CN202305694U - Harmonic-wave electric quantity energy efficiency collection terminal - Google Patents
Harmonic-wave electric quantity energy efficiency collection terminal Download PDFInfo
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- CN202305694U CN202305694U CN2011203956004U CN201120395600U CN202305694U CN 202305694 U CN202305694 U CN 202305694U CN 2011203956004 U CN2011203956004 U CN 2011203956004U CN 201120395600 U CN201120395600 U CN 201120395600U CN 202305694 U CN202305694 U CN 202305694U
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Abstract
The utility model provides a harmonic-wave electric quantity energy efficiency collection terminal, which comprises a shell, a microprogrammed control unit (MCU) module, a sensor module, a power supply storage module, a measurement module and a communication module, wherein the sensor module and the power supply storage module are respectively connected with the MCU module, the measurement module and the communication module are respectively connected with the MCU module, and the communication module is selected from a recommended standard (RS)485 interface, a programmable logic controller (PLC) unit or a micropower wireless unit. The harmonic-wave electric quantity energy efficiency collection terminal is capable of collecting multiple harmonic-wave electric quantity parameters by means of cluster deployment.
Description
Technical field
The utility model relates to a kind of electrotechnical instrument and meter industry efficiency harvester, specifically relates to a kind of harmonic wave electric weight type efficiency acquisition terminal.
Background technology
The scarcity of basic technology and basic data has brought very big obstacle for the overall development of energy-conservation industry in the prior art.The efficiency basic data is to estimate the key of all power-saving technology effects accurately.Current various energy-conservation data, ability effective information confusion bring a lot of hidden danger for energy-conservation industry.Therefore; Demand urgently setting up unified efficiency data 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, for country and mechanism of governments at all levels energy saving policy provide support.
The efficiency basic data mainly depends on field real-time acquisition accurately, and the special-purpose acquisition terminal of need employing is gathered and transmitted.Actual field exists many such as electrical quantitys such as phase/line voltage/current, power factor, fundamental power, harmonic powers, and the real-time collection effect of these parameters directly influences the reliability of efficiency analysis result.Therefore, demand developing a kind of real-time harmonic wave electric weight type efficiency acquisition terminal that satisfies industry spot and efficiency monitoring requirement urgently.
The patent No. is the special change acquisition terminal that the utility model of ZL201020214236.2 has disclosed a kind of installed module communication module, in order to gather the device of special change user energy information.The remote communication module and the signal extension interface module of solidifying in the said special change acquisition terminal all are designed to the module of plug-in, and formulate unified pin.
The patent No. is that the utility model of ZL200920069055.2 has disclosed a kind of wireless data acquisition terminal, and this terminal comprises radio frequency identification module, main control module and communication module, to realize the wireless collection and the wireless transmission of data.
The patent No. is that the utility model of ZL200920279096.4 has disclosed a kind of managing electric quantity system and uses acquisition terminal, so that dispose and expansion.
The patent No. is that the utility model of ZL200920236498.6 has disclosed a kind of acquisition terminal that is used for low-voltage power user automatic meter reading system, can in main website, operate, and realizes the remote system renewal.
Above utility model is that the research and development of harmonic wave electric weight type efficiency acquisition terminal provide technical foundation, but does not reach the requirement that concentrating type deployment, numerous types of data collection, multiple interfaces transmission etc. adapt to industry spot efficiency harmonic wave electric quantity acquisition fully.
The utility model content
In order to overcome above-mentioned defective, the utility model provides a kind of harmonic wave electric weight type efficiency acquisition terminal, disposes through concentrating type, can gather multiple harmonic wave electrical parameter.
For realizing above-mentioned purpose; The utility model provides a kind of harmonic wave electric weight type efficiency acquisition terminal; Said acquisition terminal comprises: shell, MCU module, the sensor assembly and the power storage module that are connected respectively with said MCU module; Its improvements are, the metering module and the communication module that are connected respectively with said MCU module; Above-mentioned whole module all is arranged in the said shell.
In the optimal technical scheme that the utility model provides, said sensor assembly comprises flow sensor, humidity sensor, pressure transducer, temperature sensor; Said sensor assembly is transferred to said MCU module with the parameter of gathering.
In second optimal technical scheme that the utility model provides, said power storage module comprises direct supply and data-carrier store.
In the 3rd optimal technical scheme that the utility model provides, said metering module is the electric energy computation chip of model AT7022D.
In the 4th optimal technical scheme that the utility model provides, said communication module comprises RS485 interface and expansion interface; Said expansion interface can insert PLC unit or micropower radio-cell according to communication requirement.
In the 5th optimal technical scheme that the utility model provides, said shell is provided with the display device that shows the parameter collect and the auxiliary terminal of image data; Said display device is connected with said MCU module, and said auxiliary terminal is connected with said metering module, said sensor assembly and said communication module respectively.
In the 6th optimal technical scheme that the utility model provides, said MCU module is that model is the chip of ATXmega32A4.
In the 7th optimal technical scheme that the utility model provides, said data-carrier store is that model is the chip of AT24C64.
In the 8th optimal technical scheme that the utility model provides, said PLC unit is that model is the chip of 74HTC244, and said micropower radio-cell is that model is the chip of CC1100.
In the 9th optimal technical scheme that the utility model provides, said display device is 2048 dichroic liquid crystal display screens, and size is 3.5 inches.
With the prior art ratio; The technical scheme that the utility model provides can not only realize the demonstration of multiple electric energy information according to the actual needs of efficiency test and appraisal, and has realized multiple interfaces safety, stable, transmission reliably; Make the real-time collection and the transmission of efficiency harmonic wave electric weight type data become possibility; Particularly 2 to 19 subharmonic are gathered in real time, solved the high shortcoming of application intelligent ammeter cost, be suitable for popularizing in an all-round way; And can be efficiency data center efficiency basic data accurately is provided, for energy saving policy provides technical support; In addition, this terminal has also taken into full account the different operating environmental demand, can select signal transmission such as the wireless or PLC of micropower like communication mode, and realizes that Based Intelligent Control stays expansion interface for following main website; Moreover; Said acquisition terminal strong interference immunity; The electro-magnetic screen layer that is adopted possesses and improves careful electromagnetic Compatibility Design, can make acquisition terminal when rugged surroundings such as high low temperature, high pressure and high humidity are moved, exempt electromagnetic interference (EMI), also possesses and improves three grades of careful lightning protection measures.
Description of drawings
Fig. 1 is the inner structure synoptic diagram of harmonic wave electric weight type efficiency acquisition terminal.
Fig. 2 is the anterior synoptic diagram of acquisition terminal shell.
Fig. 3 is the rear portion and the side schematic view of acquisition terminal shell.
Fig. 4 is the auxiliary terminal synoptic diagram.
Fig. 5 is the long-range local synoptic diagram of RS485 interface.
Fig. 6 is the long-range local synoptic diagram of PLC unit and micropower radio-cell.
Embodiment
Extremely shown in Figure 4 like Fig. 1; Said harmonic wave electric weight type efficiency acquisition terminal is gathered phase voltage, phase current and the neutral current analog quantity of voltage sensor, current sensor, obtains power, power factor, frequency, the humorous information such as electric energy that involves through the computation chip calculation process.Realize the data operation storage and management by micro-control unit (MCU), realize uplink communication through modes such as RS485 interface, PLC or micropower are wireless again.
Said harmonic wave electric weight type efficiency acquisition terminal comprises shell, and said shell is provided with the display device that shows the parameter collect and the auxiliary terminal of image data; Said display device is connected with said MCU module, and said auxiliary terminal is connected with said metering module, said sensor assembly and RS485 interface, PLC module or micro power radio module respectively.
Wherein said computation chip is selected AT7022D type electric energy computation chip for use.
Said micro-control unit (MCU) module is the core of whole terminal, and said MCU module is that model is the chip of ATXmega32A4; Following incident of said MCU module records and following function: voltage/current curve, powertrace, harmonic curve, stride that monthly billing, electric flux are freezed, harmonic power curve, the out-of-limit incident of harmonic wave, the out-of-limit logout of ABC current/voltage deviation, power on, when power down, zero clearing, the phase failure, school and decompression/defluidization incident.
Wherein, said harmonic curve is meant 2-19 time harmonic wave and the total percent harmonic distortion THDU of voltage, the total percent harmonic distortion THDI of electric current;
Said power down is meant that three-phase voltage all is lower than the electric energy meter critical voltage, and load current is not more than the operating mode of 5% rated current.
Said decompression is meant that in three-phase power supply system certain phase load electric current is greater than starting current, but the voltage of voltage circuit is lower than at 78% o'clock of the electric energy meter reference voltage, and the duration was greater than 1 minute.
Said defluidization is meant in three-phase power supply system, and three-phase voltage is greater than the critical voltage of electric energy meter, and arbitrary phase or two is less than starting current in the three-phase current, and other phase line load currents are greater than the operating mode of 5% rated current.
Said electric flux freezes incident and is meant the current electric flux that freezes is notified.
To said voltage/current curve, powertrace, stride monthly billing, harmonic power curve, the out-of-limit incident of harmonic wave, the out-of-limit incident of ABC current/voltage deviation, power on, the record when power down, zero clearing, the phase failure and school all meets following national standard: GB12326-2000 standard, GB12325-2003 standard, GB/T 14549-1993 standard and GB/T 15945-1995 standard.
Like Fig. 5, shown in 6; Said communication module is utilized one of them in RS485 interface, micropower radio-cell or the PLC unit; Wherein the RS485 interface is as the standard configuration interface of instrument; Micro power radio module and PLC module are designed to the form of pluggable expansion interface, on instrument, use same interface standard, so that use the respective communication module according to environment difference and cost.
Wherein, said PLC unit is that model is the chip of 74HTC244; Said micropower radio-cell is that model is the chip of CC1100.
The specification of said CC1100 chip is: working frequency range: 402～470mhz; Little emissive power: maximum transmission power 10mw; Quiescent current＜10ua; Said CC1100 chip is supported the high precision compensation crystal; Can carry out multichannel such as 8/16/32 channel selects and has a multiple user interface such as rs232/rs485/uart interface; And support traffic rate such as 1200/2400/4800/9600/19200/38400bps; Support communication formats such as 8n1,8e1, also can accomplish receiving automatically, fast/send out mode switch, be user-friendly to.
Said harmonic wave electric weight type efficiency acquisition terminal taked soft clock and network to the time the intensive mode that combines design, reduce hardware configuration complexity and power consumption, make operating ambient temperature, humidity, atmospheric pressure all satisfy power information acquisition system standard; For reducing installation cost, can adopt the chip clock.
Said harmonic wave electric weight type efficiency acquisition terminal adopts the PT powering mode; It is compact to make device structure and terminal arrange; The power supply test object is phase three-wire three and three-phase and four-line circuit; Also comprise simultaneously the high-tension measurement object, general phase three-wire three is considered the PT power supply, and the permissible error change amount limit that supply voltage causes when in the regulation working range, changing satisfies the related request of GB/T17215.301-2007.
Wherein, Said permissible error scope; The permissible error change value that voltage causes 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 of electric energy meter changes in+10%～-100% scope when voltage is lower than 80% rated voltage.
Wherein, said data acquisition and storage, because this acquisition terminal does not measure usefulness as chargeing, acquisition precision is according to the equipment B class precision.Perhaps the acquisition terminal precision reaches 2 class precisions that are not less than of (GB/T17215.321-2008/IEC 62053-21:2003) regulation.Curve record is copied and accepted the time interval and is defaulted to 15min, and can be provided with flexibly; According to the size of the data volume of being gathered, select suitable storage device size.
What wherein, said data-carrier store used is the chip of model as AT24C64; Said storer can be stored curve data and event data respectively; Said curve data is: 7 multiply by 96 points, and 520 Byte of each some storage totally 520 multiply by 7 and multiply by the 96=342K byte; Said event data is: store 20 kinds of incidents altogether, and 10 of every kind of logouts, every incident 20 bytes totally 20 multiply by 10 and multiply by the 20=4K byte.
The shell of said harmonic wave electric weight type efficiency acquisition terminal is coated with electro-magnetic screen layer, and said electro-magnetic screen layer is formed by electroconductive polymer layer, and said electroconductive polymer layer can be the material with solubility or dispersiveness, as: polyaniline, polythiophene and polyparaphenylene; Said electroconductive polymer layer is preferably processed by polyethylene dioxythiophene.
The size of said harmonic wave electric weight type efficiency acquisition terminal can be long 260mm to 270mm, wide 165mm to 175mm, high 70mm to 80mm; Most preferred being of a size of: long 265mm, wide 170mm, high 75mm.
What need statement is that the utility model content and embodiment are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the qualification to the utility model protection domain.Those skilled in the art can do various modifications, be equal to replacement or improvement under the spirit and principle inspiration of the utility model.But these changes or modification are all in the protection domain that application is awaited the reply.
Claims (10)
1. harmonic wave electric weight type efficiency acquisition terminal; Said acquisition terminal comprises: shell, MCU module, the sensor assembly and the power storage module that are connected respectively with said MCU module; It is characterized in that the metering module and the communication module that are connected respectively with said MCU module; Above-mentioned whole module all is arranged in the said shell.
2. acquisition terminal according to claim 1 is characterized in that said sensor assembly comprises flow sensor, humidity sensor, pressure transducer, temperature sensor; Said sensor assembly is transferred to said MCU module with the parameter of gathering.
3. acquisition terminal according to claim 1 is characterized in that, said power storage module comprises direct supply and data-carrier store.
4. acquisition terminal according to claim 1 is characterized in that, said metering module is the electric energy computation chip of model AT7022D.
5. acquisition terminal according to claim 1 is characterized in that said communication module comprises RS485 interface and expansion interface; Said expansion interface can insert PLC unit or micropower radio-cell according to communication requirement.
6. acquisition terminal according to claim 1 is characterized in that, said shell is provided with the display device that shows the parameter collect and the auxiliary terminal of image data; Said display device is connected with said MCU module, and said auxiliary terminal is connected with said metering module, said sensor assembly and said communication module respectively.
7. acquisition terminal according to claim 2 is characterized in that, said MCU module is that model is the chip of ATXmega32A4.
8. acquisition terminal according to claim 3 is characterized in that, said data-carrier store is that model is the chip of AT24C64.
9. acquisition terminal according to claim 5 is characterized in that, said PLC unit is that model is the chip of 74HTC244, and said micropower radio-cell is that model is the chip of CC1100.
10. acquisition terminal according to claim 6 is characterized in that, said display device is 2048 dichroic liquid crystal display screens, and size is 3.5 inches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203956004U CN202305694U (en) | 2011-10-18 | 2011-10-18 | Harmonic-wave electric quantity energy efficiency collection terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203956004U CN202305694U (en) | 2011-10-18 | 2011-10-18 | Harmonic-wave electric quantity energy efficiency collection terminal |
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| CN202305694U true CN202305694U (en) | 2012-07-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435889A (en) * | 2011-10-18 | 2012-05-02 | 中国电力科学研究院 | Harmonic electric quantity type energy efficiency acquisition terminal |
| CN103645376A (en) * | 2013-11-15 | 2014-03-19 | 益和电气集团股份有限公司 | Digital current voltmeter of wireless transmission signal |
| CN104965131A (en) * | 2015-05-18 | 2015-10-07 | 国网山东省电力公司东营供电公司 | Apparatus for detecting energy efficiency of key energy-consuming equipment in smart area |
-
2011
- 2011-10-18 CN CN2011203956004U patent/CN202305694U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435889A (en) * | 2011-10-18 | 2012-05-02 | 中国电力科学研究院 | Harmonic electric quantity type energy efficiency acquisition terminal |
| CN103645376A (en) * | 2013-11-15 | 2014-03-19 | 益和电气集团股份有限公司 | Digital current voltmeter of wireless transmission signal |
| CN104965131A (en) * | 2015-05-18 | 2015-10-07 | 国网山东省电力公司东营供电公司 | Apparatus for detecting energy efficiency of key energy-consuming equipment in smart area |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140321 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
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| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
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