CN103791973A - Non-core coil induction type meter data collection device - Google Patents
Non-core coil induction type meter data collection device Download PDFInfo
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- CN103791973A CN103791973A CN201410083151.8A CN201410083151A CN103791973A CN 103791973 A CN103791973 A CN 103791973A CN 201410083151 A CN201410083151 A CN 201410083151A CN 103791973 A CN103791973 A CN 103791973A
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- 230000006698 induction Effects 0.000 title claims abstract description 49
- 238000013480 data collection Methods 0.000 title abstract 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 105
- 239000002184 metal Substances 0.000 claims abstract description 105
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000001939 inductive effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000012634 fragment Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
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- 238000007790 scraping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention relates to a remote meter reading system and provides a non-core coil induction type meter data collection device. The device solves the problems that a data collection device in an existing remote meter reading system is complex in technology, low in metering accuracy and prone to generating errors. According to the technical scheme, the non-core coil induction type meter data collection device comprises a character wheel and is characterized in that the device further comprises a non-contact inductive transducer and a peripheral circuit, the non-contact inductive transducer comprises a specially-shaped sheet metal part and a non-core induction coil, the specially-shaped sheet metal part is arranged on the side face of the character wheel, deformation of the specially-shaped sheet metal part corresponds to figures on the outer circle of the character wheel, the non-core induction coil is installed at the same side with the specially-shaped sheet metal part relative to the character wheel and corresponds to the specially-shaped sheet metal part, and the non-core induction coil is connected with the peripheral circuit. The non-core coil induction type meter data collection device has the advantages of being simple in technology and accuracy in data.
Description
Technical field
The present invention relates to long-distance meter-reading system, particularly the data acquisition technology in long-distance meter-reading system.
Background technology
Common gas meter, flow meter or tap water meter are mechanical gas table or mechanical type tap water meter, and its counting principle is to utilize the mobile drive count code wheel rotation of combustion gas or current to count, and realize automatic data logging, need to convert the rotation of counting code wheel to electric signal.Seen remote meter reading is divided into two classes substantially in the market, and a class is pulsed, and another kind of is direct reading.
The sensor of pulsed long-distance meter-reading system, it is data collector, mainly formed by tongue tube and magnet steel, magnet steel is arranged on character wheel, and in the time that character wheel rotates, magnet steel also rotates thereupon, magnet steel is during near tongue tube, the shell fragment adhesive of tongue tube, when magnet steel leaves tongue tube, the shell fragment of tongue tube disconnects, and adhesive or the off-state of the shell fragment of Acquisition Circuit by judging tongue tube realize counting.Mainly there is following defect in pulsed long-distance meter-reading system: 1) counts inaccurate, in the time having external magnetic field to disturb near gas meter, flow meter or tap water meter, data are inaccurate, easily shake when the shell fragment adhesive of tongue tube or while disconnecting, these factors all can cause count inaccurate; 2) pulse sensor is owing to being to adopt the mode of accumulated counts, and Acquisition Circuit needs long-term power supply, as power-off Acquisition Circuit cannot work, meter is leaked in pulse, can cause data phenomenon on the low side.
Direct-reading long-distance meter-reading system mainly contains two kinds of resistance-type and photo-electrics, is called resistance-type direct-reading gage and photo-electric direct-reading gage.
In resistance-type direct-reading gage, the principle of work of data collector is: by the hard contact of installing on character wheel, from the different resistance contacts on corresponding circuit board, identify the position of character wheel by different resistance values, resistance-type direct-reading gage implementation method is to fixedly mount circuit board between the character wheel of mechanical counter, on circuit board, be uniformly distributed 10 fan-shaped sheet metals, composition and the sizable circle of character wheel, this sheet metal is connected different resistance, on each character wheel, hard contact is installed, after assembling, can contact with circuit board, like this in the time that character wheel turns to a certain position, contact just contacts different circuit boards, can produce different resistance values, numeral on the corresponding counter of each resistance value, then obtain corresponding data by Acquisition Circuit processing, complete meter reading operation.The feature of resistance-type direct-reading gage is: can directly read the data character wheel from the data of Acquisition Circuit output, at ordinary times without power supply, principle is simple, realize easily, in general device can embed in table, change less to former list structure, this mode has realized the direct-reading of wheel digital, but also there are some problems: 1) measurement problem, character wheel belongs to the metering pen recorder of resistance-type direct-reading gage, in the time having external force to be in contact with it, can affect metering performance, this needs the character wheel group of resistance-type direct-reading gage producer redesign resistance-type direct-reading gage to reduce friction, this way of contact can produce mobile impact to the rotation of character wheel through long-time friction, 2) technological problems, because this contact is Mechanical Contact, installation process is depended in its contact force and position, and character wheel group has intrinsic gap error, increases after circuit board, the Edge Distance of circuit board and character wheel is nearer, cannot detect at installation rear high-lying character wheel, can produce like this because installation accuracy causes high-order character wheel and circuit board scraping impact and rotate, simultaneously, installation procedure and precision are all had relatively high expectations, and are unfavorable for batch production, 3) operation problem, because contact is mainly to identify by resistance mode, and resistance can be with temperature, contact point and changing, the temperature of resistance is floated with bad contact of contact may cause measuring blind area or erroneous judgement, and long-time running is difficult to guarantee reliability, produces sometimes misread phenomenon.
In photo-electric direct-reading gage, the principle of work of data collector is: republish specific markers (or the hole of opening different size on character wheel) at the edge of character wheel of counter printing 0～9 position of general gas table or tap water meter, at its peripheral fixed light electric transducer and interlock circuit, when externally fed meter reading, judge that by photoelectric sensor specific markers " has " and the state of " nothing ", judge to obtain the reading (being window value) of character wheel by assembly coding.The analog measurement mode that this side's ratio juris is no longer resistance-type, but by character wheel is set up to mathematical model, calculate through combination, draw correct reading.The photo-electric direct-reading gage adopting at present mainly contains two kinds of photoelectricity correlation (transmission) formula and photo-electric reflection types, its key distinction is that physical construction is different with mathematical algorithm, photoelectricity correlation (transmission) formula is the mode that photoelectric device and circuit board are installed between character wheel, and photo-electric reflection type is the mode that photoelectric device and circuit board are installed around character wheel.Photo-electric direct-reading gage has following characteristics: directly read counter code-disc numeral (being each character wheel window numeral) and obtain " window value ", in table, do not need to arrange the parameter such as the table truth of a matter, table constant, without storage data, there are not cumulative errors, really realize " meter reading ", the be through with history of accumulative total pulse, conversion numerical value, in direct-reading gage, the device such as electronic section and counter does not have Mechanical Contact to separate completely, does not affect measuring accuracy.Self yet there is following defect in photoelectric direct-reading meter: 1) interference free performance in some shortcomings that overcome resistance-type direct-reading gage: adopt infrared light photoelectric sensor, infrared receiving tube is easy to be subject to the impact of extraneous infrared light or natural light, even can cause sensor cannot work completely at extreme environment; 2) data accuracy: present character wheel of photo-electric direct-reading gage is general adopts five pairs of infrared sensors to come " reading ", five pairs of sensors can be differentiated at most 32 kinds of states in theory, but character wheel particularly high-order character wheel at one, the rotation in is among a small circle a continuous process, the character wheel " reading " in this time can only come by software " estimation ", run into multiple character wheels simultaneously carry in the situation that software " estimation " data out insecure often, in actual application process, also found such problem; 3) complex process need to be installed a lot of electrooptical devices on the character wheel of mechanical counter, causes cost higher simultaneously.Summary of the invention
Technical matters to be solved by this invention, in order to solve complex process and the not high shortcoming that is prone to error of measuring accuracy of data collector in present long-distance meter-reading system, provides a kind of coreless coil induction type gauge outfit data collector exactly.
The present invention solve the technical problem, the technical scheme adopting is, coreless coil induction type gauge outfit data collector, comprise character wheel, it is characterized in that, also comprise contactless inductance sensor and peripheral circuit, described contactless inductance sensor comprises profiled metal sheet metal component and coreless induction coil, described profiled metal sheet metal component is arranged on character wheel side, the distortion of described profiled metal sheet metal component is corresponding with the numeral of character wheel outer ring, coreless induction coil is arranged on the homonymy of the relative character wheel of profiled metal sheet metal component, corresponding with profiled metal sheet metal component, coreless induction coil is connected with peripheral circuit.
Concrete, described profiled metal sheet metal component is the not closed circle structure of inductance gradual change, its center of circle is concentric with character wheel.
Further, described profiled metal sheet metal component with respect to the flat shape of character wheel side is: by spiral of Archimedes one, the closed interval of spiral of Archimedes two and one line segment composition, the extended line of described line segment is crossing with the character wheel center of circle, spiral of Archimedes one is contrary with the hand of spiral of spiral of Archimedes two, the starting point of spiral of Archimedes one is line segment one end near first center of circle, its terminal is crossing with the starting point of spiral of Archimedes two, be designated as summit, the terminal of spiral of Archimedes two is the other end of line segment, it is the character wheel center of circle that the mid point of this summit and line segment is all positioned at the center of circle, and on the circle that radius is R, it is 1/10 of the character wheel center of circle and the radius circumference that is R that the mid point of described line segment is less than this center of circle to the bee-line on this summit, and the shortest route on these line segment two ends and summit is not all by spiral of Archimedes one, in the closed interval that spiral of Archimedes two and this line segment form.
Concrete, described coreless induction coil is corresponding with profiled metal sheet metal component refers to that coreless induction coil remains that its center of circle is on circle concentric with character wheel and that radius is R.
Further, the distance between described coreless induction coil and profiled metal sheet metal component is less than 1.5 times of coreless induction coil outer diameter.
Concrete, the thickness of described profiled metal sheet metal component is 0.5 millimeter.
Further, described profiled metal sheet metal component is aluminum profiled metal sheet metal component or stainless steel profiled metal sheet metal component or conductive ink profiled metal sheet metal component processed.
The invention has the beneficial effects as follows, by above-mentioned coreless coil induction type gauge outfit data collector, it utilizes profiled metal sheet metal component and coreless induction coil to respond in real time, accurately converse the shown data message of character wheel by induced flux information, technique is simple, data are accurate, and strong interference immunity.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, coreless coil induction type gauge outfit data collector is arranged on the schematic diagram on character wheel.
Wherein, 101 is profiled metal sheet metal component, and 102 is coreless induction coil, and 103 is character wheel.
Embodiment
Below in conjunction with drawings and Examples, describe technical scheme of the present invention in detail.
Coreless coil induction type gauge outfit data collector of the present invention, by character wheel 103, contactless inductance sensor and peripheral circuit composition, wherein, contactless inductance sensor comprises profiled metal sheet metal component 101 and coreless induction coil 102, profiled metal sheet metal component 101 is arranged on character wheel 103 sides, the distortion of described profiled metal sheet metal component 101 is corresponding with the numeral of character wheel 103 outer rings, coreless induction coil 102 is arranged on the homonymy of profiled metal sheet metal component 101 relative character wheels 103, corresponding with profiled metal sheet metal component 101, coreless induction coil 102 is connected with peripheral circuit.
Embodiment
This routine coreless coil induction type gauge outfit data collector is arranged on schematic diagram on character wheel as shown in Figure 1.
The coreless coil induction type gauge outfit data collector that this is routine, by character wheel 103, contactless inductance sensor and peripheral circuit composition, wherein, contactless inductance sensor comprises profiled metal sheet metal component 101 and coreless induction coil 102, profiled metal sheet metal component 101 is arranged on character wheel 103 sides, the distortion of described profiled metal sheet metal component 101 is corresponding with the numeral of character wheel 103 outer rings, coreless induction coil 102 is arranged on the homonymy of profiled metal sheet metal component 101 relative character wheels 103, corresponding with profiled metal sheet metal component 101, coreless induction coil 102 is connected with peripheral circuit.
Here, profiled metal sheet metal component 101 is the not closed circle structure of inductance gradual change, its center of circle is concentric with character wheel 103, as shown in Figure 1, profiled metal sheet metal component 101 with respect to the flat shape of character wheel side is: by spiral of Archimedes one, the closed interval of spiral of Archimedes two and one line segment composition, the extended line of described line segment is crossing with the character wheel center of circle, spiral of Archimedes one is contrary with the hand of spiral of spiral of Archimedes two, the starting point of spiral of Archimedes one is line segment one end near first center of circle, its terminal is crossing with the starting point of spiral of Archimedes two, be designated as summit, the terminal of spiral of Archimedes two is the other end of line segment, it is the character wheel center of circle that the mid point of this summit and line segment is all positioned at the center of circle, and on the circle that radius is R, it is 1/10 of the character wheel center of circle and the radius circumference that is R that the mid point of described line segment is less than this center of circle to the bee-line on this summit, and the shortest route on these line segment two ends and summit is not all by spiral of Archimedes one, in the closed interval that spiral of Archimedes two and this line segment form.Now coreless induction coil 102 is corresponding with profiled metal sheet metal component 101 refers to that coreless induction coil 102 remains that its center of circle is on circle concentric with character wheel and that radius is R, if and distance between coreless induction coil 102 and profiled metal sheet metal component 101 is while being less than 1.5 times of coreless induction coil 102 external diameters, it can have good inductive effects, and the thickness of profiled metal sheet metal component 101 can be aluminum profiled metal sheet metal component or stainless steel profiled metal sheet metal component or the conductive ink profiled metal sheet metal component processed of 0.5 millimeter.
Because the distortion of profiled metal sheet metal component 101 is corresponding with the numeral of character wheel 103 outer rings, therefore when character wheel rotates, when its window numerical value (showing data) changes, coreless induction coil-induced to magnetic flux must change, thereby can go out by the change calculations of magnetic flux the window numerical value of current character wheel.
Claims (7)
1. coreless coil induction type gauge outfit data collector, comprise character wheel, it is characterized in that, also comprise contactless inductance sensor and peripheral circuit, described contactless inductance sensor comprises profiled metal sheet metal component and coreless induction coil, described profiled metal sheet metal component is arranged on character wheel side, the distortion of described profiled metal sheet metal component is corresponding with the numeral of character wheel outer ring, coreless induction coil is arranged on the homonymy of the relative character wheel of profiled metal sheet metal component, corresponding with profiled metal sheet metal component, coreless induction coil is connected with peripheral circuit.
2. coreless coil induction type gauge outfit data collector according to claim 1, is characterized in that, described profiled metal sheet metal component is the not closed circle structure of inductance gradual change, and its center of circle is concentric with character wheel.
3. coreless coil induction type gauge outfit data collector according to claim 2, it is characterized in that, described profiled metal sheet metal component with respect to the flat shape of character wheel side is: by spiral of Archimedes one, the closed interval of spiral of Archimedes two and one line segment composition, the extended line of described line segment is crossing with the character wheel center of circle, spiral of Archimedes one is contrary with the hand of spiral of spiral of Archimedes two, the starting point of spiral of Archimedes one is line segment one end near first center of circle, its terminal is crossing with the starting point of spiral of Archimedes two, be designated as summit, the terminal of spiral of Archimedes two is the other end of line segment, it is the character wheel center of circle that the mid point of this summit and line segment is all positioned at the center of circle, and on the circle that radius is R, it is 1/10 of the character wheel center of circle and the radius circumference that is R that the mid point of described line segment is less than this center of circle to the bee-line on this summit, and the shortest route on these line segment two ends and summit is not all by spiral of Archimedes one, in the closed interval that spiral of Archimedes two and this line segment form.
4. coreless coil induction type gauge outfit data collector according to claim 3, it is characterized in that, it is on the circle that character wheel is concentric and radius is R that the mid point that described coreless induction coil is corresponding with profiled metal sheet metal component refers to coreless induction coil remains at the center of circle.
5. coreless coil induction type gauge outfit data collector according to claim 4, is characterized in that, the distance between described coreless induction coil and profiled metal sheet metal component is less than 1.5 times of coreless induction coil outer diameter.
6. coreless coil induction type gauge outfit data collector according to claim 1, is characterized in that, the thickness of described profiled metal sheet metal component is 0.5 millimeter.
7. according to coreless coil induction type gauge outfit data collector described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, described profiled metal sheet metal component is aluminum profiled metal sheet metal component or stainless steel profiled metal sheet metal component or conductive ink profiled metal sheet metal component processed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083151.8A CN103791973B (en) | 2014-03-07 | 2014-03-07 | Non-core coil induction type meter data collection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083151.8A CN103791973B (en) | 2014-03-07 | 2014-03-07 | Non-core coil induction type meter data collection device |
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| CN103791973A true CN103791973A (en) | 2014-05-14 |
| CN103791973B CN103791973B (en) | 2017-05-10 |
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| CN201410083151.8A Expired - Fee Related CN103791973B (en) | 2014-03-07 | 2014-03-07 | Non-core coil induction type meter data collection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089674A (en) * | 2014-07-22 | 2014-10-08 | 陈健 | Gauge table reading type wheel |
| CN106643822A (en) * | 2016-12-23 | 2017-05-10 | 艾特仪表科技（深圳）有限公司 | Character wheel encoder and direct reading method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2943184A1 (en) * | 1979-10-25 | 1981-05-07 | AOA Apparatebau Gauting GmbH, 8035 Gauting | Driven wheel fluid flow meter - has inductive speed measurement consisting of sensors and elements of different magnetic resistance |
| CN201780133U (en) * | 2009-12-02 | 2011-03-30 | 苏州银河龙芯科技有限公司 | Magnetic sensing direct reading character wheels of hydroscope |
| CN102200459A (en) * | 2010-03-26 | 2011-09-28 | 河南新天科技股份有限公司 | Direct reading gauge |
| CN202533130U (en) * | 2012-04-23 | 2012-11-14 | 陈健 | Number reading wheel of gauge |
| CN203719722U (en) * | 2014-03-07 | 2014-07-16 | 四川恒芯科技有限公司 | Coreless coil induction type header data acquisition device |
-
2014
- 2014-03-07 CN CN201410083151.8A patent/CN103791973B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2943184A1 (en) * | 1979-10-25 | 1981-05-07 | AOA Apparatebau Gauting GmbH, 8035 Gauting | Driven wheel fluid flow meter - has inductive speed measurement consisting of sensors and elements of different magnetic resistance |
| CN201780133U (en) * | 2009-12-02 | 2011-03-30 | 苏州银河龙芯科技有限公司 | Magnetic sensing direct reading character wheels of hydroscope |
| CN102200459A (en) * | 2010-03-26 | 2011-09-28 | 河南新天科技股份有限公司 | Direct reading gauge |
| CN202533130U (en) * | 2012-04-23 | 2012-11-14 | 陈健 | Number reading wheel of gauge |
| CN203719722U (en) * | 2014-03-07 | 2014-07-16 | 四川恒芯科技有限公司 | Coreless coil induction type header data acquisition device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089674A (en) * | 2014-07-22 | 2014-10-08 | 陈健 | Gauge table reading type wheel |
| CN106643822A (en) * | 2016-12-23 | 2017-05-10 | 艾特仪表科技（深圳）有限公司 | Character wheel encoder and direct reading method |
| CN106643822B (en) * | 2016-12-23 | 2020-05-12 | 艾特仪表科技（深圳）有限公司 | Character wheel encoder and direct reading method |
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