Categorizing motion detected using wireless signals
First Claim
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1. A motion detection method comprising:
- obtaining frequency response signals based on wireless signals transmitted through a space during a time period and received at a wireless sensor device;
by operation of one or more processors, determining values of a first statistical parameter for the time period by applying a first function to frequency components of the frequency response signals;
by operation of one or more processors, determining values of a second statistical parameter for the time period by applying a second function to frequency components of the frequency response signals; and
identifying a category of motion that occurred in the space during the time period based on the values of the first and second statistical parameters.
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Abstract
In a general aspect, motion detected using wireless signals is categorized. In some aspects, frequency response signals are obtained. The frequency response signals are based on wireless signals that were transmitted through a space and received at a wireless sensor device over a time period. Values of a statistical parameter are determined for the time period, with the statistical parameter for the time period being based on a function applied to frequency components of the frequency response signals over the time period. A category of motion that occurred in the space during the time period is identified based on the values of the statistical parameter.
119 Citations
30 Claims
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1. A motion detection method comprising:
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obtaining frequency response signals based on wireless signals transmitted through a space during a time period and received at a wireless sensor device; by operation of one or more processors, determining values of a first statistical parameter for the time period by applying a first function to frequency components of the frequency response signals; by operation of one or more processors, determining values of a second statistical parameter for the time period by applying a second function to frequency components of the frequency response signals; and identifying a category of motion that occurred in the space during the time period based on the values of the first and second statistical parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A motion detection method comprising:
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obtaining frequency response signals based on wireless signals transmitted through a space and received at a wireless sensor device, a first subset of the frequency response signals associated with a first time period and based on wireless signals transmitted through the space during the first time period, a second subset of the of the frequency response signals associated with a second, different time period and based on wireless signals transmitted through the space during the second time period; by operation of one or more processors, determining values of a first statistical parameter for the first and second time periods by applying a first function to frequency components of the respective subsets of the frequency response signals; by operation of one or more processors, determining values of a second statistical parameter for the first and second time periods by applying a second function to frequency components of the respective subsets of the frequency response signals; identifying, out of the values of the first and second statistical parameters, a pattern of values associated exclusively with the first time period; and associating, in a motion detection database, the pattern of values with a category of motion that occurred in the space exclusively during the first time period. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a data processing apparatus; and a non-transitory computer-readable medium storing instructions that are operable when executed by the data processing apparatus to perform operations comprising; obtaining frequency response signals based on wireless signals transmitted through a space during a time period and received at a wireless sensor device; determining values of a first statistical parameter for the time period by applying a first function to frequency components of the frequency response signals; determining values of a second statistical parameter for the time period by applying a second function to frequency components of the frequency response signals; and identifying a category of motion that occurred in the space during the time period based on the values of the first and second statistical parameters. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A system comprising:
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a data processing apparatus; and a non-transitory computer-readable medium storing instructions that are operable when executed by the data processing apparatus to perform operations comprising; obtaining frequency response signals based on wireless signals transmitted through a space and received at a wireless sensor device, a first subset of the frequency response signals associated with a first time period and based on wireless signals transmitted through the space during the first time period, a second subset of the of the frequency response signals associated with a second, different time period and based on wireless signals transmitted through the space during the second time period; determining values of a first statistical parameter for the first and second time periods by applying a first function to frequency components of the respective subsets of the frequency response signals; determining values of a second statistical parameter for the first and second time periods by applying a second function to frequency components of the respective subsets of the frequency response signals; identifying, out of the values of the first and second statistical parameters, a pattern of values associated exclusively with the first time period; and associating, in a motion detection database, the pattern of values with a category of motion that occurred in the space exclusively during the first time period. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification