Vehicle charging station management system and method

Abstract

The embodiment of the invention provides a vehicle charging station management system and method, the system comprises a management platform, a camera device and at least one charging pile, the camera device is configured to identify a target vehicle entering a charging parking space of a station and send vehicle information of the target vehicle to the management platform; the at least one charging pile is configured to obtain the charging state of the target vehicle, generate a charging state instruction and send the charging state instruction to the management platform; and the management platform is configured to determine the type of a space occupying event based on the vehicle information and / or the charging state instruction, and execute a corresponding management strategy at least based on the type of the space occupying event.

Description

Technical Field

[0001] This specification relates to the field of vehicle charging, and in particular to a vehicle charging station management system and method. Background Art

[0002] In recent years, as the market share of new energy vehicles continues to rise, users' demand for charging has also increased dramatically. However, the phenomenon of "occupying a parking space for charging but not charging" is common in charging stations. This not only wastes charging pile resources, but also fails to meet users' charging needs and guarantees the income of station operators. To solve the above "occupying a space" problem, stations have gradually introduced a space-occupying charging model to manage users' space-occupying behavior and improve the utilization rate of charging guns. For example, charging can be charged through local calculations on the charging pile: when the user is charging, the charging pile can monitor the reset status of the charging gun in real time through the built-in monitoring module of the pile, and calculate the occupancy time when the gun is powered off to calculate the charge. However, this solution is easily affected by equipment anomalies, such as gun offline, gun jump, and gun failure. When a failure occurs, it may cause billing anomalies, affecting the user experience.

[0003] Therefore, it is necessary to provide a vehicle charging station management system and method to solve the above problems. Summary of the Invention

[0004] One or more embodiments of the present specification provide a vehicle charging station management system, the system comprising a management platform, a camera device, and at least one charging pile, wherein: the camera device is configured to identify a target vehicle entering a charging parking space in the station, and send vehicle information of the target vehicle to the management platform; the at least one charging pile is configured to obtain the charging status of the target vehicle and generate a charging status instruction, and send the charging status instruction to the management platform; the management platform is configured to determine the type of occupancy event based on the vehicle information and / or the charging status instruction, and execute a corresponding management strategy based at least on the type of the occupancy event.

[0005] In some embodiments, the type of the occupancy event includes one or more of occupancy start, occupancy charging, occupancy free, occupancy billing, and occupancy end.

[0006] In some embodiments, the management platform is further configured to: obtain an image of the charging parking space during the duration of the occupancy event; determine the management strategy based on the image of the charging parking space and the type of the occupancy event; and execute the management strategy.

[0007] In some embodiments, the management platform is further configured to: obtain the charging parking space image from a video stream corresponding to the duration of the occupancy event captured by the camera device.

[0008] In some embodiments, the management platform is further configured to: execute a preset decision algorithm based on one or more policy factors to determine a correction factor; adjust the management policy based on the correction factor to determine an adjusted management policy; and execute the adjusted management policy.

[0009] In some embodiments, the policy factors include one or more of a user behavior policy, a charging anomaly policy, a device anomaly policy, and a charging station volume ratio policy.

[0010] In some embodiments, the management platform is further configured to: obtain a preset correspondence, the preset correspondence including a mapping relationship between the state of the charging pile and the type of the occupancy event; determine the type of the occupancy event based on the preset correspondence, the vehicle information and / or the charging status instruction.

[0011] In some embodiments, in order to execute a corresponding management strategy based on the type of the occupancy event, the management platform is further configured to: determine a management strategy corresponding to the type of the occupancy event; generate a management instruction for executing the management strategy; send the management instruction to the target device so as to execute a preset operation according to the management instruction through the target device; wherein the target device includes at least one of the user terminal of the target vehicle, the gate system of the charging station, and the camera device.

[0012] One or more embodiments of the present specification also provide a vehicle charging station management method, which is executed based on the vehicle charging station management system described in any of the above embodiments, and includes: determining the identity information of a target vehicle entering a charging parking space in the station; obtaining the charging status of the target vehicle and generating a charging status instruction; determining the type of occupancy event based on the identity information and / or the charging status instruction; and executing a corresponding management strategy based at least on the type of occupancy event.

[0013] In some embodiments, the type of the occupancy event includes one or more of occupancy start, occupancy charging, occupancy free, occupancy billing, and occupancy end.

[0014] In some embodiments, executing the corresponding management strategy at least based on the type of the occupancy event includes: obtaining an image of the charging parking space within the duration of the occupancy event; determining the management strategy based on the charging parking space image and the type of the occupancy event; and executing the management strategy.

[0015] In some embodiments, executing a corresponding management policy at least based on the type of the occupancy event includes: executing a preset decision algorithm based on one or more policy factors to determine a correction factor; adjusting the management policy based on the correction factor to determine an adjusted management policy; and executing the adjusted management policy.

[0016] In some embodiments, the policy factors include one or more of a user behavior policy, a charging anomaly policy, a device anomaly policy, and a charging station volume ratio policy.

[0017] One or more embodiments of the present specification also provide another vehicle charging station management system, the system comprising: an identification module configured to identify a target vehicle entering a charging parking space in the station and to send vehicle information of the target vehicle to a management platform; an acquisition module configured to obtain the charging status of the target vehicle and generate a charging status instruction; a determination module configured to determine the type of occupancy event based on the identity information of the target vehicle and / or the charging status instruction, and to execute a corresponding management strategy based at least on the type of the occupancy event. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] This specification will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0019] Figure 1 This is a schematic diagram of an application scenario of a vehicle charging station management system according to some embodiments of this specification;

[0020] Figure 2 is an exemplary structural block diagram of a vehicle charging station management system according to some embodiments of this specification;

[0021] Figure 3 is an exemplary schematic diagram of determining the relationship between the type of a placeholder event and a charging state instruction according to some embodiments of this specification;

[0022] Figure 4 is an exemplary structural block diagram of a management platform of a vehicle charging station management system according to some embodiments of this specification;

[0023] Figure 5 is an exemplary flow chart of a vehicle charging station management method according to some embodiments of this specification;

[0024] Figure 6 is an exemplary module diagram of a vehicle charging station management system according to some embodiments of this specification;

[0025] Figure 7A and Figure 7B is a schematic diagram of a charging parking space image according to some embodiments of this specification. DETAILED DESCRIPTION

[0026] To more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this specification. Those skilled in the art can apply this specification to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0027] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0028] As used in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not refer to the singular but also include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0029] Flowcharts are used throughout this specification to illustrate the operations performed by systems according to embodiments of this specification. It should be understood that preceding or following operations do not necessarily need to be performed in exact order. Instead, the steps may be processed in reverse order or simultaneously. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0030] Figure 1 This is a schematic diagram of an application scenario of a vehicle charging station management system according to some embodiments of this specification.

[0031] In some embodiments, as Figure 1 As shown, an application scenario 100 of a vehicle charging station management system (hereinafter referred to as application scenario 100 ) includes a charging station 110 , a charging vehicle 120 , a network 130 , a terminal 140 , a processor 150 , and a storage device 160 .

[0032] The charging station 110 is a facility for providing charging services for vehicles powered by electric energy. In some embodiments, the charging station 110 includes a charging parking space (not shown) and a charging pile 111. For example, after the charging vehicle 120 enters the charging station 110, it can be parked in the charging parking space and charged by the charging pile 111. In some embodiments, the charging station 110 may also include various other facilities / equipment, such as a gate system, a camera device, etc., which are not limited here. The camera device can be used to capture images, for example, to capture images including the charging pile 111 and the charging vehicle 120. The captured images can be used to determine whether the charging vehicle 120 is located in the charging parking space and whether the charging pile is used for charging. In some embodiments of this specification, the charging station 110 may also be referred to as a station.

[0033] The charging vehicles 120 may include new energy vehicles, electric bicycles, electric motorcycles, electric tricycles, and the like.

[0034] The network 130 can connect various components in the application scenario 100 and / or connect other components outside the application scenario 100. In some embodiments, one or more components of the application scenario 100 (e.g., the charging station 110, the charging vehicle 120, the network 130, the terminal 140, the processor 150, and the storage device 160) can be connected and / or communicate with each other via the network 130. For example, the charging station 110 (e.g., the charging pile 111) can send data related to the charging status of the charging vehicle 120 to the processor 150 via the network 130.

[0035] Terminal 140 can provide functional components related to user interaction and implement user interaction functions (such as providing or displaying information and data to users). Users can refer to managers of charging station 110 or users of charging vehicle 120. By way of example only, terminal 140 can be a mobile device, tablet computer, laptop computer, desktop computer, or other device with input and / or output functions, or any combination thereof.

[0036] The processor 150 is capable of processing information and / or data related to the vehicle charging station management system to perform one or more functions described in this specification. In some embodiments, the processor 150 can determine the identity information of a target vehicle entering a charging parking space at the station; obtain the charging status of the target vehicle and generate a charging status instruction; determine the type of occupancy event based on the identity information and / or the charging status instruction; and execute a corresponding management strategy based on at least the type of occupancy event. Detailed description of the relevant content can be found later (e.g. Figure 2 、 Figure 3 etc.) related descriptions.

[0037] In some embodiments, the processor 150 may include a central processing unit (CPU), a digital signal processor (DSP), a microcontroller unit (MCU), a computer, a user console, or the like, or any combination thereof. In some embodiments, the processor 150 may include a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 150 may be local or remote. In some embodiments, the processor 150 may be implemented on a cloud platform. By way of example only, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-layer cloud, or the like, or any combination thereof.

[0038] The storage device 160 is capable of storing data, instructions and / or any other information. In some embodiments, the storage device 160 can store data obtained from the charging station 110, the charging vehicle 120 and / or the processor 150, such as vehicle information of the target vehicle, management policies for the target vehicle, etc. In some embodiments, the storage device 160 may include a large-capacity memory, a removable memory, a volatile read-write memory, a read-only memory (ROM), etc., or any combination thereof. In some embodiments, the storage device 160 can be executed on a cloud platform. In some embodiments, the storage device 160 can be connected to the network 130 to communicate with one or more other components of the application scenario 100 (e.g., the charging station 110, the processor 150, etc.). In some embodiments, the storage device 160 can be part of the processor 150.

[0039] It is worth noting that the application scenario 100 of the vehicle charging station management system is provided for illustrative purposes only and is not intended to limit the scope of this specification. For those skilled in the art, various changes and modifications can be made based on the description of this specification. For example, the application scenario 100 of the vehicle charging station management system may also include a database, an information source, etc. For another example, the application scenario 100 of the vehicle charging station management system may be implemented on other devices to achieve similar or different functions. However, these changes and modifications do not deviate from the scope of this specification.

[0040] Figure 2 This is an exemplary structural block diagram of a vehicle charging station management system according to some embodiments of this specification. Figure 2 As shown, the vehicle charging station management system 200 includes a camera 210 , at least one charging pile 220 and a management platform 230 .

[0041] The camera device 210 is configured to identify a target vehicle entering a charging parking space at the station and send vehicle information of the target vehicle to the management platform 230 .

[0042] The camera device 210 refers to a device with an image (and / or video) acquisition function, such as a smart camera, a still camera, a video camera, a surveillance camera, etc.

[0043] The camera device 210 can be deployed at the charging station 110 and identify target vehicles entering the charging parking space of the station. The target vehicle refers to a vehicle entering or located in the charging parking space of the station.

[0044] For example, the camera device 210 can capture images and / or videos including the target vehicle and / or charging station, and process the captured images and / or videos using an image recognition algorithm to determine the vehicle information of the target vehicle. Exemplary image recognition algorithms include convolutional neural networks, support vector machines, decision tree algorithms, etc.

[0045] In some embodiments, there may be one or more camera devices 210. When there are multiple camera devices, they may be respectively disposed at different locations of the charging station 110 to capture images at different angles.

[0046] The vehicle information of the target vehicle may include the target vehicle's license plate number, historical charging information, historical occupancy information, etc. In some embodiments, the historical charging information and historical occupancy information may be read from a storage device or database after the target vehicle is identified based on its license plate number.

