Building management system with automatic equipment discovery and equipment model distribution
First Claim
1. A building management system comprising:
- a system manager comprising a first system bus datalink having a first active node table stored therein;
a zone coordinator comprising a second system bus datalink and a zone bus datalink;
a system bus connecting the first system bus datalink to the second system bus datalink;
one or more zone controllers, each zone controller configured to monitor and control a building zone; and
a zone bus connecting the zone bus datalink to the one or more zone controllers;
wherein a plurality of system bus devices, including the system manager and the zone coordinator, communicate on the system bus using a master-slave token passing protocol;
wherein the first active node table comprises a plurality of nodes, each node representing one of the system bus devices participating in a token passing ring used to exchange information among the system bus devices using the master-slave token passing protocol via the system bus;
wherein the system manager is configured to monitor the first active node table for new nodes and to identify a new system bus device communicating on the system bus in response to a determination that the first active node table includes a new node.
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Accused Products
Abstract
A building management system including a system manager, a zone coordinator, and one or more zone controllers configured to monitor and control building zones. The system manager includes a system bus datalink having an active node table stored therein. The zone coordinator includes a second system bus datalink and a zone bus datalink. A system bus connects the first system bus datalink to the second system bus datalink. A zone bus connects the zone bus datalink to the one or more zone controllers. The active node table includes a plurality of nodes, each node representing a system bus device communicating on the system bus. The system manager is configured to monitor the active node table for new nodes and to identify a new system bus device communicating on the system bus in response to a determination that the active node table includes a new node.
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Citations
20 Claims
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1. A building management system comprising:
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a system manager comprising a first system bus datalink having a first active node table stored therein; a zone coordinator comprising a second system bus datalink and a zone bus datalink; a system bus connecting the first system bus datalink to the second system bus datalink; one or more zone controllers, each zone controller configured to monitor and control a building zone; and a zone bus connecting the zone bus datalink to the one or more zone controllers; wherein a plurality of system bus devices, including the system manager and the zone coordinator, communicate on the system bus using a master-slave token passing protocol; wherein the first active node table comprises a plurality of nodes, each node representing one of the system bus devices participating in a token passing ring used to exchange information among the system bus devices using the master-slave token passing protocol via the system bus; wherein the system manager is configured to monitor the first active node table for new nodes and to identify a new system bus device communicating on the system bus in response to a determination that the first active node table includes a new node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for discovering equipment in a building management system, the method comprising:
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monitoring a first active node table for new nodes, each node representing a system bus device participating in a token passing ring used to exchange information among a plurality of system bus devices via a system bus, wherein the plurality of system bus devices communicate on the system bus using a master-slave token passing protocol; identifying a new system bus device communicating on the system bus in response to a determination that the first active node table includes a new node; determining whether the new system bus device provides its own equipment model; retrieving the equipment model from the new system bus device in response to a determination that the new system bus device provides its own equipment model; and automatically generating a new equipment model for the new system bus device in response to a determination that the new system bus device does not provide its own equipment model. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification