IoT definition
Based on the traditional information carriers including the Internet, telecommunication network and so on, the Internet of Things( IoT) is a network that Inter-connects ordinary physical objects with the identiable addresses so that provides intelligent services.
Three characteristics of IoT
- Ordinary object are instrumented
- Automatic terminals are interconnected (自治终端互联化)
- Pervasive services are intelligent (普适服务智能化)
OSI (Open System Interconnection)
- Physical Layer
- Data Link Layer
- Network Layer
- Transport Layer
- Session Layer
- Presentation Layer
- Application Layer
Four-layer architecture model of IoT
- Object Sensing layer
- Data exchange layer
- Information integration layer
- Application service layer
Three characteristics of IoT
- More Intensive Information Perception (更透彻的信息感知)
- More Extensive Interconnection
- More Comprehensive Intelligent Service
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