Cold storage device

Abstract

An electronic paper display is used for an ice-lined cold storage device to display data from the device's data system and/or from an external network.

1 .- 15 . (canceled) 
     
     
         16 . A cold storage device
 wherein the cold storage device is a passive, ice-lined, vaccine cold storage device;   wherein the passive, ice-lined, vaccine cold storage device comprises:
 a cold storage compartment arranged at an interior of the passive, ice-lined, vaccine cold storage device; and 
 an ice-lining configured to absorb heat from the interior of the passive, ice-lined, vaccine cold storage device; 
   wherein the cold storage device further comprises a data system comprising:
 a temperature probe configured to measure a temperature in the cold storage compartment; 
 a data logger configured to log the temperature of the cold storage compartment measured by the temperature probe; and 
 a visual display configured to display data from the data system; 
   and wherein the visual display is an electronic paper display.   
     
     
         17 . The cold storage device of  claim 16 , in which the visual display is powered by a data system battery. 
     
     
         18 . The cold storage device of  claim 17 , in which the data system battery has an operating voltage which is in the range 4.5 to 6 volts. 
     
     
         19 . The cold storage device of  claim 17 , in which the data system battery has a capacity in the range 500-3000 mAh. 
     
     
         20 . The cold storage device of  claim 16 , in which the visual display is configured to display data from the data system selected from: data from the temperature probe; data derived from the data logger; and data that has been transmitted to the data system. 
     
     
         21 . The cold storage device of  claim 16 , in which the electronic paper display has a standby power which is less than 1 mW. 
     
     
         22 . The cold storage device of  claim 16 , in which the electronic paper display has a standby power which is less than 0.1 mW. 
     
     
         23 . The cold storage device of  claim 16 , in which the data system comprises:
 a transmitter configured to transmit data wirelessly from the data system to an external network and   a receiver configured to receive data transmitted wirelessly by an external network for controlling the electronic paper display.   
     
     
         24 . The cold storage device of  claim 16 , in which the data system comprises:
 a receiver configured to receive data transmitted wirelessly by an external network;   and in which the electronic display is configured to display data received from the external network.   
     
     
         25 . The cold storage device of  claim 24 , wherein the electronic display is configured to display a warning message received by the receiver from the external network. 
     
     
         26 . The cold storage device of  claim 16 , in which the data system is configured to be switchable between
 a) a standard display mode in which the electronic paper display is periodically updated to display a plurality of updated data from the data system and   b) an energy saving display mode in which the electronic paper display displays only a selected portion of the said data.   
     
     
         27 . The cold storage device of  claim 26 , in which
 i) in its energy saving display mode the electronic paper display displays an amount of data which is limited to reduce a partial refresh power consumption of the electronic paper display, the data displayed in the energy saving display mode being selected from: an internal temperature of the cold storage compartment; one or more alarms and combinations thereof; and   ii) in its standard display mode the electronic paper display displays a greater amount of data than in the energy saving display mode, the data displayed in the standard display mode being selected from: an internal temperature of the cold storage compartment; a temperature outside the cold storage device; remaining battery charge available to the data logger; remaining charge of a data system battery; one or more alarms; an indication of the status of a lid of the cold storage device; remaining autonomy of the cold storage device; telemetric data of the cold storage device; and combinations thereof.   
     
     
         28 . A method of operating the cold storage device of  claim 16 , wherein the method comprises displaying on the electronic paper display of the cold storage device data selected from: data from the data system, a temperature of the cold storage compartment, and data transmitted to the cold storage device from an external network.