CN106114085B

CN106114085B - Tyre pressure sensor front and back wheel location recognition method, apparatus and system

Info

Publication number: CN106114085B
Application number: CN201610697801.7A
Authority: CN
Inventors: 伍勇; 张子煜
Original assignee: Autel Intelligent Technology Corp Ltd
Current assignee: Autel Intelligent Technology Corp Ltd
Priority date: 2016-08-19
Filing date: 2016-08-19
Publication date: 2018-06-29
Anticipated expiration: 2036-08-19
Also published as: CN106114085A

Abstract

A kind of tyre pressure sensor front and back wheel location recognition method, apparatus and system, the method includes：It obtains and is located at the first transducing signal of first angle position for characterizing tyre pressure sensor and is located at the second transducing signal of second angle position and corresponding tyre pressure sensor identification code for characterizing the tyre pressure sensor；Record first number of first transducing signal obtained and second number of second transducing signal and the corresponding tyre pressure sensor identification code；According to second number and corresponding tyre pressure sensor identification code of first number of first transducing signal and second transducing signal, determine and the front and back wheel position residing for the corresponding tyre pressure sensor of the identification code.It is achieved thereby that the complexity of the data processing of tyre pressure sensor front and back wheel position identification is reduced in the case of not increasing cost.

Description

Method, device and system for identifying positions of front wheel and rear wheel of tire pressure sensor

Technical Field

The invention relates to the field of automobile tire monitoring, in particular to a method, a device and a system for identifying positions of front wheels and rear wheels of a tire pressure sensor.

Background

A real-time monitoring system (TPMS) for the pressure of car tyre is mainly used to automatically monitor the pressure of tyre when car is running and to alarm the leakage and low pressure of tyre for ensuring the running safety. The tire pressure monitoring module arranged on the automobile tire is a tire pressure sensor.

The TPMS firstly identifies each tire of a vehicle, and a tire pressure sensor of each tire of the vehicle checks whether the corresponding tire has air leakage and low air pressure, wherein in the process of identifying the tire by the TPMS, front and rear wheels need to be identified, and currently, three identification methods are commonly used.

The first is that each sensor is fixed before leaving the factory, and each sensor is installed on a front wheel, a rear wheel, a left wheel and a right wheel, and a corresponding receiving antenna is matched with the sensor.

The second is that the position of the tire pressure sensor of each wheel is defined in the receiving host machine through the change of the tire pressure when each tire of the automobile is inflated or deflated, the positioning process of the tire pressure sensor needs to be completed through manual operation, and if the tire pressure sensor is replaced or the learning content is lost, the learning operation needs to be carried out again, so that the product cost and the later maintenance cost are increased.

A third method for identifying front and rear wheels of a tire pressure sensor is disclosed in chinese patent document CN20140015336.5, and specifically includes installing a receiving antenna on a front bumper or a rear bumper of a vehicle, receiving a tire pressure signal or an acceleration signal of each tire, analyzing the strength of the received signal, and if the receiving antenna is installed on the rear bumper, installing data with high strength of the received tire pressure signal or acceleration signal on the receiving antenna corresponding to the rear wheels of the vehicle, and data with low strength of the received tire pressure signal or acceleration signal corresponding to the front wheels of the vehicle. The method is used for receiving and processing all information sent by all wheel tire pressure sensors in real time, and counting the strength relation of all received signals through probability statistics to judge front and rear wheels; secondly, the strength of the tire pressure sensor signal received by the receiving antenna is not only related to the distance, but also the hub has shielding and weakening effects on the transmitted signal, so that part of the rear wheel signal is weaker than the front wheel signal, misjudgment can be caused, the base number of probability statistics is larger, and data processing is more complicated.

Therefore, how to reduce the complexity of data processing for identifying the positions of the front and rear wheels of the tire pressure sensor without increasing the cost is an urgent problem to be solved.

Disclosure of Invention

The invention aims to solve the technical problem that the position of the front wheel and the rear wheel of the tire pressure sensor is complex to identify under the condition of not increasing the cost.

Therefore, the embodiment of the invention provides a method for identifying the positions of front and rear wheels of a tire pressure sensor, which comprises the following steps:

acquiring a first sensing signal for representing that the tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position and a corresponding tire pressure sensor identification code; recording the first times of the acquired first sensing signals, the second times of the acquired second sensing signals and the corresponding tire pressure sensor identification codes; and determining the positions of the front wheel and the rear wheel of the tire pressure sensor corresponding to the identification codes according to the first times of the first sensing signals, the second times of the second sensing signals and the corresponding tire pressure sensor identification codes.

Preferably, the acquiring the first sensing signal for indicating that the tire pressure sensor is located at the first angular position, the second sensing signal for indicating that the tire pressure sensor is located at the second angular position, and the corresponding tire pressure sensor identification code includes: acquiring a sensing signal and a tire pressure sensor identification code sent by a tire pressure sensor; judging whether the sensing signal contains first angle position information or second angle position information; when the sensing signal contains first angle position information or second angle position information, taking the sensing signal containing the first angle position information or the second angle position information as a first sensing signal for representing that the tire pressure sensor is located at a first angle position or a second sensing signal for representing that the tire pressure sensor is located at a second angle position; and recording the first sensing signal, the second sensing signal and the tire pressure sensor identification code in an associated manner.

Preferably, the recording of the first number of times of the acquired first sensing signal and the second number of times of the acquired second sensing signal and the corresponding tire pressure sensor identification code includes: judging whether the number of the obtained tire pressure sensor identification codes is larger than the number of wheels; when the number of the obtained tire pressure sensor identification codes is larger than the number of wheels, respectively calculating the first times of the first sensing signals and the second times of the second sensing signals corresponding to the obtained tire pressure sensor identification codes and the total times of the first sensing signals and the second sensing signals; the tire pressure sensor identification code with the maximum total number of times, which is the same as the number of wheels, and the corresponding first number of times and second number of times are retained.

Preferably, the retaining the tire pressure sensor identification code, which has the same number of wheels as the number of wheels, and the corresponding first number and second number of times includes: judging whether the total times corresponding to the tire pressure sensor identification codes are greater than the preset times or not; and when the total times corresponding to the tire pressure sensor identification codes are larger than the preset times, keeping the tire pressure sensor identification codes with the same number of wheels and the maximum total times and the corresponding first times and second times.

Preferably, determining the positions of the front and rear wheels where the tire pressure sensor corresponding to the identification code is located according to the first number of times of the first sensing signal, the second number of times of the second sensing signal and the corresponding tire pressure sensor identification code comprises: judging whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times corresponding to the tire pressure sensor is larger than a first preset value or not; if the difference value of the first proportion and the second proportion is larger than a first preset value, the tire pressure sensor is positioned at the rear wheel position; or judging whether the difference value of a second proportion of the second times in the total times corresponding to the tire pressure sensor and a first proportion of the first times in the total times is larger than a second preset value or not; if the difference between the second ratio and the first ratio is greater than a second preset value, the tire pressure sensor is in the front wheel position.

Preferably, a first distance from the sensing signal receiving device to the front wheels of the vehicle is smaller than a second distance from the rear wheels; before judging whether the difference value between the first proportion of the first times in the total times and the second proportion of the second times in the total times corresponding to the tire pressure sensor is greater than a first preset value, the method further comprises the following steps: dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times; judging whether the difference value of the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value; if the difference value is larger than a third preset value, judging whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times, which correspond to the tire pressure sensor, is larger than the first preset value; or, whether the difference value between the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is greater than a second preset value or not is judged, and the method further comprises the following steps: dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times; judging whether the difference value of the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value; and if the difference value is larger than the third preset value, judging whether the difference value of the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is larger than the second preset value.

Preferably, a first distance from the sensing signal receiving device to the front wheels of the vehicle is smaller than a second distance from the rear wheels; divide into first identification code group and second identification code group with the tire pressure sensor identification code that corresponds according to first number of times, still include before: dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times; judging whether the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value; and if the difference value is greater than the fourth preset value, the step of dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number is carried out.

Preferably, the first distance from the sensing signal receiving device to the front wheels of the vehicle is greater than the second distance from the rear wheels; before judging whether the difference value between the first proportion of the first times in the total times and the second proportion of the second times in the total times corresponding to the tire pressure sensor is greater than a first preset value, the method further comprises the following steps: dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times; judging whether the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value; if the difference value is larger than the fourth preset value, judging whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times, which correspond to the tire pressure sensor, is larger than the first preset value; or, before determining whether a difference between a second ratio of the second times in the total times corresponding to the tire pressure sensor and a first ratio of the first times in the total times is greater than a second preset value, the method further includes: dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times; judging whether the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value; and if the difference value is larger than the fourth preset value, judging whether the difference value of the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is larger than the second preset value.

Preferably, the first distance from the sensing signal receiving device to the front wheels of the vehicle is greater than the second distance from the rear wheels; dividing the corresponding tire pressure sensor identification code into a third identification code group and a fourth identification code group according to the second number, and further comprising the following steps: dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times; judging whether the difference value of the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value; and if the difference value is larger than a third preset value, the step of dividing the corresponding tire pressure sensor identification code into a third identification code group and a fourth identification code group according to the second number is carried out.

The embodiment of the invention also provides a device for identifying the front wheel and the rear wheel of the tire pressure sensor, which comprises the following components:

the acquiring module is used for acquiring a first sensing signal for representing that the tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position and a corresponding tire pressure sensor identification code; the recording module is used for recording the first times of the acquired first sensing signals, the second times of the acquired second sensing signals and the corresponding tire pressure sensor identification codes; and the processing module is used for determining the positions of the front wheel and the rear wheel of the tire pressure sensor corresponding to the identification codes according to the first times of the first sensing signals, the second times of the second sensing signals and the corresponding tire pressure sensor identification codes.

Preferably, the acquisition module comprises: the acquisition submodule is used for acquiring a sensing signal and a tire pressure sensor identification code sent by a tire pressure sensor; the first judgment submodule is used for judging whether the sensing signal contains first angle position information or second angle position information; the first confirming submodule is used for taking the sensing signal containing the first angle position information or the second angle position information as a first sensing signal for representing that the tire pressure sensor is positioned at the first angle position or a second sensing signal for representing that the tire pressure sensor is positioned at the second angle position when the sensing signal contains the first angle position information or the second angle position information; and the association recording unit is used for associating and recording the first sensing signal, the second sensing signal and the tire pressure sensor identification code.

Preferably, the recording module includes: the second judgment submodule is used for judging whether the number of the acquired tire pressure sensor identification codes is larger than the number of wheels; the calculation submodule is used for respectively calculating the first times of the first sensing signals and the second times of the second sensing signals corresponding to the obtained tire pressure sensor identification codes and the total times of the first sensing signals and the second sensing signals when the number of the obtained tire pressure sensor identification codes is larger than the number of wheels; and the reserving submodule is used for reserving the tire pressure sensor identification code with the maximum total times and the corresponding first times and second times, wherein the number of the tire pressure sensor identification codes is the same as that of the wheels.

Preferably, the retention sub-module comprises: the judging unit is used for judging whether the total times corresponding to the tire pressure sensor identification codes are larger than the preset times or not; and the reserving unit is used for reserving the tire pressure sensor identification code with the maximum total times which is the same as the number of the wheels, and the corresponding first times and second times when the total times corresponding to the tire pressure sensor identification code is greater than the preset times.

Preferably, the processing module comprises: the third judgment submodule is used for judging whether the difference value of the first proportion of the first times in the total times and the second proportion of the second times in the total times, which correspond to the tire pressure sensor, is greater than the first preset value; the second confirming submodule is used for determining that the tire pressure sensor is at the rear wheel position if the difference value of the first proportion and the second proportion is larger than the first preset value; or, the processing module comprises: a fourth judgment sub-module: the tire pressure sensor is used for judging whether the difference value of a second proportion of the second times in the total times corresponding to the tire pressure sensor and a first proportion of the first times in the total times is larger than a second preset value or not; a third confirmation submodule: and the tire pressure sensor is positioned at the front wheel position if the difference value of the second proportion and the first proportion is larger than a second preset value.

Preferably, a first distance from the sensing signal receiving device to the front wheels of the vehicle is smaller than a second distance from the rear wheels; the processing module further comprises: a first grouping submodule: the tire pressure sensor identification code processing device is used for dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number; a fifth judgment sub-module: the device is used for judging whether the difference value of the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value; a first entry submodule: if the difference value is larger than a third preset value, the step of judging whether the difference value of a first proportion of a first time in the total times and a second proportion of a second time in the total times, which correspond to the tire pressure sensor, is larger than the first preset value is carried out; or, the processing module comprises: the second grouping module is used for dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first number; a sixth judgment sub-module: the device is used for judging whether the difference value of the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value; a second entering submodule: and if the difference value is larger than a third preset value, the step of judging whether the difference value of a second proportion of the second times in the total times corresponding to the tire pressure sensor and a first proportion of the first times in the total times is larger than a second preset value or not is carried out.

Preferably, the processing module further comprises: a third grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second number; a seventh judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is judged whether to be greater than a fourth preset value; a third import submodule: and if the difference value is greater than the fourth preset value, the step of dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number is carried out.

Preferably, the first distance from the sensing signal receiving device to the front wheels of the vehicle is greater than the second distance from the rear wheels, and the processing module further comprises: a fourth grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second number; an eighth judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is judged whether to be greater than a fourth preset value; a fourth entering submodule: the tire pressure sensor is used for judging whether the difference value of a first proportion of a first time in the total times and a second proportion of a second time in the total times corresponding to the tire pressure sensor is larger than a first preset value or not if the difference value is larger than a fourth preset value; alternatively, the processor further comprises: a fifth grouping submodule: dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times; a ninth judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is judged whether to be greater than a fourth preset value; a fifth entering submodule: and if the difference value is larger than the fourth preset value, the step of judging whether the difference value of the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is larger than a second preset value or not is carried out.

Preferably, the processing module further comprises: a sixth grouping submodule: the tire pressure sensor identification code processing device is used for dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number; a tenth judging submodule, configured to judge whether a difference between a sum of the first times corresponding to each identification code of the first identification code group and a sum of the first times corresponding to each identification code of the second identification code group is greater than a third preset value; a sixth entering submodule: and if the difference value is greater than a third preset value, the step of dividing the corresponding tire pressure sensor identification code into a third identification code group and a fourth identification code group according to the second number is carried out.

The embodiment of the invention further provides a system for identifying the front wheel and the rear wheel of the tire pressure sensor, which comprises the following components: the tire pressure sensor is used for acquiring and transmitting a first sensing signal containing a first angle position and a second sensing signal containing a second angle position; the sensing signal receiving device is placed between a front wheel and a rear wheel of the automobile and used for receiving signals sent by the tire pressure sensor; and the processor is connected with the sensing signal receiving device and is used for executing the front and rear wheel position identification method of the tire pressure sensor.

Preferably, the tire pressure sensor sequentially collects and transmits the first sensing signal and the second sensing signal at intervals.

According to the method, the device and the system for identifying the front wheel and the rear wheel of the tire pressure sensor, provided by the embodiment of the invention, the first sensing signal for representing that the tire pressure sensor is positioned at the first angle position, the second sensing signal for representing that the tire pressure sensor is positioned at the second angle position and the corresponding tire pressure sensor identification code are obtained, the first frequency of the obtained first sensing signal, the second frequency of the obtained second sensing signal and the corresponding tire pressure sensor identification code are recorded, and the position of the front wheel and the rear wheel of the tire pressure sensor corresponding to the identification code is determined according to the first frequency, the second frequency and the corresponding tire pressure sensor identification code, so that the complexity of data processing of the position identification of the front wheel and the rear wheel of the tire pressure sensor is reduced under the condition of not increasing the cost.

As a preferred technical scheme, the tire pressure sensor adds the first angle position information and the second angle position information into data sent by the tire pressure sensor, the processor acquires the axial rotation angle information of the wheel identified by the tire pressure sensor, when the tire pressure sensor reaches the first angle position or the second angle position, the processor sends a control signal to control the tire pressure sensor to send first sensing data or second sensing data, the sensing signal receiving device receives the data and inputs the data to the processor, the processor records the times of receiving the first sensing signal and the second sensing signal, the positions of the front and rear wheels of the tire pressure sensor are identified by comparing the recorded differences in the number of times of the first sensing signal and the second sensing signal, therefore, the complexity of data processing of front and rear wheel position identification of the tire pressure sensor can be reduced on the basis of the original real-time monitoring system for the tire pressure of the automobile without increasing the cost.

As an optimal technical scheme, the tire pressure sensor sequentially collects and sends the first sensing signals and the second sensing signals at intervals, so that the times of sending the first sensing signals and the times of sending the second sensing signals by the tire pressure sensor are consistent, and the front wheel and the rear wheel of the tire pressure sensor are identified more accurately.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 shows a schematic view of the orientation of a tire pressure sensor on a wheel according to embodiment 1 of the present invention;

fig. 2 is a flowchart illustrating a front and rear wheel position identifying method of a tire pressure sensor according to embodiment 1 of the present invention;

fig. 3 is another flowchart illustrating a front and rear wheel position identifying method of a tire pressure sensor according to embodiment 1 of the present invention;

fig. 4 is a schematic diagram showing a distribution of signal receiving apparatuses according to an embodiment of the present invention;

fig. 5 is another flowchart illustrating a front and rear wheel position identifying method of a tire pressure sensor according to embodiment 1 of the present invention;

fig. 6 shows another schematic diagram of a signal receiving device distribution of an embodiment of the present invention;

fig. 7 is a schematic flow chart showing acquisition of a first sensor signal and a second sensor signal according to embodiment 1 of the present invention;

fig. 8 is a third flowchart illustrating a front and rear wheel position identifying method of a tire pressure sensor according to embodiment 1 of the present invention;

fig. 9 is a schematic view showing a front and rear wheel position identifying device of a tire pressure sensor according to embodiment 2 of the invention;

fig. 10 shows a schematic view of a front and rear wheel position identification system of a tire pressure sensor according to embodiment 3 of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

The present embodiment discloses a tire pressure sensor front and rear wheel position identification method, which identifies the tire pressure sensor front and rear wheel positions using a sensing signal transmitted from a tire pressure sensor 1 mounted on a wheel 2, see fig. 1.

As shown in fig. 2, the method for identifying the positions of the front and rear wheels of the tire pressure sensor of the present embodiment includes the steps of:

s11, acquiring a first sensing signal for representing that the tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position, and a corresponding tire pressure sensor identification code.

in a specific embodiment, as shown in fig. 1, the first angular position may be a position where the tire pressure sensor is located in front of the wheel of the vehicle, for example, an angle of a certain angle range upward or downward in front of the wheel of the vehicle, for example, the angle may be α₁，α₁may be 10, 20 or 30 in α particular embodiment, the first angular position may be preset, for example, the angle α may be set directly in front of the wheel or in the upward direction directly in front of the wheel₁in this embodiment, the first sensing signal may be a sensing signal of tire pressure, acceleration of an automobile wheel or tire temperature including the first angular position information, and when the tire pressure sensor rotates to the first angular position along with the wheel, the tire pressure sensor transmits the first sensing signal, in a specific embodiment, the step of obtaining the second sensing signal is similar to the step of obtaining the first sensing signal, as shown in fig. 1, the second angular position may be a position where the tire pressure sensor is located behind the automobile wheel, for example, an angle within a certain angle range in the direction right behind the automobile wheel or right behind the automobile wheel, or downward, for example, the angle may be α₂，α₂may be 10 °, 20 ° or 30 ° in a specific embodiment, the second angular position may be preset, for example, the angle α may be set right behind or in the right behind direction of the wheel₂At a second angle position of 20 DEG, writing the second angle position information into the tire pressure sensorIn the signal to be transmitted, a second sensing signal is formed, in this embodiment, the second sensing signal may be a sensing signal of tire pressure, automobile wheel acceleration or tire temperature including the second angular position information, and when the tire pressure sensor rotates to the second angular position along with the wheel, the tire pressure sensor transmits the second sensing signal. After the first sensing signal and the second sensing signal are obtained, the sensing signals can be analyzed to obtain tire pressure sensor identification codes corresponding to the wheels.

And S12, recording the first times of the acquired first sensing signals, the second times of the acquired second sensing signals and the corresponding tire pressure sensor identification codes. In a specific embodiment, when the processor acquires the first sensing signal each time, recording the number of times of acquiring the first sensing signal once, and counting the total number of times of acquiring the first sensing signal as the first number of times of the first sensing signal; and when the processor acquires the second sensing signal each time, recording the times of acquiring the second sensing signal once, and counting the total times of acquiring the second sensing signal as the second times of the second sensing signal. Meanwhile, the tire pressure sensor identification codes corresponding to the wheels can be used as the index information of the wheels, and the total times of acquiring the first sensing signals and the second sensing signals of the corresponding tire pressure sensors is recorded according to the tire pressure sensing identification codes.

S13, determining the positions of the front wheel and the rear wheel of the tire pressure sensor corresponding to the identification codes according to the first times of acquiring the first sensing signals, the second times of acquiring the second sensing signals and the corresponding tire pressure sensor identification codes.

The method comprises the steps of recording a first frequency of an acquired first sensing signal, a second frequency of a second sensing signal and a corresponding tire pressure sensor identification code by acquiring a first sensing signal for representing that a tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position and the corresponding tire pressure sensor identification code, and determining the positions of front and rear wheels where the tire pressure sensor corresponding to the identification code is located according to the first frequency, the second frequency and the corresponding tire pressure sensor identification code, so that the complexity of data processing of the position identification of the front and rear wheels of the tire pressure sensor can be reduced on the basis of the original real-time monitoring system of the tire pressure of the automobile without increasing the cost.

It should be noted that, in the step S11, the execution order of acquiring the first sensing signal and acquiring the second sensing signal may be switched, that is, the first sensing signal may be acquired first and then the second sensing signal is acquired, the second sensing signal may be acquired first and then the first sensing signal is acquired, or the first sensing signal and the second sensing signal may be acquired simultaneously.

In order to ensure the accuracy of the position identification of the front wheel and the rear wheel of the tire pressure sensor, two cases in which the signal receiving device is disposed near the front wheel and near the rear wheel are separately described in this embodiment.

Fig. 3 illustrates a front and rear wheel position identification method of a tire pressure sensor according to another embodiment of the present invention, which is adapted such that a first distance from a signal receiving device to a front wheel of a vehicle is smaller than a second distance to a rear wheel, and may include the steps of:

s21 obtains a first sensing signal indicating that the tire pressure sensor is located at a first angular position, a second sensing signal indicating that the tire pressure sensor is located at a second angular position, and a corresponding tire pressure sensor identification code. See the above description of step S11 for details.

And S22, recording the first times of the acquired first sensing signals, the second times of the acquired second sensing signals and the corresponding tire pressure sensor identification codes. See the above description of step S12 for details.

And S23, dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times. In a specific embodiment, the corresponding tire pressure sensor identification codes may be sorted according to the second number of times of the acquired second sensing signal, for example, the identification codes of the tire pressure sensors may be sorted in a descending order according to the second number of times of the acquired second sensing signal of each tire pressure sensor, and all the tire pressure sensor identification codes may be grouped into two groups according to the sort order, for example, in a four-wheeled automobile, the third identification code group may be the first two in the sort order, the fourth identification code group may be the last two in the sort order, and in an automobile with more than four wheels, only the identification codes arranged in the first two may be taken as the third identification code group, and the identification codes arranged in the last two may be taken as the fourth identification code group.

And S24, judging whether the difference value between the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value. If the difference is greater than the fourth preset value, the step S25 is executed; if the difference is less than or equal to the fourth preset value, return is made to step S21.

And S25, dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times.

S26, judging whether the difference value between the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value. If the difference is greater than the third preset value, the process proceeds to step S27, and if the difference is less than or equal to the third preset value, the process returns to step S21.

S27, whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times corresponding to the tire pressure sensor is larger than a first preset value or not is judged. If the difference between the first ratio and the second ratio is greater than the first preset value, the process proceeds to step S28, and if the difference between the first ratio and the second ratio is less than or equal to the first preset value, the process returns to step S21.

And S28, judging that the tire pressure sensor is in the rear wheel position.

The principle of the front and rear wheel position identifying method of the tire pressure sensor of the present embodiment will be described in detail with reference to fig. 4.

As shown in fig. 4, a first distance from the sensing signal receiving device to the front wheel of the vehicle is less than a second distance from the front wheel of the vehicle, that is, the sensing signal receiving device is disposed at a position close to the front wheel, since the closer the distance is, the higher the probability of the obtained sensing signal is, the more obvious the difference between the number of times of the obtained second sensing signal sent backward by the front tire pressure sensor and the number of times of the obtained first sensing signal sent forward by the rear tire pressure sensor and the number of times of the obtained second sensing signal sent backward is, when the signal receiving device is disposed at a position close to the front wheel, the positions of the front and rear wheels where the tire pressure sensor is located can be pre-determined by the number of times of the second sensing signal, the positions of the front and rear wheels where the tire pressure sensor is located can be verified by the number of times of the first sensing signal, and after the pre-determined result is obtained, in order to ensure the accuracy of the result, the tire pressure sensors need to be verified separately, whether the difference value of the first proportion of the times of the first sensing signals sent by the tire pressure sensors in the total times and the second proportion of the times of the second sensing signals in the total times is larger than a first preset value or not is verified separately, and when the difference value is larger than the first preset value, the tire pressure sensors are located at the rear wheel positions.

Fig. 5 illustrates a front and rear wheel position identification method of a tire pressure sensor according to another embodiment of the present invention, which is adapted such that a first distance from a signal receiving device to a front wheel of a vehicle is greater than a second distance to a rear wheel, and may include the steps of:

s31 obtains a first sensing signal indicating that the tire pressure sensor is located at a first angular position, a second sensing signal indicating that the tire pressure sensor is located at a second angular position, and a corresponding tire pressure sensor identification code. See the above description of step S11 for details.

And S32, recording the first times of the acquired first sensing signals, the second times of the acquired second sensing signals and the corresponding tire pressure sensor identification codes. See the above description of step S12 for details.

And S33, dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times. See the above description of step S23 for details.

S34, judging whether the difference value between the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value. If the difference is greater than the third preset value, the process proceeds to step S35, and if the difference is less than or equal to the third preset value, the process returns to step S31.

And S35, dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times.

S36, judging whether the difference value between the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value. If the difference is greater than the fourth preset value, the process proceeds to step S37, and if the difference is less than or equal to the fourth preset value, the process proceeds to step S31.

S37, whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times corresponding to the tire pressure sensor is larger than a first preset value or not is judged. If the difference between the first ratio and the second ratio is greater than the first preset value, the process proceeds to step S38, and if the difference between the first ratio and the second ratio is less than or equal to the first preset value, the process proceeds to step S31.

And S38, judging that the tire pressure sensor is in the rear wheel position.

The principle of the front and rear wheel position identifying method of the tire pressure sensor of the present embodiment will be described in detail with reference to fig. 6. The first distance between the sensing signal receiving device and the front wheel of the vehicle is greater than the second distance between the sensing signal receiving device and the rear wheel, namely the sensing signal receiving device is arranged at a position close to the rear wheel, the pre-judgment can be carried out according to the times of the second sensing signals, the verification is carried out according to the times of the first sensing signals, after the pre-judgment result is obtained, in order to ensure the accuracy of the result, each tire pressure sensor needs to be verified independently, whether the difference value of the first proportion of the times of the first sensing signals sent by the acquired tire pressure sensors in the total times and the second proportion of the times of the second sensing signals in the total times is greater than a first preset value or not is verified independently, and when the difference value is greater than the first preset value, the tire pressure sensors are positioned at the rear wheel.

In a preferred embodiment, the determination may be made using a difference between a ratio of the second number of times of the second sensing signal in the total number and a ratio of the number of times of the second sensing signal in the total number when the individual tire pressure sensors are individually verified. In a specific embodiment, whether the difference value between the second proportion of the second times in the total times and the first proportion of the first times in the total times corresponding to the tire pressure sensor is greater than a second preset value is judged; if the difference between the second ratio and the first ratio is greater than a second preset value, the tire pressure sensor is in the front wheel position.

The method comprises the steps of recording a first frequency of an acquired first sensing signal, a second frequency of a second sensing signal and a corresponding tire pressure sensor identification code by acquiring a first sensing signal for representing that a tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position and the corresponding tire pressure sensor identification code, and determining the positions of front and rear wheels where the tire pressure sensor is located according to the comparison between the difference between the first frequency and the second frequency and a preset value, thereby reducing the complexity of data processing of the position identification of the front and rear wheels of the tire pressure sensor on the basis of the original real-time monitoring system of the tire pressure of the automobile without increasing the cost.

In order to avoid interference of other signals and ensure that the acquired signals are all sensing signals containing the first angular position information or the second angular position information, as shown in fig. 7, step S11 may include:

and S111, acquiring a sensing signal and a tire pressure sensor identification code sent by the tire pressure sensor.

And S112, judging whether the sensing signal contains the first angle position information or the second angle position information. When the sensing signal contains the first angle position information or the second angle position information, the step S113 is performed; when the sensing signal does not contain the first angular position information or the second angular position information, the flow proceeds to step S114.

And S113, taking the sensing signal containing the first angle position information or the second angle position information as a first sensing signal for representing that the tire pressure sensor is located at the first angle position or a second sensing signal for representing that the tire pressure sensor is located at the second angle position.

And S114, deleting the sensing signal.

And S115, the first sensing signal, the second sensing signal and the tire pressure sensor identification code are recorded in a correlated mode.

The principle of the present embodiment of determining whether or not the sensing signal contains the first angular position information and determining whether or not the sensing signal contains the second angular position information will be described in detail below.

Since other interference signals may be acquired when the sensing signal is acquired, in this embodiment, it is taken as an example to determine whether the sensing signal includes the first angular position information. The identifier representing the first angular position information may be added to the sensing signal sent by the tire pressure sensor, for example, the first angular position information may be represented by a value "1", and after receiving the sensing signal sent by the tire pressure sensor, it is verified whether the sensing signal includes the identifier representing the first angular position information. Specifically, the sensing signals sent forward by the tire pressure sensor of the vehicle all include the first angle position information, and the first angle position information can be represented by identifying whether the first angle position information identifier is added to the acquired sensing signals. Similarly, an identifier that represents the second angular position information may be added to the sensing signal transmitted by the tire pressure sensor. For example, the value "0" may be used to indicate the second angular position information, and the sensing signal may be used as the second sensing signal for indicating the second angular position of the tire pressure sensor by identifying whether or not the identifier indicating the first angular position information is added to the sensing signal, and when the first angular position information identifier is included in the received sensing signal. It should be noted that, because the first sensing signal and the second sensing signal have a fixed angle when being transmitted, the identifier representing the first angle position information and the identifier representing the second angle position information do not appear in the same sensing signal at the same time.

In an actual application process, since the same vehicle may exist and also sends a sensing signal containing angle position information, if a first sensing signal or a second sensing signal sent by another vehicle is received, the result may be affected, and in order to avoid the effect of the other vehicle, fig. 8 shows a method for identifying front and rear wheel positions of a tire pressure sensor according to another embodiment of the present invention, which may include the following steps:

s41, acquiring a first sensing signal for representing that the tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position, and a corresponding tire pressure sensor identification code. See the above description of step S11 for details.

And S42, judging whether the number of the obtained tire pressure sensor identification codes is larger than the number of the wheels. When the number of the acquired tire pressure sensor identification codes is larger than the number of the wheels, the process proceeds to step S43, and when the number of the acquired tire pressure sensor identification codes is smaller than the number of the wheels, the process returns to step S41.

S43, respectively calculating the total times of the first sensing signals and the second sensing signals corresponding to the obtained tire pressure sensor identification codes.

And S44, reserving the tire pressure sensor identification codes with the same number as the wheels and the maximum total times and the corresponding times of the first sensing signals and the second sensing signals. In a specific embodiment, the first sensing signal and the second sensing signal which are sent by other vehicle tires exist in the acquired first sensing signal and second sensing signal due to the possibility of other interference similar to the automobile; according to actual conditions, the times of receiving the first sensing signals and the second sensing signals from other vehicles are few, and only the tire pressure sensor identification codes with the same number of wheels and the maximum total times and the corresponding first sensing signals and second sensing signals need to be reserved, and the first sensing signals and the second sensing signals corresponding to the other tire pressure sensor identification codes are deleted.

S45, determining the positions of the front wheel and the rear wheel of the tire pressure sensor corresponding to the identification codes according to the first times of acquiring the first sensing signals, the second times of acquiring the second sensing signals and the corresponding tire pressure sensor identification codes.

In order to reduce the complexity of data processing, prevent the data size from being too large, and at the same time ensure that the acquired signal has a sufficient base number, and reduce the error in data processing, in a preferred embodiment, before step S44, the method may further include:

s46, judging whether the total times corresponding to the tire pressure sensor identification codes are larger than the preset times or not. When the total number of times corresponding to the tire pressure sensor identification code is greater than the preset number of times, the process proceeds to step S44, and when the total number of times corresponding to the tire pressure sensor identification code is less than or equal to the preset number of times, the process returns to step S41.

The method comprises the steps of recording a first frequency of an acquired first sensing signal, a second frequency of a second sensing signal and a corresponding tire pressure sensor identification code by acquiring a first sensing signal for representing that a tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position and the corresponding tire pressure sensor identification code, deleting the influence of other vehicle sensing signals through the corresponding tire pressure sensor identification code, and determining the position of a front wheel and a rear wheel where the tire pressure sensor corresponding to the identification code is located according to the first frequency, the second frequency and the corresponding tire pressure sensor identification code, thereby realizing the reduction of the complexity of data processing of the position identification of the front wheel and the rear wheel of the tire pressure sensor without increasing the cost.

Example 2

The embodiment also discloses a tire pressure sensor front and rear wheel position recognition device, as shown in fig. 9, the device includes: the obtaining module 100 records the module 200 and the processing module 300, wherein:

the acquiring module 100 is configured to acquire a first sensing signal indicating that the tire pressure sensor is located at a first angle position, a second sensing signal indicating that the tire pressure sensor is located at a second angle position, and a corresponding tire pressure sensor identification code; the recording module 200 is configured to record a first number of times of the acquired first sensing signal, a second number of times of the acquired second sensing signal, and a corresponding tire pressure sensor identification code; the processing module 300 is configured to determine, according to the first number of times of the first sensing signal, the second number of times of the second sensing signal, and the corresponding tire pressure sensor identification code, the front and rear wheel positions where the tire pressure sensor corresponding to the identification code is located.

In a preferred embodiment the acquisition module 100 comprises: the acquisition submodule is used for acquiring a sensing signal and a tire pressure sensor identification code sent by a tire pressure sensor; the first judgment submodule is used for judging whether the sensing signal contains first angle position information or second angle position information; the first confirming submodule is used for taking the sensing signal containing the first angle position information or the second angle position information as a first sensing signal for representing that the tire pressure sensor is positioned at the first angle position or a second sensing signal for representing that the tire pressure sensor is positioned at the second angle position when the sensing signal contains the first angle position information or the second angle position information; and the association recording submodule is used for associating and recording the first sensing signal, the second sensing signal and the tire pressure sensor identification code.

In a preferred embodiment, the logging module 200 includes: the second judgment submodule is used for judging whether the number of the acquired tire pressure sensor identification codes is larger than the number of wheels; the calculation submodule is used for respectively calculating the first times of the first sensing signals and the second times of the second sensing signals corresponding to the obtained tire pressure sensor identification codes and the total times of the first sensing signals and the second sensing signals when the number of the obtained tire pressure sensor identification codes is larger than the number of wheels; and the reserving submodule is used for reserving the tire pressure sensor identification code with the maximum total times and the corresponding first times and second times, wherein the number of the tire pressure sensor identification codes is the same as that of the wheels.

In a preferred embodiment, the reservation submodule comprises: the judging unit is used for judging whether the total times corresponding to the tire pressure sensor identification codes are larger than the preset times or not; and the reserving unit is used for reserving the tire pressure sensor identification code with the maximum total times which is the same as the number of the wheels, and the corresponding first times and second times when the total times corresponding to the tire pressure sensor identification code is greater than the preset times.

In a preferred embodiment, the processing module 300 includes:

the third judgment submodule is used for judging whether the difference value of the first proportion of the first times in the total times and the second proportion of the second times in the total times, which correspond to the tire pressure sensor, is greater than the first preset value; the second confirming submodule is used for determining that the tire pressure sensor is at the rear wheel position if the difference value of the first proportion and the second proportion is larger than the first preset value; alternatively, the processing module 300 includes: a fourth judgment sub-module: the tire pressure sensor is used for judging whether the difference value of a second proportion of the second times in the total times corresponding to the tire pressure sensor and a first proportion of the first times in the total times is larger than a second preset value or not; a third confirmation submodule: and the tire pressure sensor is positioned at the front wheel position if the difference value of the second proportion and the first proportion is larger than a second preset value.

In a preferred embodiment, the first distance from the sensing signal receiving device to the front wheels of the vehicle is less than the second distance to the rear wheels; the processing module 300 may further include: a first grouping submodule: the tire pressure sensor identification code processing device is used for dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number; a fifth judgment sub-module: the device is used for judging whether the difference value of the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value; a first entry submodule: if the difference value is larger than a third preset value, the step of judging whether the difference value of a first proportion of a first time in the total times and a second proportion of a second time in the total times, which correspond to the tire pressure sensor, is larger than the first preset value is carried out; alternatively, the processing module 300 includes: the second grouping module is used for dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first number; a sixth judgment sub-module: the device is used for judging whether the difference value of the sum of the first times corresponding to the identification codes of the first identification code group and the sum of the first times corresponding to the identification codes of the second identification code group is larger than a third preset value; a second entering submodule: and if the difference value is larger than a third preset value, the step of judging whether the difference value of a second proportion of the second times in the total times corresponding to the tire pressure sensor and a first proportion of the first times in the total times is larger than a second preset value or not is carried out.

In a preferred embodiment, the processing module 300 may further include: a third grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second number; a seventh judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is judged whether to be greater than a fourth preset value; a third import submodule: and if the difference value is greater than the fourth preset value, the step of dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number is carried out.

In a preferred embodiment, the sensing signal receiving means is located a first distance from the front wheels of the vehicle greater than a second distance from the rear wheels; the processing module 300 may further include: a fourth grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second number; an eighth judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is judged whether to be greater than a fourth preset value; a fourth entering submodule: the tire pressure sensor is used for judging whether the difference value of a first proportion of a first time in the total times and a second proportion of a second time in the total times corresponding to the tire pressure sensor is larger than a first preset value or not if the difference value is larger than a fourth preset value; alternatively, the processor 300 may further include: a fifth grouping submodule: dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times; a ninth judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is judged whether to be greater than a fourth preset value; a fifth entering submodule: and if the difference value is larger than the fourth preset value, the step of judging whether the difference value of the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is larger than a second preset value or not is carried out.

In a preferred embodiment, the processing module 300 may further include: a sixth grouping submodule: the tire pressure sensor identification code processing device is used for dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number; a tenth judging submodule, configured to judge whether a difference between a sum of the first times corresponding to each identification code of the first identification code group and a sum of the first times corresponding to each identification code of the second identification code group is greater than a third preset value; a sixth entering submodule: and if the difference value is greater than a third preset value, the step of dividing the corresponding tire pressure sensor identification code into a third identification code group and a fourth identification code group according to the second number is carried out.

Example 3

The present embodiment also discloses a tire pressure sensor front and rear wheel position identification system, as shown in fig. 10, the system includes: tire pressure sensor 1000, sensing signal receiving means 2000 and processor 3000, wherein:

the tire pressure sensor 1000 is configured to collect and transmit a first sensing signal including a first angular position and a second sensing signal including a second angular position. In a specific embodiment, the tire pressure sensor 1000 provided with an acceleration sensor may be selected, the processor 3000 may identify an angular position of the tire pressure sensor 1000 on the wheel by using the acceleration value of the wheel, and the tire pressure sensor 1000 may add preset angular position information to the signal sent by the tire pressure sensor 1000, for example, a value "1" represents the first angular position, and an angle value "0" represents the second angular position. When recognizing that the tire pressure sensor 1000 reaches the preset angle, the processor 3000 outputs a control signal to control the tire pressure sensor 1000 to transmit a sensing signal including the preset angle position, for example, when the tire pressure sensor reaches the first angle position, a first sensing signal including the first angle position may be transmitted, and when the tire pressure sensor reaches the second angle position, a second sensing signal including the second angle position may be transmitted.

The sensing signal receiving device 2000 may be disposed between a front wheel and a rear wheel of the vehicle, and is configured to receive a signal transmitted from the tire pressure sensor 1000.

The processor 3000 is connected to the sensing signal receiving device 2000, and is configured to execute a program to implement the method for identifying the front and rear wheel positions of the tire pressure sensor 1000 in any one of the steps S10 to 30 in embodiment 1.

In a preferred embodiment, the tire pressure sensor 1000 sequentially collects and transmits the first sensing signal and the second sensing signal at intervals. In a specific embodiment, the total number of times of transmitting the signals may be predetermined, which may be even, and it may be ensured that the first sensing signal and the second sensing signal transmitted by the tire pressure sensor 1000 are the same, specifically, if the first sensing signal is currently transmitted and the tire pressure sensor 1000 reaches the second angular position, the second sensing signal is transmitted until the remaining number of times of transmission is zero, so that it may be avoided that an erroneous determination is made due to the different numbers of times of transmission of the tire pressure sensor 1000 when determining the difference between the numbers of the first effective number of times and the second effective number of times.

The first angle position information and the second angle position information are added into the data sent by the tire pressure sensor through the tire pressure sensor, the processor acquires the axial rotation angle information of the wheel identified by the tire pressure sensor, when the tire pressure sensor reaches the first angle position or the second angle position, the processor sends a control signal to control the tire pressure sensor to send first sensing data or second sensing data, the sensing signal receiving device receives the data and inputs the data to the processor, the processor records the effective times of the received first sensing signal and the second sensing signal, the positions of the front and rear wheels of the tire pressure sensor are identified by comparing the difference of the recorded effective times of the first sensing signal and the second sensing signal, therefore, the complexity of data processing of front and rear wheel position identification of the tire pressure sensor can be reduced on the basis of the original real-time monitoring system for the tire pressure of the automobile without increasing the cost.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for identifying the positions of front and rear wheels of a tire pressure sensor is characterized by comprising the following steps:

acquiring a first sensing signal for representing that a tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position and a corresponding tire pressure sensor identification code;

recording the first times of the acquired first sensing signals, the second times of the acquired second sensing signals and the corresponding tire pressure sensor identification codes;

and determining the positions of the front wheel and the rear wheel of the tire pressure sensor corresponding to the identification code according to the first times of the first sensing signals, the second times of the second sensing signals and the corresponding tire pressure sensor identification code.

2. The tire pressure sensor front and rear wheel position identification method according to claim 1, wherein the acquiring of the first sensing signal for indicating that the tire pressure sensor is located at the first angular position and the second sensing signal for indicating that the tire pressure sensor is located at the second angular position and the corresponding tire pressure sensor identification code comprises:

acquiring a sensing signal and a tire pressure sensor identification code sent by a tire pressure sensor;

judging whether the sensing signal contains first angle position information or second angle position information;

when the sensing signal contains the first angle position information or the second angle position information, taking the sensing signal containing the first angle position information or the second angle position information as the first sensing signal for indicating that the tire pressure sensor is located at the first angle position or the second sensing signal for indicating that the tire pressure sensor is located at the second angle position;

and recording the first sensing signal, the second sensing signal and the tire pressure sensor identification code in an associated manner.

3. The tire pressure sensor front and rear wheel position identification method according to claim 1, wherein the recording of the first number of times the first sensing signal and the second number of times the second sensing signal are acquired and the corresponding tire pressure sensor identification code includes:

judging whether the number of the obtained tire pressure sensor identification codes is larger than the number of wheels;

when the number of the acquired tire pressure sensor identification codes is larger than the number of wheels, respectively calculating the first times of the first sensing signals and the second times of the second sensing signals corresponding to the acquired tire pressure sensor identification codes and the total times of the first sensing signals and the second sensing signals;

the tire pressure sensor identification code with the maximum total number of wheels and the corresponding first number and second number are reserved.

4. The tire pressure sensor front and rear wheel position identifying method according to claim 3, wherein the retaining the tire pressure sensor identification code, which is the same as the number of wheels, the total number of times being the maximum and the corresponding first and second numbers of times includes:

judging whether the total times corresponding to the tire pressure sensor identification codes are greater than preset times or not;

and when the total times corresponding to the tire pressure sensor identification codes are greater than the preset times, keeping the tire pressure sensor identification codes with the maximum total times and the corresponding first times and second times, wherein the tire pressure sensor identification codes are the same as the number of wheels.

5. The method for identifying the front and rear wheel positions of the tire pressure sensor according to claim 1, wherein the step of determining the front and rear wheel positions of the tire pressure sensor corresponding to the identification code according to the first number of times of the first sensing signal, the second number of times of the second sensing signal and the corresponding tire pressure sensor identification code comprises the steps of:

judging whether the difference value of a first proportion of the first time number in the total times and a second proportion of the second time number in the total times corresponding to the tire pressure sensor is larger than a first preset value or not;

if the difference value of the first proportion and the second proportion is larger than a first preset value, the tire pressure sensor is located at the rear wheel position; or,

judging whether the difference value of the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is larger than a second preset value or not;

and if the difference value of the second proportion and the first proportion is greater than a second preset value, the tire pressure sensor is positioned at the front wheel position.

6. The tire pressure sensor front and rear wheel position identifying method according to claim 5,

a first distance between the sensing signal receiving device and the front wheels of the vehicle is smaller than a second distance between the sensing signal receiving device and the rear wheels of the vehicle;

before the determining whether a difference between a first proportion of the first number of times in the total number and a second proportion of the second number of times in the total number, which corresponds to the tire pressure sensor, is greater than a first preset value, the method further includes:

dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times;

judging whether the difference value of the sum of the first times corresponding to the identification codes in the first identification code group and the sum of the first times corresponding to the identification codes in the second identification code group is larger than a third preset value;

if the difference value is larger than a third preset value, the step of judging whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times, which correspond to the tire pressure sensor, is larger than a first preset value is carried out; or,

and if the difference value between the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is larger than a second preset value, the method further comprises the following steps:

and if the difference value is larger than a third preset value, the step of judging whether the difference value of the second ratio of the second times in the total times corresponding to the tire pressure sensor and the first ratio of the first times in the total times is larger than a second preset value or not is carried out.

7. The tire pressure sensor front and rear wheel position identifying method according to claim 6, wherein a first distance of the sensing signal receiving device from the front wheel of the vehicle is smaller than a second distance from the rear wheel;

before the dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first number of times, further comprising:

dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times;

judging whether the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value;

and if the difference value is larger than a fourth preset value, dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first times.

8. The tire pressure sensor front and rear wheel position identifying method according to claim 5,

the first distance between the sensing signal receiving device and the front wheels of the vehicle is greater than the second distance between the sensing signal receiving device and the rear wheels of the vehicle;

if the difference value is larger than a fourth preset value, judging whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times corresponding to the tire pressure sensor is larger than a first preset value or not;

or,

before the determining whether a difference between a second proportion of the second times in the total times and a first proportion of the first times in the total times, which correspond to the tire pressure sensor, is greater than a second preset value, the method further includes:

and if the difference value is larger than a fourth preset value, judging whether the difference value of the second proportion of the second times in the total times corresponding to the tire pressure sensor and the first proportion of the first times in the total times is larger than a second preset value or not.

9. The tire pressure sensor front and rear wheel position identifying method according to claim 8, wherein a first distance of the sensing signal receiving device from the front wheel of the vehicle is greater than a second distance from the rear wheel;

before the dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times, the method further includes:

and if the difference value is larger than a third preset value, dividing the corresponding tire pressure sensor identification code into a third identification code group and a fourth identification code group according to the second times.

10. A tire pressure sensor front and rear wheel position recognition device, comprising:

the tire pressure sensor identification module is used for acquiring a first sensing signal for representing that a tire pressure sensor is located at a first angle position, a second sensing signal for representing that the tire pressure sensor is located at a second angle position and a corresponding tire pressure sensor identification code;

the recording module is used for recording the first times of the acquired first sensing signals, the second times of the acquired second sensing signals and the corresponding tire pressure sensor identification codes;

and the processing module is used for determining the positions of the front wheel and the rear wheel of the tire pressure sensor corresponding to the identification code according to the first times of the first sensing signal, the second times of the second sensing signal and the corresponding tire pressure sensor identification code.

11. The tire pressure sensor front and rear wheel position identifying device according to claim 10, wherein the obtaining module includes:

the acquisition submodule is used for acquiring a sensing signal and a tire pressure sensor identification code sent by a tire pressure sensor;

the first judgment submodule is used for judging whether the sensing signal contains first angle position information or second angle position information;

the first confirming sub-module is used for taking the sensing signal containing the first angle position information or the second angle position information as the first sensing signal for indicating that the tire pressure sensor is positioned at the first angle position or the second sensing signal for indicating that the tire pressure sensor is positioned at the second angle position when the sensing signal contains the first angle position information or the second angle position information;

and the association recording submodule is used for associating and recording the first sensing signal, the second sensing signal and the tire pressure sensor identification code.

12. The tire pressure sensor front and rear wheel position identifying device according to claim 10, wherein the recording module includes:

the second judgment submodule is used for judging whether the number of the acquired tire pressure sensor identification codes is larger than the number of wheels;

the calculation submodule is used for respectively calculating the first times of the first sensing signals and the second times of the second sensing signals corresponding to the obtained tire pressure sensor identification codes and the total times of the first sensing signals and the second sensing signals when the number of the obtained tire pressure sensor identification codes is larger than the number of wheels;

and the reserving submodule is used for reserving the tire pressure sensor identification code with the maximum total times and the corresponding first times and second times, wherein the number of the tire pressure sensor identification codes is the same as that of the wheels.

13. The tire pressure sensor front and rear wheel position identifying device according to claim 12, wherein the retention sub-module includes:

the judging unit is used for judging whether the total times corresponding to the tire pressure sensor identification codes are larger than preset times or not;

and the reserving unit is used for reserving the tire pressure sensor identification code with the maximum total times and the corresponding first times and second times which are the same as the number of wheels when the total times corresponding to the tire pressure sensor identification code is greater than the preset times.

14. The tire pressure sensor front and rear wheel position identifying device according to claim 10, wherein the processing module includes:

the third judgment submodule is used for judging whether the difference value of the first proportion of the first time number in the total times and the second proportion of the second time number in the total times, which correspond to the tire pressure sensor, is greater than a first preset value;

the second confirming submodule is used for determining that the tire pressure sensor is at the rear wheel position if the difference value of the first proportion and the second proportion is larger than a first preset value; or,

the processing module comprises:

a fourth judgment sub-module: the tire pressure sensor is used for judging whether the difference value of the second proportion of the second times in the total times and the first proportion of the first times in the total times, which correspond to the tire pressure sensor, is greater than a second preset value;

a third confirmation submodule: and the tire pressure sensor is arranged at the front wheel position if the difference value of the second proportion and the first proportion is larger than a second preset value.

15. The tire pressure sensor front and rear wheel position identifying device according to claim 14, wherein a first distance of the sensing signal receiving device from the front wheel of the vehicle is smaller than a second distance from the rear wheel; the processing module further comprises:

a first grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times;

a fifth judgment sub-module: the device is used for judging whether the difference value of the sum of the first times corresponding to the identification codes in the first identification code group and the sum of the first times corresponding to the identification codes in the second identification code group is larger than a third preset value or not;

a first entry submodule: if the difference value is larger than a third preset value, the step of judging whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times, which correspond to the tire pressure sensor, is larger than a first preset value is carried out; or,

the processing module comprises:

the second grouping module is used for dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times;

a sixth judgment sub-module: the device is used for judging whether the difference value of the sum of the first times corresponding to the identification codes in the first identification code group and the sum of the first times corresponding to the identification codes in the second identification code group is larger than a third preset value or not;

a second entering submodule: and if the difference value is larger than a third preset value, the step of judging whether the difference value between the second proportion of the second times in the total times and the first proportion of the first times in the total times, which corresponds to the tire pressure sensor, is larger than a second preset value is carried out.

16. The tire pressure sensor front and rear wheel position identifying device according to claim 15, wherein a first distance of the sensing signal receiving device from the front wheel of the vehicle is smaller than a second distance from the rear wheel; the processing module further comprises:

a third grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times;

a seventh judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value;

a third import submodule: and if the difference value is greater than a fourth preset value, the step of dividing the corresponding tire pressure sensor identification code into a first identification code group and a second identification code group according to the first times is carried out.

17. The tire pressure sensor front and rear wheel position identifying device according to claim 14, wherein a first distance of the sensing signal receiving device from the front wheel of the vehicle is greater than a second distance from the rear wheel; the processing module further comprises:

a fourth grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times;

an eighth judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value;

a fourth entering submodule: the tire pressure sensor is used for judging whether the difference value of a first proportion of the first times in the total times and a second proportion of the second times in the total times corresponding to the tire pressure sensor is larger than a first preset value or not if the difference value is larger than a fourth preset value; or,

the processor further comprises:

a fifth grouping submodule: dividing the corresponding tire pressure sensor identification codes into a third identification code group and a fourth identification code group according to the second times;

a ninth judgment sub-module: the difference value of the sum of the second times corresponding to the identification codes in the third identification code group and the sum of the second times corresponding to the identification codes in the fourth identification code group is larger than a fourth preset value;

a fifth entering submodule: and if the difference value is larger than a fourth preset value, the step of judging whether the difference value between the second proportion of the second times in the total times and the first proportion of the first times in the total times, which corresponds to the tire pressure sensor, is larger than a second preset value is carried out.

18. The tire pressure sensor front and rear wheel position identifying device according to claim 17, wherein a first distance of the sensing signal receiving device from the front wheel of the vehicle is greater than a second distance from the rear wheel; the processing module further comprises:

a sixth grouping submodule: the tire pressure sensor identification codes are used for dividing the corresponding tire pressure sensor identification codes into a first identification code group and a second identification code group according to the first times;

a tenth judging submodule, configured to judge whether a difference between a sum of first times corresponding to each of the identifiers in the first identifier group and a sum of first times corresponding to each of the identifiers in the second identifier group is greater than a third preset value;

a sixth entering submodule: and if the difference value is larger than a third preset value, the step of dividing the corresponding tire pressure sensor identification code into a third identification code group and a fourth identification code group according to the second times is carried out.

19. A tire pressure sensor front and rear wheel position recognition system, comprising:

the tire pressure sensor is used for acquiring and transmitting a first sensing signal containing first angle position information and a second sensing signal containing second angle position information;

the sensing signal receiving device is placed between a front wheel and a rear wheel of the automobile and used for receiving signals sent by the tire pressure sensor;

a processor connected to the sensing signal receiving device for performing the front and rear wheel position identification method of the tire pressure sensor according to any one of claims 1 to 9.

20. The tire pressure sensor front and rear wheel position identification system according to claim 19,

the tire pressure sensor sequentially collects and sends the first sensing signal and the second sensing signal at intervals.