Parking lot greening system

Abstract

To provide a greening parking lot that allows plants to grow even in low-illuminance environments and protects the plants from external heat.SOLUTION: A parking lot greening system includes a parking section having a planting section where plants are planted and on which vehicles can be parked, and a first supply section that supplies second air having a higher concentration of carbon dioxide than first air corresponding to the atmosphere from around the plants and releases the second air to the plants. In the parking lot greening system, the first supply section may include a generation section that generates the second air and a control section that controls generation of the second air by the generation section.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a parking lot greening system. [Background technology]

[0002] In recent years, attempts have been made to reduce the heat island effect by planting grass or other plants in parking lots to create green parking lot structures (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-200462 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional green parking lots, the plants are hidden by the shadow of the car when it is parked, which raises concerns that the plants will not get enough sunlight if the car is parked for a long time during the day. Furthermore, the plants are exposed to the radiant heat of the engine while the car is parked. These factors can lead to poor plant growth and even the risk of the plants dying.

[0005] The present invention has been made in consideration of these problems, and one of its objects is to provide a green parking lot where plants can grow even in a low-light environment, or to provide a green parking lot where plants can be protected from external heat. [Means for solving the problem]

[0006] According to one embodiment of the present invention, a parking lot greening system is provided, which includes a parking area having a planting area where plants are planted and on which a vehicle can be placed, and a first supply unit that releases second air containing a higher concentration of carbon dioxide than first air corresponding to the atmosphere to the plants.

[0007] According to this aspect, by supplying high-concentration carbon dioxide from the surrounding area of ​​the plant, the plant can grow even in a low-light environment. In addition, the plant can be protected from heat from the outside (sun or vehicle).

[0008] In the parking lot greening system, the first supply unit may include a generator that generates the second air, and a controller that controls the generation of the second air by the generator.

[0009] According to this aspect, the release of carbon dioxide can be controlled by the control unit, and the supply of the second air can be stabilized.

[0010] In the above parking lot greening system, the generation unit may include a carbon dioxide adsorption / release unit that adsorbs or desorbs carbon dioxide depending on temperature, and a second supply unit that supplies heat to the carbon dioxide adsorption / release unit, and the control unit may control the operation of the second supply unit.

[0011] According to this embodiment, the recovery and release of carbon dioxide can be easily controlled.

[0012] In the parking lot greening system, the control unit may control the operation of the second supply unit in accordance with time information.

[0013] According to this aspect, it is possible to easily control the collection and release of carbon dioxide in accordance with time information.

[0014] In the above parking lot greening system, the first supply unit includes a first supply pipe that guides the second air generated in the generation unit to the planting unit, and a second supply pipe that has a temperature change rate of the second air generated in the generation unit different from that of the first supply pipe, and the control unit may control the second air generated in the generation unit to pass through either the first supply pipe or the second supply pipe depending on the set temperature when it is released from the first supply unit.

[0015] According to this aspect, by changing the supply pipe through which the second air passes depending on the set temperature at the time of release, the second air can be stably supplied at an appropriate temperature.

[0016] In the parking lot greening system, the second supply pipe may be covered with a heat insulating material.

[0017] According to this aspect, it is possible to suppress temperature changes in the second air.

[0018] In the above parking lot greening system, the parking area may include a greening protection section located adjacent to the planting area to protect plants from impacts caused by the vehicle's tires, and the first supply section may supply second air through a soil layer located below the greening protection section and the planting area.

[0019] According to this aspect, carbon dioxide can be stably supplied via the greening protection portion and the soil layer.

[0020] In the parking lot greening system, the first supply unit may supply moisture to the soil layer when supplying the second air.

[0021] According to this aspect, the soil can be prevented from drying out during aeration.

[0022] The parking lot greening system may further include an irrigation unit that supplies water to the plants through the soil layer.

[0023] According to this aspect, it is possible to prevent the soil from drying out during aeration and to reduce the amount of water used for irrigation.

[0024] In the above parking lot greening system, the parking area may further include a greening protection area located adjacent to the planting area to protect the plants from impacts caused by the vehicle's tires, a detection area to detect when the vehicle is placed on the greening protection area, and a lighting area located in the parking area, and the lighting area may be lit and the first supply area may supply the second air based on information detected by the detection area.

[0025] According to this aspect, it is possible to control the blowing of the second air and the lighting of the LEDs installed in the planting section at the timing when the vehicle is parked in the parking section. [Effects of the Invention]

[0026] By using the present invention, it is possible to provide a green parking lot where plants can grow even in a low-light environment, or a green parking lot where plants can be protected from external heat. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a block diagram showing an overview of a parking lot greening system according to an embodiment of the present invention. [Figure 2A] 3 is a schematic diagram of a first supply unit in the parking lot greening system according to one embodiment of the present invention. FIG. [Figure 2B] 1 is a schematic top view of a parking area in a parking lot greening system according to one embodiment of the present invention. FIG. [Figure 2C] 1 is a schematic cross-sectional view of a parking area in a parking lot greening system according to one embodiment of the present invention. [Figure 3] 1 is a cross-sectional view of a generating unit in a parking lot greening system according to one embodiment of the present invention. [Figure 4] 1 is a schematic cross-sectional view of a parking area in a parking lot greening system according to one embodiment of the present invention. [Figure 5] 1 is a schematic cross-sectional view of a parking area in a parking lot greening system according to one embodiment of the present invention. [Figure 6]3 is a schematic diagram of a first supply unit in the parking lot greening system according to one embodiment of the present invention. FIG. [Figure 7A] 1 is a schematic top view of a parking area in a parking lot greening system according to one embodiment of the present invention. FIG. [Figure 7B] 1 is a schematic cross-sectional view of a parking area in a parking lot greening system according to one embodiment of the present invention. [Figure 8] 1 is a schematic top view of a parking area in a parking lot greening system according to one embodiment of the present invention. FIG. [Figure 9] 1 is a schematic top view of a parking area in a parking lot greening system according to one embodiment of the present invention. FIG. [Figure 10] 1 is a block diagram showing an overview of a parking lot greening system according to an embodiment of the present invention. [Figure 11] 1 is a schematic top view of a parking area in a parking lot greening system according to one embodiment of the present invention. FIG. [Figure 12] FIG. 2 is a block diagram of a control device according to an embodiment of the present invention. [Figure 13] FIG. 2 is a functional block diagram of a control unit of the control device according to the embodiment of the present invention. [Figure 14] FIG. 2 is a control flow diagram according to an embodiment of the present invention. [Figure 15] 1 is a schematic cross-sectional view of a parking area in a parking lot greening system according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention can be implemented in many different forms, and should not be construed as being limited to the description of the embodiments exemplified below. For clarity of explanation, the drawings may show the width, thickness, shape, etc. of each part schematically compared to the actual form, but these are merely examples and do not limit the interpretation of the present invention. Furthermore, in this specification and each drawing, elements similar to those previously described with reference to the previous drawings are designated by the same reference numerals (or reference numerals with A, B, etc. suffixed thereto), and detailed descriptions may be omitted as appropriate. Furthermore, the letters "first" and "second" attached to each element are convenient labels used to distinguish each element and have no further meaning unless otherwise specified.

[0029] 1. First Embodiment (1-1. Parking lot greening system) FIG. 1 is a block diagram showing an overview of a parking lot greening system 10 according to this embodiment. The parking lot greening system 10 includes a parking section 100 and a first supply section 200. FIG. 2A is a schematic diagram of the first supply section 200. FIG. 2B is a schematic top view of the parking section 100. FIG. 2C is a schematic cross-sectional view of the parking section 100 as seen from the rear side. The configurations of the parking section 100 and the first supply section 200 are described below.

[0030] (1-2. Parking area) The parking area 100 refers to an area where a vehicle can be parked. As shown in FIGS. 2B and 2C, the parking area 100 includes a planting area 110 and a greening protection area 120. Plants (e.g., grass) are planted in the planting area 110. The greening protection area 120 functions to protect the plants from impacts caused by vehicle tires. Therefore, as shown in FIG. 2B, the greening protection area 120 is provided in accordance with the tire entry position. Specifically, two rows of greening protection areas 120 are provided in each parking area 100 in the vehicle width direction (x direction). In this embodiment, the greening protection area 120 on the left side in the forward direction of the vehicle (y direction) when parking backward is referred to as the first greening protection area 120L, and the greening protection area 120 on the right side is referred to as the second greening protection area 120R. The surface layer of the greening protection area 120 may be formed using a hard material such as concrete. Note that in this embodiment, the depth direction is referred to as the z direction.

[0031] (1-3. 1st supply section) The first supply unit 200 supplies air (referred to as "second air 202" in this embodiment) containing a higher concentration of carbon dioxide than air corresponding to the atmosphere (outside air) (referred to as "first air 201" in this embodiment) from the vicinity of the plants (greening protection unit 120 and soil layer 115) and releases it to the plants planted in the planting unit 110. As shown in FIGS. 1 and 2A, the first supply unit 200 includes a generation unit 210 and a supply pipe 230.

[0032] The generation unit 210 generates the second air 202. FIG. 3 is a cross-sectional schematic diagram of the generation unit 210. As shown in FIGS. 2A and 3, the generation unit 210 has a first air supply unit 211, a heat supply unit 213, and a carbon dioxide adsorption / release unit 215. The first air supply unit 211 supplies outside air (first air 201) to the generation unit 210. The first air supply unit 211 includes piping 2111 and a control valve 2113. In this case, the control valve 2113 may be provided with a valve with a timer. The control valve 2113 may be controlled so that the control valve is closed during the day and opened at night. The arrangement position and number of the first air supply units 211 may be adjusted as appropriate.

[0033] As shown in FIGS. 2A and 3 , the heat supply unit 213 (also referred to as the “second supply unit”) supplies heat to the carbon dioxide adsorption / release unit 215. In this embodiment, the heat supply unit 213 includes a hot water pipe 2131 (also referred to as the “heat supply unit” or the “second supply unit”) and a control valve 2133. The control valve 2133 controls the opening and closing of the hot air or hot water supplied from the hot water pipe 2131. Therefore, it can also be said to be a control unit for controlling the generation of the second air 202. In this embodiment, the control valve 2133 may control the supply of hot air or hot water from the hot water pipe 2131 according to time information. The hot water pipe 2131 appropriately uses hot air heated by sunlight, hot air from an outdoor unit, hot air discharged from a factory, hot air from an internal combustion engine exhaust, hot air from a combustion furnace exhaust, or hot water discharged from these sources. Using such hot air or hot water makes it possible to utilize unused thermal energy, thereby reducing costs.

[0034] The carbon dioxide adsorption / release unit 215 adsorbs and releases the outside air (first air 201) supplied from the first air supply unit 211 depending on the temperature. In this embodiment, a chemical absorption method or a chemical adsorption method is used. In the chemical absorption method, CO2 in the atmosphere is absorbed and separated by passing air through a carbonate solution of calcium, sodium, potassium, or the like or an amine compound solution, and the CO2 can be separated and captured by heating. In the chemical adsorption method, CO2 can be separated and captured by passing air through an alkali metal salt, an amine-supported porous material, a metal-organic framework (MOF), or an ion exchange resin. In the chemical absorption method and the chemical adsorption method, a compound capable of adsorbing and releasing carbon dioxide is generally used in the carbon dioxide adsorption / release unit 215. More specifically, the carbon dioxide adsorption / release unit 215 may use compounds such as those described in the specification of International Publication No. 2022 / 085789. Alternatively, in the chemical absorption method and chemical adsorption method, a known porous metal-organic framework that adsorbs and desorbs carbon dioxide can be used as the carbon dioxide adsorption / desorption unit 215, such as the porous metal-organic framework described in JP 2023-158570 A. Such a compound capable of adsorbing and desorbing carbon dioxide can adsorb carbon dioxide at a temperature below 40°C and desorb carbon dioxide at a temperature higher than the temperature at which the carbon dioxide was adsorbed, for example, a temperature above 40°C and below 100°C (a temperature in the low to medium temperature range). When such a compound capable of adsorbing and desorbing carbon dioxide is used, carbon dioxide can be adsorbed at a temperature around room temperature (e.g., 25°C), in other words, at a temperature at which no intentional heating is performed, and the carbon dioxide can be desorbed by heating using natural energy such as sunlight.

[0035] It should be noted that a compound capable of adsorbing and desorbing carbon dioxide may be evaluated as absorbing carbon dioxide (it may absorb carbon dioxide rather than adsorb it), and a compound capable of adsorbing and desorbing carbon dioxide may also be referred to as a compound capable of adsorbing and desorbing carbon dioxide. By using a compound capable of adsorbing and desorbing carbon dioxide, it is possible to adsorb or desorb carbon dioxide in the atmosphere depending on the temperature without using a separate raw material for supplying carbon dioxide, and therefore it is possible to reduce raw material costs.

[0036] The supply pipe 230 guides the second air 202 generated in the generating section 210 to the planting section 110. In this embodiment, the supply pipe 230 has a first section 231, a second section 232, and a third section 233. The first section 231 is connected to the generating section 210. The first section 231 faces upward because the second air 202 generated in the generating section 210 has a higher temperature than the outside air. The second section 232 is connected to the first section 231. The second section 232 has a downward-facing portion through which outside air is introduced. The second air 202 is gradually cooled through the second section 232 until it reaches a temperature similar to that of the outside air. The third section 233 supplies the second air 202 to the planting section 110. The third section 233 may have a portion that is parallel to the surface of the planting section 110. The size (diameter) of the pipe decreases in the order of first portion 231, second portion 232, and third portion 233.

[0037] It should be noted that the supply pipe 230 is not limited to this type. The supply pipe 230 does not necessarily have to have all of the first portion 231, the second portion 232, and the third portion 233. The supply pipe 230 may also have another configuration for adjusting the temperature. For example, a blower (fan) may be attached to the supply pipe 230 to control the temperature change or supply amount of the second air 202.

[0038] In this embodiment, the heat supplied from the heat supply unit 213 is controlled by opening and closing (ON-OFF) the control valve 2133 approximately every half day. When closed (OFF), the carbon dioxide adsorption and release unit 215 adsorbs carbon dioxide, and when open (ON), the carbon dioxide is released. Warm second air 202 containing the released carbon dioxide rises up the first portion 231 of the supply pipe 230. Next, the second air 202 is cooled in the second portion 232, and second air that is the same as the outside air temperature and has a high carbon dioxide concentration is supplied to the plants in the planting section 110.

[0039] 2B , in order to prevent damage to the supply pipe 230 due to tire pressure, the supply pipe 230 (particularly the third portion 233) may be installed from the rear side of the parking area 100 (the side where the vehicle stops 125 are installed, the -y direction). The third portion 233 of the supply pipe 230 is installed below the greening protection area 120 or inside the greening protection area 120.

[0040] The third portion 233 of the supply pipe 230 may include a connecting portion 233a that connects the third portion 233L of the first greening protection portion 120L with the third portion 233R of the second greening protection portion 120R. As shown in FIG. 2C , the connecting portion 233a may be disposed in the soil layer 115 below the planting portion 110. Alternatively, the connecting portion 233a may be disposed above the soil layer 115 rather than below the planting portion 110. The connecting portion 233a may be a semicircular pipe shaped like a bucket, a culvert pipe, or a sprinkler tube. In this case, the connecting portion 233a has multiple holes for ventilation. The connecting portion 233a does not have to be tubular and may be formed using materials such as straw, rice husks, or gravel.

[0041] As shown in FIG. 2C , in this embodiment, the second air 202 is supplied from the connecting portion 233a (also called an air supply pipe) of the supply pipe 230 through the soil layer 115 to the planting section 110 provided above the soil layer 115. At this time, the second air 202 is supplied from below the plants. As a result, the plants are covered by the second air 202. This can protect the plants from heat due to sunlight and radiant heat from vehicles. Furthermore, the second air 202 contains a large amount of carbon dioxide. This can promote photosynthesis in the plants. Therefore, the plants can grow stably even when sunlight is insufficient due to vehicles.

[0042] 2. Second Embodiment In the first embodiment of the present invention, an example in which the supply pipe 230 is provided in the soil layer 115 has been described, but the present invention is not limited thereto. FIG. 4 is a cross-sectional schematic diagram of the parking area 100 of the parking lot greening system 10A as viewed from the rear side. As shown in FIG. 4, the third portion 233A (air outlet 233Ab) of the supply pipe 230 may be provided on the side of the greening protection unit 120 without the connecting portion 233a. In this case, the greening protection unit 120 in this embodiment may be provided extending further to the ground than in the first embodiment. The upper portion of the greening protection unit 120 may be provided at approximately the same height as the upper portion of the plants. In this case, the supply (blow) direction of the second air may be horizontal. Therefore, in this embodiment, the second air 202 is supplied laterally to the planting area 110 (plants).

[0043] 5 is a cross-sectional schematic diagram of the parking area 100 of the parking lot greening system 10B as viewed from the rear side. The connecting portion 233Ba (air supply pipe) of the third portion 233B of the supply pipe 230 may be provided in the planting area 110 above the soil layer 115. In this case, the connecting portion 233Ba (air supply pipe) may be provided exposed. Because the connecting portion 233Ba (air supply pipe) may be stepped on, the connecting portion 233Ba (air supply pipe) may be formed of an elastic member such as a rubber tube. In this case, the blowing direction of the second air 202 may be various, such as not only upward, but also downward, diagonally upward, or diagonally downward.

[0044] 3. Third Embodiment In this embodiment, a parking lot greening system different from that in the first embodiment will be described. Specifically, an example having a plurality of supply pipes will be described.

[0045] FIG. 6 is a diagram illustrating an overview of the first supply unit 200C in the parking lot greening system 10C according to this embodiment. In this embodiment, the supply pipe 230C of the first supply unit 200C includes a first supply pipe 232C1 and a second supply pipe 232C2 for the second portion 232C. Note that the first supply pipe 232C1 and the second supply pipe 232C2 may have portions corresponding to the first portion 231 and the third portion 233, respectively. In this embodiment, the second supply pipe 232C2 is covered with a heat insulating member 232C2a. Therefore, the temperature change rate of the second supply pipe 232C2 is smaller than the temperature change rate of the first supply pipe 232C1.

[0046] The supply pipe 230C may have a control valve 235 located upstream of the first supply pipe 232C1 and the second supply pipe 232C2. In this case, a thermostat valve, which is a temperature-controllable valve, may be used as the control valve 235. The control valve 235 is controlled to open and close in accordance with a set temperature when the second air 202 is released from the first supply unit 200. In this embodiment, the control valves 2113, 2133, and 235 can be collectively referred to as a control unit.

[0047] In this embodiment, in a hot environment (summer), the control valve 235 may be controlled to cause the second air 202 to pass through the first supply pipe 232C1, thereby increasing the temperature change of the second air 202 and making it lower than the outside air temperature. In addition, in a cold environment (winter), the control valve 235 may be controlled to cause the second air 202 to pass through the second supply pipe 232C2, thereby suppressing the temperature change of the second air 202 and controlling the temperature of the second air 202 to a temperature (for example, about 20°C) that is favorable for plant growth. By using this embodiment, the temperature of the second air 202 supplied can be controlled according to the season (environment), and the plant growth environment can be stabilized.

[0048] By using this embodiment, the temperature of the second air 202 to be supplied can be controlled in accordance with the temperature (season, environment), and the growing environment for plants can be stabilized.

[0049] 4. Fourth Embodiment In this embodiment, a parking lot greening system different from that in the first embodiment will be described. Specifically, an example having an irrigation unit will be described.

[0050] FIG. 7A is a schematic top view of the parking section 100D in the parking lot greening system 10D. FIG. 7B is a schematic cross-sectional view of the parking section 100D in the parking lot greening system 10D. As shown in FIGS. 7A and 7B, the parking lot greening system 10D further includes an irrigation section 300 in addition to the parking section 100 and the first supply section 200. The irrigation section 300 is provided around the parking section 100 (in this example, on the far side of the parking section 100). A portion of the irrigation section 300 is formed from materials such as gravel. The irrigation section 300 stores rainwater and supplies moisture to the soil layer 115 and the planting section 110 (plants). By including the irrigation section 300, the parking lot greening system 10D can prevent the soil layer 115 from drying out, supply moisture to the plants, and cool the plant surfaces by evaporation heat when water is released to the ground surface, thereby protecting the plants from heat from sunlight and radiant heat from vehicles. The irrigation section 300 may be supplied with groundwater, recycled water, or tap water.

[0051] In this embodiment, the soil layer 115 may be replaced with a material that allows water to permeate.

[0052] Furthermore, in one embodiment of the present invention, the first supply unit 200 may perform irrigation using the third portion 233, the connecting portion 233a, the connecting portion 233Ba, or the air outlet 233Ab of the supply pipe 230. Alternatively, the first supply unit 200 may supply moisture together with the second air 202. This makes it possible to supply the second air 202 to the plants while preventing the soil in the soil layer 115 from drying out. Furthermore, by using the first supply unit 200 in combination with the irrigation unit 300, the amount of water used for irrigation can be reduced.

[0053] 5. Fifth Embodiment In this embodiment, a parking lot greening system different from that in the first embodiment will be described. Specifically, an example in which the arrangement of the greening protection unit is different will be described.

[0054] FIG. 8 is a schematic top view of the parking area 100E in the parking lot greening system 10E. As shown in FIG. 8, in the parking lot greening system 10E, the greening protection unit 120E may include a third greening protection unit 121 in addition to the first greening protection unit 120L and the second greening protection unit 120R. The third greening protection unit 121 may be provided on the entrance side and / or the back side of the parking area 100. The third greening protection unit 121 may be provided to connect the first greening protection unit 120L and the second greening protection unit 120R. The third greening protection unit 121 can more efficiently protect plants from the heat carried by the vehicle and the radiant heat of gases emitted from the rear of the vehicle. As a result, plants can be prevented from burning.

[0055] FIG. 9 is a schematic top view of the parking area 100F of the parking lot greening system 10F. Furthermore, the greening protection unit 120F may include a fourth greening protection unit 122 in addition to the first greening protection unit 120L, the second greening protection unit 120R, and the third greening protection unit 121. The fourth greening protection unit 122 is provided near the center of the parking area 100F. The fourth greening protection unit 122 is provided to connect the first greening protection unit 120L and the second greening protection unit 120R. The inclusion of the fourth greening protection unit 122 more efficiently protects plants from the heat retained by the vehicle and the radiant heat of gases emitted from the rear of the vehicle. As a result, plants can be prevented from burning.

[0056] In this embodiment, the blowing direction of the second air 202 may be adjusted as appropriate so that the second air 202 is blown to the rear part of the vehicle (the part surrounded by the greening protection part 120F).

[0057] 6. Sixth Embodiment In this embodiment, a parking lot greening system having a control device, a detection unit, and a lighting unit will be described.

[0058] Fig. 10 is a block diagram showing an overview of a parking lot greening system 10G according to this embodiment. Fig. 11 is a schematic top view of a parking section 100G in the parking lot greening system 10G. As shown in Figs. 10 and 11, the parking lot greening system 10G includes a control device 400, a detection unit 500, and a lighting unit 600 in addition to the parking section 100 and the first supply unit 200.

[0059] 12 is a block diagram of the control device 400. The control device 400 is connected to the parking unit 100, the first supply unit 200, the detection unit 500, and the lighting unit 600. The control device 400 has at least a control unit 401, a memory unit 403, and a communication unit 405.

[0060] The control unit 401 controls the operation of each device in the parking lot greening system 1. The control unit 401 includes, for example, a processor equipped with an arithmetic processing device exemplified by a CPU (Central Processing Unit) and memories exemplified by a ROM (Read On Memory) and RAM (Random Access Memory). The control unit 401 controls each device.

[0061] The storage unit 403 may be a memory, a semiconductor memory such as an SSD (Solid State Drive), a magnetic recording medium (magnetic tape, magnetic disk, etc.), an optical recording medium, a magneto-optical recording medium, or a storage element that can store data. The storage unit 403 has a function of storing a control program and various information used in the control program.

[0062] The communication unit 405 includes a communication module, and transmits and receives information to and from each device under the control of the control unit 401. The communication unit 405 may be wireless or wired.

[0063] In addition to the control unit 401, memory unit 403, and communication unit 405, the control device 400 may also include a display unit, an operation unit (buttons, switches, keyboard, etc.), and an alarm unit (light, buzzer, etc.).

[0064] Returning to FIG. 11 , the explanation will be made. The detection unit 500 detects that a vehicle has been placed on the greening protection unit 120 (whether or not a car is parked). Specifically, the detection unit 500 may be a push switch, a weight sensor, a proximity sensor, or the like. The detection unit 500 detects whether or not the push switch is being pressed by the tire, and the weight of the car. The installation location of the detection unit 500 may be adjusted as appropriate as long as it can detect a vehicle. For example, the detection unit 500 is provided on the top surface of the greening protection unit 120, but may also be provided on a pillar-like object provided near each parking unit 100.

[0065] The lighting unit 600 is provided to promote photosynthesis of plants planted in the planting area 110. The type of lighting unit 600 is not particularly limited, but for example, a light-emitting diode (LED) element may be used. More specifically, using a red LED can further promote photosynthesis in plants. In this embodiment, the lighting unit 600 is installed in a part of the planting area 110, but it may also be installed in other locations.

[0066] Fig. 13 is a functional block diagram of the control unit 401. As shown in Fig. 13, the control unit 401 includes an acquisition unit 4011, a determination unit 4013, and an operation instruction unit 4015 as functional units.

[0067] The acquisition unit 4011 has a function of acquiring various information in the parking lot greening system 10G. Specifically, the acquisition unit 4011 acquires information on whether or not a car is parked from the detection unit 500. The acquisition unit 4011 may acquire various information at any time, or may acquire the information at predetermined time intervals.

[0068] The determination unit 4013 has a function of determining whether a predetermined condition is satisfied. For example, the determination unit 4013 determines whether a vehicle has been placed in the parking unit 100 based on information from the detection unit 500. The determination unit 4013 may also determine whether the time information has reached a set value or whether the temperature of the second air 202 has exceeded a set value (threshold value).

[0069] The operation instruction unit 4015 has a function of instructing the operation of each device. For example, the operation instruction unit 4015 instructs the first supply unit 200 and the lighting unit 600 to operate.

[0070] (Control Flow) Next, the control flow in this embodiment will be described with reference to Fig. 14, which is a control flow diagram in this embodiment.

[0071] First, the control unit 401 of the control device 400 instructs the detection unit 500 to perform a detection operation (step S101). The control unit 401 acquires detection information from the detection unit 500 (step S103). At this time, if the control unit 401 does not detect a vehicle (step S105; No), the process returns to step S103.

[0072] When a vehicle is detected (step S105; Yes), the control unit 401 instructs the lighting unit 600 to perform a lighting operation (step S105). Furthermore, the control unit 401 instructs the first supply unit 200 to supply the second air 202 (step S109). As long as a vehicle is detected (step S111; Yes), the supply of the second air 202 continues.

[0073] On the other hand, when the vehicle moves out of the parking section 100 and is no longer detected (step S111; No), the control section 401 instructs the lighting section 600 to turn off (step S113) and instructs the first supply section 200 to stop supplying the second air 202 (step S115).

[0074] Finally, if the processing is to be continued (step S117; Yes), the process returns to step S101, and if the processing is not to be continued (step S117; No), the control process ends.

[0075] By using this embodiment, it is possible to control the blowing of the second air 202 and the lighting unit 600 (LED) installed in the planting section 110 to light up when a vehicle is placed in the parking section 100.

[0076] In this embodiment, the control may be performed using the detection unit 500 and the lighting unit 600 without using the control device 400.

[0077] (Variation) Within the scope of the concept of the present invention, a person skilled in the art may conceive of various modifications and alterations, and it is understood that these modifications and alterations also fall within the scope of the present invention. For example, to the above-described embodiments, a person skilled in the art may appropriately add, delete, or modify components, or add, omit, or change conditions of processing, and these modifications are also included within the scope of the present invention as long as they include the gist of the present invention.

[0078] The control device 400 used in the sixth embodiment of the present invention may be used in combination with the control valve 2133 (control valve with timer) of the first embodiment and the control valve 235 (thermostat valve) of the third embodiment, thereby enabling precise control of opening and closing operations.

[0079] Moreover, the control device 400 of the sixth embodiment may be used in place of the control valve 2133 (control valve with a timer) of the first embodiment and the control valve 235 (thermostat valve) of the third embodiment. In this case, the control valve 2133 and the control valve 235 can perform opening and closing operations based on instructions (signals) transmitted from the control device 400.

[0080] Although the third embodiment of the present invention illustrates an example in which the second air is controlled to pass through either the first or second supply pipe depending on the temperature of the second air, the present invention is not limited to this. The control device 400 may also control the second air 202 to pass through either the first or second supply pipe based on the relationship between the temperature of the outside air and the temperature of the second air 202 generated by the generation unit 210. In this case, the parking lot greening system may have a first temperature sensor that detects the temperature of the outside air and a second temperature sensor that detects the temperature of the generated air. For example, if the outside air is 35°C and the temperature of the generated second air 202 is 35°C, the second air 202 may be controlled to pass through the first supply pipe 232C1 to cool the second air 202. Alternatively, if the outside air is 10°C and the temperature of the generated second air 202 is 35°C, the second air 202 may be controlled to pass through the second supply pipe 232C2 to prevent it from being cooled.

[0081] In addition, in the parking lot greening system, a part of the second supply pipe 232C2 may be connected to a part of the heating pipe, which makes it possible to heat the second air 202 in an environment where the outside air temperature is low and the temperature of the second air 202 changes greatly.

[0082] Furthermore, in the parking lot greening system, the top surfaces of the greening protection portion 120 and the soil layer 115 may be at approximately the same height, as shown in Fig. 15. Since no recess is formed in the parking area, there are no restrictions on tire entry, making parking easier.

[0083] In one embodiment of the present invention, instead of chemical absorption or chemical adsorption, membrane separation, cryogenic separation, electrochemical, or chemical adsorption may be used. Membrane separation can separate and capture CO2 from air by using a thin film such as a polymer membrane or an ionic liquid membrane to determine the difference in permeation rate, driven by a pressure difference. Cryogenic separation can separate and capture CO2 by cooling air to the freezing point of O2 and turning the CO2 into dry ice. Electrochemical separation can separate and capture CO2 by an electrochemical method using electrodes, etc. [Explanation of symbols]

[0084] 10···Parking lot greening system, 100...Parking section, 10A to G··Parking lot greening system, 110···Planting section, 115···Soil layer, 120, 120E, 120F···Greening protection section, 120L···First greening protection section, 120R···Second greening protection section, 121···Third greening protection section, 122···Fourth greening protection section, 200, 200C···First supply section, 210···Generation section, 211···First air supply section, 213···Heat supply section, 215···Carbon dioxide adsorption and release section, 230, 230C···Supply pipe, 231···First section, 232, 232C···Second section, 232C1···First supply section Supply pipe, 232C2...second supply pipe, 232C2a...insulating member, 233...third section, 233a...connecting section, 233A, 233B, 233L, 233R...third section, 233Ab...air outlet, 233Ba...connecting section, 235...control valve, 300...irrigation section, 400...control device, 401...control section, 403...storage section, 405...communication section, 500...detection section, 600...lighting section, 2111...piping, 2113...control valve, 2131...heating piping, 2133...control valve, 4011...acquisition section, 4013...determination section, 4015...operation instruction section

Claims

1. a parking area having a planting area where plants are planted and on which a vehicle can be placed; A first supply unit that emits second air containing a carbon dioxide concentration higher than that of first air corresponding to atmospheric air to the plant, Parking lot greening system.

2. The first supply unit includes a generator that generates the second air. A control unit that controls the generation of the second air by the generation unit, The parking lot greening system according to claim 1.

3. The generation unit a carbon dioxide adsorption / release unit that adsorbs or desorbs carbon dioxide depending on temperature; a second supply unit that supplies heat to the carbon dioxide adsorption / release unit, The control unit controls the operation of the second supply unit. The parking lot greening system according to claim 2.

4. the control unit controls the operation of the second supply unit in accordance with time information. The parking lot greening system according to claim 3.

5. The first supply unit includes a first supply pipe that guides the second air generated in the generation unit to the planting unit; a second supply pipe having a temperature change rate different from that of the first supply pipe, the second air generated by the generating unit; the control unit controls the second air generated by the generation unit in accordance with a set temperature so that the second air passes through either the first supply pipe or the second supply pipe. The parking lot greening system according to claim 2.

6. the second supply pipe is covered with a heat insulating material; The parking lot greening system according to claim 5.

7. the parking area includes a greening protection area that is provided adjacent to the planting area and protects plants from impacts caused by tires of the vehicle; The first supply unit supplies the second air through a soil layer provided below the greening protection unit and the planting unit. The parking lot greening system according to claim 1.

8. The first supply unit supplies the second air and moisture to the soil layer. The parking lot greening system according to claim 7.

9. Further comprising an irrigation unit that supplies water to the plant through the soil layer, The parking lot greening system according to claim 7.

10. The parking area includes: a greening protection section provided adjacent to the planting section to protect the plants from impacts caused by tires of the vehicle; a detection unit that detects that the vehicle has been placed on the greening protection unit; A lighting unit provided in the parking area, The lighting unit lights up and the first supply unit supplies the second air based on the information detected by the detection unit. The parking lot greening system according to claim 1.

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