Vehicular navigation based on site specific sensor quality data
First Claim
1. A method for determining a location of a vehicle, the method comprising:
- determining reception location data within a first cell of a work area for a vehicle, a location determining receiver providing the reception location data from reception of electromagnetic energy transmitted from terrestrial or satellite beacons;
estimating reception quality data for the corresponding reception location data for the first cell;
determining optical location data within a first cell of a work area for a vehicle;
estimating reception quality data for the corresponding reception location data for the first cell;
selecting at least one of the reception location data and the optical location data as refined location data associated with the first cell based on the estimated reception quality data and the estimated optical quality data, where the optical location data is selected as the refined location data if the estimated reception quality data and estimated optical quality data are not available for the work area and if the reception location data falls below a threshold level of reliability.
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Accused Products
Abstract
A method and system for determining a location of a vehicle, the method comprises determining reception location data within a first cell of a work area for a vehicle. A reception quality estimator estimates reception quality data for the corresponding reception location data for the first cell. Optical location data is determined within a first cell of a work area for a vehicle. An optical quality estimator estimates optical quality data for the corresponding optical location data for the first cell. A data processor selects at least one of the reception location data and the optical location data as refined location data associated with the first cell based on the estimated reception quality data and estimated optical quality data.
75 Citations
25 Claims
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1. A method for determining a location of a vehicle, the method comprising:
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determining reception location data within a first cell of a work area for a vehicle, a location determining receiver providing the reception location data from reception of electromagnetic energy transmitted from terrestrial or satellite beacons; estimating reception quality data for the corresponding reception location data for the first cell; determining optical location data within a first cell of a work area for a vehicle; estimating reception quality data for the corresponding reception location data for the first cell; selecting at least one of the reception location data and the optical location data as refined location data associated with the first cell based on the estimated reception quality data and the estimated optical quality data, where the optical location data is selected as the refined location data if the estimated reception quality data and estimated optical quality data are not available for the work area and if the reception location data falls below a threshold level of reliability. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for determining a location of a vehicle, the method comprising:
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determining reception location data within a first cell of a work area for a vehicle, a location determining receiver providing the reception location data from reception of electromagnetic energy transmitted from terrestrial or satellite beacons; estimating reception quality data for the corresponding reception location data for the first cell, the reception quality data replying upon at least one of satellite data and received signal data; determining optical location data within a first cell of a work area for a vehicle; estimating optical quality data for the corresponding optical location data for the first cell; determining dead-reckoning location data within a first cell of a work area for a vehicle; determining dead-reckoning location data within a first cell of a work area for a vehicle; estimating dead-reckoning quality data for the corresponding dead-reckoning location data for the first cell; and selecting at least one of the reception location data, the optical location data, and dead-reckoning location data as refined location data associated with the first cell based on the estimated reception quality data, estimated optical quality data, and estimated dead-reckoning quality data, wherein the dead-reckoning location data is selected as the refined location data, if the estimated reception quality data and estimated optical quality data are not available for the work area and if the reception location data and optical location data fall below their respective threshold levels of reliability. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for determining a location of a vehicle, the system comprising:
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a location determining receiver for determining reception location data within a first cell of a work area for a vehicle, the location determining receiver arranged to output the reception location data from reception of electromagnetic energy transmitted from terrestrial or satellite beacons; a reception quality estimator for estimating reception quality data for the corresponding reception location data for the first cell, the reception quality data relying upon at least one of satellite data and received signal data; an optical location determining receiver for determining optical location data within a first cell of a work area for a vehicle; an optical quality estimator for estimating optical quality data for the corresponding optical location data for the first cell; a dead-reckoning system for determining dead-reckoning location data within a first cell of a work area for a vehicle; a dead-reckoning quality estimator for estimating dead-reckoning quality data for the corresponding dead-reckoning location data for the first cell; a data processor for selecting at least one of the reception location data, the optical location data, and dead-reckoning location data as refined location data associated with the first cell based on the estimated reception quality data, estimated optical quality data, and estimated dead-reckoning quality data. - View Dependent Claims (22, 23, 24, 25)
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Specification