Measurement module

Abstract

To provide a measuring module capable of continuously and accurately detecting a state of a plant even if it is a tall plant.SOLUTION: A measuring module comprises: a hollow support rod which is erected so as to support a plant; at least one introduction port which communicates the inside with the outside of the support rod; at least one odor sensor which is arranged in a position corresponding to the at least one introduction port inside the support rod, and detects odor of a plant; and a pump which is connected to the support rod, and sucks in outside air from the introduction port to the inside of the support rod.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] This disclosure relates to a measurement module.

Background Art

[0002] Patent Document 1 discloses an apparatus for non-destructively measuring metabolites of plants. The apparatus measures metabolites of a plant by irradiating a part of a pedicel or petiole of the plant with light and measuring the difference in the amount of light between the transmitted or reflected light and the irradiated light. When measuring an upward-growing plant, the apparatus is fixed to at least one of the petiole and pedicel, which are the passageways of the metabolites of the plant, and is supported by a support column.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the apparatus described in Patent Document 1, only specific parts of a plant, such as leaves and fruits, can be measured. Therefore, with the apparatus described in Patent Document 1, there is a possibility that the state of a plant several meters tall, such as a tomato plant, cannot be continuously measured. This disclosure provides a measurement module that can continuously detect the state of a tall plant with a simple configuration.

Means for Solving the Problems

[0005] A measurement module relating to one aspect of this disclosure comprises a hollow post, at least one inlet, at least one odor sensor, and a pump. The post is erected to support a plant. At least one inlet communicates the inside and outside of the post. At least one odor sensor is positioned inside the post corresponding to at least one inlet and detects the odor of the plant. The pump is connected to the post and draws outside air into the post through the inlet. [Effects of the Invention]

[0006] According to each aspect and embodiment of this disclosure, it is possible to provide a measurement module that can continuously detect the condition of even tall plants with a simple configuration. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a schematic diagram showing an example of a measurement module according to the embodiment. [Figure 2] Figure 2 is a schematic diagram showing the inside of the measurement module shown in Figure 1. [Figure 3] Figure 3 is a schematic diagram showing the inside of the measurement module for the modified shape. [Modes for carrying out the invention]

[0008] [Summary of the embodiments of this disclosure] First, an overview of the embodiments of this disclosure will be provided.

[0009] (Clause 1) A measuring module relating to one aspect of the present disclosure comprises a hollow column, at least one inlet, at least one odor sensor, and a pump. The column is erected to support a plant. At least one inlet communicates the inside and outside of the column. At least one odor sensor is positioned inside the column at a location corresponding to at least one inlet and detects the odor of the plant. The pump is connected to the column and draws outside air into the column from the inlet.

[0010] In this measurement module, a hollow support column is erected to support a plant. Inside the column, odor sensors are positioned to detect the plant's scent at locations corresponding to at least one inlet that connects the inside and outside of the column. A pump connected to the column draws outside air into the column through the at least one inlet. The plant is supported by the column, and odor substances emitted from the plant are drawn into the column through the at least one inlet by the pump and detected by at least one odor sensor. The odor substances emitted from the plant change depending on the plant's condition. By detecting odor substances with odor sensors, this measurement module eliminates the need for detailed preparation, such as precisely determining the measurement site and illuminating the measurement site, which is required when detecting the plant's condition using light. Therefore, this measurement module can continuously detect the plant's condition even if the measurement site shifts due to plant growth or external forces such as wind. Furthermore, this measurement module utilizes the same support structure for plants as the pathway that guides odor substances to the odor sensor, resulting in a design with fewer components compared to a system where the piping and support structure are separate. Therefore, this measurement module allows for continuous detection of the plant's condition with a simple configuration, even when the plant is tall.

[0011] (Clause 2) In the measurement module described in Clause 1, the support column has a hollow columnar main body and at least one hollow box-shaped housing that communicates with the inside of the main body, at least one inlet connects at least one housing to the outside, and at least one odor sensor may be placed inside at least one housing. In this case, the measurement module can take in odor substances into the housing and increase the concentration of odor substances in the atmosphere inside the housing. Therefore, the measurement module can detect the condition of the plant with greater accuracy.

