A remote control vehicle is defined as any mobile device that is controlled by a means that does not restrict its motion with an origin external to the device. This is often a radio control device, cable between control and vehicle, or an infrared controller. A remote control vehicle or RCV differs from a robot in that the RCV is always controlled by a human and takes no positive action autonomously.
Recently, Sony Ericsson released a remote control car that could be controlled by any Bluetooth cell phone. Radio is the most popular because it does not require the vehicle to be limited by the length of the cable or in a direct line of sight with the controller (as with the infrared set-up). Bluetooth is still too expensive and short range to be commercially viable.
Jason is the Woods Hole Oceanographic Institution's deep water explorer and can withstand depths of up to 6,500 feet. The Scorpio ROV is a British submersible that rescued the crew of the Russian AS-28 on August 7, 2005.
Remote control vehicles are used in law enforcement and military engagements for some of the same reasons. The exposure to hazards are mitigated to the person who operates the vehicle from a location of relative safety. Remote controlled vehicles are used by many police department bomb-squads to defuse or detonate explosives. See Dragon Runner, Military robot.
Unmanned Aerial Vehicles (UAVs) have undergone a dramatic evolution in capability in the past decade. Early UAV's were capable of reconnaissance missions alone and then only with a limited range. Current UAV's can hover around possible targets until they are positively identified before releasing their payload of weaponry. Backpack sized UAV's will provide ground troops with over the horizon surveillance capabilities.