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Journal : International Conference on Engineering and Technology Development (ICETD)

Solving Pixel Puzzle Using Rule-Based Techniques and Best First Search Dina Stefani; Arnold Aribowo; Kie Van Ivanky Saputra; Samuel Lukas
International Conference on Engineering and Technology Development (ICETD) 2012: 1st ICETD 2012
Publisher : Bandar Lampung University (UBL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (898.086 KB)

Abstract

Pixel puzzle is a logic puzzle which consists of a blank grid with clues on the left of every row and on the top of every column. The objective is to paint blocks in each row and column so their length and sequence corresponds to the clues, and there is at least one empty square between adjacent blocks. There are many possible solutions to paint blocks in each row and column. Solving the puzzle manually gives the possibility to fill cells yield erroneously. Therefore an attempt to solve the puzzle with the aid of computer software is performed.In this paper, rule–based techniques and best-first search are utilized to solve the puzzle. According to experiments have been conducted, it can be concluded that rule-based techniques and best-first search are able to solve the Pixel Puzzle. The result also indicates that the larger size of pixel puzzle, the longer average time to solve is needed. Moreover, the average time to solve one cell of pixel puzzle depends on the size itself except for the 10 × 10 and 15 × 15 pixels. 
Minimum System Design Of Android Based PSTN Phone Deo Kiatama; Fransiscus Ati Halim; Arnold Aribowo
International Conference on Engineering and Technology Development (ICETD) 2014: 3rd ICETD 2014
Publisher : Bandar Lampung University (UBL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.113 KB)

Abstract

PSTN phone is static. However, with the development of Android based device, wireless computer network and minimum system, it is possible to make a PSTN phone mobile. To add the mobility behavior in PSTN phone, a research to develop Android based PSTN phone is needed. Android based device will act as a remote control for the PSTN phone and can be used to make and accept a call from distance.This paper elaborates the Android based PSTN phone design. To test the system performance, two parts of testing are performed. First is testing the Android based PSTN phone remote control system and second is testing the digital voice streaming system between Android device and minimum system using UDP protocol over wireless computer network. PSTN phone remote control system is tested for its functionality while digital voice streaming system is tested for its quality by giving a sinusoidal signal to the system and comparing the input signal with output signal using oscilloscope.According to the test, Android based PSTN phone prototype is able to make a connection and disconnection of Android device (as client) with microcontroller (as server), make a connection with auto server discovery system, make a call, receive a call, and use redial and hold functions with 100% success rate in certain condition. However, it is shown that the quality of voice sent from Android phone to Arduino module is poor due to the limited size of buffer in Arduino, but on the other way around the quality of voice sent from Arduino to Android phone is good.
Minimum System Design of Android Based PSTN Phone Deo Kiatama; Fransiscus Ati Halim; Arnold Aribowo
International Conference on Engineering and Technology Development (ICETD) 2014: 3rd ICETD 2014
Publisher : Bandar Lampung University (UBL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.837 KB)

Abstract

PSTN phone is static. However, with the development of Android based device, wireless computer network and minimum system, it is possible to make a PSTN phone mobile. To add the mobility behavior in PSTN phone, a research to develop Android based PSTN phone is needed. Android based device will act as a remote control for the PSTN phone and can be used to make and accept a call from distance.This paper elaborates the Android based PSTN phone design. To test the system performance, two parts of testing are performed. First is testing the Android based PSTN phone remote control system and second is testing the digital voice streaming system between Android device and minimum system using UDP protocol over wireless computer network. PSTN phone remote control system is tested for its functionality while digital voice streaming system is tested for its quality by giving a sinusoidal signal to the system and comparing the input signal with output signal using oscilloscope.According to the test, Android based PSTN phone prototype is able to make a connection and disconnection of Android device (as client) with microcontroller (as server), make a connection with auto server discovery system, make a call, receive a call, and use redial and hold functions with 100% success rate in certain condition. However, it is shown that the quality of voice sent from Android phone to Arduino module is poor due to the limited size of buffer in Arduino, but on the other way around the quality of voice sent from Arduino to Android phone is good.