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基于单片机的数字式光照强度检测系统的设计
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摘 要
% u, @* V' U5 n I1 T! f+ F该数字式光照强度检测仪以单片机和模数转换为技术核心，具体由单片机最小系统、下载通信模块、 A/D模数转换模块、光照方向检测模块、输出选择模块和数码管显示模块组成。 在本系统的设计中， 利用光敏电阻阻值随光强的变化特性来检测光强，采用单片机控制输出选择模块和数模转换芯片依次测量不同方向的光照强度，并通过编程处理数据进行光强的比较，最后通过数码管显示检测结果。
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! k6 V! B% t' ~, e* z& N总之，通过对电路的设计和实际装调，最终基本实现了基于单片机的数字式光照强度检测仪的整体功能，可显示最大光照强度及光强照射方向。
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& I/ p$ ?" h$ N; P# X m( C关键词 ：单片机 ；光敏电阻 ；ADC0804；IC4051；数码管
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ABSTRACT # s8 p; u+ D5 T# C+ {/ I
The digital light intensity detector with microcontroller and analog-digital conversion as a core technology, specifically by the microcomputer system, download the communication module, A/D analog-digital conversion module, light direction detection
2 k9 m- F3 z- N9 ~2 Umodule, the output selection module and digital display module composition. In this system design, use of photosensitive resistor characteristics with the light intensity to detect changes in light intensity, the output select control of single-chip module and several
1 C! L# }& O( s, h! v/ y7 A0 Sanalog converter followed by measuring the light intensity in different directions, and handling data through the program intensity comparison, the final test results via digital display. & r& p3 ]) W4 C& y9 I
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In short, through the circuit design and the actual alignment, finally realizing a single chip based on digital light intensity detector of the overall function, can show a maximum light intensity and light intensity irradiation direction.5 Z, r+ ^' r+ D) {
2 N0 q2 H7 T! J0 N+ }1 PKey words:SCM；Photosensitive Resistance；ADC0804；IC405；Digital Tube ) r9 ?. N0 m2 W6 n0 c; X
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发表于 2019-10-8 16:53
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