本文選題：ARM處理器 + 數據采集��； 參考：《貴州大學》2017年碩士論文

【摘要】：隨著電子科學技術的迅速發(fā)展,嵌入式處理器性能也隨之快速提高,以嵌入式為基礎的電子領域同樣發(fā)生了天翻地覆的變化,其中以嵌入式為核心的測量系統(tǒng)也在慢慢興起,采用嵌入式處理器的檢測設備具有功耗低、體積小、性能好等眾多優(yōu)點。本論文在此基礎上從測量系統(tǒng)的便攜性、智能化、實用性、兼容性等角度去分析,將重點改進傳統(tǒng)的法醫(yī)鑒定測量分析系統(tǒng)的數據傳輸方式,簡化人工操作,提高工作效率,加強數據處理能力,提高系統(tǒng)兼容性。整體系統(tǒng)架構綜合考慮后采用基于ARM架構處理器為主控制器,溫度傳感器采用DS18B20封裝插入式溫度傳感器,環(huán)境監(jiān)測采用濕度傳感器和光照傳感器,以直腸溫度為主要研究對象,根據物體冷卻基本規(guī)律,結合環(huán)境溫度,以及尸體衣著、覆蓋物等影響因素,抽象并建立用于推斷死亡時間的數學模型,分析出更精確的死亡時間算法,提高數據分析能力和準確性。其創(chuàng)新性和實用性體現在:數據傳輸采用無線傳感技術,使設備兼容性更強;人機交互采用5.4寸觸摸屏,可輸入多種不可自動測量數據,改變了傳統(tǒng)法醫(yī)鑒定測量分析系統(tǒng)的單一性;建立了用于推斷死亡時間的數學模型,分析出了更精確的死亡時間算法;溫度數據自動采集記錄,建立測試數據庫,提高測試數據記錄的準確性和系統(tǒng)的數據處理分析能力,采集的數據和死亡時間分析結果通過藍牙發(fā)送到手機客戶端上,為法醫(yī)工作者提供方便,同時為整個法醫(yī)鑒定系統(tǒng)提供重要的測量數據和分析結果。
[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.
【學位授予單位】：貴州大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：D919;TP274

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