Patent ID: 11946307
Assignee: ASSA ABLOY ENTRANCE SYSTEMS AB
Field: Civil engineering (Other fields)
Classification: CPC E  G | IPC E  G

Claim 11:
12. A swing door entrance system comprising:
at least one swing door;
an automatic door operator for causing movements of the at least one swing door between closed and open positions; and
a control arrangement comprising:
a controller; and
a plurality of sensors, each sensor being connected to the controller and being configured to monitor a respective zone near the at least one swing door, wherein the plurality of sensors includes:
at least one activity sensor, wherein the at least one activity sensor, in a closed state or a closing state of the at least one swing door, detects when a person or object approaches the at least one swing door and triggers an opening state for opening the at least one swing door and
at least one presence sensor, wherein the at least one presence sensor detects when the person or object occupies a space near the at least one swing door towards the closed position during a closing state of the at least one swing door or towards the open position during the opening state of the at least one swing door,
wherein each sensor has an active mode and an inactive mode, wherein each sensor consumes no electric power in the inactive mode or substantially less electric power in the inactive mode than in the active mode; and
wherein the controller:
determines a current operational state of the at least one swing door among a plurality of operational states; and
in response to the at least one swing door being in an open operational state, causes the at least one activity sensor to be in the active mode and the at least one presence sensor to be in the inactive mode,
wherein the at least one activity sensor comprises an outer activity sensor, the system having a plurality of different operating modes, each operating mode having a single operational state or a plurality of operational states comprising:
a first operating mode for selectively controlling the plurality of sensors to be active or inactive; and
a second exit operating mode to facilitate an exit of persons from a premises where the swing door entrance system is installed, for selectively controlling the outer activity sensor to be inactive irrespective of operational state of the at least one swing door, and
a third open operating mode for holding the at least one swing door in the open position, wherein all of the plurality of sensors are kept in the inactive mode.