Tire pressure sensor determination method, terminal equipment and storage medium

Abstract

The invention is applicable to the technical field of automotive electronics, and provides a tire pressure sensor determination method, terminal equipment and a storage medium, when a sensor of a target tire of a vehicle is activated, a first signal is sent at different transmitting powers; receiving at least one second signal corresponding to the first signal under each transmitting power; wherein each second signal is a response signal sent by one first sensor according to the first signal; the first sensor is a sensor on any tire of the vehicle; and determining the sensor on the target tire from the at least one first sensor according to the transmitting power and the signal strength of the second signal under each transmitting power. According to the method, a traditional extensive mode which only depends on single-time signal receiving or isolation is abandoned, the target sensor can be effectively determined through double analysis of different transmitting powers and signal intensity values, and the problem of tire crossing activation is fundamentally solved.

Description

Technical Field

[0001] This application belongs to the field of automotive electronics technology, and in particular relates to a tire pressure sensor determination method, terminal device and storage medium. Background Technology

[0002] In automotive maintenance, a TPMS activation tool is used to emit a 125kHz low-frequency signal to wake up the sensors inside the tires. The sensors then respond with ID and data using a 315MHz / 433MHz high-frequency signal to complete the relevant operations.

[0003] However, existing mainstream activation methods are prone to "tire crosstalk activation" problems in scenarios where the four wheels of a vehicle are close together. This causes the tool to receive high-frequency signals from multiple sensors, resulting in ID recognition confusion and matching failure. Existing solutions mostly rely on physical isolation methods such as vehicle lifting and tool antennas being close to the target tires. This is not only inconvenient to operate, but also cannot fundamentally solve the signal crosstalk problem. Summary of the Invention

[0004] This application provides a method for determining tire pressure sensors, a terminal device, and a storage medium. This method abandons the traditional crude approach that relies solely on single signal reception or physical isolation. Through dual analysis of different transmission powers and signal strength values, it can effectively determine the target sensor, fundamentally solving the problem of tire cross-contamination activation.

[0005] In a first aspect, embodiments of this application provide a method for determining tire pressure using a tire pressure sensor, including: When the sensor of the target tire of the vehicle is activated, a first signal is sent with a different transmission power; Receive at least one second signal corresponding to a first signal at each transmission power; wherein each second signal is a response signal sent by a first sensor according to the first signal; the first sensor is a sensor on any one of the tires of the vehicle; The sensor on the target tire is determined from at least one first sensor based on the transmission power and the signal strength of the second signal at each transmission power.

[0006] In this embodiment, an activation signal is first sent to the target sensor corresponding to the target tire at different transmission powers. Then, the first signal strength values ​​of the first sensors (including the target sensor and adjacent tire sensors) that respond to the signals are collected at each power level. Finally, the target sensor is determined from these sensors by combining the transmission power and the first signal strength values. This method abandons the traditional crude approach that relies solely on a single signal reception or physical isolation. Through dual analysis of different transmission powers and signal strength values, the target sensor can be effectively determined, fundamentally solving the problem of tire crossover activation.

[0007] In one possible implementation of the first aspect, transmitting the first signal at different transmit powers includes: Obtain the first power; Using the first power as a reference, the power value is increased sequentially to obtain at least one second power; The first signal is transmitted at a first power and each of the second powers respectively; wherein the transmission power includes the first power and the second power.

[0008] In this embodiment, using a first power as a baseline, the power value is sequentially increased to obtain at least one second power, enabling regular adjustment of the transmission power. By triggering power adjustment at a specific preset time, it can adapt to changes in communication requirements under different scenarios. The fixed preset step size ensures the stability and predictability of power adjustment, avoiding potential interference to the communication system caused by sudden power changes. This helps to reasonably control power consumption while meeting communication quality requirements, thereby improving the reliability and efficiency of system operation.

[0009] In one possible implementation of the first aspect, transmitting the first signal at a first power and each of the second powers respectively includes: At a preset position away from the target tire, a first signal is transmitted with a first power and a second power, respectively; wherein the preset position is less than the distance between the preset position and the target tire than the distance between the preset position and any other tire in the vehicle other than the target tire.

[0010] In this embodiment, the activation signal is sent to the target sensor with different transmission powers. First, the initial power is sent at the preset position closest to the target tire, and then the power is increased according to the rules. This can reduce interference to adjacent tire sensors by taking advantage of distance, and ensure stable activation of the target sensor by increasing the power, thus taking into account both the accuracy and reliability of activation.

[0011] In one possible implementation of the first aspect, determining the sensor on the target tire from at least one first sensor based on the transmission power and the signal strength of the second signal at each transmission power includes: For each transmission power, obtain the first signal strength of each second signal transmitted by each first sensor according to the first signal under the transmission power and the corresponding first reception time; Based on the first signal strength of each second signal transmitted by each first sensor and the corresponding first reception time, the second signal strength of the signal transmitted by the first sensor and the corresponding second reception time are determined. The sensors on the target tire are determined based on the second signal strength and second reception time corresponding to each first sensor.

[0012] In this embodiment, by finely collecting the intensity and reception time of the sensor response signal under each transmission power, optimizing and integrating core data, and combining dual indicators to determine the target sensor, the accuracy of target identification, environmental adaptability, and data reliability are improved simultaneously, effectively avoiding the risk of misjudgment by a single indicator, and ensuring the efficient and accurate activation of the target tire sensor in complex scenarios.