[0012] (Clause 3) In the measuring module described in Clause 2, the connection portion between each housing and the main body may be smaller in diameter than each housing. In this case, the measuring module can be made more accommodating, for example, the plant itself and strings used to secure the plant to a support, to the connection portion.

[0013] (Clause 4) In the measurement module described in Clause 2 or 3, at least one housing may be detachably attached to the main body. In this case, the person taking the measurement can place the odor sensor at a desired location, such as where the leaves of a plant are attached.

[0014] (Clause 5) In the measurement module described in Clause 1, the support column is hollow and columnar, and at least one inlet may be provided on the side of the support column. In this case, it is not necessary to provide space outside the support column for placing the odor sensor. Therefore, this measurement module can be made more space-saving.

[0015] (Clause 6) In the measurement module described in any one of Clauses 1 to 5, the inlet may include a tapered surface that widens from the inside to the outside of the support. In this case, the measurement module can take in more air from around the plant into the inside of the support.

[0016] (Clause 7) The measurement module described in any one of Clauses 1 to 6 may further include an environmental sensor that detects at least one of ambient temperature, humidity, and carbon dioxide concentration. In this case, the measurement module can detect the condition of the plant based on the detection results of the environmental sensor.

[0017] (Clause 8) In the measurement module described in any one of Clauses 1 to 7, at least one inlet may be a plurality of inlets, and at least one odor sensor may be a plurality of odor sensors, each of which odor sensors may be positioned corresponding to each of the plurality of inlets. In this case, the measurement module can detect odors at multiple locations on the plant, thereby enabling more accurate detection of the plant's condition.

[0018] (Article 9) In the measurement module described in Article 8, the plurality of inlets and the plurality of odor sensors may be arranged at equal intervals in the height direction of the support column. In this case, since the measurement module can detect the odors at a plurality of locations from the bottom to the top of the plant, even for a tall plant, the state of the plant can be detected more accurately.

[0019] [Examples of Embodiments of the Present Disclosure] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and redundant descriptions are omitted. The dimensional ratios in the drawings do not necessarily match those in the description.

[0020] [An Example of a Measurement Module] FIG. 1 is a configuration diagram schematically showing an example of a measurement module 1 according to an embodiment. FIG. 2 is a diagram schematically showing the inside of the measurement module 1 shown in FIG. 1. The measurement module 1 shown in FIGS. 1 and 2 is a module for measuring the state of a plant T while supporting the plant T. Examples of the state of the plant T include the health state of the plant T and the growth state of the plant T. The plant T is a plant to be measured, and for example, it is a tomato, an apple, or the like. As an example, the plant T is cultivated in a box-shaped medium B (ground). In FIG. 2, the illustration of the medium B is omitted.

[0021] The measurement module 1 is configured to be able to communicate with an external server (not shown) via wireless or wired communication, and is configured to be able to transmit various data such as measured information to the server. The server may be configured as a computer system including a processor such as a CPU (Central Processing Unit), a memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory), an input / output device such as a touch panel, a mouse, a keyboard, and a display, and a communication device such as a network card. The server realizes a function of recognizing the state of the plant T by operating each hardware under the control of the processor based on a computer program stored in the memory.

[0022] The measurement module 1 includes a support column 2, a plurality of inlets 3, a plurality of odor sensors 4, a plurality of environmental sensors 5, a gas pipe 6, and a pump 7. The support column 2 is hollow and is erected in the culture medium B so as to support the plant T. The support column 2 has a main body portion 21 and a plurality of storage portions 22.

[0023] The main body portion 21 is the erected portion of the support column 2. The main body portion 21 is, for example, disposed near the stem of the plant T. The main body portion 21 may be erected in the culture medium B, or may be erected adjacent to the culture medium B when the culture medium B is small or when it is desired to prevent damage to the culture medium B. As shown in FIG. 2, the main body portion 21 has a hollow columnar shape. The interior 21a of the main body portion 21 is a cavity extending in the height direction of the main body portion 21. When the measurement module 1 is provided in a facility such as a vinyl house, the upper portion of the main body portion 21 may be tied to a fixing string 24 of the plant T that extends horizontally in the ground above the plant T.

[0024] Multiple housing sections 22 are arranged on the outside of the main body 21 and communicate with the interior 21a of the main body 21. Each housing section 22 is a part of the support column 2 that houses the odor sensor 4. Each housing section 22 has a hollow box shape. The interior 22a of each such housing section 22 includes space for housing each odor sensor 4. Each housing section 22 is, for example, small enough to be held and handled by hand. As shown in Figure 2, the corners of each housing section 22 are chamfered. Each housing section 22 may be integrally formed with the main body 21, or it may be detachably attached to the main body 21.

[0025] The support column 2 further has a plurality of connecting parts 23. Each connecting part 23 is positioned between each housing part 22 and the main body part 21, connecting each housing part 22 and the main body part 21. Each housing part 22 communicates with the interior 21a of the main body part 21 via each connecting part 23. Each connecting part 23 is smaller in diameter than each housing part 22. In other words, the opening area of ​​each connecting part 23 (the area of ​​the opening perpendicular to the direction in which the connecting part 23 extends from the main body part 21) is smaller than the opening area of ​​each housing part 22 (the area of ​​the opening perpendicular to the direction in which it extends). By reducing the diameter of each connecting part 23, for example, plants T can more easily wrap around the support column 2, and strings 24 for fixing plants T to the support column 2 can be more easily wrapped around each connecting part 23.

[0026] Thus, inside the support column 2, the interiors 22a of the multiple hollow housing sections 22 are connected to the interior 21a of the hollow main body section 21 via multiple connecting sections 23. As a result, when the pump 7, which will be described later, sucks air from the interior 21a of the main body section 21, airflow channels are formed inside the support column 2, allowing air to flow from each housing section 22 towards the main body section 21.

[0027] Multiple inlets 3 connect the inside 2a of the support column 2 to the outside. In this embodiment, each inlet 3 is formed in each housing section 22. Each inlet 3 is, for example, an opening that connects the housing section 22 to the outside. As an example, each inlet 3 is located in the housing section 22 on the side opposite to the main body section 21. The inlet 3 includes a tapered surface 31. The tapered surface 31 widens from the inside 2a of the support column 2 (more specifically, the inside 22a of the housing section 22) to the outside. In other words, at least a portion of the inlet 3 is a countersunk hole. By including the tapered surface 31, the inlet 3 can draw more air from around the plant T into the inside 2a of the support column 2.

[0028] Multiple odor sensors 4 are provided on the support column 2. In this embodiment, each odor sensor 4 is housed inside 22a of each housing section 22, as shown in Figure 2. As an example, each odor sensor 4 is positioned on the bottom surface of the inside 22a side of each housing section 22 so as to be located near each inlet 3. In this way, each odor sensor 4 is positioned inside 2a of the support column 2 at a position corresponding to each inlet 3.

[0029] Each odor sensor 4 detects the odor of plant T. More specifically, each odor sensor 4 detects odor substances contained in plant T. The odor substances contained in plant T are not limited to substances directly emitted from plant T, but also include substances emitted from foreign matter attached to plant T, and substances emitted from foreign matter attached in the vicinity of plant T.

[0030] The substances detected by the odor sensor 4 include, for example, at least one of green fragrance substances, terpene substances, sulfur-based substances, and moldy odor substances. In addition to green fragrance substances, terpene substances, sulfur-based substances, and moldy odor substances, the odor sensor 4 may also detect other substances.

[0031] Green fragrance substances are volatile substances such as aldehydes, alcohols, and their esters, which have a six-carbon skeleton. Specifically, green fragrance substances include hexenol (green leaf alcohol) and sexienal (green leaf aldehyde). Terpene substances are (C5H8) nThese are organic compounds with unsaturated hydrocarbons as their basic structure, and substances such as terpene alcohols. Specifically, terpene substances include α-pinene and β-caryophyllene. Sulfur-based substances are sulfur compounds such as hydrogen sulfide, which emit the odor of decaying plants. Specifically, sulfur-based substances include dimethyl sulfide. Moldy odor substances include mold, trichloroanisole, geosmin, and methylisoborneol.

[0032] The odor sensor 4 can detect green fragrance substances, allowing the server to detect the state of plant T being damaged by insects. Furthermore, the odor sensor 4 can detect terpene substances, allowing the server to detect the state of environmental stress on plant T. Additionally, the odor sensor 4 can detect sulfur-based substances, allowing the server to detect the state of plant T's decay. Finally, the odor sensor 4 can detect mold growth on plant T, allowing the server to detect mold odor.

