1. Energy saving for home (Graduation work)
Mid-Term Report
Energy saving for home
(Graduation work)
8th team : T.I.D
Leader : Kim sung soo
Member : Kim kyu beom
Kim ji woong

2. Contents Schedule Update Issues & the Approach Related Work
Design Constraints
System Design
Related Work
Experimental Setup
Expected Results
References Update

3. Schedule Update March April May June July Make a Plan Product design
Purchase
Materials
Make Hardware
Make
Software
Inspection
Performance
Improvement
Maintenance

4. Issues & the Approach Price of a ZigBee chip : 26,500 won
Design Constraints – Economy
Price of a ZigBee chip : 26,500 won
Price of a ATmega : 40,000 won
Price of a Relay switch : 11,000 won
If you want to control much more, the price will be higher.

5. Issues & the Approach Design Constraints – Ethics
Our project must follow the rules below. ( - Electronics Engineering graduate work rules)
Design Constraints – Reliability
- The chip can be initialized while using the ZigBee chip.
- So it is necessary to adjust the number of transmission time intervals and the node.

6. Issues & the Approach Design Constraints – Esthetics
Since controlling the outlet in the relay switch, it is not good to display.
So it installed on the inside of the wall so that the relay is not visible.

7. Issues & the Approach System Design - Block Diagram SmartPhone
Atmega128
DC Motor
Relay Switch
Bluetooth signal
Lamp
Zigbee
signal
Valve
Outlet

8. Issues & the Approach System Design – Hardware Configuration
- AVR Part Bluetooth, Zigbee, Atmega 128
- Lamp Part Zigbee, Lamp
- Outlet Part Zigbee, Relay Switch, Outlet
- Valve Part Zigbee, DC Motor, Valve

9. Issues & the Approach System Design – Software Configuration
- SmartPhone Part Android Studio : Making App.
- AVR Part Atmel Studio : Making Source
- Zigbee Part HyperTerminal : Set to ZigBee.

10. Related Work Previous work This device use remote control.
Transmission distance is limited by
the remote control.
Because the infrared system, it get in the way an obstacle.
output
rotating part 
Power LED 
Register button
Power button 
Select button

11. Technical Advancement
Zigbee
Instead of using the IR, ZigBee complements the limitations of distance.
If there is an obstacle it is also possible communication.
Smartphone
Easily manage the control product with a smart phone.
This can be controlled without remote control.

12. Experimental Setup
Software - Android Studio : Develop Android apps. - Atmel Studio : Programming code in AVR - HyperTerminal : Setting a Zigbee chip using the serial communication.

13. Experimental Setup
Hardware - SmartPhone : Using the application transmits a signal via Bluetooth to AVR. - Atmega128 : The signal transmitted from the smart phone receives via Bluetooth. Then the signal is transmitted to each device via the ZigBee. - Zigbee chip : The transmit and receive signals between the device and the AVR. - Bluetooth Chip : The transmit and receive signals between the smartphone and the AVR.

14. Experimental Setup
Hardware - DC Motor : Controlling the valve in accordance with the signal received through the Zigbee chip. - Relay Switch : Controlling the outlet in accordance with the signal received through the Zigbee chip.

15. Expected Results It is linked to smart phones and ATmega in Bluetooth.
Run the application to control the product.
It sends a signal to the ATmega through the Bluetooth in the app.
ATmega and products communicate via ZigBee.
It operates the product in the received signal in ZigBee.

16. References http://arduino.cc/en/Main/ArduinoBoardUno
Lee du jin, Android app based and hands-on projects, PC Book
Hwang ki tae·kim hyo soo, Luxury JAVA Programming, Saengneung published

17. Contents Schedule Update Issues & the Approach Related Work
Design Constraints
Industrial Standard, Economy, Ethics, Robustness, Reliability, Esthetics, Effects to Environment, Etc.
System Design
Block / Circuit Diagram
Hardware / Software Configuration
Related Work
To Show the Contribution of the Work
Clarification of the Difference between the Proposed Work and the Previous Work
Technical Advancement
Experimental Setup
CAD Tools, Design Kits
Expected Results
References Update