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| Design and realization of cross platform IoT framework based on SOA |
| 1. College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China; 2. Shandong Sady Medical Technology Co., Ltd., Taian, Shandong 271000, China |
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Abstract To expand the application of internet of things (IoT) technology in cross platform and plug-and-play(PnP), a SOA-based development framework was designed. To achieve API unification, the concept of service template was proposed to standardize the generation of services and instantiate service instances. To improve development efficiency, the mechanism of publishing, querying and subscribing of service instances was designed. Based on TCP protocol, the encoding rules of services were raised to determine the transmission form of the services over the network. The session layer, representation layer and application layer were designed to convert the upper layer service content into formatted data objects. A life cycle management system was designed to achieve PnP and enable the dynamic management of IoT services. Considering the difficulties in communication between different subnets, the mirror services were also designed in the framework to realize the indirect communication between different subnets. The versatility in different application scenarios was verified by setting up service providers and service requesters in different platforms for testing. The test results show that SOA architecture realizes the loose coupling and improves the reusability in IoT systems, and the flexibility and composability of SOA architecture are further improved.
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Received: 05 November 2021
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2023, Vol. 44 
