Abstract
Abstract—A design of wireless sensor networks for mechanical condition monitoring system (WSN-MCM) is presented in this paper. The main purpose of this work is to develop a WSN system for mechanical condition monitoring as the existing mature wireless sensor network nodes are not suitable for the long-time monitoring of mechanical equipment due to their short working life and low acquisition accuracy. In order to realize the function of long-term working of the sensor node, we designed an energy harvesting board of the node to harvest the energy and transferred energy with high efficiency . Meanwhile, the node has the function of high-accuracy acquisition of analog signals and can access of various low-frequency and high-frequency sensors. The experiment and stimulated results demonstrate that the wireless sensor network system designed is suitable for mechanical condition monitoring.
Highlights
Safety operation of mechanical equipment is of great significance to modern industrial production
We focus on the hardware and software design of the wireless sensor network (WSN) system and the long-term working ability of sensor nodes
We designed and developed a WSN system for mechanical condition monitoring with energy harvesting
Summary
Safety operation of mechanical equipment is of great significance to modern industrial production. The mechanical condition monitoring (MCM) method was proposed to maintain the health of mechanical equipment. Wired monitoring technology has come of age till now. Wired monitoring technology has come of age till It has been widely used in complicated and key mechanical equipment such as large rotating machinery, harbor machinery and aeronautical facilities, etc. There are many problems as the wired method is adopted to monitor large mechanical equipment, including complex wiring, high cost installation and difficulty in sensor layout [1, 2]. The maintenance cost of a wired monitoring system is high as the wired cable is easy to age. WSN-MCM is a solution to these problems. Many commercial sensor network nodes such as MICA series and Telos nodes cannot realize high-precision data acquisition and do not have long-term working capability.
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