CN112883834A - DMS system distraction detection method, DMS system distraction detection system, DMS vehicle, and storage medium - Google Patents
DMS system distraction detection method, DMS system distraction detection system, DMS vehicle, and storage medium Download PDFInfo
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- CN112883834A CN112883834A CN202110128286.1A CN202110128286A CN112883834A CN 112883834 A CN112883834 A CN 112883834A CN 202110128286 A CN202110128286 A CN 202110128286A CN 112883834 A CN112883834 A CN 112883834A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/59—Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
- G06V20/597—Recognising the driver's state or behaviour, e.g. attention or drowsiness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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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
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/225—Direction of gaze
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/229—Attention level, e.g. attentive to driving, reading or sleeping
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Abstract
The invention discloses a detection method, a detection system, a vehicle and a storage medium for DMS system distraction, which comprise the following steps: step 1, acquiring a vehicle speed signal and a power supply state signal, entering step 2 if the power supply gear is an ON gear and the vehicle speed is greater than a preset vehicle speed, and otherwise, repeatedly executing the step 1; step 2, acquiring a driver image signal, detecting the head and head postures of the driver based on the driver image signal, and outputting an unknown attention dispersion signal if the head of the driver is not detected; if the head is detected and the head posture meets the preset requirement, tracking and detecting the sight line of the driver, and outputting a subarea area where the sight line of the driver is located and the duration time; and outputting the attention condition of the driver according to the subarea area where the sight of the driver is positioned and the duration. The invention can accurately judge the dangerous condition of distraction of the driver in the driving process.
Description
Technical Field
The invention belongs to the technical field of automobile intellectualization, and particularly relates to a detection method and system for attention dispersion of a DMS system, a vehicle and a storage medium.
Background
Along with the higher and higher intellectuality degree of present car, the user also more and more pays more attention to the security that the vehicle went when enjoying the convenience that intellectuality brought. For example, in patent document CN110946595A, a method for detecting fatigue degree of a driver based on a DMS system detects the fatigue state of the driver by using the DMS system, so as to prompt the driver with fatigue, but during driving of a vehicle, the driver may have a safety risk due to distraction in addition to fatigue.
Therefore, it is necessary to develop a new DMS system distraction detection method, system, vehicle, and storage medium.
Disclosure of Invention
The invention aims to provide a detection method, a detection system, a vehicle and a storage medium for attention distraction of a DMS system, which can accurately judge the dangerous condition of attention distraction of a driver in the driving process.
In a first aspect, the present invention provides a method for detecting attention dispersion of a DMS system, including the following steps:
step 1, acquiring a vehicle speed signal and a power supply state signal, entering step 2 if the power supply gear is an ON gear and the vehicle speed is greater than a preset vehicle speed, and otherwise, repeatedly executing the step 1;
step 2, acquiring a driver image signal, detecting the head and head postures of the driver based on the driver image signal, and outputting an unknown attention dispersion signal if the head of the driver is not detected;
if the head is detected and the head posture meets the preset requirement, tracking and detecting the sight line of the driver, and outputting a subarea area where the sight line of the driver is located and the duration time; the partitioned area is divided into a safe area, a warning area and a dangerous area according to the angle of the driver deviating from the normal driving sight line;
if the sight of the driver is in a safe area, sending a signal that the attention is not dispersed;
if the sight of the driver is in the warning area and the duration time reaches a first preset time, sending out a driver attention dispersion signal;
if the sight of the driver is in the dangerous area and the duration time reaches a second preset time, sending out a signal for distracting the driver;
and if the area where the sight of the driver is located is not in any one of the safety area, the warning area and the dangerous area, sending out an unknown attention distraction signal.
Further, the head pose meeting the preset requirements means that: pitch angle > + - α °, or yaw angle > + - β °, or roll angle > + - γ of the head pose, wherein: and alpha, beta and gamma are calibration values.
Further, the safety region represents a region where the driver is looking at the road ahead; the alarm area indicates that the sight of the driver deviates from a safe area, and the sight of the driver in the alarm area can stay for a certain time; the danger zone indicates that the time that the driver's sight line stays in danger needs to be strictly controlled.
Further, the first preset time and the second preset time are related to the magnitude of the vehicle speed.
Further, when V is more than or equal to 0 and less than or equal to 70km/h, the first preset time is 4s, and the second preset time is 4 s;
when V is more than or equal to 70km/h and less than or equal to 120km/h, the first preset time is 3s, and the second preset time is 3 s;
when the speed is less than or equal to 120km/h, the first preset time is 2s, and the second preset time is 2 s;
wherein: v represents a vehicle speed.
In a second aspect, the present invention provides a DMS system distraction detection system, including:
the camera is used for acquiring a head image of a driver;
the vehicle body electronic stabilizing module is used for providing a vehicle speed signal;
the vehicle body controller is used for providing a power supply state signal;
and a driver monitoring module electrically connected to the camera, the body electronic stabilization module and the body controller, respectively, said driver monitoring module being programmed so as to perform the steps of the DMS system distraction detection method according to the invention.
In a third aspect, a vehicle according to the present invention employs a DMS system distraction detection system according to the present invention.
In a fourth aspect, the present invention provides a storage medium, which includes a memory and a controller, wherein the memory stores a computer readable program, and the controller can execute the steps of the DMS system distraction detection method according to the present invention when invoking the computer readable program.
The invention has the following advantages: the driver data provided by the camera in the vehicle and the vehicle speed information provided by the vehicle body electronic stabilization module are combined with the defined sight line zone grade, and the driver monitoring module is used for judging and outputting the dangerous situation of driver distraction in the driving process, so that a user can know the dangerous situation of driver distraction more intuitively and clearly in the driving process, the driving behavior of the user is corrected, and the driving risk of the user is reduced.
Drawings
FIG. 1 is a schematic block diagram of the present embodiment;
FIG. 2 is a schematic view of a view line partition in the present embodiment;
FIG. 3 is a logic state diagram of the distraction process in this embodiment.
Detailed Description
The invention will be further explained with reference to the drawings.
In this embodiment, a method for detecting attention dispersion of a DMS system includes the following steps:
step 1, acquiring a vehicle speed signal and a power supply state signal, entering step 2 if the power supply gear is an ON gear and the vehicle speed is greater than a preset vehicle speed, and otherwise, repeatedly executing the step 1;
step 2, acquiring a driver image signal, detecting the head and head postures of the driver based on the driver image signal, and outputting an unknown attention dispersion signal if the head of the driver is not detected;
if the head is detected and the head posture meets the preset requirement, tracking and detecting the sight line of the driver, and outputting a subarea area where the sight line of the driver is located and the duration time; the subarea area is divided into a safety area, a warning area and a dangerous area according to the angle of the driver deviating from the normal driving sight line.
In this embodiment, the head posture meeting the preset requirement means: pitch angle > + - α °, or yaw angle > + - β °, or roll angle > + - γ of the head pose, wherein: and alpha, beta and gamma are calibration values.
In this embodiment, the partition classification is divided into a safe area, a warning area, and a dangerous area according to the angle of deviation of the driver from the normal driving sight line. In the present embodiment, the safety region indicates a region where the driver is looking at the road ahead, see region 1 in fig. 2. The warning area indicates the deviation of the driver's line of sight from the safe area, where the driver's line of sight may stay for a certain time, see area 2 to area 9 in fig. 2. The danger zone indicates that the time during which the driver's sight line stays in danger needs to be strictly controlled, see zones 10 to 14 in fig. 2. The other partition area is defined as other.
In this embodiment, according to the fact that the driver's sight line falls into different areas on the vehicle, and the power state signal and the vehicle speed signal of the vehicle are combined, a corresponding attention distraction warning value, a specific attention distraction logic, is sent out, as shown in fig. 3:
if the driver's sight line is in a safe area, a signal of non-distraction is sent out. If the driver's sight line is in the warning area and the duration reaches the first preset time, a driver attention distraction signal is sent out (in the embodiment, the levels of distraction signals are distinguished by 0, 1 and 2, 0 represents safety, that is, when the attention is not distracted, the system output is 0, 1 represents danger, 2 represents very danger, and in this case, the output value of distraction signal is 1). If the sight line of the driver is in the dangerous area and the duration reaches a second preset time, a driver attention distraction signal is sent out (in this case, the output value of the distraction signal is 2, so that other systems can distinguish the danger level when in use). And if the area where the sight of the driver is located is not in any one of the safety area, the warning area and the dangerous area, sending out an unknown attention distraction signal.
In this embodiment, attention distraction logic is shown in fig. 3, where:
c1 shows that the power supply gear is ON and the vehicle speed is greater than the preset vehicle speed (the preset vehicle speed is obtained by calibration);
c2 shows that the power state is OFF or the vehicle speed is less than or equal to the preset vehicle speed;
c3 indicates no head detected;
c4 represents that the attention of the driver is in the warning area and lasts for k time, or in the danger area and lasts for k time, and the k value is a calibratable value;
c5 indicates that the driver's attention is in safe zone and for n time, n is a calibratable value;
a1 denotes that the "distraction status signal" is set to "unknown";
a2 denotes that the "distraction status signal" is set to "inactive";
a3 denotes that the "distraction status signal" is set to "distraction";
a4 indicates that the "distraction status signal" is set to "not distracted".
In this embodiment, k and n can be calibrated according to the vehicle speed signal, and when the vehicle speed satisfies the following region, the alarm time of the driver monitoring module is dynamically calibrated:
(1) when V is more than or equal to 0 and less than or equal to 70km/h, calibrating k as 4s and calibrating n as 3 s;
(2) when V is more than or equal to 70km/h and less than or equal to 120km/h, calibrating k to be 3s and calibrating n to be 2 s;
(3) v is less than or equal to 120km/h, k is marked as 2s, and n is marked as 1 s.
Wherein: v represents a vehicle speed.
Referring to fig. 1, in the present embodiment, the DMS system distraction detection system includes:
the camera is used for acquiring a head image of a driver;
the vehicle body electronic stabilizing module is used for providing a vehicle speed signal;
the vehicle body controller is used for providing a power supply state signal;
and a driver monitoring module electrically connected to the camera, the body electronic stabilization module and the body controller, respectively, the driver monitoring module being programmed to perform the steps of the DMS system distraction detection method as described in the present embodiment.
In the present embodiment, a vehicle employs the DMS system distraction detection system as described in the present embodiment.
In this embodiment, a storage medium includes a memory and a controller, the memory stores a computer readable program, and the controller can execute the steps of the DMS system distraction detection method as described in this embodiment when calling the computer readable program.
Claims (8)
1. A DMS system distraction detection method is characterized by comprising the following steps:
step 1, acquiring a vehicle speed signal and a power supply state signal, entering step 2 if the power supply gear is an ON gear and the vehicle speed is greater than a preset vehicle speed, and otherwise, repeatedly executing the step 1;
step 2, acquiring a driver image signal, detecting the head and head postures of the driver based on the driver image signal, and outputting an unknown attention dispersion signal if the head of the driver is not detected;
if the head is detected and the head posture meets the preset requirement, tracking and detecting the sight line of the driver, and outputting a subarea area where the sight line of the driver is located and the duration time; the partitioned area is divided into a safe area, a warning area and a dangerous area according to the angle of the driver deviating from the normal driving sight line;
if the sight of the driver is in a safe area, sending a signal that the attention is not dispersed;
if the sight of the driver is in the warning area and the duration time reaches a first preset time, sending out a driver attention dispersion signal;
if the sight of the driver is in the dangerous area and the duration time reaches a second preset time, sending out a signal for distracting the driver;
and if the area where the sight of the driver is located is not in any one of the safety area, the warning area and the dangerous area, sending out an unknown attention distraction signal.
2. The DMS system distraction detection method of claim 1, wherein: the head posture meeting the preset requirement means that: pitch angle > + - α °, or yaw angle > + - β °, or roll angle > + - γ of the head pose, wherein: and alpha, beta and gamma are calibration values.
3. The DMS system distraction detection method according to claim 1 or 2, wherein: the safety area represents an area where the driver is looking ahead of the road; the alarm area indicates that the sight of the driver deviates from a safe area, and the sight of the driver in the alarm area can stay for a certain time; the danger zone indicates that the time that the driver's sight line stays in danger needs to be strictly controlled.
4. The DMS system distraction detection method of any of claims 1 to 3, wherein: the first preset time and the second preset time are related to the magnitude of the vehicle speed.
5. The DMS system distraction detection method of claim 4, wherein:
when V is more than or equal to 0 and less than or equal to 70km/h, the first preset time is 4s, and the second preset time is 4 s;
when V is more than or equal to 70km/h and less than or equal to 120km/h, the first preset time is 3s, and the second preset time is 3 s;
when the speed is less than or equal to 120km/h, the first preset time is 2s, and the second preset time is 2 s;
wherein: v represents a vehicle speed.
6. A DMS system distraction detection system comprising:
the camera is used for acquiring a head image of a driver;
the vehicle body electronic stabilizing module is used for providing a vehicle speed signal;
the vehicle body controller is used for providing a power supply state signal;
and the driver monitoring module is respectively electrically connected with the camera, the vehicle body electronic stabilization module and the vehicle body controller, and is characterized in that:
the driver monitoring module is programmed to perform the steps of the DMS system distraction detection method of any one of claims 1 to 5.
7. A vehicle, characterized in that: a detection system for distraction using a DMS system as claimed in claim 6.
8. A storage medium comprising a memory and a controller, the memory having a computer-readable program stored therein, wherein: the controller, when invoking the computer readable program, is capable of performing the steps of the DMS system distraction detection method of any of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110128286.1A CN112883834A (en) | 2021-01-29 | 2021-01-29 | DMS system distraction detection method, DMS system distraction detection system, DMS vehicle, and storage medium |
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| CN202110128286.1A CN112883834A (en) | 2021-01-29 | 2021-01-29 | DMS system distraction detection method, DMS system distraction detection system, DMS vehicle, and storage medium |
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Cited By (2)
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| CN115320626A (en) * | 2022-10-11 | 2022-11-11 | 四川省公路规划勘察设计研究院有限公司 | Danger perception capability prediction method and device based on human-vehicle state and electronic equipment |
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