CN104149559A - Tire pressure monitoring system based tire replacement distinguishing and information distribution method and device - Google Patents
Tire pressure monitoring system based tire replacement distinguishing and information distribution method and device Download PDFInfo
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- CN104149559A CN104149559A CN201410350274.3A CN201410350274A CN104149559A CN 104149559 A CN104149559 A CN 104149559A CN 201410350274 A CN201410350274 A CN 201410350274A CN 104149559 A CN104149559 A CN 104149559A
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Abstract
The invention provides a tire pressure monitoring system based tire replacement distinguishing and information distribution method and device. The method comprises the following steps: measuring tire information; processing the tire information, and then organizing radio frequency message data signals; transmitting the radio frequency message data signals; receiving the radio frequency message data signals; acquiring power information of the radio frequency message data signals in the synchronous head receiving process of the radio frequency message data signals, thereby obtaining the power information of each tire at present and storing the power information into power signal storage arrays set corresponding to tires; and comparing current power information with power information stored previously so as to distinguish whether tires at the same side are replaced, exchanging the information corresponding to the replaced tires by the set exchange data arrays if the tires at the same side are replaced, and storing exchanged tire information after the exchanging is finished. According to the invention, if the replacement of the front and rear tires at the same side are distinguished, tire positions and information of tire transmitters are matched adaptively, so that tire pressure information is monitored accurately.
Description
Technical field
The present invention relates to tire pressure monitoring technical field, relate in particular to a kind of tire based on tire pressure monitoring system and exchange differentiation and information configuring methods and device.
Background technology
In Vehicle Driving Cycle process, the degree of wear of front and back tire is different.In order to extend the service life of tire, after Vehicle Driving Cycle a period of time, front and back tire need be exchanged.So, also there is variation in the position of tire pressure transmitter thereupon, and this just need to be configured the tire pressure of tire pressure receptor again.
Current tire is exchanged the scheme of differentiating with information configuration to be had:
The first scheme: in the situation of receptor band read-out and button, artificially carry out button operation according to displaying contents and enter respective interface, the information that directly exchanges the corresponding tire of storing in receptor complete the configuration after tire is exchanged;
First scheme: utilize the tire after first external device upgrades position to carry out the collection of corresponding information, then external device writes new tire information in receptor by wired or wireless mode again, completes the configuration after tire is exchanged.
The defect of above-mentioned two kinds of prior art schemes is:
The first scheme cannot complete in the situation that there is no read-out and button.
First scheme need to just can complete by external device, rises because the increase of external device can cause cost of development, does not reach the degree of wildcard, therefore can not carry out at any time.
Summary of the invention
The invention provides a kind of tire based on tire pressure monitoring system and exchange differentiation and information configuring methods and device, solve after differentiating and exchanging to homonymy front and back tire the technical matters adaptively tire location and tire transmitter information being matched in the process of moving.
For achieving the above object, the technical solution used in the present invention is:
One aspect of the present invention provides a kind of tire based on tire pressure monitoring system to exchange differentiation and information configuring methods, comprising:
S1. measure tire information;
S2. after processing tire information, radio frequency message data signal is assembled;
S3. send radio frequency message data signal;
Also comprise:
R1. received RF message data signal;
R2. in the synchronous head receiving course of radio frequency message data signal, the power information of radio frequency message data signal is gathered, obtain the power information of current each tire and deposited in the power signal storage array of corresponding tire setting;
R3. current power information and the power information of last time preserving are compared, whether exchange to judge homonymy tire, if exchange, the exchange array of information exchange corresponding to exchange tire being crossed to setting exchanges, and has exchanged the tire information after rear preservation exchange.
Further, step R2 comprises:
Radio frequency message data signal is carried out to detection processing;
Detection radio frequency message data after treatment signal is amplified;
Radio frequency message data signal after amplifying is carried out to A/D sampling to collect power signal.
Further, in step R2, the position of collection point and quantity depend on level width and the quantity of synchronous head, and sampling frequency is determined by actual transmitting-receiving situation and the sampling point quantity of radiofrequency signal.
Again further, in step R2, the power information of the multiple collection points to a frame radio frequency message data is averaged and is obtained the power information of this frame radio frequency message data, then gathers the power information of multiframe radio frequency message data, averages and obtains current power information.
Further, in step R3, if the absolute value of the difference power relatively drawing exceedes the threshold value of setting, and the absolute value that meets the difference power of another tire of homonymy has also exceeded difference power polarity contrary two conditions of setting tire before and after threshold value and homonymy, judge that homonymy tire exchanges.
The present invention provides a kind of tire based on tire pressure monitoring system to exchange differentiation and information configuration device on the other hand, tire pressure monitoring system comprises tire pressure transmitter and tire pressure receptor, is provided with measurement module, data processing module, radio frequency message sending module in tire pressure transmitter;
Measurement module, for measuring tire information;
Data processing module, for the treatment of after tire information, radio frequency message data signal being assembled;
Radio frequency message sending module, for sending radio frequency message data signal;
In tire pressure receptor, be provided with radio frequency message receiving chip, radiofrequency signal receiver module, radio-frequency signal processing module, communication module;
Radio frequency message receiving chip, for received RF message data signal;
Radiofrequency signal receiver module, for the power information of radio frequency message data signal being gathered at the synchronous head receiving course of radio frequency message data signal, obtain the power information of current each tire and deposited in the power signal storage array of corresponding tire setting;
Radio-frequency signal processing module, for current power information and the power information of last time preserving are compared, whether exchange to judge homonymy tire, if exchange, the exchange array of information exchange corresponding to exchange tire being crossed to setting exchanges, and has exchanged the tire information after rear preservation exchange;
Communication module, shows for tire information after treatment radio-frequency signal processing module is sent to the read out instrument setting.
Further, radiofrequency signal receiver module comprises for radio frequency message data signal being carried out to the detecting circuit of detection processing, for discharge circuit that detection radio frequency message data after treatment signal is amplified, for the radio frequency message data signal after amplifying being sampled to collect the A/D sample circuit of power signal.
Further, in radiofrequency signal receiver module, the position of collection point and quantity depend on level width and the quantity of synchronous head, and sampling frequency is determined by actual transmitting-receiving situation and the sampling point quantity of radiofrequency signal.
Again further, in radiofrequency signal receiver module, the power information of the multiple collection points to a frame radio frequency message data is averaged and is obtained the power information of this frame radio frequency message data, then gathers the power information of multiframe radio frequency message data, averages and obtains current power information.
Further, in radio-frequency signal processing module, if the absolute value of the difference power relatively drawing exceedes the threshold value of setting, and the absolute value that meets the difference power of another tire of homonymy has also exceeded difference power polarity contrary two conditions of setting tire before and after threshold value and homonymy, judge that homonymy tire exchanges.
The present invention, after differentiating and exchanging to homonymy front and back tire, matches tire location and tire transmitter information adaptively in the process of moving, realizes the accurate monitoring of tire pressure in not by external device or manually-operated situation.
Brief description of the drawings
Fig. 1 is that the tire based on tire pressure monitoring system of the present invention is exchanged the schematic flow sheet of differentiating with information configuring methods;
Fig. 2 is that the tire based on tire pressure monitoring system of the present invention is exchanged the structural representation of differentiating with information configuration device.
Detailed description of the invention
Specifically illustrate embodiments of the present invention below in conjunction with accompanying drawing, accompanying drawing is only for reference and use is described, does not form the restriction to scope of patent protection of the present invention.
embodiment:
As shown in Figure 1, the present embodiment provides a kind of tire based on tire pressure monitoring system to exchange differentiation and information configuring methods on the one hand, comprising:
S1. measure tire information;
S2. after processing tire information, radio frequency message data signal is assembled;
S3. send radio frequency message data signal;
Also comprise:
R1. received RF message data signal;
R2. in the synchronous head receiving course of radio frequency message data signal, the power information of radio frequency message data signal is gathered, obtain the power information of current each tire and deposited in the power signal storage array of corresponding tire setting;
R3. current power information and the power information of last time preserving are compared, whether exchange to judge homonymy tire, if exchange, the exchange array of information exchange corresponding to exchange tire being crossed to setting exchanges, and has exchanged the tire information after rear preservation exchange.
In the present embodiment, the tire information of exchange comprises: tire ID, configuration information (thresholding, unit etc.), current tire pressure/temperature information, alarm condition etc.
In the present embodiment, step R2 comprises:
Radio frequency message data signal is carried out to detection processing;
Detection radio frequency message data after treatment signal is amplified;
Radio frequency message data signal after amplifying is carried out to A/D sampling to collect power signal.
In the present embodiment, in step R2, the position of collection point and quantity depend on level width and the quantity of synchronous head, and sampling frequency is determined by actual transmitting-receiving situation and the sampling point quantity of radiofrequency signal.The power information of the multiple collection points to a frame radio frequency message data is averaged and is obtained the power information of this frame radio frequency message data, then gathers the power information of multiframe radio frequency message data, averages and obtains current power information.
In the present embodiment, in step R3, if the absolute value of the difference power relatively drawing exceedes the threshold value of setting, and the absolute value that meets the difference power of another tire of homonymy has also exceeded difference power polarity contrary two conditions of setting tire before and after threshold value and homonymy, judge that homonymy tire exchanges.
In the present embodiment, fixing in the position of tire pressure receptor, the power information transmitting that receives the projector of front and back wheel is different.Receives by the receive mode of setting the power information transmitting, and after filtering and last time power compared, and if the difference power relatively drawing exceedes the threshold value of setting, judged that tire exchanges, thereby corresponding tire information is exchanged; Judge that the power variation threshold value whether tire is exchanged is under normal operation, to record then statistics to draw.
As shown in Figure 2, the embodiment of the present invention provides a kind of tire based on tire pressure monitoring system to exchange differentiation and information configuration device on the other hand, tire pressure monitoring system comprises tire pressure transmitter and tire pressure receptor, is provided with measurement module, data processing module, radio frequency message sending module in tire pressure transmitter;
Measurement module, for measuring tire information;
Data processing module, for the treatment of after tire information, radio frequency message data signal being assembled;
Radio frequency message sending module, for sending radio frequency message data signal;
In tire pressure receptor, be provided with radio frequency message receiving chip, radiofrequency signal receiver module, radio-frequency signal processing module, communication module;
Radio frequency message receiving chip, for received RF message data signal;
Radiofrequency signal receiver module, for the power information of radio frequency message data signal being gathered at the synchronous head receiving course of radio frequency message data signal, obtain the power information of current each tire and deposited in the power signal storage array of corresponding tire setting;
Radio-frequency signal processing module, for current power information and the power information of last time preserving are compared, whether exchange to judge homonymy tire, if exchange, the exchange array of information exchange corresponding to exchange tire being crossed to setting exchanges, and has exchanged the tire information after rear preservation exchange;
Communication module, shows for tire information after treatment radio-frequency signal processing module is sent to the read out instrument setting.
In the present embodiment, the tire information of exchange comprises: tire ID, configuration information (thresholding, unit etc.), current tire pressure/temperature information, alarm condition etc.
In the present embodiment, radiofrequency signal receiver module comprises for radio frequency message data signal being carried out to the detecting circuit of detection processing, for discharge circuit that detection radio frequency message data after treatment signal is amplified, for the radio frequency message data signal after amplifying being sampled to collect the A/D sample circuit of power signal.
The A/D power signal obtaining of sampling is voltage signal, and the relation of the power signal of the voltage signal obtaining and projector transmitting is as follows:
Vsample＝f1(Vpeak)+Vshift；
Wherein: Vsample and Vpeak are linear functions, Vsample represents the magnitude of voltage that sampling obtains, Vpeak represents detection processing previous peaks voltage, and Vshift represents the voltage deviation that receptor amplifier chip causes, and then this side-play amount compensates by test determination in software algorithm;
Ppeak＝f2(Vpeak)；
Wherein: Ppeak and Vpeak are quadratic relations, Ppeak represents the power of the front radio frequency message signals of detection, and unit is W, and Vpeak represents detection processing previous peaks voltage.
In the present embodiment, in radiofrequency signal receiver module, the position of collection point and quantity depend on level width and the quantity of synchronous head, and sampling frequency is determined by actual transmitting-receiving situation and the sampling point quantity of radiofrequency signal.The power information of the multiple collection points to a frame radio frequency message data is averaged and is obtained the power information of this frame radio frequency message data, then gathers the power information of multiframe radio frequency message data, averages and obtains current power information.
Radiofrequency signal synchronous head level receives and adopts the mode of waiting for level conversion to carry out timing, and the collection of power signal is to carry out in the process receiving at radio frequency message synchronous head level, therefore collection point is selected in each synchronous head and waits for that the position of level conversion carries out, the sampled power of collection is deposited in the array setting in advance, in the complete reception of radio frequency message and after by verification, enter rf data processing module;
In rf data processing module, by mating of the ID of the ID of the radiofrequency signal receiving and storage, if the match is successful, the power signal (magnitude of voltage) of storage is averaged to filtering processing, then processing costs is deposited in power signal (magnitude of voltage) the storage array of corresponding tire setting in advance of ID coupling;
Repeat above-mentioned two steps, each tire obtains several groups of magnitudes of voltage, then draws the power signal (magnitude of voltage) of current each tire by being averaged.
In the present embodiment, in radio-frequency signal processing module, if the absolute value of the difference power relatively drawing exceedes the threshold value of setting, and the absolute value that meets the difference power of another tire of homonymy has also exceeded difference power polarity contrary two conditions of setting tire before and after threshold value and homonymy, judge that homonymy tire exchanges.
In the present embodiment, the setting of thresholding size is that the magnitude of voltage Vsample that obtains by signal generator analog input power signal PdBm and actual samples draws after by curve.
Wherein: PdBm=f3 (Ppeak); PdBm and Ppeak are logarithmic relationships, therefore can obtain the matched curve of the magnitude of voltage Vsample that Ppeak and actual samples obtain.
Concrete steps:
By signal generator input power signal PdBm;
Gather magnitude of voltage Vsample by A/D sample circuit;
Regulate input power signal to obtain different magnitudes of voltage;
Obtain, after one group of data, drawing the scatter diagram of power signal and magnitude of voltage relation;
Select line style to carry out Drawing of Curve, every kind of line style draws square R of a coefficient of correlation
2value, R
2value more approaches 1 illustrative graph and more approaches truth, selects R
2approach 1 curve as last curve;
Draw thresholding size according to real work power range and matched curve.
Above disclosed is only preferred embodiment of the present invention, can not limit the scope of the present invention with this, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (10)
1. the tire based on tire pressure monitoring system is exchanged and is differentiated and an information configuring methods, comprising:
S1. measure tire information;
S2. after processing tire information, radio frequency message data signal is assembled;
S3. send radio frequency message data signal;
It is characterized in that, also comprise:
R1. received RF message data signal;
R2. in the synchronous head receiving course of radio frequency message data signal, the power information of radio frequency message data signal is gathered, obtain the power information of current each tire and deposited in the power signal storage array of corresponding tire setting;
R3. current power information and the power information of last time preserving are compared, whether exchange to judge homonymy tire, if exchange, the exchange array of information exchange corresponding to exchange tire being crossed to setting exchanges, and has exchanged the tire information after rear preservation exchange.
2. exchange and differentiate and information configuring methods according to the tire based on tire pressure monitoring system of claim 1, it is characterized in that: step R2 comprises:
Radio frequency message data signal is carried out to detection processing;
Detection radio frequency message data after treatment signal is amplified;
Radio frequency message data signal after amplifying is carried out to A/D sampling to collect power signal.
3. exchange and differentiate and information configuring methods according to the tire based on tire pressure monitoring system of claim 2, it is characterized in that:
In step R2, the position of collection point and quantity depend on level width and the quantity of synchronous head, and sampling frequency is determined by actual transmitting-receiving situation and the sampling point quantity of radiofrequency signal.
4. exchange and differentiate and information configuring methods according to the tire based on tire pressure monitoring system of claim 3, it is characterized in that:
In step R2, the power information of the multiple collection points to a frame radio frequency message data is averaged and is obtained the power information of this frame radio frequency message data, then gathers the power information of multiframe radio frequency message data, averages and obtains current power information.
5. exchange and differentiate and information configuring methods according to the tire based on tire pressure monitoring system of claim 1, it is characterized in that:
In step R3, if the absolute value of the difference power relatively drawing exceedes the threshold value of setting, and the absolute value that meets the difference power of another tire of homonymy has also exceeded difference power polarity contrary two conditions of setting tire before and after threshold value and homonymy, judge that homonymy tire exchanges.
6. the tire based on tire pressure monitoring system is exchanged and is differentiated and an information configuration device, and tire pressure monitoring system comprises tire pressure transmitter and tire pressure receptor, is provided with measurement module, data processing module, radio frequency message sending module in tire pressure transmitter;
Measurement module, for measuring tire information;
Data processing module, for the treatment of after tire information, radio frequency message data signal being assembled;
Radio frequency message sending module, for sending radio frequency message data signal;
It is characterized in that: in tire pressure receptor, be provided with radio frequency message receiving chip, radiofrequency signal receiver module, radio-frequency signal processing module, communication module;
Radio frequency message receiving chip, for received RF message data signal;
Radiofrequency signal receiver module, for the power information of radio frequency message data signal being gathered at the synchronous head receiving course of radio frequency message data signal, obtain the power information of current each tire and deposited in the power signal storage array of corresponding tire setting;
Radio-frequency signal processing module, for current power information and the power information of last time preserving are compared, whether exchange to judge homonymy tire, if exchange, the exchange array of information exchange corresponding to exchange tire being crossed to setting exchanges, and has exchanged the tire information after rear preservation exchange;
Communication module, shows for tire information after treatment radio-frequency signal processing module is sent to the read out instrument setting.
7. exchange and differentiate and information configuration device according to the tire based on tire pressure monitoring system of claim 6, it is characterized in that:
Radiofrequency signal receiver module comprises for radio frequency message data signal being carried out to the detecting circuit of detection processing, for discharge circuit that detection radio frequency message data after treatment signal is amplified, for the radio frequency message data signal after amplifying being sampled to collect the A/D sample circuit of power signal.
8. exchange and differentiate and information configuration device according to the tire based on tire pressure monitoring system of claim 7, it is characterized in that:
In radiofrequency signal receiver module, the position of collection point and quantity depend on level width and the quantity of synchronous head, and sampling frequency is determined by actual transmitting-receiving situation and the sampling point quantity of radiofrequency signal.
9. the tire based on tire pressure monitoring system is according to Claim 8 exchanged and is differentiated and information configuration device, it is characterized in that:
In radiofrequency signal receiver module, the power information of the multiple collection points to a frame radio frequency message data is averaged and is obtained the power information of this frame radio frequency message data, then gather the power information of multiframe radio frequency message data, average and obtain current power information.
10. exchange and differentiate and information configuration device according to the tire based on tire pressure monitoring system of claim 6, it is characterized in that:
In radio-frequency signal processing module, if the absolute value of the difference power relatively drawing exceedes the threshold value of setting, and the absolute value that meets the difference power of another tire of homonymy has also exceeded difference power polarity contrary two conditions of setting tire before and after threshold value and homonymy, judge that homonymy tire exchanges.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410350274.3A CN104149559A (en) | 2014-07-22 | 2014-07-22 | Tire pressure monitoring system based tire replacement distinguishing and information distribution method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350274.3A CN104149559A (en) | 2014-07-22 | 2014-07-22 | Tire pressure monitoring system based tire replacement distinguishing and information distribution method and device |
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| CN104149559A true CN104149559A (en) | 2014-11-19 |
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| CN201410350274.3A Pending CN104149559A (en) | 2014-07-22 | 2014-07-22 | Tire pressure monitoring system based tire replacement distinguishing and information distribution method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110383306A (en) * | 2017-03-07 | 2019-10-25 | 株式会社普利司通 | Tire location exchanges proposing apparatus and tire location exchanges suggesting method |
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| CN103754073A (en) * | 2014-01-06 | 2014-04-30 | 惠州华阳通用电子有限公司 | Method and device for testing communication reliability of tire pressure monitoring system |
| CN103826879A (en) * | 2011-08-09 | 2014-05-28 | 大陆汽车系统公司 | Protocol arrangement in a tire pressure monitoring system |
| JP2014108718A (en) * | 2012-12-03 | 2014-06-12 | Aisin Engineering Co Ltd | Tire position discrimination system |
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| US20120176233A1 (en) * | 2007-10-26 | 2012-07-12 | Measurement Limited | Tire pressure monitoring system using wireless network |
| CN103826879A (en) * | 2011-08-09 | 2014-05-28 | 大陆汽车系统公司 | Protocol arrangement in a tire pressure monitoring system |
| US20140085068A1 (en) * | 2012-09-25 | 2014-03-27 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Tire position determination system |
| JP2014108718A (en) * | 2012-12-03 | 2014-06-12 | Aisin Engineering Co Ltd | Tire position discrimination system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110383306A (en) * | 2017-03-07 | 2019-10-25 | 株式会社普利司通 | Tire location exchanges proposing apparatus and tire location exchanges suggesting method |
| CN110383306B (en) * | 2017-03-07 | 2022-12-02 | 株式会社普利司通 | Tire position exchange advice device and tire position exchange advice method |
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Application publication date: 20141119 |