Absolute acceleration sensor for use within moving vehicles

摘要

A communication system comprises a pointable range finder to calculate a distance between the vehicle and an object, a recorder for recording a status of the vehicle and a control device. The range finder sends a signal to the control device corresponding to the vehicle's distance from the object and the control device operates the recorder in a manner dependent upon the signal from the range finder. The recorder is able to record the event if the vehicle is an unsafe distance from the object. The unsafe distance is able to be a programmed distance. In some embodiments, the unsafe distance increases with an increase in speed of the vehicle. In some embodiments, the unsafe distance is determined by a programmable constant. In these embodiments, the unsafe distance is determined according to a speed of the vehicle, the vehicle's distance from an object and a pre-defined safe zone threshold value.

主权项

1. A communication system for a vehicle comprising:
a. a pointable range finder to calculate a distance between the vehicle and an object; b. a warning device that generates an alert; and c. a control device coupled to the rangefinder and the warning device, wherein the range finder sends a signal to the control device corresponding to the vehicles distance from the object and the control device operates the warning device in a manner dependent upon the signal from the range finder,wherein the warning device issues an alert if the vehicle is an unsafe distance from the object, and wherein the unsafe distance is determined according to a constant value defined according to the speed of the vehicle and the distance between the vehicle and the object.