Design And Implementation Of Highway Roadbed Temperature Collector

Accompanied with the development of the transportation, the highway circulation security also become more and more protruding, especially in recent years, traffic accidents occurred very common, according to the authority statistical figures, about 363257 highway traffic accidents happened in 2008, which caused 25269 people died and 114867 injured, more than 2 billion RMB lost directly. In these accidents, tyre burst caused by too highly temperature of the Pavement and pavement crack even lead to the roadbed sank nearly hold 35 percent. Though the workers have taken a lot of methods when they carried out the constructions, the new pavement always crack within a shot time. According to the research, highway roadbed temperature-field changing has put an important affect to the durable of the pavement, which means before constructing the highway and after built up, we must make deeply research to the roadbed temperature, and to know the roadbed temperature field's vary regular pattern.Based on these highway diseases which happened during the time when constructing and get using of the highway, with the analytical figure supplied by the highway department, we introduce a highway roadbed temperature collect system based on the ARM7 micro processor, and discuss the structure of the system by hardware designing of the temperature collecting system, with the help of the software, makes to collect different supervise areas'temperature in the same time come true. Using timer DS12CR887 to count the time, collect the temperature every 12 hours, and put these numbers to the memory chip, after a month, workers could read the numbers out or by the wireless mode in the long distance. In order to supervise the operation state of these temperature sensors, we add LED display module. In addition, to ensure the system can work stably for a long time in open field, we take the measures of reducing power consume.The author designs all part of hardware circuit and most part of the software, which mainly includes the followings:1,Researched the design proposal of the highway roadbed temperature collector software and hardware, selected the S3C44B0 as the main control chip, and the C language as the design language.2,Based on the Altium Design6.9, I finished the design of SCH and PCB.3,The hardware development platform based on the S3C44B0 micro processor is established, and achieved the design of hardware, production and debug.