A tool for monitoring the state of vaccination refrigeration units.

Data Model

• Fridge The permanent (i.e. name, location) and latest transient data of a fridge.
• FridgeStatus A single report of transient data (i.e. usingBattery, battery level).

Source Layout

cloud/ - Cloud code

• main.js code deployed on Parse. Publishes FridgeStatus objects to Fridges and sends pushes if the update warrants concern.
• cron.js node.js code which periodically to detects Fridges which are not updated (automatically by a FridgeStatus being published)

config/ - Configuration directory for cloud code. Automatically created by Parse

fridge_sim/ - scripts used for simulating a series of fridges. Each assumes a fridgestatus directory.

• create_mock_files.py [int threshold] Downloads the list of all known Fridge objects from Parse and creates a file that allows the fridge to be mocked. If specified, threshold states the percentage that should be mocked as powered, else 100% are powered.
• update_all_statuses.py Should be run in the background during demos. Sends heartbeat signals.
• update_chagned_statuses.py Should be run in the background during dmeos. Sends updates more quickly if a mock file is modified.
• discharge.py [fridge] Simulates a fridge being disconnected from power. fridge is the name of a fridge without spaces.
• charge.py [fridge] Simulates a fridge being reconnected to power. fridge is the name of a fridge without spaces.
• malfunction.py [fridge] Simulates a fridge malfunction. It will stop sending heartbeats in update_all_statuses.py. fridge is the name of a fridge without spaces.

ios/ - A project which allows users to register for pushes when a fridge needs attention

www/ - HTML5 web application displaying global fridge statuses.