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Design a controller to control fluorescent lighting and other electrical equipment in a classroom using programmable logic controllers/Ang Shor Lin Sherine

Design a controller to control fluorescent lighting and other electrical equipment in a classroom using programmable logic controllers_Ang Shor Lin Sherine_E3_2006_NI
Pada masa kini, pengawal Logik Program (PLC) digunakan secara meluas dalam pelbagai aplikasi industri. Dalam projek ini, PLC digunakan untuk mengawal nyala padam dan keterangan pada lampu pendaflor serta peralatan elektrik yang lain dalam sebuah bilik. Masukan kepada PLC termsuklah satu pengesan keterangan cahaya, satu pengesan keadaan projektor dan dua suis yang digunakan untuk menentukan keadaan kecahayaan yang diperlukan oleh pengguna bilik. Projek ini menawarkan pengurusan tenaga yang effisien dengan mengelakkan pembaziran tenaga yang disebabkan kecuaian pengguna. Pengawalan keterangan pada lampu pendaflor bukan sahaja memberikan penjimatan tenaga tetapi juga boleh memperpanjangkan hayat penggunaannya dan memastikan keterangan yang sesuai kepada penguna-pengunanya. Sebuah model bilik kecil telah dipertimbangkan dalam projek ini untuk pengawalan lampu. Pengesan pergerakan pasif infrared telah digunakan untuk mengesan kehadiran orang dalam bilik manakala suis biasa juga dimasukkan dalam projek untuk dioperasi apabila pengesan tidak berfungsi. Selain daripada itu, pengesan keterangan lampu juga diimplimentasikan dengan menggunakan “Light Dependent Resistor” (LDR) untuk mendapatkan tahap luminasi dalam bilik.. Pengesan projektor juga diimplimentasi dengan LDR untuk memberikan kawalan lampu yang sesuai. Keluaran daripada pengesan-pengesan and suis-suis ini akan disambungkan kepada masukan pada PLC and kawalan lampu pendaflor yang bersesuaian akan dihantarkan kepada lampu menerusi ballast and litar kawalan. Untuk mengawal keterangan pada lampu pendaflor, ballast elektronik yang biasa perlu digantikan dengan ballast lampu pendaflor khas. Ballast ini melibatkan teknologi baru dan langkah rekabentuk yang agak compleks dan melibatkan ilmu yang mendalam merekabentuk ballast. Walaupun begitu, dengan menggunakan perisian pereka ballast (BDA), langkah merekabentuk dapat dipermudahkan. Dalam projek ini, ballast lampu pendaflor direlisasikan dengan menggunakan dimming ballast IC IR21592 daripada International Rectifier. Ballast ini direkabentuk untuk lampu pendaflor T8 36W daripada Voltan Masukan 240Vac. Menerusi projek ini kawalan lampu pendaflor dan pengurusan tenaga yang bersesuaian telah dicapai dengan perisian luar dan dalam yang minimum. ______________________________________________________________________________________ Programmable Logic Controllers (PLC) is widely used in almost any industrial applications in our modern world. In this project, the PLC is used to control dimming and ON/OFF control of fluorescent lights as well as other electrical equipments in a typical classroom. Sensors and switches are used as inputs to the PLC to determine the current condition is the classroom. This project offers great energy management control avoiding energy wastage by human carelessness as well as unnecessary over energy usage. Dimming control of fluorescent lights would not only allow energy saving but would also pro-long the life span of the fluorescent lights as well as ensuring a sufficient and comfortable level of light intensity in the classroom for the students. A small classroom model is considered in this project for fluorescent lights control. A Passive Infrared Remote (PIR) Motion Sensor is used as an input sensor to detect the presence or absence of people in the classroom; manual switches are also included in this project for special cases where the motion sensor malfunctions. Apart from that, light intensity sensors are also implemented using light dependent resistors (LDR) to obtain the luminance level of the environment as well as allowing dimming control of the fluorescent lights in the classroom. Besides that, a light sensor is also implemented to detect the projector current status to allow proper lighting control. All these input sensors and switches will serve as input signals to the PLC making proper lighting control possible. Proper lighting controls will be sent through the PLC I/O ports to the hardware devices. For dimming control of fluorescent lamps, the normal ballast must be replaced with dimming ballast. Although dimming ballasts involves rather new technology, tedious and complex design procedures as well as in depth knowledge in ballast design, by using the Ballast Designer software (BDA) its steps are significantly reduced and simplified. The ballast designed in this project is done using the dimming ballast IC IR21592 from International Rectifier. This ballast is designed to suite a single T8 36W fluorescent lamp from a 240Vac input voltage source. This project shows how proper fluorescent lighting control and energy management in a classroom can be derived through a proper interface with minimum software and hardware connections.
Contributor(s):
Ang Shor Lin Sherine - Author
Primary Item Type:
Final Year Project
Language:
English
Subject Keywords:
fluorescent lights; electrical; sensors
First presented to the public:
5/1/2006
Original Publication Date:
1/23/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 114
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-01-23 15:51:16.068
Submitter:
Nor Hayati Ismail

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Design a controller to control fluorescent lighting and other electrical equipment in a classroom using programmable logic controllers/Ang Shor Lin Sherine1 2019-01-23 15:51:16.068