CN204774910U - Vehicle device of adjusting luminance based on infrared light and visible light - Google Patents

Abstract

A vehicle dimming device based on infrared light and visible light. The utility model relates to the field of optoelectronics. There are technical problems such as intelligent dimming of vehicle lights in a row and high cost. The structural features include the first vehicle light: including a visible light detection device, which outputs an electrical signal; the second vehicle light: which includes an infrared light detection device, which outputs an electrical signal; a processing unit: receives an electrical signal and sends a control signal; a drive circuit: receives The control signal outputs the driving current; the motor connected with the driving circuit: also connected with the first vehicle light and/or the second vehicle light. The utility model is used for intelligently adjusting the lamp light of a vehicle.

Description

A vehicle dimming device based on infrared light and visible light

technical field

The utility model relates to the field of optoelectronics, in particular to a vehicle dimming device based on infrared light and visible light.

Background technique

Existing dimming devices for near and high beams of vehicles are manual pole-adjusting devices, and most of them cannot perform automatic dimming and automatically adjust the irradiation position of the vehicle lights. In the process of driving at night, if the driver of the two cars driving opposite each other fails to adjust or forgets to adjust the high beam mode to the low beam mode according to the traffic law, the driver of the other car will be strongly irradiated by the glare on the windshield. Greatly endanger driving safety; timely adjustment to the low beam mode still has a certain amount of glare. For a line of waiting vehicles on the road at night, if the rear car fails to adjust according to traffic laws or forgets to adjust the high beam mode to low beam mode, the driver of the front row car will be affected by the glare reflected by the reversing mirror and side mirror, as the waiting time increases , will obviously cause various discomforts to the driver in the front seat. For the existing devices for automatic dimming and automatic adjustment of irradiation positions, the cost is high and the problem of dimming vehicles in rows cannot be solved.

Contents of the invention

In view of the above-mentioned prior art, the purpose of this utility model is to provide a vehicle dimming device based on infrared light and visible light, which aims to solve the problem that the existing dimming device cannot intelligently adjust the irradiation mode and irradiation position in various environments. Adjustment, technical problems such as the inability to perform intelligent dimming on the headlights of row vehicles and the high cost.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A vehicle dimming device based on infrared light and visible light, comprising a first vehicle light: including a visible light detection device, outputting an electrical signal; a second vehicle light: including an infrared light detection device, outputting an electrical signal; a processing unit: receiving an electrical signal signal to send out a control signal; the drive circuit: receives the control signal and outputs a drive current; the motor connected to the drive circuit: is also connected to the first vehicle light and/or the second vehicle light.

In the above solution, the first vehicle light further includes a first rotating base connected to the lampshade; the second vehicle light further includes a second rotating base connected to the lampshade. The motor is connected with the first lamp and the second lamp through a transmission device; the transmission device includes a clutch, a transmission rod and a rotating shaft connected in sequence. A single motor can control each lamp or two lamps at the same time, reducing the use of electrical appliances, reducing power consumption and cost; at the same time, it can precisely adjust the position of the lamp.

In the above solution, the clutch receives the control signal sent by the processing unit and performs clutching with the transmission rod. Realize that the position of each car light is rotated with the signal sent by the processing unit.

In the above solution, the processing unit is connected with a lower circuit; the lower circuit includes a short circuit switch. As a forced manual switch, when the driver finds that the automatic dimming device is abnormal, the automatic dimming device can be compulsorily short-circuited for manual control.

In the above solution, the visible light detection device and the infrared light detection device are equipped with a light-shielding cover outside; the light-shielding curved plates of the light-shielding cover face the first car light and the second car light respectively. Avoid the influence of own car lights on the detection device.

In the above solution, the visible light detection device includes a quadrant photodetector; the infrared light detection device includes a MEMS infrared sensor. The first vehicle light and/or the second vehicle light further include a driver chip connected to the processing unit: connected to the vehicle light. The quadrant photodetector uses the photoelectric potential difference of its photosensitive surface to determine the position of the opposite traffic light; when waiting in a row, a large amount of heat is discharged from the rear of the car, and it is a relatively constant value. When the MEMS infrared sensor detects the relatively constant heat value and its field When, an electrical signal is sent to the processor to realize dimming the light intensity and adjusting the irradiation position.

In the above solution, the visible light detection device and the infrared light detection device both further include a comparator connected to the output terminal thereof. To prevent the ambient crosstalk light from affecting the lights at night, the stray light signal below the threshold of the comparator will be filtered out.

The utility model has beneficial effects: intelligently adjust the irradiation mode and the irradiation position in various environments, and realize the dimming of the car lights of the rows of vehicles, and the cost is relatively low.

Description of drawings

Fig. 1 is the utility model structural module schematic diagram;

In the figure: 1-first transmission rod, 2-second transmission rod, 3-first rotating base, 4-second rotating base, 5-visible light detection device, 6-infrared light detection device.

Detailed ways

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a schematic diagram of the structural module of the present utility model, the first vehicle light: wherein includes a visible light detection device 5, and outputs an electrical signal; the second vehicle light: includes an infrared light detection device 6, which outputs an electrical signal; processing unit: receives an electrical signal, Send out a control signal; drive circuit: receive the control signal, and output drive current; the motor connected with the drive circuit: also connected with the first vehicle light and/or the second vehicle light.

Example 1

The visible light detection device adopts a quadrant photodetector. During the daytime, since there is no photoelectric potential difference on the photosensitive surface, the processing unit will judge it as daytime, and keep the lights off through the driving chip; at night, due to weak or no photocurrent, the processing unit will The unit judges that it is night. When the car is in the driving state, the oncoming car will appear on the quadrant detector, showing a bright spot. There is a large photoelectric potential difference between the bright spot and the photosensitive surface around the quadrant photodetector. The processing unit controls the drive circuit and the motor rotates. , so that the first vehicle light is kept relatively below the position of the bright spot and the processing unit controls the driving chip to reduce the brightness of the first vehicle light, while the position and brightness of the second vehicle light remain unchanged.

Example 2

The infrared light detection device adopts MEMS infrared sensor, and its detection distance is relatively short. In the scene of vehicles waiting in a row, the MEMS infrared sensor detects a constant heat source at a short distance ahead, and matches the preset value, sends an electrical signal to the processing unit, and the processing unit sends a control signal to the drive circuit and clutch at the same time, and the drive circuit starts The motor and the clutch are connected to the first transmission rod 1 and the second transmission rod 2 at the same time. At this time, the processing unit sends a control signal to the drive chip, the luminous intensity of the first car light and the second car light decreases, and the irradiation position faces the ground; When the constant heat source disappears, the MEMS infrared sensor has no signal output, and the processing unit sends a control signal to each device, and the first car light and the second car light return to the driving high beam direct illumination state.

Example 3

The processing unit and or driver chip are suitable for the following DSP, CPU or GPU, RISC architecture of APU, ARM or x86 architecture, quantum or photonic CPU technology selection. Throughout the technological development of microprocessors, there has been technological convergence: the invention of optical communication chips and graphene chips has caused unknown changes in network development hardware, and technological progress is only a reference for the selection of standards. However, due to the improvement of inferior inventions or cost considerations, only the practical technical solutions are selected.

Example 4

The first car light and/or the second car light use laser headlights, which have a long irradiation distance and good concentration.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any skilled person in the technical field can easily think of changes within the technical scope disclosed in the utility model Or replacement, all should be covered within the scope of protection of the present utility model.

Claims (8)

1., based on a vehicle dimming device for infrared light and visible ray, it is characterized in that, comprise

First car light: comprising visible ray detector (5), exports electric signal;

Second car light: comprising infrared light detecting device (6), exports electric signal;

Processing unit: receive electric signal, send control signal;

Driving circuit: reception control signal, output driving current;

The motor be connected with driving circuit: be also connected with the first car light and/or the second car light.

2. a kind of vehicle dimming device based on infrared light and visible ray according to claim 1, is characterized in that, the first described car light, also comprises the first rotating base (3) be connected with its lampshade; The second described car light, also comprises the second rotating base (4) be connected with its lampshade.

3. a kind of vehicle dimming device based on infrared light and visible ray according to claim 1, is characterized in that described motor is connected with the first car light and the second car light by driving device; Described driving device, comprises the power-transfer clutch connected successively, drive link and rotating shaft.

4. a kind of vehicle dimming device based on infrared light and visible ray according to claim 3, is characterized in that, described power-transfer clutch, receives the control signal that processing unit sends and also carries out clutch with drive link.

5. a kind of vehicle dimming device based on infrared light and visible ray according to claim 1, is characterized in that described processing unit is connected with the next circuit; The next circuit comprises short circuiting switch.

6. a kind of vehicle dimming device based on infrared light and visible ray according to claim 1, it is characterized in that, described visible ray detector (5) and infrared light detecting device (6), its outside is all provided with lightshade cover; Lightshade cover be in the light bent plate respectively towards the first car light and the second car light.

7. a kind of vehicle dimming device based on infrared light and visible ray according to claim 1, it is characterized in that, described visible ray detector (5), comprises quadrant photodetector; Described infrared light detecting device (6), comprises MEMS infrared pickoff.

8. a kind of vehicle dimming device based on infrared light and visible ray according to claim 1, it is characterized in that, the first described car light and/or the second car light, also comprise the driving chip be connected with processing unit: connect car light.