Control network connecting mode of drag-suction dredger power positioning control system

A trailing suction dredger, dynamic positioning technology, applied in the direction of total factory control, total factory control, electrical program control, etc., can solve the problem of increased cost of construction and installation, increased length and strength of anchor chains, and weakened grip of anchor chains, etc. problems, to avoid communication inquiries, improve reliability, and avoid redundancy

Inactive Publication Date: 2012-05-16
ZHENJIANG YIHUA SYST INTEGRATION
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Problems solved by technology

As the water depth increases, the gripping force of the anchor chain will weaken. At the same time, the length and strength of the anchor chain will increase, and the wei

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  • Control network connecting mode of drag-suction dredger power positioning control system
  • Control network connecting mode of drag-suction dredger power positioning control system

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Embodiment Construction

[0008] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0009] like figure 1 As shown, the present invention employs four types of networks.

[0010] Network (1) is responsible for collecting the information of gyrocompass, DGPS1, DGPS2, wind direction anemometer, motion unit, speed log and depth sounder. The network adopts industrial grade multi-serial port communication card, and the multi-serial port card is inserted into the PCI slot of the control computer , Each sensor is connected to each serial port of the multi-serial port card with shielded twisted pair, the communication interface is RS-422, and the communication protocol is NEMA 0183. Adopt MOXA CP118EL multi-serial port card, the multi-serial port card can connect 8 RS-232 / RS-422 / RS-485 signals, each serial port can support up to 921.6Kbps communication rate, 128-byte FIFO and on-chip Built-in H / W, S / W flow control function, the communication mode and commu...

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Abstract

The invention discloses a control network connecting mode of a drag-suction dredger power positioning control system. The system comprises a control computer, a switch, a bow programmable logic controller (PLC), a power positioning PLC, a dredging PLC, a multi-serial-port communication card, a program field bus (PROFIBUS) communication card, an electric gyrocompass, a differential global positioning system (DGPS), an aerovane, a motion unit, a log, a sounding instrument and a dredging track display system. The power positioning PLC is connected with the bow PLC and the dredging PLC through the network switch, and each PLC has a unique internet protocol (IP) address; the electric gyrocompass, the DGPS, the aerovane, the motion unit, the log and the sounding instrument are connected with the control computer through the multi-serial-port communication card; the PLCs are connected with the control computer through the PROFIBUS communication card; the control computer is connected with the dredging track display system through the network switch; and the PLCs and the control computer realize one-to-one communication by adopting data processing (DP) protocols, so that the control requirement of the dredger power positioning control system is met.

Description

technical field [0001] The invention relates to a ship control network connection method, in particular to a trailing suction dredger dynamic positioning control system control network connection method. Background technique [0002] In the case of general water depth, anchor chain mooring is mainly used for mooring of ships. As the water depth increases, the gripping force of the anchor chain will weaken. At the same time, the length and strength of the anchor chain will increase, and then the weight will increase sharply. Therefore, the chain laying operation will become complicated and difficult, and the cost and installation cost will also be greatly increased. With the increase of water depth, factors such as natural wind, waves, currents, etc., the accurate positioning of the ship plays a vital role in the accuracy, cost, flexibility and maneuverability of the deep water operation of the ship. Since the application of common mooring methods in deep water is greatly li...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 袁伟张洪涛李军俞孟蕻李阿福
Owner ZHENJIANG YIHUA SYST INTEGRATION
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