Signal management system for building systems
A system and approach for efficient algorithmic signal management for buildings. When a set of signals is received, attributes of the signals may be extracted from a database. The attributes of the signals may be matched against the rule conditions in the database. The matches may be compared to the rules to find the rules which have all of the conditions satisfied. These rules may be executed to modify the further processing of the signals. A signal for instance may be an alarm.
1. A signal management system for managing signals from one or more customers of an event data processing center comprising:
one or more signal sources associated with the one or more customers of the event data processing center, wherein the one or more signal sources include a building system of at least one building at one or more customer sites;
a processor for processing signals from the one or more signal sources, in accordance with a set of rules, wherein the processor determines the set of rules by using one or more matched filters, wherein the filters are matched to one or more attributes of the processed signal based on conditions associated with the attributes; and
a repository for storing the processed signals from the processor; and
wherein:
a rule is a conjunction of filters;
a filter is a disjunction of conditions;
the signals in the repository are accessible; and
the signal management is for building control.
2. The system of claim 1 , wherein the processor comprises:
an attribute extractor connected to a database;
an attribute matcher connected to the attribute extractor; and
a match comparator connected to the attribute matcher; and
wherein the database is for holding the rules.
3. The system of claim 2 , wherein the attribute extractor is for extracting attributes of signals.
4. The system of claim 3 , wherein the attribute matcher is for providing matches of attributes of the signals with conditions of the rules.
5. The system of claim 4 , wherein the matches are in the form of a tuple comprising a signal ID, an attribute ID and a rule ID.
6. The system of claim 4 , wherein the match comparator is for comparing the matches from the attribute matcher to the rules to determine which ones satisfy conditions of the rules.
7. The system of claim 6 , wherein:
an output from the match comparator comprises a signal ID and a rule ID; and
a signal is an alarm.
8. The system of claim 6 , wherein a rule or rules indicated by the output of the match comparator are executed.
9. A method for signal management comprising:
receiving signals at an event data processing center, wherein the signals are received from one or more customers of the event data processing center;
extracting attributes of signals;
matching the attributes having one or more conditions against conditions of rules;
determining the conditions which match with the attributes; and
selecting rules having their conditions matched; and
wherein:
the processor determines the set of rules by using one or more matched filters, wherein the filters are matched to one or more attributes of the processed signal based on conditions associated with the attributes;
a rule is a conjunction of filters;
a filter is a disjunction of conditions; and
signal management is for a building control system.
10. The method of claim 9 , wherein:
an output indicating rules from the selecting comprises items; and
each item comprises a signal ID and a rule ID.
11. The method of claim 10 , further comprising executing the rules indicated by the items.
12. The method of claim 11 , wherein:
a condition is a tuple; and
a tuple comprises a signal ID, an attribute ID and a rule ID.
13. The method of claim 12 , wherein
a signal is an alarm.
14. A system for signal management, comprising:
a processor at an event data processing center comprising:
an input for receiving signals from one or more signal sources associated with one or more customer sites;
an attribute extractor for extracting attributes of signals from a database;
an attribute matcher for obtaining matches of the attributes of signals against rule conditions in the database; and
a match comparator for comparing the matches with rules to determine rules having their conditions satisfied by the matches; and
wherein:
the processor determines the set of rules by using one or more matched filters, wherein the filters are matched to one or more attributes of the processed signal based on conditions associated with the attributes;
a rule is a conjunction of filters;
a filter is a disjunction of conditions; and
signal management is for building control.
15. The system of claim 14 , wherein a match is in a form of a tuple comprising a signal ID, an attribute ID and a rule ID.
16. The system of claim 15 , wherein the third mechanism is further for providing an output of items comprising a signal ID and a rule ID.
17. The system of claim 16 , further comprising a fourth mechanism for executing rules as determined by the output of the third mechanism.
18. The system of claim 17 , wherein each attribute has a set of one or more conditions.
19. The system of claim 18 , wherein:
the set of one or more conditions is matched against a signal record; and
a signal is an alarm.