Vehicle tire state detection method, device and equipment and storage medium

Abstract

The invention provides a vehicle tire state detection method and device, equipment and a storage medium. The method comprises the following steps: acquiring a forward tread image of a tire to be detected and a lateral tread image of the tire; determining wear degree information of the tire according to the forward tread image and the lateral tread image of the tire; and obtaining a tire maintenance record of the to-be-detected vehicle, and determining the state of the to-be-detected tire according to the tire maintenance record and the wear degree information of the tire, the state of the tire including a concerned state and / or a to-be-replaced state. According to the method, the accuracy of the vehicle tire state detection method is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle tire status detection method, device, equipment and storage medium. Background Art

[0002] As the part that directly contacts the ground, the performance of tires directly affects the vehicle's handling stability, safety and comfort. As the vehicle is used, when tires are worn, especially when the tire tread is severely worn, the tire's grip and safety are greatly affected, which directly affects the vehicle's drivability and safety.

[0003] The prior art first collects a tire image, which includes a projection image of at least one pattern unit; then obtains actual parameters of the pattern unit based on the projection image of the pattern unit, the actual parameters including the depth of the groove in the pattern unit; and finally obtains tire wear degree information based on the actual parameters of the pattern unit.

[0004] However, the method of determining tire wear information only through tire images will result in inaccurate detection results of tire conditions. Summary of the invention

[0005] The present application provides a vehicle tire status detection method, device, equipment and storage medium to solve the problem of inaccurate vehicle tire status detection.

[0006] In a first aspect, the present application provides a method for detecting a tire status of a vehicle, comprising:

[0007] Collecting a front tread image and a side tread image of the tire to be inspected;

[0008] Determining wear degree information of the tire according to the front tread image and the side tread image of the tire;

[0009] The tire maintenance record of the vehicle to be detected is obtained, and the state of the tire to be detected is determined according to the tire maintenance record and the wear degree information of the tire, wherein the state of the tire includes a state of concern and / or a state to be replaced.

[0010] In a second aspect, the present application provides a vehicle tire status detection device, comprising:

[0011] An acquisition module, used for acquiring a front tread image and a side tread image of the tire to be inspected;

[0012] A determination module, used to determine the wear degree information of the tire according to the front tread image and the side tread image of the tire;

[0013] The determination module is further used to obtain the tire maintenance record of the vehicle to be detected, and determine the state of the tire to be detected based on the tire maintenance record and the tire wear degree information, wherein the tire state includes a concern state and / or a to-be-replaced state.

[0014] In a third aspect, the present application provides a vehicle tire status detection device, comprising:

[0015] Processor, memory, communication interface;

[0016] The memory is used to store executable instructions of the processor;

[0017] Wherein, the processor is configured to execute the vehicle tire status detection method as described in the first aspect above by executing the executable instructions.

[0018] In a fourth aspect, the present application provides a readable storage medium, comprising: a computer program stored thereon, wherein when the computer program is executed by a processor, the vehicle tire status detection method as described in the first aspect above is implemented.

[0019] The vehicle tire condition detection method, device, equipment and storage medium provided in the present application collect the front tread image and the side tread image of the tire to be detected, determine the tire wear degree information based on the front tread image and the side tread image of the tire, obtain the tire maintenance record of the vehicle to be detected, and determine the condition of the tire to be detected based on the tire maintenance record and the tire wear degree information, wherein the tire condition includes a focus state and / or a replacement state, wherein, on the basis of collecting the front tread image of the tire of the vehicle to be detected, collecting the side image of the tire of the vehicle to be detected is added, thereby improving the accuracy of the tire wear degree information judgment, and at the same time, the condition of the tire of the vehicle to be detected is determined in combination with the tire maintenance record of the vehicle to be detected, thereby improving the accuracy of the tire condition, and further improving the accuracy of the vehicle tire condition detection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] Figure 1 A schematic diagram of a process flow of a vehicle tire status detection method provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of a process for determining tire wear information based on a front tread image and a side tread image of a tire according to an embodiment of the present application;

[0023] Figure 3An example diagram of wear marks on vehicle tires;

[0024] Figure 4 An example diagram showing the location of wear marks on vehicle tires;

[0025] Figure 5 A schematic diagram of a process for determining the state of tires of a vehicle to be inspected based on tire maintenance records and tire wear information provided in an embodiment of the present application;

[0026] Figure 6 A schematic diagram of a process for prompting a user according to a tire status provided in an embodiment of the present application;

[0027] Figure 7 A schematic diagram of the structure of a vehicle tire status detection device provided in an embodiment of the present application;

[0028] Figure 8 A schematic diagram of the structure of a vehicle tire status detection device provided in an embodiment of the present application.

[0029] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0031] The prior art first collects a tire image, which includes at least a projection image of a pattern unit; then obtains the actual parameters of the pattern unit based on the projection image of the pattern unit, and the actual parameters include the depth of the groove in the pattern unit; finally obtains the tire wear degree information based on the actual parameters of the pattern unit. However, the method of determining the tire wear degree information only through the tire image will result in inaccurate detection results of the tire status.

[0032] The present application collects a forward tread image and a side tread image of the tire to be tested, determines the tire wear degree information based on the forward tread image and the side tread image of the tire, obtains the tire maintenance record of the vehicle to be tested, and determines the status of the tire to be tested based on the tire maintenance record and the tire wear degree information, wherein the tire status includes a focus status and / or a replacement status, wherein, on the basis of collecting the forward tread image of the tire of the vehicle to be tested, collecting the side image of the tire of the vehicle to be tested is added, thereby improving the accuracy of the judgment of the tire wear degree information, and at the same time, the status of the tire of the vehicle to be tested is determined in combination with the tire maintenance record of the vehicle to be tested, thereby improving the accuracy of the tire status, and further improving the accuracy of the vehicle tire status detection method.

[0033] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0034] Figure 1 This is a flow chart of a vehicle tire status detection method provided in the first embodiment of the present application. The execution subject is a vehicle tire status detection device, which can generally be implemented by software, hardware, or a combination of software and hardware.

[0035] like Figure 1 As shown, the tire status detection method of the vehicle of this embodiment may include the following steps:

[0036] Step S101: collecting a front tread image and a side tread image of a tire to be inspected.

[0037] Specifically, the front tread image of the tire of the vehicle to be detected that is in contact with the road surface and the side tread image of the tire can be collected to determine the wear degree information of the tire. The method of collecting the front tread image and the side tread image of the tire includes but is not limited to: collecting images through multiple cameras installed around the tire.

[0038] Optionally, a tire status detection signal sent by a user can be received. If the tire status detection signal sent by the above user is received, the above camera can be turned on to collect tire images for determining the tire wear degree information. Optionally, if the tire status detection signal sent by the above user is received, the tire pressure detection system can be turned on to determine the tire pressure and give prompts for abnormal tire pressure. If it is determined based on the front tread image and side tread image of the tire collected above that the tires of the vehicle to be detected are not worn, but the tire pressure system detects that the tire pressure of the vehicle to be detected is abnormal, then a tire pressure abnormality prompt is sent to provide guidance for vehicle tire maintenance and repair.

[0039] Step S102: Determine tire wear information based on the front tread image and the side tread image of the tire.

[0040] Specifically, the tire wear degree information may be determined according to the front tread image and the side tread image of the tire of the vehicle to be detected collected in step S101.

[0041] Among them, the tires of the vehicle to be tested are divided into steering wheels and driving wheels. For example, the two front wheels of a certain brand of vehicle are steering wheels. Specifically, due to the driving principle of the vehicle, the sides of the steering wheels are more susceptible to wear than the driving wheels. Therefore, it is particularly important to detect the side wear status of the steering wheels. Optionally, the side wear degree information of the tire can be determined based on the side tread image of the above tire, and the status of the steering wheel can be further determined to ensure safe driving of the vehicle.

[0042] Optionally, the forward wear degree information in the wear degree information can be determined based on the forward tread image of the tire of the vehicle to be tested, and the lateral wear degree information in the wear degree information can be determined based on the lateral tread image of the tire of the vehicle to be tested.

[0043] Step S103: Obtain the tire maintenance record of the vehicle to be tested, and determine the status of the tire to be tested according to the tire maintenance record and the tire wear degree information, wherein the tire status includes a concern status and / or a replacement status.

[0044] Specifically, the tire maintenance record of the vehicle to be detected may be obtained, and the state of the tire of the vehicle to be detected may be determined according to the tire maintenance record and the tire wear degree information determined in step S102.

[0045] The method of obtaining the tire maintenance record of the vehicle to be tested includes but is not limited to: extracting from the vehicle maintenance record stored in the vehicle control system, extracting from the tire maintenance record stored in the vehicle tire pressure detection system, or extracting from the tire maintenance record directly input by the user, etc. The status of the tire of the vehicle to be tested includes but is not limited to: the state of concern and / or the state to be replaced, etc.

[0046] Specifically, when the tire maintenance records of the vehicles to be tested are different, the states of the tires of the vehicles to be tested determined based on the same tire wear degree information may be different. For example, if it is known from the tire maintenance records that new tires were replaced during the last maintenance, the tire wear degree may be higher for the concerned state of the tires. For example, if it is known from the tire maintenance records that new tires were not replaced during the last maintenance, for example, repairs were performed, the tire wear degree needs to be lower for the concerned state of the tires.

[0047] The vehicle tire status detection method provided in the present embodiment collects the front tread image and the side tread image of the tire to be detected, determines the tire wear degree information according to the front tread image and the side tread image of the tire, obtains the tire maintenance record of the vehicle to be detected, and determines the status of the tire to be detected according to the tire maintenance record and the tire wear degree information, wherein the status of the tire includes a state of concern and / or a state to be replaced, wherein the status of the tire includes a state of concern and / or a state to be replaced, wherein, on the basis of collecting the front tread image of the tire of the vehicle to be detected, collecting the side image of the tire of the vehicle to be detected is added, thereby improving the accuracy of the judgment of the tire wear degree information, and at the same time, the status of the tire of the vehicle to be detected is determined in combination with the tire maintenance record of the vehicle to be detected, thereby improving the accuracy of the tire status, and further improving the accuracy of the vehicle tire status detection method.

[0048] Figure 2 A schematic diagram of a process for determining tire wear information based on a front tread image and a side tread image of a tire according to a second embodiment of the present application, wherein Figure 1 On the basis of the illustrated embodiment, this embodiment describes the process of determining the wear degree information of the tire according to the front tread image and the side tread image of the tire.

[0049] like Figure 2 As shown, in this embodiment, determining the tire wear degree information according to the front tread image and the side tread image of the tire may include the following steps:

[0050] Step S201: Identify the wear mark position indication in the side tread image, and determine the wear mark in the front tread image according to the position indicated by the wear mark position indication.

[0051] Wherein, the vehicle to be detected includes multiple wear mark position indications, each wear mark position indication points to at least one wear mark, wherein the wear mark position indication is mostly located on the side of the tire, close to the ground. Wherein, the wear mark position indication is mostly a triangular protrusion with a certain height, and the tip of the triangle mostly points to the side of the tire close to the ground to indicate the position of the wear mark. Wherein, the wear mark is mostly located on the non-ground contacting tread of the positive tread of the tire. Wherein, the wear marks are mostly cubic protrusions with a certain height uniformly distributed on the positive tread of the tire, wherein at least one wear mark is included at the position pointed to by a wear mark position indication, and multiple wear marks are distributed in a row, wherein, when the tire leaves the factory, the wear mark is not in direct contact with the ground, that is, the ground contacting the tire is at a certain distance from the top of the wear mark. Wherein, the number and position distribution of the wear marks and the wear mark position indications are related to the tire brand, and are not limited in this embodiment. Figure 3 The figure is an example of wear marks on a vehicle tire, wherein the circled portion is the wear mark on the vehicle tire. Figure 4 This is an example diagram of the wear mark position indication of a vehicle tire, wherein the circled portion is the wear mark position indication of the vehicle tire.

[0052] Specifically, the wear mark position indication in the side tread image can be identified, and the wear mark can be determined in the front tread image according to the position indicated by the wear mark position indication, so as to determine the forward wear degree information of the tire according to the wear mark in the forward tread image of the tire.

[0053] Optionally, the wear marks in the forward tread image may be directly identified to determine the forward wear degree information of the tire according to the wear marks in the forward tread image of the tire.

[0054] Step S202: determining a plurality of first height differences between the ground contacting tread of the forward tread and the top of the wear mark, and determining a plurality of second height differences between the ground contacting tread of the forward tread and the top of the wear mark, based on the forward tread image.

[0055] Specifically, based on the wear mark determined in step S201, multiple first height differences M between the ground-contacting tread of the positive tread and the top of the wear mark can be determined according to the positive tread image of the tire collected in step S101, and multiple second height differences H between the non-ground-contacting tread of the positive tread and the top of the wear mark can be determined.

[0056] Step S203: Determine the forward wear degree information of the tire according to the multiple first height differences and / or the multiple second height differences.

[0057] The wear degree information includes forward wear degree information.

[0058] Specifically, the positive wear degree information of the tire can be determined based on the multiple first height differences and / or multiple second height differences determined in step S202, wherein the positive wear degree information of the tire includes but is not limited to: a positive first slight wear level, a positive second slight wear level, a positive first severe wear level, and a positive second severe wear level.

[0059] The forward wear degree information of the tire can be determined according to the multiple first height differences. For example, if the tire of the vehicle to be detected has n wear marks, M m is any first height difference, 1<=m<=n, M i is the average value of multiple first height differences,

[0060] Specifically, if the average value of the plurality of first height differences is less than or equal to the first height difference threshold, the tire wear degree information is determined to be a positive first slight wear level;

[0061] For example: If M m <=0.3mm, the tire wear level information is positive first slight wear level.

[0062] If the average value of multiple first height differences is greater than or equal to the first height difference threshold and less than or equal to the second height difference threshold, the positive wear degree information of the tire is the positive second slight wear level, and the second height difference threshold is greater than the first height difference threshold.

[0063] For example: If 0.3mm<=M m <=0.5mm, the tire's positive wear level information is the second slight positive wear level.

[0064] The forward wear degree information of the tire can be determined according to the multiple second height differences. For example, when the tire of the vehicle to be detected has n wear marks, H m is any second height difference, 1<=m<=n, H i is the average value of multiple second height differences,

[0065] Specifically, if any second height difference is less than or equal to the third height difference threshold, or the average of multiple second height differences is less than or equal to the fourth height difference threshold, the positive wear degree information of the tire is determined to be the positive first severe wear level.

[0066] For example: If H m <=0.5mm, or H i When ≤1 mm, the positive wear degree information of the tire is determined as the positive first severe wear level.

[0067] If any second height difference is greater than the third height difference threshold and less than or equal to the fifth height difference threshold, or the average of multiple second height differences is greater than the fourth height difference threshold and less than or equal to the sixth height difference threshold, the positive wear degree information of the tire is determined as the positive second severe wear level, the fifth height difference threshold is greater than the third height difference threshold, and the sixth height difference threshold is greater than the fourth height difference threshold.

[0068] For example: if 0.5mm <H m <=0.8mm, or 1mm <H i When ≤1.3 mm, the positive wear degree information of the tire is determined as the second most severe positive wear level.

[0069] Step S204: determining a plurality of third height differences between a non-contacting surface of the side tread of the tire and a top end of the wear mark position indicator according to the side tread image.

[0070] The wear degree information includes: lateral wear degree information.

[0071] As described in step S201, the vehicle to be detected includes a plurality of wear mark position indicators, and the wear mark position indicators are mostly located on the side of the tire, close to the ground.

[0072] Specifically, a plurality of third height differences N between the non-contacting surface of the side tread of the tire and the top end of the wear mark position indicator may be determined based on the side tread image.

[0073] Step S205: Determine the lateral wear degree information of the tire according to the multiple third height differences.

[0074] Specifically, the lateral wear degree information of the tire can be determined according to the multiple third height differences determined in step S204. In the case where the tire of the vehicle to be detected has p wear mark position indications, N q is any third height difference, 1<=q<=p, N i is the average value of multiple third height differences,

[0075] Specifically, if any third height difference is less than or equal to the seventh height difference threshold, or the average of multiple third height differences is less than or equal to the eighth height difference threshold, the side wear degree information of the tire is determined as the side wear level; otherwise, the side wear degree information of the tire is determined as the side unworn level.

[0076] For example: If N q <=0.05mm, or N i <=0.1mm, or the lateral wear degree information of the tire is determined as the lateral wear level, otherwise the lateral wear degree information of the tire is determined as the lateral non-worn level.

[0077] Optionally, the first height difference threshold, the second height difference threshold, the third height difference threshold, the fourth height difference threshold, the fifth height difference threshold, the sixth height difference threshold and the seventh height difference threshold may be preset according to user needs.

[0078] The present embodiment provides a method for determining tire wear information based on the front tread image and the side tread image of each tire, and respectively determines a first height difference, a second height difference, and a third height difference through the front tread image and the side tread image of each tire, and presets multiple height difference thresholds to determine the tire wear information in combination with the height difference thresholds, thereby improving the accuracy of the tire wear information and further improving the accuracy of the tire detection method.

[0079] Figure 5 A flowchart of determining the state of a tire to be tested based on tire maintenance records and tire wear information provided in the third embodiment of the present application is shown in FIG. Figure 1 or Figure 2 Based on the illustrated embodiment, the tire maintenance record includes: a first maintenance record and / or a second maintenance record, the first maintenance record indicates that a new tire was not replaced during the maintenance process, and the second maintenance record indicates that a new tire was replaced during the maintenance process. This embodiment describes in detail the process of determining the status of the tire to be tested based on the tire maintenance record and the tire wear degree information.

[0080] like Figure 5 As shown, in this embodiment, determining the state of the tire to be detected according to the tire maintenance record and the tire wear degree information may include the following steps:

[0081] Step S501: Determine the type of tire.

[0082] Specifically, as described in step S102, the tires of the vehicle to be detected are divided into steering wheels and running wheels. The type of tire can be determined before determining the state of the tire of the vehicle to be detected. Optionally, the type of tire can be determined by obtaining basic information of the vehicle.

[0083] Step S502: If the tire is a driving wheel, determine the status of the tire of the vehicle to be tested according to the tire maintenance record and the tire wear degree information.

[0084] Among them, the maintenance record includes a first maintenance record that records that the tire to be tested was not replaced with a new tire during the last maintenance process, that is, the tire to be tested was an old tire. The maintenance record also includes a second maintenance record that records that the tire to be tested was replaced with a new tire during the last maintenance process, that is, the tire to be tested was a new tire.

[0085] Specifically, if the tire is determined to be a driving wheel according to the judgment in step S501, it can be determined whether the current tire is a new tire according to the tire maintenance record of the vehicle to be detected. Specifically, if the current tire is determined to be an old tire, that is, if the tire maintenance record is the first maintenance record, the forward wear degree information of the tire is the first forward slight wear level, and the tire state is set to the attention state; if the tire maintenance record is the first maintenance record, the forward wear degree information of the tire is the first forward severe wear level, and the tire state is set to the replacement state. Among them, when the set state of the tire is the attention state, the user needs to perform maintenance on the tire of the vehicle to be detected, or replace the tire as needed when going to travel a long distance or about to enter a driving area with poor road conditions, or pay special attention to the state of the tire. Specifically, if it is determined that the current tire is a new tire, that is, if the tire maintenance record is the second maintenance record, and the tire's forward wear degree information is the first forward slight wear level or the second forward slight wear level, the tire's state is set to the attention state; if the tire maintenance record is the second maintenance record, and the tire's forward wear degree information is the first forward severe wear level or the second forward severe wear level, the tire's state is set to the waiting state. When the tire's set state is the waiting state, the user needs to replace the tire of the vehicle to be inspected to prevent driving accidents caused by severe tire wear.

[0086] Step S503: If the tire is a steering wheel, determine the status of the tire of the vehicle to be tested according to the tire maintenance record and the tire wear degree information.

[0087] Specifically, if it is determined in step S501 that the tire is a steering wheel, the state of the tire of the vehicle to be inspected may be determined based on the tire maintenance record and tire wear information.

[0088] Among them, if the lateral wear degree information of the tire is the lateral unworn level, specifically, if it is determined that the current tire is a used tire, that is, if the tire maintenance record is the first maintenance record, the forward wear degree information of the tire is the first forward slight wear level, the tire state is set to the attention state; if the tire maintenance record is the first maintenance record, the forward wear degree information of the tire is the first forward severe wear level, the tire state is set to the state to be replaced. Specifically, if it is determined that the current tire is a new tire, if the tire maintenance record is the second maintenance record, the forward wear degree information of the tire is the first forward slight wear level or the second forward slight wear level, the tire state is set to the attention state; if the tire maintenance record is the second maintenance record, the forward wear degree information of the tire is the first forward severe wear level or the second forward severe wear level, the tire state is set to the state to be replaced.

[0089] If the side wear degree information of the tire is the side wear level, the state of the tire is set to the state to be replaced. That is, if the side wear degree information of the tire is the side wear level, no matter what kind of tire it is, that is, no matter whether the tire is a new tire or an old tire, and no matter what level the forward wear degree information of the tire is, the state of the tire is set to the state to be replaced.

[0090] Optionally, as described above, the vehicle's driving wheels have lower requirements for side tire wear information. Therefore, when the state of the steering wheel is set to a to-be-replaced state based only on the side wear, and the tire of the steering wheel is replaced according to the replacement state in the tire state, the replaced steering wheel can be used as a driving wheel.

[0091] Optionally, in addition to first determining the type of tire as described in step S501 to this step, and then determining the status of the tire of the vehicle to be tested based on the judgment result combined with the tire maintenance record and the tire wear information, the tire maintenance record includes: a third maintenance record, the third maintenance record indicates the number of abnormal tire pressures within a set time without replacing the tires. If it is determined that the number of abnormal tire pressures within a set time exceeds a certain number based on the third maintenance record in the tire maintenance record of the vehicle to be tested, the status of the tire is set to a to-be-replaced state.

[0092] Specifically, according to the third maintenance record in the tire maintenance record of the vehicle to be detected obtained in step S103, if it is determined that the number of abnormal tire pressures within a set time exceeds a certain number, the tire state is set to a state to be replaced. For example, if the number of abnormal tire pressures exceeds two times within a week, the tire is an abnormal tire, and the tire state is set to a state to be replaced.

[0093] The present embodiment provides a process for determining the status of each tire of the vehicle to be tested based on the tire maintenance record and the tire wear degree information. On the basis of determining the tire wear degree information, the tire status is judged in combination with the type of tire to be tested and the tire maintenance record of the vehicle to be tested, thereby improving the accuracy of the tire status detection method.

[0094] Figure 6 A schematic diagram of a process for prompting a user according to a tire status provided in the fourth embodiment of the present application. Figure 1 or Figure 2 or Figure 5 Based on the illustrated embodiment, this embodiment describes in detail the process of prompting the user according to the status of the tire.

[0095] like Figure 6 As shown, in this embodiment, prompting the user according to the tire status may include the following steps:

[0096] Step S601: Generate a tire status reminder according to the tire status.

[0097] Specifically, a tire status reminder may be generated according to the tire status determined above, and optional tire status reminders include but are not limited to: a concern status reminder and a pending replacement status reminder.

[0098] Step S602: Send a tire status reminder to the user.

[0099] Specifically, the tire status reminder generated in step S601 may be sent to the user. Optionally, the tire status reminder may be sent to the user in a manner including, but not limited to, sending to a display interface of a tire status detection device of the vehicle, a display interface of an onboard control system, or a display interface of a user terminal connected to the tire status detection device of the vehicle, or sending by voice.

[0100] Optionally, if the tire status is a concern status and the tire wear is low, a tire status reminder can be sent to the user at a certain time interval to remind the user to pay attention to the tire status. Optionally, if the tire status is a reminder to be replaced and the tire wear is high, the frequency of sending the tire status reminder is increased and the time interval for sending the tire status reminder is shortened to remind the user to complete the tire replacement as soon as possible.

[0101] Step S603: receiving a tire maintenance trigger instruction sent by the user.

[0102] Specifically, after the tire status reminder is sent to the user as described in step S602, the user can decide whether to perform tire maintenance according to the needs and further determination of the tire status. If the user determines that the tire needs to be repaired, a tire maintenance trigger instruction can be sent to the tire status detection device of the vehicle. Optionally, the user sends the tire maintenance trigger instruction in a manner including but not limited to: through the display interface of the tire status detection device of the vehicle, through the display interface of the vehicle control system, through the display interface of the user terminal connected to the tire status detection device of the vehicle, or voice transmission, etc.

[0103] Step S604: obtaining the nearest maintenance point location from the current location of the vehicle to be detected, and generating a tire maintenance point navigation route according to the current location and the maintenance point location.

[0104] Specifically, if the tire repair trigger instruction sent by the user described in step S603 is received, the location of the nearest repair point from the current location of the vehicle to be detected can be obtained, and a tire repair point navigation route can be generated according to the current location and the location of the repair point.

[0105] Step S605: Send the navigation route of the tire repair point to the user.

[0106] Specifically, the tire repair point navigation route generated in step S604 may be sent to the user, so that the user can navigate to the nearest repair location according to the tire repair point navigation route. Optionally, the tire repair point navigation route may be sent to the user in a manner including, but not limited to, via a display interface of a tire status detection device of the vehicle, via a display interface of an onboard control system, via a display interface of a user terminal connected to the tire status detection device of the vehicle, and the like.

[0107] The process of prompting the user according to the tire status provided in this embodiment is described in detail, so that the user can process the prompt information of the tire status in a timely manner.

[0108] Figure 7 A schematic structural diagram of a vehicle tire status detection device provided in the fifth embodiment of the present application.

[0109] like Figure 7 As shown, the vehicle tire state detection device 70 of this embodiment includes a collection module 71 and a determination module 72 .

[0110] The acquisition module 71 is used to acquire the front tread image and the side tread image of the tire to be inspected.

[0111] The determination module 72 determines the wear degree information of the tire according to the front tread image and the side tread image of the tire.

[0112] The determination module 72 is further used to obtain the tire maintenance record of the vehicle to be detected, and determine the state of the tire to be detected based on the tire maintenance record and the tire wear degree information, wherein the tire state includes a concern state and / or a replacement state.

[0113] The device provided in this embodiment can be used to execute the above method embodiment Figures 1 to 6 The technical solution has similar implementation principles and technical effects, which will not be described in detail in this embodiment.

[0114] Figure 8 A schematic structural diagram of a vehicle tire status detection device provided in the sixth embodiment of the present application.

[0115] like Figure 8 As shown, the vehicle tire state detection device 80 of this embodiment includes: a processor 81 , a memory 82 , and a communication interface 83 .

[0116] The memory 82 is used to store executable instructions of the processor;

[0117] The processor 81 is configured to execute the above method embodiment by executing executable instructions. Figures 1 to 6A method for detecting a tire condition of a vehicle according to any one of the preceding claims.

[0118] The present application also provides a readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the above method embodiment is implemented. Figures 1 to 6 A method for detecting a tire condition of a vehicle according to any one of the preceding claims.

[0119] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0120] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0121] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for detecting tire status of a vehicle, characterized in that: include: Collecting a front tread image and a side tread image of the tire to be inspected; Determining wear degree information of the tire according to the front tread image and the side tread image of the tire; The tire maintenance record of the vehicle to be detected is obtained, and the state of the tire to be detected is determined according to the tire maintenance record and the wear degree information of the tire, wherein the state of the tire includes a state of concern and / or a state to be replaced.

2. The method according to claim 1, characterized in that The wear degree information includes: forward wear degree information, and the wear degree information of the tire is determined according to the forward tread image and the side tread image of the tire, including: identifying a wear mark position indication in the side tread image, and determining a wear mark in the front tread image according to a position indicated by the wear mark position indication; Determine, based on the forward tread image, a plurality of first height differences between a ground-contacting tread of the forward tread and a top end of the wear mark, and determine a plurality of second height differences between a ground-contacting tread of the forward tread and a top end of the wear mark; The positive wear degree information of the tire is determined according to the plurality of first height differences and / or the plurality of second height differences.

3. The method according to claim 2, characterized in that The determining, according to the plurality of first height differences, information about the positive wear degree of the tire comprises: If the average value of the plurality of first height differences is less than or equal to the first height difference threshold, the positive wear degree information of the tire is determined as a positive first slight wear level; If the average value of multiple first height differences is greater than the first height difference threshold and less than or equal to the second height difference threshold, the positive wear degree information of the tire is determined as the positive second slight wear level, and the second height difference threshold is greater than the first height difference threshold.

4. The method according to claim 2, characterized in that: Determining the forward wear degree information of the tire according to the plurality of second height differences includes: If any of the second height differences is less than or equal to a third height difference threshold, or an average of a plurality of the second height differences is less than or equal to a fourth height difference threshold, the forward wear degree information of the tire is determined to be a forward first severe wear level; If any of the second height differences is greater than the third height difference threshold and less than or equal to the fifth height difference threshold, or the average of multiple second height differences is greater than the fourth height difference threshold and less than or equal to the sixth height difference threshold, the positive wear degree information of the tire is determined as the positive second severe wear level, the fifth height difference threshold is greater than the third height difference threshold, and the sixth height difference threshold is greater than the fourth height difference threshold.

5. The method according to claim 4, characterized in that The wear degree information includes: lateral wear degree information, and the wear degree information of the tire is determined according to the front tread image and the lateral tread image of each tire, and further includes: Determining, based on the side tread image, a plurality of third height differences between a non-ground contacting tread of the side tread and a top end of the wear mark position indicator; The lateral wear degree information of the tire is determined according to the plurality of third height differences.

