Building Temperature Field Test System Based On Embedded Platform Of Cortex-M3

With the energy efficiency of housing a growing concern in the community. The temperature field in the analysis of housing thermal comfort, thermal environment, building energy analysis plays an important role. Therefore, the temperature field information for remote collection draws of great practical significance. In the current process of testing the temperature field, usually using infrared imaging system for the collection, the disadvantages of this method due to the infrared camera, can not get the whole room temperature field data, and test costly. Also in the long testing process, the operating personnel at the scene to be tested, so that the continuous temperature to obtain a long field data requires a lot of labor. To achieve intelligent drawing temperature field, the development of a system based on the temperature field of embedded remote rendering system, the system of remote data monitoring center, transit node, temperature information collection terminal three structures. The main work is as follows:First, the paper discusses the algorithm and the temperature field zigbee positioning algorithm drawn. Through analysis and discussion of the algorithm for the structural design of the system, and software design provides a basic design approach.Secondly, for remote data monitoring center, transit node, the tertiary structure of the temperature information collection terminal hardware design, real-time temperature information collection terminal responsible for collecting temperature information. Each terminal acquisition modules are intelligent Cortex-M3processor core, combined with a temperature sensor input temperature information to test space for the module. Each collection terminal module via short-range transmission module and transit node communication, transmission status information, send the information to a wireless network. This information is sent via a transit node through the GPRS network to a remote data monitoring center, in the collection of nodes and transit nodes, using the C language, the ADC acquisition program, GPRS sending procedures.Finally, the use of labview designed and developed a remote data center monitoring and temperature data reception drawing program. Data center received via the Internet from GPRS wireless network information data relay node reported, and the information stored by the data processing software for further data applications, and then draw out the temperature field through the temperature field drawing program. Field testing by the system, the system has been fully tested various functions, better meet the design requirements, can draw out over the full temperature field, in line with the requirements of the analysis.