JP7628053B2 - Heating Equipment - Google Patents

Description

The present invention relates to a heating appliance with a seismic shutdown function that limits some functions when an earthquake occurs.

Conventionally, heating appliances are known that can close the gas valve, stop combustion, and switch to safety control when an acceleration sensor detects earthquake tremors equal to or greater than a predetermined value, or when an emergency earthquake alert is received via communication.

For example, the heating device operation system in Patent Document 1 is composed of a gas fan heater that is connected and set up to enable wireless communication, and a smartphone. When the smartphone receives an emergency earthquake alert sent from a specific communication center such as a telecommunications carrier's base station while the smartphone and the gas fan heater are connected for communication, the smartphone displays the word "Received" in the emergency information reception display area on the screen, and displays the word "Emergency stop" in the status display area.

When an emergency earthquake alert is sent from a specific communication center to an area at risk of damage from an earthquake, the smartphone receives the emergency earthquake alert and, based on the received signal, transmits an emergency stop signal to the gas fan heater wirelessly connected via Bluetooth (registered trademark). When the gas fan heater receives the emergency stop signal, the gas fan heater executes emergency stop control based on the signal, bringing the operation of the gas fan heater to an emergency stop (Patent Document 1/paragraphs 0062, 0064, Figure 11).

JP 2017-163384 A

However, the heating device operation system requires that the heating device (gas fan heater) and the communication terminal (smartphone) are in communication with each other, and that the communication terminal and the communication center are in communication with each other. If communication is cut off, the system does not function, and users must constantly pay attention to the communication status.

In addition, if the shaking was sudden, heating equipment could tip over before normal operation had stopped, which could lead to a fire.

The present invention was made in light of this background, and aims to provide a heating device that can quickly execute operational control in response to the occurrence of an earthquake or other disaster, regardless of the communication state.

In order to achieve the above object, the present invention provides a heating device including a heating unit that heats an object to be heated, and a control unit that has a heating operation instruction unit that recognizes a heating operation instruction related to the heating operation of the heating unit and controls the heating operation of the heating unit based on the heating operation instruction,
The heating operation control device further includes a voice input unit that inputs the heating operation instruction by voice, and when voice information issued by an external device in response to a disaster alert received from a communication center is input to the voice input unit as the heating operation instruction during the heating operation of the heating unit, the control unit executes heating operation restriction control that stops or restricts the heating operation of the heating unit.

The heating device of the present invention is equipped with a voice input unit that inputs voice instructions for heating operation, and the control unit (heating operation instruction unit) of the heating device can recognize a disaster warning sent from an external device such as a television or smartphone as an instruction for heating operation.

If the control unit recognizes a disaster alarm during heating operation of the heating unit, it executes heating operation restriction control. This heating device can be a highly safe device, for example by limiting the heat output before actual earthquake shaking occurs, but there is no need for communication between the heating device and an external device. This has the advantage that users of the heating device are freed from the hassle of communication connections.

In the heating device of the present invention,
When the heating operation restriction control is executed, it is preferable that the control unit continues the heating operation restriction control until a predetermined instruction is input via the heating operation instruction unit.

With this configuration, the heating device continues to limit heating operation until the user confirms that the device is in a safe condition and issues a specific instruction, such as by operating a switch or inputting a voice command. This improves the safety of the device.

In addition, in the heating device of the present invention,
When the heating operation restriction control is executed, it is preferable that the control unit continue the heating operation restriction control until a first predetermined time has elapsed from the start of the execution of the heating operation restriction control.

According to this configuration, the heating operation limit control continues until the earthquake tremors subside, that is, until the first predetermined time has elapsed since the heating operation limit control was executed. This allows the heating device to release the heating operation limit control at an appropriate time while increasing the safety of the device.

In addition, in the heating device of the present invention,
Further comprising a vibration detection unit that detects vibration of the heating device,
When the heating operation restriction control is executed, it is preferable that the control unit continues the heating operation restriction control until a second predetermined time has elapsed from the start of execution without the vibration detection unit detecting vibrations equal to or greater than a predetermined value.

The heating device of the present invention is equipped with a vibration detection unit, and is therefore capable of detecting vibrations such as earthquakes. When a disaster alarm is input, the heating device transitions to heating operation restriction control, but in reality, there may be little or no vibration. Therefore, without detecting vibrations of a predetermined value or greater, the heating operation restriction control continues until the second predetermined time has elapsed from the start of execution of the heating operation restriction control. This also allows the heating device to release the heating operation restriction control at an appropriate time while increasing the safety of the device.

In addition, in the heating device of the present invention,
Further comprising a notification unit that notifies a cancellation instruction method of the heating operation restriction control,
It is preferable that the notification unit notifies the cancellation instruction method immediately after the heating-operation restriction control is executed or when a third predetermined time has elapsed since the start of the execution of the heating-operation restriction control.

The heating device of the present invention is equipped with a notification unit such as a liquid crystal display unit, and the notification unit notifies the user of a method for instructing the cancellation of the heating operation restriction control immediately after the heating operation restriction control is executed or when a third predetermined time has elapsed since the start of execution. The user can recognize the cancellation of the heating operation restriction control without referring to an instruction manual, etc., making the device highly convenient.

In addition, in the heating device of the present invention,
It is preferable that the control unit executes a heat reduction of the heating unit as the heating operation restriction control, and does not accept input of the heating operation instruction except for extinguishing the heating unit during a period during which the heat reduction continues.

When the heating power of the heating unit is reduced as a heating operation restriction control, the control unit will refuse to input any heating operation instructions other than extinguishing, so that the heating power cannot be increased inadvertently until safety is confirmed. This allows this heating device to ensure the safety of the device.

In addition, in the heating device of the present invention,
When the control unit executes a heating power reduction of the heating unit as the heating operation restriction control, it is preferable that the control unit restores the heating power state before the heating operation restriction control is executed when the heating operation restriction control is released.

When the heating power of the heating unit is reduced as part of the heating operation limit control, the control unit controls the heating power to be restored to its original state when safety is confirmed and the heating operation limit control is released. This makes it easier for the user to continue cooking after the heating operation limit control is released, increasing the convenience of the heating appliance as a device.

1 is a schematic diagram of a heating and cooking system according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an internal configuration of the cooking device and an external device. 13 is a flowchart of the heating operation limit control of a heating cooker (extinguishing). 13 is a flowchart of heating operation limit control of a cooking appliance (fire extinguishing, modified form). 13 is a flowchart of the heating operation limit control of the heating cooker (minimum heat power). 13 is a flowchart of heating operation limit control of a cooking appliance (minimum heat power, modified form).

The heating device of the present invention will be described below with reference to the drawings.

First, a cooking system according to an embodiment of a heating device will be described with reference to Figs. 1 and 2. The cooking system 1 is composed of a cooking device 10 and an external device 30 such as a smartphone. The external device 30 also has a function of receiving a disaster warning (mainly an emergency earthquake warning) from a communication center 50 and automatically transmitting the warning.

In this embodiment, the cooking device 10 is a gas stove. As shown in FIG. 1, the cooking device 10 is equipped with a left burner 5a, a right burner 5b, and a rear burner 5c, which are disposed at the left front, right front, and rear center of the top plate 4, respectively, as combustion-type heating units for heating objects to be heated. The cooking device 10 also has a grill 20 disposed in the housing of the cooking device 10 so as to be openable and closable from the front side.

Each burner 5a, 5b, 5c has a burner with a different heating capacity (maximum heat). For example, the heating capacity of each burner 5a, 5b, 5c is large, medium, small in the order of left burner 5a, right burner 5b, rear burner 5c (or right burner 5b, left burner 5a, rear burner 5c). Note that the heating capacity of each burner 5a, 5b, 5c may be the same for left burner 5a and right burner 5b, and smaller for rear burner 5c, that is, large, large, small in the order of right burner 5b, left burner 5a, rear burner 5c.

On the front of the cooking device 10, there are provided operation buttons 11a, 11b, and 11c for igniting, extinguishing, and adjusting the heat of each of the burners 5a, 5b, and 5c, and an operation button 21 for igniting, extinguishing, and adjusting the heat of the grill 20. In this case, for example, pressing each of the operation buttons 11a, 11b, and 11c ignites or extinguishes the corresponding burner 5a, 5b, or 5c, and rotating each of the operation buttons 11a, 11b, and 11c adjusts the heat of the corresponding burner 5a, 5b, or 5c.

The same applies to the operation button 21 for the grill 20. Note that the operation parts for ignition and extinguishing of each of the burners 5a, 5b, 5c and the grill 20 and the operation part for adjusting the flame power may be separate operation parts.

The front of the cooking device 10 is further provided with a push-open burner operation unit 12 and a grill operation unit 22. In this case, when the burner operation unit 12 is pressed, it opens, exposing a touch panel type burner operation panel 13 that can be operated. The burner operation panel 13 can switch the operation of each burner 5a, 5b, 5c. A liquid crystal display unit 14 is provided adjacent to the burner operation panel 13. The burner operation panel 13 does not have to be a touch panel type, and may be a tact switch provided for operating each burner 5a, 5b, 5c. Each burner 5a, 5b, 5c can be operated by pressing the tact switch.

When the grill operation unit 22 is pressed, it opens, exposing the touch panel type grill operation panel 23 for operation. The grill operation panel 23 may be a tact switch, and the grill 20 can be operated by pressing the tact switch. The stove operation panel 13 and the grill operation panel 23 may each be provided in an exposed state on the outer surface of the cooking appliance 10.

The burner operation panel 13 is configured to allow the user to perform operations related to the operation control of each burner 5a, 5b, 5c (for example, turning on and off the water boiling operation or rice cooking operation, setting the automatic cooking operation, setting the timer time, setting the heating temperature, etc.), and is also configured to display various information related to the operation of each burner 5a, 5b, 5c. The same is true for the grill operation panel 23.

In addition to the above configuration, as shown in FIG. 2, the cooking device 10 includes a control unit 7 having the function of controlling the overall operation of the cooking device 10, an audio input unit 16 such as a microphone that can input audio information from an external device 30, and a seismic sensor 17 consisting of an acceleration sensor or the like.

The control unit 7 is composed of one or more electronic circuit units including, for example, a microcomputer, a memory, an interface circuit, etc. This control unit 7 receives sensing signals from a plurality of sensors (including a seismic sensor 17) provided in the cooking device 10, and operation signals from the operation buttons 11a, 11b, 11c, 21 and the operation panels 13, 23.

The control unit 7 is composed of a heat power control unit 7A, a display control unit 7B, and a vibration determination unit 7C. The heat power control unit 7A (the "heating operation instruction unit" of the present invention) has a function realized by the implemented hardware configuration and/or program (software configuration) to control the operation of each of the heating units 5, 20, which are the burners 5a, 5b, 5c and the grill 20 (more specifically, the operation control related to ignition, extinguishing, and heat adjustment).

More specifically, the operation of each of the burners 5a, 5b, 5c and the grill 20 is controlled through the operation of an on-off valve and a flame adjustment valve provided in the fuel supply passage (not shown) corresponding to the left burner 5a, the right burner 5b, the rear burner 5c, and the grill 20, respectively, as well as through the operation of an igniter (not shown).

When the heat power control unit 7A recognizes a disaster warning (mainly an emergency earthquake alert) sent from the external device 30 and input via the voice input unit 16, it executes heating operation restriction control to stop or limit the heating operation of each burner 5a, 5b, 5c and the grill 20. Because the voice input unit 16 can always pick up voice while the cooking appliance 10 is in use, the cooking appliance 10 can execute control corresponding to an earthquake or the like, regardless of the communication state with the external device 30. Therefore, the user can cook using the cooking appliance 10 without worrying about the communication connection.

The display control unit 7B causes the liquid crystal display unit 14 (the "notification unit" of the present invention) to display a method for issuing an instruction to release the heating operation restriction control immediately after the heating operation restriction control is executed or when a predetermined time (e.g., 3 minutes) has elapsed since the start of the execution. Specifically, the liquid crystal display unit 14 displays a message such as "Press and hold any key on the stove operation panel to release the control," and the heating operation restriction control continues until the user performs the operation.

As will be described in detail later, when the heating operation restriction control is executed, the stove in use is turned off or the heat is reduced. Therefore, the display control unit 7B may display this information to make the user aware of it. If the heating cooker 10 has an audio output unit, the notification may be made by audio.

When the heating operation limit control is executed, the control unit 7 can also continue the heating operation limit control until a predetermined time (e.g., 7 minutes) has elapsed since the start of the heating operation limit control. For example, if the heating power of the left burner 5a has been reduced as the heating operation limit control, it is desirable to return the heating power to the state it was before the heating operation limit control was executed when the predetermined time has elapsed.

The vibration determination unit 7C determines the shaking of an earthquake based on the detection signal from the seismometer 17 (the "vibration detection unit" of the present invention). If the vibration determination unit 7C determines that it is dangerous to continue cooking, it instructs the heat control unit 7A to stop the heating operation of each of the burners 5a, 5b, and 5c and the grill 20. The vibration determination unit 7C may also instruct the display control unit 7B to display actions that the user should take.

When a disaster alarm is input, the cooking appliance 10 executes heating operation limit control, but in reality, there may be very little shaking. Therefore, the heating operation limit control continues until a predetermined time (e.g., 5 minutes) has elapsed since the start of execution of the heating operation limit control, without the seismic sensor 17 and the control unit 7 (vibration determination unit 7C) detecting vibrations of a predetermined value or more.

When the specified time has elapsed, the heat control unit 7A of the control unit 7 releases the heating operation restriction control. Specifically, the heat of the stove (or grill) that executed the heating operation restriction control is returned to its original state. This allows the heating cooker 10 to release the heating operation restriction control at an appropriate time while increasing the safety of the device.

As shown in FIG. 2, the external device 30 is composed of a control unit 31 that controls the operation of the external device 30, a communication unit 32 for wireless communication, and an audio output unit 33 such as a speaker. The external device 30 is, for example, a portable communication terminal such as a smartphone, tablet terminal, or mobile computer used by a user of the cooking appliance 10.

The control unit 31 of the external device 30 is configured with an electronic circuit unit including, for example, a microcomputer, memory, an interface circuit, etc., and receives operation signals from the operation unit. The control unit 31 executes a pre-installed application, and is capable of communicating with a server in the communication center 50 via the communication unit 32 and an external network NW consisting of the Internet, a public line network, etc. (see FIG. 1).

Furthermore, when a disaster warning is transmitted from the communication center 50, the control unit 31 controls the audio output unit 33 to output a warning sound or a message such as "It's an earthquake" or "Large shaking will occur" as audio information. The external device 30 may be a television, radio, cable broadcasting, etc. that outputs a disaster warning.

Next, a flowchart of the heating operation limit control of the heating cooker 10 will be described with reference to Figures 3 to 6.

First, Figure 3 shows a flowchart for limiting heating operation by extinguishing the flame of a burner (for example, the left burner 5a).

In the cooking device 10, it is checked whether the burner is currently ignited (STEP 01). If the burner is currently ignited, the process proceeds to STEP 02, and if the burner is not currently ignited, the process loops until the burner is ignited.

If the burner is ignited ("YES" in STEP 01), it is determined whether the cooking appliance 10 (control unit 7, audio input unit 16) has detected an emergency earthquake warning (STEP 02). The audio input unit 16 is always capable of picking up audio while the cooking appliance 10 is in use, and is therefore not affected by the state of communication with the external device 30. If the cooking appliance 10 detects an emergency earthquake warning, it proceeds to STEP 03, and if it has not detected an emergency earthquake warning, it loops until it does (it may end once).

When the cooking appliance 10 detects an emergency earthquake warning ("YES" in STEP 02), it starts the heating operation restriction control (extinguishing) (STEP 03). Normally, an emergency earthquake warning is sent from an external device 30 (smartphone, radio, etc.) before actual shaking occurs. Therefore, the heating operation restriction control here is a process in which the cooking appliance 10 extinguishes the burner flame in preparation for danger after it recognizes the emergency earthquake warning and before the occurrence of earthquake shaking.

Next, the cooking appliance 10 displays the cancellation instruction method (STEP 04). Specifically, the liquid crystal display unit 14 displays the cancellation method for the heating operation restriction control (operation instructions from the operation panel 13, voice input instructions from the voice input unit 16 (including special phrases), etc.). This allows the user to cancel the heating operation restriction control without referring to the instruction manual.

Next, the cooking appliance 10 determines whether or not a first predetermined time has elapsed (STEP 05). The first predetermined time is the time for automatically releasing the heating operation restriction control, and is, for example, 7 minutes. If the first predetermined time has elapsed, the process proceeds to STEP 08, and if the first predetermined time has not yet elapsed, the process proceeds to STEP 06.

First, the case where the first predetermined time has not elapsed ("NO" in STEP 05) will be described. In this case, the cooking device 10 judges whether or not a release command has been issued (STEP 06). A release command refers to the predetermined operation or voice input shown in STEP 04. If a release command has been issued, the process proceeds to STEP 07, and if a release command has not been issued, the process returns to STEP 05.

If a release command is received ("YES" in STEP 06), the cooking appliance 10 determines whether a predetermined time has elapsed (STEP 07). The predetermined time here is preferably shorter than the first predetermined time. The heating operation restriction control of the cooking appliance 10 continues until the predetermined time (e.g., 5 minutes) has elapsed. If the predetermined time has elapsed, the process proceeds to STEP 08, and if the predetermined time has not yet elapsed, the process loops until the predetermined time has elapsed.

When the first predetermined time has elapsed ("YES" in STEP 05), or when the predetermined time has elapsed ("YES" in STEP 07), the cooking appliance 10 releases the heating operation restriction control (STEP 08). That is, the heating operation restriction control is released when the first predetermined time has elapsed, or when the release command plus the predetermined time has elapsed.

Finally, the cooking appliance 10 reignites the burner (STEP 09). This returns the burner to the state it was in before the heating operation limit control was executed, allowing the user to continue cooking.

In the cooking device 10 of this embodiment, ignition and extinguishing are controlled by operating the stove operation panel 13, so the device re-ignites automatically. However, in the case of cooking devices that are ignited by pressing a switch, the user must manually operate the device to re-ignite the device.

This completes the series of processes for the heating operation restriction control. In the above flowchart, the cancellation instruction method is notified immediately after the heating operation restriction control is executed, but the notification may be made when a third predetermined time (e.g., three minutes or the timing at which cancellation becomes possible) has elapsed since the start of execution. If the heating cooker 10 has an audio output unit, the cancellation method may be output by audio.

As a heating operation limiting control, the power supply to the heating cooker 10 may be turned off (STEP 03'). In this case, when the heating operation limiting control is released, the power supply is automatically turned on (STEP 09'). The control may also automatically reignite the burner.

Figure 4 shows a modified form of the flowchart when the burner flame is extinguished as heating operation limit control. Here, various controls are executed based on the vibrations detected by the seismometer 17. Note that some of the explanations of the same controls as in Figure 3 are omitted.

The determination of whether the burner is ignited in STEP 11, the determination of whether an emergency earthquake warning has been detected in STEP 12, the start of heating operation restriction control in STEP 13, and the display of the release instruction method in STEP 14 are the same as STEPs 01 to 04 in Figure 3.

After STEP 14, the cooking appliance 10 determines whether or not vibrations of a predetermined value or more have been detected (STEP 15). Vibrations of a predetermined value or more mean dangerous shaking (e.g., seismic intensity 3 or more) if the burner is ignited. If vibrations of a predetermined value or more have been detected, the process proceeds to STEP 16, and if vibrations of a predetermined value or more have not been detected, the process proceeds to STEP 17.

If vibrations of a predetermined value or more are detected ("YES" in STEP 15), the cooking device 10 displays an error (STEP 16). Specifically, a message such as "Large vibrations have been detected, so the power will be turned off" is displayed on the liquid crystal display unit 14 of the cooking device 10, and all functions of the cooking device 10 are stopped. After that, the series of processes for the heating operation restriction control are terminated.

On the other hand, if vibrations equal to or greater than the predetermined value are not detected ("NO" in STEP 15), the cooking appliance 10 determines whether or not the second predetermined time has elapsed (STEP 17). Although the heating operation limit control has been executed in response to an emergency earthquake alert, there are cases in which no significant shaking actually occurs. The second predetermined time is the time for automatically releasing the heating operation limit control in such a situation, and is, for example, five minutes. If the second predetermined time has elapsed, the process proceeds to STEP 18, and if the second predetermined time has not yet elapsed, the process returns to STEP 15.

If the second predetermined time has elapsed ("YES" in STEP 17), the cooking device 10 releases the heating operation restriction control (STEP 18). That is, the heating operation restriction control is released when the second predetermined time has elapsed without detecting vibrations equal to or greater than the predetermined value.

Finally, the cooking appliance 10 reignites the burner (STEP 19). This returns the burner to the state it was in before the heating operation limit control was executed. After that, the series of processes for the heating operation limit control ends.

The heating operation limit control in FIG. 3 and the heating operation limit control (modified form) in FIG. 4 are separated for the sake of simplicity, but both may be combined. In other words, in addition to the heating operation limit control in FIG. 3, various controls related to the seismic sensor 17 may be executed.

Next, Figure 5 shows a flowchart for limiting heating operation by minimizing the heat of a burner (for example, the left burner 5a).

In the cooking device 10, it is checked whether the burner is currently ignited (STEP 21). If the burner is currently ignited, the process proceeds to STEP 22, and if the burner is not currently ignited, the process loops until the burner is ignited.

If the burner is ignited ("YES" in STEP 21), it is determined whether the cooking appliance 10 (control unit 7, audio input unit 16) has detected an emergency earthquake warning (STEP 22). The audio input unit 16 is always capable of picking up audio while the cooking appliance 10 is in use, and is therefore not affected by the state of communication with the external device 30. If an emergency earthquake warning is detected, the process proceeds to STEP 23, and if an emergency earthquake warning is not detected, the process loops until it is detected (it may end once).

When the cooking appliance 10 detects an earthquake early warning ("YES" in STEP 22), it starts heating operation limit control (minimum heat) (STEP 23). The heating operation limit control here is a process in which, after the cooking appliance 10 recognizes the earthquake early warning, the burner heat is reduced to minimum in preparation for danger before the occurrence of earthquake tremors.

Next, the cooking device 10 displays the cancellation instruction method (STEP 24). Specifically, the liquid crystal display unit 14 of the cooking device 10 displays the cancellation method for the heating operation restriction control (operation instructions from the operation panel 13, voice input instructions from the voice input unit 16, etc.).

Next, the cooking appliance 10 determines whether or not the fire has been manually turned off (STEP 25). Since there may be situations in which it is better for the user to turn off the fire at their own discretion, the cooking appliance 10 is designed to allow only the fire-extinguishing operation to be performed manually (or by voice input). Note that operations other than extinguishing the fire, such as returning the fire to its original power level (or voice input), are not accepted. If the fire-extinguishing operation has been performed, the process proceeds to STEP 26, and if the fire-extinguishing operation has not been performed, the process proceeds to STEP 27.

If the user performs the extinguishing operation ("YES" in STEP 25), the cooking device 10 normally stops (STEP 26). After that, the series of heating operation restriction control processes ends.

On the other hand, if the user has not performed the extinguishing operation ("NO" in STEP 25), the cooking appliance 10 determines whether or not the first predetermined time has elapsed (STEP 27). The first predetermined time is the time for automatically releasing the heating operation restriction control. If the first predetermined time has elapsed, the process proceeds to STEP 30, and if the first predetermined time has not yet elapsed, the process proceeds to STEP 28.

If the first predetermined time has not elapsed ("NO" in STEP 27), the cooking device 10 determines whether or not a release command has been issued (STEP 28). If a release command has been issued, the process proceeds to STEP 29, and if a release command has not been issued, the process returns to STEP 27.

If a release command is received ("YES" in STEP 28), the cooking device 10 determines whether or not a predetermined time has elapsed (STEP 29). If the predetermined time has elapsed, the process proceeds to STEP 30, and if the predetermined time has not yet elapsed, the process loops until the predetermined time has elapsed.

When the first predetermined time has elapsed ("YES" in STEP 27), or when a predetermined time has elapsed ("YES" in STEP 29), the cooking appliance 10 releases the heating operation restriction control (STEP 30).

Finally, the cooking appliance 10 returns the burner to its original heating power state (STEP 31). This returns the burner heating power to the state before the heating operation limit control was executed, allowing the user to continue cooking. The burner heating power may be returned to the heating power a predetermined time ago, not necessarily to the state immediately before the heating operation limit control was executed. This completes the series of processes for the heating operation limit control.

As heating operation restriction control, the heat of the cooking appliance 10 may be reduced from the current level (STEP 23'). In this case, during the heating operation restriction control period, only the extinguishing operation and the operation (or voice input) to further reduce the heat are accepted.

Finally, Figure 6 shows a modified form of the flowchart for limiting heating operation by setting the burner flame to the minimum heat. Here, various controls are performed based on the vibrations detected by the seismometer 17. Note that some of the explanations for the same controls as in Figure 5 will be omitted.

The steps of determining whether the burner is ignited in STEP 41, determining whether an emergency earthquake alert has been detected in STEP 42, starting heating operation limit control (minimum heat) in STEP 43, displaying the release instruction method in STEP 44, determining whether the fire extinguishing operation has been performed in STEP 45, and normal shutdown in STEP 46 are the same as steps 21 to 26 in Figure 5.

If the extinguishing operation has not been performed manually ("NO" in STEP 45), the cooking device 10 determines whether or not vibrations of a predetermined value or more have been detected (STEP 47). If vibrations of a predetermined value or more have been detected, the process proceeds to STEP 48, and if vibrations of a predetermined value or more have not been detected, the process proceeds to STEP 49.

If vibrations of a predetermined value or more are detected ("YES" in STEP 47), the cooking device 10 displays an error (STEP 48). Specifically, a message such as "Large vibrations have been detected, so the power will be turned off" is displayed on the liquid crystal display unit 14 of the cooking device 10, and all functions of the cooking device 10 are stopped. After that, the series of processes for the heating operation restriction control are terminated.

On the other hand, if vibrations equal to or greater than the predetermined value are not detected ("NO" in STEP 47), the cooking device 10 determines whether or not the second predetermined time has elapsed (STEP 49). If the second predetermined time has elapsed, the process proceeds to STEP 50, and if the second predetermined time has not yet elapsed, the process returns to STEP 47.

If the second predetermined time has elapsed ("YES" in STEP 49), the cooking device 10 releases the heating operation restriction control (STEP 50). That is, the heating operation restriction control is released when the second predetermined time has elapsed without detecting vibrations equal to or greater than the predetermined value.

Finally, the cooking appliance 10 returns the burner to its original heating power state (STEP 51). This returns the burner to the state it was in before the heating operation limit control was executed, allowing the user to continue cooking. This completes the series of processes for the heating operation limit control.

The heating operation limit control in FIG. 5 and the heating operation limit control (modified form) in FIG. 6 are also separated for the sake of simplicity of explanation, but both may be combined. That is, in addition to the heating operation limit control in FIG. 5, various controls related to the seismic sensor 17 may be executed. Furthermore, the above-mentioned fire extinguishing (see FIG. 3 and FIG. 4) may also be executed as heating operation limit control, and the device or system may be configured to perform various controls in the case of fire extinguishing and in the case of minimum fire power.

The present invention is not limited to the above-mentioned embodiments and modifications, but can be implemented in various forms without departing from the spirit of the invention.

In the above embodiment, a cooking device is used as an example of a heating device, but a space heater or a gas combustion device may also be used. In addition, the burners of the stoves 5a to 5c are used as an example of a heating unit, but a grill 20, an induction heater, or other heating means may also be used, and some of the operation panels 13 and 23 may include operation buttons and dials.

1 Cooking system 5, 20 Heating unit 5a Left burner 5b Right burner 5c Rear burner 7 Control unit (cooking device side)
7A Heat power control unit 7B Display control unit 7C Vibration determination unit 10 Cooking appliances 11a to 11c, 21 Operation buttons 12 Stove operation unit 13 Stove operation panel 14 Liquid crystal display unit 16 Voice input unit 17 Seismic sensor 20 Grill 22 Grill operation unit 23 Grill operation panel 30 External device 31 Control unit (external device side)
32 Communication unit 33 Audio output unit 50 Communication center

Claims (7)

A heating unit that heats the object to be heated;
A control unit having a heating operation instruction unit that recognizes a heating operation instruction regarding the heating operation of the heating unit and controls the heating operation of the heating unit based on the heating operation instruction;
In a heating device comprising:
A voice input unit for inputting the heating operation instruction by voice is further provided,
The control unit executes heating operation restriction control to stop or limit the heating operation of the heating unit when voice information issued in response to a disaster alert received by an external device from a communication center is input to the voice input unit as the heating operation instruction during the heating operation of the heating unit. The heating device according to claim 1, characterized in that, when the heating operation limiting control is executed, the control unit continues the heating operation limiting control until a predetermined instruction is input via the heating operation instruction unit. The heating device according to claim 1 or 2, characterized in that, when the heating operation limiting control is executed, the control unit continues the heating operation limiting control until a first predetermined time has elapsed from the start of the execution. Further comprising a vibration detection unit that detects vibration of the heating device,
The heating device according to any one of claims 1 to 3, characterized in that when the heating operation restriction control is executed, the control unit continues the heating operation restriction control until a second predetermined time has elapsed from the start of execution without the vibration detection unit detecting vibrations equal to or greater than a predetermined value. Further comprising a notification unit that notifies a cancellation instruction method of the heating operation limit control,
The heating device according to any one of claims 2 to 4, wherein the notification unit notifies the user of the cancellation instruction method immediately after the heating operation restriction control is executed or when a third predetermined time has elapsed since the start of the execution of the heating operation restriction control. The heating device according to any one of claims 1 to 5, characterized in that the control unit reduces the heat of the heating unit as the heating operation restriction control, and does not accept input of the heating operation instruction except for turning off the heating unit during the period during which the reduction in heat of the heating unit is continued. The heating device according to any one of claims 1 to 6, characterized in that when the control unit reduces the heating power of the heating unit as the heating operation limit control, when the heating operation limit control is released, the control unit returns the heating power to the state before the heating operation limit control was executed.

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