When an alarms is removed, a delta should be sent to subscribers with the path and a null value.Įg If we exceed our anchor alarm radius: .currentRadius enters.

Of alarms in the same way as normal signalk keys.

Clients interested in alarms can subcribe to the.

Alarms raised are monitored by an alarm process on the server, which takes appropriate action, sounding alarms, or.

If a value leaves an alarm zone, then the key is removed from.

If a value enters an alarm zone, then a key is written to.

The server (or device) should monitor the current value and compare it to the defined zones.

Alarms are raised by placing an alarm object in the tree.

If the value goes out of the zone, remove the alarm by setting its value to null.

If the value is within an alarm zone raise the defined alarm.

Define alarm states as zones in the meta object attached to any Signal K value.

We need a flexible model to define alarm conditions, and a standard way to announce and record them. Alarms, alerts and notifications areĪll handled the same way, and are all referred to as alarms below. Handling alarms, alerts, and notifications in Signal K is a multi-stage process.

Anchor alarm