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Southwest area of china is the zone of the transmission lines which often happens icing disaster. It is also an earthquake-prone area, also influenced by the interaction between ice and earthquake. This article uses the finite element method (fem), establishing three-dimensional model for steel towers in southwest china, to analyze the dynamic performance of the ice condition and the analysis of seismic action. The aim is to get internal forces for steel towers under the action of earthquake and deformation law along with the change of ice thickness.

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The mathematical model of the magnetic field distribution of the magnetic dipole antenna is established. The simulation process is realized by using the Matlab software, which provides a preliminary theoretical basis for the transmitting and receiving positioning of the magnetic antenna. The magnetic field distribution and strength of the magnetic dipole antenna are measured and the simulation results are compared with the theoretical model. The frequency and power of the magnetic dipole antenna are completed by the hardware platform of physical experiment hardware. Parameter optimization design. On this basis, the principle prototype development of pipeline robot positioning system is completed.