Electric quantity prompting method and system, terminal equipment and storage medium

Abstract

The invention belongs to the technical field of vehicles, and discloses an electric quantity prompting method and system, terminal equipment and a storage medium, and the method comprises the following steps: detecting electric quantity information of a battery pack in a tire pressure sensor in different states, and respectively obtaining a maximum terminal voltage, a real-time voltage and a cut-off voltage; acquiring the health state of the battery according to the maximum terminal voltage, the cut-off voltage and the real-time voltage; controlling a periodic detection mode of the tire pressure sensor according to a preset health state interval in which the battery health state is located; predicting the number of remaining use days of the battery according to a periodic battery health state and a periodic environment temperature parameter obtained in the periodic detection mode; according to the preset time interval of the remaining use days of the battery, the prompting mode of the electric quantity information of the battery pack is controlled, and the electric quantity is intelligently prompted after the electric quantity of the battery pack in the tire pressure sensor is dynamically detected, so that the detection efficiency, the detection precision and the automobile safety are improved.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and particularly to a method and system for power level indication, a terminal device, and a storage medium. Background Art

[0002] With the increasing emphasis on automotive safety performance, the Tire Pressure Monitoring System (TPMS) has become one of the important configurations for vehicle safety. Existing TPMS systems can monitor the air pressure and temperature of tires in real time, but most systems lack the function of detecting the battery power of the tire pressure sensor, resulting in users or maintenance personnel being unable to understand the battery life of the tire pressure sensor. This can affect the user experience and may also pose a safety hazard due to the depletion of the sensor battery.

[0003] Therefore, the existing technology still needs to be improved. Summary of the Invention

[0004] This application provides a method and system for power level indication, a terminal device, and a storage medium, aiming to solve the problem of low safety caused by the inability to monitor the battery power of the tire pressure sensor in the existing technology.

[0005] In a first aspect, an embodiment of this application provides a method for power level indication, including:

[0006] Detect the power level information of the battery pack in the tire pressure sensor under different states, and respectively obtain the maximum terminal voltage, real-time voltage, and cut-off voltage;

[0007] Obtain the battery health status based on the maximum terminal voltage, the cut-off voltage, and the real-time voltage;

[0008] Control the periodic detection mode of the tire pressure sensor according to the preset health status range where the battery health status is located;

[0009] Predict the remaining number of days of battery usage based on the periodic battery health status and periodic ambient temperature parameters obtained in the periodic detection mode;

[0010] Control the indication method of the power level information of the battery pack according to the preset time interval where the remaining number of days of battery usage is located.

[0011] In some embodiments, the obtaining the battery health status based on the maximum terminal voltage, the cut-off voltage, and the real-time voltage includes:

[0012] Calculate the voltage attenuation amount of the battery pack based on the maximum terminal voltage and the real-time voltage;

[0013] Calculate the effective voltage range based on the maximum terminal voltage and the cut-off voltage;

[0014] After obtaining the battery attenuation ratio based on the voltage attenuation amount and the effective voltage range, convert the battery attenuation ratio into a percentage to obtain the battery health state;

[0015] Among them, the calculation formula for the battery health state is: SOH = [1 - (A - B) / (A - C)] * 100%;

[0016] In the formula, SOH is the battery health state, A is the maximum terminal voltage, B is the real-time voltage, and C is the cut-off voltage.

[0017] In some embodiments, controlling the periodic detection mode of the tire pressure sensor according to the preset health state interval where the battery health state is located includes:

[0018] If the battery health state is in the first health state interval, control the power detection module in the tire pressure sensor to detect the battery pack according to the first detection mode;

[0019] If the battery health state is in the second health state interval, control the power detection module to detect the battery pack according to the second detection mode;

[0020] If the battery health state is in the third health state interval, control the power detection module to detect the battery pack according to the third detection mode;

[0021] Among them, the preset health state interval is divided into three adjacent intervals to obtain the first health state interval, the second health state interval, and the third health state interval; the detection periods among the first detection mode, the second detection mode, and the third detection mode are different.

[0022] In some embodiments, predicting the remaining service days of the battery according to the periodic battery health state and the periodic ambient temperature parameter obtained in the periodic detection mode includes:

[0023] After obtaining the battery health state and the ambient temperature parameter of at least one current period according to the periodic detection mode, obtain the periodic battery health state and the periodic ambient temperature parameter;

[0024] Substitute the periodic battery health state and the periodic ambient temperature parameter into the battery life prediction model for prediction to obtain the remaining service days of the battery;

[0025] Among them, the battery life prediction model includes: a lightweight random forest regression model.

[0026] In some embodiments, controlling the prompting manner of the power information of the battery pack according to the preset time interval in which the remaining service days of the battery are located includes:

[0027] If the remaining service days of the battery are in the first time interval, controlling to display the power information in a first prompting manner;

[0028] If the remaining service days of the battery are in the second time interval, controlling to display the power information in a second prompting manner;

[0029] If the remaining service days of the battery are in the third time interval, controlling to display the power information in a third prompting manner;

[0030] If the remaining service days of the battery are in the fourth time interval, controlling to prompt the power information in a fourth prompting manner;

[0031] Wherein, the first prompting manner is to display with a first-color icon on the target application of the display terminal; the second prompting manner is to display with a second-color icon on the target application; the third prompting manner is to display on the target application and the central control screen of the vehicle; the fourth prompting manner is to give an alarm by the speaker of the display terminal and the buzzer of the vehicle.

[0032] In some embodiments, detecting the power information of the battery pack in the tire pressure sensor in different states to obtain the maximum terminal voltage, real-time voltage and cut-off voltage respectively includes:

[0033] When the battery pack is in the maximum discharge state and the discharge cut-off state, respectively controlling the power detection module in the tire pressure sensor to detect the power of the battery pack, and correspondingly obtaining the maximum terminal voltage and the cut-off voltage;

[0034] When the battery pack is in the normal working state, controlling the power detection module to detect the power of the battery pack in real time to obtain the real-time voltage.

[0035] In a second aspect, an embodiment of the present application provides a power prompting system, including: a tire pressure sensor and a central control unit; the central control unit is connected to the tire pressure sensor;

[0036] The tire pressure sensor is configured to detect the power information of the battery pack in the tire pressure sensor in different states to obtain the maximum terminal voltage, real-time voltage and cut-off voltage respectively for the central control unit to obtain the battery health state; and control the periodic detection mode of the tire pressure sensor according to the preset health state interval where the battery health state is located to obtain the periodic battery health state and periodic ambient temperature parameters of the battery pack in the periodic detection mode;

[0037] The central control unit is configured to call a battery life prediction model to predict the remaining number of days of battery use based on the periodic battery health status and the periodic ambient temperature parameter; and control the prompting manner of the power information of the battery pack according to the preset time interval where the remaining number of days of battery use is located.

[0038] In some embodiments, the power prompting system further includes: a display terminal, a central control screen, and a buzzer; the central control unit is respectively connected to the display terminal, the central control screen, and the buzzer;

[0039] The display terminal is configured to display the power information in a first prompting manner, a second prompting manner, and a third prompting manner respectively when the remaining number of days of battery use is in a first time interval, a second time interval, and a third time interval; and prompt the power information in a fourth prompting manner when the remaining number of days of battery use is in a fourth time interval;

[0040] The central control screen is configured to display the power information in the third prompting manner when the remaining number of days of battery use is in the third time interval;

[0041] The buzzer is configured to prompt the power information in the fourth prompting manner when the remaining number of days of battery use is in the fourth time interval;

[0042] Wherein, the first prompting manner is to display with a first color icon on the target application of the display terminal; the second prompting manner is to display with a second color icon on the target application; the third prompting manner is to display on the target application and the central control screen; the fourth prompting manner is for the speaker of the display terminal and the buzzer to give an alarm.

[0043] In a third aspect, an embodiment of the present application provides a terminal device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where when the computer program is executed by the processor, the steps of the power prompting method described above are implemented.

[0044] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, where when the computer program is executed by a processor, the steps of the power prompting method described above are implemented.

[0045] Compared with the prior art, a power consumption prompting method, system, terminal device and storage medium provided by the present application. After obtaining the battery health state according to the detected maximum terminal voltage, cut-off voltage and real-time voltage, the method controls the periodic detection mode of the tire pressure sensor according to the preset health state interval where the battery health state is located, and predicts the remaining service days of the battery according to the periodic battery health state and periodic ambient temperature parameters obtained in the periodic detection mode, so as to control the prompting mode of the power information of the battery pack, realizing dynamic optimization of the power detection frequency and dynamic power consumption prompting, improving the detection efficiency, detection accuracy, experience and convenience, prolonging the service life of the battery pack in the sensor, and enhancing the reliability of vehicle safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0047] Figure 1 It is a structural diagram of a power consumption prompting system provided by the present application;

[0048] Figure 2 It is a flowchart of a power consumption prompting method provided by the present application;

[0049] Figure 3 It is a flowchart of obtaining three voltages in the power consumption prompting method provided by the present application;

[0050] Figure 4 It is a flowchart of solving the battery health state in the power consumption prompting method provided by the present application;

[0051] Figure 5 It is a flowchart of controlling the periodic detection mode in the power consumption prompting method provided by the present application;

[0052] Figure 6 It is a flowchart of predicting the remaining service days of the battery in the power consumption prompting method provided by the present application;

[0053] Figure 7 It is a flowchart of controlling the prompting mode of the power information in the power consumption prompting method provided by the present application.

[0054] Reference numerals: 10: tire pressure sensor; 11: power consumption detection module; 20: vehicle; 21: central control unit; 22: central control screen; 23: buzzer; 30: display terminal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0056] The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0057] In the following, the terms "including", "having" and their cognates that can be used in various embodiments of the present application are only intended to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be construed as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or increasing the possibility of one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0058] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the various embodiments of the present application belong. The terms (such as those defined in a general-use dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or being overly formal, unless clearly defined in the various embodiments of the present application.

[0059] The present application provides a power quantity prompting method, system, terminal device and storage medium. After obtaining the battery health state by detecting the maximum terminal voltage, cut-off voltage and real-time voltage, the power quantity prompting method controls the periodic detection mode of the tire pressure sensor according to the preset health state interval where the battery health state is located, and predicts the remaining service days of the battery according to the periodic battery health state and periodic ambient temperature parameters obtained in the periodic detection mode, so as to control the prompting manner of the power quantity information of the battery pack, realizing dynamic optimization of the power quantity detection frequency and dynamic power quantity prompting, improving the detection efficiency, detection accuracy, experience and convenience, prolonging the service life of the battery pack in the sensor, and enhancing the reliability of vehicle safety.

[0060] The design scheme of the power quantity prompting method will be described below through some specific embodiments.

[0061] Please refer to Figure 1 , an embodiment of the present application provides a power quantity prompt system, including: a tire pressure sensor 10 and a central control unit 21; the central control unit 21 is connected to the tire pressure sensor 10.

[0062] The tire pressure sensor 10 is configured to detect the power quantity information of the battery pack in the tire pressure sensor 10 under different states, and respectively obtain the maximum terminal voltage, the real-time voltage, and the cut-off voltage, so as to enable the central control unit 21 to obtain the battery health state; and control the periodic detection mode of the tire pressure sensor 10 according to the preset health state interval where the battery health state is located, so as to obtain the periodic battery health state and the periodic ambient temperature parameter of the battery pack in the periodic detection mode.

[0063] The central control unit 21 is configured to call a battery life prediction model to predict the remaining service days of the battery according to the periodic battery health state and the periodic ambient temperature parameter; and control the prompt mode of the power quantity information of the battery pack according to the preset time interval where the remaining service days of the battery are located.

[0064] Among them, the central control unit 21 is the ECU (Electronic Control Unit, Chinese name is Electronic Control Unit) of the vehicle 20, which is the core control unit of the automotive electronic system. The power quantity information includes power quantity value, power quantity display icon, power quantity remaining ratio value, etc.

[0065] Exemplarily, the implementation process of the power quantity prompt system is as follows:

[0066] First, in the maximum discharge state, the normal working state, and the discharge cut-off state, the power quantity detection module 11 in the tire pressure sensor 10 respectively detects the power quantity of the battery pack in the tire pressure sensor 10, and correspondingly obtains the maximum terminal voltage, the real-time voltage, and the cut-off voltage. The central control unit 21 then substitutes the maximum terminal voltage, the real-time voltage, and the cut-off voltage into the calculation formula of the battery health state to obtain the battery health state.

[0067] Then, the tire pressure sensor 10 controls the periodic detection mode of the tire pressure sensor 10 according to the preset health state interval where the battery health state is located. For example, when SOH>80%, the detection period is once every 30 days. And within at least one detection period, the battery pack is detected in the periodic detection mode, and the voltages at different time points during the charge and discharge process of the battery pack, as well as the external temperature when the battery pack is working, are recorded to obtain the periodic battery health state and the periodic ambient temperature parameter of the battery pack.

[0068] Secondly, the wireless communication module in the tire pressure sensor 10 needs to convert the periodic battery health status and periodic ambient temperature parameters into digital signals suitable for wireless transmission, for example, convert them into 16-bit binary values in a preset manner. For example: 0% → 0000 0000 0000 0000; 25% → 0011 1111 1111 1111; 50% → 0111 1111 1111 1111; 75% → 1011 1111 1111 1111; 100% → 1111 1111 1111 1111. After that, the wireless communication module encodes the digital signal, the preset synchronization header, and the preset check code into battery power data and sends it to the central control unit 21 on the vehicle 20.

[0069] Furthermore, the central control unit 21 decodes the battery power data, analyzes and obtains the periodic battery health status and periodic ambient temperature parameters of the digital signal, and calls the battery life prediction model to predict the remaining number of days of battery use based on the periodic battery health status and periodic ambient temperature parameters.

[0070] Finally, the central control unit 21 controls the prompting method of the battery pack's power information according to the preset time interval where the remaining number of days of battery use is located, that is, determines the preset time interval where the remaining number of days of battery use is located and controls the power information to be prompted in a corresponding manner.

[0071] Taking the encoding and decoding of power information as an example (here the power information is the battery health status of the digital signal, and the encoding and decoding processes of the periodic battery health status and periodic ambient temperature parameters are the same), the implementation process is as follows:

[0072] 1. Encoding process: (1). Synchronization header: Select a fixed synchronization header to identify the start of the data packet. For example, use 0xAA or 0x55.

[0073] (2). Power information: Convert the 16-bit binary power information into two bytes. For example, the power percentage is 75%, mapped to the 16-bit binary value 0xBFFF (decimal 49151), which can be split into two bytes: 0xBF and 0xFF.

[0074] (3). CRC check code: Calculate the CRC check code. CRC check is a commonly used check method that can detect errors in data transmission. For example, use the CRC-8 algorithm to calculate the check code: Combine the synchronization header and power information into a byte array. Use the CRC-8 algorithm to calculate the check code.

[0075] (4). Data packet format: Combine the synchronization header, power information, and CRC check code into a complete data packet. For example: synchronization header (one byte) + power information (two bytes) + check code (one byte).

[0076] 2. Decoding process: (1) Verify the sync header: First, check if the sync header is correct. If the sync header does not match, it indicates that the data packet may be damaged or received incorrectly.

[0077] (2) Calculate the CRC checksum: Use the same CRC algorithm to calculate the checksum of the received data packet and compare it with the CRC checksum in the data packet. If the checksums match, it indicates that the data is complete; otherwise, the data may be damaged during transmission.

[0078] (3) Extract the power information: If the CRC check passes, extract the power information (16-bit binary value) from the data packet.

[0079] It can be understood that after the tire pressure sensor 10 in this application detects three voltages of the internal battery pack in three working states respectively, the central control unit 21 obtains the battery health status based on these three voltages. The tire pressure sensor 10 then controls the periodic detection mode of the tire pressure sensor 10 according to the preset health status interval where the battery health status is located, so as to obtain the periodic battery health status and periodic ambient temperature parameters of the battery pack in the periodic detection mode. After the central control unit 21 predicts the remaining battery life days based on the periodic battery health status and periodic ambient temperature parameters, the power is prompted in a corresponding prompt manner, realizing real-time monitoring and accurate prediction of the power of the battery pack in the tire pressure sensor 10, and giving a timely reminder when the power is low or out of power, intelligently reminding the user to replace the tire pressure sensor 10 in time, improving the user experience while effectively avoiding potential safety hazards caused by sensor failure due to the depletion of the battery pack's power, ultimately improving the reliability of vehicle safety.

[0080] In an implementation method, the power prompt system further includes: a display terminal 30, a central control screen 22, and a buzzer 23; the central control unit 21 is respectively connected to the display terminal 30, the central control screen 22, and the buzzer 23. The display terminal 30 is used to display the power information in a first prompt manner, a second prompt manner, and a third prompt manner respectively when the remaining battery life days are in a first time interval, a second time interval, and a third time interval; and to prompt the power information in a fourth prompt manner when the remaining battery life days are in a fourth time interval.

[0081] The central control screen 22 is used to display the power information in a third prompt manner when the remaining battery life days are in a third time interval.

[0082] The buzzer 23 is used to prompt the power information in a fourth prompt manner when the remaining battery life days are in a fourth time interval;

[0083] Among them, the first prompting method is to display with a first-color icon on the target application of the display terminal 30; the second prompting method is to display with a second-color icon on the target application; the third prompting method is to display on the target application and the central control screen 22; the fourth prompting method is for the speaker and buzzer 23 of the display terminal 30 to give an alarm.

[0084] Among them, in this embodiment, the display terminal 30 can be a mobile phone or an external display, etc. Among them, the first time interval is more than 30 days, the second time interval is within 7 days to 30 days (including 30 days), the third time interval is within 3 days to 7 days (including 7 days), and the fourth time interval is within 3 days (including 3 days). The target application is a power display application software pre-installed on the mobile phone. The first-color icon can be a green icon, and the second-color icon can be an orange icon. In this embodiment, the time interval and the color icon can both be adjusted and set according to actual needs.

[0085] Exemplarily, when prompting the power according to the remaining battery usage days in a corresponding prompting manner:

[0086] If the remaining battery usage days are in the first time interval (such as more than 30 days), the power with the first-color icon (such as green) will be displayed on the target application of the display terminal 30; if the remaining battery usage days are in the second time interval (such as within 7 days to 30 days), the power with the second-color icon (such as orange) will be displayed on the target application of the display terminal 30.

[0087] Then, if the remaining battery usage days are in the third time interval (such as within 3 days to 7 days), the power information of the battery pack will be displayed on both the target application of the display terminal 30 and the central control screen 22 of the vehicle 20; and if the remaining battery usage days are in the fourth time interval (such as within 3 days), the speaker of the display terminal 30 and the buzzer 23 of the vehicle 20 will directly give an alarm.

[0088] Please refer to Figure 2 , this application embodiment provides a power prompting method, which is implemented based on the power prompting system of the above embodiment. Then, the implementation process of the power prompting method includes steps S100 - S500:

[0089] S100. Detect the power information of the battery pack in the tire pressure sensor 10 in different states, and respectively obtain the maximum terminal voltage, real-time voltage, and cut-off voltage.

[0090] Among them, the different states in the embodiments of the present application mainly include the following three working states: the maximum discharge state, the normal working state, and the discharge cut-off state; among them, the maximum terminal voltage refers to the potential difference between the positive and negative poles of the battery pack when the battery pack is in the maximum terminal voltage discharge state (i.e., the maximum discharge state). The cut-off voltage is the lowest safe voltage when the battery pack discharges to termination, also known as the discharge cut-off voltage.

[0091] Exemplarily, when the tire pressure sensor 10 works in the maximum discharge state, the normal working state, and the discharge cut-off state respectively, the voltage of the battery pack in the tire pressure sensor 10 is measured, and the maximum terminal voltage, the real-time voltage, and the cut-off voltage are obtained correspondingly, so as to calculate the state of health of the battery according to these three voltages.

[0092] In one implementation method, please refer to Figure 3 , S100, detect the power information of the battery pack in the tire pressure sensor 10 in different states, and obtain the maximum terminal voltage, the real-time voltage, and the cut-off voltage respectively, including:

[0093] S110, when the battery pack is in the maximum discharge state and the discharge cut-off state, respectively control the power detection module 11 in the tire pressure sensor 10 to detect the power of the battery pack, and obtain the maximum terminal voltage and the cut-off voltage correspondingly;

[0094] S120, when the battery pack is in the normal working state, control the power detection module 11 to detect the power of the battery pack in real time, and obtain the real-time voltage.

[0095] Among them, in the present application, the power detection module 11 is integrated in the tire pressure sensor 10 to detect the power in the tire pressure sensor 10. Among them, the power detection module 11 includes: a fuel gauge chip, a battery pack management integrated circuit, a Hall current sensor, an analog-to-digital converter, or a temperature sensor, etc.

[0096] Exemplarily, during the process of measuring the three voltages of the battery pack:

[0097] When the battery pack is in the maximum discharge state, the power detection module 11 detects the voltage of the battery pack in the tire pressure sensor 10 and obtains the maximum terminal voltage. However, when the battery pack is in the discharge cut-off state, the power detection module 11 detects the voltage of the battery pack and obtains the cut-off voltage. For example, the working voltage range of a lithium battery pack is usually 2.8V - 4.2V. Then, at this time, the maximum terminal voltage is 4.2V, and the cut-off voltage is 2.8V.

[0098] And, when the battery pack is in the normal working state, the power detection module 11 detects the voltage of the battery pack in real time and obtains the real-time voltage, which reflects the current actual state of the battery pack. For example, a Hall voltage sensor can be used to isolate and measure the voltage of a high-voltage battery pack.

[0099] S200. Obtain the battery health state according to the maximum terminal voltage, cut-off voltage, and real-time voltage.

[0100] Exemplarily, after obtaining the maximum terminal voltage, cut-off voltage, and real-time voltage, substitute the maximum terminal voltage, cut-off voltage, and real-time voltage into the calculation formula of the battery health state to calculate the battery health state.

[0101] It can be understood that in this application, by separately measuring the voltages of the battery pack in the tire pressure sensor 10 under three working states and substituting the three voltages into the calculation formula of the battery health state, the battery health state is calculated to provide an adjustment basis for adjusting the measurement period of the battery pack, making the measurement method more scientific and energy-saving.

[0102] In one implementation method, please refer to Figure 4 , S200. Obtain the battery health state according to the maximum terminal voltage, cut-off voltage, and real-time voltage, including:

[0103] S210. Calculate the voltage attenuation of the battery pack according to the maximum terminal voltage and real-time voltage;

[0104] S220. Calculate the effective voltage range according to the maximum terminal voltage and cut-off voltage;

[0105] S230. After obtaining the battery attenuation ratio according to the voltage attenuation and the effective voltage range, convert the battery attenuation ratio into a percentage to obtain the battery health state.

[0106] Exemplarily, the specific process of solving the battery health state is as follows:

[0107] First, subtract the real-time voltage from the maximum terminal voltage to calculate the voltage attenuation of the battery pack, and subtract the cut-off voltage from the maximum terminal voltage to calculate the effective voltage range of the battery pack.

[0108] Then, divide the voltage attenuation by the effective voltage range to obtain the attenuation ratio, and convert the result of 1 - the attenuation ratio into a percentage to obtain the battery health state.

[0109] That is, the calculation formula of the battery health state is: SOH = [1 - (A - B) / (A - C)] * 100%; (1)

[0110] In formula (1), SOH is the battery health state, A is the maximum terminal voltage, B is the real-time voltage, and C is the cut-off voltage.

[0111] S300. Control the periodic detection mode of the tire pressure sensor 10 according to the preset health state interval where the battery health state is located.

[0112] Exemplarily, after calculating the battery health state, according to the preset health state interval in which the battery health state is located, the power detection module 11 is controlled to detect the battery pack in a corresponding periodic detection mode.

[0113] It can be understood that in this application, the battery health state is divided into a preset number of intervals, and the battery pack detection period of the power detection module 11 is adjusted and controlled according to the battery health state. For example, the detection period duration is controlled to be proportional to the power amount. When the power is sufficient, the detection period is long, so as to dynamically optimize the power detection frequency, making the detection period more scientific. This not only improves the accuracy of the detection result, but also extends the service life of the battery pack in the sensor and saves the detection cost.

[0114] In one implementation method, please refer to Figure 5 , S300. Controlling the periodic detection mode of the tire pressure sensor 10 according to the preset health state interval where the battery health state is located includes:

[0115] S310. If the battery health state is in the first health state interval, control the power detection module 11 in the tire pressure sensor 10 to detect the battery pack according to the first detection mode;

[0116] S320. If the battery health state is in the second health state interval, control the power detection module 11 to detect the battery pack according to the second detection mode;

[0117] S330. If the battery health state is in the third health state interval, control the power detection module 11 to detect the battery pack according to the third detection mode.

[0118] Among them, the preset health state interval is divided into three adjacent intervals, obtaining the first health state interval, the second health state interval, and the third health state interval; the detection periods among the first detection mode, the second detection mode, and the third detection mode are different.

[0119] Among them, in this embodiment, the first health state interval is greater than 80% and not greater than 100%, the second health state interval is not less than 30% and not greater than 80%, and the third health state interval is less than 30%; the first detection mode is to detect the battery pack once every 30 days, the second detection mode is to detect the battery pack once every 15 days, and the third detection mode is to detect the battery pack once every 7 days. In this embodiment, both the detection period and the health state interval can be adjusted and set according to actual needs.

[0120] Exemplarily, the specific process of controlling the periodic detection mode is as follows:

[0121] When the SOH (State of Health of the battery) > 80% (the first health state range), the detection period is once every 30 days (the first detection mode), and at this time it is the low-power mode. When 30% ≤ SOH ≤ 80% (the second health state range), the detection period is once every 15 days (the second detection mode), and at this time it is the standard mode. When SOH < 30% (the third health state range), the detection period is once every 7 days (the third detection mode), and at this time it is the high-frequency mode.

[0122] It can be understood that after it is determined in the present application that the battery health state falls into one of the four health state ranges, the battery power is detected in the detection mode corresponding to the detection period, realizing the dynamic adjustment of the battery power detection period according to the real-time detected battery health state, and the smaller the battery health state, the shorter the detection period, that is, the more frequent the detection, thereby effectively improving the accuracy and precision of the battery power detection.

[0123] S400. Predict the remaining service life days of the battery according to the periodic battery health state and periodic ambient temperature parameters obtained in the periodic detection mode.

[0124] Exemplarily, after matching the current weekly detection mode according to the battery health state, within at least one detection period, the battery pack is detected in the periodic detection mode, and the voltages of the battery pack at different time points during the charge and discharge process, as well as the external temperature when the battery pack is working, are recorded to obtain the periodic battery health state and periodic ambient temperature parameters. Currents, etc. can also be collected simultaneously. Then, the periodic battery health state and periodic ambient temperature parameters are input into the battery pack life model to predict the remaining service life days of the battery to give a prompt for the service life days.

[0125] In one implementation method, please refer to Figure 6 , S400. Predict the remaining service life days of the battery according to the periodic battery health state and periodic ambient temperature parameters obtained in the periodic detection mode, including:

[0126] S410. After obtaining the battery health state and ambient temperature parameters under at least one current period according to the periodic detection mode, obtain the periodic battery health state and periodic ambient temperature parameters;

[0127] S420. Substitute the periodic battery health state and periodic ambient temperature parameters into the battery life prediction model for prediction to obtain the remaining service life days of the battery.

[0128] Among them, the battery life prediction model includes: a lightweight random forest regression model; it has been trained before using this model for prediction, and the training process will not be introduced in detail here.

[0129] Exemplarily, the specific process of predicting the remaining service life days of the battery is as follows:

[0130] First, according to the detection speed measurement in the periodic detection mode, obtain the battery health state and environmental temperature parameters under at least one current period to obtain the periodic battery health state and periodic environmental temperature parameters. For example, detect the battery health state and environmental temperature parameters every 7 days, and obtain the results of 4 detections as the periodic battery health state and periodic environmental temperature parameters.

[0131] Then, input the periodic battery health state and periodic environmental temperature parameters into the battery life prediction model, such as the lightweight random forest regression model, to extract features, such as the mean voltage or voltage standard deviation (reflecting the change in internal resistance), temperature fluctuation range or temperature entropy (measuring the uniformity of temperature distribution), and current integral (reflecting capacity attenuation), to predict the remaining number of days the battery can be used.

[0132] Among them, the prediction process of the battery life prediction model is as follows:

[0133] The input parameters of the battery life prediction model include: Current SOH: The current battery health state; Ambient temperature: The daily average temperature recorded by the sensor; Temperature fluctuation: The standard deviation of the temperatures detected in the past.

[0134] If it is assumed that the current SOH is 75.3%, the ambient temperature is 28.5°C, and the temperature difference fluctuation is 5.2, then the prediction process is as follows:

[0135] {

[0136] "Current SOH": 75.3;

[0137] "Ambient temperature": 28.5;

[0138] "Temperature fluctuation": 5.2

[0139] } Predict the remaining days of the battery based on these input parameters. For example: Determine the root node (current SOH):

[0140] |---- If the current SOH ≤ 80% → Enter the left subtree;

[0141] |----> If the temperature fluctuation ≥ 4°C → Predict the remaining days = 30;

[0142] |----> If the temperature fluctuation < 4°C → Predict the remaining days = 45;

[0143] |---- If the current SOH > 80% → Enter the right subtree;

[0144] ----> If the current temperature ≥ 35°C → Predict the remaining days = 60;

[0145] --->If the current temperature < 35°C → predicted remaining days = 75. Then, the finally predicted remaining days (i.e., the remaining battery usage days) is 30 days.

[0146] Among them, in this embodiment, the root node is the current SOH, the left subtree (the left fork of the root node) is the temperature fluctuation range, and the right subtree (the right fork of the root node) is the current temperature range. Here, it is just an example, and the content of the root node and its forks can be changed with each other according to the actual situation or requirements.

[0147] It can be understood that in this application, an intelligent large model such as a battery life prediction model is used to predict the remaining days of the battery, effectively improving the accuracy and efficiency of the prediction.

[0148] Furthermore, in another embodiment of this application, the battery health state can also be obtained in the following way: Set a proportional mapping relationship between the effective voltage within the effective voltage range and the battery percentage to obtain a preset mapping table. For example: 3.6V → 100%, 3.0V → 20%, 2.8V → 0%. Then, according to the real-time voltage measured in real time, query the preset mapping table to obtain the current battery percentage corresponding to the real-time voltage, that is, obtain the battery health state.

[0149] Then, the battery state can be directly displayed on the display terminal 30 in the form of graphics, numbers, color coding, or historical curves:

[0150] 1. Graphic display:

[0151] Bar chart: Display the comparison between the current battery percentage (i.e., the battery health state) and the historical average value (at this time, the average value of the periodic battery health state needs to be solved in the same way).

[0152] 2. Digital display:

[0153] The main interface directly displays "Battery percentage: 75%" or "Voltage: 3.3V".

[0154] 3. Color coding:

[0155] Green (>30%): Normal state.

[0156] Yellow (10% - 30%): It is recommended to pay attention.

[0157] Red (<10%): The battery pack needs to be replaced immediately.

[0158] 4. Historical curve (similarly, the periodic battery health state needs to be solved):

[0159] Provide the "Monthly battery percentage change curve", and the user can slide to view the trend.

[0160] S500. Control the prompting manner of the battery pack's power information according to the preset time interval in which the remaining battery usage days are located.

[0161] Exemplarily, after predicting the remaining battery days, determine the preset time interval in which the remaining battery usage days are located, and control the power information of the battery pack to be prompted in the corresponding prompting manner. For example, prompt with a power icon of a preset color on the mobile phone app, or perform a pop-up prompt on the vehicle 20's central control screen 22, etc. At the same time, the remaining battery usage days will also be displayed together to remind the user of the battery pack replacement time point.

[0162] It can be understood that in this application, by determining the preset time interval in which the remaining battery usage days are located, controlling to perform lighting reminders in the corresponding prompting manner, realizing intelligent hierarchical reminders in a scientific and efficient manner, effectively avoiding safety hazards caused by the depletion of the battery pack's power, and also improving the user experience.

[0163] In one implementation method, please refer to Figure 7 , S500. Control the prompting manner of the battery pack's power information according to the preset time interval in which the remaining battery usage days are located, including:

[0164] S510. If the remaining battery usage days are in the first time interval, control to display the power information in the first prompting manner;

[0165] S520. If the remaining battery usage days are in the second time interval, control to display the power information in the second prompting manner;

[0166] S530. If the remaining battery usage days are in the third time interval, control to display the power information in the third prompting manner;

[0167] S540. If the remaining battery usage days are in the fourth time interval, control to prompt the power information in the fourth prompting manner.

[0168] Similarly, divide the preset time interval into four adjacent time intervals to obtain the first time interval, the second time interval, the third time interval, and the fourth time interval.

[0169] Exemplarily, the specific process of controlling the prompting manner of the battery pack's power information is as follows:

[0170] When the remaining battery life exceeds 30 days (the first time interval), which belongs to the first prompt level, it is controlled to display the battery power on the battery power display application software (target application) of the mobile phone (display terminal 30) with a green icon (the first color icon), that is, to display the remaining battery power with a green battery power display icon; when the remaining battery life is within 7 to 30 days (the second time interval), which belongs to the second prompt level, it is controlled to display the battery power on the battery power display application software of the mobile phone with an orange icon (the second color icon).

[0171] Then, when the remaining battery life is within 3 to 7 days (the third time interval), which belongs to the third prompt level, it is controlled to directly display the battery pack power information in the target application and on the central control screen 22 of the vehicle 20, such as displaying the battery power value or the remaining battery power percentage value of the battery pack; when the remaining battery life is within 3 days (the fourth time interval), which belongs to the fourth prompt level, it is controlled to activate the speaker of the mobile phone and the buzzer 23 of the vehicle 20 for alarm. Of course, the remaining battery life will be directly displayed in all these four prompt methods.

[0172] It can be understood that after determining that the remaining battery life falls into one of the four time intervals, a corresponding prompt method is used for reminder. Moreover, the shorter the remaining battery life, the more prominent the prompt method and the more rapid the prompt frequency. It realizes corresponding prompts according to different remaining battery lives, so that users can replace the battery pack within the specified time, effectively avoiding potential safety hazards caused by the depletion of the battery pack power.

[0173] This application also provides a tire pressure sensor. Exemplarily, the tire pressure sensor includes a processor and a memory. Among them, the memory stores a computer program, and the processor runs the computer program to enable the tire pressure sensor to execute the above battery power prompt method or the functions of each module in the above battery power prompt system.

[0174] Among them, the processor can be an integrated circuit chip with signal processing capabilities. The processor can be a general-purpose processor, including at least one of a central processing unit (CPU), a graphics processing unit (GPU), a network processor (NP), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor, etc., which can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0175] The memory can be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electric Erasable Programmable Read-Only Memory (EEPROM), etc. Among them, the memory is used to store a computer program, and after receiving an execution instruction, the processor can execute the computer program accordingly.

[0176] This application also provides a computer-readable storage medium for storing the computer program used in the above tire pressure sensor. For example, the computer-readable storage medium can include, but is not limited to: various media such as USB flash drives, external hard drives, Read-Only Memory (ROM), Random Access Memory (RAM), magnetic disks, or optical discs that can store program codes.

[0177] In several embodiments provided by this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of this application. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code, and the module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in an alternative implementation, the functions marked in the blocks can occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0178] In addition, each functional module or unit in various embodiments of this application can be integrated together to form an independent part, or each module can exist separately, or two or more modules can be integrated to form an independent part.

[0179] When the above-described function is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be an intelligent display device, a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application.

[0180] As described above, the above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, and all should be covered by the protection scope of the present application.

Claims

1. A power consumption prompt method, characterized in that Including: Detect the power information of the battery pack in the tire pressure sensor under different states, and respectively obtain the maximum terminal voltage, the real-time voltage, and the cut-off voltage; Obtain the battery health state according to the maximum terminal voltage, the cut-off voltage, and the real-time voltage; Control the periodic detection mode of the tire pressure sensor according to the preset health state interval where the battery health state is located; Predict the remaining service days of the battery according to the periodic battery health state and the periodic ambient temperature parameters obtained in the periodic detection mode; Control the prompting method of the power information of the battery pack according to the preset time interval where the remaining service days of the battery are located.

2. The power consumption prompting method according to claim 1, wherein The obtaining the battery health state according to the maximum terminal voltage, the cut-off voltage, and the real-time voltage includes: Calculate the voltage attenuation amount of the battery pack according to the maximum terminal voltage and the real-time voltage; Calculate the effective voltage range according to the maximum terminal voltage and the cut-off voltage; After obtaining the battery attenuation ratio according to the voltage attenuation amount and the effective voltage range, convert the battery attenuation ratio into a percentage to obtain the battery health state; Among them, the calculation formula of the battery health state is: SOH = [1 - (A - B) / (A - C)] * 100%; In the formula, SOH is the battery health state, A is the maximum terminal voltage, B is the real-time voltage, and C is the cut-off voltage.

3. The power consumption prompting method according to claim 1, wherein The controlling the periodic detection mode of the tire pressure sensor according to the preset health state interval where the battery health state is located includes: If the battery health state is in the first health state interval, control the power detection module in the tire pressure sensor to detect the battery pack according to the first detection mode; If the battery health state is in the second health state interval, control the power detection module to detect the battery pack according to the second detection mode; If the battery health state is in the third health state interval, control the power detection module to detect the battery pack according to the third detection mode; Among them, the preset health state interval is divided into three adjacent intervals to obtain the first health state interval, the second health state interval, and the third health state interval; the detection periods are different among the first detection mode, the second detection mode, and the third detection mode.

4. The power consumption prompt method according to claim 1, wherein The predicting the remaining service days of the battery according to the periodic battery health state and the periodic ambient temperature parameters obtained in the periodic detection mode includes: After obtaining the battery health state and the ambient temperature parameters under at least one current period according to the periodic detection mode, obtain the periodic battery health state and the periodic ambient temperature parameters; Substitute the periodic battery health state and the periodic ambient temperature parameters into the battery life prediction model for prediction to obtain the remaining service days of the battery; Among them, the battery life prediction model includes: a lightweight random forest regression model.

5. The power consumption prompting method according to claim 1, wherein The controlling the prompting method of the power information of the battery pack according to the preset time interval where the remaining service days of the battery are located includes: If the remaining usage days of the battery are within the first time interval, control to display the power information in the first prompt manner; If the remaining usage days of the battery are within the second time interval, control to display the power information in the second prompt manner; If the remaining usage days of the battery are within the third time interval, control to display the power information in the third prompt manner; If the remaining usage days of the battery are within the fourth time interval, control to prompt the power information in the fourth prompt manner; Wherein, the first prompt manner is to display with a first-color icon on the target application of the display terminal; the second prompt manner is to display with a second-color icon on the target application; the third prompt manner is to display on the target application and the central control screen of the vehicle; the fourth prompt manner is for the speaker of the display terminal and the buzzer of the vehicle to give an alarm.

6. The power consumption prompting method according to claim 1, wherein The detection of the power information of the battery pack in the tire pressure sensor in different states to obtain the maximum terminal voltage, real-time voltage and cut-off voltage respectively includes: When the battery pack is in the maximum discharge state and the discharge cut-off state, respectively control the power detection module in the tire pressure sensor to detect the power of the battery pack, and correspondingly obtain the maximum terminal voltage and the cut-off voltage; When the battery pack is in the normal working state, control the power detection module to detect the power of the battery pack in real time to obtain the real-time voltage.

7. A power quantity prompt system, characterized in that, Includes: A tire pressure sensor and a central control unit; the central control unit is connected to the tire pressure sensor; The tire pressure sensor is used to detect the power information of the battery pack in the tire pressure sensor in different states, and respectively obtain the maximum terminal voltage, real-time voltage and cut-off voltage for the central control unit to obtain the battery health status; and according to the preset health status interval where the battery health status is located, control the periodic detection mode of the tire pressure sensor to obtain the periodic battery health status and periodic ambient temperature parameters of the battery pack in the periodic detection mode; The central control unit is used to call a battery life prediction model to predict the remaining usage days of the battery according to the periodic battery health status and the periodic ambient temperature parameters; and control the prompt manner of the power information of the battery pack according to the preset time interval where the remaining usage days of the battery are located.

8. The power consumption prompt system according to claim 7, wherein Also includes: A display terminal, a central control screen and a buzzer; the central control unit is respectively connected to the display terminal, the central control screen and the buzzer; The display terminal is used to display the power information in the first prompt manner, the second prompt manner and the third prompt manner correspondingly when the remaining usage days of the battery are within the first time interval, the second time interval and the third time interval; and prompt the power information in the fourth prompt manner when the remaining usage days of the battery are within the fourth time interval; The central control screen is used to display the power information in the third prompt manner when the remaining usage days of the battery are within the third time interval; The buzzer is used to prompt the power information in the fourth prompt manner when the remaining usage days of the battery are within the fourth time interval; Among them, the first prompting method is to display with a first-color icon on the target application of the display terminal; the second prompting method is to display with a second-color icon on the target application; the third prompting method is to display on the target application and the central control screen; the fourth prompting method is that the speaker and the buzzer of the display terminal give an alarm.

9. A terminal device, characterized in that, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, it implements the steps of the power quantity prompting method according to any one of claims 1-6.

10. A computer-readable storage medium, characterized in that, storing a computer program, and when the computer program is executed by the processor, it implements the steps of the power quantity prompting method according to any one of claims 1-6.

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