Indoor positioning method and device
First Claim
1. An indoor positioning method, comprising:
- obtaining, by a terminal, a first location of the terminal at a first moment;
obtaining, by the terminal, a plurality of predicted locations corresponding to the first location;
for each predicted location of the plurality of predicted locations, obtaining, by the terminal according to historical movement information of the terminal, a first probability corresponding to the predicted location, wherein the first probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at a second moment and the first probability is obtained according to the historical movement information of the terminal, and the second moment is later than the first moment;
obtaining, by the terminal, signal strength of at least one wireless signal received by the terminal at the second moment;
obtaining, by the terminal according to the signal strength of the at least one wireless signal, a second probability corresponding to the predicted location;
wherein the second probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at the second moment and the second probability is obtained according to the signal strength of the at least one wireless signal;
obtaining, by the terminal according to the first probability and the second probability that are corresponding to the predicted location, a third probability corresponding to the predicted location; and
determining, by the terminal, a predicted location with a highest third probability in the plurality of predicted locations as a second location of the terminal at the second moment.
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Abstract
An indoor positioning method includes: obtaining, by a terminal, all predicted locations of a current location, predicting, according to historical movement information of the terminal, a first probability that the terminal passes through each predicted location at a next moment, and obtaining, based on strength of a received signal, a second probability that the terminal passes through each predicted location at the next moment; and generating a corresponding third probability according to the first probability and the second probability that are corresponding to each predicted location, and determining a predicted location point with a highest third probability as a location of the terminal at a second moment.
10 Citations
20 Claims
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1. An indoor positioning method, comprising:
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obtaining, by a terminal, a first location of the terminal at a first moment; obtaining, by the terminal, a plurality of predicted locations corresponding to the first location; for each predicted location of the plurality of predicted locations, obtaining, by the terminal according to historical movement information of the terminal, a first probability corresponding to the predicted location, wherein the first probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at a second moment and the first probability is obtained according to the historical movement information of the terminal, and the second moment is later than the first moment; obtaining, by the terminal, signal strength of at least one wireless signal received by the terminal at the second moment; obtaining, by the terminal according to the signal strength of the at least one wireless signal, a second probability corresponding to the predicted location;
wherein the second probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at the second moment and the second probability is obtained according to the signal strength of the at least one wireless signal;obtaining, by the terminal according to the first probability and the second probability that are corresponding to the predicted location, a third probability corresponding to the predicted location; and determining, by the terminal, a predicted location with a highest third probability in the plurality of predicted locations as a second location of the terminal at the second moment. - View Dependent Claims (2, 3, 4, 5, 6, 12, 13)
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7. A terminal, comprising:
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a transceiver configured to send and receive a wireless signal; a sensor, configured to obtain movement information of the terminal; at least one processor; and a non-transitory computer readable storage medium coupled to the at least one processor and storing computer-executable codes which, when executed, cause the terminal to; obtain a first location of the terminal at a first moment; obtain a plurality of predicted locations corresponding to the first location; obtain, according to historical movement information of the terminal, a first probability corresponding to each predicted location of the plurality of predicted locations; obtain signal strength of at least one wireless signal received by the communications device at a second moment; obtain, according to the signal strength of the at least one wireless signal, a second probability corresponding to each predicted location of the plurality of predicted locations; obtain, according to the first probability and the second probability that are corresponding to each predicted location, a third probability corresponding to each predicted location of the plurality of predicted locations; and determine a predicted location with a highest third probability in the plurality of predicted locations as a second location of the terminal at the second moment;
wherein;the first probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at a second moment and the first probability is obtained according to the historical movement information of the terminal, the second moment is later than the first moment, and a second probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at the second moment and the second probability is obtained according to the signal strength of the at least one wireless signal. - View Dependent Claims (8, 9, 10, 11, 14, 15, 16)
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17. A non-transitory computer readable storage medium, including instructions which cause a terminal to:
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obtain a first location of the terminal at a first moment; obtain a plurality of predicted locations corresponding to the first location; obtain, according to historical movement information of the terminal, a first probability corresponding to each predicted location; obtain signal strength of at least one wireless signal received by the terminal at a second moment; obtain, according to the signal strength of the at least one wireless signal, a second probability corresponding to each predicted location; obtain, according to the first probability and the second probability that are corresponding to each predicted location, a third probability corresponding to each predicted location; and determine a predicted location with a highest third probability in the plurality of predicted locations as a second location of the terminal at the second moment;
whereinthe first probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at a second moment and the first probability is obtained according to the historical movement information of the terminal, the second moment is later than the first moment, and a second probability corresponding to the predicted location is a probability that the terminal is located at the predicted location at the second moment and the second probability is obtained according to the signal strength of the at least one wireless signal. - View Dependent Claims (18, 19, 20)
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Specification