CN110970730A - Multichannel satellite group-path demodulation decoding equipment - Google Patents
Multichannel satellite group-path demodulation decoding equipment Download PDFInfo
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- CN110970730A CN110970730A CN201911394408.0A CN201911394408A CN110970730A CN 110970730 A CN110970730 A CN 110970730A CN 201911394408 A CN201911394408 A CN 201911394408A CN 110970730 A CN110970730 A CN 110970730A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/005—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using remotely controlled antenna positioning or scanning
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
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Abstract
The invention discloses multichannel satellite group channel demodulation decoding equipment which comprises a protective cover, wherein the protective cover is sleeved at the bottom of a supporting cylinder, the bottom of a turntable is provided with an inner gear part and a bottom end surface, and the inner gear part is in meshing transmission with a first gear wheel; the first gear is fixed at one end of the first shaft body, and the other end of the first shaft body penetrates through the partition plate and then is respectively assembled and fixed with an output shaft of the first motor; a second motor is fixed on the turntable, an output shaft of the second motor is fixedly connected with one end of the lifting shaft body, and a worm wheel is fixed on the lifting shaft body; the worm wheel is meshed with the worm part, the lifting block is assembled with the screw rod in a screwing mode through threads, and one end of the lifting block penetrates through a long groove formed in the supporting cylinder and then is hinged with one end of the adjusting cylinder through a second rotating shaft; the adjusting inner cylinder is assembled with one end of an adjusting rod, and the other end of the adjusting rod is hinged with one end of a connecting plate through a third rotating shaft; the supporting rod is fixed at the top of the supporting cylinder, the supporting rod is hinged with one end of the supporting column through a first rotating shaft, and the other end of the supporting column is assembled and fixed with the signal pot.
Description
Technical Field
The invention relates to the technical field of satellite signal anti-interference, in particular to an anti-interference auxiliary device for multichannel satellite demodulation and decoding.
Background
The ground satellite signal interference device is composed of a transmitter and a horn antenna, the shell of the transmitter is similar to a trunk amplifier on a cable television, the horn antenna forms a 45-degree included angle, and the sweep frequency type (3.7 GHz-4.2 GHz) broadband pulse directional scanning is adopted to face an area needing interference, so that ground transverse interference is implemented, and the C-band satellite receiving antenna in a certain specific area loses the receiving capability or directly damages the frequency demultiplier.
The satellite pan is a metal paraboloid and is responsible for reflecting satellite signals to the feed source and the feed source positioned at the focus of the satellite antenna. The satellite pan is used for collecting weak signals transmitted from the satellite and removing noise as far as possible. However, the angle of the satellite pot is not convenient to adjust after installation, and under the condition of being influenced by the external environment, the signal of the satellite pot is very easy to interfere and shield, and the angle of the satellite pot needs to be debugged again to avoid interference at the moment, but the position and the angle of the satellite pot are not easy to adjust at present, so that inconvenience is brought to a user.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a multichannel satellite group demodulation and decoding apparatus, which is convenient for angle adjustment.
In order to achieve the aim, the invention provides an anti-interference auxiliary device for multichannel satellite demodulation and decoding, which comprises a base, a protective cover and a supporting cylinder, wherein the protective cover is sleeved at the bottom of the supporting cylinder and is fixed on the base;
the inner part of the protective cover is an inner cavity, the bottom of the supporting cylinder is arranged in the inner cavity and is fixedly assembled with the rotary table, the bottom of the rotary table is provided with an inner gear part and a bottom end surface, the inner gear part is provided with a latch, and the latch is respectively in meshing transmission with the first gear and the second gear;
the first gear and the second gear are respectively fixed at one end of a first shaft body and one end of a second shaft body, and the other ends of the first shaft body and the second shaft body penetrate through the partition plate and are respectively assembled and fixed with an output shaft of the first motor and an input shaft of the second angle sensor;
a second motor is fixed on the turntable, an output shaft of the second motor is fixedly connected with one end of the lifting shaft body, a worm wheel is fixed on the lifting shaft body, and the other end of the lifting shaft body is fixedly connected with an input shaft of the first angle sensor;
the worm wheel is meshed with the worm part to form a worm and worm wheel transmission mechanism, the worm part is arranged at the bottom of the screw rod, the screw rod is arranged in the supporting inner cylinder of the supporting cylinder, the screw rod is sleeved with the lifting block, the lifting block and the screw rod are assembled in a screwing mode through threads, and one end of the lifting block penetrates through an elongated slot formed in the supporting cylinder and then is hinged with one end of the adjusting cylinder through a second rotating shaft;
the adjusting cylinder is internally provided with a hollow adjusting inner cylinder, the adjusting inner cylinder is assembled with one end of an adjusting rod, the other end of the adjusting rod is hinged with one end of a connecting plate through a third rotating shaft, and the other end of the connecting plate is assembled and fixed with the signal pot;
a supporting rod is fixed at the top of the supporting cylinder, the supporting rod is hinged with one end of the supporting column through a first rotating shaft, and the other end of the supporting column is assembled and fixed with the signal pot;
the inside of the signal pot is a paraboloid which is used for reflecting signals to the feed source, and the feed source is arranged on the focus of the signal pot and assembled with the signal pot through the supporting rod.
Preferably, the base is provided with a fixing hole, and the expansion bolt penetrates through the fixing hole to fix the base on the ground.
Preferably, the inner wall of the inner cavity is fixed with a limit ring, the limit ring is tightly attached to the top surface of the rotary table, the bottom surface of the rotary table is fixedly assembled with a seat ring of the thrust ball bearing, and a shaft ring of the thrust ball bearing is fixedly assembled with the partition plate.
Preferably, the bottom end face is tightly pressed with a brake disc, the brake disc is fixedly assembled with one end of the third shaft body, and the other end of the third shaft body penetrates through the partition plate and then is assembled with the electromagnet; and a brake spring is arranged between the brake disc and the partition plate and used for providing a force for tightly pushing the bottom end face for the brake disc.
Preferably, the first motor and the second motor both adopt stepping motors, and signal ends of the stepping motors are in communication connection with the single chip microcomputer.
Preferably, the protective cover is provided with a mounting hole, the inner wall of the mounting hole is hermetically assembled with the outer wall of the supporting cylinder through a sealing ring, the supporting cylinder is provided with a positioning convex ring, the positioning convex ring is used for positioning the top surface of the inner side of the protective cover, the top surface of the inner cavity is fixedly provided with the moisture guide cylinder, and the interior of the moisture guide cylinder is a hollow moisture guide inner cylinder;
the moisture-conducting inner cylinder is internally provided with water-swellable rubber, the bottom of the water-swellable rubber is tightly attached to the first induction sheet, the first conducting sheet is arranged on the supporting cylinder, and a first conducting bulge is arranged on the end surface of the first conducting sheet facing the second conducting sheet;
the first conductive protrusion is opposite to the second conductive protrusion, the second conductive protrusion is fixed on the second conductive sheet, and the conductive sheet is arranged on the support cylinder;
the first conductive bulge is in conductive connection with the negative electrode of a 3V battery, the positive electrode of the battery is in series connection with a resistor and then is in communication connection with the signal end of the single chip microcomputer, and the signal end of the single chip microcomputer is in conductive connection with the second conductive bulge.
Preferably, the top of the moisture guiding cylinder is provided with a diversion inclined plane, and the diversion inclined plane is obliquely and downwards arranged from the mounting hole to the moisture guiding inner cylinder.
Preferably, the bolt penetrates through the adjusting cylinder and then tightly props against the side wall of the adjusting rod to fix the adjusting rod, and the bolt is assembled with the side wall of the adjusting cylinder in a screwing mode through threads.
The invention has the beneficial effects that:
the position of the signal pot can be accurately adjusted through the first motor and the second motor, when the signal pot cannot receive satellite signals, a user can adjust the signal pot by himself or remotely, convenience is brought to the user, the problems that the angle of the signal pot is not convenient to adjust after installation, the signal pot is easy to interfere under the condition of being influenced by an external environment, and the interference can be avoided only by manually debugging the angle of the satellite pot again can be solved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an enlarged view of fig. 1 at F1.
Fig. 3 is an enlarged view of fig. 1 at F2.
FIG. 4 is a schematic structural diagram of the present invention.
FIG. 5 is a schematic view of the structure of the adjusting cylinder and the adjusting rod according to the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1 to 5, a multichannel satellite group demodulation decoding device includes a base 110, a protective cover 120, and a supporting cylinder 170, wherein the protective cover 120 is sleeved on the bottom of the supporting cylinder 170 and fixed on the base 110, the base 110 is provided with a fixing hole 111, and when in use, an expansion bolt can be used to pass through the fixing hole 111 to fix the base on the ground;
the protective cover 120 is internally provided with an inner cavity 121, the bottom of the supporting cylinder 170 is arranged in the inner cavity 121 and is fixedly assembled with the turntable 130, the bottom of the turntable 130 is provided with an inner gear part 131 and a bottom end surface 132, the inner gear part 131 is provided with a latch, and the latch is respectively meshed with the first gear 310 and the second gear 320 for transmission;
the first gear 310 and the second gear 320 are respectively fixed at one end of the first shaft body 211 and one end of the second shaft body 231, the other end of the first shaft body 211 and the other end of the second shaft body 231 penetrate through the partition plate 150 and are respectively assembled and fixed with an output shaft of the first motor 210 and an input shaft of the second angle sensor 230, the first motor 210 can drive the first shaft body 211 to rotate circumferentially, and when the second shaft body rotates circumferentially, the input shaft of the second angle sensor can be driven to rotate, so that the second angle sensor obtains signal input, and the rotating angle of the turntable 130 can be calculated through the signal;
a limit ring 140 is fixed on the inner wall of the inner cavity 121, the limit ring 140 is tightly attached to the top surface of the turntable 130, the bottom surface of the turntable 130 is fixedly assembled with a seat ring of the thrust ball bearing 160, and a shaft ring of the thrust ball bearing 160 is fixedly assembled with the partition plate 150;
the bottom end surface 132 is tightly pressed with the brake disc 820 so as to limit the rotation of the turntable, the brake disc 820 is fixedly assembled with one end of the third shaft body 221, the other end of the third shaft body 221 passes through the partition plate 150 and then is assembled with the electromagnet 220, and the electromagnet 220 can drive the partition plate 150 to move in the axial direction of the partition plate;
a brake spring 810 is arranged between the brake disc 820 and the partition plate 150, the brake spring 810 is used for providing a force for the brake disc 820 to tightly push against the bottom end face 132, so that the brake disc always locks the turntable and prevents the turntable from rotating, when the turntable needs to rotate, the electromagnet is electrified to pull down the third shaft body, so that the brake disc 820 is separated from the bottom end face 132, the limitation of the brake disc 820 on the turntable is removed, and then the first motor 210 drives the first shaft body to rotate so as to drive the turntable to rotate;
a second motor 240 is fixed on the turntable 130, an output shaft of the second motor 240 is fixedly connected with one end of a lifting shaft body 241, so that the second motor 240 can drive the lifting shaft body to rotate circumferentially, a worm gear 261 is fixed on the lifting shaft body 241, the other end of the lifting shaft body is fixedly connected with an input shaft of a first angle sensor 250, and when the lifting shaft body rotates, the first angle sensor generates a lifting shaft body rotation angle signal;
the worm wheel 261 is engaged with the worm part 2621 to form a worm and worm gear transmission mechanism, the worm part 2621 is arranged at the bottom of the screw 262, the screw 262 is arranged in the support inner cylinder 173 of the support cylinder 170, the screw 262 is sleeved with the lifting block 430, the lifting block 430 and the screw 262 are assembled in a screwing manner through threads, and one end of the lifting block 430 penetrates through the long groove 172 arranged on the support cylinder 170 and then is hinged with one end of the adjusting cylinder 440 through the second rotating shaft 512;
the interior of the adjusting cylinder 440 is a hollow adjusting inner cylinder 441, the adjusting inner cylinder 441 is assembled with one end of an adjusting rod 450, the other end of the adjusting rod 450 is hinged with one end of a connecting plate 520 through a third rotating shaft 513, and the other end of the connecting plate 520 is assembled and fixed with a signal pot 610;
the top of the supporting cylinder 170 is fixed with a supporting rod 410, the supporting rod 410 is hinged with one end of a supporting column 420 through a first rotating shaft 511, and the other end of the supporting column 420 is assembled and fixed with a signal pot 610;
the signal pot 610 is internally provided with a paraboloid and used for reflecting signals to the feed source 630, and the feed source 630 is arranged on the focus of the signal pot and assembled with the signal pot 610 through the supporting rod 620.
When the lifting device is used, the second motor 240 drives the lifting rotating shaft 241 to rotate, namely the worm gear drives the worm to rotate in the circumferential direction, namely the screw 262 is driven to rotate in the circumferential direction, when the screw rotates, the lifting block is driven to move in the axial direction through threads, when the lifting block 430 moves, the signal pot 610 is driven to rotate by taking the first rotating shaft 511 as the center through the adjusting cylinder and the adjusting rod, the angle of the signal pot in the vertical direction is adjusted, and therefore the angle of the signal pot is adjusted to find a strong signal part; and the first motor 210 can drive the turntable to rotate, thereby adjusting the angle of the signal pan in the horizontal direction. During adjustment, the specific rotating angle can be calculated through signals generated by the first angle sensor and the second angle sensor, so that the control is convenient, particularly after the single chip microcomputer is additionally arranged, the signals of the first angle sensor and the second angle sensor can be received through the single chip microcomputer, and then the rotating angle and the final position of the signal pot (the initial state of the signal pot is taken as an original point, the horizontal plane is taken as X, Y axes, and the vertical plane is taken as a Z axis) are calculated;
the first motor and the second motor are both stepping motors, signal ends of the stepping motors are in communication connection with the single chip microcomputer, and the single chip microcomputer can send control instructions to control the rotation angles of the first motor and the second motor. In specific implementation, the final stronger signal part can be determined by calculating the signal strength of different points, and the specific technology can refer to the existing mobile phone WIFI signal strength detection technology;
further, in order to prevent water from entering the inner cavity 121, the applicant made the following improvements: the protective cover 120 is provided with a mounting hole 122, the inner wall of the mounting hole 122 is hermetically assembled with the outer wall of the support cylinder 170 through a sealing ring 720, the support cylinder 170 is provided with a positioning convex ring 171, the positioning convex ring is used for positioning the top surface of the inner side of the protective cover 120, the top surface of the inner cavity 121 is fixedly provided with a moisture guide cylinder 710, the moisture guide cylinder 710 is internally provided with a hollow moisture guide inner cylinder 711, the top of the moisture guide cylinder is provided with a flow guide inclined plane 712, and the flow guide inclined plane 712 is obliquely and downwards arranged from the mounting hole 122 to the moisture guide inner cylinder 711, so that water permeating into the inner cavity can be guided;
the moisture conducting inner cylinder 711 is internally provided with water swelling rubber 731, the bottom of the water swelling rubber 731 is tightly attached to the first induction sheet 741, the first conduction sheet 741 is arranged on the support cylinder 170, and the end surface of the first conduction sheet 741 facing the second conduction sheet 742 is provided with a first conduction bulge 751;
the first conductive protrusion 751 is opposite to the second conductive protrusion 752, the second conductive protrusion 752 is fixed on the second conductive sheet 742, and the conductive sheet 742 is mounted on the support cylinder 170;
the first conductive protrusion 751 is conductively connected with the negative electrode of a 3V battery, the positive electrode of the battery is in series connection with a resistor and then is in communication connection with the signal end of the single chip microcomputer, and the signal end of the single chip microcomputer is in conductive connection with the second conductive protrusion 752.
When the water-absorbing expansion rubber is used, if water permeates into the moisture-conducting inner cylinder 711, the water-absorbing expansion rubber absorbs water and expands at the same time, the expanded water-absorbing expansion rubber pushes the first conducting sheet 741 to the second conducting sheet 742 until the first conducting projection 751 and the second conducting projection 752 are contacted and conducted, at the moment, a signal end of the single chip microcomputer obtains a signal, and the single chip microcomputer judges that the water permeates into the moisture-conducting inner cylinder 711 and needs to be overhauled. Thereby avoiding the damage of the electric appliance in the inner cavity caused by the infiltration of a large amount of water.
Preferably, during installation, the position of the signal pot needs to be adjusted in advance, so that the total length of the adjusting cylinder and the adjusting rod needs to be adjusted, in the case, the applicant adopts a bolt 460 to penetrate through the adjusting cylinder and then tightly abut against the side wall of the adjusting rod to fix the adjusting rod, and the bolt 460 is screwed with the side wall of the adjusting cylinder 440 through threads.
The invention is not described in detail, but is well known to those skilled in the art.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. A multichannel satellite group channel demodulation decoding device comprises a base, a protective cover and a supporting cylinder, wherein the protective cover is sleeved at the bottom of the supporting cylinder and is fixed on the base; the method is characterized in that:
the inner part of the protective cover is an inner cavity, the bottom of the supporting cylinder is arranged in the inner cavity and is fixedly assembled with the rotary table, the bottom of the rotary table is provided with an inner gear part and a bottom end surface, the inner gear part is provided with a latch, and the latch is respectively in meshing transmission with the first gear and the second gear;
the first gear and the second gear are respectively fixed at one end of a first shaft body and one end of a second shaft body, and the other ends of the first shaft body and the second shaft body penetrate through the partition plate and are respectively assembled and fixed with an output shaft of the first motor and an input shaft of the second angle sensor;
a second motor is fixed on the turntable, an output shaft of the second motor is fixedly connected with one end of the lifting shaft body, a worm wheel is fixed on the lifting shaft body, and the other end of the lifting shaft body is fixedly connected with an input shaft of the first angle sensor;
the worm wheel is meshed with the worm part to form a worm and worm wheel transmission mechanism, the worm part is arranged at the bottom of the screw rod, the screw rod is arranged in the supporting inner cylinder of the supporting cylinder, the screw rod is sleeved with the lifting block, the lifting block and the screw rod are assembled in a screwing mode through threads, and one end of the lifting block penetrates through an elongated slot formed in the supporting cylinder and then is hinged with one end of the adjusting cylinder through a second rotating shaft;
the adjusting cylinder is internally provided with a hollow adjusting inner cylinder, the adjusting inner cylinder is assembled with one end of an adjusting rod, the other end of the adjusting rod is hinged with one end of a connecting plate through a third rotating shaft, and the other end of the connecting plate is assembled and fixed with the signal pot;
a supporting rod is fixed at the top of the supporting cylinder, the supporting rod is hinged with one end of the supporting column through a first rotating shaft, and the other end of the supporting column is assembled and fixed with the signal pot;
the inside of the signal pot is a paraboloid which is used for reflecting signals to the feed source, and the feed source is arranged on the focus of the signal pot and assembled with the signal pot through the supporting rod.
2. The multi-channel satellite group demodulation decoding apparatus as claimed in claim 1, wherein: the base is provided with a fixing hole, and the expansion bolt penetrates through the fixing hole to fix the base on the ground.
3. The multi-channel satellite group demodulation decoding apparatus as claimed in claim 1, wherein: the inner wall of the inner cavity is fixed with a limiting ring, the limiting ring is tightly attached to the top surface of the rotary table, the bottom surface of the rotary table is fixedly assembled with a seat ring of the thrust ball bearing, and a shaft ring of the thrust ball bearing is fixedly assembled with the partition plate.
4. The multi-channel satellite group demodulation decoding apparatus as claimed in claim 1, wherein: the bottom end surface is tightly pressed with a brake disc, the brake disc is fixedly assembled with one end of a third shaft body, and the other end of the third shaft body penetrates through a partition plate and then is assembled with an electromagnet; and a brake spring is arranged between the brake disc and the partition plate and used for providing a force for tightly pushing the bottom end face for the brake disc.
5. The multi-channel satellite group demodulation decoding apparatus as claimed in claim 1, wherein: the first motor and the second motor are both stepping motors, and signal ends of the stepping motors are in communication connection with the single chip microcomputer.
6. The multi-channel satellite group demodulation decoding apparatus as claimed in claim 1, wherein: the protective cover is provided with a mounting hole, the inner wall of the mounting hole is hermetically assembled with the outer wall of the supporting cylinder through a sealing ring, the supporting cylinder is provided with a positioning convex ring, the positioning convex ring is used for positioning the top surface of the inner side of the protective cover, the top surface of the inner cavity is fixedly provided with a moisture-conducting cylinder, and the interior of the moisture-conducting cylinder is a hollow moisture-conducting inner cylinder;
the moisture-conducting inner cylinder is internally provided with water-swellable rubber, the bottom of the water-swellable rubber is tightly attached to the first induction sheet, the first conducting sheet is arranged on the supporting cylinder, and a first conducting bulge is arranged on the end surface of the first conducting sheet facing the second conducting sheet;
the first conductive protrusion is opposite to the second conductive protrusion, the second conductive protrusion is fixed on the second conductive sheet, and the conductive sheet is arranged on the support cylinder;
the first conductive bulge is in conductive connection with the negative electrode of a 3V battery, the positive electrode of the battery is in series connection with a resistor and then is in communication connection with the signal end of the single chip microcomputer, and the signal end of the single chip microcomputer is in conductive connection with the second conductive bulge.
7. The multi-channel satellite group demodulation decoding apparatus as claimed in claim 6, wherein: the top of the moisture guide cylinder is provided with a flow guide inclined plane which is arranged downwards from the mounting hole to the moisture guide inner cylinder in an inclined way.
8. The multi-channel satellite group demodulation decoding apparatus as claimed in claim 6, wherein: the bolt penetrates through the adjusting cylinder and then tightly props against the side wall of the adjusting rod to fix the adjusting rod, and the bolt is assembled with the side wall of the adjusting cylinder in a threaded screwing mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128023 | 2019-02-21 | ||
| CN2019101280233 | 2019-02-21 |
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| Publication Number | Publication Date |
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| CN110970730A true CN110970730A (en) | 2020-04-07 |
| CN110970730B CN110970730B (en) | 2021-03-23 |
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| CN201911394408.0A Active CN110970730B (en) | 2019-02-21 | 2019-12-30 | Multichannel satellite group-path demodulation decoding equipment |
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| CN111786107A (en) * | 2020-07-30 | 2020-10-16 | 哈尔滨市三棵中药材市场太清参茸行 | Directional transmission data transmission signal equipment for communication |
| CN112563725A (en) * | 2020-12-10 | 2021-03-26 | 华兴通信技术有限公司 | Wireless microwave communication device |
| CN112688047A (en) * | 2020-12-14 | 2021-04-20 | 丽水思远信息技术有限公司 | Communication antenna based on electromagnetic transmission is automatic draws in |
| CN114614233A (en) * | 2022-05-11 | 2022-06-10 | 广东南方电信规划咨询设计院有限公司 | 5G communication signal acquisition and regulation device |
| CN115347363A (en) * | 2022-09-09 | 2022-11-15 | 国网湖北省电力有限公司 | Combined power grid antenna device |
| CN115514378A (en) * | 2022-11-22 | 2022-12-23 | 深圳市中科睿科技有限公司 | Broadcast signal receiving device |
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| CN112688047A (en) * | 2020-12-14 | 2021-04-20 | 丽水思远信息技术有限公司 | Communication antenna based on electromagnetic transmission is automatic draws in |
| CN112688047B (en) * | 2020-12-14 | 2024-05-17 | 深圳市正大信维通讯设备有限公司 | Communication antenna based on electromagnetic transmission automatic folding |
| CN114614233A (en) * | 2022-05-11 | 2022-06-10 | 广东南方电信规划咨询设计院有限公司 | 5G communication signal acquisition and regulation device |
| CN114614233B (en) * | 2022-05-11 | 2022-07-29 | 广东南方电信规划咨询设计院有限公司 | 5G communication signal acquisition and regulation device |
| CN115347363A (en) * | 2022-09-09 | 2022-11-15 | 国网湖北省电力有限公司 | Combined power grid antenna device |
| CN115347363B (en) * | 2022-09-09 | 2023-09-15 | 国网湖北省电力有限公司 | Combined type power grid antenna device |
| CN115514378A (en) * | 2022-11-22 | 2022-12-23 | 深圳市中科睿科技有限公司 | Broadcast signal receiving device |
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| CN110970730B (en) | 2021-03-23 |
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