CN111145497A - Portable driver fatigue detection equipment - Google Patents
Portable driver fatigue detection equipment Download PDFInfo
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- CN111145497A CN111145497A CN202010010820.4A CN202010010820A CN111145497A CN 111145497 A CN111145497 A CN 111145497A CN 202010010820 A CN202010010820 A CN 202010010820A CN 111145497 A CN111145497 A CN 111145497A
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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
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Abstract
The invention discloses portable fatigue driving detection equipment which comprises a camera, a microprocessor, a storage module, a buzzer alarm, a Bluetooth module, a GPS (global positioning system) positioning module, a touch screen, a power supply module, an integrated circuit and a shell, wherein the camera is connected with the microprocessor through the storage module; the device takes a fatigue driving detection system as a core, detects fatigue driving by detecting the opening and closing of eyes of a driver during driving, and can detect the fatigue driving without contacting the driver; the portable fatigue driving detection equipment comprises three kinds of fatigue detection, in addition to the conventional fatigue driving detection, the detection of the drowsy phenomenon in the severe fatigue driving state and the detection of the vague phenomenon in the 'highway hypnosis' state are also added, and if the fatigue driving of a driver is detected, a warning is sent out; the invention has the characteristics of reliability and high precision.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to portable fatigue driving detection equipment.
Background
With the improvement of living standard, more and more families own one or two or even more automobiles. As automobile reserves increase, traffic safety issues become more acute. According to related researches, fatigue driving is one of the main causes of traffic accidents, the proportion of the fatigue driving reaches 48%, and the direct economic loss reaches hundreds of thousands of dollars. The research related to fatigue driving detection can be developed to effectively reduce the occurrence of traffic accidents.
Fatigue driving detection can be divided into two categories: one is direct detection based on driver physiological information, and the other is indirect detection based on driver physical information; among them, indirect detection can be classified into three types: head pose detection, eye state detection, and driving behavior detection.
In the prior art, the two fatigue driving detection methods of the Chinese patent CN103606245A and the Chinese patent CN205405809U need to directly contact with a driver, and the problem of potential safety hazard influencing the driving of the driver exists.
Disclosure of Invention
The present invention has been made to overcome the drawbacks and disadvantages of the prior art, and an object of the present invention is to provide a portable fatigue driving detection apparatus that detects fatigue driving based on detection of the opening and closing of the eyes of a driver while driving, and that has advantages of immediacy, non-contact, consistency, and the like.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a portable driver fatigue check out test set, includes the casing, and sets up camera, microprocessor, storage module, buzzer siren, bluetooth module, GPS orientation module, touch display screen, power supply system and integrated circuit in the casing, wherein:
the camera is used for acquiring an image of the head of a driver;
a fatigue driving detection system is arranged in the microprocessor, the collected images are preprocessed, the face of the driver and the eyes of the driver are identified, and whether the driver is in a fatigue state is judged according to the opening and closing sizes of the eyes of the driver;
the storage module stores images shot by the camera, and the microprocessor reads the images from the storage module for processing;
the buzzer alarm sends out alarm sound after receiving the signal of the microprocessor;
the Bluetooth module is used for being connected with a mobile phone and vehicle-mounted equipment;
the GPS positioning module can receive satellite information, and can send positioning information to family members or a rescue center when an accident occurs;
the touch display screen can be used for a driver to select a menu and can also be used as a display screen to check whether the camera is aligned with the touch display screen;
the power supply system comprises an integrated circuit, the integrated circuit bears a camera, a microprocessor, a buzzer alarm, a Bluetooth module and a GPS positioning module, and is connected with all the components into a whole through a printed circuit; the power supply system supplies power to the camera, the microprocessor, the buzzer alarm, the Bluetooth module and the GPS positioning module through the integrated circuit;
the fatigue driving detection system can detect three fatigue driving states, including a normal fatigue driving state detection program, a severe fatigue driving doze state detection program and an expressway hypnosis vague state detection program;
wherein the normal fatigue driving state detection program is capable of detecting the opening and closing of the eyes of the driver; by calculating the PERCLOS value, when the PERCLOS value reaches the set threshold value, the driver is judged to be in fatigue driving, a common alarm sound is sent out, the alarm sound is automatically turned off after the driver goes wrong, and if the driver continuously sends out an alarm, the driver needs to stop to turn off the alarm sound;
according to the detection program of the drowsy state of the severe fatigue driving, the drowsy state can appear after the eyes of the driver are closed for a period of time; after the eyes of the driver are closed, the equipment can detect whether the closing of the eyes of the driver exceeds the set time or not, when the closing of the eyes of the driver exceeds the set time, the equipment can give out a sharp alarm sound, and the driver needs to stop and turn off the alarm sound; if the equipment does not detect that the driver is in a heavy fatigue driving doze state, entering a normal fatigue driving state detection program;
in the detection program of the vague state of the 'highway hypnosis', the driver can have a vague phenomenon in the driving process, the eyes become dull, but the eyes are still open, and the eyes can be opened without detection; after the eyes of the driver are opened, the equipment can detect whether the eyes of the driver are opened for more than set time, when the eyes of the driver are opened for more than set time, the equipment can give out a sharp alarm sound, and then the alarm sound is automatically turned off; if the device does not detect that the driver is in the "highway hypnosis" state of mind, the normal tiredness driving state detection procedure is entered.
Preferably, the camera comprises an infrared light supplement function.
Preferably, the power supply system comprises a rechargeable lithium battery, which can be powered and charged with a USB connection.
Preferably, the shell is made of plastic, and the back part of the shell is provided with a clamp which can be connected with the inside rear-view mirror of the vehicle.
The working principle of the invention is as follows:
and after the vehicle is started, starting the fatigue driving detection equipment. The driver selects to start fatigue driving detection on the touch display screen, places the equipment at a position where the front face of the driver can be shot, and observes whether the front face of the driver can be normally displayed on the touch display screen. During detection, the camera transmits a shot image into the storage module, the microprocessor reads the image from the storage module, a series of preprocessing is carried out on the image, the face and the eyes are identified and positioned through the trained AdaBoost classifier, whether a driver is in a fatigue driving state or not is judged through a PERCLOS algorithm, the microprocessor transmits an obtained result to the buzzer alarm, the buzzer alarm does not give out an alarm sound, gives out a common alarm sound and gives out a sharp alarm sound according to information, if a serious accident occurs, the microprocessor reads a reserved contact way in the storage module, reads a GPS positioning system and gives out GPS positioning information to contacts and a rescue center. When the driver stops the vehicle for rest, the equipment can be closed.
Compared with the prior art, the invention has the following beneficial effects:
the invention can detect fatigue driving by detecting the opening and closing of eyes of a driver when driving, thus detecting the fatigue driving without contacting the driver; besides conventional fatigue driving detection, the method also increases the detection of the drowsy phenomenon of the severe driving fatigue state and the detection of the vague phenomenon of the highway hypnosis state, so that the designed fatigue driving detection equipment is more reliable and more accurate.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a flow chart of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1-2, a portable fatigue driving detection device comprises a housing made of plastic, a clamp at the back and capable of being connected with a vehicle interior rearview mirror; and set up camera, microprocessor, storage module, buzzer siren, bluetooth module, GPS orientation module, touch display screen, power supply system and integrated circuit in the casing, wherein: the camera is used for acquiring an image of the head of a driver; the camera comprises an infrared light supplementing function. A fatigue driving detection system is arranged in the microprocessor, the collected images are preprocessed, the face of the driver and the eyes of the driver are identified, and whether the driver is in a fatigue state is judged according to the opening and closing sizes of the eyes of the driver; the storage module stores images shot by the camera, and the microprocessor reads the images from the storage module for processing; the buzzer alarm sends out alarm sound after receiving the signal of the microprocessor; the Bluetooth module is used for being connected with a mobile phone and vehicle-mounted equipment; the GPS positioning module can receive satellite information, and can send positioning information to family members or a rescue center when an accident occurs; the touch display screen can be used for a driver to select a menu and can also be used as a display screen to check whether the camera is aligned with the touch display screen; the power supply system comprises an integrated circuit, the integrated circuit bears a camera, a microprocessor, a buzzer alarm, a Bluetooth module and a GPS positioning module, and is connected with all the components into a whole through a printed circuit; the power supply system supplies power to the camera, the microprocessor, the buzzer alarm, the Bluetooth module and the GPS positioning module through the integrated circuit; the power supply system comprises a rechargeable lithium battery which can be connected with a USB for power supply and charging.
The fatigue driving detection system can detect three fatigue driving states, including a normal fatigue driving state detection program, a severe fatigue driving doze state detection program and an expressway hypnosis vague state detection program; (1) a normal fatigue driving state detection program capable of detecting opening and closing of the eyes of the driver; by calculating the PERCLOS value, when the PERCLOS value reaches the set threshold value, the driver is judged to be in fatigue driving, a common alarm sound is sent out, the alarm sound is automatically turned off after the driver goes wrong, and if the driver continuously sends out an alarm, the driver needs to stop to turn off the alarm sound; (2) the method comprises the steps of detecting the drowsy state of severe fatigue driving, wherein the drowsy state can appear after the eyes of a driver are closed for a period of time; after the eyes of the driver are closed, the equipment can detect whether the closing of the eyes of the driver exceeds the set time or not, when the closing of the eyes of the driver exceeds the set time, the equipment can give out a sharp alarm sound, and the driver needs to stop and turn off the alarm sound; if the equipment does not detect that the driver is in a heavy fatigue driving doze state, entering a normal fatigue driving state detection program; (3) the method comprises the following steps of (1) detecting the vague state of 'highway hypnosis', wherein the vague phenomenon can occur in the driving process of a driver, the eyes become dull, but the eyes are still open, and the eyes can be opened without detection; after the eyes of the driver are opened, the equipment can detect whether the eyes of the driver are opened for more than set time, when the eyes of the driver are opened for more than set time, the equipment can give out a sharp alarm sound, and then the alarm sound is automatically turned off; if the device does not detect that the driver is in the "highway hypnosis" state of mind, the normal tiredness driving state detection procedure is entered.
Specifically, as shown in fig. 1, the invention is provided with a camera and a touch display screen, wherein the touch display screen can display a menu and an image shot by the camera, and the camera has high pixel and an infrared light supplement function and automatically adjusts an aperture according to ambient illumination. The surface of the equipment is protected by toughened glass, and the shell is made of high-strength carbon fiber. The shell back has the spring, and the telescopic anchor clamps can be installed anywhere according to driver's needs, and the prerequisite is that the camera can aim at driver face front. The device is connected and charged with a vehicle-mounted power supply or other devices through a type-c interface on the side face. The device comprises a camera, a microprocessor, a storage module, a buzzer alarm, a Bluetooth module, a GPS positioning module, a touch display screen, a power supply system and other electronic elements which are connected and powered through an integrated circuit.
The working process of the invention is as follows: and after the vehicle is started, starting the fatigue driving detection equipment. The driver selects to start fatigue driving detection on the touch display screen, places the equipment at a position where the front face of the driver can be shot, and observes whether the front face of the driver can be normally displayed on the touch display screen. During detection, the camera transmits a shot image into the storage module, the microprocessor reads the image from the storage module, a series of preprocessing is carried out on the image, the face and the eyes are identified and positioned through the trained AdaBoost classifier, whether a driver is in a fatigue driving state or not is judged through a PERCLOS algorithm, the microprocessor transmits an obtained result to the buzzer alarm, the buzzer alarm does not give out an alarm sound, gives out a common alarm sound and gives out a sharp alarm sound according to information, if a serious accident occurs, the microprocessor reads a reserved contact way in the storage module, reads a GPS positioning system and gives out GPS positioning information to contacts and a rescue center. When the driver stops the vehicle for rest, the equipment can be closed.
Fig. 2 shows a flow chart for determining the fatigue state of a portable fatigue driving detection device according to the present invention. The program carries out face and eye recognition and positioning through preprocessing the image and a trained AdaBoost classifier, and judges whether the driver is in a fatigue driving state through a PERCLOS algorithm. Wherein after the eyes of the driver are closed and reach the set threshold value, a common alarm sound can be sent to remind the driver to take a rest, the alarm can be automatically turned off after the rest, and if the alarm is continuously given, the driver needs to stop and manually turn off the equipment. Besides conventional fatigue driving detection, two types of fatigue driving detection are added, and detection of a severe fatigue driving drowsy state and detection of 'highway hypnosis' vague state are increased. The program will first detect a state of heavy driver drowsiness and a state of "highway hypnosis" nervousness. After the eyes of the driver are closed, the program can detect whether the closing of the eyes of the driver exceeds the set time or not, when the closing of the eyes of the driver exceeds the set time, the equipment can give out a sharp alarm sound, and the driver needs to stop and turn off the alarm sound. If the routine does not detect that the driver is in a state of being heavily tired to drive drowsy, the routine proceeds to a normal fatigue driving detection routine. After the eyes of the driver are opened, the program firstly detects whether the eyes of the driver are opened for more than a set time, when the eyes of the driver are opened for more than the set time, the device gives out a sharp alarm sound, and then the alarm sound is automatically turned off. If the routine does not detect that the driver is in the "highway hypnosis" vagal state detection, the routine will enter a normal driver fatigue detection routine.
The invention can detect fatigue driving by detecting the opening and closing of eyes of a driver when driving, thus detecting the fatigue driving without contacting the driver; besides conventional fatigue driving detection, the method also increases the detection of the drowsy phenomenon of the severe driving fatigue state and the detection of the vague phenomenon of the highway hypnosis state, so that the designed fatigue driving detection equipment is more reliable and more accurate.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (4)
1. The utility model provides a portable driver fatigue check out test set, its characterized in that, includes the casing, and sets up camera, microprocessor, storage module, buzzer siren, bluetooth module, GPS orientation module, touch display screen, power supply system and integrated circuit in the casing, wherein:
the camera is used for acquiring an image of the head of a driver;
a fatigue driving detection system is arranged in the microprocessor, the collected images are preprocessed, the face of the driver and the eyes of the driver are identified, and whether the driver is in a fatigue state is judged according to the opening and closing sizes of the eyes of the driver;
the storage module stores images shot by the camera, and the microprocessor reads the images from the storage module for processing;
the buzzer alarm sends out alarm sound after receiving the signal of the microprocessor;
the Bluetooth module is used for being connected with a mobile phone and vehicle-mounted equipment;
the GPS positioning module can receive satellite information, and can send positioning information to family members or a rescue center when an accident occurs;
the touch display screen can be used for a driver to select a menu and can also be used as a display screen to check whether the camera is aligned with the touch display screen;
the power supply system comprises an integrated circuit, the integrated circuit bears a camera, a microprocessor, a buzzer alarm, a Bluetooth module and a GPS positioning module, and is connected with all the components into a whole through a printed circuit; the power supply system supplies power to the camera, the microprocessor, the buzzer alarm, the Bluetooth module and the GPS positioning module through the integrated circuit;
the fatigue driving detection system can detect three fatigue driving states, including a normal fatigue driving state detection program, a severe fatigue driving doze state detection program and an expressway hypnosis vague state detection program;
wherein the normal fatigue driving state detection program is capable of detecting the opening and closing of the eyes of the driver; by calculating the PERCLOS value, when the PERCLOS value reaches the set threshold value, the driver is judged to be in fatigue driving, a common alarm sound is sent out, the alarm sound is automatically turned off after the driver goes wrong, and if the driver continuously sends out an alarm, the driver needs to stop to turn off the alarm sound;
according to the detection program of the drowsy state of the severe fatigue driving, the drowsy state can appear after the eyes of the driver are closed for a period of time; after the eyes of the driver are closed, the equipment can detect whether the closing of the eyes of the driver exceeds the set time or not, when the closing of the eyes of the driver exceeds the set time, the equipment can give out a sharp alarm sound, and the driver needs to stop and turn off the alarm sound; if the equipment does not detect that the driver is in a heavy fatigue driving doze state, entering a normal fatigue driving state detection program;
in the detection program of the vague state of the 'highway hypnosis', the driver can have a vague phenomenon in the driving process, the eyes become dull, but the eyes are still open, and the eyes can be opened without detection; after the eyes of the driver are opened, the equipment can detect whether the eyes of the driver are opened for more than set time, when the eyes of the driver are opened for more than set time, the equipment can give out a sharp alarm sound, and then the alarm sound is automatically turned off; if the device does not detect that the driver is in the "highway hypnosis" state of mind, the normal tiredness driving state detection procedure is entered.
2. The portable fatigue driving detection apparatus of claim 1, wherein the camera includes an infrared fill-in function.
3. The portable fatigue driving detection apparatus of claim 1, wherein the power supply system comprises a rechargeable lithium battery that can be powered and recharged using a USB connection.
4. The portable fatigue driving detection apparatus of claim 1, wherein the housing is made of plastic, and the back portion of the housing is provided with a clamp and can be connected with a vehicle interior mirror.
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| CN202010010820.4A CN111145497A (en) | 2020-01-06 | 2020-01-06 | Portable driver fatigue detection equipment |
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| CN202010010820.4A CN111145497A (en) | 2020-01-06 | 2020-01-06 | Portable driver fatigue detection equipment |
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| CN113180671A (en) * | 2021-04-19 | 2021-07-30 | 维沃移动通信有限公司 | Fatigue detection device and fatigue detection method |
| CN113607505A (en) * | 2021-08-24 | 2021-11-05 | 鲁东大学 | Medical science virus detection device in air |
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Application publication date: 20200512 |