Portable Cushion Device

Abstract

A portable cushion device is provided, including a first cushion region, a second cushion region, a control interface module, and an alarm unit. The second cushion region includes an inflation inlet. The first cushion region is located on the outside of the second cushion region. The control interface module is connected to the second cushion region, and is able to inflate the second cushion region to a specific pressure through the inflation inlet. When an object is placed on the second cushion region, the control interface module measures the weight of the object and monitors the object continuously. The alarm unit is triggered to issue an alarm when the control interface module detects a sudden increase or decrease of the weight of the monitored object on the second cushion region.

1 . A portable cushion device, comprising:
 a second cushion region having an inflation inlet;   a first cushion region located on outside of said second cushion region;   a control interface module connected to said second cushion region, able to inflate said second cushion region through said inflation inlet to a specific pressure, when an object being placed on said second cushion region, said control interface module measuring weight of said object and continuing monitoring said object; and   an alarm unit;   wherein when said control interface module detects a sudden change in said weight of said object on said second cushion region, triggers said alarm unit to issue an alarm.   
     
     
         2 . The portable cushion device as claimed in  claim 1 , wherein said first cushion region consists of a plurality of donut-shaped air cushions. 
     
     
         3 . The portable cushion device as claimed in  claim 1 , wherein said first cushion region is made of a soft material. 
     
     
         4 . The portable cushion device as claimed in  claim 1 , wherein inner perimeter of said first region has a connection element. 
     
     
         5 . The portable cushion device as claimed in  claim 2 , wherein said donut-shaped air cushions are connected by a plurality of airflow channels. 
     
     
         6 . The portable cushion device as claimed in  claim 1 , wherein said second cushion region consists of a plurality of donut-shaped air cushions. 
     
     
         7 . The portable cushion device as claimed in  claim 1 , wherein said second cushion region is made of soft material. 
     
     
         8 . The portable cushion device as claimed in  claim 6 , wherein said donut-shaped air cushions are connected by a plurality of airflow channels. 
     
     
         9 . The portable cushion device as claimed in  claim 1 , wherein outer perimeter of said second cushion region has a connection element. 
     
     
         10 . The portable cushion device as claimed in  claim 1 , wherein said control interface module further includes a control unit, a power unit, a valve unit, a pump unit, a pressure sensor unit, a transmitter unit, a buzzer unit and a plurality of switches, and said control unit connects respectively to said power unit, said valve unit, said pump unit, said pressure sensor unit, said transmitter unit, said buzzer unit and said switches. 
     
     
         11 . The portable cushion device as claimed in  claim 10 , wherein said control unit further includes a micro control unit and at least a display. 
     
     
         12 . The portable cushion device as claimed in  claim 10 , wherein said power unit further includes a battery and a regulator. 
     
     
         13 . The portable cushion device as claimed in  claim 10 , wherein said valve unit further includes a valve and a valve driver. 
     
     
         14 . The portable cushion device as claimed in  claim 10 , wherein said pump unit further includes a pump and a pump driver. 
     
     
         15 . The portable cushion device as claimed in  claim 10 , wherein said pressure sensor unit further includes a pressure sensor and an amplifier. 
     
     
         16 . The portable cushion device as claimed in  claim 10 , wherein said transmitter unit further includes a transmitter and an antenna. 
     
     
         17 . The portable cushion device as claimed in  claim 10 , wherein said buzzer unit further includes a buzzer and an amplifier. 
     
     
         18 . The portable cushion device as claimed in  claim 1 , wherein said control interface module transmits at least a wireless signal to trigger said alarm unit. 
     
     
         19 . The portable cushion device as claimed in  claim 1 , wherein said alarm unit further includes a micro control unit, a receiver, a buzzer unit and a battery, and said micro control unit receives at least a signal from said receiver for triggering said buzzer unit to issue an alarm. 
     
     
         20 . The portable cushion device as claimed in  claim 19 , wherein said receiver further includes an antenna. 
     
     
         21 . The portable cushion device as claimed in  claim 19 , wherein said buzzer unit further comprises a buzzer and an amplifier. 
     
     
         22 . A method for operating a portable cushion device, said method comprising:
 connecting a control interface module to a second cushion region;   said control interface module inflating said second cushion region and determining whether said second cushion region reaching a specific pressure;   after said second cushion region reaching said specific pressure, measuring weight of an object placed on said second cushion region, displaying and storing said weight of said object, and selecting whether to enter a monitoring mode;   after entering monitoring mode, said control interface module continuing monitoring said weight of said object on said second cushion region; and   when detecting a sudden change in said weight of said monitored object, issuing a warning signal wirelessly to an alarm unit to trigger an alarm.   
     
     
         23 . The method as claimed in  claim 22 , wherein the operation of said control interface module further includes:
 determining whether inflating said second cushion region reaching a specific pressure;   measuring said weight of said object on said second cushion region, displaying and storing said weight;   selecting whether to enter said monitoring mode and continuing monitoring said weight of said object; and   issuing a warning signal to trigger said alarm unit when detecting a sudden change in said weight of said monitored object.   
     
     
         24 . The method as claimed in  claim 23 , wherein said measuring of said weight of said object placed on said second cushion region is a linear relation between load and pressure for said weight.