JPS6050330A - Air conditioning system - Google Patents

Abstract

PURPOSE:To enable an air conditioning operation to be performed with a higher efficiency of energy as compared with that of a separate control over a cooling and heating device, humidifying unit and dehumidifying unit by a method wherein a temperature and a humidity are simultaneously measured and the cooling and heating device for the air conditioning equipment, humidifying unit and dehumidifying unit are integrally controlled in response to the condition of the temperature and the humidity. CONSTITUTION:A temperature sensor 1 measures a temperature in the interior of a room and a humidity sensor 2 measures a humidity. A scanner 3 scans the temperature sensor 1 and the humidity sensor 2. As shown in the air conditioning control graph for the temperature and humidity controller 13, the air conditioner equipment 4 is controlled to perform the most suitable and efficient air conditioning control in response to the conditions ( I ) to (VIII) of the suitable temperature and suitable humidity shown by the shaded part which is divided in response to the interior temperature and the humidity measured by a temperature sensor 1 and a humidity sensor 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Problem Field] The present invention relates to an air conditioning control system for air conditioning equipment comprising a heating and cooling device, a dehumidifier, and a humidifier.

(Prior Art) Conventionally, in air conditioning equipment installed in offices, factories, etc., which includes a cooling device, a heating device, a dehumidifier, and a humidifier, temperature and humidity can be adjusted separately by controlling each of them separately. It was maintained at an appropriate temperature and humidity.However,
Since the heating and cooling equipment is operated only depending on the temperature state, and the dehumidifier and humidifier are operated only depending on the humidity state, energy-efficient air conditioning control cannot be performed and there is a drawback that power consumption is wasted.

For example, the humidity R is expressed as R=-base-×100 e: current water vapor pressure E: saturated water vapor pressure, and the saturated water vapor pressure l increases as the temperature rises. Therefore, if the humidity is high and the temperature is low, optimization can be achieved by simply lowering the temperature (warming) without dehumidification. Dehumidification and heating were performed separately by operating two units, a heating unit and a heating unit, which was inefficient.

[Object 0] The present invention has been made in view of the conventional problems as described above, and its purpose is to organically combine and integrate a heating and cooling device, a dehumidifier, and a humidifier of an air conditioner. The purpose of this invention is to propose an air conditioning control system that achieves air conditioning control with high energy efficiency and low power consumption by performing control.

(to) 还佳σ〕 Hereinafter, the present invention will be described in detail with reference to the drawings showing a preferred embodiment.

In FIG. 1, which is a schematic diagram of the entire air conditioning control system according to an embodiment of the present invention, 1 is a temperature sensor such as a resistance thermometer that measures indoor temperature, and 2 is a humidity sensor that measures humidity. . Here, as for the hygrometer 2, according to the principle of a wet and dry bulb thermometer, one junction of the thermocouple is kept in the atmosphere and the other at the temperature of the wet bulb, and the thermoelectromotive force due to the temperature difference is reduced to 4111.
A hygrometer, etc., is used to read the humidity directly using a special scale. 3 are scanners for the temperature sensor 1 and humidity sensor 2, respectively. 4 is an air conditioner A, which includes a dehumidifier 5 and a dehumidification control device 6, a humidifier 7 and a humidification control device 8, a cooling device 9 and a cooling control device 10. The system is equipped with a heating device and a heating control device 12. 6.1 is a controller for the entire system, and 1 is a controller operation device consisting of a CRT and a keyboard.

Next, a schematic configuration of the controller 13 is shown in the block diagram of FIG. 15 is a CPU that manages the entire controller;
16 is a nonvolatile RAM that saves the temperature and humidity values set from the controller operation product 14; 17 is an input port that receives input from each scanner 3; and 18 is a start/stop signal for each control device. 19 is a RAM used as a work area by the CPU 15, 20 is a ROM that stores a control program for the CPU 15, and 21 is an interface for a controller operation device. This controller 13 can be realized by a simple device such as a one-board CPU.

With the above configuration, in the air conditioning control system according to this embodiment, the indoor temperature measured by the temperature sensor and the humidity sensor 2 is as shown in FIG. In addition to the state of appropriate temperature and humidity indicated by the single line divided according to temperature and humidity (I
) to (v m), the air conditioning equipment 4 is controlled to perform the most appropriate and efficient air conditioning control.

Next, the control operation of the system will be explained according to the schematic flow of the control program shown in FIG.

As a prerequisite, an upper limit value for the appropriate temperature and a lower limit value for the appropriate humidity are set from the controller operation device. These setting values are backed up by a battery so that they do not disappear even when the power is turned off, and are saved in a non-volatile memory 16 such as RAM or bubble memory.

In Europe, the control program is activated periodically (for example, every minute) by a clock. The control program is CLO
When started from CK, temperature reduction request FLAG, heating request F
FLAG, dehumidification request FLAG, humidification request FLAG
Clear AG (step si).

Now, the current □llA degree in the room is read by the scanner 3 and compared with L and the determined upper and lower limits of the appropriate temperature A11 (step 52). Then, when the temperature is higher than the upper limit value, the temperature reduction request FLAG is set (step S3), and when it is lower than the do limit I1 white, the heating request FLAG is set (step S34). Next, read the humidity using scanner 3,
It is compared with the lower limit value of "appropriate humidity" (step S5). At this time, the humidity is lower than the L limit fm and the heating request FLAG
If it is not set, set the dehumidification request FLAG (Step 36, S7), and if the humidity is lower than the limit value and the temperature request FLAG is not set, then the humidification request F
LAG is set (steps S8 and S9:).

Depending on the treatment to the north, the state of warm melon and humidity in the room 757, the state of appropriate temperature and humidity shown in Figure 3, or the state of (1) to (VIII)! This determines which state the tiger is in.

Next, compare the FLAG you saved last time with the current FLAG, and check the indoor temperature and humidity. It is determined whether the tiger has changed (step 5io).

If the status has not changed, it will affect the current FIIll uU disconnection operation. Then, when the state changes, the following processing is performed.

First, it is checked whether the temperature reduction request FLAG is set (step 511). If set, step 312) determines whether the cooling device 9 is in operation;
If it is not in operation, start the cooling control device 110 (step 513), -1! If not, it is determined in step 514 whether or not the cooling N device 9 is in operation, and if it is in operation, the cooling control device 10 is stopped (step 514).
5) Next, check whether the heating request FLAG is set (step 316). If it is set, it is determined whether the heating device 11 is in operation in step 317, and if it is not in operation, the heating control device 12 is activated (step 518).If it is not set, in step 519, the heating device 11 is activated. is in operation, and if it is in operation, the heating control device 12 is stopped (step 32
0).

Next, it is checked whether the dehumidification request FLAG is set (step 521). If it is set, it is determined in step 322 whether or not the dehumidifier is in operation, and if it is not in operation, the dehumidification control device 6 is activated. (step 523)
,, If it is not set, it is determined in step 524 whether the dehumidifier 5 is in operation, and if it is in operation, the dehumidification control device 6 is
(step 325), and also humidification request FLA
Check whether G is set (step 52
6). If set, the humidifier 7 is set in step S27.
If it is not in operation, the humidification control device 8 is activated (step 528j, if it is not set).

In step 29, it is determined whether the humidifier 7 is in operation, and if it is in operation, the humidification control device 8 is stopped (step S'30').
.

Finally, each FLAG mentioned above is saved for the next control (step 31), and the control operation is ended.

By controlling the air conditioning equipment as described above, the room is always maintained at an appropriate temperature and humidity. In the past, for example, in the state (I) or (VII) shown in FIG. 3, a state of appropriate temperature and humidity was achieved by heating and dehumidifying or decreasing temperature and humidifying, but the control of this embodiment The system automatically determines the state of (I) or (Vl) and only performs heating or dehumidification, respectively, based on the relationship between temperature and humidity described above, to achieve a state of appropriate temperature and humidity, which is extremely efficient. Good air conditioning control is possible.

〔effect〕

As described above, according to the present invention, temperature and humidity are measured simultaneously and the heating and cooling device, humidifier, and dehumidifier of the air conditioner are integrally controlled according to the state consisting of the temperature and humidity.
Compared to controlling these devices separately, it is possible to perform air conditioning with high energy efficiency, and power consumption can also be kept low.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of the entire air conditioning control system according to an embodiment of the present invention, Fig. 2 is a block diagram showing the schematic configuration of the controller of the air conditioning control system shown in Fig. 1, and Fig. 3 is a schematic diagram of the air conditioning control system. A relationship diagram showing control operations for temperature and humidity. FIGS. 4(A), 4(B), and 4(C) are flowcharts of the control operation of the system. Here, l... thermometer, 2... hygrometer, 3... scanner, 4... air conditioner, 5... dehumidifier, 6...
Dehumidification control device, 7... Humidifier, 8... Humidification control device, 9... Cooling device, 10... Cooling control device, 11.
...Heating device, 12...Heating control device, 13...Controller, 14...Controller operating device, 15...CPU, 1B...Non-volatile RAM, 17...For input Port, 18... Output boat, 19... RAM, 20... ROM, 2
1... Interface.

Claims (1)

[Claims] It includes a sensor that measures temperature and humidity, an air conditioning device that includes a heating and cooling device, a humidifier, and a dehumidifier, and a control unit that integrally controls the air conditioning device according to the temperature and humidity conditions measured by the sensor. An air conditioning control system characterized by: