Electrical Engineering Department, West Pomeranian University of Technology, Szczecin, al. Piastów 17, 70-310 Szczecin, Poland.
Maritime University of Szczecin, Mechanical Engineering Department, Wały Chrobrego, 1-2 Szczecin, Poland.
Sensors (Basel). 2019 Nov 2;19(21):4771. doi: 10.3390/s19214771.
Modern ships are required to increase the energy efficiency and minimize fuel consumption. This paper presents the construction, main properties and exemplary measurement results of a novel system intended for main shaft power monitoring. The telemetry system consists of the stationary part, responsible for wireless supply energy transfer to the rotating part. Additional functions of the stationery unit include radio-based, bidirectional communication with the rotating, microcontroller-based unit, and Modbus-based communication with the graphical user interface. The non-stationary (rotating) part receives the necessary energy using the wireless transmission and performs the torque and speed measurement using strain gauge and a special setup of the wireless energy system. A novel system of flexible printed circuit board (PCB) coils is used for wireless energy transmission and increases the flexibility of the device while minimizing the necessary size, weight, and costs of the setup. The microcontroller unit used for measurements allows proper sampling of highly dynamic signals and can be used for advanced drive system diagnostics or as a typical power monitoring device. Such unit was installed on a ferry and operation was monitored for several sea trips. Main results depict characteristic power data referenced to vessel speed and specific fuel oil consumption (SFOC). Proposed system construction allows to reduce system costs and provides stable readings for long period of operation.
现代船舶需要提高能源效率并尽量减少燃料消耗。本文介绍了一种新型主轴功率监测系统的结构、主要特性和示例测量结果。遥测系统由固定部分组成，负责向旋转部分无线传输能量。固定单元的附加功能包括与旋转微控制器单元进行基于无线电的双向通信，以及与图形用户界面进行基于 Modbus 的通信。非固定（旋转）部分使用无线传输接收必要的能量，并使用应变计和特殊的无线能量系统设置进行扭矩和速度测量。新型柔性印刷电路板（PCB）线圈系统用于无线能量传输，在最小化设备所需尺寸、重量和成本的同时提高了设备的灵活性。用于测量的微控制器单元允许对高动态信号进行适当采样，可用于先进的驱动系统诊断或作为典型的功率监测设备。该单元已安装在渡轮上，并在几次海上航行中进行了运行监测。主要结果描绘了参考船舶速度和特定燃油消耗（SFOC）的特征功率数据。所提出的系统结构允许降低系统成本，并提供长期稳定的读数。
