KR101231311B1 - Apparatus and method for controlling air condition - Google Patents

Abstract

The present invention corrects an error that occurs when the air conditioning control is performed with the manipulated variable obtained by the distribution system thermal flow analysis method.
After starting the air conditioning estimation control, the air conditioning feedback control determination unit 15C obtains the measurement temperature T _M measured at the target place j in the air conditioning space 30 and the heat flow analysis processing unit 15B. the temperature error (ΔT _SM) with the estimated temperature (T _S) of the target location (j), by comparing the temperature error (ΔT _SM) the tolerance (T _L) which is set in advance with respect to, a temperature error (ΔT _SM ) When switching to the air conditioning feedback control for the target place j for correcting is determined, and it is determined that the air conditioning feedback control is necessary, the air conditioning indicating unit 15D estimates the estimated temperature ( With T _S ) as the set temperature T _SP , the air conditioning system 20 is instructed to start execution of the air conditioning feedback control operation.

Description

Air conditioning control device and method {APPARATUS AND METHOD FOR CONTROLLING AIR CONDITION}

The present invention relates to an air conditioning control technique, and more particularly, to an air conditioning control technique for controlling an air conditioning environment at a target place in a space by using a distribution system heat flow analysis method.

When maintaining the interior of the space in the desired air conditioning environment, the air conditioning equipment is installed in the air conditioning space to be air-conditioned, the temperature sensor is placed at a position representative of each area of the air conditioning space, and the conditioning supplied from the air conditioning equipment according to the output of the temperature sensor. Determine the amount of operation such as air volume, wind direction, and temperature.

On the other hand, in a large space such as an office, work efficiency is usually given priority to the arrangement of a person, a lighting, an electric device, etc., which serve as a heat source, and a placement of a desk, a chair, a partition, etc., which are obstacles of air flow. The layout is not designed to prioritize air conditioning control. For this reason, the positional relationship of the blower outlet of a air conditioning installation and a temperature sensor will become so-called temperature interference (For example, refer nonpatent literature 1 etc.).

Therefore, in the form which constitutes a plurality of general single-loop feedback control systems, it is difficult to stabilize an operation amount by such temperature interference, and favorable control becomes difficult. For example, when the change in temperature is large when the transition to the desired air conditioning environment occurs, fluctuations occur in the control state, and the operation amount is a messy operation such that each feedback control system individually searches for the entire system stable state. This will not be stable.

Japanese Patent No. 4016066

Hirozu Kazuo, 「Basic and Application of Digital Instrumentation Control System」, Kogyo Jutsu Co., pp.152-156, 1987.10 Kato Shinsuke, Hikaru Kobayashi, Shuka Murakami, "Development of evaluation criteria for evaluation of ventilation efficiency and thermal environment formation efficiency in an incomplete mixing room development of thermal environment formation contribution rate index of local area based on Part II-CFD", Tokyo University production technology Research Institute: Air Conditioning and Hygiene Engineering No.69, pp.39-47, 1998.4

As a method of obtaining a stable operation amount with respect to the air-conditioning space where such complicated temperature interference occurs, a method using a distribution system thermal flow analysis method is considered. Using this distribution system thermal fluid analysis method, based on the set design target, the perturbation equation for the nonlinear problem with respect to the design target can be included, so that the sensitivity defined as the change ratio of the design target to the change of the design parameter can be obtained. By analyzing, the desired tropical flow field or material diffusion field can be designed (for example, refer patent document 1 etc.).

Therefore, using the distribution system heat flow analysis method, the temperature of the air conditioning space and the distribution of air flow are estimated from the air conditioning situation of the input air conditioning space, and based on this distribution and the target temperature at the target place in the air conditioning space, Sensitivity indicating the degree of change of the wind speed, the wind direction, and the temperature in each small space provided in the air conditioning space necessary to satisfy the target temperature is calculated, and based on this sensitivity data, the blowing speed and the blowing speed of the new harmonic air at each blowing port. It is possible to calculate an operation amount including a temperature and a suction speed for sucking indoor air from each suction port.

As a result, since the desired environmental state is interpreted as an overall systemic stable state, a stable operation amount can be obtained, and the temperature can be brought close to the desired thermal environment state efficiently. In particular, even when it is difficult to determine the set value, such as at the time of air conditioning startup, by setting the operation amount according to the distribution system heat flow analysis method, the target thermal environment state can be reached in a short time.

However, such a distribution system thermal flow analysis method is a simulation to the last, and it is necessary to model the air conditioning space and disturbance etc. which become a control object. Therefore, even if the air conditioning equipment is controlled in accordance with the obtained operation amount, there is a problem that a temperature error may occur between the estimated temperature distribution according to the simulation and the temperature distribution in the actual air conditioning space, for example.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an air conditioning control technique capable of correcting an error occurring when air conditioning is controlled by an operation amount obtained by a distribution system thermal flow analysis method.

In order to achieve this object, the air conditioning control device according to the present invention estimates the temperature and airflow distribution of the air conditioning space from the air conditioning situation of the input air conditioning space using a distribution system heat flow analysis method. A heat flow analysis processing unit for estimating an operation amount related to air conditioning control based on a target temperature at a target location in the air conditioning space, and based on the operation amount obtained in the heat flow analysis processing unit, An air conditioning control device that performs air conditioning estimation control for controlling the air conditioning environment of the entire air conditioning space by adjusting the blowing speed and the blowing temperature of the conditioning air, and after the air conditioning estimation control is started, An air conditioning feedback control determining unit that determines to switch to air conditioning feedback control based on an end condition; And when the switching to the air conditioning feedback control is determined by the air conditioning feedback control determining unit, an air conditioning instruction unit for instructing the air conditioning system to start execution of the air conditioning feedback control operation with the estimated temperature as the set temperature.

At this time, the air conditioning feedback control determining unit confirms the stability of the temperature field at the target place by comparing the change in the measured temperature of the specific target place with the constant determination time and the normal determination temperature width. When the stability of the temperature field at the place is confirmed, switching to the air conditioning feedback control for the target place may be determined.

In addition, after starting air conditioning estimation control, in the air conditioning feedback control determination part, the temperature error of the measurement temperature and the reference temperature containing the estimated temperature in the specific target place obtained by the heat-flow analysis processing part is compared with respect to the temperature error. By comparing with the preset allowable range, it is also possible to determine the switching to the air conditioning feedback control for the target place for correcting the temperature error.

In addition, the air conditioning feedback control determination unit compares the measurement temperature with a reference temperature including the measurement temperature measured at a specific target location by returning to the past for a predetermined determination time from the measurement temperature, and then changing the measured temperature from the measured target location. The measurement temperature gradient at the target site is calculated, the measurement temperature at the target site is equal to or higher than the estimated temperature of the target site, and the measurement temperature slope is equal to or more than the reference slope of the measurement temperature corresponding to a preset temperature error; When the measured temperature of the place is smaller than the estimated temperature of the target place, and the measured temperature slope is smaller than the reference slope of the measured temperature corresponding to the preset temperature error, it is determined to switch to the air conditioning feedback control for the target place. You may.

In addition, the air conditioning feedback control determining unit may determine the switching to the air conditioning feedback control when a certain waiting time elapses after starting the air conditioning estimation control.

In addition, the air conditioning control method according to the present invention uses a distribution system heat flow analysis method to estimate the temperature and airflow distribution of the air conditioning space from the air conditioning situation of the input air conditioning space, and the distribution and the purpose within the air conditioning space. A heat flow analysis processing section for estimating the amount of operation relating to the air conditioning control based on the target temperature at the place, and based on the amount of operation obtained in the heat flow analysis processing section, the blowing speed of the roughened air at each jet port provided in the air conditioning space. And an air conditioning control method used in an air conditioning control device that performs air conditioning estimation control for controlling the air conditioning environment of the entire air conditioning space by adjusting the air temperature and the blowing temperature, after the air conditioning feedback control determination unit starts air conditioning estimation control in advance. Decision to switch to the air conditioning feedback control based on the end condition of the prescribed air conditioning estimation control effect When the air conditioning feedback control determination step and the air conditioning instruction unit are determined to switch to the air conditioning feedback control in the air conditioning feedback control determination step, the air conditioning system instructs the air conditioning system to start execution of the air conditioning feedback control operation by setting the estimated temperature as the set temperature. The air conditioning instruction step.

At this time, in the air-conditioning feedback control determination step, the presence or absence of the stability of the temperature field at the target site is confirmed by comparing the change of the measured temperature of the specific target site with the normal determination temperature width at a constant determination time. When the stability is confirmed, switching to the air conditioning feedback control for the target place may be determined.

Further, in the air conditioning feedback control determination step, after starting air conditioning estimation control, the temperature error between the measured temperature and the reference temperature including the estimated temperature at the specific target place obtained by the heat flow analysis processing unit is determined with respect to the temperature error. By comparing with the preset allowable range, it is also possible to determine the switching to the air conditioning feedback control for the target place for correcting the temperature error.

In the air-conditioning feedback control determination step, the measurement temperature is returned to the past by a predetermined determination time from this measurement temperature, and the reference temperature including the measurement temperature measured at the specific target location is compared to obtain the measured temperature change from the measured target location. The measurement temperature gradient at the target site is calculated, the measurement temperature at the target site is equal to or higher than the estimated temperature of the target site, and the measurement temperature slope is equal to or more than the reference slope of the measurement temperature corresponding to a preset temperature error; When the measured temperature of the place is smaller than the estimated temperature of the target place, and the measured temperature slope is smaller than the reference slope of the measured temperature corresponding to the preset temperature error, it is determined to switch to the air conditioning feedback control for the target place. You may.

Further, in the air conditioning feedback control determination step, switching to the air conditioning feedback control can be determined at a time point when a predetermined waiting time has elapsed after starting the air conditioning estimation control.

According to this invention, the error which arises when air conditioning control by the operation amount obtained by the distribution system heat-flow analysis method can be adjusted by the individual air conditioning feedback control operation with respect to a target place by an air conditioning system. Therefore, it is possible to provide a comfortable air-conditioning environment set by the inhabitants to the inhabitants in the air conditioning space.

1 is a block diagram showing a configuration of an air conditioning control device according to a first embodiment.
2 is a flowchart showing an air conditioning control operation in the air conditioning control device.
3 is a structural example of boundary condition data.
4 is a structural example of measured temperature data.
5 is a structural example of distribution data.
6 is a structural example of the target data.
7 is a flowchart illustrating air conditioning estimation control processing according to the first embodiment.
8 is a flowchart showing the air conditioning feedback control process according to the first embodiment.
9 is an explanatory diagram showing an air conditioning feedback control operation according to the first embodiment.
10 is a structural example of an air conditioning space to be subjected to air conditioning.
11 is an explanatory diagram showing a simulation result.
12 is a flowchart illustrating air conditioning feedback control processing according to the second embodiment.
13 is an explanatory diagram showing a relationship between a temperature error and a reference slope.
It is explanatory drawing which shows the air conditioning feedback control operation which concerns on 2nd Embodiment.
15 is another explanatory diagram showing the air conditioning feedback control operation according to the second embodiment.
16 is a flowchart illustrating air conditioning feedback control processing according to the third embodiment.
It is explanatory drawing which shows the air conditioning feedback control operation which concerns on 3rd Embodiment.

Next, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]

First, with reference to FIG. 1, the air conditioning control apparatus which concerns on 1st Embodiment of this invention is demonstrated. 1 is a block diagram showing a configuration of an air conditioning control device according to a first embodiment.

The air conditioning control device 10 includes an information processing device such as a personal computer or a server device as a whole, and controls the air conditioning system 20 for harmonizing the air in the air conditioning space 30, thereby controlling the purpose of the air conditioning space 30. Has the function to control the air conditioning environment in the place.

In particular, the air conditioning control device 10 estimates the temperature and airflow distribution of the air conditioning space 30 from the air conditioning situation of the input air conditioning space 30 by using a distribution system heat flow analysis method. A heat flow analysis processing unit for estimating an operation amount related to air conditioning control is provided on the basis of a target temperature at a target location in the air conditioning space 30, and the air flow space 30 is provided in the air conditioning space 30 based on the operation amount obtained in the heat flow analysis processing unit. Air conditioning estimation control which controls the air-conditioning environment of the whole air-conditioning space 30 is performed by adjusting the blowing speed and the blowing temperature of the roughening air in each provided jet opening with the air conditioning system 20.

In this embodiment, after the air conditioning control device 10 starts the air conditioning estimation control, the measured temperature measured at the target location in the air conditioning space 30, the estimated temperature at the target location obtained by the heat flow analysis processing unit, When switching to the air conditioning feedback control is determined by comparing the temperature error of the temperature with the allowable range preset for the temperature error, the conversion to the air conditioning feedback control for the target place for correcting the temperature error is determined. By setting the estimated temperature as the set temperature, the air conditioning system 20 is instructed to start execution of the air conditioning feedback control operation.

[HVAC control device]

Next, with reference to FIG. 1 and FIG. 2, the structure of the air conditioning control apparatus 10 which concerns on this embodiment is demonstrated in detail. 2 is a flowchart showing an air conditioning control operation in the air conditioning control device.

The air conditioning control device 10 includes a communication interface unit (hereinafter referred to as a communication I / F unit) 11, an operation input unit 12, a screen display unit 13, a storage unit 14, as main functional units. And arithmetic processing unit 15.

The communication I / F unit 11 includes a dedicated data communication circuit and has a function of performing data communication with an external device such as an air conditioning system connected via a communication line L.

The operation input unit 12 includes an operation input device such as a keyboard or a mouse, and has a function of detecting an operation of an operator and outputting the operation to the operation processing unit 15.

The screen display unit 13 includes a screen display device such as an LCD or a PDP, and has a function of screen displaying various information such as an operation menu or input / output data in accordance with an instruction from the arithmetic processing unit 15.

The storage unit 14 includes a storage device such as a hard disk or a semiconductor memory, and has a function of storing various processing information and programs 14P used in the arithmetic processing unit 15.

The program 14P is a program that is read and executed by the arithmetic processing unit 15, and is stored in the storage unit 14 in advance through the communication I / F unit 11 from an external device or a recording medium.

The setting condition data 14A is the main processing information stored in the storage unit 14. The setting condition data 14A is a position and shape relating to the air conditioning space 30, or a position regarding a component that affects the air conditioning environment of the air conditioning space 30, such as a blower outlet of the generated air generated in the air conditioning system 20. And various data serving as setting conditions when performing a heat flow analysis process, such as space condition data indicating a shape, an arrangement position and a calorific value for each heating element arranged in the air conditioning space 30, and a heating element data indicating a shape. It is input in advance through the communication I / F unit 11 from an external device such as the air conditioning system 20 or the recording medium, and stored in the storage unit 14.

The arithmetic processing unit 15 has a microprocessor such as a CPU and a peripheral circuit thereof, and has a function of realizing various processing units by reading and executing the program 14P from the storage unit 14.

The main processing units realized by the arithmetic processing unit 15 include a data input unit 15A, a heat flow analysis processing unit 15B, an air conditioning feedback control determination unit 15C, and an air conditioning instruction unit 15D.

The data input unit 15A stores the setting condition data 14A regarding the air conditioning space 30 inputted from an external device such as the air conditioning system 20 or the recording medium via the communication I / F unit 11. The air-conditioning environment by the component which affects the air-conditioning environment of the air-conditioning space 30, such as the function to store in advance in advance, and the blowing speed and the ejection temperature of the roughened air blown off from the air outlet provided in the air-conditioning space 30, The communication condition 20 communicates the boundary condition data 14B indicating the degree of influence on the measured temperature data 14C including the measured temperature measured by the temperature sensor 22 installed in the air conditioning space 30 from the air conditioning system 20. It has a function acquired through the / F unit 11.

In addition, the data input unit 15A determines the arrival of the air conditioning control timing at predetermined time intervals or in accordance with the change of the set condition data 14A, the boundary condition data 14B, or the measurement temperature data 14C, and the air conditioning is performed. With the arrival of the control timing, it has a function of newly generating set condition data 14A, boundary condition data 14B, or measured temperature data 14C for new air conditioning control.

The setting condition data 14A may be input by an operator operation using the operation input unit 12, and the setting relating to the air conditioning space 30 based on data obtained from various systems through the communication I / F unit 11. The condition data 14A may be generated.

3 is a structural example of boundary condition data. Here, among the components included in the space condition data, for each component whose influence on the air conditioning environment of the air conditioning space 30 changes, the degree of influence represented by the wind speed, the wind direction, and the temperature is registered as the boundary condition at that time. have. For example, the ejection velocity (u, v, w) (three-dimensional component) of the roughened air ejected from the ejection opening and the air temperature T of the roughened air ejected from the ejection opening are registered, and the "intake opening" is registered. The suction speeds u, v, w (three-dimensional components) of the indoor air suctioned from the suction port are registered.

4 is a structural example of measured temperature data. Here, with respect to the target place j in the air conditioning space 30, the air measured by the position (x, y, z) (three-dimensional component) of the target place and the temperature sensor 22 provided in the target place. The temperature T of is registered. In addition, the target place j is not limited to one place, but can be set in multiple places in the controllable range (the range from which a solution can be obtained).

The heat flow analysis processing unit 15B uses the distribution system heat flow analysis method to calculate the air conditioning space from the boundary condition data 14B indicating the air conditioning situation of the input air conditioning space 30 and the set condition data 14A. A function of estimating distribution data 14D indicating a temperature of 30 and a distribution of air flows, and a target temperature at a target location in the air conditioning space 30 by a data input operation of an operator using the operation input unit 12. It has the function of acquiring the objective data 14E, and the function of estimating the manipulated-variable data 14F which shows the manipulated variable regarding air conditioning control based on this distribution data 14D and objective data 14E.

The distribution system thermal flow analysis method is a technique of dividing an object space into a mesh-like small space based on CFD (Computational Fluid Dynamics) and analyzing heat flow between adjacent small spaces. For the function of estimating the distribution data 14D in the heat flow analysis processing unit 15B, for example, a known technique such as Non-Patent Document 2 using net analysis of the distribution system heat flow analysis method may be used. For the function of estimating the manipulated variable data 14F, for example, a known technique such as Patent Document 1 using the reverse analysis of the distribution system thermal flow analysis method may be used.

5 is a structural example of distribution data. Here, for each position (x, y, z) (three-dimensional component) of the small space set by dividing the air conditioning space 30 into a mesh shape, the wind speed of the indoor air in the small space (u _CFD , v _CFD , w _CFD ) (three-dimensional component) is registered, and the air temperature T _CFD of indoor air in the small space is registered as temperature distribution data.

6 is a structural example of the target data. Here, the position (x, y, z) (three-dimensional component) and the shape (size) (dx, dy, dz) (three-dimensional component) are registered as the space conditions of the target place i, and as said boundary conditions, The target temperature T at the target place i is registered. In addition, the target place i is not limited to one place, It can set in multiple places in the controllable range (range which can get a solution).

The air conditioning feedback control determination unit 15C starts the air conditioning estimation control for controlling the air conditioning environment of the entire air conditioning space 30 based on the manipulated variable data 14F obtained by the heat flow analysis processing unit 15B, and then the measured temperature data. The air conditioning feedback with respect to the target place j is compared by comparing the measured temperature T _M measured by the target place j in the air conditioning space 30 contained in 14C with the reference temperature with respect to the target place j. It has a function to determine switching to control.

The air conditioning instruction unit 15D controls the air conditioning of the entire air conditioning space 30 based on the manipulated variable data 14F obtained by the heat flow analysis processing unit 15B in order to set the target location i in the air conditioning space 30 as the target temperature. When the function of instructing the air conditioning system 20 via the communication I / F unit 11 to control the air conditioning estimation control for controlling the environment, and the switching to the air conditioning feedback control in the air conditioning feedback control determination unit 15C, are determined, It has a function which instructs the air conditioning system via the communication I / F part 11 to start execution of the air conditioning feedback control operation by making estimated temperature T _S into set temperature T _SP .

[Air conditioning system]

Next, with reference to FIG. 1, the structure of the air conditioning system 20 which concerns on this embodiment is demonstrated.

The air conditioning system 20 is provided with an air conditioning processing unit 21, a temperature sensor 22, and an air supply adjusting unit 23 as main functional units. This air-conditioning system 20 has the same structure as the general air-conditioning facilities provided in living rooms, such as a building and a store other than these functional parts.

The air conditioning processing unit 21 includes an arithmetic processing unit having a microprocessor such as a CPU and a peripheral circuit thereof, and according to the air conditioning estimation control instruction from the air conditioning control device 10 via the communication line L, The air supply control unit 23 is controlled based on the amount of operation to adjust the air supply to the air conditioning apparatus provided in the air conditioning space 30, thereby adjusting the air in the entire air conditioning space 30, and the air conditioning control device 10. According to the air conditioning feedback control instruction from), the set temperature T _SP of the measurement target temperature T _M measured by the temperature sensor 22 of the target location j is notified in the instruction is The air supply adjustment unit 23 is controlled as much as possible, and the air supply feedback control is performed by adjusting the air supply to the air conditioner related to the target place j. As for the air conditioning feedback control, when the central air conditioning equipment is installed in the air conditioning space 30, local loop control of the VAV may be used. When the individual air conditioning equipment is installed in the air conditioning space 30, You can use loop control.

The temperature sensor 22 includes a general temperature sensor, and has a function of measuring the temperature of the target place j provided in the air conditioning space 30 and outputting it to the air conditioning processing unit 21.

The air supply adjusting unit 23 includes an air flow rate adjusting device such as a valve, and has a function of adjusting the air supply to the air conditioning apparatus provided in the air conditioning space 30 according to the control from the air conditioning processing unit 21.

[Operation of First Embodiment]

Next, with reference to FIG. 2, FIG. 7 and FIG. 8, operation | movement of the air conditioning control apparatus which concerns on this embodiment is demonstrated. 7 is a flowchart illustrating air conditioning estimation control processing according to the first embodiment. 8 is a flowchart showing the air conditioning feedback control process according to the first embodiment.

Air Conditioning Estimation Control Operation

First, the air conditioning estimation control operation of the air conditioning control device according to the present embodiment will be described with reference to FIGS. 2 and 7.

The arithmetic processing part 15 of the air conditioning control apparatus 10 starts the air conditioning control process of FIG. 7 at the time of starting or according to an operator operation. In addition, it is assumed that the setting condition data 14A is previously stored in the storage unit 14 before the execution of the air conditioning control process.

First, the data input unit 15A performs data communication with the air conditioning system 20 through the communication I / F unit 11, and ejection speeds (u, v, w) (3) at each outlet of the air conditioning space 30 (3). The boundary conditions data 14B such as the dimensional component) and the air temperature T and the suction speeds u, v, w (three-dimensional component) at each intake port, and the target location ( Measurement temperature data 14C indicating the measurement temperature T _M in j) is acquired (step 100).

Next, the heat flow analysis processing unit 15B acquires the setting condition data 14A from the storage unit 14 (step 101), and the boundary condition data generated by the setting condition data 14A and the data input unit 15A. Based on 14B, the situation of the air conditioning space 30 is net analyzed according to the distribution system thermal flow analysis method, thereby calculating distribution data 14D indicating the temperature of the air conditioning space 30 and the distribution of airflow (step) 102).

Thereafter, the heat flow analysis processing unit 15B acquires the target data 14E indicating the target temperature at the target place in the air conditioning space 30 by the data input operation of the operator using the operation input unit 12 (step 103, by comparing this objective data 14E and distribution data 14D, it is confirmed whether or not there is a deviation with respect to the target location of the air conditioning space 30 (step 104).

Here, in the case where the difference between the air temperature at the target place obtained from the distribution data 14D and the target temperature specified in the target data 14E is a temperature difference equal to or less than a preset threshold temperature difference, it is determined that there is no difference in the air conditioning environment. (Step 105: NO), the flow proceeds to step 108 described later.

On the other hand, when the difference between the air temperature at the target place obtained from the distribution data 14D and the target temperature specified by the target data 14E is a temperature difference exceeding the preset threshold temperature difference, the heat flow analysis processing unit 15B It is determined that there is a deviation of the air conditioning environment (step 105: YES), and based on the distribution data 14D and the objective data 14E, the distribution of the temperature and air flow in the air conditioning space 30 is determined in accordance with the distribution system heat flow analysis method. By inverse analysis, sensitivity data indicating the degree of change in wind speed, wind direction, and temperature in each small space necessary for satisfying the target data is calculated. Based on this sensitivity data, the blowing speed of the new harmonic air at each jet port and The manipulated variable data 14F including the blowing temperature and the suction speed for sucking the indoor air from each suction port are inverted (step 106).

Accordingly, the air conditioning instruction unit 15D performs air conditioning estimation control for controlling the air conditioning environment of the entire air conditioning space 30 based on the manipulated variable data 14F calculated by the heat flow analysis processing unit 15B. The air conditioning system 20 is instructed through step 11 (step 107).

Thereafter, the data input unit 15A determines the arrival of the air conditioning estimation control timing at regular intervals or in accordance with the newly obtained boundary condition data or the heating element data (step 108), and in accordance with the arrival of the air conditioning control timing (step 108). 108: YES), the process returns to step 100 to start new air conditioning estimation control.

[Air-conditioning feedback control operation]

Next, with reference to FIG.2 and FIG.8, the air conditioning feedback control operation of the air conditioning control apparatus which concerns on this embodiment is demonstrated.

The arithmetic processing unit 15 of the air conditioning control device 10 starts the air conditioning feedback control process of FIG. 8 after the air conditioning estimation control process of FIG. 7 described above is executed.

The air conditioning feedback control determination unit 15C first extracts the measurement temperature T _M of the target place j from the measurement temperature data 14C acquired by the data input unit 15A (step 110), and then displays the current time ( The measurement temperature change ΔT _MM (absolute value) representing the change in the measurement temperature T _M in the determination time Δt minutes from t) to the past is calculated (step 111).

Here, the measurement temperature change ΔT _MM is compared with the normal determination temperature range T _D preset in the storage unit 14 (step 112), and the measurement temperature change ΔT _MM is the normal determination temperature width ( If greater than T _D (step 112: NO), the air conditioning feedback control determination unit 15C returns to step 110 and repeatedly checks until the temperature field at the target place j is stabilized.

On the other hand, when the measurement temperature change ΔT _MM is within the normal determination temperature range T _D (step 112: YES), it is possible to confirm that the temperature field at the target place j is stable, so that the air conditioning feedback control determination unit ( 15C) extracts the estimated temperature T _S as the reference temperature of the target place j from the distribution data 14D obtained by the heat flow analysis processing unit 15B (step 113), and at the current time t, The temperature error ΔT _SM (absolute value) between the estimated temperature T _S at the place j and the actual measurement temperature T _M is calculated (step 114).

Here, the temperature error ΔT _SM is compared with the allowable range T _L preset in the storage unit 14 (step 115), and the temperature error ΔT _SM is larger than the allowable range T _L. (Step 115: YES), the air conditioning feedback control determination unit 15C determines the switching to the air conditioning feedback control for the target place j for correcting the temperature error ΔT _SM , and estimates the target place j. The air conditioning instruction unit 15D is notified of the set temperature data 14G in which the temperature T _S is set as the new set temperature T _SP at the target place j (step 116).

The air conditioning instruction unit 15D communicates the start of the air conditioning feedback control operation with the estimated temperature T _S at the target location j as the set temperature T _SP based on the set temperature data 14G. The air conditioning system is instructed via the I / F unit 11 (step 117), and the series of air conditioning feedback control processes is finished.

On the other hand, when the temperature error ΔT _SM is within the allowable range T _L (step 115: NO), the air conditioning feedback control determination unit 15C ends the series of air conditioning feedback control processing.

9 is an explanatory diagram showing an air conditioning feedback control operation according to the first embodiment. Here, the air conditioning estimation control is started at time t ₀ , the measured temperature T _M of the target place j gradually decreases from the temperature T ^t0 _M , and the temperature T ^t1 _M at time t ₁ . ), And monotonously decreases from the present time t to a temperature T ^t _M thereafter.

Here, the time t ₁ corresponds to the time returned from the current time t to the past by the determination time Δt, and the measured temperature change ΔT _MM is ΔT _MM = abs (T ^t1 _M -T ^t _M To obtain. The function [abs ()] is a function that finds an absolute value.

If the measured temperature change ΔT _MM is within the normal determination temperature range T _D , the temperature field at the target place j is stable, and the measured temperature change ΔT _MM is not transient, and the target place j Is determined to be corrected by the air conditioning feedback control.

The temperature error ΔT _SM is obtained by ΔT _SM = abs (T _S −T ^t _M ). When the temperature error ΔT _SM is larger than the allowable range T _L , the deviation between the estimated temperature T _S at the target location j and the actual measurement temperature T _M is large, so this temperature error ΔT Switching to the air conditioning feedback control for the target location j for correcting _SM ) is determined. Then, the air conditioning system 20 starts the air conditioning feedback control operation by setting the estimated temperature T _S at the target place j as the set temperature T _SP .

[Simulation Result]

10 is a structural example of an air conditioning space to be subjected to air conditioning. Here, four jets (A, B, C, D) and nine suction ports are arranged on the ceiling of the air conditioning space 30, and three heating elements including a personal computer or the like are disposed on the bottom of the air conditioning space 30. exist. Moreover, in the air conditioning space 30, the target place i used as the object of air conditioning estimation control, and the target place j used as the object of air conditioning feedback control are set, respectively.

11 is an explanatory diagram showing a simulation result. Here, the time t _{0 at} which the air conditioning estimation control is started, the time t at which the air conditioning feedback control is started, and the time t _{2 at which} a predetermined time has elapsed since the start of the air conditioning feedback control are performed. The change of temperature and air volume in each location is shown.

First, with respect to the target place i, the estimated temperature was 27.6 [° C.] and the target temperature was 25.0 [° C.] at the time t ₀ before the execution of the air conditioning estimation control. In t), it can be seen that the estimated temperature changes to 25.0 [° C.] and coincides with the original target temperature.

In addition, about the jet ports A-D, the air velocity of jet air was 1.00 [m / s], respectively, and the temperature was 26.0 [degreeC] at the time t ₀ before air conditioning estimation control execution, respectively. By executing, at the time t, the wind speed of the blown air changes to 1.33 [m / s], 1.11 [m / s], 1.13 [m / s] and 1.05 [m / s], respectively, and the temperature It turns out that air conditioning estimation control was performed by changing to 23.4 [° C], 23.6 [° C], 25.2 [° C], and 25.5 [° C].

In addition, with respect to the outlet (A), in the air conditioning feedback control is executed after the time (t _2), ejecting the air velocity and change to 0.85 [m / s], and the temperature is changed to 23.9 [℃], the air outlet (A) It can be seen that air conditioning feedback control has been performed for.

Accordingly, the target place j has an estimated temperature T _S of 24.9 [° C.], a measurement temperature T _M of 24.5 [° C.], at a time t after the air conditioning estimation control is executed, and a temperature error. It was measured that (ΔT _SM ) was 0.4 [° C.], and the air conditioning feedback control using 24.9 [° C.], which is equal to the estimated temperature T _S , as the set temperature T _SP , and measured at a later time t ₂ . It turns out that the measurement temperature T _M becomes equal to the estimated temperature T _S by changing the temperature to 24.9 [° C.] and performing air conditioning feedback control.

[Effects of the First Embodiment]

Thus, in this embodiment, after starting air conditioning estimation control, the measurement temperature T _M measured by the air conditioning feedback control determination part 15C in the target place j in the air conditioning space 30, and a target place. By comparing the reference temperature with respect to (j), it is determined to switch to the air conditioning feedback control for the target place j for correcting the temperature error ΔT _SM , and when the switching to the air conditioning feedback control is determined, the air conditioning The instruction unit 15D is configured to instruct the air conditioning system 20 to start execution of the air conditioning feedback control operation with the estimated temperature T _S at the target place j as the set temperature T _SP .

Thereby, the error which generate | occur | produces when air conditioning control is carried out by the operation amount obtained by the distribution system heat-flow analysis method can be adjusted by the air conditioning feedback control operation by the air conditioning system 20. FIG.

Therefore, it is possible to provide a comfortable air-conditioning environment set by the occupants to the occupants in the air conditioning space 30.

In the present embodiment, the air conditioning feedback control determination unit 15C compares the measured temperature change ΔT _MM of the target location j with the constant determination temperature width T _D at a constant determination time Δt. After confirming the stability of the temperature field in the target place j, and confirming the stability of the temperature field in the target place j, the air conditioning to the target place j is performed based on the temperature error ΔT _SM . Since the switching to the feedback control was determined, after confirming that the measurement temperature change ΔT _MM is not transient and should be corrected by the air conditioning feedback control for the target place j, the switching to the air conditioning feedback control is determined. can do.

As a result, when the measurement temperature change ΔT _MM is transient, switching to air conditioning feedback control is not determined, and execution of inappropriate air conditioning feedback control can be avoided.

Further, the estimated reference temperature in the present embodiment, the air conditioning estimated after starting the control, the target location (j) measuring the temperature (T _M) and a heat flow analysis target location (j) obtained by the processing unit (15B) in the temperature (T _S) for air-conditioning the feedback control for the temperature error by comparing the (ΔT _SM) the tolerance (T _L) which is set in advance with respect to the target location (j) for correcting the temperature error (ΔT _SM) Is determined, the air conditioner indicating unit 15D sets the estimated temperature T _S at the target place j as the set temperature T _SP to determine the air conditioner. Since the air conditioning system 20 is instructed to start execution of the feedback control operation, it is possible to accurately determine switching to air conditioning feedback control for the target place j.

Second Embodiment

Next, with reference to FIG. 12, the air conditioning control apparatus 10 which concerns on 2nd Embodiment of this invention is demonstrated. 12 is a flowchart illustrating air conditioning feedback control processing according to the second embodiment.

In 1st Embodiment, when the switch to air-conditioning feedback control was determined, the case where the stability of the temperature field of the target site j was confirmed at that time was demonstrated as an example. In this embodiment, by estimating whether the measurement temperature T _M converges in the tolerance range T _L in the future based on the inclination A of the measurement temperature T _M of the target place j, A case of determining the switching to the air conditioning feedback control will be described.

In the present embodiment, the air conditioning feedback control determining unit 15C returns to the past by the measurement temperature T _M of the target place j and the predetermined determination time Δt from the measurement temperature T _M. comparing the reference temperature including the measured temperature measured in j), and calculating the measured temperature gradient a in the target place j from the measured temperature change ΔT _MM of the obtained target place j; measuring a temperature corresponding to a predetermined temperature error (ΔT _SM) (T _M) based on slope [a (ΔT _SM)] and measuring and comparing the temperature gradient (a), measuring the temperature of the target location (j) of the (T _M) Is equal to or greater than the estimated temperature T _S of the target site j, and the measured temperature gradient a is equal to or greater than the reference slope A (ΔT _SM ), and the measured temperature T _M of the target site j is in the case of less than the estimated temperature (T _S) of the target location (j), again measuring the temperature gradient (a) is lower than the reference slope [-A (ΔT _SM)], for that destination location It has a function of determining the transition to the conditioning feedback control.

In addition, about the other structure in the air conditioning control apparatus 10 which concerns on this embodiment is the same as that of 1st Embodiment, and it abbreviate | omits about the detailed description here.

[Operation of Second Embodiment]

Next, an air conditioning feedback control operation will be described as an operation of the air conditioning control device 10 according to the present embodiment with reference to FIG. 12.

The arithmetic processing unit 15 of the air conditioning control device 10 starts the air conditioning feedback control process of FIG. 12 after the above air conditioning estimation control process of FIG. 7 is executed.

The air conditioning feedback control determination unit 15C first extracts the measurement temperature T _M of the target place j from the measurement temperature data 14C acquired by the data input unit 15A (step 200), and analyzes the heat flow. From the distribution data 14D obtained by the processing unit 15B, the estimated temperature T _S of the target place j is extracted (step 201), and the estimated temperature T of the target place j is present at the current time t. _The temperature error ΔT _SM (absolute value) between _S ) and the actual measured temperature T _M is calculated (step 202).

Next, the air conditioning feedback control determination unit 15C determines from the measurement temperature change ΔT _MM indicating the change in the measurement temperature T _M in the determination time Δt for the time returned from the present time t to the past. The slope (A = ΔT _MM / Δt) of the measured temperature T _M in the time Δt minutes is calculated (step 203), and the temperature is based on a conversion table or a function formula preset in the storage unit 14. It acquires the reference tilt error [a (ΔT _SM)] of from (ΔT _SM) (step 204).

13 is an explanatory diagram showing a relationship between a temperature error and a reference slope. Here, in each of the regions where the temperature error ΔT _SM is positive and negative, a relationship in which the reference slope A (ΔT _SM ) decreases monotonously decreases as the temperature error ΔT _SM increases. This relationship depends on the time constant of the temperature change, which is determined from the width of the air conditioning space 30 and the capability of the air conditioning equipment of the air conditioning system 20, and may be obtained by experiment or the like beforehand. This relationship may be expressed by a conversion table or may be a function expression.

Subsequently, the measured temperature T _M and the estimated temperature T _S are compared (step 205), and when the measured temperature T _M is equal to or larger than the estimated temperature T _S (step 205: YES), the air conditioning feedback control plate The step 15C compares the measured temperature gradient a with the reference slope A (ΔT _SM ) (step 206).

Here, when the measurement temperature gradient a is equal to or greater than the reference slope A (ΔT _SM ) (step 206: YES), in the future, the measurement temperature T _M of the target place j is converged within the allowable range T _L. Since it is predicted not to do so, the air conditioning feedback control determination unit 15C determines the switching to the air conditioning feedback control for the target place j for correcting the temperature error ΔT _SM , and estimates the target place j. The air conditioning instruction unit 15D is notified of the set temperature data 14G in which the temperature T _S is set as the new set temperature T _SP at the target place j (step 207).

Based on this set temperature data 14G, the air conditioning instruction unit 15D sets the estimated temperature T _S at the target place j as the set temperature T _SP to start execution of the air conditioning feedback control operation. The air conditioning system is instructed via the communication I / F unit 11 (step 208), and the series of air conditioning feedback control processes is finished.

On the other hand, in step 206, when the measurement temperature gradient a is smaller than the reference slope A (ΔT _SM ) (step 206: NO), the air conditioning feedback control determination unit 15C ends the series of air conditioning feedback control processing. .

In addition, in step 205, when the measurement temperature T _M is smaller than the estimated temperature T _S (step 205: NO), the air conditioning feedback control determination unit 15C performs the measurement temperature slope a and the reference slope [-A. (ΔT _SM )] (step 209).

Here, when the measurement temperature gradient a is smaller than the reference slope [-A (ΔT _SM )] (step 209: YES), in the future, the measurement temperature T _M of the target place j is in the allowable range T _L. Since it is predicted to deviate from the air conditioning feedback control determination unit 15C, the air conditioning feedback control determining unit 15C determines the switching to the air conditioning feedback control for the target place j for correcting the temperature error ΔT _SM , and the The air conditioning instruction unit 15D is notified of the set temperature data 14G in which the estimated temperature T _S is set as the new set temperature T _SP at the target place j (step 207).

