JP7316846B2 - Computer program for heating system, heating device and mobile terminal - Google Patents

Description

TECHNICAL FIELD The technology disclosed herein relates to a heating system, a heating device, and a computer program for a mobile terminal.

Patent Literature 1 discloses a system including a human sensor and a heating device. The heating device automatically stops heating when it does not receive a sensing signal from the human sensor during heating.

JP-A-2006-234233

For example, there is a case where a person leaves the heating device while the heating device is performing heating, such as in the case of stewing in a heating cooker. According to the above technology, if a person leaves the heating device even for a short time, the heating device automatically extinguishes the fire in response to not receiving a detection signal from the human sensor. In other words, the fire may be extinguished in spite of the fact that stew cooking is being performed (that is, regardless of the user's intention).

This specification provides a technique for suppressing reduction of the heating amount of the heating device regardless of the user's intention.

A heating system disclosed in the present specification includes a mobile terminal capable of establishing a wireless connection with the heating device. After the wireless connection is established, the mobile terminal uses the radio field intensity of the wireless connection to estimate the distance between the heating device and the mobile terminal, and the distance between the devices is a predetermined distance. In the above cases, the wireless connection is used to transmit a reduction instruction for reducing the heating amount of the heating device to the heating device. The heating device reduces the amount of heating according to the reduction instruction when the reduction instruction is received from the mobile terminal, and when the wireless connection is lost after the wireless connection is established, When a predetermined first time elapses, the heating amount is reduced even if the reduction instruction is not received from the portable terminal.

According to the above configuration, wireless connection is established between the heating device and the mobile terminal. The portable terminal transmits a reduction instruction to the heating device using the wireless connection when the inter-device distance estimated using the radio wave intensity of the wireless connection is equal to or greater than a predetermined distance. For example, when stewed food is being cooked in a heating cooker, if the distance between the devices is less than a predetermined distance, there is a possibility that the user carrying the portable terminal is temporarily away from the heating device. In this case, the amount of heating is not reduced, and reduction of the amount of heating can be suppressed regardless of the user's intention. On the other hand, if the inter-device distance is greater than or equal to the predetermined distance, the user may forget to use the heating device. In this case, the amount of heating can be reduced and safety can be ensured. Further, when the wireless connection is lost, the heating device reduces the amount of heating when the first time has passed since the loss, even if the reduction instruction is not received from the portable terminal. Loss of wireless connection means, for example, that the user carrying the mobile terminal has moved away from the heating device to such a distance that it is no longer possible to maintain a wireless connection. For example, in situations where a heating device is in use, the wireless connection may be lost when the user leaves the heating device to attend to guests. In this case, since the user returns to the heating device before the first time elapses, the heating amount is not reduced, and reduction of the heating amount can be suppressed regardless of the user's intention. On the other hand, if the first time has passed since the disappearance, the user may forget to use the heating device. In this case, the amount of heating can be reduced and safety can be ensured. Here, the above-mentioned "reduction instruction" may be an instruction to weaken the heating amount, an instruction to stop heating after reducing the heating amount, or an instruction to stop heating.

Further, the portable terminal has a distance between devices equal to or greater than a predetermined distance, and the time-series data of the distance between devices indicates that the portable terminal is separated from the heating device, and the time-series data of the distance between devices is less than the first threshold value (first case), the reduction instruction is transmitted to the heating device at the first timing, the distance between the devices is equal to or greater than a predetermined distance, and When the time-series data of the inter-device distance indicates that the mobile terminal is moving away from the heating device and the moving speed is equal to or higher than the first threshold (second case), the second timing is earlier than the first timing. Send to the heating device in time. The second case above means that the user carrying the mobile terminal moves away from the heating device quickly. In such a case, there is a high possibility that the user forgets to use the heating device and leaves the heating device. According to the above configuration, in the second case, by transmitting the reduction instruction to the heating device at the second timing, which is earlier than the first timing in the other first case, it is possible to ensure greater safety.

In another embodiment , the portable terminal has an inter-device distance of less than a predetermined distance, the time-series data of the inter-device distance indicates that the portable terminal is moving away from the heating device, and When the moving speed of the mobile terminal calculated from the time-series data of the distance is less than the second threshold, the reduction instruction is not transmitted to the heating device, the distance between the devices is less than the predetermined distance, and the distance between the devices is less than the predetermined distance. When the time-series data indicates that the mobile terminal is moving away from the heating device and the moving speed is equal to or greater than the second threshold (third case), a reduction instruction is transmitted to the heating device. The third case above means that the user carrying the portable terminal is within a predetermined distance from the heating device, but the user quickly moves away from the heating device. In such a case, there is a high possibility that the user forgets to use the heating device and leaves the heating device. In such a case, by transmitting the decrease instruction to the heating device even though the distance between the devices is less than the predetermined distance, the amount of heating can be reduced and safety can be improved.
Further, another heating system disclosed in this specification includes a mobile terminal capable of establishing a wireless connection with the heating device. After the wireless connection is established, the mobile terminal uses the radio field intensity of the wireless connection to estimate the distance between the heating device and the mobile terminal, and the distance between the devices is a predetermined distance. In the above cases, the wireless connection is used to transmit a reduction instruction for reducing the heating amount of the heating device to the heating device. The heating device reduces the amount of heating according to the reduction instruction when the reduction instruction is received from the mobile terminal, and when the wireless connection is lost after the wireless connection is established, When the wireless connection is lost after the wireless connection is established by reducing the heating amount without receiving the reduction instruction from the portable terminal when a predetermined first time elapses, It is configured not to reduce the amount of heating when the wireless connection with the mobile terminal is re-established before the first time elapses after disappearance.

Further, the heating device is a heating cooker that heats the object to be cooked, and the reduction instruction includes an instruction to weaken the amount of heat for heating the object to be cooked, and an instruction to reduce the amount of heat for heating the object to be cooked, and after a predetermined second time has passed since the and an instruction to stop heating the object. For example, a comparative example is assumed in which the reduction instruction consists only of an instruction to stop heating. In this comparative example, when the user carrying the portable terminal moves away from the heating device by a predetermined distance or more, the heating device immediately stops heating according to the reduction instruction. For example, in the case of stewed cooking, the user may move away from the heating device by a predetermined distance or more. In this case, if the heating is stopped immediately, stew cooking may end regardless of the user's intention. According to the above configuration, the heating amount is weakened before the heating is stopped, so that it is possible to ensure safety and prevent the cooking in progress from ending regardless of the user's intention.

Moreover, not only the heating system described above, but also the heating device itself capable of communicating with the portable terminal in the heating system described above is novel and useful.

The specification also discloses a computer program for a mobile terminal capable of establishing a wireless connection with a heating device. After the wireless connection is established, the computer program estimates an inter-device distance between the heating device and the portable terminal by using the radio wave intensity of the wireless connection, and calculates the time series of the inter-device distance. When the data indicates that the mobile terminal moves away from the heating device, the heating amount of the heating device is reduced according to the moving speed of the mobile terminal calculated from the time-series data of the inter-device distance. The timing of transmitting the reduction instruction to the heating device is made different.

A slow moving speed of the mobile terminal means that the user carrying the mobile terminal is slowly moving away from the heating device. In this case, although it is highly likely that the user has moved from the room in which the heating device is installed to another room, the user may return to the room in which the heating device is installed in a short period of time. be. On the other hand, the fast moving speed of the mobile terminal means that the user carrying the mobile terminal is moving away from the heating device quickly. In this case, there is a high possibility that the user forgets to use the heating device and leaves the heating device. That is, there is a high possibility that the user will not return to the room where the heating device is installed. According to the above configuration, the mobile terminal varies the timing of transmitting the reduction instruction to the heating device according to the moving speed of the mobile terminal. For example, if the timing of transmitting the reduction instruction to the heating device is delayed when the moving speed is slow, the amount of heating will not be affected by the user's intention if the user returns to the room in which the heating device is installed before the timing. can be suppressed. Further, if the timing of transmitting the reduction instruction to the heating device is advanced when the moving speed is fast, the heating amount of the heating device can be quickly reduced to ensure safety. In this case, since the user is likely to be out of the house, the user's intention (that is, the intention that the amount of heating may be reduced) may be met. Furthermore, by advancing the timing of transmitting the reduction instruction to the heating device, the reduction instruction can be transmitted to the heating device before the wireless connection between the portable terminal and the heating device is lost, thereby improving safety. can be done. As described above, it is possible to suppress reduction of the heating amount of the heating device regardless of the user's intention.

In addition, this specification further discloses a computer program for a portable terminal capable of establishing a wireless connection with a heating cooker that heats an object to be cooked. After the wireless connection is established, the computer program uses the radio wave intensity of the wireless connection to estimate the distance between the devices between the cooking device and the portable terminal, and the distance between the devices is determined. When the distance is greater than or equal to the distance, the wireless connection is used to transmit a reduction instruction for reducing the heating amount of the heating cooker to the heating cooker and notify the user that the heating amount is to be reduced. The reduction instruction is configured to display a first screen , and the reduction instruction includes an instruction to weaken the amount of heating for heating the object to be cooked, and after a predetermined second time has elapsed after weakening the amount of heating, the and an instruction to stop heating the object to be cooked.
In addition, this specification further discloses another computer program for a mobile terminal capable of establishing a wireless connection with a heating cooker that heats an object to be cooked. After the wireless connection is established, the computer program uses the radio wave intensity of the wireless connection to estimate the distance between the devices between the cooking device and the portable terminal, and the distance between the devices is determined. When the distance is greater than or equal to the first distance, the wireless connection is used to transmit a reduction instruction for reducing the heating amount of the heating cooker to the heating cooker, and the distance between the devices is the first distance When the distance is less than and a predetermined second distance or more, a second screen is displayed to inform the user that the user is away from the cooking device without transmitting the reduction instruction to the cooking device. The reduction instruction includes an instruction to weaken the amount of heating for heating the object to be cooked, and an instruction to stop heating the object to be cooked after a predetermined second time has passed since the amount of heating was reduced. ,including.

According to the above configuration, the heating amount is weakened before the heating is stopped, so that it is possible to ensure safety and prevent the cooking in progress from ending regardless of the user's intention.

It is a figure which shows the structure of a heating system typically. 4 is a flowchart showing processing of a mobile terminal; It is a flow chart which shows processing of a heating cooker. FIG. 10 is a diagram showing a specific case in which the distance between devices is 15 m or more; FIG. 10 is a diagram showing a specific case where the inter-device distance is 10 m or more and less than 15 m;

(Heating system 2; Fig. 1)
A heating system 2 of an embodiment will be described with reference to the drawings. The heating system 2 includes a heating cooker 10 and a mobile terminal 100 . The mobile terminal 100 can communicate with the heating cooker 10 using wireless communication (hereinafter referred to as “BT communication”) according to the Bluetooth (registered trademark) system.

(Configuration of cooking device 10)
The heating cooker 10 is a gas combustion stove. The heating cooker 10 includes a stove burner 12 , an operation section 14 , a display section 16 , a BT interface 20 and a control section 30 . In addition, below, an interface is also described as "I/F."

The stove burner 12 is a burner for heating an object to be cooked (for example, a cooking container). A gas supply path (not shown) is connected to the stove burner 12 . The gas supply path is provided with a stove adjustment valve (not shown) for adjusting the amount of gas supplied to the stove burner 12 . The stove burner 12 is ignited by operating an igniter (not shown) while gas is being supplied to the stove burner 12 . For example, the cooking device 10 has three stove burners 12 .

The operation unit 14 is an operation unit for igniting and extinguishing the stove burner 12 and adjusting the heating amount. The display unit 16 is a display for displaying various information. The display unit 16 may function as a so-called touch panel (that is, the operation unit 14). The BTI/F 20 is a communication interface for executing BT communication with an external device (for example, mobile terminal 100).

The control unit 30 includes a memory 32 configured by a volatile memory, a nonvolatile memory, or the like. The control unit 30 controls the operation of each unit (eg 12 to 20) of the heating cooker 10 according to a program 34 stored in the memory 32. FIG.

(Configuration of mobile terminal 100)
The mobile terminal 100 is, for example, a portable terminal such as a smart phone, a tablet terminal, or a notebook PC. Mobile terminal 100 includes display unit 116 , BTI/F 120 , and control unit 130 . The display unit 116 is a display for displaying various information. The display unit 116 may function as a so-called touch panel (that is, an operation unit). BTI/F 120 is a communication interface for executing BT communication with cooking device 10 .

The control unit 130 includes a memory 132 configured by a volatile memory, a non-volatile memory, or the like. Control unit 130 controls operations of respective units 116 and 120 of portable terminal 100 according to program 134 stored in memory 132 . Program 134 is an application program provided by the vendor of cooking device 10 . Portable terminal 100 establishes wireless connection for performing BT communication with cooking device 10 according to program 134 . The mobile terminal 100 uses BT communication to receive information about the cooking device 10 (for example, thermal power and cooking time) from the cooking device 10 and display the information on the display unit 116 . In addition, the mobile terminal 100 uses BT communication to transmit information for automatic cooking (for example, thermal power and cooking time) to the heating cooker 10 . In addition, the mobile terminal 100 executes the process of FIG. 2 described later according to the program 134. FIG.

(Processing of mobile terminal 100; FIG. 2)
Processing executed by control unit 130 of mobile terminal 100 according to program 134 will be described with reference to FIG. The processing is processing for monitoring the distance between the mobile terminal 100 and the cooking device 10 and executing control according to the distance. The processing is triggered by receiving ignition information indicating that the stove burner 12 has been ignited from the cooking device 10 after wireless connection is established with the cooking device 10 .

In S10, the control unit 130 sets a timer for a predetermined time (for example, 3 minutes). That is, the control unit 130 starts counting down the predetermined time.

In S<b>12 , the control unit 130 estimates the inter-device distance between the heating cooker 10 and the mobile terminal 100 using the radio wave intensity of the established wireless connection. Generally, the radio wave intensity becomes stronger as the distance between devices becomes shorter, and becomes weaker as the distance between devices becomes longer. Control unit 130 estimates the inter-device distance using the correlation between the radio wave intensity and the inter-device distance. Here, the radio wave intensity is measured using, for example, RSSI (abbreviation of Received Signal Strength Indicator). As will be described later, the inter-device distance is repeatedly estimated. Control unit 130 stores the time-series data of the inter-device distance in memory 132 .

In S20, control unit 130 determines whether or not the inter-device distance estimated in S12 is 15 m or more. When the control unit 130 determines that the inter-device distance is 15 m or more (YES in S20), the process proceeds to S22.

In S22, the control unit 130 uses the time-series data of the inter-device distance to determine whether the moving speed of the portable terminal 100 away from the cooking device 10 is equal to or greater than the first threshold. Specifically, control unit 130 calculates the absolute value of the moving speed of mobile terminal 100 from the time-series data of the inter-device distance. Further, control unit 130 determines whether or not the time-series data of the inter-device distance indicates that portable terminal 100 is separated from cooking device 10 . Then, if control unit 130 determines that the moving speed is equal to or greater than the first threshold value and the time-series data of the inter-device distance indicates that portable terminal 100 is separated from heating cooker 10, the portable terminal 100 It is determined that the speed at which the terminal 100 moves away from the cooker 10 is greater than or equal to the first threshold (YES in S22), and the process proceeds to S26.

In S<b>26 , control unit 130 displays a warning screen on display unit 116 . The warning screen is a screen for warning the user carrying the portable terminal 100 that the fire will be extinguished because the user is away from the heating cooker 10 even though the portable terminal 100 is being ignited. Further, control unit 130 uses wireless connection to transmit a fire extinguishing instruction to fire cooker 10 via BTI/F 120 to extinguish stove burner 12 . Thereby, the heating cooker 10 extinguishes the stove burner 12 according to the extinguishing instruction. When S26 ends, the process of FIG. 2 ends.

In addition, control unit 130 sets at least one of the condition that the moving speed is less than the first threshold and the condition that the time-series data of the inter-device distance indicates that portable terminal 100 is approaching heating cooker 10. If one of the conditions is satisfied, it is determined that the moving speed of the portable terminal 100 away from the cooking device 10 is less than the first threshold (NO in S22). In this case, the controller 130 proceeds to S24.

In S24, the control unit 130 determines whether or not the timer set in S10 has timed out (that is, a predetermined time has passed since the start of S10). If the time has expired (YES in S24), control unit 130 proceeds to S26, and if the time has not expired (NO in S24), returns to S12 to estimate the inter-device distance again.

If control unit 130 determines that the inter-device distance is less than 15 m (NO in S20), control unit 130 proceeds to S30. In S30, control unit 130 determines whether or not the inter-device distance is 10 m or more and less than 15 m. When the control unit 130 determines that the inter-device distance is 10 m or more and less than 15 m (YES in S30), the process proceeds to S32.

In S32, the control unit 130 uses the time-series data of the inter-device distance to determine whether the moving speed of the portable terminal 100 away from the cooking device 10 is equal to or greater than the second threshold. The specific contents of the processing of S32 are the same as those of S22. Here, the second threshold is a value larger than the first threshold of S22. Note that in a modification, the second threshold may be the same as the first threshold in S22. When the controller 130 determines that the moving speed of the portable terminal 100 away from the cooker 10 is equal to or higher than the second threshold (YES in S32), the process proceeds to S26. On the other hand, when the controller 130 determines that the moving speed of the portable terminal 100 away from the cooker 10 is less than the second threshold (NO in S32), the process proceeds to S34.

S34 is the same as S24. If the time has expired (YES in S34), control unit 130 proceeds to S36, and if the time has not expired (NO in S34), returns to S12 to estimate the inter-device distance again.

In S<b>36 , control unit 130 displays a notification screen on display unit 116 . The notification screen is a screen for notifying the user carrying the portable terminal 100 that the heating cooker 10 is away from the cooking device 10 even though the ignition is being performed. When S36 ends, the process of FIG. 2 ends.

If control unit 130 determines that the inter-device distance is less than 10 m (NO in S30), control unit 130 proceeds to S40. In S40, control unit 130 determines whether or not the inter-device distance is 5 m or more and less than 10 m. When the control unit 130 determines that the inter-device distance is 5 m or more and less than 10 m (YES in S40), the process proceeds to S50.

S50 is similar to S24. If the time has expired (YES in S50), control unit 130 proceeds to S52, and if the time has not expired (NO in S50), returns to S12 to estimate the inter-device distance again.

S52 is similar to S36. When S52 ends, the process of FIG. 2 ends.

If control unit 130 determines that the inter-device distance is less than 5 m (NO in S40), control unit 130 returns to S10. That is, the control unit 130 cancels the previously set timer and sets the timer for the predetermined time again.

(Processing of heating cooker 10; FIG. 3)
Processing executed by control unit 30 of heating cooker 10 according to program 34 will be described with reference to FIG. 3 . This process is triggered by ignition of the stove burner 12 in response to the operation of the operation unit 14 after wireless connection is established with the mobile terminal 100 .

In S<b>60 , the control unit 30 monitors reception of a fire extinguishing instruction (see S<b>26 in FIG. 2 ) from the mobile terminal 100 via the BTI/F 20 using wireless connection. If the control unit 30 receives a fire extinguishing instruction from the mobile terminal 100 (YES in S60), the control unit 30 proceeds to S64.

In S64, the control unit 30 extinguishes the stove burner 12 according to the received extinguishing instruction. Specifically, the control unit 30 closes the stove adjustment valve to stop the gas supply to the stove burner 12 . When S64 ends, the process of FIG. 3 ends.

Further, in S70, the control unit 30 monitors loss of wireless connection. Here, “the wireless connection is lost” means that the wireless connection is disconnected when the portable terminal 100 moves away from the cooking device 10 to a distance (for example, 30 m) where the wireless connection cannot be maintained. means The wireless connection is also disconnected, for example, when the user performs an operation to disconnect the wireless connection with the heating cooker 10 on the portable terminal. In this case, the wireless connection is disconnected even though the radio wave intensity of the wireless connection is stronger than the predetermined intensity. On the other hand, when the wireless connection is lost, the wireless connection is disconnected after the radio wave intensity of the wireless connection becomes weaker than the predetermined intensity. When the wireless connection is disconnected after the radio wave intensity of the wireless connection becomes weaker than the predetermined intensity, the control unit 30 determines that the wireless connection has been lost (YES in S70), and proceeds to S72.

