The C9000 Series High-Precision Compass Empowers UAV Navigation Across the Skies

In the core field of autonomous navigation for unmanned aerial vehicles, the accuracy, reliability, and stability of direction perception directly determine the success or failure of the mission. The C9000 series high-precision six axis full attitude electronic compass launched by Micro-Magic Inc provides accurate attitude perception solutions for unmanned aerial vehicles and aircraft in all weather and terrain conditions, with military grade technical standards and industrial grade design, endowing devices with the intelligent eye of "perception direction".

The C9000 series is composed of industrial grade microcontrollers with high reliability and strong anti-interference ability, high-precision tilt sensors, three-axis flux gate sensors with integrated patented technology, and driver chips. The self-developed hard and soft magnetic calibration algorithms enable the compass to eliminate the influence of magnetic fields through calibration algorithms even in environments with magnetic field interference. By integrating magnetometers for geomagnetic field measurement and accelerometers for dynamic compensation, sub-degree heading accuracy can be achieved in complex electromagnetic environments, solving the problem of attitude reference when GPS signals are obstructed. In autonomous flight of unmanned aerial vehicles, the C9000 series six axis electronic compass can correct heading drift caused by magnetic interference in real time, and use a patented tilt compensation algorithm to compensate for large range of tilt angles, ensuring flight stability and providing real-time high-precision navigation information even in extremely harsh environments.

The advantages of the C9000 series high-precision compass are mainly reflected in the following aspects:

1.       Ultra high precision navigation capability

By capturing the horizontal component of the Earth's magnetic field through a magnetic sensor and combining it with a patented tilt compensation algorithm, heading compensation is applied to a large range of tilt angles, achieving a heading accuracy of 0.2° RMS (pitch angle <85°) and a resolution of 0.1°. In attitude tilt perception measurement, the pitch/roll accuracy reaches 0.01° (small tilt angle), supporting full attitude coverage of ± 90°. Eliminating heading angle drift caused by magnetic interference through bias tracking algorithm, and real-time solving complex motion attitude through extended Kalman filtering to ensure the stability of dynamic flight.

2.       Breakthrough in anti-interference technology

The three-axis flux gate sensor with integrated patented technology, combined with hard/soft magnetic adaptive calibration function, automatically adapts to changes in the surrounding magnetic field environment during operation. According to pre-set algorithms, the magnetic field data collected by the sensor is analyzed and processed, and the measurement parameters are automatically adjusted to eliminate the influence of magnetic field changes, thereby ensuring that the output heading information is always accurate and reliable.

3.       Industrial grade robust design

The C9000 series high-precision compass can operate in a wide temperature range, ensuring stable operation at extreme temperatures ranging from -40℃ to +85℃. The C9000 series has high resistance to vibration and impact, with a mechanical impact protection capacity of 3000g, and has passed the rigorous test of GJB150 military environmental test (high temperature/low temperature/rain/sand/vibration). Supports IP67 protection level (customizable IP68), fearless of wind, rain, sand and dust.

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