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 Copyright 2010 Digital Enterprise Research Institute. All rights reserved.
Digital Enterprise Research Institute www.der...
Digital Enterprise Research Institute www.deri.ie
Agenda
 Paper Overview
 Motivation
 Architecture
 Task Assignment
 ...
Digital Enterprise Research Institute www.deri.ie
Paper Overview
 Motivation
 Internet of Things (IoT) based systems gat...
Digital Enterprise Research Institute www.deri.ie
Architecture
 Our focus
 Data Management for IOT
 Task Management for...
Digital Enterprise Research Institute www.deri.ie
Data Management for IOT
 Three types of information
 Sensor observatio...
Digital Enterprise Research Institute www.deri.ie
Task Management for IOT
 Middleware to access
crowds
 Core functionali...
Digital Enterprise Research Institute www.deri.ie
Task Assignment
 Location and availability information enables assignme...
Digital Enterprise Research Institute www.deri.ie
Task Assignment: Pull
 Link tasks with “things” using QR code
 QR code...
Digital Enterprise Research Institute www.deri.ie
Task Assignment: Push
 Use location and availability information to rou...
Digital Enterprise Research Institute www.deri.ie
Implementation
 Use case
 Energy Management System for small commercia...
Digital Enterprise Research Institute www.deri.ie
Screenshot
11
Digital Enterprise Research Institute www.deri.ie
Linked Dataspace
 A dataspace supports coexistence of heterogeneous
ene...
Digital Enterprise Research Institute www.deri.ie
Building Energy Data
 Observations
 Metadata
13
{
"sensorId": "coap_se...
Digital Enterprise Research Institute www.deri.ie
Micro Tasks
Task Description Assignment Method
Sensor Location
This task...
Digital Enterprise Research Institute www.deri.ie
Experiment & Results
 Deployed system with no sensor locations and room...
Digital Enterprise Research Institute www.deri.ie
Observations
 Proposed approach is simple
 Results indicate positive p...
Digital Enterprise Research Institute www.deri.ie
Further Reading
U. Ul Hassan, M. Bassora, A. H. Vahid, S. O'Riain and E....
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A Collaborative Approach for Metadata Management for Internet of Things

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https://www.insight-centre.org/content/collaborative-approach-metadata-management-internet-things-linking-micro-tasks-physical

Presented at CollaborateCom 2013

ABSTRACT:
There has been considerable efforts in modelling the semantics of Internet of Things and their specific context. Acquiring and managing metadata related to the physical devices and their surrounding environment becomes challenging due to the dynamic nature of environment. This paper focuses on managing metadata for Internet of Things with the help of crowds. Specifically, the paper proposes a collaborative approach for collecting and maintaining metadata through micro tasks that can be performed using variety of platforms e.g. mobiles, laptops, kiosks, etc. The approach allows non-experts to contribute towards metadata management through micro tasks, therefore resulting in reduced cost and time. Applicability of the proposed approach is demonstrated through a use case implementation for managing sensor metadata for energy management in smallbuildings.

Published in: Data & Analytics
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A Collaborative Approach for Metadata Management for Internet of Things

  1. 1.  Copyright 2010 Digital Enterprise Research Institute. All rights reserved. Digital Enterprise Research Institute www.deri.ie A COLLABORATIVE APPROACH FOR METADATA MANAGEMENT FOR INTERNET OF THINGS Umair ul Hassan, Murilo Bassora, Ali H. Vahid, Sean O’Riain, Edward Curry Digital Enterprise Research Institute National University of Ireland, Galway First International Workshop on Internet of Things Austin, Texas, USA C-IOT 2013
  2. 2. Digital Enterprise Research Institute www.deri.ie Agenda  Paper Overview  Motivation  Architecture  Task Assignment  Implementation  Experiment  Summary 2
  3. 3. Digital Enterprise Research Institute www.deri.ie Paper Overview  Motivation  Internet of Things (IoT) based systems gather data about things and their environment  Metadata describes things as well as their context and environment  Dynamism Problem  Changing environment and context renders metadata invalid  Acquisition of metadata is difficult and expensive  Contribution  A collaborative approach for metadata acquisition and management through non-experts  Use location and availability information of crowds to assign tasks 3
  4. 4. Digital Enterprise Research Institute www.deri.ie Architecture  Our focus  Data Management for IOT  Task Management for IOT 4
  5. 5. Digital Enterprise Research Institute www.deri.ie Data Management for IOT  Three types of information  Sensor observations data  Metadata about sensors and its context  Data processing rules  Rate of change for above information 5
  6. 6. Digital Enterprise Research Institute www.deri.ie Task Management for IOT  Middleware to access crowds  Core functionality  Task Assignment  Task Presentation  Quality Assurance 6
  7. 7. Digital Enterprise Research Institute www.deri.ie Task Assignment  Location and availability information enables assignment of task to appropriate person  Two method of task assignment  Task Pull  Task Push 7
  8. 8. Digital Enterprise Research Institute www.deri.ie Task Assignment: Pull  Link tasks with “things” using QR code  QR code represents a URL  URL renders task in appropriate browser 8
  9. 9. Digital Enterprise Research Institute www.deri.ie Task Assignment: Push  Use location and availability information to route tasks  Track sensor location data submitted by crowd  Assignment tasks related to submitted location information 9
  10. 10. Digital Enterprise Research Institute www.deri.ie Implementation  Use case  Energy Management System for small commercial buildings  Digital Enterprise Research Institute (DERI)  130 Occupants  22 Office Units  Deployment  14 CoAP sensors  Customer Web Application 10
  11. 11. Digital Enterprise Research Institute www.deri.ie Screenshot 11
  12. 12. Digital Enterprise Research Institute www.deri.ie Linked Dataspace  A dataspace supports coexistence of heterogeneous energy data sources  Linked Data to overcome interoperability issues through Web standards  Linked dataspace for Energy Intelligence (LEI)  Micro Tasks -> Incremental Metadata Improvement  Our collaborative approach supports the incremental improvement paradigm of dataspaces 12
  13. 13. Digital Enterprise Research Institute www.deri.ie Building Energy Data  Observations  Metadata 13 { "sensorId": "coap_sensor_001", "timestamp": "2013-07-14 19:43:37", "reading": "25", "type": "temperature", "unit": "C" } { "sensorId": "coap_sensor_001", "sensorName": "DERI CoAP Sensor 1", "location": "r112" "platform": "desk" } { "roomId": "r112", "wing": "2nd-floor-south-wing", "lights": 5, "windows": 2, "heaters": 2 }
  14. 14. Digital Enterprise Research Institute www.deri.ie Micro Tasks Task Description Assignment Method Sensor Location This task requires participants to specify the location of sensor Task pull based on QR code Room Lights This task asks participants to specify number of fluorescent light installed in the room Task push based on per-son location Room Heaters This task asks participants to specify the number for heaters in the room Task push based on per-son location Room Windows This task asks participants to specify the number of windows in the room Task push based on per-son location 14
  15. 15. Digital Enterprise Research Institute www.deri.ie Experiment & Results  Deployed system with no sensor locations and rooms data  Building occupants received email to find sensors and scan QR codes  Accuracy of crowd submitted data 15 Task Accuracy Sensor Location 85.71% Room Lights 100% Room Heaters 83.33% Room Windows 100%
  16. 16. Digital Enterprise Research Institute www.deri.ie Observations  Proposed approach is simple  Results indicate positive potential application  Simple user interface and short completion time of tasks is important for non-expert contribution  Future Work  More use cases  Large scale study  Crowd motivation 16
  17. 17. Digital Enterprise Research Institute www.deri.ie Further Reading U. Ul Hassan, M. Bassora, A. H. Vahid, S. O'Riain and E. Curry, “Collaborative Approach for Metadata Management for IoT: Linking Micro Tasks with Physical Objects,” in First International Workshop on Internet of Things, 2013. http://deri.ie/users/umair-ul-hassan 17 First International Workshop on Internet of Things Austin, Texas, USA 20 October 2013

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