Charging pile power distribution cabinet load balance control method and system

Abstract

The invention relates to a charging pile power distribution cabinet load balance control method and system, and relates to the technical field of charging pile power distribution cabinets, and the method comprises the steps: collecting a charging specification and the real-time charging power of a charging pile; checking the real-time charging power through a preset checking method; according to the change condition of the real-time charging power before and after updating, calling reference power from the charging specification; the real-time charging power is compared with the reference power, and an adjustable charging pile is taken out from the charging specifications; calculating the difference between the real-time charging power and the reference power as adjusting power; the adjustable charging power is obtained through the adjustable charging pile and the real-time charging power; and comparing the adjustable charging power with the adjusting power to select the power of the adjustable charging pile to adjust the power to increase or reduce the real-time charging power according to the adjusting power. The method has the effect of improving the charging efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging pile power distribution cabinet, in particular to a charging pile power distribution cabinet load balancing control method and system. BACKGROUND

[0002] The charging pile power distribution cabinet is a special electrical equipment that provides power distribution, control, protection and management functions for multiple charging piles, and is a core component in the power supply system.

[0003] When the charging pile charges the electric vehicle, the charging pile power distribution cabinet distributes the external input high-voltage or low-voltage power supply according to the pre-set power demand of each charging pile. When multiple charging piles are simultaneously charged at high power, the current inside the charging pile is greater than the threshold, and the charging pile automatically stops.

[0004] When multiple charging piles are simultaneously charged at high power, it is easy to cause the power distribution cabinet to overload and protect, causing the charging pile to automatically stop, the user to frequently replace the equipment or the charging pile to be unable to charge, thereby reducing the charging efficiency. SUMMARY

[0005] In order to improve the charging efficiency, the present application provides a charging pile power distribution cabinet load balancing control method and system.

[0006] In the first aspect, the present application provides a charging pile power distribution cabinet load balancing control method and system, which adopts the following technical scheme: A charging pile power distribution cabinet load balancing control method, comprising: S10: collecting the real-time charging power and the charging specifications of the charging pile; S11: verifying the real-time charging power by a pre-set verification method; S12: retrieving the reference power from the charging specifications according to the change of the real-time charging power before and after updating; S13: comparing the real-time charging power and the reference power to retrieve the adjustable charging pile from the charging specifications; S14: calculating the difference between the real-time charging power and the reference power as the adjustment power; S15: obtaining the adjustable charging power by the adjustable charging pile and the real-time charging power; S16: comparing the adjustable charging power and the adjustment power to select to increase the power of the adjustable charging pile by the adjustment power or to reduce the real-time charging power by the adjustment power.

[0007] By adopting the technical scheme, the real-time charging power that has been inspected is analyzed by the inspection method, the reference power is called from the charging specification, the adjustable charging pile is called from the charging specification by comparing the real-time charging power with the reference power, the power of the adjustable charging pile is adjusted or the real-time charging power is reduced according to the comparison of the adjustable charging power and the adjustment power, so that the power of the charging pile can be automatically adjusted, the load balance of the charging pile power distribution cabinet is realized, the probability of overload protection action of the power distribution cabinet is reduced, and the charging efficiency is improved.

[0008] Optionally, the method further comprises: S20: collecting vehicle power information, a driving path and a vehicle position; S21: obtaining required driving power through the driving path; S22: comparing the vehicle power information with the required driving power to collect a charging station position; S23: determining a marked charging position based on a change of the vehicle position and the charging station position; S24: obtaining a marked charging pile by marking a charging pile of the marked charging position; S25: obtaining a target charging pile by preset driving habits and the marked charging pile; S26: collecting a vehicle type; S27: updating real-time charging power by the vehicle type and the target charging pile.

[0009] Optionally, the method for determining the preset driving habits comprises: S30: collecting historical charging positions and historical charging time periods corresponding to the vehicle type; S31: calling a path of the historical charging time period as a historical driving path from the driving path; S32: obtaining a path change point based on the historical driving path and the historical charging position; S33: collecting historical speed and historical operation information in the historical driving path; S34: obtaining change speed according to the historical speed and the path change point; S35: obtaining change operation information according to the path change point and the historical operation information; S36: obtaining driving habits by combining the change speed and the change operation information.

[0010] Optionally, the method for updating the real-time charging power comprises: S40: collecting target allowable power of the target charging pile; S41: taking reference power of the target charging pile as target reference power; S42: calling maximum charging power from the vehicle type; S43: Calculate the difference between the target reference power and the maximum charging power as the target deviation power; S44: Update the real-time charging power of the target charging station based on the comparison between the target deviation power and the target allowable power.

[0011] Optional testing methods include: S50: Calculate the difference between the real-time charging power and the preset benchmark test power as the power deviation value; S51: Select the output of preset abnormal information based on whether the power deviation value falls within the preset allowable range, or retrieve the grounding type from the charging specification. S52: Based on the consistency between the grounding type and the preset outdoor grounding type, retrieve the grounding location from the charging specifications and collect the outdoor environmental information of the grounding location. S53: Output preset prompts based on outdoor environmental information.

