CN207106329U - A kind of automobile meeting lighting control circuit based on photo resistance - Google Patents
A kind of automobile meeting lighting control circuit based on photo resistance Download PDFInfo
- Publication number
- CN207106329U CN207106329U CN201720612022.2U CN201720612022U CN207106329U CN 207106329 U CN207106329 U CN 207106329U CN 201720612022 U CN201720612022 U CN 201720612022U CN 207106329 U CN207106329 U CN 207106329U
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- China
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- resistance
- chip microcomputer
- mouths
- photo resistance
- pin
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- Expired - Fee Related
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of automobile meeting lighting control circuit based on photo resistance, including light detection part, control section and display portion are formed, and wherein photo resistance L1 is placed in the middle part of the roof of automobile, and photo resistance L2 is placed in automobile A column.The signal detected using the specific position of photo resistance, single-chip microcomputer processing is inputed into stable low and high level by circuit conversion, so as to realize the switching of far/near lamplight of automobile, have the advantages that simple and convenient, economic and practical and be easy to popularization.
Description
Technical field
The utility model belongs to signal detection automation field, and in particular to a kind of automobile meeting based on photo resistance
Light Control Unit.
Background technology
During meeting at night, because driver can not use long-and-short distant light to specification, other driver is caused to be dazzle the eyes
And actual traffic conditions can not be seen clearly, cause the generation of traffic accident.Therefore, a kind of practical automobile meeting light is designed
Control circuit is very necessary.
The content of the invention
The purpose of this utility model is：For above-mentioned problem, there is provided one kind control it is accurate, simple in construction, into
This relatively low automobile meeting lighting control circuit.
Technical scheme is used by the utility model solves its technical problem：A kind of automobile meeting based on photo resistance
Light Control Unit, it is made up of light detection part, control section and display portion.
Light detection part is made up of photo resistance and interlock circuit.Photo resistance L1 is placed in the middle part of the roof of automobile, its
One end is grounded, and the other end is connected simultaneously with single-chip microcomputer P1.2 mouths and resistance R4；Photo resistance L2 is placed in automobile A column, one termination
Ground, the other end are connected simultaneously with single-chip microcomputer P1.1 mouth and resistance R3.In addition, resistance R3 is connected with L2 and+5V power supplys respectively, resistance
R4 is connected with L1 and+5V power supplys respectively.
Control section is made up of STC89C51 single-chip microcomputers, solid-state relay, control keyboard and interlock circuit.Wherein, monolithic
The P1.1 mouths of machine are connected simultaneously with photo resistance L2 and resistance R3；Single-chip microcomputer P1.2 mouths are connected with photo resistance L1 and resistance R4；
Single-chip microcomputer P1.3 mouths are connected with resistance R1, and single-chip microcomputer P1.4 mouths are connected with resistance R5, the P1.5 mouths of single-chip microcomputer and resistance R6 and are pressed
Key K1 is connected simultaneously.In addition, triode V1 base stages are connected by resistance R1 with single-chip microcomputer P1.3 mouths, V1 colelctor electrodes and+5V power supplys
Connection, V1 emitter stages are connected with solid-state relay SSR1 pin 1；Triode V2 base stages pass through resistance R5 and single-chip microcomputer P1.4 mouths
Connection, V1 colelctor electrodes are connected with+5V power supplys, and V1 emitter stages are connected with solid-state relay SSR2 pin 1.Solid-state relay SSR1
Pin 2 be grounded, pin 3 connects+12V power supplys, and pin 4 is grounded by high beam G1；Solid-state relay SSR2 pin 2 is grounded,
Pin 3 connects+12V power supplys, and pin 4 is grounded by dipped headlight G2.Finally, control button K1 one end is grounded, and the other end passes through resistance
R6 is connected with+5V power supplys, while is connected with single-chip microcomputer P1.5.
Display module uses 0.96 cun of OLED display screen, and the screen is connected with single-chip microcomputer relevant pins.
The beneficial effects of the utility model are：
The signal detected using the specific position of photo resistance, inputed to by circuit conversion into stable low and high level
Single-chip microcomputer processing, so as to realize the switching of far/near lamplight of automobile.The circuit have it is simple and convenient, economic and practical and be easy to popularization etc.
Advantage.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device.
Embodiment
The utility model content is further explained below in conjunction with the accompanying drawings.
In Fig. 1, L1 and L2 are photo resistance 5516, and SSR1 and SSR2 are dd10a solid-state relays.
System provides the user automatic switchover and manual switching pattern.By pressing control button K1, can select effectively
Switch mode.If selecting automatic switchover mode, system automatically adjusts far/near lamplight of automobile according to ambient；If select hand
Dynamic model formula, then system switched over according to manual ringing.Now, display screen can indicate current switch mode and far and near light
Working condition.Automatic switchover mode is specifically described below.
L1 is located in the middle part of the roof of automobile, for detecting natural light and street lamp；L2 is placed in automobile A column, for detecting opposite
Carry out the specific car light situation of car.When each sensor detect it is bright and clear when, single-chip microcomputer P1.1 and P1.2 mouth are low level,
Otherwise it is high level；Single-chip microcomputer realizes the switching of mode of operation according to P1.5 mouth low and high levels.
