JPH028647A - Monitoring and controlling device for air conditioner - Google Patents

Abstract

PURPOSE:To enable an air condition to be understood in real time by a method wherein a controlling means may display an air condition on a displaying means in a predetermined format. CONSTITUTION:A supervising controlling device 5 may control an air conditioner 7 in response to a temperature detected by a dry bulb temperature sensor 1 and a humidity detected by a humidity sensor 2. In turn, the supervising control device may display an air conditioner from the air conditioner 7 in a predetermined format, i.e. an air condition of a space to be air conditioned to a displaying unit 6 in response to these detected temperature and detected humidities. The controlling device 5 stores an air diagram (a diagram for showing a temperature, a humidity and enthalpy of air) shown in drawing in advance and in case that an air condition of a space to be air conditioned is to be displayed, this diagram is displayed on a screen of the displaying unit 6. For example, as shown with a black dot in the figure, a plot position in the screen is calculated in reference to a detected temperature and a detected humidity and then plotted on the air diagram. With this arrangement, an enthalpy of the space to be air conditioned (indicating an air condition) may be also acknowledged at once from the screen.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an air conditioning monitoring and control device, and particularly to an air conditioning monitoring and control device that can display the state of air (e.g., temperature, humidity, etc.) from an air conditioner. Regarding equipment.

(Prior Art) Generally, in an air conditioning system, data such as temperature and humidity of an air-conditioned space are monitored, and an air conditioner is controlled based on this data. On the other hand, data such as temperature and humidity are displayed as numerical values on a display or the like, so that these data can be directly monitored.

(Problem to be solved by the invention) By the way, in conventional air conditioning systems, data such as temperature and humidity are only displayed directly as numerical values on the display. In order to understand the air condition, data such as temperature and humidity must be plotted on an psychrometric diagram, which poses a problem in that it takes time and effort to understand the air condition.

In other words, there is a problem that the air condition cannot be grasped in real time.

(Means for Solving the Problems) According to the present invention, there is provided a detection means for detecting the air condition of at least one of the air conditioner and the air conditioned space, and monitoring and controlling of the air conditioner based on the air condition. An air conditioning monitor comprising a control means and a display means for displaying the air condition, the control means displaying the air condition in a predetermined format on the display means. A control device is obtained.

(Example) The present invention will be explained below with reference to Examples.

First, referring to FIG. 1, the air conditioning monitoring and control device includes a dry bulb temperature sensor 1, a humidity sensor 2, a monitoring and control device 5, and a CR
It is equipped with an indicator 6 such as 'l', and a dry bulb temperature sensor 1 and a humidity sensor 2 are arranged in the air-conditioned space. The dry bulb temperature sensor 1 and the temperature sensor 2 are each connected to an A/D converter 3.
and 4 to the supervisory control device 5, and the supervisory control bag yi5 controls the air conditioner 7 based on the temperature detected by the dry bulb temperature sensor 1 and the humidity detected by the humidity sensor 2. On the other hand, the monitoring control device 5 displays the air condition from the air conditioner 7, that is, the air condition of the air-conditioned space, on the display 6 in a predetermined format based on the detected temperature and detected humidity, as described later. do.

Here, referring also to Fig. 2, the monitoring and control device is pre-stored with an psychrometric diagram (a diagram expressing the temperature, humidity, and enthalpy of the air) shown in Fig. 2, and the air diagram in the air-conditioned space is When displaying the status, this psychrometric chart is displayed on the screen of the display device 6, and the plot position on the screen is determined from the detected temperature and detected humidity, as shown by the black circles in FIG. 2, for example. Plot on an psychrometric chart. As a result, the enthalpy (indicating the air condition) of the air-conditioned space is also immediately removed from the screen.

When plotting the position on the psychrometric chart, in addition to finding the plot position using dry bulb temperature and relative humidity, you can also use dew point temperature, wet bulb temperature, or absolute humidity instead of relative humidity. good.

By the way, as shown in FIG. 3, in the air conditioner 7, outside air is brought in by driving a fan (FAN) 7a, and in the summer it performs cooling, dehumidification, etc., and in the winter, it performs heating, humidification, etc. and supplies it to the air-conditioned space (indoor) 8.

On the other hand, air is returned to the air-conditioned space 8 by driving a fan (FAN) 7b. Further, a part of this return air is mixed with outside air and provided to the air conditioned space 8 via the air conditioner 7.

Such an air conditioning system not only monitors the temperature and humidity of the air conditioned space 8, but also monitors the air supplied from the air conditioner 7,
By monitoring the temperature and humidity of the return air from the conditioned space 8, the outside air, the air mixture, and the treated air in the air conditioner 7 and plotting them on an psychrometric diagram, the state of the entire air conditioning system can be immediately determined.

That is, as shown in Fig. 4, the indoor air condition (O), return air condition (・), supply air condition (x), and outside air condition (
By plotting △), processed outside air condition (), and mixture condition (b) on the air diagram on the display, and connecting the transition processes with straight lines (or curves), the condition of the entire air conditioning system can be determined. is immediately obvious.

In addition, when displaying the air condition on the psychrometric diagram, if the air condition is displayed at predetermined time intervals (for example, by using different display colors), it is possible to understand the temporal transition of the air conditioning condition. be able to.

Furthermore, when the air conditioning system is performing so-called energy-saving control, the air condition under energy-saving control is displayed on the psychrometric diagram, and the air condition when energy-saving control is not executed is displayed with data such as detected temperature and humidity at the current moment. If calculated based on the air conditioning system capacity, etc., and displayed on the psychrometric diagram, it is possible to easily understand the influence of energy saving control on the air conditioning state and the effect of energy saving control.

(Effects of the Invention) As described above, the present invention has the advantage that the operating state of the air conditioning system can be immediately grasped online, and abnormalities in the air conditioning system can be immediately detected.

[Brief explanation of the drawing]

Fig. 1 is a diagram for explaining one embodiment of the present invention, Fig. 2 is a diagram showing an example of the air condition displayed on an psychrometric chart, and Fig. 3 is a diagram for explaining another embodiment of the present invention. FIG. 4 is a diagram showing an example of an air condition song displayed on an psychrometric chart. DESCRIPTION OF SYMBOLS 1...Dry bulb temperature sensor, 2...Humidity sensor, 5...Supervisor control device, 6...Display device, 7...Air conditioner. Diagram diagram / Black scale ('C)

Claims (1)

[Claims] 1. A detection means for detecting the air condition of at least one of the air conditioner and the air conditioned space, a control means for monitoring and controlling the air conditioner based on the air condition, and a display means for displaying the air condition. An air conditioning monitoring and control device, characterized in that the control means displays the air condition on the display means in a predetermined format.