Tire pressure disturbance processing method and device, terminal equipment and storage medium

Abstract

The application relates to the technical field of tire pressure detection, in particular to a tire pressure interference processing method and device, a terminal equipment and a storage medium, the method comprises the following steps: sending a detection signal to a tire pressure sensor in a preset two-way communication protocol; when losing tire pressure data fed back from the tire pressure sensor, sending a verification instruction to the tire pressure sensor through a verification process; and determining an interference detection result of the tire pressure sensor according to the feedback state of the tire pressure sensor to the verification instruction. In the case of tire pressure sensor data loss, a targeted verification process is used for verification, and then according to the difference of the feedback state, the specific fault of the tire pressure sensor is determined, so that more accurate fault detection operation is realized.

Description

Technical Field

[0001] This application relates to the field of sensor detection technology, and in particular to a tire pressure interference processing method, apparatus, terminal equipment, and storage medium. Background Technology

[0002] Tire pressure monitoring systems (TPMS) are a crucial component for ensuring driving safety. Interference from other in-vehicle electronic devices (such as ambient lighting) can cause the vehicle's electronic control unit (ECU) to fail to receive data from the tire pressure sensors, leading to TPMS malfunction and customer complaints. Existing solutions primarily focus on improving the ECU's interference immunity or optimizing signal transmission paths, but these methods cannot effectively identify the specific cause of the problem. Summary of the Invention

[0003] In view of this, embodiments of this application provide a tire pressure interference processing method, apparatus, terminal device, and storage medium, which can effectively solve the problem of not being able to effectively distinguish the specific causes of the problem.

[0004] In a first aspect, embodiments of this application provide a method for handling tire pressure interference, including: The system sends detection signals to the tire pressure sensor periodically via a pre-defined two-way communication protocol. When tire pressure data from the tire pressure sensor is lost, a verification command is sent to the tire pressure sensor through a verification process. The detection result of the tire pressure sensor is determined based on the feedback status of the tire pressure sensor.

[0005] In some embodiments, determining the detection result of the tire pressure sensor based on the feedback state of the tire pressure sensor includes: Obtain the detection response result of the tire pressure sensor. If the detection response result of the tire pressure sensor is successfully obtained, it is determined to be external signal interference. If no detection response result is obtained from the tire pressure sensor after a preset time, the tire pressure sensor is determined to be faulty.

[0006] In some embodiments, the step of periodically sending detection signals to the tire pressure sensor via a preset bidirectional communication protocol includes: The timestamp, encrypted verification code, target tire pressure sensor ID, and detection command are packaged in a standardized format to form a communication message; The communication message is sent to the target tire pressure sensor according to the communication frequency band of the tire pressure sensor.

[0007] In some embodiments, the method further includes: If the external signal interference is determined to be the cause, the communication frequency band is switched to the preset backup frequency band. Monitor the communication quality of the backup frequency band after the switch, determine whether there is external signal interference on the backup frequency band, and if so, continue the switch; otherwise, use the backup frequency band.

[0008] In some embodiments, the method further includes: If the external signal interference is determined, the source of the interference is determined by the signal strength. The interference source is pushed to the user via the vehicle's display screen, prompting the user to deal with the interference source.

[0009] In some embodiments, the method further includes: If the tire pressure sensor is determined to be faulty, a fault code is triggered. Based on the fault code, the fault level and fault type are determined, and alarm measures are taken according to the fault level. If the fault type is power depletion, a low-power sleep command is sent to the tire pressure sensor; If the fault type is continuous no response, the corresponding warning light will be triggered and the corresponding text warning will be displayed on the vehicle display screen; If the fault type is intermittent data loss, a text prompt will be displayed on the vehicle's in-vehicle display screen.

[0010] In some embodiments, when tire pressure data from the tire pressure sensor is lost, sending a verification command to the tire pressure sensor through a verification process includes: If no tire pressure data is received from the tire pressure sensor for a preset number of consecutive times, it is determined that the tire pressure sensor signal is lost. The communication frequency band with the tire pressure sensor is adjusted to the broadcast frequency band, and then a verification command is sent to the tire pressure sensor through the broadcast frequency band. The verification command includes unique identification information, which can only be recognized and responded to by the tire pressure sensor.

[0011] Secondly, this application also provides a tire pressure interference treatment device, comprising: The tire pressure monitoring module is used to send detection signals to the tire pressure sensor at set intervals via a preset two-way communication protocol. The sensor detection module is used to send a verification command to the tire pressure sensor through a verification process when the tire pressure data fed back from the tire pressure sensor is lost. The identification module detection module is used to determine the interference detection result of the tire pressure sensor based on the feedback status of the tire pressure sensor to the verification command.

[0012] Thirdly, this application also provides a terminal device, the terminal device including a processor and a memory, the memory storing a computer program, and the processor executing the computer program to implement the tire pressure interference processing method described above.

[0013] Fourthly, this application also provides a computer-readable storage medium storing a computer program that, when executed on a processor, implements the tire pressure interference processing method described above.

[0014] The embodiments of this application have the following beneficial effects: This method uses a preset two-way communication protocol to periodically send detection signals to the tire pressure sensor. When tire pressure data from the tire pressure sensor is lost, a verification command is sent to the tire pressure sensor through a verification process. Based on the feedback status of the tire pressure sensor, the detection result of the tire pressure sensor is determined. For cases of tire pressure sensor data loss, a targeted verification process is used for verification, and then the specific fault of the tire pressure sensor is determined based on the different feedback statuses, thereby achieving more accurate fault detection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic flowchart of a tire pressure interference handling method according to an embodiment of this application is shown; Figure 2 A schematic diagram of a tire pressure disturbance scenario according to an embodiment of this application is shown; Figure 3 A schematic diagram of a tire pressure interference treatment device according to an embodiment of this application is shown. Detailed Implementation

[0017] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0018] The components of the embodiments of this application described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0019] In the following text, the terms "comprising," "having," and their cognates, which may be used in various embodiments of this application, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more combinations thereof. Furthermore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0020] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be construed as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.

[0021] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] Data interaction between tire pressure sensors and automotive electronic control units may malfunction due to frequency interference from other electronic devices in the vehicle, and the interference problem cannot be properly located during use. This application provides a tire pressure interference handling method to address this situation. When tire pressure data is lost, a verification process is performed, and the specific cause of the tire pressure sensor failure is determined based on the feedback status.

[0023] The following examples illustrate the method for handling tire pressure interference.

[0024] Figure 1 A flowchart of a tire pressure interference handling method according to an embodiment of this application is shown. Exemplarily, the tire pressure interference handling method includes the following steps: In step S100, a detection signal is sent to the tire pressure sensor at regular intervals through a preset two-way communication protocol.

[0025] The method in this embodiment is mainly applied to the vehicle's central control system. The tire pressure sensor is mainly used to feed back the tire pressure data it detects to the vehicle. In this embodiment, communication with the tire pressure sensor is carried out through a preset two-way communication protocol.

[0026] like Figure 2 The diagram illustrates a tire pressure interference scenario in this embodiment. The scenario includes an in-vehicle central control unit 100, a tire pressure sensor 200, and an external interference source 300. The external interference source 300 mainly refers to devices inside the vehicle that could act as interference sources, such as ambient lighting and in-vehicle antennas. This embodiment primarily focuses on a scenario where the in-vehicle central control unit 100 and the tire pressure sensor 200 are communicating.

[0027] During communication, a communication message is formed by packaging the timestamp, encryption check code, target tire pressure sensor ID, and detection command in a standardized format. This communication message is then sent to the target tire pressure sensor to obtain its detection signal.

[0028] The two-way communication protocol also specifies the communication frequency band and the backup frequency band. The communication frequency band can be 315MHz / 433MHz. The backup frequency band can be 868MHz or Bluetooth BLE. The backup frequency band is mainly used to avoid co-channel interference. Different backup frequency bands have different priorities, and switching can be performed according to priority during subsequent switching operations.

[0029] The detection signal needs to be sent periodically so that the tire pressure sensor can periodically provide feedback on the tire pressure data based on the detection signal. In this way, the communication status between the vehicle's central control system and the tire pressure sensor can be continuously checked during the daily acquisition of tire pressure data to ensure that the communication is normal.

[0030] Step S200: When tire pressure data fed back from the tire pressure sensor is lost, a verification command is sent to the tire pressure sensor through a verification process.

[0031] Loss of tire pressure data from the tire pressure sensor means that after sending a detection signal to the tire pressure sensor, no feedback tire pressure data is received within the timeout period. In this case, it will be determined that the tire pressure data is lost.

[0032] As an example, it can be set that data loss is only determined when no tire pressure data is received from the tire pressure sensor after a certain number of consecutive times. For example, if no tire pressure data is received within 3 seconds after the detection signal is sent three times in a row, then the tire pressure sensor is determined to be faulty.

[0033] There are many possible reasons why the tire pressure sensor might not provide feedback. For example, signal interference could prevent the sensor from receiving the detection command, interference could prevent the feedback of tire pressure data, or there could be an internal problem with the tire pressure sensor, causing it to malfunction and fail to provide feedback. These different fault scenarios are the causes of the faults that require accurate detection in this embodiment.

[0034] Therefore, upon detecting a fault, communication is no longer conducted via the aforementioned two-way communication protocol. Instead, a dedicated verification process is initiated. To ensure that verification commands can be sent to the tire pressure sensor, the communication frequency band between the sensor and the sensor is changed upon entering the verification process. For example, communication may be switched to a broadcast frequency band. While this effectively avoids interference, it's necessary to consider the possibility of other unrelated devices receiving and processing the information. Therefore, the verification command includes a unique identifier that only the tire pressure sensor can recognize, and only the tire pressure sensor can respond to this unique identifier.

[0035] This allows diagnostic operations to be performed via broadcast frequency, ensuring that verification commands are sent to the tire pressure sensor.

[0036] Step S300: Determine the interference detection result of the tire pressure sensor based on the feedback status of the tire pressure sensor to the verification command.

[0037] After receiving the verification command, the tire pressure sensor will provide corresponding verification feedback, and the vehicle's central control system can determine its feedback status based on the verification feedback.

[0038] The feedback status includes the following branch situations. One is that the detection response result of the tire pressure sensor is obtained. This indicates that the tire pressure sensor itself is not faulty and can respond normally. However, it cannot communicate normally in the previous frequency band, which may be due to signal interference. In this case, it can be determined that the previous loss of tire pressure data was due to external signal interference. As to which external devices are interfering, special investigation and identification are required.

[0039] Another scenario is that if no response is received from the tire pressure sensor after a preset time, the tire pressure sensor is determined to be faulty. Since this verification process transmits information via broadcast, the verification command should be able to be sent to the tire pressure sensor, so the lack of feedback indicates a problem with the tire pressure sensor.

[0040] Thus, the tire pressure interference handling method of this embodiment can determine the cause of data loss through a dedicated verification process when tire pressure data is lost.

[0041] In response to the two reasons mentioned above, this embodiment also provides corresponding solutions.

[0042] If the external signal interference is determined to be the cause, the communication frequency band is switched to a preset backup frequency band.

[0043] Since it is external signal interference, it can be avoided by switching the communication frequency band. The backup frequency band is defined in the aforementioned two-way communication protocol, so it can be switched directly.

[0044] Monitor the communication quality of the backup frequency band after the switch, determine whether there is external signal interference on the backup frequency band, and if so, continue the switch; otherwise, use the backup frequency band.

[0045] After the switch, the operations of steps S100 and S200 in this embodiment will also be performed to determine whether there is still external interference. If there is still external interference, the switch to the backup frequency band will continue. If the tire pressure data can be received stably after the switch, there is no need to switch.

[0046] Meanwhile, for external signal interference, the source of the interference can be determined by analyzing the signal strength. External interference generally originates from other devices inside the vehicle, such as ambient lighting and other devices that communicate wirelessly with the vehicle's central control system. The communication frequency band of these devices may be close to that of the tire pressure sensor, causing interference. Therefore, signal strength analysis can be used to analyze the signal strength of the frequency band where external interference occurs, and then the frequency band of the interference source can be calculated. Once the frequency band of the interference source is determined, the device causing the signal interference can be identified, thus providing the user with certain repair tips.

[0047] Once the source of interference is located, a notification can be pushed via the in-vehicle display or a mobile app. Simultaneously, signal strength analysis can assist the user in locating the interference source, such as ambient lighting or car chargers. After being notified of the interference source, the user can selectively turn off these devices, thereby reducing interference.

[0048] Therefore, in the event of external interference, this embodiment can ensure that interference can be avoided quickly and effectively by dynamically switching frequency bands. It can also locate the source of interference and provide corresponding prompts after locating the source, so that users can realize the cause of the interference and make manual adjustments to prevent similar situations from happening again.

[0049] In the case of sensor failure, a fault code will be triggered. The fault code is an automatic error code that is reported when the sensor encounters a fault. It is usually found in the log. When judging the scenario of sensor failure, the fault code can be directly obtained to determine the type of fault.

[0050] There are several different types of faults.

[0051] One scenario is when the battery is depleted. In this case, the vehicle's central control system will send a low-power sleep command to the tire pressure sensor. At this time, the tire pressure sensor needs to be charged or the battery replaced. The vehicle cannot automatically repair this situation while it is driving on the road. Therefore, the tire pressure sensor can be put into a low-power state to extend its service life.

[0052] In one scenario, if there is a continuous lack of response, the corresponding warning light will be triggered, and a text warning will be displayed on the vehicle's display screen. It's understandable that a continuous lack of response often indicates that the sensor is severely damaged and requires manual intervention for repair. Once this condition is confirmed, sending detection signals to the sensor can generally be stopped, and a warning will be issued regarding this severe damage.

[0053] Another scenario is intermittent data loss. In this case, a text prompt will be displayed on the vehicle's screen. Intermittent data loss manifests as data being received intermittently, unlike the continuous unresponsiveness mentioned above. For example, a relatively long timeframe can be set for continuous unresponsiveness. If no response is received within one minute, it is considered continuous unresponsiveness. If feedback is received intermittently within one minute, it is considered intermittent data loss.

[0054] If data loss is occasional, it can be assumed that the tire pressure sensor does not have a major problem and can still be used. Therefore, a text message can be displayed on the vehicle's screen to inform the user that there is a tire pressure sensor with a minor fault, so that the user can know about the fault and have time to have it repaired.

[0055] The tire pressure interference handling method in this embodiment sends detection signals to the tire pressure sensor periodically through a preset two-way communication protocol. When tire pressure data from the tire pressure sensor is lost, a verification command is sent to the tire pressure sensor through a verification process. The detection result of the tire pressure sensor is determined based on its feedback status. In the verification process, verification communication is performed via the master frequency. Whether or not feedback is received determines the cause of the tire pressure sensor malfunction. Then, corresponding repairs or emergency measures can be taken based on the specific cause of the malfunction, thereby ensuring the stability of each system.

[0056] Figure 3 A schematic diagram of a tire pressure disturbance handling device according to an embodiment of this application is shown. Exemplarily, the device includes: The tire pressure monitoring module 10 is used to send detection signals to the tire pressure sensor at regular intervals via a preset two-way communication protocol. The sensor detection module 20 is used to send a verification command to the tire pressure sensor through a verification process when the tire pressure data fed back from the tire pressure sensor is lost. The identification module detection module 30 is used to determine the detection result of the tire pressure sensor based on the feedback status of the tire pressure sensor.

[0057] It is understood that the apparatus of this embodiment corresponds to the method of the above embodiments, and the options in the above embodiments are also applicable to this embodiment, so they will not be described again here.

[0058] The processor can be an integrated circuit chip with signal processing capabilities. The processor can be a general-purpose processor, including at least one of a Central Processing Unit (CPU), Graphics Processing Unit (GPU), Network Processor (NP), Digital Signal Processor (DSP), Application-Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0059] The memory can be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. The memory is used to store computer programs, and the processor can execute the computer programs accordingly after receiving execution instructions.

[0060] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that, in alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0061] In addition, the functional modules or units in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0062] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a smartphone, personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0063] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A method for handling tire pressure disturbances, characterized in that, include: The system sends detection signals to the tire pressure sensor periodically via a pre-defined two-way communication protocol. When tire pressure data from the tire pressure sensor is lost, a verification command is sent to the tire pressure sensor through a verification process. Based on the feedback status of the tire pressure sensor to the verification command, the interference detection result of the tire pressure sensor is determined; Determining the tire pressure sensor's detection result based on its feedback status includes: If the feedback state of the tire pressure sensor is: obtain the detection response result of the tire pressure sensor, then it is determined to be external signal interference; If the feedback status of the tire pressure sensor is: no detection response result is obtained from the tire pressure sensor after a preset time, then the tire pressure sensor is determined to be faulty. If the external signal interference is determined to be the cause, the current communication frequency band is switched to the preset backup frequency band. Monitor the communication quality of the backup frequency band after the switch, and determine whether the external signal interference still exists on the backup frequency band. If it exists, continue the switch; if it does not exist, use the backup frequency band. If the tire pressure sensor is determined to be faulty, the fault code of the tire pressure sensor is obtained, the fault level and fault type are determined based on the fault code, and alarm measures are taken according to the fault level. If the fault type is power depletion, a low-power sleep command is sent to the tire pressure sensor; If the fault type is continuous no response, the corresponding warning light will be triggered and the corresponding text warning will be displayed on the vehicle display screen; If the fault type is intermittent data loss, a text prompt will be displayed on the vehicle's in-vehicle display screen.

2. The tire pressure interference handling method according to claim 1, characterized in that, Also includes: If the external signal interference is determined, the source of the interference is determined by the signal strength. The interference source is pushed to the vehicle display screen to prompt the user to deal with the interference source.

3. The tire pressure interference handling method according to claim 1, characterized in that, The method of periodically sending detection signals to the tire pressure sensor via a preset two-way communication protocol includes: The timestamp, encrypted check code, unique identifier of the target tire pressure sensor, and detection instructions are packaged in a standardized format to form a communication message. The communication message is sent to the target tire pressure sensor according to the communication frequency band of the tire pressure sensor.

4. The tire pressure interference treatment method according to claim 1, characterized in that, When tire pressure data from the tire pressure sensor is lost, a verification command is sent to the tire pressure sensor through a verification process, including: If no tire pressure data is received from the tire pressure sensor for a preset number of consecutive times, it is determined that the tire pressure sensor signal is lost. The communication frequency band of the tire pressure sensor is adjusted to the broadcast frequency band, and then a verification command is sent to the tire pressure sensor through the broadcast frequency band. The verification command includes unique identification information, which can only be recognized and responded to by the tire pressure sensor.

5. A tire pressure interference treatment device, which performs the tire pressure interference treatment method as described in any one of claims 1 to 4, characterized in that, include: The tire pressure monitoring module is used to send detection signals to the tire pressure sensor at set intervals via a preset two-way communication protocol. The sensor detection module is used to send a verification command to the tire pressure sensor through a verification process when the tire pressure data fed back from the tire pressure sensor is lost. The identification module detection module is used to determine the interference detection result of the tire pressure sensor based on the feedback status of the tire pressure sensor to the verification command.

6. A terminal device, characterized in that, The terminal device includes a processor and a memory, the memory storing a computer program, and the processor executing the computer program to implement the tire pressure interference processing method according to any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, It stores a computer program, which, when executed on a processor, implements the tire pressure interference handling method according to any one of claims 1-4.

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