| US 7,468,653 B2 | ||
| Vehicle alarm device, vehicle alarming method, and vehicle alarm generation program | ||
| Katsuhiko Takahashi, Tokyo (Japan) | ||
| Assigned to NEC Corporation, Tokyo (Japan) | ||
| Filed on Sep. 22, 2005, as Appl. No. 11/231,909. | ||
| Claims priority of application No. 2004-281363 (JP), filed on Sep. 28, 2004. | ||
| Prior Publication US 2006/0077050 A1, Apr. 13, 2006 | ||
| Int. Cl. B60Q 1/00 (2006.01) | ||
| U.S. Cl. 340—435 [340/436; 340/438; 340/441] | 25 Claims |
| 1. An alarm device for a vehicle comprising:
an object detection unit for detecting an object existing ahead of the vehicle, and measuring a distance to the object;
a speed measurement unit for measuring a speed of the vehicle;
an alarm speed database for holding alarm speed data expressing a nonlinear deceleration operation, substantially matching
the individual driving characteristics of the driver, with respect to the distance from the vehicle to the object, and the
speed of the vehicle;
an alarm determination unit for obtaining a speed corresponding to a distance to the object at a current time by referring
to the alarm speed data and setting it as an alarm speed value at the current time, and if the speed of the vehicle at the
current time exceeds the alarm speed value, determining a state as abnormal; and
alarm output unit for outputting an alarm when the alarm determination unit determines the state as abnormal.
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