Driving monitoring device and method utilizing the same
First Claim
1. A driving monitoring method using a driving monitoring device in a vehicle, the driving monitoring device comprising a camera and a button, the method comprising:
- setting a first angle of the camera to capture a face of a driver, and setting a threshold value to determine if the driver is awake;
setting a second angle of the camera to capture a steering wheel of the vehicle, setting a division standard to divide a steering wheel region, and setting standard positions of hands of the driver on the steering wheel;
sending a first instruction in response to receiving a press signal from the button;
controlling the camera to capture a face image of the driver at the first angle according to the first instruction;
identifying a facial region in the face image, locating an eye region from the facial region, and calculating a ratio of a height and a width of the eye region;
determining that the driver is not awake if the calculated ratio is not larger than the threshold value, and invoking a second instruction;
controlling the camera to capture a first image of the steering wheel at the second angle according to the second instruction;
identifying a steering wheel region and two hand regions, dividing the steering wheel region into a plurality of sub regions according to the division standard, and confirming one or more sub regions corresponding to the two hand regions; and
determining that the driver drives the vehicle appropriately if the confirmed sub regions match the standard positions;
ordetermining that the driver drives the vehicle inappropriately if the confirmed sub regions do not match the standard positions, and outputting alert signals to prompt the driver.
1 Assignment
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Accused Products
Abstract
A driving monitoring device and method includes controlling a camera to capture a face image of a driver, identifying the face image to determine if the driver is awake, and controlling a camera to capture a first image of the steering wheel. The driving monitoring device and method further includes identifying a steering wheel region and two hand regions, confirming one or more sub regions of the steering wheel region corresponding to the two hand regions, determining that the driver drives the vehicle inappropriately if the confirmed sub regions do not match standard positions, and outputting alert signals to prompt the driver.
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Citations
18 Claims
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1. A driving monitoring method using a driving monitoring device in a vehicle, the driving monitoring device comprising a camera and a button, the method comprising:
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setting a first angle of the camera to capture a face of a driver, and setting a threshold value to determine if the driver is awake; setting a second angle of the camera to capture a steering wheel of the vehicle, setting a division standard to divide a steering wheel region, and setting standard positions of hands of the driver on the steering wheel; sending a first instruction in response to receiving a press signal from the button; controlling the camera to capture a face image of the driver at the first angle according to the first instruction; identifying a facial region in the face image, locating an eye region from the facial region, and calculating a ratio of a height and a width of the eye region; determining that the driver is not awake if the calculated ratio is not larger than the threshold value, and invoking a second instruction; controlling the camera to capture a first image of the steering wheel at the second angle according to the second instruction; identifying a steering wheel region and two hand regions, dividing the steering wheel region into a plurality of sub regions according to the division standard, and confirming one or more sub regions corresponding to the two hand regions; and determining that the driver drives the vehicle appropriately if the confirmed sub regions match the standard positions;
ordetermining that the driver drives the vehicle inappropriately if the confirmed sub regions do not match the standard positions, and outputting alert signals to prompt the driver. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A driving monitoring device in a vehicle, the driving monitoring device comprising:
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a camera; a storage device; a button; at least one processor; and one or more programs stored in the storage device and being executable by the at least one processor, the one or more programs comprising; a setting module operable to set a first angle of the camera to capture a face of a driver, set a threshold value to determine if the driver is awake, set a second angle of the camera to capture a steering wheel of the vehicle, set a division standard to divide a steering wheel region, and set standard positions of hands of the driver on the steering wheel; an activation module operable to send a first instruction in response to receiving a press signal from the button; a control module operable to control the camera to capture a face image of the driver at the first angle according to the first instruction; and an identification module operable to identify a facial region in the face image, locate an eye region from the facial region, and calculate a ratio of a height and a width of the eye region; a determination module operable to determine that the driver is not awake if the calculated ratio is not larger than the threshold value; the activation module is further operable to invoke a second instruction; the control module further operable to control the camera to capture a first image of the steering wheel at the second angle according to the second instruction; the identification module further operable to identify a steering wheel region and two hand regions, divide the steering wheel region into a plurality of sub regions according to the division standard, and confirm one or more sub regions corresponding to the two hand regions; the determination module further operable to determine that the driver drives the vehicle appropriately if the confirmed sub regions match the standard positions; and an alert module operable to output alert signals to prompt the driver if the confirmed sub regions do not match the standard positions. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory storage medium storing a set of instructions, the set of instructions capable of being executed by a processor to perform a driving monitoring method using a driving monitoring device in a vehicle, the driving monitoring device comprising a camera and a button, the method comprising:
- setting a first angle of the camera to capture a face of a driver, and setting a threshold value to determine if the driver is awake;
setting a second angle of the camera to capture a steering wheel of the vehicle, setting a division standard to divide a steering wheel region, and setting standard positions of hands of the driver on the steering wheel;
sending a first instruction in response to receiving a press signal from the button;
controlling the camera to capture a face image of the driver at the first angle according to the first instruction;
identifying a facial region in the face image, locating an eye region from the facial region, and calculating a ratio of a height and a width of the eye region;
determining that the driver is not awake if the calculated ratio is not larger than the threshold value, and invoking a second instruction;
controlling the camera to capture a first image of the steering wheel at the second angle according to the second instruction;
identifying a steering wheel region and two hand regions, dividing the steering wheel region into a plurality of sub regions according to the division standard, and confirming one or more sub regions corresponding to the two hand regions; and
determining that the driver drives the vehicle appropriately if the confirmed sub regions match the standard positions;
or determining that the driver drives the vehicle inappropriately if the confirmed sub regions do not match the standard positions, and outputting alert signals to prompt the driver. - View Dependent Claims (14, 15, 16, 17, 18)
- setting a first angle of the camera to capture a face of a driver, and setting a threshold value to determine if the driver is awake;
Specification