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