CN105136205B - It is provided with the high voltage generating station cable detecting device of rotating speed detector - Google Patents
It is provided with the high voltage generating station cable detecting device of rotating speed detector Download PDFInfo
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- CN105136205B CN105136205B CN201510595146.XA CN201510595146A CN105136205B CN 105136205 B CN105136205 B CN 105136205B CN 201510595146 A CN201510595146 A CN 201510595146A CN 105136205 B CN105136205 B CN 105136205B
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- 238000001514 detection method Methods 0.000 claims abstract description 34
- 230000005684 electric field Effects 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims description 39
- 238000010168 coupling process Methods 0.000 claims description 39
- 238000005859 coupling reaction Methods 0.000 claims description 39
- 238000004891 communication Methods 0.000 claims description 25
- 239000000758 substrate Substances 0.000 claims description 19
- 238000002955 isolation Methods 0.000 claims description 17
- 238000007373 indentation Methods 0.000 claims description 4
- 230000003071 parasitic effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000024241 parasitism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The invention discloses a kind of high voltage generating station cable detecting device being provided with rotating speed detector, include disc base, described disc base is provided with boss, described boss is provided with motor, the clutch end of described motor is provided with detection platform, described detection platform end face is provided with multiple test sides that the arc length such as a circle are arranged, and is provided with circuit and shelves post in the middle of described detection platform, and described circuit is shelved column top and is provided with antenna box；Every detector also can rotate with and detect, the accuracy of detection and comprehensive so can be effectively ensured, heat source temperature detector is for detecting its temperature anomaly rising condition to prevent danger on fire, electric field intensity detector is used for detecting electric field intensity change, the voltage caused during short circuit strengthens so that it can be relatively easy to detection temporarily, it addition, the high electrical property of antenna, provide powerful guarantee for this device detection accuracy.
Description
Technical field
The present invention relates to a kind of high voltage generating station cable detecting device being provided with rotating speed detector.
Background technology
Power cable and transformer station play an important role in distribution network construction, and its monitoring direct relation reliability and the power supply quality of power supply.Cable run supervising device includes line information detection device and data acquisition unit, detection device directly contacts with cable, detect the analogue signal amounts such as the electric current in cable, voltage, then monitoring information is sent to harvester by wired or wireless data communication by digital encoding scheme by detection device CPU, and harvester CPU obtains the information such as the electric current in cable, voltage by decoding.Generally, harvester can be divided into two kinds with the data communication of detection device according to communication mode: wire communication mode and communication；Wherein, wireless mode is easily affected by site environment, as on-the-spot signal disturbing, communication signal easily by shielding etc.；Detection key element on power cable and transformer station is a lot, when temperature is too high, needs detector prevention of problem fire to occur；There is excellent radio communication the most again, because being previously mentioned wireless mode easily to be affected by site environment, as on-the-spot signal disturbing, communication signal easily by shielding etc., but also it is easily subject to the interference of electric field, therefore the antenna set in needs have preferable antenna performance, anti-shielding is the most anti-interference, and directivity also to be got well.
Summary of the invention
It is an object of the invention to overcome disadvantages described above, it is provided that a kind of high voltage generating station cable detecting device being provided with rotating speed detector.
For achieving the above object, the concrete scheme of the present invention is as follows: a kind of high voltage generating station cable detecting device being provided with rotating speed detector, include disc base, described disc base is provided with boss, described boss is provided with motor, and the clutch end of described motor is provided with detection platform, and described detection platform end face is provided with multiple test sides that the arc length such as a circle are arranged, being provided with circuit in the middle of described detection platform and shelve post, described circuit is shelved column top and is provided with antenna box；Also include heat source temperature detector and electric field intensity detector；Described heat source temperature detector and electric field intensity detector are respectively arranged in test side；Also include processor, alarm device, communicator；Described heat source temperature detector, electric field intensity detector, alarm device, communicator are connected with processor signal respectively；Described communicator includes communication antenna, and described communication antenna is located in antenna box.
Wherein, described communication antenna includes circular PCB substrate and the micro-strip oscillator being located in PCB substrate；Described micro-strip oscillator includes laterally zygomorphic two groups of microstrip elements, and often group microstrip element includes two symmetrical micro-strip oscillators；Described each micro-strip oscillator includes the 6th antenna arm that the first antenna arm third antenna arm parallel with the second antenna arm with the second antenna arm that first antenna arm be arranged in parallel fourth antenna arm parallel with third antenna arm fiveth antenna arm parallel with four antenna arms is parallel with the 5th antenna arm；Described first antenna arm and the 6th antenna arm lateral length are identical, lateral length is first antenna arm 1/3rd of described second antenna arm；The lateral length of described third antenna arm and the 5th antenna arm is identical, lateral length is the 4th oscillator arms 2/3rds of described third antenna arm；Described first antenna arm is equipped with multiple breach to the 6th antenna arm, and the spacing of the breach on each strip antenna arm is 23-28mm；It is provided with one group of coupling arm between described first antenna arm and the 6th antenna arm, it is provided with one group of coupling arm between described first antenna arm and the 4th antenna arm, it is provided with one group of coupling arm between described second antenna arm and third antenna arm, between described 4th antenna arm and the 5th antenna arm, is provided with one group of coupling arm；Described often group coupling arm includes the first coupling bar and the second coupling bar, and described first coupling bar free end is a circular arc, and the second coupling bar free end is concave shape；In described PCB substrate, the side near first antenna arm to the 6th antenna arm is respectively provided with the first power feed hole that respectively respective antenna arm feeds, and the opposite side of described first antenna arm to the 6th antenna arm is respectively equipped with laciniation.
Wherein, circular parasitic oscillator sheet it is provided with between described first antenna arm and third antenna arm.
Wherein, described breach is rectangular indentation.
Wherein, described PCB substrate being additionally provided with the isolation arm of fold-line-shaped, described isolation arm is located at the two ends of two groups of microstrip elements.
Wherein, the described PCB substrate back side is provided with second power feed hole corresponding with power feed hole.Also including the 3rd power feed hole, described 3rd power feed hole is coupled with the second power feed hole feed respectively by feed line.
Wherein, test side quantity is four.
Wherein, between described first coupling bar and the second coupling bar, coupling distance is 0.3mm-1.5mm.
Wherein, described PCB substrate being additionally provided with insulating isolation belt, two groups of two groups of microstrip elements are separated by described insulating isolation belt.
Wherein, also include the rotating speed detector pillar being located on disc base, the free end of described rotating speed detector pillar is not less than described detection platform end face, being provided with the rotating speed detector for detecting described detection platform rotating speed in described rotating speed detector pillar, described rotating speed detector is connected with processor signal；
Wherein, described disc base is magnetic disk understructure, also includes fixture, and described fixture includes magnetic fixed block, and described magnetic fixed block is provided with a U-clamp groove, and described U-clamp groove is provided with fastening screw.
Wherein, described antenna box end face is taper.
The invention have the benefit that every detector also can rotate with to detect, the accuracy of detection and comprehensive so can be effectively ensured, heat source temperature detector is for detecting its temperature anomaly rising condition to prevent danger on fire, electric field intensity detector is used for detecting electric field intensity change, the voltage caused during short circuit strengthens so that it can be relatively easy to detection temporarily, it addition, the high electrical property of antenna, provide powerful guarantee for this device detection accuracy.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the present invention；
Fig. 2 is the left view of the present invention；
Fig. 3 is the axonometric chart of the present invention；
Fig. 4 is the top view of the communication antenna of the present invention；
Fig. 5 is the schematic diagram of the micro-strip oscillator of the present invention；
Fig. 6 is the upward view of the communication antenna of the present invention；
Fig. 7 is the electric property emulation testing figure of the communication antenna of the present invention；
Fig. 8 is the directional pattern of the communication antenna of the present invention；
Description of reference numerals in Fig. 1 to Fig. 8: 1-disc base；2-motor；3-detection platform；4-antenna box；5-test side；6-magnetic fixed block；7-U clevis groove；8-rotating speed detector pillar；9-PCB substrate；
901-isolates arm；902-insulating isolation belt；903-the 3rd power feed hole；904-circle parasitism oscillator sheet；905-breach；91-first antenna arm；92-the second antenna arm；93-third antenna arm；94-the 4th antenna arm；95-the 5th antenna arm；96-the 6th antenna arm；97-the first coupling bar；98-the second coupling bar.
Detailed description of the invention
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not that the practical range of the present invention is confined to this.
As shown in Figures 1 to 8, a kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, include disc base 1, described disc base 1 is provided with boss, described boss is provided with motor 2, and the clutch end of described motor 2 is provided with detection platform 3, and described detection platform 3 end face is provided with multiple test sides 5 that the arc length such as a circle are arranged, being provided with circuit in the middle of described detection platform 3 and shelve post, described circuit is shelved column top and is provided with antenna box 4；Also include heat source temperature detector and electric field intensity detector；Described heat source temperature detector and electric field intensity detector are respectively arranged in test side 5；Also include processor, alarm device, communicator；Described heat source temperature detector, electric field intensity detector, alarm device, communicator are connected with processor signal respectively；Described communicator includes communication antenna, and described communication antenna is located in antenna box 4.Concrete.Motor 2 drives monitoring platform to rotate, therefore, its every detector also can rotate with and detect, the accuracy of detection and comprehensive so can be effectively ensured, wherein, heat source temperature detector is for detecting its temperature anomaly rising condition to prevent danger on fire, and electric field intensity detector is used for detecting electric field intensity change, and the voltage caused during short circuit strengthens so that it can be relatively easy to detection temporarily.Described communication antenna is located in antenna box 4, and antenna box 4 is because towards outward, hence in so that communication antenna can preferably communicate.It addition, multiple test sides 5 removably connect with described detection platform 3, do effectively preparation for being convenient for changing detector later.
Owing to the electric field intensity of transformer station or Exterior cable is bigger, it is therefore desirable to communication antenna possesses wider frequency range and preferable isolation, and directivity optimizes better and better.
Therefore, a kind of high voltage generating station cable detecting device being provided with rotating speed detector described in concrete the present embodiment, described communication antenna includes the PCB substrate 9 of circle and is located at the micro-strip oscillator in PCB substrate 9；Described micro-strip oscillator includes laterally zygomorphic two groups of microstrip elements, and often group microstrip element includes two symmetrical micro-strip oscillators；Described each micro-strip oscillator includes the 6th antenna arm 96 that the first antenna arm 91 third antenna arm 93 parallel with the second antenna arm 92 with the second antenna arm 92 that first antenna arm 91 be arranged in parallel fourth antenna arm 94 parallel with third antenna arm 93 fiveth antenna arm 95 parallel with four antenna arms is parallel with the 5th antenna arm 95；Being parallel to each other, and be disposed in parallel relation to one another, many electric currents of can trying one's best are Downward addition, improve oscillator efficiency.Described first antenna arm 91 is identical with the 6th antenna arm 96 lateral length, lateral length is first antenna arm 91 1/3rd of described second antenna arm 92；Described third antenna arm 93 is identical with the lateral length of the 5th antenna arm 95, lateral length is the 4th oscillator arms 2/3rds of described third antenna arm 93；Described first antenna arm 91 is equipped with multiple breach 905 to the 6th antenna arm 96, and condensance is introduced in it by breach 905, extends current time, increases bandwidth.The spacing of the breach 905 on each strip antenna arm is 23-28mm；It is provided with one group of coupling arm between described first antenna arm 91 and the 6th antenna arm 96, it is provided with one group of coupling arm between described first antenna arm 91 and the 4th antenna arm 94, it is provided with one group of coupling arm between described second antenna arm 92 and third antenna arm 93, between described 4th antenna arm 94 and the 5th antenna arm 95, is provided with one group of coupling arm；Coupling arm ingenious utilize space after also possessed introducing condensance function so that it is bandwidth is higher.Described often group coupling arm includes the first coupling bar 97 and the second coupling bar 98, and described first coupling bar 97 free end is a circular arc, and the second coupling bar 98 free end is concave shape；In described PCB substrate 9, the side near first antenna arm 91 to the 6th antenna arm 96 is respectively provided with the first power feed hole that respectively respective antenna arm feeds, and the opposite side of described first antenna arm 91 to the 6th antenna arm 96 is respectively equipped with laciniation.Designed by the microstrip circuit structure not less than 300 times, and by being not less than under 500 tests and parameter adjustment, finally determining above-mentioned antenna structure, under simulating its Electromagnetic Interference environment, this antenna possesses wider frequency range and preferable isolation and directivity.Concrete actual test result such as following table HFSS15 computed in software its such as Fig. 7 and Fig. 8, from Fig. 7 from the point of view of the port reflection of S3 and S2, its frequency range is the widest, can be from 2.05GHz up to 3.0GHz；Therefore the needs of electric field detecting are fully met, it addition, send it can be seen that its isolation is preferable in S3, in frequency range more than 25.5dB.It addition, as seen from Figure 8, its directivity is fine.It addition, from concrete test, also test result and simulation result are basically identical.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, is provided with circular parasitic oscillator sheet 904 between described first antenna arm 91 and third antenna arm 93.It is arranged such, its low frequency characteristic can be effectively set so that antenna has more preferable adaptability.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, described breach 905 is rectangular indentation 905.Rectangular indentation 905 can more effectively introduce condensance.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, described PCB substrate 9 is additionally provided with the isolation arm 901 of fold-line-shaped, and described isolation arm 901 is located at the two ends of two groups of microstrip elements.Improve isolation.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, described PCB substrate 9 back side is provided with second power feed hole corresponding with power feed hole.Also including the 3rd power feed hole 903, described 3rd power feed hole 903 is coupled with the second power feed hole feed respectively by feed line.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, test side 5 quantity is four.A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, between described first coupling bar 97 and the second coupling bar 98, coupling distance is 0.3mm-1.5mm.Being learnt by experiment and software emulation, this size and structure can improve the impedance operator of oscillator, it is to avoid have reflected current to occur.A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, described PCB substrate 9 is additionally provided with insulating isolation belt 902, and two groups of two groups of microstrip elements are separated by described insulating isolation belt 902.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, also include the rotating speed detector pillar 8 being located on disc base 1, the free end of described rotating speed detector pillar 8 is not less than described detection platform 3 end face, being provided with the rotating speed detector for detecting described detection platform 3 rotating speed in described rotating speed detector pillar 8, described rotating speed detector is connected with processor signal；Rotating speed detector can effectively detect tach signal, provides rotary speed parameter for processor, prevents the error of other detection informations.
Described antenna box end face is taper；Taper is possible to prevent antenna box end face to have rainwater, interference communication.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector described in the present embodiment, described disc base 1 is magnetic disk base 1 structure, also include fixture, described fixture includes magnetic fixed block 6, described magnetic fixed block 6 is provided with a U-clamp groove 7, and described U-clamp groove 7 is provided with fastening screw.Magnetic fixed block 6 and magnetic disk magnetic connect, and this device can be installed in cable or transformer station by U-clamp groove 7 easily.
The above is only a preferred embodiment of the present invention, therefore all equivalence changes done according to structure, feature and the principle described in present patent application scope or modification, it is included in the protection domain of present patent application.
Claims (8)
1. the high voltage generating station cable detecting device being provided with rotating speed detector, it is characterized in that: include disc base (1), described disc base (1) is provided with boss, described boss is provided with motor (2), the clutch end of described motor (2) is provided with detection platform (3), described detection platform (3) end face is provided with multiple test sides (5) that the arc length such as a circle are arranged, being provided with circuit in the middle of described detection platform (3) and shelve post, described circuit is shelved column top and is provided with antenna box (4)；Also include heat source temperature detector and electric field intensity detector；Described heat source temperature detector and electric field intensity detector are respectively arranged in test side (5)；Also include processor, alarm device, communicator；Described heat source temperature detector, electric field intensity detector, alarm device, communicator are connected with processor signal respectively；Described communicator includes communication antenna, and described communication antenna is located in antenna box (4)；
Also include the rotating speed detector pillar (8) being located on disc base (1), the free end of described rotating speed detector pillar (8) is not less than described detection platform (3) end face, being provided with the rotating speed detector for detecting described detection platform (3) rotating speed in described rotating speed detector pillar (8), described rotating speed detector is connected with processor signal；
Described disc base (1) is magnetic disk base (1) structure, also includes fixture, and described fixture includes magnetic fixed block (6), and described magnetic fixed block (6) is provided with a U-clamp groove (7), and described U-clamp groove (7) is provided with fastening screw；
Described communication antenna includes the PCB substrate (9) of circle and is located at the micro-strip oscillator in PCB substrate (9)；Described micro-strip oscillator includes laterally zygomorphic two groups of microstrip elements, and often group microstrip element includes two symmetrical micro-strip oscillators；Described each micro-strip oscillator includes the 6th antenna arm (96) that first antenna arm (91) the third antenna arm (93) parallel with the second antenna arm (92) with the second antenna arm (92) that first antenna arm (91) be arranged in parallel fourth antenna arm (94) parallel with third antenna arm (93) fiveth antenna arm (95) parallel with four antenna arms is parallel with the 5th antenna arm (95)；Described first antenna arm (91) is identical with the 6th antenna arm (96) lateral length, lateral length is first antenna arm (91) 1/3rd of described second antenna arm (92)；Described third antenna arm (93) is identical with the lateral length of the 5th antenna arm (95), lateral length is the 4th oscillator arms 2/3rds of described third antenna arm (93)；Described first antenna arm (91) is equipped with multiple breach (905) to the 6th antenna arm (96), and the spacing of the breach (905) on each strip antenna arm is 23-28mm；It is provided with one group of coupling arm between described first antenna arm (91) and the 6th antenna arm (96), it is provided with one group of coupling arm between described first antenna arm (91) and the 4th antenna arm (94), it is provided with one group of coupling arm between described second antenna arm (92) and third antenna arm (93), between described 4th antenna arm (94) and the 5th antenna arm (95), is provided with one group of coupling arm；Described often group coupling arm includes the first coupling bar (97) and the second coupling bar (98), and described first coupling bar (97) free end is a circular arc, and the second coupling bar (98) free end is concave shape；The upper side near first antenna arm (91) to the 6th antenna arm (96) of described PCB substrate (9) is respectively provided with the first power feed hole of respectively respective antenna arm feed, and the opposite side of described first antenna arm (91) to the 6th antenna arm (96) is respectively equipped with laciniation.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector the most according to claim 1, it is characterised in that: it is provided with circular parasitic oscillator sheet (904) between described first antenna arm (91) and third antenna arm (93).
A kind of high voltage generating station cable detecting device being provided with rotating speed detector the most according to claim 1, it is characterised in that: described breach (905) is rectangular indentation (905).
A kind of high voltage generating station cable detecting device being provided with rotating speed detector the most according to claim 1, it is characterised in that: being additionally provided with the isolation arm (901) of fold-line-shaped in described PCB substrate (9), described isolation arm (901) is located at the two ends of two groups of microstrip elements.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector the most according to claim 1, it is characterized in that: described PCB substrate (9) back side is provided with second power feed hole corresponding with power feed hole, also including the 3rd power feed hole (903), described 3rd power feed hole (903) is coupled with the second power feed hole feed respectively by feed line.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector the most according to claim 1, it is characterised in that: test side (5) quantity is four.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector the most according to claim 1, it is characterised in that: between described first coupling bar (97) and the second coupling bar (98), coupling distance is 0.3mm-1.5mm.
A kind of high voltage generating station cable detecting device being provided with rotating speed detector the most according to claim 1, it is characterised in that: being additionally provided with insulating isolation belt (902) in described PCB substrate (9), two groups of microstrip elements are separated by described insulating isolation belt (902).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510595146.XA CN105136205B (en) | 2015-09-18 | 2015-09-18 | It is provided with the high voltage generating station cable detecting device of rotating speed detector |
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| CN201510595146.XA CN105136205B (en) | 2015-09-18 | 2015-09-18 | It is provided with the high voltage generating station cable detecting device of rotating speed detector |
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| CN105136205A CN105136205A (en) | 2015-12-09 |
| CN105136205B true CN105136205B (en) | 2016-08-17 |
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| CN201510595146.XA Expired - Fee Related CN105136205B (en) | 2015-09-18 | 2015-09-18 | It is provided with the high voltage generating station cable detecting device of rotating speed detector |
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| CN105424086B (en) * | 2015-11-09 | 2016-09-14 | 国网山东省电力公司沂水县供电公司 | A kind of highly sensitive high voltage generating station detection device |
| CN105203145B (en) * | 2015-11-09 | 2016-08-03 | 国网山东省电力公司章丘市供电公司 | A kind of high voltage generating station detection device being provided with U-clamp groove |
| CN106568475A (en) * | 2015-11-09 | 2017-04-19 | 钱才英 | High-voltage power plant detection device |
| CN105424085B (en) * | 2015-11-09 | 2016-09-28 | 国网山东省电力公司莱芜供电公司 | High voltage generating station detection device |
| CN105318914B (en) * | 2015-11-09 | 2016-09-28 | 国网山东省电力公司章丘市供电公司 | A kind of high voltage generating station detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4904996A (en) * | 1988-01-19 | 1990-02-27 | Fernandes Roosevelt A | Line-mounted, movable, power line monitoring system |
| CN101546863B (en) * | 2009-03-31 | 2013-12-11 | 京信通信系统（中国）有限公司 | Broadband dualpolarization radiation unit |
| CN201654175U (en) * | 2010-04-09 | 2010-11-24 | 重庆大学 | Power equipment visual detection device based on partial discharge signal |
| CN101852835B (en) * | 2010-04-09 | 2013-01-09 | 重庆大学 | Power equipment visual detection device based on partial discharge signal and detection method thereof |
| CN103683499B (en) * | 2013-11-30 | 2016-02-03 | 国网河南西峡县供电公司 | The infrared automatic temperature measurement early warning system of a kind of converting station electric power apparatus remote |
| CN203798912U (en) * | 2014-03-11 | 2014-08-27 | 国家电网公司 | Portable electric field instrument system for site selection |
| CN104655993A (en) * | 2015-01-28 | 2015-05-27 | 杭州申昊科技股份有限公司 | Transformer partial discharge online monitoring system |
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Inventor after: Liu Zhenhua Inventor after: Sun Chuanjian Inventor after: Zhang Jincheng Inventor after: Zhang Lei Inventor after: Geng Huiying Inventor after: Zhang Huagang Inventor after: Wang Qing Inventor after: Wang Xikai Inventor after: Shi Yu Inventor before: Jiang Jianliang |
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Effective date of registration: 20160713 Address after: 250200, 60, Fu Fu Street, new administration district, Ji'nan, Shandong, Zhangqiu Applicant after: ZHANGQIU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY Applicant after: State Grid Corporation of China Address before: 523000, Guangdong City, Dongguan province Hui City Center C District 6/7 building Soufangwang Applicant before: Jiang Jianliang |
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