CN103759862A - Distributed electromagnet cooling and heating capacity metering system and method - Google Patents
Distributed electromagnet cooling and heating capacity metering system and method Download PDFInfo
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Abstract
The invention discloses a distributed electromagnetic cooling and heating capacity metering system. The distributed electromagnetic cooling and heating capacity metering system comprises an excitation driving module, a central processing module, a display module, a communication module, a power module, sensing units and a signal conditioning circuit. The excitation driving module is used for providing supplying power for excitation coils of multiple routes of connected electromagnetic flow sensors according to excitation signals provided by a central processing unit and. The central processing module is used for realizing generation of multiple routes of excitation signals, collection of multiple routes of flow signals, collection of multiple routes of temperature signals and concentrated processing of multiple routes of data. The display module is used for displaying information according to channels in a classifying mode, wherein the information is output by the central processing module. The communication module is used for conducting communication so as to realize data receiving and transmitting. The power module is used for providing working power sources with different voltage levels for all the modules. The sensing units comprise electromagnetic flow sensors, water inlet temperature sensors and water outlet temperature sensors, are installed in houses respectively and are used for collecting flow information and temperature information of users. The signal conditioning circuit is used for converting the flow information and the temperature information collected by all the sensing units and transmitting the flow information and the temperature information to the central processing module. The invention further discloses a cooling and heating capacity metering method.
Description
Technical field
The present invention relates to the cold and hot consumption metering system of a kind of collecting and distributing type electromagnetism and adopt above-mentioned metering system to carry out the method for cold heat metering.
Background technology
In the fee mode of northern China and other area Indoor environment in winter heating, just from traditional, press floor area of building charging, excessive to the mode of carrying out meterage by the heat energy of the actual use of user.At present for the calorimeter of heat metering, mainly contain three kinds of mechanical type, ultrasonic type and electromagnetic types.Wherein, electromagnetic type calorimeter measuring accuracy is high, and long service life is found broad application.
Current electromagnetic type calorimeter is on the market all that Every household has an ammeter, and manufacturing cost is high, is unfavorable for generally promoting; Every table to family is all wanted external power supply, while using heat metering for large area building, gives and installs, manages and bring very large inconvenience.
Summary of the invention
In order to solve the technical matters existing in background technology, the present invention proposes the cold and hot consumption metering system of a kind of collecting and distributing type electromagnetism, realized multi-user's heat Calculation, can centrally connected power supply, household metering, centralized automatic meter-reading.
The cold and hot consumption metering system of a kind of collecting and distributing type electromagnetism that the present invention proposes, comprising:
Comprise processing execution unit and sensor assembly, processing execution unit comprises power module, excitation driver module, central processing module, display module and communication module, and sensor assembly is comprised of some sensing units and signal conditioning circuit, wherein:
Excitation driver module, for the excitation signal providing according to central processing unit, arranges different exciting currents and channel information, distributes respective channel exciting current, the field coil of the multi-channel electromagnetic flow sensor to access power supply simultaneously;
Central processing module, for realizing focusing on of the generation of multichannel excitation signal, multichannel flow signal collection, multi way temperature signal collection and multichannel data;
Display module, for the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature are sent to liquid crystal display, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information;
Communication module, realizes the reception of data and spreads out of for communicating;
Power module, is used to excitation driver module, central processing module, display module, communication module, sensor assembly that the working power of different electric pressures is provided;
Sensing unit, comprises electromagnetic flow transducer, water delivering orifice temperature sensor, water inlet temperature sensor, and install at point family, for gathering user's flow information and temperature information;
Signal conditioning circuit, for changing flow information and the temperature information of each sensing unit collection and being transmitted to central processing module.
Preferably, central processing module comprises FPGA FPGA (Field Programmable Gate Array) control chip, DSP digital signal processor and ARM microprocessor, and FPGA is that excitation driver module produces the different excitation signals with certain frequency, and gathers the flow signal of electromagnetic flow transducer; By giving DSP after signal conversion, carry out data processing, DSP receives the data on flows of FPGA, and carry out flow rate calculation, the signal of collecting temperature sensor simultaneously, carry out heat Conversion Calculation with flow signal, and in real time the result of calculating is sent by ARM and processed, the signal that ARM sends DSP here is added up, stores and shown by display module by user, and by communication module by data outgoing, realize data communication.
Preferably, the flow signal that electromagnetic flow transducer obtains is converted into electromotive force and carries out filtering, amplification through signal conditioning circuit, sends into FPGA and carries out sampling processing, and be sent to DSP and carry out the calculating of flow, heat after V/F converter converts frequency signal to; The temperature signal that temperature sensor produces, and carry out real-time sampling, processing by DSP.
Preferably, processing execution unit also comprises digital signal input/output module, digital signal input/output module has the input/output function of switching value, frequency quantity signal, pulse signal, for the frequency signal output of the control signal output of the state acquisition of operation valve, operation valve, heat Threshold Crossing Alert, excitation alarm output, blank pipe alarm data, heat.
Preferably, the classification that display module possesses multiple user data shows, can show real-time flow data, out temperature value and the calorie value of selected user; And possess query function and the real-time curve Presentation Function of historical data.
Preferably, excitation driver module possesses exciting current detection, current closed-loop control function, can realize the stable output of exciting current, and possess field circuit fault detection capability.
In the present invention, each sensing unit divides family that the flow information, the temperature information that gather each family are installed, in processing execution unit, excitation driver module is concentrated provides exciting current for the electromagnetic flow transducer in sensing unit, power module carries out centrally connected power supply, central processing unit carries out intensive data processing, and display module is concentrated and divided family to show, and can carry out by communication module the transmission of data, realize remote data and receive, thereby complete centralized automatic meter-reading; Realized multi-user's heat Calculation, can centrally connected power supply, household metering, centralized automatic meter-reading, its concrete drive manner is as follows: central processing module provides excitation signal to excitation driver module; Excitation driver module arranges different exciting currents and channel information according to this excitation signal, distributes the field coil power supply of the electromagnetic flow transducer that respective channel exciting current is different sensing units; The electromagnetic flow transducer of each sensing unit, water inlet temperature sensor, water delivering orifice temperature sensor gather respectively flow information, water inlet temperature information, the water delivering orifice temperature information of respective user, and above-mentioned flow information, water inlet temperature information, water delivering orifice temperature information are sent to central processing module after signal conditioning circuit conversion; Central processing module is collected flow information, water inlet temperature information, the water delivering orifice temperature information that each sensing unit sends, calculate corresponding caloric information, and by sending to display module, by communication module, data are passed to far-end server simultaneously, carry out data reading system; Display module is sent to liquid crystal display by the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information.
The invention also discloses a kind of method that adopts the cold and hot consumption metering system of above-mentioned collecting and distributing type electromagnetism to carry out cold heat metering, central processing module provides excitation signal to excitation driver module; Excitation driver module arranges different exciting currents and channel information according to this excitation signal, distributes the field coil power supply of the electromagnetic flow transducer that respective channel exciting current is different sensing units; The electromagnetic flow transducer of each sensing unit, water inlet temperature sensor, water delivering orifice temperature sensor gather respectively flow information, water inlet temperature information, the water delivering orifice temperature information of respective user, and above-mentioned flow information, water inlet temperature information, water delivering orifice temperature information are sent to central processing module after signal conditioning circuit conversion; Central processing module is collected flow information, water inlet temperature information, the water delivering orifice temperature information that each sensing unit sends, calculate corresponding caloric information, and by sending to display module, by communication module, data are passed to far-end server simultaneously, carry out data reading system; Display module is sent to liquid crystal display by the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information.
The technique effect of the technique effect of the cold heat metering method of above-mentioned collecting and distributing type electromagnetism and the cold and hot consumption metering system of collecting and distributing type electromagnetism is basic identical, repeats no more herein.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the cold and hot consumption metering system of a kind of collecting and distributing type electromagnetism that proposes of the present invention
Embodiment
As shown in Figure 1, Fig. 1 is the theory diagram of the cold and hot consumption metering system of a kind of collecting and distributing type electromagnetism that proposes of the present invention.
With reference to Fig. 1, the cold and hot consumption metering system of a kind of collecting and distributing type electromagnetism that the present invention proposes, comprising:
Comprise processing execution unit and sensor assembly, processing execution unit comprises power module, excitation driver module, central processing module, display module and communication module, and sensor assembly is comprised of some sensing units and signal conditioning circuit, wherein:
Excitation driver module, for the excitation signal providing according to central processing unit, arranges different exciting currents and channel information, distributes respective channel exciting current, the field coil of the multi-channel electromagnetic flow sensor to access power supply simultaneously;
Central processing module, for realizing focusing on of the generation of multichannel excitation signal, multichannel flow signal collection, multi way temperature signal collection and multichannel data;
Display module, for the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature are sent to liquid crystal display, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information;
Communication module, realizes the reception of data and spreads out of for communicating;
Power module, is used to excitation driver module, central processing module, display module, communication module, sensor assembly that the working power of different electric pressures is provided;
Sensing unit, comprises electromagnetic flow transducer, water delivering orifice temperature sensor, water inlet temperature sensor, and install at point family, for gathering user's flow information and temperature information;
Signal conditioning circuit, for changing flow information and the temperature information of each sensing unit collection and being transmitted to central processing module.
In technique scheme, each sensing unit divides family that the flow information, the temperature information that gather each family are installed, in processing execution unit, excitation driver module is concentrated provides exciting current for the electromagnetic flow transducer in sensing unit, power module carries out centrally connected power supply, central processing unit carries out intensive data processing, and display module is concentrated and divided family to show, and can carry out by communication module the transmission of data, realize remote data and receive, thereby complete centralized automatic meter-reading; Realized multi-user's heat Calculation, can centrally connected power supply, household metering, centralized automatic meter-reading, its concrete drive manner is as follows: central processing module provides excitation signal to excitation driver module; Excitation driver module arranges different exciting currents and channel information according to this excitation signal, distributes the field coil power supply of the electromagnetic flow transducer that respective channel exciting current is different sensing units; The electromagnetic flow transducer of each sensing unit, water inlet temperature sensor, water delivering orifice temperature sensor gather respectively flow information, water inlet temperature information, the water delivering orifice temperature information of respective user, and above-mentioned flow information, water inlet temperature information, water delivering orifice temperature information are sent to central processing module after signal conditioning circuit conversion; Central processing module is collected flow information, water inlet temperature information, the water delivering orifice temperature information that each sensing unit sends, calculate corresponding caloric information, and by sending to display module, by communication module, data are passed to far-end server simultaneously, carry out data reading system; Display module is sent to liquid crystal display by the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information.
In specific design process, central processing module comprises FPGA FPGA (Field Programmable Gate Array) control chip, DSP digital signal processor and ARM microprocessor, FPGA is that excitation driver module produces the different excitation signals with certain frequency, and gathers the flow signal of electromagnetic flow transducer; By giving DSP after signal conversion, carry out data processing, DSP receives the data on flows of FPGA, and carry out flow rate calculation, the signal of collecting temperature sensor simultaneously, carry out heat Conversion Calculation with flow signal, and in real time the result of calculating is sent by ARM and processed, the signal that ARM sends DSP here is added up, stores and shown by display module by user, and by communication module by data outgoing, realize data communication.
Central processing module is integrated with FPGA FPGA (Field Programmable Gate Array) control chip, DSP digital signal processor and ARM microprocessor, by sharing out the work and help one another, improves processing power.
In specific design process, the flow signal that electromagnetic flow transducer obtains is converted into electromotive force and carries out filtering, amplification through signal conditioning circuit, after V/F converter converts frequency signal to, send into FPGA and carry out sampling processing, and be sent to DSP and carry out the calculating of flow, heat; The temperature signal that temperature sensor produces, and carry out real-time sampling, processing by DSP.
Signal conditioning circuit carries out electromotive force converted flow signal filtering, amplifies and process, thereby promotes acquisition precision.
In specific design process, processing execution unit also comprises digital signal input/output module, digital signal input/output module has the input/output function of switching value, frequency quantity signal, pulse signal, for the frequency signal output of the control signal output of the state acquisition of operation valve, operation valve, heat Threshold Crossing Alert, excitation alarm output, blank pipe alarm data, heat.
By digital signal input/output module is set, can effectively carry out the control and management of digital signal.
In specific design process, the classification that display module possesses multiple user data shows, can show real-time flow data, out temperature value and the calorie value of selected user; And possess query function and the real-time curve Presentation Function of historical data.
Display module adopts above-mentioned Presentation Function setting, can improve the rich of displaying contents.
In specific design process, excitation driver module possesses exciting current detection, current closed-loop control function, can realize the stable output of exciting current, and possess field circuit fault detection capability.
Adopt above-mentioned technology, can promote the stability of exciting current output.
Adopt the cold and hot consumption metering system of above-mentioned collecting and distributing type electromagnetism to carry out a method for cold heat metering, central processing module provides excitation signal to excitation driver module; Excitation driver module arranges different exciting currents and channel information according to this excitation signal, distributes the field coil power supply of the electromagnetic flow transducer that respective channel exciting current is different sensing units; The electromagnetic flow transducer of each sensing unit, water inlet temperature sensor, water delivering orifice temperature sensor gather respectively flow information, water inlet temperature information, the water delivering orifice temperature information of respective user, and above-mentioned flow information, water inlet temperature information, water delivering orifice temperature information are sent to central processing module after signal conditioning circuit conversion; Central processing module is collected flow information, water inlet temperature information, the water delivering orifice temperature information that each sensing unit sends, calculate corresponding caloric information, and by sending to display module, by communication module, data are passed to far-end server simultaneously, carry out data reading system; Display module is sent to liquid crystal display by the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information.
The technique effect of the technique effect of the cold heat metering method of above-mentioned collecting and distributing type electromagnetism and the cold and hot consumption metering system of collecting and distributing type electromagnetism is basic identical, repeats no more herein.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. the cold and hot consumption metering system of collecting and distributing type electromagnetism, it is characterized in that, comprise processing execution unit and sensor assembly, processing execution unit comprises power module, excitation driver module, central processing module, display module and communication module, sensor assembly is comprised of some sensing units and signal conditioning circuit, wherein:
Excitation driver module, for the excitation signal providing according to central processing unit, arranges different exciting currents and channel information, distributes respective channel exciting current, the field coil of the multi-channel electromagnetic flow sensor to access power supply simultaneously;
Central processing module, for realizing focusing on of the generation of multichannel excitation signal, multichannel flow signal collection, multi way temperature signal collection and multichannel data;
Display module, for the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature are sent to liquid crystal display, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information;
Communication module, realizes the reception of data and spreads out of for communicating;
Power module, is used to excitation driver module, central processing module, display module, communication module, sensor assembly that the working power of different electric pressures is provided;
Sensing unit, comprises electromagnetic flow transducer, water delivering orifice temperature sensor, water inlet temperature sensor, and install at point family, for gathering user's flow information and temperature information;
Signal conditioning circuit, for changing flow information and the temperature information of each sensing unit collection and being transmitted to central processing module.
2. the cold and hot consumption metering system of collecting and distributing type electromagnetism according to claim 1, it is characterized in that, central processing module comprises FPGA FPGA (Field Programmable Gate Array) control chip, DSP digital signal processor and ARM microprocessor, FPGA is that excitation driver module produces the different excitation signals with certain frequency, and gathers the flow signal of electromagnetic flow transducer; By giving DSP after signal conversion, carry out data processing, DSP receives the data on flows of FPGA, and carry out flow rate calculation, the signal of collecting temperature sensor simultaneously, carry out heat Conversion Calculation with flow signal, and in real time the result of calculating is sent by ARM and processed, the signal that ARM sends DSP here is added up, stores and shown by display module by user, and by communication module by data outgoing, realize data communication.
3. the cold and hot consumption metering system of collecting and distributing type electromagnetism according to claim 1, it is characterized in that, the flow signal that electromagnetic flow transducer obtains is converted into electromotive force and carries out filtering, amplification through signal conditioning circuit, after V/F converter converts frequency signal to, send into FPGA and carry out sampling processing, and be sent to DSP and carry out the calculating of flow, heat; The temperature signal that temperature sensor produces, and carry out real-time sampling, processing by DSP.
4. the cold and hot consumption metering system of collecting and distributing type electromagnetism according to claim 1, it is characterized in that, processing execution unit also comprises digital signal input/output module, digital signal input/output module has the input/output function of switching value, frequency quantity signal, pulse signal, for the frequency signal output of the control signal output of the state acquisition of operation valve, operation valve, heat Threshold Crossing Alert, excitation alarm output, blank pipe alarm data, heat.
5. the cold and hot consumption metering system of collecting and distributing type electromagnetism according to claim 1, is characterized in that, the classification that display module possesses multiple user data shows, can show real-time flow data, out temperature value and the calorie value of selected user; And possess query function and the real-time curve Presentation Function of historical data.
6. the cold and hot consumption metering system of collecting and distributing type electromagnetism according to claim 1, is characterized in that, excitation driver module possesses exciting current detection, current closed-loop control function, can realize the stable output of exciting current, and possess field circuit fault detection capability.
7. a method of carrying out cold heat metering by the cold and hot consumption metering system of collecting and distributing type electromagnetism as described in claim 1-6 any one, is characterized in that, central processing module provides excitation signal to excitation driver module; Excitation driver module arranges different exciting currents and channel information according to this excitation signal, distributes the field coil power supply of the electromagnetic flow transducer that respective channel exciting current is different sensing units; The electromagnetic flow transducer of each sensing unit, water inlet temperature sensor, water delivering orifice temperature sensor gather respectively flow information, water inlet temperature information, the water delivering orifice temperature information of respective user, and above-mentioned flow information, water inlet temperature information, water delivering orifice temperature information are sent to central processing module after signal conditioning circuit conversion; Central processing module is collected flow information, water inlet temperature information, the water delivering orifice temperature information that each sensing unit sends, calculate corresponding caloric information, and by sending to display module, by communication module, data are passed to far-end server simultaneously, carry out data reading system; Display module is sent to liquid crystal display by the real-time and cummulative metering data of the flow of central processing module output, heat, water inlet temperature, water delivering orifice temperature, and press classification in channel set and show, and carry out the demonstration of the various failure messages such as heat off-limit alarm and system running state information.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115630A (en) * | 2015-09-25 | 2015-12-02 | 广东艾科技术股份有限公司 | Integrated electromagnetic calorimeter |
| CN107782468A (en) * | 2016-08-30 | 2018-03-09 | 济南瀚舟电子技术有限公司 | A kind of electromagnetic heat meters |
| CN112019179A (en) * | 2020-09-07 | 2020-12-01 | 南京宁普防雷技术有限公司 | Network signal electromagnetic pulse protection mechanism |
| WO2021087704A1 (en) * | 2019-11-04 | 2021-05-14 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter, control method, spraying system, and agricultural unmanned aerial vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4393919A (en) * | 1980-09-02 | 1983-07-19 | Anderson Cary R | Thermal energy meter |
| CN101556194A (en) * | 2009-05-20 | 2009-10-14 | 哈尔滨工业大学 | Flow temperature heat measuring method based on room temperature and flow temperature heat measuring system |
| CN201637516U (en) * | 2010-03-30 | 2010-11-17 | 杭州源牌环境科技有限公司 | Integral electromagnetic heat meter |
| CN202710217U (en) * | 2012-07-25 | 2013-01-30 | 杭州富阳仪表总厂 | High-precision calorimeter |
| CN203203727U (en) * | 2013-03-05 | 2013-09-18 | 郦敏 | An electromagnetic heat meter system |
-
2014
- 2014-01-07 CN CN201410007212.2A patent/CN103759862B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4393919A (en) * | 1980-09-02 | 1983-07-19 | Anderson Cary R | Thermal energy meter |
| CN101556194A (en) * | 2009-05-20 | 2009-10-14 | 哈尔滨工业大学 | Flow temperature heat measuring method based on room temperature and flow temperature heat measuring system |
| CN201637516U (en) * | 2010-03-30 | 2010-11-17 | 杭州源牌环境科技有限公司 | Integral electromagnetic heat meter |
| CN202710217U (en) * | 2012-07-25 | 2013-01-30 | 杭州富阳仪表总厂 | High-precision calorimeter |
| CN203203727U (en) * | 2013-03-05 | 2013-09-18 | 郦敏 | An electromagnetic heat meter system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115630A (en) * | 2015-09-25 | 2015-12-02 | 广东艾科技术股份有限公司 | Integrated electromagnetic calorimeter |
| CN107782468A (en) * | 2016-08-30 | 2018-03-09 | 济南瀚舟电子技术有限公司 | A kind of electromagnetic heat meters |
| WO2021087704A1 (en) * | 2019-11-04 | 2021-05-14 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter, control method, spraying system, and agricultural unmanned aerial vehicle |
| CN112019179A (en) * | 2020-09-07 | 2020-12-01 | 南京宁普防雷技术有限公司 | Network signal electromagnetic pulse protection mechanism |
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