The Research Of Data Transfers Unit & Application In Environment Monitoring

The data from environmental monitoring system is important to our working foundation, decision-making, management and the pollution measure in the project of environment in China. Along with the growth of the world environment problem and the technology of environmental protection, the watching means, method, the management level are developing gradually. At present, the most available means and trend are to use applied communication technology to manage the environment on line.Building the environment monitoring system on line is huge and complex. It needs high level for our monitoring knowledge, management technology, design personnel and our using personnel. At present, the department of environment is devoid of research in this field in China. By the way, our nation has put forward to solve the communication transfer means fast in the field, especially develop the technology by using the embed system with Ethernet. This text has discussed how to integrate the embed system with Ethernet and the environment watching technology by designing an embed on line environment monitoring system. This text discussed the apply of environment embed system with data collection, management and the data transfer. The content of this text include five sections:The first section is the analysis of the design method, monitoring method, and means in the field of environment at present. It summarizes the characteristics of these system. At last in this section, it discussed the researching background, content and significance of this text.The second section discussed the jumping-off place of this design. It introduced the design of on line environment embed system based on primary system.The third section researched the hardware design of this system, including designing mini-system of S3C44B0 and the interface with RTL8019 and so on.The fourth section researched the software design of this system, including the naturalization of uC/OS II on S3C44B0, and the naturalization of LwIP both on uC/OS II and RTL8019. At last, discussed the design of application and its interface with client-server mode.The last section discussed the design internet applications in long-distance data center. At first, it introduced the system protocol which is user-defined. And then, it analyzed the protocol how to embed in the TCP/IP. At last, it discussed the program design and the UI design.