Driving safety auxiliary system based on road surface image analysis

An image analysis and auxiliary system technology, which is applied to vehicle condition input parameters, external condition input parameters, control devices, etc., can solve problems such as no similar technology, and achieve the effects of fast control response, improved safety, and improved energy efficiency.

Active Publication Date: 2017-10-17
SHANGHAI UNIV
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  • Description
  • Claims
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Problems solved by technology

[0005] There is curr...

Method used

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  • Driving safety auxiliary system based on road surface image analysis
  • Driving safety auxiliary system based on road surface image analysis
  • Driving safety auxiliary system based on road surface image analysis

Examples

Experimental program
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Embodiment 1

[0043] refer to figure 1 , the driving safety assistance system based on road surface image analysis, including visual monitoring module (1), classification library module (2), vehicle parameter monitoring module (3), maximum allowable road friction calculation module (4), display and prompt module (5) etc. It is characterized in that: the visual monitoring module (1), classification library module (2), vehicle parameter monitoring module (3), display and prompt module (5) are connected with the maximum allowable friction calculation module (4) on the road surface; the vehicle parameter The monitoring module (3) is also connected to the display and prompt module (5); the classification library module (2) outputs to the road surface allowable maximum friction calculation module (4), and the visual detection module (1) outputs the distance-road surface image information The maximum allowable road friction calculation module (4), the output information of the vehicle parameter m...

Embodiment 2

[0044] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0045] see Figure 1~Figure 10 ,

[0046]The visual monitoring module (1) includes a visual sensor (1-1) and an image information processing module (1-2). The visual sensor (1-1) is a front camera, which is used to measure the image of the road ahead and obtain digital image information. The image information processing module (1-2) processes digital image information, extracts a road surface image in a rectangular area formed by a certain width and length ahead, and obtains distance-road surface image information.

[0047] The classification library module (2) is a storage unit of a system. The module divides typical road conditions into four typical states, including dry, wet, water, ice and snow. The knowledge of typical road conditions stored in the module is the digital image features corresponding to the above four typical surfaces.

[0048] The vehi...

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Abstract

The invention relates to a driving safety auxiliary system based on road surface image analysis. The driving safety auxiliary system comprises a visual monitoring module, a classification bank module, a vehicle parameter monitoring module, a road surface allowed-maximum-friction-force calculating module and a displaying and prompting module. According to the driving safety auxiliary system based on road surface image analysis, by utilizing the method of image processing, monitoring is conducted on the characteristics (maximum friction factors) of the road surface appearing at present and the front, allowed maximum friction force of the present road surface and the front road surface is calculated, and moreover a safe drive (tractive force / brake force) prompt is provided for a driver so that the driver can programme the tractive force or the brake force of a vehicle timely to enable speed change of the vehicle to meet the requirements for safe driving and timely following-change of a vehicle behind.

Description

technical field [0001] The invention relates to an automobile driving safety assistance system, in particular to a driving safety assistance system based on road surface image feature analysis. Background technique [0002] The traffic flow on the expressway is heavy, and the distance between cars is small. The car in front suddenly brakes or decelerates, which will cause rear-end collisions, especially in rainy and foggy weather. cause an accident. [0003] For the convoy, the speed distance between cars is often judged by the driver's visual inspection. When the first vehicle finds that the road conditions have changed, such as when there is water or snow on the road, it will often slow down suddenly. Affected by factors such as the delay of the actuator, the reaction of the vehicle behind is slow, and accidents are prone to occur. [0004] This patent proposes a method of using image processing to monitor the characteristics (maximum friction coefficient) of the current...

Claims

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Application Information

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IPC IPC(8): B60W50/14B60W40/06B60W40/068B60W40/105B60W40/107B60W40/13
CPCB60W40/06B60W40/068B60W40/105B60W40/107B60W40/13B60W50/14B60W2050/143B60W2050/146B60W2520/10B60W2520/105B60W2530/10B60W2530/20B60W2552/00B60W2552/40
Inventor 徐国卿张平
Owner SHANGHAI UNIV
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