4. After the installation is completed, bind the coding of the fault eliminator, the type of the charging pile, and the coding of the charging pile to the platform. After completion, remote operation and maintenance can be implemented.

[0148] The control process of the fault elimination platform for the integrated charging pile is as Figure 6 shown, and its implementation steps are as follows:

[0149] 1. Select the charging pile coding to be cleared of faults on the WEB side;

[0150] 2. The platform issues an instruction to query the device status of the fault eliminator corresponding to the charging pile coding;

[0151] 3. Whether there is a feedback status for the timeout wait and whether the device is normal;

[0152] 4. If it is not normal, display that the device is abnormal and the device failure elimination fails;

[0153] 5. If it is normal, issue an instruction to control the emergency stop relay to close, simulating pressing the emergency stop switch;

[0154] 6. Wait for 20S for the timeout. Judge the status of the emergency stop switch. If it is abnormal, prompt that the failure elimination fails and enter the recovery process;

[0155] 7. If it is normal, control the main control relay to disconnect;

[0156] 8. Wait for 120S to judge whether the current status of the charging pile auxiliary power supply reported by the terminal is normal;

[0157] 9. If it is not normal, restore the emergency stop switch, enter the recovery process, indicate that the remote fault eliminator is abnormal, and the remote fault elimination fails;

[0158] 10. If it is normal, control the main control to close and wait for 60S;

[0159] 11. Judge whether the power-on is normal. If it is abnormal, prompt that the eliminator device is abnormal and enter the recovery process;

[0160] 12. If it is normal, disconnect the emergency stop relay switch, wait for 20S, and let everything at the site return to normal;

[0161] 13. Indicate that the fault elimination is completed.

[0162] The front-end box remote fault elimination control process of the split charging pile is as Figure 7 shown, and its implementation steps are as follows:

[0163] 1. Select the code of the charging pile to be eliminated on the WEB side;

[0164] 2. Select only front-end fault elimination;

[0165] 3. The platform issues an instruction to query the device status of the fault eliminator corresponding to the charging pile code;

[0166] 4. Whether there is a feedback status for the timeout wait and whether the device is normal;

[0167] 5. If it is not normal, display that the device is abnormal and the device restart fails;

[0168] 6. If it is normal, issue an instruction to control the emergency stop relay to close, simulating pressing the emergency stop switch;

[0169] 7. Wait for 20S for timeout, check the status of the emergency stop switch. If it is abnormal, prompt that the restart fails and enter the recovery process;

[0170] 8. If it is normal, control the main control relay to disconnect;

[0171] 9. Wait for 120S to check whether the current status of the charging pile auxiliary power supply reported by the terminal is normal;

[0172] 10. If it is not normal, restore the emergency stop switch, indicate that the remote fault eliminator is abnormal, the remote fault elimination fails, and enter the recovery process;

[0173] 11. If it is normal, control the main control to close and wait for 60S;

[0174] 12. Check whether the power-on is normal. If it is abnormal, prompt that the eliminator device is abnormal and enter the recovery process;

[0175] 13. If it is normal, disconnect the emergency stop relay switch, wait for 20S, and let everything on-site return to normal;

[0176] 14. If it is normal, indicate that the fault elimination is completed.

[0177] The overall remote fault elimination control process of the split charging pile is as Figure 8a and Figure 8b shown, and its implementation steps are as follows:

[0178] 1. Select the code of the charging pile to be eliminated on the WEB side;

[0179] 2. Select overall fault elimination;

[0180] 3. Automatically match the charging pile group according to the binding;

[0181] 4. Sequentially send commands to check the status of the bound fault eliminator;

[0182] 5. Perform timeout judgment. If any device in the group is abnormal, interrupt the fault elimination, prompt that the corresponding fault eliminator is abnormal, and enter the recovery process;

[0183] 6. If everything is normal, sequentially control the emergency stop relays of the split charging piles to close;

[0184] 7. Wait for 20S for timeout, and sequentially check the status of each front-end emergency stop switch;

[0185] 8. If there is any abnormality among them, prompt that the corresponding fault eliminator is abnormal, enter the recovery process, and prompt that the fault elimination fails after completion;

[0186] 9. If it is normal, control the main control relays of each front-end pile body to disconnect;

[0187] 10. Wait for 20S for timeout and determine whether each front-end device has been powered off successfully;

[0188] 11. If any operation fails, enter the recovery process and prompt that the clearing fails;

[0189] 12. If normal, control the back-end main control relay to disconnect;

[0190] 13. Wait for 120S to determine whether the back-end main control has been powered off successfully;

[0191] 14. If the power-off fails, enter the recovery process, display the abnormality of the fault eliminator at the same time, and display that the elimination fails;

[0192] 15. If normal, control the back-end main control to be powered on;

[0193] 16. Wait for 60S to determine whether the back-end main control has been restored to power on;

[0194] 17. If abnormal, enter the recovery process and indicate that the device is abnormal;

[0195] 18. If normal, control each front-end main control to be powered on;

[0196] 19. Wait for 60S for timeout and determine whether each front-end main control system is normal;

[0197] 20. If abnormal, enter the recovery process, summarize and display the cause of the fault, and prompt that the elimination fails;

[0198] 21. If normal, control each front-end emergency stop relay to disconnect;

[0199] 22. Wait for 20S to determine whether the emergency stop has returned to normal. If all are normal, indicate that the elimination is successful. If it fails, indicate failure and display the reason.

[0200] The method for clearing faults of an electric vehicle charging pile based on a platform control center in this specific embodiment mainly consists of a platform and a terminal. The platform serves as the control center for remote fault clearing and has the following functions: integrating standardized operation and maintenance specifications, forming different remote operation and maintenance control algorithms for different types of charging piles to ensure 100% of the on-site operation and maintenance effect; having the function of simulating the emergency stop button press and monitoring the emergency stop state to ensure the safety of the remote operation and maintenance process; having the function of controlling the emergency stop reset to remotely release the emergency stop button; having the function of remotely simulating the emergency stop switch press to respond to emergencies remotely. Having the function of real-time monitoring of the total current of the auxiliary power supply of the charging pile; having the function of long-link access to the device material network to ensure that data and command transmissions from on-site devices can be received in real time; having the function of binding the charging pile code, fault clearing instrument code, and charging pile type to the platform, and remotely operating and maintaining the charging pile according to the reported fault code of the charging pile and displaying each stage of the operation and maintenance control in real time; having the function of data operation record and real-time data storage and retrieval to trace back various accidents.

[0201] The terminal hardware of the method for clearing faults of an electric vehicle charging pile based on a platform control center in this specific embodiment. The charging pile fault clearing instrument mainly consists of the following parts:

[0202] MCU main control unit: 1) Interact with the platform in real time, receive, parse, and execute the instructions issued by the platform; 2) Detect the total current of the auxiliary power supply of the charging pile in real time and give early warnings about the status of the charging pile; 3) Monitor the status of the emergency stop switch in real time to determine whether it is pressed; 4) Send an emergency stop reset instruction through 485 to remotely reset the pressed emergency stop switch.

[0203] 4G communication module unit to implement the Internet of Things function;

[0204] Auxiliary power supply current monitoring unit, which collects the total current of the auxiliary power supply of the charging pile through a current transformer and monitors the current change of the charging pile control system;

[0205] Emergency stop switch status monitoring unit, which collects the voltage status of the emergency stop switch to determine whether the emergency stop is pressed;

[0206] Relay unit to implement simulating the emergency stop switch press and restarting the auxiliary power supply system of the charging pile;

[0207] 485 communication unit to communicate with the emergency stop reset unit and control the emergency stop reset module to release the emergency stop switch.

[0208] The main functions of the above fault clearing instrument are as follows:

[0209] 1. Have the Internet of Things function, transmit the data collected by the terminal in real time, receive the instructions sent by the platform, and feedback the control results to the platform;

[0210] 2. As an actuator, it is capable of parsing and executing platform instructions, controlling through the relay unit to meet the platform control requirements, and feeding back the control results to the platform.

[0211] 3. It has the function of remotely controlling the emergency stop reset.

[0212] 4. It has the function of remotely simulating the pressing of the emergency stop switch to enable the monitoring center to respond to on-site emergencies.

[0213] 5. It is capable of real-time monitoring of the total current of the auxiliary power supply of the charging pile.

[0214] The method for clearing faults of an electric vehicle charging pile based on a platform control center in this specific embodiment adopts a distributed architecture. The platform serves as the control center, and the terminal serves as the instruction execution mechanism. It can flexibly configure algorithm logic and parameters according to the types and characteristics of charging field equipment; integrates standardized operation and maintenance specifications to form different remote operation and maintenance control algorithms for different types of charging piles, ensuring 100% of the on-site operation and maintenance effects; has the functions of simulating the pressing of the emergency stop and monitoring the emergency stop state to ensure the safety of the remote operation and maintenance process; has the function of remotely controlling the emergency stop reset to remotely release the emergency stop button; has the function of remotely simulating the pressing of the emergency stop switch to respond to emergencies remotely.

[0215] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for clearing faults of an electric vehicle charging pile based on a cloud platform control center, including a platform and a terminal, adopting a distributed architecture, where the platform serves as a control center for remote fault clearing and the terminal serves as an instruction execution mechanism, characterized in that Specifically, it includes the following steps: (1) On-site implementation and installation: Determine whether the charging pile is an integrated type or a split type, and install it according to the electrical installation schematic diagram. After installation, bind the code of the fault clearing instrument, the type of the charging pile, and the code of the charging pile to the platform; (2) Fault clearing in the platform control center: Integrate standardized operation and maintenance specifications to form different remote operation and maintenance control algorithms for different types of charging piles; According to the reported fault code of the charging pile, perform remote operation and maintenance on it and display each stage of the operation and maintenance control in real time; (3) Simulate the emergency stop button press and monitor the emergency stop state by the fault clearing instrument: Ensure the safety of the remote operation and maintenance process; The described fault clearing instrument serves as a terminal, including an MCU unit, a 4G communication module unit, an auxiliary power current detection unit, an emergency stop switch state monitoring unit, a relay unit, and a 485 communication unit. The MCU unit is respectively connected to the 4G communication module unit and the 485 communication unit. The 485 communication unit is connected to the emergency stop reset unit. The auxiliary power current detection unit and the emergency stop switch state monitoring unit are both connected to the MCU unit. The MCU unit is connected to the first relay of the relay unit through the auxiliary power IO port, and the MCU unit is connected to the second relay of the relay unit through the emergency stop button IO port. The MCU unit is also connected to the power supply unit, and the power supply unit is connected to the AC-DC unit; The described fault clearing instrument is capable of remotely receiving instructions, remotely controlling the power-off and power-on of the auxiliary power supply of the charging pile to achieve the remote reset function of the charging pile; It is capable of remotely receiving instructions and realizing the function of pressing the emergency stop switch of the charging pile through the opening and closing of the relay to remotely respond to emergencies; It is capable of real-time monitoring the current state of the charging pile control system and uploading it to the platform to assist in monitoring the operation state; It is capable of remotely receiving instructions and interacting with the emergency stop reset unit through the 485 communication unit to achieve remote control of the emergency stop switch reset and avoid on-site operation and maintenance functions.

2. The method for clearing faults of an electric vehicle charging pile based on a cloud platform control center according to claim 1, characterized in that, In step (1), the algorithm logic and parameters are configured flexibly and personalized according to the type and characteristics of the charging field equipment.

3. The method for clearing faults of an electric vehicle charging pile based on a cloud platform control center according to claim 1, characterized in that, In step (3), remote control of the emergency stop reset is adopted to remotely release the emergency stop button; The function of remotely simulating the pressing of the emergency stop switch is adopted to remotely respond to emergencies.

4. The method for clearing faults of an electric vehicle charging pile based on a cloud platform control center according to claim 1, characterized in that, It has the function of data operation record and real-time data storage and retrieval, and can trace back various accidents.

Images