6. The method according to claim 5, characterized in that Determining the lateral wear degree information of the tire according to the plurality of third height differences includes: If any of the third height differences is less than or equal to the seventh height difference threshold, or the average of multiple third height differences is less than or equal to the eighth height difference threshold, the side wear degree information of the tire is determined as the side wear level; otherwise, the side wear degree information of the tire is determined as the side unworn level.

7. The method according to claim 6, characterized in that The tire maintenance record includes: a first maintenance record and / or a second maintenance record, the first maintenance record indicates that a new tire was not replaced during the maintenance process, and the second maintenance record indicates that a new tire was replaced during the maintenance process, the tire is a driving wheel, and determining the state of the tire to be detected according to the tire maintenance record and the wear degree information of the tire includes: If the tire maintenance record is the first maintenance record, the forward wear degree information of the tire is the forward first slight wear level, and the state of the tire is set as the concerned state; If the tire maintenance record is the first maintenance record, and the forward wear degree information of the tire is the forward first severe wear level, the state of the tire is set to the waiting-for-replacement state; If the tire maintenance record is the second maintenance record, and the forward wear degree information of the tire is the forward first slight wear level or the forward second slight wear level, the state of the tire is set as the concerned state; If the tire maintenance record is the second maintenance record, and the forward wear degree information of the tire is the forward first severe wear level or the forward second severe wear level, the state of the tire is set to the to-be-replaced state.

8. The method according to claim 7, characterized in that The tire is a steering wheel, the lateral wear degree information of the tire is the lateral unworn level, and determining the state of the tire to be detected according to the tire maintenance record and the tire wear degree information includes: If the tire maintenance record is the first maintenance record, the forward wear degree information of the tire is the forward first slight wear level, and the state of the tire is set as the concerned state; If the tire maintenance record is the first maintenance record, and the forward wear degree information of the tire is the forward first severe wear level, setting the state of the tire to the to-be-replaced state; If the tire maintenance record is the second maintenance record, and the forward wear degree information of the tire is the forward first slight wear level or the forward second slight wear level, the state of the tire is set as the concerned state; If the tire maintenance record is the second maintenance record, and the forward wear degree information of the tire is the forward first severe wear level or the forward second severe wear level, the state of the tire is set to the to-be-replaced state.

9. The method according to claim 8, characterized in that The tire is a steering wheel, the lateral wear degree information of the tire is the lateral wear grade, and the state of the tire to be detected is determined according to the tire maintenance record and the tire wear degree information, including: The state of the tire is set to the to-be-replaced state.

10. The method according to claim 9, characterized in that The tire maintenance record includes: a third maintenance record, wherein the third maintenance record indicates the number of abnormal tire pressures within a set time period when the tire is not replaced, and the state of the tire to be detected is determined based on the tire maintenance record and the tire wear degree information, and further includes: According to the third maintenance record in the tire maintenance information of the vehicle to be detected, if it is determined that the number of abnormal tire pressures within a set time exceeds a certain number, the state of the tire is set to the state to be replaced.

11. The method according to any one of claims 1 to 10, characterized in that: The method further comprises: generating a tire status reminder according to the tire status; The tire status reminder is sent to the user.

12. The method according to claim 11, characterized in that The method further comprises: Receive a tire maintenance trigger instruction sent by a user; Obtaining the nearest maintenance point location from the current location of the vehicle to be detected, and generating a tire maintenance point navigation route according to the current location and the maintenance point location; The tire repair point navigation route is sent to the user.

13. A vehicle tire status detection device, characterized in that: include: An acquisition module, used for acquiring a front tread image and a side tread image of the tire to be inspected; A determination module, used to determine the wear degree information of the tire according to the front tread image and the side tread image of the tire; The determination module is further used to obtain the tire maintenance record of the vehicle to be detected, and determine the state of the tire to be detected based on the tire maintenance record and the tire wear degree information, wherein the tire state includes a concern state and / or a to-be-replaced state.

14. A vehicle tire status detection device, characterized in that: include: Processor, memory, communication interface; The memory is used to store executable instructions of the processor; The processor is configured to execute the vehicle tire status detection method according to any one of claims 1 to 12 by executing the executable instructions.

15. A readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the vehicle tire status detection method according to any one of claims 1 to 12 is implemented.

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