JP2556884B2 - Air conditioning system controller - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air conditioning system control device that automatically controls an indoor environment so that it is comfortable for a resident.

[Prior Art] Conventionally, in order to obtain a comfortable environment for indoor occupants, a method of detecting a room temperature with a detector provided in an air conditioner and controlling the temperature (Japanese Patent Laid-Open No. 58-26946) (hereinafter, Simply referred to as “first conventional example”), a method of detecting temperature and humidity with a detector and controlling temperature and humidity (Japanese Patent Laid-Open No. 57-127739) (hereinafter, referred to as “JP-A-57-127739”).
Simply referred to as "second conventional example"), a method of detecting room temperature and radiation by a detector to control temperature (Japanese Patent Laid-Open No. 58-7901) (hereinafter simply referred to as "third conventional example"). And a method of controlling temperature by detecting radiation and convection (JP-A-56-2094).
No. 8) (hereinafter, simply referred to as "fourth conventional example"). In each of the above methods, about two types of environmental elements are handled as environmental elements.

Further, when considering a comfortable environment for indoor occupants, a method of controlling an environmental control device in order to make it within a comfortable range, assuming that air temperature, humidity, radiant temperature, air velocity and air pollution are listed as environmental elements JP-A-61-29638) (hereinafter, simply referred to as "fifth conventional example") has been proposed.

[Problems to be Solved by the Invention] In the first to fourth conventional examples described above, only temperature control or wet temperature control according to a set value is performed in order to obtain a comfortable environment, and control of two types of environmental elements is performed. There was a technical limit to obtaining a sufficient comfortable environment.

Further, in detail, in the fifth conventional example, an environment detector that measures a plurality of environment elements and outputs a signal according to each environment state, a computing unit, and a plurality of environment conditions that change the environment state in the room An environment control device having a function is provided, and a comfort level of the indoor environment is calculated by a computing unit from a plurality of output signals from the environment detector, and whether or not the calculated comfort level is within a predetermined range, By determining which environmental condition should be changed to enter the range and controlling the environmental control device according to the determination result, it is possible to obtain a comfortable environment among multiple functions of the environmental control device. It automatically selects the best function and provides a comfortable environment without any troublesome settings. However, in the above-mentioned fifth conventional example, it is difficult to change the set value for responding to individual differences among residents and distribution of environmental elements in the room. Only the means is described, and the specific control method of each information-related device that is originally a problem is not shown. Further, it is necessary to perform a troublesome operation of setting the control condition of each air conditioning related device for each device.

Therefore, the present invention provides a setting range of the comfort level for each air conditioner so as to achieve the most energy-saving operation, and newly sets a setting operation corresponding to the individual difference of occupants and the distribution of environmental elements in the room. It is an object to provide an air conditioning system control device that can obtain a comfortable environment without performing the above.

[Means for Solving the Problems] An air conditioning system control device according to the present invention is installed in a room and adjusts environmental elements in the room.
Environmental elements that are supplied with output signals from air-conditioning related equipment consisting of two or more humidifiers, ceiling fans, floor heaters, indoor temperature detectors, humidity detectors, radiant temperature detectors, and outdoor outdoor temperature detectors. Of the clothing amount, the activity amount and the air flow rate, the comfort level is calculated from the detection values of the environmental element detection input means, the clothing amount, the activity amount and the air flow rate setting means. A comfort level calculation means, a comfort range setting means, and a comfort range changing means for changing the comfort range set by the comfort range setting means as necessary,
In order for the calculated value from the comfort level calculation means to fall within the comfort level setting range, a comfort level setting range is individually set for each air conditioning related device within the setting range, and as a result, each air conditioning related device is set. The operation selecting means for deciding whether to operate or stop each of the air conditioning-related equipment in accordance with the operation priority order, and the equipment control means for giving an operation instruction to each of the air conditioning-related equipment according to the decision of the operation selecting means.

