JP2019049383A - Heating system - Google Patents

Abstract

To provide a technology to increase a room temperature so that a user does not feel cold even though the user performs activities before a full-fledged heating operation start time.SOLUTION: When a pre-heating operation start time that a pre-heating operation is started comes, control means starts heating in a first heating mode, and activity detection means detects that a user has performed activities between the pre-heating operation start time and a full-fledged heating operation start time, the first heating mode is continued when the room temperature detected by the temperature detection means is a predetermined reference room temperature or higher, while the heating mode is switched from the first heating mode to a second heating mode when the room temperature detected by the temperature detection means is lower than the predetermined reference room temperature.SELECTED DRAWING: Figure 4

Description

  The technology disclosed herein relates to a heating system.

  The heating system disclosed in Patent Document 1 includes a heat pump that absorbs heat from the natural environment to heat the heat medium, a temperature detection unit that detects an indoor temperature, and a control unit. In this heating system, the room is heated by the heat of the heat medium heated by the heat pump. Further, the heating system is configured to perform a pre-heating operation and a main heating operation. The pre-heating operation is started at a predetermined pre-heating operation start time before the main heating operation start time when the main heating operation is scheduled to be started. The pre-heating operation is an operation for heating the room so that the room temperature detected by the temperature detection means becomes a predetermined target heating temperature at the main heating operation start time.

JP-A-6-42765

  In a room heated by the heating system, a user of the heating system lives, and the user may wake up in the room. In this case, a user sleeping in the room may get up before the main heating operation start time. In the pre-heating operation, the room is heated so as to reach a predetermined target heating temperature at the main heating operation start time, so when the user wakes up, the room temperature has not yet reached the target heating temperature and got up Users may feel cold. Alternatively, when the user sleeping in another room gets up and moves to a heated room before the main heating operation start time, the room temperature has not yet reached the target heating temperature, and the user is cold. You may feel Moreover, the user who went out may return home before the main heating operation start time. In this case, when the user returns home, the room temperature may not yet reach the target heating temperature, and the user who returned home may feel cold. Thus, the present specification provides a technology that can increase the room temperature so that the user does not feel cold even if the user is active before the main heating operation start time.

  The heating system disclosed in the present specification includes a heat pump that absorbs heat from the natural environment to heat the heat medium, an auxiliary heat source unit that heats the heat medium by fuel combustion, and a heater that heats the room by the heat of the heat medium. And temperature detection means for detecting the indoor temperature, activity detection means for detecting that the user has been activated, and control means. In this heating system, the first heating mode in which the heater heats the room by the heat of the heat medium heated only by the heat pump, the heat of the heat medium heated by both the heat pump and the auxiliary heat source machine, or It is possible to perform heating in the second heating mode in which the heater heats the room by the heat of the heat medium heated only by the auxiliary heat source unit having a heating capacity larger than that of the heat pump, and perform preheating operation and main heating operation Is configured. The pre-heating operation is started when a predetermined pre-heating operation start time before the main heating operation start time when the main heating operation is started is reached, and the room temperature detected by the temperature detection means is the main heating operation start time The heater heats the room to reach a predetermined target heating temperature. The main heating operation is an operation in which the heater heats the room such that the room temperature detected by the temperature detection means becomes a predetermined target heating temperature. The control means executes the pre-heating operation according to the first heating mode when the pre-heating operation start time comes, and the activity detection means indicates that the user has been active between the pre-heating operation start time and the main heating operation start time If the indoor temperature detected by the temperature detecting means is equal to or higher than a predetermined reference indoor temperature, the first heating mode is continued, and the indoor temperature detected by the temperature detecting means is a predetermined reference indoor When it is less than the temperature, the first heating mode is switched to the second heating mode.

  In the heating system that executes the preheating operation and the main heating operation, the room can be heated before the main heating operation start time by performing the preheating operation. However, before the main heating operation start time, the room may not be heated sufficiently and the room temperature may not be so high. According to the above-described heating system, when the user acts before the main heating operation start time, when the room temperature is less than the predetermined reference room temperature, the first heating mode is switched to the second heating mode. By this, the heat medium can be heated by both the heat pump and the auxiliary heat source unit, and the amount of heat for heating the room can be increased. Alternatively, in the case of an auxiliary heat source unit having a heating capacity larger than that of a heat pump, the heat medium can be heated only by the auxiliary heat source unit having a large heating capacity, and the amount of heat for heating the room can be increased. Therefore, even if the user is active before the main heating operation start time, the indoor temperature can be raised so that the user does not feel cold. In addition, when the room temperature is equal to or higher than the predetermined reference room temperature, the room is already sufficiently heated. Therefore, even if the first heating mode is continued, the user who is active is unlikely to feel cold. In this case, by continuing the first heating mode, the heat medium can be heated only by the heat pump, and energy efficiency can be increased.

  Further, in the above-described heating system, the activity detection means may be a wakeup detection means for detecting that the user has been activated by detecting that the sleeping user has got up. Further, the control means may calculate an estimated wake-up time based on a time when the wake-up detection means detects that the user has got up in the past, and may calculate the estimated wake-up time as the main heating operation start time.

  According to this configuration, since it is possible to heat the room toward the expected wake-up time (the main heating operation start time), it is possible to prevent the user who wakes up from feeling cold.

  In the heating system described above, the control means executes the main heating operation according to the first heating mode when the main heating operation start time comes, and detects that the user has been active after the main heating operation start time When the means detects that the room temperature detected by the temperature detection means is equal to or higher than a predetermined reference room temperature, the first heating mode is continued, and the room temperature detected by the temperature detection means is a predetermined reference When the temperature is lower than the room temperature, the first heating mode is switched to the second heating mode.

  For example, when the outside air temperature is lower than expected, the heating capacity of the heat pump in the pre-heating operation is insufficient, and the room temperature may not reach the target heating temperature even at the main heating operation start time. is there. Even in such a case, if the user is not yet active, it is preferable to continue the first heating mode to enhance energy efficiency. After that, when the user acts after the main heating operation start time, the user does not feel cold by switching from the first heating mode to the second heating mode when the indoor temperature is lower than the predetermined reference indoor temperature. Room temperature can be raised. Further, when the room temperature when the user is active is equal to or higher than a predetermined reference room temperature, energy efficiency can be increased by continuing the first heating mode.

  In the heating system described above, when the control means performs heating in the second heating mode, the room temperature detected by the temperature detection means becomes equal to or higher than a predetermined reference room temperature. The second heating mode is switched to the first heating mode.

  According to this configuration, energy efficiency can be increased by switching from the second heating mode to the first heating mode after the room is sufficiently warmed by the heating in the second heating mode.

  In the heating system described above, the main heating may be performed after the preheating operation is performed if the predicted outside air temperature outside the user's house at the main heating operation start time is lower than a predetermined reference outside air temperature. When the operation is performed and the predicted outside air temperature is equal to or higher than a predetermined reference outside air temperature, the main heating operation is performed without executing the pre-heating operation.

  If the predicted outside air temperature outside the user's house at the main heating operation start time is less than a predetermined reference outside air temperature, it is predicted that the room temperature is low. In this case, it is desirable to heat the room by the preheating operation. Therefore, by performing the main heating operation after performing the pre-heating operation in this case, it is possible to prevent the active user from feeling cold. On the other hand, when the predicted outside air temperature is equal to or higher than the predetermined reference outside air temperature, it is predicted that the room temperature is not so low, so the necessity of heating the room by the pre-heating operation is reduced. Therefore, energy consumption can be suppressed by executing the main heating operation without performing the pre-heating operation in this case.

It is a figure showing typically the composition of the heating system concerning an example. It is a figure showing typically the composition of the heating device concerning an example. It is a flow chart which shows heating operation processing concerning an example. It is a flow chart which shows heating operation processing concerning an example. It is a figure explaining the concrete case 1 realized by the heating system concerning an example. It is a figure explaining specific case 2 realized by a heating system concerning an example. It is a figure explaining the concrete case 3 realized by the heating system concerning an example.

  A heating system 2 according to an embodiment will be described with reference to the drawings. As shown in FIG. 1, the heating system 2 according to the embodiment includes a heating device 21 and a server 51 (an example of a control unit). The heating device 21 and the server 51 are connected via the Internet 101.

  The heating device 21 is installed at the home 91 of the user of the heating system 2. The heating device 21 is a device for heating the room 92 of the home 91. As shown in FIG. 2, the heating device 21 mainly includes a heat pump unit 4, a combustion unit 6 (an example of an auxiliary heat source unit), a heating terminal 8, a distribution valve 10, and a controller 12. The heating device 21 heats the heat medium in the heat pump unit 4 and / or the combustion unit 6 while circulating a heat medium (for example, water or antifreeze liquid) between the heat pump unit 4, the combustion unit 6 and the heating terminal 8, By radiating heat from the heat medium at the heating terminal 8, the room 92 (see FIG. 1) in which the heating terminal 8 is installed is heated. The heating terminal 8 is, for example, a heater that heats by heat radiation from a heat medium such as a floor heater, a bathroom dryer heater, and a fan controller.

  The heat pump unit 4 is interposed in the first heat medium heating path 14. The downstream end of the first heat medium heating passage 14 is connected to the upstream end of the second heat medium heating passage 16. The combustion unit 6 is interposed in the second heat medium heating passage 16. The downstream end of the second heat medium heating passage 16 is connected to the upstream end of the heat medium heat radiation passage 18. The heating terminal 8 is interposed in the heat medium radiation path 18. The downstream end of the heat medium heat radiation path 18 is connected to the upstream end of the first heat medium heating path 14. Further, a first heat medium bypass passage 20 is provided in parallel with the first heat medium heating passage 14. The upstream end of the first heat medium bypass passage 20 is connected to the downstream end of the heat medium heat radiation passage 18. The downstream end of the first heat medium bypass passage 20 is connected to the upstream end of the second heat medium heating passage 16. The distribution valve 10 is interposed at the connection point of the downstream end of the heat medium heat release passage 18, the upstream end of the first heat medium heating passage 14, and the upstream end of the first heat medium bypass passage 20. The distribution valve 10 is a kind of electrically operated three-way valve, and the flow rate of the heat medium flowing from the heat medium heat release passage 18 to the first heat medium heating passage 14 and the flow rate from the heat medium heat release passage 18 to the first heat medium bypass passage 20 The ratio of the flow rate of the heat medium can be adjusted.

  The heat pump unit 4 absorbs heat from the natural environment to heat the heat medium. The heat pump unit 4 includes a refrigerant circulation path 62 for circulating a refrigerant (for example, an HFC refrigerant such as R410A and a CO2 refrigerant such as R744), an evaporator 64, a blower fan 66, a compressor 68, and a condenser 30. , Expansion valve 32 is provided.

  The evaporator 64 is a gas-liquid heat exchanger that exchanges heat between the air blown by the blower fan 66 and the refrigerant in the refrigerant circulation path 62. The refrigerant in the low pressure low temperature liquid state after passing through the expansion valve 32 is supplied to the evaporator 64. The evaporator 64 heats the refrigerant by heat exchange between the refrigerant and the air. The refrigerant is vaporized by being heated and becomes a relatively high temperature, low pressure gaseous state.

  The compressor 68 pressurizes the relatively high temperature, low pressure gaseous refrigerant after passing through the evaporator 64. The compression of the refrigerant by the compressor 68 brings the refrigerant into a high-temperature, high-pressure gas state. The compressor 68 delivers the compressed high-temperature high-pressure gaseous refrigerant to the condenser 30.

