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Firmware updates (FUOTA)

When the current firmware in a Silvanet sensor or gateway requires updating, FUOTA is used to simultaneously send the latest firmware update to a predetermined number of Silvanet devices in a Site.

Dryad engineering checks the current firmware versions of the sensors and if an update is required then three days are usually needed to send the updates to the sensors. This is because updates are sent in data packets of a restricted size and then are reconstituted in the sensor before an update is done.

Dryad engineering notifies the customer before performing any firmware updates to a Silvanet deployment.

Factors affecting the length of time for FUOTA include:

  • Strength of device communication (good vs poor communication)

  • Supercapacitor energy storage levels (high vs low energy storage).