CN203396434U - Capacitive digital water meter reading device - Google Patents
Capacitive digital water meter reading device Download PDFInfo
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- CN203396434U CN203396434U CN201320361965.4U CN201320361965U CN203396434U CN 203396434 U CN203396434 U CN 203396434U CN 201320361965 U CN201320361965 U CN 201320361965U CN 203396434 U CN203396434 U CN 203396434U
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Abstract
The utility model discloses a capacitive digital water meter reading device. A capacitor is formed by a metal water meter pointer and metal coatings in different areas, and a high-frequency signal channel is formed, so that the position of the pointer is detected. The capacitive digital water meter reading device has stable performance, higher precision, lower cost, low power consumption, and wide application range, and is not influenced by poor working environment by adopting a non-contact measurement mode.
Description
Technical field
the utility model relates to water meter field, is specially a kind of capacitance digital meter reading device.
Background technology
Indicator of water gauge electronical reading obtains meter reading signal by detecting indicator of water gauge position.At present, water meter is just towards digitizing, intelligentized future development, automatically detection, automatic reading, nobody checks meter becomes the standard that intellectual water meter is new.Yet the development of new water meter faces two maximum problems: on the one hand, the working environment of water meter is comparatively severe, require the meter reading system can be in dirty liquid, under magnetic interference, low-power consumption stably works long hours; On the other hand, the feature in water meter market has determined that new water meter need to be compatible with conventional water meter, and holistic cost must be lower.The method that indicator of water gauge electronical reading system adopts at present mainly contains photoelectric sensor, inductance sensor, Wiegand sensor, CCD/CMOS imageing sensor etc.Photoelectric sensor power consumption is larger, and poor for the measurement effect of dirty liquid; Inductance sensor manufacturing cost is high and be easily subject to ambient electromagnetic field and disturb; It is very large that Wiegand sensor is subject to ambient electromagnetic field interference, job insecurity; CCD/CMOS imageing sensor power consumption is large, poor and system complex is with high costs for the measurement effect of dirty liquid.These sensors are not suitable in rugged environment, for a long time without maintenance work, also cannot meeting the demand in real water meter market.
Utility model content
The purpose of this utility model is to provide a kind of capacitance digital meter reading device, higher to solve in existing digital and electronic water meter technology cost, power consumption is excessive, is subject to environment electromagnetics impact, cannot in dirty liquid, work, be difficult to the long-time problem without maintenance work.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of capacitance digital meter reading device, include table body, by metal rotating shaft, be rotatably installed in the metal water list index on table body, it is characterized in that: on table body, be provided with and cover on the watch glasses that the transparent dielectric material outside metal water list index is made, watch glasses outer wall embeds the reading dial corresponding with metal water list index position, and reading dial center is on metal water list index metal rotating shaft center line extended line, on described reading dial, along even circumferential scale, there is reading, on reading dial between adjacent reading, be provided with the annular coat of metal of fan, on reading dial, the multistage coat of metal has identical fan-shaped angle energy complete circle, the insulator that makes the insulation of adjacent metal coating is set between adjacent metal coating, also include microprocessor and access respectively the high-frequency signal circuit for generating of microprocessor, high-frequency signal testing circuit, the signal output part of described high-frequency signal circuit for generating is electrically connected to by wire with metal water list index, on reading dial, the multistage coat of metal is electrically connected to the signal input part of high-frequency signal testing circuit by wire respectively.
Described a kind of capacitance digital meter reading device, it is characterized in that: on reading dial, along circumference, be divided into ten fan annular regions, each fan annular region angle is respectively 36 degree, the multistage coat of metal, with corresponding being arranged in each fan annular region one by one of the shape with fan annular coupling, insulate by insulator between adjacent metal coating.
Described a kind of capacitance digital meter reading device, is characterized in that: the described coat of metal is trapezoidal, and the multistage coat of metal is of similar shape and the regular polygon of multistage coat of metal energy complete.
Described a kind of capacitance digital meter reading device, is characterized in that: described watch glasses is that glass material is made.
Described a kind of capacitance digital meter reading device, is characterized in that: on described reading dish, be provided with and draw pad, the wire on a plurality of coats of metal leads to respectively the signal input part of high-frequency signal testing circuit by drawing pad winding displacement.
Described a kind of capacitance digital meter reading device, it is characterized in that: in described table body, be provided with metal bearing, metal rotating shaft is rotatably installed in metal bearing, wire on high-frequency signal circuit for generating signal output part is electrically connected to metal bearing, thereby forms high-frequency signal circuit for generating to the complete high-frequency signal path of metal water list index.
The utility model principle of work is: on the watch glasses that metal water list index, dielectric substance are made, the current corresponding reading dial of metal water list index, between coat of metal three, form electric capacity, high-frequency signal circuit for generating loads high-frequency signal on metal water list index, according to the characteristic of the logical high frequency resistance of electric capacity low frequency, high-frequency signal can reach on the coat of metal of reading dial by electric capacity, and then whether have high-frequency signal can obtain pointed orientation by detecting each independent coat of metal on reading dial, thereby obtain total indicator reading.
The utility model advantage is: the utility model stable performance, and precision is higher, and cost is lower, and power consumption is lower; Adopt non-contact measurement, when using operation, be not subject to the impact of severe working environment, applied widely.
Accompanying drawing explanation
Fig. 1 is the utility model structural principle schematic diagram.
Fig. 2 is the utility model principle of work block diagram.
Fig. 3 is that on the utility model reading dial, the coat of metal is divided schematic diagram.
Fig. 4 is the utility model one-piece construction schematic perspective view.
Embodiment
As Figure 1-Figure 4.A kind of capacitance digital meter reading device, include table body 1, by metal rotating shaft 2, be rotatably installed in the metal water list index 3 on table body 1, on table body 1, be provided with and cover on the watch glasses 4 that the transparent dielectric material outside metal water list index 3 is made, watch glasses 4 outer walls embed the reading dial 5 corresponding with metal water list index 3 positions, and reading dial 5 centers are on metal water list index 3 metal rotating shaft 2 center line extended lines, on reading dial 5, along even circumferential scale, there is reading, on reading dial 5 between adjacent reading, be provided with the annular coat of metal of fan, on reading dial 5, the multistage coat of metal has identical fan-shaped angle energy complete circle, the insulator that makes the insulation of adjacent metal coating is set between adjacent metal coating, also include microprocessor and access respectively the high-frequency signal circuit for generating of microprocessor, high-frequency signal testing circuit, the signal output part of high-frequency signal circuit for generating is electrically connected to by wire with metal water list index 3, on reading dial 5, the multistage coat of metal is electrically connected to the signal input part of high-frequency signal testing circuit by wire respectively.
On reading dial 5, along circumference, be divided into ten fan annular regions, each fan annular region angle is respectively 36 degree, the multistage coat of metal, with corresponding being arranged in each fan annular region one by one of the shape with fan annular coupling, insulate by insulator between adjacent metal coating.
The coat of metal is trapezoidal, and the multistage coat of metal is of similar shape and the regular polygon of multistage coat of metal energy complete.
Watch glasses 4 is made for glass material.
On reading dish 5, be provided with and draw pad, the wire on a plurality of coats of metal leads to respectively the signal input part of high-frequency signal testing circuit by drawing pad winding displacement.
In table body 1, be provided with metal bearing, metal rotating shaft 2 is rotatably installed in metal bearing, wire on high-frequency signal circuit for generating signal output part is electrically connected to metal bearing, thereby forms high-frequency signal circuit for generating to the complete high-frequency signal path of metal water list index 3.
In the utility model, meter reading system is comprised of microprocessor, high-frequency signal circuit for generating, metal water list index, reading dial, high-frequency signal testing circuit.Reading dial surface construction ten mutually insulated coats of metal as shown in Figure 3, and draw by lead-in wire.During water meter work, metal water list index is in rotary state; During reading, one in metal water list index and ten coats of metal in relative position, thereby forms electric capacity, and glass watch glasses is as dielectric.During reading, the high-frequency signal circuit for generating being connected with metal water list index produces high-frequency signal, according to the characteristic of the logical high frequency resistance of electric capacity low frequency, can on the coat of metal relative with referring to metal water list index, produce high-frequency signal.High-frequency signal testing circuit detects the coat of metal that produces high-frequency signal, thereby determines the position of pointer.According to the current reading of position judgment water meter of pointer.
In the utility model, the every coat of metal is that angle is the fan ring of 36 degree, or trapezoidal.The every coat of metal between the adjacent reading of water meter, mutually insulated between the coat of metal, and drawing by lead-in wire.Reading dial can be embedded on glass watch glasses, utilizes glass as stable dielectric.Metal water list index is connected with high-frequency signal circuit for generating, and during reading, metal water list index will be with high-frequency signal, and by capacity effect, high-frequency signal is transferred to a certain coat of metal on corresponding with it reading dial.High-frequency signal testing circuit is connected with ten coats of metal on reading dial, detects the high-frequency signal on each coating during reading, and microprocessor judges metal water list index position according to this.Draw meter reading.
The utility model carries out indicator of water gauge reading based on capacity effect, and its simple structure is cheap, little interference by environment, and power consumption is extremely low.Reason is: 1, affected by environmental magnetic field minimum for capacity effect.2, the method utilizes water gage glass protective cover as stable dielectric, be subject to water quality impact very little by 3, can adopt the P.e.c. fabrication process sensors such as ripe engraving, corrosion, properties of product are stable, yields is high, cheap, be beneficial to reduction system cost, dominate the market rapidly.4, overcome the shortcoming that traditional sensors needs real-time working, this method only need when reading of short duration work, has reduced sensor power consumption, has reduced overall system power consumption simultaneously.These advantages make this detection method be beneficial to the low-power consumption reading of water meter, be beneficial to water meter under various severe working environments comparatively for a long time without maintenance work.
Claims (6)
1. a capacitance digital meter reading device, include table body, by metal rotating shaft, be rotatably installed in the metal water list index on table body, it is characterized in that: on table body, be provided with and cover on the watch glasses that the transparent dielectric material outside metal water list index is made, watch glasses outer wall embeds the reading dial corresponding with metal water list index position, and reading dial center is on metal water list index metal rotating shaft center line extended line, on described reading dial, along even circumferential scale, there is reading, on reading dial between adjacent reading, be provided with the annular coat of metal of fan, on reading dial, the multistage coat of metal has identical fan-shaped angle energy complete circle, the insulator that makes the insulation of adjacent metal coating is set between adjacent metal coating, also include microprocessor and access respectively the high-frequency signal circuit for generating of microprocessor, high-frequency signal testing circuit, the signal output part of described high-frequency signal circuit for generating is electrically connected to by wire with metal water list index, on reading dial, the multistage coat of metal is electrically connected to the signal input part of high-frequency signal testing circuit by wire respectively.
2. a kind of capacitance digital meter reading device according to claim 1, it is characterized in that: on reading dial, along circumference, be divided into ten fan annular regions, each fan annular region angle is respectively 36 degree, the multistage coat of metal, with corresponding being arranged in each fan annular region one by one of the shape with fan annular coupling, insulate by insulator between adjacent metal coating.
3. a kind of capacitance digital meter reading device according to claim 1, is characterized in that: the described coat of metal is trapezoidal, and the multistage coat of metal is of similar shape and the regular polygon of multistage coat of metal energy complete.
4. a kind of capacitance digital meter reading device according to claim 1, is characterized in that: described watch glasses is that glass material is made.
5. a kind of capacitance digital meter reading device according to claim 1, it is characterized in that: on described reading dish, be provided with and draw pad, the wire on a plurality of coats of metal leads to respectively the signal input part of high-frequency signal testing circuit by drawing pad winding displacement.
6. a kind of capacitance digital meter reading device according to claim 1, it is characterized in that: in described table body, be provided with metal bearing, metal rotating shaft is rotatably installed in metal bearing, wire on high-frequency signal circuit for generating signal output part is electrically connected to metal bearing, thereby forms high-frequency signal circuit for generating to the complete high-frequency signal path of metal water list index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320361965.4U CN203396434U (en) | 2013-06-24 | 2013-06-24 | Capacitive digital water meter reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320361965.4U CN203396434U (en) | 2013-06-24 | 2013-06-24 | Capacitive digital water meter reading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396434U true CN203396434U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320361965.4U Expired - Fee Related CN203396434U (en) | 2013-06-24 | 2013-06-24 | Capacitive digital water meter reading device |
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| CN (1) | CN203396434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335685A (en) * | 2013-06-24 | 2013-10-02 | 安徽大学 | Capacitive digital water meter reader |
-
2013
- 2013-06-24 CN CN201320361965.4U patent/CN203396434U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335685A (en) * | 2013-06-24 | 2013-10-02 | 安徽大学 | Capacitive digital water meter reader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |