JPH02178553A - Control method for air conditioner - Google Patents

Abstract

PURPOSE:To enable the result of inference of the conditions of a room and an inhavitant to be used for the control of an air conditioner by changing a preset temperature for a preliminary operation, which is set by a room temperature regulator for a control section, in accordance with an integrated value of illumination at each of hours, and by producing a signal that switches on and off the operation of the air conditioner, to control a blower, a compressor, etc. CONSTITUTION:A sample period is set as 'n' days, and the intensity of illumination outputted by a photo detector 7 in a day is determined every 't' minutes. By repeating this determination every day, an integrated value 'm' of illumination during the sample period is obtained. In this case, it is expected that a cooling load is large in a time zone when the integrated value 'm' of illumination is high. Therefore, in order to reduce the time necessary for a room temperature TR to reach a preset temperature TS after an operation switch has been turned ON, and also to promote comfortableness, a preliminary operation is carried out for a given period of time DELTAt in advance in a time zone when the integrated value 'm' of illumination is higher than a preset value 'm1' so as to keep the room temperature TR somewhat close to the preset temperature TS in advance. In this preliminary operation, a signal that allows a room temperature regulator for a control section to change a preset temperature is outputted so as to reach a preset temperature TP at the time of the preliminary operation even in the case where the operation switch is off. According to this signal output, a blower, a compressor, etc., can be controlled.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a method for controlling an air conditioner.

In recent years, with the advancement of electronic control technology, various types of automatic operation functions have become widespread in conventional air conditioners, making it possible for even the elderly and children who are unaccustomed to operating machines to maintain comfortable air conditioning. In order to perform such automatic operation appropriately, it is necessary to accurately detect the conditions of the air-conditioned room and the conditions of the occupants, and to comprehensively evaluate the comfort and energy-saving performance required of the air conditioner. It is necessary to take these into account, select the operating pattern that seems most appropriate, and control the air conditioner based on that.

A conventional example of this method (Japanese Unexamined Patent Publication No. 59-104038) will be described with reference to the drawings. In this example, the air conditioner is equipped with a photodetector, which allows the air conditioner to cover 8j! It attempts to detect the load in the room and the living conditions of the occupants.

In other words, it has a control prong as shown in Figure 4, and as shown in Figure 5, it detects the amount of solar radiation during the day, and when there is a lot of sunlight, there is also a lot of radiant heat, so the set temperature is lowered during both air conditioning and heating. It is. Furthermore, as shown in FIG. 6, when sleeping, the lights are normally turned off, so based on this, temperature control during sleep can be performed.

Problems to be Solved by the Invention However, in such an air conditioner control method, it is only possible to detect the situation, state, and changes in the room or area related to the illuminance at that time. It is impossible to predict whether there will be people in the near future.

The present invention uses a photodetector to estimate the situation of a room and its occupants, and uses the results to control an air conditioner.

Means for Solving the Problems In order to solve the above problems, the present invention provides a control device for an air conditioner that includes a room temperature detector, a room temperature controller, a control section, and an output section. The #I calculated value of the illuminance detected by the photodetector at each time is determined from the detected illuminance during a certain sample period, and the preliminary operation temperature setting of the room temperature controller in the control unit is changed during cooling based on this integrated value. , outputs a signal to turn on and off the operation of the air conditioner, and uses this output to control the blower, compressor, etc.

Effect With the above configuration, the air conditioner control device of the present invention performs a preliminary operation in advance at a time of the day during cooling when a heavy load with a high integrated value of illuminance is expected. When the user turns the operation switch on, the set temperature can be quickly reached, or due to the high integrated illuminance value,
By changing the set temperature during preliminary operation, it is possible to achieve control such as shortening start-up time and saving energy at the same time.

Embodiment Hereinafter, a control device for an air conditioner according to an embodiment of the present invention will be explained with reference to the drawings.

FIG. 2 shows how to obtain the integrated illuminance value, where the sampling period is set to n days, and the illuminance output from the photodetector is determined every minute during the day. By repeating this every day during the sampling period, the illuminance 4irI value m during the sampling period can be obtained as shown in FIG.

Next, with reference to FIG. 3, an example of a temperature control method using this illuminance integrated value m will be explained. Here, it is naturally expected that the cooling load will be large during the time period when the illuminance integrated value m is high. Therefore, in order to shorten the time required for startup, that is, the time from when the operation switch is turned on until the room temperature T reaches the set temperature T3, and to promote comfort, the integrated illuminance value m is set to a preset value m, In higher time periods, preliminary operation is performed for a certain period of time Δ, and the room temperature T is slightly adjusted to the set temperature T in advance.

This preliminary operation should be kept close to the set temperature T during preliminary operation even when the operation switch is turned off.

Adjust the room temperature of the control unit so that It outputs a signal that changes the set temperature of the lff device, and uses this output to control the blower, compressor, etc.

However, such preliminary operation may lead to wasted energy consumption if a large load does not occur as expected. In particular, the closer the set temperature T for the preliminary operation and the set temperature T for the main operation are, the stronger this tendency becomes. Therefore, the illuminance integrated value m+ that should be used for preliminary operation
It is necessary to appropriately select the set temperature T during preliminary operation.

Effects of the Invention According to the present invention, it is possible to determine the level of demand for air conditioner operation by the air conditioned room and the occupants, and provides a comfortable and energy-saving air conditioner control method. It is.

[Brief explanation of the drawing]

Fig. 1 is a control block diagram of the present invention, Figs. 2 and 3 are time chart diagrams showing control of the present invention, Fig. 4 is a control block diagram of a conventional example, and Figs. 5 and 6 are conventional examples. FIG. 1...control unit, 2...operation switch,
3... Room temperature detection thermistor, 4... Relay output section for compressor, 5... Relay output section for blower, 6... Infrared detector, 7 ......Photodetector, 8...Room temperature jJiJflff device. Name of agent: Patent attorney Shigetaka Awano Funeral map for one person

Claims (1)

[Claims] In an air conditioner control device consisting of a room temperature detector, a room temperature controller, a control unit, and an output unit, a photodetector is installed, and the integrated value of the illuminance detected by the photodetector at each time of the day is fixed. During cooling, this integrated value is used to output a signal that changes the pre-operation set temperature of the room temperature controller in the control unit.
A method of controlling an air conditioner that controls a compressor, etc.