CN205239298U - Full -automatic light auto -change over device of safe driving at night - Google Patents
Full -automatic light auto -change over device of safe driving at night Download PDFInfo
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- CN205239298U CN205239298U CN201521137825.4U CN201521137825U CN205239298U CN 205239298 U CN205239298 U CN 205239298U CN 201521137825 U CN201521137825 U CN 201521137825U CN 205239298 U CN205239298 U CN 205239298U
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Abstract
The utility model relates to a full -automatic light auto -change over device of safe driving at night, comprises a processo, the treater is connected with storage chip, storage chip connects the camera module that sets up at the car front end, the camera module includes the camera driver circuit of camera and drive camera, the treater is still connected the car light and is switched control circuit, the car light switches control circuit to be connected with the far -reaching headlamp and the passing lamp of car respectively, this novel can according to the car light luminance of opposite vehicle judge its division be far -reaching headlamp or passing lamp, and then carry out corresponding far and near light switching to own vehicle, the vehicle that the messenger had installed this device can switch to the short -distance beam from the distance light automatically in the car excessively of meeting, can effectual reduction the distance light caused in because of the meeting accident, and the utility model discloses automatic light auto -change over device is more accurate than the present device that adopts photosensitive resistance to go on judging, influenced by night and fog, and it is more accurate to judge, is the full -automatic light auto -change over device of a suitable popularization.
Description
Technical field
The utility model relates to a kind of night safe driving Full-automatic lamp light shifter, belongs to automotive electronics dressPut technical field.
Background technology
Along with improving constantly of economy, China's automobile pollution rises just year by year, and the thing followed is tighterHeavy driving safety problem. When night running, driver can open high beam conventionally to increase the visual field of oneselfScope, but automobile front should be switched to dipped headlights in two car intersections, while overtaking other vehicles, this has just increased greatlyDriver's driving fatigue. For alleviating driver's driving fatigue, long-and-short distant light self-checking device meet the tendency andRaw, still, long-and-short distant light self-checking device only moves in the time of automobile meeting at present, and great majority adopt lightQuick material detects light intensity, and as photo resistance, photodiode etc., and its temperature influence is large, responseSpeed is slow, physical property is poor. When night, automobile turning travelled, car bulb is by moving on to roadside in road,If now do not switch to dipped headlights, driver will not see road surface nearby, easily cause erroneous judgement.
Utility model content
The technical problems to be solved in the utility model is: for overcoming the problems referred to above, provide a kind of judgement accurately fastThe night safe driving Full-automatic lamp light shifter of speed.
The utility model solves the technical scheme that its technical problem adopts:
A kind of night safe driving Full-automatic lamp light shifter, comprises processor, and described processor is connected withStorage chip, described storage chip connects the camera module that is arranged on automotive front end, described camera moduleThe webcam driver circuit that comprises camera and the described camera of driving, described processor also connects car light and switchesControl circuit, described car light control switching circuit is connected with high beam and the dipped headlights of automobile respectively.
Preferably, described processor is also connected with usb circuit.
Preferably, described processor is also connected with TF interface circuit.
Preferably, described processor is also connected with TFT output circuit.
Preferably, described usb circuit comprises USB chip, the second pin of described USB chip andThree pins are connected to described processor, and the 4th pin of described USB chip and the 5th pin are connected to onePoint in parallel, the described first point ground connection in parallel, the first pin of the described first point in parallel and described USB chipBetween be parallel with capacitor C 1, capacitor C 2, voltage-stablizer U1, have polar capacitor C3 and capacitor C 4, described electric capacityOne end of C4 is connected to external power supply VCC.
Preferably, described webcam driver circuit comprises OV7670 chip, the AVDD of described OV7670 chipPin is connected to the 5th pin of voltage-stablizer U1 by resistance R 1, the 5th pin of described voltage-stablizer U5 also outsideConnect 2.8V power supply, described AVDD pin is also connected to one end of capacitor C 21, another of described capacitor C 21End ground connection, the DOVDD pin of described OV7670 chip is connected to the of described voltage-stablizer U1 by resistance R 2Five pins, described DOVDD pin is also connected to one end of capacitor C 11, another termination of described capacitor C 11Ground, the two ends of described capacitor C 11 are parallel with capacitor C 10, the external 3.3V of the first pin of described voltage-stablizer U1Power supply, the 3rd pin of described voltage-stablizer U1 is connected with its first pin, and first of described voltage-stablizer U1 drawsPin is connected to a point in parallel of capacitor C 22 and capacitor C 23, and the 5th pin of described voltage-stablizer U1 also connectsTo one end of capacitor C 25, the 4th pin of described voltage-stablizer U1 is connected to one end of capacitor C 24, described electricityThe other end that holds C25 and capacitor C 24 is all connected to another point in parallel of described capacitor C 22 and capacitor C 23And ground connection, the DVDD end of described OV7670 chip is connected to the 5th pin of voltage-stablizer U2, described voltage stabilizingThe first pin of device U2 connects external 2.8V power supply, and the first pin of described voltage-stablizer U2 is also by capacitor C 6Be connected to earth terminal, the 3rd pin of described voltage-stablizer U2 is connected with its first pin, described voltage-stablizer U2The second pin be connected to earth terminal, the 4th pin of described voltage-stablizer U2 is connected to ground connection by capacitor C 7End, the 5th pin of described voltage-stablizer U2 is also connected to earth terminal by capacitor C in parallel 8 and capacitor C 9.
The beneficial effects of the utility model are: the utility model can be taken described camera by processorThe image of front side is processed, and in the time judging that brightness is inadequate, can automatically open car light, and also can rootWhat judge according to the vehicle lamp brightness of opposite vehicle that it opens is high beam or dipped headlights, and then own vehicle is carried outCorresponding distance-light switches, and the vehicle that has made to install the utility model device can be in the car excessively of meeting automaticallyBe switched to dipped beam from distance light, can effectively reduce the accident causing because of distance light in meeting, and the utility modelThe device that automatic light switching device shifter judges than existing employing photo resistance is more accurate, can not be subject to blackNight and fog impact, it is more accurate to judge, is a kind of Full-automatic lamp light shifter of applicable popularization.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is embodiment of a kind of night safe driving Full-automatic lamp light shifter described in the utility modelStructured flowchart;
Fig. 2 is the circuit diagram of usb circuit described in the utility model;
Fig. 3 is the circuit diagram of processor described in the utility model;
Fig. 4 is the partial circuit figure of webcam driver circuit described in the utility model;
Fig. 5 is the partial circuit figure of webcam driver circuit described in the utility model;
Fig. 6 is the partial circuit figure of webcam driver circuit described in the utility model;
Fig. 7 is the flow chart of the utility model method.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now. These accompanying drawings are showing of simplificationIntention, only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows and the utility modelRelevant formation.
Embodiment 1
Described in the utility model a kind of night safe driving Full-automatic lamp light shifter as shown in Figure 1, bagDraw together processor, described processor can adopt existing applicable various signal processors, specifically carries out as requiredSelect, adopt in the present embodiment C8051F series monolithic, as shown in Figure 3, described processor is connected withStorage chip, described storage chip connects the camera module that is arranged on automotive front end, and described storage chip is usedIn the image that stores described camera module shooting, described in comprising camera and drive, takes the photograph described camera moduleThe webcam driver circuit of picture head, described processor also connects car light control switching circuit, and described car light switchesControl circuit is connected with high beam and the dipped headlights of automobile respectively, and described car light control switching circuit can be controlled instituteState high beam and dipped headlights switches, the car that the utility model can be taken described camera by processorThe image in front is processed, and in the time judging that brightness is inadequate, can automatically open car light, and also can basisWhat the vehicle lamp brightness of opposite vehicle judged that it opens is high beam or dipped headlights, and then own vehicle is carried out to phaseThe distance-light of answering switches, made to install the utility model device vehicle can meeting cross car in automatically fromDistance light is switched to dipped beam, can effectively reduce the accident causing because of distance light in meeting, and the utility model certainlyThe device that moving light switching device shifter judges than existing employing photo resistance is more accurate, can not be subject to nightWith fog impact, it is more accurate to judge, is a kind of Full-automatic lamp light shifter of applicable popularization.
In a preferred embodiment, described processor is also connected with usb circuit.
In a preferred embodiment, described processor is also connected with TF interface circuit.
In a preferred embodiment, described processor is also connected with TFT output circuit.
In a preferred embodiment, as shown in Figure 2, described usb circuit comprises USB chip, instituteThe second pin and the 3rd pin of stating USB chip are connected to described processor, and the 4th of described USB chip drawsPin and the 5th pin are connected to first point in parallel, the described first point ground connection in parallel, described the first point in parallelAnd between the first pin of described USB chip, be parallel with capacitor C 1, capacitor C 2, voltage-stablizer U1, have polarity electricityHold C3 and capacitor C 4, one end of described capacitor C 4 is connected to external power supply VCC.
In a preferred embodiment, as shown in Figure 4, Figure 5 and Figure 6, described webcam driver circuit comprisesOV7670 chip, the AVDD pin of described OV7670 chip is connected to of voltage-stablizer U1 by resistance R 1Five pins, also external 2.8V power supply of the 5th pin of described voltage-stablizer U5, described AVDD pin is also connected toOne end of capacitor C 21, the other end ground connection of described capacitor C 21, the DOVDD pin of described OV7670 chipThe 5th pin that is connected to described voltage-stablizer U1 by resistance R 2, described DOVDD pin is also connected to electric capacityOne end of C11, the other end ground connection of described capacitor C 11, the two ends of described capacitor C 11 are parallel with capacitor C 10,The external 3.3V power supply of the first pin of described voltage-stablizer U1, the 3rd pin of described voltage-stablizer U1 and its firstPin connects, and the first pin of described voltage-stablizer U1 is connected to a point in parallel of capacitor C 22 and capacitor C 23,The 5th pin of described voltage-stablizer U1 is also connected to one end of capacitor C 25, and the 4th of described voltage-stablizer U1 drawsPin is connected to one end of capacitor C 24, and the other end of described capacitor C 25 and capacitor C 24 is all connected to described electricityAnother point in parallel and the ground connection of holding C22 and capacitor C 23, the DVDD end of described OV7670 chip connectsTo the 5th pin of voltage-stablizer U2, the first pin of described voltage-stablizer U2 connects external 2.8V power supply, described inThe first pin of voltage-stablizer U2 is also connected to earth terminal by capacitor C 6, the 3rd pin of described voltage-stablizer U2Be connected with its first pin, the second pin of described voltage-stablizer U2 is connected to earth terminal, described voltage-stablizer U2The 4th pin be connected to earth terminal by capacitor C 7, the 5th pin of described voltage-stablizer U2 is also by parallelCapacitor C 8 and capacitor C 9 be connected to earth terminal.
Embodiment 2
A kind of night safe driving Full-automatic lamplight changing method, as shown in Figure 7, comprises the following steps:
(1) view data by shooting of described camera module is stored in described storage chip, when describedProcessor busy, abandons this frame image data, and when described processor idle, described processor is from describedIn storage chip, read these data;
(2) described processor detects the mean flow rate of described view data, on average bright when described view dataWhen degree is greater than threshold value, be judged as brightness enough, do not need the lamp of driving;
(3) in the time that the mean flow rate of described view data is less than threshold value, be judged as brightly not, again sentenceThe disconnected convection current car light that has or not;
(4), as convection current car light detected, control described car light control switching circuit and open dipped headlights, as do not haveConvection current car light detected, control described car light control switching circuit and open high beam.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevantStaff can, not departing from the scope of this utility model technological thought, carry out various change completelyAnd amendment. The technical scope of this utility model is not limited to the content on description, must rootDetermine its technical scope according to claim scope.
Claims (6)
1. a night safe driving Full-automatic lamp light shifter, is characterized in that, comprises processor, instituteState processor and be connected with storage chip, described storage chip connects the camera module that is arranged on automotive front end,Described camera module comprises camera and drives the webcam driver circuit of described camera, described processorAlso connect car light control switching circuit, described car light control switching circuit respectively with high beam and the dipped beam of automobileLamp connects.
2. night safe driving Full-automatic lamp light shifter as claimed in claim 1, is characterized in that,Described processor is also connected with usb circuit.
3. night safe driving Full-automatic lamp light shifter as claimed in claim 1, is characterized in that,Described processor is also connected with TF interface circuit.
4. night safe driving Full-automatic lamp light shifter as claimed in claim 1, is characterized in that,Described processor is also connected with TFT output circuit.
5. night safe driving Full-automatic lamp light shifter as claimed in claim 2, is characterized in that,Described usb circuit comprises USB chip, and the second pin of described USB chip and the 3rd pin are connected toDescribed processor, the 4th pin of described USB chip and the 5th pin are connected to first point in parallel, instituteState the first point ground connection in parallel, between the described first point in parallel and the first pin of described USB chip, be parallel with electricityHold C1, capacitor C 2, voltage-stablizer U1, have polar capacitor C3 and capacitor C 4, one end of described capacitor C 4 connectsReceive external power supply VCC.
6. night safe driving Full-automatic lamp light shifter as claimed in claim 1, is characterized in that,Described webcam driver circuit comprises OV7670 chip, and the AVDD pin of described OV7670 chip passes through resistanceR1 is connected to the 5th pin of voltage-stablizer U1, also external 2.8V power supply of the 5th pin of described voltage-stablizer U5,Described AVDD pin is also connected to one end of capacitor C 21, the other end ground connection of described capacitor C 21, described inThe DOVDD pin of OV7670 chip is connected to the 5th pin of described voltage-stablizer U1 by resistance R 2, described inDOVDD pin is also connected to one end of capacitor C 11, the other end ground connection of described capacitor C 11, described electric capacityThe two ends of C11 are parallel with capacitor C 10, and the external 3.3V power supply of the first pin of described voltage-stablizer U1 is described steadyThe 3rd pin of depressor U1 is connected with its first pin, and the first pin of described voltage-stablizer U1 is connected to electric capacityA point in parallel of C22 and capacitor C 23, the 5th pin of described voltage-stablizer U1 is also connected to capacitor C 25One end, the 4th pin of described voltage-stablizer U1 is connected to one end of capacitor C 24, described capacitor C 25 and electric capacityThe other end of C24 is all connected to another point in parallel and ground connection of described capacitor C 22 and capacitor C 23, described inThe DVDD end of OV7670 chip is connected to the 5th pin of voltage-stablizer U2, the first pin of described voltage-stablizer U2Connect external 2.8V power supply, the first pin of described voltage-stablizer U2 is also connected to earth terminal by capacitor C 6,The 3rd pin of described voltage-stablizer U2 is connected with its first pin, and the second pin of described voltage-stablizer U2 connectsTo earth terminal, the 4th pin of described voltage-stablizer U2 is connected to earth terminal by capacitor C 7, described voltage-stablizerThe 5th pin of U2 is also connected to earth terminal by capacitor C in parallel 8 and capacitor C 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137825.4U CN205239298U (en) | 2015-12-31 | 2015-12-31 | Full -automatic light auto -change over device of safe driving at night |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137825.4U CN205239298U (en) | 2015-12-31 | 2015-12-31 | Full -automatic light auto -change over device of safe driving at night |
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| CN205239298U true CN205239298U (en) | 2016-05-18 |
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| CN201521137825.4U Expired - Fee Related CN205239298U (en) | 2015-12-31 | 2015-12-31 | Full -automatic light auto -change over device of safe driving at night |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539274A (en) * | 2015-12-31 | 2016-05-04 | 南通华腾电子科技有限公司 | Full-automatic lamplight switching device and method for safe driving at night |
| CN107458299A (en) * | 2017-08-04 | 2017-12-12 | 奇瑞汽车股份有限公司 | Vehicle light control method, device and computer-readable recording medium |
-
2015
- 2015-12-31 CN CN201521137825.4U patent/CN205239298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539274A (en) * | 2015-12-31 | 2016-05-04 | 南通华腾电子科技有限公司 | Full-automatic lamplight switching device and method for safe driving at night |
| CN107458299A (en) * | 2017-08-04 | 2017-12-12 | 奇瑞汽车股份有限公司 | Vehicle light control method, device and computer-readable recording medium |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20181231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |