CN2472998Y

CN2472998Y - Electronic speech alarm for tyre leaking

Info

Publication number: CN2472998Y
Application number: CN 00257297
Authority: CN
Inventors: 何继星; 张秀生
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-13
Filing date: 2000-10-13
Publication date: 2002-01-23
Anticipated expiration: 2010-10-13

Abstract

The utility model discloses a tyre gas leaking alarm, in particular to a tyre gas leaking alarm with electronic lingual and tyre position lamp light display. The tyre gas leaking alarm consists of a transmitting circuit controlled by sensor arranged on the tire, and also a receiving circuit which has language and lamp light display and is arranged in a driving cabin. Wherein, the transmitting circuit consists of a switch circuit controlled by the sensor, an encoding circuit and a transmitting circuit. The receiving circuit consists of a magnifying circuit, a frequency conversing circuit, a shaping circuit, a decoding circuit, an ultra low frequency circuit and an audio magnifying circuit as well as a voltage comparing circuit, all of which are arranged in the driving cabin. The alarm timely directly informs the driver of the position of a pressure reduced tyre so as to prevent accidents from happening.

Description

Electronic type tire deflation language alarm

The utility model is a kind of tire deflation annunciator, refers to that especially a kind of electronic type has the tire deflation annunciator of language and the demonstration of position of foetus light.

At present, tire is special to be decreased always is one of pain in the neck feelings of driver, the driver travels and needs at set intervals the parking checking tire in the way and waste time, and has influenced the operation timeliness, when more seriously automobile travels on the expressway, vehicle tyre is blown out, cause vehicle rollover, so that cause major traffic accidents, the under-voltage distortion of vehicle tyre to cause that excessively heating blows out and can cause major traffic accidents, cause car crash, influence social stability.

The purpose of this utility model is to propose a kind of electronic type tire deflation language alarm, and whether can understand each tire of automobile at any time during the driver drives a car in driving compartment and travels on the way under-voltage, so that in time handle, generation avoids traffic accident.

The purpose of this utility model can reach by following measure:

A kind of electronic type tire deflation language alarm is made of pressure sensor, transmission circuit and acceptor circuit;

Pressure sensor is made of hold-doun nut, air pressure guide rod, sensitive switch; Hold-doun nut is a cylindrical shape, and interior round left end is provided with screw thread, and its internal diameter is greater than the termination of air pressure guide rod left end, the right-hand member riveting of this hold-doun nut on air pressure guide rod left end head, both sliding fits; Air pressure guide rod cylindrical divides thickness two parts, the thick part of left end by riveting in nut, the part that right-hand member is thin is provided with screw thread, the central part of air pressure guide rod separates breather hole, place, left end aperture is provided with a key across the breather hole central segment, the both sides of key are provided with breather hole, and circle has rubber grommet in the left end of air pressure guide rod, and circle is provided with screw thread in the air pressure guide rod right-hand member; Sensitive switch is circular, and circle is provided with screw thread in the left end, and the right-hand member endoporus is square.

The concrete connection of transmission circuit is as follows: switch two contacts of sensors A are respectively by inductance L 4, L5, be connected to the base stage of the aerotron BG2 of switch circuit respectively, emitting stage, switch two contacts of sensor B are respectively by inductance L 6, L5, be connected to the base stage of the aerotron BG3 of switch circuit respectively, emitting stage, the emitting stage ground connection of the aerotron of its switch circuit, the ground level of the aerotron of its switch circuit is by resistance R 3, the positive pole of R4 power connection E, the negative earth of power supply E, the two poles of the earth of its power supply E also connect capacitor C 10, C9, the transistor collector of its switch circuit connects 14 legs of coding IC VD5026,15 of its coding IC VD5026,16 legs and connecting resistance R2, the positive pole of the 18 leg power connection E of its coding IC VD5026, the positive pole of its power supply E is by capacitor C 1, the collecting electrode of the aerotron BG1 on inductance L 1 circuit parallel sending and receiving radio road, 17 legs of its coding IC VD5026 are by the base stage of the aerotron BG1 on resistance R 1 sending and receiving radio road, the collecting electrode of the aerotron BG1 of its transmission circuit, base stage crystal oscillator LB in parallel, the grounded emitter of the aerotron BG1 of its transmission circuit, the base stage of the aerotron BG1 of its transmission circuit is by capacitor C 2 ground connection, the collecting electrode of the aerotron BG1 of its transmission circuit is by series connected capacitor C 4, C5, inductance L 3, capacitor C 8 connects the sensor conductor as emitting antenna, the collecting electrode of the aerotron BG1 of its transmission circuit is by capacitor C 3 ground connection, its capacitor C 4, C5 bonded assembly mid point is by inductance L 2 ground connection, its capacitor C 5, inductance L 3 bonded assembly mid points are by capacitor C 6 ground connection, its inductance L 3, capacitor C 8 bonded assembly mid points are by capacitor C 7 ground connection, 2 of its coding IC VD5026,3,4,5,6,7, the anode of 8 difference ground connection or power supply E, 14 legs of its coding IC VD5026 are by capacitor C 11 ground connection;

The concrete connection of acceptor circuit is as follows:

Receiving wire ANT is by inductance L 1 ground connection, its receiving wire ANT, inductance L 1 bonded assembly mid point are by forward, backward diode D1, D2 ground connection, connect the input end of IC 1U 9 by capacitor C 1, the ground terminal ground connection of its IC 1U9, the mouth of its IC 1U9 connects 12 legs of IC 2 through C3, the power end of its IC 1U9 is by C2 ground connection, and 4 legs that connect K switch and IC 3 by resistance R 1;

9 legs of its IC 2 CXA1191 are by inductance L 2, capacitor C 5 circuiies parallel and capacitor C 4 ground connection, inductance L 2, capacitor C 5 circuiies parallel and capacitor C 4 bonded assembly mid points connect 8 legs of IC 2 CXA1191,7 of its IC 2 CXA1191, shunt inductance L3 between 8 legs, 6 of its IC 2 CXA1191, parallel capacitance C7 between 7 legs, 7 legs of its IC 2CXA1191 connect the collecting electrode of aerotron BG1,8 legs of its IC 2 CXA1191 are by capacitor C 6 ground connection, connect the base stage of aerotron BG1 by resistance R 2, connect 1 leg of IC 2 CXA1191 by resistance R 3,1 leg of its IC 2 CXA1191 is by capacitor C 10 ground connection, the base stage of its aerotron BG1, current collection level crystal oscillator LB in parallel, and base stage, emitting stage parallel capacitance C11, the 4 leg ground connection of its IC 2 CXA1191,3 of its IC 2CXA1191, parallel capacitance C8 between 4 legs, 2 legs of its IC 2 CXA1191 are by series capacity C9, resonance circuit T ground connection, the 13 leg ground connection of its IC 2 CXA1191,14 legs of its IC 2 CXA1191 pass through capacitor C 12 ground connection by resistance R 4 ground connection and 15 legs, 17 legs of its IC 2 CXA1191 are by series connected capacitor C 14, inductance L 4 ground connection, series connected capacitor C 14, inductance L 4 mid points connect 14 legs of IC 2 CXA1191 by capacitor C 13, the 20 leg ground connection of its IC 2 CXA1191,21 legs of its IC 2 CXA1191 are by capacitor C 15 ground connection, 22 legs of its IC 2 CXA1191 are by capacitor C 16 ground connection, 23 legs of its IC 2 CXA1191 are by capacitor C 17 ground connection, and by series connected resistance R 5, capacitor C 23, resistance R 13 connects 3 legs of IC 3 LM324,24 legs of its IC 2 CXA1191 are by the C22 of capacitances in series,

resistance

25,26 ground connection, 25 legs of its IC 2 CXA1191 are by series connected capacitor C 18, C19 connects 26 legs, capacitor C 18, the neutral earthing of C19,26 legs of its IC 2 CXA1191 connect 4 legs of IC 3324,27 of its IC 2 CXA1191, parallel capacitance C21 between 28 legs, the 28 leg ground connection of its IC 2 CXA1191,27 legs of its IC 2 CXA1191 are by series connected capacitor C 20, loudspeaker Y ground connection, 6 of its IC 2 CXA1191, shunt resistance R35 between 21 legs;

1 leg of its IC 3 LM324 is by series connected resistance R 19, capacitor C 17 ground connection, R19, the mid point of capacitor C 17 connects 14 legs of IC 4 VD5027,2 legs of its IC 3LM324 connect capacitor C 23, the point of connection of resistance R 13,3 legs of its IC 3 LM324 are by parallel resistor R14, C25 ground connection, 4 of its IC 3 LM324,5 leg shunt resistance R15,5 legs of its IC 3 LM324 are by resistance R 16 ground connection, connect 7 legs by resistance R 18 simultaneously, 6 legs of its IC 3 LM324 are by capacitor C 26 ground connection, 6 of its IC 3 LM324, shunt resistance R17 between 7 legs, 7 legs of its IC 3 LM324 connect the collecting electrode of aerotron BG2 by

resistance R

24,8 legs of its IC 3 LM324 connect the base stage of aerotron BG2 by resistance R 9,9 of its IC 3 LM324, shunt resistance R10 between 10 legs, 9 legs of its IC 3 LM324 connect 12 legs by resistance R 8,10 of its IC 3 LM324,11 leg shunt resistance R11,11 of its IC 3 LM324,12 parallel diode D3, the 11 leg ground connection of its IC 3 LM324,10 of its IC 3LM324, the series connected resistance R 6 of parallel connection between 12 legs, 7, its resistance R 6,7 mid point connects 26 legs of IC 2 CXA1191, resistance 25, the mid point of electric capacity 22 connects the collecting electrode of aerotron BG2 by backward diode D9, the grounded emitter of aerotron BG2,13 legs of its IC 3LM324 are by parallel resistor R12, capacitor C 24 ground connection, be connected to 17 legs of IC 4 VD5027 simultaneously by backward diode D4,14 legs of its IC 3 LM324 are connected to

LED

8,7,6,5,4,3,2,1 negative terminal;

2～8 legs of its IC 4 VD5027 are connected to 1 of 2～8 positive pole of LED and IC 5 CD4017,4,5,6,7,9,10 legs, LED 1 is by backward diode D7, D8 is connected to 2 of IC 5,3 legs, the 9 leg ground connection of its IC 4 VD5027,15 of its IC 4 VD5027,16 leg shunt resistance R20,18 legs of its IC 4 VD5027 are by capacitor C 35 ground connection, simultaneously by series connected backward diode D5, resistance R 23 connects the collecting electrode of aerotron BG3, the grounded emitter of aerotron BG3, the base stage of aerotron BG3 is by resistance R 21 ground connection, and the base stage of aerotron BG3 is by series opposing diode D5, the negative pole of resistance R 22 sending and receiving optical diodes;

The 8 leg ground connection of its IC 5 CD4017,9 legs of its IC 5 CD4017 connect 3 legs of its IC 4 VD5027,10 legs of its IC 5 CD4017 connect 2 legs of its IC 4 VD5027,11 of its IC 5 CD4017,15 short legs roads connect, 13 legs of its IC 5 CD4017 connect the collecting electrode of aerotron BG3 by resistance R 30,14 legs of its IC 5 CD4017 connect 7 legs of IC 3 LM324 by resistance R 29,16 of its IC 5 CD4017 pass through capacitor C 28 ground connection, connect 4 legs of IC 3 LM324 simultaneously;

1 leg of its IC 6 AP8108A connects series resistance R25,26 mid point, 2, the 4 shunt resistance R33 of its IC 6 AP8108A, 3 legs of its IC 6 AP8108A are by resistance R 28 ground connection, connect the collecting electrode of aerotron BG3 simultaneously by resistance R 31, and 14 legs that meet IC 5 CD4017 by series connected capacitor C 29, resistance 27,29,4 legs of its IC 6 AP8108A are by capacitor C 30 ground connection, the 5 leg ground connection of its IC 6 AP8108A;

4 legs of its IC 3 LM324 are by the positive ground of series connected resistance R 34 LEDs 9, and by series connected resistance R 32, capacitor C 31 ground connection, series connected resistance R 32, the mid point of capacitor C 31 connects 4 legs of IC 6 APS108A, and diode D5, the point of connection of resistance R 23, the positive pole of another contact power connection E of K switch, the negative earth of power supply E, capacitor C 32 is connected in parallel on the two ends of power supply E, another contact of K switch connects the mouth of IC 7 LM7806 by backward diode D10, the input end of its IC 7 LM7806, difference parallel capacitance C33 between mouth and ground, C34, the ground end ground connection of its IC 7 LM7806, the input end of its IC 7 LM7806 is through backward diode D11, resistance R 36 is to the core end of power input terminal GK, the ground end ground connection of input terminal GK.

The utility model has following advantage compared to existing technology: owing to can show in time that wheel is under-voltage, can reduce the generation of traffic accident; Can be the car owner and retrieve the loss that the damage of tire mal causes; Can be the driver and alleviated the mental burden that the worry tire flat damages in the way of travelling; The driver has avoided at set intervals the parking checking tire and has wasted time, and has improved the operation timeliness.

The utility model is further described below in conjunction with diagram and embodiment:

[illustrating]

Fig. 1. pressure sensor scheme drawing of the present utility model;

Fig. 2. radiating portion electrical schematic diagram of the present utility model;

Fig. 3 receiving unit electrical schematic diagram of the present utility model.

This electronic type tire deflation language alarm divides emission part and receiving unit to form, and radiating portion is contained on the wheel pot circle, and pressure sensor is fixed on the valve; Receiving unit is contained in vehicle cab, and the driver can in time hear warning sound and see the position of under-voltage tire.

Its pressure sensor is made of hold-doun nut, air pressure guide rod, sensitive switch, pressure sensor is fixed on the cranked tire valve, by the valve opening key plunger in the cranked tire valve is backed down, the tire internal pressure just acts on the guide rod plunger by the guide rod endoporus, plunger elasticity stem stem acts on the saltant micro-switch in guide rod, change the pressure that switch contact bears by the length of adjusting nut screw-in guide rod, realize the adjustment of warning air pressure threshold values.

The working process of radiating portion is described below:

See also Fig. 1,2, baroceptor is contained on the charging connector of tire, and when the air pressure in the tire was in normal value, sensor was in quiescence, and aerotron BG2, BG3 in the projector (refer to the twin tire wheel, if single tire has only BG2, do not adorn BG3.) all be in off condition, oscillator is not worked, if for a certain reason, when tire pressure is reduced to certain setting value, sensors A or B state change, cooresponding aerotron BG2 or BG3 conducting, coding IC VD5026 work, the coded pulse of its output makes the BG1 starting of oscillation, to the modulated hyperfrequency waves of spatial emission.

The working process of receiving unit is described below:

See also Fig. 3, receiving unit is contained in the driving compartment, opening power stand-by operation during driving, this moment, indicator lamp was bright, loudspeaker are quiet, position of foetus indicator lamp goes out entirely, after the projector work on certain tire, its electric wave is received immediately, and signal is integrated delivers to IC 2CXA1191 after IC circuit 1U9 amplifies, amplify through IC 2 CXA1191, frequency conversion, in put, demodulation, from 23 leg output encoder pulses, this pulse is amplified through IC 3 LM324, shaping, deliver to decoding integrated circuit IC4 VD5027, the a certain leg output high level in 1～8 leg that makes decoding integrated circuit IC4 VD5027 is exported in decoding, and its 17 leg is also exported high level simultaneously;

5,6, the 7 legs composition of its IC 3 LM324 is lower than one hertz ultralow-frequency oscillator, its output pulse divides three tunnel outputs, 14 legs of IC 5 CD4017 are delivered on the one road through resistance R 29, as its count pulse, occur high level in turn and move in circles at its 0～9 step-by-step counting mouth.When IC4 does not have decoding output, the equal output low level of 2～8 legs of IC4, the high level pulse with the corresponding output leg of IC 5CD4017 absorbs respectively.17 legs of while IC 4 VD5027 are output low level also, the 14 legs output high level of IC 3 LM324, this high level makes LED 1～8 negative pole current potential raise and can not light, simultaneously, this high level also makes aerotron BG3 saturation conduction, and its collecting electrode is in active potential.

When IC 4 VD5027 have decoding output, leg output high level in 2～8 legs of its 17 leg and corresponding launching code, this moment, 14 legs of IC 3 LM324 became low level, LED 1～8 wherein one lighted, indicate the gas leakage position of foetus.This moment, aerotron BG3 was ended by saturated becoming, its collecting electrode high potential makes IC 5 CD4917 locking through resistance R 30, and trigger speech IC IC6 AP8108A through resistance R 31 and export voice signal, 24 legs that this voice signal is delivered to IC 2 CXA1191 carry out power amplifier and promote loudspeaker pronunciation " master worker, tire becomes flat and please check ".

8～10 legs of IC 3 LM324 are formed voltage comparator, reduce to 4V when following when self-contained battery, send the replacing battery caution sound of " clatter clatter " in loudspeaker.The switching valve that aerotron BG2 transmits to IC 2 CXA1191 as this signal.

IC 7 LM7896 are three terminal regulator.(do the voltage stabilizing power supply during 12V～24V), and charge using in-vehicle secondary battery to chargeable battery E.

Claims

1. an electronic type tire deflation language alarm is made of pressure sensor, transmission circuit and acceptor circuit; It is characterized in that:

Pressure sensor is made of hold-doun nut, air pressure guide rod, sensitive switch; Hold-doun nut is a cylindrical shape, and interior round left end is provided with screw thread, and its internal diameter is greater than the termination of air pressure guide rod left end, the right-hand member riveting of this hold-doun nut on air pressure guide rod left end head, both sliding fits; Air pressure guide rod cylindrical divides thickness two parts, the thick part of left end by riveting in nut, the part that right-hand member is thin is provided with screw thread, the central part of air pressure guide rod separates breather hole, place, left end aperture is provided with a key across the breather hole central segment, the both sides of key are provided with breather hole, and circle has rubber grommet in the left end of air pressure guide rod, and circle is provided with screw thread in the air pressure guide rod right-hand member; Sensitive switch is circular, and circle is provided with screw thread in the left end, and the right-hand member endoporus is square;

The concrete connection of acceptor circuit is as follows:

Receiving wire ANT is by inductance L 1 ground connection, its receiving wire ANT, inductance L 1 bonded assembly mid point are by forward, backward diode D1, D2 ground connection, connect the input end of IC 1U9 by capacitor C 1, the ground terminal ground connection of its IC 1U9, the mouth of its IC 1U9 connects 12 legs of IC 2 through C3, the power end of its IC 1U9 is by C 2 ground connection, and 4 legs that connect K switch and IC 3 by resistance R 1;

9 legs of its IC 2 CXA1191 are by inductance L 2, capacitor C 5 circuiies parallel and capacitor C 4 ground connection, inductance L 2, capacitor C 5 circuiies parallel and capacitor C 4 bonded assembly mid points connect 8 legs of IC 2 CXA1191,7 of its IC 2 CXA1191, shunt inductance L3 between 8 legs, 6 of its IC 2 CXA1191, parallel capacitance C7 between 7 legs, 7 legs of its IC 2CXA1191 connect the collecting electrode of aerotron BG1,8 legs of its IC 2 CXA1191 are by capacitor C 6 ground connection, connect the base stage of aerotron BG1 by resistance R 2, connect 1 leg of IC 2 CXA1191 by resistance R 3,1 leg of its IC 2 CXA1191 is by capacitor C 10 ground connection, the base stage of its aerotron BG1, current collection level crystal oscillator LB in parallel, and base stage, emitting stage parallel capacitance C11, the 4 leg ground connection of its IC 2 CXA1191,3 of its IC 2CXA1191, parallel capacitance C8 between 4 legs, 2 legs of its IC 2 CXA1191 are by series capacity C9, resonance circuit T ground connection, the 13 leg ground connection of its IC 2 CXA1191,14 legs of its IC 2 CXA1191 pass through capacitor C 12 ground connection by resistance R 4 ground connection and 15 legs, 17 legs of its IC 2 CXA1191 are by series connected capacitor C 14, inductance L 4 ground connection, series connected capacitor C 14, inductance L 4 mid points connect 14 legs of IC 2 CXA1191 by capacitor C 13, the 20 leg ground connection of its IC 2 CXA1191,21 legs of its IC 2 CXA1191 are by capacitor C 15 ground connection, 22 legs of its IC 2 CXA1191 are by capacitor C 16 ground connection, 23 legs of its IC 2 CXA1191 are by capacitor C 17 ground connection, and by series connected resistance R 5, capacitor C 23, resistance R 13 connects 3 legs of IC 3 LM324,24 legs of its IC 2 CXA1191 are by the C22 of capacitances in series, resistance 25,26 ground connection, 25 legs of its IC 2 CXA1191 are by series connected capacitor C 18, C19 connects 26 legs, capacitor C 18, the neutral earthing of C19,26 legs of its IC 2 CXA1191 connect 4 legs of IC 3324,27 of its IC 2 CXA1191, parallel capacitance C21 between 28 legs, the 28 leg ground connection of its IC 2 CXA1191,27 legs of its IC 2 CXA1191 are by series connected capacitor C 20, loudspeaker Y ground connection, 6 of its IC 2 CXA1191, shunt resistance R35 between 21 legs;

1 leg of its IC 3 LM324 is by series connected resistance R 19, capacitor C 17 ground connection, R19, the mid point of capacitor C 17 connects 14 legs of IC 4 VD5027,2 legs of its IC 3LM324 connect capacitor C 23, the point of connection of resistance R 13,3 legs of its IC 3 LM324 are by parallel resistor R14, C25 ground connection, 4 of its IC 3 LM324,5 leg shunt resistance R15,5 legs of its IC 3 LM324 are by resistance R 16 ground connection, connect 7 legs by resistance R 18 simultaneously, 6 legs of its IC 3 LM324 are by capacitor C 26 ground connection, 6 of its IC 3 LM324, shunt resistance R17 between 7 legs, 7 legs of its IC 3 LM324 connect the collecting electrode of aerotron BG2 by resistance R 24,8 legs of its IC 3 LM324 connect the base stage of aerotron BG2 by resistance R 9,9 of its IC 3 LM324, shunt resistance R10 between 10 legs, 9 legs of its IC 3 LM324 connect 12 legs by resistance R 8,10 of its IC 3 LM324,11 leg shunt resistance R11,11 of its IC 3 LM324,12 parallel diode D3, the 11 leg ground connection of its IC 3 LM324,10 of its IC 3LM324, the series connected resistance R 6 of parallel connection between 12 legs, 7, its resistance R 6,7 mid point connects 26 legs of IC 2 CXA1191, resistance 25, the mid point of electric capacity 22 connects the collecting electrode of aerotron BG2 by backward diode D9, the grounded emitter of aerotron BG2,13 legs of its IC 3LM324 are by parallel resistor R12, capacitor C 24 ground connection, be connected to 17 legs of IC 4 VD5027 simultaneously by backward diode D4,14 legs of its IC 3 LM324 are connected to LED 8,7,6,5,4,3,2,1 negative terminal;

4 legs of its IC 3 LM324 are by the positive ground of series connected resistance R 34 LEDs 9, and by series connected resistance R 32, capacitor C 31 ground connection, series connected resistance R 32, the mid point of capacitor C 31 connects 4 legs of IC 6 AP8108A, and diode D5, the point of connection of resistance R 23, the positive pole of another contact power connection E of K switch, the negative earth of power supply E, capacitor C 32 is connected in parallel on the two ends of power supply E, another contact of K switch connects the mouth of IC 7 LM7806 by backward diode D10, the input end of its IC 7 LM7806, difference parallel capacitance C33 between mouth and ground, C34, the ground end ground connection of its IC 7 LM7806, the input end of its IC 7 LM7806 is through backward diode D11, resistance R 36 is to the core end of power input terminal GK, the ground end ground connection of input terminal GK.