基于ARM11和Linux的室内环境监测系统的设计与实现

发布时间：2019-02-18 18:10

【摘要】：随着处理器技术、嵌入式操作系统技术和传感器检测技术的发展，嵌入式系统越来越多的应用在各种室内场所的环境监测系统中。环境监测系统的精度、效率和智能化程度不断提高，功能不断强化。这在一定程度上解决了过去人工方式耗费大量资源以及传感器性能较低的缺点。同时，人们的自我保护意识不断加强，人们要求更加舒适、健康和安全的室内环境。因此，研究一种经济、高效和智能的室内环境监测系统对于环境的实时监测，确保当前环境的舒适安全，保障人们的健康具有十分重要的意义。本文基于ARM11处理器、嵌入式Linux操作系统和数字式传感器，设计和实现了一种室内环境监测系统，实现了对环境中温度、湿度、光照和尘埃颗粒的实时采集与传输。本文首先对系统采用的温湿度传感器、光照传感器、尘埃颗粒传感器、ARM11开发板进行了介绍，其中主要包括传感器的电气特性、通信协议和ARM开发板主要资源和引脚说明。接着针对本课题详细定制了嵌入式Linux系统，包括对U-boot、Linux内核和文件系统的定制与移植，其中主要增加了本系统需要的DM9000网卡设备、I2C设备、NFS文件系统和内核模块动态加载等功能，同时对不需要的模块进行了裁剪，使内核达到最小化的需求。最后结合传感器通信协议、内核模块技术、定时器机制和socket网络通信，设计设备驱动程序和用户应用程序，，实现对温度、湿度、光照和尘埃颗粒的采集与传输。本文采用了高性能的ARM11处理器、嵌入式Linux操作系统和数字式传感器，确保了系统的准确、高效和智能化。该系统可广泛用于监测医院、工厂等场所的环境数据，具有较好的发展前景。
[Abstract]:With the development of processor technology, embedded operating system technology and sensor detection technology, more and more embedded systems are used in various indoor environment monitoring systems. The precision, efficiency and intelligence of the environmental monitoring system have been improved and its functions have been strengthened. To some extent, it solves the disadvantages of consuming a lot of resources and the low performance of sensors in the past. At the same time, people's consciousness of self-protection has been strengthened, and people need a more comfortable, healthy and safe indoor environment. Therefore, it is very important to study an economical, efficient and intelligent indoor environment monitoring system for the real-time monitoring of the environment, to ensure the comfort and safety of the current environment, and to ensure the health of people. Based on ARM11 processor, embedded Linux operating system and digital sensor, this paper designs and implements a kind of indoor environment monitoring system, which can collect and transmit temperature, humidity, illumination and dust particles in real time. This paper first introduces the temperature and humidity sensor, illumination sensor, dust particle sensor and ARM11 development board, which mainly includes the electrical characteristics of the sensor, communication protocol and the main resource and pin description of the ARM development board. Then the embedded Linux system is customized in detail, including the customization and transplantation of the U-bootbox Linux kernel and file system, in which the DM9000 network card equipment and the I2C device are mainly added to the system. The NFS file system and kernel module are loaded dynamically. At the same time, the unnecessary modules are clipped to minimize the requirement of the kernel. Finally, combining sensor communication protocol, kernel module technology, timer mechanism and socket network communication, the device driver and user application program are designed to realize the collection and transmission of temperature, humidity, illumination and dust particles. In this paper, high performance ARM11 processor, embedded Linux operating system and digital sensor are used to ensure the accuracy, efficiency and intelligence of the system. The system can be widely used to monitor environmental data in hospitals, factories and other places.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1;TP316.2;X84

【参考文献】