BaseCam GPS IMU v.1.2

GNSS-aided compact AHRS/IMU module developed by BaseCam Electronics company to work as an external IMU sensor with all versions of SimpleBGC32 controllers. It has much better precision compared to the internal IMU sensor, which allows improving precision of stabilization in demanding applications, where the regular IMU sensor does not work reliably.

How it works: GPS IMU connects to any free UART port of the main controller, or common CAN bus*, and provides precise attitude and heading information, that can be used as a reference to correct the internal IMU sensor, solving its common problems: gyroscope drift, an affection of linear accelerations, drift caused by the changes in environmental temperature.

SimpleBGC32 system supports several mounting positions of external IMU sensor: on the stabilized platform, on the gimbal's arms, or on the frame. It allows choosing the most optimal position for a normal work of magnetometer and GNSS receiver, which are very sensitive to the environment.

With the flexible well-documented serial API this module can be used in a wide range of third-party applications, where precise AHRS/IMU functionality is needed (like robots, drones, survey, platform stabilization, and so on).

* CAN connection option will be implemented in the future with the firmware update. With this option, GPS IMU may be used as a main IMU sensor in the SBGC32 gimbal controllers having CAN bus support

Features of the Basecam GPS IMU v.1.2 Module

• Integrated GNSS-antenna for a compact size, with the option of connecting an external GNSS receiver by the UART interface;
• Full set of navigation sensors: 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer, barometer (altimeter), GNSS receiver (concurrent Galileo, GLONASS, GPS / QZSS);
• Powerful MCU running UKF for a sensor fusion at high rates;
• Thermal stabilization helps to keep high precision with the change of temperatures;
• Interfaces: UART, USB, CAN, I2C^;
• Onboard SD card for high-rate data logging with actual date-time information and flexible set of data to log, including logging of external data provided by the host controller;
• Backup rechargeable battery for GNSS hot start and real-time clock;
• Open serial API protocol allows using this sensor in third-party applications;
• The functionality will be constantly improved with the firmware updates;
• Cost-effective solution compared to other GNSS-enabled solutions on the market;

Full factory calibrations are made for the gyroscope and accelerometer. An easy-to-use magnetometer calibration procedure allows to get maximum performance by calibrating the magnetometer sensor after installation, to take into account a magnetic environment (soft- and hard-iron cancellation).

The advantage in version 1.2 compared to 1.0