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A pair of automatic doors. An automatic door, also known as an auto door, is a door that opens automatically, without the need for human intervention or usually upon sensing the approach of a person. A person can be detected by microwave pulses, infrared sensors, or pressure-sensing pads. [1]
Sensors: In a security alarm, some sensors detect intrusions. Sensors' locations are at the perimeter of the protected area, within it, or both. Sensors can detect intruders by different methods. Alerting devices indicate an alarm condition. Most commonly, these are bells, sirens, also and or flashing lights. Alerting devices serve the dual ...
A door operator may use sensors to prevent the door from coming into contact with a user. Full Energy operators require at least 3 sensors. Low-energy operators are not required to have safety sensors, as the door is allowed to come in contact with a user, given that the kinetic energy of the moving door is limited by the reduced moving speed.
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Besam was an international supplier and manufacturer of automatic entrance equipment for commercial, health care and residential buildings owned by Assa Abloy. [1] The product portfolio included automatic doors, automatic swing doors, sliding doors and revolving doors, as well as air curtains and dedicated service and maintenance.
Prior to remote keyless systems (RKS), several manufacturers offered keypad systems which did not allow "remote entry" per se, but allowed a user to enter a vehicle without a key by entering a code on a multi-button keypad on the driver door or pillar — to unlock the driver door. Subsequent code presses could unlock all doors or the trunk ...
BEA Systems, Inc. was a company that specialized in enterprise infrastructure software products, which was wholly acquired by Oracle Corporation on April 29, 2008. [ 2 ] History
A door operator may be triggered in various ways: Approach Sensor (such as a radar sensor) - the door opens when a user approaches it. Pushbutton - the door opens when a user presses a button. Access control - the door opens when an access control system determines the user is authorized to go through. Automatically (in the case of elevators).