分布式信源编码理论及应用的研究().docVIP

本科毕业 摘 要 随着社会经济的快速增长，传统的燃料能源正在不断减少，同时对环境的危害越来越严重。太阳能是一种可再生能源，并且具有清洁、丰富等独特优势，具有广阔的发展前景。但是，目前太阳能的利用率较低，制约了其发展。目前，大多数太阳能发电是采用固定式的跟踪系统，无法随着太阳的运行进行转变，所以电能转化效率较低。本设计以单片机为控制中心，采用太阳能双轴跟踪装置充电，可在两个自由度中上对太阳进行跟踪，有效的提高太阳能的利用率。 本系统以单片机为控制核心，光电传感器将采集到的光线强弱信息传送到单片机，单片机经过分析处理后，驱动步进电机运转，在两个自由度上对太阳能电池板的角度进行调整，达到太阳光双轴跟踪的效果，同时对充电进行控制。采用单片机来实现的太阳能双轴追踪系统能有效提高太阳能的转换效率，而且实时性好，成本较低，具有较广泛的应用前景。 关键词：Design of Two-axe Solar Tracking and Charging System Based on MCU Tan Xueqing (College of Engineering, South China Agricultural University, Guangzhou 510642, China) Abstract: With the rapid growth of social economy, the traditional fuel sources is decreasing quickly, and the harm of environment is more and more serious at the same time. Solar energy is one of the renewable energy, and has the unique advantages such as clean, abundant, has a broad development prospects. But the current solar utilization is low, restricting its development. Currently, most solar tracking system is fixed, unable to shift as the sun run, so the energy conversion efficiency is low. Microcontroller is the core of the whole system. The system can track the sun in the two degrees of freedom, which can effectively improve the utilization of solar energy. ?This system adopts microcontroller as nucleus and photoelectric sensor transmit the collected light information to the microcontroller. After analyzing and processing, microcontroller drive two stepper motors running, so it can adjust the angle of solar panels on the two degrees of freedom. This system achieves the goal of two-axis tracking solar, and to control charging at the same time. By microcontroller to realize two-axis tracking solar systems can effectively improve the conversion efficiency of solar energy, and has a broad application prospect with the advantages of good real-time and low cost. Key words: Microcontroller Two-axes tracking Solar Charging 目 录 1 前言 1 1.1 课题的研究背景和意义 1 1.2 太阳能跟踪系统的国内外研究现状 2 1.3 本设计的主要研究内容 2 2 总体方案确定 3 2.1 方案