摘要：随着时代的发展，科学技术的迅猛提升，能源的高效利用越来越重要。目前路灯的主要控制方式还是按时控制，不可避免的会产生电能的损耗。因此，本设计提出了一种新型的路灯控制方式，即光控制。主要采用光照传感器来进行光照强度的检测，利用zigbee进行远程信号传输，将太阳光强度转化成电压的模拟信号，通过单片机控制路灯的熄灭。

    光照传感器是诸多传感器中最为常见的一种。本设计选用光敏电阻为光照传感器，光敏电阻随着光照强度的变化而变化，利用光敏电阻的光照特性实现光强的检测。该设计可分为三部分：即光照检测部分、信号处理部分、光强显示部分。具体方法是将光敏电阻与一定值电阻串联接入电路，光照强度的变化会引起光敏电阻阻值的变化，从而影响电路电流及电压值的分布，将模拟电压转换为数字电压，并将其通过labview模拟界面显示出来，绘制成光照强度变化曲线。本设计电路结构简单，成本相对较低，通过对光敏电阻阻值的变化的运算处理，从而检测不同的光照强度，实用性较强。78011

毕业论文关键词：路灯; 光照强度; 传感器; Zigbee;  Labview 

Abstract：With the rapid development of science and technology, efficient power utilization is becoming increasingly important。 At present, we mainly control street lamps according to the time, which will inevitably cause electrical energy loss。 Therefore, this design provides a new street lamp control mode, namely light control, which mainly uses light sensors to detect light intensity, use zigbee remote signal transmission, converting it into an analog signal voltage lights extinguished by SCM。

Light sensor is one of the most common sensors。 This design uses light-sensitive resistors as light sensors, which are changed according to light intensity。 We make use of its light feature to detect light intensity。 The design can be pided into three parts: the light detecting section, a signal processing section, the light intensity display section。 The specific method is to let light-sensitive resistors in series with a certain circuit, which causes a change in light intensity of the photosensitive resistor, thus affecting the distribution circuit current and voltage value of the analog voltage to a digital voltage, and displayed by labview simulation interface, plotted as a light intensity curve。 The design of the circuit has simple structure and strong practicability with relatively low cost, detecting different light intensities by the change of the photosensitive resistor arithmetic processing。

Keyword: Lights; Light intensity; Sensor; Zigbee; Labview

目  录

1  绪论 5

1。1 研究背景 5

1。2 研究状况 5

1。3 课题研究的目的和意义 6

1。4 论文主要工作及各章节安排 6

2  传感器的相关介绍 6

2。1 传感器的定义 6

2。2 传感器的组成 6

2。3 光照传感器 7

3  系统设计方案 8

3。1 总设计框图 8

3。2 系统工作原理 8

3。3 路由节点设计 9

4  系统的关键技术 10

4。1 IEEEE802。15。4