Cooperative emergency braking warning system in vehicular networks

Abstract

Safety applications in vehicular networks have been popular research topics in recent years, such as forward collision warning, emergency braking warning and intersection collision warning systems. The basic safety message broadcast from each car transmits the position, car speed and car heading information. Neighbouring cars receiving this information can decide if there is any danger within the next second. However, the safety application message has positioning accuracy and time-critical problems. Accurate positioning of the car provides a more effective warning to the driver. Moreover, the reliable and efficient delivery of safety information needs to be improved when the penetration rate increases. Hence, this paper proposes a cooperative emergency braking warning system to solve the above problems. This is a system that integrates a camera sensor to construct the state of neighbourhood cars in order to solve the first problem. It then proposes to reduce the repeat and derivable information between the broadcast messages in order to solve the second problem. The proposed system has been implemented to provide a safer driving environment.

A time-recordable cross-layer communication protocol for the positioning of Vehicular Cyber-Physical Systems

“…step (2) There are three actions in this step. Firstly, the RSU receives the "Req" positioning frame and starts timer t replyB to record the process 285 time whilst the arrival time is written to the frame "Arrive Time" field.…”

“…Vehicular Cyber-Physical Systems (VCPS), namely systems that aim to improve vehicular active safety and infotainment, have attracted a significant amount of interest over the past few decades [1][2][3]37]. In a VCPS, each vehicle is considered as a smart object equipped with a powerful multi-sensor platform, 5 communications technologies, computation units, as well as IP-based connectivity to the Internet and to other vehicles either directly or indirectly [4,38].…”

Connected Vehicles: Technology Review, State of the Art, Challenges and Opportunities

“…Several studies have been directed to enhance and develop the EEBL application performance. For instance, authors in [83] present a comparison between two approaches carried out to evaluate the significance of electronic brake reports in EEBL systems. The first technique was an analytical equation that depended on the minimum safety gap scheme.…”

A secure message-passing framework for inter-vehicular communication using blockchain

“…To target the position accuracy and time-critical problems in the distribution of warning messages among vehicles, Tsai et al 12 proposed a cooperative emergency braking warning system that employed a camera sensor and dedicated short-range communication (DSRC) communication protocol. The state of neighboring cars was constructed along with the method to reduce message transmission.…”