CN111016550A - Tire pressure data processing method and tire pressure data processing system - Google Patents
Tire pressure data processing method and tire pressure data processing system Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0474—Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
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Abstract
A tire pressure data processing method and a tire pressure data processing system. The invention relates to the field of automobile detection, in particular to a tire pressure data processing method.A receiver receives tire original data of each running tire of a vehicle at a certain acquisition moment, and after the tire pressure and tire temperature data change, the receiver receives tire real-time data of each running tire of the vehicle, if the average value difference between the real-time tire temperature data of any running tire of the vehicle and the real-time tire temperature data of all the remaining running tires of the vehicle does not exceed a preset temperature threshold value, the real-time tire temperature data is effective tire temperature data, the original tire temperature data is replaced, whether the real-time tire pressure data of each running tire of the vehicle is effective tire pressure data is judged, if the real-time tire temperature data is effective tire pressure data, the original tire pressure data is replaced, and the real-time tire pressure data is reported. The technical problem that the actual tire pressure of the current tire cannot be faithfully reflected due to the fact that a small probability is wrong in the existing tire pressure collecting technology is solved.
Description
Technical Field
The invention relates to the field of automobile detection, in particular to a tire pressure data processing method and a tire pressure data processing system.
Background
75% of the flat tires are caused by insufficient tire pressure, and when the tire pressure is insufficient, the side surfaces of the tires are bent due to compression, so that the temperature of the tires is increased to cause flat tires. When the tire pressure is insufficient, the wheel radius decreases, and therefore wheel radius analysis is an important method for monitoring the change in tire pressure. However, the existing wheel radius analysis method does not consider the influence of many special conditions on the radius of the tire, such as the acceleration and turning conditions of the automobile, and the obtained wheel radius value contains much noise. It is desirable to provide a method of wheel radius monitoring tire pressure that filters noise.
At 201910233650.3, Wuhan university discloses a method and a device for determining the tire pressure of an automobile tire, wherein the method comprises the following steps:
1) establishing a wheel radius analysis model to obtain wheel radius estimation value analysis;
2) filtering the wheel radius estimation value analysis result by adopting Kalman filtering to obtain a de-noised wheel radius analysis result;
3) and analyzing the tire pressure according to the stable wheel radius analysis result obtained in the step 2).
The noise of the tire radius analysis is eliminated through Kalman filtering, so that the analysis result is higher in precision than that of the existing method, and the tire pressure monitoring of the air leakage of a plurality of tires can be realized according to the analysis result.
The external tire pressure sensor has an ideal working mode: the method comprises the steps of collecting tire pressure and tire temperature at a fixed frequency, triggering to report tire pressure and tire temperature data at a certain frequency or according to preset conditions (such as detection of change of G-sensors and tire leakage), and displaying corresponding data after a tire pressure receiver receives the data.
In the actual working process, the collected tire pressure is wrong with a small probability (the tire pressure is suddenly too high), and the actual tire pressure of the current tire cannot be faithfully reflected, for example:
1) the sampling process of the tire pressure sensor is disturbed, which causes the tire pressure value to suddenly become high (higher than the normal value by dozens of kpa instantly)
2) When the automobile wheel presses a convex object (such as a relatively sharp stone), the tire is extruded to deform, so that the instantaneous tire pressure is suddenly high, and when the automobile wheel returns to a normal road surface, the tire pressure returns to a normal value.
In the two cases, due to the fact that tire pressure mutation occurs, the sensor reports data to the receiver according to program equipment, and the receiver gives an alarm through sound or light, but the alarm is actually a false alarm and causes trouble to actual use.
Disclosure of Invention
The invention aims to provide a tire pressure data processing method and a tire pressure data processing system, which aim to solve the technical problem that the actual tire pressure of the current tire cannot be faithfully reflected due to the fact that a small probability of errors exists in the existing tire pressure collecting technology.
A tire pressure data processing method, comprising:
the method comprises the steps that a receiver receives tire original data of running tires of a vehicle at a certain collection moment, and stores the tire original data, wherein the tire original data comprise original tire pressure data and original tire temperature data matched with the original tire pressure data;
when the tire pressure and tire temperature data change, a receiver receives tire real-time data of each running tire of the vehicle and records the tire real-time data, wherein the tire real-time data comprises real-time tire pressure data and real-time tire temperature data matched with the real-time tire pressure data;
comparing the real-time tire temperature data of each tire of the vehicle to realize the noise elimination of the tire temperature data;
based on the original tire temperature data and the real-time tire temperature data, the abnormal tire pressure data is eliminated and filtered.
Further, realize that child temperature data removes noise, specifically do: if the average value difference between the real-time tire temperature data of any one running tire of the vehicle and the real-time tire temperature data of all the rest running tires does not exceed a preset temperature threshold value, replacing the original tire temperature data by the real-time tire temperature data, and reporting the real-time tire temperature data; otherwise, the initial tire temperature data is invalid and unchanged; and sequentially finishing the noise removal of the real-time tire temperature data of each tire.
Further, the elimination and the filtration of the abnormal tire pressure data are realized, specifically: if the real-time tire pressure data-the original tire pressure data is less than 0, the real-time tire pressure data is always valid tire pressure data;
if the real-time tire pressure data-the original tire pressure data is greater than 0, when the real-time tire pressure data meets the formula: (the real-time tire pressure data-the original tire pressure data) < (the real-time tire temperature data-the original tire temperature data) × tire pressure increase rate/tire temperature increase rate, the real-time tire pressure data is valid tire pressure data, otherwise the real-time tire pressure data is invalid tire pressure data;
when the real-time tire pressure data is valid tire pressure data, replacing the original tire pressure data and reporting the real-time tire pressure data; when the real-time tire pressure data is invalid tire pressure data, the original tire pressure data is unchanged;
and sequentially eliminating and filtering the real-time tire pressure data of each tire.
The tire pressure data processing method further comprises the following steps:
collecting the tire raw data by using a data collector arranged on each running tire of the vehicle, and receiving the tire raw data by using the receiver;
the method comprises the steps that a data collector arranged on each running tire of the vehicle is used for detecting the change of real-time data of the tire in real time, when the real-time data of the tire changes, the data collector sends new real-time data of the tire, and a receiver receives the real-time data of the tire.
The tire pressure data processing method further comprises the following steps:
the receiver is plugged in the cigarette lighter interface, and when the vehicle is detected to be flamed out or restarted, the receiver starts a tire pressure detection process based on the sampled tire pressure value and the tire temperature value in a triggering mode.
The tire pressure data processing method further comprises the following steps:
storing the tire raw data, in particular storing the tire raw data into a local database;
recording the tire real-time data, specifically, storing the tire real-time data in a data dynamic buffer area.
The tire pressure data processing method further comprises the following steps:
reporting the real-time tire temperature data, specifically reporting the real-time tire temperature data to an upper computer;
reporting the real-time tire pressure data, specifically reporting the real-time tire pressure data to an upper computer;
and analyzing the reported data by using the upper computer, and sending an operation command to perform subsequent processing on the tire pressure problem reflected by the real-time data of the tire.
The preset temperature threshold is 8 degrees.
A tire pressure data processing system comprising: the system comprises at least one vehicle monitoring device for acquiring real-time data of tires, a vehicle end data processing module and a control module;
the vehicle monitoring equipment comprises at least one tire real-time data collector and at least one receiver which are arranged on each tire of a vehicle, wherein the receiver corresponds to the vehicle and is used for receiving tire data collected by each tire real-time data collector in the running process of the vehicle in a Radio Frequency (RF) short-distance radio frequency communication mode;
the vehicle end data processing module: storing the tire original data of each running tire received by the receiver at a certain collection moment; when the tire pressure and tire temperature data change, recording the tire real-time data of each running tire of the vehicle received by the receiver; comparing the average value difference of the real-time tire temperature data of any one running tire of the vehicle with the real-time tire temperature data of all the rest running tires of the vehicle, if the average value difference does not exceed a preset temperature threshold value, the real-time tire temperature data is effective tire temperature data, replacing the original tire temperature data, and reporting the real-time tire temperature data; otherwise, the initial tire temperature data is invalid and unchanged; judging whether the real-time tire pressure data of each running tire of the vehicle is effective tire pressure data according to a formula, if so, replacing the original tire pressure data, and reporting the real-time tire pressure data;
the control module is used for: and reporting the real-time tire temperature data and the real-time tire pressure data to an upper computer, analyzing the reported data by using the upper computer, and sending an operation command to perform subsequent processing on the tire pressure problem reflected by the real-time tire data.
The vehicle-end data processing module further comprises:
the storage unit further comprises a local database and a data dynamic buffer area, wherein the local database stores the original data of the tire, and the data dynamic buffer area records the real-time data of the tire;
a storage processing unit: the tire raw data of each running tire received by the receiver at a certain collection moment are stored in the local database;
a cache processing unit: the data dynamic buffer area is used for recording the real-time tire data of each running tire of the vehicle received by the receiver to the data dynamic buffer area after the tire pressure and tire temperature data change;
the first calculation unit: the real-time tire temperature data acquisition module is used for comparing the average value difference of the real-time tire temperature data of any one running tire of the vehicle with the real-time tire temperature data of all the rest running tires of the vehicle, and if the average value difference does not exceed a preset temperature threshold value, the real-time tire temperature data is effective tire temperature data and replaces the original tire temperature data;
a second calculation unit: the real-time tire pressure data processing unit is used for judging whether the real-time tire pressure data of each running tire of the vehicle is effective tire pressure data or not according to a formula, and replacing the original tire pressure data if the real-time tire pressure data is the effective tire pressure data.
The specific judgment process of whether the real-time tire pressure data is effective tire pressure data is as follows:
if the real-time tire pressure data-the original tire pressure data is less than 0, the real-time tire pressure data is always valid tire pressure data;
if the real-time tire pressure data-the original tire pressure data is greater than 0, when the real-time tire pressure data meets the formula: (the real-time tire pressure data-the original tire pressure data) < (the real-time tire temperature data-the original tire temperature data) × tire pressure increase rate/tire temperature increase rate), the real-time tire pressure data is valid tire pressure data, otherwise the real-time tire pressure data is invalid tire pressure data.
The manipulation module includes:
the database is used for storing the reported real-time tire temperature data and the reported real-time tire pressure data;
and the upper computer is used for analyzing the reported data and sending out an operation command to carry out subsequent processing on the tire pressure problem reflected by the real-time data of the tire.
The vehicle-end data processing module further comprises:
an interaction unit: and the real-time tire temperature data is reported to an upper computer, and the real-time tire pressure data is reported to the upper computer.
Compared with the prior art, the invention has the following advantages:
by providing the tire pressure data processing method and the tire pressure data processing system, noise removal and elimination are carried out on tire temperature and tire pressure abnormal data, so that the technical problem that the actual tire pressure of the current tire cannot be faithfully reflected due to the fact that a small probability is wrong in the existing tire pressure acquisition technology is solved.
Drawings
Fig. 1 is a schematic view of a tire pressure data processing system of the present invention;
fig. 2 is a schematic diagram of a tire pressure data processing method according to the present invention;
fig. 3 is a block diagram of a tire pressure data processing system of the present invention;
Detailed Description
The principles of the present invention are explained in detail below with reference to the accompanying drawings.
Examples
Please refer to fig. 1, which is a schematic diagram of a remote real-time tire pressure monitoring system for a vehicle. The vehicle monitoring system comprises at least one vehicle monitoring device for obtaining real-time data of tires, at least one vehicle terminal processing and displaying module 13 and a cloud monitoring center 14. Wherein:
the vehicle monitoring device may be mounted on a trolley and includes at least one tire real-time data collector 11 and at least one receiver 12 for each tire of the vehicle. The prior vehicle takes four-wheel drive as an example, and generally four tires work during running. Therefore, the number of the tire real-time data collectors 11 may be four, and one tire real-time data collector 11 is provided for each tire. The Tire real-time data collector 11 may use the existing ZUS external stsm (smart Tire Safety monitor). That is, the tire real-time data collector may be a tire pressure sensor, and the tire pressure sensor is installed at a tire valve of a corresponding tire.
The above is only an example, the sensor is one for each wheel, and has two types of external and internal, and the air pressure detection device, the wireless transmission device and the long-life battery unit are generally embedded in the small and compact appearance. The external sensor is arranged on the tire valve, the operation is very simple, and basically, the external sensor can be installed by a user buying the external sensor. The built-in sensor is installed in the tire, the tire needs to be detached, dynamic balance needs to be carried out after the built-in sensor is installed, the process is relatively troublesome, and the built-in sensor is a mature product. The built-in sensor can accurately sense the air pressure and temperature change of the tire basically, and the common error can be controlled to be about 0.1Bar and 2 ℃. The external sensor is communicated with the air pressure and the air temperature inside the tire by virtue of the inflating valve, and is influenced by the external environment, and the precision of the external sensor can generally reach 90% or more of that of the internal sensor. The above tire pressure sensors are merely illustrative.
The remote real-time tire pressure monitoring system applied to the racing car generally arranges the sensor on the external inflating valve to facilitate quick arrangement in the process of racing, considering the particularity of the racing car in the process of replacing the tire. In addition, the speed of the racing car is relatively fast during the running process, so that the temperature of the tyre of the racing car is easy to rise during the running process, and similarly, the sensor and related parts on the inflating valve are generally made of high-temperature resistant materials.
The receiver 12 is independently developed by the company, and is configured to receive raw data transmitted by each tire real-time data collector during the running of the vehicle through an RF short-distance radio frequency communication manner, process the raw data of different tires into current tire data (the current tire data includes and is not limited to tire pressure, tire temperature, air leakage, and battery information) representing the current state of all running tires in units of vehicles, and upload compressed data packets indicating the current tire data of the vehicle in a period of several seconds or several minutes.
The receiver 12 can be made very small, the data transmission mode between the receiver and each sensor can be an RF radio frequency mode, the data transmission can be carried out with an upper computer (such as a vehicle end processing and displaying module 13 or a communication terminal where the vehicle end processing and displaying module is located) by using low-power consumption Bluetooth, the receiver can be designed into the shape of the existing receiver, a cigarette lighting interface arranged in a vehicle, or the receiver can be a receiver or a vehicle intelligent device integrated with the function of the receiver. The receiver can be plugged and arranged on a cigarette lighting interface in the vehicle.
The receiver may include a control chip, an RF short-range radio frequency module, a wireless communication unit, an in-vehicle communication unit including a USB interface, and a storage unit. The wireless communication unit is mainly a bluetooth module which interacts with an upper computer (generally, a terminal where the vehicle-end processing and displaying module 13 is located). The USB interface is used for updating software in the control chip or supplying power to the external charging unit through the USB interface. The terminal where the vehicle-end processing and displaying module 13 is located may include a user terminal, such as a terminal device like a smart phone or a tablet computer. The wireless communication unit may enable connection with the terminal based on a wireless communication technology. For example, the wireless communication unit may be a bluetooth unit, i.e., the wireless communication unit communicates with the terminal based on bluetooth technology; alternatively, the wireless communication unit may be a WiFi unit, that is, the wireless communication unit communicates with the terminal based on WiFi technology; or, the wireless communication unit may be a Zigbee unit, that is, the wireless communication unit implements communication with the terminal based on Zigbee technology; of course, the wireless communication unit may also be a structure supporting other communication technologies or communication protocols, and is not limited herein.
The wireless communication unit may be implemented by an Application-specific integrated circuit (ASIC), a Field-Programmable Gate array (FPGA), or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like, which are not limited herein. The wireless communication unit can also be used for receiving other instructions sent by the terminal, analyzing the instructions according to the communication protocol, and sending the analyzed instructions to the control chip so as to be further processed by the control chip.
For example, the identity information of the tire pressure sensor may include one or more of an identification of the tire pressure sensor, installation location information of the tire pressure sensor, and the like, which is not limited herein. The identifier of the tire pressure sensor may be a unique identifier for characterizing one tire pressure sensor, or a programmable identifier of the tire pressure sensor, which is not limited herein. For example, the installation location information of the tire pressure sensor may be used to characterize that the tire pressure sensor is installed in a front left tire, a front right tire, a rear left tire, a rear right tire, or the like of the vehicle. The updating of the identity information of the tire pressure sensor by the control chip may be updating one or more kinds of information in the identity information, which is not limited herein. In one scenario, if the tire pressure sensor on the vehicle needs to be replaced, the terminal may receive the identity information of the replaced tire pressure sensor, which is input by the user, for example, the identifier of the tire pressure sensor. Specifically, a correspondence table between the identifier of the tire pressure sensor and the installation position information may be pre-established, and the identifier of the tire pressure sensor may be updated according to the correspondence table.
The control chip may be implemented by a processor, a controller, a Central Processing Unit (CPU), an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware, or the like, and is not limited herein.
The control chip pairs the received tire pressure sensor identifications of the tires, for example, the identifications can not only identify whether the tire pressure sensors belong to the tire pressure sensors belonging to the vehicle, but also pair position information of one of the left front tire, the right front tire, the left rear tire and the right rear tire of the vehicle where the tire pressure sensors are installed. In addition, the real-time original data of the tire pressure sensor is analyzed and stored after being processed, the data are processed into compressed data packets according to a preset data format, and the compressed data packets which are uploaded in a second or a plurality of seconds or minutes or a plurality of minutes and indicate the current tire data of the vehicle are uploaded.
Specifically, the storage unit may store the identity information of the tire pressure sensor sent by the control chip, and set a plurality of data tables for the tire pressure sensor as a unit, where each data table stores real-time data of the tire, such as tire pressure, tire temperature, whether air is leaking, and battery information.
In an integrated circuit, a circuit without a physical form and having a storage function is also called a storage unit, such as a RAM (Random Access Memory), a FIF0(First lnput First Output), and the like; in the system, the storage device in physical form is also called a storage unit, such as a memory bank, a memory card, and the like.
The receiver may also include an in-vehicle communication unit. The vehicle-mounted communication unit is realized by a field bus interface, an RS232 interface, a serial interface or the like. Of course, the vehicle-mounted communication unit may also include other implementation manners, for example, the vehicle-mounted communication unit is a wireless interface, and the vehicle-mounted communication unit may implement wired connection or wireless connection with the vehicle-mounted display device, which is not limited herein.
The present invention provides a principle of a tire pressure data processing method, which includes (shown in fig. 2):
s11: the method comprises the steps that a receiver receives tire original data of each running tire of a vehicle at a certain collection moment, and the tire original data are stored, wherein the tire original data comprise original tire pressure data and original tire temperature data matched with the original tire pressure data.
And collecting the tire raw data by using a data collector arranged on each running tire of the vehicle, and receiving the tire raw data by using the receiver.
The receiver is plugged in the cigarette lighter interface, and when the vehicle is detected to be flamed out or restarted, the receiver starts a tire pressure detection process based on the sampled tire pressure value and the tire temperature value in a triggering mode.
Storing the tire raw data is specifically storing the tire raw data in a local database.
S12: when the tire pressure and tire temperature data change, a receiver receives tire real-time data of each running tire of the vehicle and records the tire real-time data, wherein the tire real-time data comprises real-time tire pressure data and real-time tire temperature data matched with the real-time tire pressure data;
the method comprises the steps that a data collector arranged on each running tire of the vehicle is used for detecting the change of real-time data of the tire in real time, when the real-time data of the tire changes, the data collector sends new real-time data of the tire, and a receiver receives the real-time data of the tire.
Recording the tire real-time data, specifically, storing the tire real-time data in a data dynamic buffer area.
S13: if the average value difference between the real-time tire temperature data of any one running tire of the vehicle and the real-time tire temperature data of all the rest running tires does not exceed a preset temperature threshold value, replacing the original tire temperature data by the real-time tire temperature data, and reporting the real-time tire temperature data; otherwise, the initial tire temperature data is not changed.
And reporting the real-time tire temperature data, specifically reporting the real-time tire temperature data to an upper computer.
The preset temperature threshold may be set to 8 degrees.
S14: if the real-time tire pressure data-the original tire pressure data is less than 0, the real-time tire pressure data is always valid tire pressure data;
if the real-time tire pressure data-the original tire pressure data is greater than 0, when the real-time tire pressure data meets the formula: (the real-time tire pressure data-the original tire pressure data) < (the real-time tire temperature data-the original tire temperature data) × tire pressure increase rate/tire temperature increase rate, the real-time tire pressure data is valid tire pressure data, otherwise the real-time tire pressure data is invalid tire pressure data;
when the real-time tire pressure data is valid tire pressure data, replacing the original tire pressure data and reporting the real-time tire pressure data; and when the real-time tire pressure data is invalid tire pressure data, the original tire pressure data is unchanged.
And reporting the real-time tire pressure data, specifically reporting the real-time tire pressure data to an upper computer.
And analyzing the reported data by using the upper computer, and sending an operation command to perform subsequent processing on the tire pressure problem reflected by the real-time data of the tire.
The present invention also provides a tire pressure data processing system, comprising (shown in fig. 3): the system comprises at least one vehicle monitoring device 21 for obtaining real-time data of tires, a vehicle end data processing module 22 and a control module 23;
the vehicle monitoring device 21 comprises at least one tire real-time data collector 211 and at least one receiver 212 which are arranged for each tire of a vehicle, wherein the receiver 212 corresponds to a vehicle and is used for receiving tire data collected by each tire real-time data collector 211 in the running process of the vehicle in an RF short-distance radio frequency communication mode;
the vehicle-end data processing module 22: storing the tire raw data of each running tire received by the receiver 212 at a certain collection time; when the tire pressure and tire temperature data change, recording the tire real-time data of each running tire of the vehicle received by the receiver 212; comparing the average value difference of the real-time tire temperature data of any one running tire of the vehicle with the real-time tire temperature data of all the rest running tires of the vehicle, if the average value difference does not exceed a preset temperature threshold value, the real-time tire temperature data is effective tire temperature data, replacing the original tire temperature data, and reporting the real-time tire temperature data; otherwise, the initial tire temperature data is invalid and unchanged; judging whether the real-time tire pressure data of each running tire of the vehicle is effective tire pressure data according to a formula, if so, replacing the original tire pressure data, and reporting the real-time tire pressure data;
the control module 23: and reporting the real-time tire temperature data and the real-time tire pressure data to an upper computer 232, analyzing the reported data by using the upper computer, and sending an operation command to perform subsequent processing on the tire pressure problem reflected by the real-time tire pressure data.
The vehicle-end data processing module 22 further includes:
the storage unit 221, which further includes a local database and a data dynamic buffer area, wherein the local database stores the tire raw data, and the data dynamic buffer area records the tire real-time data;
the storage processing unit 222: the tire raw data of each running tire received by the receiver at a certain collection moment are stored in the local database;
the cache processing unit 223: the data dynamic buffer area is used for recording the real-time tire data of each running tire of the vehicle received by the receiver to the data dynamic buffer area after the tire pressure and tire temperature data change;
the first calculation unit 224: the real-time tire temperature data acquisition module is used for comparing the average value difference of the real-time tire temperature data of any one running tire of the vehicle with the real-time tire temperature data of all the rest running tires of the vehicle, and if the average value difference does not exceed a preset temperature threshold value, the real-time tire temperature data is effective tire temperature data and replaces the original tire temperature data;
the second calculation unit 225: the real-time tire pressure data processing unit is used for judging whether the real-time tire pressure data of each running tire of the vehicle is effective tire pressure data or not according to a formula, and replacing the original tire pressure data if the real-time tire pressure data is the effective tire pressure data.
The manipulation module 23 includes:
the database 231 is used for storing the reported real-time tire temperature data and the reported real-time tire pressure data;
and the upper computer 232 is used for analyzing the reported data and sending an operation command to perform subsequent processing on the tire pressure problem reflected by the real-time data of the tire. The upper computer can be a cloud monitoring center.
The vehicle-end data processing module 22 further includes:
the interaction unit 226: and the real-time tire temperature data is reported to an upper computer, and the real-time tire pressure data is reported to the upper computer.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in one or more non-volatile computer-readable storage media, and can include the processes of the embodiments of the methods described above when executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
Those skilled in the art will appreciate that the structures associated with the disclosed aspects are merely part of a structure and are not intended to define a device or components for which the disclosed aspects apply, and that a particular device may include more or less components than those shown, or may have some components combined, or may have a different arrangement of components. In one embodiment, the vehicle remote real-time tire pressure monitoring method provided by the application can be implemented in the form of a computer program, and the computer program can be run on upper general-purpose equipment or various intelligent vehicle terminals. The memory of the device may store various program modules constituting the apparatus, and the computer program constituted by the various program modules makes the processor execute the steps of the method for remotely monitoring the tire pressure in real time according to the various embodiments of the present application described in the present specification.
In one embodiment, a vehicle intelligent device is provided, which comprises a memory and a processor, wherein the memory stores a computer program, and the computer program causes the processor to execute the steps of the method for monitoring the tire pressure in real time.
In one embodiment, a computer readable storage medium is provided, in which a computer program is stored, which, when being executed by a processor, causes the processor to carry out the steps of the above-mentioned method for real-time monitoring of tire pressure. The steps of the real-time tire pressure monitoring method herein may be the steps in the real-time tire pressure monitoring methods of the various embodiments described above.
The above disclosure is only for the purpose of describing several embodiments of the present application, but the present application is not limited thereto, and any variations that can be considered by those skilled in the art are intended to fall within the scope of the present application.
Claims (14)
1. A tire pressure data processing method, characterized by comprising:
the method comprises the steps that a receiver receives tire original data of running tires of a vehicle at a certain collection moment, and stores the tire original data, wherein the tire original data comprise original tire pressure data and original tire temperature data matched with the original tire pressure data;
when the tire pressure and tire temperature data change, a receiver receives tire real-time data of each running tire of the vehicle and records the tire real-time data, wherein the tire real-time data comprises real-time tire pressure data and real-time tire temperature data matched with the real-time tire pressure data;
comparing the real-time tire temperature data of each tire of the vehicle, and performing noise removal processing on the tire temperature data;
and based on the original tire temperature data and the real-time tire temperature data, removing and filtering abnormal tire pressure data.
2. The tire pressure data processing method according to claim 1, wherein the tire temperature data denoising further comprises:
if the average value difference between the real-time tire temperature data of any one running tire of the vehicle and the real-time tire temperature data of all the rest running tires does not exceed a preset temperature threshold value, replacing the real-time tire temperature data with the original tire temperature data, and reporting the real-time tire temperature data; otherwise, the initial tire temperature data is invalid and unchanged;
and sequentially finishing the noise removal of the real-time tire temperature data of each tire.
3. The tire pressure data processing method according to claim 1, wherein the implementing the culling and filtering of abnormal tire pressure data further comprises:
if the real-time tire pressure data-the original tire pressure data is less than 0, the real-time tire pressure data is always valid tire pressure data;
if the real-time tire pressure data-the original tire pressure data is greater than 0, when the real-time tire pressure data meets the formula: (the real-time tire pressure data-the original tire pressure data) < (the real-time tire temperature data-the original tire temperature data) × tire pressure increase rate/tire temperature increase rate, the real-time tire pressure data is valid tire pressure data, otherwise the real-time tire pressure data is invalid tire pressure data;
when the real-time tire pressure data is valid tire pressure data, replacing the original tire pressure data and reporting the real-time tire pressure data; when the real-time tire pressure data is invalid tire pressure data, the original tire pressure data is unchanged;
and sequentially eliminating and filtering the real-time tire pressure data of each tire.
4. The tire pressure data processing method according to claim 1, further comprising:
collecting the tire raw data by using a data collector arranged on each running tire of the vehicle, and receiving the tire raw data by using the receiver;
the method comprises the steps that a data collector arranged on each running tire of the vehicle is used for detecting the change of real-time data of the tire in real time, when the real-time data of the tire changes, the data collector sends new real-time data of the tire, and a receiver receives the real-time data of the tire.
5. The tire pressure data processing method according to claim 1, further comprising:
the receiver is plugged in the cigarette lighter interface, and when the vehicle is detected to be flamed out or restarted, the receiver starts a tire pressure detection process based on the sampled tire pressure value and the tire temperature value in a triggering mode.
6. The tire pressure data processing method according to claim 1, further comprising:
storing the tire raw data, in particular storing the tire raw data into a local database;
recording the tire real-time data, specifically, storing the tire real-time data in a data dynamic buffer area.
7. The tire pressure data processing method according to claim 1, further comprising:
reporting the real-time tire temperature data, specifically reporting the real-time tire temperature data to an upper computer;
reporting the real-time tire pressure data, specifically reporting the real-time tire pressure data to the upper computer;
and analyzing the reported data by using the upper computer, and sending an operation command to perform subsequent processing on the tire pressure problem reflected by the real-time data of the tire.
8. The tire pressure data processing method according to claim 1, further comprising:
the preset temperature threshold is 5-12 degrees.
9. A tire pressure data processing system, comprising: the system comprises at least one vehicle monitoring device for acquiring real-time data of tires, a vehicle end data processing module and a control module;
the vehicle monitoring equipment comprises at least one tire real-time data collector and at least one receiver which are arranged on each tire of a vehicle, wherein the receiver corresponds to the vehicle and is used for receiving tire data collected by each tire real-time data collector in the running process of the vehicle in a Radio Frequency (RF) short-distance radio frequency communication mode;
the vehicle end data processing module: storing the tire raw data of each running tire received by the receiver at a certain collection moment; when the tire pressure and tire temperature data change, recording the tire real-time data of each running tire of the vehicle received by the receiver; comparing the average value difference of the real-time tire temperature data of any one running tire of the vehicle with the real-time tire temperature data of all the rest running tires of the vehicle, if the average value difference does not exceed the preset temperature threshold value, the real-time tire temperature data is effective tire temperature data, replacing the original tire temperature data, and reporting the real-time tire temperature data; otherwise, the initial tire temperature data is invalid and unchanged; judging whether the real-time tire pressure data of each running tire of the vehicle is effective tire pressure data according to a formula, if so, replacing the original tire pressure data, and reporting the real-time tire pressure data;
the control module is used for: and reporting the real-time tire temperature data and the real-time tire pressure data to the upper computer, analyzing the reported data by using the upper computer, and sending an operation command to perform subsequent processing on the tire pressure problem reflected by the real-time tire pressure data.
10. The tire pressure data processing system of claim 9, wherein the vehicle-end data processing module further comprises:
the storage unit further comprises a local database and a data dynamic buffer area, wherein the local database stores the original data of the tire, and the data dynamic buffer area records the real-time data of the tire;
a storage processing unit: the tire raw data of each running tire received by the receiver at a certain collection moment are stored in the local database;
a cache processing unit: the data dynamic buffer area is used for recording the real-time tire data of each running tire of the vehicle received by the receiver to the data dynamic buffer area after the tire pressure and tire temperature data change;
the first calculation unit: the real-time tire temperature data acquisition module is used for comparing the average value difference of the real-time tire temperature data of any one running tire of the vehicle with the real-time tire temperature data of all the rest running tires of the vehicle, and if the average value difference does not exceed the preset temperature threshold value, the real-time tire temperature data is effective tire temperature data and replaces the original tire temperature data;
a second calculation unit: the real-time tire pressure data processing unit is used for judging whether the real-time tire pressure data of each running tire of the vehicle is effective tire pressure data or not according to a formula, and replacing the original tire pressure data if the real-time tire pressure data is the effective tire pressure data.
11. The tire pressure data processing system of claim 9, wherein the manipulation module comprises:
the database is used for storing the reported real-time tire temperature data and the reported real-time tire pressure data;
and the upper computer is used for analyzing the reported data and sending out an operation command to carry out subsequent processing on the tire pressure problem reflected by the real-time data of the tire.
12. The tire pressure data processing system of claim 9, wherein the vehicle-end data processing module further comprises:
an interaction unit: and the real-time tire temperature data is reported to the upper computer, and the real-time tire pressure data is reported to the upper computer.
13. A readable storage medium storing a program which, when executed by a processor, causes the steps of the method of any one of claims 1 to 6 to be performed.
14. An intelligent device for a vehicle comprising a memory and a processor, the memory storing a program which, when executed by the processor, causes the processor to perform the steps of the method according to any one of claims 1 to 6.
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