  The high temperature / high pressure gaseous refrigerant sent from the compressor 68 is supplied to the condenser 30. The condenser 30 is a liquid-liquid heat exchanger that exchanges heat between the refrigerant in the refrigerant circulation path 62 and the heat medium in the first heat medium heating path 14. The refrigerant loses heat and condenses as a result of heat exchange in the condenser 30. As a result, the refrigerant is in a liquid state of relatively low temperature and high pressure.

  The expansion valve 32 is supplied with a refrigerant in a relatively low temperature and high pressure liquid state after passing through the condenser 30. The refrigerant is depressurized by passing through the expansion valve 32, and becomes a low-temperature low-pressure liquid state. That is, the expansion valve 32 functions as a pressure reducing mechanism that reduces the pressure of the refrigerant from the condenser 30. The refrigerant that has passed through the expansion valve 32 is sent to the evaporator 64 as described above.

  In the heat pump unit 4, when the blower fan 66 is driven and the compressor 68 is driven, the refrigerant in the refrigerant circulation path 62 circulates in the order of the evaporator 64, the compressor 68, the condenser 30, and the expansion valve 32, The heat is absorbed from the natural environment to the refrigerant in the evaporator 64 and the heat is dissipated from the refrigerant to the heat medium in the condenser 30. That is, the heat pump unit 4 heats the heat medium by heat exchange with the refrigerant in the condenser 30.

  The combustion unit 6 includes a heat medium circulation pump 34 and a gas combustor 36. The heat medium circulation pump 34 is interposed in the second heat medium heating passage 16. The gas combustor 36 includes a casing 38, a burner 40, and a blower fan 42. The burner 40 is housed inside the casing 38. The burner 40 burns a fuel gas such as a city gas or propane gas to generate a combustion gas. The second heat medium heating passage 16 inside the casing 38 is provided with a heat exchanger 16a that exchanges heat between the heat medium flowing inside and the combustion gas flowing outside. The blower fan 42 feeds combustion air into the inside of the casing 38 and discharges the flue gas from the inside of the casing 38. Although not shown, the combustion unit 6 further includes an igniter for igniting the burner 40, an open / close valve for opening and closing the fuel supply path for supplying the fuel gas to the burner 40, and opening of the fuel supply path for supplying the fuel gas to the burner 40. It has a flow rate adjustment valve etc. to adjust the degree. A heat medium temperature sensor 44 for detecting the temperature of the heat medium flowing into the combustion unit 6 is attached to the second heat medium heating passage 16.

  The controller 12 controls the operation of various components such as the heat pump unit 4 of the heating device 21, the combustion unit 6, and the distribution valve 10.

  The heating device 21 can execute the first heating operation and the second heating operation. The first heating operation is an operation in which the heating terminal 8 heats the room 92 by the heat of the heat medium heated only by the heat pump unit 4. The second heating operation is an operation in which the heating terminal 8 heats the room 92 by the heat of the heat medium heated by both the heat pump unit 4 and the combustion unit 6.

  Moreover, the heating apparatus 21 can perform a pre-heating operation and a main heating operation. The pre-heating operation is an operation in which the heating terminal 8 heats the room 92 prior to the main heating operation. The pre-heating operation is an operation that is started when a predetermined pre-heating operation start time before the main heating operation start time when the main heating operation is started is reached. The main heating operation is an operation in which the heating terminal 8 heats the room 92 after the pre-heating operation. The main heating operation is an operation that is started when a predetermined main heating operation start time after the pre-heating operation start time at which the pre-heating operation is started is reached. Further, as described later, even if the main heating operation start time is not reached, the main heating operation may be started when the user wakes up is detected. The pre-heating operation is performed first, and then the main heating operation is performed. In the pre-heating operation, the heating terminal 8 heats the room 92 so that the room temperature detected by the temperature sensor 24 (see FIG. 1) described later becomes a predetermined target heating temperature at the main heating operation start time. is there. The heating target temperature is the temperature of the indoor 92 which is the target in the heating operation when the heating device 21 performs the pre-heating operation or the main heating operation. The target heating temperature is, for example, 20 ° C. The target heating temperature is set by the user, for example. In addition to the pre-heating operation and the main heating operation, the heating device 21 may be configured to be capable of executing a hot water supply operation.

  As shown in FIG. 1, the heating device 21 is connected to the Internet 101 via a remote control 22 and a home gateway 23. The heating device 21, the remote control 22, and the home gateway 23 are disposed in the room 92 of the user. The remote control 22 is connected to the controller 12 of the heating device 21. The remote control 22 is a device capable of performing various settings related to the heating device 21. For example, the heating target temperature can be set by the remote control 22. The home gateway 23 is a device that relays communication between the remote control 22 and the Internet 101.

  Further, a temperature sensor 24 (an example of a temperature detecting means), a human sensor 25 (an example of an activity detecting means (an example of wake-up detecting means)) and an HEMS controller 26 are disposed in the room 92 of the user's home 91 . The temperature sensor 24 and the human sensor 25 are connected to the Internet 101 via the HEMS controller 26 and the home gateway 23.

  The temperature sensor 24 is a device that detects the temperature of the room 92 of the user. When the temperature sensor 24 detects the temperature of the room 92 of the user, information indicating the temperature is transmitted from the temperature sensor 24 to the server 51 via the Internet 101.

  The human sensor 25 is a device that senses a person (for example, a user of the heating system 2). The human sensor 25 can detect that a person (user) sleeping in the room 92 has got up. For example, when the human sensor 25 senses a person (user) for a predetermined time or more, the person (user) in the room 92 has got up. When the human sensor 25 senses a person (user), information indicating that is transmitted from the human sensor 25 to the server 51 via the Internet 101. The human sensor 25 is disposed, for example, next to the bed in which the user is sleeping, and senses the user when the user wakes up. The human sensor 25 can detect that a person (user) has been activated by detecting that the user has got up. If the user does not wake up, it can be determined that the user is not active.

