RANGING METHOD, RANGING DEVICE, LOCATION DEVICE AND LOCATION METHOD
First Claim
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1. A ranging method, executed in a ranging device, comprising:
- obtaining a trip time of a received wireless signal, wherein the received wireless signal is a wireless signal from an object;
calculating a statistical value of a rising time of the received wireless signal;
correcting the trip time according to the statistical value of the rising time; and
estimating a distance between the object and the ranging device according to the corrected trip time.
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Abstract
A ranging method, executed in a ranging device, comprising steps of: obtaining a trip time of a received wireless signal, wherein the received wireless signal is a wireless signal from an object; calculating a statistical value of a rising time of the received wireless signal; correcting the trip time according to the statistical value of the rising time; and estimating a distance between the object and the ranging device according to the corrected trip time.
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Citations
16 Claims
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1. A ranging method, executed in a ranging device, comprising:
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obtaining a trip time of a received wireless signal, wherein the received wireless signal is a wireless signal from an object; calculating a statistical value of a rising time of the received wireless signal; correcting the trip time according to the statistical value of the rising time; and estimating a distance between the object and the ranging device according to the corrected trip time. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A location method, executed in a location device, comprising:
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obtaining distances between the location device and objects; and determining a location of the location device according to the distances; wherein each distance between the location device and the object is obtained by following steps; obtaining a trip time of a received wireless signal, wherein the received wireless signal is a wireless signal from an object; calculating a statistical value of a rising time of the received wireless signal; correcting the trip time according to the statistical value of the rising time; and estimating a distance between the object and the ranging device according to the corrected trip time. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A ranging device, comprising:
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a physic module, for receiving a wireless signal; a medium access control module, connected to the physic module; a controller, connected to the medium access control module; and a ranging module, connected between the medium access control module and the controller, for executing following steps; obtaining a trip time of a received wireless signal, wherein the received wireless signal is a wireless signal from an object; calculating a s statistical value of a rising time of the received wireless signal; correcting the trip time according to the statistical value of the rising time; and estimating a distance between the object and the ranging device according to the corrected trip time. - View Dependent Claims (14)
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15. A location device, comprising:
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a physic module, for receiving a wireless signal; a medium access control module, connected to the physic module; a controller, connected to the medium access control module; and a location module, connected between the medium access control module and the controller, for executing following steps; obtaining distances between the location device and objects; and determining a location of the location device according to the distances; wherein each distance between the location device and the object is obtained by following steps; obtaining a trip time of a received wireless signal, wherein the received wireless signal is a wireless signal from an object; calculating a statistical value of a rising time of the received wireless signal; correcting the trip time according to the statistical value of the rising time; and estimating a distance between the object and the ranging device according to the corrected trip time - View Dependent Claims (16)
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Specification