1. A transfer function estimation apparatus for estimating a transfer function of a measurement target object having a plurality of divided systems, the transfer function estimation apparatus comprising:
an estimation equation acquisition section that acquires an estimation equation to estimate the transfer function of the measurement target object determined in accordance with the number of divided systems of the measurement target object and a connection form of the divided systems of the measurement target object;
a frequency response characteristic acquisition section that acquires frequency response characteristics which are obtained by converting acceleration data into data in a frequency domain, wherein the acceleration data are data of acceleration that is output from a predetermined output point of the measurement target object in response to input of an impact force to a predetermined input point of the measurement target object, wherein the frequency response characteristics include gain and phase associated with the input to and the output from the measurement target object;
a four arithmetic operation determination section that determines, using a computer processor, for each arithmetic operation in the estimation equation, whether the arithmetic operation is an addition-subtraction or a multiplication-division;
a multiplication-division section that,
in cases where the four arithmetic operation determination section determines that the arithmetic operation is the multiplication-division,
performs the multiplication-division of the frequency response characteristics in the frequency domain;
a conversion section that,
in cases where the four arithmetic operation determination section determines that the arithmetic operation is the addition-subtraction,
converts the frequency response characteristics, which are targeted for the addition-subtraction, into time response characteristics to thereby calculate the time response characteristics, which are data in a time domain;
an addition-subtraction section that performs the addition-subtraction of the time response characteristics in the time domain; and
a reconversion section that reconverts a result of the addition-subtraction performed by the addition-subtraction section into the frequency domain.
2. The transfer function estimation apparatus according to claim 1, wherein:
the conversion section includes
a trigonometric function calculation section that, at predetermined frequency intervals, calculates, as a time response, a trigonometric function that is based on the gain and the phase, and
an adding section that calculates the time response characteristics by adding the time responses at all frequencies calculated by the trigonometric function calculation section.
3. The transfer function estimation apparatus according to claim 2, further comprising:
a virtual input waveform acquisition section that acquires a virtual input gain and a virtual input phase of a virtual input waveform that are used for converting the frequency response characteristic into the time domain;
a correction section that corrects the frequency response characteristic by using the virtual input gain and the virtual input phase, thereby providing a corrected gain and a corrected phase; and
a recorrection section that recorrects, by using the virtual input gain and the virtual input phase, the result of the addition-subtraction reconverted into the frequency domain by the reconversion section,
wherein:
the trigonometric function calculation section calculates, as the time response, a trigonometric function that is based on the corrected gain and the corrected phase provided by the correction section.
4. The transfer function estimation apparatus according to claim 1, wherein:
the frequency response characteristics acquired by the frequency response characteristic acquisition section include:
an in-divided-system response characteristic associated with a physical quantity transmitted to an output point of each divided system in response to input of a force to an input point of the each divided system; and
a node frequency response characteristic associated with a physical quantity transmitted to a connection point between one divided system and another divided system in response to input of a force to the connection point.
5. The transfer function estimation apparatus according to claim 1, wherein the transfer function estimation apparatus is configured to perform sound or vibration simulation of the measurement target object.
6. The transfer function estimation method according to claim 1, further comprising performing sound or vibration simulation of the measurement target object.
7. A transfer function estimation method for estimating a transfer function of a measurement target object having a plurality of divided systems, the transfer function estimation method comprising:
acquiring an estimation equation to estimate the transfer function of the measurement target object, the transfer function being determined in accordance with the number of divided systems of the measurement target object and a connection manner of the divided systems of the measurement target object;
acquiring frequency response characteristics which are obtained by converting acceleration data into data in a frequency domain, wherein the acceleration data are data of acceleration that is output from a predetermined output point of the measurement target object in response to input of an impact force to a predetermined input point of the measurement target object, wherein the frequency response characteristics include gain and phase associated with the input to and the output from the measurement target object;
determining, using a computer processor, for each arithmetic operation in the estimation equation, whether the arithmetic operation is an addition-subtraction or a multiplication-division;
in cases where it is determined that the arithmetic operation is the multiplication-division, performing the multiplication-division of the frequency response characteristics in the frequency domain;
in cases where it is determined that the arithmetic operation is the addition-subtraction, converting the frequency response characteristics, which are targeted for the addition-subtraction, into time response characteristics, thereby calculating the time response characteristics, which are data in a time domain;
performing the addition-subtraction of the time response characteristics in the time domain; and
reconverting a result of the addition-subtraction into the frequency domain.
8. A non-transitory computer readable storage medium storing a computer-executable program that causes a computer to execute the transfer function estimation method recited in claim 7.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An arrangement for use in a control system within a building, the control system having system outputs corresponding to a set of operating parameters, the arrangement comprising:
a plurality of sensor microsystems configured to obtain environmental information regarding a plurality of areas in the building; while said building is operating on-line;
a processing circuit configured to
obtain data representative of the environmental information regarding the plurality of areas in the building operating on-line under a first set of operating parameter values corresponding to the set of operating parameters;
cause the building control system to operate on-line under a second set of operating parameter values, wherein a first parameter of the set of operating parameters has a changed value;
obtain data representative of the environmental information regarding the plurality of areas in the building operating on-line under the second set of operating parameter values;
store the data representative of the environmental information under the second set of operating parameter values in a knowledge base;
at a subsequent time, employ the knowledge base to generate a subsequent set of operating parameter values.
2. The arrangement of claim 1, wherein the first parameter set of operating parameter values includes information representative of a supply air temperature set point for the building control system.
3. The arrangement of claim 1, wherein the first set of operating parameter values includes a lighting set point for the building control system.
4. The arrangement of claim 1, wherein the first set of operating parameter values includes information relating to a fresh air mixture of supply air for the building control system.
5. The arrangement of claim 1, further comprising a communication link between each microsystem and the processing circuit.
6. The arrangement of claim 5, wherein at least a first microsystem forms a part of a communication link between a second microsystem and the processing circuit.
7. The arrangement of claim 1, wherein the plurality of microsystems includes at least one wireless microsystem.
8. The arrangement of claim 7, wherein each of the plurality of microsystems include at least one MEMS sensor.
9. The arrangement of claim 1, wherein each of the plurality of microsystems include at least one MEMS sensor.
10. The arrangement of claim 1, wherein the environmental information regarding the plurality of areas in the building include information based on temperature, humidity and content of at least one gas.
11. An arrangement for use in a control system within a building, comprising:
a plurality of sensor microsystems operable to obtain environmental information regarding a plurality of areas in the building; while said building is operating on-line;
a processing circuit operable to store data representative of the obtained environmental information regarding the plurality of areas in the building in a knowledge base, said knowledge base correlating obtained environmental information to each of a plurality of operation conditions to which the obtained environmental information corresponds, and employ the knowledge base to adjust operating parameter values of at least one device in the building control system; while said building is operating on-line;
wherein the plurality of sensor microsystems are at least indirectly coupled to the processing circuit via wireless links.
12. The arrangement of claim 11, wherein the knowledge base correlates operating parameters of at least one device with information regarding measured conditions within the building.
13. The arrangement of claim 12, wherein the knowledge base further correlate operating parameters with corresponding energy efficiency information.
14. The arrangement of claim 12, wherein each of a set of microsystems of the plurality of microsystems includes a MEMS temperature sensor.
15. The arrangement of claim 14, wherein each of the set of microsystems includes a MEMS humidity sensor.
16. The arrangement of claim 15, wherein each of the set of microsystems includes at least one additional sensor.
17. The arrangement of claim 15, wherein each of the set of microsystems includes an RF circuit.
18. A method for use in a building control system having system outputs corresponding to a set of operating parameters, the method comprising:
a) obtaining environmental information regarding a plurality of areas in a building using a plurality of sensor microsystems, the building operating on-line under a first set of operating parameter values corresponding to the set of operating parameters for a building control system;
b) causing the building control system to operate on-line under a second set of operating parameter values, wherein a first parameter of the set of operating parameters to has a changed value;
c) obtaining second environmental information regarding the plurality of areas under the second set of operating parameter values;
d) storing data representative of the second environmental information under the second set of operating parameter values in a knowledge base; and
e) at a subsequent time, employing the knowledge base to generate a subsequent set of operating parameter values.
19. The method of claim 18, wherein step d) further comprises correlating the data representative of the second environmental information with information representative of the second set of operating parameter values in the knowledge base.
20. The method of claim 19, wherein step d) further comprises correlating data representative of energy consumption with the second set of operating parameter values in the knowledge base.