技术领域technical field
本发明涉及车辆安全技术领域，尤其涉及防酒驾和防瞌睡系统及防酒驾和防瞌睡方法。The invention relates to the technical field of vehicle safety, in particular to an anti-drinking driving and drowsiness prevention system and a method for preventing drunk driving and drowsiness.
背景技术Background technique
随着社会经济的飞速发展与科技的不断进步，在日常生活中，汽车已经成为了人们主流的出行交通工具。虽然汽车给人们生活和工作带来了许多方便，但伴随而来的交通事故也频频发生，这不得不引起人们驾车的谨慎。With the rapid development of social economy and continuous advancement of science and technology, cars have become the mainstream means of transportation for people in daily life. Although automobiles have brought a lot of convenience to people's life and work, the accompanying traffic accidents also occur frequently, which has to arouse people's caution in driving.
究其原因，有的是因疲劳驾驶而导致，驾驶员在长时间行驶于公路时，均会产生严重的疲劳感，特别是在夜间行驶时，这时候，也是路上交通的危险期，许多交通事故常常就是因为驾驶员的疏忽，在不知不觉中睡着了，进而发生意外。为防止驾驶员打瞌睡，已有一些提示驾驶员专心驾驶、防止驾驶员打瞌睡的装置被采用，例如：车用影音装置、座垫按摩装置等。然而，上述装置存在安装时不便利、成本高且不能可靠地预防瞌睡的缺点。Tracing it to its cause, some are caused by fatigue driving. When driving on the road for a long time, the driver will have a serious sense of fatigue, especially when driving at night. At this time, it is also a dangerous period for road traffic. Many traffic accidents often occur It was because of the negligence of the driver that he fell asleep unknowingly, and then the accident happened. In order to prevent the driver from dozing off, some devices that prompt the driver to concentrate on driving and prevent the driver from dozing off have been adopted, such as: car audio-visual devices, seat cushion massage devices, etc. However, the above-mentioned devices have the disadvantages of inconvenient installation, high cost, and inability to reliably prevent drowsiness.
引起交通事故的另一个原因是因酒后驾驶而导致。目前，为了杜绝酒后驾车现象，交通部门动员大量的警力在交通检查中通过便携式酒精检测仪测试驾驶员是否饮酒，酒精含量多少等。然而，采用这种靠人力来检查和惩处酒后驾车的方式，既耗费了大量的人力物力，还常常防不胜防难以杜绝消除此现象，不能可靠地预防酒后驾车，不能及时地发现并提醒驾驶员其体内酒精含量超标的情况。Another cause of traffic accidents is caused by drunk driving. At present, in order to put an end to the phenomenon of drunk driving, the traffic department mobilizes a large number of police forces to test whether the driver is drinking, the alcohol content, etc. through a portable alcohol detector during traffic inspection. However, adopting this method of relying on manpower to check and punish drunk driving has both consumed a large amount of manpower and material resources, and it is often impossible to prevent and eliminate this phenomenon. It cannot reliably prevent drunk driving, and it cannot be discovered and reminded in time. The alcohol content in his body exceeded the standard situation.
发明内容Contents of the invention
因此，本发明提供防酒驾和防瞌睡系统及方法，以克服现有车辆安全技术存在的问题。Therefore, the present invention provides an anti-drunk driving and anti-drowsiness system and method to overcome the problems existing in the existing vehicle safety technology.
具体地，本发明实施例提出的一种防酒驾和防瞌睡系统，包括摄像头、热成像传感器、发动机控制器以及控制器。摄像头用于采集并提供驾驶员的脸部信息；热成像传感器用于检测并提供驾驶员脸部血液流动信息；发动机控制器用于控制发动机的工作；控制器与摄像头、热成像传感器及发动机控制器电性相连，用于根据摄像头提供的脸部信息及热成像传感器提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态，判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器以使发动机限制车辆的行驶速度。Specifically, an anti-drinking driving and anti-drowsiness system proposed by an embodiment of the present invention includes a camera, a thermal imaging sensor, an engine controller, and a controller. The camera is used to collect and provide the driver's face information; the thermal imaging sensor is used to detect and provide the driver's face blood flow information; the engine controller is used to control the work of the engine; the controller and camera, thermal imaging sensor and engine controller Electrically connected, it is used to judge whether the driver is in a state of drunk driving or about to fall asleep according to the facial information provided by the camera and the facial blood flow information provided by the thermal imaging sensor. If the driver is in a state of drunk driving, it will send a signal to turn off the engine Command to the engine controller to stop the engine, if it is judged that the driver is about to fall asleep, then send a speed limit signal to the engine controller to make the engine limit the speed of the vehicle.
另外，本发明实施例提出的一种防酒驾和防瞌睡方法，包括步骤：摄像头提供驾驶员的脸部信息，热成像传感器提供驾驶员脸部血液流动信息；控制器根据摄像头提供的脸部信息及热成像传感器提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态；以及判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器以使发动机限制车辆的行驶速度。In addition, an anti-drunk driving and anti-drowsiness method proposed by the embodiment of the present invention includes the steps: the camera provides the driver's face information, the thermal imaging sensor provides the driver's facial blood flow information; and the facial blood flow information provided by the thermal imaging sensor to determine whether the driver is in a state of drunk driving or about to fall asleep; If the driver is about to fall asleep, then send a speed limit signal to the engine controller to make the engine limit the speed of the vehicle.
由上述实施例可知，本发明通过控制器根据摄像头提供的脸部信息及热成像传感器提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态，判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器以使发动机限制车辆的行驶速度。这样，使得能够及时、方便、准确、可靠地发现驾驶员是否酒驾或打瞌睡，在驾驶员酒驾或打瞌睡时能够及时灵活地控制车辆的相应工作状态，从而保证了行车的安全性及可靠性。As can be seen from the above-mentioned embodiments, the present invention judges whether the driver is in a drunk driving state or about to fall asleep through the controller according to the facial information provided by the camera and the facial blood flow information provided by the thermal imaging sensor, and judges that if the driver is in a drunk driving state, Then send an order to shut down the engine to the engine controller to stop the engine, and if it is judged that the driver is about to fall asleep, then send a speed limit signal to the engine controller to make the engine limit the speed of the vehicle. In this way, it is possible to timely, conveniently, accurately and reliably find out whether the driver is drunk driving or dozing off, and when the driver is drunk driving or dozing off, the corresponding working state of the vehicle can be flexibly controlled in time, thereby ensuring the safety and reliability of driving. .
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂，以下特举较佳实施例，并配合附图，详细说明如下。The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.
附图说明Description of drawings
图1是本发明实施例提出的防酒驾和防瞌睡系统的主要架构框图；Fig. 1 is the main frame diagram of the anti-drunk driving and anti-drowsiness system that the embodiment of the present invention proposes;
图2是本发明另一实施例提出的防酒驾和防瞌睡系统的主要架构框图；Fig. 2 is the main structural block diagram of anti-drunk driving and anti-drowsiness system that another embodiment of the present invention proposes;
图3是本发明实施例提出的防酒驾和防瞌睡方法的步骤流程图；Fig. 3 is a flow chart of the steps of the anti-drunk driving and anti-drowsiness method proposed by the embodiment of the present invention;
图4是本发明另一实施例提出的防酒驾和防瞌睡方法的步骤流程图。Fig. 4 is a flow chart of the steps of the anti-drunk driving and anti-drowsiness method proposed by another embodiment of the present invention.
具体实施方式Detailed ways
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本发明提出的防酒驾和防瞌睡系统及防酒驾和防瞌睡方法其具体实施方式、结构、特征及功效，详细说明如后。For further elaborating the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the anti-drinking driving and anti-drowsiness system and the anti-drinking driving and anti-drowsiness method proposed according to the present invention are specifically described. Embodiments, structures, features and effects are described in detail below.
有关本发明的前述及其他技术内容、特点及功效，在以下配合参考图式的较佳实施例详细说明中将可清楚的呈现。通过具体实施方式的说明，当可对本发明为达成预定目的所采取的技术手段及功效得以更加深入且具体的了解，然而所附图式仅是提供参考与说明之用，并非用来对本发明加以限制。The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of specific implementation methods, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the present invention limit.
图1是本发明实施例提出的防酒驾和防瞌睡系统的主要架构框图。请参阅图1，防酒驾和防瞌睡系统包括：摄像头101、热成像传感器103、控制器105以及发动机控制器107。FIG. 1 is a block diagram of the main structure of the anti-drunk driving and anti-drowsiness system proposed by the embodiment of the present invention. Please refer to FIG. 1 , the anti-drinking driving and anti-drowsiness system includes: a camera 101 , a thermal imaging sensor 103 , a controller 105 and an engine controller 107 .
更具体地，摄像头101，与控制器105电性相连，用于采集并提供驾驶员的脸部信息。More specifically, the camera 101 is electrically connected to the controller 105 for collecting and providing facial information of the driver.
其中，摄像头101可以为红外摄像头，其可采集到驾驶员的眼球滚动、眼睛充血、面部泛红、瞳孔放大、咬嘴唇、耸鼻子、呼吸频率、吞咽唾液、眨眼睛或面部抽搐等脸部的各种表情信息。Wherein, the camera 101 can be an infrared camera, which can collect the driver's facial motions such as rolling eyeballs, bloodshot eyes, flushed face, dilated pupils, biting lips, shrugging nose, breathing rate, swallowing saliva, blinking or facial twitching. Various expression information.
热成像传感器103，与控制器105电性相连，用于检测并提供驾驶员脸部血液流动信息。The thermal imaging sensor 103 is electrically connected with the controller 105 for detecting and providing information on the blood flow on the face of the driver.
其中，热成像传感器203为接触式或非接触式的高分辨率的热成像传感器，其可检测到皮肤中血液流动的细微变化情况。通常在酒驾状态，驾驶员的血液流动会比较快，在即将瞌睡状态，驾驶员的血液流动会比较慢。Wherein, the thermal imaging sensor 203 is a contact or non-contact high-resolution thermal imaging sensor, which can detect subtle changes in blood flow in the skin. Generally, in the state of drunk driving, the blood flow of the driver will be faster, and in the state of drowsiness, the blood flow of the driver will be slower.
发动机控制器107，与控制器105电性相连，用于控制发动机的工作。The engine controller 107 is electrically connected with the controller 105 and is used to control the operation of the engine.
控制器107，与摄像头101、热成像传感器103及发动机控制器107电性相连，用于根据摄像头101提供的脸部信息及热成像传感器103提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态，判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器107以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器107以使发动机限制车辆的行驶速度。The controller 107 is electrically connected with the camera 101, the thermal imaging sensor 103 and the engine controller 107, and is used to judge whether the driver is in a drunk driving state according to the facial information provided by the camera 101 and the facial blood flow information provided by the thermal imaging sensor 103 , be about to drowsy state, when judging that if the driver is in the drunk driving state, then send the command of shutting down the engine to the engine controller 107 so that the engine stops working, if judging that the driver is in the about to doze off state, then send the speed limit signal to the engine controller 107 to make the engine limit the speed of the vehicle.
在本发明实施例中，本发明通过控制器105根据摄像头101提供的脸部信息及热成像传感器103提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态，判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器107以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器107以使发动机限制车辆的行驶速度。这样，使得能够及时、方便、准确、可靠地发现驾驶员是否酒驾或打瞌睡，在驾驶员酒驾或打瞌睡时能够及时灵活地控制车辆的相应工作状态，从而保证了行车的安全性及可靠性。In the embodiment of the present invention, the present invention uses the controller 105 to determine whether the driver is in a state of drunk driving or about to fall asleep according to the facial information provided by the camera 101 and the facial blood flow information provided by the thermal imaging sensor 103. During drunk driving state, then send the command of shutting down engine to engine controller 107 so that engine stops working, if judging when the chaufeur is about to drowsy state, then send limit vehicle speed signal to engine controller 107 so that engine limits the traveling speed of vehicle. In this way, it is possible to timely, conveniently, accurately and reliably find out whether the driver is drunk driving or dozing off, and when the driver is drunk driving or dozing off, the corresponding working state of the vehicle can be flexibly controlled in time, thereby ensuring the safety and reliability of driving. .
图2是本发明另一实施例提出的防酒驾和防瞌睡系统的主要架构框图。图2是在图1的基础上改进而来的。请参阅图2，防酒驾和防瞌睡系统包括：摄像头201、热成像传感器203、控制器205以及发动机控制器207。Fig. 2 is a main structural block diagram of the anti-drinking driving and anti-drowsiness system proposed by another embodiment of the present invention. Figure 2 is improved on the basis of Figure 1. Please refer to FIG. 2 , the anti-drunk driving and anti-drowsiness system includes: a camera 201 , a thermal imaging sensor 203 , a controller 205 and an engine controller 207 .
摄像头201，与控制器205电性相连，用于采集驾驶员的脸部信息，并将采集到的脸部信息提供给控制器205。The camera 201 is electrically connected to the controller 205 and is used to collect facial information of the driver and provide the collected facial information to the controller 205 .
其中，摄像头201可以为红外摄像头，其可采集到驾驶员的眼球滚动、眼睛充血、面部泛红、瞳孔放大、咬嘴唇、耸鼻子、呼吸频率、吞咽唾液、眨眼睛或面部抽搐等脸部的各种表情信息。Wherein, the camera 201 can be an infrared camera, which can collect the driver's facial motions such as rolling eyeballs, bloodshot eyes, flushed face, dilated pupils, biting lips, shrugging nose, breathing rate, swallowing saliva, blinking eyes or facial twitching, etc. Various expression information.
热成像传感器203，与控制器205电性相连，用于检测驾驶员脸部血液流动信息，并将检测到的脸部血液流动信息提供给控制器205。The thermal imaging sensor 203 is electrically connected to the controller 205 and is used to detect the blood flow information on the face of the driver, and provide the detected blood flow information on the face to the controller 205 .
其中，热成像传感器203为接触式或非接触式的高分辨率的热成像传感器，其可检测到皮肤中血液流动的细微变化情况。通常在酒驾状态，驾驶员的血液流动会比较快，在即将瞌睡状态，驾驶员的血液流动会比较慢。Wherein, the thermal imaging sensor 203 is a contact or non-contact high-resolution thermal imaging sensor, which can detect subtle changes in blood flow in the skin. Generally, in the state of drunk driving, the blood flow of the driver will be faster, and in the state of drowsiness, the blood flow of the driver will be slower.
控制器205，与摄像头201、热成像传感器203及发动机控制器207电性相连，用于根据摄像头201提供的脸部信息及热成像传感器203提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态。The controller 205 is electrically connected to the camera 201, the thermal imaging sensor 203 and the engine controller 207, and is used to judge whether the driver is in a drunk driving state according to the facial information provided by the camera 201 and the facial blood flow information provided by the thermal imaging sensor 203 , About to doze off.
其中，控制器205可以通过摄像头201提供的脸部信息，例如眼睛充血、面部泛红、呼吸加快，热成像传感器203提供的血液流动加快等信息中的一个或多个而判断驾驶员处于酒驾状态。控制器205可以通过摄像头201提供的脸部信息，例如低头过频、哈欠次数过多、呼吸变慢，热成像传感器203提供的血液流动加快等信息中的一个或多个而判断驾驶员处于即将瞌睡状态。具体地，若判断驾驶员的眼睛充血、面部泛红、单位时间内呼吸次数高于一阈值，血液流动速度高于一阈值，则可判断为驾驶员处于酒驾状态。若驾驶员低头次数大于一阈值（即低头次数过多），打哈欠次数大于一阈值（即打哈欠次数过多），单位时间内呼吸次数小于一阈值（即呼吸频率过慢），血液流动速度小于一阈值，则可判断为驾驶员处于即将瞌睡状态。Among them, the controller 205 can judge that the driver is in a drunk driving state based on one or more of the facial information provided by the camera 201, such as bloodshot eyes, flushed face, rapid breathing, and accelerated blood flow provided by the thermal imaging sensor 203. . The controller 205 can judge that the driver is in an imminent state through one or more of the facial information provided by the camera 201, such as bowing the head too frequently, yawning too many times, breathing slowly, and the blood flow provided by the thermal imaging sensor 203. Drowsy state. Specifically, if it is determined that the driver's eyes are congested, his face is flushed, the number of breaths per unit time is higher than a threshold, and the blood flow rate is higher than a threshold, it can be determined that the driver is in a state of drunk driving. If the number of times the driver bows his head is greater than a threshold (that is, the number of bows is too much), the number of yawns is greater than a threshold (that is, the number of yawns is too much), and the number of breathing per unit time is less than a threshold (that is, the breathing rate is too slow), the blood flow rate If it is less than a threshold, it can be judged that the driver is about to fall asleep.
控制器205，还用于判断若驾驶员处于酒驾状态时，再判断发动机是否处于启动状态，判断若发动机处于启动状态，则发送关闭发动机的命令给发动机控制器207以使发动机停止工作，从而使车辆减速直至停下来。判断若发动机处于未启动状态，则发送禁止发动机启动的命令给发动机控制器207以禁止发动机启动。控制器205，还用于判断若驾驶员未处于酒驾状态时，再判断发动机是否处于禁止启动状态，判断若发动机处于禁止启动状态，则发送解除禁止发动机启动的命令给发动机控制器207，以准许发动机启动。The controller 205 is also used to judge if the driver is in a state of drunk driving, then judge whether the engine is in the start state, if it is judged that the engine is in the start state, then send an order to shut down the engine to the engine controller 207 so that the engine stops working, so that The vehicle slows down until it comes to a stop. If it is judged that the engine is in a non-start state, then a command for prohibiting engine start is sent to the engine controller 207 to prohibit engine start. The controller 205 is also used to judge if the driver is not in the state of drunk driving, then judge whether the engine is in the state of prohibiting starting, if it is judged that the engine is in the state of prohibiting starting, then send an order to remove the prohibition of starting the engine to the engine controller 207 to allow The engine starts.
控制器205，还用于判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器207以使发动机限制车辆的行驶速度。控制器205，还用于判断若驾驶员未处于即将瞌睡状态时，则判断发动机是否处于限制车速状态，若是，则发送解除限制车速信号给发动机控制器207，以使发动机解除限制车辆的行驶速度。通常，控制器205判断驾驶员是否处于即将瞌睡状态是发动机处于启动状态的条件下进行的。而判断驾驶员是否处于酒驾状态是在车门打开或钥匙插入时进行判断，即在车辆静止或车辆启动时均进行判断。具体地，控制器205判断车门是否打开或钥匙是否插入，若车门打开或钥匙插入，则进行酒驾判断。若车门未打开且钥匙未插入则系统处于休眠状态。The controller 205 is also used to determine that if the driver is about to fall asleep, then send a speed limit signal to the engine controller 207 to make the engine limit the speed of the vehicle. The controller 205 is also used to judge if the driver is not in the state of being about to doze off, then judge whether the engine is in the speed limit state, if so, send a signal to remove the speed limit to the engine controller 207, so that the engine is released to limit the speed of the vehicle . Usually, the controller 205 judges whether the driver is about to fall asleep under the condition that the engine is started. And judging whether the driver is in the drunk driving state is to judge when the car door is opened or the key is inserted, that is, when the vehicle is stationary or the vehicle is started, it is judged. Specifically, the controller 205 judges whether the car door is opened or whether the key is inserted, and if the car door is opened or the key is inserted, then a drunk driving judgment is performed. If the door is not opened and the key is not inserted, the system is in sleep state.
控制器205通过发动机控制器207而获得发动机的状态，例如处于启动状态、处于未启动状态、处于限制车速状态、或处于禁止启动状态等。The controller 205 obtains the state of the engine through the engine controller 207 , such as being in a starting state, being in a non-starting state, being in a state of limiting vehicle speed, or being in a state of prohibiting starting.
发动机控制器207，用于提供发动机的状态给控制器205及控制发动机的工作，还用于接收控制器205发送的关闭发动机的命令以使发动机停止工作，接收控制器205发送的禁止发动机启动的命令以禁止发动机启动，接收控制器205发送的解除禁止发动机启动的命令，以准许发动机启动。接收控制器205发送的限制车速信号以使发动机限制车辆的行驶速度。接收控制器205发送的解除限制车速信号以使发动机解除限制车辆的行驶速度。控制器205可以将上述信号及命令通过CAN总线217发送给发动机控制器205或发送到CAN总线217上共享。The engine controller 207 is used to provide the state of the engine to the controller 205 and to control the operation of the engine, and is also used to receive the command to shut down the engine sent by the controller 205 to stop the engine, and receive the command to prohibit the engine from starting from the controller 205. command to prohibit the engine from starting, and receive a command from the controller 205 to release the prohibition from engine starting to allow the engine to start. The vehicle speed limit signal sent by the controller 205 is received so that the engine limits the driving speed of the vehicle. Receive the speed limit release signal sent by the controller 205 to make the engine release the speed limit of the vehicle. The controller 205 can send the above-mentioned signals and commands to the engine controller 205 through the CAN bus 217 or send them to the CAN bus 217 for sharing.
此外，防酒驾和防瞌睡系统还可以包括信号处理器2051、气体检测器209、显示屏213、以及多媒体控制器211。In addition, the anti-drunk driving and anti-drowsiness system may further include a signal processor 2051 , a gas detector 209 , a display screen 213 , and a multimedia controller 211 .
信号处理器2051，与控制器205、摄像头201及热成像传感器203电性相连，用于将采集的脸部信息及脸部血液流动信息对应的模拟信号转换成数字信号，并将数字信号提供给控制器205。The signal processor 2051 is electrically connected with the controller 205, the camera 201 and the thermal imaging sensor 203, and is used to convert the analog signals corresponding to the collected facial information and facial blood flow information into digital signals, and provide the digital signals to controller 205 .
气体检测器209，用于检测驾驶员附近的酒精含量，并将检测的酒精含量提供给控制器205。The gas detector 209 is used to detect the alcohol content near the driver, and provide the detected alcohol content to the controller 205 .
若控制器205根据摄像头201提供的脸部信息及热成像传感器203提供的脸部血液流动信息判断驾驶员处于酒驾状态，为了保证判断的正确率，控制器205，还用于根据气体检测器209提供的酒精含量，若判断酒精含量大于一阈值，则判断为驾驶员处于酒驾状态。If the controller 205 judges that the driver is in a drunk driving state according to the facial information provided by the camera 201 and the facial blood flow information provided by the thermal imaging sensor 203, in order to ensure the accuracy of the judgment, the controller 205 is also used to Provided alcohol content, if it is determined that the alcohol content is greater than a threshold, it is determined that the driver is in a state of drunk driving.
控制器205，还用于若驾驶员处于酒驾状态或即将瞌睡状态，则发送交互信息给显示屏213及发送提醒信号给多媒体控制器211。若判断驾驶员不处于酒驾状态或即将瞌睡状态，则不发送交互信息给显示屏213及不发送提醒信号给多媒体控制器211。The controller 205 is also configured to send interactive information to the display screen 213 and send a reminder signal to the multimedia controller 211 if the driver is in a drunk driving state or is about to fall asleep. If it is judged that the driver is not in the state of drunk driving or about to fall asleep, no interactive information is sent to the display screen 213 and no reminder signal is sent to the multimedia controller 211 .
显示屏213，用于接收并显示控制器205发送的交互信息，这样可以使驾驶员兴奋，防止驾驶员瞌睡。交互信息可以为让驾驶员保持清醒的各种信息。The display screen 213 is used to receive and display the interactive information sent by the controller 205, which can make the driver excited and prevent the driver from drowsiness. The interactive information may be various information to keep the driver awake.
多媒体控制器211，用于接收控制器205发送的提醒信号，根据提醒信号驱动多媒体设备215（例如音响）发出提示音以提醒驾驶员不要酒后开车或瞌睡。提示音可以为与驾驶员交互的对话，让驾驶员做出回应，以使驾驶员保持清醒，阻止驾驶员打瞌睡或者自行停车防止酒驾。The multimedia controller 211 is configured to receive the reminder signal sent by the controller 205, and drive the multimedia device 215 (such as a stereo) to emit a reminder sound according to the reminder signal to remind the driver not to drink and drive or fall asleep. The prompt tone can be an interactive dialogue with the driver, allowing the driver to respond to keep the driver awake, prevent the driver from dozing off or stop the car by itself to prevent drunk driving.
在本发明的实施例中，本发明通过控制器205根据摄像头201提供的脸部信息及热成像传感器203提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态，判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器207以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器207以使发动机限制车辆的行驶速度。还通过气体检测器209检测驾驶员附近的酒精含量而对酒驾状态进一步确认。还通过判断若驾驶员处于酒驾状态时，而发动机处于未启动状态，则发送禁止发动机启动的命令给发动机控制器207以禁止发动机启动。判断若驾驶员处于未酒驾状态，而发动机处于禁止启动状态，则发送解除禁止发动机启动的命令给发动机控制器207，以准许发动机启动。判断若驾驶员未处于即将瞌睡状态时，而发动机处于限制车速状态，则发送解除限制车速信号给发动机控制器207，以使发动机解除限制车辆的行驶速度。并在驾驶员处于酒驾状态或即将瞌睡状态，则发送交互信息给显示屏进行显示，发送提醒信号给多媒体控制器211以驱动多媒体设备215（例如音响）发出提示音以提醒驾驶员不要酒后开车或瞌睡。这样，使得能够及时、方便、准确、可靠地发现驾驶员是否酒驾或打瞌睡，在驾驶员酒驾或打瞌睡时能够及时灵活地控制车辆的相应工作状态，并及时提醒驾驶员，从而保证了行车的安全性及可靠性。In the embodiment of the present invention, the present invention uses the controller 205 to determine whether the driver is in a state of drunk driving or about to fall asleep according to the facial information provided by the camera 201 and the facial blood flow information provided by the thermal imaging sensor 203. When being in drunken driving state, then send the order of shutting down engine to engine controller 207 so that engine stops working, if judging when the chaufeur is about to drowsy state, then send limit vehicle speed signal to engine controller 207 so that engine limits the running speed of vehicle . Also detect the alcohol content near the driver by the gas detector 209 to further confirm the drunk driving state. Also by judging that if the driver is in a state of drunk driving and the engine is not started, an order for prohibiting engine start is sent to the engine controller 207 to prohibit engine start. Judging that if the driver is in the state of not drinking and driving, and the engine is in the state of prohibiting starting, then send an order to remove the prohibition of engine starting to the engine controller 207 to allow the engine to start. If it is judged that the driver is not in the state of dozing off soon, but the engine is in the speed limit state, then the speed limit signal is sent to the engine controller 207 to make the engine release the speed limit of the vehicle. And when the driver is in a drunk driving state or is about to fall asleep, then send interactive information to the display screen for display, and send a reminder signal to the multimedia controller 211 to drive the multimedia device 215 (such as a sound) to send a prompt to remind the driver not to drink and drive or doze off. In this way, it is possible to timely, conveniently, accurately and reliably find out whether the driver is drunk driving or dozing off, and when the driver is drunk driving or dozing off, the corresponding working state of the vehicle can be flexibly controlled in a timely manner, and the driver can be reminded in time, thereby ensuring driving safety. safety and reliability.
图3是本发明实施例提出的防酒驾和防瞌睡方法的步骤流程图。请一并参阅图1及图3，本发明实施例的防酒驾和防瞌睡方法可包括以下步骤S301-S305：Fig. 3 is a flow chart of the steps of the anti-drunk driving and anti-drowsiness method proposed by the embodiment of the present invention. Please refer to Fig. 1 and Fig. 3 together, the anti-drunk driving and anti-drowsiness method of the embodiment of the present invention may include the following steps S301-S305:
步骤S301：摄像头101提供驾驶员的脸部信息，热成像传感器103提供驾驶员脸部血液流动信息。Step S301: The camera 101 provides the driver's face information, and the thermal imaging sensor 103 provides the driver's facial blood flow information.
步骤S303：控制器105根据摄像头101提供的脸部信息及热成像传感器103提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态。Step S303: The controller 105 judges whether the driver is in a state of drunk driving or about to fall asleep according to the facial information provided by the camera 101 and the facial blood flow information provided by the thermal imaging sensor 103 .
步骤S305：若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器107以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器107以使发动机限制车辆的行驶速度。Step S305: If the driver is in a state of drunk driving, then send an order to shut down the engine to the engine controller 107 so that the engine stops working; The engine limits the vehicle's speed.
在本发明实施例中，本发明通过控制器105根据摄像头101提供的脸部信息及热成像传感器103提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态，判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器107以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器107以使发动机限制车辆的行驶速度。这样，使得能够及时、方便、准确、可靠地发现驾驶员是否酒驾或打瞌睡，在驾驶员酒驾或打瞌睡时能够及时灵活地控制车辆的相应工作状态，从而保证了行车的安全性及可靠性。In the embodiment of the present invention, the present invention uses the controller 105 to determine whether the driver is in a state of drunk driving or about to fall asleep according to the facial information provided by the camera 101 and the facial blood flow information provided by the thermal imaging sensor 103. During drunk driving state, then send the command of shutting down engine to engine controller 107 so that engine stops working, if judging when the chaufeur is about to drowsy state, then send limit vehicle speed signal to engine controller 107 so that engine limits the traveling speed of vehicle. In this way, it is possible to timely, conveniently, accurately and reliably find out whether the driver is drunk driving or dozing off, and when the driver is drunk driving or dozing off, the corresponding working state of the vehicle can be flexibly controlled in time, thereby ensuring the safety and reliability of driving. .
图4是本发明实施例提供的防酒驾和防瞌睡方法的步骤流程图。图4是在图3的基础上改进而来的。请一并参阅图2、及图4，本发明实施例的防酒驾和防瞌睡方法可包括以下步骤S400-S410：Fig. 4 is a flow chart of the steps of the anti-drunk driving and anti-drowsiness method provided by the embodiment of the present invention. Figure 4 is improved on the basis of Figure 3. Please refer to Fig. 2 and Fig. 4 together, the anti-drunk driving and anti-drowsiness method of the embodiment of the present invention may include the following steps S400-S410:
步骤S400：控制器205判断车门是否打开或钥匙是否插入，若车门打开或钥匙插入，则进行步骤S403，若车门未打开且钥匙未插入，则进行步骤S401。Step S400: The controller 205 judges whether the door is opened or the key is inserted. If the door is opened or the key is inserted, proceed to step S403. If the door is not opened and the key is not inserted, proceed to step S401.
步骤S401：系统处于休眠状态。Step S401: the system is in a dormant state.
步骤S403：摄像头201提供驾驶员的脸部信息，热成像传感器203提供驾驶员脸部血液流动信息。Step S403: The camera 201 provides the driver's face information, and the thermal imaging sensor 203 provides the driver's facial blood flow information.
步骤S405：信号处理器2051将采集的脸部信息及脸部血液流动信息对应的模拟信号转换成数字信号，并将数字信号提供给控制器205。Step S405 : The signal processor 2051 converts the collected analog signals corresponding to the facial information and facial blood flow information into digital signals, and provides the digital signals to the controller 205 .
步骤S405后具体还可包括步骤：After step S405, specific steps may also be included:
步骤S407：控制器205根据摄像头201提供的脸部信息对应的数字信号及热成像传感器203提供的脸部血液流动信息对应的数字信号判断驾驶员是否处于酒驾状态，若是，则进行步骤S409，若否，则进行步骤S417。Step S407: The controller 205 determines whether the driver is in a state of drunk driving according to the digital signal corresponding to the facial information provided by the camera 201 and the digital signal corresponding to the facial blood flow information provided by the thermal imaging sensor 203, and if so, proceed to step S409, if If not, go to step S417.
步骤S407中具体还可包括步骤：控制器205判断若驾驶员的眼睛充血、面部泛红、单位时间内呼吸次数高于第一阈值，血液流动速度高于第二阈值，则判断为驾驶员处于酒驾状态。Step S407 may specifically include a step: the controller 205 judges that if the driver's eyes are congested, the face is red, the number of respirations per unit time is higher than the first threshold, and the blood flow rate is higher than the second threshold, then it is determined that the driver is in the drunk driving status.
步骤S409：气体检测器209将检测的酒精含量提供给控制器205，控制器205根据气体检测器209提供的酒精含量进一步判断驾驶员是否处于酒驾状态，若是，则进行步骤S411，若否，则进行步骤S410。Step S409: The gas detector 209 provides the detected alcohol content to the controller 205, and the controller 205 further judges whether the driver is in a drunk driving state according to the alcohol content provided by the gas detector 209, if so, proceed to step S411, if not, then Go to step S410.
本步骤中，控制器205判断酒精含量是否大于一阈值，若是，则判断为驾驶员处于酒驾状态。In this step, the controller 205 determines whether the alcohol content is greater than a threshold, and if so, determines that the driver is in a state of drunk driving.
步骤S410：控制器205判断发动机是否处于禁止启动状态，若是，则进行步骤S412，若否，则进行步骤S417。Step S410: The controller 205 judges whether the engine is in a start-prohibited state, if yes, proceed to step S412, if not, proceed to step S417.
步骤S412：控制器205发送解除禁止发动机启动的命令给发动机控制器207，以准许发动机启动。Step S412: The controller 205 sends a command to release the prohibition of engine start to the engine controller 207 to allow the engine to start.
步骤S411：控制器205判断发动机是否处于启动状态，若是，则进行步骤S413，若否，则进行步骤S415。Step S411: The controller 205 judges whether the engine is in the starting state, if yes, proceed to step S413, if not, proceed to step S415.
步骤S413：控制器205发送关闭发动机的命令给发动机控制器207以使发动机停止工作，从而使车辆减速直至停下来。控制器205还可发送交互信息给显示屏213进行显示，发送提醒信号给多媒体控制器211以驱动多媒体设备215（例如音响）发出提示音以提醒驾驶员不要酒后开车。Step S413: The controller 205 sends a command to shut down the engine to the engine controller 207 to stop the engine, so that the vehicle decelerates until it stops. The controller 205 can also send interactive information to the display screen 213 for display, and send a reminder signal to the multimedia controller 211 to drive the multimedia device 215 (such as a stereo) to sound a reminder to remind the driver not to drink and drive.
步骤S415：控制器205发送禁止发动机启动的命令给发动机控制器207以禁止发动机启动。控制器205还可发送交互信息给显示屏213进行显示，发送提醒信号给多媒体控制器211以驱动多媒体设备215（例如音响）发出提示音以提醒驾驶员不要酒后开车。Step S415: The controller 205 sends an engine start prohibition command to the engine controller 207 to prohibit engine start. The controller 205 can also send interactive information to the display screen 213 for display, and send a reminder signal to the multimedia controller 211 to drive the multimedia device 215 (such as a stereo) to sound a reminder to remind the driver not to drink and drive.
步骤S417：控制器205根据摄像头201提供的脸部信息对应的数字信号及热成像传感器203提供的脸部血液流动信息对应的数字信号判断驾驶员是否处于即将瞌睡状态，若是，则进行步骤S419，若否，则进行步骤S421。Step S417: The controller 205 determines whether the driver is about to fall asleep according to the digital signal corresponding to the facial information provided by the camera 201 and the digital signal corresponding to the facial blood flow information provided by the thermal imaging sensor 203, and if so, proceed to step S419, If not, go to step S421.
步骤S407中具体还可包括步骤：控制器205判断若驾驶员低头次数大于第三阈值，打哈欠次数大于第四阈值，单位时间内呼吸次数小于第五阈值，血液流动速度小于第六阈值，则判断为驾驶员处于即将瞌睡状态。Step S407 may specifically include a step: the controller 205 judges that if the number of times the driver bows his head is greater than the third threshold, the number of yawns is greater than the fourth threshold, the number of respirations per unit time is less than the fifth threshold, and the blood flow rate is less than the sixth threshold, then It is determined that the driver is about to fall asleep.
步骤S419：控制器205发送限制车速信号给发动机控制器207以使发动机限制车辆的行驶速度。控制器205还可发送交互信息给显示屏213进行显示，发送提醒信号给多媒体控制器211以驱动多媒体设备215（例如音响）发出提示音以提醒驾驶员不要打瞌睡。Step S419: The controller 205 sends a speed limit signal to the engine controller 207 to make the engine limit the vehicle speed. The controller 205 can also send interactive information to the display screen 213 for display, and send a reminder signal to the multimedia controller 211 to drive the multimedia device 215 (such as an audio system) to emit a prompt sound to remind the driver not to fall asleep.
步骤S421：控制器205判断发动机是否处于限制车速状态，若是，则进行步骤S423，若否，则结束。Step S421: The controller 205 judges whether the engine is in the speed limit state, if yes, proceed to step S423, if not, end.
步骤S423：控制器205发送解除限制车速信号给发动机控制器207，以使发动机解除限制车辆的行驶速度。Step S423: The controller 205 sends a signal of releasing the speed limit to the engine controller 207, so that the engine releases the speed limit of the vehicle.
在本发明的实施例中，本发明通过控制器205根据摄像头201提供的脸部信息及热成像传感器203提供的脸部血液流动信息判断驾驶员是否处于酒驾状态、即将瞌睡状态，判断若驾驶员处于酒驾状态时，则发送关闭发动机的命令给发动机控制器207以使发动机停止工作，判断若驾驶员处于即将瞌睡状态时，则发送限制车速信号给发动机控制器207以使发动机限制车辆的行驶速度。还通过气体检测器209检测驾驶员附近的酒精含量而对酒驾状态进一步确认。还通过判断若驾驶员处于酒驾状态时，而发动机处于未启动状态，则发送禁止发动机启动的命令给发动机控制器207以禁止发动机启动。判断若驾驶员处于未酒驾状态，而发动机处于禁止启动状态，则发送解除禁止发动机启动的命令给发动机控制器207，以准许发动机启动。判断若驾驶员未处于即将瞌睡状态时，而发动机处于限制车速状态，则发送解除限制车速信号给发动机控制器207，以使发动机解除限制车辆的行驶速度。并在驾驶员处于酒驾状态或即将瞌睡状态，则发送交互信息给显示屏进行显示，发送提醒信号给多媒体控制器211以驱动多媒体设备215（例如音响）发出提示音以提醒驾驶员不要酒后开车或瞌睡。这样，使得能够及时、方便、准确、可靠地发现驾驶员是否酒驾或打瞌睡，在驾驶员酒驾或打瞌睡时能够及时灵活地控制车辆的相应工作状态，并及时提醒驾驶员，从而保证了行车的安全性及可靠性。In the embodiment of the present invention, the present invention uses the controller 205 to determine whether the driver is in a state of drunk driving or about to fall asleep according to the facial information provided by the camera 201 and the facial blood flow information provided by the thermal imaging sensor 203. When being in drunken driving state, then send the order of shutting down engine to engine controller 207 so that engine stops working, if judging when the chaufeur is about to drowsy state, then send limit vehicle speed signal to engine controller 207 so that engine limits the running speed of vehicle . Also detect the alcohol content near the driver by the gas detector 209 to further confirm the drunk driving state. Also by judging that if the driver is in a state of drunk driving and the engine is not started, an order for prohibiting engine start is sent to the engine controller 207 to prohibit engine start. Judging that if the driver is in the state of not drinking and driving, and the engine is in the state of prohibiting starting, then send an order to remove the prohibition of engine starting to the engine controller 207 to allow the engine to start. If it is judged that the driver is not in the state of dozing off soon, but the engine is in the speed limit state, then the speed limit signal is sent to the engine controller 207 to make the engine release the speed limit of the vehicle. And when the driver is in a drunk driving state or is about to fall asleep, then send interactive information to the display screen for display, and send a reminder signal to the multimedia controller 211 to drive the multimedia device 215 (such as a sound) to send a prompt to remind the driver not to drink and drive or doze off. In this way, it is possible to timely, conveniently, accurately and reliably find out whether the driver is drunk driving or dozing off, and when the driver is drunk driving or dozing off, the corresponding working state of the vehicle can be flexibly controlled in a timely manner, and the driver can be reminded in time, thereby ensuring driving safety. safety and reliability.
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专业的技术人员，在不脱离本发明技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN201310344407.1AActiveCN103434400B (en) | 2013-08-09 | 2013-08-09 | Drunk-driving prevention and sleepiness prevention system and drunk-driving prevention and Drowse preventing method |
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