Importance

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Abstract

A pressure-detecting mat includes a plurality of communication modules that are configured to communicate with each other using the two dimension diffusive signal-transmission technology, a module layer that includes the plurality of communication modules scattered therein, a plurality of conductive layers that electrically interconnect the plurality of communication modules, at least two insulating layers that sandwich the module layer and the plurality of conductive layers, and a plurality of pressure sensors that are arranged in one of all the layers except the farthest layer in a pressure applying direction. Each of the pressure sensors being capable of detecting a pressure and communicating with each of the communication modules to send an output signal according to the detected pressure to each of the communication modules. The total stiffness of the layers that are farther in the pressure applying direction than the layer in which the pressure sensors are arranged is higher than the total stiffness of the layers that are closer in the pressure applying direction than the layer in which the pressure sensors are arranged.

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First Claim