[0012] Optionally, methods before outputting the preset prompt message include: S60: Based on the consistency between outdoor environmental information and preset rainfall type, retrieve rainfall parameters from the outdoor environmental information. The rainfall parameters include rainfall amount and rainfall direction. S61: Extract the outer layer texture from the charging specifications; S62: Generate a grounding model by combining the outer layer texture with the charging specifications; S63: Combine grounding model, rainfall amount and rainfall direction to generate rainfall trajectory; S64: Collect pressure change values ​​and pressure change locations; S65: The location and extent of the cracks are determined by the pressure change value, the location of the pressure change, and the rainfall trajectory. S66: Output a prompt message based on the crack location and crack extent.

[0013] By adopting the above technical solution, the location and extent of cracks can be obtained by utilizing rainfall information from the outdoor environment. This allows for early detection of crack locations and timely alerts, enabling proactive handling of factors affecting the load balance of the charging pile distribution cabinet.

[0014] Optionally, methods for obtaining the location and extent of cracks include: S70: Use the rainfall trajectory to retrieve the baseline drip location, drip time, and baseline change value; S71: Obtain the deviation position based on the consistency between the reference drip position and the pressure change position; S72: Obtain the lateral distance of the crack by comparing the deviation location with the rainfall trajectory, and collect the deviation time point of the pressure change value at the deviation location; S73: The interval duration is obtained based on the deviation time point and the dripping time point; S74: Update the interval based on the preset dust inspection method; S75: The estimated crack volume is obtained based on the interval duration, pressure change value, and baseline change value; S76: Different deviation trajectories are obtained by comparing the deviation location with the rainfall trajectory; S77: Obtain the actual duration based on different deviation trajectories and wiring models; S78: The crack height distance is obtained by comparing the consistency and deviation trajectory between the actual duration and the interval duration. The crack location and crack range are obtained by combining the crack height distance, crack lateral distance and crack estimated volume.

[0015] By adopting the above technical solution, the location and extent of cracks can be obtained by analyzing the interval duration, pressure change value, reference change value, and actual duration, thereby further improving the accuracy of crack location and extent.

[0016] Optional dust inspection methods include: S80: Retrieve dust distribution parameters from outdoor environmental information; S81: Based on charging specifications and dust distribution parameters, the baseline blowing parameters are obtained; S82: Obtain the marked blowing period by combining outdoor environmental information with baseline blowing parameters; S83: The grounding aging level is determined based on the marked blowing time, outdoor environment information, and charging specifications; S84: Obtain the grounding adhesion force based on the degree of grounding aging; S85: Combine ground adhesion force with dust distribution parameters and outdoor environmental information to obtain the marking distribution parameters; S86: The removal duration is obtained by labeling the distribution parameters and rainfall trajectory; S87: Re-collect interval based on removal duration.

[0017] Optional, also includes: S90: Based on the consistency between outdoor environmental information and the preset rainfall type, the labeled distribution parameters are obtained through a preset verification method; S91: Impact force is obtained by marking distribution parameters and ground adhesion force; S92: Based on the impact force, the marked water output corresponding to different angles is obtained; S93: Compare the marked water output with the preset baseline water output to obtain the water output angle; S94: Based on the preset spray range, water outlet angle, and marked water volume, the water outlet position is obtained, and water is sprayed according to the water outlet angle, marked water volume, and water outlet position.

[0018] Secondly, this application provides a load balancing control system for a charging pile distribution cabinet, which adopts the following technical solution: A load balancing control system for a charging pile distribution cabinet includes: The acquisition module is used to acquire charging specifications and real-time charging power. The memory is used to store the program for the load balancing control method of the charging pile distribution cabinet; The processor is used to load and execute programs stored in memory.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. By analyzing the real-time charging power after inspection using testing methods, a reference power is retrieved from the charging specifications. Then, by comparing the real-time charging power with the reference power, adjustable charging piles are retrieved from the charging specifications. Based on the comparison between the adjustable charging power and the adjusted power, the power of the adjustable charging piles is adjusted or the real-time charging power is reduced. This enables automatic adjustment of the charging pile power, achieving load balance in the charging pile distribution cabinet, reducing the probability of overload protection activation in the distribution cabinet, and improving charging efficiency. 2. By utilizing rainfall data from outdoor environmental information to determine the location and extent of cracks, the location of cracks can be identified in advance and alerts can be issued, allowing for proactive measures to address factors affecting the load balance of the charging pile distribution cabinet. 3. By analyzing the interval duration, pressure change value, baseline change value, and actual duration, the location and extent of the crack can be determined, thereby further improving the accuracy of the crack location and extent. Attached Figure Description

[0020] Figure 1 This is a flowchart of a method for load balancing control of a charging pile distribution cabinet according to an embodiment of the present invention; Figure 2 This is a flowchart of the method before outputting the preset prompt information in an embodiment of the present invention; Figure 3 This is a flowchart of a method for obtaining the location and extent of a crack according to an embodiment of the present invention. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Reference Figure 1 This application discloses a load balancing control method for a charging pile distribution cabinet, comprising the following steps: S10: Collects charging specifications and real-time charging power of charging piles.

[0023] Charging specifications refer to the operating parameters and dimensions of the charging pile and distribution cabinet, which can be obtained in advance by the operator.

[0024] Real-time charging power refers to the power output of the charging pile in real time. The real-time charging power is obtained by retrieving the parameters of the charging pile through a preset power sensor.

[0025] S11: Verify the real-time charging power using a preset verification method.

[0026] The inspection method refers to the method used to check whether there are any abnormalities in the real-time charging power. In this embodiment, the inspection method is only applied to distribution cabinets and charging piles with exposed grounding wires outdoors.

[0027] S12: Based on the changes in real-time charging power before and after the update, retrieve the reference power from the charging specifications.

[0028] The reference power refers to the power that the charging pile can output, as preset by the user. By comparing the real-time charging power before and after the update, if there is no change in the real-time charging power before and after the update, it indicates that the insulation layer of the grounding wire exposed outdoors is not abnormal, and the reference power is retrieved from the charging specifications.

[0029] S13: Compare the real-time charging power with the reference power to retrieve the adjustable charging station from the charging specifications.

[0030] An adjustable charging pile refers to a charging pile that is connected to the same power distribution cabinet and can adjust its power. By comparing the real-time charging power with the reference power, the charging pile with the real-time charging power that is lower than the reference power is selected from all the charging piles in the same power distribution cabinet as the adjustable charging pile.

[0031] S14: Calculate the difference between the real-time charging power and the reference power as the adjustment power.

[0032] Adjusted power refers to the deviation between real-time charging power and reference power. The difference between real-time charging power and reference power is calculated as the adjusted power.

[0033] S15: Adjustable charging power is obtained through adjustable charging pile and real-time charging power.

[0034] Adjustable charging power refers to the power that an adjustable charging station can adjust. It is calculated by comparing the real-time charging power of the adjustable charging station with the base power.

[0035] S16: Compare adjustable charging power with adjusted power to select whether to increase the power of the adjustable charging station by adjusting power or decrease the real-time charging power by adjusting power.

[0036] By comparing the adjustable charging power and the adjusted power, if the adjustable charging power is greater than the adjusted power, it means that the adjustable charging pile can tolerate the adjustment of the adjusted power. In this case, the base power of the adjustable charging pile will be increased by the adjusted power.

[0037] If the adjustable charging power is less than the adjustment power, it means that the adjustable charging pile cannot allow the adjustment power to be changed. In this case, the real-time charging power is reduced by the adjustment power until the real-time charging power is the same as the reference power.

[0038] Also includes: S20: Collects vehicle battery information, driving route, and vehicle location.

[0039] Vehicle battery information refers to the amount of electricity currently stored in the vehicle's battery, which can be obtained from the vehicle's battery management system through the system.

[0040] The driving route refers to the planned route of the vehicle, which can be planned and retrieved in advance through the in-vehicle navigation system.

[0041] Vehicle location refers to the current geographical coordinates of the vehicle, which are obtained in real time via GPS.

[0042] S21: Obtain the required driving power based on the driving route.

[0043] Demandable driving energy refers to the electrical energy required for a vehicle to travel the remaining distance along the designated driving route. It is calculated by combining information such as the distance of the driving route, road conditions, and vehicle energy consumption parameters. The method for calculating demandable driving energy is common knowledge to those skilled in the art and will not be elaborated upon here.

[0044] S22: Compare vehicle battery information with required driving power to collect charging station locations.

[0045] Charging station location refers to the location where a vehicle can drive to a station that provides charging services. When the vehicle's battery level is less than the required driving range, the location of charging stations around the driving route is retrieved from map data as the charging station location.

[0046] S23: Determine the marked charging location based on changes in vehicle location and the location of charging stations.

[0047] Marking a charging location refers to selecting a specific location from the charging station locations that the vehicle can reach for charging. By calculating the path between the current vehicle location and the charging station location, the charging station location corresponding to the path where the power consumption is less than the vehicle's power information is designated as the marked charging location.

[0048] S24: Obtain the marked charging station from the marked charging location.

[0049] Marked charging stations are those that have marked charging locations.

[0050] S25: Find the target charging station by using preset driving habits and marked charging stations.

[0051] A target charging station is a charging station where a user is about to charge their vehicle. By analyzing driving habits, the location where the user is about to park and charge is determined, and the charging station that coincides with the location where the user is about to park and charge is defined as the target charging station.

[0052] S26: Collect vehicle type.

[0053] Vehicle type refers to the type of vehicle that needs to be charged. Vehicle type includes information such as the types of charging the vehicle supports, which can be obtained through a vehicle identification system or user input.

[0054] S27: Update real-time charging power based on vehicle type and target charging station.

[0055] By analyzing the vehicle type and the target charging station, the real-time charging power output of the target charging station can be adjusted to meet the vehicle's charging needs while satisfying the load balance of the power distribution cabinet.

[0056] Methods for determining preset driving habits: S30: Collect historical charging locations and historical charging periods corresponding to vehicle types.

[0057] Historical charging location refers to the location coordinates of the specific locations where a vehicle was charged in the past. The historical charging location corresponding to the vehicle type is retrieved from the historical charging records of the vehicle or charging station.

[0058] Historical charging periods refer to the time intervals during which vehicles were previously charged, obtained by extracting the timestamps from historical charging records.

[0059] S31: Retrieve the historical charging period route from the driving route as the historical driving route.

[0060] Historical driving routes refer to the routes that a vehicle actually travels during historical charging periods. These routes are retrieved from the historical charging period driving routes to form the historical driving routes.

[0061] S32: Obtain path change points based on historical driving routes and historical charging locations.

[0062] Path change points refer to locations in the historical driving path where the vehicle's driving direction, speed, route, or target changes significantly. By comparing the continuous coordinates of the historical driving path with the distance changes of the historical charging location, locations in the trajectory where the direction angle changes abruptly, the distance decreases sharply, or the speed changes are identified as path change points.

[0063] S33: Collect historical speed and operation information from historical driving routes.

[0064] Historical speed refers to the real-time speed of a vehicle at various locations along its historical driving path. The speed parameters of the historical driving path are retrieved from the speed sensors recorded by the onboard system and used as historical parameters.

[0065] Historical operation information refers to the driving operation information of the vehicle by the user in the historical driving path, such as acceleration, deceleration, braking and turning. The operation information in the historical driving path is retrieved from the operation log of the vehicle control system as historical operation information.

[0066] S34: Obtain the changing speed based on historical speed and path change points.

[0067] Change speed refers to the speed of a vehicle at a point where the path changes. It is obtained by retrieving the speed corresponding to the location of the path change point from historical speed data.

[0068] S35: Obtain change operation information based on path change points and historical operation information.

[0069] Change operation information refers to the historical operation information of the vehicle at path change points. The change operation information is obtained by retrieving the operation information corresponding to the location of the path change point from the historical operation information.

[0070] S36: Combine information on changing speed and changing operation to determine driving habits.

[0071] Driving habits are derived by correlating changes in speed with changes in operational information. For example, deceleration begins 1 km from the charging station, with the speed decreasing from 60 km / h to 30 km / h. The methods for analyzing driving habits are common knowledge to those skilled in the art and will not be elaborated upon here.

[0072] Methods for updating real-time charging power include: S40: Collect the target allowable power of the target charging pile.

[0073] The target allowable power refers to the maximum power that the target charging pile can safely boost under the current power distribution system load. The target charging pile's control system retrieves the maximum power that the target charging pile can safely operate under the current power distribution system load, and calculates the difference between the maximum power and the reference power as the target allowable power.

[0074] S41: Use the reference power of the target charging station as the target reference power.

[0075] The target reference power refers to the reference power of the target charging pile, which is used as the target reference power.

[0076] S42: Retrieve the maximum charging power from the vehicle type.

[0077] Maximum charging power refers to the highest charging power that a vehicle can accept, which is obtained by retrieving the maximum charging power from the vehicle type.

[0078] S43: Calculate the difference between the target reference power and the maximum charging power as the target deviation power.

[0079] Target deviation power refers to the deviation between the target reference power and the maximum charging power. The target deviation power is calculated by the difference between the target reference power and the maximum charging power.

[0080] S44: Update the real-time charging power of the target charging station based on the comparison between the target deviation power and the target allowable power.

[0081] By comparing the target deviation power with the target allowable power, if the target deviation power is greater than the target allowable power, it means that the target charging pile is not likely to meet the maximum charging power of the vehicle. In this case, the target reference power is increased by the target allowable power to obtain the new real-time charging power of the target charging pile.

[0082] If the target deviation power is less than the target allowable power, it means that the target charging pile can easily meet the maximum charging power of the vehicle. In this case, the target reference power is increased by the target deviation power to obtain the new real-time charging power of the target charging pile.

[0083] The testing methods include: S50: Calculate the difference between the real-time charging power and the preset benchmark test power as the power deviation value.

[0084] The benchmark test power is a power value set by technicians to check whether the charging pile has any abnormalities.

[0085] The power deviation value refers to the deviation between the real-time charging power and the reference test power. The power deviation value is calculated by the difference between the real-time charging power and the reference test power.

[0086] S51: Select the output of preset abnormal information based on whether the power deviation value falls within the preset allowable range, or retrieve the grounding type from the charging specifications.

[0087] The allowable range is a numerical interval set by technicians to determine whether the power deviation is within the normal fluctuation range. The anomaly information is a prompt message set by technicians to indicate abnormalities in the charging pile and distribution cabinet. By analyzing whether the power deviation value falls within the allowable range, if the power deviation value does not fall within the allowable range, it indicates an abnormality in the charging pile and distribution cabinet, and an anomaly message is output to the operator's terminal.

[0088] Grounding type refers to the type of grounding wire between the charging pile and the distribution cabinet. When the power deviation value falls within the allowable range, it indicates that there is no abnormality between the charging pile and the distribution cabinet. In this case, the grounding type can be retrieved from the charging specifications.

[0089] S52: Based on the consistency between the grounding type and the preset outdoor grounding type, retrieve the grounding location from the charging specifications and collect the outdoor environmental information of the grounding location.

[0090] Outdoor grounding type is the type of grounding wire installed for outdoor environments as defined by technicians.

[0091] Grounding location refers to the location where the grounding wire is installed. Outdoor environmental information refers to the environmental parameters around the grounding location. By analyzing the consistency between the grounding type and the outdoor grounding type, when the grounding type is consistent with the outdoor grounding type, it means that the grounding wire can be tested using the testing method. Then, the grounding location is retrieved from the charging specifications and collected in real time by environmental sensors (rain gauges, temperature and humidity sensors, and dust sensors, etc.) set at the grounding location.

[0092] S53: Output preset prompts based on outdoor environmental information.

[0093] The prompt message is set by technicians to indicate that the grounding wire needs maintenance. The prompt message is output to the operator's terminal by analyzing outdoor environmental information. In this embodiment, when the grounding wire malfunctions, grounding faults can cause the main protection to trip, abnormal grounding resistance can lead to voltage deviation, and charging pile protection trips can cause load loss, all of which indirectly affect the load balance of the charging pile distribution cabinet.

[0094] Reference Figure 2 The methods before outputting the preset prompt message include: S60: Based on the consistency between outdoor environmental information and preset rainfall type, retrieve rainfall parameters from the outdoor environmental information. The rainfall parameters include rainfall amount and rainfall direction.

[0095] Rainfall type is the environmental type of outdoor environment that occurs when rainfall is defined by technicians.

[0096] Rainfall parameters refer to the specific parameters of outdoor environmental rainfall. Rainfall amount refers to the depth of rainfall at the ground location per unit time, and rainfall direction refers to the direction in which rainwater falls. Rainfall parameters are retrieved from outdoor environmental information, and include rainfall amount and rainfall direction.

[0097] S61: Retrieves the outer texture from the charging specifications.

[0098] The outer texture refers to the texture structure on the surface of the grounding wire insulation layer, which is recorded by retrieving the insulation layer specifications of the grounding wire from the charging specifications.

[0099] S62: Generate a grounding model by combining the outer layer texture with the charging specifications.

[0100] A grounding model is a three-dimensional digital model constructed based on the specifications of the grounding wire, such as its outer texture and dimensions. The grounding model is generated by retrieving the grounding wire's dimensional specifications from the charging specifications and combining these specifications with the outer texture using modeling software. The method for generating the grounding model is common knowledge to those skilled in the art and will not be elaborated upon here.

[0101] S63: Combines grounding model, rainfall amount and rainfall direction to generate rainfall trajectory.

[0102] Rainfall trajectory refers to the simulated path of rainwater flowing on the surface of a grounding model. It is generated by simulating the flow of rainwater on the grounding model using rainfall amount and direction as input parameters, based on fluid dynamics principles. The method for generating rainfall trajectories is common knowledge to those skilled in the art and will not be elaborated upon here.

[0103] S64: Collect pressure change values ​​and pressure change locations.

[0104] The pressure change value refers to the force caused by water flowing downwards along the insulation layer of the grounding wire. This pressure change is measured by a pressure sensor circumferentially located on the outer wall of the grounding wire insulation layer, and the parameter value indicating the pressure change is used as the measurement. In this embodiment, the grounding wire is perpendicular to the ground.

[0105] The pressure change location refers to the sensor location where a pressure change value occurs. The pressure change location is determined by retrieving the sensor location where the pressure change value occurs.

[0106] S65: The location and extent of the cracks are determined by the pressure change value, the location of the pressure change, and the rainfall trajectory.

[0107] The location of the crack refers to the specific coordinates of the damage to the insulation layer of the grounding wire, and the range of the crack refers to the area within the insulation layer of the grounding wire where the crack is distributed. The location and range of the crack are determined by analyzing the pressure change values, the location of the pressure change, and the rainfall trajectory.

[0108] S66: Output a prompt message based on the crack location and crack extent.

[0109] By adding information about the location and extent of the crack to the prompt message and outputting it, the operator can easily repair the crack.

[0110] Reference Figure 3 Methods for obtaining the location and extent of cracks include: S70: Use rainfall trajectory to retrieve baseline drip location, drip time, and baseline change value.

[0111] The reference drop position refers to the position where rainwater normally drips onto the pressure sensor in the rainfall trajectory when there are no cracks in the grounding wire insulation layer. The reference drop position can be obtained by retrieving simulation data of the rainfall trajectory when there are no cracks in the grounding wire insulation layer.

[0112] The dripping time point refers to the expected time point at which rainwater flows to the reference dripping position according to the normal rainfall trajectory. It is obtained by extracting the time axis parameters of the rainfall trajectory when the grounding wire insulation layer has no cracks.

[0113] The reference change value refers to the pressure change caused by rainwater dripping to the reference dripping position when the grounding wire insulation layer is free of cracks. It is obtained from pressure sensor data under historical conditions when the grounding wire insulation layer is free of cracks.

[0114] S71: Obtain the deviation position based on the consistency between the reference drip position and the pressure change position.

[0115] Deviation position refers to the actual pressure detection coordinate when the pressure change position does not coincide with the reference drip position. By analyzing the consistency between the reference drip position and the pressure change position, when the reference drip position and the pressure change position are inconsistent, it indicates that there is a crack in the grounding wire insulation layer, which changes the flow trajectory of rainwater. Therefore, the pressure change position that is inconsistent with the reference drip position is defined as the deviation position.

[0116] S72: Obtain the lateral distance of the crack by comparing the deviation location with the rainfall trajectory, and collect the deviation time point of the pressure change value at the deviation location.

[0117] The transverse distance of a crack refers to the horizontal distance between the crack and the reference drip position relative to the deviation position. It is obtained by analyzing the deviation position and the rainfall trajectory. In the analysis process, the deviation trajectory is obtained by comparing the deviation position with the rainfall trajectory. The deviation position is updated based on the angular deviation between the deviation trajectory and the rainfall trajectory at the reference drip position. Finally, the horizontal distance between the updated deviation position and the reference drip position is calculated as the transverse distance of the crack.

[0118] The deviation time point refers to the actual time point at which a pressure change is detected at the deviation location. The deviation time point is obtained by retrieving the pressure change value at the deviation location from the timestamp data of the pressure sensor.

[0119] S73: The interval duration is obtained based on the deviation time point and the dripping time point.

[0120] The interval duration refers to the length of time between the deviation time point and the dripping time point. The interval duration is obtained by analyzing the deviation time point and the dripping time point. The method for analyzing the interval duration is common knowledge to those skilled in the art and will not be elaborated here.

[0121] S74: Update the interval based on the preset dust inspection method.

[0122] The dust inspection method refers to a method used to inspect the dust on the insulation layer of the grounding wire. The dust inspection method calculates the maximum time it takes for rainwater to carry dust to the pressure sensor, and then re-acquires the interval time after the maximum time to reduce the deviation caused by dust in crack detection.

[0123] S75: The estimated crack volume is obtained based on the interval duration, pressure change value, and baseline change value.

[0124] The estimated crack volume refers to the estimated internal volume of cracks appearing on the insulation layer of the grounding wire. It is calculated by analyzing the number of water droplets that are likely to appear at the deviation position within the time interval (there are cases where water droplets enter the crack but do not flow downwards). Based on the product of the number of water droplets and the baseline change value, the difference between the pressure change value and the baseline change value is calculated. The sum of the product value and the difference is used as the estimated crack volume.

[0125] S76: Different deviation trajectories are obtained by comparing the deviation location with the rainfall trajectory.

[0126] Deviation trajectory refers to the abnormal flow path of rainwater that deviates from the normal rainfall path due to the presence of cracks. Since the height and location of the cracks are unknown, cracks at different heights in the rainfall trajectory will produce different trajectories. By analyzing the deviation locations and the rainfall trajectory, different deviation trajectories can be obtained. Among the different deviation trajectories, there are trajectories corresponding to bends caused by different locations of the cracks.

[0127] S77: The actual duration is obtained based on different deviation trajectories and wiring models.

[0128] The actual duration refers to the time it takes for rainwater to flow along the deviation trajectory to the deviation position. The actual duration is obtained by simulating different deviation trajectories using a wiring model. The method for obtaining the actual duration is common knowledge to those skilled in the art and will not be elaborated here.

[0129] S78: The crack height distance is obtained by comparing the consistency and deviation trajectory between the actual duration and the interval duration. The crack location and crack range are obtained by combining the crack height distance, crack lateral distance and crack estimated volume.

[0130] Crack height distance refers to the positional deviation of the crack in the direction perpendicular to the ground wire. By comparing the actual duration with the interval duration, the deviation trajectory corresponding to the consistency between the actual duration and the interval duration is retrieved as the marked deviation trajectory, and the height of the crack in the marked deviation trajectory is taken as the crack height distance.

[0131] Then, using the reference drop position as a reference, the three-dimensional coordinates are determined by the crack's lateral distance and crack height distance (vertical coordinates). The crack's estimated volume is used as the total volume. Combining the crack's lateral distance and crack height distance, the crack's depth (which is less than the insulation layer's thickness) is calculated, and the crack's extent is finally determined. This will not be elaborated further here.

[0132] Dust inspection methods include: S80: Retrieve dust distribution parameters from outdoor environmental information.

[0133] Dust distribution parameters refer to the dust parameters around the grounding wire insulation layer, which are obtained by retrieving dust distribution parameters from outdoor environmental information.

[0134] S81: Based on the charging specifications and dust distribution parameters, the reference blowing parameters are obtained.

[0135] The reference blowing parameters refer to the force and direction of the airflow that can blow dust to the surface of the grounding wire's insulation layer. These parameters are obtained by retrieving the grounding wire's size range from the charging specifications and analyzing this range in conjunction with dust distribution parameters. The analysis method for the reference blowing parameters is common knowledge to those skilled in the art and will not be elaborated upon here.

[0136] S82: Obtain the marked blowing period by using outdoor environmental information and baseline blowing parameters.

[0137] The marked wind period refers to the time interval during which the baseline wind parameters are met in the outdoor environment. The marked wind period is the time interval during which the wind exceeds the baseline wind parameters, which is retrieved from the outdoor environment information.

[0138] S83: The grounding aging level is determined based on the marked blowing time, outdoor environment information, and charging specifications.

[0139] Grounding aging degree refers to the degree of aging of the insulation layer of the grounding wire marked with the air blowing period. The grounding aging degree is obtained by analyzing the marked air blowing period, outdoor environmental information, and the material of the insulation layer in the charging specifications. The analysis method for grounding aging degree is common knowledge to those skilled in the art and will not be elaborated here.

[0140] S84: The ground adhesion force is obtained based on the degree of ground aging.

[0141] Ground adhesion force refers to the adhesion strength that occurs when the insulation layer of a grounding wire ages. The ground adhesion force is determined by matching the degree of ground aging to a pre-set aging reference table. This table stores the ground adhesion force corresponding to different degrees of ground aging while keeping the insulation material constant; the greater the degree of ground aging, the greater the ground adhesion force. The parameters in the aging reference table are pre-set experimentally by those skilled in the art based on actual conditions and will not be elaborated upon here.

[0142] S85: Combine ground adhesion force with dust distribution parameters and outdoor environmental information to obtain the marking distribution parameters.

[0143] The marked distribution parameters refer to the parameters of actual dust distribution on the grounding wire insulation layer. These parameters are obtained by simulating and analyzing the grounding adhesion force, dust distribution parameters, and outdoor environmental information to determine the dust distribution parameters on the grounding wire insulation layer. The simulation and analysis methods for the marked distribution parameters are common knowledge to those skilled in the art and will not be elaborated upon here.

[0144] S86: The removal duration is obtained by labeling the distribution parameters and the rainfall trajectory.

[0145] The removal time refers to the time it takes for the dust corresponding to the marked distribution parameters to be removed without affecting pressure detection after rainwater washes along the rainfall trajectory. The removal time is obtained by simulating the total amount of dust in the marked distribution parameters and the washing intensity of the rainfall in the rainfall trajectory. The method for obtaining the removal time is common knowledge to those skilled in the art and will not be described in detail here.

[0146] S87: Re-collect interval based on removal duration.

[0147] After removing the duration of rainfall, the interval duration is re-acquired.

[0148] Also includes: S90: Based on the consistency between outdoor environmental information and the preset rainfall type, the marked distribution parameters are obtained through a preset verification method.

[0149] By analyzing the consistency between outdoor environmental information and rainfall type, if the outdoor environmental information does not match the rainfall type, it indicates that there is no rainfall in the outdoor environment, and S80 to S85 are re-executed.

[0150] S91: Impact force is obtained by marking the distribution parameters and ground adhesion force.

[0151] Impact force refers to the force required to dislodge dust and allow it to flow downwards with rainwater. It is derived by analyzing distributed parameters and ground adhesion. The methods for analyzing impact force are common knowledge to those skilled in the art and will not be elaborated upon here. The greater the dust thickness, the greater the impact force.

[0152] S92: Based on the impact force, the marked water output corresponding to different angles is obtained.

[0153] The marked water output refers to the amount of water required to generate an impact force on the grounding wire insulation layer at different angles. The marked water output is matched with a preset water spray reference table based on the impact force. The water spray reference table stores different angles and marked water outputs corresponding to different impact forces. The greater the impact force, the greater the marked water output while keeping the angle constant. The parameters in the water spray reference table are set in advance by those skilled in the art based on actual conditions and will not be elaborated here.

[0154] S93: Compare the marked water output with the preset reference water output to obtain the water output angle.

[0155] The baseline water output is the maximum angle at which water can be discharged, as set by the technicians.

[0156] The water outlet angle refers to the angle between the actual water spray direction and the axis of the grounding wire. By comparing the marked water outlet volume with the reference water outlet volume, the angle corresponding to the marked water outlet volume that is closest to the reference water outlet volume is taken as the water outlet angle.

[0157] S94: Based on the preset spray range, water outlet angle, and marked water volume, the water outlet position is obtained, and water is sprayed according to the water outlet angle, marked water volume, and water outlet position.

[0158] The spray range is the height range set by the technician for spraying the grounding wire insulation layer. The spray range may include the entire height of the grounding wire insulation layer. The spray device may be a water gun.

[0159] The water outlet position refers to the location point that can cover the spray range when spraying water at the water outlet angle. The water outlet position is obtained by mapping the spray range, water outlet angle, and marked water volume to three-dimensional coordinates. The water spraying device is then controlled to spray water at the water outlet position according to the water outlet angle and marked water volume to remove dust in the corresponding area and simulate rainfall to detect cracks on the grounding wire insulation layer.

[0160] Based on the same inventive concept, embodiments of the present invention provide a load balancing control system for a charging pile distribution cabinet, comprising: The acquisition module is used to acquire charging specifications and real-time charging power. The memory is used to store the program for the load balancing control method of the charging pile distribution cabinet; The processor is used to load and execute programs stored in memory.

[0161] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0162] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A load balancing control method for a charging pile distribution cabinet, characterized in that, include: S10: Collects charging specifications and real-time charging power of charging piles; S11: Verify the real-time charging power using a preset verification method; S12: Based on the changes in real-time charging power before and after the update, retrieve the reference power from the charging specifications; S13: Compare the real-time charging power with the reference power to retrieve the adjustable charging station from the charging specifications; S14: Calculate the difference between the real-time charging power and the reference power as the adjustment power; S15: Adjustable charging power is obtained through adjustable charging pile and real-time charging power; S16: Compare adjustable charging power with adjusted power to select whether to increase the power of the adjustable charging station by adjusting power or decrease the real-time charging power by adjusting power.

2. The load balancing control method for charging pile distribution cabinet according to claim 1, characterized in that, Also includes: S20: Collects vehicle battery information, driving route, and vehicle location; S21: Obtain the required driving power based on the driving route; S22: Compare vehicle battery information with required driving power to collect charging station locations; S23: Determine the marked charging location based on changes in vehicle location and the location of charging stations; S24: Obtain the marked charging station from the marked charging location; S25: Obtain the target charging station by using preset driving habits and marked charging stations; S26: Collect vehicle type; S27: Update real-time charging power based on vehicle type and target charging station.

3. The load balancing control method for charging pile distribution cabinet according to claim 2, characterized in that, Methods for determining preset driving habits: S30: Collect historical charging locations and historical charging periods corresponding to vehicle types; S31: Retrieve the historical charging period route from the driving route as the historical driving route; S32: Obtain path change points based on historical driving routes and historical charging locations; S33: Collect historical speed and operation information from historical driving routes; S34: Obtain the changing speed based on historical speed and path change points; S35: Obtain change operation information based on path change points and historical operation information; S36: Combine information on changing speed and changing operation to determine driving habits.

4. The load balancing control method for charging pile distribution cabinet according to claim 2, characterized in that, Methods for updating real-time charging power include: S40: Collect the target allowable power of the target charging pile; S41: Use the reference power of the target charging station as the target reference power; S42: Retrieve the maximum charging power from the vehicle type; S43: Calculate the difference between the target reference power and the maximum charging power as the target deviation power; S44: Update the real-time charging power of the target charging station based on the comparison between the target deviation power and the target allowable power.

5. The load balancing control method for charging pile distribution cabinet according to claim 1, characterized in that, The testing methods include: S50: Calculate the difference between the real-time charging power and the preset benchmark test power as the power deviation value; S51: Select the output of preset abnormal information based on whether the power deviation value falls within the preset allowable range, or retrieve the grounding type from the charging specification. S52: Based on the consistency between the grounding type and the preset outdoor grounding type, retrieve the grounding location from the charging specifications and collect the outdoor environmental information of the grounding location. S53: Output preset prompts based on outdoor environmental information.

6. The load balancing control method for charging pile distribution cabinet according to claim 5, characterized in that, Methods prior to outputting the preset prompt message include: S60: Based on the consistency between outdoor environmental information and preset rainfall type, retrieve rainfall parameters from the outdoor environmental information. The rainfall parameters include rainfall amount and rainfall direction. S61: Extract the outer layer texture from the charging specifications; S62: Generate a grounding model by combining the outer layer texture with the charging specifications; S63: Combine grounding model, rainfall amount and rainfall direction to generate rainfall trajectory; S64: Collect pressure change values ​​and pressure change locations; S65: The location and extent of the cracks are determined by the pressure change value, the location of the pressure change, and the rainfall trajectory. S66: Output a prompt message based on the crack location and crack extent.

7. The load balancing control method for charging pile distribution cabinet according to claim 6, characterized in that, Methods for determining the location and extent of cracks include: S70: Use the rainfall trajectory to retrieve the baseline drip location, drip time, and baseline change value; S71: Obtain the deviation position based on the consistency between the reference drip position and the pressure change position; S72: Obtain the lateral distance of the crack by comparing the deviation location with the rainfall trajectory, and collect the deviation time point of the pressure change value at the deviation location; S73: The interval duration is obtained based on the deviation time point and the dripping time point; S74: Update the interval based on the preset dust inspection method; S75: The estimated crack volume is obtained based on the interval duration, pressure change value, and baseline change value; S76: Different deviation trajectories are obtained by comparing the deviation location with the rainfall trajectory; S77: Obtain the actual duration based on different deviation trajectories and wiring models; S78: The crack height distance is obtained by comparing the consistency and deviation trajectory between the actual duration and the interval duration. The crack location and crack range are obtained by combining the crack height distance, crack lateral distance and crack estimated volume.

8. The load balancing control method for charging pile distribution cabinet according to claim 7, characterized in that, Dust inspection methods include: S80: Retrieve dust distribution parameters from outdoor environmental information; S81: Based on charging specifications and dust distribution parameters, the baseline blowing parameters are obtained; S82: Obtain the marked blowing period by combining outdoor environmental information with baseline blowing parameters; S83: The grounding aging level is determined based on the marked blowing time, outdoor environment information, and charging specifications; S84: Obtain the grounding adhesion force based on the degree of grounding aging; S85: Combine ground adhesion force with dust distribution parameters and outdoor environmental information to obtain the marking distribution parameters; S86: The removal duration is obtained by labeling the distribution parameters and rainfall trajectory; S87: Re-collect interval based on removal duration.

9. The load balancing control method for charging pile distribution cabinet according to claim 8, characterized in that, Also includes: S90: Based on the consistency between outdoor environmental information and the preset rainfall type, the labeled distribution parameters are obtained through a preset verification method; S91: Impact force is obtained by marking distribution parameters and ground adhesion force; S92: Based on the impact force, the marked water output corresponding to different angles is obtained; S93: Compare the marked water output with the preset baseline water output to obtain the water output angle; S94: Based on the preset spray range, water outlet angle, and marked water volume, the water outlet position is obtained, and water is sprayed according to the water outlet angle, marked water volume, and water outlet position.

10. A load balancing control system for a charging pile distribution cabinet, characterized in that, include: The acquisition module is used to acquire charging specifications and real-time charging power. A memory for storing a program that implements the load balancing control method for the charging pile distribution cabinet as described in any one of claims 1 to 9; The processor is used to load and execute programs stored in memory.

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