JP2517164B2 - Control device for air conditioner - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an air conditioner for increasing indoor comfort by controlling indoor temperature, air volume, and wind direction.

Conventional technology When controlling the room temperature with an air conditioner, in the heating example, in order to improve the characteristics when the room temperature rises, the target room temperature of the air conditioner is shifted to a higher value for a certain period of time, or the room temperature is increased. The method of controlling the compressor operating frequency has been adopted.

FIG. 4 is a block diagram showing an outline of a conventional air conditioner control device.

The control signal generating means 19 shown in FIG. 4 controls the time taken by the timer 50 from the time when the air conditioner is turned on and the suction temperature.
The control signal 44 is generated from 43 and the like. During heating, when the time after turning on the power was within 60 minutes, the indoor target temperature was set to be 2 ° C. higher than the temperature set by the user in order to quickly raise the indoor temperature.

Problems to be Solved by the Invention In the conventional control device for an air conditioner, in the control only by the time after turning on the power and the indoor temperature characteristic, it is possible to flexibly deal with the magnitude of the air conditioning load in the room in which the air conditioner is installed. I can't do it. For example, when the load is too low, the room temperature becomes higher than the target temperature, and when the load is too high, the room temperature becomes too lower than the target temperature.
In addition, there is a problem that the comfort of human beings in the room is not taken into consideration.

The comfort of people in the room depends on the indoor humidity, temperature, air flow rate,
The quality is determined by the environmental conditions of the room, such as the radiation temperature of the surrounding wall, and the state of the human being, which is determined by the human metabolism and the amount of clothing.
Therefore, comfortable air conditioning cannot be performed unless the comfort of the person inside the room is estimated by estimating the radiation temperature of the surrounding wall in the room where the air conditioner is installed. The present invention has been made in view of the above problems, and an object of the present invention is to estimate the comfort of a person in a room to realize a more comfortable air conditioning environment.

Means for Solving the Problems To achieve this object, the present invention provides a plurality of sensor means for detecting environmental conditions inside and outside the air conditioner, and a storage means for holding the previous state of the sensor means. And a first control signal for the blowing temperature of the air conditioner, the wind direction, and the air volume by estimating the comfort level of a person in the room from the output values from the sensor means and the storage means and the temperature value set by the user. The first output signal output from the control signal generating means is interpolated by the output values from the control signal generating means, the sensor means and the storage means to generate a second control signal for controlling the air conditioner. And means for doing so.

Operation According to the present invention, therefore, the portion for estimating the comfort of a person in the room and generating the control signal is replaced with the storage means of the look-up table which receives the output values of various sensors, thereby simplifying the operation. It is possible to realize a more comfortable and comfortable air conditioning environment.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a control device for an air conditioner according to the present invention.

In FIG. 1, the look-up table 3 has a sensor output value 20 from a large number of sensors 1 in the air conditioner, a user set temperature value 24 from a remote controller or the operation panel 4,
The output of the storage means 2 that stores the previous state of the sensor 1 is used as the input value. The control signal 25, which is the output of the lookup table 3, is a control signal for the air conditioner.
Is supplied to the interpolator 5. The output value 21 from the sensor 1 and the output value 26 from the storage unit 2 are supplied to the interpolating unit 5, and the interpolating unit 5 interpolates the portion of the control signal 25 that needs to be interpolated,
The control signal 27 is passed to the air conditioner 6 to execute the operation of the air conditioner.

Next, referring to FIG. 2, a method of creating the lookup table 3 in FIG. 1 will be described.

In FIG. 2, the neural network model means 13 has an outdoor temperature 7, an indoor temperature 8, an inclination 9 of the indoor temperature 7 obtained at N-second intervals (N is a positive real number), an air volume 10, a set temperature 11 of the user. , Human body temperature 12 etc. are input. The neural network schematic unit 13 performs learning so that the actually measured PMV 14 measured indoors is used as the learning data 34 and an estimated value 34 of the actually measured PMV (predicted average number of votes) 14 is output.

There are various methods for learning algorithm of the neural network schematic unit 13, but for example, a backpropagation algorithm (reference: Runmelhart, DE and McClelland,
JL (Eds.), "Parallel Distributed Processing, Expl
ortion in the Microstructure of Cognition.Vol.1,2,
MIT Press, Cammbridge (1986)) finds the optimal solution by the descent method. When the PMV (predicted average number of votes) can be sufficiently estimated by the neural network schematic means 13, if the comfort is not satisfied, the output value 35 of the neural network schematic means maximizes the capacity of the air conditioner. Control signals that can be
36 is created by the control signal generation means 15.

The look-up table 3 is created by causing the neural network model means 13 to roughly quantize and input the inputs from the sensors 7 to 12, and writing the result into the look-up table 3. When the look-up table means 3 is created, the output of the neural network model means 13 is converted from a continuous quantity to a discrete quantity. Therefore, in the present invention, after the data of the created table is output, linear interpolation is performed, Perform fine control. FIG. 3 shows the interpolation method.

For example, if there is a reference to the indoor temperature 38 in increments of 1 ° C. as an input to the lookup table 16, the indoor temperature 38 will be 0.5.
In order to make it possible even in increments of ° C, if the room temperature 38 is 2.5 ° C as shown in Fig. 3, the contents of the look-up table 16 of 2 ° C and 3 ° C are referenced and added by the adder 17, Further, it is halved by the divider 18 to obtain the control signal value 42 of 2.5 ° C.

As described above, as a means of knowing the human condition, the metabolic rate and the clothing amount are estimated by the user's set temperature and the human body temperature sensor, and the indoor / outdoor temperature, the air volume of the air conditioner, and the indoor temperature N seconds. (N is a positive real number) The comfort level of a person in the room is estimated based on the indoor environment that can be detected by the air conditioner, such as the inclination, and the control signal for the air conditioner is generated based on the estimation result. As an example of the comfort to be inferred, the predicted average number of votes (PMV) that calculates the comfort according to the human condition or indoor environment, or the standard new effective temperature (SET) that predicts the human physiological condition or sensation ) Is provided, the output value of the sensor is input to the neural network schematic circuit, PMV and SET are learned so that they can be estimated, and PMV and SET can be estimated, and a control signal is generated based on the estimation result. ing.

The neural network schematic circuit and the control signal generation part are replaced with a storage device of a look-up table that matches the input value of the sensor, and the part lacking information by the look-up table is controlled by interpolation of the contents of the look-up table. I am trying to generate a signal.

EFFECTS OF THE INVENTION As described above, the present invention is a control device for an air conditioner that performs indoor temperature air conditioning by controlling the indoor temperature, air flow rate, and air direction. Sensor means, a storage means for holding the previous state of the sensor means, an output value from the sensor means and the storage means, and a temperature value set by the user to estimate the comfort of a person in the room, and the air conditioner. Control signal generating means for generating a first control signal for the blowout temperature, the wind direction and the air volume, and the first output signal output from the control signal generating means is interpolated by the value input to the control signal generating means, Since it is configured to include the means for generating the second control signal for controlling the harmony machine, it is possible to realize a more comfortable air conditioning environment by estimating the comfort feeling of the person in the room.

[Brief description of drawings]

FIG. 1 is a basic configuration block diagram showing an embodiment of an air conditioner control device according to the present invention, and FIG. 2 is a block explaining a look-up table creation circuit of the air conditioner control device according to the present invention. FIG. 3 and FIG. 3 are block diagrams illustrating the processing of the interpolation unit of the control device for an air conditioner according to the present invention, and FIG. 4 is a block diagram showing the control device for a conventional air conditioner. 1 ... Sensor, 2 ... Memory means, 3 ... Lookup table means, 4 ... Remote control or operation panel, 5 ... Interpolator, 6 ... Air conditioner.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Kunio Tada Kunio Tada 3-10-1 Higashisanda, Tama-ku, Kawasaki City, Kanagawa Matsushita Giken Co., Ltd. (56) Reference JP-A-3-225144 (JP, A)

Claims (8)

(57) [Claims] 1. A plurality of sensor means for detecting environmental conditions inside and outside of an air conditioner, storage means for holding a previous state of the sensor means, and output values from the sensor means and the storage means. And a temperature value set by the user, a control signal generation unit that estimates a comfort level of a person in the room and generates a first control signal of the blowing temperature, the wind direction, and the air volume of the air conditioner, and the sensor unit. A second control unit that interpolates a first output signal output from the control signal generation unit according to an output value from the storage unit and controls the air conditioner.
An air conditioner control device, comprising: an interpolating unit that is a unit that generates the control signal. 2. The sensor means is a detector for detecting indoor / outdoor temperature, air volume of an air conditioner, and humidity.
Air conditioner control device described. 3. The control device for an air conditioner according to claim 1, wherein the gradient of the indoor temperature is stored in the storage means at N-second intervals (N is a positive real value). 4. The control signal generating means is a look-up table capable of referring to an output of a function for estimating the comfort of a person in the room by inputting the control signal generating means. Air conditioner control device described. 5. The control device for an air conditioner according to claim 1, wherein the ambient wall radiant temperature is used as a comfortable feeling for a person who controls the air conditioner. 6. A predicted average number of votes (PMV) calculated according to a human condition or an indoor environment as a human comfort level, or a standard new effective temperature (SET) for predicting a human physiological condition or sensation The control device for an air conditioner according to claim 1, wherein the control device is used as a human comfort feeling. 7. The control signal generating means learns the comfort of the person in order to estimate the comfort of the person in the room from the output of the sensor means for detecting the indoor and outdoor environmental conditions provided in the air conditioner. The air conditioner control device according to claim 1, wherein the control device is created from the neural network schematic circuit circuit. 8. The control device for an air conditioner according to claim 4, wherein the interpolating unit interpolates a step of the room temperature by linear interpolation.