Automobile lamp automatic turning-on and turning-off device based on light induction and using method thereof

Abstract

The invention relates to the technical field of automobile lamps, in particular to an automobile lamp automatic turning-on and turning-off device based on light induction and a using method thereof, and the automobile lamp automatic turning-on and turning-off device comprises a light induction unit, a signal processing module, a threshold value judgment unit, a driving execution unit, an automobile lamp assembly, a manual covering interface, an energy-saving sleep module, a shell and a mounting bracket; the light sensing unit comprises a light sensing head, the light sensing head is fixedly connected to the front end of the fixing piece, a lens is installed at the front end of the light sensing head, a flow guide unit is installed at the upper end of the light sensing head, and power units are installed on the two sides of the light sensing head; the light sensing head comprises a light sensing head shell, and a dust removal hole and an inclined hole are formed in the upper end of the light sensing head shell; according to the automobile lamp automatic on-off device and method, the environment light intensity can be accurately sensed, natural light and other light sources can be distinguished, the response speed is high, an energy-saving mode is achieved, and the manual covering function is achieved, so that the safety and comfort of an automobile at night or in a low-visibility scene are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile lamps, in particular to an automobile lamp automatic opening and closing device based on light induction and a use method thereof. BACKGROUND

[0002] The automobile lamp automatic opening and closing device based on light induction is embedded with a photosensitive sensor on the top of a rearview mirror or an instrument panel, and the ambient illumination is monitored in real time; when the brightness is lower than a set threshold (such as dusk, entering a tunnel or heavy rain), the sensor sends a signal to an ECU, and after confirmation by a false touch prevention algorithm, the low beam is automatically turned on within 1-2 seconds, and vice versa, so that the whole process is free of manual operation, and the sensitivity can be adjusted, the extinguishing delay power-off and the high beam auxiliary switching are supported, and the driving safety and the battery life are improved. The existing automobile lamp control is mainly dependent on manual operation of a driver or automatic opening based on signals such as vehicle speed and inclination, and it is difficult to balance fast response, identification of environmental light interference and energy saving requirements, especially in scenes such as tunnel entrances, dusk, rain and fog, and there are problems of light opening lag or false triggering, which affect driving safety and comfort, therefore, the automobile lamp automatic opening and closing device based on light induction and the use method thereof are proposed to solve the above problems. SUMMARY

[0003] The automobile lamp automatic opening and closing device based on light induction and the use method thereof are provided to solve the problem that the existing automobile lamp control is mainly dependent on manual operation of a driver or automatic opening based on signals such as vehicle speed and inclination, and it is difficult to balance fast response, identification of environmental light interference and energy saving requirements, especially in scenes such as tunnel entrances, dusk, rain and fog, and there are problems of light opening lag or false triggering.

[0004] To achieve the above-mentioned purpose, the application provides the following technical scheme: The automobile lamp automatic opening and closing device based on light induction and the use method thereof comprise a light induction unit, a signal processing module, a threshold determination unit, a driving execution unit, a lamp assembly, a manual override interface, an energy-saving sleep module, a shell and a mounting bracket; the light induction unit comprises a light induction head, the light induction head is fixedly connected to the front end of a fixing piece, a lens is installed at the front end of the light induction head, a flow guide unit is installed at the upper end of the light induction head, and power units are installed on both sides of the light induction head; the light induction head comprises a light induction head shell, dust holes and inclined holes are formed in the upper end of the light induction head shell; the power unit comprises an air tank, a fixed plate is fixedly connected to the inner lower end of the air tank, a fixed frame and a filter screen are fixedly connected to the side of the fixed plate from top to bottom, a one-way air inlet valve is fixedly connected to the middle of the fixed plate, a buffer unit is fixedly connected to the upper end of both sides of the fixed plate, a pressure valve is installed on one side of the upper end of the air tank, an elastic air drum membrane is fixedly connected to the inner side of the fixed frame, and a counterweight ball is fixedly connected to the middle of the elastic air drum membrane.

[0005] As a further optimization of the present application, wherein: the inclined holes are parallel, and the angle between the inclined holes and the lens axis is 45 degrees.

