JP2022157917A - air conditioning system - Google Patents

Abstract

To enable "change of FDU operating value setting" by individual attendees, and optimize an air-conditioning environment of the entire virtual section.SOLUTION: An air conditioning system comprises a thermopile system that causes a non-contact temperature sensor to measure a surface temperature of an FDU section that virtually divides an air-conditioning target, regards the surface temperature as a local room temperature of the FDU section, and calculate an FDU operating output value so as to become a target temperature arbitrarily set in advance. The calculated value is given to an FDU system to control FDU of each FDU section to produce a comfortable air-conditioning state.SELECTED DRAWING: Figure 1A

Description

The present invention relates to air conditioning control of a large office (room such as a work room) arranged in a building such as an office building. In addition to the temperature of each virtual compartment where the room to be air-conditioned is conceptually divided by the duct system (hereinafter referred to as the FDU system or FDU system) using the outlet with a fan (fan diffuser unit: FDU) installed on the surface The present invention relates to an air conditioning system with good response, in which an appropriate temperature is obtained for each conceptually divided indoor space (virtual compartment) as a configuration capable of efficiently measuring the surface temperature of each area of the virtual compartment.

For example, a variable air volume single duct system is generally used for air conditioning in indoor working environments such as office buildings, which are medium-sized or large-sized living rooms.
In the office, which is a large space, a variable air volume device (VAV) is installed for each virtual section that further divides the perimeter area near the outer wall and windows, and the interior area inside. , In principle, air is supplied at a constant temperature through an air supply duct except when the load is small, a temperature sensor is installed on the ceiling surface, etc. for each virtual section, and the temperature is set by a VAV controller, etc. using the VAV as an operating device. Based on the output signal calculated based on the difference between the value and the temperature measurement value, the opening/closing control of the variable air volume section of the VAV is performed to control the supply of the supplied air volume corresponding to the indoor load.

In this way, it is common to measure and control the representative temperature of the virtual compartment, but there are cases where this control is insufficient. The sensible temperature of indoor occupants (workers, etc.) depends on factors (parameters) such as resident preferences, room temperature around the occupants, radiant temperature (radiant heat from indoor surfaces), wind speed, etc. If the room temperature is controlled only by the partial room temperature, even if the room temperature is as set, the thermal sensation of the occupant will not always be good, and may tend to be uncomfortable.
Developing from the above general variable air volume single duct method, in order to make the virtual compartment a little smaller, the ceiling space is generally used as the return air chamber, but the ceiling space is used as the air supply chamber and the air outlet. There is an FDU system as disclosed in Japanese Patent Application Laid-Open No. 2019-132538 (Patent Document 1) as a system in which a variable air volume fan is built in and the air volume of each air outlet can be changed according to the preference of the resident.

FIG. 9 is a schematic explanatory diagram of a conventional indoor air-conditioning system as an FDU system, in which heat-generating equipment (not shown) such as OA equipment is accommodated in addition to occupants 5 . Reference numeral 6 indicates a terminal for attendees. Although FIG. 9 shows that one virtual compartment occupies the entire room for ease of explanation, there are actually a plurality of virtual compartments.
There is a ceiling chamber 1a in the ceiling space of the building 1, and a plurality of FDUs 7 are provided in the ceiling 4 between the room (virtual division) 1b. An underfloor chamber 1c is formed under the floor 3 of the room 1b, and suction ports 3a are formed at various points of the floor 3. As shown in FIG. The FDU7 is a lightweight fan-integrated diffuser unit with a small built-in fan that has a variable air volume. In FIG. 9, the line connected to the FDU 7 does not represent a duct, but is an image of a signal line. The ceiling chamber 1a is an air supply chamber, and the FDU is not connected to a duct, and the temperature-controlled air in the ceiling chamber 1a is sucked by its own fan and blown out under the ceiling.

Supply air SA from an air conditioner (not shown) flows from an air intake 8 into the ceiling chamber 1a. The enrolled person 5 can change the air volume to his/her preference by operating the operation output value of the FDU 7 with his own terminal (enrolled person terminal) 6 .

That is, the FDU system 11 is operated with operating values set according to a preset operating schedule. An operation signal (operation command) individually instructed from the enrollee terminal 6 is transferred to the FDU system 11 via the communication line 16 .
The FDU system 11 transfers a command to change the operation output value of the FDU 7 corresponding to the operated enrollee terminal 6 to the corresponding FDU 7 via the communication slave device 15 . The FDU 7 adjusts the operation output value according to the change command signal. This command signal can be transferred using a LAN communication line or a multi-carrier communication (PLC) using a power line that supplies power for driving the subscriber terminals and the FDU.

In addition, the air (SA) supplied from each FDU 7 is air-conditioned from each suction port 3a provided on the floor 3 after the heat load existing in the room 1b is air-conditioned with the heat or cold of the air itself. It is exhausted to 1c and joins. The merged air returns to the air conditioner (not shown) as return air RA. The air conditioner purifies this return air, adds outside air from the outside environment as necessary, and supplies the air from the air intake 8 to the ceiling chamber 1a.

In this system, each occupant's adjusted FDU operating value is reset when the date changes. Even with a configuration that does not reset, the heat load fluctuates by the hour, and each occupant has a different thermal sensation. was there.
Since the FDU system is well known, only the necessary items will be explained here. For details of the FDU system, refer to, for example, Patent Document 1 and Patent Document 2.

In Patent Document 1, an air outlet (FDU) equipped with a fan is provided from the ceiling chamber to the air conditioning section, a variable air volume unit that adjusts the amount of conditioned air supplied to the ceiling chamber, and the measured value from the return air temperature sensor. Disclosed is an air-conditioning system capable of adjusting the amount of air-conditioned air supplied to the room and controlling the FDU by operating a personal computer or the like of the person present.

In addition, Patent Document 2 provides a supply air temperature sensor that measures the temperature of the air outlet for each virtual section set to be air-conditioned, and a control device that controls the supply air temperature based on the measured value of this sensor. air conditioning system.

JP 2019-132538 A Japanese Patent Application Laid-Open No. 2020-183820

The air-conditioning system disclosed in Patent Document 1 enables individual control of the FDU by operating a personal computer or the like (including smartphones, tablets, etc.) of the persons present. However, every time the date changes, it is necessary for the attendees to set the FDU to their preferred state. However, it may cause unnecessary stress (complaints between the people present or to the air conditioning manager).

In the system disclosed in Patent Document 2, in addition to the possibility of stress generation in the technology described in Patent Document 1, the temperature of the air supply to the ceiling chamber is controlled by the temperature of the air outlet for each virtual section to be air-conditioned. Therefore, in order to set the air-conditioning conditions of individual virtual compartments in a well-balanced manner, advanced adjustment calculations are required, the control procedure becomes extremely complicated, and the load on the system increases.

The object of the present invention is to provide an air-conditioning system that solves the problems of the prior art by optimizing the air-conditioning environment of the entire virtual section while being able to respond to "changes in FDU operating value settings" by individual people present. to do.

In order to achieve the above object, the indoor air conditioning method according to the present invention uses a non-contact temperature sensor to measure the surface temperature near the actual heat load, not the ceiling surface, of the room to be air-conditioned (divided virtual division: hereinafter referred to as FDU division). and regarded as the local room temperature of the FDU section, and the operating output correction value of the FDU is calculated so as to achieve an arbitrarily set target temperature. By controlling the FDU of each FDU section with this calculated value, a comfortable air-conditioning state can be produced.

The representative configurations of the present invention for achieving the above objects are listed below. Hereinafter, in order to clearly understand the present invention, reference numerals of the embodiments described later are attached to each configuration, but the present invention is not limited to the configurations specified by these reference numerals. In the present invention, measuring the surface temperature means that radiation from the surface of the floor, inner wall, various furniture placed in the room, fixtures, various electrical and electronic devices, and residents (humans, workers) in the FDU section means to measure the heat generated.

The air conditioning system according to the present invention includes:
An air conditioning system for maintaining an optimal thermal environment in a virtual section (FDU section, hereinafter also referred to as a room) 1b obtained by virtually dividing the space of the building 1 to be air conditioned into one or more small sections. ,
(1) an air intake 8 provided in the ceiling 4 of each FDU section to introduce clean air (supply air) from an air conditioner into the ceiling chamber 1a;
an FDU 7 installed on the ceiling 4 of each FDU section to downwardly supply the conditioned air to the FDU section 1b;
A radiation thermometer (such as a thermopile sensor) 10 that is installed near the FDU 7 provided on the ceiling of each FDU section 1b and measures the surface temperature in the FDU section 1b;
an enrolled employee work desk 5A and an attendant terminal 6 installed in each of the FDU sections 1b so that they can be present;
an air discharge port 9 for discharging treated air (return air) from the vicinity of the floor 3 of the virtual section 1b;
an FDU system 11 that calculates and outputs an operating output value for controlling the amount of air blowing to the FDU 7, sets an initial operating output value, and performs overall management of the system;
A thermopile system 12 that collects the measured values of the radiation thermometers 10 installed in each FDU section 1b and calculates an operation output correction value to be given to the FDU system 11;
with
The thermopile system 12 includes initial target temperature data set in the FDU system, surface temperature data of each FDU section collected by the thermopile system 12, and generated by operating the person terminal 6. The FDU operation output value to be given to each of the FDUs 7 in the FDU system 11 is calculated based on the operation command data.

(2) The thermopile system 12 is provided with means for monitoring the collection cycle of the measured value data of the radiation thermometer 10 installed in the FDU section 1b, and the collection cycle of the measured value data is set at a constant cycle (preferably 30 ~ 600 seconds/time).

(3) The thermopile system 12 has a transmission cycle setting means for transmitting the FDU operating output correction value calculated from the collected measured values of the radiation thermometer to the FDU system 11, and the transmission cycle is fixed.

(4) The FDU system 11 includes means for setting the data transmission timing of the operation output value to each FDU 7, and sets the data transmission timing of the operation output value to the FDU 7 of each FDU section 1b at a constant cycle (preferably (every 20 minutes) and an arbitrary pattern at the time when an operation command signal is generated from the terminal 6 of the person present (2 minutes after the operation). .

It should be noted that the present invention is not limited to the above configurations and the configurations described in the embodiments to be described, and various modifications are possible within the scope of the technical idea of the present invention.

According to the present invention, in addition to the temperature measurement value in the room to be air-conditioned, the surface temperature in all areas of the room is acquired without using a globe thermometer, and is calculated as the radiation temperature for each virtual section. By calculating the difference between the target setting value and the current estimated value and performing cascade control as the corrected temperature setting value for each virtual compartment, it is possible to obtain comfortable air conditioning control that is not biased according to the position in the living space. System.
In addition, according to the present invention, the FDU is controlled so as to achieve a preset target temperature, and the target temperature is changed when an operation for changing hot or cold is performed from a terminal or the like of a person present in the FDU section. , the operating value of the FDU is changed in a short period of time (eg, 2 minutes). This target temperature is stored in the system and will not be reset even if the date changes.

1 is an explanatory diagram of a first configuration example of an FDU section to which one embodiment of an air conditioning system according to the present invention is applied and a control system; FIG. An explanatory diagram of a second configuration example of the FDU section to which one embodiment of the air conditioning system according to the present invention is applied and a control system Explanatory diagram of FDU control flow and data processing system in FIG. Control relationship diagram of thermopile system and FDU in Fig. 1 Flowchart of thermopile temperature control in FIG. FIG. 2 is a plan view of a building for explaining an example of division of FDU sections according to the present invention; Explanatory drawing of the indoor thermo pattern displayed on the monitor of the central monitoring device corresponding to FIG. A plan view of a building for explaining another example of dividing the FDU section of the present invention. Explanatory drawing of the indoor thermo pattern displayed on the monitor of the thermopile system corresponding to Fig. 7 Explanatory drawing of the outline of the conventional indoor air-conditioning system.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of an air conditioning system according to the present invention will be described in detail with reference to examples.

FIG. 1A is an explanatory diagram of a first configuration example of an FDU section and a control system to which one embodiment of the air conditioning system according to the present invention is applied. FIG. 1B is an explanatory diagram of a second configuration example of the FDU section to which one embodiment of the air conditioning system according to the present invention is applied and a control system. 1A has an underfloor chamber 1c under the floor of the room to be air-conditioned (FDU section 1b) of the building 1, and the conditioned air that has passed through the room is exhausted to the underfloor chamber 1c through the suction port 3a and into the underfloor chamber 1c. The air is returned to an air conditioner (AHU) (not shown) through an air outlet 9 provided.

1B does not have an underfloor chamber, and the conditioned air that has passed through the room is returned to an air conditioner (not shown) from an air outlet 9 installed near the floor 3. FIG.

1A and 1B differ only in the presence or absence of an underfloor chamber, and the rest of the configuration including the air-conditioning control system is the same, so the following description will be made with reference to FIG. 1A as a representative.

In FIG. 1A, the air conditioning system according to the present invention optimizes a virtual section (hereinafter also referred to as an indoor or FDU section) 1b in which the space of a building 1 to be air-conditioned is virtually divided into one or more small sections. It is an air conditioning system that maintains a warm environment.
The ceiling 4 of each FDU section has an air intake 8 that introduces clean air (supply air) from the air conditioner into the ceiling chamber 1a, and an air intake 8 installed in the ceiling 4 of each FDU section for the FDU section 1b. It has an FDU 7 for downward supply of conditioned air and a radiation thermometer 10 installed near the FDU 7 provided on the ceiling of each FDU section 1b to measure the surface temperature inside the FDU section 1b. Here, a thermopile sensor, which is a typical device as a radiation thermometer, is used, but other radiation thermometers having similar functions are not excluded. For the sake of convenience, a radiation temperature control system using a radiation thermometer is referred to as a "thermopile system" here.
In order to measure the radiation temperature, it was necessary to install multiple globe thermometers at visually conspicuous heights in the living space, and it was necessary to take care not to bump into the globe thermometers. Accurate calculation of the surface temperature requires many glove thermometers to be placed in the living space, but in practice they were not generally placed all the time due to concerns about contact with people. A radiation thermometer installed on the ceiling measures the surface temperature in the lower part of the living room and regards it as the radiation temperature for control.

In each of the FDU sections 1b, an office desk 5A on which an occupant 5 is seated and a occupant terminal 6, which are installed to be able to be present, and an air-conditioning system through an air inlet 3a provided on the floor 3 of the FDU section 1b. An air discharge port 9 for discharging the air (return air) is provided.

Then, for the outdoor space isolated from the air-conditioned section by the side wall 2, the operating output value for controlling the air blowing amount is calculated and output to the FDU 7, and the initial operating output value is set and the system and a thermopile system 12 that collects the measured values of the radiation thermometers 10 installed in each FDU section 1b and calculates the operation output correction value to be given to the FDU system 11. The FDU system is equipped with means for the operator to input arbitrary values such as initial settings required for air conditioning, and the physical layout of the FDU section 1b.

The thermopile system 12 collects the surface temperature data of the FDU section 1 b and calculates the optimum temperature based on the target temperature data of each FDU from the FDU system 11 . Based on the data of the initial target temperature set in the FDU system, the data of the surface temperature of each FDU section collected by the thermopile system 12, and the data of the operation command generated by operating the terminal 6 of the person present , FDU operation output values to be given to the FDU system 11 to each of the FDUs 7 are calculated.

Measurement data from radiation thermometer 10 , preferably a thermopile sensor, is collected by communication line 16 to thermopile system 12 .

The thermopile system 12 includes means for monitoring the collection cycle of the measured value data of the radiation thermometer 10 installed in the FDU section 1b, and the collection cycle of the measured value data is set to a constant cycle (preferably 30 to 600 seconds / time ).

Further, the thermopile system 12 is provided with transmission cycle setting means for transmitting to the FDU system 11 the FDU operation output correction value calculated from the collected measurement values of the radiation thermometer, and the transmission cycle is fixed. The FDU operation output correction value calculated from the measurement value of the radiation thermometer indicates that the heating of the heating element (human body, OA equipment, etc.) in the FDU section is quickly detected and corrected.

The FDU system 11 is provided with timing setting means for setting the data transmission timing of the operation output value to each FDU 7, and sets the data transmission timing of the operation output value to the FDU 7 of each FDU section 1b at a constant cycle. This period is preferably a fixed pattern every 20 minutes, and an arbitrary pattern at the time when an operation command signal is generated from the terminal 6 of the person present (2 minutes after the operation). Data is sent from the communication means 16 to the communication slave device 15 . The communication slave unit 15 decodes the operation data of the FDU section 1b to which it belongs and gives it to its own FDU7.

Transfer of initial target temperature data set in the FDU system 11, surface temperature data of each FDU section collected by the thermopile system 12, operation command data generated by operation of the occupant terminal 6, and other data Although a dedicated communication line may be interposed, in this embodiment, power line multiple carrier (PLC) means 16 using a power line for supplying power energy for operating the system is used as the communication means.

FIG. 2 is an explanatory diagram of (a) the control flow of the FDU and (b) the data processing system in FIG. The FDU system 11 includes "air conditioner operation mode (cooling/heating/dehumidification, etc.)" set by the operation manager from the central monitoring device 13, and "thermopile detection temperature (floor, OA equipment, etc.)" set in the thermopile system 12. , surface temperature of fixtures, etc.) are input.

Further, the FDU system 11 receives operation instruction data (condition change request data) from the terminals 6 of the attendees (personal computer, smart phone, tablet, etc.). When the operation instruction data is input from this person's terminal 6, the above-described initial data or adjustment data is changed.

The thermopile system 12 receives current temperature data (current temperature data) from the thermopile sensor 10 in parallel with receiving the above data and target temperature from the FDU system 11 . The thermopile system 12 compares the current measured value data and the target temperature for each FDU, gives the FDU system an operation output correction value that makes the current measured surface temperature the target temperature, and the FDU system transfers this to each FDU. . This transfer cycle was set to about 20 minutes in consideration of the sensory tendency of the people present.

FIG. 3 is a control relationship diagram of the thermopile system and FDU in FIG. The thermopile system 12 is provided with FDU operation output value calculation means 12a, and calculates the FDU operation output value from an arbitrarily set target temperature and the temperature detected by the thermopile sensor. The calculation result is output to the FDU system 11 .
The FDU system 11 has an FDU operating output value updating means 11a, updates the current operating output value with an operating output correction value given from the thermopile system 12, for example, every 20 minutes, and updates the updated operating output value data. Give to each FDU7.

FIG. 4 is an explanatory diagram of a processing procedure for thermopile temperature control in FIG. 1, (a) is a flow chart of processing, and (b) is an explanatory diagram of data and terms in (a). The target temperature is arbitrarily set from the FDU system. Using this target temperature and the thermopile detection temperature [°C] for each FDU section, calculation is performed with a known calculation program for calculating an output based on the deviation that is built into the controller (step 1: S-1 ). The detected temperature to be input to the calculation program is selected from 1) average temperature, 2) maximum temperature, and 3) minimum temperature.

Using this calculation result, the indoor temperature change amount of the FDU section is calculated for changing the current temperature to the target temperature (S-2). Next, the FDU operation output value is calculated so as to achieve this temperature change amount, and is output to the FDU system (S-3). In response to this output, the FDU controls the amount of blown air so that the FDU section will reach the target temperature (S-4).

The indoor temperature of the FDU section changes due to the change in the amount of air supplied to the FDU section. This temperature is detected by a non-contact radiation sensor (thermopile sensor) installed in the section (S-5). This detected value is returned to the above (S-1) as the thermopile detected temperature for each FDU section, and calculation is performed. This loop is repeated.

When the target temperature is changed by the operation of the person present, the calculation is performed again, and, for example, after two minutes of operation, the FDU operation output value is output to control the FDU.
In addition, since the current temperature of the FDU section is updated every 20 minutes and the indoor situation changes, the calculation is performed again. Repeat this.

FIG. 5 is a plan view of a building for explaining an example of dividing the FDU section of the present invention. The building interior to be air-conditioned is virtually divided into equally spaced surface temperature measurement sections, and a microbolometer is installed in each section. It is the result of installing one by one and verifying the temperature distribution. In the figure, 2a is the wall surface of the building, 2b is the window, and the layout of office desks, bookshelves, etc. in the room is shown transparently. It is a thermography measured by a microbolometer installed in each surface temperature measurement section (corresponding to the FDU section described above). The measured data were displayed in a color pattern on the monitor of the thermopile system in FIG.

FIG. 6 is a thermograph displayed on the monitor of the thermopile system corresponding to FIG. 5, showing temperature differences in different colors. A cloud pattern (irregular curve) 30 indicates the vicinity of the boundary of different surface temperatures, and the inside and outside of this pattern are displayed in different colors. The color display is displayed so that the high and low surface temperatures can be visually identified by the difference in color hue/saturation.

Conventional air-conditioning control based on indoor temperature feedback could not guarantee comfort. It is possible to easily measure the surface temperature of a virtual section (FDU section 1b) in which a plurality of these are collected, and the room temperature estimated value can be calculated for each virtual section.

having virtual intra-partition FDU operation output value calculation means,
The intra-virtual compartment FDU operation output value calculating means calculates the difference between the target surface temperature set value arbitrarily set for each virtual compartment and the current surface temperature estimated value, and calculates the difference between the target surface temperature set value and the current surface temperature changing the intra-virtual compartment FDU operating output correction value so that the difference from the estimated value is zero, and outputting it to the intra-virtual compartment FDU operating output value updating means;
The intra-virtual compartment FDU operating output value update means virtualizes the corrected FDU operating output value of the virtual compartment, which is input as a correction value of the FDU operating output value and continues to be obtained by adding to or subtracting from the original intra-virtual space FDU operating output value. continue to output to the FDU per partition,
Cascade control is performed to operate the air supply volume so as to achieve the target surface temperature setting value of each virtual section that is changed one by one.
That is, the difference between the target temperature set value arbitrarily set for each virtual section and the current indoor temperature estimated value is calculated, and the difference between the target temperature set value and the current indoor temperature estimated value is zero. A correction value for the FDU operation output value is calculated.

Based on the difference between the target temperature and the estimated indoor temperature for each FDU section, cascade control is performed to operate the air supply volume so as to achieve the target temperature. As a result, it is possible to realize an indoor environment that maintains a comfortable thermal environment.

In addition, by installing multiple microbolometers to cover the entire interior of the building, it is possible to detect the surface temperature in the virtual compartment in real time. It is also possible to control the temperature setting value to be increased or decreased in advance.

FIG. 7 is a plan view of a building illustrating another example of division of the FDU section of the present invention, and FIG. 8 is an explanatory diagram of an indoor thermo pattern displayed on the monitor of the thermopile system corresponding to FIG. FIG. 7 shows the result of dividing the room into FDU sections with different sizes and installing one or a plurality of microbolometers in each section to verify the temperature distribution.

In this embodiment, for example, an area where there is no frequent temperature change is wide, a perimeter zone such as a room edge has a drastic temperature change due to a change in solar radiation depending on the direction, or an area where a lot of people come and go has a drastic temperature change. A narrower FDU partition is set for the area considered to be.

In FIG. 7, reference numeral 2 denotes an interior peripheral member, 2a denotes a wall surface, and 2b denotes a window. This virtually divided FDU section was divided into 7 sections (FDU1 to FDU7) with different areas, and the surface temperature was measured by thermography measured by one or more microbolometers for each section. This thermography is displayed on the monitor of the thermopile system.

FIG. 8 is an explanatory diagram of the indoor thermopattern shown in FIG. 7 displayed on the monitor of the thermopile system. Each FDU section measures the surface temperature of each FDU section by using a microbolometer with an optically enlarged viewing angle, or by arranging a plurality of microbolometers in one FDU section, and displays it on a monitor.

In this way, by installing microbolometers so as to cover the entire interior of the building, it is possible to detect the surface temperature in the virtual compartment in real time. In the area where the temperature change is considered to be drastic in , it is possible to provide an appropriate thermal environment by setting the FDU section more narrowly.

As the thermography acquisition means in each of the above-described embodiments, not only a microbolometer (microbolometer camera) but also an infrared camera using a CCD image sensor or a CMOS image sensor type photoelectric conversion element can be employed.

The size of the FDU section is flexibly set in consideration of the size of the target room, the amount of heat generated by the heating element, the number of indoor office furniture, fixtures, and the like. The number of installed thermographic acquisition means also takes into account the size of the FDU compartment.

Reference Signs List 1 Building 1a Ceiling chamber 1b Interior room 1c Underfloor chamber 2 Side wall 2a Wall surface 2b Window 3 Floor 3a Suction port 4・・・Ceiling 5・・・Attendees (humans, workers, etc.)
6 : Attendee terminal 7 : FDU (air outlet)
8 Air inlet 9 Air outlet 10 Temperature sensor (radiation thermometer: thermopile, etc.)
11 FDUs
11a FDU operation output value updating means 12 Thermopile system 12a FDU operation output calculation means 13 Central monitoring device 14 Network 15 Communication slave unit 16 Communication line

Claims (4)

An air-conditioning system for maintaining an optimum temperature in virtual compartments (hereinafter also referred to as FDU compartments) obtained by virtually dividing the space of a building to be air-conditioned into one or more small compartments,
an air intake provided in the ceiling of each FDU compartment for introducing clean air from an air conditioner into the ceiling chamber;
an FDU installed on the ceiling of each FDU compartment to downwardly supply the conditioned air to the FDU compartment;
a radiation thermometer installed in the vicinity of the FDU provided on the ceiling of each FDU compartment to measure the surface temperature in the FDU compartment;
an enrolled employee work desk and an attendant terminal installed in each of the FDU sections so that they can be present;
an air outlet for discharging treated air from near the floor of the virtual compartment;
an FDU system that outputs an operating output value for controlling the amount of air blowing to the FDU, sets an initial operating output value, and performs overall management of the system;
a thermopile system that collects the measured values of the radiation thermometer installed in each FDU section and calculates an operation output correction value to be given to the FDU system;
with
The thermopile system includes initial target temperature data set in the FDU system, surface temperature data of each FDU section collected by the thermopile system, and operation commands generated by operating the attendant terminals. and calculating an FDU operation output value to be given to each of the FDUs in the FDU system based on the data. 2. The thermopile system according to claim 1, further comprising means for monitoring a collection cycle of measurement value data of said radiation thermometer installed in said FDU section, wherein the collection cycle of said measurement value data is set to a constant cycle. Air conditioning system as described. 2. The air conditioning system according to claim 1, wherein said thermopile system comprises transmission cycle setting means for transmitting the collected measured value data of said radiation thermometer to said FDU system, and said transmission cycle is fixed. The FDU system includes a timing setting means for setting the data transmission timing of the operation output value to each FDU, and a fixed pattern in which the data transmission timing of the operation output value to the FDU of each FDU section is set to a constant cycle, and 2. The air-conditioning system according to claim 1, wherein the operation output value data is sent to said FDU at two timings, one being when an operation command signal of a terminal is generated and an arbitrary pattern.

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