Based on this set temperature data 14G, the air conditioning instruction unit 15D uses the estimated temperature T _S at the target location j as the set temperature T _SP to communicate the start of execution of the air conditioning feedback control operation. The air conditioning system is instructed via the I / F unit 11 (step 208), and the series of air conditioning feedback control processes is finished.

On the other hand, in step 209, when the measurement temperature gradient a is equal to or greater than the reference gradient [-A (ΔT _SM )] (step 209: NO), the air conditioning feedback control determination unit 15C ends the series of air conditioning feedback control processing. .

It is explanatory drawing which shows the air conditioning feedback control operation which concerns on 2nd Embodiment. Here, the air conditioning estimation control is started at time t ₀ , the measured temperature T _M of the target place j gradually decreases from the temperature T ^t0 _M , and the temperature T at the present time t after that. forging decreases to ^t _M ), and the inclination of this measurement temperature becomes a.

In this case, although the measurement temperature T _M at the time t is more than the estimated temperature T _S , the measurement temperature gradient a is smaller than the reference slope [-A (ΔT _SM )] and the measurement temperature T _M ) Gradually changes (reduces here), so it can be predicted that the measurement temperature T _M converges within the allowable range T _{L in the} future.

15 is another explanatory diagram showing the air conditioning feedback control operation according to the second embodiment. In this case, although the measurement temperature T _M at the time t is smaller than the estimated temperature T _S , the measurement temperature gradient a is larger than the reference slope [-A (ΔT _SM )] and the measurement temperature T _M ) Changes relatively large (reduced here), so it can be predicted that the measurement temperature T _M deviates from the allowable range T _{L in the} future.

[Effects of Second Embodiment]

As described above, the measuring the temperature gradient in the air conditioning feedback control board in the state (15C), a constant determination time target location (j) from a measured temperature change (ΔT _MM) of the target location (j) of the (a) calculating a, a pre-set temperature error (ΔT _SM) measuring the temperature (T _M) based on slope [a (ΔT _SM)] and compared, and the measured temperature (T _M) is the estimated temperature (T _S) at least corresponding to the When the measured temperature gradient a is equal to or greater than the reference gradient A (ΔT _SM ), and the measured temperature T _M is smaller than the estimated temperature T _S , and the measured temperature gradient a is the reference slope [−]. A (ΔT _SM )], the switching to the air conditioning feedback control for the target place j is determined.

Thereby, after starting air conditioning estimation control, the temperature field of the target site j is stabilized, and it does not wait until the time which can confirm whether the measurement temperature T _M converges in the tolerance range T _L , or not, The switch to the air conditioning feedback control for the target place j can be determined early. Therefore, when it determines with switching to the air conditioning feedback control with respect to the target place j, air conditioning feedback control can be started in a short time after starting air conditioning estimation control, As a result, the temperature error in the target place j is as a result. Can be corrected early.

[Third Embodiment]

Next, with reference to FIG. 16, the air conditioning control apparatus 10 which concerns on 3rd Embodiment of this invention is demonstrated. 16 is a flowchart illustrating air conditioning feedback control processing according to the third embodiment.

In 1st Embodiment, when the switch to air-conditioning feedback control was determined, the case where the stability of the temperature field of the target site j was confirmed at that time was demonstrated as an example. In the present embodiment, the case where the switching to the air conditioning feedback control for the target place j is determined when the predetermined waiting time t _W has elapsed after the air conditioning estimation control starts.

In the present embodiment, the air conditioning feedback control determining unit 15C has a function of counting the elapsed time Δt from the start of the air conditioning estimation control, and the waiting time t set in the elapsed time Δt and the storage unit 14. _W ) has a function of comparing the switching to the air conditioning feedback control for the target place j when the elapsed time Δt becomes the waiting time t _W or more.

In addition, about the other structure in the air conditioning control apparatus 10 which concerns on this embodiment is the same as that of 1st Embodiment, and it abbreviate | omits about the detailed description here.

[Operation of Third Embodiment]

Next, with reference to FIG. 16, the air conditioning feedback control operation | movement is demonstrated as operation | movement of the air conditioning control apparatus 10 which concerns on this embodiment.

The arithmetic processing unit 15 of the air conditioning control device 10 starts the air conditioning feedback control process of FIG. 16 after the air conditioning estimation control process of FIG. 7 described above is executed.

The air conditioning feedback control judging unit 15C first displays the elapsed time Δt from the air conditioning estimation control unit 15B to the present time (step 300), and the elapsed time Δt and the storage unit. The waiting time t _W set in (14) is compared (step 301).

Here, when the elapsed time Δt is smaller than the waiting time t _W (step 301: NO), the process returns to step 300.

On the other hand, when the elapsed time Δt is equal to or larger than the waiting time t _W (step 301: YES), the air conditioning feedback control determination unit 15C determines the switching to the air conditioning feedback control for the target place j, and the target The air conditioning instruction unit 15D is notified of the set temperature data 14G in which the estimated temperature T _{S of the} place j is set as the new set temperature T _SP at the target place j (step 302).

Based on this set temperature data 14G, the air conditioning instruction unit 15D starts the execution of the air conditioning feedback control operation in which the estimated temperature T _S at the target place j is the set temperature T _SP . The air conditioning system is instructed via the / F unit 11 (step 303), and the series of air conditioning feedback control processes is finished.

It is explanatory drawing which shows the air conditioning feedback control operation which concerns on 3rd Embodiment. Here, the air conditioning estimation control is started at time t ₀ , the measured temperature T _M of the target place j gradually decreases from the temperature T ^t0 _M , and the temperature T at the present time t after that. monotonically decreases to ^t _M ).

In this case, regardless of the measurement temperature T _M , switching to the air conditioning feedback control for the target place j is determined at the time t ₂ after the waiting time t _W has elapsed from the time t ₀ . do.

[Effect of 3rd Embodiment]

As described above, in the present embodiment, when the constant waiting time t _W has elapsed since the air conditioning feedback control determination unit 15C starts the air conditioning estimation control, it is determined to switch to the air conditioning feedback control for the target place. Since it is made so that the determination process by the air conditioning feedback control determination part 15C can be simplified very much.

[Expansion of Embodiment]

As mentioned above, although this invention was demonstrated with reference to embodiment, this invention is not limited to the said embodiment. Various changes which can be understood by those skilled in the art can be made to the structure and details of the present invention within the scope of the present invention.

Moreover, in each embodiment, the air conditioning environment of the whole air conditioning space 30 is controlled by the air conditioning estimation control using the distribution system heat-flow analysis method using the target temperature in the target place i as object data. Although the case where the temperature error in the target place j which arises in the above is correct | amended by air conditioning feedback control was demonstrated as an example, it is not limited to this. For example, in air conditioning estimation control, these wind speeds and humidity may be made into target state quantity by inputting the wind speed and humidity in the target place i as target data instead of target temperature. In the air conditioning feedback control, instead of the temperature error, the air speed and humidity error at the target location j may be corrected by the air conditioning feedback control.

10... Air conditioner 11. Communication I / F Department
12... Operation input section 13.. Screen display
14 ... Storage unit 14A... Setting condition data
14B... Boundary condition data 14C... Instrument temperature data
14D... Distribution data 14E... Purpose data
14F... MV data 14G.. Set temperature data
15... Arithmetic processing unit 15A. Data input
15B... Thermal fluid analysis processing unit 15C... Air conditioning feedback control judgment part
15D... Air conditioning indicator 20. Air conditioning system
21 ... Air conditioning section 22. temperature Senser
23 ... Air supply adjusting unit 30... HVAC space
T _M ... Measurement temperature Δt... Judgment time
ΔT _MM ... Measurement temperature change T _D. Normal judgment temperature range
T _S … Estimated temperature ΔT _SM . Temperature error
T _L. Permissible range T _SP . Set temperature
a ... Measurement temperature gradient A (ΔT _SM ). Reference slope
t _W. Waiting time t _E ... Shutdown wait time

Claims (10)

Using the distribution system heat flow analysis method, the temperature of the air conditioning space and the airflow distribution are estimated from the air conditioning situation of the input air conditioning space, and the air conditioning control is performed based on the distribution and the target temperature at the target place in the air conditioning space. And a heat flow analysis processing section for estimating an operation amount related to the air flow system, and adjusting the blowing speed and the blowing temperature of the conditioner air in each blowing port provided in the air conditioning space based on the operation amount obtained in the heat flow analysis processing section. In the air conditioning control device for performing air conditioning estimation control for controlling the air conditioning environment of the entire air conditioning space,
An air conditioning feedback control deciding unit that makes a determination to switch to air conditioning feedback control based on a termination condition of a predetermined air conditioning estimation control effect after starting the air conditioning estimation control;
When the switching to the air conditioning feedback control is determined by the air conditioning feedback control determining unit, the air conditioning instruction unit instructing the air conditioning system to start execution of the air conditioning feedback control operation with the estimated temperature as the set temperature.
An air conditioning control device comprising: a. The said air conditioning feedback control deciding part confirms the stability of the temperature field in the target place by comparing the change of the measurement temperature of a specific target place with a normal determination temperature width in a fixed determination time. And when the stability of the temperature field at the target location is confirmed, the switching to the air conditioning feedback control for the target location is determined. The said air conditioning feedback control determination part is a temperature error between the measurement temperature and the reference temperature containing the estimated temperature in the specific target place obtained by the said heat flow analysis processing part after starting the said air conditioning estimation control, An air conditioning control device, characterized by determining the switching to the air conditioning feedback control for the target place for correcting the temperature error by comparing the temperature error with a preset allowable range. The said air conditioning feedback control determination part is a said target location obtained by comparing a measurement temperature with the reference temperature which returns to the past for a predetermined determination time from this measurement temperature, and includes the measurement temperature measured at the specific target site. The measurement temperature gradient at the target place from the measured temperature change of the measurement site, wherein the measurement temperature at the target place is greater than or equal to the estimated temperature at the target place, and the measurement temperature slope corresponds to a preset temperature error. When the temperature is equal to or more than the reference slope of the target site, and when the measured temperature of the target place is smaller than the estimated temperature of the target place, and the measured temperature slope is smaller than the reference slope of the measured temperature corresponding to the preset temperature error. To determine switching to the air conditioning feedback control for the target place. The air conditioning control device according to claim. The air conditioning control device according to claim 1, wherein the air conditioning feedback control determining unit determines the switching to the air conditioning feedback control at a time point when a predetermined waiting time has elapsed after starting the air conditioning estimation control. Using the distribution system heat flow analysis method, the temperature of the air conditioning space and the airflow distribution are estimated from the air conditioning situation of the input air conditioning space, and the air conditioning control is performed based on the distribution and the target temperature at the target place in the air conditioning space. And a heat flow analysis processing section for estimating an operation amount related to the air flow system, and adjusting the blowing speed and the blowing temperature of the conditioner air in each blowing port provided in the air conditioning space based on the operation amount obtained in the heat flow analysis processing section. In the air conditioning control method used for an air conditioning control device for performing air conditioning estimation control for controlling the air conditioning environment of the entire air conditioning space,
An air conditioning feedback control determining step of, after the air conditioning feedback control determining unit starts the air conditioning estimation control, determines to switch to the air conditioning feedback control based on a termination condition of the pre-defined air conditioning estimation control effect;
When the air conditioning instruction unit is determined to switch to the air conditioning feedback control according to the air conditioning feedback control determination step, the air conditioning instruction step of instructing the air conditioning system to start execution of the air conditioning feedback control operation with the estimated temperature as the set temperature.
Air conditioning control method comprising a. The said air conditioning feedback control determination step confirms the presence or absence of the stability of the temperature field in the target place by comparing the change of the measurement temperature of a specific target place with a normal determination temperature width in a fixed determination time, and the target When the stability of the temperature field at the place is confirmed, switching to the air conditioning feedback control for the target place is determined. The said air conditioning feedback control determination step is a temperature error of the reference temperature containing the measured temperature and the estimated temperature in the specific target place obtained by the said heat flow analysis processing part after starting the said air conditioning estimation control. And a switch to the air conditioning feedback control for the target place for correcting the temperature error, by comparing with the allowable range preset for the temperature error. The said air conditioning feedback control determination step is the said object obtained by comparing a measurement temperature with the reference temperature which returns to the past for a predetermined determination time from this measurement temperature, and includes the measurement temperature measured at the specific target site. The measured temperature gradient at the target place is calculated from the measured temperature change of the place, wherein the measured temperature at the target place is equal to or greater than the estimated temperature at the target place, and the measured temperature slope corresponds to a preset temperature error. When the measurement temperature is equal to or greater than the reference slope of the measurement temperature, and the measurement temperature of the target location is smaller than the estimated temperature of the target location, and the measurement temperature slope is smaller than the reference slope of the measurement temperature corresponding to the preset temperature error. In a case where it is determined to switch to the air conditioning feedback control for the target place. An air conditioning control method, characterized in that. 7. The air conditioning control method according to claim 6, wherein the air conditioning feedback control determination step determines switching to the air conditioning feedback control at a time point when a predetermined waiting time has elapsed after starting the air conditioning estimation control.

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