JPH01147244A - Airconditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioner for adjusting the temperature, humidity, etc. of indoor air.

[Prior art]

With conventional air conditioners, it has been impossible to automatically detect the location of people in the room or the coming and going of people. A setting device such as a remote control controlled the air volume, air direction, air blowing temperature, etc.

The air volume is adjusted by controlling the rotation speed of a blower fan provided in the indoor blower, and the direction of the air is adjusted by operating a louver of a wind direction adjustment device provided in the indoor blower. Further, the blowing temperature of the air is adjusted by controlling the operating state of the outdoor compressor.

[Problem that the invention seeks to solve]

However, in the conventional air conditioning i mentioned above, when controlling the air volume, wind direction, and air blowing temperature using a remote control setting device, for example, when the person who set the settings moves to another place and the person's position in the room changes. , I had to set it up again.

In addition, when a new person enters the room or when the air conditioner starts operating, the user first controls the air conditioning to focus on the person and then focuses on the room in order to increase the air conditioning effect. Tend. Therefore, as time passes, it is necessary to reset the air volume, air direction, and air blowing temperature in small increments, which is very troublesome.

Furthermore, the operating method of the setting device itself is complicated, and it is not possible for anyone to easily operate the setting device to achieve comfortable air conditioning.

Therefore, the above-mentioned remote control setting device is equipped with a transmitter, and by receiving the signal from the transmitter, the position of the user is indirectly detected, and the air volume, wind direction, and air blowing temperature are controlled. Air conditioners have also been developed. However, in this case, the user must always have the remote control setting device at hand, and if the user leaves the remote control setting device, unintended control may be performed for the user, resulting in a lack of comfort. There was a problem in that it was damaged.

Therefore, an object of the present invention is to directly detect the entry and exit of a person and the position of a person in a room, and automatically detect the air volume, wind direction, and air blowout without having to perform troublesome setting operations using a remote control setting device or the like. To provide an air conditioner capable of controlling temperature and providing comfortable air conditioning.

[Means for solving problems]

In order to achieve the above object, the main means adopted by the present invention is mW.

An air conditioner that can adjust the wind direction and air blowing temperature is equipped with a detection means that detects a person using infrared rays emitted from the human body. When a person enters the room, the air volume, wind direction, and air blowing temperature are controlled based on the person for a predetermined period of time, and after the predetermined time has elapsed, the air volume, wind direction, and air blowing temperature are controlled based on preset conditions. This is an air conditioner in which temperature is controlled.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples embodying the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention. It should be noted that the following examples are examples embodying the present invention, and are not intended to limit the technical scope of the present invention.

Here, FIG. 1 is a block diagram showing the configuration of an air conditioner according to an embodiment of the present invention, FIG. 2 is a configuration diagram of a detection means that can be used in the air conditioner, and FIG. A perspective view showing the configuration of a wind direction adjustment device that can be used in a conditioner, FIG. 4 is a flowchart showing the control procedure when operating the air conditioner, and FIGS. 5, 6, and 7 are respectively This figure is for explaining the air blowing direction during operation of the air conditioner, and each figure +al is a plan view, and each figure (bl is a side view in each figure +al).

As shown in FIG. 1, the air conditioner according to this embodiment is provided with an infrared temperature detection device 2 (detection means) that detects a person using infrared rays emitted from the human body. The main control unit 1 detects the entry/exit and position of a person in the room, and controls the wind direction, air volume, and air blowing temperature based on the person within a predetermined time when the person enters the room, and the predetermined time elapses. After that, the air volume, air direction, and air blowing temperature are controlled based on preset conditions.

The infrared temperature detection device 2 detects the presence or absence of a person by detecting infrared rays emitted from a human body, and has a sensor section 7 and a drive section 8 as shown in FIG. There is.

The sensor section 7 inputs infrared rays emitted from a human body into an infrared sensor 10 through a lens 9, and converts the infrared rays into an electrical signal.

The electrical signal from the sensor section 7 is input to the main control section 1.

In order to accurately detect the position of a person in the room, the lens 9 limits the direction of the emitted infrared rays, gives the infrared sensor 10 directivity, and at the same time efficiently directs the infrared rays to this infrared sensor. This is for inputting data to 10.

The drive unit 8 includes a drive motor 11 and a scanning angle detector 12.
By rotationally driving the sensor section 7 with the drive motor 11 and causing it to scan, the sensor section 7 can detect the person at any position in the room. Further, the scanning angle of the sensor section 7 is sequentially detected by the scanning angle detector 12 and inputted to the main control section 1 .

Therefore, in the infrared temperature detection device 2, the presence of a person is detected by the infrared sensor 10 of the sensor section 7, and the position of the person is detected from the scanning angle detected by the scanning angle detector 12 at that time. The location of people in the room and their entry and exit are detected.

The main control unit 1 includes a microcomputer, a memory, a power supply, etc., and a room temperature detector 3 for detecting an electrical signal from the infrared temperature detection device 2 and the indoor temperature.
Compare with the electrical signal from.

The outdoor compressor 4. is calculated based on the calculation result.
This is for controlling the indoor blower 5, the wind direction adjustment device 6, etc.

The outdoor compressor 4 can change the blowing temperature of air by controlling its operating state in accordance with a control signal from the main controller 1, and the indoor blower 5 is a blower fan (not shown). By controlling the rotation speed, the air volume can be changed.

The wind direction adjustment device 6 includes a vertical louver 1 as shown in FIG.
3 and horizontal louvers 14a, 14I, and the vertical louver drive device 1
5 operates the vertical louver 13, the air blowing direction is adjusted in the vertical direction, and the horizontal louver drive devices 16a, 1
6I independently actuate the horizontal louvers 14Il, 14b, thereby adjusting the air blowing direction in the left and right directions, respectively.

By operating the vertical louver 13 and the horizontal louvers 14a and 14I in combination and adjusting the direction of air blowing in all directions, you can freely blow air so that the air is concentrated around people or spread throughout the room. The direction can be adjusted.

Next, the control procedure of the air conditioner during cooling operation, for example, will be explained based on FIG.
, S2. S3. ... represents each control step.

As mentioned above, when a new person enters the room, especially when they come from a harsh outdoor environment, in order to ensure comfort, the wind is directed directly to the area where the person is. There is a tendency for air conditioning to be carried out by increasing the airflow, increasing the air volume, or even setting the air blowing temperature to a lower level.

This tendency becomes more pronounced as the outdoor environmental conditions become more severe.

First, when a signal greater than a preset value is input from the infrared temperature detection device 2 to the main control unit 1 (Sl), the main control unit B
1, it is determined that a new person has entered the room within the scanning range of the sensor section 7 of the infrared temperature detection device 2. The set value is determined by taking into account the room temperature detected by the room temperature detector 3 and the temperature based on infrared rays emitted from the human body.

Further, in S2, the value of the scanning angle of the sensor unit 7 at that time detected by the scanning angle detector 12 is also input to the main control unit 1, and the position of the person in the room is stored in the main control unit 1.

In S3, when the infrared temperature detection device 2 scans again, if the output signal from the infrared temperature detection device 2 is equal to or higher than the set value at the same position, it is assumed that there has been no change in the position of the person in the room (S4 ), the human body detection timer provided in the main control unit 1 starts counting (
S6).

If the value of the scan angle of the sensor unit 7 detected by the scan angle detector 12 in S4 is different between the previous time and this time,
Assuming that the position of the person in the room has changed, the human body detection timer is cleared in S5.

The time counted by the human body detection timer in S6 becomes the total time that the person remained in that position, and in S7, the main controller 1 controls the horizontal louver 14 so that the cold air gathers at the position indicated by the scanning angle. ．． 14b and the optimal position of the vertical louver 13 are calculated, and based on the calculation results, the main control section 1 controls the horizontal louver drive device 16I1.16.
A control signal is output to each of the vertical louver driving device 15 and the vertical louver driving device 15. Then, the horizontal louver drive device 16. ', 16
I, and the horizontal louver 14 by the vertical louver drive device 15 =,
14I and the vertical louver 13 are each driven and controlled until they are at their optimum positions (S8 and S9).

Figure 5(a) shows the direction of air blowing at this time.

(bl, +8 in the same figure) is the horizontal louver 14, 1.14+
, and the figure (b) shows the direction of air blowing by the banner louver 13, respectively.

At this time, the air volume is controlled to be relatively large and the air blowing temperature is controlled to be low.

When it is determined that there is no movement of people in the room and the counting time by the human body detection timer has reached a preset predetermined value T (SIO), the ventilation is The louvers 14a and 14b are each driven one step outward, and the vertical louver 13 is driven one step upward (Sll).

The direction of air blowing at this time is shown in Figure 6 (al, (b). Also, at this time, the air volume is controlled to gradually decrease (
S12), the air blowing temperature is then controlled to be slightly higher (Si3). This is a control to prevent cold air from directly hitting a person, lowering their body temperature, and causing discomfort to the person.

If it is determined in S14 that the counting time by the human body detection timer has reached the preset value T, the air conditioning control will change from the air conditioning control that has been implemented until now, focusing on people, to taking into account the entire room, including people. Switched to comprehensive air conditioning control.

The values of T and T above are set as the control time of the air conditioner so as not to cause discomfort to the person in the room due to the wind direction, air volume, and air blowing temperature when air conditioning is performed. be done.

As for the above-mentioned general air conditioning, the outdoor compressor 4. The indoor blower 5 and the wind direction adjustment device 6 are controlled to adjust the air blowing temperature.

Various control modes can be considered by adjusting the air volume and the air direction, respectively. - As an example, see Figure 7(a), (
As shown in bl, a control mode that sends wind so as to envelop a person can be considered.

In the above embodiment, the case where - people newly entered the room was explained as an example, but the same applies when there are - or more people in the room from the beginning. Air conditioning is performed according to the control procedure described above, with priority given to those who have arrived.

Further, when a plurality of people enter the room and are located at different locations, air conditioning is individually performed for each person according to the above-described control procedure in a time-sharing manner.

〔Effect of the invention〕

As described above, the present invention provides an air conditioner that can adjust the air volume, wind direction, and air blowing temperature, and is provided with a detection means for detecting a person by infrared rays emitted from the human body. It detects the entry/exit and position of a person, and when a person enters the room, it controls the air volume, wind direction, and air blowing temperature based on that person within a predetermined time, and after the predetermined time has elapsed, a preset Since this air conditioner is characterized by controlling the air volume, air direction, and air blowing temperature based on conditions, there is no need to perform cumbersome setting operations using a remote control setting device, etc., as in the case of conventional devices. It is possible to directly detect the entry/exit and position of people in a room and automatically control the air volume, air direction, and air blowing temperature to achieve comfortable air conditioning.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an air conditioner according to an embodiment of the present invention, FIG. 2 is a configuration diagram of a detection means that can be used in the air conditioner, and FIG. 3 is a block diagram showing the configuration of an air conditioner that can be used in the air conditioner. A perspective view showing the configuration of a wind direction adjustment device that can be used, FIG. 4 is a flowchart showing the control procedure when operating the air conditioner, and FIGS. 5, 6, and 7 are respectively Each figure (a) is a plan view for explaining the air blowing direction during operation of the air conditioner. Each figure (bl is a side view in each figure (a+). [Explanation of symbols] 1... Main control unit 2... Infrared temperature detection device (detection means) 3... Room temperature detector 4... - Outdoor compressor 5...indoor blower 6...wind direction adjustment device.

Claims (1)

[Claims] 1. In an air conditioner that can adjust the air volume, wind direction, and air blowing temperature, a detection means for detecting a person by infrared rays emitted from the human body is provided, and the detection means detects the entrance and exit of the person and the position in the room, When a person enters the room, the air volume, wind direction, and air blowing temperature are controlled based on the person for a predetermined time, and after the predetermined time has elapsed, the air volume, wind direction, and air temperature are controlled based on preset conditions. An air conditioner characterized by controlling the blowout temperature of the air.