[0006] As a further optimization of the present application, wherein: the buffer unit comprises a hollow shell, a buffer sheet is mounted inside one side of the hollow shell, the bottom of the hollow shell is provided with an opening, and a through hole is formed in the inner side of each end of the fixed plate, and the opening in the bottom of the hollow shell is in communication with the through hole.

[0007] As a further optimization of the present application, wherein: two buffer units are provided, the two buffer units are parallel, and the upper end, the end away from the center point of the air tank, and the rear end of each buffer unit are fixedly connected with the inner wall of the air tank.

[0008] As a further optimization of the present application, wherein: the flow guide unit comprises an air pipe, the two ends of the air pipe are connected with the air tank through pressure valves, a gas hole is formed in the inner side of the air pipe, the gas hole is provided in a T shape as a whole, the middle of the gas hole is in communication with a dust removal hole, a plurality of inclined holes are provided, and the dust removal hole is in communication with the inclined holes.

[0009] As a further optimization of the present application, wherein: two power units are provided, the power units are parallel, the upper end of each power unit is connected with the flow guide unit, and the rear end of each power unit is fixedly connected with a fixed part.

[0010] As a further optimization of the present application, wherein: the light sensing unit is composed of a double-band photoelectric sensor and an RGB visible light sensor, and real-time collection of front environmental light intensity and spectral information is realized. The signal processing module integrates a microcontroller, an analog-to-digital conversion circuit, and a digital filtering algorithm, receives the light sensing unit signal, and extracts light intensity and color temperature data. The threshold determination unit stores adjustable high / low illumination threshold values and interference suppression threshold values, and outputs on / off lamp instructions according to the processed signals. The driving execution unit comprises a relay driver, a motor driver, or an intelligent power MOS tube, and directly controls the on / off of the vehicle lamp assembly.

[0011] As a further optimization of the present application, wherein: the manual override interface is provided with a physical key and a CAN bus interface, which is used for manually forcing the opening or closing, and returning the status to the vehicle network. The energy-saving sleep module enters low-power standby under long-time high-illumination in the daytime, and quickly "wakes up" when a sudden change is detected.

[0012] As a further optimization of the present application, wherein: S1: the light sensing unit continuously samples the environmental light signal and transmits it to the signal processing module. S2: the signal processing module performs ADC sampling, digital filtering and spectral correction on the sampling data, and outputs effective light intensity and color temperature information; S3: the threshold judging unit compares the light intensity with high / low thresholds: When the light intensity is lower than the low threshold, an "turn on the light" instruction is outputted; When the light intensity is higher than the high threshold and remains for a set time length, an "turn off the light" instruction is outputted; When the interference spectrum is detected, the current state is maintained; S4: the driving execution unit receives the instruction and completes the on-off operation of the vehicle light; S5: the driver issues a forced on-off instruction through a manual override interface, and the system suspends the automatic judgment and executes the manual command; S6: the energy-saving sleep module makes the device enter a low-power standby mode in a high light intensity environment in the daytime, and quickly restores the process S1 after detecting a light intensity mutation.

[0013] As a further optimization of the application, the computer program stored thereon is executed by the processor to run the steps in the method of claim 9.

[0014] Compared with the prior art, the application has the following beneficial effects: 1. In the application, an automobile light automatic on-off device and method capable of accurately sensing ambient light intensity, distinguishing natural light from other light sources, having fast response speed, energy-saving mode and manual override function are provided, so as to improve the safety and comfort of vehicles in night / low-visibility scenarios; 2. In the application, the light sensing unit is arranged, in the process of driving the automobile, gas is blown into the gas tank by the bumping of the automobile, when the gas in the gas tank reaches a certain pressure, the pressure is released to clean the dust on the surface of the lens, without external power, the lens dust is processed, the stable operation of the equipment is ensured, and the energy consumption is relatively low; 3. In the application, the buffer unit is arranged, when the buffer piece stores gas in the gas tank, the buffer piece deforms, after the pressure valve is opened, the buffer piece is elastically reset, the discharge amount of the gas after the pressure valve is opened once is increased, and the cleaning effect on the surface of the lens is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the light sensing unit structure of the application; Figure 3 It is a sectional view of the light sensing head of the application; Figure 4 It is a schematic diagram of the structure at A in the application; Figure 3 ​Figure 5 It is the internal structure schematic diagram of power unit of the present application; Figure 6 It is the buffer unit sectional view of the present application; Figure 7 It is the fixed plate structure schematic diagram of the present application; Figure 8 It is the guide unit structure schematic diagram of the present application.

[0016] 10, light sensing unit in the figure; 11, light sensing head; 111, light sensing head shell; 112, dust removal hole; 113, inclined hole; 12, power unit; 121, air tank; 122, pressure valve; 123, buffer unit; 1231, empty shell; 1232, buffer sheet; 124, one-way air inlet valve; 125, fixed plate; 126, filter screen; 127, fixed frame; 128, elastic air drum film; 129, counterweight ball; 13, guide unit; 131, air pipe; 132, air hole; 14, lens; 15, fixed part; 20, signal processing module; 30, threshold value determination unit; 40, driving execution unit; 50, vehicle lamp assembly; 60, manual override interface; 70, energy-saving sleep module. DETAILED DESCRIPTION

[0017] Please refer to Figures 1-8 , the present application provides a technical solution: The automobile vehicle lamp automatic opening and closing device based on light sensing and the use method thereof, comprising a light sensing unit 10, a signal processing module 20, a threshold value determination unit 30, a driving execution unit 40, a vehicle lamp assembly 50, a manual override interface 60, an energy-saving sleep module 70, and a shell and a mounting bracket; the light sensing unit 10 comprises a light sensing head 11, the light sensing head 11 is fixedly connected to the front end of the fixed part 15, the front end of the light sensing head 11 is provided with a lens 14, the upper end of the light sensing head 11 is provided with a guide unit 13, and both sides of the light sensing head 11 are provided with a power unit 12; the light sensing head 11 comprises a light sensing head shell 111, the light sensing head shell 111 is provided with a dust removal hole 112 and an inclined hole 113 at the upper end; the power unit 12 comprises an air tank 121, the inner side of the air tank 121 is fixedly connected with a fixed plate 125 at the lower end, the fixed plate 125 is fixedly connected with a fixed frame 127 and a filter screen 126 from top to bottom on the side surface, a one-way air inlet valve 124 is fixedly connected in the middle of the fixed plate 125, a buffer unit 123 is fixedly connected on both sides of the upper end of the fixed plate 125, a pressure valve 122 is installed on one side of the upper end of the air tank 121, an elastic air drum film 128 is fixedly connected inside the fixed frame 127, and a counterweight ball 129 is fixedly connected in the middle of the elastic air drum film 128.

[0018] As a further implementation of the present scheme, the inclined holes 113 are parallel, and the angle between the inclined holes 113 and the central axis of the lens 14 is 45°. Through this arrangement, the cleanliness of the dust treatment on the surface of the lens 14 can be improved through the inclined holes 13. As a further implementation of the present scheme, the buffer unit 123 includes a hollow shell 1231, the hollow shell 1231 has a buffer sheet 1232 installed inside one side, and the bottom of the hollow shell 1231 is provided with an opening. The fixed plate 125 has a through hole formed on the inner side of both ends, and the through hole is in communication with the opening at the bottom of the hollow shell 1231. Through the above arrangement, the gas amount discharged by the pressure valve 122 in a single pass can be improved by using the reset of the buffer sheet 1232. As a further implementation of the present scheme, two buffer units 123 are provided, and the two buffer units 123 are parallel. The upper end of the buffer unit 123, the end away from the center point of the air tank 121, and the rear end are all fixedly connected with the inner wall of the air tank 121. Through the above arrangement, the stability of the whole device during operation can be further improved. As a further implementation of the present scheme, the flow guide unit 13 includes an air pipe 131, and the air pipe 131 is connected between the pressure valve 122 and the air tank 121 at both ends. The air pipe 131 has a gas hole 132 formed on the inner side, and the gas hole 132 is provided in a T shape. The middle of the gas hole 132 is in communication with the dust removal hole 112. The inclined hole 113 is provided with a plurality of inclined holes, and the dust removal hole 112 is in communication with the inclined hole 113. Through the above arrangement, the gas in the air tank 121 can be stably distributed into the dust removal hole 112. As a further implementation of the present scheme, two power units 12 are provided, and the power units 12 are parallel. The upper end of the power unit 12 is connected through the flow guide unit 13, and the rear end of the power unit 12 is fixedly connected with the fixed part 15. Through the above arrangement, the exhaust amount can be improved when the pressure valve 122 works synchronously, and the cleaning frequency can be improved when the pressure valve 122 works asynchronously. As a further implementation of the present scheme, the light sensing unit 10 is composed of a double-band photoelectric sensor and an RGB visible light sensor, which can collect the ambient light intensity and spectral information in real time. The signal processing module 20 integrates a microcontroller, an analog-to-digital conversion circuit, and a digital filtering algorithm, receives the signal of the light sensing unit 10, and extracts the light intensity and color temperature data. The threshold determination unit 30 stores adjustable high / low illumination threshold values and interference suppression threshold values, and outputs on / off lamp instructions according to the processed signals. The driving execution unit 40 includes a relay driver, a motor driver, or an intelligent power MOS tube, which directly controls the on-off of the vehicle lamp assembly 50. As a further implementation of the present scheme, the manual override interface 60 is provided with a physical button and a CAN bus interface for manual forced on or off, and the status is returned to the vehicle network; The energy-saving sleep module 70 enters low-power standby under long-time high-illumination in the daytime, and quickly "wakes up" when a mutation is detected. As a further implementation of the present scheme, S1: the light sensing unit 10 continuously samples the ambient light signal and transmits it to the signal processing module 20; S2: the signal processing module 20 performs ADC sampling, digital filtering and spectral correction on the sampled data, and outputs effective light intensity and color temperature information; S3: the threshold judgment unit 30 compares the light intensity with the high / low threshold value: When the light intensity is less than the low threshold value, output "turn on the light" instruction; When the light intensity is greater than the high threshold value and remains for more than a set time, output "turn off the light" instruction; When the interference spectrum is detected, the current state is maintained; S4: the driving execution unit 40 receives the instruction and completes the on-off operation of the vehicle light; S5: the driver issues a forced on-off instruction through the manual override interface 60, and the system suspends automatic judgment and executes the manual command; S6: the energy-saving sleep module 70 makes the device enter low-power standby under high-illumination in the daytime, and quickly restores the process S1 after detecting a light intensity mutation.

[0019] The computer program is stored on the storage medium and executed by the processor to run the steps in the method of claim 9, facilitating the overall maintenance and upgrade of the device at a later stage.

[0020] The light sensing unit 10 controls the elastic air membrane 128 to move up and down during the process of the vehicle driving and jolting, and in the process of the elastic air membrane 128 moving up and down, the external gas is extracted into the air tank 121 through the one-way air inlet valve 124, when the pressure in the air tank 121 exceeds the maximum bearing threshold of the pressure valve 122, the pressure valve 122 opens, and the gas in the air tank 121 is completely blown into the air pipe 131, and then the surface of the lens 14 is cleaned through the dust removal hole 112 and the inclined hole 113; In the above process, the buffer unit 123 can utilize the deformation of the buffer sheet 1232 to improve the gas flow, and at the same time, the filter screen 126 can prevent dust from adhering to the lower end of the elastic air membrane 128.

[0021] The principles and implementation manners of the present application are described by using specific examples, and the above examples are only used for helping to understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be pointed out that, due to the limitedness of the expression, there are objectively infinite specific structures, and for the ordinary skilled in the art, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A light-sensing-based automatic on / off device for automotive lights, characterized in that, It includes a light sensing unit (10), a signal processing module (20), a threshold determination unit (30), a drive execution unit (40), a headlight assembly (50), a manual cover interface (60), an energy-saving sleep module (70), and a housing and mounting bracket; The light sensing unit (10) includes a light sensing head (11), which is fixedly connected to the front end of the fixing member (15). A lens (14) is installed at the front end of the light sensing head (11), a flow guiding unit (13) is installed at the upper end of the light sensing head (11), and a power unit (12) is installed on both sides of the light sensing head (11). The photosensitive head (11) includes a photosensitive head housing (111), and the upper end of the photosensitive head housing (111) is provided with a dust removal hole (112) and an oblique hole (113). The power unit (12) includes an air box (121), a fixed plate (125) is fixedly connected to the lower inner side of the air box (121), a fixed frame (127) and a filter screen (126) are fixedly connected to the side of the fixed plate (125) from top to bottom, a one-way air intake valve (124) is fixedly connected in the middle of the fixed plate (125), a buffer unit (123) is fixedly connected to both sides of the upper end of the fixed plate (125), a pressure valve (122) is installed on one side of the upper end of the air box (121), an elastic air diaphragm (128) is fixedly connected to the inner side of the fixed frame (127), and a counterweight ball (129) is fixedly connected in the middle of the elastic air diaphragm (128).

