1。1 Research Background and Significance----------------------------------------------------1

    1。1。1 Research Background------------------------------------------------------------------1

    1。1。2 Research Significance -----------------------------------------------------------------1

 1。2 Research Status--------------------------------------------------------------------------------2

    1。2。1 Research Status of deck machinery’s control system------------------------------2

    1。2。2 The Developing History of the Windlass and its Application--------------------3

    1。2。3 The Developing History of the PLC and its Application--------------------------3

    1。2。4 Development Trend--------------------------------------------------------------------4

 1。3 Research Contents and Chapters Arrangement--------------------------------------------5

Chapter 2 Composition and Principle of Anchor and Mooring Winch---------------------------------------------------------------------------- 7

 2。1 Function of the Control System of Anchor and Mooring Winch --------------------- 7

    2。1。1 Classification of the Anchor and Mooring Winch-------------------------------- 7

    2。1。2 Structure and Working Principle of Anchor and Mooring Winch -------------- 7

    2。1。3 System Principle and Function of Anchor and Mooring Winch---------------- 8

2。2 Structure of the control system of Anchor and Mooring Winch------------------------ 9

2。3 Chapter Summary--------------------------------------------------- 9

Chapter 3 Control System Design of Anchor and Mooring Winch-10

3。1 System Composition--------------------------------------------------------------------------10

    3。1。1 Structure of System------------------------------------------------------------------10

    3。1。2 Control unit of PLC-------------------------------------------------------------------10

    3。1。3 Unit of State Display -----------------------------------------------------------------11

    3。1。4 Unit of Operation and Control------------------------------------------------------ 11

    3。1。5 Unit of Detection and Alarm-------------------------------------------------------- 11

3。2 System Design of Anchor and Mooring Winch-------------------------------------------12

    3。2。1 Anchor and Mooring Winch on Contactor – Relay-------------------------------12

    3。2。2 Anchor and Mooring Winch on PLC-----------------------------------------------18

3。3 Model Selection of Anchor and Mooring Winch----------------------------------------- 22

    3。3。1 Model Selection of AC Motor-------------------------------------------------------22

    3。3。2 Model Selection of Contactor ------------------------------------------------------ 23

    3。3。3 Model Selection of Others-----------------------------------------------------------23

3。4 Chapter Summary ---------------------------------------------------------------------------- 24

Chapter 4 Model Selection of Wireless Remote Control Device and Stability Analysis --------------------------------------------------------------25

4。1 Function of  Wireless Remote Control Device ------------------------------------------25

    4。1。1 Classification of Wireless Remote Control Device-------------------------------25

    4。1。2 System Principle and Function of Wireless Remote Control Device----------25

  4。2 Model Selection of Wireless Remote Control Device and Stability Analysis---------25