An internet of things cloud edge end coordination method based on star-ground direct connection

Abstract

The application discloses an Internet of Things system based on star-ground direct connection and a cloud-edge-end cooperation method thereof, and relates to the technical field of Internet of Things. The system comprises a sensor, which can be connected with a cloud computing center and a star-ground direct connection portable device through a ground communication network, is used for collecting and transmitting data, and adjusting an operating state according to a control instruction; a low-orbit satellite, which can be connected with the sensor, the cloud computing center and the star-ground direct connection portable device when passing overhead, is used for processing and forwarding data, and is used for forwarding the control instruction; the cloud computing center, which is connected with the star-ground direct connection portable device, is used for processing data and controlling the sensor; and the star-ground direct connection portable device, which is used for processing and forwarding data, is used for forwarding the control instruction and controlling the sensor. The system and the method can effectively improve sensor management and sensing data back transmission efficiency, improve sensor sensing data processing capacity, thereby reducing the data amount of sensor data back transmission to the cloud computing center and reducing network resource consumption.

Description

Technical Field

[0001] This invention relates to the field of Internet of Things (IoT) technology, and in particular to an IoT system based on direct satellite-to-ground connectivity and its cloud-edge-device collaboration method. Background Technology

[0002] With the continuous development of IoT technology, various industries are gradually moving towards the era of "Internet of Everything." The IoT utilizes sensors to perceive various types of information and achieves ubiquitous connectivity between people and things, and between things themselves, through communication networks. Traditional IoT primarily relies on terrestrial communication networks for interconnection and data transmission. However, terrestrial communication networks are limited by factors such as terrain, geological environment, and cost-effectiveness, and can only cover a portion of the area. As IoT technology continues to develop, the amount of information that needs to be sensed is constantly increasing, and the scope of sensing is also expanding, covering almost every corner of the earth, including areas that terrestrial network infrastructure cannot cover, such as jungles, deep seas, Gobi deserts, and other remote areas. Therefore, relying solely on terrestrial communication networks to build the IoT can no longer meet the ever-increasing application demands.

[0003] To overcome the problems of terrestrial IoT, an integrated space-ground IoT has been proposed. This integrated space-ground IoT leverages the wide coverage and flexible deployment capabilities of low-Earth orbit (LEO) satellites, overcoming the geographical limitations of traditional terrestrial IoT. However, in existing integrated space-ground IoT systems, LEO satellites are primarily used for data acquisition and relay. All data collected by sensors is processed and stored by a cloud computing center, which also centrally manages the sensors. This leads to wasted network resources and places significant data processing pressure on the cloud computing center. Furthermore, the limited overhead time of LEO satellites makes continuous data acquisition difficult. Moreover, the aforementioned sensor management and data processing methods require high network stability and high reliability and data processing capabilities from the cloud computing center; otherwise, single points of failure are highly likely. In addition, with the widespread adoption of IoT, the existing sensor management and data processing methods are insufficient to meet the explosive growth in sensor management and data processing demands. Summary of the Invention

[0004] To address some or all of the technical problems existing in the prior art, the present invention provides an Internet of Things system based on direct satellite-to-ground connection and its cloud-edge-device collaboration method.

[0005] The technical solution of the present invention is as follows:

[0006] Firstly, an Internet of Things (IoT) system based on direct satellite-to-ground connectivity is provided, characterized by comprising:

[0007] Sensors can communicate with cloud computing centers and portable devices that connect directly to the ground via terrestrial communication networks to collect and transmit data, and adjust their own operating status according to received control commands.

[0008] The low-orbit satellite is able to communicate with the sensor, the cloud computing center and the satellite-to-ground direct connection portable device when it passes overhead, and is used to process and forward data sent by the sensor and / or the satellite-to-ground direct connection portable device, as well as to forward control commands sent by the cloud computing center and / or the satellite-to-ground direct connection portable device.

[0009] The cloud computing center is communicatively connected to the portable satellite-to-ground connection device, and is used to process data sent by the sensor and / or the low-orbit satellite and / or the portable satellite-to-ground connection device, as well as to control the sensor.

[0010] The portable device with direct satellite-to-ground connection is used to process and forward data sent by the sensor, to forward control commands sent by the cloud computing center and / or the low-orbit satellite, and to control the sensor.

[0011] In some possible implementations, after adjusting its own operating state according to the received control command, the sensor feeds back its own operating state information to the cloud computing center that sent the control command, the satellite-to-ground direct connection portable device, or the low-orbit satellite.

[0012] In some possible implementations, the cloud computing center controls the sensor, including:

[0013] The cloud computing center generates control commands for the sensor according to preset requirements;

[0014] The cloud computing center sends control commands to the sensor via a terrestrial communication network, and / or the satellite-to-ground direct connection portable device, and / or the low-orbit satellite.

[0015] In some possible implementations, the satellite-to-ground direct-connect portable device controls the sensor, including:

[0016] The portable device with direct connection between satellite and ground generates control commands for the sensor according to preset requirements.

[0017] The portable device with direct satellite-to-ground connection sends control commands to the sensor via a terrestrial communication network and / or the low-orbit satellite.

[0018] Secondly, a cloud-edge-device collaboration method for the aforementioned IoT system based on direct satellite-to-ground connectivity is also provided, the method comprising:

[0019] The cloud computing center generates control commands for the sensors to be controlled based on preset requirements;

[0020] The cloud computing center checks whether it can connect to the sensor. If so, it sends control commands to the sensor so that the sensor can adjust its operating status according to the received control commands.

[0021] If it cannot connect to the sensor, it determines whether there is a portable satellite-to-ground device that can connect to the sensor. If so, it sends control commands to the portable satellite-to-ground device that can connect to the sensor, so that the portable satellite-to-ground device sends control commands to the sensor, and the sensor adjusts its own operating state according to the received control commands.

[0022] If no portable satellite-to-ground device can connect to the sensor, then when a connection to a low-Earth orbit (LEO) satellite is available, control commands will be sent to the LEO satellite so that the LEO satellite will send the control commands to the sensor. Alternatively, the LEO satellite will send the control commands to a portable satellite-to-ground device that can subsequently connect to the sensor so that the portable satellite-to-ground device will send the control commands to the sensor, allowing the sensor to adjust its operating state according to the received control commands.

[0023] Thirdly, a cloud-edge-device collaboration method for the aforementioned IoT system based on direct satellite-to-ground connectivity is also provided, the method comprising:

[0024] The portable device with direct connection between satellite and ground generates control commands for the sensors to be controlled based on preset requirements;

[0025] The portable device that connects directly to the ground checks whether it can connect to the sensor. If so, it sends control commands to the sensor so that the sensor can adjust its own operating status according to the received control commands.

[0026] If it cannot connect to the sensor, check if it can connect to a low-Earth orbit satellite. If so, send control commands to the low-Earth orbit satellite so that the low-Earth orbit satellite can send control commands to the sensor so that the sensor can adjust its own operating status according to the received control commands.

[0027] If a connection with a low-Earth orbit (LEO) satellite cannot be established, wait for the LEO satellite to pass overhead. When the LEO satellite passes overhead, send control commands to the LEO satellite so that the LEO satellite can send the control commands to the sensor, allowing the sensor to adjust its operating state according to the received control commands.

[0028] Fourthly, a cloud-edge-device collaboration method for the aforementioned IoT system based on direct satellite-to-ground connectivity is also provided, the method comprising:

[0029] Determine whether the sensor can connect to the cloud computing center. If so, send the data collected by the sensor to the cloud computing center for processing.

[0030] If the sensor cannot connect to the cloud computing center, it is determined whether the sensor can connect to the satellite-to-ground direct connection portable device. If so, the data collected by the sensor is sent to the satellite-to-ground direct connection portable device, and it is determined whether the processing task corresponding to the received data exceeds the processing capacity of the satellite-to-ground direct connection portable device. If the processing task corresponding to the received data does not exceed the processing capacity of the satellite-to-ground direct connection portable device, the data is processed using the satellite-to-ground direct connection portable device, and the processing result is sent to the cloud computing center for synchronization.

[0031] If the processing workload corresponding to the received data exceeds the processing capacity of the portable satellite-to-ground connection device, it is determined whether the portable satellite-to-ground connection device can connect to the cloud computing center. If so, the received data is forwarded to the cloud computing center using the portable satellite-to-ground connection device, and the cloud computing center processes the data. If not, it waits to connect to the low-Earth orbit satellite. After it can connect to the low-Earth orbit satellite, the received data is forwarded to the low-Earth orbit satellite.

[0032] If the sensor cannot connect to the portable device with direct satellite-to-ground connection, the data collected by the sensor is sent to a low-Earth orbit satellite that can connect to the sensor. After the low-Earth orbit satellite receives the data sent by the sensor or the portable device with direct satellite-to-ground connection, it determines whether the processing workload of the received data exceeds the processing capacity of the low-Earth orbit satellite. If so, the low-Earth orbit satellite forwards the received data to the cloud computing center for processing. If not, the low-Earth orbit satellite processes the data and sends the processing result to the cloud computing center for synchronization.

[0033] In some possible implementations, the cloud computing center and / or the satellite-to-ground direct connection portable device also stores the received data.

[0034] The main advantages of the technical solution of this invention are as follows:

[0035] The IoT system based on direct satellite-to-ground connectivity and its cloud-edge-device collaborative method of the present invention can solve the data reception problem caused by the limited overhead time of low-Earth orbit satellites and the low coverage of terrestrial communication networks, thereby improving the reception capability and flexibility of sensor data; it can improve the control efficiency of sensors and avoid the single point of failure problem that exists when relying solely on the cloud computing center for control; it can realize the collaborative processing of sensor data by portable devices, low-Earth orbit satellites and cloud computing centers through direct satellite-to-ground connectivity, improve the efficiency of sensing data backhaul, reduce the amount of sensor data backhauled to the cloud computing center, and reduce network resource overhead. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and constitute a part of this invention, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram of the structure of an Internet of Things (IoT) system based on direct satellite-to-ground connection according to an embodiment of the present invention;

[0038] Figure 2 This is a flowchart of a cloud-edge-device collaboration method according to an embodiment of the present invention;

[0039] Figure 3 This is a flowchart of another cloud-edge-device collaboration method according to an embodiment of the present invention;

[0040] Figure 4 This is a flowchart of another cloud-edge-device collaboration method according to an embodiment of the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] refer to Figure 1 In a first aspect, an embodiment of the present invention provides an Internet of Things (IoT) system based on direct satellite-to-ground connectivity, the system comprising:

[0044] Sensors can communicate with cloud computing centers and portable devices that connect directly to the ground via terrestrial communication networks to collect and transmit data, and adjust their own operating status according to received control commands.

[0045] Low-Earth orbit satellites are able to communicate with sensors, cloud computing centers, and satellite-to-ground portable devices when passing overhead, and are used to process and forward data sent by sensors and / or satellite-to-ground portable devices, as well as to forward control commands sent by cloud computing centers and / or satellite-to-ground portable devices.

[0046] The cloud computing center communicates with portable satellite-to-ground devices to process data transmitted from sensors and / or low-Earth orbit satellites and / or portable satellite-to-ground devices, and to control the sensors.

[0047] The portable device with direct satellite-to-ground connection is used to process and forward data sent by sensors, to forward control commands sent by cloud computing centers and / or low-Earth orbit satellites, and to control sensors.

[0048] Specifically, in the IoT system based on direct satellite-to-ground connectivity provided in one embodiment of the present invention, the sensor can send the collected data to a cloud computing center, a portable device with direct satellite-to-ground connectivity, or a low-Earth orbit satellite, depending on its own deployment location and the ground communication network conditions at that location. The portable device with direct satellite-to-ground connectivity and the low-Earth orbit satellite can provide communication relay services and edge computing services using their own computing resources. As a communication relay node and an edge computing node, the portable device with direct satellite-to-ground connectivity can provide edge computing services to the sensor, and the low-Earth orbit satellite can provide edge computing services to both the sensor and the portable device with direct satellite-to-ground connectivity. The cloud computing center and the portable device with direct satellite-to-ground connectivity can control the sensor. After receiving control commands from the cloud computing center or the portable device with direct satellite-to-ground connectivity, the sensor adjusts its own operating status according to the control commands.

[0049] An embodiment of the present invention provides an IoT system based on direct satellite-to-ground connectivity. By setting up portable devices for direct satellite-to-ground connectivity for data reception and forwarding, it can solve the data reception problem caused by the limited overhead time of low-Earth orbit satellites and the low coverage of terrestrial communication networks, thereby improving the reception capability and flexibility of sensor data. By integrating the computing resources of low-Earth orbit satellites and portable devices for direct satellite-to-ground connectivity using edge computing technology, and using low-Earth orbit satellites and portable devices for direct satellite-to-ground connectivity as edge computing nodes, it can reduce the network resource consumption caused by multiple forwardings of sensor data in the network. By using cloud computing centers and portable devices for direct satellite-to-ground connectivity to control sensors, it can improve the control efficiency of sensors and avoid the single point of failure problem that exists when relying solely on cloud computing centers for control.

[0050] Furthermore, in one embodiment of the present invention, after adjusting its own operating state according to the received control command, the sensor feeds back its own operating state information to the cloud computing center, satellite-to-ground direct connection portable device, or low-orbit satellite that sent the control command.

[0051] Furthermore, in one embodiment of the present invention, the cloud computing center controls the sensor, including:

[0052] The cloud computing center generates control commands for the sensors based on preset requirements;

[0053] The cloud computing center sends control commands to the sensors via terrestrial communication networks, and / or portable devices with direct satellite-to-ground connections, and / or low-Earth orbit satellites.

[0054] Portable devices with direct satellite-to-ground connections control sensors, including:

[0055] The portable device with direct connection between satellite and ground generates control commands for the sensors according to preset requirements;

[0056] Portable devices with direct satellite-to-ground connections send control commands to sensors via terrestrial communication networks and / or low-Earth orbit satellites.

[0057] The preset requirements are set according to the actual situation.

[0058] By using cloud computing centers and portable devices with direct satellite-to-ground connections to control sensors in the above manner, the control efficiency of sensors can be significantly improved.

[0059] refer to Figure 2 Secondly, an embodiment of the present invention also provides a cloud-edge-device collaboration method for the above-mentioned IoT system based on direct satellite-to-ground connectivity. This method is used to enable the cloud computing center to control the sensor, and includes the following steps:

[0060] The cloud computing center generates control commands for the sensors to be controlled based on preset requirements;

[0061] The cloud computing center checks whether it can connect to the sensor. If so, it sends control commands to the sensor so that the sensor can adjust its operating status according to the received control commands.

[0062] If it cannot connect to the sensor, it determines whether there is a portable satellite-to-ground device that can connect to the sensor. If so, it sends control commands to the portable satellite-to-ground device that can connect to the sensor, so that the portable satellite-to-ground device sends control commands to the sensor, and the sensor adjusts its own operating state according to the received control commands.

[0063] If no portable satellite-to-ground device can connect to the sensor, then when a connection to a low-Earth orbit (LEO) satellite is available, control commands will be sent to the LEO satellite so that the LEO satellite will send the control commands to the sensor. Alternatively, the LEO satellite will send the control commands to a portable satellite-to-ground device that can subsequently connect to the sensor so that the portable satellite-to-ground device will send the control commands to the sensor, allowing the sensor to adjust its operating state according to the received control commands.

[0064] The cloud-edge-device collaboration method provided in one embodiment of the present invention can significantly improve the control efficiency of sensors by utilizing the cloud computing center to control sensors based on the above processing procedure.

[0065] refer to Figure 3 Thirdly, an embodiment of the present invention also provides a cloud-edge-device collaboration method for the above-mentioned IoT system based on direct satellite-to-ground connectivity. This method is used to enable a portable device with direct satellite-to-ground connectivity to control a sensor, and includes the following steps:

[0066] The portable device with direct connection between satellite and ground generates control commands for the sensors to be controlled based on preset requirements;

[0067] The portable device that connects directly to the ground checks whether it can connect to the sensor. If so, it sends control commands to the sensor so that the sensor can adjust its own operating status according to the received control commands.

[0068] If it cannot connect to the sensor, check if it can connect to a low-Earth orbit satellite. If so, send control commands to the low-Earth orbit satellite so that the low-Earth orbit satellite can send control commands to the sensor so that the sensor can adjust its own operating status according to the received control commands.

[0069] If a connection with a low-Earth orbit (LEO) satellite cannot be established, wait for the LEO satellite to pass overhead. When the LEO satellite passes overhead, send control commands to the LEO satellite so that the LEO satellite can send the control commands to the sensor, allowing the sensor to adjust its operating state according to the received control commands.

[0070] The cloud-edge-device collaboration method provided in one embodiment of the present invention can significantly improve the control efficiency of sensors by using a portable device with direct satellite-to-ground connection to control the sensors based on the above processing procedure.

[0071] refer to Figure 4 Fourthly, an embodiment of the present invention also provides a cloud-edge-device collaboration method for the above-mentioned IoT system based on direct satellite-to-ground connectivity. This method is used to achieve collaborative processing of sensor data and includes the following steps:

[0072] Determine whether the sensor can connect to the cloud computing center. If so, send the data collected by the sensor to the cloud computing center for processing.

[0073] If the sensor cannot connect to the cloud computing center, it is determined whether the sensor can connect to the satellite-to-ground direct connection portable device. If so, the data collected by the sensor is sent to the satellite-to-ground direct connection portable device, and it is determined whether the processing task corresponding to the received data exceeds the processing capacity of the satellite-to-ground direct connection portable device. If the processing task corresponding to the received data does not exceed the processing capacity of the satellite-to-ground direct connection portable device, the data is processed using the satellite-to-ground direct connection portable device, and the processing result is sent to the cloud computing center for synchronization.

[0074] If the processing workload corresponding to the received data exceeds the processing capacity of the portable satellite-to-ground connection device, it is determined whether the portable satellite-to-ground connection device can connect to the cloud computing center. If so, the received data is forwarded to the cloud computing center using the portable satellite-to-ground connection device, and the cloud computing center processes the data. If not, it waits to connect to the low-Earth orbit satellite. After it can connect to the low-Earth orbit satellite, the received data is forwarded to the low-Earth orbit satellite.

[0075] If the sensor cannot connect to the portable device with direct satellite-to-ground connection, the data collected by the sensor is sent to a low-Earth orbit satellite that can connect to the sensor. After the low-Earth orbit satellite receives the data sent by the sensor or the portable device with direct satellite-to-ground connection, it determines whether the processing workload of the received data exceeds the processing capacity of the low-Earth orbit satellite. If so, the low-Earth orbit satellite forwards the received data to the cloud computing center for processing. If not, the low-Earth orbit satellite processes the data and sends the processing result to the cloud computing center for synchronization.

[0076] The cloud-edge-device collaboration method provided in one embodiment of the present invention can achieve collaborative processing of sensor data by portable devices, low-orbit satellites and cloud computing centers through the above-mentioned data processing process, which significantly reduces the amount of sensor data transmitted back to the cloud computing center and reduces network resource overhead.

[0077] Furthermore, in one embodiment of the present invention, the cloud computing center and / or the satellite-to-ground direct-connect portable device also stores the received data.

[0078] By storing the received data, subsequent needs such as calling and querying can be met.

[0079] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, the terms "front," "back," "left," "right," "upper," and "lower" in this document refer to the placement shown in the accompanying drawings.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An Internet of Things (IoT) system based on direct satellite-to-ground connectivity, characterized in that, include: Sensors can communicate with cloud computing centers and portable devices that connect directly to the ground via terrestrial communication networks to collect and transmit data, and adjust their own operating status according to received control commands. The low-orbit satellite is able to communicate with the sensor, the cloud computing center and the satellite-to-ground direct connection portable device when it passes overhead, and is used to process and forward data sent by the sensor and / or the satellite-to-ground direct connection portable device, as well as to forward control commands sent by the cloud computing center and / or the satellite-to-ground direct connection portable device. The cloud computing center is communicatively connected to the portable satellite-to-ground connection device, and is used to process data sent by the sensor and / or the low-orbit satellite and / or the portable satellite-to-ground connection device, as well as to control the sensor. The portable device with direct satellite-to-ground connection is used to process and forward data sent by the sensor, to forward control commands sent by the cloud computing center and / or the low-orbit satellite, and to control the sensor. The cloud computing center controls the sensor, including: The cloud computing center generates control commands for the sensors to be controlled based on preset requirements; The cloud computing center checks whether it can connect to the sensor. If so, it sends control commands to the sensor so that the sensor can adjust its operating status according to the received control commands. If it cannot connect to the sensor, it determines whether there is a portable satellite-to-ground device that can connect to the sensor. If so, it sends control commands to the portable satellite-to-ground device that can connect to the sensor, so that the portable satellite-to-ground device sends control commands to the sensor, and the sensor adjusts its own operating state according to the received control commands. If no portable device with direct satellite-to-ground connection can connect to the sensor, then when a connection with a low-Earth orbit satellite is possible, control commands will be sent to the low-Earth orbit satellite so that the low-Earth orbit satellite will send the control commands to the sensor, or the low-Earth orbit satellite will send the control commands to a portable device with direct satellite-to-ground connection that can subsequently connect to the sensor so that the portable device with direct satellite-to-ground connection will send the control commands to the sensor, and the sensor will adjust its own operating state according to the received control commands. The portable device with direct satellite-to-ground connection controls the sensor, including: The portable device with direct connection between satellite and ground generates control commands for the sensors to be controlled based on preset requirements; The portable device that connects directly to the ground checks whether it can connect to the sensor. If so, it sends control commands to the sensor so that the sensor can adjust its own operating status according to the received control commands. If it cannot connect to the sensor, check if it can connect to a low-Earth orbit satellite. If so, send control commands to the low-Earth orbit satellite so that the low-Earth orbit satellite can send control commands to the sensor so that the sensor can adjust its own operating status according to the received control commands. If a connection with a low-Earth orbit (LEO) satellite cannot be established, wait for the LEO satellite to pass overhead. When the LEO satellite passes overhead, send control commands to the LEO satellite so that the LEO satellite can send the control commands to the sensor, allowing the sensor to adjust its operating state according to the received control commands.

2. The IoT system based on direct satellite-to-ground connection according to claim 1, characterized in that, After adjusting its own operating state according to the received control command, the sensor feeds back its own operating state information to the cloud computing center, the satellite-to-ground direct connection portable device, or the low-orbit satellite that sent the control command.

3. A cloud-edge-device collaboration method for an IoT system based on direct satellite-to-ground connectivity as described in any one of claims 1-2, characterized in that, include: Determine whether the sensor can connect to the cloud computing center. If so, send the data collected by the sensor to the cloud computing center for processing. If the sensor cannot connect to the cloud computing center, it is determined whether the sensor can connect to the satellite-to-ground direct connection portable device. If so, the data collected by the sensor is sent to the satellite-to-ground direct connection portable device, and it is determined whether the processing task corresponding to the received data exceeds the processing capacity of the satellite-to-ground direct connection portable device. If the processing task corresponding to the received data does not exceed the processing capacity of the satellite-to-ground direct connection portable device, the data is processed using the satellite-to-ground direct connection portable device, and the processing result is sent to the cloud computing center for synchronization. If the processing workload corresponding to the received data exceeds the processing capacity of the portable satellite-to-ground connection device, it is determined whether the portable satellite-to-ground connection device can connect to the cloud computing center. If so, the received data is forwarded to the cloud computing center using the portable satellite-to-ground connection device, and the cloud computing center processes the data. If not, it waits to connect to the low-Earth orbit satellite. After it can connect to the low-Earth orbit satellite, the received data is forwarded to the low-Earth orbit satellite. If the sensor cannot connect to the portable device with direct satellite-to-ground connection, the data collected by the sensor is sent to a low-Earth orbit satellite that can connect to the sensor. After the low-Earth orbit satellite receives the data sent by the sensor or the portable device with direct satellite-to-ground connection, it determines whether the processing workload of the received data exceeds the processing capacity of the low-Earth orbit satellite. If so, the low-Earth orbit satellite forwards the received data to the cloud computing center for processing. If not, the low-Earth orbit satellite processes the data and sends the processing result to the cloud computing center for synchronization.

4. The cloud-edge-device collaboration method according to claim 3, characterized in that, The cloud computing center and / or the portable satellite-to-ground connection device also store the received data.

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