【作者】 张占强；

【导师】 李全虎；

【作者基本信息】 内蒙古大学 ， 信号与信息处理， 2008， 硕士

【摘要】 由于超载过牧、人为开垦草原和全球气候变暖等因素的影响,使草原生态环境遭到了严重破坏,草场沙化、退化现象严重。然而,现在人们已经逐步认识到,草原生态环境对于人类可持续发展的重要性。于是积极采取措施来治理草原生态环境,使草原生态环境得以恢复,其中草原生态工作者在草原生态恢复过程中起着重要的作用。草原生态监测系统是为草原生态工作者服务的前提下提出的,目的是给他们提供准确、详实的资料,为其科学研究服务。本文分析了无线通信GPRS(General Packet Radio Service)和微处理器DSP技术,提出了基于GPRS的草原生态监测系统整体设计方案,主要论证了一种基于DSP微处理器和GPRS网络通信技术实现远程数据传输的系统,从而实现远程数据和图像的实时监测功能,其中本系统的核心内容是通过TMS320LF2407A DSP控制图像、温度、湿度、风速等传感器采集数据,DSP将采集到的数据送到GPRSDTU(GPRS Data Transmission Unit),最终通过GPRS、INTERNET网络传送到控制中心,控制中心将收到数据存储,并恢复出原图像。论文的结构是,首先介绍了以TMS320LF2407A DSP为核心的硬件平台(最小系统);在硬件平台建立的基础上,对图像采集模块C328的工作原理、接口电路及控制程序作了系统的阐述;同时也对温度、湿度和风速传感器的工作原理作了简要说明;接着讨论了GPRSDTU的原理、组网方案和配置方法;根据系统功能目标和性能要求,提出了控制中心程序设计的整体框架;最后对本文内容作了简要的总结,并提出了一些设计中存在的问题,期望在以后的研究中逐步完善。更多还原

【Abstract】 Since overloading the animal husbandry, artificially reclaiming the grassland, global warming and other factors, the grassland ecological environment has been seriously damaged. The grassland desertification and degradation is serious.Howerver, now people have gradually realized that the grassland ecological environment for sustainable human development is important. So people take active measures to control the grassland ecological environment and to restore the grassland ecological environment. The grassland ecology workers in the grassland ecological restoration process play an important role. The grassland ecological monitoring system serves the grassland ecology workers in order to provide them with accurate, full and accurate information for scientific research.This paper analyzed the GPRS wireless communication and DSP microprocessor technology and proposed overall design plan based on GPRS. This paper major demonstrates through the DSP microprocessors and GPRS network communication technology to attain long-distance real-time, monitoring data and images. The system is the core content that the TMS320LF2407A DSP controls to collect images, temperature, humidity, wind speed and other sensor data. The DSP collects the data and sends to the GPRS DTU (GPRS Data Transmission Unit).Finally the GPRS DTU sends the data to the control centre through GPRS and INTERNET network. From the structure, the paper first introduced the TMS320LF2407A DSP as the core hardware platform (minimum system).And discussed the image module of C328 on principle, interface circuit and control procedures. Also on temperature, humidity and wind speed sensor the paper gave an outline of the principle and discussed principle, network scheme and configuring approach of the GPRS DTU. According to the functional goals and performance requirements of the monitoring system, the paper proposed the overall design of the control centre programs. Finally the paper briefly summarized the contents of this article and put forward a number of existing problems in design, which hope gradually improving in subsequent studies.更多还原