[0013] In one possible implementation of the first aspect, determining the second signal strength and corresponding second reception time of the signal transmitted by each first sensor based on the first signal strength and corresponding first reception time of the second signal transmitted by each first sensor includes: The average value of the first reception time corresponding to each second signal transmitted by the first sensor under the first signal at the first transmission power is calculated to obtain the second reception time corresponding to the signal transmitted by the first sensor; The average value of the first signal strength of the second signal transmitted by the first sensor based on the first signal at the first transmission power is calculated to obtain the second signal strength corresponding to the signal transmitted by the first sensor.

[0014] In this embodiment, by calculating the average reception time and average signal strength of all response signals of the same sensor at the corresponding transmission power, the core indicators of second reception time and second signal strength are determined, effectively filtering out instantaneous fluctuations and interference in the original data, improving the stability and reliability of the data, and providing high-quality data support for the accurate determination of the target sensor in the future.

[0015] In one possible implementation of the first aspect, determining the sensors on the target tire based on the second signal strength and second reception time corresponding to each first sensor includes: At least one first sensor is sorted according to the order of the second reception time corresponding to each first sensor to obtain a first arrangement order; At least one first sensor is sorted in descending order of the second signal strength corresponding to each first sensor to obtain a second arrangement order; The sensors on the target tire are determined based on the first and second arrangement orders.

[0016] In this embodiment, by sorting the sensors according to their response time and signal strength respectively, and then combining the two sorting results to determine the target sensor, dual cross-validation of "response speed" and "signal strength" is achieved, effectively avoiding the risk of misjudgment from a single sorting dimension, and significantly improving the accuracy and reliability of target tire sensor identification.

[0017] In one possible implementation of the first aspect, determining the sensors on the target tire according to a first arrangement order and a second arrangement order includes: The second sensor is determined according to the first arrangement order; wherein, the second sensor is the first sensor that is initially positioned in the first arrangement order. The third sensor is determined according to the second arrangement order; wherein, the third sensor is the first sensor in the initial position in the second arrangement order; If the second sensor is the same as the third sensor, then the second sensor or the third sensor is identified as the sensor on the target tire.

[0018] In this embodiment, by selecting the second sensor ranked first in response time and the third sensor ranked first in signal strength, if the two are the same, they are directly locked as the target sensor. This achieves accurate verification of dual core indicators, which simplifies the judgment logic, improves the recognition efficiency, and effectively avoids the risk of misjudgment from a single dimension, ensuring the accuracy and reliability of target tire sensor recognition.

[0019] In one possible implementation of the first aspect, the method further includes: After identifying the sensors on the target tire, record the identification of the sensors on the target tire; The system sends the identification information of the sensor on the target tire back to the user to indicate that the sensor on the target tire has been successfully activated.

[0020] In this embodiment of the application, by recording the sensor's identity and feeding it back to the user, the closed-loop management of sensor activation is completed, providing a reliable basis for subsequent data association and device management. It also intuitively prompts the user with the activation result, improving the user experience and trust in the user.

[0021] Secondly, this application provides a tire pressure sensor determining device, comprising: A signal activation module is used to send a first signal at different transmission powers when the sensor of the target tire of the vehicle is activated; A response signal receiving module is configured to receive at least one second signal corresponding to the first signal at each of the transmission powers; wherein each second signal is a response signal sent by a first sensor according to the first signal; the first sensor is a sensor on any one of the tires of the vehicle; A target sensor determination module is configured to determine the sensor on the target tire from at least one of the first sensors based on the transmission power and the signal strength of the second signal at each of the transmission powers.

[0022] Thirdly, embodiments of this application provide a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the tire pressure sensor determination method as described in any of the first aspects above.

[0023] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the tire pressure sensor determination method as described in any of the first aspects above.

[0024] Fifthly, embodiments of this application provide a computer program product that, when run on a terminal device, causes the terminal device to execute the tire pressure sensor determination method of any one of the first aspects described above.

[0025] It is understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic flowchart of the tire pressure sensor determination method provided in the embodiments of this application; Figure 2 This is a schematic diagram of the process of transmitting a first signal at different transmission powers according to an embodiment of this application; Figure 3 This is a schematic diagram of the process for determining the target tire sensor provided in the embodiments of this application. Figure 1 ; Figure 4 This is a schematic diagram of the process for determining the target tire sensor provided in the embodiments of this application. Figure 2 ; Figure 5 This is a schematic diagram of the process for determining the target tire sensor provided in the embodiments of this application. Figure 3 ; Figure 6 This is a structural block diagram of the tire pressure sensor determining device provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application. Detailed Implementation

[0028] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0029] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0030] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0032] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0034] In automotive maintenance, a TPMS activation tool is used to emit a 125kHz low-frequency signal to wake up the sensors inside the tires. The sensors then respond with ID and data using a 315MHz / 433MHz high-frequency signal to complete the relevant operations.

[0035] However, existing mainstream activation methods are prone to "tire crosstalk activation" problems in scenarios where the four wheels of a vehicle are close together. This causes the tool to receive high-frequency signals from multiple sensors, resulting in ID recognition confusion and matching failure. Existing solutions mostly rely on physical isolation methods such as vehicle lifting and tool antennas being close to the target tires. This is not only inconvenient to operate, but also cannot fundamentally solve the signal crosstalk problem.

[0036] To address the aforementioned technical problems, this application provides a tire pressure sensor determination method, terminal device, and storage medium. This application first sends a low-frequency activation signal with an initial power near the target tire, then gradually increases the transmission power according to preset time intervals and step sizes. At each power level, multiple signal strength values ​​from the responding sensors (including target and adjacent tire sensors) are collected and averaged, and the power and corresponding signal strength are correlated and recorded. Subsequently, by analyzing the signal response priority, average signal strength, and trend of power variation of each sensor, the sensor that "responds first and has the largest and stable signal strength" is identified as the target sensor, its identification is recorded, and feedback is given to the user. This fundamentally solves the problem of cross-tire activation interference, improving identification accuracy and operational efficiency.

[0037] See Figure 1 This is a schematic flowchart of the tire pressure sensor determination method provided in an embodiment of this application. It is intended as an example and not a limitation. The method may include the following steps: S101, when the sensor of the target tire of the vehicle is activated, sends a first signal with a different transmission power.

[0038] In the embodiments of this application, the "first signal" is a low-frequency activation signal (such as the 125KHz band) specifically used to wake up the sensor. Its function is to trigger the sensor in the target tire to switch from a dormant state to a working state, rather than a high-frequency signal fed back by the sensor.

[0039] The transmission power is not a fixed value, but rather forms a power sequence "from weak to strong" (or changes according to preset rules). For example, it is first transmitted with a lower initial power P0, and then gradually increased at preset steps (such as increasing a certain power value each time) and at preset times (such as fixed time intervals) to obtain multiple sets of different powers P1, P2...Pn (not exceeding the maximum allowable power), rather than transmitting with the highest power all at once.

[0040] In one embodiment, see Figure 2 This is a schematic diagram of the process of transmitting a first signal at different transmission powers according to an embodiment of this application, as shown below. Figure 2 As shown, step S101 includes: S201, obtain the first power.

[0041] In the embodiments of this application, a "reference transmit power" is first determined and named "first power" - it is the initial reference standard for all subsequent power adjustments, rather than a randomly selected power value.

[0042] In simple terms, the "first power" is the "starting power point" when activating the sensor: subsequent signals will not be transmitted directly with a fixed power, but will be adjusted to other transmission powers based on this benchmark value according to preset rules (such as gradual increase). It provides a unified initial reference for the entire multi-power activation process, ensuring the standardization and predictability of power changes.

[0043] For example, a default reference power value can be pre-written into the system (such as setting parameters based on the wake-up sensitivity of the target sensor, the average distance of common usage scenarios, etc.). For example, the first power can be directly set to 10dBm, and the preset value can be directly read as the reference when the activation process starts.

[0044] In another example, the corresponding reference power can be automatically matched based on the type of the target tire (e.g., passenger car tire, truck tire), the sensor model (the wake-up threshold may vary for different brands of sensors), or historical activation data. For example, for sensors with a high wake-up threshold, a preset high reference power (e.g., 15dBm) can be used; for close-range scenarios (e.g., tools close to the tire), a lower reference power (e.g., 5dBm) can be used.

[0045] S202, based on the first power, the power value is increased sequentially to obtain at least one second power.

[0046] In the embodiments of this application, the first power is the "starting point" and the second power is the "incremental level after the starting point" - for example, the first power (reference) is 8dBm, and by increasing by 2dBm each time according to the rules, the second power can be obtained as 10dBm, 12dBm, etc., forming a multi-level power sequence of "reference power → first-level incremental power → second-level incremental power...", which provides signal sources of different intensities for subsequent power-divided activation of the sensor.

[0047] For example, a fixed power increment (such as 2dBm or 3dBm) can be preset, and this increment can be repeatedly added based on the first power level until the preset maximum power limit is reached or the requirement of "at least one second power" is met. For example, if the first power is 10dBm, with a fixed step size of 2dBm, the first increment is 12dBm (the first second power). If more levels are needed, it can be added to get 14dBm (the second second power) until the maximum allowable power (such as 20dBm) is reached.

[0048] In another example, the power is increased by a fixed percentage (e.g., 10%, 20%) based on a first power level. For example, if the first power level is 10dBm and increases by 20%, the first second power level is 12dBm (10×1.2), and the second second power level is 14.4dBm (12×1.2), which is suitable for scenarios that require a smooth increase in power.

[0049] S203, transmit the first signal with a first power and each of the second powers respectively; wherein the transmission power includes the first power and the second power.

[0050] In this embodiment, the first power (reference transmission power) and all the subsequently generated second powers (powers obtained by incrementally increasing the reference power) are unified as an "effective transmission power set". Then, according to a preset order, the first signal (i.e., the low-frequency activation signal to wake up the sensor) is sent once for each power in the set, ensuring that each power level can independently complete a signal transmission and response monitoring.

[0051] For example, if the first power is 8dBm and the second power is 10dBm and 12dBm, then the transmission process is "transmit the first signal once at 8dBm → transmit the first signal once at 10dBm → transmit the first signal once at 12dBm". Each power corresponds to an independent transmission operation, and all the transmitted signals are the same type of first signal used to activate the sensor, only the signal strength (power) is different.

[0052] In the above method, using a first power as a baseline, the power value is increased sequentially to obtain at least one second power, enabling regular adjustment of the transmission power. By triggering power adjustment at a specific preset time, it can adapt to changes in communication requirements under different scenarios. The fixed preset step size ensures the stability and predictability of power adjustment, avoiding potential interference to the communication system caused by sudden power changes. This helps to reasonably control power consumption while meeting communication quality requirements, thereby improving the reliability and efficiency of system operation.

[0053] In one embodiment, step S203 includes: At a preset position away from the target tire, a first signal is transmitted with a first power and a second power, respectively; wherein the preset position is less than the distance between the preset position and the target tire than the distance between the preset position and any other tire in the vehicle other than the target tire.

[0054] In this embodiment of the application, a specific “preset position” is first selected (the distance between this position and the target tire is closer than the distance between it and all other tires of the vehicle). Then, at this fixed position, a first signal (low-frequency activation signal) for waking up the sensor is sent sequentially using a first power (reference power) and each second power (power incremented based on the reference).

[0055] Specifically, the vehicle design or tool instruction manual should clearly specify the preset position corresponding to each tire (such as 5-10 cm directly outside the target tire rim, or the outer position directly opposite the tire valve stem, etc.) to ensure that the position naturally meets the distance requirement of "closest to the target tire and farther from other tires", so that the user or operating equipment can directly locate it according to the marking.

[0056] Users or automated equipment first fix the launching tool in a preset position (e.g., a handheld tool is placed against a designated area of ​​the target tire, or a robotic arm is positioned at preset coordinates). After confirming that the position remains unchanged, the first power and the second power are switched sequentially according to the procedure to send the first signal. Throughout the entire launching process, the tool remains in the preset position and does not move, ensuring that the signal transmission distance of different power is consistent and avoiding the impact of position changes on the signal coverage.

[0057] In the above method, the activation signal is sent to the target sensor with different transmission powers. First, the initial power is sent at the preset position closest to the target tire, and then the power is increased according to the rules. This can reduce interference to adjacent tire sensors by taking advantage of distance, and ensure stable activation of the target sensor by increasing the power, thus taking into account both the accuracy and reliability of activation.

[0058] S102, receiving at least one second signal corresponding to the first signal at each transmission power; wherein each second signal is a response signal sent by a first sensor according to the first signal; the first sensor is a sensor on any one of the tires of the vehicle.

[0059] In this embodiment, after the first signal (low-frequency activation signal) is transmitted at the first power and each of the second powers, the system receives at least one corresponding second signal for each transmission power. These second signals are response signals (e.g., high-frequency signals containing sensor ID and tire pressure data) actively fed back by the sensors (i.e., the first sensors) on any tire of the vehicle after being awakened by the first signal of the corresponding power. Simply put, "for every power signal transmitted, feedback signals from all awakened sensors are received," and each transmission power must independently complete the "transmission-reception" correspondence to ensure that response data from each sensor at different power levels can be obtained.

[0060] Specifically, the system, following the transmission sequence, immediately activates the high-frequency receiving module after transmitting the first signal at a certain power (e.g., the first power), entering a dedicated listening period for the corresponding power (e.g., listening for 2 seconds for each power). It only receives the response signals (i.e., the second signals) transmitted by the sensors within that period, avoiding confusion between response signals of different power levels. Upon receiving each second signal, it automatically binds and labels it with the currently used transmission power (e.g., labeling the signal data as "transmission power = 8dBm" or "transmission power = 10dBm"), ensuring that the activation power corresponding to each second signal can be clearly identified subsequently, providing a data foundation for "power-signal strength" correlation analysis.

[0061] The receiving module is set to full-band compatible mode (adapting to the feedback frequency bands of all tire sensors in the vehicle, such as 315MHz / 433MHz). No matter which tire sensor is woken up and sends a response signal, it can be accurately captured without missing any possible first sensor feedback, ensuring the comprehensiveness of subsequent target sensor identification.

[0062] S103, determine the sensor on the target tire from at least one first sensor based on the transmission power and the signal strength of the second signal at each transmission power.

[0063] In this embodiment, the "transmission power" and "intensity of each second signal at the corresponding power" are used as dual core criteria. By analyzing the correlation between different power levels and the intensity of sensor response signals, the sensor on the target tire is accurately selected from all the first sensors that are activated (sensors on any tire of the vehicle).

[0064] Simply put, it involves comparing the strength changes of each sensor's feedback signal under low, medium, and high power levels to identify the sensor that matches the characteristics of the target tire. This is because the target tire is closest to the launch position, and its signal strength will show a unique trend of "stable enhancement and overall strongest" as the power increases, while non-target sensors are unlikely to meet this pattern.

[0065] Specifically, all received second signals are first stored in a three-dimensional association according to "transmit power - sensor ID - signal strength" (for example, in tabular form: when the power is 8dBm, the signal strength of sensor A is -60dBm and that of sensor B is -85dBm; when the power is 10dBm, the signal strength of sensor A is -50dBm and that of sensor B is -80dBm, etc.), forming a complete signal strength data chain for each sensor at different power levels. For each sensor, the trend of its signal strength changing with the transmit power is analyzed, as detailed in steps S301-S303.

[0066] In the above method, activation signals are first sent to the target sensor corresponding to the target tire at different transmission powers. Then, the first signal strength values ​​of the first sensors (including the target sensor and adjacent tire sensors) that respond to the signals are collected at each power level. Finally, the target sensor is determined from these sensors by combining the transmission power and the first signal strength values. This method abandons the traditional crude approach that relies solely on a single signal reception or physical isolation. Through dual analysis of different transmission powers and signal strength values, the target sensor can be effectively identified, fundamentally solving the problem of tire cross-counting activation.

[0067] In one embodiment, see Figure 3 This is a schematic diagram of the process for determining the target tire sensor provided in the embodiments of this application. Figure 1 ,like Figure 3 As shown, step S103 includes: S301, for each transmit power, obtain the first signal strength of each second signal transmitted by each first sensor according to the first signal under the transmit power and the corresponding first reception time.

[0068] In this embodiment of the application, for each transmission power (including the first power and all second powers), the system will collect two key pieces of information from each second signal (response signal) fed back by each awakened first sensor (sensor of any tire of the vehicle) - one is the "first signal strength" of the second signal (i.e. the strength of the signal, which is the core indicator for determining the sensor distance), and the other is the "first reception time" of the second signal being received by the system (i.e. the specific time when the signal arrives at the receiving module), so as to achieve a precise four-dimensional data correspondence of "transmission power-sensor-signal strength-reception time".

[0069] Specifically, the system switches sequentially according to the transmission power. After switching to each transmission power and sending the first signal, a "signal acquisition window" (e.g., 2 seconds) is immediately initiated. During this window, the receiving module continuously monitors all second signals, and data acquisition is triggered immediately upon capturing each second signal. The receiving module has a built-in signal strength detection unit. When capturing a second signal, it simultaneously analyzes the power attenuation of the signal (i.e., the strength of the first signal, usually in dBm) and directly records the strength value, ensuring that the strength data of each signal is accurate and without delay.

[0070] The system has a built-in high-precision timing module (such as a millisecond-level clock) that simultaneously records the current system time (i.e., the first reception time) while capturing the second signal and detecting its strength. This ensures a one-to-one correspondence between signal strength and reception time, with no time difference. The system packages and stores the four data items—"current transmission power, first sensor identifier (such as sensor ID), first signal strength, and first reception time"—to form a complete associated data record. For multiple second signals from the same sensor at the same transmission power, the data is stored sequentially according to the reception time, ultimately forming a structured dataset for easy subsequent retrieval and analysis.

[0071] S302, based on the first signal strength of each second signal transmitted by each first sensor and the corresponding first reception time, determine the second signal strength of the signal transmitted by the first sensor and the corresponding second reception time.

[0072] In this embodiment, multiple sets of raw signal data (first signal strength, first reception time) from the same first sensor at different transmission powers are "screened / integrated and optimized" to finally determine the "representative signal parameters" of the sensor at that power—namely, the second signal strength (the optimal / effective value of the raw signal strength) and the second reception time (the most valuable reception time in the raw signal). Essentially, this extracts accurate and reliable core indicators from discrete raw data to provide high-quality data support for subsequent target sensor determination.

[0073] In one embodiment, step S302 includes: The average value of the first reception time corresponding to each second signal transmitted by the first sensor under the first signal at the first transmission power is calculated to obtain the second reception time corresponding to the signal transmitted by the first sensor; the average value of the first signal strength of the second signal transmitted by the first sensor under the first signal at the first transmission power is calculated to obtain the second signal strength corresponding to the signal transmitted by the first sensor.

[0074] In this embodiment, the average value of all first signal strengths at different transmission powers of the same sensor can be calculated as the second signal strength to filter out instantaneous fluctuations. The average value of the reception time of all second signals at different transmission powers of the same sensor is calculated as the second reception time.

[0075] In another example, the maximum value (or peak value within a stable range) of all first signal strengths can be selected as the second signal strength to highlight the sensor's strongest response capability. The first reception time corresponding to the second signal whose signal strength is closest to the second signal strength (such as the mean) is selected as the second reception time to ensure time and intensity matching.

[0076] The second signal strength obtained by screening / calculation is bound to the corresponding second reception time and associated with the identifier of "current transmission power + corresponding first sensor" to form a set of standardized core data, which replaces the discrete original data and facilitates subsequent trend analysis and target determination.

[0077] In the above method, by calculating the average reception time and average signal strength of all response signals of the same sensor at the corresponding transmission power, the core indicators of second reception time and second signal strength are determined. This effectively filters out instantaneous fluctuations and interference in the original data, improves the stability and reliability of the data, and provides high-quality data support for the accurate determination of the target sensor in the future.

[0078] S303, determine the sensor on the target tire based on the second signal strength and second reception time corresponding to each first sensor.

[0079] In this embodiment, the sensor of the target tire is accurately located from all the first sensors (vehicle tire sensors) by using the dual core indicators of "signal strength (second signal strength) + response timing (second reception time)". Essentially, this is to take advantage of the physical characteristic that the target tire is closest to the transmission position, and its feedback signal will have the unique characteristics of "faster response and stronger signal". By combining the comprehensive judgment of these two indicators, interference from non-target sensors is eliminated.

[0080] The above method achieves simultaneous improvement in the accuracy of target identification, environmental adaptability, and data reliability by finely collecting the intensity and reception time of sensor response signals under various transmission powers, optimizing and integrating core data, and combining dual indicators to determine the target sensor. This effectively avoids the risk of misjudgment by a single indicator and ensures efficient and accurate activation of the target tire sensor in complex scenarios.

[0081] In one embodiment, see Figure 4 This is a schematic diagram of the process for determining the target tire sensor provided in the embodiments of this application. Figure 2 ,like Figure 4 As shown, step S303 includes: S401, sort at least one first sensor according to the order of the second receiving time corresponding to each first sensor to obtain a first arrangement order.

[0082] In this embodiment, the "second reception time" (the core response time of each first sensor at the corresponding transmission power, such as the first effective signal reception time or stable response time) is used as the sole sorting criterion. According to the rule of "the earlier the signal is received, the higher the ranking", all the awakened first sensors (each tire sensor of the vehicle) are arranged in order to form a clear "response speed ranking table" (i.e., the first ranking order).

[0083] Specifically, we can first extract the second reception time corresponding to each first sensor from the structured data (ensuring that each sensor corresponds to only one core reception time and there are no duplicates), forming a one-to-one correspondence between "sensor ID - second reception time" (such as sensor 1: 2.05 seconds, sensor 2: 1.98 seconds, sensor 3: 2.12 seconds), and clearly define the sorting logic as "ascending order" (that is, the smaller the time value, the earlier the sorting), because the smaller the value of the second reception time, the earlier the sensor response.

[0084] The system compares and sorts the second reception times of all sensors according to the above rules, arranges the sensor IDs in order of reception time from earliest to latest, and finally outputs a complete first sorting order (such as sensor 2 → sensor 1 → sensor 3), clearly presenting the response speed order of each sensor, and providing a timing basis for subsequent determination of the target sensor based on signal strength.

[0085] S402, sort at least one first sensor according to the second signal strength corresponding to each first sensor in descending order to obtain a second arrangement order.

[0086] In this embodiment, the "second signal strength" (the core signal strength index of each first sensor at the corresponding transmission power, such as the optimized value of mean, peak, etc.) is used as the sole sorting criterion. According to the rule of "the greater the signal strength, the higher the ranking", all the awakened first sensors (each tire sensor of the vehicle) are arranged in order to form a clear "signal strength ranking table" (i.e., the second sorting order).

[0087] Specifically, the second signal strength corresponding to each first sensor can be extracted from the structured data (ensuring that each sensor corresponds to only one core strength value and there are no duplicates), forming a one-to-one correspondence between "sensor ID - second signal strength" (e.g., sensor 1: -55dBm, sensor 2: -49dBm, sensor 3: -58dBm), and the sorting logic is clearly defined as "descending order" (i.e., the larger the signal strength value, the earlier it is sorted), because a larger value means that the signal fed back by the sensor is stronger and the distance to the transmission position is likely to be closer.

[0088] The system compares and sorts the second signal strength of all sensors according to the above rules, arranges the sensor IDs in descending order of strength, and finally outputs a complete second sorting order (such as sensor 2 → sensor 1 → sensor 3), clearly presenting the signal strength level of each sensor, and providing a strength basis for subsequent determination of the target sensor by combining the response time sequence.

[0089] S403, determine the sensor on the target tire according to the first arrangement order and the second arrangement order.

[0090] In this embodiment of the application, the sensor of the target tire is accurately located from all the first sensors by double cross-validation of "response speed ranking (first order)" and "signal strength ranking (second order)". Essentially, this is to combine the physical law that "the closer the distance, the faster the response and the stronger the signal" to select the sensor that is in the leading position in both rankings, so as to avoid the error of single index judgment and ensure the reliability of the identification result.

[0091] In the above method, by sorting the sensors according to their response time and signal strength respectively, and then combining the two sorting results to determine the target sensor, dual cross-validation of "response speed" and "signal strength" is achieved, which effectively avoids the risk of misjudgment from a single sorting dimension and greatly improves the accuracy and reliability of target tire sensor identification.

[0092] In one embodiment, see Figure 5 This is a schematic diagram of the process for determining the target tire sensor provided in the embodiments of this application. Figure 3 ,like Figure 5 As shown, step S403 includes: S501, determine the second sensor according to the first arrangement order; wherein, the second sensor is the first sensor in the initial position of the first arrangement order.

[0093] In this embodiment of the application, based on the "first arrangement order" (the result of sorting the sensors from early to late according to the second reception time of the sensors), the first sensor "in the initial position" (i.e. the first one at the beginning) in the sorting is directly defined as the "second sensor".

[0094] The system pre-sets the "initial position of the first sorting order" as the first position of the sorting result (i.e., ranked 1st). No additional calculation is required. It only needs to identify the first element of the sorting sequence. In the generated first sorting order (such as a list of sensor IDs arranged from earliest to latest by reception time), the system directly selects the sensor ID at the very beginning of the list and identifies it as the second sensor. All associated data corresponding to the selected second sensor (such as second signal strength, second reception time, etc.) are extracted together and used as core candidate data for subsequent cross-validation with other indicators (such as combining signal strength ranking), ensuring that the screening results are traceable and reusable.

[0095] S502, determine the third sensor according to the second arrangement order; wherein the third sensor is the first sensor in the initial position in the second arrangement order.

[0096] In this embodiment of the application, based on the "second arrangement order" (the result of sorting the second signal strength of the sensors from strong to weak), the first sensor "in the initial position" (i.e. the first one at the beginning) in the sorting is directly defined as the "third sensor".

[0097] In the generated second sorting order (such as a list of sensor IDs arranged from strongest to weakest signal strength), the sensor ID at the top of the list is directly selected and identified as the third sensor. Simultaneously, all related information corresponding to the third sensor (such as the second reception time, signal data at each transmission power, etc.) is extracted as the core candidate data for subsequent cross-validation with the second sensor (the fastest response candidate), ensuring that the screening results can be used for the final determination of the target sensor.

[0098] S503, if the second sensor is the same as the third sensor, then the second sensor or the third sensor is identified as the sensor on the target tire.

[0099] In this embodiment, when the second sensor selected by "response speed" (first in the first arrangement, fastest response) is the same sensor as the third sensor selected by "signal strength" (first in the second arrangement, strongest signal), this sensor is directly identified as the sensor on the target tire. Essentially, this is to lock in the unique sensor that meets the target characteristics through the consistency verification of the dual indicators of "fastest response" and "strongest signal", thus ensuring the accuracy of the judgment result.

[0100] The system obtains the unique identifiers (such as sensor ID, hardware number, etc.) of the second and third sensors respectively to ensure that the identification information used for comparison is of the same dimension. The system directly compares the identifiers of the two candidate sensors to determine whether they are the same sensor (such as checking whether the sensor IDs are exactly the same). If the comparison result shows that the two identifiers are consistent (that is, the second sensor and the third sensor are the same), no additional judgment is needed. The sensor is directly used as the sensor on the target tire, and its identifier and related data (such as signal strength, reception time, etc.) are output to complete the final identification.

[0101] It should be noted that if the second and third sensors are not present simultaneously, multiple transmission powers need to be reset, activation signals need to be resent, and high-frequency response signals returned by each tire sensor need to be collected. The analysis should then be performed again according to the above method to determine the sensor corresponding to the target tire.

[0102] In the above method, by selecting the second sensor ranked first in response time and the third sensor ranked first in signal strength, if the two are consistent, they are directly locked as the target sensor. This achieves accurate verification of dual core indicators, which simplifies the judgment logic, improves the recognition efficiency, and effectively avoids the risk of misjudgment from a single dimension, ensuring the accuracy and reliability of target tire sensor recognition.

[0103] In one embodiment, the method further includes: After identifying the sensor on the target tire, record the sensor's identification identifier; then send the sensor's identification identifier back to the user to indicate that the sensor on the target tire has been successfully activated.

[0104] In this embodiment of the application, after the sensor of the target tire is determined through the previous dual indicator verification (fastest response + strongest signal), the system will first store the unique identifier of the sensor (for subsequent identification, management or data association), and then give this identifier to the user in an intuitive way, so that the user clearly knows that "the sensor of the target tire has been successfully activated", forming a complete "identification-recording-feedback" closed loop.

[0105] Specifically, the unique identifier of the target sensor (such as the sensor's built-in hardware ID, serial number, pairing code, etc., to ensure global uniqueness) is extracted. This identifier, along with relevant information (such as activation time, target tire position, corresponding transmission power / signal data, etc.), is stored in the system database or local storage module to ensure that the data is traceable and queryable (for example, it can be retrieved during subsequent troubleshooting and sensor matching). On the operating device (such as the display screen of the activation tool, mobile APP, vehicle central control screen), the identity identifier of the target sensor and the "activation successful" prompt (such as "target tire sensor ID: ABC123 activated successfully") are directly displayed.

[0106] The above method, by recording the sensor's identity and providing feedback to the user, not only completes the closed-loop management of sensor activation and provides a reliable basis for subsequent data association and device management, but also intuitively prompts the user with the activation result, improving the user experience and trust in the system.

[0107] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0108] Corresponding to the tire pressure sensor determination method in the above embodiment, Figure 6 This is a structural block diagram of the tire pressure sensor determining device provided in the embodiments of this application. For ease of explanation, only the parts related to the embodiments of this application are shown.

[0109] Reference Figure 6 The device includes: The signal activation module 61 is used to send a first signal at a different transmission power when the sensor of the target tire of the vehicle is activated; The response signal receiving module 62 is configured to receive at least one second signal corresponding to the first signal at each of the transmission powers; wherein each second signal is a response signal sent by a first sensor according to the first signal; the first sensor is a sensor on any one of the tires of the vehicle; The target sensor determination module 63 is used to determine the sensor on the target tire from at least one of the first sensors based on the transmission power and the signal strength of the second signal at each of the transmission powers.

[0110] The signal activation module 61 is also used for: Obtain the first power; Using the first power as a reference, the power value is increased sequentially to obtain at least one second power; The first signal is transmitted at a first power and each of the second powers respectively; wherein the transmission power includes the first power and the second power.

[0111] The signal activation module 61 is also used for: At a preset position away from the target tire, a first signal is transmitted with a first power and a second power, respectively; wherein the preset position is less than the distance between the preset position and the target tire than the distance between the preset position and any other tire in the vehicle other than the target tire.

[0112] The target sensor determination module 63 is also used for: For each transmission power, obtain the first signal strength of each second signal transmitted by each first sensor according to the first signal under the transmission power and the corresponding first reception time; Based on the first signal strength of each second signal transmitted by each first sensor and the corresponding first reception time, the second signal strength of the signal transmitted by the first sensor and the corresponding second reception time are determined. The sensors on the target tire are determined based on the second signal strength and second reception time corresponding to each first sensor.

[0113] The target sensor determination module 63 is also used for: The average value of the first reception time corresponding to each second signal transmitted by the first sensor under the first signal at the first transmission power is calculated to obtain the second reception time corresponding to the signal transmitted by the first sensor; The average value of the first signal strength of the second signal transmitted by the first sensor based on the first signal at the first transmission power is calculated to obtain the second signal strength corresponding to the signal transmitted by the first sensor.

[0114] The target sensor determination module 63 is also used for: At least one first sensor is sorted according to the order of the second reception time corresponding to each first sensor to obtain a first arrangement order; At least one first sensor is sorted in descending order of the second signal strength corresponding to each first sensor to obtain a second arrangement order; The sensors on the target tire are determined based on the first and second arrangement orders.

[0115] The target sensor determination module 63 is also used for: The second sensor is determined according to the first arrangement order; wherein, the second sensor is the first sensor that is initially positioned in the first arrangement order. The third sensor is determined according to the second arrangement order; wherein, the third sensor is the first sensor in the initial position in the second arrangement order; If the second sensor is the same as the third sensor, then the second sensor or the third sensor is identified as the sensor on the target tire.

[0116] The target sensor determination module 63 is also used for: After identifying the sensors on the target tire, record the identification of the sensors on the target tire; The system sends the identification information of the sensor on the target tire back to the user to indicate that the sensor on the target tire has been successfully activated.

[0117] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0118] in addition, Figure 6 The tire pressure sensor determining device shown can be a software unit, a hardware unit, or a combination of software and hardware built into existing terminal equipment. It can also be integrated into the terminal equipment as a separate accessory, or exist as a standalone terminal equipment.

[0119] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0120] Figure 7 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application. For example... Figure 7 As shown, the terminal device 7 of this embodiment includes: at least one processor 70 ( Figure 7 (Only one is shown in the image) a processor, a memory 71, and a computer program 72 stored in the memory 71 and executable on at least one processor 70, wherein the processor 70 executes the computer program 72 to implement the steps in any of the above-described embodiments of the tire pressure sensor determination method.

[0121] The terminal device can be a computing device such as a desktop computer, laptop, handheld computer, or cloud server. This terminal device may include, but is not limited to, a processor and memory. Those skilled in the art will understand that... Figure 7 This is merely an example of terminal device 7 and does not constitute a limitation on terminal device 7. It may include more or fewer components than shown in the figure, or combine certain components, or different components, such as input / output devices, network access devices, etc.

[0122] The processor 70 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0123] In some embodiments, memory 71 may be an internal storage unit of terminal device 7, such as a hard disk or memory of terminal device 7. In other embodiments, memory 71 may be an external storage device of terminal device 7, such as a plug-in hard disk, smart media card (SMC), secure digital card (SD) card, flash card, etc., equipped on terminal device 7. Furthermore, memory 71 may include both internal storage units and external storage devices of terminal device 7. Memory 71 is used to store operating system, application programs, boot loader, data, and other programs, such as program code of computer programs. Memory 71 can also be used to temporarily store data that has been output or will be output.

[0124] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the steps in the above-described method embodiments.

[0125] This application provides a computer program product that, when run on a terminal device, enables the terminal device to implement the steps described in the various method embodiments above.

[0126] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. A computer-readable medium can include at least: any entity or device capable of carrying computer program code to a device / terminal equipment, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0127] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0128] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0129] In the embodiments provided in this application, it should be understood that the disclosed apparatus / terminal devices and methods can be implemented in other ways. For example, the apparatus / terminal device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0130] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0131] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for determining tire pressure using a tire pressure sensor, characterized in that, The method includes: When the sensor of the target tire of the vehicle is activated, a first signal is sent with a different transmission power; Receive at least one second signal corresponding to the first signal at each of the aforementioned transmission powers; wherein each second signal is a response signal sent by a first sensor based on the first signal; the first sensor is a sensor on any one of the tires of the vehicle; The sensor on the target tire is determined from at least one of the first sensors based on the transmission power and the signal strength of the second signal at each of the transmission powers.

2. The tire pressure sensor determination method as described in claim 1, characterized in that, The transmission of the first signal at different transmission powers includes: Obtain the first power; Based on the first power, the power value is increased sequentially to obtain at least one second power; The first signal is transmitted at the first power and each of the second powers, respectively; wherein the transmission power includes the first power and the second power.

3. The tire pressure sensor determination method as described in claim 2, characterized in that, The step of transmitting the first signal at the first power and each of the second powers includes: At a preset position away from the target tire, the first signal is transmitted with the first power and the second power respectively; wherein, the preset position is less than the distance between the preset position and the target tire than the distance between the preset position and any other tire in the vehicle other than the target tire.

4. The tire pressure sensor determination method as described in claim 3, characterized in that, The step of determining the sensor on the target tire from at least one of the first sensors based on the transmission power and the signal strength of the second signal at each of the transmission powers includes: For each transmission power, obtain the first signal strength and the corresponding first reception time of each second signal transmitted by each first sensor according to the first signal under the transmission power; Based on the first signal strength of each second signal transmitted by each of the first sensors and the corresponding first reception time, the second signal strength of the signal transmitted by the first sensor and the corresponding second reception time are determined. The sensors on the target tire are determined based on the second signal strength and the second reception time corresponding to each of the first sensors.

5. The tire pressure sensor determination method as described in claim 4, characterized in that, The step of determining the second signal strength and corresponding second reception time of the signal transmitted by the first sensor based on the first signal strength and corresponding first reception time of the second signal transmitted by each of the first sensors includes: The average value of the first reception time corresponding to each second signal transmitted by the first sensor under the first signal at the transmission power is calculated to obtain the second reception time corresponding to the signal transmitted by the first sensor; The average value of the first signal strength of the second signal transmitted by the first sensor under the first signal at the transmitted power is calculated to obtain the second signal strength corresponding to the signal transmitted by the first sensor.

6. The tire pressure sensor determination method as described in claim 4, characterized in that, The step of determining the sensors on the target tire based on the second signal strength and second reception time corresponding to each of the first sensors includes: At least one first sensor is sorted according to the order of the second reception time corresponding to each first sensor to obtain a first arrangement order; At least one of the first sensors is sorted in descending order of the second signal strength corresponding to each first sensor to obtain a second arrangement order; The sensors on the target tire are determined according to the first arrangement order and the second arrangement order.

7. The tire pressure sensor determination method as described in claim 6, characterized in that, The step of determining the sensors on the target tire according to the first arrangement order and the second arrangement order includes: The second sensor is determined according to the first arrangement order; wherein the second sensor is the first sensor in the initial position in the first arrangement order; The third sensor is determined according to the second arrangement order; wherein the third sensor is the first sensor in the initial position in the second arrangement order; If the second sensor is the same as the third sensor, then the second sensor or the third sensor is identified as the sensor on the target tire.

8. The tire pressure sensor determination method as described in claim 1, characterized in that, The method further includes: After identifying the sensors on the target tire, record the identification of the sensors on the target tire; The identification of the sensor on the target tire is fed back to the user to indicate that the sensor on the target tire has been successfully activated.

9. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 8.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 8.

Images