CN102506932A - Thermodynamic type energy-efficiency data acquisition terminal - Google Patents

Thermodynamic type energy-efficiency data acquisition terminal Download PDF

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Publication number
CN102506932A
CN102506932A CN2011103153838A CN201110315383A CN102506932A CN 102506932 A CN102506932 A CN 102506932A CN 2011103153838 A CN2011103153838 A CN 2011103153838A CN 201110315383 A CN201110315383 A CN 201110315383A CN 102506932 A CN102506932 A CN 102506932A
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China
Prior art keywords
module
interface
efficiency data
micro
data collection
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Pending
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CN2011103153838A
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Chinese (zh)
Inventor
钟鸣
闫华光
王鹤
杨湘江
章欣
王红梅
李德智
李涛永
蒋利民
苗常海
何桂雄
周昭茂
刘永顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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China Electric Power Research Institute Co Ltd CEPRI
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Priority to CN2011103153838A priority Critical patent/CN102506932A/en
Publication of CN102506932A publication Critical patent/CN102506932A/en
Pending legal-status Critical Current

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    • Y02B60/50

Abstract

The invention relates to a thermodynamic type energy-efficiency data acquisition terminal which comprises a micro-processing module MCU (micro-programmed control unit), a data storage module, a power module and an RS485 interface module, wherein the micro-processing module MCU is connected with a signal sampling module and comprises a chip clock module and an AD (analog-to-digital) conversion module; the data storage module is in two-way connection with the micro-processing module; the power module supplies power to the micro-processing module MCU; and the RS485 interface module, a micro-power wireless module and a PLC (programmable logic controller) carrier communication module are respectively in two-way connection with the micro-processing module MCU. The thermodynamic type energy-efficiency data acquisition terminal has very strong anti-interference performance and high reliability; the difficulties for acquiring and transmitting thermodynamic capacity energy-efficiency data are solved, and clustering type deployment, multi-data-type acquisition and multi-interface transmission and the like are realized and the thermodynamic type energy-efficiency data acquisition terminal is completely adapted to the acquisition for energy-efficiency thermodynamic capacity on industrial sites completely. In addition, the terminal also considers the requirements of different working environments, for example, a communication mode also can be micro-power wireless and PLC single transmission modes and the like, and an expansion interface is reserved for realizing intelligent control of a master station in the future.

Description

A kind of thermal technology's type efficiency data collection station
Technical field
The present invention relates to a kind of electrotechnical instrument and meter, specifically relate to a kind of thermal technology's type efficiency data collection station.
Background technology
Developing rapidly to basic technology of energy-conservation industry proposed high requirement, and be perfect, abundant, basic data is the prerequisite that promotes the holistic health development of energy-conservation industry accurately, is the key of estimating all power-saving technology effects.Current various energy-conservation data, ability effective information confusion bring a lot of potential risks for energy-conservation industry.Therefore; Demand urgently setting up unified efficiency data acquisition center, obtain comprehensive energy-conservation service industry data, support and technical guarantee for energy-conservation industry development provides data; Energy-conservation project monitored with energy-conservation service organization assess, provide decision support for energy-conservation.
The efficiency basic data mainly depends on field real-time acquisition accurately, comprises electric weight and non electrical quantity data, and the special-purpose acquisition terminal of need employing is gathered and transmitted.Actual field exists many such as thermal technologies such as flow, temperature, humidity, pressure amount and these thermal technologies' amounts are key factors of assessment efficiency, demands developing a kind of acquisition terminal that satisfies the real-time collection thermal technology amount that industry spot and efficiency monitoring require urgently.
Application number is that 200920069055.2 patent discloses wireless data acquisition terminal, and this terminal comprises radio frequency identification module, main control module and wireless communication module.This utility model can realize the wireless collection and the wireless transmission of data, has characteristics such as real-time, that usable range wide, the transmission capacity of system is big.
Application number is that 200920236498.6 patent discloses the acquisition terminal that is used for low-voltage power user automatic meter reading system; It comprises master controller, memory module, remote update module, carrier modulation module, power module and RS485 interface module, and the purpose of this utility model is to provide a kind of acquisition terminal that is used for low-voltage power user automatic meter reading system that can do to realize the remote system renewal in the main website drilling.
Application number is that 200920279096.4 patent discloses a kind of managing electric quantity system and uses acquisition terminal; This acquisition terminal comprises pulse port and the communication unit that carries out data communication with hand-held set; Also comprise the RS485 interface, and this RS485 interface meets on this pulse port.The technical scheme that this utility model provides is convenient to dispose and expansion, improves collecting efficiency, and then improves the efficient of electric quantity acquisition transmission in the managing electric quantity system.
Application number is the special change acquisition terminal that 201020214236.2 patent discloses a kind of installed module communication module, in order to gather the device of special change user energy information.This terminal comprises display screen, mainboard, communication interface and connection terminal, and remote communication module and signal extension interface module are installed on the mainboard, and remote communication module is connected with remote terminal interface on the mainboard through substrate, and signal receiver is installed on the substrate.This patent is with each specially becomes the module that the remote communication module of solidifying in acquisition terminal and signal extension interface module all are designed to plug-in in the prior art; Formulate unified pin; Make and realize between the various communication modes changing arbitrarily, significantly reduced user's replacement cost and difficulty of construction.
The inventor is through concentrate on studies discovery for a long time; Although above-mentioned prior art does not adapt to the requirement that industry spot efficiency thermal technology measures collection for the research and development of the thermal technology's type efficiency data collection station technology that provides the foundation but still reach concentrating type deployment, numerous types of data collection, multiple interfaces transmission etc. fully.
The invention provides a kind of technical scheme; This scheme is disposed through concentrating type, gathers multiple thermal technology and measures parameter, and realize multiple interfaces safety, stable, transmission reliably; Make the real-time collection and the transmission of efficiency thermal technology amount become possibility, for the efficiency real time data acquisition provides technical guarantee.
Summary of the invention
The invention provides a kind of thermal technology's type efficiency data collection station, realize that the deployment of crowd's formula, numerous types of data collection, multiple interfaces transmission etc. adapt to the collection of industry spot efficiency thermal technology amount fully.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of thermal technology's type efficiency data collection station, said terminal comprises micro treatment module MCU, data memory module, power module and RS485 interface module; Said micro treatment module MCU is connected with the signal sampling module, comprises chip clock module and AD modular converter; Said data memory module is connected with said micro treatment module is two-way; Said power module is micro treatment module MCU power supply; Said RS485 interface module, micro power radio module and PLC carrier communication module are connected with micro treatment module MCU is two-way respectively.
Said signal sampling module is one or more sensors in flow sensor, humidity sensor, pressure transducer and the temperature sensor.
The standard configuration interface that said RS485 interface is said terminal, said micro power radio module and PLC carrier communication module interface are plug type, both are shared same interface standard on the terminal.
Said AD modular converter adopts 12 accuracy A D converters.
Said terminal adopt soft clock and network to the time combination intensive mode.
4 or 8 tunnel said signal sampling module is gathered at said terminal and 4~20mA current analog signal of conversion is imported its input port, perhaps adopts the direct receiving digital signals of RS485 interface module.
The interval default values of time copied and accepted in the record that said terminal is copied and accepted type and parameter of curve through main frame or palm machine to each said port setting and said parameter of curve is set.
The precision of the collection at said terminal is the B class precision of instrument function classification, perhaps is not less than 2.0 class precisions of GB regulation.
Said power module adopts PT (Potential Transformer) powering mode, and is compact so that device structure and terminal are arranged; The tested object of said power module is phase three-wire three and three-way four-wire circuit or high pressure.
Said micro treatment module MCU comprises main control chip U1, and it has ARM Cortex_M3 kernel, and operating frequency can reach 100MHZ.
Said data memory module is connected through the SPI communication interface with main control chip U1, and it comprises flash storer U4 and ferroelectric memory U5.
Said RS485 interface module includes 2 RS485 interface chips, between said interface chip and main control chip U1, carries out photoelectricity with photoelectrical coupler and isolates, and anti-stop signal is to the interference of main control chip U1.
Said PLC carrier communication module is connected with main control chip U1 is two-way, and is connected with line of electric force L, N; It comprises chip U10.
Compared with prior art, beneficial effect of the present invention is:
1. strong interference immunity, reliability is high;
2. solve the thermal technology and measured an efficiency data acquisition and a transmission difficult problem; Realize that concentrating type deployment, numerous types of data collection, multiple interfaces transmission etc. adapt to the collection of industry spot efficiency thermal technology amount fully; For efficiency data center provides efficiency basic data accurately, for national and mechanism of governments at all levels energy saving policy provide support;
3. technical scheme provided by the invention has taken into full account the different operating environmental demand, as has adopted signal transmission communication patterns such as micropower is wireless, PLC, and realizes staying expansion interface for the Based Intelligent Control of following main website.
Description of drawings
Fig. 1 is the structural drawing of thermal technology's type efficiency data collection station;
Fig. 2 is the circuit theory diagrams of micro treatment module MCU;
Fig. 3 is the circuit theory diagrams of data memory module;
Fig. 4 is the circuit theory diagrams of RS485 interface;
Fig. 5 is the circuit theory diagrams of PLC carrier communication module.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
As shown in Figure 1, a kind of thermal technology's type efficiency data collection station, said terminal comprises micro treatment module MCU, data memory module, power module and RS485 interface module; Said micro treatment module MCU is connected with the signal sampling module, comprises chip clock module and AD modular converter; Said data memory module is connected with micro treatment module is two-way; Said power module is micro treatment module MCU power supply; Said RS485 interface module, micro power radio module and PLC carrier communication module are connected with micro treatment module MCU is two-way respectively.
Said signal sampling module is one or more sensors in flow sensor, humidity sensor, pressure transducer and the temperature sensor.
The standard configuration interface that said RS485 interface is said terminal, said micro power radio module and PLC carrier communication module interface are plug type, both are shared same interface standard on the terminal.
Said AD modular converter adopts 12 accuracy A D converters.
Said terminal adopt soft clock and network to the time combination intensive mode.
4 or 8 tunnel said signal sampling module is gathered at said terminal and 4~20mA current analog signal of conversion is imported its input port, perhaps adopts the direct receiving digital signals of RS485 interface module.
Said terminal is copied and accepted type and parameter of curve through main frame or palm machine to each said port setting, and the interval default setting that the time copied and accepted in the record of said parameter of curve is 15min.
The precision of the collection at said terminal is the B class precision of instrument function classification, perhaps is not less than 2.0 class precisions of GB regulation.
Said power module adopts PT (Potential Transformer) powering mode, and is compact so that device structure and terminal are arranged; The permissible error change amount limit that the supply voltage of PT powering mode causes when in the regulation working range, changing satisfies the related request of GB/T17215.301-2007; The permissible error scope is meant that voltage causes the permissible error change value of electrical measurement unit when in 0.8Un~0.9Un and 1.1Un~1.15Un scope, changing; Be no more than 3 times of the permissible error change value limit in its regulation working range, the error at terminal changes in-100%~+ 10% scope when voltage is lower than 80% rated voltage.
The tested object of said power module is phase three-wire three and three-way four-wire circuit or high pressure.
As shown in Figure 2, said micro treatment module MCU includes the main control chip U1 that model is LPC1765.LPC1765, and it has ARM Cortex_M3 kernel, and operating frequency can reach 100MHZ.ARM Cortex-M3 CPU has 3 level production lines and Harvard structure, the three-bus of being with independently local instruction and data bus and being used for the low performance a little of peripheral hardware.
The peripheral component of LPC1765Cortex-M3 microcontroller comprises: the Flash storer of 256KB; The data-carrier store of 64KB; Ethernet mac; Usb host/slave/OTG interface; The general dma controller of 8 passages; 4 UART; Article 2, CAN passage; 2 SSP controllers; The SPI interface; 3 I2C interfaces; The I2S interface of 2-input and 2-output; 12 ADC of 8 passages; 10 DAC; Electric Machine Control PWM; The orthogonal encoder interface; 4 general purpose timers; The general PWM of 6-output; The super low-power consumption RTC and the general purpose I/O pin that reaches 70 of the power supply of band independent battery.
LPC1765 has in-system programming (ISP) and Flash program storage on the 256KB sheet of application programming (IAP) function.Integrate the Flash of enhancement mode storage accelerator and the position of Flash storer on CPU local code/data bus, then Flash can provide high performance code;
The single 3.3V power supply of LPC1765 (2.4V-3.6V).Temperature range is-40 ℃-85 ℃;
In the present invention, used UART0, UART0, UART1, UART2 and UART3 totally 4 serial ports altogether, wherein UART0 is used for infrared communication; UART1 is used for carrier wave/small wireless communication; UART2 is used for the second road RS485 communication; UART3 is used for first via RS485 communication.
FLASH storer U4 and ferroelectric memory U5 are connected on SSP1 interface P0.7, P0.8 and the P0.9 of single-chip microcomputer through spi bus, and P0.5 and P0.6 are respectively the chip select line of FLASH storer U4 and ferroelectric memory U5.
P1.19 connects the state indication pin of AT7022 computation chip, P1.20, P1.23 and P1.24 clock line and signal wire that to be single-chip microcomputer communicate by letter through spi bus with AT7022.
P1.21 is the chip select line of AT7022, and P1.22 is the reset line of AT7022, and P2.11 and P2.22 are respectively meritorious pulse of AT7022 and idle pulse output line.
P2.3 output 38K modulating wave is used for the modulation of infrared communication.The inner PWM output function of single-chip microcomputer has been used in the output of this pin.
As shown in Figure 3, said data memory module is connected through the SPI communication interface with main control chip U1, and it comprises flash storer U4 and the ferroelectric memory U5 that model is PM25CL64 that a model is MX25L3206E.
As shown in Figure 4; The RS485 interface chip that it is SN65HV03082EOR that said RS485 interface module includes 2 models; Owing to set up FTC1/2/3/4 as protective device; Prevent big voltage and the damage of big electric current to equipment, in order to problems such as the damage that solves the RS485 interface, thunderbolts, the RS485 interface can bear and load the 220V alternating current and do not damage in 5 minutes.Be to carry out photoelectricity with photoelectrical coupler between chip and the main control chip U1 of SN65HV03082EOR to isolate in model, anti-stop signal is to the interference of main control chip U1.
As shown in Figure 5, said PLC carrier communication module is connected with main control chip U1 is two-way, and is connected with line of electric force L, N; It comprises that model is the chip U10 of 74HCT244.
Said terminal has very strong noiseproof feature; Possess and improve careful Electro Magnetic Compatibility (physical construction, power supply, PCB cabling, decouple, aspect such as filtering, ground connection, photoelectricity isolation); Can adapt to abominable running environment such as the gentle high humidity of height, possess and improve careful three grades of lightning protection measures (lightning protection measures of power lead, communication interface).The industrial process that Electro Magnetic Compatibility meets the regulation of IEC61000-4 is measured and the Electro Magnetic Compatibility of control device (static discharge immunity test, radiation field immunity test, Electric Fast Transient Burst Anti-interference, external magnetic field influence, high frequency immunity test).
What should work as explanation at last is: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although the present invention has been carried out detailed explanation with reference to the foregoing description; The those of ordinary skill in said field is to be understood that: still can specific embodiments of the invention make amendment or replacement on an equal basis; And do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope that the application awaits the reply.

Claims (14)

1. thermal technology's type efficiency data collection station, said terminal comprises micro treatment module MCU, data memory module, power module and RS485 interface module; It is characterized in that:
Said micro treatment module MCU comprises chip clock module and AD modular converter, and it is connected with the signal sampling module;
Said data memory module is connected with said micro treatment module is two-way;
Said power module is said micro treatment module MCU power supply;
Said RS485 interface module, micro power radio module and PLC carrier communication module respectively with two-way connection of said micro treatment module MCU.
2. a kind of thermal technology's type efficiency data collection station as claimed in claim 1, it is characterized in that: said signal sampling module is one or more sensors in flow sensor, humidity sensor, pressure transducer and the temperature sensor.
3. a kind of thermal technology's type efficiency data collection station as claimed in claim 1; It is characterized in that: the standard configuration interface that said RS485 interface is said terminal; Said micro power radio module and PLC carrier communication module interface are plug type, and both are shared same interface standard on the terminal.
4. a kind of thermal technology's type efficiency data collection station as claimed in claim 1 is characterized in that: said AD modular converter adopts 12 accuracy A D converters.
5. a kind of thermal technology's type efficiency data collection station as claimed in claim 1 is characterized in that: said terminal adopt soft clock and network to the time combination intensive mode.
6. a kind of thermal technology's type efficiency data collection station as claimed in claim 5; It is characterized in that: 4 or 8 tunnel said signal sampling module is gathered at said terminal and 4~20mA current analog signal of conversion is imported its input port, perhaps adopts the direct receiving digital signals of RS485 interface module.
7. a kind of thermal technology's type efficiency data collection station as claimed in claim 6; It is characterized in that: the interval default values of time copied and accepted in the record that said terminal is copied and accepted type and parameter of curve through main frame or palm machine to each said port setting and said parameter of curve is set.
8. a kind of thermal technology's type efficiency data collection station as claimed in claim 7 is characterized in that: the precision of the collection at said terminal is the B class precision of instrument function classification, perhaps is not less than 2.0 class precisions of GB regulation.
9. a kind of thermal technology's type efficiency data collection station as claimed in claim 1 is characterized in that: said power module adopts PT (Potential Transformer) powering mode, and is compact so that device structure and terminal are arranged.
10. a kind of thermal technology's type efficiency data collection station as claimed in claim 9, it is characterized in that: the tested object of said power module is phase three-wire three and three-way four-wire circuit or high pressure.
11. a kind of thermal technology's type efficiency data collection station as claimed in claim 1, it is characterized in that: said micro treatment module MCU comprises main control chip U1, and it has ARM Cortex_M3 kernel, and operating frequency can reach 100MHz.
12. a kind of thermal technology's type efficiency data collection station as claimed in claim 1, it is characterized in that: said data memory module is connected through the SPI communication interface with main control chip U1, and it comprises flash storer U4 and ferroelectric memory U5.
13. a kind of thermal technology's type efficiency data collection station as claimed in claim 1; It is characterized in that: said RS485 interface module includes 2 RS485 interface chips; Between said interface chip and main control chip U1, carry out photoelectricity with photoelectrical coupler and isolate, anti-stop signal is to the interference of main control chip U1.
14. a kind of thermal technology's type efficiency data collection station as claimed in claim 1, it is characterized in that: said PLC carrier communication module is connected with main control chip U1 is two-way, and is connected with line of electric force L, N; It comprises chip U10.
CN2011103153838A 2011-10-18 2011-10-18 Thermodynamic type energy-efficiency data acquisition terminal Pending CN102506932A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103576031A (en) * 2013-11-13 2014-02-12 国家电网公司 Chip special for energy efficiency service and application method thereof
CN103644942A (en) * 2013-12-23 2014-03-19 北京电研华源电力技术有限公司 Electrical power efficiency monitoring terminal and system
CN110244601A (en) * 2019-05-23 2019-09-17 天津科技大学 A kind of data collection station system based on Internet of Things
CN112311420A (en) * 2020-05-27 2021-02-02 上海明波通信技术股份有限公司 Single-standard dual-mode communication data frame, signal transmitting and receiving method, transmitting and receiving device and communication system

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CN201654995U (en) * 2009-09-23 2010-11-24 广东汇海华天科技有限公司 Acquisition terminal of centralized meter reading system for low-voltage power consumer
CN202304874U (en) * 2011-10-18 2012-07-04 中国电力科学研究院 Thermotechnical type energy efficiency data acquisition terminal

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EP0868299A1 (en) * 1995-12-15 1998-10-07 The Goodyear Tire & Rubber Company A method and apparatus for building a laminate and forming a carcass subassembly for a tire from unreinforced tire components
CN2516977Y (en) * 2001-12-28 2002-10-16 颜友钧 Time-division rate electric energy meter with GSM/CDMA radio digital communication device
CN2708568Y (en) * 2003-01-13 2005-07-06 温州金山富华电子仪表有限公司 Spread spectrum carrier data acquisition terminal
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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN103576031A (en) * 2013-11-13 2014-02-12 国家电网公司 Chip special for energy efficiency service and application method thereof
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CN112311420A (en) * 2020-05-27 2021-02-02 上海明波通信技术股份有限公司 Single-standard dual-mode communication data frame, signal transmitting and receiving method, transmitting and receiving device and communication system

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