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Computerized door locking and monitoring system using power-line carrier components
| Details |
Inventors: Syron-Townson, Ann T.; Townson, James A.;
Assignee:
Primary Examiner: Ruggiero; Joseph
Assistant Examiner:
Attorney, Agent or Firm: Wood; Donald L.
A method of locking, unlocking and monitoring doors using a computer and a computer software program, electro-locking devices, power-line carrier components and existing AC wiring from the door sites to the computer is provided. The computer program changes the status of each door according to predetermined schedule and displays the locked/unlocked/ajar status of each door as well as the event change (Push bar/key/fire alarm). Exits are fitted with electro-door locks with sensor capabilities and are monitored from the computer via power line carrier components. At each exit site, a receiver receives commands from the computer and changes the locking status while a transmitter at the door site reports every changed status back to the computer. A microprocessor at each door site can control the doors and operate via battery back-up in a power failure or when communication from the computer program is interrupted. A transmitter at the fire alarm panel causes all doors to unlock if the fire alarm is activated. |
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DETAILED DESCRIPTION This invention is a method of locking, unlocking and monitoring doors using a computer and a computer software program, electro-locking devices wired to power-line carrier components and existing AC wiring from the door sites to the computer.
The computer program changes the status of each door according to a 24 hour, 7 day schedule and displays the locked/unlocked/ajar status of each door as well as the event change (Push bar/key/fire alarm).
Exits are fitted with electro-door locks with sensor capabilities and are monitored from the computer via power line carrier components.
At each exit site, a receiver receives commands from the computer and changes the locking status while a transmitter at the door site reports every changed status back to the computer.
A microprocessor at each door site can control the doors and operate via battery back-up in a power failure or when communication from the computer program is interrupted.
A transmitter at the fire alarm panel causes all doors to unlock if the fire alarm is activated.
To comply with State Fire Codes and users' needs, various options and features are added: a.
) The push bar or button by-pass will allow egress from the building, thus overriding the lock.
The computer will receive the use of this override and print the time, date and door location.
The door relocks after each override.
Whenever the door is not closed when it is to be locked, it sends a "Door Ajar" message to the computer.
When the push bar is used or when the door is ajar, a local alarm will sound.
b.
) A key or keypad override will allow authorized persons egress or ingress while in the locked position.
A message is printed noting the time, date and door location for each key override.
The door relocks after each key override.
Whenever the door is not closed when it is to be locked, it sends a "Door Ajar" message to the computer.
c.
) Local alarms are activated at each door according to the users' needs.
These can be buzzers, sirens, loud bells, lights, cameras and can be activated for a designated time
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