  The HEMS controller 26 is a device capable of performing various settings regarding the temperature sensor 24 and the human sensor 25. The HEMS controller 26 can also manage the energy used in the room 92.

  The server 51 executes various information processing. Information processing executed by the server 51 will be described later.

  Next, a heating operation process performed by the heating system 2 will be described. As shown in FIG. 3, in step S11 of the heating operation process, the server 51 calculates the estimated wake-up time based on the past data. The expected wake-up time is the time when the user is expected to wake up. The estimated wake-up time is, for example, 7:00 am. The server 51 calculates the estimated wake-up time based on the time when the user got up in the past. The past data on the time when the user wakes up is stored in the server 51. For example, if the average wake-up time of the user over the past multiple days is 7:00 AM, the server 51 sets the wake-up estimated time to 7:00 AM.

  Subsequently, in step S12, the server 51 sets the main heating operation start time. The main heating operation start time is a time when the main heating operation is scheduled to start. The server 51 sets the estimated wake-up time (for example, 7:00 am) calculated in step S11 described above as the main heating operation start time.

  Subsequently, in step S13, the server 51 acquires predicted outside air temperature information. The predicted outside air temperature information is information indicating the predicted outside air temperature outside the home 91 of the user. The server 51 acquires the expected outside temperature information at the main heating operation start time. The server 51 acquires the expected air temperature information via the Internet 101. Alternatively, the server 51 may calculate the expected outside air temperature based on the past outside air temperature, and may have predicted outside air temperature information indicating the predicted outside air temperature calculated by itself.

  Subsequently, in step S14, the server 51 determines whether the predicted outside air temperature indicated by the predicted outside air temperature information acquired in step S13 is lower than the reference outside air temperature. An expected air temperature indicated by the expected air temperature information is, for example, 8 ° C. The reference outside air temperature is, for example, 10 ° C. If the predicted outside air temperature is less than the reference outside air temperature, the server 51 determines YES in step S14 and proceeds to step S15. On the other hand, if the predicted outside air temperature is not less than the reference outside air temperature, the server 51 determines that the result is NO and the process proceeds to step S41.

  In step S41 after determining NO in step S14, the server 51 determines whether the main heating operation start time (for example, 7:00 am) set in step S12 described above has come. If the main heating operation start time has come, the server 51 determines YES in step S41 and proceeds to step S22 described later. On the other hand, when the main heating operation start time has not arrived, the server 51 determines that the result is NO and stands by.

  In step S15 after determining YES in step S14 described above, the server 51 sets the pre-heating operation start time. The pre-heating operation start time is a time when the pre-heating operation is scheduled to be started. The pre-heating operation start time is a time that is a predetermined time before the main heating operation start time (that is, expected rising time) set in step S12 described above. The predetermined time is, for example, 30 minutes. The pre-heating operation start time is, for example, 6:30 am. The server 51 may calculate and set the pre-heating operation start time based on, for example, the structure of the user's home 91, the predicted outside air temperature, the heating capacity of the heating device 21, and the like.

  Subsequently, in step S16, the server 51 determines whether or not the pre-heating operation start time (for example, 6:30 am) set in step S15 described above has come. If the pre-heating operation start time has come, the server 51 determines YES in step S16 and proceeds to step S17. On the other hand, when the pre-heating operation start time has not arrived, the server 51 determines NO and stands by.

  Subsequently, in step S17, the server 51 instructs the heating device 21 to start the pre-heating operation. The server 51 instructs the heating device 21 to execute the pre-heating operation in the first heating operation. The server 51 transmits start instruction information of the pre-heating operation to the heating device 21 through the Internet 101. When the heating device 21 receives the start instruction information of the pre-heating operation, the heating device 21 starts the pre-heating operation by the first heating operation. The pre-heating operation is an operation of heating the room 92 so that the temperature of the room 92 becomes a predetermined target heating temperature at the main heating operation start time.

  Subsequently, in step S18, the server 51 instructs the heating device 21 to adjust the heating intensity in the pre-heating operation. The server 51 transmits heating intensity adjustment instruction information to the heating device 21 via the Internet 101. The heating device 21 adjusts the heating intensity upon receiving the adjustment instruction information of the heating intensity. The heating device 21 adjusts the heating intensity so that the temperature of the room 92 becomes a predetermined target heating temperature at the main heating operation start time (for example, 7:00 AM). The heating device 21 controls the operation of the heat pump unit 4 to adjust the heating intensity. The heating intensity in the pre-heating operation is adjusted based on, for example, the temperature difference between the current temperature of the indoor room 92 and the target heating temperature, and the time from the current time to the main heating operation start time.

  Subsequently, in step S19, the server 51 determines whether the main heating operation start time (for example, 7:00 am) set in step S12 described above has come. If the main heating operation start time has come, the server 51 determines YES in step S19 and proceeds to step S21. On the other hand, when the pre-heating operation start time has not arrived, the server 51 determines that the result is NO and proceeds to A (step S31 shown in FIG. 4).

  As shown in FIG. 4, in step S31 after determining NO in step S19, the server 51 determines whether the user sleeping in the room 92 of the user's home 91 has got up. For example, when the human sensor 25 disposed in the room 92 of the user senses the user for a predetermined time, it can be determined that the user has got up. If the user wakes up, the server 51 determines YES in step S31 and proceeds to step S32. On the other hand, when the user has not got up, the server 51 determines NO and returns to B (step S19 shown in FIG. 3).

  Subsequently, in step S32, the server 51 instructs the heating device 21 to end the pre-heating operation. The server 51 transmits the preheating operation end instruction information to the heating device 21 via the Internet 101. The heating device 21 ends the pre-heating operation upon receiving the pre-heating operation end instruction information.

  Subsequently, in step S33, the server 51 determines whether the detected indoor temperature is less than the reference indoor temperature. The detection room temperature is the temperature of the room 92 detected by the temperature sensor 24 disposed in the room 92. The reference indoor temperature is a temperature at which the user sleeping in the room 92 feels cold uncomfortable. The reference indoor temperature is, for example, 15 ° C. If the detected indoor temperature is less than the reference indoor temperature, the server 51 determines YES in step S33 and proceeds to step S34. On the other hand, if the detected indoor temperature is not less than the reference indoor temperature, the server 51 determines that the result is NO and proceeds to step S35.

  Subsequently, in step S34, the server 51 instructs the heating device 21 to start the second heating operation. The server 51 transmits the start instruction information of the second heating operation to the heating device 21 via the Internet 101. The heating device 21 starts the second heating operation when the start instruction information of the second heating operation is received. The second heating operation is an operation in which the heating terminal 8 heats the room 92 by the heat of the heat medium heated by both the heat pump unit 4 and the combustion unit 6. The second heating operation here is performed as a main heating operation. The main heating operation is an operation of heating the room 92 such that the temperature of the room 92 reaches a predetermined target heating temperature. The heating apparatus 21 switches to the main heating operation by the second heating operation when performing the pre-heating operation by the first heating operation.

  On the other hand, in step S35 after determining NO in step S33, the server 51 instructs the heating device 21 to start the first heating operation. The server 51 transmits the start instruction information of the first heating operation to the heating device 21 via the Internet 101. The heating device 21 starts the first heating operation when the start instruction information of the first heating operation is received. The first heating operation is an operation in which the heating terminal 8 heats the room 92 by the heat of the heat medium heated only by the heat pump unit 4. The first heating operation here is performed as a main heating operation. When the heating device 21 is performing the pre-heating operation by the first heating operation, the heating device 21 performs the main heating operation while continuing the first heating operation.

  Subsequently, in step S36, the server 51 instructs the heating device 21 to adjust the heating intensity in the first heating operation or the second heating operation. The server 51 transmits heating intensity adjustment instruction information to the heating device 21 via the Internet 101. Upon receiving the adjustment instruction information on the heating intensity, the heating device 21 adjusts the heating intensity in the main heating operation (the first heating operation or the second heating operation described above). The heating intensity in the main heating operation is adjusted based on, for example, the temperature difference between the current temperature of the indoor room 92 and the target heating temperature.

  The server 51 returns to step 33 after the process of step S36 is completed. Alternatively, when the power of the heating device 21 is turned off, the heating operation process may be ended.

  As shown in FIG. 3, in step S21 after the determination in step S19 is YES, the server 51 instructs the heating device 21 to end the pre-heating operation. The server 51 transmits the preheating operation end instruction information to the heating device 21 via the Internet 101. The heating device 21 ends the pre-heating operation upon receiving the pre-heating operation end instruction information.

  Subsequently, in step S22, the server 51 instructs the heating device 21 to start the main heating operation. The server 51 instructs the heating device 21 to execute the main heating operation in the first heating operation. The server 51 transmits start instruction information of the main heating operation to the heating device 21 through the Internet 101. The heating device 21 starts the main heating operation when receiving the start instruction information of the main heating operation. The heating device 21 starts the main heating operation by the first heating operation. When the heating device 21 is performing the pre-heating operation by the first heating operation, the heating device 21 performs the main heating operation while continuing the first heating operation.

  Subsequently, in step S23, the server 51 instructs the heating device 21 to adjust the heating intensity in the main heating operation. The server 51 transmits heating intensity adjustment instruction information to the heating device 21 via the Internet 101. The heating device 21 adjusts the heating intensity upon receiving the adjustment instruction information of the heating intensity.

  Subsequently, in step S24, the server 51 determines whether the user sleeping in the room 92 of the user's home 91 has got up. For example, when the human sensor 25 disposed in the room 92 of the user senses the user for a predetermined time, it can be determined that the user has got up. If the user wakes up, the server 51 determines YES in step S24 and proceeds to D (step S33 shown in FIG. 4). On the other hand, when the user has not got up, the server 51 determines that the result is NO and returns to step S23.

  The heating operation process described above is reset when the heating device 21 is powered off. Alternatively, the heating operation process is reset when a predetermined time (for example, 8:00 AM) arrives. The heating operation process performed by the heating system 2 has been described above.

  Next, an example of a specific case realized by the above heating system 2 will be described.

(Case 1: Fig. 5)
In Case 1, if the predicted outside air temperature is less than the reference outside air temperature (YES in step S14), and the pre-heating operation start time comes (YES in step S16), the server 51 causes the heating device 21 to perform the pre-heating operation. It instructs to start (step S17). The heating device 21 starts the pre-heating operation when the start instruction information of the pre-heating operation is received. As shown in FIG. 5, when the pre-heating operation start time (for example, 6:30) comes, the pre-heating operation by the first heating operation is started.

  Thereafter, if the user sleeping in the room 92 gets up before the main heating operation start time arrives (between the pre heating operation start time and the main heating operation start time) (NO in step S19, YES in step S31) And the server 51 instructs the heating device 21 to end the pre-heating operation (step S32). In this case, if the detected indoor temperature is less than the reference indoor temperature (YES in step S33), the server 51 instructs the heating device 21 to start the second heating operation instead of the first heating operation. (Step S34). The heating device 21 starts the second heating operation when the start instruction information of the second heating operation is received. As shown in FIG. 5, when the user wakes up before the main heating operation start time (for example, 7:00 AM) arrives (for example, 6:45 AM), the second heating operation is started. The second heating operation here is performed as a main heating operation.

  After that, when the detected indoor temperature is not lower than the reference indoor temperature (NO in step S33), the server 51 instructs the heating device 21 to start the first heating operation instead of the second heating operation (step S35) . The heating device 21 starts the first heating operation when the start instruction information of the first heating operation is received. As shown in FIG. 5, the first heating operation is started after the second heating operation. The first heating operation here is performed as a main heating operation.

(Case 2: Fig. 6)
As shown in FIG. 6, in Case 2, as in Case 1 above, when the pre-heating operation start time (for example, 6:30) comes, the pre-heating operation by the first heating operation is started.

  Thereafter, if the user sleeping in the room 92 gets up before the main heating operation start time arrives (between the pre heating operation start time and the main heating operation start time) (NO in step S19, YES in step S31) And the server 51 instructs the heating device 21 to end the pre-heating operation (step S32). Further, in this case, when the detected indoor temperature is not lower than the reference indoor temperature (NO in step S33), the server 51 instructs the heating device 21 to start the first heating operation (step S35). The heating device 21 starts the first heating operation when the start instruction information of the first heating operation is received. As shown in FIG. 5, even if the user gets up before the main heating operation start time (for example, 7:00 AM) arrives (for example, 6:30 AM), the first heating operation is continued. The first heating operation here is performed as a main heating operation.

(Case 3: Fig. 7)
As shown in FIG. 7, in Case 3, as in the case 1 and case 2 described above, when the pre-heating operation start time (for example, 6:30) comes, the pre-heating operation by the first heating operation is started.

  The pre-heating operation is an operation of heating the room 92 such that the temperature of the room 92 becomes the target heating temperature at the main heating operation start time. However, for example, when the outside air temperature becomes lower than expected, the heating capacity of the heat pump unit 4 is insufficient in the pre-heating operation, and the temperature of the room 92 reaches the target heating temperature even at the main heating operation start time. It may not reach. Even in such a case, when the user is not getting up, it is preferable to continue the first heating operation without switching to the second heating operation in order to enhance energy efficiency. Therefore, when the main heating operation start time comes (YES in step S19), the server 51 instructs the heating device 21 to start the main heating operation (step S22). The heating device 21 starts the main heating operation when receiving the start instruction information of the main heating operation. As shown in FIG. 7, when the main heating operation start time (for example, 7:00) comes, the main heating operation by the first heating operation is started.

  Thereafter, when the user sleeping in the room 92 wakes up (YES in step S24), if the detected indoor temperature is less than the reference indoor temperature (YES in step S33), the server 51 sends the first heating device 21 It instructs to start the second heating operation instead of the heating operation (step S34). The heating device 21 starts the second heating operation when the start instruction information of the second heating operation is received. As shown in FIG. 7, when the user wakes up after the main heating operation start time (for example, 7:00 AM) arrives (for example, 7:10 AM), the second heating operation is started.

  After that, when the detected indoor temperature is not lower than the reference indoor temperature (NO in step S33), the server 51 instructs the heating device 21 to start the first heating operation instead of the second heating operation (step S35) . The heating device 21 starts the first heating operation when the start instruction information of the first heating operation is received. As shown in FIG. 7, the first heating operation is started after the second heating operation.

  The 1st heating operation in the above-mentioned example is an example of heating in the 1st heating mode, and the 2nd heating operation is an example of heating in the 2nd heating mode.

  The heating system 2 according to the embodiment has been described above. As apparent from the above description, the heating system 2 includes a heat pump unit 4 which absorbs heat from the natural environment to heat the heat medium, a combustion unit 6 which heats the heat medium by combustion of the fuel, and a room of heat A heating terminal 8 for heating 92 is provided. The heating system 2 further includes a temperature sensor 24 for detecting the temperature of the room 92, a human sensor 25 for detecting that the user sleeping in the room 92 has got up, and a server 51. In the heating system 2, the heating terminal 8 heats the room 92 by the heat of the heat medium heated only by the heat pump unit 4, and the heat of the heat medium heated by both the heat pump unit 4 and the combustion unit 6. The heating terminal 8 can execute a second heating operation in which the room 92 is heated. Further, the heating system 2 is configured to execute a pre-heating operation and a main heating operation. The pre-heating operation is started at a predetermined pre-heating operation start time before the main heating operation start time when the main heating operation is started. The pre-heating operation is an operation in which the heating terminal 8 heats the room 92 so that the temperature of the room 92 detected by the temperature sensor 24 becomes a predetermined target heating temperature at the main heating operation start time. The main heating operation is an operation in which the heating terminal 8 heats the room 92 such that the temperature of the room 92 detected by the temperature sensor 24 becomes a predetermined target heating temperature. In this heating system 2, when the server 51 comes to the pre-heating operation start time at which the pre-heating operation is started, the server 51 executes the pre-heating operation by the first heating operation (see steps S16 and S17). When the human sensor 25 detects that the user has got up during the heating operation start time (see steps S19 and S31), if the temperature of the indoor 92 detected by the temperature sensor 24 is equal to or higher than a predetermined reference indoor temperature If the first heating operation is continued (see step S33) (see step S35) and the indoor temperature detected by the temperature detecting means is less than a predetermined reference indoor temperature (see step S33), the first heating operation is performed. It switches to the second heating operation (see step S34).

  Even if the pre-heating operation is started at the pre-heating operation start time, the room 92 may not be sufficiently heated before the main heating operation start time, and the temperature of the room 92 may not be so high. is there. Therefore, if the user wakes up before the main heating operation start time, there is a possibility that the user may feel cold. Therefore, in the heating system 2 described above, when the human detection sensor 25 detects that the user has got up (activity), if the temperature of the room 92 is less than a predetermined reference room temperature, the first heating operation is 2 Start heating operation. In the second heating operation, the heat medium is heated by both the heat pump unit 4 and the combustion unit 6, so the amount of heat for heating the room 92 can be increased. Thus, even if the user sleeping in the room 92 gets up before the main heating operation start time, the temperature of the room 92 can be raised so that the user who got up does not feel cold. That is, even if the user is active before the main heating operation start time, the temperature of the room 92 can be raised so that the user does not feel cold. On the other hand, when the temperature of the room 92 is equal to or higher than the predetermined reference room temperature, the room 92 is already sufficiently heated, so there is little possibility that the user who wakes up may feel cold even without switching to the second heating operation. In this case, the heat medium can be heated only by the heat pump unit 4 by continuing the first heating operation, and the energy efficiency can be increased.

  Further, in the heating system 2 described above, the server 51 calculates the estimated rising time based on the time when the human sensor 25 detects that the user has got up in the past, and the calculated estimated rising time is the main heating operation start time I assume.

  According to this configuration, since the room 92 can be heated by the pre-heating operation toward the expected wake-up time, the user who got up can be prevented from feeling cold.

  The server 51 executes the main heating operation by the first heating operation when the main heating operation start time comes (see steps S19 and S22), and the wakeup detection means detects that the user has got up after the main heating operation start time Then (see step S24), if the temperature of the room 92 detected by the temperature detection means is equal to or higher than the predetermined reference indoor temperature (see step S33), the first heating operation is continued (see step S35), and temperature detection is performed. If the temperature of the room 92 detected by the means is less than the predetermined reference room temperature (see step S33), the first heating operation is switched to the second heating operation (see step S34).

  For example, when the outside air temperature becomes lower than expected, the heating capacity of the heat pump unit 4 in the pre-heating operation runs short, and the temperature of the room 92 reaches the target heating temperature even at the main heating operation start time. It may not reach. Even in such a case, it is preferable to continue the first heating operation to enhance energy efficiency if the user has not yet got up and is sleeping in the room 92. Thereafter, when the user sleeping in the room 92 wakes up after the main heating operation start time, in the above configuration, if the temperature of the room 92 is lower than the predetermined reference indoor temperature, the first heating operation is replaced with the first heating operation. 2 Start heating operation. By this, the temperature of the room 92 can be raised so that the user who got up does not feel cold. In addition, when the temperature of the room 92 when the user wakes up is equal to or higher than a predetermined reference room temperature, energy efficiency can be increased by continuing the first heating operation.

  In addition, when the temperature of the room 92 detected by the temperature sensor 24 becomes equal to or higher than the predetermined reference indoor temperature after the server 51 starts the second heating operation (see step S33), the second heating operation is replaced. The first heating operation is started (see step S35).

  According to this configuration, after the room 92 is sufficiently heated by the second heating operation, the energy efficiency can be increased by starting the first heating operation instead of the second heating operation.

  Further, if the server 51 performs the pre-heating operation after the predicted outside air temperature is lower than the predetermined reference outside air temperature, the main heating operation is performed and the predicted outside air temperature is equal to or higher than the predetermined reference outside air temperature. The main heating operation is performed without performing the pre-heating operation (see steps S14 and S17).

  If the expected outside air temperature is lower than a predetermined reference outside air temperature, it is desirable to heat the room 92 by the preheating operation because it is expected that the room temperature is low. Therefore, in this case, by performing the main heating operation after performing the pre-heating operation, it is possible to prevent the user who got up from feeling cold. On the other hand, when the expected outside air temperature is equal to or higher than the predetermined reference outside air temperature, it is expected that the temperature of the room 92 is not so low, so the necessity of heating the room 92 by the preheating operation is reduced. Thus, in this case, energy consumption can be suppressed by executing the main heating operation without performing the pre-heating operation.

  As mentioned above, although one Example was described, a specific aspect is not limited to the said Example. In the following description, the same components as those in the above description will be assigned the same reference numerals and descriptions thereof will be omitted.

  Although the server 51 has been described as one example of the control means in the above embodiment, the present invention is not limited to this configuration, and another example of the control means is, for example, the remote controller 22, the HEMS controller 26, or a heating device 21 controllers 12 are mentioned. The remote control 22, the HEMS controller 26, or the controller 12 may execute the heating operation process described above.

  Further, the configuration of the wake-up detection unit for detecting that the person sleeping in the room 92 has got up is not particularly limited.

  Moreover, when the heating terminal 8 of the heating device 21 is a floor heater, the temperature of the room 92 may be the temperature of the floor surface. Further, the temperature sensor 24 may be provided in the remote control 22.

  In addition, the server 51 may accumulate and store the time when the human detection sensor 25 detects that the user has got up. For example, the server 51 may accumulate time information over the past one month.

  In the above embodiment, the preheating operation is performed when the predicted outside air temperature is lower than the reference outside air temperature in step S14, and the preheating operation is not performed when the predicted outside air temperature is equal to or higher than the reference outside air temperature. However, it is not limited to this configuration. In another embodiment, the preheating operation may always be performed regardless of the expected outside air temperature.

  Although the above embodiment has been described on the assumption that the main heating operation is started when the second heating operation is started in step S34 after steps S31, S32 and S33, the present invention is not limited to this configuration. In the embodiment, the main heating operation may not be started after the pre-heating operation is finished, but the first heating operation may be switched to the second heating operation during the pre-heating operation. In the above embodiment, the main heating operation is started when the first heating operation is started in step S35 after steps S31, S32, and S33. However, the present invention is not limited to this configuration. . In another embodiment, the first heating operation may be continued during the pre-heating operation instead of the end of the pre-heating operation and the start of the main heating operation.

  In the above embodiment, the human sensor 25 detects that the user sleeping in the room 92 has got up, and the heating device 21 heats the room 92 in which the user sleeps. However, it is not limited to this configuration. In another embodiment, the human sensor 25 may be disposed in a room different from the room 92, and may be configured to detect that the user sleeping in the room in another room wakes up. . That is, the room where the user detected by the human sensor 25 wakes up may be different from the room 92 where the heating device 21 heats. For example, the room in which the user wakes up may be in the bedroom, and the room 92 in which the heating device 21 heats may be in the living room. In this configuration, the server 51 executes the pre-heating operation by the first heating operation when the pre-heating operation start time comes, and between the pre-heating operation start time and the main heating operation start time, in the room different from the room 92 When the human detection sensor 25 detects that the user sleeping in the room gets up, the temperature of the room 92 (the room 92 different from the room in which the user sleeps) detected by the temperature sensor 24 is higher than a predetermined reference room temperature. In this case, the first heating operation is continued, and the temperature is switched from the first heating operation to the second heating operation when the temperature of the room 92 detected by the temperature sensor 24 is less than the predetermined reference indoor temperature.

  According to this configuration, the user sleeping in a room different from the room 92 where the heating device 21 heats gets up before the main heating operation start time, and moves to the room 92 where the heating device 21 heats Also, the temperature of the room 92 can be raised so that the user does not feel cold. That is, even if the user is active before the main heating operation start time, the temperature of the room 92 can be raised so that the user does not feel cold.

  In the above embodiment, the second heating operation is an operation in which the heating terminal 8 heats the room 92 by the heat of the heat medium heated by both the heat pump unit 4 and the combustion unit 6. However, it is not limited to this configuration. In another embodiment, the second heating operation may be an operation in which the heating terminal 8 heats the room 92 by the heat of the heat medium heated only by the combustion unit 6. The heating capacity of the combustion unit 6 in this case is larger than the heating capacity of the heat pump unit 4. The heating capacity can be determined, for example, based on the amount of heat that can be given to the heat medium per unit time.

  In the above embodiment, the human sensor 25 detects that the user sleeping in the room 92 has got up. However, it is not limited to this configuration. In another embodiment, the human sensor 25 may be configured to detect that the user who has gone out comes home. The human sensor 25 can detect that the user has been active by detecting that the user has returned home. If the user has not returned home, it can be determined that the user is not active. The human sensor 25 is an example of a return home detection unit that detects that the user who is out is home. The return home detection means is an example of the activity detection means.

  In the above embodiment, the server 51 calculates the estimated rising time based on the time when the rising detecting means (for example, the human sensor 25) detects that the user has got up in the past, and the calculated estimated rising time is the main heating Although it was set as the driving | operation start time, it is not limited to this structure. When the return home detection means is used as the activity detection means, another configuration may be employed. In this case, the server 51 calculates the estimated return time based on the time when the return detection means (the human sensor 25) detects that the user has returned home in the past, and the calculated estimated return time is the main heating operation start It may be time.

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

2: heating system 4: heat pump unit 6: combustion unit 8: heating terminal 21: heating device 22: remote control 23: home gateway 24: temperature sensor 25: human sensor 26: HEMS controller 36: gas burner 42: blower fan 44 : Heat medium temperature sensor 51: Server 91: Home 92: Room 101: Internet

Claims (5)

A heat pump that absorbs heat from the natural environment to heat the heat medium,
An auxiliary heat source unit that heats the heat medium by fuel combustion;
A heater that heats the room with the heat of the heat medium,
Temperature detection means for detecting the indoor temperature;
Activity detection means for detecting that the user has been active;
Equipped with control means,
The first heating mode in which the heater heats the room by the heat of the heat medium heated only by the heat pump, the heat of the heat medium heated by both the heat pump and the auxiliary heat source unit, or the heat capacity by the heat pump It is possible to heat in the second heating mode in which the heater heats the room by the heat of the heat medium heated only by the auxiliary heat source unit having a large
It is configured to perform a pre-heating operation and a main heating operation,
The pre-heating operation is started when a predetermined pre-heating operation start time before the main heating operation start time when the main heating operation is started is reached, and the room temperature detected by the temperature detection means is the main heating operation start time And the heater heats the room to reach a predetermined target heating temperature.
The main heating operation is an operation in which the heater heats the room such that the room temperature detected by the temperature detection means becomes a predetermined target heating temperature,
The control means executes the pre-heating operation according to the first heating mode when the pre-heating operation start time comes, and the activity detection means indicates that the user has been active between the pre-heating operation start time and the main heating operation start time If the indoor temperature detected by the temperature detecting means is equal to or higher than a predetermined reference indoor temperature, the first heating mode is continued, and the indoor temperature detected by the temperature detecting means is a predetermined reference indoor A heating system, which switches from the first heating mode to the second heating mode when the temperature is lower than the temperature. The activity detection means is a wakeup detection means for detecting that the user has been active by detecting that the user sleeping has got up,
The heating control start time according to claim 1, wherein the control means calculates an estimated wake-up time based on a time when the wake-up detection means detects that the user got up in the past, and calculates the estimated wake-up time as the main heating operation start time. Heating system.   The control means executes the main heating operation according to the first heating mode when the main heating operation start time comes, and when the activity detection means detects that the user has been activated after the main heating operation start time, the temperature detection If the room temperature detected by the means is equal to or higher than a predetermined reference room temperature, the first heating mode is continued, and if the room temperature detected by the temperature detection means is less than the predetermined reference room temperature, The heating system according to claim 1, wherein the first heating mode is switched to the second heating mode.   When the control unit is heating in the second heating mode, if the indoor temperature detected by the temperature detection unit becomes equal to or higher than a predetermined reference indoor temperature, the second heating mode is selected from the second heating mode. The heating system according to any one of claims 1 to 3, wherein the heating system is switched to a heating mode. If the predicted outside air temperature outside the user's house at the main heating operation start time is less than a predetermined reference outside air temperature, the control means executes the pre-heating operation and then executes the main heating operation, and the predicted outside air temperature The heating system according to any one of claims 1 to 4, wherein the main heating operation is performed without performing the pre-heating operation when the temperature is equal to or higher than a predetermined reference outside air temperature.

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