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A driving behavior warning vehicle terminal based on information fusion and its warning method

A vehicle-mounted terminal and behavior technology, which is applied in the field of intelligent transportation, can solve the problems of vehicle-mounted terminals that do not involve early warning of driving behavior, incomplete driving behavior analysis indicators, and no driver behavior analysis, etc., so as to improve the level of road traffic safety, improve the level of prevention, good compatibility

Active Publication Date: 2017-05-31
JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]However, most of the products monitor and warn the vehicle trajectory and the video in the trunk, and do not conduct a substantive analysis of the driver's behavior; another part of the product involves the safety of driving behavior Early warning technology, but due to technical bottlenecks such as the difficulty of single information source analysis algorithms, it is difficult to make a more accurate judgment on driving behavior, or the driving behavior analysis indicators are incomplete
[0005] In terms of patent achievements in similar technical fields, patent ZL200910110643.0 proposes a vehicle early warning analysis and processing method and system, and describes the vehicle monitoring and early warning method under the premise of a clear vehicle dangerous state; patent ZL200810040704.6 uses GPS smart vehicle terminal to realize vehicle monitoring and scheduling system to realize vehicle monitoring and early warning; patent ZL201110210735.3 uses the camera to collect images including the driver's hand and steering wheel, and then processes and recognizes the images to judge the driver's behavior; Describes a driving operation feature analysis method; these similar patents do not involve the vehicle-mounted terminal and method for early warning of driving behavior based on the fusion of driver's face image and driver's operation information

Method used

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  • A driving behavior warning vehicle terminal based on information fusion and its warning method
  • A driving behavior warning vehicle terminal based on information fusion and its warning method
  • A driving behavior warning vehicle terminal based on information fusion and its warning method

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Embodiment 1

[0037] Embodiment 1: A vehicle-mounted terminal for early warning of driving behavior based on information fusion

[0038] Such as Figure 1-3Shown: comprise in order to obtain the facial image acquisition and analysis unit of the driver's facial clear image, and described facial image acquisition and analysis unit comprises the high-definition image camera of sequence connection, image analysis processor; In order to obtain driver's pedal, A driving operation information collection and analysis unit for various operation characteristics of the steering wheel, and the driving operation information collection and analysis unit includes a pedal collection submodule, a steering wheel control collection submodule, and the pedal collection submodule and the steering wheel control collection submodule connected driving operation information analysis processor; at the same time, this embodiment also includes a fusion analyzer and an early warning judgment controller that fuse and pro...

Embodiment 2

[0039] Embodiment 2: An early warning method for a driving behavior early warning vehicle-mounted terminal based on information fusion, the steps are as follows:

[0040] Start the image acquisition function of the face image acquisition and analysis unit to obtain a clear image of the driver's face in real time; first, extract the facial features of the driver for fatigue detection and the facial features of the driver's distraction detection; wherein, the The facial image acquisition and analysis unit described above extracts the facial features of the driver for fatigue detection, including eye size, eye blink frequency, head posture, pupil diameter, eyeball rotation speed, and eye closure time; The facial features detected by distraction detection include the characteristic triangle formed by eyes and mouth, head posture, head position, line of sight deviation time, and line of sight deviation area; The main factor is quantified, and the quantitative weight of the characte...

Embodiment 3

[0048] Embodiment 3: An embodiment of the device selected by each unit of the vehicle-mounted terminal for early warning of driving behavior based on information fusion

[0049] Such as Figure 4 Shown:

[0050] 1. The high-definition image camera of the facial image acquisition and analysis unit adopts an 8-megapixel CCD sensor with a shooting frequency of 50Hz. The TMS320DM642 digital image processing chip is selected as the image analysis processor; the SPI interface of the TMS320DM642 is connected to the information fusion analyzer through the SPI interface ;

[0051] 2. The pedal acquisition sub-module in the driving operation information acquisition and analysis unit uses brake pedal force and displacement sensors to detect the strength and speed of pedaling, and outputs a voltage signal; the steering wheel control acquisition sub-module uses a relative value rotation angle sensor to output a square wave signal; The operation information analysis processor adopts low-c...

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Abstract

The invention discloses a vehicle-mounted forewarning terminal for driving behaviors based on information fusion; the vehicle-mounted forewarning terminal comprises a face image acquisition and analysis unit, a driving operation information acquisition and analysis unit, an information fusion analyzer, a forewarning judging controller, a car-interior forewarning unit and a remote alarming unit, wherein the face image acquisition and analysis unit and the driving operation information acquisition and analysis unit are respectively communicated with the information fusion analyzer; the information fusion analyzer is communicated with the forewarning judging controller which is respectively communicated with the car-interior forewarning unit and the remote alarming unit. The vehicle-mounted forewarning terminal for driving behaviors based on information fusion is applied to monitoring, analyzing and forewarning dangerous driving behaviors, is good in compatibility and strong in expandability and can be conveniently integrated with other vehicle information recording systems and vehicle monitoring systems.

Description

technical field [0001] The invention relates to a vehicle active safety early warning device and method, in particular to an information fusion-based driving behavior early warning vehicle-mounted terminal and an early warning method, belonging to the field of intelligent transportation. Background technique [0002] With the continuous increase of motor vehicles, the problem of road traffic safety accidents has become prominent. According to the statistical data analysis of the Ministry of Public Security, the leading cause of traffic safety accidents is the driver's dangerous driving behavior, including unsafe behaviors such as speeding, fatigue driving, and illegal driving. [0003] The Ministry of Transport puts forward corresponding requirements and solutions for early warning of dangerous driving behavior in the public transportation system and dangerous goods vehicle operation system. From this, a series of vehicle satellite positioning terminals, vehicle video monito...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/06
CPCG08B21/06
Inventor 王维锋董学武季锦章万剑茆佳能丁闪闪周云城张立崔志伟
Owner JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST
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