CN201051031Y - Tyre air pressure detection device - Google Patents
Tyre air pressure detection device Download PDFInfo
- Publication number
- CN201051031Y CN201051031Y CNU2007200384007U CN200720038400U CN201051031Y CN 201051031 Y CN201051031 Y CN 201051031Y CN U2007200384007 U CNU2007200384007 U CN U2007200384007U CN 200720038400 U CN200720038400 U CN 200720038400U CN 201051031 Y CN201051031 Y CN 201051031Y
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Abstract
The utility model discloses a tyre gas pressure detection device, which comprises a tyre work parameters collection circuit module, a wireless communication receiving and sending circuit module, a controller circuit module, an information display circuit module, and a network communication interface module, the detected work parameters information is sent to the controller circuit module by the tyre work parameters collection circuit module through the wireless communication receiving and sending circuit module, and the information is processed by the controller circuit module, then finally the tyre work parameters data are transmitted to the information display circuit module for displaying, and the data are sent to the automobile meter and control device through the network communication interface module. The utility model solves the problem existing in the prior direct tyre pressure detection device that the data cannot be communicated between the automobile devices and the control devices, and has the advantages of precise measurement, reliable work and information sharing with other automobile devices.
Description
Technical field
The utility model relates to a kind of automobile tyre pressure test device.
Background technology
According to the difference of application scenario, tire pneumatic pressure detector is divided into two kinds on tool-type and online detection type.The tire pneumatic pressure detector of tool-type is mainly used in industries such as auto repairs and detects whether conformance with standard requirement of inner pressure of tire.Tire pressure on-line monitoring type device is mainly used in key parameters such as real-time monitoring tire internal gas pressure and temperature to be changed, allow the driver in time understand each tyre working state, avoid crossing low or too high situation down train, prevent that sudden and violent tire from causing the generation of pernicious traffic hazard at tire pressure.By the principle of work branch, tire pressure on-Line Monitor Device TPMS (Tire Pressure Monitoring System) divides indirect type, direct-type, three kinds of citation forms of combined type.Wherein, directly TPMS requires to dispose sensors such as pressure, temperature in each tire, and wireless launcher is installed, and information such as pressure, temperature are sent out tire from inside tires.TPMS utilizes vehicle anti-lock brake system (ABS) to determine that indirectly tire pressure changes indirectly.Ultimate principle is: when tire pressure reduced, the weight of vehicle can make diameter of tyres diminish, and will cause the speed of a motor vehicle to change, and through correct calculation, this speed of a motor vehicle variation can be used for triggering warning system, sends caution to the driver.These two kinds of forms all have the advantage of oneself, and direct-type TPMS can provide more senior function, can measure the actual wink of each inside tires at any time and press, and determine easily to detect accurate, reliable operation by the fault tire.Indirect type TPMS is relatively cheap, but direct detection wheel air pressure, and accuracy rate is not so good as direct-type TPMS.In addition, in some cases, indirect type TPMS can't operate as normal, 2 situations that tire pressure is all low on for example same axletree.Combined type TPMS has the advantage of indirect type TPMS and direct-type TPMS concurrently, and combined type TPMS is a direct setting pressure sensor in the tire at two mutual one-tenth diagonal angles, and equips one 4 and take turns indirect type TPMS.Compare with whole use direct-type TPMS, combined type TPMS can reduce cost, and overcomes indirect type TPMS and can not detect a plurality of tires and occur the low excessively shortcoming of air pressure simultaneously.But it still can not provide the real time data of actual pressure in all tire.Existing direct-type tire pressure detecting device does not possess the lan interfaces function, promptly the TPMS system can not with other onboard instruments and opertaing device swap data, be difficult to realize senior control function.
The utility model content
Technical problem to be solved in the utility model provide a kind of can with the direct-type tire pressure detecting device of onboard instruments and opertaing device swap data.
The technical scheme that the utility model adopted is: tire pneumatic pressure detector, comprise tire working parameter acquisition circuit module, wireless telecommunications transmission circuit module, the controller circuitry module, the information display circuit module, the network communication interface module, signal transmitter unit in tire working parameter acquisition circuit module and the wireless telecommunications transmission circuit module constitutes circuit unit in the tire, signal receiving unit in the wireless telecommunications transmission circuit module and controller circuitry module, the information display circuit module, the network communication interface module constitutes tire external circuit assembly, tire working parameter acquisition circuit module is connected with signal transmitter unit in the wireless telecommunications transmission circuit module, the tire working supplemental characteristic that monitors is passed through its emission, signal receiving unit received signal in the wireless telecommunications transmission circuit module, the controller circuitry module is delivered in the output that produces, after the controller circuitry module is handled information, the tire working supplemental characteristic that finally obtains is outputed to the information display circuit module shows, and by the network communication interface module with data in real time export automobile instrument and opertaing device to.
Signal receiving unit in the wireless telecommunications transmission circuit module and the radio communication between the signal transmitter unit are that 434Mhz and 125kHz amplitude-modulated signal are realized by carrier frequency.
Running parameter Acquisition Circuit module is selected for use and is both comprised the PCH7970 microprocessor core, comprises the integrated circuit (IC) chip SP30 of temperature, pressure, acceleration, voltage sensor again.
The controller circuitry module is selected the PIC16FXX series microprocessor for use.
Select SPI standard serial communication interface between controller circuitry module, information display circuit module, the network communication interface module for use.
The information display circuit module is selected the HT1621 integrated circuit for use.
Adopt the CAN communications protocol between network communication interface and automobile instrument and the opertaing device, the CAN controller is selected the MCP2510 integrated circuit for use, and the CAN driver is selected the PCA82C250 integrated circuit for use.
The advantage that the utility model had is: the working condition of each tire of monitoring vehicle in real time, and with tyre working state main physical parameters---air pressure, temperature, acceleration, voltage show in pilothouse in real time, help the driver to understand the working condition of tire at any time, when tire internal gas pressure and temperature occur when unusual, in time give sound, light alarm, the prompting driver takes the necessary technology measure, avoids the generation of pernicious traffic hazards such as sudden and violent tire.In addition, parameters such as tire pressure, temperature, acceleration, voltage can send opertaing devices such as automobile central controller by network interface to, realize information sharing.Owing to employing direct-type TPMS, the running parameter Acquisition Circuit module that is located in the tire is passed through the form and the extraneous swap data of wireless transmission, so has characteristics such as measurement is accurate, reliable operation.
Description of drawings
Fig. 1 is the utility model functional-block diagram;
Fig. 2 is a circuit unit circuit diagram in the utility model tire;
Fig. 3 is the utility model tire external circuit assembly circuit figure.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, tire pneumatic pressure detector comprises tire pneumatic pressure detector, comprise tire working parameter acquisition circuit module, wireless telecommunications transmission circuit module, the controller circuitry module, the information display circuit module, the network communication interface module, signal transmitter unit in tire working parameter acquisition circuit module and the wireless telecommunications transmission circuit module constitutes circuit unit in the tire, signal receiving unit in the wireless telecommunications transmission circuit module and controller circuitry module, the information display circuit module, the network communication interface module constitutes tire external circuit assembly, tire working parameter acquisition circuit module is connected with signal transmitter unit in the wireless telecommunications transmission circuit module, the tire working supplemental characteristic that monitors is passed through its emission, signal receiving unit received signal in the wireless telecommunications transmission circuit module, the controller circuitry module is delivered in the output that produces, after the controller circuitry module is handled information, the tire working supplemental characteristic that finally obtains is outputed to the information display circuit module shows, and by the network communication interface module with data in real time send automobile instrument and opertaing device to.
The function of each module is as follows:
1) tire working parameter acquisition circuit module
Major function is to gather physical parameters such as tire internal gas pressure, temperature, vehicle acceleration, voltage by business-like integrated sensor chip, and will send into wireless telecommunications transmission circuit module after these parameters numberization.
2) wireless telecommunications transmission circuit module
Major function is to realize wireless bidirectional communication in running parameter Acquisition Circuit module and controller circuitry intermodule, send running parameter in the tire to the controller circuitry module on the one hand, the instruction that the controller circuitry module is sent sends running parameter Acquisition Circuit module on the other hand.
3) controller circuitry module
Major function is the mode of operation of control information display circuit module, network communication interface module and each running parameter Acquisition Circuit module, collects running parameter, Control Network communication and information display mode in each tire.
4) information display circuit module
Major function is to realize demonstration harmony, the light alarm prompt of tire working parameter.
5) network communication interface module
Major function is to realize on tire air pressure monitoring device and the automobile exchanges data between other electric equipment.
Wherein, the controller circuitry module is the center of tire air pressure monitoring instrument, is arranged in working environment and compares in the better pilothouse.In each tire of vehicle, comprise the running parameter Acquisition Circuit module of deploying troops on garrison duty respectively in the spare tire, therefore according to different automobile types, running parameter Acquisition Circuit module has a plurality of.The number of wireless telecommunications transmission circuit module is consistent with the quantity of running parameter Acquisition Circuit module, deploys troops on garrison duty near tire usually.Information display circuit module, network communication interface module, together are arranged in the pilothouse in same housing together with the controller circuitry module arrangement.Information display circuit module and controller circuitry module, network communication interface module and controller circuitry intermodule all are to realize being electrically connected and exchanges data by interface circuit.Each wireless telecommunications transmission circuit module and controller circuitry intermodule are realized being electrically connected and data transfer by single core shielded cable or twisted-pair feeder.Running parameter Acquisition Circuit module and corresponding wireless telecommunications transmission circuit intermodule realize that by wireless communication mode channel connects and exchanges data.Each wireless telecommunications transmission circuit module is under the coordination of controller circuitry module, and transceive data is avoided the phase mutual interference in turn, and used carrier frequency has two (434MHz, 125kHz).When wireless telecommunications transmission circuit module receives running parameter Acquisition Circuit module data, use the 434MH carrier frequency; When wireless telecommunications transmission circuit module and the move instruction of running parameter Acquisition Circuit intermodule, adopt the 125kHz carrier frequency.
Fig. 2 is the circuit theory diagrams of circuit unit in the tire.Circuit unit comprises signal transmitter unit two parts in tire working parameter acquisition circuit module and the wireless telecommunications transmission circuit module in the tire, major function is the instruction that receives controller module by the mode of wireless telecommunications, finish the collection of physical parameters such as tyre inner pressure, temperature, acceleration, voltage, after changing into digital signal, measurement data such as tire internal pressure, temperature, acceleration, voltage are sent to outside the tire by wireless transmissioning mode.
Selected integrated circuit (IC) for use in this part circuit
1, integrated circuit (IC)
2Two chips, integrated circuit (IC)
1Model be SP30, integrated circuit (IC)
2Model be TDK5100F.The battery that is arranged on circuit unit in the tire is an integrated circuit (IC)
1, integrated circuit (IC)
2Two chips provide 3V power supply, and power positive end connects integrated circuit (IC) respectively
16 pin and integrated circuit (IC)
22 pin; Power supply negative terminal connects integrated circuit (IC) respectively
17,8 pin and integrated circuit (IC)
23,8 pin.Capacitor C
31, C
32, C
34, C
33Be respectively decoupling and power supply electric capacity of voltage regulation.
Integrated circuit (IC)
1And peripheral circuit constitutes running parameter Acquisition Circuit module.Integrated circuit (IC)
1PCH7970 microprocessor (MCU) nuclear of integrated temperature, pressure, acceleration, voltage sensor and Philips company.In systems development process, developing instrument connects the PCH7970 microprocessor by socket J1, and user program is write in the PCH7970 microprocessor, also can use developing instrument that the working procedure of PCH7970 microprocessor is debugged.Socket J1 has five lock pins, and lock pin 1 connects the 3V power supply, for circuit unit in the tire provides power supply in debug process; Lock pin 2 connects IC
12 pin, lock pin 3 connects power supply ground, lock pin 4 connection IC
14 pin, lock pin 2 connects IC
15 pin.Coil L
3With capacitor C
30Constitute series resonant network, two ends are connected respectively to and meet IC
112,13 pin, select the 125kHz carrier wave for use, receive the instruction that controller module sends by wireless communication mode.
Integrated circuit (IC)
2And peripheral circuit is formed the signal transmitter unit.IC
19,11 pin connect IC respectively
26,7 pin, IC
1After measuring the interior temperature of tire, pressure, acceleration, voltage parameter, be transferred to IC by these two lines
2Chip.Capacitor C T
1, CT
2After the parallel connection, with capacitor C T
1, crystal QT
1(13.56MHz) series connection constitutes series resonant tank, is IC
2Chip provides basic clock signal.Crystal QT
1One section connect IC
25 pin, an end connects capacitor C T
1, CT
2Shunt circuit one end, capacitor C T
1, CT
2The shunt circuit other end connects IC
24 pin and capacitor C T
2One end, capacitor C T
2Other end ground connection.Basic clock signal is through IC
2After chip internal frequency division and the phase lock circuitry control, form the carrier signal of 434MHz.IC
1Chip sends IC to
2Measurement data such as the pressure of chip, temperature are at IC
2With the modulation of 434MHz carrier signal, form amplitude-modulated signal in the chip also through IC
29 pin by tours antenna LT
3Launch.Inductance L T
1, LT
2, capacitor C T
6, CT
7, CT
9With tours antenna LT
3Formed antenna matching network jointly, the main effect of antenna matching network is to constitute frequency selection network, and promptly bandpass filter makes the 434MHz signal can obtain emission maximum efficient, and the signal of other frequency content is restrained, and is difficult to by tours antenna LT
3Launch.LT
1, tours antenna LT
3, LT
2After the series connection, an end and IC
29 connect another termination 3V power supply.CT
6One terminates at 3V and LT
1Tie point on, an end is connected with ground; CT
7One terminates at LT
1With tours antenna LT
3Series connection point on, an end is connected with ground; CT
9One terminates at LT
2With IC
29 pin common points on, an end is connected with ground.
Fig. 3 is the circuit theory diagrams of tire external circuit assembly.Tire external circuit assembly comprises signal receiving unit in the wireless telecommunications transmission circuit module and controller circuitry module, information display circuit module, network communication interface module several sections.Wherein, controller is responsible for the LAN (Local Area Network) communication, information shows and the control and the scheduling of running parameter Acquisition Circuit module.The information demonstration comprises LCDs and display interface circuit two parts, and LCDs is an information display window; Display interface circuit drives LCDs on the one hand, realizes electrical isolation and signal transmission between controller and LCDs on the other hand.Network communication interface comprises network communication control and drives the two large divisions that the major function of network communication control is that network and controller interface, communications protocol are controlled; Driving is that the intensity of network communication controller output signal is amplified, so that upload defeated at the LAN (Local Area Network) circuit.Select SPI standard serial communication interface between controller circuitry module, information display circuit module, the network communication interface module for use.
This part circuit has been selected integrated circuit (IC) for use in order to realize that running parameter is measured control, demonstration and LAN (Local Area Network) information transfer capability in the tire
3, integrated circuit (IC)
4, integrated circuit (IC)
5, integrated circuit (IC)
6, integrated circuit (IC)
7Five chips.Integrated circuit (IC)
3Model be TDA5210, integrated circuit (IC)
4Model be PIC16F73, integrated circuit (IC)
5Model be MCP2510, integrated circuit (IC)
6Model be PCA82C250, integrated circuit (IC)
7Model be HT1621.The 5V direct current is added in IC
314,2,7 pin, IC
420 pin; The ground of 5V is added in IC
35,10,13 pin, IC
48,19 pin, IC
59 pin, IC
622 pin, IC
713 pin, be IC
4, IC
5, IC
6, IC
7Working power is provided.Wherein, capacitor C
10, C
4, C
22, C
23, C
45, C
46Be respectively power supply voltage stabilizing and decoupling capacitor, be connected in parallel on the 5V both ends of power, be arranged near the corresponding integrated circuit power pins.IC
427 pin be directly connected to 5V, show IC
4Be arranged on the Data Receiving duty.
Integrated circuit (IC)
3And peripheral circuit is formed signal receiving unit.Capacitor C
1, C
2, C
3And inductance L
1Form amplitude-modulated signal and receive matching network, receiving antenna is sent amplitude-modulated signal to the reception matching network by the J2 socket.Therefore the selection frequency setting of matching network, has only and tours antenna LT at 434MHz
3The signal that transmission frequency is identical just can be received matching network and receive well, and other frequency content signal of responding on the receiving antenna is received matching network filtering fully.Capacitor C
1, C
3After the series connection, a termination IC
33 pin, an end is connected with socket J1; Capacitor C
2With inductance L
1After the parallel connection, an end is connected capacitor C
1, C
3The common point of series connection, other end ground connection.The 434MHz amplitude-modulated signal is through IC
3After inner low noise amplifier amplifies, by IC
36 pin output, through capacitor C
6, C
7, C
8And inductance L
2Behind the matching network of forming, through IC
38 pin deliver to an input end of its inner double balanced mixer.Inductance L
2One end connects 5V, the other end and IC
36 pin connect; Capacitor C
2Be connected in parallel on the 5V both ends of power, capacitor C
6With L
2In parallel; Capacitor C
8Be connected across IC
36,8 pin between, play the signal coupling.IC
39 pin are another input ends of its inner double balanced mixer, IC
39 pin can be through capacitor C
9Be connected to ground.The double balanced mixer signal is by IC
312 pin output, through three end ceramic filter Q
3After the filtering, obtain the 10.7MHz intermediate-freuqncy signal, through IC
317 pin send into an input end of its inner limiting amplifier, another input end of limiting amplifier is IC
319 pin.Three end ceramic filter Q
3Intermediate ends ground connection, two ends connect the input and output of filtering signal respectively in addition.IC
319 pin can be through C
11Direct ground connection.IC
3The unsettled carrier frequency of reception of amplitude-modulated signals that shows of 11 pin be set in 434MHz; IC
3The direct ground connection of 14 pin, IC is described
3Be operated in the amplitude modulation pattern; IC
316 pin ground connection, meaning crystal Q
1Frequency of operation be selected in 13.4MHz.Capacitor C
16, C
15With crystal Q
1Form the series resonance network, be IC
3Standard clock signal is provided.Capacitor C
16One termination IC
328 pin, the other end and Q
1Series connection; Capacitor C
15One termination IC
31 pin, the other end and Q
1 Series connection.IC
324 pin output 3V canonical reference voltage, through R
4And R
5After the dividing potential drop, obtain a reference voltage and be input to IC
323 pin, be IC
3Inner automatic gain control circuit provides voltage reference.Capacitor C
17And at R
4And R
5The series loop two ends strobe.10.7MHz intermediate-freuqncy signal is at IC
3Inner after amplification, amplitude limiting processing, by its 19 pin output.Capacitor C
12, capacitor C
13Constitute second order Sallen-Key wave filter, IC
319 pin and 22 pin through C
14Directly link to each other IC
321 foot meridian capacitor C
12 Ground connection.IC
319 pin output signals through resistance R
1And capacitor C
13Dividing potential drop is added to its 20 pin, as IC
3An input signal of internal comparator, the realization amplitude-modulated signal is separated the mediation data separating.Resistance R
1Meet IC
319 pin, the other end and capacitor C
13Series connection back ground connection.IC
326 pin provide signal peak to survey output, through capacitor C
18, resistance R
2And R
3Behind the network of forming, export by socket J3.The J3 output signal can be added to second order Sallen-Key filter network by a definite form and realize precharge, reaches the purpose that signal demodulation, data separating and circuit start fast.Capacitor C
18Cross-over connection IC
326 pin and ground between, IC
326 pin output signals through resistance R
2And R
3After the dividing potential drop, export by socket J3.Obtain tyre inner pressure and temperature digital signal after the amplitude-modulated signal demodulation, through IC
325 pin output, pass through resistance R
6Directly deliver to IC
421 and 22 pin.
Integrated circuit (IC)
4It is the microprocessor of controller module.Capacitor C
20, C
21, crystal Q
2And IC
4Inner relevant circuit forms Colpitts oscillation circuit, is IC
44MHz is provided reference clock.IC
41 pin through resistance R
10Directly link 5V, constitute IC
4Reset circuit.In addition, with IC
4Relevant interface circuit has information display circuit module and network communication interface module.
IC
5Be the CAN controller, model is MCP2510; IC
6Be the CAN driver, model is PCA82C250.Little processing IC
4With the CAN driver IC
6Data transfer adopt SCI serial line interface form, 5 bars connecting line, i.e. IC are arranged between the two
414,15,16,25,26 pin and IC
513,15,14,16,17 pin directly link to each other.These 5 electrical cables realize that single-chip microcomputer PIC16C73 is to the CAN controller IC
5Control, and realize data serial communication between the two.Capacitor C
41, capacitor C
42With crystal oscillator Q
4Form the CAN controller IC
5Clock circuit, annexation is a capacitor C
41, capacitor C
42Series connection is again with crystal oscillator Q
4After the parallel connection, be connected respectively to IC
5Master clock signal input end 7 and 8, capacitor C
41, capacitor C
42The intermediate point of series connection is connected to power supply ground.
The CAN controller IC
5With the CAN driver IC
6Connect through two lines, i.e. data receiver interconnection between the two, the data sending terminal interconnection is specially IC
52,1 pin and IC
64,1 link to each other respectively.Data are through the CAN driver IC
6After intensity is amplified, deliver on the local area network bus through 7 bipods 6,, promptly on vehicle local net CAN communication cable A and the B.
Integrated circuit (IC)
7Be the LCD interface chip, realize isolating between the microprocessor of controller module and liquid crystal display and liquid crystal display being driven and controls, IC
7Model select HT1621 for use.IC
4With IC
7Between connect, realize IC by sheet choosing, data, 3 lines of clock
428,23,24 pin respectively with IC
79,12,3 pin directly link to each other.Capacitor C
43, C
44, crystal Q
5And IC
7Inner relevant circuit forms Colpitts oscillation circuit, is IC
7Provide reference clock, Q
5Frequency of operation be 32.768kHz.Capacitor C
43, C
44Series connection back and crystal Q
5Parallel connection, back in parallel two-end-point respectively with IC
714,16 pin link to each other capacitor C
43, C
44Intermediate point ground connection behind the polyphone.IC
7By its common port COM0 ∽ COM3, section route selection SEG0 ∽ SEG33 is connected with LCDs, liquid crystal display is shown that symbol drives, the control displaying contents.The corresponding IC of common port COM0 ∽ COM3
721 ∽, 24 pin, the corresponding IC of section route selection SEG0 ∽ SEG33
71 ∽, 8 pin, 25 ∽, 48 pin.LCDs generally customizes, and common port COM0 ∽ COM3, section route selection SEG0 ∽ SEG33 are connected situation and depend on the inner display pattern layout of liquid crystal display with LCDs.
Claims (7)
1. tire pneumatic pressure detector, comprise tire working parameter acquisition circuit module, wireless telecommunications transmission circuit module, the controller circuitry module, the information display circuit module, the network communication interface module, it is characterized in that: the signal transmitter unit in tire working parameter acquisition circuit module and the wireless telecommunications transmission circuit module constitutes circuit unit in the tire, signal receiving unit in the wireless telecommunications transmission circuit module and controller circuitry module, the information display circuit module, the network communication interface module constitutes tire external circuit assembly, tire working parameter acquisition circuit module is connected with signal transmitter unit in the wireless telecommunications transmission circuit module, the tire working supplemental characteristic that monitors is passed through its emission, signal receiving unit received signal in the wireless telecommunications transmission circuit module, the controller circuitry module is delivered in the output that produces, the tire working supplemental characteristic that the controller circuitry module will finally obtain outputs to the information display circuit module, and exports automobile instrument and opertaing device to by the network communication interface module.
2. tire pneumatic pressure detector as claimed in claim 1 is characterized in that: signal receiving unit in the wireless telecommunications transmission circuit module and the radio communication between the signal transmitter unit are that 434Mhz and 125kHz amplitude-modulated signal are realized by carrier frequency.
3. tire pneumatic pressure detector as claimed in claim 1 is characterized in that: running parameter Acquisition Circuit module is selected for use and is both comprised the PCH7970 microprocessor core, comprises the integrated circuit (IC) chip SP30 of temperature, pressure, acceleration, voltage sensor again.
4. tire pneumatic pressure detector as claimed in claim 1 is characterized in that: the controller circuitry module is selected the PIC16FXX series microprocessor for use.
5. tire pneumatic pressure detector as claimed in claim 1 is characterized in that: select SPI standard serial communication interface between controller circuitry module, information display circuit module, the network communication interface module for use.
6. tire pneumatic pressure detector as claimed in claim 1 is characterized in that: the information display circuit module is selected the HT1621 integrated circuit for use.
7. tire pneumatic pressure detector as claimed in claim 1, it is characterized in that: adopt the CAN communications protocol between network communication interface and automobile instrument and the opertaing device, the CAN controller is selected the MCP2510 integrated circuit for use, and the CAN driver is selected the PCA82C250 integrated circuit for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200384007U CN201051031Y (en) | 2007-06-18 | 2007-06-18 | Tyre air pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200384007U CN201051031Y (en) | 2007-06-18 | 2007-06-18 | Tyre air pressure detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201051031Y true CN201051031Y (en) | 2008-04-23 |
Family
ID=39337521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200384007U Expired - Fee Related CN201051031Y (en) | 2007-06-18 | 2007-06-18 | Tyre air pressure detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201051031Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947905A (en) * | 2010-08-09 | 2011-01-19 | 哈尔滨工程大学 | Positioning transmit device and method of automobile tire temperature and pressure monitoring system |
| CN102162761A (en) * | 2010-02-18 | 2011-08-24 | 通用汽车有限责任公司 | In-vehicle tire gauge system and methods |
| CN103257016A (en) * | 2013-05-22 | 2013-08-21 | 上海理工大学 | Portable positive and negative air pressure wireless remote measuring device |
| CN103698079A (en) * | 2013-12-23 | 2014-04-02 | 哈尔滨理工大学 | Condition monitoring device for automobile air filter with low power consumption and small size |
| CN104931186A (en) * | 2015-06-17 | 2015-09-23 | 上海工程技术大学 | Vehicle dynamic braking force measuring device |
| CN105946474A (en) * | 2016-06-05 | 2016-09-21 | 陈华祥 | Novel tyre pressure monitoring structure |
-
2007
- 2007-06-18 CN CNU2007200384007U patent/CN201051031Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162761A (en) * | 2010-02-18 | 2011-08-24 | 通用汽车有限责任公司 | In-vehicle tire gauge system and methods |
| CN102162761B (en) * | 2010-02-18 | 2016-05-11 | 通用汽车有限责任公司 | Vehicle-mounted tire pressure metering system and method |
| CN101947905A (en) * | 2010-08-09 | 2011-01-19 | 哈尔滨工程大学 | Positioning transmit device and method of automobile tire temperature and pressure monitoring system |
| CN101947905B (en) * | 2010-08-09 | 2012-09-05 | 哈尔滨工程大学 | Positioning transmit device and method of automobile tire temperature and pressure monitoring system |
| CN103257016A (en) * | 2013-05-22 | 2013-08-21 | 上海理工大学 | Portable positive and negative air pressure wireless remote measuring device |
| CN103257016B (en) * | 2013-05-22 | 2015-05-20 | 上海理工大学 | Portable positive and negative air pressure wireless remote measuring device |
| CN103698079A (en) * | 2013-12-23 | 2014-04-02 | 哈尔滨理工大学 | Condition monitoring device for automobile air filter with low power consumption and small size |
| CN104931186A (en) * | 2015-06-17 | 2015-09-23 | 上海工程技术大学 | Vehicle dynamic braking force measuring device |
| CN105946474A (en) * | 2016-06-05 | 2016-09-21 | 陈华祥 | Novel tyre pressure monitoring structure |
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