JP2008057831A - Air conditioning control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the accuracy of a comfortability index value "PMV" to achieve comfort air conditioning by computing the radiation temperature using much actual measurement data by using estimated amount of solar radiation obtained by estimated operation when a solar radiation meter is in the shade, and using the measured amount of solar radiation obtained by the solar radiation meter in the other cases. <P>SOLUTION: When a ratio of a measured amount of solar radiation "I<SB>m</SB>(t)" obtained by the solar radiation meter 10 to the estimated amount solar radiation "I<SB>p</SB>(t)" obtained by a solar radiation amount estimating part 2 is under a preset measurement abnormality determination threshold value "H(t)", it is determined that the solar radiation meter 10 is in the shade due to an antenna installed on a rooftop of a building, and the estimated amount of solar radiation "I<SB>p</SB>(t)" obtained by the estimating operation is used to compute the comfortability index value "PMV". In the other cases, the measured amount of solar radiation "I<SB>m</SB>(t)" obtained by the solar radiation meter 10 is used to compute it. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioning control system that controls air conditioning using a comfort index value PMV.

  Conventionally, as a technique related to an air conditioning control device using the comfort index value PMV, Patent Nos. 3049266 and 3361017 are known.

  In these Patent Nos. 3049266 and 3361617, temperature, humidity, radiation temperature, air velocity, clothing amount, activity amount, etc. are used as variable inputs that affect the comfort index value PMV.

  At this time, if any of these temperatures, humidity, radiation temperature, airflow velocity, clothing amount, activity amount can not be measured, for example, if there is no average radiation thermometer, the amount of solar radiation incident on the building outer surface, the outside air temperature, The indoor temperature is used to predict the wall temperature change, and based on the prediction result, the radiation temperature is calculated to obtain the comfort index value PMV.

  However, in many buildings, the solar radiation meter is often not installed, and even if the solar radiation meter is installed, it cannot be measured accurately because it is behind the antenna, tank, etc. depending on the installation location. There are many cases.

  For this reason, as a method for obtaining the comfort index value PMV when no solar radiation meter is installed outdoors, it is manually input based on the date and time, the building position (latitude, longitude), and the previous day weather forecast. A method has also been proposed in which the amount of solar radiation is calculated from the morning / afternoon weather (sunny / cloudy / rainy) information, the amount of solar radiation is calculated, and the comfort index value PMV is obtained.

  In addition, the present inventor proposed an air conditioning control system for controlling air conditioning by predicting and calculating solar radiation amount without inputting daily weather information by estimating the cloud amount from the outside temperature change pattern and outside air humidity. (See FIG. 8).

The air conditioning control system 101 includes a temperature change detection unit 102 that detects a temperature change value of the outside air temperature “T” obtained by an outdoor thermometer, a temperature information database 103 that stores standard temperature change information according to cloud amount, and a calendar. Based on calendar information output from an IC or the like, standard temperature change information stored in the temperature information database 103, etc., a standard temperature calculation unit 104 that calculates a standard temperature change value of the day, and outside air obtained by an outdoor hygrometer Based on the humidity “H”, the standard temperature change value obtained by the standard temperature change calculation unit 104, the temperature change value obtained by the temperature change detection unit 102, etc., a cloud amount prediction calculation is performed to calculate a cloud amount prediction value “CC”. A cloud amount prediction unit 105 and a building parameter database 106 that stores building parameters (building latitude, longitude, direction of outer wall, area, etc.) relating to the building. , Calendar information output from such a calendar IC, based like the building parameters stored in the building parameter database 106, the total solar radiation amount prediction unit 107 for calculating the total solar radiation amount prediction value "I _0" for the building, the total solar radiation Based on the total solar radiation amount predicted value “I ₀ ” obtained by the amount prediction unit 107, the cloud amount prediction value “CC” obtained by the cloud amount prediction unit 105, the calculation shown in the following equation (1) is performed, A solar radiation amount predicting unit 108 for calculating the solar radiation amount “I”.

_{I = (1-CC) ·} I 0/10 ... (1)
Further, the air conditioning control system 101 includes the solar radiation amount “I” obtained by the solar radiation amount prediction unit 108, the outdoor air temperature “T” obtained by the outdoor thermometer, the building parameters stored in the building parameter database 106, and indoors. A radiation temperature calculation unit 109 that calculates the radiation temperature of the building based on the indoor temperature obtained by the provided indoor thermometer, an airflow parameter database 110 that stores airflow information (airflow parameters) for the building, and airflow parameters Airflow parameters stored in the database 110, radiation temperature obtained by the radiation temperature calculation unit 109, room temperature obtained by an indoor thermometer provided indoors, room humidity obtained by an indoor hygrometer provided indoors PMV performance that calculates the comfort index value “PMV” based on the amount of clothing and activity input from the keyboard 111, etc. Unit 112 and a set temperature calculation unit 113 that calculates the set temperature based on the comfort index value “PMV” obtained by the PMV calculation unit 112, controls the air conditioner, and adjusts the indoor temperature. .

  Then, it is stored in an outdoor thermometer installed on the rooftop of the building, the outdoor air temperature “T” obtained by the outdoor hygrometer, the outdoor air humidity “H”, the calendar information obtained by the calendar IC, and the temperature information database 103. The predicted cloud amount “CC” is predicted based on the standard temperature change information, the cloud amount predicted value “CC”, calendar information output from the calendar IC, the building parameters stored in the building parameter database 106, and the like. Based on the above, the solar radiation amount “I” for the building is calculated.

  Next, based on the outdoor temperature “T” obtained by the outdoor thermometer installed on the rooftop of the building, the indoor temperature obtained by the indoor thermometer, the building parameters stored in the building parameter database 103, etc., Calculates radiation temperature, radiation temperature obtained by this calculation process, room temperature obtained by indoor thermometer installed indoors, room humidity obtained by indoor hygrometer installed indoors, input from keyboard 111, etc. The comfort index value “PMV” is calculated based on the amount of clothes and activity, and the set temperature is calculated to adjust the room temperature.

Thereby, even when the solar radiation meter is not installed outdoors, the comfort index value “PMV” can be calculated, the optimum set temperature can be calculated, and the indoor temperature can be adjusted.
Japanese Patent No. 3049266 Japanese Patent No. 331017 Toshiba Review Vol.59No.4 (2004) P.40-43

  By the way, in the conventional air conditioning control system described above, from the manually input morning / afternoon weather (sunny / cloudy / rainy) information based on the date and time, the building position (latitude, longitude) and the previous day weather forecast. In the method of calculating the cloud amount, predicting the amount of solar radiation, and obtaining the comfort index value “PMV”, there is a problem that a person has to input weather information every day, which is troublesome.

  In addition, the outdoor temperature meter installed on the rooftop of the building, the outdoor temperature “T” obtained by the outdoor hygrometer, the outdoor humidity “H”, the calendar information obtained by the calendar IC, etc. are stored in the temperature information database 103. In the method of calculating the radiation temperature using the standard temperature change information stored in the building, the building parameter stored in the building parameter database 106, etc., even when the solar radiation meter is not installed outdoors, the comfort index value “ There is an advantage that the temperature in the room can be optimized by calculating PMV ″.

  However, if a solar radiation meter is installed outdoors, and it is in the shade of the antenna, tank, etc. depending on the installation location, and accurate solar radiation cannot be measured, the solar radiation meter installed outdoors can be used effectively. There was a demand for calculating a more accurate comfort index value “PMV” and optimizing the indoor temperature.

  In view of the above circumstances, an object of the present invention is to provide an air conditioning control system capable of realizing a comfortable air conditioning by greatly improving the accuracy of the comfort index value “PMV”.

  In order to achieve the above object, according to the present invention, in claim 1, the comfort index value PMV is calculated using a measured solar radiation amount obtained by a solar radiation meter placed in a predetermined place of the building or in the vicinity of the building. In addition, in the air conditioning control system that controls the air conditioning of the building based on the comfort index value PMV, a solar radiation amount predicting unit that calculates a predicted solar radiation amount by performing a preset prediction calculation, and the solar radiation amount prediction When the relationship between the predicted amount of solar radiation obtained by the unit and the amount of solar radiation measured by the solar radiation meter satisfies a preset condition, select the amount of solar radiation measured by the solar radiation meter. In addition, when the above conditions are not satisfied, the solar radiation amount estimating unit that selects the predicted solar radiation amount obtained by the solar radiation amount predicting unit, and the measured solar radiation amount or the predicted solar radiation amount selected by the solar radiation amount estimating unit are used. Comfort index It is characterized in that a PMV calculating unit for calculating the PMV.

  Further, in claim 2, the comfort index value PMV is calculated using the measured solar radiation amount obtained by a solar radiation meter arranged in a predetermined place of the building or in the vicinity of the building, and the comfort index value PMV is calculated. In the air conditioning control system for controlling the air conditioning of the building, the solar radiation blocking time based on the solar radiation amount predicting unit that calculates a predicted solar radiation amount by performing a preset prediction calculation, and the obstacle information for the solar radiation meter Calculate the band, select the predicted solar radiation amount obtained by the solar radiation amount prediction unit while the solar radiation meter is shaded by an obstacle, otherwise obtained by the solar radiation meter A solar radiation amount estimating unit for selecting the measured solar radiation amount, and a PMV calculation unit for calculating the comfort index value PMV using the measured solar radiation amount or the predicted solar radiation amount selected by the solar radiation amount estimating unit With features To have.

  According to the air conditioning control system according to the present invention, it is determined whether the solar radiation meter is shaded by an obstacle or the like, and when the solar radiation meter is shaded, the predicted solar radiation amount obtained by the prediction calculation is used. In other cases, the accuracy of the comfort index value “PMV” is greatly improved by using the measured solar radiation obtained with the solar radiation meter and performing radiation temperature calculation using a lot of measured data. Air conditioning can be realized.

  The air conditioning control system according to claim 2 calculates a time zone in which the solar radiation meter is shaded by the obstacle based on the position information of the obstacle with respect to the solar radiation meter, and based on the calculation result, When the meter is in the shade, use the predicted amount of solar radiation obtained by the prediction calculation, otherwise use the measured amount of solar radiation obtained by the solar radiation meter, and the radiation temperature using a lot of measured data By performing the calculation, it is possible to significantly improve the accuracy of the comfort index value “PMV” and realize comfortable air conditioning.

<< First Embodiment >>
FIG. 1 is a block diagram showing a first embodiment of an air conditioning control system according to the present invention.

The air conditioning control system 1 shown in this figure includes a solar radiation amount prediction unit 2, a solar radiation amount estimation unit 3, a building parameter database 4, a radiation temperature calculation unit 5, a clothing amount / activity amount input unit 6, and an airflow parameter database. 7, a PMV calculation unit 8, and a set temperature calculation unit 9. The measured solar radiation amount “I _m (t)” obtained by the solar radiation meter 10 installed on the rooftop of the building, and the solar radiation amount It is determined whether the ratio of the predicted solar radiation amount “I _p ” obtained by the prediction unit 2 satisfies a predetermined condition, and whether the measured solar radiation amount “I _m (t)” is an accurate measured value. When the measured solar radiation amount “I _m (t)” obtained by the solar radiation meter 10 is accurate, the measured solar radiation amount “I _m (t)” is used to calculate the radiation temperature, Also, the solar radiation meter 10 is shaded by an antenna or the like provided on the rooftop, etc. When the measured solar radiation “I _m (t)” becomes inaccurate, the predicted solar radiation “I _p ” obtained by the prediction operation is used to calculate the radiation temperature, and the solar radiation meter 10 temporarily Even in the shaded area, an accurate comfort index value “PMV” is generated to control the air conditioning of the building.

As shown in FIG. 2, the solar radiation amount prediction unit 2 includes a temperature change detection unit 13 that detects a temperature change value of the outdoor air temperature “T (t)” obtained by an outdoor thermometer at each time, and a standard temperature based on cloud cover. Standard temperature for calculating the standard temperature change value of the day based on the temperature information database 14 storing the change information, the calendar information output from the calendar IC and the like, the standard temperature change information stored in the temperature information database 14, etc. The outside air humidity “H (t)” obtained by the calculation unit 15 and the outdoor hygrometer at each time, the standard temperature change value obtained by the standard temperature calculation unit 15, and the temperature change obtained by the temperature change detection unit 13 Cloud amount prediction unit 16 that calculates cloud amount prediction value “CC (t)” at each time by performing cloud amount prediction calculation based on the value and the like, and building parameters (building latitude, longitude, direction of outer wall, area, etc.) The building parameters that are stored Calculating a data database 17, the calendar information output from such a calendar IC, based like the building parameters stored in the building parameter database 17, the total solar radiation predicted value for each time point for building "I 0 _(t)" to The total solar radiation amount calculation unit 18, the total solar radiation amount prediction value “I ₀ (t)” obtained by the total solar radiation amount calculation unit 18, the cloud amount prediction value “CC (t)” obtained by the cloud amount prediction unit 16, etc. And a solar radiation amount predicting unit 19 that calculates the predicted solar radiation amount “I _p (t)” for each time with respect to the building.

I _p (t) = (1−CC (t)) · I ₀ (t) / 10 (2)
And outdoor temperature meter installed on the rooftop of the building, outdoor air temperature “T (t)” obtained by outdoor hygrometer, outdoor air humidity “H (t)”, calendar information obtained by calendar IC, etc., temperature After predicting the cloud cover predicted value “CC (t)” based on the standard temperature change information stored in the information database 14, the cloud cover predicted value “CC (t)”, calendar information output from the calendar IC, etc. Based on the building parameters stored in the building parameter database 17, the predicted solar radiation amount “I _p (t)” for each time for the building is calculated and supplied to the solar radiation amount estimating unit 3.

The solar radiation amount estimation unit 3 sets the measured solar radiation amount “I _m (t)” obtained by the solar radiation meter 10 and the predicted solar radiation amount “I _p (t)” supplied from the solar radiation amount prediction unit 2 in advance. The measured abnormality judgment threshold value “H” is taken in, and the ratio between the measured solar radiation amount “I _m (t)” and the predicted solar radiation amount “I _p (t)” is measured using the following formula: It is determined whether or not the abnormality determination threshold is “H” or more.

When the ratio of the measured solar radiation amount “I _m (t)” and the predicted solar radiation amount “I _p (t)” is equal to or greater than the measurement abnormality determination threshold “H”, the solar radiation meter 10 obtained It is determined that the measured solar radiation amount “I _m (t)” is normal, the measured solar radiation amount “I _m (t)” is selected, and the measured solar radiation amount “I _m (t)” and the predicted solar radiation amount “ When the ratio with “I _p (t)” is less than the measurement abnormality determination threshold “H”, it is determined that the measured solar radiation amount “I _m (t)” obtained by the solar radiation meter 10 is abnormal. The predicted solar radiation amount “I _p (t)” is selected, and the selected measured solar radiation amount “I _m (t)” or the predicted solar radiation amount “I _p (t)” is set as the solar radiation amount “I _a (t)”. The radiation temperature calculation unit 5 is supplied.

As a result, when there is a time zone in which the solar radiation meter 10 is shaded with an antenna or the like provided on the rooftop or the like, for example, as shown in FIG. 3, between “5 am” and “8 am” At 10 am, the measured solar radiation “I _m (t)” obtained by the solar radiation meter 10 becomes inaccurate, between “5 am” and “8 am” and “10 am As shown in FIG. 4, the measured solar radiation amount “I _m (t)” obtained by the solar radiation meter 10 and the predicted solar radiation amount “I _p (t)” supplied from the solar radiation amount prediction unit 2 As shown in FIG. 5, while the ratio of the measured solar radiation amount “I _m (t)” and the predicted solar radiation amount “I _p (t)” is lower than the measurement abnormality determination threshold value “H”, is selected predicted insolation "I p _(t)" supplied from the solar radiation amount prediction unit 2, and in a time zone other than it, measures the amount of solar radiation was obtained by solar radiation meter 10 "I _m" is selected Are, among as measured solar radiation amount for each time obtained in solar radiation meter 10 "I m _(t)" shown in FIG. 6, and until "AM 8:00" to "5:00 am", "am A solar radiation amount “I _a (t)” at each time in which the “10 o'clock” portion is corrected is generated and supplied to the radiation temperature calculation unit 5.

  The building parameter database 4 stores building-related parameters (building parameters indicating the latitude and longitude of the building, the direction of the outer wall, the area, etc.) and stores them in response to a read request from the radiation temperature calculation unit 5. The building parameters are read out and supplied to the radiation temperature calculator 5.

The radiation temperature calculation unit 5 stores the solar radiation amount “I _a (t)” obtained by the solar radiation amount estimation unit 3, the outside air temperature “T (t)” obtained by the outdoor thermometer, and the building parameter database 4. The building parameters, the indoor temperature obtained by the indoor thermometer provided indoors, and the like are taken in, the radiation temperature of the building is calculated using a preset arithmetic expression, and supplied to the PMV calculation unit 8.

  The clothing amount / activity amount input unit 6 includes a keyboard and the like, and supplies the PMV calculation unit 6 with the clothing amount, activity amount, and the like of people in the building input by an operator or the like.

  The airflow parameter database 7 stores airflow information (airflow parameters) for the building, reads the stored airflow parameters in response to a read request from the PMV operation unit 8, and supplies the read airflow parameters to the PMV operation unit 8.

  The PMV calculation unit 8 includes an air flow parameter stored in the air flow parameter database 7, a radiation temperature obtained by the radiation temperature calculation unit 5, an indoor temperature obtained by an indoor thermometer provided indoors, and provided indoors. The indoor humidity obtained by the hygrometer, the amount of clothing supplied from the clothing amount / activity amount input unit 6, the amount of activity, etc. are taken in, and the comfort index value “PMV” is calculated using a preset equation. , And supplied to the set temperature calculator 9.

  The set temperature calculation unit 9 takes in the comfort index value “PMV” obtained by the PMV calculation unit 8, calculates the set temperature using a preset calculation formula, and performs air conditioning according to the set temperature. Control the equipment and adjust the room temperature.

Thus, in the first embodiment, the measured solar radiation amount “I _m (t)” obtained by the solar radiation meter 10 and the predicted solar radiation amount “I _p (t)” supplied from the solar radiation amount prediction unit 2 When the ratio is less than the preset measurement abnormality determination threshold “H (t)”, it is determined that the solar radiation meter 10 is shaded by an antenna installed on the rooftop of the building. Then, the predicted solar radiation amount “I _p (t)” obtained by the prediction operation is used. In other cases, the comfort index value “PMV” is calculated using the measured solar radiation “I _m (t)” obtained by the solar radiation meter 10. As a result, the accuracy of the comfort index value “PMV” can be greatly improved, and comfortable air conditioning can be realized.

<< Second Embodiment >>
FIG. 7 is a block diagram showing a second embodiment of the air conditioning control system according to the present invention. In this figure, the same reference numerals are given to the parts corresponding to those in FIG.

The air conditioning control system 21 shown in this figure is different from the air conditioning control system 1 shown in FIG. 1 in that the measured solar radiation amount “I _m () obtained by the solar radiation meter 10 using the measurement abnormality determination threshold value“ H ”. t) Instead of the solar radiation amount estimation unit 3 for determining whether or not “normal”, the solar radiation cutoff time zone is automatically calculated based on the obstacle conditions such as the direction and angle of the obstacle with respect to the solar radiation meter 10. Based on the calculation result, the solar radiation amount “I _a (t)” at each time is generated by combining the measured solar radiation amount “I _m (t)” or the predicted solar radiation amount “I _p (t)”. The solar radiation amount estimation unit 22 is provided.

That is, in the second embodiment, the solar radiation blocking time zone is automatically calculated based on the obstacle conditions set such as the azimuth and angle of the obstacle with respect to the solar radiation meter 10, and the solar radiation amount is measured by the obstacle such as an antenna. While the total 10 is in the shade, the comfort index value “PMV” is calculated using the predicted solar radiation amount “I _p (t)” obtained by the prediction operation. In other cases, the comfort index value “PMV” is calculated using the measured solar radiation “I _m (t)” obtained by the solar radiation meter 10.

  For this reason, the accuracy of the comfort index value “PMV” can be greatly improved, and comfortable air conditioning can be realized.

It is a block diagram which shows 1st Embodiment of the air-conditioning control system by this invention. It is a block diagram which shows the detailed circuit structural example of the solar radiation amount estimation part shown in FIG. It is a graph which shows the actual example of the measurement solar radiation amount " _Im (t)" input into the solar radiation amount estimation part shown in FIG. 3 is a graph showing an example of a measured solar radiation amount “I _m (t)” and a predicted solar radiation amount “I _p (t)” input to the solar radiation amount estimating unit shown in FIG. 1. It is a graph which shows the example of a determination operation | movement of the solar radiation amount estimation part shown in FIG. The measured solar radiation amount “I _m (t)”, the predicted solar radiation amount “I _p (t)” input to the solar radiation amount estimation unit shown in FIG. 1, and the solar radiation amount “I _a (t ) ”. It is a block diagram which shows 2nd Embodiment of the air-conditioning control system by this invention. It is a block diagram which shows an example of the conventionally known air-conditioning control system.

Explanation of symbols

1: Air conditioning control system 2: Solar radiation amount prediction unit 3: Solar radiation amount estimation unit 4: Building parameter database 5: Radiation temperature calculation unit 6: Clothing amount / activity amount input unit 7: Airflow parameter database 8: PMV calculation unit 9: Setting Temperature calculation unit 10: Solar radiation meter 13: Temperature change detection unit 14: Temperature information database 15: Standard temperature calculation unit 16: Cloud amount prediction unit 17: Building parameter database 18: Total solar radiation amount calculation unit 19: Solar radiation amount prediction unit 21: Air conditioning control system 22: Solar radiation estimation unit

Claims (2)

A comfort index value PMV is calculated using a measured solar radiation amount obtained by a solar radiation meter placed in a predetermined place of the building or in the vicinity of the building, and the air conditioning of the building is controlled based on the comfort index value PMV. In the air conditioning control system to control,
A solar radiation amount predicting unit that calculates a predicted solar radiation amount by performing a preset prediction calculation;
When the relationship between the predicted solar radiation amount obtained by the solar radiation amount prediction unit and the measured solar radiation amount obtained by the solar radiation meter satisfies a preset condition, the measured solar radiation amount obtained by the solar radiation meter A solar radiation amount estimating unit that selects a predicted solar radiation amount obtained by the solar radiation amount predicting unit when the amount is selected and the condition is not satisfied;
A PMV calculating unit that calculates the comfort index value PMV using the measured solar radiation amount or the predicted solar radiation amount selected by the solar radiation amount estimating unit;
An air conditioning control system characterized by comprising: A comfort index value PMV is calculated using a measured solar radiation amount obtained by a solar radiation meter placed in a predetermined place of the building or in the vicinity of the building, and the air conditioning of the building is controlled based on the comfort index value PMV. In the air conditioning control system to control,
A solar radiation amount predicting unit that calculates a predicted solar radiation amount by performing a preset prediction calculation;
Based on the obstacle information for the solar radiation meter, calculate the solar radiation blocking time zone, and select the predicted solar radiation amount obtained by the solar radiation amount prediction unit while the solar radiation meter is shaded by the obstacle. In other cases, a solar radiation amount estimating unit that selects the measured solar radiation amount obtained by the solar radiation meter,
A PMV calculating unit that calculates the comfort index value PMV using the measured solar radiation amount or the predicted solar radiation amount selected by the solar radiation amount estimating unit;
An air conditioning control system characterized by comprising:

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