Indian Journal of Science and Technology

Abstract

Objectives: Marine elevators require the mechanism of safety management due to the difficulty of their maintenance in voyage. It is necessary to monitor the status of elevators using sensors and to provide the maintenance information locally and remotely. Methods/Statistical Analysis: We designed and implemented a safety elevator monitoring system based on the NMEA 2000 network, which implements maintenance prediction in the gateway using big data on the server. Findings: We conducted supervised learning using labeled data, which are results of event messages from In-network processing module of logging gateway. The accuracy of load and platform tilt based slope prediction model is 0.99 or above, but the accuracy of roll and pitch based slope prediction model is below 0.94. Therefore, it cannot be adapted to the logging gateway prediction model. Features for prediction models have a very important role in accuracy of results during experimenting and we can use highly accurate prediction models in logging gateway to analyze the sensor data. Improvements/Applications: In the decision accuracy of operating condition, 0.95 or above accuracy is obtained using an operating time feature having the ±1 second margin. But for more high accuracy, we need experts’ analysis to modify the prediction model. This system can automate the decision of elevator problems using sensor monitoring and diagnosis prediction model.
Keywords: Diagnosis Prediction, Elevator Safety Maintenance, Logging Gateway, Marine Elevator, Sensor Monitoring