System and method for dirt retention detection and cleaning reminding of car windshields

A windshield and dust detection technology, which is used in vehicle cleaning, vehicle maintenance, measurement devices, etc., to reduce the difficulty of data processing, the number of active structures, and the occupancy of layout space.

Active Publication Date: 2020-02-28
DALIAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defect of manual detection of windshield dust and stains in the prior art, this application provides a system and

Method used

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  • System and method for dirt retention detection and cleaning reminding of car windshields
  • System and method for dirt retention detection and cleaning reminding of car windshields
  • System and method for dirt retention detection and cleaning reminding of car windshields

Examples

Experimental program
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Example Embodiment

[0031] Example 1

[0032] This embodiment provides a dust accumulation detection and cleaning reminder system for an automobile windshield, which includes a casing and a diffuse reflection surface, the diffuse reflection surface is attached to the outside of the windshield, and a casing is installed on the inside of the windshield, so The housing includes a left cavity, a right cavity and a lighting cavity. The bottom of the left cavity is provided with an LED light-emitting diode a, and a light intensity reference photoelectric sensor is arranged beside the LED light-emitting diode a, and the lower part of the left cavity is clamped. There is a light blocking plate, a half mirror a is inclined above the light blocking plate, a horizontal cavity is arranged on one side of the half mirror a, a transmissive photoelectric sensor is arranged in the horizontal cavity, and the reflective photoelectric sensor is installed on the top of the left cavity, And the front end is provided w...

Example Embodiment

[0036] Example 2

[0037] The present embodiment provides a dust accumulation detection and cleaning reminder method for an automobile windshield, including: a transmittance detection method and an illuminance rate detection method; the specific steps of the transmittance detection method are:

[0038] S1: The light sensor a detects the illuminance of the lighting cavity and transmits it to the microcontroller for judgment. When the illuminance is greater than or equal to the set threshold, go to step S2; when the illuminance is less than the set threshold, the single-chip microcomputer triggers the LED light-emitting diode b to light up, and the The light passes through the windshield to provide illumination for it, and then proceed to step S3;

[0039] S2: The light intensity reference photoelectric sensor captures the light of the LED light-emitting diode a, and uses the LED light intensity as the reference; the ambient light passes through the windshield first through the ...

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Abstract

The invention discloses a system and method for dirt retention detection and cleaning reminding of car windshields. The system comprises a shell and a diffuse reflection surface, wherein the diffuse reflection surface is attached on the outer side of a windshield; the shell is mounted on the inner side of the windshield; the shell comprises a left cavity, a right cavity and an illumination cavity;an LED light emitting diode a is arranged at the bottom of the left cavity; a light intensity reference photoelectric sensor is arranged beside the LED light emitting diode a; a light barrier is clamped at the lower part of the left cavity; a semi-permeable mirror a is obliquely arranged above the light barrier; a horizontal cavity is formed on one side of the semi-permeable mirror a; a transmitting photoelectric sensor is arranged in the horizontal cavity; a reflecting photoelectric sensor is mounted at the top of the left cavity; and a transmitting glass thin film is arranged at the front end of the reflecting photoelectric sensor. The system and method are capable of realizing dirt retention detection, cleanliness detection and windshield cleaning reminding.

Description

technical field [0001] The invention belongs to the field of automobile windshield cleaning, in particular to a system and method for detecting dust accumulation of automobile windshield cleanliness and reminding glass cleaning based on a light sensor. Background technique [0002] With the development of detection technology, considering the comfort and safety of driving, the detection of dust accumulation and cleanliness of automobile windshields is currently in the preliminary exploration stage. The existing technology mainly uses human eyes to judge to clean the windshield. Windshield cleanliness has an important impact on the driver's eye fatigue. Most drivers tend to ignore the importance of windshield cleanliness, and there is no mention of the technology and method of windshield cleanliness detection at home and abroad. Clean glass is critical in terms of driving safety and comfort. At present, the front-end technology of automobile windshield cleaning system only c...

Claims

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Application Information

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IPC IPC(8): G01N21/94G01N21/88G01N21/01B60S1/02B60S1/08
CPCG01N21/94G01N21/8806G01N21/01B60S1/02B60S1/0874B60S1/0822G01N2021/0112
Inventor 王淑芬宋佳文李飞龚正川王晓东
Owner DALIAN UNIVERSITY
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