One way to solve this problem is by using electric beacons.

Control of home robots, using if necessary domotic electric beacon.

While dismantling the 102-year-old lighthouse to make way for an electric beacon, it caught fire and was destroyed.

Electric beacons also have been proposed for cheap robot navigational systems.

Electric beacon, a type of beacon used with direction finding equipment to find one's relative location.

Later a radar sensor, Marine and mobile radio telephony devices and an electric beacon were added on top of the lantern house.

Beacons come in the form of lighthouses on the coast, but also as electric beacons or other sea marks on the open sea.

In Dammbach is found the Electric beacon "PSA" of an international airway (aviation).

With its horn tank, scooped chrome fenders and front and rear electric beacons, it was a machine of make-believe - a rocket ship with tires.

They kept watching it, as they walked, and said nothing until they became certain that it was a powerful electric beacon blazing in the midst of the empty prairie.

In 1933 the Lighthouse Service decommissioned the Colchester Reef Lighthouse after the automatic electric beacon made the hand-operated system obsolete.

For example, the owners of a lightship - a vessel that carries an electric beacon as a kind of portable lighthouse - have wanted to sell it to the museum for some time.

In navigation, an electric beacon is a kind of beacon, a device which marks a fixed location and allows direction finding equipment to find relative bearing, the direction to the beacon.

The Wigwam is located in the wilds of northcentral Pennsylvania and once had an electric beacon for navigation of New York to San Francisco Air Mail flyers.