Sensor installation monitoring
First Claim
1. A method for surveying sensor locations on a physical platform, the method comprising:
- under control of at least one hardware processor and memory configured with executable instructions;
receiving signals from a temporary navigation sensor and a group of fixed navigation sensors, the temporary navigation sensor being temporarily placed on the physical platform, the fixed navigation sensors being installed on the physical platform;
using the signals to calculate an estimated baseline vector between the temporary navigation sensor and each fixed navigation sensor in the group of fixed navigation sensors;
successively calculating a refined baseline vector between the temporary navigation sensor and each fixed navigation sensor by fixing carrier phase integer ambiguities that are variables used in the estimation of the baseline vector; and
generating a final survey vector between the temporary navigation sensor and each of the fixed navigation sensors using the refined baseline vector.
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Accused Products
Abstract
Technology for surveying sensor locations on a physical platform is described. An estimated baseline vector can be calculated between a temporary navigation sensor and each fixed navigation sensor in a group of fixed navigation sensors. The temporary navigation sensor can be temporarily placed on the physical platform. The fixed navigation sensors can be installed on the physical platform. A refined baseline vector between the temporary navigation sensor and each fixed navigation sensor can be successively calculated by fixing carrier phase integer ambiguities that are variables used in the estimation of the baseline vector. A final survey distance between the temporary navigation sensor and each of the fixed navigation sensors can be generated using the refined baseline vector.
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Citations
38 Claims
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1. A method for surveying sensor locations on a physical platform, the method comprising:
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under control of at least one hardware processor and memory configured with executable instructions; receiving signals from a temporary navigation sensor and a group of fixed navigation sensors, the temporary navigation sensor being temporarily placed on the physical platform, the fixed navigation sensors being installed on the physical platform; using the signals to calculate an estimated baseline vector between the temporary navigation sensor and each fixed navigation sensor in the group of fixed navigation sensors; successively calculating a refined baseline vector between the temporary navigation sensor and each fixed navigation sensor by fixing carrier phase integer ambiguities that are variables used in the estimation of the baseline vector; and generating a final survey vector between the temporary navigation sensor and each of the fixed navigation sensors using the refined baseline vector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for verifying survey results for sensors on a physical platform, the method comprising:
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under control of at least one hardware processor and memory configured with executable instructions; receiving signals from the sensors on the physical platform, the sensors being mounted on the physical platform; using the signals to compute an estimated baseline vector between each pair of sensors on the physical platform; calculating a refined baseline vector between the pair of sensors by correcting carrier phase integer ambiguities in the estimated baseline vector; and comparing the refined baseline vector to a previously surveyed baseline vector for the pair of sensors, the comparison producing a survey error of the refined baseline vector with respect to the previously surveyed baseline vector. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for monitoring flexure of a physical platform, the method comprising:
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under control of at least one hardware processor and memory configured with executable instructions; receiving signals from global positioning system (GPS) sensors on the physical platform, the GPS sensors being mounted on the physical platform; using the signals to compute an estimated baseline vector between each pair of the GPS sensors on the physical platform; calculating a refined baseline vector between each pair of the GPS sensors by correcting carrier phase integer ambiguities in the estimated baseline vector, the carrier phase integer ambiguities being fixed using an external source; and comparing the refined baseline vector to a previously surveyed baseline vector for each pair of the GPS sensors, the comparison producing a time-dependent flexure motion vector between each pair of the GPS sensors. - View Dependent Claims (32, 33, 34, 35)
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36. A method for monitoring small relative movement within an otherwise rigid structure or between otherwise relatively stationary structures, the method comprising:
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under control of at least one hardware processor and memory configured with executable instructions; receiving signals from pairs of sensors installed at various surveyed monitoring points on one or more structures; computing surveyed baseline vector between the pairs of sensors using the signals received from the pairs of sensors; using the surveyed baseline vector between the pairs of sensors on the one or more structures; calculating a refined baseline vector between the pair of sensors by correcting carrier phase integer ambiguities in an estimation of baseline vector, the carrier phase integer ambiguities being fixed at an shortest fixable wavelength using a subset of fixed navigation sensors installed on the one or more structures; and comparing the refined baseline vector to a previously surveyed baseline vector for the pair of sensors, the comparison producing a time-dependent relative motion vector between the two installation points associated with the pair of sensors. - View Dependent Claims (37, 38)
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Specification