Vehicular ranging system and method of operation
First Claim
Patent Images
1. A method of operating a vehicular object ranging system having a long-range sensor having a long-range field of view and a short-range sensor having a short-range field of view overlapping and exceeding said long-range field of view and having an angular resolution capability, said method comprising:
- operating the long-range sensor at a long-range sampling rate to generate at least one indication of one of an absence and a range of an object within said long-range field of view;
operating the short-range sensor at a short-range sampling rate to generate at least one indication of one of an absence and a range of an object within said short-range field of view;
varying the sampling rate of one of the long-range sensor and the short-range sensor based on the at least one indication provided by the other one of the long-range sensor and the short-range sensor;
evaluating the relative speed of an object in the long range field of view based on at least two indications of range of an object of the long-range sensor; and
comparing the relative speed of an object to an incoming speed threshold value;
wherein the step of varying includes reducing the sampling rate of the short range sensor based on determining that the relative speed of an object is below the incoming speed threshold value.
0 Assignments
0 Petitions
Accused Products
Abstract
A vehicular object ranging system having a long-range sensor having a long-range field of view and a short-range sensor having a short-range field of view overlapping and exceeding said long-range field of view and having an angular resolution capability. The sampling rate of one of the long-range sensor and short-range sensor can be varied depending of the signal provided by the other.
-
Citations
11 Claims
-
1. A method of operating a vehicular object ranging system having a long-range sensor having a long-range field of view and a short-range sensor having a short-range field of view overlapping and exceeding said long-range field of view and having an angular resolution capability, said method comprising:
-
operating the long-range sensor at a long-range sampling rate to generate at least one indication of one of an absence and a range of an object within said long-range field of view; operating the short-range sensor at a short-range sampling rate to generate at least one indication of one of an absence and a range of an object within said short-range field of view; varying the sampling rate of one of the long-range sensor and the short-range sensor based on the at least one indication provided by the other one of the long-range sensor and the short-range sensor; evaluating the relative speed of an object in the long range field of view based on at least two indications of range of an object of the long-range sensor; and comparing the relative speed of an object to an incoming speed threshold value; wherein the step of varying includes reducing the sampling rate of the short range sensor based on determining that the relative speed of an object is below the incoming speed threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification