×

Sock for bed-departure detection

  • US 8,736,439 B1
  • Filed: 04/06/2013
  • Issued: 05/27/2014
  • Est. Priority Date: 04/06/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method of detecting bed-departure, comprising the following steps:

  • having a user in bed wear a sock, which is embedded or mounted with a pressure sensor in the sole, and mounted with a microcontroller unit comprising a battery, a radio-frequency module, and a microcontroller connected to said pressure sensor, or placing a slipper or a shoe on the floor near a user'"'"'s bed, wherein the slipper or shoe is embedded or mounted with a pressure sensor in the sole, and mounted with a microcontroller unit comprising a battery, a radio-frequency module, and a microcontroller connected to said pressure sensor;

    switching on said microcontroller unit to acquire a sensor output signal at a predetermined time interval;

    having said microcontroller compare the value of said sensor output signal with a predetermined threshold at said predetermined time interval;

    if said sensor output signal value is less than said threshold, having said microcontroller continue to acquire a new sensor output signal at the next time interval;

    if said sensor output signal value is equal or larger than said threshold, having said radio-frequency module transmit a radio-frequency signal to a separate monitoring unit; and

    having said monitoring unit generate an audible sound as an alert, once receiving said radio-frequency signal.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×