Method and apparatus for estimating location of electronic device
First Claim
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1. A method in an electronic device, comprising:
- detecting a first location of the electronic device based on a first location detecting scheme;
estimating a second location of the electronic device based on a second location detecting scheme;
comparing the detected first location and the estimated second location;
if a difference between the detected first location and the estimated second location is larger than a difference threshold, correcting the detected first location into the estimated second location;
if the difference between the detected first location and the estimated second location is smaller than the difference threshold, determining whether a number of location measurements is smaller than a location measurements threshold;
in response to determining that the number of location measurements is smaller than the location measurements threshold, setting the detected first location as a current location of the electronic device; and
in response to determining that the number of location measurements is not smaller than the location measurements threshold, updating the current location using a filtering scheme,wherein the estimating the second location comprises estimating the second location based on a movement velocity of the electronic device, movement direction of the electronic device, and a previously determined location of the electronic device.
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Abstract
An electronic device apparatus and method are disclosed herein. The apparatus includes a processor. The processor may execute the method, which includes detecting a first location and a movement velocity of the electronic device, estimating a second location of the electronic device based on the detected movement velocity of the electronic device, comparing the first location of the electronic device and the estimated second location of the electronic device to determine a location measurement error, and correcting the detected first location of the electronic device based on the determined location measurement error.
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Citations
18 Claims
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1. A method in an electronic device, comprising:
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detecting a first location of the electronic device based on a first location detecting scheme; estimating a second location of the electronic device based on a second location detecting scheme; comparing the detected first location and the estimated second location; if a difference between the detected first location and the estimated second location is larger than a difference threshold, correcting the detected first location into the estimated second location; if the difference between the detected first location and the estimated second location is smaller than the difference threshold, determining whether a number of location measurements is smaller than a location measurements threshold; in response to determining that the number of location measurements is smaller than the location measurements threshold, setting the detected first location as a current location of the electronic device; and in response to determining that the number of location measurements is not smaller than the location measurements threshold, updating the current location using a filtering scheme, wherein the estimating the second location comprises estimating the second location based on a movement velocity of the electronic device, movement direction of the electronic device, and a previously determined location of the electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for estimating a location of an electronic device, comprising:
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a transceiver; and a processor configured to; detect a first location based on a first location detecting scheme, estimate a second location of the electronic device based on a second location detecting scheme, compare the detected first location and the estimated second location, if a difference between the detected first location and the estimated second location is larger than a difference threshold, correct the first detected location into the estimated second location considering the detected movement velocity, if the difference between the detected first location and the estimated second location is smaller than the difference threshold, determine whether a number of location measurements is smaller than a location measurements threshold, in response to determining that the number of location measurements is smaller than the location measurements threshold, set the detected first location as a current location of the electronic device, and in response to determining that the number of location measurements is not smaller than the location measurements threshold, update the current location of the electronic device using a filtering scheme, wherein the processor is configured to estimate the second location based on a movement velocity of the electronic device, movement direction of the electronic device, and a previously determined location of the electronic device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification