TWI459333B - An Attractive Force Detection Device and Its Method for Interactive Voice - Google Patents
An Attractive Force Detection Device and Its Method for Interactive Voice Download PDFInfo
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本發明是有關一種偵測裝置及其方法,特別是一種互動式語音提問之駕駛注意力偵測的裝置及其方法。The invention relates to a detecting device and a method thereof, in particular to an interactive voice questioning driving attention detecting device and a method thereof.
關於行車駕駛的道路安全等等議題,近年來逐漸受到重視。由於駕駛的不正確操作而導致的交通安全事故經常發生,主因是由於駕駛睡眠不足所導致的疲勞、開車時間過長而沒有適度的休息,或是酒後駕車等等。精神渙散、注意力不集中等等,駕駛的精神狀況不佳而導致車禍事故的發生。為了解決此類問題,有多種技術方案已被提出。如中國專利第200910310326.3號,「駕駛監控裝置及方法」,主要是透過影像的擷取,偵測駕駛者的眼睛區域與放在方向盤的手,判斷駕駛的手是否放在方向盤上的正確區域以及眼睛是否張開或是因為疲勞而閉上。Issues such as road safety for driving and driving have gradually gained attention in recent years. Traffic safety accidents caused by improper operation of driving often occur, mainly due to fatigue caused by lack of driving sleep, excessive driving time without proper rest, or drunk driving. The spirit is dissipated, the concentration is not concentrated, etc., and the mental state of driving is not good, resulting in a car accident. In order to solve such problems, various technical solutions have been proposed. For example, Chinese Patent No. 200910310326.3, "Driving Monitoring Device and Method" mainly detects the driver's eye area and the hand placed on the steering wheel through image capture, and determines whether the driving hand is placed in the correct area on the steering wheel and Whether the eyes are open or closed due to fatigue.
美國專利第8,045,766號,「Device,program,and method for determining sleepiness」提供了另一種解決手段,主要是擷取駕駛的臉部影像,透過特定的演算法對臉部進行計算,發現駕駛的精神狀態不好時,利用氣體裝置與安全帶震動裝置喚醒駕駛,甚至是透過煞車控制器予以警示。US Patent No. 8,045,766, "Device, program, and method for determining sleepiness" provides another solution, mainly to capture the facial image of the driving, calculate the face through a specific algorithm, and discover the mental state of driving. When it is not good, use the gas device and the seat belt vibration device to wake up the drive, even through the brake controller.
以上針對道路安全議題,偵測駕駛狀況而加以警示的技術手段,都能合理運作而有一定的效果。然而並不能快速、準確地偵測駕駛的注意力集中程度與精神狀態。The above technical means for detecting road safety problems and detecting the driving situation can be reasonably operated and have certain effects. However, it is not possible to quickly and accurately detect the concentration and mental state of driving.
有鑑於此,本發明提供一種互動式語音提問之駕駛注意力偵測裝置及其方法,以裝置提問、駕駛作答、裝置判定為主要監測的流程。裝置會提出語音提示,駕駛聽到語音提示後,必須做出相應的頭部動作,如眨眼、轉動眼睛等等動作、點頭搖頭等等頭部動作,或是張閉嘴的嘴部動作等等。在一般正常的狀況下,駕駛當然能做出正確的動作,藉此判定駕駛的精神狀態與注意力集中程度。相較於一般習知技術,本發明提供的互動式語音提問之駕駛注意力偵測裝置及其方法,具有操作簡單,執行快速、有效等特點。In view of this, the present invention provides an interactive voice questioning driving attention detecting device and a method thereof, and the device monitoring, driving answering, and device determining are main monitoring processes. The device will present a voice prompt. After the driver hears the voice prompt, he must make corresponding head movements, such as blinking, turning the eyes, etc., shaking his head and other head movements, or opening the mouth of the mouth. Under normal conditions, driving can of course make the correct action, thereby determining the mental state of the driving and the concentration of attention. Compared with the conventional techniques, the present invention provides an interactive voice questioning driving attention detecting device and a method thereof, which are characterized by simple operation, fast execution, and the like.
依據本發明所提供之互動式語音提問之駕駛注意力偵測的裝置,主要包含有取像單元、語音提問單元與安全判斷單元。取像單元可以取得駕駛的影像,語音提問單元可以定時,或隨機的發出語音提示,安全判斷單元用以偵測駕駛影像的變化,判斷是否符合語音提問指令的要求,若駕駛並未做出相應於語音提示的正確動作,則可以選擇性地透過聲音產生單元發出警示訊息,喚醒提示駕駛。The device for driving attention detection based on the interactive voice questioning provided by the invention mainly comprises an image capturing unit, a voice questioning unit and a safety determining unit. The image capturing unit can obtain the driving image, and the voice questioning unit can periodically or randomly issue a voice prompt, and the safety determining unit can detect the change of the driving image to determine whether the voice questioning instruction is met, and if the driving does not make a corresponding In the correct action of the voice prompt, the sound generating unit can selectively send a warning message to wake up the driving.
本發明還提供一種互動式語音提問之駕駛注意力偵測的方法,首先提出語音提問指令,接著取得駕駛的影像,並偵測影像之變化,判斷是否符合語音提問指令的要求,若駕駛的影像變化不符合語音提問指令的要求,就發出警示訊息喚醒駕駛。The invention also provides an interactive voice questioning method for driving attention detection, firstly, a voice questioning instruction is provided, then a driving image is obtained, and a change of the image is detected to determine whether the voice questioning instruction is met, and if the driving image is If the change does not meet the requirements of the voice questioning command, a warning message is sent to wake up the driver.
有關本發明之目的、技術內容與特點,以下舉一較佳實施例並配合圖式予以說明。The object, technical contents and features of the present invention are described below in conjunction with the drawings.
請參考圖1為本發明之裝置架構示意圖。依據本發明所提供之互動式語音提問之駕駛注意力偵測裝置,主要包含有取像單元10、處理單元20、聲音產生單元50、通訊單元60與警示單元70。其中,取像單元10與處理單元20相連,藉以取得駕駛的頭部影像。處理單元20至少包含有語音提問單元40與安全判斷單元30,語音提問單元40可提出語音提問指令,安全判斷單元40則對頭部影像進行運算處理,可判斷駕駛頭部、臉部、甚至是眼部的影像變化,偵測駕駛的頭部、臉部與眼部的動作。Please refer to FIG. 1 for a schematic diagram of the device architecture of the present invention. The driving attention detecting device for interactive voice questioning according to the present invention mainly includes an image capturing unit 10, a processing unit 20, a sound generating unit 50, a communication unit 60, and a warning unit 70. The image capturing unit 10 is connected to the processing unit 20 to obtain a head image of the driving. The processing unit 20 includes at least a voice questioning unit 40 and a security determining unit 30. The voice questioning unit 40 can present a voice questioning command, and the security determining unit 40 performs arithmetic processing on the head image to determine the driving head, the face, and even the The image of the eye changes to detect the movement of the head, face and eyes of the driver.
語音提問單元40所發出的語音提問指令,可以是一種可被駕駛聽到的語音提示,透過聲音產生單元50發出聲音。語音提示有多種變化,比如:先看左後看右命令、先看上後看下命令、先看下後看上命令,繞圈命令、或是眨眼命令等等。駕駛聽到語音提問單元40所提供的語音提問指令,或是語音提示後,必須做出相應的動作,比如眨眼特定次數、眼睛看左看右,或是依據語音提問命令,整個頭部轉動朝左或朝右、點頭搖頭、微笑、嘴巴開閉等等動作。上述語音提示有多種變化,以上僅為範例,並非用以限制本發明之權利範疇。然後,安全判斷單元30將會偵測駕駛連續的影像變化,判斷是否符合語音提問指令的要求。假如駕駛的影像變化不符合語音提問指令的要求,則發出警示訊息,比如同樣透過聲音產生單元50發出聲音,透過如LED燈的警示單元70發出閃爍光,或是可以選擇性地藉由通訊單元60把警示訊息回傳到交通控制中心,提示駕駛的注意力狀態,此設計對於大眾運輸行業來說,是一種非常有效的駕駛狀態回報機制,確保乘客與貨物的安全。The voice questioning command issued by the voice questioning unit 40 may be a voice prompt that can be heard by the driver, and the sound is generated by the sound generating unit 50. There are many changes to the voice prompts, such as: first look at the left and then right command, first look at the next command, first look at the next command, circle command, or blink command. After driving to hear the voice question command provided by the voice questioning unit 40, or the voice prompt, the corresponding action must be made, such as blinking a specific number of times, looking at the left and right eyes, or according to a voice question command, the entire head is turned to the left. Or move to the right, nod your head, smile, open your mouth, and so on. The above voice prompts are subject to various changes, and the above are merely examples and are not intended to limit the scope of the invention. Then, the security judging unit 30 will detect continuous image changes of driving and determine whether the requirements of the voice questioning instruction are met. If the image change of the driving does not meet the requirements of the voice questioning command, a warning message is sent, for example, the sound is generated by the sound generating unit 50, the blinking light is emitted through the warning unit 70 such as the LED light, or the communication unit can be selectively used. 60 warning messages are transmitted back to the traffic control center to remind the driver of the state of attention. This design is a very effective driving state return mechanism for the mass transit industry to ensure the safety of passengers and cargo.
關於本發明提供的互動式語音提問之駕駛注意力偵測裝置,請參考圖4、圖6與圖7來說明實際的使用狀況。本發明之裝置本體100可以選擇性地安置於駕駛座前方,較佳者可在儀表板之上方,如圖4所示。裝置本體100內部裝配有前述的處理單元20以及運作所需的其他電子零組件,攝影機101可擷取駕駛的影像,聲音產生單元102則用於發出語音提問指令,語音提示。駕駛聽到來自聲音產生單元102所發出的語音提示後,應該要做出相應的動作,比如語音提示是:「請先看左後看右」,那麼如圖6與圖7所示,駕駛應該要先朝左看,然後再朝右看。當駕駛做出正確的動作後,就代表駕駛在清醒的狀態,注意力有一定的集中程度。反之,若駕駛沒有做出正確的動作,那麼就會發出警示訊息,如透過聲音產生單元102發出警告聲音喚醒駕駛。Regarding the driving attention detecting device for interactive voice questioning provided by the present invention, please refer to FIG. 4, FIG. 6 and FIG. 7 to explain the actual use situation. The device body 100 of the present invention can be selectively placed in front of the driver's seat, preferably above the instrument panel, as shown in FIG. The device body 100 is internally equipped with the aforementioned processing unit 20 and other electronic components required for operation. The camera 101 can capture images of driving, and the sound generating unit 102 is configured to issue a voice questioning command and a voice prompt. After the driver hears the voice prompt from the sound generating unit 102, the corresponding action should be made. For example, the voice prompt is: "Please look at the left and then look right", then as shown in Fig. 6 and Fig. 7, the driving should be Look to the left first, then look to the right. When the driver makes the correct action, it means that the driver is in a state of waking, and the concentration has a certain concentration. On the other hand, if the driver does not make the correct action, a warning message is issued, such as a warning sound by the sound generating unit 102 to wake up the driving.
關於本發明的互動式語音提問之駕駛注意力偵測的方法,請配合參考圖2、圖3A、圖3B予以詳細說明。首先,裝置發出語音提問指令(S101),語音提問指令可透過聲音產生單元發出語音提示,語音提示有多種可能,如先看左後看右命令、先看上後看下命令、先看下後看上命令、繞圈命令等等。然後,取得駕駛之頭部影像(S102)。對頭部影像進行影像數位處理,而產生眼部搜尋區域(S103),取得駕駛之眼部影像(S104)。關於步驟S103與步驟S104請配合參考圖5,取得駕駛之頭部影像200後,在頭部影像200的範圍內進行影像數位處理,而定義出一個眼部搜尋區域201,並在眼部搜尋區域201之內找到眼部影像202。此外說明,前述步驟S102到S104是選擇性步驟,有相關技術可以直接取得眼部影像,而不用先取得頭部影像後再分析取得眼部影像。The method for detecting the attention of the interactive voice questioning of the present invention will be described in detail with reference to FIG. 2, FIG. 3A, and FIG. 3B. First, the device issues a voice question command (S101), and the voice question command can send a voice prompt through the sound generating unit. The voice prompt has multiple possibilities, such as first reading the left and then right reading, first looking at the next command, and then looking at the first. Look at commands, loop commands, and more. Then, a head image of the driving is obtained (S102). The image processing is performed on the head image to generate an eye search area (S103), and an eye image of the driving is obtained (S104). Referring to FIG. 5 and step S104, after acquiring the head image 200 for driving, the image digit processing is performed within the range of the head image 200, and an eye search area 201 is defined, and the eye search area is defined. An eye image 202 is found within 201. In addition, the foregoing steps S102 to S104 are optional steps, and the related art can directly obtain the eye image without first obtaining the head image and then analyzing and obtaining the eye image.
接續在步驟S104之後,如圖3A所示,偵測眼部影像之變化,取得眼部特徵(S105),並判斷眼部影像之變化,是否符合語音提問指令之要求(S106),假如駕駛有做出相應於語音提問指令的正確動作,比如語音提問指令、語音提示告知駕駛做出:先左後右,而駕駛也做出先看左後看右的眼睛轉動的動作,那麼就可以結束偵測判斷的流程。反之,若駕駛沒有依據語音提問指令做出正確的動作,那麼裝置就會發出警示訊息(S107),喚醒提示駕駛。After the step S104, as shown in FIG. 3A, the change of the eye image is detected, the eye feature is obtained (S105), and the change of the eye image is determined whether the voice request command is met (S106), if the driver has Make the correct action corresponding to the voice question command, such as the voice question command and the voice prompt to inform the driver to make: first left and right, and the driver also makes the action of looking at the left and then right eye, then you can end the investigation. The process of measuring judgment. On the other hand, if the driver does not make a correct action based on the voice question command, the device will issue a warning message (S107) to wake up the driver.
除了偵測駕駛眼睛的轉動之外,也可以偵測駕駛的頭部擺動之動作加以判定。請參考圖2與圖3B,接續在步驟S102之後,也可以選擇性的執行步驟S201,對頭部影像進行影像數位處理(S201),此時的影像數位處理可以對影像做進一步的加強,如強化影像的對比值、亮度等數值,有助於找尋影像中特徵的邊緣。然後,偵測頭部影像之變化,取得頭部特徵(S202),並偵測是否符合語音提問指令之要求(S203),如同前述方法流程,駕駛依據語音提問指令、語音提示的內容,做出正確的動作,那麼就結束偵測判斷的流程。反之則發出警示訊息(S204)來喚醒駕駛。In addition to detecting the rotation of the driving eye, it is also possible to detect the movement of the head of the driving to determine. Referring to FIG. 2 and FIG. 3B, after step S102, step S201 may be selectively performed to perform image digital processing on the head image (S201), and the image digital processing at this time may further enhance the image, such as Enhance the contrast value, brightness and other values of the image to help find the edges of the features in the image. Then, detecting the change of the head image, obtaining the head feature (S202), and detecting whether the voice questioning instruction is met (S203), as in the foregoing method flow, the driving is made according to the content of the voice questioning instruction and the voice prompt. The correct action, then the process of detecting and judging ends. Otherwise, a warning message (S204) is issued to wake up the driving.
雖然本發明揭露較佳實施例如上,然其並非用以限定本發明,本發明領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,本發明之保護範圍當以後附的申請專利範圍所界定者為準。While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the scope of the present invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application attached.
10...取像單元10. . . Image capture unit
20...處理單元20. . . Processing unit
30...安全判斷單元30. . . Safety judgment unit
40...語音提問單元40. . . Voice questioning unit
50...聲音產生單元50. . . Sound generating unit
60...通訊單元60. . . Communication unit
70...警示單元70. . . Warning unit
100...裝置本體100. . . Device body
101...攝影機101. . . camera
102...聲音產生單元102. . . Sound generating unit
200...頭部影像200. . . Head image
201...眼部搜尋區域201. . . Eye search area
202...眼部影像202. . . Eye image
S101...發出語音提問指令S101. . . Issue a voice question command
S102...取得駕駛之頭部影像S102. . . Get the head image of driving
S103...對頭部影像進行影像數位處理,產生眼部搜尋區域S103. . . Perform image digital processing on the head image to generate an eye search area
S104...取得駕駛之眼部影像S104. . . Get the eye image of driving
S105...偵測眼部影像之變化S105. . . Detect changes in eye images
S106...是否符合語音提問指令之要求S106. . . Whether it meets the requirements of the voice questioning instruction
S107...發出警示訊息S107. . . Send a warning message
S201...對頭部影像進行影像數位處理S201. . . Image digital processing of the head image
S202...偵測頭部影像之變化S202. . . Detect changes in head image
S203...是否符合語音提問指令之要求S203. . . Whether it meets the requirements of the voice questioning instruction
S204...發出警示訊息S204. . . Send a warning message
圖1是本發明的裝置架構示意圖。1 is a schematic diagram of the device architecture of the present invention.
圖2是本發明的方法流程示意圖。2 is a schematic flow chart of the method of the present invention.
圖3A是本發明的接續方法流程示意圖。3A is a schematic flow chart of a splicing method of the present invention.
圖3B是本發明的另一接續方法流程示意圖。3B is a schematic flow chart of another continuation method of the present invention.
圖4是本發明的使用裝配示意圖。Figure 4 is a schematic view of the use of the present invention.
圖5是本發明的取像運算示意圖。Figure 5 is a schematic diagram of the image taking operation of the present invention.
圖6是本發明的駕駛使用示意圖。Figure 6 is a schematic view of the driving use of the present invention.
圖7是本發明的另一駕駛使用示意圖。Figure 7 is a schematic view of another driving use of the present invention.
10...取像單元10. . . Image capture unit
20...處理單元20. . . Processing unit
30...安全判斷單元30. . . Safety judgment unit
40...語音提問單元40. . . Voice questioning unit
50...聲音產生單元50. . . Sound generating unit
60...通訊單元60. . . Communication unit
70...警示單元70. . . Warning unit
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