Computer system for analyzing, calculating, simulating and reconstructing vehicle-pedestrian collision accident

Abstract

The invention discloses a computer system for analyzing, calculating, simulating and reconstructing a vehicle-pedestrian collision accident, which is used for road traffic accident assessment of a public security traffic management department. Through the system, running speed and collision speed of an accident vehicle in the vehicle-pedestrian collision accident can be calculated according to basic data acquired by accident scene inspection, and two-dimensional track description and three-dimensional process reconstruction of the accident vehicle, and main calculating data table output and accident occurrence process brief text output of the vehicle-pedestrian collision accident are realized. Through the system, technological content of traffic accident identification and handling is effectively improved, so the analysis and assessment result of the system can be easily and highly accepted by the traffic management department, an accident inspection organization and accident parties; therefore, the system plays an important role in distinguishing responsibility, avoiding contradiction intensification, reducing social instability factor, enhancing harmonious development of social life and the like; meanwhile, the system can be widely popularized and applied and has obvious business commonness and social public benefit.

Description

technical field [0001] The invention relates to the technical field of computer simulation application, in particular to a computer analysis calculation and simulation reproduction simulation system of the accident form of automobile collision with pedestrians. Background technique [0002] Automobile collisions with pedestrians have always been the main accident form in traffic accidents. According to relevant statistics, pedestrians account for more than 25% of the number of people killed and injured in traffic accidents. The analysis and identification of traditional car collision with pedestrian accidents is mainly based on the statements of the parties involved in the accident scene and eyewitnesses, as well as the final parking position of the accident vehicle, road structure, vehicle braking marks and other accident scene data obtained from the road traffic accident scene inspection to draw the accident scene map. Simply and approximately analyze the movement state o...

AI Technical Summary

Problems solved by technology

The impulse / momentum analysis method is currently a common method to solve the calculation and reproduction of car collision with pedestrian accidents. Its principle is based on the conservation of momentum during the collision process, which is relatively simple. Factors such as car deformation are ignored, and the output of collision pedestrian parameters is relatively rough; multi-rigid body analysis The principle of the method is based on the theory of multi-rigid body momentum and energy conservation, and simulates deformation with rigid body penetration, which has the characteristics of fast calculation speed; finite element analysis method is an important method for calculating and reproducing traffic accidents that has emerged in recent years, but due to It takes a long time to build a fine finite element model, and the calculation scale is large. For frequent road traffic accidents, the calculation efficiency is not high

After searching the existing technical literature, it is found that at present, although there are many traffic accident reproduction software developed at home and abroad, including some excellent accident simulation software, there is still no set of truly suitable and generally practical automobiles for the actual traffic safety situation in our country. Computer System for Analysis, Calculation and Simulation of Pedestrian Collision Accidents

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