TWI478831B - Car secure maintenance system and maintenance method thereof - Google Patents
Car secure maintenance system and maintenance method thereof Download PDFInfo
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- TWI478831B TWI478831B TW098145930A TW98145930A TWI478831B TW I478831 B TWI478831 B TW I478831B TW 098145930 A TW098145930 A TW 098145930A TW 98145930 A TW98145930 A TW 98145930A TW I478831 B TWI478831 B TW I478831B
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Description
本發明涉及安全維護系統，更具體地，涉及一種行車安全維護系統及其維護方法。 The present invention relates to a security maintenance system, and more particularly to a driving safety maintenance system and a maintenance method thereof.
駕駛員在行車過程中經常會遇到一些惡劣天氣，如下雨天，擋風玻璃上會產生遮擋物遮擋住駕駛員的行車視線，如雨滴灑落在擋風玻璃上，給駕駛員帶來較差的視覺效果，從而影響行車的安全。 The driver often encounters some bad weather during the driving process. In the rainy days, the windshield will block the driver's driving sight, such as raindrops falling on the windshield, giving the driver a poor vision. The effect, which affects the safety of driving.
當雨滴灑落在擋風玻璃上時，駕駛員必須手動開啟雨刷來刷除擋風玻璃上的雨水，並且需要根據雨量的大小來手動調整雨刷刮水的頻率，以此保持一個較好的行車視線。然而，以上消除擋風玻璃上的遮擋物都必須駕駛員手動操作完成，而駕駛員在行車過程中完成該手動動作很容易分心，易發生交通事故。 When the raindrops are spilled on the windshield, the driver must manually open the wiper to remove the rain on the windshield, and manually adjust the frequency of the wiper according to the amount of rain to maintain a better view of the road. . However, the above-mentioned elimination of the obstruction on the windshield must be completed manually by the driver, and the driver can easily distract the manual operation during the driving process, which is prone to traffic accidents.
為了解決上述存在的問題，本發明的目的在於，提供一種行車安全維護系統，其包括一雨刷，一拍攝單元，用於即時拍攝汽車擋風玻璃上遮擋物的立體影像；一存儲單元，用於存儲一雨滴的類似圓形輪廓狀影像的銳利度；一圖像截取單元，用於截取拍攝單元拍攝的一預定時間內擋風玻璃上遮擋物的立體影像；一圖像處 理單元，用於對該截取的擋風玻璃上遮擋物進行影像邊緣化處理，得到該影像的銳利度，該影像的銳利度包括影像的形狀及面積參數；及一圖像判斷單元，用於判斷擋風玻璃上遮擋物影像的銳利度是否屬於一預定範圍，當判斷出影像的銳利度不屬於該預定範圍時，還用於判斷該影像的銳利度是否為存儲單元中的雨滴的類似圓形輪廓狀影像的銳利度，當判斷出擋風玻璃上遮擋物為類似圓形的輪廓狀雨滴時，該圖像判斷單元啟動雨刷。 In order to solve the above problems, an object of the present invention is to provide a driving safety maintenance system including a wiper, a shooting unit for instantly capturing a stereoscopic image of an obstruction on a windshield of a car; a storage unit for A sharpness of a circular contoured image that stores a raindrop; an image capture unit for capturing a stereoscopic image of the obstruction on the windshield for a predetermined time captured by the photographing unit; a unit for performing image edge processing on the intercepted windshield image to obtain sharpness of the image, the sharpness of the image includes image shape and area parameters; and an image determining unit for Determining whether the sharpness of the image of the obstruction on the windshield belongs to a predetermined range, and when determining that the sharpness of the image does not belong to the predetermined range, determining whether the sharpness of the image is a similar circle of raindrops in the storage unit The sharpness of the contoured image, when it is judged that the obstruction on the windshield is a contoured raindrop similar to a circle, the image judging unit activates the wiper.
本發明還提供一種行車安全維護系統的維護方法，該方法包括步驟：存儲一雨滴的類似圓形輪廓狀影像的銳利度；即時拍攝汽車擋風玻璃上遮擋物的立體影像；截取拍攝的一預定時間內擋風玻璃上遮擋物的立體影像；對該截取的擋風玻璃上遮擋物進行影像邊緣化處理，得到該影像的銳利度，該影像的銳利度包括影像的形狀及面積參數；判斷擋風玻璃遮擋物的影像銳利度是否屬於一預定範圍；如果影像的銳利度不屬於該預定範圍，則判斷該影像的銳利度是否為存儲的雨滴的類似圓形輪廓狀影像的銳利度；及如果是，則啟動雨刷。 The invention also provides a maintenance method for a driving safety maintenance system, the method comprising the steps of: storing a sharpness of a circular contour image of a raindrop; instantly capturing a stereoscopic image of the obstruction on the windshield of the automobile; intercepting a predetermined reservation a stereoscopic image of the obstruction on the windshield; the edge of the intercepted windshield is image edged to obtain the sharpness of the image, and the sharpness of the image includes the shape and area parameters of the image; Whether the image sharpness of the windshield obstruction belongs to a predetermined range; if the sharpness of the image does not belong to the predetermined range, it is determined whether the sharpness of the image is the sharpness of a similar circular contour image of the stored raindrop; Yes, start the wiper.
本發明一種行車安全維護系統及其維護方法，其根據擋風玻璃上的影像情況判斷外面是否在下雨及計算雨滴落在擋風玻璃上的頻率來自動啟動雨刷及調整雨刷刮水的頻率，從而可免除駕駛員在行車駕駛過程中需分心來啟動雨刷及調整雨刷刮水的頻率，保持行車的安全。 The invention relates to a driving safety maintenance system and a maintenance method thereof, which can determine whether the outside is raining and calculate the frequency of raindrops falling on the windshield according to the image on the windshield to automatically activate the wiper and adjust the frequency of the wiper wiping, thereby It can eliminate the driver's distraction during the driving process to start the wiper and adjust the frequency of the wiper to keep the driving safe.
1‧‧‧行車安全維護系統 1‧‧‧Driving Safety Maintenance System
10‧‧‧汽車發動單元 10‧‧‧Automobile engine unit
20‧‧‧拍攝單元 20‧‧‧ Shooting unit
30‧‧‧處理單元 30‧‧‧Processing unit
32‧‧‧圖像截取單元 32‧‧‧Image Capture Unit
34‧‧‧圖像處理單元 34‧‧‧Image Processing Unit
36‧‧‧圖像判斷單元 36‧‧‧Image Judging Unit
38‧‧‧計算單元 38‧‧‧Computation unit
40‧‧‧雨刷 40‧‧‧ wiper
圖1是本發明行車安全維護系統的硬體模組圖；及圖2是本發明行車安全維護系統的維護方法流程圖。 1 is a hardware module diagram of a driving safety maintenance system of the present invention; and FIG. 2 is a flow chart of a maintenance method of the driving safety maintenance system of the present invention.
圖1是本發明行車安全維護系統的硬體模組圖。該行車安全維護系統1用在各種類型的汽車室內。該行車安全維護系統1包括一汽車發動單元10、一拍攝單元20、一處理單元30、一雨刷40及一存儲單元50。該汽車發動單元10用於發動一汽車。該汽車在駕駛員的控制下行駛。該拍攝單元20用於即時拍攝駕駛員前方擋風玻璃上遮擋物的立體影像，該拍攝單元20可架設於車內後照鏡上。該雨刷40用於刮除擋風玻璃上的遮擋物，如雨滴。該存儲單元50用於存儲雨滴的類似圓形輪廓狀影像的銳利度。 1 is a hardware module diagram of a driving safety maintenance system of the present invention. The driving safety maintenance system 1 is used in various types of automobile interiors. The driving safety maintenance system 1 includes a vehicle starting unit 10, a shooting unit 20, a processing unit 30, a wiper 40, and a storage unit 50. The car engine unit 10 is used to start a car. The car is driven under the control of the driver. The photographing unit 20 is configured to instantly capture a stereoscopic image of an obstruction on the front windshield of the driver, and the photographing unit 20 can be mounted on the rear mirror of the vehicle. The wiper 40 is used to scrape off obstructions on the windshield, such as raindrops. The storage unit 50 is used to store the sharpness of a similar circular contour image of a raindrop.
該處理單元30進一步包括一圖像截取單元32、一圖像處理單元34、一圖像判斷單元36及一計算單元38。該圖像截取單元32用於截取拍攝單元20拍攝的一預定時間內擋風玻璃上遮擋物的立體影像。該圖像處理單元34用於對該截取的擋風玻璃上遮擋物的立體影像進行影像邊緣化處理，得到該影像的銳利度，該銳利度包括影像的形狀及面積等參數。如當雨滴灑落在擋風玻璃上時，落下的雨滴在擋風玻璃上的形狀為一個的類似圓形輪廓狀，該圖像處理單元34對該雨滴的類似圓形輪廓狀影像進行影像邊緣化處理，得出雨滴在擋風玻璃上的影像銳利度。該圖像判斷單元36用於判斷擋風玻璃上遮擋物的立體影像的銳利度是否屬於一預定範圍，即判斷擋風玻璃上遮擋物的立體影像的銳利度是否良好，若影像的銳利度屬於該預定範圍，說明駕駛員前方的行車視線良好；若影像的銳利度不屬於該預定範圍，說明擋風玻璃上的遮擋物影響了駕駛員前方的行車視線，將導致無法準確判斷前方行車的路況。 The processing unit 30 further includes an image intercepting unit 32, an image processing unit 34, an image determining unit 36, and a calculating unit 38. The image capturing unit 32 is configured to intercept a stereoscopic image of the obstruction on the windshield captured by the photographing unit 20 for a predetermined time. The image processing unit 34 is configured to perform image edge processing on the stereoscopic image of the obstructed windshield on the intercepted windshield to obtain the sharpness of the image, and the sharpness includes parameters such as the shape and the area of the image. For example, when raindrops are scattered on the windshield, the falling raindrops have a circular shape on the windshield, and the image processing unit 34 performs image marginalization on the circular contoured image of the raindrops. Processing, the image sharpness of the raindrops on the windshield. The image determining unit 36 is configured to determine whether the sharpness of the stereoscopic image of the obstructing object on the windshield belongs to a predetermined range, that is, whether the sharpness of the stereoscopic image of the obstructing object on the windshield is good, if the sharpness of the image belongs to The predetermined range indicates that the driving sight in front of the driver is good; if the sharpness of the image does not belong to the predetermined range, the covering on the windshield affects the driving sight in front of the driver, which may result in an inaccurate determination of the road ahead. .
當圖像判斷單元36判斷出擋風玻璃上遮擋物的立體影像的銳利度 不屬於該預定範圍時，該圖像判斷單元36進一步判斷該影像的銳利度是否等於存儲單元50存儲的影像銳利度。當判斷出擋風玻璃上遮擋物的影像銳利度為存儲單元50存儲的影像銳利度時，說明擋風玻璃上的遮擋物為雨滴，該計算單元38根據圖像截取單元32截取的立體影像來計算雨滴落在擋風玻璃上的頻率，及該圖像判斷單元36根據雨滴落在擋風玻璃上的頻率判斷雨量的大小來啟動雨刷40及調整雨刷40刮雨的頻率。 When the image determining unit 36 determines the sharpness of the stereoscopic image of the obstruction on the windshield When it does not belong to the predetermined range, the image determining unit 36 further determines whether the sharpness of the image is equal to the image sharpness stored by the storage unit 50. When it is determined that the image sharpness of the obstruction on the windshield is the image sharpness stored in the storage unit 50, the obstruction on the windshield is a raindrop, and the calculating unit 38 is based on the stereoscopic image captured by the image capturing unit 32. The frequency at which the raindrops fall on the windshield is calculated, and the image judging unit 36 judges the magnitude of the rain amount based on the frequency at which the raindrops fall on the windshield to activate the wiper 40 and adjust the frequency at which the wiper 40 wipes rain.
圖2是本發明行車安全維護系統的維護方法流程圖。該行車安全維護系統1的汽車發動單元10發動汽車，該汽車在駕駛員的控制下行駛，該方法流程開始(步驟S200)。該拍攝單元20即時拍攝駕駛員前方擋風玻璃上遮擋物的立體影像(步驟S201)。該圖像截取單元32截取拍攝單元20拍攝的該預定時間內擋風玻璃上遮擋物的立體影像(步驟S202)。該圖像處理單元34用於對該截取的立體影像進行邊緣化處理，得到該影像的銳利度(步驟S203)。該圖像判斷單元36判斷擋風玻璃上遮擋物的立體影像的銳利度是否屬於該預定範圍(步驟S204)。如果該擋風玻璃上遮擋物影像的銳利度屬於該預定範圍，說明擋風玻璃前方行車視線良好，該方法流程結束。 2 is a flow chart of a maintenance method of the driving safety maintenance system of the present invention. The vehicle engine unit 10 of the driving safety maintenance system 1 starts the vehicle, and the vehicle runs under the control of the driver, and the method flow starts (step S200). The photographing unit 20 instantly captures a stereoscopic image of the obstruction on the front windshield of the driver (step S201). The image capturing unit 32 intercepts a stereoscopic image of the obstruction on the windshield captured by the imaging unit 20 (step S202). The image processing unit 34 is configured to perform edge processing on the captured stereoscopic image to obtain the sharpness of the image (step S203). The image determination unit 36 determines whether the sharpness of the stereoscopic image of the obstruction on the windshield belongs to the predetermined range (step S204). If the sharpness of the image of the obstruction on the windshield belongs to the predetermined range, indicating that the front view of the windshield is good, the method flow ends.
如果圖像判斷單元36判斷出擋風玻璃上遮擋物的立體影像的銳利度不屬於該預定範圍，說明遮擋物影響了駕駛員前方的行車路線，該圖像判斷單元36進一步判斷擋風玻璃上遮擋物的立體影像的銳利度是否為存儲單元50存儲的雨滴的類似圓形輪廓狀影像的銳利度(步驟S205)。如果不是，則該方法流程結束。如果該圖像判斷單元36判斷出擋風玻璃上遮擋物的立體影像的銳利度為雨滴 的類似圓形輪廓狀影像的銳利度，該計算單元38根據截取的影像計算雨滴落在擋風玻璃上的頻率(步驟S206)。該圖像判斷單元36根據計算的雨滴落在擋風玻璃上的頻率判斷雨量的大小來啟動雨刷40及調整雨刷40刮雨的頻率(步驟S207)。 If the image determining unit 36 determines that the sharpness of the stereoscopic image of the obstructing object on the windshield does not belong to the predetermined range, indicating that the obstructing object affects the driving route ahead of the driver, the image determining unit 36 further determines that the windshield is on the windshield. Whether the sharpness of the stereoscopic image of the obstruction is the sharpness of a similar circular contour image of the raindrop stored in the storage unit 50 (step S205). If not, the method flow ends. If the image determining unit 36 determines that the sharpness of the stereoscopic image of the obstruction on the windshield is raindrops Similar to the sharpness of the circular contour image, the calculation unit 38 calculates the frequency at which the raindrop falls on the windshield based on the intercepted image (step S206). The image determination unit 36 determines the magnitude of the rain amount based on the calculated frequency of the raindrops falling on the windshield to activate the wiper 40 and adjust the frequency of the wiper 40 to wipe the rain (step S207).
1‧‧‧行車安全維護系統 1‧‧‧Driving Safety Maintenance System
10‧‧‧汽車發動單元 10‧‧‧Automobile engine unit
20‧‧‧拍攝單元 20‧‧‧ Shooting unit
30‧‧‧處理單元 30‧‧‧Processing unit
32‧‧‧圖像截取單元 32‧‧‧Image Capture Unit
34‧‧‧圖像處理單元 34‧‧‧Image Processing Unit
36‧‧‧圖像判斷單元 36‧‧‧Image Judging Unit
38‧‧‧計算單元 38‧‧‧Computation unit
40‧‧‧雨刷 40‧‧‧ wiper
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| TW098145930A TWI478831B (en) | 2009-12-30 | 2009-12-30 | Car secure maintenance system and maintenance method thereof |
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| TW201121820A TW201121820A (en) | 2011-07-01 |
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| TWI494899B (en) | 2012-12-19 | 2015-08-01 | Ind Tech Res Inst | Method for in-image periodic noise reparation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277120A (en) * | 1999-06-11 | 2000-12-20 | 怡利电子工业股份有限公司 | Automatic optical control system for windshield wiper |
| US20050206511A1 (en) * | 2002-07-16 | 2005-09-22 | Heenan Adam J | Rain detection apparatus and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277120A (en) * | 1999-06-11 | 2000-12-20 | 怡利电子工业股份有限公司 | Automatic optical control system for windshield wiper |
| US20050206511A1 (en) * | 2002-07-16 | 2005-09-22 | Heenan Adam J | Rain detection apparatus and method |
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