CN112327339A - Near space platform communication and search integrated device and method - Google Patents

Near space platform communication and search integrated device and method Download PDF

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Publication number
CN112327339A
CN112327339A CN202010960360.1A CN202010960360A CN112327339A CN 112327339 A CN112327339 A CN 112327339A CN 202010960360 A CN202010960360 A CN 202010960360A CN 112327339 A CN112327339 A CN 112327339A
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band
transceiver module
module
integrated
unit
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CN112327339B (en
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李献斌
覃江毅
曹璐
张飞
范广腾
王建
王凯
郭鹏宇
刘勇
冉德超
季明江
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National Defense Technology Innovation Institute PLA Academy of Military Science
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National Defense Technology Innovation Institute PLA Academy of Military Science
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/14Receivers specially adapted for specific applications
    • G01S19/17Emergency applications
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00Prospecting or detecting by optical means
    • G01V8/10Detecting, e.g. by using light barriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements
    • H04W4/14Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Health & Medical Sciences (AREA)
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  • Environmental & Geological Engineering (AREA)
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  • Optical Communication System (AREA)

Abstract

The invention discloses a near space platform communication and search integrated device and a method. The device includes: the device comprises a comprehensive electronic module, a Ka waveband transceiver module, an L waveband transceiver module and an infrared optical module; the integrated electronic module is respectively connected with the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the integrated electronic module is used for processing data information from the Ka-band transceiver module, the L-band transceiver module and the infrared optical module, the Ka-band transceiver module is used for transceiving Ka-band radio-frequency signals, the L-band transceiver module is used for transceiving L-band radio-frequency signals, and the infrared optical module is used for carrying out infrared shooting on an external target under the control of the integrated electronic module. The near space platform communication, navigation and search integrated device and the method can realize the integrated design of communication, navigation and search and rescue functions, can flexibly allocate resources according to requirements during actual application, improve the information distribution speed, shorten the response time and ensure that each task is efficiently completed.

Description

Near space platform communication and search integrated device and method
Technical Field
The invention relates to the technical field of near space aircrafts, in particular to a near space platform communication and search integrated device and a near space platform communication and search integrated method.
Background
The near space refers to a space region 20km to 100km from the ground, namely, an airspace between the highest altitude of the airplane flight and the lowest altitude of the satellite orbit. The near space platform refers to various air vehicles such as balloons, airships, gliders and the like which work in the near space. The near space platform can be deployed quickly and flexibly, has the capability of continuously working for a long time, and can realize the integration of various different services by utilizing the flexible, pollution-free and economic near space to carry out the work in the aspects of observation, remote sensing and communication.
The existing near space platform is mainly applied to the communication field and the satellite navigation enhancement field, and when the near space platform is applied to the communication field, a communication service system is installed on the near space platform, and the communication service system is utilized to provide communication services which are completely equivalent to satellites, such as earth observation and the like. Moreover, the coverage diameter of the existing adjacent space platform can reach 400-500 km generally, and compared with the existing emerging low-orbit satellite internet communication constellation, the low-orbit satellite internet communication constellation has the advantage of smaller delay. For example, a low orbit (LEO) satellite with altitude 1390km has a one-way delay of 5ms, while a close-by space communication platform with altitude 25km has a delay of only 0.083 ms. When the method is used in the field of satellite navigation enhancement, the navigation positioning precision of a satellite navigation system is improved by carrying a positioning signal source on a near space platform.
The inventor finds that the prior art has at least the following problems:
the existing adjacent space platform adopts a discrete design, different adjacent space platforms are required to be used for realizing different functions or a plurality of different devices installed on the adjacent space platforms are required to be used, the requirements of multiple applications are difficult to rapidly deal with, the utilization rate of system resources is low, the working efficiency is low, and the device cost is high; in addition, the existing adjacent space platform is lack of application in the search and rescue field.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a near space platform communication and search integrated device and a near space platform communication and search integrated method, which can realize integrated planning of communication, navigation and search and rescue functions.
Therefore, the invention discloses a near space platform conduction and search integrated device, which is arranged on a near space platform and comprises: the device comprises a comprehensive electronic module, a Ka waveband transceiver module, an L waveband transceiver module and an infrared optical module;
the integrated electronic module is respectively connected with the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the integrated electronic module is used for processing data information from the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and sending a processing result to the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the Ka-band transceiver module is used for transceiving Ka-band radio-frequency signals and sending the received Ka-band radio-frequency signals to the integrated electronic module; the L-band transceiver module is used for transceiving an L-band radio frequency signal and sending the received L-band radio frequency signal to the integrated electronic module; the infrared optical module is used for carrying out infrared shooting on an external target under the control of the comprehensive electronic module and sending the obtained target imaging information to the comprehensive electronic module.
In some alternative embodiments, the integrated electronics module comprises: the device comprises a signal processing unit, a frequency unit and a power supply unit;
the signal processing unit is respectively connected with the Ka-band transceiver module, the L-band transceiver module and the infrared optical module, and is used for processing data information from the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and sending processing results to the Ka-band transceiver module, the L-band transceiver module and the infrared optical module;
the frequency unit is respectively connected with the signal processing unit, the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and is used for providing frequency required by work;
the power supply unit is respectively connected with the signal processing unit, the frequency unit, the Ka waveband transceiver module, the L waveband transceiver module and the infrared optical module and used for providing electric energy.
In some optional embodiments, the Ka band transceiver module includes: the system comprises a Ka-band transmitting-receiving shared phased array antenna, a Ka-band receiving unit and a Ka-band transmitting unit;
the Ka-band transceiving shared phased-array antenna is respectively connected with the Ka-band receiving unit and the Ka-band transmitting unit, and is used for receiving external Ka-band radio-frequency signals and transmitting the Ka-band radio-frequency signals to the Ka-band receiving unit, and is used for receiving the Ka-band radio-frequency signals transmitted by the Ka-band transmitting unit and transmitting the Ka-band radio-frequency signals to the outside;
the Ka-band receiving unit is connected with the signal processing unit and is used for down-converting the received Ka-band radio-frequency signals into intermediate-frequency signals and sending the intermediate-frequency signals to the signal processing unit for analysis processing;
the Ka-band transmitting unit is connected with the signal processing unit and used for converting a processing result from the signal processing unit into a Ka-band radio-frequency signal and transmitting the Ka-band radio-frequency signal to the Ka-band transmitting-receiving shared phased-array antenna.
In some optional embodiments, the L-band transceiver module comprises: the system comprises an L-band receiving antenna, an L-band receiving unit, an L-band sending unit and an L-band transmitting antenna;
the L-band receiving antenna is connected with the L-band receiving unit and used for receiving an external L-band radio frequency signal and sending the L-band radio frequency signal to the L-band receiving unit;
the L-band receiving unit is connected with the signal processing unit and is used for down-converting the received L-band radio-frequency signal into an intermediate-frequency signal and sending the intermediate-frequency signal to the signal processing unit for analysis processing;
the L-band transmitting unit is connected with the signal processing unit and used for converting a processing result from the signal processing unit into an L-band radio-frequency signal and transmitting the L-band radio-frequency signal to the L-band transmitting antenna;
the L-band transmitting antenna is connected with the L-band transmitting unit and used for receiving the L-band radio-frequency signals transmitted by the L-band transmitting unit and transmitting the received L-band radio-frequency signals to the outside.
In some alternative embodiments, the infrared optical module comprises: the infrared camera unit and the camera rail control unit are connected with each other;
the infrared camera unit is connected with the signal processing unit and is used for imaging a target and sending target imaging information to the signal processing unit for analysis processing;
the camera rail control unit is connected with the signal processing unit and used for controlling the pointing direction of the infrared camera unit according to the control instruction of the signal processing unit.
In addition, the invention also discloses a communication and search integrated method, which is used for the communication and search integrated device of the adjacent space platform and comprises the following steps:
the near space platform communication, guidance and search integrated device works and operates in an HAPS communication and navigation enhancement mode;
after receiving a control instruction of a ground search and rescue command center, switching the conduction and search integrated device close to the space platform to an emergency search mode;
after the L-band transceiver module receives the Beidou short message distress signal, the navigation and search integrated device close to the space platform synchronously enters a rescue support mode;
and after the rescue action is finished, the adjacent space platform communication and search integrated device is switched to an HAPS communication and navigation enhancement mode according to a control instruction of the ground search and rescue command center.
In some optional embodiments, the HAPS communication and navigation enhancement mode includes a HAPS communication mode and a navigation enhancement mode, and when the near space platform communication and search integrated device performs HAPS communication, the integrated electronic module performs wireless communication by using the Ka band transceiver module and the L band transceiver module according to the information frequency band.
In some optional embodiments, when the navigation enhancement is performed on the integrated device for conducting and searching near the space platform, the integrated electronic module synthesizes the real-time position and time information of the integrated device for conducting and searching near the space platform into a navigation enhancement message, and sends the navigation enhancement message to the L-band transceiver module;
the L-band transceiver module converts the navigation enhancement message into a navigation enhancement signal and sends the navigation enhancement signal to a ground navigation receiver;
the ground navigation receiver calculates the position of the ground navigation receiver according to the navigation enhancement signal and the navigation satellite signal received in real time.
In some optional embodiments, when the near space platform communication and search integrated device operates in an emergency search mode, the L-band transceiver module receives a beidou short message distress signal from a ground distress user in real time and sends the received beidou short message distress signal to the integrated electronic module;
the integrated electronic module analyzes and processes the Beidou short message distress signal to obtain search and rescue information containing position information of users in ground distress, and sends the search and rescue information to the Ka-band transceiver module;
and the Ka-band transceiver module converts the search and rescue information into radio frequency signals and sends the radio frequency signals to the ground search and rescue command center.
In some optional embodiments, when the near space platform conduction and search integrated device works and operates in a rescue support mode, the integrated electronic module starts the infrared optical module;
the integrated electronic module calculates a relative angle between the infrared optical module and a ground distress user according to the position of the integrated electronic module and the position of the ground distress user, and sends the relative angle to the infrared optical module;
the infrared optical module adjusts the shooting position according to the received relative angle information, carries out infrared shooting on users in ground distress and sends imaging information to the comprehensive electronic module;
the integrated electronic module analyzes and processes the received imaging information and sends a processing result to the Ka waveband transceiver module;
and the Ka-band transceiver module converts the processing result into a radio frequency signal and sends the radio frequency signal to the ground search and rescue command center.
The technical scheme of the invention has the following main advantages:
according to the near space platform conducting and searching integrated device and method, the comprehensive electronic module, the Ka waveband transceiver module, the L waveband transceiver module and the infrared optical module are arranged on the near space platform, so that the integrated design of communication, navigation and search and rescue functions can be realized, resources can be flexibly configured according to requirements in actual application, the information distribution speed is improved, the response time is shortened, efficient completion of various tasks is ensured, and the equipment cost can be effectively reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an integrated near space platform conducting and searching device according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for integrating navigation and search according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a navigation enhancement mode in the integrated navigation and search method according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating an emergency search mode in the integrated conducting and searching method according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a rescue support mode in the integrated conducting and searching method according to an embodiment of the present invention.
Description of reference numerals:
the system comprises a 1-integrated electronic module, a 11-signal processing unit, a 12-frequency unit, a 13-power supply unit, a 2-Ka waveband transceiver module, a 21-Ka waveband transceiver shared phased array antenna, a 22-Ka waveband receiving unit, a 23-Ka waveband transmitting unit, a 3-L waveband transceiver module, a 31-L waveband receiving antenna, a 32-L waveband receiving unit, a 33-L waveband transmitting unit, a 34-L waveband transmitting antenna, a 4-infrared optical module, a 41-infrared camera unit and a 42-camera rail control unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
In a first aspect, as shown in fig. 1, an embodiment of the present invention provides an adjacent space platform conducting and searching integrated device, where the device is installed on an adjacent space platform, and includes: the device comprises a comprehensive electronic module, a Ka waveband transceiver module, an L waveband transceiver module and an infrared optical module; the integrated electronic module is respectively connected with the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the integrated electronic module is used for processing data information from the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and sending a processing result to the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the Ka-band transceiver module is used for transceiving Ka-band radio-frequency signals and transmitting the received Ka-band radio-frequency signals to the integrated electronic module; the L-band transceiver module is used for transceiving L-band radio-frequency signals and sending the received L-band radio-frequency signals to the comprehensive electronic module; the infrared optical module is used for carrying out infrared shooting on an external target under the control of the comprehensive electronic module and sending the obtained target imaging information to the comprehensive electronic module.
The following detailed description of the working principle of the near space platform conducting and searching integrated device provided by an embodiment of the present invention is provided:
specifically, when the near space platform conducting and searching integrated device is used, a starting default working mode is an HAPS communication and navigation enhancement mode, the HAPS communication and navigation enhancement mode comprises an HAPS communication mode and a navigation enhancement mode, and when the near space platform conducting and searching integrated device carries out HAPS communication, the integrated electronic module carries out wireless communication by using the Ka-band transceiver module and the L-band transceiver module according to an information frequency band; when the near space platform conduction and search integrated device carries out navigation enhancement, the integrated electronic module synthesizes the real-time position and time information of the near space platform into a navigation enhancement message and sends the navigation enhancement message to the L-band transceiver module, the L-band transceiver module converts the navigation enhancement message into a navigation enhancement signal and sends the navigation enhancement signal to the ground navigation receiver, and the ground navigation receiver calculates the position of the ground navigation receiver according to the navigation enhancement signal and the navigation satellite signal received in real time; after receiving a control instruction of a ground search and rescue command center, switching the conduction and search integrated device close to the space platform to an emergency search mode; at the moment, the L-band transceiver module receives the Beidou short message distress signal from the ground distress user in real time and sends the received Beidou short message distress signal to the integrated electronic module; the integrated electronic module analyzes and processes the Beidou short message distress signal to obtain search and rescue information containing position information of users in ground distress, and sends the search and rescue information to the Ka-band transceiver module; the Ka-band transceiver module converts the search and rescue information into radio frequency signals and sends the radio frequency signals to a ground search and rescue command center; meanwhile, after the L-band transceiver module receives the Beidou short message distress signal, the near space platform communication and search integrated device synchronously enters a rescue support mode; at the moment, the integrated electronic module starts the infrared optical module, the integrated electronic module calculates a relative angle between the infrared optical module and a ground distress user according to the position of the integrated electronic module and the position of the ground distress user, and sends the relative angle to the infrared optical module, the infrared optical module adjusts the shooting position of the integrated electronic module according to the received relative angle information, carries out infrared shooting on the ground distress user, and sends imaging information to the integrated electronic module, the integrated electronic module carries out analysis processing on the received imaging information and sends a processing result to the Ka-band transceiver module, and the Ka-band transceiver module converts the processing result into a radio frequency signal and sends the radio frequency signal to a ground search and rescue command center; after the rescue action is finished, the ground search and rescue command center sends a control instruction to the adjacent space platform communication and search integrated device, and the adjacent space platform communication and search integrated device is switched to an HAPS communication and navigation enhancement mode according to the control instruction of the ground search and rescue command center.
As shown in fig. 1, in an embodiment of the present invention, the integrated electronic module may include: the device comprises a signal processing unit, a frequency unit and a power supply unit; the signal processing unit is respectively connected with the Ka-band transceiver module, the L-band transceiver module and the infrared optical module, and is used for processing data information from the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and sending a processing result to the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the frequency unit is respectively connected with the signal processing unit, the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and is used for providing the frequency required by work; the power supply unit is respectively connected with the signal processing unit, the frequency unit, the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and used for providing electric energy.
Optionally, in order to facilitate the signal processing unit to analyze and process the data information, the signal processing unit may adopt a core architecture in which 1 SOC (System-on-a-Chip) Chip is collocated with two AD9361 broadband transceivers. The SOC chip may be, for example, a Zenq7000 series chip of saint corporation.
Further, as shown in fig. 1, in an embodiment of the present invention, the Ka band transceiver module may include: the system comprises a Ka-band transmitting-receiving shared phased array antenna, a Ka-band receiving unit and a Ka-band transmitting unit; the Ka-band transmitting-receiving shared phased-array antenna is respectively connected with the Ka-band receiving unit and the Ka-band transmitting unit, and is used for receiving external Ka-band radio-frequency signals and transmitting the Ka-band radio-frequency signals to the Ka-band receiving unit, receiving the Ka-band radio-frequency signals transmitted by the Ka-band transmitting unit and transmitting the Ka-band radio-frequency signals to the outside; the Ka-band receiving unit is connected with the signal processing unit and is used for converting the received Ka-band radio-frequency signals into intermediate-frequency signals in a down-conversion mode and sending the intermediate-frequency signals to the signal processing unit for analysis processing; the Ka-band transmitting unit is connected with the signal processing unit and used for converting a processing result from the signal processing unit into a Ka-band radio-frequency signal and transmitting the Ka-band radio-frequency signal to the Ka-band transceiving shared phased-array antenna.
Specifically, when the Ka band transceiver module is in use, the Ka band transceiver shared phased array antenna receives external Ka band radio frequency signals and sends the Ka band radio frequency signals to the Ka band receiving unit, and the Ka band receiving unit down-converts the received Ka band radio frequency signals into intermediate frequency signals and sends the intermediate frequency signals to the signal processing unit for analysis processing; after the analysis processing of the signals is finished, the signal processing unit sends the processing result to the Ka wave band sending unit, the Ka wave band sending unit converts the processing result into Ka wave band radio-frequency signals and sends the Ka wave band radio-frequency signals to the Ka wave band transceiving shared phased-array antenna, and the Ka wave band transceiving shared phased-array antenna transmits the Ka wave band radio-frequency signals to the outside.
The Ka frequency band transmitting-receiving shared phased array antenna can adopt a digital multi-beam self-adaptive antenna. Meanwhile, in order to reduce the weight of the antenna, the antenna may adopt a tile type hardware architecture.
Further, as shown in fig. 1, in an embodiment of the present invention, the L-band transceiver module may include: the system comprises an L-band receiving antenna, an L-band receiving unit, an L-band sending unit and an L-band transmitting antenna; the L-band receiving antenna is connected with the L-band receiving unit and used for receiving an external L-band radio frequency signal and sending the L-band radio frequency signal to the L-band receiving unit; the L-band receiving unit is connected with the signal processing unit and is used for down-converting the received L-band radio-frequency signal into an intermediate-frequency signal and sending the intermediate-frequency signal to the signal processing unit for analysis processing; the L-band transmitting unit is connected with the signal processing unit and used for converting a processing result from the signal processing unit into an L-band radio-frequency signal and transmitting the L-band radio-frequency signal to the L-band transmitting antenna; the L-band transmitting antenna is connected with the L-band transmitting unit and used for receiving the L-band radio-frequency signals transmitted by the L-band transmitting unit and transmitting the received L-band radio-frequency signals to the outside.
Specifically, when the L-band transceiver module is in use, the L-band receiving antenna receives an external L-band radio frequency signal and transmits the L-band radio frequency signal to the L-band receiving unit, and the L-band receiving unit down-converts the received L-band radio frequency signal into an intermediate frequency signal and transmits the intermediate frequency signal to the signal processing unit for analysis processing; after the analysis processing of the signals is finished, the signal processing unit sends the processing result to the L-band sending unit, the L-band sending unit converts the processing result from the signal processing unit into an L-band radio-frequency signal and sends the L-band radio-frequency signal to the L-band transmitting antenna; the L-band transmitting antenna receives the L-band radio-frequency signals sent by the L-band sending unit and transmits the received L-band radio-frequency signals to the outside.
Further, as shown in fig. 1, in an embodiment of the present invention, the infrared optical module may include: the infrared camera unit and the camera rail control unit are connected with each other; the infrared camera unit is connected with the signal processing unit and is used for imaging a target and sending target imaging information to the signal processing unit for analysis processing; the camera track control unit is connected with the signal processing unit and used for controlling the pointing direction of the infrared camera unit according to the control instruction of the signal processing unit.
The infrared camera unit can adopt an infrared camera with the resolution ratio of 0.1m, so that the infrared camera unit can accurately identify the condition of people in danger.
In one embodiment of the invention, the near space platform can be a stratospheric airship. The arrangement height, the communication coverage radius and the maximum transmission distance of the stratospheric airship can be set according to actual requirements.
In a second aspect, as shown in fig. 2, an embodiment of the present invention further provides a conducting and searching integrated method, where the conducting and searching integrated method is used for the above-mentioned adjacent space platform conducting and searching integrated device, and includes:
the near space platform communication, guidance and search integrated device works and operates in an HAPS communication and navigation enhancement mode;
after receiving a control instruction of a ground search and rescue command center, switching the conduction and search integrated device close to the space platform to an emergency search mode;
after the L-band transceiver module receives the Beidou short message distress signal, the navigation and search integrated device close to the space platform synchronously enters a rescue support mode;
and after the rescue action is finished, the adjacent space platform communication and search integrated device is switched to an HAPS communication and navigation enhancement mode according to a control instruction of the ground search and rescue command center.
Specifically, in an embodiment of the present invention, the HAPS communication and navigation enhancement mode includes a HAPS communication mode and a navigation enhancement mode; when the near space platform communication and search integrated device carries out HAPS communication, the integrated electronic module carries out wireless communication by utilizing the Ka-band transceiver module and the L-band transceiver module according to the information frequency band.
In one embodiment of the invention, HAPS communication refers to High-availability Platforms for Wireless Communications, and accords with WRC-122 and WRC-97 recommendations formulated by the world radio communication congress and ITU-F.592 and ITU-F.02 recommendations formulated by the International Telecommunication Union (ITU), an uplink Ka working frequency band is 31.3-31.8 GHz, a downlink Ka working frequency band is 27.5-28.35 GHz, an uplink and a downlink are respectively provided with 4 point beams, each point beam is divided into 30 users, and the bandwidth of each user is set to be 2 Mbps.
In consideration of the large rain attenuation of the Ka band, in an embodiment of the present invention, when the HAPS communication mode is designed, the link margin is greater than 12 dB.
Further, as shown in fig. 3, in an embodiment of the present invention, when the navigation enhancement is performed on the integrated device near the space platform, the integrated electronic module synthesizes the real-time position and the time information of the integrated device near the space platform into a navigation enhancement message, and sends the navigation enhancement message to the L-band transceiver module; the L-band transceiver module converts the navigation enhancement message into a navigation enhancement signal and sends the navigation enhancement signal to a ground navigation receiver; the ground navigation receiver calculates the position of the ground navigation receiver according to the navigation enhancement signal and the navigation satellite signal received in real time.
Therefore, the positioning precision of the ground navigation receiver can be remarkably improved by utilizing the navigation enhancement signal broadcasted by the near space platform communication and search integrated device.
In an embodiment of the present invention, the real-time position and the time information of the near space platform may be determined by installing a high-precision gnss (global Navigation Satellite system) receiver on the near space platform.
Optionally, the high-precision GNSS receiver may be a multi-frequency receiver to implement reception of multiple navigation satellite signals.
The Navigation Satellite may be any one of gps (GLOBAL Positioning system), bds (beidou Navigation Satellite system), GLONASS (GLOBAL Navigation SATELLITE SYSTEM) and galileo Navigation Satellite system.
Further, as shown in fig. 4, in an embodiment of the present invention, when the near space platform conducting and searching integrated device operates in the emergency searching mode, the L-band transceiver module receives the beidou short message distress signal from the ground distress user in real time, and sends the received beidou short message distress signal to the integrated electronic module; the integrated electronic module analyzes and processes the Beidou short message distress signal to obtain search and rescue information containing position information of users in ground distress, and sends the search and rescue information to the Ka-band transceiver module; and the Ka-band transceiver module converts the search and rescue information into radio frequency signals and sends the radio frequency signals to the ground search and rescue command center.
Therefore, the help seeking information of the users in distress on the ground can be sent to the ground search and rescue command center in time so as to carry out rescue actions, effectively improve the timeliness of rescue and ensure timely rescue.
Further, as shown in fig. 5, in an embodiment of the present invention, when the near space platform conducting and searching integrated device operates in the rescue support mode, the integrated electronic module starts the infrared optical module; the integrated electronic module calculates a relative angle between the infrared optical module and a ground distress user according to the position of the integrated electronic module and the position of the ground distress user, and sends the relative angle to the infrared optical module; the infrared optical module adjusts the shooting position according to the received relative angle information, carries out infrared shooting on users in ground distress and sends imaging information to the comprehensive electronic module; the integrated electronic module analyzes and processes the received imaging information and sends a processing result to the Ka waveband transceiver module; and the Ka-band transceiver module converts the processing result into a radio frequency signal and sends the radio frequency signal to the ground search and rescue command center.
Therefore, the ground search and rescue command center can deploy a search and rescue plan according to target imaging information provided by the near space platform communication and search integrated device, and the search and rescue success rate is improved.
Therefore, the near space platform conducting and searching integrated device and the near space platform conducting and searching integrated method provided by the embodiment of the invention can realize the integrated design of communication, navigation and search and rescue functions by arranging the comprehensive electronic module, the Ka waveband transceiver module, the L waveband transceiver module and the infrared optical module on the near space platform, can flexibly configure resources according to requirements during actual application, improve the information distribution speed, shorten the response time, ensure that each task is efficiently completed, and can effectively reduce the equipment cost.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a close on space platform leads to lead and searches integrated device, a serial communication port, the device is installed on closing on space platform, includes: the device comprises a comprehensive electronic module, a Ka waveband transceiver module, an L waveband transceiver module and an infrared optical module;
the integrated electronic module is respectively connected with the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the integrated electronic module is used for processing data information from the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and sending a processing result to the Ka-band transceiver module, the L-band transceiver module and the infrared optical module; the Ka-band transceiver module is used for transceiving Ka-band radio-frequency signals and sending the received Ka-band radio-frequency signals to the integrated electronic module; the L-band transceiver module is used for transceiving an L-band radio frequency signal and sending the received L-band radio frequency signal to the integrated electronic module; the infrared optical module is used for carrying out infrared shooting on an external target under the control of the comprehensive electronic module and sending the obtained target imaging information to the comprehensive electronic module.
2. The integrated near space platform conducting and searching device as claimed in claim 1, wherein said integrated electronic module comprises: the device comprises a signal processing unit, a frequency unit and a power supply unit;
the signal processing unit is respectively connected with the Ka-band transceiver module, the L-band transceiver module and the infrared optical module, and is used for processing data information from the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and sending processing results to the Ka-band transceiver module, the L-band transceiver module and the infrared optical module;
the frequency unit is respectively connected with the signal processing unit, the Ka-band transceiver module, the L-band transceiver module and the infrared optical module and is used for providing frequency required by work;
the power supply unit is respectively connected with the signal processing unit, the frequency unit, the Ka waveband transceiver module, the L waveband transceiver module and the infrared optical module and used for providing electric energy.
3. The integrated near space platform conducting and searching device as claimed in claim 2, wherein the Ka band transceiver module comprises: the system comprises a Ka-band transmitting-receiving shared phased array antenna, a Ka-band receiving unit and a Ka-band transmitting unit;
the Ka-band transceiving shared phased-array antenna is respectively connected with the Ka-band receiving unit and the Ka-band transmitting unit, and is used for receiving external Ka-band radio-frequency signals and transmitting the Ka-band radio-frequency signals to the Ka-band receiving unit, and is used for receiving the Ka-band radio-frequency signals transmitted by the Ka-band transmitting unit and transmitting the Ka-band radio-frequency signals to the outside;
the Ka-band receiving unit is connected with the signal processing unit and is used for down-converting the received Ka-band radio-frequency signals into intermediate-frequency signals and sending the intermediate-frequency signals to the signal processing unit for analysis processing;
the Ka-band transmitting unit is connected with the signal processing unit and used for converting a processing result from the signal processing unit into a Ka-band radio-frequency signal and transmitting the Ka-band radio-frequency signal to the Ka-band transmitting-receiving shared phased-array antenna.
4. The integrated near space platform conducting and searching device according to claim 2, wherein the L-band transceiver module comprises: the system comprises an L-band receiving antenna, an L-band receiving unit, an L-band sending unit and an L-band transmitting antenna;
the L-band receiving antenna is connected with the L-band receiving unit and used for receiving an external L-band radio frequency signal and sending the L-band radio frequency signal to the L-band receiving unit;
the L-band receiving unit is connected with the signal processing unit and is used for down-converting the received L-band radio-frequency signal into an intermediate-frequency signal and sending the intermediate-frequency signal to the signal processing unit for analysis processing;
the L-band transmitting unit is connected with the signal processing unit and used for converting a processing result from the signal processing unit into an L-band radio-frequency signal and transmitting the L-band radio-frequency signal to the L-band transmitting antenna;
the L-band transmitting antenna is connected with the L-band transmitting unit and used for receiving the L-band radio-frequency signals transmitted by the L-band transmitting unit and transmitting the received L-band radio-frequency signals to the outside.
5. The integrated near space platform conducting and searching device as claimed in claim 2, wherein the infrared optical module comprises: the infrared camera unit and the camera rail control unit are connected with each other;
the infrared camera unit is connected with the signal processing unit and is used for imaging a target and sending target imaging information to the signal processing unit for analysis processing;
the camera rail control unit is connected with the signal processing unit and used for controlling the pointing direction of the infrared camera unit according to the control instruction of the signal processing unit.
6. An integrated approach for conducting and searching adjacent space platform, which is applied to the integrated approach for conducting and searching apparatus of any one of claims 1 to 5, comprising:
the near space platform communication, guidance and search integrated device works and operates in an HAPS communication and navigation enhancement mode;
after receiving a control instruction of a ground search and rescue command center, switching the conduction and search integrated device close to the space platform to an emergency search mode;
after the L-band transceiver module receives the Beidou short message distress signal, the navigation and search integrated device close to the space platform synchronously enters a rescue support mode;
and after the rescue action is finished, the adjacent space platform communication and search integrated device is switched to an HAPS communication and navigation enhancement mode according to a control instruction of the ground search and rescue command center.
7. The integrated conducting and searching method according to claim 6, wherein the HAPS communication and navigation enhancement mode comprises a HAPS communication mode and a navigation enhancement mode, and when the integrated conducting and searching device is in the HAPS communication mode, the integrated electronic module performs wireless communication by using the Ka band transceiver module and the L band transceiver module according to the information frequency band.
8. The integrated conducting and searching method according to claim 7, wherein when the integrated conducting and searching device is used for enhancing navigation near a space platform, the integrated electronic module synthesizes real-time position and time information of the integrated conducting and searching device near the space platform into a navigation enhanced message, and sends the navigation enhanced message to the L-band transceiver module;
the L-band transceiver module converts the navigation enhancement message into a navigation enhancement signal and sends the navigation enhancement signal to a ground navigation receiver;
the ground navigation receiver calculates the position of the ground navigation receiver according to the navigation enhancement signal and the navigation satellite signal received in real time.
9. The integrated conducting and searching method according to claim 6, wherein when the integrated conducting and searching device near the space platform operates in the emergency searching mode, the L-band transceiver module receives Beidou short message distress signals from users in ground distress in real time and sends the received Beidou short message distress signals to the integrated electronic module;
the integrated electronic module analyzes and processes the Beidou short message distress signal to obtain search and rescue information containing position information of users in ground distress, and sends the search and rescue information to the Ka-band transceiver module;
and the Ka-band transceiver module converts the search and rescue information into radio frequency signals and sends the radio frequency signals to the ground search and rescue command center.
10. The integrated conducting and searching method according to claim 6, wherein when the integrated conducting and searching device adjacent to the space platform works and operates in a rescue support mode, the integrated electronic module starts the infrared optical module;
the integrated electronic module calculates a relative angle between the infrared optical module and a ground distress user according to the position of the integrated electronic module and the position of the ground distress user, and sends the relative angle to the infrared optical module;
the infrared optical module adjusts the shooting position according to the received relative angle information, carries out infrared shooting on users in ground distress and sends imaging information to the comprehensive electronic module;
the integrated electronic module analyzes and processes the received imaging information and sends a processing result to the Ka waveband transceiver module;
and the Ka-band transceiver module converts the processing result into a radio frequency signal and sends the radio frequency signal to the ground search and rescue command center.
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