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Low-speed and non-real-time satellite Internet-of-Things terminal data return method and system

An Internet of Things terminal and non-real-time technology, applied in the field of satellite communication, can solve problems such as low real-time requirements and small data volume, and achieve the effects of low cost, reduced requirements, and efficient transmission

Active Publication Date: 2021-11-12
南京控维通信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, IoT terminals in the industries of electric power, water conservancy, natural gas, and oil are all deployed in remote areas without ground or mobile network coverage, and have the characteristics of small data volume and low real-time requirements

Method used

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  • Low-speed and non-real-time satellite Internet-of-Things terminal data return method and system
  • Low-speed and non-real-time satellite Internet-of-Things terminal data return method and system
  • Low-speed and non-real-time satellite Internet-of-Things terminal data return method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] In response to small, non-real-time Internet of Things data in remote areas, a low-speed, non-real-time satellite network terminal data return method is used to efficiently and reliably return the data to the data platform, which specifically includes the following steps. :

[0059] Step 1, establish a communication link with the subscriber station by collaborative network control;

[0060] Step Second, the user terminal accesss the network control center according to the communication link;

[0061] Step three, the user terminal and the network control center are submitted according to the demand.

[0062] Specifically, such as image 3 As shown, the user entry and work slot assignment are completed by the collaborative process of the network control center and the user station. like Figure 4 As shown, the user terminal access to the network control center according to the communication link is: First, the TDM carrier signal and TDMA carrier signal are initialized by the ne...

Embodiment 2

[0074] During the establishment of a communication link, the continuous forward TDM carrier signal transmitted by the network control is divided into two types, one of which is a normal TDM signal data for network control center configuration information broadcast and control signaling. The other is a clock synchronization signal for a clock synchronization of all user terminals. In the return link, an MF-TDMA transmission body is used, and the traffic data transmitted by the user terminal and a small amount of control signaling is included.

[0075] In a further embodiment, the network control center transmits a continuous forward TDM carrier signal, with a rate of 64 kbps, a return link, a rate of burst TDMA signals 16 kbps. The TDMA signal is divided according to 1 kbps, and 16 time slots can be assigned, and 16 users can be supported, and each user can occupy a bandwidth of 1 kb / s. More end users can be supported by increasing the number of TDMA carriers.

[0076] The front ...

Embodiment 3

[0078] In order to establish a business data return link, the end user needs to obtain the frequency point of the TDMA carrier transmitted by the network control interaction and the TDM carrier frequency of receiving the network control center message data. This embodiment uses the mode of the TDM carrier in the user terminal, and the TDMA frequency point information and time slot information used to the end user planning is received on the TDM frequency of the terminal setting, and the working parameters of the terminal are used to set the operating parameters of the terminal, such as Figure 7 As shown, the link established by its link is as follows:

[0079] Step 1, the network management system in the network control establishs TDM carrier information and TDMA carrier information, the network management system starts timing broadcast planning information and key information.

[0080] Step 2, the manager adds the user terminal to the communication link.

[0081] Step 3, after th...

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PUM

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Abstract

The invention provides a low-speed and non-real-time satellite Internet-of-Things terminal data return method and system. The method comprises the following steps: step 1, establishing a communication link between a collaborative network control center and a user terminal; step 2, enabling the user terminal to access the network control center according to the communication link; and step 3, enabling the user terminal and the network control center to carry out data return according to requirements. The low-speed non-real-time Internet of Things data return method is carried out by adopting multiple low-speed forward and reverse carriers, a pre-planned time slot and a simplified packaging format, efficient transmission of data is realized by fully utilizing limited physical resources of satellites, and the requirements on user terminal equipment are reduced through the design of the low-speed forward and reverse carriers, and the cost of user terminal equipment is lower.

Description

Technical field [0001] The present invention relates to a low speed, non-real-time satellite network terminal data return method and system, particularly to the field of satellite communication technology. Background technique [0002] With the vigorous development of science and technology, the Internet of Things technology began to infiltrate in various fields. In the past ten years of development, the Internet technology of Internet of Things technology is more abundant, technology and application innovation, and the development speed is getting faster. . However, there is a remote area where power, water conservancy, natural gas, and oil industry is deployed in remote areas without ground or mobile network, and there is a small amount of data, and the real-time requirements are not high. How to achieve small amounts of remote areas, non-real-time Internet of Things data, reliably return to the data platform, have become the problem that needs to be solved now. Inventive cont...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04W12/03H04W28/06H04W72/04H04W76/10
CPCH04B7/18513H04B7/18519H04W12/03H04W28/065H04W76/10H04W72/0446Y02D30/70
Inventor 石锋吴博蔡熹
Owner 南京控维通信科技有限公司