摘要:
One or more markers are dispensed on ground, pavement or other surface in a dig area to be excavated or disturbed during excavation activities, so as to provide a visual indication of a presence or an absence of one or more underground utilities in the dig area. One or more signals are wirelessly transmitted in response to the dispensing of the one or more markers, wherein the signal(s) represent(s) first data relating to marking information that is provided by a tag reader and that is associated with the dispensed marker(s).
摘要:
A polarization independent energy exchanger transfers optical energy from a first coherent beam of optical energy to a second coherent beam of optical energy where the second beam is coherent with respect to the first beam, the second beam is counterpropagating with respect to the first beam, and the second beam possesses substantially the same polarization as the first beam. The energy exchanger includes a nonlinear optical uniaxial crystal having electro-optic coefficients r.sub.13 and r.sub.23 of equal magnitude and having a sufficiently large photorefractive charge density to achieve efficient contradirectional two-beam coupling, independent of the polarization states of the first and second beams. The crystal is oriented to receive the first and second beams therein such that the optic axis of the crystal is aligned parallel to the propagation directions of the first and second beams. The invention also envisions a polarization-independent backscattering phase conjugator for transferring optical energy from a first coherent beam of optical energy to a second coherent beam of optical energy where the second beam is the counterpropagating phase-conjugate reflection of the first beam. In this embodiment, a nonlinear optical uniaxial is provided with electro-optic coefficients r.sub.13 and r.sub. 23 of equal magnitude and having a sufficiently large photorefractive charge density to achieve efficient phase-conjugate backscattering, indepenGOVERNMENT RIGHTSThis invention was made with United States Government support under Contract No. F33615-86-C-5003 awarded by the United States Air Force. The United States Government has certain rights in this invention.
摘要:
A marking system may hold a container from which markers are dispensed to mark the presence or absence of an underground facility in a dig area. The container may identify a marker characteristic regarding the markers in the container. The marking system may receive activation of a trigger, dispense a marker from the container when the trigger is activated, and store the marker characteristic and time data when the trigger is activated. In other embodiments, the marking system may dispense a marker, determine location data and/or time data, and substantially simultaneously trigger the dispensing of the marker and logging of the location data and/or the time data. The location data identifies a geographic location where the marker is dispensed and the time data identifies the time when the marker is dispensed.
摘要:
A marking tool and a method for marking a presence or an absence of at least one underground facility is presented. The method includes dispensing a marker when a trigger of a marking tool is actuated. The method further includes identifying at least one characteristic associated with the marker or the dispensing of the marker. The method further includes storing the at least one characteristic associated with dispensing the marker when the actuation of the trigger is signaled.
摘要:
A marking system may hold a container from which markers are dispensed to mark the presence or absence of an underground facility in a dig area. The container may identify a marker characteristic regarding the markers in the container. The marking system may receive activation of a trigger, dispense a marker from the container when the trigger is activated, and store the marker characteristic and time data when the trigger is activated. In other embodiments, the marking system may dispense a marker, determine location data and/or time data, and substantially simultaneously trigger the dispensing of the marker and logging of the location data and/or the time data. The location data identifies a geographic location where the marker is dispensed and the time data identifies the time when the marker is dispensed.
摘要:
Marking information relating to the use of a marking system or a marking tool configured to dispense one or more markers to mark, on ground, pavement, or other surface, a location of an underground utility, is used to control a display device so as to visually display a dispensing of the one or more markers on an electronic representation of an area that is marked and includes the location of the underground utility.
摘要:
A marking system may hold a container from which markers are dispensed to mark the presence or absence of an underground facility in a dig area. The container may identify a marker characteristic regarding the markers in the container. The marking system may receive activation of a trigger, dispense a marker from the container when the trigger is activated, and store the marker characteristic and time data when the trigger is activated. In other embodiments, the marking system may dispense a marker, determine location data and/or time data, and substantially simultaneously trigger the dispensing of the marker and logging of the location data and/or the time data. The location data identifies a geographic location where the marker is dispensed and the time data identifies the time when the marker is dispensed.
摘要:
A marking system may hold a container from which markers are dispensed to mark the presence or absence of an underground facility in a dig area. The container may identify a marker characteristic regarding the markers in the container. The marking system may receive activation of a trigger, dispense a marker from the container when the trigger is activated, and store the marker characteristic and time data when the trigger is activated. In other embodiments, the marking system may dispense a marker, determine location data and/or time data, and substantially simultaneously trigger the dispensing of the marker and logging of the location data and/or the time data. The location data identifies a geographic location where the marker is dispensed and the time data identifies the time when the marker is dispensed.
摘要:
A marking system may hold a container from which markers are dispensed and identify a marker characteristic regarding the markers in the container. The marking system may also receive activation of a trigger, dispense a marker from the container when the trigger is activated, and store the marker characteristic and time data when the trigger is activated.
摘要:
A marking system may hold a container from which markers are dispensed to mark the presence or absence of an underground facility in a dig area. The container may identify a marker characteristic regarding the markers in the container. The marking system may receive activation of a trigger, dispense a marker from the container when the trigger is activated, and store the marker characteristic and time data when the trigger is activated. In other embodiments, the marking system may dispense a marker, determine location data and/or time data, and substantially simultaneously trigger the dispensing of the marker and logging of the location data and/or the time data. The location data identifies a geographic location where the marker is dispensed and the time data identifies the time when the marker is dispensed.