Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie

The HC-SR04 was used as a basis for the study of parking sensors since they are both ultrasound sensor that applies the use of ultrasound to detect obstacles. The schematics of the HC-SR04 was studied and based on previous research the schematics were reversed, drawn and modified or added some form...

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Main Author:	Jasnie, Nizammudin
Format:	Thesis
Language:	English
Published:	2019
Subjects:	Materials of engineering and construction
Online Access:	https://ir.uitm.edu.my/id/eprint/102966/1/102966.pdf
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id	my-uitm-ir.102966
record_format	uketd_dc
spelling	my-uitm-ir.1029662024-10-03T03:41:26Z Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie 2019 Jasnie, Nizammudin Materials of engineering and construction Detectors. Sensors. Sensor networks The HC-SR04 was used as a basis for the study of parking sensors since they are both ultrasound sensor that applies the use of ultrasound to detect obstacles. The schematics of the HC-SR04 was studied and based on previous research the schematics were reversed, drawn and modified or added some form of small improvements to tackle the problems of false echoes that cause the sensor to detect obstacles which does is not desired or 0 returns where the sensor is unable to receive the reflected waves of its transmission when faced with an obstacle made up of soft material particularly that absorbs ultrasound waves. A new circuit was built based on the HC-SR04 schematics with significant alterations and the coding of the new circuit is slightly altered to obtain better signal results compared to the HC-SR04. The findings revealed that the circuit revealed some changes to the experimental set up for the alarm problem. The designed circuit could transmit ultrasound signals properly however its receiver configuration could not properly receive the desired reflected ultrasound signal. The problems with the receiver could be attributed to its configuration, temperature of surroundings and other noises inaudible to the human car. 2019 Thesis https://ir.uitm.edu.my/id/eprint/102966/ https://ir.uitm.edu.my/id/eprint/102966/1/102966.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Materials of engineering and construction Materials of engineering and construction
spellingShingle	Materials of engineering and construction Materials of engineering and construction Jasnie, Nizammudin Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie
description	The HC-SR04 was used as a basis for the study of parking sensors since they are both ultrasound sensor that applies the use of ultrasound to detect obstacles. The schematics of the HC-SR04 was studied and based on previous research the schematics were reversed, drawn and modified or added some form of small improvements to tackle the problems of false echoes that cause the sensor to detect obstacles which does is not desired or 0 returns where the sensor is unable to receive the reflected waves of its transmission when faced with an obstacle made up of soft material particularly that absorbs ultrasound waves. A new circuit was built based on the HC-SR04 schematics with significant alterations and the coding of the new circuit is slightly altered to obtain better signal results compared to the HC-SR04. The findings revealed that the circuit revealed some changes to the experimental set up for the alarm problem. The designed circuit could transmit ultrasound signals properly however its receiver configuration could not properly receive the desired reflected ultrasound signal. The problems with the receiver could be attributed to its configuration, temperature of surroundings and other noises inaudible to the human car.
format	Thesis
qualification_level	Bachelor degree
author	Jasnie, Nizammudin
author_facet	Jasnie, Nizammudin
author_sort	Jasnie, Nizammudin
title	Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie
title_short	Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie
title_full	Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie
title_fullStr	Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie
title_full_unstemmed	Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie
title_sort	investigation on false alarm for ultrasonic sensors / nizammudin jasnie
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2019
url	https://ir.uitm.edu.my/id/eprint/102966/1/102966.pdf
_version_	1818588067259219968

Investigation on false alarm for ultrasonic sensors / Nizammudin Jasnie

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