Application of microsystems for real time IEQ control

• US 20070067063A1
• Filed: 08/30/2006
• Published: 03/22/2007
• Est. Priority Date: 08/30/2005
• Status: Active Grant

• Current Assignee: Siemens Industry Incorporated (Siemens AG)
• Original Assignee: Siemens Building Technologies Incorporated (Siemens AG)
• Inventors: Ahmed, Osman
• Granted Patent: US 7,780,092 B2
• Time in Patent Office: Days
• US Class Current: 700/275
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/54 using one central controller connected to several sub-controllers
• CPC Class Codes: F24F 11/56 Remote control
• CPC Class Codes: F24F 2110/00 Control inputs relating to air properties
• CPC Class Codes: F24F 2110/50 Air quality properties
• CPC Class Codes: F24F 2110/70 Carbon dioxide
• CPC Class Codes: G01N 33/0075 for multiple spatially distributed sensors, e.g. for environmental monitoring transmission systems for measured values G08C
• CPC Class Codes: G08B 19/00 Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
• CPC Class Codes: G08B 21/14 Toxic gas alarms G08B21/16 takes precedence
• CPC Class Codes: Y02B 30/70 Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

An arrangement includes a plurality of wireless microsystems and a central data processor. Each microsystem is operable to measure a plurality of indoor environmental quality-related parameters and is operable to communicate first information pertaining to the measured parameters wirelessly to a network device. The central data processor is operably coupled to receive the first information from the network device, and further configured to generate a metric value of an indoor environmental quality of at least a first space based at least in part on the first information, the metric value dependent upon each of the measured parameters of at least a first of the plurality of Microsystems.

Claims

1. An arrangement, comprising:

a plurality of wireless Microsystems, each microsystem operable to measure a plurality of indoor environmental quality-related parameters and operable to communicate first information pertaining to the measured parameters wirelessly to a network device,

a data processor operably coupled to receive the first information from the network device, and further configured to generate a metric value of an indoor environmental quality of at least a first space based at least in part on the first information, the metric value dependent upon each of the measured parameters of at least a first of the plurality of Microsystems.

2. The arrangement of claim 1, wherein the metric of the indoor environmental quality is based in part on information representative of at least one HVAC-related measurement and information representative of a measurement of a concentration of one or more gas substances.

3. The arrangement of claim 2, wherein the at least one HVAC-related measurement includes at least one selected from the group consisting of a temperature measurement, a humidity measurement, and a flow measurement.

4. The arrangement of claim 3, wherein the measurement of the concentration of one or more gas substances includes at least one selected from the group consisting of a CO₂ concentration measurement, a noxious gas concentration measurement, and a CO concentration measurement.

5. The arrangement of claim 2, wherein the plurality of indoor environmental quality-related parameters includes HVAC-related measurements and gas concentration measurements.

6. The arrangement of claim 1, wherein the first information comprises a first indoor environmental quality value based on at least one HVAC-related measurement and at least one gas concentration measurement, and wherein the metric value is based on a plurality of first indoor environmental quality values from the plurality of microsystems.

7. The arrangement of claim 1, wherein the network device comprises a microsystem operable to perform measurements and communicate information wirelessly to the data processor.

8. The arrangement of claim 1, wherein the network device is operable to communicate information to the data processor via at least one intermediate device, and wherein the network device is operable to communicate information wirelessly to the intermediate device.

10. The arrangement of claim 1, wherein the network device forms part of a field controller device, and wherein the data processor forms part of a control station remote from the field controller device.

11. The arrangement of claim 1, wherein each microsystem is operable to update and communicate the first information on an ongoing basis, and wherein the data processor is further configured to update the metric value of the indoor environmental quality on an ongoing basis.

21. The arrangement of claim 11, wherein the network device forms part of a field controller device, and the data processor forms a part of the field controller device.

9. The arrangement of claim I, wherein the network device forms part of a field controller device, and wherein the data processor forms part of the field controller device.

12. The arrangement of claim I wherein the data processor is further operable to:

generate control information based on the metric;

communicate the control information to at least one actuator.

13. An arrangement, comprising:

a plurality of wireless microsystems, each microsystem operable to measure a plurality of indoor environmental quality-related parameters and operable to communicate first information pertaining to the measured parameters wirelessly to a network device, at least one measured parameter selected from a group consisting of a total volatile organic compound measurement, a CO₂ measurement, a CO measurement, a light measurement and a sound measurement.

a data processor operably coupled to receive the first information from the network device, and further configured to generate a metric value of an indoor environmental quality of at least a first spaced based at least in part on the first information, the metric value dependent upon each of the measured parameters of at least one of the plurality of microsystems.

14. The arrangement of claim 13, wherein the central data processor is further operable to generate a metric value in the form of a statistic using a plurality of an indoor environmental quality (IEQ) index values, each IEQ index value having a value dependent upon each of the measured parameters of at least a first microsystem.

15. The arrangement of claim 14, wherein each microsystem is operable to generate an IEQ index value and provide the IEQ index in the first information.

16. The arrangement of claim 14, wherein the IEQ index value is dependent upon at least two measured parameters selected from a group consisting of a total volatile organic compound measurement, a CO₂ measurement, a CO measurement, a light measurement and a sound measurement.

17. The arrangement of claim 14, wherein the data processor is further operable to:

compare the metric value to a first threshold limit; and

generate a first alarm message based on whether the metric value exceeds the first threshold limit.

18. The arrangement of claim 17, wherein:

the data processor is further operable to generate alarm messages if at least one individual measured parameter exceeds a corresponding alarm threshold; and

the data processor is further is operable to generate the first alarm message based on whether the metric value exceeds the first threshold limit and each of the at least one individual measured parameters is less than the corresponding alarm threshold.

19. The arrangement of claim 18, wherein the data processor is further operable to generate a metric value in the form of a statistic using a plurality of an indoor environmental quality (IEQ) index values, each IEQ index value having a value dependent upon each of the measured parameters of at least a first microsystem.

20. The arrangement of claim 13, wherein the network device comprises a microsystem operable to perform measurements and communicate information wirelessly to the central data processor.

22. The arrangement of claim 13, wherein each microsystem is operable to update and communicate the first information on an ongoing basis, and wherein the central data processor is further configured to update the metric value of the indoor environmental quality on an ongoing basis.