CN1442675A - Gauge meter remote copying detecting device - Google Patents
Gauge meter remote copying detecting device Download PDFInfo
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- CN1442675A CN1442675A CN 02104384 CN02104384A CN1442675A CN 1442675 A CN1442675 A CN 1442675A CN 02104384 CN02104384 CN 02104384 CN 02104384 A CN02104384 A CN 02104384A CN 1442675 A CN1442675 A CN 1442675A
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- detecting element
- trigger
- character wheel
- remote copying
- meter
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Abstract
A detector for the remote recording of water meter or gas meter is composed of numeral wheels, permanent magnet fixed to the highest-precision numeral wheel of meter, more than 2 detecting elements fixed outside the numerals wheel respectively, and logic judge circuit connected to said detecting elements respectively. The binary signals generated when numeral wheels rotate are input via detecting elements to logic judge circuit. After the interference pulses are filtered out, they are processed by computer.
Description
Technical field
The present invention relates to a kind of gauge meter remote copying detecting device.
Background technology
At present, the work of copying and accepting of water meter and gas meter is just gradually to intelligent transition in building and the sub-district, its method that adopts usually is: front end uses the table tool of belt switch amount output, water meter table tool as shown in Figure 1, the water meter character wheel whenever circles, export a passive switch signal, the switching value signal of kilowatt meter reading-out system remote copying table tool reaches the purpose that data are measured.In this system, switching signal comes from the action of the inner tongue tube of water meter, and the action of tongue tube is to be triggered by the permanent magnet that is fixed on the character wheel, because the water hammer of pipeline vibrations and pipeline, when tongue tube and permanent magnet are in the critical conditions of triggering, can produce a large amount of disturbing pulses, have a strong impact on its measuring accuracy.At present solution to this problem is: a permanent magnet is fixed in to represent water consumption be on 0.01 cubic metre the character wheel, the closure time of tongue tube is prolonged relatively, in order to distinguish disturbing pulse and normal burst, the software program by kilowatt meter reading-out system is again simultaneously further distinguished disturbing pulse and normal burst in the teletransmission process according to pulse width.The defective of this method is: because 0.01 cubic metre of character wheel is not to measure the most accurate character wheel of water consumption, it also is provided with measuring accuracy is 0.0001 cubic metre character wheel, so measuring accuracy is not high; And as user not during water, as shown in Figure 2, when detecting element is in when triggering critical conditions, though the false triggering narrow pulse signal f1 that is produced can discern, false triggering wide pulse signal f2 can't discern after teletransmission, causes mistake to be measured easily.
Summary of the invention
The objective of the invention is to: a kind of measuring accuracy height is provided, can overcomes fully in measurement and teletransmission process because of the water meter remote copying pick-up unit that shakes and the water hammer generation is disturbed.
For reaching the technical scheme that this purpose takes be: a kind of gauge meter remote copying detecting device, comprise character wheel Z, permanent magnet E and detecting element G, also comprise logic judging circuit L, permanent magnet E is fixed on the character wheel Z of table tool highest measurement precision position, two above detecting element G are fixed on the outside of character wheel Z, and logic judging circuit L is connected by lead with each detecting element G respectively.
Purpose of the present invention can also be achieved through the following technical solutions:
Logic judging circuit L is constituted by an above trigger D with door Y, each detecting element G links to each other with the input end of corresponding trigger D respectively, the output terminal of each trigger D and last road detecting element G link to each other with input end with door Y, be connected in the intelligent meter data recording computer system with the output terminal of door Y, also be connected in the reset terminal of each trigger D simultaneously.
Advantage compared with prior art of the present invention: owing to be provided with the multichannel detecting element on the full accuracy character wheel representing, the multichannel detecting element is connected with the computer system of intelligent meter data recording by logic judging circuit, can overcome the disturbing pulse of critical detected state, improve the precision that the table tool is measured and teletransmission is copied and accepted.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is existing water meter pick-up unit schematic diagram.
Fig. 2 is disturbing pulse synoptic diagram in existing water meter detection and the teletransmission process.
Fig. 3 is a water meter pick-up unit schematic diagram of the present invention.
Fig. 4 is a remote copying logic determines block diagram of the present invention.
Fig. 5 influences synoptic diagram for the present invention overcomes disturbing pulse.
Embodiment:
A kind of gauge meter remote copying detecting device that is used for water meter as shown in Figure 3, comprise character wheel Z, permanent magnet E and detecting element G, also comprise logic judging circuit L, a permanent magnet E is fixed on the highest measurement precision position of water meter, promptly on 0.0001 cubic metre of character wheel Z, the outside that two detecting element G1 that are made of thousand reed pipes and G2 are fixed on character wheel Z, its detection angles is θ.
As shown in Figure 4, logic judging circuit L is constituted by a trigger D with door Y, the signal end of detecting element G1 is connected in the input end of trigger D, the signal end I2 of the output terminal of trigger D and detecting element G2 links to each other with the input end with door Y, be connected in the intelligent meter data recording computer system with the output terminal of door Y, also be connected in the reset terminal R of trigger D simultaneously.
As shown in Figure 5, coordinate axis I1, I2 and Q represent respectively detecting element G1, G2 and with the signal output intensity of door Y, coordinate axis T express time, character wheel Z whenever circles, detecting element G1 and detecting element G2 successively respectively send a pulse, during this period, because of might producing, vibrations and water hammer disturb burst pulse f1, f2 or interference broad pulse f3, f4; The trigger pip of detecting element G1 keeps through trigger D, when it with the trigger pip of detecting element G2 with after, export control signal; In the rotation period of character wheel Z, behind any interference burst pulse and the interference broad pulse process logic judging circuit L, can both guarantee that character wheel Z revolution is moving only produces an effective output signal week, so just thoroughly solved because the mistake pulse detection that vibrations and water hammer cause, every cubic metre of water of this table can accurately be exported 1000 pulses, is significantly improved than the measuring accuracy of existing water meter.
Claims (2)
1, a kind of gauge meter remote copying detecting device comprises character wheel Z, permanent magnet E and detecting element G, it is characterized in that: also comprise logic judging circuit L; Permanent magnet E is fixed on the character wheel Z of table tool, and two above detecting element G are fixed on the outside of character wheel Z, and logic judging circuit L is connected by lead with each detecting element G respectively.
2, according to the described a kind of gauge meter remote copying detecting device of claim 1, it is characterized in that: described logic judging circuit L is constituted by an above trigger D with door Y, each detecting element G links to each other with the input end of corresponding trigger D respectively, the output terminal of each trigger D and last road detecting element G link to each other with input end with door Y, be connected in the intelligent meter data recording computer system with the output terminal of door Y, also be connected in the reset terminal of each trigger D simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104384 CN1442675A (en) | 2002-03-05 | 2002-03-05 | Gauge meter remote copying detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104384 CN1442675A (en) | 2002-03-05 | 2002-03-05 | Gauge meter remote copying detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1442675A true CN1442675A (en) | 2003-09-17 |
Family
ID=27793124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02104384 Pending CN1442675A (en) | 2002-03-05 | 2002-03-05 | Gauge meter remote copying detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1442675A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596854A (en) * | 2018-12-03 | 2019-04-09 | 湖南湘依铁路机车电器股份有限公司 | Velocity sensor is avoided to generate the method and structure of accidentally pulse when stopping shake |
-
2002
- 2002-03-05 CN CN 02104384 patent/CN1442675A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596854A (en) * | 2018-12-03 | 2019-04-09 | 湖南湘依铁路机车电器股份有限公司 | Velocity sensor is avoided to generate the method and structure of accidentally pulse when stopping shake |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |