【作者】 董毅光；

【导师】 王克奇；

【作者基本信息】 东北林业大学 ， 农业电气化与自动化， 2009， 硕士

【摘要】 湿地是人类重要的生存环境,现阶段湿地被破坏较为严重,湿地管理和保护十分重要。湿地监测是湿地管理过程中的有机组成部分,基于现代电子技术的自动化监测手段成本低,可以大范围高密度设置监测站点,在空间、时间上都是非常高效的。本研究基于ARM+Linux的嵌入式技术,尝试建立湿地监测数据采集与管理系统。本研究探讨了湿地监测的内容、指标以及监测的过程,采用在嵌入式系统中结合无线局域网(WLAN)技术用于湿地数据采集的方案。研究了基于ARM+Linux的嵌入式系统开发,包括以S3C2410为核心的各种硬件电路设计、嵌入式Linux开发中Bootloader开发移植和Linux内核移植等。将嵌入式数据采集子系统划分为数据采集和通信两部分,数据采集部分以DS18B20温度传感器为例进行了程序开发,讨论了基于SQLite3的数据库应用开发方法,实现了对原始数据的存储管理;通信部分以无线局域网为通信手段,讨论了嵌入式Linux下的TCP/IP通信及socket编程,并实现了采集设备与上位机的通信。完成了湿地信息管理子系统的设计与开发,提供了多种形式的数据查询和统计功能,并实现了数据导出为DBF、EXCEL等格式的功能,查询和统计的结果能够以表格、图表的方式展示,结果一目了然。通过实验表明,将无线网络技术与嵌入式系统相结合,可以实现湿地监测数据的采集与发送功能。湿地监测数据采集与管理系统的建立,能够为进一步分析湿地演化等后续工作提供支持,对开展湿地管理和保护工作具有重要意义。更多还原

【Abstract】 Wetlands are important environment for the survival of the human. Nowadays, wetlands are serious damaged by human. Management and protection of wetlands is very important. Wetland monitoring is an integral part of process of wetland management, modern electronic technology-based monitoring methods are low cost, and can be large-scale and high-density used. They are very efficient in the space and time. This paper creates a wetland monitoring data collection and management system based on ARM and embedded Linux.This paper discusses the content of wetland monitoring, indicators and monitoring process, introduces the embedded systems with WLAN in collecting wetland monitoring data. Embedded systems development is researched based on ARM and Linux, including varieties of hardware circuit design on the S3C2410, Bootloader and Linux kernel transplantation in embedded Linux development. Embedded data collection subsystem is divided into two parts, data collection and communication. Using DS18B20 as an example develops data collection programs, discusses the database application development based on SQLite3, and completes the raw data of the storage management. The part of communication adopts WLAN for some means of communication, discusses the TCP/IP communications and socket programming under the embedded Linux, and implements communication with the host computer.Finally, this paper designs and completes the wetlands information management subsystem, which provided various forms of data query and statistical functions, and the function of the data exported to DBF, EXCEL format. The results of query and statistical are showed through table and chart, and the results at a glance. Experiments show that the wireless network technology and embedded systems can be achieved to wetland monitoring data collection and delivery. Wetland monitoring data collection and management system is able to be further analysis, such as wetlands in the evolution of the follow-up to provide support for carrying out the management and protection of wetlands in the great significance.更多还原