Exhaust system

Abstract

To perform efficient exhaust of polluted air depending on the state of polluted air emitted from a pollution source.SOLUTION: A control device 10 is configured to acquire, from a state detection device 30, distribution data representing a distribution state of polluted air when the polluted air from a contamination source is exhausted with an exhaust device 40, and to control at least one of the volume and direction of air in a jet flow state sent from a blower device 20 to guide the polluted air toward the exhaust device 40, based on the acquired distribution data.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a control device, a control method, a control program, and an exhaust system. [Background technology]

[0002] In workplaces such as factories, polluted air containing harmful substances may be discharged from pollution sources such as production equipment. Generally, an exhaust system is installed above the pollution source, and the polluted air is exhausted by the exhaust system.

[0003] Regarding technology for exhausting contaminated air, for example, Patent Document 1 describes an auxiliary exhaust device for guiding contaminated air in a desired direction. An exhaust device is provided above the auxiliary exhaust device, and a pollution source that generates contaminated air is placed on the upper surface of the auxiliary exhaust device. The auxiliary exhaust device ejects a certain amount of air from below the pollution source, and this ejected air guides the contaminated air toward the exhaust device above. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-186892 Summary of the Invention [Problem to be solved by the invention]

[0005] According to the technology described in Patent Document 1, there is a certain space between the auxiliary exhaust device and the exhaust device, and contaminated air moves through this space from below to above. Therefore, if there is a disturbance due to an air current from the side of this space, the contaminated air will be blown to the side, making it difficult for the exhaust device to capture it. Therefore, in order for the exhaust device to be able to capture the contaminated air, the auxiliary exhaust device must always operate at a certain air volume or more regardless of the state of the contaminated air, which may not be efficient from the viewpoint of energy conservation.

[0006] The present disclosure has been made in consideration of the above points, and aims to provide a control device, a control method, a control program, and an exhaust system that can efficiently exhaust polluted air according to the state of the polluted air generated from a pollution source. [Means for solving the problem]

[0007] A control device according to one aspect of the present disclosure includes an acquisition unit that acquires distribution data representing the distribution state of the contaminated air from a state detection device when the contaminated air generated from a pollution source is exhausted by an exhaust device, and a control unit that is capable of controlling at least one of the volume and direction of the jet-like air sent from a blower device to guide the contaminated air to the exhaust device in accordance with the distribution data acquired by the acquisition unit.

[0008] According to this aspect, the contaminated air can be efficiently exhausted according to the state of the contaminated air generated from the pollution source. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to efficiently exhaust contaminated air according to the state of the contaminated air generated from the pollution source. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a side view schematically showing an example of the configuration of an exhaust system according to a first embodiment. [Figure 2] 2 is a block diagram showing an example of a hardware configuration of a control device according to the first embodiment. FIG. [Figure 3] 2 is a block diagram showing an example of a functional configuration of a control device according to the first embodiment. FIG. [Figure 4] 1A is a diagram showing an example of a configuration in which a state detection device is integrally provided with a blower, and FIG. 1B is a plan view showing a state in which the multiple blowers shown in FIG. 1A are arranged at 90-degree intervals around a production device. [Figure 5] FIG. 10 is a front view showing an example of a control value screen according to the embodiment. [Figure 6] FIG. 4 is a diagram illustrating an example of a data table according to the embodiment. [Figure 7] FIG. 1 is a diagram illustrating an example of a trained model according to an embodiment. [Figure 8] 5 is a flowchart showing an example of a processing flow by a control program according to the first embodiment. [Figure 9] FIG. 10 is a side view schematically showing an example of a configuration in which a plurality of exhaust systems according to a second embodiment are arranged. DETAILED DESCRIPTION OF THE INVENTION

[0011] An example of an embodiment of the technology of the present disclosure will be described in detail below with reference to the drawings. Note that components and processes that perform similar operations, actions, and functions are given the same reference numerals throughout the drawings, and duplicated descriptions may be omitted as appropriate. Each drawing is merely a schematic illustration to allow a sufficient understanding of the technology of the present disclosure. Therefore, the technology of the present disclosure is not limited to the illustrated examples. Furthermore, in this embodiment, descriptions of configurations that are not directly related to the technology of the present disclosure or well-known configurations may be omitted.

[0012] [First embodiment] FIG. 1 is a side view that schematically shows an example of the configuration of an exhaust system 100 according to the first embodiment.

[0013] As shown in FIG. 1 , a production device 50 is an example of a pollution source, and generates polluted air Pa containing harmful substances such as, but not limited to, volatile organic compounds (VOCs). The exhaust system 100 is an exhaust system that exhausts the polluted air Pa generated by the production device 50. The exhaust system 100 is mainly installed indoors in a factory or the like. The exhaust system 100 is provided to the side and above the production device 50, and includes an exhaust device 40, a blower device 20, a state detection device 30, and a control device 10.

[0014] An exhaust device 40 is provided above the production device 50, and a certain space exists between the production device 50 and the exhaust device 40. The contaminated air Pa moves through this space from the production device 50 toward the exhaust device 40.

[0015] The exhaust device 40 exhausts the contaminated air Pa generated by the production device 50. Specifically, the exhaust device 40 sucks in the contaminated air Pa generated by the production device 50 and exhausts the contaminated air Pa within a capture area Rt. The capture area Rt is an area in which the exhaust device 40 can suck in the contaminated air Pa, and is determined according to the performance of the exhaust device 40. The configuration of the exhaust device 40 is not particularly limited, but as an example, it is desirable to use an auxiliary jet type exhaust device that can perform more efficient exhaust, as shown in FIG. 1.

[0016] The auxiliary jet type exhaust device 40 includes an exhaust port 41, an exhaust fan 42, an exhaust duct 43, a jet air outlet 44, an auxiliary jet fan 45, and an air intake duct 46. The exhaust port 41 is connected to the exhaust fan 42 via the exhaust duct 43. By operating the exhaust fan 42, contaminated air Pa in the capture area Rt is sucked in through the exhaust port 41. The jet air outlet 44 is provided around the exhaust port 41 and is connected to the auxiliary jet fan 45 via the air intake duct 46. By operating the auxiliary jet fan 45, air in a jet state is radially discharged from the jet air outlet 44.

[0017] The jet air discharged from the jet air outlet 44 attracts the surrounding contaminated air Pa, restricting the suction range of the exhaust port 41 and increasing the suction wind speed on the central axis of the exhaust port 41. Therefore, compared to a general exhaust device without an auxiliary jet, the contaminated air Pa can be exhausted more efficiently.

[0018] By using the auxiliary jet type exhaust device 40, the contaminated air Pa in the capture region Rt can be exhausted more efficiently.

[0019] The condition detection device 30 detects distribution data that represents the distribution state of the contaminated air Pa. The condition detection device 30 is, for example, at least one of a visible light camera, a thermal camera, an infrared camera, a concentration sensor, a temperature sensor, and a humidity sensor. That is, the condition detection device 30 may be configured with one or more cameras such as a visible light camera, a thermal camera, an infrared camera, etc., or may be configured with one or more multi-point sensors such as a concentration sensor, a temperature sensor, a humidity sensor, etc. The condition detection device 30 may also be configured with a combination of one or more cameras and multi-point sensors. Furthermore, the condition detection device 30 can accurately detect the distribution state of the contaminated air Pa by using various cameras and sensors individually or in combination.

[0020] 1, the state detection device 30 is provided separately from the air blower 20. Alternatively, the state detection device 30 may be provided integrally with the air blower 20, as will be described later. The installation location of the state detection device 30 is not particularly limited, but it may be installed in a location where the entire space between the production device 50 and the exhaust device 40 is the object to be photographed or detected, and where the distribution state of the contaminated air Pa moving through the space can be detected.

[0021] The blower 20 sends a jet of air (hereinafter referred to as "jet air") Ar toward the contaminated air Pa, guiding the contaminated air Pa into the capture area Rt. There may be one or more blower devices 20. When multiple blower devices 20 are provided, the multiple blower devices 20 are provided, for example, so as to surround the production device 50. In this case, the installation intervals between the blower devices 20 do not need to be constant, and may be random. By providing multiple blower devices 20 so as to surround the production device 50, it is possible to widely prevent the contaminated air Pa from leaking out of the capture area Rt.

[0022] The installation location of the blower device 20 is not particularly limited, but it is desirable to install it in a location that does not affect the operation and movement of the production device 50. The blower device 20 may be configured integrally with the production device 50.

[0023] The control device 10 is a controller of the exhaust system 100 and is connected to the blower device 20, the state detection device 30, and the exhaust device 40.

[0024] FIG. 2 is a block diagram showing an example of a hardware configuration of the control device 10 according to the first embodiment.

[0025] As shown in FIG. 2, the control device 10 according to this embodiment includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, an input / output interface (I / O) 14, a memory unit 15, a display unit 16, and a connection unit 17.

[0026] The CPU 11, ROM 12, RAM 13, and I / O 14 are connected to each other via a bus. Functional units including a storage unit 15, a display unit 16, and a connection unit 17 are connected to the I / O 14. These functional units can communicate with the CPU 11 via the I / O 14.

[0027] A control unit is configured with the CPU 11, ROM 12, RAM 13, and I / O 14. The control unit may be configured as a sub-control unit that controls part of the operation of the control device 10, or may be configured as part of a main control unit that controls the overall operation of the control device 10. For some or all of the blocks in the control unit, an integrated circuit such as an LSI (Large Scale Integration) or an IC chip set is used. Individual circuits may be used for each of the above blocks, or a circuit in which some or all of the blocks are integrated may be used. The above blocks may be provided integrally, or some of the blocks may be provided separately. Furthermore, parts of each of the above blocks may be provided separately. The integration of the control unit is not limited to LSI, and a dedicated circuit or a general-purpose processor may also be used.

[0028] For example, a hard disk drive (HDD), a solid state drive (SSD), a flash memory, or the like is used as the storage unit 15. A control program 15A according to this embodiment is stored in the storage unit 15. Note that this control program 15A may be stored in the ROM 12.

[0029] The control program 15A may be pre-installed in the control device 10, for example. The control program 15A may be realized by storing it in a non-volatile non-transitory storage medium or distributing it via a network and installing it appropriately in the control device 10. Note that examples of non-volatile non-transitory storage media include CD-ROMs (Compact Disc Read Only Memory), magneto-optical disks, HDDs, DVD-ROMs (Digital Versatile Disc Read Only Memory), flash memories, memory cards, etc.

[0030] The display unit 16 may be, for example, a liquid crystal display (LCD) or an organic electroluminescence (EL) display. The display unit 16 may be integrated with a touch panel. The display unit 16 receives various instructions from the user of the control device 10. The display unit 16 displays various information such as the results of processing executed in response to instructions received from the user and notifications regarding the processing.

[0031] The connection unit 17 is an interface for connecting the blower device 20, the state detector 30, and the exhaust device 40 to each other.

[0032] FIG. 3 is a block diagram showing an example of the functional configuration of the control device 10 according to the first embodiment.

[0033] As shown in FIG. 3, the CPU 11 of the control device 10 according to this embodiment functions as an acquisition unit 11A and a control unit 11B by writing a control program 15A stored in the storage unit 15 or the ROM 12 to the RAM 13 and executing it.

[0034] The acquisition unit 11A acquires distribution data representing the distribution state of the contaminated air Pa from the state detection device 30 when the contaminated air Pa generated from the production device 50 within the capture area Rt is exhausted by the exhaust device 40.

[0035] The control unit 11B is capable of controlling at least one of the volume and direction of the jet air Ar sent from the blower 20 toward the contaminated air Pa according to the acquired distribution data so that the contaminated air Pa is efficiently guided into the capture region Rt. The control unit 11B may control either the volume or direction of the jet air Ar, or may control both the volume and direction of the jet air Ar. Here, the volume and direction of the jet air Ar are controlled to, for example, the minimum volume and direction that can keep the contaminated air Pa within the capture region Rt. When controlling multiple blower devices 20, the volume and direction of each blower device 20 are controlled so that the total volume of the individual blower devices 20 becomes the minimum volume that can keep the contaminated air Pa within the capture region Rt.

[0036] In the exhaust system 100 according to this embodiment, the state detection device 30 constantly monitors the distribution of the contaminated air Pa, and the control device 10 controls at least one of the volume and direction of the jet of air Ar sent out from the blower device 20 in accordance with the distribution data acquired from the state detection device 30. Specifically, for example, if a lateral airflow disturbance occurs in the space between the production device 50 and the exhaust device 40, the contaminated air Pa is blown to the side, changing the distribution data of the contaminated air Pa. Then, in accordance with the changed distribution data, at least one of the volume and direction of the jet of air Ar sent out from the blower device 20 is controlled so that the contaminated air Pa is efficiently guided to the capture region Rt. In other words, it is not necessary to constantly operate the blower device 20 at a volume above a predetermined level; instead, the blower device 20 can be adaptively controlled in accordance with the distribution of the contaminated air Pa. This reduces the power consumption of the system and enables efficient exhaust of the contaminated air Pa.

[0037] For example, as shown in Fig. 1 above, when a disturbance flows from the left to the right of the production device 50, the contaminated air Pa flows from the left to the right. In this case, the air volume of the blower 20 provided on the right side of the production device 50 may be increased, and the air volume of the blower 20 provided on the left side of the production device 50 may be stopped or reduced. When multiple blower devices 20 are provided, different control contents may be applied to each blower device 20 based on the distribution state of the contaminated air Pa.

[0038] Fig. 4(A) is a diagram schematically illustrating an example of a configuration in which a state detection device 30 is integrally provided with a blower device 20. Fig. 4(B) is a plan view illustrating a state in which a plurality of blower devices 20 shown in Fig. 4(A) are arranged at 90-degree intervals around a production device 50.

[0039] As shown in Fig. 4(A), a state detection device 30 is integrally provided at the upper end of the air blower 20. By providing the state detection device 30 integrally with the air blower 20, there is no need to consider the installation location of the state detection device 30. Fig. 4(A) shows four air blowers 20 as an example, and each air blower 20 has the same configuration.

[0040] The blower device 20 includes a blower fan 21 for blowing air, a motor 22 for rotating the blower fan 21, a nozzle 23 for determining the wind direction of the air blown by the blower fan 21, an air volume changer 24 for changing the volume of the air blown by the blower fan 21, and an air direction changer 25 for changing the direction of the nozzle 23.

[0041] By configuring the blower device 20 as described above, at least one of the air volume and air direction of the blower device 20 can be changed.

[0042] As described above, the control device 10 is provided with a connection unit 17, the input (IN) of which is connected to the state detection device 30, and the output (OUT) of which is connected to each of the air volume change unit 24 and the air direction change unit 25 of the blower device 20.

[0043] The control device 10 acquires distribution data of the contaminated air Pa from the state detection device 30, and outputs a control value for controlling the air volume of the jet air Ar of the blower 20 to the air volume change unit 24 in accordance with the acquired distribution data, and outputs a control value for controlling the wind direction of the jet air Ar to the wind direction change unit 25. The air volume change unit 24 changes the air volume of the jet air Ar in accordance with the input control value, and the wind direction change unit 25 changes the orientation of the nozzle 23 in accordance with the input control value to change the wind direction of the jet air Ar.

[0044] As shown in FIG. 4(B), as an example, four blowers 20 are arranged at 90-degree intervals around the production device 50. With such an arrangement, it is possible to guide the contaminated air Pa to the capture area Rt regardless of the direction from which a disturbance occurs. However, as long as at least three blowers 20 are arranged, it is possible to deal with disturbances from all directions. The number of blowers 20 and their locations are not particularly limited. The number and locations of the blowers 20 may be determined taking into account the layout of the production device 50 and ease of access for users.

[0045] The control value of the air volume may be different for each blower 20 depending on the distribution data of the contaminated air Pa. The control value of the air direction may also be different for each blower 20 depending on the distribution data of the contaminated air Pa.

[0046] Next, the blower control process performed by the control device 10 will be specifically described with reference to FIGS.

[0047] Fig. 5 shows an example of a control value screen 60 according to this embodiment. Note that, although the example in Fig. 5 shows a case where both the volume and direction of the jet of air Ar are controlled, it is also possible to control either the volume or the direction.

[0048] Based on the distribution data of the contaminated air Pa, the control unit 11B of the control device 10 calculates control values ​​for the air volume and direction of the jetted air Ar so that the contaminated air Pa is efficiently guided into the capture region Rt, and performs control to display the calculated control values. Specifically, the control value for the air volume of the jetted air Ar is set to, for example, a control value corresponding to the minimum air volume that can keep the contaminated air Pa within the capture region Rt. As an example, as shown in FIG. 5, the control unit 11B causes the display unit 16 to display a control value screen 60 that includes the control values ​​of the air volume and direction of the air blowers 20. In this case, the operator can determine the control values ​​of the air volume and direction of each air blower 20 from the control value screen 60 and adjust the air volume and direction of each air blower 20 based on the determined control values.

[0049] According to this configuration, the worker can understand the control value presented on the control value screen 60 and adjust at least one of the air volume and air direction of the blower device 20 by himself.

[0050] Fig. 6 is a diagram showing an example of a data table 70 according to this embodiment. Note that, although the example of Fig. 6 shows a case where both the volume and direction of the jet of air Ar are controlled, it is also possible to control either the volume or the direction.

[0051] The data table 70 shown in FIG. 6 is a data table that associates predetermined patterns (A, B, C, D, . . . ) that classify the distribution data of the contaminated air Pa with control values ​​for the air volume and direction of the jet air Ar sent by the blower device 20. The data table 70 is stored in the memory unit 15. The "predetermined pattern" here refers to a predetermined distribution state of the contaminated air Pa for each pattern, such as "Pattern A" indicating a uniform distribution state of the contaminated air Pa, "Pattern B" indicating a distribution state of the contaminated air Pa that is biased to the right, or "Pattern C" indicating a distribution state of the contaminated air Pa that is biased to the left. Furthermore, the control values ​​for the air volume and direction are set to values ​​necessary for efficiently guiding the contaminated air Pa into the capture region Rt for each pattern. Specifically, the control value for the air volume is set to a control value corresponding to the minimum air volume that can keep the contaminated air Pa within the capture region Rt.

[0052] The control unit 11B of the control device 10 classifies the distribution data of the contaminated air Pa into predetermined patterns, identifies a control value corresponding to the classified predetermined pattern from the data table 70, and controls the air volume and direction of the jetted air Ar based on the identified control value. In this case, the air volume and direction of the blower device 20 are automatically controlled by the control device 10.

[0053] According to this configuration, at least one of the air volume and air direction of the blower device 20 can be controlled based on the control value specified by the data table 70.

[0054] Fig. 7 is a diagram showing an example of a trained model 80 according to this embodiment. Note that, although the example in Fig. 7 shows a case where both the volume and direction of the jet of air Ar are controlled, it is also possible to control either the volume or the direction.

[0055] The trained model 80 shown in FIG. 7 is generated by machine learning using supervised data that associates distribution data of the contaminated air Pa with control values ​​for the air volume and direction of the jet air Ar. The trained model 80 is not particularly limited, and for example, a neural network or the like is used. The trained model 80 outputs control values ​​corresponding to the input distribution data. The trained model 80 is stored in the memory unit 15. The control values ​​of the air volume and wind direction are output as values ​​required for efficiently guiding the contaminated air Pa into the capture region Rt for the input distribution data. Specifically, the control value of the air volume is, for example, a control value corresponding to the minimum air volume that can keep the contaminated air Pa within the capture region Rt.

[0056] The control unit 11B of the control device 10 inputs the distribution data of the contaminated air Pa into the trained model 80, and controls the air volume and direction of the jetted air Ar based on the control value output from the trained model 80. In this case, the air volume and direction of the blower device 20 are automatically controlled by the control device 10.

[0057] It is also possible to evaluate the removal efficiency of the polluted air Pa for the amount of intake air supplied from the blower 20, and reflect the obtained evaluation results in machine learning. The removal efficiency of the polluted air Pa can be calculated from the pollutant exhaust amount / pollutant generation amount. The pollutant exhaust amount can be obtained by multiplying the pollutant concentration Cex in the exhaust by the exhaust amount Qex. The pollutant generation amount can be obtained by measuring the generation amount of the polluted air Pa.

[0058] According to this configuration, at least one of the air volume and air direction of the blower 20 can be controlled based on the control value output by the trained model 80.

[0059] Furthermore, the acquisition unit 11A of the control device 10 may further acquire environmental information including at least one of the temperature around the production device 50, the humidity around the production device 50, the movement speed of the contaminated air Pa, and the physical properties of the contaminated air Pa. In this case, the control unit 11B is capable of controlling at least one of the air volume and air direction of the jetted air Ar according to the distribution data of the contaminated air Pa and the environmental information. For example, when performing machine learning of the trained model 80 described above, it is conceivable to train the model including environmental information. In this case, the trained model 80 receives the distribution data of the contaminated air Pa and the environmental information as inputs, and outputs a control value for at least one of the air volume and air direction of the jetted air Ar. By adding environmental information in this way, it becomes possible to control the blower device 20 more efficiently.

[0060] According to this configuration, by taking into consideration the environmental information in addition to the distribution data, it is possible to more efficiently control at least one of the air volume and air direction of the blower device 20.

[0061] Furthermore, the control unit 11B of the control device 10 may be capable of controlling the amount of contaminated air Pa suctioned by the exhaust device 40, along with at least one of the volume and direction of the jet air Ar, in accordance with the distribution data of the contaminated air Pa. In other words, by controlling the volume of contaminated air Pa suctioned by the exhaust device 40 in accordance with the distribution data of the contaminated air Pa, the effect of capturing the contaminated air Pa can be further enhanced. Furthermore, by controlling the volume of contaminated air Pa suctioned by the exhaust device 40, it becomes possible to reduce the volume of air blown by the blower 20.

[0062] According to this configuration, by controlling at least one of the air volume and air direction of the blower 20 and also by controlling the suction volume of the exhaust device 40, the contaminated air Pa can be exhausted more efficiently.

[0063] Next, the operation of the control device 10 according to the first embodiment will be described with reference to FIG.

[0064] FIG. 8 is a flowchart showing an example of the flow of processing by the control program 15A according to the first embodiment.

[0065] First, when the control device 10 is instructed to control the blower device 20, the control program 15A is started by the CPU 11, and the following steps are executed.

[0066] In step S101, the CPU 11 acquires distribution data representing the distribution state of the contaminated air Pa from the state detection device 30.

[0067] In step S102, the CPU 11 calculates control values ​​for the volume and direction of the jet of air Ar sent out from the blower 20, based on the distribution data acquired in step S101, so as to achieve the minimum volume of air that can keep the contaminated air Pa within the capture region Rt. Specifically, as described above, the control value for the volume of air is set to, for example, the control value corresponding to the minimum volume of air that can keep the contaminated air Pa within the capture region Rt.

[0068] In step S103, the CPU 11 displays the control value screen 60 including the control value calculated in step S102 on the display unit 16, as shown in Fig. 5 above, for example, and ends the series of processes by the control program 15A. Note that instead of displaying the control value screen 60, control may be performed using the data table 70 or control may be performed using the trained model 80.

[0069] As described above, according to this embodiment, at least one of the air volume and the air direction of the blower is controlled in accordance with the distribution of the contaminated air generated by the production equipment, thereby enabling efficient exhaust of the contaminated air.

[0070] [Second embodiment] In the first embodiment, a configuration in which one exhaust system is used has been described, whereas in the second embodiment, a configuration in which a plurality of exhaust systems are arranged side by side will be described.

[0071] FIG. 9 is a side view schematically showing an example of a configuration in which a plurality of exhaust systems 100A and 100B according to the second embodiment are arranged side by side.

[0072] As shown in FIG. 9, production equipment 50A and production equipment 50B are installed side by side. An exhaust system 100A that exhausts contaminated air Pa generated by the production equipment 50A is installed to the side and above the production equipment 50A. The exhaust system 100A includes a control device 10A, a blower 20A, a state detection device 30A, and an exhaust device 40A. Furthermore, an exhaust system 100B that exhausts contaminated air Pb generated by the production equipment 50B is installed to the side and above the production equipment 50B. The exhaust system 100B includes the blower 20B, a state detection device 30B, and an exhaust device 40B. Because the exhaust system 100A and the exhaust system 100B are installed side by side, if a disturbance occurs in one of the systems, the disturbance may also affect the other system. For example, if there is a lateral disturbance due to airflow in the space between the production device 50A and the exhaust device 40A, a jet of air Ar is blown out from the blower device 20A, and this jet of air Ar may affect the exhaust of the adjacent exhaust system 100B.

[0073] In this embodiment, the control device 10A of the exhaust system 100A is also connected to the blower device 20B and the state detection device 30B of the exhaust system 100B, and when a disturbance occurs in either the exhaust system 100A or the exhaust system 100B, cooperative control can be performed including the other system. In this cooperative control, for example, the exhaust of the exhaust system 100B may be controlled by directing the airflow from the blower device 20A toward the exhaust system 100B.

[0074] For example, when a disturbance occurs in exhaust system 100A, control device 10A of exhaust system 100A takes the lead in cooperatively controlling blower device 20A of exhaust system 100A and blower device 20B of exhaust system 100B. Specifically, control device 10A acquires distribution data of contaminated air Pa from state detection device 30A and acquires distribution data of contaminated air Pb from state detection device 30B. Then, in accordance with the distribution data of contaminated air Pa and the distribution data of contaminated air Pb, control device 10A controls at least one of the volume and direction of the jet of air Ar blown out from blower device 20A and blower device 20B so that the minimum volume of air is achieved that can keep the contaminated air Pa and the contaminated air Pb within their respective capture regions Rt.

[0075] As described above, according to this embodiment, even when multiple production devices and exhaust systems are arranged side by side, the system in which the disturbance occurs takes the lead in executing cooperative control, thereby enabling efficient exhaust of contaminated air.

[0076] In each of the above embodiments, the control processing executed by the CPU after reading the software (program) may be executed by various processors other than the CPU. Examples of the processor in this case include a PLD (Programmable Logic Device) such as an FPGA (Field-Programmable Gate Array) whose circuit configuration can be changed after manufacturing, and a dedicated electric circuit such as an ASIC (Application Specific Integrated Circuit) which is a processor having a circuit configuration designed specifically for executing a specific process.

[0077] Furthermore, the operations of the processor in each of the above embodiments may not only be performed by a single processor, but may also be performed by multiple processors located at physically separate locations working together. Furthermore, the order of the operations of the processor is not limited to the order described in each of the above embodiments, and may be changed as appropriate.

[0078] The above describes an example of a system and a control device according to an embodiment. The embodiment may be in the form of a program for causing a computer to execute the functions of each unit of the control device. The embodiment may be in the form of a non-transitory storage medium that stores the program and is readable by a computer.

[0079] Furthermore, the configuration of the control device described in the above embodiment is merely an example, and may be changed depending on the situation without departing from the spirit of the invention.

[0080] Furthermore, the processing flow of the program described in the above embodiment is also an example, and unnecessary steps may be deleted, new steps may be added, or the processing order may be rearranged within the scope of the main idea.

[0081] In the above embodiment, the processing according to the embodiment is realized by a software configuration using a computer by executing a program, but the present invention is not limited to this. The embodiment may be realized by, for example, a hardware configuration or a combination of a hardware configuration and a software configuration.

[0082] The following additional notes are provided regarding the above-described embodiments.

[0083] (Appendix 1) an acquisition unit that acquires distribution data representing a distribution state of the contaminated air from the state detection device when the contaminated air generated from the pollution source is exhausted by the exhaust device; a control unit that can control at least one of the volume and direction of air in a jet state sent from an air blower so as to guide the contaminated air to the exhaust device, in accordance with the distribution data acquired by the acquisition unit; A control device comprising: (Appendix 2) the control unit calculates a control value for at least one of the air volume and the air direction based on the distribution data acquired by the acquisition unit, and performs control to present the calculated control value. 10. The control device of claim 1. (Appendix 3) a data table that associates predetermined patterns for classifying the distribution data of the contaminated air with control values ​​for at least one of the volume and direction of the air blown by the blower; the control unit classifies the distribution data acquired by the acquisition unit into predetermined patterns, identifies a control value corresponding to the classified predetermined pattern from the data table, and controls at least one of the volume and direction of the air based on the identified control value. 10. The control device of claim 1. (Appendix 4) The system further comprises a trained model that is generated by machine learning using supervised data that associates the distribution data of the contaminated air with control values ​​for at least one of the air volume and the air direction of the air sent by the blower, and that outputs a control value that corresponds to the input distribution data; The control unit inputs the distribution data acquired by the acquisition unit into the trained model, and controls at least one of the air volume and the air direction based on a control value output from the trained model. 10. The control device of claim 1. (Appendix 5) The acquisition unit further acquires environmental information including at least one of a temperature around the pollution source, a humidity around the pollution source, a movement speed of the polluted air, and a physical property of the polluted air; the control unit is capable of controlling at least one of the volume and direction of the air flow in accordance with the distribution data and the environmental information acquired by the acquisition unit. 5. The control device according to any one of Supplementary notes 1 to 4. (Appendix 6) The control unit is capable of controlling at least one of the air volume and the air direction, as well as the amount of contaminated air suctioned by the exhaust device, in accordance with the distribution data acquired by the acquisition unit. 6. The control device according to any one of Supplementary notes 1 to 5. (Appendix 7) When exhausting the contaminated air generated from the pollution source by the exhaust device, distribution data representing the distribution state of the contaminated air is acquired from the state detection device; At least one of the volume and direction of the air in a jet state sent from the blower device so as to guide the contaminated air to the exhaust device can be controlled in accordance with the acquired distribution data. A control method for computer-implemented processing. (Appendix 8) When exhausting the contaminated air generated from the pollution source by the exhaust device, distribution data representing the distribution state of the contaminated air is acquired from the state detection device; At least one of the volume and direction of the air in a jet state sent from the blower device so as to guide the contaminated air to the exhaust device can be controlled in accordance with the acquired distribution data. A control program that causes a computer to execute a process. (Appendix 9) an exhaust device for exhausting contaminated air generated from a pollution source; a blower that blows air in a jet state so as to guide the contaminated air to the exhaust device; In an exhaust system comprising: a condition detection device for detecting the distribution condition of the contaminated air; an acquisition unit that acquires distribution data representing a distribution state of the contaminated air from the state detection device when the contaminated air generated from the pollution source is exhausted by the exhaust device; a control unit that controls at least one of the volume and direction of the air sent from the blower device in accordance with the distribution data acquired by the acquisition unit; Exhaust system with. (Appendix 10) The air blower device is A blower fan to send air, a nozzle that determines the direction of the air blown by the blower fan; an air volume changer that changes the volume of the air sent by the blower fan; a wind direction changing unit that changes the direction of the nozzle; Including, 9. An exhaust system as described in Appendix 9. (Appendix 11) The blower device is a plurality of blowers, The plurality of blowers are provided to surround the pollution source. 11. The exhaust system of claim 9 or 10. (Appendix 12) The state detection device is provided integrally with the air blower. An exhaust system according to any one of Supplementary notes 9 to 11. (Appendix 13) The state detection device is at least one of a visible light camera, a thermal camera, an infrared camera, a concentration sensor, a temperature sensor, and a humidity sensor. An exhaust system according to any one of Supplementary Notes 9 to 12. (Appendix 14) The exhaust device is an exhaust port for drawing in the contaminated air; a jet air outlet provided around the exhaust port and configured to radially discharge air in a jet state; Including, An exhaust system according to any one of Supplementary notes 9 to 13. [Explanation of symbols]

[0084] 10 Control device 11 CPU 11A Acquisition Department 11B Control section 12 ROM 13 RAM 14 I / O 15 Storage section 15A Control Program 16 Display section 17 Connection 20. Blower 30 Status detection device 40 Exhaust system 50 Production Equipment 100 exhaust system

Claims

1. an acquisition unit that acquires distribution data representing a distribution state of the contaminated air from the state detection device when the contaminated air generated from the pollution source is exhausted by the exhaust device; a control unit that can control at least one of the volume and direction of air in a jet state sent from an air blower so as to guide the contaminated air to the exhaust device, in accordance with the distribution data acquired by the acquisition unit; A control device comprising:

2. the control unit calculates a control value for at least one of the air volume and the air direction based on the distribution data acquired by the acquisition unit, and performs control to present the calculated control value. The control device according to claim 1 .

3. a data table that associates predetermined patterns for classifying the distribution data of the contaminated air with control values ​​for at least one of the volume and direction of the air blown by the blower; the control unit classifies the distribution data acquired by the acquisition unit into predetermined patterns, identifies a control value corresponding to the classified predetermined pattern from the data table, and controls at least one of the volume and direction of the air based on the identified control value. The control device according to claim 1 .

4. The system further comprises a trained model that is generated by machine learning using supervised data that associates the distribution data of the contaminated air with control values ​​for at least one of the air volume and the air direction of the air sent by the blower, and that outputs a control value that corresponds to the input distribution data; The control unit inputs the distribution data acquired by the acquisition unit into the trained model, and controls at least one of the air volume and the air direction based on a control value output from the trained model. The control device according to claim 1 .

5. The acquisition unit further acquires environmental information including at least one of a temperature around the pollution source, a humidity around the pollution source, a movement speed of the polluted air, and a physical property of the polluted air; the control unit is capable of controlling at least one of the volume and direction of the air flow in accordance with the distribution data and the environmental information acquired by the acquisition unit. The control device according to claim 1 .

6. The control unit is capable of controlling at least one of the air volume and the air direction, as well as the amount of contaminated air suctioned by the exhaust device, in accordance with the distribution data acquired by the acquisition unit. The control device according to claim 1 .

7. When exhausting the contaminated air generated from the pollution source by the exhaust device, distribution data representing the distribution state of the contaminated air is acquired from the state detection device; At least one of the volume and direction of the air in a jet state sent from the blower device so as to guide the contaminated air to the exhaust device can be controlled in accordance with the acquired distribution data. A control method for computer-implemented processing.

8. When exhausting the contaminated air generated from the pollution source by the exhaust device, distribution data representing the distribution state of the contaminated air is acquired from the state detection device; At least one of the volume and direction of the air in a jet state sent from the blower device so as to guide the contaminated air to the exhaust device can be controlled in accordance with the acquired distribution data. A control program that causes a computer to execute a process.

9. an exhaust device for exhausting contaminated air generated from a pollution source; a blower that blows air in a jet state so as to guide the contaminated air to the exhaust device; In an exhaust system comprising: a condition detection device for detecting the distribution condition of the contaminated air; an acquisition unit that acquires distribution data representing a distribution state of the contaminated air from the state detection device when the contaminated air generated from the pollution source is exhausted by the exhaust device; a control unit that controls at least one of the volume and direction of the air sent from the blower device in accordance with the distribution data acquired by the acquisition unit; Exhaust system with.

10. The air blower device is A blower fan to send air, a nozzle that determines the direction of the air blown by the blower fan; an air volume changer that changes the volume of the air sent by the blower fan; a wind direction changing unit that changes the direction of the nozzle; Including, 10. The exhaust system of claim 9.

11. The blower device is a plurality of blowers, The plurality of blowers are provided to surround the pollution source.

10. The exhaust system of claim 9.

12. The state detection device is provided integrally with the air blower.

10. The exhaust system of claim 9.

13. the state detection device is at least one of a visible light camera, a thermal camera, an infrared camera, a concentration sensor, a temperature sensor, and a humidity sensor; 10. The exhaust system of claim 9.

14. The exhaust device is an exhaust port for drawing in the contaminated air; a jet air outlet provided around the exhaust port and configured to radially discharge air in a jet state; Including, 10. The exhaust system of claim 9.

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