CN105405252A - Driving state detection method and device - Google Patents
Driving state detection method and device Download PDFInfo
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- CN105405252A CN105405252A CN201510811902.8A CN201510811902A CN105405252A CN 105405252 A CN105405252 A CN 105405252A CN 201510811902 A CN201510811902 A CN 201510811902A CN 105405252 A CN105405252 A CN 105405252A
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- driving state
- automobile
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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
Abstract
The invention discloses a driving state detection method including the steps of: obtaining data detected by a gravity sensor when a car is in the driving state in real time; wearing the gravity sensor on a user head; calculating a departure angle of the user head deviating from a plumb line according to the obtained data; and judging whether the car is in a safe driving state according to the departure angle. Correspondingly, the invention also discloses a driving state detection device. Through embodiments of the invention, the detection efficiency of the car driving state can be improved.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of driving condition detection method and device.
Background technology
Along with improving constantly of people's living standard, the use amount of automobile constantly increases, and what accompany therewith is that traffic hazard occurs again and again, wherein has quite a few traffic hazard not concentrate because of driver tired driving or driver attention and causes.For this situation, prior art proposes a kind of checkout equipment, uses camera to carry out image recognition to driver head, detects the head of driver and the motion of eyes, give a warning during behaviors such as bowing when driver has, close one's eyes or make a phone call.But this checkout equipment needs to use camera, make its data processing comparatively large, consume energy more, thus reduce its detection efficiency.
Summary of the invention
The embodiment of the present invention proposes a kind of driving condition detection method and device, can improve the detection efficiency of driving condition residing for automobile.
The embodiment of the present invention provides a kind of driving condition detection method, comprising:
The data that when Real-time Obtaining automobile is in driving condition, gravity sensor detects; Described gravity sensor is worn on user's head;
The deviation angle that described user's head departs from plumb line is calculated according to obtained data;
Judge whether described automobile is in safe driving state according to described deviation angle.
Further, describedly judge whether described automobile is in safe driving state, specifically comprises according to described deviation angle:
Judge whether described deviation angle exceedes default angle threshold;
If described deviation angle exceedes default angle threshold, then record the duration that described deviation angle continues to exceed described angle threshold, and judge whether described automobile is in safe driving state according to described duration;
If described deviation angle does not exceed default angle threshold, then judge that described automobile is in safe driving state.
Further, if described deviation angle exceedes default angle threshold, then record the duration that described deviation angle continues to exceed described angle threshold, and judge whether described automobile is in safe driving state, specifically comprises according to described duration:
If described deviation angle exceedes default angle threshold, then start timing, and sart point in time during recording gauge, judge described sart point in time and whether have periodically between the time point recorded before described sart point in time;
If have periodically, then judge that described automobile is in dangerous driving state;
If do not have periodically, then, in the duration threshold value preset, whether deviation angle described in cycle criterion still exceedes described angle threshold; If still exceed described angle threshold, then when the duration of timing reaches described duration threshold value, judge that described automobile is in dangerous driving state; If do not exceed described angle threshold, then stop timing, and judge that described automobile is in safe driving state.
Further, described driving condition detection method also comprises:
When judging that described automobile is in dangerous driving state, give a warning to user with reminding user.
Preferably, described gravity sensor is arranged in the intelligent glasses being worn on user's head;
The mode of described warning comprise control the vibration of described intelligent glasses, sounding warning, display alert pattern and control in the warning of vehicle-mounted sound box sounding at least one.
Accordingly, the embodiment of the present invention provides a kind of driving state detection device, comprising:
Data acquisition module, the data that when being in driving condition for Real-time Obtaining automobile, gravity sensor detects; Described gravity sensor is worn on user's head;
Data computation module, for calculating the deviation angle that described user's head departs from plumb line according to obtained data; And,
According to described deviation angle, driving condition judge module, for judging whether described automobile is in safe driving state.
Further, described driving condition judge module specifically comprises:
Deviation angle judging unit, for judging whether described deviation angle exceedes default angle threshold;
Duration judging unit, if exceed default angle threshold for described deviation angle, then records the duration that described deviation angle continues to exceed described angle threshold, and judges whether described automobile is in safe driving state according to described duration; And,
Driving condition identifying unit, if do not exceed default angle threshold for described deviation angle, then judges that described automobile is in safe driving state.
Further, described duration judging unit specifically comprises:
Periodically judgment sub-unit, if exceed default angle threshold for described deviation angle, then start timing, and sart point in time during recording gauge, judge described sart point in time and whether have periodically between the time point recorded before described sart point in time;
First judges subelement, if for having periodically, then judge that described automobile is in dangerous driving state; And,
Second judges subelement, if for not having periodically, then, in the duration threshold value preset, whether deviation angle described in cycle criterion still exceedes described angle threshold; If still exceed described angle threshold, then when the duration of timing reaches described duration threshold value, judge that described automobile is in dangerous driving state; If do not exceed described angle threshold, then stop timing, and judge that described automobile is in safe driving state.
Further, described driving state detection device also comprises:
Alert module, for when judging that described automobile is in dangerous driving state, gives a warning to user with reminding user.
Preferably, described gravity sensor is arranged in the intelligent glasses being worn on user's head;
The mode of described warning comprise control the vibration of described intelligent glasses, sounding warning, display alert pattern and control in the warning of vehicle-mounted sound box sounding at least one.
Implement the embodiment of the present invention, there is following beneficial effect:
The driving condition detection method that the embodiment of the present invention provides and device, gravity sensor can be made to be worn on user's head, user is when driving a car, the data detected by gravity sensor calculate the deviation angle that user's head departs from plumb line, and then detect the driving condition residing for automobile according to this deviation angle, the data volume of process is few, consumes energy low, thus improves the detection efficiency of driving condition residing for automobile.
And gravity sensor can be installed in Intelligent worn device, structure is simple, easy to use.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of an embodiment of driving condition detection method provided by the invention;
Fig. 2 is the structural representation of an embodiment of intelligent glasses in driving condition detection method provided by the invention;
Fig. 3 is the schematic flow sheet of an embodiment of step S3 in driving condition detection method provided by the invention;
Fig. 4 is the schematic flow sheet of an embodiment of step S32 in driving condition detection method provided by the invention;
Fig. 5 is the structural representation of an embodiment of driving state detection device provided by the invention;
Fig. 6 is the structural representation of an embodiment of driving condition judge module in driving state detection device provided by the invention;
Fig. 7 is the structural representation of an embodiment of duration judging unit in driving state detection device provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, the schematic flow sheet of an embodiment of driving condition detection method provided by the invention, comprising:
The data that when S1, Real-time Obtaining automobile are in driving condition, gravity sensor detects; Described gravity sensor is worn on user's head;
S2, to calculate the deviation angle that described user's head departs from plumb line according to obtained data;
S3, judge whether described automobile is in safe driving state according to described deviation angle.
It should be noted that, gravity sensor can be arranged in the intelligent glasses being worn on user's head.Wear intelligent glasses user, and after this intelligent glasses detects automobile starting, start to detect the driving condition residing for automobile.Wherein, the detection mode of intelligent glasses to automobile starting comprises: be connected with mobile phone by intelligent glasses, locates the translational speed of detection of handset by cellphone GPS, when translational speed is comparatively large, during as 20KM/h, judges that automobile starts; Intelligent glasses being connected with mobile phone, when mobile phone open navigation software being detected, judging that automobile starts; Be connected with automobile by intelligent glasses, whether direct-detection automobile starts; Built-in GPS positioning chip in intelligent glasses, when detecting that the translational speed of intelligent glasses is comparatively large, during as 20KM/h, judges that automobile starts; Intelligent glasses is manually arranged the detecting pattern to driving condition residing for automobile by user.
In testing process, the data that Real-time Obtaining gravity sensor detects, comprise the value in the X, Y, Z axis of gravity sensor.As shown in Figure 2, gravity sensor is installed in intelligent glasses 6, and its installation site is arranged in the region 5 of temple 4, and wherein, the X-axis of gravity sensor and Y-axis are the axle of horizontal direction, and Z axis is the axle of vertical direction.After value in the X, Y, Z axis obtaining gravity sensor, the deviation angle that user's head departs from plumb line can be calculated.Wherein, Z value is timing, and user is in low head status, and Z axis is for time negative, and user is in new line state.Can judge whether the automobile that this user drives is in safe driving state according to this deviation angle.In the present embodiment, only need the data detected gravity sensor to carry out processing the driving condition that can detect residing for automobile, the data volume of process is few, consumes energy low, effectively improves the detection efficiency of driving condition residing for automobile.
Further, as shown in Figure 3, describedly judge whether described automobile is in safe driving state, specifically comprises according to described deviation angle:
S31, judge whether described deviation angle exceedes default angle threshold; If described deviation angle exceedes default angle threshold, then perform step S32, if described deviation angle does not exceed default angle threshold, then perform step S33;
S32, record the duration that described deviation angle continues to exceed described angle threshold, and judge whether described automobile is in safe driving state according to described duration;
S33, judge that described automobile is in safe driving state.
Wherein, the angle threshold preset is generally 30 °, if the deviation angle of user's head is greater than 30 °, then user is in new line or low head status, user's sight line is not in safe driving visual line of sight, then need the state to deviation angle continues to exceed 30 ° to carry out timing, and judge the driving condition residing for automobile according to the duration of timing; If the deviation angle of user's head is less than or equal to 30 °, then judge that automobile is in safe driving state.
Further, as shown in Figure 4, if described deviation angle exceedes default angle threshold, then the duration that described deviation angle continues to exceed described angle threshold is recorded, and judge whether described automobile is in safe driving state, specifically comprises according to described duration:
If the described deviation angle of S321 exceedes default angle threshold, then start timing, and sart point in time during recording gauge, judge described sart point in time and whether have periodically between the time point recorded before described sart point in time; If have periodically, then perform step S322, if do not have periodically, then perform step S323;
S322, judge that described automobile is in dangerous driving state;
S323, preset duration threshold value in, whether deviation angle described in cycle criterion still exceedes described angle threshold; If still exceed described angle threshold, then perform step S324, if do not exceed described angle threshold, then perform step S325;
S324, when the duration of timing reaches described duration threshold value, judge that described automobile is in dangerous driving state;
S325, stopping timing, and judge that described automobile is in safe driving state.
It should be noted that, exceed default angle threshold at deviation angle, when namely user's sight line is not within the scope of safe driving, start timing, and sart point in time T3 during recording gauge.If before this sart point in time T3, time point sequence T1, T2 are recorded, and the time interval of T1 to T2 is substantially identical with the time interval of T2 to T3, namely point sequence T1, T2 and T3 have periodically the time, then be identified as user periodically to bow, namely doze off, thus judge that automobile is in dangerous driving state.And if sart point in time T3 and time point sequence aperiodicity relation before, then need recording user sight line not to be in duration within the scope of safe driving continuously, if duration reaches default time threshold, then judge that automobile is in dangerous driving state; If before duration reaches default time threshold, there is the situation not exceeding angle threshold in the deviation angle of user's head, namely user's sight line is in safe driving scope, then stop timing, and judges that automobile is in safe driving state.Wherein, the time threshold preset is generally 10s.
Further, described driving condition detection method also comprises:
When judging that described automobile is in dangerous driving state, give a warning to user with reminding user.
Preferably, the mode of described warning comprise control the vibration of described intelligent glasses, sounding warning, display alert pattern and control in the warning of vehicle-mounted sound box sounding at least one.
It should be noted that, when detecting that automobile is in dangerous driving state, by vibration intelligent glasses, control intelligent glasses vocalized alerts, control the vehicle-mounted sound box vocalized alerts on automobile and control the modes such as intelligent glasses display alert pattern to warn user to note driving safety.
The driving condition detection method that the embodiment of the present invention provides, gravity sensor can be made to be worn on user's head, user is when driving a car, the data detected by gravity sensor calculate the deviation angle that user's head departs from plumb line, and then detect the driving condition residing for automobile according to this deviation angle, the data volume of process is few, consumes energy low, thus improves the detection efficiency of driving condition residing for automobile; And gravity sensor can be installed in Intelligent worn device, structure is simple, easy to use.
Accordingly, the present invention also provides a kind of driving state detection device, can realize all flow processs of the driving condition detection method in above-described embodiment.
See Fig. 5, be the structural representation of an embodiment of driving state detection device provided by the invention, comprise:
Data acquisition module 1, the data that when being in driving condition for Real-time Obtaining automobile, gravity sensor detects; Described gravity sensor is worn on user's head;
Data computation module 2, for calculating the deviation angle that described user's head departs from plumb line according to obtained data; And,
According to described deviation angle, driving condition judge module 3, for judging whether described automobile is in safe driving state.
Further, as shown in Figure 6, described driving condition judge module 3 specifically comprises:
Deviation angle judging unit 31, for judging whether described deviation angle exceedes default angle threshold;
Duration judging unit 32, if exceed default angle threshold for described deviation angle, then records the duration that described deviation angle continues to exceed described angle threshold, and judges whether described automobile is in safe driving state according to described duration; And,
Driving condition identifying unit 33, if do not exceed default angle threshold for described deviation angle, then judges that described automobile is in safe driving state.
Further, as shown in Figure 7, described duration judging unit 32 specifically comprises:
Periodically judgment sub-unit 321, if exceed default angle threshold for described deviation angle, then start timing, and sart point in time during recording gauge, judge described sart point in time and whether have periodically between the time point recorded before described sart point in time;
First judges subelement 322, if for having periodically, then judge that described automobile is in dangerous driving state; And,
Second judges subelement 323, if for not having periodically, then, in the duration threshold value preset, whether deviation angle described in cycle criterion still exceedes described angle threshold; If still exceed described angle threshold, then when the duration of timing reaches described duration threshold value, judge that described automobile is in dangerous driving state; If do not exceed described angle threshold, then stop timing, and judge that described automobile is in safe driving state.
Further, described driving state detection device also comprises:
Alert module, for when judging that described automobile is in dangerous driving state, gives a warning to user with reminding user.
Preferably, described gravity sensor is arranged in the intelligent glasses being worn on user's head;
The mode of described warning comprise control the vibration of described intelligent glasses, sounding warning, display alert pattern and control in the warning of vehicle-mounted sound box sounding at least one.
The driving state detection device that the embodiment of the present invention provides, gravity sensor can be made to be worn on user's head, user is when driving a car, the data detected by gravity sensor calculate the deviation angle that user's head departs from plumb line, and then detect the driving condition residing for automobile according to this deviation angle, the data volume of process is few, consumes energy low, thus improves the detection efficiency of driving condition residing for automobile; And gravity sensor can be installed in Intelligent worn device, structure is simple, easy to use.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a driving condition detection method, is characterized in that, comprising:
The data that when Real-time Obtaining automobile is in driving condition, gravity sensor detects; Described gravity sensor is worn on user's head;
The deviation angle that described user's head departs from plumb line is calculated according to obtained data;
Judge whether described automobile is in safe driving state according to described deviation angle.
2. driving condition detection method as claimed in claim 1, is characterized in that, describedly judges whether described automobile is in safe driving state, specifically comprises according to described deviation angle:
Judge whether described deviation angle exceedes default angle threshold;
If described deviation angle exceedes default angle threshold, then record the duration that described deviation angle continues to exceed described angle threshold, and judge whether described automobile is in safe driving state according to described duration;
If described deviation angle does not exceed default angle threshold, then judge that described automobile is in safe driving state.
3. driving condition detection method as claimed in claim 2, it is characterized in that, if described deviation angle exceedes default angle threshold, then record the duration that described deviation angle continues to exceed described angle threshold, and judge whether described automobile is in safe driving state, specifically comprises according to described duration:
If described deviation angle exceedes default angle threshold, then start timing, and sart point in time during recording gauge, judge described sart point in time and whether have periodically between the time point recorded before described sart point in time;
If have periodically, then judge that described automobile is in dangerous driving state;
If do not have periodically, then, in the duration threshold value preset, whether deviation angle described in cycle criterion still exceedes described angle threshold; If still exceed described angle threshold, then when the duration of timing reaches described duration threshold value, judge that described automobile is in dangerous driving state; If do not exceed described angle threshold, then stop timing, and judge that described automobile is in safe driving state.
4. driving condition detection method as claimed in claim 3, it is characterized in that, described driving condition detection method also comprises:
When judging that described automobile is in dangerous driving state, give a warning to user with reminding user.
5. driving condition detection method as claimed in claim 4, it is characterized in that, described gravity sensor is arranged in the intelligent glasses being worn on user's head;
The mode of described warning comprise control the vibration of described intelligent glasses, sounding warning, display alert pattern and control in the warning of vehicle-mounted sound box sounding at least one.
6. a driving state detection device, is characterized in that, comprising:
Data acquisition module, the data that when being in driving condition for Real-time Obtaining automobile, gravity sensor detects; Described gravity sensor is worn on user's head;
Data computation module, for calculating the deviation angle that described user's head departs from plumb line according to obtained data; And,
According to described deviation angle, driving condition judge module, for judging whether described automobile is in safe driving state.
7. driving state detection device as claimed in claim 6, it is characterized in that, described driving condition judge module specifically comprises:
Deviation angle judging unit, for judging whether described deviation angle exceedes default angle threshold;
Duration judging unit, if exceed default angle threshold for described deviation angle, then records the duration that described deviation angle continues to exceed described angle threshold, and judges whether described automobile is in safe driving state according to described duration; And,
Driving condition identifying unit, if do not exceed default angle threshold for described deviation angle, then judges that described automobile is in safe driving state.
8. driving state detection device as claimed in claim 7, it is characterized in that, described duration judging unit specifically comprises:
Periodically judgment sub-unit, if exceed default angle threshold for described deviation angle, then start timing, and sart point in time during recording gauge, judge described sart point in time and whether have periodically between the time point recorded before described sart point in time;
First judges subelement, if for having periodically, then judge that described automobile is in dangerous driving state; And,
Second judges subelement, if for not having periodically, then, in the duration threshold value preset, whether deviation angle described in cycle criterion still exceedes described angle threshold; If still exceed described angle threshold, then when the duration of timing reaches described duration threshold value, judge that described automobile is in dangerous driving state; If do not exceed described angle threshold, then stop timing, and judge that described automobile is in safe driving state.
9. driving state detection device as claimed in claim 8, it is characterized in that, described driving state detection device also comprises:
Alert module, for when judging that described automobile is in dangerous driving state, gives a warning to user with reminding user.
10. driving state detection device as claimed in claim 9, it is characterized in that, described gravity sensor is arranged in the intelligent glasses being worn on user's head;
The mode of described warning comprise control the vibration of described intelligent glasses, sounding warning, display alert pattern and control in the warning of vehicle-mounted sound box sounding at least one.
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| CN201510811902.8A CN105405252B (en) | 2015-11-20 | 2015-11-20 | A kind of driving condition detection method and device |
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| CN111291607A (en) * | 2018-12-06 | 2020-06-16 | 广州汽车集团股份有限公司 | Driver distraction detection method, driver distraction detection device, computer equipment and storage medium |
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