Tire abnormal wear alarm method and storage medium

Abstract

The invention relates to a tire abnormal wear alarm method and a storage medium, and the method comprises the following steps: when a vehicle starting signal is input, collecting a four-wheel speed signal according to a preset condition; when the time for accumulatively collecting the four-wheel speed signals reaches preset time, whether the difference of the four-wheel speed exceeds a preset difference value or not is judged according to the four-wheel speed signals; and if so, sending out a tire abnormal wear alarm. The four-wheel speed signals are collected only when the preset condition is met, various influence factors are eliminated, the influence on the difference of the four-wheel speed is avoided, and the alarm accuracy is improved.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method and storage medium for abnormal tire wear alarm. Background Art

[0002] Due to the four-wheel alignment, driving habits, power layout and other reasons, the degree of wear on the four-wheel tires of a vehicle is often inconsistent, which affects the service life of the tires and also affects the grip stability of the vehicle's four wheels.

[0003] However, the tire wear alarm on the market simply compares the difference in wheel speeds of the four wheels, lacks the elimination of various influencing factors, has low system accuracy, or requires the use of additional sensors for measurement. There is a lack of an alarm system that can accurately identify abnormal tire wear that ordinary users can use, prompting car owners to adjust vehicle parameters or rotate wheels, thereby increasing tire service life and maintaining uniform grip performance of the four wheels. Summary of the invention

[0004] In view of the above problems, the present application provides a method and storage medium for abnormal tire wear alarm, which simply compares the difference in four-wheel speeds for existing tire wear alarms and lacks the elimination of various influencing factors, resulting in low alarm accuracy.

[0005] To achieve the above object, the inventor provides a method for abnormal tire wear alarm, comprising the following steps:

[0006] When the vehicle start signal is input, the four-wheel speed signals are collected according to the preset conditions;

[0007] When the accumulated time of collecting the four-wheel speed signals reaches the preset time, judging whether the difference of the four-wheel speeds exceeds the preset difference value according to the four-wheel speed signals;

[0008] If it exceeds the limit, an abnormal tire wear alarm will be issued.

[0009] In some embodiments, collecting four-wheel speed signals according to preset conditions specifically includes the following steps:

[0010] Determine whether only the main driver is occupied;

[0011] If not, stop collecting the four-wheel speed signals;

[0012] If yes, determine whether the difference in tire pressures of the four tires is less than the preset tire pressure value;

[0013] If not, stop collecting the four-wheel speed signals;

[0014] If yes, determine whether the steering wheel angle is within a preset steering wheel angle range;

[0015] If not, stop collecting the four-wheel speed signals;

[0016] If yes, determine whether the longitudinal acceleration is within the preset angular velocity range;

[0017] If not, stop collecting the four-wheel speed signals;

[0018] If yes, then determine whether the vehicle speed is within the preset speed range;

[0019] If not, stop collecting the four-wheel speed signals;

[0020] If yes, then collect the four-wheel speed signals.

[0021] In some embodiments, the following steps are also included:

[0022] When the number of times or duration of abnormal tire wear alarms reaches a threshold and no feedback is received from the user, the abnormal tire wear alarms will stop being issued.

[0023] In some embodiments, the following steps are also included:

[0024] When receiving the user's viewing operation, the improvement or deterioration of the wheel speed difference data is generated and displayed.

[0025] In some embodiments, the following steps are also included:

[0026] When the wheel speed difference data improves or deteriorates, it is displayed as a wheel speed difference curve.

[0027] Another technical solution is provided, a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are performed:

[0028] When the vehicle start signal is input, the four-wheel speed signals are collected according to the preset conditions;

[0029] When the accumulated time of collecting the four-wheel speed signals reaches the preset time, judging whether the difference of the four-wheel speeds exceeds the preset difference value according to the four-wheel speed signals;

[0030] If it exceeds the limit, an abnormal tire wear alarm will be issued.

[0031] In some embodiments, collecting four-wheel speed signals according to preset conditions specifically includes the following steps:

[0032] Determine whether only the main driver is occupied;

[0033] If not, stop collecting the four-wheel speed signals;

[0034] If yes, determine whether the difference in tire pressures of the four tires is less than the preset tire pressure value;

[0035] If not, stop collecting the four-wheel speed signals;

[0036] If yes, determine whether the steering wheel angle is within a preset steering wheel angle range;

[0037] If not, stop collecting the four-wheel speed signals;

[0038] If yes, determine whether the longitudinal acceleration is within the preset angular velocity range;

[0039] If not, stop collecting the four-wheel speed signals;

[0040] If yes, then determine whether the vehicle speed is within the preset speed range;

[0041] If not, stop collecting the four-wheel speed signals;

[0042] If yes, then collect the four-wheel speed signals.

