788.11J Presentation“Intelligent Home Control Systemsbased on Active Sensor Networks”

Presented by :Ahmed Mahmoud Ahmed

The Main Idea

• Its idea is to control all home devices through

wireless sensor network(active sensor network)

using sensors can automatically gather physical

sensing information and efficiently control various

home devices using smart actuators such as relay

switches or Infra-Reds using new routing protocol

called Link Quality Indicator based Routing

Protocol (LQIR) to improve the performance of

system

The Main Achievements•The main achievement is to control the home devices

and take critical actions automatically

•This system used to accomplish some functions to

control and check home devices as:

1.Crime Detection through detect movement

2.Control complex consumer home devices. TV, DVD, air

conditioner and air cleaner

3.Control and check home devices through internet while

the owner is out

4.Locking gas valves

5.Control lamp brightness

The Challenges

•The system make his functions using:

1.Sensing Component: The component gathers sensing data and

special event information from the active home environments

and provide this information to the decision component

•Generic sensor typed nodes try either to detect the general

physical sensing measurements such as temperature ,humidity

and light or check for the special events such as gas leaks ,

human movement

•actuator typed nodes can directly control consumer home

devices , ability of actuator is limited to turn on/off actions,

utilizes IR (Infra-Red) communication also in order to instruct

consumer devices such as TV, Air Conditioners

• Sensors used as :

1. Light sensor

2. Motion detector

3. Gas detector

• Actuator used as :

1. Switch (ac-dc)

2. Infra red switch

2. Decision Component: The component

recognizes the current home environment

and enables the service components to select

the appropriate service.

3. Service Components: These components

represent some ubiquitous home services

provided by system

4. Control Component: The component

instructs special control commands to the

deployed actuators, such as relay switches or

Infra-Reds.

5. Interaction Component: The component

manages interaction between control system

and the active sensors.

6.Additional Communication Components:

These components manage some other

networking technologies such as

WLAN ,Ethernet

• System supported by new protocol (LQIR) because

Conventional routing protocols are difficult to accommodate

to dynamic topology variations and to interact with our home

control system by establishes the wireless network, based on

the LQI value measured from the RF radio ,When forwarding

the data packet to the sink, the node selects the special

node having the best LQI value among neighbors

dynamically , it utilize the B-MAC protocol for shared media

access, and a special narrow-band RF device that supports

the LQI value, based on the IEEE 802.15.4 standard

types of packets :

1. Sensing packets ( set-command ,data command, event

comment )

2. Control-Command packet

Some smart sensors

Innovation

• It have a very great idea to control devices when being

outside ,.. It use Ethernet as bridge between system

and internet ,.. so users can access with the home

HTTP server through a laptop and PDA in the house

• Reference :

http://uns.ajou.ac.kr/publications/paper/J2008/SCS

_TCE.pdf