CN100349764C - Motor vehicle signal lamp fault monitoring instrument - Google Patents
Motor vehicle signal lamp fault monitoring instrument Download PDFInfo
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- CN100349764C CN100349764C CNB2004100157305A CN200410015730A CN100349764C CN 100349764 C CN100349764 C CN 100349764C CN B2004100157305 A CNB2004100157305 A CN B2004100157305A CN 200410015730 A CN200410015730 A CN 200410015730A CN 100349764 C CN100349764 C CN 100349764C
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Abstract
The present invention relates to a fault monitoring instrument for a motor vehicle signal lamp, which is composed of a signal lamp state and filament breakage detection circuit, a signal trigger circuit, an oscillating circuit and a sound-light alarm display circuit, wherein the signal lamp state and filament breakage detection circuit comprises a diode which is connected between the signal lamp and a power switch in series, a signal lamp filament breakage and circuit breakage sampling branch circuit which is composed of two triodes, and two voltage comparators; one voltage comparator is used for distinguishing the sample of a signal for displaying the lighting and extinguishing state of the signal lamp, and the other voltage comparator is used for distinguishing the sample of a signal for the fault of the signal lamp; the signal trigger circuit comprises tow phase inverters and an NAND gate; the oscillating circuit is composed of a ' 555 ' time base integrated circuit, a resistor and a capacitor; the alarm display circuit is composed of an electric magnetic buzzer, a light emitting diode and a switch triode. When the motor vehicle signal lamp generates a fault because of the filament breakage and the circuit breakage, the signal fault monitoring instrument of the motor vehicle can send out sound-light alarm. When the motor vehicle signal lamp is in a normal state, the power is switched on, the signal lamp is lighted, and simultaneously, the light emitting diode is lighted to display the normal state.
Description
Technical field
The present invention relates to a kind of motor vehicle signal lamp fault monitoring instrument, relate in particular to a kind of fault monitoring instrument that self-propelled vehicle external application signal lamp comprises indicator, fog lamp, stoplight stop lamp, backing-up lamp, headlamp and side-marker lamp that is used for
Background technology
For a long time, various self-propelled vehicle external application signal lamps comprise that indicator, fog lamp, stoplight stop lamp, backing-up lamp, headlamp and side-marker lamp are in no monitored state, and signal lamp hinders for some reason and extinguishes in the time of maybe can not lighting, and chaufeur can't be discovered immediately.This is great accident potential when driving, especially greasy weather or evening and travel at express highway, in case et out of orders such as indicator, fog lamp, stoplight stop lamp, backing-up lamp, headlamp and side-marker lamp are failed to light and are not in time realized, might cause a serious accident.
Summary of the invention
The purpose of this invention is to provide a kind of navigating mate that allows, the monitor that can in time be found because of various external application signal lamp failures.
The objective of the invention is such realization: by " signal lamp state and fracture of wire testing circuit ", " signal triggering circuit " " oscillating circuit " and " sound and light alarm display circuit " forms a motor vehicle signal lamp fault monitoring instrument." signal lamp state and fracture of wire testing circuit " is the diode of connecting between signal lamp and source switch, its diode cathode power connection switch, and negative pole and signal lamp one end join, and the switch other end and power supply join, signal lamp other end ground connection." signal lamp state fracture of wire testing circuit " contains two aerotrons, and promptly an aerotron is that positive-negative-positive and another are the NPN types.The base stage of positive-negative-positive aerotron is connected between diode cathode and the signal lamp, and emitter is connected on the power supply through a resistance, and the base stage of collecting electrode and another NPN aerotron is joined, and the collecting electrode of NPN type aerotron is through a resistance power connection, grounded emitter." signal lamp state and fracture of wire testing circuit " also contains two voltage comparators, be state display voltage comparator and fault alarm voltage comparator, the positive input of state display voltage comparator and a diode cathode join, and through a resistance eutral grounding, diode cathode is connected on the switch, the reverse input end of state display voltage comparator is connected on the current colector of NPN type aerotron, mouth links to each other with resistance and light-emitting diode are anodal through a diode, the light-emitting diode negative earth, the positive input of fault alarm voltage comparator joins through resistance and power supply, the collecting electrode of its reverse input end and NPN type aerotron joins, and its mouth is connected with the phase inverter of signal triggering circuit." signal triggering circuit " is made of two phase inverters and a non-conjunction, also comprise a diode that is connected with the oscillating circuit trigger end, with two diodes that are connected with the light-emitting diode current-limiting resistance, " oscillating circuit " by " 555 " time-base integrated circuit and two resistance and an electric capacity formation, oscillation frequency is 1Hz." sound and light alarm display circuit " adopts diode displaying and electric magnetic buzzer to report to the police, and the sound and light alarm display circuit also contains an aerotron and two resistance.Type of alarm is that per second is once intermittently reported to the police, and light-emitting diode glitters synchronously simultaneously.
State display voltage comparator in " signal lamp state fracture of wire testing circuit " is used for the sample of signal of motor vehicle signal lamp " bright " and " putting out " two states to be judged, and the sample of signal of fault alarm voltage comparator when being used for signal lamp failure differentiated.The invention provides a kind of can the convenience and promptly understand motor vehicle signal lamp mode of operation means, improved traveling security greatly, and had dependable performance, the advantage that can on various existing vehicles, install.
Further be illustrated below by way of embodiments and drawings.
Description of drawings
Accompanying drawing is the circuit structure diagram of motor vehicle signal lamp fault monitoring instrument of the present invention.
Specific embodiments
With reference to accompanying drawing, will be described in detail specific embodiments of the present invention.
Accompanying drawing has provided a kind of circuit structure diagram by the concrete scheme of motor vehicle signal lamp fault monitoring instrument of the present invention.In the accompanying drawings, show signal lamp state and broken circuit detection circuit 1, signal triggering circuit 2, oscillating circuit 3, sound and light alarm display circuit 4, diode 5,6,21,22 and 23, light-emitting diode 33, positive-negative-positive aerotron 12, NPN type aerotron 13 and 30, state display voltage comparator 8 and fault alarm voltage comparator 9, resistance 11,14,15,16,20,26,27,29 and 32, electric capacity 28, phase inverter 17 and 19, NAND gate " 18; " 555 " time-base integrated circuits 24; trigger end 25 of " 555 " time-base integrated circuit 24 and mouth 35, power supply 34, switch 7; motor vehicle signal lamp 10, the annexation of electric magnetic buzzer 31.
In the accompanying drawings, diode 5 is serially connected between switch 7 and the signal lamp 10, and switch 7 one ends link to each other with power supply 34, the other end and 5 anodal linking to each other of diode, and the negative pole of diode 5 links to each other with motor vehicle signal lamp 10, the other end ground connection of motor vehicle signal lamp 10.Form the signal lamp fracture of wire sampling slip that opens circuit by positive-negative-positive aerotron 12 and NPN type aerotron 13, the base stage of positive-negative-positive aerotron 12 is connected on the negative pole of diode 5, emitter links to each other with power supply 34 through resistance 14, collecting electrode is connected with the base stage of NPN type aerotron 13, the grounded emitter of NPN type aerotron 13, its collecting electrode joins through resistance 15 and power supply 34.The positive input of state display voltage comparator 8 and the negative pole of diode 6 join, and through resistance 11 ground connection, the positive pole of diode 6 is connected to an end of switch 7.The collecting electrode of the reverse input end of state display voltage comparator 8 and NPN type aerotron 13 joins, and mouth links to each other with the positive pole of diode 23, and the negative pole of diode 23 joins the negative earth of light-emitting diode 33 through resistance 32 and light-emitting diode 33 positive poles.The positive input of fault alarm voltage comparator 9 joins with power supply 34 through a resistance 16, reverse input end is connected on the collecting electrode of NPN type aerotron 13, the input end of mouth and phase inverter 17 joins, the mouth of phase inverter 17 is connected to the positive pole of diode 21, the negative pole of diode 21 during with " 555 " basis set become the trigger end 25 on road 24 to link to each other, trigger end 25 is also through resistance 20 ground connection.The mouth of phase inverter 17 links to each other with an input end of non-conjunction 18 simultaneously, and another input end of non-conjunction 18 links to each other with the mouth 35 of " 555 " time-base integrated circuit 24, the mouth of non-conjunction 18 links to each other with the input end of phase inverter 19, the mouth of phase inverter 19 links to each other with the positive pole of diode 22, and the negative pole of diode 22 links to each other through the positive pole of resistance 32 with light-emitting diode 33.Resistance 26,27 and electric capacity 28 and " 555 " time-base integrated circuit 24 are formed oscillating circuit 3, the mouth 35 of " 555 " time-base integrated circuit 24 links to each other with resistance 29, " 555 " time-base integrated circuit 24 also is connected with power supply 34 and earth point, the other end of resistance 29 links to each other with the base stage of aerotron 30, the collecting electrode of aerotron 30 is connected with the negative pole of electric magnetic buzzer 31, the positive pole of electric magnetic buzzer 31 is connected with power supply 34, the grounded emitter of aerotron 30.
Motor vehicle signal lamp fault monitoring instrument principle of work of the present invention is: in normal operation, connect switch 7, electric current flows to earth point through diode 5 and signal lamp 10, signal lamp 10 is lighted, because diode 5 has electric current to flow through, diode 5 two ends have the pressure drop of 0.7V, be that diode cathode voltage ratio positive electrical is forced down about 0.7V, characteristic according to the positive-negative-positive aerotron, the base tension of aerotron 12 is lower than emitter voltage and conducting, and make 13 conductings of NPN type aerotron, because the conducting of aerotron 13, make the current potential of the collecting electrode of aerotron 13 be pulled to low level, also make the backward end of state display voltage comparator 8 and fault alarm voltage comparator 9 be pulled to low level, at this moment, the mouth of state display voltage comparator 8 and fault alarm voltage comparator 9 is exported high level simultaneously, because the mouth output high level that state shows comparator 8 is through diode 23 and resistance 32 light-emitting diode 33 of flowing through, light-emitting diode 33 is lighted, inform that with this navigating mate signal lamp is in illuminating state, simultaneous faults alarm voltage comparator 9 is also exported high level, become low level through phase inverter 17, " 555 " time-base integrated circuit 24 is not triggered, its mouth 35 output low levels, aerotron 30 ends, electric magnetic buzzer 31 is noiseless, while phase inverter 17 output low levels, make its output high level through non-conjunction 18, through phase inverter 19 anti-phase output low levels, diode 22 no currents flow through and end again.This moment, if signal lamp 10 fracture of wires damage or open circuit with grounding jumper, be that diode 5 does not have electric current to flow through, two ends of diode 5 do not have pressure drop, both positive and negative polarity two terminal voltages that are diode 5 equate, positive-negative-positive aerotron 12 base tensions are equated with emitter voltage, characteristic according to the positive-negative-positive aerotron, positive-negative-positive aerotron 12 ends, NPN type aerotron 13 is ended, make its collector voltage be pulled to high level, status displays voltage comparator 8 and fault alarm voltage comparator 9 be output low level simultaneously, because state display voltage comparator 8 output low levels, diode 23 no currents are by ending, and fault alarm voltage comparator circuit 9 output low levels are through phase inverter 17 anti-phase output high level, the trigger end 25 that triggers " 555 " time-base integrated circuit 24 through diode 21 makes its vibration, the square wave of oscillation frequency 1HZ is through mouth 35 outputs of " 555 " time-base integrated circuit 24, make aerotron 30 by above-mentioned oscillation frequency conducting, end, conducting, electric magnetic buzzer 31 is intermittently reported to the police by said frequencies, the mouth 35 of " 555 " time-base integrated circuit 24 makes its mouth export height successively by above-mentioned oscillation frequency through non-conjunction 18 another input ends simultaneously, low level, anti-phase through phase inverter 19 more intermittently glittered light-emitting diode 33 synchronously.
In normal operation, as switch 7 access failure power supplys 34, be that signal lamp 10 is not when being lighted, the base stage of positive-negative-positive aerotron 12 is through the filament ground of signal lamp 10, according to positive-negative-positive aerotron characteristic, because of its electrode potential is lower than 12 conductings of collector potential positive-negative-positive aerotron, also make 13 conductings of NPN type aerotron, simultaneously, make the current potential of the reverse input end of state display voltage comparator 8 and fault alarm voltage comparator 9 be pulled to low level, the positive input of state display voltage comparator 8 disconnects because of switch 7, the no-voltage input, so the mouth output low level, the light-emitting diode no current flows through and does not work.Simultaneously, fault alarm voltage comparator 9 mouths output high level, through the phase inverter 17 anti-phase low levels that become, " 555 " time-base integrated circuit 24 is not triggered, its mouth 35 output low levels, aerotron 30 ends, electric magnetic buzzer is noiseless, and the mouth of reverser 17 is anti-phase through non-conjunction 18 and phase inverter 19, makes the mouth output low level of phase inverter 19, light-emitting diode 33 no currents flow through and do not work, and inform with this that navigating mate signal lamp is in and extinguish state.If fracture of wires take place or during with the ground connection open circuit fault in signal lamp 10 this moment, the base stage of positive-negative-positive aerotron 12 is unsettled and end, NPN type aerotron 13 also ends, the reverse input end of state display voltage comparator 8 and fault alarm voltage comparator 9 is pulled to high level, force the mouth output low level of fault alarm voltage comparator 9, through phase inverter 17 umklapp transformation high level, trigger 24 vibrations of " 555 " time-base integrated circuit through diode 21, the square wave of oscillation frequency 1Hz is through mouth 35 outputs of " 555 " time-base integrated circuit 24, make aerotron 30 by the said frequencies conducting, end, conducting, electric magnetic buzzer 31 sends intermittently chimes of doom, the mouth 35 of " 555 " time-base integrated circuit 24 makes its mouth export height successively by above-mentioned oscillation frequency through the other end input end of non-conjunction 18 simultaneously, low level, the electric current that makes its mouth through phase inverter 19 anti-phase is through diode 22 with resistance 32 flow to light-emitting diode 33 and light-emitting diode 33 is glittered synchronously again.
Claims (2)
1, a kind of motor vehicle signal lamp fault monitoring instrument, by " signal lamp state and fracture of wire control circuit " (1), " signal triggering circuit " (2), " oscillating circuit " (3) and " sound and light alarm display circuit " (4) are formed; It is characterized in that: contain a diode (5) in signal lamp state and the fracture of wire testing circuit, diode (5) is serially connected between switch (7) and the signal lamp (10), the positive pole of diode (5) is connected with switch (7), negative pole is connected with an end of signal lamp (10), switch (7) is connected with power supply (34), the other end ground connection of signal lamp (10); In " signal lamp state and fracture of wire testing circuit ", also contain a positive-negative-positive aerotron (12) and another NPN type aerotron (13), the sampling slip of having formed a signal lamp fracture of wire, having opened circuit by positive-negative-positive aerotron (12) and NPN type aerotron (13); The base stage of positive-negative-positive aerotron (12) links to each other with the negative pole of diode (5), emitter is connected with power supply (34) through resistance (14), collecting electrode is connected with the base stage of NPN type aerotron (13), the grounded emitter of NPN type aerotron (13), its collecting electrode is connected with power supply (34) through resistance (15), and the collecting electrode of NPN type aerotron (13) is connected with the reverse input end of state display voltage comparator (8) with fault alarm voltage comparator (9) simultaneously.
2, its feature of motor vehicle signal lamp fault monitoring instrument according to claim 1 also is to also have two voltage comparators in " signal lamp state and fracture of wire testing circuit " (1), be state display voltage comparator (8) and fault alarm voltage comparator (9), state display voltage comparator (8) is used for signal lamp " bright " and differentiates with the sample of signal of the two states of " putting out "; Fault alarm voltage comparator (9) is the sample of signal differentiation when then being used for signal lamp failure; The positive input of state display voltage comparator (8) is connected with the negative pole of diode (6) and through resistance (11) ground connection; The positive pole of diode (6) is connected with switch (7), and its reverse input end is connected with the collecting electrode of NPN type aerotron (13), and the positive pole of the diode (23) in its mouth and the signal triggering circuit (2) is connected;
The positive input of fault alarm voltage comparator (9) is connected with power supply (34) through resistance (16), its reverse input end is connected with the collecting electrode of NPN type aerotron (13), and the input end of the reverser (17) in its mouth and the signal triggering circuit (2) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100157305A CN100349764C (en) | 2004-01-09 | 2004-01-09 | Motor vehicle signal lamp fault monitoring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100157305A CN100349764C (en) | 2004-01-09 | 2004-01-09 | Motor vehicle signal lamp fault monitoring instrument |
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| CN1640723A CN1640723A (en) | 2005-07-20 |
| CN100349764C true CN100349764C (en) | 2007-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100157305A Expired - Fee Related CN100349764C (en) | 2004-01-09 | 2004-01-09 | Motor vehicle signal lamp fault monitoring instrument |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105491708B (en) * | 2015-12-18 | 2017-05-03 | 上海小糸车灯有限公司 | Rear position lamp of auto and control circuit for controlling multiple light sources on/off synchronously |
| CN108569212A (en) * | 2017-10-27 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of fault diagnosis reponse system of automobile LED car light |
| CN108082041A (en) * | 2017-12-26 | 2018-05-29 | 广东晶科电子股份有限公司 | A kind of steering indicating light detecting fault system |
| CN110300482B (en) * | 2018-03-22 | 2024-04-12 | 深圳富桂精密工业有限公司 | Intelligent lamp and remote monitoring system |
| CN113567809A (en) * | 2021-07-29 | 2021-10-29 | 武汉三相电力科技有限公司 | Fault positioning equipment, system and method for cable joint |
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| US5157376A (en) * | 1990-04-04 | 1992-10-20 | Mercedes-Benz Ag | Method and device for monitoring direction indicator lights of a vehicle trailer |
| US5254971A (en) * | 1991-01-18 | 1993-10-19 | General Motors Corporation | Adaptive lamp monitor using capacitors and switches |
| US5798690A (en) * | 1996-02-08 | 1998-08-25 | Varity Gmbh | Monitoring circuit for an ABS warning lamp |
| CN2438118Y (en) * | 2000-06-26 | 2001-07-04 | 王麓 | Light fault monitor for car |
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2004
- 2004-01-09 CN CNB2004100157305A patent/CN100349764C/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125824A (en) * | 1975-05-20 | 1978-11-14 | Barmac Electronics | Alarm circuit |
| CN87205482U (en) * | 1987-11-23 | 1988-08-10 | 陕西省礼泉县看守所 | Automatic alarm for monitoring the trouble of vehicle electrical equipment |
| CN2058890U (en) * | 1988-10-18 | 1990-07-04 | 张维会 | Light trouble automatic display device |
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| US5157376A (en) * | 1990-04-04 | 1992-10-20 | Mercedes-Benz Ag | Method and device for monitoring direction indicator lights of a vehicle trailer |
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| US5254971A (en) * | 1991-01-18 | 1993-10-19 | General Motors Corporation | Adaptive lamp monitor using capacitors and switches |
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| CN1640723A (en) | 2005-07-20 |
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Granted publication date: 20071121 Termination date: 20110109 |