CN111277318A - Wide-area-oriented aircraft emergency communication method and system - Google Patents
Wide-area-oriented aircraft emergency communication method and system Download PDFInfo
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- CN111277318A CN111277318A CN202010061147.7A CN202010061147A CN111277318A CN 111277318 A CN111277318 A CN 111277318A CN 202010061147 A CN202010061147 A CN 202010061147A CN 111277318 A CN111277318 A CN 111277318A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
- H04B7/18508—Communications with or from aircraft, i.e. aeronautical mobile service with satellite system used as relay, i.e. aeronautical mobile satellite service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a wide-area-range-oriented aircraft emergency communication method and system, wherein the method comprises the following steps: monitoring the communication state of the airplane and a control center of a tower in real time in the flying process of the airplane; if the communication state is monitored to be interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the airplane is established, wherein the island emergency communication equipment comprises an island satellite communication module and an island ultrashort wave communication module. According to the embodiment of the invention, when the airplane is in an emergency, the emergency communication between the airplane and the control center of the tower is realized, so that the control center of the tower can provide timely help for the airplane.
Description
Technical Field
The invention relates to the technical field of emergency communication, in particular to a wide-area-oriented aircraft emergency communication method and system.
Background
Currently, most aircraft are not equipped with satellite communication equipment, and only with ultrashort wave radio equipment. When the aircraft flies away from the coastline for a certain distance, the aircraft usually loses contact with the control center of the tower, and if the aircraft is in an emergency, the control center of the tower cannot provide timely help for the aircraft.
Disclosure of Invention
The embodiment of the invention aims to provide a wide-area-range-oriented aircraft emergency communication method and system, so that emergency communication between an aircraft and a control center of a tower can be realized when the aircraft is in a critical condition, and the control center of the tower can provide timely help for the aircraft.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a wide-area-oriented aircraft emergency communication method, including:
monitoring the communication state of the airplane and a control center of a tower in real time in the flying process of the airplane;
if the communication state is monitored to be interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the airplane is established, wherein the island emergency communication equipment comprises an island satellite communication module and an island ultrashort wave communication module.
As a specific embodiment of the present application, the control center of the tower comprises a satellite communication module of the tower, and satellite communication between the control center of the tower and the emergency communication equipment of the island is established through the satellite communication module of the tower and the satellite communication module of the island;
the aircraft is provided with an aircraft ultrashort wave communication module, and the ultrashort wave communication between the island emergency communication equipment and the aircraft is established through the aircraft ultrashort wave communication module and the island ultrashort wave communication module.
Further, the sea-island emergency communication device comprises a directional satellite antenna, and the emergency communication method further comprises:
monitoring the signal intensity between the airplane and the directional satellite antenna in real time in the emergency communication process;
if the signal intensity is lower than the threshold value, sending a control signal to a rotating device, so that the rotating device drives the directional satellite antenna to rotate according to the control signal;
wherein the rotating device is installed on the island and connected with the directional satellite antenna.
In a second aspect, an embodiment of the present invention provides a wide area-oriented emergency communication system, which includes a tower control center, an aircraft, a monitoring device installed on the aircraft, and a sea-island emergency communication device. In the flight process of the airplane, the monitoring equipment monitors the communication state of the airplane and a control center of a tower platform in real time;
if the communication state is monitored to be interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the airplane is established at the same time, wherein the island emergency communication equipment comprises an island satellite communication module and an island ultrashort wave communication module.
As a specific embodiment of the present application, the tower control center includes a tower satellite communication module, and the aircraft is mounted with an aircraft ultrashort wave communication module;
the island satellite communication module establishes satellite communication with the tower satellite communication module so as to realize communication between the island emergency communication equipment and the tower control center;
the island ultrashort wave communication module establishes ultrashort wave communication with the airplane ultrashort wave communication module so as to realize communication between the island emergency communication equipment and the airplane.
As a specific embodiment of the present application, the island emergency communication device includes a directional satellite antenna.
Further, the emergency communication system further comprises a rotating device installed on the island;
in the emergency communication process, the monitoring equipment monitors the signal intensity between the airplane and the directional satellite antenna in real time;
and if the signal intensity is lower than a threshold value, the monitoring equipment sends a control signal and transmits the control signal to a rotating device through the aircraft ultrashort wave communication module, so that the rotating device drives the directional satellite antenna to rotate according to the control signal.
As a specific implementation manner of this application, rotary device includes base, support column, actuating mechanism and revolving stage, support column and actuating mechanism install in the base, the revolving stage suit in the support column, directional satellite antenna install in the revolving stage, the actuating mechanism drive the revolving stage for support column and base rotate, thereby drive directional satellite antenna for the base rotates.
Further, the base includes bottom plate, telescopic machanism and mount table, telescopic machanism's one end with the bottom plate is connected, telescopic machanism's the other end with the lower surface of mount table is articulated, support column and actuating mechanism install in the upper surface of installing in.
Furthermore, telescopic machanism includes first branch, second branch, elastic component and locating part, first branch with the lower surface of mount table is articulated, second branch with the bottom plate is connected, the one end of elastic component install in inside the first branch, second branch suit in inside the first branch and with the other end of elastic component is connected, be equipped with a plurality of spacing holes on the first branch, work as the relative first branch of second branch is flexible the back, the locating part inserts arbitrary spacing hole.
Further, the driving mechanism comprises a motor and a gear shaft which are connected with each other, the motor is installed on the installation platform and connected with the gear shaft, and the motor drives the gear shaft to rotate so as to drive the rotary table to rotate.
By implementing the embodiment of the invention, the communication state between the airplane and the control center of the tower is monitored in real time in the flying process of the airplane, if the communication state is interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the airplane is established; namely, when the airplane is in an emergency situation, the embodiment of the invention realizes emergency communication between the airplane and the control center of the tower, so that the control center of the tower can provide timely help for the airplane.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic flow chart diagram of a wide-area-oriented aircraft emergency communication method provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a wide-area-oriented emergency communication system provided by an embodiment of the present invention;
FIG. 3 is a view of an angle of the rotating device;
FIG. 4 is a block diagram of another angle of the rotary device;
FIG. 5 is a block diagram of a further angle of the rotary device;
FIG. 6 is an enlarged view of portion A of FIG. 5;
fig. 7 is a sectional view of fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Referring to fig. 1, an embodiment of the present invention provides a wide-area-oriented aircraft emergency communication method. As shown in fig. 1, the emergency communication method may include the steps of:
s101, monitoring the communication state of the airplane and a control center of the tower in real time in the flying process of the airplane.
At present, an ultrashort wave communication module (such as an ultrashort wave antenna) is generally installed on an airplane, and under normal conditions, the communication with a control center of a tower platform can be always kept when the airplane flies. Meanwhile, the airplane is also provided with monitoring equipment for monitoring the communication state of the airplane and the control center of the tower in real time in the flying process of the airplane. If the communication state is monitored to be normal, other processing is not needed, and the monitoring is continued.
And S102, if the communication state is monitored to be interrupted, establishing satellite communication between the control center of the tower platform and the island emergency communication equipment.
S103, establishing ultrashort wave communication between the island emergency communication equipment and the airplane.
The island emergency communication equipment comprises an island satellite communication module and an island ultrashort wave communication module, and the tower control center comprises a tower satellite communication module. Step S102 specifically includes: and satellite communication between the control center of the tower and the emergency communication equipment in the island is established through the satellite communication module of the tower and the satellite communication module in the island.
The aircraft is provided with an aircraft ultrashort wave communication module, and the step S103 specifically comprises the following steps: and establishing the ultrashort wave communication between the island emergency communication equipment and the airplane through the airplane ultrashort wave communication module and the island ultrashort wave communication module.
It will be understood by those skilled in the art that after the sea island emergency communication device establishes satellite communication with the tower control center and ultrashort wave communication with the aircraft, respectively, the tower control center may make emergency communication with the aircraft.
Further, the island emergency communication device comprises a directional satellite antenna, and the emergency communication method further comprises:
monitoring the signal intensity between the airplane and the directional satellite antenna in real time in the emergency communication process;
if the signal intensity is lower than the threshold value, sending a control signal to a rotating device, so that the rotating device drives the directional satellite antenna to rotate according to the control signal;
wherein the rotating device is installed on the island and connected with the directional satellite antenna.
It should be noted that, in the emergency communication process, the monitoring device may monitor the signal strength between the aircraft and the island satellite module in real time, and if the signal strength is weak, the communication effect between the aircraft and the control center of the tower may be affected. The angle of the island satellite communication module (directional satellite antenna) towards the airplane is one of the factors affecting the signal strength. Therefore, the embodiment of the invention designs a rotating device which is arranged on an island and is connected with a directional satellite antenna. When the signal intensity is lower than the threshold value, the monitoring equipment sends a control signal to the rotating device through the aircraft ultrashort wave communication module, and the rotating device drives the directional satellite antenna to rotate according to the control signal, so that the aim of adjusting the signal intensity between the aircraft and the island satellite module is fulfilled. The specific structure of the rotating device will be described in detail in the following emergency communication system, and will not be described in detail here.
The aircraft emergency communication method facing the wide area range is implemented, the communication state of an aircraft and a control center of a tower is monitored in real time in the flight process of the aircraft, if the communication state is interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the aircraft is established; namely, when the airplane is in an emergency situation, the embodiment of the invention realizes emergency communication between the airplane and the control center of the tower, so that the control center of the tower can provide timely help for the airplane.
Based on the same inventive concept, the embodiment of the invention provides a wide-area-range-oriented emergency communication system. As shown in fig. 2, the emergency communication system includes a tower control center 10, an aircraft 20, aircraft-mounted monitoring equipment 30, and sea-island emergency communication equipment 40. Wherein, the control center 10 includes a control center 11, the aircraft 20 is further installed with an ultrashort wave communication module 21 (usually an ultrashort wave radio), and the island emergency communication device 40 includes an island satellite communication module 41 and an island ultrashort wave communication module 42. In this embodiment, the island satellite communication module 41 is a directional satellite antenna.
The monitoring device 30 is used for monitoring the communication state between the aircraft 20 and the control center 10 in real time during the flight of the aircraft.
If the communication state is monitored to be interrupted, the island satellite communication module 41 establishes satellite communication with the tower satellite communication module 11 to realize communication between the island emergency communication equipment 40 and the tower control center 10;
the island ultrashort wave communication module 42 establishes ultrashort wave communication with the aircraft ultrashort wave communication module 21 to enable communication between the island emergency communication device 40 and the aircraft 10.
Further, the emergency communication system further comprises a rotating device installed on the island;
during the emergency communication process, the monitoring device 30 monitors the signal strength between the aircraft 10 and the directional satellite antenna in real time;
if the signal strength is lower than the threshold value, the monitoring device 30 sends a control signal and transmits the control signal to a rotating device through the aircraft ultrashort wave communication module 11, so that the rotating device drives the directional satellite antenna to rotate according to the control signal.
Specifically, referring to fig. 3 to 7, the rotating device includes a base 51, a supporting column 52, a driving mechanism and a turntable 54, the supporting column 52 and the driving mechanism 53 are installed on the base 51, the turntable 51 is sleeved on the supporting column 52 through a bearing 55, the directional satellite antenna is installed on the turntable 54, and the driving mechanism drives the turntable 54 to rotate relative to the supporting column 52 and the base 51, so as to drive the directional satellite antenna to rotate relative to the base 54, thereby achieving the purpose of adjusting the angle and the signal intensity of the satellite antenna.
Further, the base 51 comprises a bottom plate 511, a telescopic mechanism 512 and a mounting table 513, one end of the telescopic mechanism 512 is connected with the bottom plate 511, the other end of the telescopic mechanism 512 is hinged with the lower surface of the mounting table 513, and the supporting column 52 and the driving mechanism are mounted on the upper surface. By adopting the mode that the telescopic mechanism 512 is hinged with the mounting table 513, when the rotating device is not needed, the telescopic mechanism 512 can be folded, thereby facilitating the storage of the whole rotating device and saving the storage space.
Further, the telescopic mechanism 512 comprises a first supporting rod 512a, a second supporting rod 512b, an elastic element 512c and a limiting element 512d, the first supporting rod 512a is hinged to the lower surface of the mounting table 512, the second supporting rod 512b is connected with the bottom plate 511, one end of the elastic element 512c is installed inside the first supporting rod 512a, the second supporting rod 512b is sleeved inside the first supporting rod 512a and connected with the other end of the elastic element 512c, a plurality of limiting holes are formed in the first supporting rod 512a, and when the second supporting rod 512b is telescopic relative to the first supporting rod 512c, the limiting element 512d is inserted into any limiting hole to fix the adjusted length. It should be noted that, since the base 51 includes the telescopic mechanism 512, the installation length of the whole rotating device can be adjusted at will, so that the rotating device can be applied to any terrain on the island. In the present embodiment, the elastic element 512c is embodied as a spring, and in other embodiments, the elastic element may be another elastic component, which is not limited in detail herein.
Further, the driving mechanism comprises a motor 53 and a gear shaft 56 which are connected with each other, the motor 53 is mounted on the mounting table 513 and is connected with the gear shaft 56, and the motor 53 drives the gear shaft 56 to rotate so as to drive the rotary table 54 to rotate. Those skilled in the art will appreciate that to effect driving of the turntable 54 by the gear shaft 54, both outer surfaces have gears.
It should be noted that the rotating device in this embodiment further includes a housing, which is disposed around the motor 53 and the gear shaft 56, etc., to play a role of waterproofing.
By implementing the embodiment of the invention, the communication state between the airplane and the control center of the tower is monitored in real time in the flying process of the airplane, if the communication state is interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the airplane is established; namely, when the airplane is in an emergency situation, the embodiment of the invention realizes emergency communication between the airplane and the control center of the tower, so that the control center of the tower can provide timely help for the airplane.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A wide-area-oriented aircraft emergency communication method, comprising:
monitoring the communication state of the airplane and a control center of a tower in real time in the flying process of the airplane;
if the communication state is monitored to be interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the airplane is established, wherein the island emergency communication equipment comprises an island satellite communication module and an island ultrashort wave communication module.
2. The emergency communication method of claim 1, wherein the control tower center comprises a control tower satellite communication module, and the control tower center is in satellite communication with the emergency communication equipment on the island through the control tower satellite communication module and the island satellite communication module;
the aircraft is provided with an aircraft ultrashort wave communication module, and the ultrashort wave communication between the island emergency communication equipment and the aircraft is established through the aircraft ultrashort wave communication module and the island ultrashort wave communication module.
3. The emergency communication method of claim 1 or 2, wherein the sea-island emergency communication device comprises a directional satellite antenna, the emergency communication method further comprising:
monitoring the signal intensity between the airplane and the directional satellite antenna in real time in the emergency communication process;
if the signal intensity is lower than the threshold value, sending a control signal to a rotating device, so that the rotating device drives the directional satellite antenna to rotate according to the control signal;
wherein the rotating device is installed on the island and connected with the directional satellite antenna.
4. A wide-area-range-oriented emergency communication system comprises a control center of a tower, an airplane, monitoring equipment installed on the airplane and island emergency communication equipment, and is characterized in that the monitoring equipment monitors the communication state of the airplane and the control center of the tower in real time in the flying process of the airplane;
if the communication state is monitored to be interrupted, satellite communication between the control center of the tower and island emergency communication equipment is established, and ultrashort wave communication between the island emergency communication equipment and the airplane is established at the same time, wherein the island emergency communication equipment comprises an island satellite communication module and an island ultrashort wave communication module.
5. The emergency communication system of claim 4, wherein the tower control center comprises a tower satellite communication module, the aircraft having an aircraft ultrashort wave communication module mounted thereon;
the island satellite communication module establishes satellite communication with the tower satellite communication module so as to realize communication between the island emergency communication equipment and the tower control center;
the island ultrashort wave communication module establishes ultrashort wave communication with the airplane ultrashort wave communication module so as to realize communication between the island emergency communication equipment and the airplane.
6. The emergency communication system of claim 5, wherein the island emergency communication device comprises a directional satellite antenna, the emergency communication system further comprising a rotating device installed on the island, the directional satellite antenna being installed on the rotating device;
in the emergency communication process, the monitoring equipment monitors the signal intensity between the airplane and the directional satellite antenna in real time;
and if the signal intensity is lower than a threshold value, the monitoring equipment sends a control signal and transmits the control signal to a rotating device through the aircraft ultrashort wave communication module, so that the rotating device drives the directional satellite antenna to rotate according to the control signal.
7. The emergency communication system of claim 6, wherein the rotating device comprises a base, a support column, a driving mechanism, and a turntable, wherein the support column and the driving mechanism are mounted on the base, the turntable is sleeved on the support column, the directional satellite antenna is mounted on the turntable, and the driving mechanism drives the turntable to rotate relative to the support column and the base, so as to drive the directional satellite antenna to rotate relative to the base.
8. The emergency communication system of claim 7, wherein the base comprises a base plate, a telescoping mechanism and a mounting platform, one end of the telescoping mechanism is connected to the base plate, the other end of the telescoping mechanism is hinged to a lower surface of the mounting platform, and the support post and the drive mechanism are mounted to the upper surface of the mounting platform.
9. The emergency communication system according to claim 8, wherein the telescopic mechanism includes a first rod, a second rod, an elastic member, and a position limiting member, the first rod is hinged to a lower surface of the mounting platform, the second rod is connected to the base plate, one end of the elastic member is mounted inside the first rod, the second rod is sleeved inside the first rod and connected to the other end of the elastic member, the first rod is provided with a plurality of position limiting holes, and the position limiting member is inserted into any one of the position limiting holes after the second rod is extended relative to the first rod.
10. The emergency communication system of any one of claims 7 to 9, wherein the driving mechanism comprises a motor and a gear shaft connected to each other, the motor being mounted to the mounting table and connected to the gear shaft, the motor driving the gear shaft to rotate and thereby rotating the turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061147.7A CN111277318A (en) | 2020-01-19 | 2020-01-19 | Wide-area-oriented aircraft emergency communication method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010061147.7A CN111277318A (en) | 2020-01-19 | 2020-01-19 | Wide-area-oriented aircraft emergency communication method and system |
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| Publication Number | Publication Date |
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| CN111277318A true CN111277318A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010061147.7A Pending CN111277318A (en) | 2020-01-19 | 2020-01-19 | Wide-area-oriented aircraft emergency communication method and system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202424705U (en) * | 2011-12-12 | 2012-09-05 | 中国人民解放军92859部队 | Maritime security platform terminal based on BeiDou satellite |
| US20140004791A1 (en) * | 2011-03-11 | 2014-01-02 | DEUTSCHES ZENTRUM FüR LUFT-UND RAUMFAHRT E.V. | Satellite having a plurality of directional antennas for transmitting and/or receiving air-traffic control radio signals |
| CN205372001U (en) * | 2015-12-15 | 2016-07-06 | 重庆触视科技有限公司 | It is open -air with projecting apparatus that has expansion bracket |
| CN205429165U (en) * | 2015-12-16 | 2016-08-03 | 北京航天福道高技术股份有限公司 | A rotary device for satellite antenna |
| CN107852226A (en) * | 2015-07-16 | 2018-03-27 | 格梦空间股份有限公司 | Low earth-orbit satellite for air traffic control |
| CN208208966U (en) * | 2018-04-19 | 2018-12-07 | 深圳市华讯方舟空间信息产业科技有限公司 | Satellite antenna and pedestal |
-
2020
- 2020-01-19 CN CN202010061147.7A patent/CN111277318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140004791A1 (en) * | 2011-03-11 | 2014-01-02 | DEUTSCHES ZENTRUM FüR LUFT-UND RAUMFAHRT E.V. | Satellite having a plurality of directional antennas for transmitting and/or receiving air-traffic control radio signals |
| CN202424705U (en) * | 2011-12-12 | 2012-09-05 | 中国人民解放军92859部队 | Maritime security platform terminal based on BeiDou satellite |
| CN107852226A (en) * | 2015-07-16 | 2018-03-27 | 格梦空间股份有限公司 | Low earth-orbit satellite for air traffic control |
| CN205372001U (en) * | 2015-12-15 | 2016-07-06 | 重庆触视科技有限公司 | It is open -air with projecting apparatus that has expansion bracket |
| CN205429165U (en) * | 2015-12-16 | 2016-08-03 | 北京航天福道高技术股份有限公司 | A rotary device for satellite antenna |
| CN208208966U (en) * | 2018-04-19 | 2018-12-07 | 深圳市华讯方舟空间信息产业科技有限公司 | Satellite antenna and pedestal |
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Application publication date: 20200612 |