Motion detection based on groupings of statistical parameters of wireless signals
First Claim
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1. A motion detection method comprising:
- obtaining signals based on wireless signals transmitted through a space and received at a wireless communication device;
computing, for each signal, values of a set of statistical parameters, the set of statistical parameters comprising a first statistical parameter and a second statistical parameter;
identifying groupings of the statistical parameter values, wherein identifying the groupings comprises generating histogram data comprising a set of bins and a quantity for each bin, each bin corresponding to a respective range for each of the statistical parameters; and
by operation of one or more processors, executing a motion detection process that uses the identified groupings to determine whether an object moved in the space.
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Abstract
In a general aspect, motion is detected based on statistical parameters of received wireless signals. In some aspects, signals are obtained. The signals are based on wireless signals transmitted through a space and received at a wireless communication device. Values of a set of statistical parameters are computed for each signal, and groupings of the statistical parameter values are identified. A motion detection process that uses the identified groupings is executed to determine whether an object moved in the space.
131 Citations
27 Claims
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1. A motion detection method comprising:
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obtaining signals based on wireless signals transmitted through a space and received at a wireless communication device; computing, for each signal, values of a set of statistical parameters, the set of statistical parameters comprising a first statistical parameter and a second statistical parameter; identifying groupings of the statistical parameter values, wherein identifying the groupings comprises generating histogram data comprising a set of bins and a quantity for each bin, each bin corresponding to a respective range for each of the statistical parameters; and by operation of one or more processors, executing a motion detection process that uses the identified groupings to determine whether an object moved in the space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A motion detection system comprising:
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a data processing apparatus; and memory comprising instructions that are operable when executed by the data processing apparatus to perform operations comprising; obtaining signals based on wireless signals transmitted through a space and received at a wireless communication device; computing, for each signal, values of a set of statistical parameters, the set of statistical parameters comprising a first statistical parameter and a second statistical parameter; identifying groupings of the statistical parameter values, wherein identifying the groupings comprises generating histogram data comprising a set of bins and a quantity for each bin, each bin corresponding to a respective range for each of the statistical parameters; and executing a motion detection process that uses the identified groupings to determine whether an object moved in the space. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A computer-readable storage medium storing instructions that are operable when executed by a data processing apparatus to perform operations comprising:
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obtaining signals based on wireless signals transmitted through a space and received at a wireless communication device; computing, for each signal, values of a set of statistical parameters, the set of statistical parameters comprising a first statistical parameter and a second statistical parameter; identifying groupings of the statistical parameter values, wherein identifying the groupings comprises generating histogram data comprising a set of bins and a quantity for each bin, each bin corresponding to a respective range for each of the statistical parameters; and executing a motion detection process that uses the identified groupings to determine whether an object moved in the space. - View Dependent Claims (26, 27)
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Specification