Charging pile billing system based on video and charging and discharging system synchronous monitoring

Abstract

The invention discloses a charging pile billing system based on video and charging and discharging system synchronous monitoring, and relates to the field of charging pile billing systems. The charging pile billing system based on video and charging and discharging system synchronous monitoring comprises an image acquisition module, a data acquisition module, an environment monitoring module, a vehicle owner terminal module, a background maintenance module and a central calculation module. According to the charging pile billing system based on video and charging and discharging system synchronous monitoring, dynamic billing is carried out by monitoring user operation behaviors (such as violent plugging and unplugging, cable excessive bending and the like) in real time in combination with the charging duration, the number of bad behaviors and the occupation duration, the fairness of the user is guaranteed, malicious behaviors are restrained through a punishment mechanism, and the charging pile billing efficiency is improved. The equipment loss is reduced and the service life is prolonged. A comprehensive risk value is calculated based on use intensity, aging degree, environmental exposure and bad behavior data, active maintenance is triggered, and sudden faults and operation and maintenance cost are reduced.

Description

Technical Field

[0001] The present invention relates to the field of charging pile billing systems, and in particular to a charging pile billing system based on synchronous monitoring of video and charging and discharging systems. Background Art

[0002] Existing charging station billing systems often rely on single-source billing based on charging volume or duration, lacking real-time monitoring of user behavior. This leaves equipment vulnerable to damage from rough handling or improper use. Furthermore, traditional maintenance methods rely on regular inspections and fail to dynamically assess actual equipment wear, which can lead to insufficient maintenance and waste of resources. Furthermore, when charging stations are exposed to harsh environments such as high temperature and high humidity for long periods of time, there is a lack of effective risk warning mechanisms. Existing systems can't yet integrate video surveillance, environmental data, and charging and discharging behavior analysis to achieve intelligent, full-process billing, maintenance, and equipment health management. Summary of the Invention

[0003] In order to make up for the deficiencies of the existing technical problems, the purpose of the present invention is to provide a charging pile billing system based on synchronous monitoring of video and charging and discharging systems, so as to solve the problems in the existing technology of lack of real-time monitoring of user behavior and lack of effective risk warning mechanism.

[0004] In order to solve the problems of the prior art, the technical solutions of the present invention are as follows: A charging pile billing system based on synchronous monitoring of video and charging and discharging systems includes an image acquisition module, a data acquisition module, an environmental monitoring module, a vehicle owner terminal module, a background maintenance module and a central computing module. The image acquisition module collects real-time images of the charging pile. The environmental monitoring module is used to detect environmental parameters at the charging pile location that affect the normal operation of the charging pile. The data acquisition module is used to access the charging pile to obtain the charging pile operating parameters. The central computing module calculates the comprehensive risk value of the charging pile by analyzing the real-time image, environmental parameters and charging pile operating parameters, and determines whether the charging pile has reached the maintenance time limit. The central computing module also calculates the final charging fee for the user by analyzing the real-time image and charging pile operating parameters.

[0005] Optionally, the central computing module analyzes real-time images to determine the user's bad behavior during the charging process and the length of time the user has occupied the seat after charging is completed.

[0006] Optionally, the bad behavior includes at least violently plugging and unplugging the charging gun head, excessive bending of the charging cable, gravity impact of the charging gun head, and impact on the charging pile body.

[0007] Optionally, the environmental parameters affecting the operation of the charging pile include at least temperature, humidity and salt spray.

[0008] Optionally, the charging pile operating parameters include at least the number of charging times, charging time, repair and maintenance records, and charging pile deployment date.

[0009] Optionally, the steps for calculating the comprehensive risk value are as follows: Step 1: Obtain the number of times the charging pile has been charged and the charging duration since the last maintenance or repair, and calculate the usage intensity coefficient of the charging pile; Step 2: Obtain the cumulative operating days and cumulative charging capacity of the charging pile since its deployment, and calculate the aging coefficient of the charging pile; Step 3: Calculate the comprehensive risk value. The calculation formula is as follows: ; Among them, Risk represents the calculation of comprehensive risk value, α, β, γ, and δ are weight coefficients, and α+β+γ+δ=1, N d Indicates the total number of bad behaviors the charging pile has been subjected to since the last maintenance or repair, T c Indicates the total number of hours the charging pile has been exposed to hazardous environments since the last maintenance or repair.

[0010] Optionally, the weight coefficient is adjusted according to the type of charging pile.

[0011] Optionally, the harmful environment includes at least an environment with a temperature greater than 40° C. and an environment with a humidity greater than 80%, or an environment where the two are superimposed.

[0012] Optionally, if the comprehensive risk value ≥ threshold θ, a maintenance work order for the next day is generated and sent to the background maintenance module, and the charging pile is marked as "pending maintenance" and the user is stopped from making further reservations. If the comprehensive risk value < threshold θ, monitoring continues.

[0013] Optionally, when the comprehensive risk value reaches ≥θ, the central calculation module generates a maintenance work order for the next day and calculates the charging cable damage rate D 线 And the damage rate of charging gun head D 枪 , and in D 线 When the damage rate of the charging cable exceeds the limit of XX, a charging cable replacement work order is generated. 枪 When the damage rate of the charging gun head is greater than or equal to the limit value XQ, a charging gun head replacement work order is generated and sent to the background maintenance module.

[0014] Compared with the prior art, the advantages of the present invention are as follows: 1. The present invention monitors user operating behaviors in real time (such as violent plugging and unplugging, excessive bending of cables, etc.), and conducts comprehensive billing based on charging time, number of bad behaviors and occupancy time. This not only ensures fairness for users, but also curbs malicious occupation or destruction through a penalty mechanism, effectively reducing equipment loss caused by improper use, and extending the service life of charging piles and accessories. The comprehensive risk value is calculated based on usage intensity, aging coefficient, environmental exposure and bad behavior data, realizing proactive maintenance, reducing sudden failures, and lowering operation and maintenance costs.

[0015] 2. The present invention ensures equipment reliability under different environmental conditions by dynamically adjusting the maintenance threshold according to the season and usage duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the system of the present invention.

[0017] Figure 2 It is a schematic diagram of the working steps of the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figure 1 and Figure 2 This embodiment provides a charging pile billing system based on video and charging and discharging system synchronous monitoring, including an image acquisition module, a data acquisition module, an environmental monitoring module, a vehicle owner terminal module, a background maintenance module, and a central computing module. The specific working steps are as follows: A1. The image acquisition module collects real-time images of charging piles in the charging station. The central computing module analyzes the real-time images and collects bad behaviors in the real-time images.

[0020] The image acquisition module is specifically a wide-angle camera with a 2K resolution and a frame rate of 30fps. The installation angle covers the charging pile gun head, the user operation area and the rear of the vehicle (to ensure that the license plate can be recognized).

[0021] Undesirable behaviors are preset based on actual conditions and are set as actions that affect the service life of the charging pile. Undesirable behaviors can be set to include: violent plugging and unplugging of the charging gun head, excessive bending of the charging cable, gravity impact of the charging gun head, and impact on the charging pile body.

[0022] Refer to Table 1 below for the criteria and implementation techniques for determining bad behavior: Table 1: Definition of criteria for determining bad behavior Behavior Type Judgment criteria Technical Implementation Violently plug and unplug the charging pile gun head Insertion and extraction speed>1.2m / s (optical flow method to calculate gun displacement) OpenCV Farneback algorithm + Kalman filter smoothing The charging cable is bent excessively Cable bending angle > 90° and lasting > 5 seconds (based on HRNet key point detection) 17-point cable skeleton model + angle timing analysis Charging gun head gravity impact Gun tip acceleration > 3g (collision intensity estimated by image sequence) Inter-frame difference method combined with IMU data fusion The main body of the charging pile is hit Charging pile shell deformation by external force> 2mm (binocular vision 3D reconstruction) Stereolabs ZED 2i depth camera + point cloud registration analysis The central computing module uses existing mature technologies to complete the identification of bad behaviors in real-time images, so we will not elaborate on how these existing mature technologies specifically achieve the identification of bad behaviors.

[0023] A2. After the user completes charging and drives out of the parking space, the central calculation module calculates the user's final charging amount using the following formula: ; Among them, Taf represents the final charge amount, Q is the duration of the user's charging, DA is the unit charging price, CE is the number of bad behaviors of the user during this charging process, CS is the penalty amount for bad behavior, H is the length of time the user occupies the seat after the end of this charging, and FS is the penalty amount per unit occupancy time.

[0024] Q is obtained by the data acquisition module connecting to the PLC controller of the charging pile. H and CE are obtained by the central calculation module through analyzing the image acquisition module. During the calculation, DA, CS and FS are calculated using preset values.

[0025] A3. The central calculation module calculates whether the charging pile has reached the maintenance time limit at the set time, which specifically includes the following steps: A31. Calculate the usage intensity coefficient of the charging pile since the last maintenance or repair. The calculation formula is as follows: ;

[0026] Among them, S q Indicates the use intensity coefficient, F a Indicates the number of times the charging pile has been charged since the last maintenance or repair, Z z Indicates the charging time of the charging pile since the last maintenance or repair.

[0027] A32. Calculate the aging coefficient of the charging pile since the last maintenance or repair. The calculation formula is as follows: ; Where A(t) represents the aging coefficient, YR represents the cumulative number of operating days of the charging pile since its deployment, and Q z Indicates the cumulative charging capacity of the charging pile since its deployment date; A33. Calculate the comprehensive risk value using the following formula: ; Among them, Risk represents the calculation of comprehensive risk value, α, β, γ, and δ are weight coefficients, and α+β+γ+δ=1, N d Indicates the total number of bad behaviors the charging pile has been subjected to since the last maintenance or repair, T cIndicates the total number of hours the charging pile has been exposed to harmful environments such as high temperature (>40°C) and high humidity (humidity >80%) since the last maintenance or repair.

[0028] Where Risk represents the calculated comprehensive risk value, α, β, γ, and δ are weight coefficients, and α+β+γ+δ=1. Nd represents the total number of adverse behaviors the charging pile has been subjected to since the last maintenance or repair. Tc represents the total number of hours the charging pile has been exposed to harmful environments such as high temperature (>40°C) and high humidity (humidity>80%) since the last maintenance or repair.

[0029] N d The number of charging times, charging time, cumulative operating days of the charging pile, cumulative charging amount of the charging pile, and maintenance and repair records of the charging pile are all obtained by connecting the central computing module to the charging pile PLC controller. The maintenance and repair records of the charging pile record the time and content of the maintenance or repair of the charging pile.

[0030] The weight coefficient adopts preset data. Please refer to Table 2 below for specific preset values ​​based on the type of charging pile: Table 2: Weight coefficient reference table Charging station type α β γ δ Fast charging 0.4 0.3 0.2 0.1 slow charge 0.4 0.4 0.1 0.1 The specific parameter settings of the weight coefficients are obtained through repeated test data verification.

[0031] The central calculation module calculates the comprehensive risk value during the preset time period every day and compares it with the threshold θ. If the comprehensive risk value ≥ θ, a maintenance work order for the next day is generated and sent to the background maintenance module. The charging pile is marked as "pending maintenance" and the user is prohibited from making further reservations. If the comprehensive risk value is < θ, monitoring continues.

[0032] The threshold θ is preset by time, season, and type, as shown in Table 3: Table 3: Reference table for threshold θ setting

[0033] In the table, spring, summer, autumn, and winter correspond to March to May, June to August, September to November, and December to February of the following year, respectively. The threshold θ is selected based on the current time and the type of charging pile being calculated. The specific parameter setting of the threshold θ is obtained through repeated test data verification.

[0034] Example description: For a fast charging station with a service life of 5 months, the calculation date is October 30, so the threshold θ=25 is selected: October 29: Comprehensive risk value = 23 (does not reach the threshold, continue to use).

[0035] October 30: 8 additional charging attempts (128 total), 20 hours (320 total). 2 additional violent plugging and unplugging attempts (7 total). 4 hours in high temperature (54 total).

[0036] Calculate the risk value: ; ; ; 32.8>threshold θ, a maintenance work order for the next day is generated and sent to the background maintenance module.

[0037] A4. When the comprehensive risk value reaches ≥θ, a maintenance work order is generated for the next day, and the charging cable damage rate and charging gun head damage rate are calculated separately. The calculation formula for the charging cable damage rate is as follows:

[0038] Among them, D 线 represents the damage rate of charging cables, n 弯 Indicates the total number of times the charging cable has been excessively bent in history, N 线 Limit represents the upper limit of the number of times the charging cable is excessively bent, t 弯 Indicates the total charging time of the charging cable in the history, T 线 Design charging cables for a long charging life.

[0039] The calculation formula for the charging gun head damage rate is as follows: ; Among them, D 枪 Indicates the damage rate of the charging gun head, n 撞 Indicates the total number of times the charging gun head has been violently plugged, unplugged, and hit in the history, N 枪 The limit indicates the maximum number of times the charging gun head is designed to be violently plugged in and out and hit. 枪 Indicates the total charging time of the charging gun head in the historical records, T 枪 Indicates the designed charging service life of the charging gun head.

[0040] If the charging gun head and charging cable are replaced, the total number of excessive bending, violent plugging and impact will be counted from the date of replacement. If the charging gun head and charging cable are the original ones, the total number of excessive bending, violent plugging and impact will be counted from the date of deployment of the charging pile.

[0041] D 线 、D枪 Compare with the limit value XX of the damage rate of the charging cable and the limit value XQ of the damage rate of the charging gun head respectively. 线 ≥XX, it means the charging cable needs to be replaced. 枪 When ≥XQ, it means that the charging gun head needs to be replaced, and a device replacement work order is generated and sent to the background maintenance module at the same time as the next day's maintenance work order.

[0042] In summary, this invention monitors user behavior (such as violent plugging and unplugging, excessive cable bending, etc.) in real time and dynamically charges based on charging duration, number of misbehaviors, and occupancy time. This ensures user fairness while also curbing malicious behavior through a penalty mechanism, reducing device wear and extending service life. A comprehensive risk value is calculated based on usage intensity, aging, environmental exposure, and misbehavior data, triggering proactive maintenance to reduce unexpected failures and operational costs.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A charging pile billing system based on video and charging and discharging system synchronous monitoring, characterized in that: It includes an image acquisition module, a data acquisition module, an environmental monitoring module, a vehicle owner terminal module, a background maintenance module and a central computing module. The image acquisition module is used to collect real-time images at the charging pile. The environmental monitoring module is used to monitor the environmental parameters at the charging pile location that affect the normal operation of the charging pile. The data acquisition module is used to access the charging pile to obtain the charging pile operating parameters. The central computing module calculates the comprehensive risk value of the charging pile by analyzing real-time images, environmental parameters and charging pile operating parameters, and determines whether the charging pile has reached the maintenance time limit. The central computing module also calculates the final charging charge for the user by analyzing real-time images and charging pile operating parameters.

2. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 1 is characterized in that: The central computing module analyzes real-time images to determine the user's bad behavior during the charging process and the length of time the user has occupied the seat after charging is completed.

3. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 2 is characterized in that: The bad behaviors at least include violent plugging and unplugging of the charging gun head, excessive bending of the charging cable, gravity impact of the charging gun head, and impact on the charging pile body.

4. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 3 is characterized in that: The environmental parameters that affect the operation of the charging pile include at least temperature, humidity and salt spray.

5. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 4 is characterized in that: The charging pile operating parameters include at least the number of charging times, charging time, repair and maintenance records, and charging pile deployment date.

6. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 5 is characterized in that: The steps for calculating the comprehensive risk value are as follows: Step 1: Obtain the number of times the charging pile has been charged and the charging duration since the last maintenance or repair, and calculate the usage intensity coefficient of the charging pile; Step 2: Obtain the cumulative operating days and cumulative charging capacity of the charging pile since its deployment, and calculate the aging coefficient of the charging pile; Step 3: Calculate the comprehensive risk value. The calculation formula is as follows: ； Among them, Risk represents the calculation of comprehensive risk value, α, β, γ, and δ are weight coefficients, and α+β+γ+δ=1, N d Indicates the total number of bad behaviors the charging pile has been subjected to since the last maintenance or repair, T c Indicates the total number of hours the charging pile has been exposed to hazardous environments since the last maintenance or repair.

7. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 6 is characterized in that: The weight coefficient is adjusted according to the type of charging pile.

8. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 7 is characterized in that: The harmful environment at least includes an environment with a temperature greater than 40° C. and an environment with a humidity greater than 80%, or an environment where the two are superimposed.

9. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 8 is characterized in that: If the comprehensive risk value is greater than or equal to the threshold value θ, a maintenance work order for the next day is generated and sent to the background maintenance module, and the charging pile is marked as "pending maintenance" and the user is stopped from making further reservations. If the comprehensive risk value is less than the threshold value θ, monitoring continues.

10. The charging pile billing system based on video and charging and discharging system synchronous monitoring according to claim 9 is characterized in that: When the comprehensive risk value reaches ≥θ, the central calculation module generates a maintenance work order for the next day and calculates the charging cable damage rate D 线 And the damage rate of charging gun head D 枪 , and in D 线 When the damage rate of the charging cable exceeds the limit of XX, a charging cable replacement work order is generated. 枪 When the damage rate of the charging gun head is greater than or equal to the limit value XQ, a charging gun head replacement work order is generated and sent to the background maintenance module.

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