A fast charging method and system for battery-powered vehicles based on historical data

Abstract

The present invention is applicable to the field of charging management technology, and particularly relates to a method and system for fast charging of battery vehicles based on historical data. The method includes: constructing a device detection local area network; establishing a data connection with a data communication module in the battery vehicle to obtain historical charging data sent by the data communication module; extracting features from the historical charging data to obtain charging feature data, and performing an online query based on the charging feature data to determine the identity information of the current battery vehicle; sending a charging request to a mobile device to control the power supply of the corresponding socket, and continuously performing identity verification during the power supply process. When charging, the present invention directly establishes a data connection between the battery vehicle and the charging pile, uses historical data as the basis for verification to determine the identity of the battery vehicle, thereby realizing the process of automatic payment. Moreover, during the charging process, identity verification can be continuously performed, avoiding the occurrence of unauthorized charging, ensuring the safety of charging, and improving the user experience.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging management, and particularly relates to a method and system for quickly charging an electric vehicle based on historical data. Background Art

[0002] With the development of society, electric vehicles have become an essential means of transportation for many people, and the flexibility of electric vehicles can greatly improve the efficiency of road traffic.

[0003] Currently, the main types of electric vehicles are lithium batteries and lead-acid batteries. Electric vehicles in cities are mainly charged on fixed charging piles. When charging, it is necessary to manually scan the code and select a charging pile, and there may also be cases of unauthorized charging during the charging process, which affects the charging experience. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for quickly charging an electric vehicle based on historical data, aiming to solve the problems that when charging, it is necessary to manually scan the code and select a charging pile, and there may also be cases of unauthorized charging during the charging process, which affects the charging experience.

[0005] The present invention is implemented as follows. A method for quickly charging an electric vehicle based on historical data, the method comprising:

[0006] Construct a device detection local area network, the device detection local area network includes a plurality of wireless communication modules and sockets, and a detection device is provided in the socket for determining whether a plug is inserted into the current socket;

[0007] Establish a data connection with the data communication module in the electric vehicle to obtain historical charging data sent from the data communication module;

[0008] Extract features from the historical charging data to obtain charging feature data, and perform an online query based on the charging feature data to determine the identity information of the current electric vehicle;

[0009] Query the mobile device bound to the current electric vehicle, send a charging request to the mobile device, and after obtaining user authorization, control the corresponding socket to supply power, and continuously perform identity verification during the power supply process.

[0010] Preferably, the step of establishing a data connection with the data communication module in the electric vehicle to obtain historical charging data sent from the data communication module specifically includes:

[0011] Query the status of the detection device. When it is detected that a plug is inserted, determine the position of the corresponding socket, and perform a wireless signal detection through the wireless communication module;

[0012] Locate the battery vehicle based on the device detection local area network, determine the corresponding wireless signal of the battery vehicle, and broadcast the communication address of the current battery vehicle outward;

[0013] Receive the historical charging data broadcast outward by the corresponding data communication module of the battery vehicle and store it.

[0014] Preferably, the steps of extracting features from the historical charging data to obtain charging feature data and querying the network based on the charging feature data to determine the identity information of the current battery vehicle specifically include:

[0015] Retrieve the historical charging data, mark it in a two-dimensional coordinate system, and connect it with a smooth curve to obtain a historical charging curve;

[0016] Perform data sampling on the historical charging curve at a preset sampling interval to obtain multiple sampling coordinates, and generate a sampling string by comparing adjacent sampling coordinates;

[0017] Convert the format of the sampling string to obtain charging feature data, query the database preset in the cloud server according to the charging feature data to determine the identity information of the battery vehicle, and the identity information of the battery vehicle is determined by a unique identification code.

[0018] Preferably, the steps of querying the mobile device bound to the current battery vehicle, sending a charging request to the mobile device, controlling the power supply of the corresponding socket after obtaining user authorization, and continuously performing identity verification during the power supply process specifically include:

[0019] Send a charging request to the mobile device according to the identity information of the battery vehicle, and the charging request includes the location information, number information, and tariff information of the charging pile;

[0020] Receive the authorization instruction sent by the mobile device, supply power to the corresponding socket, and start charging;

[0021] During the power supply process, continuously receive the verification data sent by the data communication module, verify the identity of the battery vehicle in real time based on the verification data, and interrupt the power supply when the identity verification fails.

[0022] Preferably, when starting to charge, the data communication module obtains real-time charging data, extracts real-time charging features based on the real-time charging data, and spreads the real-time charging features outward through wireless broadcast. The wireless communication module on the charging pile checks according to the real-time charging features and the charging data corresponding to the charging pile. If they match, it is determined that the verification is passed.

[0023] Another object of the present invention is to provide a fast charging system for battery vehicles based on historical data, and the system includes:

[0024] A local area network construction module for constructing a device detection local area network, which includes multiple wireless communication modules and sockets. A detection device is provided in the socket, and the detection device is used to determine whether a plug is inserted into the current socket;

[0025] A data communication module for establishing a data connection with the data communication module in the battery vehicle and receiving historical charging data sent from the data communication module;

[0026] An identity recognition module for extracting features from the historical charging data to obtain charging feature data, and querying the network based on the charging feature data to determine the identity information of the current battery vehicle;

[0027] A charging management module for querying the mobile device bound to the current battery vehicle, sending a charging request to the mobile device, controlling the corresponding socket to supply power after obtaining user authorization, and continuously performing identity verification during the power supply process.

[0028] Preferably, the data communication module includes:

[0029] A signal detection unit for querying the status of the detection device, determining the corresponding socket position when a plug is detected, and performing wireless signal detection through the wireless communication module;

[0030] A vehicle positioning unit for positioning the battery vehicle based on the device detection local area network, determining the corresponding wireless signal of the battery vehicle, and broadcasting the communication address of the current battery vehicle;

[0031] A data broadcasting unit for receiving and storing the historical charging data broadcasted outward by the corresponding data communication module of the battery vehicle.

[0032] Preferably, the identity recognition module includes:

[0033] A curve construction unit for retrieving historical charging data, marking it in a two-dimensional coordinate system, and connecting it with a smooth curve to obtain a historical charging curve;

[0034] A curve sampling unit for sampling the historical charging curve at a preset sampling interval to obtain multiple sampling coordinates, and generating a sampling string by comparing adjacent sampling coordinates;

[0035] An identity matching unit for converting the format of the sampling string to obtain charging feature data, querying the database preset in the cloud server according to the charging feature data, and determining the identity information of the battery vehicle. The identity information of the battery vehicle is determined by a unique identification code.

[0036] Preferably, the charging management module includes:

[0037] A data request unit, configured to send a charging request to a mobile device according to the identity information of the battery-powered vehicle, where the charging request includes the location information, number information, and tariff information of the charging pile;

[0038] A power supply control unit, configured to receive an authorization instruction sent from the mobile device, supply power to the corresponding socket, and start charging;

[0039] A real-time verification unit, configured to, during the power supply process, receive verification data sent from the data communication module in real time, verify the identity of the battery-powered vehicle based on the verification data in real time, and interrupt the power supply when the identity verification fails.

[0040] Preferably, when starting to charge, the data communication module obtains real-time charging data, extracts real-time charging characteristics based on the real-time charging data, and propagates the real-time charging characteristics through wireless broadcast. The wireless communication module on the charging pile verifies according to the real-time charging characteristics and the charging data corresponding to the charging pile. If they match, it is determined that the verification is passed.

[0041] The fast charging method for battery-powered vehicles based on historical data provided by the present invention directly establishes a data connection between the battery-powered vehicle and the charging pile during charging, uses historical data as the basis for verification to determine the identity of the battery-powered vehicle, thereby realizing the process of automatic payment. And during the charging process, identity verification can be continuously performed, avoiding the occurrence of unauthorized charging, ensuring the safety of charging, and improving the user experience. Description of the Drawings

[0042] Figure 1 It is a flowchart of the fast charging method for battery-powered vehicles based on historical data provided by an embodiment of the present invention;

[0043] Figure 2 It is a flowchart of the step of establishing a data connection with the data communication module in the battery-powered vehicle and receiving historical charging data sent from the data communication module provided by an embodiment of the present invention;

[0044] Figure 3 It is a flowchart of the step of extracting characteristics from historical charging data to obtain charging characteristic data, and querying the network based on the charging characteristic data to determine the identity information of the current battery-powered vehicle provided by an embodiment of the present invention;

[0045] Figure 4 It is a flowchart of the step of querying the mobile device bound to the current battery-powered vehicle, sending a charging request to the mobile device, controlling the corresponding socket to supply power after obtaining user authorization, and continuously performing identity verification during the power supply process provided by an embodiment of the present invention;

[0046] Figure 5 It is an architecture diagram of a fast charging system for battery-powered vehicles based on historical data provided by an embodiment of the present invention;

[0047] Figure 6 It is an architecture diagram of a data communication module provided by an embodiment of the present invention;

[0048] Figure 7 It is an architecture diagram of an identity recognition module provided by an embodiment of the present invention;

[0049] Figure 8 It is an architecture diagram of a charging management module provided by an embodiment of the present invention. Detailed implementation manners

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0051] As Figure 1 shown, it is a flowchart of a fast charging method for battery vehicles based on historical data provided by an embodiment of the present invention, and the method includes:

[0052] S100, construct a device detection local area network, where the device detection local area network includes multiple wireless communication modules and sockets, and a detection device is arranged in the socket for determining whether a plug is inserted into the current socket.

[0053] In this step, construct a device detection local area network. A charging pile includes multiple sockets, and each socket can be used for charging. A detection device is arranged inside the socket. The detection device can be a distance sensor or a microswitch, etc., for determining whether a plug is inserted into the socket. A charging control panel is arranged on the charging pile, and a two-dimensional code or an NFC module is arranged on the charging control panel for manual charging. A wireless communication module is arranged inside the charging control panel. The wireless communication module can be Bluetooth communication or WIFI communication for data interaction with the battery vehicle. The current battery vehicles are becoming more and more intelligent, and the battery vehicles have a Bluetooth module or other wireless communication functions.

[0054] S200, establish a data connection with the data communication module in the battery vehicle, and obtain historical charging data sent by the data communication module.

[0055] In this step, a data connection is established with the data communication module in the battery vehicle. To determine the location of the battery vehicle, when the charger plug of the battery vehicle is inserted into the socket, it will be detected by the detection device. When it is determined that there is a plug inserted into the corresponding socket, wireless signal detection is performed through the wireless communication module. During this process, the location of the current battery vehicle is located through the device detection local area network, and the location of the data communication module on the battery vehicle is used as the location of the battery vehicle. After determining the location of the battery vehicle, the battery vehicle sends out historical charging data through the data communication module. That is, during the charging process of the battery vehicle, the data of the previous charging process will be stored, which is the historical charging data and is used for identity recognition and verification, while the wireless communication module on the charging pile is used to receive the historical charging data.

[0056] S300. Extract features from the historical charging data to obtain charging feature data, and conduct an online query based on the charging feature data to determine the identity information of the current battery vehicle.

[0057] In this step, features are extracted from the historical charging data. When the battery vehicle is charging, the charging pile also records the charging data of the battery vehicle. When recording, it is recorded by extracting features, and the extracted features are stored in the cloud server. When receiving the historical charging data, similarly, features are also extracted from the historical charging data to obtain charging feature data, and it is matched with the features in the cloud server. The identity of the current battery vehicle is determined according to the matching relationship between the features. Each battery vehicle is bound to a corresponding mobile device.

[0058] S400. Query the mobile device bound to the current battery vehicle, send a charging request to this mobile device, and after obtaining user authorization, control the corresponding socket to supply power, and continuously perform identity verification during the power supply process.

[0059] In this step, the mobile device bound to the current battery vehicle is queried. A battery vehicle is allowed to be bound to one mobile device. Therefore, when charging, a charging request is sent to the mobile device through the cloud server. At this time, the user is informed of the current charging vehicle, vehicle information, charging pile location, charging pile number, and tariff information, etc. After the user confirms, the user can directly authorize through the mobile device. In this process, the process of bill payment is automatically completed. If the user gives pre-authorization, the mobile device is allowed to directly authorize the charging pile to achieve the purpose of automatic charging, saving the steps of the user scanning the code and making payments. And in the present invention, during the power supply process, in order to avoid the phenomenon of unauthorized charging, during the charging process, real-time identity verification is performed on the charging battery vehicle, and when the verification fails, the power supply is stopped.

[0060] Such as Figure 2As shown, as a preferred embodiment of the present invention, the step of establishing a data connection with the data communication module in the battery vehicle and obtaining the historical charging data sent by the data communication module specifically includes:

[0061] S201, query the status of the detection device, determine the corresponding socket position when the plug is detected to be inserted, and perform wireless signal detection through the wireless communication module.

[0062] In this step, the status of the detection device is queried. When the plug of the battery vehicle charger is inserted into the socket, the detection device will detect it. At this time, the charging pile determines the socket currently plugged in. At this time, it is determined that there is an electric vehicle that needs to be charged. The wireless communication module in the charging pile is started and begins to detect nearby wireless signals, such as WiFi signals or Bluetooth signals.

[0063] S202, positioning the battery vehicle based on the device detection local area network, determining the corresponding wireless signal of the battery vehicle, and broadcasting the communication address of the current battery vehicle to the outside.

[0064] In this step, the battery vehicle is positioned based on the device detection local area network. Specifically, a charging pile is equipped with at least two groups of wireless communication modules. Each wireless signal is detected simultaneously by the wireless communication module, and the distance value between the source of the wireless signal and each wireless communication module is calculated based on the strength value of the wireless signal, and the position of the battery vehicle is determined according to the relative position relationship between the wireless communication modules and the distance value. Specifically, a three-dimensional coordinate system is constructed, and each wireless communication module is marked in the three-dimensional coordinate system. The distance value R between each wireless communication module and the battery is determined, and a spherical area is constructed with the wireless communication module as the center and the distance value as the radius. The center of the overlapping part of the spherical area is regarded as the position of the battery vehicle. The position of the battery vehicle is determined according to the position of the corresponding socket, and the communication address of the current battery vehicle is broadcasted to the outside. When the built-in data communication module of the battery vehicle detects its own communication address, it determines that the positioning is successful and starts data transmission.

[0065] S203, receiving and storing the historical charging data broadcasted from the data communication module corresponding to the battery vehicle.

[0066] In this step, historical charging data broadcasted from the data communication module corresponding to the battery vehicle is received. When the battery vehicle is charging, the real-time charging indicators are recorded, such as the real-time charging power, thereby obtaining multiple information recording coordinates. For example, at time A, the charging power is a. Then, when the battery vehicle is transmitting data, it broadcasts the historical charging data. At this time, the above data is recorded through the wireless communication module in the charging pile. At this point, the wireless communication module obtains complete historical charging data and temporarily stores the above historical charging data.

[0067] As Figure 3 shown, as a preferred embodiment of the present invention, the steps of extracting features from historical charging data to obtain charging feature data and querying the network based on the charging feature data to determine the identity information of the current battery vehicle specifically include:

[0068] S301, retrieve historical charging data, mark it in a two-dimensional coordinate system, and connect it with a smooth curve to obtain a historical charging curve.

[0069] In this step, retrieve historical charging data and construct a two-dimensional coordinate system. Since the historical charging data consists of multiple information recording coordinates, mark them in the two-dimensional coordinate system. The above-mentioned information recording coordinates will become discrete points in the two-dimensional coordinate system and are connected by a smooth curve to obtain a historical charging curve.

[0070] S302, perform data sampling on the historical charging curve at a preset sampling interval to obtain multiple sampling coordinates, and generate a sampling string by comparing adjacent sampling coordinates.

[0071] In this step, perform data sampling on the historical charging curve at a preset sampling interval. Perform data sampling according to the preset sampling interval. For example, if the sampling interval is 20 ms, obtain multiple sampling coordinates from the historical charging curve according to this sampling interval. The abscissa of the sampling coordinates is the time value, and the ordinate is the charging power. Compare the ordinates of two adjacent groups of sampling coordinates, that is, compare the sampling coordinates (n, M1) and (n + 1, M2). If M2 is greater than M1, the sampling character is 1, indicating that the charging power rises here. If M2 is not greater than M1, the sampling character is 0, indicating that the charging power does not rise here. Each sampling coordinate will correspond to a sampling character, and the sampling characters are spliced to obtain a sampling string.

[0072] S303, perform format conversion on the sampling string to obtain charging feature data, query the database preset in the cloud server according to the charging feature data, determine the identity information of the battery vehicle, and the identity information of the battery vehicle is determined by a unique identification code.

[0073] In this step, perform format conversion on the sampling string, such as converting it to decimal or hexadecimal. After conversion, obtain the charging feature data. During the charging process of the battery vehicle, the charging pile imports the current charging data into the cloud server, extracts the sampling string in the same way, and further extracts the charging feature data. By comparing the charging feature data generated in real time with the charging feature data in the cloud server, calculate the coincidence rate between the two. For example, when the coincidence rate reaches the preset value, it is determined that a matching item has been found, and the identity of the current battery vehicle is determined according to the records in the cloud server, and the unique identification code is extracted.

[0074] As Figure 4 shown, as a preferred embodiment of the present invention, query the mobile device bound to the current battery vehicle, send a charging request to the mobile device, and after obtaining user authorization, control the corresponding socket to supply power. During the power supply process, continuous identity verification steps are specifically included:

[0075] S401, send a charging request to the mobile device according to the identity information of the battery vehicle. The charging request includes the location information, number information, and tariff information of the charging pile.

[0076] In this step, send a charging request to the mobile device according to the identity information of the battery vehicle. Since one battery vehicle is bound to one mobile device, the mobile device can be queried through the cloud server and the corresponding charging request is sent to it to seek authorization from the mobile device. Of course, the user can perform pre-authorization, that is, when receiving the charging request, directly agree, send an authorization instruction, and inform the user.

[0077] S402, receive the authorization instruction sent from the mobile device, supply power to the corresponding socket, and start charging.

[0078] In this step, receive the authorization instruction sent from the mobile device. When the charging pile receives the authorization instruction, it starts to supply power to the corresponding socket. At this time, the battery vehicle starts to charge. During this process, the charging pile records the charging data of this time. Similarly, the battery vehicle also records the charging data at this time.

[0079] S403, during the power supply process, receive the verification data sent from the data communication module in real time, and based on the verification data, check the identity of the battery vehicle in real time. When the identity check fails, interrupt the power supply.

[0080] In this step, during the power supply process, receive the verification data sent from the data communication module in real time. The data communication module obtains the real-time charging data. The real-time charging data is stored in the form of coordinates, and its content is the same as the information recording coordinates. The time value is the abscissa, and the real-time charging power is the ordinate. Compare the magnitudes of two adjacent sets of real-time charging powers V1 and V2. If V2 is greater than V1, generate a real-time charging feature with a value of 1. If V2 is not greater than V1, generate a real-time charging feature with a value of 0. Propagate the real-time charging feature outward through wireless broadcasting. The wireless communication module on the charging pile checks according to the real-time charging feature and the charging data corresponding to the charging pile. If they match, it is determined that the verification is passed. If the verification fails continuously for multiple times, stop the power supply.

[0081] As Figure 5 shown, a battery vehicle fast charging system based on historical data provided by an embodiment of the present invention includes:

[0082] The local area network construction module 100 is used to construct a device detection local area network. The device detection local area network includes multiple wireless communication modules and sockets. A detection device is arranged in the socket, and the detection device is used to determine whether a plug is inserted into the current socket.

[0083] In this system, the local area network construction module 100 constructs a device detection local area network. A charging pile includes multiple sockets, and each socket can be used for charging. A detection device is arranged inside the socket. The detection device can be a distance sensor or a micro switch, etc., and is used to determine whether a plug is inserted into the socket. A charging control panel is arranged on the charging pile. A two-dimensional code or an NFC module is arranged on the charging control panel and is used for manual charging. A wireless communication module is arranged inside the charging control panel. The wireless communication module can be Bluetooth communication or WIFI communication and is used for data interaction with the battery car. The current battery cars are becoming more and more intelligent, and the battery cars have a Bluetooth module or other wireless communication functions.

[0084] The data communication module 200 is used to establish a data connection with the data communication module in the battery car and receive the historical charging data sent by the data communication module.

[0085] In this system, the data communication module 200 establishes a data connection with the data communication module in the battery car. In order to determine the position of the battery car, when the charger plug of the battery car is inserted into the socket, it will be detected by the detection device. When it is determined that a plug is inserted into the corresponding socket, wireless signal detection is carried out through the wireless communication module. During this process, the position of the current battery car is located through the device detection local area network, and the position of the data communication module on the battery car is used as the position of the battery car. After determining the position of the battery car, the battery car sends out historical charging data through the data communication module, that is, during the charging process of the battery car, the data of the previous charging process will be stored, which is the historical charging data and is used for identity recognition and verification, and the wireless communication module on the charging pile is used to receive the historical charging data.

[0086] The identity recognition module 300 is used to extract features from the historical charging data to obtain charging feature data, and query the network based on the charging feature data to determine the identity information of the current battery car.

[0087] In this system, the identity recognition module 300 extracts features from historical charging data. When the battery vehicle is charging, the charging pile also records the charging data of the battery vehicle. When recording, it records by extracting features and stores the extracted features in the cloud server. When receiving the historical charging data, similarly, it also extracts features from the historical charging data to obtain charging feature data, matches it with the features in the cloud server, and determines the identity of the current battery vehicle according to the matching relationship between the features. Each battery vehicle is bound to a corresponding mobile device.

[0088] The charging management module 400 is used to query the mobile device bound to the current battery vehicle, send a charging request to the mobile device, control the corresponding socket to supply power after obtaining user authorization, and continuously perform identity verification during the power supply process.

[0089] In this system, the charging management module 400 queries the mobile device bound to the current battery vehicle. A battery vehicle is allowed to be bound to one mobile device. Therefore, when charging, it sends a charging request to the mobile device through the cloud server. At this time, the mobile device informs the user of the vehicle currently being charged, vehicle information, charging pile location, charging pile number, and tariff information, etc. After the user confirms, the user can directly authorize through the mobile device. In this process, the process of bill payment is automatically completed. If the user gives pre-authorization, the mobile device is allowed to directly authorize the charging pile to achieve the purpose of automatic charging, saving the steps of the user scanning the code and making payments. And in the present invention, during the power supply process, in order to avoid the phenomenon of unauthorized charging, during the charging process, real-time identity verification is performed on the battery vehicle being charged. When the verification fails, the power supply is stopped.

[0090] As Figure 6 shown, as a preferred embodiment of the present invention, the data communication module 200 includes:

[0091] The signal detection unit 201 is used to query the status of the detection device, determine the corresponding socket position when detecting that the plug is inserted, and perform wireless signal detection through the wireless communication module.

[0092] In this module, the signal detection unit 201 queries the status of the detection device. When the plug of the battery vehicle charger is inserted into the socket, the detection device will detect it. At this time, the charging pile determines the socket currently inserted by the plug, and at this time it is determined that there is a battery vehicle that needs to be charged. The wireless communication module in the charging pile is activated and starts to detect the nearby wireless signals, such as detecting wifi signals or Bluetooth signals.

[0093] The vehicle positioning unit 202 is used to locate the battery vehicle based on the device detection local area network, determine the corresponding wireless signal of the battery vehicle, and broadcast the communication address of the current battery vehicle.

[0094] In this module, the vehicle positioning unit 202 locates the battery-powered vehicle based on the device detection local area network. Specifically, at least two sets of wireless communication modules are equipped in a charging pile. Each wireless signal is detected simultaneously through the wireless communication modules, and the distance values between the source of the wireless signal and each wireless communication module are calculated based on the intensity values of the wireless signals. Then, the position of the battery-powered vehicle is determined according to the relative position relationship between the wireless communication modules and the distance values. Specifically, a three-dimensional coordinate system is constructed, and each wireless communication module is marked in the three-dimensional coordinate system. The distance value R between each wireless communication module and the battery is determined. A spherical region is constructed with the wireless communication module as the center and the distance value as the radius. The center of the overlapping part of the spherical regions is regarded as the position of the battery-powered vehicle. According to the position of the corresponding socket, the position of the battery-powered vehicle is determined, and the communication address of the current battery-powered vehicle is broadcast outward. When the data communication module built into the battery-powered vehicle detects its own communication address, it determines that the positioning is successful and starts data transmission.

[0095] The data broadcasting unit 203 is configured to receive and store the historical charging data broadcast outward by the corresponding data communication module of the battery-powered vehicle.

[0096] In this module, the data broadcasting unit 203 receives the historical charging data broadcast outward by the corresponding data communication module of the battery-powered vehicle. When the battery-powered vehicle is charging, it records the real-time charging indicators, such as recording the real-time charging power, so as to obtain multiple information recording coordinates. For example, at time A, the charging power is a. Then, when the battery-powered vehicle performs data transmission, it broadcasts the historical charging data outward. At this time, the above data is recorded through the wireless communication module in the charging pile. Thus, the wireless communication module obtains the complete historical charging data and temporarily stores the above historical charging data.

[0097] As Figure 7 shown, as a preferred embodiment of the present invention, the identity recognition module 300 includes:

[0098] The curve construction unit 301 is configured to retrieve the historical charging data, mark it in a two-dimensional coordinate system, and connect it with a smooth curve to obtain a historical charging curve.

[0099] In this module, the curve construction unit 301 retrieves the historical charging data and constructs a two-dimensional coordinate system. Since the historical charging data is composed of multiple information recording coordinates, it is marked in the two-dimensional coordinate system. The above information recording coordinates will become discrete points in the two-dimensional coordinate system and are connected by a smooth curve, thereby obtaining a historical charging curve.

