CN104834252A - Supersonic gas meter and supersonic gas meter control system - Google Patents
Supersonic gas meter and supersonic gas meter control system Download PDFInfo
- Publication number
- CN104834252A CN104834252A CN201510185820.7A CN201510185820A CN104834252A CN 104834252 A CN104834252 A CN 104834252A CN 201510185820 A CN201510185820 A CN 201510185820A CN 104834252 A CN104834252 A CN 104834252A
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- circuit
- gas meter
- ultrasonic wave
- ultrasonic
- wave gas
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2656—Instrumentation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the field of combustion gas control and particularly relates to a supersonic gas meter and a supersonic gas meter control system. The gas meter control system comprises a MCU, a detection circuit, a value control circuit, a display circuit and a debugging circuit. The detection circuit, the value control circuit, the display circuit and the debugging circuit are connected with the MCU. The detection circuit comprises a supersonic sampling circuit and a temperature sampling circuit. The supersonic sampling circuit is connected with a supersonic transducer and sends collected supersonic information to the MCU. According to the invention, the measurement precision of the supersonic gas meter is further improved by improving the supersonic gas meter control system as addition of the temperature sampling circuit and arrangement of the valve control circuit while increase in the volume of the supersonic gas meter is prevented.
Description
Technical field
The present invention relates to combustion gas control field, particularly a kind of ultrasonic wave gas meter and control system.
Background technology
traditional domestic gas meter mostly is diaphragm gas meter, and its measuring accuracy can be subject to the various factors such as temperature and gaseous-pressure, causes measuring accuracy low.Thereupon, ultrasonic wave gas meter arises at the historic moment, and compared with conventional gas table, ultrasonic wave gas meter need not contact measured medium in measuring process, has the series of advantages such as measuring accuracy is high, good stability, simple structure, mechanicalness moving part is few, volume is little; But along with the requirement of gas metering field to gas metering precision is more and more higher, also there is the demand needing to improve measuring accuracy in ultrasonic wave gas meter, and existing ultrasonic wave gas meter improves the broadening gas flow of the many employings of measuring accuracy or increase the means of the spacing distance between two ultrasonic transducers; Although ultrasonic wave gas meter accuracy of detection can be improved to a certain extent with upper type, but take said method also can increase overall volume and the weight of ultrasonic wave gas meter simultaneously, thus need when gas meter, flow meter is installed to take larger space, make installation very inconvenient.In addition, because hyperacoustic transmission speed is very fast, the measuring accuracy therefore brought by the distance between broadening gas flow or two ultrasonic transducers improves limited.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of ultrasonic wave gas meter and control system, improves the measuring accuracy of ultrasonic wave gas meter with the control mode by improving ultrasonic wave gas meter, reduces overall volume and the weight of ultrasonic wave gas meter.
To achieve these goals, the technical solution used in the present invention is: a kind of ultrasonic wave gas meter control system; Comprise MCU, testing circuit, valve controling circuit, display circuit, debug circuit; Described testing circuit, valve controling circuit, display circuit, debug circuit are all connected with described MCU; Described testing circuit comprises ultrasound wave sample circuit and temperature sampling circuit, and described ultrasound wave sample circuit is connected with ultrasonic transducer, and the ultrasound information collected is sent to MCU;
Described valve controling circuit is for controlling the valve in ultrasonic wave gas meter;
Described display circuit is used for the ruuning situation of ultrasonic wave gas meter to show, and comprises valve and opens, manages, and valve is abnormal, battery altering, integrated flux, instantaneous delivery, time isoparametric display;
Described debug circuit is used for user and debugs ultrasonic wave gas meter.
Further, described debug circuit is infrared debug circuit.
Further, described ultrasound wave sample circuit has two input interfaces, two input interfaces are connected with two ultrasonic transducers respectively, and the distance of described ultrasound wave sample circuit to two ultrasonic transducer is identical, the Signal transmissions error that two ultrasonic transducers cause because of signal wire length difference can drop to minimum by this set.
Described ultrasound wave sample circuit detects ultrasonic signal between two ultrasonic transducers and calculates the mistiming of its signal transmission each other.
Further, described valve controling circuit comprises battery or large bulk capacitance, when MCU detects the supply voltage of gas meter, flow meter lower than preset value, the electricity that described valve controling circuit utilizes self-contained battery or large bulk capacitance to provide is by valve closing, this effectively ensure that to go wrong at external power supply, gas meter, flow meter cuts off gas supply when cannot normally count, thus the accuracy of combustion gas counting, avoid when gas meter, flow meter cannot count, the miscount problem that combustion gas continues supply and causes.
The present invention also provides a kind of ultrasonic wave gas meter, and described ultrasonic wave gas meter comprises ultrasonic wave gas meter control system as above.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: avoid the volume by increasing ultrasonic wave gas meter, and by improving the control system of ultrasonic wave gas meter, as increased temperature sampling circuit, the measuring accuracy that valve controling circuit improves ultrasonic wave gas meter is further set.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment 1:the goal of the invention of the present embodiment is the volume avoided by increasing ultrasonic wave gas meter, and is improved the measuring accuracy of ultrasonic wave gas meter by the control system improving ultrasonic wave gas meter, and provides a kind of ultrasonic wave gas meter control system.
As shown in Figure 1, to achieve these goals, the technical scheme that the present embodiment adopts is: a kind of ultrasonic wave gas meter control system; Comprise MCU1(actual employing STM8L152R8 chip), testing circuit 2, valve controling circuit 3, display circuit 4, debug circuit 5; Described testing circuit 2, valve controling circuit 3, display circuit 4, debug circuit 5 are all connected with described MCU1; Described testing circuit 2 comprises ultrasound wave sample circuit 21 and temperature sampling circuit 22, and described ultrasound wave sample circuit 21 is connected with ultrasonic transducer, and the ultrasound information collected is sent to MCU1;
Described valve controling circuit 3 closes for the unlatching controlling the valve in ultrasonic wave gas meter;
Described display circuit 4, for the ruuning situation of ultrasonic wave gas meter being shown, comprises valve and opens, manages, and valve is abnormal, battery altering, integrated flux, instantaneous delivery, time isoparametric display;
Described debug circuit 5 is debugged ultrasonic wave gas meter for user.
Further, described debug circuit 5 is infrared debug circuit, thus supports that user adopts the debugging end with infrared function to debug gas meter, flow meter.
Further, described ultrasound wave sample circuit 21 has two input interfaces, two input interfaces are connected with two ultrasonic transducers respectively, and the distance of described ultrasound wave sample circuit to two ultrasonic transducer is identical, the Signal transmissions error that two ultrasonic transducers cause because of signal wire length difference can drop to minimum by this set.
Described ultrasound wave sample circuit 21 detects ultrasonic signal between two ultrasonic transducers and calculates the mistiming of its signal transmission each other.
Further, described valve controling circuit 3 includes battery or large bulk capacitance, when MCU detect the supply voltage of gas meter, flow meter lower than preset value time (as gas meter, flow meter for adopt external power supply time, external power supply power-off; Or during gas meter, flow meter employing battery, battery electric quantity has consumed), described valve controling circuit 3 utilizes the electricity of its cells or large bulk capacitance by valve closing, this effectively ensure that to go wrong in power supply, gas meter, flow meter cuts off gas supply when cannot normally count, thus the accuracy of combustion gas counting, gas meter, flow meter avoid when cannot count, the miscount problem that combustion gas continues supply and causes, with should MCU1 detect that the power supply of gas meter, flow meter is normal time, controllable valve gate control circuit is by valve open again, and gas meter, flow meter recovers normal work.
The present invention also provides a kind of ultrasonic wave gas meter, and described ultrasonic wave gas meter comprises ultrasonic wave gas meter control system as above.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a ultrasonic wave gas meter control system, is characterized in that, comprises MCU, testing circuit, valve controling circuit, display circuit, debug circuit; Described testing circuit, valve controling circuit, display circuit, debug circuit are all connected with described MCU; Described testing circuit comprises ultrasound wave sample circuit and temperature sampling circuit, and described ultrasound wave sample circuit is connected with ultrasonic transducer, and the ultrasound information collected is sent to MCU;
Described valve controling circuit is for controlling the valve in ultrasonic wave gas meter;
Described display circuit is used for the ruuning situation of ultrasonic wave gas meter to show;
Described debug circuit is used for user and debugs ultrasonic wave gas meter.
2. ultrasonic wave gas meter control system as claimed in claim 1, it is characterized in that, described debug circuit is infrared debug circuit.
3. ultrasonic wave gas meter control system as claimed in claim 1, it is characterized in that, described ultrasound wave sample circuit has two input interfaces, and two input interfaces are connected with two ultrasonic transducers respectively, and the distance of described ultrasound wave sample circuit to two ultrasonic transducer is identical;
Described ultrasound wave sample circuit detects ultrasonic signal between two ultrasonic transducers and calculates the mistiming of its signal transmission each other.
4. ultrasonic wave gas meter control circuit as claimed in claim 1, it is characterized in that, described valve controling circuit comprises battery or large bulk capacitance, when MCU detects the supply voltage of gas meter, flow meter lower than preset value, described valve controling circuit utilizes battery electric quantity or described large bulk capacitance electricity by valve closing.
5. ultrasonic wave gas meter control circuit as claimed in claim 1, it is characterized in that, also comprise self-checking circuit, described self-checking circuit is connected with MCU, and it is for detecting the temperature of operating ultrasonic wave gas meter, cell voltage, storage whether exception.
6. a ultrasonic wave gas meter, is characterized in that, comprises the ultrasonic wave gas meter control system as described in any one of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185820.7A CN104834252A (en) | 2015-04-20 | 2015-04-20 | Supersonic gas meter and supersonic gas meter control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185820.7A CN104834252A (en) | 2015-04-20 | 2015-04-20 | Supersonic gas meter and supersonic gas meter control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104834252A true CN104834252A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510185820.7A Pending CN104834252A (en) | 2015-04-20 | 2015-04-20 | Supersonic gas meter and supersonic gas meter control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104834252A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681219A (en) * | 2017-01-13 | 2017-05-17 | 成都中科慧源科技有限公司 | Real time monitoring and timely responsive fault handling system and method for gas meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201548273U (en) * | 2009-11-12 | 2010-08-11 | 浙江威星智能仪表股份有限公司 | Ultrasonic gas meter with temperature compensation |
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
| EP2423648A1 (en) * | 2010-08-31 | 2012-02-29 | Kamstrup A/S | Ultrasonic flow meter with insert fixed by locking finger |
| CN203405242U (en) * | 2013-09-05 | 2014-01-22 | 重庆前卫科技集团有限公司 | Detection circuit used for ultrasonic gas meter and ultrasonic gas meter thereof |
| CN103900651A (en) * | 2014-04-09 | 2014-07-02 | 浙江威星智能仪表股份有限公司 | Mixed signal processing circuit of ultrasonic gas meter |
-
2015
- 2015-04-20 CN CN201510185820.7A patent/CN104834252A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201548273U (en) * | 2009-11-12 | 2010-08-11 | 浙江威星智能仪表股份有限公司 | Ultrasonic gas meter with temperature compensation |
| EP2423648A1 (en) * | 2010-08-31 | 2012-02-29 | Kamstrup A/S | Ultrasonic flow meter with insert fixed by locking finger |
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
| CN203405242U (en) * | 2013-09-05 | 2014-01-22 | 重庆前卫科技集团有限公司 | Detection circuit used for ultrasonic gas meter and ultrasonic gas meter thereof |
| CN103900651A (en) * | 2014-04-09 | 2014-07-02 | 浙江威星智能仪表股份有限公司 | Mixed signal processing circuit of ultrasonic gas meter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681219A (en) * | 2017-01-13 | 2017-05-17 | 成都中科慧源科技有限公司 | Real time monitoring and timely responsive fault handling system and method for gas meter |
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Application publication date: 20150812 |
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