CN112235011B - Signal receiving and transmitting device based on 5G - Google Patents
Signal receiving and transmitting device based on 5G Download PDFInfo
- Publication number
- CN112235011B CN112235011B CN202010997055.XA CN202010997055A CN112235011B CN 112235011 B CN112235011 B CN 112235011B CN 202010997055 A CN202010997055 A CN 202010997055A CN 112235011 B CN112235011 B CN 112235011B
- Authority
- CN
- China
- Prior art keywords
- converter
- fixed
- transmitting antenna
- transmitting
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a 5G-based signal receiving and transmitting device, wherein a pan surface antenna receiver for receiving 5G wireless signals is arranged on one side of a converter, and a transmitting antenna for transmitting the 5G wireless signals is arranged on the upper part of the converter in a telescopic manner; a rotating shaft fixed with the converter is rotatably sleeved on the upper part of the signal frame, and a wind power structure for driving the rotating shaft, the converter and the pan surface antenna receiver to rotate is arranged between the signal frame and the rotating shaft; drive the action of wind-force structure under the strong bad weather environment of wind-force, wind-force structure drive axis of rotation and converter and pan face antenna receiver follow the rotation, utilize rotatory pan face antenna receiver to realize 360 ring received signal, become the activity orientation received signal with fixed receipt orientation, drive the action of transmission assembly in wind-force structure action, transmission assembly drives the transmitting antenna and shortens, avoids the transmitting antenna of overlength to bend under the wind-force effect and damages.
Description
Technical Field
The invention relates to the field of communication transmission, in particular to a signal receiving and transmitting device based on 5G.
Background
Wireless communication signal transceivers are very common in life, and are installed in many high-rise buildings.
The transceiver breaks the hundred-meter limitation of Ethernet cable in data transmission, and with the development of network towards remote transmission, most operators hope that all devices in the network can remotely receive and transmit signals; the presence of the transceiver converts signals to each other, ensures smooth transmission of data packets between the two networks, and extends the transmission distance limit of the networks from 100 meters of copper wire to 100 kilometers.
Most of the existing signal transceiving devices are fixedly arranged, and particularly in the aspect of 5G signal transmission, because the signal carrying capacity is increased, a reliable signal receiving and transmitting device needs to be provided.
Disclosure of Invention
Based on the above mentioned shortcomings in the prior art, the present invention provides a 5G-based signal receiving and transmitting device.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
A5G-based signal receiving and transmitting device comprises a signal frame and a converter which is rotatably arranged on the upper part of the signal frame and used for data conversion, wherein a pan surface antenna receiver used for receiving 5G wireless signals is arranged on one side of the converter, and a transmitting antenna used for transmitting the 5G wireless signals is arranged on the upper part of the converter in a telescopic mode;
a rotating shaft fixed with the converter is rotatably sleeved on the upper part of the signal frame, and a wind power structure for driving the rotating shaft, the converter and the pan surface antenna receiver to rotate is arranged between the signal frame and the rotating shaft;
the transmission component is connected with the wind power structure, and the wind power structure drives the transmission component to act to control the length of the transmitting antenna when driving the converter and the pan surface antenna receiver to rotate.
As a further scheme of the invention: the wind power structure comprises an impeller fixed on the rotating shaft, a sleeve is arranged above the impeller and is rotatably sleeved with the rotating shaft, a fixed disc is fixed on the sleeve, a tray is fixed on the upper portion of the signal frame, and the tray is fixed with the fixed disc through a supporting piece.
As a still further scheme of the invention: the transmitting antenna is arranged above the converter through an elastic telescopic structure, the elastic telescopic structure comprises a sleeve seat vertically fixed on the upper part of the converter, the transmitting antenna is telescopically sleeved on the sleeve seat, and a cylindrical spring in contact with the bottom of the transmitting antenna is arranged in the sleeve seat;
the transmitting antenna and the pan surface antenna receiver are in signal connection with the converter.
As a still further scheme of the invention: the transmission assembly comprises a guide piece fixed on the converter at one side opposite to the pan surface antenna receiver, a rotating structure arranged on the guide piece and connected with the transmitting antenna, and a meshing structure used for connecting the rotating structure and the rotating shaft;
and a base for fixedly mounting the signal frame is fixed at the lower part of the signal frame.
As a still further scheme of the invention: the meshing structure comprises a bull gear fixed on the sleeve, a worm vertically and rotatably arranged on the guide piece, and a pinion fixed on the lower part of the worm and meshed with the bull gear;
the rotating structure is connected with the worm, and a lifting structure is further arranged between the rotating structure and the transmitting antenna.
As a still further scheme of the invention: the rotating structure comprises a worm wheel which is rotatably arranged on the guide piece and is meshed with the worm, a transmission gear which is rotatably arranged on the upper part of the guide piece, and a transmission piece which is used for connecting the transmission gear and the worm wheel;
the transmission gear is connected with the lifting structure.
As a still further scheme of the invention: the lifting structure comprises an expansion piece vertically sleeved on the guide piece in a sliding manner, a straight rack fixed on the surface of the expansion piece and meshed with the transmission gear, and a connecting beam used for connecting the upper part of the transmitting antenna with the expansion piece;
one side of the connecting beam is fixed with the transmitting antenna, and the other side of the connecting beam is fixed with the upper part of the telescopic piece.
After adopting the structure, compared with the prior art, the invention has the following advantages: the wind power structure is driven to act in a severe weather environment with strong wind power, the wind power structure drives the rotating shaft, the converter and the pan surface antenna receiver to rotate along with the rotating shaft, 360-degree annular signal receiving is achieved by the aid of the rotating pan surface antenna receiver, fixed receiving orientation is changed into movable orientation receiving signals, and signal receiving efficiency is improved; meanwhile, the transmission assembly is driven to move when the wind power structure moves, the transmission assembly drives the transmitting antenna to be shortened, the phenomenon that the overlong transmitting antenna is bent and damaged under the action of wind power is avoided, and the transmitting antenna is protected.
Drawings
Fig. 1 is a schematic structural diagram of a 5G-based signal receiving and transmitting device.
Fig. 2 is a top view of a large gear and a small gear in a 5G-based signal receiving and transmitting device.
Fig. 3 is an enlarged view of a point a in fig. 1.
Fig. 4 is a schematic structural diagram of a tray, a support and a fixing tray in the signal receiving and transmitting device based on 5G.
In the figure: 1-a signal frame; 2-a rotating shaft; 3-a sleeve; 4-a tray; 5-a support member; 6-fixing the disc; 7-an impeller; 8-a bull gear; 9-pinion gear; 10-a converter; 11-pan surface antenna receiver; 12-a transmitting antenna; 13-a sleeve seat; 14-cylindrical spring; 15-a worm; 16-a worm gear; 17-a transmission member; 18-a transmission gear; 19-a guide; 20-straight rack; 21-a telescopic member; 22-base.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 4, in the embodiment of the present invention, a 5G-based signal receiving and transmitting device includes a signal frame 1 and a converter 10 rotatably disposed on an upper portion of the signal frame 1 for data conversion, a pan antenna receiver 11 for receiving a 5G wireless signal is mounted on one side of the converter 10, and a transmitting antenna 12 for transmitting a 5G wireless signal is telescopically disposed on an upper portion of the converter 10; a rotating shaft 2 fixed with the converter 10 is rotatably sleeved on the upper part of the signal frame 1, and a wind power structure for driving the rotating shaft 2, the converter 10 and the pan surface antenna receiver 11 to rotate is arranged between the signal frame 1 and the rotating shaft 2; the device is characterized in that a transmission component connected with the transmitting antenna 12 and used for driving the transmitting antenna 12 to stretch is installed on one side of the converter 10, the transmission component is connected with the wind power structure, and the wind power structure drives the transmission component to act to control the length of the transmitting antenna 12 when driving the converter 10 and the pan surface antenna receiver 11 to rotate.
The wind power structure is driven to act in a severe weather environment with strong wind power, the wind power structure drives the rotating shaft 2, the converter 10 and the pan surface antenna receiver 11 to rotate along with the rotating shaft, 360-degree annular signal receiving is achieved through the rotating pan surface antenna receiver 11, the fixed receiving direction is changed into the movable direction, and the signal receiving efficiency is improved; meanwhile, the transmission component is driven to act while the wind power structure acts, the transmission component drives the transmitting antenna 12 to be shortened, the overlong transmitting antenna 12 is prevented from being bent and damaged under the action of wind power, and the transmitting antenna 12 is protected.
In one embodiment of the invention, the wind power structure comprises an impeller 7 fixed on the rotating shaft 2, a sleeve 3 rotatably sleeved with the rotating shaft 2 is arranged above the impeller 7, a fixed disc 6 is fixed on the sleeve 3, a tray 4 is fixed on the upper part of the signal frame 1, and the tray 4 and the fixed disc 6 are fixed through a support member 5;
the impeller 7 and the rotating shaft 2 are driven to rotate under the action of wind power in an external environment and the impeller 7, and the rotating shaft 2 drives the converter 10 and the pan surface antenna receiver 11 to rotate, so that the function of receiving signals in an annular mode is achieved, and no dead angle exists in the signal receiving direction.
In another embodiment of the present invention, the transmitting antenna 12 is installed above the converter 10 through an elastic telescopic structure, the elastic telescopic structure includes a sleeve seat 13 vertically fixed on the upper portion of the converter 10, the transmitting antenna 12 is telescopically sleeved on the sleeve seat 13, and a cylindrical spring 14 contacting with the bottom of the transmitting antenna 12 is installed in the sleeve seat 13;
the transmitting antenna 12 and the pan surface antenna receiver 11 are both in signal connection with the converter 10;
the cylindrical spring 14 is used for realizing elastic telescopic connection between the transmitting antenna 12 and the sleeve seat 13, and when the transmission assembly works, the transmitting antenna 12 can be driven to compress the cylindrical spring 14 to be seated in the sleeve seat 13, so that the length is shortened, and the transmitting antenna 12 is protected from being broken.
In a further embodiment of the present invention, the transmission assembly comprises a guide 19 fixed on the converter 10 on the side opposite to the pan surface antenna receiver 11, a rotating structure mounted on the guide 19 and connected to the transmitting antenna 12, and a meshing structure for connecting the rotating structure and the rotating shaft 2;
a base 22 for fixedly mounting the signal frame 1 is fixed at the lower part of the signal frame 1;
when the rotating shaft 2 rotates, the meshing structure is driven to act, and the meshing structure drives the rotating structure to act, so that the transmitting antenna 12 is driven to stretch along the sleeve seat 13, and the length of the transmitting antenna 12 is adjusted.
In a further embodiment of the invention, the engagement structure comprises a gearwheel 8 fixed on the sleeve 3, a worm 15 vertically rotatably arranged on the guide 19, and a pinion 9 fixed below the worm 15 and engaged with the gearwheel 8;
the rotating structure is connected with the worm 15, and a lifting structure is arranged between the rotating structure and the transmitting antenna 12;
when the rotating shaft 2 rotates, the converter 10 is driven to rotate, the rotating converter 10 drives the guide piece 19 and the worm 15 to rotate around the signal frame 1, so that the small gear 9 is driven to follow and make circular motion, the small gear 9 making circular motion is combined with the fixed large gear 8 to drive the worm 15 to rotate, and the worm 15 rotates while making circular motion around the signal frame 1.
In still another embodiment of the present invention, the rotating structure includes a worm wheel 16 rotatably mounted on the guide 19 and engaged with the worm 15, a transmission gear 18 rotatably mounted on an upper portion of the guide 19, and a transmission member 17 for connecting the transmission gear 18 and the worm wheel 16;
the transmission gear 18 is connected with the lifting structure;
when the worm 15 rotates, the worm wheel 16 is driven to rotate, the rotating worm wheel 16 drives the transmission gear 18 to rotate by using the transmission piece 17, and the transmission gear 18 rotates while making circular motion around the axis of the signal frame 1 along with the guide piece 19.
In still another embodiment of the present invention, the lifting structure comprises an expansion member 21 vertically slidably fitted over the guide member 19, a spur rack 20 fixed to a surface of the expansion member 21 and engaged with the transmission gear 18, and a connection beam for connecting an upper portion of the transmitting antenna 12 with the expansion member 21;
one side of the connecting beam is fixed with the transmitting antenna 12, and the other side of the connecting beam is fixed with the upper part of the telescopic piece 21;
when the transmission member 17 drives the transmission gear 18 to rotate, the rotating transmission gear 18 drives the telescopic member 21 to move downwards along the guide member 19, so as to drive the telescopic member 21 and the connecting beam to drive the transmitting antenna 12 to contract downwards;
it should be noted that, when the teeth at the uppermost portion of the spur rack 20 move to be combined with the transmission gear 18, the spur rack 20, the telescopic member 21 and the transmitting antenna 12 are kept at fixed positions due to the action of the cylindrical spring 14, and the transmitting antenna 12 is automatically driven to extend by the cylindrical spring 14 after the wind power stops, so that the function of automatically adjusting the length of the antenna according to the wind power is provided.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (7)
1. A5G-based signal receiving and transmitting device comprises a signal frame (1) and a converter (10) which is rotatably arranged at the upper part of the signal frame (1) and used for data conversion, and is characterized in that a pan surface antenna receiver (11) used for receiving 5G wireless signals is installed at one side of the converter (10), and a transmitting antenna (12) used for transmitting the 5G wireless signals is telescopically arranged at the upper part of the converter (10);
a rotating shaft (2) fixed with the converter (10) is rotatably sleeved on the upper part of the signal frame (1), and a wind power structure for driving the rotating shaft (2), the converter (10) and the pan surface antenna receiver (11) to rotate is arranged between the signal frame (1) and the rotating shaft (2);
the transmission device is characterized in that one side of the converter (10) is provided with a transmission component which is connected with the transmitting antenna (12) and used for driving the transmitting antenna (12) to stretch, the transmission component is connected with the wind power structure, and the wind power structure drives the transmission component to move to control the length of the transmitting antenna (12) when driving the converter (10) and the pan surface antenna receiver (11) to rotate.
2. The 5G-based signal receiving and transmitting device according to claim 1, wherein the wind structure comprises an impeller (7) fixed on the rotating shaft (2), a sleeve (3) rotatably sleeved with the rotating shaft (2) is arranged above the impeller (7), a fixed disc (6) is fixed on the sleeve (3), a tray (4) is fixed on the upper portion of the signal frame (1), and the tray (4) and the fixed disc (6) are fixed through a support member (5).
3. A 5G-based signal receiving and transmitting device according to claim 1, wherein the transmitting antenna (12) is installed above the converter (10) through an elastic telescopic structure, the elastic telescopic structure comprises a sleeve seat (13) vertically fixed on the upper part of the converter (10), the transmitting antenna (12) is telescopically sleeved on the sleeve seat (13), and a cylindrical spring (14) contacting with the bottom of the transmitting antenna (12) is installed in the sleeve seat (13);
the transmitting antenna (12) and the pan surface antenna receiver (11) are in signal connection with the converter (10).
4. A 5G-based signal receiving and transmitting device according to claim 2, wherein the transmission assembly comprises a guide member (19) fixed on the side of the converter (10) opposite to the pan surface antenna receiver (11), a rotating structure mounted on the guide member (19) and connected with the transmitting antenna (12), and a meshing structure for connecting the rotating structure and the rotating shaft (2);
and a base (22) for fixedly mounting the signal frame (1) is fixed at the lower part of the signal frame (1).
5. A5G-based signal receiving and transmitting device according to claim 4, wherein the meshing structure comprises a large gear (8) fixed on the sleeve (3), a worm (15) vertically and rotatably arranged on the guide piece (19), and a small gear (9) fixed at the lower part of the worm (15) and meshed with the large gear (8);
the rotating structure is connected with the worm (15), and a lifting structure is further arranged between the rotating structure and the transmitting antenna (12).
6. A5G-based signal receiving and transmitting device according to claim 5, wherein the rotating structure comprises a worm wheel (16) rotatably mounted on the guide member (19) and engaged with the worm (15), a transmission gear (18) rotatably mounted on the upper part of the guide member (19), and a transmission member (17) for connecting the transmission gear (18) and the worm wheel (16);
the transmission gear (18) is connected with the lifting structure.
7. The 5G-based signal receiving and transmitting device is characterized in that the lifting structure comprises a telescopic piece (21) vertically sleeved on the guide piece (19) in a sliding manner, a straight rack (20) fixed on the surface of the telescopic piece (21) and meshed with the transmission gear (18), and a connecting beam used for connecting the upper part of the transmitting antenna (12) and the telescopic piece (21);
one side of the connecting beam is fixed with the transmitting antenna (12), and the other side of the connecting beam is fixed with the upper part of the telescopic piece (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010997055.XA CN112235011B (en) | 2020-09-21 | 2020-09-21 | Signal receiving and transmitting device based on 5G |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010997055.XA CN112235011B (en) | 2020-09-21 | 2020-09-21 | Signal receiving and transmitting device based on 5G |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112235011A CN112235011A (en) | 2021-01-15 |
| CN112235011B true CN112235011B (en) | 2021-11-02 |
Family
ID=74108412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010997055.XA Active CN112235011B (en) | 2020-09-21 | 2020-09-21 | Signal receiving and transmitting device based on 5G |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112235011B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113112844A (en) * | 2021-03-18 | 2021-07-13 | 浙江金乙昌科技股份有限公司 | Vehicle remote control system based on 5G communication and high-precision positioning and control device thereof |
| CN116773887A (en) * | 2021-12-11 | 2023-09-19 | 常后文 | Mutual inductor signal collector based on wireless transmission technology |
| CN114560098B (en) * | 2022-03-21 | 2023-10-24 | 广东电网有限责任公司 | Remote communication module for light unmanned aerial vehicle mounting |
| CN116743202B (en) * | 2023-07-18 | 2024-04-09 | 湖北雷克斯智能技术有限公司 | Signal receiving and transmitting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288786A (en) * | 2011-08-12 | 2011-12-21 | 山东省科学院激光研究所 | Optical fiber interference anemoscope and probe thereof |
| CN205430215U (en) * | 2015-12-23 | 2016-08-03 | 国网福建省电力有限公司泉州供电公司 | A signal send -receiver device for on electrified shaft tower |
| CN108360481A (en) * | 2018-03-06 | 2018-08-03 | 陈兴帅 | Polybag refuse collector in a kind of water |
| CN108770083A (en) * | 2018-06-22 | 2018-11-06 | 郑州艾莫弗信息技术有限公司 | One kind being based on network technology service user external signal transmitting base station |
| CN110048206A (en) * | 2019-04-25 | 2019-07-23 | 黄河 | A kind of information processing reception device |
-
2020
- 2020-09-21 CN CN202010997055.XA patent/CN112235011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288786A (en) * | 2011-08-12 | 2011-12-21 | 山东省科学院激光研究所 | Optical fiber interference anemoscope and probe thereof |
| CN205430215U (en) * | 2015-12-23 | 2016-08-03 | 国网福建省电力有限公司泉州供电公司 | A signal send -receiver device for on electrified shaft tower |
| CN108360481A (en) * | 2018-03-06 | 2018-08-03 | 陈兴帅 | Polybag refuse collector in a kind of water |
| CN108770083A (en) * | 2018-06-22 | 2018-11-06 | 郑州艾莫弗信息技术有限公司 | One kind being based on network technology service user external signal transmitting base station |
| CN110048206A (en) * | 2019-04-25 | 2019-07-23 | 黄河 | A kind of information processing reception device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112235011A (en) | 2021-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112235011B (en) | Signal receiving and transmitting device based on 5G | |
| CN111146559B (en) | Portable satellite communication antenna device and use method | |
| CN111628265B (en) | Antenna with windproof function | |
| US20210328342A1 (en) | Mechanical actuators for a wireless telecommunication antenna mount | |
| CN110062300A (en) | A kind of 5G signal base station automatically adjusting angle | |
| US11811129B2 (en) | Mechanical actuators for a wireless telecommunication antenna mount | |
| CN214043964U (en) | Outdoor antenna of 5G communication network base station | |
| CN110805354A (en) | 5G signal transmitting tower erection equipment | |
| CN217507932U (en) | Radar detection system and lightning arrester thereof | |
| CN214542505U (en) | Internet of things antenna structure | |
| CN220928896U (en) | Communication signal tower | |
| CN208873868U (en) | A kind of UAV Communication antenna | |
| CN211045699U (en) | Installation structure of omnidirectional antenna for base station | |
| CN211700541U (en) | Antenna for wireless communication | |
| CN209804876U (en) | Mobile communication antenna applied to 5G communication | |
| CN214124121U (en) | VDES high gain antenna device | |
| CN108598709B (en) | Wall-mounted adjustable antenna | |
| CN109103564B (en) | Wireless electronic equipment | |
| CN112324224B (en) | 5G signal tower with bird repelling function | |
| CN214589257U (en) | Antenna device for 5G communication | |
| CN218827848U (en) | Angle-adjustable indoor antenna | |
| CN220492215U (en) | 5G spectrum streaming media transmission equipment | |
| CN219794856U (en) | Lifting type communication base station | |
| CN213660602U (en) | Portable electric antenna lifting device | |
| CN216773490U (en) | Signal antenna support convenient to adjust |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211018 Address after: 415000 No. 670 Jinli Avenue, Wanshougong neighborhood committee, Liyang sub district office, Li County, Changde City, Hunan Province (10th floor, Telecom Building) Applicant after: Hunan runjian'an Technology Co.,Ltd. Address before: College of mechanical and electrical engineering, Hunan Institute of applied technology, 1027 Shanjuan Road, Qiaonan District, Changde City, Hunan Province, 415000 Applicant before: Wu Feng |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |