Charging monitoring method and device of charging pile, medium and program product

Abstract

The embodiment of the invention provides a charging monitoring method and device of a charging pile, a medium and a program product, and relates to the technical field of charging monitoring. The method comprises the following steps: acquiring a safety level evaluation parameter of a target charging pile; wherein the safety level evaluation parameters comprise a charging parameter deviation degree, a temperature environment risk index and a vehicle state evaluation parameter; determining a parameter maximum value in the security level evaluation parameters; and matching the maximum value of the parameter with a preset safety level comparison table, and determining a current safety monitoring result of the target charging pile based on a target safety level hit by matching. According to the embodiment of the invention, the evaluation parameters of factors such as the current, the temperature and the vehicle state of the charging pile are obtained in real time in the charging process, and the safety level of the charging pile is evaluated according to the maximum value of the evaluation parameters, so that the abnormal charging condition is found in time before the fault occurs; and the intelligence and reliability of charging safety monitoring are effectively improved.

Description

Technical Field

[0001] The present application relates to the field of charging monitoring technology, and more specifically, to a charging monitoring method, device, medium, and program product for a charging pile. Background Art

[0002] With the rapid development of electric vehicles, the construction and maintenance of charging infrastructure have become key supporting factors. Intelligent monitoring and efficient fault handling of electric vehicle charging piles are key to improving the convenience, reliability and user satisfaction of charging piles.

[0003] The current charging pile fault monitoring system can only issue an alarm after a fault occurs, and cannot provide early warning before the fault occurs. At this time, the charging pile cannot be used normally and may even bring certain safety risks. At the same time, due to the lack of early warning of fault conditions and the adoption of corresponding measures, the average time for charging pile fault handling is relatively high. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a charging monitoring method, device, medium and program product for a charging pile, so as to improve the intelligence and reliability of charging safety monitoring of the charging pile.

[0005] In a first aspect, an embodiment of the present application provides a charging monitoring method for a charging pile, comprising: Obtaining safety level evaluation parameters of the target charging pile; wherein the safety level evaluation parameters include charging parameter deviation, temperature environment risk index and vehicle status evaluation parameters; Determining the maximum value of each of the safety level evaluation parameters; The maximum value of the parameter is matched with a preset safety level comparison table, and the current safety monitoring result of the target charging pile is determined based on the matched target safety level.

[0006] In an embodiment of the present application, by obtaining evaluation parameters of factors such as the current, temperature, and vehicle status of the charging pile in real time during the charging process, the safety level of the charging pile is evaluated according to the maximum value of these evaluation parameters, so that charging abnormalities can be discovered in time before a fault occurs, effectively improving the intelligence and reliability of charging safety monitoring.

[0007] In some possible embodiments, the charging parameter deviation is obtained by: The charging parameter deviation is obtained by calculating based on the ratio of the current charging output current value to the preset maximum output threshold value in combination with a preset sensitivity coefficient.

[0008] In the embodiment of the present application, the reliability of charging current monitoring is improved by calculating the charging parameter deviation based on the ratio of the charging output to the preset threshold and the sensitivity coefficient.

[0009] In some possible embodiments, the temperature environment risk index is obtained by: Obtaining the temperature change rate of the charging gun of the target charging pile at a preset sampling frequency, and determining a temperature change rate fluctuation value based on the current temperature change rate and the previous temperature change rate; Determine the temperature anomaly probability based on the ratio of the current temperature sampling value to the preset maximum temperature threshold; The temperature environment risk index is calculated based on the temperature change rate fluctuation value and the temperature anomaly probability in combination with the preset current weight and temperature weight.

[0010] In the embodiment of the present application, the temperature environment risk index is calculated by combining the charging gun temperature change rate and temperature anomaly probability and their corresponding weights, thereby improving the reliability of charging temperature monitoring.

[0011] In some possible embodiments, matching the maximum parameter value with a preset safety level comparison table, and determining the current safety monitoring result of the target charging pile based on the matched target safety level, includes: When the maximum value of the parameter is within the first threshold range of the safety level comparison table, determining that the matched target safety level is the highest safety level, and controlling the target charging pile to maintain normal operation; wherein the highest safety level indicates that the current charging state is normal; When the maximum value of the parameter is within the second threshold range of the safety level comparison table, the target safety level of the matched target is determined to be an intermediate safety level, and the target charging pile is controlled to issue a warning status information; wherein, the lower limit of the second threshold range is greater than the upper limit of the first threshold range, and the intermediate safety level indicates that there is a slight abnormality in the current charging; When the maximum value of the parameter is within the third threshold range of the safety level comparison table, the target safety level that is matched is determined to be a low safety level, and the target charging pile is controlled to emit an audible and visual alarm message; wherein, the lower limit value of the third threshold range is greater than the upper limit value of the second threshold range, and the low safety level indicates that there is a serious abnormality in the current charging.

