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Journal : TELKOMNIKA (Telecommunication Computing Electronics and Control)

Colored Ball Position Tracking Method for Goalkeeper Humanoid Robot Soccer Arif Rahman; Nuryono Satya Widodo
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 11, No 1: March 2013
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v11i1.877

Abstract

The goalkeeper robot in a robot soccer game must be able to detect position of the ball and block the ball into the goal. Identifying the location of the ball using robot vision becomes very important in addition to the mechanical motion of the robot. This paper proposed method to track colored ball position for goalkeeper robot. First, image is captured with web camera and then color filtering based on HSL color model performed on each image frame in the video. After that, images from filtering process are detected its blob by labeling nearest connected components. The largest blob in image represents the ball. The next step is detection of ball position using 9-Cells coordinate. Ball position coordinate is updated in some period of time and then sends to robot controller to conduct the robot's movements appropriately. Experiment results show that system is able to detect the ball and its position in 9-Cells coordinate which can be used by goalkeeper robot soccer controller to block the ball.
Vision Based Self Localization for Humanoid Robot Soccer Nuryono Satya Widodo; Arif Rahman
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 10, No 4: December 2012
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v10i4.851

Abstract

Vision based robot soccer localization system, aiming to create a robot soccer localization system. The implementation of this idea is motivated by the need of the localization system for the robot soccer to play the ball effectively and efficiently. The expected result of this research is to develop the localization system for the robot soccer based on camera vision. Thus the developed robot will be able to play football better. It is because of the localization system that can make the robot able to behave more precisely on certain condition and location. For example, the robot should be able to find the ball in its own area or in the opponent’s. Research conducted on several major parts, consisting: image capture, processing image information and directions to the information about the location of the robot at the time. The experimental results indicate that the localization system in this research work has the ability to perform an approximation of the robot location with respect to the goal.
APLIKASI MOBILE SMS GATEWAY OVER GPRS UNTUK MENGAKSES SISTEM INFORMASI Wahyu Pujiyono; Arif Rahman; Ananta Wijaya
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 7, No 1: April 2009
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v7i1.575

Abstract

SMS via GPRS technology can be used to access data from information systems. This technology is one of regular and premium SMS extensions. The SMS over GPRS is composed by three components: the mobile application, server, router and gateway of information systems. The research objective was to build a mobile application to access information systems with the assumption that the server and the gateway router of information systems already exist. System was built using the http protocol, which has a request-response mechanism. There are two methods in the delivery of the message (request) and the receipt of the message (response) from the server, the message filtering and message parsing. Filtering is used to filter the message text /string that not known to be a string known by http, and then in message parsing process, message parses in the form of XML.