CN210609177U - Unmanned aerial vehicle communication system, unmanned aerial vehicle roaming base station and remote terminal equipment station - Google Patents
Unmanned aerial vehicle communication system, unmanned aerial vehicle roaming base station and remote terminal equipment station Download PDFInfo
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- CN210609177U CN210609177U CN201922370818.3U CN201922370818U CN210609177U CN 210609177 U CN210609177 U CN 210609177U CN 201922370818 U CN201922370818 U CN 201922370818U CN 210609177 U CN210609177 U CN 210609177U
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Abstract
The application relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle communication system, an unmanned aerial vehicle roaming base station and a remote equipment station. The unmanned aerial vehicle communication system comprises an antenna; and a picture transmission receiving end in communication connection with the antenna through a feeder line; and a ground control station connected with the image transmission receiving terminal through a network; the distance from the image transmission receiving end to the ground control station is larger than the distance from the image transmission receiving end to the antenna. The unmanned aerial vehicle roaming base station comprises a plurality of communication base stations, and the distance between two adjacent communication base stations is smaller than or equal to the communication distance transmitted by the unmanned aerial vehicle. The remote equipment station is used for being connected with a ground control station through a network, comprises a picture transmission receiving end connected with an antenna through a feeder interface, and is also connected with the ground control station through a network interface. The problems of overlarge signal attenuation, poor signal quality, high cost, difficulty in wiring and installation, inconvenience in maintenance and the like caused by overlong feeder lines are solved. The unmanned aerial vehicle roaming base station also solves the problem of limitation of communication distance of image transmission.
Description
Technical Field
The application relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle communication system, an unmanned aerial vehicle roaming base station and a remote equipment station.
Background
At present, in unmanned aerial vehicle uses, the picture passes, the data transmission has become the core component among the unmanned aerial vehicle, especially in the unmanned aerial vehicle of application such as security protection, patrol and examine, as shown in fig. 1, general receiving terminal A equipment can be integrated to the ground control platform, unmanned aerial vehicle passes through the wireless link transmission of airborne transmitting terminal B with image data, receiving terminal equipment receives this image data, operating personnel directly controls at the ground control platform can control unmanned aerial vehicle and observe unmanned aerial vehicle's orbit image. The receiving end equipment, the console and the antenna b are connected through a radio frequency coaxial cable (or called a feeder a) to transmit signals.
In some specific scenes, such as cities with high buildings standing, in order to prevent the antenna signals from being blocked by obstacles and affecting the use, the antenna frame needs to be elevated, for example, the antenna frame is arranged on the roof with a certain height, which is the choice of most users, and a transmission antenna or a data transmission antenna is arranged on the roof, so that the antenna has enough sight distance, and the blocking of the obstacles in the cities to the wireless signals can be reduced. Simultaneously more convenient is, unmanned aerial vehicle can select the roof in the city to take off and land, takes the roof as unmanned aerial vehicle's platform that takes off and land. However, if the antenna is elevated and the feeder connection between the antenna and the device is still selected, this will result in a long feeder of the antenna, and the longer the feeder, the greater the signal attenuation, the poorer the signal quality, the shorter the operable distance, and the higher the cost, and the more expensive the cable with the smaller attenuation strength, the higher the cost, and the longer the feeder, the more difficult the installation of the wiring, and the inconvenient the maintenance. For example, if the device is used in a city, the height of the antenna is required to be 50 meters, the connection form of the feeder line far is hardly realized or the signal transmission effect is poor, firstly, three feeder lines of 50 meters are expensive, secondly, the feeder lines of 50 meters have great signal attenuation (different wire attenuation, RG316 is about 1dB, RG142 is about 0.5dB, and LMR400 is about 0.2dB), and then, the wiring of three cables of 50 meters is difficult. Even if the antenna is connected by the feeder line even if the distance from the receiving end is hundreds of meters or even thousands of meters, the user requirements cannot be met.
SUMMERY OF THE UTILITY MODEL
The application provides an unmanned aerial vehicle communication system, unmanned aerial vehicle roam basic station and distal end equipment station to solve because the antenna boom is high, lead to the antenna and the receiving terminal be connected the feeder overlength, and the signal attenuation that arouses is too big, signal quality is relatively poor, the cost is higher, wiring installation difficulty, maintain inconvenient scheduling problem.
This application first aspect provides an unmanned aerial vehicle communication system, includes:
an antenna; and
the image transmission receiving end is in communication connection with the antenna through a feeder line and receives image data and communication data transmitted by the unmanned aerial vehicle; and
the ground control station is connected with the image transmission receiving end through a network and receives the image data and the communication data transmitted by the image transmission receiving end;
the distance from the image transmission receiving end to the ground control station is larger than the distance from the image transmission receiving end to the antenna.
Compared with the prior art, the distance from the image transmission receiving end to the ground control station of the unmanned aerial vehicle communication system provided by the application is larger than the distance from the image transmission receiving end to the antenna, the antenna erected at the top of a high-rise building, a tower and the like and the image transmission receiving end relatively adjacent to the antenna are in communication connection through the feeder, and the image transmission receiving end is in network connection with the ground control station positioned at the far end, so that the feeder can select the feeder with shorter length, the adjacent antenna is in communication connection with the image transmission receiving end only by the feeder, and the image transmission receiving end and the ground control station positioned at the far end can be connected in a network extension mode or a local area network mode, thereby solving the problems of overlarge signal attenuation, poor signal quality, higher cost, difficult wiring and installation and inconvenient maintenance caused by overlong feeder, and greatly reducing the attenuation of signals on the feeder, the signal quality is ensured, and the cost is saved.
Further, unmanned aerial vehicle communication system still includes:
an RTK antenna; and
an RTK reference station in communication connection with the RTK antenna through a feeder line, and also in network connection with the ground control station,
the distance from the RTK base station to the ground control station is greater than the distance from the RTK base station to the RTK antenna.
The RTK reference station utilizes an RTK carrier phase difference technology, improves the positioning precision and greatly improves the operation efficiency.
Further, unmanned aerial vehicle communication system still includes:
a network switching module in communication connection with the map transmitter and the RTK reference station respectively, and also in network connection with the ground control station,
the image data and the communication data transmitted by the image transmission receiving end are received, the RTK data transmitted by the RTK reference station is received, and the image data, the communication data and the RTK data are combined and transmitted to the ground control station.
The network switching module can combine the image data, the communication data and the RTK data and transmit the combined image data, the communication data and the RTK data to the ground control station through a network cable or a network interface, so that network connection links and interfaces are further saved, the network switching module is convenient to connect and is not easy to be mixed with other lines.
Further, the graph transmission receiving end, the RTK reference station and the network switching module are integrated into a remote equipment station; or
The antenna, the image transmission receiving end, the RTK base station, the RTK antenna and the network switching module are integrated into a remote equipment station.
After the components are integrated, the portable multifunctional integrated machine is more convenient to carry and use, improves the space utilization rate, reduces the whole volume of the equipment as much as possible, and can be independently packaged and sold.
Further, the network connection is through an Ethernet connection,
and the image transmission receiving end is in communication connection with the network switching module through the Ethernet.
Compared with other local area networks, the Ethernet has the advantages that the connection of the physical layer, the electronic signal, the content of the medium access layer protocol and the like are more standard, the application is more common and wide, the matching is better, and the use is convenient.
Further, the far-end equipment station adopts POE net gape to connect, adopts POE power module power supply simultaneously.
The mode that adopts POE power supply unit and POE net gape to connect can solve the problem of network connection and power supply simultaneously, and convenient simple easy operation, and improve equipment availability factor. In addition, the mode only needs to connect the remote equipment station with the network port in the special equipment station through the network cable, and the power supply and the network signal line can be combined into one network cable, so that the number of cables can be saved, the maintenance is convenient, and the failure rate is reduced.
Furthermore, the POE power supply module comprises a POE current collector and a POE power supply device for supplying power to the POE current collector,
the network switching module is in communication connection with the POE current collector through the Ethernet, the POE current collector is connected with the POE power supply equipment through a network cable, and the POE power supply equipment is in communication connection with the ground control station through the Ethernet;
the graph transmission receiving end is connected with the network switching module in a power-on mode, and the network switching module and the RTK reference station are respectively connected with the POE current collector in a power-on mode.
The specific connection mode can ensure that the POE network connection is smooth and the POE power supply is normally carried out, and the connection is convenient and simple.
Furthermore, the POE power supply device and the ground control station are integrated into a ground receiving station; and/or
And the POE current collector is integrated and arranged in the remote equipment station.
The integrated structure is convenient to carry and connect, and has small integral volume and small occupied space.
Further, the RTK base station transmits the RTK data to the network switching module through a serial port.
The communication line is simple, and bidirectional communication can be realized by only one pair of transmission lines (the telephone line can be directly used as the transmission line), so that the cost is greatly reduced, and the communication line is particularly suitable for remote communication.
Further, the antenna adopts an omnidirectional antenna and/or a directional antenna.
The omnidirectional antenna shows that the antenna radiates uniformly at 360 degrees on a horizontal directional diagram, namely, the omnidirectional antenna shows that a beam with a certain width is shown on a vertical directional diagram, and generally, the smaller the lobe width is, the larger the gain is, and the larger the coverage area is. A directional antenna is an antenna that emits and receives electromagnetic waves in one or more specific directions with a high intensity, and emits and receives electromagnetic waves in other directions with a null or minimum intensity. The directional transmitting antenna is adopted to increase the effective utilization rate of the radiation power, increase the confidentiality, enhance the signal strength and increase the anti-interference capability.
The utility model provides an unmanned aerial vehicle roaming base station, including a plurality of communication base stations, every the communication base station includes aforementioned any one the antenna with picture biography receiving terminal, and adjacent two communication base station's distance is for being less than or equal to the communication distance of unmanned aerial vehicle transmission.
By the arrangement mode of the roaming base station, the problem of limitation of communication distance of map transmission can be solved on the basis of solving the problem caused by overlong feeder line.
A third aspect of the present application provides a remote device station for network connection with a ground control station, comprising:
the image transmission receiving end is connected with the antenna through a feeder interface, receives image data and communication data transmitted by the unmanned aerial vehicle, is connected with the ground control station through a network interface, and transmits the received image data and the received communication data to the ground control station.
The remote equipment station can be independently configured and used, can be arranged close to the antenna, reduces signal attenuation loss, and is convenient to carry and install.
Further, the remote device station further includes:
the RTK base station is connected with the RTK antenna through a feeder interface; and
the network switching module is respectively connected with the graph transmission receiving end and the RTK reference station network;
and the network switching module is connected with the ground control station through a network.
By utilizing an RTK carrier phase difference technology, the positioning precision is improved, and the operation efficiency is greatly improved; and the network switching module can transmit the image data, the communication data and the RTK data to the ground control station in a unified way, so that network connection links and interfaces are saved, the connection is also convenient, and the data are not easy to be mixed with other circuits.
Furthermore, the network switching module realizes the network connection with the ground control station through a POE gateway; the POE network port comprises: a POE transmission unit and a data transmission unit; the POE transmission unit is in communication connection with the ground control station, and the data transmission unit is in communication connection with the network switching module.
The POE net mouth can transmit data signals and direct current, wherein the POE transmission unit and the ground control station transmit the data signals, and the data transmission unit is connected with the network exchange module in a communication mode to transmit internal data signals. The remote equipment station can be a POE power supply end and a POE power receiving end.
Furthermore, the remote equipment station is a POE power receiving end;
the POE network port further comprises: a power supply output unit;
the power supply output unit is connected with POE power supply equipment to receive electric energy from the POE power supply equipment; the power supply output unit is respectively connected with the network switching module and the RTK reference station in a power-on manner, and the network switching module is connected with the image transmission receiving end in a power-on manner;
the POE power supply equipment is communicated with the ground control station, or the POE power supply equipment and the ground control station are integrated into a whole to be a ground receiving station.
The mode that adopts POE net gape to connect can solve the problem of far-end equipment station network connection and power supply simultaneously, and convenient simple easy operation, and improve equipment availability factor.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle communication system according to an embodiment of the prior art.
Fig. 2 is a schematic structural diagram of an unmanned aerial vehicle communication system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an unmanned aerial vehicle communication system according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a power supply method according to an embodiment of the present application;
fig. 5 is a schematic view of an application scenario of the communication system of the unmanned aerial vehicle according to the embodiment of the present application;
fig. 6 is a schematic structural diagram of an unmanned aerial vehicle communication system according to another embodiment of the present application;
fig. 7 is a schematic structural diagram of an unmanned aerial vehicle roaming base station provided in an embodiment of the present application.
Reference numerals:
1-unmanned aerial vehicle communication system;
11-an antenna;
12-an RTK antenna;
21-a feeder line;
30-a remote equipment station;
31-picture transmission receiving end;
32-an RTK reference station;
33-a network switching module;
34-POE current collector;
341-POE transmission unit;
342-a power supply output unit;
343-a data transmission unit;
40-a ground receiving station;
41-ground control station;
42-POE power supply equipment;
51-mesh wire;
52-local area network;
60-a dedicated equipment station;
communication base station No. 201-1;
202-2 communication base station;
203-3 communication base station;
3-unmanned aerial vehicle;
4-certain office building.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 2, the present embodiment provides an unmanned aerial vehicle communication system 1, which includes an antenna 11 that can be erected at a high place, such as a roof, a tower, etc., which can meet the height of a line of sight, where the antenna 11 may specifically be a pattern transmission antenna; and picture that set up adjacent to the aerial 11, and communicate with the aerial 11 and connect through the feeder 21 with the receiving end 31 of the picture, the receiving end 31 of the picture is used for receiving the image data and communication data that the unmanned aerial vehicle 3 launches, the feeder is also called the coaxial cable of radio frequency, play a role in transmitting the signal, transmit the signal that the aerial receives to the user end through it; the system further comprises a ground control station 41 which is arranged far away from the antenna 11 and the image transmission receiving terminal 31, the ground control station 41 can be arranged in a control room in a building, the ground station and the like, the ground control station 41 is in network connection with the image transmission receiving terminal 31, specifically, the ground control station can be directly connected through a network cable 51, the ground control station 41 receives image data and communication data transmitted by the image transmission receiving terminal 31, and the distance from the image transmission receiving terminal 31 to the ground control station 41 is greater than the distance from the image transmission receiving terminal 31 to the antenna 11. The network connection may be specifically through a local area network 52 in a building or the like, and the local area network 52 may be specifically an ethernet (e.g., ETH), and compared with other local area networks, the ethernet has more standardized connection of a physical layer, more standardized content of electronic signals, and more standardized content of a media access layer protocol, and is more generally and widely applied, and better matched and convenient to use.
Compared with the prior art, the distance from the image transmission receiving end to the ground control station of the unmanned aerial vehicle communication system provided by the embodiment of the application is greater than the distance from the image transmission receiving end to the antenna, the antenna erected at the top of a high-rise building, a tower and the like and the image transmission receiving end relatively adjacent to the antenna are in communication connection through the feeder, and the image transmission receiving end is in network connection with the ground control station positioned at the far end, so that the feeder can select the feeder with shorter length, the adjacent antenna is in communication connection with the image transmission receiving end only by the feeder, and the image transmission receiving end and the ground control station positioned at the far end can be connected in a network extension mode or a local area network mode, so that the problems of overlarge signal attenuation, poor signal quality, higher cost, difficult wiring installation and inconvenient maintenance caused by the excessively long feeder are solved, and the attenuation of the signal on the feeder is greatly reduced, the signal quality is ensured, and the cost is saved.
Further, as shown in fig. 3, the unmanned aerial vehicle communication system 1 may further include an RTK (Real-time kinematic) antenna 12 also erected at a ceiling, a tower, or the like, and an RTK reference station 32 disposed adjacent to the RTK antenna 12 and communicatively connected to the RTK antenna 12 via a feeder 21, wherein a distance from the RTK reference station 32 to the ground control station 41 is greater than a distance from the RTK reference station 32 to the RTK antenna 12. The reference station 32 is a differential method for processing the observed quantity of the carrier phase of the measuring station in Real time by using a Real-time kinematic (RTK) carrier phase differential technology, and is a GPS positioning technology for sending the carrier phase acquired by the RTK reference station to a user receiving end to solve a difference coordinate.
The RTK reference station 32 in the foregoing embodiment may be in direct communication with the ground control station 41, as shown in fig. 3, or in any other manner: a network switching module 33 may be disposed adjacent to the image transceiver 31 and the RTK reference station 32, the network switching module 33 is respectively connected to the image transceiver 31 and the RTK reference station 32 in an interface communication manner, and is further connected to the ground control station 41 in a network manner, specifically, may be connected via a network cable 51, the network switching module 33 is configured to receive the image data and the communication data transmitted by the image transceiver 31 and receive the RTK data transmitted by the RTK reference station 32, and combine the image data, the communication data and the RTK data and transmit the combined data to the ground control station 41 via the network cable 51 or a network interface, so as to further save network connection links and interfaces, facilitate connection, and is not easily mixed with other lines.
Further, the aforementioned map-passing receiving terminal 31, the RTK reference station 32 and the network switching module 33 may be integrally processed as a single module, which may be referred to as a remote device station 30. Alternatively, the aforementioned antenna 11, the map transmission receiving terminal 31, the RTK reference station 32, the RTK antenna 12 and the network switching module 33 are integrated into the remote equipment station 30. More convenient carrying and use like this, still improve space utilization, reduce equipment overall size as far as, still can carry out independent packing and sell etc.. The interfaces between the aforementioned map receiving terminal 31 and the RTK reference station 32 may specifically adopt SMA interfaces, and the SMA interfaces may be connected to the feeder line 21 through N connectors. The RTK reference station 32 can transmit RTK data to the network switching module 33 through a serial port (short for serial interface), that is, a serial communication interface, and is characterized in that a communication line is simple, and bidirectional communication (a telephone line can be directly used as a transmission line) can be realized by only one pair of transmission lines, so that the cost is greatly reduced, and the RTK reference station is particularly suitable for remote communication.
A specific embodiment is that a certain office organization needs the unmanned aerial vehicle to regularly patrol and examine in a specific area, requires that the flight radius is 10km, and operating personnel is at indoor control center, and control center can show the image that unmanned aerial vehicle gathered and control unmanned aerial vehicle in real time. The inspection area is located in an urban area, and in order to meet the requirement of a flight radius of 10km, the antenna must be elevated to a height of 30m, otherwise, the inspection task of the flight radius of 10km cannot be met in the urban area, and the image transmission is influenced by urban buildings, so that the transmission distance cannot reach 10 km. The total floor height of an office building of a certain office mechanism is 12 layers, the total height is 39.6m, the roof is an ideal antenna erection point, and the roof can be used as an unmanned aerial vehicle lifting platform.
From the above, as shown in fig. 3 to 6, the unmanned aerial vehicle communication system 1 provided in the embodiment of the present application may be adopted, the antenna 11 may be erected on a roof of an office building 4, specifically, two pattern transmission antennas and one RTK antenna 12 may be erected, and the remote device station 30 may also be installed on the roof, and the roof may also be used as an unmanned aerial vehicle landing platform. And a special equipment station 60 with 220V commercial power and a network interface of the in-building local area network 52 is also arranged in the roof.
Preferentially, this application embodiment preferentially adopts POE net gape to connect, adopts POE power supply mode to supply power for distal end equipment station 30 simultaneously, adopts POE power supply unit and POE net gape connected's mode, can solve the problem of internet access and power supply simultaneously, and convenient simple easy operation, and improve equipment availability factor. In this way, the remote device station 30 can be connected to the internet access of the special device station 60 through the internet cable, and the power and the network signal line can be combined into one internet cable, so that the number of cables can be saved, and the special device station 60 and the remote device station 30 can be connected through only one internet cable, so that the maintenance is facilitated, the failure rate is reduced, and the POE power supply device can be disposed in the special device station, the power supply device in fig. 6 includes a drawing receiving end 31, an RTK reference station 32, a network switching module 33, and the like, specifically, as shown in fig. 3, the POE power supply module can include a POE power receiver 34 and a POE power supply device 42 for supplying power to the POE power receiver 34, the POE power supply device 42 can be integrated with the ground control station 42 into a module, which can be referred to as a ground receiving station 40, the POE power receiver can be integrated in the remote device station 30, the integrated structure is convenient to carry and connect, and has small integral volume and small occupied space. During specific connection, this picture passes receiving terminal 31 and can be connected with network switching module 33 communication through ethernet, this network switching module 33 passes through ethernet and is connected with POE current-collector 34 communication, POE current-collector 34 passes through net twine 51 or local area network 52 and is connected with POE power supply unit 42, POE power supply unit 42 passes through ethernet and is connected with ground control station 30 communication, picture passes receiving terminal 31 and network switching module 33 circular telegram and links to each other, network switching module 33 and RTK reference station 32 are continuous with POE current-collector 34 circular telegram respectively, this POE power supply unit 42 exports the electric energy and gives POE current-collector 34, POE current-collector 34 exports the electric energy and gives network switching module 33 and RTK reference station 32, network switching module 33 exports the electric energy in picture passes receiving terminal, above-mentioned circular telegram connection specifically can adopt 12V input voltage. The specific connection mode can ensure that the POE network connection is smooth and the POE power supply is normally carried out, and the connection is convenient and simple. Moreover, the voltage input end of the POE current collector can be connected with the waterproof network port connector, so that the power-on connection safety of the POE current collector is guaranteed.
Specifically, the POE gateway may include: a POE transmission unit 341, a power supply output unit 342, and a data transmission unit 343; the POE transmission unit 341 is connected to the ground control station, the data transmission unit 343 is communicatively connected to the network switching module 33, the power supply output unit 342 is electrically connected to the network switching module 33 and the RTK reference station 32, respectively, and the network switching module 33 is electrically connected to the map transmission receiving terminal 32.
In addition, as shown in fig. 4, the remote device station may use a direct current power supply (12-24 VDC) to directly supply power in addition to the POE power supply device, and the output of the direct current power supply may have two modes, one is AC to DC, and the other is a battery. The batteries are not easy to maintain when in use, the batteries need to be replaced periodically, and the AC-to-DC mode can only be suitable for places with 220V commercial power.
Then, after the remote equipment station 30 in the foregoing embodiment is erected, the remote equipment station 30 has already accessed to the local area network 52 network inside the building, the equipment of the ground receiving station 40 may be installed in a command center inside the building, the ground receiving station 40 only needs to access a network port to the local area network 52 network interface of the command center inside the building, the remote equipment station 30 and the ground receiving station 40 are interconnected through the local area network 52, a controller can directly control the unmanned aerial vehicle 3 at the command center, and the ground receiving station 40 at the control center can watch the video image returned by the unmanned aerial vehicle 3.
The antenna 11 in the foregoing embodiment may specifically adopt an omnidirectional antenna and/or a directional antenna, where the omnidirectional antenna shows a 360 ° uniform radiation in a horizontal directional pattern, that is, a non-directional antenna, and shows a beam with a certain width in a vertical directional pattern, and generally, the smaller the lobe width, the larger the gain, and the larger the coverage. A directional antenna is an antenna that emits and receives electromagnetic waves in one or more specific directions with a high intensity, and emits and receives electromagnetic waves in other directions with a null or minimum intensity. The directional transmitting antenna is adopted to increase the effective utilization rate of the radiation power, increase the confidentiality, enhance the signal strength and increase the anti-interference capability.
The embodiment of the application further provides an unmanned aerial vehicle roaming base station, which comprises a plurality of communication base stations, each communication base station comprises the remote equipment station 30, and the distance between two adjacent communication base stations is less than or equal to the communication distance transmitted by the unmanned aerial vehicle 3. As shown in fig. 7, for a specific embodiment, a communication distance is 30km, an operation distance of the drone is 90km, so that specifically, 3 communication base stations may be provided, which are a communication base station 201 No. 1, a communication base station 202 No. 2, and a communication base station 203 No. 3, a distance between two adjacent communication base stations is 30km, the drone 3 automatically switches to select connection with a nearby communication base station by determining signal strength of the transmitting terminal and the communication base station, for example, when the signal strength of the communication base station 201 No. 1 and the signal strength of the drone 3 are earliest, that is, when the drone 3 is closest to the communication base station 201 No. 1, the transmitting terminal automatically selects connection with the communication base station No. 1. By the arrangement mode of the roaming base station, the problem of limitation of communication distance of map transmission can be solved on the basis of solving the problem caused by overlong feeder line.
The embodiment of the present application further provides a remote device station 30, configured to be in network connection with a ground control station 41, including an image transmission receiving end 31 connected to an antenna 11 through a feeder interface, where the image transmission receiving end receives image data and communication data transmitted by an unmanned aerial vehicle 3, and is connected to the ground control station 41 through a network interface, and transmits the received image data and communication data to the ground control station 41. The remote equipment station can be independently configured and used, can be arranged close to the antenna, reduces signal attenuation loss, and is convenient to carry and install. Furthermore, the remote equipment station can also comprise the antenna 11, the antenna is integrated into the remote equipment station, the independence and the functionality of the equipment are further improved, the signal transmission attenuation of the antenna and the image transmission receiving end is further reduced, the signal transmission quality is improved, and the maintenance is convenient.
Further, the remote device station 30 may further include an RTK reference station 32 connected to the RTK antenna 12 through a feeder interface, and a network switching module 33 respectively network-connected to the map receiving terminal 31 and the RTK reference station 32, and the network switching module 33 is network-connected to the ground control station 41. By utilizing an RTK carrier phase difference technology, the positioning precision is improved, and the operation efficiency is greatly improved; and the network switching module can transmit the image data, the communication data and the RTK data to the ground control station in a unified way, so that network connection links and interfaces are saved, the connection is also convenient, and the data are not easy to be mixed with other circuits. Furthermore, the network switching module 31 is connected to a POE network port, the image transmission receiving terminal 31 is electrically connected to the network switching module 33, and the network switching module and the RTK reference station are connected to a POE power interface. The mode that adopts POE power supply unit and POE net gape to connect can solve the problem of network connection and power supply simultaneously, and convenient simple easy operation, and improve equipment availability factor.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (15)
1. An unmanned aerial vehicle communication system, comprising:
an antenna; and
the image transmission receiving end is in communication connection with the antenna through a feeder line and receives image data and communication data transmitted by the unmanned aerial vehicle; and
the ground control station is connected with the image transmission receiving end through a network and receives the image data and the communication data transmitted by the image transmission receiving end;
the distance from the image transmission receiving end to the ground control station is larger than the distance from the image transmission receiving end to the antenna.
2. The drone communication system of claim 1, further comprising:
an RTK antenna; and
an RTK reference station in communication connection with the RTK antenna through a feeder line, and also in network connection with the ground control station,
the distance from the RTK base station to the ground control station is greater than the distance from the RTK base station to the RTK antenna.
3. The drone communication system of claim 2, further comprising:
and the network switching module is in communication connection with the image transmission receiving end and the RTK base station respectively, is also in network connection with the ground control station, and is used for receiving the image data and the communication data transmitted by the image transmission receiving end, receiving the RTK data transmitted by the RTK base station, and combining and transmitting the image data, the communication data and the RTK data to the ground control station.
4. The UAV communication system of claim 3,
the graph transmission receiving end, the RTK reference station and the network switching module are integrated into a remote equipment station; or
The antenna, the image transmission receiving end, the RTK base station, the RTK antenna and the network switching module are integrated into a remote equipment station.
5. The UAV communication system of claim 4,
the network connection is through an ethernet connection,
and the image transmission receiving end is in communication connection with the network switching module through the Ethernet.
6. The UAV communication system of claim 5,
the remote equipment station is connected through a POE network port, and simultaneously, the POE power supply module is used for supplying power.
7. The UAV communication system of claim 6,
the POE power supply module comprises a POE current collector and POE power supply equipment for supplying power to the POE current collector,
the network switching module is in communication connection with the POE current collector through the Ethernet, the POE current collector is connected with the POE power supply equipment through a network cable, and the POE power supply equipment is in communication connection with the ground control station through the Ethernet;
the image transmission receiving end is connected with the network switching module in a power-on mode, and the network switching module and the RTK reference station are respectively connected with the POE current collector in a power-on mode.
8. The drone communication system of claim 7,
the POE power supply equipment and the ground control station are integrated into a ground receiving station; and/or
And the POE current collector is integrated and arranged in the remote equipment station.
9. The UAV communication system of claim 3,
and the RTK base station transmits the RTK data to the network switching module through a serial port.
10. The drone communication system of claim 1,
the antenna adopts an omnidirectional antenna and/or a directional antenna.
11. An unmanned aerial vehicle roaming base station, characterized in that, it includes a plurality of communication base stations, each of which includes the antenna of any one of claims 1-9 and the map transmission receiving end, and the distance between two adjacent communication base stations is less than or equal to the communication distance transmitted by the unmanned aerial vehicle.
12. A remote equipment station for network connection to a ground control station, comprising:
the image transmission receiving end is connected with the antenna through a feeder interface, receives image data and communication data transmitted by the unmanned aerial vehicle, is connected with the ground control station through a network interface, and transmits the received image data and the received communication data to the ground control station.
13. The remote equipment station of claim 12, further comprising:
the RTK base station is connected with the RTK antenna through a feeder interface; and
the network switching module is respectively connected with the graph transmission receiving end and the RTK reference station network;
and the network switching module is connected with the ground control station through a network.
14. The remote equipment station of claim 13,
the network switching module is connected with the ground control station through a POE network port to realize the network connection; the POE network port comprises: a POE transmission unit and a data transmission unit; the POE transmission unit is in communication connection with the ground control station, and the data transmission unit is in communication connection with the network switching module.
15. The remote equipment station of claim 14,
the remote equipment station is a POE receiving end;
the POE network port further comprises: a power supply output unit;
the power supply output unit is connected with POE power supply equipment to receive electric energy from the POE power supply equipment; the power supply output unit is respectively connected with the network switching module and the RTK reference station in a power-on manner, and the network switching module is connected with the image transmission receiving end in a power-on manner;
the POE power supply equipment is communicated with the ground control station, or the POE power supply equipment and the ground control station are integrated into a whole to be a ground receiving station.
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| CN201922370818.3U CN210609177U (en) | 2019-12-25 | 2019-12-25 | Unmanned aerial vehicle communication system, unmanned aerial vehicle roaming base station and remote terminal equipment station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114740704A (en) * | 2022-04-25 | 2022-07-12 | 上海沃兰特航空技术有限责任公司 | Redundant ground station remote control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114740704A (en) * | 2022-04-25 | 2022-07-12 | 上海沃兰特航空技术有限责任公司 | Redundant ground station remote control system |
| CN114740704B (en) * | 2022-04-25 | 2024-04-26 | 上海沃兰特航空技术有限责任公司 | Redundant ground station remote control system |
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