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.

Use of the crash prevention boundary methodology to describe the performance of adaptive cruise control systems

Abstract: This paper presents a preliminary exploration of approaches to using experimental data for estimating the safety impact of advanced technology systems. The Crash Prevention Boundary (CPB) methodology is the basis for these new approaches. The CPB is an analytical technique to distinguish between driver performance that prevents a crash and performance that results in a crash. In this paper the CPB concept is used to describe the performance of an Adaptive Cruise Control (ACC) system. Data from the Automotive Collision Avoidance System (ACAS) field operational test of an ACC system is used. This study explores a method to rate safety performance of ACC systems in two situations: where the host vehicle is overtaking a slower moving vehicle and where the host is following a lead-vehicle that is decelerating. The paper presents an empirically based discussion of new computational procedures that can lead to improved estimates of the safety impact of driver assistance systems. The purpose of this paper is not to do a complete analysis of results from this test; but rather, to use a convenience-sample as a means of exploring new approaches to analyzing the data. The paper compares existing descriptions of safety boundaries with new approaches that are based on the CPB concept. Based on the ACC, it appears that these new approaches have the potential of improving the utility of such data for estimation of the safety impact of driver assistance systems.

Mathematics Model for Collision Avoidance in Traffic Alert and Collision Avoidance System

Abstract: In the system of traffic alert and collision avoidance system (TCAS), the time of closest point of approach of the aircraft, horizontal miss distance (HMD), and vertical miss distance (VMD) are the primary parameters to describe the concept of collision avoidance. Firstly, the time of Tau is explained physically which approximates the time to closest point of approach (CPA), and then the formal expression of HMD is induced via the transforming of coordinate which is expressed by relative distance, relative distance rate, and relative acceleration between aircrafts. Finally, the modified model for engineering application is considered.

Unmanned Air Vehicle Collision Avoidance System and Method for Safety Flying in Civilian Airspace

Abstract: A collision avoiding system and a method of safety flying is proposed in this paper for Unmanned Air Vehicles (UAV). The UAV accesses the data from various sensors mounted on board and thus calculates the risks factors for any impending collision. An algorithm for decision making in order to avoid collision is presented in this paper as a pseudo code. Based on the measured as well as estimated risk factors, corrective measures are taken to avoid collision. A stateless collision avoidance system is used for rapid analysis of data that does not have significant correlation between them. For enhanced safety, a synthetic vision system is provided along with the remotely located pilot at the ground station and a communication link is established between the two.

Vehicle side direction collision avoidance system

Abstract: An embodiment of the utility model provides a vehicle side direction collision avoidance system, include: sensing module, control module and warning module, the sensing module is connected with control module, and control module and warning module are connected, control module is used for then controlling warning module and carrying out the anti -collision early warning measure if have the barrierin knowing target danger area according to the vehicle parameter judgement of sensing module measuring The embodiment of the utility model provides a there is the barrier in knowing target danger area through control module if according to the vehicle parameter judgement of sensing module measuring, then controls warning module and carry out the anti -collision early warning measure Because target danger area is the possible region of process of vehicle when turning to, consequently, whether has the barrier in judging target danger area, can avoid the vehicle to turn to in -process collision barrier, realizes the side direction anticollision the when vehicle turns to, effectively improves the vehicle operation security

Vehicle Breaking Support System

Abstract: Smart Automatic Braking System controls the speed of a vehicle depending on the distance to an obstacle and also can initiate emergency braking automatically if needed. In this project report, the implementation of a Smart Automatic Braking System is introduced. A prototype vehicle is designed and implemented. The System will detect obstacles using Sonar Sensor and Arduino will execute emergency braking according to a pre-burnt code in the Arduino. The system has also speed control features. It will reduce or increase the speed of the vehicle depending on the obstacle distance from the moving vehicle to minimize the damage or collision of an accident. Hence, an automated collision avoidance system is proposed that can be affordable to everyone. So, an automated Smart Speed control and Braking system is developed which can be developed in every car. This project used the software Proteus to establish simulation model.