[0043] In some embodiments, the following steps are also included:

[0044] When the number of times or duration of abnormal tire wear alarms reaches a threshold and no feedback is received from the user, the abnormal tire wear alarms will stop being issued.

[0045] In some embodiments, when the computer program is executed by a processor, the following steps are further performed:

[0046] When receiving the user's viewing operation, the improvement or deterioration of the wheel speed difference data is generated and displayed.

[0047] In some embodiments, when the computer program is executed by a processor, the following steps are further performed:

[0048] When the wheel speed difference data improves or deteriorates, it is displayed as a wheel speed difference curve.

[0049] Different from the prior art, the above technical solution, when the vehicle start signal is input, determines whether to collect the four-wheel speed signal according to the preset conditions, and collects the four-wheel speed signal only when the preset conditions are met, and when the cumulative time of collecting the four-wheel speed signal reaches the preset time, determines whether the difference of the four-wheel speed exceeds the preset difference value according to the collected four-wheel speed signal, and when it exceeds, issues an abnormal tire wear alarm. By collecting the four-wheel speed signal only when the preset conditions are met, various influencing factors are eliminated, avoiding the impact on the difference of the four-wheel speed, and improving the alarm accuracy.

[0050] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0052] In the drawings of the specification:

[0053] Figure 1 A schematic diagram of a flow chart of the abnormal tire wear alarm method described in the specific implementation method;

[0054] Figure 2 A schematic diagram of a process for collecting four-wheel speed signals according to preset conditions as described in a specific implementation method;

[0055] Figure 3 Another schematic flow chart of the abnormal tire wear alarm method according to the specific implementation method;

[0056] Figure 4 Another schematic flow chart of the abnormal tire wear alarm method according to the specific implementation method;

[0057] Figure 5 A schematic diagram of the structure of the storage medium described in the specific implementation method.

[0058] The reference numerals in the above drawings are described as follows:

[0059] 510. Storage medium,

[0060] 520. Processor. DETAILED DESCRIPTION

[0061] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0062] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0063] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0064] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0065] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0066] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0067] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0068] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0069] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0070] See also Figure 1 This embodiment provides a method for abnormal tire wear alarm, comprising the following steps:

[0071] When the vehicle start signal is input, the four-wheel speed signals are collected according to the preset conditions;

[0072] After judging whether the accumulated time of collecting the wheel speed signals of the four wheels reaches the preset time;

[0073] If not, continue to collect the four-wheel speed signals;

[0074] If yes, judging whether the difference of the four-wheel speeds exceeds a preset difference value according to the four-wheel speed signals;

[0075] If it exceeds the limit, an abnormal tire wear alarm will be issued.

[0076] When the vehicle's start signal is input, it is determined whether to collect the four-wheel speed signals according to the preset conditions. The four-wheel speed signals are collected only when the preset conditions are met. When the cumulative time of collecting the four-wheel speed signals reaches the preset time, it is determined whether the difference of the four-wheel speeds exceeds the preset difference value according to the collected four-wheel speed signals. If it exceeds, an abnormal tire wear alarm is issued. By collecting the four-wheel speed signals only when the preset conditions are met, various influencing factors are eliminated to avoid affecting the difference of the four-wheel speeds and improve the accuracy of the alarm. Among them, in order to improve the accuracy of the system, it is set to collect the wheel speed signals for a certain period of time after the vehicle is started, and then make an alarm judgment, such as 30 minutes.

[0077] See also Figure 2-3 In some embodiments, collecting four-wheel speed signals according to preset conditions specifically includes the following steps:

[0078] Step S210: Determine whether there is only one person in the main vehicle;

[0079] If not, then execute step S270: stop collecting the four-wheel speed signals;

[0080] If yes, then execute step S220: determine whether the difference in tire pressures of the four tires is less than a preset tire pressure value;

[0081] If not, then execute step S270: stop collecting the four-wheel speed signals;

[0082] If yes, then execute step S230: determine whether the steering wheel angle is within a preset steering wheel angle range;

[0083] If not, then execute step S270: stop collecting the four-wheel speed signals;

[0084] If yes, then execute step S240: determine whether the longitudinal acceleration is within a preset angular velocity range;

[0085] If not, then execute step S270: stop collecting the four-wheel speed signals;

[0086] If yes, then execute step S250: determine whether the vehicle speed is within a preset vehicle speed range;

[0087] If not, then execute step S270: stop collecting the four-wheel speed signals;

[0088] If yes, then execute step S260: collect four-wheel speed signals.

[0089] Data collection is performed while excluding factors other than wheel diameter that may cause wheel speed differences, otherwise the data is invalid, as follows:

[0090] Collect seat pressure sensor signals and collect data only when there is someone in the driver's seat to reduce the impact of load.

[0091] Collect the tire pressure signals of the four tires, and set the data collection when the difference of the four tire pressures is less than the set value, such as 10kpa, to reduce the impact of tire pressure.

[0092] Collect the steering wheel angle signal and set the data collection to be performed when the steering wheel angle is less than the set value, such as 0.5°, to reduce the steering wheel speed difference.

[0093] Collect longitudinal acceleration signals and set the acceleration to a set value range for data collection, such as ±0.05g, to reduce the effects of acceleration and deceleration.

[0094] Collect vehicle speed signals and set the vehicle speed to collect data within a set range, such as 20-60km / h, to reduce the impact of wheel speed differences caused by wheel bouncing due to excessive vehicle speed.

[0095] The factors that affect the four-wheel speed, such as vehicle load, wheel air pressure, vehicle steering, and vehicle acceleration and deceleration, are eliminated, and requirements are set for the alarm judgment time, thereby improving the accuracy of the system.

[0096] In some embodiments, the following steps are also included:

[0097] Collecting and storing the initial four-wheel speed signals of the vehicle;

[0098] When the four-wheel speed signal is compared with the initial four-wheel speed signal to determine whether the difference in the four-wheel speed exceeds the preset difference value,

[0099] In order to improve accuracy, initial data collection is performed when the four wheels are in the state of new tires, such as when the vehicle is driven for the first time, or after receiving the initial settings clicked by the user. By comparing the initial four-wheel speed signals collected under the preset conditions with the four-wheel speed signals collected during daily use in the future, the impact of the initial wheel speed difference between the front and rear wheels is reduced. After excluding factors that affect the four-wheel speed such as vehicle load, wheel pressure, vehicle steering, and vehicle acceleration and deceleration, and making requirements for the alarm judgment time, the initial data collection is increased to improve the accuracy of the system.

[0100] See also Figure 4 , in some embodiments, further comprising the following steps:

[0101] Step S410: When the number of times or the duration of issuing the abnormal tire wear alarm reaches a threshold and no feedback operation is received from the user, the abnormal tire wear alarm is stopped.

[0102] To avoid frequent alarms due to some users not performing any collection operations, when the number of alarms reaches a certain number or the alarm duration reaches a certain length, the disturbing alarms will no longer appear.

[0103] In some embodiments, the following steps are also included:

[0104] When receiving the user's viewing operation, the improvement or deterioration of the wheel speed difference data is generated and displayed.

[0105] The user can view the wheel speed difference data to judge the improvement or deterioration, so that the user can see whether the current wear of the four wheels has improved or deteriorated. Specifically, when the user's viewing operation is received, the improvement of the wheel speed difference data is generated according to the collected four-wheel speed signals and displayed, which can be displayed on the display screen of the entertainment system.

[0106] In some embodiments, the following steps are also included:

[0107] When the wheel speed difference data improves or deteriorates, it is displayed as a wheel speed difference curve.

[0108] The user can more intuitively know the improvement or deterioration of the wheel speed difference through the displayed wheel speed difference curve.

[0109] After the vehicle has traveled a certain distance, the front and rear wheels have different rolling circles due to the difference in radius. For example, when the normal wheel wear radius is 335mm and the abnormal wear radius is 333mm, the wheel speed difference can be known as (335-333) / 335≈0.6% through the four-wheel speed signal. The four-wheel speed difference can be displayed in real time, and a wheel speed difference curve can be formed. If the detection exceeds the alarm value such as 0.6%, it is judged as abnormal wear. Whether it is a single wheel problem prompts abnormal wear or whether there are problems with the coaxial tires, it prompts wheel replacement.

[0110] See also Figure 5 In another embodiment, a storage medium 510 stores a computer program, and the computer program is executed by a processor 520 to perform the following steps:

[0111] When the vehicle start signal is input, the four-wheel speed signals are collected according to the preset conditions;

[0112] When the accumulated time of collecting the four-wheel speed signals reaches the preset time, judging whether the difference of the four-wheel speeds exceeds the preset difference value according to the four-wheel speed signals;

[0113] If it exceeds the limit, an abnormal tire wear alarm will be issued.

[0114] When the vehicle's start signal is input, it is determined whether to collect the four-wheel speed signals according to the preset conditions. The four-wheel speed signals are collected only when the preset conditions are met. When the cumulative time of collecting the four-wheel speed signals reaches the preset time, it is determined whether the difference of the four-wheel speeds exceeds the preset difference value according to the collected four-wheel speed signals. If it exceeds, an abnormal tire wear alarm is issued. By collecting the four-wheel speed signals only when the preset conditions are met, various influencing factors are eliminated to avoid affecting the difference of the four-wheel speeds and improve the accuracy of the alarm. Among them, in order to improve the accuracy of the system, it is set to collect the wheel speed signals for a certain period of time after the vehicle is started, and then make an alarm judgment, such as 30 minutes.

[0115] In some embodiments, collecting four-wheel speed signals according to preset conditions specifically includes the following steps:

[0116] Determine whether only the main driver is occupied;

[0117] If not, stop collecting the four-wheel speed signals;

[0118] If yes, determine whether the difference in tire pressures of the four tires is less than the preset tire pressure value;

[0119] If not, stop collecting the four-wheel speed signals;

[0120] If yes, determine whether the steering wheel angle is within a preset steering wheel angle range;

[0121] If not, stop collecting the four-wheel speed signals;

[0122] If yes, determine whether the longitudinal acceleration is within the preset angular velocity range;

[0123] If not, stop collecting the four-wheel speed signals;

[0124] If yes, then determine whether the vehicle speed is within the preset speed range;

[0125] If not, stop collecting the four-wheel speed signals;

[0126] If yes, then collect the four-wheel speed signals.

[0127] Data collection is performed while excluding factors other than wheel diameter that may cause wheel speed differences, otherwise the data is invalid, as follows:

[0128] Collect seat pressure sensor signals and collect data only when there is someone in the driver's seat to reduce the impact of load.

[0129] Collect the tire pressure signals of the four tires, and set the data collection when the difference of the four tire pressures is less than the set value, such as 10kpa, to reduce the impact of tire pressure.

[0130] Collect the steering wheel angle signal and set the data collection to be performed when the steering wheel angle is less than the set value, such as 0.5°, to reduce the steering wheel speed difference.

[0131] Collect longitudinal acceleration signals and set the acceleration to a set value range for data collection, such as ±0.05g, to reduce the effects of acceleration and deceleration.

[0132] Collect vehicle speed signals and set the vehicle speed to collect data within a set range, such as 20-60km / h, to reduce the impact of wheel speed differences caused by wheel bouncing due to excessive vehicle speed.

[0133] The factors that affect the four-wheel speed, such as vehicle load, wheel air pressure, vehicle steering, and vehicle acceleration and deceleration, are eliminated, and requirements are set for the alarm judgment time, thereby improving the accuracy of the system.

[0134] In some embodiments, when the computer program is executed by the processor 520, the following steps are further performed:

[0135] Collecting and storing the initial four-wheel speed signals of the vehicle;

[0136] When the four-wheel speed signal is compared with the initial four-wheel speed signal to determine whether the difference in the four-wheel speed exceeds the preset difference value,

[0137] In order to improve accuracy, initial data collection is performed when the four wheels are in the state of new tires, such as when the vehicle is driven for the first time, or after receiving the initial settings clicked by the user. By comparing the initial four-wheel speed signals collected under the preset conditions with the four-wheel speed signals collected during daily use in the future, the impact of the initial wheel speed difference between the front and rear wheels is reduced. After excluding factors that affect the four-wheel speed such as vehicle load, wheel pressure, vehicle steering, and vehicle acceleration and deceleration, and making requirements for the alarm judgment time, the initial data collection is increased to improve the accuracy of the system.

[0138] In some embodiments, when the computer program is executed by the processor 520, the following steps are further performed:

[0139] When the number of times or duration of abnormal tire wear alarms reaches a threshold and no feedback is received from the user, the abnormal tire wear alarms will stop being issued.

[0140] To avoid frequent alarms due to some users not performing any collection operations, when the number of alarms reaches a certain number or the alarm duration reaches a certain length, the disturbing alarms will no longer appear.

[0141] In some embodiments, when the computer program is executed by the processor 520, the following steps are further performed:

[0142] When receiving the user's viewing operation, the improvement or deterioration of the wheel speed difference data is generated and displayed.

[0143] The user can view the wheel speed difference data to judge the improvement or deterioration, so that the user can see whether the current wear of the four wheels has improved or deteriorated. Specifically, when the user's viewing operation is received, the improvement of the wheel speed difference data is generated according to the collected four-wheel speed signals and displayed, which can be displayed on the display screen of the entertainment system.

[0144] In some embodiments, when the computer program is executed by the processor 520, the following steps are further performed:

[0145] When the wheel speed difference data improves or deteriorates, it is displayed as a wheel speed difference curve.

[0146] The user can more intuitively know the improvement or deterioration of the wheel speed difference through the displayed wheel speed difference curve.

[0147] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A tire abnormal wear alarm method, characterized in that: The following steps are involved: When the vehicle start signal is input, the four-wheel speed signals are collected according to the preset conditions; When the accumulated time of collecting the four-wheel speed signals reaches the preset time, judging whether the difference of the four-wheel speeds exceeds the preset difference value according to the four-wheel speed signals; If it exceeds the limit, an abnormal tire wear alarm will be issued.

2. The abnormal tire wear alarm method according to claim 1, characterized in that: The collecting of four-wheel speed signals according to the preset conditions specifically comprises the following steps: Determine whether only the main driver is occupied; If not, stop collecting the four-wheel speed signals; If yes, determine whether the difference in tire pressures of the four tires is less than the preset tire pressure value; If not, stop collecting the four-wheel speed signals; If yes, determine whether the steering wheel angle is within a preset steering wheel angle range; If not, stop collecting the four-wheel speed signals; If yes, determine whether the longitudinal acceleration is within the preset acceleration range; If not, stop collecting the four-wheel speed signals; If yes, then determine whether the vehicle speed is within the preset speed range; If not, stop collecting the four-wheel speed signals; If yes, then collect the four-wheel speed signals.

3. The abnormal tire wear alarm method according to claim 1, characterized in that: The following steps are also included: When the number of times or duration of abnormal tire wear alarms reaches a threshold and no feedback is received from the user, the abnormal tire wear alarms will stop being issued.

4. The abnormal tire wear alarm method according to claim 1, characterized in that: The following steps are also included: When receiving the user's viewing operation, the improvement or deterioration of the wheel speed difference data is generated and displayed.

5. The abnormal tire wear alarm method according to claim 4, characterized in that: The following steps are also included: When the wheel speed difference data improves or deteriorates, it is displayed as a wheel speed difference curve.

6. A storage medium storing a computer program, characterized in that: The computer program is executed by a processor to perform the following steps: When the vehicle start signal is input, the four-wheel speed signals are collected according to the preset conditions; When the accumulated time of collecting the four-wheel speed signals reaches the preset time, judging whether the difference of the four-wheel speeds exceeds the preset difference value according to the four-wheel speed signals; If it exceeds the limit, an abnormal tire wear alarm will be issued.

7. The storage medium according to claim 6, characterized in that The collecting of four-wheel speed signals according to the preset conditions specifically comprises the following steps: Determine whether only the main driver is occupied; If not, stop collecting the four-wheel speed signals; If yes, determine whether the difference in tire pressures of the four tires is less than the preset tire pressure value; If not, stop collecting the four-wheel speed signals; If yes, determine whether the steering wheel angle is within a preset steering wheel angle range; If not, stop collecting the four-wheel speed signals; If yes, determine whether the longitudinal acceleration is within the preset angular velocity range; If not, stop collecting the four-wheel speed signals; If yes, then determine whether the vehicle speed is within the preset speed range; If not, stop collecting the four-wheel speed signals; If yes, then collect the four-wheel speed signals.

8. The storage medium according to claim 6, characterized in that The following steps are also included: When the number of times or duration of abnormal tire wear alarms reaches a threshold and no feedback is received from the user, the abnormal tire wear alarms will stop being issued.

9. The storage medium according to claim 6, characterized in that The computer program further performs the following steps when executed by the processor: When receiving the user's viewing operation, the improvement or deterioration of the wheel speed difference data is generated and displayed.

10. The storage medium according to claim 9, characterized in that The computer program further performs the following steps when executed by the processor: When the wheel speed difference data improves or deteriorates, it is displayed as a wheel speed difference curve.

Images