Multifunctional charging pile and control method thereof

Abstract

The invention is suitable for the technical field of charging pile control, and provides a multifunctional charging pile and a control method thereof, and the control method of the multifunctional charging pile is applied to a multifunctional charging pile control system. Comprising a charging selection module, a vehicle identification module, a charging configuration module, a charging implementation module, a payment service module, a wireless communication module, a memory, an alarm, a processing center and an intelligent mobile terminal. The charging selection module, the vehicle identification module, the charging configuration module, the charging implementation module, the payment service module, the wireless communication module, the memory and the alarm are respectively connected with the processing center; the intelligent mobile phone, the tablet personal computer or the intelligent remote controller is in wireless network connection with the wireless communication module in the range of the wireless network or the Internet; the invention further provides a multifunctional charging pile. According to the invention, various charging interfaces can be supported, the charging requirements of different new energy automobiles are met, and prepayment can be carried out after charging so as to reduce payment time.

Description

Technical Field

[0001] The present invention relates to the field of control technology of charging piles, and in particular to a multifunctional charging pile and a control method thereof in the field of artificial intelligence. Background Art

[0002] The existing new energy charging piles are divided into electric vehicle charging piles and electric bicycle charging piles. Due to the differences in output power, interface standards, charging methods and processes, installation environment, and structural design, they are all operated separately, occupying a lot of space. At present, the development of new energy vehicles is restricted by the uneven distribution of charging piles and the lack of unified interfaces. At present, the location and availability of charging piles can be checked through the APP software of each charging pile operator to make an appointment for charging, but the distribution of charging piles in various regions of different charging pile operators cannot be checked on Gaode Map or Baidu Map. The charging gun interfaces of various operators are not unified and are only suitable for some models and different charging pile operators.

[0003] The "A Multifunctional Charging Pile (Publication No.: CN110341539A)" discloses a patent for the hardware control technology of the charging pile circuit. By setting a remote restart device, the power can be automatically cut off and restarted remotely when a fault occurs. A connection control circuit can detect whether the electric vehicle is successfully connected to the charging pile and make an appointment. A rectifier circuit, a flyback conversion circuit, a push-pull circuit, and a charging control circuit are set to avoid damage to the battery by fast charging, which can delay the battery life. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a multifunctional charging pile and a control method thereof, which can realize large-scale layout in key areas such as cities and highways by setting a charging selection module, a vehicle identification module, and a payment service module, and connect to the highway system and network map, so as to form a charging network, support a variety of charging interfaces, meet the charging needs of different new energy vehicles, and prepay after charging to reduce payment time; by setting a charging configuration module and implementing a charging module, the charging speed and charging efficiency are improved, and the user waiting time is reduced.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A multifunctional charging pile control method is applied to a multifunctional charging pile control system, comprising a charging selection module, a vehicle identification module, a charging configuration module, a charging implementation module, a payment service module, a wireless communication module, a memory, an alarm, a processing center, and an intelligent mobile terminal; the charging selection module, the vehicle identification module, the charging configuration module, the charging implementation module, the payment service module, the wireless communication module, the memory, and the alarm are respectively connected to the processing center; the smart phone, the tablet computer or the intelligent remote control is respectively connected to the wireless network of the wireless communication module within the range of a wireless network or the Internet;

[0007] The wireless communication module is provided with a wireless network unit, which is responsible for sending and receiving wireless signals and automatically networking with the intelligent mobile terminal within the effective network range;

[0008] The alarm device compares the actual charge capacity of the vehicle battery with the chargeable capacity of the vehicle battery preset in the memory, and automatically sounds an audible alarm and notifies to continue charging until it is fully charged if the charge capacity does not meet the standard.

[0009] The memory is responsible for storing information of the charging selection module, the vehicle identification module, the charging configuration module, the charging implementation module, the payment service module, the wireless communication module, the alarm, and the storage of the chargeable amount of the vehicle battery;

[0010] The processing center is responsible for the information transmission of the charging selection module, vehicle identification module, charging configuration module, charging implementation module, payment service module, wireless communication module, alarm, and memory. It is the hub of the system and compares the actual charging capacity of the vehicle battery with the vehicle battery chargeable capacity preset in the memory: if it meets the standard, the payment is confirmed; if it does not meet the standard, it is transmitted to the alarm and notified to continue charging until it is fully charged;

[0011] The charging selection module includes a target acquisition unit, an energy utilization unit, an electric energy calculation unit, a cost calculation unit, and a charging reservation unit, which obtains the location of the target charging station through a network map, makes a reservation for charging, navigates to the charging station, and transmits it to the vehicle identification module;

[0012] The vehicle identification module includes an information acquisition unit, an image processing unit, an angular second-order distance unit, a comparison calculation unit, a correlation calculation unit, an entropy value calculation unit, a contrast matrix unit, a character segmentation unit, and a license plate recognition unit, which is responsible for the subsequent configuration and conversion of charging parameters according to the vehicle license plate number, vehicle information and charging system information, and transmits them to the charging configuration module;

[0013] The charging configuration module includes a gun head matching unit, an electric energy unit, a battery energy unit, a power adjustment unit, and a voltage matching unit, which are responsible for automatically matching the required charging parameters according to the vehicle battery charging information to conduct trial charging to ensure the subsequent formal smooth charging, and pass it to the charging implementation module;

[0014] The charging implementation module includes a power calculation unit, a time calculation unit, a speed calculation unit, and a charging operation unit, which are responsible for charging the vehicle battery according to the configured charging parameters, and obtaining the actual capacity of the battery after it is fully charged, so as to subsequently determine whether the battery is fully charged and transmit it to the processing center;

[0015] The payment service module includes a payment selection unit, a payment setting unit, a payment monitoring unit, and a settlement payment unit, which are responsible for deducting the charging fee on the payment platform registered by the driver according to the battery full information, and providing a cleaning and returning service after charging.

[0016] The present invention provides a multifunctional charging pile control method, comprising the following steps:

[0017] S10, before charging, the charging selection module obtains the location of the target charging station through the network map and makes an appointment for charging, navigates to the charging station, and passes it to the vehicle identification module;

[0018] S20, the vehicle identification module configures and converts the charging parameters according to the vehicle license plate number, vehicle information and charging system information, and transmits them to the charging configuration module;

[0019] S30, the charging configuration module automatically matches the required charging parameters according to the vehicle battery charging information to attempt charging to ensure subsequent formal smooth charging, and transmits it to the charging implementation module;

[0020] S40, the charging module is implemented to charge the vehicle battery according to the configured charging parameters, and the actual capacity of the battery is obtained after it is fully charged, so as to subsequently determine whether the battery is fully charged, and transmit the result to the processing center;

[0021] S50, the processing center compares the actual charging capacity of the vehicle battery with the chargeable capacity of the vehicle battery preset in the memory: if the standard is met, the payment is confirmed; if the standard is not met, the charging continues until it is fully charged;

[0022] S60. The payment service module deducts the charging fee on the payment platform registered by the driver according to the battery full information, and provides cleaning and returning service after charging.

[0023] Further, the step S10 comprises the following steps:

[0024] S11, the target acquisition unit obtains the nearest charging station with a moderate unit price and multiple rechargeable charging guns by connecting to the network map, and transmits it to the energy utilization unit;

[0025] S12, the energy utilization unit calculates the vehicle energy utilization rate according to the formula "η E =η d *η j *η c *η l *η z *η q , η E is the vehicle energy utilization rate, η d , η j , η c , η l , η z , η q The energy utilization rate of the vehicle traveling to the target charging station is obtained by calculating the efficiency of battery discharge, motor, transmission system, road resistance utilization, gravity utilization, and driving force utilization, and is transmitted to the power calculation unit;

[0026] S13, the electric energy calculation unit calculates the electric energy used by the vehicle according to the formula " W is the total power used by the vehicle to reach the charging station (kwh), ζ is the power coefficient, M is the total mass of the vehicle (T), S is the mileage from the vehicle's location to the charging station (km), is the energy consumption ratio (kWh / T / km), η E The total electric energy used by the vehicle to reach the charging station is obtained for the vehicle energy utilization rate, and is transmitted to the cost calculation unit;

[0027] S14, the cost calculation unit calculates the charging cost of the charging station according to the charging cost formula "C u =(Q1+1000W / U)*a u , C u is the charging cost (RMB), Q1 is the battery capacity of the vehicle (mAh), W is the total power consumed by the vehicle to the charging station (kWh), U is the voltage of the charging station (V), and the charging unit price a u (rmb / kWh)” to obtain the lowest-cost charging station for subsequent reservations of low-cost charging, and pass it to the reservation charging unit;

[0028] S15, the reservation charging unit reserves a charging gun at a target charging station through a smartphone application or a vehicle system setting or a control screen of the vehicle and navigates to the target charging station.

[0029] Further, the step S20 comprises the following steps:

[0030] S21, the information collection unit obtains images or videos of different angles and directions of the vehicle to be charged through a high-definition camera set up at the charging station for subsequent preprocessing and transmits them to the image processing unit;

[0031] S22, the image processing unit calculates the grayscale weighted average method according to the formula "R = G = B = (W r R+W g G+W b B) / 3” to obtain the grayscale vehicle image and perform denoising, enhancement, scaling preprocessing, and pass it to the angular second-order moment unit;

[0032] S23, the angular second-order moment unit is calculated according to the grayscale energy calculation formula "Asm = ∑ i ∑ j P(i,j) 2 , i and j are the grayscale indexes respectively, and P(i,j) is the normalized grayscale co-occurrence matrix element. The image of grayscale distribution uniformity and texture coarseness is obtained and passed to the contrast calculation unit;

[0033] S24, the contrast calculation unit calculates the contrast according to the contrast calculation formula "C ON =∑i∑j(ij) 2 *P(i,j), i and j are the indexes of gray levels respectively, (ij) 2 To measure the distance difference between pixels, P(i,j) is the gray level co-occurrence matrix element. The image of the clarity and depth of the texture groove is obtained and passed to the relevant calculation unit;

[0034] S25, the correlation calculation unit calculates the correlation formula " i and j are the indexes of gray levels, P(i,j) is the element of gray-level co-occurrence matrix, μx and μy are the average values ​​of the rows and columns of gray-level co-occurrence matrix, respectively. The image of the similarity of gray levels in the row or column direction is obtained and passed to the entropy value calculation unit;

[0035] S26, the entropy value calculation unit calculates the image entropy according to the image entropy calculation formula "E NT =-∑ i ∑jP(i,j)*log(P(i,j)), i and j are the gray level indexes respectively, P(i,j) is the gray level co-occurrence matrix element” to obtain the image of information volume and complexity, and pass it to the contrast matrix unit;

[0036] S27, the contrast matrix unit calculates the image entropy according to the formula "I DM =∑i∑j(P(i,j) / [1+(ij) 2 ], P(i,j) is the element of the gray level co-occurrence matrix, (ij) 2To measure the distance difference between pixels, an image of the texture clarity and regularity is obtained to obtain the license plate features of color, texture, and edge, and pass them to the character segmentation unit;

[0037] S28, the character segmentation unit performs license plate location detection according to the license plate features in the image to obtain a license plate area image and segments each character on the license plate into individual characters through a template matching method, and transmits the characters to the license plate recognition unit;

[0038] S29, the license plate recognition unit calculates the template matching formula "S(x,y)=∑ i,j (T(i,j)-I(x+i,y+j)) 2 , S(x,y) is the score of template matching, T(i,j) is the pixel value in the template, and I(x+i,y+j) is the pixel value in the image to be matched. The license plate, vehicle, and battery information of the vehicle to be charged are obtained.

[0039] Further, the step S30 comprises the following steps:

[0040] S31, the gun tip matching unit lifts the gun tip and aligns it with the charging socket, and then the gun tip replacement system automatically replaces the matching gun tip for insertion and connection, and transmits it to the power unit;

[0041] S32, the power unit calculates the actual power consumption of the battery according to the formula "Q z =(f*m*g+C D *A*ρ*μ r 2 / 2)*l,Q z is the actual power consumption during driving, f is the friction force, m is the total mass of the vehicle, g is the acceleration due to gravity, C D is the drag coefficient, A is the frontal area of ​​the vehicle, ρ is the air density, μr is the speed factor, and l is the driving distance. The actual electric energy consumed by the vehicle is obtained and transmitted to the battery energy unit;

[0042] S33, the battery energy unit calculates the total power consumption of the battery according to the formula "Q e =Q z +η E *t*Pa+Pk*t,Q e is the actual total power consumption of the battery, Q z is the actual power consumption during driving, η is the efficiency factor, t is the battery discharge time, Pa is the power of the control system, and Pk is the power of the air conditioning system. The actual total power consumption of the vehicle is obtained and transmitted to the power adjustment unit;

[0043] S34, the power adjustment unit adjusts the power according to the maximum charging power of the battery of the vehicle to be charged to match the power of the input battery, and transmits it to the voltage matching unit;

[0044] S35. The voltage matching unit obtains the required charging voltage according to the voltage calculation formula "U=P / I, U is the charging voltage (V), P is the charging power (W), and I is the charging current (A)" to ensure the life of the battery.

[0045] Further, the step S40 comprises the following steps:

[0046] S41, the power calculation unit obtains the target charge amount according to the charge amount calculation formula "W2 = S*Ec, W2 is the charge amount that the vehicle should be charged for driving (kwh), S is the planned driving distance of the vehicle (km), and Ec is the unit energy consumption (kWh / km)", and transmits it to the time calculation unit;

[0047] S42, the time calculation unit obtains the target charging amount according to the charging time calculation formula "t = W2 / P, t is the time required for charging (h), W2 is the charging amount of the vehicle (kwh), and P is the charging power (W)", and transmits it to the speed calculation unit;

[0048] S43, the speed calculation unit obtains the actual charging speed during charging according to the charging speed calculation formula "C = U*I / t*ω / 1000, C is the actual charging speed (kwh / h), U is the input voltage during charging (V), I is the input current during charging (A), t is the time required for charging (h), ω is the circuit coefficient", and transmits it to the charging operation unit;

[0049] S44, the charging operation unit timely inputs the system according to the predetermined charging amount, charging time, and charging speed, automatically charges during the period of low electricity cost, and obtains the real-time power in time.

[0050] Further, the step S60 comprises the following steps:

[0051] S61, the payment selection unit selects the driver's preferred payment type by entering the payment platform and performs binding settings for subsequent payment settings, and transmits the information to the payment setting unit;

[0052] S62, setting the payment unit to determine the payment method of Alipay, WeChat or other platforms according to the payment type and whether to adopt prepayment before charging or deduction after charging, and transmit it to the payment monitoring unit;

[0053] S63, the payment monitoring unit monitors the charging progress and the continuity of the corresponding payment increment through the platform to ensure the accuracy of the billing system, and transmits it to the settlement payment unit;

[0054] S64. After charging is completed, the settlement and payment unit automatically deducts the payment based on the billing amount through the driver's bound credit card, WeChat Pay or Alipay.

[0055] A multifunctional charging pile control system provided by the present invention also includes a computer-readable storage medium containing a memory; the memory stores a computer program, and when the functional modules execute the computer program, the steps of a multifunctional charging pile control method described in any one of the above are implemented; the computer-readable storage medium stores a computer program, and when the computer program is executed by the functional modules, the steps of a multifunctional charging pile control method described in any one of the above are implemented.

[0056] A multifunctional charging pile control system provided by the present invention also includes a multifunctional charging pile control device, which is implemented by the multifunctional charging pile control method described above.

[0057] The present invention also provides a multifunctional charging pile, which is realized by using the multifunctional charging pile control method described above.

[0058] The beneficial effects of the present invention compared with the prior art are as follows:

[0059] By setting up charging selection modules, vehicle identification modules, and payment service modules, and connecting to highway systems and network maps, a uniform layout can be achieved in key areas such as cities and highways, forming a charging network that supports multiple charging interfaces to meet the charging needs of different new energy vehicles, and prepayment after charging to reduce payment time; by setting up charging configuration modules and implementing charging modules, energy efficiency can be increased, energy consumption and environmental pollution can be reduced, charging speed and efficiency can be increased, user waiting time can be reduced, and user normal charging needs can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 It is a schematic diagram of the system module of the present invention;

[0062] Figure 2 This is a schematic diagram of a charging selection module of the present invention;

[0063] Figure 3 A schematic diagram of a vehicle identification module of the present invention;

[0064] Figure 4 It is a schematic diagram of a charging configuration module of the present invention;

[0065] Figure 5 This is a schematic diagram of a charging module for implementing the present invention;

[0066] Figure 6 This is a schematic diagram of a payment service module of the present invention;

[0067] Figure 7 It is a schematic diagram of the method flow control program of the present invention;

[0068] Figure 8 This is a schematic diagram of step S10 in the method flow of the present invention;

[0069] Fig. 9 This is a schematic diagram of step S20 in the method flow of the present invention;

[0070] Fig.10 This is a schematic diagram of step S30 in the method flow of the present invention;

[0071] Fig.11 This is a schematic diagram of step S40 in the method flow of the present invention;

[0072] Fig.12 It is a program schematic diagram of step S60 in the method flow of the present invention. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0074] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments:

[0075] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0076] It should be noted that when a module is referred to as being "disposed on" another module, it can be directly on the other module or indirectly on the other module. When a module is referred to as being "connected to" another module, it can be directly connected to the other module or indirectly connected to the other module.

[0077] In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0078] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0079] See also Figure 1 As shown, the present invention provides a multifunctional charging pile control method, which is applied to a multifunctional charging pile control system, including a charging selection module, a vehicle identification module, a charging configuration module, a charging implementation module, a payment service module, a wireless communication module, a memory, an alarm, a processing center, and an intelligent mobile terminal; the charging selection module, the vehicle identification module, the charging configuration module, the charging implementation module, the payment service module, the wireless communication module, the memory, and the alarm are respectively connected to the processing center; the smart phone, the tablet computer or the smart remote control are respectively connected to the wireless network of the wireless communication module within the range of a wireless network or the Internet.

[0080] The wireless communication module is provided with a wireless network unit, which is responsible for sending and receiving wireless signals and automatically networking with the intelligent mobile terminal within an effective network range.

[0081] The alarm device compares the actual charging capacity of the vehicle battery with the chargeable capacity of the vehicle battery preset in the memory. If the capacity does not meet the standard, the alarm device automatically sounds an audible alarm and notifies the user to continue charging until the battery is fully charged.

[0082] The memory is responsible for storing information of the charging selection module, the vehicle identification module, the charging configuration module, the charging implementation module, the payment service module, the wireless communication module, the alarm, and the storage of the chargeable amount of the vehicle battery.

[0083] To further explain, the rechargeable capacity of the vehicle battery refers to the maximum chargeable capacity of the vehicle battery to be charged obtained through the vehicle identification module.

[0084] The processing center is responsible for the information transmission of the charging selection module, vehicle identification module, charging configuration module, charging implementation module, payment service module, wireless communication module, alarm, and memory. It is the system hub center and compares the actual charging capacity of the vehicle battery with the vehicle battery chargeable capacity preset in the memory: if the standard is met, the payment is confirmed; if the standard is not met, the alarm is transmitted and a notification is given to continue charging until it is fully charged.

[0085] See also Figure 2 As shown, the charging selection module includes a target acquisition unit, an energy utilization unit, an electric energy calculation unit, a cost calculation unit, and a charging reservation unit. It obtains the location of the target charging station through a network map, makes a charging reservation, navigates to the charging station, and passes it to the vehicle identification module.

[0086] Furthermore, the target acquisition unit obtains the nearest charging station with a moderate unit price and multiple rechargeable charging guns by connecting to the network map, and transmits it to the energy utilization unit; the energy utilization unit calculates the vehicle energy utilization rate according to the formula "η E =η d *η j *η c *η l *η z *η q "The energy utilization rate of the vehicle traveling to the target charging station is obtained and transmitted to the power calculation unit; the power calculation unit calculates the power used by the vehicle according to the formula The total electric energy used by the vehicle to reach the charging station is obtained and transmitted to the cost calculation unit; the cost calculation unit calculates the charging cost of the charging station according to the charging cost calculation formula "C u =(Q1+1000W / U)*a u "The charging station with the lowest cost is obtained and transmitted to the reservation charging unit; the reservation charging unit reserves a charging gun at the target charging station through a smartphone application or a vehicle system setting or a vehicle control screen and navigates to the target charging station.

[0087] See also Figure 3 As shown, the vehicle identification module includes an information acquisition unit, an image processing unit, an angular second-order distance unit, a comparison calculation unit, a correlation calculation unit, an entropy value calculation unit, a contrast matrix unit, a character segmentation unit, and a license plate recognition unit, which is responsible for the vehicle license plate number, vehicle information and charging system information, so as to configure and convert the charging parameters in the future, and pass them to the charging configuration module.

[0088] Furthermore, the information acquisition unit obtains images or videos of different angles and directions of the vehicle to be charged through a high-definition camera set up in the charging station, and transmits them to the image processing unit; the image processing unit calculates the grayscale weighted average according to the grayscale weighted average calculation formula "R = G = B = (W r R+W g G+W b B) / 3” to obtain the grayscale vehicle image and remove noise, enhance, scale, and pass it to the angular second-order moment unit; the angular second-order moment unit calculates the grayscale energy according to the grayscale energy calculation formula “Asm=∑ i ∑ j P(I,j ) 2” to obtain the image of gray distribution uniformity and texture coarseness, and pass it to the contrast calculation unit; the contrast calculation unit calculates the contrast according to the contrast calculation formula “C ON =∑ i ∑ j (ij) 2 *P(i,j), i and j are grayscale indexes respectively. The image of clarity and texture groove depth is obtained and transmitted to the relevant calculation unit; the relevant calculation unit calculates the correlation formula according to the correlation degree. The image of the gray level similarity in the row or column direction is obtained and transmitted to the entropy value calculation unit; the entropy value calculation unit calculates the image entropy according to the image entropy calculation formula "E NT =-∑i∑jP(i,j)*log(P(i,j))” to obtain an image with information content and complexity, and pass it to the contrast matrix unit; the contrast matrix unit calculates the image entropy according to the image entropy calculation formula “I DM =∑i∑j(P(i,j) / [1+(ij) 2 ]” to obtain an image of texture clarity and regularity, so as to obtain the license plate features of color, texture and edge, and pass it to the character segmentation unit; the character segmentation unit performs license plate positioning detection according to the license plate features in the image to obtain the license plate area image and divides each character on the license plate into separate characters through the template matching method, and passes it to the license plate recognition unit; the license plate recognition unit calculates the number plate according to the template matching formula “S(x,y)=∑ i,j (T(i,j)-I(x+i,y+j)) 2 "Get the license plate, vehicle, and battery information of the vehicle to be charged.

[0089] See also Figure 4 As shown, the charging configuration module includes a gun head matching unit, an operating power unit, a battery energy unit, a power adjustment unit, and a voltage matching unit, which are responsible for automatically matching the required charging parameters according to the vehicle battery charging information to try charging, so as to ensure the subsequent formal smooth charging, and pass it to the charging implementation module.

[0090] Furthermore, the gun tip matching unit automatically replaces the matching gun tip through the gun tip replacement system by lifting the gun tip to align with the charging socket, and then transmits it to the exercise power unit; the exercise power unit calculates the actual power consumption of the battery according to the formula "Q z =f*m*g*l+CD*A*ρ*μ r 2 *l / 2" to obtain the actual power consumption of the vehicle and pass it to the battery energy unit; the battery energy unit calculates the actual total power consumption of the battery according to the formula "Q e =Q z +η E *t*Pa+Pk*t” to obtain the total electric energy actually consumed by the vehicle, and transmit it to the power adjustment unit; the power adjustment unit adjusts the power according to the maximum charging power borne by the battery of the vehicle to be charged to match the power of the input battery, and transmits it to the voltage matching unit; the voltage matching unit obtains the required charging voltage according to the voltage calculation formula “U=P / I” to ensure the life of the battery.

[0091] See also Figure 5 As shown, the charging module includes a power calculation unit, a time calculation unit, a speed calculation unit, and a charging operation unit, which are responsible for charging the vehicle battery according to the configured charging parameters, and obtaining the actual capacity of the battery after it is fully charged, so as to subsequently determine whether the battery is fully charged and transmit it to the processing center.

[0092] Further, the power calculation unit obtains the target charged capacity according to the calculation formula of the amount to be charged "W2=S*Ec", and transmits it to the time calculation unit; the time calculation unit obtains the target charged capacity according to the charging time calculation formula "t=W2 / P, t is the time required for charging (h), W2 is the amount of charge that the vehicle should be charged (kwh), and P is the charging power (W)", and transmits it to the speed calculation unit; the speed calculation unit obtains the actual charging speed during charging according to the charging speed calculation formula "C=U*I / t*ω / 1000, C is the actual charging speed (kwh / h), U is the input voltage during charging (V), I is the input current during charging (A), t is the time required for charging (h), and ω is the circuit coefficient", and transmits it to the charging operation unit; the charging operation unit timely enters the predetermined amount to be charged, charging time, and charging speed into the system to automatically charge during the period of low electricity cost, and obtains the real-time power in time.

[0093] See also Figure 6 As shown, the payment service module includes a payment selection unit, a payment setting unit, a payment monitoring unit, and a settlement payment unit, which are responsible for deducting the charging fee on the payment platform registered by the driver according to the battery full information, and providing cleaning and returning services after charging.

[0094] Furthermore, the payment selection unit selects the payment type preferred by the driver by entering the payment platform and performs binding settings, and transmits it to the payment setting unit; the payment setting unit determines the payment method of Alipay, WeChat or other platforms according to the payment type and whether to adopt prepayment before charging or deduction after charging, and transmits it to the payment monitoring unit; the payment monitoring unit monitors the charging progress and the corresponding payment increment continuity through the platform to ensure the accuracy of the billing system, and transmits it to the settlement payment unit; the settlement payment unit automatically deducts and settles the billing amount through the driver's bound credit card, WeChat Pay or Alipay according to the platform after charging is completed.

[0095] System operation working principle:

[0096] Before charging, the charging selection module obtains the location of the target charging station through the network map and makes an appointment for charging, navigates to the charging station, and passes it to the vehicle identification module; the vehicle identification module uses the vehicle's license plate number, vehicle information and its charging system information to facilitate subsequent charging parameter configuration and conversion, and passes it to the charging configuration module; then the charging configuration module automatically matches the required charging parameters according to the vehicle battery charging information to attempt charging to ensure subsequent formal and smooth charging, and passes it to the charging implementation module; the charging implementation module is controlled to charge the vehicle battery according to the configured charging parameters, and the actual capacity of the battery is obtained after it is fully charged, so as to subsequently determine whether the battery is fully charged and pass it to the processing center; the processing center compares the actual charging capacity of the vehicle battery with the chargeable capacity of the vehicle battery preset in the memory: if it meets the standard, the payment is confirmed; if it does not meet the standard, the charging continues until it is fully charged; then the payment service module deducts the charging fee on the payment platform registered by the driver according to the battery full information, and provides a cleaning and return service after charging.

[0097] When the duty officer or manager is outdoors or on a business trip, he can use a smart phone or tablet to automatically connect to the wireless network or the Internet through the wireless communication module, and realize the combination of smart terminals, the Internet and artificial intelligence technology to achieve remote monitoring, automatic identification and intelligent scheduling functions. Through the intelligent system, the operator of the charging pile can monitor the status and usage of the charging pile in real time, predict and solve faults in advance, and provide users with more stable and reliable charging services. Users can remotely query the location and idleness of the charging pile through mobile phone APP or smart terminal, realize appointment charging, and improve charging efficiency and convenience.

[0098] See also Figure 7 As shown, the present invention provides a multifunctional charging pile control method, comprising the following steps:

[0099] S10, before charging, the charging selection module obtains the location of the target charging station through the network map and makes an appointment for charging, navigates to the charging station, and passes it to the vehicle identification module;

[0100] See also Figure 8 As shown, the step S10 comprises the following steps:

[0101] S11, the target acquisition unit obtains the nearest charging station with a moderate unit price and multiple rechargeable charging guns by connecting to the network map, and transmits it to the energy utilization unit;

[0102] To further explain, by connecting to the network map and according to the driver's predetermined distance range, there are multiple charging stations with charging guns and their distances, charging unit prices, as well as road condition information such as uphill road length, downhill road length, bad road length, wind direction intensity, etc., and based on this information, the pre-selected charging stations are grouped, one group is divided into two groups according to charging unit price from low to high, one group is divided into two groups according to distance from near to far, and one group is divided into two groups according to road conditions from best to worst, so as to facilitate subsequent comprehensive cost calculation of the charging costs.

[0103] S12, the energy utilization unit calculates the vehicle energy utilization rate according to the formula "η E =η d *η j *η c *η l *η z *η q ,η E is the vehicle energy utilization rate, η d , η j , η c , η l , η z , η q The energy utilization rate of the vehicle traveling to the target charging station is obtained by calculating the efficiency of battery discharge, motor, transmission system, road resistance utilization, gravity utilization, and driving force utilization, and is transmitted to the power calculation unit;

[0104] Further description, the η d , η j、 η c , η l , η z , η q When the vehicle reaches the target charging station, the efficiency of battery discharge, motor, transmission system, road resistance utilization, gravity utilization, and driving force utilization will be different according to the road conditions, η d , η j , η c , η l , η z , η qare obtained through sensors respectively; if the road to the charging station is mostly uphill or bad, then the battery discharge efficiency η of the vehicle traveling to the target charging station d 、Motor efficiency η j , transmission efficiency η c , Road resistance utilization efficiency η l , Gravity utilization efficiency η z , driving force utilization efficiency η q Relatively low, the opposite is true if it is a downhill road or a good road.

[0105] S13, the electric energy calculation unit calculates the electric energy used by the vehicle according to the formula " W is the total power used by the vehicle to reach the charging station (kwh), ζ is the power coefficient, M is the total mass of the vehicle (T), S is the mileage from the vehicle's location to the charging station (km), is the energy consumption ratio (kWh / T / km), η E The total electric energy used by the vehicle to reach the charging station is obtained for the vehicle energy utilization rate, and is transmitted to the cost calculation unit;

[0106] Further explanation: M is the weight of the vehicle and the weight of the people and goods on the vehicle, and ζ, is a known parameter, the M is obtained through a sensor, and the η E The S is obtained through the above calculation, and is obtained through network map navigation; generally speaking, downhill roads and flat roads with good road surfaces use the least amount of electric energy, whereas uphill roads and bad roads use relatively more electric energy, and charging stations that are far away also use relatively more electric energy.

[0107] S14, the cost calculation unit calculates the charging cost of the charging station according to the charging cost formula "C u =(Q1+1000W / U)*a u , C u is the charging cost (RMB), Q1 is the battery energy to be charged (mAh), W is the total power used by the vehicle to the charging station (kWh), U is the voltage of the charging station (V), and the charging unit price au (RMB / kWh) is used to obtain the charging station with the lowest cost, so as to make subsequent reservations for low-cost charging and pass it to the reservation charging unit;

[0108] Further explanation: the “C u =(Q1+1000W / U)*a u ” is obtained by substituting “Q2=1000W / U” into “C u =[Q1+Q2]*a u "; Q2 is the power consumed by the vehicle when driving to the charging station (mAh), Q1 is the maximum power that the vehicle battery can charge before the charging reservation (mAh); Q1 is obtained by the sensor, U, a uThey are obtained through network map navigation respectively; since Q = 1000W / U, the relationship between electric energy, power and voltage is: 1mAh = 1000kwh / V. Generally speaking, the nearest charging station on a flat or downhill road has a relatively lower cost, so it is the first choice for booking a charging station.

[0109] S15, the reservation charging unit reserves a charging gun at a target charging station through a smartphone application or a vehicle system setting or a control screen of the vehicle and navigates to the target charging station.

[0110] To further explain, the driver confirms whether the vehicle has the function of scheduled charging. If so, the driver can directly obtain the selected target charging station on the vehicle control screen for scheduled charging. If not, the driver can obtain the selected target charging station through a smartphone application or a network map for scheduled charging, and then automatically select the best route to navigate to the target charging station and select the target charging gun head for charging.

[0111] S20, the vehicle identification module configures and converts the charging parameters according to the vehicle license plate number, vehicle information and charging system information, and transmits them to the charging configuration module;

[0112] See also Fig. 9 As shown, the step S20 comprises the following steps:

[0113] S21, the information collection unit obtains images or videos of different angles and directions of the vehicle to be charged through a high-definition camera set up at the charging station for subsequent preprocessing and transmits them to the image processing unit;

[0114] It is further explained that the vehicle image is captured by a high-definition camera and uploaded to a database in the memory, including data such as the vehicle's license plate number, appearance shape, color, vehicle height, vehicle length, vehicle width, vehicle entry time, and geographic location; the high-definition camera can shoot at a 360-degree angle, and can capture images of various positions of the vehicle to be charged from multiple different angles, and identify different images of the vehicle to be charged from different angles, thereby being able to more accurately and comprehensively identify the various positions and shapes of the vehicle to be charged, or based on multiple images of different positions of the vehicle to be charged taken from different angles, identify the vehicle to be charged by multi-angle matching, and then determine the license plate number and vehicle information of the vehicle to be charged.

[0115] S22, the image processing unit calculates the grayscale weighted average method according to the formula "R = G = B = (W r R+W g G+W b B) / 3” to obtain the grayscale vehicle image and perform denoising, enhancement, scaling preprocessing, and pass it to the angular second-order moment unit;

[0116] Further explanation: Since the human eye is very sensitive to color, the “W r =0.299, W g =0.587, W b =0.114" weight pair "R=G=B=(W r R+W g G+W b B) / 3" is used to calculate and convert the RGB components in the color image into grayscale values, reducing the calculation complexity while retaining the basic information of the image; the random noise in the grayscale image is removed by means of mean filtering, median filtering and Gaussian filtering, thereby improving the image quality, reducing the noise and interference in the image, and making the license plate information clearer; the homomorphic filter is used to enhance the contrast of the image, making the contrast between the license plate and the background more obvious, which is conducive to subsequent character recognition; the image is resized by the nearest neighbor interpolation method, and the image is appropriately scaled to meet different recognition requirements, so as to optimize the size and position of the license plate in the image, improve the recognition accuracy, and provide a better basis for subsequent character segmentation.

[0117] S23, the angular second-order moment unit is calculated according to the grayscale energy calculation formula "Asm = ∑ i ∑ j P(i,j) 2 , i and j are the grayscale indexes respectively, and P(i,j) is the normalized grayscale co-occurrence matrix element. The image of grayscale distribution uniformity and texture coarseness is obtained and passed to the contrast calculation unit;

[0118] To further explain, the angular second moment (ASM), also called energy, is the sum of the squares of the elements of the grayscale co-occurrence matrix. It is a measure of the uniformity of the grayscale change of the image texture, reflecting the uniformity of the image grayscale distribution and the coarseness of the texture. When the image texture is fine and the grayscale distribution is uniform, the angular second moment value is larger; conversely, when the image texture is rough and the grayscale distribution is uneven, the angular second moment value is smaller.

[0119] S24, the contrast calculation unit calculates the contrast according to the contrast calculation formula "C ON =∑ i ∑ j (ij) 2 *P(i,j), i and j are the indexes of gray levels respectively, (ij) 2 To measure the distance difference between pixels, P(i,j) is the gray level co-occurrence matrix element. The image of the clarity and depth of the texture groove is obtained and passed to the relevant calculation unit;

[0120] Further explanation: P(i,j) is the value of position (i,j) in the grayscale co-occurrence matrix, which is the normalized frequency of grayscale i and grayscale j appearing simultaneously at a specific distance and angle; the contrast is the moment of inertia near the main diagonal of the grayscale co-occurrence matrix, which reflects how the matrix values ​​are distributed, and reflects the clarity of the image and the depth of the texture grooves. If the texture grooves are deeper, the contrast is greater and the visual effect is clearer; conversely, if the contrast is small, the grooves are shallow and the effect is blurred; the grayscale difference, that is, the more pixel pairs with large contrast, the larger this value is, and if the element value far away from the diagonal in the grayscale co-occurrence matrix is ​​larger, the contrast is also greater.

[0121] S25, the correlation calculation unit calculates the correlation formula " i and j are the indexes of gray levels, P(i,j) is the element of gray-level co-occurrence matrix, μx and μy are the average values ​​of the rows and columns of gray-level co-occurrence matrix, respectively. The image of the similarity of gray levels in the row or column direction is obtained and passed to the entropy value calculation unit;

[0122] To further explain, the correlation of an image is used to measure the similarity of the grayscale of the image in the row or column direction, the correlation between the element values ​​in the grayscale co-occurrence matrix, and the average intensity of the element values ​​in the grayscale co-occurrence matrix. Therefore, the size of the correlation value reflects the local grayscale correlation in the image. When the matrix elements are uniformly equal, the larger the correlation value is; on the contrary, if the matrix image element values ​​differ greatly, the smaller the correlation value is; if the result is closer to 1, the stronger the linear relationship between the element values ​​is, and if it is closer to 0, the weaker the linear relationship is; P(i,j) is the element value in the grayscale co-occurrence matrix, indicating the frequency of occurrence of the pixel pair (i,j); μx and μy are the average values ​​of the rows and columns of the grayscale co-occurrence matrix, respectively, which are used to measure the average intensity of the element values ​​in the grayscale co-occurrence matrix.

[0123] S26, the entropy value calculation unit calculates the image entropy according to the image entropy calculation formula "E NT =-∑i∑jP(i,j)*log(P(i,j)), i and j are the indexes of gray levels respectively, P(i,j) is the gray level co-occurrence matrix element” to obtain the image with information content and complexity, and pass it to the contrast matrix unit;

[0124] It is further explained that the image entropy (ENT) is a measure of the randomness of the amount of information contained in the image, reflecting the amount of information carried by the image and the complexity of the pixel distribution. It is an estimate of the "busyness" of the image and is the bit average of the image grayscale set (in bits / pixel). It describes the average amount of information of the image source, that is, the uncertainty of the occurrence of various pixels, and determines the average length of the image pixel encoding. When all values ​​in the co-occurrence matrix are equal or the pixel value shows the greatest randomness, its entropy value is the largest. Therefore, the entropy value indicates the complexity of the image grayscale distribution. The larger the entropy value, the more complex the image and the greater the amount of information contained. In other words, the more uniform the grayscale distribution of the image, the greater the difference in the grayscale value of each pixel, and the greater the amount of information in the image. The calculation of entropy is based on the probability of occurrence of each grayscale in the image. The entropy of the entire image can be obtained by calculating the entropy values ​​of all grayscale levels. The entropy of a well-focused image is greater than that of an image without clear focus. Therefore, entropy can be used as a focus evaluation standard. The larger the entropy, the clearer the image. This shows that entropy not only reflects the average amount of information in the image, but also represents the aggregation characteristics of the image grayscale distribution.

[0125] S27, the contrast matrix unit calculates the image entropy according to the formula "I DM =∑i∑j(P(i,j) / [1+(ij) 2 ], P(i,j) is the element of the gray level co-occurrence matrix, (ij) 2 To measure the distance difference between pixels, an image of the texture clarity and regularity is obtained to obtain the license plate features of color, texture, and edge, and pass them to the character segmentation unit;

[0126] Further explanation: the inverse difference matrix (IDM) is an eigenvalue of the gray-level co-occurrence matrix, which is used to reflect the clarity and regularity of the texture. When the texture is clear and regular, its value is large, and when the texture is disordered, its value is small, which can provide important information about the image texture structure; the element P(i,j) of the gray-level co-occurrence matrix measures the distance difference between pixels (ij) 2 are all known parameters in the image.

[0127] S28, the character segmentation unit performs license plate location detection according to the license plate features in the image to obtain a license plate area image and segments each character on the license plate into individual characters through a template matching method, and transmits the characters to the license plate recognition unit;

[0128] To further explain, the system performs positioning detection in the image based on the color, texture, edge and other features of the license plate to determine the position of the license plate, and divides the image into license plate areas to improve the accuracy of positioning; by summing the number of black and white pixels in each column, the character boundary is determined according to a certain threshold or condition, and each character is segmented from the image using template matching; multiple templates are designed for each character in the license plate to prevent character deformation and noise, so as to cover different character styles and lighting conditions.

[0129] S29, the license plate recognition unit calculates the template matching formula "S(x,y)=∑ i,j (T(i,j)-I(x+i,y+j)) 2 , S(x,y) is the score of template matching, T(i,j) is the pixel value in the template, and I(x+i,y+j) is the pixel value in the image to be matched. The license plate, vehicle, and battery information of the vehicle to be charged are obtained.

[0130] To further illustrate, the preprocessed image to be identified is matched with the pre-prepared license plate template through the template matching method, and the most matching license plate character or style is determined by calculating the correlation coefficient or the normalized mutual correlation coefficient, and the position with the highest matching score is found to determine the position of the character. The license plate number of the vehicle to be charged is then identified, and the vehicle management office system is connected to obtain the payer information of the driver or owner bound to the vehicle, as well as the maximum capacity, input voltage, input current, power and other information of the battery, so as to facilitate subsequent deductions and charging configuration.

[0131] S30, the charging configuration module automatically matches the required charging parameters according to the vehicle battery charging information to attempt charging to ensure subsequent formal smooth charging, and transmits it to the charging implementation module;

[0132] See also Fig.10 As shown, the step S30 comprises the following steps:

[0133] S31, the gun tip matching unit lifts the gun tip and aligns it with the charging socket, and then the gun tip replacement system automatically replaces the matching gun tip for insertion and connection, and transmits it to the power unit;

[0134] It is further explained that the gun head replacement system is provided with a DC charging gun (fast charging head) and an AC charging gun (slow charging head); the DC charging gun, also known as a fast charging head, is used for fast charging, has a large current and high power, and can directly input DC power into the battery pack of the car without conversion through the inverter inside the car, thereby improving the charging efficiency and speed, and is divided into Japanese standard (CHAdeMO) fast charging head, American standard (CCS1) fast charging head, European standard (CCS2) fast charging head, and Chinese standard (GB / T) fast charging head. Since the three are different in interface shape and parameters, the three are not interchangeable with each other; the AC charging gun, also known as a slow charging head, converts AC power into DC power through the inverter inside the car, and then inputs it into the battery pack of the car, so the charging efficiency and speed are relatively low, and is divided into American standard (Type1) slow charging head, European standard (Type2) slow charging head, and Chinese standard (GB / T) slow charging head. Since the three are different in interface shape but relatively close in parameters, they can be converted through an adapter.

[0135] S32, the power unit calculates the actual power consumption of the battery according to the formula "Qz=(f*m*g+CD*A*ρ*μ r 2 / 2)*l,Q z is the actual power consumption during driving, f is the friction force, m is the total mass of the vehicle, g is the acceleration due to gravity, C D is the drag coefficient, A is the frontal area of ​​the vehicle, ρ is the air density, μr is the speed factor, and l is the driving distance. The actual electric energy consumed by the vehicle is obtained and transmitted to the battery energy unit;

[0136] Further explanation, the "Q z =(f*m*g+CD*A*ρ*μ r 2 / 2)*l" through "F=f*m*g+CD*A*ρ*μ r 2 / 2” into “Q z =F*l”, the above parameters are converted in unified units; the friction force f, the total mass m, the gravitational acceleration g, and the distance l of the vehicle are all obtained through the sensors set up, the frontal area A of the vehicle is calculated by the known length, width and height, and the drag coefficient C of the vehicle is D , air density ρ, and velocity factor μr are all known constants, but the steeper the slope, the greater the drag coefficient C. D The larger the C DGenerally, it is between 0.1 and 1. When the vehicle is traveling on a downhill road, the actual power consumption of the vehicle is less than or equal to the theoretical power consumption of the battery. However, when traveling on an uphill road or a road with high wind resistance or when using high-end air conditioning in hot summer, the actual power consumption of the vehicle is much greater than the theoretical power consumption of the battery. Many vehicles can theoretically run 100 kilometers but can actually only run 60 kilometers.

[0137] S33, the battery energy unit calculates the total power consumption of the battery according to the formula "Q e =Q z +η E *t*Pa+Pk*t,Q e is the actual total power consumption of the battery, Q z is the actual power consumption during driving, η is the efficiency factor, t is the battery discharge time, Pa is the power of the control system, and Pk is the power of the air conditioning system. The actual total power consumption of the vehicle is obtained and transmitted to the power adjustment unit;

[0138] Further explanation: the actual power consumption Qz of the battery when the vehicle is running is obtained by the above calculation, the efficiency factor η is a known parameter, the discharge duration t of the battery under specific conditions, the average power Pa output by the battery due to the vehicle speed change / brake / monitoring control system within time t, and the power Pk output by the air conditioning or heating and cooling control system are obtained by the set sensors respectively; the "Q e =Q z +η E *t*Pa+Pk*t" through "Q k =Pk*t" into "Q e =Q z +Q a +Q k ", the above parameters are converted according to the same unit, where Qa is the power consumption of the vehicle control system, and Qk is the power consumption of the vehicle air conditioning system.

[0139] S34, the power adjustment unit adjusts the power according to the maximum charging power of the battery of the vehicle to be charged to match the power of the input battery, and transmits it to the voltage matching unit;

[0140] Further explanation: for home charging piles or public charging stations, the charging current or voltage is adjusted by the intelligent control system of the charging pile to change the charging power. Some fast chargers can provide different charging power levels to meet the needs of different electric vehicles, and the charging pile power needs are adjusted on the premise of ensuring charging safety and battery life; for new energy vehicles, a button or switch is provided near the charging interface to select the required charging power. Some vehicles also allow car owners to adjust the charging power through the menu on the on-board display, which is suitable for the vehicle's own functions; if the driver chooses high-power charging when he urgently needs fast charging, and chooses low-power charging when he has plenty of time or wants to extend the battery life, it can not only help the car owner make better use of charging resources, but also manage battery life and charging rate, and improve charging efficiency.

[0141] S35. The voltage matching unit obtains the required charging voltage according to the voltage calculation formula "U=P / I, U is the charging voltage (V), P is the charging power (W), and I is the charging current (A)" to ensure the life of the battery.

[0142] It is further explained that the charging power P is a predetermined data, and the charging current I is one tenth of the battery capacity, with an error of about ±0.5, which must be adapted to the battery capacity; the battery voltage used in general cars is between 12 and 14.4 volts, and excessive voltage can cause symptoms such as battery heating. The battery temperature is obtained by the sensor to control the voltage, and the output current is automatically adjusted according to the battery condition, thereby minimizing battery damage and ensuring that the battery can be charged normally. The low-voltage charging system and heating circuit are set to optimize the battery charging efficiency and safety.

[0143] S40, the charging module is implemented to charge the vehicle battery according to the configured charging parameters, and the actual capacity of the battery is obtained after it is fully charged, so as to subsequently determine whether the battery is fully charged, and transmit the result to the processing center;

[0144] See also Fig.11 As shown, the step S40 comprises the following steps:

[0145] S41, the power calculation unit obtains the target charge amount according to the charge amount calculation formula "W2 = S*Ec, W2 is the charge amount that the vehicle should be charged for driving (kwh), S is the planned driving distance of the vehicle (km), and Ec is the unit energy consumption (kWh / km)", and transmits it to the time calculation unit;

[0146] Further explanation, the "W2 = S * Ec" is calculated by "S = W2 / Ec", the vehicle's planned driving distance S is obtained through the network map scheduled navigation, and the unit energy consumption Ec is a known parameter. For example: an electric car needs to travel 110 kilometers to the next destination, and the unit energy consumption of the vehicle is 0.18kWh / km, then the required power is: W2 = S * Ec = 110 * 0.18 = 19.8 (degrees), if the power required to reach the destination exceeds the maximum capacity of the vehicle battery, the maximum capacity of the vehicle is used as the actual power charged this time, and the remaining power is charged at the next charging station.

[0147] S42, the time calculation unit obtains the target charging amount according to the charging time calculation formula "t = W2 / P, t is the time required for charging (h), W2 is the charging amount of the vehicle (kwh), and P is the charging power (W)", and transmits it to the speed calculation unit;

[0148] To further explain, the "t=W2 / P" is based on the output power of the charging equipment and the battery capacity, and is calculated through "W2=t*P". The vehicle's charging amount W2 and charging power P are obtained according to the above calculations, where 1kwh is equal to 1000W. The units are converted according to this equation during calculation. For example: a new energy vehicle has a battery capacity of 50kWh and is charged using a charging pile with a charging power of 120kW. The required charging time is: t=W2 / P=50÷120=0.42 (hours).

[0149] S43, the speed calculation unit obtains the actual charging speed during charging according to the charging speed calculation formula "C = U*I / t*ω / 1000, C is the actual charging speed (kwh / h), U is the input voltage during charging (V), I is the input current during charging (A), t is the time required for charging (h), ω is the circuit coefficient", and transmits it to the charging operation unit;

[0150] To further explain, the circuit coefficient ω refers to the different powers generated by direct current and alternating current, so the coefficients are also different. When AC fast charging is used, the circuit coefficient ω is 1, and when DC slow charging is used, the circuit coefficient ω is between 0.1 and 1, and increases according to the increase of the current. For example: when an electric car is fast charged, the voltage U is 350V, the charging current I is 200A, the planned full charge time t is 2h, and the circuit coefficient ω is 1, then the charging speed: C=U*I / t*ω=350*200 / 1*1 / 1000=35 (kWh / h); if slow charging is used, the voltage U is 220V, the charging current I is 150A, the planned full charge time t is 2h, and the circuit coefficient ω is 0.95, then the charging speed: C=U*I / t*ω=220*150 / 2*0.95=15.7 (kWh / h); generally, when the voltage remains unchanged, the current directly determines the charging rate. The larger the current, the faster the charging speed.

[0151] S44, the charging operation unit timely inputs the system according to the predetermined charging amount, charging time, and charging speed, automatically charges during the period of low electricity cost, and obtains the real-time power in time.

[0152] Further explanation: according to the above-mentioned preset power, voltage, current and other charging parameters, the time to start charging and the expected time to use the vehicle are set to help the vehicle charge during periods with lower electricity costs, thereby saving costs; after setting, ensure that the connection between the charging gun head and the vehicle charging port is stable, and the vehicle will automatically start charging according to the preset time; during the charging process, monitor the charging status through the application or the vehicle system, and adjust when necessary. If you need to cancel or change the reservation parameters midway, you can find the relevant options in the application to operate; set up a silicon carbide module to provide greater power density, reduce the size of the charging module, and increase the average peak efficiency by 97%; use a 720kW DC charging stack, flexible charging power allocation, compatible with intelligent dual-gun terminals and liquid-cooled terminals, use the new Star Ring power distribution technology to maximize utilization, take into account investment costs and efficiency, and use a glue filling process to reduce system failure rate; use a liquid-cooled charging gun with a thinner wire diameter and a larger charging current, supporting a maximum power of 900kW, and charging directly with a water cooling system to avoid the use of large-size cables, with a maximum current of 600A.

[0153] S50, the processing center compares the actual charging capacity of the vehicle battery with the chargeable capacity of the vehicle battery preset in the memory: if the standard is met, the payment is confirmed; if the standard is not met, the charging continues until it is fully charged;

[0154] It is further explained that the predetermined chargeable capacity of the vehicle battery is obtained through the intelligent charging control system, which is generally lower than the maximum capacity of the battery. Only the maximum capacity of a new battery just out of the factory is equal to the chargeable capacity of the vehicle. After the battery is charged and discharged many times, the chargeable capacity of the vehicle gradually becomes lower than the maximum capacity of the battery; when the battery is about to be scrapped, the chargeable capacity is only 1-5%, while the maximum capacity of a new battery is 100%.

[0155] S60. The payment service module deducts the charging fee on the payment platform registered by the driver according to the battery full information, and provides cleaning and returning service after charging.

[0156] See also Fig.12 As shown, the step S60 comprises the following steps:

[0157] S61, the payment selection unit selects the driver's preferred payment type by entering the payment platform and performs binding settings for subsequent payment settings, and transmits the information to the payment setting unit;

[0158] To further explain, when making an appointment for charging, users determine their preferred payment method through the charging platform on their mobile phones and third-party payment platforms such as Alipay, WeChat, UnionPay, and Cloud QuickPass, and bind their bank cards to these third-party payment platforms, and choose to pay in advance or after charging; users can also purchase charging packages on the platform in advance according to their charging needs, and then charge according to the charging time or number of times in the package; they can also choose to be charged according to the charging power, and users need to enter the vehicle's power before charging begins, and pay according to the charging power after charging is completed; they can also choose to pay with virtual currency; if there are special circumstances, for a small number of users who are elderly or do not know how to use the platform payment, they can choose manual methods such as cash payment, bank card / credit card swipe payment, mobile code scanning payment, and recharge card payment.

[0159] S62, setting the payment unit to determine the payment method of Alipay, WeChat or other platforms according to the payment type and whether to adopt prepayment before charging or deduction after charging, and transmit it to the payment monitoring unit;

[0160] Further explanation: users or drivers can choose payment methods through mobile applications or payment platforms or charging platforms. After selecting a charging station and starting charging, the mobile application or payment platform or charging platform will display the estimated charging fee. Users can complete payment directly in the application or payment platform or charging platform, including card payment, online payment, etc. Users can also choose a suitable payment method according to the prompts of the charging pile, including using charging cards and Alipay and WeChat payment on the mobile phone, or deducting fees after charging; the users can be drivers or car owners, or passengers, and anyone who provides payment services is a user.

[0161] S63, the payment monitoring unit monitors the charging progress and the continuity of the corresponding payment increment through the platform to ensure the accuracy of the billing system, and transmits it to the settlement payment unit;

[0162] It is further explained that after charging starts, the intelligent monitoring system uses advanced sensing technology and data analysis algorithms to detect key parameters such as the current and voltage of the charging pile in real time through sensors, calculate the amount of electricity consumed during charging, and determine the fees to be charged based on the preset rate standards. It tracks the power consumption during charging in real time and ensures accurate fee settlement; the wireless network monitoring system can not only realize simple card swipe charging and card swipe payment, but also monitor and troubleshoot the equipment of the charging controller and power management system; data interaction is carried out through the 3G / 4G network to achieve secure and encrypted electricity billing and amount data transmission, and the background center enables real-time query of current or historical information for users' mobile terminal APPs, and the SMS verification platform ensures the security of user information and recharged membership cards.

[0163] S64. After charging is completed, the settlement and payment unit automatically deducts the payment based on the billing amount through the driver's bound credit card, WeChat Pay or Alipay.

[0164] To further explain, charging piles or charging platforms or payment platforms all support mobile payment or credit card payment. Users need to make payment according to the instructions on the charging pile screen or the charging platform or payment platform. If they use mobile payment to scan the QR code to pay, or use a credit card to swipe the card reader on the charging pile to pay, they can also pay directly on the charging platform or third-party payment platform. Users can choose to automatically deduct money through a bound credit card, WeChat Pay or Alipay; if the account is not bound to a credit card or there is a problem with the credit card payment, the user can also directly scan the charging pile charging QR code and choose WeChat or Alipay to complete the payment; for the charging network platform, users can purchase charging packages on the platform in advance, and then use the charging time or number of times in the package to charge. The system can support multiple payment methods for payment.

[0165] It is further explained that the above-mentioned steps are displayed in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise clearly stated in this document, there is no strict order restriction for the execution of these steps. These steps can also be executed according to other orders, and some steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed and completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0166] Further explanation, the present invention is described according to the content implemented by the software program of the multifunctional charging pile control system, and each multifunctional charging pile control method is divided into several modules or units to implement the software program instructions generated by each step, and the software program instructions include the multifunctional charging pile control method described above. Most of the implementation of the above program is automated, of course, there are also a small number of actions that are semi-automated, and a very small part requires manual assistance to complete.

[0167] A multifunctional charging pile control system provided by the present invention also includes a computer-readable storage medium containing a memory; the memory stores a computer program, and when the functional modules execute the computer program, the steps of a multifunctional charging pile control method described in any one of the above are implemented; the computer-readable storage medium stores a computer program, and when the computer program is executed by the functional modules, the steps of a multifunctional charging pile control method described in any one of the above are implemented.

[0168] It is further explained that the computer program is divided into multiple modules / units, and the multiple modules / units are stored in the memory and executed by each module / unit to complete the present invention; the multiple modules / units can be a series of computer program instructions that can complete specific functions, and the instructions are used to describe the execution process of the computer program in each module / unit.

[0169] It is further explained that the present invention application is written with reference to part of the contents of the software copyrights of "Volkswagen Life Cloud Property Management Charging Settlement System (version number: V1.0, registration date: 2022.12.22)", "Cloud Spider Intelligent Payment Collection Platform (version number: V1.0, registration date: 2023.12.01)", and "Cloud Spider Intelligent Charging Operation System (version number: V1.0, registration date: 2024.12.07)" applied by our company, in order to protect the control software technology of the production process of high tensile and heat-resistant PBT materials.

[0170] A multifunctional charging pile control system provided by the present invention also includes a multifunctional charging pile control device, which is implemented by the multifunctional charging pile control method described above.

[0171] To further illustrate, the multifunctional charging pile control device is composed of the above-mentioned related equipment or devices. According to the needs of the charging pile enterprise, it can be made into a complete set of charging equipment with the charging pile, or it can be made into a unit device of each functional module belonging to each step or the entire control device. When charging, the charging pile can be connected to realize charging control of the charging pile. These equipment structures are not described in detail here.

[0172] The present invention also provides a multifunctional charging pile, which is realized by using the multifunctional charging pile control method described above.

[0173] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application can be modified or replaced by equivalents, and all should be included in the scope of protection of the present application.

Claims

1. A multifunctional charging pile control method, characterized in that: The method is applied to a multifunctional charging pile control system, which includes a charging selection module, a vehicle identification module, a charging configuration module, a charging implementation module, a payment service module, a wireless communication module, a memory, an alarm, a processing center, and an intelligent mobile terminal; the charging selection module, the vehicle identification module, the charging configuration module, the charging implementation module, the payment service module, the wireless communication module, the memory, and the alarm are respectively connected to the processing center; the smart phone, the tablet computer or the intelligent remote control is respectively connected to the wireless network of the wireless communication module within the range of a wireless network or the Internet; The method comprises the following steps: S10, before charging, the charging selection module obtains the location of the target charging station through the network map and makes an appointment for charging, navigates to the charging station, and passes it to the vehicle identification module; S20, the vehicle identification module configures and converts the charging parameters according to the vehicle license plate number, vehicle information and charging system information, and transmits them to the charging configuration module; S30, the charging configuration module automatically matches the required charging parameters according to the vehicle battery charging information to attempt charging to ensure subsequent formal smooth charging, and transmits it to the charging implementation module; S40, the charging module is implemented to charge the vehicle battery according to the configured charging parameters, and the actual capacity of the battery is obtained after it is fully charged, so as to subsequently determine whether the battery is fully charged, and transmit the result to the processing center; S50, the processing center compares the actual charged capacity of the vehicle battery with the chargeable capacity of the vehicle battery preset in the memory: if the standard is met, the payment is confirmed; if the standard is not met, the charging continues until it is fully charged; S60, the payment service module deducts the charging fee on the payment platform registered by the driver according to the battery full information, and provides a cleaning and returning service after charging, including the following steps: S61, the payment selection unit selects the driver's preferred payment type by entering the payment platform and performs binding settings for subsequent payment settings, and transmits the information to the payment setting unit; S62, setting the payment unit to determine the payment method of Alipay, WeChat or other platforms according to the payment type and whether to adopt prepayment before charging or deduction after charging, and transmit it to the payment monitoring unit; S63, the payment monitoring unit monitors the charging progress and the continuity of the corresponding payment increment through the platform to ensure the accuracy of the billing system, and transmits it to the settlement payment unit; S64. After charging is completed, the settlement and payment unit automatically deducts the payment based on the billing amount through the driver's bound credit card, WeChat Pay or Alipay.

2. A multifunctional charging pile control method as claimed in claim 1, characterized in that: The system further comprises: The wireless communication module is provided with a wireless network unit, which is responsible for sending and receiving wireless signals and automatically networking with the intelligent mobile terminal within the effective network range; The alarm device compares the actual charge capacity of the vehicle battery with the chargeable capacity of the vehicle battery preset in the memory, and automatically sounds an audible alarm and notifies to continue charging until it is fully charged if the charge capacity does not meet the standard. The memory is responsible for storing information of the charging selection module, the vehicle identification module, the charging configuration module, the charging implementation module, the payment service module, the wireless communication module, the alarm, and the storage of the chargeable amount of the vehicle battery; The processing center is responsible for the information transmission of the charging selection module, vehicle identification module, charging configuration module, charging implementation module, payment service module, wireless communication module, alarm, and memory. It is the hub of the system and compares the actual charging capacity of the vehicle battery with the vehicle battery chargeable capacity preset in the memory: if it meets the standard, the payment is confirmed; if it does not meet the standard, it is transmitted to the alarm and notified to continue charging until it is fully charged; The charging selection module includes a target acquisition unit, an energy utilization unit, an electric energy calculation unit, a cost calculation unit, and a charging reservation unit, which obtains the location of the target charging station through a network map, makes a reservation for charging, navigates to the charging station, and transmits it to the vehicle identification module; The vehicle identification module includes an information acquisition unit, an image processing unit, an angular second-order distance unit, a comparison calculation unit, a correlation calculation unit, an entropy value calculation unit, a contrast matrix unit, a character segmentation unit, and a license plate recognition unit, which is responsible for the subsequent configuration and conversion of charging parameters according to the vehicle license plate number, vehicle information and charging system information, and transmits them to the charging configuration module; The charging configuration module includes a gun head matching unit, an electric energy unit, a battery energy unit, a power adjustment unit, and a voltage matching unit, which are responsible for automatically matching the required charging parameters according to the vehicle battery charging information to conduct trial charging to ensure the subsequent formal smooth charging, and pass it to the charging implementation module; The charging implementation module includes a power calculation unit, a time calculation unit, a speed calculation unit, and a charging operation unit, which are responsible for charging the vehicle battery according to the configured charging parameters, and obtaining the actual capacity of the battery after it is fully charged, so as to subsequently determine whether the battery is fully charged and transmit it to the processing center; The payment service module includes a payment selection unit, a payment setting unit, a payment monitoring unit, and a settlement payment unit, which are responsible for deducting the charging fee on the payment platform registered by the driver according to the battery full information, and providing a cleaning and returning service after charging.

3. A multifunctional charging pile control method as claimed in claim 1, characterized in that: Described step S10, comprises the following steps: S11, the target acquisition unit obtains the nearest charging station with a moderate unit price and multiple rechargeable charging guns by connecting to the network map, and transmits it to the energy utilization unit; S12, the energy utilization unit calculates the vehicle energy utilization rate according to the formula "η E =η d *η j *η c *η l *η z *η q , η E is the vehicle energy utilization rate, η d , η j , η c , η l , η z , η q The energy utilization rate of the vehicle traveling to the target charging station is obtained by calculating the efficiency of battery discharge, motor, transmission system, road resistance utilization, gravity utilization, and driving force utilization, and is transmitted to the power calculation unit; S13, the electric energy calculation unit calculates the electric energy used by the vehicle according to the formula " W is the total power used by the vehicle to reach the charging station (kwh), ζ is the power coefficient, M is the total mass of the vehicle (T), S is the mileage from the vehicle's location to the charging station (km), is the energy consumption ratio (kWh / T / km), η E The total electric energy used by the vehicle to reach the charging station is obtained for the vehicle energy utilization rate, and is transmitted to the cost calculation unit; S14. The cost calculation unit obtains the charging station with the lowest cost according to the charging cost calculation formula of the charging station: "Cu=(Q1+1000W / U)*au, Cu is the charging cost (RMB), Q1 is the battery energy to be charged (mAh), W is the total power used by the vehicle to reach the charging station (kWh), U is the voltage of the charging station (V), and the charging unit price au (RMB / kWh)", and transmits it to the reservation charging unit; S15, the reservation charging unit reserves a charging gun at a target charging station through a smartphone application or a vehicle system setting or a control screen of the vehicle and navigates to the target charging station.

4. A multifunctional charging pile control method as claimed in claim 1, characterized in that: Described step S20, comprises the following steps: S21, the information collection unit obtains images or videos of different angles and directions of the vehicle to be charged through a high-definition camera set up at the charging station for subsequent preprocessing and transmits them to the image processing unit; S22, the image processing unit calculates the grayscale weighted average method according to the formula "R = G = B = (W r R+W g G+W b B) / 3” to obtain the grayscale vehicle image and perform denoising, enhancement, scaling preprocessing, and pass it to the angular second-order moment unit; S23, the angular second-order moment unit is calculated according to the grayscale energy formula "Asm = ∑ i ∑ j P(i,j) 2 , i and j are the indexes of gray levels respectively, and P(i, j) is the normalized gray level co-occurrence matrix element. The image of gray level distribution uniformity and texture coarseness is obtained and passed to the contrast calculation unit; S24, the contrast calculation unit calculates the contrast according to the contrast calculation formula "C ON =∑ i ∑ j (ij) 2 *P(i,j), i and j are the indexes of gray levels respectively, (ij) 2 To measure the distance difference between pixels, P(i,j) is the gray level co-occurrence matrix element. The image of the clarity and depth of the texture groove is obtained and passed to the relevant calculation unit; S25, the correlation calculation unit calculates the correlation formula according to i and j are the indexes of gray levels, P(i,j) is the element of gray-level co-occurrence matrix, μx and μy are the average values ​​of the rows and columns of gray-level co-occurrence matrix, respectively. The image of the similarity of gray levels in the row or column direction is obtained and passed to the entropy value calculation unit; S26, the entropy value calculation unit calculates the image entropy according to the formula "E NT =-∑i∑jP(i,j)*log(P(i,j)), i and j are the indexes of gray levels respectively, P(i,j) is the gray level co-occurrence matrix element” to obtain the image with information content and complexity, and pass it to the contrast matrix unit; S27, the contrast matrix unit calculates the image entropy according to the formula "I DM =∑i∑j(P(i,j) / [1+(ij) 2 ], P(i,j) is the element of the gray level co-occurrence matrix, (ij) 2 To measure the distance difference between pixels, an image of the texture clarity and regularity is obtained to obtain the license plate features of color, texture, and edge, and pass them to the character segmentation unit; S28, the character segmentation unit performs license plate location detection according to the license plate features in the image to obtain a license plate area image and segments each character on the license plate into individual characters through a template matching method, and transmits the characters to the license plate recognition unit; S29, the license plate recognition unit calculates the template matching formula "S(x,y) = ∑ i,j (T(i,j)-I(x+i,y+j)) 2 , S(x,y) is the score of template matching, T(i,j) is the pixel value in the template, and I(x+i,y+j) is the pixel value in the image to be matched. The license plate, vehicle, and battery information of the vehicle to be charged are obtained.

5. A multifunctional charging pile control method as claimed in claim 1, characterized in that: Described step S30, comprises the following steps: S31, the gun tip matching unit lifts the gun tip and aligns it with the charging socket, and then the gun tip replacement system automatically replaces the matching gun tip for insertion and connection, and transmits it to the power unit; S32, the power unit calculates the actual power consumption of the battery according to the formula "Q z =(f*m*g+C D *A*ρ*μr 2 / 2)*l,Q z is the actual power consumption during driving, f is the friction force, m is the total mass of the vehicle, g is the acceleration due to gravity, C D is the drag coefficient, A is the frontal area of ​​the vehicle, ρ is the air density, μr is the speed factor, and l is the driving distance. The actual electric energy consumed by the vehicle is obtained and transmitted to the battery energy unit; S33, the battery energy unit calculates the total power consumption of the battery according to the formula "Q e =Q z +η E *t*Pa+Pk*t,Q e is the actual total power consumption of the battery, Q z is the actual power consumption during driving, η is the efficiency factor, t is the battery discharge time, Pa is the power of the control system, and Pk is the power of the air conditioning system. The actual total power consumption of the vehicle is obtained and transmitted to the power adjustment unit; S34, the power adjustment unit adjusts the power according to the maximum charging power of the battery of the vehicle to be charged to match the power of the input battery, and transmits it to the voltage matching unit; S35. The voltage matching unit obtains the required charging voltage according to the voltage calculation formula "U=P / I, U is the charging voltage (V), P is the charging power (W), and I is the charging current (A)" to ensure charging safety and battery life.

6. A multifunctional charging pile control method as claimed in claim 1, characterized in that: The step S40 comprises the following steps: S41, the power calculation unit obtains the target charge amount according to the charge amount calculation formula "W2 = S*Ec, W2 is the charge amount that the vehicle should be charged for driving (kwh), S is the planned driving distance of the vehicle (km), and Ec is the unit energy consumption (kWh / km)", and transmits it to the time calculation unit; S42, the time calculation unit obtains the target charging amount according to the charging time calculation formula "t = W2 / P, t is the time required for charging (h), W2 is the charging amount of the vehicle (kwh), and P is the charging power (W)", and transmits it to the speed calculation unit; S43, the speed calculation unit obtains the actual charging speed during charging according to the charging speed calculation formula "C = U*I / t*ω / 1000, C is the actual charging speed (kwh / h), U is the input voltage during charging (V), I is the input current during charging (A), t is the time required for charging (h), ω is the circuit coefficient", and transmits it to the charging operation unit; S44, the charging operation unit timely inputs the system according to the predetermined charging amount, charging time, and charging speed, automatically charges during the period of low electricity cost, and obtains the real-time power in time.

7. A multifunctional charging pile control method as claimed in claim 1, characterized in that: The system also includes a computer-readable storage medium containing a memory; the memory stores a computer program, and when the functional modules execute the computer program, the steps of a multi-functional charging pile control method described in any one of claims 1 to 6 are implemented; the computer-readable storage medium stores a computer program, and when the computer program is executed by the functional modules, the steps of a multi-functional charging pile control method described in any one of claims 1 to 6 are implemented.

8. A multifunctional charging pile control method as claimed in claim 1, characterized in that: The system also includes a control device for a multifunctional charging pile, which is implemented by a multifunctional charging pile control method as described in any one of claims 1 to 7 above.

9. A multifunctional charging pile, characterized in that: This is achieved by using a multifunctional charging pile control method as described in any one of claims 1 to 8 above.

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