Abstract: A building automation control system for use in a building having an IT network includes at least one BAS controller connected to the IT network and at least one BAS device located within the building and connected to the at least one BAS controller through the IT network. Further the system may be configured to use standards-based IT technologies over the IT network to manage the at least one BAS device. The standards-based IT technologies may include DHCP to obtain IP addresses and network parameters of the BAS devices, DNS to provide a mechanism for associating the BAS devices with human-friendly names, a distributed mechanism for storing the names, and a method for locating the BAS devices by resolving names and IP addresses, SNTP to synchronize time on the BAS devices, SNMP to monitor the BAS devices and report alarms, SMTP for delivery of e-mail alarms, web-services to provide Internet-friendly communications, and standards-based IT security mechanisms to protect software of the BAS devices.

Abstract: A building automation control system for use in a building having an IT network is disclosed. The building automation control system includes at least one BAS controller connected to the IT network and at least one BAS device located within the building and connected to the at least one BAS controller through the IT network. Further the system may be configured to use standards-based IT technologies over the IT network to manage the at least one BAS device.

Abstract: A computer-implemented building automation system provides a computer software architecture that supports object-oriented system development. An application engineer designs an application to perform a building automation function that solves a problem or customer need in the context of a building automation system. In the object-oriented paradigm, standard objects are the fundamental building block used to construct an application. Based on predetermined physical relationships defined by physical laws associated with building automation functions, the present invention defines a fundamental set of control-based standard objects for constructing an application. An additional set of information-type standard objects have also been defined for use in conjunction with this set of control-based standard objects. Standard objects are interconnected by "pulling" or "pushing" information from one standard object to another standard object using common communication methods.

Abstract: The building automation application framework defines an object-oriented class hierarchy in which a standard object superclass defines a plurality of different standard objects that may be assembled by a system designer into larger and more complex building automation systems. The standard objects include a view component that handles implementation details of displaying that object's contents on a standardized or generic user interface browser. The standard object also includes a command component that identifies to other objects what methods may be invoked by that object, thereby relieving the system developer from attending to this programming detail. The application framework defines a building automation model that is application-centric, as opposed to device-centric. Applications are constructed by interconnecting standard objects, assemblies formed from standard objects, and other application objects.

Abstract: The present invention relates to a diagnostic system for use in a network control system. The diagnostic system is preferably utilized to analyze VAV box performance in an environmental control system such as a network facilities management system. The diagnostic system advantageously allows the serviceperson to perform diagnostic tests on VAV boxes from a remote location. Flat box warnings, starved box warnings, box excessive damper hysteresis warnings, oversized box warnings, damper stroke out of bounds warnings, as well as other box and damper warnings may be provided by the diagnostic system. Preferably, the diagnostic system formats the air flow data so that it can be displayed for graphing. The diagnostic system causes individual controls to adjust the damper positions. Air flow parameters for each position are communicated to the remote location.