CN2141890Y - Intelligent length gauge - Google Patents
Intelligent length gauge Download PDFInfo
- Publication number
- CN2141890Y CN2141890Y CN 92241157 CN92241157U CN2141890Y CN 2141890 Y CN2141890 Y CN 2141890Y CN 92241157 CN92241157 CN 92241157 CN 92241157 U CN92241157 U CN 92241157U CN 2141890 Y CN2141890 Y CN 2141890Y
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- length gauge
- described length
- measuring device
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- microprocessor
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- Expired - Lifetime
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model relates to an intelligent length measuring device which is composed of a photoelectric detection unit, a power failure detection unit, a pulse shaping unit and a microprocessor, wherein, the photoelectric detection unit is composed of a grating disc, infrared transmitting and receiving geminate transistors, a detecting wheel, a pressing wheel, a couple shaft and a support bracket. The length measuring device with high measuring accuracy, good reliability and perfect function can conduct accurate control for online production. When time is limited, besides emitting time adjustable control signals which can be directly used for motors and other electrical equipment, the utility model also emit audible and visual alarm signals at the same time. The intelligent length measuring device can be used in industries, such as textile industries, paper industries, etc. The intelligent length measuring device can accurately measure the length of carpets, blankets, cloth, paper, etc.
Description
The utility model relates to a kind of length gauge, and particularly a kind of multifunctional general length measuring device is used to measure the length of industry products such as weaving, papermaking.
In the automated production of modern industry, industries such as weaving, papermaking especially, to product length carry out accurate measurement and accurately control be very important.The various length gauges that arise at the historic moment thus, from the mechanical type to the electromechanical, experienced two generation product.The latter is enhanced and improve than the former aspect measuring accuracy and dirigibility, and patent announcement number is exactly a kind of representative for CN2105503U.But this electromechanical length gauge still belongs to pure hardware configuration, and measuring accuracy is subjected to the restriction of hardware, does not have the error correction link, thereby the accumulated error that is caused by factors such as the machining precision of length measurement sensor probe and on-the-spot installation environments, and is uncontrollable.And this quasi-instrument does not possess the control function to production line yet, goes out behind certain-length as product, cuts off automatically, reel or shutdown etc.; Can not to the output of product carry out categorizedly automatically statistics as: statistics such as existing product, daily output, monthly output.
The purpose of this utility model is to provide the length gauge of a kind of measuring accuracy height, good reliability, perfect in shape and function.
Length gauge of the present utility model is made up of photodetector unit (length measurement sensor), detection of power loss unit, pulse shaping unit and microprocessor.Photodetector unit by the detection wheel that directly contacts with product to be measured, pinch roller, with the coaxial connecting rod of pinch roller, can see through with grating dish, the infrared of reflected infrared and receive pipe, form with couple axle and fixed support that detection wheel is fixedlyed connected with the grating dish.
Microprocessor is made up of single-chip microcomputer, memory under program, data memory, keyboard and display.
The utility model has following accompanying drawing:
Fig. 1 photodetector unit structural representation.
Fig. 2 Kind of Intelligent Measure Instrument hardware block diagram.
Fig. 3 Kind of Intelligent Measure Instrument hardware elementary diagram.
Fig. 4 main system control module block diagram.
Accompanying drawing 1 has provided photodetector unit structural representation of the present utility model.Among the figure, 1 is detection wheel, 2 is pinch roller, it is fixed on the support 8 by connecting rod 3, can lift arbitrarily up and down, 3 is the connecting rod coaxial with pinch roller 2, and 4 is the grating dish, and 5 is the light hole on the grating dish 4,6 send to receive pipe for infrared ray, it be by the light of two pairs of certain distances that stagger relatively to pipe, stick together up and down and constitute (seeing B-B place in the accompanying drawing 1) top for penetrating the transmission pipe of infrared light, the bottom is the receiving tube of reception infrared light, 7 is the couple axle of detection wheel 1 and grating dish 4,8 is the fixed support of photodetector unit, and 9 is the shell of opto-electronic conversion mechanism, and 10 is the stube cable that transmits electric impulse signal to microprocessor.