[0012] In the embodiment of the present application, by setting three safety levels and taking early warning or alarm measures when the corresponding safety level is reached, the intelligence and reliability of charging safety monitoring are further improved.

[0013] In some possible embodiments, the charging monitoring method for a charging pile further includes: Real-time monitoring of the current temperature sampling value of the target charging pile; When it is monitored that the current temperature sampling value is less than a preset first temperature threshold, controlling the target charging pile to maintain normal operation; When it is detected that the current temperature sampling value is greater than or equal to the first temperature threshold and less than a preset second temperature threshold, the cooling fan operation is started; When it is monitored that the current temperature sampling value is greater than or equal to the second temperature threshold and less than a preset third temperature threshold, controlling the target charging pile to reduce the charging power; When it is monitored that the current temperature sampling value is greater than the third temperature threshold, controlling the target charging pile to cut off output; The first temperature threshold is smaller than the second temperature threshold, and the second temperature threshold is smaller than the third temperature threshold.

[0014] In an embodiment of the present application, the temperature of the charging pile is monitored, and multiple temperature thresholds are set to evaluate the status of the charging pile and take corresponding measures, thereby further improving the reliability of charging safety monitoring.

[0015] In some possible embodiments, the charging monitoring method for a charging pile further includes: Real-time monitoring of the current charging curve of the target charging pile for the vehicle; When it is determined that the current charging curve is abnormal based on the preset charging standard curve, an alarm prompt message is sent to the user terminal corresponding to the vehicle, and the alarm prompt message is displayed on the display module of the target charging pile.

[0016] In an embodiment of the present application, the charging curve of the vehicle is monitored in real time, and an alarm is triggered when the charging curve is abnormal. At the same time, prompts are given on the user side and the charging pile display screen, thereby further improving the convenience and reliability of charging monitoring.

[0017] In some possible embodiments, the charging monitoring method for a charging pile further includes: When a fault event is detected during the charging operation of the target charging pile, detailed information of the current fault event is determined and displayed on the display module of the target charging pile; wherein the detailed information includes current fault point location information, fault cause analysis information and fault handling guide information.

[0018] In the embodiment of the present application, by displaying relevant detailed information on the display screen of the charging pile when a fault event occurs, the convenience and efficiency of fault handling are effectively improved.

[0019] In a second aspect, an embodiment of the present application provides a charging monitoring device for a charging pile, comprising: A parameter acquisition module is used to obtain safety level evaluation parameters of the target charging pile; wherein the safety level evaluation parameters include charging parameter deviation, temperature environment risk index and vehicle status evaluation parameters; A parameter determination module, used to determine the maximum value of each of the security level evaluation parameters; The safety level determination module is used to match the maximum value of the parameter with a preset safety level comparison table, and determine the current safety monitoring result of the target charging pile based on the matched target safety level.

[0020] In a third aspect, an embodiment of the present application provides an electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor can implement the method described in any embodiment of the first aspect when executing the program.

[0021] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method described in any embodiment of the first aspect can be implemented.

[0022] In a fifth aspect, an embodiment of the present application provides a computer program product, which includes a computer program, wherein when the computer program is executed by a processor, it can implement the method described in any embodiment of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A flow chart of a charging monitoring method for a charging pile provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a charging monitoring system for a charging pile provided in an embodiment of the present application; Figure 3 A schematic structural diagram of a charging monitoring device for a charging pile provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0026] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0027] It should be noted that current charging pile operation data shows that the average fault handling time due to the lack of status monitoring in the first quarter of 2023 was 4.7 hours, resulting in customer satisfaction being 23% lower than the industry benchmark. Therefore, it is urgent to reduce the fault handling time and provide users with a satisfactory experience.

[0028] At present, when charging electric vehicles, charging piles cannot intuitively detect the status of the charging pile, the status of the electric vehicle, and the surrounding environment. They can only alarm when a fault occurs, but cannot provide early warning. In particular, faults or accidents triggered by changes in the surrounding environment can actually be detected in advance, and users can be alerted to avoid them in advance to prevent failure events.

[0029] Furthermore, when a charging fault occurs, the only warning currently available is a flashing LED light and a simple alarm. If the user is not nearby, the alert is lost. Furthermore, when a fault occurs, the fault point and cause are not directly displayed, making it impossible to directly determine the severity of the fault. Even if a professional troubleshooter is available, they still need to perform on-site diagnostics of the charging pile fault code (taking an average of 38 minutes per session), which is time-consuming and labor-intensive. This inability to effectively and promptly troubleshoot the cause of the fault leads to inefficient troubleshooting, significantly impacting the customer experience. Therefore, the market urgently needs integrated monitoring upgrades for charging pile covers to enhance the user experience.

[0030] It's important to note that traditional charging pile covers have relatively limited functionality, featuring only a basic charging fault indicator (compliant with GB / T 29318-2012). These indicators come in four colors: green, yellow, orange, and red. While green indicates normal operation, the remaining colors correspond to varying degrees of fault status, allowing the severity of the fault to be determined at a glance. When a charging fault occurs, a status code is generated, but it can't be directly parsed and read. Instead, the code must be uploaded, parsed, and then transmitted back to the cloud (with an average latency of >8s). Therefore, when a fault occurs, local access to the fault status cannot be accurate and rapid, resulting in delayed fault detection and the inability to quickly and effectively perform targeted fault diagnosis. Furthermore, local diagnostic capabilities are limited, as the local storage unit only records the basic 16-bit fault code, making multi-parameter correlation analysis impossible.

[0031] The embodiment of the present application expands the functions of the charging pile based on its original functions, thereby increasing the functions and making the operation more "humanized" and convenient. Users can read fault-related information more intuitively and quickly, saving time in troubleshooting. For example, the charging pile can be equipped with a 7-inch capacitive touch screen (visible brightness in sunlight > 600cd / m²). The display screen does not reflect light or glare in sunlight, is relatively friendly to the eyes, and the displayed text can be clearly seen in sunlight without blocking the sunlight. The touch screen has multiple functions and is large in size. In the event of a fault, it can display the fault code and the cause of the fault in a timely and intuitive manner. The font is more eye-catching and an audible and visual alarm signal is issued at the same time. The double guarantee reminds the user that a fault is currently occurring, avoiding the situation where the charging pile fails but the user is not effectively reminded.

[0032] For example, in normal charging mode, the screen can also display other user-required features, such as charging time and battery level, to remind users of the current charging time and remaining charging time, display the battery level in real time, and display a charging curve. In addition to basic charging functions such as display functions, the charging pile can also be connected to the Internet and other apps can be added to provide a variety of auxiliary functions for the charging pile, making the charging pile more versatile.

[0033] For example, the charging pile also has an additional monitoring function, which integrates status monitoring such as the charging pile status, vehicle status, and external natural environment status compared to traditional charging piles. Monitoring these statuses can effectively avoid the occurrence of faults and safety risks; when a fault occurs, the charging pile can quickly enter a safe state and analyze the source, cause, and handling suggestions of the fault. Whether it is the charging pile or the vehicle's charging system, it will be analyzed and displayed on the screen to give users an intuitive display.

[0034] For example, monitoring the external natural environment during the charging process is also very important. For example, when the external temperature is abnormal, such as in the event of a fire, the charging pile will automatically cut off the power. When the vehicle is too close to the charging pile and there is a risk of collision, an alarm will also be sounded, and the alarm volume is relatively high to remind the user. The charging pile has increased monitoring of the external environment to reduce the risk of failures caused by external factors, rather than just monitoring the internal faults of the charging pile, which further improves the accuracy and coverage of fault monitoring. By effectively combining these monitoring methods and centrally monitoring multiple states, the cause of the failure can be analyzed and a solution can be given in a timely and effective manner based on the internal factors of the charging pile, the internal factors of the vehicle, and the external environment, reducing the time for troubleshooting and being very user-friendly for both users and inspectors.

