The Inertial Navigation System (INS) is an autonomous navigation device that provides information such as position, attitude, and speed of the carrier in a continuous and real-time manner. It is characterized by independent external information and freedom from climatic conditions and external external interference factors.
Originally used for aerospace, ground and marine military users, the inertial navigation and control system is the core technology of modern defense systems and is widely used in defense fields such as aircraft, missiles, ships, submarines, and tanks. With the reduction of cost and the increase of demand, inertial navigation technology has been extended to commercial fields such as geodesy, resource survey, geophysical survey, ocean exploration, railway, tunnel, etc., and is widely used in robots, video cameras, and children's toys.
The purpose and method of using inertial sensors in different fields are roughly the same, but the emphasis on device performance requirements is different. From the aspect of accuracy, the aerospace and navigation field has high precision requirements and long continuous working time. From the perspective of system life, spacecraft such as satellites and space stations have the highest requirements, and cannot be replaced or repaired after launching; The system life requirements are the shortest, but it may be necessary to meet the requirements of long-term readiness. Involved in military applications and other fields, the reliability requirements are high.
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