Air conditioning unit

Abstract

To enable suitable air supply corresponding to a congestion state or the like of an underground platform of a station to be sent to the underground platform of the station.SOLUTION: An air conditioning unit is a floor-mounted air conditioning unit to be installed on an underground platform of a station, and includes a housing having an intake port and a delivery port, an air blower for sending air supply taken into the inside of the housing from the intake port to the underground platform from the delivery port, an imaging device for picking up an image of the underground platform, a person detection part for detecting persons existing on the underground platform on the basis of the image of the underground platform picked up by the imaging device, and a delivery amount control part for controlling the delivery amount of the air supply by the air blower on the basis of a detection result of the persons by the person detection part.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an air conditioning unit. [Background technology]

[0002] BACKGROUND ART Conventionally, in air conditioning systems for underground platforms at stations, a configuration has been used in which air conditioners are installed on the ceiling surface of the platform (for example, see Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-218972 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional technology is unable to supply air to the underground platform of a station in a manner that is appropriate for the congestion level of the underground platform of the station, etc. [Means for solving the problem]

[0005] An air conditioning unit according to one embodiment is a floor-standing air conditioning unit that is installed on an underground platform at a station, and includes a housing having an intake port and an outlet port, a blower that sends out the supply air taken into the housing through the intake port to the underground platform through the outlet port, an imaging device that captures images of the underground platform, a person detection unit that detects people present on the underground platform based on the image of the underground platform captured by the imaging device, and an output amount control unit that controls the amount of supply air sent out by the blower based on the person detection results by the person detection unit. [Effects of the Invention]

[0006] According to an embodiment of the air conditioning unit, it is possible to deliver suitable supply air to the underground platform of a station according to the congestion level of the underground platform of the station, etc. [Brief explanation of the drawings]

[0007] [Figure 1] Three-view diagram of an air conditioning unit according to one embodiment [Figure 2] FIG. 2 is a block diagram showing the functional configuration of a control device provided in an air conditioning unit according to one embodiment. [Figure 3] FIG. 1 is a diagram illustrating an overview of an air blowing operation by an air conditioning unit according to an embodiment. [Figure 4] FIG. 1 is a diagram illustrating an example of a system configuration of an air conditioning system according to an embodiment. [Figure 5] Graph showing an example of control of the amount of supply air sent out by an air conditioning unit according to an embodiment. [Figure 6] Graph showing an example of control of the intake amount of supply air by an air conditioning unit according to an embodiment [Figure 7] FIG. 10 is a diagram showing an example of a display on a display provided in an air conditioning unit according to an embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment will be described with reference to the drawings.

[0009] (Configuration of air conditioning unit 100) 1 is a three-view diagram of an air conditioning unit 100 according to one embodiment. As shown in FIG. 1, the air conditioning unit 100 includes a housing 110, a blower 121, an imaging device 122, a display 123, and a control device .

[0010] <Case 110> The housing 110 is a box-shaped metallic member that forms the outer shape of the air conditioning unit 100. The housing 110 has a rectangular parallelepiped shape with its longitudinal direction extending roughly in the vertical direction (Z-axis direction).

[0011] A first air intake 111 is provided in the lower part (portion on the negative side of the Z axis) of the rear surface 110B (surface on the negative side of the X axis) of the housing 110. The first air intake 111 takes in supply air SA (Supply Air) supplied from an air conditioner 12 provided outside the air conditioning unit 100 into the housing 110 through an air intake duct 14 provided on the back side of a wall surface 24 of an underground platform 20 of the station.

[0012] A plurality of air outlets 112 are provided in an upper portion (portion on the positive side of the Z axis) of a front surface 110A (surface on the positive side of the X axis) of the housing 110. The plurality of air outlets 112 send out the supply air SA to which air force has been applied by the fan 121 toward the underground platform 20.

[0013] The right end (positive side of the Y axis) of front surface 110A of housing 110 forms right oblique surface 110Aa, which is inclined diagonally forward to the right. The left end (negative side of the Y axis) of front surface 110A of housing 110 forms left oblique surface 110Ab, which is inclined diagonally forward to the left. A plurality of outlets 112 are provided at the upper part (positive side of the Z axis) of each of right oblique surface 110Aa and left oblique surface 110Ab. This allows air conditioning unit 100 to send supply air SA, which has been given air force by blower 121, diagonally forward to the right and diagonally forward to the left.

[0014] A second air intake 113 is provided at the bottom of each of the left side surface 110C, the right oblique surface 110Aa, and the left oblique surface 110Ab of the housing 110. The second air intake 113 takes in return air RA from the underground platform 20 of the station.

[0015] <Blower 121> The blower 121 is provided at the center of the interior of the housing 110 in the vertical direction (Z-axis direction). The blower 121 sends out the supply air SA taken into the interior of the housing 110 through the first air intake 111 from multiple outlets 112 to the underground platform 20 of the station. The blower 121 is configured with an inverter, a motor, an impeller, etc. The motor is driven by driving power supplied from the inverter, causing the impeller to rotate, and the blower sends out the supply air SA by imparting wind power to the supply air SA. The blower 121 sends out the supply air SA upward inside the housing 110, and thereby sends out the supply air SA to the front of the housing 110 from multiple outlets 112 provided at the top of the housing 110. The blower 121 can control the amount of supply air SA sent out by the control device 130 controlling the inverter frequency (the frequency of the driving power supplied from the inverter). In the example shown in FIG. 1, the air conditioning unit 100 includes a pair of left and right fans 121 inside the housing 110.

[0016] <Imaging device 122> The imaging device 122 is provided at the top (positive Z-axis portion) of the front surface 110A (positive X-axis surface) of the housing 110 and at the center in the left-right direction (Y-axis direction). The imaging device 122 captures an image in front of the air conditioning unit 100 (positive X-axis direction) (i.e., an image of the underground station platform 20). In particular, the imaging device 122 is provided at a position on the front surface 110A of the housing 110 at a height of approximately 2250 mm from the floor surface 22 of the underground station platform 20 (near the upper end of the front surface 110A). As a result, the imaging device 122 is provided at a position higher than the heads of people present on the underground station platform 20, and can capture images of multiple people present on the underground station platform 20 without being obstructed by the people, overlooking the underground station platform 20. As the imaging device 122, for example, a charge coupled device (CCD) camera, a complementary metal oxide semiconductor (CMOS) camera, or the like is used.

[0017] <Display 123> Display 123 is provided on front surface 110A of housing 110, at the center in the vertical direction (X-axis direction) and the center in the horizontal direction (Y-axis direction). Display 123 presents various information to a person present on underground platform 20 of the station. For example, a liquid crystal display, an organic EL display, or the like is used as display 123.

[0018] <Control device 130> The control device 130 is provided at the bottom inside the housing 110. The control device 130 controls the operations of the blower 121, the image capture device 122, and the display 123.

[0019] 1, the air conditioning unit 100 is provided with a router 126 and an antenna 127 on the top surface 110D of the housing 110. This allows the control device 130 to wirelessly communicate with an external device (for example, the monitoring device 16) via the router 126 and the antenna 127.

[0020] (Functional configuration of control device 130) 2 is a block diagram showing the functional configuration of the control device 130 included in the air conditioning unit 100 according to one embodiment. As shown in FIG. 2, the control device 130 includes an image acquisition unit 131, a person detection unit 132, an output amount control unit 133, a temperature acquisition unit 134, an inhalation amount control unit 135, a display control unit 136, and a communication control unit 137.

[0021] The image acquisition unit 131 acquires an image of the underground platform 20 of the station captured by the imaging device 122.

[0022] The person detection unit 132 detects a person 30 present on the underground platform 20 of the station (within the imaging range of the imaging device 122) based on the image of the underground platform 20 of the station acquired by the image acquisition unit 131. For example, the person detection unit 132 detects the person 30 from the image of the underground platform 20 of the station by performing a known image recognition process.

[0023] The transmission amount control unit 133 controls the inverter frequency (the frequency of the driving power for driving the motor of the fan 121) based on the person detection result by the person detection unit 132, thereby controlling the amount of supply air SA transmitted by the fan 121. For example, the more people 30 there are on the underground platform 20 of the station, the more the transmission amount control unit 133 increases the inverter frequency, thereby increasing the amount of supply air SA transmitted by the fan 121.

[0024] The temperature acquisition unit 134 acquires the temperature of the underground platform 20 from a temperature sensor 125 provided in the underground platform 20 .

[0025] The intake amount control unit 135 controls the amount of intake of supply air SA from the first air intake port 111 by controlling the opening degree of the damper 124 provided in the air supply duct 14 based on the air temperature of the underground platform 20 detected by the air temperature acquisition unit 134. For example, the higher the air temperature of the underground platform 20 of the station, the more the intake amount of supply air SA from the first air intake port 111 is increased by increasing the opening degree of the damper 124.

[0026] The display control unit 136 controls the display content of the display 123. For example, the display control unit 136 causes the display 123 to display the temperature distribution on the underground platform 20 of the station. Furthermore, for example, the display control unit 136 causes the display 123 to display the output amount (inverter frequency) of the blower 121. Furthermore, for example, the display control unit 136 causes the display 123 to display the intake amount (opening degree of the damper 124) at the first intake port 111. Furthermore, for example, the display control unit 136 causes the display 123 to display the number of people detected by the person detection unit 132.

[0027] The communication control unit 137 controls wireless communication with an external device (monitoring device 16 ) via the router 126 and the antenna 127 .

[0028] The control device 130 is configured to include a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc. Each function of the control device 130 described above is realized, for example, by the CPU executing a program stored in the ROM in the control device 130.

[0029] (Air blowing operation by air conditioning unit 100) FIG. 3 is a diagram showing an outline of the air blowing operation by the air conditioning unit 100 according to one embodiment.

[0030] As shown in FIG. 3, the air conditioning unit 100 is installed on the floor 22 of the underground platform 20 of the station so that the rear surface 110B (the surface on the negative side of the X axis) of the housing 110 is in close contact with the wall surface 24 of the underground platform 20 of the station.

[0031] An air supply duct 14 is provided on the back side of a wall surface 24 of an underground platform 20 of the station. The air supply duct 14 is connected to an air conditioner 12, and supply air SA is supplied from the air conditioner 12. The air conditioning unit 100 has a first air intake port 111 provided at the bottom of the back surface 110B of the housing 110. The first air intake port 111 is connected to the air supply duct 14 through an opening 24A in the wall surface 24, so that the supply air SA supplied from the air conditioner 12 can be taken into the inside of the housing 110.

[0032] The supply air duct 14 is provided with a damper 124 for adjusting the amount of intake air SA from the first intake port 111. The control device 130 of the air conditioning unit 100 can control the amount of intake air SA from the first intake port 111 by controlling the opening degree of the damper 124.

[0033] For example, a temperature sensor 125 is provided on the underground platform 20 of the station (in front of the housing 110) to detect the air temperature on the underground platform 20 of the station. The control device 130 of the air conditioning unit 100 can control the amount of intake air SA from the first air intake port 111 in accordance with the air temperature on the underground platform 20 of the station detected by the temperature sensor 125.

[0034] Furthermore, a second air intake 113 is provided at the bottom of the front surface 110A of the housing 110. The second air intake 113 can take in return air RA into the housing 110 from the underground platform 20 of the station.

[0035] The supply air SA taken into the housing 110 from the first air intake 111 is sent out by the blower 121 toward the upper part of the housing 110. As a result, the supply air SA taken into the housing 110 is rectified by the rectifying plate 114 provided inside the housing 110, and is sent out from a plurality of air outlets 112 provided at the top of the housing 110 to the underground platform 20 in front of the housing 110.

[0036] As shown in FIG. 3 , the air conditioning unit 100 of this embodiment has multiple outlets 112 provided in the upper part of the housing 110, allowing it to deliver supply air SA over a wide area in front of the housing 110 (positive direction of the X-axis). Furthermore, the air conditioning unit 100 of this embodiment has multiple outlets 112 provided in the upper part of the housing 110, allowing it to deliver supply air SA toward the heads of multiple people 30 present in the underground platform 20. The air conditioning unit 100 of this embodiment has the outlets 112 disposed at a height ranging from approximately 1500 mm to 2200 mm. This allows the air conditioning unit 100 of this embodiment to deliver supply air SA sideways or diagonally downward from a position slightly higher than or at the same height as the heads of the people 30. Therefore, even when the underground platform 20 is crowded, the air conditioning unit 100 of this embodiment can deliver conditioned air (supply air SA) to the heads of multiple people 30 present in the underground platform 20, allowing the multiple people 30 to feel a sense of coolness.

[0037] Furthermore, an imaging device 122 that captures an image of the station's underground platform 20 (in front of the housing 110) is provided on the upper part of the front surface 110A of the housing 110. The control device 130 of the air conditioning unit 100 can detect people 30 present on the station's underground platform 20 (in front of the housing 110) based on the image captured by the imaging device 122. The control device 130 of the air conditioning unit 100 can then control the amount of supply air SA sent out by the blower 121 according to the number of people 30 present on the station's underground platform 20 (in front of the housing 110).

[0038] (An example of the system configuration of the air conditioning system 10) FIG. 4 is a diagram showing an example of a system configuration of an air conditioning system 10 according to an embodiment.

[0039] 4, the underground platform 20 of the station has a longitudinal shape with the Y-axis direction as the longitudinal direction. A wall surface 24 is provided behind the underground platform 20 of the station.

[0040] As shown in Fig. 4, an air conditioning system 10 according to one embodiment has a plurality of air conditioning units 100 arranged in the Y-axis direction along a wall surface 24. As shown in Fig. 3, each of the plurality of air conditioning units 100 is installed on the floor surface 22 of the underground platform 20 of the station so that the rear surface 110B (the surface on the negative side of the X-axis) of the housing 110 is in close contact with the wall surface 24 of the underground platform 20 of the station.

[0041] As shown in FIG. 4 , an air supply duct 14 is provided on the back side of a wall surface 24 of an underground platform 20 of the station. The air supply duct 14 is connected to each of the multiple air conditioning units 100 and an air conditioner 12. The air conditioner 12 is a device that takes in outside air OA and return air RA, cools or heats the outside air OA and the return air RA to generate supply air SA, and sends the generated supply air SA to the air supply duct 14 using a blower 12A. As a result, the air conditioning system 10 according to one embodiment can supply the supply air SA sent out from the air conditioner 12 to each of the multiple air conditioning units 100 via the air supply duct 14.

[0042] The air conditioning system 10 according to one embodiment can use the multiple air conditioning units 100 to send the supply air SA to multiple air-conditioned areas 26 arranged in the Y-axis direction on the underground platform 20 of the station.

[0043] As shown in FIG. 4, each air conditioning unit 100 can deliver supply air SA forward, diagonally forward to the right, and diagonally forward to the left, and therefore can deliver supply air SA over a wide range in the left-right direction (Y-axis direction) to the air-conditioned area 26.

[0044] Here, as shown in Fig. 4, a damper 124 is provided in the supply air duct 14 for each air conditioning unit 100. This allows the air conditioning system 10 according to one embodiment to control the amount of intake of supply air SA for each air conditioning unit 100. Also, as shown in Fig. 4, a temperature sensor 125 is provided for each air-conditioned area 26 on the underground platform 20 of the station. This allows the air conditioning system 10 according to one embodiment to control the amount of intake of supply air SA for each air conditioning unit 100 by controlling the opening degree of the damper 124 corresponding to that air conditioning unit 100 in accordance with the temperature of the air-conditioned area 26 corresponding to that air conditioning unit 100.

[0045] For example, the higher the temperature of the air-conditioned area 26 corresponding to that air-conditioning unit 100, the more each air-conditioning unit 100 increases the opening of the damper 124 corresponding to that air-conditioning unit 100, thereby increasing the amount of intake of supply air SA. In this way, the air-conditioning system 10 according to one embodiment can control the temperature of the supply air SA discharged from the plurality of air-conditioning units 100 so that the temperature of the supply air SA discharged from the air-conditioning unit 100 becomes lower for air-conditioned areas 26 with higher temperatures.

[0046] Each air conditioning unit 100 can detect the temperature of the air-conditioned area 26 at a predetermined sampling period using the temperature sensor 125. This allows each air conditioning unit 100 to control the intake amount of supply air SA in real time in accordance with fluctuations in the temperature of the air-conditioned area 26.

[0047] Furthermore, the air conditioning system 10 according to one embodiment may be provided with a plurality of temperature sensors 125 in each air-conditioning area 26. In this case, each air-conditioning unit 100 may control the intake amount of supply air SA based on the average value of the detection values ​​of the plurality of temperature sensors 125 provided in the air-conditioning area 26.

[0048] Each air conditioning unit 100 is also equipped with an imaging device 122 that captures an image of the area ahead (air conditioning area 26), and can detect people 30 present in the air conditioning area 26 from the image of the area ahead (air conditioning area 26) captured by the imaging device 122. Each air conditioning unit 100 can then control the inverter frequency of the fan 121 according to the detected number of people 30 present in the air conditioning area 26, thereby controlling the amount of supply air SA sent by the fan 121 to the air conditioning area 26.

[0049] For example, each air conditioning unit 100 increases the inverter frequency of the blower 121 as the number of people 30 present in the air conditioning area 26 corresponding to that air conditioning unit 100 increases, thereby increasing the amount of supply air SA sent out by the blower 121 to the air conditioning area 26. In this way, the air conditioning system 10 according to one embodiment can control the amount of supply air SA sent out from the multiple air conditioning units 100 so that the amount of supply air SA sent out from the air conditioning unit 100 increases as the number of people in the air conditioning area 26 increases.

[0050] Each air conditioning unit 100 can detect people 30 present in the air-conditioned area 26 at a predetermined sampling period. This allows each air conditioning unit 100 to control the amount of supply air SA sent out in real time according to changes in the number of people 30 present in the air-conditioned area 26.

[0051] In the example shown in FIG. 4, the air-conditioning areas 26-1 to 26-3 have low temperatures, and the air-conditioning areas 26-4 to 26-6 have high temperatures.

[0052] In response to this, the dampers 124 corresponding to the air-conditioned areas 26-1 to 26-3 are in a closed state, and the proportion of cool air in the supply air SA sent out from the air conditioning unit 100 (that is, the supply air SA supplied from the air conditioner) is reduced.

[0053] On the other hand, the dampers 124 corresponding to the air-conditioned areas 26-4 to 26-6 are in an open state, and the proportion of cool air in the supply air SA sent out from the air conditioning unit 100 (that is, the supply air SA supplied from the air conditioner) is high.

[0054] In the example shown in FIG. 4, people 30 are present in the air-conditioned areas 26-2, 26-4, and 26-6, but no people 30 are present in the air-conditioned areas 26-1, 26-3, and 26-5.

[0055] In response to this, the air conditioning units 100 corresponding to the air-conditioned areas 26-2, 26-4, 26-6 are in "normal operation" with a relatively high inverter frequency, and the amount of supply air SA sent out from the air conditioning units 100 is relatively large.

[0056] On the other hand, the air conditioning units 100 corresponding to the air-conditioned areas 26-1, 26-3, and 26-5 are in "minimum frequency operation" where the inverter frequency is the lowest frequency, and the amount of supply air SA sent out from the air conditioning units 100 is the minimum.

[0057] Furthermore, each air conditioning unit 100 can communicate wirelessly with the monitoring device 16. For example, the monitoring device 16 can monitor the status of each air conditioning unit 100, make various settings for each air conditioning unit 100, and control the operation of each air conditioning unit 100 via wireless communication with each air conditioning unit 100.

[0058] Furthermore, for example, the monitoring device 16 can acquire damper 124 opening information or inverter frequency from each of the multiple air conditioning units 100, and based on the opening of the dampers 124 of the multiple air conditioning units 100 or the inverter frequencies of the multiple air conditioning units 100, control the discharge amount of the blower 12A provided in the air conditioner 12 to the discharge amount required by the multiple air conditioning units 100.

[0059] Furthermore, for example, the monitoring device 16 can monitor the status of the air conditioner 12, make various settings for the air conditioner 12, and control the operation of the air conditioner 12 via wireless communication with the air conditioner 12.

[0060] Furthermore, for example, the monitoring device 16 can control the on / off of the air conditioner 12 by operating the air conditioner on / off from the monitoring screen. The monitoring device 16 can also automatically stop the air conditioner 12 when a fire alarm occurs. When the fire alarm is resolved, the monitoring device 16 can restart the air conditioner 12 if an on / off operation is performed again from the monitoring screen.

[0061] Furthermore, for example, the monitoring device 16 may acquire congestion information from a running train, and before the train arrives at the underground platform 20, the monitoring device 16 may control the airflow rate and opening degree of each air conditioning unit 100 in advance according to the congestion situation, thereby adjusting the temperature of the underground platform 20 in advance.

[0062] (An example of sending amount control) FIG. 5 is a graph showing an example of control of the amount of supply air SA sent out by the air conditioning unit 100 according to one embodiment.

[0063] As shown in Figure 5, the air conditioning unit 100 of one embodiment can control the amount of supply air SA sent by the blower 121 to the air conditioning area 26 by controlling the inverter frequency of the blower 121 according to the number of people 30 present in the air conditioning area 26 using the air supply amount control unit 133 of the control device 130.

[0064] For example, in the example shown in FIG. 5, when the number of people 30 present in the air-conditioned area 26 is less than the first number-of-people threshold TH11, the transmission amount control unit 133 controls the inverter frequency of the fan 121 to the lowest frequency.

[0065] In addition, when the number of people 30 present in the air-conditioned area 26 is equal to or greater than the first number-of-people threshold TH11 and less than the second number-of-people threshold TH12, the output amount control unit 133 controls the inverter frequency of the blower 121 to be equal to or greater than the minimum frequency and less than the maximum frequency so that the inverter frequency becomes higher as the number of people increases.

[0066] When the number of people 30 present in the air-conditioned area 26 is equal to or greater than the second number-of-people threshold TH12, the transmission amount control unit 133 controls the inverter frequency of the fan 121 to the highest frequency.

[0067] The minimum frequency, maximum frequency, first number of people threshold TH11, and second number of people threshold TH12 used for the transmission amount control can be set to any values ​​from the monitoring device 16 via wireless communication.

[0068] 5, the transmission amount control unit 133 controls the inverter frequency of the blower 121 to the lowest frequency when the number of people 30 present in the air-conditioned area 26 is zero, but this is not limiting. For example, the transmission amount control unit 133 may stop driving the blower 121 when the number of people 30 present in the air-conditioned area 26 is zero.

[0069] (An example of suction volume control) FIG. 6 is a graph showing an example of control of the intake amount of supply air SA by the air conditioning unit 100 according to one embodiment.

[0070] As shown in FIG. 6, the air conditioning unit 100 of one embodiment can control the amount of intake air SA into the air conditioning unit 100 by controlling the opening degree of the damper 124 according to the temperature of the air-conditioned area 26 using the intake amount control unit 135 of the control device 130.

[0071] For example, in the example shown in FIG. 6, when the temperature in the air-conditioned area 26 is lower than the first temperature threshold TH21, the intake amount control unit 135 controls the opening degree of the damper 124 to the minimum opening degree.

[0072] In addition, when the temperature in the air-conditioned area 26 is equal to or greater than the first temperature threshold TH21 and less than the second temperature threshold TH22, the intake amount control unit 135 controls the opening of the damper 124 to be greater than the minimum opening and less than the maximum opening so that the higher the temperature, the greater the opening.

[0073] When the temperature in the air-conditioned area 26 is equal to or higher than the second temperature threshold TH22, the intake amount control unit 135 controls the opening of the damper 124 to the maximum opening.

[0074] The minimum opening degree, maximum opening degree, first temperature threshold TH21, and second temperature threshold TH22 used in the intake amount control can be set to any values ​​from the monitoring device 16 via wireless communication.

[0075] (Example of display on display 123) Fig. 7 is a diagram showing an example of a display on the display 123 included in the air conditioning unit 100 according to one embodiment. A display screen 700 shown in Fig. 7 is an example of a display screen displayed on the display 123 under the control of the display control unit 136 included in the control device 130.

[0076] As shown in FIG. 7, a display screen 700 has a first display area 710, a second display area 720, and a third display area 730.

[0077] The first display area 710 displays the temperature distribution in a portion of the station's underground platform 20. Specifically, the first display area 710 displays a symbol 711 for each of a plurality of air-conditioned areas 26 in the portion of the station's underground platform 20.

[0078] The second display area 720 displays the temperature distribution throughout the station's underground platform 20. Specifically, the second display area 720 displays a symbol 721 for each of the multiple air-conditioned areas 26 throughout the station's underground platform 20.

[0079] The symbols 711, 721 have a circular shape, and indicate the range of the air-conditioning area 26 by their display position and size, and the temperature of the air-conditioning area 26 by their color. For example, the symbols 711, 721 display the temperature of the air-conditioning area 26 in different colors, with the lower the temperature, the cooler the color, and the higher the temperature, the warmer the color. In this way, the symbols 711, 721 allow the person 30 looking at the display screen 700 (first display area 710 and second display area 720) to intuitively understand the current temperature for each air-conditioning area 26.

[0080] For example, the air conditioning unit 100 can acquire information on the temperature distribution of the underground platform 20 of the station from the monitoring device 16.

[0081] The third display area 730 displays the status of various parameters handled by the air conditioning unit 100. Specifically, the third display area 730 has a first display section 732, a second display section 731, and a third display section 733, all of which are circular.

[0082] A symbol 732A indicating the amount of intake air SA (opening degree of damper 124) at first air intake port 111 is displayed on first display section 732. The design (number of leaves) of symbol 732A changes depending on the amount of intake air SA (opening degree of damper 124). This enables person 30 looking at display screen 700 (third display area 730) to intuitively understand the amount of intake air SA (opening degree of damper 124).

[0083] Second display portion 731 displays symbol 731A indicating the amount of supply air SA sent out (inverter frequency) by blower 121. Symbol 731A changes its design (number of blades) according to the amount of supply air SA sent out (inverter frequency). This enables person 30 looking at display screen 700 (third display area 730) to intuitively understand the amount of supply air SA sent out (inverter frequency).

[0084] The third display section 733 displays a symbol 733A indicating the number of people in the air-conditioned area 26 detected by the control device 130. The symbol 733A changes its design (number of people) and numerical value according to the amount of supply air SA sent out (inverter frequency). This allows the symbol 732A to enable the person 30 looking at the display screen 700 (third display area 730) to intuitively grasp the number of people in the air-conditioned area 26.

[0085] (effect) As described above, the air conditioning unit 100 of one embodiment is a floor-standing air conditioning unit 100 installed on the underground platform 20 of a station, and includes a housing 110 having a first air intake 111 and an air outlet 112, a blower 121 that blows the supply air SA taken into the housing 110 from the first air intake 111 to the underground platform 20 from the air outlet 112, an imaging device 122 that captures an image of the underground platform 20, a person detection unit 132 that detects a person 30 present on the underground platform 20 based on the image of the underground platform 20 captured by the imaging device 122, and an output amount control unit 133 that controls the amount of supply air SA output by the blower 121 based on the detection result of the person 30 by the person detection unit 132.

[0086] As a result, the air conditioning unit 100 according to one embodiment can send out an appropriate amount of supply air SA to the underground platform 20 of the station according to the congestion state of the underground platform 20 of the station, etc.

[0087] In the air conditioning unit 100 according to one embodiment, the delivery amount control unit 133 increases the amount of supply air SA delivered by the blower 121 as the number of people 30 present in the underground platform 20 increases.

[0088] As a result, the air conditioning unit 100 according to one embodiment can deliver an appropriate amount of supply air SA to the underground platform 20 of the station according to the number of people 30 present on the underground platform 20 of the station.

[0089] In addition, the air conditioning unit 100 of one embodiment further includes a temperature acquisition unit 134 that acquires the temperature of the underground platform 20, and an intake amount control unit 135 that controls the intake amount of supply air SA from the first intake port 111 based on the temperature of the underground platform 20 detected by the temperature acquisition unit 134.

[0090] As a result, the air conditioning unit 100 according to one embodiment can send out the supply air SA at a temperature suitable for the air temperature on the underground platform 20 of the station to the underground platform 20 of the station.

[0091] Furthermore, in the air conditioning unit 100 according to one embodiment, the intake amount control section 135 increases the intake amount of the supply air SA from the first air intake port 111 as the temperature of the underground platform 20 increases.

[0092] As a result, the air conditioning unit 100 according to one embodiment can send out the supply air SA at a temperature suitable for the air temperature on the underground platform 20 of the station to the underground platform 20 of the station.

[0093] Moreover, in the air conditioning unit 100 according to one embodiment, the imaging device 122 is provided at a position higher than the head of the person 30 present on the underground platform 20.

[0094] As a result, the air conditioning unit 100 of one embodiment can use the imaging device 122 to capture a wide range of images from above the underground platform 20, thereby improving the accuracy of detecting multiple people 30 present on the underground platform 20.

[0095] In addition, the air conditioning unit 100 of one embodiment further includes a display 123 that presents information regarding the air conditioning status of the underground platform 20 to a person 30 present on the underground platform 20, and a display control unit 136 that controls the display content of the display 123.

[0096] As a result, the air conditioning unit 100 according to one embodiment can allow a person 30 present in the underground platform 20 to easily understand the air conditioning status of the underground platform 20 .

[0097] Moreover, in the air conditioning unit 100 according to one embodiment, the display control unit 136 causes the display 123 to display the temperature distribution in the underground platform 20.

[0098] As a result, the air conditioning unit 100 according to one embodiment allows the person 30 present in the underground platform 20 to easily understand the temperature distribution of the underground platform 20. Therefore, the air conditioning unit 100 according to one embodiment can, for example, guide the person 30 to an area with a temperature that is suitable for the person 30.

[0099] Moreover, in the air conditioning unit 100 according to one embodiment, the air outlet 112 is provided at a position higher than the head of a person 30 present on the underground platform 20.

[0100] As a result, the air conditioning unit 100 of one embodiment can deliver supply air SA over a relatively wide area in the underground platform 20, and can also deliver supply air SA toward the heads of multiple people 30 present in the underground platform 20.

[0101] In addition, in one embodiment of the air conditioning unit 100, the housing 110 has an outlet 112 that sends out the supply air SA toward the front of the housing 110, an outlet 112 that sends out the supply air SA toward the diagonally forward right of the housing 110, and an outlet 112 that sends out the supply air SA toward the diagonally forward left of the housing 110.

[0102] As a result, the air conditioning unit 100 according to one embodiment can send out the supply air SA over a wide area in front of the housing 110.

[0103] Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist of the present invention described in the claims.

[0104] For example, in the above embodiment, the air conditioning unit 100 is installed in the underground platform 20 so that the front direction of the air conditioning unit 100 is parallel to the short side direction of the underground platform 20, but this is not limited to this. For example, the air conditioning unit 100 may be installed in the underground platform 20 so that the front direction of the air conditioning unit 100 is parallel to the long side direction of the underground platform 20. In this case, the airflow of the supply air SA sent out from the air conditioning unit 100 is directed along the long side direction of the underground platform 20, so that a single air conditioning unit 100 can efficiently air-condition a wide area within the underground platform 20. [Explanation of symbols]

[0105] 10. Air Conditioning System 12 Air conditioner 12A blower 14 Air supply duct 16 Monitoring equipment 20 Underground Platform 22 Floor 24 Wall 24A opening 26 Air Conditioning Area 30 people 100 air conditioning units 110 Case 110A front 110Aa Right diagonal surface 110Ab Left oblique surface 110B Back 110C left side 111 First air intake 112 Outlet 113 Second intake 114 Rectifier plate 121 Blower 122 Imaging device 123 Display 130 Control device 131 Image acquisition unit 132 Person detection unit 133 Transmission Volume Control Unit 134 Temperature acquisition unit 135 Intake volume control unit 136 Display control unit 137 Communication Control Unit 700 display screen 710 1st display area 720 Second display area 730 Third display area 731 1st display section 732 2nd display section 733 Third display 711,721,731A,732A,733A symbols OA Outside air RA return air SA Air Supply

Claims

1. A floor-standing air conditioning unit installed on an underground station platform, a housing having an intake port and an outlet port; A blower that sends the supply air taken into the housing from the air intake port to the underground platform from the air outlet; An imaging device that captures an image of the underground platform; A person detection unit that detects a person present on the underground platform based on an image of the underground platform captured by the imaging device; a blowout amount control unit that controls the amount of the supply air blown by the blower based on a result of the person detection by the person detection unit; An air conditioning unit comprising:

2. The transmission amount control unit The greater the number of people present in the underground platform, the greater the amount of air sent out by the blower.

2. An air conditioning unit according to claim 1.

3. a temperature acquisition unit that acquires the temperature of the underground platform; an intake amount control unit that controls the intake amount of the supply air from the intake port based on the temperature of the underground platform detected by the temperature acquisition unit; 3. The air conditioning unit according to claim 1, further comprising:

4. The suction amount control unit The higher the temperature of the underground platform, the greater the intake amount of the supply air from the intake port.

4. An air conditioning unit according to claim 3.

5. The imaging device is The device is provided at a position higher than the head of the person present on the underground platform.

5. An air conditioning unit according to any one of claims 1 to 4.

6. a display that presents information about the air conditioning status of the underground platform to the person present on the underground platform; a display control unit that controls the display content of the display; 6. An air conditioning unit according to any one of claims 1 to 5, further comprising:

7. The display control unit The temperature distribution in the underground platform is displayed on the display.

7. An air conditioning unit according to claim 6.

8. The delivery port is The device is provided at a position higher than the head of the person present on the underground platform.

8. An air conditioning unit according to any one of claims 1 to 7.

9. The housing includes: the air outlet that delivers the supply air toward the front of the housing; the air outlet that delivers the supply air diagonally toward the front right of the housing; the air outlet that delivers the supply air diagonally forward to the left of the housing; 9. An air conditioning unit according to claim 8, characterized in that it comprises:

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