CN101482939A - Telemetering meter two-dimensional encoding digital wheel and its integrating sensor code-reading apparatus - Google Patents
Telemetering meter two-dimensional encoding digital wheel and its integrating sensor code-reading apparatus Download PDFInfo
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- CN101482939A CN101482939A CNA2009100103685A CN200910010368A CN101482939A CN 101482939 A CN101482939 A CN 101482939A CN A2009100103685 A CNA2009100103685 A CN A2009100103685A CN 200910010368 A CN200910010368 A CN 200910010368A CN 101482939 A CN101482939 A CN 101482939A
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Abstract
The invention relates to a remote meter two-dimensionally encoding digit wheel and an integrated sensor code reader thereof, substantially solving problem that a code reader of the existing remote meter digit wheel carried with 'angle one-dimensional encoding' information has relatively excessive detecting components, complex codes and relatively excessive code reading interference factors. The relatively excessive comprises encoding bars arranged on peripheral face on a black lining of the encoding digit wheel. The technical points are as follows: the encoding bars are the width stepped encoding bars provided with ten sections of light arithmetic step width codes or ten sections of add-even step width codes; the peripheral face of the encoding digit wheel is uniformly arranged with red figures 0-9 corresponding to the width stepped encoding bars; an integrated width sensor parallel to a character wheel shaft is encapsulated on a code reading and decoding circuit board of the code reader; and a plurality of sensor sections corresponding to the width stepped encoding bars are arranged on a work face of the integrated width sensor. The digit wheel has small volume, low price, low power consumption and high working reliability, and can be applied to kinds of water meters, electricity meters, gas meters and other remote meters.
Description
Technical field
The present invention relates to a kind of telemetering meter digit wheel and integrating sensor code-reading apparatus thereof that is exclusively used in teletransmission metering water meter, ammeter, gas meter etc., particularly a kind of with telemetering meter " angle the adds width " two-dimensional encoding digital wheel that carries width value second dimension coded message of one dimension angle correspondence position setting, and adopt this telemetering meter two-dimensional encoding digital wheel to read the integrating sensor code-reading apparatus of sign indicating number.
Background technology
At present, traditional physical construction of table such as water meter, ammeter, gas meter meter is along with the electronic digitalizing technology rapid development, and its decimal system mechanical rotary-type counter is substituted by the coding print wheel photoelectric direct-reading apparatus that is applied to telemetering meter of electromechanical integration gradually.According to relevant patent documentation introduction, as notification number is that " being used for the character wheel on the gauging table inside counting device ", the notification number of CN2641731Y is that " mechanical character wheel electronic digitalizing method and passive Automatic meter reading system thereof ", the notification number of CN1236281C is that " colored bar coding of mechanical counter of meter character wheel and digital electric signal output unit ", the publication number of CN2747541Y is the documents such as " a kind of non-contact reading sensor of mechanical character wheel counter and methods for designing " of CN1835002A, all discloses respective coding character wheel and direct readout thereof.The photoelectric direct-reading apparatus of these coding print wheels can be divided into pulse and photo-electronic directly reading two classes.Wherein pulse class table meter need be reset initial value because of the needs continued power after the outage, so application is less.And photo-electronic directly reading class table meter is only being checked meter the moment power supply owing to do not power at ordinary times, and is directly to read wheel digital, initial value need be set, so applied.
Home and abroad existing table photometric photoelectric direct reading device mainly is divided into following type by its coding and light channel structure form: promptly axial transmission-type, radially reflection-type, radially optical fiber reflection-type and transmission-type radially.Though above type structure is different, but their coded system all belongs to " angle one-dimensional coding ", that is: on the character code position of the different angles of coding print wheel circumference numeral 0 starting point, only be processed with the encoded point that has " bright " and " secretly " difference for photoelectric sensor, when detection illumination was mapped to the character code of coding print wheel, receiver can only read and export the binary digital signal of " 1 " or " 0 ".If four above check points at the coding print wheel circumference can read binary digital signal simultaneously, so just can pass through decoding algorithm, calculate the angle of the current rotation of coding print wheel, converse numeral corresponding on the coding print wheel.This class " angle one-dimensional coding " has certain advantage: promptly adopt 1 or 0 digital signal pattern, the signal to noise ratio (S/N ratio) height; But the shortcoming that exists is: 1, need at least four above check points need be set at the coding print wheel circumference, detection means is more, cost is higher so use; 2, the total angle that distributes at a plurality of check points of coding print wheel circumference is greater than 72 degree, so the volume of photoelectric direct-reading apparatus is big, difficulty of processing is also big; 3, many owing to reading code-point, the encryption algorithm complexity that not only causes photoelectric direct-reading apparatus, and can't solve the voltage fluctuation, interference noise and the sensing element in use that produce for power circuit aging and to the unsuitable environmental conditions such as pollution on " bright ", " secretly " encoded point surface to read, the influence of decode results, the noisy numerical value accuracy that is calculated just is difficult to the requirement that reaches desirable.Therefore, existing coding print wheel and coding method are further improved and are perfect.
In order to solve the problems referred to above that " angle one-dimensional coding " digit wheel brings, the inventor once designed " the two-dimension encoding print wheel of far-transfer gauge photoelectric direct-reading apparatus " that a kind of number of patent application is 200810228004.X.Wherein, the structure of coding print wheel has adopted the two-dimensional encoded character wheel of a kind of " angle adds brightness ", promptly be provided with the encoding strip of zero level to nine grade discrete digital value or continuous analog value, and utilize the direct readout of the automatic adjustment calibration function of having of its uniqueness to finish it and read code function in the left side on the face of cylinder of character wheel.Its compact conformation, volume is less, and cost is lower, accuracy of reading, the two-dimensional encoded character wheel of utilization " angle adds brightness " has solved the problem that existing " angle one-dimensional coding " digit wheel exists preferably.
Summary of the invention
The objective of the invention is for provide a kind of with the telemetering meter two-dimensional encoding digital wheel and the integrating sensor code-reading apparatus thereof that carry width value second dimension coded message of one dimension angle correspondence position setting, fundamentally solve the existing code-reading apparatus that carries the telemetering meter digit wheel of " angle one-dimensional coding " information and use that detection means is more, volume big, coding is complicated, read the more difficult problem of yard disturbing factor, compare with the existing code-reading apparatus that uses discrete photoelectric device to make, it has the advantage that volume is little, price is low, power consumption is few, functional reliability is high.
The technical solution adopted in the present invention is: this telemetering meter two-dimensional encoding digital wheel comprises the encoding strip on the outer circumference surface that is arranged on encoding digital wheel black substrate, its technical essential is: described encoding strip is a width ladder encoding strip, described width ladder encoding strip is set to ten sections equal difference ladder width codings or ten sections odd even ladder width codings of light color, the evenly distributed red numeral 0～9 of corresponding described width ladder encoding strip on the outer circumference surface of described encoding digital wheel.
The integrating sensor code-reading apparatus of described telemetering meter two-dimensional encoding digital wheel comprises table meter support and the print wheel shaft of fixing on it, be assembled in multidigit encoding digital wheel and code reader on the print wheel shaft, its technical essential is: described code reader read on yard decoding scheme plate encapsulation integrated width sensor parallel with described print wheel shaft, the described width ladder encoding strip of the described encoding digital wheel of corresponding multidigit is provided with a plurality of sensor segments on the workplace of described integrated width sensor, each described sensor segments is provided with delegation's multiple row luminescence unit, and corresponding described luminescence unit is provided with delegation's multiple row receiving element, between the described luminescence unit, between luminescence unit and the described receiving element, the photoelectricity separation layer all is set between the receiving element.
Described integrated width sensor is connecting the described serial switch that is provided with on yard decoding scheme plate read.
The good effect of advantage of the present invention and generation thereof is: because the telemetering meter two-dimensional encoding digital wheel that the present invention adopts is to carry the width value second dimension coded message being provided with one dimension angle correspondence position, promptly on the outer circumference surface of the black substrate of this encoding digital wheel, light width ladder encoding strip is set, and the evenly distributed red numeral 0～9 of corresponding width ladder encoding strip, formed the two-dimensional encoded mode of " angle adds width " with unique texture, so it is diverse with existing " angle one-dimensional coding ", it can directly express the second dimension information of " width value " in corresponding digit wheel angle one dimension position.This is and the matching used special-purpose advanced encoder mode of the integrated width sensor of semiconductor of the present invention.The width ladder encoding strip of corresponding multidigit encoding digital wheel is provided with a plurality of sensor segments on the workplace of integrated width sensor, receive the second dimension information of " width value ", by reading yard serial switch of decoding scheme plate and reading a yard decoding scheme and be connected, read the second dimension information of " width value ", be translated into the tens digit of width coding correspondence at last.Adopt the dedicated semiconductor integrated optoelectronic device of semiconductor integrated technology processing and fabricating, be and the matching used sensor special of two-dimentional width coding.This semiconductor integrated sensor is compared with the existing yard sensor device of reading that uses discrete photoelectric device to make, and it has the advantage that volume is little, price is low, power consumption is few, functional reliability is high.It fundamentally solves, and existing telemetering meter discrete device code-reading apparatus use detection means is more, volume big, the coding complicated, read the more difficult problem of yard disturbing factor, the semiconductor integrated sensor will thoroughly replace existing discrete device code reader as the integrated circuit in the electrical equipment such as televisor, computing machine.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the cylinder unwrapping figure that has the encoding digital wheel of equal difference ladder width coding of the present invention.
Fig. 2 is the cylinder unwrapping figure that has the encoding digital wheel of odd even ladder width coding of the present invention.
Fig. 3 is a kind of concrete structure synoptic diagram of code-reading apparatus of the present invention.
Fig. 4 is the cut-open view of Fig. 3 along the A-A line.
Fig. 5 is the concrete structure synoptic diagram of integrated width sensor of the present invention.
Fig. 6 is circuit theory diagrams of the present invention.
Sequence number explanation among the figure: 1 encoding digital wheel, 2 width ladder encoding strips, 3 red numerals, 4 print wheel shafts, 5 integrated width sensors, 6 are read a yard decoding scheme plate, 7 sensor segments, 8 workplaces, 9 luminescence units, 10 receiving elements, 11 photoelectricity separation layers, 12 serial switch, 13CPU, 14 impulse meters, 15 storeies, 16 voltage stabilizers, 17 data-interfaces, 18 equal difference ladder widths coding, 19 odd even ladder widths coding.
Embodiment
Describe concrete structure of the present invention in detail according to Fig. 1～6.Telemetering meter two-dimensional encoding digital wheel of the present invention has adopted and has been provided with the brand new that carries the width value second dimension coded message with one dimension angle correspondence position, the integrating sensor code-reading apparatus that this telemetering meter two-dimensional encoding digital wheel is used is by table meter support (not shown) with fix print wheel shaft 4 on it, be assembled in multidigit encoding digital wheel 1 on the print wheel shaft 4, be fixed on the code reader that is made of integrated width sensor 5 on the table meter support and read yard decoding scheme etc. and form.The counter of this telemetering meter promptly is made up of the coaxial encoding digital wheel 1 of multidigit.
Wherein: this telemetering meter two-dimensional encoding digital wheel comprises the encoding strip on the outer circumference surface that is arranged on encoding digital wheel 1 black substrate, encoding strip is the width ladder encoding strip 2 of light color, and width ladder encoding strip 2 is set to 18 or ten sections odd even ladder width codings 19 of ten sections equal difference ladder width codings of light color.Promptly, process ten ladder rectangle encoding strips of a light color in the left side on encoding digital wheel 1 face of cylinder.The height of each encoding strip is each encoding strip width=progression * 3 * sensor resolving accuracy of 1/10, ten grade of ladder of character wheel girth, for example 9 * 3 * 25.4 millimeters/600=1.143 millimeter.Corresponding width ladder encoding strip 2 evenly distributed 0～90 red numeral 3 on the outer circumference surface of encoding digital wheel 1, as Fig. 5, shown in Figure 6, the progression of equal difference ladder width coding 18, press the 0-9 series arrangement, the progression of odd even ladder width coding 19 is arranged by 0,2,4,6,8,9,7,5,3,1 odd even.Because the color of black substrate and red numeral 3 has very big difference, institute is so that the range estimation meter reading; They have very big reflecting brightness difference to all very low and light width ladder encoding strip 2 of green, the blue monochromatic reflectivity of light emitting diode simultaneously, are fit to photoelectricity and differentiate requirement.In addition, 0 reference position should be determined by the code reader position angle in the red numeral 3.For example adopt 180 degree to read code-point, digital starting point 0 should be positioned at 180 degree places of bright, the darkest encoding strip boundary line.Other transmission of encoding digital wheel 1 is identical with general character wheel with physical constructions such as carries.
Code reader read on yard decoding scheme plate 6 the parallel integrated width sensor 5 of encapsulation and print wheel shaft 4, the encapsulation direction is parallel with the circuit board face, for a long time waterproof, insulate anticreep.Its optical axial points to the character wheel axis.Integrated width sensor 5 adopts the integrated optoelectronic device technology similar with general CIS or LIDE device, but it has following specific (special) requirements: as shown in Figure 5, the width ladder encoding strip 2 of corresponding multidigit encoding digital wheel 1 is provided with a plurality of sensor segments 7 on the workplace 8 of integrated width sensor 5.Distance between workplace 8 and the encoding digital wheel 1 is minimum, approximately＜0.2 millimeter, for noncontact cooperates.Each " sensor segments is wide "=character wheel site error+encoding strip breadth extreme+character wheel trueness error, for example: the 0.2+1.3+0.2=1.7 millimeter.Each " spacer is wide "=character wheel width+character wheel assemblage gap-" sensor segments is wide " between the sensor segments 7.For example: 5.2+0.1-1.7=3.6 millimeter, or 7.5+0.1-1.7=5.9 millimeter.The overall width of integrated width sensor 5 equals the overall width of multidigit coded digital wheels.It is parallel simultaneously luminous that each sensor segments 7 is provided with delegation's multiple row luminescence unit 9., and corresponding luminescence unit 9 is provided with delegation's multiple row receiving element 10, the width of each receiving element 10 should reach the resolution that is equivalent to scanner 600DPI by the decision of sensor resolving accuracy.Between the luminescence unit 9, between luminescence unit 9 and the receiving element 10, between the receiving element 10 photoelectricity separation layer 11 is set all,, can prevent that the light of luminescence unit from shining directly into the surface of receiving element promptly in illuminated rows with receive between the row and be provided with optical isolation layer.Be provided with the electrical isolation layer between every row, can insulate and prevent and crosstalk.Herein, integrated width sensor 5 adopts the bus form of low price industry control chip, under direct current 5 laid shoot spares, work, be reflecting operating mode, the difference that is used for sensed luminance, luminescence unit 9 is equidirectional and parallel with the primary optical axis of receiving element 10, integrated width sensor 5 does not need the RGB color separation of imageing sensor CIS color separation luminous or imageing sensor LIDE to receive, so optional with the highest green (orchid) monochromatic light of photoelectric efficiency, and its output signal-to-noise ratio is not less than above-mentioned general CIS or LIDE device.
As shown in Figure 6, reading yard decoding scheme is made up of serial switch 12, CPU13, impulse meter 14, storer 15, voltage stabilizer 16, data-interface 17, integrated width sensor 5 is connecting the serial switch 12 of reading setting on yard decoding scheme plate 6, serializable is exported the signal of each receiving element 10 of each section successively, this telemetering meter two-dimensional encoding digital wheel integrating sensor code-reading apparatus to read yard work decoding process as follows:
1, integrated width sensor 5 reads the high-brightness region width of encoding strip correspondence on each encoding digital wheel 1, the pulse of output respective amount.
1.1, when meter-copy device by data-interface 17 when reading code decoder and send meter reading instruction, certain encoding digital wheel 1 is in certain position.For example its artificial meter reading window is shown as numeral 8, and integrated width sensor 5 is " 8 width " in the face of the width ladder encoding strip 2 of this encoding digital wheel 1.
1.2, CPU13 is by serial switch 12, read the output of these encoding digital wheel 1 corresponding sensor section 7 each receiving elements 10 successively, wherein receiving stray light shines, it is first-class to be radiated at the table meter as extraneous daylight, light etc., and the unit that has pulse to export, be registered as " stray light pulse unit " and deposit storer 15 in.
1.3, CPU13 is to luminescence unit 9 power supply of integrated width sensor 5, luminescence unit 9 is luminous, illuminates the coded digital wheels on opposite.At this moment, the surface brightness of character wheel group has produced " 8 width " bright area of " background " dark and encoding strip correspondence.
1.4, dark, bright area light reflexes to receiving element 10, the corresponding high and low level of output then.
1.5, serial switch 12 reads the high and low level number of each receiving element in this sensor segments 7 successively, and delivers to impulse meter 14, obtains one group " the bright pulse number of 8 width ".
1.6, CPU13 from " the bright pulse of 8 width ", deduct and quantity that " stray light pulse unit " is corresponding, obtain one group " 8 width-pulse quantity ".
1.7, the CPU13 pulse of reading integrated width sensor 5 each sensor segments 7 successively, obtain one group " width-pulse quantity of multidigit character wheel ".
2, code translator is converted to binary digit to number of pulses.
2.1, CPU13 contrasts ten groups of data that prestore in " 8 width-pulse quantity " and the storer 15, obtains the binary digit 8 of a correspondence.
2.2, CPU13 adds check codes for this binary digit 8.
2.3, CPU13 many times repeats 2-1,2-2 operation, obtains one group of multidigit binary digit.
3, meter-copy device is converted to tens digit to binary digit.
3.1, CPU13 sends one group of multidigit binary digit to meter-copy device by data-interface 17.
3.2, meter-copy device software converts this group multidigit binary digit to the multidigit decimal numeral, for example 87654, be presented on the screen.
3.3, CPU13 also transmits out of Memory such as this table meter address code to meter-copy device.
In addition, encoding digital wheel 1 of the present invention also can use existing general CIS or LIDE device to form code-reading apparatus, reads and translate the two-dimensional encoded numerical information of encoding digital wheel of the present invention.The structure of two kinds of code-reading apparatus is basic identical, also can reach yard effect of reading of same expection, but its cost is higher, far away from the integrating sensor code-reading apparatus of telemetering meter two-dimensional encoding digital wheel of the present invention.
Claims (3)
1, a kind of with the telemetering meter two-dimensional encoding digital wheel that carries width value second dimension coded message of one dimension angle correspondence position setting, comprise the encoding strip on the outer circumference surface that is arranged on encoding digital wheel black substrate, it is characterized in that: described encoding strip is a width ladder encoding strip, described width ladder encoding strip is set to ten sections equal difference ladder width codings or ten sections odd even ladder width codings of light color, the evenly distributed red numeral 0～9 of corresponding described width ladder encoding strip on the outer circumference surface of described encoding digital wheel.
2, a kind of integrating sensor code-reading apparatus that is used for telemetering meter two-dimensional encoding digital wheel as claimed in claim 1, comprise table meter support and the print wheel shaft of fixing on it, be assembled in multidigit encoding digital wheel and code reader on the print wheel shaft, it is characterized in that: described code reader read on yard decoding scheme plate encapsulation integrated width sensor parallel with described print wheel shaft, the described width ladder encoding strip of the described encoding digital wheel of corresponding multidigit is provided with a plurality of sensor segments on the workplace of described integrated width sensor, each described sensor segments is provided with delegation's multiple row luminescence unit, and corresponding described luminescence unit is provided with delegation's multiple row receiving element, between the described luminescence unit, between luminescence unit and the described receiving element, the photoelectricity separation layer all is set between the receiving element.
3, the integrating sensor code-reading apparatus of telemetering meter two-dimensional encoding digital wheel according to claim 2 is characterized in that: described integrated width sensor is connecting the described serial switch that is provided with on yard decoding scheme plate read.
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| CN2009100103685A CN101482939B (en) | 2009-02-13 | 2009-02-13 | Telemetering meter two-dimensional encoding digital wheel and its integrating sensor code-reading apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102829834A (en) * | 2012-09-07 | 2012-12-19 | 济南瑞泉电子有限公司 | High-reliability long-life direct reading remote transferring gas meter |
| CN104048726A (en) * | 2014-01-14 | 2014-09-17 | 莱芜欧利电子有限公司 | Direct reading meter character wheel surface information array method |
| CN104157078B (en) * | 2014-08-07 | 2016-08-24 | 河北省水利科学研究院 | IC-card water meter measurement device based on image discriminating |
| CN107246926A (en) * | 2017-07-04 | 2017-10-13 | 安徽鹰峰电子科技有限公司 | A kind of rapid multi-channel temperature sensor coded system and method |
| CN110716458A (en) * | 2019-09-06 | 2020-01-21 | 南京工程学院 | Gas data acquisition device based on color recognition and use method thereof |
| WO2020113368A1 (en) * | 2018-12-03 | 2020-06-11 | 金卡智能集团股份有限公司 | Sampling counting method based on light reflection |
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2009
- 2009-02-13 CN CN2009100103685A patent/CN101482939B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102829834A (en) * | 2012-09-07 | 2012-12-19 | 济南瑞泉电子有限公司 | High-reliability long-life direct reading remote transferring gas meter |
| CN102829834B (en) * | 2012-09-07 | 2014-06-11 | 济南瑞泉电子有限公司 | High-reliability long-life direct reading remote transferring gas meter |
| CN104048726A (en) * | 2014-01-14 | 2014-09-17 | 莱芜欧利电子有限公司 | Direct reading meter character wheel surface information array method |
| CN104111100A (en) * | 2014-01-14 | 2014-10-22 | 莱芜欧利电子有限公司 | Direct-reading bar code character wheel gas register |
| CN104111085A (en) * | 2014-01-14 | 2014-10-22 | 莱芜欧利电子有限公司 | Bar code print wheel direct-reading gauge metering device |
| CN104111100B (en) * | 2014-01-14 | 2017-12-12 | 莱芜欧利电子有限公司 | A kind of bar code character wheel direct-reading combustion gas register |
| CN104157078B (en) * | 2014-08-07 | 2016-08-24 | 河北省水利科学研究院 | IC-card water meter measurement device based on image discriminating |
| CN107246926A (en) * | 2017-07-04 | 2017-10-13 | 安徽鹰峰电子科技有限公司 | A kind of rapid multi-channel temperature sensor coded system and method |
| CN107246926B (en) * | 2017-07-04 | 2023-08-29 | 安徽鹰峰电子科技有限公司 | Quick multichannel temperature sensor coding system and method |
| WO2020113368A1 (en) * | 2018-12-03 | 2020-06-11 | 金卡智能集团股份有限公司 | Sampling counting method based on light reflection |
| CN110716458A (en) * | 2019-09-06 | 2020-01-21 | 南京工程学院 | Gas data acquisition device based on color recognition and use method thereof |
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