CN201893605U - Intelligent on-line testing and optimal management control device of high-frequency switch power supply - Google Patents
Intelligent on-line testing and optimal management control device of high-frequency switch power supply Download PDFInfo
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- CN201893605U CN201893605U CN2010201146648U CN201020114664U CN201893605U CN 201893605 U CN201893605 U CN 201893605U CN 2010201146648 U CN2010201146648 U CN 2010201146648U CN 201020114664 U CN201020114664 U CN 201020114664U CN 201893605 U CN201893605 U CN 201893605U
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
Abstract
The utility model provides an intelligent on-line testing and optimal management control device of a high-frequency switch power supply, which comprises sensors, a data processor, an ADC (analog-digital converter), a data storage, a fault diagnostic device, a performance sequencer, a module selector and a controller, wherein the sensors are used for collecting characteristic signals of working condition of multiple switch power supply modules; the data processor is used for magnifying and filtering the characteristic signals; the ADC is used for analog-to-digital conversion of the processed signals; the data storage is used for storing the converted characteristic value data as well as multiple fault diagnosis feature subsets and performance diagnosis feature subsets; the fault diagnostic device is used for reading the characteristic value data and the fault diagnosis feature subsets, and storing the fault power supply module which needs to exit and the fault weight level; the performance sequencer is used for reading the characteristic value data and the performance diagnosis feature subsets as well as the fault weight level, and storing the sequence result of merits and inferiors of the power supply module; the module selector is used for reading the sequence result, and storing the high range power supply module as a replaceable module; and the controller is used for turning off a switch corresponding to the fault module and turning on a switch corresponding to the replaceable module.
Description
Technical field
The utility model relates to communication, electric power, electronic technology field, particularly a kind of device that is used for online detection communication base station high-frequency switching power supply module fault.
Background technology
Along with the continuous expansion of communication service, communication base station increases sharply and marginalisation gradually, and the base station again more build mountain region and unattended operation in, makes the workload and the difficulty of maintenance management of communication base station be multiplied.Communication power supply is the core of communication base station, can safely and steadily run in order to make communication base station, need detect and safeguards power supply.Usually overhaul with offline mode to on-the-spot by the attendant at present, be subjected to the restriction of condition that inconvenience is arranged more.Particularly moment the fault that the hidden failure that recovers again occurs and must on-line operation just can reflect, often can't in time detect and obtain.
The base station is furnished with the supplied by AC/DC electricity system, and high frequency switch power plays function served as bridge betwixt, is key link between the two.Want the power reguirements of proof load on the one hand, again batteries is advanced charge maintenance on the other hand.In design, " communication power supply equipment installation and design standard " requires the load capacity of Switching Power Supply must satisfy maximum load current to add bulk charge stream and add 1 Redundancy Design again.
General high frequency switch power is all become by a plurality of module combinations, and at full capacity and the time of all the filling time scale that accounts for whole work be smaller.Fill every year once half a year or one, each 12 hours.
The utility model content
(1) technical problem
The technical problems to be solved in the utility model is the defective that overcomes off-line inspection switch power supply in the prior art, utilize the switch power module most time all to be operated in these characteristics of working region of underloading, poor efficiency, realize the online detection and the maintenance of communication base station high-frequency switching power supply module by intelligent management.
(2) technical scheme
For solving the problems of the technologies described above, the technical solution of the utility model provides a kind of high frequency switch power intelligent online detection optimizing management control device, comprising:
Transducer is used to gather characteristic signal a plurality of switch power modules, that characterize its operating state separately;
Data processor amplifies and Filtering Processing described characteristic signal;
Analog to digital converter carries out obtaining after the analog-to-digital conversion characteristic value data of described a plurality of power modules to the signal of described data processor output;
Data storage, the characteristic value data after the storage conversion, and a plurality of fault judgement character subset and performance judging characteristic subclass;
The fault judgement device reads characteristic value data and fault judgement character subset in the described data storage, trouble power module id that storage need be withdrawed from and fault weight grade thereof;
The performance sorting unit reads described characteristic value data and performance judging characteristic subclass in the described data storage, and reads the fault weight grade of storing in the described fault judgement device, and stores the good and bad ranking results of described a plurality of power modules;
The module selector reads the good and bad ranking results of described performance sorting unit, and the higher power module of storage ranking is as the replacement module of malfunctioning module;
Controller, close with described fault judgement device in the corresponding switch of trouble power module stored so that its off-line, and the corresponding switch of replacement module that unlatching and described module selector are stored is so that it is online.
Further, also comprise:
Maintainer's operator, comprise that keyboard, display screen and far-end transmit serial communication circuit, be used for the repair and maintenance personnel to described data storage input instruction, parameter, and the operating state, electrical measurement state, the temperature survey state that show each module according to described instruction.
Wherein, the frequency of condition of instant error operating state also appears characterizing in the recording feature value signal in described data storage, and when described frequency reached certain threshold value, the power module that described fault judgement device is corresponding with it was stored as malfunctioning module.
Wherein, described transducer comprises a plurality of current-voltage transformers and temperature sensor.
Further, also comprise precaution device, the fault weight grade that is used for storing according to described fault judgement device is sent early warning signal, and to far-end transmission early warning data.
(3) beneficial effect
The beneficial effects of the utility model are:
By device of the present utility model, can detect the unusual or fault of high-frequency switching power supply module in the mode of online detection, automatically the module of fixing a breakdown, record trouble working point state, particularly can write down the unusual and stealthy fault of instantaneous appearance, make early warning, improved the safe timeliness of Switching Power Supply thus and reduced maintenance workload;
Transducer of the present utility model is except the electric weight of the input and output of sense switch power supply, also increased the temperature detection of counterweight dot circuit unit, the operating state that more fully reflects module, make early warning with easy-to-look-up quality incipient fault and record, avoided inefficient and had the module of stealthy fault to put into operation, brought great convenience to maintenance work.
Device of the present utility model has utilized the different operating mode of high-frequency switching power supply module fully, online in the absolute majority time with the minority module, the mode of most module off-lines, avoided round thunderbolt to make the problem of Switching Power Supply paralysis, and can excise malfunctioning module automatically, and drop into good off-line module, the function of the life cycle of energy efficiency, prolongation switch power module is arranged, reduce the attendant and must arrive the cycle of on-site maintenance, improved the fail safe of power supply.
Description of drawings
Fig. 1 is the structural representation according to high frequency switch power intelligent online detection optimizing management control device of the present utility model.
Embodiment
The high frequency switch power intelligent online detection optimizing management control device that the utility model proposes is described as follows in conjunction with the accompanying drawings and embodiments.
As shown in Figure 1, the high frequency switch power intelligent online detection optimizing management control device of present embodiment comprises:
Transducer comprises a plurality of current-voltage transformers and temperature sensor, is used to gather characteristic value a plurality of switch power modules, that characterize its operating state separately; The alternating current flow valuve, the ac voltage that comprise input, the DC current values of output, dc voltage value, and the temperature value of emphasis circuit power unit.
Data processor, the signal that sensor unit is collected amplifies and Filtering Processing; In the specific implementation process, can finish by circuit such as LM258 operational amplifiers.
Analog to digital converter carries out obtaining after the analog-to-digital conversion characteristic value data of described a plurality of power modules to the signal of described signal processing unit output; Particularly, can adopt the analog-to-digital conversion of the A/D end execution acquired signal of MSP430 single-chip microcomputer;
Data storage is deposited in the feature queue table of memory after the data process digital filter filtering after the conversion, and the data of described storage comprise real-time detected characteristics Value Data and historical detected characteristics Value Data; M fault judgement character subset and N performance judging characteristic subclass have been stored in the above-mentioned feature queue table;
The fault judgement device is used for trouble power module and fault weight grade thereof that characteristic value data and fault judgement character subset are discerned, the record needs withdraw from according to data storage; Wherein, described fault judgement character subset comprise the characterization module fault type sign and with the corresponding characteristic value of this fault type, for example, it is unusual that the current anomaly fault can be divided into control impuls, control impuls disappears, the power device open circuit, and power device is aging, fan trouble, the power device short circuit; Real-time and history feature Value Data and a plurality of judgement subclass according to each switch power module operating state of above-mentioned sign, the characteristic value data of each module and the fault signature value in the described fault judgement character subset are searched for generally contrast respectively, comparing result is characterized the malfunctioning module have a strong impact on power work to be identified as and need to withdraw from module, for example overvoltage module, cross flow module, stealthy malfunctioning module and condition of instant error and be accumulated to a certain degree abnormal module etc., and with it according to the ranking of fault level weight;
In addition, the frequency of the sign condition of instant error operating state that occurs in the signal that data storage also writes down transducer and collected, when described frequency reached certain threshold value, the power module that the fault judgement device is also corresponding with it was designated the module that need withdraw from;
The performance sorting unit is used for described characteristic value data and performance judging characteristic subclass according to data storage, and the fault weight grade of described fault judgement device record, and described a plurality of power modules are carried out the quality ordering; Wherein, performance judging characteristic subclass comprise the good and bad degree of characterization module performance sign and with the corresponding characteristic value of this performance, for example voltage of the input voltage that under a certain operating mode, collects, electric current, output, electric current and temperature value; The history feature Value Data and the performance judging characteristic subclass of each module are blured contrast respectively, and its performance of general survey is also carried out the rank sign, and the performance class sign to a plurality of modules vertically contrasts simultaneously, realizes good and bad ordering;
The module selector, selecting the higher power module of ranking according to the ranking results of performance sorting unit as required is the replacement module of malfunctioning module; The module of selecting to have in the above-mentioned performance ranking results the highest or more forward ranking is a replacement module to be dropped into;
Controller comprises switching circuit and drives executive circuit, close with the corresponding switch of trouble power module of described fault judgement device record so that its off-line, and unlatching and the corresponding switch of the selected replacement module of described module selector is so that it is online.
In addition, described high frequency switch power intelligent online detection optimizing management control device can also comprise I and display, comprises input tool (as keyboard), show tools (as liquid crystal display screen) and serial communication instrument (as RS-232 serial output communication circuit); Be used for instruction, parameter according to repair and maintenance personnel input, by figure, Chinese character, the mode display abnormality of curve or the running status of malfunctioning module, electrical measurement state, temperature survey state are with maintenance and the troubleshooting of faults that maintains easily the staff.
Detection that below will be by concrete fault is explained in further detail the device of present embodiment.
When the device fault of Switching Power Supply or power device are aging, the current signal meeting deviation that the sensor acquisition of this module arrives is bigger, promptly, though the current-sharing signal is arranged, but when signal still has than large deviation, the fault judgement device is by the vertical contrast to historical operational data in the memory, and the horizontal contrast of characteristic between each module, to have with M kind malfunction in the module records of the corresponding characteristic value data of corresponding state be malfunctioning module, and by controller this module is withdrawed from, drop into simultaneously have the highest ranking in the feature queue table module to replace this malfunctioning module.
If have an overvoltage module in the switch power module that drops into, can cause all module overvoltage protections.The fault judgement device is handled the characteristic value signal of sensor unit collection and is judged when wherein comprising the characteristic that characterizes the overvoltage module, controller will drop into a module in proper order by turns by the length of module running time, withdrawing from the mode of another module again operates, up to finding this overvoltage module by searching for comparative approach generally, and demarcate the characteristic of this module and the corresponding value of corresponding state in the M kind state, write down this module and it is withdrawed from; After supply voltage recovered normally, this module of controller lock can not put it automatically into operation, and sends the maintenance signal, and malfunction indicator lamp is flashed, and sent the maintenance instruction by port to far-end.
If the power device of switch power module damages, the identification of fault judgement device, write down this module after, controller will directly withdraw from and lock this module must not drop into it once more; If the fault judgement device judges that by searching for comparative approach generally it is to shut down fault or the unusual fault of driving pulse that causes because of power device quality factor fault or fan; demarcate the characteristic of this module and the corresponding value of corresponding state in the M kind state, enter the formation afterbody and make the early warning record according to its fault power.At this moment, this module can only be done standby.
If sensor acquisition to signal show when Switching Power Supply and be operated in efficiency curve more than 80% and output current again can not increase the time, the fault judgement device is by after searching for comparison generally, determine fault flag, drop into the most forward module of performance ranking in the formation by controller, and withdraw from this malfunctioning module, it is entered the formation afterbody and make the early warning record according to the fault weight.
In addition, the output abnormality of a lot of moments appearance is arranged, the attendant can't learn that data storage also can be noted it, notes the signal of each measurement point simultaneously, and its frequency of occurrences of accumulative total, sends early warning signal, to help safeguarding that the people searches failure cause.When the record of data storage showed that frequency that condition of instant error appears in a certain module is accumulated to some, the fault judgement device was discerned its module for withdrawing from, and by controller this module is withdrawed from, and enters the afterbody of Switching Power Supply set of queues.
In specific implementation process, the fault judgement device can write down unusual worker's shape of high-frequency switching power supply module and differentiate, the sign fault level, to maintain easily the people finder fault point; By the needs of operating mode, the mode less investment digital-to-analogue piece with energy-efficient withdraws from most modules, guarantees that the module that drops into is optimum module in the formation (module that ranking is forward), has increased the electronics life cycle of switch power module simultaneously; Controller replaces the attendant to excise the module that has a strong impact on power supply stable operation automatically according to the judged result of fault judgement device, selection result according to the module selector drops into the module of off-line operation and locks the switch power module of fault, prevents that misoperation from endangering whole power-supply system; After communication base station is subjected to thunder and lightning attack damage, excise malfunctioning module automatically, drop into good off-line module (off-line module often can be not under attack), guarantee that power-supply system is not paralysed.
Above execution mode only is used to illustrate the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (5)
1. a high frequency switch power intelligent online detection optimizing management control device is characterized in that, comprising:
Transducer is used to gather characteristic signal a plurality of switch power modules, that characterize its operating state separately;
Data processor amplifies and Filtering Processing described characteristic signal;
Analog to digital converter carries out obtaining after the analog-to-digital conversion characteristic value data of described a plurality of power modules to the signal of described data processor output;
Data storage, the characteristic value data after the storage conversion, and a plurality of fault judgement character subset and performance judging characteristic subclass;
The fault judgement device reads characteristic value data and fault judgement character subset in the described data storage, trouble power module id that storage need be withdrawed from and fault weight grade thereof;
The performance sorting unit reads described characteristic value data and performance judging characteristic subclass in the described data storage, and reads the fault weight grade of storing in the described fault judgement device, and stores the good and bad ranking results of described a plurality of power modules;
The module selector reads the good and bad ranking results of described performance sorting unit, and the higher power module of storage ranking is as the replacement module of malfunctioning module;
Controller, close with described fault judgement device in the corresponding switch of trouble power module stored so that its off-line, and the corresponding switch of replacement module that unlatching and described module selector are stored is so that it is online.
2. high frequency switch power intelligent online detection optimizing management control device as claimed in claim 1 is characterized in that, also comprises:
Maintainer's operator, comprise that keyboard, display screen and far-end transmit serial communication circuit, be used for the repair and maintenance personnel to described data storage input instruction, parameter, and the operating state, electrical measurement state, the temperature survey state that show each module according to described instruction.
3. high frequency switch power intelligent online detection optimizing management control device as claimed in claim 1, it is characterized in that, the frequency of condition of instant error operating state also appears characterizing in the recording feature value signal in described data storage, when described frequency reached certain threshold value, the power module that described fault judgement device is corresponding with it was stored as malfunctioning module.
4. high frequency switch power intelligent online detection optimizing management control device as claimed in claim 1 is characterized in that described transducer comprises a plurality of current-voltage transformers and temperature sensor.
5. high frequency switch power intelligent online detection optimizing management control device as claimed in claim 1, it is characterized in that, also comprise precaution device, the fault weight grade that is used for storing according to described fault judgement device is sent early warning signal, and to far-end transmission early warning data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201146648U CN201893605U (en) | 2010-02-03 | 2010-02-03 | Intelligent on-line testing and optimal management control device of high-frequency switch power supply |
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| CN2010201146648U CN201893605U (en) | 2010-02-03 | 2010-02-03 | Intelligent on-line testing and optimal management control device of high-frequency switch power supply |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783578B (en) * | 2010-02-03 | 2012-07-25 | 北京奥福瑞科技有限公司 | Intelligent online detection optimizing management control method of high-frequency switch power supply, and device thereof |
| CN103869261A (en) * | 2012-12-12 | 2014-06-18 | 北京普源精电科技有限公司 | Power supply with analysis function |
| CN105068021A (en) * | 2015-09-02 | 2015-11-18 | 北京航天发射技术研究所 | Switching mode power supply offline fault detection device and system |
| CN105182249A (en) * | 2015-08-09 | 2015-12-23 | 安徽普为智能科技有限责任公司 | Fault diagnosis method of high-power switching power supply |
| CN105321039A (en) * | 2015-09-24 | 2016-02-10 | 国家电网公司 | Disconnector online monitoring data management system and method |
| CN105988099A (en) * | 2015-02-15 | 2016-10-05 | 中车青岛四方机车车辆股份有限公司 | Diagnosis method and device for electronic voltage transformer |
| CN110221229A (en) * | 2019-06-10 | 2019-09-10 | 深圳市风云实业有限公司 | Power-supply management system, power supply system and method for controlling power supply |
| CN113514774A (en) * | 2021-08-09 | 2021-10-19 | 珠海万力达电气自动化有限公司 | Method and device for judging unstable operation of railway interconnected power supply |
| CN113740759A (en) * | 2021-09-08 | 2021-12-03 | 上海地铁维护保障有限公司 | Switching power supply performance testing device |
| CN115061061A (en) * | 2022-08-18 | 2022-09-16 | 中国铁塔股份有限公司云南省分公司 | Method and device for prejudging abnormal state of wireless station switch power supply |
-
2010
- 2010-02-03 CN CN2010201146648U patent/CN201893605U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783578B (en) * | 2010-02-03 | 2012-07-25 | 北京奥福瑞科技有限公司 | Intelligent online detection optimizing management control method of high-frequency switch power supply, and device thereof |
| CN103869261A (en) * | 2012-12-12 | 2014-06-18 | 北京普源精电科技有限公司 | Power supply with analysis function |
| CN105988099A (en) * | 2015-02-15 | 2016-10-05 | 中车青岛四方机车车辆股份有限公司 | Diagnosis method and device for electronic voltage transformer |
| CN105988099B (en) * | 2015-02-15 | 2019-08-27 | 中车青岛四方机车车辆股份有限公司 | The diagnostic method and equipment of electronic type voltage transformer |
| CN105182249A (en) * | 2015-08-09 | 2015-12-23 | 安徽普为智能科技有限责任公司 | Fault diagnosis method of high-power switching power supply |
| CN105068021A (en) * | 2015-09-02 | 2015-11-18 | 北京航天发射技术研究所 | Switching mode power supply offline fault detection device and system |
| CN105321039A (en) * | 2015-09-24 | 2016-02-10 | 国家电网公司 | Disconnector online monitoring data management system and method |
| CN105321039B (en) * | 2015-09-24 | 2022-03-01 | 国家电网公司 | Online monitoring data management system and method for isolating switch |
| CN110221229A (en) * | 2019-06-10 | 2019-09-10 | 深圳市风云实业有限公司 | Power-supply management system, power supply system and method for controlling power supply |
| CN113514774A (en) * | 2021-08-09 | 2021-10-19 | 珠海万力达电气自动化有限公司 | Method and device for judging unstable operation of railway interconnected power supply |
| CN113740759A (en) * | 2021-09-08 | 2021-12-03 | 上海地铁维护保障有限公司 | Switching power supply performance testing device |
| CN115061061A (en) * | 2022-08-18 | 2022-09-16 | 中国铁塔股份有限公司云南省分公司 | Method and device for prejudging abnormal state of wireless station switch power supply |
| CN115061061B (en) * | 2022-08-18 | 2022-11-01 | 中国铁塔股份有限公司云南省分公司 | Method and device for prejudging abnormal state of wireless station switch power supply |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110706 Effective date of abandoning: 20120725 |