CN111970660A - Shipborne satellite multimode terminal based on satellite Internet of things - Google Patents
Shipborne satellite multimode terminal based on satellite Internet of things Download PDFInfo
- Publication number
- CN111970660A CN111970660A CN202010898580.6A CN202010898580A CN111970660A CN 111970660 A CN111970660 A CN 111970660A CN 202010898580 A CN202010898580 A CN 202010898580A CN 111970660 A CN111970660 A CN 111970660A
- Authority
- CN
- China
- Prior art keywords
- unit
- satellite
- antenna
- cloud
- things
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
- H04B7/18543—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for adaptation of transmission parameters, e.g. power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18545—Arrangements for managing station mobility, i.e. for station registration or localisation
-
- 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
Abstract
The invention discloses a shipborne satellite multimode terminal based on a satellite Internet of things, which relates to the technical field of logistics positioning and comprises a cloud satellite, a ground station and user terminals, wherein the cloud satellite is used for signal forwarding among the user terminals, between the user terminals and the ground station and laser link communication among satellites; the ground station is used for satellite management and service processing, and the user terminal is used for collecting and reporting information data of each monitoring point; the user terminal comprises a control unit, a positioning unit, a data acquisition unit, a data storage unit, a data transmission unit and an antenna unit, wherein the positioning unit, the data acquisition unit, the data storage unit, the data transmission unit and the antenna unit are respectively connected with the control unit; the antenna unit comprises a line cloud antenna, a BD/GPS antenna and an NB-IoT antenna.
Description
Technical Field
The invention relates to the technical field of satellite networks, in particular to a shipborne satellite multimode terminal based on a satellite Internet of things.
Background
In recent years, the speed of land transportation and ocean cargo transportation is accelerated remarkably, and trucks and containers which are used as main carriers of contemporary international bulk cargo transportation become symbols of global economy integration, which greatly promotes the development of trade among countries and provides convenient conditions for the development of economy of all countries in the world.
At present, most of shipborne Internet of things equipment adopts a GPS positioning and GPRS communication technology, and the networking function can be realized only under the condition that a mobile communication network exists. Once a ship enters the open sea or the adjacent country sea area, the situation that GPRS cannot communicate is met, so that GPS positioning information cannot be transmitted back to the country, and contact with the country can be established only by using a satellite phone.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a ship-borne satellite multimode terminal based on the satellite Internet of things.
The purpose of the invention is realized by the following technical scheme:
a logistics satellite multimode terminal based on a satellite Internet of things comprises a cloud satellite, a ground station and user terminals, wherein the cloud satellite is used for signal forwarding among the user terminals, between the user terminals and the ground station and laser link communication among the satellites; the ground station is used for satellite management and service processing, and the user terminal is used for collecting and reporting information data of each monitoring point;
the user terminal comprises a control unit, a positioning unit, a data acquisition unit, a data storage unit, a data transmission unit and an antenna unit, wherein the positioning unit, the data acquisition unit, the data storage unit, the data transmission unit and the antenna unit are respectively connected with the control unit;
the control unit is used for managing each unit, detecting electric quantity information, controlling positioning frequency and transmitting frequency, and controlling transmitting power according to the strength of network signals;
the data acquisition unit is used for acquiring the electric quantity of the battery and monitoring the use state of the electric quantity of the battery of the equipment;
the data transmission unit supports NB-IoT network and cloud satellite communication to realize data exchange with the Internet and is used for timed awakening of the user terminal;
the antenna unit comprises a line cloud antenna, a BD/GPS antenna and an NB-IoT antenna.
Preferably, the positioning unit comprises a Beidou/GPS unit.
Preferably, the data transmission unit includes an NB-IOT unit and a line cloud communication module.
Preferably, the model of the control unit is STM32L 151/152.
Preferably, the model of the Beidou/GPS unit is TD 1030.
Preferably, the NB-IOT unit has a model number of N10 SG.
The invention has the beneficial effects that: the invention adds a brand new function to the mushroom head antenna for receiving the BD/GPS signals, namely, the built-in Rongyu/BD/GPS antenna is convenient for the satellite communication function, so that the invention has three communication modes and solves the problem that the ship can not be networked when entering the coverage of no mobile network signals.
Drawings
FIG. 1 is a diagram of a user terminal of the present invention;
fig. 2 is a schematic diagram of three antenna integrated boards according to the present invention;
FIG. 3 is a communication diagram of a Row cloud satellite according to the present invention;
FIG. 4 is a communication diagram of a Beidou satellite of the present invention;
FIG. 5 is a schematic communication diagram of an ANTITONG first satellite of the present invention;
FIG. 6 is a schematic diagram of a user terminal implementing the present invention;
fig. 7 is a schematic structural view of the shipborne terminal of the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, a logistics satellite multimode terminal based on a satellite internet of things comprises a cloud-going satellite, a ground station and user terminals, wherein the cloud-going satellite is used for signal forwarding between the user terminals, between the user terminals and the ground station and laser link communication between satellites; the ground station is used for satellite management and service processing, and the user terminal is used for collecting and reporting information data of each monitoring point;
the Row cloud satellite is not a single satellite but consists of a constellation of low earth orbit satellites. And the system is responsible for signal forwarding and inter-satellite laser link communication between terminals and ground stations. The constellation plan emits 80 row cloud minisatellites to form a low-orbit satellite constellation which is the first low-orbit narrow-band communication satellite constellation in China. At present, 2 verification satellites are launched, and the communication test work with ground equipment is already completed.
The user terminal comprises a control unit, a positioning unit, a data acquisition unit, a data storage unit, a data transmission unit and an antenna unit, wherein the positioning unit, the data acquisition unit, the data storage unit, the data transmission unit and the antenna unit are respectively connected with the control unit;
the antenna unit comprises a line cloud antenna, a BD/GPS antenna and an NB-IoT antenna;
in order to be placed in a limited space, the cloud antenna and the BD/GPS antenna need to be miniaturized and integrated. It is considered to integrate the line cloud antenna and the BD/GPS antenna on one small board.
In order to design the miniaturized antenna to the optimal performance, after a large number of simulation experiments are performed, the optimal simulation result and simulation model are shown in fig. 2,
wherein, the upper antenna is a line cloud antenna transmitting unit with the size of 26mm 3mm
The lower layer antenna is a line cloud antenna receiving unit with the size of 40mm 3mm
The right antenna is Beidou B1/GPS with the size of 12mm
The simulation results of the line cloud antenna and the BD/GPS antenna are expressed as follows:
and (4) according to the gain condition of each antenna and the requirements of the use scene, comprehensively considering the prior scheme 3 and designing.
As shown in fig. 3, 4 and 5: because the equipment power supply is provided by the ship, the requirement of low power consumption is avoided. Therefore, three communication modes can be derived from the satellite communication part in the communication system: a cloud-going satellite, a Beidou short message and an aerospace satellite.
The ship-borne satellite multimode terminal is internally stacked as shown in fig. 7, the line cloud module and the main control board are firstly assembled into a whole, and the antenna is additionally arranged in the shell. The shell is made of ABS materials, so that the antenna inside the shell can receive electromagnetic waves conveniently. The upper cover and the lower cover of the shell both adopt an ultrasonic wave pressing mode, so that the shell has good sealing performance and plays a role in water resistance and corrosion resistance. The bottom of the mushroom head shell is also provided with a strong magnet which can be firmly adsorbed on metal parts such as a car roof, a cabin and the like.
The NB-IoT adopts a mature GSM antenna or an onboard antenna design.
The control unit is used for managing each unit, detecting electric quantity information, controlling positioning frequency and transmitting frequency, and controlling transmitting power according to the strength of network signals;
the data storage unit has a storage function for data which cannot be uploaded due to no network or unsmooth network communication, the stored data are uploaded to a data center when the network is recovered, and the data storage space is not less than 32K.
When the network is recovered, the terminal transmits the current position information preferentially, and after the transmission of the current position information is finished, the transmission is finished after the transmission of the stored data is finished; if no data is stored, the transmission is finished.
The data storage space adopts the principle of 'first-in last-out', and when the untransmitted data exceeds the storage space, the data is covered to enter the storage space firstly and is not transmitted.
The data acquisition unit is used for acquiring the electric quantity of the battery and monitoring the use state of the electric quantity of the battery of the equipment;
the data transmission unit can support NB-IoT network and cloud satellite communication to realize data exchange with the Internet.
The timing awakening function can be realized, the awakening time interval is set according to actual requirements, and effective monitoring and tracking management of the terminal are realized. The data transfer time setting is stepped to 30 minutes, providing a wake-up interval configuration of 30 minutes to 48 hours.
The multimode satellite internet of things terminal can automatically adjust the reporting time interval according to the motion state of a product, does not update position information in a static state, has the motion state for 1 day to 2 times, and can perform frequency manual adjustment according to actual requirements.
It should be noted that the positioning unit includes a Beidou/GPS unit, and supports the Beidou/GPS satellite positioning function; and under the condition of using the NB ground network, the base station positioning function of the mobile communication network is supported, and under the condition of using the NB ground network, the A-GPS positioning function is supported.
The data transmission unit comprises an NB-IOT unit and a line cloud communication module.
The line cloud satellite communication module adopts a line cloud B-type module with high performance, low power consumption and high integration level.
The model of the control unit is STM32L151/152, and an STM32L151/152 device expands the ultra-low power consumption concept by utilizing a Cortex-M3 inner core and a CPU clock with the frequency between 32kHz and 32MHz, and does not reduce the performance. In addition to the dynamic and low power modes of operation, there are 2 other ultra low power modes that provide very low power consumption for you while maintaining the RTC, backup register contents and low voltage detector operation.
The STM32L151/152 device is oriented to medical, industrial and consumer applications, and has the main characteristics of a fast 12-bit 1MSPS ADC, a USB 2.0FS and a capacitive touch sensing module which are integrated on a chip, and the storage capacity can be expanded by utilizing SDIO and FSMC interfaces.
The model of the Beidou/GPS unit is TD1030, the Beidou (GPS) positioning module adopts a BDS/GPS/GLONASS satellite positioning navigation time service chip with high performance and high integration of Thai fighting company, and the TD1030 is selected according to design requirements. The chip has the following characteristics:
the TD1030 is a BDS/GPS/GLONASS satellite positioning navigation time service chip with high performance and high integration level. The chip adopts a radio frequency baseband integrated design, and integrates DC-DC, LDO, power management, POR, radio frequency processing, satellite positioning navigation time service digital baseband processing, a 32-bit RISC CPU, RAM, FLASH storage, Watchdog, Timer, RTC, an antenna state detection and short-circuit protection circuit and the like on a single chip. The chip supports rich interfaces such as UART, I2C, SPI, SQI, GPIO, external interrupt Ex _ INT, 1PPS, programmable TimeMark and the like, and supports integrated navigation, A-GPS and D-GNSS.
The TD1030 has the characteristics of high performance, high integration level, small size, low power consumption, low cost, interference resistance and the like, can be directly compatible with and replace mainstream GPS products, greatly reduces the replacement cost and shortens the replacement time.
The NB-IOT unit is N10 SG. The NB-IoT module adopts a high-performance and low-power consumption NB-IoT wireless communication module of a middle-moving Internet of things company, and an N10SG module is selected according to design requirements. The module has the following characteristics:
the power supply voltage is as low as 2.1V, the AA dry battery is supported, the battery can be squeezed to the maximum extent, and a client can be helped to obtain longer end service life. M5311 provides rich external interfaces and protocol stacks, supports external sensor equipment, and provides great convenience for product development of users. And meanwhile, the OneNet cloud platform protocol is supported, seamless docking is really realized, and rapid development is realized.
The working principle of the invention is shown in fig. 5, the Beidou satellite is used for positioning the terminal, and the position information is transmitted back to the background through the NB-IOT internet of things network or the cloud satellite network, so that the real-time monitoring of the terminal position and the real-time acquisition of the terminal state are realized.
Big dipper/GPS satellite: providing a positioning service;
a user terminal: searching a Beidou/GPS satellite, calculating position information, and transmitting the position information to a background through an NB-IOT network or a cloud low-orbit satellite network;
NB-IOT/Row cloud low-orbit satellite: is responsible for forwarding the position information of the user terminal
Cloud platform: and the system is responsible for collecting and monitoring the position and state information of the user terminal and visually displaying the information to a client.
The implementation method of the user terminal is shown in fig. 6, and the Beidou/GPS unit: searching a Beidou/GPS satellite to complete positioning, and transmitting position information to the control unit through a UART data interface;
NB-IOT unit: and searching an NB-IOT network, acquiring the position information of the device from the control unit through a UART data interface when a network signal exists, and uploading the data to the cloud platform by adopting an MQTT protocol.
The foregoing is merely a preferred embodiment of the invention, it being understood that the embodiments described are part of the invention, and not all of it. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The invention is not intended to be limited to the forms disclosed herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A logistics satellite multimode terminal based on a satellite Internet of things is characterized by comprising a cloud satellite, a ground station and user terminals, wherein the cloud satellite is used for signal forwarding between the user terminals, between the user terminals and the ground station and laser link communication between the satellites; the ground station is used for satellite management and service processing, and the user terminal is used for collecting and reporting information data of each monitoring point;
the user terminal comprises a control unit, a positioning unit, a data acquisition unit, a data storage unit, a data transmission unit and an antenna unit, wherein the positioning unit, the data acquisition unit, the data storage unit, the data transmission unit and the antenna unit are respectively connected with the control unit;
the control unit is used for managing each unit, detecting electric quantity information, controlling positioning frequency and transmitting frequency, and controlling transmitting power according to the strength of network signals;
the data acquisition unit is used for acquiring the electric quantity of the battery and monitoring the use state of the electric quantity of the battery of the equipment;
the data transmission unit supports NB-IoT network and cloud satellite communication to realize data exchange with the Internet and is used for timed awakening of the user terminal;
the antenna unit comprises a line cloud antenna, a BD/GPS antenna and an NB-IoT antenna.
2. The logistics satellite multimode terminal based on the satellite internet of things of claim 1, wherein the positioning unit comprises a Beidou/GPS unit.
3. The logistics satellite multimode terminal based on the satellite internet of things of claim 2, wherein the data transmission unit comprises an NB-IOT unit and a Row cloud communication module.
4. The logistics satellite multimode terminal based on the satellite internet of things of claim 1, wherein the model of the control unit is STM32L 151/152.
5. The logistics satellite multimode terminal based on the satellite internet of things of claim 2, wherein the type of the Beidou/GPS unit is TD 1030.
6. The logistics satellite multimode terminal based on the satellite internet of things of claim 3, wherein the NB-IOT unit is N10SG in model number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898580.6A CN111970660A (en) | 2020-08-31 | 2020-08-31 | Shipborne satellite multimode terminal based on satellite Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898580.6A CN111970660A (en) | 2020-08-31 | 2020-08-31 | Shipborne satellite multimode terminal based on satellite Internet of things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111970660A true CN111970660A (en) | 2020-11-20 |
Family
ID=73400455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010898580.6A Pending CN111970660A (en) | 2020-08-31 | 2020-08-31 | Shipborne satellite multimode terminal based on satellite Internet of things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111970660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114564239A (en) * | 2022-02-18 | 2022-05-31 | 中国电子科技集团公司第五十四研究所 | Satellite Internet of things monitoring method and system suitable for emergency scene |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180248671A1 (en) * | 2017-02-28 | 2018-08-30 | Qualcomm Incorporated | Narrowband time-division duplex frame structure for narrowband communications |
| CN209642672U (en) * | 2019-07-01 | 2019-11-15 | 北京有感科技有限责任公司 | UAV Communication base station and communication system |
| CN111180907A (en) * | 2019-02-25 | 2020-05-19 | 成都星联芯通科技有限公司 | NB-IoT and Internet of things satellite fusion antenna |
| CN111290315A (en) * | 2020-02-20 | 2020-06-16 | 航天行云科技有限公司 | Dual-mode Internet of things control system and method |
-
2020
- 2020-08-31 CN CN202010898580.6A patent/CN111970660A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180248671A1 (en) * | 2017-02-28 | 2018-08-30 | Qualcomm Incorporated | Narrowband time-division duplex frame structure for narrowband communications |
| CN111180907A (en) * | 2019-02-25 | 2020-05-19 | 成都星联芯通科技有限公司 | NB-IoT and Internet of things satellite fusion antenna |
| CN209642672U (en) * | 2019-07-01 | 2019-11-15 | 北京有感科技有限责任公司 | UAV Communication base station and communication system |
| CN111290315A (en) * | 2020-02-20 | 2020-06-16 | 航天行云科技有限公司 | Dual-mode Internet of things control system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114564239A (en) * | 2022-02-18 | 2022-05-31 | 中国电子科技集团公司第五十四研究所 | Satellite Internet of things monitoring method and system suitable for emergency scene |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017223223B2 (en) | Terminal scheduling method in satellite communication system | |
| CN107861136A8 (en) | Communication system and communication means based on big-dipper satellite and internet, portable Big Dipper terminal | |
| CN111290315B (en) | Dual-mode Internet of things control system and method | |
| CN109061682A (en) | LEO occultation system and method suitable for aerostatics | |
| CN111510196B (en) | Space-based search and rescue system based on Lora technology | |
| CN204439839U (en) | A kind of preventing child loses tracker | |
| CN111970660A (en) | Shipborne satellite multimode terminal based on satellite Internet of things | |
| CN104215986A (en) | Seaborne remote iridium bidirectional communication/location system of underwater glider | |
| JP5249808B2 (en) | Position transmitting apparatus, position tracking system, and position transmitting method | |
| CN103529464A (en) | Terminal device based on Compass satellite system | |
| KR100817311B1 (en) | Animal tracking terminal and animal tracking receiver to be used in animal tracking system | |
| KR20210072406A (en) | System and Method for Correcting Location Using Satellite Based Augmentation System | |
| CN111092649B (en) | Single big dipper location fairway buoy based on global low orbit satellite communication | |
| CN211603486U (en) | Battery detection system based on Beidou satellite communication | |
| CN205507098U (en) | Little volume orientation module | |
| CN112020015A (en) | Logistics satellite multimode terminal based on satellite Internet of things and low-power consumption method | |
| CN113466911A (en) | Beidou high-precision monitoring system and monitoring method | |
| CN208891076U (en) | Hand-held dotting equipment and its component | |
| CN208689170U (en) | A kind of birds tracker | |
| CN202735519U (en) | GPS tracker specially for transportation of railway container | |
| CN105929681A (en) | SOS automatic time service smart watch based on first generation of Beidou satellite navigation system | |
| CN105743895A (en) | Data exchanging system based on BDS and UWSNs | |
| CN216611225U (en) | Railway vehicle positioning device and system | |
| CN213461811U (en) | Tracker, pet tracking device and system of multi-protocol communication | |
| CN207133442U (en) | Animal location data collection system based on ultra-high frequency wireless wave frequency ranges |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201120 |