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摘要我们都知道，大多数的传统体温测量计采用的是物理原理，一般是利用水银或者其他常用测温物质热胀冷缩的性质来测量我们所需测量的物体或者人体的体温的。我们通过读取仪器上的刻度值，来判断物体的实际温度。显然，利用这种原理来测量人体或者物体的温度，不但速度较慢，而且使用范围也比较局限，精度也是一个问题。为了解决这个问题，本系统做出了一个全新的方案。
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本系统是由STC89C52单片机、MLX90615红外温度传感器、LCD液晶显示器、RT5350无线发射器和报警电路等构成的。非接触式红外线快速测量体温的目的可以通过它们来实现，本设计能够对人体温度进行准确的测量，并且所需时间很短。当测量得到的温度不在设定范围里面时，报警电路将会发出相应的警报，而且，当前的测温时间也会通过显示器显示出来。非常具有实用价值。
为了实现本设计所要实现的功能，本文参考了红外线测温方面的相关资料，并对选用的器件和设计的电路进行了仔细的研究和探索。最终确定了该方案，来实现所需要的功能。同时，本设计也对软件部分进行了仔细的研究。由于本文使用了高精度的测温芯片和比较完善的电路等的优点，从而使得本系统的功能能够比较好的实现。26121
毕业论文关键词： 非接触式测量；红外温度传感器；报警电路；STC89C52单片机
Abstract We all know that most of the conventional temperature gauge uses a physical principle, the general is the use of mercury or other substances commonly used in thermal expansion and contraction of the nature of the temperature measuring object or the body's temperature we need measured. By reading the scale value on the instrument, in order to determine the actual temperature of the object. Obviously, the use of this principle to measure the temperature of the human body or an object, not only slow, but also more limited scope of use, accuracy is a problem. To solve this problem, the system has made a new plan.
The system is composed of STC89C52 microcontroller, MLX90615 infrared temperature sensor, LCD liquid crystal display, RT5350 wireless transmitter and alarm circuit configuration. Non-contact infrared temperature of the object can be quickly measured by them to implement this design capable of accurately measuring body temperature, and takes very little time. When the measured temperature range which is not set, the alarm circuit will receive a corresponding alert, and the current temperature measurement time is also displayed by the display. It is very valuable.
In order to achieve this design to achieve the function, herein by reference of the relevant aspects of infrared temperature measurement data, and the selection of devices and circuit design was carefully studied and explored. Finalize the program to achieve the required functionality. At the same time, the software part of the design was carefully studied. Because this article uses the advantages of high-precision temperature measurement circuit chip and a relatively sound like, so that the function of the system can be better realized.
Key words : Non-contact measurement;infrared temperature sensor; alarm circuit; STC89C52 single-chip microcomputer
目 录
摘 要 I
Abstract II
1 绪 论 1
1.1 引言 1
1.2 选题目的和研究意义 1
1.3 发展历史和应用领域及发展现状 2
1.4 发展趋势和研究方向及研究方法 2
2. 红外测温原理 4
2.1 红外测温的基础理论 4
2.2 人体红外测温仪的性能指标及作用 4
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