Abstract
The data validity of safe driving in the Internet of Vehicles (IoV) is the basis of improving the safety of vehicles. Different from a traditional information systems, the data anomaly analysis of vehicle safety driving faces the diversity of data anomaly and the randomness and subjectivity of the driver’s driving behavior. How to combine the characteristics of the IOV data with the driving style analysis to provide effective real-time anomaly data detection has become an important issue in the IOV applications. This paper aims at the critical safety data analysis, considering the large computing cost generated by the real-time anomaly detection of all data in the data package. We preprocess it through the traffic cellular automata model which is built to achieve the ideal abnormal detection effect with limited computing resources. On the basis of this model, the Anomaly Detection based on Driving style (ADD) algorithm is proposed to realize real-time and online detection of anomaly data related to safe driving. Firstly, this paper designs the driving coefficient and proposes a driving style quantization model to represent the driving style of the driver. Then, based on driving style quantization model and vehicle driving state information, a data anomaly detection algorithm is developed by using Gaussian mixture model (GMM). Finally, combining with the application scenarios of multi-vehicle collaboration in the Internet of Vehicles, this paper uses real data sets and simulation data sets to analyze the effectiveness of the proposed ADD algorithm.
Highlights
The Internet of Vehicles (IOV), a new Ad Hoc Network composed of the basic communication units of mobile vehicles and their surroundings, with the ability of perception, computing, storage and wireless communication running on the road, is an effective measure to improve safe driving.It achieves the communication between vehicle and vehicle, vehicle and road, as well as vehicle and Internet, which is a typical application of Internet of Things (IoT) technology in the field of transportation systems [1]
Data anomaly detection results are shown in Tables 3 and 4, where Table 3 is the result of test set 1 (NGSIM data set) and Table 4 is the result of test set 2 (SUMO simulation data set)
Driving Style. pre: Precision; rec: Recall; f1: F1 score. It can be seen from the table that the HTM algorithm only performs anomaly detection on one-dimensional speed data, and its Precision is generally high, but Recall is very low because the HTM algorithm can detect step anomalies well and has low false positive (Fp )
Summary
The Internet of Vehicles (IOV), a new Ad Hoc Network composed of the basic communication units of mobile vehicles and their surroundings, with the ability of perception, computing, storage and wireless communication running on the road, is an effective measure to improve safe driving. It achieves the communication between vehicle and vehicle, vehicle and road, as well as vehicle and Internet, which is a typical application of Internet of Things (IoT) technology in the field of transportation systems [1]. How to guarantee the validity of data in the aspect of safety driving is one of the challenges facing the IOV applications
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