基于单片机msp的点光源跟踪系统硬件设计_毕业设计论文.doc

基于单片机msp的点光源跟踪系统硬件设计 第 PAGE 29 页 基于单片机msp430的点光源跟踪系统硬件设计 设计总说明 目前太阳能是一种清洁无污染的能源, 发展前景非常广阔, 太阳能发电已成为全球发展速度最快的技术。然而它也存在着间歇性、光照方向和强度随时间不断变化的问题, 这就对太阳能的收集和利用提出了更高的要求。目前很多太阳能电池板阵列基本上都是固定的, 没有充分利用太阳能资源, 发电效率低下。据实验, 在太阳能光发电中, 相同条件下, 采用自动跟踪发电设备要比固定发电设备的发电量提高35%，因此在太阳能利用中进行跟踪是十分必要的。 本设计给出了一种基于单片机的点光源自动跟踪系统设计方案, 该设计使用TI公司的超低功耗的MSP430F149 单片机作为整个系统的控制核心，主要由电机驱动模块，点光源检测模块，电源转换模块等模块组成。利用4路光敏三极管(3DU33)来检测点光源的位置并将检测到的信号经过放大传给控制器MSP430F 本设计可以扩展为以后的太阳能发电的自动跟踪系统。该系统不仅能自动根据太阳光方向来调整太阳能电池板朝向, 结构简单、成本低, 而且在跟踪过程中能自动记忆和更正不同时间的坐标位置, 不必人工干预, 特别适合天气变化比较复杂和无人值守的情况, 有效地提高了太阳能的利用率, 有较好的推广应用价值。 关键词：MSP430；光源；跟踪；检测；传感器 Msp430 microcontroller-based point source tracking system Hardware Design Design Description Currently solar energy is a clean and pollution-free energy, the development prospects are very bright, solar power has become the worlds fastest-growing technology. But it also has intermittent, light direction and intensity of the problem change over time, which the collection and use of solar energy put forward higher requirements. At present, many solar arrays are basically fixed, do not make full use of solar energy resources, power generation efficiency is low. According to experiment, solar power, the same conditions, power generation equipment using automatic tracking equipment than the fixed power generating capacity increased by 35%, so to track utilization of solar energy is necessary. ?This design gives a light source based on single chip design of automatic tracking system, the design uses TIs MSP430F149 ultra-low power microcontroller controls the whole system as the core, mainly by the motor drive module, point source detection module, power supply conversion module and other modules. Using 4 phototransistor (3DU33) to detect the location of a point source is detected and amplified signal to pass the controller MSP430F149 microcontroller, operation and processing through the MCU to determine