[0033] The odor sensor 4 is, for example, a sensor in which an organic film that reacts with the detected substance is coated on a metal semiconductor. The organic film of the odor sensor 4 includes, for example, polyaniline. The metal semiconductor of the odor sensor 4 includes, for example, tin oxide (SnO2). However, the odor sensor 4 only needs to be a sensor capable of detecting odor substances. If the odor sensor 4 is to detect multiple different odor substances, it may be composed of multiple sensors.

[0034] Multiple environmental sensors 5 are installed on the support column 2. Each environmental sensor 5 is a sensor for detecting the growing environment of the plant T. Each environmental sensor 5 detects at least one environmental value of the temperature, humidity, and carbon dioxide concentration around the plant T. Each environmental sensor 5 includes a thermometer if it detects temperature as an environmental value, and a hygrometer if it detects humidity as an environmental value. Each environmental sensor 5 includes a carbon dioxide concentration meter if it detects carbon dioxide as an environmental value. In addition, each environmental sensor 5 may further detect environmental values ​​other than temperature, humidity, and carbon dioxide concentration around the plant T. Each environmental sensor 5 is attached, for example, to the outer wall surface of each housing section 22. The position of each environmental sensor 5 is not limited to any position where the growing environment of the plant T can be detected.

[0035] In this embodiment, the multiple housing sections 22, multiple inlets 3, multiple odor sensors 4, and multiple environmental sensors 5 are arranged at equal intervals from each other in the height direction of the main body 21.

[0036] As shown in Figure 2, the gas pipe 6 is hollow and tubular, and is positioned between the end of the main body 21 on the culture medium B side and the pump 7. The gas pipe 6 is connected to both the end of the main body 21 on the culture medium B side and the pump 7. The pump 7 is connected to the support column 2 via the gas pipe 6. Specifically, the pump 7 communicates with the interior 21a of the main body 21 via the gas pipe 6. The pump 7 is positioned, for example, adjacent to the main body 21 of the support column 2. The pump 7 may be installed next to the culture medium B, or it may be installed above the culture medium B. Note that the pump 7 is not shown in Figure 1.

[0037] Pump 7 is electrically connected to a power supply device (not shown), such as a battery or an external power supply, and is driven by power supplied from such device. When driven, pump 7 draws in air from inside the gas pipe 6, air from inside the main body 21a, and consequently air from inside each housing section 22a. In other words, pump 7 draws outside air into the inside 2a of the support column 2 through each inlet 3 formed in each housing section 22.

[0038] [Measurement module operation] Next, an example of the operation of the measurement module 1 will be described. First, in the culture medium B in which the plant T is planted, the main body 21 of the support pole 2 is erected adjacent to the stem of the plant T. Then, the plant T is supported by the support pole 2. Specifically, the plant T is tied to the main body 21 of the support pole 2 and to multiple connecting parts 23, etc., by string 24, etc. This guides the plant T to grow along the support pole 2. In addition, the end of the main body 21 on the culture medium B side is connected to the pump 7 via a gas pipe 6. Each odor sensor 4 and each environmental sensor 5 are connected to the server in a communication manner, and the pump 7 is electrically connected to a power supply device.

[0039] Next, when the pump 7 is activated, the airflow inside the support column 2a is controlled. Specifically, the pump 7 draws in air from inside the gas pipe 6, air from inside the main body 21a, and consequently air from inside each housing section 22a. As a result, outside air is drawn into the inside 22a of each housing section 22 through the inlets 3 formed in each housing section 22. In this way, while the pump 7 is activated, the measurement module 1 continues to receive outside air from around the plant T into the inside 2a of the support column 2. In other words, while the pump 7 is activated, the odor substances of the plant T are more likely to come into contact with each odor sensor 4. In this state, each odor sensor 4 detects the odor of the plant T, and each environmental sensor 5 detects at least one environmental value. The data detected by each odor sensor 4 and the data detected by each environmental sensor 5 are transmitted to the server.

[0040] Through the operation of the measurement module 1 described above, the state of plant T can be determined based on the data detected by each odor sensor 4, while also taking into account data from at least one environmental value. The server may store the placement location of each odor sensor 4 and associate the placement location of each odor sensor 4 with the data detected by each odor sensor 4. By associating the placement location of each odor sensor 4 with the detected data, the server can understand and manage the state of plant T in the height direction.

[0041] If each housing section 22 is detachably attached to the main body section 21, the mounting position of each housing section 22 may be changed as appropriate by the person taking the measurements in accordance with the growth of the plant T. The person taking the measurements can place each odor sensor 4 at a desired location, for example, where the leaves Ta of the plant T are attached.

[0042] [Summary of Embodiments] In the measurement module 1, a hollow support column 2 is erected in the culture medium B to support the plant T. Inside the support column 2a, odor sensors 4 are positioned at locations corresponding to each inlet 3 that connects the inside 2a of the support column 2 to the outside. A pump 7 connected to the support column 2 draws outside air into the inside 2a of the support column 2 through each inlet 3. The plant T is supported by the support column 2, and odor substances emitted from the plant T are drawn into the inside 2a of the support column 2 via each inlet 3 by the suction of the pump 7 and detected by each odor sensor 4. The odor substances emitted from the plant T change according to the state of the plant T. By detecting odor substances with odor sensors 4, this measurement module 1 eliminates the need for prior preparation, such as precisely determining the measurement site and shining light on the measurement site, compared to detecting the state of the plant T using light. Therefore, this measurement module 1 can continuously detect the state of the plant T even if the position of the measurement site shifts due to the growth of the plant T or the application of external forces such as wind. Furthermore, this measurement module 1 utilizes the support column 2 that supports the plant T as the channel for guiding odor substances to the odor sensor 4, allowing it to be constructed with fewer parts compared to a system where the piping and support column 2 are provided separately. Therefore, with this measurement module 1, even when the plant T is tall, the condition of the plant T can be continuously detected with a simple configuration.

[0043] The measurement module 1 detects odor substances using the odor sensor 4. Therefore, the measurement module 1 can obtain data that more directly reflects the biological information of the plant T compared with visual data obtained using a device that visually monitors the plant T, such as a camera.

[0044] In the measurement module 1, the interior 21a of the main body 21 is in communication with multiple housing sections 22. Therefore, even with only one pump 7, it is possible to control the airflow inside 22a of each housing section 22. Thus, the measurement module 1 can efficiently detect odor substances from plants T.

[0045] In addition to its function as a support for the plant T and the odor sensor 4, the support column 2, with its hollow interior 2a, also has the function of improving the detection capability of the odor sensor 4 together with the pump 7. Therefore, the measurement module 1 can incorporate all three of the above functions into a single support column 2.

[0046] The measurement module 1 can take in odor substances into each containment section 22 and increase the concentration of odor substances in the atmosphere inside each containment section 22a. Therefore, the measurement module 1 can detect the state of plant T with greater accuracy.

[0047] The measurement module 1 can detect odors at multiple locations on the plant T by positioning each odor sensor 4 at a location corresponding to each inlet 3. Therefore, the measurement module 1 can detect the condition of the plant T with greater accuracy.

[0048] The measurement module 1 has multiple inlets 3 and multiple odor sensors 4 arranged at equal intervals in the height direction of the support column 2, allowing it to detect odors at multiple locations on the plant T from bottom to top. Therefore, the measurement module 1 can detect the condition of the plant T with greater accuracy, even for tall plants T.

[0049] Generally, plants T wither and die starting from the lower leaves Ta in the plant's height direction. Also, the leaves Ta at the higher parts of the plant T are new leaves. Given this premise, for example, if the scent of the leaves Ta at the higher parts differs from the scent of the leaves Ta at other parts, it suggests that the plant T is suffering from disease, herbivory, etc. In this regard, measurement module 1 can detect scents at multiple locations on the plant T from bottom to top, so it can detect early even if the health of a tall plant T deteriorates.

[0050] [Differentiation] Although various exemplary embodiments have been described above, the invention is not limited to the above-described exemplary embodiments, and various omissions, substitutions, and modifications may be made.

[0051] In the above embodiment, a plurality of inlet ports 3, a plurality of housing sections 22, a plurality of odor sensors 4, and a plurality of environmental sensors 5 were described, all of which were arranged at equal intervals in the height direction of the support column 2. However, the plurality of inlet ports 3, a plurality of housing sections 22, a plurality of odor sensors 4, and a plurality of environmental sensors 5 do not necessarily have to be arranged at equal intervals. Also, the number of inlet ports 3, a plurality of housing sections 22, a plurality of odor sensors 4, and a plurality of environmental sensors 5 may each be just one. In that case, one housing section 22 may be attached to the main body 21, one odor sensor 4 housed in the housing section 22 may be positioned at a location corresponding to one inlet port 3, and one environmental sensor 5 may be positioned on the outer wall surface of the housing section 22.

[0052] In the above embodiment, each environmental sensor 5 was attached to the outer wall of each housing 22. However, the position of each environmental sensor 5 is not limited. Each environmental sensor 5 may be placed, for example, inside 22a of each housing 22. In this case, since each environmental sensor 5 detects environmental values ​​in an environment where the airflow is controlled by the pump 7, the measurement module 1 can reduce variations in environmental values.

[0053] The support column 2 does not need to have multiple connection parts 23. In that case, each housing part 22 may be directly connected to the main body part 21. Each inlet 3 does not need to include a tapered surface 31. The measurement module 1 does not need to have a gas pipe 6. In that case, the main body part 21 may be directly connected to the pump 7. The measurement module 1 does not need to have an environmental sensor 5.

[0054] The configuration of the support column according to this disclosure is not limited to the above embodiment. Figure 3 is a schematic diagram showing the interior of a modified measurement module 1A. In the example shown in Figure 3, the support column 2A is hollow and columnar, and a plurality of inlet openings 3A are provided on the side of the support column 2A. A plurality of odor sensors 4A are arranged inside 2b of the support column 2A. Specifically, each odor sensor 4A is positioned inside 2b of the support column 2A at a location corresponding to each inlet opening 3A. As an example, each odor sensor 4A is fixed to a plate H extending from the inner wall of the support column 2A in a direction perpendicular to the height direction of the support column 2A. However, the method of fixing each odor sensor 4A is not limited. According to this modified configuration, it is not necessary to provide space outside the support column 2A for arranging the odor sensors 4A. Therefore, the measurement module 1A can be made more space-saving. In addition, the measurement module 1A can be made more stable in terms of its center of gravity. [Explanation of symbols]

[0055] 1,1A...Measurement module, 2,2A...Support column, 2a,2b...Inside of support column, 3,3A...Inlet, 4,4A...Odor sensor, 5...Environmental sensor, 7...Pump, 21...Main body, 21a...Inside of main body, 22...Housing section, 22a...Inside of housing section, 23...Connection section, 31...Tapered surface, T...Plant.

Claims

1. A hollow support structure erected to support plants, At least one inlet connecting the inside and outside of the support column, The support column is positioned inside the support column at a location corresponding to the at least one inlet, and includes at least one odor sensor for detecting the scent of the plant, A pump connected to the support column, which draws outside air into the interior of the support column from the inlet, A measuring module equipped with the following features.

2. The aforementioned support column is A hollow columnar main body, It has at least one hollow box-shaped housing that communicates with the inside of the main body, The at least one inlet connects the at least one housing section to the outside, The measurement module according to claim 1, wherein the at least one odor sensor is disposed inside the at least one housing.

3. The measuring module according to claim 2, wherein the connection portion between each housing and the main body is smaller in diameter than each housing.

4. The measurement module according to claim 2, wherein the at least one housing is detachably attached to the main body.

5. The aforementioned support column has a hollow column shape, The measurement module according to claim 1, wherein the at least one inlet is provided on the side of the support column.

6. The measurement module according to any one of claims 1 to 5, wherein the inlet includes a tapered surface that widens from the inside of the support column toward the outside.

7. The measurement module according to any one of claims 1 to 5, further comprising an environmental sensor for detecting at least one of ambient temperature, humidity, and carbon dioxide concentration.

8. The aforementioned at least one inlet is a plurality of inlets, The aforementioned at least one odor sensor is a plurality of odor sensors, The measurement module according to any one of claims 1 to 5, wherein each of the plurality of odor sensors is positioned at a location corresponding to each of the plurality of inlets.

9. The measurement module according to claim 8, wherein the plurality of inlets and the plurality of odor sensors are arranged at equal intervals in the height direction of the support column.

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