CN112838877A - Multimode communication equipment - Google Patents

Multimode communication equipment Download PDF

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Publication number
CN112838877A
CN112838877A CN202110257083.2A CN202110257083A CN112838877A CN 112838877 A CN112838877 A CN 112838877A CN 202110257083 A CN202110257083 A CN 202110257083A CN 112838877 A CN112838877 A CN 112838877A
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China
Prior art keywords
module
sub
communication
interface
satellite
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CN202110257083.2A
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Chinese (zh)
Inventor
王新乐
郇一恒
张学勇
邢东普
佟旗
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Beijing MinoSpace Technology Co Ltd
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Beijing MinoSpace Technology Co Ltd
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Priority to CN202110257083.2A priority Critical patent/CN112838877A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • 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

Abstract

The embodiment of the application provides multimode communication equipment, and relates to the technical field of wireless communication. The multimode communication equipment comprises a main control module, a communication network module and an interface component; the communication network module comprises a mobile network sub-module, a satellite navigation short message sub-module and a satellite communication sub-module, and the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are respectively connected with the main control module; the interface assembly comprises an aerial plug interface, a first radio frequency interface and a second radio frequency interface, the aerial plug interface is connected with the main control module, the first radio frequency interface is connected with the satellite navigation short message sub-module, and the second radio frequency interface is connected with the satellite communication sub-module. The multimode communication equipment can combine three communication modes of a mobile communication network, a satellite communication network and satellite navigation short message communication, and has the technical effects of low power consumption, light weight, high reliability and low traffic charge.

Description

Multimode communication equipment
Technical Field
The application relates to the technical field of wireless communication, in particular to multimode communication equipment.
Background
At present, most of the existing communication systems for measurement and control use wireless data transmission radio stations as the main communication means. Radio data transmission stations may also be called "data transmission stations", which refer to high-performance professional data transmission stations implemented by means of DSP technology and radio technology. The use of the data transmission radio station is developed from the earliest key code, telegraph, analog radio station and wireless MODEM to the current digital radio station, DSP and software radio; the transmission signals also can be from codes, low-speed data (300-1200 bps) to high-speed data (N64K-N E1), and services including remote control and remote measurement data, digitized voice, dynamic images and the like can be transmitted. However, the wireless data transmission radio station has low real-time performance, low transmission rate, large time delay and inconvenient operation.
In the prior art, a few systems integrate a 4G network and a Beidou short message communication system. The 4G network has the defects of insufficient coverage in certain areas, insufficient coverage at higher heights and the like, and the civil Beidou short message has the use frequency of 60s, namely the command can be sent within 60s, so that the 4G network has the defect of being fatal to certain fast-moving carriers, particularly emergency situations.
Disclosure of Invention
The embodiment of the application aims to provide multimode communication equipment which can combine three communication modes of a mobile communication network, a satellite communication network and satellite navigation short message communication and has the technical effects of low power consumption, light weight, high reliability and low traffic charge.
The embodiment of the application provides multimode communication equipment, which comprises a main control module, a communication network module and an interface component;
the communication network module comprises a mobile network sub-module, a satellite navigation short message sub-module and a satellite communication sub-module, and the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are respectively connected with the main control module;
the interface assembly comprises an aerial plug interface, a first radio frequency interface and a second radio frequency interface, the aerial plug interface is connected with the main control module, the first radio frequency interface is connected with the satellite navigation short message sub-module, and the second radio frequency interface is connected with the satellite communication sub-module.
In the implementation process, the multimode communication equipment combines three communication modes of a mobile communication network, a satellite communication network and satellite navigation short message communication through a mobile network sub-module, a satellite navigation short message sub-module and a satellite communication sub-module, and then realizes communication connection between the multimode communication equipment and other equipment through an air-plug interface, a first radio frequency interface and a second radio frequency interface; the main control module is used for controlling the work of the communication network module, and can select one of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module to carry out communication according to the strength of network signals, so that the respective advantages of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are fully exerted, and the defects are avoided; by the mode, the advantages of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are fully exerted, the defects of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are avoided, and the technical effects of low power consumption, light weight, high reliability and low flow rate charge are achieved.
Furthermore, the satellite communication sub-module comprises a satellite communication sub-module and an interface sub-module, and the satellite communication sub-module is connected with the main control module through the interface sub-module.
In the implementation process, the satellite communication submodule can complete a satellite communication function and a GPS positioning function; the interface submodule is connected with the main control module and can complete the functions of power supply, management, satellite dialing, data receiving and transmitting and the like of the satellite communication submodule.
Furthermore, the satellite communication submodule comprises an RF transceiver and a power management unit, the power management unit is connected to the RF transceiver, the power management unit is connected to the interface submodule, and the operating frequency of the RF transceiver is L-band.
In the implementation process, the satellite communication sub-module integrates a baseband, an RF transceiver and a power management unit, is provided with a transmitter and a receiver, has an L-band working frequency and can complete the communication work of the satellite.
Furthermore, the interface sub-module is connected with the main control module through an RS232 serial port.
Further, the mobile network sub-module is a 4G communication sub-module.
Furthermore, the satellite navigation short message submodule is a Beidou short message submodule.
Furthermore, the Beidou short message sub-module is connected with the main control module through a TTL interface.
Further, the satellite communication sub-module is a Thuraya satellite communication sub-module.
Furthermore, the Thuraya satellite communication sub-module is connected with the main control module through a TTL interface.
Furthermore, the device also comprises a power module and a user interface, wherein the power module and the user interface are respectively connected with the main control module.
In the implementation process, the power module can supply power to the whole multimode communication equipment, and the user interface can be connected with airborne equipment to complete the functions of instruction, transparent transmission and the like.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the above-described techniques.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a multimode communication device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a satellite communication module according to an embodiment of the present disclosure;
fig. 3 is a system structure diagram of a satellite communication sub-module provided in the embodiment of the present application;
fig. 4 is a system structure diagram of a multimode communication device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or a point connection; either directly or indirectly through intervening media, or may be an internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The embodiment of the application provides multimode communication equipment which can be applied to wireless communication, for example, wireless communication of an unmanned aerial vehicle; the multimode communication equipment combines three communication modes of a mobile communication network, a satellite communication network and satellite navigation short message communication through a mobile network sub-module, a satellite navigation short message sub-module and a satellite communication sub-module, and then realizes communication connection between the multimode communication equipment and other equipment through an aerial plug interface, a first radio frequency interface and a second radio frequency interface; the main control module is used for controlling the work of the communication network module, and can select one of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module to carry out communication according to the strength of network signals, so that the respective advantages of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are fully exerted, and the defects are avoided; by the mode, the advantages of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are fully exerted, the defects of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are avoided, and the technical effects of low power consumption, light weight, high reliability and low flow rate charge are achieved.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a multimode communication device according to an embodiment of the present disclosure, where the multimode communication device includes a main control module 100, a communication network module 200, and an interface assembly 300.
Illustratively, the communication network module 200 includes a mobile network sub-module 210, a satellite navigation short message sub-module 220 and a satellite communication sub-module 230, and the mobile network sub-module 210, the satellite navigation short message sub-module 220 and the satellite communication sub-module 230 are respectively connected to the main control module 100.
Illustratively, the main control module 100 is configured to control the operation of the communication network module 200, and may select one of the mobile network sub-module 210, the satellite navigation short message sub-module 220, and the satellite communication sub-module 230 to perform communication according to the strength of the network signal.
Optionally, the main control system uses STM32F415RGT6 as a main control chip and is responsible for functions such as data processing, system management, user data and command processing, and the like. The chip adopts an intentional semiconductor 90nm technology and an ART accelerator, has a dynamic power consumption adjusting function, can realize current consumption as low as 238A/MHz in a running mode and when being executed from a Flash memory, and provides the performance of a Cortex-M4 kernel (with a floating point unit) with the working frequency of 168 MHz. Meanwhile, the system has rich peripheral interfaces comprising rich I/O interfaces, 6 USARTs with the speed of 10.5Mb/s, 3 SPIs with the speed of 42Mb/s, 3I 2C, 2 CAN and 1 SDIO, 17 timers, AD/DA, an encryption/HASH processor, an on-chip integrated 1MB Flash and a 192KB SRAM.
Illustratively, the interface assembly 300 includes an air interface 310, a first radio interface 320 and a second radio interface 330, wherein the air interface 310 is connected to the main control module 100, the first radio interface 320 is connected to the satellite navigation short message sub-module 220, and the second radio interface 330 is connected to the satellite communication sub-module 230.
In some implementation scenarios, the multimode communication device combines three communication modes of a mobile communication network, a satellite communication network and a satellite navigation short message communication through the mobile network sub-module 210, the satellite navigation short message sub-module 220 and the satellite communication sub-module 230, and then realizes communication connection between the multimode communication device and other devices through interfaces such as the air-plug interface 310, the first radio frequency interface 320 and the second radio frequency interface 330; the main control module 100 is used for controlling the work of the communication network module 200, and can select one of the mobile network submodule 210, the satellite navigation short message submodule 220 and the satellite communication submodule 230 to communicate according to the strength of network signals, so that the respective advantages of the mobile network submodule 210, the satellite navigation short message submodule 220 and the satellite communication submodule 230 are fully exerted, and the defects are avoided; by the mode, the advantages of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are fully exerted, the defects of the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are avoided, and the technical effects of low power consumption, light weight, high reliability and low flow rate charge are achieved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a satellite communication module according to an embodiment of the present disclosure.
Illustratively, the satellite communication sub-module 230 includes a satellite communication sub-module 231 and an interface sub-module 232, and the satellite communication sub-module 231 is connected to the main control module 100 through the interface sub-module 232.
Illustratively, the satellite communication sub-module 231 may perform a satellite communication function as well as a GPS positioning function; the interface sub-module 232 is connected to the main control module 100, and can perform power supply, management, satellite dialing, data transceiving, and other functions of the satellite communication sub-module 231.
In some embodiments, the interface sub-module 232 may adopt a NUC975 serial processor as a main control chip, and the NUC970 serial chip is a system-level chip with an ARM926EJS as a core, and includes a 16kB I-Cache, a 16kB D-Cache, and an MMU memory management module, and supports a frequency up to 300MHz, and provides rich peripheral interfaces, including a serial port, a USB fast Host/Device, SDHC, a network interface, and an I2S audio interface. And the computer can be started by NAND Flash and SPI Flash. The interface module adopts an embedded linux operating system, an application program is compiled and developed by using C language, the interface module is mainly connected with the satellite communication module through a serial port, after the interface module is initially electrified, a PPP dialing function is used for applying for satellite network access, and communication functions such as satellite network access and TCP connection are completed.
In some embodiments, the satellite communication sub-module selects the SM-2700 module as a satellite radio frequency transceiver.
Referring to fig. 3, fig. 3 is a system structural diagram of a satellite communication sub-module according to an embodiment of the present disclosure.
Illustratively, the satellite communication submodule 231 includes an RF transceiver and a power management unit, the power management unit is connected to the RF transceiver, the power management unit is connected to the interface submodule, and an operating frequency of the RF transceiver is an L-band.
Illustratively, the satellite communication sub-module 231 integrates a baseband, an RF transceiver and a power management unit, and is equipped with a transmitter and a receiver, and the operating frequency is L band, so that the communication operation to the satellite can be completed.
In some embodiments, the interface sub-module 232 is connected to the main control module 100 via an RS232 serial port.
Illustratively, the RS232 serial port has the advantages or characteristics of few signal lines, flexible baud rate selection, negative logic transmission, longer transmission distance and the like.
Illustratively, the RS232 bus defines 25 lines, including two signal channels, a first channel (referred to as the primary channel) and a second channel (referred to as the secondary channel). Full duplex communication can be achieved by using an RS232 bus, a main channel is generally used, and a minor channel is used less frequently. In general application, full-duplex communication can be realized by using 3 to 9 signal lines, and a simple full-duplex communication process can be realized by using three signal lines (a receiving line, a transmitting line and a signal ground).
Illustratively, the mobile network sub-module 210 is a 4G communication sub-module.
Illustratively, the 4G communication sub-module may adopt an Air720 communication module, the Air720 communication module is a five-mode full-network 4G DTU, and the network supports a maximum downlink rate of 150Mbps and a maximum uplink rate of 50 Mbps. The built-in abundant network protocol integrates the serial port quasi-data transmission interface, does not need any driver, and is convenient for networking and using of traditional serial port equipment.
Illustratively, the 4G communication sub-module is connected to the main control module 100 through a TTL serial port, and after the multi-mode communication device is powered on, the 4G communication sub-module automatically enters a transparent transmission mode, and connects to a TCP server set by a user, thereby completing establishment of a communication channel. Meanwhile, the signal quality is inquired in real time, and when the signal is poor, the use is stopped and the satellite communication sub-module 230 is automatically switched, so that the communication reliability is guaranteed.
Illustratively, the satellite navigation short message submodule 220 is a beidou short message submodule.
Exemplarily, the Beidou short message sub-module can adopt a communication module GNS1531, the module is a module supporting Beidou RDSS, an LNA, a high-performance RDSS radio frequency transceiver chip, a 5W output power amplifier module and a special Beidou RDSS baseband circuit are integrated in the module, and RDSS positioning and communication functions can be completely realized. The product is simple and convenient to apply, high in integration level, small in size, low in power consumption and high in reliability. The built-in LNA of the module realizes filtering and low-noise amplification of RDSS satellite signals, and a user does not need to externally arrange the LNA and is directly connected with a passive antenna; a 5W power amplifier module is arranged in the satellite communication system, and satellite communication can be carried out without adding PA; the average static power consumption of the module is less than or equal to 150mA @3.7V, and the power consumption is extremely low;
exemplarily, in the multimode communication device provided in the embodiment of the present application, the beidou short message is used as a standby communication means in an emergency, and after power is turned on, the beidou short message is automatically searched and networked, and then enters a standby state, so that data transmission can be started at any time. When an emergency occurs, a user can quickly switch to short message communication and send an emergency disposal instruction of the unmanned aerial vehicle, so that the safety and the reliability of the whole machine are guaranteed.
Exemplarily, the big dipper short message belongs to a point-to-point transceiving system, and cannot be directly accessed to the internet, so that in the system, a ground transceiving station system is provided, and the system can forward and access data to a user server through a 4G network, thereby having a complete communication network.
Illustratively, the beidou short message sub-module 220 is connected with the main control module 100 through a TTL interface.
Illustratively, the satellite communications sub-module 230 is a Thuraya satellite communications sub-module.
Illustratively, the Thuraya satellite system is a commercial satellite communications system operated by the american Thuraya satellite company. Through the Thuraya satellite network, customers may enjoy uninterrupted, seamless, and international-spanning satellite communication services in various regions of the world, such as europe, most of africa, the middle east, asia, and oceania.
Illustratively, the Thuraya satellite communication sub-module is connected with the main control module through a TTL interface.
It should be understood that, in the communication network module 200, the mobile network sub-module 210, the satellite navigation short message sub-module 220, and the satellite communication sub-module 230 are provided, and specific types of the respective sub-modules are only used as examples and are not limited, and when communication requirements are met, other types of communication networks may be adopted for the respective sub-modules; for example, the mobile network sub-module 210 employs a 4G unexpected mobile network, such as a 5G network; the satellite communication sub-module 230 may also employ a satellite network that is unexpected to Thuraya satellite network, without limitation.
Referring to fig. 4, fig. 4 is a system structural diagram of a multimode communication device according to an embodiment of the present application.
Illustratively, the multimode communication device further comprises a power module 400 and a user interface 500, wherein the power module 400 and the user interface 500 are respectively connected with the main control module.
Optionally, the multimode communication device is further connected to terminals or transfer stations such as the short message ground station 221, the cloud server 610, the PC terminal 620, the mobile phone terminal 630, and the like; in some embodiments, the satellite navigation short message submodule 220 is a beidou short message submodule, the short message ground station 221 is a beidou short message ground station, the satellite communication submodule 230 is a Thuraya satellite communication submodule, and the mobile network submodule 210 is a 4G communication submodule.
Illustratively, the multimode communication device provided in the embodiment of the present application connects three communication systems, that is, a Thuraya satellite communication sub-module, a 4G communication sub-module, and a beidou short message sub-module, through the main control module 100, and the main control system includes the power supply module 400, the user interface 500, and the like. The three communication systems are connected with the cloud server 610, and a user monitors the systems and the transparent transmission data through the PC terminal 620 or the mobile phone terminal 630. The user interface 500 may be connected to an onboard device to perform command and pass-through functions.
Illustratively, the system can simultaneously use three communication networks, namely a 4G communication network, a Thuraya satellite communication network and a Beidou short message communication network. When the terminal carrier is in the 4G signal coverage area, the 4G network is preferentially used, so that the communication charge can be reduced. When the terminal carrier is in a region without 4G network coverage, a Thuraya satellite network is used for monitoring, the Beidou short message is used as a standby network, and the terminal carrier can be used emergently under the condition that the two channels fail, so that the safety and the reliability of the terminal carrier are guaranteed to the maximum extent.
In some embodiments, the master control module 100 is responsible for device management and data processing of the entire multimode communication device, and the flow is exemplified as follows:
after the multimode communication device is powered on, the initialization of the peripheral devices is first performed, and after the initialization is completed, the network access of each sub-module of the communication network module 200 is started. And when the network access of each sub-module is successful, entering a service program. The software manages each sub-module and processes user data and commands in the service program, and transmits and receives corresponding data according to the configuration, thereby realizing the final communication function of the multimode communication equipment.
Illustratively, the communication network handover function of the multimode communication device is illustrated in connection with a drone, it being understood that this is by way of example only and not by way of limitation; according to the foregoing, the multimode communication device can make full use of the advantages of each communication network, and in combination with the actual application test of the unmanned aerial vehicle, design the following switching rules:
after the multimode communication equipment is powered on, reading current GPS/BD information, and preferentially selecting a 4G network for communication according to the flight altitude information of the unmanned aerial vehicle terminal carrier and the 4G network signal condition, so that the satellite flow charge can be reduced, and the use cost can be reduced; when the 4G network signal is poor or the terminal carrier flies over a certain height (the user can set the height by himself), the multimode communication equipment is automatically switched to use the Thuraya satellite network to carry out unmanned aerial vehicle measurement and control, and the safety and the reliability of communication are guaranteed.
Beidou short message communication is used as a system emergency communication mode and is in a communicable state all the time. When the multimode communication equipment receives the emergency instruction, the system enters an emergency response mode, and at the moment, three communication modes are tried to be used for monitoring, so that the real-time performance and the success rate of emergency handling of the instruction by an operator are greatly improved, and the flight safety of a terminal carrier is guaranteed.
Optionally, the multimode communication device takes the user instruction as the highest priority of the communication channel, and the user can change the communication network switching rule through terminal software.
In some implementation scenes, the multimode communication equipment can be applied to communication in the flight process of the unmanned aerial vehicle, and the operation is stable and reliable. Carry this multimode communication equipment's unmanned aerial vehicle, can greatly improve unmanned aerial vehicle control distance, user's accessible terminal software, real time monitoring unmanned aerial vehicle flight state. When the conventional communication means goes wrong, the satellite communication can be rapidly switched to command the unmanned aerial vehicle to return, so that the safety and the reliability of the unmanned aerial vehicle flight are guaranteed to the maximum extent.
In some implementation scenarios, the multimode communication device provided in the embodiment of the present application fully considers the communication rate, coverage, reliability, communication rate, traffic cost, device weight, and other factors of the existing narrowband satellite communication system, and skillfully combines the three communication modes of the 4G network, the Thuraya satellite network, and the beidou short message. And the 4G network is preferentially used in the place with better 4G network coverage, so that the communication charge can be greatly reduced. When the terminal is in the area without the 4G network, the terminal can be seamlessly switched to a Thuraya satellite network, and the reliability and the communication distance of communication are guaranteed. As the civil Beidou short message communication frequency is 60s, but the communication module is small and exquisite, the price is low, the communication card can be used for the whole life, and the like, the civil Beidou short message communication frequency is used as a standby link, and the Beidou short message communication link is started under the condition that the civil Beidou short message communication frequency and the communication module fail to work, so that the safety and the reliability of the unmanned aerial vehicle are guaranteed to the maximum extent.
In all embodiments of the present application, the terms "large" and "small" are relatively speaking, and the terms "upper" and "lower" are relatively speaking, so that descriptions of these relative terms are not repeated herein.
It should be appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the present application," or "as an alternative implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in this embodiment," "in the examples of the present application," or "as an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.
In various embodiments of the present application, it should be understood that the size of the serial number of each process described above does not mean that the execution sequence is necessarily sequential, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. The multimode communication equipment is characterized by comprising a main control module, a communication network module and an interface component;
the communication network module comprises a mobile network sub-module, a satellite navigation short message sub-module and a satellite communication sub-module, and the mobile network sub-module, the satellite navigation short message sub-module and the satellite communication sub-module are respectively connected with the main control module;
the interface assembly comprises an aerial plug interface, a first radio frequency interface and a second radio frequency interface, the aerial plug interface is connected with the main control module, the first radio frequency interface is connected with the satellite navigation short message sub-module, and the second radio frequency interface is connected with the satellite communication sub-module.
2. The multimode communication device of claim 1, wherein the satellite communication submodule comprises a satellite communication submodule and an interface submodule, and wherein the satellite communication submodule is connected to the master control module through the interface submodule.
3. The multimode communication device of claim 2, wherein the satellite communication submodule comprises an RF transceiver and a power management unit, the power management unit is coupled to the RF transceiver, the power management unit is coupled to the interface submodule, and an operating frequency of the RF transceiver is L-band.
4. The multimode communication device according to claim 2 or 3, wherein the interface sub-module is connected to the main control module via an RS232 serial port.
5. The multimode communication device of claim 1, wherein the mobile network sub-module is a 4G communication sub-module.
6. The multimode communication device of claim 1, wherein the satellite navigation short message submodule is a Beidou short message submodule.
7. The multimode communication device of claim 6, wherein the Beidou short message service module is connected to the master control module through a TTL interface.
8. The multimode communication device of claim 1, wherein the satellite communication sub-module is a Thuraya satellite communication sub-module.
9. The multimode communication device of claim 8, wherein a Thuraya satellite communication sub-module is coupled to the master module via a TTL interface.
10. The multimode communication device of claim 1, further comprising a power module and a user interface, wherein the power module and the user interface are respectively connected to the master control module.
CN202110257083.2A 2021-03-09 2021-03-09 Multimode communication equipment Pending CN112838877A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113596775A (en) * 2021-07-23 2021-11-02 中国科学院地理科学与资源研究所 Unmanned aerial vehicle communication system
CN114598339A (en) * 2022-03-09 2022-06-07 西安京东天鸿科技有限公司 Unmanned aerial vehicle communication equipment and unmanned aerial vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113596775A (en) * 2021-07-23 2021-11-02 中国科学院地理科学与资源研究所 Unmanned aerial vehicle communication system
CN114598339A (en) * 2022-03-09 2022-06-07 西安京东天鸿科技有限公司 Unmanned aerial vehicle communication equipment and unmanned aerial vehicle

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