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Sample Application
178
SR2MAN01 11/2007
Specifications
Objective We wish to complete and centralize the control of the underground car park of an
administrative building.
Automatic Gate
The entrance and the exit of the car park are controlled by an ordinary automatic gate.
The gate has the usual basic features such as:
z Gate timing (opening and closing) by passing vehicles,
z Ticket payment management,
z Safety telephones,
z External control for locking in closed position, etc.
Counting
Vehicles
In addition, we would like to keep track of vehicles parked in the facility.
We would thus be able to control a lighted panel that informs drivers when all parking
spaces are occupied and prevents access by locking the gate in the closed position.
Drivers would then know to look for a parking space elsewhere.
It must also be possible to override this function when necessary to allow access for
emergency services (fire department, emergency medical service, etc.).
Open Time We would also like to prevent access to the facility when the building is closed.
Security personnel should be allowed to prevent the gate from locking in non-ordinary
circumstances. The hours of opening are the following: Monday to Friday from 8:30
am to 5:30 pm, Saturday from 9:30 am to 12:00 noon and closed all day Sunday.
Removal of Toxic
Gasses
For safety reasons, it is also necessary to remove toxic emissions such as carbon dioxide
by using a fan when the measured concentration levels exceed permissible levels.
A specialized sensor will be used that provides an output value between 0 and 10V.
Lighting There is also a requirement to control lighting, triggered by a vehicle arriving and via
pushbutton switches placed near all of the pedestrian access points.
To save energy, lights will turn off after 10 minutes. This is the length of time
generally observed for someone to park and exit their vehicle and take the elevator,
or return to their vehicle and exit the park facility.
Manual Counting In addition, a manual action should be able to provide current information on the
number of vehicles parked in the facility. Someone should be able to manually
increase or decrease the number of vehicles known by the smart relay.