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The OPMA-Sys is based on the server-client structure, but in a way that each client on their own are able to operate without constant control. The system consist of the computer located on the spot with its client programand the displaying tool, which can be a monitot, plasma television or a projector.
The communication of the client program is provided by the fast internet access of the computers. One or two - depending the size of the system - server can be in charge of central controlling.
The server is in charge of storing and archiving the commercials.
The clients can be classified and controlled as groups, but they can be controlled by oneself too. For this reason the whole system is uniquely variable, on request of the advertiser the displaying area or regio can be well definable.
The control of the appearance' actual time is provided by the webcam on the spot.
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