During automobile night driving, it is as follows to run into actual conditions operation：When L1 detects ambient abundance, now L1
Resistance is smaller, and single-chip microcomputer P1.2 mouths are low level, and control single chip computer P1.4 mouths output high level, then SSR2 conductings, make automobile
Open dipped headlight；When L1 detects insufficient light, now P1.2 mouths are high level, then the high electricity of control single chip computer P1.3 mouths output
Flat, now SSR1 is turned on, and opens high beam.
When meeting at night, following two situations are considered.First, the situation of ambient light deficiency is considered, now P1.3 mouths are
High level, automobile open high beam.If L2 both end voltages are relatively low, show that other side Lai Che opens high beam, now by single-chip microcomputer
P1.4 mouths and P1.3 mouths export high level in turn, to warn other side Lai Che, P1.4 mouths hereafter are exported into low level again, make automobile
Open dipped headlight and carry out meeting, when L2 both end voltages reach high value again, show that meeting terminates, now reopen remote
Light lamp.If L2 both end voltages are higher, show that other side's meeting opens is dipped headlight, and single-chip microcomputer P1.4 mouths now are exported into high level,
Dipped headlight is opened, when L2 both end voltages reach high value again, shows that meeting terminates, automobile reopens high beam.
Secondly, the sufficient situation of ambient light is considered, now P1.4 is high level, and automobile opens dipped headlight.If L2 both ends
Voltage is relatively low, shows that other side Lai Che opens high beam, single-chip microcomputer P1.3 mouths and P1.4 mouths are now exported into high level in turn, given
After other side Lai Che proposes warning, dipped headlight pattern is turned again to.If L2 both end voltages are higher, show that other side's meeting opens is dipped beam
Lamp, then current dipped headlight is kept to illuminate.
Claims (6)
1. a kind of automobile meeting lighting control circuit based on photo resistance, including light detection part, control section and display
Part is formed, and wherein light detection part is made up of two 5516 type photo resistance, and photo resistance L1 is placed in the roof of automobile
Portion, photo resistance L2 are placed in automobile A column, and control section is made up of STC89C51 single-chip microcomputers, dd10a solid-state relays and button,
Display portion is 0.96 cun of OLED display screen.
2. circuit according to claim 1, it is characterised in that：Photo resistance L1 its one ends are grounded, the other end and single-chip microcomputer
P1.2 mouths and resistance R4 are connected simultaneously；Photo resistance L2 its one ends are grounded, and the other end and single-chip microcomputer P1.1 mouth and resistance R3 are simultaneously
Connection；In addition, resistance R3 is connected with L2 and+5V power supplys respectively, resistance R4 is connected with L1 and+5V power supplys respectively.
3. circuit according to claim 1, it is characterised in that：The P1.1 mouths of single-chip microcomputer and photo resistance L2 and resistance R3 are same
When connect, single-chip microcomputer P1.2 mouths are connected with photo resistance L1 and resistance R4, and single-chip microcomputer P1.3 mouths are connected with resistance R1, single-chip microcomputer
P1.4 mouths are connected with resistance R5, and the P1.5 mouths of single-chip microcomputer are connected simultaneously with resistance R6 and button K1.
4. circuit according to claim 1, it is characterised in that：Triode V1 base stages pass through resistance R1 and single-chip microcomputer P1.3 mouths
Connection, V1 colelctor electrodes are connected with+5V power supplys, and V1 emitter stages are connected with solid-state relay SSR1 pin 1；Triode V2 base stages are led to
Cross resistance R5 to connect with single-chip microcomputer P1.4 mouths, V1 colelctor electrodes are connected with+5V power supplys, and V1 emitter stages draw with solid-state relay SSR2's
Pin 1 connects.
5. circuit according to claim 1, it is characterised in that：Solid-state relay SSR1 pin 2 is grounded, and pin 3 connects+
12V power supplys, pin 4 are grounded by high beam G1；Solid-state relay SSR2 pin 2 is grounded, and pin 3 connects+12V power supplys, pin 4
It is grounded by dipped headlight G2.
6. circuit according to claim 1, it is characterised in that：Control button K1 one end is grounded, and the other end passes through resistance R6
It is connected with+5V power supplys, while is connected with single-chip microcomputer P1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720612022.2U CN207106329U (en) | 2017-05-29 | 2017-05-29 | A kind of automobile meeting lighting control circuit based on photo resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720612022.2U CN207106329U (en) | 2017-05-29 | 2017-05-29 | A kind of automobile meeting lighting control circuit based on photo resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207106329U true CN207106329U (en) | 2018-03-16 |
Family
ID=61594235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720612022.2U Expired - Fee Related CN207106329U (en) | 2017-05-29 | 2017-05-29 | A kind of automobile meeting lighting control circuit based on photo resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207106329U (en) |
-
2017
- 2017-05-29 CN CN201720612022.2U patent/CN207106329U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20190529 |