| 摘要(英) |
With the rapid development of the Internet of Things (IoT), the number of IoT devices has reached 30 billion in 2020, and it is estimated that the number of IoT devices will exceed 75 billion in 2025. Among them, the sensor equipment of the Industrial Internet of Things (IIoT) accounts for the majority. In addition, the sensor equipment in the factory can choose an appropriate transmission protocol as a medium according to its application and transmission quality requirements, such as mobile network, Bluetooth Low Energy (BLE), Wireless Smart Utility Network (Wi-SUN), Wi-Fi, etc. However, these communication solutions are quite different which will have difficulty in management and maintenance of sensor equipment. Therefore, it is necessary to have a management system with open interface to support all kinds of transmission solutions used in IIoT network.
Fortunately, in recent years, open radio access network (O-RAN) has become prevalent. In addition to the advantage of open interface, AI/ML combined architecture and high deployment flexibility, O-RAN also provides Service Management and Orchestration (SMO) function for network administrator to monitor and manage network functions, so that the equipment from different vendors can be easily integrated. Based on such benefit brought from open interface, this thesis will propose an O-RAN-based industrial internet of things system (named as O-IIoT), which aims to provide the network framework for heterogeneous sensors deployed in factory, which may reduce the maintenance and operation cost.
In order to verify the feasibility of O-IIoT system, this study takes Wi-SUN as an experimental example to evaluate the ability of the proposed network framework via dynamically adjusting the parameters of Polling Interval and Reporting Interval stored in a sensor device also react to unexpected situations. |
| 參考文獻 |
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42
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