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 present invention involves the field of computer simulation application technology, and specially involves a computer analysis calculation and simulation simulation system with a car collision pedestrian accident form. Background technique [0002] Car collision pedestrian accidents have always been the main form of accidents in traffic accidents.According to relevant statistics, the proportion of pedestrians in the number of traffic accidents and injuries of traffic accidents is more than 25%.Traditional car collision pedestrian accident analysis and appraisal mainly based on the statement of the parties and witnesses at the scene of the accident, and the final stop position of the accident vehicle, road structure, vehicle brake trace and other accident site data drawing on the scene of the accident vehicle.Simply and approximately analyze the motion status and live process of the accident vehicle, and to identify the traffic accident based on the abov...

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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