[0047] Historical charging information refers to the charging information of the target vehicle within a historical time period. Exemplary historical charging information may include historical charging times, average charging time, historical charging order information, etc.

[0048] Historical occupancy information refers to the occupancy information of the target vehicle entering the charging parking space at the station within the historical time period. Exemplary historical occupancy information may include historical occupancy duration, historical occupancy count, etc.

[0049] In some embodiments, historical occupancy information can be retained in the form of parking space usage records and stored in the storage device 160, supporting real-time reading. Among them, parking space usage records refer to records of vehicles using charging parking spaces. A parking space usage record includes the entire process from the vehicle entering the charging parking space to the vehicle leaving the charging parking space, and is associated with the entire charging process (if charging occurs). For more information about parking space usage records, please refer to Figure 3 and its related descriptions.

[0050] In some embodiments, the camera device 210 may also include a communication module, and the camera device 210 can send images and / or videos of the target vehicle and vehicle information of the target vehicle to the management platform 230 through the communication module, and obtain information from the storage device 160 or the database through the communication module.

[0051] In some embodiments, the vehicle information of the target vehicle may also include a vehicle entry instruction. For example, after the camera device 210 recognizes that a vehicle has entered a charging parking space, it may generate a vehicle entry instruction, bind the recognized vehicle information to the vehicle entry instruction, and send the vehicle entry instruction to the management platform. The vehicle entry instruction can be used to enable the management platform to create or obtain a parking space usage record for the target vehicle. For example, when the target vehicle enters the station for charging for the first time, the management platform may create a new parking space usage record. When the target vehicle has entered the station for charging in the past, the management platform may obtain the historically created parking space usage record.

[0052] In some embodiments, the charging station 220 is configured to obtain the charging status of the target vehicle and generate a charging status instruction. The charging station 220 can be deployed at the charging station 110 and charge the vehicle via a charging gun. In some embodiments, the charging station 220 includes at least one.

[0053] In some embodiments, the charging station includes at least one charging gun that can be plugged into a charging port of a vehicle to charge the vehicle.

[0054] The target vehicle's charging status refers to the vehicle's current battery charging status. For example, the charging status may include "not charging," "charging started," "charging in progress," or "charging completed." In some embodiments, the charging status may also include information such as the remaining battery charge percentage and battery health.

[0055] Charging status instructions refer to instructions related to the charging status. For example, charging status instructions may include 108-1 (insert charging gun), 108-3 (start charging), 108-4 (end charging), 202 (bill report), 108-2 (unplug charging gun), 104-1 (charging gun occupied), and 104-0 (charging gun idle).

[0056] In some embodiments, the charging status of the target vehicle can be obtained by a charging pile, and a corresponding charging status instruction can be generated by the charging pile.

[0057] In some embodiments, the charging station 220 may send a charging status instruction to the management platform 230 via a network.

[0058] In some embodiments, the charging station 220 may send a charging status instruction to the management platform 230 immediately after generating the charging status instruction.

[0059] In some embodiments, the generation of charging status instructions can be periodic or real-time, for example, generated in real time when the charging status of the target vehicle changes (such as from uncharged to charging, from charging to charging completed), or the charging status instructions can be generated periodically during the process of uncharging or charging, for example, generating an instruction once every 30 seconds.

[0060] The management platform 230 is configured to determine the type of the occupancy event based on the vehicle information and / or the charging status instruction, and to execute a corresponding management policy based at least on the type of the occupancy event.

[0061] The management platform 230 is a working platform for coordinating and managing the vehicle charging station management system, which can analyze and process the data / information / instructions in the vehicle charging station management system. In some embodiments, the management platform 230 may include a central processing unit (CPU), a digital signal processor (DSP), a microcontroller unit (MCU), a computer, a user console, etc., or any combination thereof. In some embodiments, the management platform 230 may include a single server or a server group. The server group may be centralized or distributed. In some embodiments, the management platform 230 may be local or remote. In some embodiments, the management platform 230 may be implemented on a cloud platform. By way of example only, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-layer cloud, etc., or any combination thereof.

[0062] An occupation event refers to any charging-related event that occurs while the target vehicle is occupying a charging space. The type of an occupation event refers to the type of event that occurs while the target vehicle is occupying a charging space.

[0063] In some embodiments, the type of the occupancy event includes one or more of occupancy start, occupancy charging, occupancy free, occupancy billing, and occupancy end.

[0064] The start of occupation means that the target vehicle enters the charging parking space and starts to occupy the charging parking space.

[0065] Occupancy charging means that the target vehicle is located in the charging space and starts charging using the charging pile.

[0066] Free parking means that the target vehicle is located in the charging space and is charging or not charging, but no charge is made for the vehicle using the charging space.

[0067] Occupancy billing means that after the target vehicle has completed charging, it is still in the charging parking space, and the target vehicle is charged for occupying the charging parking space.

[0068] The end of the parking space occupation means that the target vehicle leaves the charging space and the parking space occupation event ends.

[0069] In some embodiments, the management platform may determine the type of the corresponding occupancy event based on the vehicle's charging status. The vehicle's charging status may be directly determined based on the charging status instruction.

[0070] In some embodiments, the management platform 230 is further configured to: obtain a preset correspondence, and determine the type of the occupancy event based on the preset correspondence, vehicle information, and / or charging status instructions.

[0071] The preset correspondence refers to a predetermined mapping relationship between the status of a charging pile and the type of a placeholder event. In some embodiments, the status of a charging pile and the type of a placeholder event have a one-to-one correspondence. Therefore, after determining the status of the charging pile, the type of the corresponding placeholder event can be determined based on the preset correspondence.

[0072] When the target vehicle is charging, the status of the charging pile (charging gun) will also change accordingly at different charging stages. For example, when the target vehicle enters the charging space but has not yet started charging, the charging pile status is Idle, and the corresponding occupancy event is Occupancy Start; when the target vehicle starts charging, the charging pile status is Charging, and the corresponding occupancy event is Occupancy Charging; when the target vehicle finishes charging but has not yet left the charging space, the charging pile status is Just Finished Charging, and the corresponding occupancy event is Occupancy Free; if the target vehicle has not left the charging space for a certain period of time after charging, the charging pile status is Finished Charging - Timed Out, and the corresponding occupancy event is Occupancy Billing, etc.

[0073] In some embodiments, the management platform 230 can determine the status of the charging pile based on the vehicle information and / or the charging status instruction, and determine the type of the occupancy event based on the status of the charging pile through a preset correspondence. For more information on determining the type of occupancy event, please refer to Figure 3 and its related descriptions.

[0074] After determining the placeholder event, the management platform 230 may execute a corresponding management policy based at least on the type of the placeholder event.

[0075] The management strategy refers to the way / method of managing the target vehicle's space occupation event. For example, the management strategy may include urging the target vehicle to move, whether to charge a fee for the target vehicle's space occupation event, and the fee amount for the space occupation event.

[0076] In some embodiments, the management platform 230 may determine a corresponding management policy based on the type of the placeholder event, and then execute the corresponding management policy.

[0077] In some embodiments, to execute a corresponding management policy based on the type of occupancy event, the management platform 230 is further configured to: determine a management policy corresponding to the type of occupancy event; generate a management instruction for executing the management policy; and send the management instruction to a target device, so that the target device performs a preset operation according to the management instruction. The target device includes at least one of a user terminal of a target vehicle, a gate system of a charging station, and a camera device. The user terminal of the target vehicle refers to a terminal used by the owner of the target vehicle.

[0078] In some embodiments, the management platform 230 can determine a management strategy based on a one-to-one correspondence between the type of occupancy event and a preset management strategy. For example, for an occupancy start event, the corresponding management strategy is a reminder to charge or an urging to move the vehicle; for an occupancy charging event, there may be no corresponding management strategy (this is normal charging behavior and does not require management); for a free occupancy event, the corresponding management strategy is an urging to move the vehicle; for a paid occupancy event, the corresponding management strategy is a combination of charging and urging to move the vehicle, etc. The urging to move the vehicle can be manual or automatic. Automatic urging to move the vehicle means that the management platform automatically sends a message to the vehicle owner reminding them to move the vehicle.

[0079] In some embodiments, management instructions correspond to management policies. That is, the management platform 230 can generate corresponding management instructions based on different management policies. For example, if the management policy includes a charging reminder, the management platform can generate a charging reminder instruction; if the management policy includes a urging to move the vehicle, the management platform can generate a urging to move the vehicle; if the management policy includes billing, the management platform can generate an instruction to obtain an image of the charging space; if the management policy includes billing, the management platform can generate a payment instruction, etc.

[0080] In some embodiments, the management instructions also include instructions for managing the gate system.

[0081] The barrier gate system can be used to control vehicles entering and exiting the parking lot. In some embodiments, the barrier gate system may include a barrier gate machine, a control system, a sensor, a communication module, and a display device.

[0082] The instructions for managing the barrier gate system include a first instruction and a second instruction.

[0083] The first instruction is the instruction of the management platform to manage the gate system when the target vehicle enters the charging station.

[0084] In some embodiments, when a target vehicle enters a charging station, the management platform may identify (eg, through a camera) and record the vehicle information of the target vehicle, and generate a first instruction.

[0085] The second instruction is the instruction of the management platform to manage the gate system when the target vehicle leaves the charging station.

[0086] In some embodiments, when the target vehicle leaves the charging station, the management platform may generate a second instruction.

[0087] In some embodiments, the management platform 230 may further send a management instruction to the target device so that the target device executes a preset operation according to the management instruction.

[0088] A preset operation refers to a preset action that the target device performs in response to a management instruction. In some embodiments, the preset operation may correspond to a management instruction. For example, the management platform may send a charging reminder instruction to the user terminal of the target vehicle, and the user terminal of the target vehicle executes a preset operation corresponding to the charging reminder instruction, including: parsing the charging reminder instruction, extracting information in the instruction (such as information reminding to charge), and then reminding the owner of the target vehicle to charge. For another example, the management platform may send a urging instruction to the user terminal of the target vehicle, and the user terminal of the target vehicle executes a preset operation corresponding to the urging instruction, including: parsing the urging instruction, extracting information in the instruction (such as information urging the user to move the car), and then reminding the owner of the target vehicle to move the car. For another example, the management platform may send an instruction to obtain an image of a charging parking space to a camera device, and the camera device executes a preset operation corresponding to the instruction to obtain an image of a charging parking space, including: parsing the instruction to obtain an image of a charging parking space, extracting information in the instruction (such as information urging the user to move the car), and then obtaining an image of the charging parking space. For another example, the management platform can send a payment instruction to the user terminal of the target vehicle, and the user terminal of the target vehicle executes the preset operations corresponding to the payment instruction, including: parsing the payment instruction, extracting the information in the instruction (such as reminding the user to pay), and then reminding the owner of the target vehicle to pay.

[0089] In some embodiments, the management platform can also send the first instruction to the barrier gate system of the charging station. After receiving the first instruction, the barrier gate system executes the preset operation corresponding to the first instruction, including: identifying the vehicle information of the target vehicle, opening the barrier gate, and closing the barrier gate after the target vehicle enters the charging station.

[0090] In some embodiments, the management platform may also send a second instruction to the barrier gate system of the charging station. After receiving the second instruction, the barrier gate system executes the preset operation corresponding to the second instruction, including: judging whether the target vehicle needs to pay, if no payment is required, opening the barrier gate, and closing the barrier gate after the target vehicle leaves the charging station; if the target vehicle needs to pay, judging whether the target vehicle has paid, if it has paid, opening the barrier gate, and closing the barrier gate after the target vehicle leaves the charging station; if it has not paid, reminding the user to pay (such as by voice, display device, etc.), opening the barrier gate after the user pays, and closing the barrier gate after the target vehicle leaves the charging station. The above description of management instructions and preset operations is only an example, and other management instructions and preset operations can also be set based on needs, which is not limited here.

[0091] In some embodiments, after the target device completes the preset operation based on the management instruction, it can also return the execution result to the management platform 230. For example, the target device can return the result that the user has been reminded to pay the fee, the user has been reminded to move the car, or the gate has been opened / closed to the management platform.

[0092] In some embodiments, the management platform can communicate and interact with the target device through various methods. For example, the management platform and the target device can transmit and interact commands via a wired or wireless local area network (such as WiFi or ZigBee). In some embodiments, the communication and interaction of commands between various components of the vehicle charging station management system can be based on a communication protocol. Exemplary communication protocols include HTTP and TCP / IP.

[0093] In some embodiments, taking into account situations such as charging pile equipment failure and instruction sending and receiving errors, the wrong occupancy event type may be determined. Therefore, in order to improve the accuracy and rationality of the management strategy for charging piles and improve user experience, the management platform 230 can also determine the management strategy based on the charging parking space image and the type of occupancy event, and execute the corresponding management strategy.

[0094] In some embodiments, the management platform 230 is further configured to: obtain images of the charging parking space during the duration of the occupancy event; determine a management policy based on the images of the charging parking space and the type of the occupancy event; and execute the management policy.

[0095] The charging parking space image refers to an image including the area where the charging parking space is located. In some embodiments, the charging parking space image can be obtained by a camera device in the station.

[0096] For example, the management platform 230 may be further configured to capture the charging parking space image from the video stream corresponding to the duration of the occupancy event captured by the camera device. The occupancy event usually lasts for a period of time. For example, from the time the vehicle enters the charging parking space to the time the charging gun is inserted into the vehicle to start charging, this period of time may last for several minutes. This period of time is the duration of the occupancy start event. The camera device can capture the video stream by video surveillance. The management platform 230 can select any one frame from the multiple image frames corresponding to the video stream as the charging parking space image, or it can select a specified frame image (for example, if the frame rate of the video stream is 30 frames per second, the 15th frame image of a certain second can be selected), or it can randomly capture multiple frames of images and select the frame with the best image quality from the multiple frames of images.

[0097] In some embodiments, the management platform 230 may also capture an image frame at a corresponding time from the video stream as a charging parking space image based on the generation time of the charging status instruction.

[0098] In some embodiments, the management platform 230 can also perform image recognition on the charging parking space image. For example, through image recognition algorithms, such as neural network models, etc., image recognition is performed to identify the vehicle, charging gun, time, etc. in the charging parking space image and perform watermarking. Figure 7A and Figure 7B As shown, the charging parking space image also includes watermark information such as the parking space usage status (i.e., the type of parking space occupancy event) and the vehicle charging time.

[0099] In some embodiments, the camera device 210 may send a video stream corresponding to the duration of the captured occupancy event to the management platform 230 so that the management platform 230 can obtain an image of the charging parking space.

[0100] In some embodiments, the camera device 210 may also directly send a frame of image in the video stream to the management platform 230, and the management platform 230 will use the frame of image as the charging parking space image. For example, the management platform 230 may send the time node corresponding to the charging status instruction (including the parking space usage record start time, charging start time, charging end time, occupancy fee start time, occupancy fee end time, and parking space usage record end time) to the camera device 210, and the camera device 210 will obtain the corresponding charging parking space image instruction based on the time node. Exemplary instructions for obtaining charging parking space images include the C-2-startCharge charging start time charging image capture instruction; the C-2-endCharge charging end time charging parking space image capture instruction; the C-2-feeStart charging parking space image capture instruction at the start time of occupancy billing; the C-2-feeOccupy charging parking space image capture instruction at the occupancy fee charge time; the C-2-pullGun charging parking space image capture instruction at the pull gun time, etc.

[0101] In some embodiments, the management platform 230 can determine the management policy based on the charging spot image and the type of the occupying event.

[0102] The management platform can determine whether the type of the occupying event is accurate according to the charging spot image, and determine the management policy according to the determination result. For example, when the user disputes the occupying fee (or before the management platform 230 executes the management policy), the management platform can further determine whether the current occupying charge is valid based on the charging spot image and the type of the occupying event. If it is determined that it is invalid, the management policy can be determined as canceling the fee bill or performing a refund operation, etc.

[0103] For example, in the occupying charging stage, Figure 7A The charging spot image shown in the figure shows that the vehicle actually occupies, which can assist in proving that the current charging is correct. For another example, Figure 7B The charging spot image shown in the figure shows that there is no vehicle occupying on site, but the type of the occupying event is occupying (i.e., in the occupying charging stage), which can be determined that the current charging is invalid. The cause may be that the 108-2 device gun pulling instruction is misreported, etc.

[0104] It can be understood that the recognition and charging of the vehicle occupying are very dependent on the instructions of the hardware device, and the device instructions often have misreporting or false reporting. In the embodiments of the present specification, the management policy is determined based on the charging spot image and the type of the occupying event, which can assist in verifying the occupying recognition result, further improve the occupying recognition accuracy, and improve the user satisfaction.

[0105] In some embodiments, in order to further better manage the charging spot, the management platform 230 is further configured to: execute a preset decision algorithm based on one or more policy factors to determine a correction factor; adjust the management policy based on the correction factor to determine an adjusted management policy; and execute the adjusted management policy.

[0106] The policy factor refers to a factor that affects the management policy. In some embodiments, the policy factor includes one or more of a user behavior policy, a charging anomaly policy, a device anomaly policy, and a charging field station volume rate policy.

[0107] The user behavior policy refers to the influence of the user's behavior on the management policy. For example, when the user first occupies or first occupies in a relatively long period of time (such as more than 6 months), the user behavior policy is 1, otherwise it is 0. In some embodiments of the present specification, considering the user behavior policy can reward new users or old users with good charging behavior, and encourage to reduce bad occupying behavior.

[0108] The charging anomaly policy refers to the impact of charging anomalies (such as startup failure, charging failure, or tripping) on ​​the management policy during the user's current charging process. For example, if there is an anomaly during the user's current charging process, the charging anomaly policy value is 1; otherwise, it is 0. In some embodiments of this specification, considering the charging anomaly policy can prevent users from being charged a space fee even if charging fails, avoiding secondary damage to users and improving the user experience.

[0109] The device anomaly policy refers to the impact of charging device anomalies (such as an offline charging gun or a charging gun failure) on the management policy during the user's current charging process. For example, if a charging device anomaly occurs during the user's current charging process, the device anomaly policy value is 1; otherwise, it is 0. In some embodiments of this specification, considering the device anomaly policy can ensure billing accuracy.

[0110] The charging station volume ratio strategy refers to the impact of the charging station volume ratio on the management strategy during this charging process. The charging station volume ratio can be determined based on the ratio of the number of charging guns in the charging state to the total number of charging guns in the charging station. The larger the charging station volume ratio, the more charging guns are in work and the tighter the charging resources are. In some embodiments, when the charging station volume ratio is less than a preset threshold (such as 60%), the charging station volume ratio strategy value is 1, otherwise it is 0. In some embodiments of this specification, considering the charging station volume ratio strategy can ensure the necessity of occupancy charges, that is, occupancy fees are only charged when charging resources are tight, and when charging resources are sufficient, occupancy fees are waived, which can improve user experience.

[0111] A preset decision algorithm refers to a pre-set method or approach for calculating the strategic factors. A correction factor refers to a factor used to adjust the management strategy.

[0112] In some embodiments, the management platform 230 may execute a preset decision algorithm based on one or more policy factors to determine the correction factor.

[0113] Exemplarily, the preset decision algorithm may be as shown in the following formula (1). R A-S = U A-S | C A-S | E A-S | P A-S (1) Among them, R A-S represents the correction factor, U A-S represents the user behavior strategy, C A-S Indicates charging abnormality strategy, E A-S Indicates the device abnormality policy, P A-S Indicates the charging station volume ratio strategy; the symbol | indicates bitwise OR calculation, that is, when U A-S、C A-S 、E A-S 、P A-S When any one or more of the values ​​are 1, R A-S The value of is 1.

[0114] When the correction factor is 1, it can be determined that the adjusted management policy is invalid for this seat charge billing, and the fee bill can be canceled or a refund can be performed; when the correction factor is 0, it can be determined that the adjusted management policy is valid for this seat charge billing.

[0115] The management platform 230 may execute the adjusted management policy. For example, the management platform 230 may determine whether to charge a seat occupancy fee based on the adjusted management policy.

[0116] In some embodiments of the present specification, the management policy is adjusted through a policy algorithm, which can further improve the accuracy of the occupancy situation, and at the same time ensure and improve the accuracy and necessity of the occupancy fee collection, thereby enhancing user satisfaction.

[0117] The vehicle charging station management system provided in some embodiments of this specification determines the type of occupancy event based on the charging status instructions generated by the charging device and manages the charging piles according to the type of occupancy event. The convenient sending and receiving of instructions can improve the effectiveness of charging station management. Furthermore, different management strategies are formulated based on the type of occupancy event to ensure the accuracy and rationality of occupancy charges, better address the charging occupancy issue, and ensure the charging experience of charging users.

[0118] Figure 3 This is an exemplary diagram of determining the relationship between the type of a placeholder event and a charging status instruction according to some embodiments of this specification.

[0119] The camera device and the charging pile can both report instructions to the management platform so that the management platform can determine the corresponding parking space occupancy event type. In this embodiment, the vehicle charging management is recorded in the form of parking space usage records, but this is for illustrative purposes only and can also be recorded in other ways, such as key-value pairs, etc. This specification is not limited to this.

[0120] S1, the target vehicle drives into the charging parking space.

[0121] When a target vehicle enters the charging parking space, the camera device can identify the target vehicle and determine the vehicle information of the target vehicle. At this time, the charging pile is in an idle state.

[0122] The camera device can send a vehicle entry command (C-0 command) to the management platform, which may include the target vehicle's vehicle information. Upon receiving the vehicle entry command, the management platform retrieves the "parking space usage record" based on the target vehicle's vehicle information and the vehicle entry command, records the start time of the parking space usage record, and determines the type of parking space occupation event as occupation start.

[0123] S2, the target vehicle starts charging.

[0124] After the target vehicle begins charging, the charging station sends a charging status command to the management platform. For example, the charging gun can send a command (108-3) to the management platform to start charging the target vehicle. The management platform records the charging start time of the target vehicle based on the 108-3 command. At the same time, the management platform determines the type of occupancy event as "occupied charging" based on the 108-3 command.

[0125] S3, charging of the target vehicle is completed.

[0126] After the target vehicle completes charging, the charging station can send a charging status instruction of the target vehicle to the management platform. For example, the charging station can send a 108-4 instruction to the management platform. The management platform records the charging end time of the target vehicle based on the 108-4 instruction and determines the type of the occupied space event as free space.

[0127] S4, the target vehicle is plugged in but not charging.

[0128] In some embodiments, after the target vehicle has finished charging, it may still be in the charging space and the charging station may not be unplugged. During this period, the charging station may periodically send a 104-1 instruction to the management platform. The 104-1 instruction indicates that the charging station is plugged in but not charging.

[0129] In some embodiments, when the management platform continues to receive the 104-1 instruction but does not receive the gun draw instruction (108-2 instruction) / charging gun idle instruction (104-0 instruction), the management platform can determine the length of time from the target vehicle occupying a free space to the current time based on the time the instruction is received.

[0130] To improve user experience, a free parking timeout period (e.g., X min) can be preset. That is, when the duration of a charging station being occupied but not charging is less than the free parking timeout period, the user can be prompted to move their vehicle based on the corresponding management policy, for example.

[0131] In some embodiments, the free time for occupying a space may include a first time length of X1 min and a second time length of X2 min. When the vehicle occupies a space for less than X1 min, no reminder will be given to move the vehicle. When the occupancy time reaches X2 min, the management platform may urge the owner of the target vehicle to move to avoid incurring space occupation fees as much as possible.

[0132] In some embodiments, when the occupancy time of the target vehicle after charging is completed exceeds the free occupancy time, the management platform may determine that the type of the occupancy event is changed to occupancy billing.

[0133] S5, the charging gun is pulled out.

[0134] When the charging gun is unplugged, the charging pile sends a gun unplugging command (108-2 command) to the management platform. The management platform determines that the type of the occupancy event has changed to the end of occupancy through the 108-2 command, and at the same time ends the occupancy billing, and determines the total occupancy charge time and the occupancy order amount.

[0135] S6, the target vehicle leaves the charging parking space.

[0136] The camera device detects the target vehicle leaving the charging space and sends a vehicle departure instruction (C-1 instruction) to the management platform. After receiving the vehicle departure instruction, the management platform records the end time of the parking space usage record based on the instruction and determines the end of the parking space usage record. In some embodiments, the management platform can store this parking space usage record as historical parking space occupancy information for the target vehicle.

[0137] Figure 4 This is an exemplary structural block diagram of the management platform of the vehicle charging station management system according to some embodiments of this specification. Figure 4 As shown, the management platform 230 may include a data input module 431 , an analysis module 432 , an image acquisition module 433 , and a policy determination module 434 .

[0138] The data input module 331 is a module for the management platform to obtain data.

[0139] The data input module 431 is configured to input data to the analysis module 432. In some embodiments, the data input module can input charging information, device status information, device abnormality information, historical occupancy information, etc. into the analysis module 432.

[0140] Device status information refers to the status information of devices such as charging piles and charging guns, including whether the charging pile is in idle state or occupied state.

[0141] Device anomaly information refers to abnormalities in devices such as charging guns, charging piles, and cameras. For example, a charging gun failure or a camera failure. In some embodiments, device anomaly information can be obtained through regular device testing and pre-stored. For more information on charging information and historical placeholder information, please refer to the relevant sections above.

[0142] In some embodiments, the data input module 431 can obtain data (such as charging information, device status information, device abnormality information, historical occupancy information, and other data / information) through other components in the vehicle charging station management system (such as cameras, charging piles, terminals 140, storage devices 160).

[0143] The analysis module 432 is a module used by the management platform to analyze the type of placeholder events.

[0144] In some embodiments, the management platform can determine the type of the placeholder event through the analysis module 432. For more information on determining the type of the placeholder event, please refer to Figure 2 、 Figure 3 wait.

[0145] The image acquisition module 433 is a module used by the management platform to acquire images of the charging parking space within the duration of the occupancy event.

[0146] In some embodiments, the management platform can obtain the image of the charging parking space during the duration of the occupancy event based on the image acquisition module 433. For more information on obtaining the image of the charging parking space, please refer to Figure 2 、 Figure 3 wait.

[0147] The policy determination module 434 is a module used by the management platform to determine management policies.

[0148] In some embodiments, the policy determination module 434 is configured to determine a management policy based on the charging space image and the type of the occupancy event.

[0149] In some embodiments, the strategy determination module 434 is further configured to execute a preset decision algorithm based on one or more strategy factors to determine a correction factor; adjust the management strategy based on the correction factor to determine the adjusted management strategy. In some embodiments, the strategy factors include one or more of user behavior strategy, charging anomaly strategy, device anomaly strategy, and charging station volume rate strategy. For more information on determining and adjusting the management strategy, please refer to Figure 2 .

[0150] Figure 5 is an exemplary flow chart of a vehicle charging station management method according to some embodiments of this specification. In some embodiments, process 500 may be executed by a processing device (e.g., processor 150). Figure 5 As shown, process 500 includes the following steps.

[0151] Step 510: Determine the identity information of the target vehicle entering the charging parking space of the station.

[0152] In some embodiments, the camera device can identify the target vehicle entering the charging parking space at the station, and further determine the identity information of the target vehicle through algorithms such as image recognition. For more information on related content, please refer to Figure 2 .

[0153] Step 520 , obtaining the charging status of the target vehicle and generating a charging status instruction.

[0154] In some embodiments, the charging station can obtain the charging status of the target vehicle and generate a charging status instruction. For more information on related content, please refer to Figure 2 .

[0155] Step 530 : Determine the type of the placeholder event based on the identity information and / or the charging status instruction.

[0156] In some embodiments, the management platform can determine the type of the placeholder event based on the identity information and / or the charging status instruction. For more details on the relevant content, please refer to the relevant part above, such as Figures 2 to 4 .

[0157] In some embodiments, the type of the occupancy event includes one or more of occupancy start, occupancy charging, occupancy free, occupancy billing, and occupancy end.

[0158] Step 540: Execute a corresponding management policy based at least on the type of the placeholder event.

[0159] In some embodiments, the management platform may determine a corresponding management policy based at least on the type of the placeholder event, and execute the management policy.

[0160] In some embodiments, the management platform may further obtain an image of the charging parking space during the duration of the occupancy event; determine a management strategy based on the image of the charging parking space and the type of the occupancy event; and execute the management strategy.

[0161] In some embodiments, the management platform may also execute a preset decision algorithm based on one or more policy factors to determine a correction factor; adjust the management policy based on the correction factor to determine an adjusted management policy; and execute the adjusted management policy.

[0162] In some embodiments, the policy factors include one or more of a user behavior policy, a charging anomaly policy, a device anomaly policy, and a charging station capacity policy.

[0163] For more information about the above, please refer to the relevant sections above. Figures 2 to 4 .

[0164] Figure 6 This is an exemplary module diagram of a vehicle charging station management system according to other embodiments of this specification. Figure 6As shown, the vehicle charging station management system 600 includes an identification module 610 , an acquisition module 620 , and a determination module 630 .

[0165] The identification module 610 is configured to identify a target vehicle entering a charging parking space at the station, and send vehicle information of the target vehicle to the management platform.

[0166] The acquisition module 620 is configured to acquire the charging status of the target vehicle and generate a charging status instruction.

[0167] The determination module 630 is configured to determine the type of the occupancy event based on the identity information of the target vehicle and / or the charging status instruction, and to execute a corresponding management strategy based at least on the type of the occupancy event.

[0168] In some embodiments, the type of the occupancy event includes one or more of occupancy start, occupancy charging, occupancy free, occupancy billing, and occupancy end.

[0169] In some embodiments, the determination module 630 is further configured to obtain an image of the charging parking space during the duration of the occupancy event; determine the management strategy based on the image of the charging parking space and the type of the occupancy event; and execute the management strategy.

[0170] In some embodiments, the determination module 630 is further configured to intercept and obtain the charging parking space image from the video stream corresponding to the duration of the occupancy event captured by the camera device. For more details on the relevant content, please refer to the relevant part above, such as Figure 3 、 Figure 4 wait.

[0171] In some embodiments, the determination module 630 is further configured to execute a preset decision algorithm based on one or more policy factors to determine a correction factor; adjust the management policy based on the correction factor to determine an adjusted management policy; and execute the adjusted management policy.

[0172] In some embodiments, the policy factors include one or more of a user behavior policy, a charging anomaly policy, a device anomaly policy, and a charging station volume ratio policy.

[0173] In some embodiments, the determination module 630 is further configured to: obtain a preset correspondence, wherein the preset correspondence includes a mapping relationship between the state of the charging pile and the type of the occupancy event; and determine the type of the occupancy event based on the preset correspondence, the vehicle information and / or the charging status instruction.

[0174] For a detailed description of the functions of the modules of the vehicle charging station management system 600 shown above, please refer to the relevant parts later in this specification, for example, Figures 2 to 5 and related instructions.

[0175] It should be noted that the above description of the vehicle charging station management system 600 and its modules is for convenience only and does not limit this specification to the scope of the embodiments. Figure 6 The identification module 610, acquisition module 620, and determination module 630 disclosed in the specification may be different modules in a system, or a single module may implement the functions of two or more of the aforementioned modules. For example, the modules may share a storage module, or each module may have its own storage module. Such variations are within the scope of protection of this specification.

[0176] While the basic concepts have been described above, it will be apparent to those skilled in the art that the detailed disclosure is merely illustrative and does not limit this specification. Although not explicitly stated herein, various modifications, improvements, and revisions to this specification may be made by those skilled in the art. Such modifications, improvements, and revisions are suggested in this specification and remain within the spirit and scope of the exemplary embodiments of this specification.

[0177] This specification also uses specific terms to describe the embodiments of this specification. Terms such as "one embodiment," "an embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that the mention of "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different places in this specification does not necessarily refer to the same embodiment.

[0178] Similarly, it should be noted that, in order to simplify the description of this specification and facilitate understanding of one or more embodiments, the foregoing description of the embodiments of this specification sometimes combines multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this specification requires more features than those recited in the claims. In fact, the features of an embodiment may be fewer than all the features of the individual embodiments disclosed above.

[0179] Finally, it should be understood that the embodiments described in this specification are intended only to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly described and illustrated in this specification.

Claims

1. A vehicle charging station management system, characterized in that: The system includes a management platform, a camera device, and at least one charging pile, wherein: The camera device is configured to identify a target vehicle entering a charging parking space at the station and send vehicle information of the target vehicle to the management platform; The at least one charging pile is configured to obtain a charging status of the target vehicle and generate a charging status instruction, and send the charging status instruction to the management platform; The management platform is configured to determine a type of an occupancy event based on the vehicle information and / or the charging status instruction, and to execute a corresponding management strategy based at least on the type of the occupancy event.

2. The system according to claim 1, wherein The type of the seat occupation event includes one or more of seat occupation start, seat occupation charging, seat occupation free, seat occupation billing and seat occupation end.

3. The system according to claim 1, wherein The management platform is further configured to: Acquire an image of the charging parking space during the duration of the occupancy event; determining the management strategy based on the charging parking space image and the type of the occupancy event; The management policy is executed.

4. The system according to claim 3, wherein: The management platform is further configured to: The charging parking space image is obtained by intercepting a video stream corresponding to the duration of the occupancy event captured by the camera device.

5. The system according to claim 1, wherein: The management platform is further configured to: executing a preset decision algorithm based on one or more strategic factors to determine a correction factor; Adjusting the management strategy based on the correction factor to determine an adjusted management strategy; The adjusted management strategy is implemented.

6. The system according to claim 5, wherein: The strategy factors include one or more of user behavior strategy, charging anomaly strategy, device anomaly strategy and charging station volume ratio strategy.

7. The system according to claim 1, wherein: The management platform is further configured to: Obtaining a preset corresponding relationship, where the preset corresponding relationship includes a mapping relationship between the state of the charging pile and the type of the occupancy event; The type of the occupancy event is determined based on the preset correspondence, the vehicle information and / or the charging status instruction.

8. The system according to claim 1, wherein: In order to execute a corresponding management policy based on the type of the placeholder event, the management platform is further configured to: Determining a management strategy corresponding to the type of the placeholder event; generating a management instruction for executing the management policy; The management instruction is sent to the target device so that the preset operation is performed according to the management instruction through the target device; wherein the target device includes at least one of the user terminal of the target vehicle, the gate system of the charging station and the camera device.

9. A vehicle charging station management method, characterized in that: The method comprises: Determine the identity information of the target vehicle entering the charging parking space at the station; Obtaining a charging status of the target vehicle and generating a charging status instruction; determining a type of the placeholder event based on the identity information and / or the charging status instruction; A corresponding management policy is executed based at least on the type of the placeholder event.

10. The method according to claim 9, wherein The type of the seat occupation event includes one or more of seat occupation start, seat occupation charging, seat occupation free, seat occupation billing and seat occupation end.

11. The method according to claim 9, wherein The executing a corresponding management policy based at least on the type of the placeholder event includes: Acquire an image of the charging parking space during the duration of the occupancy event; determining the management strategy based on the charging parking space image and the type of the occupancy event; The management policy is executed.

12. The method according to claim 9, wherein The executing a corresponding management policy based at least on the type of the placeholder event includes: executing a preset decision algorithm based on one or more strategic factors to determine a correction factor; Adjusting the management strategy based on the correction factor to determine an adjusted management strategy; The adjusted management strategy is implemented.

13. The method according to claim 12, wherein: The strategy factors include one or more of user behavior strategy, charging anomaly strategy, device anomaly strategy and charging station volume ratio strategy.

14. A vehicle charging station management system, characterized in that: The system comprises: an identification module configured to identify a target vehicle entering a charging parking space at the station and send vehicle information of the target vehicle to a management platform; an acquisition module, configured to acquire the charging status of the target vehicle and generate a charging status instruction; The determination module is configured to determine a type of the occupancy event based on the identity information of the target vehicle and / or the charging state instruction, and to execute a corresponding management strategy based at least on the type of the occupancy event.

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