CN113459941A - Car intelligent headlamp self-adaptive system based on single chip microcomputer - Google Patents
Car intelligent headlamp self-adaptive system based on single chip microcomputer Download PDFInfo
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- CN113459941A CN113459941A CN202110815993.8A CN202110815993A CN113459941A CN 113459941 A CN113459941 A CN 113459941A CN 202110815993 A CN202110815993 A CN 202110815993A CN 113459941 A CN113459941 A CN 113459941A
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- chip microcomputer
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- 238000001514 detection method Methods 0.000 claims abstract description 39
- 238000005286 illumination Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 3
- 206010039203 Road traffic accident Diseases 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/314—Ambient light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
Abstract
The invention relates to a car intelligent headlamp self-adaptive system based on a single chip microcomputer. When meeting at night, the automobile lamplight is directly projected, so that the accurate identification of a driving road and the judgment and selection of the feasibility of the current road are difficult to realize, and traffic accidents are caused. The invention provides a car intelligent headlamp self-adaptive system based on a single chip microcomputer, which comprises the single chip microcomputer, a meeting detection module and a car headlamp driving module, wherein the meeting detection module and the car headlamp driving module are connected with the single chip microcomputer, and the single chip microcomputer is also connected with a high beam and a dipped headlight. The meeting detection module collects the illumination intensity of the opposite running vehicles in real time, the illumination intensity is large and compared with a set value, and the light of the lamp of the single chip microcomputer controller is turned on and turned off. The intelligent car headlamp self-adaptive system based on the single chip microcomputer provided by the invention reserves the performance of the traditional vehicle, and the advantages of the traditional vehicle are reserved. Meanwhile, intelligent optimization of the automobile is carried out. Reduces the fatigue of people in the driving process at night, and indirectly improves the safety factor of driving.
Description
Technical Field
The invention belongs to the field of car headlamps, and relates to a car intelligent headlamp adaptive system based on a single chip microcomputer.
Background
In recent years, with the development of automobile manufacturing industry, the automobile manufacturing cost is reduced year by year, automobiles become popular, so that people can live more freely, and a lot of troubles caused by traffic inconvenience are saved. However, as vehicles increase year by year, the traffic flow is increased continuously, and although people strictly obey the traffic laws, the government also performs a series of operations such as widening and rectifying roads, a large number of traffic accidents still occur every year. Especially, when a car is driven at night, the situation of the road in front cannot be well observed due to the direct lighting problem of the car lights which drive in opposite directions, when a high beam of the car is used for direct lighting, the accurate identification of the driving road and the judgment and selection of the feasibility of the current road are difficult, and how to improve the driving safety of the car when the car is driven at night becomes one of the key points of the research of the car industry.
Disclosure of Invention
1. The technical problem to be solved is as follows:
when meeting at night, the automobile lamplight is directly projected, so that the accurate identification of a driving road and the judgment and selection of the feasibility of the current road are difficult to realize, and traffic accidents are caused.
2. The technical scheme is as follows:
in order to solve the problems, the invention provides an intelligent car headlamp self-adaptive system based on a single chip microcomputer, which comprises a power supply, a single chip microcomputer, a meeting detection module and a car headlamp driving module, wherein the power supply is connected with a high beam and a low beam, the meeting detection module and the car headlamp driving module are connected with the single chip microcomputer, and the single chip microcomputer is also connected with the high beam and the low beam. The meeting detection module collects the illumination intensity of the opposite running vehicles in real time, the illumination intensity is large and compared with a set value, and the light of the lamp of the single chip microcomputer controller is turned on and turned off.
The meeting detection module is one of ultrasonic detection, laser radar detection, video acquisition and processing device detection, photoelectric detection and photoresistor detection.
In the photoresistor detection, the photosensitive sensor adds the voltage variation into the input pin of AD conversion chip through the change that detects light intensity, and after the conversion of analog quantity to digital quantity, according to the size of specific voltage variation numerical value, whether the singlechip judges the place ahead earlier has the meeting vehicle earlier, decides again whether the driving vehicle satisfies the meeting condition, then drives the headlight and carries out the conversion of light.
The single-chip microcomputer is a 51 single-chip microcomputer.
The automobile headlamp driving module is one of relay, triode driving and direct current voltage conversion driving.
Under the drive mode of the relay and the triode, the relay has two states of normally open and normally closed, when the two ends of the relay are connected with high level, the coil of the relay generates current, so that the armature moves and the static contact is attracted, the headlight is powered on, and the headlight starts to work. On the contrary, when the relay is not connected to the high level, the current of the coil of the relay is 0, and the moving contact and the fixed contact of the armature are separated, so that the headlight is not connected with the power supply, and the headlight stops working.
The headlamp control system further comprises a key control, and the key control realizes selection of an automatic mode and a manual mode of headlamp operation.
The single chip microcomputer further comprises a crystal oscillator module, and the crystal oscillator module provides clock signals for the single chip microcomputer.
The single chip microcomputer further comprises a reset module, and the reset module realizes the rerun of programs and is used for timely solving the problem of faults caused by the blockage inside the single chip microcomputer.
