Smart detection and prompt system for barriers in view dead zones of truck

An intelligent detection and obstacle technology, which is applied in the field of obstacle detection and reminder system in the blind area of ​​vision of large trucks, can solve the problems of not forming an overall solution, complex operation of the solution, single large truck, etc., and achieves simple structure and equipment cost. Low, risk-reducing effect

Active Publication Date: 2018-11-20
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing solutions for blind spots in the field of vision have matured for small cars, but they are too single for large trucks, and there is no overall solution, or the solution is complicated to operate, expensive, and difficult to popularize

Method used

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  • Smart detection and prompt system for barriers in view dead zones of truck
  • Smart detection and prompt system for barriers in view dead zones of truck
  • Smart detection and prompt system for barriers in view dead zones of truck

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The intelligent detection and reminder system for obstacles in the blind area of ​​vision of large trucks in the present invention installs an ultrasonic ranging module in the blind area of ​​vision of large trucks, uses an embedded system to process ultrasonic ranging signals, and detects different ranges of blind areas according to the blind area of ​​vision of large trucks If there is no obstacle in the detection range, it will continue to detect; when there is an obstacle, the ultrasonic ranging module will transmit the information to the controller, and the controller will process the received information, and then process the processed information It is sent to the display screen, warning light and voice prompt module installed on the vehicle body to give early warning to the truck driver, people or vehicles around the truck, and obstacles in the blind area around the truck; consider that the ultrasonic wave will directly go around without passing through obstacles ...

Embodiment 2

[0039] see figure 2 The difference between the intelligent detection and reminder system for obstacles in the blind spot of large trucks in this embodiment is that the range of blind spots in the field of view is determined according to different vehicle models, and the detection system is installed at the corresponding position of the truck, and installed in the driver's cab. And the car body is equipped with warning lights, and the overall function of the detection system is realized through the following scheme:

[0040] (1) Truck start

[0041] When an obstacle is detected within the blind area of ​​the front of the vehicle, the driver will be notified by flashing warning lights in the cab, and cars and pedestrians will be notified by flashing warning lights on the truck body;

[0042] When a car is detected in the A-pillar blind spot, the truck driver will be notified by flashing warning lights in the cab;

[0043] When an obstacle is detected in the blind spot at the ...

Embodiment 3

[0059] Referring to Fig. 1, the intelligent detection and reminder system for obstacles in the blind area of ​​the large truck field of view of this embodiment is different from Embodiment 1 in that: the range of the blind area is different for different models, and the range of the blind area is determined according to the vehicle type. The calculation method of the blind area is as follows:

[0060] (1) Blind spot at the front of the car: In an ideal state, the height of the driver’s seat from the ground is about H, the height of the driver’s upper body is L, the distance between the driver’s seat and the front windshield is M, and the position of the human eye is set at point A. The projection point of the seat on the ground is point B, the front end of the lower edge of the front windshield is point a, the straight line intersection of the extension lines of A and a to the ground is point C, the angle between the human eye and the ground is θ, and the seat back is perpendicu...

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Abstract

The invention discloses a smart detection and prompt system for barriers in view dead zones of a truck. An ultrasonic distance measure module is installed in the view blind area of the truck. Existence of barriers in different blind zones is detected in a distinguished manner. When the barriers exist, the detection module transmits information to the controller, and the controller transmits the information to a body display screen, a warning light and a voice prompt module after processing to alert the truck driver and people or vehicles around the truck and the barriers. Considering large measurement errors caused by that ultrasonic waves go around to a receiving head without passing the barriers and the mutual interference of ultrasonic waves caused by multiple trucks moving in the samedirection or opposite directions, the ultrasonic ranging modules with different frequencies are adopted and acoustic waves with frequencies different from the transmitting frequency are filtered by afiltering algorithm at a receiving end, and then the barrier distance is calculated by a frequency difference method according to the acoustic Doppler effect. When two or more modules detect the samebarrier in the same detection range, the closest distance detected by the ultrasonic modules shall prevail.

Description

technical field [0001] The invention relates to a system for detecting and reminding obstacles in the blind area of ​​a large truck to realize convenient reminders to the driver and people or vehicles around the truck, so as to ensure the safe driving of the large truck and other vehicles. Background technique [0002] Drivers obtain 80% of the traffic information through vision during driving, and a good driving vision is a necessary condition to ensure driving safety. For a small car, due to its small size and flexible movement, its blind area of ​​vision is small, coupled with the small body size, the driver can better observe the situation around the body, but for a large truck, due to its large size, There has always been its visual "defect", that is, the blind spot of vision. The blind area of ​​vision is one of the important causes of traffic accidents. Accurate detection of obstacles in the blind area of ​​vision during driving and parking of large trucks is an impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/93B60Q9/00
CPCG01S15/931B60Q9/007
Inventor 李爱增王廪钱经邦李金好王国强张睿贞魏艳楠李荣荣
Owner HENAN UNIV OF URBAN CONSTR
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