IOT gateways.pptx
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An IoT gateway bridges communication between devices, sensors, systems and the cloud. It offers local processing and storage, and can autonomously control devices based on sensor data. IoT gateways aggregate, process and filter data for secure transmission from the edge to the cloud. They bridge different sensing domain protocols with network domain protocols through protocol conversion and multi-interface connectivity to various wireless standards. Common features of IoT gateways include supporting multiple interfaces, protocol conversion, manageability, and acting as a bridge between sensing and network domains.
IOT gateways.pptx
- 1. A brief introduction to IoT gateway
- 2. 2 Introduction divided into three parts in IoT gateway • Sensing domain, Network domain, Application domain • Sensing domain - Interact and communicate ‘things’ - Consist of many things information and to relize information of physical target - Using Wireless sensor network(WSN), RFID, FieldBus, Barcode, Zigbee - Provide network domain with valuable - Obstacle : Low power, low cost, protocol lightweight • Network domain - Evolved communication infrastructure · PSTN, 2G, 3G, LTE, Satellite - Main roles : to transfer the data collected from sensing domain to remote destination
- 3. 3 Why gateways are required in an IoT solution? An IoT gateway bridges the communication gap between devices, sensors, equipment, systems and the cloud. By systematically connecting the cloud, IoT gateway offer local processing and storage, as well as an ability to autonomously control field devices based on data inputs by sensors. IoT gateways also enable customers to securely aggregate, process and filter data for analysis. It helps ensure that the federated data generated by devices and systems can travel securely and safely from the edge to the cloud.
- 4. 4 Introduction • Application domain - Take responsibility for Data processing and services - Data from transmission layer is handled - various services provide to user
- 5. 5 Three sensing domain network PAN Network • Personal area network • Interacted sensing devices around the person • Used smart phone, laptop, customized device • Acted as the IoT gateway, control signaling and data transmitted the IoT gateway • A wired connect using USB/Fire wire • A wireless connect using IrDA, Bluetooth, Wireless USB, ZigBee • IoT gatway usually registers in the backend servers
- 6. 6 Three sensing domain network Vehicle network • Two type of vehicle communication - Inside a vehicle - From/to vehicle • Vehicle IoT gateway collecte information surrounding ‘things’ - road,rail,..etc • Radio Frequency Identification technology - Improved vehicle logisticsm quality control, tracking • Dedicated Short Range Communication - The possibility of highter bit rates - Reduce the possibility of interference with other equipment • Intelligent Transportation Systems - It will be improved vehicle safety service and traffic management
- 7. 7 Three sensing domain network Home network • Constructed with sensor, micor actuators, information home appliances..etc • Home IoT Gateway interconnecte multiple smart devices together - Shared resouces, information - Integrate several common network protocols - Supports the intercommunication among the equipments with different network protocols - Control in-home smart equipments • Contect external networks - Need to access frome IoT Gateway to 2G/3G/mobile communication network modules - Can be managed smart things everwhere
- 8. 8 Common features of IoT gateway Features of IoT gateway • Bridging the communication between sensing domain and network domain • It can be quite different from application to application • Common form of IoT gateway
- 9. 9 Common features of IoT gateway Features of IoT gateway • Multiple interfaces - Connected to a IoT gateway through technologies · Zigbee · Bluetooth · Wifi · CAN-Controller area network - Can choice to connect to the public network · Kind of PSTN, 2G/3G, LTE..etc - Gateway should support depends on related application requirements, operation strategies and implement solutions • Protocol conversion - IoT gateway need execute protocol conversion - Need to communicated between different sensing domain protocol · Occur communicate sensing domain protocol to network domain protocol
- 10. 10 Common features of IoT gateway Features of IoT gateway • Manageability - Managed IoT gateway by itself - Back-end IoT server provide information · Subscription · Authority · Status · Mobility..etc - IoT gateway have abilities to manage ‘smart thing’ · Identify · Control · Diagnose · Configure • IoT gateway goal : to bridge various sensing domain networks with public communication network or internet
- 11. 11 Reference model of IoT gateway Reference model of IoT gateway
- 12. 12 Reference model of IoT gateway Reference model of IoT gateway • Service abstraction module - Address fragmentation of IoT applications - Several functions · Uniform interfaces for service providers to simply application development · IoT application developers do not need deep understanding of underlying technologies · Enables underlying networks to use IoT optimization • IoT Gateway system use short-distance wireless communication protocol - Zigbee, Bluetooth • Adaption module - Focus on adaption the packet size of two different networks, address resolution - Eg. IPv6 packet transmit IEEE 802.15.4 networks
- 13. 13 Reference model of IoT gateway Reference model of IoT gateway • Protocol conversion&data forwarding module - Interact with service abstraction module, adaption module, multi- interfaces module - Analyzed and repackaged the sensing data · Based on short-distance communication protocols - Capsulated and send data based on telecommunication protocols - Transfer data from one network to another notwork correctly • Application profile module and network profile module - Provided contexts to Multi-Interfaces module - Helped Multi-Interfaces module can decision to use network interface
- 14. 14 Reference model of IoT gateway Reference model of IoT gateway • Application profile module - Provided application level information - Can watch the type and number of application currently running • Security and Management - based on ICT system - Security provid access control, data integrity, privacy protections - Management provid management · Network · power · fault · authority · status · mobility
- 15. 15 Conclusion Conclusion • IoT communication is quite different from the traditional human to human communication using internet infrastructure • Prime problem - Integrated kinds of sensing networks and telecommunication networks and Internet - Using IoT gateway is key to solve intergration