Tire state monitoring method and device, vehicle and related equipment thereof

Abstract

The invention relates to a tire state monitoring method and device, a vehicle and related equipment thereof. The method comprises the following steps: acquiring tire parameters of the vehicle; the tire state of the vehicle is monitored according to the tire parameters, and the tire state at least comprises the tire loosening state.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a tire condition monitoring method, device, vehicle and related equipment. Background Art

[0002] Since the tire is fixed to the axle by bolt connection, the bolts may become loose due to insufficient pre-tightening force of the bolt installation and vibration during long-term driving, which may cause the tire to loosen or fall off, resulting in traffic accidents and endangering personal and property safety.

[0003] In the related art, in order to avoid the above-mentioned traffic accidents, a tire loosening alarm device is installed on the tire of the vehicle to alarm when the tire of the vehicle is loose. However, this method will increase the production cost of the vehicle and the subsequent repair and maintenance cost. Summary of the invention

[0004] The embodiments of the present application provide a tire condition monitoring method, device, vehicle and related equipment to reduce the production cost and subsequent repair and maintenance cost of the vehicle, so as to at least partially solve the above-mentioned technical problems.

[0005] In a first aspect, an embodiment of the present application provides a tire status monitoring method, the method comprising:

[0006] Get the tire parameters of the vehicle;

[0007] The tire status of the vehicle is monitored according to the tire parameters, and the tire status at least includes a loose tire status.

[0008] In a second aspect, an embodiment of the present application provides a tire status monitoring device, the device comprising:

[0009] A first acquisition unit, used to acquire tire parameters of the vehicle;

[0010] The first determination unit is used to monitor the tire status of the vehicle according to the tire parameters, and the tire status at least includes a loose tire status.

[0011] In a third aspect, an embodiment of the present application provides a tire status monitoring device, the device comprising an electronic device;

[0012] The electronic device is configured to execute the steps of the tire condition monitoring method as described in the first aspect.

[0013] In a fourth aspect, an embodiment of the present application provides a vehicle, comprising a state sensor and a monitoring device, wherein the state sensor is configured to collect tire parameters of the vehicle and transmit the tire parameters to the monitoring device;

[0014] The monitoring device is configured to execute the steps of the tire condition monitoring method as described in the first aspect, or the monitoring device is the tire condition monitoring device as described in the third aspect.

[0015] In a fifth aspect, an embodiment of the present application provides a computer device, including a processor and a memory, wherein the memory stores a plurality of instructions; the processor loads instructions from the memory to execute the steps of the tire condition monitoring method described in the first aspect.

[0016] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a plurality of instructions, wherein the instructions are suitable for loading by a processor to execute the steps of the tire condition monitoring method described in the first aspect.

[0017] In a seventh aspect, an embodiment of the present application provides a computer program product, including a computer program, wherein the computer program is executed by a processor to perform the steps of the tire condition monitoring method described in the first aspect.

[0018] The present application monitors the tire status of the vehicle by using the tire parameters of the vehicle, wherein the tire status at least includes the looseness status of the tire. Thus, without adding new hardware equipment, the looseness status of the vehicle tire can be monitored, thereby reducing the production cost of the vehicle and the subsequent repair and maintenance cost.

[0019] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0021] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0022] Figure 1 is a schematic diagram of an application scenario of a tire condition monitoring method provided in some embodiments of the present application;

[0023] Figure 2 is a flowchart of a tire condition monitoring method provided in some embodiments of the present application;

[0024] Figure 3 is a schematic diagram of a loose tire alarm process provided in some embodiments of the present application;

[0025] Figure 4a and Figure 4b is a schematic diagram of a process for determining loose tire alarm data of a vehicle provided in some embodiments of the present application;

[0026] Figure 5 is a schematic structural diagram of a tire condition monitoring device provided in some embodiments of the present application;

[0027] Figure 6 It is a schematic diagram of the structure of a computer device provided in some embodiments of the present application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Since the tire is fixed to the axle by bolt connection, the bolts may become loose due to insufficient pre-tightening force of the bolts and shaking during long-term driving, which may cause the tire to loosen or fall off, resulting in traffic accidents and endangering personal and property safety. Although the probability of tire loosening is low, if it is not prevented, monitored and alarmed, the consequences of its damage are often serious.

[0031] In the related art, in order to avoid the above-mentioned traffic accidents, a tire loosening alarm device is installed on the tire of the vehicle to alarm when the tire of the vehicle is loose. However, this method will increase the production cost of the vehicle and the subsequent repair and maintenance cost.

[0032] In view of this, the embodiments of the present application provide a tire status monitoring method, device, vehicle and related equipment, which can monitor the looseness status of the vehicle's tires without adding new hardware equipment, thereby reducing the vehicle's production cost and subsequent repair and maintenance costs.

[0033] See also Figure 1 The embodiments of the present application can be applied to Figure 1The application scenario shown includes a terminal device 102 and a server 104. The terminal device 102 may be a device including both receiving and transmitting hardware, that is, a device having receiving and transmitting hardware capable of performing bidirectional communication on a bidirectional communication link. The terminal device 102 and the server 104 may perform bidirectional communication via a network.

[0034] Exemplarily, the terminal device 102 obtains tire parameters of the vehicle and obtains the tire status of the vehicle through processing. The terminal device 102 can monitor the tire status of the vehicle according to the tire parameters, and the tire status at least includes the tire loose status. Alternatively, the above steps can also be performed by the server 104, and the terminal device 102 is, for example, a vehicle-mounted terminal, and the terminal device 102 receives the tire loose probability threshold, the tire loose determination number threshold, etc. sent by the server 104.

[0035] The terminal device includes but is not limited to one or more of a mobile phone, a computer, an IoT device, a vehicle-mounted terminal, and a portable wearable device. The IoT device may be a smart vehicle-mounted device. The portable wearable device may be one or more of a smart watch, a smart bracelet, smart glasses, and a head-mounted device.

[0036] The server may be an independent server, or a server network, server cluster or distributed system consisting of multiple servers. The server includes but is not limited to a computer, a network host, a single network server, a set of multiple network servers or a cloud server consisting of multiple servers. The cloud server is composed of a large number of computers or network servers based on cloud computing.

[0037] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and this application does not make any specific limitation on this.

[0038] The following is a detailed description of the embodiments in conjunction with the accompanying drawings. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments. Although the logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in an order different from that shown in the accompanying drawings.

[0039] See also Figure 2 , provides a vehicle tire status monitoring method, which can be applied to a monitoring device. The following takes the method applied to an electronic control unit as an example for explanation, and the method can include steps 201 to 202:

[0040] 201. Obtain tire parameters of the vehicle.

[0041] 202. Monitor a tire status of the vehicle according to the tire parameters, where the tire status at least includes a loose tire status.

[0042] In step 201, the tire parameters may include tire speed and tire pressure. The tire parameters may be collected by a state sensor on the vehicle. For example, the tire speed may be collected by a wheel speed sensor, and the tire pressure may be collected by a tire pressure sensor. The tire parameters collected by the sensor are transmitted to the tire state monitoring device or the electronic device of the tire state monitoring device, so that the tire state monitoring device or the electronic device of the tire state monitoring device can obtain the tire parameters of the vehicle.

[0043] In step 202, loose tires are a condition that may occur during vehicle driving, mainly manifested as loose tire screws or wheel hub bolts. This condition poses a serious threat to driving safety, specifically manifested in vehicle deviation, tire detachment, reduced braking performance, and accelerated wear. Signs of loose tires include steering wheel shaking, abnormal tire noise, vehicle deviation, and abnormal tire pressure. In addition, loose tire screws may cause the tire to shake during driving, or even cause the vehicle to deviate.

[0044] In the embodiment of the present application, the tire status of the vehicle is monitored by using the tire parameters of the vehicle, wherein the tire status at least includes the looseness status of the tire. Thus, without adding new hardware equipment, the looseness status of the vehicle tires can be monitored, thereby reducing the production cost of the vehicle and the subsequent repair and maintenance cost.

[0045] In some embodiments, monitoring the tire status of the vehicle according to the tire parameters may include: determining tire characteristics of the vehicle according to the tire parameters; and determining the tire status of the vehicle according to the tire characteristics.

[0046] Specifically, determining the tire characteristics of the vehicle according to the tire parameters may include: performing characteristic spectrum analysis on the tire parameters to obtain the tire characteristics of the vehicle.

[0047] Wherein, the tire characteristics include tire observation characteristics.

[0048] In spectrum analysis, different frequency components and their corresponding amplitudes can be identified, thereby extracting the characteristic frequency of the vehicle speed. For example, by analyzing the spectrum characteristics of the vehicle body vibration, the main frequency distribution of the lateral and vertical acceleration of the vehicle body at different vehicle speeds can be found. In addition, Doppler spectrum analysis can also be used to estimate vehicle speed. This method assumes that the Doppler spectrum has Gaussian characteristics at the first half power and determines the highest correlation position as the average Doppler frequency through correlation analysis.

[0049] In addition, it can also be combined with other sensor data for comprehensive analysis. For example, by analyzing the vibration signal generated when a vehicle passes through a ground vibration strip, the vehicle's travel time can be calculated and the vehicle's speed can be further determined. In addition, the spectral features in the audio data can be used to estimate the change in vehicle speed, which does not require relying on sensors installed on the vehicle.

[0050] In some embodiments, determining the tire status of the vehicle based on the tire characteristics includes: determining a probability of a tire loosening of the vehicle based on the tire characteristics; and determining the tire status of the vehicle based on the tire loose probability.

[0051] In some embodiments, determining the probability of a tire loosening of the vehicle based on the tire characteristics may include: analyzing the tire characteristics using a pre-trained tire loosening probability analysis model, thereby outputting the probability of a tire loosening of the vehicle.

[0052] Exemplarily, the tire features are analyzed by a pre-trained tire loose probability analysis model, thereby outputting the vehicle's tire loose probability, and the following steps and methods may be referred to:

[0053] Data collection and preprocessing: Collect various characteristic data of tires, including but not limited to tire model, wear, pressure, temperature, slip rate, slip angle, load, etc. These data can be obtained in real time through sensors or extracted from historical records. Preprocess the collected data, including data cleaning, normalization, missing value filling, etc., to ensure data quality and consistency.

[0054] Feature Engineering: Extract key features based on the physical properties and dynamic behavior of the tire. For example, the longitudinal force, lateral force, friction coefficient, sliding stiffness, etc. of the tire. These features can be calculated through experimental data or theoretical models. Consider the performance of the tire under different working conditions, such as pure cornering, pure braking / driving, mixed working conditions, etc., and extract the corresponding features.

[0055] Model selection and training: Select appropriate machine learning models, such as random forest, support vector machine, neural network, etc., to predict the probability of tire loosening. The model selection should be based on the performance of historical data and prediction accuracy.

[0056] Use the collected data set to train the model and adjust the model parameters to optimize the prediction performance. Methods such as cross-validation can be used to evaluate the generalization ability of the model.

[0057] Model validation and optimization: Use an independent validation data set to validate the trained model and evaluate the model's prediction accuracy and stability. If the model performs poorly, consider adjusting the feature set, increasing the amount of data, or replacing the model. Optimize the model based on the validation results, such as adjusting the model structure, adding regularization terms, and improving feature selection.

[0058] Real-time prediction and feedback: Apply the trained model to the actual vehicle, collect tire characteristic data in real time and make predictions. The prediction results can be used to monitor the tire status and detect potential problems in time.

[0059] Based on the real-time prediction results, the system can provide warnings or suggestions to help the driver take corresponding measures, such as adjusting tire pressure, replacing severely worn tires, etc.

[0060] Continuous improvement: As vehicle mileage increases and tire conditions change, models and data sets are regularly updated to maintain prediction accuracy and reliability. Combined with new experimental data and theoretical research results, models and feature engineering methods are continuously optimized to improve the accuracy and practicality of tire loosening probability prediction.

[0061] In the embodiment of the present application, through the above steps, an effective tire looseness probability analysis model can be constructed to ensure driving safety.

[0062] In some embodiments, determining the tire status of the vehicle based on the tire loose probability includes: comparing the tire loose probability with a preset tire loose probability threshold to obtain a first comparison result; and determining the tire status of the vehicle based on the first comparison result.

[0063] The tire loosening probability threshold is preset. Specifically, the threshold can be obtained by accumulating test data of a preset number of actual vehicle tests and calibrating the test data using a calibration instrument CANape.

[0064] In an example, you can follow the steps below to get the tire loose probability threshold and create a new project: First, create a new project in CANape and name the XCP workspace. Select a suitable placement and configure the desktop crossover method as needed. Import A2L file: Import the A2L file related to tire loose detection and make sure its channel number matches the channel of the CANape box. If necessary, adjust the channel number to ensure correct connection.

[0065] Configure ELF file and parameter information: Add ELF file and configure related parameter information. This step is very important because the correct parameter configuration will directly affect the subsequent data acquisition and analysis. Set measurement and calibration parameters: Set measurement and calibration parameters in CANape, including selecting the appropriate measurement mode (such as polling, asynchronous data acquisition, etc.), and adjusting the communication speed (such as CAN, Private CAN, etc.) as needed.

[0066] Add observations and calibrations: Add observations and calibrations in the measurement window by searching for variables or dragging parameters into the measurement window. This step helps to monitor and adjust the calibrations in real time. Dynamically adjust the calibrations: During the calibration process, right-click to add calibrations, and dynamically adjust the calibrations according to the changes in the calibrations and observations until a suitable value is found. It is necessary to fully consider the working environment and dispersion of the components, and conduct a comprehensive analysis to ensure the accuracy of the calibration results.

[0067] Data acquisition and recording: Use CANape's data acquisition function and select the appropriate measurement mode for data acquisition. The graphical window will intuitively display the measurement results for easy observation and analysis. Offline evaluation and data mining: After completing data acquisition, use CANape's offline evaluation and data mining functions to analyze the recorded data, identify potential problems and optimize parameters. Generate a new hex file: After calibration, use CANape to integrate the calibrated variables and regenerate a new hex file to complete the final calibration purpose.

[0068] Therefore, through the above solution, a suitable tire looseness probability threshold can be obtained.

[0069] In some embodiments, determining the tire state of the vehicle based on the first comparison result includes: if the tire loose probability is greater than the tire loose probability threshold, determining that the tire state of the vehicle is a tire loose state; if the tire loose probability is less than or equal to the tire loose probability threshold, determining that the tire state of the vehicle is a tire non-loose state.

[0070] For example, the tire loose probability threshold is set to 0.52. When the tire loose probability is 0.58, that is, the tire loose probability 0.58 at this time is greater than the tire loose probability threshold 0.52, the tire state of the vehicle is determined to be a tire loose state. When the tire loose probability is 0.48, that is, the tire loose probability 0.58 at this time is less than the tire loose probability threshold 0.52, the tire state of the vehicle is determined to be a tire non-loose state.

[0071] In the embodiment of the present application, by comparing the tire loose probability with a preset tire loose probability threshold, the tire status of the vehicle can be quickly determined. The efficient judgment method provides a longer reaction time for the vehicle in motion, thereby improving the safety of the vehicle.

[0072] Loose tire alarm is very important for vehicles. Normally, when a vehicle receives a loose tire alarm during driving, it will take corresponding braking measures. However, due to the probability of misjudgment caused by occasional working conditions of the equipment, the false alarm caused by it will seriously affect the normal driving of the vehicle and reduce the user's trust. In view of this, Figure 3 As shown, in some embodiments, after determining the tire status of the vehicle, the method further includes steps 301 and 302:

[0073] 301. Determine a current looseness determination number of the tire according to the tire state.

[0074] In step 301, determining the current loose determination times of the tire according to the tire state may include: if the tire state is a loose tire state, updating the historical loose determination times of the tire to obtain the updated current loose determination times of the tire.

[0075] Exemplarily, the historical loose determination times is 2, and when the tire state is determined to be a loose tire state, the historical loose determination times are added by 1, that is, the current loose determination times of the tire after update is 2+1=3.

[0076] Among them, the number of historical loose judgments can be obtained in advance, which refers to the number of historical loose judgments within a certain condition range. The target condition range can be a preset period of time or a vehicle driving process (for example, a process from vehicle startup to shutdown).

[0077] The number of historical loose determinations can be reset according to actual needs. Specifically, it can include the following situations: resetting after the vehicle is powered on again, resetting upon receiving external reset information, resetting according to preset regulations, or resetting after completing a loose tire alarm process.

[0078] 302. If the current number of tire looseness determination times is greater than the preset tire looseness determination times threshold, a tire looseness alarm operation is performed.

[0079] The embodiment of the present application adopts a continuous counting method when making loose alarm judgments. Only when the number of continuous counts is greater than the set threshold, it will be determined to be loose. This is helpful in reducing the probability of false alarms caused by occasional working conditions (such as passing potholes or speed bumps).

[0080] In some embodiments, the vehicle includes at least one tire, and the tire status of the vehicle includes the tire status corresponding to each tire; the execution of the loose tire alarm operation includes: determining target tire information whose tire status in the vehicle is a loose tire status; determining the loose tire alarm data of the vehicle based on the target tire information, and using the loose tire alarm data to perform a loose tire alarm.

[0081] The tire loosening alarm data includes a tire loosening alarm signal corresponding to a specific tire position and a start-up alarm indicator light signal.

[0082] The embodiment of the present application determines the loose tire alarm data of the vehicle by combining the tire position information, and not only considers the single-wheel loose alarm strategy, but also considers the multi-wheel loose alarm strategy, thereby improving the comprehensiveness and accuracy of the loose tire alarm.

[0083] In some implementations, determining the target tire information of the vehicle whose tire state is a loose tire state, and determining the loose tire alarm data of the vehicle according to the target tire information may include: sequentially determining the tire state of each tire included in the vehicle to obtain the loose tire alarm data of the vehicle. The loose tire alarm data may include an alarm record.

[0084] The present application embodiment is illustrated by taking four tires as examples, such as 4a and Figure 4b As shown, 4a and Figure 4b These two figures are split for the purpose of showing the attached figure, which can be done in the following way:

[0085] First, determine whether the left front wheel loose alarm signal is loose. If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is not loose, then the alarm record is that the four wheels are not loose.

[0086] If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is loose, the alarm record is right rear wheel loose.

[0087] If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is not loose, the alarm record is left rear wheel loose.

[0088] If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is loose, the alarm record is that both wheels on the rear axle are loose.

[0089] If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is not loose, the alarm record is right front wheel loose.

[0090] If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is loose, the alarm record is that the two wheels on the right side are loose.

[0091] If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is not loose, the alarm record is that the right front wheel and the left rear wheel are loose.

[0092] If the left front wheel loose alarm signal is not loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is loose, the alarm record is that both the right front wheel and the rear axle are loose.

[0093] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is not loose, the alarm record is left front wheel loose.

[0094] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is loose, then the alarm record is that the left front wheel and the right rear wheel are loose.

[0095] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is not loose, the alarm record is that the two left wheels are loose.

[0096] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is not loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is loose, then the alarm record is that both the left front wheel and the rear axle are loose.

[0097] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is not loose, the alarm record is that both wheels on the front axle are loose.

[0098] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is not loose, and the right rear wheel loose alarm signal is loose, then the alarm record is that both the right rear wheel and the front axle are loose.

[0099] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is not loose, the alarm record is that both the left rear wheel and the front axle are loose.

[0100] If the left front wheel loose alarm signal is loose, the right front wheel loose alarm signal is loose, the left rear wheel loose alarm signal is loose, and the right rear wheel loose alarm signal is loose, the alarm record is four wheels loose.

[0101] In some embodiments, the method further includes: sending the tire loosening alarm data to a human-computer interaction terminal.

[0102] The human-computer interaction terminal and the tire status monitoring device can be connected via a CAN bus.

[0103] In the embodiment of the present application, the loose tire alarm data is sent to the human-computer interaction terminal so as to perform a loose tire alarm through the human-computer interaction terminal. The alarm method is more convenient and effective, and can effectively provide an alarm prompt to the user on the vehicle.

[0104] In some embodiments, the loose tire alarm data may be preprocessed before being sent to the human-computer interaction terminal, wherein the preprocessing method may be to convert the alarm data into a preset type of target alarm data, for example, the target alarm data may be indicator light information, voice alarm information, or other alarm information that can effectively serve as a prompt.

[0105] The embodiment of the present application improves the diversity of alarm modes by preprocessing the loose tire alarm data, and can help users obtain the loose tire alarm signal more quickly.

[0106] In some embodiments, the method further includes: obtaining data reset information sent by the human-computer interaction terminal; resetting the vehicle's alarm information based on the data reset information, the alarm information including at least one of the historical number of tire looseness determinations, tire status, and tire looseness alarm data.

[0107] In the embodiment of the present application, the actual situation of the vehicle can be effectively reset through data reset information, thereby reducing the probability of false alarms.

[0108] In a specific embodiment, first, it is determined whether the system enablement time count is greater than the system enablement time count critical value. If the system enablement time count is greater than the system enablement time count critical value, the system enablement time count is assigned the system enablement time count critical value plus 1, otherwise no operation is performed, and the subsequent process is continued.

[0109] Then, it is determined whether the system reset signal is reset. If the system reset signal is reset, the vehicle speed count is cleared, the alarm reset end is assigned as end, the alarm reset count is cleared, and the subsequent process is no longer executed.

[0110] If the system reset signal is not reset, then determine whether the alarm record is that the four wheels are not loose and whether the self-learning completion total flag is completed. If the two conditions are not met at the same time, the vehicle speed count is cleared and the alarm reset end is assigned as ended, and the subsequent process is no longer executed. If the two conditions are met at the same time, continue to determine whether the alarm reset end is not ended.

[0111] If the alarm reset end is ended, then determine whether the system enable time count is greater than the system enable time count critical value. If the system enable time count is not greater than the system enable time count critical value, the alarm reset end is assigned as not ended, and the subsequent process is not executed. If the system enable time count is greater than the system enable time count critical value, then continue to determine whether the vehicle speed is less than 0.01 and whether the vehicle speed validity is valid. If the vehicle speed is less than 0.01 and the vehicle speed validity is valid, add 1 to the vehicle speed count. If the two conditions are not met at the same time, the vehicle speed count is cleared. Then determine whether the vehicle speed count is greater than the maximum value of the alarm reset time count. If the vehicle speed count is greater than the maximum value of the alarm reset time count, the alarm reset end is assigned as not ended, the vehicle speed count is cleared, and the subsequent process continues; if the vehicle speed count is not greater than the maximum value of the alarm reset time count, no operation is performed, and the subsequent process continues.

[0112] If the alarm reset is not completed, the following process D is further executed. Since the judgment logic of the four wheels is the same, only the left front wheel is used as an example here. The judgment logic of the other three wheels can be obtained in the same way:

[0113] D: Determine whether the left front wheel loose alarm signal is loose. If the left front wheel loose alarm signal is loose, then determine whether the left front wheel probability calculation status is completed; if the left front wheel loose alarm signal is not loose, then reset the left front wheel alarm count to 1. If the left front wheel probability calculation status is completed, then determine whether the left front wheel loose probability is not greater than the tire loose probability threshold; if the left front wheel probability calculation status is not completed, no operation is performed and the subsequent process continues. If the left front wheel loose probability is not greater than the tire loose probability threshold, then add 1 to the left front wheel non-loose count; if the left front wheel loose probability is greater than the tire loose probability threshold, then clear the left front wheel non-loose count. Next, assign the left front wheel alarm reset count to 0. Then determine whether the left front wheel non-loose count is greater than the alarm reset judgment count threshold? If the left front wheel non-loose count is greater than the alarm reset judgment count threshold, the left front wheel alarm reset signal is assigned to reset, the left front wheel non-loose count is cleared, and the left front wheel alarm reset count is assigned to 1; if the left front wheel non-loose count is not greater than the alarm reset judgment count threshold, no operation is performed and the subsequent process is continued. The right front wheel, left rear wheel and right rear wheel respectively perform process D in turn.

[0114] When the four wheels have completed process D in sequence, the sum of the alarm reset counts of the four wheels is calculated (the sum of the alarm reset counts of the four wheels is equal to the sum of the alarm reset counts of the left front / right front / left rear / right rear wheels). Then, it is determined whether the sum of the alarm reset counts of the four wheels is equal to 4. If the sum of the alarm reset counts of the four wheels is equal to 4, the alarm reset end is assigned as end; if the sum of the alarm reset counts of the four wheels is not equal to 4, no operation is performed and the subsequent process continues.

[0115] Based on the same inventive concept, the embodiment of the present application also provides a tire state monitoring device for implementing the tire state monitoring method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation method recorded in the above method, so the specific limitations in one or more tire state monitoring device embodiments provided below can refer to the limitations of the tire state monitoring method above, and will not be repeated here.

[0116] See also Figure 5 , a tire state monitoring device is provided, which can be integrated in a computer device, including a first acquisition unit 501 and a first determination unit 502, wherein:

[0117] A first acquisition unit 501 is used to acquire tire parameters of the vehicle;

[0118] The first determining unit 502 is configured to monitor a tire state of the vehicle according to the tire parameters, where the tire state at least includes a loose tire state.

[0119] In an embodiment of the present application, the tire parameters of the vehicle are used to monitor the tire status of the vehicle, wherein the tire status at least includes a loose state of the tire. Thus, without adding new hardware equipment, the loose state of the vehicle tires can be monitored, thereby reducing the production cost of the vehicle and the subsequent repair and maintenance cost.

[0120] In some embodiments, the tire parameter includes tire rotational speed.

[0121] In some embodiments, the tire condition monitoring device is further used to:

[0122] Determining tire characteristics of the vehicle according to the tire parameters;

[0123] A tire condition of the vehicle is determined based on the tire characteristics.

[0124] In some embodiments, the tire condition monitoring device is further used to:

[0125] Determining a loose tire probability of the vehicle according to the tire characteristics;

[0126] A tire state of the vehicle is determined according to the tire loosening probability.

[0127] In some embodiments, the tire condition monitoring device is further used to:

[0128] Comparing the tire loose probability with a preset tire loose probability threshold to obtain a first comparison result;

[0129] A tire condition of the vehicle is determined based on the first comparison result.

[0130] In some embodiments, the tire condition monitoring device is further used to:

[0131] If the tire loose probability is greater than the tire loose probability threshold, it is determined that the tire state of the vehicle is a tire loose state.

[0132] In some embodiments, the tire condition monitoring device is further used to:

[0133] Determining the current looseness determination number of the tire according to the tire state;

[0134] If the current looseness determination times is greater than the preset tire looseness determination times threshold, a tire looseness alarm operation is performed.

[0135] Loose tire warning data of the vehicle is determined.

[0136] In some embodiments, the vehicle includes at least one tire, and the tire status of the vehicle includes a tire status corresponding to each tire;

[0137] The tire condition monitoring device is also used for:

[0138] Determine target tire information of a tire state of the vehicle as a loose tire state;

[0139] The loose tire alarm data of the vehicle is determined according to the target tire information, and the loose tire alarm data is used to perform a loose tire alarm.

[0140] In some embodiments, the tire condition monitoring device is further used to:

[0141] The tire loosening alarm data is sent to a human-computer interaction terminal.

[0142] In some embodiments, the tire condition monitoring device is further used to:

[0143] If the tire state is a loose tire state, the historical looseness determination times of the tire are updated to obtain the current looseness determination times of the tire after the update.

[0144] In some embodiments, the tire condition monitoring device is further used to:

[0145] Obtain data reset information sent by the human-computer interaction terminal;

[0146] Based on the data reset information, the alarm information of the vehicle is reset, and the alarm information includes at least one of the historical number of tire looseness determinations, tire status, and tire looseness alarm data.

[0147] Each module in the above-mentioned devices can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of the processor in the control device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each module above.

[0148] Correspondingly, an embodiment of the present application further provides a tire condition monitoring device, which includes an electronic device; the electronic device is configured to execute the steps of the tire condition monitoring method.

[0149] Correspondingly, an embodiment of the present application also provides a vehicle, which includes a state sensor and a tire state monitoring device, wherein the state sensor is configured to collect tire parameters of the vehicle and transmit the tire parameters to the tire state monitoring device; the tire state monitoring device is configured to execute the tire state monitoring method described above.

[0150] In some embodiments, the vehicle further includes a human-computer interaction terminal, and the human-computer interaction terminal is configured to perform data exchange with the monitoring device.

[0151] Among them, the CAN bus can be used for data transmission between the human-computer interaction terminal and the monitoring device.

[0152] In some embodiments, the vehicle also includes a battery that can provide power to the monitoring device.

[0153] Correspondingly, an embodiment of the present application also provides a computer device, which may be a vehicle-mounted device.

[0154] like Figure 6 As shown, Figure 6 A schematic diagram of the structure of a computer device provided in an embodiment of the present application. The computer device 1200 includes a processor 1201 having one or more processing cores, a memory 1202 having one or more computer-readable storage media, and a computer program stored in the memory 1202 and executable on the processor. The processor 1201 is electrically connected to the memory 1202. It will be understood by those skilled in the art that the computer device structure shown in the figure does not constitute a limitation on the computer device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0155] The processor 1201 is the control center of the computer device 1200, and uses various interfaces and lines to connect various parts of the entire computer device 1200. By running or loading software programs and / or units stored in the memory 1202, and calling data stored in the memory 1202, the processor 1201 executes various functions of the computer device 1200 and processes data, thereby monitoring the computer device 1200 as a whole. The processor 1201 can be a central processing unit CPU, a graphics processing unit GPU, a network processor (Network Processor, NP), etc., and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application.

[0156] In the embodiment of the present application, the processor 1201 in the computer device 1200 will load the instructions corresponding to the processes of one or more application programs into the memory 1202 according to the following steps, and the processor 1201 will run the application programs stored in the memory 1202, so as to realize various functions, such as: obtaining tire parameters of the vehicle; monitoring the tire status of the vehicle according to the tire parameters, and the tire status at least includes the loose status of the tire. The specific implementation of each of the above operations can be referred to the previous embodiment, and will not be repeated here.

[0157] Alternatively, if Figure 6As shown, the computer device 1200 further includes: a touch screen 1203, a radio frequency circuit 1204, an audio circuit 1205, an input unit 1206, and a power supply 1207. The processor 1201 is electrically connected to the touch screen 1203, the radio frequency circuit 1204, the audio circuit 1205, the input unit 1206, and the power supply 1207, respectively. Those skilled in the art can understand that Figure 6 The computer device structure shown in the figure does not constitute a limitation on the computer device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0158] The touch display screen 1203 can be used to display a graphical user interface and receive operation instructions generated by the user acting on the graphical user interface. The touch display screen 1203 may include a display panel and a touch panel. Among them, the display panel may be used to display information input by the user or information provided to the user and various graphical user interfaces of the computer device, which may be composed of graphics, text, icons, videos and any combination thereof. Optionally, the display panel may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED) and the like. The touch panel may be used to collect the user's touch operation on or near it (such as the user using any suitable object or attachment such as a finger, a stylus or the like on the touch panel or near the touch panel), and generate corresponding operation instructions, and the operation instructions execute corresponding programs. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 1201, and can receive the command sent by the processor 1201 and execute it. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it is transmitted to the processor 1201 to determine the type of touch event, and then the processor 1201 provides corresponding visual output on the display panel according to the type of touch event. In an embodiment of the present application, the touch panel and the display panel can be integrated into the touch display screen 1203 to realize the input and output functions. However, in some embodiments, the touch panel and the touch panel can be used as two independent components to realize the input and output functions. That is, the touch display screen 1203 can also be used as a part of the input unit 1206 to realize the input function.

[0159] The radio frequency circuit 1204 may be used to send and receive radio frequency signals, so as to establish wireless communication with a network device or other computer device through wireless communication, and to send and receive signals between the network device or other computer device.

[0160] The audio circuit 1205 can be used to provide an audio interface between the user and the computer device through a speaker and a microphone. The audio circuit 1205 can transmit the electrical signal converted from the received audio data to the speaker, which is converted into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 1205 and converted into audio data, and then the audio data is output to the processor 1201 for processing, and then sent to another computer device through the radio frequency circuit 1204, or the audio data is output to the memory 1202 for further processing. The audio circuit 1205 may also include an earphone jack to provide communication between an external headset and the computer device.

[0161] The input unit 1206 may be used to receive input numbers, character information or user feature information (such as fingerprint, iris, facial information, etc.), and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0162] The power supply 1207 is used to supply power to various components of the computer device 1200. Optionally, the power supply 1207 can be logically connected to the processor 1201 through a power management system, so that the power management system can manage charging, discharging, and power consumption. The power supply 1207 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0163] although Figure 6 Not shown, the computer device 1200 may also include a camera, a sensor, a wireless fidelity module, a Bluetooth module, etc., which will not be described in detail here.

[0164] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0165] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0166] To this end, an embodiment of the present application provides a computer-readable storage medium, in which a plurality of computer programs are stored, and the computer program can be loaded by a processor to execute any parking space detection method provided in the embodiment of the present application. The computer program can execute the following steps of the parking space detection method: obtaining tire parameters of the vehicle; monitoring the tire status of the vehicle according to the tire parameters, and the tire status at least includes a loose tire state. The specific implementation of each of the above operations can be referred to the previous embodiments, and will not be repeated here.

[0167] The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0168] Since the computer program stored in the computer-readable storage medium can execute any tire condition monitoring method provided in the embodiments of the present application, the beneficial effects that can be achieved by any tire condition monitoring method provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0169] According to one aspect of the present application, a computer program product or a computer program is also provided, the computer program product or the computer program includes a computer instruction, and the computer instruction is stored in a computer-readable storage medium. The processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the method provided in various optional implementations in the above embodiments.

[0170] In the above tire condition monitoring device, vehicle, computer-readable storage medium, computer equipment and computer program product embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process and beneficial effects of the tire condition monitoring method, device, vehicle, computer-readable storage medium, computer equipment and computer program product described above can refer to the description of the tire condition monitoring method in the above embodiment, and will not be repeated here.

[0171] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0172] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. Although the descriptions of various embodiments in the embodiments of the present application have different focuses, for parts not described in detail in a certain embodiment, reference can be made to the relevant embodiments of other embodiments. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A tire condition monitoring method, characterized in that: include: Get the tire parameters of the vehicle; The tire status of the vehicle is monitored according to the tire parameters, and the tire status at least includes a loose tire status.

2. The tire condition monitoring method according to claim 1, characterized in that: The tire parameters include tire rotation speed.

3. The tire condition monitoring method according to claim 1 or 2, characterized in that: The step of monitoring the tire status of the vehicle according to the tire parameters comprises: Determining tire characteristics of the vehicle according to the tire parameters; A tire condition of the vehicle is determined based on the tire characteristics.

4. The tire condition monitoring method according to claim 3, characterized in that: Determining the tire status of the vehicle according to the tire characteristics includes: Determining a loose tire probability of the vehicle according to the tire characteristics; A tire state of the vehicle is determined according to the tire loosening probability.

5. The tire condition monitoring method according to claim 4, characterized in that: The step of determining the tire state of the vehicle according to the tire loosening probability includes: Comparing the tire loose probability with a preset tire loose probability threshold to obtain a first comparison result; A tire condition of the vehicle is determined based on the first comparison result.

6. The tire condition monitoring method according to claim 5, characterized in that: Determining the tire status of the vehicle according to the first comparison result includes: If the tire loose probability is greater than the tire loose probability threshold, it is determined that the tire state of the vehicle is a tire loose state.

7. The tire condition monitoring method according to claim 5, characterized in that: After determining the tire status of the vehicle, the method further includes: Determining the current looseness determination number of the tire according to the tire state; If the current number of tire looseness determinations is greater than the preset tire looseness determination number threshold, executing a tire looseness alarm operation; Loose tire warning data of the vehicle is determined.

8. The tire condition monitoring method according to claim 7, characterized in that: The vehicle comprises at least one tire, and the tire status of the vehicle comprises a tire status corresponding to each tire; The performing of the tire loosening alarm operation includes: Determine target tire information of a tire state in the vehicle as a loose tire state; The loose tire alarm data of the vehicle is determined according to the target tire information, and the loose tire alarm data is used to perform a loose tire alarm.

9. The tire condition monitoring method according to claim 8, characterized in that: The method further comprises: The tire loosening alarm data is sent to a human-computer interaction terminal.

10. The tire condition monitoring method according to claim 7, characterized in that: The step of determining the current looseness determination number of the tire according to the tire state includes: If the tire state is a loose tire state, the historical looseness determination times of the tire are updated to obtain the current looseness determination times of the tire after the update.

11. The tire condition monitoring method according to any one of claims 1-2 or 4-10, characterized in that: The method further comprises: Obtain data reset information sent by the human-computer interaction terminal; Based on the data reset information, the alarm information of the vehicle is reset, and the alarm information includes at least one of the historical number of tire looseness determinations, tire status, and tire looseness alarm data.

12. A tire condition monitoring device, characterized in that: The device comprises: A first acquisition unit, used to acquire tire parameters of the vehicle; The first determination unit is used to monitor the tire status of the vehicle according to the tire parameters, and the tire status at least includes a loose tire status.

13. A tire condition monitoring device, characterized in that: The device includes an electronic device; The electronic device is configured to execute the steps of the tire condition monitoring method according to any one of claims 1-11.

14. A vehicle, characterized in that: It includes a state sensor and a tire state monitoring device, wherein the state sensor is configured to collect tire parameters of the vehicle and transmit the tire parameters to the tire state monitoring device; The tire condition monitoring device is configured to execute the steps of the tire condition monitoring method according to any one of claims 1 to 11, or the monitoring device is the tire condition monitoring device according to claim 13.

15. The vehicle according to claim 14, characterized in that The vehicle further comprises a human-machine interaction terminal, and the human-machine interaction terminal is configured to perform data interaction with the monitoring device.

16. A computer device, characterized in that: It comprises a processor and a memory, wherein the memory stores a plurality of instructions; the processor loads instructions from the memory to execute the steps of the tire condition monitoring method according to any one of claims 1 to 11.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the steps of the tire condition monitoring method according to any one of claims 1 to 11.

18. A computer program product, characterized in that The method comprises a computer program, wherein the computer program is used by a processor to execute the steps of the tire condition monitoring method according to any one of claims 1 to 11.

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