Wireless Event-Based Kill-Switch for UAS

Authors: Jahir Uddin, Muntasir Ahad, Abdulla Hil Kafi

---

Overview

A wireless kill-switch for unmanned aerial systems (UAS), capable of:

• Controlling up to 16 drones (individually or all at once)
• The code represents only one for now.
• Manual, Terminate-All, Revive-All, Intelligent modes
• Secure communication with CRC & acknowledgement

---

Hardware

• Sender: ATmega328, HC12 (433 MHz), 7 toggle switches, LiPo battery
• Receiver: ATmega328, HC12, relay, ESC 5V input, sensors (LiDAR, gyro, temp, compass)

---

Circuit

---

Data Format

4 bits ID + 1 bit Ack + 1 bit Mode + 1 bit Data + 2 bits CRC

---

Results

• Range: stable at 127 m
• Kill-switch reduces ESC output current to 0 mA
• Please see the paper for the detailed results

---

Future Work

• Soft kill with parachute
• More than 16 drones
• ML for advanced intelligent mode

---

Citation

If you use this work, cite:

J. Uddin, M. Ahad and A. Hil Kafi, "Wireless event-based kill-switch for safe and autonomous UAS operation," 2023 International Conference on Electronics, Information, and Communication (ICEIC), Singapore, 2023, pp. 1-4, doi: 10.1109/ICEIC57457.2023.10049917. keywords: {Wireless communication;Authorization;Decision making;Behavioral sciences;Communication system security;Drones;Wireless Communication;Kill-switch;UAS;Drone;Intelligent;Circuit;Robotics;Algorithm},

---