US 8,013,747 B2Granted

Driving safety warning method and device for a drowsy or distracted driver

AssigneeArima Communications Corp.

InventorWen-Chi Chen

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Abstract

A driving safety warning device includes a central processing unit (CPU); an acceleration sensor for sensing an acceleration value of a car having the driving safety warning device installed therein, and sending the sensed acceleration value to the CPU for calculating, so as to obtain a driving speed value; and a gyro sensor for sensing a deviation angular speed value of the car in moving, and sending the sensed deviation angular speed value to the CPU for calculating. When the obtained driving speed value exceeds a preset value, a driving safety warning function is actuated; and when the obtained deviation angular speed value exceeds a preset maximum safety deviation angular speed value or exceeds a preset safety deviation angular speed value for wandering car while a timer is enabled and a reverse sway occurs when the timer is counting, a warning sound is emitted to remind the driver.

Claims11

Dependent claims

A driving safety warning method comprising:

switching on a driving safety warning device installed in a car to enable a driving safety warning program for the device, the driving safety warning device performing the following steps:
determining whether a driving speed value of the car exceeds a preset driving speed value and, if the preset driving speed value is exceeded, actuating a driving safety warning function of the device;
determining whether a deviation angular speed value of the car exceeds a preset maximum safety deviation angular speed value and, if the preset maximum safety deviation angular speed value is exceeded, emitting a warning sound;
determining whether a deviation angular speed value of the car exceeds a preset safety deviation angular speed value for a wandering car and, if the preset safety deviation angular speed value for a wandering car is exceeded, further determining whether a timer of the device is enabled and a reverse sway occurs while the timer is counting, and, if a timer of the device is enabled and a reverse sway occurs while the timer is counting, emitting a warning sound.

1 more element

Dependencies are inferred from the claim text.