Accompanying drawing 2 has provided hardware block diagram of the present utility model.Among the figure, 11 is single-chip microcomputer, 12 is photodetector unit, 13 is pulse shaping unit, its input end connects photodetector unit 12, output terminal connects single-chip microcomputer 11,14 is the detection of power loss unit, and 15 for input end connects the pulse shaping unit that detection of power loss unit 14 output terminals connect single-chip microcomputer 11, and 16 is memory under program, 17 is digital memory, 18 is keyboard, and 19 is display, and 20 is the I/O mouth of single-chip microcomputer 11,21 is the loudspeaker power amplifier by single-chip microcomputer 11 controls, and 22 is the relay drive circuit by single-chip microcomputer 11 controls.
Principle of work of the present utility model is as follows: when the product on the production line is measured, the tested textile (for example carpet, woollen blanket, cloth, paper) that is moving is placed between detection wheel 1 and the pinch roller 2, along with moving of testee, friction is rotated detection wheel 1, drive and the coaxial grating dish that links to each other 4 of detection wheel 1 rotates have on the grating dish 4 that spacing equates tens (inspection survey the requirement of resolution and decide) light holes 5 simultaneously.In the rotation process, infrared ray sends and receives the infrared light that the transmission pipe of managing in 6 is launched, and is done gap reflection clocklike by grating dish 4, and reflected light is received pipe again and receives, and produces electric impulse signal.Because each pulse is corresponding to an angular displacement of detection wheel 1, like this, by opto-electronic conversion, the displacement of measured object has become corresponding electric signal, be input in the microprocessor by cable 10, after processing such as over-sampling, shaping, can obtain the reading of length gauge value.
Because some labile factor on the production line, may cause that testee is carved at a time to move back and forth and cause miscount.Therefore, in actual measurement, judge that the direction of motion of testee is particularly important.General horizontal metroscope is powerless to the measurement cumulative errors that this situation causes.Yet single-chip microcomputer 11 of the present utility model, to electric impulse signal by the output of the opto-electronic conversion mechanism of length measurement sensor, adopt the input mode of interrupting and inquiring about combination, two pairs of infrared lights are launched the signalling channel that receives pipe, all are separate from sampling shaping pulse.Two paths of signals is linked two I/O mouths of single-chip microcomputer 11 on the one hand respectively, be defeated by an external interrupt request input end of single-chip microcomputer 11 on the other hand again simultaneously with the relation of logical "or", like this as long as there is signal on arbitrary road, single-chip microcomputer 11 all can respond, after program enters break in service, inquire about the logic state variation order of two I/O mouths again, just can judge the direction of motion of testee, thereby the measuring error that causes because of counter motion has been eliminated in the increase and decrease of decision step-by-step counting effectively.
Fig. 3 is the length gauge hardware elementary diagram.Forming the microprocessor of instrument by single-chip microcomputer 8031, address latch 373, memory under program 2732, is the control core of instrument, and master oscillator frequenc is 12M, instruction time 1 μ S, for rapid reaction and processing to photosignal are laid a good foundation.
Keyboard adopts the timesharing definition, the working method of multi-function by one key, and circuit is selected the non-coding form of matrix structure for use, surveys key by rank scanning, and 8031 eight bit parallel mouth P1 mouths are used as 2 * 6 rank scanning line, and P1.6～P1.7 is a line, and P1.0～P1.5 is an alignment., key function conversion etc. anti-shake as for scanning decoding, button realizes by software.Display adopts 67 hop count sign indicating numbers of dynamic scan to show, makes the scanning timer by 8031T1, bit code output and key alignment time-sharing multiplex, and segment encode is expanded 377 outputs of one eight bit parallel mouth by 8031 modes of operation by external RAM.The unit of 8031 outer RAM of this mouthful conduct, the address is EFFFH.
Be long preservation data after the power down, this machine has been selected the E of up-to-date memory device electric erasable for use
2PROM2816A is as 8031 external data memory, and memory capacity is the 2K byte, by experiment each unit of reliable write time is about 1.2ms, write voltage+5V in the ns level readout time.The 2816A chip selection signal is provided by 8031P2.4, and then addressing range is FOOOH～F7FFH.
The reception of 8031 pairs of photosignals is adopted and is interrupted input mode, and the signalling channel of two pairs of transmitting and receiving tubes is independent mutually from sampling shaping pulse.By after two time base circuit 555 shapings that are in the bistable duty, the one tunnel is defeated by 8031 P3.0 to detected photosignal respectively, and P3.1 is defeated by on another road, and simultaneously, two signals are anti-phase to 8031 INT after a Sheffer stroke gate again
1Interrupt request, as long as arbitrary road detects signal, 8031 all can respond like this, after program enters break in service, declare in proper order to, counting work according to the variation of P3.0, P3.1 state again.
System's primary power is through the two-stage voltage stabilizing, and uses big capacitor filtering, so inertia is big, power down speed is slow.The detection of power loss signal is then directly from the secondary taking-up of power transformer, after rectification,, and,, grid voltage change is quick on the draw so power down speed is fast without voltage stabilizing by little capacitor filtering, this signal after 555 shapings are anti-phase again to 8031 INT
0Disconnected, utilize the inertia of power-off signal and system power supply poor like this, system can carry out the data protection work of treatment safely when electric network power-fail.
This instrument is as a complete computer measurement and control system, and software design has a large capacity and a wide range, abundant in content.Program still adopts modular construction, is divided into two big class, i.e. system resource management software and application software by tradition.The former mainly comprises, keyboard, display operation management, and system failure monitoring, anti-interference trap setting, binary number/binary-coded decimal is changed mutually, double byte multiplication, division, function is switched, the synthetic universal program that waits of audio signal.The latter then mainly contains, and the sampling of photosignal, declares to, reversible counting the modification of each parameter, calculating, demonstration conversion, power down scene protection and recovery, special modules such as overload alarm, relay output control.
Accompanying drawing 4 is the main system control module block diagram, can see the groundwork flow process that instrument is total by it.
This length gauge has the following advantages: the working method of instrument is the reversible counting mode of both forward and reverse directions, and the positive and negative of the measurand direction of motion can be by user's Set arbitrarily, so the installation direction of length measurement sensor probe is not subjected to any restriction in production scene. Instrument can accurately be controlled online production by the setting of user by keyboard, in limited time except sending the time adjustable control signal that can be directly used in motor and other electrical equipment, and sends simultaneously the sound and light alarm signal. For ease of the statistical management of enterprise to producing, this instrument can carry out continuous integration to the daily output, monthly output automatically. After the power down (comprising normal shutdown), need any electric energy, data will never be lost, can all front states of automatically fast quick-recovery power down after powering on. Instrument and user interface are the man-machine conversation mode of calculating formula, and data input and feature operation are very flexible.
The instrument the key technical indexes:
Measuring accuracy: be better than one thousandth (instrument self precision reached 100,000/).
Measurement Resolution: 4mm.
Display: 6 digital demonstrations of LED.
Displaying contents: day output (m), monthly output (m), setting value (cm),
Currency (cm), online direction of motion.
Input mode: 12 bit keyboards inputs (wherein 10 keys are double function key).
Input content: the modification of various parameters and demonstration conversion, the positive negative direction of definition counting.
The control way of output: 1 pair of relay contact, contact capacity are 1.5A/220VAC.
Alarming horn power is 2W.
Claims (7)
1, a kind of Kind of Intelligent Measure Instrument, comprise photodetector unit, pulse shaping unit, it is characterized in that photodetector unit 12 is by the detection wheel 1 that directly contacts with product to be measured, the pinch roller 2 that is positioned at detection wheel 1 top, with the coaxial connecting rod 3 of pinch roller 2, can see through and grating dish 4, the infrared of reflected infrared receive managing 6, the couple axle 7 of fixedlying connected with the grating dish with detection wheel, fixed support 8 is formed, photodetector unit 12 is connected with microprocessor through pulse shaping unit 13, and detection of power loss unit 14 is connected with microprocessor through pulse shaping unit 15.
2,, it is characterized in that microprocessor is made up of single-chip microcomputer 11, memory under program 16, data memory 17, keyboard 18, display 19 according to the described length gauge of claim 1.
3, according to the described length gauge of claim 2, it is characterized in that keyboard 18 is 12 bit keyboards, wherein 10 keys are double function key, circuit is selected the non-coding form of matrix structure for use, survey key by rank scanning, 8031 eight bit parallel mouth P1 mouths are used as 2 * 6 rank scanning line, and P1.6～P1.7 is a line, and P1.0～P1.5 is an alignment.
