CN1920495A - Digital trip water level point gauge - Google Patents
Digital trip water level point gauge Download PDFInfo
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- CN1920495A CN1920495A CN 200610113116 CN200610113116A CN1920495A CN 1920495 A CN1920495 A CN 1920495A CN 200610113116 CN200610113116 CN 200610113116 CN 200610113116 A CN200610113116 A CN 200610113116A CN 1920495 A CN1920495 A CN 1920495A
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- bar code
- water level
- bar
- scale
- testing
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Abstract
The invention relates to a digit bar code water level meter, wherein it is characterized in that: it comprises testing cart, bar code reader, testing needle, support rod, screw fixer, bar code scale, track, bar code scanner, and image processor; the bar code reader is fixed on the testing cart, via rotating fixer, to move the bar code scale; the testing needle and the bar code scale are connected; the testing cart moves on the track; one end of bar code scanner is connected to the optical path of scale, and another end is connected to the image processor; it is relative to the cursor window, to move with the window to generate bar code unit on the scale. The invention can improve the testing efficiency and improve the accuracy.
Description
Technical field
The present invention relates to a kind of digital trip water level point gauge of measuring water level, belong to the hydraulic engineering technical field.
Background technology
1, needle water level gauge background technology
Needle water level gauge is to be used for measuring water level, be chaining pin formula water level gauge again, be to use the most general a kind of instrument in hydraulic engineering and the research, chaining pin is made up of sleeve and measuring staff, and sleeve is fixedly mounted on the bearing, and chaining pin can move up and down in sleeve, other has a kind of fine motion structure, make it make trace by means of the fine motion gear and move, aciculiform or hook-type are made by end in contact water surface place under the chaining pin point, and having least count on the other sleeve of measuring staff is the vernier scale of 0.1mm (or 0.05mm).Be characterized in the measuring accuracy height, the scope of measuring is little, be mainly used in the level measuring that data accuracy is had relatively high expectations, the level measuring that is used for hydraulic test and model test is more, and needle water level gauge can also further be generalized among the relevant measuring technique of elevation such as topographical surveying.But among hydraulic engineering and the model test, because need the data point of observation more, manually reading wastes time and energy at the scene.And manual read's error rate of fetching data is higher, and the data of measurement need manual record and because the needs of handling are input to electronic equipments such as computing machine, and are too many from the intermediate link that collects application, also cause easily making a mistake, and cause obtaining wrong result.
2, barcode encoding
Barcode technology is born in the forties in 20th century, but obtain practical application and in proper order development still in the period of nearly 20.At present, barcode technology is widely used in American-European, Japan, and popularizes rapidly all over the world, and its applications exploiting is also in continuous expansion.
Bar code as a kind of pattern recognition technique compare with other recognition technologies have simple, gather soon, the Information Monitoring amount is big, reliability height, characteristics such as equipment is simple, cost is low.
Bar code symbol is by the width difference, the bar that incidence is different, the empty symbol that combines according to certain coding rule.Common bar code is that secret note and white blind printing system form, because secret note is minimum to the emissivity of light, and white empty the highest to the emissivity of light.When illumination is mapped on the bar code symbol, secret note and white empty produce stronger contrast, barcode scanner utilizes secret note and white sky that the incidence of light different are read barcode data just.
Present barcode technology and domesticly very ripe be applied to commercial wholesale and retail and distribution, industrial manufacturing, financial service, government administration, building and real estate, health care, education and training, media publication and fields such as information service, communications and transportation, tourism and entertainment service obtain using more widely.
But bar code is applied to hydraulic engineering, especially is applied to the basic test and the model investigation field of Hydraulic Engineering Survey, present stage does not also have.
Summary of the invention
The objective of the invention is to realize the robotization of hydraulic engineering and corresponding model test measuring technique, improve measuring accuracy in order to improve the level measuring technology.Based on above-mentioned target, content of the present invention is to utilize barcode technology to realize the hydraulic engineering linear measure longimetry of robotization, and the new coded system of a cover, is the new method of measurement technology in the hydraulic engineering.
A kind of digital trip water level point gauge that the present invention proposes, this chaining pin contains the vernier window, it is characterized in that: also contain measuring car (1), bar code reader (2), chaining pin (3), support bar (4), spiral fixing device (5), bar code rule (6), guide rail (7), bar-code scanner (8), presentation manager (9); Described bar code reader (2) is fixed on the measuring car (1), comes mobile bar code rule (6) by rotary fixing device (5), is fixedly connected between described chaining pin (3) and the bar code rule (6); Described measuring car (1) is gone up at guide rail (7) and is moved; Described bar-code scanner (8) one ends are connected with bar code rule (6) light path, and the other end is connected with presentation manager (9); Described corresponding to the vernier window, along with moving of vernier window, go up generation bar code information unit at bar code rule (6).
Use the present invention can obtain the raising of efficiency of measurement and precision, and can realize the digitizing of linear measure longimetry and robotization, minimizing working strength.
Description of drawings
Fig. 1 is a chaining pin synoptic diagram of the present invention.
Fig. 2 is a coded system synoptic diagram of the present invention.
Fig. 3 reads district's vertical view for bar code of the present invention, and the line segment that wherein connects between bar code rule and the scanner is incident light and reflected light signal.
Embodiment
Component names in Fig. 1～3 is: 1-measuring car, 2-bar code reader, 3-chaining pin, 4-support bar, 5-spiral fixing device, 6-bar code rule, 7-guide rail, 8-bar-code scanner, 9-computer.
Bar code reader 2 is fixed on the measuring car 1, moves fixedly bar code rule 6 by rotary fixing device 5, is fixedly connected between chaining pin 3 and the bar code rule 6.
Make the bar code that is fit to the probe use according to new barcode encoding mode, adopt ripe electro-optical system and pattern recognition system to read the interior bar code of metal frame, draw actual length value by decoding, carry out preservation and processing by computing machine 9 then length data.
The linear measure longimetry scope of general needle water level gauge is 50 centimetres, 1 centimetre of vernier window, 0.1 millimeter of measuring accuracy.New needle water level gauge measuring staff measurement range length still is 50 centimetres, 1 centimetre of vernier window.
The linear measure longimetry coded system adopts black bar code, white bar code alternate; Black bar code reference position is positioned at the integer-bit place; The width linearity of each black bar code increases gradually.Particularly, 0 to 1 centimetre of interval white bar code that adopts 1 centimetre, adopt one of 0.2 mm wide black bar code 1 centimetre of position, next adopt one of 0.3 mm wide black bar code 2 centimetres of positions, adopt one of 5.1 mm wide black bar code to 50 centimeters by that analogy, constitute the coded system of the whole bar shaped of a cover like this.
Corresponding to 1 centimetre of vernier window, along with moving of vernier window, on the measuring staff of 50 centimeter length, produce 5000 bar code information unit, the bar code information of each unit is all different, each unit information is corresponding to a reading, then this cover measuring system measuring accuracy is 50/5000=0.01 centimetre, and is identical with present employing chaining pin precision.
Bar code reads optical system, mimic channel and the code translator etc. that adopt present technology maturation with storage system.Infrared or the laser that reads employing requires to differentiate 0.1 millimeter black and gets final product.
Claims (1)
1, a kind of digital trip water level point gauge, this chaining pin contains the vernier window, it is characterized in that: also contain measuring car (1), bar code reader (2), chaining pin (3), support bar (4), spiral fixing device (5), bar code rule (6), guide rail (7), bar-code scanner (8), presentation manager (9); Described bar code reader (2) is fixed on the measuring car (1), comes mobile bar code rule (6) by rotary fixing device (5), is fixedly connected between described chaining pin (3) and the bar code rule (6); Described measuring car (1) is gone up at guide rail (7) and is moved; Described bar-code scanner (8) one ends are connected with bar code rule (6) light path, and the other end is connected with presentation manager (9); Described corresponding to the vernier window, along with moving of vernier window, go up generation bar code information unit at bar code rule (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101131161A CN100395522C (en) | 2006-09-15 | 2006-09-15 | Digital trip water level point gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101131161A CN100395522C (en) | 2006-09-15 | 2006-09-15 | Digital trip water level point gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1920495A true CN1920495A (en) | 2007-02-28 |
| CN100395522C CN100395522C (en) | 2008-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101131161A Expired - Fee Related CN100395522C (en) | 2006-09-15 | 2006-09-15 | Digital trip water level point gauge |
Country Status (1)
| Country | Link |
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| CN (1) | CN100395522C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651143A (en) * | 2015-12-28 | 2016-06-08 | 中国水产科学研究院南海水产研究所 | Fish's body length measuring device |
| CN110940321A (en) * | 2019-11-28 | 2020-03-31 | 国网福建省电力有限公司 | Novel flow measuring instrument for weir and using method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259124A (en) * | 1985-05-14 | 1986-11-17 | Fujita Corp | Digital slide calipers level |
| JPH10185657A (en) * | 1996-12-19 | 1998-07-14 | Meiriyou Denshi Kk | Method of measuring fluctuating material upper level, and measuring device therefor |
| JP2001027562A (en) * | 1999-05-10 | 2001-01-30 | Toshiyuki Kawai | Bathometer |
| CN2533453Y (en) * | 2002-03-20 | 2003-01-29 | 武汉大学 | Water level sensor |
| CN2716815Y (en) * | 2004-08-19 | 2005-08-10 | 水利部交通部电力工业部南京水利科学研究院 | Capacitor grid type nilometer |
-
2006
- 2006-09-15 CN CNB2006101131161A patent/CN100395522C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651143A (en) * | 2015-12-28 | 2016-06-08 | 中国水产科学研究院南海水产研究所 | Fish's body length measuring device |
| CN110940321A (en) * | 2019-11-28 | 2020-03-31 | 国网福建省电力有限公司 | Novel flow measuring instrument for weir and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100395522C (en) | 2008-06-18 |
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Granted publication date: 20080618 Termination date: 20190915 |
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| CF01 | Termination of patent right due to non-payment of annual fee |