Charging pile safety monitoring method and system based on diversified analysis

Abstract

The invention relates to the technical field of charging pile management, in particular to a charging pile safety monitoring method and system based on diversified analysis, and the system comprises a charging pile safety monitoring center, a potential state division unit, a safety monitoring analysis unit, a multi-dimensional evaluation unit, a persistence evaluation unit and a state early warning unit. According to the method, analysis is preliminarily carried out from the state angle of the charging gun head of the charging pile so as to carry out early warning management on the charging gun head which is not completely installed, so that the safety of the charging pile is improved, analysis is carried out from the fire early warning angle of the charging pile, and through the whole process design of image recognition-dynamic verification-multi-source cross verification, the safety of the charging pile is improved. Real-time and reliable technical guarantee is provided for safe operation of the charging pile, multi-dimensional health comprehensive evaluation analysis is carried out in an information progressive mode, comprehensive, objective and quantitative evaluation of the safe state of the charging pile is achieved, and powerful support is provided for safe operation and intelligent management of the charging pile.

Description

Technical Field

[0001] The present invention relates to the technical field of charging pile management, and in particular to a charging pile safety monitoring method and system based on diversified analysis. Background Art

[0002] Charging piles are connected to the mains or dedicated power grid, and the input AC power is introduced into the internal power distribution unit. The power consumption is monitored by an electric meter, and protective devices such as circuit breakers are used to ensure the safety and stability of the input power supply. As the industry develops, the relevant standards and specifications for charging piles will continue to be improved to ensure the safety, compatibility and interoperability of charging piles, and promote the healthy and orderly development of the market. With the increasing popularity of new energy vehicles, charging piles, as important infrastructure, are crucial for their safe operation. However, existing charging pile safety monitoring methods are mostly limited, such as using only temperature sensors to monitor temperature or current sensors to monitor current. These methods make it difficult to comprehensively and accurately determine the safety status of charging piles, posing potential safety risks. Furthermore, existing monitoring methods lack in-depth data analysis and are unable to promptly identify potential safety issues, which in turn reduces the stability and safety of the charging piles' continued operation. In view of the above technical defects, a solution is now proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide a charging pile safety monitoring method and system based on diversified analysis to solve the above-mentioned technical defects. The present invention initially analyzes from the perspective of the status of the charging gun head of the charging pile so as to perform early warning management of the charging gun head that is not fully installed to improve the safety of the charging pile. At the same time, it analyzes from the perspective of fire warning of the charging pile, that is, through the full process design of "image recognition-dynamic verification-multi-source cross-validation", so as to realize a closed loop from abnormal discovery to emergency response, providing real-time and reliable technical guarantee for the safe operation of the charging pile. The multi-dimensional health comprehensive evaluation analysis of the collected multi-dimensional status data of the charging pile is carried out in an information progressive manner. Through the multi-indicator comprehensive evaluation method and safety score calculation model, a comprehensive, objective and quantitative assessment of the safety status of the charging pile is achieved, which provides strong support for the safe operation and intelligent management of the charging pile, while improving the accuracy of the safety supervision of the charging pile. In addition, an in-depth analysis is conducted from the perspective of trend so as to rationalize and target the management of the charging pile based on information feedback, so as to improve the continuous operation stability and timely preventive management of the charging pile.

[0004] The object of the present invention can be achieved by the following technical solutions: a charging pile safety monitoring system based on diversified analysis, comprising a charging pile safety monitoring center, a potential state division unit, a safety monitoring and analysis unit, a multidimensional evaluation unit, a continuity evaluation unit, and a state warning unit; The charging pile safety monitoring center is used to retrieve the status of the charging gun head of the charging pile, and send the status of the charging gun head to the potential state classification unit for potential safety management feedback analysis, and judge the obtained loop voltage value; Safety monitoring and analysis unit: collects monitoring videos of charging piles, conducts continuous safety monitoring and early warning analysis on the monitoring videos, determines the eccentricity of the obtained regional shape, and obtains a first-level alarm signal or monitoring signal; Multi-dimensional evaluation unit: collects multi-dimensional status data of charging piles and conducts multi-dimensional health comprehensive evaluation and analysis; Sustainability evaluation unit: further analyzes the stability and sustainability of the collected multi-dimensional status data of the charging pile.

[0005] Preferably, the potential safety management feedback analysis process is as follows: the operating time period of the charging pile is collected, and the operating time period of the charging pile is set as a time threshold, and the charging gun head status of the charging pile within the time threshold is obtained. The charging gun head status includes unplugged state and plugged in state, and the charging gun head status of the charging pile is judged and processed. If the charging gun head status is unplugged, a charging signal is generated; if the charging gun head status is plugged in, a standby signal is generated.

[0006] Preferably, the analysis process of the unplugged state and the inserted state is as follows: obtain the monitoring video of the charging pile interface, extract the contour shape feature image of the charging gun head and the charging pile interface from the monitoring video in real time, and at the same time call the shape feature image of the charging gun head and the charging pile interface when inserted, obtain the similarity between the contour shape feature image and the shape feature image, and set the similarity between the contour shape feature image and the shape feature image as the state fit, and perform a judgment process on the state fit. If the state fit is greater than the preset state fit threshold, it is determined to be an inserted state. If the state fit is less than or equal to the preset state fit threshold, it is determined to be an unplugged state.

[0007] Preferably, when a standby signal is generated, the circuit voltage value of the charging gun head within the time threshold is obtained, and the circuit voltage value is judged and processed. If the circuit voltage value is equal to zero, a disconnection signal is generated; if the circuit voltage value is not equal to zero, a bonding signal is generated.

[0008] Preferably, the continuous security monitoring and early warning analysis process is as follows: The monitoring video of the charging pile is collected by a camera, and a frame feature image of the charging pile is obtained based on the monitoring video, and the frame feature image is preprocessed; The preprocessed frame feature image is converted into an RGB color feature image, and the orange-red pixel ratio value in the orange-red area is obtained based on the RGB color feature image; The orange-red pixel ratio is then discriminated and processed to obtain a warning signal or a regular signal.

[0009] Preferably, when generating a warning signal, m consecutive frame feature images are obtained, where m is a natural number greater than zero, and the brightness standard deviation of the orange-red area is obtained based on the m consecutive frame feature images, and the brightness standard deviation of the orange-red area is discriminated and processed to obtain a dynamic warning signal or a dynamic regular signal; When a dynamic warning signal is generated, the regional shape eccentricity of the orange-red area is obtained, and the regional shape eccentricity is judged and processed. If the regional shape eccentricity is greater than the preset regional shape eccentricity threshold, a first-level alarm signal is generated; if the regional shape eccentricity is less than or equal to the preset regional shape eccentricity threshold, a monitoring signal is generated.

[0010] Preferably, the multi-dimensional health comprehensive assessment and analysis process is as follows: Obtain multi-dimensional status data of the charging pile within the time threshold, which includes electrical evaluation scores, mechanical safety scores, and thermal safety scores; retrieve a pre-set multi-dimensional status scoring model for the charging pile, which includes an electrical scoring model, a mechanical scoring model, and a thermal safety scoring model; The electrical parameters, mechanical parameters, and heat treatment parameters are input into the multidimensional state scoring model as the input layer to obtain the corresponding output results, which include electrical safety score, mechanical safety score, and thermal safety score; The comprehensive status score P is discriminated and processed to obtain a risk signal or a safety signal.

[0011] Preferably, the process of acquiring the multi-dimensional status data is as follows: acquiring the electrical parameters, mechanical parameters, and thermal treatment parameters of the charging pile within the time threshold, the electrical parameters including the actual charging current and active power, the mechanical parameters including the actual shaking amplitude between the charging gun head and the charging pile, and the angle deviation value of the charging gun bracket, and the thermal treatment parameters including the air volume of the cooling fan outlet and the temperature rise amplitude per unit time; The process of obtaining the comprehensive state score P is as follows: each parameter in the output result is set as the state score parameter Zi, i = 1, 2, 3, ..., n, and at the same time, the pre-set proportional weight factor ri of each parameter in the output result is obtained, and the value obtained by summing the state score parameter Zi and the proportional weight factor ri is set as the comprehensive state score P.

