Maritime Information Visualization

1. Tran Hai Dang - 006062. Ta Duc Tung - 005443. Duong Hue Linh - 005964. Pham Quang Hung - 003965. Ha Thi Tham - 011886. Nguyen Hai Ha - 00740

Supervisor: Mr. Huỳnh Anh Dũng

Students: 6fingers team

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Contents

• Introduction• Project Management Plan• Requirement Specification• Design Description• Algorithm• Testing• Demo• Q&A

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Part 1: Introduction

• The people• Background• Literature Review• Idea proposal

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The people

• Instructor: Mr. Huynh Anh Dung• Team members:

– Tran Hai Dang– Ta Duc Tung– Duong Hue Linh– Pham Quang Hung– Ha Thi Tham– Nguyen Hai Ha

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Background

• Vietnam has a large exclusive economic zone (EEZ) with more than 20,000 far shore fishing boats

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Background

• Problems– Seasonal typhoons claim over

hundred lives every year– Fishermen arrested

• Major causes– Fishermen lack of information about

the typhoons, their position…– Managers lack of information about

the situation of fishermen. There is urgent need to solve those

problems.

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Literature Review

- Coastal Station System

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Advantages Disadvantages

Easy to use Anti-interference In many urgent cases, sailor cannot

hear the message clearly, which lead to misunderstanding and damaging

Literature Review

- Viettel Coastal and Islands Base Transceiver Station (BTS) System

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Advantages Disadvantages

Can use cell phone Narrow range Cannot cover full range of

South – East Asia Sea

Literature Review

- Movimar System

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Advantages Disadvantages

High technology Guarantees a high quality of

communicating and rescuing

High capital investment Number of monitored vessel

is only 2850 Technology dependency

(depend on France)

• Abstract & Idea– Build a system for informing fishers of

weather forecast, storm notification and visualizing this information.

– Vessel monitoring, search and rescue

Develop an additional method of communicating on HF band. System will transfer data from coastal station to vessels and vice-versa

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Idea proposal

Idea ProposalMIV

• Pros & Cons

Part 2: Project Management Plan

• Proposed System• Development Environment• Process• Project Organization• Project Planning

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HF

HF

HF

HFText Data

Text Data

Text Data

Text Data

Database

Database

HFText Data

Visualization

Visualization

Visualization

Visualization

Coastal Station

Coastal Station

Sync

hron

ize

Visualization

Viewer

Proposed System

• Hardware– Transceiver : VX3R, KENWOOD-TS2000– Audio connection line– GPS device

Development EnvironmentMIV

Development Environment

• Visual Studio 2010• .NET Framework 4.0• SQL Server 2008 Express• Eclipse• Java / Java Swing Framework• Google Earth API• OS: Windows 7

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Process

Iterative & incremental model

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Project Team Organization

DangTH (PM)DangTH (PM)DangTH (PM)DangTH (PM)

HaNH(DV,

Tester)

ThamHT(Designer,

DV)

HungPQ(BA, DV)

TungTD(CM,DV)

LinhDH(Test Leader.

Tester)

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Planning

• Risk Management– Hardware Availability– Testing – Resource Experience– Project Management Skill– User Involvement

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Part 3: Requirement Specification

• Users• Use case Diagram• Non-functional requirement

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UsersUser Application Description

Central operator Viewer User of Viewer application, responsible for- Monitoring vessel positions, voyages- Create weather messages, storm messages

Operator Coastal Station

User of Coastal Station application, responsible for- Monitoring messages to be broadcasted to vessels, received from vessels- Broadcasting messages to vessels

Fisher On-sea Terminal

User of On-sea Terminal application, responsible for monitoring their own vessel position on map, being alerted about storm, weather information

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On-sea Terminal – Fisher Use casesMIV

On-sea Terminal – Storm visualization Screen

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Coastal Station – Operator Use casesMIV

Viewer – Central Operator Use casesMIV

Viewer – Vessel Monitoring ScreenMIV

• Language: Vietnamese• Usability: easy to use, especially for fishers• HF band requires error detection & correction,

package losing mechanism

Non-functional RequirementsMIV

Part 4: Design Description

• System Context Overview• Architectural Design• Detailed Design• Database Design• Message Passing Schema

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System Context OverviewMIV

Design patterns

• Client Server Architecture• Layer Architecture

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Database Server - ArchitectureMIV

Viewer - ArchitectureMIV

Coastal Station - ArchitectureMIV

On-sea Terminal - ArchitectureMIV

Common Struct

Presentation Layer

Business Layer

Data Access Layer

Common Layer

Exception Management

GUI

ControllerData correctionAudio Soft-

Modem

Tranceiver connection

<<uses>>

<<uses>> <<uses>>

Utility

«uses»

Detailed Design

• Refer to documentation (capstone project final report)

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Database DesignMIV

Message Passing Schema

• Message Dividing & Wrapping

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• Transfer Steps:

Message Passing Schema (cont.)

Package Description

STARTING packet Notify receiver of starting transferring session

CONTENT packet Transfer content data

ENDING packet Notify receiver of stopping transferring session

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• STARTING packet

• CONTENT packet

• ENDING packet

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Message Passing Schema (cont.) Packet structure

Message Passing Schema (cont.)

• Storm message structure *

Storm eye info i

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* Refer to documentation (capstone project final report) to see structure of other kinds of messages

Part 5: Algorithm

• Error Detection & Correction• Soft Sound Modem

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Error Detection & CorrectionMIV

Overview of error detection & correction

Error Detection & Correction

• 3 flags rather than 1 flag in AX.25• Different check sum

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Flag Packet ID Info FCS Flag Flag

01111101 16 bits N * 8 bits 16 bits 01111110 01111111

Protocol for detecting loss byte

Error Detection & CorrectionMIV

Current State Input = 0 Input = 1

00 00 10

01 00 10

10 01 11

11 01 11

Current State Input = 0 Input = 1

00 00 11

01 11 00

10 10 01

11 01 10

Next state table Output pair table

Next state diagram

Error Detection & CorrectionMIV

Trellis diagram

Error Detection & CorrectionMIV

Naïve approach for Viterbi decoding

Software Sound ModemMIV

Sound Modem

… 0 1 1 0 0 1 1 1

Sound Modem

… 0 1 1 0 0 1 1 1

Part 6: Testing – Test reportMIV

Test Execution Summary

Pass Fail Untested Accepted N/A Number of Test cases

0 0 0 0 0 0

Onsea Terminal 54 0 0 0 0 54

Coastal Station system 62 0 0 0 0 62

Viewer 75 0 1 0 0 75

CombineV-CS-OT 10 10 0 0 0 10

External Interface 0 0 0 0 0 0

Performance 0 0 0 0 0 0

Data migration 0 0 0 0 0 0

Test coverage            

Test coverage           99.5%

Test successful coverage           99.5%

Part 7: DemoMIV

Q&A

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