WO2016075877A1

WO2016075877A1 - Heat insulating performance estimation device and program

Info

Publication number: WO2016075877A1
Application number: PCT/JP2015/005360
Authority: WO
Inventors: 祐司尾崎; 小林　晋; 雅和足立; 室　直樹; 薮ノ内　伸晃; 遥仲宗根
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2014-11-13
Filing date: 2015-10-26
Publication date: 2016-05-19
Also published as: JP2016094715A; JP6384791B2

Abstract

This heat insulating performance estimation device (10) is provided with a first acquiring unit (11), a second acquiring unit (12), a pre-determination unit (15), and a calculation unit (13). The first acquiring unit (11) acquires temperature information on the temperature at the inside (21) and the outside (22) of a building (20). The second acquiring unit (12) acquires caloric information on an energy amount consumed by a cooling apparatus or a heating apparatus which changes the inside (21) temperature. The pre-determination unit (15) determines whether or not the temperature information and the caloric information satisfy predetermined determination conditions. The calculation unit (13) calculates the heat insulating performance of the building (20) by using the temperature information and the caloric information when the predetermined determination conditions are satisfied.

Description

Thermal insulation performance estimation device and program

The present invention relates to an adiabatic performance estimation device for estimating the thermal insulation performance of a building, and a program for causing a computer to function as the adiabatic performance estimation device.

Conventionally, in order to measure the insulation performance of a building such as a house, the temperature of the inside of the building, the temperature outside the building, and the energy consumption of equipment and equipment are measured, and the history of the measured data is used A technique for analyzing thermal insulation performance has been proposed (see, for example, Patent Document 1).

Patent Document 1 describes the effects of the operation of air conditioners such as heating and cooling, heat generation by people, opening and closing of windows and doors, the operation of electric devices such as lighting devices, televisions, and refrigerators, and the operation of heating devices. It has been described that the heat insulation performance is measured by selecting a small period of time. In addition, Patent Document 1 exemplifies such a time when it is late in the spring or autumn and there are no residents. In Patent Document 1, there is no need to use an air conditioner at such a time, heat generation by human activity is small, windows and doors are not opened, and switches such as lighting devices and televisions are turned off. It is explained that it is time.

Furthermore, according to Patent Document 1, when the heat generating device is operated and the room temperature reaches a certain temperature, the temperature inside the house and the temperature outside are measured, and the power consumption of the heat generating device is converted to the heat generation amount. Have been described. Further, it is described that the heat loss coefficient is determined for the evaluation of the heat insulation performance from the relationship between the temperature difference between the inside and outside of the house and the calorific value. In Patent Document 1, the fact that the room temperature has reached a constant temperature is determined from the measurement value of the temperature and humidity sensor.

JP, 2010-242487, A

As described above, Patent Document 1 describes a technology for evaluating the heat insulation performance of a building by selecting a time, and a technology for evaluating the heat insulation performance of the building in a state where the heat generating apparatus is operated.

By the way, although it is necessary to consider the amount of heat in the room when determining the heat insulation performance, the amount of heat in the room fluctuates due to various factors, so it is difficult to measure it accurately. Therefore, in Patent Document 1, a specific time is selected, or a room temperature is allowed to reach a constant temperature by a heating device.

However, as in the technique described in Patent Document 1, it is possible to accurately measure the amount of heat in the room even when attention is paid to the time of acquiring information used for calculation of heat insulation performance or the environment when acquiring the information. Not exclusively. That is, with the technology described in Patent Document 1, it can not be said that high reliability is obtained for the calculation result of the heat insulation performance.

An object of the present invention is to provide an adiabatic performance estimation device capable of improving the reliability of calculation results with respect to adiabatic performance, and a program for causing a computer to function as the adiabatic performance estimation device.

The heat insulation performance estimation apparatus according to the present invention includes a first acquisition unit that acquires temperature information on indoor and outdoor temperatures in a building, and heat quantity information on the amount of energy consumed by a cooling device or heating device that changes the indoor temperature. The temperature information determined to satisfy the determination condition, and a predetermination unit determining whether the temperature information and the heat amount information satisfy a predetermined determination condition; And the heat quantity information to calculate the heat insulation performance of the building.

A program according to the present invention is for causing a computer to function as a thermal insulation performance estimation device.

In the configuration of the present invention, the pre-determination unit determines whether the determination condition is satisfied with respect to temperature information and heat amount information used by the calculation unit for calculation. Therefore, by setting appropriate determination conditions, it becomes possible to sort out temperature information and heat amount information that are not suitable for calculation. As a result, it has the advantage of being able to improve the reliability of the calculation result of the calculation unit.

FIG. 1 is a block diagram showing the entire configuration including the heat insulation performance estimation device according to the embodiment. FIG. 2 is a view showing an arrangement example of the device in the embodiment. Drawing 3 is a figure showing an example of indoor temperature change at the time of heating operation of an air-conditioning system concerning an embodiment. FIG. 4 is a diagram showing an operation example in the case of intermittently operating the air conditioner according to the embodiment. FIG. 5 is a flowchart of the operation of the heat insulation performance estimation apparatus according to the embodiment.

(Embodiment)
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below are all inclusive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Moreover, among the components in the following embodiments, components not described in the independent claim showing the highest level concept are described as optional components.

