CN103332076B - Magnetic force conveying type tyre pressure sensor and setting means and establishing method - Google Patents
Magnetic force conveying type tyre pressure sensor and setting means and establishing method Download PDFInfo
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- CN103332076B CN103332076B CN201310306993.0A CN201310306993A CN103332076B CN 103332076 B CN103332076 B CN 103332076B CN 201310306993 A CN201310306993 A CN 201310306993A CN 103332076 B CN103332076 B CN 103332076B
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Abstract
The invention discloses a kind of magnetic force conveying type tyre pressure sensor and setting means and establishing method, described tyre pressure sensor comprises the first micro-control unit, mnemon, the first power supply, pressure sensitive unit, temperature induction unit, acceleration induction unit, the first low-frequency transmission interface and magnetic force sensing cell; Described setting means comprises the second micro-control unit, internal storage location, display unit, magnetic force transmitter unit and the second low-frequency transmission interface; Described establishing method utilizes a magnetic force sensing cell be installed in tyre pressure sensor to receive the magnetic line of force that in a setting means, magnetic force transmitter unit sends, communications protocol is become to be stored in tyre pressure sensor the waveform transformation received again, the object that so not only can reach transmission over radio also can promote the degree of stability of signal transmission, and also can get rid of the quality of the restriction improving product of wireless regulation, and the present invention's also comparatively simple, power saving in the design of circuit, more need not be subject to the constraint of relevant radio regulation.
Description
Technical field
The present invention relates to the technical field of associated tire pressure detection, particularly relate to a kind of magnetic force conveying type tyre pressure sensor and setting means and establishing method.
Background technology
At present used on the market tire pressure sensing device, when installing setting, is all through wireless mode to carry out, and utilize a setting means wirelessly by the data transmission such as communications protocol or ID to tire pressure sensing device to complete setting.Carry out transmission signal with radio and all need modulation basic frequency, make basic frequency higher than more than 10 times of transmission data, therefore can make to launch the driving circuit of basic frequency and demodulator circuit all comparatively complexity and the power consumption of reception.Moreover the distance of transmitting radio signals far will will need larger emissive power, but transmitting range is far easily interfered again or strangle effect because of all general and cause the distortion of signal.In addition, the transmitter of wireless signal all needs application authentication to obtain license just to peddle in various countries.
Therefore, those skilled in the art is devoted to develop always and a kind ofly can overcomes above all problems, without the need to carrier wave, there is circuit structure with magnetic force transmission signal simple, also comparatively power saving, the magnetic force conveying type tyre pressure sensor of telecommunications rule restriction and setting means and establishing method can not be subject to.
Summary of the invention
In view of the deficiency that above-mentioned prior art exists, the present invention proposes that a kind of to have circuit structure with magnetic force transmission signal without the need to carrier wave simple, also comparatively power saving, and can not be subject to the magnetic force conveying type tyre pressure sensor of telecommunications rule restriction and setting means and establishing method.
The present invention is for achieving the above object, and a kind of tyre pressure sensor provided by the invention, includes:
One first micro-control unit;
One mnemon, described mnemon is connected with described first micro-control unit telecommunications;
One for providing the first power supply of described tyre pressure sensor required electric power, and described first power supply is connected with described first micro-control unit telecommunications;
One for measuring the pressure sensitive unit of tire internal gas pressure value, and described pressure sensitive unit is connected with described first micro-control unit telecommunications;
One for measuring the temperature induction unit of temperature in tire, and described temperature induction unit is connected with described first micro-control unit telecommunications;
One for measuring the acceleration induction unit of tyre accelerations, and described acceleration induction unit is connected with described first micro-control unit telecommunications;
One for sending the first low frequency (LowFrequency) coffret of low-frequency signal, and described first low-frequency transmission interface is connected with described first micro-control unit telecommunications;
One for sensing the change the magnetic force sensing cell waveform transformation of change being exported to described first micro-control unit that receive magnetic field, and described magnetic force sensing cell is connected with described first micro-control unit telecommunications.
Preferably, described magnetic force sensing cell is a hall sensor (HallSensor).
Preferably, described tyre pressure sensor also includes first wireless (RadioFrequency) coffret for sending signal, and described first wireless transmission interface is connected with described first micro-control unit telecommunications.
The present invention also proposes a kind of setting means, includes:
One second micro-control unit;
One for storing the internal storage location of tyre pressure sensor protocol data, and described internal storage location is connected with described second micro-control unit telecommunications;
One for showing the display unit of described setting means operation information, and described display unit is connected with described second micro-control unit telecommunications;
One for sending the magnetic force transmitter unit of magnetic line of force, and described magnetic force transmitter unit is connected with described second micro-control unit telecommunications;
One for receive tyre pressure sensor send the second low-frequency transmission interface of feedback signal, described second low-frequency transmission interface is connected with described second micro-control unit telecommunications.
Preferably, described magnetic force transmitter unit is an electromagnet.
Preferably, described setting means also includes one for receiving the second wireless transmission interface of the feedback signal that tyre pressure sensor sends, and described second wireless transmission interface is connected with described second micro-control unit telecommunications.
Preferably, described setting means also includes one for sending the alarm unit of alerting, and described alarm unit is connected with described second micro-control unit telecommunications.
The present invention also proposes a kind of establishing method of tyre pressure sensor, and it is specific as follows:
First provide just like the tyre pressure sensor described in the arbitrary claim of claim 1-3, and just like the setting means described in the arbitrary claim of claim 4-7;
Then the control program that will download in described tyre pressure sensor is selected at described setting means, after being encoded by the second micro-control unit of described setting means, by described magnetic force transmitter unit, described control program is passed to the magnetic force sensing cell reception of described tyre pressure sensor;
First micro-control unit of last described tyre pressure sensor, after reading the waveform that magnetic force sensing cell exports, restores control program originally and is stored in mnemon.
Preferably, described control program includes the communications protocol of tyre pressure sensor.
Preferably, described control program includes the ID (Identification) of tyre pressure sensor.
Therefore, magnetic force conveying type tyre pressure sensor of the present invention and setting means and establishing method, a magnetic force sensing cell be installed in tyre pressure sensor is utilized to receive the magnetic line of force that in a setting means, magnetic force transmitter unit sends in the present invention, communications protocol is become to be stored in tyre pressure sensor the waveform transformation received again, the object that so not only can reach transmission over radio also can promote the degree of stability of signal transmission, and also can get rid of the quality of the restriction improving product of wireless regulation.
In sum, the present invention carrys out with magnetic force the effect that transmission signal not only can reach transmission over radio, and also comparatively simple, constraint that power saving more need not be subject to relevant radio regulation in the design of circuit, significantly overcome the defect that prior art exists, reach object of the present invention.
Accompanying drawing explanation
Fig. 1 is the function block schematic diagram of tyre pressure sensor of the present invention;
Fig. 2 is the function block schematic diagram of setting means of the present invention;
Fig. 3 is the circuit diagram of setting means of the present invention and tyre pressure sensor part;
Schematic flow sheet when Fig. 4 is setting means setting operation of the present invention;
Schematic flow sheet when Fig. 5 is tyre pressure sensor setting operation of the present invention.
Primary clustering nomenclature in figure:
Tyre pressure sensor 10 first micro-control unit 11
Mnemon 12 first power supply 13
Pressure sensitive unit 14 temperature induction unit 15
Acceleration induction unit 16 first low-frequency transmission interface 17
First wireless transmission interface 18 magnetic force sensing cell 19
Setting means 20 second micro-control unit 21
Internal storage location 22 display unit 23
Alarm unit 24 magnetic force transmitter unit 25
Second low-frequency transmission interface 26 second wireless transmission interface 27
Switch 28 second source 29
Transistor Q1, Q2, Q3, Q4.
Detailed description of the invention
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Embodiment one:
Fig. 1 is the function block schematic diagram of tyre pressure sensor of the present invention.As shown in Figure 1, the present embodiment proposes a kind of tyre pressure sensor 10, includes:
One first micro-control unit 11;
One mnemon 12, mnemon 12 is connected with the first micro-control unit 11 telecommunications;
One is connected with the first micro-control unit 11 telecommunications for providing the first power supply 13, first power supply 13 of tyre pressure sensor 10 required electric power;
One for measuring the pressure sensitive unit 14 of tire internal gas pressure value, and pressure sensitive unit 14 is connected with the first micro-control unit 11 telecommunications;
One for measuring the temperature induction unit 15 of temperature in tire, and temperature induction unit 15 is connected with the first micro-control unit 11 telecommunications;
One for measuring the acceleration induction unit 16 of tyre accelerations, and acceleration induction unit 16 is connected with the first micro-control unit 11 telecommunications;
One for sending the first low-frequency transmission interface 17 of low-frequency signal, first low-frequency transmission interface 17 is connected with the first micro-control unit 11 telecommunications, first low-frequency transmission interface 17 sends low-frequency signal to the main frame that car is installed or a setting means, and this low-frequency signal can be 315MHz or 433MHz;
One for sensing the change the magnetic force sensing cell 19 waveform transformation of change being exported to the first micro-control unit 11 that receive magnetic field, magnetic force sensing cell 19 is connected with the first micro-control unit 11 telecommunications, exemplary, magnetic force sensing cell 19 is a hall sensor in the present embodiment.
Concrete, the tyre pressure sensor 10 of the present embodiment can also comprise one for sending the first wireless transmission interface 18 of signal, first wireless transmission interface 18 is connected with the first micro-control unit 11 telecommunications, and the first wireless transmission interface 18 can send signal to the main frame that car is installed or a setting means.In the present embodiment, the first low-frequency transmission interface 17 and the first wireless transmission interface 18 can select a setting or the two all arranges or wherein one is changed to wired splicing ear.
Embodiment two:
Fig. 2 is the function block schematic diagram of setting means of the present invention.Correspond to tyre pressure sensor 10, separately include a setting means 20 in the present invention and coordinate tyre pressure sensor 10, as shown in Figure 2, setting means 20 includes:
One second micro-control unit 21;
One for the internal storage location 22 of the ID (Identification) Yu protocol data that store tyre pressure sensor 10, and internal storage location 22 is connected with the second micro-control unit 21 telecommunications;
One for the display unit 23 of display setting instrument 20 operation information, and display unit 23 is connected with the second micro-control unit 21 telecommunications;
One for sending the magnetic force transmitter unit 25 of magnetic line of force, and magnetic force transmitter unit 25 is connected with the second micro-control unit 21 telecommunications, exemplary, and the magnetic force transmitter unit 25 of the present embodiment is an electromagnet;
One for receive tyre pressure sensor 10 send feedback signal the second low-frequency transmission interface 26, second low-frequency transmission interface 26 be connected with the second micro-control unit 21 telecommunications;
One for supplying the second source 29 of setting means 20 required electric power, and second source 29 is connected with the second micro-control unit 21 telecommunications.
As the further detailed description of the invention of the present embodiment, the setting means 20 of the present embodiment also includes: the second wireless transmission interface 27 and alarm unit 24.
One is connected with the second micro-control unit 21 telecommunications for the second wireless transmission interface 27, second wireless transmission interface 27 receiving the feedback signal that tyre pressure sensor 10 sends.In the setting means of the present embodiment, the second low-frequency transmission interface 26 and the second wireless transmission interface 27 can select a setting or the two all arranges or wherein one changes a wired splicing ear into.
One for sending the alarm unit 24 of alerting, and alarm unit 24 is connected with the second micro-control unit 21 telecommunications, exemplary, can adopt light or sound warning.
Embodiment three:
As shown in drawings, through the tyre pressure sensor 10 of embodiment one and the structure of the setting means 20 of embodiment two, the establishing method of the tyre pressure sensor of the present embodiment is as follows:
First tyre pressure sensor 10 in one embodiment one is provided, and the setting means 20 in an embodiment two; Then select the control program that will download in tyre pressure sensor 10 at setting means 20, after being encoded by the second micro-control unit 21 of setting means 20, the magnetic force sensing cell 19 by magnetic force transmitter unit 25 described control program being passed to tyre pressure sensor 10 receives; First micro-control unit 11 of last tyre pressure sensor 10, after reading the waveform that magnetic force sensing cell 19 exports, restores control program originally and is stored in mnemon 12.
As shown in Figure 3, be this setting means 20 in the present invention and the circuit diagram of tyre pressure sensor 10 part.Concrete, second micro-control unit 21 of setting means 20 connects one and controls four transistors Q1, Q2, Q3, Q4 by four switches 28 and connect the bridge circuit that a magnetic force transmitter unit 25 forms, wherein transistor Q3 and Q4 has ground connection, and this magnetic force transmitter unit 25 is an electromagnet in the present embodiment.
Schematic flow sheet when Fig. 4 is setting means setting operation of the present invention.As shown in Figure 4, the selected control program that will download on tyre pressure sensor 10 on setting means 20, described control program can be different because of different depots and different car moneys.Then send magnetic force transmitter unit 25 to after being encoded by the second micro-control unit 21 of setting means 20 control program is spread out of, its mode controlled can be such as the second micro-control unit 21 control Q1 and Q4 conducting and Q2 and Q3 not conducting, electromagnet and conducting, magnetic force sensing cell 19 now on tyre pressure sensor 10 can receive N pole, and magnetic force sensing cell 19 exports as Hi is to the first micro-control unit 11 of tyre pressure sensor 10.And if the second micro-control unit 21 control Q1 and Q4 not conducting and Q2 and Q3 conducting, electromagnet and conducting, magnetic force sensing cell 19 now on this tyre pressure sensor 10 can receive S pole, and magnetic force sensing cell 19 exports as Lo is to the first micro-control unit 11 of tyre pressure sensor 10.
By the mode of structure described above and control, control program can be transferred to tyre pressure sensor 10 by the magnetic force transmitter unit 25 of setting means 20, and the first micro-control unit 11 of tyre pressure sensor 10 can restore control program originally through calculation and be stored in mnemon 12 after reading the waveform that magnetic force sensing cell 19 exports.And setting means 20 can repeat transmission control procedure and wait for the feedback signal of tyre pressure sensor 10.First micro-control unit 11 of tyre pressure sensor 10 can carry out detecing calculation after receiving data by mistake, and when the data that tyre pressure sensor 10 receives are correct, tyre pressure sensor 10 can send a feedback signal to setting means 20 through the first wireless transmission interface 18 or the first low-frequency transmission interface 17 or wired coffret.Setting means 20 can stop spreading out of control program after receiving feedback signal.Described control program in the present embodiment can be the different communications protocol journey of each label or the ID of the ID of tyre pressure sensor or communications protocol and tyre pressure sensor.
And as shown in Figure 5, if tyre pressure sensor 10 receive data mal time, tyre pressure sensor 10 can not send feedback signal to setting means 20.Setting means 20 again can spread out of control program and again receive once by tyre pressure sensor before not receiving feedback signal, repeated this action to setting means 20 receives feedback signal.
In addition, problem in the present embodiment for eliminating counter electromotive force can adopt transistor Q1, Q2 not conducting, the mode of transistor Q3, Q4 conducting or transistor Q1, Q2, Q3, Q4 neither conducting is eliminated counter electromotive force, makes magnetically-actuated circuit can two-way, fast speed conversion.Do not limit will in graphic disclosed mode for the magnetically-actuated circuit of setting means 20 in the present embodiment, namely not necessarily will use four two circuit modes of switch, the mode in single loop also can be used such as to use, and single switch control rule one-transistor is the same with the one way circuit of a magnetic force transmitter unit can reach the effect exporting magnetic force.The effect that transmission signal not only can reach transmission over radio is carried out with magnetic force, and also comparatively simple, constraint that power saving more need not be subject to relevant radio regulation in the design of circuit, significantly improving the problem previously for improving, also reaching object of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a tyre pressure sensor, is characterized in that, includes:
One first micro-control unit;
One mnemon, described mnemon is connected with described first micro-control unit telecommunications;
One for providing the first power supply of described tyre pressure sensor required electric power, and described first power supply is connected with described first micro-control unit telecommunications;
One for measuring the pressure sensitive unit of tire internal gas pressure value, and described pressure sensitive unit is connected with described first micro-control unit telecommunications;
One for measuring the temperature induction unit of temperature in tire, and described temperature induction unit is connected with described first micro-control unit telecommunications;
One for measuring the acceleration induction unit of tyre accelerations, and described acceleration induction unit is connected with described first micro-control unit telecommunications;
One for sending the first low-frequency transmission interface of low-frequency signal, and described first low-frequency transmission interface is connected with described first micro-control unit telecommunications;
One for sensing the change the magnetic force sensing cell waveform transformation of change being exported to described first micro-control unit that receive magnetic field, and described magnetic force sensing cell is connected with described first micro-control unit telecommunications.
2. tyre pressure sensor as claimed in claim 1, is characterized in that: described magnetic force sensing cell is a hall sensor.
3. tyre pressure sensor as claimed in claim 1, is characterized in that: described tyre pressure sensor also includes one for sending the first wireless transmission interface of signal, and described first wireless transmission interface is connected with described first micro-control unit telecommunications.
4. a setting means, is characterized in that, includes:
One second micro-control unit;
One for storing the internal storage location of tyre pressure sensor protocol data, and described internal storage location is connected with described second micro-control unit telecommunications;
One for showing the display unit of described setting means operation information, and described display unit is connected with described second micro-control unit telecommunications;
One for sending the magnetic force transmitter unit of magnetic line of force, and described magnetic force transmitter unit is connected with described second micro-control unit telecommunications;
One for receive tyre pressure sensor send the second low-frequency transmission interface of feedback signal, described second low-frequency transmission interface is connected with described second micro-control unit telecommunications.
5. setting means as claimed in claim 4, is characterized in that: described magnetic force transmitter unit is an electromagnet.
6. setting means as claimed in claim 4, it is characterized in that: described setting means also includes one for receiving the second wireless transmission interface of the feedback signal that tyre pressure sensor sends, and described second wireless transmission interface is connected with described second micro-control unit telecommunications.
7. setting means as claimed in claim 4, it is characterized in that: described setting means also includes one for sending the alarm unit of alerting, described alarm unit is connected with described second micro-control unit telecommunications.
8. an establishing method for tyre pressure sensor, is characterized in that:
First provide just like the tyre pressure sensor described in the arbitrary claim of claim 1-3, and just like the setting means described in the arbitrary claim of claim 4-7;
Then the control program that will download in described tyre pressure sensor is selected at described setting means, after being encoded by the second micro-control unit of described setting means, by described magnetic force transmitter unit, described control program is passed to the magnetic force sensing cell reception of described tyre pressure sensor;
First micro-control unit of last described tyre pressure sensor, after reading the waveform that magnetic force sensing cell exports, restores control program originally and is stored in mnemon.
9. the establishing method of tyre pressure sensor as claimed in claim 8, is characterized in that: described control program includes the communications protocol of tyre pressure sensor.
10. the establishing method of tyre pressure sensor as claimed in claim 9, is characterized in that: described control program includes the ID of tyre pressure sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310306993.0A CN103332076B (en) | 2013-07-19 | 2013-07-19 | Magnetic force conveying type tyre pressure sensor and setting means and establishing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310306993.0A CN103332076B (en) | 2013-07-19 | 2013-07-19 | Magnetic force conveying type tyre pressure sensor and setting means and establishing method |
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| CN103332076B true CN103332076B (en) | 2015-12-02 |
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| CN201310306993.0A Active CN103332076B (en) | 2013-07-19 | 2013-07-19 | Magnetic force conveying type tyre pressure sensor and setting means and establishing method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9579938B2 (en) | 2015-06-01 | 2017-02-28 | Continental Automotive Systems, Inc. | Apparatus and method to adjust LF sensitivity of TPM sensor |
| US9522579B1 (en) | 2015-06-02 | 2016-12-20 | Continental Automotive Systems, Inc. | Tire pressure monitoring sensor |
| TWI607896B (en) * | 2015-11-11 | 2017-12-11 | Tire pressure monitoring system and using method thereof | |
| CN107512142B (en) * | 2017-09-05 | 2021-07-06 | 南京矽力微电子技术有限公司 | Code writing device, tire pressure monitoring unit and control method |
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| CN1082494A (en) * | 1993-07-26 | 1994-02-23 | 陆基 | Dynamic pressure monitoring device for automobile tyre |
| CN103085611A (en) * | 2011-10-28 | 2013-05-08 | 英飞凌科技股份有限公司 | Indirect tire pressure monitoring systems and methods |
| DE102012010969A1 (en) * | 2011-12-05 | 2013-06-06 | Cub Elecparts Inc. | Tire pressure sensor device and a method for adjusting it |
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