【作者】 郎强；

【导师】 萧宝瑾；

【作者基本信息】 太原理工大学 ， 通信与信息系统， 2008， 硕士

【摘要】 我国是世界上自然灾害最严重的少数国家之一。特别是近年来,随着全球天气变暖,洪水、风暴、干旱、雪灾等自然灾害越来越频繁,越来越严重,给我国带来巨大的损失。由于我国地域广阔,目前在城镇和农村还没有一个专用的天气预警系统,只是通过电视、广播等形式进行天气预警,其针对性差,有时无法对特定地区的灾害性天气进行及时地预警。为此,我们查阅了大量的技术资料并进行了分析,研究出一套完整的技术方案。此方案利用现有的移动通信系统,结合当地的广播体系,实现了灾害性天气的预警。特别适用于灾害频发并且通信相对落后的农村地区。本文以灾害天气预警为背景,提出了基于ARM嵌入式系统的预警终端的设计方案,以嵌入式预警终端的设计为主线,讨论了嵌入式系统的构成。研究领域涉及嵌入式硬件设计、应用软件的设计和基于USB2.0的数据传输等。预警信息发布系统将灾害天气预警信息通过短信或语音的形式发布出去;预警终端通过手机模块时刻接收来自预警信息发布系统的灾害天气预警信息,当接收到预警短信后,ARM处理器将对预警信息进行解析并自动打开广播系统,将预警信息进行语音广播,同时打开户外显示屏显示预警信息。另外,预警终端还带有USB2.0接口,可以通过PC机实现对语音数据的下载、更新。本人在课题研究中完成了部分硬件设计任务和绝大多数软件设计任务,主要包括以下几个方面:1.完成了灾害天气预警终端的硬件电路的选型和嵌入式操作系统的选择。2.建立以S3C44BOX为核心的硬件的开发平台,完成了硬件设计、制作与调试任务。3.完成了基于μC/OS-Ⅱ的应用程序的设计,经反复调试,程序运行稳定。4.完成了基于USB2.0芯片的固件程序、驱动程序和PC机语音下载程序的设计。更多还原

【Abstract】 China is one of the contries which are vulnerable to natural disasters. Especially in recent years, China frequently suffers the ravages of natural disasters, such as floods, droughts, windstorms and snows by the global weather warming, which cause tremendous losses to people and are increasingly frequent and more and more serious. Because China is a huge geographical country, a dedicated weather warning system has not been established in urban and rural areas at present. People forecast the weather disasters only through television, radio and other forms of weather warning in specific areas. We read a large amount of technical information and develop a complete set of technical solution. By existing mobile radio communication network and the local broadcasting system, we have realized the disastrous weather broadcasting and warning in countryside areas which are backward in telecommunication.Based on the disaster weather warning, this paper introduces a disaster weather warning terminal based on ARM embedded system, and discusses the structure of embedded systems by designing of the disaster weather warning terminal. The area of research involves embedded hardware design, the design of application software, transfer technology based on USB2.0 and other fields. The broadcasting system sends the disaster weather warning information in form of SMS or voice; the terminal receives the warning weather information on time. when SMS is received, the terminal automatically opens to the local broadcasting system, plays the voice of the warning weather information, and opens the outdoor LED display which shows that warning information. In addition, the terminal can also download the information from PC by USB2.0 interface.The author designs a part of hardware circuit and most of software, which includes the following:1. The hardware circuit of disaster weather warning terminal and the embedded operating system are selected.2. The hardware development platform based on S3C44BOX is established, and the design of hardware, production and debug is achieved.3. The application software is designed and tested to be stable.4. Programs of firmware, driver, and download from PC are completed.更多还原