Significant progress has been made in the field of inertial technology in China - Micro Magic Inc recently announced that its high-performance inertial navigation system IF3700 has been successfully applied to the industry-leading "Tianhang Intelligence" new generation high-end industrial drone platform. This cooperation marks a comprehensive breakthrough in key indicators such as adaptability to complex environments and long-term stability for domestically produced high-precision inertial sensors, providing a core guarantee for reliable operation of industrial drones in challenging scenarios.
In professional scenarios such as power inspection, high-altitude surveying, and emergency reconnaissance, industrial drones often face severe challenges such as strong electromagnetic interference, severe temperature changes, and continuous body vibration. The performance fluctuations of traditional sensors can easily lead to positioning drift and attitude misalignment, directly affecting operational safety and data quality. The technical director of "Tianhang Intelligence" said, "We have been looking for a sensor that can provide stable and accurate heading and attitude measurement throughout the entire mission cycle, and the appearance of IF3700 is timely."
The successful application of IF3700 is attributed to its outstanding performance in multiple key performance parameters, which directly determine the reliability of drone navigation systems under extreme conditions.
The IF3700 adopts a high-precision closed-loop fiber optic gyroscope with a full temperature of 0.01°/h and a 20 μg high-precision quartz accelerometer, with autonomous compass function. It can still achieve attitude accuracy of ≤ 0.003° and heading maintenance accuracy of ≤ 0.01°/h in pure inertia mode, demonstrating strong environmental adaptability. At the same time, the system supports inertial/satellite integrated navigation mode, with a position accuracy of centimeter level (RTK mode) and a velocity accuracy of better than 0.02m/s, effectively improving the operational capability of unmanned aerial vehicles in GNSS signal interference prone areas such as urban canyons and forest areas. In addition, IF3700 has rich interface configuration and high data update rate (up to 800Hz), which can flexibly interface with flight control, load and ground station systems, meeting the strict requirements of real-time and integration for industrial grade drones.
The "Tianhang Intelligent" drone equipped with the IF3700 inertial navigation system has been validated for its value in multiple harsh scenarios. In surveying missions over complex plateau terrain, even with weak GPS signals, the IF3700 maintained centimeter-level flight path accuracy through its stable system output, successfully accomplishing high-precision 3D modeling. During high-voltage live-line inspection tasks, even when operating in strong electromagnetic environments, the IF3700 system remained completely immune to interference, delivering robust and reliable navigation and attitude data that formed the core foundation for autonomous obstacle avoidance and precise hovering. In emergency supply delivery operations, despite enduring substantial temperature variations during long-endurance, day-and-night missions, the IF3700 system demonstrated exceptional temperature stability, ensuring no degradation in navigation accuracy throughout the entire process.
Micro Magic's Product Manager stated: "The success of the IF3700 system in the high-end industrial drone sector is just the beginning. It demonstrates that domestic core sensors are fully capable of supporting the development needs of intelligent equipment. We will continue to deepen our expertise in inertial technology, providing more unmanned platforms with a precise and reliable 'Perception Heart'."
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