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Method and device for processing alarm information for anti-collision laser radar system of vehicle

A technology of laser radar and warning information, applied in collision avoidance systems, signal devices, sound signal devices, etc., can solve the problems of complex radar discrimination and complex driving conditions, and achieve the goal of reducing vicious traffic accidents, low cost, and simple device structure. Effect

Inactive Publication Date: 2012-02-01
李少勤
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Problems solved by technology

[0007] Due to the complex driving conditions of vehicles on the road, such as merging, shifting, turning, uphill and downhill, static guardrails, sign boards on both sides of the road, and the influence of various bad weather, the radar's judgment of danger is very complicated.

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  • Method and device for processing alarm information for anti-collision laser radar system of vehicle
  • Method and device for processing alarm information for anti-collision laser radar system of vehicle

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Embodiment

[0033] Such as figure 1 As shown, A is the main vehicle, B is the obstacle, and O is the position of the laser radar of the A vehicle; the left side of the main vehicle O point is negative, and the right side is positive; the one-dimensional parameter describing the obstacle is the straight-line distance D and The angle θ is transformed into a vertical distance of d; a lateral distance of w; the width of the car body is a; the steering angular velocity of the body car is ω (clockwise is negative, counterclockwise is positive), and the pitch angle (slope) is β (horizon positive above the horizon, negative below the horizon); defining the degree of danger is ultimately related to w, and is proportional to the relative speed, if the time for the lidar to scan a line is Δt, the angle of rotation is ω×Δt.

[0034] The detection range of the four-line scanning lidar is 0-150m, and the four-line coverage is 7.5° in the vertical direction. The distance information obtained from the ta...

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Abstract

The invention relates to a method and device for processing alarm information for an anti-collision laser radar system of a vehicle. The method comprises the following steps of: (1) collecting steering information of the vehicle by a steering angular velocity sensor; (2) collecting slope information by a pitch sensor; (3) collecting target distance information and target velocity information by a four-spectral scanning laser radar; (4) setting information through a man-machine interface by a driver; (5) processing the information via a danger ambiguity function and giving out a danger level; and (6) outputting an alarm signal. The device comprises the four-spectral scanning laser radar, the pitch sensor, the steering angular velocity sensor, a processor, a key device and an alarm device. Compared with the prior art, the device has the advantages of simple structure, low cost, high sensitivity, capabilities of reducing serious traffic accidents and preventing accidental operations of the driver, and the like.

Description

technical field [0001] The invention relates to a method and a device for processing warning information in an anti-collision laser radar system, in particular to a method and a device for processing warning information in an automobile anti-collision laser radar system. Background technique [0002] Automobile anti-collision lidar can solve the problem of anti-collision of moving vehicles. Under the increasingly busy and complex road conditions of modern traffic, it can reduce vicious accidents and prevent accidental operation of drivers, so it is of great significance. [0003] Most of the existing patents only propose how to realize the detection of obstacles from a structural point of view, but how to use the detection data to form an alarm strategy is not involved. [0004] Patent CN200610044077.4 discloses a one-dimensional scanning anti-collision lidar system, but does not mention how to use radar parameters to form alarm data. [0005] Patent CN200410044477.6 disclo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/93G01S7/02B60R21/01B60Q5/00G08G1/16
Inventor 李少勤
Owner 李少勤
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