Early warning method and device for tire pressure loss

Abstract

The invention provides a tire pressure loss early warning method which comprises the following steps: determining a tire pressure receiving rate calculation interval which is a time period in which a vehicle speed continuously meets a preset condition; in the tire pressure receiving rate calculation interval, receiving tire pressure data of the tire pressure signal, and counting the receiving rate of the tire pressure data; and under the condition that the tire pressure data receiving rate is smaller than the preset receiving rate, setting and outputting an early warning signal. The tire pressure data receiving rate of the received tire pressure signal is calculated in real time, and when the receiving rate is lower than the index requirement, the early warning signal can be output before the tire pressure loss alarm is formed, so that a user is reminded to track and check in a shop in advance, and the driving risk is avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of data processing technology, and in particular to a tire pressure loss warning method and device. Background Art

[0002] At present, the electromagnetic environment of vehicles is becoming increasingly complex, and there are many kinds of items installed in the car. The tire pressure signal transmission based on high-frequency wireless communication is easily affected by environmental interference, resulting in the phenomenon of tire pressure loss alarm. Tire pressure loss may cause the vehicle to be unable to identify driving safety hazards in time, and it is also difficult to find the root cause of tire pressure loss in the first place, affecting the user's car experience. Summary of the invention

[0003] The present disclosure provides a tire pressure loss warning method, device, electronic device and storage medium.

[0004] According to a first aspect of the present disclosure, a method for early warning of tire pressure loss is provided, the method comprising: confirming a tire pressure reception rate calculation interval, wherein the tire pressure reception rate calculation interval is a time period in which the vehicle speed continuously meets a preset condition; within the tire pressure reception rate calculation interval, receiving tire pressure data of the tire pressure signal, and counting the reception rate of the tire pressure data; when the tire pressure data reception rate is less than the preset reception rate, setting and outputting an early warning signal.

[0005] In some embodiments, confirming the tire pressure reception rate calculation interval includes: in response to the vehicle speed being greater than or equal to a preset speed threshold, starting counting and recording the start time; in response to the vehicle speed being less than the preset speed threshold, stopping counting and recording the stop time; determining the timing time based on the start time and the stop time; when the timing time is greater than or equal to the preset time threshold, using the interval from the start time to the stop time as the tire pressure reception rate calculation interval.

[0006] In some embodiments, the tire pressure signal includes at least a tire pressure movement mode indication signal and a tire pressure monitoring signal, the tire pressure data includes a data packet, and within a tire pressure reception rate calculation interval, the tire pressure data of the tire pressure signal is received, and the reception rate of the tire pressure data is counted, including: determining the number of packets that should be sent for the tire pressure signal according to the timing time of the tire pressure reception rate calculation interval, wherein there is a corresponding relationship between the timing time and the number of packets that should be sent, and the number of packets that should be sent is the number of data packets that should be sent; within the tire pressure reception rate calculation interval, counting the number of lost packets of the tire pressure signal that meets the first preset condition, wherein the first preset condition includes: the tire pressure movement mode indication signal indicates the movement mode, and the tire pressure monitoring signal is 1; taking the difference between the number of packets that should be sent and the number of lost packets of the tire pressure signal as the actual number of packets received of the tire pressure signal, wherein the actual number of packets sent is the number of data packets actually received; taking the ratio of the actual number of packets received to the number of packets that should be sent of the tire pressure signal as the packet reception rate of the tire pressure signal, and the packet reception rate is the reception rate of the data packet.

[0007] In some embodiments, within the tire pressure reception rate calculation interval, counting the number of packet losses of the tire pressure signal that meets the first preset condition includes: within the tire pressure reception rate calculation interval, counting the reception time of each frame of tire pressure signal that meets the first preset condition; calculating the reception time interval between two adjacent frames of tire pressure signal data, and determining the number of reception time intervals greater than or equal to the preset time interval as the available number; adding the reception time intervals greater than or equal to the preset time interval to obtain the total time; and determining the number of packet losses of the tire pressure signal based on the total time and the available number.

[0008] In some embodiments, the tire pressure data also includes data frames. Within the tire pressure reception rate calculation interval, the tire pressure data of the tire pressure signal is received, and the reception rate of the tire pressure data is counted, including: determining the number of frames that should be sent for the tire pressure signal based on the timing time of the tire pressure reception rate calculation interval, wherein the number of frames that should be sent is the number of data frames that should be sent; within the tire pressure reception rate calculation interval, counting the number of data frames of the tire pressure signal that meet the first preset condition, and determining the number as the actual number of received frames, wherein the actual number of received frames is the number of data frames actually received; taking the ratio of the actual number of received frames of the tire pressure signal to the number of frames that should be sent as the frame reception rate of the tire pressure signal, and the frame reception rate is the reception rate of the data frames.

[0009] In some embodiments, the method also includes: determining the maximum vehicle speed, minimum vehicle speed and average vehicle speed within the tire pressure reception rate calculation interval; outputting at least one of the following auxiliary information: the number of packets to be sent, the actual number of packets received, the number of frames to be sent, the actual number of frames received, the packet reception rate, the frame reception rate, the maximum vehicle speed, the minimum vehicle speed, the average vehicle speed within the tire pressure reception rate calculation interval, and the start time of the tire pressure reception rate calculation interval, and the auxiliary information is used to assist in troubleshooting the cause of tire pressure loss based on the warning signal.

[0010] According to a second aspect of the present disclosure, a tire pressure loss warning device is provided, the device comprising: a determination module for confirming a tire pressure reception rate calculation interval, wherein the tire pressure reception rate calculation interval is a time period in which the vehicle speed continuously meets a preset condition; a statistical module for receiving tire pressure data of a tire pressure signal within the tire pressure reception rate calculation interval, and counting the reception rate of the tire pressure data; and an output module for setting and outputting a warning signal when the tire pressure data reception rate is less than a preset reception rate.

[0011] According to a third aspect of the present disclosure, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method described in the embodiment of the first aspect of the present disclosure.

[0012] According to a fourth aspect of the present disclosure, a vehicle is provided, comprising: the tire pressure loss warning device described in the embodiment of the second aspect of the present disclosure or the electronic device described in the embodiment of the third aspect of the present disclosure.

[0013] According to a fifth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable a computer to execute the method described in the embodiment of the first aspect of the present disclosure.

[0014] According to a sixth aspect of the present disclosure, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the method described in the embodiment of the first aspect of the present disclosure is implemented.

[0015] The embodiment of the present disclosure provides a tire pressure loss warning method, the method comprising: confirming a tire pressure reception rate calculation interval, wherein the tire pressure reception rate calculation interval is a time period in which the vehicle speed continuously meets a preset condition; within the tire pressure reception rate calculation interval, receiving tire pressure data of the tire pressure signal, and counting the reception rate of the tire pressure data; when the tire pressure data reception rate is less than the preset reception rate, setting and outputting a warning signal. The present disclosure calculates the tire pressure data reception rate of the received tire pressure signal in real time. When the reception rate is lower than the index requirement, a warning signal can be output before a tire pressure loss alarm is formed to remind the user to track and check in advance to avoid driving risks.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0018] Figure 1 A schematic diagram of a process flow of a tire pressure loss warning method provided by an embodiment of the present disclosure;

[0019] Figure 2 A schematic diagram of a process flow of a tire pressure loss warning method provided by an embodiment of the present disclosure;

[0020] Figure 3 An example diagram of the architecture of a tire pressure loss warning system provided by an embodiment of the present disclosure;

[0021] Figure 4 A tire pressure receiving rate calculation and warning flow chart provided in an embodiment of the present disclosure;

[0022] Figure 5 A schematic structural diagram of a tire pressure loss warning device provided by an embodiment of the present disclosure;

[0023] Figure 6 A schematic block diagram of an exemplary electronic device provided for an embodiment of the present disclosure. DETAILED DESCRIPTION

[0024] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0025] The following describes in detail a tire pressure loss warning method, device, and electronic device proposed in the present disclosure with reference to the accompanying drawings.

[0026] Figure 1 A schematic flow chart of a tire pressure loss warning method provided by an embodiment of the present disclosure, the method is executed by a vehicle central processing unit, such as Figure 1 As shown, the method comprises steps 101-104:

[0027] Step 101, confirming the tire pressure receiving rate calculation interval.

[0028] The tire pressure reception rate calculation interval is a period of time in which the vehicle speed continuously meets the preset conditions.

[0029] In an embodiment of the present disclosure, the tire pressure reception rate calculation interval is a continuous time period, during which the received tire pressure signals are counted and the reception rate of the tire pressure signals is calculated.

[0030] In some embodiments, the preset conditions include a vehicle speed greater than or equal to a preset threshold, for example, a vehicle speed greater than or equal to 35 km / h, and the tire pressure reception rate calculation interval is a time period in which the vehicle speed continuously meets the preset conditions, that is, the vehicle speed at each moment in the tire pressure reception rate calculation interval is greater than or equal to 35 km / h.

[0031] In some embodiments, the duration of the time period is greater than or equal to a preset time threshold, for example, the time period is greater than or equal to 10 minutes, otherwise it cannot be used as a tire pressure reception rate calculation interval.

[0032] It should be noted that the restrictions on vehicle speed and duration in the tire pressure reception rate calculation interval are to facilitate the calculation of the tire pressure signal reception rate under normal vehicle operation. The preset conditions can be set according to the specific application scenario and are not limited in this disclosure.

[0033] Step 102: within the tire pressure receiving rate calculation interval, receive tire pressure data of the tire pressure signal, and calculate the receiving rate of the tire pressure data.

[0034] In an embodiment of the present disclosure, the tire pressure signal is a signal sent by a tire pressure monitoring system (TPMR), including a tire pressure monitoring signal of each tire in the vehicle and a tire pressure movement mode indication signal, wherein the tire pressure monitoring signal is used to indicate the pressure value detected by the pressure sensor on the tire, and the tire pressure movement mode indication signal is used to indicate the current tire pressure movement mode.

[0035] In some embodiments, the reception rate of tire pressure data is calculated based on the number of tire pressure data that should be sent and the actual number of tire pressure data received. The number of tire pressure data that should be sent is the number of tire pressure data of tire pressure signals that should be sent under normal circumstances, and the actual number of tire pressure data received is the number of tire pressure data of tire pressure signals actually received.

[0036] In some embodiments, within the tire pressure receiving rate calculation interval, the number of tire pressure data to be sent is a preset value, and the actual number of tire pressure data received can be obtained based on statistics of the tire pressure data actually received.

[0037] In some embodiments, tire pressure data includes data packets and data frames. For example, in the motion mode, the tire pressure sensor usually sends a packet of tire pressure data per minute, and each packet of data contains x frames of data, where x is a positive integer greater than 1. Under normal circumstances, the tire pressure sensor should send 1 data packet and x data frames within 1 minute in the motion mode.

[0038] Step 103: When the tire pressure data receiving rate is less than a preset receiving rate, a warning signal is set and output.

[0039] In an embodiment of the present disclosure, the preset reception rate can be set according to the specific scenario. For example, the preset reception rate is 90%. When the tire pressure data reception rate is less than 90%, it is considered that it is more likely to trigger a tire pressure loss alarm, and a warning signal is set and output for warning.

[0040] In some embodiments of the present disclosure, a warning signal is output to a vehicle bus, and the vehicle backend can obtain the corresponding warning signal from the bus, thereby reminding the user to check and avoid driving risks.

[0041] In summary, according to the embodiments of the present disclosure, the method includes: confirming the tire pressure reception rate calculation interval, wherein the tire pressure reception rate calculation interval is a time period in which the vehicle speed continuously meets the preset conditions; within the tire pressure reception rate calculation interval, receiving the tire pressure data of the tire pressure signal, and counting the reception rate of the tire pressure data; when the tire pressure data reception rate is less than the preset reception rate, setting and outputting a warning signal. The present disclosure calculates the tire pressure data reception rate of the received tire pressure signal in real time. When the reception rate is lower than the index requirement, a warning signal can be output before the tire pressure loss alarm is formed to remind the user to track and check in advance to avoid driving risks.

[0042] Figure 2 A schematic flow chart of a tire pressure loss warning method provided in an embodiment of the present disclosure, wherein the method is executed by a vehicle central processing unit.

[0043] This disclosure is for Figure 1 Further disclosure of the corresponding embodiment, such as Figure 2 As shown, the method includes steps 201-204, and at the same time, Figure 3 A schematic diagram showing a framework of a tire pressure loss warning system is shown. Figure 4 A tire pressure receiving rate calculation and warning flow chart is shown.

[0044] Step 201, confirming the tire pressure receiving rate calculation interval.

[0045] The tire pressure reception rate calculation interval is a period of time in which the vehicle speed continuously meets the preset conditions.

[0046] In some embodiments, confirming the tire pressure reception rate calculation interval includes: in response to the vehicle speed being greater than or equal to a preset speed threshold, starting counting and recording the start time; in response to the vehicle speed being less than the preset speed threshold, stopping counting and recording the stop time; determining the timing time based on the start time and the stop time; when the timing time is greater than or equal to the preset time threshold, using the interval from the start time to the stop time as the tire pressure reception rate calculation interval.

[0047] In some embodiments, Figure 4 As shown, determine whether the vehicle speed meets the requirements for tire pressure reception rate calculation. If the preset speed threshold is 35km / h, when the vehicle speed is greater than or equal to 35km / h, it meets the requirements for tire pressure reception rate calculation, start internal timing, record the start time, and record it as Start_Time. Until the vehicle speed does not meet the requirements for tire pressure reception rate calculation, that is, when the vehicle speed is less than 35km / h, the internal timing stops and the stop time is recorded as End_Time1. The cumulative time is determined based on the start time and the stop time, and the cumulative time can be recorded as (End_Time1-Start_Time).

[0048] Furthermore, the preset time threshold can be 10 minutes. If the timing time is less than 10 minutes, the accumulated time is discarded, and the timing is continued when the vehicle speed meets the requirements for calculating the tire pressure reception rate until a cumulative time greater than or equal to 10 minutes is obtained. The timing time is determined based on the accumulated time greater than or equal to 10 minutes. The timing time unit is minute, recorded as DurtnTime, and the calculation formula is: DurtnTime = int (End_Time1-Start_Time), where the int() function is a VFP numerical function that can round a real number to be rounded down to the nearest integer. After rounding, the end time is re-determined based on the timing time DurtnTime and the start time Start_Time, recorded as End_Time2, and the time interval from Start_Time to End_Time2 is used as the tire pressure reception rate calculation interval.

[0049] In some embodiments, the method further includes: determining a maximum vehicle speed, a minimum vehicle speed, and an average vehicle speed within a tire pressure reception rate calculation interval.

[0050] In some embodiments, the maximum vehicle speed within the tire pressure reception rate calculation interval refers to the maximum speed within the DurtnTime segment, denoted as MaxVehSpd, the minimum vehicle speed within the tire pressure reception rate calculation interval refers to the minimum speed within the DurtnTime segment, denoted as MinVehSpd, and the average vehicle speed within the tire pressure reception rate calculation interval refers to the average speed within the DurtnTime segment, denoted as AvgVehSpd.

[0051] In some embodiments, it also includes: determining the year, month, date, hour, minute, and second of the start time.

[0052] In some embodiments, the start time is Start_Time, and the year, month, date, hour, minute, and second distribution of the start time are recorded as MaxVehSpd, MinVehSpd, AvgVehSpd, StYear, StMonth, StDate, StHour, StMinute, StMinute, and StSec.

[0053] In an embodiment of the present disclosure, the tire pressure signal is a signal sent by a tire pressure monitoring system (TPMR), including a tire pressure monitoring signal of each tire in the vehicle and a tire pressure movement mode indication signal, wherein the tire pressure monitoring signal is used to indicate the pressure value monitored by the pressure sensor on the tire, and the tire pressure movement mode indication signal is used to indicate the current tire pressure movement mode.

[0054] In some embodiments of the present disclosure, Figure 3As shown, the tire pressure receiving module can receive each frame of tire pressure signal sent by the tire pressure monitoring system in real time, and transmit it to the tire pressure reception rate calculation module of the central processing unit in the form of event frame through the CAN (Controller Area Network) bus in the vehicle, that is, whenever the tire pressure receiving module receives a tire pressure signal, an event frame will be triggered, and the received tire pressure signal will be transmitted to the tire pressure reception rate calculation module in real time.

[0055] In some embodiments of the present disclosure, the tire pressure data includes a data packet and a data frame, and each frame of the tire pressure signal is received in real time. Each frame of the tire pressure signal contains tire pressure data. For example, the first frame of the tire pressure signal received contains the tire pressure data of the left front tire, and the second frame of the tire pressure signal received contains the tire pressure data of the left rear tire. The data on several consecutive frames of tire pressure signals can constitute a complete tire pressure data packet.

[0056] In some embodiments of the present disclosure, as shown in Table 1 below, the tire pressure signal includes a left front tire pressure monitoring signal, namely TPMS_RF_FL, a right front tire pressure monitoring signal, namely TPMS_RF_FR, a left rear tire pressure monitoring signal, namely TPMS_RF_RL, a right rear tire pressure monitoring signal, namely TPMS_RF_RR, and a tire pressure movement mode indication signal, namely TPMS_RF_Functio nCode_ModeBits, wherein the tire pressure movement mode indication signal can be used to indicate a movement mode, namely Rolling Mode, or a non-movement mode, namely non-Rolling Mode.

[0057] Table 1 Tire pressure signal example table

[0058]

[0059]

[0060] In some embodiments of the present disclosure, tire pressure signal transmission based on high-frequency wireless communication is easily affected by environmental interference, resulting in the loss of tire pressure signals during transmission and inability to be received. The number of frames to be sent is the number of data frames of the tire pressure signal sent by the tire pressure monitoring system under normal circumstances within the tire pressure reception rate calculation interval. The number of packets to be sent is the number of tire pressure data packets sent by the tire pressure monitoring system under normal circumstances within the tire pressure reception rate calculation interval. The actual number of received frames is the number of frames of the tire pressure signal sent by the tire pressure monitoring system actually received within the tire pressure reception rate calculation interval. The actual number of received packets is the number of tire pressure data packets sent by the tire pressure monitoring system actually received within the tire pressure reception rate calculation interval.

[0061] In the embodiments of the present disclosure, both the tire pressure package reception rate and the tire pressure frame reception rate can reflect the reception rate of the tire pressure signal, wherein the tire pressure package reception rate is the tire pressure data packet reception rate, and the tire pressure frame reception rate is the tire pressure signal frame reception rate. Therefore, the tire pressure signal reception rate can be judged by calculating the tire pressure package reception rate and / or the tire pressure frame reception rate.

[0062] In some embodiments of the present disclosure, the method for calculating the tire pressure bag acceptance rate includes steps 202 to 205.

[0063] Step 202, according to the timing time of the tire pressure receiving rate calculation interval, determine the number of packets that the tire pressure signal should be sent.

[0064] There is a corresponding relationship between the timing time and the number of packets to be sent.

[0065] In some embodiments, the tire pressure sensor in the sports mode usually sends a packet of tire pressure data per minute. Assume that each packet contains x frames of data, such as Figure 4 As shown, the number of tire pressure signal packets to be sent is the timing time DurtnTime of the tire pressure reception rate calculation interval.

[0066] Furthermore, the tire pressure signal includes a left front tire pressure monitoring signal, a right front tire pressure monitoring signal, a left rear tire pressure monitoring signal, and a right rear tire pressure monitoring signal. The number of packets to be sent for the left front tire pressure monitoring signal is recorded as TotPkt FL, the number of packets to be sent for the right front tire pressure monitoring signal is recorded as TotPkt FR, the number of packets to be sent for the left rear tire pressure monitoring signal is recorded as TotPkt RL, and the number of packets to be sent for the right rear tire pressure monitoring signal is recorded as TotPkt RR. Then TotPktFL / FR / RL / RR=DurtnTime.

[0067] Step 203: within the tire pressure receiving rate calculation interval, count the number of lost packets of the tire pressure signal that meets the first preset condition.

[0068] Among them, the first preset condition includes: the tire pressure sports mode indication signal indicates the sports mode, and the tire pressure monitoring signal is 1.

[0069] In some embodiments, step 203 includes: within the tire pressure reception rate calculation interval, counting the reception time of each frame of tire pressure signal data that meets the first preset condition; calculating the reception time interval of two adjacent frames of tire pressure signal data, and determining the number of reception time intervals greater than or equal to the preset time interval as the available number; adding the reception time intervals greater than or equal to the preset time interval to obtain the total time; and determining the number of packet losses of the tire pressure signal based on the total time and the available number.

[0070] In some embodiments, taking the actual number of received packets of the left front tire pressure monitoring signal as an example, the time of each frame satisfying (TPMS_RF_FunctionCode_ModeBits==Rolling Mode&&TPMF_RF_FL==1) within the DurtnTime period is recorded, and recorded as t1, t2, ..., tn. Figure 3 It can be seen that TPMS_RF_FunctionCode_ModeBits==Rolling Mode indicates that the tire pressure sports mode indication signal indicates the sports mode, and TPMF_RF_FL==1 indicates that the left front tire pressure monitoring signal indication is requested.

[0071] Further, the time interval between two adjacent frames is calculated to obtain t2-t1, t3-t2…, and the data in all time intervals that are less than the preset time interval is discarded. The preset time interval is, for example, 55s. The remaining time intervals are △t1, △t2,…, △tm. Since part of the data may be discarded, the number of remaining time intervals m is less than or equal to all the recorded time intervals n. The remaining time intervals are summed to obtain the total time interval △t_total, and the calculation formula is: △t_total=△t1+△t2+…+△tm. According to the remaining time interval, the number of packet losses is calculated, and the calculation formula is: Packet_Loss_FL=Round((△t_total-60*m) / 60), where Packet_Loss_FL represents the number of packet losses of the left front tire pressure monitoring signal, and the Round() function is used to round the number to a specified number of digits.

[0072] Similar to counting the number of packet losses of the left front tire pressure monitoring signal, the number of packet losses of the right front tire pressure monitoring signal, the number of packet losses of the left rear tire pressure monitoring signal, and the number of packet losses of the right rear tire pressure monitoring signal are calculated and recorded as Packet_Loss_FR, Packet_Loss_RL, and Packet_Loss_RR, respectively.

[0073] Step 204: The difference between the number of packets that should be sent and the number of lost packets of the tire pressure signal is used as the number of packets actually received of the tire pressure signal.

[0074] In some embodiments, the actual number of received packets of the left front tire pressure monitoring signal is the number of packets to be sent of the left front tire pressure monitoring signal minus the number of lost packets of the left front tire pressure monitoring signal, recorded as RcvdPktFL, and the calculation formula is: RcvdPktFL=TotPktFL-Packet_Loss_FL.

[0075] Similar to counting the actual number of received packets of the left front tire pressure monitoring signal, the actual number of received packets of the right front tire pressure monitoring signal RcvdPktRL = TotPktFR - Packet_Loss_FR, the actual number of received packets of the left rear tire pressure monitoring signal RcvdPktRL = TotPktRL - Packet_Loss_RL, and the actual number of received packets of the right rear tire pressure monitoring signal RcvdPktRR = TotPktRR - Packet_Loss_RR.

[0076] Step 205: The ratio of the number of packets actually received of the tire pressure signal to the number of packets that should be sent is used as the packet reception rate of the tire pressure signal.

[0077] In some embodiments, the packet reception rate of the tire pressure signal is obtained based on the ratio of the actual number of packets received to the number of packets that should be sent of the tire pressure signal, including: calculating the packet reception rate of the left front tire pressure signal based on the number of packets that should be sent TotPktFL of the left front tire pressure signal and the actual number of packets received RcvdPktFL of the left front tire pressure signal, denoted as PktRatioFL, and the calculation formula is PktRatioFL=Round(RcvdPktFL / TotPktFL); calculating the packet reception rate of the right front tire pressure signal based on the number of packets that should be sent TotPktFR of the right front tire pressure signal and the actual number of packets received RcvdPktFR of the right front tire pressure signal, denoted as PktRatioFR, and the calculation formula is PktRatioFR=Round (RcvdPktFR / TotPktFR); According to the number of packets to be sent of the left rear tire pressure signal TotPktRL and the actual number of packets received of the left rear tire pressure signal RcvdPktRL, the packet reception rate of the left rear tire pressure signal is calculated, denoted as PktRatioRL, and the calculation formula is PktRatioRL=Round(RcvdPktRL / TotPktRL); According to the number of packets to be sent of the right rear tire pressure signal TotPktRR and the actual number of packets received of the right rear tire pressure signal RcvdPktRR, the packet reception rate of the right rear tire pressure signal is calculated, denoted as PktRatioRR, and the calculation formula is PktRatioRR=Round(RcvdPktRR / TotPktRR).

[0078] In some embodiments of the present disclosure, the method for calculating the tire pressure frame reception rate includes steps 206 to 208.

[0079] Step 206: Determine the number of frames of the tire pressure signal to be sent according to the timing time of the tire pressure receiving rate calculation interval.

[0080] In some embodiments, the tire pressure sensor in the sports mode usually sends a packet of tire pressure data per minute. Assume that each packet contains x frames of data, such as Figure 4 As shown, the number of frames of the tire pressure signal to be sent is the timing time DurtnTime*x frames of the tire pressure reception rate calculation interval.

[0081] Furthermore, the tire pressure signal includes a left front tire pressure monitoring signal, a right front tire pressure monitoring signal, a left rear tire pressure monitoring signal, and a right rear tire pressure monitoring signal. The number of frames to be sent for the left front tire pressure monitoring signal is recorded as TotFrm FL, the number of frames to be sent for the right front tire pressure monitoring signal is recorded as TotFrm FR, the number of frames to be sent for the left rear tire pressure monitoring signal is recorded as TotFrm RL, and the number of frames to be sent for the right rear tire pressure monitoring signal is recorded as TotFrmRR. Then TotFrmFL / FR / RL / RR=x*TotFrmFL / FR / RL / RR.

[0082] Step 207: Within the tire pressure receiving rate calculation interval, count the number of data frames of the tire pressure signal that meet the first preset condition, and determine the number as the actual received frame number.

[0083] In some embodiments, the total number of frames that satisfy (TPMS_RF_FunctionCode_ModeBits==Rolling Mode&&TPMF_RF_FL==1) is counted within the tire pressure reception rate calculation interval as the number of frames to be received for the left front tire pressure monitoring signal, recorded as RcvdFrmFL, wherein TPMS_RF_FunctionCode_ModeBits==Rolling Mode indicates that the tire pressure motion mode indication signal indicates the motion mode, and TPMF_RF_FL==1 indicates that the left front tire pressure monitoring signal is requested.

[0084] Similarly, within the tire pressure reception rate calculation interval, the total number of frames that satisfy (TPMS_RF_FunctionCode_ModeBits==Rolling Mode&&TPMF_RF_FR==1) is taken as the number of frames to be received for the right front tire pressure monitoring signal, denoted as RcvdPktFR, the total number of frames that satisfy (TPMS_RF_FunctionCode_ModeBits==Rolling Mode&&TPMF_RF_RL==1) is taken as the number of frames to be received for the left rear tire pressure monitoring signal, denoted as RcvdPktRL, and the total number of frames that satisfy (TPMS_RF_FunctionCode_ModeBits==Rolling Mode&&TPMF_RF_RL==1) is taken as the number of frames to be received for the left rear tire pressure monitoring signal, denoted as RcvdPktRL. The total number of frames of Mode&&TPMF_RF_RR==1) is used as the number of frames to be received for the right rear tire pressure monitoring signal, which is recorded as RcvdPktRR, wherein TPMF_RF_FR==1 indicates that the left front tire pressure monitoring signal is requested, TPMF_RF_RL==1 indicates that the left rear tire pressure monitoring signal is requested, and TPMF_RF_RR==1 indicates that the right rear tire pressure monitoring signal is requested.

[0085] Step 208: The ratio of the number of frames actually received and the number of frames to be sent of the tire pressure signal is used as the frame receiving rate of the tire pressure signal.

[0086] In some embodiments, obtaining the frame reception rate of the tire pressure signal according to the ratio of the actual number of frames received to the number of frames to be sent of the tire pressure signal includes: calculating the frame reception rate of the left front tire pressure signal according to the number of frames to be sent TotFrmFL of the left front tire pressure signal and the actual number of frames received RcvdFrmFL of the left front tire pressure signal, denoted as FrmRatioFL, and the calculation formula is FrmRatioFL = Round (RcvdFrmFL / TotFrmFL); calculating the frame reception rate of the right front tire pressure signal according to the number of frames to be sent TotFrmFR of the right front tire pressure signal and the actual number of frames received RcvdFrmFR of the right front tire pressure signal, denoted as FrmRatioFR, and the calculation formula is FrmRatioFR = Round (RcvdFrmFR / TotFrmFR); calculating the frame reception rate of the right front tire pressure signal according to the number of frames to be sent TotFrmFR of the left rear tire pressure signal FrmRL and the actual number of received frames of the left rear tire pressure signal RcvdFrmRL, calculate the frame reception rate of the left rear tire pressure signal, denoted as FrmRatioRL, and the calculation formula is FrmRatioRL=Round(RcvdFrmRL / TotFrmRL); according to the required number of frames TotFrmRR of the right rear tire pressure signal and the actual number of received frames of the right rear tire pressure signal RcvdFrmRR, calculate the frame reception rate of the right rear tire pressure signal, denoted as FrmRatioRR, and the calculation formula is FrmRatioRR=Round(RcvdFrmRR / TotFrmRR).

[0087] It should be noted that you can choose to implement only steps 202 to 205 or only steps 206 to 208, or you can choose to implement steps 202 to 205 and steps 206 to 208, and the present disclosure does not limit this.

[0088] Step 209: When the tire pressure packet receiving rate is less than a preset packet receiving rate and / or the tire pressure frame receiving rate is less than a preset frame receiving rate, a warning signal is set and output.

[0089] In some embodiments, as shown in Table 2, the early warning signal includes a frame reception rate alarm and a packet reception rate warning, the packet reception rate warning includes a packet reception rate warning PktRatioWrnngFL of the left front tire pressure signal, a packet reception rate warning PktRatioWrnngFR of the right front tire pressure signal, a packet reception rate warning PktRatioWrnngRL of the left rear tire pressure signal, and a packet reception rate warning PktRatioWrnngRR of the right rear tire pressure signal, and the frame reception rate alarm includes a frame reception rate warning FrmRatioWrnngFL, a frame reception rate warning FrmRatioWrnngFR of the right front tire pressure signal, a frame reception rate warning FrmRatioWrnngRL of the left rear tire pressure signal, and a frame reception rate warning FrmRatioWrnngRR of the right rear tire pressure signal.

[0090] Further, in some embodiments, the preset packet reception rate is 90%, and the preset frame reception rate is 80%. When PktRatioFL / FR / RL / RR<90%, PktRatioWrnngFL / FR / RL / RR=0x1: Warning, otherwise PktRatioWrnngFL / FR / RL / RR=0x0: No Warning; when FrmRatioFL / FR / RL / RR<80%, FrmRatioWrnngFL / FR / RL / RR=0x1: Warning, otherwise FrmRatioWrnngFL / FR / RL / RR=0x0: No Warning.

[0091] In some embodiments, the method also includes: determining the maximum vehicle speed, minimum vehicle speed and average vehicle speed within the tire pressure reception rate calculation interval; outputting at least one of the following auxiliary information: the number of packets to be sent, the actual number of packets received, the number of frames to be sent, the actual number of frames received, the packet reception rate, the frame reception rate, the maximum vehicle speed, the minimum vehicle speed, the average vehicle speed within the tire pressure reception rate calculation interval, and the start time of the tire pressure reception rate calculation interval, and the auxiliary information is used to assist in troubleshooting the cause of tire pressure loss based on the warning signal.

[0092] In some embodiments, as shown in Table 2, the output auxiliary information includes: the maximum vehicle speed, minimum vehicle speed, average vehicle speed within the tire pressure reception rate calculation interval, the start time year, month, date, hour, minute, second of the tire pressure reception rate calculation interval, the number of packets to be sent for the left front tire pressure signal, the actual number of frames received, the packet reception rate, the frame reception rate, the tire pressure reception rate, the number of packets to be sent for the right front tire pressure signal, the actual number of frames received, the packet reception rate, the frame reception rate, the tire pressure reception rate, etc.

[0093] In some embodiments, information such as the maximum vehicle speed and / or minimum vehicle speed and / or average vehicle speed and start time within the tire pressure reception rate calculation interval is output to the CAN bus, and the vehicle backend user or after-sales inspection personnel can monitor the vehicle's operating conditions based on the above data.

[0094] In some embodiments, in combination Figure 3 As shown in Table 2, after the central processing unit performs tire pressure reception rate calculation, the following tire pressure reception rate calculation results and warning signals can be output to the CAN bus to provide vehicle background inspection.

[0095] Table 2 Tire pressure reception rate calculation results and warning signal example diagram

[0096]

[0097]

[0098] It should be noted that when the calculated tire pressure signal reception rate within this interval is lower than the index requirement, the specific time when the tire pressure signal transmission problem occurred and the vehicle's speed information at that time can be inferred based on the above signal, which can help after-sales inspection personnel to find out the root cause of the problem as soon as possible and solve it successfully.

[0099] In some embodiments, Figure 4 As shown, after the tire pressure receiving rate completes the solution alarm within the duration period, the next time interval judgment is continued, that is, the execution continues from step 201, so as to achieve real-time rolling results.

[0100] To summarize, the tire pressure loss warning method disclosed in the present invention calculates the tire pressure reception rate of the tire pressure reception signal in real time through the vehicle central processing unit. When the reception rate is lower than the index requirement, a warning action is performed in the vehicle background before the tire pressure loss alarm is generated, so as to track the store inspection in advance and avoid driving risks. It can also help after-sales inspection personnel to find out the root cause of the problem as soon as possible and solve it successfully.

[0101] Corresponding to the above-mentioned tire pressure loss warning method, the present disclosure proposes a tire pressure loss warning device. Figure 5 FIG. 3 is a schematic diagram of a tire pressure loss warning device 300 provided in an embodiment of the present disclosure. Figure 5 As shown, the device includes: a determination module 310, used to confirm the tire pressure reception rate calculation interval, wherein the tire pressure reception rate calculation interval is a time period in which the vehicle speed continuously meets the preset conditions; a statistical module 320, used to receive the tire pressure data of the tire pressure signal within the tire pressure reception rate calculation interval, and to count the reception rate of the tire pressure data; and an output module 330, used to set and output a warning signal when the tire pressure data reception rate is less than the preset reception rate.

[0102] In some embodiments, the determination module 310 is specifically used to: start counting and record the start time in response to the vehicle speed being greater than or equal to a preset speed threshold; stop counting and record the stop time in response to the vehicle speed being less than a preset speed threshold; determine the timing time based on the start time and the stop time; when the timing time is greater than or equal to the preset time threshold, use the interval from the start time to the stop time as the tire pressure reception rate calculation interval.

[0103] In some embodiments, the tire pressure signal includes at least a tire pressure movement mode indication signal and a tire pressure monitoring signal, and the tire pressure data includes data packets. The statistical module 320 is specifically used to: determine the number of packets that should be sent for the tire pressure signal based on the timing time of the tire pressure reception rate calculation interval, wherein there is a corresponding relationship between the timing time and the number of packets that should be sent, and the number of packets that should be sent is the number of data packets that should be sent; within the tire pressure reception rate calculation interval, count the number of lost packets of the tire pressure signal that meets the first preset condition, wherein the first preset condition includes: the tire pressure movement mode indication signal indicates the movement mode, and the tire pressure monitoring signal is 1; use the difference between the number of packets that should be sent and the number of lost packets of the tire pressure signal as the actual number of packets received of the tire pressure signal, wherein the actual number of packets sent is the number of data packets actually received; use the ratio of the actual number of packets received of the tire pressure signal to the number of packets that should be sent as the packet reception rate of the tire pressure signal, and the packet reception rate is the reception rate of the data packets.

[0104] In some embodiments, the statistical module 320 is specifically used to: within the tire pressure reception rate calculation interval, count the reception time of each frame of tire pressure signal data that meets the first preset condition; calculate the reception time interval of two adjacent frames of tire pressure signal data, and determine the number of reception time intervals greater than or equal to the preset time interval as the available number; add the reception time intervals greater than or equal to the preset time interval to obtain the total time; determine the number of packet losses of the tire pressure signal based on the total time and the available number.

[0105] In some embodiments, the tire pressure data also includes data frames, and the statistical module 320 is specifically used to: determine the number of frames that should be sent for the tire pressure signal based on the timing time of the tire pressure reception rate calculation interval, wherein the number of frames that should be sent is the number of data frames that should be sent; within the tire pressure reception rate calculation interval, count the number of data frames of the tire pressure signal that meet the first preset condition, and determine the number as the actual number of frames received, wherein the actual number of frames received is the number of data frames actually received; use the ratio of the actual number of frames received of the tire pressure signal to the number of frames that should be sent as the frame reception rate of the tire pressure signal, and the frame reception rate is the reception rate of the data frames.

[0106] In some embodiments, the determination module 310 is also used to: determine the maximum vehicle speed, minimum vehicle speed and average vehicle speed within the tire pressure reception rate calculation interval; output at least one of the following auxiliary information; the output module 330 is also used to: the number of packets to be sent, the actual number of packets received, the number of frames to be sent, the actual number of frames received, the packet reception rate, the frame reception rate, the maximum vehicle speed within the tire pressure reception rate calculation interval, the minimum vehicle speed, the average vehicle speed, and the start time of the tire pressure reception rate calculation interval. The auxiliary information is used to assist in troubleshooting the cause of tire pressure loss based on the warning signal.

[0107] In summary, according to the embodiments of the present disclosure, the device calculates the tire pressure reception rate of the tire pressure reception signal in real time through a determination module, a statistical module, a calculation module and an output module. When the reception rate is lower than the index requirement, an early warning action is performed in the vehicle background before a tire pressure loss alarm is generated, so as to track the vehicle in advance for inspection in the store and avoid driving risks. It can also help after-sales inspection personnel to identify the root cause of the problem as soon as possible and solve it successfully.

[0108] It should be noted that since the device embodiment of the present disclosure corresponds to the above-mentioned method embodiment, the above-mentioned explanation of the method embodiment is also applicable to the device of the present embodiment, and the principle is the same. For details not disclosed in the device embodiment, reference can be made to the above-mentioned method embodiment, and they will not be repeated in this disclosure.

[0109] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

[0110] Figure 6 A schematic block diagram of an example electronic device that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0111] like Figure 4 As shown, the device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 402 or a computer program loaded from a storage unit 408 to a RAM (Random Access Memory) 403. In RAM 403, various programs and data required for the operation of the device 400 can also be stored. The computing unit 401, ROM 402, and RAM 403 are connected to each other via a bus 404. An I / O (Input / Output) interface 405 is also connected to the bus 404.

[0112] A number of components in the device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0113] The computing unit 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a CPU (Central Processing Unit), a GPU (Graphic Processing Units), various dedicated AI (Artificial Intelligence) computing chips, various computing units running machine learning model algorithms, a DSP (Digital Signal Processor), and any appropriate processor, controller, microcontroller, etc. The computing unit 401 performs the various methods and processes described above, such as a warning method for tire pressure loss. For example, in some embodiments, the warning method for tire pressure loss may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 400 via the ROM 402 and / or the communication unit 409. When the computer program is loaded into the RAM 403 and executed by the computing unit 401, one or more steps of the method described above may be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to execute the aforementioned communication method in any other appropriate manner (for example, by means of firmware).

[0114] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic circuit systems, integrated circuit systems, FPGAs (Field Programmable Gate Arrays), ASICs (Application-Specific Integrated Circuits), ASSPs (Application Specific Standard Products), SOCs (System On Chips), CPLDs (Complex Programmable Logic Devices), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that may be executed and / or interpreted on a programmable system including at least one programmable processor that may be a dedicated or general-purpose programmable processor that may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0115] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0116] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include electrical connections based on one or more lines, portable computer disks, hard disks, RAM, ROM, EPROM (Electrically Programmable Read-Only-Memory) or flash memory, optical fiber, CD-ROM (Compact Disc Read-Only Memory), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0117] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0118] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network), WAN (Wide Area Network), the Internet, and blockchain networks.

[0119] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services ("Virtual Private Server", or "VPS" for short). The server may also be a server of a distributed system, or a server combined with a blockchain.

[0120] It should be noted that artificial intelligence is a discipline that studies how computers can simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, planning, etc.), and includes both hardware-level and software-level technologies. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, and big data processing; artificial intelligence software technologies mainly include computer vision technology, speech recognition technology, natural language processing technology, as well as machine learning / deep learning, big data processing technology, knowledge graph technology, and other major directions.

[0121] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0122] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A method for early warning of tire pressure loss, It is characterized in that The method comprises: Confirming a tire pressure reception rate calculation interval, wherein the tire pressure reception rate calculation interval is a time period during which the vehicle speed continuously meets a preset condition; In the tire pressure receiving rate calculation interval, receiving tire pressure data of the tire pressure signal, and counting the receiving rate of the tire pressure data; When the tire pressure data receiving rate is less than a preset receiving rate, a warning signal is set and output.

2. The method according to claim 1, It is characterized in that The calculation interval for confirming the tire pressure reception rate includes: In response to the vehicle speed being greater than or equal to a preset speed threshold, starting counting and recording a start time; In response to the vehicle speed being less than the preset speed threshold, stopping counting and recording the stop time; Determine the timing time according to the start time and the stop time; In a case where the timing time is greater than or equal to a preset time threshold, the interval from the start time to the stop time is used as a tire pressure reception rate calculation interval.

3. The method according to claim 2, It is characterized in that The tire pressure signal at least includes a tire pressure movement mode indication signal and a tire pressure monitoring signal, the tire pressure data includes a data packet, and within the tire pressure reception rate calculation interval, receiving the tire pressure data of the tire pressure signal and counting the reception rate of the tire pressure data includes: Determining the number of packets of the tire pressure signal that should be sent according to the timing time of the tire pressure receiving rate calculation interval, wherein there is a corresponding relationship between the timing time and the number of packets that should be sent, and the number of packets that should be sent is the number of the data packets that should be sent; In the tire pressure receiving rate calculation interval, the number of packet losses of the tire pressure signal that meets a first preset condition is counted, wherein the first preset condition includes: the tire pressure motion mode indication signal indicates a motion mode, and the tire pressure monitoring signal is 1; The difference between the number of packets that should be sent and the number of lost packets of the tire pressure signal is used as the number of actually received packets of the tire pressure signal, wherein the number of actually sent packets is the number of the data packets actually received; The ratio of the number of packets actually received of the tire pressure signal to the number of packets that should be sent is taken as the packet reception rate of the tire pressure signal, and the packet reception rate is the reception rate of the data packet.

4. The method according to claim 3, It is characterized in that The counting of the number of packet losses of the tire pressure signal that meets the first preset condition within the tire pressure reception rate calculation interval includes: In the tire pressure reception rate calculation interval, counting the reception time of each frame of data of the tire pressure signal that meets the first preset condition; Calculating the receiving time interval between two adjacent frames of the tire pressure signal data, and determining the number of the receiving time intervals that is greater than or equal to a preset time interval as the available number; Adding the receiving time intervals that are greater than or equal to the preset time interval to obtain a total time; The number of lost packets of the tire pressure signal is determined according to the total time and the available number.

5. The method according to claim 3, It is characterized in that The tire pressure data also includes a data frame. The receiving of the tire pressure data of the tire pressure signal within the tire pressure reception rate calculation interval and counting the reception rate of the tire pressure data include: Determining the number of frames of the tire pressure signal to be sent according to the timing time of the tire pressure receiving rate calculation interval, wherein the number of frames to be sent is the number of data frames that should be sent; In the tire pressure receiving rate calculation interval, counting the number of data frames of the tire pressure signal that meet the first preset condition, and determining the number as the actual received frame number, wherein the actual received frame number is the number of the data frames actually received; The ratio of the actually received frame number of the tire pressure signal to the frame number that should be sent is used as the frame receiving rate of the tire pressure signal, and the frame receiving rate is the receiving rate of the data frame.

6. The method according to any one of claims 2 to 5, It is characterized in that The method further comprises: Determining a maximum vehicle speed, a minimum vehicle speed, and an average vehicle speed within the tire pressure reception rate calculation interval; Output at least one of the following auxiliary information: the number of packets that should be sent, the number of packets actually received, the number of frames that should be sent, the number of frames actually received, the packet reception rate, the frame reception rate, the maximum vehicle speed, the minimum vehicle speed, the average vehicle speed within the tire pressure reception rate calculation interval, and the start time of the tire pressure reception rate calculation interval. The auxiliary information is used to assist in troubleshooting the cause of tire pressure loss based on the early warning signal.

7. A tire pressure loss warning device, It is characterized in that The device comprises: A determination module, used to confirm a tire pressure reception rate calculation interval, wherein the tire pressure reception rate calculation interval is a time period in which the vehicle speed continuously meets a preset condition; a statistical module, configured to receive tire pressure data of the tire pressure signal within the tire pressure reception rate calculation interval, and to count the reception rate of the tire pressure data; and The output module is used to set and output a warning signal when the tire pressure data receiving rate is less than a preset receiving rate.

8. An electronic device, include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

9. A vehicle, It is characterized in that include: The tire pressure loss warning device as claimed in claim 7 or the electronic device as claimed in claim 8.

10. A non-transitory computer-readable storage medium storing computer instructions, in, The computer instructions are used to cause the computer to execute the method according to any one of claims 1-6.

11. A computer program product, comprising a computer program, which, when executed by a processor, implements the method according to any one of claims 1 to 6.

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