exploring the use of dns as a search engine for the web of things
DESCRIPTION
This paper was presented at the IEEE World Forum on Internet of Things (WF-IoT), at Seoul, Korea in March, 2014. It proposes a real-time, global approach for discovering physical entities through the Web, by means of the Domain Name System (DNS). Abstract: Sensor technology is becoming pervasive in our everyday lives, measuring the real world around us. The Internet of Things enables sensor devices to become active citizens of the Internet, while the Web of Things envisions interoperability between these devices and their services. An important problem remains the need for discovering these devices and services globally, ad hoc in real-time, within acceptable time delays. Attempting to solve this problem using the existing Internet infrastructure, we explore the exploitation of the Domain Name System (DNS) as a scalable and ubiquitous directory mechanism for embedded devices. We examine the feasibility of this approach by performing a simulation involving up to one million embedded devices, to test system performance and scalability. Finally, we discuss practical issues and the overall potential of this approach.TRANSCRIPT
Exploring the Use of DNS as a Search Engine for the Web of Things
Andreas Kamilaris, Koula Papakonstantinou and Andreas Pitsillides
World Forum on Internet of Things, Seoul, Korea 6 March 2014
StandardizedGlobal
Scalable
Flexible
Ubiquitousto Web users
Comply with existing Internet standards Not major changes to the
existing technical equipment and protocols
StandardizedGlobal
Scalable
Flexible
Ubiquitousto Web users
Comply with existing Internet standards Not major changes to the
existing technical equipment and protocols
Users could discover environmental services simply
by typing related keywords in their favorite Web browser
Use DNS as a scalable, pervasive, global meta-data repository for embedded devices, supporting location-
based discovery of Web-enabled physical entities.
1. New top-level domain: .env
2. Device Registration
3. Service Discovery
3a. Listing Services: service.location.env
3b. Selecting Device: sensorid.service.location.env
3c. Translating URL: Map to an IPv4/IPv6 address
3d. Describing Device/Service: WADL (?)
3e. Constructing Request: REST
Registration: {A, SRV, TXT} DNS
recordsQuerying: dig env.service.location
.env axfr
Service Discovery
Each zone represents a service/location pair.In both cases, 1M sensor devices max.
80-100 Devices/Zone.1-10 Devices/Zone.
Devices are added sequentially, one-after the other.
Device Registration
Storage Requirements
Open Issues
Reliability Consistency
Performance
Management
Name conventions
Trust
Privacy
Security
Challenges-Opportunities
Automation
Personalization
Generalization
M2M Communication
Extension
User preferences, retrieval from online social networks
Env. ontologies, general inference, advanced mashups
Domain vocabularies, constructing advanced URLs and queries
We only scratched the surface…
