CN201546094U

CN201546094U - Fabric detection device

Info

Publication number: CN201546094U
Application number: CN2009202098367U
Authority: CN
Inventors: 张敏; 侯先斌
Original assignee: SHANGHAI XIANGWANGRUI ELECTRONICS CO Ltd
Current assignee: Shanghai Jingcai Environmental Protection Technology Co., Ltd.
Priority date: 2009-09-22
Filing date: 2009-09-22
Publication date: 2010-08-11
Anticipated expiration: 2019-09-22

Abstract

The utility model relates to a fabric detection device which comprises a fabric, wherein a light source is arranged above the fabric; a lens and a linear array CCD board for receiving the lens are also arranged above the fabric; the linear array CCD board is connected with an image acquiring and analyzing processing system; and the image acquiring and analyzing processing system is connected with a loom control box. The fabric detection device has the advantages that an image comparison algorithm is utilized to detect flaws of the fabric so that the monitoring precision is higher; and the speeds of acquiring the image and discharging the fabric are synchronous and the whole line is simultaneously acquired and does not need a probe to move left and right, thus, the fabric detecting efficiency is greatly improved.

Description

The checkout equipment of weaving cotton cloth

Technical field

The utility model relates to a kind of checkout equipment of weaving cotton cloth, and relates in particular to a kind of equipment that can detect weave cotton cloth broken string, thread cast-off.

Background technology

Known patent has been announced some checkout equipments of weaving cotton cloth, and in these equipment, light-sensitive element receives from the light source ejaculation and by the light of weaving cotton cloth and reflecting, and light-sensitive element is judged based on the intensity of the light quantity signals converted that receives.By the intensity of this signal of telecommunication is compared with the reference value of establishing,, weave cotton cloth to defective if the value of the signal of telecommunication less than reference value, illustrates that reflection of light is under some influence herein.

But there is certain defective in this detection mode.For weaving cotton cloth of grid class, the trimmed book that the good cloth of quality reflects in grid is just more weak, for thicker cloth, catoptrical intensity effect neither be very big under the defective situation, so just makes this equipment can only reach the degree of accuracy about 30% for the defects detection of weaving cotton cloth.In addition, because that the detection probe of this equipment scans an other end consumed time from an end of weaving cotton cloth is long, the detection efficiency of weaving cotton cloth also there is certain problem.

Summary of the invention

The utility model technical issues that need to address have provided a kind of checkout equipment of weaving cotton cloth, and are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: one weaves cotton cloth; Above described weaving cotton cloth, settle a light source; Above described weaving cotton cloth, also settle a camera lens and to receive the line array CCD plate of camera lens; Described line array CCD plate connects an image collection and analysis process system; Described image collection links to each other with the loom control cabinet with analysis process system.

Compared with prior art, the beneficial effects of the utility model are: utilize the image alignment algorithm to detect the flaw of weaving cotton cloth, monitoring accuracy is higher; Owing to gather image and weave cotton cloth out the speed synchronization of cloth, and be that sliver is gathered simultaneously, do not need probe from move left and right, make the efficient that detects of weaving cotton cloth is improved greatly.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 adopts a plurality of the utility model once to gather the structural representation of the whole breadth of weaving cotton cloth;

Fig. 3 is that to adopt a plurality of models of prior art be that the mode that the CCD of UPD8880 works is simultaneously once gathered the whole breadth CCD arrangement architecture schematic diagram of weaving cotton cloth.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

As seen from Figure 1: the utility model comprises: one weaves cotton cloth 4; Settle a light source 3 above 4 described weaving cotton cloth; Also settle above 4 a camera lens 2 and to receive the line array CCD plate 1 of camera lens 2 described weaving cotton cloth; Described line array CCD plate 1 connects an image collection and analysis process system 5; Described image collection links to each other with loom control cabinet 6 with analysis process system 5;

Described light source 3 is the monochromatic source or the white light source of red, green, blue look.

The position of light source and the consideration of angle are to guarantee the weaved cotton cloth reflection and received by CCD of strong as far as possible light, and also will try one's best and not influence the work of loom in the position of light source simultaneously.Camera lens 2 guarantees to weave cotton cloth to be imaged on the CCD, and the distortion of the margin and center of requirement and the equidirectional axis of CCD linear array is as far as possible little.

The line array CCD of prior art is the imageing sensor (as shown in Figure 3) that present situation is arranged, each red, green, blue information of gathering a line, the frequency of line array CCD data acquisition can reach 8MHz, be that per second can transmit 8,000,000 data, mostly be most in 100,000 and gather a line data volume, so used time of line of every collection is Millisecond.Simultaneously, gathered after the line, weaved cotton cloth and move to next position, the information that gather this moment is exactly the red, green, blue information of a line of next position.Entire equipment is equivalent to a large-scale paper feeding scanner, for weaving cotton cloth than broad, simultaneously again in order to reach than higher resolution ratio, taking with a plurality of models in embodiment is the data (as shown in Figure 2) that mode that the CCD of UPD8880 works is simultaneously once gathered the whole line of breadth of weaving cotton cloth, avoid moving of sensor like this, guaranteed the efficient of IMAQ.

The utility model provides a kind of device of weaving cotton cloth synchronously and detecting, and will weave cotton cloth by the utility model camera lens is imaged on the line array CCD, and along with moving of weaving cotton cloth, the image of weaving cotton cloth is caught in regular turn by line array CCD.CPU carries out computational analysis to the image that CCD collects, and compares with the standard masterplate of weaving cotton cloth, and the image difference situation that obtains can guarantee enough accuracy of detection.

The course of work of the present utility model is: the light that light source 3 sends is through being received by CCD plate 1 through camera lens 2 imagings after the reflection of weaving cotton cloth.Among being kept in motion owing to weave cotton cloth, the continuous acquisition of CCD plate just can make image collection and analysis process system 5 obtain the weave cotton cloth image of effect of a width of cloth.

For example: can find that by image recognition algorithm the image medium position has lacked single line when weaving cotton cloth.In case system draws this " unusually " conclusion, image collection and analysis process system will notify the loom control cabinet to shut down so that deal with problems.

Claims

1. checkout equipment of weaving cotton cloth, comprising: one weaves cotton cloth; It is characterized in that: above described weaving cotton cloth, settle a light source; Above described weaving cotton cloth, also settle a camera lens and to receive the line array CCD plate of camera lens; Described line array CCD plate connects an image collection and analysis process system; Described image collection links to each other with the loom control cabinet with analysis process system.

2. the checkout equipment of weaving cotton cloth according to claim 1 is characterized in that: described light source 3 is the monochromatic source or the white light source of red, green, blue look.