A smart phone-based dangerous driving behavior detection method
A technology for dangerous driving and smart phones, applied in the field of intelligent transportation, can solve the problems of inconvenience and high cost, and achieve the effect of ensuring accuracy, low cost, and easy popularization and use.
Inactive Publication Date: 2019-11-05
BEIHANG UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Aiming at the shortcomings of the existing dangerous driving behavior detection methods such as high cost and inconvenient use, the present invention provides a smart phone-based dangerous driving behavior detection method
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] The technical solutions of the present invention will be described below in conjunction with the drawings and embodiments.
[0029] The present invention is a smart phone-based dangerous driving behavior detection method, the flow chart is as follows figure 1 shown, including the following steps:
[0030] Step 1: Using the accelerometer and gyroscope in the smart phone as sensors, it is determined that both the car and the mobile phone are in a static state relative to the inertial system, and the pitch angle and roll angle of the mobile phone relative to the car in this static state are calculated. On the basis of the pitch angle and roll angle, when the car accelerates and decelerates in a straight line, the yaw angle of the mobile phone relative to the car can be further estimated according to the acceleration difference.
[0031] Specifically include:
[0032] Define the car coordinate system and the mobile phone coordinate system respectively as figure 2 , im...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a dangerous driving behavior detection method based on an intelligent cellphone, which belongs to the field of intelligent traffic. The method takes an accelerometer and a gyroscope as a sensor in the cellphone, real-time attitude updating of the automobile by the cellphone is carried out dangerous driving behavior is determined according to automobile pitch angle and automobile roll angle by relative to horizontal ground during a driving process to obtain the preliminary detection result, determining an interval segment when the vehicle climbs and descends, removing the dangerous driving behavior detection result corresponding the interval segment in the preliminary detection result, and achieving a purpose of increasing the dangerous driving behavior detection accuracy. Under prerequisite that detection precision is guaranteed, the problems of high cost of dangerous driving, requirement of satellite navigation or insufficient magnetic sensor can be overcome, the detection method has high economic value, the cellphone can be placed at any position in the automobile, the detection has real-time performance, operation is simple, and popularization and usage are easy.
Description
technical field [0001] The invention belongs to the field of intelligent transportation, and relates to a method for detecting dangerous driving behavior based on a smart phone. Background technique [0002] Dangerous driving behavior detection technology is of great significance in the field of intelligent transportation, especially traffic safety. Existing dangerous driving behavior detection technologies generally have high cost and need to rely on external facilities, such as CAN bus information inside the car, satellite navigation information, cameras, etc., which are difficult to meet the requirements of low cost. [0003] Smartphone-based dangerous driving behavior detection can effectively reduce the cost of detection methods. Existing smart phone-based dangerous driving behavior detection algorithms need auxiliary information such as satellite navigation information, internal magnetic sensor information, and cameras. Among them, satellite navigation information ha...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/26
CPCG01C21/26
Inventor 张海李福张晓鸥郭雷
Owner BEIHANG UNIV