JP2017219275A - Air conditioning control device and air conditioning control method using ultrasonic temperature measurement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the waste of energy by taking the presence/absence of a person into consideration.SOLUTION: Ultrasonic transceiver units 1-1 to 1-N are installed in a peripheral part of a control object space 6. Information indicating an area of the presence/absence of a person in the control object space 6 is acquired as stay information (a stay information acquisition part 2), and the control object space 6 is divided into an absence area and a stay area (a data processing part 3). A temperature distribution of the control object space 6 is acquired from temperature data from the ultrasonic transceiver units 1-1 to 1-N by using a computer tomography (CT) technology (the data processing part 3). Control commands to air conditioning units 5-1 to 5-M are created from the temperature distribution of the control object space 6 acquired by the data processing part 3 and the divided absence area and stay area (a control command part 4), and air conditioning control for prioritizing the comfort of the stay area more than that of the absence area is performed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air conditioning control device and an air conditioning control method using ultrasonic temperature measurement for measuring temperature by ultrasonic waves.

  2. Description of the Related Art Conventionally, ultrasonic temperature measurement for measuring temperature with ultrasonic waves is known. For example, in the environmental state measurement method disclosed in Patent Document 1, ultrasonic transmitters and transmitters called nodes are installed at a plurality of locations on the periphery of a space to be measured, and the propagation time of ultrasonic waves measured by the ultrasonic transmitter and receiver is set. Using the computed tomography (CT) technology from (the propagation time of ultrasonic waves between the transmitter (speaker) and the receiver (microphone) facing each other across the space to be measured), the space to be measured The temperature distribution inside is calculated.

Japanese Patent No. 3606021

  Patent Document 1 describes that, in addition to calculating the temperature distribution in the space to be measured, data representing the calculated temperature distribution is used for air conditioning control of the space to be measured (control target space) ( (Refer to paragraph [0096] of Patent Document 1).

  However, although this Patent Document 1 describes using data representing the calculated temperature distribution for air conditioning control of the control target space, it does not describe details.

  6A, 6B, and 6C are examples of the temperature distribution shown in Patent Document 1. FIG. In this temperature distribution example, the high temperature region to the low temperature region are shown with a gradient. Here, for example, the factors that are the high temperature regions in FIGS. 6A, 6 </ b> B, and 6 </ b> C are not considered in the air conditioning control of the control target space.

  That is, although the temperature distribution is a high temperature region, it is not known whether the cause of the high temperature in the region is due to the heat generated by the device or the presence of people. For this reason, for example, when the factor that the temperature is high is due to the heat generation of the device and there is no person in the area, the air conditioning control for the area itself causes an increase in energy consumption.

  As described above, in the air conditioning control using ultrasonic temperature measurement described in Patent Document 1, no consideration is given to the presence / absence of a person in the control target space, so the air conditioning control is performed even in a space where there is no person. There is a problem that energy is wasted.

  The present invention has been made in order to solve such problems, and an object of the present invention is to perform ultrasonic temperature measurement capable of eliminating waste of energy by considering presence / absence of a person. It is in providing the air-conditioning control apparatus and air-conditioning control method which were used.

  In order to achieve such an object, the present invention provides a temperature distribution calculating means (3) for obtaining the temperature distribution of the control target space (6) by ultrasonic temperature measurement, and the presence / absence of a person in the control target space (6). Acquired by stay information acquisition means (2) for acquiring information indicating the area of the vehicle as stay information, and temperature distribution and stay information acquisition means (2) of the control target space (6) obtained by the temperature distribution calculation means (3) And air conditioning control means (4, 5) for controlling the air conditioning of the control target space (6) based on the stay information.

