CN102128603A - Irregular area measuring method and device - Google Patents
Irregular area measuring method and device Download PDFInfo
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- CN102128603A CN102128603A CN2010106015110A CN201010601511A CN102128603A CN 102128603 A CN102128603 A CN 102128603A CN 2010106015110 A CN2010106015110 A CN 2010106015110A CN 201010601511 A CN201010601511 A CN 201010601511A CN 102128603 A CN102128603 A CN 102128603A
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Abstract
The invention relates to an irregular area measuring method and device. The irregular area measuring method is characterized by comprising the following steps of: relatively moving an irregular measured object along the surface of a T-shaped photoelectric measuring device: firstly, pulling along a vertical staff direction from a horizontal staff direction of the measuring device, and when the measured object shields a first photoelectric sensor of the vertical staff, reading the number A1 of shielded photoelectric sensors on the horizontal staff by a microprocessor, wherein the area of a measured region is shown in the expression as follows: S1=A1*lx*ly, wherein lx is the distance between the photoelectric sensors of the horizontal staff, and ly is the distance between the photoelectric sensors of the vertical staff; and displaying the measuring value until the measured objected is departed from the horizontal staff. Compared with the prior art, the irregular area measuring method and device have the beneficial effects that: (1) photoelectric receiving modules are distributed along a T shape, and the cost of the device is low; (2) static measurement is replaced by measurement in the moving process, no transmission parts are provided, and the reliability is higher; (3) the device is convenient to carry and can be used for measuring space objects such as leaves of plants and the like; (4) any series connection and expansion can be modularized in the length and width directions; and (5) the measuring precision can be improved by shortening the distance between the photoelectric sensors.
Description
Technical field
The present invention relates to the area measurement technical field, particularly a kind of irregular area measurement method and device.
Background technology
There is application in irregular area measurement a lot of fields in life, as the gardening research field, need measure the plant leaf area,, estimate the proterties of plant to sum up the growth rhythm of plant, be that leaf is taken in the past, the profile of leaf is retouched on coordinate paper, drawn the area of leaf by the area of sub-box in the profile on the coordinates computed paper, this method is calculated length consuming time, plant there is damage, can not frequently uses.
For another leather industry, the leather pole of figure of animal is irregular, there is not repeatability, its price is relevant with area, therefore must measure every block leather with price, because leather industry is with a long history, development rapidly, for realizing the quick measurement of leather area, people have attempted a lot of methods, the photovoltaic array method are arranged, camera method, the ccd image method, duplicate pairing comparision etc., the defective of above-mentioned several method is: all adopt the static measurement method, measured object need be placed on the measurement mechanism, measurement mechanism gear train complexity, need the figure contrast, figure is corrected, processing procedures such as gray scale processing, ubiquity cost height, accuracy of measurement is low, measuring speed waits shortcoming slowly, presses for a kind of with low cost in the production, can realize the measurement mechanism of irregular area measurement fast.
Summary of the invention
The purpose of this invention is to provide a kind of irregular area measurement method and device, overcome the deficiencies in the prior art, realize the measurement of area in irregular measured object moves along the measurement mechanism surface, under the prerequisite that guarantees measuring accuracy, the measurement mechanism cost is lower.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of irregular area measurement method relatively moves irregular measured object along T shape photoelectric measuring device surface, its width dimensions is read by crossfoot, length dimension is read by linear foot, microprocessor calculates and the accumulative total unit area, finishes the measurement of this irregular area, and its operation steps is as follows:
1) measured object is begun to keep measured object and chi face to fit along the pulling of linear foot direction from measurement mechanism crossfoot direction as far as possible;
2) when measured object covers first photoelectric sensor of linear foot, microprocessor reads on the crossfoot by shading electric transducer quantity A1, its width dimensions is A1 * lx, wherein lx is a photoelectric sensor distance values on the crossfoot, then tested region area is S1=A1 * lx * ly, and wherein ly is a photoelectric sensor distance values on the linear foot;
3) when measured object covers second photoelectric sensor of linear foot, microprocessor reads on the crossfoot by shading electric transducer quantity A2, and its width dimensions is A2 * lx, and tested region area is S2=S1+ (A2 * lx * ly);
4) so constantly spur measured object, leave crossfoot, measure and finish up to measured object;
5) microprocessor display goes out area value.
A kind of irregular area measurement device, comprise crossfoot, linear foot, microprocessor, digital display screen, crossfoot and linear foot are that landing tee is put, crossfoot and linear foot are respectively a photoelectricity receiver module or an above photoelectricity receiver module is in series from beginning to end, and microprocessor is connected with digital display screen with linear foot with crossfoot with power lead by the serial communication line respectively.
Described photoelectricity receiver module comprises cpu chip and a plurality of photoelectric sensor, and cpu chip is formed receiving loop with each photoelectric sensor respectively.
Described photoelectric sensor is phototriode or linear array formula CCD light activated element.
Described photoelectricity receiver module adopts modular design, by serial communication line and power lead expansion.
Compared with prior art, the invention has the beneficial effects as follows: 1) the photoelectricity receiver module is put along landing tee, needn't arranged in arrays, and simplification device is saved cost greatly; 2) kinetic measurement in moving substitutes present static measurement, and is simple in structure, do not have driving member, and reliability is higher; 3) structure is light, is easy to carry, and can measure space objects such as plant living body blade; 4) on length and Width, need only connect serial communication line and power lead can modularization expand arbitrarily, is suitable for various sizes and measures; 5) by shortening the spacing of photoelectric sensor, can improve measuring accuracy.
Description of drawings
Fig. 1 is a kind of irregular area measurement device example structure synoptic diagram of the present invention;
Fig. 2 is a photoelectricity receiver module Facad structure synoptic diagram;
Fig. 3 is a photoelectricity receiver module reverse side structural representation;
Fig. 4 is a photoelectricity receiver module circuit diagram.
Among the figure: 1-crossfoot 2-linear foot 3-microprocessor 4-digital display screen 5-photoelectricity receiver module 6-photoelectricity receiver module 7-phototriode 8-CPU chip 9-power pins 10-communication pin 11-communication pin 12-ground wire pin 13-power pins 14-communication pin 15-communication pin 16-ground wire pin 17-cover plate 18-measured object
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further:
See Fig. 1, a kind of irregular area measurement device example structure synoptic diagram of the present invention, comprise crossfoot 1, linear foot 2, microprocessor 3, digital display screen 4, crossfoot 1 is put for landing tee with linear foot 2, crossfoot 1 is that four photoelectricity receiver modules 5 join end to end and form, linear foot 2 is that four photoelectricity receiver modules 6 join end to end and form, and microprocessor 3 all is connected with power lead by the serial communication line with the photoelectricity receiver module 5 and the digital display screen 4 of crossfoot 1 and linear foot 2 respectively.Digital display screen 4 is the LED charactron, and microprocessor 3 relies on the direct-current switch power supply power supply.Photoelectricity receiver module 5 and photoelectricity receiver module 6 are fixed on the opaque cover plate 17, and corresponding phototriode 7 positions are drilled with aperture on the cover plate 17, use for entering light.
6) see Fig. 2, Fig. 3, Fig. 4, each photoelectricity receiver module 5 and photoelectricity receiver module 6 respectively comprise 8 phototriodes 7 and a cpu chip 8, cpu chip 8 is formed receiving loop with 8 phototriodes 7 respectively, after phototriode 7 tops are blocked, cpu chip 8 respective pin receive a high level, the number of pin of programmed counting high level.The equidistant phototriode 7 of 5mm is installed in the front of circuit board, i.e. T0~T7, and cpu chip 8 is installed on the reverse side of circuit board.The photoelectricity receiver module adopts modular design, the one end be provided with power pins 9, communication pin 10, communication pin 11, wire pin 12, the other end be provided with power pins 13, communication pin 14, communication pin 15, wire pin 16, connecting from beginning to end during combination connects by serial communication line and power lead correspondence, can expand the length that needs arbitrarily.
See Fig. 1, the operating process of measuring method of the present invention is: open microprocessor 3 power switches earlier, at this moment digital display screen 4 shows to be " 0 " entirely, measured object 18 is placed on the cover plate 17, irregular measured object is slipped over along T shape photoelectric measuring device surface, its width dimensions is read by crossfoot 1, length dimension is read by linear foot 2, microprocessor calculates and the accumulative total unit area, finishes the measurement of this irregular area, and its operation steps is as follows:
1) measured object 18 is begun to keep measured object and chi face to fit along the pulling of linear foot 2 directions from dip stick crossfoot 1 direction as far as possible;
2) when measured object covers linear foot 2 first phototriodes, microprocessor reads on the crossfoot 1 by shading electricity triode quantity 8, its width dimensions is 8 * 5mm, the phototriode distance values is 5mm on the crossfoot, the phototriode distance values also is 5mm on the linear foot, and tested region area is S1=8 * 5 * 5=200mm
2
3) when measured object covers 2 second phototriodes of linear foot, microprocessor reads on the crossfoot by shading electricity triode quantity 13, and its width dimensions is 13 * 5mm, and tested region area is S2=200+ (13 * 5 * 5)=525mm
2
4) so constantly spur measured object, leave crossfoot up to measured object, measure and finish, measured value and pulling speed are irrelevant, and the pulling speed does not influence measuring accuracy;
5) digital display screen demonstrates area value, for reducing measuring error, can survey several times averaging more.
Among the present invention, phototriode 7 apart from determining measuring accuracy, for improving measuring accuracy, can adopt linear array formula CCD light activated element, for measuring as miniature dimensions such as plant leafs, device can be very small and exquisite, during measurement, movable fixture moves along the blade face, finishes area measurement, needn't take leaf.
Claims (5)
1. irregular area measurement method, it is characterized in that, irregular measured object is relatively moved along T shape photoelectric measuring device surface, its width dimensions is read by crossfoot, length dimension is read by linear foot, microprocessor calculates and the accumulative total unit area, finishes the measurement of this irregular area, and its operation steps is as follows:
1) measured object is begun to keep measured object and chi face to fit along the pulling of linear foot direction from measurement mechanism crossfoot direction as far as possible;
2) when measured object covers first photoelectric sensor of linear foot, microprocessor reads on the crossfoot by shading electric transducer quantity A1, its width dimensions is A1 * lx, wherein lx is a photoelectric sensor distance values on the crossfoot, then tested region area is S1=A1 * lx * ly, and wherein ly is a photoelectric sensor distance values on the linear foot;
3) when measured object covers second photoelectric sensor of linear foot, microprocessor reads on the crossfoot by shading electric transducer quantity A2, and its width dimensions is A2 * lx, and tested region area is S2=S1+ (A2 * lx * ly);
4) so constantly spur measured object, leave crossfoot, measure and finish up to measured object;
5) microprocessor display goes out area value.
2. irregular area measurement device, it is characterized in that, comprise crossfoot, linear foot, microprocessor, digital display screen, crossfoot and linear foot are that landing tee is put, crossfoot and linear foot are respectively a photoelectricity receiver module or an above photoelectricity receiver module is in series from beginning to end, and microprocessor is connected with digital display screen with linear foot with crossfoot with power lead by the serial communication line respectively.
3. a kind of irregular area measurement device according to claim 2 is characterized in that described photoelectricity receiver module comprises cpu chip and a plurality of photoelectric sensor, and cpu chip is formed receiving loop with each photoelectric sensor respectively.
4. a kind of irregular area measurement device according to claim 3 is characterized in that, described photoelectric sensor is phototriode or linear array formula CCD light activated element.
5. according to claim 2 or 3 or 4 described a kind of irregular area measurement devices, it is characterized in that described photoelectricity receiver module adopts modular design, by serial communication line and power lead expansion.
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CN2010106015110A CN102128603A (en) | 2010-12-22 | 2010-12-22 | Irregular area measuring method and device |
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CN2010106015110A CN102128603A (en) | 2010-12-22 | 2010-12-22 | Irregular area measuring method and device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104729423A (en) * | 2015-02-12 | 2015-06-24 | 北京联创蓝坐标科技有限公司 | Measuring method for detecting geometric parameters of irregular glass |
CN107655442A (en) * | 2017-08-28 | 2018-02-02 | 广东出入境检验检疫局检验检疫技术中心 | A kind of device for determining irregular food contact material and product into contact area and preparation method thereof and application |
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CN87210718U (en) * | 1987-11-06 | 1988-07-27 | 程显超 | Electronic area meassuring instrument |
CN2056748U (en) * | 1989-08-19 | 1990-05-02 | 施建达 | Measuring instrument for irregular plain view drawing area |
GB2231164A (en) * | 1989-04-26 | 1990-11-07 | Papadakis Nicolaos | Determination of area of drawings |
JPH0743136A (en) * | 1993-06-29 | 1995-02-10 | Mitsubishi Heavy Ind Ltd | Printing area ratio measurement method and device therefor |
CN2353314Y (en) * | 1997-08-11 | 1999-12-15 | 江门田川电子设备有限公司 | Device for measuring area and weight of raw skin and wet skin |
CN101726267A (en) * | 2009-12-21 | 2010-06-09 | 哈尔滨市光学仪器厂 | Living leaf area tester and leaf area testing method |
CN201935671U (en) * | 2010-12-22 | 2011-08-17 | 左亚昆 | Irregular area measuring device |
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2010
- 2010-12-22 CN CN2010106015110A patent/CN102128603A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN87210718U (en) * | 1987-11-06 | 1988-07-27 | 程显超 | Electronic area meassuring instrument |
GB2231164A (en) * | 1989-04-26 | 1990-11-07 | Papadakis Nicolaos | Determination of area of drawings |
CN2056748U (en) * | 1989-08-19 | 1990-05-02 | 施建达 | Measuring instrument for irregular plain view drawing area |
JPH0743136A (en) * | 1993-06-29 | 1995-02-10 | Mitsubishi Heavy Ind Ltd | Printing area ratio measurement method and device therefor |
CN2353314Y (en) * | 1997-08-11 | 1999-12-15 | 江门田川电子设备有限公司 | Device for measuring area and weight of raw skin and wet skin |
CN101726267A (en) * | 2009-12-21 | 2010-06-09 | 哈尔滨市光学仪器厂 | Living leaf area tester and leaf area testing method |
CN201935671U (en) * | 2010-12-22 | 2011-08-17 | 左亚昆 | Irregular area measuring device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104729423A (en) * | 2015-02-12 | 2015-06-24 | 北京联创蓝坐标科技有限公司 | Measuring method for detecting geometric parameters of irregular glass |
CN104729423B (en) * | 2015-02-12 | 2017-09-08 | 北京联创蓝坐标科技有限公司 | A kind of measuring method for being used to detect special-shaped glass geometric parameter |
CN107655442A (en) * | 2017-08-28 | 2018-02-02 | 广东出入境检验检疫局检验检疫技术中心 | A kind of device for determining irregular food contact material and product into contact area and preparation method thereof and application |
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Application publication date: 20110720 |