KR20170057003A - Apparatus for sensing raindrops for use in car and control method thereof - Google Patents

Apparatus for sensing raindrops for use in car and control method thereof Download PDF

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Publication number
KR20170057003A
KR20170057003A KR1020150160565A KR20150160565A KR20170057003A KR 20170057003 A KR20170057003 A KR 20170057003A KR 1020150160565 A KR1020150160565 A KR 1020150160565A KR 20150160565 A KR20150160565 A KR 20150160565A KR 20170057003 A KR20170057003 A KR 20170057003A
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KR
South Korea
Prior art keywords
rainwater
amount
image
wiper
unit
Prior art date
Application number
KR1020150160565A
Other languages
Korean (ko)
Inventor
박대영
Original Assignee
주식회사 서연전자
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Filing date
Publication date
Application filed by 주식회사 서연전자 filed Critical 주식회사 서연전자
Priority to KR1020150160565A priority Critical patent/KR20170057003A/en
Publication of KR20170057003A publication Critical patent/KR20170057003A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0833—Optical rain sensor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0803—Intermittent control circuits
    • B60S1/0807—Intermittent control circuits using electronic control means, e.g. tubes, semiconductors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0833—Optical rain sensor
    • B60S1/0844—Optical rain sensor including a camera
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D41/00—Fittings for identifying vehicles in case of collision; Fittings for marking or recording collision areas
    • H04N5/2257—

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present invention provides a black box comprising: a black box main body; A photographing unit provided inside the black box body for photographing a running state of the vehicle ahead and a rainwater image of the windshield; An image analyzer for analyzing a rainwater image photographed by the photographing unit to calculate an amount of rainwater; And a wiper control unit for controlling the driving speed of the wiper provided on the windshield in accordance with the amount of the rainwater calculated by the image analysis unit, and a control method thereof.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rainwater sensing apparatus and a control method thereof,

The present invention relates to a rainwater sensing apparatus for a vehicle and a control method thereof. More specifically, the present invention relates to a rainwater sensing apparatus for a vehicle and a control method thereof, And a method of controlling the same.

Normally, a vehicle is infiltrated with windshield glass to prevent inflow of wind or rainwater from the front during driving. If foreign matter such as dust accumulates on the surface of the windshield glass, the front view is covered and the clock is blurred. In particular, when operating in snow or rain, the moisture on the surface of the windshield glass must be quickly removed to look ahead. To this end, the car is equipped with a wiper device to remove dust and rainwater on the surface of the windshield glass.

In addition, in the case of a luxury vehicle, a rain sensor is provided for accurately detecting the amount of rainwater falling on the windshield glass and automatically adjusting the operating speed of the wiper. The rain sensor includes a light emitting portion and a light receiving element. The light emitting portion transmits light to the light receiving element, detects rainwater according to the transmitted amount, and converts the rainwater into a voltage difference to control the speed of the wiper motor.

However, the rainwater sensing apparatus for vehicles and the control method thereof according to the related art have a problem in that the cost of the components is increased due to the additional rain sensor, and the sensitivity of the sensor is significantly reduced by using the CDS optical sensor as the rain sensor .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle rainwater sensing apparatus and a control method thereof.

The object of the present invention is to detect the rainwater through the photographing unit provided inside the black box body and to analyze the driving speed of the wiper. j

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, according to an embodiment of the present invention, there is provided a rainwater sensing apparatus for a vehicle and a control method thereof, the rainwater sensing apparatus comprising: a black box main body; A photographing unit provided inside the black box body for photographing a running state of the vehicle ahead and a rainwater image of the windshield; An image analyzer for analyzing a rainwater image photographed by the photographing unit to calculate an amount of rainwater; And a wiper control unit for controlling the driving speed of the wiper provided on the windshield according to the amount of the rainwater calculated by the image analysis unit.

In addition, the image analysis unit may include an amount of rainwater by analyzing an amount of raindrops formed in a predetermined portion of the rainwater images photographed at the photographing unit.

Also, the image analyzer is provided inside the black box main body, and includes signaling the calculated amount of rainwater and transmitting the signal to the wiper controller.

In addition, the wiper control portion includes a black box main body portion coupled to generate a speed control signal of the wiper according to the amount of rainwater.

In addition, the photographing unit provided inside the black box body part photographs a rainwater image of the front of the vehicle and the windshield; Analyzing the rainwater image photographed by the photographing unit to calculate the amount of rainwater; Signaling the amount of rainwater calculated in the step of calculating the amount of rainwater and transmitting the signal to the wiper control unit; And controlling the driving speed of the wiper provided on the windshield in accordance with the signal transmitted to the wiper control unit.

The details of other embodiments are included in the detailed description and drawings.

According to the rainwater sensing apparatus for a vehicle and the control method therefor, one or more of the following effects can be obtained.

First, it is possible to reduce the cost by reducing the number of parts by detecting rainwater by the photographing part provided inside the black box body part without providing a separate rain sensor.

Second, it can provide convenience to the user by measuring the amount of rainwater more precisely than the CDS optical sensor, which is a conventional rain sensor, and controlling the wiper.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a rainwater sensing apparatus for a vehicle according to the present invention.
2 is a view showing a configuration of a rainwater sensing apparatus for a vehicle according to the present invention.
3 is a flowchart illustrating a procedure of a rainwater sensing apparatus for a vehicle according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to the drawings for explaining a vehicle rainwater sensing apparatus and a control method thereof according to embodiments of the present invention.

A preferable vehicle rainwater sensing apparatus and its control method can be changed by a person having ordinary skill in the art, and the present embodiment is a case of a rainwater sensing apparatus for a vehicle and a control method thereof.

FIG. 1 is a view showing a configuration of a rainwater sensing apparatus for a vehicle according to the present invention, and FIG. 2 is a diagram showing a configuration of a rainwater sensing apparatus for a vehicle according to the present invention.

1 and 2, a rainwater sensing apparatus for a vehicle according to an embodiment of the present invention includes a black box main body 100; A photographing unit 110 provided inside the black box body 100 for photographing a running state of the vehicle ahead and a rainwater image of the windshield 200; An image analyzer 120 for analyzing the rainwater image taken by the photographing unit 110 to calculate the amount of rainwater; And a wiper control unit 220 for controlling the driving speed of the wiper 210 provided on the windshield 200 according to the amount of rainwater calculated by the image analysis unit 120.

The black box main body 100 is provided inside the vehicle, and can photograph the running state of the front of the vehicle. The black box main body 100 may include a photographing unit 110 and an image analyzing unit 120, which will be described later.

The black box main body 100 stores and records (including voice) the surroundings of the vehicle when driving or parking the vehicle, through which the driving speed and direction of the vehicle, the position of the vehicle measured through GPS, By confirming, it can help to analyze the cause of similar accident.

The photographing unit 110 is installed inside the vehicle, and can acquire an image outside the vehicle. And may be installed at an appropriate position for acquiring an external image. For example, as shown in FIG. 1, an image of the front of the vehicle may be acquired in front of the vehicle.

In addition, one photographing unit 110 or two photographing units 110 may be provided. When the photographing unit 110 is one, the photographing unit 110 photographs the front road image of the vehicle through the windshield 200 of the vehicle. When there are two photographing units 110, the photographing unit 110 can photograph a front road image of the vehicle and an internal image of the vehicle.

The photographing unit 110 can photograph a running state in front of the vehicle and a rainwater image of the windshield 200. [ The photographing unit 110 may photograph a rainwater image and output it to an image analyzing unit 120, which will be described later.

The image analysis unit 120 may analyze the rainwater image taken by the photographing unit 110 to calculate the amount of rainwater. More specifically, the image analyzing unit 120 may calculate the amount of rainwater by analyzing the amount of raindrops formed in a predetermined portion of the rainwater images photographed by the photographing unit 110.

The image analyzer 120 is provided inside the black box main body 100 and can transmit the calculated amount of the rainwater to the wiper controller 220 which will be described later.

The wiper control unit 220 can control the driving speed of the wiper 210 provided in the windshield 200 according to the amount of rainwater calculated by the image analysis unit 120.

The image analysis unit 120 may store or analyze images of the surroundings of the vehicle when the vehicle is running or when the vehicle is parked (when the weather shield 200 is not rainy) .

The wiper control unit 220 is interlocked with the black box main body 100 and can control the speed of the wiper 210 by generating a speed control signal of the wiper 210 according to the amount of rainwater. More specifically, signals may be generated differently according to the amount of rainwater, and signals may be transmitted to the motor 221 driving the wiper 210. That is, the wiper control unit 220 can control the driving speed of the wiper by dividing the steps such as stop, low speed, and high speed through signals received from the image analysis unit 120. Further, the wiper control unit 220 can transmit signals such as stop, low speed, and high speed to drive the motor 221 interlocked with the wiper 210.

The wiper control unit 220 may include a motor 221 for controlling the wiper 210. The wiper 210 may be operated by receiving a signal transmitted from the motor 221. [ Also, the wiper 210 may be operated by the user's input.

3 is a flowchart illustrating a procedure of a rainwater sensing apparatus for a vehicle according to the present invention.

3, the method for controlling a rainwater sensing device for a vehicle according to an embodiment of the present invention is characterized in that a photographing part 110 provided inside a black box body part 100 is disposed in front of a vehicle and on a side of a windshield 200 Photographing a rainwater image (S100); Analyzing the rainwater image taken by the photographing unit 110 to calculate the amount of rainwater (S200); A step S300 of signaling the amount of rainwater calculated in the step S200 of calculating the amount of rainwater and transmitting the signal to the wiper control unit 220; And controlling the driving speed of the wiper 210 provided in the windshield 200 according to the signal transmitted to the wiper control unit 220 (S400).

Hereinafter, a method of controlling a rainwater sensing apparatus for a vehicle according to an embodiment of the present invention will be described.

First, the photographing unit 110 provided inside the black box body 100 photographs the front running state of the vehicle and the rainwater image of the windshield 200 (S100). The photographing unit 110 photographs the surroundings of the vehicle when driving or parking the vehicle, and photographs the image of the rainwater that forms on the windshield 200.

Next, the amount of rainwater is calculated by analyzing the rainwater image photographed by the photographing unit 110 (S200). When rainwater begins to be deposited on the windshield 200, the image analysis unit 120 receives the rainwater image from the photographing unit 110 and calculates the amount of rainwater.

The amount of rainwater calculated in step S200 of calculating the amount of rainwater is signaled and transmitted to the wiper control unit 220 (S200). The image analyzer 120 may generate a different signal according to the calculated amount of rainwater and transmit the signal to the wiper controller 220.

And controls the driving speed of the wiper 210 provided in the windshield 200 according to the signal transmitted to the wiper control unit 220 (S400). The wiper control unit 220 divides steps such as stop, low speed, and high speed through signals received from the image analysis unit 120 to control the wiper driving speed. In addition, the wiper control unit 220 may transmit signals such as stop, low speed, and high speed to drive the motor 221 interlocked with the wiper 210.

According to a preferred embodiment of the rainwater sensing apparatus for a vehicle and the control method therefor according to the present invention configured as described above, rainwater is sensed by a photographing unit provided inside the black box body unit without a separate rain sensor, It is possible to reduce the cost by reducing the number of rain gauges and to provide advantages to the user by controlling the wipers by measuring the amount of rainwater more precisely than the CDS optical sensor which is a conventional rain sensor.

The vehicle rainwater sensing apparatus and the control method thereof according to the embodiments are not limited to the configuration and method of the embodiments described above, but the embodiments may be applied to all or part of the embodiments so that various modifications can be made. Some of which may be selectively combined.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention.

<Detailed Description of Main Drawings>
100: black box main body 110:
120: Image analysis unit
200: Windshield 210: Wiper
220: wiper control unit 221: motor

Claims (5)

A black box main body part;
A photographing unit provided in the black box body for photographing a running state of the vehicle ahead and a rainwater image of the windshield;
An image analyzer for analyzing the rainwater image photographed by the photographing unit to calculate an amount of rainwater;
And a wiper control unit for controlling the driving speed of the wiper provided on the windshield in accordance with the amount of the rainwater calculated by the image analysis unit.
The method according to claim 1,
Wherein the image analyzing unit calculates an amount of rainwater by analyzing an amount of raindrops of a predetermined portion of the rainwater images photographed by the photographing unit.
The method according to claim 1,
Wherein the image analyzing unit is provided inside the black box body part and transmits the calculated amount of the rainwater to the wiper control unit.
The method according to claim 1,
The wiper control unit includes:
And a speed control signal of the wiper is generated in accordance with the amount of the rainwater.
Photographing a rainwater image on the front of the vehicle and the windshield of the photographing unit provided inside the black box body;
Analyzing the rainwater image photographed by the photographing unit to calculate an amount of rainwater;
Signaling the amount of the rainwater calculated in the step of calculating the amount of the rainwater and transmitting the signal to the wiper control unit;
And controlling a driving speed of a wiper provided on the windshield in accordance with a signal transmitted to the wiper control unit.
KR1020150160565A 2015-11-16 2015-11-16 Apparatus for sensing raindrops for use in car and control method thereof KR20170057003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150160565A KR20170057003A (en) 2015-11-16 2015-11-16 Apparatus for sensing raindrops for use in car and control method thereof

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Application Number Priority Date Filing Date Title
KR1020150160565A KR20170057003A (en) 2015-11-16 2015-11-16 Apparatus for sensing raindrops for use in car and control method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109229062A (en) * 2018-09-18 2019-01-18 广州小鹏汽车科技有限公司 A kind of automatic wiper control system and method
KR20220060592A (en) 2020-11-04 2022-05-12 현대모비스 주식회사 Vehicle controlling system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109229062A (en) * 2018-09-18 2019-01-18 广州小鹏汽车科技有限公司 A kind of automatic wiper control system and method
KR20220060592A (en) 2020-11-04 2022-05-12 현대모비스 주식회사 Vehicle controlling system and method

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