Problem Statement OBJECTIVES SCOPES AND LIMITATION

1.3 Problem Statement

A ROV that named as UTeM Underwater Research Group ROV UTeRG-ROV was invented in 2012. However the previous ROV do not have auto depth control system. The ROV is loaded with thrusters which controlling upward, forward and reverse movement of the ROV. Without the auto depth control, the ROV cannot stay at current depth and it hard for the researcher to take out any data at a specified depth. Hence, an enhancement of previous ROV in term of depth control is needed. Therefore, the auto depth control for ROV using thruster system is proposed. The auto depth control of the ROV is designed to assist the ROV in maintaining the specified depth using thruster system.

1.4 OBJECTIVES

The objectives of this project are: 1. To design the auto depth control using thrusters system 2. To analyze the sensitivity of the chosen pressure sensor and validate the results obtained.

1.5 SCOPES AND LIMITATION

The scopes and limitation of this project are: 1. The project only focuses on auto depth control system using pressure depth sensor by completing the existed ROV prototype. 2. Two thruster are used to submerge the ROV. 3. The selected pitch is 45 . 4. The ROV were tested in a pool with depth 1.5 meter. 5. The main source of power supply was from 12V battery. K-Chart on Designing the ROV Vehicle Air Land Sea Underwater Surface of Water AUV ROV Pure Observation Observation with play load Work Class Seabed Working Principle Prototype Material Tether Thrusters Controller Sensor Propeller Motor Controller Pressure Sensor Figure 1.2: K-Chart CHAPTER 2 LITERATURE REVIEW This chapter discuss on the general information of the auto depth system which will be used for UTeRG-ROV. The type of motor use and the selection of propellers in which size, diameter, number of blade and blade pitch to the centre are included in this study as well as pressure sensor. The facts and information are collected from reliable source and elaborated based on the understanding of the review. The previous research information, methodologies and design are used as references and guidelines for this project.

2.1 Motor