[0012] Preferably, the stability performance sustainability analysis process is as follows: multi-dimensional status data of the next g charging piles are obtained based on the time series, where g is a natural number greater than zero; a change characteristic curve of each status scoring parameter Z is constructed based on the multi-dimensional status data; and a fluctuation range interval of each status scoring parameter Z is obtained based on the change characteristic curve; And perform discrimination processing on each fluctuation range interval to obtain a health signal and a deviation signal, obtain the ratio between the number corresponding to the generated deviation signal and n, and set the ratio between the number corresponding to the generated deviation signal and n as the trend health score, and perform discrimination processing on the trend health score to obtain a trend warning signal or a stable trend signal.

[0013] The beneficial effects of the present invention are as follows: The present invention initially analyzes the status of the charging gun head of the charging pile to intuitively understand the real-time status and installation status of the charging gun head of the charging pile, so as to carry out early warning management of charging gun heads that are not fully installed, thereby improving the safety of the charging pile. At the same time, the present invention analyzes the fire warning of the charging pile from the perspective of fire warning, that is, through the full process design of "image recognition-dynamic verification-multi-source cross-validation", so as to achieve a closed loop from abnormality detection to emergency response, providing real-time and reliable technical support for the safe operation of the charging pile. The present invention conducts a multi-dimensional health comprehensive evaluation and analysis on the multi-dimensional status data of the collected charging piles in an information progressive manner. Through a multi-index comprehensive evaluation method and a safety score calculation model, a comprehensive, objective and quantitative evaluation of the safety status of the charging piles is achieved, which provides strong support for the safe operation and intelligent management of the charging piles, while improving the accuracy of the safety supervision of the charging piles. In-depth analysis is conducted from the perspective of trends, so that the charging piles can be managed rationally and targeted based on information feedback, thereby improving the continuous operation stability and timely preventive management of the charging piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings; Figure 1 It is a flow chart of the system of the present invention; Figure 2 It is a reference diagram of the method of the present invention. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0017] Example 1: See also Figures 1 to 2 As shown, the present invention is a charging pile safety monitoring method and system based on diversified analysis, including a charging pile safety monitoring center, a potential state division unit, a safety monitoring and analysis unit, a multidimensional evaluation unit, a continuity evaluation unit and a state warning unit. The charging pile safety monitoring center is connected to the potential state division unit and the safety monitoring and analysis unit in a one-way communication manner. The potential state division unit and the safety monitoring and analysis unit are connected to the multidimensional evaluation unit in a one-way communication manner. The multidimensional evaluation unit is connected to the continuity evaluation unit and the state warning unit in a one-way communication manner. The continuity evaluation unit is connected to the state warning unit in a one-way communication manner. The charging pile safety monitoring center is used to retrieve the status of the charging gun head of the charging pile and send the status of the charging gun head to the potential state division unit for potential safety management feedback analysis, so as to intuitively understand the real-time status and installation status of the charging gun head of the charging pile, so as to carry out early warning management of charging gun heads that are not fully installed, thereby improving the safety of the charging pile. The specific potential safety management feedback analysis process is as follows: The operation time period of the charging pile is collected and set as a time threshold. The state of the charging gun head of the charging pile within the time threshold is obtained. The charging gun head state includes unplugged state and plugged state. The state of the charging gun head of the charging pile is judged and processed. If the charging gun head state is unplugged, a charging signal is generated. If the charging gun head state is plugged in, a standby signal is generated. The analysis process of the unplugged state and the plugged state is as follows: Obtain surveillance video of the charging pile interface, extract in real time from the surveillance video the contour shape feature image of the charging gun head and the charging pile interface, and simultaneously retrieve the shape feature image of the charging gun head and the charging pile interface when inserted, obtain the similarity between the contour shape feature image and the shape feature image, and set the similarity between the contour shape feature image and the shape feature image as the state fit, perform discrimination processing on the state fit, and if the state fit is greater than a preset state fit threshold, determine it to be an inserted state; if the state fit is less than or equal to the preset state fit threshold, determine it to be an unplugged state; When the standby signal is generated, the loop voltage value of the charging gun head within the time threshold is obtained, and the loop voltage value is judged and processed. If the loop voltage value is equal to zero, a disconnection signal is generated. If the loop voltage value is not equal to zero, a connection signal is generated. The status warning unit is used to respond to the disconnection signal or the connection signal, and immediately perform the preset warning operation corresponding to the disconnection signal or the connection signal, such as: the preset warning operation corresponding to the disconnection signal: the warning light is yellow, and the preset warning operation corresponding to the connection signal: the warning light is green, so as to intuitively understand the real-time status and installation status of the charging gun head of the charging pile, so as to perform early warning management on the charging gun head that is not fully installed, so as to improve the safety of the charging pile; The security monitoring and analysis unit is used to conduct continuous security monitoring and early warning analysis on the collected monitoring videos of charging piles, so as to achieve a closed loop from abnormality detection to emergency response, providing real-time and reliable technical support for the safe operation of charging piles. The specific continuous security monitoring and early warning analysis process is as follows: The monitoring video of the charging pile is collected by a camera, and the frame feature image of the charging pile is obtained based on the monitoring video. The frame feature image is preprocessed, including denoising and enhancement. The preprocessed frame feature image is converted into an RGB color feature image, and the orange-red pixel ratio value in the orange-red area is obtained based on the RGB color feature image (orange-red area: R=200-255, G=100-180, B=0-80); The orange-red pixel ratio is judged and processed. If the orange-red pixel ratio is greater than a preset orange-red pixel ratio threshold, a warning signal is generated. If the orange-red pixel ratio is less than or equal to the preset orange-red pixel ratio threshold, a normal signal is generated. When a normal signal is generated, the charging pile is continued to be monitored in response to the normal signal. When generating a warning signal, m consecutive frame feature images are obtained, where m is a natural number greater than zero. The brightness standard deviation of the orange-red area is obtained based on the m consecutive frame feature images, and the brightness standard deviation of the orange-red area is discriminated. If the brightness standard deviation is greater than a preset brightness standard deviation threshold, a dynamic warning signal is generated. If the brightness standard deviation is less than or equal to the preset brightness standard deviation threshold, a dynamic normal signal is generated. When a dynamic normal signal is generated, the charging pile is continued to be monitored in response to the dynamic normal signal. When a dynamic warning signal is generated, the regional shape eccentricity of the orange-red area is obtained and the regional shape eccentricity is judged. If the regional shape eccentricity is greater than the preset regional shape eccentricity threshold, a level 1 warning signal is generated. If the regional shape eccentricity is less than or equal to the preset regional shape eccentricity threshold, a monitoring signal is generated. The status warning unit is used to respond to the first-level alarm signal or monitoring signal, and immediately perform the preset warning operation corresponding to the first-level alarm signal or monitoring signal, that is, the preset warning operation corresponding to the first-level alarm signal: the alarm light flashes, and the preset warning operation corresponding to the monitoring signal: continuous monitoring, so as to improve the efficiency of safety supervision of charging piles, that is, through the full process design of "image recognition-dynamic verification-multi-source cross-validation", in order to realize the closed loop from abnormality discovery to emergency response, and provide real-time and reliable technical guarantee for the safe operation of charging piles.

[0018] Example 2: When a charging signal is generated, the multi-dimensional evaluation unit is used to perform a multi-dimensional health comprehensive evaluation and analysis on the collected multi-dimensional status data of the charging pile to understand the safety of the charging pile. This allows for targeted management of the charging pile based on the information feedback to improve the charging safety of the charging pile. The specific multi-dimensional health comprehensive evaluation and analysis process is as follows: Obtain multi-dimensional status data of charging piles within the time threshold, including electrical evaluation scores, mechanical safety scores, thermal safety scores, etc. The process of obtaining multi-dimensional status data is as follows: Obtain the electrical parameters, mechanical parameters, and thermal parameters of the charging pile within the time threshold. Electrical parameters include actual charging current and active power. Mechanical parameters include the actual shaking amplitude between the charging gun head and the charging pile and the angle deviation value of the charging gun bracket. Thermal parameters include the air volume of the cooling fan outlet and the temperature rise amplitude per unit time. Retrieve the pre-set multi-dimensional status scoring model of the charging pile, which includes the electrical scoring model, mechanical scoring model, thermal safety scoring model, etc. The electrical parameters, mechanical parameters, and heat treatment parameters are input into the multidimensional state scoring model as the input layer to obtain the corresponding output results, including electrical safety score, mechanical safety score, thermal safety score, etc. Perform discriminant processing on the comprehensive state score P: If the state comprehensive score P is less than the preset state comprehensive score threshold, a risk signal is generated; If the state comprehensive score P is greater than or equal to the preset state comprehensive score threshold, a safety signal is generated; The status warning unit is used to respond to risk signals or safety signals and immediately perform the preset warning operation corresponding to the risk signal or safety signal. The preset warning operation corresponding to the risk signal is: the warning light is red, and the preset warning operation corresponding to the safety signal is: the warning light is green. In this way, the charging pile can be managed in a targeted manner based on the information feedback to improve the charging safety of the charging pile. That is, through the above multi-indicator comprehensive evaluation method and safety score calculation model, a comprehensive, objective and quantitative assessment of the safety status of the charging pile is achieved, providing strong support for the safe operation and intelligent management of the charging pile. The process of obtaining the comprehensive status score P: Each parameter in the output result is set as the state scoring parameter Zi, i = 1, 2, 3, ..., n. When i = 1, the state scoring parameter Z1 represents the electrical safety score. When i = 2, the state scoring parameter Z2 represents the mechanical safety score, and so on. At the same time, the preset proportional weight factor ri of each parameter in the output result is obtained, and the value obtained by summing the state score parameter Zi and the proportional weight factor ri is set as the state comprehensive score P (0-100); Sum: ; When a safety signal is generated, the sustainability assessment unit is used to perform a stability and performance sustainability analysis on the collected multi-dimensional status data of the charging pile, so as to rationalize and target the management of the charging pile based on the information feedback, thereby improving the continuous operation stability of the charging pile and timely preventive management. The specific stability and performance sustainability analysis process is as follows: Based on the time series, multi-dimensional status data of the next g charging piles is obtained, where g is a natural number greater than zero. A change characteristic curve of each status scoring parameter Z is constructed based on the multi-dimensional status data, and a fluctuation range interval of each status scoring parameter Z is obtained based on the change characteristic curve; And each fluctuation range interval is judged and processed. If the fluctuation range interval belongs to the preset fluctuation range interval, a health signal is generated. If the fluctuation range interval does not belong to the preset fluctuation range interval, a deviation signal is generated, and the ratio between the number corresponding to the generated deviation signal and n is obtained, and the ratio between the number corresponding to the generated deviation signal and n is set as the trend health score, and the trend health score is judged and processed. If the trend health score is less than the preset trend health score threshold, a trend warning signal is generated. If the trend health score is greater than or equal to the preset trend health score threshold, a stable trend signal is generated. The status warning unit is used to respond to the trend warning signal or the stable trend signal, and immediately perform the preset warning operation corresponding to the trend warning signal or the stable trend signal, so as to rationalize and target the management of the charging pile based on the information feedback, so as to improve the continuous operation stability and timely preventive management of the charging pile.

[0019] Example 3: The charging pile safety monitoring method based on diversified analysis includes the following steps: Step 1: Potential safety management feedback analysis process based on charging gun head status and image recognition analysis, that is, preliminary discrimination analysis of the charging gun head status of the charging pile is performed to obtain a charging signal or a standby signal. If a standby signal is obtained, further discrimination analysis is performed on the circuit voltage value of the charging gun head, and the obtained disconnection signal or contact signal is output as feedback; Step 2: Continuous safety monitoring and early warning analysis of charging piles based on image processing and regional division, that is, analyzing the collected frame feature images and outputting the obtained first-level alarm signal or monitoring signal as feedback; Step 3: The charging pile health assessment process based on information progression and multi-dimensional status data analysis, that is, a multi-dimensional health comprehensive assessment and analysis of the collected multi-dimensional status data of the charging pile is performed, the obtained comprehensive status score P is discriminated, and the obtained risk signal or safety signal is output as feedback; Step 4: Based on the stability and sustainability analysis process of the charging pile under the premise of safety, that is, trend analysis is performed on the collected multi-dimensional status data, the obtained trend health score is discriminated and processed, and the obtained trend warning signal or stable trend signal is output as feedback; To sum up, the present invention preliminarily analyzes from the perspective of the status of the charging gun head of the charging pile, so as to intuitively understand the real-time status and installation status of the charging gun head of the charging pile, so as to perform early warning management of the charging gun head that is not fully installed, so as to improve the safety of the charging pile. At the same time, it analyzes from the perspective of fire warning of the charging pile, that is, through the full process design of "image recognition-dynamic verification-multi-source cross-validation", so as to realize the closed loop from abnormal discovery to emergency response, and provide real-time and reliable technical guarantee for the safe operation of the charging pile. The multi-dimensional health comprehensive evaluation and analysis of the collected multi-dimensional status data of the charging pile is carried out in an information progressive manner. Through the multi-indicator comprehensive evaluation method and safety score calculation model, a comprehensive, objective and quantitative evaluation of the safety status of the charging pile is realized, which provides strong support for the safe operation and intelligent management of the charging pile, and at the same time improves the accuracy of the safety supervision of the charging pile. In-depth analysis is conducted from the perspective of trend, so as to rationalize and target the management of the charging pile based on information feedback, so as to improve the continuous operation stability and timely preventive management of the charging pile.

[0020] The threshold is set for result comparison and analysis in order to determine whether it is good or bad. The value of the threshold is set based on a combination of large-scale model analysis of sample data and manual experience to enter and store it. It can also be appropriately adjusted based on seasonal or common sense influencing conditions.

[0021] The size of the coefficient is to quantify each parameter to obtain a specific numerical value, which is convenient for subsequent comparison. The size of the coefficient depends on the amount of sample data and the preliminary setting of the corresponding operating coefficient for each set of sample data by technical personnel in this field; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0022] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. The charging pile safety monitoring system based on diversified analysis is characterized by: It includes charging pile safety monitoring center, potential state classification unit, safety monitoring and analysis unit, multi-dimensional evaluation unit, continuous evaluation unit and status warning unit; The charging pile safety monitoring center is used to retrieve the status of the charging gun head of the charging pile, and send the status of the charging gun head to the potential state classification unit for potential safety management feedback analysis, and judge the obtained loop voltage value; Safety monitoring and analysis unit: collects monitoring videos of charging piles, conducts continuous safety monitoring and early warning analysis on the monitoring videos, determines the eccentricity of the obtained regional shape, and obtains a first-level alarm signal or monitoring signal; Multi-dimensional evaluation unit: collects multi-dimensional status data of charging piles and conducts multi-dimensional health comprehensive evaluation and analysis; Sustainability evaluation unit: further analyzes the stability and sustainability of the collected multi-dimensional status data of the charging pile.

2. The charging pile safety monitoring system based on diversified analysis according to claim 1 is characterized in that: The potential safety management feedback analysis process is as follows: the operating time period of the charging pile is collected, and the operating time period of the charging pile is set as a time threshold, and the charging gun head status of the charging pile within the time threshold is obtained. The charging gun head status includes unplugged state and plugged in state, and the charging gun head status of the charging pile is judged and processed. If the charging gun head status is unplugged, a charging signal is generated; if the charging gun head status is plugged in, a standby signal is generated.

3. The charging pile safety monitoring system based on diversified analysis according to claim 2 is characterized in that: The analysis process of the unplugged state and the plugged-in state is as follows: obtain the monitoring video of the charging pile interface, extract the contour shape feature image of the charging gun head and the charging pile interface from the monitoring video in real time, and at the same time call the shape feature image of the charging gun head and the charging pile interface when inserted, obtain the similarity between the contour shape feature image and the shape feature image, and set the similarity between the contour shape feature image and the shape feature image as the state fit, and perform a judgment on the state fit. If the state fit is greater than the preset state fit threshold, it is determined to be an inserted state. If the state fit is less than or equal to the preset state fit threshold, it is determined to be an unplugged state.

4. The charging pile safety monitoring system based on diversified analysis according to claim 3 is characterized in that: When the standby signal is generated, the circuit voltage value of the charging gun head within the time threshold is obtained and the circuit voltage value is judged and processed. If the circuit voltage value is equal to zero, a disconnection signal is generated; if the circuit voltage value is not equal to zero, a bonding signal is generated.

5. The charging pile safety monitoring system based on diversified analysis according to claim 1 is characterized in that: The continuous security monitoring and early warning analysis process is as follows: The monitoring video of the charging pile is collected by a camera, and a frame feature image of the charging pile is obtained based on the monitoring video, and the frame feature image is preprocessed; The preprocessed frame feature image is converted into an RGB color feature image, and the orange-red pixel ratio value in the orange-red area is obtained based on the RGB color feature image; The orange-red pixel ratio is then discriminated and processed to obtain a warning signal or a regular signal.

6. The charging pile safety monitoring system based on diversified analysis according to claim 5 is characterized in that: When generating a warning signal, m consecutive frame feature images are obtained, where m is a natural number greater than zero. The brightness standard deviation of the orange-red area is obtained based on the m consecutive frame feature images, and the brightness standard deviation of the orange-red area is discriminated and processed to obtain a dynamic warning signal or a dynamic normal signal; When a dynamic warning signal is generated, the regional shape eccentricity of the orange-red area is obtained, and the regional shape eccentricity is judged and processed. If the regional shape eccentricity is greater than the preset regional shape eccentricity threshold, a first-level alarm signal is generated; if the regional shape eccentricity is less than or equal to the preset regional shape eccentricity threshold, a monitoring signal is generated.

7. The charging pile safety monitoring system based on diversified analysis according to claim 1 is characterized in that: The multi-dimensional health comprehensive assessment and analysis process is as follows: Obtain multi-dimensional status data of the charging pile within the time threshold, which includes electrical evaluation scores, mechanical safety scores, and thermal safety scores; retrieve a pre-set multi-dimensional status scoring model for the charging pile, which includes an electrical scoring model, a mechanical scoring model, and a thermal safety scoring model; The electrical parameters, mechanical parameters, and heat treatment parameters are input into the multidimensional state scoring model as the input layer to obtain the corresponding output results, which include electrical safety score, mechanical safety score, and thermal safety score; The comprehensive status score P is discriminated and processed to obtain a risk signal or a safety signal.

8. The charging pile safety monitoring system based on diversified analysis according to claim 7 is characterized in that: The process of acquiring multi-dimensional status data is as follows: the electrical parameters, mechanical parameters, and thermal treatment parameters of the charging pile within the time threshold are obtained. Electrical parameters include actual charging current and active power. Mechanical parameters include the actual shaking amplitude between the charging gun head and the charging pile and the angle deviation value of the charging gun bracket. Thermal treatment parameters include the air volume of the cooling fan outlet and the temperature rise amplitude per unit time. The process of obtaining the comprehensive state score P is as follows: each parameter in the output result is set as the state score parameter Zi, i = 1, 2, 3, ..., n, and at the same time, the pre-set proportional weight factor ri of each parameter in the output result is obtained, and the value obtained by summing the state score parameter Zi and the proportional weight factor ri is set as the comprehensive state score P.

9. The charging pile safety monitoring system based on diversified analysis according to claim 1 is characterized in that: The stability performance sustainability analysis process is as follows: based on the time series, multi-dimensional status data of the next g charging piles is obtained, where g is a natural number greater than zero; based on the multi-dimensional status data, a change characteristic curve of each status scoring parameter Z is constructed; and based on the change characteristic curve, a fluctuation range interval of each status scoring parameter Z is obtained; And perform discrimination processing on each fluctuation range interval to obtain a health signal and a deviation signal, obtain the ratio between the number corresponding to the generated deviation signal and n, and set the ratio between the number corresponding to the generated deviation signal and n as the trend health score, and perform discrimination processing on the trend health score to obtain a trend warning signal or a stable trend signal.

10. A charging pile safety monitoring method based on diversified analysis, the method being applied to the charging pile safety monitoring system based on diversified analysis according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Potential safety management feedback analysis process based on charging gun head status and image recognition analysis; Step 2: Continuous safety monitoring and early warning analysis of charging piles based on image processing and area division; Step 3: Charging pile health assessment process based on information progression and multi-dimensional status data analysis; Step 4: Continuous analysis of the stability and performance of charging piles based on their safety.

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