Method for measuring surface pollution degree of vehicle lamp
A technology for surface pollution and car lights, which is used in vehicle cleaning, color/spectral characteristic measurement, and vehicle maintenance. Effect
Inactive Publication Date: 2013-04-10
ANHUI NORMAL UNIV
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The invention discloses a method for automatically measuring the pollution degree of the surface of a car lamp. The method can measure the pollution degree of the surface of the car lamp, clean the lampshade according to the actual situation, and overcome the technical defect that the lampshade cannot be cleaned in time or is unnecessary to clean the lampshade
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] refer to figure 1 , in this embodiment, including modulation circuit, car lamp shade, ultraviolet light detector sensitive to specific wavelength, processing circuit and car light washer; The ultraviolet light detector sensitive to specific wavelength includes photodiode and optical filter; modulation The circuit includes a square wave signal generator, an LED driver and an LED lamp; the processing circuit includes an amplifier, a frequency selection network, a rectification filter circuit and a voltage comparator.
[0017] Due to the impact of the environment, the surface of the lampshade will be polluted. When the lamp is working, the circuit is activated.
[0018] The square wave signal generator generates a square wave signal to the enable terminal of the LED driver, controls the driver, and generates a square wave signal with a frequency of 40KHZ through software programming of the square wave signal generator. When the enable terminal of the LED driver is valid, t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for measuring the surface pollution degree of a vehicle lamp. A modulation circuit is used for modulating ultraviolet light emitted by a light source; the modulated ultraviolet light is irradiated on a lampshade of the vehicle lamp; the light scattered by the lampshade is received by an ultraviolet light detector which is sensitive to a specific wavelength; the intensity of the light is converted to an electric signal by the ultraviolet light detector; the electric signal is delivered to a processing circuit; and the processing circuit outputs voltage. In the case that the pollution of the lampshade achieves a certain degree, the processing circuit outputs high level so as to start a vehicle lamp cleaner, and after the lampshade is cleaned, the cleaner is automatically switched off. According to the method disclosed by the invention, the surface cleanness of the vehicle lamp can be kept, the unnecessary cleanliness on the lampshade can be reduced, and the service life of the cleaner can be prolonged.
Description
technical field [0001] The present invention relates to a method for judging the degree of pollution of lampshades of car lamps, in particular to a method of using a light source to emit ultraviolet light to irradiate lampshades of lamps and lanterns, and an ultraviolet light detector sensitive to a specific wavelength receives scattered light and converts it into an electrical signal, and according to the size of the electrical signal Method for judging the degree of contamination of lampshades of headlights. Background technique [0002] The lighting condition of vehicle lights is an important factor affecting safe driving at night or in poor light conditions. The degree of pollution of the car lamp shade will affect the lighting effect and even cause traffic accidents. In the existing car lamp cleaning device and method, the technology of continuously cleaning the lampshade or intermittently starting the cleaning device technology or manually starting the cleaning device...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01N21/33B60S1/60
Inventor 朱向冰马书芳田丽伟吴长义周学东
Owner ANHUI NORMAL UNIV