Predictive analytics as a service for vehicle health monitoring using edge computing and AK-NN algorithm

• Main Authors: Vasavi, S., Aswarth, K., Sai Durga Pavan, T., Anu Gokhale, A.
• Format: Conference Proceeding
• Language: English
• Subjects: Artificial Neural Network (ANN); Dynamic health monitoring; Edge Computing; k-Nearest Neighbor (k-NN); Mobile application; Predictive analytics; Vehicle data
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2021.03.658

Smart logistics is a part of Industry 4.0. With the increased development of the technology in the vehicle industry, the machine learning algorithms are applied on sensor data in order to detect the failure of the components of the vehicle. Several systems for vehicle health monitoring are presented in the literature for delivery of services in real-time. The sensor values obtained from the cloud are processed with machine learning algorithms, but have problem with delay in execution and data center failure. Edge computing is introduced in recent years so that intensive operations are performed at the edge of the device than at the cloud. This paper presents edge computing based fault prediction system that will predict vehicle health using internal and external sensors in real-time. Risk details are displayed through a mobile application in the form of notifications as well as a dashboard at the terminal. Such a system reduces latency between sending and processing vehicle data. The proposed system uses ensemble of ANN and k-NN classifiers named as AK-NN so as to improve prediction performance. In the first step, ANN is trained and validated on the Chevrolet car OBD dataset. Error reported from this best trained network is used by k-NN for statistical analysis of the error distributions. Three different experiments based on ANN, k-NN and AK-NN are made and evaluated using NRMSE, COD, cross entropy loss, accuracy and ROC measures. 85% accuracy for k-NN model when k = 3, 78% accuracy using ANN and 98.7% for ensemble method are achieved. Comparative study using key performance indicators such as Mean time between failure (MTBF) and Mean time to Repair (MTTR) is also made on 84 vehicles for prediction alert over mobile phone using analytical dashboard and proved to reach availability objective.