  In this invention, the temperature distribution of the control target space (6) is obtained by ultrasonic temperature measurement, and information indicating the presence / absence of a person in the control target space (6) is acquired as stay information. Air conditioning control of the control target space (6) is performed based on the stay information and the obtained temperature distribution. Accordingly, in the present invention, the control target space (6) is classified into the absence area (AR1) where there is no person and the stay area (AR2) where there is a person, so that the stay area (AR2) is more comfortable than the absence area (AR1). It is possible to eliminate waste of energy by performing air-conditioning control in consideration of the presence / absence of people, such as air-conditioning control that gives priority to performance.

  In the above description, as an example, constituent elements on the drawing corresponding to the constituent elements of the invention are indicated by reference numerals with parentheses.

  As described above, according to the present invention, the control target space is classified into the absence area where there is no person and the stay area where there is a person, and air conditioning control is performed so that the comfort of the stay area is given priority over the absence area. It is possible to eliminate waste of energy by performing air-conditioning control in consideration of the presence / absence of a person, for example.

FIG. 1 is a diagram illustrating a configuration of a main part of an air conditioning control device using ultrasonic temperature measurement according to an embodiment of the present invention. FIG. 2 is a diagram showing a configuration of an ultrasonic transceiver unit used in an air conditioning control device using this ultrasonic temperature measurement. FIG. 3 is a plan view showing an installation example of the ultrasonic transceiver unit on the peripheral edge of the space to be controlled. FIG. 4 is a diagram illustrating an absent area and a stay area in the control target space. FIG. 5 is a diagram schematically illustrating the temperature distribution of the control target space obtained by the data processing unit, the average temperature in each grid of the control target space, and the absence area and stay area for each grid. FIG. 6 is a diagram illustrating an example of the temperature distribution disclosed in Patent Document 1. In FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a configuration of a main part of an air conditioning control device 100 using ultrasonic temperature measurement according to an embodiment of the present invention.

  The air conditioning control device 100 using this ultrasonic temperature measurement includes a plurality of ultrasonic transmitter / receiver units 1 (1-1 to 1-N), a stay information acquisition unit 2, a data processing unit 3, and a control command unit 4. And a plurality of air conditioning control units 5 (5-1 to 5-M) such as a variable air volume adjustment unit (VAV) and a fan coil unit (FCU).

  As shown in FIG. 2, the ultrasonic transceiver units 1-1 to 1-N include a transmitter 1A that transmits ultrasonic waves, a receiver 1B that receives ultrasonic waves transmitted from the transmitter 1A, and a controller 1C. And is installed at the periphery of the control target space 6 as shown in FIG. In addition, in FIG. 3, the installation position of each ultrasonic transmitter / receiver unit 1 is shown by a circled number.

  In this example, N = 10, and five ultrasonic transmitter / receiver units 1 are arranged in the vertical and horizontal directions so that the transmitter 1A and the receiver 1B face each other with the control target space 6 interposed therebetween. Arranged.

  The ultrasonic transceiver units 1-1 to 1-N calculate an average temperature (space average temperature) TC on the line from the propagation time of the ultrasonic waves between the transmitter 1A and the receiver 1B. The ultrasonic transceiver units 1-1 to 1-N include a temperature sensor (not shown) that detects the temperature of the transmitter 1A as TA and the temperature of the receiver 1B as TB. The ultrasonic transceiver units 1-1 to 1-N perform data processing using the temperature TA of the transmitter 1A, the temperature TB of the receiver 1B, and the spatial average temperature TC between the transmitter 1A and the receiver 1B as temperature data. Send to part 3.

  The stay information acquisition unit 2 acquires information indicating the presence / absence of a person in the control target space 6 as stay information. In this example, information associated with a dedicated switch (not shown) and lighting is acquired as stay information. That is, information indicating the on / off status of a dedicated switch provided for the control target space 6 and the lighting on / off status in the control target space 6 is acquired as stay information. In addition, it is good also as what acquires stay information as a fluctuation | variation of the measured value (space average temperature TC) caused when the path | route of the ultrasonic wave used for temperature measurement is interrupted | blocked.

  The data processing unit 3 obtains the temperature distribution of the control target space 6 from the temperature data from the ultrasonic transceiver units 1-1 to 1-N using a computed tomography (CT) technique. Further, the data processing unit 3 receives the stay information acquired by the stay information acquisition unit 2 as an input, and based on the stay information, the control target space 6 is a non-existence area AR1 in which no person is present and a stay area (in-room area) in which a person is present. Classification into AR2 (see FIG. 4).

  The control command unit 4 uses the temperature distribution of the control target space 6 obtained by the data processing unit 3, the absent area AR1 and the stay area AR2 classified by the data processing unit 3, and the air conditioning control units 5-1 to 5- Generate a control command to M.

  The air conditioning control units 5-1 to 5-M are provided corresponding to M (M ≧ 2) air conditioning zones that are determined by virtually dividing the control target space 6. In this case, the control command unit 4 sends a control command that gives priority to the comfort of the stay area AR2 over the absent area AR1 in the control target space 6 to the air conditioning control units 5-1 to 5-M.

  In FIG. 1, the stay information acquisition unit 2, the data processing unit 3, and the control command unit 4 are based on hardware including a processor and a storage device and a program that realizes various functions in cooperation with these hardware. Realized. In FIG. 1, a block including this stay information acquisition unit 2, data processing unit 3, and control command unit 4 is shown as a control device 7.

  FIG. 5A illustrates the temperature distribution (temperature distribution information) of the control target space 6 obtained by the data processing unit 3. The data processing unit 3 includes the absence area AR1 as illustrated in FIG. 4 that is classified based on the temperature distribution (temperature distribution information) of the control target space 6 as illustrated in FIG. 5A and the stay information. From the stay area AR2, control commands to the air conditioning control units 5-1 to 5-M are generated.

  FIG. 5B schematically shows an example of the average temperature in each grid and the absence area AR1 and the stay area AR2 for each grid when the control target space 6 is virtually divided into a grid. The number in the lattice is the average temperature in the lattice, the area indicated by diagonal lines indicates the absent area AR1, and the area indicated by halftone lines indicates the stay area AR2.

  For example, in FIG. 5B, attention is focused on a zone having an average temperature of “28.5 ° C.” or higher. The nine zones in the upper left are all where people are staying and the staying status is “staying”. Therefore, the air conditioning is controlled so that the temperature of these regions becomes a predetermined space setting temperature (for example, 27.0 ° C.). That is, the air conditioning is controlled so as to satisfy the comfort of the person in the stay area AR2.

  On the other hand, spaces other than the nine zones on the upper left are zones where the stay status is “absent”. In this case, air-conditioning control is performed such that the temperature of these zones is slightly higher (for example, 28.0 ° C.) than a predetermined space setting temperature (for example, 27.0 ° C.). That is, if it is assumed that there is a person in the absent area AR1, the air conditioning control is performed in a direction opposite to the direction satisfying the comfort of the person (the direction not satisfying the comfort).

  As a result, air-conditioning control that prioritizes the comfort of the stay area AR2 over the absent area AR1 is performed, so that useless air-conditioning control is not performed on a space where there is no person, and energy is wasted. become able to. That is, when viewed as the control target space 6 as a whole, some environmental degradation occurs in the absent area AR1, but the cost is more important than that.

  In the above description, the air conditioning control is performed so that the temperature becomes high for the zone where the stay status is “absent”, but the air conditioning control itself is not performed for the “absent” zone. Good. In other words, air conditioning control may be performed only for the “stay” zone. Here, even if the average temperature is the same between the zone where the staying status is “staying” (staying area AR2) and the zone where there is “absent” (absent area AR1), the “absent” zone is controlled. It is important to perform air-conditioning control that weakens as follows.

  In the above description, the air conditioning control units 5-1 to 5-M are provided corresponding to the M air conditioning zones determined by virtually dividing the control target space 6, but FIG. An air supply port for supplying conditioned air to each zone (zone) shown in (b) may be provided. In this way, more precise control can be performed, and it is possible not to supply air to a zone where the stay status is “absent”.

[Extension of the embodiment]
The present invention has been described above with reference to the embodiment. However, the present invention is not limited to the above embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the technical idea of the present invention.

  DESCRIPTION OF SYMBOLS 1 (1-1-1-N) ... Ultrasonic transmitter-receiver unit, 1A ... Transmitter, 1B ... Receiver, 1C ... Controller, 2 ... Stay information acquisition part, 3 ... Data processing part, 4 ... Control command part, 5 (5-1 to 5-M): air conditioning control unit, 6: control target space, 7: control device, 100: air conditioning control device using ultrasonic temperature measurement, AR1: absent area, AR2: stay area (present Room area).

Claims (10)

Temperature distribution calculating means for obtaining the temperature distribution of the control target space by ultrasonic temperature measurement;
Stay information acquisition means for acquiring information indicating the presence / absence of a person in the control target space as stay information;
And air conditioning control means for performing air conditioning control of the control target space based on the temperature distribution of the control target space obtained by the temperature distribution calculating means and the stay information acquired by the stay information acquiring means. Air conditioning controller using ultrasonic temperature measurement. In the air-conditioning control apparatus using ultrasonic temperature measurement according to claim 1,
Classifying means for classifying the control target space into a absent area where no person is present and a stay area where a person is present based on the stay information acquired by the stay information acquiring means,
The air conditioning control means includes
An air-conditioning control apparatus using ultrasonic temperature measurement, which performs air-conditioning control that gives priority to the comfort of the stay area over the absence area of the control target space classified by the classification means. In the air conditioning control device using ultrasonic temperature measurement according to claim 2,
The air conditioning control means includes
An air conditioning control apparatus using ultrasonic temperature measurement, wherein air conditioning control is not performed for the absent area, but air conditioning control is performed only for the stay area. In the air conditioning control device using ultrasonic temperature measurement according to claim 2,
The air conditioning control means includes
An air conditioning control apparatus using ultrasonic temperature measurement, wherein air conditioning control is performed in a direction not satisfying comfort for the absent area, and air conditioning control is performed in a direction satisfying comfort for the stay area. In the air-conditioning control apparatus using ultrasonic temperature measurement according to claim 1,
The stay information is
An air conditioning control device using ultrasonic temperature measurement, which is acquired as information linked to a dedicated switch. In the air-conditioning control apparatus using ultrasonic temperature measurement according to claim 1,
The stay information is
An air conditioning control device using ultrasonic temperature measurement, which is acquired as information linked to illumination in the control target space. In the air-conditioning control apparatus using ultrasonic temperature measurement according to claim 1,
The stay information is
An air-conditioning control apparatus using ultrasonic temperature measurement, which is acquired as a change in a measurement value caused by blocking an ultrasonic path used for the ultrasonic temperature measurement. In the air-conditioning control apparatus using ultrasonic temperature measurement according to claim 1,
An air-conditioning control apparatus using ultrasonic temperature measurement, wherein an air supply port for supplying conditioned air to each zone obtained by dividing the control target space into a grid is provided. In the air-conditioning control apparatus using ultrasonic temperature measurement according to claim 1,
Comprising ultrasonic transceiver units installed at a plurality of locations on the peripheral edge of the control target space;
The ultrasonic transceiver unit is:
A transmitter for transmitting ultrasonic waves;
A receiver for receiving the ultrasonic waves transmitted from the transmitter,
The air conditioner control apparatus using ultrasonic temperature measurement, wherein the transmitter and the receiver are arranged to face each other with the control target space in between. A temperature distribution calculating step for obtaining the temperature distribution of the control target space by ultrasonic temperature measurement;
Stay information acquisition step of acquiring information indicating the presence / absence of a person in the control target space as stay information;
An air conditioning control step of performing air conditioning control of the controlled space based on the temperature distribution of the controlled space determined by the temperature distribution calculating step and the stay information acquired by the stay information acquiring step. Air conditioning control method using ultrasonic temperature measurement.

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