DETERMINATION OF GPS COMPLIANCE MALFUNCTIONS
First Claim
1. A method of determining a positioning system malfunction for a commercial motor vehicle (CMV), the method comprising:
- detecting a positioning system fault event using a base unit;
determining an accumulated fault time using a portable device;
storing valid location information indicative of a last valid location of the CMV as determined by the positioning system;
storing data relating to the positioning system fault event on the base unit until the base unit is coupled to the portable device;
estimating, using a processor, an uncertainty distance which is a distance since the last valid location as indicated by the valid location information;
determining a positioning system malfunction based on the positioning system fault event, the accumulated fault time, and the uncertainty distance; and
recording the positioning system malfunction.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for the determination and recording of positioning system compliance malfunctions for commercial motor vehicles (CMV). One method includes detecting and accumulating the fault time when positioning system information is invalid or unavailable. Additionally, when positioning system information is invalid or unavailable, the processor estimates an uncertainty distance that the vehicle has travelled since the last valid location. The system then determines and records positioning system malfunction based on positioning system fault events, the accumulated fault time, and the uncertainty distance. The system stores valid location information and data relating to the positioning system fault event on the base unit until the base unit is coupled to the portable device.
10 Citations
22 Claims
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1. A method of determining a positioning system malfunction for a commercial motor vehicle (CMV), the method comprising:
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detecting a positioning system fault event using a base unit; determining an accumulated fault time using a portable device; storing valid location information indicative of a last valid location of the CMV as determined by the positioning system; storing data relating to the positioning system fault event on the base unit until the base unit is coupled to the portable device; estimating, using a processor, an uncertainty distance which is a distance since the last valid location as indicated by the valid location information; determining a positioning system malfunction based on the positioning system fault event, the accumulated fault time, and the uncertainty distance; and recording the positioning system malfunction. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system configured to determine a positioning system malfunction for a commercial motor vehicle (CMV), the system comprising:
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a base unit installed on the vehicle; at least one processor; a portable device; at least one physical computer storage medium comprising stored executable instructions that when executed by the at least one processor cause the at least one processor to perform the following operations; detecting a positioning system fault event using the base unit; determining an accumulated fault time using the portable device; storing valid location information indicative of a last valid location of the CMV as determined by the positioning system; storing data relating to the positioning system fault event on the base unit until the base unit is coupled to the portable device; estimating, using a processor, an uncertainty distance which is a distance since the last valid location as indicated by the valid location information; determining a positioning system malfunction based on the positioning system fault event, the accumulated fault time, and the uncertainty distance; and recording the positioning system malfunction. - View Dependent Claims (9, 10, 11, 12, 14)
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13. The system of Clam 11, wherein the at least one physical computer storage medium includes instructions that, when executed by the at least one processor, estimate the uncertainty distance until there is valid positioning system location information.
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15. At least one physical computer storage medium comprising stored instructions which when executed determine a positioning system malfunction for a commercial motor vehicle (CMV), the at least one physical storage medium comprising instructions which, when executed by a processor, perform the following operations:
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detecting a positioning system fault event using a base unit; determining an accumulated fault time using a portable device; storing valid location information indicative of a last valid location of the CMV as determined by the positioning system; storing data relating to the positioning system fault event on the base unit until the base unit is coupled to the portable device; estimating, using a processor, an uncertainty distance which is a distance since the last valid location as indicated by the valid location information; determining a positioning system malfunction based on the positioning system fault event, the accumulated fault time, and the uncertainty distance; and recording the positioning system malfunction. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification