CN2069814U - Monitoring instrument of vehicle lighting circuit - Google Patents

Monitoring instrument of vehicle lighting circuit Download PDF

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Publication number
CN2069814U
CN2069814U CN 90214754 CN90214754U CN2069814U CN 2069814 U CN2069814 U CN 2069814U CN 90214754 CN90214754 CN 90214754 CN 90214754 U CN90214754 U CN 90214754U CN 2069814 U CN2069814 U CN 2069814U
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circuit
gate
resistance
exclusive
car light
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CN 90214754
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Chinese (zh)
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马俊章
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Individual
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Individual
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Abstract

The utility model relates to a monitoring instrument of a vehicle lighting circuit. An exclusive OR gate integrated circuit diode, a triode, a two-way switch and a peripheral circuit are formed into a fault monitoring circuit used for monitoring the total state of turning on and off lamps of a vehicle lamp circuit. The utility model is favorable for drivers to accurately discover and eliminate faults in time.

Description

Monitoring instrument of vehicle lighting circuit
The utility model relates to the fault monitoring device of a kind of car lighting or signal line.
Find in time and the illuminating lamp of handler motor-car or the line fault of signal lamp that in order to make automobile driver Chinese utility model patent discloses a kind of vehicle lights supervisory device for No. 87207778.This device is by a dry-reed tube Homeway.com Chinese percussion instrument series connection, is made up of a coil on the dry-reed tube shell again.Coil and by the series connection of the lamp supervised, the switching of dry-reed tube contact is controlled in current generated variation when utilizing lamp all bright or part is bright, and sends indication by the news Chinese percussion instrument.In this utility model, coil and dry-reed tube have constituted testing circuit, and the news Chinese percussion instrument has constituted Display and Alarm Circuit.By the detected breakdown signal of testing circuit, export to Display and Alarm Circuit, report to the police to chaufeur.Above-mentioned vehicle lights supervisory device can be supervised line fault effectively under automobile is turned on light state, have certain advantage.But, since this device can not be when car light be in closed condition the Monitoring Line fault, so can not when car light does not use, in time find to be unfavorable for fault preventing trouble before it happens.Therefore, above-mentioned car light supervisory device still has certain defective.
The purpose of this utility model provides a kind ofly both can monitor when turning on light, again the automotive lighting path monitoring instrument that can monitor when turning off the light.
Automotive lighting path monitoring instrument of the present utility model improves on the basis of above-mentioned existing supervisory device.In the utility model, for the car light circuit being carried out the monitoring of open and close lamp total state, the testing circuit to above-mentioned existing supervisory device improves especially, promptly is provided with the fault monitoring signal circuit based on the Exclusive-OR gate (XOR gate) integrated circuit especially.In the utility model, the mouth of fault monitoring signal circuit is connected with the input end of Display and Alarm Circuit, setting by peripheral circuit, make just often at the car light circuit, two input end level of the Exclusive-OR gate (XOR gate) integrated circuit in the observation circuit are identical, promptly are all high level (state of turning on light) or low level (turn-off).When the car light circuit broke down, the level of two input ends of Exclusive-OR gate (XOR gate) occurred unusual, presents one high and one low state.At this moment, the mouth of Exclusive-OR gate (XOR gate) will be exported high level, promptly export breakdown signal.This breakdown signal inputs to after the Display and Alarm Circuit, and Display and Alarm Circuit is promptly warned to chaufeur by alarm element.In the utility model,, in observation circuit, adopted the form that the car light circuit of each car light on the automobile is monitored respectively especially in order chaufeur can be sought rapidly look into and to get rid of line fault.Display and Alarm Circuit in the utility model can be continued to use the version of existing warning circuit, as a row and the corresponding indicator lamp of each car light circuit can be set simply, when a certain car light circuit breaks down, to make with the corresponding indicator lamp of faulty line shinnyly by the breakdown signal of Exclusive-OR gate (XOR gate) mouth output in the observation circuit, warn to chaufeur.In addition, news also can be set ring device, utilize breakdown signal to make news ring device and send the sound equipment signal, remind chaufeur to note.Certainly, also can adopt other more perfect circuit of warning, so that chaufeur can be found and handling failure in time, exactly.In the utility model, brightness, installation site and the usage condition of considering each car light have nothing in common with each other, for chaufeur appreciiable car light when using and turning on light night only, as side lamp or country beam, passing light, because the fault that the driver occurred in the time of can in time finding to turn on light, this class lamp is carried out the monitoring of open and close lamp total state like unnecessary, get final product and only need that it is carried out the turn-off monitoring.Therefore, in the utility model, by the total state observation circuit is suitably simplified, the circuit of chaufeur visible light is provided with the turn-off observation circuit specially when turning on light, to save element, to reduce the overall cost of monitor.Certainly, according to actual needs, also can adopt the total state observation circuit to monitor to the circuit of above-mentioned chaufeur visible light.In addition, also can only match with Display and Alarm Circuit, constitute the path monitoring instrument that carries out the turn-off monitoring specially, to adapt to the needs of different user with the turn-off observation circuit.
Automotive lighting path monitoring instrument of the present utility model has and can carry out total state monitoring to the car light circuit, helps finding accurately and timely the characteristics with trouble-shooting.
Content of the present utility model further illustrates in conjunction with the embodiments.
Fig. 1 is the circuit block diagram of monitor among the embodiment.
Fig. 2 and Fig. 3 are electrical schematic diagrams.
As shown in Figure 1, the path monitoring instrument of present embodiment is made of power interface I, turn-off fault monitoring circuit II, total state fault monitoring circuit III, comparison judging circuit IV and digital demonstration and sound light alarming circuit V, is provided with the car light inlet wire in turn-off and total state observation circuit, goes out line interface.
As shown in Figure 2, the turn-off observation circuit II of present embodiment monitor is made of two symmetrical branch roads, article two, symmetrical branch road can be respectively to left and right or forward and backward two the car light circuits that are subjected to same lighting switch control monitor (when using monitor, the car light inlet wire interface X of turn-off observation circuit in the present embodiment 1Can join with the lighting switch outlet, car light goes out line interface X 3, X 4Can join with two car lights respectively).With regard to the left branch of turn-off fault monitoring circuit, this route Exclusive-OR gate (XOR gate) IC 2-1(with IC 2-2, IC 2-3, IC 2-4Shared four Exclusive-OR gate (XOR gate) CD4070), diode D 1, wire fuse F 1And resistance R 1, R 7Constitute.IC wherein 2-1 Input pin 2 and car light inlet wire interface X 1, diode D 1Positive pole and resistance R 7An end be connected resistance R 7The negative pole of 12 volts of power supplys of another termination; IC 2-1Another input pin 1 and diode D 1Negative pole, wire fuse F 1An end, resistance R 1An end be connected wire fuse F 1Another termination car light go out line interface X 3, resistance R 1Other end power connection positive pole, IC 2-1Output pin 3 for this monitoring branch road the breakdown signal mouth.Under turn-off, X 1Level is " 0 " (referring to low level, down together), IC 2-1Input pin 2 also be " 0 " (R 7But the access disturbance rejection).During car light circuit trouble free, X 3Very little to ground end resistance R (mainly being the headlight filament cold resistance), R＜＜R 1, make IC 2-1Input pin 1 also be " 0 ", IC 2-1Output pin 3 be low level " 0 ".When open circuit fault appears in the car light circuit, X 3Very big to ground end resistance R, make R＞＞R 1, IC then 2-1 Input pin 1 transition be high level " 1 ", its output pin 3 also transition is " 1 ", thus output breakdown signal.In the present embodiment, the circuit structure of the right branch of turn-off fault monitoring circuit and principle of work and left branch are identical.In the utility model, many such monitoring branch roads can be set according to actual needs.
As shown in Figure 2, the total state observation circuit III of present embodiment monitor also is made of two symmetrical branch roads.With regard to its left branch, this route Exclusive-OR gate (XOR gate) IC 2-3, diode D 3, D 4, D 5, aerotron BG 1, wire fuse F 3, bidirectional switch IC 1-1, IC 1-2(with IC 1-3, IC 1-4Shared four bidirectional switch CD4066) and resistance R 3, R 5, R 8, R 9Constitute, wherein Exclusive-OR gate (XOR gate) IC 2-3Input pin 9 and car light inlet wire interface X 2, diode D 3The input pin 8 of positive pole, bidirectional switch IC1-1 and control pin 6, bidirectional switch IC 1-2Control pin 5 and resistance R 9An end be connected resistance R 9Another termination bidirectional switch IC 1-2Output pin 4, power cathode and resistance R 8An end; Exclusive-OR gate (XOR gate) IC 2-3Another input pin 8 and resistance R 8The other end, diode D 4Negative pole, D 5Positive pole and aerotron BG 1Collecting electrode be connected; Diode D 4Positive pole and bidirectional switch IC 1-2Input pin 3 and resistance R 3An end join R 3Other end power connection positive pole; Aerotron BG 1Base stage and diode D 3And D 5Negative pole and wire fuse F 3An end be connected wire fuse F 3Another termination car light go out line interface X 5Aerotron BG 1Emitter and resistance R 5Serial connection back and bidirectional switch IC 1-1Output pin join; Exclusive-OR gate (XOR gate) IC 2-3Output pin 10 for this monitoring branch road the breakdown signal mouth, under turn-off, Exclusive-OR gate (XOR gate) IC 2-3Input pin 9 be " 0 ".Bidirectional switch IC 1-1, IC 1-2Control pin 5,6 this moment also be " 0 ", bidirectional switch IC 1-1, IC 1-2Turn-off, be considered as open circuit.The car light circuit just often, BG in the branch road 1Base stage, emitter and D 5After the parallel connection again and F 3To this section line resistance series connection of ground end, its total value again and R 8The total resistance and the R of back in parallel gained 3And D 4The series connection resistance compare still very little, so Exclusive-OR gate (XOR gate) IC 2-3Input pin 8 also be " 0 ", its output pin 10 output low levels " 0 ".And when open circuit fault appears in the car light circuit, F 3Very big to ground this section of end resistance, make Exclusive-OR gate (XOR gate) IC 2-38 pin be " 1 ", breakdown signal is promptly exported in output pin 10 output " 1 ".Under the state of turning on light, Exclusive-OR gate (XOR gate) IC 2-3Input pin 9 be " 1 ".Bidirectional switch IC 1-1, IC 1-2Conducting.The car light circuit just often, D 3By car light electric current, D 3Pressure drop make BG 1Conducting, power line voltage mainly falls at R 8On, make Exclusive-OR gate (XOR gate) IC 2-3Input pin 8 be " 1 ", 10 outputs " 0 " of its output pin.Herein, D 5Be for preventing BG 1Base stage and collecting electrode short circuit and being provided with.When open circuit fault appears in the car light circuit, D 3No pressure drop, BG 1End.This moment is because of bidirectional switch IC 1-2Conducting, 3,4 pin are equivalent to path, make Exclusive-OR gate (XOR gate) IC 2-3Input pin 8 become " 0 ", and then make its output pin 10 output breakdown signals " 1 ".In this branch road, diode D 4Just often play buffer action at the car light circuit, the defeated effect of flating pass electrifies during fault.R is set 9Purpose be disturbance rejection.In the present embodiment, the circuit structure of the right branch of total state fault monitoring circuit and principle of work and left branch are identical.And, in monitor of the present utility model, many such monitoring branch roads can be set according to actual needs.
In the observation circuit of the utility model monitor, the setting of wire fuse can be used to monitoring car lamp driver fault, and can play the effect of protection monitor, makes it not reason car light line short circuit and damages.
In the utility model, can find in time, exactly and handling failure in order to make chaufeur, adopted especially by the number demonstration and the sound light alarming circuit V of relatively judging circuit IV control and carried out alarm display, as shown in Figures 2 and 3, relatively the judging circuit IV is mainly imported and a door IC by 42 3(CD4081), impulse deviser and decade counter/distributing box IC 7(CD4017) constitute.Wherein, impulse deviser is by IC 6(NE555) and peripheral circuit form.Digital show and the sound light alarming circuit V mainly by locking/decoding/driver IC 8(CD4511), charactron, bidirectional switch IC 4-1, IC 4-2, IC 4-3(with IC 4-4Shared four bidirectional switch CD4066), LED 1, LED 2, musical film IC 5(9300) and loud speaker constitute.In the present embodiment, with door IC 3-1, IC 3-2, IC 3-3, IC 3-4An input pin 1,5,8,12 respectively with Exclusive-OR gate (XOR gate) IC 2-1, IC 2-2, IC 2-3, IC 2-4Output pin 3,4,10,11 be connected; With door IC 3-1, IC 3-2And IC 3-3, IC 3-4Another input pin 2,6 and 9,13 respectively with counting machine IC 7Q 1, Q 2End is connected.When car light circuit trouble free, though with door IC 3-1, IC 3-2And IC 3-3, IC 3-4And Q 1Or Q 2The bonded assembly input end is because of impulse deviser sum counter IC 7Effect and have high level successively, but because of Exclusive-OR gate (XOR gate) IC 2Each input end be low level, with door IC 3Each input end that joins with it also is low level, causes and door IC 3Each mouth output low level.When a certain car light circuit breaks down, as X 1---X 3Place car light circuit, the Exclusive-OR gate (XOR gate) IC of corresponding detection branch with it 2-1 Output pin 3 export promptly that high level is given and door IC 3-11 pin, cause IC 3-1Output pin 3 output high level, promptly export breakdown signal.By with door IC 3-1The high level of output will be sent to three places of digital demonstration and sound light alarming circuit V, i.e. A end, bidirectional switch IC 4-16 pin and IC 4-313 pin.The high level that is sent to the A end is transported to decoder IC 84 pin, make charactron demonstrate the numbering of faulty line.Simultaneously, the high level of A end also passes through R 18Make aerotron BG 5Conducting, thus make bidirectional switch IC 4-4Turn-off, the turn-off pulse producer is to counting machine IC 7Further input, rest on the fault numbering thereby charactron is shown.Meanwhile, send bidirectional switch IC to 4-1The high level of 6 pin makes IC 4-1Conducting, and make the expression faulty line be the LED of left side lamp driver 1Shinny (during starboard light line fault, by with door IC 3-2Or IC 3-4The high level that output pin transmits sends bidirectional switch IC to 4-212 pin, LED 2Shinny).In addition, send bidirectional switch IC to 4-3The high level of 13 pin makes musical film IC 5Must be electric, loud speaker is emitted melody thereupon.When other branch road of car light circuit breaks down, its relatively differentiate and the principle of work of alarm procedure to last similar.Also that is to say that when the car light circuit broke down, the monitor of present embodiment will illustrate faulty line numbering and orientation to chaufeur, and send audible alarm by alarm display elements such as charactron, light-emitting diode and loud speakers.
The fault monitoring circuit of the utility model monitor is not limited only to the form that turn-off observation circuit and total state observation circuit are set up in parallel simultaneously among the embodiment.In the utility model, can only constitute complete turn-off path monitoring instrument with comparing judging circuit and digital demonstration and sound light alarming circuit with the turn-off observation circuit among the embodiment (can increase a travel permit number).In like manner, also can only constitute complete total state path monitoring instrument with comparing judging circuit and digital demonstration and sound light alarming circuit with the total state observation circuit among the embodiment (can increase a travel permit number).This conversion of the present utility model can adapt to the needs of different user.

Claims (2)

1, automotive lighting path monitoring instrument has power interface, car light inlet wire interface, car light and goes out line interface, observation circuit and Display and Alarm Circuit, it is characterized in that observation circuit is by Exclusive-OR gate (XOR gate) integrated circuit, diode D 1, wire fuse F 1And resistance R 1, R 7Constitute, wherein an input end of Exclusive-OR gate (XOR gate) and car light inlet wire interface X 1, diode D 1Positive pole and resistance R 7An end be connected resistance R 7Other end power connection negative pole, another input end of Exclusive-OR gate (XOR gate) and the negative pole of diode D1, wire fuse F 1An end, resistance R 1An end be connected wire fuse F 1Another termination car light go out line interface X 3, resistance R 1Other end power connection positive pole, the mouth of Exclusive-OR gate (XOR gate) is connected with the input end of Display and Alarm Circuit.
2, automotive lighting path monitoring instrument has power interface, car light inlet wire interface, car light and goes out line interface, observation circuit and Display and Alarm Circuit, it is characterized in that observation circuit is by Exclusive-OR gate (XOR gate) integrated circuit, diode D 3, D 4, D 5, aerotron BG 1, wire fuse F 3, bidirectional switch IC 1-1, IC 1-2And resistance R 3, R 5, R 8, R 9Constitute, wherein an input end of Exclusive-OR gate (XOR gate) and car light inlet wire interface X 2, diode D 3Positive pole, bidirectional switch IC 1-1Input end and control end, bidirectional switch IC 1-2Control end and resistance R 9An end be connected resistance R 9Another termination bidirectional switch IC 1-2Mouth, power cathode and resistance R 8An end, another input end and the resistance R of Exclusive-OR gate (XOR gate) 8The other end, diode D 4Negative pole, D 5Positive pole and aerotron BG 1Collecting electrode be connected diode D 4Positive pole and bidirectional switch IC 1-2Input end and resistance R 3An end join R 3Other end power connection positive pole, aerotron BG 1Base stage and diode D 3And D 5Negative pole and wire fuse F 3An end be connected wire fuse F 3Another termination car light go out line interface X 5, aerotron BG 1Emitter and resistance R 5Serial connection back and bidirectional switch IC 1-1Mouth join, the mouth of Exclusive-OR gate (XOR gate) is connected with the input end of Display and Alarm Circuit.
CN 90214754 1990-07-11 1990-07-11 Monitoring instrument of vehicle lighting circuit Withdrawn CN2069814U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 90214754 CN2069814U (en) 1990-07-11 1990-07-11 Monitoring instrument of vehicle lighting circuit

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Application Number Priority Date Filing Date Title
CN 90214754 CN2069814U (en) 1990-07-11 1990-07-11 Monitoring instrument of vehicle lighting circuit

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CN2069814U true CN2069814U (en) 1991-01-23

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CN 90214754 Withdrawn CN2069814U (en) 1990-07-11 1990-07-11 Monitoring instrument of vehicle lighting circuit

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102616181A (en) * 2012-03-31 2012-08-01 丹东星光电器有限公司 Alarm device for various faults of signal lamp of automobile
CN103021200A (en) * 2012-12-28 2013-04-03 江苏科技大学 Device and method for diagnosing fault of traffic signal lamp and controlling machine of traffic signal lamp
CN103018613A (en) * 2011-09-21 2013-04-03 鸿富锦精密工业（深圳）有限公司 Line detection module and testing jig provided with same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103018613A (en) * 2011-09-21 2013-04-03 鸿富锦精密工业（深圳）有限公司 Line detection module and testing jig provided with same
CN102616181A (en) * 2012-03-31 2012-08-01 丹东星光电器有限公司 Alarm device for various faults of signal lamp of automobile
CN103021200A (en) * 2012-12-28 2013-04-03 江苏科技大学 Device and method for diagnosing fault of traffic signal lamp and controlling machine of traffic signal lamp

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