| Taxi Meter |
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Taximeters existed in ancient Rome , where they employed a mechanism that used the turning of the cart's Axle to release small balls. At the end of the trip, the passenger paid based on the number of released balls. The modern taximeter was invented by German Wilhelm Bruhn in 1891 , and the Daimler Victoria —the world's first meter-equipped (and gasoline-powered) taxicab—was built by Gottlieb Daimler in 1897 . Taximeters were originally mechanical and mounted outside the cab, above the driver's side front wheel. Meters were soon relocated inside the taxi, and in the 1980s electronic meters were introduced, doing away with the once-familiar ticking sound of the meter's timing mechanism. In some locations, taxicabs display a small illuminated sign indicating if they are free. In Argentina , this sign is called a "banderita" (little flag), a carryover term from the days of mechanical taximeters, in which a little flag was turned to wind up the mechanism. The flag would be hidden at the start of a trip and moved to the visible position at the end. Accessories and Features Taximeters can include several accessories, or act as components in larger dispatching/control systems. Features include:
Work cycle During normal operation, taximeters repeat cyclically through several stages:
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