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Integrated-services-digital-network-based-facility-management-system

Non-volatile semiconductor memory device

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Integrated services digital network based facility management system

Details

Inventors: Ruiz, John I.;
Assignee: Johnson Service Company (Milwaukee, WI)
Primary Examiner: Olms; Douglas W.
Assistant Examiner: Patel; Ajit
Attorney, Agent or Firm: Foley & Lardner

A facility management system including facility control devices, monitoring arrangements, and actuating arrangements is provided. Each facility control device is connected to every other facility control device through a group of Integrated System Digital Network (ISDN) bearer channels (B-channels). Each facility control device is further connected to every actuating and monitoring arrangement through an ISDN data channel (D-channel). This facility management system allows each facility control device to communicate with all other facility control devices without any intervening communication processing by other facility control devices. Thus, this system does not create the throughput bottlenecks and reliability problems inherent in systems which necessitate such intervention. The components of this facility management system are networked over telephone lines, thus, the system does not require the installation of separate network lines between each system component.

DETAILED DESCRIPTION The present invention provides for a facility management system with at least four facility control devices and a means for providing direct communication between each control device and at least three other facility control devices.
The present invention further provides for a facility management system with at least two facility control devices, an actuating arrangement, and a means for providing direct communication between the actuating arrangement and each of the facility control devices.
The present invention further provides for a facility management system with at least two facility control devices, a monitoring arrangement, and a means for providing direct communication between the monitoring arrangement and each of the facility control devices.
The present invention further provides for a facility management system with at least three facility control devices wherein each facility control device is directly coupled to at least two other facility control devices though a B-channel group.
The present invention further provides for a facility management system with a facility control device coupled to an actuating arrangement through a D-channel.
The present invention further provides for a facility management system with a facility control device coupled to a monitoring arrangement through a D-channel.

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