CN102529605B - Wireless tire pressure sensor and standard pressure setting method - Google Patents
Wireless tire pressure sensor and standard pressure setting method Download PDFInfo
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- CN102529605B CN102529605B CN201010593611.3A CN201010593611A CN102529605B CN 102529605 B CN102529605 B CN 102529605B CN 201010593611 A CN201010593611 A CN 201010593611A CN 102529605 B CN102529605 B CN 102529605B
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- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The invention provides a wireless tire pressure sensor and a standard pressure setting method, a wireless tire pressure triggering device; mainly the wireless tire pressure sensor without a preset threshold value is mounted on a tire; the pressure of each tire is adjusted to a standard pressure of each tire according to actual demand of a vehicle; then the tire is maintained at the standard pressure for a preset period, or a specified wireless signal is emitted to the wireless tire pressure sensor by the wireless tire pressure triggering device outside the tires; and thus a pressure at that time is set as a standard pressure; with the above design, a standard tire pressure can be easily set for the wireless tire pressure sensor, and can be modified conveniently; on the other hand, no presetting of a tire pressure threshold value is necessary for the wireless tire pressure sensor, so no preparation of wireless tire pressure sensor stock for different tire pressure threshold values is necessary, which effectively reduces the stock pressure.
Description
Technical field
The invention relates to a kind of tire pressure sensing device and method, espespecially a kind of radio tire pressure sensor and establishing method thereof that can simple and easy established standards pressure.
Background technology
A kind of known radio tire pressure monitoring system (WTPMS, Wireless Tire Pressure Monitoring System) be as shown in Figure 7, it comprises that point radio tire pressure sensor 71～74 and being located in each tire of automobile is located at the monitor unit 70 in automobile; Wherein each radio tire pressure sensor 71～74 has control unit, wireless high-frequency transmission circuit and the low frequency acceptor circuit of battery, sensing element, built-in or plug-in memory body in respectively, and each radio tire pressure sensor 71～74 configures one group of 8 bit or exclusive numberings more than 8 bits at the Shi Douhui that dispatches from the factory.
After radio tire pressure monitoring system starts, each radio tire pressure sensor 71～74 utilizes its wireless high-frequency transmission circuit by detected tire information and exclusive numbering thereof regular or fitfull, send monitor unit 70 to the coded system of fixing, when monitor unit 70 is received after data, to first come from Ben Che or other vehicle by the comparison of exclusive numbering with confirmation data, under the data acknowledging receipt of belongs to native system in vehicle, also the data of can learning comes from the interior set radio tire pressure sensor 71～74 of that tire on automobile, then carry out subsequently tire pressure, the deciphering of temperature and other correlation parameter with compare.
General originating firm can be stored in standard tire pressure, low voltage threshold value, high pressure threshold value and other relevant threshold value in the memory body of monitor unit 70 before radio tire pressure monitoring system is dispatched from the factory, therefore, after monitor unit 70 is compared the tire pressure of reception and other correlation parameter and default threshold value, can judge whether this tire occurs different shape.
As described in front taking off, most radio tire pressure monitoring system is that the information such as standard tire pressure or threshold value are stored in the memory body of monitor unit 70, but also some radio tire pressure sensor can store in advance relevant standard tire pressure before dispatching from the factory, so that in the tire pressure of monitoring or other parameter while exceeding default threshold value, mode with comparatively dense transmits information, by the variation of tire and unusual condition notice monitor unit, reach the object of warning ahead of time steerman ahead of time.
But, because commercially available numerous car moneys there is no unified tire pressure standard, different car moneys, load-carrying and tire form have different standard tire pressures, for example some car owner likes changing the tire of former factory into low section tyre or performance tires, the tire that the required standard pressure of this class tire configures compared with former factory is high, if still use original threshold value, easily cause inefficacy or the erroneous judgement of system, therefore in the time that the required tire pressure value of tire is different from default tire pressure value, the technical personnel of maintenance factory or tire store must be adjusted the threshold value in monitor unit 70 in manual mode, because the threshold value method of calculating of every a radio tire pressure detecting system is all different, and the process of the threshold value in adjustment monitor unit is very numerous and diverse, very inconvenient for operator.
For solving foregoing problems, patent announcement No. 533149 " method and the structure thereof of tire pressure detector group setting pressure warning value " patent of invention case in tw Taiwan proposes a solution, mainly will be installed in tire by tire pressure detector, and the tire pressure value of reacting tire with wireless transmission method is to main control unit, makes driver be understood current tire pressure situation; And the main control unit that is positioned at car has an operation values, in order to calculate the average tire pressure value of two front-wheels and two trailing wheels, after storage, be set as detecting the warning pressure value of each front and back pressure of tire in the future.Utilize preceding method to make tire pressure detector group need, for different car money tire pressure standard setting warning pressure values before dispatching from the factory, not make this tire pressure detector group be applicable to various car money tires.
Main control unit described in this Patent Case is the monitor unit 70 of aforementioned radio tire pressure monitoring system namely, but the technological means of its proposition has only solved the problem that monitor unit 70 is set, still undecided about the setting problem of radio tire pressure sensor.
Moreover, mention some radio tire pressure sensor above and before dispatching from the factory, be preset with threshold value or standard pressure, because radio tire pressure sensor is mounted in sealing completely in tire and before dispatching from the factory, therefore known radio tire pressure sensor cannot revise threshold value after dispatching from the factory, the radio tire pressure sensor that therefore originating firm must the multiple different threshold values of stock and produced warehousing pressure.
Summary of the invention
Therefore main purpose of the present invention is to provide a kind of standard pressure establishing method of radio tire pressure sensor, and it is after being installed in tire, to begin to set, and can conveniently revise, and can solve by this setting and the inventory problem of radio tire pressure sensor.
To make a radio tire pressure sensor carry out following steps for reaching the technical way that aforementioned object takes:
Carry out and confirm timing;
After confirming that timing finishes, sensing tire pressure at that time, and the tire pressure of sensing is set as to standard pressure;
Utilize preceding method the radio tire pressure sensor of preset standard pressure not can be arranged in tire, according to vehicle actual demand, the pressure of each tire is adjusted to again to the standard pressure of each tire, make subsequently tire maintain the one default period (confirmation timing) in this standard pressure, after confirming that timing finishes, automatically radio tire pressure sensor is considered as institute's pressure sensor at that time the standard pressure of tire, completes easily immediately the setting of radio tire pressure sensor standard pressure.
To make a radio tire pressure sensor carry out following steps for reaching the another technical way that aforementioned object takes:
Judge whether to receive setting instruction;
Receive and set after instruction, sensing tire pressure at that time;
The tire pressure of sensing is set as to standard pressure.
Utilize preceding method the radio tire pressure sensor of preset standard pressure not can be arranged in tire, according to vehicle actual demand, each tyre inflating is arrived to required force value again, by outside, radio tire pressure sensor is sent to a setting instruction again, by the pressure of the instant sensing tire of radio tire pressure sensor, and be set as standard pressure.
Aforementioned radio tire pressure sensor is further externally launched the standard pressure of setting.
Another object of the present invention is providing a kind of radio tire pressure flip flop equipment that can simple and easy established standards pressure.
To make aforementioned radio tire pressure flip flop equipment include for reaching the technical way that aforementioned object takes:
One microcontroller;
One transmission circuit, is to be connected with the mouth of aforementioned microcontroller, in order to radio tire pressure sensor transmitting one is set to instruction;
One acceptor circuit, is to be connected with the receiving end of aforementioned microcontroller, in order to receive the tire pressure of radio tire pressure sensor passback;
When a radio tire pressure sensor is through in being mounted to tire and after starting, can be first by operating personal by tyre inflating to the actual required pressure of vehicle, utilize aforementioned radio tire pressure sensing device transmitting one to set instruction to radio tire pressure sensor, this radio tire pressure sensor immediately sensing is obtained tire pressure outwards transmitting, and is received and be set as the standard pressure of this radio tire pressure sensor by radio tire pressure sensing device.
Still a further object of the present invention is providing a kind of radio tire pressure sensor, to enter set-up function by external trigger mode.
To make aforementioned radio tire pressure sensor include for reaching the technological means that aforementioned object takes:
One microprocessor;
More than one sensor chip, is provided in a side of on the input end of microprocessor, with the pressure in sensing tire, temperature;
A high frequency transmission circuit, is provided in a side of on the mouth of microprocessor;
One induction element, is provided in a side of on the input end of microprocessor, sets instruction in order to accept a startup;
One power supply is the working power of supplying aforementioned microprocessor, described more than one sensor chip, described high frequency transmission circuit and described induction element;
Aforementioned radio tire pressure sensor can utilize external trigger mode to start set-up function, be also its induction element institute perception when a driver element approaches radio tire pressure sensor, and maintain after a period of time, can be considered and receive setting instruction, and carry out sensing and established standards pressure.
To make aforementioned radio tire pressure sensor include for reaching the another technological means that aforementioned object takes:
One microprocessor;
More than one sensor chip, is provided in a side of on the input end of microprocessor, with the pressure in sensing tire, temperature;
A high frequency transmission circuit, is provided in a side of on the mouth of microprocessor;
One low frequency acceptor circuit, is provided in a side of on the input end of microprocessor;
One power supply is the working power of supplying described microprocessor, described more than one sensor chip, described high frequency transmission circuit and described low frequency acceptor circuit;
Aforementioned radio tire pressure sensor can receive the order of radio tire pressure flip flop equipment definiteness by this low frequency acceptor circuit, to start set-up function by external trigger mode.
Based on previous designs, the present invention has following advantages:
1. originating firm, without the radio tire pressure sensor of the various various criterion pressure of stock or threshold value again, avoids causing warehousing pressure.
2. when client, can modify by preceding method when different from preset value simply for the standard pressure of tire or threshold value.
Accompanying drawing explanation
Fig. 1 is the diagram of block of a typical radio tyre pressure sensor;
Fig. 2 is the diagram of circuit of standard pressure establishing method one preferred embodiment of the present invention;
Fig. 3 is the diagram of circuit of the another preferred embodiment of standard pressure establishing method of the present invention;
Fig. 4 A, Fig. 4 B are the diagram of blocks of wireless trigger device one possible embodiments of the present invention;
Fig. 5 is the diagram of circuit of standard pressure amending method one preferred embodiment of the present invention;
Fig. 6 is the diagram of circuit of the another preferred embodiment of standard pressure amending method of the present invention;
Fig. 7 is the schematic diagram of existing radio tire pressure monitoring system.
The specific embodiment
Below coordinate preferred embodiment graphic and of the present invention, further set forth the technological means that the present invention takes for reaching predetermined goal of the invention.
A kind of typical radio tire pressure sensor 10 is as shown in Figure 1, includes a microprocessor 11, more than one sensor chip 12, high frequency transmission circuit 13 and a power supply 15; Wherein, microprocessor 11 is to obtain tire pressure and other correlation parameters (as temperature) by sensor chip 12 sensings, then will obtain tire pressure relevent information via high frequency transmission circuit 13 and be transmitted to a monitor unit; Its medium high frequency refers to frequency relatively high in native system, high frequency can be: the public frequency that 315MHz, 433MHz, 447MHz or other local government are open, and low frequency refers to frequency relatively low in native system, low frequency can be: the public frequency that 125kHz, 13.56MHz or other local government are open; Aforesaid sensor chip 12, except pressure sensor, temperature, also can further be integrated other sensing functions or element, such as acceleration/accel and magnetic sensing element etc. again.
And a preferred embodiment of tire standards pressure setting method of the present invention is to make aforementioned microprocessor 11 carry out following steps (as shown in Figure 2):
Start (201);
Carry out and confirm timing (202);
Judge and confirm whether timing finishes (203);
When confirming that timing finishes, i.e. sensing tire pressure (204) at that time;
The tire pressure of sensing is set as to standard pressure (205).
When a radio tire pressure sensor 10 can be carried out aforementioned flow process, need not before dispatching from the factory, preset standard pressure or threshold value, and be looked characteristic and the actual demand established standards pressure of tire at installation rear, its concrete implementation is as described below:
First be that the radio tire pressure sensor 10 of preset standard pressure is not yet arranged in tire, if radio tire pressure sensor 10 starts and enters set model in next the giving of the situation of closing; Then according to vehicle actual demand, the pressure of tire is adjusted to a standard value, maintain next the default period of this standard value with the pressure of relief tire, during the confirmation timing that this Preset Time that is microprocessor 11 are carried out, this Preset Time can be 30 minutes or is longer, shorter, and the microprocessor 11 of radio tire pressure sensor 10 is after confirming that timing finishes, immediately by sensor chip 12 sensing tires pressure instantly, and the standard pressure that is tire by this pressure setting automatically; Can on radio tire pressure sensor 10, complete easily by this setting of standard pressure.
In preceding method, radio tire pressure sensor 10 is after execution confirms that timing finishes, and on one's own initiative the tire pressure of institute's sensing is set as to standard pressure; Only, except aforesaid active setting means, the present invention also can accept outside energizing signal and passively the tire pressure of institute's sensing is set as to standard pressure, and its method is as shown in Figure 3, comprises the following steps:
Start (301);
Judge whether to receive setting instruction (302);
Receive and set after instruction, sensing tire pressure (303) at that time;
The tire pressure of sensing is set as to standard pressure (304).
The concrete methods of realizing of preceding method is still and the radio tire pressure sensor 10 of preset standard pressure is not yet arranged in tire and gives starting and enter set model; Then according to vehicle actual demand, the pressure of tire is adjusted to a standard value, set instruction to radio tire pressure sensor 10 by external emission one subsequently, the microprocessor 11 of this radio tire pressure sensor 10 is obtained tire pressure instantly by sensor chip 12 sensings immediately, and the standard pressure that is tire by this pressure setting automatically.
Moreover, aforementioned radio tire pressure sensor 10 is except being set as the tire pressure of institute's sensing standard pressure actively or passively, also can further the standard pressure of setting outwards be transmitted to (305), obtain the standard pressure of this radio tire pressure sensor 10 for outside, as the foundation of monitor unit computing warning critical value.
Please further consult shown in Fig. 4 A, in order to radio tire pressure sensor 10 is launched to the radio tire pressure flip flop equipment 20 of setting signal in preceding method, in the present embodiment, this radio tire pressure sensor 10 is except microprocessor 11, sensor chip 12, high frequency transmission circuit 13 and power supply 15, further on the input end of microprocessor 11, be provided with a low frequency acceptor circuit 14, and receive the setting instruction of radio tire pressure flip flop equipment 20 by this low frequency acceptor circuit 14; Again
This radio tire pressure flip flop equipment 20 comprises a microcontroller 21, a low frequencies circuit 22 and a power supply 23; This microcontroller 21 can be launched and set instructions radio tire pressure sensor 10 by transmission circuit 22 under operator controls.
Again as shown in Figure 4 B, be another preferred embodiment of aforementioned radio tire pressure flip flop equipment 20, it,, except setting instruction 10 transmittings of radio tire pressure sensor, also can further receive the standard pressure information that radio tire pressure sensor 10 is launched.This radio tire pressure flip flop equipment 20, except aforesaid microcontroller 21, low frequencies circuit 22 and power supply 23, further comprises a high frequency receiving circuit 24; By this, this microcontroller 21 is except can, by low frequencies circuit 22 to the 10 transmitting setting instructions of radio tire pressure sensor, more receiving the standard pressure information that radio tire pressure sensor 10 is launched by this high frequency receiving circuit 22.
Aforementioned wireless trigger device 20 can be in order to specially radio tire pressure sensor 10 is launched to the self contained system of setting instructions and receiving standard pressure, it can be a handheld apparatus, also can in build in the monitor unit of radio tire pressure monitoring system or be arranged near wheel.
As described in front taking off, this wireless trigger device 20 can, by low frequencies circuit 22 to the 10 transmitting setting instructions of radio tire pressure sensor, make radio tire pressure sensor 10 sensings established standards pressure.Except aforesaid low frequency signal external trigger mode, also can carry out external trigger, so-called external trigger mode refers to and in radio tire pressure sensor 10, is provided with an induction element, coordinate the control flow of microprocessor 11, be also its induction element institute perception when a driver element approaches radio tire pressure sensor 10, and for example maintain, after a period of time (1～3 second), can be considered and receive setting instruction, and carry out sensing and established standards pressure.Aforementioned induction element can be a magnetic sensing element, and the driver element being approached by outside is one can produce the flip flop equipment of magnetic, for example magnet.
Moreover, the present invention, under aforementioned basis, further provides the amending method of two kinds of standard pressure, as described in front taking off, because being mounted in, radio tire pressure sensor in tire and before dispatching from the factory, completes sealing, and therefore must be by cordless with Standard modification pressure:
As shown in Figure 5, disclose the method that has the contactless Standard modification pressure of the first, it comprises the following steps:
Start (501);
Judge that whether tire pressure is zero or lower than a critical value (502);
When tire pressure is zero or lower than critical value, carry out first and confirm timing (503);
Judge that first confirms whether timing finishes (504);
When the first confirmation timing finishes, sensing tire pressure (505) at that time;
Carry out second and confirm timing (506);
Judge that second confirms whether timing finishes (507);
When the second confirmation timing finishes, the tire pressure of sensing is set as to standard pressure (508).
The specific implementation of aforementioned modifications method is by leakage of tyre, make the radio tire pressure sensor in tire under stress-free state, exceed a default time (first confirmation timing, for example: three minutes), then the standard pressure value of tyre inflating being set to institute's wish, making radio tire pressure sensor in tire be maintained at new standard pressure value exceedes a Preset Time (second confirms timing, for example: five minutes), after Preset Time finishes, this radio tire pressure sensor can automatic sensing-detecting tire pressure and is set as new standard pressure value.
As shown in Figure 6, disclose the method that has the contactless Standard modification pressure of the second, it comprises the following steps:
Enter modification pattern (601);
Judge whether to receive modify instruction (602);
Receive after modify instruction sensing tire pressure (603) at that time;
The tire pressure of sensing is set as to standard pressure (604).
The specific implementation of preceding method is the standard pressure value that tyre inflating is set to institute's wish, radio tire pressure flip flop equipment transmitting modify instruction outside recycling tire is to radio tire pressure sensor, when radio tire pressure sensor receives after modify instruction, sensing tire pressure is at that time set as to standard pressure, or further the standard pressure information of sensing is launched to the foundation for monitor unit as computing.
The above is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, not departing from the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (1)
1. a standard pressure establishing method for radio tire pressure sensor, is characterized in that: make a radio tire pressure sensor carry out following steps:
Carry out and confirm timing;
After confirming that timing finishes, sensing tire pressure at that time, and the tire pressure of sensing is set as to standard pressure;
Be zero or lower than a critical value of standard pressure by leakage of tyre to tire pressure;
Judge that whether tire pressure is zero or lower than critical value;
When tire pressure is zero or lower than critical value, carry out first and confirm timing;
Judge that first confirms whether timing finishes;
When the first confirmation timing finishes, sensing tire pressure at that time;
The standard value that tyre inflating is set to institute's wish;
Carry out second and confirm timing;
Judge that second confirms whether timing finishes;
When the second confirmation timing finishes, the tire pressure of sensing is set as to standard pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010593611.3A CN102529605B (en) | 2010-12-17 | 2010-12-17 | Wireless tire pressure sensor and standard pressure setting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010593611.3A CN102529605B (en) | 2010-12-17 | 2010-12-17 | Wireless tire pressure sensor and standard pressure setting method |
Publications (2)
| Publication Number | Publication Date |
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| CN102529605A CN102529605A (en) | 2012-07-04 |
| CN102529605B true CN102529605B (en) | 2014-06-18 |
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| CN201010593611.3A Expired - Fee Related CN102529605B (en) | 2010-12-17 | 2010-12-17 | Wireless tire pressure sensor and standard pressure setting method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192669B (en) * | 2013-03-27 | 2015-05-20 | 上海为彪汽配制造有限公司 | Tire pressure sensor setting method |
| CN109203875B (en) * | 2017-07-07 | 2020-10-27 | 杭州中策车空间汽车服务有限公司 | Information processing method and system for integrated tire networking |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301846A (en) * | 2008-02-22 | 2008-11-12 | 哈尔滨工业大学 | Automotive tire pressure monitoring system calibration instrument and calibration method |
| CN101618666A (en) * | 2008-07-02 | 2010-01-06 | 黄腾文 | The circuit arrangement of tyre pressure alarm and method of inspection thereof |
| CN101791931A (en) * | 2009-02-03 | 2010-08-04 | 上海保隆汽车科技股份有限公司 | Tire pressure monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW533149B (en) * | 2002-09-12 | 2003-05-21 | Lite On Automotive Corp | Method for setting pressure alarming of tire detection assembly and structure thereof |
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- 2010-12-17 CN CN201010593611.3A patent/CN102529605B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301846A (en) * | 2008-02-22 | 2008-11-12 | 哈尔滨工业大学 | Automotive tire pressure monitoring system calibration instrument and calibration method |
| CN101618666A (en) * | 2008-07-02 | 2010-01-06 | 黄腾文 | The circuit arrangement of tyre pressure alarm and method of inspection thereof |
| CN101791931A (en) * | 2009-02-03 | 2010-08-04 | 上海保隆汽车科技股份有限公司 | Tire pressure monitoring system |
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| CN102529605A (en) | 2012-07-04 |
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