CN111970664A - Vehicle-mounted satellite multimode terminal based on satellite Internet of things - Google Patents
Vehicle-mounted satellite multimode terminal based on satellite Internet of things Download PDFInfo
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- CN111970664A CN111970664A CN202010898656.5A CN202010898656A CN111970664A CN 111970664 A CN111970664 A CN 111970664A CN 202010898656 A CN202010898656 A CN 202010898656A CN 111970664 A CN111970664 A CN 111970664A
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- 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]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a vehicle-mounted satellite multimode terminal based on a satellite Internet of things, which comprises a data processing device, a positioning module, an NB-IoT module, a cloud satellite communication module, a motion detection sensor, a power supply module, an antenna device and a data storage device, wherein the NB-IoT module is connected with the data processing device; the positioning module, the NB-IoT module, the cloud satellite communication module, the motion detection sensor, the power supply module and the data storage device are respectively connected with the data processing device; the positioning module, the NB-IoT module and the cloud satellite communication module are respectively connected with the antenna device; by the method and the device, the problem that the vehicle cannot be networked after entering a remote mountain area can be solved.
Description
Technical Field
The invention relates to the field of communication, in particular to a vehicle-mounted satellite multimode terminal based on a satellite Internet of things.
Background
In recent years, the concept of car networking is mastered by various big media, and the development of car networking technology is also well expressed. Some car networking products appear in the market at present, most of the devices adopt the GPS positioning and GPRS communication technology, and the networking function can be realized only under the condition that a mobile communication network exists. Once the vehicle enters a remote mountain area without a mobile communication network, contact with the outside world is lost. Especially in the unmanned situation, a great potential safety hazard will occur when network connection is lost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a vehicle-mounted satellite multimode terminal based on a satellite Internet of things, which comprises a data processing device, a positioning module, an NB-IoT module, a cloud-going satellite communication module, a motion detection sensor, a power supply module, an antenna device and a data storage device, wherein the NB-IoT module is used for receiving a satellite-based satellite communication signal; the positioning module, the NB-IoT module, the cloud satellite communication module, the motion detection sensor, the power supply module and the data storage device are respectively connected with the data processing device; the positioning module, the NB-IoT module and the cloud satellite communication module are respectively connected with the antenna device; when the vehicle-mounted satellite multimode terminal based on the satellite Internet of things is in a standby state, the terminal is awakened regularly, whether the vehicle-mounted satellite multimode terminal based on the satellite Internet of things moves or not is detected through a motion detection sensor, if the vehicle-mounted satellite multimode terminal based on the satellite Internet of things does not move, state information is stored, and the vehicle-mounted satellite multimode terminal enters a dormant state again; if the mobile terminal moves, starting the positioning module and the NB-IoT module, and judging whether the NB-IoT module accesses the network; if the NB-IoT module is accessed to the network, whether the positioning module acquires positioning information is judged, and if the positioning information is acquired, the positioning data is sent to the data storage device through the NB-IoT module; if the NB-IoT module is not connected to the network, whether the positioning module acquires positioning information is judged, if the positioning information is acquired, whether the cloud satellite communication module meets the awakening requirement is judged, if the positioning information is acquired, the cloud satellite communication module is awakened, current position information is acquired through the cloud satellite communication module, and the acquired position information is stored in a data storage device.
Preferably, the mobile terminal further comprises a cloud server, and when the terminal is located in a mobile network environment, the terminal is connected with the cloud server through the NB-IoT module; when the terminal is located in the environment without the mobile network, the terminal is connected with the cloud server through the cloud satellite communication module.
Preferably, the positioning module comprises a GPS module and a Beidou positioning module; the GPS module and the Beidou positioning module are respectively connected with the data processing device; when the terminal is located in the environment without the mobile network, the terminal can also communicate with the cloud server through the short message of the Beidou positioning module.
Preferably, the antenna device comprises a line cloud antenna, a positioning module antenna and an NB-IoT antenna; the line cloud antenna is connected with the line cloud satellite communication module; the positioning module antenna is connected with the positioning module; the NB-IoT antenna is connected with the NB-IoT module.
Preferably, the power module comprises a storage battery and a power interface; the storage battery and the power interface are respectively connected with the data processing device; the power supply interface is used for the terminal to obtain electric power from the vehicle; the storage battery is used for providing standby power for the terminal.
Preferably, the cloud module waking comprises the following processes: before installation, the terminal needs to manually perform one satellite access or ephemeris injection operation; and calculating the next module awakening time by using a satellite incremental launching algorithm.
The invention has the beneficial effects that: a brand-new networking mode is added for the application of the Internet of vehicles, namely the Internet of things of low orbit satellites based on the cloud satellites, and the problem that the Internet of vehicles cannot be networked after entering a remote mountain area is solved.
Drawings
FIG. 1 is a schematic diagram of a vehicular satellite multimode terminal based on a satellite Internet of things;
fig. 2 is a schematic diagram of a network selection policy.
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 vehicle-mounted satellite multimode terminal based on a satellite internet of things comprises a data processing device, a positioning module, an NB-IoT module, a cloud-going satellite communication module, a motion detection sensor, a power supply module, an antenna device and a data storage device; the positioning module, the NB-IoT module, the cloud satellite communication module, the motion detection sensor, the power supply module and the data storage device are respectively connected with the data processing device; the positioning module, the NB-IoT module and the cloud satellite communication module are respectively connected with the antenna device; when the vehicle-mounted satellite multimode terminal based on the satellite Internet of things is in a standby state, the terminal is awakened regularly, whether the vehicle-mounted satellite multimode terminal based on the satellite Internet of things moves or not is detected through a motion detection sensor, if the vehicle-mounted satellite multimode terminal based on the satellite Internet of things does not move, state information is stored, and the vehicle-mounted satellite multimode terminal enters a dormant state again; if the mobile terminal moves, starting the positioning module and the NB-IoT module, and judging whether the NB-IoT module accesses the network; if the NB-IoT module is accessed to the network, whether the positioning module acquires positioning information is judged, and if the positioning information is acquired, the positioning data is sent to the data storage device through the NB-IoT module; if the NB-IoT module is not connected to the network, whether the positioning module acquires positioning information is judged, if the positioning information is acquired, whether the cloud satellite communication module meets the awakening requirement is judged, if the positioning information is acquired, the cloud satellite communication module is awakened, current position information is acquired through the cloud satellite communication module, and the acquired position information is stored in a data storage device.
The mobile terminal comprises a mobile network environment, a NB-IoT module and a cloud server, wherein the mobile network environment comprises a mobile network environment and is characterized by also comprising the cloud server, and when the terminal is positioned in the mobile network environment, the terminal is connected with the cloud server through the NB-IoT module; when the terminal is located in the environment without the mobile network, the terminal is connected with the cloud server through the cloud satellite communication module.
The positioning module comprises a GPS module and a Beidou positioning module; the GPS module and the Beidou positioning module are respectively connected with the data processing device; when the terminal is located in the environment without the mobile network, the terminal can also communicate with the cloud server through the short message of the Beidou positioning module.
The antenna device comprises a line cloud antenna, a positioning module antenna and an NB-IoT antenna; the line cloud antenna is connected with the line cloud satellite communication module; the positioning module antenna is connected with the positioning module; the NB-IoT antenna is connected with the NB-IoT module.
The power supply module comprises a storage battery and a power supply interface; the storage battery and the power interface are respectively connected with the data processing device; the power supply interface is used for the terminal to obtain electric power from the vehicle; the storage battery is used for providing standby power for the terminal.
Specifically, the invention 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 in the case of using the NB ground network, the A-GPS positioning function is supported. For data which cannot be uploaded when no network exists or network communication is not smooth, the intelligent terminal has a storage function, 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 exchange with the internet can be realized in NB-IoT network and cloud satellite communication.
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.
The positioning module in the scheme is used for searching the Beidou/GPS satellite to complete positioning and transmitting the position information to the data processing device through the UART data interface;
the NB-IOT module is used for searching an NB-IOT network, acquiring the position information of the device from the control unit through the UART data interface when a network signal exists, and uploading the data to the cloud platform by adopting an MQTT protocol;
the Row cloud B type module is used for searching a Row cloud satellite when the system cannot search the NB-IOT network, acquiring the position information of the device from the control unit through the UART data interface after registering in the satellite network, and uploading the data to the cloud platform;
the data processing device is used for managing each module, detecting electric quantity information, controlling positioning frequency and transmitting frequency, and controlling transmitting power according to the strength of network signals.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. 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 (5)
1. A vehicle-mounted satellite multimode terminal based on a satellite Internet of things is characterized by comprising a data processing device, a positioning module, an NB-IoT module, a cloud satellite communication module, a motion detection sensor, a power supply module, an antenna device and a data storage device; the positioning module, the NB-IoT module, the cloud satellite communication module, the motion detection sensor, the power supply module and the data storage device are respectively connected with the data processing device; the positioning module, the NB-IoT module and the cloud satellite communication module are respectively connected with the antenna device; when the vehicle-mounted satellite multimode terminal based on the satellite Internet of things is in a standby state, the terminal is awakened regularly, whether the vehicle-mounted satellite multimode terminal based on the satellite Internet of things moves or not is detected through a motion detection sensor, if the vehicle-mounted satellite multimode terminal based on the satellite Internet of things does not move, state information is stored, and the vehicle-mounted satellite multimode terminal enters a dormant state again; if the mobile terminal moves, starting the positioning module and the NB-IoT module, and judging whether the NB-IoT module accesses the network; if the NB-IoT module is accessed to the network, whether the positioning module acquires positioning information is judged, and if the positioning information is acquired, the positioning data is sent to the data storage device through the NB-IoT module; if the NB-IoT module is not connected to the network, whether the positioning module acquires positioning information is judged, if the positioning information is acquired, whether the cloud satellite communication module meets the awakening requirement is judged, if the positioning information is acquired, the cloud satellite communication module is awakened, current position information is acquired through the cloud satellite communication module, and the acquired position information is stored in a data storage device.
2. The vehicular satellite multimode terminal based on the satellite internet of things of claim 1, further comprising a cloud server, wherein when the terminal is located in a mobile network environment, the terminal is connected with the cloud server through an NB-IoT module; when the terminal is located in the environment without the mobile network, the terminal is connected with the cloud server through the cloud satellite communication module.
3. The vehicle-mounted satellite multimode terminal based on the satellite internet of things is characterized in that the positioning module comprises a GPS module and a Beidou positioning module; the GPS module and the Beidou positioning module are respectively connected with the data processing device; when the terminal is located in the environment without the mobile network, the terminal can also communicate with the cloud server through the short message of the Beidou positioning module.
4. The vehicle-mounted satellite multimode terminal based on the satellite internet of things of claim 1, wherein the antenna device comprises a cloud antenna, a positioning module antenna and an NB-IoT antenna; the line cloud antenna is connected with the line cloud satellite communication module; the positioning module antenna is connected with the positioning module; the NB-IoT antenna is connected with the NB-IoT module.
5. The vehicle-mounted satellite multimode terminal based on the satellite internet of things of claim 1, wherein the power supply module comprises a storage battery and a power supply interface; the storage battery and the power interface are respectively connected with the data processing device; the power supply interface is used for the terminal to obtain electric power from the vehicle; the storage battery is used for providing standby power for the terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898656.5A CN111970664A (en) | 2020-08-31 | 2020-08-31 | Vehicle-mounted satellite multimode terminal based on satellite Internet of things |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010898656.5A CN111970664A (en) | 2020-08-31 | 2020-08-31 | Vehicle-mounted satellite multimode terminal based on satellite Internet of things |
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| CN111970664A true CN111970664A (en) | 2020-11-20 |
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| CN202010898656.5A Pending CN111970664A (en) | 2020-08-31 | 2020-08-31 | Vehicle-mounted satellite multimode terminal based on satellite Internet of things |
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Cited By (2)
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| CN112764067A (en) * | 2020-12-23 | 2021-05-07 | 深圳创维数字技术有限公司 | Method and device for acquiring ephemeris data of GPS (Global positioning System) satellite, and vehicle-mounted and readable storage medium |
| CN112799103A (en) * | 2021-02-05 | 2021-05-14 | 福建省交通科研院有限公司 | Detection and verification system for vehicle-mounted satellite positioning device |
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