Distributed control systems and methods
First Claim
Patent Images
1. A distributed control system, comprising:
- a plurality of nodes including at least first and second nodes operatively associated with one another, the first node broadcasting a signal identifying an event to the other nodes without addressing any particular nodes, the signal only identifying the event to reduce network congestion;
a signal filter provided at the second node, the signal filter used to determine, before the signal reaching the scripts, if at least one script residing at the second node would be activated based on the event identified in the signal from the first node by comparing an identification in the header of the scripts with the identification of the event;
a distributed controller provided at the second node, said distributed controller executing the at least one script corresponding to the signal to control a building automation function if the second node is responsive to the signal from the first node.
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Abstract
Distributed control systems and methods. An embodiment of distributed control system may comprise at least first and second nodes operatively associated with one another, the first node issuing a signal to at least the second node in response to an event. A load controlled by the second node, and a distributed controller provided at the second node. The distributed controller executing at least one script corresponding to the signal to control the load.
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Citations
27 Claims
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1. A distributed control system, comprising:
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a plurality of nodes including at least first and second nodes operatively associated with one another, the first node broadcasting a signal identifying an event to the other nodes without addressing any particular nodes, the signal only identifying the event to reduce network congestion; a signal filter provided at the second node, the signal filter used to determine, before the signal reaching the scripts, if at least one script residing at the second node would be activated based on the event identified in the signal from the first node by comparing an identification in the header of the scripts with the identification of the event; a distributed controller provided at the second node, said distributed controller executing the at least one script corresponding to the signal to control a building automation function if the second node is responsive to the signal from the first node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A distributed control system, comprising:
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a plurality of nodes including at least first and second nodes operatively associated with one another; a distributed controller provided at the first node, said distributed controller having; (a) program code for executing at least one script to generate a signal indentifying an event to reduce network congestion; and (b) program code for broadcasting the signal corresponding to the event to each of the plurality of nodes without addressing any particular nodes; the second node having a signal filter to determine, before the signal reaching the scripts, if at least one script residing at the second node would be activated by the identified event by comparing an identification in the header of the scripts with the event identified in the signal, the second node executing the corresponding script to control a building automation function in response to receiving the signal issued by the first node only if the second node is responsive to the event in the broadcast signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method for distributed control in a building automation environment, comprising:
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broadcasting a signal from a first node to all other nodes in the building automation environment including at least a second node in response to an event in the building automation environment without addressing any particular nodes, the signal in only the event to reduce network congestion; if the second node includes a script corresponding to the signal at the second node as determined, before the signal reaching the scripts, by comparing an identification in the header of the scripts with the identification of the event, then executing the script corresponding to the signal at the second node and controlling a building automation function from lead at the second node based on the executed script corresponding to the signal issued from the first node. - View Dependent Claims (21, 22, 23)
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24. A distributed control system for building automation, comprising:
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a plurality of nodes provided on a building automation network, each of the plurality of nodes controlling at least one building automation device; an input device provided on the building automation network, the input device generating a signal identifying only an event at the input device to reduce network congestion, and the input device broadcasting the signal to each of the plurality of nodes over the building automation network, the signal not addressed to any particular node in the building automation network; and a distributed controller provided at each of the plurality of nodes, the distributed controller having a signal filter for determining, be ore the signal reaching the scripts, if at least one script corresponds to the event identified by the signal by comparing an identification in the header of at least one script residing at the plurality of nodes with the identification of the event, if at least one script corresponds to the event identified by the signal, the distributed controller executing the at least one script to control the at least one building automation device, and if no script corresponds to the event identified by the signal, the distributed controller ignoring the signal. - View Dependent Claims (25, 26, 27)
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Specification