[0035] It should be noted that the charging piles in the embodiments of the present application enhance the safety monitoring level during the charging process. For example, by dividing the safety level into three levels: highest, intermediate, and low, while the charging process will not be disconnected at intermediate or low safety levels, a warning or alarm signal will be issued to the user, along with reasonable suggestions, allowing the user to determine whether to continue charging and take appropriate measures. This function reduces conflicts in the monitoring system's data logic and significantly reduces the response time of local fault handling in the event of a fault, thereby ensuring personal safety and avoiding property damage.

[0036] like Figure 2 As shown, the integrated charging control and monitoring device for a DC charging pile (charging pile charging monitoring system) of the present application embodiment mainly includes the following modules: 1. MCU main control unit, 2. touch screen module, 3. charging control module, 4. current monitoring module, 5. vehicle communication unit, 6. sensor module, 7. camera module, 8. data storage unit, and 9. data analysis module. Among them: 1. The camera module can use a multispectral imaging module. By collecting operator image information and analyzing and comparing it with the pre-stored content in the data storage unit, it can identify operator permissions and assess security authentication levels, preventing unauthorized users from intentionally unplugging the charger, causing abnormal charging status. The camera module can also use images collected to assess the surrounding environment and determine whether any abnormalities have occurred. For example, if a fire is detected, charging can be disconnected to prevent further damage. It can also sound an alarm when other vehicles are too close to prevent a collision.

[0037] During charging, the main control unit implements intelligent power regulation through the charging control module, supporting switching between constant current and constant voltage charging modes. The system utilizes a current monitoring module comprised of a high-precision Hall effect sensor, combined with a 16-bit ADC voltage monitoring module (range 0-1000VDC), to collect charging parameters in real time. The data acquisition system features a dual-check mechanism, transmitting data packets to the main control unit every 200ms via the SPI interface. This ensures high transmission efficiency, high speed, low packet loss, and is safe and convenient.

[0038] 3. A vehicle communication channel is established based on the ISO 18487 protocol, maintaining data exchange with the vehicle's BMS via the CAN bus at 500ms intervals. The communication module utilizes a CAN isolation circuit design to acquire 23 key parameters, including battery SOC, cell voltage range, and state of health (SOH). The system incorporates a communication exception handling mechanism. For example, if three consecutive handshake failures occur, a downgraded charging mode (reduced charging power) is automatically triggered. Charging process data is temporarily stored in an industrial-grade eMMC memory, supporting cyclic storage of 24 hours of historical data. Data can also be temporarily stored in the data storage unit. The data analysis module analyzes the current charging pile status in real time to assess charging efficiency, predict equipment aging, and identify abnormal patterns. The sensor module monitors the surrounding environment in real time, setting different temperature thresholds. Each threshold range corresponds to a different safety level. A software algorithm evaluates the current status of the charging pile and displays the current safety level and other status results on the LCD screen.

[0039] 4. When an abnormal situation occurs or a fault state occurs during the charging process, the data analysis module can provide a fault solution through the display screen based on the current abnormal or fault state, making it convenient for maintenance personnel to quickly solve the fault and reduce maintenance time.

[0040] like Figure 1 As shown, the embodiment of the present application provides a charging monitoring method for a charging pile, which can be performed by a DC charging pile charging control and monitoring integrated device, and can include the following steps: S1. Obtain safety level evaluation parameters of a target charging pile; wherein the safety level evaluation parameters include charging parameter deviation, temperature environment risk index, and vehicle status evaluation parameters.

[0041] In some possible embodiments, a method for obtaining the charging parameter deviation includes: The charging parameter deviation is calculated based on the ratio of the current charging output current value to the preset maximum output threshold value in combination with the preset sensitivity coefficient.

[0042] In some possible embodiments, the temperature environment risk index may be obtained by: Obtain the temperature change rate of the charging gun of the target charging pile according to the preset sampling frequency, and determine the temperature change rate fluctuation value based on the current temperature change rate and the previous temperature change rate; Determine the temperature anomaly probability based on the ratio of the current temperature sampling value to the preset maximum temperature threshold; The temperature environment risk index is calculated based on the temperature change rate fluctuation value and temperature anomaly probability, combined with the preset current weight and temperature weight.

[0043] S2. Determine the maximum value of each safety level evaluation parameter; S3. Match the maximum value of the parameter with a preset safety level comparison table, and determine the current safety monitoring result of the target charging pile based on the matched target safety level.

[0044] Specifically, the data sources used to calculate the safety level evaluation parameters mainly include detection temperature, detection current, detection voltage and other environmental parameters.

[0045] For example, the main control unit can generate a safety level based on a risk assessment model based on a fuzzy control algorithm, integrating indicators such as charging parameter deviation, environmental risk index, and vehicle status evaluation parameters. The indicator calculation and safety level assessment can be updated at a preset frequency, and the current safety level is displayed on the display screen during each update.

[0046] For example, for the charging parameter deviation, the formula may be used:

[0047] in, Indicates the charging parameter deviation, which is used to characterize the safety level corresponding to the current charging current value; Indicates the DC output current value detected by the current detection module (current charging output current value); Indicates the maximum output threshold within the safety range (preset maximum output threshold); n Indicates the preset sensitivity coefficient, which can be set to 0.5 for example.

[0048] For example, for the temperature environment risk index, the formula may be used:

[0049] In the above formula, Represents the temperature environment risk index, which is used to characterize the safety level corresponding to the charging pile temperature; Indicates the fluctuation value of temperature change rate; represents the probability of temperature anomaly; m represents the current weight; aRepresents the temperature weight. It should be noted that according to Q=I 2 Rt, where the resistance change fluctuation is small, so the temperature change rate fluctuation value is mainly related to the current, so the preset current weight m included in the parameter calculation.

[0050] in,

[0051]

[0052] Where, Indicates the current temperature change rate, Indicates the last temperature change rate. Indicates the charging gun temperature detected by the temperature detection module (current temperature sampling value); Indicates the maximum allowable temperature threshold within the safety range (the preset maximum temperature threshold, for example, can be set to 75°C). The closer it is to 1, the closer the current temperature sampling value is to the maximum temperature threshold.

[0053] For example, for the vehicle state evaluation parameter, the formula may be used:

[0054] in, Represents the vehicle status evaluation parameter, which is used to characterize the safety level corresponding to the current vehicle status; Expressed as the vehicle status failure probability, the system evaluates the vehicle failure probability by obtaining vehicle status information, and its value is much smaller than 1 in the range of 0-1; when a vehicle fails, ,at this time Infinitely close to 1.

[0055] For example, the maximum value of each safety level evaluation parameter is finally determined to determine the current safety level of the charging pile. For example, the maximum value of each safety level evaluation parameter can be determined using the following formula:

[0056] The above formula can be used to obtain 、 and Based on the maximum value of the parameter, the preset safety level comparison table is matched to determine the current safety monitoring result of the target charging pile, that is, to determine the current safety level of the charging pile.

[0057] Based on this, by obtaining the evaluation parameters of factors such as the current, temperature, and vehicle status of the charging pile in real time during the charging process, the safety level of the charging pile is evaluated according to the maximum value of these evaluation parameters, so that charging abnormalities can be monitored in time before a fault occurs, effectively improving the intelligence and reliability of charging safety monitoring.

[0058] In some possible embodiments, matching the maximum parameter value with a preset safety level comparison table, and determining the current safety monitoring result of the target charging pile based on the matched target safety level, includes: When the maximum value of the parameter is within the first threshold range of the safety level comparison table, the target safety level that matches the target is determined to be the highest safety level, and the target charging pile is controlled to maintain normal operation; wherein, the highest safety level indicates that the current charging state is normal; When the maximum value of the parameter falls within the second threshold range of the safety level comparison table, the target safety level of the matched target is determined to be an intermediate safety level, and the target charging pile is controlled to issue a warning status information; wherein, the lower limit of the second threshold range is greater than the upper limit of the first threshold range, and the intermediate safety level indicates that there is a slight abnormality in the current charging; When the maximum value of the parameter is within the third threshold range of the safety level comparison table, the matched target safety level is determined to be a low safety level, and the target charging pile is controlled to emit an audible and visual alarm message; wherein, the lower limit value of the third threshold range is greater than the upper limit value of the second threshold range, and the low safety level indicates that there is a serious abnormality in the current charging.

[0059] Exemplarily, the security level can be divided into three levels, where the highest level corresponds to the first threshold range (e.g., 0-0.73), the middle level corresponds to the second threshold range (e.g., 0.73-0.86, excluding 0.73), and the low level corresponds to the third threshold range (e.g., 0.86-1, excluding 0.86).

[0060] For example, the security level comparison table may be shown in Table 1 below: Table 1 Safety level comparison table

[0061] Among them, the highest level indicates that the current charging is normal; the intermediate level indicates that charging is allowed, but there are potential safety risks (minor abnormalities); the low level indicates that charging is allowed, but there are higher safety risks (serious abnormalities).

[0062] For example, at the highest safety level, charging is normal, and no warning or reminder is required; charging proceeds normally. At medium and low safety levels, the charging station issues a warning status message and an audible and visual alarm, respectively, but there's no need to disconnect the charger. If a fault occurs, power is immediately cut off to minimize risk. At medium or low safety levels, in addition to issuing warnings or alarms, a corresponding advisory message can be displayed on the charging station's display, allowing users to determine whether to continue charging, enhancing the user experience.

[0063] For example, when the safety level of the charging pile drops to a low safety level, the fault warning mechanism is triggered in real time (no actual fault has occurred at this time), the potential failure causes are analyzed through the intelligent diagnosis module, and multi-dimensional disposal plans and preventive maintenance suggestions are simultaneously output on the human-machine interface (display screen) of the charging pile.

[0064] It should be noted that the main control unit can generate a safety level based on the risk assessment model of the fuzzy control algorithm, integrating indicators such as charging parameter deviation, environmental risk index, and vehicle status evaluation parameters. Among them, a 7-inch IPS LCD screen (resolution 1024×600) can be used to provide safety prompts through a three-level display interface: Normal state: Green dynamic display of charging information such as charging power, SOC, and estimated remaining time; Warning status: Flashing yellow indicates abnormal parameters and superimposes corresponding fault codes; Alarm status: Red full screen coverage, simultaneous activation of the sound and light alarm (105dB buzzer + LED strobe).

[0065] For example, the system can integrate a self-check function, automatically performing sensor calibration and relay contact testing every 24 hours, and recording abnormal data with millisecond-level timestamps. Users can query the most recent 10 alarm event records through the touchscreen and scan QR codes to obtain detailed troubleshooting guides.

[0066] Based on this, by setting three safety levels and taking early warning or alarm measures when the corresponding safety level is reached, the intelligence and reliability of charging safety monitoring are further improved.

[0067] In some possible embodiments, the charging monitoring method of the charging pile further includes: Real-time monitoring of the current temperature sampling value of the target charging pile; When the current temperature sampling value is detected to be lower than a preset first temperature threshold, the target charging pile is controlled to maintain normal operation; When the current temperature sampling value is detected to be greater than or equal to the first temperature threshold and less than the preset second temperature threshold, the cooling fan operation is started; When the current temperature sampling value is monitored to be greater than or equal to the second temperature threshold and less than a preset third temperature threshold, the target charging pile is controlled to reduce the charging power; When the current temperature sampling value is detected to be greater than a third temperature threshold, the target charging pile is controlled to cut off output; The first temperature threshold is smaller than the second temperature threshold, and the second temperature threshold is smaller than the third temperature threshold.

[0068] It should be noted that, in addition to determining the safety level of the charging pile based on the safety level evaluation parameters, safety monitoring can also be performed directly based on the temperature value collected by the charging pile.

[0069] Exemplarily, temperature monitoring can be set to four levels, where: The highest level is when the current temperature sampling value is lower than the preset first temperature threshold (e.g. T<55°C). At this time, the green light is displayed and charging is normal. Intermediate: The current temperature sampling value is greater than or equal to the first temperature threshold and less than the preset second temperature threshold (for example, 55℃≤T<65℃). At this time, the yellow light is on as a warning and the fan is started for forced cooling. Low level: the current temperature sampling value is greater than or equal to the second temperature threshold and less than the preset third temperature threshold (for example, 65℃≤T<75℃). At this time, the orange light will be on as a warning, and the load will be automatically reduced to 50% power. The charging protection level is when the current temperature sampling value is greater than the third temperature threshold (for example, T>75°C). At this time, the red light will turn on as a warning and the output will be cut off immediately.

[0070] Based on this, the reliability of charging safety monitoring is further improved by monitoring the temperature of the charging pile, setting multiple temperature thresholds to evaluate the status of the charging pile and taking corresponding measures.

[0071] In some possible embodiments, the charging monitoring method of a charging pile further includes: Real-time monitoring of the current charging curve of the target charging pile for the vehicle; When it is determined that the current charging curve is abnormal based on the preset charging standard curve, an alarm prompt message is sent to the user terminal corresponding to the vehicle, and the alarm prompt message is displayed on the display module of the target charging pile.

[0072] It should be noted that during the battery charging process, the current vehicle charging curve can be compared with the charging standard curve to analyze whether the current charging curve is abnormal. Vehicle maintenance prompts can be provided based on the comparison results. For example, when monitoring an abnormality is detected, an alarm prompt message can be displayed simultaneously on the screen and on the user's mobile phone.

[0073] Based on this, by monitoring the vehicle's charging curve in real time and triggering an alarm when the charging curve is abnormal, prompts are given on the user side and the charging pile display screen at the same time, thereby further improving the convenience and reliability of charging monitoring.

[0074] In some possible embodiments, the charging monitoring method of the charging pile further includes: When a fault event is detected during the charging operation of the target charging pile, detailed information of the current fault event is determined and displayed on the display module of the target charging pile; the detailed information includes the current fault point location information, fault cause analysis information and fault handling guide information.

[0075] It should be noted that when a fault event is detected, the system can automatically locate the fault point information, analyze the cause of the fault and the corresponding fault handling guide information by analyzing the fault code and other information, and display this information on the display module of the charging pile so that the inspectors can quickly take effective measures, save fault handling time and improve efficiency.

[0076] Based on this, by displaying relevant detailed information on the display screen of the charging pile when a fault occurs, the convenience and efficiency of fault handling can be effectively improved.

[0077] Please refer to Figure 3 , Figure 3 The following is a block diagram showing the composition of the charging monitoring device of the charging pile provided in some embodiments of the present application. It should be understood that the charging monitoring device of the charging pile is similar to the above-mentioned Figure 1 Corresponding to the method embodiment, the various steps involved in the above method embodiment can be executed. The specific functions of the charging monitoring device of the charging pile can be found in the description above. To avoid repetition, the detailed description is appropriately omitted here.

[0078] Figure 3 The charging monitoring device of the charging pile includes at least one software function module that can be stored in a memory in the form of software or firmware or solidified in the charging monitoring device of the charging pile, and the charging monitoring device of the charging pile includes: Parameter acquisition module 310, used to obtain safety level evaluation parameters of the target charging pile; wherein the safety level evaluation parameters include charging parameter deviation, temperature environment risk index and vehicle status evaluation parameters; A parameter determination module 320 is used to determine the maximum value of each safety level evaluation parameter; The safety level determination module 330 is used to match the maximum value of the parameter with a preset safety level comparison table, and determine the current safety monitoring result of the target charging pile based on the matched target safety level.

[0079] It can be understood that the above-mentioned device embodiment corresponds to the method embodiment of the present invention. The charging monitoring device for a charging pile provided by the embodiment of the present invention can implement the charging monitoring method for a charging pile provided by any method embodiment of the present invention.

[0080] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the aforementioned method, and will not be described in detail here.

[0081] like Figure 4 As shown, some embodiments of the present application provide an electronic device 400, which includes: a memory 410, a processor 420, and a computer program stored in the memory 410 and executable on the processor 420, wherein the processor 420 reads the program from the memory 410 through the bus 430 and executes the program to implement a method of any embodiment included in the above-mentioned charging monitoring method for the charging pile.

[0082] Processor 420 can process digital signals and can include various computing architectures, such as a complex instruction set computer architecture, a reduced instruction set computer architecture, or an architecture that implements a combination of multiple instruction sets. In some examples, processor 420 can be a microprocessor.

[0083] The memory 410 can be used to store instructions executed by the processor 420 or data related to the execution of instructions. These instructions and / or data may include code for implementing some or all functions of one or more modules described in the embodiments of this application. The processor 420 of the embodiment of the present disclosure can be used to execute the instructions in the memory 410 to implement the method shown above. The memory 410 includes dynamic random access memory, static random access memory, flash memory, optical memory, or other memory known to those skilled in the art.

[0084] Some embodiments of the present application further provide a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method described in the method embodiment is executed.

[0085] Some embodiments of the present application further provide a computer program product, which, when running on a computer, enables the computer to execute the method described in the method embodiment.

[0086] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similarities between the various embodiments can be referred to in conjunction with each other. For device embodiments, since they are generally similar to method embodiments, their description is relatively simple, and for relevant details, reference can be made to the description of the method embodiments.

[0087] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of the devices, methods, and computer program products according to the multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment, or a portion of code, and the module, program segment, or a portion of code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0088] In addition, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0089] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0090] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0091] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0092] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. A charging monitoring method for a charging pile, characterized in that: include: Obtaining safety level evaluation parameters of the target charging pile; wherein the safety level evaluation parameters include charging parameter deviation, temperature environment risk index and vehicle status evaluation parameters; Determining the maximum value of each of the safety level evaluation parameters; The maximum value of the parameter is matched with a preset safety level comparison table, and the current safety monitoring result of the target charging pile is determined based on the matched target safety level.

2. The charging monitoring method of the charging pile according to claim 1, characterized in that: The method for obtaining the charging parameter deviation includes: The charging parameter deviation is obtained by calculating based on the ratio of the current charging output current value to the preset maximum output threshold value in combination with a preset sensitivity coefficient.

3. The charging monitoring method of the charging pile according to claim 1, characterized in that: Methods for obtaining the temperature environment risk index include: Obtaining the temperature change rate of the charging gun of the target charging pile at a preset sampling frequency, and determining a temperature change rate fluctuation value based on the current temperature change rate and the previous temperature change rate; Determine the temperature anomaly probability based on the ratio of the current temperature sampling value to the preset maximum temperature threshold; The temperature environment risk index is calculated based on the temperature change rate fluctuation value and the temperature anomaly probability in combination with the preset current weight and temperature weight.

4. The charging monitoring method of a charging pile according to claim 1, characterized in that: The matching of the maximum value of the parameter with a preset safety level comparison table, and determining the current safety monitoring result of the target charging pile based on the matched target safety level, includes: When the maximum value of the parameter is within the first threshold range of the safety level comparison table, determining that the matched target safety level is the highest safety level, and controlling the target charging pile to maintain normal operation; wherein the highest safety level indicates that the current charging state is normal; When the maximum value of the parameter is within the second threshold range of the safety level comparison table, the target safety level of the matched target is determined to be an intermediate safety level, and the target charging pile is controlled to issue a warning status information; wherein, the lower limit of the second threshold range is greater than the upper limit of the first threshold range, and the intermediate safety level indicates that there is a slight abnormality in the current charging; When the maximum value of the parameter is within the third threshold range of the safety level comparison table, the target safety level that is matched is determined to be a low safety level, and the target charging pile is controlled to emit an audible and visual alarm message; wherein, the lower limit value of the third threshold range is greater than the upper limit value of the second threshold range, and the low safety level indicates that there is a serious abnormality in the current charging.

5. The charging monitoring method of the charging pile according to claim 1, characterized in that: Also includes: Real-time monitoring of the current temperature sampling value of the target charging pile; When it is monitored that the current temperature sampling value is less than a preset first temperature threshold, controlling the target charging pile to maintain normal operation; When it is detected that the current temperature sampling value is greater than or equal to the first temperature threshold and less than a preset second temperature threshold, the cooling fan operation is started; When it is monitored that the current temperature sampling value is greater than or equal to the second temperature threshold and less than a preset third temperature threshold, controlling the target charging pile to reduce the charging power; When it is monitored that the current temperature sampling value is greater than the third temperature threshold, controlling the target charging pile to cut off output; The first temperature threshold is smaller than the second temperature threshold, and the second temperature threshold is smaller than the third temperature threshold.

6. The charging monitoring method of a charging pile according to claim 1, characterized in that: Also includes: Real-time monitoring of the current charging curve of the target charging pile for the vehicle; When it is determined that the current charging curve is abnormal based on the preset charging standard curve, an alarm prompt message is sent to the user terminal corresponding to the vehicle, and the alarm prompt message is displayed on the display module of the target charging pile.

7. The charging monitoring method of a charging pile according to claim 1, characterized in that: Also includes: When a fault event is detected during the charging operation of the target charging pile, detailed information of the current fault event is determined and displayed on the display module of the target charging pile; wherein the detailed information includes current fault point location information, fault cause analysis information and fault handling guide information.

8. An electronic device, characterized in that: The present invention comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor can implement the charging monitoring method of the charging pile according to any one of claims 1 to 7 when executing the program.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the charging monitoring method for the charging pile according to any one of claims 1 to 7 is executed.

10. A computer program product, characterized in that The computer program product includes a computer program, and when the computer program is executed by a processor, the charging monitoring method for the charging pile according to any one of claims 1 to 7 is implemented.

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