CN210666080U - Automobile rainfall sensor and automobile - Google Patents
Automobile rainfall sensor and automobile Download PDFInfo
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- CN210666080U CN210666080U CN201922062915.6U CN201922062915U CN210666080U CN 210666080 U CN210666080 U CN 210666080U CN 201922062915 U CN201922062915 U CN 201922062915U CN 210666080 U CN210666080 U CN 210666080U
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Abstract
The utility model relates to an automobile of an automobile rainfall sensor, which comprises a light source emitting device and a light source receiving device; the light source emitting device is arranged at one end of the windshield and used for emitting infrared rays into the windshield at a preset angle, and the infrared rays are transmitted to the other end of the windshield through total reflection of the windshield; the light source receiving device is arranged at the other end of the windshield and used for receiving infrared rays emitted by the light source emitting device which is totally emitted in the windshield and generating an electric signal according to the intensity of the received infrared rays. By utilizing the principle that infrared rays are fully emitted in the windshield, the rainfall of the visible area of the windshield can be detected, and the sight of a driver cannot be influenced.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to car rain sensor and car.
Background
Rainy day, when the raindrop fell on the windshield of door window for the driver received the hindrance to the sight in car the place ahead, and the road in front can become vague, and this is that the driver need open the windshield on the windshield wiper strike off the rainwater on the windshield, and then improves driver's visibility, increases driving safety. The existing windscreen wiper is mainly actively started by a driver, and the driving attention of the driver is obviously influenced; in the prior art, a rain sensor is arranged on the windshield of an automobile to detect whether the automobile rains or not, so that the wiper is controlled to work; however, the existing rain sensor mainly detects the amount of rain on a specific area of the windshield, generally the amount of rain on the middle upper area of the front windshield, the detection range is small, the detection position is not the visible area of the windshield, the raindrop state of the visible area cannot be completely represented in a light rain state, and when the washing water flows down from the outside of the detection area, the position cannot be detected.
SUMMERY OF THE UTILITY MODEL
Therefore, the automobile rainfall sensor and the automobile need to be provided, and the problems that the detection area of the existing automobile rainfall sensor is small, and the raindrop state of the visible area cannot be accurately judged are solved.
In order to achieve the above object, the inventor provides an automobile rainfall sensor, which comprises a light source emitting device and a light source receiving device;
the light source emitting device is arranged at one end of the windshield and used for emitting infrared rays into the windshield at a preset angle, and the infrared rays are transmitted to the other end of the windshield through total reflection of the windshield;
the light source receiving device is arranged at the other end of the windshield and used for receiving infrared rays emitted by the light source emitting device which is totally emitted in the windshield and generating an electric signal according to the intensity of the received infrared rays.
Further optimize, light source emitter and light source receiving arrangement all set up at the windshield inboard.
Preferably, the light source emitting device is arranged above the windshield, and the light source receiving device is arranged below the windshield.
Further preferably, the preset angle is 45 degrees.
Further preferably, the light source emitting device and the light source receiving device are in multiple groups.
The inventor also provides another technical scheme that: an automobile capable of automatically adjusting a windscreen wiper comprises an automobile rainfall sensor, a windscreen wiper controller and the windscreen wiper, wherein the automobile rainfall sensor comprises a light source emitting device and a light source receiving device;
the light source emitting device is arranged at one end of the windshield and used for emitting infrared rays into the windshield at a preset angle, and the infrared rays are transmitted to the other end of the windshield through total reflection of the windshield;
the light source receiving device is arranged at the other end of the windshield and is used for receiving infrared rays emitted by the light source emitting device which is totally emitted in the windshield, generating an electric signal according to the intensity of the received infrared rays and sending the electric signal to the wiper controller;
the wiper controller is used for controlling the wiper to work according to the received electric signal sent by the light source receiving device.
Further optimize, light source emitter and light source receiving arrangement all set up at the windshield inboard.
Preferably, the light source emitting device is arranged above the windshield, and the light source receiving device is arranged below the windshield.
Further preferably, the preset angle is 45 degrees.
Further preferably, the automobile rainfall sensor comprises a plurality of groups of light source emitting devices and light source receiving devices.
Be different from prior art, above-mentioned technical scheme, light source emitter through with car rainfall sensor sets up the one end at windshield, light source emitter is with certain angle to windshield internal transmission infrared ray, the infrared ray is total reflection in windshield, make the other end that the infrared ray can propagate windshield received by light source receiving arrangement, and when rainwater contact glass, then raindrop meeting scattered light, then lead to the intensity weak of the infrared ray of total reflection in windshield, rainfall on can judging glass through the change of infrared ray intensity, and, utilize the infrared ray total emission principle in windshield, can detect windshield's visible region's rainfall, can not influence driver's sight simultaneously.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a rain sensor for a vehicle;
fig. 2 is a schematic diagram of an operating principle of the automobile rainfall sensor according to the embodiment.
Description of reference numerals:
110. a light source emitting device for emitting light from a light source,
120. a light source receiving device for receiving the light source,
130. the infrared ray,
140. a glass pane of a vehicle is provided with a windshield,
150. raindrops.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1-2, the present embodiment provides an automobile rainfall sensor, which includes a light source emitting device 110 and a light source receiving device 120;
the light source emitting device 110 is disposed at one end of the windshield 140, the light source emitting device 110 is configured to emit infrared rays 130 into the windshield 140 at a preset angle, and the infrared rays 130 are transmitted to the other end of the windshield 140 through total reflection of the windshield 140;
the light source receiving device 120 is disposed at the other end of the windshield 140, and the light source receiving device 120 is configured to receive the infrared rays 130 emitted by the light source emitting device 110 that are all emitted in the windshield 140 and generate an electrical signal according to the intensity of the received infrared rays 130.
By arranging the light source emitting device 110 of the automobile rainfall sensor at one end of the windshield 140, the light source emitting device 110 emits the infrared 130 into the windshield 140 at a certain angle, wherein the light source emitting device 110 can emit the infrared 130 through an infrared emitting diode, the infrared 130 is totally reflected in the windshield 140, so that the infrared 130 can be transmitted to the other end of the windshield 140 to be received by the light source receiving device 120, wherein the infrared 130 can be received through a photodiode arranged in the light source receiving device 120, the light source receiving device 120 is connected to a wiper controller, the light source receiving device 120 generates an electric signal according to the intensity of the received infrared 130 and transmits the electric signal to the wiper controller, the wiper controller can judge the rainfall according to the electric signal transmitted by the light source receiving device 120, and further control the wiper to work, when rain water contacts the glass, the raindrops 150 scatter light, so that the intensity of the infrared rays 130 totally reflected in the windshield 140 is weakened, the rainfall on the glass can be judged through the change of the intensity of the infrared rays 130, and the rainfall in the visible area of the windshield 140 can be detected by utilizing the principle that the infrared rays 130 are totally emitted in the windshield 140, and meanwhile, the sight line of a driver cannot be influenced. When raining and rainwater falls on the windshield 140, the light source emitting device 110 emits infrared rays 130 which are scattered by the rainwater, the intensity of the infrared rays 130 becomes weaker, the more the rainwater is, the stronger the infrared rays 130 are scattered, so that the weaker the infrared rays 130 are, the magnitude of the rainfall can be judged according to the intensity of the infrared rays 130, and the speed of the wiper can be started and adjusted. The light source emitting device 110 emitting the infrared ray 130 and the light source receiving device 120 receiving the infrared ray 130 are prior art and will not be described in detail.
In the present embodiment, the automobile rain sensor is prevented from being damaged by external factors, and the light source emitting device 110 and the light source receiving device 120 are both disposed inside the windshield 140. By arranging the light source emitting device 110 and the light source receiving device 120 on the windshield glass, the light source emitting device 110 and the light source receiving device 120 are protected by the windshield glass 140, and the influence of external factors on the automobile rainfall sensor can be reduced.
In the present embodiment, in order to increase the detection area and the detection accuracy of the vehicle rain sensor, the light source emitting device 110 is disposed above the windshield 140, and the light source receiving device 120 is disposed below the windshield 140. By disposing the light source emitting device 110 above the windshield 140 and the light source receiving device 120 below the windshield 140, the detection area of the rainfall sensor can be increased, and the detection accuracy of the light source receiving device 120 is not affected by the excessively long distance between the light source receiving device 120 and the light source receiving device 120.
In the present embodiment, in order to ensure the density of the infrared rays 130 on the windshield 140, the predetermined angle is 45 degrees. The infrared ray 130 is incident into the windshield 140 at a predetermined angle of 45 degrees, so that when the infrared ray 130 is totally reflected in the windshield 140, the density of the infrared ray 130 can be ensured, and the rainfall on the windshield 140 can be accurately detected.
In the present embodiment, the light source emitting device 110 and the light source receiving device 120 are multiple sets for detecting a larger area and detecting more accurately. By arranging the plurality of sets of the light source emitting devices 110 and the light source receiving devices 120, the plurality of sets of the light source emitting devices 110 and the light source receiving devices 120 are arranged in parallel, a larger area on the windshield can be detected, and the rainfall on the windshield 140 can be detected more accurately by the plurality of sets of the light source emitting devices 110 and the light source receiving devices 120.
Referring to fig. 1-2, in another embodiment, an automobile with an automatic wiper adjustment function includes an automobile rain sensor, a wiper controller and a wiper, wherein the automobile rain sensor includes a light source emitting device 110 and a light source receiving device 120;
the light source emitting device 110 is disposed at one end of the windshield 140, the light source emitting device 110 is configured to emit infrared rays 130 into the windshield 140 at a preset angle, and the infrared rays 130 are transmitted to the other end of the windshield 140 through total reflection of the windshield 140;
the light source receiving device 120 is arranged at the other end of the windshield 140, and the light source receiving device 120 is used for receiving the infrared rays 130 emitted by the light source emitting device 110 which are radiated in the windshield 140, generating an electric signal according to the intensity of the received infrared rays 130 and sending the electric signal to the wiper controller;
the wiper controller is configured to control the wiper according to the electrical signal received from the light source receiving device 120.
By arranging the light source emitting device 110 of the automobile rainfall sensor at one end of the windshield 140, the light source emitting device 110 emits the infrared 130 into the windshield 140 at a certain angle, wherein the light source emitting device 110 can emit the infrared 130 through an infrared emitting diode, the infrared 130 is totally reflected in the windshield 140, so that the infrared 130 can be transmitted to the other end of the windshield 140 to be received by the light source receiving device 120, wherein the infrared 130 can be received through a photodiode arranged in the light source receiving device 120, the light source receiving device 120 is connected to a wiper controller, the light source receiving device 120 generates an electric signal according to the intensity of the received infrared 130 and transmits the electric signal to the wiper controller, the wiper controller can judge the rainfall according to the electric signal transmitted by the light source receiving device 120, and further control the wiper to work, when rain water contacts the glass, the raindrops 150 scatter light, so that the intensity of the infrared rays 130 totally reflected in the windshield 140 is weakened, the rainfall on the glass can be judged through the change of the intensity of the infrared rays 130, and the rainfall in the visible area of the windshield 140 can be detected by utilizing the principle that the infrared rays 130 are totally emitted in the windshield 140, and meanwhile, the sight line of a driver cannot be influenced. When raining and rainwater falls on the windshield 140, the light source emitting device 110 emits infrared rays 130 which are scattered by the rainwater, the intensity of the infrared rays 130 becomes weaker, the more the rainwater is, the stronger the infrared rays 130 are scattered, so that the weaker the infrared rays 130 are, the magnitude of the rainfall can be judged according to the intensity of the infrared rays 130, and the speed of the wiper can be started and adjusted. The light source emitting device 110 emits infrared rays and the light source receiving device 120 receives infrared rays, which are all the prior art and will not be described in detail.
In the present embodiment, the automobile rain sensor is prevented from being damaged by external factors, and the light source emitting device 110 and the light source receiving device 120 are both disposed inside the windshield 140. By arranging the light source emitting device 110 and the light source receiving device 120 on the windshield glass, the light source emitting device 110 and the light source receiving device 120 are protected by the windshield glass 140, and the influence of external factors on the automobile rainfall sensor can be reduced.
In the present embodiment, in order to increase the detection area and the detection accuracy of the vehicle rain sensor, the light source emitting device 110 is disposed above the windshield 140, and the light source receiving device 120 is disposed below the windshield 140. By disposing the light source emitting device 110 above the windshield 140 and the light source receiving device 120 below the windshield 140, the detection area of the rainfall sensor can be increased, and the detection accuracy of the light source receiving device 120 is not affected by the excessively long distance between the light source receiving device 120 and the light source receiving device 120.
In the present embodiment, the predetermined angle is 45 degrees in order to ensure the density of the infrared rays at the windshield 140. The infrared ray penetrates into the windshield 140 at a preset angle of 45 degrees, so that when the infrared ray is totally reflected in the windshield 140, the density of the infrared ray can be ensured, and the rainfall on the windshield 140 can be accurately detected.
In the present embodiment, the light source emitting device 110 and the light source receiving device 120 are multiple sets for detecting a larger area and detecting more accurately. By arranging the plurality of sets of the light source emitting devices 110 and the light source receiving devices 120, the plurality of sets of the light source emitting devices 110 and the light source receiving devices 120 are arranged in parallel, a larger area on the windshield can be detected, and the rainfall on the windshield 140 can be detected more accurately by the plurality of sets of the light source emitting devices 110 and the light source receiving devices 120.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (10)
1. An automobile rainfall sensor is characterized by comprising a light source emitting device and a light source receiving device;
the light source emitting device is arranged at one end of the windshield and used for emitting infrared rays into the windshield at a preset angle, and the infrared rays are transmitted to the other end of the windshield through total reflection of the windshield;
the light source receiving device is arranged at the other end of the windshield and used for receiving infrared rays emitted by the light source emitting device which is totally emitted in the windshield and generating an electric signal according to the intensity of the received infrared rays.
2. The vehicular rainfall sensor of claim 1, wherein the light source emitting device and the light source receiving device are both disposed inside a windshield.
3. The automotive rain sensor according to claim 1, wherein the light source emitting device is disposed above a windshield and the light source receiving device is disposed below the windshield.
4. The automotive rain sensor according to claim 1, wherein the predetermined angle is 45 degrees.
5. The automotive rain sensor according to claim 1, wherein the light source emitting means and the light source receiving means are provided in plural sets.
6. An automobile capable of automatically adjusting a windscreen wiper is characterized by comprising an automobile rainfall sensor, a windscreen wiper controller and the windscreen wiper, wherein the automobile rainfall sensor comprises a light source transmitting device and a light source receiving device;
the light source emitting device is arranged at one end of the windshield and used for emitting infrared rays into the windshield at a preset angle, and the infrared rays are transmitted to the other end of the windshield through total reflection of the windshield;
the light source receiving device is arranged at the other end of the windshield and is used for receiving infrared rays emitted by the light source emitting device which is totally emitted in the windshield, generating an electric signal according to the intensity of the received infrared rays and sending the electric signal to the wiper controller;
the wiper controller is used for controlling the wiper to work according to the received electric signal sent by the light source receiving device.
7. The automobile of claim 6, wherein the light source emitting device and the light source receiving device are both disposed inside the windshield.
8. The automobile of claim 6, wherein the light source emitting device is disposed above the windshield and the light source receiving device is disposed below the windshield.
9. The automobile of automatically adjusting wipers according to claim 6, characterized in that the preset angle is 45 degrees.
10. The automobile for automatically adjusting wipers according to claim 6, wherein the automobile rain sensor comprises a plurality of sets of light source emitting devices and light source receiving devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062915.6U CN210666080U (en) | 2019-11-26 | 2019-11-26 | Automobile rainfall sensor and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062915.6U CN210666080U (en) | 2019-11-26 | 2019-11-26 | Automobile rainfall sensor and automobile |
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| Publication Number | Publication Date |
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| CN210666080U true CN210666080U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922062915.6U Active CN210666080U (en) | 2019-11-26 | 2019-11-26 | Automobile rainfall sensor and automobile |
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| CN (1) | CN210666080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386705A (en) * | 2021-07-20 | 2021-09-14 | 中国重汽集团济南动力有限公司 | Intelligent control system and control method for snow wax vehicle |
| WO2022267657A1 (en) * | 2021-06-24 | 2022-12-29 | 中兴通讯股份有限公司 | Method and apparatus for identifying water flow into screen, and electronic device |
-
2019
- 2019-11-26 CN CN201922062915.6U patent/CN210666080U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022267657A1 (en) * | 2021-06-24 | 2022-12-29 | 中兴通讯股份有限公司 | Method and apparatus for identifying water flow into screen, and electronic device |
| CN113386705A (en) * | 2021-07-20 | 2021-09-14 | 中国重汽集团济南动力有限公司 | Intelligent control system and control method for snow wax vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 351100 no.729 Lihan Avenue, Shixi village, Jiangkou Town, Hanjiang District, Putian City, Fujian Province Patentee after: Yundu New Energy Automobile Co.,Ltd. Address before: 351100 no.729 Lihan Avenue, Shixi village, Jiangkou Town, Hanjiang District, Putian City, Fujian Province Patentee before: FJ MOTOR GROUP, YUDO NEW-ENERGY AUTOMOBILE Co.,Ltd. Address after: 351100 no.729 Lihan Avenue, Shixi village, Jiangkou Town, Hanjiang District, Putian City, Fujian Province Patentee after: Yundu New Energy Vehicle Co.,Ltd. Address before: 351100 no.729 Lihan Avenue, Shixi village, Jiangkou Town, Hanjiang District, Putian City, Fujian Province Patentee before: Yundu New Energy Automobile Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |