JP4267380B2 - Control device and control program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner control device and a control program that realize energy saving by being applied to an existing air conditioning system.
[0002]
[Prior art]
In air conditioning control, it is required to secure an appropriate indoor thermal environment with as little energy consumption as possible, and as such, it is possible to learn a comfort index adapted to the actual human sense, and the comfort index There is an air conditioning control device that can maintain the control amount set value of the air conditioner within the comfort range (for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent No. 3049266 [0004]
[Problems to be solved by the invention]
By the way, when performing humidity control in a general air conditioner, for example, a four-pipe type air conditioner, a humidifying operation is performed if the current humidity in the room space is low relative to the humidity setting value, and a dehumidifying reheat operation (air conditioning is performed if the humidity is high Air is once supercooled in the machine, dehumidified and then heated again to the specified temperature). Of these, dehumidifying and reheating operation takes a lot of energy in both cooling and reheating. It is known to consume.
[0005]
On the other hand, the period for performing the dehumidifying operation is from the rainy season to the summer, and since the cooling load is originally high during this period, the dehumidifying reheating operation may not be performed because the dehumidifying operation can be performed to some extent with cooling.
[0006]
However, the humidity in the living room space tends to fluctuate constantly due to cooling operation or air circulation with the outside. If the current humidity and the set value are the same, humidification operation and dehumidification reheating operation are not performed. However, in general air conditioners, there is only one humidity set value in the living room space. By detecting a slight difference, the air conditioner performs a humidifying operation or a dehumidifying reheating operation. Therefore, even when the humidification / dehumidification operation is not particularly required, the operation is performed and wasteful energy is consumed. In particular, a large amount of energy was wasted in the dehumidifying and reheating operation.
[0007]
Moreover, in order not to perform the operation control that consumes such wasteful energy, it is necessary to change the control program and control device of the air conditioner, but the change requires a great deal of cost. It was.
[0008]
In view of the above circumstances, an object of the present invention is to provide a control device and a control program that can realize an energy-saving operation at low cost while utilizing an existing control system for an air conditioner.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the control device according to the first aspect of the present invention is connected to an air conditioner that performs dehumidification by dehumidification reheating operation in which air to be air-conditioned is supercooled and then heated to a predetermined temperature. A control device connected to a controller for storing a humidity setting value for outputting a control signal for controlling the dehumidifying and reheating operation of the air conditioner, and outputting the control signal to the air conditioner in accordance with the humidity setting value. The current humidity value in the room space is obtained, and when the current humidity value in the room space is higher than the humidity setting value but does not require dehumidification, the current humidity value is the co a set value generator, the humidity set value generated by the setting value generating means but which generates a humidity setting value as a chance for outputting a control signal for stopping the dehumidifying reheat operation of the air conditioner Characterized in that it comprises a sending means for sending relative controller.
[0012]
According to the invention of claim 1 , by setting the current humidity value in the living room space to the humidity setting value, it is possible to stop the dehumidifying and reheating operation that consumes a lot of energy, and to realize energy saving.
In addition, it is possible to construct an air conditioning system that realizes energy saving at low cost without changing the control logic of an existing controller.
[0015]
Further, the invention is a control apparatus according to claim 2, the air conditioner is connected to perform dehumidification by the dehumidifying reheat operation for heating the air of the air conditioning control target to a predetermined temperature after the supercooled, dehumidification of the air conditioner storing the humidity set value that trigger which outputs a control signal for controlling the reheating operation, supply and controller for outputting a control signal according to the humidity set value to the air conditioner, the input the humidity set value to the controller A control device connected to an air conditioning system including a monitoring device to obtain a current humidity value in the living room space, and the current humidity value in the living room space is higher than the humidity set value, but dehumidifying If that does not require, the value of the current humidity setting value generation hands said controller generates a humidity setting value as a chance for outputting a control signal for stopping the dehumidifying reheat operation of the air conditioner When, characterized in that it comprises a sending means for sending the humidity set value generated by the setting value generating means with respect to said monitoring device.
[0016]
According to the invention of claim 2 , by setting the current humidity value in the living room space to the humidity setting value, it is possible to stop the dehumidification / reheating operation that consumes a lot of energy and to realize energy saving.
In addition, it is possible to construct an air conditioning system that realizes energy saving at low cost without changing the control logic of an existing controller.
[0017]
The control program is a third aspect of the invention, the air conditioner is connected to perform dehumidification by the dehumidifying reheat operation for heating the air of the air conditioning control target to a predetermined temperature after the supercooled, dehumidification of the air conditioner storing the humidity set value that trigger which outputs a control signal for controlling the reheating operation, is connected to the control signal according to the humidity set value in the controller to be output to the air conditioner, the input humidity set value to the controller A monitoring program that can be executed by the monitoring device to be sent, wherein the control program acquires the current humidity value in the living room from the monitoring device, and the current humidity value in the living room is the humidity if higher than the setting value but does not require dehumidification, the value of the current humidity and a chance to the controller outputs a control signal for stopping the dehumidifying reheat operation of the air conditioner Characterized in that to function as a setting value generating means for generating as that humidity setpoint.
[0018]
According to the invention of claim 3 , by setting the current humidity value in the living room space to the humidity setting value, it is possible to stop the dehumidification / reheating operation with heavy energy consumption and to realize energy saving.
In addition, it is possible to construct an air conditioning system that realizes energy saving at low cost without changing the control logic of an existing controller.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
[0020]
FIG. 1 shows a configuration of an air conditioning system 1 in the present embodiment. The air conditioning system 1 in this embodiment includes a monitoring device 2, a control device 3, one or more direct digital controllers 4 (hereinafter abbreviated as DDC 4), a plurality of air conditioners 5, a temperature sensor 6, a humidity sensor 7, and the like. Consists of measuring devices. The monitoring device 2 and the control device 3 are connected to the DDC 4.
[0021]
The monitoring device 2 aggregates the operation status of the air conditioner 5 and the measurement results of various measuring devices and displays the setting value 13 related to the control of the air conditioner 5 to the DDC 4. The function to send out. Usually, when a person determines the set value 13, the set value 13 is input to the monitoring device 2.
[0022]
Further, when the DDC 4 receives the set value 13 such as the indoor set temperature and the indoor set humidity, the DDC 4 stores the received set value 13 and outputs various control signals for controlling the air conditioner 5 according to the set value 13. Have Further, the DDC 4 has a function of sending measured values 12 calculated based on input signals from various measuring devices such as the temperature sensor 6 and the humidity sensor 7 at a predetermined timing.
[0023]
In addition, about these functions which DDC4 has, there is no change from what is conventionally. For example, if the humidity set value 13 is 50% and the current humidity in the living room calculated based on the input signal from the humidity sensor 7 is 70%, the DDC 4 performs the dehumidifying operation on the air conditioner 5. A control signal to be started is output, and when the current humidity reaches 50%, a control signal to stop the dehumidifying operation is output. If the current humidity in the living room space is 20%, the DDC 4 outputs a control signal for starting the humidification operation to the air conditioner 5, and a control signal for stopping the humidification operation when the current humidity reaches 50%. Is output.
[0024]
Moreover, the control apparatus 3 is provided with the transmission / reception part 10 and the setting value production | generation part 11, as shown in FIG. The transmission / reception unit 10 has a function of receiving the measurement value 12 transmitted by the DDC 4 and a function of transmitting the setting value 13 generated by the setting value generation unit 11. Further, the set value generation unit 11 has a function of generating a set value 13 that becomes a trigger for outputting a control signal for controlling the air conditioner 5 based on the measurement value 12 received by the transmission / reception unit 10.
[0025]
Next, operation | movement of the control apparatus 3 in this embodiment is demonstrated. In addition, the process for invalidating the setting of the humidification and dehumidification driving | operation of the air conditioner 5 is demonstrated as an example of embodiment. The humidity value in the living room calculated based on the signal input from the humidity sensor 7 is the measured value 12, and the DDC 4 outputs the control signal for controlling the dehumidification or humidification operation of the air conditioner 5 as a trigger. The value is set to 13.
[0026]
The DDC 4 now calculates the value of the current humidity in the living room based on the signal input from the humidity sensor 7 and periodically sends it to the monitoring device 2 and the control device 3 as a measured value 12. . When the control device 3 starts the control process, the transmission / reception unit 10 starts the measurement value 12 acquisition process (step S01).
[0027]
When the transmission / reception unit 10 acquires the measurement value 12 transmitted from the DDC 4 (step S02), the transmission / reception unit 10 supplies the acquired measurement value 12 to the setting value generation unit 11. When the measurement value 12 is supplied from the transmission / reception unit 10, the setting value generation unit 11 generates the setting value 13 related to the control of the air conditioner 5 based on the measurement value 12 (step S03).
[0028]
If the measured current humidity value and the set value 13 set for stopping the dehumidifying or humidifying operation are the same value, the DDC 4 inevitably outputs a control signal for stopping the air conditioner 5. It will be. Therefore, when performing the control to invalidate the humidification and dehumidifying operation settings of the air conditioner 5, when the current humidity value is supplied, the set value generation unit 11 sets the current humidity value to the humidifying or dehumidifying operation. The installed value is supplied to the transmission / reception unit 10.
[0029]
When the setting value 13 is supplied from the setting value generation unit 11, the transmission / reception unit 10 sends the setting value 13 to the DDC 4 (step S04), and proceeds to the process of acquiring the measurement value 12 (step S05). By performing the above processing, the humidity in the room space and the set value 13 become the same value, so the DDC 4 outputs a control signal for stopping the operation during the humidifying operation or the dehumidifying operation.
[0030]
Conventionally, humidification operation or dehumidification operation is performed only by causing the current humidity value in the living room to slightly differ from the set value 13, but by setting the current humidity value to the set value 13 in this way, The setting of the humidifying operation or the dehumidifying operation that consumes a lot of energy can be invalidated, and energy saving can be realized. Further, since the setting of the humidifying operation or the dehumidifying operation can be invalidated by sending the setting value 13 from the control device 3, an air conditioning system that realizes energy saving at low cost without changing the control logic of the existing DDC 4 1 can be constructed.
[0031]
<Other embodiments>
4 to 6 show an embodiment different from that shown in FIG.
[0032]
In FIG. 1, the control device 3 is connected to the DDC 4, but in the air conditioning system 1 a of FIG. 4, the control device 3 is connected to the monitoring device 2. In this case, the monitoring device 2 needs to have a function of providing the measurement value 12 sent from the DDC 4 to the control device 3 and a function of receiving the set value 13 sent from the control device 3. On the other hand, for the control device 3, the processing shown in the flowchart of FIG. 3 may be performed with the functional configuration shown in FIG. 2, and the supply destination of the set value 13 is changed from the DDC 4 to the monitoring device 2. Just do. Accordingly, the processing from step S01 to step S05 is as follows.
[0033]
First, when the control device 3 starts control processing, the transmission / reception unit 10 starts measurement value 12 acquisition processing. When the transmission / reception unit 10 acquires the measurement value 12 that is the value of the current humidity in the living room space transmitted from the monitoring device 2, the transmission / reception unit 10 supplies the value of the current humidity to the setting value generation unit 11.
[0034]
When the current humidity value is supplied, the set value generation unit 11 supplies the current humidity value to the transmission / reception unit 10 as an installation value for the humidifying operation or the dehumidifying operation. When the setting value 13 is supplied from the setting value generation unit 11, the transmission / reception unit 10 sends the setting value 13 to the monitoring device 2, and proceeds to the process of acquiring the measurement value 12.
[0035]
When the setting value 13 is supplied, the monitoring device 2 sends the setting value 13 to the DDC 4 in the same manner as when a person inputs the setting value 13. Therefore, even in such a connection form, the same effect as in the above case can be obtained.
[0036]
Further, in the air conditioning system 1 b of FIG. 5, the control device 3 is connected to the air conditioning system 1 b via the interface device 8. This is an embodiment when the communication standards of the control device 3 and the air conditioning system 1b are different, or when the data structure is different. The interface device 8 is used to absorb the difference, and converts the protocol, data, and the like. It must have a function.
[0037]
The control device 3 may have the functional configuration shown in FIG. 2 and perform the processing shown in FIG. 3, and the processing from step S01 to step S05 is not changed at all. Even in such a connection form, the same effect as in the above case can be obtained.
[0038]
In the air conditioning system 1c of FIG. 6, an embodiment in which the monitoring device 2 includes a control program 9 is shown. In this embodiment, the control program 9 causes the monitoring device 2 to realize the functions of the transmission / reception unit 10 and the set value generation unit 11 included in the control device 3 illustrated in FIG.
[0039]
First, when the control program 9 is executed, the transmission / reception unit 10 and the set value generation unit 11 are realized in the monitoring device 2. When the transmission / reception unit 10 starts the process of acquiring the measurement value 12, the transmission / reception unit 10 acquires the measurement value 12 that is the value of the current humidity in the room space transmitted from the DDC 4, and supplies the current humidity value to the setting value generation unit 11. .
