JP2019120686A - Determination system, air conditioning system, determination method, and program - Google Patents

Abstract

To provide a determination system capable of suppressing degradation of temperature detection accuracy.SOLUTION: A determination system 2 includes an air blower unit 3, an infrared sensor, and a determination unit 6. The air blower unit 3 blows out hot air or cold air toward a target area during an air blowing period. The infrared sensor is configured to detect a piece of temperature information after blowing representing the temperature in the target area in a period after blowing being a period after the air blowing period. The determination unit 6 determines the existence/absence of an object in the target area by using at least the piece of temperature information after blowing.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a determination system, an air conditioning system, a determination method, and a program, and more particularly, to a determination system for determining the presence or absence of an object in a target area, an air conditioning system including the same, a determination method, and a program.

  The air conditioner of patent document 1 is illustrated as a prior art example. The air conditioner includes a main body, an infrared sensor, a control unit, and a left and right air direction control plate.

  The main body has a suction port for sucking the air of the room and a blow port for blowing the conditioned air. The infrared sensor is attached to the front of the main body downward at a predetermined depression angle to detect the temperature of the temperature detection target. The control unit controls the air conditioner by detecting the presence of a person or a heat generating device by an infrared sensor. The left and right wind direction control plate is provided at the outlet and controls the wind direction of the blowout wind in the left and right direction.

  The infrared sensor is rotationally driven in the left-right direction within a predetermined angle range to acquire thermal image data.

  The control unit acquires thermal image data of the room by the infrared sensor at least at the start of operation. The control unit acquires thermal image data for each of a first state in which the left and right air direction control plate is inclined to the right and a second state in which the left and right air direction control plate is inclined to the left. The control unit determines the installation position in the room of the main body based on the thermal image data.

Unexamined-Japanese-Patent No. 2010-14350

  In the air conditioner described in Patent Document 1, when the distance from the main body to the wall (left wall or right wall) of the room is short, the blowing air may hit the wall and bounce back. Therefore, when the temperature is detected by directing the infrared sensor in the same direction as the direction of the blowing air, the wind bouncing off the wall may hit the infrared sensor. This wind becomes a thermal noise and may reduce the temperature detection accuracy by the infrared sensor.

  An object of the present disclosure is to provide a determination system, an air conditioning system, a determination method, and a program capable of suppressing a decrease in temperature detection accuracy.

  A determination system according to an aspect of the present disclosure includes a blower, an infrared sensor, and a determination unit. The air blowing unit sends hot air or cold air toward the target area during the air blowing period. The infrared sensor detects post-blowing detected temperature information. The post-blowing detection temperature information is information indicating the temperature of the target area in a post-blowing period which is a period after the blowing period. The determination unit determines the presence or absence of an object in the target area using at least the post-blowing detected temperature information.

  An air conditioning system according to an aspect of the present disclosure includes the determination system and a control unit. The control unit controls the blower unit based on the determination result of the determination unit.

  The determination method according to an aspect of the present disclosure sends hot air or cold air toward the target area during the air blowing period, and detects after the air blowing that indicates the temperature of the target area during the post air blowing period that is a period after the air blowing period. Temperature information is detected, and the presence or absence of an object in the target area is determined using at least the detected temperature information after blowing.

  A program according to an aspect of the present disclosure is a program for causing one or more processors to execute the determination method. The program may be recorded and provided on a non-transitory recording medium.

  A determination system, an air conditioning system, a determination method, and a program according to an aspect of the present disclosure can suppress a decrease in temperature detection accuracy.

FIG. 1 is a block diagram of an air conditioning system provided with a determination system according to an embodiment. FIG. 2 is a perspective view of a room provided with the above air conditioning system. FIG. 3 is a schematic view of an infrared detection device in the determination system of the same. FIG. 4 is an explanatory view showing an infrared detecting unit and a scanning unit in the above infrared detecting device. FIG. 5 is a view showing an example of a thermal image taken by the above infrared detection device. 6A to 6C are diagrams for explaining the operation of the determination system of the same in the first mode. FIGS. 7A and 7B are diagrams for explaining the operation of the determination system of the same in the second mode. 8A to 8F are diagrams for explaining the operation of the determination system of the same in the third mode. 9A to 9E are diagrams for explaining the operation in the fourth mode of the determination system of the same. 10A to 10D are diagrams for explaining the operation of the determination system of the same above in the fifth mode.

(1) Embodiment Hereinafter, the judgment system 2 and the air conditioning system 1 which concern on embodiment are demonstrated using drawing. Each drawing described in the following embodiment is a schematic drawing, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual dimensional ratio.

(1.1) Outline As shown in FIG. 1, the air conditioning system 1 of the present embodiment includes a determination system 2 and a control unit 10.

  The determination system 2 includes a blower 3, an infrared detection device 4 including an infrared sensor 401 (see FIG. 4), and a determination unit 6.

  The blower 3 sends hot air or cold air toward the target area A1 (see FIGS. 6A to 6C) during the air blowing period T1. Hereinafter, the sending of the warm air or the cold air by the blowing unit 3 is also referred to as the blowing of the blowing unit 3. The infrared sensor 401 detects (acquires) post-blowing detected temperature information. The post-blowing detection temperature information indicates the temperature of the target area A1 in the post-blowing period T2, which is a period after the blowing period T1. The determination unit 6 determines the presence or absence of the object B1 in the target area A1 using at least the post-blowing detection temperature information.

  The control unit 10 controls the blower unit 3 based on the determination result of the determination unit 6.

  When the blower 3 sends warm air to the target area A1, when the object B1 (for example, a wall of a room) exists in the target area A1, heat (heat energy) contained in the warm air is absorbed by the object B1. Therefore, when there is an object B1 in the target area A1, the temperature detected by the infrared sensor 401 during the post-blowing period T2 by the amount of heat absorbed by the object B1 as compared to the case where there is no object in the target area A1. Will be higher. Further, when the blower 3 sends cold air to the target area A1, if the object B1 exists in the target area A1, the heat contained in the object B1 is taken away by the cold air. Therefore, when there is an object B1 in the target area A1, the temperature detected by the infrared sensor 401 in the post-blowing period T2 is equivalent to the heat taken away by the cold air, as compared with the case where there is no object in the target area A1. It gets lower. The determination unit 6 may determine the presence or absence of the object B1 in the target area A1 by using information (detection temperature information after air blowing) indicating a temperature (detection temperature after air air t1) detected in the air after air blowing period T2. It becomes possible.

  Here, the temperature after detection of air temperature is a temperature of the object area A1 detected by the infrared sensor 401 in a period after the warm air or the cold air is blown from the air blowing unit 3 to the object area A1 (after air blowing is finished). Indicates That is, when the infrared sensor 401 detects the post-blowing detected temperature information, the wind (hot air and cold air) is not sent from the blowing unit 3 to the target area A1. Therefore, the post-blowing detection temperature information is not easily affected by the thermal noise caused by the wind sent from the blowing unit 3. Therefore, according to the determination system 2 of the present embodiment, it is possible to suppress the decrease in the detection accuracy of the temperature (the detected temperature after blowing t1).

(1.2) Configuration The determination system 2 of the present embodiment and the air conditioning system 1 including the same will be described in more detail with reference to FIGS. 1 to 10E. Although the case where the air conditioning system 1 is installed in the room 9 (refer FIG. 2) of a detached house is demonstrated to an example below, the air conditioning system 1 is not restricted to this example. The air conditioning system 1 may be installed, for example, in facilities such as each dwelling unit of an apartment house, an office, a store, a factory, and a hospital, or may be installed in a mobile body such as a vehicle.

  As shown in FIG. 1, the air conditioning system 1 includes a determination system 2 and a control unit 10. The determination system 2 includes a housing 5 (see FIG. 2) in addition to the blower 3, the infrared detection device 4, and the determination unit 6.

  The air conditioning system 1 is an air conditioner (so-called air conditioner; air conditioner). As shown in FIG. 2, the case 5 of the air conditioning system 1 is installed on one wall surface 90 of the room 9 of the detached house. Hereinafter, one wall surface 90 in which the housing 5 is installed in the room 9 is referred to as an installation surface 90.

  In the following, the normal direction of the installation surface 90 (the direction from the installation surface 90 toward the housing 5) is defined as the front, and the opposite direction is defined as the rear. Further, a direction perpendicular to the vertical direction and the front-rear direction in the plane of the installation surface 90 is defined as the left-right direction. However, these directions are for convenience of description, and are not intended to limit the direction when the air conditioning system 1 is actually used.

  The housing 5 can be attached at any position on the installation surface 90. That is, the housing 5 is attached to an arbitrary position (arbitrary height position) in the vertical direction on the installation surface 90, and is attached to an arbitrary position (arbitrary horizontal position) in the horizontal direction (left and right direction).

  The housing 5 is in the form of a rectangular box extending in the horizontal direction (left and right direction). On the front surface of the housing 5 (the surface of the housing 5 opposite to the surface facing the installation surface 90), a blowout port 51 for passing warm air or cold air sent from the air blowing unit 3 is formed. . The outlet 51 is a hole that is long in the horizontal direction (left and right direction). The housing 5 holds at least the blower 3 and the infrared detection device 4. In the present embodiment, the determination unit 6 and the control unit 10 are also held by the housing 5.

  The blower 3 is housed in the housing 5. Here, the blower 3 includes a heat exchanger of a heat pump type air conditioner that exchanges heat with air using heat of vaporization and heat of condensation of a heat medium, and a blower.

  The heat exchanger of the blower unit 3 is connected, for example, to a heat exchanger of an outdoor unit disposed outside (outdoor) of the room 9 via a pipe. The heat exchanger of the blower unit 3 operates as a condenser during heating operation to send warm air, and operates as an evaporator during cooling operation to send cold air.

  The blower of the blower unit 3 includes a fan. The blower delivers the air around the heat exchanger warmed (or cooled) by the heat exchanger to the outside of the housing 5 from the outlet 51 as warm air (or cold air).

  The blower unit 3 further includes a wind direction control unit 7. The wind direction control unit 7 controls the direction of the wind sent from the blowing unit 3. The wind direction control unit 7 is a so-called louver. The wind direction control unit 7 is disposed at the outlet 51 of the housing 5. The wind direction control unit 7 controls the direction of the wind sent from the outlet 51 of the housing 5. Here, the wind direction control unit 7 includes a horizontal wind direction control unit 71 and a vertical wind direction control unit 72.

  The horizontal wind direction control unit 71 changes the direction in which the wind (warm air or cold air) from the air blowing unit 3 is directed in the horizontal direction (horizontal direction). The horizontal wind direction control unit 71 includes, for example, one or more plate-like members (right and left wind direction changing plates) long in the vertical direction and rotatable around an axis along the vertical direction. The horizontal wind direction control unit 71 changes, for example, the direction of the wind coming out of the blowout port 51 to the left, the front, and the right.

  The vertical wind direction control unit 72 changes the direction in which the wind (warm air or cold air) from the air blowing unit 3 is directed in the vertical direction (vertical direction). The vertical wind direction control unit 72 includes, for example, one or more plate-like members (vertical wind direction changing plates) which are long in the horizontal direction and can rotate around an axis along the horizontal direction. The vertical wind direction control unit 72 changes, for example, the direction of the wind coming out from the outlet 51 into three stages, upward, frontward, and downward.

  The infrared detection device 4 acquires a thermal image of the detection target range by detecting infrared rays from the detection target range. The infrared detection device 4 includes an infrared detection unit 40, a scanning unit 41, and a processing unit 42, as shown in FIG.

  As shown in FIG. 2, the infrared detection unit 40 is disposed on the front surface of the housing 5 above the outlet 51. As shown in FIG. 4, the infrared detection unit 40 is configured by a sensor module 403 including an infrared sensor 401 and a substrate 402.

  The infrared sensor 401 outputs an output signal including information indicating a thermal image of the detection target range. The infrared sensor 401 includes a plurality of infrared detection elements 400. The plurality of infrared detection elements 400 are mounted on the mounting surface of the substrate 402. The plurality of infrared detection elements 400 are arranged in a two-dimensional array. Here, as shown in FIG. 4, the infrared sensor 401 is composed of a plurality of (64) infrared detection elements 400 arranged in a matrix of 8 rows and 8 columns.

  The substrate 402 is held by the scanning unit 41 so as to be rotatable around a rotation axis C1 along the mounting surface of the infrared detection element 400. That is, the sensor module 403 can rotate around the rotation axis C1. Here, the rotation axis C1 is along the vertical direction.

  As shown in FIG. 4, the row and column in which the plurality of infrared detection elements 400 are arranged have an inclination of a predetermined angle with respect to a plane (that is, a horizontal plane) orthogonal to the rotation axis C1. That is, the rows and columns in which the plurality of infrared detection elements 400 are arranged are neither perpendicular nor parallel to the horizontal plane.

  Furthermore, the predetermined angle here is an angle adjusted such that all the central positions of the plurality of infrared detection elements 400 are different positions as viewed in the horizontal direction. In other words, each of the plurality of infrared detection elements 400 is arranged such that when it is rotated about the rotation axis C1, a virtual plane including the locus that the center passes does not overlap with the center of another infrared detection element 400. It is done.

  The sensor module 403 may include a lens that causes infrared rays to be incident on the plurality of infrared detection elements 400 of the infrared sensor 401.

  The scanning unit 41 scans the infrared detection unit 40 in a predetermined direction. Here, the scanning unit 41 causes the infrared sensor 401 to scan the detection target range by moving the infrared sensor 401 in the horizontal direction. The scanning unit 41 includes a motor 411, as shown in FIG. The motor 411 is controlled by the processing unit 42, and rotates the infrared sensor 401 (sensor module 403) in the horizontal direction around the rotation axis C1. The motor 411 is, for example, a stepping motor or a servomotor. In short, the scanning unit 41 scans the detection target range by rotating the infrared sensor 401.

  The infrared detection unit 40 can acquire a thermal image of a detection target range by being scanned in the horizontal direction by the scanning unit 41. The infrared sensor 401 is rotated (moved) by the motor 411 in the horizontal direction for each sub-pixel unit. Accordingly, the infrared sensor 401 acquires a thermal image (infrared ray) of positional deviation in units of subpixels, which is a thermal image of a detection target range, and outputs the thermal image to the image processing unit 422.

  In short, when the infrared sensor 401 (a plurality of infrared detection elements 400) is rotated (moved) around the rotation axis C1, the number of the infrared detection elements 400 in the direction parallel to the rotation axis C1 is infrared detection with the rotation axis C1. It will increase more than the number (eight) in the case of being parallel with the arrangement direction of the element 400. That is, in the infrared sensor 401 in which the arrangement direction of the infrared detection elements 400 is inclined at a predetermined angle from the plane (horizontal plane) orthogonal to the rotation axis C1, the number of pixels of the thermal image in the direction (vertical direction) parallel to the rotation axis C1 is Compared with the case where the arrangement direction of the infrared detection elements 400 is parallel to the rotation axis C1, it can be substantially increased. Thereby, the resolution in the direction (vertical direction) parallel to the rotation axis C1 can be improved.

  The motor 411 can also be used when changing the detection direction of the infrared sensor 401 separately from rotating the infrared sensor 401 in units of sub-pixels to obtain a thermal image.

  The processing unit 42 controls the scanning unit 41. Further, the processing unit 42 processes the thermal image (input image) acquired by the infrared detection unit 40. The processing unit 42 includes a device control unit 421 and an image processing unit 422.

  The device control unit 421 calculates control information for performing control of causing the scanning unit 41 to scan, and controls the scanning unit 41 in accordance with the calculated control information.

  The image processing unit 422 performs super-resolution processing on the thermal image (input image) acquired by the infrared detection unit 40, and generates a high-definition thermal image (output image) by reconstructing the thermal image (input image). Do. The image processing unit 422 outputs the generated high-definition thermal image, that is, the thermal image after the super-resolution processing.

  The thermal image is an image composed of a plurality of pixels representing the distribution of the temperature of the detection target range. The super-resolution processing is one of the resolution increasing processing capable of generating high-resolution information (output image) which does not exist in the input image. Super-resolution processing includes a processing method of obtaining one high-resolution image from a plurality of images, and a processing method using learning data. In the present embodiment, the infrared detection unit 40 is scanned by the scanning unit 41 to obtain a thermal image of a detection target range and displacement of a sub-pixel unit, that is, thermal images of different sample points. it can.

  An example of the thermal image 4000 is shown in FIG. Although the infrared sensor 401 is composed of a limited number (64) of infrared detection elements 400, the infrared detection device 4 reflects the shape of the object (person) 4001 present in the detection target area It is possible to obtain a thermal image 4000.

  The image processing unit 422 further determines the position of the heat source such as the position of the person within the detection target range, the temperature of the user's hand or face, the temperature of the wall, etc. based on the thermal image after the super-resolution processing. The thermal image data shown is acquired, and the thermal image data is output. In short, the processing unit 42 (or the control unit 10 that has received the thermal image data from the processing unit 42) can detect a person present in the target area from the output signal of the infrared sensor 401.

  Further, the image processing unit 422 analyzes the state of the room, such as the position of the person, the position of the heat source, and the thermal sensation, from the thermal image obtained by the infrared detection device 4. In short, the processing unit 42 (or the control unit 10 that has received the data of the thermal image from the processing unit 42) can estimate the human thermal sensation from the output signal of the infrared sensor 401.

  The control unit 10 includes, for example, a computer (including a microcontroller) including a processor and a memory. The computer functions as the control unit 10 by causing the processor to execute an appropriate program stored in the memory. The control unit 10 controls the operation of the determination system 2. That is, the control unit 10 controls the operation of the blower unit 3 and the infrared detection device 4.

  The control unit 10 controls the air blowing unit 3 to control on / off of the air blowing unit 3 (whether or not to send warm air or cold air from the air blowing unit 3). The control unit 10 controls the blower unit 3 to control whether the blower unit 3 sends the warm air or the cold air. The control unit 10 controls the wind direction control unit 7 (horizontal wind direction control unit 71 and vertical wind direction control unit 72) to send air from the air blowing unit 3 to the outside of the housing 5 through the air outlet 51. Control the orientation.

  The control unit 10 controls the operations of the infrared detection unit 40 and the scanning unit 41 by outputting a control signal to the processing unit 42 of the infrared detection device 4. The control unit 10 causes the infrared sensor 401 to acquire a thermal image by outputting a control signal. The control unit 10 also operates the motor 411 by outputting a control signal to control the detection direction of the infrared sensor 401 (the direction of the infrared sensor 401).

  For example, under the control of the control unit 10, the determination unit 6 determines the presence or absence of the object B1 in the target area A1 in the room 9. The determination unit 6 determines the presence / absence of the object B1 in the target area A1 in the room 9 using the thermal image acquired by the infrared detection device 4. The determination unit 6 detects the temperature of the target area A1 from the thermal image of the target area A1 acquired by the infrared detection device 4. The determination unit 6 determines the presence or absence of the object B1 in the target area A1 using the detected temperature.

  The determination unit 6 includes, for example, a computer (including a microcontroller) including a processor and a memory. The computer functions as the determination unit 6 by causing the processor to execute an appropriate program stored in the memory. The computer forming the determination unit 6 and the computer forming the control unit 10 may be the same or different.

  In the following, for convenience of description, the description that the control unit 10 performs each control is omitted.

  Such a determination system 2 performs a determination operation to determine the presence or absence of the object B1 in the target area A1 at any time. The determination operation is a system that determines an instruction signal instructing execution of the determination operation from, for example, an external remote control device (remote control) at the time when the case 5 is attached to the installation surface 90 of the room 9 or any time thereafter It takes place when 2 receives.

(1.3) Determination Operation The determination operation of the determination system 2 of the present embodiment includes the following first to fifth modes. The determination system 2 determines the presence or absence of the object B1 (B11, B12) in the target area A1 (A11, A12) using the first to fifth modes.

  Hereinafter, the first to fifth modes will be described with reference to FIGS. 6A to 10D. 6A to 10D, the dotted arrow indicates the direction of the wind (warm air or cold air) sent out from the blower 3 to the outside of the housing 5 through the air outlet 51. Moreover, in FIG. 6A-FIG. 10D, the continuous line arrow shows direction (detection direction of the infrared sensor 401) of the infrared detection part 40. Moreover, in FIG.

(1.3.1) First Mode The first mode is a mode for determining whether or not the object B1 exists in the target area A1 of the room 9.

  In the first mode, the determination system 2 operates as follows.

  First, as shown in FIG. 6A, in the pre-blowing period T0, the infrared sensor 401 is directed to the target region A1 (the region on the right side of the housing 5 in FIG. 6A), and the temperature of the target region A1 (hereinafter referred to as “blowing” Pre-blowing detection temperature information indicating “pre-detection temperature t0” is detected. At this time, the wind direction control unit 7 sets the non-target area A2 in which the wind (warm or cold) from the blower 3 is different from the target area A1 (in FIG. The direction of the wind from the blower 3 is controlled so as to be directed to the region). That is, in the period before air blowing T0, the air is not sent out from the air blowing unit 3 to the target area A1.

  Next, as shown in FIG. 6B, in the air blowing period T1 after the air blowing period T0, the air direction control unit 7 causes the wind (warm air or cold air) from the air blowing unit 3 to be directed to the target area A1. The direction of the wind from the blower 3 is controlled. At this time, the infrared sensor 401 is directed to the non-target area A2.

  Then, as shown in FIG. 6C, in the post-blowing period T2 after the blowing period T1, the infrared sensor 401 is again directed to the target area A1, and the temperature of the target area A1 (hereinafter, “post-blowing detection temperature t1” Detected air temperature information indicating that it is called). At this time, the wind direction control unit 7 controls the direction of the wind from the blowing unit 3 so that the wind from the blowing unit 3 is directed to the non-target area A2. That is, in the post-blowing period T2, the wind is not sent out from the blower section 3 to the target area A1.

  The determination unit 6 uses the comparison result between the temperature indicated by the pre-blowing detection temperature information (pre-blowing detection temperature t0) and the temperature indicated by the post-blowing detection temperature information (post-blowing detection temperature t1) to determine the object B1 in the target area A1. Determine the presence or absence of

  Specifically, when the warm air is sent from the blower unit 3 to the determination unit 6 and the detected temperature after blowing t1 is higher than the detected temperature before blowing by the threshold temperature or more, the object area A1 is detected. It is determined that B1 exists. That is, when the object B1 exists in the target area A1, when the warm air is sent to the target area A1, the heat of the warm air is absorbed by the object B1, and the temperature of the object B1 rises. Therefore, the temperature of the target area A1 detected in the post-blowing period T2 (post-blowing detection temperature t1) is higher than the temperature of the target area A1 detected in the pre-blowing period T0 (pre-blowing detection temperature t0). Therefore, the determination unit 6 can determine the presence or absence of the object B1 in the target area A1 by comparing the detection temperature before blowing t0 with the detection temperature after blowing t1.

  Further, in the determination unit 6, cold air is sent from the blower unit 3, and when the after-blowing detection temperature t1 is lower than the before-blowing detection temperature t0 by the threshold temperature or more, it is assumed that the object B1 exists in the target area A1. judge. That is, when the object B1 exists in the target area A1, when cold air is sent to the target area A1, cold heat of the cold air is absorbed by the object B1, and the temperature of the object B1 decreases. Therefore, the temperature of the target area A1 detected in the post-blowing period T2 (post-blowing detection temperature t1) is lower than the temperature of the target area A1 detected in the pre-blowing period T0 (pre-blowing detection temperature t0). Therefore, the determination unit 6 can determine the presence or absence of an object in the target area A1 by comparing the detection temperature before blowing t0 with the detection temperature after blowing t1.

  In short, if the magnitude of the difference between the pre-blowing detection temperature t0 and the post-blowing detection temperature t1 (hereinafter referred to as “difference temperature Δt1”) is equal to or greater than the threshold temperature, the determination unit 6 sets the object in the target area A1. It is determined that B1 exists. The determination unit 6 can determine the presence or absence of an object in the target area A1 by comparing the magnitude of the difference temperature Δt1 with the threshold temperature.

  The threshold temperature is appropriately set with the length of the air blowing period T1, the temperature of the air (warm air or cold air) sent from the air blowing unit 3, the indoor temperature of the room 9, the outdoor temperature of the room 9, etc. . The threshold temperature in the case of using warm air and the threshold temperature in the case of using cold air may be the same or different.

(1.3.2) Second Mode The second mode is a mode for determining whether or not the object B1 exists in the target area A1 of the room 9, as in the first mode.

  In the second mode, the determination system 2 operates as follows.

  First, as shown in FIG. 7A, in the air blowing period T1, the air direction control unit 7 causes the air (warm air or cold air) from the air blowing unit 3 to be a region to the right of the target area A1 (in FIG. 7A, the housing 5). The direction of the wind from the blower 3 is controlled so as to be directed to the direction. At this time, the infrared sensor 401 is directed to a non-target area A2 different from the target area A1 (in FIG. 7A, a front surface of the housing 5 or a region to the left of the housing 5).

  Next, as shown in FIG. 7B, in the post-blowing period T2 after the blowing period T1, the infrared sensor 401 is directed to the target area A1 and the post-blowing detection indicating the temperature of the target area A1 (post-blowing detection temperature t1) Detect temperature information. Further, in the post-blowing period T2, the wind direction control unit 7 controls the direction of the wind from the blowing unit 3 so that the wind from the blowing unit 3 is directed to the non-target area A2.

  Here, in the post-blowing period T2, the infrared sensor 401 detects a temporal change of the temperature of the target area A1. That is, the post-blowing detection temperature information includes temporal change of the temperature of the target area A1 (post-blowing detection temperature t1) detected by the infrared sensor 401 in the post-blowing period T2.

  The determination unit 6 determines the presence or absence of the object B1 in the target area A1 using the detected temperature information after blowing (the change with time of the detected temperature t1 after blowing).

  Specifically, the determination unit 6 is supplied with warm air from the blower unit 3, and the temperature at the start of the after-blowing period T2 is a predetermined threshold temperature more than the temperature at the end of the after-blowing period T2. When it is higher than the above, it is determined that the object B1 exists in the target area A1. That is, when the object B1 exists in the target area A1, when the warm air is sent to the target area A1 in the blowing period T1, the heat of the warm air is absorbed by the object B1, and the temperature of the object B1 rises. Thereafter, when the supply of the warm air from the blower unit 3 is stopped, the temperature of the object B1 gradually decreases by releasing the heat to the surroundings. Therefore, the temperature of the target area A1 at the start of the post-blowing period T2 is higher than the temperature of the target area A1 at the end of the post-blowing period T2. Therefore, the determination unit 6 can determine the presence or absence of an object in the target area A1 using the temporal change of the temperature of the target area A1 (post-blast detection temperature t1) in the post-blowing period T2.

  In addition, when the cool air is sent from the blower 3 and the temperature at the start of the after-blowing period T2 is lower than the temperature at the end of the after-blowing period T2 by the predetermined threshold temperature or more. It is determined that the object B1 exists in the target area A1. That is, when the object B1 exists in the target area A1, when cold air is sent to the target area A1 in the air blowing period T1, cold heat of the cold air is absorbed by the object B1, and the temperature of the object B1 decreases. Thereafter, when the supply of the cold air from the blower unit 3 is stopped, the temperature of the object B1 gradually rises by taking heat from the surroundings. Therefore, the temperature of the target area A1 at the start of the post-blowing period T2 is lower than the temperature of the target area A1 at the end of the post-blowing period T2. Therefore, the determination unit 6 can determine the presence or absence of an object in the target area A1 using the temporal change of the temperature of the target area A1 (post-blast detection temperature t1) in the post-blowing period T2.

  In short, the determination unit 6 determines that the difference between the temperature at the start of the post-blowing period T2 and the temperature at the end of the post-blowing period T2 (hereinafter referred to as “change temperature Δt2”) is equal to or greater than the threshold temperature In this case, it is determined that the object B1 exists in the target area A1. The determination unit 6 can determine the presence or absence of an object in the target area A1 by comparing the magnitude of the change temperature Δt2 with the threshold temperature.

  The threshold temperature is appropriately set using the length of the after-blowing period T2, the temperature of the air sent from the blower 3, the indoor temperature of the room 9, the outdoor temperature of the room 9, etc. as parameters. The threshold temperature in the case of using warm air and the threshold temperature in the case of using cold air may be the same or different.

(1.3.3) Third Mode The third mode is an object B11 in at least one of the first target area A11 and the second target area A12 (area different from the first target area A11) in the room 9. This is a mode to determine the presence or absence of B12. The third mode includes a first before-blow period T01, a first after-blow period T11, a first after-blow period T21, a second before-blow period T02, a second after-blow period T12, and a second after-blower period T22 in this order.

  In the third mode, the determination system 2 operates as follows.

  First, as shown in FIG. 8A, in the first pre-blow period T01, the infrared sensor 401 is directed to the first target area A11 (the area on the right side of the housing 5 in FIG. 8A). The first pre-blow detection temperature information (first data) indicating the temperature (hereinafter, referred to as “first pre-blow detection temperature t01”) is detected. At this time, the wind direction control unit 7 controls the first non-target area A21 (in FIG. 8A, the front or the housing 5 of the housing 5) in which the wind (warm or cold) from the blower 3 is different from the first target area A11. The direction of the wind from the blower unit 3 is controlled so as to be directed to the region on the left side). That is, in the first period before the second air blowing, the air is not sent out from the air blowing unit 3 to the first target area A11.

  Next, as shown in FIG. 8B, in the first air blowing period T11, the air direction control unit 7 causes the air blowing portion 3 to direct the wind (warm air or cold air) from the air blowing portion 3 to the first target area A11. Control the direction of the wind from At this time, the infrared sensor 401 is directed to the first non-target area A21.

  Next, as shown in FIG. 8C, in the first after-blowing period T21, the infrared sensor 401 is again directed to the first target region A11, and the temperature of the first target region A11 (hereinafter, “detected temperature after first blowing” The first detected temperature information after second air (second data) indicating “t11” is detected. At this time, the wind direction control unit 7 controls the direction of the wind from the blowing unit 3 so that the wind from the blowing unit 3 is directed to the first non-target area A21. That is, in the first after-blow period T21, the air is not sent out from the air blower 3 to the first target area A11. In the first after-blow period T21, the wind direction control unit 7 is preferably controlled so that the wind from the blowing unit 3 does not go to the second target area A12 (described later).

  Next, as shown in FIG. 8D, in the second pre-blow period T02, the infrared sensor 401 is directed to the second target area A12 (an area on the left side of the housing 5 in FIG. 8D), and the second target area A12. The second pre-blower detection temperature information (third data) indicating the second temperature (hereinafter, referred to as “second second pre-blast detection temperature t02”) is detected. At this time, the wind direction control unit 7 causes the second non-target area A22 (in FIG. 8D, the front of the housing 5 or the housing 5) in which the wind (warm or cold) from the blower 3 is different from the second target area A12. The direction of the wind from the blower unit 3 is controlled so as to be directed to the area on the right side). That is, in the second period before the second air blowing, the air is not sent out from the air blowing unit 3 to the second target area A12.

  Next, as shown in FIG. 8E, in the second air blowing period T12, the air direction control unit 7 causes the air blowing portion 3 to direct the wind (warm air or cold air) from the air blowing portion 3 to the second target area A12. Control the direction of the wind from At this time, the infrared sensor 401 is directed to the second non-target area A22.

  Then, as shown in FIG. 8F, in the second after-blow period T22, the infrared sensor 401 is again directed to the second target area A12, and the temperature of the second target area A12 (hereinafter, “second after-blow detection temperature t12 Detection temperature information (fourth data) after the second air blowing. At this time, the wind direction control unit 7 controls the direction of the wind from the blowing unit 3 so that the wind from the blowing unit 3 is directed to the second non-target area A22. That is, in the second after-blow period T22, the wind is not sent out from the blower unit 3 to the second target area A12.

  The determination unit 6 uses at least the first after-air detection temperature information and the second after-air detection temperature information (the first after-air detection temperature t11 and the second after-air detection temperature 12), the first target area A11 and the second It is determined whether or not there are objects B11 and B12 in at least one of the target area A12.

  For example, the determination unit 6 compares the threshold temperature with the magnitude of the difference between the first before-air detection temperature t01 and the first after-air detection temperature t11 (hereinafter, referred to as “first difference temperature Δt11”). When the magnitude of the first difference temperature Δt11 is equal to or greater than the threshold temperature, the determination unit 6 determines that the object B11 is present in the first target area A11. The determination unit 6 compares, for example, the magnitude of the difference between the second pre-blower detection temperature t02 and the second after-blower detection temperature t12 (hereinafter, referred to as “second difference temperature Δt12”) and the threshold temperature. When the magnitude of the second difference temperature Δt12 is equal to or higher than the threshold temperature, the determination unit 6 determines that the object B12 is present in the second target area A12.

  In addition, the determination unit 6 exists in the first distance to the object B11 in the first target area A11 and in the second target area A12 using the comparison result of the first difference temperature Δt11 and the second difference temperature Δt12. The relationship with the second distance to the object B12 is determined. Specifically, when the magnitude of the first difference temperature Δt11 is larger than the magnitude of the second difference temperature Δt12, the determination unit 6 determines that the first distance is closer than the second distance. . The first distance is a distance from the outlet 51 of the housing 5 to the object B11 present in the first target area A11. Further, the second distance is the distance from the outlet 51 of the housing 5 to the object B12 present in the second target area A12.

  Here, if the determination result of the third mode is used, it is possible to determine the attachment position of the housing 5 on the installation surface 90 of the room 9.

  For example, as shown in FIGS. 8A to 8F, in the room 9, the first target area A11 and the second target area A12 are an area on the right and an area on the left with respect to the normal direction of the front surface of the housing 5. It is assumed that the room 9 has no object other than the wall. In this case, the first distance corresponds to the distance from the housing 5 to the right wall 91 of the room 9, and the second distance corresponds to the distance from the housing 5 to the left wall 92 of the room 9. Therefore, it is possible to determine which of the first distance to the right wall 91 and the second distance to the left wall 92 is smaller by comparing the first difference temperature Δt11 and the second difference temperature Δt12. It is. That is, the determination unit 6 can determine the installation position of the housing 5 (in the installation surface 90 of the room 9, whether it is a position close to the right wall 91 or a position close to the left wall 92). That is, from the difference between the first data and the second data, and the difference between the third data and the fourth data, the determination unit 6 determines the horizontal direction of the room 9 of the determination system 2 (housing 5). Can determine the installation position.

  When the first target area A11 and the second target area A12 are set as upper areas and lower areas with respect to the normal direction of the front surface of the housing 5 in the room 9, the housing 5 is It is also possible to determine whether they are arranged near the ceiling of the room 9 or near the floor.

(1.3.4) Fourth Mode In the fourth mode, as in the third mode, the presence or absence of the objects B11 and B12 in at least one of the first target area A11 and the second target area A12 in the room 9 Is a mode for determining The fourth mode has a pre-blowing period T0, a first blowing period T11, a first post-blowing period T21, a second blowing period T12, and a second post-blowing period T22 in this order.

  In the fourth mode, the determination system 2 operates as follows.

  First, as shown in FIG. 9A, in the pre-blowing period T0, the infrared sensor 401 is directed to the first target area A11 (the area on the right side of the housing 5 in FIG. 9A), and the temperature of the first target area A11 ( The first pre-blower detection temperature information (first data) indicating the first pre-blower detection temperature t01) is detected. Further, in the pre-blowing period T0, the infrared sensor 401 is directed to the second target region A12 (the region on the left side of the housing 5 in FIG. 9A), and the temperature of the second target region A12 (second pre-blowing detection temperature t02) The second pre-blowing detected temperature information (first data) indicating. At this time, the wind direction control unit 7 sets the non-target area A20 (in FIG. 9A, the front surface of the housing 5) in which the wind (warm or cold) from the blower 3 is different from the first target area A11 and the second target area A12. The direction of the wind from the blower 3 is controlled to be directed to the region That is, in the period before air blowing T0, the air is not sent out from the air blowing unit 3 to the first object area A11 or the second object area A12.

  In this mode, the infrared sensor 401 detects the temperatures of the plurality of target areas (A11 and A12) in the pre-blowing period (T0). In the pre-blowing period T0, the timing at which the infrared sensor 401 detects the first pre-blowing detection temperature information and the second pre-blowing detection temperature information (the first pre-blowing detection temperature t01 and the second pre-blowing detection temperature t02). May be simultaneous or different. For example, in the pre-blowing period T0, the infrared sensor 401 may detect the second pre-blowing detection temperature t02 after detecting the first pre-blowing detection temperature t01, or vice versa.

  Next, as shown in FIG. 9B, in the first air blowing period T11, the air direction control unit 7 causes the air blowing portion 3 to direct the wind (warm air or cold air) from the air blowing portion 3 to the first target area A11. Control the direction of the wind from At this time, the infrared sensor 401 is directed to the non-target area A20 or the second target area A12 (here, to the non-target area A20).

  Next, as shown in FIG. 9C, in the first after-blow period T21, the infrared sensor 401 is directed to the first target area A11, and the temperature of the first target area A11 (first after-blow detection temperature t11) is indicated. 1 Detecting temperature information (second data) after air blowing. At this time, the wind direction control unit 7 controls the direction of the wind from the blowing unit 3 so that the wind from the blowing unit 3 is directed to the non-target area A20 or the second target area A12. In the first after-blow period T21, the wind direction control unit 7 is preferably controlled so that the wind from the blower 3 is directed to the second target area A12.

  Next, as shown in FIG. 9D, in the second air blowing period T12, the air direction control unit 7 causes the air blowing portion 3 to direct the wind (warm air or cold air) from the air blowing portion 3 to the second target area A12. Control the direction of the wind from At this time, the infrared sensor 401 is directed to the non-target area A20 or the first target area A11 (here, to the non-target area A20).

  Then, as shown in FIG. 9E, in the second after-blow period T22, the infrared sensor 401 is directed to the second target area A12, and the second target area A12 temperature (second after-blow detection temperature t12) is indicated. The post-blowing detected temperature information (third data) is detected. At this time, the wind direction control unit 7 instructs the wind from the blower 3 so that the wind from the blower 3 is directed to the non-target area A20 or the first target area A11 (here, to the non-target area A20). Control.

  The determination operation of the determination unit 6 in the fourth mode is the same as that in the third mode, and thus the description thereof is omitted. In the fourth mode, from the difference between the first data and the second data and the difference between the first data and the third data, the installation position in the left-right direction in the room 9 of the determination system 2 (housing 5) Can judge.

  When the wind (warm air or cold air) from the blower unit 3 is controlled to be directed to the second target region A12 in the first after-blow period T21, the second blower period T12 can be omitted. In this case, during the first after-blow period T21 (a period during which the infrared sensor 401 detects the first after-blow detection temperature t11), the second blower period T12 (the blower 3 blows toward the second target area A12). Period) and overlapping period.

(1.3.5) Fifth Mode In the fifth mode, as in the third mode, the presence or absence of objects B11 and B12 in at least one of the first target area A11 and the second target area A12 in the room 9 Is a mode for determining The fifth mode has a first air blowing period T11, a first air blowing after period T21, a second air blowing period T12, and a second air blowing after period T22 in this order.

  In the fifth mode, the determination system 2 operates as follows.

  First, as shown in FIG. 10A, in the first air blowing period T11, the air direction control unit 7 causes the air from the air blowing unit 3 (warm air or cold air) to flow from the first target area A11 (in FIG. The direction of the wind from the blower 3 is controlled so as to be directed to the area on the right side. At this time, the infrared sensor 401 is located in the non-target area A20 (the front area of the housing 5 in FIG. 10A) or the second target area A12 (the left side of the housing 5 in FIG. 10A) (here, A non-target area A20) is directed.

  Next, as shown in FIG. 10B, in the first after-blow period T21, the infrared sensor 401 is directed to the first target area A11, and the temperature of the first target area A11 (first after-blow detection temperature t11) is indicated. 1) Detect the detected temperature information after blowing. Furthermore, in the first after-blow period T21, the wind direction control unit 7 controls the direction of the wind from the blower 3 so that the wind from the blower 3 is directed to the non-target area A20 or the second target area A12. .

  Here, in the first after-blow period T21, the infrared sensor 401 detects a temporal change in the temperature of the first target area A11. That is, the first after-blow detection temperature information includes temporal change of the temperature of the first target area A11 (first after-blow detection temperature t11) detected by the infrared sensor 401 in the first after-blow period T21.

  Next, as shown in FIG. 10C, in the second air blowing period T12, the air direction control unit 7 causes the air blowing portion 3 to direct the wind (warm air or cold air) from the air blowing portion 3 to the second target area A12. Control the direction of the wind from At this time, the infrared sensor 401 is directed to the non-target area A20 or the first target area A11 (here, to the non-target area A20).

  Then, as shown in FIG. 10D, in the second after-blow period T22, the infrared sensor 401 is directed to the second target region A12, and the second target region A12 temperature (second after-blow detection temperature t12) is indicated. Detects detected temperature information after blowing. Also, in the second after-blow period T22, the wind direction control unit 7 controls the direction of the wind from the blower 3 so that the wind from the blower 3 is directed to the non-target area A20 or the first target area A11. .

  Here, in the second after-blow period T22, the infrared sensor 401 detects a change with time of the temperature of the second target area A12. That is, the second post-blower detection temperature information includes temporal change of the temperature of the second target area A12 (second post-blow detection temperature t12) detected by the infrared sensor 401 in the second post-blow period T22.

  The determination unit 6 uses at least the first detected temperature information after blowing and the second detected temperature information after blowing (the temporal change of the detected temperature t11 after first blowing and the temporal change of the detected temperature 12 after second blowing). It is determined whether or not the objects B11 and B12 exist in at least one of the target area A11 and the second target area A12.

  For example, the determination unit 6 determines the difference between the temperature at the start of the first after-blow period T21 and the temperature at the end of the first after-blow period T21 (hereinafter referred to as “first change temperature Δt21”) and the threshold temperature. Compare When the magnitude of the first change temperature Δt21 is equal to or higher than the threshold temperature, the determination unit 6 determines that the object B11 is present in the first target area A11. For example, the determination unit 6 determines the difference between the temperature at the start of the second after-blow period T22 and the temperature at the end of the second after-blow period T22 (hereinafter referred to as “second change temperature Δt22”) and the threshold temperature. Compare When the magnitude of the second change temperature Δt22 is equal to or higher than the threshold temperature, the determination unit 6 determines that the object B12 is present in the second target area A12.

  Further, the determination unit 6 exists in the first distance to the object B11 in the first target area A11 and in the second target area A12 using the comparison result of the first change temperature Δt21 and the second change temperature Δt22. The relationship with the second distance to the object B12 is determined. Specifically, when the magnitude of the first change temperature Δt21 is larger than the magnitude of the second change temperature Δt22, the determination unit 6 determines that the first distance is closer than the second distance. .

  If the determination result of the fifth mode is used, as in the case of the third mode, it is possible to determine the attachment positions (left and right positions and upper and lower positions) of the housing 5 on the installation surface 90 of the room 9.

  In addition, in the case where the wind from the blower unit 3 is controlled to be directed to the second target region A12 in the first after-blow period T21, the second blower period T12 can be omitted. In this case, during the first after-blow period T21 (a period during which the infrared sensor 401 detects the first after-blow detection temperature information), the second blower period T12 (the blower 3 blows toward the second target area A12). Period) and overlapping period.

  As described above, by operating in any of the first to fifth modes, the determination system 2 determines the object B1 (B11, B11) in the target area A (the first target area A11, the second target area A12). It is possible to determine the presence or absence of and the mounting position in the room 9 of the housing 5.

  The control unit 10 preferably controls the blower unit 3 and the wind direction control unit 7 based on the mounting position in the room 9 of the housing 5 determined by the above determination operation. For example, when the control unit 10 determines that the housing 5 is disposed at a position close to the right wall 91 of the room 9, the time during which the wind from the blowing unit 3 is blown toward the left side of the housing 5 The wind direction control unit 7 is controlled so as to be longer. That is, the control unit 10 tilts the left and right wind direction control plate so that the longitudinal direction of the left and right wind direction control plate faces the left front.

  Moreover, it is preferable that the control part 10 controls the ventilation part 3 and the wind direction control part 7 based on the presence or absence of object B1 in the object area | region A determined by determination operation | movement. For example, when it is determined that the object B1 is present in the target area A, the control unit 10 may control the wind direction control unit so that the time when the wind from the blower 3 is blown toward the area other than the target area A is longer. Control 7

  As described above, the control unit 10 controls the blower unit 3 and the wind direction control unit 7 based on the result of the determination operation to effectively heat or cool the room 9 by the warm air or the cold air from the blower unit 3. It becomes possible.

  The control unit 10 may also control the blower unit 3 and the wind direction control unit 7 by further using the position of a person (user) obtained based on the thermal image data, the wall temperature, the thermal sensation, and the like. Good.

(2) Modifications The above-described embodiment is only one of the various embodiments of the present disclosure. The above-mentioned embodiment can be variously changed according to design etc. if the object of the present disclosure can be achieved. Further, the same function as that of the determination system 2 may be embodied by a determination method, a computer program, or a recording medium recording the program.

  The determination method according to one aspect includes sending warm air or cold air toward the target area A1 in the air blowing period T1, and air blowing indicating the temperature of the target area A1 in the after air blowing period T2, which is a period after the air blowing period T1. Detecting the post-detection temperature information, and determining the presence / absence of the object B1 in the target area A1 using at least the post-blowing detection temperature information.

  A program according to an aspect is a program for causing one or more processors to execute the above determination method.

  The determination system 2 and the air conditioning system 1 in the present disclosure include, for example, a computer system in the control unit 10, the determination unit 6, and the like. The computer system mainly includes a processor and memory as hardware. The functions of the control unit 10 and the determination unit 6 in the present disclosure are realized by the processor executing the program stored in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, but may be provided through a telecommunication line, and is a non-transitory recording medium such as a memory card readable by the computer system, an optical disc, a hard disk drive, etc. It may be recorded and provided. A processor of a computer system is configured of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The term “integrated circuit such as IC or LSI” as used herein varies depending on the degree of integration, and includes integrated circuits called system LSI, very large scale integration (VLSI), or ultra large scale integration (ULSI). Furthermore, a logic device that can be reconfigured after fabrication of the LSI and that can reconfigure the bonding relation inside the FPGA or the LSI or reconfigure the circuit section inside the LSI can also be adopted as the processor. The plurality of electronic circuits may be integrated into one chip or may be distributed to a plurality of chips. The plurality of chips may be integrated into one device or may be distributed to a plurality of devices. A computer system as referred to herein includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also configured with one or more electronic circuits including a semiconductor integrated circuit or a large scale integrated circuit.

  In one variation, the air conditioning system 1 may be configured such that the blower unit 3 and the infrared detection device 4 are held (or accommodated) in the portable case 5. The determination unit 6 and the control unit 10 may be held (or accommodated) in the housing 5. Alternatively, the determination unit 6 and the control unit 10 are disposed outside the housing 5 and configured to be communicable with the communication unit provided in the housing 5, and the blower unit 3 and the infrared detection device 4 via the communication unit. You may exchange signals.

  In one modification, the installation surface 90 to which the housing 5 is attached is not limited to the wall surface of the room 9, and may be a ceiling or a floor.

  The air conditioning system 1 (determination system 2) is not limited to the configuration including the heat pump type heat source unit. In one modification, the air conditioning system 1 may have a configuration in which hot or cold water is passed through a plurality of fan coil units. When only heating is performed, the air conditioning system 1 may be configured to pass steam or hot water through a radiator.

  In one variation, the determination system 2 performs the pre-blowing period T0 (the first pre-blowing period T01, the second pre-blowing period T02) and the post-blowing period T2 (the first post-blowing period T21, the second post-blowing period T22). The air blowing from the air blowing unit 3 may be stopped.

  In one variation, the first to fifth modes may be combined as appropriate. For example, by combining the first mode and the second mode, the determination unit 6 may determine the presence or absence of the object B1 in the target area A1 using both the difference temperature Δt1 and the change temperature Δt2. Further, the determination system 2 does not have to perform all of the first to fifth modes. The determination operation is not limited to the first to fifth modes.

(Summary)
The following aspects are disclosed from the embodiment and modifications described above.

  The determination system (2) according to the first aspect includes a blower (3), an infrared sensor (401), and a determination unit (6). The blower (3) sends hot air or cold air toward the target area (A1) during the air blowing period (T1). The infrared sensor (401) detects post-blowing detection temperature information indicating the temperature of the target area (A1) (post-blowing detection temperature t1) in the post-blowing period (T2), which is a period after the blowing period (T1). The determination unit (6) determines the presence or absence of the object (B1) in the target area (A1) using at least the detected temperature information after blowing.

  According to this aspect, when there is an object (B1) in the target area (A1), the detected temperature after blowing (t1) greatly changes from the ambient temperature as compared to the case where there is no object in the target area (A1) . Thus, the determination unit (6) can determine the presence or absence of the object (B1) in the target area (A1). In addition, when the infrared sensor (401) detects the detected temperature information after air blowing, the air (hot air and cold air) is not sent from the air blower (3) to the target area (A1). t1) is not easily affected by the thermal noise caused by the wind sent from the blower (3). Therefore, according to this aspect, it is possible to suppress the decrease in the detection accuracy of the temperature (the detected temperature after blowing t1).

  In the determination system (2) according to the second aspect, in the first aspect, the infrared sensor (401) is a target area (A1) in the pre-blowing period (T0) which is a period before the blowing period (T1). The pre-blowing detected temperature information indicating the temperature (the pre-blowing detected temperature t0) is further detected. The determination unit (6) uses the comparison result of the temperature indicated by the pre-blowing detection temperature information (pre-blowing detection temperature t0) and the temperature indicated by the post-blowing detection temperature information (post-blowing detection temperature t1). The presence or absence of the object (B1) in.

  According to this aspect, it is possible to determine the presence or absence of the object (B1) in the target area (A1) using the comparison result of the temperature before air blowing (t0) and the temperature after air blowing (t1). In addition, it is possible to suppress a decrease in detection accuracy of the temperature (the detection temperature before blowing t0 and the detection temperature after blowing t1).

  In the determination system (2) according to the third aspect, in the first or second aspect, the post-blowing detection temperature information is detected by the infrared sensor (401) in the post-blowing period (T2), the target area (A1) Time-varying change of the temperature (the detected temperature t1 after blowing).

  According to this aspect, it is possible to determine the presence or absence of the object (B1) in the target area (A1) using the temporal change of the detected temperature after blowing (t1).

  In the determination system (2) according to the fourth aspect, in any one of the first to third aspects, the blower (3) controls a direction of wind sent from the blower (3). (7) is provided. The wind direction control unit (7) blows air from the blowing unit (3) toward the non-target area (A2) different from the target area (A1) in the post-blowing period (T2).

  According to this aspect, while the warm air or the cold air is sent toward the non-target area (A0) in the post-blowing period (T2), the temperature of the target area (A1) (the post-blowing detection temperature t1) is detected. Also, heating or cooling (air conditioning) can be performed in a room (9) or the like in which the determination system (2) is provided.

  In the determination system (2) according to the fifth aspect, in the fourth aspect, the wind direction control unit (7) controls the target area (A1) in the pre-blowing period (T0) which is a period before the blowing period (T1). Air from the blower (3) toward the non-target area (A2) different from the above.

  According to this aspect, the determination system (2) can be performed while detecting the temperature of the target area (A1) by sending warm air or cold air toward the non-target area (A0) in the pre-blowing period (T0). It is possible to perform heating or cooling (air conditioning) of a room (9) or the like in which is provided.

  In the determination system (2) according to the sixth aspect, in the second aspect, the target area (A1) includes a plurality of target areas (A11, A12). The infrared sensor (401) detects the temperatures of the plurality of target areas (A11 and A12) in at least one of the pre-blowing period (T0) and the post-blowing period (T2).

  According to this aspect, it is possible to shorten the time required for the determination operation.

  In the determination system (2) according to the seventh aspect, in the first aspect, the target area (A1) is a first target area (A11) and a second target area (A11) different from the first target area (A11) A12) and. The air blowing period (T1) includes a first air blowing period (T11) and a second air blowing period (T12) different from the first air blowing period (T11). The first air blowing period (T11) is a period in which the air blowing unit (3) blows air toward the first target area (A11). The second air blowing period (T12) is a period in which the air blowing unit (3) blows air toward the second target area (A12). The post-blowing period (T2) is a period different from the first post-blowing period (T21), which is a period after the first blowing period (T11), and the first post-blowing period (T21), and a second blowing period And a second after-blow period (T22) which is a period after (T12). The infrared sensor (401) detects first after-blow detection temperature information indicating a temperature of the first target area (A11) (first after-blow detection temperature t11) in the first after-blow period (T21). The infrared sensor (401) detects second after-blow detection temperature information indicating the temperature of the second target area (A12) (the second after-air detection temperature t12) in the second after-air blowing period (T22). The determination unit (6) uses at least the first after-air detection temperature information and the second after-air detection temperature information to detect an object in at least one of the first object area (A11) and the second object area (A12). It is determined whether (B11, B12) is present.

  According to this aspect, it is possible to determine the presence or absence of the object (B11, B12) in at least one of the first target area (A11) and the second target area (A12).

  The determination system (2) according to the eighth aspect is the seventh aspect, wherein the infrared sensor (401) is a first target area in a first pre-blowing period (T01) before the first blowing period (T11). The first pre-blow detection temperature information indicating the temperature of (A11) (the first pre-blower detection temperature t01) is detected. In the first air blowing period (T11), the air blowing unit (3) blows air toward the first target area (A11). In the first after-blow period (T21), the infrared sensor (401) detects first after-blow detection temperature information. The infrared sensor (401) detects the temperature (A12) of the second target area (A12) in the second pre-fan period (T02) after the first post-fan period (T21) and before the second fan period (T12). The second pre-blower detection temperature information indicating the second pre-blower detection temperature t02) is detected. In the second air blowing period (T12), the air blowing unit (3) blows air toward the second target area (A12). In the second after-blow period (T22), the infrared sensor (401) detects second after-blow detection temperature information. The determination unit (6) compares the temperature indicated by the first detected temperature before blowing (the first detected temperature before t01) and the temperature indicated by the detected temperature after first blowing (the first detected temperature after t11). And the second temperature before the second detection detected by the second temperature detection information (second temperature before the second detection temperature t02) and the second temperature after the second detection after the second temperature detection (second temperature after the second detection temperature t12) The relationship between the first distance to the object (B11) present in one target area (A11) and the second distance to the object (B12) present in the second target area (A12) is determined.

  According to this aspect, it is possible to determine the relationship between the first distance and the second distance. Moreover, when the case (5) of the determination system (2) is provided in a room (9) surrounded by a wall, two directions (the direction of the first target area A11, the direction of the second target area A12) ), It is possible to determine the relationship of the distance to the wall. That is, it is possible to determine the mounting position (installation position) in the room (9) of the housing (5).

  In the determination system (2) according to the ninth aspect, in the seventh aspect, the infrared sensor (401) includes a first target area (A11) in the pre-fan period (T0) before the first fan period (T11). ) First detected temperature information indicating the first detected temperature before air blowing t01, and a second detected temperature before air blowing indicating the temperature of the second target area (A12) (second detected temperature before air blowing t02) Detect information. In the first air blowing period (T11), the air blowing unit (3) blows air toward the first target area (A11). In the first after-blow period (T21), the infrared sensor (401) detects first after-blow detection temperature information. In the second air blowing period (T12) after the first air blowing period (T21), the air blowing unit (3) blows air toward the second target area (A12). In the second after-blow period (T22), the infrared sensor (401) detects second after-blow detection temperature information. The determination unit (6) compares the temperature indicated by the first detected temperature before blowing (the first detected temperature before t01) with the temperature indicated by the detected temperature after first blowing (the first detected temperature after t11). Using the result and the comparison result of the temperature indicated by the second pre-blast detection temperature information (second pre-blast detection temperature t02) and the temperature indicated by the second post-blast detection temperature information (second post-blast detection temperature t12), The relationship between the first distance to the object (B11) present in the first target area (A11) and the second distance to the object (B11) present in the second target area (A12) is determined.

  According to this aspect, it is possible to determine the relationship between the first distance and the second distance. Moreover, when the case (5) of the determination system (2) is provided in a room (9) surrounded by a wall, two directions (the direction of the first target area A11, the direction of the second target area A12) ), It is possible to determine the relationship of the distance to the wall. That is, it is possible to determine the mounting position (installation position) in the room (9) of the housing (5).

  In the seventh aspect, the determination system (2) according to the tenth aspect is an overlapping period in which the second air blowing period (T12) and the first air after air blowing period (T21) overlap. In the first air blowing period (T11), the air blowing unit (3) blows air toward the first target area (A11). In the overlapping period after the first air blowing period (T11), the air blowing unit (3) blows air toward the second target area (A12), and the infrared sensor (401) detects the first temperature detection information after air blowing. . In a second after-blow period (T22) after the overlapping period, the infrared sensor (401) detects second after-blower detection temperature information.

  According to this aspect, it is possible to shorten the time required for the determination operation.

  In the determination system (2) according to the eleventh aspect, in any one of the first to tenth aspects, the blower (3) is configured to direct the wind from the blower (3) along the horizontal direction. A horizontal wind direction control unit (71) to be changed is provided.

  According to this aspect, it is possible to determine the presence or absence of the object (B1) by setting different positions in the horizontal direction as the target area (A1).

  In the determination system (2) according to the twelfth aspect, in any one of the first to eleventh aspects, the blower (3) changes the direction in which the wind from the blower is directed in the vertical direction. A vertical wind direction control unit (72) is provided.

  According to this aspect, it is possible to determine the presence or absence of the object (B1) by setting different positions in the vertical direction as the target region (A1).

  In the determination system (2) according to the thirteenth aspect, in any one of the first to twelfth aspects, the infrared sensor (401) includes a plurality of infrared detection elements (400).

  According to this aspect, it is possible to detect infrared rays from a plurality of positions in the target area (A1).

  In the determination system (2) according to the fourteenth aspect, in the thirteenth aspect, the plurality of infrared detection elements (400) are arranged in a two-dimensional array.

  According to this aspect, it is possible to acquire a two-dimensional image of the target area (A1).

  In the fourteenth aspect, the determination system (2) according to the fifteenth aspect further includes a scanning unit (41) configured to scan the target area (A1) by rotating the infrared sensor (401).

  According to this aspect, for example, a high resolution image can be obtained by rotating the infrared sensor (401) for each sub-pixel unit position by the scanning unit (41).

  In the fifteenth aspect, the determination system (2) according to the sixteenth aspect further includes a processing unit (42) configured to detect a person present in the target area (A1) from the output signal of the infrared sensor (401).

  According to this aspect, it is possible to detect a person present in the target area (A1), and for example, it is possible to control the blower (3) according to the presence or absence of the person.

  In the sixteenth aspect, the determination system (2) according to the seventeenth aspect estimates the thermal sensation of a person from the output signal of the infrared sensor (401).

  According to this aspect, it is possible to estimate the thermal sensation of the person present in the target area (A1), and, for example, controlling the blower unit (3) according to the estimated thermal sensation of the person. It becomes possible.

  An air conditioning system (1) according to an eighteenth aspect includes the air blower (3) based on the determination result of the determination system (2) according to any one of the first to seventeenth aspects and the determination part (6). And a control unit (10) for controlling.

  According to this aspect, it is possible to control the operation of the blower (3) based on the determination result of the presence or absence of the object (B1) by the determination system (2). For example, the blower (3) (9) can be effectively heated or cooled.

  The determination method according to the nineteenth aspect includes sending warm air or cold air toward the target area (A1) during the air blowing period (T1), and an after-air blowing period (T2) that is a period after the air blowing period (T1). Of the object (B1) in the target area (A1) by detecting the post-blast detection temperature information indicating the temperature of the target area (A1) (the post-blast detection temperature t1) in Determining the presence or absence.

  According to this aspect, it is possible to determine the presence or absence of the object (B1) in the target area (A1), and it is possible to suppress the decrease in the detection accuracy of the temperature (the detected temperature after blowing t1).

  A program according to a twentieth aspect is a program for causing one or more processors to execute the above determination method.

  According to this aspect, it is possible to determine the presence or absence of the object (B1) in the target area (A1), and it is possible to suppress the decrease in the detection accuracy of the temperature (the detected temperature after blowing t1).

  The configurations according to the second to seventeenth aspects are not essential to the determination system (2), and can be omitted as appropriate.

DESCRIPTION OF SYMBOLS 1 air-conditioning system 2 determination system 3 ventilation part 400 infrared detection element 401 infrared sensor 41 scanning part 42 processing part 6 determination part 7 wind direction control part 71 horizontal wind direction control part 72 vertical wind direction control part 10 control part T0 before air blowing period T01 1st ventilation Previous period T02 Second air blowing period T1 Air blowing period T11 First air blowing period (air blowing period)
T12 Second air blowing period (air blowing period)
T2 Post-blow period T21 First post-blow period (post-blow period)
T22 Period after second air blowing (period after air blowing)
A1 Target area A11 First target area (target area)
A12 Second target area (target area)
A2 Objectless area B1, B11, B12 Object

Claims (20)

A blower that sends hot air or cold air toward the target area during the air blowing period;
An infrared sensor for detecting post-blowing detection temperature information indicating a temperature of the target area in a post-blowing period which is a period after the blowing period;
A determination unit that determines the presence or absence of an object in the target area using at least the post-blast detection temperature information;
Equipped with
Judgment system. The infrared sensor further detects pre-blowing detection temperature information indicating a temperature of the target area in a pre-blowing period which is a period before the blowing period,
The determination unit determines the presence or absence of an object in the target area using a comparison result of a temperature indicated by the pre-blowing detected temperature information and a temperature indicated by the post-blowing detected temperature information.
The determination system according to claim 1. The post-blowing detection temperature information includes a change with time of the temperature of the target area, which is detected by the infrared sensor in the post-blowing period.
The determination system according to claim 1 or 2. The blowing unit includes a wind direction control unit that controls the direction of the wind sent from the blowing unit,
The air flow direction control unit causes the air blowing unit to blow air toward a non-target area different from the target area in the post-air blowing period.
The determination system of any one of Claims 1-3. The air flow direction control unit causes the air blowing unit to blow air toward a non-target area different from the target area in a period before the air blowing that is a period before the air blowing period.
The determination system according to claim 4. The target area includes a plurality of target areas,
The infrared sensor detects temperatures of the plurality of target areas in at least one of the pre-blowing period and the post-blowing period, respectively.
The determination system according to claim 2. The target area includes a first target area and a second target area different from the first target area,
The air blowing period includes a first air blowing period and a second air blowing period different from the first air blowing period,
The first air blowing period is a period in which the air blowing portion blows air toward the first target area,
The second air blowing period is a period in which the air blowing portion blows air toward the second target area,
The after-blow period is a period after the first after-blow period, which is a period after the first after-blow period, and is a different period from the first after-blow period, and is a period after the second after-blow period. And after the air blowing period,
The infrared sensor detects first after-blow detection temperature information indicating a temperature of the first target area in the first after-blow period.
The infrared sensor detects second post-blow detection temperature information indicating a temperature of the second target area in the second post-blow period.
The determination unit uses at least the first after-blow detection temperature information and the second after-blow detection temperature information to determine the presence or absence of the object in at least one of the first target area and the second target area. judge,
The determination system according to claim 1. In the first pre-blowing period before the first blowing period, the infrared sensor detects first pre-blowing detection temperature information indicating the temperature of the first target area,
In the first air blowing period, the air blowing unit blows air toward the first target area,
In the first post-blowing period, the infrared sensor detects the first post-blowing detected temperature information;
The infrared sensor detects second pre-blowing detection temperature information indicating a temperature of the second target area in a second pre-blowing period after the first post-blowing period and before the second blower period. ,
In the second air blowing period, the air blowing unit blows air toward the second target area,
In the second post-blowing period, the infrared sensor detects the second post-blowing detected temperature information;
The determination unit is configured to compare a temperature indicated by the first detected temperature before blowing with a temperature indicated by the first detected temperature after blowing, and a temperature indicated by the second detected temperature before blowing and the second air. Using the comparison result with the temperature indicated by the post-detection temperature information, the relationship between the first distance to the object present in the first target region and the second distance to the object present in the second target region is determined ,
The determination system according to claim 7. In a period before air blowing before the first air blowing period, the infrared sensor detects first air temperature before air blowing detection indicating the temperature of the first object area, and a second air blowing before the second object area. Detect detected temperature information,
In the first air blowing period, the air blowing unit blows air toward the first target area,
In the first post-blowing period, the infrared sensor detects the first post-blowing detected temperature information;
In the second air blowing period after the first air blowing period, the air blowing unit blows air toward the second target area,
In the second post-blowing period, the infrared sensor detects the second post-blowing detected temperature information;
The determination unit compares the temperature indicated by the first detected temperature before blowing with the temperature indicated by the first detected temperature after blowing, the second detected temperature before blowing, and the second detected temperature after second blowing. The relationship between a first distance to an object present in the first target area and a second distance to an object present in the second target area is determined using a comparison result with information.
The determination system according to claim 7. The second air blowing period and the first air blowing period are overlapping overlapping periods,
In the first air blowing period, the air blowing unit blows air toward the first target area,
In the overlapping period after the first air blowing period, the air blowing unit blows air toward the second target area, and the infrared sensor detects the first temperature after air blowing detection,
In the second post-blowing period after the overlapping period, the infrared sensor detects the second post-blowing detected temperature information,
The determination system according to claim 7. The blowing unit includes a horizontal wind direction control unit that changes the direction in which the wind from the blowing unit is directed in the horizontal direction.
The determination system according to any one of claims 1 to 10. The air blowing unit includes a vertical air direction control unit that changes the direction in which the air from the air blowing unit is directed in the vertical direction.
The determination system according to any one of claims 1 to 11. The infrared sensor comprises a plurality of infrared detection elements,
The determination system according to any one of claims 1 to 12. The plurality of infrared detection elements are arranged in a two-dimensional array.
The determination system according to claim 13. And a scanning unit configured to scan the target area by rotating the infrared sensor.
The determination system according to claim 14. And a processing unit that detects a person present in the target area from an output signal of the infrared sensor.
The determination system according to claim 15. The processing unit estimates the thermal sensation of the person from the output signal of the infrared sensor.
The determination system according to claim 16. The determination system according to any one of claims 1 to 17.
A control unit that controls the blower unit based on the determination result of the determination unit;
Equipped with
Air conditioning system. Sending warm air or cold air toward the target area during the air blowing period;
Detecting post-blowing detection temperature information indicating a temperature of the target area in a post-blowing period which is a period after the blowing period;
At least using the post-blowing detection temperature information, the presence or absence of an object in the target area is determined.
Judgment method. 20. For causing one or more processors to execute the determination method of claim 19;
program.