Installation of optical sensors for use in traffic monitoring
AssigneeXerox Corporation
InventorsAjay Raghavan, Peter Kiesel, Hong Yu, Kyle Arakaki, Qiushu Chen, Jin Yan, Colin Campbell
Life of this patent
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Abstract
One or more spacers for installing an optical cable are disposed in a trench that extends along an axis. The optical cable includes one or more optical sensors. Each spacer includes a base configured to rest in a bottom of the trench. A first arm extends from the base. The first arm is adjacent to a first wall of the trench. An opposing second arm extends from the base. The second arm is adjacent to an opposing second wall of the trench. The optical cable is configured to extend along the axis.
Claims24
An apparatus, comprising:
- two or more spaced-apart spacers for installing an optical cable in a trench extending along an axis, the optical cable comprising one or more optical sensors, each spacer comprising:
- a base configured to rest in a bottom of the trench;
- a first arm extending from the base, the first arm adjacent to a first wall of the trench;
- an opposing second arm extending from the base, the second arm adjacent to an opposing second wall of the trench, the optical cable configured to extend along the axis, wherein the optical sensors are located away from the two or more spacers such that light input to the one or more optical sensors experiences a wavelength shift due to traffic moving over the optical cable;
- and
- a support material configured to extend between the first arm and the second arm along the axis.
An apparatus, comprising:
- one or more spacers for installing an optical cable in a trench extending along an axis, the optical cable comprising one or more optical sensors, each spacer comprising:
- a base configured to rest in a bottom of the trench;
- a first arm extending from the base, the first arm adjacent to a first wall of the trench;
- and
- an opposing second arm extending from the base, the second arm adjacent to an opposing second wall of the trench, the optical cable configured to extend along the axis, wherein each spacer of the one or more spacers is a first stackable spacer and further comprising a second stackable spacer disposed such that the base of the second stackable spacer is opposite that of the base of the first stackable spacer.
A system, comprising:
- a plurality of spacer groups installed in a plurality of trenches, each spacer group comprising spaced-apart spacers configured to support an optical cable in a respective trench that extends along an axis, the optical cable comprising one or more optical sensors, each spacer within each spacer group comprising:
- a base configured to rest in a bottom of the trench;
- a first arm extending from the base, the first arm adjacent to a first wall of the trench;
- an opposing second arm extending from the base, the second arm adjacent to an opposing second wall of the trench, the optical cable configured to extend along the axis, wherein the optical sensors are located away from the two or more spacers such that light input to the one or more optical sensors experiences a wavelength shift due to traffic moving over the optical cable;
- and
- a support material configured to extend between the first arm and the second arm along the axis.
Dependencies are inferred from the claim text.