CN106932044A - Direct-reading intelligent telemetering gas meter based on plastic optical fiber sensing communication - Google Patents
Direct-reading intelligent telemetering gas meter based on plastic optical fiber sensing communication Download PDFInfo
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- CN106932044A CN106932044A CN201511011628.2A CN201511011628A CN106932044A CN 106932044 A CN106932044 A CN 106932044A CN 201511011628 A CN201511011628 A CN 201511011628A CN 106932044 A CN106932044 A CN 106932044A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
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Abstract
The present invention relates to a kind of direct-reading intelligent telemetering gas meter based on plastic optical fiber sensing communication, its composition is included, combustion gas base table, mechanical counter, photoelectric sensor, it is characterised in that：The photoelectric sensor is made up of plastic optical fiber and single optical transceiver, encoded light reflection bar is provided with mechanical counter character wheel end face, one end of some plastic optical fibers connects several single optical transceivers, the other end of these plastic optical fibers, light and light-receiving end, end face is vertically just being provided with the end face of encoded light reflection bar to character wheel, and when character wheel rotates, the encoded light reflection bar of character wheel end face then passes through from plastic optical fiber end face frontal plane of projection successively.Plastic optical fiber of the present invention is luminous, light end face against character wheel end face light reflection bar, plastic optical fiber line footpath is thin in addition, direct-reading sensitivity and the precision of character wheel position can be improved, also beneficial to the miniaturization of mechanical photoelectric coding counter.Using timing or the mode of operation of controlled direct reading character positional information, small power consumption.
Description
Technical field
The present invention relates to a kind of direct-reading remote transmitting gas meter, in particular a kind of photo-electric passive direct-reading intelligent telemetering gas meter with plastic optical fiber sensing communication.
Background technology
Because the reading technology of photoelectric direct-reading remote transmitting gas meter is not e measurement technology, but a kind of location recognition technology based on photoelectric technology and microelectric technique, therefore it is unrelated with measurement form, certainty of measurement, measuring method, it may be said that be one kind " display mode " of tradition machinery formula table tool.
From the point of view of e measurement technology angle, photoelectric direct-reading is not double measurement, and what is directly read is mechanical counter encoder digital i.e. " window value ", the parameters such as the table truth of a matter, table constant need not be set in table, it is " meter reading " truly in the absence of cumulative errors without data storage.And, the device such as counter inside photoelectric sensing part in photoelectric direct reading gas meter and table tool is completely separate, and does not have Mechanical Contact, thus does not interfere with measuring accuracy.
At present, the outer rim that photo-electric direct-reading gas meter is typically in the character wheel of counter printing 0-9 positions of general gas table republishes specific markers, or various sizes of through hole is outputed on character wheel end face, again in character wheel periphery fixed photoelectric sensor and interlock circuit, two kinds of photoelectricity correlation and photo-electric reflection type are divided into.Photoelectricity correlation is the mode of axially mounted photoelectric device and circuit board between character wheel, and photo-electric reflection type is the mode that photoelectric device and circuit board are radially about installed in character wheel.
The content of the invention
The object of the invention is to provide the photoelectric sensor that a kind of use plastic optical fiber is constituted with optical transceiving device, and directly each character wheel positional information of counter in gas meter is read and realizes remote transmission.
For achieving the above object, the technical scheme is that, a kind of direct-reading intelligent telemetering gas meter based on plastic optical fiber sensing communication, its composition includes, combustion gas base table, mechanical counter, photoelectric sensor, it is characterised in that：The photoelectric sensor is made up of plastic optical fiber and single optical transceiver, encoded light reflection bar is provided with mechanical counter character wheel end face, one end of some plastic optical fibers connects several single optical transceivers, the other end of these plastic optical fibers, light and light-receiving end, end face is vertically just being provided with the end face of encoded light reflection bar to character wheel, and when character wheel rotates, the encoded light reflection bar of character wheel end face then passes through from plastic optical fiber end face frontal plane of projection successively.
In the above-mentioned technical solutions, three sections of light reflection bars of concentric circles and radius identical are provided with the mechanical counter each character wheel end face, three sections of light reflection bar circular arcs are respectively 24 degree to central angle, 96 degree and 60 degree, five plastic optical fibers are fixed with the plastic optical fiber fixed plate of character wheel side, this five plastic optical fibers are also that concentric circles is uniformly distributed, the central angle that plastic optical fiber is formed between any two is 72 degree, the luminous and light end face of five plastic optical fibers is vertical and the end face of encoded light reflection bar is provided with against character wheel, the distance of every plastic optical fiber range counter rotation axis is identical and identical with the radius distance of three sections of light reflection bar range counter rotation axis.
In the above-mentioned technical solutions, coded slice is set on each character wheel end face of the mechanical counter, concentric circles but the different encoded light reflection bar section of radius is printed with coded slice, form a binary system（8421 yards）Coded slice, four plastic optical fibers are provided with the fixed plate of character wheel side, the luminous and light end face of this four plastic optical fibers is vertical and the end face of encoded light reflection bar is provided with against character wheel, and this four radial distances of plastic optical fiber range counter rotation axis are identical with the radius distance of four layers of light reflection bar range counter rotation axis in coded slice.
In the above-mentioned technical solutions, the single optical transceiver works in a half duplex mode.
It is an advantage of the invention that
1. the luminous of plastic optical fiber, light end face abut character wheel end face or side face, and the light leakage that plastic optical fiber sends is few.Opto-electronic conversion sensitivity is high.
2. plastic optical fiber line footpath is thin, and generally within 1 millimeter, it abuts the light echo area on character wheel in addition, can improve the reading accuracy of character wheel position, also beneficial to the miniaturization of mechanical photoelectric coding counter.
3. plastic optical fiber can make single optical transceiver be placed in the outside of gas meter as optical signal transmission carrier.
4. the mode of operation of character wheel positional information is read using timing or by order, and power consumption is saved.
Brief description of the drawings
Fig. 1 is each several part composition of the present invention and signal converting transmission schematic diagram.
Fig. 2 is the photoelectric coding character wheel schematic diagram of the embodiment of the present invention one.
Fig. 3 is the photoelectric coding character wheel and plastic optical fiber fixed plate schematic diagram of the embodiment of the present invention one.
Fig. 4 is the photoelectric coding character wheel schematic diagram of the embodiment of the present invention two.
Fig. 5 is the photoelectric coding character wheel and plastic optical fiber fixed plate schematic diagram of the embodiment of the present invention two.
In the figures above, 1 is mechanical direct-reading gas meter, 2 is photoelectric coding counter, 3 is plastic optical fiber beam, 4 is single optical transceiver group, 5 is photoelectric coding treatment and communication module, 6 is battery, 7 is main website, 8 is collector, 21 is character wheel, 22 is that central angle is 24 degree of light reflection bars, 23 is that central angle is 96 degree of light reflection bars, 24 is that central angle is 60 degree of light angles of reflection, 31 is plastic optical fiber fixed plate, 32 is plastic optical fiber mounting hole, 33 is light reflection bar, 34 is character wheel, 41 is character wheel, 42 is light reflection printed board, 43 is light reflection bar, 44 is plastic optical fiber fixed plate, 45 is plastic optical fiber.
Specific embodiment
Embodiment one
In the present embodiment, photoelectricity coaxial coding counter has eight coaxial coding print wheels.The cylinder of each character wheel（That is annular circumferential face）On be sequentially distributed for human eye regard read " 0-9 " ten numerals, as shown in Figure 2, three sections of light reflection bars of concentric radius of circle identical are provided with the end face of each character wheel 21, the arc angle of three sections of light reflection bars is respectively 24 degree, 96 degree and 60 degree, as shown in Figure 3, five plastic optical fibers are fixed with the plastic optical fiber fixed plate 31 of character wheel side, this five plastic optical fibers are uniformly distributed in a concentric circles, the central angle that plastic optical fiber is formed between any two is 72 degree, and the end face of five plastic optical fibers is close proximity to character wheel light reflection surface.The other end of this five plastic optical fibers connects five single optical transceivers, and single optical transceiver works in a half duplex mode.When character wheel rotates, three sections of light reflection bars pass through from five perspective planes of plastic optical fiber end face successively respectively on character wheel, when five single optical transceivers send monochromatic green glow, the green glow that five plastic optical fiber end faces send is radiated at character wheel light reflecting board, if certain plastic optical fiber sends green glow and is just radiated on character wheel section light reflection bar this moment, the plastic optical fiber can just receive reflection light, and produce electric signal in the single optical transceiver, represent " 1 " in binary system masurium.So, the optical signal that five plastic optical fibers and single optical transceiver send and receive in synchronization, just obtains position encoded information of the character wheel at this moment.The present embodiment uses binary gray code, and reliability is high.
Embodiment two
In the present embodiment, photoelectricity coaxial coding counter has eight coaxial coding print wheels.The cylinder of each character wheel（That is annular circumferential face）On be sequentially distributed and regard " 0-9 " ten numerals read for human eye, as shown in Figure 4, coded slice 42 is set on the end face of each character wheel 41, be printed with the different light reflection bar 43 of concentric radius of circle in coded slice 42, form a binary system（8421 yards）Coded slice, four plastic optical fiber endface positions that the correspondence of tetrad encoded light reflection bar 43 in coded slice 42 is placed in plastic optical fiber fixed plate 44.When character wheel 41 rotates, four layers of light reflection bar 43 respectively pass through from fixed plate 44 successively by the perspective plane of four plastic optical fiber end faces of setting on character wheel, when four single optical transceivers send monochromatic green glow, the green glow that four plastic optical fiber end faces send is radiated at character wheel light reflecting board, if certain plastic optical fiber sends green glow and is just radiated on character wheel layer section light reflection bar this moment, the plastic optical fiber can just receive reflection light, and electric signal is produced in corresponding single optical transceiver, represent " 1 " in binary system masurium.So, the optical signal that four plastic optical fibers and single optical transceiver send and receive in synchronization, just obtains position encoded information of the character wheel at this moment.This position encoded information of group enters row decoding and conversion process in pumped FIR laser treatment and communication module circuit, you can realize that character wheel of counter reading value is directly changed into electronic digital signal and is transferred to collector or main website by communication module.
In above-mentioned two embodiment, plastic optical fiber line footpath is 1 millimeter, and is set against light reflection bar, and leakage of light is few, intensity of reflected light loss decay is small, and measurement signal sensitivity is higher.The state of timing or controlled work is in due to single optical transceiver again, its micro power consumption, battery life can be greatly prolonged.
Claims (4)
1. a kind of that the direct-reading intelligent telemetering gas meter for communicating is sensed based on plastic optical fiber, its composition is included, combustion gas base table, mechanical counter, photoelectric sensor, it is characterised in that：The photoelectric sensor is made up of plastic optical fiber and single optical transceiver, encoded light reflection bar is provided with mechanical counter character wheel end face, one end of some plastic optical fibers connects several single optical transceivers, the other end of these plastic optical fibers, light and light-receiving end, end face is vertically just being provided with the end face of encoded light reflection bar to character wheel, and when character wheel rotates, the encoded light reflection bar of character wheel end face then passes through from plastic optical fiber end face frontal plane of projection successively.
It is 2. according to claim 1 that the direct-reading remote transmission intelligent gas meter, flow meter for communicating is sensed based on plastic optical fiber, it is characterised in that：Three sections of light reflection bars of concentric circles and radius identical are provided with the mechanical counter each character wheel end face, three sections of light reflection bar circular arcs are respectively 24 degree to central angle, 96 degree and 60 degree, five plastic optical fibers are fixed with the plastic optical fiber fixed plate of character wheel side, this five plastic optical fibers are also that concentric circles is uniformly distributed, the central angle that plastic optical fiber is formed between any two is 72 degree, the luminous and light end face of five plastic optical fibers is vertical and the end face of encoded light reflection bar is provided with against character wheel, the distance of every plastic optical fiber range counter rotation axis is identical and identical with the radius distance of three sections of light reflection bar range counter rotation axis.
It is 3. according to claim 1 that the direct-reading remote transmission intelligent gas meter, flow meter for communicating is sensed based on plastic optical fiber, it is characterised in that：Coded slice is set on the mechanical counter each character wheel end face, concentric circles but the different encoded light reflection bar section of radius are printed with coded slice, form a binary system（8421 yards）Coded slice, four plastic optical fibers are provided with the fixed plate of character wheel side, the luminous and light end face of this four plastic optical fibers is vertical and the end face of encoded light reflection bar is provided with against character wheel, and this four radial distances of plastic optical fiber range counter rotation axis are identical with the radius distance of four layers of light reflection bar range counter rotation axis in coded slice.
It is 4. according to claim 1 that the direct-reading remote transmission intelligent gas meter, flow meter for communicating is sensed based on plastic optical fiber, it is characterised in that：The single optical transceiver works in a half duplex mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511011628.2A CN106932044A (en) | 2015-12-30 | 2015-12-30 | Direct-reading intelligent telemetering gas meter based on plastic optical fiber sensing communication |
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| CN201511011628.2A CN106932044A (en) | 2015-12-30 | 2015-12-30 | Direct-reading intelligent telemetering gas meter based on plastic optical fiber sensing communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967080A (en) * | 2019-08-27 | 2020-04-07 | 南京工程学院 | Device for remote reading and transmission of natural gas meter readings |
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| CN2551974Y (en) * | 2002-07-04 | 2003-05-21 | 深圳市成星自动化系统有限公司 | Photoelectric apparatus for directly fetching number of mechanical counter |
| CN1782674A (en) * | 2004-12-05 | 2006-06-07 | 无锡市路通电子技术有限公司 | Optical fiber device for directly reading mechanical counter number |
| CN102221386A (en) * | 2011-05-23 | 2011-10-19 | 白皞 | Direct-reading optical fiber fuel gas meter |
| CN102629338A (en) * | 2012-04-28 | 2012-08-08 | 昆明佳晓自来水工程技术有限公司 | Instrument coding print wheel apparatus and coding method |
| CN205483129U (en) * | 2015-12-30 | 2016-08-17 | 南京宇能新能源科技有限公司 | Direct -reading intelligence remote gas meter based on communication of plastics optical fiber sensing |
-
2015
- 2015-12-30 CN CN201511011628.2A patent/CN106932044A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241886Y (en) * | 1995-08-08 | 1996-12-04 | 王俊锋 | Mechanical kilowatt-hour meter with digital signal output |
| CN2551974Y (en) * | 2002-07-04 | 2003-05-21 | 深圳市成星自动化系统有限公司 | Photoelectric apparatus for directly fetching number of mechanical counter |
| CN1782674A (en) * | 2004-12-05 | 2006-06-07 | 无锡市路通电子技术有限公司 | Optical fiber device for directly reading mechanical counter number |
| CN102221386A (en) * | 2011-05-23 | 2011-10-19 | 白皞 | Direct-reading optical fiber fuel gas meter |
| CN102629338A (en) * | 2012-04-28 | 2012-08-08 | 昆明佳晓自来水工程技术有限公司 | Instrument coding print wheel apparatus and coding method |
| CN205483129U (en) * | 2015-12-30 | 2016-08-17 | 南京宇能新能源科技有限公司 | Direct -reading intelligence remote gas meter based on communication of plastics optical fiber sensing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110967080A (en) * | 2019-08-27 | 2020-04-07 | 南京工程学院 | Device for remote reading and transmission of natural gas meter readings |
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