Systems and methods for monitoring door opening events

Abstract

A method to automatically audit the number of units within an enclosure having at least one door includes receiving from a remote telemetry device data indicating the number of times within a predetermined period of time a door has been opened to a predetermined open position relative to the enclosure, the predetermined open position of the door being specifically calibrated by a sensor device being mechanically set when the sensor device is installed on the enclosure proximal to the door as a position of the door between a closed position and a more fully opened position beyond the predetermined open position, to generate a door opening count, wherein the remote telemetry device includes a sensor configured to be adjustably calibrated to sense when the door is at the predetermined open position relative to the enclosure based upon the adjustable calibration, to generate the door opening count. A remote telemetry device for automatically auditing the number of items within an enclosure having at least one door for removal and restocking of the items that includes a remote telemetry device in communication with at least one sensor device configured to be calibrated, the calibration of the sensor device being set when the sensor device is installed based upon the size of an item, the sensor configured to detect the door opening to a calibrated door open position, data indicative of the number of items within the enclosure to determine a current count.

What is claimed is: 
     
         1 . A method to automatically audit the number of units within an enclosure having at least one door, comprising:
 receiving from a remote telemetry device data indicating the number of times within a predetermined period of time a door has been opened to a predetermined open position relative to the enclosure, the predetermined open position of the door being specifically calibrated by a sensor device being mechanically set when the sensor device is installed on the enclosure proximal to the door as a position of the door between a closed position and a more fully opened position beyond the predetermined open position, to generate a door opening count, wherein the remote telemetry device includes a sensor configured to be adjustably calibrated to sense when the door is at the predetermined open position relative to the enclosure based upon the adjustable calibration, to generate the door opening count.   
     
     
         2 . The method as claimed in  claim 1 , further comprising:
 receiving a number of the units positioned within the enclosure at a prior particular time; and   determining a current count of the units based on the data indicating the number of times within a predetermined period of time a door has been opened to a predetermined open position relative to the enclosure and the number of units positioned within the enclosure at a prior particular time.   
     
     
         3 . The method as claimed in  claim 2 , further comprising:
 applying an historical correlation factor to the current count to generate a prediction of when the units in the enclosure will reach a predetermined inventory.   
     
     
         4 . The method as claimed in  claim 2 , further comprising:
 applying a characteristic correlation factor to the current count to generate a prediction of when the units in the enclosure will reach a predetermined inventory number.   
     
     
         5 . The method as claimed in  claim 1 , wherein the remote telemetry device comprises an arm such that when the door opens, the arm slides against the door resulting in a switch event when the door is opened to the predetermined open position relative to the enclosure, the switch event resulting in sensor output. 
     
     
         6 . A remote telemetry device for automatically auditing the number of items within an enclosure having at least one door for removal and restocking of the items, comprising:
 a remote telemetry device in communication with at least one sensor device configured to be calibrated, the calibration of the sensor device being set when the sensor device is installed based upon the size of an item, the sensor configured to detect the door opening to a calibrated door open position, data indicative of the number of items within the enclosure to determine a current count.   
     
     
         7 . The device as claimed in  claim 6 , wherein the device is mechanically set during installation. 
     
     
         8 . The device as claimed in  claim 6 , further comprising applying a historical correlation factor to correct the current count to generate a prediction of when the items in the enclosure will reach a predetermined inventory. 
     
     
         9 . The device as claimed in  claim 6 , further comprising:
 applying a characteristic correlation factor to the current count to generate a prediction of when the items in the enclosure will reach a predetermined inventory number.   
     
     
         10 . The device as claimed in  claim 6  wherein the item is a gas cylinder. 
     
     
         11 . The remote telemetry device as claimed in  claim 6 , further comprising an arm such that when the door opens, the arm slides against the door resulting in a switch event when the door is opened to predetermined open position relative to the enclosure, the switch event resulting in sensor output.