In S72, the control unit 30 monitors whether a predetermined waiting time (for example, 5 minutes) has passed since the wireless connection was lost. If the predetermined standby time has elapsed since the wireless connection was lost (YES in S72), the controller 30 proceeds to S74.

In S<b>74 , the control unit 30 automatically extinguishes the stove burner 12 without receiving the extinguishing instruction and without operating the operation unit 14 . When S74 ends, the process of FIG. 3 ends.

If the predetermined standby time has not passed since the wireless connection was lost (NO in S72), the control unit 30 proceeds to S76. At S<b>76 , the control unit 30 monitors whether the wireless connection with the mobile terminal 100 is re-established. When wireless connection with portable terminal 100 is re-established by the user carrying portable terminal 100 approaching cooker 10 (YES in S76), control unit 30 returns to S60 and instructs to extinguish the fire. monitor again for receipt of Further, when the wireless connection with the mobile terminal 100 is not established (NO in S76), the control unit 30 returns to S72.

(Specific case when the distance between devices is 15 m or more; Fig. 4)
FIG. 4 shows a case where the distance between cooking device 10 and mobile terminal 100 becomes 15 m or more due to the user carrying mobile terminal 100 moving to a room away from the kitchen. For example, assume case A1 in which the user stays in a room away from the kitchen for a long time. In this case A1, it is determined that the distance between the devices is 15 m or more (YES in S20 of FIG. 2), and that the separation moving speed is less than the first threshold (NO in S22). Therefore, after the time is up (YES in S24), the mobile terminal 100 displays a warning screen and transmits a fire extinguishing instruction to the heating cooker 10 (S26).

According to case A1, the stove burner 12 is extinguished when the user carrying the portable terminal 100 moves away from the heating cooker 10 by 15 m or more. For example, when the user is 15 m or more away from the heating cooker 10, the user is moving to a room far from the kitchen, so the fire can be extinguished for safety. On the other hand, if the user is less than 15 m away from the cooker 10, the user may be temporarily away from the kitchen during stew cooking, for example. In this case, since the fire is not extinguished, it is possible to prevent the fire from being extinguished regardless of the user's intention (for example, intention to perform stewed cooking).

Also, for example, assume case A2 where the user moves further away from the room away from the kitchen. This case A2 indicates, for example, a situation in which the user forgets to use the heating cooker 10 and goes outdoors. In this case A2, it is determined that the distance between the devices is 15 m or more (YES in S20 of FIG. 2), and that the separation moving speed is greater than or equal to the first threshold (YES in S22). Therefore, the portable terminal 100 displays a warning screen and transmits a fire extinguishing instruction to the heating cooker 10 even before the time is up (S26).

According to case A2, the fire extinguishing instruction is transmitted to the heating cooker 10 at a timing earlier than the timing after the time up in case A1 (that is, the timing before the time up). As a result, even if the user forgets to use the heating cooker 10 and goes outdoors, the stove burner 12 can be extinguished quickly to ensure safety.

Here, in case A1, the user may return to the kitchen in a short period of time after moving to a room far from the kitchen. On the other hand, in case A2, the user is likely to go out and not return to the kitchen. In case A1, when the user returns to the kitchen before the time is up, the fire extinguishing instruction is not sent to the cooking device 10, so it is possible to prevent the fire from being extinguished regardless of the user's intention. Further, in case A2, the portable terminal 100 transmits the reduction instruction to the heating cooker 10 at the timing before the time is up, so that the stove burner 12 can be quickly extinguished for safety. In this case, since the user is likely to be out, the user's intention (that is, the intention that the fire may be extinguished) can be met. Further, by advancing the timing of transmitting the fire extinguishing instruction to the cooking device 10, it is possible to transmit the fire extinguishing command to the cooking device 10 before the wireless connection between the portable terminal 100 and the cooking device 10 is lost. can be made safer.

Also, for example, a situation is assumed in which the user slowly leaves the kitchen and moves outdoors. In this situation, the wireless connection is lost when the portable terminal 100 moves away from the cooker 10 to such a distance that the wireless connection cannot be maintained. When the wireless connection is lost (YES in S70 of FIG. 3) and a predetermined standby time has passed (YES in S72), the cooker 10 automatically extinguishes the stove burner 12 (S74). If the standby time has passed since the disappearance, the user may forget to use the heating cooker 10 and go out. In this case, the fire can be extinguished for safety. On the other hand, for example, the user may go out to attend to a guest, and the wireless connection may be lost. In this case, the user returns to the cooker 10 before the standby time elapses, so the wireless connection is established again and the fire is not extinguished. Therefore, it is possible to suppress the extinguishing regardless of the user's intention (for example, the intention to serve guests).

(Specific case when the distance between devices is 10 m or more and less than 15 m; Fig. 5)
FIG. 5 shows a case where the distance between cooking device 10 and portable terminal 100 becomes 10 m or more and less than 15 m due to the user carrying portable terminal 100 moving to a room away from the kitchen. For example, assume case B1 in which the user stays in a room away from the kitchen for a long time. In this case B1, it is determined that the distance between the devices is 10 m or more and less than 15 m (YES in S30 of FIG. 2), and that the separation moving speed is less than the second threshold (NO in S32). Therefore, the mobile terminal 100 displays the notification screen after the time is up (YES in S34). Thereby, the user can know that he or she is away from the heating cooker 10 even during ignition.

Also, for example, assume case B2 where the user moves further away from the room away from the kitchen. This case B2 shows, for example, a situation where the user forgets to use the heating cooker 10 and goes outdoors. In this case B2, it is determined that the inter-device distance is 10 m or more and less than 15 m (YES in S30 of FIG. 2), and that the separation moving speed is equal to or greater than the second threshold (YES in S32). Therefore, the portable terminal 100 displays a warning screen and transmits a fire extinguishing instruction to the heating cooker 10 (S26).

According to case B2, the fire extinguishing instruction is transmitted to the heating cooker 10 even if the distance between the devices is less than 15 m. As a result, even when the user forgets to use the heating cooker 10 and goes outdoors, the stove burner 12 is extinguished despite the distance between the devices being less than 15 m, thereby ensuring safety. can be planned.

(correspondence relationship)
The heating cooker 10 and the mobile terminal 100 are examples of the "heating device" and the "mobile terminal", respectively. 15 m in S20, the first threshold in S22, and the second threshold in S32 in FIG. 2 are examples of the "predetermined distance," the "first threshold," and the "second threshold," respectively. The fire extinguishing instruction in S26 is an example of the "reduction instruction". The waiting time of S72 in FIG. 3 is an example of the "first time". The timing after the timeout in case A1 in FIG. 4 is an example of the “first timing”. The timing before time up in case A2 in FIG. 4 is an example of the “second timing”.

Although each embodiment has been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. Modifications of each of the above embodiments are listed below.

(Modification 1) In the embodiment described above, the mobile terminal 100 transmits the fire extinguishing instruction to the heating cooker 10 (S26 in FIG. 2). Instead, the portable terminal 100 provides a reduction instruction including an instruction to weaken the heating power of the stove burner 12 and an instruction to extinguish the stove burner 12 after a predetermined time (for example, 1 minute) has elapsed since the heating power was lowered. may be sent to the heating cooker 10 . According to this modification, the heating power is weakened before the fire is extinguished, so that it is possible to ensure safety and prevent the cooking in progress from ending regardless of the user's intention. The instruction to weaken the heating power, the instruction to extinguish the fire, and the predetermined time are examples of the "instruction to reduce the amount of heating," the "instruction to stop heating," and the "second time."

(Modification 2) The "heating device" is not limited to a gas combustion stove, and may be, for example, an IH cooker, an electric oven, or a gas fan heater. For example, if the "heating device" is an IH cooker, the current flowing through the heating coil of the IH cooker is an example of the "heating amount."

(Modification 3) In the above embodiment, the mobile terminal 100 determines whether or not the inter-device distance is 15 m or more in S20 of FIG. Alternatively, the mobile terminal 100 may make a determination based on a distance shorter than 15 m (eg, 10 m) or a distance longer than 15 m (eg, 20 m). Along with this, the criteria for determination in S30 and S40 may also differ from the criteria in the embodiment. In this modified example, 10m or 20m is an example of the "predetermined distance". Also, the "predetermined distance" may be a value input by the user operating an application program (for example, program 134) of the mobile terminal.

(Modification 4) The determination of S22 in FIG. 2 may not be executed. In this modified example, the "second timing" can be omitted.

(Modification 5) The determination of S32 in FIG. 2 may not be executed. In this modified example, the "second threshold" can be omitted.

(Modification 6) The processes of S70 to S76 in FIG. 3 may not be executed.

(Modification 7) "Wireless connection" is not limited to wireless connection for executing BT communication. It may be a wireless connection for performing wireless communication according to the above.

2: heating system, 10: heating cooker, 12: stove burner, 14: operation unit, 16: display unit, 20: BTI / F, 30: control unit, 32: memory, 34: program, 100: mobile terminal, 116: display unit, 120: BTI/F, 130: control unit, 132: memory, 134: program

Claims (3)

A heating system comprising a heating device and a mobile terminal capable of establishing a wireless connection with the heating device,
The mobile terminal is
after the wireless connection is established, using the radio field intensity of the wireless connection to estimate the inter-device distance between the heating device and the mobile terminal;
The inter-device distance is equal to or greater than a predetermined distance, and the time-series data of the inter-device distance indicates that the portable terminal is separated from the heating device, and the inter-device distance is calculated from the time-series data of the inter-device distance. transmitting, at a first timing, a reduction instruction for reducing the amount of heating of the heating device to the heating device using the wireless connection when the moving speed of the mobile terminal is less than a first threshold;
The inter-device distance is equal to or greater than the predetermined distance, and the time-series data of the inter-device distance indicates that the mobile terminal is separated from the heating device, and the moving speed is equal to or greater than the first threshold. the reduction instruction is transmitted to the heating device at a second timing earlier than the first timing,
is configured as
The heating device
reducing the amount of heating according to the reduction instruction when the reduction instruction is received from the mobile terminal;
When the wireless connection is lost after the wireless connection is established, the amount of heating is reduced when a predetermined first time has passed since the loss, even if the reduction instruction is not received from the mobile terminal. is configured to
heating system. A heating system comprising a heating device and a mobile terminal capable of establishing a wireless connection with the heating device,
The mobile terminal is
after the wireless connection is established, using the radio field intensity of the wireless connection to estimate the inter-device distance between the heating device and the mobile terminal;
The inter-device distance is less than a predetermined distance, and the time-series data of the inter-device distance indicates that the mobile terminal is separated from the heating device, and the inter-device distance is calculated from the time-series data of the inter-device distance. not transmitting a reduction instruction for reducing the heating amount of the heating device to the heating device when the moving speed of the mobile terminal is less than a second threshold;
The inter-device distance is less than the predetermined distance, and the time-series data of the inter-device distance indicates that the portable terminal moves away from the heating device, and the moving speed is equal to or greater than the second threshold. using the wireless connection to transmit the reduction instruction to the heating device.
is configured as
The heating device
reducing the amount of heating according to the reduction instruction when the reduction instruction is received from the mobile terminal;
When the wireless connection is lost after the wireless connection is established, the amount of heating is reduced when a predetermined first time has passed since the loss, even if the reduction instruction is not received from the mobile terminal. is configured to
heating system. A computer program for a mobile terminal capable of establishing a wireless connection with a heating device,
Said computer program comprises:
after the wireless connection is established, using the radio field intensity of the wireless connection to estimate the inter-device distance between the heating device and the mobile terminal;
When the time-series data of the inter-device distance indicates that the mobile terminal is moving away from the heating device, according to the moving speed of the mobile terminal calculated from the time-series data of the inter-device distance, the A computer program configured to vary the timing of transmitting a reduction instruction for reducing the heating amount of a heating device to the heating device.

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