Supply chain

Receive cold chain telemetry from remote temperature monitoring vendors, write it to DHIS2 and confirm consignment receipts upstream.

Vaccine refrigerators and freezers in health facilities are watched by remote temperature monitoring devices, whose vendors deliver the data to a server of the vendor's own. The WHO PQS E006/DS01.2 data standard requires these vendors to send the data on, as JSON in HTTPS POST requests, to an endpoint and with credentials the country defines - an API the country pulls from does not satisfy it on its own. Zato is that endpoint. It accepts the data of every vendor, writes the readings to DHIS2 and alerts the district of an alarm.

Further down the chain, facilities acknowledge the consignments they receive from the medical store in DHIS2, and Zato confirms each receipt to the warehouse system on the other side. This is the arrangement DHIS2 itself sets out for logistics, with facility data in DHIS2 connected through an integration layer to the national logistics management information system.

Processing flow

The DHIS2 side

The integration assumes a DHIS2 instance with two of the DHIS2 logistics packages:

The Temperature Monitoring Tool, a daily data set with one data element per refrigerator or freezer of a facility and a minimum, current and maximum temperature for the morning and the afternoon.
The Consignment Receipt Acknowledgement program, an event program in which a facility scans the consignment number on the packing list of what it received.

Pages in this section

Page	What it covers
Setup	A channel per vendor, the connections and the appliance mapping
Temperature readings	Readings of each half-day into the Temperature Monitoring Tool
Alarms	The district notified once per alarm
Consignment receipts	Acknowledged consignments confirmed to the central store