Research on greenhouse fire positioning technology based on wireless sensor network
Hua Xiao-hui · Jisuanji gongcheng yu sheji · 2013
By comparison of several distance measurements,such as TOA,TDOA and AOA,a new positioning technology is proposed,it is called PN code ranging positioning technology.By analyzing the advantages and disadvantages of various positioning technologies,PN code ranging positioning technology is more suitable for oil fire positioning system.Based on the PN code ranging positioning,the structure of the oil fires in the positioning system is designed.Then,based on Matlab instruments,the mathematical model used in the fire positioning is set up.Finally,through Matlab simulation,every possible factor is consi-dered.After the input environment and the input signal are simulated,the output of the system is analyzed,with the correctness and feasibility of the design being tested.