足底压力统计变化规律测试与侦破技术

Detection and Testing of Statical Results of Impact Forces by Human Feet

利用现场足迹特征，分析罪犯的性别、年龄、身高、体态、行走姿势等个人形体特点，常称为给罪犯＂画像＂。这一技术在侦破案件中起了一定作用。本课题研究的目的在于：（１）研究人在常态下行走时留在地面上的平面足迹反映出压力的分布和变化规律，分析压力与年龄的相关性，从中研究出分析年龄的科学方法，提高分析年龄的准确率。（２）研究平面足迹压力与人的性别、身高、体态、行走姿势的相关性找出各自的科学分析方法。（３）从分析理论上全面加以提高，一方面论证以往分析经验的科学性，使之理论逐步系统化为足迹分析提供可靠依据，另一方面为平面足迹的定量化检验创造条件。本文论述了步态测试理论基础，测试系统简介，测试方法和统计处理结果，以及侦破工作的启示。

Guided by the scene of footprints characteristics, we can make out the personal Physique features of the criminal (such as sex, age, height, build, walking posture,etc.),which is of t6n called to n draw a portrait' of the criminal. This technique plays an important role in solving cases.The purposes of our research are:(1 ) To investigate the distribution and variation of the impact forces reflected by the footprints mace by a normally walking man on the ground. To analyze the relevance between the Pressure and ace and find out a scientific way to improve the accuraCy of the age determination.(2) To inveshgste the relevance between the impact forces by human feet and his (her) sex,height, build and walking POSture to get scjenhfic method detecting each feature.(3) To enrich theoretical analysis to testify the accuracy of former experiences and systemize them to Provide reliable bssis and on the other hand to prepare the ground for quantitative analysis on the Plane footprints.In this Paper we have discussed the pace testing basic theories, the teaing syStem introduction, the tdsting methods, the statical resultS and enlightenment from the detective work.