WO2017096821A1 - 安全驾驶检测方法及装置 - Google Patents

安全驾驶检测方法及装置 Download PDF

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Publication number
WO2017096821A1
WO2017096821A1 PCT/CN2016/088696 CN2016088696W WO2017096821A1 WO 2017096821 A1 WO2017096821 A1 WO 2017096821A1 CN 2016088696 W CN2016088696 W CN 2016088696W WO 2017096821 A1 WO2017096821 A1 WO 2017096821A1
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WIPO (PCT)
Prior art keywords
vehicle
distance
external object
speed
mobile terminal
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PCT/CN2016/088696
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English (en)
French (fr)
Inventor
吴凯
李礼
Original Assignee
乐视控股（北京）有限公司
乐视移动智能信息技术（北京）有限公司
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Application filed by 乐视控股（北京）有限公司, 乐视移动智能信息技术（北京）有限公司 filed Critical 乐视控股（北京）有限公司
Priority to US15/244,654 priority Critical patent/US20170158200A1/en
Publication of WO2017096821A1 publication Critical patent/WO2017096821A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
    • B60R2300/105—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using multiple cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
    • B60R2300/301—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing combining image information with other obstacle sensor information, e.g. using RADAR/LIDAR/SONAR sensors for estimating risk of collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8086—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for vehicle path indication

Definitions

  • Embodiments of the present disclosure relate to the field of automotive intelligent driving technologies, and for example, to a safe driving detection method and apparatus.
  • Installing a driving computer in the car and installing an infrared laser ranging device in the vehicle can reduce the frequency of traffic accidents in overtaking and fatigue driving.
  • the driving computer is costly and not universal.
  • the embodiments of the present disclosure provide a safe driving detection method and device, which can be applied to safe driving detection of most automobiles, and has universal applicability.
  • an embodiment of the present disclosure provides a safe driving detection method, including:
  • the camera is previewed from the inside of the vehicle;
  • the infrared laser focusing function of the first imaging device is used for distance recognition
  • the driving information of the vehicle is prompted.
  • an embodiment of the present disclosure further provides a safe driving detection apparatus, including at least one processor and a storage device, where the storage device stores a program executable by the processor, where the program includes a camera module and a distance recognition module. And a prompt module, where:
  • the camera module is configured to adopt a first camera device configured on the mobile terminal, and perform a camera preview on the outside of the vehicle from inside the vehicle;
  • the distance recognition module is configured to perform distance recognition on the object in the preview image by using an infrared laser focusing function of the first imaging device;
  • the prompt module is set to prompt the driving information of the vehicle according to the recognition result.
  • an embodiment of the present disclosure further provides a non-transitory computer readable storage medium storing computer executable instructions for performing the above method.
  • an embodiment of the present disclosure further provides a terminal, where the terminal includes one or more processors, a memory, and one or more programs, where the one or more programs are stored in the memory when being one or more The above method is executed when the processor executes.
  • the embodiment of the present disclosure adopts the first imaging device configured on the mobile terminal to perform camera preview from the inside of the vehicle; and for the object in the preview image, the infrared laser pair of the first camera device is adopted.
  • the focus function performs distance recognition; the driving information is prompted for the vehicle according to the recognition result. In this way, the detection of safe driving is performed by the mobile terminal in the user's hand, and there is no need to install a costly professional driving detection device in the vehicle. Therefore, the embodiment of the present disclosure can be applied to safe driving detection of most automobiles, and has universal applicability.
  • FIG. 1A is a schematic flow chart of a safe driving detection method according to Embodiment 1 of the present disclosure
  • FIG. 1B is a schematic diagram of a mobile terminal placement position in a safe driving detection method according to Embodiment 1 of the present disclosure
  • 1C is a schematic view showing a visible area of a rear view mirror and a mirror of the vehicle in the safe driving detection method according to the first embodiment of the present disclosure
  • FIG. 1D is a schematic diagram showing a partial display of a camera preview area in a safe driving detection method according to Embodiment 1 of the present disclosure
  • FIG. 1 is a schematic diagram of an application scenario in a method for detecting a safe driving according to Embodiment 1 of the present disclosure
  • FIG. 1F is a schematic diagram of a method for calculating a motion distance in a safe driving detection method according to Embodiment 1 of the present disclosure
  • FIG. 1G is a schematic diagram of an overtaking prompt circuit in a safe driving detection method according to Embodiment 1 of the present disclosure
  • FIG. 2 is a schematic structural diagram of a safe driving detection device according to Embodiment 2 of the present disclosure
  • FIG. 3 is a schematic structural diagram of hardware of a mobile terminal according to Embodiment 4 of the present disclosure.
  • the executive body of the present embodiment may be a safe driving detection device provided by the embodiment of the disclosure or a mobile terminal integrated with the safe driving detection device (for example, , for smart phones, tablets, etc.), in order to save costs, the safe driving detection device can be implemented by means of software, that is, the safe driving detection device is made into an application client that can be installed on the mobile terminal, making it more universal Sex.
  • the safe driving detection method includes:
  • step 11 using the first imaging device configured on the mobile terminal, the camera exterior is previewed from the inside of the vehicle;
  • the mobile terminal has at least one first imaging device, that is, a camera, and the first imaging device has an infrared laser focusing function, so as to facilitate camera preview on the outside of the vehicle.
  • the camera preview screen can be directly displayed through the display screen of the mobile terminal.
  • the user can install the safe driving detection device provided by the embodiment of the present disclosure in the mobile terminal, and when the safe driving detection is required, start the safe driving detection device in the mobile terminal, and the safe driving detection device is After startup, the camera device in the mobile terminal can be directly called for camera monitoring.
  • step 12 for the object in the preview image, the infrared laser focusing function of the first imaging device is used for distance recognition;
  • the object in the preview image may be at least one of the following: running in front of the vehicle, Other vehicles, signs or railings, etc., rear, left, right, left front, right front, left rear or right rear.
  • the infrared laser focusing function of the imaging device in the mobile terminal can directly directly acquire the relative distance of the object in the preview image from the vehicle.
  • the propagation of infrared rays takes time, when the infrared rays are reflected from the image pickup device and reflected, the image pickup device is received by the image pickup device, and then according to the time from the emission of the infrared rays to the received time and the propagation of the infrared rays.
  • the speed can be used to calculate the distance from the reflector to the camera, which is used as the distance from the object in the preview image to the vehicle.
  • step 13 the driving information is presented to the vehicle based on the recognition result.
  • the driving information prompt includes at least one of a voice prompt, a text prompt, and a screen prompt.
  • the driving information prompt may be performed according to the distance from the object to the vehicle in the preview image acquired in step 12 above. For example, prompt the user if they can overtake and so on.
  • the camera exterior is previewed from the inside of the vehicle; for the object in the preview image, the infrared laser focusing function of the first imaging device is used for distance recognition; according to the recognition result Give driving information to the car.
  • the present embodiment can be applied to safe driving detection of most automobiles, and has universal applicability.
  • performing camera preview on the exterior of the vehicle from the interior of the vehicle includes:
  • the first camera device configured on the mobile terminal, from the inside of the car to the front windshield, the rear view mirror and the opposite At least one of the light microscopes performs imaging to preview the outside of the vehicle.
  • the method includes:
  • the display screen of the mobile terminal is divided into at least two camera preview areas for display, so as to separately monitor external objects of the vehicle in multiple directions of the vehicle, with respect to the external objects of the vehicle in the plurality of directions of the vehicle. .
  • the plurality of directions include a front side, a left front side, a right front side, a right rear side, a right rear side, and a right rear side of the vehicle.
  • the user can place the mobile terminal in a suitable position in the vehicle, so that the camera position of the placed mobile terminal can be taken into the front windshield, the rear view mirror, and the left and right mirrors.
  • the rearview mirror is located in front of the driver's seat and the front passenger seat of the vehicle, and images the object behind the vehicle; the left and right mirrors are respectively located at the left and right positions of the front of the vehicle, respectively for the left of the vehicle.
  • the objects at the rear and right rear are imaged.
  • the image preview area of the front windshield, the image preview area of the rear view mirror, the image preview area of the left mirror, and the image preview area of the right mirror are respectively displayed on the display screen of the mobile terminal.
  • the camera preview area of the front windshield is used to monitor objects located directly in front of the exterior of the vehicle, in the front left, and in the front right; the camera preview area of the rearview mirror is used to monitor objects located behind the vehicle; the camera of the left mirror The preview area is used to monitor objects located at the left rear of the vehicle; the camera preview area of the right mirror is used to monitor objects located at the right rear of the vehicle.
  • performing the distance recognition by using the infrared laser focusing function of the first imaging device on the object in the preview image may include two implementation manners.
  • the first implementation manner is:
  • the infrared laser focusing function of the first imaging device periodically obtaining the preview image Taking a moving distance of an object external to the vehicle in at least one direction of the vehicle;
  • the periodicity may be set to be an interval preset time.
  • the moving distance of the external object of the vehicle with respect to at least one direction of the vehicle is acquired from the preview image every one second or five seconds.
  • the direction of the moving distance obtained in this embodiment needs to be along the traveling direction of the vehicle, such as the moving distance S1 shown in FIG. 1E, if the moving distance S obtained by the infrared laser focusing function of the first imaging device is The direction of travel of the vehicle is not uniform.
  • the moving distance S needs to be decomposed into the traveling direction of the vehicle, and the moving distance S1 along the traveling direction of the vehicle is calculated.
  • the vehicle when the vehicle is about to pass from the left side of the runway to the right side of the runway, it is necessary to detect objects located in three directions, such as the front, the rear, and the right side of the vehicle.
  • the preset distance for example, 100 meters
  • multiple measurements may be made on the moving distance S1 of the object in each direction relative to the vehicle, and then the difference between the plurality of moving distances S1 is compared, when the maximum difference is less than the preset overtaking When the difference is made, it is determined that the vehicle can overtake, otherwise it is determined that the vehicle cannot overtake.
  • the second implementation manner of using the infrared laser focusing function of the first imaging device to perform distance recognition on the object in the preview image is:
  • Determining a moving speed of an object external to the vehicle according to the moving distance, and according to the external object of the vehicle The speed of the body determines whether the vehicle can overtake as a result of the recognition.
  • the infrared laser focusing function of the first imaging device is used to detect a first distance S1 of the external object of the vehicle relative to the vehicle at a first time T1; and the infrared of the first imaging device is adopted.
  • the laser focusing function continues to detect the second time T2 corresponding to the movement of the external object of the vehicle to the second distance S2 relative to the vehicle; and then calculating the external object of the vehicle in at least one direction relative to the vehicle
  • the moving distance in the (T2-T1) period is (S2-S1). Therefore, the moving speed of the external object of the vehicle is determined according to the moving distance, and whether the vehicle can overtake is determined according to the moving speed of the external object of the vehicle.
  • the determination process is as follows:
  • the book is calculated according to the first time T1, the first distance S1, the second distance S2, and the second time T2
  • the relative speed of the external object of the vehicle V2 ie If the speed V2 is a negative value and the absolute value is less than or equal to the second preset speed threshold, it is determined that the vehicle is capable of overtaking; if the speed V2 is a positive value or the speed V2 is a negative value and the absolute value is greater than
  • the second preset speed threshold determines that the vehicle cannot be overtaken.
  • the vehicle speed of the vehicle can be obtained through the instrument panel identification, or the vehicle speed can be obtained by interacting with the control device of the vehicle, or the position recognition can be performed by the mobile terminal, thereby calculating the moving speed of the mobile terminal itself, as the vehicle.
  • Speed of the car Combined with the speed of the car, you can determine whether you can overtake.
  • the method further includes:
  • the overtaking route is displayed on the display screen of the mobile terminal, and the user is prompted to complete the overtaking in the second preset time period.
  • an overtaking display interface as shown in FIG. 1G can be provided on the mobile terminal.
  • the general mobile terminal is configured with two cameras, one front camera and one rear camera, in order to fully utilize the existing camera performance of the mobile terminal, and in order to improve driving safety,
  • the method further includes:
  • the second camera device configured on the mobile terminal detects the number of blinks of the user in the third preset time period in real time
  • the user's blink time interval is detected in real time by using a second camera device configured on the mobile terminal;
  • the user When the time interval exceeds the preset time interval, the user is prompted to decelerate, or a deceleration signal is generated and sent to the processor of the vehicle, so that the processor controls the deceleration of the vehicle according to the deceleration signal.
  • normal people should blink more than ten times per minute, usually blinking once every 2 to 6 seconds. It takes 0.2 to 0.4 seconds for each blink. Normal adults blink about 20 times per minute, and when the eyes gaze at the computer screen where the image changes rapidly, or when the person's attention is relatively concentrated, the number of blinks may be reduced to 4-5 times per minute. After the person is fatigued, the frequency of blinking tends to increase, and the time of blinking each time becomes correspondingly longer. Therefore, the reference standard of the embodiment can be set to be about 20 times per minute for the driver in the non-fatigued state, and the blinking time is The interval is 0.2 to 0.4 seconds.
  • the rear camera may be used as the first imaging device to detect whether to overtake, and the front camera is set as the second imaging device to detect whether the user is driving fatigue.
  • the front camera can also be used as the first camera device for detecting whether the vehicle is overtaken, and the rear camera is used as the second camera device for detecting whether the user is Fatigue driving.
  • the human eye detection screen can also be displayed in the display area on the display screen of the mobile terminal, as shown in FIG. 1D.
  • the first camera device configured on the mobile terminal is used to preview the exterior of the vehicle from the inside of the vehicle; for the object in the preview image, the infrared laser focusing function of the first camera device is used for distance recognition; As a result, the driving information prompt is given to the vehicle.
  • the safe driving detection can be completed by using the mobile terminal in the user's hand, and there is no need to install a high-cost professional driving detection device in the vehicle. Therefore, the above embodiments can also be applied to safe driving detection of most automobiles, and are generally popular. applicability.
  • FIG. 2 is a schematic structural diagram of a safe driving detection apparatus according to Embodiment 2 of the present disclosure, as shown in FIG. 2, including: a camera module 21, a distance recognition module 22, and a prompt module 23;
  • the camera module 21 is configured to adopt a first imaging device configured on the mobile terminal, from the interior of the vehicle Preview the camera outside the car;
  • the distance recognition module 22 is configured to perform distance recognition on an object in the preview image by using an infrared laser focusing function of the first imaging device;
  • the prompting module 23 is configured to prompt the driving information of the vehicle according to the recognition result.
  • the safe driving detection device configured to perform the safe driving detection method described in the above embodiments, and the technical principle and the generated technical effect are similar.
  • the camera module 21 may be configured to perform at least one of a front windshield, a rearview mirror, and a mirror from inside the vehicle by using a first imaging device configured on the mobile terminal. Camera to preview the outside of the car.
  • the distance recognition module 22 may be configured to adopt an infrared laser focusing function of the first imaging device to periodically acquire at least one direction relative to the vehicle from the preview image.
  • the moving distance of the external object on the vehicle determining whether the vehicle can overtake according to the relationship between the difference between the at least one moving distance periodically acquired and the preset overtaking difference, as a recognition result.
  • the distance identification module 22 includes: a distance acquisition unit 221 and an overtaking determination unit 222;
  • the distance acquiring unit 221 is configured to acquire, by using the infrared laser focusing function of the first imaging device, the motion of the external object of the vehicle in at least one direction of the vehicle in the first preset time period from the preview image. distance;
  • the overtaking determination unit 222 is configured to determine a moving speed of the external object of the vehicle according to the moving distance, and determine whether the vehicle can overtake according to the moving speed of the external object of the vehicle as a recognition result.
  • the distance acquiring unit 221 may be configured to detect, by using an infrared laser focusing function of the first imaging device, the external object of the vehicle at a first time T1 relative to the original a first distance S1 of the vehicle; using the infrared laser focusing function of the first imaging device to continue to detect a second time T2 corresponding to the movement of the external object of the vehicle to the second distance S2 relative to the vehicle;
  • the moving distance of the external object of the vehicle in at least one direction of the vehicle in the (T2-T1) time period is (S2-S1).
  • the overtaking determination unit 222 may be configured to: when the external object of the vehicle is in front of the host vehicle, according to the first time T1, the first distance S1, the second distance S2 and the second time T2 calculate a relative speed V2 of the external object of the vehicle; if the speed V2 is a positive value and greater than or equal to a first preset speed threshold, determining the The vehicle can overtake; if the speed V2 is a positive value or the speed V2 is a negative value and the absolute value is less than the first preset speed threshold, it is determined that the vehicle cannot be overtaken.
  • the overtaking determination unit 222 may be configured to: when the external object of the vehicle is behind the vehicle, according to the first time T1, the first distance S1, the second distance S2 and the second time T2 calculate a relative speed V2 of the external object of the vehicle,
  • the second preset speed threshold determines that the vehicle cannot be overtaken.
  • the device further includes: a display module 24;
  • the display module 24 is configured to display an overtaking route on the display screen of the mobile terminal, and prompt the user to complete the overtaking in the second preset time period.
  • the camera module 21 is further configured to be opposite to the The external object of the vehicle in multiple directions of the vehicle divides the display screen of the mobile terminal into at least two camera preview areas for monitoring separately.
  • the device further includes: a human eye detection module 25;
  • the human eye detection module 25 is configured to detect, in real time, the number of blinks of the user in the third preset time period by using the second image capturing device configured on the mobile terminal; when the number of blinks exceeds the preset number of times, the user is prompted to decelerate Or generating a deceleration signal to be sent to the processor of the vehicle, so that the processor controls the deceleration of the vehicle according to the deceleration signal; or, using a second imaging device configured on the mobile terminal, detecting a blink time interval of the user in real time; When the time interval exceeds the preset time interval, the user is prompted to decelerate, or a deceleration signal is generated and sent to the processor of the vehicle, so that the processor controls the deceleration of the vehicle according to the deceleration signal.
  • the safe driving detection device described in each of the above embodiments is used to execute the safe driving detection method described in the above embodiments, and the technical principle and the generated technical effects are similar.
  • the present disclosure also provides a non-volatile computer storage medium storing one or more modules, when the one or more modules are executed by a mobile terminal of a safe driving detection method,
  • the mobile terminal performs any of the above embodiments.
  • the smart terminal includes:
  • the smart terminal may further include: an input device 33 and an output device 34.
  • the processor 31, the memory 32, the input device 33, and the output device 34 in the smart terminal may be connected by a bus or other means, and the connection through the bus is taken as an example in FIG.
  • the memory 32 is a non-volatile computer readable storage medium, and can be used to store a software program, a computer executable program, and a module, such as a program instruction/module corresponding to the safe driving detection method in the embodiment of the present disclosure (for example, attached)
  • the processor 31 executes various functional applications and data processing of the server by executing software programs, instructions, and modules stored in the memory 32, that is, implementing the safe driving detection method of the above method embodiment.
  • the memory 32 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like.
  • memory 32 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • memory 32 may optionally include memory remotely located relative to processor 31, which may be connected to the terminal device over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Input device 33 can be used to receive input digital or character information and to generate key signal inputs related to user settings and function control of the terminal.
  • Output device 34 can include a display device such as a display screen.
  • the one or more modules are stored in the memory 32, and when executed by the one or more processors 31, perform any one of the above embodiments.
  • the safe driving detection method and apparatus realizes imaging of an external object of the vehicle from inside the vehicle through the first imaging device of the mobile terminal. And the infrared laser focusing function of the first imaging device is used to identify the distance of the object in the captured image, and the driving information is presented to the vehicle according to the recognition result, thereby completing the safe driving detection by the mobile terminal.

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Abstract

一种安全驾车检测方法及装置，其中所述方法包括：采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；以及根据识别结果对本车进行驾驶信息提示。本方法及装置适用于大多数汽车的安全驾驶检测，具有普遍适用性。

Description

安全驾驶检测方法及装置
本申请要求在2015年12月08日提交中国专利局、申请号为2015108978394、发明名称为“安全驾驶检测方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开实施例涉及汽车智能驾驶技术领域，例如涉及一种安全驾车检测方法及装置。
背景技术
随着我国汽车的不断增多，汽车已进入了千家万户，汽车在给人们出行提供方便的同时，也会不断增加汽车交通事故发生的频率。超车和疲劳驾驶是行驶过程中较为常见的行为，例如超车，在短短的超车时间内，由于驾驶员很难观察到所有周围车辆的状况以及预测前方车辆的运行轨迹，因此很容易在超车过程中发生交通事故。
在车中安装行车电脑，配合整车安装红外激光测距装置可以降低超车和疲劳驾驶中发生交通事故的频率。但是在部分未配备行车电脑和未安装红外激光测距装置的车中，无法实现超车和疲劳驾驶的提醒。且该行车电脑成本高昂，不具有普适性。
发明内容
本公开实施例提供一种安全驾车检测方法及装置，能够适用于大多数汽车的安全驾驶检测，具有普遍适用性。
第一方面，本公开实施例提供了一种安全驾车检测方法，包括：
采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；
对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；以及
根据识别结果对本车进行驾驶信息提示。
第二方面，本公开实施例还提供一种安全驾车检测装置，包括至少一个处理器和存储设备，所述存储设备存储所述处理器可执行的程序，所述程序包括摄像模块、距离识别模块和提示模块，其中：
摄像模块，设置为采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；
距离识别模块，设置为对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；
提示模块，设置为根据识别结果对本车进行驾驶信息提示。
第三方面，本公开实施例还提供一种非易失性计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述方法。
第四方面，本公开实施例还提供一种终端，该终端包括一个或多个处理器、存储器以及一个或多个程序，所述一个或多个程序存储在存储器中，当被一个或多个处理器执行时，执行上述方法。
本公开实施例通过采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；对预览图像中的物体，采用第一摄像设备的红外激光对 焦功能进行距离识别；根据识别结果对本车进行驾驶信息提示。这样利用用户手中的移动终端完成安全驾驶的检测，无需在本车内安装成本高昂的专业驾驶检测设备，因此，本公开实施例能够适用于大多数汽车的安全驾驶检测，具有普遍适用性。
附图说明
图1A为本公开实施例一提供的安全驾车检测方法的流程示意图；
图1B为本公开实施例一提供的安全驾车检测方法中的移动终端放置位置示意图；
图1C为本公开实施例一提供的安全驾车检测方法中的本车后视镜、反光镜可视区域示意图；
图1D为本公开实施例一提供的安全驾车检测方法中的摄像预览区域分区显示示意图；
图1E为本公开实施例一提供的安全驾车检测方法中的一种应用场景示意图；
图1F为本公开实施例一提供的安全驾车检测方法中的运动距离计算方法示意图；
图1G为本公开实施例一提供的安全驾车检测方法中的超车提示线路示意图；
图2为本公开实施例二提供的安全驾车检测装置的结构示意图；
图3为本公开实施例四提供的移动终端的硬件结构示意图。
实施方式
下面结合附图和实施例对本公开作说明。可以理解的是，此处所描述的实施例仅仅用于解释本公开，而非对本公开的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本公开相关的部分而非全部结构。
实施例一
图1A为本公开实施例一提供的安全驾车检测方法的流程示意图，本实施例的执行主体，可为本公开实施例提供的安全驾车检测装置或集成了该安全驾车检测装置的移动终端(例如，智能手机、平板电脑等)，为节约成本，该安全驾车检测装置可采用软件的方式实现，即将该安全驾车检测装置做成能安装在移动终端上的应用客户端，使其更具普适性。如图1A所示，该安全驾车检测方法包括：
在步骤11中、采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；
其中，所述移动终端至少具备一个第一摄像设备即摄像头，且该第一摄像设备具备红外激光对焦功能，以便于对本车外部进行摄像预览。该摄像预览画面可直接通过移动终端自带的显示屏幕进行显示。
可选的，用户可事先将本公开实施例提供的安全驾车检测装置安装在移动终端中，在需要进行安全驾驶检测时，则启动该移动终端中的安全驾车检测装置，该安全驾车检测装置被启动后可直接调用移动终端中的摄像设备进行摄像监控。
在步骤12中、对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；
其中，预览图像中的物体可为以下情况中的至少一种：运行在本车前方、 后方、左方、右方、左前方、右前方、左后方或右后方的其它交通工具、提示牌或者栏杆等等。
具体的，由于红外线在穿越其它物质时折射率很小，成像相对比较清晰，因此大多数移动终端的摄像设备都采用红外线进行长距离的摄像。因此，本实施例可直接利用移动终端中的摄像设备的红外激光对焦功能直接获取到预览图像中的物体距离本车的相对距离。具体的，由于红外线的传播是需要时间的，当红外线从摄像设备发出碰到反射物被反射回来时，被所述摄像设备接收到，再根据红外线从发出到被接收到的时间及红外线的传播速度就可以算出反射物到摄像设备的距离，从而将该距离作为预览图像中物体到本车的距离。
在步骤13中、根据识别结果对本车进行驾驶信息提示。
其中，所述驾驶信息提示包括语音提示、文字提示和画面提示中的至少一种。
可选的，可根据上述步骤12获取的预览图像中物体到本车的距离进行驾驶信息提示。例如，提示用户是否可超车行驶等等。
本实施例通过采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；根据识别结果对本车进行驾驶信息提示。这种利用移动终端完成安全驾驶的检测的方法，无需在本车内安装成本高昂的专业驾驶检测设备，因此，本实施例能够适用于大多数汽车的安全驾驶检测，具有普遍适用性。
示例性的，在上述实施例的基础上，采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览包括：
采用移动终端上配置的第一摄像设备，从本车内部对前风挡、后视镜和反 光镜中的至少一个进行摄像，以对本车外部进行摄像预览。
示例性的，在上述实施例的基础上，为方便用户更为直观的观看到本车外每个方向上的物体的运行情况，所述方法包括：
相对于所述本车多个方向上的本车外部物体，将所述移动终端的显示屏幕划分至少两个摄像预览区域进行显示，以实现对本车多个方向上的本车外部物体进行分别监控。
其中，所述多个方向包括本车的正前方、左前方、右前方、正后方、右后方和右后方等。
可选的，如图1B和1C所示，用户可将移动终端放置本车内适宜位置，使放置后的移动终端的摄像设别能够兼顾摄像到前风挡、后视镜和左右反光镜中的画面。其中，后视镜位于本车内驾驶员座椅和副驾驶员座椅的前上方，对车后方的物体进行成像；左右反光镜分别位于本车外部前方左右位置处，分别用于对本车左后方和右后方的物体进行成像。
如图1D，将所述前风挡的摄像预览区域、后视镜的摄像预览区域、左反光镜的摄像预览区域、及右反光镜的摄像预览区域分别显示在移动终端的显示屏幕上。其中，前风挡的摄像预览区域用于监控位于本车外部正前方、左前方、和右前方的物体；后视镜的摄像预览区域用于监控位于本车外部后面的物体；左反光镜的摄像预览区域用于监控位于本车外部左后方的物体；右反光镜的摄像预览区域用于监控位于本车外部右后方的物体。
示例性的，在上述实施例的基础上，对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别可包括两种实现方式，第一种实现方式是：
采用所述第一摄像设备的红外激光对焦功能，周期性从所述预览图像中获 取相对于本车至少一个方向上的本车外部物体的运动距离；
根据周期性获取的至少一个运动距离间的差值与预设超车差值之间的关系，确定本车是否能够超车，作为识别结果。
其中，所述周期性可设为间隔预设时间。例如，每隔1秒或者5秒从所述预览图像中获取一次相对于本车至少一个方向上的本车外部物体的运动距离。本实施例获取的所述运动距离的方向需沿着所述本车行驶方向，例如图1E所示的运动距离S1，如果通过所述第一摄像设备的红外激光对焦功能获取的运动距离S的方向本车的行驶方向不一致，如图1F所示，则需要将该运动距离S分解到沿着所述本车行驶方向上，通过计算得到沿着所述本车行驶方向上的运动距离S1。
可选的，以如图1E所示的应用场景为例，当本车即将从跑道左方超到跑道右方时，则需要检测位于本车前方、后方及右方等三个方向上的物体，当获取的位于本车外部三个方向上的物体相对于本车的运动距离S1大于预设距离(例如100米)时，则确定本车能够超车，则语音提示用户可以超车，否则语音提示用户不可以超车。
或者，为了增加安全系数，可对每个方向上的物体相对于本车的运动距离S1进行多次测量，然后比较多个运动距离S1之间的差值，当最大的差值小于预设超车差值时，确定本车能够超车，否则确定本车不能够超车。
示例性的，在上述实施例的基础上，对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别的第二种实现方式是：
采用所述第一摄像设备的红外激光对焦功能从所述预览图像中获取相对于本车至少一个方向上的本车外部物体在第一预设时间段内的运动距离；
根据所述运动距离确定本车外部物体的运动速度，并根据所述本车外部物 体的运动速度确定本车是否能够超车，作为识别结果。
可选的，首先采用所述第一摄像设备的红外激光对焦功能检测所述本车外部物体在第一时间T1相对于所述本车的第一距离S1；采用所述第一摄像设备的红外激光对焦功能继续检测所述本车外部物体移动至相对于所述本车的第二距离S2时对应的第二时间T2；然后计算得到相对于所述本车至少一个方向上的本车外部物体在(T2-T1)时间段内的运动距离为(S2-S1)。从而根据所述运动距离确定本车外部物体的运动速度，并根据所述本车外部物体的运动速度确定本车是否能够超车。确定过程如下：
当所述本车外部物体在所述本车的前方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对速度V2，即
Figure PCTCN2016088696-appb-000001
若所述速度V2为正值且大于或等于第一预设速度阈值，则确定所述本车能够超车；若所述速度V2为正值且小于第一预设速度阈值，或所述速度V2为负值且绝对值小于所述第一预设速度阈值，则确定所述本车不能够超车。
或者，当所述本车外部物体在所述本车的后方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对速度V2，即
Figure PCTCN2016088696-appb-000002
若所述速度V2为负值且绝对值小于或等于第二预设速度阈值，则确定所述本车能够超车；若所述速度V2为正值或所述速度V2为负值且绝对值大于所述第二预设速度阈值，则确定所述本车不能够超车。
另外，需要说明的是，为增加安全系数，在根据速度V2确定是否超车的同时，可根据获取的运动距离(S2-S1)确定本车是否能够超车。即在满足上述速度超车条件的同时，当运动距离(S2-S1)差值的绝对值小于预设超车差值 时，则确定本车能够超车，当运动距离(S2-S1)差值的绝对值大于或等于预设超车差值时，则确定本车不能够超车。
上述方式可以通过仪表盘识别获取本车的车速，或者通过与本车的控制装置相交互来获取本车车速，也可以由移动终端进行位置识别，进而计算移动终端自身的移动速度，作为本车的车速。结合本车的车速可确定是否能够超车。
示例性的，在上述实施例的基础上，为了用户安全的完成超车，所述方法还包括：
在所述移动终端的显示屏幕上显示超车路线，并提示用户在第二预设时间段内完成超车。
例如，可在移动终端上提供如图1G所示的超车显示界面。
示例性的，在上述实施例的基础上，一般移动终端都配置有两个摄像头，一个前置摄像头，一个后置摄像头，为充分利用移动终端的现有摄像性能，以及为了提高驾驶安全性，所述方法还包括：
采用移动终端上配置的第二摄像设备实时检测用户在第三预设时间段内的眨眼次数；
当所述眨眼次数超过预设次数时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速；
或者，
采用移动终端上配置的第二摄像设备实时检测用户眨眼时间间隔；
当所述时间间隔超过预设时间间隔时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速。
根据统计，正常人平均每分钟要眨眼十几次，通常2～6秒就要眨眼一次， 每次眨眼要用0.2～0.4秒钟时间。正常的成年人每分钟眨眼约20次，而在眼睛凝视图像快速变动的电脑屏幕时，或者人的注意力相对集中时，眨眼次数可能会减少到每分钟4-5次。而人出现疲劳后，眨眼频率往往会加快，每次眨眼经历时间也会相应的变长，因此，本实施例的参照标准可设为非疲劳状态下驾驶员每分钟眨眼约20次，眨眼时间间隔0.2～0.4秒。
可选的，在实际放置移动终端时，可将后置摄像头作为第一摄像设备，设置为检测是否超车，将前置摄像头作为第二摄像设备设置为检测用户是否为疲劳驾驶。此外，本领域技术人员应该理解，根据移动终端的实际放置方式，也可以将前置摄像头作为第一摄像设备，用于检测是否超车，将后置摄像头作为第二摄像设备用于检测用户是否为疲劳驾驶。
其中，人眼检测画面也可在移动终端的显示屏幕上的显示区域中进行显示，如图1D所示。
上述各实施例通过采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；根据识别结果对本车进行驾驶信息提示。这样利用用户手中的移动终端就可完成安全驾驶的检测，就无需在本车内安装成本高昂的专业驾驶检测设备，因此，上述各实施例同样能够适用于大多数汽车的安全驾驶检测，具有普遍适用性。
实施例二
图2为本公开实施例二提供的安全驾车检测装置的结构示意图，如图2所示，包括：摄像模块21、距离识别模块22和提示模块23；
所述摄像模块21设置为采用移动终端上配置的第一摄像设备，从本车内部 对本车外部进行摄像预览；
所述距离识别模块22设置为对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；
所述提示模块23设置为根据识别结果对本车进行驾驶信息提示。
本公开实施例所述的安全驾车检测装置设置为执行上述各实施例所述的安全驾车检测方法，其技术原理和产生的技术效果类似。
示例性的，在上述实施例的基础上，所述摄像模块21可设置为采用移动终端上配置的第一摄像设备，从本车内部对前风挡、后视镜和反光镜中的至少一个进行摄像，以对本车外部进行摄像预览。
示例性的，在上述实施例的基础上，所述距离识别模块22可设置为采用所述第一摄像设备的红外激光对焦功能，周期性从所述预览图像中获取相对于本车至少一个方向上的本车外部物体的运动距离；根据周期性获取的至少一个运动距离间的差值与预设超车差值之间的关系，确定本车是否能够超车，作为识别结果。
示例性的，在上述实施例的基础上，所述距离识别模块22包括：距离获取单元221和超车判定单元222；
所述距离获取单元221设置为采用所述第一摄像设备的红外激光对焦功能从所述预览图像中获取相对于本车至少一个方向上的本车外部物体在第一预设时间段内的运动距离；
所述超车判定单元222设置为根据所述运动距离确定本车外部物体的运动速度，并根据所述本车外部物体的运动速度确定本车是否能够超车，作为识别结果。
示例性的，在上述实施例的基础上，所述距离获取单元221可设置为采用所述第一摄像设备的红外激光对焦功能检测所述本车外部物体在第一时间T1相对于所述本车的第一距离S1；采用所述第一摄像设备的红外激光对焦功能继续检测所述本车外部物体移动至相对于所述本车的第二距离S2时对应的第二时间T2；相对于所述本车至少一个方向上的本车外部物体在(T2-T1)时间段内的运动距离为(S2-S1)。
示例性的，在上述实施例的基础上，所述超车判定单元222可设置为当所述本车外部物体在所述本车的前方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对速度V2；若所述速度V2为正值且大于或等于第一预设速度阈值，则确定所述本车能够超车；若所述速度V2为正值或所述速度V2为负值且绝对值小于所述第一预设速度阈值，则确定所述本车不能够超车。
示例性的，在上述实施例的基础上，所述超车判定单元222可设置为当所述本车外部物体在所述本车的后方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对速度V2，
Figure PCTCN2016088696-appb-000003
若所述速度V2为负值且绝对值小于或等于第二预设速度阈值，则确定所述本车能够超车；若所述速度V2为正值或所述速度V2为负值且绝对值大于所述第二预设速度阈值，则确定所述本车不能够超车。
示例性的，在上述实施例的基础上，所述装置还包括：显示模块24；
所述显示模块24设置为在所述移动终端的显示屏幕上显示超车路线，并提示用户在第二预设时间段内完成超车。
示例性的，在上述实施例的基础上，所述摄像模块21还设置为相对于所述 本车多个方向上的本车外部物体，将所述移动终端的显示屏幕划分至少两个摄像预览区域进行分别监控。
示例性的，在上述实施例的基础上，所述装置还包括：人眼检测模块25；
所述人眼检测模块25设置为采用移动终端上配置的第二摄像设备实时检测用户在第三预设时间段内的眨眼次数；当所述眨眼次数超过预设次数时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速；或者，采用移动终端上配置的第二摄像设备实时检测用户眨眼时间间隔；当所述时间间隔超过预设时间间隔时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速。
上述各实施例所述的安全驾车检测装置用于执行上述各实施例所述的安全驾车检测方法，其技术原理和产生的技术效果类似。
实施例三
本公开还提供了一种非易失性计算机存储介质，所述计算机存储介质存储有一个或者多个模块，当所述一个或者多个模块被一个安全驾车检测方法的移动终端执行时，使得所述移动终端执行上述实施例中的任意一种方法。
实施例四
图3为本公开实施例四提供的一种移动终端的硬件结构示意图，如图3所示，该智能终端包括：
一个或多个处理器31，存储器32；图3中以一个处理器31为例；
所述智能终端还可以包括：输入装置33和输出装置34。
所述智能终端中的处理器31、存储器32、输入装置33和输出装置34可以通过总线或者其他方式连接，图3中以通过总线连接为例。
存储器32作为一种非易失性的计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本公开实施例中的安全驾驶检测方法对应的程序指令/模块(例如，附图2所示的摄像模块21、距离识别模块22和提示模块23)。处理器31通过运行存储在存储器32中的软件程序、指令以及模块，从而执行服务器的各种功能应用以及数据处理，即实现上述方法实施例的安全驾驶检测方法。
存储器32可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器32可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实施例中，存储器32可选包括相对于处理器31远程设置的存储器，这些远程存储器可以通过网络连接至终端设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置33可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。输出装置34可包括显示屏等显示设备。
所述一个或者多个模块存储在所述存储器32中，当被所述一个或者多个处理器31执行时，执行上述实施例中的任意一种方法。
注意，上述仅为本公开的较佳实施例及所运用技术原理。本领域技术人员会理解，本公开不限于这里所述的实施例，还可以包括更多其他等效实施例，而本公开的范围由所附的权利要求范围决定。
工业实用性
本公开提供的安全驾驶检测方法和装置，通过移动终端的第一摄像设备，实现从本车内部对本车外部物体进行摄像。并且利用第一摄像设备的红外激光对焦功能对摄像图像中的物体进行距离识别，根据识别结果对本车进行驾驶信息提示，从而通过移动终端完成安全驾驶的检测。

Claims (20)

  1. 一种驾车检测方法，包括：
    采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；
    对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；以及
    根据识别结果对本车进行驾驶信息提示。
  2. 根据权利要求1所述的方法，其中，采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览，包括：
    采用移动终端上配置的第一摄像设备，从本车内部对前风挡、后视镜和反光镜中的至少一个进行摄像，以对本车外部进行摄像预览。
  3. 根据权利要求1所述的方法，其中，对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别，包括：
    采用所述第一摄像设备的红外激光对焦功能，周期性从所述预览图像中获取相对于本车至少一个方向上的本车外部物体的运动距离；以及
    根据周期性获取的同一方向上多个运动距离间的差值与预设超车差值之间的关系，确定本车是否能够超车，作为识别结果。
  4. 根据权利要求1所述的方法，其中，对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别，包括：
    采用所述第一摄像设备的红外激光对焦功能从所述预览图像中获取相对于本车至少一个方向上的本车外部物体在第一预设时间段内的运动距离；以及
    根据所述运动距离确定本车外部物体的运动速度，并根据所述本车外部物体的运动速度确定本车是否能够超车，作为识别结果。
  5. 根据权利要求4所述的方法，其中，采用所述第一摄像设备的红外激光 对焦功能从所述预览图像中获取相对于本车至少一个方向上的本车外部物体在第一预设时间段内的运动距离，包括：
    采用所述第一摄像设备的红外激光对焦功能，检测所述本车外部物体在第一时间T1相对于所述本车的第一距离S1；
    采用所述第一摄像设备的红外激光对焦功能，继续检测所述本车外部物体移动至相对于所述本车的第二距离S2时对应的第二时间T2；以及
    相对于所述本车至少一个方向上的本车外部物体在(T2-T1)时间段内的运动距离为(S2-S1)。
  6. 根据权利要求5所述的方法，其中，根据所述运动距离确定外部物体的运动速度，并根据所述外部物体的运动速度确定本车是否能够超车，作为识别结果包括：
    当所述本车外部物体在所述本车的前方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对速度V2，即
    Figure PCTCN2016088696-appb-100001
    若所述速度V2为正值且大于或等于第一预设速度阈值，则确定所述本车能够超车；以及
    若所述速度V2为正值或所述速度V2为负值且绝对值小于所述第一预设速度阈值，则确定所述本车不能够超车。
  7. 根据权利要求5所述的方法，其中，根据所述运动距离确定外部物体的运动速度，并根据所述外部物体的运动速度确定本车是否能够超车，作为识别结果包括：
    当所述本车外部物体在所述本车的后方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对 速度V2，即
    Figure PCTCN2016088696-appb-100002
    若所述速度V2为负值且绝对值小于或等于第二预设速度阈值，则确定所述本车能够超车；以及
    若所述速度V2为正值或所述速度V2为负值且绝对值大于所述第二预设速度阈值，则确定所述本车不能够超车。
  8. 根据权利要求5～7任一项所述的方法，还包括：
    在所述移动终端的显示屏幕上显示超车路线，并提示用户在第二预设时间段内完成超车。
  9. 根据权利要求1～7任一项所述的方法，还包括：
    相对于所述本车多个方向上的本车外部物体，将所述移动终端的显示屏幕划分至少两个摄像预览区域进行分别监控。
  10. 根据权利要求1～7任一项所述的方法，还包括：
    采用移动终端上配置的第二摄像设备实时检测用户在第三预设时间段内的眨眼次数；
    当所述眨眼次数超过预设次数时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速；
    或者，
    采用移动终端上配置的第二摄像设备实时检测用户眨眼时间间隔；
    当所述时间间隔超过预设时间间隔时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速。
  11. 一种安全驾车检测装置，包括至少一个处理器和存储设备，所述存储设备存储所述处理器可执行的程序，所述程序包括：摄像模块、距离识别模块 和提示模块，其中：
    摄像模块，设置为采用移动终端上配置的第一摄像设备，从本车内部对本车外部进行摄像预览；
    距离识别模块，设置为对预览图像中的物体，采用第一摄像设备的红外激光对焦功能进行距离识别；以及
    提示模块，设置为根据识别结果对本车进行驾驶信息提示。
  12. 根据权利要求11所述的装置，其中，所述摄像模块设置为：
    采用移动终端上配置的第一摄像设备，从本车内部对前风挡、后视镜和反光镜中的至少一个进行摄像，以对本车外部进行摄像预览。
  13. 根据权利要求11所述的装置，其中，所述距离识别模块设置为：
    采用所述第一摄像设备的红外激光对焦功能，周期性从所述预览图像中获取相对于本车至少一个方向上的本车外部物体的运动距离；根据周期性获取的至少一个运动距离间的差值与预设超车差值之间的关系，确定本车是否能够超车，作为识别结果。
  14. 根据权利要求11所述的装置，其中，所述距离识别模块包括：
    距离获取单元，设置为采用所述第一摄像设备的红外激光对焦功能从所述预览图像中获取相对于本车至少一个方向上的本车外部物体在第一预设时间段内的运动距离；
    超车判定单元，设置为根据所述运动距离确定本车外部物体的运动速度，并根据所述本车外部物体的运动速度确定本车是否能够超车，作为识别结果。
  15. 根据权利要求14所述的装置，其中，所述距离获取单元设置为：
    采用所述第一摄像设备的红外激光对焦功能检测所述本车外部物体在第一时间T1相对于所述本车的第一距离S1；
    采用所述第一摄像设备的红外激光对焦功能继续检测所述本车外部物体移动至相对于所述本车的第二距离S2时对应的第二时间T2；以及
    相对于所述本车至少一个方向上的本车外部物体在(T2-T1)时间段内的运动距离为(S2-S1)。
  16. 根据权利要求15所述的装置，其中，所述超车判定单元设置为：
    当所述本车外部物体在所述本车的前方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对速度V2；
    若所述速度V2为正值且大于或等于第一预设速度阈值，则确定所述本车能够超车；以及
    若所述速度V2为正值或所述速度V2为负值且绝对值小于所述第一预设速度阈值，则确定所述本车不能够超车。
  17. 根据权利要求15所述的装置，其中，所述超车判定单元设置为：
    当所述本车外部物体在所述本车的后方时，根据所述第一时间T1、所述第一距离S1、所述第二距离S2和所述第二时间T2计算所述本车外部物体的相对速度V2；以及
    若所述速度V2为负值且绝对值小于或等于第二预设速度阈值，则确定所述本车能够超车；若所述速度V2为正值或所述速度V2为负值且绝对值大于所述第二预设速度阈值，则确定所述本车不能够超车。
  18. 根据权利要求15～17任一项所述的装置，还包括：
    显示模块，设置为在所述移动终端的显示屏幕上显示超车路线，并提示用户在第二预设时间段内完成超车。
  19. 根据权利要求11～17任一项所述的装置，其中，所述摄像模块还设置 为：
    相对于所述本车多个方向上的本车外部物体，将所述移动终端的显示屏幕划分至少两个摄像预览区域进行分别监控。
  20. 根据权利要求11～17任一项所述的装置，还包括：
    人眼检测模块，设置为采用移动终端上配置的第二摄像设备实时检测用户在第三预设时间段内的眨眼次数；
    当所述眨眼次数超过预设次数时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速；或者，
    采用移动终端上配置的第二摄像设备实时检测用户眨眼时间间隔；
    当所述时间间隔超过预设时间间隔时，则提示用户减速行驶，或者生成减速信号发送至本车的处理器，使所述处理器根据所述减速信号控制所述本车减速。
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