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The trajectory correction capability of the Simple guided munitions is directly affected by measurement accuracy of attitude angle. A gesture detection method based on geomagnetic gyro combination is proposed in this paper in order to detect the projectile flight attitude, The yaw angle of the projectile is solved by using runge-kutta algorithm with angle information of MEMS gyro. Then roll angle and pitch angle of the projectile is solved by magnetic field component of the three-axis magnetic sensor. Finally, the whole attitude detection system is installed in three-axis non-magnetic turntable to have a performance test. Experimental results show that the attitude solution results error is small. Nearby blind area, the roll angle error reduced to 5° and the pitch angle error reduced to 4°. In other locations, the roll angle error reduced to 2° and the pitch angle error reduce to 1°. The measurement accuracy increased nearly tenfold, can satisfy the trajectory correction demand of simple guidance ammunition.

Important load users are the lifeline of urban development, and their energy security system is not yet complete. According to the existing power load classification guarantee principle, the comprehensive energy load classification and guarantee measures of important users are discussed. At the same time, it analyzes the characteristics of existing security resources, selects the semiconductor manufacturing industry as the application scenario, and explores more possibilities for flexible configuration of security resources for users with important loads. Finally, the distributed energy system is proposed as a security resource for semiconductor companies, and it is used as a backup with the mains, replacing conventional diesel generating sets, and switching from cold standby to hot standby. This will reduce the initial investment in enterprise construction, improve the utilization of security resources, and the reliability of energy supply for important load users.