CN2681109Y - Induction type tire fault alarm device for automobile - Google Patents
Induction type tire fault alarm device for automobile Download PDFInfo
- Publication number
- CN2681109Y CN2681109Y CN 200420015066 CN200420015066U CN2681109Y CN 2681109 Y CN2681109 Y CN 2681109Y CN 200420015066 CN200420015066 CN 200420015066 CN 200420015066 U CN200420015066 U CN 200420015066U CN 2681109 Y CN2681109 Y CN 2681109Y
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- induction type
- card
- card reader
- tire
- chip
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- Emergency Alarm Devices (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to an induction type tire fault alarm device for an automobile. A card reader for an IC card is provided closely to a tire of an automobile body; an induction type responder comprising an induction aerial, an induction type IC chip, a pressure switch and a temperature switch is provided closely to the tire or a gas nozzle; the induction type card reader for the IC card is connected with a connecting line which is connected with an alarm processing element arranged in an automobile head; input power-supply lines of the card reader and the alarm processing element are connected with a storage battery of the automobile; the card reader can transmits the signal of the fault of the automobile tire to an instrument of the automobile head accurately. The induction type tire fault alarm device for the automobile has simple structure, easy maintenance, low cost and favorable alarm performance.
Description
Technical field
The utility model relates to a kind of device of doughnut fault alarm.
Background technology
Tire is the vitals of automobile running system, and tire is in case leak gas extremely danger, the lighter's damaged tyres, weight person's car crash.
In order to prevent and avoid bulging of tyre gas leakage, people study and have designed some tire air-leaking alarming devices in recent years, as document 1, " air pressure of automobile tire electronic Real-time Monitoring System ", Korea Spro builds and protects Chen Libing, Beijing Institute of Technology, " automotive engineering " 2002, (7),＜digest〉be example with the product of North America market and German BERU company, introduced the technology of tire pressure electronic Real-time Monitoring System and the recent development trend of aspect, market.The characteristics of this real-time monitoring system are: pressure transducer is mutually integrated with the valve valve, pressure signal transmits with high frequency radio wave, receiving antenna further is transferred to central processing unit with signal and handles, the tire pressure value of measuring and with the deviation of its standard value, finally be presented on the display of central control board, instrument panel or multi-functional steering wheel.When deviation surpassed limit value, in time alerting driver reminded it to take measures necessary.2, Chinese patent,＜application number〉02232524,＜denomination of invention〉tyre leakage autoalarm＜digest〉a kind of tyre leakage autoalarm, comprise signal source circuit and warning circuit, wherein signal source circuit comprises electromagnetic induction path and baroswitch again.Baroswitch is connected on the cranked tire valve, wherein air chamber closed glue pad and switch contact gland are connected as a single entity, air chamber closed glue pad sealing tire air chamber connects spring behind the switch contact gland, when tire pressure during greater than spring pressure, circuit disconnects, work as under-inflation, during less than spring pressure, circuit is connected, utilize electromagnetic induction that signal is passed to warning circuit through the electromagnetic induction path, send alerting signal.This utility model can be carried out real-time gas leakage to the doughnut in travelling and be detected, and testing result is accurate, can not report by mistake because of pavement behavior is bad, and is simple in structure, easy to use, is fit to various types of vehicles and uses.3, Chinese patent＜application number〉02208896,＜denomination of invention〉car tire leakage gas and broken tire warning device＜digest〉a kind of car tire leakage gas and broken tire warning device, be with the arrangement for detecting of ultrasonic inductor for a kind of in conjunction with microprocessor and array emergency warning lamp group, utilize the ultrasonic inductor to detect and respectively organize tire and ground conflict variation highly, and then the tire pressure varies of monitoring tyres, and can calculate the detecting state of comparing out with microprocessor, point out with the shinny generation identification of cresset of respectively organizing that makes hummer send caution sound and warning lamp group, reaching the alarm device that to safeguard the tire traffic safety, also can allow wheel be full of simultaneously to avoid being subjected to again once to damage and destroy whole safeguard construction.4, Chinese patent＜application number〉94104383,＜denomination of invention〉leakage warning device for ultra-thin tyres＜digest〉a kind of tire air-leaking alarming device, constitute by pressure detector and language alarm.Pressure detector utilizes inner tube of a tyre rubber to be media, tire pressure is delivered on the button of detector; Pushbutton switch is connected in the transmitter supply loop.During use, detector is placed between the lining band and the inner tube of a tyre of inside tires, and button is close to the inner tube of a tyre.During warning, detector sends pulse modulated high frequency radio wave.Language alarm is by antenna, receive infrabar radio frequency alerting signal after, through amplifying and identification, trigger sound light alarming circuit.
From above-mentioned open source literature and patent, recognize, most of people load onto pressure detection and wireless launcher on the valve of tire, need be with battery, make the weight of device bigger, wheel needs counterweigh again, and battery very easily damages under the high temperature in summer, and practical value is little, therefore be not widely used, so really be applied to the few of vehicle tire leakage alarm at present.
Summary of the invention
In order to overcome the deficiencies in the prior art part, I am through many explorations and research, particularly to the research of various induction type IC cards, developed on the instrument that a kind of energy is delivered to the signal of tyre leakage and overtemperature headstock exactly simple and reliablely and reported to the police, be a kind of simple in structure, cost is low, reliability is high, the method for long-life vehicle tire leakage alarm and device.
The technical solution of the utility model is achieved in that
Vehicle tire leakage alarm device of the present utility model comprises the sensor that is installed in wheel and is installed in the warning processing unit of headstock, be characterized in settling the induction type IC card card reader near the place of tire at body of a motor car, and in suitable place of wheel such as tire or adorn one on the valve by induction type IC card IC chip, induction antenna, pressure switch, the transponder that temperature switch is formed, the induction type IC card card reader is connected to line, with be installed in headstock in the warning processing unit that constitutes by MCU (single-chip microcomputer or microprocessor) be connected, card reader and warning processing unit input power cord be connected with automobile storage battery.The radiowave of IC-card card reader emission certain frequency is given the transponder in the tire during work, and the induction antenna of transponder is connected through the pressure and temperature switch with the IC chip, tire just often, switch disconnects, the IC chip can not receive signal from induction antenna, the IC chip can not be worked, the IC card reader does not just receive any information, when tire pressure less than or temperature during greater than a setting value, the receiving antenna of switch connection IC-card is connected with the IC chip, so the IC card reader just can be received the information of IC-card, after the warning processing unit processes of this information through being attached thereto, send alerting signal, can divide into alerting signal: tire just often, return a normal information, just do not illustrate that as this signal IC-card has damaged; Pressure is low in this way, and with regard to the low information of returning pressure, the high information of temperature is returned in the temperature higher position in this way, and is high again as the pressure low temperature, then sends out emergence message another kind of.
Above-described induction type IC card is a non-contact IC card, claims radio-frequency card [Radio Frcqucncy Card] again, and the hardware configuration of non-contact IC card is made up of an induction antenna and special chip two parts.Induction antenna is the coil that has only several groups of coilings, how to make with technologies such as tinsel stickup or embedding, burn into printings.Induction type IC card is world's development in recent years new technology comparatively rapidly, and it successfully combines REID and IC-card recognition technology.(CPU card and antenna are packaged among the plastic substrate will to have microprocessor.IC-card read-write is reliable, read-write equipment simply, not fragile, long service life, be easy to plurality of advantages such as maintenance and management.
Above-described warning processing unit comprises by power supply, single-chip microcomputer, hummer, pilot lamp to be formed, and the line of induction type IC card card reader output connects single-chip microcomputer, and the single-chip microcomputer output signal line connects hummer and pilot lamp.
Above-described pressure switch is selected diaphragm type pressure switch or other air pressure switch for use.
Above-described temperature switch can be made with bimetallic strip.
Above-described special chip then is made up of radio frequency interface, access control and three modules of EEPROM.The radio frequency interface part also therefrom produces power supply and work clock with the resonant circuit received signal of itself.
Above-described transponder is installed in tire or the valve, also can be made of one with air tube or nave boss.
Single-chip microcomputer in the above-described warning processing unit that is installed in headstock or microprocessor are selected PIC16 series or 51 series for use.
Above-described induction type IC card card reader is made up of Card Reader chip and antenna.
Above-described Card Reader chip and circuit also can be integrated with the warning processing unit, antenna be placed in separately wheel near, with signal wire antenna and Card Reader chip are coupled together.
Our being seen IC-card is mainly used in public transport monthly ticket, enterprise working attendance checking system at present, and report is arranged recently, and IC-card has obtained application in banking management system, expressway tol lcollection service management, enterprise staff aspect such as have a dinner.Realized flexible, with no paper charge, background manage software is powerful, can put in order raw data, analyze, and inquiry, and can be printed as various forms, data are accurate in detail.But also there is not the open source literature report that contactless IC card is applied in the vehicle tire leakage alarm aspect at present, so, contactless IC card is used for as vehicle tire leakage alarm, and performance has the wireless transmit of being better than sensor, electromagnetic inductor, ultrasonic inductor etc. certainly.
The utility model is compared with the device of existing vehicle tire leakage alarm, has the following advantages:
1, the contactless IC card chip is enclosed in the card, and area is little, so do not worry that sensor comes off, electrostatic breakdown, curved decrease etc., has improved the reliability of system.After tire pressure was low, because tire and ground friction increase, diaphragm type pressure switch and temperature switch can be worked simultaneously, have guaranteed the accuracy of sensor signal.
----periphery circuit design is simple.
---antijamming capability is strong.Make vehicle tire leakage alarm stable work in work of the present utility model.
