{
  "$type": "site.standard.document",
  "description": "A controller for controlling a battery-powered luminaire in a lighting network comprises: a network interface for communicating with the lighting network; and control logic for controlling at least one illumination source of the battery-powered luminaire; wherein the control logic is configured to…",
  "path": "/patents/1251865",
  "publishedAt": "2020-01-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H05B37/0272",
    "SIGNIFY HOLDING B.V."
  ],
  "textContent": "A controller for controlling a battery-powered luminaire in a lighting network comprises: a network interface for communicating with the lighting network; and control logic for controlling at least one illumination source of the battery-powered luminaire; wherein the control logic is configured to: detect a failure of at least one mains-powered luminaire in the lighting network, determine that the mains-powered luminaire was emitting or had been instructed to emit a visual alert when the failure occurred, and control the at least one illumination source of the battery-powered luminaire to emit a version of that visual alert in response, the failure being detected based on a loss of communication, within the lighting network, with the mains-powered luminaire.",
  "title": "VISUAL ALERTS IN A LIGHTING NETWORK"
}