Smart Home with Voice Commands Based on Android. Sulistyo Widodo ELECTRICAL ENGINEERING SUPERVISOR : Dr. Sunny Arief Sudiro

Transcription

1 Smart Home with Voice Commands Based on Android Sulistyo Widodo ELECTRICAL ENGINEERING SUPERVISOR : Dr. Sunny Arief Sudiro

2 OUTLINE Background Propblem Statement The Purpose of Research Scope of The Research Research Methods Literature Review Design Device Measuring and Testing Device Closing

3 BACKGROUND Indonesia is a top rank in the use of smart phones with an average duration of use 181 minutes per day. Smart phones are only used as a medium of entertainment such as Facebok, twitter and playing game. (BBC Indonesia) Figure. User Smart Phone in Indonesia Source ( Make a system to maximize Smart phone function that can be used to facilitate homework.

4 PROBLEM STATEMENT Problem Statement is how to make a system-based smart phones or devices that can make housework quickly and automatically. The idea is create a system using voice commands on the mobile phone with the Android OS as control mechanical and electrical terminals on the home called smart homebased Arduino Uno.

5 THE PURPOSE OF REASEARCH The purpose of this research is to maximize the function of smart phones and make a circuit of smart home system that is open the door, closed the door, window, turn on or tun off the lamp and fan automatically in home based on the Arduino Uno with voice commands. So, can make easy of housework activities automatically in a long distances.

6 SCOPE OF THE RESEARCH 1. The microcontroller used is Arduino Uno 2. Using the programming language C / C The smart home system using voice commands with smart phone based on OS Android 4. For media automatically applied to smart homes using mechanical replicas and use the Bluetooth module HC The application on a smartphone using applications that already available on the play store based on bluetooth.

7 RESEARCH METHODS 1. Study of the literature 2. Designing and Making Device 3. System Testing 4. Analysis Method

8 LITERATURE REVIEW (A) (B) (C) Figure. DC motor(a) Servo Motor (B) Stepper Motor (C) Source:

9 LITERATURE REVIEW (A) (B) (C) Figure. Full Wave Rectifer Source: (D)

10 LITERATURE REVIEW Bluetooth HC-05 (shown in the picture) is a Bluetooth module that is easy to use and uses serial communication Wireless (wireless). Bluetooth is working up to 2.8 GHz and 2.4 GHz frequency voltage required by this module approximately 3.3 volts DC. The Bluetooth module has 6 pieces of pins, namely STATE, RXD, TXD, GND, VCC and KEY. And a Bluetooth module is commonly used baud rate of 9600bps. Figure. Modul Bluetooth HC-05 Source:

11 DESIGN DEVICE Block Diagram of The Device

12 DESIGN DEVICE Figure. Flowchart work of device on the Arduino microcontroller

13 The Overall Design of The Device DESIGN DEVICE

14 DESIGN DEVICE Design Circuit to Control DC Motor Using Relay

15 DESIGN DEVICE Vcc = 5V VBB = 5V Rc = 60 Ω (relay resistance measured using a multimeter) VBE = 0.7V (Silicon) β = 110 (from data sheet BC548) The amount of current in the transistor Ic with obstacles Rc = 60Ω Ic = Vcc / Rc = Ic = (5 V) / (60 Ω) = Ic = ma = A The amount of current that passes through the base on the transistor BC548, that is: β = Ic / IB = IB = (83.33 ma) / 110 = IB = ma RB magnitude, so that the transistor can work in saturation region, that is: IB sat = ma For the calculation, IB used was 7.5 ma, this is done so that we can search for the minimum threshold RB safe to use. RB = ((5V-0,7V)) / (7.5 ma) = Ω So, the transistor can work in saturation region when used RB minimum 573,33Ω. While transistors working in saturation region when the value IB is more than or equal to ma and the transistor will work in the area cut off when value IB is smaller than ma.

16 MEASURING AND TESTING DEVICE Power Supply Figure. Measurement of Voltage and Currents In Power Supply

17 MEASURING AND TESTING DEVICE Table. Measuring Power Supply NO Correct voltage Voltage In Testing Error Rate [%] 1 12 Vdc (LM7812) 12,40 Vdc 3, Vdc (LM7805) 5,15 Vdc 3 3 3,3 Vdc(Mikrokontroller) 3,38 Vdc 2, Vdc (Mikrokontroller) 5,15 Vdc 3 Power used by the microcontroller: P12Vdc = V12Vdc x I12Vdc = P12Vdc = 12, 40 V x 0, 01 A = P12Vdc = 0,124 W = 124 mw. Power used to turn on the dc motor, 2 relays and servo motors: P5Vdc = V5Vdc x I5Vdc = P5Vdc = 5, 15 V x 0, 02 A = P5Vdc = 0,103 W = 103 mw. The total power required by the prototype smart home: PTotal = P12Vdc + P5Vdc = PTotal = 124 mw mw = 227 mw.

18 MEASURING AND TESTING DEVICE Table. Results of Test of Prototype Currently Voice Commands Voice Command Output In Prototype Smart Home Buka Pintu Stepper motor moves clockwise = mechanics open the door Tutup Pintu Stepper motor moves counter Buka Jendela Tutup Jendela Lampu Aktif clockwise = mechanics closed doors Servo motor moves 135⁰ = mechanics window open Servo motor moves 15⁰ = mechanics window is closed Relay driver circuit 1 active = lights on Figure. The output of each command on the serial monitor Lampu Mati Kipas Aktif Kipas Mati Relay driver circuit 1 off = light off Relay driver circuit 2 active = DC motors ON Relay driver circuit 2 active = DC motors OFF

19 MEASURING AND TESTING DEVICE Table. Testing Performance of Bluetooth in Outside with Buzzer as an Indicator The Distance Between the Bluetooth Master and Buzzer Conditions Slave [Meter] 1 ON 2 ON 3 ON 4 ON 5 ON 6 ON 7 ON 8 ON 9 OFF 10 OFF

20 MEASURING AND TESTING DEVICE Table. Testing Performance of Bluetooth in the House with Buzzer as an Indicator The Distance Between the Bluetooth Buzzer Conditions Master and Slave [Meter] 1 ON 2 ON 3 ON 4 ON 5 ON 6 ON 7 ON 8 OFF 9 OFF 10 OFF

21 CLOSING Conclusion 1) The maximum distance that can be reached by bluetooth to be able to communicate well is 8 meters, but when implemented in the house with various barriers such as walls, the maximum distance is 7 meters. 2) This bluetooth communication can work well when implemented at home when the wall thickness of no more than 13 cm. 3) Smart home that was created when implemented proven to maximize functionality of smart phones and can facilitate housework at a distance of no more than 7 meters, for example when the user's position in the room to open a window or turn on the lamps didn t need approach the object, but only give voice commands so that can save time. 4) The total power consumption in this prototype smart home is 227 mw.

22 THANK YOU