Car navigation apparatus capable of determining entry into parking area
First Claim
1. A vehicle navigation apparatus for determining a current position of a vehicle on map data based on at least one parameter of self-contained navigation parameters and GPS received navigation parameters, said car navigation apparatus comprising:
- a turn-round detecting part for detecting a turn-round motion of the vehicle to generate a turn-round signal;
an out-of-intersection detecting part for generating an out-of-intersection signal as long as the current position is out of an intersection; and
parking area entry determining part responsive to said turn-round signal generated when said out-of-intersection signal exists for determining that the vehicle has entered into a parking area to generate a parking area entry signal.
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Accused Products
Abstract
A car navigation apparatus for determining entry/exit of a vehicle into/from a parking area based on a running state of the vehicle without using a dedicated parking area database. Upon entry into a parking area, the entry is determined by totally checking the speed of the vehicle, the presence or absence of turn-round motion, an error in a forward and backward direction of the vehicle, estimated by map matching, the presence or absence of front and rear intersections, and the widths of intersecting roads. On the other hand, upon exit from a parking area, the exit is determined by totally judging the detected speed of the vehicle, the presence or absence of a straight running distance, the presence or absence of a nearby road extending in parallel with the course of the vehicle, and the width of the parallelly extending road.
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Citations
6 Claims
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1. A vehicle navigation apparatus for determining a current position of a vehicle on map data based on at least one parameter of self-contained navigation parameters and GPS received navigation parameters, said car navigation apparatus comprising:
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a turn-round detecting part for detecting a turn-round motion of the vehicle to generate a turn-round signal;
an out-of-intersection detecting part for generating an out-of-intersection signal as long as the current position is out of an intersection; and
parking area entry determining part responsive to said turn-round signal generated when said out-of-intersection signal exists for determining that the vehicle has entered into a parking area to generate a parking area entry signal. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification