JPH01291045A - Air-conditioning system control device - Google Patents

Abstract

PURPOSE:To enable detection of a radiation temperature without using an expensive detector and to control an air conditioner, by a method wherein a total sum of values obtained by multiplying an open air temperature and an indoor air temperature by a weight factor is decided as an average radiation temperature. CONSTITUTION:A total sum of values obtained by multiplying an open air temperature and an indoor temperature, detected by a detection input means 10 of an environmental element, by each weight factor is decided as an average radiation temperature 11 at the interior 17 of a room. Further, in a time zone for a given time starting from the starting of running of an air conditioning system and a time zone after lapse of a given time, a weight factor is varied, and from the average radiation temperature, an indoor temperature, a detected value of humidity, a clothes amount, an activity amount, and a set value of a velocity of air flow, amenity in a room is decided. The set ranges of amenity of at least two air conditioning related devices are individually set by a running selecting means 15 so that a computed value of the amenity is within a set range of set amenity. According to the running priority of the air conditioning related device, running or the stop of each air conditioning related device is decided. Running of or a stop command for each air conditioning related device is outputted from a device control means 16 to control each air conditioning related device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioning system control device that automatically controls an indoor environment so that it is comfortable for occupants.

[Prior Art] As a conventional method for considering the comfortable environment for indoor occupants, the method disclosed in Japanese Patent Application Laid-open No. 61-29638M detects air temperature, humidity, and radiant temperature as environmental elements, and also detects the amount of clothing a person wears. One example is a method of setting the amount of activity using a setting device and controlling an environmental control device to keep it within a comfortable range.

[Problems to be Solved by the Invention] In the conventional example described above, the indoor radiant temperature is detected by a detector, but the indoor radiant temperature varies depending on the structure of the room.
The indoor distribution of radiant temperature differs, and the detected value of radiant temperature varies depending on the orientation and installation position of the detector, making it difficult to expect the detected value of radiant temperature to be accurate. Also, the width of the room! )j temperature detectors were generally expensive.

Therefore, the present invention has been developed without being affected by the difference in the structure of the room, the difference in the indoor radiant temperature, and the difference in the detected value of the radiant temperature due to the orientation and installation position of the detector. The object of the present invention is to provide an air conditioning system control device that can detect indoor radiant temperature without using a radiant temperature, and can provide a comfortable environment by 1q.

[Means for Solving the Problems] The air conditioning system control device according to the present invention is capable of controlling two or more of an air conditioner, a ventilation device, a humidifier, a ceiling fan, and a floor heater that are installed indoors and adjust indoor environmental factors. air-conditioning related equipment; environmental element detection input means to which output signals from an indoor temperature detector, humidity detector, and outdoor outdoor air temperature sensor are supplied; and means for setting the amount of clothing, activity, and air flow rate; , the sum of the outside air temperature detected by the outside air temperature detector and the indoor air detected by the indoor temperature sensor, each multiplied by a weighting coefficient, is defined as the indoor average radiant temperature, and further, from the time when the air conditioning system starts operating, means for determining an average radiant temperature that changes the value of the weighting coefficient between a time period up to a predetermined time period and a time period after the elapse of a predetermined time period; and a detection value of the environmental element detection input means, the amount of clothing and the amount of activity; Comfort degree calculation means for calculating a comfort degree from the set value of the airflow velocity setting means and the output of the average radiant temperature determination means, a predetermined comfort range setting means, and a calculated value from the comfort degree calculation means. In order to ensure that the comfort level falls within the setting range of the comfort level, a setting range of the comfort level is individually established for each air conditioning-related device within that setting range,
operation selection means for determining whether to operate or stop each of the air-conditioning-related devices according to the operating priority of each of the air-conditioning-related devices;
The apparatus is provided with equipment control means for instructing the operation of each of the air conditioning-related equipment based on the determination made by the operation selection means.

[Operation] The means for determining the average radiant temperature in the air conditioning system control device of the present invention calculates the sum of the outside air temperature detected by the environmental element detection input means and the indoor temperature each multiplied by a weighting coefficient to determine the indoor average radiant temperature. Furthermore, the value of the weighting coefficient is changed between the time period from the start of operation of the air conditioning system to a predetermined time period and the time period after the elapse of a predetermined time period, and this average radiant temperature and the indoor temperature from the environmental element detection means are , the comfort level of the room is determined by the comfort calculation means from the detected value of humidity and the set values of the amount of clothing, the amount of activity, and the air flow rate set by the setting means for the amount of clothing, the amount of activity, and the air flow rate, and the degree of comfort is In order for the calculated value to fall within the comfort level setting range set by the comfort range setting means or the comfort range setting changing means, the operation selection means selects the air conditioners, ventilation equipment, etc. installed in the room within the setting range. The comfort level setting range for each air conditioning-related device consisting of two or more of humidifiers, ceiling fans, and floor heaters, that is, the setting upper limit and lower limit of the comfort level are set individually, and the operating priority of each air conditioning device is established. Accordingly, it is determined whether to operate or stop each air-conditioning-related device, and based on this determination, an instruction to operate or stop each air-conditioning-related device is output from the device control means to control each air-conditioning-related device.

[Embodiment] FIG. 1 is a block diagram showing the overall schematic diagram of an air conditioning system control device which is an embodiment of the present invention, and FIG. FIG. 1 is an overall configuration diagram of a system control device.

In the figure, (1) to (5) are air conditioning-related equipment installed in the room (17) to adjust the environmental elements of the room (17), and (1) is an air conditioner with cooling and heating functions; 2)
(17) is a ventilation device with a function to introduce outside air into the room (17), (3) is a humidifier with a humidification function, (4) is a ceiling fan with a function to produce a cooling effect by airflow, (5) is a floor heater with a radiant heating function. (6) is a temperature detector that detects the air temperature in the room (17); (7)
is indoor (17) 2ii! Humidity detector to detect the degree, (
8) is an outside air temperature detector that detects the outside air temperature, and (9) is an indoor temperature and humidity sensor that detects the indoor temperature and humidity based on the output signals from the temperature sensor (6), humidity sensor (7), and outside air temperature sensor (8). , an environmental element detection input means for detecting radiant temperature and outside temperature;
(10) is means for setting the amount of clothing, amount of activity, and airflow velocity of the resident, and (11)
is the average radiant temperature in the room (17), which is the sum of the indoor temperature and the outside air temperature detected by the environmental element detection input means (9), each multiplied by a weighting coefficient, and further, from the time when the air conditioning system starts operating. means for determining an average radiant temperature that changes the value of the weighting coefficient between a time period up to a predetermined time period and a time period after the elapse of a predetermined time;
9), the clothing m, activity m, and airflow speed setting values set by the clothing amount, activity amount, and airflow speed setting means (10), and the average determined by the average radiant temperature determining means (11). (13) is a comfort range setting means for setting a comfort range; (14) is a comfort range setting means (13) for calculating the comfort level of the room (17) from the radiant temperature;
) Comfort range setting changing means for changing the comfort range set by (15) as necessary, and (15) means for setting the comfort range in which the calculated value of the comfort level obtained by the comfort level calculating means (12) is used. (13) Or means for changing the comfort range setting (
14), and within the comfort setting range, the air conditioner (1), ventilation!
Comfort setting range for each air conditioning-related device, i.e. upper limit and lower limit setting for comfort level an operation selection means (1) for determining whether to operate or stop each air-conditioning-related device according to the operating priority of each air-conditioning-related device;
6), the air conditioner (1), ventilation system (2), humidifier (3), ceiling fan (
4) is a device control means that outputs operation or stop instructions to each air conditioning related device of the floor heater (5).

In Figure 2, (17) is a room with the air conditioner (1), ventilation system (2), humidifier (3), and ceiling fan (4) installed on the ceiling (18), and underfloor heating on the floor. A container (5) is installed. (19) and (20) are the intake duct I and the exhaust duct of the ventilation system (2). (21) is indoors (1
7) installed on a wall or the like, means for detecting and inputting the environmental elements (9), means for setting amount of clothing, amount of activity, and air flow velocity (10);
Average width! ) l Temperature determining means (11), comfort level calculating means (12), comfort range setting means (13), comfort range setting changing means (14), operation selection means (15), equipment control means (16) ), and includes a temperature detector (6), a humidity detector (7), an outside temperature detector (8), and a setting change switch (22) for the comfort range setting change means (14). It is. (23) to (27) are installed under the ceiling, etc., and the equipment control means (21) of the control 6D device (21) are
16) Upon receiving the output signal for operation or stop instruction from
The air conditioner (1), the ventilation device (2), the humidifier (3),
A controller such as a relay that controls each air conditioning related device such as a ceiling fan (4) and a floor heater (5), (28) is a controller (23)
) to (27), each air conditioning related equipment (1) to (5)
A power supply that supplies power to the

The comfort level exclusively used by the comfort level calculation means (12) of the control device (21) is determined by the International Organization for Standardization (Inter
national organization for
5 standarddiLion; l5O) international standard l
PM V (Pred
icted Mean Vote).

This comfort level PMV is calculated based on many indoor environmental factors such as room temperature ta, humidity Pa, radiant temperature tv, air velocity Var, clothing 1
It is a function of 1cl, activity IM, etc., and can be determined from these values using the q equation described in 150-7730 above, and is then expressed as a failing thermal sensation scale.

+3...hot, +2...warm, +1...slightly warm 0...neutral -1...slightly cool, -2...cool, -3...
This calculation formula and calculation method are based on the above-mentioned l5O-7730.
This is well known, and since it is not directly related to the gist of the present invention, a detailed description thereof will be omitted.

FIG. 3 is a block diagram showing the hardware configuration of the air conditioning system control I device of the embodiment shown in FIG.

In FIG. 3, (29) is a microcomputer in the control unit (21), which is a CPU of the central processing circuit.
(30), memory (31), timer (32), input circuit (33), and output circuit (34). (35)
(36) is an analog multiplexer (35) into which the detection outputs of the temperature detector (6), humidity detector (7), and outside temperature sensor (8) are input.
This is an A/D converter that converts the output selected by the input circuit into a digital signal, and the output is given to the input circuit (33). The setting change switch (22) may be set to, for example, "cold".
It consists of a switch (22a) and a "hot" J switch (22b), and state signals of the "cold" switch (22a) and "hot" switch (22b) are also given to the input circuit (33). Each of the controllers (23) to (2)
7) is connected to the output circuit (34). Each of the controllers (23) to (27) includes the air conditioner (1),
Air conditioning related equipment such as a ventilation system (2), a humidifier (3), a ceiling fan (4), and a floor heater (5) are connected to each other. The CPU (30) includes a means for setting the amount of clothing, an amount of activity, and an air flow rate (10), a means for determining the average width tA temperature (11), a means for expressing the degree of comfort (12), a means for setting the comfort range ( 13)
, comfort range setting changing means (14), driving selection means (1
5b is programmed to perform functions such as the equipment control means (16).

The air conditioning system control m+ device of this embodiment is constructed as described above, and its operation is controlled by the control 70-- shown in FIG.
The operation selection means for each air-conditioning related equipment of this embodiment shown in FIGS. 5 and 6 are not shown, but will be described in detail using explanatory diagrams.

First, start by turning on the power of the control device (21),
In step S1, initial values such as the items necessary for starting operation and the comfortable range of the comfort level PMV value are set, in step S2 the amount of clothing for the resident is set, in step S3 the amount of activity is set, and in step S4 Set the flow rate (Clothing 1 in Figure 1)
(corresponds to the activity amount and airflow velocity setting means (10)). next,
In step S5, a temperature detector (6), a humidity detector (7)
, the output from the outside air temperature detector (8>) is input to the input circuit (33) via the analog multiplexer (35) and A/D converter (36), so that indoor temperature, humidity, and outside air temperature can be determined. Detection is performed (corresponds to the environmental element detection input means (9) in FIG. 1).

In step S6, the sum of the indoor temperature (17) detected in step S5 and the outside air temperature, each multiplied by a weighting coefficient, is set as the average radiant temperature in the room (17), and further, a predetermined temperature is set from the start of operation of the air conditioning system. The average radiant temperature is determined by changing the value of the weighting coefficient between the time period up to the predetermined time period and the time period after the elapse of a predetermined time period. Below, the average radiant temperature M
The formula for removing RT is shown below.

MRT=axTo +bxTa −・・ ■MRT=
CXTO+dXTa ... ■Here, TO: Outside air 2f1 degrees ['C] Ta: Indoor temperature [''C] a, b, c, d: Weighting coefficients, that is, the time period from the start of operation of the air conditioning system to the predetermined time In this case, the average width 9A temperature MRT is determined by the formula (■), and after a predetermined period of time, the average radiation W degree MRT is determined by the formula (2).For a while after the start of operation, the inner surface temperature of the wall is the same as the outside temperature. Assuming that the influence is large, the value of the weighting coefficient a is made larger than the value of the weighting coefficient C, and the average radiant temperature MR]- is determined.The sum of the coefficients a and coefficients is 1.
0, and the sum of coefficient G and coefficient d is also 1.0.

Next, in step S7, the comfort level PMV value is calculated from the set value in step S2.3.4, the detected value in step S5, and the average radiant temperature determined in step S6 (the comfort level shown in FIG. (corresponds to the antipruritic means (12)). Then, in step S8, it is determined whether the comfort range setting change switch (22) has been operated, and if it has not been operated, step S8 is determined.
In step 10, the PMV value calculated in step S7 is compared with the PMV value setting range of each air conditioning-related device (corresponding to the comfort range setting means (13) in FIG. 1), and the difference in air temperature between indoor and outdoor is compared. Based on the conditions, a decision is made to operate or stop each air-conditioning-related device, as shown in the operation selection means for each air-conditioning-related device in FIG. 5 (corresponding to the operation selection means (15) in FIG. 1).

For example, for cooling during the summer or mid-season, among the air conditioning related equipment with each of the functions mentioned above, an air conditioner with a cooling function (1), a ventilation system with the function of introducing outside air into the room @
(2>, the ceiling fan (4) with the function of producing a cooling effect by airflow is the device to be controlled, and the current comfort level PMV value obtained in step S7 is the PMV specified upper limit of the ceiling fan (4). If the temperature is +0.5 or more and the temperature difference between the indoor and outdoor temperatures is 3° C. or less, it is determined that the Tengetsu fan (4) is turned on.

Due to the cooling effect of the airflow caused by the operation of this ceiling fan (4),
The upper bound of the PMV value can be suppressed. At this time, if the temperature difference between indoor and outdoor is 3° C. or more, it is also determined that the ventilation device (2) is turned on. By operating this ventilation device (2), outside air is introduced and outside air cooling is performed. Then, the cooling load increases, and the PMV value increases by +1.
When it becomes 0 or more, it is decided to turn on the heating and cooling @(1).

When the PMV value decreases due to the operation of the air conditioner (1) and becomes equal to or less than the PMV setting lower limit value of the air conditioner (1), it is first determined to turn off the air conditioner (1). Furthermore, PMV
When the value decreases to below the PMV setting lower limit value of the ceiling fan (4), it is determined to turn off the ceiling fan (4).

In this way, during air conditioning in summer, etc., when the difference between indoor and outdoor temperatures is 3°C or more, it is decided to turn on the ventilation system (2), and actively introduces outside air to perform outside air cooling and reduce the indoor and outdoor temperatures. When the outside temperature is 3° C. or lower, it is first determined to turn on the ceiling fan (4), and then, if necessary, it is determined to turn on the air conditioner (1).

On the other hand, when the PMV value is decreasing, first, it is decided to turn off the air conditioner (1), and then, after that, it is decided to turn off the ceiling fan (4).

For heating in winter, the equipment to be controlled is an air conditioner with a heating function (1), a humidifier with a humidification function (3), and a floor heater (5) with a heating function by radiation.
When the value is less than or equal to the PMV fixed lower limit of 0 for the air conditioner (1), it is determined that the floor heater (5) and the air conditioner (1) are turned on. The PMV value increases and the PMV of the air conditioner (1)
When the set upper limit value -0.5 or higher, first the air conditioner (1
) is decided to turn off, and heating is performed only by radiant heating by the floor heater (5).Furthermore, when the PMV value rises and exceeds the PMV setting upper limit value OJX of the floor heater (5), the floor heater ( 5) is determined to be off. Conversely, from this state, PMV
When the PMV value of the floor heater (5) decreases and becomes equal to or less than the lower limit of the PMV setting of the floor heater (5) - 0.5, it is first decided to turn on the floor heater (5), and then the PMV value decreases and the heating/cooling is switched on. Machine (1)
When the PMV setting lower limit of -1.0 or lower, the air conditioner (
The control is such that 1) is determined to be turned on. Also, PM
If the V value is greater than or equal to the PMV setting lower limit of the air conditioner (1), and the relative humidity is less than or equal to the relative humidity setting lower limit of 30%, in step 311, the humidifier (3) is turned on. is determined, and when the relative humidity reaches the relative humidity set upper limit value of 40% or more, the humidifier (3) is controlled to be turned off.

In this way, when each air conditioning-related device is turned on or off in steps 310 and 311, step 31
In Step 2, the output circuit (34
), an on/off control signal is output to each controller (23) to (27) (device control means (16) in FIG.
). If it is an on signal, the power supply (
Power is supplied from 28). Next, in step 313, the timer (32) repeatedly executes the routine from step S5 to step 312 at regular intervals.

Next, select "Cold" from the comfort range setting change switch (22).
switch (22a) or "hot" switch (22b)
is operated by the resident, it is determined in step S8, and the setting of the comfort range is changed in step S9, and the PMV setting upper limit value and setting lower limit value of the comfort range slide upward or downward, and as a result, , the PMV setting upper limit value and setting lower limit value set for each air conditioning-related device are also slidably changed (corresponding to the comfort range setting changing means (14) in FIG. 1).

Figure 6 shows the PMV setting upper limit 1 and P by operating the "cold" switch (22a) and "mouth" switch (22b).
The operation selection means for each air conditioning-related device is shown by an example of a sliding change of the MV setting lower limit value.

For example, when the resident operates the "cold" switch (22a), the value changes by +0.5 slides in step S9, and when the resident operates the "hot" switch (22b), the value changes by -0, 5 slides. Step 31
By using it at 0, you can turn on/off each air conditioning related equipment.
This is what determines the off state.

In the above explanation, specific air conditioning-related equipment has been explained as an example, but when implementing the present invention, the present invention is not necessarily limited to this, and as long as at least a plurality of equipment is used, similar equipment can be used. can be controlled.

[Effects of the Invention] As described above, according to the air conditioning system control device of the present invention, the sum of the outside air temperature detected by the environmental element detection means and the indoor temperature, each multiplied by a weighting coefficient, is calculated as the average indoor width G1. The average radiant temperature and the indoor temperature from the environmental element detection means are changed by changing the value of the weighting coefficient depending on the time period from the start of operation of the air conditioning system to a predetermined time period and the time period after the elapse of a predetermined time period. , the indoor comfort level is determined by the comfort calculation means from the detected value of humidity and the set values of the amount of clothing, the amount of activity, and the air flow rate set by the setting means for the amount of clothing, the amount of activity, and the air flow rate; In order for the calculated value to fall within the comfort setting range set by the comfort range setting means or the comfort range setting change means, the operation selection means selects the air conditioner, ventilation system, and humidifier installed in the room within the set range. A comfort level setting range is set individually for each air-conditioning-related device consisting of two or more of air-conditioning devices, ceiling fans, and floor heaters, and operation or stopping of each air-conditioning-related device is determined according to the operating priority of each air-conditioning device. Based on this determination, the equipment control means outputs an instruction to start or stop each air conditioning equipment, thereby controlling each air conditioning equipment.

Therefore, the average radiant temperature is determined as the sum of the outside air temperature and the indoor air temperature multiplied by the weighting coefficient.
Differences in the structure of the room, differences in the indoor distribution of the radiant 9A temperature, and differences in the detected value of the radiant temperature due to the orientation and installation position of the detector can be accommodated by multiplying by weighting coefficients, without using expensive detectors. Radiation@temperature can be detected and each air conditioner can be controlled.

[Brief explanation of the drawing]

FIG. 1 is a block diagram (not showing the overall schematic configuration diagram) of an air conditioning system control device that is an embodiment of the present invention, and FIG.
An overall configuration diagram of the air conditioning system control device of the embodiment shown in the figure,
FIG. 3 is a block circuit diagram showing the hardware configuration of the air conditioning system control device of the embodiment shown in FIG. 7, and FIG.
The control flowchart of the air conditioning system control device of the embodiment shown in the figure, and FIGS. 5 and 6 are explanatory diagrams showing operation selection means for each air conditioning related device of the embodiment shown in FIG. 1. In the figure, 1: air conditioner, 2: ventilation system, 3: humidifier,
4: Ceiling fan, 5: Floor heater, 6: Temperature detector, 7: Humidity detector, 8: Outside temperature detector, 9: Detection means for environmental elements, 10: Setting of clothing m, activity m, and air flow velocity Means, 11: Average radiant temperature determination means, 12: Comfort degree calculation means, 13: Comfort range setting means, 14: Comfort range setting change means, 15: Operation selection means, 16:! j! Instrument '611 means,
It is. Incidentally, in the drawings, same-symbols red and same-symbols 2 indicate the same or equivalent parts. Agent: Patent attorney Masuo Ohatsu, and 2 other procedural amendments (voluntary)

Claims (1)

[Claims] Air conditioners and heaters installed indoors to adjust indoor environmental factors;
Detection of environmental elements to which output signals are supplied from air-conditioning equipment consisting of two or more of ventilators, humidifiers, ceiling fans, and floor heaters, as well as indoor temperature detectors, humidity detectors, and outdoor outdoor air temperature detectors. an input means, a means for setting the amount of clothing, an amount of activity, and an air flow velocity; and a sum of the outside air temperature detected by the outside air temperature detector and the indoor air detected by the indoor temperature sensor, each multiplied by a weighting coefficient. an average radiant temperature in the room, and an average radiant temperature determining means that changes the value of the weighting coefficient between a time period from the start of operation of the air conditioning system to a predetermined time period and a time period after the elapse of a predetermined time period; a comfort degree calculating means for calculating a comfort degree from the detected value of the detection input means, the setting values of the clothing amount, the active mass, and the air flow velocity setting means, and the output of the average radiant temperature determining means; In order to set the calculated value from the setting means and the comfort degree calculation means within the setting range of the comfort degree, a setting range of the comfort degree for each air conditioning related device is individually provided within the setting range, and each of the air conditioning related devices is set individually. The air conditioning equipment may include an operation selection means for determining whether to operate or stop each of the air conditioning-related equipment according to the operation priority order of each equipment, and an equipment control means for instructing the operation of each of the air-conditioning equipment based on the determination by the operation selection means. Characteristic air conditioning system control device.