Disaster Rescue Robot Swarm RescueSwarm Deployed in Japan: Autonomous Search and Location of Survivors in Earthquake Rubble

Japans Fire and Disaster Management Agency and Tokyo Institute of Technology today officially deployed RescueSwarm at the Tokyo Fire Department. RescueSwarm consists of 50 palm-sized micro-robots, each weighing approximately 300 grams, equipped with thermal imaging cameras, CO2 sensors, microphones, and inertial navigation modules.

Swarm Collaboration Mechanism

RescueSwarms core design philosophy is no leaders, only collaboration. Each robot is fully autonomous with no central control system. When deployed into rubble, 50 robots automatically form an ad-hoc mesh network through short-range wireless communication (range approximately 10 meters), sharing explored area maps and sensor data.

Project lead Professor Kentaro Takahashi explained the swarm algorithm mimics ant foraging pheromone mechanisms. When a robot detects suspected signs of life, it broadcasts an attraction signal through the communication network, guiding nearby robots to converge on the area for more precise detection.

Each robot uses a hybrid drive design: wheeled movement on flat surfaces, switching to serpentine crawling for climbing or navigating narrow gaps. Robots can pass through gaps as narrow as 5 centimeters and climb 45-degree slopes.

Test Performance

In a simulated earthquake rubble test, RescueSwarm located all 15 simulated survivors in an average of 23 minutes with 100% success rate. The fastest single detection took just 4 minutes. Traditional search dogs averaged 45 minutes in the same environment with blind spots in complex gap areas.

During testing, 3 robots lost mobility after being trapped by debris, but the distributed swarm architecture means individual robot losses dont affect overall mission capability. The team is developing RescueSwarm 2 with 4-hour battery life and a small mechanical arm for delivering water and first aid to trapped survivors, expected to be completed in 2031.