[0040]
When the current humidity value is supplied, the set value generation unit 11 supplies the current humidity value to the transmission / reception unit 10 as an installation value for the humidifying operation or the dehumidifying operation. When the setting value 13 is supplied from the setting value generation unit 11, the transmission / reception unit 10 sets the setting value 13 for the monitoring device 2, and proceeds to the process of acquiring the measurement value 12.
[0041]
When the set value 13 is set, the monitoring device 2 sends the set value 13 to the DDC 4 in the same manner as when a person inputs the set value 13. Therefore, even in such a connection form, the same effect as in the above case can be obtained.
[0042]
In addition, in this embodiment, although the process which stops the humidification and dehumidification operation | movement of the air conditioner 5 was demonstrated to the example, the operation | movement which the control apparatus 3 controls is not limited to this. In addition, the cooling operation and the heating operation can be controlled by setting the temperature from the temperature sensor 6 as a set value.
[0043]
【The invention's effect】
As described above, according to the present invention, it is possible to control the operation of a useless air conditioner that is not particularly required by setting the environmental value indicating the state of the indoor environment in the living room to a set value, thereby saving energy. Can be realized. In addition, it is possible to construct an air conditioning system that realizes energy saving at low cost without changing the control logic of an existing controller.
[Brief description of the drawings]
FIG. 1 is a diagram showing a system configuration of an air conditioning system.
FIG. 2 is a functional block diagram of a control device.
FIG. 3 is a slow chart showing a processing procedure of the control device.
FIG. 4 is a diagram showing a system configuration of an air conditioning system in another embodiment.
FIG. 5 is a diagram showing a system configuration of an air conditioning system according to another embodiment.
FIG. 6 is a diagram showing a system configuration of an air conditioning system in another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air conditioning system 2 Monitoring apparatus 3 Control apparatus 4 Direct digital controller (DDC)
5 Air Conditioner 6 Temperature Sensor 7 Humidity Sensor 8 Interface Device 9 Control Program 10 Transmitter / Receiver 11 Set Value Generator 12 Measured Value 13 Set Value

Claims (3)

Humidity that triggers the output of a control signal that controls the dehumidification / reheating operation of the air conditioner connected to an air conditioner that performs dehumidification / reheating operation that heats the air to be air-conditioned to a predetermined temperature after overcooling A control device that stores a set value and is connected to a controller that outputs a control signal to the air conditioner according to the humidity set value,
When the current humidity value in the room space is obtained and the current humidity value in the room space is higher than the humidity setting value but does not require dehumidification , the controller determines the current humidity value. A set value generating means for generating a humidity set value as a trigger for outputting a control signal for stopping the dehumidifying and reheating operation of the air conditioner;
Sending means for sending the humidity setting value generated by the setting value generating means to the controller;
A control device comprising: Humidity that triggers the output of a control signal that controls the dehumidification / reheating operation of the air conditioner connected to an air conditioner that performs dehumidification / reheating operation that heats the air to be air-conditioned to a predetermined temperature after overcooling storing the set value, the control device connected to the air conditioning system including a controller for outputting a control signal according to the humidity set value to the air conditioner, and a monitoring unit for supplying the inputted humidity set value to the controller There,
When the current humidity value in the room space is obtained and the current humidity value in the room space is higher than the humidity setting value but does not require dehumidification , the controller determines the current humidity value. A set value generating means for generating a humidity set value as a trigger for outputting a control signal for stopping the dehumidifying and reheating operation of the air conditioner;
Sending means for sending the humidity set value generated by the set value generating means to the monitoring device;
A control device comprising: Humidity that triggers the output of a control signal that controls the dehumidification / reheating operation of the air conditioner connected to an air conditioner that performs dehumidification / reheating operation that heats the air to be air-conditioned to a predetermined temperature after overcooling storing the set value, which is connected to the control signal to the controller to be output to the air conditioner according to the humidity set value, a monitoring device is executable control program for sending the entered humidity set value to the controller ,
The control program causes the monitoring device to
When the current humidity value in the room space is obtained and the current humidity value in the room space is higher than the humidity setting value but does not require dehumidification , the controller determines the current humidity value. A control program that functions as a set value generation unit that generates a humidity set value that is a trigger for outputting a control signal for stopping a dehumidifying and reheating operation of an air conditioner.

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