2. The automatic on / off device for automotive lights based on light sensing according to claim 1, characterized in that: The oblique holes (113) are parallel to each other, and the angle between the oblique holes (113) and the central axis of the lens (14) is 45°.

3. The automatic on / off device for automotive lights based on light sensing according to claim 1, characterized in that: The buffer unit (123) includes a shell (1231), a buffer plate (1232) is installed inside one side of the shell (1231), the bottom of the shell (1231) is open, and through holes are opened on the inner sides of both ends of the fixing plate (125). The bottom opening of the shell (1231) is connected to the through holes.

4. The automatic on / off device for automotive lights based on light sensing according to claim 1, characterized in that: Two buffer units (123) are provided, and the two buffer units (123) are parallel to each other. The upper end, the end away from the center point of the air box (121), and the rear end of the buffer unit (123) are fixedly connected to the inner wall of the air box (121).

5. The automatic on / off device for automotive lights based on light sensing according to claim 1, characterized in that: The flow guiding unit (13) includes an air pipe (131), the two ends of which are connected to the air box (121) through pressure valves (122). An air hole (132) is provided on the inner side of the air pipe (131). The air hole (132) is T-shaped. The middle of the air hole (132) is connected to the dust removal hole (112). Multiple inclined holes (113) are provided. The dust removal hole (112) is connected to the inclined hole (113).

6. The automatic on / off device for automotive lights based on light sensing according to claim 1, characterized in that: Two power units (12) are provided, and the power units (12) are parallel to each other. The upper end of the power unit (12) is connected through the flow guide unit (13), and the rear end of the power unit (12) is fixedly connected to the fixing member (15).

7. The automatic on / off device for automotive lights based on light sensing according to claim 1, characterized in that: The light sensing unit (10) consists of a dual-band photoelectric sensor and an RGB visible light sensor, which collects ambient light intensity and spectral information in real time. The signal processing module (20) integrates a microcontroller, an analog-to-digital converter circuit and a digital filtering algorithm, receives the signal from the photosensitive unit (10) and extracts light intensity and color temperature data; The threshold determination unit (30) stores adjustable high / low illuminance thresholds and interference suppression thresholds, and outputs on / off commands based on the processed signal. The drive execution unit (40) includes a relay drive, a motor drive, or a smart power MOSFET, which directly controls the on / off state of the vehicle lighting assembly (50).

8. The automatic on / off device for automotive lights based on light sensing according to claim 1, characterized in that: The manual cover interface (60) is equipped with physical buttons and a CAN bus interface for manually forcibly turning on or off and transmitting the status back to the vehicle network. The energy-saving sleep module (70) enters low-power standby mode under high daylight conditions for a long time, and quickly "wakes up" when a sudden change is detected.

9. A method of using the light-sensing-based automatic on / off device for automotive lights as described in claim 1, characterized in that: S1: The light sensing unit (10) continuously samples the ambient light signal and transmits it to the signal processing module (20). S2: The signal processing module (20) performs ADC sampling, digital filtering and spectral correction on the sampled data, and outputs effective light intensity and color temperature information; S3: Threshold judgment unit (30) compares the light intensity with the high / low threshold: When the light intensity is less than the low threshold, output the "turn on the light" command; If the light intensity exceeds the high threshold and remains so for more than the set time, output a "turn off lights" command; When interference spectrum is detected, maintain the current state; S4: The drive execution unit (40) receives the instruction and completes the on / off operation of the vehicle lights; S5: The driver issues a forced switch command through the manual overlay interface (60), and the system suspends automatic judgment and executes the manual command; S6: The energy-saving sleep module (70) puts the device into low-power standby in the high light intensity environment during the day, and quickly resumes process S1 after detecting a sudden change in light intensity.

10. The method of using the photosensitive automatic start / stop device for automotive lights according to claim 9, wherein a computer program is stored thereon, characterized in that... When the computer program is executed by the processor, it performs the steps of the method as described in claim 9.

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