4, according to the described length gauge of claim 3, it is characterized in that display 19 is that 6 LED are digital and shows, display adopts 67 hop count sign indicating numbers of dynamic scan to show, makes the scanning timer by 8031T1, bit code output and key alignment time-sharing multiplex.
5,, it is characterized in that 8031 external data memory selected the E of electric erasable for use according to the described length gauge of claim 4
2PROM2816A, memory capacity are the 2K byte.
6, according to the described length gauge of claim 5, it is characterized in that the interruption input mode is adopted in the reception of 8031 pairs of photosignals, the signalling channel of two pairs of transmitting and receiving tubes, independent mutually from sampling shaping pulse.
7, according to the described length gauge of claim 6; it is characterized in that system's primary power is through the two-stage voltage stabilizing; and use big capacitor filtering; the detection of power loss signal is then directly from the secondary taking-up of power transformer, after rectification by little capacitor filtering, without voltage stabilizing; so power down speed is fast; grid voltage change is quick on the draw, and this signal interrupts to the 8031INTO request after 555 shapings are anti-phase again, and system can carry out the data protection work of treatment safely when electric network power-fail like this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241157 CN2141890Y (en) | 1992-11-18 | 1992-11-18 | Intelligent length gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241157 CN2141890Y (en) | 1992-11-18 | 1992-11-18 | Intelligent length gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141890Y true CN2141890Y (en) | 1993-09-08 |
Family
ID=33781308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92241157 Expired - Lifetime CN2141890Y (en) | 1992-11-18 | 1992-11-18 | Intelligent length gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141890Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458369C (en) * | 2006-12-24 | 2009-02-04 | 赵清滨 | Length measuring method |
| CN101963769A (en) * | 2009-07-21 | 2011-02-02 | 富士施乐株式会社 | Sheet length measuring and image processing system |
| CN102278965A (en) * | 2011-08-01 | 2011-12-14 | 杭州奇力企业管理咨询有限公司 | Length measuring instrument for transport tape of gluing machine |
| CN102937432A (en) * | 2012-11-02 | 2013-02-20 | 无锡华联科技集团有限公司 | Pipe conveying length detecting mechanism |
| CN104776805A (en) * | 2015-04-15 | 2015-07-15 | 安徽机电职业技术学院 | Cable metering device |
| CN104807408A (en) * | 2015-04-15 | 2015-07-29 | 安徽机电职业技术学院 | Laser cable meter counter |
| CN112053462A (en) * | 2020-09-01 | 2020-12-08 | 北京谛测科技有限公司 | Method, device and equipment for continuously recording outage of digital yarn precise length measuring instrument of bobbin winder |
-
1992
- 1992-11-18 CN CN 92241157 patent/CN2141890Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458369C (en) * | 2006-12-24 | 2009-02-04 | 赵清滨 | Length measuring method |
| CN101963769A (en) * | 2009-07-21 | 2011-02-02 | 富士施乐株式会社 | Sheet length measuring and image processing system |
| CN101963769B (en) * | 2009-07-21 | 2015-05-06 | 富士施乐株式会社 | Sheet length measurement apparatus and image forming apparatus |
| CN102278965A (en) * | 2011-08-01 | 2011-12-14 | 杭州奇力企业管理咨询有限公司 | Length measuring instrument for transport tape of gluing machine |
| CN102937432A (en) * | 2012-11-02 | 2013-02-20 | 无锡华联科技集团有限公司 | Pipe conveying length detecting mechanism |
| CN104776805A (en) * | 2015-04-15 | 2015-07-15 | 安徽机电职业技术学院 | Cable metering device |
| CN104807408A (en) * | 2015-04-15 | 2015-07-29 | 安徽机电职业技术学院 | Laser cable meter counter |
| CN104776805B (en) * | 2015-04-15 | 2017-12-08 | 安徽机电职业技术学院 | Meter counter for cable |
| CN112053462A (en) * | 2020-09-01 | 2020-12-08 | 北京谛测科技有限公司 | Method, device and equipment for continuously recording outage of digital yarn precise length measuring instrument of bobbin winder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |