便携式红外测温系统的设计说明书.docVIP

摘 要 在许多疾病预防检测中，测量温度的人数众多，时间紧迫。传统的体温计多采用物理原理，根据水银随温度升降的热胀冷缩的性质，通过读取刻度上的数值来判断温度。这种方法由于测量时间比较长，读数不方便，容易受环境和人为因素的干扰等缺点，已经不能满足人们的测温需求。红外测温系统为人们体检测温提供了快速有效的非接触式手段，可广泛应用于医院、机场、海关、车站等人口密集地区的体温检测。 本课题针对目前国内外医用测温仪器的现状，在查看了大批文献资料的基础上，提供了一种新的温度测量方案，其以热释电红外测温技术作为参考，是一种基于单片机的热释电红外测温系统，采用具有SPI（series peripheral interface TN系列红外温度传感器来测量温度信号，并且将测量的目标温度数据送给单片机处理，之后送给液晶屏显示，同时将测量出的数据通过无线蓝牙传输到手机客户端，并且利用单片机的蜂鸣器，当温度超过某一个设定的温度值时，就会发出警报声。 本文对系统设计中的每个硬件部分的功能和设计思路做出了详细地说明，并给出了系统的软件设计。方案以流程图的方式介绍了各个功能的具体实现，软件采用了C语言来编写。红外测温技术与传统的测温方式相比，其具有响应时间短、可靠性比较强、测量温度范围广、不易被其他环境与人为因素干扰、读数方便、使用简单、非接触式测量、不易损坏等一系列优点。另外对测温误差因素进行分析，探讨相应的抗干扰措施，最后对系统的进一步研究工作进行展望。 关键词：红外测温系统；单片机；热释电传感器 Abstract In a lot of diseases prevention and detection , the number of measuring the temperature is numerous ,and time is pressing. Traditional thermometers are always using physical principles , which are based on the nature of mercury with temperature thermal expansion and contraction , by reading the value on the scale to determine the temperature . This method can no longer meet the needs of the people of temperature , because it spends a long time measuring temperature , and it is not convenient to read the results of measuring . Infrared temperature measurement system for people to provide a fast and effective examination of non-contact methods, can be widely used to detect temperature hospitals, airports, customs, railway stations and other densely populated areas. The topic for the current status of medical thermometer at home and abroad , and in view of the large literature on the basis of providing a new temperature measurement program, which in pyroelectric infrared temperature measurement technology as a reference and is based on SCM pyroelectric infrared temperature measurement system that uses TN series infrared temperature sensors with SPI (series peripheral interface serial Peripheral Interface ) interface to measure the temperature signal and the measured data to the target temperature of single treatment, given af