CN101290239B - Gas meter supporting remote meter-reading function - Google Patents

Gas meter supporting remote meter-reading function Download PDF

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Publication number
CN101290239B
CN101290239B CN2008100288494A CN200810028849A CN101290239B CN 101290239 B CN101290239 B CN 101290239B CN 2008100288494 A CN2008100288494 A CN 2008100288494A CN 200810028849 A CN200810028849 A CN 200810028849A CN 101290239 B CN101290239 B CN 101290239B
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CN
China
Prior art keywords
meter
signal
circuit
gas
fuel gas
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2008100288494A
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Chinese (zh)
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CN101290239A (en
Inventor
石浩波
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GUANGDONG ORIENT COMMUNICATION TECH Co Ltd
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GUANGDONG ORIENT COMMUNICATION TECH Co Ltd
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Application filed by GUANGDONG ORIENT COMMUNICATION TECH Co Ltd filed Critical GUANGDONG ORIENT COMMUNICATION TECH Co Ltd
Priority to CN2008100288494A priority Critical patent/CN101290239B/en
Publication of CN101290239A publication Critical patent/CN101290239A/en
Application granted granted Critical
Publication of CN101290239B publication Critical patent/CN101290239B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The present invention relates a fuel gas meter with remote meter-reading function supported by an electrical carrier wave technology. The fuel gas meter consists of a fuel gas signal acquisition device, a signal transmitting device and a main control device. The fuel gas signal acquisition device is arranged inside a housing and serially connected inside a fuel gas pipeline. The main control device is arranged inside another housing and is connected with the signal acquisition device through the signal transmitting device. The main control device comprises a singlechip and a memory, buttons, a display device and an electrical carrier wave communication module which are connected with the singlechip. The fuel gas meter adopts a sound vacuum transmitting device to separately place the fuel gas pipeline and the main control part of the meter with strong electricity so as to solve the safety problem. With the prior power line carrier wave technology of power circuitry, remote meter-reading of the fuel gas system is realized, thereby bringing convenience to the management of fuel gas companies and saving personnel cost.

Description

A kind of gas meter, flow meter of supporting remote meter-reading function
Technical field
The present invention relates to a kind of gas meter, flow meter, specifically be meant a kind of gas meter, flow meter that utilizes power line carrier technology to support remote meter-reading function.
Background technology
Water, electricity, combustion gas are the three big energy that it is essential that people live.In the past, each energy management company usually uses different gauging tables to come each energy usage of metering user, and needs large quantities of staff expense of taking over of regularly checking meter to the doorstep, and personnel cost is big, also often makes troubles to the user.
Continuous development along with technology; Various remote meter reading technology are also ripe gradually and be used widely; Wherein power line carrier technology adopts the band spectrum modulation communication modes because it is directly to utilize existing power circuit, and communication performance is reliable and stable; Cost is low, easy to be realized, therefore is widely used in electric system.But because the inflammable and explosive property of combustion gas, and power line carrier technology is the characteristics that data-signal and 220V high-voltage signal are together transmitted, and makes this technology be restricted in the application of gas burning system.
Summary of the invention
The problem that the present invention need solve provides the existing power circuit of a kind of utilization, supports the gas meter, flow meter of remote meter-reading function through power line carrier technology, and avoids its potential safety hazard.
For realizing above-mentioned purpose, the technical scheme of taking of the present invention is:
A kind of gas meter, flow meter is provided, is made up of combustion gas signal pickup assembly, sound vacuum transmitter, master control set, it is characterized in that: described combustion gas signal pickup assembly is installed in the shell, is serially connected on the gas pipeline; Master control set is installed in another shell, is connected with signal pickup assembly through sound vacuum transmitter; Master control set comprises single-chip microcomputer and the storer, button, display device, signal processing circuit, the power carrier communication circuit that are electrically connected with single-chip microcomputer.
Described combustion gas signal pickup assembly comprises a runner, and a spring contact is installed on runner, and when its position guaranteed that runner rotates under the driving of air-flow, revolution was crossed a coil spring contact and just knocked sound vacuum transmitter once.
Described sound vacuum transmitter comprises two hollow cylindrical things that are nested together of different sizes, inner hollow column, and seal with thin skin at two ends, inner for the airborne sound layer, when an end receives the other end that can pass to vibration transmitter when knocking rapidly; In the middle of the two-layer cylinder is the vacuum pugging; The outer space stem adopts antidetonation anti-fight material to process.Two hollow cylindrical things of described sound vacuum transmitter adopt insulating material to process, and to the youthful and the elderly 50mm, master control set and gas pipeline are fully isolated.
Sound vacuum transmitter will reach the signal processing circuit of master control set through the flow information that runner conduction is come, and change into the faint level signal of standard to vibration signal, send single-chip microcomputer after the amplification to, and single-chip microcomputer has just obtained variable through translation operation.
Power carrier communication module in the described master control set comprises transtation mission circuit and receiving circuit; Receiving circuit comprises isolating transformer TZ; Useful signal transmits on line of electric force with the 220V/50HZ ac signal simultaneously; After useful signal was isolated through TZ and ac signal, the frequency selection circuit through resistance R 6, capacitor C 15, C16, inductance L 2 are formed outputed to single-chip microcomputer through capacitor C 17 again; Transtation mission circuit comprises the amplifying circuit that triode Q1-Q4 forms; The data message that single-chip microcomputer will send is modulated into the pulse signal of certain frequency; Being transferred to amplifying circuit through capacitor C 12, C13, resistance R 4, R5 amplifies; The frequency selection circuit of forming through inductance L 1, capacitor C 14 again is transported on the line of electric force, is sent out by line of electric force.
The power supply of this gas meter, flow meter after AC rectification filtering, converts the voltage that is fit to each chip circuit work through voltage stabilizing IC by power taking on the custom power line, when having avoided using powered battery, needs often to change the trouble of battery.
The master control set of this gas meter, flow meter also comprises the clock circuit that offers single-chip microcomputer frequency of operation and time parameter.
Compared with prior art; The present invention adopts sound vacuum transmitter that gas pipeline is isolated with the main control part of the table that has forceful electric power and places; Solved safety problem; So just can utilize power line carrier technology to realize the remote meter reading of gas burning system, low being prone to of cost realizes that management has brought convenience to gas company.
Description of drawings
Fig. 1 is that functional module of the present invention connects synoptic diagram; Fig. 2 is a sound vacuum transmitter synoptic diagram; Fig. 3 acoustic signals treatment circuit synoptic diagram; Fig. 4 electric line carrier communication circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Like Fig. 1, a kind of gas meter, flow meter of supporting remote meter-reading function comprises combustion gas signal pickup assembly, sound vacuum transmitter, master control set.Master control set is connected with signal pickup assembly through sound vacuum transmitter.Master control set comprises single-chip microcomputer and the storer, button, display device, signal processing circuit, the power carrier communication circuit that are electrically connected with single-chip microcomputer, also comprises power circuit.
Like Fig. 2; Described sound vacuum transmitter comprises two hollow cylindrical things that are nested together of different sizes; Seal with thin skin (3) at inner hollow column (1) two ends, inner for airborne sound layer (4), when an end receives the other end that can pass to vibration transmitter when knocking rapidly; In the middle of the two-layer cylinder is vacuum pugging (5); Outer space stem (2) adopts antidetonation anti-fight material to process.
Like Fig. 3, the signal processing circuit in the described master control set comprises electret microphone BM and integrated chip U1 and peripheral circuit thereof, and U1 can adopt acoustic control integrated chip SL 517.Voice signal is through electret microphone BM reception and change ultra-weak electronic signal into, reaches integrated chip 1 pin through coupling capacitance C2, after chip internal amplifies, by the output of 13 pin, is bonded to chip 9 pin and 10 pin by capacitor C 3 and C4 lotus root again, is exported by 8 pin at last.
Like Fig. 4; Electric line carrier communication circuit comprises isolating transformer TZ; Useful signal transmits on line of electric force with the 220V/50HZ ac signal simultaneously, after useful signal is isolated through TZ and ac signal, through the frequency selection circuit of resistance R 6, capacitor C 15, C16, inductance L 2 compositions; Output to single-chip microcomputer through capacitor C 17 again, after the single-chip microcomputer inner decoding, obtain corresponding electric quantity data.Here diode D5, D6 play the limited amplitude protection effect.
Said gas meter, flow meter is gathered gas consumption signal in the user pipe by the combustion gas signal pickup assembly; This signal is sent to the signal processing circuit of governor circuit through sound vacuum transmitter; After the conversion processing and amplifying, send single-chip microcomputer to, calculate the concrete power consumption data of user by single-chip microcomputer.These data are shown to the user by the MCU driving display device, also store into simultaneously in the storer, and civil gas management department can be through power carrier communication circuit and this table communication, these data of remote copying.The user also can thumb stored historical through button and use gas information.
When needing to send data, single-chip microcomputer is modulated into the pulse signal of certain frequency with it, and the amplifying circuit of being made up of triode Q1-Q4 amplifies, and the frequency selection circuit of forming through inductance L 1, capacitor C 14 again is transported on the line of electric force, is sent out by line of electric force.
Through above circuit, the present invention can be through the equipment such as concentrator in the existing electric system, and with the shared communication line of metering ammeter, the usage data that the transmission that makes progress collects realizes remote meter-reading function.

Claims (5)

1. a gas meter, flow meter of supporting remote meter-reading function is made up of combustion gas signal pickup assembly, sound vacuum transmitter, master control set, and it is characterized in that: described combustion gas signal pickup assembly is installed in the shell, is serially connected on the gas pipeline; Master control set is installed in another shell, is connected with signal pickup assembly through sound vacuum transmitter; Master control set comprises single-chip microcomputer and the storer, button, display device, signal processing circuit, the power carrier communication circuit that are electrically connected with single-chip microcomputer;
Described combustion gas signal pickup assembly comprises a runner, and a spring contact is installed on runner, and when its position guaranteed that runner rotates under the driving of air-flow, revolution was crossed a coil spring contact and just knocked sound vacuum transmitter once;
Described sound vacuum transmitter comprises two hollow cylindrical things that are nested together of different sizes, and seal with thin skin (3) at inner hollow column (1) two ends, and is inner for airborne sound layer (4), when an end receives the other end that can pass to vibration transmitter when knocking rapidly; In the middle of the two-layer cylinder is vacuum pugging (5); Outer space stem (2) adopts antidetonation anti-fight material to process.
2. the gas meter, flow meter of support remote meter-reading function according to claim 1 is characterized in that: two hollow cylindrical things of described sound vacuum transmitter adopt insulating material to process, and to the youthful and the elderly 50mm, master control set and gas pipeline are fully isolated.
3. the gas meter, flow meter of support remote meter-reading function according to claim 2 is characterized in that: the signal processing circuit in the described master control set comprises electret microphone BM and integrated chip U1 and peripheral circuit thereof; Voice signal is through electret microphone BM reception and change ultra-weak electronic signal into, reaches integrated chip 1 pin through coupling capacitance C2, after chip internal amplifies, by the output of 13 pin, is bonded to chip 9 pin and 10 pin by capacitor C 3 and C4 lotus root again, is exported by 8 pin at last.
4. the gas meter, flow meter of support remote meter-reading function according to claim 3; It is characterized in that: the power carrier communication circuit in the described master control set comprises transtation mission circuit and receiving circuit; Receiving circuit comprises isolating transformer TZ, and useful signal transmits on line of electric force with the 220V/50HZ ac signal simultaneously, after useful signal is isolated through TZ and ac signal; Frequency selection circuit through resistance R 6, capacitor C 15, C16, inductance L 2 are formed outputs to single-chip microcomputer through capacitor C 17 again; Transtation mission circuit comprises the amplifying circuit that triode Q1-Q4 forms; The data message that single-chip microcomputer will send is modulated into the pulse signal of certain frequency; Being transferred to amplifying circuit through capacitor C 12, C13, resistance R 4, R5 amplifies; The frequency selection circuit of forming through inductance L 1, capacitor C 14 again is transported on the line of electric force, is sent out by line of electric force.
5. the gas meter, flow meter of support remote meter-reading function according to claim 4 is characterized in that: the power supply of this gas meter, flow meter after AC rectification filtering, converts the voltage that is fit to each chip circuit work directly by power taking on the custom power line to through voltage stabilizing IC.
CN2008100288494A 2008-06-13 2008-06-13 Gas meter supporting remote meter-reading function Expired - Fee Related CN101290239B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100288494A CN101290239B (en) 2008-06-13 2008-06-13 Gas meter supporting remote meter-reading function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100288494A CN101290239B (en) 2008-06-13 2008-06-13 Gas meter supporting remote meter-reading function

Publications (2)

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CN101290239A CN101290239A (en) 2008-10-22
CN101290239B true CN101290239B (en) 2012-01-18

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101556176B (en) * 2009-05-26 2012-08-22 无锡虹业腾文电子科技有限公司 Remote fuel gas meter reading system
CN102184631B (en) * 2011-03-08 2013-01-02 西安交通大学 Household energy consumption data acquisition and real-time display system and using method thereof
CN103118075B (en) * 2013-01-11 2015-06-24 江庆 Collection server achieving multi-way transmission of collected data
CN104677443A (en) * 2013-11-27 2015-06-03 哈尔滨市三和佳美科技发展有限公司 Power carrier communication based photoelectric direct-reading water meter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
R. Kacprzyk.Double-layer electret transducer.《Journal of Electrostatics》.1997,第39卷 *

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Granted publication date: 20120118

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