CN1721834A - Tire pressure and temperature monitoring device - Google Patents
Tire pressure and temperature monitoring device Download PDFInfo
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- CN1721834A CN1721834A CN 200410069240 CN200410069240A CN1721834A CN 1721834 A CN1721834 A CN 1721834A CN 200410069240 CN200410069240 CN 200410069240 CN 200410069240 A CN200410069240 A CN 200410069240A CN 1721834 A CN1721834 A CN 1721834A
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Abstract
The invention relates to a tire pressure and temperature-monitoring device, especially to a monitoring device, which can real-time monitor tire pressure and temperature on the process of carriage running. It is formed by pressure and temperature monitoring signal emitting circuit device, which is inside many tires and pressure, and temperature monitoring signal receiving circuit device, which is inside the carriage.
Description
Technical field
The present invention relates to a kind of pressure and device for detecting temperature, particularly relate to the monitoring device that a kind of wheeled vehicle can be monitored tire pressure and temperature when driving in real time.
Background technology
In the driving process of automobile, particularly when running at high speed, tire fault is that all drivers worry and the most difficult prevention the most, also is the major reason that sudden traffic hazard takes place.The traffic hazard that takes place on highway causes owing to blowing out mostly.And cause that the principal element of blowing out has tyre underpressure to travel, the tire overvoltage is travelled and tire high temperature travels etc., according to the analysis expert at national rubber tyre quality supervision center, the tire pressure that maintains the standard is travelled and in time found to have a flat tire, in time control tyre temperature is to prevent the key of blowing out.As Granted publication CN2441131Y, on the August 1 calendar year 2001 day for announcing, patent No. CN00225758.0 provides a kind of automotive tire pressure and temperature monitor.But it has adopted common circuit arrangement, has increased the loaded down with trivial details work of vehicle wiring, installs and uses inconvenience; Adopt mechanical type to do dynamic monitoring, member is many, degree of accuracy is not accurate enough, easily produce the phenomenon of mechanical fatigue, influence the safe driving performance, used of a specified duration and can produce the loose contact phenomenon, and cause error in the monitoring, constantly enlarge, the degree of accuracy and the quality of influence monitoring are difficult to reach the purpose of monitoring wheel load and temperature.
Summary of the invention
Deficiency at above-mentioned prior art existence, technical matters to be solved by this invention has been to provide a kind of simple installation, use is reliable, the life-span is long, practical, the automotive tire pressure and the device for detecting temperature of intelligentized novelty, guarantee the precision and the quality of monitoring, realize vehicle actual time safety monitoring in the process of moving.
In order to solve the problems of the technologies described above, according to a scheme of the present invention, a kind of tire pressure and device for detecting temperature are provided, comprise: a housing, this housing is fixedly mounted in the air nozzle hole of tire, be provided with a printed circuit board (PCB) in this housing, on this printed circuit board (PCB), be provided with pressure and temperature monitoring signal transmission circuit device, it comprises a pressure and temp sensing unit, a signal encoding transmitter unit, and one first power-supply unit: this pressure and temp sensing unit is sensing tire pressure and tyre temperature, and the corresponding digital signal of output, with this digital signal and the high pressure reference value that in this pressure and temp sensing unit, presets, low pressure reference value and temperature reference value relatively are output as corresponding pulse signal with comparative result; This signal encoding transmitter unit is the pulse signal that detects this pressure and temp sensing unit output, and this pulse signal is converted to radio signal emission output; Required power supply when this first power-supply unit provides this pressure and temp sensing unit, the work of this signal encoding transmitter unit.
According to another aspect of the present invention, a kind of pressure and temperature monitoring signal receiving circuit device are provided, comprise a radio signal receiving element, a decoding transmission unit, a monitoring indicative control unit and a second source feeding unit: this radio signal receiving element is to receive the radio signal of being exported from this signal encoding transmitter unit, and with its output; This decoding transmission unit is the radio signal with this radio signal receiving element input, exports the digital signal of high pressure or low-voltage control signal and temperature signal through decoding; This monitoring indicative control unit is corresponding mutually with the tire of vehicle, and in the digital signal that receives this decoding transmission unit output, points out the tire pressure state and the state of temperature of each tire; This second source feeding unit provides this radio signal receiving element, required power supply during this decoding transmission unit and this monitoring indicative control unit work.
And this monitors indicative control unit, comprises a main control unit, a LCD display unit, a buzzing alarming unit, a state indicating member, a keyboard processing unit; This main control unit, the digital signal that receives this decoding transmission unit output are judged, and are transmitted information to this LCD display unit, this buzzing alarming unit, this state indicating member; This LCD display unit is used to receive the digital signal of this main control unit output, the tire pressure state and the state of temperature of each tire of liquid crystal display, and point out relevant failure message; This buzzing alarming unit receives the digital signal of this main control unit output, when the tire pressure up-set condition of tire or temperature up-set condition, and the buzzing caution; This state indicating member receives the digital signal of this main control unit output, with different colours light whether current tire condition is normally pointed out; This keyboard processing unit carries out interactive dialogue by keyboard operation to this main control unit, setting program, inquiry tire pressure and temperature conditions.
And this pressure and temperature monitoring signal receiving circuit device can also comprise a signal transmission unit, and this signal transmission unit links to each other with this monitoring indicative control unit, are used for carrying out the data input and output with external unit.
Adopt tire pressure provided by the present invention and device for detecting temperature, satisfy a kind of easy installation, used the requirement of reliable, long, practical, intelligentized automotive tire pressure of life-span and temperature-monitoring function, reduced the error in the monitoring, improve monitoring accuracy and quality, reached vehicle actual time safety monitoring effect in the process of moving.
Description of drawings
Fig. 1 is pressure of the present invention and temperature monitoring signal transmission circuit schematic diagram of device.
Fig. 2 is pressure of the present invention and temperature monitoring signal receiving circuit schematic diagram of device.
Fig. 3 is the signal displayed map of pressure of the present invention and temperature monitoring signal receiving circuit device.
Embodiment
The present invention is made up of with the pressure and the temperature monitoring signal receiving circuit device that are installed in the car the pressure and the temperature monitoring signal transmission circuit device that are installed in a plurality of tires.Pressure and temperature monitoring signal transmission circuit device, be fit to be screwed on the valve hole of doughnut, so just this pressure and temperature monitoring signal transmission circuit device can be installed on the existing vehicle, or this device can be installed in the doughnut, it includes the microcontroller of radio-frequency transmissions chip, and relevant peripheral circuit is formed.Pressure and temperature monitoring signal receiving circuit device, it is indoor easily to be convenient to be installed in car, can directly combine with automobile electric control system, also can combine with automobile electric control system by CAN-BUS, mainly by radiofrequency receiving chip and microcontroller and demonstration, sound, the peripheral circuit that light etc. are relevant is formed.
The present invention as shown in Figure 1, pressure and temperature monitoring signal transmission circuit device mainly comprise a pressure and temp sensing unit 1, signal encoding transmitter unit 2, first power-supply unit 3.Pressure and temperature in the pressure and temp sensing unit 1 sensing tire, the A/D conversion is carried out data acquisition by signal encoding transmitter unit 2, data relatively after, with the FSK pattern data are sent with radio signal, transmission frequency is 434MHz, and first power-supply unit, 3 power supplys are provided by the 3V lithium battery.
As shown in Figure 2, pressure and temperature monitoring signal receiving circuit device mainly comprise a radio signal receiving element 4, decoding transmission unit 5, a monitoring indicative control unit 13 and a second source feeding unit 6.Monitoring indicative control unit 13 can comprise a main control unit 9, LCD display unit 10, buzzing alarming unit 8, state indicating member 11, a keyboard processing unit 12.Radio signal receiving element 4 receives the pressure and temp data that send in each tire of automobile, utilizes decoding transmission unit 5 to analyze, handle.Pressure in automobile has a tire or temperature occur unusual, and main control unit 9 control LCD display units 10, buzzing alarming unit 8 and state indicating member 11 are reported to the police.When tire pressure is too high or too low, produce superpressure or undervoltage warning; When the tire temperature is too high, produce overtemperature alarm; When tire pressure descends rapidly, produce speed and fail to report the police.Second source feeding unit 6 can the tie point ignition source, provides the automobile power source of DC12V-14V by priming supply, also can be provided by additional battery.
As shown in Figure 3, the present invention can adopt liquid crystal display, sound and three kinds of modes of light to unite warning.Liquid crystal display 17 is used to show the information of LCD display unit 10 required demonstrations; Hummer 14 is the buzzing loudspeakers that are used for buzzing alarming unit 8; Status indicator lamp 15 is according to the control change light of state indicating member 11.When tire breaks down, the fault tire location sign of liquid crystal display 17 display of tyre tick lableses 16 and fault type symbol and corresponding tire pressure or Temperature numerical and unit, while hummer 14 sound, status indicator lamp 15 is that red light is bright.When tire condition just often, status indicator lamp 15 is a green light.Come call user's attention with this, and inform concrete failure condition, make the user take countermeasure to solve fault timely.
The present invention also adopts the warning mark of multiple image to represent fault type.Superpressure alarm lamp 25 shows when the superpressure situation appears in tire; Undervoltage warning lamp 24 shows when tire pressure is not enough; Overtemperature alarm lamp 23 shows when tyre temperature is too high; No signal alarm lamp 21 shows when the dropout of launching or pressure and the damage of temperature monitoring signal transmission circuit device; Light current alarm lamp 22 shows when the power shortage that first power-supply unit 3 provides; Have speed simultaneously and fail to report alert function, hummer 14 sends chimes of doom continuously when having a flat tire.
The present invention also provides multiple pressure, temperature unit, to satisfy the needs of different user.There are crust (Bar), kgf/cm in the indicated pressure unit of unit indicator 18
2Three kinds of (kgf), PSI (pound), temperature unit have C, following two kinds.The user can by the operation reading key 19 related with keyboard processing unit 12 with key 20 is set, selection pressure, temperature unit come pressure, the temperature value of display of tyre freely.The present invention adopts to read key 19 and key 20 is set and realizes parameter adjustment and read operation, key 20 is set realizes " setting " function, be used for parameter adjustment, read key 19 and realize " reading/return " function, be mainly used in the also collaborative key 20 that is provided with of the current tire condition of inquiry and finish the parameter adjustment operation.Its method of adjustment is simple, and is flexibly, workable.
On program software,, key 20 protects being set; only press and key 20 is set and continues 6 seconds; after hummer 14 sends " drip drip " sound affirmation system and enters the setting operation pattern; the user could be to its inner parameter: alarm threshold value, pressure and temp unit etc.; adjust, the parameter that can avoid like this causing because of carelessness changes by mistake moving.Reading key 19 is beneficial to the user and inquires about at ordinary times; Be mainly used in the state of the current doughnut of inquiry, whenever click and read key 19, system shows the position of next tire, corresponding force value and unit, the then temperature value and the unit of display of tyre, as the sign of display alarm simultaneously when breaking down; The state that shows other tire then successively.
The present invention also comprises a signal transmission unit 7, links to each other with monitoring indicative control unit 13, can be used for carrying out the data input and output with external unit, also makes things convenient for the upgrading of software.
The present invention has advantages such as simple installation, intellectuality, realization monitoring, is specially adapted to all kinds of vehicles such as car, passenger vehicle, lorry, trailer.
Claims (6)
1, a kind of tire pressure and device for detecting temperature comprise:
A housing, this housing are fixedly mounted in the air nozzle hole of tire, are provided with a printed circuit board (PCB) in this housing, are provided with pressure and temperature monitoring signal transmission circuit device on this printed circuit board (PCB), it is characterized in that,
This pressure and temperature monitoring signal transmission circuit device comprise a pressure and temp sensing unit (1), a signal encoding transmitter unit (2), reach one first power-supply unit (3):
This pressure and temp sensing unit (1) is sensing tire pressure and tyre temperature, and the corresponding digital signal of output, with this digital signal with at this pressure and temp sensing unit (1) comparative result is output as corresponding pulse signal;
This signal encoding transmitter unit (2) is the pulse signal that detects this pressure and temp sensing unit (1) output, and this pulse signal is converted to radio signal emission output; In the high pressure reference value, low pressure reference value that preset and temperature reference value relatively,
Required power supply when this first power-supply unit (3) provides this pressure and temp sensing unit (1), the work of this signal encoding transmitter unit (2), it is a normal power supply, makes tire pressure and device for detecting temperature be in the real-time working state.
2, a kind of described pressure of claim 1 and temperature monitoring signal receiving circuit device of being applicable to is characterized in that,
This pressure and temperature monitoring signal receiving circuit device comprise a radio signal receiving element (4), a decoding transmission unit (5), monitoring indicative control unit (13) and a second source feeding unit (6):
This radio signal receiving element (4) is to receive the radio signal of being exported from this signal encoding transmitter unit (2), and with its output;
This decoding transmission unit (5) is the radio signal with this radio signal receiving element (4) input, exports the digital signal of high pressure or low-voltage control signal and temperature signal through decoding;
This monitoring indicative control unit (13) is corresponding mutually with the tire of vehicle, and in the digital signal that receives this decoding transmission unit (5) output, points out the tire pressure state and the state of temperature of each tire;
This second source feeding unit (6) provides this radio signal receiving element (4), required power supply during this decoding transmission unit (5) and this monitoring indicative control unit (13) work.
3, pressure according to claim 2 and temperature monitoring signal receiving circuit device is characterized in that,
This monitors indicative control unit (13), comprises a main control unit (9), a LCD display unit (10) and a keyboard processing unit (12):
This main control unit (9), the digital signal that receives this decoding transmission unit (5) output is judged, and is transferred to this LCD display unit (10);
This LCD display unit (10) is used to receive the digital signal of this main control unit (9) output, the tire pressure state and the state of temperature of each tire of liquid crystal display, and point out relevant failure message;
This keyboard processing unit (12) carries out interactive dialogue by keyboard operation to this main control unit (9), setting program, inquiry tire pressure and temperature conditions.
4, pressure according to claim 2 and temperature monitoring signal receiving circuit device is characterized in that,
This monitors indicative control unit (13), comprises a main control unit (9), a buzzing alarming unit (8) and a keyboard processing unit (12);
This main control unit (9), the digital signal that receives this decoding transmission unit (5) output is judged, and is transferred to this buzzing alarming unit (8);
This buzzing alarming unit (8) receives the digital signal of this main control unit (9) output, when the tire pressure up-set condition of tire or temperature up-set condition, and the buzzing caution;
This keyboard processing unit (12) carries out interactive dialogue by keyboard operation to this main control unit (9), setting program, inquiry tire pressure and temperature conditions.
5, pressure according to claim 2 and temperature monitoring signal receiving circuit device is characterized in that,
This monitors indicative control unit (13), comprises a main control unit (9), a state indicating member (11) and a keyboard processing unit (12);
This main control unit (9), the digital signal that receives this decoding transmission unit (5) output is judged, and is transferred to this state indicating member (11);
This state indicating member (11) receives the digital signal of this main control unit (9) output, with different colours light whether current tire condition is normally pointed out;
This keyboard processing unit (12) carries out interactive dialogue by keyboard operation to this main control unit (9), setting program, inquiry tire pressure and temperature conditions.
6, according to any described pressure and temperature monitoring signal receiving circuit device in the claim 3,4,5, it is characterized in that,
This pressure and temperature monitoring signal receiving circuit device also comprise a signal transmission unit (7).Be used for carrying out the data input and output with external unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410069240 CN1721834A (en) | 2004-07-16 | 2004-07-16 | Tire pressure and temperature monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410069240 CN1721834A (en) | 2004-07-16 | 2004-07-16 | Tire pressure and temperature monitoring device |
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| CN1721834A true CN1721834A (en) | 2006-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410069240 Pending CN1721834A (en) | 2004-07-16 | 2004-07-16 | Tire pressure and temperature monitoring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555920A (en) * | 2011-12-29 | 2012-07-11 | 深圳市领华卫通数码科技有限公司 | Method for monitoring tire pressure by using rearview mirror system and rearview mirror system |
| CN102612642A (en) * | 2009-11-06 | 2012-07-25 | 本田技研工业株式会社 | Fault diagnosis device for vehicle |
| CN103196674A (en) * | 2013-03-18 | 2013-07-10 | 中国汽车技术研究中心 | Vehicle test environment information collection system in altitude environment |
| CN104412093A (en) * | 2011-10-31 | 2015-03-11 | 测量有限公司 | Combination tire temperature, pressure and depth measuring device |
| CN106114080A (en) * | 2016-07-29 | 2016-11-16 | 清华大学苏州汽车研究院（吴江） | Tire pressure monitoring early warning system based on the absolute relative method of wheel pulse number and method |
-
2004
- 2004-07-16 CN CN 200410069240 patent/CN1721834A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612642A (en) * | 2009-11-06 | 2012-07-25 | 本田技研工业株式会社 | Fault diagnosis device for vehicle |
| US8825275B2 (en) | 2009-11-06 | 2014-09-02 | Honda Motor Co., Ltd. | Trouble diagnosis device |
| CN104412093A (en) * | 2011-10-31 | 2015-03-11 | 测量有限公司 | Combination tire temperature, pressure and depth measuring device |
| CN102555920A (en) * | 2011-12-29 | 2012-07-11 | 深圳市领华卫通数码科技有限公司 | Method for monitoring tire pressure by using rearview mirror system and rearview mirror system |
| CN103196674A (en) * | 2013-03-18 | 2013-07-10 | 中国汽车技术研究中心 | Vehicle test environment information collection system in altitude environment |
| CN103196674B (en) * | 2013-03-18 | 2015-09-09 | 中国汽车技术研究中心 | A kind of vehicle test environment information collection system in altitude environment |
| CN106114080A (en) * | 2016-07-29 | 2016-11-16 | 清华大学苏州汽车研究院（吴江） | Tire pressure monitoring early warning system based on the absolute relative method of wheel pulse number and method |
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