The Sentinel Automatic Trigger System (SATS-MINI) provides unparalleled ability to quickly and reliably detect a drone failure as well as the ability to guard against false triggers, making it safe to use with high energy deployment systems that use CO2 or pyro gas ejection. The SATS-MINI supports many configurable features to allow tight integration between the autopilot and the SATS-MINI system.
The SATS-MINI is currently available to customers who use Fruity Chutes parachute products.
At the core of the SATS-MINI is a 9-DoF (Degrees of Freedom) IMU employing sensor fusion with absolute orientation capability. The SATS-MINI can be calibrated at any arbitrary position in order to set the Z-axis orientation (primary axis). This means the device can be mounted at any position or orientation on the drone. The SATS-MINI can discern between panning rotation along the Z-axis (yaw) being normal and other rotation along the X and Y-axes being a dangerous rotation. Dangerous rotation detection is based on a rotation of a given number of degrees occurring within a given time period, typically 360 degrees or more in 2 seconds or less. The IMU can also detect a free fall condition by analyzing accelerometer data to trigger the parachute. The pre-set parameters for the SATS-MINI are optimized for fast detection, while allowing safe handling on the ground to avoid a false trigger. Even with the SATS-MINI armed, casual handling of the drone on the ground before flight will not accidentally trigger the parachute.
Cortex M0 core processor
9-DoF IMU with sensor fusion
Altimeter to support auto arm/safety
EEPROM and Flash memory for configuration and support black box system logging
Bluetooth LE to support mobile app for monitoring and configuration
Micro USB Connector for charging and configuration by Windows UI
Internal 1S / 500mAh LiPo Battery
Charge via USB or external input power
Internal LiPo power charge and management with 5V boost converter
Channel aggregate power out rated at up to 2.5 amps (12.5W), burst up to 3 amps (15W)
Automatic option so SATS can be turned on and off via the autopilot power control
4 Configurable IO Channels
Flexible signal pin configuration for PWM or DC levels
Two channels provide 5V power out, two channels provide external 5V power in
Expansion port to facilitate autopilot integration and support add-on modules
Single button operation
Beeper for audible feedback of button operation
Multi-color LED to display operational state
Three LED show power status
Two LED show Bluetooth LE status
The TBS NanoRX and the new Nano Diversity RX can be mounted directly to the SATS-MINI PCB to support an external rescue radio to trigger the parachute release
Case size 2.2”L x 1.46”W x 0.68” H
Weight 35 grams with battery
The SATS-MINI is available to Fruity Chutes customers.