CN203039432U - Intelligent concentrator - Google Patents
Intelligent concentrator Download PDFInfo
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- CN203039432U CN203039432U CN2012206782028U CN201220678202U CN203039432U CN 203039432 U CN203039432 U CN 203039432U CN 2012206782028 U CN2012206782028 U CN 2012206782028U CN 201220678202 U CN201220678202 U CN 201220678202U CN 203039432 U CN203039432 U CN 203039432U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The utility model discloses an intelligent concentrator. The intelligent concentrator comprises a processor module which is connected with a real-time clock module, a display module, a Flash storage module, an EEP-ROM storage module, an uplink communication module, a power supply module, a four-path serial communication interface, a button processing module and a reset module. The intelligent concentrator further comprises a panel which includes a display screen, an indicating lamp, buttons, a reset key and an antenna, wherein the buttons are connected with the button processing module, the display screen is connected with the display module, the reset key is connected with the reset module, and the antenna is connected with the uplink communication module. The intelligent concentrator provided by the utility model has the advantages of multiple functions, large storage capacity and high working efficiency.
Description
Technical field
The utility model relates to a kind of power control unit, particularly a kind of intelligent concentrator.
Background technology
Intelligent grid is the basic orientation of world's power network development now, how to realize intelligent informationization, the scheduling lean of administration of power networks, accomplish to have between power consumer and the electrical network interactive easily, for the user provides personalized management of power use service, become the key subjects of pendulum in face of the administration of power networks department of various places, various countries.And these all need the automatic quick accurate electricity consumption data with each user of remote power kilowatt meter reading-out system to send electric administrative department to, for power department analysis, scheduling, managing power provide foundation.
The remote power kilowatt meter reading-out system generally comprises user side electric energy meter, concentrator and three parts of background management system.Wherein, concentrator is accepted the control command of background management system, gathers the data of each user side electric energy meter, uploads data to background management system again and analyzes and handle.In present stage, existing concentrator function singleness, memory capacity is little, operating efficiency is low, has increased the workload that input cost has also strengthened each power department.
The utility model content
The purpose of this utility model is to provide a kind of can realize that multiple task, memory capacity are big, the intelligent concentrator of high efficiency.For achieving the above object, the utility model provides following technical scheme:
A kind of intelligent concentrator, comprise: processor module, respectively with real-time clock module, display module, FLASH memory module, EEP-ROM memory module, uplink communication module, power module, 4 road serial communication interfaces, press key processing module, reseting module connects.
Also comprise panel, described panel comprises display screen, indicator light, button, reset key, antenna; Described button is connected by key processing module with described, and described display screen is connected with described display module, and described reset key is connected with described reseting module, and described antenna is connected with described uplink communication module.
Further, also comprise the infrared communication module, described infrared communication module is connected with described processor module, is used for carrying out the short distance infrared communication with local scene equipment, be convenient to the user concentrator is carried out the field programming setting, or directly gather the data of storage in the concentrator.
Preferably, described serial communication interface is the RS485 interface.4 road RS485 interfaces, wherein 3 road RS485 interfaces are used for gathering user side electric energy meter data, the data that every road RS485 interface can be gathered 64 electric energy meters, the data that can gather 192 electric energy meters at most altogether.Also have 1 road RS485 interface to be used for safeguarding, local field apparatus arranges the data of storing in the parameter of concentrator and the on-the-spot copy reading concentrator by this RS485 interface.
Optionally, described uplink communication module comprises: Power Line Carrier Communication Module, telephone communication module, GPRS/CDMA communication module, ethernet communication module and corresponding communication interface.Described uplink communication module sends the remote data that collects to main website, and main website also can recall the real-time or historical data in the concentrator by the uplink communication module.
Further, also comprise the voltage acquisition module that adopts analog front circuit, described voltage acquisition module is connected with described processor module, can in time collect the variation of voltage accurately, realizes the rate of qualified voltage acquisition function.
Preferably, it is the microcontroller of Contex-M3 that described processor module is selected kernel, and dominant frequency is up to 120MHz, and arithmetic speed is up to 150DMIPS, powerful, the speed of service fast and good in anti-interference performance.
Preferably, described FLASH memory module adopts the high-capacity FLASH memory, also can not lose the storage data during concentrator power down, and its memory capacity can reach 64M, the data entanglement can be effectively prevented, the data more than one month of reaching of 192 electric energy meters nearly can be stored at most.
Described EEP-ROM memory module is the electro erasible programmable memory, and it is erasable to be that least unit is carried out with a byte, makes things convenient for the user that the supplemental characteristic of concentrator is set.
Described power module provides required DC power supply for other all module, can realize that AC signal is input to the electrical isolation of DC operation module, guarantees the work safety of each module.
Preferably, described display screen is large-screen lattice liquid crystal display screen.
The utility model intelligence concentrator is by 3 road RS485 interface copy reading electric energy meter data, and every road can be made a copy of 64 electric energy meters at most, altogether the data that can make a copy of 192 electric energy meters at most.And by the uplink communication module, utilize communication modes such as GPRS/CDMA wireless public network or 10/100Base T Ethernet, carry out two-way communication with main website, with the data upload that obtains to main website and accept the control of main website.
The beneficial effects of the utility model are:
1. adopt the high-speed industrial microprocessor, practicality is good, and speed is fast, and anti-interference is good.
2. adopt the storage of high-capacity FLASH data, effectively prevent loss of data, entanglement.
3. have multiple function, high efficiency has been saved input cost.
4. many kinds of communication modes are optional, can select the GPRS/CDMA wireless public network as required, 10/100BaseT Ethernet, communication modes such as infrared communication.
5. the large-screen dot lcd shows, makes the operating state of concentrator and measured value show more directly perceived.
6. accord with Q/GDW 374.2-2009 " power consumer power information acquisition system technical specification second portion: centralized automatic meter-reading terminal technology standard ", Q/GDW375.3-2009 " power consumer power information acquisition system pattern standard third part: pattern standard ", communication unit accord with Q/GDW 374.3-2009 " power consumer power information acquisition system technical specification third part: communication unit technical specification ";
The communication protocol of main website is supported Q/GDW 376.1-2009 " power consumer power information acquisition system communication protocol first: main website and acquisition terminal communication protocol ".Concentrator can be supported TCP and two kinds of communication modes of UDP.The communication protocol of concentrator and electric energy meter meets DL/T 645-1997, DL/T 645-2007 and the file of putting on record.
7. Electro Magnetic Compatibility excellence, can resist interference such as extraneous conductibility ringing pulse group, magnetic field, static, lightning surge, the electromagnetic compatibility requirement of accord with Q/GDW 374.2-2009 " power consumer power information acquisition system technical specification second portion: centralized automatic meter-reading terminal technology standard ".
Description of drawings
Fig. 1 is the structural representation of the utility model intelligence concentrator embodiment.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.Be illustrated in figure 1 as the structural representation of the utility model embodiment.
Present embodiment comprises: processor module 11, respectively with real-time clock module 1, display module 2, FLASH memory module 3, EEP-ROM memory module 4, uplink communication module 5, infrared communication module 6, power module 7,4 road RS485 interfaces 8, press key processing module 9, reseting module 10 connects.
Also comprise panel, described panel comprises display screen, indicator light, button, reset key, antenna; Described button is connected by key processing module with described, and described display screen is connected with described display module, and described reset key is connected with described reseting module, and described antenna is connected with described uplink communication module.
Described infrared communication module is used for and local scene equipment carries out the short distance infrared communication, is convenient to the user concentrator is carried out the field programming setting, or directly gather the data of storage in the concentrator.
Described 4 road RS485 interfaces, wherein 3 road RS485 interfaces are used for gathering user side electric energy meter data, the data that every road RS485 interface can be gathered 64 electric energy meters, the data that can gather 192 electric energy meters altogether.Also have 1 road RS485 interface to be used for safeguarding, local field apparatus arranges the data of storing in the parameter of concentrator and the on-the-spot copy reading concentrator by this RS485 interface.
Optionally, described uplink communication module comprises: Power Line Carrier Communication Module, telephone communication module, GPRS/CDMA communication module, ethernet communication module and corresponding communication interface.Described uplink communication module sends the remote data that collects to main website, and main website also can recall the real-time or historical data in the concentrator by the uplink communication module.
It is the microcontroller of Contex-M3 that described processor module is selected kernel, and dominant frequency is up to 120MHz, and arithmetic speed is up to 150DMIPS, powerful, the speed of service fast and good in anti-interference performance.
Described FLASH memory module adopts the high-capacity FLASH memory, can not lose the storage data during concentrator power down yet, its memory capacity can reach 64M, can effectively prevent the data entanglement, can store the user data more than one month of reaching of 192 electric energy meters nearly at most.
Described EEP-ROM memory module is the electro erasible programmable memory, and it is erasable to be that least unit is carried out with a byte, makes things convenient for the user that the supplemental characteristic of concentrator is set.
Described power module provides required DC power supply for other all module, can realize that AC signal is input to the electrical isolation of DC operation module, guarantees the work safety of each module.
Described display screen is large-screen lattice liquid crystal display screen.
Described indicator light comprises power supply indicator, alarm indicator, transmission indicator light.
Described power supply indicator: when powering on, power supply indicator is bright, and during dead electricity, power supply indicator goes out.
Described alarm indicator: during the concentrator operate as normal, alarm indicator goes out; When concentrator outage or fault, alarm indicator is bright.
Described transmission indicator light: be the red and green color indicator light, when concentrator from electric energy meter during image data, the green light flicker, when concentrator outwards transmits data, blinking red lamp.
The utility model by 3 road RS485 interfaces can copy be taken to many 3 have the RS485 communication interface, meet People's Republic of China's power industry standard multi-functional total electric energy meter of " DL/T645-1997 multifunctional electric energy meter communication protocol ".The mode of connection of total electric energy meter can only be copied and get the meritorious total electric energy one item number certificate of forward as being single-phase; As be phase three-wire three or the three-phase and four-line mode of connection, can gather information such as metering device interior electric current, voltage, energy data, maximum demand and time thereof, active power, reactive power, power factor automatically, and form history curve.Concentrator is the cycle with the minimum of system's setting time interval of checking meter, and total electric energy meter is carried out data acquisition and storage, and calls together initiatively or in main website and to send the data to main website when surveying.
Each total electric energy meter is arranged with maximum 64 sub-electric energy meters, and concentrator can be copied the data of getting maximum 192 electric energy meters altogether.
Concentrator adopts to copy in real time and gets the electric energy meter data or regularly copy and get the electric energy meter data.
Copy in real time and get, when namely calling survey together in main website, copy and get and send data back to main website.
Regularly copy and get and can realize with task state, concentrator provides multiple timing working mode, comprises timing meter reading, regularly uploads data etc.Described timing meter reading, the automatic circle collection electric energy meter of the collection period data that concentrator arranges according to main website.Data are uploaded in described timing, and concentrator is uploaded data automatically according to the time of main website setting.
Concentrator also has automatic benefit and copies function, at the appointed time not copy reading mend automatically to the electric energy meter of data and copy.When benefit is copied failure, generate logout, and report warning to main website.
In the present embodiment, management control and the exchanges data of concentrator realized by following technology:
In the present embodiment, concentrator carries out initialization to hardware, parameter region, data field respectively after receiving the initialization command that main website issues, and parameter region is set to default value, the data field zero clearing.
In the present embodiment, the clock that concentrator can receive main website call together survey and to the time order, time error is no more than ± 3s, the day timing error of the real-time clock of concentrator＜± 1s/d, after the power supply dead electricity, clock can keep operate as normal.Simultaneously concentrator enough by local channel to electric energy meter broadcast to the time.
In the present embodiment, long-range by the uplink communication module by main website, perhaps pass through the infrared communication module by local device, inquire about and arrange the concentrator parameter.Described parameter comprises: concentrator archives parameter, concentrator messaging parameter, as main website address (comprising main channel and alternate channel), communication protocol, IP address etc.
In the present embodiment, long-range by the uplink communication module by main website, perhaps by local device by the infrared communication module, inquiry and the setting scheme of checking meter, the described scheme of checking meter comprises contents such as the collection period that concentrator is set, the time of checking meter, image data item.
In the present embodiment, adopt 1 road RS485 interface as the local maintenance interface, support local device that the parameter of concentrator and the data of the interior storage of on-the-spot copy reading concentrator are set; Check meter and all are provided with authority and Password Management in local parameter setting and scene.
In the present embodiment, send particular command frame to concentrator by the long concentrator programming button of pressing more than 2 seconds or by infrared communication module, concentrator can send customizing messages to main website.
In the present embodiment, concentrator analysis and storage data realize by following technology:
Preserve the initial data of checking meter of every day, can effectively preserve according to task and count to arrange the time that data are preserved; Be stored in the initial data in the concentrator, power down is not lost.
In the present embodiment, concentrator is gathered data such as the current forward active energy indicating value of each electric energy meter, current reverse active energy electric energy indicating value, current meritorious maximum demand and time of origin, and the parameter of record concentrator self, with data such as master station communication flow; The data of electric energy meter have markers when preserving.The data cases of gathering and recording sees table 1 for details:
The list of data items of the collection of table 1 concentrator and record
In the present embodiment, concentrator can be on request to the image data storage of classifying, as historical day data, day freezing data of checking meter, curve data, historical month data etc.Curve freezing data density is 15 minutes.Wherein historical day data comprise: day meritorious maximum demand and time of origin, day forward active energy indicating value, day oppositely active energy indicating value, concentrator day power-on time, the cumulative frequency that resets concentrator day, concentrator and main website day communication flows, check meter day meritorious maximum demand and a time of origin, day forward active energy indicating value of checking meter, the meritorious total electric energy indicating value curve of forward, oppositely gain merit total electric energy indicating value curve, voltage curve, current curve.Historical month data comprise: month meritorious maximum demand and time of origin, month forward active energy indicating value, the moon be active energy indicating value, the power supply time concentrator moon, the cumulative frequency that resets by the concentrator moon, month out-of-limit statistics of voltage, concentrator and main website moon communication flows oppositely.The concentrator following data of storage of can also classifying: freeze energy data the zero point 31 day (zero point next day) of each electric energy meter, checked meter in 12 months day freeze energy data, 4 integral point energy datas that freeze.
Further, present embodiment also comprises voltage acquisition module, adopts analog front circuit, can in time collect the variation of voltage accurately, realizes the rate of qualified voltage acquisition function.Concentrator to be minute being statistical unit, the rate of qualified voltage information on statistics same day, and keep the rate of qualified voltage information of the previous day.The described rate of qualified voltage information content comprises: presidential metering number, super upper limit number of times, super lower limit number of times; Rate of qualified voltage, disqualification rate, disqualification rate on the lower side on the upper side; Day maximum voltage value and time of origin; Day minimum voltage value and time of origin; Per day magnitude of voltage.Rate of qualified voltage bound threshold value is defaulted as 198V--235V, can certainly set the bound threshold value as required, and present embodiment is not done restriction to this.
In this enforcement, concentrator can carry out self check automatically, and discovering device or communication have when unusual, carry out logout and alarm function automatically.Further, can also monitor the electric energy meter operation conditions, when finding the electrical energy meter fault situation, by logout requirement record time of origin and abnormal data, and initiatively send a warning message to main website.Concentrator can be preserved 500 logouts of nearest generation.
Concentrator can be pressed critical event and the general event book of final entry with event according to the event attribute that arranges.Described event comprises: parameter modification, the failure of checking meter, concentrator stop/power on, clock of power meter is overproof etc.The main event of record comprises: data initialization and version change record, parameter lose that record, parameter modification record, electric energy meter parameter modification, electric energy meter time are overproof, event is stopped/powered on to electrical energy meter fault information, concentrator, concentrator failure logging, the decline of electric energy meter indication, RS485 are checked meter failure, and the super thresholding of master station communication flow, the displacement of electric energy meter running status word.
The utility model is except satisfying meter-reading function, also have functions such as monitoring alarm, parameter setting, classification storage, field device communicating, further also have voltage acquisition and rate of qualified voltage statistical function, saved related work and the expense of buying and installing the rate of qualified voltage detector for the user.The utility model adopts the high-capacity FLASH memory, storage nearly 192 electric energy meters reach data more than one month, make things convenient for user's accurate inquiry power information in real time.Hardware has been investigated domestic and international correlation technique in design, selected for use dominant frequency up to 120MHz, the microprocessor of arithmetic speed 150DMIPS, given full play to its advantage in the circuit design, cooperate big capacity Flash memory and multiple communication module, can finish the multiple-task demand, arithmetic speed is fast, good in anti-interference performance, greatly raising concentrator performance.
Embodiment shown in above foundation is graphic describes structure of the present utility model, feature and action effect in detail; the above only is preferred embodiment of the present utility model; but the utility model does not limit practical range with shown in the drawing; every change of doing according to conception of the present utility model; or be revised as the equivalent embodiment of equivalent variations; when not exceeding specification yet and illustrating contain spiritual, all should be in protection range of the present utility model.
Claims (7)
1. intelligent concentrator is characterized in that comprising:
Processor module, respectively with real-time clock module, display module, FLASH memory module, EEP-ROM memory module, uplink communication module, power module, 4 road serial communication interfaces, press key processing module, reseting module connects.
2. intelligent concentrator according to claim 1 is characterized in that:
Also comprise panel, described panel comprises display screen, indicator light, button, reset key, antenna; Described button is connected by key processing module with described, and described display screen is connected with described display module, and described reset key is connected with described reseting module, and described antenna is connected with described uplink communication module.
3. intelligent concentrator according to claim 1 is characterized in that:
Also comprise the infrared communication module, described infrared communication module is connected with described processor module.
4. intelligent concentrator according to claim 1 is characterized in that:
Described serial communication interface is the RS485 interface.
5. intelligent concentrator according to claim 1 is characterized in that:
Described uplink communication module comprises: Power Line Carrier Communication Module, telephone communication module, GPRS/CDMA communication module, ethernet communication module and corresponding communication interface.
6. intelligent concentrator according to claim 1 is characterized in that:
Also comprise the voltage acquisition module that adopts analog front circuit, described voltage acquisition module is connected with described processor module.
7. intelligent concentrator according to claim 1 is characterized in that:
Described concentrator is supported 192 electric energy meters at most.
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| CN2012206782028U CN203039432U (en) | 2012-12-10 | 2012-12-10 | Intelligent concentrator |
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| CN2012206782028U CN203039432U (en) | 2012-12-10 | 2012-12-10 | Intelligent concentrator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558453A (en) * | 2013-10-22 | 2014-02-05 | 国家电网公司 | System for collecting maximum demand of multi-power-source power supply direct power purchase customers |
| CN106652417A (en) * | 2017-01-13 | 2017-05-10 | 成都中科慧源科技有限公司 | Double-module wireless communication concentrator |
| CN107798853A (en) * | 2017-10-16 | 2018-03-13 | 陕西特恩电子科技有限公司 | A kind of remote terminal tester |
| CN108303670A (en) * | 2018-03-28 | 2018-07-20 | 合肥云智物联科技有限公司 | A kind of electric field terminal fault error comprehensive diagnosis method |
| CN109064732A (en) * | 2018-10-16 | 2018-12-21 | 四川中电启明星信息技术有限公司 | A kind of ammeter data acquisition method, device, system and readable storage medium storing program for executing |
| CN109410553A (en) * | 2018-11-15 | 2019-03-01 | 安徽盛联电力科技有限公司 | A kind of Multi-analog-acquisiintelligent intelligent power concentrator |
-
2012
- 2012-12-10 CN CN2012206782028U patent/CN203039432U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558453A (en) * | 2013-10-22 | 2014-02-05 | 国家电网公司 | System for collecting maximum demand of multi-power-source power supply direct power purchase customers |
| CN103558453B (en) * | 2013-10-22 | 2017-01-04 | 国家电网公司 | Multiple feed straight power purchase client's maximum demand acquisition system |
| CN106652417A (en) * | 2017-01-13 | 2017-05-10 | 成都中科慧源科技有限公司 | Double-module wireless communication concentrator |
| CN107798853A (en) * | 2017-10-16 | 2018-03-13 | 陕西特恩电子科技有限公司 | A kind of remote terminal tester |
| CN108303670A (en) * | 2018-03-28 | 2018-07-20 | 合肥云智物联科技有限公司 | A kind of electric field terminal fault error comprehensive diagnosis method |
| CN109064732A (en) * | 2018-10-16 | 2018-12-21 | 四川中电启明星信息技术有限公司 | A kind of ammeter data acquisition method, device, system and readable storage medium storing program for executing |
| CN109410553A (en) * | 2018-11-15 | 2019-03-01 | 安徽盛联电力科技有限公司 | A kind of Multi-analog-acquisiintelligent intelligent power concentrator |
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| C14 | Grant of patent or utility model | ||
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 3, No. Patentee after: QINGDAO SHIZE POWER TECHNOLOGY CO.,LTD. Address before: Zhuzhou Dongtai Road, Laoshan District 266555 in Shandong province Qingdao City Keda Industrial Park on the third floor Patentee before: QINGDAO SHIZE ELECTRONIC METER Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |