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Vehicle-mounted forewarning terminal for driving behaviors based on information fusion and forewarning method thereof

An in-vehicle terminal and behavior technology, applied in the field of intelligent transportation, can solve the problems of vehicle-mounted terminal that does 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: 2015-05-06
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

Method used

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  • Vehicle-mounted forewarning terminal for driving behaviors based on information fusion and forewarning method thereof
  • Vehicle-mounted forewarning terminal for driving behaviors based on information fusion and forewarning method thereof
  • Vehicle-mounted forewarning terminal for driving behaviors based on information fusion and forewarning method thereof

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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 1-3 Shown: It includes a facial image acquisition and analysis unit for obtaining a clear image of the driver’s face, and the facial image acquisition and analysis unit includes a high-definition image camera and an image analysis processor connected in sequence; A driving operation information collection and analysis unit with multiple operating characteristics of the steering wheel, and the driving operation information collection and analysis unit includes a pedal collection sub-module, a steering wheel control collection sub-module, and the pedal collection sub-module and a steering wheel control collection sub-module A connected driving operation information analysis processor; at the same time, this embodiment also includes a fusion analyzer and an early warning decision controller that fuse and process the information collected in the a...

Embodiment 2

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

[0040] Start the image acquisition function of the facial image acquisition and analysis unit to obtain a clear image of the driver’s face in real time; firstly, extract the driver’s facial features for fatigue detection and the facial features for driver’s attention distraction detection; 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; secondly, extract for driving The facial features detected by the operator’s attention distraction include the characteristic triangle formed by the eyes and mouth, head posture, head position, line-of-sight deviation time, and line-of-sight deviation area; when the above informatio...

Embodiment 3

[0048] Embodiment 3: An embodiment of components selected for each unit part of a 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 million pixel CCD sensor with a shooting frequency of 50 Hz. The TMS320DM642 digital image processing chip is selected as the image analysis processor; the SPI interface of TMS320DM642 is connected to the information fusion analyzer through the SPI interface ;

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

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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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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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