A warning method for preventing over-tensioning of the winch rope of road rescue equipment based on graphic recognition
A graphic recognition and winch technology, which is applied in alarm, image analysis, image data processing, etc., can solve the problems of bad weather, observation without viewing angle, etc., and achieve the effect of simple algorithm, simple equipment and low cost
Active Publication Date: 2019-10-11
SOUTHEAST UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The control of the retraction and release of the winch rope during the traditional winch mainly relies on manual observation. This method is easily affected by factors such as bad weather and observation angles, and has many shortcomings.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0022] A kind of road rescue equipment winch rope anti-over-pulling early warning method based on graphic recognition, comprising the following steps:
[0023] (1) Uniformly mark geometric figures on the circumference of the outer wheel of the winch rope groove;
[0024] There are three kinds of geometric figure marks in this embodiment: square "□", circle "○" and equilateral triangle "△"; the three are evenly arranged on the roulette in the clockwise order of "□○△". It is set in the form of four groups a week, that is, each geometric figure mark occupies the angle range of 30° of the wheel, and a total of four groups of 12 geometric figure marks are carried out in one week. The specific mark form is as follows figure 1 As shown, the color of the three kinds of geometric figure marks adopts the contrasting color of the background color of the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a pattern recognition based overdrawn preventing alarm method for winch rope of road rescue equipment. The method includes steps of 1, marking geometric patterns on the periphery of a wheel on the outer side of a winch rope groove; 2, arranging a pattern collecting device on the outer side of the winch rope groove of the road rescue equipment, wherein the collecting area of the pattern collecting device is greater than the single geometric pattern mark in size and an area greater than the single geometric pattern mark is set as an interest area in the collecting area so as to make the interest area can only include one geometric pattern mark; 3, identifying the types of the geometric pattern marks included by the interest areas in each frame of image collected by the image collecting device; 4, identifying collected images continuously and obtaining a geometric pattern mark change sequence; and obtaining winch shaft rotation direction and rotation angle according to the geometric pattern mark change sequence; 5, calculating the winch shaft rotation direction and rotation angle and giving safety alarm when the loop number of the winch rope is smaller than a threshold value.
Description
technical field [0001] The invention belongs to the field of safety early warning of road rescue equipment, and in particular relates to an early warning method for preventing over-drawing of a winch rope. Background technique [0002] With the rapid growth of my country's economy, road traffic infrastructure conditions are gradually improving, and the number of motor vehicles is also increasing year by year. Social demands such as road vehicle accident rescue, urban illegal vehicle handling, and natural disaster rescue and rescue are also rapidly increasing. At the same time, the roadside assistance industry, which is the aftermarket of automobiles, is gradually being valued and has developed rapidly. According to relevant data, during the operation of road rescue equipment, there are often situations where road rescue equipment cannot perform effective rescue. One of them is that the attached winch cannot achieve effective pulling and lifting operations. The reason is tha...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/70G08B21/18
Inventor 李旭李晨晓赵婉婷
Owner SOUTHEAST UNIV