WO2016166846A1 - Remote controller for water heater - Google Patents

Remote controller for water heater Download PDF

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Publication number
WO2016166846A1
WO2016166846A1 PCT/JP2015/061604 JP2015061604W WO2016166846A1 WO 2016166846 A1 WO2016166846 A1 WO 2016166846A1 JP 2015061604 W JP2015061604 W JP 2015061604W WO 2016166846 A1 WO2016166846 A1 WO 2016166846A1
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WO
WIPO (PCT)
Prior art keywords
hot water
water storage
time
storage amount
amount
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Application number
PCT/JP2015/061604
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French (fr)
Japanese (ja)
Inventor
広嗣 友松
Original Assignee
三菱電機株式会社
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2015/061604 priority Critical patent/WO2016166846A1/en
Publication of WO2016166846A1 publication Critical patent/WO2016166846A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters

Definitions

  • the present invention relates to a remote controller for a water heater for operating a water heater.
  • Patent Literature 1 describes that a hot water heater remote controller (hereinafter referred to as “remote controller”) is operated to set a hot water heater operation pattern for each day of the week or each day.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a remote controller for a water heater that can prompt a user to set a water heater to realize energy saving.
  • the remote controller for a hot water heater determines whether or not surplus has occurred in at least one of the past hot water storage amount and hot water storage time from the transition of the past hot water storage amount of the water heater during a predetermined period.
  • a determination unit that identifies an energy saving point that is a surplus occurrence location
  • a display generation unit that generates a special graph indicating the energy saving point specified by the determination unit
  • a display generation unit A display unit for displaying a special graph.
  • the remote controller for a hot water heater of the present invention when it is determined that surplus has occurred in at least one of the past hot water storage amount and hot water storage time, a special graph indicating the energy saving point that is the surplus occurrence location is displayed.
  • the user can easily grasp the presence or absence of the energy saving point, and can prompt the user to set the water heater for realizing energy saving.
  • FIG. 1 is a schematic configuration diagram of a hot water supply system 100 according to an embodiment of the present invention.
  • a hot water supply system 100 according to the present embodiment includes a hot water heater 2 and a remote controller 1 for hot water heater for operating the water heater 2.
  • the hot water heater 2 is a hot water storage type hot water heater that stores hot water heated by the heat source unit 21 in a hot water storage tank 22.
  • the water heater 2 includes a heat source unit 21, a hot water storage tank 22, a water heater controller 23, and a water heater side communication unit 24.
  • the heat source unit 21 is a heating unit that raises and heats water to a target hot water storage temperature, and is a heat pump using, for example, CO 2 or HFC as a refrigerant.
  • the heat source part 21 is not limited to a heat pump, An electric heater etc. may be sufficient.
  • the hot water tank 22 is a sealed tank that stores hot water heated by the heat source unit 21.
  • the hot water tank 22 is provided with a plurality of temperature sensors 220 arranged at different heights.
  • the temperature detected by the temperature sensor 220 is output to the water heater controller 23.
  • the water heater controller 23 detects the amount of hot water stored in the hot water tank 22 based on the temperature detected by the temperature sensor 220.
  • the water heater control unit 23 is configured by a microcomputer or a DSP (Digital Signal Processor) and controls each part of the water heater 2. Specifically, the water heater control unit 23 can communicate with the water heater remote control 1 via the water heater side communication unit 24, and operates the heat source unit 21 according to the operation mode set by the water heater remote control 1. Control the stop. As the operation mode of the water heater controller 23, the hot water usage amount for the day is predicted from the past actual usage of hot water, and the hot water storage amount for the day is determined so as to satisfy the predicted usage amount.
  • DSP Digital Signal Processor
  • the water heater controller 23 transmits data related to the state of the water heater 2 to the water heater remote control 1 via the water heater side communication unit 24.
  • the data regarding the state of the water heater 2 includes an operation mode, a hot water storage amount, a hot water storage temperature, an operation state, and the like of the water heater 2.
  • the hot water heater side communication unit 24 is connected to the remote control side communication unit 14 of the remote controller 1 for hot water heater 1 via the transmission line 3 and transmits / receives data to / from the remote control side communication unit 14.
  • the water heater side communication unit 24 and the remote control side communication unit 14 may be configured to transmit and receive data by wireless communication.
  • the water heater remote control 1 is operated to select an operation mode of the water heater 2 or to set a schedule, and displays the operating state of the water heater 2 or the past hot water storage amount.
  • the water heater remote control 1 includes a display unit 11, an operation unit 12, a storage unit 13, a remote control side communication unit 14, and a remote control unit 15.
  • FIG. 2 is an external view of the water heater remote control 1. As shown in FIG. 2, a display unit 11 and an operation unit 12 are provided in front of the water heater remote control 1.
  • the display unit 11 is a dot matrix display panel such as a liquid crystal display.
  • the display unit 11 displays a screen representing the state of the water heater 2 or a screen for setting the water heater 2.
  • the operation unit 12 includes a plurality of function keys 121 corresponding to a plurality of functions or settings and a plurality of fixed keys 122 corresponding to unique functions.
  • Fixed key 122 includes an operation / stop key 122a, a determination key 122b, a return key 122c, and a menu key 122d.
  • Each key of the operation unit 12 includes a push button switch. The user can set the operation mode and schedule of the water heater 2 by operating the operation unit 12 while viewing the screen displayed on the display unit 11.
  • the storage unit 13 of the water heater remote control 1 is composed of a nonvolatile memory, and stores various data and programs used for display and control of the water heater remote control 1. Specifically, in the storage unit 13, data related to the state of the water heater 2 received in the past via the remote control side communication unit 14 is stored in association with the date and time when the data was acquired.
  • the remote controller side communication unit 14 is connected to the water heater side communication unit 24 of the water heater 2 via the transmission line 3 and transmits / receives data to / from the water heater side communication unit 24. Moreover, in this Embodiment, the hot water supply remote control 1 operate
  • FIG. 3 is a functional block diagram of the remote controller 15.
  • the remote control control unit 15 is constituted by a microcomputer or a DSP, and controls each part of the hot water supply remote control 1.
  • the remote control unit 15 includes an operation control unit 51, a display control unit 52, a display generation unit 53, and a determination unit 54.
  • the determination unit 54 includes a hot water storage time determination unit 541 and a hot water storage amount determination unit 542.
  • Each unit included in the remote control unit 15 is a program stored in a recording medium (not shown) such as a memory or a CD-ROM by a CPU (not shown) included in the remote control unit 15 as a functional unit realized by software. It is realized by executing. Or each said part may be implement
  • the operation control unit 51 determines the operation content input through the operation unit 12 and performs processing according to the operation content. Specifically, when setting such as the operation mode or schedule of the water heater 2 is input via the operation unit 12, the operation control unit 51 generates a control signal corresponding to the setting content, and the remote control side communication unit 14. To the hot water heater 2 via In addition, the operation control unit 51 stores the input setting content in the storage unit 13.
  • FIG. 4 is an example of the schedule of the water heater 2 set by the remote controller 1 for the water heater.
  • eight schedules are set for each day of the week.
  • Each pattern includes setting of time, hot water storage amount and hot water storage temperature.
  • the water heater 2 operates to achieve the set hot water storage amount and hot water storage temperature at the time set in the schedule.
  • the hot water storage amount is expressed by how much hot water is stored in the hot water tank 22. That is, when half of the hot water tank 22 is hot water, the hot water storage amount is 50%.
  • the operation control unit 51 when an instruction regarding display on the display unit 11 is input via the operation unit 12, the operation control unit 51 generates a control signal corresponding to the content of the instruction and transmits the control signal to the display control unit 52.
  • the display control unit 52 displays the display screen generated by the display generation unit 53 on the display unit 11 in accordance with a control signal from the operation control unit 51. Specifically, the display control unit 52 displays a screen for setting a schedule for the water heater 2 or a screen for displaying the hot water storage temperature of the water heater 2 according to a control signal from the operation control unit 51. To display. Furthermore, when the display of the past hot water storage amount of the water heater 2 is instructed via the operation unit 12, the display control unit 52 displays a graph representing the past actual hot water storage amount on the display unit 11. The instruction to display the past hot water storage amount is made by designating any past date or day of the week by the user.
  • FIG. 5 is an example of a normal graph representing the past hot water storage amount of the water heater 2.
  • the normal graph represents the transition of the hot water storage amount during a predetermined period, and is generated by the display generation unit 53 based on the past hot water storage amount of the water heater 2 stored in the storage unit 13.
  • the amount of hot water stored every hour from 0 o'clock to 23:00 is represented by a bar graph as the amount of hot water stored for a day specified by the user. .
  • the normal graph is not limited to FIG. 5, and various changes can be made.
  • the hot water storage amount from 12:00 to 11:00 on the next day may be displayed as one day, or the hot water storage amount may be displayed as a line graph.
  • a time of 24 hours or more or less than 24 hours may be set as one day.
  • the display control unit 52 displays a special graph different from the normal graph on the display unit 11.
  • the “energy saving point” is a portion where surplus has occurred in the past hot water storage amount or hot water storage time, and means energy saving can be realized by reducing the surplus.
  • the determination unit 54 Determination of whether there is an energy saving point in the past hot water storage amount is performed by the determination unit 54.
  • the determination part 54 determines the presence or absence of an energy saving point based on the transition of the past hot water storage amount displayed as a normal graph.
  • the determination unit 54 of the present embodiment has a hot water storage time determination unit 541 and a hot water storage amount determination unit 542, and is an energy saving point for “hot water storage time” and “hot water storage amount” in the past hot water storage amount of the water heater 2. It is determined whether or not there is.
  • the hot water storage time determination unit 541 determines whether or not a surplus of hot water storage time has occurred based on the transition of the amount of stored hot water in the past, and identifies a location where the surplus of hot water storage time has occurred.
  • FIG. 6 is a diagram for explaining the determination of excess hot water storage time in the hot water storage time determination unit 541 and the specification of the location where the surplus has occurred.
  • the water heater 2 if the heat insulation time is long in a state where hot water is stored up to the maximum amount, a large amount of heat is required for heat insulation. Therefore, it is desirable to store the maximum amount of hot water immediately before use, and to keep the heat retention time as short as possible.
  • the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred when the time when the amount of stored hot water has reached the maximum value continues for a predetermined time or more.
  • the maximum amount here is, for example, the hot water storage amount Q_set1 set in the schedule.
  • the hot water storage time determination unit 541 determines whether or not surplus has occurred in the hot water storage time based on the slope of the normal graph.
  • the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred when the slope of the hot water storage amount for each hour in the normal graph becomes flat from above.
  • the slope of the graph is the difference between the hot water storage amount Q (t) at one time and the hot water storage amount Q (t + 1) at the next time.
  • the hot water storage time determination unit 541 sets the time when the slope of the graph becomes flat from the upward direction as the first start time T_up_0 when the excessive hot water storage time occurs.
  • the first start time T_up_0 is 7:00.
  • the time when the slope is not flat is defined as a first end time T_up_1 at which the remaining hot water storage time ends.
  • the first end time T_up_1 is 10:00.
  • the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred when the time when the amount of stored hot water has reached the maximum amount continues for a predetermined time or more, and the first start time T_up_0 to the first time.
  • the part before the end time T_up_1 is specified as a place where the remaining hot water storage time has occurred (that is, an energy saving point).
  • the hot water storage amount determination unit 542 determines whether or not a surplus of the hot water storage amount has occurred based on the transition of the past hot water storage amount, and identifies the location where the surplus of the hot water storage amount has occurred.
  • FIG. 7 is a diagram for explaining the determination of the excess amount of the stored hot water and the identification of the location where the excess has occurred in the stored hot water amount determination unit 542.
  • the hot water storage amount determination unit 542 determines that there is a surplus in the hot water storage amount.
  • the “final hot water storage amount” is not limited to the hot water storage amount at the end of the day (23:00 in the case of FIG. 7), but just before the next boiling starts after the hot water storage amount starts to decrease. It refers to the amount of hot water stored.
  • the minimum amount of reserved hot water is the value of the minimum line of hot water storage, and is arbitrarily set between about 20 to 40%.
  • the hot water storage amount determination unit 542 determines whether or not surplus has occurred in the hot water storage amount based on the slope of the normal graph. Specifically, the hot water storage amount determination unit 542 acquires, as the final hot water storage amount Q_down, the hot water storage amount when the slope of the hot water storage amount for each hour in the normal graph is downward or flat, and compares it with the minimum reserved hot water amount Q_min. To do. When the final hot water storage amount Q_down is larger than the minimum reserved hot water amount Q_min, it is determined that there is a surplus in the hot water storage amount. Moreover, the hot water storage amount determination unit 542 sets the first time when the slope of the normal graph is downward as the second start time T_down_0 when the excess of the hot water storage occurs.
  • the second start time T_down_0 is 10:00.
  • the time when the slope of the normal graph is downward or flat and upward is defined as a second end time T_down_1 at which the remaining amount of hot water has ended.
  • the second end time T_down_1 is 22:00.
  • the second end time T_down_1 may be the last time of the day (23:00 in FIG. 7). .
  • the hot water storage amount determination unit 542 determines that an excess of the hot water storage amount has occurred when the final hot water storage amount Q_down immediately before the next boiling starts after the hot water storage amount starts decreasing is larger than the minimum reserved hot water amount Q_min.
  • the second start time T_down_0 to the second end time T_down_1 are specified as a location where the excess amount of hot water has occurred (that is, an energy saving point).
  • the determination unit 54 determines the past of the hot water heater 2.
  • the hot water storage amount is determined to have an energy saving point, and the determination result is transmitted to the display control unit 52.
  • FIG. 8 is an example of a special graph when the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred.
  • the special graph shown in FIG. 8 is generated by the display generation unit 53 based on the determination result and the specific result of the hot water storage time determination unit 541.
  • the display generation unit 53 generates a graph in which all of the energy saving points specified in the hot water storage time determination unit 541 are outlined from a normal graph representing the transition of the hot water storage amount in a predetermined period. To do. Specifically, the display generation unit 53 sets all the graphs in the time zone from the first start time T_up_0 to the first end time T_up_1 before being outlined.
  • FIG. 9 is an example of a special graph when the hot water storage amount determination unit 542 determines that a surplus of hot water storage has occurred.
  • the special graph illustrated in FIG. 9 is generated by the display generation unit 53 based on the determination result and the specific result of the hot water storage amount determination unit 542.
  • the display generation unit 53 includes a part of the energy saving point specified by the hot water storage amount determination unit 542 from the normal graph representing the transition of the hot water storage amount during a predetermined period. Generate a white graph.
  • the display generation unit 53 outlines a part of the graph of the time zone from the second start time T_down_0 to the second end time T_down_1.
  • generation part 53 determines the vertical vertical width according to the surplus hot water storage amount Q_eco.
  • the surplus hot water storage amount Q_eco is the surplus in the final hot water storage amount Q_down, and is obtained by subtracting the minimum reserved hot water amount Q_min from the final hot water storage amount Q_down.
  • FIG. 10 is an example of a special graph when the hot water storage time determination unit 541 determines that the hot water storage time surplus has occurred and the hot water storage amount determination unit 542 determines that the hot water storage amount surplus has occurred.
  • the special graph shown in FIG. 10 is generated by the display generation unit 53 based on the determination result and the specific result of the hot water storage time determination unit 541 and the hot water storage amount determination unit 542. As shown in FIG. 10, the display generation unit 53 highlights all of the energy saving points specified by the hot water storage time determination unit 541 and sets the energy saving points specified by the hot water storage amount determination unit 542 to the surplus hot water storage amount Q_eco. Corresponding white graph is generated.
  • the energy saving points are displayed in white, but the present invention is not limited to this.
  • the energy saving point may blink (flash), the energy saving point may be displayed larger (enlarged), or the energy saving point may be displayed lighter (dark).
  • the hot water remote controller 1 is in black and white display, it may be displayed in a striped pattern.
  • the display control unit 52 proposes a plan improvement plan for the selected energy saving point. It is displayed on the display unit 11.
  • FIG. 11 is a diagram for explaining selection of energy saving points.
  • the display control unit 52 displays the special graph generated by the display generation unit 53 on the display unit 11.
  • the display control part 52 displays the symbol P on the energy-saving point which can be selected in a special graph.
  • a black circle symbol P is displayed below the graph of the first start time T_up_0 and below the graph of the second start time T_down_0.
  • a cursor C is displayed below the symbol P.
  • the cursor C can be moved by operating the function key 121 of the operation unit 12. Note that the range in which the cursor C moves is only where the symbol P is displayed.
  • the operation control unit 51 determines that an energy saving point related to hot water storage time has been selected, and transmits a control signal to the display control unit 52. Further, when the symbol P below the graph of the second start time T_down_0 is selected, the operation control unit 51 determines that an energy saving point related to the hot water storage amount has been selected, and transmits a control signal to the display control unit 52. Then, the display control unit 52 displays a schedule improvement plan generated by the display generation unit 53 on the display unit 11 in accordance with a control signal from the operation control unit 51.
  • FIG. 12 is an example of a schedule improvement plan when an energy saving point related to hot water storage time is selected.
  • the schedule improvement plan in FIG. 12 includes an improvement plan for the “time” of the schedule in the past hot water storage amount of the water heater 2 displayed.
  • the display generation unit 53 proposes a schedule improvement plan that proposes changing the “time” in the schedule from the first start time T_up_0 specified by the hot water storage time determination unit 541 to the first end time T_up_1.
  • an improvement plan for changing the time of Pattern 2 on Tuesday from 7:00 (T_up_0) to 10:00 (T_up_1) is displayed.
  • FIG. 13 is an example of a schedule improvement plan when an energy saving point related to the amount of stored hot water is selected.
  • the schedule improvement plan of FIG. 13 includes an improvement plan of the “hot water storage amount” of the schedule in the past hot water storage amount of the displayed hot water heater 2.
  • the display generation unit 53 generates a display for proposing changing the “hot water storage amount (Q_set1)” of the currently set schedule to the energy saving hot water storage amount Q_set2 as a schedule improvement plan.
  • the energy saving hot water storage amount Q_set2 is obtained by subtracting the surplus hot water storage amount Q_eco from the hot water storage amount Q_set1 set in the current schedule.
  • an improvement plan for changing the hot water storage amount of Pattern 2 on Tuesday from 100% (Q_set1) to 70% (Q_set2) is displayed.
  • FIG. 14 is a flowchart showing a display process when a display of the past hot water storage amount of the water heater 2 is instructed.
  • the energy-saving determination process by the determination part 54 is performed (S1).
  • S2 the energy saving flag described later is 1, it is determined that there is an energy saving point, and when the energy saving flag is 0, it is determined that there is no energy saving point.
  • S2: NO the display control unit 52 displays the normal graph shown in FIG. 5 on the display unit 11 (S3).
  • it is determined whether or not to end the display (S4) If the display is not ended (S4: NO), the process returns to step S3 to continue displaying the normal graph.
  • the display is to be ended (S4: YES)
  • this process is ended.
  • step S2 If there is an energy saving point (S2: YES), a special graph as shown in FIG. 8, 9, or 10 is generated by the display generation unit 53 and displayed on the display unit 11 (S5). And it is judged whether the energy-saving point was selected (S6). If no energy saving point has been selected (S6: NO), the process proceeds to step S10. On the other hand, when the energy saving point is selected (S6: YES), it is determined whether or not the energy saving point related to the hot water storage time is selected (S7). And when the energy saving point regarding hot water storage time is selected (S7: YES), the schedule production
  • FIG. 15 is a flowchart showing the energy saving determination process.
  • the past hot water storage amount for one day is the hot water storage amount per hour from time n to time m.
  • the energy saving flag is set to 0 (S11), and the variable time t is set to n (S12).
  • the energy saving flag indicates whether there is an energy saving point, and is stored in the storage unit 13.
  • the slope K is obtained from the normal graph (S13).
  • the slope K is the difference between the hot water storage amount Q (t) at time t and the hot water storage amount Q (t + 1) at time t + 1.
  • it is determined whether or not the slope K is 0 (S14).
  • the hot water storage time determination unit 541 performs hot water storage time determination processing (S18).
  • the hot water storage amount determination unit 542 performs hot water storage amount determination processing (S19).
  • FIG. 16 is a flowchart showing hot water storage time determination processing.
  • 1 is added to the time t (S101).
  • the slope K is obtained (S102), and it is determined whether or not the slope K is greater than 0 (S103). If the slope K is greater than 0 (S103: YES), 1 is added to the time t (S104). Then, it is determined whether or not the time t is N or more (S105). If the time t is less than N (S105: NO), the process returns to step S102 and the subsequent processing is repeated. On the other hand, when the time t is equal to or longer than N (S105: YES), this process is terminated and the process returns to the energy saving determination process of FIG.
  • step S103 if the slope K is 0 or less in step S103 (S103: NO), it is determined whether or not the slope K is 0 (S106). If the slope K is 0 (S106: YES), the energy saving flag is set to 1 (S107). Here, since the slope of the graph has become flat from above, it is determined that a surplus has occurred in the hot water storage time. Then, the time t is set as the first start time T_up_0 (S108).
  • time t is N or more (S110). If the time t is less than N (S110: NO), the slope K is obtained (S111), and it is determined whether the slope K is 0 (S112). If the slope K is 0 (S112: YES), the process returns to step S109 and the subsequent processing is repeated. On the other hand, when the slope K is not 0 (S112: NO), the time t is set as the first end time T_up_1 (S113). Thereafter, this process is terminated, and the process returns to the energy saving determination process of FIG.
  • step S110 when the time t is N or more in step S110 (S110: YES), the time t is set as the first end time T_up_1 (S114). That is, in this case, the first end time T_up_1 is the final time N for one day. Thereafter, this process is terminated, and the process returns to the energy saving determination process of FIG.
  • FIG. 17 is a flowchart showing a hot water storage amount determination process.
  • the time t is set to the second start time T_down_0 (S201).
  • 1 is added to the time t (S202), and the slope K is obtained (S203).
  • S204 when the slope K is 0 or less (S204: NO), that is, when the slope is downward or flat, 1 is added to the time t (S205).
  • S206 it is determined whether or not the time t is N or more (S206). If the time t is less than N (S206: NO), the process returns to step S203 and the subsequent processing is repeated.
  • the time t is set as the second end time T_down_1 ( S207).
  • the hot water storage amount Q (t) at time t is set as the final hot water storage amount Q_down (S208).
  • the energy saving flag is set to 1 (S210), and this process is terminated and the energy saving determination process of FIG. Return. That is, when the final hot water storage amount Q_down when the slope of the graph is downward or flat is upward is greater than the minimum reserved hot water amount Q_min, it is determined that there is an excess in the hot water storage amount. On the other hand, when the difference between the final hot water storage amount Q_down and the minimum reserved hot water amount Q_min is 0 or less (S209: NO), this process is terminated without changing the energy saving flag, and the process returns to the energy saving determination process of FIG.
  • step S15 when the hot water storage time determination process in step S18 or the hot water storage amount determination process in step S19 ends, the process proceeds to step S15, and 1 is added to the time t (S15). Then, it is determined whether or not the time t is equal to or greater than N. If the time t is smaller than N (S16: NO), the process returns to step S13, and the subsequent processing is repeated. On the other hand, when the time t becomes N or more (S16: YES), this process is terminated.
  • the special graph indicating the energy saving point is displayed, so that the user can determine which of the past hot water storage amounts. It is possible to grasp whether waste is generated in the portion. Thereby, it is possible to prompt the user to change the schedule for realizing energy saving. As a result, the water heater 2 can be operated efficiently, and power consumption can be reduced.
  • the determination part 54 determines with the hot water storage time determination part 541 having determined that the surplus has generate
  • the hot water storage time determination unit 541 sets the time when the past hot water storage amount first becomes the maximum value as the first start time T_up_0, and the time when the past hot water storage amount finally reaches the maximum value as the first end time T_up_1.
  • the display unit 11 indicates a time zone from the first start time T_up_0 to the first end time T_up_1 as an energy saving point. Thereby, it is possible to determine the waste of the heat retention time in the past operation of the water heater 2 and specify the location where the waste occurs.
  • the special graph includes a graph indicating the transition of the past hot water storage amount of the water heater 2 in a predetermined period
  • the display generation unit 53 includes a first graph from the first start time T_up_0 to the first end time T_up_1 before the special graph.
  • the display of the graph up to the time of is different from the display of the graph at other times.
  • the determination unit 54 when the final hot water storage amount Q_down immediately before the next boiling starts after the hot water storage amount decreases in a predetermined period is larger than the predetermined minimum secured hot water amount Q_min, It has the hot water storage amount determination part 542 which determines with the surplus having generate
  • the display generating unit 53 indicates the surplus amount of hot water stored (the surplus hot water storage amount Q_eco) obtained by subtracting the minimum reserved hot water amount Q_min from the final hot water storage amount Q_down in the special graph. Thereby, the surplus of the amount of hot water storage can be grasped
  • the remote controller 1 for the hot water heater further includes an operation unit 12 operated by the user, and the display generation unit 53 further improves the schedule related to the operation of the water heater 2 based on the energy saving point specified by the determination unit 54. Generate a draft. Then, the display unit 11 displays a schedule improvement plan according to the operation of the operation unit 12. Thereby, it is possible to notify the user of how energy saving can be realized by specifically changing the schedule, and the user can set an optimal schedule.
  • the hot water supply system 100 is not limited to the configuration of FIG. 1, and may be configured to include a plurality of hot water heaters 2 and a plurality of hot water heater remote controls 1.
  • the display data generated by the display generation unit 53 may be transmitted to another display device connected to the remote controller 1 for hot water heater, and the normal graph, the special graph, the schedule improvement plan, and the like may be displayed on the display device. .
  • the schedule improvement plan in the above embodiment other information related to the schedule change may be displayed together.
  • other information for example, there is information such as how much electricity cost can be obtained by changing the schedule.
  • the said embodiment determines the presence or absence of an energy-saving point based on transition of the hot water storage amount for the past 1 day of the water heater 2, it is not limited to 1 day, and is arbitrary. Period can be set.
  • the hot water storage amount per hour is represented by a bar graph, but it may represent the hot water storage amount of less than one hour or more than one hour.

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  • Thermal Sciences (AREA)
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  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

A remote controller for a water heater, comprising: a determining unit for determining, from the changes in the amount of hot water stored in the water heater device in the past during a predefined period, whether or not a surplus has been generated in the hot water storage time and/or the amount of hot water stored in the past, and specifying, if a surplus has been generated, an energy-saving point that is the location at which the surplus has been generated; a display generator for generating a special graph indicating the energy-saving point specified by the determining unit; and a display for displaying the special graph generated by the display generator.

Description

給湯機用リモコンRemote control for water heater
　本発明は、給湯機を操作するための給湯機用リモコンに関する。 The present invention relates to a remote controller for a water heater for operating a water heater.
　従来、ヒートポンプなどで加熱された温水を貯湯槽に蓄える貯湯式給湯機が知られている。また、貯湯式給湯機において、ユーザにより設定された時間、貯湯量および貯湯温度に応じて運転を行うことも知られている。例えば、特許文献１には、給湯機のリモートコントローラ（以下、「リモコン」という）を操作して、曜日または日毎の給湯機の運転パターンを設定することが記載されている。 Conventionally, a hot water storage type water heater that stores hot water heated by a heat pump or the like in a hot water storage tank is known. In addition, it is also known that a hot water storage type water heater is operated according to a time, a hot water storage amount, and a hot water storage temperature set by a user. For example, Patent Literature 1 describes that a hot water heater remote controller (hereinafter referred to as “remote controller”) is operated to set a hot water heater operation pattern for each day of the week or each day.
特開２００９－３６４８９号公報JP 2009-36489 A
　ここで、給湯機の運転パターンを設定する際には、必要最低限の温水を効率よく生成し、省エネを実現することが望まれる。ここで、特許文献１に記載されるリモコンでは、貯湯量の過去の実績がグラフで表示される。しかしながら、貯湯量の過去の実績を見た場合も、貯湯量のどの部分に無駄が生じ、省エネを実現するためにどのような運転パターンにすればよいかをユーザが判断するのは困難である。 Here, when setting the operation pattern of the water heater, it is desirable to efficiently generate the minimum necessary hot water and realize energy saving. Here, in the remote control described in Patent Document 1, the past results of the hot water storage amount are displayed in a graph. However, even when looking at past results of hot water storage, it is difficult for the user to determine which part of the hot water storage is wasted and what operation pattern should be used to achieve energy saving. .
　本発明は上記の課題を解決するためになされたもので、省エネを実現するための給湯機の設定をユーザに促すことができる給湯機用リモコンを提供することを目的とする。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a remote controller for a water heater that can prompt a user to set a water heater to realize energy saving.
　本発明に係る給湯機用リモコンは、予め定められた期間における給湯機の過去の貯湯量の推移から、過去の貯湯量および貯湯時間の少なくとも一つに余剰が発生したか否かを判定するとともに、余剰が発生した場合に、余剰の発生箇所である省エネポイントを特定する判定部と、判定部によって特定された省エネポイントを示す特殊グラフを生成する表示生成部と、表示生成部によって生成された特殊グラフを表示する表示部と、を備える。 The remote controller for a hot water heater according to the present invention determines whether or not surplus has occurred in at least one of the past hot water storage amount and hot water storage time from the transition of the past hot water storage amount of the water heater during a predetermined period. When a surplus occurs, a determination unit that identifies an energy saving point that is a surplus occurrence location, a display generation unit that generates a special graph indicating the energy saving point specified by the determination unit, and a display generation unit A display unit for displaying a special graph.
　本発明の給湯機用リモコンによれば、過去の貯湯量および貯湯時間の少なくとも一つに余剰が発生したと判定された場合に、余剰の発生箇所である省エネポイントを示す特殊グラフが表示されることで、ユーザが省エネポイントの有無を容易に把握することができ、省エネを実現するための給湯機の設定をユーザに促すことができる。 According to the remote controller for a hot water heater of the present invention, when it is determined that surplus has occurred in at least one of the past hot water storage amount and hot water storage time, a special graph indicating the energy saving point that is the surplus occurrence location is displayed. Thus, the user can easily grasp the presence or absence of the energy saving point, and can prompt the user to set the water heater for realizing energy saving.
本発明の実施の形態における給湯システムの概略構成図である。It is a schematic structure figure of the hot-water supply system in an embodiment of the invention. 本発明の実施の形態における給湯機用リモコンの外観図である。It is an external view of the remote controller for water heaters in the embodiment of the present invention. 本発明の実施の形態におけるリモコン制御部の機能ブロック図である。It is a functional block diagram of the remote control part in the embodiment of the present invention. 本発明の実施の形態における給湯機用リモコンで設定される給湯機のスケジュールの例である。It is an example of the schedule of the water heater set with the remote controller for water heaters in embodiment of this invention. 本発明の実施の形態における給湯機の過去の貯湯量を表す通常グラフの一例である。It is an example of the normal graph showing the past hot water storage amount of the water heater in embodiment of this invention. 本発明の実施の形態の貯湯時間判定部における貯湯時間の余剰の判定および余剰が発生した箇所の特定を説明する図である。It is a figure explaining the determination of the excess of the hot water storage time in the hot water storage time determination part of embodiment of this invention, and the location which the surplus generate | occur | produced. 本発明の実施の形態の貯湯量判定部における貯湯量の余剰の判定および余剰が発生した箇所の特定を説明する図である。It is a figure explaining the determination of the surplus of the hot water storage amount in the hot water storage amount determination part of embodiment of this invention, and specification of the location where surplus generate | occur | produced. 本発明の実施の形態における貯湯時間判定部で貯湯時間の余剰が発生したと判定された場合の特殊グラフの一例である。It is an example of the special graph at the time of determining with the hot water storage time excess part having generate | occur | produced in the hot water storage time determination part in embodiment of this invention. 本発明の実施の形態における貯湯量判定部で貯湯量の余剰が発生したと判定された場合の特殊グラフの一例である。It is an example of the special graph at the time of determining with the hot water storage amount determination part in embodiment of this invention having generated the excess of the hot water storage amount. 本発明の実施の形態における貯湯時間判定部で貯湯時間の余剰が発生したと判定されたとともに、貯湯量判定部で貯湯量の余剰が発生したと判定された場合の特殊グラフの一例である。It is an example of the special graph when it is determined that the hot water storage time surplus has occurred in the hot water storage time determination unit according to the embodiment of the present invention and the hot water storage amount determination unit determines that the hot water storage surplus has occurred. 本発明の実施の形態における省エネポイントの選択を説明する図である。It is a figure explaining selection of the energy-saving point in an embodiment of the invention. 本発明の実施の形態における貯湯時間に関する省エネポイントが選択された場合のスケジュール改善案の一例である。It is an example of the schedule improvement plan when the energy-saving point regarding the hot water storage time in embodiment of this invention is selected. 本発明の実施の形態における貯湯量に関する省エネポイントが選択された場合のスケジュール改善案の一例である。It is an example of the schedule improvement plan when the energy-saving point regarding the amount of hot water storage in embodiment of this invention is selected. 本発明の実施の形態における給湯機の過去の貯湯量の表示が指示された場合の表示処理を示すフローチャートである。It is a flowchart which shows the display process when the display of the past hot water storage amount of the water heater in embodiment of this invention is instruct | indicated. 本発明の実施の形態における省エネ判定処理を示すフローチャートである。It is a flowchart which shows the energy-saving determination process in embodiment of this invention. 本発明の実施の形態における貯湯時間判定処理を示すフローチャートである。It is a flowchart which shows the hot water storage time determination process in embodiment of this invention. 本発明の実施の形態における貯湯量判定処理を示すフローチャートである。It is a flowchart which shows the hot water storage amount determination process in embodiment of this invention.
　以下に、本発明における給湯機用リモコンの実施の形態を図面に基づいて詳細に説明する。図１は、本発明の実施の形態における給湯システム１００の概略構成図である。本実施の形態の給湯システム１００は、給湯機２と、給湯機２を操作するための給湯機用リモコン１とを備える。 Hereinafter, embodiments of a remote controller for a water heater in the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram of a hot water supply system 100 according to an embodiment of the present invention. A hot water supply system 100 according to the present embodiment includes a hot water heater 2 and a remote controller 1 for hot water heater for operating the water heater 2.
　給湯機２は、熱源部２１によって加熱された温水を貯湯槽２２に溜める貯湯式給湯機である。図１に示すように、給湯機２は、熱源部２１と、貯湯槽２２と、給湯機制御部２３と、給湯機側通信部２４とを備える。熱源部２１は、水を目標の貯湯温度まで昇温加熱する加熱手段であり、例えばＣＯ２またはＨＦＣなどを冷媒としたヒートポンプである。なお、熱源部２１は、ヒートポンプに限定されるものではなく、電気ヒーターなどでもよい。 The hot water heater 2 is a hot water storage type hot water heater that stores hot water heated by the heat source unit 21 in a hot water storage tank 22. As shown in FIG. 1, the water heater 2 includes a heat source unit 21, a hot water storage tank 22, a water heater controller 23, and a water heater side communication unit 24. The heat source unit 21 is a heating unit that raises and heats water to a target hot water storage temperature, and is a heat pump using, for example, CO 2 or HFC as a refrigerant. In addition, the heat source part 21 is not limited to a heat pump, An electric heater etc. may be sufficient.
　貯湯槽２２は、熱源部２１によって加熱された温水を貯湯する密閉型のタンクである。貯湯槽２２には、異なる高さに配置された複数の温度センサ２２０が設けられる。温度センサ２２０による検知温度は、給湯機制御部２３に出力される。給湯機制御部２３は、温度センサ２２０の検知温度に基づいて、貯湯槽２２内の貯湯量を検出する。 The hot water tank 22 is a sealed tank that stores hot water heated by the heat source unit 21. The hot water tank 22 is provided with a plurality of temperature sensors 220 arranged at different heights. The temperature detected by the temperature sensor 220 is output to the water heater controller 23. The water heater controller 23 detects the amount of hot water stored in the hot water tank 22 based on the temperature detected by the temperature sensor 220.
　給湯機制御部２３は、マイクロコンピュータまたはＤＳＰ（Digital Signal Processor）などで構成され、給湯機２の各部を制御する。詳しくは、給湯機制御部２３は、給湯機側通信部２４を介して給湯機用リモコン１と通信可能であり、給湯機用リモコン１によって設定された運転モードに応じて熱源部２１の運転および停止を制御する。給湯機制御部２３の運転モードとしては、過去のお湯の使用量の実績から当日分のお湯の使用量を予測し、予測した使用量を満たすように当日分の貯湯量を決定して運転を行う「おまかせモード」、「おまかせモード」よりも多めに貯湯量を設定して運転を行う「多めモード」、およびユーザによって設定されたスケジューに応じて運転を行う「スケジュールモード」などがある。 The water heater control unit 23 is configured by a microcomputer or a DSP (Digital Signal Processor) and controls each part of the water heater 2. Specifically, the water heater control unit 23 can communicate with the water heater remote control 1 via the water heater side communication unit 24, and operates the heat source unit 21 according to the operation mode set by the water heater remote control 1. Control the stop. As the operation mode of the water heater controller 23, the hot water usage amount for the day is predicted from the past actual usage of hot water, and the hot water storage amount for the day is determined so as to satisfy the predicted usage amount. There are “Omakase mode” to be performed, “High mode” in which the operation is performed with the hot water storage amount set larger than “Omakase mode”, and “Schedule mode” in which the operation is performed according to the schedule set by the user.
　また、給湯機制御部２３は、給湯機２の状態に関するデータを、給湯機側通信部２４を介して給湯機用リモコン１に送信する。給湯機２の状態に関するデータは、給湯機２の運転モード、貯湯量、貯湯温度および運転状態などを含む。給湯機側通信部２４は、給湯機用リモコン１のリモコン側通信部１４と伝送線３で接続され、リモコン側通信部１４とデータの送受信を行う。なお、給湯機側通信部２４とリモコン側通信部１４とは、無線通信によってデータを送受信する構成としてもよい。 Further, the water heater controller 23 transmits data related to the state of the water heater 2 to the water heater remote control 1 via the water heater side communication unit 24. The data regarding the state of the water heater 2 includes an operation mode, a hot water storage amount, a hot water storage temperature, an operation state, and the like of the water heater 2. The hot water heater side communication unit 24 is connected to the remote control side communication unit 14 of the remote controller 1 for hot water heater 1 via the transmission line 3 and transmits / receives data to / from the remote control side communication unit 14. Note that the water heater side communication unit 24 and the remote control side communication unit 14 may be configured to transmit and receive data by wireless communication.
　給湯機用リモコン１は、給湯機２の運転モードの選択またはスケジュールの設定などを行うために操作されるとともに、給湯機２の運転状態または過去の貯湯量などを表示するものである。図１に示すように、給湯機用リモコン１は、表示部１１と、操作部１２と、記憶部１３と、リモコン側通信部１４と、リモコン制御部１５とを備える。 The water heater remote control 1 is operated to select an operation mode of the water heater 2 or to set a schedule, and displays the operating state of the water heater 2 or the past hot water storage amount. As shown in FIG. 1, the water heater remote control 1 includes a display unit 11, an operation unit 12, a storage unit 13, a remote control side communication unit 14, and a remote control unit 15.
　図２は、給湯機用リモコン１の外観図である。図２に示すように、給湯機用リモコン１の正面には、表示部１１と操作部１２とが設けられる。表示部１１は、例えば液晶ディスプレイなどのドットマトリクス方式の表示パネルである。表示部１１には、給湯機２の状態を表す画面または給湯機２の設定を行うための画面などが表示される。 FIG. 2 is an external view of the water heater remote control 1. As shown in FIG. 2, a display unit 11 and an operation unit 12 are provided in front of the water heater remote control 1. The display unit 11 is a dot matrix display panel such as a liquid crystal display. The display unit 11 displays a screen representing the state of the water heater 2 or a screen for setting the water heater 2.
　操作部１２は、複数の機能または設定に対応する複数のファンクションキー１２１と固有の機能に対応する複数の固定キー１２２とを有する。固定キー１２２は、運転／停止キー１２２ａ、決定キー１２２ｂ、戻るキー１２２ｃ、およびメニューキー１２２ｄを含む。操作部１２の各キーは、押しボタンスイッチで構成される。ユーザは、表示部１１に表示される画面を見ながら操作部１２を操作することで、給湯機２の運転モードおよびスケジュールの設定などを行うことができる。 The operation unit 12 includes a plurality of function keys 121 corresponding to a plurality of functions or settings and a plurality of fixed keys 122 corresponding to unique functions. Fixed key 122 includes an operation / stop key 122a, a determination key 122b, a return key 122c, and a menu key 122d. Each key of the operation unit 12 includes a push button switch. The user can set the operation mode and schedule of the water heater 2 by operating the operation unit 12 while viewing the screen displayed on the display unit 11.
　図１に戻って、給湯機用リモコン１の記憶部１３は、不揮発性のメモリからなり、給湯機用リモコン１の表示および制御に用いられる各種データおよびプログラムを記憶する。具体的には、記憶部１３には、過去にリモコン側通信部１４を介して受信した給湯機２の状態に関するデータが、当該データが取得された日時と対応付けて記憶される。 Returning to FIG. 1, the storage unit 13 of the water heater remote control 1 is composed of a nonvolatile memory, and stores various data and programs used for display and control of the water heater remote control 1. Specifically, in the storage unit 13, data related to the state of the water heater 2 received in the past via the remote control side communication unit 14 is stored in association with the date and time when the data was acquired.
　リモコン側通信部１４は、給湯機２の給湯機側通信部２４と伝送線３で接続され、給湯機側通信部２４とデータの送受信を行う。また、本実施の形態では、伝送線３を介して給湯機２から給電され、リモコン側通信部１４によって受電することで、給湯機用リモコン１が動作する。 The remote controller side communication unit 14 is connected to the water heater side communication unit 24 of the water heater 2 via the transmission line 3 and transmits / receives data to / from the water heater side communication unit 24. Moreover, in this Embodiment, the hot water supply remote control 1 operate | moves by being electrically fed from the water heater 2 via the transmission line 3, and receiving electric power by the remote control side communication part 14. FIG.
　図３は、リモコン制御部１５の機能ブロック図である。リモコン制御部１５は、マイクロコンピュータまたはＤＳＰなどで構成され、給湯機用リモコン１の各部の制御を行う。図３に示すように、リモコン制御部１５は、操作制御部５１と、表示制御部５２と、表示生成部５３と、判定部５４と、を有する。また、判定部５４は、貯湯時間判定部５４１および貯湯量判定部５４２を有する。リモコン制御部１５が有する各部は、ソフトウェアで実現される機能部としてリモコン制御部１５が備えるＣＰＵ（図示せず）によって、メモリまたはＣＤ－ＲＯＭなどの記録媒体（図示せず）に記憶されるプログラムを実行することで実現される。または、上記各部は、ＡＳＩＣ（Application Specific IC）またはＰＬＤ（Programmable Logic Device）などの電子回路で実現されてもよい。 FIG. 3 is a functional block diagram of the remote controller 15. The remote control control unit 15 is constituted by a microcomputer or a DSP, and controls each part of the hot water supply remote control 1. As shown in FIG. 3, the remote control unit 15 includes an operation control unit 51, a display control unit 52, a display generation unit 53, and a determination unit 54. The determination unit 54 includes a hot water storage time determination unit 541 and a hot water storage amount determination unit 542. Each unit included in the remote control unit 15 is a program stored in a recording medium (not shown) such as a memory or a CD-ROM by a CPU (not shown) included in the remote control unit 15 as a functional unit realized by software. It is realized by executing. Or each said part may be implement | achieved by electronic circuits, such as ASIC (Application specific IC) or PLD (Programmable Logic Device).
　操作制御部５１は、操作部１２を介して入力される操作内容を判別し、操作内容に応じた処理を行う。具体的には、操作制御部５１は、操作部１２を介して給湯機２の運転モードまたはスケジュールなどの設定が入力された場合、設定内容に応じた制御信号を生成し、リモコン側通信部１４を介して給湯機２へ送信する。また、操作制御部５１は、入力された設定内容を記憶部１３に記憶する。 The operation control unit 51 determines the operation content input through the operation unit 12 and performs processing according to the operation content. Specifically, when setting such as the operation mode or schedule of the water heater 2 is input via the operation unit 12, the operation control unit 51 generates a control signal corresponding to the setting content, and the remote control side communication unit 14. To the hot water heater 2 via In addition, the operation control unit 51 stores the input setting content in the storage unit 13.
　図４は、給湯機用リモコン１で設定される給湯機２のスケジュールの例である。図４では、曜日ごとに８パターンのスケジュールが設定される。各パターンは、時間、貯湯量および貯湯温度の設定を含む。給湯機２は、スケジュールで設定された時間に、設定された貯湯量および貯湯温度を達成するように運転を行う。なお、貯湯量は、お湯が貯湯槽２２の何％まで貯まっているかで表される。すなわち、貯湯槽２２の半分がお湯の場合は、貯湯量は５０％となる。 FIG. 4 is an example of the schedule of the water heater 2 set by the remote controller 1 for the water heater. In FIG. 4, eight schedules are set for each day of the week. Each pattern includes setting of time, hot water storage amount and hot water storage temperature. The water heater 2 operates to achieve the set hot water storage amount and hot water storage temperature at the time set in the schedule. The hot water storage amount is expressed by how much hot water is stored in the hot water tank 22. That is, when half of the hot water tank 22 is hot water, the hot water storage amount is 50%.
　また、操作制御部５１は、操作部１２を介して表示部１１への表示に関する指示が入力された場合、指示内容に応じた制御信号を生成し、表示制御部５２に送信する。表示制御部５２は、操作制御部５１からの制御信号に応じて、表示生成部５３によって生成された表示画面を表示部１１に表示する。具体的には、表示制御部５２は、操作制御部５１からの制御信号に応じて、給湯機２のスケジュールを設定するための画面または給湯機２の貯湯温度を表示する画面などを表示部１１に表示する。さらに、表示制御部５２は、操作部１２を介して給湯機２の過去の貯湯量の表示が指示された場合、過去の貯湯量の実績を表すグラフを表示部１１に表示する。なお、過去の貯湯量の表示の指示は、ユーザによって過去の何れかの日にちまたは曜日などが指定されて行われる。 Further, when an instruction regarding display on the display unit 11 is input via the operation unit 12, the operation control unit 51 generates a control signal corresponding to the content of the instruction and transmits the control signal to the display control unit 52. The display control unit 52 displays the display screen generated by the display generation unit 53 on the display unit 11 in accordance with a control signal from the operation control unit 51. Specifically, the display control unit 52 displays a screen for setting a schedule for the water heater 2 or a screen for displaying the hot water storage temperature of the water heater 2 according to a control signal from the operation control unit 51. To display. Furthermore, when the display of the past hot water storage amount of the water heater 2 is instructed via the operation unit 12, the display control unit 52 displays a graph representing the past actual hot water storage amount on the display unit 11. The instruction to display the past hot water storage amount is made by designating any past date or day of the week by the user.
　図５は、給湯機２の過去の貯湯量を表す通常グラフの一例である。通常グラフは、予め定められた期間における貯湯量の推移を表すものであり、記憶部１３に記憶される給湯機２の過去の貯湯量に基づいて、表示生成部５３により生成される。図５に示すように、本実施の形態の通常グラフでは、ユーザによって指定された日の１日分の貯湯量として、０時から２３時まで、１時間ごとの貯湯量が棒グラフで表される。なお、通常グラフは図５に限定されるものではなく、様々な変更が可能である。例えば、１日分として１２時から翌日の１１時までの貯湯量を表示してもよく、または貯湯量を折れ線グラフとしてもよい。また、１日分として、２４時間以上または２４時間未満の時間が設定されてもよい。 FIG. 5 is an example of a normal graph representing the past hot water storage amount of the water heater 2. The normal graph represents the transition of the hot water storage amount during a predetermined period, and is generated by the display generation unit 53 based on the past hot water storage amount of the water heater 2 stored in the storage unit 13. As shown in FIG. 5, in the normal graph of the present embodiment, the amount of hot water stored every hour from 0 o'clock to 23:00 is represented by a bar graph as the amount of hot water stored for a day specified by the user. . Note that the normal graph is not limited to FIG. 5, and various changes can be made. For example, the hot water storage amount from 12:00 to 11:00 on the next day may be displayed as one day, or the hot water storage amount may be displayed as a line graph. Further, a time of 24 hours or more or less than 24 hours may be set as one day.
　また、表示制御部５２は、通常グラフとして表示される給湯機２の過去の貯湯量に省エネポイントがある場合は、通常グラフとは異なる特殊グラフを表示部１１に表示する。ここで「省エネポイント」とは、過去の貯湯量または貯湯時間に余剰が発生している箇所であり、当該余剰を削減することにより、省エネを実現できるものをいう。 In addition, when there is an energy saving point in the past hot water storage amount of the water heater 2 displayed as a normal graph, the display control unit 52 displays a special graph different from the normal graph on the display unit 11. Here, the “energy saving point” is a portion where surplus has occurred in the past hot water storage amount or hot water storage time, and means energy saving can be realized by reducing the surplus.
　過去の貯湯量に省エネポイントがあるか否かの判定は、判定部５４によって行われる。判定部５４は、通常グラフとして表示される過去の貯湯量の推移に基づいて、省エネポイントの有無を判定する。本実施の形態の判定部５４は、貯湯時間判定部５４１および貯湯量判定部５４２を有し、給湯機２の過去の貯湯量における「貯湯時間」および「貯湯量」の２点について、省エネポイントがあるか否かを判定する。 Determination of whether there is an energy saving point in the past hot water storage amount is performed by the determination unit 54. The determination part 54 determines the presence or absence of an energy saving point based on the transition of the past hot water storage amount displayed as a normal graph. The determination unit 54 of the present embodiment has a hot water storage time determination unit 541 and a hot water storage amount determination unit 542, and is an energy saving point for “hot water storage time” and “hot water storage amount” in the past hot water storage amount of the water heater 2. It is determined whether or not there is.
　貯湯時間判定部５４１は、過去の貯湯量の推移に基づいて、貯湯時間の余剰が発生したか否かを判定するとともに、貯湯時間の余剰が発生した箇所を特定する。図６は、貯湯時間判定部５４１における貯湯時間の余剰の判定および余剰が発生した箇所の特定を説明する図である。給湯機２において、お湯を最大量まで溜めた状態で、保温時間が長くなると、保温のために多くの熱量が必要となってしまう。そのため、使用する直前に最大量のお湯を溜め、保温時間をできるだけ短くすることが望ましい。そこで、貯湯時間判定部５４１は、貯湯量が最大値となった時間が予め定められた時間以上継続した場合に、貯湯時間の余剰が発生したと判定する。ここでいう最大量は、例えばスケジュールで設定される貯湯量Ｑ_ｓｅｔ１である。 The hot water storage time determination unit 541 determines whether or not a surplus of hot water storage time has occurred based on the transition of the amount of stored hot water in the past, and identifies a location where the surplus of hot water storage time has occurred. FIG. 6 is a diagram for explaining the determination of excess hot water storage time in the hot water storage time determination unit 541 and the specification of the location where the surplus has occurred. In the water heater 2, if the heat insulation time is long in a state where hot water is stored up to the maximum amount, a large amount of heat is required for heat insulation. Therefore, it is desirable to store the maximum amount of hot water immediately before use, and to keep the heat retention time as short as possible. Therefore, the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred when the time when the amount of stored hot water has reached the maximum value continues for a predetermined time or more. The maximum amount here is, for example, the hot water storage amount Q_set1 set in the schedule.
　具体的には、貯湯時間判定部５４１は、通常グラフの傾きに基づいて、貯湯時間に余剰が発生したか否かを判断する。ここで、貯湯量が最大量に達した状態が１時間以上継続している場合、通常グラフにおける貯湯量の傾きが上向きから平坦へと変化する。そこで、貯湯時間判定部５４１は、通常グラフにおける時間ごとの貯湯量の傾きが上向きから平坦になった場合に、貯湯時間の余剰が発生したと判定する。グラフの傾きは、一の時間における貯湯量Ｑ（ｔ）と、次の時間における貯湯量Ｑ（ｔ＋１）との差である。そして、貯湯時間判定部５４１は、グラフの傾きが上向きから平坦になった時間を貯湯時間の余剰が発生した第１開始時間Ｔ_ｕｐ_０とする。図６の場合は、第１開始時間Ｔ_ｕｐ_０は７時である。そして、傾きが平坦でなくなった時間を貯湯時間の余剰が終了した第１終了時間Ｔ_ｕｐ_１とする。図６の場合は、第１終了時間Ｔ_ｕｐ_１は１０時である。 Specifically, the hot water storage time determination unit 541 determines whether or not surplus has occurred in the hot water storage time based on the slope of the normal graph. Here, when the state where the hot water storage amount reaches the maximum amount continues for one hour or more, the inclination of the hot water storage amount in the normal graph changes from upward to flat. Therefore, the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred when the slope of the hot water storage amount for each hour in the normal graph becomes flat from above. The slope of the graph is the difference between the hot water storage amount Q (t) at one time and the hot water storage amount Q (t + 1) at the next time. Then, the hot water storage time determination unit 541 sets the time when the slope of the graph becomes flat from the upward direction as the first start time T_up_0 when the excessive hot water storage time occurs. In the case of FIG. 6, the first start time T_up_0 is 7:00. Then, the time when the slope is not flat is defined as a first end time T_up_1 at which the remaining hot water storage time ends. In the case of FIG. 6, the first end time T_up_1 is 10:00.
　すなわち、貯湯時間判定部５４１は、貯湯量が最大量となった時間が予め定められた時間以上継続した場合に、貯湯時間の余剰が発生したと判定するとともに、第１開始時間Ｔ_ｕｐ_０から第１終了時間Ｔ_ｕｐ_１の前までを、貯湯時間の余剰が発生した箇所（すなわち省エネポイント）として特定する。 That is, the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred when the time when the amount of stored hot water has reached the maximum amount continues for a predetermined time or more, and the first start time T_up_0 to the first time. The part before the end time T_up_1 is specified as a place where the remaining hot water storage time has occurred (that is, an energy saving point).
　貯湯量判定部５４２は、過去の貯湯量の推移に基づいて、貯湯量の余剰が発生したか否かを判定するとともに、貯湯量の余剰が発生した箇所を特定する。図７は、貯湯量判定部５４２における貯湯量の余剰の判定および余剰が発生した箇所の特定を説明する図である。給湯機２において、溜めているお湯の量が多いほど、保温のために多くの熱量が必要となる。そのため、貯湯量を必要最低限とすることが望ましい。そこで、貯湯量判定部５４２は、１日の最後の最終貯湯量Ｑ_ｄｏｗｎが最低確保湯量Ｑ_ｍｉｎよりも多い場合に、貯湯量に余剰が発生したと判定する。ここで「最終貯湯量」とは、１日の最後（図７の場合２３時）の貯湯量に限定されるものではなく、貯湯量が減少し始めてから次の沸き上げが開始される直前の貯湯量をいう。また、最低確保湯量は、貯湯量の最低ラインの値であり、約２０～４０％の間で任意に設定される。 The hot water storage amount determination unit 542 determines whether or not a surplus of the hot water storage amount has occurred based on the transition of the past hot water storage amount, and identifies the location where the surplus of the hot water storage amount has occurred. FIG. 7 is a diagram for explaining the determination of the excess amount of the stored hot water and the identification of the location where the excess has occurred in the stored hot water amount determination unit 542. In the water heater 2, the more hot water is stored, the more heat is required for heat insulation. Therefore, it is desirable to minimize the amount of hot water stored. Therefore, when the final hot water storage amount Q_down at the end of the day is larger than the minimum reserved hot water amount Q_min, the hot water storage amount determination unit 542 determines that there is a surplus in the hot water storage amount. Here, the “final hot water storage amount” is not limited to the hot water storage amount at the end of the day (23:00 in the case of FIG. 7), but just before the next boiling starts after the hot water storage amount starts to decrease. It refers to the amount of hot water stored. Further, the minimum amount of reserved hot water is the value of the minimum line of hot water storage, and is arbitrarily set between about 20 to 40%.
　具体的には、貯湯量判定部５４２は、通常グラフの傾きに基づいて、貯湯量に余剰が発生したか否かを判断する。詳しくは、貯湯量判定部５４２は、通常グラフにおける時間ごとの貯湯量の傾きが、下向きまたは平坦から上向きになったときの貯湯量を、最終貯湯量Ｑ_ｄｏｗｎとして取得し、最低確保湯量Ｑ_ｍｉｎと比較する。そして、最終貯湯量Ｑ_ｄｏｗｎが最低確保湯量Ｑ_ｍｉｎよりも多い場合、貯湯量に余剰分があると判定する。また、貯湯量判定部５４２は、通常グラフの傾きが下向きになった最初の時間を貯湯量の余剰が発生した第２開始時間Ｔ_ｄｏｗｎ_０とする。図７の場合は、第２開始時間Ｔ_ｄｏｗｎ_０は１０時である。そして、通常グラフの傾きが下向きまたは平坦から上向きになった時間を貯湯量の余剰が終了した第２終了時間Ｔ_ｄｏｗｎ_１とする。図７の場合は、第２終了時間Ｔ_ｄｏｗｎ_１は２２時である。なお、グラフの傾きが下向きまたは平坦から上向きになった時間が、次の日の時間の場合には、第２終了時間Ｔ_ｄｏｗｎ_１を１日の最後の時間（図７の場合２３時）としてもよい。 Specifically, the hot water storage amount determination unit 542 determines whether or not surplus has occurred in the hot water storage amount based on the slope of the normal graph. Specifically, the hot water storage amount determination unit 542 acquires, as the final hot water storage amount Q_down, the hot water storage amount when the slope of the hot water storage amount for each hour in the normal graph is downward or flat, and compares it with the minimum reserved hot water amount Q_min. To do. When the final hot water storage amount Q_down is larger than the minimum reserved hot water amount Q_min, it is determined that there is a surplus in the hot water storage amount. Moreover, the hot water storage amount determination unit 542 sets the first time when the slope of the normal graph is downward as the second start time T_down_0 when the excess of the hot water storage occurs. In the case of FIG. 7, the second start time T_down_0 is 10:00. Then, the time when the slope of the normal graph is downward or flat and upward is defined as a second end time T_down_1 at which the remaining amount of hot water has ended. In the case of FIG. 7, the second end time T_down_1 is 22:00. When the time when the slope of the graph is downward or flat is upward is the time of the next day, the second end time T_down_1 may be the last time of the day (23:00 in FIG. 7). .
　すなわち、貯湯量判定部５４２は、貯湯量が減少し始めてから次の沸き上げが開始される直前の最終貯湯量Ｑ_ｄｏｗｎが最低確保湯量Ｑ_ｍｉｎよりも多い場合に、貯湯量の余剰が発生したと判定するとともに、第２開始時間Ｔ_ｄｏｗｎ_０から第２終了時間Ｔ_ｄｏｗｎ_１までを、貯湯量の余剰が発生した箇所（すなわち省エネポイント）として特定する。 That is, the hot water storage amount determination unit 542 determines that an excess of the hot water storage amount has occurred when the final hot water storage amount Q_down immediately before the next boiling starts after the hot water storage amount starts decreasing is larger than the minimum reserved hot water amount Q_min. At the same time, the second start time T_down_0 to the second end time T_down_1 are specified as a location where the excess amount of hot water has occurred (that is, an energy saving point).
　判定部５４は、貯湯時間判定部５４１で貯湯時間の余剰が発生したと判定された場合、または貯湯量判定部５４２で貯湯量の余剰が発生したと判定された場合、給湯機２の過去の貯湯量に省エネポイントがあると判定し、判定結果を表示制御部５２に送信する。 When it is determined by the hot water storage time determination unit 541 that a surplus of hot water storage time has occurred, or when the hot water storage amount determination unit 542 determines that a surplus of hot water storage has occurred, the determination unit 54 determines the past of the hot water heater 2. The hot water storage amount is determined to have an energy saving point, and the determination result is transmitted to the display control unit 52.
　図８は、貯湯時間判定部５４１で貯湯時間の余剰が発生したと判定された場合の特殊グラフの一例である。図８に示す特殊グラフは、貯湯時間判定部５４１の判定結果および特定結果に基づいて、表示生成部５３によって生成される。図８に示すように、表示生成部５３は、予め定められた期間における貯湯量の推移を表す通常グラフから、貯湯時間判定部５４１において特定された省エネポイントの全てを白抜きとしたグラフを生成する。具体的には、表示生成部５３は、第１開始時間Ｔ_ｕｐ_０から第１終了時間Ｔ_ｕｐ_１前までの時間帯のグラフを、全て白抜きとする。 FIG. 8 is an example of a special graph when the hot water storage time determination unit 541 determines that a surplus of hot water storage time has occurred. The special graph shown in FIG. 8 is generated by the display generation unit 53 based on the determination result and the specific result of the hot water storage time determination unit 541. As shown in FIG. 8, the display generation unit 53 generates a graph in which all of the energy saving points specified in the hot water storage time determination unit 541 are outlined from a normal graph representing the transition of the hot water storage amount in a predetermined period. To do. Specifically, the display generation unit 53 sets all the graphs in the time zone from the first start time T_up_0 to the first end time T_up_1 before being outlined.
　図９は、貯湯量判定部５４２で貯湯量の余剰が発生したと判定された場合の特殊グラフの一例である。図９に示す特殊グラフは、貯湯量判定部５４２の判定結果および特定結果に基づいて、表示生成部５３によって生成される。図９に示すように、表示生成部５３は、表示生成部５３は、予め定められた期間における貯湯量の推移を表す通常グラフから、貯湯量判定部５４２において特定された省エネポイントの一部を白抜きとしたグラフを生成する。具体的には、表示生成部５３は、第２開始時間Ｔ_ｄｏｗｎ_０から第２終了時間Ｔ_ｄｏｗｎ_１までの時間帯のグラフの一部を白抜きとする。また、表示生成部５３は、余剰貯湯量Ｑ_ｅｃｏに応じて、白抜きの縦幅を決定する。余剰貯湯量Ｑ_ｅｃｏは、最終貯湯量Ｑ_ｄｏｗｎにおける余剰分であり、最終貯湯量Ｑ_ｄｏｗｎから、最低確保湯量Ｑ_ｍｉｎを減算して求められる。 FIG. 9 is an example of a special graph when the hot water storage amount determination unit 542 determines that a surplus of hot water storage has occurred. The special graph illustrated in FIG. 9 is generated by the display generation unit 53 based on the determination result and the specific result of the hot water storage amount determination unit 542. As shown in FIG. 9, the display generation unit 53 includes a part of the energy saving point specified by the hot water storage amount determination unit 542 from the normal graph representing the transition of the hot water storage amount during a predetermined period. Generate a white graph. Specifically, the display generation unit 53 outlines a part of the graph of the time zone from the second start time T_down_0 to the second end time T_down_1. Moreover, the display production | generation part 53 determines the vertical vertical width according to the surplus hot water storage amount Q_eco. The surplus hot water storage amount Q_eco is the surplus in the final hot water storage amount Q_down, and is obtained by subtracting the minimum reserved hot water amount Q_min from the final hot water storage amount Q_down.
　また、図１０は、貯湯時間判定部５４１で貯湯時間の余剰が発生したと判定されたとともに、貯湯量判定部５４２で貯湯量の余剰が発生したと判定された場合の特殊グラフの一例である。図１０に示す特殊グラフは、貯湯時間判定部５４１および貯湯量判定部５４２の判定結果および特定結果に基づいて、表示生成部５３によって生成される。図１０に示すように、表示生成部５３は、貯湯時間判定部５４１において特定された省エネポイントの全てを白抜きとするとともに、貯湯量判定部５４２において特定された省エネポイントを余剰貯湯量Ｑ_ｅｃｏに応じた白抜きとしたグラフを生成する。 FIG. 10 is an example of a special graph when the hot water storage time determination unit 541 determines that the hot water storage time surplus has occurred and the hot water storage amount determination unit 542 determines that the hot water storage amount surplus has occurred. . The special graph shown in FIG. 10 is generated by the display generation unit 53 based on the determination result and the specific result of the hot water storage time determination unit 541 and the hot water storage amount determination unit 542. As shown in FIG. 10, the display generation unit 53 highlights all of the energy saving points specified by the hot water storage time determination unit 541 and sets the energy saving points specified by the hot water storage amount determination unit 542 to the surplus hot water storage amount Q_eco. Corresponding white graph is generated.
　なお、図８～図１０では、省エネポイントが白抜きで表示される例を示したが、これに限定されるものではない。例えば、省エネポイントを点滅させる（点滅）、省エネポイントを他より大きく表示させる（拡大）、または省エネポイントを薄く表示させる（濃淡）などとしてもよい。濃淡の場合、給湯機用リモコン１が白黒表示の場合は、縞模様で表示すればよい。また、上記の表示方法を任意に組み合わせてもよい。 8 to 10 show examples in which the energy saving points are displayed in white, but the present invention is not limited to this. For example, the energy saving point may blink (flash), the energy saving point may be displayed larger (enlarged), or the energy saving point may be displayed lighter (dark). In the case of shading, if the hot water remote controller 1 is in black and white display, it may be displayed in a striped pattern. Moreover, you may combine said display method arbitrarily.
　また、表示制御部５２は、表示部１１に特殊グラフが表示されている状態において、操作部１２を介して何れかの省エネポイントが選択された場合、選択された省エネポイントに対するスケジュールの改善案を表示部１１に表示する。 Further, when any energy saving point is selected via the operation unit 12 in a state where the special graph is displayed on the display unit 11, the display control unit 52 proposes a plan improvement plan for the selected energy saving point. It is displayed on the display unit 11.
　図１１は、省エネポイントの選択を説明する図である。図１１に示すように、操作部１２を介して給湯機２の過去の貯湯量の表示が指示された場合であって、給湯機２の過去の貯湯量に省エネポイントがある場合、表示制御部５２は、表示生成部５３によって生成された特殊グラフを表示部１１に表示する。また、表示制御部５２は、特殊グラフにおいて選択可能な省エネポイントに記号Ｐを表示する。図１１の場合、第１開始時間Ｔ_ｕｐ_０のグラフの下、および第２開始時間Ｔ_ｄｏｗｎ_０のグラフの下に、黒丸の記号Ｐが表示される。また、記号Ｐの下には、カーソルＣが表示される。カーソルＣは、操作部１２のファンクションキー１２１を操作することで、移動させることができる。なお、カーソルＣが移動する範囲は、記号Ｐが表示されている箇所のみである。 FIG. 11 is a diagram for explaining selection of energy saving points. As shown in FIG. 11, when the display of the past hot water storage amount of the water heater 2 is instructed via the operation unit 12 and there is an energy saving point in the past hot water storage amount of the water heater 2, the display control unit 52 displays the special graph generated by the display generation unit 53 on the display unit 11. Moreover, the display control part 52 displays the symbol P on the energy-saving point which can be selected in a special graph. In the case of FIG. 11, a black circle symbol P is displayed below the graph of the first start time T_up_0 and below the graph of the second start time T_down_0. A cursor C is displayed below the symbol P. The cursor C can be moved by operating the function key 121 of the operation unit 12. Note that the range in which the cursor C moves is only where the symbol P is displayed.
　カーソルＣによって記号Ｐが選択された状態で、決定キー１２２ｂが押されることにより、省エネポイントが選択される。操作制御部５１は、第１開始時間Ｔ_ｕｐ_０のグラフの下の記号Ｐが選択された場合、貯湯時間に関する省エネポイントが選択されたと判断し、表示制御部５２に制御信号を送信する。また、操作制御部５１は、第２開始時間Ｔ_ｄｏｗｎ_０のグラフの下の記号Ｐが選択された場合、貯湯量に関する省エネポイントが選択されたと判断し、表示制御部５２に制御信号を送信する。そして、表示制御部５２は、操作制御部５１からの制御信号に応じて、表示生成部５３によって生成されるスケジュールの改善案を表示部１１に表示する。 When the symbol P is selected by the cursor C, the energy saving point is selected by pressing the enter key 122b. When the symbol P below the graph of the first start time T_up_0 is selected, the operation control unit 51 determines that an energy saving point related to hot water storage time has been selected, and transmits a control signal to the display control unit 52. Further, when the symbol P below the graph of the second start time T_down_0 is selected, the operation control unit 51 determines that an energy saving point related to the hot water storage amount has been selected, and transmits a control signal to the display control unit 52. Then, the display control unit 52 displays a schedule improvement plan generated by the display generation unit 53 on the display unit 11 in accordance with a control signal from the operation control unit 51.
　図１２は、貯湯時間に関する省エネポイントが選択された場合のスケジュール改善案の一例である。図１２のスケジュール改善案は、表示された給湯機２の過去の貯湯量におけるスケジュールの「時間」の改善案を含む。具体的には、表示生成部５３は、スケジュールにおける「時間」を、貯湯時間判定部５４１において特定された第１開始時間Ｔ_ｕｐ_０から第１終了時間Ｔ_ｕｐ_１に変更することを提案する表示をスケジュール改善案として生成する。図１２の例では、火曜日のパターン２の時間を７：００（Ｔ_ｕｐ_０）から１０：００（Ｔ_ｕｐ_１）へ変更する改善案が表示される。 FIG. 12 is an example of a schedule improvement plan when an energy saving point related to hot water storage time is selected. The schedule improvement plan in FIG. 12 includes an improvement plan for the “time” of the schedule in the past hot water storage amount of the water heater 2 displayed. Specifically, the display generation unit 53 proposes a schedule improvement plan that proposes changing the “time” in the schedule from the first start time T_up_0 specified by the hot water storage time determination unit 541 to the first end time T_up_1. Generate as In the example of FIG. 12, an improvement plan for changing the time of Pattern 2 on Tuesday from 7:00 (T_up_0) to 10:00 (T_up_1) is displayed.
　図１３は、貯湯量に関する省エネポイントが選択された場合のスケジュール改善案の一例である。図１３のスケジュール改善案は、表示された給湯機２の過去の貯湯量におけるスケジュールの「貯湯量」の改善案を含む。具体的には、表示生成部５３は、現在設定されているスケジュールの「貯湯量（Ｑ_ｓｅｔ１）」を、省エネ貯湯量Ｑ_ｓｅｔ２に変更することを提案する表示をスケジュール改善案として生成する。省エネ貯湯量Ｑ_ｓｅｔ２は、現在スケジュールに設定される貯湯量Ｑ_ｓｅｔ１から余剰貯湯量Ｑ_ｅｃｏを減算することにより求められる。図１３の例では、例えば余剰貯湯量Ｑ_ｅｃｏが３０％の場合、火曜日のパターン２の貯湯量を１００％（Ｑ_ｓｅｔ１）から７０％（Ｑ_ｓｅｔ２）へ変更する改善案が表示される。 FIG. 13 is an example of a schedule improvement plan when an energy saving point related to the amount of stored hot water is selected. The schedule improvement plan of FIG. 13 includes an improvement plan of the “hot water storage amount” of the schedule in the past hot water storage amount of the displayed hot water heater 2. Specifically, the display generation unit 53 generates a display for proposing changing the “hot water storage amount (Q_set1)” of the currently set schedule to the energy saving hot water storage amount Q_set2 as a schedule improvement plan. The energy saving hot water storage amount Q_set2 is obtained by subtracting the surplus hot water storage amount Q_eco from the hot water storage amount Q_set1 set in the current schedule. In the example of FIG. 13, for example, when the surplus hot water storage amount Q_eco is 30%, an improvement plan for changing the hot water storage amount of Pattern 2 on Tuesday from 100% (Q_set1) to 70% (Q_set2) is displayed.
　図１４は、給湯機２の過去の貯湯量の表示が指示された場合の表示処理を示すフローチャートである。本処理では、まず、判定部５４による省エネ判定処理が行われる（Ｓ１）。そして、省エネ判定処理の結果、省エネポイントがあるか否かが判断される（Ｓ２）。ここでは、後述する省エネフラグが１の場合は省エネポイントがあると判断され、省エネフラグが０の場合は省エネポイントがないと判断される。そして、省エネポイントがない場合は（Ｓ２：ＮＯ）、表示制御部５２によって、表示部１１に図５に示す通常グラフが表示される（Ｓ３）。そして、表示を終了するか否かが判断され（Ｓ４）、表示を終了しない場合は（Ｓ４：ＮＯ）、ステップＳ３に戻って通常グラフの表示を継続する。一方、表示を終了する場合は（Ｓ４：ＹＥＳ）、本処理を終了する。 FIG. 14 is a flowchart showing a display process when a display of the past hot water storage amount of the water heater 2 is instructed. In this process, first, the energy-saving determination process by the determination part 54 is performed (S1). As a result of the energy saving determination process, it is determined whether there is an energy saving point (S2). Here, when the energy saving flag described later is 1, it is determined that there is an energy saving point, and when the energy saving flag is 0, it is determined that there is no energy saving point. When there is no energy saving point (S2: NO), the display control unit 52 displays the normal graph shown in FIG. 5 on the display unit 11 (S3). Then, it is determined whether or not to end the display (S4). If the display is not ended (S4: NO), the process returns to step S3 to continue displaying the normal graph. On the other hand, when the display is to be ended (S4: YES), this process is ended.
　また、省エネポイントがある場合は（Ｓ２：ＹＥＳ）、表示生成部５３によって図８、図９または図１０に示すような特殊グラフが生成され、表示部１１に表示される（Ｓ５）。そして、省エネポイントが選択されたか否かが判断される（Ｓ６）。ここで、省エネポイントが選択されていない場合は（Ｓ６：ＮＯ）、ステップＳ１０に進む。一方、省エネポイントが選択された場合（Ｓ６：ＹＥＳ）、貯湯時間に関する省エネポイントが選択されたか否かが判断される（Ｓ７）。そして、貯湯時間に関する省エネポイントが選択された場合（Ｓ７：ＹＥＳ）、表示生成部５３によって図１２に示すような貯湯時間に関するスケジュール改善案が生成され、表示部１１に表示される（Ｓ８）。一方、貯湯時間に関する省エネポイントが選択されていない場合（Ｓ７：ＮＯ）、すなわち、貯湯量に関する省エネポイントが選択された場合、表示生成部５３によって図１３に示すような貯湯量に関するスケジュール改善案が生成され、表示部１１に表示される（Ｓ９）。そして、表示を終了するか否かが判断され（Ｓ１０）、表示を終了しない場合は（Ｓ１０：ＮＯ）、ステップＳ５に戻って以降の処理が繰り返される。一方、表示を終了する場合は（Ｓ１０：ＹＥＳ）、本処理を終了する。 If there is an energy saving point (S2: YES), a special graph as shown in FIG. 8, 9, or 10 is generated by the display generation unit 53 and displayed on the display unit 11 (S5). And it is judged whether the energy-saving point was selected (S6). If no energy saving point has been selected (S6: NO), the process proceeds to step S10. On the other hand, when the energy saving point is selected (S6: YES), it is determined whether or not the energy saving point related to the hot water storage time is selected (S7). And when the energy saving point regarding hot water storage time is selected (S7: YES), the schedule production | generation plan regarding hot water storage time as shown in FIG. 12 is produced | generated by the display production | generation part 53, and it displays on the display part 11 (S8). On the other hand, when the energy saving point related to the hot water storage time is not selected (S7: NO), that is, when the energy saving point related to the hot water storage amount is selected, a schedule improvement plan regarding the hot water storage amount as shown in FIG. It is generated and displayed on the display unit 11 (S9). Then, it is determined whether or not to end the display (S10). If the display is not ended (S10: NO), the process returns to step S5 and the subsequent processing is repeated. On the other hand, when the display is to be ended (S10: YES), this process is ended.
　図１５は、省エネ判定処理を示すフローチャートである。本処理では、指定された日における給湯機２の１日分の過去の貯湯量において、省エネポイントがあるか否かが判定される。なお、１日分の過去の貯湯量は、時間ｎから時間ｍまでの１時間ごとの貯湯量とする。まず、省エネフラグが０に設定され（Ｓ１１）、変数である時間ｔがｎとされる（Ｓ１２）。省エネフラグは、省エネポイントがあるか否かを示すものであり、記憶部１３に記憶される。次に、通常グラフから傾きＫが求められる（Ｓ１３）。傾きＫは、時間ｔにおける貯湯量Ｑ（ｔ）と、時間ｔ＋１における貯湯量Ｑ（ｔ＋１）との差である。そして、傾きＫが０か否かが判断される（Ｓ１４）。 FIG. 15 is a flowchart showing the energy saving determination process. In this process, it is determined whether or not there is an energy saving point in the past hot water storage amount for one day of the water heater 2 on the designated day. The past hot water storage amount for one day is the hot water storage amount per hour from time n to time m. First, the energy saving flag is set to 0 (S11), and the variable time t is set to n (S12). The energy saving flag indicates whether there is an energy saving point, and is stored in the storage unit 13. Next, the slope K is obtained from the normal graph (S13). The slope K is the difference between the hot water storage amount Q (t) at time t and the hot water storage amount Q (t + 1) at time t + 1. Then, it is determined whether or not the slope K is 0 (S14).
　ここで、傾きＫが０の場合（Ｓ１４：ＹＥＳ）、時間ｔに１が加算される（Ｓ１５）。そして、時間ｔがＮ以上か否かが判断される（Ｓ１６）。時間ｔがＮ未満である場合、ステップＳ１３に戻り、以降の処理が繰り返される。 Here, when the slope K is 0 (S14: YES), 1 is added to the time t (S15). Then, it is determined whether the time t is N or more (S16). When the time t is less than N, the process returns to step S13 and the subsequent processing is repeated.
　一方、傾きＫが０でない場合（Ｓ１４：ＮＯ）、傾きＫが０より大きいか否かが判断される（Ｓ１７）。そして、傾きＫが０より大きい場合（Ｓ１７：ＹＥＳ）、すなわち傾きが上向きの場合、貯湯時間判定部５４１による貯湯時間判定処理が行われる（Ｓ１８）。一方、傾きＫが０以下の場合（Ｓ１７：ＮＯ）、すなわち傾きＫが下向きの場合、貯湯量判定部５４２による貯湯量判定処理が行われる（Ｓ１９）。 On the other hand, if the slope K is not 0 (S14: NO), it is determined whether the slope K is greater than 0 (S17). When the slope K is greater than 0 (S17: YES), that is, when the slope is upward, the hot water storage time determination unit 541 performs hot water storage time determination processing (S18). On the other hand, when the slope K is 0 or less (S17: NO), that is, when the slope K is downward, the hot water storage amount determination unit 542 performs hot water storage amount determination processing (S19).
　図１６は、貯湯時間判定処理を示すフローチャートである。本処理では、まず、時間ｔに１が加算される（Ｓ１０１）。そして、傾きＫが求められ（Ｓ１０２）、傾きＫが０より大きいか否かが判断される（Ｓ１０３）。ここで、傾きＫが０より大きい場合（Ｓ１０３：ＹＥＳ）、時間ｔに１が加算される（Ｓ１０４）。そして、時間ｔがＮ以上であるか否かが判断され（Ｓ１０５）、時間ｔがＮ未満の場合（Ｓ１０５：ＮＯ）、ステップＳ１０２に戻って以降の処理が繰り返される。一方、時間ｔがＮ以上の場合（Ｓ１０５：ＹＥＳ）、本処理を終了し、図１５の省エネ判定処理に戻る。 FIG. 16 is a flowchart showing hot water storage time determination processing. In this process, first, 1 is added to the time t (S101). Then, the slope K is obtained (S102), and it is determined whether or not the slope K is greater than 0 (S103). If the slope K is greater than 0 (S103: YES), 1 is added to the time t (S104). Then, it is determined whether or not the time t is N or more (S105). If the time t is less than N (S105: NO), the process returns to step S102 and the subsequent processing is repeated. On the other hand, when the time t is equal to or longer than N (S105: YES), this process is terminated and the process returns to the energy saving determination process of FIG.
　一方、ステップＳ１０３で、傾きＫが０以下の場合（Ｓ１０３：ＮＯ）、傾きＫが０であるか否かが判断される（Ｓ１０６）。そして、傾きＫが０の場合（Ｓ１０６：ＹＥＳ）、省エネフラグが１にされる（Ｓ１０７）。ここでは、グラフの傾きが上向きから平坦になったことから、貯湯時間に余剰が発生したと判定される。そして、時間ｔが第１開始時間Ｔ_ｕｐ_０とされる（Ｓ１０８）。 On the other hand, if the slope K is 0 or less in step S103 (S103: NO), it is determined whether or not the slope K is 0 (S106). If the slope K is 0 (S106: YES), the energy saving flag is set to 1 (S107). Here, since the slope of the graph has become flat from above, it is determined that a surplus has occurred in the hot water storage time. Then, the time t is set as the first start time T_up_0 (S108).
　続いて、時間ｔに１が加算され（Ｓ１０９）、時間ｔがＮ以上であるか否かが判断される（Ｓ１１０）。そして、時間ｔがＮ未満の場合（Ｓ１１０：ＮＯ）、傾きＫが求められ（Ｓ１１１）、傾きＫが０であるか否かが判断される（Ｓ１１２）。そして、傾きＫが０の場合（Ｓ１１２：ＹＥＳ）、ステップＳ１０９に戻って以降の処理が繰り返される。一方、傾きＫが０でない場合（Ｓ１１２：ＮＯ）、時間ｔが第１終了時間Ｔ_ｕｐ_１とされる（Ｓ１１３）。その後、本処理を終了し、図１５の省エネ判定処理に戻る。 Subsequently, 1 is added to time t (S109), and it is determined whether time t is N or more (S110). If the time t is less than N (S110: NO), the slope K is obtained (S111), and it is determined whether the slope K is 0 (S112). If the slope K is 0 (S112: YES), the process returns to step S109 and the subsequent processing is repeated. On the other hand, when the slope K is not 0 (S112: NO), the time t is set as the first end time T_up_1 (S113). Thereafter, this process is terminated, and the process returns to the energy saving determination process of FIG.
　一方、ステップＳ１１０において、時間ｔがＮ以上である場合（Ｓ１１０：ＹＥＳ）、時間ｔが第１終了時間Ｔ_ｕｐ_１とされる（Ｓ１１４）。すなわち、この場合は、第１終了時間Ｔ_ｕｐ_１が１日分の最終時間Ｎとされる。その後、本処理を終了し、図１５の省エネ判定処理に戻る。 On the other hand, when the time t is N or more in step S110 (S110: YES), the time t is set as the first end time T_up_1 (S114). That is, in this case, the first end time T_up_1 is the final time N for one day. Thereafter, this process is terminated, and the process returns to the energy saving determination process of FIG.
　図１７は、貯湯量判定処理を示すフローチャートである。本処理では、まず、時間ｔが第２開始時間Ｔ_ｄｏｗｎ_０とされる（Ｓ２０１）。そして、時間ｔに１が加算され（Ｓ２０２）、傾きＫが求められる（Ｓ２０３）。そして、傾きＫが０より大きいか否かが判断される（Ｓ２０４）。ここで、傾きＫが０以下の場合（Ｓ２０４：ＮＯ）、すなわち傾きが下向きかまたは平坦の場合、時間ｔに１が加算される（Ｓ２０５）。そして、時間ｔがＮ以上であるか否かが判断され（Ｓ２０６）、時間ｔがＮ未満の場合（Ｓ２０６：ＮＯ）、ステップＳ２０３に戻って以降の処理が繰り返される。 FIG. 17 is a flowchart showing a hot water storage amount determination process. In this process, first, the time t is set to the second start time T_down_0 (S201). Then, 1 is added to the time t (S202), and the slope K is obtained (S203). Then, it is determined whether or not the slope K is greater than 0 (S204). Here, when the slope K is 0 or less (S204: NO), that is, when the slope is downward or flat, 1 is added to the time t (S205). Then, it is determined whether or not the time t is N or more (S206). If the time t is less than N (S206: NO), the process returns to step S203 and the subsequent processing is repeated.
　一方、傾きＫが０より大きい場合（Ｓ２０４：ＹＥＳ）、すなわち傾きが上向きの場合、または時間ｔがＮ以上となった場合（Ｓ２０６：ＹＥＳ）、時間ｔが第２終了時間Ｔ_ｄｏｗｎ_１とされる（Ｓ２０７）。そして、時間ｔにおける貯湯量Ｑ（ｔ）が最終貯湯量Ｑ_ｄｏｗｎとされる（Ｓ２０８）。次に、最終貯湯量Ｑ_ｄｏｗｎと最低確保湯量Ｑ_ｍｉｎとの差が、０より大きいか否かが判断される（Ｓ２０９）。 On the other hand, when the slope K is larger than 0 (S204: YES), that is, when the slope is upward, or when the time t is N or more (S206: YES), the time t is set as the second end time T_down_1 ( S207). The hot water storage amount Q (t) at time t is set as the final hot water storage amount Q_down (S208). Next, it is determined whether or not the difference between the final hot water storage amount Q_down and the minimum reserved hot water amount Q_min is greater than 0 (S209).
　そして、最終貯湯量Ｑ_ｄｏｗｎと最低確保湯量Ｑ_ｍｉｎとの差が、０より大きい場合（Ｓ２０９：ＹＥＳ）、省エネフラグが１に設定され（Ｓ２１０）、本処理を終了して図１５の省エネ判定処理に戻る。すなわち、グラフの傾きが下向きまたは平坦から上向きになったときの最終貯湯量Ｑ_ｄｏｗｎが最低確保湯量Ｑ_ｍｉｎよりも多い場合に、貯湯量に余剰分があると判定される。一方、最終貯湯量Ｑ_ｄｏｗｎと最低確保湯量Ｑ_ｍｉｎとの差が０以下の場合（Ｓ２０９：ＮＯ）、省エネフラグを変更することなく、本処理を終了して図１５の省エネ判定処理に戻る。 When the difference between the final hot water storage amount Q_down and the minimum reserved hot water amount Q_min is greater than 0 (S209: YES), the energy saving flag is set to 1 (S210), and this process is terminated and the energy saving determination process of FIG. Return. That is, when the final hot water storage amount Q_down when the slope of the graph is downward or flat is upward is greater than the minimum reserved hot water amount Q_min, it is determined that there is an excess in the hot water storage amount. On the other hand, when the difference between the final hot water storage amount Q_down and the minimum reserved hot water amount Q_min is 0 or less (S209: NO), this process is terminated without changing the energy saving flag, and the process returns to the energy saving determination process of FIG.
　図１５に戻って、ステップＳ１８の貯湯時間判定処理またはステップＳ１９の貯湯量判定処理が終了すると、ステップＳ１５に進み、時間ｔに１が加算される（Ｓ１５）。そして、時間ｔがＮ以上となったか否かが判断され、時間ｔがＮより小さい場合は（Ｓ１６：ＮＯ）、ステップＳ１３に戻り、以降の処理が繰り返される。一方、時間ｔがＮ以上となった場合（Ｓ１６：ＹＥＳ）、本処理を終了する。 Returning to FIG. 15, when the hot water storage time determination process in step S18 or the hot water storage amount determination process in step S19 ends, the process proceeds to step S15, and 1 is added to the time t (S15). Then, it is determined whether or not the time t is equal to or greater than N. If the time t is smaller than N (S16: NO), the process returns to step S13, and the subsequent processing is repeated. On the other hand, when the time t becomes N or more (S16: YES), this process is terminated.
　以上のように、本実施の形態によれば、給湯機２の過去の貯湯量に省エネポイントがある場合に、省エネポイントを示す特殊グラフが表示されることにより、ユーザが過去の貯湯量のどの部分に無駄が生じているかを把握することができる。これにより、省エネを実現するための、スケジュールの変更をユーザに促すことができる。その結果、給湯機２を効率よく運転させ、消費電力の削減を実現できる。 As described above, according to the present embodiment, when there is an energy saving point in the past hot water storage amount of the water heater 2, the special graph indicating the energy saving point is displayed, so that the user can determine which of the past hot water storage amounts. It is possible to grasp whether waste is generated in the portion. Thereby, it is possible to prompt the user to change the schedule for realizing energy saving. As a result, the water heater 2 can be operated efficiently, and power consumption can be reduced.
　また、判定部５４は、予め定められた期間における過去の貯湯量の最大値が、予め定められた時間以上継続した場合に、過去の貯湯時間に余剰が発生したと判定する貯湯時間判定部５４１を有する。また、貯湯時間判定部５４１は、過去の貯湯量が最初に最大値となった時間を第１開始時間Ｔ_ｕｐ_０とし、過去の貯湯量が最後に最大値となった時間を第１終了時間Ｔ_ｕｐ_１とし、表示部１１は、第１開始時間Ｔ_ｕｐ_０から、第１終了時間Ｔ_ｕｐ_１前までの時間帯を、省エネポイントとして示す。これにより、給湯機２の過去の運転における保温時間の無駄の判定および無駄が発生している箇所の特定ができる。 Moreover, the determination part 54 determines with the hot water storage time determination part 541 having determined that the surplus has generate | occur | produced in the past hot water storage time, when the maximum value of the past hot water storage amount in the predetermined period continues more than predetermined time. Have Further, the hot water storage time determination unit 541 sets the time when the past hot water storage amount first becomes the maximum value as the first start time T_up_0, and the time when the past hot water storage amount finally reaches the maximum value as the first end time T_up_1. The display unit 11 indicates a time zone from the first start time T_up_0 to the first end time T_up_1 as an energy saving point. Thereby, it is possible to determine the waste of the heat retention time in the past operation of the water heater 2 and specify the location where the waste occurs.
　また、特殊グラフは、予め定められた期間における給湯機２の過去の貯湯量の推移を示すグラフを含み、表示生成部５３は、特殊グラフにおいて、第１開始時間Ｔ_ｕｐ_０から第１終了時間Ｔ_ｕｐ_１前の時間までのグラフの表示を、それ以外の時間のグラフの表示と異ならせる。これにより、給湯機２の過去の運転において、どのくらい保温時間に無駄が生じていたかを容易に把握することができる。 In addition, the special graph includes a graph indicating the transition of the past hot water storage amount of the water heater 2 in a predetermined period, and the display generation unit 53 includes a first graph from the first start time T_up_0 to the first end time T_up_1 before the special graph. The display of the graph up to the time of is different from the display of the graph at other times. Thereby, in the past operation of the water heater 2, it is possible to easily grasp how much waste is generated in the heat retention time.
　また、判定部５４は、予め定められた期間において貯湯量が減少してから次の沸き上げが開始される直前の最終貯湯量Ｑ_ｄｏｗｎが、予め定められた最低確保湯量Ｑ_ｍｉｎよりも多い場合に、過去の貯湯量に余剰が発生したと判定する貯湯量判定部５４２を有する。また、貯湯量判定部５４２は、予め定められた期間において貯湯量が減少し始めた時間を第２開始時間Ｔ_ｄｏｗｎ_０とし、最終貯湯量Ｑ_ｄｏｗｎとなった時間を第２終了時間Ｔ_ｄｏｗｎ_１とし、表示生成部５３は、第２開始時間Ｔ_ｄｏｗｎ_０から第２終了時間Ｔ_ｄｏｗｎ_１までの時間帯を、省エネポイントとして示す。これにより、給湯機２の過去の運転における保温量の無駄の判定および無駄が発生している箇所の特定ができる。 In addition, the determination unit 54, when the final hot water storage amount Q_down immediately before the next boiling starts after the hot water storage amount decreases in a predetermined period is larger than the predetermined minimum secured hot water amount Q_min, It has the hot water storage amount determination part 542 which determines with the surplus having generate | occur | produced in the past hot water storage amount. Further, the hot water storage amount determination unit 542 sets the time when the hot water storage amount starts to decrease during a predetermined period as the second start time T_down_0, and sets the time when the final hot water storage amount Q_down becomes the second end time T_down_1 as a display generation unit. 53 indicates a time zone from the second start time T_down_0 to the second end time T_down_1 as an energy saving point. As a result, it is possible to determine whether the heat retention amount is wasted in the past operation of the water heater 2 and to identify the location where the waste is generated.
　さらに、表示生成部５３は、特殊グラフにおいて、最終貯湯量Ｑ_ｄｏｗｎから最低確保湯量Ｑ_ｍｉｎを減算した貯湯量の余剰分（余剰貯湯量Ｑ_ｅｃｏ）を示す。これにより、貯湯量の余剰分を容易に把握することができる。 Further, the display generating unit 53 indicates the surplus amount of hot water stored (the surplus hot water storage amount Q_eco) obtained by subtracting the minimum reserved hot water amount Q_min from the final hot water storage amount Q_down in the special graph. Thereby, the surplus of the amount of hot water storage can be grasped | ascertained easily.
　また、給湯機用リモコン１は、ユーザによって操作される操作部１２をさらに備え、表示生成部５３は、さらに、判定部５４によって特定された省エネポイントに基づいて、給湯機２の運転に関するスケジュール改善案を生成する。そして、表示部１１は、操作部１２の操作に応じて、スケジュール改善案を表示する。これにより、具体的にどのようにスケジュールを変更することで、省エネを実現することができるかをユーザに報知することができ、ユーザが最適なスケジュールを設定することができる。 Moreover, the remote controller 1 for the hot water heater further includes an operation unit 12 operated by the user, and the display generation unit 53 further improves the schedule related to the operation of the water heater 2 based on the energy saving point specified by the determination unit 54. Generate a draft. Then, the display unit 11 displays a schedule improvement plan according to the operation of the operation unit 12. Thereby, it is possible to notify the user of how energy saving can be realized by specifically changing the schedule, and the user can set an optimal schedule.
　以上が本発明の実施の形態の説明であるが、本発明は、上記実施の形態の構成に限定されるものではなく、その技術的思想の範囲内で様々な変形または組み合わせが可能である。例えば、給湯システム１００は、図１の構成に限定されるものではなく、複数の給湯機２および複数の給湯機用リモコン１を備える構成であってもよい。また、上記実施の形態では、給湯機用リモコン１が備える表示部１１に通常グラフ、特殊グラフおよびスケジュール改善案などを表示する構成としたが、これに限定されるものではない。例えば、給湯機用リモコン１に接続される別の表示装置に表示生成部５３によって生成される表示データを送信し、当該表示装置に通常グラフ、特殊グラフおよびスケジュール改善案などを表示させてもよい。 The above is the description of the embodiment of the present invention, but the present invention is not limited to the configuration of the above embodiment, and various modifications or combinations are possible within the scope of the technical idea. For example, the hot water supply system 100 is not limited to the configuration of FIG. 1, and may be configured to include a plurality of hot water heaters 2 and a plurality of hot water heater remote controls 1. Moreover, in the said embodiment, although it was set as the structure which displays a normal graph, a special graph, a schedule improvement plan etc. on the display part 11 with which the remote control 1 for hot water heaters is provided, it is not limited to this. For example, the display data generated by the display generation unit 53 may be transmitted to another display device connected to the remote controller 1 for hot water heater, and the normal graph, the special graph, the schedule improvement plan, and the like may be displayed on the display device. .
　また、上記実施の形態におけるスケジュール改善案においては、スケジュールの変更に関するその他の情報を合わせて表示してもよい。その他の情報としては、例えば、スケジュールの変更により電気代がいくら得になるかといった情報などがある。また、上記実施の形態は、給湯機２の過去の１日分の貯湯量の推移に基づいて、省エネポイントの有無を判定するものであるが、１日分に限定されるものではなく、任意の期間を設定可能である。また、通常グラフおよび特殊グラフにおいては、１時間ごとの貯湯量を棒グラフで表すものとしたが、１時間未満または１時間以上の貯湯量を表すものであってもよい。 Further, in the schedule improvement plan in the above embodiment, other information related to the schedule change may be displayed together. As other information, for example, there is information such as how much electricity cost can be obtained by changing the schedule. Moreover, although the said embodiment determines the presence or absence of an energy-saving point based on transition of the hot water storage amount for the past 1 day of the water heater 2, it is not limited to 1 day, and is arbitrary. Period can be set. Moreover, in the normal graph and the special graph, the hot water storage amount per hour is represented by a bar graph, but it may represent the hot water storage amount of less than one hour or more than one hour.
　１　給湯機用リモコン、２　給湯機、３　伝送線、１１　表示部、１２　操作部、１３　記憶部、１４　リモコン側通信部、１５　リモコン制御部、２１　熱源部、２２　貯湯槽、２３　給湯機制御部、２４　給湯機側通信部、５１　操作制御部、５２　表示制御部、５３　表示生成部、５４　判定部、１００　給湯システム、１２１　ファンクションキー、１２２　固定キー、１２２ａ　運転／停止キー、１２２ｂ　決定キー、１２２ｃ　戻るキー、１２２ｄ　メニューキー、２２０　温度センサ、５４１　貯湯時間判定部、５４２　　貯湯量判定部。 1 remote controller for water heater, 2 water heater, 3 transmission line, 11 display unit, 12 operation unit, 13 storage unit, 14 remote control side communication unit, 15 remote control unit, 21 heat source unit, 22 hot water storage tank, 23 hot water supply controller , 24 water heater side communication unit, 51 operation control unit, 52 display control unit, 53 display generation unit, 54 determination unit, 100 hot water supply system, 121 function key, 122 fixed key, 122a operation / stop key, 122b determination key, 122c Return key, 122d menu key, 220 temperature sensor, 541 hot water storage time determination unit, 542 hot water storage amount determination unit.

Claims (9)

  1. 　予め定められた期間における給湯機の過去の貯湯量の推移から、前記過去の貯湯量および貯湯時間の少なくとも一つに余剰が発生したか否かを判定するとともに、前記余剰が発生した場合に、前記余剰の発生箇所である省エネポイントを特定する判定部と、
    　前記判定部によって特定された前記省エネポイントを示す特殊グラフを生成する表示生成部と、
    　前記表示生成部によって生成された前記特殊グラフを表示する表示部と、を備える給湯機用リモコン。     From the transition of the past hot water storage amount of the hot water heater in a predetermined period, it is determined whether or not surplus has occurred in at least one of the past hot water storage amount and hot water storage time, and when the surplus has occurred, A determination unit for identifying an energy-saving point that is the surplus occurrence point;
    A display generation unit that generates a special graph indicating the energy saving point specified by the determination unit;
    A water heater remote control comprising: a display unit that displays the special graph generated by the display generation unit.
  2. 　前記判定部は、前記予め定められた期間における前記過去の貯湯量の最大値が、予め定められた時間以上継続した場合に、前記過去の貯湯時間に余剰が発生したと判定する貯湯時間判定部を有する請求項１に記載の給湯機用リモコン。 The determination unit determines that a surplus has occurred in the past hot water storage time when the maximum value of the past hot water storage amount in the predetermined period continues for a predetermined time or longer. The remote controller for a water heater according to claim 1, comprising:
  3. 　前記貯湯時間判定部は、前記過去の貯湯量の最大値が前記予め定められた時間以上継続した場合、前記過去の貯湯量が最初に前記最大値となった時間を第１開始時間とし、前記過去の貯湯量が最後に前記最大値となった時間を第１終了時間とするものであり、
    　前記表示生成部は、前記第１開始時間から前記第１終了時間前までの時間帯を、前記省エネポイントとして示すものである請求項２に記載の給湯機用リモコン。     When the maximum value of the past hot water storage amount continues for the predetermined time or more, the hot water storage time determination unit sets the time when the past hot water storage amount first reaches the maximum value as a first start time, The time when the past hot water storage amount finally reached the maximum value is the first end time,
    The hot water supply remote controller according to claim 2, wherein the display generation unit indicates a time zone from the first start time to the first end time as the energy saving point.
  4. 　前記特殊グラフは、前記予め定められた期間における前記給湯機の過去の貯湯量の推移を示すグラフを含み、
    　前記表示生成部は、前記特殊グラフにおいて、前記時間帯のグラフの表示を、前記時間帯以外のグラフの表示と異ならせるものである請求項３に記載の給湯機用リモコン。     The special graph includes a graph showing a transition of the past hot water storage amount of the water heater during the predetermined period,
    The remote controller for a hot water heater according to claim 3, wherein the display generation unit is configured to make the display of the graph of the time zone different from the display of the graph other than the time zone in the special graph.
  5. 　前記判定部は、前記予め定められた期間において前記貯湯量が減少してから次の沸き上げが開始される直前の最終貯湯量が、予め定められた最低確保湯量よりも多い場合に、前記過去の貯湯量に余剰が発生したと判定する貯湯量判定部を有する請求項１～４の何れか一項に記載の給湯機用リモコン。 When the final hot water storage amount immediately before the next boiling is started after the hot water storage amount has decreased in the predetermined period is greater than a predetermined minimum reserved hot water amount, The hot water supply remote controller according to any one of claims 1 to 4, further comprising a hot water storage amount determination unit that determines that surplus has occurred in the amount of hot water storage.
  6. 　前記貯湯量判定部は、前記最終貯湯量が前記最低確保湯量よりも多い場合に、前記予め定められた期間において前記貯湯量が減少し始めた時間を第２開始時間とし、前記最終貯湯量となった時間を第２終了時間とするものであり、
    　前記表示生成部は、前記第２開始時間から前記第２終了時間までの時間帯を、前記省エネポイントとして示すものである請求項５に記載の給湯機用リモコン。     The hot water storage amount determination unit, when the final hot water storage amount is larger than the minimum reserved hot water amount, a time when the hot water storage amount starts to decrease in the predetermined period is set as a second start time, and the final hot water storage amount Is the second end time,
    The remote controller for a hot water heater according to claim 5, wherein the display generation unit indicates a time zone from the second start time to the second end time as the energy saving point.
  7. 　前記表示生成部は、前記特殊グラフにおいて、前記貯湯量の余剰分を示すものであり、
    　前記貯湯量の余剰分は、前記最終貯湯量から前記最低確保湯量を減算したものである請求項６に記載の給湯機用リモコン。     The display generation unit indicates a surplus amount of the hot water storage in the special graph,
    The remote controller for a hot water heater according to claim 6, wherein the excess amount of the hot water storage is obtained by subtracting the minimum reserved hot water amount from the final hot water storage amount.
  8. 　ユーザによって操作される操作部をさらに備え、
    　前記表示生成部は、さらに、前記判定部によって特定された前記省エネポイントに基づいて、前記給湯機の運転に関するスケジュール改善案を生成するものであり、
    　前記表示部は、前記操作部の操作に応じて、前記表示生成部で生成された前記スケジュール改善案を表示する請求項１～７の何れか一項に記載の給湯機用リモコン。     It further comprises an operation unit operated by the user,
    The display generation unit further generates a schedule improvement plan regarding the operation of the water heater based on the energy saving point specified by the determination unit,
    The hot water supply remote controller according to any one of claims 1 to 7, wherein the display unit displays the schedule improvement plan generated by the display generation unit in accordance with an operation of the operation unit.
  9. 　前記特殊グラフには複数の前記省エネポイントが示されるものであり、
    　前記表示部は、前記操作部を介して前記複数の省エネポイントの何れかが選択された場合、前記選択された省エネポイントに対応する前記スケジュール改善案を表示するものである請求項８に記載の給湯機用リモコン。     The special graph shows a plurality of the energy saving points,
    The said display part displays the said schedule improvement plan corresponding to the said selected energy saving point, when either of these energy saving points is selected via the said operation part. Remote controller for water heater.
PCT/JP2015/061604 2015-04-15 2015-04-15 Remote controller for water heater WO2016166846A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007333251A (en) * 2006-06-12 2007-12-27 Chofu Seisakusho Co Ltd Hot-water storage type water heater
JP2009270735A (en) * 2008-04-30 2009-11-19 Toshiba Carrier Corp Hot water supply device
JP2012063070A (en) * 2010-09-16 2012-03-29 Hitachi Appliances Inc Water heater and display terminal
JP2013257141A (en) * 2013-08-28 2013-12-26 Mitsubishi Electric Corp Storage type water heater
JP2014149094A (en) * 2013-01-30 2014-08-21 Noritz Corp Hot water supply device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007333251A (en) * 2006-06-12 2007-12-27 Chofu Seisakusho Co Ltd Hot-water storage type water heater
JP2009270735A (en) * 2008-04-30 2009-11-19 Toshiba Carrier Corp Hot water supply device
JP2012063070A (en) * 2010-09-16 2012-03-29 Hitachi Appliances Inc Water heater and display terminal
JP2014149094A (en) * 2013-01-30 2014-08-21 Noritz Corp Hot water supply device
JP2013257141A (en) * 2013-08-28 2013-12-26 Mitsubishi Electric Corp Storage type water heater

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