基于嵌入式法医鉴定测量分析系统的研究与设计

发布时间：2018-06-08 17:25

本文选题：ARM处理器 + 数据采集　；参考：《贵州大学》2017年硕士论文

【摘要】：随着电子科学技术的迅速发展,嵌入式处理器性能也随之快速提高,以嵌入式为基础的电子领域同样发生了天翻地覆的变化,其中以嵌入式为核心的测量系统也在慢慢兴起,采用嵌入式处理器的检测设备具有功耗低、体积小、性能好等众多优点。本论文在此基础上从测量系统的便携性、智能化、实用性、兼容性等角度去分析,将重点改进传统的法医鉴定测量分析系统的数据传输方式,简化人工操作,提高工作效率,加强数据处理能力,提高系统兼容性。整体系统架构综合考虑后采用基于ARM架构处理器为主控制器,温度传感器采用DS18B20封装插入式温度传感器,环境监测采用湿度传感器和光照传感器,以直肠温度为主要研究对象,根据物体冷却基本规律,结合环境温度,以及尸体衣着、覆盖物等影响因素,抽象并建立用于推断死亡时间的数学模型,分析出更精确的死亡时间算法,提高数据分析能力和准确性。其创新性和实用性体现在:数据传输采用无线传感技术,使设备兼容性更强;人机交互采用5.4寸触摸屏,可输入多种不可自动测量数据,改变了传统法医鉴定测量分析系统的单一性;建立了用于推断死亡时间的数学模型,分析出了更精确的死亡时间算法;温度数据自动采集记录,建立测试数据库,提高测试数据记录的准确性和系统的数据处理分析能力,采集的数据和死亡时间分析结果通过蓝牙发送到手机客户端上,为法医工作者提供方便,同时为整个法医鉴定系统提供重要的测量数据和分析结果。
[Abstract]:With the rapid development of electronic science and technology, the performance of embedded processor has been improved rapidly. The electronic field based on embedded has also changed dramatically, in which the measurement system with embedded as the core is rising slowly. The detection device with embedded processor has many advantages, such as low power consumption, small size and good performance. On the basis of this, this paper analyzes the portable, intelligent, practical and compatibility of the measurement system. It will focus on improving the data transmission mode of the traditional forensic identification measurement and analysis system, simplifying the manual operation, and improving the working efficiency. Strengthen data processing ability and improve system compatibility. After the whole system architecture is considered synthetically, the main controller is based on arm architecture processor, the temperature sensor adopts DS18B20 package plug in temperature sensor, the environment monitoring adopts humidity sensor and illumination sensor, taking rectal temperature as the main research object. According to the basic law of object cooling, combined with environmental temperature, body clothing, covering and other influencing factors, the mathematical model used to estimate the time of death is abstracted and established, and a more accurate algorithm of the time of death is analyzed. Improve data analysis ability and accuracy. Its innovation and practicability are as follows: wireless sensor technology is used for data transmission, which makes the device more compatible, and the human-computer interaction adopts 5.4-inch touch screen, which can input many kinds of non-automatic measurement data. It changed the singularity of the traditional forensic identification measurement and analysis system, established a mathematical model to infer the time of death, analyzed a more accurate algorithm of the time of death, automatically collected and recorded the temperature data, established a test database, The accuracy of test data record and the ability of data processing and analysis of the system are improved. The collected data and the result of time of death analysis are sent to the mobile phone client through Bluetooth, which provides convenience for forensic medical workers. At the same time, it provides important measurement data and analysis results for the whole forensic identification system.
【学位授予单位】：贵州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：D919;TP274

【参考文献】