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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, a new threat detection criterion is described which provides a better match to the requirements than the well-known modified tau criterion for a civil air transport collision avoidance system.
Abstract: A new threat detection criterion is described which provides a better match to the requirements than the well-known modified tau criterion for a civil air transport collision avoidance system. Experimental evidence is given to show that it also reduces the number of undesirable alerts.
16 citations
TL;DR: The study shows the feasibility of implementing 802.15.4 standard in wireless sensor network communication to act as a time-critical vehicle warning system that can be used for safety application.
Abstract: This paper presents research results regarding a vehicle collision avoidance system that uses a wireless sensor platform and communication based on 802.15.4 standard. The system is comprised of two components: monitoring stationary nodes mounted on the road and mobile nodes installed in vehicles. Signal strength and link quality indicators are evaluated to assist in the sequence identification of vehicles as they approach each other at an intersection. The study shows the feasibility of implementing 802.15.4 standard in wireless sensor network communication to act as a time-critical vehicle warning system that can be used for safety application.
16 citations
20 Nov 2014
TL;DR: A collision avoidance system based on smart video surveillance and car-to-infrastructure communication using a distributed system of monocular cameras to determine the position of both vehicles and pedestrians in realtime and shows that automatic braking systems would lead to drastic performance improvements due to a significant reduction of reaction times.
Abstract: Hundreds of thousands of pedestrians are involved in severe traffic accidents every year world-wide. Reasons for these accidents include complex and highly dynamic traffic situations where views are obstructed or unexpected movement occurs. Driver assistance systems are a valid option for increasing pedestrian safety by enhancing the awareness of complex traffic situations and identifying potential dangers. In this work, the authors present a collision avoidance system based on smart video surveillance and car-to-infrastructure communication. They use a distributed system of monocular cameras to determine the position of both vehicles and pedestrians in real time. In addition, the authors utilize standard car-2-x communication technology (ETSI ITS G5) to provide all position detections to the vehicles, thus enabling complex use cases such as warning cascades to drivers in case of oncoming dangers. A detailed evaluation of the proposed system and collision warning use case demonstrates the suitability as assistance system for human drivers. The authors also show that automatic braking systems would lead to drastic performance improvements due to a significant reduction of reaction times.
16 citations
Patent•
15 May 2009TL;DR: In this article, a system and method for providing mechanical time dilation by pre-braking a vehicle in the event there is a collision threat so as to reduce or eliminate the need for full automatic braking if the collision becomes imminent is presented.
Abstract: A system and method for providing mechanical time dilation by pre-braking a vehicle in the event there is a collision threat so as to reduce or eliminate the need for full automatic braking if the collision becomes imminent. The system calculates a time dilation deceleration to either maintain a time to collision at a previous value before the calculation or at a predetermined value. The system also estimates a projected closing speed of the vehicle to the object at a distance that would require full automatic braking to prevent a collision. The system then determines whether the time dilation deceleration is greater than a decelerating threshold and, if so, provides automatic vehicle braking at the threshold until the vehicle comes to a full stop. If the time dilation deceleration is not greater than the threshold, then the system provides automatic braking to decelerate the vehicle at the time dilation deceleration.
16 citations
Patent•
23 Jun 2014
TL;DR: In this article, a collision avoidance method, controller, and system for a scissor lift is described, which includes at least one of a basket proximity sensor sub-system that has proximity sensor elements disposed on the passenger basket.
Abstract: Disclosed is a collision avoidance method, controller, and system for a scissor lift. The scissor lift includes a passenger basket, a scissor extension mechanism, and a base with wheels. The collision avoidance system includes at least one of a basket proximity sensor sub-system that has proximity sensor elements disposed on the passenger basket. The collision avoidance system also includes a basket contact sensor sub-system that has impact sensor elements disposed within padded bumpers coupled to the passenger basket and a through-beam sensor sub-system mounted to the scissor extension mechanism. Still further, the collision avoidance system includes a wheel position transducer that is coupled to at least one of the wheels of the base.
16 citations