CN1424700A - Automatic counting bar material systems - Google Patents
Automatic counting bar material systems Download PDFInfo
- Publication number
- CN1424700A CN1424700A CN 03100566 CN03100566A CN1424700A CN 1424700 A CN1424700 A CN 1424700A CN 03100566 CN03100566 CN 03100566 CN 03100566 A CN03100566 A CN 03100566A CN 1424700 A CN1424700 A CN 1424700A
- Authority
- CN
- China
- Prior art keywords
- bar
- fluorescent tube
- counting
- light
- ccd camera
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
An automatic counter system for rod material features use of linear-array CCD camera and image processing techinque. A non-strobe fluorescent lamp is vertically installed between two chains. Said CCD camera is installed above said fluorescent lamp to make them in a vertical plane. The rods pass through on the fluorescent lamp, their number can be counted according to the brightness variation.
Description
Affiliated technical field:
The present invention relates to the optical, mechanical and electronic integration field, be used for the production line of bar of iron and steel enterprise.
Background technology:
Therefore domestic enterprise's mode that bundling is propped up in general employing surely to bar must be counted bar before bundling accurately, inaccurately will cause tremendous loss to enterprise if count.Iron and Steel Enterprises in China mainly adopts photoelectric tube and artificial dual mode to realize the automatic counting of bar at present.
The photoelectric tube counting mode makes full use of the photovoltaic effect of photoelectric tube, and promptly photoelectric tube can come the size variation of reflected luminous flux by the Strength Changes of photocurrent.Light source and photoelectric tube are respectively placed on the both sides up and down of bar in the scene, and mobile bar can change the size of photoelectric tube luminous flux, thereby cause the photocurrent intensity of photoelectric tube to change.By analyzing the situation of change of photoelectric tube photocurrent intensity, just can judge number through the bar of photoelectric tube.
But there are two shortcomings in the photoelectric tube counting mode:
1. have relatively high expectations to the sensitivity of photoelectric tube in the scene, but photoelectric tube is easily aging, and therefore its sensitivity also can be seriously influenced, and is subjected to strong illumination also can reduce the sensitivity of photoelectric tube greatly for a long time.All there is response lag in various degree in the photoelectric tube that enterprise uses at present, thus the accuracy of influence counting.
2. on-the-spot general adopt single photoelectric tube to count,, often produce few meter, leak the phenomenon of counting if when bar occurs overlapping situation on the photoelectric tube counting position.And on-the-spot bar overlapping phenomenon occurs through regular meeting, causes photoelectric tube counting accuracy rate not high.
Artificial counting is counted with vision by the operative employee exactly, and the accuracy rate of this method of counting is low, and speed is slow, especially at the radical of a collection of bar 40 when above, the error rate that artificial counting occurs is very serious.
Summary of the invention:
The invention provides a kind of automatic Counting System of Steel Bars, this system not only possesses the advantage highly sensitive, that response speed is fast, and can count accurately overlapping bar, thereby overcome the deficiency of photoelectric tube counting and artificial counting, realize bar is counted accurately automatically.
Bar is transmitted by conveyer chain before entering the collection platform, and conveyer chain is made up of many chains, and the bar frame is above chain.
The technical solution adopted in the present invention is: at the fixing a plurality of fluorescent tubes in the bottom of bar conveyer chain, every fluorescent tube is installed between two chains, and vertical with the transmission direction of driving-chain, the length of fluorescent tube and quantity are determined according to the actual conditions of production line.Fluorescent tube is by powered by direct current, to eliminate its stroboscopic phenomenon.One linear array CCD camera is installed above every fluorescent tube, and video camera and fluorescent tube are on a perpendicular, and its sweep length is greater than the length of fluorescent tube.Video camera is fixed on the bracing frame, and bracing frame is across on driving-chain.
Camera acquisition to image send computing machine to by data line, and handle by computing machine.During use, with lamp tube starting, video camera is with above frequency sweeping fluorescent tube 1000 line/seconds.If there is not the bar process, so camera acquisition to image should be bright fully., can block fluorescent tube at its through in fluorescent tube so, thereby make video camera adopt the light that sends less than fluorescent tube through driving-chain as bar, therefore camera acquisition to image in the variation of light and shade just can appear.If there are two bars to pass through simultaneously, light just can be appeared in slit between them so, have any different through the light and shade variation of out-of-date generation with a bar like this, therefore can change, thereby calculate the actual radical of bar through fluorescent tube by the light and shade of writing the software analysis image.Unless two bars are superimposed on the fluorescent tube length direction (this situation exists hardly) fully, pass through otherwise just have light between them, and this part light will be collected by video camera, thereby realization is to the accurate counting of overlapping bar.By display, operating personnel can obtain the accurate number of bar in real time, and determine next step operation according to current number.
The invention has the beneficial effects as follows, though bar has overlapping on driving-chain, but two bars can not be superimposed fully in the long distance scope of (fluorescent tube length), linear array CCD camera can accurately detect the slight gap between bar, thereby effectively solves the accurate counting problem to overlapping bar.The response speed of simultaneity factor is fast, can satisfy on-the-spot real-time counting requirement.
Description of drawings: the present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the on-the-spot synoptic diagram of the embodiment of the invention.
Fig. 2 is a system of the present invention composition diagram.
Fig. 3 is a program flow diagram of the present invention.
1 bracing frame among the figure, 2 linear array CCD cameras, the data line of 3 video cameras, control line and power lead, 4 computing machines (built-in image pick-up card), 5 light sources, 6 conveyer chains, 7 bars.
Embodiment:
According to Fig. 1 and Fig. 2 system is installed.At first across a firm bracing frame 1 is installed on the conveyer chain 6, linear array CCD camera 2 is installed on bracing frame 1, fluorescent tube 5 is installed in conveyer chain 6 bottoms, the position and the angle of regulating video camera 2 make video camera 2 and fluorescent tube 5 in same perpendicular.Video camera links to each other with computing machine 4 with control line 3 by data line.
After system installs, light fluorescent tube 5, and open video camera 2, observe the image that video camera 2 is gathered by computing machine 4.Regulate the position and the angle of video camera 2, to guarantee that video camera 2 collects the light that fluorescent tube 5 sends fully.
System software designs according to the process flow diagram of figure three, and software comprises three major parts:
1. open up image data buffer, deposit from camera acquisition to view data.
2. the view data of buffer zone is carried out binary conversion treatment, if promptly gray values of pixel points is greater than binary-state threshold, this gray values of pixel points becomes 255 after the binaryzation so, otherwise this gray values of pixel points becomes 0.Binaryzation can be given prominence to bar and the difference of background light source on gray-scale value, is convenient to discern bar and to its counting.
3. in the camera-scanning width range, calculate the gray scale transition situation of each row pixel, comprise that gray values of pixel points becomes 255 and become 0 from 255 from 0.Maximum transition value is exactly the number of the bar of process light source divided by 2, if aliquant, just the result is added 0.5.
Software is mainly realized three functions: counting beginning, counting are put 0, are counted and finish.Operating personnel click " counting beginning " button, and system carries out the online in real time counting according to counting algorithm to the bar of process, and the bar number is fed back to operating personnel by user interface.When bar number during near the bundling number required, operating personnel click " counting finishes " button, and system can stop tally function automatically, and after bundling finishes by the time, operating personnel will click " counting beginning " button once more, and system just carries out online counting again." counting puts 0 " function is used for current count results value is changed to 0.
Claims (1)
1. automatic Counting System of Steel Bars, it is characterized in that: the fluorescent tube that will not have stroboscopic is installed between two chains, vertical with chain, and can allow bar pass through, linear array CCD camera is installed in the fluorescent tube top, with fluorescent tube on a perpendicular, linear array CCD camera is gathered the light that fluorescent tube sends, the light and shade that produces in image when utilizing bar through fluorescent tube changes the bar number that calculates through fluorescent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100566 CN1424700A (en) | 2003-01-20 | 2003-01-20 | Automatic counting bar material systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100566 CN1424700A (en) | 2003-01-20 | 2003-01-20 | Automatic counting bar material systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1424700A true CN1424700A (en) | 2003-06-18 |
Family
ID=4789851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03100566 Pending CN1424700A (en) | 2003-01-20 | 2003-01-20 | Automatic counting bar material systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1424700A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486391B (en) * | 2008-01-18 | 2010-12-15 | 北京光电技术研究所 | Automatic separation method and apparatus for metallic rod |
| CN102034132A (en) * | 2010-11-17 | 2011-04-27 | 首雷光电科技(厦门)有限公司 | Method for counting light-emitting diode (LED) chips |
| CN101635035B (en) * | 2009-06-18 | 2011-11-02 | 威友光电(苏州)有限公司 | Counting method and counting device of U-shaped lamp tubes |
| CN102700784A (en) * | 2012-05-24 | 2012-10-03 | 上海理工大学 | Device for accurately counting transparent capsules and using method thereof |
| CN102849275A (en) * | 2012-09-29 | 2013-01-02 | 天津工业大学 | Online counting steel distribution device for bars |
| CN102999451A (en) * | 2012-11-13 | 2013-03-27 | 上海交通大学 | Steel counting system and steel counting method |
| CN104443585A (en) * | 2014-10-28 | 2015-03-25 | 山东钢铁股份有限公司 | Bar rolled piece counting and bundle separating method and device |
| CN105158815A (en) * | 2015-10-15 | 2015-12-16 | 西比（湖州）通信科技有限公司 | Porcelain bushing number automatic counting device |
| CN105718989A (en) * | 2014-11-30 | 2016-06-29 | 中国科学院沈阳自动化研究所 | Bar counting method based on machine vision |
| CN109712180A (en) * | 2019-01-19 | 2019-05-03 | 北京伟景智能科技有限公司 | A kind of reinforcing bar method of counting |
| CN111824523A (en) * | 2019-05-28 | 2020-10-27 | 北京伟景智能科技有限公司 | Reinforcing steel bar counting, packaging and detecting system and method based on line laser |
-
2003
- 2003-01-20 CN CN 03100566 patent/CN1424700A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486391B (en) * | 2008-01-18 | 2010-12-15 | 北京光电技术研究所 | Automatic separation method and apparatus for metallic rod |
| CN101635035B (en) * | 2009-06-18 | 2011-11-02 | 威友光电(苏州)有限公司 | Counting method and counting device of U-shaped lamp tubes |
| CN102034132A (en) * | 2010-11-17 | 2011-04-27 | 首雷光电科技(厦门)有限公司 | Method for counting light-emitting diode (LED) chips |
| CN102700784B (en) * | 2012-05-24 | 2014-10-29 | 上海理工大学 | Device for accurately counting transparent capsules and using method thereof |
| CN102700784A (en) * | 2012-05-24 | 2012-10-03 | 上海理工大学 | Device for accurately counting transparent capsules and using method thereof |
| CN102849275A (en) * | 2012-09-29 | 2013-01-02 | 天津工业大学 | Online counting steel distribution device for bars |
| CN102999451A (en) * | 2012-11-13 | 2013-03-27 | 上海交通大学 | Steel counting system and steel counting method |
| CN102999451B (en) * | 2012-11-13 | 2015-12-16 | 上海交通大学 | Steel number system and method |
| CN104443585A (en) * | 2014-10-28 | 2015-03-25 | 山东钢铁股份有限公司 | Bar rolled piece counting and bundle separating method and device |
| CN104443585B (en) * | 2014-10-28 | 2016-10-05 | 山东钢铁股份有限公司 | A kind of bar rolled piece counting point bundle method and device |
| CN105718989A (en) * | 2014-11-30 | 2016-06-29 | 中国科学院沈阳自动化研究所 | Bar counting method based on machine vision |
| CN105158815A (en) * | 2015-10-15 | 2015-12-16 | 西比（湖州）通信科技有限公司 | Porcelain bushing number automatic counting device |
| CN109712180A (en) * | 2019-01-19 | 2019-05-03 | 北京伟景智能科技有限公司 | A kind of reinforcing bar method of counting |
| CN111824523A (en) * | 2019-05-28 | 2020-10-27 | 北京伟景智能科技有限公司 | Reinforcing steel bar counting, packaging and detecting system and method based on line laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100535647C (en) | On-line detection device of defects in float glass based on machine vision | |
| CN102967606B (en) | Textile machine fabric defect visual inspection system | |
| CN1424700A (en) | Automatic counting bar material systems | |
| CN1313895C (en) | Method and system for controlling coagulant filling rate by on-line measuring flocculate sedimentation speed | |
| CN110487821A (en) | A kind of clear sheet defect detecting device and its detection method based on machine vision | |
| CN108982514A (en) | A kind of bionical vision detection system of casting surface defect | |
| CN108760747A (en) | A kind of 3D printing model surface defect visible detection method | |
| CN202770781U (en) | Fabric defect online detection device based on machine vision | |
| CN102778414B (en) | Machine vision-based fabric physical property detection method and device | |
| CN103785622B (en) | Based on the part method for sorting of the part sorting equipment of machine vision | |
| CN206772850U (en) | CCD lines for Intelligent Measurement surface defects of products sweep camera system | |
| CN1624460A (en) | On-line datecting device for printed matter quality | |
| CN104034637B (en) | Based on the online quality inspection device of diamond wire particle of machine vision | |
| CN102074179B (en) | LED display screen point-by-point correction system and LED display screen point-by-point correction method | |
| CN104034638A (en) | Diamond wire particle online quality inspection method based on machine vision | |
| CN102519981A (en) | Online detection system for PVC (polyvinyl chloride) building material surface quality | |
| CN107957245A (en) | Engine link dimension measuring device and its measuring method based on machine vision | |
| CN109596633A (en) | Light guide plate defect detection equipment and detection method | |
| CN2923067Y (en) | Multi-path fruit vision grading picture collector | |
| CN202074946U (en) | Cigarette case appearance detecting device | |
| CN114527141A (en) | Shaving board surface defect collection system | |
| CN104297250A (en) | Yarn hairiness detection device | |
| CN2774657Y (en) | Raisin sorter | |
| CN117664485B (en) | Full-automatic vision inspection machine operation control system based on cloud platform | |
| CN208513101U (en) | A kind of two-sided vision-based detection mango grading plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |