CN102076137A - Automatic dimming device for headlights of locomotive vehicle - Google Patents
Automatic dimming device for headlights of locomotive vehicle Download PDFInfo
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- CN102076137A CN102076137A CN2009102257118A CN200910225711A CN102076137A CN 102076137 A CN102076137 A CN 102076137A CN 2009102257118 A CN2009102257118 A CN 2009102257118A CN 200910225711 A CN200910225711 A CN 200910225711A CN 102076137 A CN102076137 A CN 102076137A
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Abstract
The invention relates to an automatic dimming device for headlights of a locomotive vehicle, which comprises a voltage-stabilizing circuit 1, a singlechip circuit 2 (a singlechip comprises an internal memory and an A/D converter), a signal transmitting and receiving circuit 3, a detecting circuit 4, a safety prompting circuit 5, a dimming executing circuit 6 and a gradual dimming controlling circuit 7. The automatic dimming device is positioned inside an engine hood and a cab of the locomotive vehicle during the use, and is connected with an original ignition switch 11, a dimming switch 12, a low-beam light 8 and a high-beam light 9 inside the vehicle. When two locomotive vehicles additionally equipped with the device meet each other at nights, as long as the low-beam light of one party is turned on, the other party who breaks rules to turn on the high-bean light is forced to automatically use the low-beam light. When the low-beam light is used, if a passing or emergency signal of the vehicle is required to be turned on, the high-beam light can still be used intermittently. After vehicle crossing, the high-beam light is recovered automatically. In this way, accidents caused by dizzy high-beam light in vehicle crossing can be prevented, so that safe driving can be ensured. The device is convenient to install, and operates reliably without affecting other functions of the locomotive vehicle.
Description
Technical field
The present invention relates to a kind of used circuit of illumination optical apparatus of motor vehicles, specifically, relate to a kind of automatic device for changing light of front headlight of motor vehicle.
Background technology
Front headlight of motor vehicle possesses distance light, two kinds of illumination functions of dipped beam.Motor vehicle is at night during cruising, the general high beam that adopts throws light on, and when two car intersections, dazzle the eyes for preventing distance light, avoid consequent traffic safety accident, national communication portion is about the motor vehicle security regulations: during motor-driven vehicle meeting at night, apart outside 150M, the meeting both sides just should initiatively become headlamp the dipped headlights illumination, because motor vehicle is far away, the conversion of dipped beam is manually to be handled by the driver, because of driver's carelessness, quality is low, reasons such as malice unlatching, current mobility car night safe meeting is unsatisfactory, dazzle the eyes the traffic accident that causes because of high beam night and happen occasionally, be unfavorable for safe driving.
Summary of the invention
In order to solve existing motor vehicle causes traffic accident because of long switch-on distance light when meeting at night problem, purpose of the present invention, be to provide a kind of motor vehicle that forces that high beam is automatically changeb to the automatic device for changing light of front headlight of motor vehicle of dipped headlights, thus the safe driving when guaranteeing to meet at night.
Solution of the present invention is as follows.Referring to Fig. 1 electric functional-block diagram of the present invention, the present invention is by voltage stabilizing circuit 1, single chip circuit 2, signal transceiver circuit 3, testing circuit 4, safety instruction circuit 5, become light executive circuit 6, progressive change light control circuit 7 connects to form, wherein the output 101 of voltage stabilizing circuit 1 is connected respectively to single chip circuit 2, the working power end of signal transceiver circuit 3 is to provide dc supply, the FPDP of single chip circuit 2 links to each other with control port with the FPDP of signal transceiver circuit 3 respectively with control port, the control port of single chip circuit 2 respectively with become light executive circuit 6, progressive change light control circuit 7, the control port of testing circuit 4 and safety instruction circuit 5 joins, the output of testing circuit 4, one end links together with the dipped headlights current input terminal that becomes light executive circuit 6, the other end links to each other with the input of progressive change light control circuit 7, and the working power end of testing circuit 4 is connected with the working power end that becomes light executive circuit 6 and the working power end of progressive change light control circuit 7.
The present invention with foregoing circuit structure is when installing and using, the power input of its voltage stabilizing circuit 1 is connected with the movable contact head end 111 of motor vehicle ignition switch 11, an output of above-mentioned testing circuit 4 is connected with the power output end of dipped headlights 8 and the stationary contact 122 of motor vehicle dimmer switch 12 with the end that connects altogether that becomes light executive circuit 6 dipped headlights current input terminals, with above-mentioned testing circuit 4, the working power end that becomes light executive circuit 6 and progressive change light executive circuit 7 is connected with the power input of dipped headlights 8 with high beam 9, be connected on then on the stationary contact 112 of motor vehicle ignition switch 11, the output that becomes light executive circuit 6 and progressive change light executive circuit 7 follows another stationary contact 123 of motor vehicle dimmer switch 12 to be connected; Simultaneously, follow the power output end of high beam 9 to be connected with the end that connects altogether of the input of progressive change light control circuit 7 another output of testing circuit 4.Main frame of the present invention can be installed in the motor vehicle engine lid or the driver's cabin gap, only needs associated tracks with headlight in self lead and the motor vehicle fuse box etc. to be connected by above-mentioned annexation and gets final product.LED light in the safety instruction circuit 5 then can be drawn with lead separately and is connected to bridge instrumentation dish and place, front windshield slit, like this with regard to unlikely damage instrument panel of motor vehicle.
Operation principle of the present invention is as follows.The prerequisite that operation principle is described is all to have installed automatic device for changing light of front headlight of the present invention on two motor vehicles that meet at night.Connect motor vehicle ignition switch 11, just to voltage stabilizing circuit 1 power supply, the output 101 of voltage stabilizing circuit 1 provides stable dc supply to single chip circuit 2, signal transceiver circuit 3 to power supply 10 in the motor vehicle car.In the time of when driving, need opening dipped headlights 8, the moving contact of motor vehicle dimmer switch 12 is beaten to 122 dipped beam shelves from 121 neutral gears.Power supply 10 is given dipped headlights 8 power supplies and it is opened bright in the car, the interior power supply 10 of car this moment also acts on the control end of single chip circuit 2, be judged as high level through single chip circuit 2, output signal to signal transceiver circuit 3, make its varying optical signal, and after some seconds, stopping emission under the running of single chip circuit 2 internal processes to the other side's motor vehicle emission certain frequency of meeting.When needs are opened high beam 9, then with 12 dozens of dimmer switches to 123 distance light shelves, so in the car power supply 10 to become light executive circuit 6, progressive change light control circuit 7 provides dc supply, and simultaneously through the field effect transistor V2 of progressive change light control circuit 7 to high beam 9 power supplies and open bright high beam 9.Meanwhile, the signal that progressive change light control circuit 7 is opened high beam acts on single chip circuit 2 and through being judged as high level, after the time (generally can be set at 0.2 second) that its internal processes is set, if this high level is still constant, single chip circuit 2 just outputs signal to signal transceiver circuit 3, signal transceiver circuit 3 is in receives the varying optical signal state.Otherwise, then return initial state, this time-delay of 0.2 second receives varying optical signal, can guarantee motor vehicle whenever all can open off and on high beam 9 (as beat overtake other vehicles and promptly during warning light).After signal transceiver circuit 3 is in the varying optical signal that the other side's motor vehicle of receiving the varying optical signal state and receiving meeting sends, the control end of single chip circuit 2 is sent signal and is given the input that becomes light executive circuit 6, make the field effect transistor V1 conducting that becomes in the light executive circuit 6, so it is bright that dipped headlights 8 opens, single chip circuit 2 starts the progressive change light path preface of time-delay simultaneously, promptly the series of pulses that increased gradually from its control end output pulse width in some seconds is given the input of progressive change light control circuit 7, be transformed into high beam voltage through progressive change light control circuit 7 from Nv (Nv into the motor vehicle car in the supply voltage of power supply 10) to OV, this voltage give high beam 9 make its by bright to dark.Single chip circuit 2 is carried out progressive change light path preface, and whole change photoreduction process can be made as 15S, and wherein to become OV by Nv be 5S to the voltage on the high beam 9, and ov holds time and is 10S; Single chip circuit 2 is sent control signal discontinuously and is given safety instruction circuit 5 during this, makes its contained LED light be flicker shape (light and shade alternately), to point out as auxiliary security.When high beam 9 complete deepenings and after (15S when being whole meeting becomes photoreduction process finish after) through 10 seconds, the control end of single chip circuit 2 is sent signal and is given the output that becomes light executive circuit 6 and progressive change light control circuit 7, field effect transistor V1 is ended, the V2 conducting, so dipped headlights 8 extinguishes, high beam 9 opens bright, and motor vehicle recovers the high beam illumination again.Simultaneously because single-chip microcomputer of the present invention contains internal memory, thereby system can write down, preserve, delete multiple information as requested, according to establishing the program requirement in the single chip circuit 2, signal transceiver circuit 3 is except that transmitting and receiving the varying optical signal, can also transmit and receive other signal, as: self encrypted message that can will be retained in after receiving cue in the memory is launched.
The invention has the beneficial effects as follows: the purpose that 1. reaches both sides' civilization meeting by mandatory change light.Because this system adopts single chip machine controlling circuit, this system's everything is by single-chip microcomputer plug-in commander, when the motor vehicle that this system is housed is opened high beam and travelled, after receiving varying optical signal, single-chip microcomputer is carried out progressive change light path preface, and dipped beam opens bright, and distance light extinguishes gradually, become between the photophase (15S), under the program indication, motor vehicle can use high beam in intermittence ground, as: play overtake other vehicles lamp and urgent prompting, in addition, the fixing use high beam of motor vehicle.Can stop the part driver like this and be become after the light, recover rapidly again to use the high beam illumination, guarantee finishing of whole Vehicle during Crossing Event by adjusting headlamp beam switch.Simultaneously, significantly mandatory owing to being had by the change photoreduction process, help this motor vehicle and also initiatively become light.Reach the purpose of both sides' civilization meeting.2. can guarantee driver's driving at night safety.Motor vehicle was forced to become between the photophase, and dipped headlights is bright entirely, and high beam extinguishes gradually, and whole process vision nature does not have the sudden change sense, guarantees driver's driving at night safety.Safety instruction circuit 5 LED light that are arranged in driver's cabin simultaneously keep high brightness flicker, make safe aid prompting.3. easy to install.As previously mentioned, this device for changing light need not change the motor vehicle owned circuit when installing, and uses the own power supply of motor vehicle, and all operations is by the own headlight dimmer switch control of motor vehicle.When opening dipped headlights, this device for changing light can be launched varying optical signal, and when opening high beam, this dimmer can receive varying optical signal, and produces relevant action automatically, and is easy to use.4. have complete emission, reception and writing function.As previously mentioned, because single-chip microcomputer contains internal memory in the single chip circuit 2, its signal transceiver circuit 3 is except that can receiving the emission varying optical signal, can also receive or launch other signal, after receiving the special cue of sending in the external world, system can launch self encrypted message that is kept in the memory.Therefore, in certain area, if unified this device of installing of motor vehicle, external system can be by launching cue to motor vehicle, and according to specific self encrypted message that this motor vehicle emits its identity is discerned automatically, can make things convenient for the inspection work of functional department like this to this area's motor vehicle.
Description of drawings
Fig. 1 is an electric functional-block diagram of the present invention;
Fig. 2 is the schematic diagram of Fig. 1 a kind of physical circuit of the present invention.
Embodiment
Referring to Fig. 1 and Fig. 2.Voltage stabilizing circuit of the present invention (1) is made of integrated voltage stabilizer IC1, single chip circuit (2) is made of the single-chip microcomputer IC2 that contains internal memory and AD conversion, signal transceiver circuit (3) is made of radio receiving transmitting module IC3, testing circuit (4) resistance R 3, R4, R6, R7, R9, R10 connects to form, safety instruction circuit (5) is connected to form by LED resistance R 13, become light executive circuit (6) by field effect transistor V1 triode T1, resistance R 1, R2, R5 connects to form, and progressive change light control circuit (7) is by field effect transistor V2, triode T2, resistance R 8, R11, R12 connects to form.Wherein the output 101 of the integrated voltage stabilizer IC1 of voltage stabilizing circuit 1 is connected respectively to the VCC end of the single-chip microcomputer IC2 of single chip circuit 2, the VCC end of radio receiving transmitting module IC3, the GND port ground connection of the single-chip microcomputer IC2 of single chip circuit 2, R3 in IC2 input and the testing circuit 4, R4, R6, R7, R9, the end of R10 links to each other, all the other IC2 ports are imported with the data of radio receiving transmitting module IC3 respectively, output, transmitting-receiving conversion and control end, resistance R 8, R5, the end of R13 links to each other, the resistance R 5 of single chip circuit 2, R8 respectively with the triode T1 that becomes light executive circuit 6 progressive change light control circuits 7, the base stage of T2 is connected, the other end of resistance R 6 links to each other with the source electrode of the field effect transistor V1 that becomes light executive circuit 6 in the testing circuit 4, and the other end of resistance R 10 links to each other with field effect transistor V2 source electrode in the progressive change optical circuit 7 in the testing circuit 4.The resistance R 3 of testing circuit 4, R9 connect altogether end with hold connecting altogether of the resistance R 1 that becomes light executive circuit 6 and progressive change light control circuit 7, R11 be connected after, connect together with the power input of dipped headlights 8, high beam 9 and the stationary contact 112 of motor vehicle ignition switch 11 again.Another stationary contact 123 that connects end and motor vehicle dimmer switch 12 altogether of the drain electrode of field effect transistor V1, the V2 of change light executive circuit 6 and progressive change light control circuit 7 connects together.The model of IC1 among Fig. 2, IC2, IC3 and IC4 can adopt LM78L05, PIC16F676, STR-6 and LM358 respectively, and is all commercially available.
Fig. 2 embodiment circuit is when installing and using, the power input of its integrated voltage stabilizer IC1 is connected with the movable contact head end 111 of motor vehicle ignition switch 11, the end that connects altogether of resistance R 1, R3, R9, R11 is linked to each other with the power input of dipped headlights 8, high beam 9, fixed contact 112 with motor vehicle ignition switch 11 connects together then, with after the source electrode of field effect transistor V 1 in becoming light executive circuit 6 connects end altogether and the output of dipped headlights 8 links to each other, the stationary contact 122 with change stopping switch 12 connects together again with resistance R 6; The end that connects altogether of the field effect transistor V2 source electrode in the progressive change light control circuit 7 of resistance R 10 is linked to each other with the output of high beam 9; Another stationary contact end 123 that the drain electrode of field effect transistor V1, V2 is connected altogether end and dimmer switch 12 connects together.
Referring to Fig. 2.The interior power supply 10 of the motor vehicle car battery voltage EC of embodiment in the drawings is 12V, and the voltage of integrated voltage stabilizer IC1 output 101 is 5V.When driving the time need be opened dipped headlights, to dipped beam shelves 122, dipped headlights 8 opened bright with 12 dozens of dimmer switches, and this moment, single-chip microcomputer IC2 judged that its P-1 pin is a high level, and radio receiving transmitting module IC3 begins to launch the varying optical signal of 433MHZ, stops emission after 3 seconds.When need are opened high beam 9, with 12 dozens of dimmer switches to distance light shelves 123, so EC through field effect transistor V2 to high beam 9 power supplies and open bright.Meanwhile; single-chip microcomputer IC2 judges that its P-5 pin is a high level; 0.2 a second back radio receiving transmitting module IC3 then is initially located in the varying optical signal state that receives; otherwise just return initial state; the time-delay in this 0.2 second receives varying optical signal, can guarantee motor vehicle whenever can intermittently open high beam 9 (as beat overtake other vehicles and promptly during warning light).After radio receiving transmitting module IC3 is in reception varying optical signal state and receives the varying optical signal of 433MHZ, the P-3 pin of single-chip microcomputer IC2 is in high level, make the field effect transistor V1 conducting that becomes light executive circuit 6, so it is bright that dipped headlights 8 opens, single-chip microcomputer IC2 starts the progressive change light path preface of time-delay simultaneously, the i.e. series of pulses that P-6 pin output pulse width increases gradually in some second converts high beam voltage from 12V to OV to through T2, V2, this voltage give high beam 9 make they by bright to secretly.Whole change photoreduction process is 15s, and wherein to become OV by 12V be 5s to the voltage on the high beam 9, the OV 10S that holds time; Be forced to become in the photoreduction process, if the driver becomes high beam into dipped headlights earlier in 15S.Revert to high beam then again, at this moment, single-chip microcomputer will continue to finish progressive change photoreduction process; High level appears in this period P-4 pin discontinuously, and LED light is the flicker shape.When high beam 9 complete deepenings and through after 10 seconds kinds, IC2 makes by control pin P-3, P-5 that V1 ends, the V2 conducting, so dipped headlights 8 extinguishes, high beam 9 opens bright, and motor vehicle recovers far lighting again.Because single-chip microcomputer includes internal memory, system is according to the program requirement of single-chip microcomputer IC2, radio receiving transmitting module IC3 also can transmit and receive other signal except that transmitting and receiving the varying optical signal, and self encrypted message that both can will be kept at after receiving cue in the memory is launched.
Claims (2)
1. automatic device for changing light of front headlight of motor vehicle, it is characterized in that, it is by voltage stabilizing circuit (1), single chip circuit (2), signal transceiver circuit (3), testing circuit (4), safety instruction circuit (5), become light executive circuit (6), progressive change light control circuit (7) connects to form, wherein the output (101) of voltage stabilizing circuit (1) is connected respectively to single chip circuit (2), the working power end of signal transceiver circuit (3) is to provide dc supply, the FPDP of single chip circuit (2) links to each other with control port with the FPDP of signal transceiver circuit (3) respectively with control port, the control port of single chip circuit (2) respectively with become light executive circuit (6), progressive change light control circuit (7), the control port of testing circuit (4) and safety instruction circuit (5) joins, the output of testing circuit (4), one end links together with the dipped headlights current input terminal that becomes light executive circuit (6), the other end links to each other with the input of progressive change light control circuit (7), and the working power end of testing circuit (4) is connected with the working power end that becomes light executive circuit (6) and progressive change light control circuit (7).
2. automatic device for changing light of front headlight of motor vehicle according to claim 1, it is characterized in that, voltage stabilizing circuit (1) is made of integrated voltage stabilizer IC1, single chip circuit (2) is made of the single-chip microcomputer IC2 that contains internal memory and AD conversion, signal transceiver circuit (3) is made of radio receiving transmitting module IC3, testing circuit (4) resistance R 3, R4, R6, R7, R9, R10 connects to form, safety instruction circuit (5) is by LED, resistance R 13 connects to form, become light executive circuit (6) by field effect transistor V1 triode T1, resistance R 1, R2, R5 connects to form, and progressive change light control circuit (7) is by field effect transistor V2, triode T2, resistance R 8, R11, R12 connects to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102257118A CN102076137A (en) | 2009-11-23 | 2009-11-23 | Automatic dimming device for headlights of locomotive vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102257118A CN102076137A (en) | 2009-11-23 | 2009-11-23 | Automatic dimming device for headlights of locomotive vehicle |
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| Publication Number | Publication Date |
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| CN102076137A true CN102076137A (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102257118A Pending CN102076137A (en) | 2009-11-23 | 2009-11-23 | Automatic dimming device for headlights of locomotive vehicle |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0176615A1 (en) * | 1984-10-03 | 1986-04-09 | In-Kun Kim | Apparatus for controlling the light of the headlights of a vehicle |
| US5760546A (en) * | 1996-09-19 | 1998-06-02 | Navistar International Transportation Corp. | Dual dimmer control of headlamp high- and low-beams |
| CN1611385A (en) * | 2003-05-15 | 2005-05-04 | 赵立 | Intelligent dimming meaus for motor vehicle |
| CN1640721A (en) * | 2003-06-30 | 2005-07-20 | 赵立 | Automatic dimming device of front headlamp for motor vehicle |
| CN2927594Y (en) * | 2006-06-22 | 2007-07-25 | 赵立 | Automatic variator of head light for motor vehicle |
| CN101092122A (en) * | 2006-06-22 | 2007-12-26 | 赵立 | Automatic device for changing light of front headlight of motor vehicle |
| CN201590927U (en) * | 2009-11-23 | 2010-09-22 | 赵立 | Auto-dimming device for headlamp of motor vehicle |
-
2009
- 2009-11-23 CN CN2009102257118A patent/CN102076137A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0176615A1 (en) * | 1984-10-03 | 1986-04-09 | In-Kun Kim | Apparatus for controlling the light of the headlights of a vehicle |
| US5760546A (en) * | 1996-09-19 | 1998-06-02 | Navistar International Transportation Corp. | Dual dimmer control of headlamp high- and low-beams |
| CN1611385A (en) * | 2003-05-15 | 2005-05-04 | 赵立 | Intelligent dimming meaus for motor vehicle |
| CN1640721A (en) * | 2003-06-30 | 2005-07-20 | 赵立 | Automatic dimming device of front headlamp for motor vehicle |
| CN2927594Y (en) * | 2006-06-22 | 2007-07-25 | 赵立 | Automatic variator of head light for motor vehicle |
| CN101092122A (en) * | 2006-06-22 | 2007-12-26 | 赵立 | Automatic device for changing light of front headlight of motor vehicle |
| CN201590927U (en) * | 2009-11-23 | 2010-09-22 | 赵立 | Auto-dimming device for headlamp of motor vehicle |
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Application publication date: 20110525 |