A new ultra-compact navigation system NV-micro for small-sized drones, which is resistant to temperature changes, has been created in Russia. It includes a temperature stabilization system for a microelectromechanical system of sensors, which can maintain the accuracy of their readings in the range from -50 to +70 degrees Celsius.
The development of the University of MISIS and specialists of Integral LLC, a resident of Technopark Slava JSC, created with the support of the Department of Entrepreneurship and Innovative Development of the City of Moscow, can be used for mini-drones in agriculture and monitoring of ground infrastructure.
The NV-micro navigation system is an ultracompact navigation device based on MEMS sensors for determining the angles of roll, pitch and heading angle of an object. If there is a signal from an external receiver of satellite navigation systems, NV-micro additionally calculates the linear velocity of the object, its coordinates and its altitude.
When receiving a signal from a satellite, a drone with NV-micro uses a multi-stage system for filtering and eliminating internal errors. This allows it to provide optimal accuracy and minimal delays in calculating parameters.
NV-micro also allows the drone to adjust the output parameters from an external magnetometer, air signal system or external distance sensor. This allows to increase the accuracy of UAV navigation and maintain the calculation of its coordinates, provided that the signal from the satellite suddenly disappears.
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