[0100] The curve sampling unit 302 is configured to perform data sampling on the historical charging curve at a preset sampling interval, obtain a plurality of sampling coordinates, and generate a sampling string by comparing adjacent sampling coordinates.

[0101] In this module, the curve sampling unit 302 performs data sampling on the historical charging curve at a preset sampling interval. Data sampling is performed according to the preset sampling interval. For example, if the sampling interval is 20 ms, a plurality of sampling coordinates are collected from the historical charging curve according to this sampling interval. The abscissa of the sampling coordinate is the time value, and the ordinate is the charging power. Compare the ordinates of two adjacent groups of sampling coordinates, that is, compare the sampling coordinates (n, M1) and (n + 1, M2). If M2 is greater than M1, the sampling character is 1, indicating that the charging power rises here. If M2 is not greater than M1, the sampling character is 0, indicating that the charging power does not rise here. Each sampling coordinate will correspond to a sampling character, and the sampling characters are concatenated to obtain a sampling string.

[0102] The identity matching unit 303 is configured to perform format conversion on the sampling string to obtain charging feature data, query a database preset in the cloud server according to the charging feature data, and determine the identity information of the battery vehicle. The identity information of the battery vehicle is determined by a unique identification code.

[0103] In this module, the identity matching unit 303 performs format conversion on the sampling string, such as converting it to decimal or hexadecimal. After conversion, charging feature data is obtained. During the charging process of the battery vehicle, the charging pile imports the current charging data into the cloud server, extracts the sampling string in the same way, and further extracts the charging feature data. By comparing the charging feature data generated in real time with the charging feature data in the cloud server, the coincidence rate between the two is calculated. For example, when the coincidence rate reaches a preset value, it is determined that a matching item has been found, and the identity of the current battery vehicle is determined according to the records in the cloud server, and the unique identification code is extracted.

[0104] As Figure 8 shown, as a preferred embodiment of the present invention, the charging management module 400 includes:

[0105] The data request unit 401 is configured to send a charging request to the mobile device according to the identity information of the battery vehicle. The charging request includes the location information, number information, and tariff information of the charging pile.

[0106] In this module, the data request unit 401 sends a charging request to the mobile device according to the identity information of the battery car. Since one battery car is bound to one mobile device, the mobile device can be queried through the cloud server, and the corresponding charging request is sent to it to seek authorization from the mobile device. Of course, the user can perform pre-authorization, that is, when receiving the charging request, directly agree, send an authorization instruction, and inform the user.

[0107] The power supply control unit 402 is used to receive the authorization instruction sent by the mobile device, supply power to the corresponding socket, and start charging.

[0108] In this module, the power supply control unit 402 receives the authorization instruction sent by the mobile device. When the charging pile receives the authorization instruction, it starts to supply power to the corresponding socket, and at this time the battery car starts to charge. During this process, the charging pile records the charging data of this time. Similarly, the battery car also records the charging data at this time.

[0109] The real-time verification unit 403 is used to receive the verification data sent by the data communication module in real time during the power supply process, and based on the verification data, verify the identity of the battery car in real time. When the identity verification fails, the power supply is interrupted.

[0110] In this module, during the power supply process, the real-time verification unit 403 receives the verification data sent by the data communication module in real time. The data communication module obtains the real-time charging data, and the real-time charging data is stored in the form of coordinates. Its content is the same as the information recording coordinates, with the time value as the abscissa and the real-time charging power as the ordinate. Compare the magnitudes of two adjacent groups of real-time charging powers V1 and V2. If V2 is greater than V1, generate a real-time charging feature with a value of 1. If V2 is not greater than V1, generate a real-time charging feature with a value of 0, and spread the real-time charging feature through wireless broadcast. The wireless communication module on the charging pile checks according to the real-time charging feature and the charging data corresponding to the charging pile. If they match, it is determined that the verification is passed. If the verification fails continuously for multiple times, the power supply is stopped.

[0111] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery vehicle fast charging method based on historical data, characterized in that: The method comprises: Constructing a device detection local area network, wherein the device detection local area network includes a plurality of wireless communication modules and sockets, wherein a detection device is provided in the socket, and the detection device is used to determine whether a plug is currently inserted in the socket; Establish a data connection with the data communication module in the battery car, and obtain the historical charging data sent by the data communication module; Query the status of the detection device, determine the corresponding socket position when the plug is detected, and perform wireless signal detection through the wireless communication module; Based on the device detection LAN, the battery car is located, the corresponding wireless signal of the battery car is determined, and the communication address of the current battery car is broadcasted externally; Receive and store the historical charging data broadcasted from the data communication module corresponding to the battery vehicle; Extract features from historical charging data to obtain charging feature data, perform online query based on the charging feature data, and determine the identity information of the current battery vehicle; Retrieve historical charging data, mark them in a two-dimensional coordinate system, and connect them with a smooth curve to obtain a historical charging curve; Sampling data of the historical charging curve according to a preset sampling interval to obtain a plurality of sampling coordinates, and generating a sampling character string by comparing adjacent sampling coordinates; Convert the sampled character string into a format to obtain charging characteristic data, query a database preset in a cloud server based on the charging characteristic data, and determine the identity information of the battery vehicle, where the identity information of the battery vehicle is determined by a unique identification code; Query the mobile device bound to the current battery vehicle, send a charging request to the mobile device, and after obtaining user authorization, control the corresponding socket to supply power. During the power supply process, continue to authenticate the identity; Sending a charging request to a mobile device according to the identity information of the battery vehicle, wherein the charging request includes the location information, number information and fee information of the charging pile; Receive the authorization instruction sent from the mobile device, supply power to the corresponding socket, and start billing; During the power supply process, the verification data sent from the data communication module is received in real time, and the identity of the battery vehicle is verified in real time based on the verification data. When the identity verification fails, the power supply is interrupted.

2. The battery vehicle fast charging method based on historical data according to claim 1 is characterized in that: When charging starts, the data communication module obtains real-time charging data, extracts real-time charging features based on the real-time charging data, and transmits the real-time charging features to the outside through wireless broadcasting. The wireless communication module on the charging pile verifies according to the real-time charging features and the charging data corresponding to the charging pile. If they match, the verification is determined to be successful.

3. A battery vehicle fast charging system based on historical data, characterized in that: The system comprises: A local area network construction module is used to construct a device detection local area network, wherein the device detection local area network includes a plurality of wireless communication modules and sockets, wherein a detection device is provided in the socket, and the detection device is used to determine whether a plug is currently inserted in the socket; A data communication module is used to establish a data connection with the data communication module in the battery car, and the historical charging data sent from the data communication module; The data communication module includes: A signal detection unit is used to query the status of the detection device, determine the corresponding socket position when the plug is detected, and perform wireless signal detection through the wireless communication module; The vehicle positioning unit is used to locate the battery vehicle based on the device detection local area network, determine the corresponding wireless signal of the battery vehicle, and broadcast the communication address of the current battery vehicle to the outside; A data broadcast unit, used to receive and store historical charging data broadcasted from a data communication module corresponding to the battery vehicle; The identity recognition module is used to extract features from historical charging data to obtain charging feature data, conduct online query based on the charging feature data, and determine the identity information of the current battery vehicle; The identity module includes: A curve construction unit is used to retrieve historical charging data, mark it in a two-dimensional coordinate system, and connect it with a smooth curve to obtain a historical charging curve; A curve sampling unit, used to sample data of a historical charging curve according to a preset sampling interval to obtain a plurality of sampling coordinates, and to generate a sampling character string by comparing adjacent sampling coordinates; The identity matching unit is used to convert the format of the sampled character string to obtain charging characteristic data, query the database preset in the cloud server according to the charging characteristic data, and determine the identity information of the battery vehicle. The identity information of the battery vehicle is determined by a unique identification code; The charging management module is used to query the mobile device bound to the current battery vehicle, send a charging request to the mobile device, and control the corresponding socket to supply power after obtaining user authorization. During the power supply process, identity authentication is continuously performed; The charging management module includes: A data request unit, used to send a charging request to a mobile device according to the identity information of the battery vehicle, wherein the charging request includes the location information, number information and fee information of the charging pile; A power supply control unit, used to receive an authorization instruction sent from a mobile device, supply power to a corresponding socket, and start billing; The real-time verification unit is used to receive the verification data sent from the data communication module in real time during the power supply process, and to verify the identity of the battery vehicle in real time based on the verification data. When the identity verification fails, the power supply is interrupted.

4. The battery vehicle fast charging system based on historical data according to claim 3 is characterized in that: When charging starts, the data communication module obtains real-time charging data, extracts real-time charging features based on the real-time charging data, and transmits the real-time charging features to the outside through wireless broadcasting. The wireless communication module on the charging pile verifies according to the real-time charging features and the charging data corresponding to the charging pile. If they match, the verification is determined to be successful.

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