CN103342087B - TPMS transmitter prevents caliberating device and the calibration method of data collision - Google Patents

Abstract

The invention discloses the caliberating device that a kind of TPMS transmitter prevents data collision, comprise housing, be provided with treater in housing, surface of shell is provided with the read-out, the time gap that are connected with treater and arranges button, starts to demarcate button, projector excitation line interface and power interface.The present invention also discloses the calibration method utilizing this device.The present invention is on the basis not increasing TPMS transmitter hardware cost, the benchmark and fixed time interval launch time of multiple stage projector is set by caliberating device, thoroughly solve the data collision/collision problem of projector, and the time gap that receptor receives refreshing display data is fixed, and has good Consumer's Experience.

Description

TPMS transmitter prevents caliberating device and the calibration method of data collision

Technical field

The present invention relates to a kind of technology of tire temperature tire pressure monitoring system (TPMS) projector, particularly a kind of caliberating device and calibration method preventing data collision for TPMS transmitter.

Background technology

At present, TPMS product defends device as automobile active safety, the huge market demand.Chinese automobile research institute formulated the standard of TPMS in 2009, and the solar obligation standard of automobile also under study for action.Often overlap TPMS and comprise a receptor and multiple stage projector (for sake of convenience, illustrate for 4 projectors below), the identity label ID that each projector has oneself unique, every platform projector bears air pressure in the corresponding tire of existing detection and temperature regime, when an exception occurs, receptor sends warning, reminds chaufeur, the generation avoided traffic accident.

Successively 4 projectors are respectively installed on 4 bead seat of automobile during use, 4 projectors do not contact completely as Fig. 1.Here there is a hidden danger: the time gap that these 4 projectors send wireless data is random, and likely existence two or branched projector send wireless data, data collision simultaneously, cause data to send unsuccessfully.For preventing TPMS transmitter data collision, intercommunication system can be adopted in theory as Fig. 2, draw multiple LF transmitter by receptor, by being arranged on the LF projector on motor tire fender, control the transmission time interval of TPMS transmitter, collision free.This mode cost increase, install difficulty, TPMS enterprise domestic at present seldom adopts.

The data that current domestic TPMS enterprise adopts change often to prop up projector mostly launch the cycle, use every time gap sending data for twice to be all that random data sends collision to prevent data always.This technology, owing to not increasing hardware cost and cost of installation, adopted, but this technology is perfect first not, can not avoids data collision/collision problem completely by domestic large data TPMS enterprise; Secondly do not have rule for receptor receives the time showing data, Consumer's Experience is poor.This technological invention has been applied patent of invention (CN102285306A), and denomination of invention is that TPMS transmitter prevents data collision method.

Chinese patent application CN101425222A discloses a kind of data emitting method, and step comprises: projector, respectively according to different first launch time, sequentially launches data to this receptor in a transmitting cycle; Then these different first launch times are added with different accumulated value respectively, to become different second launch time respectively; Then these different accumulated value multiples added up those different first launch times; Those projectors last, according to those different second launch times, launch next data to this receptor in next transmitting cycle.This invention, by the method for different first launch time, improves the data collision problem of multiple projector, but the Transmission Time Interval of projector is different, and this technology can not avoid data collision/collision problem completely equally; And the time that receptor receives refreshing display data does not have rule yet, Consumer's Experience is poor.This is problem to be solved by this invention just.

Summary of the invention

The object of the invention is, for overcoming above-mentioned the deficiencies in the prior art, to provide a kind of TPMS transmitter to prevent data collision caliberating device and calibration method.

For achieving the above object, the present invention adopts following technical proposals:

TPMS transmitter prevents a caliberating device for data collision, comprises housing, is provided with treater in housing, and surface of shell is provided with the read-out, the time gap that are connected with treater and arranges button, starts to demarcate button, projector excitation line interface and power interface.

Described read-out is LCD display.

A kind of TPMS transmitter that utilizes prevents the caliberating device of data collision from preventing the calibration method of data collision, often overlapping after TPMS transmitter board production completes, before embedding, described caliberating device is used to carry out the triggering of constant duration to TPMS transmitter, to arrange benchmark launch time (being described for 4 projectors) of this cover TPMS transmitter below, concrete steps are as follows

1) connection lead is excited to access the projector excitation line interface of caliberating device successively some projectors;

2) power on to caliberating device, by time gap, to arrange level triggers time gap that button and LCD display arrange projector excitation line interface be T/4, T is wireless transmission data cycle of projector;

3) circuit card of the TPMS transmitter before embedding is fixed by fixture, excite connection lead to connect by thimble and the projector of fixture and be connected;

4) press starting on caliberating device and demarcate button;

5) some projector excitation line can become high level according to the time gap of T1=T2=T3=T/4 by low level successively;

6) when the treater of some projectors detects positive rise, start with regard to arranging the timing of oneself launching wireless data, the time reference that wireless data timing launched by such projector just differs T/4 successively, there is data collision never again, the read-out of receptor also can receive successively and show, and Consumer's Experience is good;

7) repeat above step 3), 4), 5) can demarcate different projectors or again demarcate.

The invention has the beneficial effects as follows, the present invention is on the basis not increasing TPMS transmitter hardware cost, the benchmark and fixed time interval launch time of multiple stage projector is set by caliberating device, thoroughly solve the data collision/collision problem of projector, and the time gap that receptor receives refreshing display data is fixed, and has good Consumer's Experience.

Accompanying drawing explanation

Fig. 1 is the layout schematic diagram of four projectors in prior art;

Fig. 2 is that in prior art, four projector intercommunication systems arrange schematic diagram;

Fig. 3 is calibration method schematic diagram of the present invention;

Fig. 4 is projector wireless data timing time benchmark schematic diagram;

Fig. 5 is caliberating device schematic diagram;

Wherein 1. caliberating devices, 2.#1 projector excites connection lead, and 3.#2 projector excites connection lead, 4.#3 projector excites connection lead, and 5.#4 projector excites connection lead, 6.#1TPMS transmitter circuit board, 7.#2TPMS transmitter circuit board, 8.#34TPMS transmitter circuit board, 9.#4TPMS transmitter circuit board, 10. time gap arranges button, 11.LCD read-out, 12. start to demarcate ammonium key, 13. projector excitation line interfaces, 14. treaters.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is further described.

As in Figure 3-5, TPMS transmitter prevents the caliberating device of data collision, comprises housing, time gap arranges button 10, LCD display 11, starts to demarcate ammonium key 12, projector excitation line interface 13 and treater 14 and form; Be provided with treater 14 in housing, surface of shell is provided with the LCD display 11, the time gap that are connected with treater 14 and arranges button 10, starts to demarcate button 12, projector excitation line interface 13 and power interface.

Often overlapping after TPMS transmitter board production completes, before embedding, described caliberating device is used to carry out the triggering of constant duration to TPMS transmitter, to arrange benchmark launch time of this cover TPMS transmitter.

Comprise 4 projectors with a set of TPMS system below, the wireless transmission data cycle of projector is that T illustrates the concrete implementation step preventing data collision method.

1. #1, #2, #3, #4 projector is excited connection lead 2,3,4,5 access the projector excitation line interface 13 of caliberating device 1 successively;

2. power on to caliberating device 1, arranging by time gap the level triggers time gap that button 10 and LCD display 11 arrange projector excitation line interface 13 is T/4;

3. #1, #2, #3, #4TPMS projector 6,7 before embedding, the circuit card of 8,9 is fixed by fixture, excites connection lead to connect 2 by the thimble of fixture and #1, #2, #3, #4 projector, and 3,4,5 are connected;

4. press starting on caliberating device 1 and demarcate button;

5.#1, #2, #3, #4 projector excitation line 2,3,4,5 can become high level according to the time gap of T1=T2=T3=T/4 by low level successively;

6. when #1, #2, #3, #4 projector 6,7,8, when the treater 14 of 9 detects positive rise, start with regard to arranging the timing of oneself launching wireless data, such #1, #2, #3, #4 projector 6,7,8,9 time references launching wireless data timing just differ T/4 successively, never again data collision occurs, the read-out of receptor also can receive successively and show, and Consumer's Experience is good;

7. repeat above step 3,4,5 can demarcate different projectors or again demarcate.

By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.

Claims (1)

1. the calibration method utilizing TPMS transmitter to prevent the caliberating device of data collision, described caliberating device comprises housing, treater is provided with in housing, surface of shell is provided with the read-out, the time gap that are connected with treater and arranges button, starts to demarcate button, projector excitation line interface and power interface, it is characterized in that, often overlapping after TPMS transmitter board production completes, before embedding, described caliberating device is used to carry out the triggering of constant duration to TPMS transmitter, to arrange benchmark launch time of this cover TPMS transmitter, concrete steps are as follows

1) connection lead is excited to access the projector excitation line interface of caliberating device successively some projectors;

2) power on to caliberating device, by time gap, to arrange level triggers time gap that button and read-out arrange projector excitation line interface be T/4, T is wireless transmission data cycle of projector;

3) circuit card of the TPMS transmitter before embedding is fixed by fixture, excite connection lead to be connected by thimble and the projector of fixture;

4) press starting on caliberating device and demarcate button;

5) some projector excitation line can become high level according to the time gap of T1=T2=T3=T/4 by low level successively;

6) when the treater of some projectors detects positive rise, start with regard to arranging the timing of oneself launching wireless data, the time reference that wireless data timing launched by such projector just differs T/4 successively, there is data collision never again, the read-out of receptor also can receive successively and show, and Consumer's Experience is good;

7) repeat above step 3), 4), 5) can demarcate different projectors or again demarcate.