Control device and control system

Abstract

The control device includes an acquisition section (54) that acquires first information indicating information on an operating time of a first device (U1) and an environmental state that has an influence on the life of a first apparatus (E1) provided to the first device (U1), and information on an operating time of a second device (U2) and an environmental state that has an influence on the life of a second apparatus (E2) provided to the second device (U2), and a control section (C2) that causes the first device (U1) and the second device (U2) to operate in conjunction with each other in accordance with the first information acquired by the acquisition section (54).

Description

Technical Field

[0001] This disclosure relates to a control device and a control system. Background Technology

[0002] Patent document 1 discloses a control device that determines whether each of a plurality of parts of a robot is predicted to malfunction, and predicts the timing of malfunctions for the predicted parts. The control device adjusts the maintenance schedule based on the predicted malfunction timing and adjusts the workload of each robot to operate until the maintenance schedule.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Publication No. 2020-190919 Summary of the Invention

[0006] -The technical problem the invention aims to solve-

[0007] As the operating time and number of operations of a device increase, the performance degradation (aging) of the components installed in that device will accelerate accordingly. The lifespan of these components will shorten as performance degradation intensifies. The lifespan of components in each device varies depending on the operating conditions and operating time of each device. However, in the control device described above, although the failure period of the predicted failure component among multiple components of the robot is predicted, the performance degradation (lifespan) of each component is not taken into account.

[0008] The purpose of this disclosure is to provide a control device for controlling the device based on the lifespan of the equipment installed in the device.

[0009] - Technical solutions used to solve technical problems -

[0010] A first aspect of this disclosure is a control device comprising an acquisition unit 54 and a control unit C2.

[0011] The acquisition unit 54 acquires first information, which includes: information on the operating time of the first device U1 and the environmental conditions affecting the lifespan of the first device E1 installed on the first device U1; and information on the operating time of the second device U2 and the environmental conditions affecting the lifespan of the second device E2 installed on the second device U2.

[0012] The control unit C2, based on the first information obtained by the acquisition unit 54, causes the first device U1 and the second device U2 to operate in conjunction.

[0013] In the first aspect, by considering the operating times of multiple devices U1 and U2 and the environmental conditions that affect the lifespan of the equipment E1 and E2 installed in each device U1 and U2, the lifespan (performance degradation) of each device E can be determined. Environmental conditions refer to, for example, the degree of air pollution caused by dust, etc., when devices U1 and U2 are ventilation devices and equipment E1 and E2 are filters. By determining the lifespan of each device E, the first device U1 and the second device U2 can be operated in conjunction with each other based on the lifespan of each device E. For example, prioritizing the operation of devices U with longer lifespans and suppressing the operating load of devices U with shorter lifespans. By linking the first device U1 and the second device U2 according to the lifespan of each device E, the lifespan of each device E can be controlled.

[0014] A second aspect of this disclosure is a control device comprising an acquisition unit 54 and a control unit C2.

[0015] The acquisition unit 54 acquires first information related to the lifespan of the first device E1 installed in the first device U1 and the second device E2 installed in the second device U2.

[0016] The control unit C2 sets the operating state of the first device U1 and the second device U2 according to the first information obtained by the acquisition unit 54, and causes the first device U1 and the second device U2 to operate in conjunction according to the operating state.

[0017] In the second aspect, the lifespan (performance degradation) of each device E can be determined based on first information related to the lifespan of devices E1 and E2. The first information refers, for example, the external static pressure when devices U1 and U2 are ventilation devices and devices E1 and E2 are filters. In this way, by determining the lifespan of each device E, the same effect as in the first aspect can be achieved.

[0018] A third aspect of this disclosure is a control device, which includes a detection unit 51, a calculation unit 52, an acquisition unit 54, and a control unit C2.

[0019] The detection unit 51 detects the current operating status of the first device U1 and the second device U2.

[0020] The calculation unit 52 predicts the remaining lifespan of the first device E1 installed in the first device U1 and the second device E2 installed in the second device U2 based on the operating status detected by the detection unit 51.

[0021] The acquisition unit 54 acquires first information, which shows the remaining lifespan of the first device E1 and the second device E2 as predicted by the calculation unit 52.

[0022] The control unit C2, based on the first information obtained by the acquisition unit 54, causes the first device U1 and the second device U2 to operate in conjunction.

[0023] In the third aspect, the remaining lifespan of each device E1 and E2 is predicted based on the current operating status of each device U1 and U2. Operating status refers, for example, the power consumption and rotational speed of the fan included in the ventilation device when devices U1 and U2 are ventilation devices and devices E1 and E2 are filters. Thus, the same effect as in the first aspect can be obtained.

[0024] A fourth aspect of this disclosure is a control device, which includes a detection unit 51, an input unit 53, and a control unit C2.

[0025] The detection unit 51 detects first information, which indicates the environmental state during the operation of the first device U1 and the second device U2, or the state of the first device E1 installed in the first device U1 and the second device E2 installed in the second device U2.

[0026] The operating modes of the first device U1 and the second device U2 are input to the input unit 53.

[0027] The control unit C2 controls the operation based on the first information and the operating mode input to the input unit 53, so that the first device U1 and the second device U2 operate in conjunction.

[0028] In the fourth aspect, the lifespan (performance degradation) of each device E can be determined based on the environmental conditions during the operation of each device U1 and U2 or the status of each device E1 and E2. In this way, control can be performed based on the first information and the operating mode to enable each device U1 and U2 to operate in conjunction.

[0029] The fifth aspect of this disclosure is, based on any one of the first to fourth aspects,

[0030] The control unit C2 enables the first device U1 and the second device U2 to operate in conjunction with each other so that the end of the lifespan of the first device E1 and the second device E2 coincides with the end of their lifespans.

[0031] In the fifth aspect, the maintenance periods for the first device E1 and the second device E2 can be made the same. As a result, since each device E can be maintained at once, costs can be reduced compared to maintaining them individually.

[0032] The sixth aspect of this disclosure is, based on any one of the first to fifth aspects,

[0033] The control unit C2 causes the first device U1 and the second device U2 to operate in conjunction with each other, so that the lifespans of the first device E1 and the second device E2 end in sequence.

[0034] In the sixth aspect, the maintenance periods of the first device U1 and the second device U2 can be staggered to perform maintenance on each device E, thereby reducing the cost of maintenance at one time.

[0035] The seventh aspect of this disclosure is based on any one of the first to sixth aspects.

[0036] The control device further includes an input unit 53, to which information related to the prescribed use of the first device E1 and the second device E2 is input according to the user's operation.

[0037] The control unit C2, based on the first information obtained by the acquisition unit 54 and the application-related information input to the input unit 53, causes the first device U1 and the second device U2 to operate in conjunction.

[0038] In the seventh aspect, by taking into account information related to the prescribed use of each device E, the accuracy of life control of each device E can be improved.

[0039] The eighth aspect of this disclosure is, based on the seventh aspect,

[0040] The information related to the application of the aforementioned regulations is a maintenance schedule for maintaining the first device E1 and the second device E2.

[0041] The control unit C2 causes the first device U1 and the second device U2 to operate in conjunction with each other so that the lifespan of the first device E1 and the second device E2 ends according to the maintenance schedule.

[0042] In the eighth aspect, the lifespan of each piece of equipment E can be controlled according to a maintenance schedule. This prevents equipment E from failing at unexpected times. Users can then perform regular maintenance on each piece of equipment E.

[0043] The ninth aspect is, based on the eighth aspect,

[0044] The maintenance schedule includes the replacement periods for the first device E1 and the second device E2.

[0045] In the ninth aspect, it is possible to replace equipment E after fully utilizing the performance of each equipment E.

[0046] The tenth aspect is, based on the seventh aspect,

[0047] The information relevant to the application of the aforementioned regulations includes the power consumption of the first device U1 and the second device U2, as well as the first cost required for the maintenance of the first device E1 and the second device E2.

[0048] The control unit C2 enables the first device U1 and the second device U2 to operate in conjunction with each other in such a way that the total cost, including the first cost and the second cost, is below the target value, wherein the second cost is the cost required up to the maintenance period of the first device E1 and the second device E2.

[0049] In the tenth aspect, each device U1 and U2 can be operated in a manner that brings the total cost, including the cost of the power consumed by the first device U1 and the second device U2 up to the maintenance period and the cost required for the maintenance period, to a target value. As a result, cost savings can be achieved.

[0050] The eleventh aspect is, based on the tenth aspect,

[0051] The first cost includes the expenses required to set up, replace, inspect, or repair the first device E1 and the second device E2, including the cost of spare parts required for maintenance or the labor cost required for repair and maintenance.

[0052] In the eleventh aspect, the second cost can be estimated based on the cost required to maintain (including setting up, replacing, inspecting or repairing) each piece of equipment E.

[0053] The twelfth aspect is based on any one of the first to eleventh aspects.

[0054] The first device U1 and the second device U2 have an intake port 22 for drawing in fluid, an outlet port 25 for discharging fluid, and a fluid passage 26 connecting the intake port 22 and the outlet port 25.

[0055] The first device E1 and the second device E2 are filters E arranged in the fluid passage 26.

[0056] In the twelfth aspect, the controller can be applied to a device U having a filter E. The first device U1 and the second device U2 can be operated in conjunction with each other based on the lifespan of the filter E.

[0057] The thirteenth aspect is, based on the twelfth aspect,

[0058] The first piece of information is the amount of deposits attached to the filter E or the amount of change of those deposits over time.

[0059] In the thirteenth aspect, the amount of adhering material (dust particles, etc.) attached to the filter E or the amount of change of adhering material over time can be used as the first information about the lifespan of the filter E.

[0060] The fourteenth aspect is, based on the twelfth or thirteenth aspect,

[0061] The first device U1 and the second device U2 also include a conveyor 31, which conveys fluid in the fluid passage 26 under the drive of a motor.

[0062] The first information is the motor's rotational speed, power consumption, operating time, or the static pressure of the fluid conveyed by the conveyor 31.

[0063] In the fourteenth aspect, the motor speed, power consumption, operating time, or static pressure of the fluid conveyed by the conveyor 31 can be used as the first information for the lifespan of the filter E.

[0064] The fifteenth aspect is a control system comprising the control device of any one of the first to fourteenth aspects, the first device U1, and the second device U2.

[0065] In the fifteenth aspect, a control system comprising a first device U1, a second device U2, and a control device C can be provided. Attached Figure Description

[0066] Figure 1 This is a schematic overall structural diagram showing the control system involved in the first embodiment;

[0067] Figure 2 This is a schematic structural diagram showing the ventilation device;

[0068] Figure 3 It is a block diagram of the control device of the control system;

[0069] Figure 4 This is the control flowchart of the ventilation device;

[0070] Figure 5 The ventilation device involved in the modification of the first embodiment is equivalent to Figure 2 The image;

[0071] Figure 6 This is a schematic structural diagram showing the ventilation device according to the second embodiment. Detailed Implementation

[0072] The embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the following embodiments are merely preferred examples and are not intended to limit the scope of the present invention, its application, or its uses. The various embodiments, modifications, and other examples described below can be combined or partially substituted within the scope of implementing the present invention.

[0073] (First Implementation)

[0074] -Ventilation Control System-

[0075] The ventilation control system 10 according to the first embodiment is the control system 10 of this disclosure. The ventilation control system 10 includes a plurality of ventilation devices U and a control device C.

[0076] Multiple ventilation units U target the same indoor space for ventilation. For example, ventilation units U may be installed on the back of the ceiling. Figure 1 As illustrated, the ventilation control system 10 in this example has three ventilation devices U1 to U3.

[0077] The three ventilation devices U1 to U3 are the first ventilation device U1, the second ventilation device U2, and the third ventilation device U3. The first ventilation device U1 is the first device U1 of this disclosure. The second ventilation device U2 is the second device U2 of this disclosure. The number of ventilation devices U is not limited to this; as long as there are two or more, the number can be any number. The control device C controls the three ventilation devices U. The three ventilation devices U1 to U3 are composed of the same equipment and components. Therefore, in the following description, the three ventilation devices U1 to U3 are not distinguished and are sometimes simply referred to as ventilation devices U. In the following description, each ventilation device U refers to the first ventilation device U1, the second ventilation device U2, and the third ventilation device U3.

[0078] (1) Ventilation device

[0079] Reference Figure 2 The general structure of the ventilation device U is described below. The ventilation device U includes a housing 21, an air supply fan 31, an exhaust fan 32, a total heat exchanger 33, and a filter E.

[0080] (1-1) Shell

[0081] The casing 21 is formed as a hollow box. An outdoor air inlet 22, an exhaust outlet 23, an indoor air inlet 24, and an air supply outlet 25 are formed on the casing 21. The outdoor air inlet 22 and the exhaust outlet 23 are each connected to the outdoor space via pipes. The outdoor air inlet 22 is the intake inlet 22 of this disclosure. The outdoor air inlet 22 draws in air from the outdoor space. The air is the fluid of this disclosure. The indoor air inlet 24 and the air supply outlet 25 are each connected to the indoor space via pipes. The air supply outlet 25 is the discharge outlet 25 of this disclosure. The air supply outlet 25 discharges air into the pipe connecting the indoor space to the outdoor space.

[0082] An air supply passage 26 and an exhaust passage 27 are formed inside the housing 21. The air supply passage 26 is configured to connect the outdoor air inlet 22 and the air supply port 25. The air supply passage 26 is the fluid passage 26 of this disclosure. The exhaust passage 27 extends from the indoor air inlet 24 to the exhaust port 23. An air supply fan 31 is arranged in the air supply passage 26, and an exhaust fan 32 is arranged in the exhaust passage 27.

[0083] (1-2) Air supply fan and exhaust fan

[0084] The air supply fan 31 and the exhaust fan 32 are, for example, Silco fans. The air supply fan 31 and the exhaust fan 32 are configured with variable airflow. Specifically, by controlling the rotational speed of the motors installed in the air supply fan 31 and the exhaust fan 32, the airflow of each fan 31, 32 is switched to multiple levels. The air supply fan 31 is the conveyor 31 of this disclosure. Driven by a motor, the air supply fan 31 delivers air into the air supply passage 26.

[0085] (1-3) Total Heat Exchanger

[0086] A total heat exchanger 33 is arranged across an air supply passage 26 and an exhaust passage 27. The total heat exchanger 33 has a first passage 34 connected to the air supply passage 26 and a second passage 35 connected to the exhaust passage 27. The total heat exchanger 33 exchanges sensible and latent heat between a first air flowing in the first passage 34 and a second air flowing in the second passage 35.

[0087] (1-4) Filters

[0088] Filter E is arranged in the air supply passage 26. Specifically, filter E is arranged upstream of the total heat exchanger 33 in the air supply passage 26. Filter E removes particulate matter such as dust, mites, and pollen from the air flowing into the air supply passage 26 from the outdoor air inlet 22. Filter E is provided in each ventilation device U. Specifically, the first ventilation device U1 includes a first filter E1. The second ventilation device U2 includes a second filter E2. The third ventilation device U3 includes a third filter E3. The first filter E1 is the first device E1 of this disclosure. The second filter E2 is the second device E2 of this disclosure. In the following description, the three filters E1 to E3 are not distinguished and are sometimes simply referred to as filter E. In the following description, each filter E refers to the first filter E1, the second filter E2, and the third filter E3.

[0089] (2) Control device

[0090] like Figure 3 As shown, the control device C includes, for example, a control board, a processor (e.g., a microcomputer) mounted on the control board, and a storage device (e.g., a semiconductor memory) storing software for operating the processor. The control device C has a first control unit C1 and a second control unit C2. The first control unit C1 and the second control unit C2 are connected via a wired or wireless communication line.

[0091] (2-1) First Control Unit

[0092] A first control unit C1 is provided in each ventilation device U. The first control unit C1 includes a fan control unit 59. The fan control unit 59 controls the operation of the air supply fan 31 and the exhaust fan 32 according to the control signal output from the second control unit C2.

[0093] (2-2) Second Control Unit

[0094] The second control unit C2 is, for example, a remote control installed in the indoor space. The second control unit C2 is the control unit C2 of this disclosure. The second control unit C2 is shared by all ventilation devices U1 to U3. The second control unit C2 sends operation commands to each ventilation device U. Specifically, for example, the second control unit C2 sets the operating state of each ventilation device U based on information related to the lifespan of the first filter E1 and the second filter E2. For example, the second control unit C2 allocates the airflow to each ventilation device U to switch each supply fan 31 and each exhaust fan 32 on / off to meet the required airflow, as will be described later. Specifically, when the required airflow is 600 m³ / h... 3 With the airflow rate set at 300 m³ / h and the first ventilation unit U1 and the second ventilation unit U2 of the three ventilation units U1 to U3 operating, the airflow rate of the first ventilation unit U1 is set to 300 m³ / h. 3 / h, Set the airflow of the second ventilation device U2 to 300m³ / h. 3 The system operates at a speed of / h, or the airflow of the first ventilation device U1 is set to 500m³ / h. 3 / h, set the airflow of the second ventilation device U2 to 100m³ / h. 3 It operates on / h.

[0095] In this way, the second control unit C2 sets the operating state of each ventilation device U to achieve airflow balance. Based on the set operating state, the second control unit C2 causes each ventilation device U to operate in tandem. Information related to the lifespan of each filter E is acquired by the acquisition unit 54, described later.

[0096] The second control unit C2 includes a detection unit 51, a calculation unit 52, an input unit 53, an acquisition unit 54, an operation planning unit 55, and a storage unit 56.

[0097] (2-2-1) Testing Department

[0098] The detection unit 51 detects the operating status of each ventilation device U. Specifically, the detection unit 51 detects the power consumption and motor speed of the air supply fan 31 and exhaust fan 32 of each ventilation device U.

[0099] (2-2-2) Arithmetic Unit

[0100] The calculation unit 52 calculates the external static pressure based on the power consumption of the air supply fan 31 and the motor speed. The external static pressure is the static pressure of the air delivered by the air supply fan 31 of this disclosure. The calculation unit 52 calculates the cost of power consumption corresponding to each air volume of the air supply fan 31 and the exhaust fan 32.

[0101] (2-2-3) Input Section

[0102] Information related to the prescribed use of the ventilation unit U is input to the input unit 53. This information includes, for example, the maintenance schedule of the ventilation unit U, related costs, and the power consumption of the ventilation units U1 to U3. In the following description, "the filter E of each ventilation unit U" includes the first filter E1 and the second filter E2. The prescribed use information is input through user operation.

[0103] The maintenance schedule is a timetable for maintaining the filters E of each ventilation unit U. In this example, the maintenance is the replacement of filter E. The maintenance schedule is the replacement period for the filters E of each ventilation unit U. The replacement period for filter E can be set according to a predetermined service life of filter E, or it can be set arbitrarily.

[0104] The cost associated with the ventilation unit U is the primary cost related to the filters E of each ventilation unit U. Specifically, the primary cost is the expense required to replace the filters E of each ventilation unit U. The expense required to replace the filters E includes the cost of the filters E, the cost of the spare parts attached to the filters E, and the labor costs required for the replacement, etc.

[0105] The power consumption of ventilation devices U1 to U3 is the same as that of the first device U1 and the second device U2 disclosed herein. In this example, the power consumption of ventilation devices U1 to U3 is the power consumption of the supply fan 31 and the exhaust fan 32. Specifically, the power consumption of ventilation devices U1 to U3 in this example corresponds to the rotational speed of the motors of the supply fan 31 and the exhaust fan 32. In other words, the power consumption of ventilation devices U1 to U3 corresponds to the airflow of the supply fan 31 and the exhaust fan 32.

[0106] (2-2-4) Acquisition Department

[0107] The acquisition unit 54 acquires first information related to the lifespan of each filter E. Here, lifespan refers to the period up to the time when a filter E is predicted to become unusable. Unusable state refers to a state in which the filter E cannot function. The period during which a filter E is predicted to become unusable refers to the end of the filter E's lifespan. The end of the lifespan can be a specific date (e.g., month × day) or a period (e.g., between one and two months later).

[0108] The first piece of information in this embodiment is the magnitude of the external static pressure. For example, if the filter E becomes clogged due to dust or other contaminants in the air flowing through the air supply passage 26, the external static pressure increases, and the airflow decreases. By using the magnitude of the external static pressure as the first piece of information, the lifespan of the filter E can be predicted. The external static pressure is affected by the length and shape of the pipe connected to the air supply port 25. Therefore, even if the length and shape of the pipes connected to the air supply ports 25 of the first ventilation device U1 to the third ventilation device U3 differ, a predetermined reference value corresponding to each ventilation device U can be set, and the change in the difference between the measured external static pressure and the reference value can be used as the first piece of information related to the lifespan of the filter E. In this case, the predetermined reference value can also be the external static pressure value immediately after the filter E has been replaced.

[0109] (2-2-5) Storage Section

[0110] The storage unit 56 stores four operating modes (first operating mode, second operating mode, third operating mode, and fourth operating mode). Each operating mode will be described later.

[0111] (2-2-6) Operations Planning Department

[0112] The operation planning unit 55 generates control modes for the first ventilation device U1 to the third ventilation device U3 based on the selected operation mode from four operation modes. The operation mode is selected by the user. The following is a description of each operation mode.

[0113] The first operating mode is as follows: based on the first information of each filter E, the first ventilation device U1 to the third ventilation device U3 are operated in a coordinated manner so that the end of the lifespan of the three filters E is the same. For example, in the first operating mode, each ventilation device U is controlled in such a way that the external static pressure (first information) of the first ventilation device U1 to the third ventilation device U3 is the same. Specifically, the air volume is distributed sequentially from the ventilation device U with the lower external static pressure, and the required air supply (necessary air volume) for the indoor space is met. In this case, by prioritizing the operation of the ventilation device U including the filter E with a longer lifespan (less severe performance degradation), the performance degradation of the filter E is accelerated, and ultimately, the lifespans of the first filters E1 to the third filters E3 of the first ventilation device U1 to the third ventilation device U3 are the same.

[0114] The second operating mode is as follows: based on the first information of each filter E, the first ventilation unit U1 to the third ventilation unit U3 are operated in tandem, with the lifespans of the first filter E1 to the third filter E3 ending sequentially. For example, in the second operating mode, the airflow is distributed sequentially from the ventilation unit U with the highest external static pressure (first information) among the three ventilation units U1 to U3, and the necessary airflow is met. In this case, by prioritizing the operation of the ventilation unit U including the filter E with the shortest lifespan (most severe performance degradation), this ventilation unit U ends its lifespan earlier than the other ventilation units U. Next, by prioritizing the operation of the remaining two ventilation units U with the higher external static pressure, it ends its lifespan earlier than the other ventilation unit U.

[0115] The third operating mode is a mode in which the first ventilation device U1 to the third ventilation device U3 are operated in conjunction with each filter E based on the first information and the maintenance schedule of each filter E. For example, in the third operating mode, the air supply fan 31 and the exhaust fan 32 of the first ventilation device U1 to the third ventilation device U3 are operated in conjunction with each other when the lifespan of the first filter E1 ends at the replacement period of the first filter E1.

[0116] Specifically, in the third operating mode, if there is a filter E with a lifespan longer than the maintenance period (performance degradation not significantly), the necessary airflow is prioritized by increasing the capacity (speed of the air supply fan 31) of the ventilation device U equipped with that filter E. On the other hand, if there is a filter E with a lifespan shorter than the maintenance period (performance degradation more significantly), the allocated airflow is suppressed by decreasing the capacity (speed of the air supply fan 31) of the ventilation device U equipped with that filter E.

[0117] In this way, the ventilation unit U is operated so that the maintenance period of filter E coincides with the end of its lifespan. The first ventilation unit U1 to the third ventilation unit U3 only need to be controlled to meet the necessary airflow, and the end of the lifespan of filter E can also be later than its maintenance period. The third operating mode can be executed either according to the full maintenance schedule of the first filter E1 to the third filter E3, or according to a portion of the maintenance schedule of the first filter E1 to the third filter E3.

[0118] The fourth operating mode is as follows: based on the first information of the first filter E1 to the third filter E3, the power consumption of the first ventilation device U1 to the third ventilation device U3, and the first cost of the first filter E1 to the third filter E3, the first ventilation device U1 to the third ventilation device U3 are linked to operate. Here, the power consumption of the first ventilation device U1 to the third ventilation device U3 is the power consumption of each air volume of the air supply fan 31 and the exhaust fan 32.

[0119] Specifically, in the fourth operating mode, the air supply fan 31 and exhaust fan 32 of each ventilation device U are operated in conjunction with each other such that the total cost, including the first cost and the second cost required up to the maintenance period of the first filter E1 to the third filter E3, is below the target value. The target value can be a predetermined value, a value appropriately set by the user, or a value set automatically. The second cost includes the cost of power consumption based on the air volume of each air supply fan 31 and exhaust fan 32 of the first ventilation device U1 to the third ventilation device U3.

[0120] In this example, the target value for the total cost is the value that minimizes the projected total cost. Specifically, the operation planning unit 55 generates multiple control modes and estimates the total cost for each control mode, including the cost required for the next maintenance (first cost) and the cost required up to the next maintenance period (second cost). Based on the estimation results, the operation planning unit 55 selects the control mode that has the lowest projected total cost. The control mode can be a control that selects one or two ventilation devices for centralized operation, a control that enables two or three ventilation devices to operate in all directions, or a control that combines them. This control mode is not limited to the fourth operation mode and can also be applied to the first to third operation modes.

[0121] -Operation Control-

[0122] Reference Figure 4 The operation control of each ventilation device U by the control device C is explained.

[0123] In step ST1, the control device C sets the required air volume (necessary air volume) to supply air to the indoor space. For example, the necessary air volume can be determined based on the number of people in the indoor space or the carbon dioxide concentration in the indoor space.

[0124] In step ST2, the control device C acquires the external static pressure value (first information) of each ventilation device U.

[0125] In step ST3, the control device C determines whether the first operating mode has been selected. If the first operating mode has been selected, step ST8 is executed. If the first operating mode has not been selected, step ST4 is executed.

[0126] In step ST4, control device C determines whether the second operating mode has been selected. If the second operating mode has been selected, step ST8 is executed. If the second operating mode has not been selected, step ST5 is executed.

[0127] In step ST5, control device C determines whether the third operating mode has been selected. If the third operating mode has been selected, step ST8 is executed. If the third operating mode has not been selected, step ST6 is executed.

[0128] In step ST6, control device C determines whether the fourth operating mode has been selected. If the fourth operating mode has been selected, step ST8 is executed. If the fourth operating mode has not been selected, step ST7 is executed.

[0129] In step ST7, the control device C sets the first operating mode.

[0130] In step ST8, the control device C generates the control modes of the first ventilation device U1 to the third ventilation device U3 according to the operating mode selected in steps ST3 to ST7.

[0131] In step ST9, the control device C controls the air supply fan 31 and exhaust fan 32 of the first ventilation device U1 to the third ventilation device U3 according to the control mode generated in step ST8.

[0132] -Effects of the first implementation method-

[0133] The control device C of the first embodiment includes an acquisition unit 54 and a second control unit C2 (control unit). The acquisition unit 54 acquires first information, which shows: information on the operating time of the first ventilation device U1 and the environmental state that affects the lifespan of the first filter E1 installed in the first ventilation device U1, and information on the operating time of the second ventilation device U2 and the environmental state that affects the lifespan of the second filter E2 installed in the second ventilation device U2. The second control unit C2 (control unit) causes the first ventilation device U1 and the second ventilation device U2 to operate in conjunction with each other based on the first information acquired by the acquisition unit 54.

[0134] The control device C of the first embodiment can determine the lifespan of each filter E based on first information. By coordinating the operation of the three ventilation devices U1 to U3 according to the lifespan of each filter E, the lifespan of each filter E can be controlled. Therefore, for example, by operating the three ventilation devices U1 to U3 in a way that avoids concentrating the operating load on a specific ventilation device U, the reduction in indoor air circulation caused by the end of the lifespan of any one filter E can be suppressed. In particular, compared to operating the three ventilation devices U1 to U3 in the same manner as predicting the failure period of a filter E among the three filters E, the control device C of this embodiment can control the three ventilation devices U1 to U3 by taking into account the deviation in the lifespan of the three filters E1 to E3, thus enabling control over the maintenance period of each filter E.

[0135] In the control device C of the first embodiment, the second control unit C2 operates the first ventilation device U1 to the third ventilation device U3 in a coordinated manner, ensuring that the end of the lifespan of the first filter E1 to the third filter E3 is the same. This allows the replacement periods for the three filters E1 to E3 to be the same. As a result, since all three filters E1 to E3 can be replaced at once, costs can be reduced compared to replacing them at different times.

[0136] In the control device C of the first embodiment, the second control unit C2 causes the first ventilation device U1 to the third ventilation device U3 to operate in tandem, with the lifespans of the first filter E1 to the third filter E3 ending sequentially. This allows for staggered replacement of each filter E during its maintenance period, thus reducing maintenance costs.

[0137] The control device C in the first embodiment further includes an input unit 53, into which information related to the prescribed use of the first filter E1 to the third filter E3 is input according to the user's operation. The second control unit C2, based on the first information acquired by the acquisition unit 54 and the use-related information input to the input unit 53, causes the first ventilation device U1 to the third ventilation device U3 to operate in conjunction. Thus, by considering not only the first information of each filter E, but also the use-related information of each filter E, the lifespan of each filter E can be controlled with high precision.

[0138] In the control device C of the first embodiment, the information related to the prescribed operation is a maintenance schedule for maintaining the first filter E1 to the third filter E3. The second control unit C2 operates the first ventilation device U1 to the third ventilation device U3 in conjunction with the maintenance schedule, based on the lifespan of the first filter E1 to the third filter E3. This allows the lifespan of each filter E to be controlled according to the maintenance schedule. This also prevents the filters E from malfunctioning at unexpected times. The user can maintain each device E regularly.

[0139] In the control device C of the first embodiment, the maintenance schedule includes the replacement period for the first filter E1 to the third filter E3. This allows each filter E to be replaced after its performance has been fully utilized. Since the filters E can be replaced when they are used up, energy savings are achieved.

[0140] In the control device C of the first embodiment, the information related to the prescribed operation includes the power consumption of the first ventilation device U1 to the third ventilation device U3 and the first cost required for the maintenance of the first filter E1 to the third filter E3. The second control unit C2 operates the first ventilation device U1 to the third ventilation device U3 in a manner that the total cost, including the first cost and the second cost required until the maintenance period of the first filter E1 to the third filter E3, is below a target value. This suppresses the total cost incurred until the next maintenance period. As a result, cost savings are achieved.

[0141] In the control device C of the first embodiment, the first cost includes the expenses required for setting up, replacing, inspecting, or repairing the first filters E1 to the third filters E3, including the cost of spare parts or labor required for maintenance. By taking this first cost into account when controlling the operation of each ventilation device U, more precise cost savings can be achieved.

[0142] In the control device C of the first embodiment, the first ventilation device U1 to the third ventilation device U3 have an intake port 22 for drawing in fluid, an outlet port 25 for discharging fluid, and an air supply passage 26 (fluid passage) connecting the intake port 22 and the outlet port 25. Each filter E1 to E3 is arranged in the air supply passage 26. By applying the control device C of this disclosure to the ventilation devices U1 to U3, the first device U1 to the third device U3 can be operated in conjunction with each other according to the lifespan of the filter E.

[0143] In the first embodiment, the first ventilation device U1 to the third ventilation device U3 further include an air supply fan 31 (conveyor) that delivers air into the air supply passage 26 under the drive of a motor. In the first embodiment, the first piece of information is the external static pressure of the air delivered by the air supply fan 31. When the external static pressure is high, the airflow at the air supply port decreases. This indicates that the performance degradation of the filter E caused by blockages, etc., is accelerating. Thus, by using the external static pressure as the first piece of information, the lifespan of the filter E can be determined.

[0144] The ventilation control system 10 (control system) of the embodiment includes a control device C, a first ventilation device U1, a second ventilation device U2, and a third ventilation device U3. With such a ventilation control system 10, the reduction in the ventilation state of the indoor space can be suppressed.

[0145] (Modification 1 of the first embodiment)

[0146] like Figure 5 As shown, each ventilation device U in this example includes a dust sensor 41 and a wind speed sensor 42. In the following description, a structure different from the first embodiment described above will be presented.

[0147] Dust sensor 41 and wind speed sensor 42 are arranged upstream of filter E in air intake passage 26. Dust sensor 41 detects dust, pollen, and other particulate matter in the air flowing into air supply passage 26 from outdoor air inlet 22. Wind speed sensor 42 detects the wind speed in air supply passage 26 before it passes through filter E.

[0148] In this example, the calculation unit 52 calculates the amount of particles attached to the filter E. Specifically, the calculation unit 52 calculates the estimated amount of particles attached to the filter E based on the detection value of the dust sensor 41 and the air velocity in the air supply passage 26. The particles are the deposits of this disclosure. Based on the amount of particles larger than a specified particle size (e.g., particles with a particle size large enough to not pass through the filter) detected by the dust sensor 41 per unit time and the air velocity, the amount of particles attached to the filter E over a certain period of time can be estimated.

[0149] In this example, the acquisition unit 54 acquires first information, which shows: information indicating the operating time of each ventilation device U, and the environmental conditions affecting the lifespan of each filter E. The environmental conditions refer to the degree of air pollution; in this example, the environmental conditions are represented by the amount of particles attached to the filter E, as estimated by the calculation unit 52. It can be deduced that the greater the amount of attached particles, the more severe the performance degradation of the filter E (the shorter its lifespan).

[0150] In this example, the second control unit C2 causes each ventilation device U to operate in conjunction with the first information obtained by the acquisition unit 54. Specifically, the second control unit C2 causes the first ventilation device U1 to the third ventilation device U3 to operate in conjunction with the first ventilation device U1 to the third ventilation device U3 based on the information on the operating time of each ventilation device U obtained by the acquisition unit 54 and the amount of particles attached to the filter E provided on each ventilation device U.

[0151] Therefore, the lifespan of each filter E1 to E3 can be controlled. Based on the first information, the first to fourth operating modes can be executed in the same manner as in the first embodiment described above.

[0152] (Modification 2 of the first embodiment)

[0153] Each ventilation device U in this example includes a dust sensor 41 and a wind speed sensor 42. The following description will explain a structure different from the first embodiment described above.

[0154] The detection unit 51 detects environmental information when the ventilation device U is operating. Specifically, the detection unit 51 detects the amount of particles attached to the filter E based on the information detected by the dust sensor 41 and the wind speed sensor 42, as calculated by the calculation unit 52.

[0155] The input unit 53 receives the selected operating mode. The selection of the operating mode can be performed by the user or automatically. For example, the input unit 53 receives the first operating mode or the second operating mode described in the first embodiment.

[0156] The second control unit C2 controls the operation of each ventilation unit U based on environmental information detected by the detection unit 51 and the operating mode input to the input unit 53. The detection unit 51 can also detect the status of each filter E. Specifically, the detection unit 51 can also detect the external static pressure of each ventilation unit U, the power consumption of each air supply fan 31, or the fan speed. In this case, the second control unit C2 controls the operation of each ventilation unit U based on the status of each filter E detected by the detection unit 51 and the operating mode input to the input unit 53.

[0157] (Second Implementation)

[0158] like Figure 6 As shown, the control device C in this example is suitable for multiple electric dust collectors U (including a first electric dust collector U1 and a second electric dust collector U2) arranged in an indoor space. The control system 10 in this example has the control device C and multiple electric dust collectors U.

[0159] In this example, the device U disclosed herein is an electric dust collector U. The electric dust collector U includes an electrode unit E, a fan 61, and a camera 62. The electrode unit E, the fan 61, and the camera 62 are arranged in an air passage 65 that connects the air inlet 63 and the air outlet 64 of the electric dust collector U.

[0160] Fan 61 delivers air from air inlet 63 to air outlet 64 in air passage 65.

[0161] Electrode section E collects dirt such as dust contained in the air drawn into the indoor space by air inlet 63. Electrode section E is the device E disclosed herein. Specifically, electrode section E has a discharge electrode EL1 and a dust collecting electrode EL2. When a voltage is applied between the discharge electrode EL1 and the dust collecting electrode EL2, the dust in the air drawn into the air passage 65 is charged, and the charged dust is attracted to the dust collecting electrode EL2. When the operating time increases and the amount of dust and other particles in the air increases, the amount of particles adhering to electrode section E increases, and the lifespan is shortened.

[0162] In this example, the first information of this disclosure is based on image data of the electrode portion E and its surrounding area captured by the camera 62. Specifically, the first information is the degree of contamination caused by particles in the electrode portion E and its surrounding area, as determined based on the image data.

[0163] In this example, the control device C also operates multiple electric dust collectors U in conjunction with each other based on first information related to the lifespan of the electrode section E provided in each electric dust collector U (including first information related to the lifespan of the first electrode section E1 of the first electric dust collector U1 and the lifespan of the second electrode section E2 of the second electric dust collector U2). This allows for control over the lifespan of the electrode section E of each electric dust collector U.

[0164] In this example, the first information can also be the sensor value of the dust sensor (not shown) installed in the electric dust collector U. Specifically, the dust sensor is arranged downstream of the electrode section E in the air passage 65. It is known that when the detected dust amount of the dust sensor increases, the dust collection effect of the electrode section E decreases. In this way, the first information can be the sensor value of the dust sensor.

[0165] (Third Implementation)

[0166] The control system 10 of the third embodiment is applicable to multiple machine tools arranged in a workroom in a factory or similar facility. In this case, the device U of this disclosure is a machine tool (not shown). The control system 10 includes a control device C and multiple machine tools.

[0167] The machine tool has a drill (not shown) and a detection unit (not shown) for detecting the wear of the drill. The drill is the device E of this disclosure. The detection unit detects the degree of wear of the drill. The higher the detection value, the higher the degree of wear. In this example, the first information about the lifespan of the drill is the detection value of the detection unit. In this way, the control device C causes multiple machine tools to operate in conjunction with each other based on the first information related to the lifespan of each drill. Thus, the lifespan of each drill E can be controlled.

[0168] (Fourth Implementation)

[0169] The control system 10 of the fourth embodiment is applicable to automobiles. Specifically, in this example, the device U is a drive wheel of the automobile. The device E in this example consists of four tires mounted on the drive wheels. The control system 10 includes a detection device for detecting the wear of each tire. In this case, the wear of the tire detected by the detection device becomes first information related to the tire's lifespan. The control device C, based on the first information, causes the drive wheels to operate in a coordinated manner. For example, if the wear development of the four tires differs, the control device C controls the operation so that the wear of the four tires is approximately the same, causing the four drive wheels to operate in a coordinated manner.

[0170] (Other implementation methods)

[0171] The above implementation method can also adopt the following structure.

[0172] In the above embodiment, the information related to the lifespan of each filter E may not be based on external static pressure. Specifically, the calculation unit 52 may predict the remaining lifespan of each filter E based on the power consumption of each air supply fan 31 and the motor speed. In this case, the acquisition unit 54 acquires the remaining lifespan of each filter E predicted by the calculation unit 52. The second control unit C2, based on the information on the remaining lifespan of each filter E acquired by the acquisition unit 54, causes the first ventilation device U1 to the third ventilation device U3 to operate in conjunction.

[0173] In a variation of the first embodiment, the first information may not include the operating time of each ventilation device U. That is, the first information may only be environmental information that affects the lifespan of the filter E.

[0174] In the first embodiment and its variations described above, the first information related to the lifespan of the filter E may also be the motor speed of the air supply fan 31 and the power consumption of the air supply fan 31. The first information related to the lifespan of the filter E may also be the motor speed of the exhaust fan 32 and the power consumption of the exhaust fan 32.

[0175] In a variation of the first embodiment described above, the first information related to the lifespan of the filter E may also be the amount of change in the particles attached to the filter E over time.

[0176] In the first embodiment and its variations described above, the first information related to the lifespan of the filter E can also be the external static pressure and the amount of particles adhering to the filter E. By having two pieces of first information, the lifespan of the filter E can be controlled with greater precision.

[0177] In the first embodiment described above, the maintenance schedule may also include periods other than the replacement period for filter E. For example, the maintenance schedule may include periods such as the inspection and repair of filter E.

[0178] In the first embodiment described above, maintenance may include the installation, inspection, or repair of each filter E. A second cost may be the expense required to install, inspect, or repair the filters E in the ventilation unit U. This cost may include the cost of spare parts required for installation, inspection, or repair, as well as the labor costs associated with them.

[0179] The device U disclosed herein can be any device that includes a filter E, and may also be an air purifier, air conditioning unit, bag filter, humidifier, dehumidifier, water purifier, etc. The fluid flowing within the device U may be a liquid such as water.

[0180] The device E disclosed herein may be a device or component whose performance deteriorates as the device U operates.

[0181] The ventilation device U can have two or more filters E. In this case, the control device C causes multiple ventilation devices U to operate in conjunction with each other based on the first information of each filter E.

[0182] The equipment E installed in the ventilation system U can be any equipment or component whose performance deteriorates rapidly with operation, and may also include equipment and components other than the filter E. The ventilation system U may also have equipment including the filter E.

[0183] The second control unit C2 can also be a cloud. The second control unit C2 can be a controller fixed in an indoor space or a controller deployed outdoors.

[0184] In the first embodiment described above, the information related to the specified application that is input to the input unit 53 may also be input without being based on the user's operation. For example, when measuring the power consumption of the air supply fan 31 and the exhaust fan 32, the measured value may also be automatically input to the input unit 53.

[0185] In the first embodiment described above, maintenance can also refer to repairs, maintenance checks, etc., of the filter E. The maintenance period can also refer to the period during which the filter E is repaired, maintained, or checked.

[0186] The control device C of the first embodiment described above can be controlled multiple times during the period up to the maintenance period. This control can be performed periodically or irregularly. For example, this control can also be performed based on changes in the indoor environment (room temperature, humidity, oxygen concentration, etc.).

[0187] In the first embodiment described above, the control mode generated by the operation planning unit 55 can be a control mode for both the air supply fan 31 and the exhaust fan 32, or it can be a control mode for only the air supply fan 31.

[0188] In the first embodiment described above, the information related to the lifespan of the filter E may include, in addition to the external static pressure, the operating time of each ventilation device U.

[0189] The above describes the embodiments and variations, but it should be understood that various changes in manner or detailed structure can be made without departing from the spirit and scope of the claims. The above embodiments and variations can also be appropriately combined or substituted as long as they do not impair the function of the object of this disclosure. The terms "first" and "second" used above are only used to distinguish statements containing the above terms and are not intended to limit the number or order of the statements.

[0190] -Industry Applicability-

[0191] In summary, this disclosure is useful for control devices and control systems.

[0192] - Symbol Explanation -

[0193] E1 First Filter (First Device)

[0194] E2 Second Filter (Second Device)

[0195] U1 First Ventilation Device (First Device)

[0196] U2 Second Ventilation Device (Second Device)

[0197] C2 Second Control Unit (Control Unit)

[0198] 22 suction port

[0199] 25 spray nozzle

[0200] 26 Fluid pathways

[0201] 31. Air supply fan (conveyor)

[0202] 53 Input Section

[0203] 54 Acquisition Department

Claims

1. A control device for controlling a first ventilation device (U1) and a second ventilation device (U2) for exchanging air in the same indoor space, characterized in that: The control device includes an acquisition unit (54) and a control unit (C2). The acquisition unit (54) acquires first information, which includes: information on the operating time of the first ventilation device (U1) and the environmental conditions affecting the lifespan of the first device (E1) installed in the first ventilation device (U1); and information on the operating time of the second ventilation device (U2) and the environmental conditions affecting the lifespan of the second device (E2) installed in the second ventilation device (U2). The control unit (C2) uses the first information obtained by the acquisition unit (54) to cause the first ventilation device (U1) and the second ventilation device (U2) to operate in conjunction. The first ventilation device (U1) and the second ventilation device (U2) respectively have an air intake (22), an air outlet (25), and a fluid passage (26) connecting the air intake (22) and the air outlet (25). The first device (E1) and the second device (E2) are filters (E) arranged in the fluid passage (26). The information indicating the environmental state is information indicating the degree of air pollution in the fluid passage (26).

2. A control device for controlling a first ventilation device (U1) and a second ventilation device (U2) for exchanging air in the same indoor space, characterized in that: The control device includes an acquisition unit (54) and a control unit (C2). The acquisition unit (54) acquires first information related to the lifespan of the first device (E1) installed in the first ventilation device (U1) and the second device (E2) installed in the second ventilation device (U2). The control unit (C2) allocates the air volume of the first ventilation device (U1) and the second ventilation device (U2) according to the first information obtained by the acquisition unit (54) to meet the necessary air volume for the indoor space, thereby setting the operating state of the first ventilation device (U1) and the second ventilation device (U2), and causing the first ventilation device (U1) and the second ventilation device (U2) to operate in conjunction with each other according to the operating state. The first ventilation device (U1) and the second ventilation device (U2) respectively have an intake port (22) for drawing in fluid, an outlet port (25) for discharging fluid, and a fluid passage (26) connecting the intake port (22) and the outlet port (25). The first device (E1) and the second device (E2) are filters (E) arranged in the fluid passage (26). The first ventilation device (U1) and the second ventilation device (U2) further include a conveyor (31) that delivers air in the fluid passage (26) under the drive of a motor. The first information is the static pressure of the air, which is calculated based on the power consumption of each of the conveyors (31) and the rotational speed of the motor.

3. A control device for controlling a first ventilation device (U1) and a second ventilation device (U2) for exchanging air in the same indoor space, characterized in that: The control device includes a detection unit (51), a calculation unit (52), an acquisition unit (54), and a control unit (C2). The detection unit (51) detects the current operating status of the first ventilation device (U1) and the second ventilation device (U2). The calculation unit (52) predicts the remaining lifespan of the first device (E1) installed in the first ventilation device (U1) and the second device (E2) installed in the second ventilation device (U2) based on the current operating status detected by the detection unit (51). The acquisition unit (54) acquires first information, which shows the remaining lifespan of the first device (E1) and the second device (E2) as predicted by the calculation unit (52). The control unit (C2) uses the first information obtained by the acquisition unit (54) to cause the first ventilation device (U1) and the second ventilation device (U2) to operate in conjunction. The first ventilation device (U1) and the second ventilation device (U2) respectively have an intake port (22) for drawing in fluid, an outlet port (25) for discharging fluid, and a fluid passage (26) connecting the intake port (22) and the outlet port (25). The first device (E1) and the second device (E2) are filters (E1, E2) arranged in the fluid passage (26). The first ventilation device (U1) and the second ventilation device (U2) further include a conveyor (31) that delivers air in the fluid passage (26) under the drive of a motor. The detection unit (51) detects the power consumption of each of the conveyors (31) and the rotational speed of the motor. The first information is the static pressure of the air conveyed by each of the conveyors (31). The static pressure is calculated based on the power consumption of each of the conveyors (31) and the rotational speed of the motor detected by the detection unit (51).

4. The control device according to any one of claims 1 to 3, characterized in that: The control unit (C2) operates the first ventilation device (U1) and the second ventilation device (U2) in a manner that the end of the lifespan of the filter (E) of the first ventilation device (U1) and the filter (E) of the second ventilation device (U2) are at the same time, so that the first ventilation device (U1) and the second ventilation device (U2) operate in conjunction.

5. The control device according to any one of claims 1 to 3, characterized in that: The control unit (C2) enables the first ventilation device (U1) and the second ventilation device (U2) to operate in conjunction with each other, so that the lifespan of the filter (E) of the first ventilation device (U1) and the filter (E) of the second ventilation device (U2) ends in sequence.

6. The control device according to any one of claims 1 to 3, characterized in that: The control device also includes an input unit (53) into which information related to the prescribed use of the filter (E1) of the first ventilation device (U1) and the filter (E2) of the second ventilation device (U2) is input according to the user's operation. The control unit (C2) uses the first information obtained by the acquisition unit (54) and the information related to the specified application that is input to the input unit (53) to make the first ventilation device (U1) and the second ventilation device (U2) operate in conjunction.

7. The control device according to claim 6, characterized in that: The information related to the application of the aforementioned regulations is a maintenance schedule for maintaining the filter (E1) of the first ventilation device (U1) and the filter (E2) of the second ventilation device (U2). The control unit (C2) causes the first ventilation device (U1) and the second ventilation device (U2) to operate in conjunction with each other so that the lifespan of the filter (E1) of the first ventilation device (U1) and the filter (E2) of the second ventilation device (U2) ends according to the maintenance schedule.

8. The control device according to claim 7, characterized in that: The maintenance schedule includes the replacement periods for the filter (E1) of the first ventilation device (U1) and the filter (E2) of the second ventilation device (U2).

9. The control device according to claim 6, characterized in that: The information relevant to the application of the aforementioned regulations includes the power consumption of the first ventilation device (U1) and the second ventilation device (U2), and the first cost required for the maintenance of the filters (E1) of the first ventilation device (U1) and the filters (E2) of the second ventilation device (U2). The control unit (C2) enables the first ventilation device (U1) and the second ventilation device (U2) to operate in conjunction with each other in such a way that the total cost, including the first cost and the second cost, is below the target value. The second cost is the cost required up to the maintenance period of the filter (E1) of the first ventilation device (U1) and the filter (E2) of the second ventilation device (U2).

10. The control device according to claim 9, characterized in that: The first cost includes the cost of setting up, replacing, inspecting or repairing the filter (E1) of the first ventilation device (U1) and the filter (E2) of the second ventilation device (U2), including the cost of spare parts or labor required for maintenance.

11. The control device according to claim 1, characterized in that: The first piece of information is the amount of deposits attached to the filter (E) or the amount of change of those deposits over time.

12. The control device according to claim 1, characterized in that: The first ventilation device (U1) and the second ventilation device (U2) further include a conveyor (31), which conveys fluid in the fluid passage (26) under the drive of a motor. The first information is the motor's rotational speed, power consumption, operating time, or the static pressure of the fluid conveyed by the conveyor (31).

13. A control system, characterized in that: The control system includes the control device as described in any one of claims 1 to 3, the first ventilation device (U1), and the second ventilation device (U2).

Images