CN110474971A - A kind of wide area low-power consumption Internet of Things communication system and its transmission method - Google Patents

A kind of wide area low-power consumption Internet of Things communication system and its transmission method Download PDF

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Publication number
CN110474971A
CN110474971A CN201910715013.XA CN201910715013A CN110474971A CN 110474971 A CN110474971 A CN 110474971A CN 201910715013 A CN201910715013 A CN 201910715013A CN 110474971 A CN110474971 A CN 110474971A
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China
Prior art keywords
satellite
internet
things
module
information
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陈牧
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Tianchen Xingtong (Shenzhen) Technology Co., Ltd
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Xi'an Tianchen Quantum Communication Technology Co Ltd
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Priority to CN201910715013.XA priority Critical patent/CN110474971A/en
Publication of CN110474971A publication Critical patent/CN110474971A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/19Earth-synchronous stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/12Network-specific arrangements or communication protocols supporting networked applications adapted for proprietary or special purpose networking environments, e.g. medical networks, sensor networks, networks in a car or remote metering networks
    • 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

Abstract

The invention discloses a kind of wide area low-power consumption Internet of Things communication systems, belong to internet of things field;A kind of wide area low-power consumption Internet of Things communication system, including multiple internet-of-things terminals, data are received by the internet-of-things terminal module to be pre-processed, and it is transmitted to satellite RF unit and realizes frequency conversion, so that Synchronous-Orbiting Communication Satellite can receive signal by the transmitting behavior of two dimensional phased array antenna, Synchronous-Orbiting Communication Satellite receives after information and is transmitted to satellite things-internet gateway station, cloud computing center is received and be transmitted to by satellite things-internet gateway station, after Cloud Server is handled and is uploaded to client's Internet of Things application platform;The beneficial effects of the present invention are: making all kinds of internet-of-things terminals form the internet of things of a wide area using geosynchronous satellite and gateway station, realizing the Internet of Things Network Communication of wide area;Using the design of low-power consumption, by the monitoring to data, realizes that terminal satellite RF unit independently wakes up and closes, extend the terminal works time.

Description

A kind of wide area low-power consumption Internet of Things communication system and its transmission method
Technical field
The present invention relates to internet of things field, and in particular to a kind of wide area low-power consumption Internet of Things communication system and its transmission Method.
Background technique
Existing Internet of Things is mainly based upon operator's ground public mobile communications network or self-built gateway build it is close The closing internet of things of distance, internet-of-things terminal realize short-range channel radio using the lower frequency of several hundred MHz such as VHF UHF Letter;It must rely on operator's ground network or access gateway, in the regions such as remote districts, ocean, aerial, in operator Torus network can not cover or can not arrange the region of access gateway, it is impossible to provide the communication connection of Internet of Things.
Application No. is 201410845811.1 Chinese patent propose it is a kind of based on big-dipper satellite positioning refrigerating box it is special With the method for things-internet gateway.The patent realizes that location information acquires using big-dipper satellite positioning function, and by position, temperature etc. Information passes through GPRS transmission to platform;Therefore the positioning function only played in this patent of invention Satellite, and Internet of Things transmits function GPRS data communication service can be provided by operator to realize.
Application No. is 201711416665.0 Chinese patent propose it is a kind of based on multiple Internet of Things moonlets composition Internet of Things constellation realizes the system that internet of things data acquisition transmits, and it is several hundred arrive that the Internet of Things satellite in the patent, which is orbit altitude, 1000 kilometers or so of LEO Small Satellite, and need tens even thousands of to be just able to achieve a wide range of ground in real time and cover It covers, and need several years from the offer service that puts into effect is implemented into, current quick flourishing Internet of Things can not be solved and answered Use development need.
Summary of the invention
Present invention solves the problem in that providing a kind of wide area low-power consumption Internet of Things communication system, existing geo-stationary orbit is utilized Telecommunication satellite realizes the wide area network communication function under cross-region, at a distance a variety of application environments.
The present invention is to be achieved through the following technical solutions:
A kind of wide area low-power consumption Internet of Things communication system, including at sensor receive-transmit system, satellite and mobile client Reason system;
The sensor receive-transmit system includes sensor data interface, for receiving the detection information of external sensor;Object Networked terminals module receives and is transmitted to satellite RF unit from the information that sensor data interface transmits;Satellite RF unit, Frequency conversion is carried out to the information for being sent to satellite and is sent to two dimensional phased array antenna;Two dimensional phased array antenna, by the letter after frequency conversion Breath is sent to synchronous or middle low-earth-orbit satellite;
The satellite is synchronous or middle low-earth-orbit satellite, for the information received to be sent to terrestrial information processing It stands;
The client process system includes satellite things-internet gateway station, for receiving the information or Xiang Weixing that satellite transmits Send acquisition instructions;Cloud service center is sent to industry user or connects for receiving the information that satellite things-internet gateway station is transmitted The acquisition instructions for receiving industry user are sent to satellite things-internet gateway station.
Further, the internet-of-things terminal module: including external interface, Base Band Unit and processing unit, the base band Unit is to the protocol packing for carrying out being suitble to satellite channel transmission from sensing data port data;And increase redundant correcting symbol The sudden error code correction caused for remote-wireless channel transmission data;The Base Band Unit is also used to will be after modulating-coding Data packet grouping, and band spectrum modulation is carried out to the data packet after grouping, adapts it to the transmission of remote satellite channel;
For the processing unit for wake-up or suspend mode Base Band Unit, described wake up includes timing wake-up and fixed point wake-up, institute It states timing wake-up and wakes up the Internet of Things for waking up in specified region for waking up the internet-of-things terminal in designated place, the fixed point Network termination;Or the acquisition instructions that ground information handling stations issue are realized with responding and wake up vehicle-mounted internet-of-things terminal completes to required The acquisition and transmission of data;
Satellite RF unit: including up-converter module and down conversion module, the up-converter module is to being sent to satellite Information carries out wave band frequency conversion, and the down conversion module carries out lower wave band frequency conversion to the information that satellite returns;
Two dimensional phased array antenna: two-dimensional scanning is realized by pitching orientation, and for being sent to Synchronous-Orbiting Communication Satellite The wave beam of radiofrequency signal tracks and modulating-coding.
Satellite things-internet gateway station: including multiple multichannel gateways being in parallel, the multichannel gateway is set Standby includes radio frequency combiner device, multichannel gateway module, network module and power module;When receiving information, radio frequency combiner device Satellite Internet of Things information and branch for receiving satellite RF unit give multichannel gateway module;When sending information, radio frequency point After combiner is used to for the satellite Internet of Things information of multichannel gateway module being combined, it is transmitted to satellite RF unit;Receive information When, multichannel gateway module will be demodulated into base-band information from the received satellite Internet of Things information of radio frequency combiner device, then lead to Network interface transfers are crossed to ground network;When sending information, the base-band information of ground network and modulating-coding are received into satellite object Networked information format is transmitted to satellite by satellite RF unit, satellite communication antena;When receiving information, network module is used for Ground network is transmitted to after the base-band information that multichannel gateway module demodulates is collected;When sending information, network module is used for will At most channel gateway module is sent to after the modulate baseband information that ground network transmits;Power module is respectively used to give multichannel net Close module, network module and the power supply of radio frequency combiner device.
Further, the multichannel gateway module includes external interface, satellite Internet of Things communication module, multichannel satellite Things-internet gateway module;
Wherein, external interface transmits for realizing with the information of network module and radio frequency combiner device;
Satellite Internet of Things communication module for realizing satellite Internet of Things information and baseband signal conversion;
Multichannel satellite things-internet gateway module is used to complete the control and information transmission of multichannel communication multiple telecommunication module.
Satellite Internet of Things communication module includes multitasking unit, is connected with around the multi-task unit and connects with it Logical FLASH module, indicating lamp module, satellite Internet of Things channel module, clock module, watchdog module, RS232/RS485 are received Send out device module and Network Interface Module;The satellite Internet of Things channel module is also connected with wireless interface;The RS232/ RS485 transceiver module also passes through data interface module and is connected with the power module;The Network Interface Module also with defend Star things-internet gateway module is connected;Wherein, satellite things-internet gateway module is by 8 satellite things-internet gateway channel module groups At;The satellite Internet of Things channel module in parallel for being equipped with 8 different frequencies on the multichannel gateway module, each satellite Internet of Things letter Road module forms the frequency range of a complete network management module, and the sub- communication unit of frequency partition is used when there is signal access.
Further, the sensor receive-transmit system further includes for giving vehicle-mounted internet-of-things terminal power supply lithium ion battery mould Block;Drive control unit for internet-of-things terminal internal control;For the data penetration transmission between internet-of-things terminal and central station Synchronous-Orbiting Communication Satellite;
The lithium ionic cell module respectively with drive control unit, internet-of-things terminal module, sensor data interface, micro- Type radio frequency unit and two dimensional phased array antenna are interconnected, and the drive control unit is also connected with internet-of-things terminal module, The internet-of-things terminal module is also connected with satellite RF unit and sensor data interface respectively, the satellite RF unit Also it is connected with two dimensional phased array antenna.
Further, the sensor receive-transmit system includes sensor data interface, for receiving the inspection of external sensor Measurement information;Internet-of-things terminal module receives and is transmitted to satellite RF unit from the information that sensor data interface transmits;Satellite Radio frequency unit carries out frequency conversion to the information for being sent to satellite and is sent to two dimensional phased array antenna;Two dimensional phased array antenna will become Information after frequency is sent to synchronous or middle low-earth-orbit satellite;
The satellite is synchronous or middle low-earth-orbit satellite, for the information received to be sent to terrestrial information processing It stands;
The client process system includes satellite things-internet gateway station, for receiving the information or Xiang Weixing that satellite transmits Send acquisition instructions;Cloud service center is sent to industry user or connects for receiving the information that satellite things-internet gateway station is transmitted The acquisition instructions for receiving industry user are sent to satellite things-internet gateway station.
Data are received by the internet-of-things terminal module to be pre-processed, and are transmitted to satellite RF unit and are realized and become Frequently, so that Synchronous-Orbiting Communication Satellite can receive signal by the transmitting behavior of two dimensional phased array antenna, geo-stationary orbit is logical Letter satellite receives after information and is transmitted to satellite things-internet gateway station, is received by satellite things-internet gateway station and is transmitted to cloud computing Center after Cloud Server is handled and is uploaded to client's Internet of Things application platform.
Further, the internet-of-things terminal includes external interface and Base Band Unit, and the internet-of-things terminal passes through external Sensor in interface and designated place or specified region is connected with each other, and internet-of-things terminal receives the sensing that external interface transmits After device data, Base Band Unit carries out the modulating-coding for adapting to satellite channel transmission to data, and increases in modulating-coding The redundant correcting symbol of 4/5 encoding rate is to sudden error code correction;The Base Band Unit is to from sensing data port data Carry out the protocol packing for being suitble to satellite channel transmission;And increases redundant correcting symbol and draw for remote-wireless channel transmission data The sudden error code correction of hair;
Internet-of-things terminal further includes processing unit, and the processing unit is for wake-up or suspend mode Base Band Unit, the wake-up It is waken up including timing wake-up and fixed point, the timing wake-up is used to wake up the internet-of-things terminal in designated place, and the fixed point is called out It wakes up for waking up the internet-of-things terminal in specified region;Or the acquisition instructions that ground information handling stations issue are realized and responds and calls out Internet-of-things terminal of waking up completes acquisition and transmission to required data.
Further, if the satellite RF unit upload information, the internet-of-things terminal module passes through sensing data Interface acquires data, and is modulated coding to the effective information received;The up-converter module of satellite RF unit is to modulation Upload data after coding are from L-band up-conversion to L, S, C, X, Ku, Ka or EHF frequency range band signal, two dimensional phased array antenna To the upload data receiver after frequency conversion and after amplifying, it is sent to synchronous or middle low-earth-orbit satellite;
If the satellite RF unit download information, the down conversion module of satellite RF unit is to synchronous or middle low orbit The information that telecommunication satellite transmits downconverts to L-band, internet-of-things terminal mould from L, S, C, X, Ku, Ka or EHF frequency range band signal Sensor is sent to after block reception down coversion information and by outbound data interface.
Further, when vehicle, ship or aircraft when mobile in specified region, two dimensional phased array antenna passes through driving The direction of unit, drive control unit adjustment wave beam, realizes and is directed at low-earth-orbit satellite synchronous or middle with tracking;Wherein, it drives Dynamic control unit receives the information of GPS positioning module and posture course transmitter respectively, determines that two dimensional phased array antenna is current Position, posture and course information obtain two dimensional phased array antenna according to the requirement of synchronous or middle low-earth-orbit satellite and are directed at need The pitch angle and orientation angles of adjustment, are then sent to driving unit;Driving unit according to pitch angle and orientation angles into Row adjustment makes the wave beam of two dimensional phased array antenna to satelloid.
Further, including multiple multichannel gateways being in parallel, the multichannel gateway includes radio frequency point Combiner, multichannel gateway module, network module and power module;
When receiving information, radio frequency combiner device is used to receive the satellite Internet of Things information of satellite RF unit and branch is to more Channel gateway module;When sending information, radio frequency combiner device is used to for the satellite Internet of Things information of multichannel gateway module being combined Afterwards, it is transmitted to satellite RF unit;The signal that the road radio frequency Fen He device is also used to receive is transmitted to satellite Internet of Things mould Block, satellite Internet of Things module are connected by outbound data interface with external ground network interface, and external ground network interface will Network control server of the information by the Internet transmission to cloud service center, network control server by utilizing information flag identification user's letter Breath, specified client is transferred information to by terrestrial interconnection net;Or user client passes through mobile terminal APP to cloud service Request is transmitted to satellite things-internet gateway station, and specified satellite by the acquisition of center network control server application information, network control server Things-internet gateway is opened satellite with the satellite internet-of-things terminal that client needs to acquire information and is connect, and by the data of specified sensor By internet-of-things terminal station interface collect after, emitted by radio frequency unit to satellite, and by satellite things-internet gateway station receive after Cloud service center is transmitted to by ground network, relays to the user terminal for initiating acquisition signal
When receiving information, multichannel gateway module will be from the received satellite Internet of Things information decoding demodulation of radio frequency combiner device For base-band information, then pass through network interface transfers to ground network;When sending information, the base-band information and tune of ground network are received System is encoded into satellite Internet of Things information format, is transmitted to satellite by satellite RF unit, satellite communication antena;
When receiving information, network module is for being transmitted to ground after collecting the base-band information that multichannel gateway module demodulates Network;When sending information, network module is used to that at most channel gateway will to be sent to after modulate baseband information that ground network transmits Module.
Power module is respectively used to power to multichannel gateway module, network module and radio frequency combiner device.
Further, the multichannel gateway module includes external interface, satellite Internet of Things communication module, multichannel satellite Things-internet gateway module;
Wherein external interface transmits for realizing with the information of network module and radio frequency combiner device;
Satellite Internet of Things communication module for realizing satellite Internet of Things information and baseband signal conversion;
Multichannel satellite things-internet gateway module is used to complete the distribution and information transmission of multichannel communication multiple telecommunication module;Described in one The internet-of-things terminal access amount of satellite Internet of Things communication module is less than 2000;If the terminal quantity worked at the same time increases to 2000 When a above or transmission rate is larger than 120kbps, then another terminal for needing to communicate is accessed into same gateway or difference Gateway idle channel;The gateway channels of the access are connected in ground LAN, and are passed by ground network by internet Transport to Cloud Server;
The Cloud Server is equipped with network control server, and the network control server is according to gateway accessing quantity and frequency bandwidth Whether resource judges gateway channels congestion, if there is congestion, will newly request successively to enable sky by agreement sequence Idle channel, it is on the contrary then idle channel need not be started;If all idle channels of a gateway station are all occupied, network control server meeting Enable next satellite things-internet gateway station;When starting next satellite things-internet gateway station, if user in the net being certified, It then can complete to dock with geosynchronous satellite, otherwise refusal access;Certification is for identifying and internet-of-things terminal in the net Between the network identification mark that accesses.
Compared with prior art, the beneficial effects of the present invention are:
Using geosynchronous satellite and gateway station, all kinds of internet-of-things terminals is made to form the internet of things of a wide area, realized The Internet of Things Network Communication of wide area;Using the remote covering of geosynchronous satellite, it is close to solve traditional Internet of Things transmission range, can not The problem of realizing the information collection of trans-regional covering;Using the design of low-power consumption, by the monitoring to data, realize that terminal is defended Star radio frequency unit independently wakes up and closes, and reduces daily standby power consumption, effectively saving battery level, substantially prolongs terminal Working time.
Detailed description of the invention
Fig. 1 is the wide area low-power consumption Internet of Things network communication system figure of geo-stationary orbit communications satellite of the invention;
Fig. 2 is the flow diagram of receiving and transmission information of the invention;
Fig. 3 is Synchronous-Orbiting Communication Satellite internet-of-things terminal composition schematic diagram of the invention;
Fig. 4 is that phased array antenna of the invention is tracked to star flow chart;
Fig. 5 is low power consumption control flow chart of the invention;
Fig. 6 is satellite things-internet gateway station composed structure schematic diagram of the invention;
Fig. 7 is multichannel gateway module composed structure schematic diagram of the invention;
Fig. 8 is satellite Internet of Things channel module composed structure schematic diagram of the invention.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to Convenient for description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of wide area low-power consumption Internet of Things communication system, including at sensor receive-transmit system, satellite and mobile client Reason system;
Sensor receive-transmit system includes sensor data interface, for receiving the detection information of external sensor;Internet of Things Terminal module receives and is transmitted to satellite RF unit from the information that sensor data interface transmits;Satellite RF unit, to hair The information for being sent to satellite carries out frequency conversion and is sent to two dimensional phased array antenna;Two dimensional phased array antenna sends out the information after frequency conversion It send to synchronous or middle low-earth-orbit satellite;
Satellite is synchronous or middle low-earth-orbit satellite, for the information received to be sent to terrestrial information treating stations;
Client process system includes satellite things-internet gateway station, for receiving information that satellite transmits or sending to satellite Acquisition instructions;Cloud service center is sent to industry user or reception row for receiving the information that satellite things-internet gateway station is transmitted The acquisition instructions of industry user are sent to satellite things-internet gateway station;Using geosynchronous satellite and gateway station, make all kinds of Internet of Things Terminal forms the internet of things of a wide area, realizes the Internet of Things Network Communication of wide area;Using the remote covering of geosynchronous satellite, Solves the problem of traditional Internet of Things transmission range is close, cannot achieve the information collection of trans-regional covering;Using low-power consumption Design realizes that terminal satellite RF unit independently wakes up and closes, reduces daily standby function by the monitoring to data Consumption, effectively saving battery level, substantially prolong the terminal works time.
Internet-of-things terminal module: including external interface, Base Band Unit and processing unit, Base Band Unit is to from sensor number The protocol packing for being suitble to satellite channel transmission is carried out according to port data;And increase redundant correcting symbol for remote-wireless channel Transmit the sudden error code correction that data cause;Base Band Unit is also used to the data packet grouping after modulating-coding, and to grouping Data packet afterwards carries out band spectrum modulation, adapts it to remote satellite channel transmission;
Processing unit is for wake-up or suspend mode Base Band Unit, and waking up includes timing wake-up and fixed point wake-up, and timing wake-up is used In waking up the internet-of-things terminal in designated place, fixed point is waken up for waking up the internet-of-things terminal in specified region;Or to ground The acquisition instructions that information handling stations issue realize the acquisition and biography for responding and waking up vehicle-mounted internet-of-things terminal completion to required data It is defeated;
Satellite RF unit: including up-converter module and down conversion module, up-converter module is to the information for being sent to satellite Wave band frequency conversion is carried out, down conversion module carries out lower wave band frequency conversion to the information that satellite returns;
Two dimensional phased array antenna: two-dimensional scanning is realized by pitching orientation, and for being sent to Synchronous-Orbiting Communication Satellite The wave beam of radiofrequency signal tracks and modulating-coding.
Satellite things-internet gateway station: including multiple multichannel gateways being in parallel, multichannel gateway includes penetrating Frequency division combiner, multichannel gateway module, network module and power module;When receiving information, radio frequency combiner device is for receiving The satellite Internet of Things information and branch of satellite RF unit give multichannel gateway module;When sending information, radio frequency combiner device is used After by the combining of the satellite Internet of Things information of multichannel gateway module, it is transmitted to satellite RF unit;When receiving information, multichannel Gateway module will be demodulated into base-band information from the received satellite Internet of Things information of radio frequency combiner device, then pass through network interface It is transmitted to ground network;When sending information, the base-band information of ground network and modulating-coding are received into satellite Internet of Things information lattice Formula is transmitted to satellite by satellite RF unit, satellite communication antena;When receiving information, network module is used for multichannel net It closes after the base-band information that module demodulates collects and is transmitted to ground network;When sending information, network module is for passing ground network At most channel gateway module is sent to after the modulate baseband information come;Power module is respectively used to multichannel gateway module, net Network module and the power supply of radio frequency combiner device.
Multichannel gateway module includes external interface, satellite Internet of Things communication module, multichannel satellite things-internet gateway mould Block;
Wherein, external interface transmits for realizing with the information of network module and radio frequency combiner device;
Satellite Internet of Things communication module for realizing satellite Internet of Things information and baseband signal conversion;
Multichannel satellite things-internet gateway module is used to complete the control and information transmission of multichannel communication multiple telecommunication module.
Satellite Internet of Things communication module includes multitasking unit, is connected with around multi-task unit and connects with it FLASH module, indicating lamp module, satellite Internet of Things channel module, clock module, watchdog module, RS232/RS485 transceiver Module and Network Interface Module;Satellite Internet of Things channel module is also connected with wireless interface;RS232/RS485 transceiver mould Block also passes through data interface module and is connected with power module;Network Interface Module is also connected with satellite things-internet gateway module It is logical;Wherein, satellite things-internet gateway module is made of 8 satellite things-internet gateway channel modules;On multichannel gateway module simultaneously Connection is equipped with the satellite Internet of Things channel module of 8 different frequencies, and each satellite Internet of Things channel module forms a complete network management The frequency range of module uses the sub- communication unit of frequency partition when there is signal access.
Sensor receive-transmit system further includes for giving vehicle-mounted internet-of-things terminal power supply lithium ionic cell module;For Internet of Things The drive control unit of terminal inner control;Geo-stationary orbit for the data penetration transmission between internet-of-things terminal and central station communicates Satellite;
Lithium ionic cell module respectively with drive control unit, internet-of-things terminal module, sensor data interface, miniature penetrate Frequency unit and two dimensional phased array antenna are interconnected, and drive control unit is also connected with internet-of-things terminal module, and Internet of Things is whole End module is also connected with satellite RF unit and sensor data interface respectively, satellite RF unit also with two dimensional phased battle array day Line is connected.
Sensor receive-transmit system includes sensor data interface, for receiving the detection information of external sensor;Internet of Things Terminal module receives and is transmitted to satellite RF unit from the information that sensor data interface transmits;Satellite RF unit, to hair The information for being sent to satellite carries out frequency conversion and is sent to two dimensional phased array antenna;Two dimensional phased array antenna sends out the information after frequency conversion It send to synchronous or middle low-earth-orbit satellite;
Satellite is synchronous or middle low-earth-orbit satellite, for the information received to be sent to terrestrial information treating stations;
Client process system includes satellite things-internet gateway station, for receiving information that satellite transmits or sending to satellite Acquisition instructions;Cloud service center is sent to industry user or reception row for receiving the information that satellite things-internet gateway station is transmitted The acquisition instructions of industry user are sent to satellite things-internet gateway station.
Data are received by internet-of-things terminal module to be pre-processed, and are transmitted to satellite RF unit and are realized frequency conversion, with Synchronous-Orbiting Communication Satellite is set to receive signal, Synchronous-Orbiting Communication Satellite by the transmitting behavior of two dimensional phased array antenna Receive after information and be transmitted to satellite things-internet gateway station, receives and be transmitted to cloud computing center by satellite things-internet gateway station, After Cloud Server is handled and it is uploaded to client's Internet of Things application platform.
Internet-of-things terminal includes external interface and Base Band Unit, and internet-of-things terminal is by external interface and designated place or refers to The sensor determined in region is connected with each other, after internet-of-things terminal receives the sensing data that external interface transmits, Base Band Unit Modulating-coding for adapting to satellite channel transmission is carried out to data, and the redundancy for increasing in modulating-coding by 4/5 encoding rate is entangled Mismark is to sudden error code correction;Base Band Unit carries out suitable satellite channel transmission to from sensing data port data Protocol packing;And increase sudden error code correction of the redundant correcting symbol for the initiation of remote-wireless channel transmission data;
Internet-of-things terminal further includes processing unit, and for processing unit for wake-up or suspend mode Base Band Unit, waking up includes timing It wakes up and fixed point wakes up, timing wake-up is used to wake up the internet-of-things terminal in designated place, and fixed point wakes up for waking up specified area Internet-of-things terminal in domain;Or the acquisition instructions that ground information handling stations issue are realized with responding and wake up internet-of-things terminal completes Acquisition and transmission to required data.
If satellite RF unit upload information, internet-of-things terminal module acquires data by sensor data interface, and right The effective information received is modulated coding;The up-converter module of satellite RF unit to the upload data after modulating-coding from L-band up-conversion is to L, S, C, X, Ku, Ka or EHF frequency range band signal, and two dimensional phased array antenna is to the upload data after frequency conversion After receiving and amplifying, it is sent to synchronous or middle low-earth-orbit satellite;
If satellite RF unit download information, the down conversion module of satellite RF unit communicates synchronous or middle low orbit The information that satellite transmits downconverts to L-band from L, S, C, X, Ku, Ka or EHF frequency range band signal, and internet-of-things terminal module connects It accepts after frequency conversion information and sensor is sent to by outbound data interface.
When mobile in specified region of vehicle, ship or aircraft, two dimensional phased array antenna passes through driving unit, driving Control unit adjusts the direction of wave beam, realizes and is directed at low-earth-orbit satellite synchronous or middle with tracking;Wherein, drive control unit Respectively receive GPS positioning module and posture course transmitter information, determine the current position of two dimensional phased array antenna, posture and Course information obtains two dimensional phased array antenna according to the requirement of synchronous or middle low-earth-orbit satellite and is directed at the pitch angle that need to be adjusted Degree and orientation angles, are then sent to driving unit;Driving unit is adjusted according to pitch angle and orientation angles makes two dimension The wave beam of phased array antenna is to satelloid.
Including multiple multichannel gateways being in parallel, multichannel gateway includes radio frequency combiner device, multichannel Gateway module, network module and power module;
When receiving information, radio frequency combiner device is used to receive the satellite Internet of Things information of satellite RF unit and branch is to more Channel gateway module;When sending information, radio frequency combiner device is used to for the satellite Internet of Things information of multichannel gateway module being combined Afterwards, it is transmitted to satellite RF unit;The signal that the road radio frequency Fen He device is also used to receive is transmitted to satellite Internet of Things module, defends Star Internet of Things module is connected by outbound data interface with external ground network interface, and external ground network interface leads to information The network control server of the Internet transmission to cloud service center is crossed, network control server by utilizing information flag recognition user information passes through Terrestrial interconnection net transfers information to specified client;Or user client passes through mobile terminal APP to cloud service center net The acquisition of server application information is controlled, request is transmitted to satellite things-internet gateway station, and specified satellite Internet of Things by network control server Gateway is opened satellite with the satellite internet-of-things terminal that client needs to acquire information and is connect, and the data of specified sensor are passed through object Networked terminals station interface collect after, emitted by radio frequency unit to satellite, and by satellite things-internet gateway station receive after by ground Network transmission relays to the user terminal for initiating acquisition signal to cloud service center
When receiving information, multichannel gateway module will be from the received satellite Internet of Things information decoding demodulation of radio frequency combiner device For base-band information, then pass through network interface transfers to ground network;When sending information, the base-band information and tune of ground network are received System is encoded into satellite Internet of Things information format, is transmitted to satellite by satellite RF unit, satellite communication antena;
When receiving information, network module is for being transmitted to ground after collecting the base-band information that multichannel gateway module demodulates Network;When sending information, network module is used to that at most channel gateway will to be sent to after modulate baseband information that ground network transmits Module.
Power module is respectively used to power to multichannel gateway module, network module and radio frequency combiner device.
Multichannel gateway module includes external interface, satellite Internet of Things communication module, multichannel satellite things-internet gateway mould Block;
Wherein external interface transmits for realizing with the information of network module and radio frequency combiner device;
Satellite Internet of Things communication module for realizing satellite Internet of Things information and baseband signal conversion;
Multichannel satellite things-internet gateway module is used to complete the distribution and information transmission of multichannel communication multiple telecommunication module;One satellite The internet-of-things terminal access amount of Internet of Things communication module is less than 2000;If the terminal quantity worked at the same time increase to 2000 with When upper or transmission rate is larger than 120kbps, then another terminal for needing to communicate is accessed into same gateway or different gateways Idle channel;The gateway channels of access are connected in ground LAN, and are taken by ground network by the Internet transmission to cloud Business device;
Cloud Server is equipped with network control server, and network control server is sentenced according to gateway accessing quantity and frequency bandwidth resource Whether congestion will newly request successively to enable idle channel by agreement sequence, anti-a disconnected gateway channels if there is congestion Need not then start idle channel;If all idle channels of a gateway station are all occupied, network control server can enable next A satellite things-internet gateway station;It, then can be with if user in the net being certified when starting next satellite things-internet gateway station Geosynchronous satellite completes docking, otherwise refusal access;Certification is for identifying the net accessed between internet-of-things terminal in net Network identifier.
According to the size of network size, gateway can also realize seamless stacking, realize network capacity or industry user and industry The extension of business;Network size judges according to the quantity of terminal in netting, if 500 the following are small-scale, 50,000 the above are big rule Mould, centre are medium-scale;
Internet of Things service terminal software system is stored in cloud by internet cloud cloud computing center, for satellite Internet of Things network manager service Information control, management and forwarding in the satellite Internet of Things network diagram of device, multiple gateway station and multiple terminals composition.
Things-internet gateway station is made of multiple things-internet gateways, and a gateway has 8 channel modules, wherein each channel mould Block is single channel module, can be connected with multiple terminals.The module in one channel can be with the net equipped with only network identifier The internet-of-things terminal of interior certification realizes satellite connection;If multiple internet-of-things terminals access simultaneously, according to the different frequency of its sending With the signal of spreading code configuration, things-internet gateway can support multiple orthogonal frequency channels Internet of Things nets on a single channel The channel closed can communicate simultaneously with multiple terminals, in order to which the signal guaranteed between terminal will not interfere with each other, can will expand Frequency code is configured by orthogonal manner, realizes the multiplexing of frequency and time.One channel supports the channel of multiple orthogonal frequencies, a list Channel can distribute multiple frequency bands in specified transmission bandwidth and use for terminal, pass through point of time slot in time-division operating mode Match, a frequency can be shared between terminal, timesharing uses;The access amount maximum in one channel can support 2000 Internet of Things ends The access at end, when the terminal quantity that terminal is sent to gateway in multiple internet-of-things terminals data rate is larger or works at the same time increases Added-time, the problem of due to bandwidth, when the biggish end message of single channel reception transmission rate, can take entire frequency band and when Between, therefore the terminal quantity that single channel can communicate simultaneously just reduces, i.e., single channel module while access terminal number Amount can be reduced, if need to communicate with stylish terminal, just be linked into other single channels;Things-internet gateway can be by opening at this time New bandwidth or by the terminal distribution of connection to other channel modules;If there is vacant resource in 8 channels of same gateway module just Other channels in 8 channels of same gateway module are assigned to, if 8 channels of same module are all full, are assigned to other gateway moulds One single channel of block or other gateways;
The signal received is transmitted to satellite Internet of Things module, satellite object by the radio frequency unit inside satellite things-internet gateway Networking module is connected by outbound data interface with external ground network interface, and external ground network interface passes through information mutual For networking transport to the network control server of cloud service center, information is identified ID users by information flag by network control server, logical It crosses terrestrial interconnection net and transfers information to specified client;Or user client passes through mobile terminal APP to cloud service center Request is transmitted to satellite things-internet gateway station, and specified satellite Internet of Things by the acquisition of network control server application information, network control server Net gateway is opened satellite with the satellite internet-of-things terminal that client needs to acquire information and is connect, and the data of specified sensor are passed through Internet-of-things terminal station interface collect after, emitted by radio frequency unit to satellite, and by satellite things-internet gateway station receive after by ground Torus network is transmitted to cloud service center, relays to the user terminal for initiating acquisition signal;
Whether network control server can judge a gateway channels according to gateway accessing quantity and frequency bandwidth resource Congestion, when this gateway channels has communicated it is crowded when, new request can successively enable idle channel by the sequence made an appointment, when When all idle channels of one gateway station are all occupied, network control server can enable new multichannel gateway station according to agreement. Output is exactly that the Internet of Things module signal that transmits satellite of gateway station switchs to the available baseband signal of ground network, by external Network interface is transmitted directly on internet, and passes through the Internet transmission to Cloud Server.
Things-internet gateway station is connect by satellite with internet-of-things terminal, after internet-of-things terminal sends data to gateway, then Cloud Server is transmitted to by ground network by gateway, vice versa.Inside, i.e. net on Cloud Server in satellite Internet of Things net It is internal in the Internet of Things net that pipe software, gateway station and terminal station are constituted;Cloud computing server includes network server and application clothes Business device, in which: network server is located at cloud, is made of one or more control management modules, network server executes gateway Certification, channel with terminal are specified, business transmission is established and release, and forward the data to application server;One network Server can be connect with multiple application servers, and terminal is determined using the application belonging to terminal of which kind of server.
Application server is responsible for access terminal into network, and encrypts downlink data and decryption upstream data.It is main to use In automatic control and management.Terminal user is under different application scene in all nets, including fixed usage scenario makes with a bit With scene vehicle, ship, airborne application scenarios, different scenes are different to the module demand of gesture stability;Sensor acquires information Afterwards, it completes to upload by different types of terminal;Each internet-of-things terminal acquisition information mode and the mode of transmission all, wherein consolidating Determining station antenna is plate aerial, and vehicle, ship, airborne antenna are antenna for satellite communication in motion;After all being forwarded by geosynchronous satellite, by Ground things-internet gateway station receives and is sent to cloud computing center;Client's Internet of Things application platform refers to that ground and movement can pass The a set of application software of client's Internet of Things application platform, including database, operation interface, configuration interface, control interface are transported to, is had It receives the data of satellite Internet of Things acquisition and analyzes and obtain a result and used for user, or remotely monitor and control distance terminal The functions such as operating mode or the acquisition frequency, realize the Internet of Things signal transmitting and receiving of wide area.
The wherein internet of things sensors same type data-interface of gateway station and various types of terminals;Drive control unit Major function is to be calculated according to orbit prediction, calculates antenna pitching and azimuth by the information that orbit prediction software transmits Degree, and pitching, orientation are resolved as each channel width phase data code of front, each submatrix for controlling each phased array antenna corresponds to one The width of a antenna channels is mutually worth, calibration state etc..Each chip on circuit integration plate where drive control unit mentions It is connect for operating voltage and on power module by controlling cable;The company of Antenna Operation power supply and power module, drive module The relationship of connecing is: power module is connected in drive module, and Antenna Operation power supply is connected in drive module, drive module control electricity Source module is forwarded the switch of Antenna Operation power supply.Digital control circuit is mainly made of FPGA, FLASH etc., realizes day Every control communicating requirement of line, is mainly used for carrying out instruction resolving inside FPGA.Beam switchover is issued to antenna, powers on, break The function commands such as electric control, gain control, complete the control to the phase shifter, attenuator of inner antenna.One of inner antenna The number or analog power that the hardware wave control plate of wave beam control provides power supply extension set, pass through power conversion chip, generation module Various working powers needed for inside chip.Wherein lithium battery is fixed configurations unit, and satellite RF unit, two dimensional phased Array antenna according to the geosynchronous satellite of the different frequency range of selection, be respectively configured different frequency range using different radio frequency unit and Satellite antenna is at the unit to match or antenna of L, C, Ku or Ka frequency range, and wherein gateway station uses earth station antenna, eventually End station uses two dimensional phased array antenna to meet the mobile vehicles automatic tracking satellite such as vehicle, ship, airborne.Terminal uses gateway station It stands and cloud computing server is connected together via Internet, when each Terminal Type needs to communicate, the power switch to open a terminal will The data-interface cable of required Internet of Things acquisition equipment and terminal connects, after internet of things sensors collects data, by passing Sensor is sent, sensor factory setting to internet-of-things terminal, and terminal is automatically performed synchronism rail communication satellite, and by Internet of Things Network data is transmitted to gateway station station by satellite at a distance, and information is sent to cloud meter by terrestrial interconnection net by gateway station station Calculation center, data are only forwarded in Cloud Server, do not do information processing.And it is forwarded to the center of applying of all types of user, realization is wide Domain data transmission of internet of things.
User remotely can also initiate to request by application server to network server, and network server notification gateway station is built It is vertical to need the terminal communicated to establish connection with user, and give an order to sensor requirements that it opens up data acquisition, initiation Internet of Things The request instruction of the acquisition of information, user is sent to cloud computing center by terrestrial interconnection net, and incites somebody to action after being handled by Cloud Server Request is sent to gateway station station, and gateway station station issues data acquisition instructions by satellite, and terminal can control Internet of Things after receiving Net sensor carries out data acquisition.
The data access for the internet of things sensors acquisition installed on all kinds of carriers or fixed platform is to fixed, boat-carrying or machine On internet of things sensors data-interface in loading networked terminals, and in the internet-of-things terminal module being sent in terminal, Internet of Things Net module is for monitoring, if there are valid data to be transmitted to caching or timing wake-up for interface, judgement has data receiver;When there is number When according to receiving, the sensing data received being modulated and being encoded and satellite RF unit, satellite are transmitted to by Internal cable Modulated base band data is upconverted to Synchronous-Orbiting Communication Satellite frequency by radio frequency unit, according to selected synchronous satellite type, Can up-conversion to L, C, Ku or Ka frequency range carrier wave, and be transmitted to two dimensional phased array antenna unit, the transmitting to geosynchronous satellite Radiofrequency signal after the signal is forwarded by synchronous satellite, is sent to after being received by the things-internet gateway station of distal end by internet Cloud computing center is transmitted to every profession and trade user after being handled by Cloud Server.
Industry user remotely actively initiates data acquisition flow, and industry user's request instruction passes through flat in Internet of Things application It is operated on platform software, requests to enter cloud computing center, Cloud Server by internet on the application server by ground network It receives request and sends data to things-internet gateway station, information is modulated after coding and is transmitted to by radio frequency unit by gateway station Satellite, specified internet-of-things terminal is forwarded to by satellite, and terminal acquires after receiving instruction to internet of things sensors transmission data It is required that internet of things sensors will be transmitted to terminal, data are sent to satellite by radio frequency unit and antenna by terminal, are turned by satellite It is sent to gateway station and industry customer is passed back by ground network.
It wherein to realize that vehicle, ship, aircraft are completed to transmit geosynchronous satellite in traveling, need two dimensional phased battle array Antenna is completed accurately to track star, and workflow is: the control driving unit of terminal inner configured with attitude transducer and GPS receiver can obtain the posture and course information of vehicle after booting controls driving unit automatically, and be defended according to selected synchronize Star longitude station, calculates the pitching and orientation angles of two dimensional phased array antenna in real time, and the result of calculating is transferred to two by serial ports It ties up inside phased array antenna, antenna completes the satellite that is automatically aligned to of wave beam, and every 200ms in vehicle is mobile according to calculated result Or the direction of the wave beam of speed adjustment faster, and it is directed at and tracks Synchronous-Orbiting Communication Satellite.
Low power consumption transmission is realized by terminal arousal function: main power uses the hair for being satellite RF unit in terminal Penetrating power amplifier includes the upconverter and power amplifier, received low-converter and low noise sent.The control unit of each terminal and end There are I2C or similar serial bus interface to be connected between the radio frequency unit of end, and by one low level of the transmitting, switch is closed, hair A high level is sent, switch opens the power switch of Interface Controller terminal radio frequency unit, meanwhile, control unit and Internet of Things sense It is connected between device interface by bus interface, it can real-time monitoring interface data.When control unit monitors that data-interface has data biography When defeated, the transmission channel of satellite RF unit can be automatically opened, that completes data broadcasts TV programs by satellite transmission in the time arranged at one, Usually be pre-configured in terminal within 5-10 seconds, terminal according to internal clocking come self-clocking, not new number at data-interface When according to entering, it can be automatically closed;Whether the area data-interface BUFF of mainly monitoring connection sensor has data incoming, and satellite is penetrated The transmission channel of frequency unit realizes the low-power consumption function of terminal with this.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

Claims (10)

1. a kind of wide area low-power consumption Internet of Things communication system, it is characterised in that: including sensor receive-transmit system, satellite and movement Client process system;
The sensor receive-transmit system includes sensor data interface, for receiving the detection information of external sensor;Internet of Things Terminal module receives and is transmitted to satellite RF unit from the information that sensor data interface transmits;Satellite RF unit, to hair The information for being sent to satellite carries out frequency conversion and is sent to two dimensional phased array antenna;Two dimensional phased array antenna sends out the information after frequency conversion It send to synchronous or middle low-earth-orbit satellite;
The satellite is synchronous or middle low-earth-orbit satellite, for the information received to be sent to terrestrial information treating stations;
The client process system includes satellite things-internet gateway station, for receiving information that satellite transmits or sending to satellite Acquisition instructions;Cloud service center is sent to industry user or reception row for receiving the information that satellite things-internet gateway station is transmitted The acquisition instructions of industry user are sent to satellite things-internet gateway station.
2. a kind of wide area low-power consumption Internet of Things communication system according to claim 1, it is characterised in that:
The internet-of-things terminal module: including external interface, Base Band Unit and processing unit, the Base Band Unit is to from sensing Device dataport data carries out the protocol packing for being suitble to satellite channel transmission;And increase redundant correcting symbol for remote-wireless The sudden error code correction that channel transmission data causes;The Base Band Unit is also used to the data packet grouping after modulating-coding, And band spectrum modulation is carried out to the data packet after grouping, adapt it to remote satellite channel transmission;
For the processing unit for wake-up or suspend mode Base Band Unit, the wake-up includes timing wake-up and fixed point wake-up, described fixed When wake up for waking up the internet-of-things terminal in designated place, the fixed point wakes up whole for waking up the Internet of Things in specified region End;Or the acquisition instructions that ground information handling stations issue are realized with responding and wake up vehicle-mounted internet-of-things terminal completes to required data Acquisition and transmission;
Satellite RF unit: including up-converter module and down conversion module, the up-converter module is to the information for being sent to satellite Wave band frequency conversion is carried out, the down conversion module carries out lower wave band frequency conversion to the information that satellite returns;
Two dimensional phased array antenna: two-dimensional scanning is realized by pitching orientation, and for being sent to Synchronous-Orbiting Communication Satellite radio frequency The wave beam of signal tracks and modulating-coding.
Satellite things-internet gateway station: including multiple multichannel gateways being in parallel, the multichannel gateway packet Include radio frequency combiner device, multichannel gateway module, network module and power module;When receiving information, radio frequency combiner device is used for The satellite Internet of Things information and branch for receiving satellite RF unit give multichannel gateway module;When sending information, radio frequency combiner After device is used to for the satellite Internet of Things information of multichannel gateway module being combined, it is transmitted to satellite RF unit;It is more when receiving information Channel gateway module will be demodulated into base-band information from the received satellite Internet of Things information of radio frequency combiner device, then pass through network Interface is transmitted to ground network;When sending information, receives the base-band information of ground network and modulating-coding is believed at satellite Internet of Things Format is ceased, satellite is transmitted to by satellite RF unit, satellite communication antena;When receiving information, network module for that will believe more The base-band information of road gateway module demodulation is transmitted to ground network after collecting;When sending information, network module is used for terrestrial network At most channel gateway module is sent to after the modulate baseband information that network transmits;Power module is respectively used to give multichannel gateway mould Block, network module and the power supply of radio frequency combiner device.
3. a kind of wide area low-power consumption Internet of Things communication system according to claim 2, it is characterised in that:
The multichannel gateway module includes external interface, satellite Internet of Things communication module, multichannel satellite things-internet gateway mould Block;
Wherein, external interface transmits for realizing with the information of network module and radio frequency combiner device;
Satellite Internet of Things communication module for realizing satellite Internet of Things information and baseband signal conversion;
Multichannel satellite things-internet gateway module is used to complete the control and information transmission of multichannel communication multiple telecommunication module.
Satellite Internet of Things communication module includes multitasking unit, is connected with around the multi-task unit and connects with it FLASH module, indicating lamp module, satellite Internet of Things channel module, clock module, watchdog module, RS232/RS485 transceiver Module and Network Interface Module;The satellite Internet of Things channel module is also connected with wireless interface;The RS232/RS485 Transceiver module also passes through data interface module and is connected with the power module;The Network Interface Module also with satellite Internet of Things Net gateway module is connected;Wherein, satellite things-internet gateway module is made of 8 satellite things-internet gateway channel modules;It is described The satellite Internet of Things channel module in parallel for being equipped with 8 different frequencies, each satellite Internet of Things channel module on multichannel gateway module The frequency range for forming a complete network management module uses the sub- communication unit of frequency partition when there is signal access.
4. a kind of wide area low-power consumption Internet of Things communication system according to claim 2, it is characterised in that: the sensor is received Hair system further includes for giving vehicle-mounted internet-of-things terminal power supply lithium ionic cell module;Drive for internet-of-things terminal internal control Dynamic control unit;Synchronous-Orbiting Communication Satellite for the data penetration transmission between internet-of-things terminal and central station;
The lithium ionic cell module respectively with drive control unit, internet-of-things terminal module, sensor data interface, miniature penetrate Frequency unit and two dimensional phased array antenna are interconnected, and the drive control unit is also connected with internet-of-things terminal module, described Internet-of-things terminal module is also connected with satellite RF unit and sensor data interface respectively, the satellite RF unit also with Two dimensional phased array antenna is connected.
5. a kind of wide area low-power consumption Internet of Things means of communication, it is characterised in that:
The sensor receive-transmit system includes sensor data interface, for receiving the detection information of external sensor;Internet of Things Terminal module receives and is transmitted to satellite RF unit from the information that sensor data interface transmits;Satellite RF unit, to hair The information for being sent to satellite carries out frequency conversion and is sent to two dimensional phased array antenna;Two dimensional phased array antenna sends out the information after frequency conversion It send to synchronous or middle low-earth-orbit satellite;
The satellite is synchronous or middle low-earth-orbit satellite, for the information received to be sent to terrestrial information treating stations;
The client process system includes satellite things-internet gateway station, for receiving information that satellite transmits or sending to satellite Acquisition instructions;Cloud service center is sent to industry user or reception row for receiving the information that satellite things-internet gateway station is transmitted The acquisition instructions of industry user are sent to satellite things-internet gateway station.
Data are received by the internet-of-things terminal module to be pre-processed, and are transmitted to satellite RF unit and are realized frequency conversion, with Synchronous-Orbiting Communication Satellite is set to receive signal, Synchronous-Orbiting Communication Satellite by the transmitting behavior of two dimensional phased array antenna Receive after information and be transmitted to satellite things-internet gateway station, receives and be transmitted to cloud computing center by satellite things-internet gateway station, After Cloud Server is handled and it is uploaded to client's Internet of Things application platform.
6. a kind of wide area low-power consumption Internet of Things means of communication according to claim 5, it is characterised in that:
The internet-of-things terminal includes external interface and Base Band Unit, and the internet-of-things terminal passes through external interface and designated place Or the sensor in specified region is connected with each other, and after internet-of-things terminal receives the sensing data that external interface transmits, base band Unit carries out the modulating-coding for adapting to satellite channel transmission to data, and increases the superfluous of 4/5 encoding rate in modulating-coding Remaining error correction symbol is to sudden error code correction;The Base Band Unit carries out suitable satellite letter to from sensing data port data The protocol packing of road transmission;And increase sudden error code of the redundant correcting symbol for the initiation of remote-wireless channel transmission data It corrects;
Internet-of-things terminal further includes processing unit, and the processing unit includes for wake-up or suspend mode Base Band Unit, the wake-up Timing wake-up and fixed point wake up, and the timing wake-up is used to wake up the internet-of-things terminal in designated place, and the fixed point, which wakes up, to be used Internet-of-things terminal in the specified region of wake-up;Or the acquisition instructions that ground information handling stations issue are realized and responds and wakes up object Networked terminals complete the acquisition and transmission to required data.
7. a kind of wide area low-power consumption Internet of Things means of communication according to claim 6, it is characterised in that:
If the satellite RF unit upload information, the internet-of-things terminal module acquires data by sensor data interface, And coding is modulated to the effective information received;The up-converter module of satellite RF unit is to the upload number after modulating-coding According to from L-band up-conversion to L, S, C, X, Ku, Ka or EHF frequency range band signal, two dimensional phased array antenna is to the upload after frequency conversion After data receiver and amplification, it is sent to synchronous or middle low-earth-orbit satellite;
If the satellite RF unit download information, the down conversion module of satellite RF unit communicates synchronous or middle low orbit The information that satellite transmits downconverts to L-band from L, S, C, X, Ku, Ka or EHF frequency range band signal, and internet-of-things terminal module connects It accepts after frequency conversion information and sensor is sent to by outbound data interface.
8. a kind of wide area low-power consumption Internet of Things means of communication according to claim 6, it is characterised in that:
When mobile in specified region of vehicle, ship or aircraft, two dimensional phased array antenna passes through driving unit, drive control Unit adjusts the direction of wave beam, realizes and is directed at low-earth-orbit satellite synchronous or middle with tracking;Wherein, drive control unit is distinguished The information for receiving GPS positioning module and posture course transmitter, determines the current position of two dimensional phased array antenna, posture and course Information, according to the requirement of synchronous or middle low-earth-orbit satellite obtain pitch angle that the alignment of two dimensional phased array antenna need to adjust and Orientation angles are then sent to driving unit;Driving unit is adjusted according to pitch angle and orientation angles makes two dimensional phased The wave beam of array antenna is to satelloid.
9. a kind of wide area low-power consumption Internet of Things means of communication according to claim 6, it is characterised in that:
Including multiple multichannel gateways being in parallel, the multichannel gateway includes radio frequency combiner device, multichannel Gateway module, network module and power module;
When receiving information, radio frequency combiner device is used to receive the satellite Internet of Things information of satellite RF unit and branch to multichannel Gateway module;When sending information, after radio frequency combiner device is used to for the satellite Internet of Things information of multichannel gateway module being combined, pass Transport to satellite RF unit;The signal that the road radio frequency Fen He device is also used to receive is transmitted to satellite Internet of Things module, defends Star Internet of Things module is connected by outbound data interface with external ground network interface, and external ground network interface leads to information The network control server of the Internet transmission to cloud service center is crossed, network control server by utilizing information flag recognition user information passes through Terrestrial interconnection net transfers information to specified client;Or user client passes through mobile terminal APP to cloud service center net The acquisition of server application information is controlled, request is transmitted to satellite things-internet gateway station, and specified satellite Internet of Things by network control server Gateway is opened satellite with the satellite internet-of-things terminal that client needs to acquire information and is connect, and the data of specified sensor are passed through object Networked terminals station interface collect after, emitted by radio frequency unit to satellite, and by satellite things-internet gateway station receive after by ground Network transmission relays to the user terminal for initiating acquisition signal to cloud service center
When receiving information, multichannel gateway module will be demodulated into base from the received satellite Internet of Things information of radio frequency combiner device Information, then pass through network interface transfers to ground network;When sending information, receives the base-band information of ground network and modulate volume Code is transmitted to satellite by satellite RF unit, satellite communication antena at satellite Internet of Things information format;
When receiving information, network module is for being transmitted to terrestrial network after collecting the base-band information that multichannel gateway module demodulates Network;When sending information, network module is used to that at most channel gateway mould will to be sent to after modulate baseband information that ground network transmits Block.
Power module is respectively used to power to multichannel gateway module, network module and radio frequency combiner device.
10. a kind of wide area low-power consumption Internet of Things means of communication according to claim 9, it is characterised in that:
The multichannel gateway module includes external interface, satellite Internet of Things communication module, multichannel satellite things-internet gateway mould Block;
Wherein external interface transmits for realizing with the information of network module and radio frequency combiner device;
Satellite Internet of Things communication module for realizing satellite Internet of Things information and baseband signal conversion;
Multichannel satellite things-internet gateway module is used to complete the distribution and information transmission of multichannel communication multiple telecommunication module;One satellite The internet-of-things terminal access amount of Internet of Things communication module is less than 2000;If the terminal quantity worked at the same time increase to 2000 with When upper or transmission rate is larger than 120kbps, then another terminal for needing to communicate is accessed into same gateway or different gateways Idle channel;The gateway channels of the access are connected in ground LAN, and pass through the Internet transmission extremely by ground network Cloud Server;
The Cloud Server is equipped with network control server, and the network control server is according to gateway accessing quantity and frequency bandwidth resource Judge a gateway channels whether congestion, if there is congestion, will newly request successively to enable by agreement sequence idle logical Road, it is on the contrary then idle channel need not be started;If all idle channels of a gateway station are all occupied, network control server can be enabled Next satellite things-internet gateway station;When starting next satellite things-internet gateway station, if user in the net being certified, then may be used To be docked with geosynchronous satellite completion, otherwise refusal access;Certification is for identifying between internet-of-things terminal in the net The network identification mark of access.
CN201910715013.XA 2019-08-05 2019-08-05 A kind of wide area low-power consumption Internet of Things communication system and its transmission method Pending CN110474971A (en)

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