[Operation] The air-conditioning system control device of the present invention sets the detection value from the detection means for detecting environmental elements such as indoor temperature, humidity, radiant temperature, and outdoor outdoor temperature, clothing amount, activity amount, and air flow velocity. The indoor comfort level is calculated by the comfort level calculation means from the set value by the means, and the calculated value of the comfort level is set as the comfort level setting range by the comfort range setting means. Setting range of comfort level for each air-conditioning related equipment consisting of two or more of air conditioner, ventilation device, humidifier, ceiling fan, floor heater installed in the room, that is, upper limit value and lower limit value of comfort level Values are set individually, and as a result, the operating priority of each air conditioning related device is selected to decide whether to operate or stop each air conditioning related device. Based on this decision, the device control means operates or stops each air conditioning related device. Output the instruction, and It controls the equipment related to air conditioning.

[Embodiment] FIG. 1 is a block diagram showing an overall schematic configuration diagram of an air conditioning system control device according to an embodiment of the present invention, and FIG. 2 is an air conditioning system of an embodiment of the present invention shown in FIG. It is a whole block diagram of a control apparatus.

In the figure, (1) to (5) are air-conditioning-related devices installed in a room (17) to adjust environmental elements in the room (17), and (1) is a cooling / heating machine having a cooling / heating function, ( 2)
Is a ventilation device with the function of introducing outside air into the room (17),
(3) is a humidifier having a humidifying function, (4) is a ceiling fan having a function of producing a cooling effect by airflow, and (5) is a floor heater having a heating function by radiation. (6) is a temperature detector for detecting the air temperature in the room (17), (7) is a humidity detector for detecting the humidity in the room (17), and (8) is radiation for detecting the radiation temperature in the room (17). Temperature detector, (9) outside air temperature detector for detecting the temperature of outside air, (10) above temperature detector (6), humidity detector (7), radiation temperature detector (8), outside air temperature detector Environmental element detection and input means for detecting indoor temperature, humidity, radiant temperature and outside air temperature based on the output signal from (9), and (11) clothing for setting occupant's clothing amount and activity amount and indoor air velocity. Amount, activity amount, and air flow velocity setting means, (12) is based on the detected values from the environmental element detection input means (10) and the set values by the clothing amount, activity amount, and air flow velocity setting means (11) Comfort calculation means for calculating the comfort level, (13) comfort range setting means for setting the comfort range, (14) front Comfort range setting changing means for changing the comfort range set by the comfort range setting means (13) as necessary, (15) is a comfort value calculated by the comfort level calculating means (12) Is set to the setting range set by the comfort range setting means (13) or the comfort range setting changing means (14). Within the comfort setting range, the air conditioner (1) and the ventilation device ( 2), a humidifier (3), a ceiling fan (4), a floor heater (5), a comfortable comfort setting range, that is, a comfortable comfort setting upper limit value and a comfortable lower limit value are individually provided. As a result, operation selecting means for deciding whether to operate or stop each air conditioning related equipment according to the operation priority of each air conditioning related equipment, (16) is the air conditioner (1) determined by the operation selecting means (15). , Ventilation (2), humidifier (3), ceiling fan (4), floor heater 5)
Is a device control means for outputting an operation or stop instruction to each of the air conditioning related devices.

In FIG. 2, (17) is indoors, and the air conditioner (1), the ventilation device (2), the humidifier (3), and the ceiling fan (4) are installed on the ceiling (18), and the floor heating is provided on the floor. A vessel (5) is installed. (19) and (20) are an intake duct and an exhaust duct of the ventilation device (2). (21) is installed on the wall surface of the room (17), etc., the detection input means (10) for the environmental elements, the setting means (11) for the clothing amount, the activity amount and the air flow velocity, the comfort degree calculating means (12), A comfortable range setting means (13), a comfortable range setting changing means (14), an operation selecting means (15), a device control means (16) are built in, and the temperature detector (6) and the humidity detector (7) are included. , Radiation temperature detector (8), outside air temperature detector (9)
And a control device including the setting change switch (22) of the comfort range setting change means (14).

(23) to (27) are installed on the ceiling or the like, and receive the output signal of the operation or stop instruction from the device control means (16) of the control device (21), and then the air conditioner (1) and the ventilation device. (2), humidifier (3), ceiling fan (4), floor heater (5)
Controllers such as relays for controlling each air-conditioning related equipment, (28)
Is a power source for supplying electric power to the air conditioning-related devices (1) to (5) through the controllers (23) to (27).

The comfort level calculated by the comfort level calculation means (12) of the control device (21) is the International Standardization Organization (Internationa Organization).
l Organization for Standardization (ISO) international standard
PMV (Predicted Mean Vot) described in ISO-7730
Use what is called e).

This comfort level PMV is due to room temperature t, which is one of the many environmental factors in the room.
a, humidity Pa, radiation temperature tr, air flow velocity Var, clothing amount Icl, activity amount M, etc., and from these values, the above ISO-7730
The thermal sensation scale is as follows.

+3 ... Hot, +2 ... Warm, +1 ... A little warm 0 ... Neither -1 ... A little cool, -2 ... Cool, -3 ... Cold This formula and calculation method are well known from the ISO-7730, Since it is not directly related to the gist of the invention, its detailed description is omitted.

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

In FIG. 3, (29) is a microcomputer in the control device (21), which includes a central processing unit CPU (30), memory (31), timer (32), input circuit (33), output circuit (34). )have. (35) is an analog multiplexer to which the detection outputs of the temperature detector (6), the humidity detector (7), the radiation temperature detector (8), and the outside air temperature detector (9) are input, and (36) is the An A / D converter that converts the output into a digital signal, the output of which is given to the input circuit (33). The setting change switch (22) is, for example,
It is composed of a "cold" switch (22a) and a "hot" switch (22b), and the status signals of the "cold" switch (22a) and the "hot" switch (22b) are also given to the input circuit (33). To be The controllers (23) to (27) are connected to the output circuit (34). Each of these controllers (2
3) to (27) include the air conditioner (1), the ventilation device (2), the humidifier (3), the ceiling fan (4), and the floor heater (5).
The respective air-conditioning related devices are connected. The CPU (3
In 0), each of the above means, that is, setting means (11) for the amount of clothing, the amount of activity, and the air flow velocity, a calculating means (12) for the comfort level, a setting means (13) for the comfortable range, and a setting changing means for the comfortable range. (14), operation selection means (15), device control means (16), etc. are programmed to execute the functions.

The air-conditioning system control device of this embodiment is configured as described above, and the operation thereof will be described in the control flow chart of FIG. 4 and the operation selecting means of each air-conditioning related device of this embodiment of FIG. 5 and FIG. This will be described in detail with reference to the explanatory diagram shown.

First, start by turning on the power of the control device (21),
In step S1, items necessary for starting operation and initial values such as comfort range of comfort PWV value are set, in step S2 the amount of clothing of the resident is set, in step S3, the amount of activity is set, and step S4
The indoor air flow velocity is set by (corresponding to the clothing amount, activity amount, and air flow velocity setting means (11) in FIG. 1). Then, step S5
Then, the outputs from the temperature detector (6), the humidity detector (7), the radiation temperature detector (8), and the outside air temperature detector (9) output the analog multiplexer (35) and the A / D converter (36). The temperature, humidity, radiation temperature, and outside air temperature are detected by being input to the input circuit (33) via the input circuit (corresponding to the environmental element detection input means (10) in FIG. 1). In step S6, a comfort level PMV value is calculated from the set values in steps S2, 3, and 4 and the detected value in step S5 (corresponding to the comfort level calculating means (12) in FIG. 1).

Next, in step S7, set the comfortable range setting switch (2
If it is not operated, it is determined in step S9 that the PMV value calculated in step S6 and the PMV value setting range of each air-conditioning related device (comfort range setting means (13) in FIG. 1). (Corresponding to the operation selection means (15) in FIG. 1) according to the condition of the indoor / outdoor air temperature difference. The decision to operate or stop each air conditioning related device is made.

For example, for cooling in the summer or in the middle of the period, among the air conditioning-related devices having the above-mentioned functions, a cooling / heating machine (1) having a cooling function, and a ventilation device (2) having a function of introducing outside air into the room. , The ceiling fan (4) having the function of producing the cooling effect by the air flow is set as the control target device, and the current comfort level PMV value obtained in step S6 is the PMV setting upper limit value +0.5 or more of the ceiling fan (4). If the indoor / outdoor temperature difference is 3 ° C. or less, the ceiling fan (4) is determined to be turned on. Due to the cooling effect of the air flow by the operation of the ceiling fan (4), the increase in PMV value can be suppressed. At this time, if the indoor / outdoor temperature difference is 3 ° C. or more, the ventilation device (2) is also turned on. By operating the ventilation device (2), outside air is introduced to cool the outside air. When the cooling load increases and the PMV value becomes equal to or higher than the PMV setting upper limit value of the air conditioner (1) +1.0, the air conditioner (1) is turned on.

When the PMV value decreases due to the operation of the air conditioner (1) and becomes equal to or lower than the PMV setting lower limit value +0.5 of the air conditioner (1), first, the air conditioner (1) is determined to be off. Further, when the PMV value decreases and becomes equal to or lower than the PMV setting lower limit value 0 of the ceiling fan (4), it is determined that the ceiling fan (4) is off.

As described above, in the cooling such as in the summer, when the indoor / outdoor temperature difference is 3 ° C. or more, the ventilation device (2) is also turned on, and the outdoor air is actively introduced to perform the outdoor air cooling to cool the indoor / outdoor temperature. When the difference is 3 ° C. or less, the ceiling fan (4) is first turned on, and then the air conditioner (1) is turned on if necessary. On the contrary, when the PMV value is decreasing, the cooling / heating machine (1) is first turned off, and then the ceiling fan (4) is turned off.

For heating in the winter season, the air conditioner (1) having a heating function, the humidifier (3) having a humidifying function, and the floor heater (5) having a heating function by radiation are controlled devices, for example, PMV.
When the value is less than or equal to the PMV setting lower limit value-1.0 of the air conditioner (1), the floor heater (5) and the air conditioner (1) are turned on. When the PMV value rises and becomes equal to or higher than the PMV setting upper limit value -0.5 of the air conditioner (1), first, the air conditioner (1) is determined to be off, and heating is only radiant heating by the floor heater (5), Further, when the PMV value rises and becomes equal to or higher than the PMV setting upper limit value 0 of the floor heater (5), it is determined that the floor heater (5) is off. On the contrary, when the PMV value falls from this state and becomes below the PMV setting lower limit value -0.5 of the floor heater (5), first, it is decided to turn on the floor heater (5), and the PMV value further falls. Then, when the PMV setting lower limit value of the air conditioner (1) becomes equal to or lower than -1.0, the control is such that the air conditioner (1) is turned on. Also, the PMV value is the lower limit value of the PMV setting of the air conditioner (1) −1.
If it is 0 or more and the relative humidity is 30% or less of the relative humidity setting lower limit value, it is determined in step S10 that the humidifier (3) is turned on, and if the relative humidity is 40% or more of the relative humidity setting upper limit value, The control is such that the humidifier (3) is turned off.

In this way, when the ON / OFF decision of each air conditioning related device is made in step S9 and step S10, in step S11, based on the ON / OFF decision of each air conditioning related device in step S9 and step S10, the output circuit ( An on / off control signal is output to each of the controllers (23) to (27) via 34) (corresponding to the device control means (16) in FIG. 1). Then, if it is an ON signal, through the corresponding controllers (23) to (27),
Electric power is supplied from the power supply (28) to each air conditioning-related device. Next, in step S12, the timer (32) repeatedly executes the routine of steps S5 to S11 at regular intervals.

Next, set the comfort range setting switch (22) to "Cold"
When the switch (22a) or "hot" switch (22b) is operated by the resident, the comfort range setting is changed in step S8, and the comfort range PMV setting upper limit value and setting lower limit value slide up or down. As a result, the PMV set upper limit value and the set lower limit value set for each air conditioning-related device also slide similarly (corresponding to the comfortable range setting changing means (14) in FIG. 1).

FIG. 6 shows the operation selecting means of each air conditioning related device by an example of slide change of the PMV set upper limit value and the PMV set lower limit value by operating the "cold" switch (22a) and "hot" switch (22b). For example, when the resident operates the "cold" switch (22a), the value changes by +0.5 slides in step S8, and when the "hot" switch (22b) operates, the value changes by -0.5 slides. By changing to, and using it in step S9, the on / off of each air conditioning-related device is determined.

In the above description, a specific air conditioning-related device has been described as an example, but the present invention is not limited to this, and similar control is performed as long as it has the same function. be able to.

[Advantages of the Invention] As described above, according to the air conditioning system control device of the present invention, the detection value from the detection input unit that detects the environmental element including the indoor temperature, the humidity, the radiation temperature, and the outdoor outdoor temperature, The indoor comfort level is calculated by the comfort level calculation unit from the clothing amount, the activity level, and the set value by the air flow velocity setting unit, and the calculated comfort level is set as the comfort level setting range by the comfort range setting unit. Therefore, in the operation selection means, installed in the room within the setting range, the air conditioner, the ventilation device, the humidifier,
A ceiling fan and a floor heater, each of which has two or more air-conditioning related equipment, has its own comfort level setting range. As a result, it is decided to operate or stop each air-conditioning equipment according to the operation priority of each air-conditioning equipment. Then, based on this determination, the device control means outputs an operation or stop instruction of each air conditioning related device to control the air conditioning related device.

Therefore, by detecting or setting multiple environmental factors in the room and comparing the comfort level calculated from these environmental factors with the comfort level setting range individually set for each air conditioner, operation or stop of each air conditioner is performed. As a result, the air conditioners can be selected according to the operation priority of each air conditioner, and the indoor comfort level can be maintained in an energy-saving manner. Therefore, there is an effect that a troublesome setting operation of changing the setting range of the comfort level for each air conditioner becomes unnecessary.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall schematic configuration of an air conditioning system control device according to an embodiment of the present invention, and FIG.
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 controller of the embodiment shown in FIG. 1, and FIG.
FIG. 5 and FIG. 6 are control flowcharts of the air-conditioning system control device of the embodiment shown in the drawings, and are explanatory views showing the operation selecting means of each air-conditioning related device of the embodiment shown in FIG. In the figure, 1: Air conditioner, 2: Ventilator, 3: Humidifier, 4: Ceiling fan, 5: Floor heater, 6: Temperature detector, 7: Humidity detector, 8: Radiation temperature detector, 9: Outdoor air temperature detector, 10: Environmental element detection input means, 11: Clothing amount, activity amount and air flow velocity setting means, 12: Comfort degree calculation means, 13: Comfort range setting means, 14: Comfort range setting Change means, 15: operation selection means, 16: equipment control means. In the drawings, the same reference numerals and the same symbols indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Igarashi, 2-14-40 Ofuna, Kamakura-shi, Kanagawa Sanryo Electric Co., Ltd. Product Research Laboratory (72) Masaki Komatsu 2--1440, Ofuna, Kamakura-shi, Kanagawa No. Sanryo Electric Co., Ltd. Product Research Institute (72) Inventor Toyohiro Kobayashi 3-18-1 Oshika, Shizuoka-shi, Shizuoka Prefecture Mitsubishi Electric Corporation Shizuoka Works (72) Inventor Masamitsu Kawashima 3-18-18 Oka, Shizuoka-shi, Shizuoka Prefecture No. 1 Mitsubishi Electric Co., Ltd. Shizuoka Factory

Claims (1)

(57) [Claims] 1. An air conditioner-related device comprising two or more of an air conditioner, a ventilation device, a humidifier, a ceiling fan, and a floor heater, which are installed in a room to adjust environmental elements in the room, and an indoor temperature detector,
Humidity detector, radiation temperature detector, environmental element detection input means to which output signals of the outdoor air temperature detector are supplied, clothing amount, activity amount and air flow velocity setting means, and environmental element detection input means Comfort value calculating means for calculating the comfort level from the detected values of the clothing amount, the activity amount, and the air flow velocity setting means, the predetermined comfort range setting means, and the comfort range setting as necessary. The comfort range changing means for changing the comfort range set by the means, and the calculated value from the comfort level calculating means should be within the setting range of the comfort level for each air conditioning related device within the setting range. An operation selecting unit that individually sets a setting range of the comfort level, and consequently determines whether to operate or stop each device according to the operation priority of each device,
An air-conditioning system control device comprising: a device control unit that gives an operation instruction to each of the devices according to the determination of the operation selection unit.