Topic
Collision avoidance system
About: Collision avoidance system is a research topic. Over the lifetime, 1788 publications have been published within this topic receiving 23667 citations.
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27 May 2014
TL;DR: This study discusses the use of received signal strength (RSS) of beacons from a vehicular ad hoc network (VANET) as a way to detect dangerous approaches among autonomous vehicles and extends this study to flying ad hoc networks (FANETs) as an way to provide obstacle avoidance in UAVs.
Abstract: Autonomous vehicles are important to execute missions without the need to put at risk people's life. To achieve this goal, it is essential that these vehicles are endowed of a collision avoidance system. In this study we discuss the use of received signal strength (RSS) of beacons from a vehicular ad hoc network (VANET) as a way to detect dangerous approaches among autonomous vehicles. We extend this study to flying ad hoc networks (FANETs) as a way to provide obstacle avoidance in UAVs. Nowadays autonomous vehicles has the need to be connected, and consequently has wireless network devices forming vehicular networks like VANETs and flying ad hoc network as FANETs. It favors the use of signal strength of beacons as a way to detect dangerous approaches among autonomous vehicles. Initially we presented a study of signal strength variation in relation to the distance and further we investigated how speed influences the received signal strength. Finally we evaluate the results of applying the propagation path loss formula in obtained RSS values to estimate the distance.
8 citations
28 Jan 1988
TL;DR: In this paper, the authors present a voyage management system which takes navigational data from such navigation aids as are fitted on the vessel, collision avoidance data from the ship's radars, and meteorological data from shore stations via a satellite link.
Abstract: The paper concerns work on the development of a voyage management system which takes navigational data from such navigation aids as are fitted on the vessel, collision avoidance data from the ship's radars, and meteorological data from shore stations via a satellite link. After appropriate filtering, this data is used as input to a multivariable optimal controller which will maintain the vessel on the correct track between ports, with due consideration to safety, efficiency and economy of operation. The navigation and guidance system has been tested afloat, whilst simulation studies have demonstrated that the automatic collision avoidance and weather routeing systems can be incorporated in to the overall voyage management system. The next step is to develop a complete prototype system and undertake extensive trials in coastal and oceanic waters.
8 citations
01 Nov 2011
TL;DR: This study proposes the verification process of LDWS (Lane Departure Warning System) using a driving simulator and it is expected that the new test method can be used for other ADAS system test such as LCA(Lane Change Assist System), CAS(Collision Avoidance System), and EDS(Emergency Driving Support).
Abstract: In these days, vehicle manufacturers and system suppliers are well advanced in their driver assistance system products. Especially, in the development process, the reliability test is essential for the guarantee of driver’s safety and convenience. Many ADAS suppliers should do their best to handle a lot of test cases in their test development process. However, it is difficult to make the same test condition and environment in the real driving test. The driving simulator can be used for the alternative and cost-effective test method. In this study, a driving simulator with a 6-DOF motion platform is developed and we propose the verification process of LDWS(Lane Departure Warning System) using a driving simulator. It is expected that the new test method can be used for other ADAS system test such as LCA(Lane Change Assist System), CAS(Collision Avoidance System), and EDS(Emergency Driving Support).
8 citations
TL;DR: Both one-dimensional and two-dimensional solutions can be applied to the collision avoidance via steering assistance, automatic braking, and warning of collision through a novel control approach for vehicle collision avoidance of urban vehicles.
Abstract: This paper proposes a novel control approach for vehicle collision avoidance of urban vehicles. For safe driving in urban environments, this paper presents both one-dimensional and two-dimensional solutions, which can be applied to the collision avoidance via steering assistance, automatic braking, and warning of collision. Strategies are verified under the software CarSim, and the experimental evaluations are carried out under the combination of CarSim with a hardware-in-the-loop platform. The results show the feasibility and effectiveness of the proposed algorithm on vehicle collision avoidance.
8 citations
Patent•
12 Nov 1970
TL;DR: A collision warning and collision avoidance radar navigation system employs the tau collision warning criterion to derive an improved presentation on a radar plan position or other cathode ray indicator as discussed by the authors, and an intruding target is labelled dangerous if the ratio of intruder closing range to his range rate is seen to be less than a predetermined value by the observation of the relative position of a synthesized bearing marker generated on the display for each target echo.
Abstract: A collision warning and collision avoidance radar navigation system employs the tau collision warning criterion to derive an improved presentation on a radar plan position or other cathode ray indicator. An intruding target is labelled dangerous if the ratio of intruder closing range to his range rate is seen to be less than a predetermined value by the observation of the relative position of a synthesized bearing marker generated on the display for each target echo.
8 citations