Method and system for calculating residual charging time

Abstract

The invention discloses a method and a system for calculating residual charging time, relates to the field of batteries, solves the problem of poor application effect of a calculation method, and comprises the following steps: S1, periodically monitoring charging data corresponding to target charging equipment, and respectively acquiring a charging power abnormal coefficient and a charging temperature abnormal coefficient according to a monitoring result, s2, performing charging state abnormity detection on target charging equipment according to the charging equipment monitoring data, performing charging state division on the target charging equipment according to a detection result, and obtaining charging state analysis data; and S3, according to the charging state analysis data, carrying out charging remaining time calculation on the target charging device in the normal charging state, and issuing a charging abnormity early warning to the target charging device in the abnormal charging state. According to the invention, the pertinence and accuracy of the charging remaining time calculation method can be improved.

Description

Technical Field

[0001] The present invention belongs to the field of batteries and relates to data analysis technology, specifically a method and system for calculating the remaining charging duration. Background Art

[0002] When calculating the remaining charging duration, the existing methods for calculating the remaining charging duration have the following specific defects:

[0003] 1. The existing methods for calculating the remaining charging duration can only calculate the charging duration of a single device, and cannot monitor the charging status of the charging device and determine whether there is a need to calculate the remaining charging duration of the charging device based on the monitoring results, resulting in a lack of pertinence in the charging duration calculation method;

[0004] 2. The existing methods for calculating the remaining charging duration combine the power data and temperature data of the charging device to jointly judge the abnormality of the state, resulting in a lack of accuracy in monitoring the charging status of the device.

[0005] Therefore, we propose a method and system for calculating the remaining charging duration. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a method and system for calculating the remaining charging duration, and the present invention aims to improve the application pertinence of the method for calculating the remaining charging duration.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: A method for calculating the remaining charging duration includes the following specific steps:

[0008] Step S1: Periodically monitor the charging data corresponding to the target charging device, and respectively obtain the charging power abnormality coefficient and the charging temperature abnormality coefficient according to the monitoring results to obtain the charging device monitoring data;

[0009] Step S2: Detect the abnormality of the charging status of the target charging device according to the charging device monitoring data, divide the charging status of the target charging device according to the detection results, and obtain the charging status analysis data according to the division results;

[0010] Step S3: Calculate the remaining charging duration of the target charging device in the normal charging state according to the charging status analysis data, and issue a charging abnormality warning for the target charging device in the abnormal charging state.

[0011] Further, in the step S1, the following specific steps are further included:

[0012] Step S11: Obtain the charging devices deployed in the remaining charging duration calculation system, and select a target charging device from the obtained multiple charging devices;

[0013] Step S12: When the target charging device is in a charging state, mark the time value corresponding to the current moment as the cycle end time value, select a cycle start time value in the period before the cycle end time, and mark the period between the cycle start time value and the cycle end time value as the device charging monitoring cycle;

[0014] Step S13: Monitor the power data of the target charging device in the device charging monitoring cycle, and obtain the charging power anomaly coefficient according to the monitoring results;

[0015] Step S14: Monitor the temperature data of the target charging device in the device charging monitoring cycle, and obtain the charging temperature anomaly coefficient according to the monitoring results;

[0016] Obtain the charging device monitoring data.

[0017] Further, in the step S13, the following specific steps are further included:

[0018] Step S131: In the device charging monitoring cycle, select several power data monitoring time points with equal interval durations, and mark the several selected power data monitoring time points as the D1 power time point to the Da power time point in chronological order;

[0019] Step S132: Monitor the power data deviation of the target charging device at the D1 power time point to obtain the D1 charging voltage deviation and the D1 charging current deviation;

[0020] Step S133: Obtain the charging current deviations corresponding to the D2 power time point to the Da power time point respectively to obtain the D2 charging current deviation to the Da charging current deviation;

[0021] Step S134: Obtain the charging voltage deviations corresponding to the D2 power time point to the Da power time point respectively to obtain the D2 charging voltage deviation to the Da charging voltage deviation;

[0022] Step S135: Calculate the charging power anomaly coefficient from the D1 charging voltage deviation to the Da charging voltage deviation and the D1 charging current deviation to the Da charging current deviation;

[0023] Calculate the charging power anomaly coefficient.

[0024] Further, in the step S132, the following specific steps are further included:

[0025] Obtain the charging voltage value of the target charging device at the D1 power time point to get the D1 charging voltage value, and obtain the charging current value of the target charging device at the D1 power time point to get the D1 charging voltage value;

[0026] Obtain the rated charging current range corresponding to the target charging device. If the D1 charging current value is within the rated charging current range, assign the value 0 to the D1 charging current deviation as a parameter;

[0027] If the D1 charging current value is greater than or equal to the upper limit of the rated charging current range, calculate the difference between the D1 charging current value and the upper limit of the rated charging current range, and take the absolute value of the obtained difference to get the D1 charging current deviation;

[0028] If the D1 charging current value is less than or equal to the lower limit of the rated charging current range, calculate the difference between the D1 charging current value and the lower limit of the rated charging current range, and take the absolute value of the obtained difference to get the D1 charging current deviation;

[0029] Obtain the rated charging voltage range corresponding to the target charging device. If the D1 charging voltage value is within the rated charging voltage range, assign the value 0 to the D1 charging voltage deviation as a parameter;

[0030] If the D1 charging voltage value is greater than or equal to the upper limit of the rated charging voltage range, calculate the difference between the D1 charging voltage value and the upper limit of the rated charging voltage range, and take the absolute value of the obtained difference to get the D1 charging voltage deviation;

[0031] If the D1 charging voltage value is less than or equal to the lower limit of the rated charging voltage range, calculate the difference between the D1 charging voltage value and the lower limit of the rated charging voltage range, and take the absolute value of the obtained difference to get the D1 charging voltage deviation.

[0032] Furthermore, in step S14, the following specific steps are further included:

[0033] Mark a number of temperature monitoring points at the battery position of the target charging device, perform real-time temperature monitoring on each temperature monitoring point respectively, and obtain the numerical value of the maximum monitored temperature of the temperature monitoring points during the device charging monitoring period to get multiple monitored point peak temperature values;

[0034] Obtain the rated charging temperature value of the battery corresponding to the target charging device, compare each monitored point peak temperature value with the rated charging temperature value of the battery. If the rated charging temperature value of the battery is greater than or equal to the rated charging temperature value of the battery, mark the corresponding rated charging temperature value of the battery as an abnormal charging temperature value. If the rated charging temperature value of the battery is less than the rated charging temperature value of the battery, mark the corresponding rated charging temperature value of the battery as a normal charging temperature value;

[0035] Name the multiple obtained abnormal charging temperature values as the Y1 charging temperature value to the Yb charging temperature value.

[0036] Furthermore, in step S14, the following specific steps are further included:

[0037] Obtain the duration when the battery temperature of the target charging device is at the Y1 charging temperature value to obtain the Y1 temperature duration, obtain the duration when the battery temperature of the target charging device is at the Y2 charging temperature value to obtain the Y2 temperature duration, and so on, obtain the duration when the battery temperature of the target charging device is at the Ya charging temperature value to obtain the Ya temperature duration;

[0038] Calculate the charging temperature anomaly coefficient from the Y1 charging temperature value to the Yb charging temperature value and the Y1 temperature duration to the Ya temperature duration;

[0039] Calculate the charging temperature anomaly coefficient.

[0040] Furthermore, in step S2, the following specific steps are further included:

[0041] Step S21: Obtain the charging device monitoring data, and respectively obtain the charging power anomaly coefficient and the charging temperature anomaly coefficient according to the charging device monitoring data;

[0042] Step S22: Obtain the charging power anomaly warning range and the charging temperature anomaly warning range;

[0043] Step S23: Judge the charging state of the target charging device according to the charging power anomaly coefficient, the charging temperature anomaly coefficient, the charging power anomaly warning range, and the charging temperature anomaly warning range to obtain the charging state analysis data.

[0044] Furthermore, in step S23, the following specific steps are further included:

[0045] If the charging power anomaly coefficient is within the charging power anomaly warning range and the charging temperature anomaly coefficient is within the charging temperature anomaly warning range, then judge that the target charging device is in an abnormal charging state;

[0046] If the charging power anomaly coefficient is within the charging power anomaly warning range and the charging temperature anomaly coefficient is not within the charging temperature anomaly warning range, then judge that the target charging device is in an abnormal charging state;

[0047] If the charging power anomaly coefficient is not within the charging power anomaly warning range and the charging temperature anomaly coefficient is within the charging temperature anomaly warning range, then judge that the target charging device is in an abnormal charging state;

[0048] If the charging power anomaly coefficient is not within the charging power anomaly warning range and the charging temperature anomaly coefficient is not within the charging temperature anomaly warning range, it is determined that the target charging device is in a normal charging state.

[0049] Further, in step S3, the following specific steps are further included:

[0050] Obtain charging status analysis data, and respectively obtain the target charging devices in normal charging status and abnormal charging status according to the charging status analysis data;

[0051] When the target charging device is in an abnormal charging state, the system issues a charging status anomaly warning;

[0052] When the target charging device is in a normal charging state, the system obtains the battery capacity to be charged corresponding to the target charging device, obtains the real-time charging power of the current target charging device, calculates the ratio of the battery capacity to be charged to the real-time charging power, and obtains the remaining charging duration.

[0053] A system for calculating the remaining charging duration includes:

[0054] Data acquisition module: Periodically monitor the charging data corresponding to the target charging device, and respectively obtain the charging power anomaly coefficient and the charging temperature anomaly coefficient according to the monitoring results to obtain the charging device monitoring data;

[0055] Abnormal detection module: Detect the charging status anomaly of the target charging device according to the charging device monitoring data, divide the charging status of the target charging device according to the detection results, and obtain the charging status analysis data according to the division results;

[0056] Duration calculation module: Calculate the remaining charging duration of the target charging device in a normal charging state according to the charging status analysis data, and issue a charging anomaly warning for the target charging device in an abnormal charging state.

[0057] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0058] 1. The present invention monitors the charging status of the charging device and determines whether there is a need to calculate the remaining charging duration of the charging device according to the monitoring results, thereby improving the pertinence of the charging duration calculation method.

[0059] 2. The present invention jointly judges the status anomaly by obtaining the power data and temperature data of the charging device in the charging state, thereby improving the accuracy of the charging status monitoring of the device.

[0060] 3. Traditional methods for calculating charging duration often estimate based on fixed charging power and battery capacity. However, in actual situations, the charging rate is easily affected by various factors such as battery aging, environmental temperature, and power fluctuations of charging devices. Through separately monitoring the current data and voltage data during the charging process and calculating the remaining charging duration based on the monitoring results, the present invention can effectively reduce the calculation deviation of the remaining charging duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the drawings.

[0062] Figure 1 is the overall system block diagram of the present invention;

[0063] Figure 2 is the implementation step diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0064] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0065] Embodiment 1

[0066] Please refer to Figure 1 , the present invention provides a technical solution: a method for calculating the remaining charging duration, including the following specific steps:

[0067] Step S1: Periodically monitor the charging data corresponding to the target charging device, and respectively obtain the charging power anomaly coefficient and the charging temperature anomaly coefficient according to the monitoring results to obtain the charging device monitoring data;

[0068] In the step S1, the following specific steps are further included:

[0069] Step S11: Obtain the charging devices deployed in the remaining charging duration calculation system, and select a target charging device from the obtained multiple charging devices;

[0070] Step S12: When the target charging device is in the charging state, mark the time value corresponding to the current moment as the cycle end time value, and select a cycle start time value in the period before the cycle end time. Mark the period between the cycle start time value and the cycle end time value as the device charging monitoring cycle;

[0071] Step S13: Monitor the power data of the target charging device during the device charging monitoring period, and obtain the charging power anomaly coefficient according to the monitoring results.

[0072] In the step S13, the following specific steps are further included:

[0073] Step S131: During the device charging monitoring period, select several power data monitoring time points with equal interval durations, and sequentially mark the selected several power data monitoring time points as the D1 power time point to the Da power time point in chronological order.

[0074] Step S132: Monitor the power data deviation of the target charging device at the D1 power time point to obtain the D1 charging voltage deviation and the D1 charging current deviation.

[0075] In the step S132, the following specific steps are further included:

[0076] Obtain the charging voltage value of the target charging device at the D1 power time point to get the D1 charging voltage value, and obtain the charging current value of the target charging device at the D1 power time point to get the D1 charging current value.

[0077] Obtain the charging rated current range corresponding to the target charging device. If the D1 charging current value is within the charging rated current range, assign the parameter value 0 to the D1 charging current deviation.

[0078] If the D1 charging current value is greater than or equal to the upper limit of the charging rated current range, calculate the difference between the D1 charging current value and the upper limit of the charging rated current range, and take the absolute value of the obtained difference to get the D1 charging current deviation.

[0079] If the D1 charging current value is less than or equal to the lower limit of the charging rated current range, calculate the difference between the D1 charging current value and the lower limit of the charging rated current range, and take the absolute value of the obtained difference to get the D1 charging current deviation.

[0080] Obtain the charging rated voltage range corresponding to the target charging device. If the D1 charging voltage value is within the charging rated voltage range, assign the parameter value 0 to the D1 charging voltage deviation.

[0081] If the D1 charging voltage value is greater than or equal to the upper limit of the charging rated voltage range, calculate the difference between the D1 charging voltage value and the upper limit of the charging rated voltage range, and take the absolute value of the obtained difference to get the D1 charging voltage deviation.

[0082] If the D1 charging voltage value is less than or equal to the lower limit of the charging rated voltage range, calculate the difference between the D1 charging voltage value and the lower limit of the charging rated voltage range, and take the absolute value of the obtained difference to get the D1 charging voltage deviation.

[0083] Step S133: Obtain the charging current deviations corresponding to the power time points from D2 to Da respectively, and obtain the charging current deviations from D2 to Da;

[0084] Step S134: Obtain the charging voltage deviations corresponding to the power time points from D2 to Da respectively, and obtain the charging voltage deviations from D2 to Da;

[0085] Step S135: Calculate the charging power anomaly coefficient from the charging voltage deviations from D1 to Da and the charging current deviations from D1 to Da;

[0086] Calculate the charging power anomaly coefficient, and the specific formula is as follows:

[0087]

[0088] Among them, Pyx is the charging power anomaly coefficient, Vcy i is the charging voltage deviation of Di, Icy i is the charging current deviation of Di, and a is the numerical value corresponding to the power data monitoring time point;

[0089] It should be supplemented here that:

[0090] The existing charging power anomaly monitoring method mainly directly obtains the circuit power in real time through existing power equipment, compares the numerical value with the preset reference power, and detects the charging power anomaly according to the comparison result. Here, first, the current values and voltage values at multiple different time points are respectively judged for deviation, and the specific deviation values corresponding to the current values and voltage values are obtained, and the charging power anomaly coefficient is obtained according to the specific current deviation value and voltage deviation value, which can refine the monitoring parameters, capture the minute changes during the charging process more carefully, and improve the accuracy of the monitoring result.

[0091] Step S14: Monitor the temperature data of the target charging device during the device charging monitoring period, and obtain the charging temperature anomaly coefficient according to the monitoring result;

[0092] In the said step S14, the following specific steps are further included:

[0093] Mark a number of temperature monitoring points at the battery position of the target charging device, monitor the real-time temperature of each temperature monitoring point respectively, and obtain the numerical value of the maximum monitored temperature of the temperature monitoring points during the device charging monitoring period to obtain the peak temperature numerical values of multiple monitoring points;

[0094] Obtain the rated charging temperature value of the battery corresponding to the target charging device, compare each monitored peak temperature value with the rated charging temperature value of the battery. If the rated charging temperature value of the battery is greater than or equal to the rated charging temperature value of the battery, mark the corresponding rated charging temperature value of the battery as an abnormal charging temperature value. If the rated charging temperature value of the battery is less than the rated charging temperature value of the battery, mark the corresponding rated charging temperature value of the battery as a normal charging temperature value;

[0095] Name the multiple obtained abnormal charging temperature values as Y1 charging temperature value to Yb charging temperature value;

[0096] Obtain the duration when the battery temperature of the target charging device is at the Y1 charging temperature value to get the Y1 temperature duration. Obtain the duration when the battery temperature of the target charging device is at the Y2 charging temperature value to get the Y2 temperature duration, and so on. Obtain the duration when the battery temperature of the target charging device is at the Ya charging temperature value to get the Ya temperature duration;

[0097] Calculate the charging temperature anomaly coefficient from the Y1 charging temperature value to Yb charging temperature value and the Y1 temperature duration to Ya temperature duration;

[0098] Calculate the charging temperature anomaly coefficient. The specific formula is as follows:

[0099]

[0100] Among them, Wyx is the charging temperature anomaly coefficient, Wyz i is the Yi charging temperature value, Wsc i is the Yi temperature duration, and b is the numerical value corresponding to the abnormal charging temperature value;

[0101] It should be supplemented here that:

[0102] In the existing technologies for monitoring the charging temperature of the battery, the abnormal charging temperature is often considered only from the single aspect of the temperature value. Here, while monitoring the temperature, the parameter of the temperature duration is also considered in combination, which can more comprehensively evaluate the temperature state during the battery charging process. The temperature value reflects the instantaneous temperature change, while the temperature duration reveals the persistence and stability of the temperature change. This comprehensive judgment helps to more accurately identify the temperature anomaly phenomenon.

[0103] Obtain the monitoring data of the charging device;

[0104] Step S2: Detect the abnormality of the charging state of the target charging device according to the monitoring data of the charging device, divide the charging state of the target charging device according to the detection result, and obtain the charging state analysis data according to the division result;

[0105] In step S2, the following specific steps are further included:

[0106] Step S21: Obtain the monitoring data of the charging device, and respectively obtain the charging power anomaly coefficient and the charging temperature anomaly coefficient according to the monitoring data of the charging device;

[0107] Step S22: Obtain the charging power anomaly warning range and the charging temperature anomaly warning range;

[0108] Step S23: Judge the charging state of the target charging device according to the charging power anomaly coefficient, the charging temperature anomaly coefficient, the charging power anomaly warning range, and the charging temperature anomaly warning range, and obtain the charging state analysis data;

[0109] In step S23, the following specific steps are further included:

[0110] If the charging power anomaly coefficient is within the charging power anomaly warning range and the charging temperature anomaly coefficient is within the charging temperature anomaly warning range, it is judged that the target charging device is in an abnormal charging state;

[0111] If the charging power anomaly coefficient is within the charging power anomaly warning range and the charging temperature anomaly coefficient is not within the charging temperature anomaly warning range, it is judged that the target charging device is in an abnormal charging state;

[0112] If the charging power anomaly coefficient is not within the charging power anomaly warning range and the charging temperature anomaly coefficient is within the charging temperature anomaly warning range, it is judged that the target charging device is in an abnormal charging state;

[0113] If the charging power anomaly coefficient is not within the charging power anomaly warning range and the charging temperature anomaly coefficient is not within the charging temperature anomaly warning range, it is judged that the target charging device is in a normal charging state;

[0114] Step S3: Calculate the remaining charging duration of the target charging device in the normal charging state according to the charging state analysis data, and issue a charging anomaly warning for the target charging device in the abnormal charging state;

[0115] In step S3, the following specific steps are further included:

[0116] Obtain the charging state analysis data, and respectively obtain the target charging devices in the normal charging state and the abnormal charging state according to the charging state analysis data;

[0117] When the target charging device is in the abnormal charging state, the system issues a charging state anomaly warning;

[0118] When the target charging device is in a normal charging state, the calculation system obtains the capacity of the battery to be charged corresponding to the target charging device, acquires the charging power of the current target charging device to obtain the real-time charging power, and calculates the ratio of the capacity of the battery to be charged to the real-time charging power to obtain the remaining charging duration.

[0119] In this application, if there are corresponding calculation formulas, the above calculation formulas are all calculated by taking the numerical values without dimensions. The coefficients such as the weight coefficient and the proportionality coefficient in the formula are set to obtain a result value by quantifying each parameter. As long as the size of the weight coefficient and the proportionality coefficient does not affect the proportional relationship between the parameters and the result value.

[0120] Embodiment 2

[0121] Please refer to Figure 2 , based on another concept of the same invention, a calculation system for the remaining charging duration is proposed. The calculation system includes a data acquisition module, an anomaly detection module, a duration calculation module, and a server. The data acquisition module, the anomaly detection module, and the duration calculation module are respectively connected to the server, and the server controls the data acquisition module, the anomaly detection module, and the duration calculation module respectively;

[0122] The data acquisition module periodically monitors the charging data corresponding to the target charging device, and respectively obtains the charging power anomaly coefficient and the charging temperature anomaly coefficient according to the monitoring results to obtain the charging device monitoring data.

[0123] Specifically as follows:

[0124] Obtain the charging devices deployed by the calculation system for the remaining charging duration, and select a target charging device from the obtained multiple charging devices;

[0125] It should be noted here that:

[0126] In this application, the charging device involved here is specifically the charging device for calculating the remaining charging duration using the calculation system for the remaining charging duration;

[0127] In this application, the charging devices involved here include, but are not limited to, power banks, earphones, and Bluetooth speakers;

[0128] When the target charging device is in the charging state, mark the time value corresponding to the current moment as the cycle end time value, and select a cycle start time value in the period before the cycle end time. Mark the period between the cycle start time value and the cycle end time value as the device charging monitoring cycle.

[0129] It should be noted here that:

[0130] In this application, as the time value corresponding to the current moment changes, the cycle start time value and the cycle end time value also change accordingly, so as to realize the dynamic update of the device charging monitoring cycle.

[0131] Monitor the power data of the target charging device in the device charging monitoring cycle, and obtain the charging power anomaly coefficient according to the monitoring results;

[0132] Specifically as follows:

[0133] During the device charging monitoring cycle, select several power data monitoring time points with equal interval durations, and sequentially mark the selected several power data monitoring time points as the D1 power time point to the Da power time point in chronological order;

[0134] It should be noted here that:

[0135] In this application, D involved here is the identifier corresponding to the power data monitoring time point, a is the numerical value corresponding to the power data monitoring time point, and a is an integer greater than 0.

[0136] Monitor the power data deviation of the target charging device at the D1 power time point to obtain the D1 charging voltage deviation and the D1 charging voltage deviation;

[0137] Specifically as follows:

[0138] Obtain the charging voltage value of the target charging device at the D1 power time point to obtain the D1 charging voltage value, and obtain the charging current value of the target charging device at the D1 power time point to obtain the D1 charging voltage value;

[0139] Obtain the charging rated current range corresponding to the target charging device. If the D1 charging current value is within the charging rated current range, assign the parameter value 0 to the D1 charging current deviation;

[0140] If the D1 charging current value is greater than or equal to the upper limit of the charging rated current range, calculate the difference between the D1 charging current value and the upper limit of the charging rated current range, and take the absolute value of the obtained difference to obtain the D1 charging current deviation;

[0141] If the D1 charging current value is less than or equal to the lower limit of the charging rated current range, calculate the difference between the D1 charging current value and the lower limit of the charging rated current range, and take the absolute value of the obtained difference to obtain the D1 charging current deviation;

[0142] It should be noted here that:

[0143] The charging rated current range involved here refers to the safe, effective and recommended current range that the target charging device or battery is allowed to pass under rated conditions;

[0144] In this application, if the charging rated voltage range corresponding to the target charging device is [2.5A, 5A], and the D1 charging voltage value of the target charging device is 2.6A, then the D1 charging voltage deviation is 0. If the D1 charging voltage value of the target charging device is 2A, then the D1 charging voltage deviation is 0.5A. If the D1 charging voltage value of the target charging device is 6.1A, then the D1 charging voltage deviation is 1.1A.

[0145] Obtain the charging rated voltage range corresponding to the target charging device. If the D1 charging voltage value is within the charging rated voltage range, then assign the value 0 to the D1 charging voltage deviation as a parameter.

[0146] If the D1 charging voltage value is greater than or equal to the upper limit of the charging rated voltage range, then calculate the difference between the D1 charging voltage value and the upper limit of the charging rated voltage range, and take the absolute value of the obtained difference to get the D1 charging voltage deviation.

[0147] If the D1 charging voltage value is less than or equal to the lower limit of the charging rated voltage range, then calculate the difference between the D1 charging voltage value and the lower limit of the charging rated voltage range, and take the absolute value of the obtained difference to get the D1 charging voltage deviation.

[0148] It should be noted here that:

[0149] The charging rated voltage range involved here refers to the safe, effective, and recommended voltage range that the target charging device or battery allows to pass under rated conditions.

[0150] In this application, if the charging rated voltage range corresponding to the target charging device is [3.7V, 5V], and the D1 charging voltage value of the target charging device is 4.6V, then the D1 charging voltage deviation is 0V. If the D1 charging voltage value of the target charging device is 2.2V, then the D1 charging voltage deviation is 1.5V. If the D1 charging voltage value of the target charging device is 6.1V, then the D1 charging voltage deviation is 1.1V.

[0151] Repeat the process of obtaining the D1 charging current deviation, and respectively obtain the charging current deviations corresponding to the D2 power time point to the Da power time point to get the D2 charging current deviation to the Da charging current deviation.

[0152] Repeat the process of obtaining the D1 charging voltage deviation, and respectively obtain the charging voltage deviations corresponding to the D2 power time point to the Da power time point to get the D2 charging voltage deviation to the Da charging voltage deviation.

[0153] Calculate the charging power anomaly coefficient from the D1 charging voltage deviation to the Da charging voltage deviation and the D1 charging current deviation to the Da charging current deviation.

[0154] Calculate the charging power anomaly coefficient, and the specific formula is as follows:

[0155]

[0156] Among them, Pyx is the charging power anomaly coefficient, Vcy i is the charging voltage deviation of Di, I cy i is the charging current deviation of Di, and a is the numerical value corresponding to the power data monitoring time point;

[0157] It should be noted here that:

[0158] In this application, the charging voltage deviation of Di involved here can be any one of the charging voltage deviations from the charging voltage deviation of D1 to the charging voltage deviation of Da, and the charging current deviation of Di involved here can be any one of the charging current deviations from the charging current deviation of D1 to the charging current deviation of Da;

[0159] The charging power anomaly coefficient involved here is an index value characterizing the charging power anomaly of the target charging device. The larger the charging power anomaly coefficient, the more abnormal the charging power of the target charging device;

[0160] In a specific implementation, there are the following experimental data:

[0161] Vcy1 is 1.1, Vcy2 is 3.1, Vcy3 is 1.6, I cy1 is 2.1, I cy2 is 2.3, I cy3 is 2.7, and the calculated charging power anomaly coefficient is 4.59.

[0162] Monitor the temperature data of the target charging device during the device charging monitoring period, and obtain the charging temperature anomaly coefficient according to the monitoring results;

[0163] Specifically as follows:

[0164] Mark several temperature monitoring points at the battery position of the target charging device, respectively monitor the real-time temperature of each temperature monitoring point, and obtain the peak temperature values of multiple monitoring points by obtaining the maximum monitored temperature of the temperature monitoring points during the device charging monitoring period;

[0165] Obtain the rated charging temperature value of the battery corresponding to the target charging device, compare each peak temperature value of the monitoring point with the rated charging temperature value of the battery. If the rated charging temperature value of the battery is greater than or equal to the rated charging temperature value of the battery, mark the corresponding rated charging temperature value of the battery as an abnormal charging temperature value. If the rated charging temperature value of the battery is less than the rated charging temperature value of the battery, mark the corresponding rated charging temperature value of the battery as a normal charging temperature value;

[0166] Name the multiple obtained abnormal charging temperature values as the Y1 charging temperature value to the Yb charging temperature value;

[0167] It should be noted here that:

[0168] In this application, Y involved here is the identifier corresponding to the abnormal charging temperature value, b is the quantity value corresponding to the abnormal charging temperature value, and b is an integer greater than 0.

[0169] Obtain the duration when the battery temperature of the target charging device is at the Y1 charging temperature value to get the Y1 temperature duration, obtain the duration when the battery temperature of the target charging device is at the Y2 charging temperature value to get the Y2 temperature duration, and so on, obtain the duration when the battery temperature of the target charging device is at the Ya charging temperature value to get the Ya temperature duration;

[0170] Calculate the charging temperature anomaly coefficient from the Y1 charging temperature value to the Yb charging temperature value and the Y1 temperature duration to the Ya temperature duration;

[0171] Calculate the charging temperature anomaly coefficient, and the specific formula is as follows:

[0172]

[0173] Among them, Wyx is the charging temperature anomaly coefficient, Wyz i is the Yi charging temperature value, Wsc i is the Yi temperature duration, and b is the quantity value corresponding to the abnormal charging temperature value;

[0174] It should be noted here that:

[0175] In this application, the Yi charging temperature value involved here can be any one of the charging temperature values from the Y1 charging temperature value to the Yb charging temperature value, and the Yi temperature duration involved here is any one of the temperature durations from the Y1 temperature duration to the Ya temperature duration.

[0176] In specific implementation, there are the following experimental data:

[0177] It is measured through experiments that Wyz1 is 40°C, Wsc1 is 0.5 min, Wyz2 is 41°C, Wsc2 is 0.2 min, Wyz3 is 46°C, Wsc1 is 0.1 min, then the calculated charging temperature anomaly coefficient is 11;

[0178] Define the charging power anomaly coefficient and the charging temperature anomaly coefficient as the charging device monitoring data;

[0179] The data acquisition module obtains the charging device monitoring data and transmits it to the anomaly detection module;

[0180] The anomaly detection module performs charging status anomaly detection on the target charging device based on the monitoring data of the charging device, divides the charging status of the target charging device according to the detection results, and obtains charging status analysis data according to the division results;

[0181] Obtain the monitoring data of the charging device, and respectively obtain the charging power anomaly coefficient and the charging temperature anomaly coefficient according to the monitoring data of the charging device;

[0182] Obtain the charging power anomaly warning range and the charging temperature anomaly warning range;

[0183] It should be noted here that:

[0184] In this application, the charging power anomaly warning range refers to the power range at which the charging pile or charging system triggers a warning when detecting that the charging power exceeds the normal range. This range is designed to protect the charging device from possible damage caused by excessive or too low power. The charging temperature anomaly warning range refers to the temperature range at which the charging calculation system triggers a warning when detecting that the charging temperature exceeds the normal range. This range is designed to prevent equipment damage, battery performance degradation or safety accidents caused by too high or too low temperature;

[0185] In this application, the charging power anomaly warning range and the charging temperature anomaly warning range involved here need to be specifically set according to the battery specifications of the target charging device;

[0186] Judge the charging status of the target charging device according to the charging power anomaly coefficient, the charging temperature anomaly coefficient, the charging power anomaly warning range and the charging temperature anomaly warning range, and obtain the charging status analysis data;

[0187] If the charging power anomaly coefficient is within the charging power anomaly warning range and the charging temperature anomaly coefficient is within the charging temperature anomaly warning range, it is determined that the target charging device is in an abnormal charging state;

[0188] If the charging power anomaly coefficient is within the charging power anomaly warning range and the charging temperature anomaly coefficient is not within the charging temperature anomaly warning range, it is determined that the target charging device is in an abnormal charging state;

[0189] If the charging power anomaly coefficient is not within the charging power anomaly warning range and the charging temperature anomaly coefficient is within the charging temperature anomaly warning range, it is determined that the target charging device is in an abnormal charging state;

[0190] If the charging power anomaly coefficient is not within the charging power anomaly warning range and the charging temperature anomaly coefficient is not within the charging temperature anomaly warning range, it is determined that the target charging device is in a normal charging state;

[0191] The duration calculation module calculates the remaining charging duration of the target charging device in the normal charging state based on the charging status analysis data, and issues a charging anomaly warning for the target charging device in the abnormal charging state;

[0192] Specifically as follows:

[0193] Obtain the charging status analysis data, and respectively obtain the target charging devices in the normal charging state and the abnormal charging state according to the charging status analysis data;

[0194] When the target charging device is in the abnormal charging state, the calculation system issues a charging status anomaly warning;

[0195] When the target charging device is in the normal charging state, the calculation system obtains the battery capacity to be charged corresponding to the target charging device, and obtains the current charging power of the current target charging device to obtain the real-time charging power, and calculates the ratio of the battery capacity to be charged to the real-time charging power to obtain the remaining charging duration;

[0196] It should be noted here that:

[0197] In this application, the battery capacity to be charged involved here is specifically the difference between the total battery capacity and the current battery capacity.

[0198] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art in the technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A method for calculating the remaining charging time, characterized in that: include: Step S1: periodically monitoring the charging data corresponding to the target charging device, and obtaining the charging power abnormality coefficient and the charging temperature abnormality coefficient according to the monitoring results to obtain the charging device monitoring data; Step S2: performing a charging state abnormality detection on the target charging device according to the monitoring data of the charging device, and classifying the charging state of the target charging device according to the detection result to obtain charging state analysis data; Step S3: Calculate the remaining charging time for the target charging device in a normal charging state according to the charging state analysis data, and issue a charging abnormality warning for the target charging device in an abnormal charging state.

2. A method for calculating the remaining charging time according to claim 1, characterized in that: The step S1 further includes the following specific steps: Step S11: acquiring the deployed charging devices, and selecting a target charging device from the acquired multiple charging devices; Step S12: When the target charging device is in a charging state, mark a device charging monitoring cycle; Step S13: monitoring the power data of the target charging device in the device charging monitoring period, and obtaining the charging power abnormality coefficient according to the monitoring result; Step S14: monitoring the temperature data of the target charging device in the device charging monitoring period, and obtaining the charging temperature abnormality coefficient according to the monitoring result; Get charging equipment monitoring data.

3. A method for calculating the remaining charging time according to claim 2, characterized in that: The step S13 further includes the following specific steps: Step S131: Mark the D1 power time point to the Da power time point during the device charging monitoring cycle; Step S132: monitoring the power data deviation of the target charging device at the D1 power time point to obtain the D1 charging voltage deviation and the D1 charging voltage deviation; Step S133: respectively acquiring the charging current deviations corresponding to the D2 power time point to the Da power time point, and obtaining the D2 charging current deviation to the Da charging current deviation; Step S134: respectively acquiring the charging voltage deviations corresponding to the D2 power time point to the Da power time point, and obtaining the D2 charging voltage deviation to the Da charging voltage deviation; Step S135: calculating the charging power abnormality coefficient by converting the D1 charging voltage deviation to the Da charging voltage deviation and the D1 charging current deviation to the Da charging current deviation; Calculate the abnormal coefficient of charging power.

4. A method for calculating the remaining charging time according to claim 3, characterized in that: The step S132 further includes the following specific steps: Obtain the charging voltage value of the target charging device at the D1 power time point to obtain the D1 charging voltage value, obtain the charging current value of the target charging device at the D1 power time point to obtain the D1 charging voltage value; Get the charging rated current range corresponding to the target charging device. If the D1 charging current value is within the charging rated current range, use the value 0 to assign a parameter to the D1 charging current deviation. If the D1 charging current value is greater than or equal to the upper limit of the charging rated current interval, the difference between the D1 charging current value and the upper limit of the charging rated current interval is calculated, and the absolute value of the obtained difference is taken to obtain the D1 charging current deviation; If the D1 charging current value is less than or equal to the lower limit of the charging rated current interval, the difference between the D1 charging current value and the lower limit of the charging rated current interval is calculated, and the absolute value of the obtained difference is taken to obtain the D1 charging current deviation; Obtain the charging rated voltage range corresponding to the target charging device. If the D1 charging voltage value is within the charging rated voltage range, use the value 0 to assign a parameter to the D1 charging voltage deviation. If the D1 charging voltage value is greater than or equal to the upper limit of the charging rated voltage range, then the difference between the D1 charging voltage value and the upper limit of the charging rated voltage range is calculated, and the absolute value of the obtained difference is taken to obtain the D1 charging voltage deviation; If the D1 charging voltage value is less than or equal to the lower limit of the charging rated voltage range, the difference between the D1 charging voltage value and the lower limit of the charging rated voltage range is calculated, and the absolute value of the obtained difference is taken to obtain the D1 charging voltage deviation.

5. A method for calculating the remaining charging time according to claim 2, characterized in that: The step S14 further includes the following specific steps: Mark several temperature monitoring points at the battery position of the target charging device, perform real-time temperature monitoring on each temperature monitoring point, obtain the maximum monitoring temperature of each temperature monitoring point during the device charging monitoring cycle, and obtain the peak temperature values ​​of multiple monitoring points; Obtain the battery rated charging temperature value corresponding to the target charging device, compare the peak temperature value of each monitoring point with the battery rated charging temperature value, if the battery rated charging temperature value is greater than or equal to the battery rated charging temperature value, mark the corresponding battery rated charging temperature value as an abnormal charging temperature value, if the battery rated charging temperature value is less than the battery rated charging temperature value, mark the corresponding battery rated charging temperature value as a normal charging temperature value; The acquired multiple abnormal charging temperature values ​​are named as Y1 charging temperature value to Yb charging temperature value.

6. A method for calculating the remaining charging time according to claim 2, characterized in that: The step S14 further includes the following specific steps: Obtain the duration of the target charging device battery temperature at the Y1 charging temperature value, and obtain the Y1 temperature duration. Similarly, obtain the duration of the target charging device battery temperature at the Ya charging temperature value, and obtain the Ya temperature duration. The abnormal charging temperature coefficient is calculated by converting the Y1 charging temperature value to the Yb charging temperature value and the Y1 temperature duration to the Ya temperature duration; Calculate the charging temperature anomaly coefficient.

7. A method for calculating the remaining charging time according to claim 1, characterized in that: The step S2 further includes the following specific steps: Step S21: Acquire monitoring data of the charging device, and acquire a charging power abnormality coefficient and a charging temperature abnormality coefficient respectively according to the monitoring data of the charging device; Step S22: Obtaining a charging power abnormality warning interval and a charging temperature abnormality warning interval; Step S23: judging the charging state of the target charging device according to the abnormal charging power coefficient, the abnormal charging temperature coefficient, the abnormal charging power warning interval and the abnormal charging temperature warning interval to obtain charging state analysis data.

8. A method for calculating the remaining charging time according to claim 7, characterized in that: The step S23 further includes the following specific steps: If the charging power abnormality coefficient is in the charging power abnormality warning interval, and the charging temperature abnormality coefficient is in the charging temperature abnormality warning interval, it is determined that the target charging device is in an abnormal charging state; If the charging power abnormality coefficient is in the charging power abnormality warning interval, and the charging temperature abnormality coefficient is not in the charging temperature abnormality warning interval, it is determined that the target charging device is in an abnormal charging state; If the charging power abnormality coefficient is not in the charging power abnormality warning interval, and the charging temperature abnormality coefficient is in the charging temperature abnormality warning interval, it is determined that the target charging device is in an abnormal charging state; If the charging power abnormality coefficient is not in the charging power abnormality warning interval, and the charging temperature abnormality coefficient is not in the charging temperature abnormality warning interval, it is determined that the target charging device is in a normal charging state.

9. A method for calculating the remaining charging time according to claim 1, characterized in that: The step S3 further includes the following specific steps: Acquire charging status analysis data, and acquire target charging devices in a normal charging state and an abnormal charging state respectively according to the charging status analysis data; If the target charging device is in an abnormal charging state, issue an abnormal charging state warning; If the target charging device is in a normal charging state, the capacity of the battery to be charged corresponding to the target charging device is obtained, and the charging power of the current target charging device is obtained to obtain the real-time charging power, and the ratio of the battery capacity to be charged to the real-time charging power is calculated to obtain the remaining charging time.

10. A system for calculating the remaining charging time, applicable to a method for calculating the remaining charging time as claimed in any one of claims 1 to 9, characterized in that: The computing system comprises: Data acquisition module: periodically monitors the charging data corresponding to the target charging device, and obtains the charging power abnormality coefficient and the charging temperature abnormality coefficient according to the monitoring results to obtain the charging device monitoring data; Abnormality detection module: detect abnormality of charging status of target charging equipment according to monitoring data of charging equipment, divide charging status of target charging equipment according to detection results, and obtain charging status analysis data; Duration calculation module: Calculates the remaining charging time for target charging devices in normal charging state based on charging status analysis data, and issues abnormal charging warnings for target charging devices in abnormal charging state.

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