Tire pressure sensor, tire pressure data processing method, vehicle and medium
By introducing a storage module into the tire pressure sensor, the function of reading tire pressure data through an external interface when the vehicle memory cannot be read, solving the problem of not being able to analyze tire pressure data, and improving the accuracy and reliability of vehicle safety monitoring.
Patent Information
- Application Number
- CN202411914856.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-12-24
AI Technical Summary
When the vehicle's memory cannot be read, the tire pressure data cannot be analyzed, resulting in the inability to detect possible safety hazards in the vehicle in a timely manner.
A tire pressure sensor is designed, including an acquisition module and a storage module. The acquisition module is used to monitor tire pressure data in real time. The storage module includes a receiving unit, a storage unit and an interface unit, which can read the stored effective tire pressure data through an external interface when the memory cannot be read.
When the vehicle memory cannot be read, tire pressure data is accessed and read through the external interface of the tire pressure sensor, ensuring that the tire pressure data can be analyzed in a timely manner, and improving the accuracy and reliability of vehicle safety monitoring.
Smart Images

Figure CN119659221A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of tire pressure monitoring of vehicles, and in particular to a tire pressure sensor, a method for processing tire pressure data, a vehicle and a medium. Background Art
[0002] With the rapid development of society, the number of cars is increasing day by day. Tire pressure is an important parameter indicator of vehicles. For example, tire pressure affects the performance of vehicles. Insufficient tire pressure will lead to increased fuel consumption and accelerated tire wear. When the tire pressure is too high, the contact area between the tire and the ground will be reduced, resulting in reduced tire grip and potential driving safety hazards.
[0003] To ensure the reliability of vehicle tire pressure, existing tire pressure sensors are usually used to monitor the air pressure and temperature of vehicle tires, that is, to collect data and forward it. When the vehicle's memory cannot be read, the tire pressure data monitored by the tire pressure sensor cannot be analyzed to find possible safety hazards of the vehicle. Summary of the invention
[0004] In view of this, the embodiments of the present application provide a tire pressure sensor, a tire pressure data processing method, a vehicle and a medium, which can effectively solve the problem that the tire pressure data cannot be analyzed when the vehicle's memory cannot be read.
[0005] In a first aspect, an embodiment of the present application provides a tire pressure sensor, including a collection module and a storage module;
[0006] The acquisition module is used to monitor the real-time tire pressure data of multiple tires of the vehicle in different driving modes in real time;
[0007] The storage module includes a receiving unit, a storage unit and an interface unit; the receiving unit is used to receive the real-time tire pressure data of multiple tires at a preset frequency, and store the real-time tire pressure data at the preset frequency and the corresponding characteristic data as valid tire pressure data in the storage unit; the interface unit is used to provide an external interface of the tire pressure sensor for reading the valid tire pressure data of the storage unit.
[0008] In some embodiments, the storage module further includes an encryption unit;
[0009] The encryption unit is used to encrypt the effective tire pressure data and store the encrypted data in the storage unit.
[0010] In some embodiments, the encrypting the valid tire pressure data includes:
[0011] Processing each of the valid tire pressure data to obtain a preset number of byte data;
[0012] Based on preset rules, all the byte data are processed to obtain tire pressure encrypted data.
[0013] In some embodiments, the step of processing all the byte data based on a preset rule to obtain tire pressure encrypted data includes:
[0014] When the preset rule is to swap high and low bits, each byte of data is reversely arranged to obtain the tire pressure encrypted data.
[0015] In some embodiments, the step of processing all the byte data based on a preset rule to obtain tire pressure encrypted data includes:
[0016] When the preset rule is data inversion, each byte of data is inverted to obtain the tire pressure encrypted data.
[0017] In some embodiments, the storage module further includes a management unit;
[0018] The management unit is used to process the valid tire pressure data according to the timestamp and tire pressure sensor ID corresponding to each valid tire pressure data, and store all the valid tire pressure data in the storage unit in sequence according to the processing result.
[0019] In some embodiments, the processing of the valid tire pressure data according to the timestamp and tire pressure sensor ID corresponding to each valid tire pressure data includes:
[0020] Obtaining a tire pressure sensor ID and a timestamp in each of the valid tire pressure data;
[0021] Determine a sorting result of all the valid tire pressure data according to a timestamp of each of the valid tire pressure data;
[0022] The sorting result is adjusted based on the tire pressure sensor ID of all the valid tire pressure data to obtain the processing result.
[0023] In a second aspect, an embodiment of the present application provides a method for processing tire pressure data, which is applied to the above tire pressure sensor, and the method includes:
[0024] Monitor the real-time tire pressure data of multiple tires of the vehicle under different driving modes;
[0025] Receiving the real-time tire pressure data of multiple tires at preset frequency points;
[0026] The real-time tire pressure data and corresponding characteristic data of each tire at the preset frequency point are stored in the storage module as effective tire pressure data; the effective tire pressure data can be used to be read by an external device through the external interface of the tire pressure sensor.
[0027] In a third aspect, an embodiment of the present application provides a vehicle, wherein a tire pressure sensor as described above is disposed in each wheel of the vehicle, and the tire pressure sensor is used to implement the above-mentioned tire pressure data processing method.
[0028] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, which, when executed on a processor, implements the above-mentioned tire pressure data processing method.
[0029] The embodiments of the present application have the following beneficial effects:
[0030] Compared with the existing tire pressure sensors which only have the functions of monitoring and forwarding, the tire pressure sensor of the present application also has a built-in storage module, which can store the tire pressure data monitored by itself and the tire pressure data monitored by other tire pressure sensors; the tire pressure data stored in the tire pressure sensor can meet the user's viewing needs through the tire pressure sensor when the vehicle's memory cannot be viewed, thereby enabling the tire pressure data to be analyzed in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0032] Figure 1 An application scenario diagram of a vehicle driving process in an embodiment of the present application is shown;
[0033] Figure 2 A schematic diagram of the first principle structure of a tire pressure sensor in an embodiment of the present application is shown;
[0034] Figure 3 A second principle structural diagram of a tire pressure sensor in an embodiment of the present application is shown;
[0035] Figure 4 A third principle structure schematic diagram of a tire pressure sensor in an embodiment of the present application is shown;
[0036] Figure 5 A fourth principle structure schematic diagram of a tire pressure sensor in an embodiment of the present application is shown;
[0037] Figure 6 A schematic diagram showing a process of a method for processing tire pressure data in an embodiment of the present application is shown;
[0038] Figure 7A flow chart showing encryption processing of effective tire pressure data in an embodiment of the present application is shown;
[0039] Figure 8 A flow chart showing the sorting process of valid tire pressure data in an embodiment of the present application is shown.
[0040] Description of main component symbols:
[0041] 10-acquisition module; 20-storage module; 21-receiving unit; 22-storage unit; 23-interface unit; 24-encryption unit; 25-management unit. DETAILED DESCRIPTION
[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.
[0043] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.
[0044] Hereinafter, the terms "including", "having" and their cognates that can be used in various embodiments of the present application are intended only to indicate specific features, numbers, steps, operations, elements, components or a combination of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or a combination of the foregoing items or increasing the possibility of one or more features, numbers, steps, operations, elements, components or a combination of the foregoing items. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.
[0045] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present application.
[0046] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0047] like Figure 1 Each tire of vehicle A and vehicle B shown in the figure is equipped with a built-in tire pressure sensor. The arrow in the figure indicates the driving direction. The current tire pressure sensors have deficiencies in data collection and storage, especially the data recording and safe storage under different driving modes. A new tire pressure sensor is proposed. The new tire pressure sensor has an additional storage function, which can store the effective tire pressure data of multiple tires, and when the effective tire pressure data needs to be viewed, the effective tire pressure data can be read through the external interface of the tire pressure sensor.
[0048] The tire pressure sensor is described below in conjunction with some specific embodiments.
[0049] Figure 2 A schematic diagram of the structure of a tire pressure sensor according to an embodiment of the present application is shown. Exemplarily, the tire pressure sensor includes a collection module 10 and a storage module 20.
[0050] In this embodiment, the acquisition module 10 is used to monitor the real-time tire pressure data of multiple tires in different driving modes of the vehicle, such as the stop mode, the stop leakage mode, the start leakage mode, the driving mode, the driving leakage mode, the pause mode and the pause leakage mode. Figure 1 The first tire pressure sensor of vehicle A monitors the real-time tire pressure data of wheel A1, the second tire pressure sensor monitors the real-time tire pressure data of wheel A2, the third tire pressure sensor monitors the real-time tire pressure data of wheel A3, and the fourth tire pressure sensor monitors the real-time tire pressure data of wheel A4 in real time. The fifth tire pressure sensor of vehicle B monitors the real-time tire pressure data of wheel B1, the sixth tire pressure sensor monitors the real-time tire pressure data of wheel B2, the seventh tire pressure sensor monitors the real-time tire pressure data of wheel B3, and the eighth tire pressure sensor monitors the real-time tire pressure data of wheel B4 in real time. Each tire pressure sensor will automatically forward the collected real-time tire pressure data to be received and stored by the built-in storage unit of other tire pressure sensors and the memory of the vehicle.
[0051] In this embodiment, the real-time tire pressure data includes data such as air pressure, temperature, speed, etc., and the characteristic data includes a timestamp corresponding to the tire pressure data, a tire pressure sensor ID, etc.
[0052] In this embodiment, the storage module 20 includes a receiving unit 21 , a storage unit 22 and an interface unit 23 .
[0053] The receiving unit 21 receives the real-time tire pressure data of multiple tires at a preset frequency, and stores the real-time tire pressure data at the preset frequency and the corresponding characteristic data as effective tire pressure data to the storage unit 22; Figure 1As shown, the receiving unit 21 theoretically receives the real-time tire pressure data of three or four tires corresponding to the vehicle A. However, in practice, since the adjacent vehicle B runs side by side with the vehicle A for a certain period of time, each receiving unit 21 of the vehicle A may also receive the real-time tire pressure data of the adjacent vehicle B. For example, the receiving unit 21 of the wheel A4 may not only receive the real-time tire pressure data of the wheel A1, the wheel A2, the wheel A3, and the wheel A4, but may also receive the real-time tire pressure data of the wheel B1 and the wheel B3.
[0054] The real-time tire pressure data of this embodiment includes data such as air pressure, temperature, speed, etc., and the characteristic data includes the timestamp corresponding to the real-time tire pressure data, the tire pressure sensor ID, etc. In other words, each real-time tire pressure data will correspond to a set of characteristic data. The real-time tire pressure data of multiple tires at the preset frequency points received by the receiving unit 21 and the corresponding characteristic data are stored together in the storage unit 22 as effective tire pressure data. For example, the preset frequency points include 315MHz and 433.92MHz. The wireless frequency corresponding to the preset frequency points can ensure that the tire pressure sensor and the receiving unit of the vehicle can communicate effectively and avoid interference from other wireless devices.
[0055] The interface unit 23 is used to provide an external interface for the storage module 20 so that the user can read the effective tire pressure data of the storage unit 22. When the problem needs to be diagnosed, the vehicle's memory cannot be used. At this time, the user or technician can access the effective tire pressure data in the storage module 20 through the external interface of the tire pressure sensor. The external interface provides data query, decryption and reading functions to quickly diagnose and locate the problem.
[0056] In this embodiment, Figure 3 or Figure 5 As shown, the storage module 20 also includes an encryption unit 24; the encryption unit is used to encrypt the valid tire pressure data and store it in the storage unit 22 after encryption. The process of encrypting the valid tire pressure data is as follows: firstly, each valid tire pressure data is processed to obtain a preset number of byte data; then, based on a preset rule, all byte data are processed to obtain tire pressure encrypted data. The encrypted valid tire pressure data can prevent unauthorized access, thereby ensuring the security and privacy of the valid tire pressure data.
[0057] Each valid tire pressure data is processed to obtain a preset number of hexadecimal byte data, which are P0, P1, P2, ..., P16. For example, a valid tire pressure data is 84FF C6 08 11 22 33 44 5655 69.
[0058] When the preset rule is to swap high and low bits, each byte of data is reversely arranged to obtain the tire pressure encrypted data. For example, first convert the hexadecimal byte data 84 into binary 10000100, and then reversely arrange each byte data into 00100001. The binary 00100001 is then converted into hexadecimal to obtain the hexadecimal byte ciphertext data 21. By analogy, the byte data FF is reversely arranged to obtain the byte ciphertext data FF, the byte data C6 is reversely arranged to obtain the byte ciphertext data 63, the byte data 08 is reversely arranged to obtain the byte ciphertext data 10, the byte data 11 is reversely arranged to obtain the byte ciphertext data 88, the byte data 22 is reversely arranged to obtain the byte ciphertext data 44, the byte data 33 is reversely arranged to obtain the byte ciphertext data CC, the byte data 44 is reversely arranged to obtain the byte ciphertext data 22, the byte data 56 is reversely arranged to obtain the byte ciphertext data 6A, the byte data 55 is reversely arranged to obtain the byte ciphertext data AA, and the byte data 69 is reversely arranged to obtain the byte ciphertext data 96; all the byte ciphertext data are encapsulated to form the tire pressure encrypted data 21FF 63 10 88 44CC 22 6A AA 96.
[0059] When the preset rule is data inversion, each byte of data is inverted to obtain the tire pressure encrypted data. For example, first convert the hexadecimal byte data 84 into binary 10000100, and then invert each byte data to 01111011. The binary 01111011 is then converted into hexadecimal to obtain the hexadecimal byte ciphertext data 7B. By analogy, the byte data FF is inverted to obtain the byte ciphertext data 00, the byte data C6 is inverted to obtain the byte ciphertext data 39, the byte data 08 is inverted to obtain the byte ciphertext data F7, the byte data 11 is inverted to obtain the byte ciphertext data EE, the byte data 22 is inverted to obtain the byte ciphertext data DD, the byte data 33 is inverted to obtain the byte ciphertext data CC, the byte data 44 is inverted to obtain the byte ciphertext data BB, the byte data 56 is inverted to obtain the byte ciphertext data A9, the byte data 55 is inverted to obtain the byte ciphertext data AA, and the byte data 69 is inverted to obtain the byte ciphertext data 96; all the byte ciphertext data are encapsulated to form the tire pressure encrypted data 7B00 39F7 EE DD CC BB A9 AA 96.
[0060] In this embodiment, Figure 4 or Figure 5As shown, the storage module 20 also includes a management unit 25; the management unit 25 is used to process the valid tire pressure data according to the timestamp and tire pressure sensor ID corresponding to each valid tire pressure data, and store all the valid tire pressure data in the storage unit 22 in sequence according to the processing result. Among them, the process of processing the valid tire pressure data according to the timestamp and tire pressure sensor ID corresponding to each valid tire pressure data includes: first obtaining the tire pressure sensor ID and timestamp in each valid tire pressure data; then determining the sorting result of all valid tire pressure data according to the timestamp of each valid tire pressure data; and finally adjusting the sorting result based on the tire pressure sensor ID of all valid tire pressure data to obtain the processing result. The timestamp, i.e., the timeliness of the valid tire pressure data, ensures that the latest or newer valid tire pressure data can be processed first, and then the sorting order of the valid tire pressure data is adjusted according to the tire pressure sensor ID, i.e., the importance, so as to realize the management and storage of the valid tire pressure data.
[0061] For example, if a large amount of data is received within a certain period of time, the latest valid tire pressure data is processed first according to the timestamp, and then the valid tire pressure data is judged to be the valid tire pressure data of a similar tire pressure sensor by whether the first two bytes of the tire pressure sensor ID in the latest valid tire pressure data are the same. For example, the tire pressure sensor ID is generally 24, 28 or 32 bits. The first two bytes of the tire pressure sensor ID are generally the same, which can be understood as the first two of 1234567 1278908 2345678 are the same, so the two tire pressure sensor IDs corresponding to the first two values are similar tire pressure sensor IDs. Then the third one may be the tire pressure sensor ID of a tire of an adjacent vehicle.
[0062] This embodiment manages the effective tire pressure data, and can check whether the effective tire pressure data is abnormal in different driving modes of the car; compared with the storage chip of the existing vehicle that does not judge whether the received data is abnormal, the management of this application can facilitate technicians to check the effective tire pressure data in the tire pressure sensor, so as to locate the problem; at the same time, it is also convenient for the development of tire pressure sensors and enhance the functions of vehicles.
[0063] The storage module 20 has a certain storage space and can store valid tire pressure data for a period of time. To ensure the effective use of the storage module 20, the valid tire pressure data in the storage module 20 is cleared regularly (for example, monthly), deleting old data to store new data.
[0064] The tire pressure sensor of this embodiment can effectively collect and store effective tire pressure data of the tire pressure sensor under different driving conditions, improving the accuracy and reliability of automobile safety monitoring. At the same time, the encrypted storage and intelligent management of data further improve the security of data, providing strong support for automobile maintenance and problem diagnosis.
[0065] Figure 6 A schematic flow chart of a method for processing tire pressure data according to an embodiment of the present application is shown. Exemplarily, the method for processing tire pressure data is applied to the tire pressure sensor described above, and the method includes:
[0066] S100, monitoring real-time tire pressure data of multiple tires of the vehicle in different driving modes.
[0067] In this embodiment, the monitored real-time tire pressure data includes data such as air pressure, temperature, speed, etc., and the characteristic data includes the timestamp corresponding to the tire pressure data, the tire pressure sensor ID, etc.
[0068] S200, receiving real-time tire pressure data of multiple tires at preset frequency points.
[0069] The preset frequencies of this embodiment include 315 MHz and 433.92 MHz. Receiving real-time tire pressure data at the preset frequencies can ensure effective communication between the tire pressure sensor and the receiving unit of the vehicle and avoid interference from other wireless devices.
[0070] S300, storing the real-time tire pressure data of each tire at a preset frequency and the corresponding characteristic data as effective tire pressure data in a storage module of the tire pressure sensor.
[0071] In this embodiment, each valid tire pressure data may be directly stored in the storage module of the tire pressure sensor, or may be encrypted or sorted before being stored in the storage module of the tire pressure sensor.
[0072] If the effective tire pressure data is encrypted, Figure 7 As shown, the encryption process includes:
[0073] S310, processing each valid tire pressure data to obtain a preset number of bytes of data.
[0074] S320, based on preset rules, all byte data are processed to obtain tire pressure encrypted data.
[0075] When the preset rule is to swap high and low bits, each byte of data is reversely arranged to obtain the tire pressure encrypted data.
[0076] When the preset rule is data inversion, each byte of data is inverted to obtain the tire pressure encrypted data.
[0077] When sorting the valid tire pressure data, such as Figure 8 As shown, the encryption process includes:
[0078] S340, obtaining a tire pressure sensor ID and a timestamp in each valid tire pressure data.
[0079] S350: Determine a sorting result of all valid tire pressure data according to the timestamp of each valid tire pressure data.
[0080] S360: Adjust the sorting result based on the tire pressure sensor IDs of all valid tire pressure data to obtain a processing result.
[0081] In this embodiment, the valid tire pressure data are sorted according to the timestamp and tire pressure sensor ID corresponding to each valid tire pressure data, and all valid tire pressure data are sequentially stored in the storage unit according to the processing result of the sorting process.
[0082] S400, effective tire pressure data is read out through an external interface of the tire pressure sensor.
[0083] This embodiment provides a backup hardware interface for users or technicians to view valid tire pressure data through the external interface of the tire pressure sensor. The external interface provides data query, decryption and reading functions, so that when the vehicle's memory cannot be used, users or technicians can access and view valid tire pressure data through the external interface of the tire pressure sensor.
[0084] It can be understood that the tire pressure sensor of this embodiment corresponds to the structure and principle of the tire pressure sensor of the above embodiment, and the optional items in the above embodiment are also applicable to this embodiment, so they will not be repeated here.
[0085] The present application also provides a vehicle. Exemplarily, a tire pressure sensor as described above is disposed in each wheel of the vehicle, and the tire pressure sensor implements the tire pressure data processing method as described above.
[0086] Among them, the processor can be an integrated circuit chip with signal processing capabilities. The processor can be a general-purpose processor, including a central processing unit (CPU), a graphics processing unit (GPU) and a network processor (NP), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or at least one of other programmable logic devices, discrete gates or transistor logic devices, and discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc., which can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present application.
[0087] The memory may be, but is not limited to, a random access memory (RAM), a read only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), etc. The memory is used to store a computer program, and the processor may execute the computer program accordingly after receiving an execution instruction.
[0088] The present application also provides a computer-readable storage medium for storing the computer program used in the above-mentioned vehicle. For example, the computer-readable storage medium may include, but is not limited to, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
[0089] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and structure diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in an alternative implementation, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the structure diagram and / or the flow diagram, and the combination of boxes in the structure diagram and / or the flow diagram, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.
[0090] In addition, the functional modules or units in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
[0091] If the functions are implemented in the form of software function 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 the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application.
[0092] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.
Claims
1. A tire pressure sensor, characterized in that: It includes an acquisition module and a storage module; The acquisition module is used to monitor the real-time tire pressure data of multiple tires of the vehicle in different driving modes in real time; The storage module includes a receiving unit, a storage unit and an interface unit; the receiving unit is used to receive the real-time tire pressure data of multiple tires at a preset frequency, and store the real-time tire pressure data at the preset frequency and the corresponding characteristic data as valid tire pressure data in the storage unit; the interface unit is used to provide an external interface of the tire pressure sensor for reading the valid tire pressure data of the storage unit.
2. The tire pressure sensor according to claim 1, characterized in that: The storage module also includes an encryption unit; The encryption unit is used to encrypt the effective tire pressure data and store the encrypted data in the storage unit.
3. The tire pressure sensor according to claim 2, characterized in that: The encrypting process of the effective tire pressure data includes: Processing each of the valid tire pressure data to obtain a preset number of byte data; Based on preset rules, all the byte data are processed to obtain tire pressure encrypted data.
4. The tire pressure sensor according to claim 3, characterized in that: The step of processing all the byte data based on the preset rules to obtain the tire pressure encrypted data includes: When the preset rule is to swap high and low bits, each byte of data is reversely arranged to obtain the tire pressure encrypted data.
5. The tire pressure sensor according to claim 3, characterized in that: The step of processing all the byte data based on the preset rules to obtain the tire pressure encrypted data includes: When the preset rule is data inversion, each byte of data is inverted to obtain the tire pressure encrypted data.
6. The tire pressure sensor according to claim 1, characterized in that: The storage module also includes a management unit; The management unit is used to process the valid tire pressure data according to the timestamp and tire pressure sensor ID corresponding to each valid tire pressure data, and store all the valid tire pressure data in the storage unit in sequence according to the processing result.
7. The tire pressure sensor according to claim 6, characterized in that: The processing of the valid tire pressure data according to the timestamp and tire pressure sensor ID corresponding to each valid tire pressure data includes: Obtaining a tire pressure sensor ID and a timestamp in each of the valid tire pressure data; Determine a sorting result of all the valid tire pressure data according to the timestamp of each of the valid tire pressure data; The sorting result is adjusted based on the tire pressure sensor ID of all the valid tire pressure data to obtain the processing result.
8. A method for processing tire pressure data, characterized in that: Applied to the tire pressure sensor according to any one of claims 1 to 7, the method comprising: Monitor the real-time tire pressure data of multiple tires of the vehicle under different driving modes; Receiving the real-time tire pressure data of multiple tires at preset frequency points; The real-time tire pressure data and corresponding characteristic data of each tire at the preset frequency point are stored in the storage module as effective tire pressure data; the effective tire pressure data can be used to be read by an external device through the external interface of the tire pressure sensor.
9. A vehicle, characterized in that: A tire pressure sensor as described in any one of claims 1 to 7 is arranged in each wheel of the vehicle, and the tire pressure sensor is used to implement the tire pressure data processing method as described in claim 8.
10. A computer-readable storage medium, characterized in that: The computer program is stored therein, and when the computer program is executed on a processor, the method for processing tire pressure data according to claim 8 is implemented.
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