Charging piles and charging methods

Abstract

The present invention discloses a charging pile charging method, comprising: a receiving end reading user information; a docking end issuing a charging decision based on the user's selection; and the receiving end charging the vehicle after collecting the fee according to the user's selected solution. The present invention achieves the beneficial effects of providing an intelligent charging pile charging method, achieving convenient back-end charging and enabling vehicle owners to charge and settle their bills independently.

Description

Technical Field

[0001] The invention relates to a charging pile and a charging method thereof. Background Art

[0002] With the country's vigorous promotion of new energy electric vehicles and the accelerated construction of smart cities and smart communities, smart lamp poles and smart charging piles are becoming increasingly common. Smart charging piles are now an indispensable subsystem of electric vehicles and play a vital role in future travel.

[0003] The popularization of charging piles involves the issue of charging pile charges. How to allow electric car owners to charge and settle their bills independently is a key problem currently facing the industry.

[0004] Currently, charging station fees are typically charged through a user-to-large-scale system-to-installation process. The large-scale system's intervening debits the bill, dividing up some of the profits for the installers. This lack of clarity in the charging process has also led to a lack of enthusiasm for charging station deployment. Another type of charging station fee is card payment, which has drawbacks such as card demagnetization, forgotten cards, and card loss. Summary of the Invention

[0005] To solve the above problems, the present invention provides a charging pile, comprising:

[0006] A bottom plate, a screen cleaning mechanism, a protective mechanism, a charging pile body fixedly mounted on the top surface of the bottom plate, and a fixing column fixedly mounted on the top of the charging pile body;

[0007] A weather station is fixedly installed on the top of the fixed column, a lighting lamp is fixedly installed on one side of the fixed column, a camera is set at the bottom of the lighting lamp, the camera is fixedly connected to a fixing plate through a connecting strip, the fixing plate is fixedly connected to the side wall of the fixed column, an advertising screen is fixedly installed on one side of the fixed column, and a wireless connector is set on the top of the advertising screen, and the wireless connector is fixedly connected to the side wall of the fixed column;

[0008] The screen cleaning mechanism includes an electric push rod and a cleaning brush barrel. The outer shell of the electric push rod is fixedly connected to the front of the fixed column through a fixing seat. The end of the output shaft of the electric push rod is rotatably connected to a short shaft, and the end of the short shaft is fixedly sleeved with one end of the cleaning brush barrel. The cleaning brush barrel is located on the top of the advertising screen.

[0009] An operation interface is provided on the front of the charging pile body;

[0010] The charging station also includes:

[0011] A wireless communication interface is located in the fixed column and is used for data exchange with the outside world;

[0012] Wired data interface, located next to the operation interface, is used as the access point for internal data;

[0013] Overvoltage protection and leakage protection circuits are embedded in the internal circuit of the charging pile;

[0014] The alarm module is connected to the internal circuit of the charging pile and the wireless communication interface, and is used to interact with the outside world through the wireless communication interface when the internal circuit of the charging pile fails.

[0015] Among them, the wireless communication interface uses a wifi module or NB-IOT module to form information interaction with the external overall control system;

[0016] The wired data interface uses the SUB3.0 interface to interact with the internal data.

[0017] Furthermore, the protective mechanism includes a rubber soft plate, a sub-Velcro, a mother Velcro, a first magnetic sealing strip, a second magnetic sealing strip and a self-adhesive layer. One side of the rubber soft plate is bonded to the front of the charging pile body. The sub-Velcro, the first magnetic sealing strip and the self-adhesive layer are all bonded to the surface of the rubber soft plate, and several desiccant bags are bonded to the surface of the rubber soft plate. The mother Velcro and the second magnetic sealing strip are respectively bonded to the front of the charging pile body.

[0018] Furthermore, the bottom plate is a square structure, and four fixing holes distributed in a rectangular array are opened on the surface of the bottom plate.

[0019] Furthermore, the operation interface is provided with a charging interface, and the charging interface is embedded and installed on the front side of the charging pile body.

[0020] Furthermore, a reinforcing rib plate is fixedly installed at the connection between the connecting strip and the fixing plate, and the reinforcing rib plate is a right-angled triangle structure.

[0021] Furthermore, there are two fixing seats, and the fixing seats are fixedly engaged with the electric push rod;

[0022] The short shaft is vertically arranged with the electric push rod, and the short shaft is a cylindrical structure.

[0023] Furthermore, a bearing is fixedly sleeved on one end of the short shaft away from the cleaning brush cylinder, and the bearing is fixedly engaged with the output shaft of the electric push rod.

[0024] Furthermore, the sub-velcro, the mother Velcro, the first magnetic sealing strip and the self-adhesive layer are all C-shaped structures, and the first magnetic sealing strip is located between the sub-velcro and the self-adhesive layer.

[0025] Furthermore, the first magnetic sealing strip and the second magnetic sealing strip have the same geometric dimensions; the connecting strip is a J-shaped structure, and one end of the connecting strip is arranged perpendicular to the fixing plate.

[0026] Furthermore, a reading interface is provided in the hardware port of the charging pile; the reading interface is used to read data from the charging port of the battery to be charged, which at least includes parameters corresponding to the battery to be charged.

[0027] The above charging pile structure is also matched with a charging method.

[0028] Charging station charging methods include:

[0029] The receiving end reads the user information;

[0030] The docking terminal collects the power information of the charging object and makes corresponding charging decisions;

[0031] The receiving end charges the fee according to the plan selected by the user and then charges.

[0032] Furthermore, the docking end includes:

[0033] The hardware port is equipped with a power meter module for obtaining the model and remaining power value of the battery connected to the hardware port. When reading, the data in the battery is obtained. If the battery model used is recorded in the database, the relevant data can be directly retrieved. If it does not exist in the database, normal charging is performed.

[0034] The calibration module compares the battery model of the hardware port with the stored battery data, finds the battery power data, and calculates the estimated charging time of the fully charged state based on the remaining power value;

[0035] The correction module monitors the rate of change of battery charge and periodically corrects the remaining charging time data.

[0036] Furthermore, the docking end further includes:

[0037] The first storage module is used to store the battery model and battery parameters;

[0038] The second storage module is used to record the ratio of the estimated charging time to the actual charging time during each charging process to form a database, where each set of data contains the first type of information and the second type of information;

[0039] The first type of information is a data group that uses hardware ports as a classification standard, and the second type of information is a data group that uses charging port data as a classification standard.

[0040] Furthermore, charging pile charging methods include:

[0041] The monitoring end is connected to the docking end and retrieves all charging records of the docking end;

[0042] The charging records are classified based on the first type of information to form the first type of database, which records the charging and discharging frequency of the same charging pile;

[0043] The charging records are classified according to the second type of information to form a second type of database, which records the usage information data of the same rechargeable battery;

[0044] The monitoring end monitors the first type of database to maintain the corresponding charging piles;

[0045] The monitoring end monitors the second type of database to monitor the usage status of the corresponding charging equipment.

[0046] Furthermore, when the correction module monitors the rate of change of the battery charge, when the rate of change is higher than a preset threshold, the second type of information of the charging port of the battery to be charged is recorded and transmitted to the monitoring end.

[0047] Furthermore, charging pile charging methods include:

[0048] The control module is located in the hardware port and is used to control the hardware port to control the charging time of the charging terminal.

[0049] Furthermore, charging decisions include:

[0050] If the charging port in the second type of information can be identified, it will be displayed as follows:

[0051] The first type of solution is selected based on the charging time;

[0052] The second type of plan is selected based on the required driving distance;

[0053] The third type of plan is to choose the time required to fill it;

[0054] If the charging port in the second type of information cannot be identified, the following will be displayed:

[0055] The first type of solution is selected based on the charging time;

[0056] The second type of plan is selected based on the required driving distance;

[0057] Among them, the driving distance of the second type of solution is converted into charging time in the control module.

[0058] Furthermore, after the background of the receiving end collects the corresponding fee which is not less than the decision plan selected by the user, the control module is started to charge the charging end.

[0059] Furthermore, the calibration module estimates the charging time by:

[0060] Information data acquisition: after receiving the information from the calibration module, the number of charge and discharge cycles of the battery module, real-time temperature data, discharge current data, the difference between the current power value and the power experience standard value, and the battery capacity are obtained;

[0061] Charge and discharge data calculation: calculate the current battery charge and discharge rate based on the information data obtained above;

[0062] The estimated display shows the full charge data after calculating the charge and discharge data on the display screen of the charging station.

[0063] The beneficial effects achieved by the present invention include providing an intelligent charging method for charging piles, achieving the convenience of back-end charging, and enabling car owners to charge and settle their bills independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0065] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0066] Figure 2 This is a schematic diagram of the bottom plate structure of the present invention;

[0067] Figure 3 This is a top view of the advertising screen and cleaning brush cylinder of the present invention;

[0068] Figure 4 It is a flow chart of the battery soc algorithm of the present invention;

[0069] Figure 5 yes Figure 4 Schematic diagram of the first-order RC battery equivalent circuit involved.

[0070] Figure 6 It is a module diagram of the charging method;

[0071] Figure 7 It is a scheme diagram of charging selection;

[0072] Figure 8 This is another diagram of charging options;

[0073] Figure 9 This is a schematic diagram of other interfaces in the charging selection.

[0074] In the figure: 1- bottom plate, 2- charging pile body, 3- operation interface, 4- rubber soft board, 5- sub- Velcro, 6- first magnetic sealing strip, 7- self-adhesive layer, 8- desiccant bag, 9- second magnetic sealing strip, 10- main Velcro, 11- fixing hole, 12- fixing column, 13- advertising screen, 14- cleaning brush cylinder, 15- electric push rod, 16- fixing seat, 17- weather station, 18- wireless connector, 19- lighting, 20- fixing plate, 21- camera, 22- connecting strip, 23- reinforcing rib plate, 24- short axis. DETAILED DESCRIPTION

[0075] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0076] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0077] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0078] The function of a charging pile is similar to that of a gas pump in a gas station. It can be fixed on the ground or on the wall and installed in parking lots or charging stations in public buildings and residential areas. It can charge various types of electric vehicles according to different voltage levels.

[0079] Conventional charging piles may have limited functions and can only be used to charge electric vehicles. When not charging, the charging port on the charging pile surface may be exposed to the outside world, allowing dust, moisture, or rain to enter, potentially affecting charging. The charging port may also require manual cleaning. Therefore, to address the above issues, a multifunctional charging pile structure is proposed.

[0080] See also Figure 1-3As shown, a multifunctional charging pile structure includes a base plate 1, a screen cleaning mechanism, a protective mechanism, a charging pile body 2 fixedly mounted on the top surface of the base plate 1, and a fixed column 12 fixedly mounted on the top of the charging pile body 2. A weather station 17 is fixedly mounted on the top of the fixed column 12. The weather station 17 can monitor the ambient temperature, humidity, air pressure, wind speed, wind direction, PM2.5, and noise in real time, conduct early warning analysis, and collect environmental data and upload it to the cloud server to display the environmental information in real time. A fixed column 12 is fixedly mounted on one side. A lighting lamp 19 is provided at the bottom thereof with a camera 21, which is fixedly connected to a fixing plate 20 via a connecting strip 22. The fixing plate 20 is fixedly connected to the side wall of the fixing column 12. An advertising screen 13 is fixedly mounted on one side of the fixing column 12, and a wireless connector 18 is provided on the top of the advertising screen 13. The advertising screen 13 is an LED display capable of displaying information. The wireless connector 18 is fixedly connected to the side wall of the fixing column 12. The wireless connector 18 is a wireless access point with a built-in omnidirectional antenna. The open air communication range radius is 200 meters, and communication is possible.

[0081] The screen cleaning mechanism includes an electric push rod 15 and a cleaning brush barrel 14. The outer shell of the electric push rod 15 is fixedly connected to the front of the fixed column 12 through a fixing seat 16. The end of the output shaft of the electric push rod 15 is rotatably connected to a short shaft 24, and the end of the short shaft 24 is fixedly sleeved with one end of the cleaning brush barrel 14. The cleaning brush barrel 14 is located on the top of the advertising screen 13 and can roll along the surface of the advertising screen 13 to clean it.

[0082] An operation interface 3 is provided on the front of the charging pile body 2, and the protective mechanism includes a rubber soft plate 4, a sub-Velcro 5, a mother Velcro 10, a first magnetic sealing strip 6, a second magnetic sealing strip 9 and a self-adhesive layer 7. One side of the rubber soft plate 4 is bonded to the front of the charging pile body 2, and the sub-Velcro 5, the first magnetic sealing strip 6 and the self-adhesive layer 7 are all bonded to the surface of the rubber soft plate 4, and several desiccant bags 8 are bonded to the surface of the rubber soft plate 4. The mother Velcro 10 and the second magnetic sealing strip 9 are respectively bonded to the front of the charging pile body 2, and the rubber soft plate 4 covers the operation interface 3 for protection.

[0083] The bottom plate 1 is a square structure, and the surface of the bottom plate 1 is provided with four fixing holes 11 distributed in a rectangular array, and the bottom plate 1 is connected to the ground through the fixing holes 11; the operation interface 3 is provided with a charging interface, and the charging interface is installed in a chimerical manner with the front of the charging pile body 2, and the charging interface can be connected for charging; a reinforcing rib 23 is fixedly installed at the connection between the connecting strip 22 and the fixing plate 20, and the reinforcing rib 23 is a right-angled triangle structure, and the reinforcing rib 23 provides reinforcement for the connection between the connecting strip 22 and the fixing plate 20; there are two fixing seats 16, and the fixing seat 16 is fixedly chimerically connected to the electric push rod 15, and the fixing seat 16 provides installation for the electric push rod 15; the short shaft 24 is vertically arranged between the electric push rod 15, and the short shaft 24 is a cylindrical structure, and the electric push rod 15 is used to carry The short shaft 24 is movable to move; the end of the short shaft 24 away from the cleaning brush barrel 14 is fixedly sleeved with a bearing, and the bearing is fixedly engaged with the output shaft of the electric push rod 15, and the bearing realizes the rotational connection between the short shaft 24 and the electric push rod 15; the sub-Velcro 5, the mother Velcro 10, the first magnetic sealing strip 6 and the self-adhesive layer 7 are all C-shaped structures, and the first magnetic sealing strip 6 is located between the sub-Velcro 5 and the self-adhesive layer 7, so that the rubber soft board 4 covers the charging pile body 2 for connection; the first magnetic sealing strip 6 and the second magnetic sealing strip 9 have the same geometric dimensions, and the first magnetic sealing strip 6 and the second magnetic sealing strip 9 are adsorbed and connected by magnetic force; the connecting strip 22 is a J-shaped structure, and one end of the connecting strip 22 is perpendicular to the fixed plate 20, and the connecting strip 22 is used for the installation of the camera 21.

[0084] When the present invention is in use, the electrical components appearing in this application are all externally connected to the power supply and control switch. The bottom plate 1 is installed on the ground through the fixing hole 11. When charging, the rubber soft plate 4 is manually uncovered, the sub-Velcro 5 and the mother Velcro 10 are separated, the first magnetic sealing strip 6 and the second magnetic sealing strip 9 are separated, the self-adhesive layer 7 is not stuck to the surface of the charging pile body 2, and the charging interface is exposed to the outside world, so that charging can be carried out. Monitoring and recording are achieved through the camera 21. At night, the lighting 19 can provide lighting for people, and advertisements can be displayed through the advertising screen 13. When not in use, the rubber soft plate 4 is covered on the operation interface 3, the sub-Velcro 5 and the mother Velcro 10 are bonded together, the first magnetic sealing strip 6 and the second magnetic sealing strip 9 are adsorbed together, and the self-adhesive layer 7 is bonded to the surface of the charging pile body 2, providing a relatively closed environment for the operation interface 3, providing dust and moisture protection, and at the same time cooperating with the drying effect of the desiccant bag 8 to prevent moisture from entering the charging interface, thereby playing a protective role.

[0085] Dust adheres to the surface of the advertising screen 13. The electric push rod 15 can be extended and retracted to drive the cleaning brush cylinder 14 to move. The cleaning brush cylinder 14 moves along the surface of the advertising screen 13 to clean it, avoiding manual cleaning and reducing labor intensity.

[0086] In the above-mentioned charging pile body 2, in addition to adopting relevant structures to make the charging structure of the body more durable, the interior of the body 2 includes a built-in charging circuit and a docking terminal, wherein the docking terminal is provided with the first type of information, and a control module is provided in the charging circuit to control the on and off of the entire charging circuit, which is similar to the function of a switch. Only after the user has paid the fee, the control module will form a path, and charging can then be carried out.

[0087] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art without further elaboration.

[0088] The charging pile structure described above is also matched with a charging method.

[0089] Charging is done in three steps:

[0090] 1) The receiving end reads the user information, and the user establishes data connection with the system in the charging pile by scanning a code;

[0091] 2) The docking terminal collects the power information of the charging object and makes corresponding charging decisions;

[0092] 3) The receiving end charges the fee according to the plan selected by the user and then charges.

[0093] As a specific embodiment, the docking end includes:

[0094] The hardware port has an internal power meter module that is used to obtain the model and remaining power of the battery connected to the hardware port. When reading, the data is obtained by reading the data inside the battery. If the battery model used is recorded in the database, the relevant data can be directly retrieved. If it is not in the database, normal charging is performed. During the data retrieval process, data is exchanged with the main control console via the WiFi module or NB-IOT module.

[0095] The calibration module compares the battery model of the hardware port with the stored battery data, finds the battery power data, and calculates the estimated charging time of the fully charged state based on the remaining power value;

[0096] The correction module monitors the rate of change of battery charge and periodically corrects the remaining charging time data. Generally, the correction module will not affect the data, but only plays a monitoring role. Once a battery abnormality is detected, it will be displayed in the display module in time, asking the user whether to stop charging.

[0097] The power meter module uses the following method to calculate the remaining power value:

[0098] Here, the circuit to be detected (i.e., the battery to be charged) is equated to a first-order RC battery equivalent circuit, and the calculation formulas for the relevant parameters are obtained by performing data inverse deduction.

[0099] The circuit includes measuring terminal voltage V terminal With current I terminal ; Power represents the battery open circuit voltage V oc , the series resistor represents the internal resistance of the battery R, ​​and the voltage of the series resistor is V R , the RC circuit includes the double layer capacitor C dl and the charge transfer resistor R ct , the voltage of the double layer capacitor is V dl The following section analyzes this equivalent circuit to derive its differential equation and discretizes it so that it can be applied to the least squares method and embedded real-time systems.

[0100] From the circuit characteristics, we can get the following differential equation:

[0101] V terminal =V oc +V R +V dl (1)

[0102] V R =R*I terminal (2)

[0103]

[0104] Substituting (2) into (1), we get (4) V terminal =V oc +R*I terminal +V dl (4).

[0105] Derivative (4) and assume that the open circuit voltage V oc It is constant in a short time, and we get formula (5)

[0106] Divide both sides of formula (4) by R ct C dl , we get formula (6)

[0107] Adding equation (5) and equation (6) yields equation (7):

[0108]

[0109] Divide both sides of formula (3) by C dl Substituting into (7), we get (8):

[0110]

[0111] Discretize equation (8) with sampling time T, and get equation (9):

[0112]

[0113] The form (10) that can be recursively calculated is obtained:

[0114] V terminal (k)=θ1*V terminal (k-1)+θ2*I terminal (k)+θ3*I terminal (k-1)+θ4(10).

[0115] The estimated value of the terminal voltage at the current moment V terminal (k) can be obtained from the terminal voltage V iterated at the previous moment terminal (k-1), the current sampling I at the current moment terminal (k), the current sampling I at the previous moment terminal (k-1) polynomial expression;

[0116] The four parameters are θ2=R;

[0117] Rewriting (10) into the form of vector product, we get (11)

[0118] Based on the above analysis, the actual operation of this method is as follows:

[0119] 1) Initialize the correlation matrix P(0) and parameter vector θ(0):

[0120] θ(0)=|0 0 0 0|.

[0121] 2) Obtain the battery terminal voltage V through the sensor m And the current value I m , the sampling period is T, and the kth data is recorded as V m (k) and I m (k), and the initial terminal voltage of the battery V m (0) = 0, the terminal voltage of the battery is I m (0)=0.

[0122] To determine the enabling conditions of this algorithm, that is, to achieve sufficient current excitation conditions, the parameter identification of the algorithm is meaningful; specifically, according to the current value I obtained in step 1) terminal (k) Data is judged based on the following criteria:

[0123] i) The current needs to be greater than a certain value, that is, the battery is in a charging state;

[0124] ii) The change in current needs to be greater than a certain value; a constant current cannot stimulate dynamic changes in the battery;

[0125] If the above two conditions are not met at the same time, return to step 1) to obtain again; if both conditions are met at the same time, proceed to the next step;

[0126] 3) Calculate vector

[0127] 4) Calculate the gain vector λ is the forgetting factor, and in the embodiment, λ=0.98, where P(k) is a fourth-order matrix;

[0128] 5) Calculate the measurement and estimation error e(k) = V m (k)-V terminal (k),

[0129] 6) Update the parameter vector θ(k) = θ(k-1) + K(k)·e(k), where θ(k) = |θ1 θ2 θ3 θ4|. Calculate the battery parameters based on θ(k):

[0130] Battery open circuit voltage Battery internal resistance R = θ2, charge transfer resistance Double-layer capacitors

[0131] 7) Determine the rationality of the following conditional parameters:

[0132] i) Determine the degree of parameter convergence and the accuracy of parameter identification. When the objective function J(θ) is less than the set value, the parameters are considered to have converged;

[0133] ii) Determine V oc Reasonableness: Get the average terminal voltage V in the stage of zero current avg , open circuit voltage V oc Meet V avg -·V<V oc <V avg +·V is considered reasonable, ·V is determined based on empirical values, and in the embodiment, ·V=10V.

[0134] iii) Judgment Reasonableness: open circuit voltage V oc It is only related to the battery state of charge, and its change satisfy considered reasonable;

[0135] When the above three conditions are met at the same time, the circuit parameters are considered reasonable and the next step is performed; otherwise, the parameter matrix is ​​not updated and the process returns to step 1).

[0136] 8) Update the correlation matrix

[0137] 9) Calculate the battery SOC estimated based on the open circuit voltage according to the SOC-OCV curve.

[0138] After obtaining the battery soc, it plays an extremely critical role in providing a charging solution for the subsequent system.

[0139] As a specific embodiment, the calibration module includes the following steps when estimating the charging time:

[0140] Information data acquisition: after receiving the information from the calibration module, the number of charge and discharge cycles of the battery module, real-time temperature data, discharge current data, the difference between the current power value and the power experience standard value, and the battery capacity are obtained;

[0141] Charge and discharge data calculation: calculate the current battery charge and discharge rate based on the information data obtained above;

[0142] The estimated display shows the full charge data after calculating the charge and discharge data on the display screen of the charging station.

[0143] For charge and discharge data calculation, when the user plugs the charging port into the device, the charging port will perform a charge and discharge test on the rechargeable battery within a cycle after a safety time (this safety time is to ensure that the charging port is paired and the user is away from the charging port. The specific duration may be around 20 seconds, set based on actual experience). During this time, the charging port will test the rechargeable battery for a cycle to obtain the battery's charge and discharge rate. The duration of this cycle is extremely short and has almost no effect on the battery's charge capacity.

[0144] After obtaining the battery's charge and discharge rate, as well as the remaining power value, we can directly get a clear data on the time it takes to fully charge, so that we can make a charging decision.

[0145] As a specific embodiment, the charging decision in this solution includes:

[0146] If the charging port in the second type of information can be identified, that is, if the battery data can be obtained, the following will be displayed:

[0147] The first type of solution is to select based on the charging time. In this embodiment, the option of an integer number of hours is used.

[0148] The second option is to choose based on the required driving distance, such as 50 kilometers.

[0149] The third type of solution is to select based on the time required for full charge. Through the battery SOC obtained previously, the time required for full charge can be directly obtained according to the current charging rate.

[0150] If the charging port in the second type of information cannot be identified, the following will be displayed:

[0151] The first type of solution is selected based on the charging time;

[0152] The second type of plan is selected based on the required driving distance;

[0153] Among them, the driving distance of the second type of solution is converted into charging time in the control module.

[0154] For users, the first, second and third types of solutions are all directly displayed in the display module, but for the system internally, the driving distance of the second type of solution will be converted into charging time in the control module.

[0155] The display module shows the charging plan. After the user makes a selection and pays the fee, the control module will form a path for the charging circuit and power it on.

[0156] As a specific embodiment, the display module adopts an application program, and the user downloads or follows the corresponding application program on the mobile phone to form data interaction with the corresponding charging pile.

[0157] As another specific embodiment, the display module adopts a solution in which a display screen is provided on the charging pile. The user operates on the display screen and scans the code to pay the relevant fees, thereby forming data interaction with the corresponding charging pile.

[0158] In addition, the second type of solution requires the support of big data, and this solution has this technical solution.

[0159] First, the hardware port contains the first type of information. The charging port for the battery to be charged contains the second type of information, which includes at least basic data such as the corresponding rechargeable battery model. Both the first and second types of information are unique and enclosed in data packets, which can only be read but not modified.

[0160] Secondly, the docking end also includes:

[0161] The first storage module is used to store the battery model and battery parameters;

[0162] The second storage module is used to record the ratio data of the estimated charging time to the actual charging time during each charging process to form a database, and each set of data contains information of the first category and the second category.

[0163] Furthermore, charging pile charging methods include:

[0164] The monitoring end is connected to the docking end and retrieves all charging records of the docking end;

[0165] The charging records are classified based on the first type of information to form the first type of database, which records the charging and discharging frequency of the same charging pile;

[0166] The charging records are classified according to the second type of information to form a second type of database, which records the usage information data of the same rechargeable battery;

[0167] The monitoring end monitors the first type of database to maintain the corresponding charging piles. When the charging and discharging frequency of the same charging pile is relatively high, it means that the charging pile or the charging area is used more frequently and requires a shorter regular maintenance cycle by the staff.

[0168] The monitoring end monitors the second type of database to monitor the usage status of the corresponding charging equipment. For the same rechargeable battery, the greater the amount of information, the higher the utilization rate of the battery, and thus the shorter the maintenance cycle, or even the scrapping cycle.

[0169] Of course, other information can also be obtained through specific data, such as forming a heat map based on the frequency of use, graphically displaying the frequency of use, and through monitoring the battery data, forming the battery life, and the impact of the frequency of battery use on battery life, etc., all of which can be analyzed from the data.

[0170] Furthermore, to improve battery safety, the correction module monitors the rate of change of the battery charge. If the rate of change exceeds a set threshold, indicating excessive internal resistance, the module records the second type of information from the charging port of the battery to be charged and transmits it to the monitoring terminal. Depending on the difference in rate of change relative to the threshold, two approaches are generally adopted. If the difference exceeds a set warning value, the user is directly notified that charging is prohibited and is required to replace the vehicle. If the difference is below the warning value, the vehicle is locked after the current user has used it, prohibiting other users from using it again. Staff then repair and replace the vehicle's battery.

[0171] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A charging method for a charging pile, characterized by: The hardware port of the charging pile is provided with a reading device; the reading device is used to read the data of the charging port of the battery to be charged, which at least includes the parameters of the corresponding battery to be charged. The charging method of the charging pile includes: the receiving end reads the user information; the docking end collects the power information of the charging object and gives a corresponding charging decision; the receiving end charges the fee according to the user's selected plan and then charges; the docking end includes: a hardware port, which is internally provided with a power meter module for obtaining the model and remaining power value of the battery docked to the hardware port; when reading, the data in the battery is obtained, and if the battery used is one of the batteries in the database If the model is recorded, the relevant data can be directly called up. If it does not exist in the database, conventional charging is performed; the calibration module compares the battery data stored in the hardware port with the battery model, finds the battery power data, and calculates the estimated charging time of the full charge state according to the remaining power value; the correction module monitors the rate of change of the battery power and periodically corrects the remaining charging time data; the docking terminal also includes: a first storage module for storing the battery model and battery parameters; a second storage module for recording the ratio of the estimated charging time to the actual charging time during each charging process According to the data, a database is formed, and each group of data includes a first type of information and a second type of information; wherein, the first type of information is a data group with the hardware port as the classification standard, and the second type of information is a data group with the charging port data as the classification standard; the charging pile charging method includes: a monitoring end is connected to the docking end, and retrieves and records all charging records of the docking end; the charging records are classified according to the first type of information to form a first type of database, recording the charging and discharging frequency of the same charging pile; the charging records are classified according to the second type of information to form a second type of database, recording the usage information data of the same rechargeable battery; the monitoring end Monitor to maintain the corresponding charging pile; the monitoring end monitors the second type of database to monitor the usage status of the corresponding charging equipment. The proofreading module estimates the charging time, including: information data acquisition, after receiving the information from the proofreading module, obtaining the number of charge and discharge cycles of the battery module, real-time temperature data, discharge current data, the difference between the current power value and the power experience standard value, and battery capacity; charge and discharge data calculation, according to the content of the above information data, calculate the current charge and discharge rate of the battery; estimated display, displaying the full charge data after the charge and discharge data calculation on the display screen of the charging pile.

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