Microrobots have learned to coordinate using sound
Researchers have developed a model of microrobots that use sound waves to coordinate in swarms and display collective behavior, much like schools of fish or flocks of birds. Such a system could be used for complex tasks, including exploring hazardous areas and delivering medications.
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An international team of scientists led by Igor Aronson from Pennsylvania State University has developed a computer model of microrobots that coordinate in swarms using sound waves.
Each microrobot in the model is equipped with an acoustic emitter and detector. Simulations showed that acoustic communication enables the robots to work together harmoniously and adapt their formation to the surrounding environment.
In the model, swarms of microrobots can perform tasks such as exploring disaster zones, cleaning polluted areas, and delivering medicine inside the body. Even when the swarm splits, the system remains operational.
This research is the first to demonstrate the use of sound waves to control microrobots. Previously, chemical signals were used for this purpose.
Sound waves travel faster and farther with minimal energy loss, allowing for simpler robot designs.
The study was published on August 12 in the journal Physical Review X and was funded by the John Templeton Foundation.