CN102545389B - Anti-error lock remote permission device for power substation - Google Patents
Anti-error lock remote permission device for power substation Download PDFInfo
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- CN102545389B CN102545389B CN201210068203.5A CN201210068203A CN102545389B CN 102545389 B CN102545389 B CN 102545389B CN 201210068203 A CN201210068203 A CN 201210068203A CN 102545389 B CN102545389 B CN 102545389B
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- module
- radio frequency
- lockset
- arm processor
- electronic label
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- 238000004891 communication Methods 0.000 claims abstract description 24
- 239000007769 metal material Substances 0.000 claims description 8
- 238000013475 authorization Methods 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04S10/16—Electric power substations
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- Lock And Its Accessories (AREA)
Abstract
The invention relates to an anti-error lock remote permission device for a power substation. The device comprises locks in the power substation and a computer key for unlocking the locks, wherein the locks are attached by corresponding radio frequency identification electronic tags which are provided with independent lock codes respectively; the computer key comprises a battery, an automatic route management (ARM) processor which is used for identifying, comparing and controlling input signals, a card reading module, a real-time clock module, a liquid crystal display (LCD) module, an information storage module, a communication module and a locking driving module; the card reading module communicates with the radio frequency identification electronic tags through a radio frequency antenna; the communication module which is connected to the communication port of the ARM processor is connected with an upper computer; and the LCD module, the information storage module, the real-time lock module and the locking driving module are connected with the input and output ports of the ARM respectively. The anti-error lock remote permission device for the power substation has a rational structure and is convenient to operate, and safety and reliability can be improved.
Description
Technical field
The present invention relates to the distant place approval apparatus of a kind of electric substation anti-error lock, belong to the anti-computer lock technical field of electric substation five.
Background technology
Along with electrical network develop rapidly, in electric substation, equipment rolls up, although can help operation, maintainer to differentiate identification various device by marking dual title, mistakenly entering charged chamber, misoperation grid equipment still happen occasionally.
In order to avoid more reliably the generation of these accidents, adopt at present the anti-misoperation locking mode of " observing and controlling interlocking+electrical interlock ".But the operating handle for all kinds of mechanism cases, terminal chamber door and manual handling equipment in electric substation also fails to adopt effective anti-misoperation locking technological means.
Although five anti-computer locks can effectively have been avoided the generation of equipment misoperation accident, for lockset, management is to adopt 10 codings, therefore only has 1024 kinds of permutation and combination, therefore there are at present two drawbacks: 1, number of devices in electric substation is placed restrictions on to some extent.In Dang Yige electric substation, number of devices surpasses 1024, and lockset coding will duplicate, and to handling safety, brings great potential safety hazard; 2, only Neng Duiyige electric substation controls.Owing to can only Dui Yige electric substation controlling, therefore cause the distinct device of different electric substations to produce the same coding of looks.If batch sex works such as maintainer will make an inspection tour successively in a plurality of electric substations, defect eliminations, operations staff must follow maintainer always, carries out at the scene the license of computer key, greatly wastes operations staff's time and efforts.
Summary of the invention
The object of this invention is to provide a kind of rational in infrastructurely, easy to operate, can improve the distant place approval apparatus of electric substation's anti-error lock of security reliability.
The present invention is that the technical scheme achieving the above object is: the distant place approval apparatus of a kind of electric substation anti-error lock, comprise each lockset in electric substation and for opening the computer key of each lockset, it is characterized in that: on described each lockset, be attached with each self-corresponding radio frequency recognizing electronic label, and each radio frequency recognizing electronic label has independent separately lockset coding, described computer key comprises for the battery of working power is provided, for the arm processor to input signal identification contrast and control, card reading module for lockset coding on reading electronic labels, real-time clock module, LCD display module, information storage module, communication module and latch actuation module, battery respectively with card reading module, real-time clock module, LCD display module, information storage module, communication module is connected with latch actuation module, card reading module is by radio-frequency antenna and radio frequency recognizing electronic label communication, the communication module being connected in arm processor PORT COM is connected with host computer, LCD display module, information storage module, real-time clock module is connected with the input/output end port of arm processor respectively with latch actuation module.
A distant place of the present invention approval apparatus adopts radio-frequency technique, on each lockset, be attached with each self-corresponding radio frequency recognizing electronic label, make each radio frequency recognizing electronic label there is independent separately lockset coding, and computer key comprises arm processor, card reading module, real-time clock module, LCD display module, information storage module, communication module and latch actuation module, by card reading module, reading the lockset of unique establishment on radio frequency recognizing electronic label encodes, and arm processor is connected with host computer by communication module, can be by the host computer information of unblanking that secures permission, make information storage module storage obtain permitting the information of unblanking, permit the information exchange of unblanking to cross the instant playback of LCD display module simultaneously, the lockset coded message that arm processor is unblanked the license of acquisition on information and radio frequency recognizing electronic label is compared and is judged that the License Info of unblanking is no effectively, only when the License Info of unblanking is effective, arm processor input control signal makes the work of latch actuation module, utilize the mechanical latching of lockset realize equipment release and unblank, five anti-locksets are carried out to release.Information storage module of the present invention can record key message and the power down information such as uncaging time, release personnel and license personnel of each step of permitting the information of unblanking, and is shown in real time and is permitted the information of unblanking simultaneously by LCD display module, conveniently reminds and reviews.The present invention adopts radio frequency recognizing electronic label, lockset coding is set up unique corresponding relation with lockset actual installation position, unique coding in realizing on a large scale by coded electronicization, solved lockset coding and repeated to bring great potential safety hazard to handling safety, realized and can to arbitrary equipment in electric substation, carry out the license of key decoding in the distance simultaneously.Perfect in shape and function of the present invention, extensibility is strong, can allow operations staff carry out distant place license, allow to open certain anti-error lock of certain electric substation, or allow to open many groups anti-error lock of a plurality of electric substations, guaranteeing on safe and punctual basis, to alleviate operations staff's labor intensity, perfect in shape and function, security reliability is good, and integrated level is high, meets on-the-spot user demand.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
The structured flowchart of the distant place approval apparatus of Tu1Wei electric substation of the present invention anti-error lock.
Fig. 2 is the structured flowchart of computer key of the present invention.
Embodiment
See Fig. 1, shown in 2, the distant place approval apparatus of electric substation of the present invention anti-error lock, comprise each lockset in electric substation and for opening the computer key of each lockset, on each lockset of the present invention, be attached with each self-corresponding radio frequency recognizing electronic label, and each radio frequency recognizing electronic label has independent separately lockset coding, radio frequency recognizing electronic label of the present invention comprises the crystal rubber layer being packaged as a whole, anti-metal material layer, radio-frequency antenna and radio frequency chip, rubber layer is fixed on anti-metal material layer one side, radio-frequency antenna and radio frequency chip are fixed on the opposite side of anti-metal material layer, this anti-metal material layer adopts magnetic cloth, to guarantee accurately reading of data, Card Reader distance between computer key of the present invention and radio frequency recognizing electronic label is less than 0.05m, radio frequency recognizing electronic label can be selected the radio-frequency (RF) identification chip of 915MHz, the large I of apparent size of the radio-frequency (RF) identification chip of electronic tag has size to make according to lockset, owing to adopting anti-metal material layer, data identification performance is good, being suitable for use in large-scale open air power device patrols and examines, large-scale steel tower electric pole is patrolled and examined, big-and-middle-sized elevator is patrolled and examined, shop equipment management, circuit inspection, metal bridges quality inspection, tunnel inspection, machine identification, vehicle license, metal container management, the aspects such as various electric power housed devices, solve radio frequency recognizing electronic label and can not be attached to the difficult problem that metal surface is used, realize equipment interior large quantity and unduplicated lockset coding on a large scale.
See Fig. 1, shown in 2, computer key of the present invention comprises for the battery of working power is provided, for the arm processor to input signal identification contrast and control, card reading module for the lockset coding on reading electronic labels, real-time clock module, LCD display module, information storage module, communication module and latch actuation module, as shown in Figure 2, battery of the present invention respectively with card reading module, real-time clock module, LCD display module, information storage module, communication module is connected with latch actuation module, by battery, working power is provided to each module, this battery can adopt rechargeable lithium battary, after passing into civil power, can charge voluntarily, and lithium battery has long service life, lightweight, and can be at-20 ℃--under the environment of 60 ℃, use, high low temperature strong adaptability.See Fig. 1, shown in 2, card reading module of the present invention is by radio-frequency antenna and radio frequency recognizing electronic label communication, the lockset that obtains radio frequency recognizing electronic label by card reading module is encoded, lockset coded message is transferred in arm processor, the communication module being connected in arm processor PORT COM is connected with host computer, this communication module can adopt channel radio to cross module or wire communication module, the lockset coding that empowerment management software in host computer and server is stored is unique corresponding relation with each equipment lockset, empowerment management software can be added up and safeguard the lockset coding of converting equipment simultaneously, when unblanking to decode, transmission also can set up the safety criterion of lockset coding, to determine this lockset, whether can open, when staff sends to the operations staff in a distant place demand of unblanking by computer key, after operations staff examines service work, carrying out of agreement work, and by the required lockset coding of unblanking of correspondence, the license information of unblanking of lockset decoding and safety criterion is transferred to arm processor from server and host computer, by arm processor, the lockset coding of the radio frequency recognizing electronic label of reading is contrasted with the license information of unblanking receiving, and judge that whether the license information of unblanking is effective, therefore can avoid opening by mistake, touch on the basis of operational outfit by mistake and reduce repetitive operation, improve operations staff's operating efficiency and security reliability.LCD display module of the present invention, information storage module, real-time clock module is connected with the input/output end port of arm processor respectively with latch actuation module, real-time clock module can provide second to computer key, minute, time, day, week, the information such as Month And Year, LCD display module can show that authorization information and license unblank time of each step in process in time, the information such as unlock staff and license personnel, and information storage module can be stored the license information of unblanking that obtains, only have when arm processor comparison authorization information is effective, control latch actuation module output unlocking signal, now by the mechanical lock of manual operation lockset, realize the release of lockset and unblank, computer key of the present invention is portable equipment, facilitate staff to carry and operate.
Card reading module of the present invention is ultrahigh frequency radio frequency identification (RFID) reader, as RMU900+ module, this RMU900+ module is subminiaturized UHF rfid interrogator core component, the integrated parts such as PLL, transmitting, reception, RF-coupled device and MCU in the inside, user only need to provide power supply and communication interface by api function storehouse control module, to work easily on the basis of module, RMU900+ module is operated in low-voltage+3.3V, is applicable to hand-held set User Exploitation.
Arm processor of the present invention adopts ARM9 processor or ARM7 processor, is also provided with serial interface on this arm processor, by serial interface, connects local USB interface, realizes local data and reads.Arm processor of the present invention is as adopted the LPC2220 microprocessor of Phillips, LPC2220 microcontroller is one and supports real-time simulation and embed 32/16 the ARM7TDMI-S CPU following the tracks of, 144 pin encapsulation, extremely low power consumption, a plurality of 32 bit timing devices, 10,8 tunnel ADC, PWM export and reach 9 external interrupt pins makes them be specially adapted to Industry Control, by low power dissipation design, computer key standby for a long time, can wake up by button.
See shown in Fig. 1,2, when the distant place approval apparatus of electric substation of the present invention anti-error lock is worked, when maintainer needs release, computer key is connected with host computer by communication module, on simulation five anti-figure, click the equipment that need unblank, to the operations staff in a distant place, send the demand information of unblanking.Operations staff receives after the demand information of unblanking after service work audit, carrying out of agreement work, and lockset is encoded, the license of lockset decoding and the safety criterion information exchange of unblanking is crossed host computer and is transferred to computer key, information storage module records the time in each step of permitting in an anti-error lock distant place, staff and license personal information, computer key is inserted in lockset, then control card reading module and read lockset coded message, reading information is by the instant playback of LCD module, computer key contrasts the lockset encoding ratio of reading to authorization information, if authorization information is effectively exported control signal, make latch actuation module output unlocking signal and five anti-locksets are carried out to release, operator now can press unlock button, lockset release is also opened, information storage module records unblank information and the power down information such as uncaging time and unlock staff, the present invention also can connect local USB interface by serial interface, realizing local data reads.
Claims (4)
- The distant place approval apparatus of 1.Yi Zhong electric substation anti-error lock, comprise each lockset in electric substation and for opening the computer key of each lockset, it is characterized in that: on described each lockset, be attached with each self-corresponding radio frequency recognizing electronic label, and each radio frequency recognizing electronic label has independent separately lockset coding, described computer key comprises for the battery of working power is provided, for the arm processor to input signal identification contrast and control, card reading module for lockset coding on reading electronic labels, real-time clock module, LCD display module, information storage module, communication module and latch actuation module, battery respectively with card reading module, real-time clock module, LCD display module, information storage module, communication module is connected with latch actuation module, card reading module is by radio-frequency antenna and radio frequency recognizing electronic label communication, the communication module being connected in arm processor PORT COM is connected with host computer, LCD display module, information storage module, real-time clock module is connected with the input/output end port of arm processor respectively with latch actuation module,When the distant place approval apparatus of described electric substation anti-error lock is worked, card reading module is by radio-frequency antenna and radio frequency recognizing electronic label communication, by card reading module, obtain the lockset coded message of radio frequency recognizing electronic label, and lockset coded message is transferred in arm processor, the communication module being connected in arm processor PORT COM is connected with host computer; Host computer is unblanked communication to after on arm processor by license, arm processor contrasts the lockset coded message of the radio frequency recognizing electronic label of reading and the license the receiving information of unblanking, and judge that whether the license information of unblanking is effective, if authorization information is effectively exported control signal, make latch actuation module output unlocking signal and five anti-locksets are carried out to release.
- 2. the distant place approval apparatus of electric substation according to claim 1 anti-error lock, is characterized in that: described card reading module is super high frequency radio frequency recognition read-write machine.
- 3. the distant place approval apparatus of electric substation according to claim 1 anti-error lock, it is characterized in that: described radio frequency recognizing electronic label comprises the crystal rubber layer being packaged as a whole, anti-metal material layer, radio-frequency antenna and radio frequency chip, rubber layer is fixed on anti-metal material layer one side, radio-frequency antenna and radio frequency chip are fixed on the opposite side of anti-metal material layer, and the distance of the Card Reader between computer key and radio frequency recognizing electronic label is less than 0.05m.
- 4. the distant place approval apparatus of electric substation according to claim 1 anti-error lock, is characterized in that: described arm processor adopts ARM9 processor or ARM7 processor, and on arm processor, is also provided with serial interface.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410566124.6A CN104318651B (en) | 2012-03-15 | 2012-03-15 | A kind of approval apparatus of electric substation anti-error lock |
| CN201410568147.0A CN104283317B (en) | 2012-03-15 | 2012-03-15 | The distant place approval apparatus of electric substation's anti-error lock |
| CN201210068203.5A CN102545389B (en) | 2012-03-15 | 2012-03-15 | Anti-error lock remote permission device for power substation |
| CN201410568837.6A CN104269933B (en) | 2012-03-15 | 2012-03-15 | A kind of distant place approval apparatus of electric substation anti-error lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210068203.5A CN102545389B (en) | 2012-03-15 | 2012-03-15 | Anti-error lock remote permission device for power substation |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410568147.0A Division CN104283317B (en) | 2012-03-15 | 2012-03-15 | The distant place approval apparatus of electric substation's anti-error lock |
| CN201410568837.6A Division CN104269933B (en) | 2012-03-15 | 2012-03-15 | A kind of distant place approval apparatus of electric substation anti-error lock |
| CN201410566858.4A Division CN104282068A (en) | 2012-03-15 | 2012-03-15 | Permission device for error prevention locks of substation |
| CN201410566124.6A Division CN104318651B (en) | 2012-03-15 | 2012-03-15 | A kind of approval apparatus of electric substation anti-error lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102545389A CN102545389A (en) | 2012-07-04 |
| CN102545389B true CN102545389B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210068203.5A Active CN102545389B (en) | 2012-03-15 | 2012-03-15 | Anti-error lock remote permission device for power substation |
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| Country | Link |
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| CN (1) | CN102545389B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778696B (en) * | 2013-12-31 | 2016-05-11 | 长园共创电力安全技术股份有限公司 | For preventing the system and method for misoperation of electrical equipment |
| CN104183046A (en) * | 2014-08-28 | 2014-12-03 | 国家电网公司 | RFID based universal unlocking system and method applied to transformer substation five-prevention lockout |
| CN104281136B (en) * | 2014-10-10 | 2017-01-18 | 国家电网公司 | Five-prevention lock intelligent navigation control system for transformer substation |
| CN105574958B (en) * | 2014-10-14 | 2018-11-23 | 珠海优特电力科技股份有限公司 | Computer key |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6177872B1 (en) * | 1998-03-13 | 2001-01-23 | Intermec Ip Corp. | Distributed impedance matching circuit for high reflection coefficient load |
| CN2837459Y (en) * | 2005-11-07 | 2006-11-15 | 珠海市共创有限公司 | Unlocking key management device |
| CN101271786A (en) * | 2008-05-05 | 2008-09-24 | 珠海市共创有限公司 | System for microcomputer on-line preventing electrical misoperation |
| CN202058189U (en) * | 2011-05-26 | 2011-11-30 | 西安阿法迪信息技术有限公司 | Anti-metal electronic tag |
| CN202503369U (en) * | 2012-03-15 | 2012-10-24 | 江苏省电力公司常州供电公司 | Transformer substation anti-error lockset distant permission device based on RFID technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201891311U (en) * | 2010-07-13 | 2011-07-06 | 珠海共创电力安全技术股份有限公司 | Magnetically controlled computer key |
-
2012
- 2012-03-15 CN CN201210068203.5A patent/CN102545389B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6177872B1 (en) * | 1998-03-13 | 2001-01-23 | Intermec Ip Corp. | Distributed impedance matching circuit for high reflection coefficient load |
| CN2837459Y (en) * | 2005-11-07 | 2006-11-15 | 珠海市共创有限公司 | Unlocking key management device |
| CN101271786A (en) * | 2008-05-05 | 2008-09-24 | 珠海市共创有限公司 | System for microcomputer on-line preventing electrical misoperation |
| CN202058189U (en) * | 2011-05-26 | 2011-11-30 | 西安阿法迪信息技术有限公司 | Anti-metal electronic tag |
| CN202503369U (en) * | 2012-03-15 | 2012-10-24 | 江苏省电力公司常州供电公司 | Transformer substation anti-error lockset distant permission device based on RFID technology |
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| CN102545389A (en) | 2012-07-04 |
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| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20121023 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20121023 Address after: 213003 Jiangsu province Changzhou City Tianning District Bureau Street No. 27 Applicant after: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. Applicant after: Jiangsu Electric Power Company Applicant after: State Grid Corporation of China Address before: 213003 Jiangsu province Changzhou City Tianning District Bureau Street No. 27 Applicant before: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. |
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