RFID Bingo ball machine design and implement

• Main Authors: Chiang Sun, 孫強
• Other Authors: Wen-Yuan Chen
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/44w753

碩士 === 國立勤益科技大學 === 電子工程系 === 106 === Bingo ball systems must guarantee the unpredictability of the Bingo Balls that are being drawn. Advances in technology have allowed for the use of miniaturized electronic components, which are now found in many kinds of automatic Bingo Ball drawing machines replacing traditional manual Bingo Ball machines. Automatic Bingo Ball machines use many complex electronic components including MCU, Motor Drivers, Stepping Motors, etc. These elaborate components are causing higher production cost and have been found not reliable. They have a high failure rate and require constant maintenance. These are the main design issues of current automatic Bingo Ball machines. The premise of this study is to build an Automatic Bingo Ball machine that will randomly draw numbers, with a lower failure rate and at a lower production cost than the current systems on the market. Since Bingo Balls need to float in the Bingo machine, a blower component is required to keep the Bingo Balls floating. As the Bingo Balls float in the Bingo machine a mechanism was needed to randomly guide the Bingo Balls as they reached a predetermined location. Once the Bingo Balls reached the predetermined location a system was needed to read the numbers on the balls. To solve this problem an RFID system was chosen to be the best solution. The placement of RFID module in a specific position on the machine was vital for the system to properly read the RFID tag numbers after the Bingo Balls reached the predetermined location. Next, the RFID system was used to trigger the Bingo Balls back to the bucket. This new machine was designed without the need of a stepping motor allowing for a more economical design. Proven by this experiment was that Bingo Balls could be floated and were randomly guided to a predetermined location. Then the Bingo Balls numbers could be read correctly as they are redirected back to the bucket to complete the machines operating cycle. This study has proved that this automatic Bingo Ball machine is a fully functional valid design and would be cost effective to put into production.