The Research On The Monitoring And Transferring Ecological Environmental Equipment Based On 3G Network

The equipment designed in the thesis is a monitoring and transferring ecological environmental equipment that can collect and transfer the environmental data automatically.Three layers are consisted in the system.They are the bottom layer based on wireless sensing,the middle layer based on imbedded system on ARM9 and the top layer based on general PC as the data center.The bottom layer uses SCM 51 to control the collecting of the data and the nRF2401 block to transfer wirelessly.The middle layer receives the date from the bottom layer and does the method of average.Then it transfers the result via 3G wireless module to the top layer,the remote data center on general PC.The top layer receives the data from the middle layer.For there are a few wireless sensors in the bottom layer collecting data at the same time,and the result is the average of the data,we get rid of the problem caused by choosing the data from one point as the representative parameter of the area.By choosing some sample points to collect data form a certain area and comparing them with their average, we can find out that the average data is more close to the real situation of the environment and more precise.