Known military robots, looking for mines. For example, the Talon robot is involved in the detection and clearance of explosive devices.
But while the robot was not looking for treasures. And one samodelkin (Gareth, Gareth) constructed a robot – metal detector Thunderbird 007 (TB-007). The robot can scan the beach in search of treasure – can detect coins, gold rings and earrings, but may also find the cover from the beer bottles.
The wheeled robot TB-007 has a simple detector metal detecting (2 coils wound on ferrite cores), wireless camera, laser pointer. Well, the owner can observe the work of the robot from a distance. After all, when the metal object is detected, the robot will give a signal to the host.