WO2019127529A1 - 一种预防疲劳驾驶的方法、装置及车载终端 - Google Patents

一种预防疲劳驾驶的方法、装置及车载终端 Download PDF

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Publication number
WO2019127529A1
WO2019127529A1 PCT/CN2017/120261 CN2017120261W WO2019127529A1 WO 2019127529 A1 WO2019127529 A1 WO 2019127529A1 CN 2017120261 W CN2017120261 W CN 2017120261W WO 2019127529 A1 WO2019127529 A1 WO 2019127529A1
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WIPO (PCT)
Prior art keywords
vehicle
driver
information
predetermined
service area
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PCT/CN2017/120261
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English (en)
French (fr)
Inventor
李恒
刘光军
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深圳市锐明技术股份有限公司
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Priority to CN201780002307.7A priority Critical patent/CN110313023A/zh
Priority to PCT/CN2017/120261 priority patent/WO2019127529A1/zh
Publication of WO2019127529A1 publication Critical patent/WO2019127529A1/zh

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms

Definitions

  • the present invention relates to the field of safe driving technology, and in particular to a method, device and vehicle terminal for preventing fatigue driving.
  • the present invention provides a method, a device and an in-vehicle terminal for preventing fatigue driving, so as to improve the fatigue state judgment accuracy, and can perform corresponding anti-fatigue driving processing according to the road on which the vehicle is currently traveling.
  • a method of preventing fatigue driving including:
  • the electronic vehicle is used to guide the vehicle to travel to the nearest service area for a predetermined period of rest.
  • a device for preventing fatigue driving comprising:
  • An information collecting module configured to collect image information of the driver during running of the vehicle
  • a processing module configured to extract facial feature information of the driver from the collected image information, and determine, according to the facial feature information, whether the driver is in a physiological fatigue state;
  • a prompting module configured to alert the driver when the driver is in the physiological fatigue state
  • An information acquiring module configured to acquire road information that the vehicle is currently traveling
  • a navigation module configured to guide, by the electronic map, the first time duration of the vehicle to travel to the nearest service area when the road information is a highway.
  • an in-vehicle terminal comprising a camera, a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor executes the computer
  • the steps of the method as described above are implemented at the time of the program.
  • a computer readable storage medium comprising: the computer readable storage medium storing a computer program, the computer program being executed by a processor to implement the steps of the method as described above.
  • the solution has the beneficial effects that: in the embodiment of the present solution, the image information of the driver is collected during the running of the vehicle, and the facial feature information of the driver is extracted from the image information, according to the The facial feature information determines whether the driver is in a physiological fatigue state, and if the driver is in the physiological fatigue state, reminds the driver, and acquires road information that the vehicle is currently traveling, if the road information For the highway, the electronic vehicle is used to guide the vehicle to the nearest service area for the first time period of rest.
  • the embodiment of the present solution can more accurately determine whether the driver is in a physiological fatigue state by using the facial feature information of the driver.
  • the embodiment of the present solution can also adopt a corresponding anti-fatigue strategy according to the road that the vehicle is currently driving when the driver is in a physiological fatigue state, and has high ease of use and practicability.
  • Embodiment 1 is a schematic flow chart showing an implementation of a method for preventing fatigue driving provided in Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram showing an implementation flow of a method for preventing fatigue driving provided in Embodiment 2 of the present embodiment
  • Embodiment 3 is a schematic diagram showing an implementation flow of a method for preventing fatigue driving provided in Embodiment 3 of the present embodiment
  • Embodiment 4 is a schematic diagram of a device for preventing fatigue driving provided in Embodiment 4 of the present embodiment
  • Embodiment 5 is a schematic diagram of a device for preventing fatigue driving provided in Embodiment 5 of the present embodiment
  • FIG. 6 is a schematic diagram of an in-vehicle terminal provided in Embodiment 6 of the present solution.
  • Embodiment 1 is a schematic diagram of an implementation process of a method for preventing fatigue driving provided in Embodiment 1 of the present solution. As shown in the figure, the method may include the following steps:
  • step S101 image information of the driver is acquired during the running of the vehicle.
  • whether the vehicle is in the running process can be determined by detecting the state of the automobile engine, the rotational speed of the tire, and the like.
  • the driver's image information can be obtained by the camera recording, photographing, etc. by the camera.
  • the vehicle since the vehicle is not normally in a physiological fatigue state when the vehicle is just started, it can be set at a predetermined time (for example, 20 minutes) after the vehicle is started and the vehicle starts collecting image information of the driver during running.
  • a predetermined time for example, 20 minutes
  • step S102 facial feature information of the driver is extracted from the image information, and it is determined whether the driver is in a physiological fatigue state based on the facial feature information.
  • the facial feature information of the driver includes, but is not limited to, facial information such as an eye opening and closing situation of the driver, a mouth shape change, and the like.
  • the embodiment of the present solution may be set within a predetermined length of time to determine whether the driver is in a physiological fatigue state according to the number of times the driver opens the mouth to yawn and/or the time of continuous eye closing. For example, after the image information of the driver is acquired by the camera, the facial feature information of the driver is extracted from the image information, and whether the driver is physiologically determined according to the mouth shape of the driver and the opening and closing condition of the eyes in the facial feature information. In the fatigue state, the driver yawns more than 3 times in 4 minutes, or the duration of the closed eyes exceeds 3 seconds to determine that the driver is in a physiological fatigue state.
  • the image information may also be stored in a local memory, uploaded to a server, etc., as a basis for playback evidence or some vehicle driving status, driver evaluation, and real-time monitoring of the driver's driving state.
  • image information that is determined not to be in a physiological fatigue state may be deleted.
  • step S103 if the driver is in the physiological fatigue state, the driver is alerted and the road information on which the vehicle is currently traveling is acquired.
  • the driver may be reminded by one or more modes such as a horn, an indicator light or a prompt screen.
  • the in-vehicle digital video recorder Mobile
  • the Digital Video Recorders (MDVR) host sends an alarm command to the LED prompter of the vehicle terminal to remind the driver, and can also upload the collected image information, the extracted facial feature information and the alarm information to the server through the 3G/4G network. Save it.
  • the road information that the vehicle is currently traveling may be acquired.
  • the road information includes, but is not limited to, real-time location of the vehicle, a road section in which it is located, and whether there is a rest station nearby.
  • step S104 if the road information is a highway, the first time period in which the vehicle travels to the nearest service area rest is scheduled by an electronic map.
  • the expressway may be a road with four lanes or more, two-way separation driving, full control of the entrance and exit, and all adopting three-dimensional intersection.
  • the electronic map may be provided by a third party.
  • the request information for starting the engine sent by the driver may be verified, and after the verification is passed, the engine is restarted.
  • the verification may be to re-detect the fatigue state of the driver, and to receive a request to start the engine when it is determined that the driver is not in a physiological fatigue state; otherwise, the request is rejected.
  • Embodiment 2 is a schematic diagram of an implementation process of a method for preventing fatigue driving provided in Embodiment 2 of the present solution. As shown in the figure, the method may include the following steps:
  • step S201 image information of the driver is acquired during the running of the vehicle.
  • step S202 facial feature information of the driver is extracted from the image information, and it is determined whether the driver is in a physiological fatigue state based on the facial feature information.
  • step S203 if the driver is in the physiological fatigue state, the driver is alerted and the road information on which the vehicle is currently traveling is acquired.
  • steps S201, S202, and S203 in this embodiment are the same as the above-mentioned steps S101, S102, and S103.
  • steps S101, S102, and S103 are not described herein again.
  • step S204 if the road information is a highway, the electronic route of the vehicle to the nearest service area is marked by the electronic fence function of the electronic map, and the vehicle is driven according to the electronic route.
  • the distance from the nearest service area is voiced every predetermined time or predetermined travel distance, and after the vehicle arrives at the nearest service area, at a predetermined time It is prohibited to start the engine of the vehicle for the first time period.
  • the electronic route of the vehicle to the nearest service area is performed by the electronic fence function of the electronic map. Marking (only the electronic route to the service area can be displayed on the electronic map, and the electronic route is voiced), and the distance from the nearest service area is broadcasted by voice at a predetermined time interval or a predetermined travel distance, and After the vehicle arrives at the nearest service area, the driver is reminded to stop the fire, and after the flameout stops, the engine of the vehicle is prohibited from starting for a predetermined first period of time (eg, 30 minutes).
  • a predetermined first period of time eg, 30 minutes
  • Embodiment 3 is a schematic diagram of an implementation process of a method for preventing fatigue driving provided in Embodiment 3 of the present solution. As shown in the figure, the method may include the following steps:
  • step S301 image information of the driver is acquired during the running of the vehicle.
  • step S302 facial feature information of the driver is extracted from the image information, and it is determined whether the driver is in a physiological fatigue state based on the facial feature information.
  • step S303 if the driver is in the physiological fatigue state, the driver is alerted and the road information on which the vehicle is currently traveling is acquired.
  • step S304 if the road information is a highway section highway, the first time period in which the vehicle travels to the nearest service area rest is scheduled by an electronic map.
  • the steps S301, S302, S303, and S304 in this embodiment are the same as the above-mentioned steps S101, S102, S103, and S104.
  • steps S101, S102, S103, and S104 are not described herein again.
  • step S305 if the road information is a non-highway, the driver is reminded to stop, and when the parking instruction is not received within a predetermined second time period, the engine of the vehicle is turned off to a predetermined third time length.
  • the non-highway may be other road types than the high-speed road section, such as an ordinary national road, a national road, a county road, a rural road, and the like.
  • the reminding the driver to stop may be to remind the driver of the road information, and may also guide the driver to park on a road or area that can be legally parked.
  • step S306 if the request information for starting the engine is received within the predetermined third time period, the request information is verified, and after the verification is passed, the engine is restarted.
  • the request information for starting the engine sent by the driver may be verified, and after the verification is passed, the engine is restarted.
  • the verification may be to re-detect the fatigue state of the driver, and to receive a request to start the engine when it is determined that the driver is not in a physiological fatigue state; otherwise, the request is rejected.
  • the embodiment of the solution can not only realize accurate, real-time detection and early warning of the fatigue state, but also adopt different anti-fatigue strategy road information for the road type currently used by the vehicle.
  • prohibition of starting the vehicle and other measures within the predetermined time not only to remind the driver to pay attention to their fatigue driving state, but also to let them consciously get rest, has a strong ease of use and practicality.
  • the current geographic coordinate position of the vehicle, the road information of the vehicle and other map information are acquired in real time, and it is detected that the driver has 3 or more times in 4 minutes.
  • the fatigue driving reminder determines that the driver is in a physiological fatigue state and gives a corresponding reminder on the display screen of the vehicle terminal.
  • the server reports to the server, and the server obtains the location information of the nearest service area through the high-precision map positioning function, and delivers the information to the vehicle terminal, and the LED of the vehicle terminal.
  • the prompter gives a quick “Drip” alarm tone reminder and displays the electronic fence to the nearest service area on the display, followed by 3 times “You have been fatigued driving, please stop at the front xx meter service area.
  • Embodiment 4 is a schematic diagram of a device for preventing fatigue driving provided in Embodiment 4 of the present embodiment, and for convenience of explanation, only parts related to the embodiment of the present embodiment are shown.
  • the device includes:
  • An information collecting module configured to collect image information of the driver during running of the vehicle
  • a processing module configured to extract facial feature information of the driver from the collected image information, and determine, according to the facial feature information, whether the driver is in a physiological fatigue state;
  • a prompting module configured to alert the driver when the driver is in the physiological fatigue state
  • An information acquiring module configured to acquire road information that the vehicle is currently traveling
  • a navigation module configured to guide, by the electronic map, the first time duration of the vehicle to travel to the nearest service area when the road information is a highway.
  • FIG. 5 is a schematic diagram of a device for preventing fatigue driving provided in Embodiment 5 of the present embodiment, and for convenience of explanation, only parts related to the embodiment of the present embodiment are shown.
  • the system includes:
  • An information collecting module configured to collect image information of the driver during running of the vehicle
  • a processing module configured to extract facial feature information of the driver from the collected image information, and determine, according to the facial feature information, whether the driver is in a physiological fatigue state;
  • a prompting module configured to alert the driver when the driver is in the physiological fatigue state
  • An information acquiring module configured to acquire road information that the vehicle is currently traveling
  • a navigation module configured to guide, by the electronic map, the first time duration of the vehicle to the nearest service area rest when the road information is a highway;
  • a control module configured to: if the road information is a non-highway, remind the driver to stop, and when the parking instruction is not received within a predetermined second time period, turn off the engine of the vehicle to a predetermined third duration.
  • FIG. 6 is a schematic diagram of an in-vehicle terminal provided in Embodiment 6 of the present solution.
  • the in-vehicle terminal 6 of this embodiment includes a processor 60, a memory 61, a computer program 62 stored in the memory 61 and operable on the processor 60, and a camera 63.
  • the processor 60 executes the computer program 62 to implement the steps in the various method embodiments of the above-described prevention of fatigue driving, such as steps 102 to 104 shown in FIG.
  • the processor 60 when executing the computer program 62, implements the functions of the various modules in the various apparatus embodiments described above, such as the functions of the modules 52-54 shown in FIG.
  • the camera 63 implements the steps of collecting image information of the driver as described in the foregoing method for preventing fatigue driving, such as step 101 shown in FIG.
  • the camera 63 implements the functions of the information collecting module in the above-described respective device embodiments, that is, the function of the module 51 shown in FIG.
  • the computer program 62 can be partitioned into one or more modules that are stored in the memory 61 and executed by the processor 60 to complete the present solution.
  • the one or more modules may be a series of computer program instruction segments capable of performing a particular function, the instruction segments being used to describe the execution of the computer program 62 in the vehicle-mounted terminal 6.
  • the computer program 62 can be divided into a processing module, a prompting module, an information acquiring module, and a navigation module.
  • the specific functions of each module are as follows:
  • a processing module configured to extract facial feature information of the driver from the collected image information, and determine, according to the facial feature information, whether the driver is in a physiological fatigue state;
  • a prompting module configured to alert the driver when the driver is in the physiological fatigue state
  • An information acquiring module configured to acquire road information that the vehicle is currently traveling
  • a navigation module configured to guide, by the electronic map, the first time duration of the vehicle to travel to the nearest service area when the road information is a highway.
  • the in-vehicle terminal 6 may be a computing device such as a desktop computer, a notebook, a palmtop computer, and a cloud server.
  • the vehicle-mounted terminal may include, but is not limited to, a processor 60, a memory 61, and a camera 63. It will be understood by those skilled in the art that FIG. 6 is only an example of the in-vehicle terminal 6, does not constitute a limitation of the in-vehicle terminal 6, may include more or less components than those illustrated, or combine some components, or different components.
  • the in-vehicle terminal may further include an input/output device, a network access device, a bus, and the like.
  • the so-called processor 60 can be a central processing unit (Central Processing Unit, CPU), can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 61 may be an internal storage unit of the in-vehicle terminal 6, such as a hard disk or a memory of the in-vehicle terminal 6.
  • the memory 61 may also be an external storage device of the in-vehicle terminal 6, such as a plug-in hard disk provided on the in-vehicle terminal 6, a smart memory card (SMC), and a secure digital (SD). Card, flash card (Flash Card) and so on.
  • the memory 61 may also include both an internal storage unit of the in-vehicle terminal 6 and an external storage device.
  • the memory 61 is used to store the computer program and other programs and data required by the in-vehicle terminal.
  • the memory 61 can also be used to temporarily store data that has been output or is about to be output.
  • the vehicle-mounted terminal 6 further includes a prompting device, and the prompting device may include one or more devices of a speaker, an indicator light, and a display screen, and the prompting device may implement the foregoing method for preventing fatigue driving. The function of alerting the driver is described.
  • each functional unit and module described above is exemplified. In practical applications, the above functions may be assigned to different functional units as needed.
  • the module is completed by dividing the internal structure of the device into different functional units or modules to perform all or part of the functions described above.
  • Each functional unit and module in the embodiment may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit, and the integrated unit may be hardware.
  • Formal implementation can also be implemented in the form of software functional units.
  • the specific names of the respective functional units and modules are only for the purpose of facilitating mutual differentiation, and are not intended to limit the scope of protection of the present application.
  • For the specific working process of the unit and the module in the foregoing system reference may be made to the corresponding process in the foregoing method embodiment, and details are not described herein again.
  • the disclosed device/terminal device and method may be implemented in other manners.
  • the device/terminal device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units.
  • components may be combined or integrated into another system, or some features may be omitted or not performed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present solution may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated modules if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the present solution implements all or part of the processes in the foregoing embodiment, and may also be completed by a computer program to instruct related hardware.
  • the computer program may be stored in a computer readable storage medium. The steps of the various method embodiments described above may be implemented when the program is executed by the processor.
  • the computer program comprises computer program code, which may be in the form of source code, object code form, executable file or some intermediate form.
  • the computer readable medium can include any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard drive, a magnetic disk, an optical disk, a computer memory, a read only memory (ROM, Read-Only) Memory), random access memory (RAM, Random) Access Memory), electrical carrier signals, telecommunications signals, and software distribution media.
  • ROM Read Only memory
  • RAM Random Access Memory

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Abstract

一种预防疲劳驾驶的方法、装置及车载终端，包括：在车辆行驶过程中，采集驾驶员的图像信息；从所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；若所述驾驶员处于所述生理疲劳状态，对所述驾驶员进行提醒，并获取所述车辆当前行驶的道路信息；若所述道路信息为高速公路，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。在驾驶员处于生理疲劳状态时，可以根据车辆当前行驶的道路进行相应的防疲劳驾驶处理。

Description

一种预防疲劳驾驶的方法、装置及车载终端 技术领域
本方案涉及安全驾驶技术领域，特别是涉及一种预防疲劳驾驶的方法、装置及车载终端。
 背景技术
汽车等交通工具的普及给人们出行带来了极大的方便，但驾驶员的疲劳驾驶也给汽车出行带来了极大的安全隐患。
目前，有通过压力传感器等设备检测司机开车前后状态等方式来预防疲劳驾驶的技术，通过采集司机手部、足部血压信息，结合司机在疲劳与正常状态下对方向盘和油门处施加的压力不同来判断司机是否已处于疲劳状态并做出预警。但申请人发现现有的检测方式因司机在平常状态下也会出现一些轻握轻踩情况，容易导致疲劳状态的误判。
 技术问题
基于此，本方案提供了一种预防疲劳驾驶的方法、装置及车载终端，以在提高疲劳状态判断准确率的同时，可以根据车辆当前行驶的道路进行相应的防疲劳驾驶处理。
 技术解决方案
一方面，提供了一种预防疲劳驾驶的方法，包括：
在车辆行驶过程中，采集驾驶员的图像信息；
从所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；
若所述驾驶员处于所述生理疲劳状态，对所述驾驶员进行提醒，并获取所述车辆当前行驶的道路信息；
若所述道路信息为高速公路，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
第二方面，提供了一种预防疲劳驾驶的装置，包括：
信息采集模块，用于在车辆行驶过程中，采集驾驶员的图像信息；
处理模块，用于从采集的图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；
提示模块，用于在所述驾驶员处于所述生理疲劳状态时，对所述驾驶员进行提醒；
信息获取模块，用于获取所述车辆当前行驶的道路信息；
导航模块，用于在所述道路信息为高速公路时，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
第三方面，提供了一种车载终端，包括摄像头、存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现如上所述方法的步骤。
第四方面，提供了一种计算机可读存储介质，包括：所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现如上所述方法的步骤。
 有益效果
本方案与现有技术相比存在的有益效果是：本方案实施例在车辆行驶过程中，采集驾驶员的图像信息，从所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态，若所述驾驶员处于所述生理疲劳状态，对所述驾驶员进行提醒，并获取所述车辆当前行驶的道路信息，若所述道路信息为高速公路，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。本方案实施例通过驾驶员的面部特征信息可以更准确的判断出所述驾驶员是否处于生理疲劳状态。而且，在判断的过程中，不需要将驾驶员开车前后的状态进行对比，根据当前获取的面部特征信息即可快速判断出驾驶员是否处于生理疲劳状态，避免了前后状态对比导致的时间延迟大、准确率低的问题。另外，本方案实施例还可以在驾驶员处于生理疲劳状态时根据车辆当前行驶的道路采用相应的防疲劳策略，具有较高的易用性和实用性。
 附图说明
为了更清楚地说明本方案实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本方案的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本方案实施例一提供的预防疲劳驾驶的方法的实现流程示意图；
图2是本方案实施例二提供的预防疲劳驾驶的方法的实现流程示意图；
图3是本方案实施例三提供的预防疲劳驾驶的方法的实现流程示意图；
图4是本方案实施例四提供的预防疲劳驾驶的装置的示意图；
图5是本方案实施例五提供的预防疲劳驾驶的装置的示意图；
图6是本方案实施例六提供的车载终端的示意图。
本方案的实施方式
以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、技术之类的具体细节，以便透彻理解本方案实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本方案。在其它情况中，省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节妨碍本方案的描述。
为了说明本方案所述的技术方案，下面通过具体实施例来进行说明。
图1是本方案实施例一提供的预防疲劳驾驶的方法的实现流程示意图，如图所示该方法可以包括以下步骤：
在步骤S101中，在车辆行驶过程中，采集驾驶员的图像信息。
在本方案实施例中，可以通过检测汽车发动机的状态、轮胎的转速等来确定所述车辆是否在行驶过程中。驾驶员的图像信息可以通过摄像头对驾驶员进行录像、拍照等方式获得。
较佳的，由于车辆刚刚启动时，一般不会处于生理疲劳状态，因此可以设定在车辆启动后的预定时间（例如20分钟）且车辆在行驶过程中开始采集驾驶员的图像信息。
在步骤S102中，从所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态。
在本方案实施例中，所述驾驶员的面部特征信息包括但不限于驾驶员的眼睛开闭情况、口型变化等面部信息。
示例性的，本方案实施例可以设定在预定的时长内，根据所述驾驶员张嘴打哈欠的次数和/或连续闭眼的时间确定所述驾驶员是否处于生理疲劳状态。例如，在通过摄像头采集驾驶员的图像信息之后，从所述图像信息中提取所述驾驶员的面部特征信息，根据面部特征信息中驾驶员的口型和眼睛开闭情况判断驾驶员是否处于生理疲劳状态，以4分钟内驾驶员张嘴打哈欠的次数超过3次，或者连续闭眼时长超过3秒判定所述驾驶员处于生理疲劳状态。
本方案实施例中，所述图像信息还可以保存在本地存储器、上传至服务器等，作为回放证据或一些车辆行驶状态、司机考核查看的依据，也可以实时监控驾驶员驾驶状态。
可选的，为了节省存储空间，对于判定出不属于生理疲劳状态的图像信息可以删除。
在步骤S103中，若所述驾驶员处于所述生理疲劳状态，对所述驾驶员进行提醒，并获取所述车辆当前行驶的道路信息。
在本方案实施例中可以通过鸣喇叭、指示灯或者提示画面等一种或多种方式对驾驶员进行提醒。例如，在确定所述驾驶员处于生理疲劳状态时，车载数字视频录像机（Mobile Digital Video Recorders，MDVR）主机发送报警指令给车载终端的LED提示器以对所述驾驶员进行提醒，还可将采集的图像信息、提取的面部特征信息和报警信息通过3G/4G网络上传到服务器进行保存。
示例性的，本方案实施例中可以在对驾驶员进行提醒的次数在预定的时间内达到预定的次数后，获取所述车辆当前行驶的道路信息。所述道路信息包括但不限于车辆的实时位置、所处路段、附近有无休息站等信息。
在步骤S104中，若所述道路信息为高速公路，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
在本方案实施例中，所述高速公路可以是有4车道以上、两向分隔行驶、完全控制出入口、全部采用立体交叉的公路。所述电子地图可以由第三方提供。通过引导所述车辆行驶至最近的服务区休息预定的第一时长（例如30分钟），可以使所述驾驶员缓解疲劳后再继续驾驶。
优选的，若在所述预定的第一时长内接收到驾驶员发送的启动发动机的请求信息，可以对所述请求信息进行验证，在验证通过后，重新启动所述发动机。示例性的，所述验证可以是重新检测驾驶员的疲劳状态，在确定驾驶员不属于生理疲劳状态时，接收启动发动机的请求；否则，拒绝该请求。
通过图1的实施例可知，在本方案实施例中，通过采集驾驶员的图像信息，判断所述驾驶员是否处于生理疲劳状态并进行提醒，并获取所述车辆当前行驶的道路信息，若所述道路信息为高速公路，通过引导所述车辆行驶至最近的服务区休息预定的第一时长，可以识别驾驶员是否处于生理疲劳状态且车辆当前行驶的道路为高速公路时可以进行相应的预防处理，对高速公路上的疲劳驾驶做出合理的应对策略，具有较高的实用性。
图2是本方案实施例二提供的预防疲劳驾驶的方法的实现流程示意图，如图所示该方法可以包括以下步骤：
在步骤S201中，在车辆行驶过程中，采集驾驶员的图像信息。
在步骤S202中，从所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态。
在步骤S203中，若所述驾驶员处于所述生理疲劳状态，对所述驾驶员进行提醒，并获取所述车辆当前行驶的道路信息。
本实施例步骤S201、S202、S203与上述步骤S101、S102、S103相同，具体可参见步骤S101、S102、S103相关描述，在此不再赘述。
在步骤S204中，若所述道路信息为高速公路，通过所述电子地图的电子围栏功能，对所述车辆前往最近的服务区的电子路线进行标注，并在所述车辆根据所述电子路线行驶至所述最近的服务区的过程中，每隔预定的时间或预定的行驶距离语音播报距离所述最近的服务区的距离，并在所述车辆到达所述最近的服务区后，在预定的第一时长内禁止启动所述车辆的发动机。
需要说明的是，若判定所述驾驶员处于生理疲劳状态，且车辆当前行驶的道路属于高速公路，则通过所述电子地图的电子围栏功能，对所述车辆前往最近的服务区的电子路线进行标注（可以在所述电子地图上只显示前往服务区的电子路线，并语音播报该电子路线），通过语音按预定时间间隔或者预定行驶距离后播报距离所述最近的服务区的距离，并在所述车辆到达所述最近的服务区后，提醒驾驶员熄火停车，并在熄火停车之后，在预定的第一时长（例如30分钟）内禁止启动所述车辆的发动机。
图3是本方案实施例三提供的预防疲劳驾驶的方法的实现流程示意图，如图所示该方法可以包括以下步骤：
在步骤S301中，在车辆行驶过程中，采集驾驶员的图像信息。
在步骤S302中，从所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态。
在步骤S303中，若所述驾驶员处于所述生理疲劳状态，对所述驾驶员进行提醒，并获取所述车辆当前行驶的道路信息。
在步骤S304中，若所述道路信息为高速路段高速公路，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
本实施例步骤S301、S302、S303、S304与上述步骤S101、S102、S103、S104相同，具体可参见步骤S101、S102、S103、S104相关描述，在此不再赘述。
在步骤S305中，若所述道路信息为非高速公路，提醒所述驾驶员停车，在预定的第二时长内未接收到停车指令时，关闭所述车辆的发动机至预定的第三时长。
在本方案实施例中，所述非高速公路可以是高速路段之外的其他道路类型，例如普通国道、省道、县道、乡道等。所述提醒所述驾驶员停车可以是提醒驾驶员所述道路信息，还可以引导驾驶员在可以合法停车的道路或区域停车。
在步骤S306中，若在所述预定的第三时长内接收到启动发动机的请求信息，则对所述请求信息进行验证，在验证通过后，重新启动所述发动机。
优选的，若在所述预定的第三时长内接收到驾驶员发送的启动发动机的请求信息，可以对所述请求信息进行验证，在验证通过后，重新启动所述发动机。示例性的，所述验证可以是重新检测驾驶员的疲劳状态，在确定驾驶员不属于生理疲劳状态时，接收启动发动机的请求；否则，拒绝该请求。
通过图3的实施例可知，本方案实施例不仅可以实现疲劳状态的准确、实时检测及预警，还可以针对车辆当前行驶的道路类型采取不同的防疲劳策略道路信息。另外，通过强制停车、预定时间内禁止启动车辆等处理措施，不但起到提醒驾驶员要注意自己的疲劳驾驶状态，还能让其有意识地得到休息，具有较强的易用性和实用性。
为了更好的理解本方案实施例，下面通过一具体实例来说明上述过程：
通过车载终端的GPS定位模块与高精度地图相结合，实时获取车辆当前的地理坐标位置、车辆所在的道路信息及其他地图信息，在检测到驾驶员在4分钟内存在3次或3次以上的疲劳驾驶提醒，则判定驾驶员已处于生理疲劳状态，在车载终端的显示屏上给予相应的提醒。对于中途不能随意停车的高速公路，在确定驾驶员已疲劳驾驶的情况下，上报服务器，服务器端通过高精度地图定位功能获取最近的服务区位置信息，并下发到车载终端，车载终端的LED提示器给予急促“滴滴滴”报警音提醒，并在显示屏上显示到所述最近的服务区的电子围栏，接着伴有3遍“您已疲劳驾驶，请在前方xx米服务区停车休息！”语音提示，到服务区后休息至少30分钟（可自行设置时长）才能再次行车，在此期间给车辆点火无效，此功能有关闭选项，关闭信息需要服务器验证通过；同理，对于中途可以在规定位置停车的普通国道、省道、县道、乡道等路型，LED提示器给予急促“滴滴滴”报警音提醒，接着伴有3遍“您已疲劳驾驶，请在4分钟内停车休息！”语音提示，4分钟后若还未停车则强制停车休息至少30分钟（可自行设置时长），此功能设置开关选项，对于特殊情况可选择取消该强制停车功能，但此取消操作指令需要服务器验证通过。
图4是本方案实施例四提供的预防疲劳驾驶的装置的示意图，为了便于说明，仅示出了与本方案实施例相关的部分。
所述装置包括：
信息采集模块，用于在车辆行驶过程中，采集驾驶员的图像信息；
处理模块，用于从采集的图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；
提示模块，用于在所述驾驶员处于所述生理疲劳状态时，对所述驾驶员进行提醒；
信息获取模块，用于获取所述车辆当前行驶的道路信息；
导航模块，用于在所述道路信息为高速公路时，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
图5是本方案实施例五提供的预防疲劳驾驶的装置的示意图，为了便于说明，仅示出了与本方案实施例相关的部分。
所述系统包括：
信息采集模块，用于在车辆行驶过程中，采集驾驶员的图像信息；
处理模块，用于从采集的图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；
提示模块，用于在所述驾驶员处于所述生理疲劳状态时，对所述驾驶员进行提醒；
信息获取模块，用于获取所述车辆当前行驶的道路信息；
导航模块，用于在所述道路信息为高速公路时，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长；
控制模块，用于若所述道路信息为非高速公路，提醒所述驾驶员停车，在预定的第二时长内未接收到停车指令时，关闭所述车辆的发动机至预定的第三时长。
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本方案实施例的实施过程构成任何限定。
图6是本方案实施例六提供的车载终端的示意图。如图6所示，该实施例的车载终端6包括：处理器60、存储器61、存储在所述存储器61中并可在所述处理器60上运行的计算机程序62、摄像头63。所述处理器60执行所述计算机程序62时实现上述各个预防疲劳驾驶的方法实施例中的步骤，例如图1所示的步骤102至104。或者，所述处理器60执行所述计算机程序62时实现上述各装置实施例中各模块的功能，例如图5所示模块52至54的功能。所述摄像头63实现上述各个预防疲劳驾驶的方法实施例中所述采集驾驶员的图像信息的步骤，例如图1所示的步骤101。或者，所述摄像头63实现上述各装置实施例中信息采集模块的功能，即图5所示模块51的功能。
示例性的，所述计算机程序62可以被分割成一个或多个模块，所述一个或者多个模块被存储在所述存储器61中，并由所述处理器60执行，以完成本方案。所述一个或多个模块可以是能够完成特定功能的一系列计算机程序指令段，该指令段用于描述所述计算机程序62在所述车载终端6中的执行过程。例如，所述计算机程序62可以被分割成处理模块、提示模块、信息获取模块、导航模块，各模块具体功能如下：
处理模块，用于从采集的图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；
提示模块，用于在所述驾驶员处于所述生理疲劳状态时，对所述驾驶员进行提醒；
信息获取模块，用于获取所述车辆当前行驶的道路信息；
导航模块，用于在所述道路信息为高速公路时，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
所述车载终端6可以是桌上型计算机、笔记本、掌上电脑及云端服务器等计算设备。所述车载终端可包括，但不仅限于，处理器60、存储器61、摄像头63。本领域技术人员可以理解，图6仅仅是车载终端6的示例，并不构成对车载终端6的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件，例如所述车载终端还可以包括输入输出设备、网络接入设备、总线等。
所称处理器60可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器 (Digital Signal Processor，DSP)、专用集成电路 (Application Specific Integrated Circuit，ASIC)、现成可编程门阵列 (Field-Programmable Gate Array，FPGA) 或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
所述存储器61可以是所述车载终端6的内部存储单元，例如车载终端6的硬盘或内存。所述存储器61也可以是所述车载终端6的外部存储设备，例如所述车载终端6上配备的插接式硬盘，智能存储卡（Smart Media Card, SMC），安全数字（Secure Digital, SD）卡，闪存卡（Flash Card）等。进一步地，所述存储器61还可以既包括所述车载终端6的内部存储单元也包括外部存储设备。所述存储器61用于存储所述计算机程序以及所述车载终端所需的其他程序和数据。所述存储器61还可以用于暂时地存储已经输出或者将要输出的数据。
优选的，所述车载终端6还包括提示器，所述提示器可以包括扬声器、指示灯和显示屏中的一种或者多种装置，所述提示器可以实现上述各个预防疲劳驾驶的方法实施例中所述对所述驾驶员进行提醒的功能。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中，上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述或记载的部分，可以参见其它实施例的相关描述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本方案的范围。
在本方案所提供的实施例中，应该理解到，所揭露的装置/终端设备和方法，可以通过其它的方式实现。例如，以上所描述的装置/终端设备实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通讯连接可以是通过一些接口，装置或单元的间接耦合或通讯连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本方案各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的模块如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本方案实现上述实施例方法中的全部或部分流程，也可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一计算机可读存储介质中，该计算机程序在被处理器执行时，可实现上述各个方法实施例的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质可以包括：能够携带所述计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器（ROM，Read-Only Memory）、随机存取存储器（RAM，Random Access Memory）、电载波信号、电信信号以及软件分发介质等。需要说明的是，所述计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减，例如在某些司法管辖区，根据立法和专利实践，计算机可读介质不包括电载波信号和电信信号。
以上所述实施例仅用以说明本方案的技术方案，而非对其限制；尽管参照前述实施例对本方案进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本方案各实施例技术方案的精神和范围，均应包含在本方案的保护范围之内。

Claims (10)

  1. 一种预防疲劳驾驶的方法，其特征在于，包括：
    在车辆行驶过程中，采集驾驶员的图像信息；
    从所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；
    若所述驾驶员处于所述生理疲劳状态，对所述驾驶员进行提醒，并获取所述车辆当前行驶的道路信息；
    若所述道路信息为高速公路，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
  2. 如权利要求1所述的方法，其特征在于，若所述道路信息为高速公路，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长包括：
    若所述道路信息为高速公路，通过所述电子地图的电子围栏功能，对所述车辆前往最近的服务区的电子路线进行标注，并在所述车辆根据所述电子路线行驶至所述最近的服务区的过程中，每隔预定的时间或预定的行驶距离语音播报距离所述最近的服务区的距离，并在所述车辆到达所述最近的服务区后，在预定的第一时长内禁止启动所述车辆的发动机。
  3. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    若所述道路信息为非高速公路，提醒所述驾驶员停车，并在预定的第二时长内未接收到停车指令时，关闭所述车辆的发动机至预定的第三时长。
  4. 如权利要求3所述的方法，其特征在于，在关闭所述车辆的发动机至预定的第三时长之后，还包括：
    若在所述预定的第三时长内接收到启动发动机的请求信息，则对所述请求信息进行验证，在验证通过后，重新启动所述发动机。
  5. 如权利要求1至4任一项所述的方法，其特征在于，所述根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态包括：
    在预定的第四时长内，根据所述驾驶员张嘴打哈欠的次数和/或连续闭眼的时间确定所述驾驶员是否处于生理疲劳状态。
  6. 一种预防疲劳驾驶的装置，其特征在于，包括：
    信息采集模块，用于在车辆行驶过程中，采集驾驶员的图像信息；
    处理模块，用于从采集的所述图像信息中提取所述驾驶员的面部特征信息，根据所述面部特征信息判断所述驾驶员是否处于生理疲劳状态；
    提示模块，用于在所述驾驶员处于所述生理疲劳状态时，对所述驾驶员进行提醒；
    信息获取模块，用于获取所述车辆当前行驶的道路信息；
    导航模块，用于在所述道路信息为高速公路时，通过电子地图引导所述车辆行驶至最近的服务区休息预定的第一时长。
  7. 如权利要求6所述的装置，其特征在于，所述导航模块具体用于：
    若所述道路信息为高速公路，通过所述电子地图的电子围栏功能，对所述车辆前往最近的服务区的电子路线进行标注，并在所述车辆根据所述电子路线行驶至所述最近的服务区的过程中，每隔预定的时间或预定的行驶距离语音播报距离所述最近的服务区的距离，并在所述车辆到达所述最近的服务区后，在预定的第一时长内禁止启动所述车辆的发动机。
  8. 如权利要求6所述的装置，其特征在于，还包括：
    控制模块，用于在所述道路信息为非高速公路时，提醒所述驾驶员停车，在预定的第二时长内未接收到停车指令时，关闭所述车辆的发动机至预定的第三时长。
  9. 一种车载终端，包括摄像头、存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现如权利要求1至5任一项所述方法的步骤。
  10. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1至5任一项所述方法的步骤。
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