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Method and system for grouping devices in a same space for cross-device marketing

  • US 10,210,545 B2
  • Filed: 12/30/2015
  • Issued: 02/19/2019
  • Est. Priority Date: 12/30/2015
  • Status: Active Grant
First Claim
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1. A method for grouping devices in a same space, comprising:

  • connecting a plurality of devices to a server;

    classifying the plurality of devices to two types based on mobility, including a stable device type and a mobile device type;

    identifying one or more neighborhood devices associated with at least one stable device based on status information of the plurality of devices;

    collecting, by one of the at least one stable device, a sound sample;

    determining whether the sound sample is a noticeable sound sample, wherein a noticeable sound sample is a sound sample with a content measurement above a preset threshold, and at least one of a signal-to-noise ratio of the sound sample and an entropy of the sound sample is used as a content measurement metric to compare with the preset threshold;

    when the sound sample is determined to be a noticeable sound sample, recording, respectively by the at least one stable device and the one or more neighborhood devices, an audio sample at a set time, wherein the audio sample is respectively recorded by the at least one stable device and the one or more neighborhood devices at a same time point in the same space;

    respectively calculating a similarity score between the audio sample of the one or more neighborhood devices and the audio sample of the at least one stable device; and

    determining one or more devices among the one or more neighborhood devices as in the same space as one or more of the at least one stable device based on the similarity score, so that the one or more devices among the one or more neighborhood devices being automatically identified as a same group in the same space.

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