Automatic safety monitoring method and system for charging pile

Abstract

The invention relates to the technical field of charging pile monitoring, in particular to an automatic safety monitoring method and system for a charging pile. The method comprises the steps of obtaining a charging instruction provided by a user, and prompting the user to perform charging operation; controlling the charging pile for the electric vehicle to perform interference factor monitoring, and judging whether interference factors exist or not according to a monitoring result; if the interference factors exist, outputting corresponding interference prompt information, controlling at least one camera to monitor and analyze the user operation, and determining an operation analysis result; according to the operation analysis result, whether the interference factors are eliminated or not is judged, and if yes, the charging pile for the electric vehicle is controlled to charge the electric vehicle. According to the invention, potential safety hazards caused by misoperation of a user can be found and eliminated in time, the potential safety hazards are eliminated in the germination stage, and serious safety accidents caused by continuous existence of interference factors in the charging process are effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of charging pile monitoring, and in particular to an automated safety monitoring method and system for charging piles. Background Art

[0002] With the rapid development of the electric vehicle industry, electric vehicles have become more and more popular as a clean energy means of transportation, which has promoted the popularization and development of charging infrastructure supporting electric vehicles. Electric vehicle charging stations can meet the charging needs of electric vehicles during long-distance driving, making it convenient for drivers to charge during long-distance travel and alleviate charging anxiety.

[0003] However, since there are no professional personnel on duty in existing electric vehicle charging stations, a monitoring system is usually used to monitor the electric vehicle charging process. It is impossible to promptly detect and eliminate safety hazards caused by improper operation of electric vehicle drivers, resulting in safety problems easily occurring during the electric vehicle charging process due to improper operation of electric vehicle drivers. Summary of the invention

[0004] The present application provides an automated safety monitoring method and system for a charging pile to solve the above-mentioned technical problems.

[0005] In a first aspect, the present application provides an automated safety monitoring method for a charging pile, which is applied to a charging pile for an electric vehicle, wherein the charging pile for the electric vehicle comprises at least one camera, and the method comprises: Obtaining a charging instruction provided by a user, and prompting the user to perform a charging operation; Controlling the electric vehicle charging pile to monitor interference factors, and judging whether there are interference factors according to the monitoring results; If the interference factor exists, output corresponding interference prompt information, and control the at least one camera to monitor and analyze the user operation to determine the operation analysis result; According to the operation analysis result, it is determined whether the interference factor is eliminated. If it is eliminated, the electric vehicle is controlled to charge the electric vehicle using a charging pile.

[0006] The solution of the present application provides charging operation guidance to users who need to use electric vehicle charging piles to charge their electric vehicles, and during the user's charging operation, monitors interference factors that may have a negative impact on the safety of the charging process due to improper user operation, and prompts the user to pay attention to and eliminate the current interference factors to ensure the safety of the subsequent charging process. It can promptly discover and eliminate safety hazards caused by improper user operation, eliminate safety hazards in the bud, and effectively avoid serious safety accidents caused by the continued existence of interference factors during the charging process.

[0007] Optionally, the electric vehicle charging pile further comprises at least one photoelectric sensor and at least one current sensor, and the at least one photoelectric sensor and the at least one current sensor are both arranged in a charging gun placement slot of the electric vehicle charging pile, and the method further comprises: Before the user performs a charging operation, the photoelectric sensor is controlled to detect the placement state of the charging gun to determine whether the charging gun is located in the charging gun placement slot; If the charging gun is not located in the charging gun placement slot, output a warning prompt message; If the charging gun is located in the charging gun placement slot, controlling the at least one current sensor to detect the working state of the charging gun to determine whether the charging gun is in a normal state; If the charging gun is not in a normal state, the electric vehicle is controlled to lock the charging gun using a charging pile.

[0008] Through the above technical solution, before the user performs the charging operation, the position of the charging gun is detected. When the charging gun is not located in the corresponding charging gun placement slot, in order to prevent the user from directly using the charging gun that may have been affected by the outside world and has abnormalities for charging operations, a warning prompt message is used to prompt the user to first place the charging gun in the charging gun placement slot, and the charging gun is detected by the current sensor in the charging gun placement slot to ensure that the charging gun is not damaged and is in a safe and normal state. Only then is the user allowed to use the charging gun for subsequent operations. If the charging gun is not in a normal state, the charging gun is locked to prevent the user from using the abnormal charging gun for dangerous operations, thereby effectively ensuring the safety of the user's use of the charging gun.

[0009] Optionally, the electric vehicle charging pile further comprises at least one vibration sensor, a plurality of metal wires are arranged in the insulation layer of the charging cable of the electric vehicle charging pile, and the plurality of metal wires are connected to the at least one vibration sensor, and the controlling the electric vehicle charging pile to monitor interference factors and judging whether the interference factors exist according to the monitoring results include: Controlling the vibration sensor to obtain vibration signals of the plurality of metal wires and determine vibration data; Analyzing the vibration data to extract vibration characteristic information; The vibration characteristic information is compared with a preset vibration characteristic range. If the vibration characteristic information is outside the preset vibration characteristic range, cable wear is regarded as the interference factor.

[0010] Through the above technical solution, a number of metal wires connected to the vibration sensor are embedded in the insulation layer of the charging cable. The vibration signal of the metal wire is detected by the vibration sensor to obtain vibration data. According to the vibration data, the vibration characteristic information is determined. When the vibration characteristic information is outside the preset vibration characteristic range, it means that the wear degree of the insulation layer on the surface of the current charging cable is already quite serious. The cable wear is determined as an interference factor, and the corresponding prompt information is output to prevent the user from continuing to use the severely worn charging cable for charging operations, thereby further ensuring the personal safety of the user and the safety of the charging process.

[0011] Optionally, the electric vehicle charging pile further comprises at least one resistance sensor, the plurality of metal wires are further connected to the resistance sensor, and the controlling the electric vehicle charging pile to monitor interference factors and judging whether the interference factors exist according to the monitoring results include: Controlling the resistance sensor to obtain the resistance values ​​of the plurality of metal wires and determining a plurality of resistance change data; Determining the wire core pressure value according to the plurality of resistance change data and the initial data of the plurality of metal wires; The core pressure value is compared with a preset core pressure threshold. If the core pressure value is greater than the preset core pressure threshold, the cable pressure is used as the interference factor.

[0012] Through the above technical scheme, the resistance of several metal wires arranged in the insulation layer of the charging cable is monitored by a resistance sensor. When the resistance of the metal wire changes abnormally, it is determined that the metal wire is deformed, and then it is determined that the current charging cable is under pressure. Then, based on the resistance change data and initial data of the metal wire, the core pressure value is obtained. According to the core pressure value, it can be determined whether the current pressure on the charging cable affects the work of the core. If it does, the cable pressure is used as an interference factor, which effectively realizes real-time monitoring of the external pressure on the charging cable during its operation, and further ensures the safety of the charging process.

[0013] Optionally, the initial data includes but is not limited to an initial cross-sectional area, an initial diameter, an initial resistance value, a resistivity and a wire length, and determining the wire core pressure value according to the resistance change data and the initial data of the plurality of metal wires includes: Comparing the plurality of resistance change data with the initial resistance value respectively, and determining the resistance change data having the largest difference with the initial resistance value as the current resistance value; The core pressure value is determined according to the initial cross-sectional area, the initial diameter, the initial resistance value, the resistivity, the wire length and the current resistance value, referring to the following formula: ; in, is the core pressure value, is the pressure transmission coefficient, is the initial cross-sectional area, is the resistivity, is the wire length, is the current resistance value, is the Young's modulus of the metal wire, is the initial diameter.

[0014] Through the above technical scheme, the influence of the initial cross-sectional area, initial diameter, initial resistance value, resistivity, wire length and current resistance value of the metal conductor on the pressure value of the wire core is comprehensively considered, and the design formula is used to accurately calculate the pressure value of the wire core to quantify the pressure condition of the wire core, which provides important and accurate data basis for judging whether the external pressure on the current charging cable affects the normal operation of the wire core.

[0015] Optionally, controlling the charging pile for the electric vehicle to monitor interference factors, and judging whether interference factors exist according to the monitoring results, includes: Controlling the at least one camera to identify and record the parking space marking position of the supporting parking space of the electric vehicle charging pile; Controlling the at least one camera to identify the position of the charging cable of the charging pile for the electric vehicle; Analyze the parking space marking position and the charging cable position to determine whether there is an intersection between the parking space marking and the charging cable; If the intersection situation exists, control the at least one camera to identify whether the charging gun is located in the current matching parking space; If the charging gun is located in the current supporting parking space, the abnormal cable position is regarded as the interference factor.

[0016] Through the above technical solution, when the user is performing charging operations, at least one camera is used to respectively identify the position of the parking space marking, the charging cable and the charging gun, and then determine whether the parking space marking intersects the charging cable based on the position of the parking space marking and the charging cable, and then determine whether the current user is in a state of preparing to charge based on the position of the charging gun, thereby preventing the situation where part of the charging cable is located in other parking spaces and is crushed by other vehicles during the charging process, further extending the service life of the charging cable and further improving the safety of the charging process.

[0017] Optionally, the method further includes: If the charging gun is not located in the current matching parking space, identifying the parking space currently occupied by the vehicle through the at least one camera; Determine the matching charging pile for the parking space currently occupied by the vehicle according to the parking space currently occupied by the vehicle; Obtaining the status information of the matching charging pile, and if the status information is in an available state, outputting corresponding prompt information; If the status information is in an unavailable state, identifying whether there is a vehicle in the current parking space supporting the charging pile through the at least one camera; If there is a vehicle in the current charging pile supporting parking space, the at least one camera is used to identify the license plate information of the vehicle in the current charging pile supporting parking space, and the reservation status of the vehicle in the current charging pile supporting parking space is determined according to the license plate information; If the reservation status is reserved, unreasonable occupation of the charging pile will be regarded as the interference factor.

[0018] Through the above technical solution, the location of the charging gun, the available status of the charging pile and the vehicle reservation status are comprehensively considered to judge whether the user has unreasonably occupied the charging pile, thereby preventing some users from causing inconvenience to subsequent charging users for their own convenience, reducing disputes among users due to the occupation of charging piles, and improving the user experience.

[0019] Optionally, determining the reservation status of the vehicle in the current charging pile supporting parking space according to the license plate information includes: When the vehicle enters the supporting parking space, the at least one camera is used to identify the owner's leaving status and obtain the charging gun status; If the owner's departure status is the departed status and the charging gun status is the unconnected status, a reservation reminder message is sent to the owner's terminal according to the license plate information, and a reservation confirmation operation is obtained; Analyze the reservation confirmation operation, and if the reservation confirmation operation is a positive operation, determine the reservation status as reserved; If the reservation confirmation operation is a negative operation, the reservation status is determined to be not reserved.

[0020] Through the above technical solution, when the car owner leaves without performing charging operations, in order to prevent the charging pile from being occupied by other users when the current vehicle needs to charge, the reservation reminder information is sent to the terminal device used by the car owner according to the vehicle license plate information, so that the car owner can make an online charging reservation, further improving the user experience.

[0021] Optionally, the method further includes: When the user completes the charging process and pulls out the charging gun, outputting a charging gun placement prompt message; Within a preset charging gun placement monitoring time, determining whether the charging gun is located in the charging gun placement slot by means of the at least one photoelectric sensor; If the charging gun is not located in the charging gun placement slot within the preset charging gun placement monitoring time, the user is charged for abnormal operation, and deduction prompt information is determined and sent to the user terminal.

[0022] Through the above technical solution, when the user forgets to put the charging gun back into the charging gun placement slot, the charging gun placement prompt information will prompt the user to perform the placement operation. If the user deliberately does not put the charging gun back into the charging gun placement slot, the user will be charged for the abnormal operation, and the corresponding deduction prompt information will be sent to the user's terminal to avoid damage to the charging gun due to the charging gun being outside the charging gun placement slot for a long time, further improving the service life of the charging gun and reducing the failure rate of the charging pile.

[0023] In a second aspect, the present application provides an automated safety monitoring system for a charging pile, the system comprising: A prompting module, used to obtain a charging instruction provided by a user and prompt the user to perform a charging operation; An interference monitoring module is used to control the electric vehicle charging pile to monitor interference factors, and determine whether there are interference factors based on the monitoring results; An operation monitoring module, used to output corresponding interference prompt information if the interference factor exists, and control at least one camera to monitor and analyze the user operation to determine the operation analysis result; The control module is used to determine whether the interference factor is eliminated according to the operation analysis result, and if eliminated, control the electric vehicle to charge the electric vehicle using a charging pile.

[0024] Optionally, the system further includes a charging gun detection module, which is specifically used to: Before the user performs a charging operation, the photoelectric sensor is controlled to detect the placement state of the charging gun to determine whether the charging gun is located in the charging gun placement slot; If the charging gun is not located in the charging gun placement slot, output a warning prompt message; If the charging gun is located in the charging gun placement slot, controlling the at least one current sensor to detect the working state of the charging gun to determine whether the charging gun is in a normal state; If the charging gun is not in a normal state, the electric vehicle is controlled to lock the charging gun using a charging pile.

[0025] Optionally, the interference monitoring module is specifically used to: Controlling the vibration sensor to obtain vibration signals of the plurality of metal wires and determine vibration data; Analyzing the vibration data to extract vibration characteristic information; The vibration characteristic information is compared with a preset vibration characteristic range. If the vibration characteristic information is outside the preset vibration characteristic range, cable wear is regarded as the interference factor.

[0026] Optionally, the interference monitoring module is specifically used to: Controlling the resistance sensor to obtain the resistance values ​​of the plurality of metal wires and determining a plurality of resistance change data; Determining the wire core pressure value according to the plurality of resistance change data and the initial data of the plurality of metal wires; The core pressure value is compared with a preset core pressure threshold. If the core pressure value is greater than the preset core pressure threshold, the cable pressure is used as the interference factor.

[0027] Optionally, the interference monitoring module is specifically used to: Comparing the plurality of resistance change data with the initial resistance value respectively, and determining the resistance change data having the largest difference with the initial resistance value as the current resistance value; The core pressure value is determined according to the initial cross-sectional area, the initial diameter, the initial resistance value, the resistivity, the wire length and the current resistance value, referring to the following formula: ; in, is the core pressure value, is the pressure transmission coefficient, is the initial cross-sectional area, is the resistivity, is the wire length, is the current resistance value, is the Young's modulus of the metal wire, is the initial diameter.

[0028] Optionally, the interference monitoring module is specifically used to: Controlling the at least one camera to identify and record the parking space marking position of the supporting parking space of the electric vehicle charging pile; Controlling the at least one camera to identify the position of the charging cable of the charging pile for the electric vehicle; Analyze the parking space marking position and the charging cable position to determine whether there is an intersection between the parking space marking and the charging cable; If the intersection situation exists, control the at least one camera to identify whether the charging gun is located in the current matching parking space; If the charging gun is located in the current supporting parking space, the abnormal cable position is regarded as the interference factor.

[0029] Optionally, the system further includes an occupancy detection module, specifically configured to: If the charging gun is not located in the current matching parking space, identifying the parking space currently occupied by the vehicle through the at least one camera; Determine the matching charging pile for the parking space currently occupied by the vehicle according to the parking space currently occupied by the vehicle; Obtaining the status information of the matching charging pile, and if the status information is in an available state, outputting corresponding prompt information; If the status information is in an unavailable state, identifying whether there is a vehicle in the current parking space supporting the charging pile through the at least one camera; If there is a vehicle in the current charging pile supporting parking space, the at least one camera is used to identify the license plate information of the vehicle in the current charging pile supporting parking space, and the reservation status of the vehicle in the current charging pile supporting parking space is determined according to the license plate information; If the reservation status is reserved, unreasonable occupation of the charging pile will be regarded as the interference factor.

[0030] Optionally, the occupancy detection module is specifically used to: When the vehicle enters the supporting parking space, the at least one camera is used to identify the owner's leaving status and obtain the charging gun status; If the owner's departure status is the departed status and the charging gun status is the unconnected status, a reservation reminder message is sent to the owner's terminal according to the license plate information, and a reservation confirmation operation is obtained; Analyze the reservation confirmation operation, and if the reservation confirmation operation is a positive operation, determine the reservation status as reserved; If the reservation confirmation operation is a negative operation, the reservation status is determined to be not reserved.

[0031] Optionally, the system further includes an exception handling module, specifically configured to: When the user completes the charging process and pulls out the charging gun, outputting a charging gun placement prompt message; Within a preset charging gun placement monitoring time, determining whether the charging gun is located in the charging gun placement slot by means of the at least one photoelectric sensor; If the charging gun is not located in the charging gun placement slot within the preset charging gun placement monitoring time, the user is charged for abnormal operation, and deduction prompt information is determined and sent to the user terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 A schematic diagram of an application scenario provided for an embodiment of the present application; Figure 2 A flowchart of an automated safety monitoring method for a charging pile provided in one embodiment of the present application; Figure 3 A schematic diagram of the cross section of a charging cable provided in one embodiment of the present application; Figure 4 A schematic diagram of the structure of an automated safety monitoring system for a charging pile provided in one embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0036] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0037] Since there are no professional personnel on duty in existing electric vehicle charging stations, a monitoring system is usually used to monitor the electric vehicle charging process. However, it is impossible to promptly detect and eliminate safety hazards caused by improper operation of electric vehicle drivers, resulting in safety problems easily occurring during the electric vehicle charging process due to improper operation of electric vehicle drivers.

[0038] Based on this, the present application provides an automated safety monitoring method and system for charging piles, which provide charging operation guidance to users who need to use electric vehicle charging piles to charge their electric vehicles, and during the user's charging operation, monitor interference factors that may have a negative impact on the safety of the charging process due to improper user operation, and prompt the user to pay attention to and eliminate the current interference factors to ensure the safety of the subsequent charging process. It can promptly discover and eliminate safety hazards caused by improper user operation, eliminate safety hazards in the bud, and effectively avoid serious safety accidents caused by the continued existence of interference factors during the charging process.

[0039] Figure 1 A schematic diagram of an application scenario provided for the present application, when a user operates an electric vehicle to charge the electric vehicle using a charging pile, the method of the present application is applied to monitor interference factors during the charging process to improve the safety of the charging process.

[0040] The method of the present application is applied to a charging pile for electric vehicles. Specifically, after receiving a charging instruction sent by a user, the user is guided in charging operations, and during the user's charging operation, interference factors that may have a negative impact on the safety of the charging process due to improper operation of the user are monitored, the user is prompted to pay attention to and eliminate the current interference factors, and the user's operation is monitored. After the interference factors are eliminated, the electric vehicle is charged to ensure the safety of the subsequent charging process. The safety hazards caused by improper user operation can be discovered and eliminated in a timely manner, and the safety hazards can be eliminated in the bud, effectively avoiding serious safety accidents caused by the continued existence of interference factors during the charging process.

[0041] For specific implementation methods, please refer to the following embodiments.

[0042] Figure 2 This is a flow chart of an automatic safety monitoring method for a charging pile provided in one embodiment of the present application. The method of this embodiment can be applied to the charging piles for electric vehicles in the above scenarios. Figure 2 As shown, the method includes: S201: Obtain a charging instruction provided by a user, and prompt the user to perform a charging operation.

[0043] The user may be a person who needs to charge an electric vehicle using an electric vehicle charging pile.

[0044] The charging instruction can be charging information sent by the user to the electric vehicle charging pile through a mobile terminal, such as a smart phone, or charging information sent after verification by the electric vehicle charging pile using authentication means, such as swiping a card.

[0045] The charging operation can be considered as a series of operations performed by a user using an electric vehicle charging pile to charge an electric vehicle.

[0046] In a specific implementation method, users can use a mobile terminal, such as a smart phone, to scan the QR code on the electric vehicle charging pile, and then send charging instructions to the electric vehicle charging pile. They can also use authentication methods supported by the electric vehicle charging pile, such as swiping a designated IC card, to send charging instructions to the electric vehicle charging pile. After obtaining the charging instructions, the electric vehicle charging pile can prompt the user to perform charging operations through text and voice prompts to help the user complete and standardize a series of operations in the charging process.

[0047] S202: Control the charging pile for the electric vehicle to monitor interference factors, and determine whether there are interference factors based on the monitoring results.

[0048] Interference factors can be considered as a series of factors that will have a negative impact on the charging process due to improper human operation during the charging of electric vehicles using charging piles, such as cable wear, cable pressure and abnormal cable position.

[0049] Specifically, in the process of users using electric vehicle charging piles to charge their electric vehicles, improper operation by users will have a significant negative impact on the charging process. For example, when the user takes the charging gun, the charging cable drags on the ground. In the process of the user dragging the charging cable, the surface insulation layer of the charging cable repeatedly rubs against the ground. Over time, the surface insulation layer of the charging cable is severely worn, which makes the charging cable prone to leakage during charging and causes safety accidents. Therefore, monitoring of interference factors is very important, which can effectively nip safety hazards in the bud.

[0050] S203: If there are interference factors, output corresponding interference prompt information, and control at least one camera to monitor and analyze the user operation to determine the operation analysis result.

[0051] The interference prompt information can be considered as relevant information that prompts the current user to pay attention to and eliminate the interference factor when the interference factor currently exists. The interference prompt information can be output in the form of text and voice.

[0052] The user operation may be a series of actions performed by the current user after receiving the interference prompt information.

[0053] Specifically, when there are interference factors, the user needs to be prompted to eliminate the interference factors to ensure the safety of the subsequent charging process. For example, when the cable position is abnormal, that is, part of the cable is located in an area that is easily crushed by other vehicles, the user needs to be prompted to move part of the cable to a position that is not easily crushed by other vehicles to prevent the charging cable from being crushed by other vehicles during charging, causing abnormal heating of the compressed part and causing safety accidents. The camera monitors and identifies a series of actions of the user after receiving the interference prompt operation, and by analyzing the user's series of actions, it is determined whether the interference factor still exists, thereby determining the operation analysis result.

[0054] S204: judging whether the interference factor is eliminated according to the operation analysis result, and if eliminated, controlling the electric vehicle to charge the electric vehicle using the charging pile.

[0055] Specifically, after the interference prompt information is output, the camera is used to identify whether the user has performed the interference factor elimination operation according to the interference prompt information, and then determine whether the interference factor has been eliminated. If it has been eliminated, it means that the current charging safety is guaranteed, and the electric vehicle can be controlled to charge the electric vehicle using a charging pile.

[0056] If some interference factors are not eliminated, corresponding voice prompt information is output according to the interference factors that are not eliminated, so as to prompt and guide the user to further eliminate the interference factors.

[0057] Through the solution provided in this embodiment, charging operation guidance is provided to users who need to use electric vehicle charging piles to charge electric vehicles. During the user's charging operation, interference factors that may have a negative impact on the safety of the charging process due to improper user operation are monitored, and the user is prompted to pay attention to and eliminate the current interference factors to ensure the safety of the subsequent charging process. Safety hazards caused by improper user operation can be discovered and eliminated in a timely manner, and safety hazards can be eliminated in the bud, effectively avoiding serious safety accidents caused by the continued existence of interference factors during the charging process.

[0058] In some embodiments, before obtaining the charging instruction provided by the user, the photoelectric sensor is controlled to detect the placement status of the charging gun to determine whether the charging gun is located in the charging gun placement slot; if the charging gun is not located in the charging gun placement slot, a warning prompt message is output; if the charging gun is located in the charging gun placement slot, at least one current sensor is controlled to detect the working status of the charging gun to determine whether the charging gun is in a normal state; if the charging gun is not in a normal state, the electric vehicle is controlled to lock the charging gun with a charging pile.

[0059] The charging pile for the electric vehicle also includes at least one photoelectric sensor and at least one current sensor, and the at least one photoelectric sensor and the at least one current sensor are both arranged in the charging gun placement slot of the charging pile for the electric vehicle.

[0060] The warning prompt information may be a prompt information used to warn the user that there may be a safety hazard in the current charging gun position, and to prompt the user to place the current charging gun into the charging gun placement slot.

[0061] In a specific implementation method, some users do not put the charging gun back into the charging gun placement slot of the electric vehicle charging pile after using the charging gun to complete the charging of the electric vehicle, causing the charging gun to be exposed to the outside world for a long time and being subjected to external interference for a long time, such as sunlight exposure, rain erosion, and dust residue, which leads to a decrease in the safety and stability of the charging gun, and even damage to the charging gun. Therefore, when the current charging gun is not located in the charging gun placement slot, in order to ensure the safety of the current user, a warning prompt message is used to prompt the current user to place the charging gun into the corresponding charging gun placement slot. When the charging gun is placed in the charging gun placement slot, the current charging gun is detected by a current sensor to ensure that the charging gun is not damaged and is in a safe and normal state. Only then is the user allowed to use the charging gun for subsequent operations. If the current sensor detects that the charging gun is damaged or has abnormal conditions such as leakage, the current charging gun is locked by a physical locking structure in the charging gun placement slot to prevent the user from using the abnormal charging gun for dangerous operations.

[0062] Through the solution provided in this embodiment, the position of the charging gun is detected before the user performs a charging operation. When the charging gun is not located in the corresponding charging gun placement slot, in order to prevent the user from directly using the charging gun that may have been affected by the outside world and has abnormalities for charging operations, a warning prompt message is used to prompt the user to first place the charging gun into the charging gun placement slot, and the charging gun is detected by the current sensor in the charging gun placement slot to ensure that the charging gun is not damaged and is in a safe and normal state. Only then is the user allowed to use the charging gun for subsequent operations. If the charging gun is not in a normal state, the charging gun is locked to prevent the user from using the abnormal charging gun for dangerous operations, thereby effectively ensuring the safety of the user's use of the charging gun.

[0063] In some embodiments, a vibration sensor is controlled to obtain vibration signals of several metal wires to determine vibration data; the vibration data is analyzed to extract vibration characteristic information; the vibration characteristic information is compared with a preset vibration characteristic range, and if the vibration characteristic information is outside the preset vibration characteristic range, cable wear is regarded as an interference factor.

[0064] The charging pile for the electric vehicle also includes at least one vibration sensor. A plurality of metal wires are arranged in the insulation layer of the charging cable of the charging pile for the electric vehicle, and the plurality of metal wires are all connected to the at least one vibration sensor.

[0065] The metal conductor can be a metal wire conductor with a small diameter that can be embedded in the insulation layer of the charging cable. The arrangement structure of several metal conductors in the insulation layer of the charging cable is shown in FIG. Figure 3 .

[0066] The vibration signal may be vibration signal data generated by the metal wire after being rubbed.

[0067] The vibration data may be vibration change data of the metal wire obtained by integrating vibration signals over a period of time.

[0068] The vibration characteristic information may include a series of characteristic information during the vibration of the metal wire, such as vibration frequency and vibration amplitude.

[0069] The preset vibration characteristic range may be a normal range of the vibration characteristics of the metal wire when the metal wire is normally embedded in the insulation layer of the charging cable and the charging cable rubs against the ground. The preset vibration characteristic range may be obtained through experiments.

[0070] Specifically, in order to adapt to the charging port positions of different charging vehicles, the charging cables on the charging piles for electric vehicles are usually reserved with sufficient length, which causes some users to drag the excessively long cables on the ground when using the charging gun. As a result, when the user takes the charging gun to charge the electric vehicle, part of the charging cable repeatedly rubs against the ground, causing the insulation layer on the surface of the charging cable to be worn, increasing the risk of leakage of the charging cable. By embedding a number of metal wires connected to vibration sensors in the insulation layer of the charging cable, the vibration signals of the metal wires are detected. Combined with the monitoring time, vibration data reflecting the vibration changes of the metal wires can be obtained. The vibration frequency data and vibration amplitude data that can express the vibration characteristics of the metal wires are extracted from the vibration data through the vibration sensor.

[0071] When the insulation layer on the charging cable surface is severely worn, the thickness of the insulation layer is significantly reduced, and the metal wire may even be in direct contact with the ground. At this time, the vibration characteristic information of the metal wire will change significantly. Specifically, the high-frequency signal in the vibration frequency increases, and the proportion of the high-frequency signal in the entire vibration frequency information suddenly increases. At the same time, the vibration amplitude increases significantly and cannot remain in a stable state. When the vibration characteristic information undergoes the above changes, it will not be within the preset vibration characteristic range. Therefore, when the vibration characteristic information is outside the preset vibration characteristic range, it indicates that the degree of wear of the insulation layer on the current charging cable surface is already serious. If the charging operation continues, the safety risk will increase significantly. Therefore, it can be determined that cable wear is an interference factor.

[0072] In other embodiments, when the interference factor is cable wear, a corresponding prompt message is output to remind the user that the cable is severely worn and needs to be handled by professional maintenance personnel, or use other idle charging piles.

[0073] Through the solution provided by this embodiment, a number of metal wires connected to the vibration sensor are embedded in the insulation layer of the charging cable. The vibration sensor detects the vibration signal of the metal wire to obtain vibration data. According to the vibration data, vibration characteristic information is determined. When the vibration characteristic information is outside the preset vibration characteristic range, it indicates that the wear degree of the insulation layer on the surface of the current charging cable is already quite serious. The cable wear is determined as an interference factor, and corresponding prompt information is output to prevent the user from continuing to use the severely worn charging cable for charging operations, thereby further ensuring the personal safety of the user and the safety of the charging process.

[0074] In some embodiments, a resistance sensor is controlled to obtain resistance values ​​of a number of metal wires and determine a number of resistance change data; a core pressure value is determined based on the number of resistance change data and the initial data of the number of metal wires; the core pressure value is compared with a preset core pressure threshold value, and if the core pressure value is greater than the preset core pressure threshold value, the cable pressure is taken as an interference factor.

[0075] The charging pile for the electric vehicle also includes at least one resistance sensor, and a plurality of metal wires are also connected to the resistance sensor.

[0076] The resistance change data may be difference data between a current resistance value of the metal wire and an initial resistance value, and the initial resistance value may be considered to be the resistance value of the metal wire in a factory state.

[0077] The initial data can be considered as a series of parameters of the metal wire in the factory state, such as initial resistance value, initial cross-sectional area, and initial diameter.

[0078] The core pressure value can be considered as the external pressure value of the core wire in the middle of the charging cable used to power the charging vehicle. The specific position of the core can be referred to Figure 3 .

[0079] The preset wire core pressure threshold may be a maximum external pressure value that the wire core can withstand while maintaining a normal working state. The preset wire core pressure threshold may be obtained through pressure test data on the wire core.

[0080] Specifically, when users use electric vehicle charging piles to charge their electric vehicles, the charging cable is designed with a margin, and the margin cable usually comes into contact with the ground, causing the charging cable to be easily crushed by passing electric vehicles or accidentally stepped on by users. When the charging cable is subjected to greater external pressure, it can easily cause damage to the insulation layer and internal wire core on the cable surface, causing partial overheating of the charging cable during the charging process, and even causing a short circuit in the charging cable, causing a fire.

[0081] By monitoring the resistance changes of several metal wires through resistance sensors connected to the insulation layer of the charging cable, it can be known whether the charging cable is currently under external pressure. Because when the charging cable is under pressure, the metal wire will deform under the influence of pressure, and the resistance of the metal wire is inversely proportional to its cross-sectional area. Therefore, when the metal wire is under pressure, its resistance will change significantly, and the resistance change data of the metal wire can reflect the current pressure on the charging cable, and then deduce the pressure value of the core located in the middle of the charging cable, that is, the core pressure value. By comparing the core pressure value with the preset core pressure threshold, it can be determined whether the current pressure on the charging cable is within its tolerance range. If the core pressure value is greater than the preset core pressure threshold, it means that the current pressure on the charging cable has affected the normal operation of the core. If charging continues at this time, the safety risk will be significantly increased, so the cable pressure can be used as an interference factor.

[0082] In other embodiments, when the interference factor is cable compression, a corresponding prompt message is output to indicate that the current wire core is under pressure and cannot work normally, and the corresponding electric vehicle charging pile is controlled to cut off the power to the charging cable, and then the relevant abnormal information is sent to professional maintenance personnel, waiting for them to process, so as to ensure the safety of the charging process.

[0083] Through the scheme provided by this embodiment, the resistance of several metal wires arranged in the insulation layer of the charging cable is monitored by a resistance sensor. When the resistance of the metal wire changes abnormally, it is determined that the metal wire is deformed, and then it is determined that the current charging cable is under pressure. Then, according to the resistance change data and initial data of the metal wire, the core pressure value is obtained. According to the core pressure value, it can be determined whether the current pressure on the charging cable affects the work of the core. If it does, the cable pressure is used as an interference factor, which effectively realizes real-time monitoring of the external pressure on the charging cable during its operation, and further ensures the safety of the charging process.

[0084] In some embodiments, several resistance change data are compared with the initial resistance value respectively, and the resistance change data with the largest difference from the initial resistance value is determined as the current resistance value; according to the initial cross-sectional area, initial diameter, initial resistance value, resistivity, wire length and current resistance value, the wire core pressure value is determined, referring to formula (1): (1) in, is the wire core pressure value, is the pressure transmission coefficient, is the initial cross-sectional area, is the resistivity, is the wire length, is the current resistance value, is the Young's modulus of the metal conductor, is the initial diameter.

[0085] The initial resistance value may be the resistance value of the metal wire in a factory state.

[0086] The initial cross-sectional area may be the area value of the cross section of the metal wire in the factory state.

[0087] The initial diameter may be a diameter value of the metal wire in a normal state.

[0088] Resistivity can be the resistance per unit length of a metal conductor. Resistivity is a physical constant and is related to the specific material of the metal conductor.

[0089] The wire length may be the length of a metal wire.

[0090] The current resistance value may be a resistance value of the metal wire after it is deformed by an external force.

[0091] The pressure conduction coefficient may be a conduction coefficient of the external pressure in the charging cable, and may reflect a conduction trend of the external pressure in the charging cable. The pressure conduction coefficient may be obtained by performing an external pressure test on the charging cable.

[0092] Young's modulus of a metal conductor is a physical constant of the metal conductor, which is related to the specific material of the metal conductor and can reflect the stiffness and elasticity of the metal conductor.

[0093] Specifically, since there are several metal conductors distributed in the insulation layer of the charging cable, when the charging cable is compressed, the metal conductor closest to the pressure position has the largest deformation, and the pressure transmitted from the metal conductor position to the wire core is also the largest, and the corresponding resistance change is also the largest. Therefore, the resistance change data with the largest difference from the initial resistance value is determined as the current resistance value and substituted into formula (1) to make the calculated wire core pressure value more representative.

[0094] Since the resistance of a metal conductor changes when it is under stress, the It expresses the change in resistance of a metal conductor when it is subjected to force.

[0095] The elastic properties of metal conductors are reflected by Young's modulus. By introducing Young's modulus, the deformation ability of metal conductors under stress can be reflected.

[0096] In formula (1) , which represents the change in cross-sectional area of ​​the metal conductor under stress. Further use of better expressions can reflect the relationship between the change in cross-sectional area and the overall stress distribution of the charging cable.

[0097] Introducing the pressure conduction coefficient into formula (1) can be used as a correction factor for the attenuation of external pressure inside the charging cable, thereby improving the accuracy of the core pressure value.

[0098] By increasing the initial diameter of the metal wire Introducing into formula (1) can reflect the influence of the geometric dimensions of the metal conductor on the pressure value of the wire core.

[0099] Through the solution provided in this embodiment, the influence of the initial cross-sectional area, initial diameter, initial resistance value, resistivity, wire length and current resistance value of the metal wire on the pressure value of the wire core is comprehensively considered, and the design formula is used to accurately calculate the pressure value of the wire core to quantify the pressure condition of the wire core, thereby providing important and accurate data basis for judging whether the external pressure on the current charging cable affects the normal operation of the wire core.

[0100] In some embodiments, at least one camera is controlled to identify and record the position of the parking space markings of the matching parking space for the electric vehicle charging pile; at least one camera is controlled to identify the position of the charging cable of the electric vehicle charging pile; the parking space marking position and the charging cable position are analyzed to determine whether there is an intersection between the parking space markings and the charging cable; if there is an intersection, at least one camera is controlled to identify whether the charging gun position is located in the current matching parking space; if the charging gun position is located in the current matching parking space, the cable position abnormality is regarded as an interference factor.

[0101] The parking space marking position may be the specific position of the warning marking used to demarcate the parking space that is matched with the current electric vehicle charging pile.

[0102] The charging cable position may be the current real-time position of the charging cable.

[0103] The charging gun position may be the real-time position of the current charging gun.

[0104] In the specific implementation method, the parking space marking position, charging cable position, intersection identification and charging gun position can all be obtained by tracking and identifying the corresponding targets in the camera information captured by the camera through target tracking algorithms in computer vision technology, such as Kalman filters, mean shift and multi-core correlation filters.

[0105] Specifically, when the user is moving the charging gun to drive the charging cable, the position of the charging cable may intersect with the markings of the parking space, that is, part of the charging cable is located in other parking spaces. This situation may easily cause subsequent vehicles to enter the parking space for charging and crush part of the working charging cables in the parking space, causing damage to the charging cables. During the user's charging operation, the real-time position of the charging cable is monitored throughout the process through the camera. When the position of the charging cable intersects with the parking space markings, it is further determined whether the charging gun is located in the current parking space. If it is, it means that the user is ready to charge at this time, but part of the charging cable is located in other parking spaces. If the electric vehicle is charged at this time, the risk of the cable being crushed during subsequent charging will increase significantly. Therefore, the abnormal cable position is used as an interference factor.

[0106] In other embodiments, when the interference factor is an abnormal cable position, a corresponding prompt message is output to prompt the user to move some cables located in other parking spaces to the current parking space before leaving to ensure the safety of the subsequent charging process, otherwise power will not be supplied.

[0107] Through the solution provided by this embodiment, when the user is performing a charging operation, at least one camera is used to respectively identify the position of the parking space marking, the charging cable and the charging gun, and then determine whether the parking space marking intersects the charging cable based on the position of the parking space marking and the charging cable, and then determine whether the current user is in a state of preparing to charge based on the position of the charging gun, thereby preventing the situation where part of the charging cable is located in other parking spaces and is crushed by other vehicles during the charging process, further extending the service life of the charging cable and further improving the safety of the charging process.

[0108] In some embodiments, if the charging gun is not located in the current supporting parking space, the parking space occupied by the current vehicle is identified through at least one camera; based on the parking space occupied by the current vehicle, the supporting charging pile of the parking space occupied by the current vehicle is determined; the status information of the supporting charging pile is obtained, and if the status information is available, the corresponding prompt information is output; if the status information is unavailable, at least one camera is used to identify whether there is a vehicle in the current charging pile supporting parking space; if there is a vehicle in the current charging pile supporting parking space, the license plate information of the vehicle in the current charging pile supporting parking space is identified through at least one camera, and the reservation status of the vehicle in the current charging pile supporting parking space is determined based on the license plate information; if the reservation status is reserved, the unreasonable occupation of the charging pile is regarded as an interference factor.

[0109] The status information may be information used to express whether the current charging pile is available, including but not limited to an available state and an unavailable state.

[0110] The reservation status may be information used to express whether the current vehicle has reserved charging, including but not limited to reserved and not reserved.

[0111] Specifically, in the process of users using electric vehicle charging piles to charge their electric vehicles, there is a special situation, that is, the user does not use the charging gun on the charging pile in the current parking space to charge, but uses the charging gun on the charging pile adjacent to it to charge. The reasons for this phenomenon can be mainly divided into two aspects. On the one hand, the charging pile in the current parking space is damaged and cannot be used, and the user can only use the adjacent charging pile. On the other hand, the charging port of the user's vehicle is close to the adjacent charging pile. In order to facilitate the plugging and unplugging of the charging gun, the adjacent charging pile is used. The former measure can be understood when there is no vehicle to be charged in the adjacent parking space, but the latter measure is obviously unreasonable, which will cause unreasonable occupation of the charging pile and cause inconvenience to users who need to charge later.

[0112] According to the above special circumstances, when the charging gun is not located in the current supporting parking space, it means that the current charging gun has been moved to an adjacent parking space. The camera is used to identify the parking space where the current charging gun is located, and the available status of the supporting charging pile of the parking space where the current charging gun is located is obtained through communication between chargers. If it is available, it means that the user is unreasonably occupying the charging pile. At this time, the corresponding prompt information is output to prompt the user to use the charging pile supporting the current parking space for charging, and the current charging gun is not powered on to prevent the user from continuously occupying the current charging gun. If it is not available, it means that the supporting charging pile of the parking space where the user's vehicle is located is damaged. At this time, the camera is used to identify whether there is a vehicle in the current parking space. If so, the license plate information is used to query whether the user corresponding to the current vehicle has made an appointment for charging. If so, it is determined that the current charging pile is unreasonably occupied, and the unreasonable occupation of the charging pile is regarded as an interference factor.

[0113] If no reservation has been made, it means that the current charging pile is not in use. If the charging pile supporting the parking space where the current user's vehicle is located is damaged, the current user can be allowed to use the current charging pile for charging.

[0114] In some other embodiments, when the interference factor is unreasonable occupation of a charging pile, a corresponding prompt message is output to prompt the user to use a charging pile matching the current parking space for charging, and the current charging gun is not powered on.

[0115] Through the solution provided in this embodiment, the location of the charging gun, the available status of the charging pile and the vehicle reservation status are comprehensively considered to judge whether the user has unreasonably occupied the charging pile, thereby preventing some users from causing inconvenience to subsequent users waiting to be charged for their own convenience, reducing disputes among users due to the occupation of charging piles, and improving user experience.

[0116] In some embodiments, when a vehicle enters a supporting parking space, at least one camera is used to identify the owner's away status and obtain the charging gun status; if the owner's away status is left and the charging gun status is disconnected, a reservation reminder message is sent to the owner's terminal based on the license plate information, and a reservation confirmation operation is obtained; the reservation confirmation operation is analyzed, and if the reservation confirmation operation is a positive operation, the reservation status is determined to be reserved; if the reservation confirmation operation is a negative operation, the reservation status is determined to be not reserved.

[0117] The owner's leaving status may be information used to express whether the owner has left the vehicle, including but not limited to a left status and a not left status.

[0118] The reservation reminder information may be relevant reminder information for reminding the user whether to make a reservation for charging; The terminal used by the car owner can be a mobile smart device, such as a smart phone.

[0119] The reservation confirmation operation may be a corresponding operation performed by the user using the mobile smart device to express whether to make a reservation after receiving the reservation reminder information, including but not limited to affirmative operation and negative operation.

[0120] Specifically, when the owner parks the electric vehicle in a parking space equipped with a charging pile for electric vehicles, it is possible that the owner leaves the vehicle without charging the electric vehicle. The reason for this may be that the owner forgot to perform the charging operation, or the owner may need to deal with some things temporarily and then perform the charging operation after the processing is completed. In view of the above situation, in order to avoid the charging pile of the current parking space being occupied when the owner is away, the reservation reminder information is sent to the mobile smart device used by the owner according to the license plate information, so as to prompt the owner to make a charging reservation. If the owner makes an affirmative operation, it means that the current vehicle has a charging requirement, and the reservation status of the current vehicle is updated to reserved, so as to prevent other vehicles from occupying the charging pile of the current parking space during the period when the owner is away.

[0121] In some other embodiments, after the car owner makes an affirmative operation, the car owner's reservation time needs to be limited to avoid the vehicle simply occupying the parking space without charging. If the car owner still does not charge the vehicle after the reservation time arrives, the reservation status of the current vehicle is updated to unreserved, so that when other charging piles fail, other users can use the current charging pile for charging.

[0122] Through the solution provided in this embodiment, when the car owner leaves without performing any charging operation, in order to prevent the charging pile from being occupied by other users when the current vehicle needs to charge, reservation reminder information is sent to the terminal device used by the car owner based on the vehicle license plate information, so that the car owner can make an online charging reservation, further improving the user experience.

[0123] In some embodiments, when the user completes the charging process and unplugs the charging gun, a charging gun placement prompt message is output; within a preset charging gun placement monitoring time, at least one photoelectric sensor is used to determine whether the charging gun is located in the charging gun placement slot; if the charging gun is not located in the charging gun placement slot within the preset charging gun placement monitoring time, the user is charged for abnormal operation, the deduction prompt message is determined, and the deduction prompt message is sent to the user's terminal.

[0124] The charging gun placement prompt information may be prompt information for prompting the user to place the charging gun in the charging gun placement slot on the charging pile.

[0125] The preset charging gun placement monitoring time can be the time that the photoelectric sensor monitors the placement status of the charging gun after the user pulls out the charging gun. The preset charging gun placement monitoring time can be set to 10 minutes, and can also be adjusted according to actual conditions. This application does not make specific limitations.

[0126] Specifically, some users forget to put the charging gun back into the charging gun slot of the charging pile after using it. After the user pulls out the charging gun, the charging gun placement prompt information is output to remind the user to put the charging gun back into the charging gun slot in time. If the user still does not put the charging gun back into the charging gun slot after receiving the charging gun placement prompt information, the photoelectric sensor will continuously monitor whether the charging gun is put back into the charging gun slot within the preset charging gun placement monitoring time. If the charging gun is still not in the charging gun slot within the preset charging gun placement monitoring time, the user will be charged for abnormal operation, and the corresponding deduction prompt information will be sent to the user's terminal to avoid damage to the charging gun due to the charging gun being outside the charging gun slot for a long time.

[0127] It should be noted that before users perform charging operations, the relevant charging terms should be displayed to users in detail. Only after users agree to the corresponding terms can they use the charging pile for charging.

[0128] Through the solution provided by this embodiment, when the user forgets to put the charging gun back into the charging gun placement slot, the charging gun placement prompt information will prompt the user to perform the placement operation. If the user deliberately does not put the charging gun back into the charging gun placement slot, the user will be charged for the abnormal operation, and the corresponding deduction prompt information will be sent to the user's terminal to avoid damage to the charging gun due to the charging gun being outside the charging gun placement slot for a long time, further improving the service life of the charging gun and reducing the failure rate of the charging pile.

[0129] Figure 4 A schematic diagram of the structure of an automatic safety monitoring system for a charging pile provided in one embodiment of the present application is shown in FIG. Figure 4 As shown, the automatic safety monitoring system 400 for a charging pile in this embodiment includes:

[0130] The prompt module 401 is used to obtain a charging instruction provided by a user and prompt the user to perform a charging operation; The interference monitoring module 402 is used to control the electric vehicle charging pile to monitor interference factors, and determine whether there are interference factors according to the monitoring results; The operation monitoring module 403 is used to output corresponding interference prompt information if the interference factor exists, and control at least one camera to monitor and analyze the user operation to determine the operation analysis result; The control module 404 is used to determine whether the interference factor is eliminated according to the operation analysis result, and if eliminated, control the electric vehicle to charge the electric vehicle using the charging pile.

[0131] Optionally, the system 400 further includes a charging gun detection module 405, which is specifically used to: Before the user performs a charging operation, the photoelectric sensor is controlled to detect the placement state of the charging gun to determine whether the charging gun is located in the charging gun placement slot; If the charging gun is not located in the charging gun placement slot, output a warning prompt message; If the charging gun is located in the charging gun placement slot, controlling the at least one current sensor to detect the working state of the charging gun to determine whether the charging gun is in a normal state; If the charging gun is not in a normal state, the electric vehicle is controlled to lock the charging gun using a charging pile.

[0132] Optionally, the interference monitoring module 402 is specifically configured to: Controlling the vibration sensor to obtain vibration signals of the plurality of metal wires and determine vibration data; Analyzing the vibration data to extract vibration characteristic information; The vibration characteristic information is compared with a preset vibration characteristic range. If the vibration characteristic information is outside the preset vibration characteristic range, cable wear is regarded as the interference factor.

[0133] Optionally, the interference monitoring module 402 is specifically configured to: Controlling the resistance sensor to obtain the resistance values ​​of the plurality of metal wires and determining a plurality of resistance change data; Determining the wire core pressure value according to the plurality of resistance change data and the initial data of the plurality of metal wires; The core pressure value is compared with a preset core pressure threshold. If the core pressure value is greater than the preset core pressure threshold, the cable pressure is used as the interference factor.

[0134] Optionally, the interference monitoring module 402 is specifically configured to: Comparing the plurality of resistance change data with the initial resistance value respectively, and determining the resistance change data having the largest difference with the initial resistance value as the current resistance value; The core pressure value is determined according to the initial cross-sectional area, the initial diameter, the initial resistance value, the resistivity, the wire length and the current resistance value, referring to the following formula: ; in, is the core pressure value, is the pressure transmission coefficient, is the initial cross-sectional area, is the resistivity, is the wire length, is the current resistance value, is the Young's modulus of the metal wire, is the initial diameter.

[0135] Optionally, the interference monitoring module 402 is specifically configured to: Controlling the at least one camera to identify and record the parking space marking position of the supporting parking space of the electric vehicle charging pile; Controlling the at least one camera to identify the position of the charging cable of the charging pile for the electric vehicle; Analyze the parking space marking position and the charging cable position to determine whether there is an intersection between the parking space marking and the charging cable; If the intersection situation exists, control the at least one camera to identify whether the charging gun is located in the current matching parking space; If the charging gun is located in the current supporting parking space, the abnormal cable position is regarded as the interference factor.

[0136] Optionally, the system 400 further includes an occupancy detection module 406, which is specifically configured to: If the charging gun is not located in the current matching parking space, identifying the parking space currently occupied by the vehicle through the at least one camera; Determine the matching charging pile for the parking space currently occupied by the vehicle according to the parking space currently occupied by the vehicle; Obtaining the status information of the matching charging pile, and if the status information is in an available state, outputting corresponding prompt information; If the status information is in an unavailable state, identifying whether there is a vehicle in the current parking space supporting the charging pile through the at least one camera; If there is a vehicle in the current charging pile supporting parking space, the at least one camera is used to identify the license plate information of the vehicle in the current charging pile supporting parking space, and the reservation status of the vehicle in the current charging pile supporting parking space is determined according to the license plate information; If the reservation status is reserved, unreasonable occupation of the charging pile will be regarded as the interference factor.

[0137] Optionally, the occupancy detection module 406 is specifically configured to: When the vehicle enters the supporting parking space, the at least one camera is used to identify the owner's leaving status and obtain the charging gun status; If the owner's departure status is the departed status and the charging gun status is the unconnected status, a reservation reminder message is sent to the owner's terminal according to the license plate information, and a reservation confirmation operation is obtained; Analyze the reservation confirmation operation, and if the reservation confirmation operation is a positive operation, determine the reservation status as reserved; If the reservation confirmation operation is a negative operation, the reservation status is determined to be not reserved.

[0138] Optionally, the system 400 further includes an exception handling module 407, which is specifically used to: When the user completes the charging process and pulls out the charging gun, outputting a charging gun placement prompt message; Within a preset charging gun placement monitoring time, determining whether the charging gun is located in the charging gun placement slot by means of the at least one photoelectric sensor; If the charging gun is not located in the charging gun placement slot within the preset charging gun placement monitoring time, the user is charged for abnormal operation, and deduction prompt information is determined and sent to the user terminal.

[0139] The system of this embodiment can be used to execute the method of any of the above embodiments. The implementation principles and technical effects are similar and will not be described in detail here.

Claims

1. An automated safety monitoring method for a charging pile, characterized in that: Applied to a charging pile for an electric vehicle, the charging pile for the electric vehicle comprises at least one camera, and the method comprises: Obtaining a charging instruction provided by a user, and prompting the user to perform a charging operation; Controlling the electric vehicle charging pile to monitor interference factors, and judging whether there are interference factors according to the monitoring results; If the interference factor exists, output corresponding interference prompt information, and control the at least one camera to monitor and analyze the user operation to determine the operation analysis result; According to the operation analysis result, it is determined whether the interference factor is eliminated. If it is eliminated, the electric vehicle is controlled to charge the electric vehicle using a charging pile.

2. The method according to claim 1, characterized in that The electric vehicle charging pile further comprises at least one photoelectric sensor and at least one current sensor, and the at least one photoelectric sensor and the at least one current sensor are both arranged in a charging gun placement slot of the electric vehicle charging pile, and the method further comprises: Before the user performs a charging operation, the photoelectric sensor is controlled to detect the placement state of the charging gun to determine whether the charging gun is located in the charging gun placement slot; If the charging gun is not located in the charging gun placement slot, output a warning prompt message; If the charging gun is located in the charging gun placement slot, controlling the at least one current sensor to detect the working state of the charging gun to determine whether the charging gun is in a normal state; If the charging gun is not in a normal state, the electric vehicle is controlled to lock the charging gun using a charging pile.

3. The method according to claim 1, characterized in that The electric vehicle charging pile further comprises at least one vibration sensor, a plurality of metal wires are arranged in the insulation layer of the charging cable of the electric vehicle charging pile, and the plurality of metal wires are connected to the at least one vibration sensor, and the controlling the electric vehicle charging pile to monitor interference factors and judging whether the interference factors exist according to the monitoring results include: Controlling the vibration sensor to obtain vibration signals of the plurality of metal wires and determine vibration data; Analyzing the vibration data to extract vibration characteristic information; The vibration characteristic information is compared with a preset vibration characteristic range. If the vibration characteristic information is outside the preset vibration characteristic range, cable wear is regarded as the interference factor.

4. The method according to claim 3, characterized in that The electric vehicle charging pile further comprises at least one resistance sensor, the plurality of metal wires are further connected to the resistance sensor, and the controlling the electric vehicle charging pile to monitor interference factors and judging whether the interference factors exist according to the monitoring results include: Controlling the resistance sensor to obtain the resistance values ​​of the plurality of metal wires and determining a plurality of resistance change data; Determining the wire core pressure value according to the plurality of resistance change data and the initial data of the plurality of metal wires; The core pressure value is compared with a preset core pressure threshold. If the core pressure value is greater than the preset core pressure threshold, the cable pressure is used as the interference factor.

5. The method according to claim 4, characterized in that The initial data includes but is not limited to the initial cross-sectional area, initial diameter, initial resistance value, resistivity and wire length, and the core pressure value is determined according to the resistance change data and the initial data of the plurality of metal wires, including: Comparing the plurality of resistance change data with the initial resistance value respectively, and determining the resistance change data having the largest difference with the initial resistance value as the current resistance value; The core pressure value is determined according to the initial cross-sectional area, the initial diameter, the initial resistance value, the resistivity, the wire length and the current resistance value, referring to the following formula: ; in, is the core pressure value, is the pressure transmission coefficient, is the initial cross-sectional area, is the resistivity, is the wire length, is the current resistance value, is the Young's modulus of the metal wire, is the initial diameter.

6. The method according to claim 1, characterized in that The controlling the electric vehicle charging pile to monitor interference factors and judging whether there are interference factors according to the monitoring results include: Controlling the at least one camera to identify and record the parking space marking position of the supporting parking space of the electric vehicle charging pile; Controlling the at least one camera to identify the position of the charging cable of the charging pile for the electric vehicle; Analyze the parking space marking position and the charging cable position to determine whether there is an intersection between the parking space marking and the charging cable; If the intersection situation exists, control the at least one camera to identify whether the charging gun is located in the current matching parking space; If the charging gun is located in the current supporting parking space, the abnormal cable position is regarded as the interference factor.

7. The method according to claim 6, characterized in that The method further comprises: If the charging gun is not located in the current matching parking space, identifying the parking space currently occupied by the vehicle through the at least one camera; Determine the matching charging pile for the parking space currently occupied by the vehicle according to the parking space currently occupied by the vehicle; Obtaining the status information of the matching charging pile, and if the status information is in an available state, outputting corresponding prompt information; If the status information is in an unavailable state, identifying whether there is a vehicle in the current parking space supporting the charging pile through the at least one camera; If there is a vehicle in the current charging pile supporting parking space, the at least one camera is used to identify the license plate information of the vehicle in the current charging pile supporting parking space, and the reservation status of the vehicle in the current charging pile supporting parking space is determined according to the license plate information; If the reservation status is reserved, unreasonable occupation of the charging pile will be regarded as the interference factor.

8. The method according to claim 7, characterized in that Determining the reservation status of the vehicle in the current charging pile supporting parking space according to the license plate information includes: When the vehicle enters the supporting parking space, the at least one camera is used to identify the owner's leaving status and obtain the charging gun status; If the owner's departure status is the departed status and the charging gun status is the unconnected status, a reservation reminder message is sent to the owner's terminal according to the license plate information, and a reservation confirmation operation is obtained; Analyze the reservation confirmation operation, and if the reservation confirmation operation is a positive operation, determine the reservation status as reserved; If the reservation confirmation operation is a negative operation, the reservation status is determined to be not reserved.

9. The method according to claim 2, characterized in that: The method further comprises: When the user completes the charging process and pulls out the charging gun, outputting a charging gun placement prompt message; Within a preset charging gun placement monitoring time, determining whether the charging gun is located in the charging gun placement slot by means of the at least one photoelectric sensor; If the charging gun is not located in the charging gun placement slot within the preset charging gun placement monitoring time, the user is charged for abnormal operation, and deduction prompt information is determined and sent to the user terminal.

10. An automatic safety monitoring system for a charging pile, characterized in that: include: A prompting module, used to obtain a charging instruction provided by a user and prompt the user to perform a charging operation; An interference monitoring module is used to control the electric vehicle charging pile to monitor interference factors, and determine whether there are interference factors based on the monitoring results; An operation monitoring module, used to output corresponding interference prompt information if the interference factor exists, and control at least one camera to monitor and analyze the user operation to determine the operation analysis result; The control module is used to determine whether the interference factor is eliminated according to the operation analysis result, and if eliminated, control the electric vehicle to charge the electric vehicle using a charging pile.

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