Normal view MARC view ISBD view

Design and development of electronics and electricity laboratory room monitoring system with automated locking system / by Rhodora Jasmine R. Crucillo and Christian I. Erni.

By:

Crucillo, Rhodora Jasmine R [author]

Contributor(s):

Material type: Text

TextLanguage: English Publication details: Indang, Cavite: Cavite State University- Main Campus, 2004.Description: xiii, 97 pages: illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

620.0042 C88 2004

Online resources:

Click here to view the abstract and table of contents

Production credits:

College of Engineering, and Information Technology (CEIT)

Abstract: CRUCILLO, RHODORA JASMINE R., and ERNI, CHRISTIAN L Design and Development of Electronics and Electricity Laboratory Room Monitoring System with Automated Locking System. Undergraduate Design Project Bachelor of Science in Electronics and Communications Engineering. Cavite State University, Indang, Cavite. October 2003. Adviser: Engr. Mary-Anne D. Costa. The study aimed to design and develop an Electronics and Electricity Laboratory Room Monitoring System with Automated Locking System. The prime objective of the system was to provide a motion-sensing device that will turn on/off the room's lights and cameras, and locks the door automatically if there are no students or professor within the electronics and electricity laboratory room. The system uses an ultrasonic motion sensor as its sensing device that triggers the lights, cameras, and door lock to activate. The transmitter side of the sensor generates and sends out a 40—KHz frequency that when intercepted by a moving body bounces back the frequency through the receiver side, which stimulates the sensor to operate. The signal covers a 7 feet by 15 feet teardrop-shaped area. The project was composed of two (2) main circuitry: the transmitter and the receiver. The transmitter was basically a stable oscillator formed out of a 555 Timer IC. This is responsible for the transmission of the 40—KHz frequency that drives the ultrasonic transducer. The receiver side is composed of several function blocks, the Envelop Amplifier, Filter, Doppler Frequency Amplifier, and Motion Detector. This second circuit utilizes an ultrasonic receiver (UTR). This transducer detects two different frequencies, the 40KHz from the ultrasonic transmitter and the shifted frequency resulting from the presence of a moving object in the transmitter's path.

Average rating: 0.0 (0 votes)

Holdings ( 1 )
Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	620.0042 C88 2004 (Browse shelf(Opens below))		Link to resource	Room use only	DP-110		00001187

Design Project (BS Electronics and Communications Engineering) Cavite State University.

Includes bibliographical references.

College of Engineering, and Information Technology (CEIT)

CRUCILLO, RHODORA JASMINE R., and ERNI, CHRISTIAN L Design and Development of Electronics and Electricity Laboratory Room Monitoring System with Automated Locking System. Undergraduate Design Project Bachelor of Science in Electronics and Communications Engineering. Cavite State University, Indang, Cavite. October 2003. Adviser: Engr. Mary-Anne D. Costa.
The study aimed to design and develop an Electronics and Electricity Laboratory Room Monitoring System with Automated Locking System. The prime objective of the system was to provide a motion-sensing device that will turn on/off the room's lights and cameras, and locks the door automatically if there are no students or professor within the electronics and electricity laboratory room. The system uses an ultrasonic motion sensor as its sensing device that triggers the lights, cameras, and door lock to activate. The transmitter side of the sensor generates and sends out a 40—KHz frequency that when intercepted by a moving body bounces back the frequency through the receiver side, which stimulates the sensor to operate. The signal covers a 7 feet by 15 feet teardrop-shaped area. The project was composed of two (2) main circuitry: the transmitter and the receiver. The transmitter was basically a stable oscillator formed out of a 555 Timer IC. This is responsible for the transmission of the 40—KHz frequency that drives the ultrasonic transducer. The receiver side is composed of several function blocks, the Envelop Amplifier, Filter, Doppler Frequency Amplifier, and Motion Detector. This second circuit utilizes an ultrasonic receiver (UTR). This transducer detects two different frequencies, the 40KHz from the ultrasonic transmitter and the shifted frequency resulting from the presence of a moving object in the transmitter's path.

04/05/2004 DP-110 Submitted to the University Library