3. Has the advantages that:
the intelligent car headlamp self-adaptive system based on the single chip microcomputer provided by the invention reserves the performance of the traditional vehicle, and the advantages of the traditional vehicle are reserved. Meanwhile, intelligent optimization of the automobile is carried out. Reduces the fatigue of people in the driving process at night, and indirectly improves the safety factor of driving.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a diagram of a photoresistor detection.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in figure 1, the intelligent car headlamp self-adaptive system based on the single chip microcomputer comprises a power supply, the power supply is connected with a high beam and a low beam, the intelligent car headlamp self-adaptive system further comprises the single chip microcomputer, a meeting detection module and a car headlamp driving module, the meeting detection module and the car headlamp driving module are connected with the single chip microcomputer, and the single chip microcomputer is further connected with the high beam and the low beam. The meeting detection module collects the illumination intensity of the opposite running vehicles in real time, the illumination intensity is large and compared with a set value, and the light of the lamp of the single chip microcomputer controller is turned on and turned off.
The automobile in-process of traveling night, need can carry out the perception to the road, and meeting detection module gathers the information according to the information of gathering to the illumination intensity perception singlechip to the positional information of the vehicle that traveles in opposite directions, judges whether there is the car to pass opposite to the distance of traveling is perceived, and when the vehicle distance was nearer, the distance light that the vehicle was opened can influence the normal travel of opposite vehicle, just needs to convert vehicle light. Various operations on input information are realized through an internal program of the single chip microcomputer, and a corresponding driving device is controlled through an output instruction, so that light of a vehicle is converted, and a certain action instruction is completed.
The power supplies power to the whole system, the meeting detection module is used as the detection module of the whole system to collect the illumination intensity of the running vehicles in opposite directions in real time, and when the illumination intensity is large, the meeting detection module represents that the running vehicles in opposite directions arrive at the meeting position. The single chip microcomputer is used as a controller of the whole system, can complete processing of an input component, namely the meeting detection module, and can control the on and off of an output unit, namely the light.
The meeting detection module is one of ultrasonic detection, laser radar detection, video acquisition and processing device detection, photoelectric detection and photoresistor detection.
In one embodiment, the photoresistor is used for detection, the principle of the photoresistor is that the resistance of the internal resistor changes due to the change of the illumination intensity, the change of the resistance of the internal resistor can be judged through the change detection of the voltage values at two sides of the photoresistor, and then the change condition of the illumination intensity can be well mapped. When the vehicle is driven at night, all vehicles can turn on the light. When the distance between the vehicles driving in front of the vehicles running in opposite directions is long, the brightness irradiated by the lamplight is low, the illumination conversion detected by the photosensitive sensor is small, and no action is generated. When the vehicle is close, the intensity of light irradiation is very high, the change detected by the photoresistor is very obvious, the meeting condition is also met, the signal is sent to the single chip microcomputer, the high beam and the dipped headlight are driven to be converted, and the light self-adaption work of meeting is well completed. The photosensitive resistor principle is simple, the cost is lower, and the light detection for driving at night is more accurate.
As shown in fig. 2, the photosensitive sensor adds voltage variation to the input pin of the AD conversion chip by detecting the variation of light intensity, and after the conversion from analog quantity to digital quantity, the single chip microcomputer judges whether there is a vehicle meeting ahead according to the magnitude of the specific voltage variation value, then determines whether the driving vehicle meets the meeting condition, and then drives the headlight to perform light conversion.
In one embodiment, the singlechip is 51 singlechip. The 51 singlechip is a common core control component, and because the 51 singlechip has multichannel input and output, the input pin of 51 singlechip can be real-time with the signal transmission to 51 singlechip that each sensor gathered to program the singlechip through C language, convenient and easy, C language uses extensively. Meanwhile, the internal program execution speed is high, and signals can be transmitted to the transmission signals in time according to input signals of the sensor in real time.
The automobile headlamp driving module is one of relay, triode driving and direct current voltage conversion driving. In one embodiment, the relay and the triode are used for driving, the relay has two states of normally open and normally closed, when two ends of the relay are connected with a high level, current is generated in a coil of the relay, so that moving and static contacts of an armature are attracted, the headlamp is powered on, and the headlamp starts to work. On the contrary, when the relay is not connected to the high level, the current of the coil of the relay is 0, and the moving contact and the fixed contact of the armature are separated, so that the headlight is not connected with the power supply, and the headlight stops working. The relay can be used to control the on or off of the light. The relay is simple to use and convenient to control.
The single chip microcomputer also comprises a crystal oscillator module, a crystal oscillator circuit is an indispensable part in a minimum system of the single chip microcomputer and provides a clock signal for the single chip microcomputer, and system frequency, working frequency and the like which are necessary for running in the single chip microcomputer are determined according to the size of the crystal oscillator. The crystal oscillator circuit provides timing for modules such as a timer, and functions such as calculation of the running time of the whole system are related to the timing.
The single chip microcomputer also comprises a RESET module, the RESET circuit is a part of a minimum system of the single chip microcomputer, the RESET circuit is externally connected with a key and connected with a RESET pin of the single chip microcomputer, when the system is down and the program is jammed during running, the program can be rerun through the key, and the problems of faults and the like caused by jamming inside the single chip microcomputer are solved in time.
In one embodiment, a key control is further provided, and the key can realize the selection of an automatic mode or a manual mode to determine the operation mode of the vehicle headlamp.
Claims (9)
1. The utility model provides a car intelligence headlight adaptive system based on singlechip, includes the power, power and high beam, passing lamp are connected its characterized in that: the automobile crossing detection module collects the illumination intensity of opposite running vehicles in real time, the illumination intensity is large and is compared with a set value, and the light of the lamp of the single chip microcomputer controller is turned on and turned off.
2. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in claim 1, wherein: the meeting detection module is one of ultrasonic detection, laser radar detection, video acquisition and processing device detection, photoelectric detection and photoresistor detection.
3. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in claim 2, wherein: in the photoresistor detection, the photosensitive sensor adds the voltage variation into the input pin of AD conversion chip through the change that detects light intensity, and after the conversion of analog quantity to digital quantity, according to the size of specific voltage variation numerical value, whether the singlechip judges the place ahead earlier has the meeting vehicle earlier, decides again whether the driving vehicle satisfies the meeting condition, then drives the headlight and carries out the conversion of light.
4. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in claim 1, wherein: the single-chip microcomputer is a 51 single-chip microcomputer.
5. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in claim 1, wherein: the automobile headlamp driving module is one of relay, triode driving and direct current voltage conversion driving.
6. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in claim 5, wherein: under the driving mode of the relay and the triode, the relay has two states of normally open and normally closed, when the two ends of the relay are connected with high level, the coil of the relay generates current to cause the moving contact and the static contact of the armature to be attracted, thereby leading the headlight to be switched on and the power supply to start the headlight to work,
on the contrary, when the relay is not connected to the high level, the current of the coil of the relay is 0, and the moving contact and the fixed contact of the armature are separated, so that the headlight is not connected with the power supply, and the headlight stops working.
7. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in any one of claims 1 to 6, wherein: the headlamp control system further comprises a key control, and the key control realizes selection of an automatic mode and a manual mode of headlamp operation.
8. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in any one of claims 1 to 6, wherein: the single chip microcomputer further comprises a crystal oscillator module, and the crystal oscillator module provides clock signals for the single chip microcomputer.
9. The intelligent car headlamp adaptive system based on the single chip microcomputer as claimed in any one of claims 1 to 6, wherein: the single chip microcomputer further comprises a reset module, and the reset module realizes the rerun of programs and is used for timely solving the problem of faults caused by the blockage inside the single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110815993.8A CN113459941A (en) | 2021-07-20 | 2021-07-20 | Car intelligent headlamp self-adaptive system based on single chip microcomputer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110815993.8A CN113459941A (en) | 2021-07-20 | 2021-07-20 | Car intelligent headlamp self-adaptive system based on single chip microcomputer |
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| CN113459941A true CN113459941A (en) | 2021-10-01 |
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| CN202110815993.8A Pending CN113459941A (en) | 2021-07-20 | 2021-07-20 | Car intelligent headlamp self-adaptive system based on single chip microcomputer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8531246D0 (en) * | 1984-12-25 | 1986-01-29 | Honda Motor Co Ltd | Light control apparatus |
| CN107139825A (en) * | 2017-04-24 | 2017-09-08 | 南京邮电大学 | Wireless intelligent light control system based on technology of Internet of things |
| CN208469664U (en) * | 2018-05-29 | 2019-02-05 | 江苏建筑职业技术学院 | A kind of automobile long-and-short distant light automatic adjustment Intelligent time delay system |
| CN110001509A (en) * | 2019-04-28 | 2019-07-12 | 苏州工业职业技术学院 | The far-near smooth lamp automatic beam change control system of automobile at night |
| CN110316046A (en) * | 2019-07-31 | 2019-10-11 | 常州轻工职业技术学院 | Headlight for vehicles intelligently switches far and near photosystem and switching method |
-
2021
- 2021-07-20 CN CN202110815993.8A patent/CN113459941A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8531246D0 (en) * | 1984-12-25 | 1986-01-29 | Honda Motor Co Ltd | Light control apparatus |
| CN107139825A (en) * | 2017-04-24 | 2017-09-08 | 南京邮电大学 | Wireless intelligent light control system based on technology of Internet of things |
| CN208469664U (en) * | 2018-05-29 | 2019-02-05 | 江苏建筑职业技术学院 | A kind of automobile long-and-short distant light automatic adjustment Intelligent time delay system |
| CN110001509A (en) * | 2019-04-28 | 2019-07-12 | 苏州工业职业技术学院 | The far-near smooth lamp automatic beam change control system of automobile at night |
| CN110316046A (en) * | 2019-07-31 | 2019-10-11 | 常州轻工职业技术学院 | Headlight for vehicles intelligently switches far and near photosystem and switching method |
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Application publication date: 20211001 |
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