Intelligent charging control method and system and intelligent control socket

Abstract

The invention discloses an intelligent charging control method and system and an intelligent control socket, and the method comprises the steps: obtaining the charging state data of charging equipment, and drawing a first charging current curve; when a plurality of charging devices are charged at the same time, the first charging current curves of all the charging devices are accumulated based on time, and a total charging current curve is determined; determining the part, greater than the rated current of the power supply line, of the total charging current curve as a first power supply current curve, and determining a corresponding first time interval; dividing the first time interval into a plurality of second time intervals; adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line; and after all the second time intervals are analyzed, determining a second charging current curve of each charging device, and adjusting the output current of the corresponding intelligent control socket. According to the invention, the charging stability is improved by adjusting the charging current of the multiple charging devices.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and more specifically, to an intelligent charging control method, system and intelligent control socket. Background Art

[0002] With the development of science and technology, smart home devices are becoming more and more popular. As an important part of smart home, smart sockets are widely used in homes, offices and other places. However, most smart sockets on the current market only have basic switch control functions, and the charging protection function for charging devices is relatively weak. They cannot effectively prevent battery damage or safety hazards caused by overcharging. There are risks such as overcharging and overheating, which not only affect the battery life, but may also cause safety accidents such as fire.

[0003] In addition, most existing charging solutions lack personalized charging strategies for specific device characteristics and fail to effectively integrate IoT technology for real-time monitoring and intelligent regulation. For example, when multiple charging devices are charged through a smart socket, it is impossible to ensure that each charging device is charged according to the set charging strategy, resulting in charging current fluctuations and instability.

[0004] Therefore, the prior art has defects and is in urgent need of improvement. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide an intelligent charging control method, system and intelligent control socket. When multiple charging devices are charged through the intelligent control socket at the same time, the charging current of the charging devices can be adjusted to improve the charging stability and reduce the load on the power supply line.

[0006] A first aspect of the present invention provides an intelligent charging control method, comprising:

[0007] Obtain charging status data of charging equipment;

[0008] Analyze the charging status data of the charging device and draw a first charging current curve of the charging device;

[0009] When there are multiple charging devices charging at the same time, a coordinate axis is established with the horizontal axis being the charging current and the vertical axis being the time, the first charging current curves of all the charging devices are input into the coordinate axis, and the first charging current curves of all the charging devices are accumulated based on time to determine a total charging current curve;

[0010] Comparing the total charging current curve with the rated current of the power supply line, marking a portion of the total charging current curve that is greater than the rated current of the power supply line, and determining a first power supply current curve;

[0011] Determining the time interval corresponding to the first supply current curve as a first time interval;

[0012] dividing the first time interval into a plurality of second time intervals based on a preset time interval;

[0013] adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line;

[0014] After all second time interval analyses are completed, determining a second charging current curve for each charging device;

[0015] The output current of the corresponding intelligent control socket is adjusted according to the second charging current curve of each charging device.

[0016] In this solution, the step of analyzing the charging status data of the charging device and drawing a first charging current curve of the charging device includes:

[0017] Analyze the charging status data of the charging device to determine the device type and charging parameters of the charging device; the charging parameters include at least battery capacity, charging current, charging voltage, and power before charging;

[0018] A charging strategy is formulated according to the charging parameters of the charging device in combination with the charging preference set by the user, and a first charging current curve of the charging device is generated.

[0019] This plan also includes:

[0020] Calculating a first average charging current in each second time interval by using the total charging current curve;

[0021] Calculating a second average charging current of each charging device in each second time interval according to a first charging current curve of the charging device;

[0022] The plurality of second time intervals are sorted in descending order according to the first average charging current; when there are second time intervals with the same average power supply power, they are sorted in chronological order.

[0023] In this solution, the charging current of each charging device in each second time interval is adjusted based on the rated current of the power supply line, including:

[0024] Acquire charging impact data of each charging device in the second time interval based on the start time of the second time interval; the charging impact data at least includes the power before charging, the estimated charging end time, the charging start time, the cumulative charging power at the start time of the second time interval, and the cumulative charging time;

[0025] Calculating a charging weight of each charging device according to the charging impact data of each charging device in the second time interval;

[0026] Calculate the ratio of the charging weight of each charging device to the maximum charging weight of all charging devices, and determine the charging adjustment rate of each charging device;

[0027] Sort the charging devices in ascending order based on the charging adjustment rate, analyze each charging device in turn according to the sorting order, multiply the second average charging current of each charging device by the corresponding charging adjustment rate, and determine the adjusted second average charging current of each charging device in the current second time interval;

[0028] Update the first average charging current adjusted in the current second time interval based on the second average charging current adjusted in the current second time interval of the charging device;

[0029] When the adjusted first average charging current is less than the rated current of the power supply line, the adjustment of the second average charging current of the charging device in the current second time interval is terminated;

[0030] The corresponding first charging current curve and the predicted charging end time are updated according to the second average charging current of the charging device adjusted in the current second time interval.

[0031] This solution also includes a method for calculating the charging weight of the charging device expressed as follows:

[0032]

[0033] Among them, P n(a) is the charging weight of charging device a in the second time interval n, Q 0(a) The power before charging the charging device a, Q n(a) is the cumulative charging power of charging device a at the start time of the second time interval n, Q max(a) is the rated battery capacity of charging device a, T n(a) is the cumulative charging time of the charging device a at the start time of the second time interval n, t 1(a) is the estimated charging end time of charging device a, t 0(a) is the charging start time of charging device a, k1, k2 and k3 are all influencing factors of charging weight.

[0034] This plan also includes:

[0035] Determine the predicted charging end time of the charging device as the start time of the corresponding third time interval;

[0036] Determine the estimated pickup time based on the historical charging data of the charging device;

[0037] The power of the charging device at the predicted charging end time is set to a first preset power, a charging simulation is performed based on the first preset power, and a simulated charging end time is determined;

[0038] Compare the estimated access time, the simulated charging end time and the maximum continuous charging time of the charging device, and determine the minimum time as the end time of the third time interval;

[0039] The warning time is calculated according to the charging start time of the charging device, the start time and the end time of the third time interval;

[0040] t y =(1-k y )(t1-t0)+k y (t2-t0)+t0;

[0041] Among them, t y is the warning time, t0 is the charging start time of the charging device, t1 is the start time of the third time interval, t2 is the end time of the third time interval, k y is the influencing factor of the warning time.

[0042] This plan also includes:

[0043] When the predicted charging end time of the charging device is greater than or equal to the corresponding warning time, the adjustment of the first charging current curve of the charging device is terminated.

[0044] This plan also includes:

[0045] When a charging device has finished charging or a new charging device is added, resulting in a change in the number of charging devices, the output current of the corresponding intelligent control socket is readjusted according to the first charging current curve of each charging device.

[0046] A second aspect of the present invention provides an intelligent charging control system, comprising:

[0047] A data acquisition module, used to acquire charging status data of a charging device;

[0048] A first analysis module, configured to analyze the charging state data of the charging device and draw a first charging current curve of the charging device;

[0049] A second analysis module is used to establish a coordinate axis with a horizontal axis of charging current and a vertical axis of time when multiple charging devices are charged at the same time, input the first charging current curves of all charging devices into the coordinate axis, and accumulate the first charging current curves of all charging devices based on time to determine a total charging current curve;

[0050] a third analysis module, configured to compare the total charging current curve with the rated current of the power supply line, mark the portion of the total charging current curve that is greater than the rated current of the power supply line, and determine a first power supply current curve; determine a time interval corresponding to the first power supply current curve as a first time interval; and divide the first time interval into a plurality of second time intervals based on a preset time interval;

[0051] A charging current curve adjustment module, configured to adjust the charging current of each charging device in each second time interval based on the rated current of the power supply line; and determine the second charging current curve of each charging device when all second time intervals are analyzed;

[0052] The charging current control module is used to adjust the output current of the corresponding intelligent control socket according to the second charging current curve of each charging device.

[0053] A third aspect of the present invention provides an intelligent control socket, wherein the storage medium of the intelligent control socket includes an intelligent charging control method program, and when the intelligent charging control method program is executed by a processor, the steps of the intelligent charging control method as described above are implemented.

[0054] The present invention discloses an intelligent charging control method, system and intelligent control socket, the method comprising: obtaining charging status data of a charging device and drawing a first charging current curve; when there are multiple charging devices charging at the same time, accumulating the first charging current curves of all charging devices based on time to determine the total charging current curve; determining the part of the total charging current curve that is greater than the rated current of the power supply line as the first power supply current curve, and determining the corresponding first time interval; dividing the first time interval into multiple second time intervals; adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line; after all the second time intervals are analyzed, determining the second charging current curve of each charging device, and adjusting the output current of the corresponding intelligent control socket. The present invention improves charging stability by adjusting the charging current of multiple charging devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 A flow chart of an intelligent charging control method provided by the present invention is shown;

[0056] Figure 2 A flow chart showing a method for drawing a first charging current curve of a charging device provided by the present invention is shown;

[0057] Figure 3 A flow chart of a method for adjusting the charging current of each charging device in a second time interval based on the rated current of a power supply line provided by the present invention is shown;

[0058] Figure 4 A block diagram of an intelligent charging control system provided by the present invention is shown. DETAILED DESCRIPTION

[0059] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0060] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0061] Figure 1 A flow chart of an intelligent charging control method provided by the present invention is shown.

[0062] like Figure 1 As shown, the present invention discloses an intelligent charging control method, comprising:

[0063] S102, obtaining charging status data of a charging device;

[0064] S104, analyzing the charging state data of the charging device and drawing a first charging current curve of the charging device;

[0065] S106, when there are multiple charging devices charging at the same time, establish a coordinate axis with the horizontal axis being the charging current and the vertical axis being the time, input the first charging current curves of all the charging devices into the coordinate axis, accumulate the first charging current curves of all the charging devices based on time, and determine a total charging current curve;

[0066] S108, comparing the total charging current curve with the rated current of the power supply line, marking a portion of the total charging current curve that is greater than the rated current of the power supply line, and determining a first power supply current curve;

[0067] S110, determining a time interval corresponding to the first power supply current curve as a first time interval;

[0068] S112, dividing the first time interval into a plurality of second time intervals based on a preset time interval;

[0069] S114, adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line;

[0070] S116, when all second time interval analyses are completed, determining a second charging current curve for each charging device;

[0071] S118, adjusting the output current of the corresponding intelligent control socket according to the second charging current curve of each charging device.

[0072] According to an embodiment of the present invention, after the charging device is connected to the intelligent control socket, the charging status data of the charging device is obtained through the device identification module of the intelligent control socket, the first charging current curve of the charging device is drawn according to the charging status data of the charging device, and the output current of the corresponding intelligent control socket is adjusted according to the first charging current curve of the charging device, thereby reducing the load of the power supply line. At the same time, the intelligent control socket monitors in real time during use and performs charging protection processing according to real-time charging parameters, for example, automatically cutting off the power supply when the battery of the charging device is full, forcibly cutting off the power supply when the charging device reaches the maximum continuous charging time, automatically cutting off the power supply when the actual charging current of the charging device is greater than its rated charging current, automatically cutting off the power supply when the intelligent control socket is overloaded, and automatically cutting off the power supply when the temperature of the intelligent control socket itself reaches the preset warning temperature, etc.

[0073] When multiple smart control sockets are used in the same power supply line (such as configuring multiple smart control sockets in a smart charging cabinet), since the multiple smart control sockets are connected in parallel, the output voltage of each smart control socket is equal. By adjusting the output current of each smart control socket, the charging of the corresponding charging device is adjusted respectively.

[0074] When multiple charging devices are charged using the smart control socket at the same time, the first charging current curves of all charging devices are accumulated based on time to determine the total charging current curve, that is, the output current curve of the power supply line that satisfies all charging devices when charging according to the preset current. The total charging current curve is compared with the rated current of the power supply line to determine whether all charging devices can be charged according to the preset current.

[0075] When the maximum value of the total charging current curve is less than or equal to the rated current of the power supply line, it means that all charging devices can be charged according to the preset current, and the intelligent control socket adjusts the output current according to the first charging current curve of the connected charging device; when the maximum value of the total charging current curve is greater than the rated current of the power supply line, it means that all charging devices cannot be charged according to the preset current. At some times, the actual charging current of all or part of the charging devices will be less than the preset current, and the power supply line will be in a high-load state, which is prone to power consumption risks. In this case, the part of the total charging current curve that is greater than the rated current of the power supply line is marked to determine the first power supply current curve, and there can be one or more first power supply current curves.

[0076] The first time interval corresponding to the first power supply current curve is determined by the coordinate axis where the first power supply current curve is located, and the first time interval is divided into multiple second time intervals based on the preset time interval. Among them, the preset time interval is set by a person skilled in the art according to actual needs. Then the first average charging current of the total charging current curve in each second time interval is calculated, and all the second time intervals are sorted in descending order according to the size of the first average charging current. The second time interval with the largest first average current is analyzed first, and the charging impact data of each charging device in the second time interval is obtained, and the charging weight of each charging device is calculated. The charging weight of each charging device is compared with the maximum charging weight of all charging devices to determine the charging adjustment rate of each charging device.

[0077] All charging devices are sorted in ascending order according to the charging adjustment rate, and the charging device with the smallest charging adjustment rate is preferentially analyzed. The second average charging current of the charging device is multiplied by the corresponding charging adjustment rate to determine the second average charging current of the charging device after adjustment in the current second time interval, so as to update the first average charging current of the current second time interval, and the second average charging of each charging device is adjusted in turn according to the charging adjustment rate, and the first average charging current is updated according to the adjusted second average charging current, until the adjusted first average charging current is less than the rated current of the power supply line, and then the adjustment of the second average charging current of the charging device in the current second time interval is terminated.

[0078] The corresponding first charging current curve and the predicted charging end time are updated according to the second average charging current of the charging device after adjustment in the current second time interval. At the same time, the total charging current curve is drawn again based on the updated first charging current curve of each charging device to determine whether the first power supply current curve has changed. If it has changed, the first time interval and the second time interval are adjusted accordingly. When all the second time intervals are analyzed, the final first charging current curve of the charging device is determined as the second charging current curve of the charging device. The output current of the corresponding intelligent control socket is adjusted according to the second charging current curve of the charging device.

[0079] In addition, in order to avoid the impact of calculation errors on actual charging, such as the actual output current of the intelligent control socket is lower than the output current preset by the system according to the charging current curve of the charging device in a certain period of time, resulting in the charging device being unable to complete charging at the latest charging end time, etc., a warning time is determined within the third time interval, and the warning time is used as the latest charging end time of the charging device. When the predicted charging end time of the charging device is greater than or equal to the latest charging end time of the device, the device no longer participates in the subsequent current adjustment, and the first charging current curve at this time is determined as the second charging current curve of the device.

[0080] Figure 2 A flow chart of a method for drawing a first charging current curve of a charging device provided by the present invention is shown.

[0081] like Figure 2 As shown, according to an embodiment of the present invention, analyzing the charging state data of the charging device and drawing a first charging current curve of the charging device includes:

[0082] S202, analyzing the charging status data of the charging device to determine the device type and charging parameters of the charging device; the charging parameters include at least battery capacity, charging current, charging voltage, and power before charging;

[0083] S204: Formulate a charging strategy according to the charging parameters of the charging device and the charging preference set by the user, and generate a first charging current curve of the charging device.

[0084] It should be noted that when the charging device is connected to the smart control socket, the charging status data of the charging device is obtained through the device identification module of the smart control socket, the device type of the charging device is identified, and multiple charging parameters of the charging device, such as the rated battery capacity, rated charging current, rated charging voltage, and pre-charging power, are determined. Combined with the charging preferences set by the user (such as fast charging, trickle charging, timed charging, etc.), the charging strategy is dynamically adjusted, and the current change curves of the trickle charging stage, constant current charging stage, and constant voltage charging stage are drawn respectively to determine the first charging current curve of the charging device.

[0085] According to an embodiment of the present invention, it also includes:

[0086] Calculating a first average charging current in each second time interval through a total charging current curve;

[0087] Calculating a second average charging current of each charging device in each second time interval according to the first charging current curve of the charging device;

[0088] The plurality of second time intervals are sorted in descending order according to the first average charging current; when there are second time intervals with the same average power supply power, they are sorted in chronological order.

[0089] It should be noted that the first average charging current of the second time interval is determined by intercepting a corresponding portion of the charging current curve in the total charging current curve in the second time interval, calculating the average charging current of the portion of the charging current curve, and sorting the second time interval in descending order according to the first average charging current, and analyzing and adjusting the charging current of each charging device in the second time interval in turn according to the sorted order.

[0090] A corresponding portion of the charging current curve is intercepted from the first charging current curve of the charging device in the second time interval, an average charging current of the portion of the charging current curve is calculated, and a second average charging current of the current charging device in the second time interval is determined.

[0091] Figure 3 A flow chart of a method for adjusting the charging current of each charging device within a second time interval based on the rated current of a power supply line provided by the present invention is shown.

[0092] like Figure 3 As shown, according to an embodiment of the present invention, adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line includes:

[0093] S302, based on the start time of the second time interval, obtaining charging impact data of each charging device in the second time interval; the charging impact data at least includes the power before charging, the estimated charging end time, the charging start time, the cumulative charging power at the start time of the second time interval, and the cumulative charging time;

[0094] S304, calculating a charging weight of each charging device according to the charging impact data of each charging device in the second time interval;

[0095] S306, calculating the ratio of the charging weight of each charging device to the maximum charging weight of all charging devices, and determining the charging adjustment rate of each charging device;

[0096] S308, sorting the charging devices in ascending order based on the charging adjustment rate, analyzing each charging device in turn according to the sorting order, multiplying the second average charging current of each charging device by the corresponding charging adjustment rate, and determining the adjusted second average charging current of each charging device in the current second time interval;

[0097] S310, updating the first average charging current adjusted in the current second time interval based on the second average charging current adjusted in the current second time interval of the charging device;

[0098] S312, when the adjusted first average charging current is less than the rated current of the power supply line, end the adjustment of the second average charging current of the charging device in the current second time interval;

[0099] S314: Update the corresponding first charging current curve and the predicted charging end time according to the second average charging current of the charging device adjusted in the current second time interval.

[0100] It should be noted that the charging impact data of the second time interval is first input into the charging weight calculation formula of the charging device, the charging weight of each charging device in the second time interval is calculated, and the maximum charging weight of all charging devices is determined. The ratio of the charging weight of each charging device to the maximum charging weight is calculated in turn to determine the charging adjustment rate of each charging device. The charging devices are sorted in descending order according to the charging adjustment rate, and the charging device with the largest charging adjustment rate is preferentially selected. The second average charging current of the charging device in the current second time interval is multiplied by the charging adjustment rate to determine the second average charging current of the charging device after adjustment in the current second time interval. The first average charging current after adjustment in the current second time interval is subtracted from the second average charging current of the charging device before adjustment in the current second time interval, and the adjusted second average charging current is added to obtain the first average charging current after adjustment in the second time interval. Determine whether the first average charging current after adjustment in the second time interval is less than the rated current of the power supply line. If so, end the adjustment of the second average charging current of the charging device in the current second time interval, and do not adjust the second average charging current of the subsequent charging devices that have not been adjusted; if not, select the next charging device in descending order of the charging adjustment rate, adjust its second average charging current, and update the first average charging current after adjustment in the second time interval. Repeat the above operation until the first average charging current after adjustment in the second time interval is less than the rated current of the power supply line, end the adjustment, and do not adjust the second average charging current of the remaining charging devices.

[0101] In addition, if after all charging devices have been adjusted, the first average charging current after adjustment in the second time interval is still not less than the rated current of the power supply line, then the ratio of the charging weight of each charging device to the sum of the charging weights of all charging devices is calculated, and the ratio is multiplied by the rated current of the power supply line to determine the second average charging current after adjustment of each charging device.

[0102] The first charging current curve of the charging device in the current second time interval is replaced with the corresponding adjusted second average charging current, the first charging current curve of the charging device is updated, and the charging end time is re-predicted according to the updated first charging current curve.

[0103] According to an embodiment of the present invention, the calculation method of the charging weight of the charging device is expressed by the formula:

[0104]

[0105] Among them, P n(a) is the charging weight of charging device a in the second time interval n, Q 0(a) The power before charging the charging device a, Q n(a) is the cumulative charging power of charging device a at the start time of the second time interval n, Q max(a) is the rated battery capacity of charging device a, T n(a) is the cumulative charging time of the charging device a at the start time of the second time interval n, t 1(a) is the estimated charging end time of charging device a, t 0(a) is the charging start time of charging device a, k1, k2 and k3 are all influencing factors of charging weight.

[0106] It should be noted that the charging weight influencing factors k1, k2 and k3 are all set by those skilled in the art according to actual needs.

[0107] According to an embodiment of the present invention, it also includes:

[0108] Determine the predicted charging end time of the charging device as the start time of the corresponding third time interval;

[0109] Determine the estimated pickup time based on the historical charging data of the charging device;

[0110] The power of the charging device at the predicted charging end time is set to a first preset power, a charging simulation is performed based on the first preset power, and a simulated charging end time is determined;

[0111] Compare the estimated access time, the simulated charging end time and the maximum continuous charging time of the charging device, and determine the minimum time as the end time of the third time interval;

[0112] The warning time is calculated according to the charging start time of the charging device, the start time and the end time of the third time interval;

[0113] t y =(1-k y )(t1-t0)+k y (t2-t0)+t0;

[0114] Among them, t y is the warning time, t0 is the charging start time of the charging device, t1 is the start time of the third time interval, t2 is the end time of the third time interval, k yis the influencing factor of the warning time.

[0115] It should be noted that the historical charging data of the charging device within the system preset time (such as the past 30 days) is filtered by the device type of the charging device, and the distribution law of the historical access time of the historical charging data of the charging device is analyzed to draw a normal distribution curve, and determine the time interval where the mean μ of the normal distribution curve is located. The time interval is intervals of hours, such as 7-8 o'clock every day as a time interval, and 8-9 o'clock as a time interval. The start time of the time interval is determined as the estimated access time of the current charging device. In addition, when the number of historical charging data of the charging device within the system preset time is less than the system preset number, or the distribution law of the historical access time of the historical charging data of the charging device does not meet the normal distribution law, it is assumed that the charging device does not have a simulated charging end time.

[0116] The power of the charging device at the predicted charging end time is set to the first preset power, and the first charging current curve of the charging device is shifted to the right. When the first preset power at the predicted charging end time coincides with the first charging current curve, the shift is ended, and the charging end time corresponding to the first charging current curve after the shift is determined as the simulated charging end time.

[0117] The end time of the third time interval is the latest charging end time of the charging device without affecting the normal use of the device. In order to avoid the impact of calculation errors on actual charging, such as the actual output current of the intelligent control socket is lower than the output current preset by the system according to the charging current curve of the charging device in a certain period of time, resulting in the charging device being unable to complete charging at the latest charging end time, etc., a warning time is determined within the third time interval, and the warning time is used as the latest charging end time of the charging device.

[0118] Among them, the influencing factor k of the warning time is y The value range is 0-1, the first preset power is less than or equal to the rated battery capacity of the charging device, and the influence factor k of the warning time y The specific value of the first preset power is set by technicians in this field according to actual needs.

[0119] According to an embodiment of the present invention, it also includes:

[0120] When the predicted charging end time of the charging device is greater than or equal to the corresponding warning time, the adjustment of the first charging current curve of the charging device is terminated.

[0121] It should be noted that when the predicted charging end time of the charging device after adjustment in a certain second time interval is greater than or equal to the corresponding warning time, the charging device is marked and no longer participates in the subsequent second time interval analysis process. The first charging current curve of the charging device at this time is determined as the final second charging current curve.

[0122] According to an embodiment of the present invention, it also includes:

[0123] When a charging device has finished charging or a new charging device is added, resulting in a change in the number of charging devices, the output current of the corresponding intelligent control socket is readjusted according to the first charging current curve of each charging device.

[0124] It should be noted that in the process of charging the charging device through the smart control socket, the charging status of the charging device corresponding to each smart control socket is detected in real time. When the number of charging devices in the charging state changes (such as the charging of a charging device is completed or a new charging device starts charging, etc.), the initial first charging current curve of each charging device and the actual power at the current time are analyzed, and the first charging current curve of the charging device in the charging state is again determined to determine the total charging current curve, the second time interval is selected, the first charging current curve of each charging device is adjusted, and the output current of the corresponding smart control socket is adjusted according to the finally determined second charging current curve.

[0125] Figure 4 A block diagram of an intelligent charging control system provided by the present invention is shown.

[0126] like Figure 4 As shown, the second aspect of the present invention provides an intelligent charging control system, comprising:

[0127] A data acquisition module, used to acquire charging status data of a charging device;

[0128] A first analysis module, configured to analyze the charging state data of the charging device and draw a first charging current curve of the charging device;

[0129] A second analysis module is used to establish a coordinate axis with a horizontal axis of charging current and a vertical axis of time when multiple charging devices are charged at the same time, input the first charging current curves of all charging devices into the coordinate axis, and accumulate the first charging current curves of all charging devices based on time to determine a total charging current curve;

[0130] a third analysis module, configured to compare the total charging current curve with the rated current of the power supply line, mark the portion of the total charging current curve that is greater than the rated current of the power supply line, and determine a first power supply current curve; determine the time interval corresponding to the first power supply current curve as the first time interval; and divide the first time interval into a plurality of second time intervals based on a preset time interval;

[0131] A charging current curve adjustment module, configured to adjust the charging current of each charging device in each second time interval based on the rated current of the power supply line; and determine the second charging current curve of each charging device when all second time intervals are analyzed;

[0132] The charging current control module is used to adjust the output current of the corresponding intelligent control socket according to the second charging current curve of each charging device.

[0133] A third aspect of the present invention provides an intelligent control socket, wherein the storage medium of the intelligent control socket includes an intelligent charging control method program, and when the intelligent charging control method program is executed by a processor, the steps of the above intelligent charging control method are implemented.

[0134] The information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals (including but not limited to signals transmitted between user terminals and other devices, etc.) involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions. For example, the "charging status data of the charging device", "charging impact data of the charging device in the second time interval" and so on involved in this disclosure are all obtained with full authorization.

[0135] The present invention discloses an intelligent charging control method, system and intelligent control socket, the method comprising: obtaining charging status data of a charging device and drawing a first charging current curve; when there are multiple charging devices charging at the same time, accumulating the first charging current curves of all charging devices based on time to determine the total charging current curve; determining the part of the total charging current curve that is greater than the rated current of the power supply line as the first power supply current curve, and determining the corresponding first time interval; dividing the first time interval into multiple second time intervals; adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line; after all the second time intervals are analyzed, determining the second charging current curve of each charging device, and adjusting the output current of the corresponding intelligent control socket. The present invention improves charging stability by adjusting the charging current of multiple charging devices.

[0136] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0137] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0138] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0139] Those skilled in the art can understand that: all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), disks or optical disks, and other media that can store program codes.

[0140] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

Claims

1. An intelligent charging control method, characterized in that: include: Obtain charging status data of charging equipment; Analyze the charging status data of the charging device and draw a first charging current curve of the charging device; When there are multiple charging devices charging at the same time, a coordinate axis is established with the horizontal axis being the charging current and the vertical axis being the time, the first charging current curves of all the charging devices are input into the coordinate axis, and the first charging current curves of all the charging devices are accumulated based on time to determine a total charging current curve; Comparing the total charging current curve with the rated current of the power supply line, marking a portion of the total charging current curve that is greater than the rated current of the power supply line, and determining a first power supply current curve; Determining the time interval corresponding to the first supply current curve as a first time interval; dividing the first time interval into a plurality of second time intervals based on a preset time interval; adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line; After all second time interval analyses are completed, determining a second charging current curve for each charging device; The output current of the corresponding intelligent control socket is adjusted according to the second charging current curve of each charging device.

2. The intelligent charging control method according to claim 1, characterized in that: The step of analyzing the charging status data of the charging device and drawing a first charging current curve of the charging device includes: Analyze the charging status data of the charging device to determine the device type and charging parameters of the charging device; the charging parameters include at least battery capacity, charging current, charging voltage, and power before charging; A charging strategy is formulated according to the charging parameters of the charging device in combination with the charging preference set by the user, and a first charging current curve of the charging device is generated.

3. The intelligent charging control method according to claim 1, characterized in that: Also includes: Calculating a first average charging current in each second time interval by using the total charging current curve; Calculating a second average charging current of each charging device in each second time interval according to the first charging current curve of the charging device; The plurality of second time intervals are sorted in descending order according to the first average charging current; when there are second time intervals with the same average power supply power, they are sorted in chronological order.

4. The intelligent charging control method according to claim 2, characterized in that: The adjusting the charging current of each charging device in each second time interval based on the rated current of the power supply line includes: Acquire charging impact data of each charging device in the second time interval based on the start time of the second time interval; the charging impact data at least includes the power before charging, the estimated charging end time, the charging start time, the cumulative charging power at the start time of the second time interval, and the cumulative charging time; Calculating a charging weight of each charging device according to the charging impact data of each charging device in the second time interval; Calculate the ratio of the charging weight of each charging device to the maximum charging weight of all charging devices, and determine the charging adjustment rate of each charging device; Sort the charging devices in ascending order based on the charging adjustment rate, analyze each charging device in turn according to the sorting order, multiply the second average charging current of each charging device by the corresponding charging adjustment rate, and determine the adjusted second average charging current of each charging device in the current second time interval; Update the first average charging current adjusted in the current second time interval based on the second average charging current adjusted in the current second time interval of the charging device; When the adjusted first average charging current is less than the rated current of the power supply line, the adjustment of the second average charging current of the charging device in the current second time interval is terminated; The corresponding first charging current curve and the predicted charging end time are updated according to the second average charging current of the charging device adjusted in the current second time interval.

5. The intelligent charging control method according to claim 4, characterized in that: It also includes that the calculation method of the charging weight of the charging device is expressed by the formula: Among them, P n(a) is the charging weight of charging device a in the second time interval n, Q 0(a) The power before charging the charging device a, Q n(a) is the cumulative charging power of charging device a at the start time of the second time interval n, Q max(a) is the rated battery capacity of charging device a, T n(a) is the cumulative charging time of the charging device a at the start time of the second time interval n, t 1(a) is the estimated charging end time of charging device a, t 0(a) is the charging start time of charging device a, k1, k2 and k3 are all influencing factors of charging weight.

6. The intelligent charging control method according to claim 1, characterized in that: Also includes: Determine the predicted charging end time of the charging device as the start time of the corresponding third time interval; Determine the estimated pickup time based on the historical charging data of the charging device; The power of the charging device at the predicted charging end time is set to a first preset power, a charging simulation is performed based on the first preset power, and a simulated charging end time is determined; Compare the estimated access time, the simulated charging end time and the maximum continuous charging time of the charging device, and determine the minimum time as the end time of the third time interval; The warning time is calculated according to the charging start time of the charging device, the start time and the end time of the third time interval; t y =(1-k y )(t1-t0)+k y (t2-t0)+t0; Among them, t y is the warning time, t0 is the charging start time of the charging device, t1 is the start time of the third time interval, t2 is the end time of the third time interval, k y is the influencing factor of the warning time.

7. The intelligent charging control method according to claim 6, characterized in that: Also includes: When the predicted charging end time of the charging device is greater than or equal to the corresponding warning time, the adjustment of the first charging current curve of the charging device is terminated.

8. The intelligent charging control method according to claim 1, characterized in that: Also includes: When a charging device has finished charging or a new charging device is added, resulting in a change in the number of charging devices, the output current of the corresponding intelligent control socket is readjusted according to the first charging current curve of each charging device.

9. An intelligent charging control system, used to implement the intelligent charging control method according to any one of claims 1 to 8, characterized in that: include: A data acquisition module, used to acquire charging status data of a charging device; A first analysis module, configured to analyze the charging state data of the charging device and draw a first charging current curve of the charging device; A second analysis module is used to establish a coordinate axis with a horizontal axis of charging current and a vertical axis of time when multiple charging devices are charged at the same time, input the first charging current curves of all charging devices into the coordinate axis, and accumulate the first charging current curves of all charging devices based on time to determine a total charging current curve; a third analysis module, configured to compare the total charging current curve with the rated current of the power supply line, mark the portion of the total charging current curve that is greater than the rated current of the power supply line, and determine a first power supply current curve; and determine a time interval corresponding to the first power supply current curve as a first time interval; dividing the first time interval into a plurality of second time intervals based on a preset time interval; A charging current curve adjustment module, configured to adjust the charging current of each charging device in each second time interval based on the rated current of the power supply line; After all second time interval analyses are completed, determining a second charging current curve for each charging device; The charging current control module is used to adjust the output current of the corresponding intelligent control socket according to the second charging current curve of each charging device.

10. An intelligent control socket, characterized in that: The storage medium of the intelligent control socket includes an intelligent charging control method program. When the intelligent charging control method program is executed by a processor, the steps of an intelligent charging control method as described in any one of claims 1 to 8 are implemented.

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