Each figure is a schematic view, and is not necessarily illustrated strictly. Further, in the drawings, substantially the same configuration will be denoted by the same reference numeral, and overlapping description may be omitted or simplified.

The heat insulation performance estimation device described below is a device that estimates an evaluation value representing the heat insulation performance of a building by evaluating the amount of heat entering and leaving the indoor space through a ceiling and a wall surrounding the indoor space. In the present embodiment, the evaluation value of the heat insulation performance is a heat loss coefficient obtained by dividing the total amount of heat loss by the indoor total floor area. The evaluation value of the thermal insulation performance is not limited to the heat loss coefficient. For example, the evaluation value of the thermal insulation performance may be an average skin heat transfer coefficient, thermal resistance, and the like.

As shown in FIG. 1, the heat insulation performance estimation device 10 includes a first acquisition unit 11 and a second acquisition unit 12. The first acquisition unit 11 acquires temperature information on the temperatures of the indoor 21 and the outdoor 22 (see FIG. 2). The second acquisition unit 12 acquires heat amount information regarding the amount of energy consumed by the cooling device or the heating device that changes the temperature of the indoor space 21. In the present embodiment, the indoor space 21 represents the interior space of the building 20, and the outdoor space 22 represents the outside of the building 20.

However, the internal space of the building 20 treated as the indoor 21 may be the entire internal space of the building 20 or a part of the internal space of the building 20. In other words, all the walls (including the ceiling and the floor) surrounding the interior space do not have to be the boundaries with the exterior of the building 20, and some walls surrounding the interior space are the boundaries with the exterior of the building 20 It is also good. In this case, instead of the heat insulation performance of the building 20, the heat insulation performance of the room of interest is required. Note that both the indoor 21 and the outdoor 22 may be the interior space of the building 20. That is, both the space handled as the indoor 21 and the space handled as the outdoor 22 may be included in the internal space of the building 20.

It is desirable that the temperature of the space treated as the outdoor 22 be uniform, but in reality it is often nonuniform. Therefore, as the temperature of the outdoor 22, either a representative value selected from an average value, a median value, a maximum value, and a minimum value of temperatures measured at a plurality of places, or a temperature measured at a specific place Used. Alternatively, the temperature of the outdoor 22 may be the temperature of the area where the building 20 exists, which is announced as weather information.

Here, the temperature of the indoor 21 and the temperature of the outdoor 22 mean the temperature. However, the temperature of the indoor 21 is the temperature of the surface of the indoor 21 in the wall (including the ceiling and the floor) that is the boundary between the indoor 21 and the outdoor 22. The temperature of the outdoor 22 is the temperature of the surface of the outdoor 22 in the wall It may be a temperature.

Below, the temperature sensor 31 arrange | positioned indoor 21 measures the temperature of indoor 21, and the temperature sensor 32 arrange | positioned outdoors 22 demonstrates using the example of a structure which measures the temperature of the outdoors 22. FIG. That is, the first acquisition unit 11 acquires the temperature of the indoor space 21 measured by the temperature sensor 31 and the temperature of the outdoor space 22 measured by the temperature sensor 32 as temperature information.

Both the indoor 21 and the outdoor 22 have a temperature distribution. Therefore, it is desirable that a plurality of temperature sensors 31 and a plurality of temperature sensors 32 be provided. In this case, a representative value of values measured by the plurality of temperature sensors 31 is used as the temperature of the indoor space 21, and a representative value of values measured by the plurality of temperature sensors 32 is used as the temperature of the outdoor 22. The representative value is selected from an average value, a weighted average value, and a mode value.

Now, if the indoor 21 and the outdoor 22 are in thermal equilibrium, the temperature difference between the indoor 21 and the outdoor 22 is proportional to the amount of heat moving through the wall that is the boundary between the indoor 21 and the outdoor 22. That is, assuming that the temperature of the indoor 21 is Ti and the temperature of the outdoor 22 is To, the heat quantity Q1 moving through the wall is represented by Q1 = K | Ti−To |. Here, K is a heat transmission coefficient, which changes according to the heat insulation performance.

If Ti> To, heat is transferred from the indoor 21 to the outdoor 22. If Ti <To, heat is transferred from the outdoor 22 to the indoor 21. Moreover, in this embodiment, although a heat loss coefficient is used as an evaluation value of heat insulation performance, a heat loss coefficient is calculated | required using a heat transmission coefficient. That is, the same relationship is established when obtaining the heat loss coefficient.

In many cases, the heating device is operated indoors 21 to heat in winter, and the cooling device indoors 21 to cool in summer. When a heating device or a cooling device (hereinafter referred to as a "heat source") is operated, a clear temperature difference occurs between the indoor 21 and the outdoor 22. Therefore, if the heat source is in operation and the indoor 21 and the outdoor 22 are in thermal equilibrium, the heat quantity Q1 moved through the wall is equal to the heat quantity Q2 generated from the heat source. That is, in the thermal equilibrium state, Q2 = Q1 = K | Ti-To |.

Since the heat source consumes energy selected from electric power, gas, fuel (kerosene, gasoline), etc. to generate heat or absorb heat, the heat quantity Q2 generated by the heat source is determined from the amount of energy consumed by the heat source and the energy from the heat source It is obtained from the heat conversion efficiency. As a conversion efficiency, for example, a coefficient of performance (COP: Coefficient Of Performance) is used. Now, assuming that the amount of energy consumed by the heat source in the thermal equilibrium state (for example, the amount of power consumption) is E and the conversion efficiency is η, Q2 == · E. The characteristics of the conversion efficiency η are substantially determined by the specification of the heat source, and there are fluctuations due to various conditions, but may be treated as constant values in the thermal equilibrium state. The heat quantity Q2 may be a cold heat quantity instead of a warm heat quantity.

In the following, the air conditioner 41 that consumes electric power, and the air conditioner 41 disposed in the indoor 21 is a heat source, and a configuration in which the measuring device 33 measures the size of the power consumption of the air conditioner 41 will be described as an example. . The measuring device 33 measures the power consumption for each unit time. The heat insulation performance estimation device 10 acquires the power consumption E measured by the measurement device 33 by the second acquisition unit 12 as the heat amount information.

The unit time is selected, for example, in the range of 1 second to 30 minutes. The unit time should be short, but as the unit time is short, the amount of data handled by the adiabatic performance estimation apparatus 10 increases and the processing load increases. On the other hand, although the small-sized air conditioner 41 for houses etc. is continuously operated until the temperature of the indoor 21 reaches the set temperature, it is configured to be intermittently operated when the thermal equilibrium state is reached. Often In consideration of such an operation of the air conditioner 41, it is desirable to select a unit time for measuring the power consumption from a range of about 30 seconds to 5 minutes.

Of course, the unit time may be appropriately selected, and the above-mentioned numerical values are an example. Also, the unit time for acquiring temperature information and the unit time for acquiring heat quantity information may be different. The heat quantity information is power consumption and may fluctuate in a short time. However, since the temperature information changes relatively slowly, when making the unit time different, the unit time of the heat quantity information may be set short.

Since the coefficient of performance η of the air conditioner 41 is known, the heat quantity Q2 generated by the air conditioner 41 can be obtained as η · E if the power consumption E measured by the measuring device 33 is used.

When the indoors 21 and the outdoor 22 are in thermal equilibrium, η · E = K | Ti−To | holds. Therefore, the heat transmission coefficient K, which is an unknown quantity, can be obtained from the power consumption E. That is, when the power consumption E of the air conditioner 41 and the temperature Ti of the indoor 21 and the temperature To of the outdoor 22 are known, the heat insulating performance of the building 20 is required.

As described above, the heat insulation performance estimation device 10 includes the first acquisition unit 11 that acquires temperature information, and the second acquisition unit 12 that acquires heat amount information. The heat insulation performance of the building 20 is calculated by the calculation unit 13 according to the above-described relational expression using temperature information and heat amount information.

By the way, in the operation example mentioned above, it is presupposed that the calculation unit 13 uses the temperature information and the heat quantity information obtained in the thermal equilibrium state. Therefore, the adiabatic performance estimation apparatus 10 needs to have a configuration to determine whether or not it is in a thermal equilibrium state.

Therefore, the heat insulation performance estimation device 10 determines whether or not the thermal equilibrium state is used using the storage unit 14 storing temperature information and heat amount information as time series information, and the temperature information and heat amount information stored in the storage unit 14 And a pre-determination unit 15. The calculation unit 13 uses the temperature information and the heat amount information acquired during the period when the pre-determination unit 15 determines that the heat equilibrium state is stored among the temperature information and the heat amount information stored in the storage unit 14. Calculate

The storage unit 14 stores a storage area such as a coefficient of performance η that stores a constant value necessary for the calculation of adiabatic performance, and a state of a factor (disturbance) that affects the heat quantity of the indoor 21 besides the air conditioner 41. And an area. The constant value is registered in the storage unit 14 as an additional condition using the input device 42. The input device 42 may be a dedicated device attached to the heat insulation performance estimation device 10 or a terminal device selected from a smartphone, a tablet terminal, a personal computer, and the like. The disturbance will be described later.

The pre-determination unit 15 evaluates whether the time series of the temperature information and the heat amount information stored in the storage unit 14 is suitable for the calculation of the adiabatic performance. Here, it demonstrates using the example which heats with the air conditioner 41. FIG. Now, as shown in FIG. 3, it is assumed that the air conditioner 41 starts operation at time t1 and ends operation at time t3. In the example shown in FIG. 3, it is assumed that the temperature To of the outdoor 22 does not fluctuate significantly.

In this case, the temperature Ti of the indoor 21 gradually increases from time t1, and the temperature Ti gradually decreases from time t3. Also, if the time from time t1 to time t3 is sufficiently long (for example, if it is 10 minutes or more), the temperature Ti is the operation of the air conditioner 41 in the period from time t2 to time t3 after time t1. Is maintained almost constant. Furthermore, at time t4 after time t3, the temperature Ti of the indoor 21 becomes the temperature in the state where the air conditioner 41 is not operating.

In the example of FIG. 3, the temperature Ti hardly changes during the period from time t2 to time t3. That is, it can be said that this period is in a thermal equilibrium state between the indoor 21 and the outdoor 22. The fact that the temperature Ti hardly changes means that the fluctuation range of the temperature Ti is, for example, ± 1 ° C. or less. In the air conditioner 41 of recent years, there is also a product that controls the temperature Ti of the indoor 21 within a fluctuation range of 1 ° C. or less with respect to the set temperature.

As described above, since the adiabatic performance estimation device 10 acquires temperature information and heat amount information for each unit time, if it is determined to determine whether or not the thermal equilibrium state, temperature information in a period about several times unit time and Thermal energy information is required. That is, when the predetermination unit 15 uses the temperature information and the heat amount information stored in the storage unit 14 and the variation range of the temperature information and the heat amount information satisfies the determination condition in a period about several times unit time. Then, the period is determined as a period of thermal equilibrium. The calculation unit 13 calculates the adiabatic performance using the temperature information and the heat amount information determined by the pre-determination unit 15 to be the period of the thermal equilibrium state.

Here, the judgment conditions used by the pre-judgment unit 15 to judge the fluctuation range are, for example, the fluctuation range of the temperature Ti of the indoor 21 and the fluctuation range of the temperature To of the outdoor 22 are respectively ± 1 ° C. or less and the air conditioner The fluctuation range of the power consumption of 41 is set to ± 5% or less. In addition, these numerical values are an example, and the fluctuation range of the temperature Ti of the indoor 21, the fluctuation range of the temperature To of the outdoor 22, and the fluctuation range of the power consumption of the air conditioner 41 are not particularly limited. These fluctuation ranges are appropriately changed according to the performance of the air conditioner 41 and the like.

By the way, in order to maintain the temperature Ti of the indoors 21 at the set temperature, the air conditioner 41 employs a configuration that operates intermittently, a configuration that changes the air flow rate, and the like. Therefore, in the period from time t2 to time t3 described above, the power consumption of the air conditioner 41 per unit time fluctuates. Therefore, whether or not the amount of power consumption as the heat quantity information is within the fluctuation range is not essential in order to determine the thermal equilibrium state. Furthermore, since the thermal equilibrium state is equivalent to the state in which the temperature Ti of the indoor 21 is maintained substantially constant during a period in which the temperature To of the outdoor 22 is substantially constant, the predetermination unit 15 determines the temperature of the indoor 21 The thermal equilibrium may be determined only by the variation of Ti.

In addition, the calculation unit 13 uses an integrated value of the power consumption during a period in which the thermal equilibrium state is determined as the power consumption used when calculating the heat insulation performance. For example, if temperature information for 30 minutes is used to determine whether the thermal equilibrium state or not, the calculation unit 13 uses the integrated value of the power consumption for the 30 minutes when calculating the adiabatic performance. .

In addition, when the air conditioner 41 is configured to operate intermittently in a period in which the temperature Ti of the indoor 21 is maintained at the set temperature, the cycle P1 of operation and stop becomes substantially constant, as shown in FIG. The period P1 reflects the heat insulation performance of the building 20. Therefore, if the temperature To of the outdoor 22 is substantially constant, the pre-determination unit 15 determines whether or not the thermal equilibrium state is based on the temperature Ti of the indoor 21, and the calculation unit 13 operates the air conditioner 41. The adiabatic performance may be calculated based on the period P1 of and the stop. It is possible to obtain | require the period P1 of the driving | operation of the air conditioner 41, and a stop from the time change of the power consumption which the measuring device 33 measured.

The purpose of the pre-determination unit 15 to determine whether the indoors 21 and the outdoor 22 are in a thermal equilibrium state is whether temperature information and heat quantity information used by the calculation unit 13 can be used for calculation of adiabatic performance To evaluate. Therefore, the pre-determination unit 15 may determine whether the information amount of the temperature information and the heat amount information is satisfied as well as the evaluation of the thermal equilibrium state.

Specifically, in a period in which the pre-determination unit 15 determines whether or not the thermal equilibrium state is determined, the temperature information acquired by the first acquisition unit 11 for each unit time, and the unit acquired by the second acquisition unit 12 If the heat quantity information acquired for each time is missing, it may be determined that the amount of information is insufficient. At this time, if it is determined that there is a drop in temperature information and heat quantity information that should be acquired for each unit time in a period in which the thermal equilibrium state is determined, calculation unit 13 performs heat insulation performance on temperature information and heat quantity information in this period. Discard without using for calculation of.

By the way, although it is possible to obtain the amount of heat generated by the air conditioner 41 based on the amount of power consumption, if the indoor 21 has a heat source other than the air conditioner 41, the amount of heat generated in the indoor 21 should be accurately estimated. May not be able to

In particular, if the amount of heat generated by a heat source other than the air conditioner 41 can not be measured, this amount of heat can not be incorporated into the calculation of the adiabatic performance. Therefore, the calculation unit 13 can not accurately obtain the heat insulation performance of the building 20. In other words, if there is the influence of the disturbance that causes the heat quantity generated in the room 21 to fluctuate, the reliability of the heat insulation performance of the building 20 obtained in the calculation unit 13 may be impaired.

The heat insulation performance estimation device 10 of the present embodiment is a technique for evaluating the reliability of the obtained heat insulation performance in order to enhance the reliability of the heat insulation performance of the building 20 calculated by the calculation unit 13 and disturbance for the calculation of the heat insulation performance. And technology to reduce the impact of In other words, the heat insulation performance estimation device 10 adopts the process of confirming the reliability of the heat insulation performance calculated by the calculation unit 13 and the process of preventing disturbance from being included in the information used for the calculation by the calculation unit 13. There is. If these processes are not adopted, the error of the adiabatic performance sought will increase, but if it is adopted either, the error of the adiabatic performance will be reduced.

Further, in order to confirm the reliability of the heat insulation performance calculated by the calculation unit 13, the heat insulation performance estimation device 10 includes a result evaluation unit 16. The result evaluation unit 16 is based on the assumption that the calculation unit 13 repeatedly calculates heat insulation performance. If the period from the operation of the air conditioner 41 to the stop is relatively long, the calculation unit 13 can calculate the heat insulation performance a plurality of times in the period, and the calculation unit 13 can also calculate the air conditioner 41. It is possible to calculate the adiabatic performance for each run of The result evaluation unit 16 stores the calculated adiabatic performance value each time the calculation unit 13 calculates the adiabatic performance of the building 20, and statistically processes the calculation results for a plurality of times to obtain the accuracy of the calculation result. Improve and evaluate the reliability of the calculation results.

For example, the result evaluation unit 16 obtains the frequency distribution regarding the calculated value of the adiabatic performance for each of the calculations of the calculation unit 13, and adopts the calculated value having the maximum frequency. If this process is performed, more reliable results will be obtained as the number of calculations increases.

Further, the result evaluation unit 16 may obtain the average value and the variance each time a fixed number of calculated values are obtained. For example, when the variance is within a predetermined range, the result evaluation unit 16 adopts an average value as the value of the heat insulation performance, and discards the calculated value when the variance is beyond the predetermined range.

Alternatively, every time a fixed number of calculated values are obtained, the result evaluation unit 16 may obtain a frequency distribution for the calculated values of the adiabatic performance, and adopt the calculated value having the maximum frequency as the value of the adiabatic performance. In this case, the result evaluation unit 16 can evaluate the secular change of the heat insulation performance of the building 20 by evaluating the time change of the adopted value.

As described above, by statistically processing the values calculated by the calculation unit 13 in the result evaluation unit 16, it is possible to improve the reliability of the value of the heat insulation performance calculated by the calculation unit 13. The calculated value adopted in the result evaluation unit 16 is presented to the presentation device 43 through the presentation unit 17.

On the other hand, in order to ensure that the information used by the calculation unit 13 for calculation does not include disturbance, the heat insulation performance estimation device 10 may affect the heat quantity of the indoor 21 besides the air conditioner 41 in the indoor 21. Extract the conditions. For example, the state of solar radiation incident on the indoor 21, the number of persons staying in the indoor 21, the state of operation of the device 44 disposed in the indoor 21, and the like are extracted. The device 44 includes a television receiver and a cooking device, as well as a lighting device, a ventilating device, a device serving as a heat source or a device for transferring heat between the indoor 21 and the outdoor 22. . Therefore, while the device 44 of this type is in operation, the heat quantity of the indoor 21 changes.

Although the effect of the disturbance can be incorporated into the calculation of the adiabatic performance, incorporating the effect of the disturbance into the calculation increases the number of elements used in the calculation and complicates the calculation. It also causes an error in the calculation result. Therefore, it is desirable that the calculation of the adiabatic performance does not include the influence of disturbance. In other words, it is desirable that the calculation unit 13 not use the temperature information and the heat amount information obtained during the period in which the disturbance occurs in the calculation of the adiabatic performance.

For the device 44, the calculation unit 13 may take into consideration the disturbance caused by the device 44 operating in a part of the time zone of the day. Further, even if the calculation unit 13 is, for example, the device 44 serving as a heat source, the device 44 that is always in operation, such as a refrigerator, may be incorporated into the calculation as a constant amount of heat.

Therefore, the heat insulation performance estimation apparatus 10 acquires information from the solar radiation sensor 34 that measures solar radiation and the human sensor 35 that monitors the presence of a person in the indoor space 21 and acquires information related to the operation of the device 44. The third acquisition unit 18 is provided. In short, the third acquisition unit 18 acquires information on a factor that disturbs the heat amount of the indoor space 21. Specifically, the third acquisition unit 18 acquires information on the amount of solar radiation measured by the solar radiation sensor 34 and information on the presence of a person in the indoor space 21 acquired by the person sensor 35. In addition, the third acquisition unit 18 acquires information as to whether the device 44 disposed in the room 21 is in operation or not. In other words, as the determination condition of the pre-determination unit 15, a condition for determining whether or not disturbance is occurring is determined, and the determination condition is determined with respect to at least one of the amount of solar radiation, the presence of a person, and the operation of the device 44. Is desirable.

Information on the device 44 can be obtained by monitoring the amount of power consumption obtained from the measuring device 33. Moreover, since it is possible to use the power consumption of the apparatus 44 arrange | positioned at the building 20 in order to detect the presence of the person in the indoor 21, the human sensor 35 is omissible. Furthermore, if the temperature of the indoor 21 is affected by solar radiation during the daytime, and if the time of sunrise and sunset is known, it is possible to judge the solar radiation based on the time zone. Therefore, the solar radiation sensor 34 can also be omitted.

The information acquired by the third acquisition unit 18 is stored in the storage unit 14. When it can be confirmed in the light of the determination condition that no disturbance is included from the information acquired by the third acquisition unit 18, the pre-determination unit 15 calculates temperature information and heat amount information of the corresponding period. Hand over. Therefore, the calculation unit 13 can calculate the adiabatic performance using the temperature information and the heat amount information which are obtained during a period in which the indoor 21 and the outdoor 22 are in a thermal equilibrium state and do not include a disturbance.

By the way, as an index which evaluates the heat insulation performance of the building 20, a heat loss coefficient, a heat transmission coefficient, etc. are known. Since the heat loss coefficient is a value obtained by dividing the total amount of heat loss by the total floor area, it is necessary to obtain the total floor area of the indoor room 21. As the total floor area, it is possible to use a value represented in a design drawing of the building 20 or an actual measurement value obtained by measuring the dimensions of the indoor space 21. Moreover, when furniture etc. are arrange | positioned indoors 21 and measurement is difficult, or it is only evaluating the secular change of the heat insulation performance in the building 20, and it is not necessary to know numerical value itself, The value of the standard based on the performance of the air conditioner 41 may be used.

The value of the standard based on the performance of the air conditioner 41 is associated with the output of the air conditioner 41, and is set according to the material (for example, reinforced concrete, wooden) that constitutes the building 20 or the like. That is, since the numerical value of the standard of the total floor area related to the space where the air conditioner 41 is installed is shown as the standard of the capacity of the air conditioner 41, this value is used as the general value of the total floor area.

In the case of using the actual value of the total floor area, the heat insulation performance is determined on the same basis as the other buildings 20. Therefore, it is possible to quantify the heat insulation performance calculated | required using the total floor area actual value by a heat loss coefficient etc., and to compare with another building 20 objectively. On the other hand, the heat insulation performance calculated | required using the rough value of the total floor area can be used in the same building 20 in order to evaluate the secular change of heat insulation performance etc.

As described above, although it is possible to use two types of values for the total floor area, there may be a difference in the heat insulation performance obtained by the calculation unit 13 depending on which value is used. Therefore, it is necessary to distinguish which numerical value of the heat insulation performance obtained as the calculation result of the calculation unit 13 is the value obtained using which total floor area. Then, the heat insulation performance estimation apparatus 10 of this embodiment is provided with the selection part 19 which selects which of two types of total floor area is used.

Selection unit 19 adopts a configuration for selecting one of two types of floor areas according to the user's input operation. In addition, a predetermined selection condition is set in the selection unit 19, and it is possible to select one of the two types of total floor area that satisfies the selection condition. The selection condition is appropriately set such as a condition that the user uses the total floor area selected by the input operation or a condition that the larger one of the two types of total floor area is used.

The adiabatic performance estimation apparatus 10 is configured mainly by hardware elements of a device including a processor that operates according to a program and a device that exchanges signals with an external device. The device provided with the processor may be a micro processing unit (MPU) provided separately with a memory in addition to a microcomputer (Micro controller) provided integrally with the processor and the memory. Further, the program is provided in a state of being written in a ROM (Read Only Memory), and can be provided using a computer readable recording medium. The program can also be provided through a telecommunication line such as the Internet.

The heat insulation performance estimation device 10 can be incorporated into a controller of a home energy management system (HEMS) that performs monitoring and control of the device 44 used in the building 20 by communication. In addition, the first acquisition unit 11, the second acquisition unit 12, the presentation unit 17, the third acquisition unit 18, the presentation device 43, and the like are realized by a terminal device, and the remaining functions of the heat insulation performance estimation device 10 are , And may be realized by a server that communicates with a terminal device through a telecommunication line. The terminal device is selected from a smartphone, a tablet terminal, a personal computer, and the like. Also, the telecommunication line is selected from the Internet, a mobile communication network or the like. The server is not limited to the configuration realized by one computer, and may be a configuration realized by a plurality of computers, and may be a cloud computing system.

When the configuration described above is adopted, it becomes possible to realize the heat insulation performance estimation device 10 by the terminal device and the server by executing an application program (so-called “application”) in the terminal device. In addition, since the server is made to perform a process with a large load that the calculation unit 13, the predetermination unit 15, the result evaluation unit 16 and the like execute, a lot of hardware resources are not required of the terminal device. This facilitates the realization of the terminal device. The first acquisition unit 11, the second acquisition unit 12, and the third acquisition unit 18 are realized by the controller of the HEMS, and the terminal device relays communication between the controller and the server. And the role as the presentation device 43 may be given.

The heat insulation performance estimation device 10 described above can be configured to perform processing for automatically calculating the heat insulation performance of the building 20 each time the air conditioner 41 is operated. Moreover, the heat insulation performance estimation apparatus 10 can also be configured to indicate the timing of performing the calculation by a switch or the like. However, since the result evaluation unit 16 evaluates the calculated value obtained by the calculation unit 13 by statistical processing, when the result evaluation unit 16 is provided, a configuration for automatically calculating the heat insulation performance is adopted. Is desirable.

(Summary)
Hereinafter, the heat insulation performance estimation device 10 described in the present embodiment will be briefly described with reference to a flowchart. FIG. 5 is a flowchart of the operation of the heat insulation performance estimation apparatus 10.

The heat insulation performance estimation device 10 includes a first acquisition unit 11, a second acquisition unit 12, a front determination unit 15, and a calculation unit 13. The first acquisition unit 11 acquires temperature information on the temperatures of the indoor 21 and the outdoor 22 in the building 20 (S11). The second acquisition unit 12 acquires heat amount information on the amount of energy consumed by the cooling device or the heating device that changes the temperature of the indoor 21 (S12). The pre-determination unit 15 determines whether the temperature information and the heat quantity information satisfy a predetermined determination condition (S13). The calculation unit 13 calculates the heat insulation performance of the building 20 using the temperature information and the heat amount information that are determined to satisfy the predetermined determination condition (S14).

According to this configuration, since the pre-determination unit 15 determines whether the determination condition is satisfied with respect to the temperature information and the heat amount information used by the calculation unit 13 for calculation, by setting the appropriate determination condition It becomes possible to sort out temperature information and heat quantity information which are not suitable for calculation. As a result, it is possible to improve the reliability of the calculation result of the calculation unit 13.

In addition, it is desirable that the heat insulation performance estimation device 10 includes the result evaluation unit 16. That is, the calculation unit 13 calculates the heat insulation performance of the building 20 multiple times, and the result evaluation unit 16 evaluates the calculation results of the heat insulation performance of the multiple buildings 20 calculated by the calculation unit 13 by statistical processing.

According to this configuration, since the calculation results of the heat insulation performance of the building 20 calculated by the calculation unit 13 are statistically processed a plurality of calculation results, it is possible to extract highly reliable values from the calculation results of the plurality of times. The accuracy of the calculation result can be improved. In addition, it is possible to calculate the degree of reliability or error of the extracted value by statistical processing of the calculation result.

It is desirable that the predetermined determination condition is set so as to determine that the temperature information and the heat amount information are not missing in the acquired time zone. In other words, the pre-determination unit 15 may determine, as the predetermined determination condition, whether the temperature information and the heat amount information satisfy the condition that no dropout occurs in the acquired time zone.

In addition, the predetermined determination condition relates to the variation range of the temperature information and the heat amount information so as to determine that the temperature information and the heat amount information are acquired during the period in which the indoor 21 and the outdoor 22 are in a thermal equilibrium state. It is desirable that it is set. In other words, the pre-determination unit 15 determines whether the temperature information and the heat quantity information satisfy the condition of being acquired during the thermal equilibrium state between the indoor 21 and the outdoor 22 as the predetermined determination condition. You may judge.

Alternatively, the predetermined determination condition is a condition for determining whether or not the disturbance with respect to the heat amount of the indoor 21 is generated, and the pre-determination unit 15 determines the temperature information and the heat amount information obtained in the period in which the disturbance is generated. It is desirable to discard In other words, the pre-determination unit 15 determines, as the predetermined determination condition, whether or not the condition that the disturbance to the heat quantity of the indoor 21 is not satisfied is satisfied, and the temperature information obtained in the period in which the disturbance is generated The heat quantity information may be discarded.

The reliability of the calculation result can be improved by selecting the temperature information and the heat amount information suitable for the calculation by the pre-determination unit 15 using such a determination condition. In particular, when the pre-determination unit 15 determines that the temperature information and the heat amount information used for the calculation are missing, if the information is missing due to a communication error or the like, the information necessary for the calculation is not used for the calculation. You can secure the quantity. In addition, the heat insulation performance can be easily calculated by determining the period of thermal equilibrium based on the range of fluctuation of temperature information and heat quantity information and using the temperature information and heat quantity information of the period of thermal equilibrium state for calculation. There is a possibility that the variation of the calculation result can be suppressed. Alternatively, by discarding the temperature information and the heat quantity information of the period in which the disturbance occurs, it is possible to suppress the dispersion of the calculation result due to the disturbance.

Here, when the disturbance is solar radiation, it is preferable that the predetermined determination condition is set to determine that the temperature information and the heat amount information are acquired in a nighttime zone where solar radiation does not occur. In other words, the pre-determination unit 15 may determine, as the predetermined determination condition, whether the temperature information and the heat amount information satisfy the condition of being acquired in the night time zone in which no solar radiation occurs.

Further, when the disturbance is the presence of a person in the indoor room 21, the predetermined determination condition is set so as to determine that the temperature information and the heat quantity information are acquired in the time zone in which the person is absent in the indoor room 21 Is desirable. In other words, the pre-determination unit 15 may determine, as the predetermined determination condition, whether or not the temperature information and the heat amount information satisfy the condition that the person is not present in the indoor 21 and acquired during the time zone .

Since solar radiation and people greatly affect the amount of heat in the room 21, it is possible to accurately calculate the adiabatic performance of the building 20 by using the temperature information and the amount of heat information during periods in which no such disturbance exists. .

When the disturbance is the operation of the device 44 excluding the cooling device and the heating device indoors, the predetermined determination condition determines that the temperature information and the heat amount information are acquired in the time zone in which the device 44 is stopped. It is desirable that it is set. In other words, the pre-determination unit 15 may determine, as the predetermined determination condition, whether the temperature information and the heat amount information satisfy the condition that the device 44 is acquired in the stopped time zone. Here, the device 44 is at least one of a device serving as a heat source during operation and a ventilation device. The devices that generate heat are, for example, lighting devices, cooking devices, and the like.

When the lighting equipment and cooking equipment are in operation, the heat generated indoors increases, and when the ventilation equipment is in operation, the heat quantity in the room is changed by being ventilated between the indoor and the outdoor. Therefore, since the operation of these devices 44 affects the amount of heat in the room 21, the heat insulation performance of the building 20 can be accurately determined by using the temperature information and the heat amount information of the period when the device 44 of this type is not in operation. It becomes possible to calculate.

By the way, when the heat insulation performance is expressed by the heat loss coefficient obtained by dividing the total heat loss amount by the total floor area, the predetermined judgment condition is that the temperature information and the heat amount information are in the time zone in which the ventilator is operating. It is set to determine that it has been acquired. In other words, the pre-determination unit 15 may determine, as the predetermined determination condition, whether the temperature information and the heat amount information satisfy the condition that the temperature information and the heat amount information are acquired during the operating time of the ventilator.

That is, when using a heat loss coefficient to evaluate the insulation performance, it is necessary to consider the heat inflow and outflow associated with the ventilation of the room by the ventilator. Therefore, the determination condition in this case needs to be set so as to determine that the ventilator is operating.

Further, when the heat insulation performance is represented by a heat loss coefficient obtained by dividing the total amount of heat loss by the total floor area, it is desirable that the heat insulation performance estimation device 10 includes the selection unit 19. The selection unit 19 selects, as the total floor area, a value that satisfies a predetermined selection condition among a value determined as an index of the performance of the cooling device or the heating device and a value based on the actual measurement value of the building 20.

According to this configuration, when the heat loss coefficient is used to evaluate the heat insulation performance, it is possible to use one of an index of the performance of the cooling device or the heating device and an actual measurement value as the total floor area. Therefore, it is necessary to use numerical values to evaluate the thermal insulation performance, as in the case of evaluating the aging of the thermal insulation performance, but if the numerical values themselves are not a problem, the index of the performance of the cooling equipment or heating equipment It can be used. When an objective numerical value of the thermal insulation performance based on the same standard is required, as in the case of comparing the thermal insulation performance with another house, the actual measurement value of the building 20 can be used.

The embodiment described above is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and even if it is a range other than this embodiment, various modifications may be made according to design etc. as long as the technical idea of the present invention is not deviated. Changes are possible.

For example, the present invention may be realized as a heat insulation performance estimation method executed by a computer such as a heat insulation performance estimation apparatus. Furthermore, the present invention may be realized as a program for causing a computer to function as a thermal insulation performance estimation device. In other words, the present invention may be realized as a program for causing a computer to execute the heat insulation performance estimation method.

DESCRIPTION OF SYMBOLS 10 Thermal insulation performance estimation apparatus 11 1st acquisition part 12 2nd acquisition part 13 Calculation part 15 Predetermination part 16 Result evaluation part 19 Selection part 20 Building 21 Indoor 22 Outdoor

Claims

A first acquisition unit for acquiring temperature information on indoor and outdoor temperatures in the building;
A second acquisition unit that acquires heat quantity information on an amount of energy consumed by a cooling device or a heating device that changes the temperature of the room;
A predetermination unit that determines whether the temperature information and the heat amount information satisfy a predetermined determination condition;
A heat insulation performance estimation device, comprising: a calculation unit that calculates the heat insulation performance of the building using the temperature information and the heat quantity information that are determined to satisfy the predetermined determination condition.
The calculation unit calculates the heat insulation performance of the building a plurality of times,
The heat insulation performance estimation device according to claim 1, further comprising: a result evaluation unit that evaluates the calculation result of the heat insulation performance of the building for a plurality of times calculated by the calculation unit by statistical processing.
The said pre-determination part determines whether it satisfy | fills the conditions that the said temperature information and the said thermal energy information are not missing in the acquired time zone as said predetermined | prescribed determination conditions. Thermal insulation performance estimation device.
The pre-determination unit determines, as the predetermined determination condition, whether the condition that the temperature information and the heat amount information are acquired during a period of thermal equilibrium between the indoor and the outdoor is satisfied. The heat insulation performance estimation apparatus of Claim 1 or 2 to determine.
The pre-determination unit
As the predetermined determination condition, it is determined whether or not a condition that disturbance to the heat quantity in the room is not generated is satisfied,
The heat insulation performance estimation device according to claim 1, wherein the temperature information and the heat amount information obtained during a period in which the disturbance occurs are discarded.
The disturbance is solar radiation,
The pre-determination unit is configured to determine, as the predetermined determination condition, whether or not the temperature information and the heat amount information satisfy the condition that the temperature information and the heat amount information are acquired in a night time zone in which solar radiation does not occur. Thermal insulation performance estimation device.
The disturbance is the presence of a person indoors,
The pre-determination unit determines, as the predetermined determination condition, whether or not the temperature information and the heat amount information satisfy the condition that the temperature information and the heat amount information are acquired in a time zone in which a person is absent indoors. Thermal insulation performance estimation device as described.
The disturbance is the operation of the indoor device excluding the cooling device and the heating device indoors,
The device is at least one of a device serving as a heat source during operation and a ventilator.
The pre-determination unit determines, as the predetermined determination condition, whether or not the condition that the temperature information and the heat amount information are acquired in a stopped time zone of the device is satisfied. Thermal insulation performance estimation device.
The heat insulation performance is represented by a heat loss coefficient obtained by dividing the total amount of heat loss by the total floor area,
The pre-determination unit determines, as the predetermined determination condition, whether or not the condition that the temperature information and the heat amount information are acquired in a time zone in which the ventilator is in operation is satisfied. Thermal insulation performance estimation device as described.
The heat insulation performance is represented by a heat loss coefficient obtained by dividing the total amount of heat loss by the total floor area,
A selector configured to select, as the total floor area, a value satisfying a predetermined selection condition among a value determined as an index of the performance of the cooling device or the heating device and a value based on an actual measurement value of the building The heat insulation performance estimation device according to claim 1 or 2, further comprising:
A program for causing a computer to function as the heat insulation performance estimation device according to any one of claims 1 to 10.