JP6967486B2 - Ventilation system - Google Patents

Description

The techniques disclosed herein relate to ventilation systems.

Patent Document 1 includes a ventilation device capable of performing a ventilation operation for ventilating indoor air, a cooking device for heating a cooked food, and a control means for controlling the operation of the ventilation device and the cooking device. The system is disclosed. The cooking device includes a heating unit for heating the cooked food. The ventilator is equipped with a fan that exhausts air from the room to the outside. The control means identifies the ventilation air volume, which is the air volume required during the ventilation operation, based on the operating state of the heating unit, and specifies the first command value for operating the fan based on the ventilation air volume. The fan is operated by using the first command value.

Japanese Unexamined Patent Publication No. 2002-295833

In a state where the fan is driven based on the operating state of the heating unit of the cooking device, the actual air volume of the air exhausted from the room to the outside by the fan may be insufficient due to various causes.

This specification discloses a technique capable of appropriately ventilating the air in the room in which the ventilation device is installed.

The ventilation system disclosed in the present specification includes a ventilation device capable of performing a ventilation operation for ventilating indoor air, a cooking device for heating a cooked food, and a control for controlling the operation of the ventilation device and the cooking device. Means and. The cooking device includes a heating unit for heating the cooked food. The ventilation device includes a fan that exhausts air from the room to the outside. The control means identifies a ventilation air volume, which is an air volume required during the ventilation operation, based on the operating state of the heating unit, and a first command for driving the fan based on the ventilation air volume. A predetermined condition for specifying a value, operating the fan using the first command value, and indicating that the actual air volume of the air exhausted from the room to the outside by the fan is less than the ventilation air volume. When is satisfied, the heating amount of the heating unit is limited, and each time the fan is operated by using the first command value, the fan rotation speed, which is the rotation speed of the fan, is transmitted to the external server. The external server receives the fan rotation speed from the control means, stores the fan rotation speed in the memory, and first among the plurality of the fan rotation speeds stored in the memory, the memory first. When the rotation speed difference, which is the value obtained by subtracting the fan rotation speed received this time from the stored fan rotation speed, is less than the second determination rotation speed, it is determined that the ventilation device is abnormal .

The actual air volume of the air exhausted from the room to the outside by the fan varies depending on the condition of the ventilation system and the like. For example, in a ventilation device that exhausts by a sirocco fan, the rotation speed of the fan with oil stains attached is higher than the rotation speed of the fan with no oil stains attached to the ventilation device. The amount of air exhausted from the room to the outside by the fan when the ventilation device is oily is larger than the amount of air exhausted from the room to the outside by the fan when the ventilation device is not oily. It will be less. According to the above configuration, the ventilation device limits the heating amount of the heating unit when a predetermined condition is satisfied. This limits the amount of ventilation air that must be exhausted from the room to the outside by the fan. Therefore, the ventilation device can sufficiently ventilate the air in the room.

The heating cooker may include a plurality of heating units. The control means reduces the heating amount of the heating unit during operation or during operation when a predetermined condition is satisfied in a state where two or more heating units out of a plurality of heating units are operating. The operation of at least one heating unit of the heating unit may be stopped.

According to the above configuration, the control means reduces the heating amount of the heating unit during operation when a predetermined condition is satisfied. This reduces the amount of ventilation air that must be exhausted from the room to the outside by the fan. Therefore, the ventilation device can sufficiently ventilate the air in the room.

Alternatively, the control means stops the operation of at least one heating unit among the operating heating units when a predetermined condition is satisfied. By stopping the operation of the heating unit, the amount of ventilation air that must be exhausted from the room to the outside by the fan is reduced. Therefore, even if the actual air volume of the air exhausted from the room to the outside by the fan is less than the ventilation air volume, if a predetermined condition is satisfied, the room air can be sufficiently ventilated by the ventilation device.

Another ventilation system disclosed herein controls the operation of a ventilator capable of performing a ventilation operation to ventilate the air in the room, a cooker for heating the cooked food, and the ventilator and the cooker. It is provided with a control means for the operation. The cooking device includes a heating unit for heating the cooked food. The ventilation device includes a fan that exhausts air from the room to the outside. The control means can operate the fan by using the first operation command value and the second operation command value which is larger than the first operation command value by the first predetermined value. There, on the basis of the operating state of the heating unit, the ventilating identify ventilation power is the amount of wind required during operation on the basis of the ventilation power, the first operation command value and the second operation command value one of the operation command value of, identified as a first command value for operating the fan, by using the first command value, to operate the fan, the air being exhausted by the fan When a predetermined condition indicating that the actual air volume is less than the ventilation air volume is satisfied, the first command value is set to the second command value so that the air volume exhausted from the room by the fan is increased. Change to a value. The second command value is larger than the first command value by a second predetermined value, and the second predetermined value is smaller than the first predetermined value.

According to the above configuration, the ventilator changes the first command value to the second command value so that the amount of air exhausted from the room to the outside by the fan increases when a predetermined condition is satisfied. As a result, the amount of air exhausted from the room to the outside by the fan increases. Therefore, the ventilation device can sufficiently ventilate the air in the room.

The ventilator may further include a rotation speed sensor that detects the rotation speed of the fan, which is the rotation speed of the fan. The control means may determine that the predetermined condition is satisfied when the fan rotation speed exceeds the first determination rotation speed.

The fan speed with oil stains on the ventilator is higher than the fan speed with no oil stains on the ventilator. Further, when oil stains adhere to the ventilation device, the amount of air exhausted from the room to the outside by the fan is reduced. Therefore, the control means can determine that the actual air volume of the air exhausted from the room to the outside by the fan is less than the ventilation air volume when the fan rotation speed exceeds the first determination rotation speed.

In addition, the fan rotation speed when dust or oil adheres to the exhaust port through which the air exhausted from the room to the outside by the fan passes is higher than the fan rotation speed when dust or oil does not adhere to the exhaust port. Will also grow. This is because the load acting on the fan is small. If dust or oil adheres to the exhaust port, less air will be exhausted from the room to the outside by the fan. Therefore, the control means can determine that the actual air volume of the air exhausted from the room to the outside by the fan is less than the ventilation air volume when the fan rotation speed exceeds the first determination rotation speed.

The ventilation system is further equipped with an exhaust port for exhausting air to the outside, an exhaust path communicating with the exhaust port and the ventilation device, and a differential pressure sensor for detecting the pressure difference between the upstream side and the downstream side of the exhaust path. You may. The control means may determine that the predetermined condition is satisfied when the pressure difference exceeds the predetermined pressure.

The pressure difference detected by the differential pressure sensor when dust or oil is attached to the exhaust path is larger than the pressure difference detected by the differential pressure sensor when dust or oil is not attached to the exhaust path. .. When dust or oil adheres to the exhaust path, less air is exhausted from the room to the outside by the fan. Therefore, the control means determines that the actual air volume of the air exhausted from the room to the outside by the fan is less than the ventilation air volume when the pressure difference detected by the differential pressure sensor exceeds a predetermined pressure. Can be done.

In addition, the above ventilation system may further include a notification unit. The control means may operate the notification unit when a predetermined condition is satisfied.

According to the above configuration, the control means operates the notification unit when a predetermined condition is satisfied. Therefore, the user can know that the actual air volume of the air exhausted from the room to the outside by the fan is less than the ventilation air volume. As a result, the user can check the state of the ventilation device and perform necessary maintenance.

In addition, the ventilation system described above may further include an external server. The control means may transmit the fan rotation speed, which is the rotation speed of the fan, to the external server each time the fan is operated by using the first command value. The external server receives the fan rotation speed from the control means, stores the fan rotation speed in the memory, and receives this time from the fan rotation speed first stored in the memory among the plurality of fan rotation speeds stored in the memory. When the rotation speed difference, which is the value obtained by subtracting the fan rotation speed, is less than the second determination rotation speed, it may be determined that the ventilation device is abnormal.

Of the multiple fan speeds stored in the memory of the external server, the fan speed stored first in the memory (hereinafter referred to as the "initial speed") is the fan speed in which the range hood is in a normal state. Is likely to be. Therefore, the external server can appropriately determine whether or not an abnormality has occurred in the range hood by using the initial rotation speed and the fan rotation speed received this time.

Another ventilation system disclosed herein controls the operation of a ventilator capable of performing a ventilation operation to ventilate the air in the room, a cooker for heating the cooked food, and the ventilator and the cooker. It is provided with a control means for the operation. The cooking device includes a heating unit for heating the cooked food. The ventilation device includes a fan that exhausts air from the room to the outside. The control means can operate the fan by using the first operation command value and the second operation command value which is larger than the first operation command value by the first predetermined value. There, on the basis of the operating state of the heating unit, the specified ventilation air volume is the amount of wind required during ventilation operation, on the basis of the ventilation power, the first operation command value and the second operation command The operation command value of one of the values is specified as the first command value for operating the fan, and the fan is operated by using the first command value to operate the heating cooker. The first command value is changed to the second command value so that the amount of air exhausted from the room by the fan increases when a predetermined condition indicating that the above is abnormal is satisfied. The second command value is larger than the first command value by a second predetermined value, and the second predetermined value is smaller than the first predetermined value.

If there is an abnormality in the operation of the cooker, the amount of air that must be exhausted from the room to the outside by the fan increases. According to the above configuration, the ventilator changes the first command value to the second command value so that the amount of air exhausted from the room to the outside by the fan increases when a predetermined condition is satisfied. As a result, the amount of air exhausted from the room to the outside by the fan increases. Therefore, the ventilation device can sufficiently ventilate the air in the room.

The above heating unit may heat the cooked food by utilizing the heat obtained by burning the fuel. The ventilation system may further include gas detecting means for detecting the carbon monoxide concentration, which is the concentration of carbon monoxide generated by the operation of the heating unit. The control means may determine that the predetermined condition is satisfied when the carbon monoxide concentration exceeds the predetermined concentration.

If there is something wrong with the cooker, carbon monoxide generated by the combustion of fuel will increase. According to the above configuration, the ventilator changes the first command value to the second command value so that the amount of air exhausted from the room to the outside by the fan increases when the carbon monoxide concentration exceeds a predetermined concentration. change. Therefore, carbon monoxide generated by the combustion of fuel can be appropriately ventilated from indoors to outdoors.

In addition, the above ventilation system may further include a notification unit. The control means may operate the notification unit when a predetermined condition is satisfied.

According to the above configuration, the control means operates the notification unit when a predetermined condition is satisfied. Therefore, the user can know that some abnormality has occurred in the cooking device. As a result, the user can check the state of the cooking device and perform necessary maintenance.

In addition, the ventilation system described above may further include an external server. The control means may transmit heating information regarding the operation of the heating unit to an external server each time the cooking device is operated. The external server receives the heating information from the control means, stores the heating information in the memory, and the initial information specified based on the heating information first stored among the plurality of heating information stored in the memory. The heating information received this time may be used to determine whether or not an abnormality has occurred in the cooking device.

Of the plurality of heating information stored in the memory of the external server, the heating information stored first in the memory is likely to be the heating information received when the cooking cooker is in a normal state. Therefore, the external server uses the initial information specified based on the heating information first stored among the plurality of heating information stored in the memory and the heating information received this time to make the cooking cooker. It is possible to appropriately judge whether or not an abnormality has occurred.

It is a figure which shows the structure of the ventilation system which concerns on 1st Example. It is an elevation view of the room where the equipment system which concerns on 1st Embodiment is installed. It is a perspective view which looked at the cooker which concerns on 1st Embodiment from the front side. It is a figure which shows the 1st operation table which concerns on 1st Embodiment. It is a figure which shows the 1st air volume table which concerns on 1st Example. It is a flowchart of the test run process which concerns on 1st Example. It is a flowchart of the automatic ventilation operation processing which concerns on 1st Embodiment. It is a flowchart of the operation air volume specifying process which concerns on 1st Embodiment. In the first embodiment, it is a sequence to increase the supply voltage to the motor. It is a flowchart of the automatic ventilation operation processing which concerns on 2nd Embodiment. It is a flowchart of the operation air volume specifying process which concerns on 2nd Embodiment. In the second embodiment, it is a sequence for limiting the heating amount of the cooking device. It is a figure which shows the 2nd operation table which concerns on 3rd Example. It is a figure which shows the 2nd air volume table which concerns on 3rd Example. It is a flowchart of the automatic ventilation operation processing which concerns on 3rd Example. It is a flowchart of the operation air volume specifying process which concerns on 3rd Embodiment. It is a flowchart of CO detection processing which concerns on 3rd Example. It is a flowchart of abnormality determination processing which concerns on 3rd Embodiment. In the third embodiment, it is a sequence to increase the supply voltage to the motor.

(First Example)
(Configuration of ventilation system 2)
The ventilation system 2 will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, the ventilation system 2 includes an equipment system 4 and a management server 200.

(Configuration of equipment system 4)
As shown in FIG. 1, the equipment system 4 includes a range hood 10, a cooking cooker 30, and a wireless LAN router 6. The range hood 10 and the cooker 30 are installed in the same room 90 (see FIG. 2) in the same house. The range hood 10 and the cooker 30 can access the Internet 8 via the wireless LAN router 6.

(Composition of range hood 10)
The range hood 10 will be described with reference to FIGS. 1, 2, and 4. The range hood 10 is a device capable of performing a ventilation operation for ventilating the air in the room 90. As shown in FIG. 2, an exhaust duct 80 is connected to the range hood 10. The exhaust duct 80 is connected to the exhaust port 82. The exhaust port 82 is blocked by the bird net 84. The air in the room 90 is exhausted to the outside through the range hood 10, the filter 86, the exhaust duct 80, and the exhaust port 82.

The range hood 10 is arranged above the cooking device 30. The range hood 10 includes a fan 12, a motor 14 (see FIG. 1), a ventilation operation unit 16, a rotation speed sensor 18 (see FIG. 1), a buzzer 19 (see FIG. 1), and a ventilation control unit 20 (see FIG. 1). 1) and.

The fan 12 is rotated by the drive of the motor 14 to exhaust the air in the room 90 to the outside. The fan 12 is a sirocco fan. When the rotation speed of the fan 12 changes, the air volume of the range hood 10 changes. The rotation speed of the fan 12 (hereinafter referred to as "fan rotation speed") is detected by the rotation speed sensor 18.

The ventilation operation unit 16 includes a power switch, a mode selection switch, an air volume adjustment switch, and the like. The power switch is a switch for switching ON and OFF of the ventilation operation by the range hood 10. The mode selection switch is an automatic ventilation operation in which the air volume during the ventilation operation is automatically determined by the ventilation control unit 20, and a manual ventilation in which the operating air volume during the ventilation operation is determined based on the user's operation on the air volume adjustment switch. It is a switch for switching between operation and operation. The air volume adjustment switch is a switch for switching the operating air volume (“weak”, “medium”, “strong”) of the range hood 10 during the manual ventilation operation.

The ventilation control unit 20 includes a memory 22. The ventilation control unit 20 controls the operation of the range hood 10 according to a program (not shown) stored in the memory 22. Specifically, the ventilation control unit 20 controls the operation of the motor 14 to cause the range hood 10 to execute the ventilation operation. Further, the first operation table 24 is stored in the memory 22. The first operation table 24 is a table used in the test run process (FIG. 6) and the automatic ventilation operation process (FIG. 7), which will be described later. As shown in FIG. 4, in the first operation table 24, the operation mode, the supply voltage, the initial rotation speed, and the first determination rotation speed are associated with each other. The operation mode is information received from the cooking device 30. The supply voltage is a voltage value supplied to the motor 14, and is predetermined. The initial rotation speed and the first determination rotation speed are rotation speeds set in the trial run process described later.

(Structure of cooking device 30)
The cooking device 30 will be described with reference to FIGS. 1 to 3 and 5. As shown in FIG. 2, the cooking cooker 30 is installed below the range hood 10. As shown in FIG. 3, the cooking cooker 30 is a gas combustion type built-in stove used by being incorporated in a system kitchen. The cooking cooker 30 includes a main body 32 and a top plate 34 which is arranged on the upper part of the main body 32 and is exposed to the counter top of the system kitchen. The top plate 34 is provided with three trivets 36a, 36b, 36c that support a cooking container 70 (see FIG. 2) such as a pot or a frying pan, which is an object to be cooked, and corresponding to the three trivets 36a, 36b, 36c, respectively. There are three stove burners 38a, 38b, 38c that heat the cooking object supported by each of the trivets 36a, 36b, 36c. A gas supply path (not shown) is connected to the stove burner 38a. The gas supply path is provided with a flow rate adjusting valve (not shown) for adjusting the amount of combustion gas supplied to the stove burner 38a. The stove burner 38a is ignited by operating an igniter (not shown) while the combustion gas is being supplied to the stove burner 38a. By adjusting the supply amount of the combustion gas to the stove burner 38a, the heating amount of the stove burner 38a can be adjusted. Then, the fire of the stove burner 38a is extinguished by stopping the supply of the combustion gas to the stove burner 38a. The stove burners 38b and 38c have the same structure as the stove burner 38a. In FIG. 1, the stove burners 38a, 38b, and 38c are collectively referred to as "stove burner 38".

The main body 32 includes a grill storage 40 provided inside the main body 32 to store food, a grill door 42 arranged in front of the main body 32 to open and close the grill storage 40, and a power supply provided on the right side of the grill door 42. It includes a switch 46, three stove operating units 48a, 48b, and 48c provided on the right side of the grill door 42, and a grill operating unit 50 provided on the left side of the grill door 42. Inside the grill storage 40, a grill burner 40a (see FIG. 1) for heating the foodstuffs housed in the grill storage 40 is provided. In FIG. 1, the stove operation units 48a, 48b, and 48c are collectively referred to as "stove operation unit 48".

The stove operation units 48a, 48b, and 48c correspond to the stove burners 38a, 38b, and 38c, respectively. The stove operation unit 48a is an operation unit for igniting and extinguishing the stove burner 38a and adjusting the heating amount of the stove burner 38a. The stove operation unit 48a is an alternate type switch. When the user executes an operation for moving the stove operation unit 48a from the fire extinguishing position to the ignition position (hereinafter referred to as “ignition operation”), the stove burner 38a is ignited and the user ignites the stove operation unit 48a. When the operation for moving from the position to the fire extinguishing position (hereinafter referred to as "fire extinguishing operation") is executed, the stove burner 38a is extinguished. The ignition position is a position where the front surface of the stove operation unit 48a protrudes forward from the front surface of the main body 32, and the fire extinguishing position is a position where the stove operation unit 48a is housed in the main body 32. Further, the user can adjust the heating amount of the stove burner 38a by operating the stove operation unit 48a clockwise or counterclockwise while the stove operation unit 48a is located at the ignition position. The stove operation units 48b and 48c have the same structure as the stove operation unit 48a.

The structure of the grill operation unit 50 is the same as the structure of the stove operation unit 48a. By operating the grill operation unit 50, the user can ignite and extinguish the grill burner 40a and adjust the heating amount of the grill burner 40a.

Further, as shown in FIG. 1, the cooking cooker 30 includes a heating control unit 60. The heating control unit 60 includes a memory 62. The heating control unit 60 controls the operation of the heating cooker 30 according to a program (not shown) stored in the memory 62. The memory 62 includes a first air volume table 64. The first air volume table 64 is a table for specifying the air volume of the range hood 10 during the automatic ventilation operation according to the driving state of each burner. The first air volume table 64 will be described with reference to FIG. In the first air volume table 64, “◯” and “×” indicate the driving state of each burner. "○" indicates that the burner is being driven, and "x" indicates that the burning of the burner is stopped. In the first air volume table 64, the operating air volume (“strong”, “medium”, “weak”) is associated with the driving state of each burner. In this embodiment, the maximum heating amount of the stove burners 38a and 38b is larger than the maximum heating amount of the stove burners 38c. Therefore, in the first air volume table 64, in a situation where two stove burners are driven, the operating air volume (that is, “medium”) when the stove burner 38a and the stove burner 38b are driven is the stove burner. The operating air volume is set higher than the operating air volume (that is, "weak") when one of the stove burners 38a and 38b and the stove burner 38c are driven. Further, when the grill burner 40a is driven, smoke and odor are more likely to be generated as compared with the case where the stove burner is driven. Therefore, in the first air volume table 64, the operating air volume when the grill burner 40a is driven is set to "medium" or "strong".

(Configuration of management server 200)
Subsequently, the management server 200 will be described. The management server 200 is a server for determining an abnormality of the range hood 10 based on the information received from the range hood 10. The management server 200 includes a server control unit 210. The server control unit 210 operates according to a program (not shown) stored in the memory 212.

(Process performed by the range hood 10; FIGS. 6 and 7)
Subsequently, the process executed by the ventilation control unit 20 of the range hood 10 will be described with reference to FIGS. 6 and 7.

(Test run process; Fig. 6)
With reference to FIG. 6, a test run process executed by the ventilation control unit 20 of the range hood 10 will be described. The trial run process is a process executed immediately after the range hood 10 is installed in the room 90 or the like. The ventilation control unit 20 starts the test run process when the user performs an operation for executing the test run process on the ventilation operation unit 16.

In S10, the ventilation control unit 20 operates the range hood 10 with the operating air volume “strong”. The ventilation control unit 20 supplies 70 [V] as a supply voltage to the motor 14. As a result, the motor 14 and the fan 12 are driven.

In S12, the ventilation control unit 20 uses the fan rotation speed detected by the rotation speed sensor 18 to specify the initial rotation speed of the operating air volume “strong”. Specifically, the ventilation control unit 20 first determines when the rotation speed fluctuation of the fan rotation speed during the first predetermined time (for example, 10 seconds) becomes a predetermined rotation speed (for example, 30 [rpm]) or less. The average value of the fan rotation speed during the time is specified as the initial rotation speed of the operating air volume "strong". When the ventilation control unit 20 specifies the initial rotation speed, the ventilation control unit 20 stores the initial rotation speed in the first operation table 24 of the memory 22.

In S14, the ventilation control unit 20 specifies the first determination rotation speed of the operating air volume “strong”. The ventilation control unit 20 uses the initial rotation speed specified in S12 to specify the first determination rotation speed corresponding to the operating air volume “strong”. The ventilation control unit 20 calculates the rotation speed obtained by adding 100 [rpm] to the initial rotation speed as the first determination rotation speed. For example, when the initial rotation speed is 1300 [rpm], the first determination rotation speed is calculated as 1400 [rpm] (see FIG. 4). Then, the ventilation control unit 20 stores the calculated first determination rotation speed in the first operation table 24.

In S20, the ventilation control unit 20 operates the range hood 10 at the operating air volume “medium”. The ventilation control unit 20 supplies 50 [V] as a supply voltage to the motor 14. As a result, the motor 14 and the fan 12 are driven.

In S22, the ventilation control unit 20 uses the fan rotation speed detected by the rotation speed sensor 18 to specify the initial rotation speed of the operating air volume “medium”. Similar to S12, the ventilation control unit 20 sets the average value of the fan rotation speed during the first predetermined time as the operating air volume when the rotation speed fluctuation of the fan rotation speed during the first predetermined time is equal to or less than the predetermined rotation speed. Specify as "medium" initial speed. When the ventilation control unit 20 specifies the initial rotation speed, the ventilation control unit 20 stores the initial rotation speed in the first operation table 24 of the memory 22.

In S24, the ventilation control unit 20 specifies the first determination rotation speed of the operating air volume “medium”. The ventilation control unit 20 uses the initial rotation speed specified in S22 to specify the first determination rotation speed corresponding to the operating air volume “medium”. The ventilation control unit 20 calculates the rotation speed obtained by adding 100 [rpm] to the initial rotation speed as the first determination rotation speed. Then, the ventilation control unit 20 stores the calculated first determination rotation speed in the first operation table 24.

In S30, the ventilation control unit 20 operates the range hood 10 with the operating air volume "weak". The ventilation control unit 20 supplies 30 [V] as a supply voltage to the motor 14. As a result, the motor 14 and the fan 12 are driven.

In S32, the ventilation control unit 20 uses the fan rotation speed detected by the rotation speed sensor 18 to specify the initial rotation speed of the operating air volume “weak”. Similar to the case of S12, the ventilation control unit 20 determines the average value of the fan rotation speed during the first predetermined time when the rotation speed fluctuation of the fan rotation speed during the first predetermined time becomes equal to or less than the predetermined rotation speed. Specify the initial rotation speed of the operating air volume "weak". When the ventilation control unit 20 specifies the initial rotation speed, the ventilation control unit 20 stores the initial rotation speed in the first operation table 24 of the memory 22.

In S34, the ventilation control unit 20 specifies the first determination rotation speed of the operating air volume "weak". The ventilation control unit 20 uses the initial rotation speed specified in S32 to specify the first determination rotation speed corresponding to the operating air volume “weak”. The ventilation control unit 20 calculates the rotation speed obtained by adding 100 [rpm] to the initial rotation speed as the first determination rotation speed. Then, the ventilation control unit 20 stores the calculated first determination rotation speed in the first operation table 24.

In S40, the ventilation control unit 20 transmits the initial rotation speed of each operating air volume to the management server 200. When the management server 200 receives the initial rotation speed of each operating air volume from the range hood 10, the management server 200 stores the initial rotation speed of each operating air volume in the memory 212 of the management server 200. When S40 ends, the process of FIG. 6 ends.

(Automatic ventilation operation processing; Fig. 7)
Subsequently, with reference to FIG. 7, the automatic ventilation operation process executed by the ventilation control unit 20 of the range hood 10 will be described. The ventilation control unit 20 starts the automatic ventilation operation process when the user executes an operation for starting the automatic ventilation operation process on the ventilation operation unit 16. The following processing will be described by taking as an example the situation in which the first operation table 24 is in the state shown in FIG.

In S60, the ventilation control unit 20 determines whether or not the drive signal has been received from the cooking cooker 30. The drive signal is a signal transmitted when one or more burners are driven in the cooking cooker 30. Further, the drive signal includes an operating air volume (“weak”, “medium”, or “strong”) during the ventilation operation specified by the operating air volume specifying process (FIG. 8) described later. When the drive signal is received from the heating cooker 30, the ventilation control unit 20 determines YES in S60, and the process proceeds to S62. In S62, the ventilation control unit 20 drives the motor 14. The ventilation control unit 20 specifies the supply voltage to be supplied to the motor 14 by using the operating air volume included in the drive signal received in S60 and the first operation table 24, and supplies the specified supply voltage to the motor 14. As a result, the motor 14 and the fan 12 are driven.

On the other hand, when the drive signal is not received from the heating cooker 30, the ventilation control unit 20 determines NO in S60, and the process proceeds to S64. In S64, the ventilation control unit 20 determines whether or not a non-drive signal has been received from the cooking cooker 30. The non-driving signal is a signal transmitted when one or more burners are driven in the cooking cooker 30 and then all the burners are stopped. When the non-driving signal is received from the heating cooker 30, the ventilation control unit 20 determines YES in S64, and the process proceeds to S66. In S66, the ventilation control unit 20 stops driving the motor 14. When S66 ends, the process of FIG. 7 ends. On the other hand, when the non-drive signal is not received from the heating cooker 30, the ventilation control unit 20 determines NO in S64, and the process returns to S60.

In S70, the ventilation control unit 20 determines whether or not the fan rotation speed exceeds the first determination rotation speed. As the first determination rotation speed, the rotation speed corresponding to the operating air volume included in the drive signal received in S60 is used. For example, when the operating air volume "strong" is received in S60, the first determination rotation speed is 1400 [rpm]. When the fan rotation speed exceeds the first determination rotation, the ventilation control unit 20 determines YES in S70, and the process proceeds to S72. When the fan rotation speed exceeds the first determination rotation speed, when a relatively large amount of oil is attached to the fan 12, a relatively large amount of oil or dirt is attached to the filter 86. If so, there is a case where a relatively large amount of dust or oil is attached to the exhaust port 82. In such a situation, the amount of air exhausted from the room 90 to the outside by the fan 12 is smaller than the amount of air exhausted from the room 90 to the outside by the fan 12 in the test run process.

In S72, the ventilation control unit 20 counts up a timer for measuring the time determined to be YES in S70. When S72 is completed, the process proceeds to S80.

On the other hand, when the fan rotation speed is equal to or less than the first determination rotation speed, the ventilation control unit 20 determines NO in S70, and the process proceeds to S74. In S74, the ventilation control unit 20 resets the timer. When S74 ends, the process proceeds to S82.

In S80, the ventilation control unit 20 determines whether or not the timer exceeds the second predetermined time (for example, 30 seconds). If the timer is less than the second predetermined time, the ventilation control unit 20 determines NO in S80, and the process proceeds to S82.

In S82, the ventilation control unit 20 determines whether or not the drive signal has been received from the cooking cooker 30. When the drive signal is received from the heating cooker 30, the ventilation control unit 20 determines YES in S82, and the process returns to S62.

On the other hand, when the drive signal is not received from the heating cooker 30, the ventilation control unit 20 determines NO in S82, and the process proceeds to S84. In S84, the ventilation control unit 20 determines whether or not a non-drive signal has been received from the cooking cooker 30. When the non-driving signal is received from the heating cooker 30, the ventilation control unit 20 determines YES in S84, and the process proceeds to S86. In S86, the ventilation control unit 20 stops driving the motor 14. When S86 ends, the process of FIG. 7 ends. On the other hand, when the non-drive signal is not received from the heating cooker 30, the ventilation control unit 20 determines NO in S84, and the process returns to S70.

Further, in S80, when the timer exceeds the second predetermined time, the ventilation control unit 20 determines YES in S80, and the process proceeds to S90. In S90, the ventilation control unit 20 increases the supply voltage to the motor 14 by 10 [V]. For example, the ventilation control unit 20 changes the supply voltage to 80 [V] when the current supply voltage is 70 [V]. Further, the ventilation control unit 20 increases the supply voltage in the first operation table 24 by 10 [V]. Specifically, the ventilation control unit 20 changes the supply voltages of the operating air volumes “strong”, “medium”, and “weak” to 80 [V], 60 [V], and 40 [V], respectively.

In S92, the ventilation control unit 20 uses the buzzer 19 to notify the user that the supply voltage to the motor 14 has been increased by 10 [V]. Note that the notification to the user that the supply voltage to the motor 14 has been increased by 10 [V] may be executed by using the display unit of the range hood 10, voice (not shown), or the like.

In S94, the ventilation control unit 20 transmits the fan rotation speed and the operating air volume when it is determined to be YES in S80 to the management server 200. The management server 200 stores the fan rotation speed in the memory 212.

In S96, the ventilation control unit 20 determines whether or not the drive signal has been received from the cooking cooker 30. When the drive signal is received from the heating cooker 30, the ventilation control unit 20 determines YES in S96, and the process proceeds to S98. In S98, the ventilation control unit 20 specifies the supply voltage to be supplied to the motor 14 by using the operating air volume included in the drive signal received in S96 and the changed first operation table 24, and determines the specified supply voltage. It is supplied to the motor 14.

On the other hand, when the drive signal is not received from the heating cooker 30, the ventilation control unit 20 determines NO in S96, and the process proceeds to S100. In S100, the ventilation control unit 20 determines whether or not a non-drive signal has been received from the cooking cooker 30. When the non-driving signal is received from the heating cooker 30, the ventilation control unit 20 determines YES in S100, and the process proceeds to S102. In S102, the ventilation control unit 20 stops driving the motor 14. When S102 ends, the process of FIG. 7 ends. Since the supply voltage in the first operation table 24 is increased by 10 [V] in the ventilation control unit 20, the supply voltage in the first operation table 24 is initially in the initial state when the automatic ventilation operation process is terminated. Return to. That is, the supply voltage in the first operation table 24 is subtracted by 10 [V]. In the modified example, the ventilation control unit 20 is configured to end the automatic ventilation operation process when the elapsed time from receiving the non-drive signal exceeds the third predetermined time (for example, 3 minutes). You may.

On the other hand, when the non-drive signal is not received from the heating cooker 30, the ventilation control unit 20 determines NO in S100, and the process returns to S96.

(Operating air volume identification process; Fig. 8)
Subsequently, with reference to FIG. 8, the operation air volume specifying process executed by the heating control unit 60 of the cooking device 30 is specified. The heating control unit 60 starts the operation air volume specifying process when the ignition operation is executed by the user on the stove operation unit 48 or the grill operation unit 50 while the power of the cooking cooker 30 is turned on.

In S110, the heating control unit 60 uses the first air volume table 64 to specify the operating air volume. For example, when the stove burners 38a and 38b are being driven, the heating control unit 60 specifies the operating air volume as "medium".

In S112, the heating control unit 60 transmits a drive signal including the operating air volume specified in S110 to the range hood 10.

In S114, the heating control unit 60 determines whether or not the driving of all the burners is stopped. When all the burners are stopped, the heating control unit 60 determines YES in S114, and the process proceeds to S116. In S116, the heating control unit 60 transmits a non-drive signal to the range hood 10. When S116 ends, the process of FIG. 8 ends. On the other hand, when one or more burners are driven, the heating control unit 60 determines NO in S114, and the process returns to S110.

(Abnormality determination processing of range hood 10)
Subsequently, the abnormality determination process of the range hood 10 executed by the server control unit 210 of the management server 200 will be described. The abnormality determination process of the range hood 10 is performed on the range hood 10 by using the initial rotation speed transmitted from the range hood 10 in S40 of FIG. 6 and the fan rotation speed transmitted from the range hood 10 in S94 of FIG. This is a process for determining whether or not an abnormality has occurred.

When the server control unit 210 receives the initial rotation speed of each operating air volume from the range hood 10 (S40 in FIG. 6), the server control unit 210 stores the initial rotation speed of each operating air volume in the memory 212. Then, when the server control unit 210 receives the operating air volume and the fan rotation speed from the range hood 10 (S94 in FIG. 7), the server control unit 210 compares the initial rotation speed of the operating air volume with the fan rotation speed received this time, and compares the range hood. It is determined whether or not an abnormality has occurred in 10. In this embodiment, in the server control unit 210, the rotation speed difference obtained by subtracting the fan rotation speed received this time from the initial rotation speed stored in the memory 212 is the second determination rotation speed (for example, −150 [rpm]). If it is less than, it is determined that an abnormality has occurred in the range hood 10. When the server control unit 210 determines that an abnormality has occurred in the range hood 10, the server control unit 210 informs the user of the range hood 10 that the abnormality has occurred in the range hood 10 by using an e-mail or the like. In the modified example, when the server control unit 210 receives the operating air volume and the fan rotation speed from the range hood 10, the server control unit 210 stores the operating air volume, the fan rotation speed, and the reception date and time in the memory 212 in association with each other. Then, the server control unit 210 determines that an abnormality has occurred in the range hood 10 when the state in which the rotation speed difference is less than the second determination rotation speed continues for a predetermined period (for example, one week) or more. You may.

(Specific case; Fig. 9)
Subsequently, with reference to FIG. 9, a specific case executed by the processes of FIGS. 7 and 8 will be described. FIG. 9 assumes a situation in which the first operation table 24 is in the state of FIG. Further, it is assumed that a relatively large amount of dust or oil is attached to the exhaust port 82.

At T10, when the user executes an operation for initiating the automatic ventilation operation process in the ventilation operation unit 16, the range hood 10 starts the automatic ventilation operation process. Since the range hood 10 does not receive the drive signal and the non-drive signal from the cooking cooker 30 (NO in S60 and S64 in FIG. 7), the range hood 10 does not drive the motor 14.

At T20, when the ignition operation is executed by the user on the stove operation units 48a and 48b, the cooking cooker 30 ignites the stove burners 38a and 38b at T22 and starts the operation air volume specifying process. Then, the cooking cooker 30 determines that the stove burners 38a and 38b are being driven, specifies the operating air volume as "medium" (S110 in FIG. 8), and in T24, a drive signal including the operating air volume "medium". Is transmitted to the range hood 10 (S112 in FIG. 8).

When the range hood 10 receives a drive signal including the operating air volume "medium" from the heating cooker 30 at T24 (YES in S60 in FIG. 7), the range hood 10 supplies the operating air volume "medium" at T30 (50 [V]]. ) Is supplied to the motor 14 to drive the motor 14 (S62 in FIG. 7). In this case, a relatively large amount of dust or oil is attached to the exhaust port 82. Therefore, the load acting on the motor 14 is smaller than the load acting on the motor 14 when dust or oil does not adhere to the exhaust port 82. Therefore, the fan rotation speed becomes larger than the initial rotation speed (1300 [rpm]). In this case, it is assumed that the fan rotation speed is 1420 [rpm]. In such a situation, the amount of air exhausted from the room 90 to the outside by the fan 12 is smaller than the amount of air exhausted from the room 90 to the outside by the fan 12 during the test run process. The range hood 10 determines that the fan rotation speed exceeds the first determination rotation speed (1400 [rpm]) (NO in S70 in FIG. 7), and counts up the timer (S72 in FIG. 7).

When the timer becomes larger than the second predetermined time (YES in S80 in FIG. 7), the range hood 10 changes the supply voltage to the motor 14 from 50 [V] to 60 [V] in T40 (FIG. 7). S90). As a result, the fan rotation speed increases, and the air volume of the air exhausted from the room 90 to the outside by the fan 12 increases. Therefore, the amount of air exhausted from the room 90 to the outside by the fan 12 can be made the same as the amount of air exhausted from the room 90 to the outside by the fan 12 during the test run process.

The range hood 10 increased the supply voltage in the first operation table 24 by 10 [V] at T42, operated the buzzer 19 at T44, and increased the supply voltage to the motor 14 by 10 [V]. Notify the user (S92 in FIG. 7). Further, although not shown, the range hood 10 transmits the fan rotation speed (1420 [rpm]) when the motor 14 is driven at a supply voltage of 50 [V] to the management server 200 (FIG. 7). S94).

When the user performs a fire extinguishing operation on the stove operation unit 48b at T50, the cooking cooker 30 extinguishes the stove burner 38b at T52. Then, the cooking cooker 30 identifies the operating air volume as "weak" (S110 in FIG. 8), and at T54, transmits a drive signal including the operating air volume "weak" to the range hood 10 (S112 in FIG. 8).

When the range hood 10 receives a drive signal including the operating air volume "weak" from the range hood 10 at T54 (YES in S96 in FIG. 7), the range hood 10 changes the supply voltage to the motor 14 from 60 [V] to 40 [at T60]. V] (S98 in FIG. 7).

When the user performs a fire extinguishing operation on the stove operation unit 48a in the T70, the cooking cooker 30 extinguishes the stove burner 38a in the T72. Then, the cooking cooker 30 determines that the driving of all the burners is stopped (YES in S114 of FIG. 8), and at T74, transmits a non-driving signal to the range hood 10 (S116 of FIG. 8). The operation air volume specification process is completed.

When the range hood 10 receives a non-drive signal from the range hood 10 in T74 (YES in S100 in FIG. 7), the range hood 10 stops driving the motor 14 in T80 (S102 in FIG. 7), and ends the automatic ventilation operation process. do.

As described above, when the fan rotation speed exceeds the first determination rotation speed (YES in S70 in FIG. 7), the range hood 10 increases the supply voltage to the motor 14 by 10 [V] (FIG. 7). S90). As a result, the amount of air exhausted from the room 90 to the outside by the fan 12 increases. Therefore, even if the air volume of the air exhausted from the room 90 to the outside by the fan 12 is smaller than the air volume exhausted from the room 90 to the outside by the fan 12 in the test run process, it is determined to be YES in S70 of FIG. And, the range hood 10 can sufficiently ventilate the air in the room 90.

Further, when the fan rotation speed exceeds the first determination rotation speed (YES in S70 of FIG. 7), the range hood 10 uses the buzzer 19 to increase the supply voltage to the motor 14 by 10 [V]. Notify the user of the fact (S92 in FIG. 7). Therefore, the user can know that the actual air volume of the air exhausted from the room 90 to the outside by the fan 12 is less than the air volume exhausted from the room 90 to the outside by the fan 12 in the test run process. .. As a result, the user can check the state of the range hood 10 and perform necessary maintenance.

Further, the memory 212 of the management server 200 stores the initial rotation speed specified in the test run process. The range hood 10 during the test run process is likely to be normal. Therefore, the management server 200 uses the initial rotation speed in the memory 212 and the fan rotation speed received while the range hood 10 is executing the automatic ventilation operation process, so that an abnormality occurs in the range hood 10. It is possible to appropriately judge whether or not it is present.

(Correspondence)
The range hood 10 and the management server 200 are examples of the "ventilation device" and the "external server". The ventilation control unit 20 and the heat control unit 60 are examples of "control means". The operating air volume is an example of "ventilation air volume". The supply voltage in the first operation table 24 before being changed in S90 of FIG. 7 and the supply voltage in the first operation table 24 after being changed in S90 of FIG. 7 are the "first command value" and ". This is an example of "second command value". The buzzer 19 is an example of the "notifying unit". The memory 212 is an example of the “memory” of the “external server”.

(Second Example)
In the second embodiment, the ventilation control unit 20 of the range hood 10 executes the process of FIG. 10 instead of the process of FIG. 7. Further, the heating control unit 60 of the cooking apparatus 30 executes the processing of FIG. 11 instead of the processing of FIG. The processes common to the embodiments are given the same step numbers and the description thereof will be omitted.

(Automatic ventilation operation processing; Fig. 10)
The automatic ventilation operation process of this embodiment will be described with reference to FIG.

When the ventilation control unit 20 determines that the timer has exceeded the second predetermined time (YES in S80), the ventilation control unit 20 transmits a heating amount limiting signal to the cooking device 30 in S290. The heating amount limiting signal is a signal for requesting that the heating amount of the cooking device 30 be limited. Then, in S94, the ventilation control unit 20 transmits the fan rotation speed when it is determined to be YES in S80 to the management server 200. Subsequent steps S96 to S102 are the same as the processes executed in the first embodiment, except that the supply voltage in the first operation table 24 has not been changed.

(Operating air volume identification process; Fig. 11)
The operating air volume specifying process of this embodiment will be described with reference to FIG.

When S112 is completed, the heating control unit 60 determines whether or not all the burners are stopped in S320. When the driving of all the burners is stopped, the heating control unit 60 determines YES in S320, and the process proceeds to S334. On the other hand, when one or more burners are driven, the heating control unit 60 determines NO in S320, and the process proceeds to S322.

In S322, the heating control unit 60 determines whether or not the heating amount limiting signal has been received from the range hood 10. When the heating amount limiting signal is not received from the range hood 10, the heating control unit 60 determines NO in S322, and the process returns to S110. On the other hand, when the heating amount limiting signal is received from the range hood 10, the heating control unit 60 determines YES in S322, and the process proceeds to S324.

In S324, the heating control unit 60 determines whether or not two or more stove burners are being driven. When two or more stove burners are driven, the heating control unit 60 determines YES in S324, and the process proceeds to S326. In S326, the heating control unit 60 stops the driving of one of the two or more stove burners being driven. The order of priority for reducing the drive of the stove burner is the stove burner 38c, the stove burner 38b, and the stove burner 38a.

On the other hand, when two or more stoves are not driven, the heating control unit 60 determines NO in S324, and the process proceeds to S328. When two or more stove burners are not driven, one stove burner is driven, one stove burner and grill burner 40a are driven, or the grill burner 40a is driven. If you are. In S328, the heating control unit 60 reduces the heating amount of the burner being driven. When one stove burner and the grill burner 40a are driven, the heating control unit 60 may reduce the heating amount of one burner or may reduce the heating amount of both burners.

In S330, the heating control unit 60 notifies the user that the heating amount of the cooking device 30 is limited by using a buzzer (not shown) or the like. Note that the user may be notified that the heating amount of the cooking device 30 has been limited by using the display unit of the cooking device 30, voice (not shown), or the like. In the modified example, the ventilation control unit 20 may use the buzzer 19 or the like to notify the user that the heating amount of the cooking device 30 is limited. In this case, the ventilation control unit 20 operates the buzzer 19 after S290 in FIG.

In S332, the heating control unit 60 monitors that the driving of all the burners is stopped. When the driving of all the burners is stopped, the heating control unit 60 determines YES in S332, and the process proceeds to S334.

In S334, the heating control unit 60 transmits a non-drive signal to the range hood 10. When S334 ends, the process of FIG. 11 ends.

(Specific case; Fig. 12)
Subsequently, with reference to FIG. 12, a specific case executed by the processes of FIGS. 10 and 11 will be described. The initial state of FIG. 11 is the same as the initial state of FIG. The same reference numerals are given to the processes common to those in FIG. 9, and the description thereof will be omitted.

When the timer becomes larger than the second predetermined time (YES in S80 in FIG. 10), the range hood 10 transmits a heating amount limiting signal to the cooking cooker 30 at T240 (S290 in FIG. 10).

When the cooking cooker 30 receives the heating amount limiting signal from the cooking cooker 30 in T240 (YES in S322 of FIG. 11), the cooking cooker 30 determines that the stove burners 38a and 38 are being driven (YES in S324 of FIG. 11). ), T242, extinguish the stove burner 38b (S326 in FIG. 11). Then, the cooking cooker 30 operates a buzzer at T244 to notify the user that the heating amount of the cooking cooker 30 is limited (S330 in FIG. 11).

As described above, when the fan rotation speed exceeds the first determination rotation speed (YES in S70 in FIG. 10), the range hood 10 transmits a heating amount limiting signal to the cooking cooker 30. When the heating cooker 30 receives the heating amount limiting signal from the range hood 10 (YES in S322 of FIG. 11), the heating cooker 30 limits the heating amount of the burner in operation (S326, S328 in FIG. 11). This limits the amount of air that must be exhausted from the room 90 to the outside by the fan 12. Therefore, even if the air volume of the air exhausted from the room 90 to the outside by the fan 12 is smaller than the air volume exhausted from the room 90 to the outside by the fan 12 in the test run process, it is determined to be YES in S70 of FIG. And, the range hood 10 can sufficiently ventilate the air in the room 90.

Further, when the heating cooker 30 receives a heating amount limiting signal from the range hood 10 in a state where two or more stove burners 38 are operating (YES in S322 of FIG. 11), the heating cooker 30 of the operating stove burner 38. The drive of one of the stove burners 38 is stopped. As a result, the amount of air that must be exhausted from the room 90 to the outside by the fan 12 is reduced. Therefore, even if the air volume of the air exhausted from the room 90 to the outside by the fan 12 is smaller than the air volume exhausted from the room 90 to the outside by the fan 12 in the test run process, it is determined to be YES in S70 of FIG. And, the range hood 10 can sufficiently ventilate the air in the room 90.

(Third Example)
As shown in FIG. 1, the equipment system 4 further includes an alarm device 100. Further, the memory 22 of the ventilation control unit 20 stores the second operation table 324 instead of the first operation table 24, and the memory 62 of the heating control unit 60 replaces the first air volume table 64. , The second air volume table 364 is stored. Further, the ventilation control unit 20 executes the process of FIG. 15 instead of the process of FIG. 7, and the heating control unit 60 of the cooking cooker 30 executes the process of FIG. 16 instead of the process of FIG. The server control unit 210 of the management server 200 executes the abnormality determination process (FIG. 18) of the cooking cooker 30 instead of the abnormality determination process of the range hood 10. The processes common to the embodiments are given the same step numbers and the description thereof will be omitted.

(Configuration of alarm device 100)
The alarm device 100 is a device for notifying the surroundings of an abnormality in the carbon monoxide (CO) concentration in the room 90. The alarm device 100 includes a buzzer 102, a carbon monoxide concentration detection sensor 104 (hereinafter referred to as “CO sensor 104”), and an alarm control unit 110. The alarm control unit 110 controls the operation of the alarm device 100 according to a program (not shown) stored in a memory (not shown).

(Second operation table 324; FIG. 13)
The second operation table 324 will be described with reference to FIG. In the second operation table 324, the operation mode and the supply voltage are associated with each other.

(Second air volume table 364; FIG. 14)
The second air volume table 364 will be described with reference to FIG. In the second air volume table 364, the driving state of each burner, the operating air volume, and the heating amount are associated with each other.

(Automatic ventilation operation processing; Fig. 15)
The automatic ventilation operation process of this embodiment will be described with reference to FIG.

When the motor 14 is driven (S62), the ventilation control unit 20 of the range hood 10 determines whether or not the operating air volume increase signal is received from the alarm device 100 in S470. The operating air volume increase signal is a signal for requesting that the operating air volume of the range hood 10 be increased. When the operating air volume increase signal is received from the alarm device 100, the ventilation control unit 20 determines YES in S470, and the process proceeds to S90. Subsequent S90 to S102 are the same as the processes executed in the first embodiment, except that the process of S94 is not executed.

On the other hand, when the operation air volume increase signal is not received from the alarm device 100, the ventilation control unit 20 determines NO in S470, and the process returns to S60.

(Operating air volume identification process; Fig. 16)
The operating air volume specifying process of this embodiment will be described with reference to FIG.

When the heating control unit 60 of the heating cooker 30 transmits a drive signal to the range hood 10 (S112), the heating amount is specified in S510 by using the second air volume table 364. For example, when the stove burners 38a and 38b are being driven, the heating control unit 60 specifies the heating amount as "medium".

In S512, the heating control unit 60 transmits a heating signal including the heating amount specified in S510 to the alarm device 100.

Further, when the non-drive signal is transmitted to the range hood 10 (S116), the heating control unit 60 transmits the non-drive signal to the alarm device 100 in S518. When S518 ends, the process of FIG. 16 ends.

(CO detection processing; FIG. 17)
Subsequently, with reference to FIG. 17, the CO detection process executed by the alarm control unit 110 of the alarm device 100 will be described. The alarm control unit 110 starts the CO detection process when the heating signal is received from the cooking cooker 30 while the power of the alarm device 100 is turned on.

In S610, the alarm control unit 110 determines whether or not the CO concentration detected by the CO sensor 104 exceeds a predetermined concentration. If the CO concentration exceeds a predetermined concentration, the alarm control unit 110 determines YES in S610, and the process proceeds to S612.

The alarm control unit 110 operates the buzzer 102 in S612 to notify the user that the CO concentration has exceeded a predetermined concentration, and in S614, transmits an operating air volume increase signal to the range hood 10.

In S616, the alarm control unit 110 transmits the concentration information including the CO concentration determined to be YES in S610 and the heating amount of the cooking cooker 30 when it is determined to be YES in S610 to the management server 200. When S616 is completed, the process of FIG. 17 is completed.

On the other hand, when the CO concentration is equal to or lower than the predetermined concentration, the alarm control unit 110 determines NO in S610, and the process proceeds to S620. In S620, the alarm control unit 110 determines whether or not the non-drive signal has been received from the range hood 10. When the non-drive signal is not received from the heating cooker 30, the alarm control unit 110 determines NO in S620, and the process returns to S610. On the other hand, when the non-drive signal is received from the heating cooker 30, the alarm control unit 110 determines YES in S620, and the process proceeds to S616. In S616 after the determination in S620 is YES, the alarm control unit 110 transmits the concentration information including the heating amount and the CO concentration to the management server 200. The CO concentration in this case is the maximum CO concentration detected by the CO sensor 104 from the start of the process of FIG. 17 to the reception of the non-drive signal. The heating amount is the heating amount of the cooking device 30 when the maximum CO concentration is detected. In the modified example, the heating amount may include a plurality of heating amounts. In this case, the CO concentration includes the maximum CO concentration for each of the plurality of heating amounts.

(Abnormality determination process of the cooking device 30; FIG. 18)
Subsequently, with reference to FIG. 18, the abnormality determination process of the cooking cooker 30 executed by the server control unit 210 of the management server 200 will be described. When the server control unit 210 receives the concentration information from the alarm device 100, the server control unit 210 starts the abnormality determination process.

In S710, the server control unit 210 specifies the heating amount included in the concentration information. Further, the server control unit 210 stores the density information in the memory 212.

In S712, the server control unit 210 determines whether or not the determination concentration corresponding to the heating amount specified in S710 (hereinafter referred to as “specific heating amount”) is stored in the memory 212. If the determination concentration corresponding to the specific heating amount is not stored in the memory 212, the server control unit 210 determines NO in S712, and the process proceeds to S714. The case where NO is determined in S712 is a case where the concentration information including the same heating amount as the specific heating amount has never been received from the alarm device 100.

In S714, the server control unit 210 specifies the determination concentration corresponding to the specific heating amount. Specifically, the server control unit 210 calculates the concentration obtained by adding a predetermined concentration range to the CO concentration in the concentration information as the determination concentration. Then, the server control unit 210 stores the calculated determination density in the memory 212. The determination concentration is a concentration lower than the predetermined concentration in FIG.

On the other hand, when the determination concentration corresponding to the specific heating amount is stored in the memory 212, the server control unit 210 determines YES in S712, and the process proceeds to S720. In S720, the server control unit 210 determines whether or not the CO concentration in the concentration information exceeds the determination concentration. When the CO concentration is equal to or lower than the determination concentration, the server control unit 210 determines NO in S720 and ends the process of FIG.

On the other hand, when the CO concentration exceeds the determination concentration, the server control unit 210 determines YES in S720, and the process proceeds to S722. In S722, the server control unit 210 determines that an abnormality has occurred in the cooking cooker 30, and the user of the cooking cooker 30 has an abnormality in the cooking cooker 30 by using an e-mail or the like. Notify that. When S722 ends, the process of FIG. 18 ends.

(Specific case; Fig. 19)
Subsequently, with reference to FIG. 19, a specific case executed by the processes of FIGS. 15 to 18 will be described. FIG. 19 assumes a situation in which an abnormality occurs in the stove burner 38a while the stove burners 38a and 38b are being driven. The same reference numerals are given to the processes common to those in FIGS. 9 and 12, and the description thereof will be omitted.

When the stove burners 38a and 38b are ignited in T22, the cooking cooker 30 determines that the stove burners 38a and 38b are being driven, specifies the heating amount as "medium" (S510 in FIG. 16), and T326. In, a heating signal including the heating amount "medium" is transmitted to the alarm device 100 (S512 in FIG. 16).

When the alarm device 100 receives a heating signal from the cooking device 30 at T326, the alarm device 100 starts the CO detection process (FIG. 17). Then, the alarm device 100 determines that the CO concentration is equal to or lower than the predetermined concentration (NO in S610 of FIG. 17), and determines that the non-drive signal is not received from the cooking cooker 30 (NO in S620 of FIG. 17). ), Continue the CO detection process.

At time t1, an abnormality occurs in the stove burner 38a. In this case, it is assumed that the amount of air supplied to the stove burner 38a decreases. In this case, the CO concentration detected by the CO sensor 104 increases.

The alarm device 100 determines that the CO concentration exceeds the predetermined concentration at time t2 (YES in S610 in FIG. 17), operates the buzzer 102 at T336, and indicates that the CO concentration exceeds the predetermined concentration. (S612 in FIG. 17). Then, the alarm device 100 transmits an operating air volume increase signal to the range hood 10 at T338 (S614 in FIG. 17). Further, although not shown, the alarm device 100 transmits concentration information including the heating amount “medium” and the CO concentration at the time t2 to the management server 200 (S616 in FIG. 17).

When the user performs a fire extinguishing operation on the stove operation units 48a and 48b in the T350, the cooking cooker 30 extinguishes the stove burners 38a and 38b in the T352. Then, the cooking cooker 30 determines that the driving of all the burners is stopped (YES in S114 of FIG. 16), and at T354, transmits a non-driving signal to the range hood 10 (S116 of FIG. 16). At T356, a non-drive signal is transmitted to the alarm device 100.

When the range hood 10 receives a non-drive signal from the range hood 10 in T354 (YES in S100 in FIG. 15), the range hood 10 stops driving the motor 14 in T360 (S102 in FIG. 15), and ends the automatic ventilation operation process. do.

As described above, when the CO concentration detected by the CO sensor 104 exceeds the predetermined concentration (YES in S610 in FIG. 17), the range hood 10 receives the operating air volume increase signal from the alarm device 100 (FIG. 17). YES in S470 of 15), the supply voltage to the motor 14 is increased by 10 [V] (S90 in FIG. 15). As a result, the amount of air exhausted from the room 90 to the outside by the fan 12 increases. Therefore, even if an abnormality occurs in the cooking cooker 30 and the amount of air that must be exhausted from the room 90 to the outside by the fan 12 increases, the range hood 10 can sufficiently ventilate the air in the room 90. can.

Further, when the CO concentration exceeds the predetermined concentration (YES in S610 in FIG. 17), the alarm 100 uses the buzzer 102 to notify the user that the CO concentration exceeds the predetermined concentration (FIG. 17). 17 S612). Therefore, the user can know that some abnormality has occurred in the cooking device 30. As a result, the user can check the state of the cooking device 30 and perform necessary maintenance.

Further, the memory 212 of the management server 200 stores the determination density specified based on the density information first transmitted from the alarm device 100 to the management server 200 (S714 in FIG. 18). In this state, the cooker 30 is likely to be normal. Therefore, the management server 200 uses the determination concentration in the memory 212 and the concentration information (specifically, the CO concentration) received while the cooking cooker 30 is executing the operation air volume specifying process (FIG. 18). In S720), it can be appropriately determined whether or not an abnormality has occurred in the cooking device 30.

(Correspondence)
The ventilation control unit 20, the heating control unit 60, and the alarm control unit 110 are examples of "control means". The supply voltage in the first operation table 24 before being changed in S90 of FIG. 15 and the supply voltage in the first operation table 24 after being changed in S90 of FIG. 15 are the "first command value" and ". This is an example of "second command value". The CO sensor 104 and the buzzer 102 are examples of a "gas detecting means" and a "notifying unit", respectively. The concentration information and the determination concentration are examples of "heating information" and "initial information", respectively.

Although each embodiment has been described in detail above, these are merely examples and do not limit the scope of claims. The techniques described in the claims include various modifications and modifications of the specific examples exemplified above.

(First modification) The ventilation system 2 may include a differential pressure sensor that detects a pressure difference, which is a pressure difference between the upstream side and the downstream side of the exhaust duct 80. In this case, in the test run process of FIG. 6, the range hood 10 stores the pressure difference as the initial pressure difference in the memory 22 instead of the initial rotation speed. Further, the range hood 10 stores the pressure difference obtained by adding a predetermined pressure to the initial pressure difference as a determination pressure in the memory 22. The range hood 10 increases the supply voltage to the motor 14 by 10 [V] when the pressure difference detected by the pressure sensor exceeds the determination pressure in the automatic ventilation operation process of FIG. 7. In this modification, the exhaust duct 80 is an example of the "exhaust path".

(Second Modified Example) In the above embodiment, the cooking cooker 30 specifies the operating air volume. Instead of this configuration, the range hood 10 may specify the operating air volume. In this modification, the first air volume table 64 is stored in the memory 22. Then, when the cooking cooker 30 receives the start signal from the range hood 10, it transmits drive information including the drive state of each burner to the range hood 10. When the range hood 10 receives the drive information from the heating cooker 30, the range hood 10 specifies the operating air volume by using the drive information and the first air volume table 64.

(Third Modification Example) The initial rotation speed, the first determination rotation speed, and the second determination rotation speed in the first operation table 24 may be stored in advance. In this case, the ventilation control unit 20 does not have to execute the test run process.

(Fourth Modification Example) The ventilation control unit 20 may specify a load acting on the motor 14 by using a voltage, a current, or the like supplied to the motor 14. Then, does the ventilation control unit 20 utilize the load so that the amount of air exhausted from the room 90 to the outside by the fan 12 is smaller than the amount of air exhausted from the room 90 to the outside by the fan 12 in the test run process? You may decide whether or not.

(Fifth Modification Example) In the first air volume table 64 of FIG. 5, the operating air volume is associated with each burner according to the driving state (that is, driving or stopping). Instead of this, the operating air volume may be associated with the actual heating amount of each burner.

(6th Modification Example) When the heating control unit 60 of the heating cooker 30 receives the start signal from the range hood 10, the operating air volume specifying process of FIG. 8, FIG. 11 or FIG. 16 is started, and the range hood When the end signal is received from 10, the operation air volume specifying process may be terminated. In this modification, the ventilation control unit 20 of the range hood 10 transmits a start signal to the heating cooker 30 when the operation for starting the automatic ventilation operation process is executed by the user to the ventilation operation unit 16. Further, the ventilation control unit 20 transmits an end signal to the heating cooker 30 when the operation for terminating the automatic ventilation operation process is executed by the user to the ventilation operation unit 16.

(7th Modified Example) In S290 of the automatic ventilation operation process of FIG. 10, the ventilation control unit 20 of the range hood 10 includes information indicating that the timer has exceeded the second predetermined time instead of the heating amount limiting signal. The excess signal may be transmitted to the cooker 30. In this modification, the heating control unit 60 of the heating cooker 30 executes the processes after S324 in FIG. 11 when the excess signal is received from the range hood 10.

(Eighth Modification Example) The ventilation control unit 20 of the range hood 10 may execute the abnormality determination process of the range hood 10. In this modification, the ventilation control unit 20 utilizes the initial rotation speed stored in the first operation table 24 of the memory 22 in the trial run processing and the fan rotation speed during the automatic ventilation operation processing, and the range hood 10 Judge whether or not an abnormality has occurred in. The ventilation control unit 20 has an abnormality in the range hood 10 when the rotation speed difference obtained by subtracting the initial rotation speed in the first operation table 24 from the fan rotation speed this time is less than the second determination rotation speed. Judge. In this modification, "external server" can be omitted.

(9th Modified Example) In the third embodiment, the range hood 10 or the cooking device 30 may include the CO sensor 104.

(10th modification) The heating control unit 60 of the cooking device 30 may execute the abnormality determination process of the cooking device 30. In this modification, the heating control unit 60 receives the concentration information from the alarm device 100 in response to transmitting the non-drive signal to the alarm device 100. The heating control unit 60 calculates the determination concentration using the CO concentration in the concentration information and stores it in the memory 62. After that, the heating control unit 60 determines whether or not an abnormality has occurred in the cooking device 30 by using the determination concentration in the memory 62 and the CO concentration in the concentration information transmitted from the alarm device 100. .. When the CO concentration in the concentration information exceeds the determination concentration, the heating control unit 60 determines that an abnormality has occurred in the cooking device 30. In this modification, "external server" can be omitted.

(Eleventh modification) The cooking cooker 30 may be an electromagnetic induction heating cooker (IH cooker).

(12th Modified Example) In the automatic ventilation operation process of FIG. 7, the process may return to S60 after S94 is completed. In this modification, the ventilation control unit 20 executes the process of S90 every time the determination is YES in S70 and S80. That is, the process (S90) of increasing the supply voltage to the motor 14 by 10 [V] can be executed twice or more.

(13th Deformation Example) In the operation air volume specifying process of FIG. 11, the heating control unit 60 exceeds, for example, the fourth predetermined time after executing S330 at the same time as monitoring S332. You may monitor whether or not it is. Then, if the elapsed time from the execution of S330 exceeds the fourth predetermined time without being determined to be YES in S332, the process may return to S324. In this modification, for example, when the heating control unit 60 receives the heating amount limiting signal from the range hood 10 while the three stove burners 38a, 38b, and 38c are being driven (YES in S324), the heating control unit 60 receives the heating amount limiting signal from the range hood 10. The drive of the stove burner 38c is stopped. Then, when the elapsed time from the time when the heating control unit 60 further stops the driving of the stove burner 38c and executes the notification (S330) exceeds the fourth predetermined time, the heating control unit 60 determines YES in S324 and determines that the stove burner is YES. The drive of 38b is stopped. That is, in this modification, the processes of S326 and S328 can be executed twice or more.

(14th Modification Example) The processes of S512 and S518 of FIG. 16 and S614, S616 and S620 of FIG. 17 may be omitted. In this modification, the CO detection process is a process that is started when the power of the alarm device 100 is turned on, and is a process that is continuously executed until the power of the alarm device 100 is turned off. .. Further, the alarm device 100 is configured to transmit the CO concentration detected by the CO sensor 104 to the cooking cooker 30 at predetermined cycles (for example, every second). Then, each time the heating control unit 60 of the heating cooker 30 determines NO in S114, it determines whether or not the CO concentration received from the alarm device 100 exceeds the predetermined concentration. When the heating control unit 60 determines that the CO concentration exceeds the predetermined concentration, the heating control unit 60 transmits an operating air volume increase signal to the range hood 10, and determines that the CO concentration exceeds the predetermined concentration. Information including the heating amount is transmitted to the management server 200. Further, in another modification, the processes of S512 and S518 of FIG. 16 and S614, S616 and S620 of FIG. 17 may be omitted, and the processes executed in S470 of FIG. 15 may be different. In this modification, the alarm 100 is configured to transmit the CO concentration detected by the CO sensor 104 to the range hood 10 at predetermined cycles (for example, every second). In this case, the ventilation control unit 20 of the range hood 10 determines in S470 of FIG. 15 whether or not the CO concentration received from the alarm device 100 exceeds a predetermined concentration. Then, when the ventilation control unit 20 determines that the CO concentration exceeds the predetermined concentration, the processing of S90 is executed, and the CO concentration and the heating amount when the CO concentration is determined to exceed the predetermined concentration are used. Information including the above is transmitted to the management server 200.

The technical elements described herein or in the drawings exhibit their technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the techniques exemplified in the present specification or the drawings can achieve a plurality of purposes at the same time, and achieving one of the purposes itself has technical usefulness.

2: Ventilation system 4: Equipment system 6: Wireless LAN router 8: Internet 10: Range hood 12: Fan 14: Motor 16: Ventilation operation unit 18: Rotation speed sensor 19: Buzzer 20: Ventilation control unit 22: Memory 24: No. 1 Operation table 30: Cooking cooker 32: Main body 34: Top plate 36: Gotoku 38: Stove burner 40: Grill storage 40a: Grill burner 42: Grill door 46: Power switch 48: Stove operation unit 50: Grill operation unit 60: Heating Control unit 62: Memory 64: First air volume table 70: Cooking container 80: Exhaust duct 82: Exhaust port 84: Bird net 86: Filter 90: Indoor 100: Alarm 102: Buzzer 104: CO sensor 200: Management server 210 : Server control unit 212: Memory

Claims (11)

Ventilation including a ventilation device capable of performing a ventilation operation for ventilating the air in the room, a cooking device for heating the cooked food, a control means for controlling the operation of the ventilation device and the cooking device, and an external server. It ’s a system,
The cooking device is
A heating unit for heating the cooked food is provided.
The ventilation device is
Equipped with a fan that exhausts air from indoors to outdoors
The control means is
Based on the operating state of the heating unit, the ventilation air volume, which is the air volume required during the ventilation operation, is specified.
Based on the ventilation air volume, the first command value for driving the fan is specified.
The fan is operated by using the first command value.
When a predetermined condition indicating that the actual amount of air is exhausted outdoors from the room by the fan is less than the ventilation power is met, and limits the amount of heat the heating portion,
Each time the fan is operated by using the first command value, the fan rotation speed, which is the rotation speed of the fan, is transmitted to the external server.
The external server is
The fan rotation speed is received from the control means, and the fan rotation speed is received from the control means.
The fan rotation speed is stored in the memory, and the fan rotation speed is stored in the memory.
The second determination rotation speed is the difference in rotation speed, which is the value obtained by subtracting the fan rotation speed received this time from the fan rotation speed first stored in the memory among the plurality of fan rotation speeds stored in the memory. A ventilation system that determines that the ventilation system is abnormal if it is less than. The cooking cooker comprises a plurality of the heating units.
The control means is
In a state where two or more of the heating units are operating among the plurality of heating units, when the predetermined conditions are satisfied, the heating amount of the heating units during operation is reduced, or the heating units are being operated. The ventilation system according to claim 1, wherein the operation of at least one of the heating units is stopped. A ventilation system including a ventilation device capable of performing a ventilation operation for ventilating indoor air, a cooking device for heating cooked food, and a control means for controlling the operation of the ventilation device and the cooking device. ,
The cooking device is
A heating unit for heating the cooked food is provided.
The ventilation device is
Equipped with a fan that exhausts air from indoors to outdoors
The control means is
It is possible to operate the fan by using the first operation command value and the second operation command value which is larger than the first operation command value by the first predetermined value.
Based on the operating state of the heating unit, the ventilation air volume, which is the air volume required during the ventilation operation, is specified.
Based on the ventilation air volume, one of the first operation command value and the second operation command value is specified as the first command value for operating the fan.
The fan is operated by using the first command value.
The first command is to increase the air volume exhausted from the room by the fan when a predetermined condition indicating that the actual air volume of the air exhausted by the fan is less than the ventilation air volume is satisfied. the value is changed to the second command value,
The second command value is larger than the first command value by a second predetermined value.
The second predetermined value is smaller than the first predetermined value.
Ventilation system. The ventilation system further comprises an external server.
The control means is
Each time the fan is operated by using the first command value, the fan rotation speed, which is the rotation speed of the fan, is transmitted to the external server.
The external server is
The fan rotation speed is received from the control means, and the fan rotation speed is received from the control means.
The fan rotation speed is stored in the memory, and the fan rotation speed is stored in the memory.
The second determination rotation speed is the difference in rotation speed, which is the value obtained by subtracting the fan rotation speed received this time from the fan rotation speed first stored in the memory among the plurality of fan rotation speeds stored in the memory. The ventilation system according to claim 3 , wherein if the number is less than, the ventilation device is determined to be abnormal. The ventilation device further includes a rotation speed sensor that detects a fan rotation speed, which is the rotation speed of the fan.
The control means is
The ventilation system according to any one of claims 1 to 4 , wherein it is determined that the predetermined condition is satisfied when the fan rotation speed exceeds the first determination rotation speed. The ventilation system further
An exhaust port that exhausts air to the outside and
An exhaust path communicating with the exhaust port and the ventilation device,
It is equipped with a differential pressure sensor that detects the pressure difference between the upstream side and the downstream side of the exhaust path.
The control means is
The ventilation system according to any one of claims 1 to 4 , wherein it is determined that the predetermined condition is satisfied when the pressure difference exceeds the determination pressure. The ventilation system further comprises a notification unit.
The control means is
The ventilation system according to any one of claims 1 to 6, wherein the notification unit is operated when the predetermined condition is satisfied. A ventilation system including a ventilation device capable of performing a ventilation operation for ventilating indoor air, a cooking device for heating cooked food, and a control means for controlling the operation of the ventilation device and the cooking device. ,
The cooking device is
A heating unit for heating the cooked food is provided.
The ventilation device is
Equipped with a fan that exhausts air from indoors to outdoors
The control means is
It is possible to operate the fan by using the first operation command value and the second operation command value which is larger than the first operation command value by the first predetermined value.
Based on the operating state of the heating unit, the ventilation air volume, which is the air volume required during the ventilation operation, is specified.
Based on the ventilation air volume, one of the first operation command value and the second operation command value is specified as the first command value for operating the fan.
The fan is operated by using the first command value.
The first command value is changed to the second command value so that the amount of air exhausted from the room by the fan increases when a predetermined condition indicating that the operation of the cooking cooker is abnormal is satisfied. Change and
The second command value is larger than the first command value by a second predetermined value.
The second predetermined value is smaller than the first predetermined value.
Ventilation system. The heating unit heats the cooked food by using the heat of burning the fuel.
The ventilation system further includes a gas detecting means for detecting a carbon monoxide concentration, which is a concentration of carbon monoxide in the combustion gas generated by the operation of the heating unit.
The control means is
The ventilation system according to claim 8, wherein when the carbon monoxide concentration exceeds a predetermined concentration, it is determined that the predetermined condition is satisfied. The ventilation system further comprises a notification unit.
The control means is
The ventilation system according to claim 8 or 9, wherein the notification unit is operated when the predetermined condition is satisfied. The ventilation system further comprises an external server.
The control means is
Every time the cooking device is operated, heating information regarding the operation of the heating unit is transmitted to the external server.
The external server is
The heating information is received from the control means, and the heating information is received.
The heating information is stored in the memory, and the heating information is stored in the memory.
The heating cooker uses the initial information specified based on the heating information first stored among the plurality of heating information stored in the memory and the heating information received this time in the heating cooker. The ventilation system according to any one of claims 8 to 10, wherein it is determined whether or not an abnormality has occurred.

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