3, simple in structure, easy to maintenance, production cost is low;
Description of drawings
Fig. 1 is the IC-card card reader of the utility model doughnut accident warning device and the installation site figure of transponder.
Fig. 2 is a card reader and be installed in the schematic circuit that headstock warning processing unit is connected.
Fig. 3 is this vehicle tire leakage alarm device transponder schematic circuit.
Embodiment
As shown in Figure 1, automobile chassis 2 is settled IC-card card reader 1 near the place of tire 4, and adorns a transponder 3 in tire 4 or valve 5 or nave boss 6, transponder circuit such as Fig. 3 (a), in pressure switch 10, temperature switch 11 are arranged, induction type IC chip 12, induction antenna 13; The IC-card card reader is connected to line 9, is connected with the warning processing unit as Fig. 2 that is installed in headstock.The warning processing unit mainly is made up of single-chip microcomputer 8, hummer 7, pilot lamp (LED1, LED2) etc.Just often, the radiowave of IC-card card reader 1 emission certain frequency is given the transponder in the wheel, if tire is normal, transponder is because of pressure or not connection of temperature switch, the IC chip is not worked, the IC-card card reader just can not receive any information, too small or temperature is too high when the pressure of tire, then pressure switch or temperature switch are connected, and the signal of the induction antenna 13 of transponder will be sent in the IC chip, the IC chip operation, and give IC-card card reader 1 with IC information return message, so card reader 1 just can be received the information of transponder, after the warning processing unit processes of this information through being attached thereto, send alerting signal or pilot lamp, remind the driver to note.
Fig. 3 (b) is an improved circuit, on customization special-purpose radio-frequency IC chip 14, increase by two controls pins and four kinds of different information codes, one of them pin is connected with pressure switch, another pin is connected with temperature switch, and induction antenna directly is connected with the IC chip, make sensor circuit in running order, the IC-card card reader can be received 4 kinds of information that transponder sends like this: (1) is normal, (2) air pressure is low, (3) temperature height, (4) air pressure is low and temperature is high, and when being back three kinds of information, the warning processing unit sends alerting signal.
Claims (7)
1, a kind of induction type automobile tire fault warning device, comprise sensor that is installed in wheel and the warning processing unit that is installed in headstock, it is characterized in that: settle the induction type IC card card reader in the place that body of a motor car is close, on wheel, adorn an induction type transponder of forming by induction type IC card IC chip, induction antenna, pressure switch, temperature switch, the induction type IC card card reader is connected to line, be connected with the warning processing unit that is installed in pilothouse, the input power cord of induction type IC card reader and warning processing unit is connected with automobile storage battery.
2, above-described induction type automobile tire fault warning device according to claim 1, it is characterized in that: the warning processing unit comprises by single-chip microcomputer (8), hummer (7), pilot lamp and forming, the line of induction type IC card card reader output connects single-chip microcomputer, and the single-chip microcomputer output signal line connects hummer (7) and pilot lamp.
3, above-described induction type automobile tire fault warning device according to claim 1, it is characterized in that: described pressure switch is selected diaphragm type pressure switch or other air pressure switch for use.
4, above-described induction type automobile tire fault warning device according to claim 1, it is characterized in that: above-described temperature switch selects for use bimetallic strip to make.
6, above-described induction type automobile tire fault warning device according to claim 1, it is characterized in that: the induction type IC card that is installed on the wheel is embedded on the nave boss, perhaps is made of one with air tube or valve.
7, above-described induction type automobile tire fault warning device according to claim 1, it is characterized in that: the induction type IC card card reader is made up of Card Reader chip and antenna.
8, above-described induction type automobile tire fault warning device according to claim 1, it is characterized in that: Card Reader chip and circuit and warning processing unit are integrated, antenna be placed in separately wheel near, with signal wire antenna and Card Reader chip are coupled together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015066 CN2681109Y (en) | 2004-01-20 | 2004-01-20 | Induction type tire fault alarm device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015066 CN2681109Y (en) | 2004-01-20 | 2004-01-20 | Induction type tire fault alarm device for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2681109Y true CN2681109Y (en) | 2005-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015066 Expired - Fee Related CN2681109Y (en) | 2004-01-20 | 2004-01-20 | Induction type tire fault alarm device for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2681109Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691119A (en) * | 2016-01-14 | 2016-06-22 | 湖北文理学院 | Tire pressure detection device based on radio frequency IC card technique |
| CN105691118A (en) * | 2016-01-14 | 2016-06-22 | 湖北文理学院 | Pressure-sensitive type magnetic-coupling tire pressure detection device |
-
2004
- 2004-01-20 CN CN 200420015066 patent/CN2681109Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691119A (en) * | 2016-01-14 | 2016-06-22 | 湖北文理学院 | Tire pressure detection device based on radio frequency IC card technique |
| CN105691118A (en) * | 2016-01-14 | 2016-06-22 | 湖北文理学院 | Pressure-sensitive type magnetic-coupling tire pressure detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |