CN113824515A - Communication device, communication-in-motion equipment and servo control method - Google Patents

Communication device, communication-in-motion equipment and servo control method Download PDF

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Publication number
CN113824515A
CN113824515A CN202110901649.0A CN202110901649A CN113824515A CN 113824515 A CN113824515 A CN 113824515A CN 202110901649 A CN202110901649 A CN 202110901649A CN 113824515 A CN113824515 A CN 113824515A
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China
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servo control
control unit
pointing direction
communication
antenna feeder
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CN202110901649.0A
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CN113824515B (en
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李炜
李先果
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Satpro M&c Tech Co ltd
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Satpro M&c Tech Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/27—Monitoring; Testing of receivers for locating or positioning the transmitter
    • 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
    • H04B7/18504—Aircraft used as relay or high altitude atmospheric platform
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The application provides a communication device, communication-in-motion equipment and a servo control method, which relate to the technical field of mobile communication, and the communication device comprises: the antenna feeder component is aligned to the second equipment in the initial pointing direction and used for receiving signals from the second equipment; the radio frequency processing assembly is used for providing a control voltage determined according to the received signal for the servo control unit; under the condition that the pointing direction of the antenna feeder assembly is the initial pointing direction, if the control voltage is smaller than the preset voltage, the servo control unit controls the adjusting assembly to adjust the pointing direction of the antenna feeder assembly and collects control voltages corresponding to different pointing directions until a target control voltage is determined; the adjusting component is used for controlling the antenna feeder component to align the second equipment in the target pointing direction. The antenna feeder component is adjusted according to the size of the control voltage to be in communication with the second device, and the purpose of communication independent of satellite resources is achieved.

Description

Communication device, communication-in-motion equipment and servo control method
Technical Field
The application belongs to the technical field of mobile communication, and particularly relates to a communication device, a communication-in-motion device and a servo control method.
Background
At present, in some fields of scientific investigation, meteorological detection, emergency and the like, a communication device carried by an air carrier such as a captive balloon, an airship and the like is required to be used for emergency communication. For example, when a natural disaster occurs in a certain place, one airship is rapidly launched, and mobile communication in the entire disaster area can be recovered in a short time by mounting a communication device on the airship.
In the above application scenario, in order to enhance the communication capability, a plurality of airships are generally transmitted to form an airship cluster for communication. When the communication is carried out between the airships, if the distance is short, the communication can be carried out through wireless image transmission and data transmission; if the distance is longer, communication must be carried out through satellite transfer, and at this moment, in order to guarantee the communication bandwidth of carrying out communication with the satellite, the receiving area of the satellite antenna among the communication device that the airship carried will be designed very big correspondingly, leads to whole satellite antenna's size, weight all to rise, is unfavorable for fields such as scientific investigation, meteorological detection, emergent to use. In addition, when communication is performed through satellite relay, a large delay time is generated, and communication quality is affected.
Therefore, a new communication device is needed to solve the satellite bandwidth traffic charges without depending on satellite resources.
Disclosure of Invention
The embodiment of the application provides a communication device, a communication-in-motion device and a servo control method, the pointing direction of an antenna feeder assembly is adjusted through a servo control unit according to the magnitude of control voltage, the pointing direction is continuously adjusted to aim at a second device, a communication link with the second device is established with optimal quality, more efficient and reliable communication guarantee is provided, and the purpose of communication independent of satellite resources is achieved.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, a communication apparatus is provided, which is applied to a first device, and includes: the antenna feeder assembly, the radio frequency processing assembly, the servo control unit and the adjusting assembly;
the antenna feeder component is aligned with a second device in an initial pointing direction and is used for receiving signals from the second device; the initial pointing direction is determined by first information, the first information comprises the attitude and the heading of the first device, the position of the first device and the position of the second device, and at least one of the first device and the second device is a communication-in-motion device;
the radio frequency processing assembly is connected with the antenna feeder assembly and the servo control unit and is used for providing a control voltage determined according to the received signal for the servo control unit;
the servo control unit is also connected with the adjusting assembly, and under the condition that the pointing direction of the antenna feeder assembly is the initial pointing direction, if the control voltage is smaller than a preset voltage, the servo control unit controls the adjusting assembly to adjust the pointing direction of the antenna feeder assembly and collects the control voltages corresponding to different pointing directions until a target control voltage is determined;
the adjusting component is used for controlling the antenna feeder component to align the second equipment in a target pointing direction; the target pointing direction is a pointing direction corresponding to the target control voltage.
The communication apparatus provided in the first aspect is applied to a first device, and an antenna feeder component of the first device is aligned with a second device in an initial pointing direction to receive a signal from the second device through the antenna feeder component. The radio frequency processing assembly obtains a control voltage according to the signal and provides the control voltage for the servo control unit. However, at least one of the first device and the second device is a communication-in-motion device, and therefore when the position of at least one of the first device and the second device changes, the relative position between the first device and the second device changes, and based on this, since the control voltage is determined by the received signal, if the control voltage is less than the preset voltage, it indicates that the antenna feeder assembly is not aligned with the second device, therefore, the servo control unit may adjust the pointing direction of the antenna feeder assembly according to the magnitude of the control voltage until it is determined that the pointing direction corresponding to the target control voltage is the target pointing direction, so as to adjust the antenna feeder assembly to the target pointing direction, and align the second device by continuously adjusting the pointing direction, so that the control voltage is greater than or equal to the preset voltage, thereby achieving that the first device and the second device establish a communication link with optimal quality, and providing a more efficient communication method, Reliable communication guarantee is achieved, and therefore the purposes of not depending on satellite resources and providing more efficient and reliable communication guarantee are achieved.
In a possible implementation manner of the first aspect, the communication apparatus further includes: a data acquisition component; the data acquisition component is connected with the servo control unit and used for acquiring the first information and providing the first information to the servo control unit; the servo control unit is used for determining the initial pointing direction of the antenna feeder assembly according to the first information and controlling the adjusting assembly to adjust the pointing direction of the antenna feeder assembly to the initial pointing direction; wherein the attitude comprises an azimuth angle, a pitch angle, and a roll angle, the position comprises a longitude, a latitude, and an altitude, and the pointing direction comprises an azimuth angle and a pitch angle.
In a possible implementation manner of the first aspect, the data obtaining component includes: inertial navigation, double Beidou positioning equipment, a global positioning system and network management equipment; the inertial navigation system is connected with the servo control unit through a data slip ring and is used for acquiring the attitude of the first equipment; the Beidou positioning equipment is connected with the servo control unit through the data slip ring and is used for acquiring the course of the first equipment; the global positioning system is connected with the servo control unit and is used for acquiring the position of the first equipment; the network management equipment is connected with the servo control unit through the data slip ring and used for acquiring the position of the second equipment.
In a possible implementation manner of the first aspect, the communication apparatus further includes: the antenna controller is connected with the servo control unit through a data slip ring of the data acquisition assembly and used for providing an adjusting instruction for the servo control unit, and the adjusting instruction is used for indicating the servo control unit to adjust the pointing direction of the antenna feed assembly.
In a possible implementation manner of the first aspect, the radio frequency processing component includes: the device comprises a duplexer, a high-frequency head, an up-conversion power amplifier, a power divider, a beacon machine and a first device; the duplexer is respectively connected with the antenna feeder assembly, the input end of the high-frequency head and the output end of the up-conversion power amplifier; the duplexer is used for providing the signals to the high-frequency head, and the high-frequency head is used for carrying out frequency conversion and power amplification on the signals output by the duplexer; the power divider is respectively connected with the output end of the tuner, the input end of the beacon machine and the input end of the first device; the power divider is used for dividing the signal output by the high-frequency tuner into a first sub-signal and a second sub-signal, supplying the first sub-signal to the beacon machine and supplying the second sub-signal to the first device;
the output end of the beacon machine is connected with the servo control unit, and the output end of the first device is connected with the input end of the up-conversion power amplifier; the beacon machine is used for converting the first sub-signal into the control voltage and providing the control voltage to the servo control unit, the first device is used for adjusting the second sub-signal and providing the adjusted second sub-signal to the up-conversion power amplifier, and the up-conversion power amplifier is used for performing power amplification on the adjusted second sub-signal and generating a signal to be transmitted; the power divider is further configured to provide the signal to be transmitted output by the up-conversion power amplifier to the antenna feed assembly for transmission.
In a possible implementation manner of the first aspect, the first device is a modem or a two-way joint, and the modem is further connected to the network management device through a data slip ring of a data acquisition component; the modem is used for converting the first sub-signal provided by the power divider and transmitting the first sub-signal to the network management equipment; the two-way joint comprises a second transmitting end and a second receiving end; the second transmitting end and the second receiving end of the double-path joint are connected with X-frequency band transmission equipment, the double-path joint is used for carrying out signal transmission with the X-frequency band transmission equipment, and the X-frequency band transmission equipment is used for carrying out frequency conversion, power amplification and modulation and demodulation on signals provided by the double-path joint; when the first device is the modem, the antenna feed component transmits or receives the signal through a Ka frequency band; when the first device is the two-way joint, the antenna feed assembly transmits or receives the signal through an X frequency band.
In a possible implementation manner of the first aspect, the adjusting component includes: the device comprises a pitching zero-seeking switch, a pitching motor component, an azimuth zero-seeking switch and an azimuth motor component; the first end of the pitching zero-seeking switch, the first end of the pitching motor component, the first end of the azimuth zero-seeking switch and the first end of the azimuth motor component are all connected with the servo control unit, and the second end of the pitching zero-seeking switch, the second end of the pitching motor component, the second end of the azimuth zero-seeking switch and the second end of the azimuth motor component are all connected with the antenna feeder component; when the azimuth zero-finding switch is closed, the servo control unit controls the azimuth angle of the antenna feeder assembly to recover an initial value; when the pitching zero-searching switch is closed, the servo control unit controls the pitching angle of the antenna feeder assembly to recover an initial value; the azimuth motor assembly is used for adjusting the azimuth angle of the antenna feeder assembly under the control of the servo control unit, and the pitching motor assembly is used for adjusting the pitching angle of the antenna feeder assembly under the control of the servo control unit.
In a second aspect, a mobile communication device is provided, which includes: the communication device of the first aspect above or any possible implementation manner of the first aspect.
In a third aspect, there is provided a servo control method applied to the communication apparatus in the first aspect or any possible implementation manner of the first aspect, where the servo control method includes:
the antenna feeder assembly is aligned with a second device in an initial pointing direction, and the antenna feeder assembly receives a signal from the second device; the initial pointing direction is determined by first information, the first information comprises the attitude and the heading of the first device, the position of the first device and the position of the second device, and at least one of the first device and the second device is a communication-in-motion device;
the radio frequency processing component provides a control voltage determined according to the received signal to the servo control unit;
under the condition that the pointing direction of the antenna feeder assembly is the initial pointing direction, if the control voltage is smaller than the preset voltage, the servo control unit controls the adjusting assembly to adjust the pointing direction of the antenna feeder assembly, and acquires control voltages corresponding to different pointing directions until a target control voltage is determined;
the adjusting component controls the antenna feeder component to align the second device in a target pointing direction; the target pointing direction is a pointing direction corresponding to the target control voltage.
In a fourth aspect, a computer-readable storage medium is provided, in which a computer program is stored, and the computer program, when executed by a processor, may implement the servo control method in the first aspect or any possible implementation manner of the first aspect.
In a fifth aspect, a computer program product is provided, which, when run on a communication apparatus, causes the communication apparatus to perform the method of the first aspect or any possible implementation manner of the first aspect.
The communication device, the communication-in-motion device and the servo control method are applied to a first device, and an antenna feeder assembly of the first device is aligned to a second device in an initial pointing direction so as to receive signals from the second device through the antenna feeder assembly. The radio frequency processing assembly obtains a control voltage according to the signal and provides the control voltage for the servo control unit. However, at least one of the first device and the second device is a communication-in-motion device, and therefore when the position of at least one of the first device and the second device changes, the relative position between the first device and the second device changes, and based on this, since the control voltage is determined by the received signal, if the control voltage is less than the preset voltage, it indicates that the antenna feeder assembly is not aligned with the second device, therefore, the servo control unit may adjust the pointing direction of the antenna feeder assembly according to the magnitude of the control voltage until it is determined that the pointing direction corresponding to the target control voltage is the target pointing direction, so as to adjust the antenna feeder assembly to the target pointing direction, and align the second device by continuously adjusting the pointing direction, so that the control voltage is greater than or equal to the preset voltage, thereby achieving that the first device and the second device establish a communication link with optimal quality, and providing a more efficient communication link, Reliable communication guarantee is achieved, and therefore the purposes of not depending on satellite resources and providing more efficient and reliable communication guarantee are achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another communication device provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of another communication device provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another communication device provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of another communication device provided in an embodiment of the present application;
fig. 6 is an application scenario diagram applicable to a first device provided in an embodiment of the present application;
fig. 7 is a flowchart illustrating a servo control method according to an embodiment of the present application.
Reference numerals:
3-a communication device; 100-an antenna feeder assembly; 200-a radio frequency processing component; 210-a duplexer; com 1-first common end; in 1-first input terminal; out1 — first output; 220-a tuner; 230-an up-conversion power amplifier; 240-power divider; com 2-second common end; out2 — second output; 250-a beacon machine; 260 — a first device; 261-a modem; 262-two-way joint; rx 2-second receive end; tx2 — second transmit end; 300-a servo control unit; 400-a data acquisition component; 410-inertial navigation; 420-double beidou orientation equipment; 430-network management equipment; 500-a tuning assembly; 510-pitch zero-seeking switch; 520-a pitch motor assembly; 530-azimuth nulling switch; 540-orientation motor assembly; 600-data slipring; 700-global positioning system; 800-an antenna controller; 900-X frequency band transmission equipment; 1000-power supply.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.
Further, in this application, "left", "right", and like directional terms may include, but are not limited to, being defined with respect to a schematically-disposed orientation of components in the drawings, it being understood that these directional terms may be relative concepts that are used for relative description and clarification, and that may vary accordingly depending on the orientation of the components in the drawings.
In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate. Further, the term "electrically connected" may be a manner of electrically connecting that enables signal transmission. "electrically connected" may be a direct electrical connection or an indirect electrical connection through an intermediary.
First, the nouns to which this application relates will be briefly explained:
quiet well expert equipment: a communication device, which may be understood as stationary, refers to a communication connection established between satellite sites at a fixed location via a satellite access network; or establishing communication connection with a corresponding communication device.
The communication-in-motion equipment comprises: the mobile communication device is understood to mean that the communication device is arranged on an application carrier, the position of a satellite is tracked in real time in the process of moving along with the application carrier, and the satellite is used as a relay station to forward signals so as to establish communication connection with other communication devices. The application carrier is, for example, a vehicle, a ship, a captive balloon, an airplane, an airship and the like.
In some fields of scientific research, meteorological detection, emergency and the like, it is necessary to carry out emergency communication by using an airborne vehicle-mounted communication device (i.e., as a mobile communication device) such as a captive balloon or an airship and/or by using a ground vehicle-mounted communication device (i.e., as a mobile communication device) such as a vehicle. For example, when a natural disaster occurs in a certain place, one airship is rapidly launched, and mobile communication in the entire disaster area can be recovered in a short time by mounting a communication device on the airship.
In the above application scenario, in order to enhance the communication capability, a plurality of airships are generally transmitted to form an airship cluster for communication. For example, when communication is performed between airships, if the distance is short, communication can be performed through wireless image transmission and data transmission; if the distance is longer, communication must be carried out through satellite transfer, and at this moment, in order to guarantee the communication bandwidth of carrying out communication with the satellite, the receiving area of the satellite antenna among the communication device that the airship carried will be designed very big correspondingly, leads to whole satellite antenna's size, weight all to rise, is unfavorable for fields such as scientific investigation, meteorological detection, emergent to use. In addition, when communication is performed through satellite relay, a large delay time is generated, and communication quality is affected.
Therefore, a new communication device is needed to solve the satellite bandwidth traffic charges without depending on satellite resources.
In view of the above, an embodiment of the present application provides a communication apparatus, which is applied in a first device, in which an antenna feeder assembly is aligned with a second device in an initial pointing direction, so as to receive a signal from the second device through the antenna feeder assembly. The radio frequency processing assembly obtains a control voltage according to the signal and provides the control voltage for the servo control unit. Therefore, the servo control unit can adjust the pointing direction of the antenna feeder component according to the magnitude of the control voltage until the pointing direction corresponding to the target control voltage is determined to be the target pointing direction, so that the antenna feeder component is adjusted to the target pointing direction, the second equipment is aligned by continuously adjusting the pointing direction, the control voltage is greater than or equal to the preset voltage, a communication link with the optimal quality is established between the first equipment and the second equipment, satellite resources are not depended on, and the purpose of providing more efficient and reliable communication guarantee can be achieved.
The following describes in detail the structure of a communication device according to an embodiment of the present application with reference to fig. 1 to 5. Fig. 1 shows a schematic structural diagram of a communication device 3 provided in an embodiment of the present application.
The communication device 3 is applied to a first device, the first device is connected with at least one second device in a communication mode, and at least one of the first device and the second device is a communication-in-motion device.
For example, the first device and the second device are both communication-in-motion devices, and then the first device may be referred to as a first communication-in-motion device, and the second device may be referred to as a second communication-in-motion device. Or the first device is a communication-in-motion device and the second device is a communication-in-stills device. Or the first device is a static communication device and the second device is a communication-in-motion device. The term "satellite communication device" means an airship-mounted communication device, a vehicle-mounted communication device, or the like, and the "first" and "second" are used only for distinguishing objects.
Here, the second communication-in-motion device may have the same or different structure as the first communication-in-motion device, and the structures of the second communication-in-motion devices may be the same or different, which is not limited in this embodiment of the present application.
As shown in fig. 1, the communication device 3 includes: an antenna feeder assembly 100, a radio frequency processing assembly 200, a servo control unit 300 and an adjusting assembly 500.
The antenna feed assembly 100 is aligned with the second device in the initial pointing direction, the antenna feed assembly 100 being used to receive signals from the second device. Wherein the initial pointing direction is determined by first information including a pose and a heading of the first device, a location of the first device, and a location of the second device.
It will be appreciated that the antenna feed assembly 100 includes an antenna face and a feed.
It should be understood that, since the first device carrying the communication apparatus 3 communicates with the second device to directly form a communication link between a plurality of devices without communication connection with a satellite, the communication bandwidth requirement is relatively low, so that the size of the antenna in the antenna feeder assembly 100 does not need to be a particularly large receiving area, and the size, weight, and the like of the antenna feeder assembly 100 are also relatively low, and the communication apparatus 3 is relatively easy to mount on an air carrier or a ground carrier, and is convenient to use.
In addition, because no satellite is used as a relay station for signal retransmission, only communication is carried out among a plurality of devices, so that the problem of time delay caused by signal retransmission of the satellite is solved, and the communication efficiency and quality are better.
The rf processing component 200 is connected to the antenna feeder component 100 and the servo control unit 300, and the rf processing component 200 is configured to provide a control voltage determined according to the received signal to the servo control unit 300.
The servo control unit 300 is further connected to the adjusting assembly 500, and under the condition that the pointing direction of the antenna feeder assembly 100 is the initial pointing direction, if the control voltage is smaller than the preset voltage, the servo control unit 300 controls the adjusting assembly 500 to adjust the pointing direction of the antenna feeder assembly 100, and collects control voltages corresponding to different pointing directions until the target control voltage is determined,
the preset voltage is used as a reference voltage for determining whether the servo control unit 300 needs to adjust the pointing direction of the antenna feeder assembly 100, and the preset voltage may need to be set and adjusted.
It should be understood that, once the pointing direction of the antenna feeder assembly 100 is adjusted, the quality of the signal received by the antenna feeder assembly 100 will be affected, and the control voltage provided by the rf processing assembly 200 to the servo control unit 300 will also change accordingly, that is, the relationship between the pointing direction of the antenna feeder assembly 100 and the control voltage provided by the rf processing assembly 200 to the servo control unit 300 is one-to-one.
It should be understood that when the control voltage is greater than or equal to the preset voltage, it indicates that the pointing direction of the antenna feeder assembly 100 is appropriate, the communication requirement is met, and communication can be performed, so that the antenna feeder assembly 100 is locked, the first device and the second device are in communication line connection and do not change any more, and the second device can start sending signals to the first device.
When the control voltage is less than the preset voltage, it indicates that the pointing direction is not good, and the communication quality may be damaged, so that the antenna feeder assembly 100 needs to be adjusted, at this time, the servo control unit 300 may control the adjusting assembly 500 to adjust the pointing direction of the antenna feeder assembly 100, and stop until the control voltage is adjusted to be greater than or equal to the preset voltage.
It should be understood that the servo control unit 300 can control the adjusting assembly 500 to adjust the pointing direction of the antenna feeder assembly 100 for small amplitude swing adjustment, and the swing amplitude can be set and changed as required, which is not limited in this application.
It should be understood that the target control voltage may be the maximum control voltage among a plurality of collected control voltages corresponding to different pointing directions, or may be a control voltage satisfying other conditions.
The adjusting assembly 500 is used for controlling the antenna feeder assembly 100 to align the second device in the target pointing direction; the target pointing direction is a pointing direction corresponding to the target control voltage.
It should be understood that the antenna feeder assembly 100 is aligned with the second device in the target pointing direction means that the antenna feeder assembly 100 in the first device is adjusted to the pointing direction with the best communication quality with the second device. At this time, when the first device is aligned with the second device in the target pointing direction, the control voltage should be greater than or equal to the preset voltage.
Here, the servo control unit 300 may further continue the adjustment after determining the target pointing direction. For example, the adjusting component 500 adjusts the antenna feeder component 100 to the target pointing direction, and then the adjusting component 500 adjusts the antenna feeder component 100 to continuously perform the cone scanning tracking within a small angle range, and the servo control unit 300 continuously determines whether the received control voltage always meets the requirement that is greater than or equal to the preset voltage. If the target pointing direction cannot be met, the target pointing direction needs to be adjusted by a small amplitude. This ensures reliable communication even when the antenna feeder unit 100 is slightly misaligned due to mechanical factors or the like.
The embodiment of the application provides a communication device, which is applied to a first device, wherein an antenna feeder component of the first device is aligned to a second device in an initial pointing direction so as to receive a signal from the second device through the antenna feeder component. The radio frequency processing assembly obtains a control voltage according to the signal and provides the control voltage for the servo control unit. However, at least one of the first device and the second device is a communication-in-motion device, and therefore when the position of at least one of the first device and the second device changes, the relative position between the first device and the second device changes, and based on this, since the control voltage is determined by the received signal, if the control voltage is less than the preset voltage, it indicates that the antenna feeder assembly is not aligned with the second device, therefore, the servo control unit may adjust the pointing direction of the antenna feeder assembly according to the magnitude of the control voltage until it is determined that the pointing direction corresponding to the target control voltage is the target pointing direction, so as to adjust the antenna feeder assembly to the target pointing direction, and align the second device by continuously adjusting the pointing direction, so that the control voltage is greater than or equal to the preset voltage, thereby achieving that the first device and the second device establish a communication link with optimal quality, and providing a more efficient communication link, Reliable communication guarantee is achieved, and therefore the purposes of not depending on satellite resources and providing more efficient and reliable communication guarantee are achieved.
Fig. 2 is a schematic structural diagram of another communication apparatus provided in an embodiment of the present application.
Optionally, as a possible implementation manner, as shown in fig. 2, the communication apparatus further includes: data acquisition component 400.
The data acquisition component 400 is connected to the servo control unit 300, and the data acquisition component 400 is used for acquiring the first information and providing the first information to the servo control unit 300.
The servo control unit 300 is configured to determine an initial pointing direction of the antenna feeder assembly 100 according to the first information, and is configured to control the adjusting assembly 500 to adjust the pointing direction of the antenna feeder assembly 100 to the initial pointing direction.
The attitude comprises an azimuth angle, a pitch angle and a roll angle, and the position comprises longitude, latitude and altitude; the pointing direction includes an azimuth angle and a pitch angle.
It should be understood that, in the first information including the attitude and heading of the first device, the position of the second device, the attitude of the first device refers to the azimuth, the pitch, and the roll of the first device, and the position of the first device includes the longitude of the first device, the latitude of the first device, and the altitude of the first device; the location of the second device includes a longitude of the second device, a latitude of the second device, and an altitude of the second device.
It should be understood that the servo control unit 300 is used to determine the initial pointing direction of the antenna feeder assembly 100, which means the initial azimuth angle and pitch angle of the antenna feeder assembly 100, according to the attitude and heading of the first device, the position of the first device and the position of the second device.
Fig. 3 is a schematic structural diagram of another communication apparatus provided in an embodiment of the present application. Fig. 3 is a schematic structural diagram of another communication apparatus provided in an embodiment of the present application. Fig. 5 is a schematic structural diagram of another communication apparatus provided in an embodiment of the present application.
Optionally, as a possible implementation manner, as shown in fig. 3 to 5, the data obtaining component 400 includes: inertial navigation 410, compass navigation device 420, Global Positioning System (GPS) 700, and network management device 430.
The inertial navigation device 410 is connected to the servo control unit 300 through the data slip ring 600, and the inertial navigation device 410 is used for acquiring the attitude of the first device. That is, the inertial navigation 410 is utilized to acquire the azimuth, pitch, and roll of the first device.
It should be appreciated that data slip ring 600 is an electrical joint that can be continuously rotated 360 ° indefinitely to transmit power and data signals from a stationary structure to a rotating structure.
The inertial navigation system 410 exchanges data with the servo control unit 300 by using an RS232 communication protocol.
The Beidou navigation equipment 420 is connected with the servo control unit 300 through the data slip ring 600, and the Beidou navigation equipment 420 is used for acquiring the course of the first communication-in-motion equipment.
The big dipper positioning device 420 exchanges data with the servo control unit 300 by using an RS232 communication protocol.
The global positioning system 700 is connected to the servo control unit 300, and the global positioning system 700 is used for acquiring the position of the first device. That is, the longitude of the first device, the latitude of the first device, and the altitude of the first device are acquired using the global positioning system 700.
The network management device 430 is connected to the servo control unit 300 through the data slip ring 600, and the network management device 430 is configured to obtain a location of the second device. That is, the network management device 430 is used to obtain the longitude of the second device, the latitude of the second device, and the altitude of the second device.
Optionally, as a possible implementation manner, as shown in fig. 3 to 5, the radio frequency processing component 200 includes: a duplexer 210, a Low Noise Block (LNB) 220, a block up-converter (BUC) 230, a power divider 240, a beacon 250, and a first device 260.
The duplexer 210 includes a first common port Com1, a first input port In1, and a first output port Out1, the first common port Com1 is connected to the antenna feed assembly 100, the first output port Out1 is connected to the input port of the tuner 220, and the first input port In1 is connected to the output port of the up-conversion power amplifier 230. The duplexer 210 is used to provide signals to the tuner 220, and the tuner 220 is used to perform frequency conversion and power amplification on the signals output by the duplexer 210.
It should be appreciated that duplexer 210 may isolate the receive and transmit channels such that communication device 3 simultaneously receives and transmits signals. When the received signal is a high frequency signal, the tuner 220 may down-convert the high frequency signal to an intermediate frequency signal and power-amplify the intermediate frequency signal.
The power divider 240 includes a second common terminal Com2 and two second output terminals Out2, the second common terminal Com2 is connected to the output terminal of the tuner 220, one second output terminal Out2 is connected to the input terminal of the beacon 250, and the other second output terminal Out2 is connected to the input terminal of the first device 260. The power divider is arranged to divide the signal into a first sub-signal and a second sub-signal and to provide the first sub-signal to the beacon 250 and the second sub-signal to the first device 260.
It should be understood that the power divider 240 includes two second output terminals Out 2. For example: a second output Out2a on the left and a second output Out2b on the right in fig. 2, wherein the second output Out2a is connected to the input of the beacon 250 and the second output Out2b is connected to the input of the first device 260.
The output end of the beacon 250 is connected with the servo control unit 300, and the output end of the first device 260 is connected with the input end of the up-conversion power amplifier 230; the beacon unit 250 is configured to convert the first sub-signal into a control voltage and provide the control voltage to the servo control unit 300, the first device 260 is configured to adjust the second sub-signal and provide the adjusted second sub-signal to the up-conversion power amplifier 230, and the up-conversion power amplifier 230 is configured to perform power amplification on the adjusted second sub-signal and generate a signal to be transmitted.
The power divider 240 is further configured to provide the signal to be transmitted output by the up-conversion power amplifier 230 to the antenna feeder assembly 100 for transmission.
It should be understood that, since the output terminal of the up-conversion power amplifier 230 is connected to the first input terminal In1 of the duplexer 210, the first device 260 adjusts the second sub-signal and provides the adjusted second sub-signal to the up-conversion power amplifier 230, the up-conversion power amplifier 230 amplifies the adjusted second sub-signal to generate a signal to be transmitted, and provides the signal to be transmitted to the duplexer 210, and the duplexer 210 returns the signal to be transmitted to the antenna feed assembly 100.
Optionally, as a possible implementation manner, as shown in fig. 4, the first device 260 is a modem 261, and the modem 261 is further connected to the network management device 430 through the data slip ring 600; the modem 261 is configured to convert the first sub-signal provided by the power divider 240 and transmit the converted first sub-signal to the network management device 430.
Alternatively, as shown in fig. 5, the first device 260 is a two-way joint 262, and the two-way joint 262 includes a second transmitting end Rx2 and a second receiving end Tx 2.
The second transmitting end Rx2 and the second receiving end Tx2 of the two-way joint 262 are connected to the X-band transmission device 900, the two-way joint 262 is used for signal transmission with the X-band transmission device 900, and the X-band transmission device 900 is used for frequency conversion, power amplification, and modulation and demodulation of the signal provided by the two-way joint 262.
When the first device 260 is the modem 261, the antenna feed assembly 100 transmits or receives signals through the Ka band.
When the first device 260 is a two-way joint 262, the antenna feed assembly 100 transmits or receives signals through the X-band.
It should be understood that the modem 261 is used for performing modulation and demodulation on the second sub-signal provided by the power divider 240.
It should be understood that when the antenna feeder assembly 100 transmits or receives signals through the Ka band, large broadband data can be transmitted, so that real-time transmission of data such as high-definition images and videos can be ensured, and more efficient and reliable communication guarantee is provided for communication-in-motion equipment when an emergency communication reply task is executed.
It should be understood that the X-band transmission device 900 may be disposed on the communication apparatus 3, or the X-band transmission device 900 may also be disposed outside the communication apparatus, which is not limited in this embodiment of the application.
It should be understood that a two-way joint primarily functions to transmit two signals. The X-band transmission device 900 mainly performs frequency conversion, power amplification, debugging and demodulation, and the X-band transmission device 900 can convert the signal provided by the two-way joint 262 into a data signal.
Optionally, as a possible implementation manner, as shown in fig. 3 to 5, the adjusting component 500 includes: pitch zero switch 510, pitch motor assembly 520, azimuth zero switch 530, azimuth motor assembly 540.
A first end of the pitch zero-finding switch 510, a first end of the pitch motor element 520, a first end of the azimuth zero-finding switch 530, and a first end of the azimuth motor element 540 are all connected to the servo control unit 300, and a second end of the pitch zero-finding switch 510, a second end of the pitch motor element 520, a second end of the azimuth zero-finding switch 530, and a second end of the azimuth motor element 540 are all connected to the antenna feeder element 100.
When the azimuth zero-finding switch 530 is turned on, the servo control unit 300 controls the azimuth angle of the antenna feeder assembly 100 to recover to the initial value; when the pitch zero-finding switch 510 is closed, the servo control unit 300 controls the pitch angle of the antenna feeder assembly 100 to recover to the initial value; the azimuth motor assembly 540 is used to adjust the azimuth angle of the antenna feed assembly 100 under the control of the servo control unit 300, and the pitch motor assembly 520 is used to adjust the pitch angle of the antenna feed assembly 100 under the control of the servo control unit 300.
It should be understood that the initial values of the azimuth angle and the pitch angle of the antenna feeder assembly 100 may be set and changed as needed, and the embodiments of the present application do not limit this.
For example, here, the initial azimuth angle value of the antenna feeder assembly 100 may be an azimuth angle corresponding to the antenna feeder assembly 100 in the initial orientation, and the initial pitch angle value may be a pitch angle corresponding to the antenna feeder assembly 100 in the initial orientation.
Optionally, as a possible implementation manner, as shown in fig. 3 to 5, the communication device 3 further includes: the antenna controller 800, the antenna controller 800 is connected to the servo control unit 300 through the data slip ring 600, and the antenna controller 800 is configured to provide an adjustment instruction to the servo control unit 300, where the adjustment instruction is used to instruct the servo control unit 300 to adjust the pointing direction of the antenna feed assembly 100. Therefore, the servo control unit 300 can be controlled to adjust the pointing direction of the antenna feeder assembly 100 by artificially providing an adjustment instruction.
Wherein the antenna controller 800 exchanges data with the servo control unit 300 through the RS422 communication protocol.
Optionally, as a possible implementation manner, as shown in fig. 3 to 5, the communication device 3 further includes: a power supply 1000. The power supply 1000 is used to supply power to all the electrical devices included in the communication apparatus 3.
For example, the power supply 1000 may provide power to the servo control unit 300, the pitch motor assembly 520, and the azimuth motor assembly 540.
The embodiment of the present application further provides a mobile communication device 1, including: the communication device 3 as described above.
It is to be understood that the mobile communication device 1 provided in the present application may comprise one or more communication means 3 as described above. When a plurality of communication means 3 are included, the first means in the communication means 3 may all be modems, or all be two-way joints, or the first means in some of the communication means 3 may be modems and the first means in other of the communication means 3 may be two-way joints.
The beneficial effects of the mobile communication device provided in the embodiment of the present application are the same as those of the communication apparatus 3, and are not described herein again.
Fig. 6 shows an application scenario diagram applicable to a first device provided in an embodiment of the present application. The first device is connected with the second device in a communication mode, wherein at least one of the first device and the second device is a communication-in-motion device, and the first device comprises at least one communication device 3.
Illustratively, as shown in fig. 6, the application scenario includes a plurality of mobile devices, each of which can move. For example: the application scene comprises a plurality of airships and vehicles, and a plurality of communication links are formed. For example, in the application scenario, communication can be performed between an airship and between the airship and a vehicle on the ground, so that a communication cluster formed by a plurality of airships and a plurality of vehicles can ensure that communication requirements can be met quickly.
Illustratively, airship F1 acts as the first device 1, airship F2 acts as the first second device 2, and vehicle C1 acts as the second device 2, whereby airship F1 and airship F2, airship F1 and vehicle C1 may establish two communication links for communication.
It should be understood that the first device and the second device may both be a mobile communication device, or the first device is a mobile communication device and the second device is a stationary communication device, or the first device is a stationary communication device and the second device is a mobile communication device. In either case, communication will be affected as the position between the two devices changes, and thus, the direction of the first device pointing to the second device needs to be constantly adjusted for the first device to ensure real-time communication quality.
Based on the application scenario, an embodiment of the present application further provides a servo control method, and fig. 7 is a schematic flow diagram of the servo control method provided in the embodiment of the present application. The servo control method is applied to the communication device 3 included in the first apparatus described above.
As shown in fig. 7, the servo control method 500 includes:
s100, the antenna feeder component is aligned to the second equipment in the initial pointing direction, and the antenna feeder component receives signals from the second equipment.
The initial pointing direction is determined by first information, the first information comprises the attitude and the heading of the first device, the position of the first device and the position of the second device, and at least one of the first device and the second device is a communication-in-motion device.
S200, the radio frequency processing assembly provides the servo control unit with control voltage determined according to the received signals.
S300, under the condition that the pointing direction of the antenna feeder assembly is the initial pointing direction, if the control voltage is smaller than the preset voltage, the servo control unit controls the adjusting assembly to adjust the pointing direction of the antenna feeder assembly, and acquires control voltages corresponding to different pointing directions until the target control voltage is determined.
It should be understood that if the control voltage is greater than or equal to the preset voltage, the servo control unit does not need to control the adjusting component to adjust the pointing direction of the antenna feeder component.
S400, the adjusting component controls the antenna feeder component to align the second device in the target pointing direction.
The target pointing direction is a pointing direction corresponding to the target control voltage.
It should be appreciated that the control voltage is greater than or equal to the preset voltage when the first device is aligned with the second device.
It should be understood that when the first information is not acquired, the antenna feeder assembly is in a preset pointing direction, and then the first pointing direction is determined by acquiring the first information, and the antenna feeder assembly is aligned to the second device in the initial pointing direction. And because at least one of the first device and the second device is a communication-in-motion device, any one of the first device and the second device can move, once the first information changes, the target pointing direction is determined by continuously adjusting the pointing direction of the antenna feeder assembly, so that the real-time communication quality is ensured.
The beneficial effects of the servo control method provided by the embodiment of the present application are the same as those of the communication apparatus 3, and are not described herein again.
An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the method 500 for servo control is implemented as described above.
The embodiment of the present application also provides a computer program product, which when running on the communication apparatus 3, causes the communication apparatus 3 to execute the servo control method 500 implemented as described above.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. A communication apparatus, applied to a first device, the communication apparatus comprising: the antenna feeder assembly, the radio frequency processing assembly, the servo control unit and the adjusting assembly;
the antenna feeder component is aligned with a second device in an initial pointing direction and is used for receiving signals from the second device; the initial pointing direction is determined by first information, the first information comprises the attitude and the heading of the first device, the position of the first device and the position of the second device, and at least one of the first device and the second device is a communication-in-motion device;
the radio frequency processing assembly is connected with the antenna feeder assembly and the servo control unit and is used for providing a control voltage determined according to the received signal for the servo control unit;
the servo control unit is also connected with the adjusting assembly, and under the condition that the pointing direction of the antenna feeder assembly is the initial pointing direction, if the control voltage is smaller than a preset voltage, the servo control unit controls the adjusting assembly to adjust the pointing direction of the antenna feeder assembly and collects the control voltages corresponding to different pointing directions until a target control voltage is determined;
the adjusting component is used for controlling the antenna feeder component to align the second equipment in a target pointing direction; the target pointing direction is a pointing direction corresponding to the target control voltage.
2. The communications device of claim 1, further comprising: a data acquisition component;
the data acquisition component is connected with the servo control unit and used for acquiring the first information and providing the first information to the servo control unit;
the servo control unit is used for determining the initial pointing direction of the antenna feeder assembly according to the first information and controlling the adjusting assembly to adjust the pointing direction of the antenna feeder assembly to the initial pointing direction;
wherein the attitude comprises an azimuth angle, a pitch angle, and a roll angle, the position comprises a longitude, a latitude, and an altitude, and the pointing direction comprises an azimuth angle and a pitch angle.
3. The communications device of claim 2, wherein the data acquisition component comprises: inertial navigation, double Beidou positioning equipment, a global positioning system and network management equipment;
the inertial navigation system is connected with the servo control unit through a data slip ring and is used for acquiring the attitude of the first equipment;
the Beidou positioning equipment is connected with the servo control unit through the data slip ring and is used for acquiring the course of the first equipment;
the global positioning system is connected with the servo control unit and is used for acquiring the position of the first equipment;
the network management equipment is connected with the servo control unit through the data slip ring and used for acquiring the position of the second equipment.
4. A communication device according to any one of claims 1 to 3, further comprising: the antenna controller is connected with the servo control unit through a data slip ring of the data acquisition assembly and used for providing an adjusting instruction for the servo control unit, and the adjusting instruction is used for indicating the servo control unit to adjust the pointing direction of the antenna feed assembly.
5. A communication device according to any of claims 1 to 3, wherein the radio frequency processing component comprises: the device comprises a duplexer, a high-frequency head, an up-conversion power amplifier, a power divider, a beacon machine and a first device;
the duplexer is respectively connected with the antenna feeder assembly, the input end of the high-frequency head and the output end of the up-conversion power amplifier; the duplexer is used for providing the signals to the high-frequency head, and the high-frequency head is used for carrying out frequency conversion and power amplification on the signals output by the duplexer;
the power divider is respectively connected with the output end of the tuner, the input end of the beacon machine and the input end of the first device; the power divider is used for dividing the signal output by the high-frequency tuner into a first sub-signal and a second sub-signal, supplying the first sub-signal to the beacon machine and supplying the second sub-signal to the first device;
the output end of the beacon machine is connected with the servo control unit, and the output end of the first device is connected with the input end of the up-conversion power amplifier; the beacon machine is used for converting the first sub-signal into the control voltage and providing the control voltage to the servo control unit, the first device is used for adjusting the second sub-signal and providing the adjusted second sub-signal to the up-conversion power amplifier, and the up-conversion power amplifier is used for performing power amplification on the adjusted second sub-signal and generating a signal to be transmitted; the power divider is further configured to provide the signal to be transmitted output by the up-conversion power amplifier to the antenna feed assembly for transmission.
6. The communication device according to claim 5, wherein the first device is a modem or a two-way joint, and the modem is further connected with network management equipment through a data slip ring of the data acquisition component; the modem is used for converting the first sub-signal provided by the power divider and transmitting the first sub-signal to the network management equipment; the two-way joint comprises a second transmitting end and a second receiving end;
the second transmitting end and the second receiving end of the double-path joint are connected with X-frequency band transmission equipment, the double-path joint is used for carrying out signal transmission with the X-frequency band transmission equipment, and the X-frequency band transmission equipment is used for carrying out frequency conversion, power amplification and modulation and demodulation on signals provided by the double-path joint;
when the first device is the modem, the antenna feed component transmits or receives the signal through a Ka frequency band;
when the first device is the two-way joint, the antenna feed assembly transmits or receives the signal through an X frequency band.
7. The communication device according to any one of claims 1 to 3, wherein the adjustment component comprises: the device comprises a pitching zero-seeking switch, a pitching motor component, an azimuth zero-seeking switch and an azimuth motor component;
the first end of the pitching zero-seeking switch, the first end of the pitching motor component, the first end of the azimuth zero-seeking switch and the first end of the azimuth motor component are all connected with the servo control unit, and the second end of the pitching zero-seeking switch, the second end of the pitching motor component, the second end of the azimuth zero-seeking switch and the second end of the azimuth motor component are all connected with the antenna feeder component;
when the azimuth zero-finding switch is closed, the servo control unit controls the azimuth angle of the antenna feeder assembly to recover an initial value; when the pitching zero-searching switch is closed, the servo control unit controls the pitching angle of the antenna feeder assembly to recover an initial value; the azimuth motor assembly is used for adjusting the azimuth angle of the antenna feeder assembly under the control of the servo control unit, and the pitching motor assembly is used for adjusting the pitching angle of the antenna feeder assembly under the control of the servo control unit.
8. A mobile communication device, comprising: a communications device as claimed in any one of claims 1 to 7.
9. A servo control method applied to the communication apparatus according to claim 1, the servo control method comprising:
the antenna feeder assembly is aligned with a second device in an initial pointing direction, and the antenna feeder assembly receives a signal from the second device; the initial pointing direction is determined by first information, the first information comprises the attitude and the heading of the first device, the position of the first device and the position of the second device, and at least one of the first device and the second device is a communication-in-motion device;
the radio frequency processing component provides a control voltage determined according to the received signal to the servo control unit;
under the condition that the pointing direction of the antenna feeder assembly is the initial pointing direction, if the control voltage is smaller than the preset voltage, the servo control unit controls the adjusting assembly to adjust the pointing direction of the antenna feeder assembly, and acquires control voltages corresponding to different pointing directions until a target control voltage is determined;
the adjusting component controls the antenna feeder component to align the second device in a target pointing direction; the target pointing direction is a pointing direction corresponding to the target control voltage.
10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, is adapted to carry out the servo control method according to claim 9.
CN202110901649.0A 2021-08-06 2021-08-06 Communication device, communication-in-motion apparatus, and servo control method Active CN113824515B (en)

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