Selecting wireless communication channels based on signal quality metrics
First Claim
1. A motion detection method comprising:
- receiving, at a first wireless communication device, a first set of signals based on wireless signals transmitted through a space on a set of wireless communication channels from a second wireless communication device;
by operation of one or more processors, computing a value of a signal quality metric for each of the wireless communication channels based on the first set of signals;
selecting one of the set of wireless communication channels based on a comparison of the values of the signal quality metric for the respective wireless communication channels;
sending, from the first wireless communication device to the second wireless communication device, a message indicating the selected wireless communication channel;
receiving, at the first wireless communication device, a second set of signals based on wireless signals transmitted through the space on the selected wireless communication channel from the second wireless communication device; and
by operation of one or more processors, executing a motion detection process to detect motion of an object in the space based on the second set of signals.
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Abstract
In a general aspect, a wireless communication channel is selected based on signal quality metrics. In some aspects, a first wireless communication device receives a first set of signals based on wireless signals transmitted through a space on a set of wireless communication channels from a second wireless communication device. A signal quality metric value is computed for each wireless communication channel based on the first set of signals, and one of the wireless communication channels is selected based on a comparison of the signal quality metric values for the respective wireless communication channels. The first wireless communication device receives a second set of signals based on wireless signals transmitted through the space on the selected wireless communication channel from the second wireless communication device, and a motion detection process is executed to detect motion of an object in the space based on the second set of signals.
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Citations
28 Claims
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1. A motion detection method comprising:
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receiving, at a first wireless communication device, a first set of signals based on wireless signals transmitted through a space on a set of wireless communication channels from a second wireless communication device; by operation of one or more processors, computing a value of a signal quality metric for each of the wireless communication channels based on the first set of signals; selecting one of the set of wireless communication channels based on a comparison of the values of the signal quality metric for the respective wireless communication channels; sending, from the first wireless communication device to the second wireless communication device, a message indicating the selected wireless communication channel; receiving, at the first wireless communication device, a second set of signals based on wireless signals transmitted through the space on the selected wireless communication channel from the second wireless communication device; and by operation of one or more processors, executing a motion detection process to detect motion of an object in the space based on the second set of signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A motion detection method, comprising:
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by operation of one or more processors, determining, based on wireless signals received by a first wireless communication device over a set of wireless communication channels from a plurality of second wireless devices, for each wireless communication channel in the set; a number of viable communication paths for communication on the wireless communication channel between the first wireless communication device and each of the second wireless communication devices; and a value of a signal quality metric for communication on the wireless communication channel between the first wireless communication device and each of the second wireless communication devices; selecting, from the set, one of the wireless communication channels for wireless motion detection based on at least one of the number of viable communication paths and the value of the signal quality metric for the wireless communication channel; and executing a motion detection process to detect motion of an object in the space based on the selected one of the wireless communication channels. - View Dependent Claims (12, 13, 14)
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15. A system comprising:
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wireless communication devices distributed in a space, each wireless communication device comprising a modem configured to send and receive wireless signals through the space on multiple wireless communication channels; a data processing apparatus communicatively coupled to at least one of the wireless communication devices and configured to; determine, based on wireless signals received by a first wireless communication device over a set of wireless communication channels from a plurality of second wireless devices, for each wireless communication channel in the set; a number of viable communication paths for communication on the wireless communication channel between the first wireless communication device and each of the second wireless communication devices; and a value of a signal quality metric for communication on the wireless communication channel between the first wireless communication device and each of the second wireless communication devices; select, from the set, one of the wireless communication channels for wireless motion detection based on at least one of the number of viable communication paths and the value of the signal quality metric for the wireless communication channel; and execute a motion detection process to detect motion of an object in the space based on the selected one of the wireless communication channels. - View Dependent Claims (16, 17, 18)
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19. A system comprising:
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wireless communication devices distributed in a space, each wireless communication device comprising a modem configured to send and receive wireless signals through the space on multiple wireless communication channels; a data processing apparatus communicatively coupled to at least one of the wireless communication devices and configured to; compute a value of a signal quality metric for each of a set of multiple wireless communication channels based on a first set of signals received at a first wireless communication device, the first set of signals based on wireless signals transmitted through the space on the set of wireless communication channels from a second wireless communication device; select one of the set of wireless communication channels based on a comparison of the values of the signal quality metric for the respective wireless communication channels; send a message indicating the selected wireless communication channel to the second wireless communication device; receive, at the first wireless communication device, a second set of signals based on wireless signals transmitted through the space on the selected wireless communication channel from the second wireless communication device; and execute a motion detection process to detect motion of an object in the space based on the second set of signals. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification