CN102857321B - Packaging processing method of wireless tire pressure sensing system - Google Patents
Packaging processing method of wireless tire pressure sensing system Download PDFInfo
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- CN102857321B CN102857321B CN201110189079.3A CN201110189079A CN102857321B CN 102857321 B CN102857321 B CN 102857321B CN 201110189079 A CN201110189079 A CN 201110189079A CN 102857321 B CN102857321 B CN 102857321B
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Abstract
The invention relates to a packaging processing method of a wireless tire pressure sensing system. The packaging processing method disclosed by the invention comprises the following steps before transmitting of a transmitting terminal: A-1, data and identification code data are merged to form a data string; A-2, cyclic redundancy check is carried out on the data string by utilizing a derivation polynomial to obtain a remainder; and A-3, the data and the remainder are merged to form a packet and then the packet is sent. The packaging processing method also comprises the following steps after receiving of a receiving terminal: B-1, one group of reference data is extracted from a data group set with multiple groups of reference data, and the cyclic redundancy check is carried out on the reference data and the received packet; B-2, whether the remainder obtained in the step B-1 is 0 or not, if the remainder is not 0, the step B-1 is returned, and the cyclic redundancy check is carried out on the other groups of reference data and the received packet; and if the remainder is 0, the data in the packet is captured.
Description
Technical field
The present invention is relevant with radio tire pressure detecting system, in more detail refers to a kind of method for processing packet of radio tire pressure detecting system.
Background technology
Automobile is one of main traffic instrument of modern, and therefore, the outfit of vehicle is except considering practicality now, and the fail safe for vehicle also more and more adds attention.And drive before safety inspection in, general motorist is in the tire pressure often omitting procuratorial work tire, the not only oil consumption when tire pressure is not enough, also can cause driver not easily to manipulate the direct of travel of automobile, and by causing driver, therefore the safety of passenger and walking along the street people easily endangered.
Along with the progress of science and technology, occur for avoiding said circumstances, then dealer is had to research and develop a kind of radio tire pressure detecting system in recent years, set up a tire pressure detector respectively in each tire, in order to detect the tire pressure of each tire and to be given the driving computer of automobile by wireless signal emission, whether the tire pressure detecting each tire for driver is in real time arranged in normal scope.
And be the situation avoiding the wireless signal of wireless tire pressure detection system misinformation to occur or receives by mistake, then research and development have a kind of method for processing packet being applicable to wireless tire pressure detection system, as the People's Republic of China (PRC) discloses " method for processing packet of wireless telecommunications " of No. 101494518A, CN, it sends with the method for the data receiving tire pressure as follows:
The signal processing method of transmitting terminal includes the following step:
A-1. this data and identification code data are merged, after add an end Identification Data in data back-end, formed one first serial data;
A-2. utilize a derivative multinomial (Generation Polynomial) to carry out Cyclical Redundancy Check (Cyclic Redundancy Check, CRC) to this serial data and obtain one first remainder;
A-3., after this data and this end Identification Data being merged, one second serial data is formed in conjunction with this first remainder;
A-4. form a package after this second serial data and this identification code data being carried out exor (XOR) computing to send;
Signal processing method after receiving terminal receives package includes the following step:
B-1. according to the package length of predefined check whether receive the data length of package correct, if length is wrong, represent error of transmission and no longer subsequent treatment;
B-2. have in the data group of many group reference datas from one and take out wherein one group of reference data, and obtain a logical value after this reference data and the package received are carried out exor computing;
B-3. check in this logical value whether there is this end Identification Data, if do not have, return step B-2. to other reference data batch operating test;
B-4. by this reference data with this logical value in conjunction with formation 1 the 3rd serial data, and Cyclical Redundancy Check carried out to the 3rd serial data obtain one second remainder with this derivative multinomial;
B-5. check whether this second remainder is 0; If not 0, then return step B-2. to other reference data batch operating test; If 0, then represent that this reference data conforms to these identification code data, then take out the Data Data in this logical value.
But, though said method can reach the situation avoiding the wireless signal of wireless tire pressure detection system misinformation to occur or receives by mistake, but it is comparatively numerous and diverse because sending with calculation process when receiving, and easily cause the delay of certain hour, and the tire pressure data making wireless tire pressure detection system cannot provide user in real time to detect tire.In addition, said method is comparatively applicable to the interference sources such as network communication and the logical security threat of money is under the higher environment of degree, but because the wireless communication environments of wireless tire pressure detection system is comparatively simple, and make its wireless signal send with during signal operation process when receiving by the step that do not need said method so numerous and diverse and computing.Therefore the method for processing packet of radio tire pressure detecting system is not discriminated perfect yet, and the part that still haves much room for improvement.
Summary of the invention
In view of this, main purpose of the present invention is the method for processing packet providing a kind of radio tire pressure detecting system, can provide preferably arithmetic speed.
Edge, to reach above-mentioned purpose, the invention provides a kind of method for processing packet of radio tire pressure detecting system, and this radio tire pressure detecting system has a transmitting terminal and a receiving terminal; This transmitting terminal is in order to be sent to this receiving terminal by the data of the tire pressure recorded;
The signal processing method of this transmitting terminal includes the following step:
A-1. this data and identification code data are merged formation one serial data;
A-2. utilize a derivative multinomial (Generation Polynomial) to carry out Cyclical Redundancy Check (Cyclic Redundancy Check, CRC) to this serial data and obtain a remainder;
A-3. send after this data and this remainder being merged formation one package;
Signal processing method after this receiving terminal receives package includes the following step:
B-1. have in the data group of many group reference datas from one and take out wherein one group of reference data, and this reference data and the package received are carried out Cyclical Redundancy Check;
B-2. whether the remainder of inspection step B-1. gained is 0;
If not, then return step B-1. and carry out Cyclical Redundancy Check with other group reference data with the package received;
If so, this data in this package is then captured.
Thus, utilize above-mentioned method for processing packet, radio tire pressure detecting system arithmetic speed can be accelerated, and then make this wireless tire pressure detection system reach the object providing user to detect pressure of tire data in real time.
Accompanying drawing explanation
For can the present invention be illustrated more clearly in, below enumerates preferred embodiment and coordinate accompanying drawing to be described in detail as follows, wherein:
Fig. 1 is the configuration schematic diagram of radio tire pressure detecting system of the present invention.
Fig. 2 is the package process chart of transmitting terminal of the present invention.
Fig. 3 is the package process chart of receiving terminal of the present invention.
Embodiment
The present invention, in order to provide a kind of method for processing packet of radio tire pressure detecting system 1, refers to Fig. 1, and radio tire pressure detecting system 1 of the present invention is provided on an automobile 100, only not as limit.This radio tire pressure detecting system 1 has multiple transmitting terminal 10 and being located at each tire respectively and is located at the receiving terminal 20 of driving a vehicle on computer; Respectively this transmitting terminal 10 is in order to be sent to this receiving terminal 20 by the data including the tire pressure recorded, the tire pressure data of each tire of data real-time informing user that can receive according to receiving terminal to make driving computer.
Refer to Fig. 2, the signal processing method respectively before the transmission of this transmitting terminal 10 includes the following step:
A-1. this data and identification code data are merged formation one serial data;
A-2. utilize a derivative multinomial (Generation Polynomial) to carry out Cyclical Redundancy Check (Cyclic Redundancy Check, CRC) to this serial data and obtain a remainder;
A-3. send after this data and this remainder being merged formation one package;
Thus, by utilizing Cyclical Redundancy Check mode to carry out computing, respectively this transmitting terminal 10 can be made these complete identification code data need not to be incorporated in package, and then reach the effect effectively reducing the packet size that respectively this transmitting terminal 10 sends.
In addition, refer to Fig. 3, the signal processing method after this receiving terminal 20 receives package includes the following step:
B-1. have in the data group of many group reference datas from one and take out wherein one group of reference data, and this reference data and the package received are carried out Cyclical Redundancy Check;
B-2. whether the remainder of inspection step B-1. gained is 0;
If not, then return step B-1. and carry out Cyclical Redundancy Check with other group reference data with the package received;
If, then represent that this reference data conforms to the identification code data that wherein this transmitting terminal uses in steps A-1., in other words, the package received is sent by described transmitting terminal one wherein, therefore then this data in predetermined for this package field is captured out.
In addition, for promoting the treatment effeciency of this receiving terminal, before this receiving terminal performs step B-1., first judge whether the length of the package received is default predetermined length; If not, then represent error of transmission, will received package be abandoned, and treat again to receive another package; If so, then down step B-1. is performed.
Moreover, be similarly the treatment effeciency promoting this receiving terminal, in this step B-2., when the remainder of step B-1. gained is not 0, first judge in this data group, whether all reference datas carry out Cyclical Redundancy Check with received package all; If so, then represent error of transmission, will received package be abandoned, treat again to receive another package; If not, then return step B-1. and carry out Cyclical Redundancy Check with other group reference data with the package received.
Again, in order to make computing more simple, we usually can when steps A-2. carries out Cyclical Redundancy Check, use shorter Cyclical Redundancy Check (as CRC-8), now, merge the situation that package length that this data and this remainder formed may have the necessary length be shorter than needed for transmission in steps A-3. to produce, be with, just in steps A-3., these identification code data of part are increased in this data, and can make to merge in steps A-3. package that this data and this remainder formed and meet necessary length needed for transmission, and pass through said method, also this receiving terminal 20 can be made by the partial recognition code data in this data of identification, and can learn that this package by which this transmitting terminal sent fast.
Be with, the method for processing packet of radio tire pressure detecting system 1 of the present invention carries out computing by utilizing Cyclical Redundancy Check mode, respectively this transmitting terminal 10 can be made need not to be incorporated in package by these identification code data, and by calculating, this receiving terminal 20 also learns received package is sent for which transmitting terminal 10 after receiving package, and reach the effect of the packet size reduction that respectively this transmitting terminal 10 is sent.And after packet size reduction, not only can promote the success rate that package receives, and the probability that package collides can be reduced, and when can save wireless transmission process, the power consumption of power supply and circuit, and then the radio transmission efficiency promoting this radio tire pressure detecting system 1 entirety.
In addition, this data and this remainder merge by the package system sent, but not only send data, can make still to have certain secret effect during Signal transmissions.
The foregoing is only the better possible embodiments of the present invention, the equivalent structure that every application specification of the present invention and claim are done and manufacture method change, ought to be included in right of the present invention.
Claims (3)
1., for a method for processing packet for radio tire pressure detecting system, this radio tire pressure detecting system has a transmitting terminal and a receiving terminal; This transmitting terminal is in order to be sent to this receiving terminal by the data of the tire pressure recorded;
The signal processing method of this transmitting terminal includes the following step:
A-1. this data and identification code data are merged formation one serial data:
A-2. utilize a derivative multinomial to carry out Cyclical Redundancy Check to this serial data and obtain a remainder;
A-3. send after this data and this remainder being merged formation one package;
Signal processing method after this receiving terminal receives package includes the following step:
B-1. have in the data group of many group reference datas from one and take out wherein one group of reference data, and this reference data and the package received are carried out Cyclical Redundancy Check;
B-2. whether the remainder of inspection step B-1. gained is 0;
If not, then return step B-1. and carry out Cyclical Redundancy Check with other group reference data with the package received;
If so, this data in this package is then captured;
Wherein, when steps A-2. carry out remainder that Cyclical Redundancy Check obtains be less than a predetermined length time, then in steps A-3., increase these identification code data of part in this data.
2. the method for processing packet of radio tire pressure detecting system as claimed in claim 1, wherein, before this receiving terminal performs step B-1., first judges whether the length of the package received is a predetermined length; If not, then abandon received package, treat again to receive another package: if so, then perform step B-1..
3. the method for processing packet of radio tire pressure detecting system as claimed in claim 1, in this step B-2., when the remainder of step B-1. gained is not 0, first judge in this data group, whether all reference datas carry out Cyclical Redundancy Check with received package all: if, then abandon received package, treat again to receive another package: if not, then return step B-1. and carry out Cyclical Redundancy Check with other group reference data with the package received.
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| CN201110189079.3A CN102857321B (en) | 2011-06-30 | 2011-06-30 | Packaging processing method of wireless tire pressure sensing system |
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| CN201110189079.3A CN102857321B (en) | 2011-06-30 | 2011-06-30 | Packaging processing method of wireless tire pressure sensing system |
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| CN102857321B true CN102857321B (en) | 2015-05-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1681234A (en) * | 2004-04-10 | 2005-10-12 | 鸿富锦精密工业（深圳）有限公司 | Correctness checking system and method of data transmission |
| CN101494518A (en) * | 2008-01-25 | 2009-07-29 | 车王电子股份有限公司 | Method for processing packet of wireless communication |
| CN101854241A (en) * | 2009-03-30 | 2010-10-06 | 上海聚力传媒技术有限公司 | Method and device for verifying data block transmitted in network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4577574B2 (en) * | 2006-02-07 | 2010-11-10 | 日本電気株式会社 | Data transmitting apparatus, data receiving apparatus, data transmitting method, and data receiving method |
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- 2011-06-30 CN CN201110189079.3A patent/CN102857321B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1681234A (en) * | 2004-04-10 | 2005-10-12 | 鸿富锦精密工业（深圳）有限公司 | Correctness checking system and method of data transmission |
| CN101494518A (en) * | 2008-01-25 | 2009-07-29 | 车王电子股份有限公司 | Method for processing packet of wireless communication |
| CN101854241A (en) * | 2009-03-30 | 2010-10-06 | 上海聚力传媒技术有限公司 | Method and device for verifying data block transmitted in network |
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