I am taking part in a robotics competition, where the challenge is to create a pair of robots which successfully navigate a series of obstacles. However, the rules state that of the two robots, only one must have a driving actuator. The other must somehow be moved by the other robot, WITHOUT PHYSICAL CONTACT.
I could think of either having sails on the non-driving robot, and moving it with fans on the driving one OR electromangnets on the driving one and permanent magnets with the opposite polarity on the non-driving one. However the problem with both is that efficiency falls off drastically with distance. Thus, I am looking for possible ways to overcome this problem. Thanks :)
Also, the driving robot has a cable power supply, while the non-driving one may only have batteries.