JP2011174782A - Cogeneration device and output method of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a calculation amount for acquiring a consumption amount in an arbitrary period. <P>SOLUTION: An input target value set previously at the beginning of each month is used as a target value. A measured value by measurement at a predetermined period is subtracted, and the acquired difference is used as a new target value. This is periodically repeated, and when the day changes, (target value) data is stored together with date data. When the month changes, the target value is replaced with an input target value. When output is performed, the consumption amount in the arbitrary period is acquired by reading pieces of data corresponding to the start date and the end date of the arbitrary period, and calculating the difference between the both. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combined heat and power supply apparatus, and relates to a technique for accumulating and displaying the amount of energy consumed and generated.

  Conventionally, a proposal relating to a hot water supply apparatus capable of displaying the amount of water or gas used has been made (for example, see Patent Document 1). FIG. 6 is a block diagram showing a conventional combined heat and power supply device described in Patent Document 1. As shown in FIG.

  In FIG. 6, a measuring means 600 periodically measures the amount of gas and the amount of water and outputs a measured value. The integrating means 601 integrates this measured value. The time measuring means manages the year / month / day / hour / minute / second and outputs the date / time data, but the storage means 603 stores it in association with the value integrated by the integrating means 601. The stored data is displayed on the display means 604 together with the date and time, so that the consumption value for each period can be displayed to the user. The period-by-period integration management unit 605 instructs the storage unit 603 to store the date / time and the integrated value in association with each other for a predetermined period, and also resets the integrated value and restarts the integration. Plays the role of instructing the start.

  Therefore, the integration unit 601 normally integrates the measurement values output from the measurement unit 600. However, when a reset & integration start signal is received from the period-specific integration management unit 605, the integration value is once cleared to zero. , Restart integration from zero. This action makes it possible to obtain an integrated value for each predetermined period.

  With the above configuration, in the conventional configuration, since the integrated value and the date and time are stored in association with each other for a predetermined period, the user can display the integrated value in an arbitrary period, that is, the consumption of gas and water on the display unit 604 It becomes possible to know.

Japanese Patent No. 3061215

  However, the conventional configuration has the following problems.

  In order to see the consumption during a predefined period (month, week, day), it is sufficient to read the data for the corresponding period from the storage means 603, but to see the consumption during an undefined period, a separate calculation is required. Is necessary and cannot respond flexibly. For example, in order to see the consumption for the past month from today, it is necessary to sum up the integrated values for each day corresponding to the past month.

  An object of the present invention is to solve the above-mentioned conventional problems, and to provide a combined heat and power device capable of acquiring an integrated value for an arbitrary period more flexibly.

In order to solve the conventional problem, the information output device of the combined heat and power unit of the present invention includes a target setting device that inputs a target value of energy consumption in a predetermined period, a time setting, and a predetermined time A calendar device that outputs a restart instruction, a storage instruction, and date / time data for each period, a measuring device that measures consumption periodically, and the target setting device that outputs a restart instruction from the calendar device An input target value is taken in as a target value, subtracted from the target value every time a measurement value output from the measuring device is input, and the difference is output as a new target value, and a storage instruction from the calendar device Is input, the storage device stores the target value output by the difference device in association with the date and time data output by the calendar device, and erases the target value input by the user. A data generation device that extracts date and time data indicating the arbitrary period in order to calculate an amount, reads a target value corresponding to the date and time data from the storage device, and calculates consumption of the arbitrary period; and the data An output device for outputting the calculation result of the generation device is provided.

  With this configuration, date / time data indicating an arbitrary period can be extracted, and the consumption amount of the arbitrary period can be calculated from the corresponding data. Therefore, the amount of calculation can be greatly reduced compared to the conventional example.

  According to the combined heat and power supply apparatus of the present invention, the integrated amount in an arbitrary period can be obtained with a smaller number of calculations, so that it is possible to respond more flexibly to user requests.

Block diagram of a combined heat and power device according to Embodiment 1 of the present invention The flowchart which shows the algorithm until it memorize | stores the data in Embodiment 1 of this invention The flowchart which shows the algorithm until it reads and displays the stored data in Embodiment 1 of this invention The schematic diagram which shows the consumption of the arbitrary periods in Embodiment 1 of this invention The characteristic figure which shows the consumption trend of the arbitrary periods in Embodiment 1 of this invention Block diagram showing a conventional combined heat and power unit

  According to a first aspect of the present invention, there is provided a target setting device that inputs a target value of energy consumption in a predetermined period, and a calendar that measures time and outputs a restart instruction, a storage instruction, and date / time data for each predetermined period An apparatus, a measuring apparatus that periodically measures consumption, and a measurement that is output by the measuring apparatus when an input target value output from the target setting apparatus is input as a target value when a restart instruction is input from the calendar apparatus Each time a value is input, a difference device that subtracts from the target value and outputs the difference as a new target value; and when a storage instruction is input from the calendar device, the target value output by the difference device is A storage device that stores the date and time data output by the calendar device in association with the date and time data indicating the arbitrary time period in order to calculate consumption for the arbitrary time period input by the user. A thermoelectric device comprising: a data generation device that reads a target value corresponding to the date and time data from the storage device and calculates consumption for the arbitrary period; and an output device that outputs a calculation result of the data generation device. It is a co-feed device.

  In a second aspect of the invention, in particular, in the first aspect of the invention, the measuring device measures the amount of power consumed in the home, the amount of power purchased / sold from / to the power company, and the amount of power generated by the combined heat and power unit. is there.

  In a third aspect of the invention, in particular, in the first aspect of the invention, the measuring device uses all gas consumption in the home, gas consumption consumed by the combined heat and power supply device for power generation, and gas consumption consumed for hot water supply. Is to measure.

In a fourth aspect of the invention, in particular, in the first aspect of the invention, the measuring device measures water consumption in the home.

  In a fifth aspect of the invention, in particular, in the first aspect of the invention, when the arbitrary period input by the user spans calendar units such as year, month, and day, only the start date and time and end date and time of the arbitrary period In addition, the intermediate date and time of the arbitrary period can be extracted.

  In a sixth aspect of the invention, in particular, in the first aspect of the invention, the output device is a liquid crystal device capable of displaying numerical values, graphs and the like.

  According to a seventh aspect of the invention, in the first aspect of the invention, the output device is an output device having an interface for outputting to a network.

  According to an eighth aspect of the present invention, there is provided a step of inputting an energy consumption amount or a target value of the energy generation amount in a predetermined period and outputting an input target value; A step of outputting a storage instruction and date and time data; a step of measuring and outputting consumption periodically; and when the restart instruction is input, the input target value is taken as a target value, and the measurement value is input Each time the target value is subtracted and the difference is output as a new target value; when the storage instruction is input, the target value is stored in association with the date and time data; and input by the user In order to calculate the consumption for the given period, the date data indicating the arbitrary period is extracted, the target value corresponding to the date data is read, and the consumption for the arbitrary period is calculated. A step of calculation, numerical the calculation result, or an output method of cogeneration apparatus characterized by comprising a step of outputting a graph.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1) “Normal movement”
FIG. 1 is a block diagram showing a cogeneration apparatus according to Embodiment 1 of the present invention. Here, the cogeneration apparatus is a cogeneration apparatus that can supply both electric power and heat (hot water) using a fuel cell (not shown) as a core.

  In FIG. 1, a calendar device 101 is a device that measures year / month / day / hour / minute / second based on a calendar. When a predetermined period (for example, year, month, week, day, hour, etc.) is reached, a storage instruction or a restart instruction is issued. The period is output.

  The measuring device 104 is a means for measuring the consumption amount of utility in the home such as gas, electric power, water, etc., and outputs the measured value at every predetermined period. The target setting device 102 is a means for the user to set a target value for an arbitrary period.

  The difference device 103 receives the target value for an arbitrary period set in advance by the target value setting device 102 and the measured value, and subtracts the measured value from the target value every time the measured value is input.

  When the storage device 105 receives a storage instruction from the calendar device 101, the storage device 105 stores the difference value output from the difference device 103 in association with time data indicating a period.

  The data generation device 106 is a device that calculates the amount of consumption during the period requested by the user in the output device 107, reads out data corresponding to the start and end date and time of the period specified by the user from the storage device 105, By taking the difference, data for a specified period is generated.

  The output device 107 includes a key input device and a display device that provide a user interface (both are not displayed), receives a specified period from the user, and displays data corresponding to the specified period. The output device 107 has an interface with a network constructed by TCP / IP, etc. in addition to a display device, receives a period from the user via the network, and outputs data corresponding to the designated period. It doesn't matter if you do it.

  Hereinafter, the operation of the cogeneration apparatus according to the present embodiment will be described with reference to FIGS. FIG. 2 is a flowchart showing operations until difference data and time data are stored in association with each other in the present embodiment. FIG. 3 is a flowchart showing operations until data is read from the storage device and displayed in the present embodiment.

  Here, for the sake of explanation, an example will be described in which a target value for monthly power consumption is set and the difference value of the power consumption is saved for each day. Of course, the present invention is not limited to accumulation and display of power consumption, and the power may be changed to water and gas, and the combined heat and power supply apparatus can be applied to the amount of power generation, the amount of power purchased, and the amount of recovered heat. Moreover, in a solar cell system, you may apply to the amount of electric power sales.

  In FIG. 2, first, the user sets a target value for power consumption for one month in advance using the target value setting device 102 (step 201). This is the target value for keeping this month's consumption within this number. Since the power consumption for one month has been input, the target values for the week and day are also calculated based on the calendar information based on this value. Conversely, weekly and monthly consumption may be calculated from the daily target value.

  Next, the difference device 103 sets the input target value acquired in step 201 (step 202).

  Then, the measuring device 104 acquires the power consumption periodically (the cycle may be fixed depending on the device) and outputs the measured value (step 203).

  Each time the measurement value is input, the difference device 103 subtracts the measurement value from the target value held therein. Further, the obtained difference is replaced with a new target (step 204).

  Thereafter, in step 205, it is determined whether there is a storage instruction from the calendar device 101. If there is a storage instruction, in step 206, the currently held target value and the calendar device output it. The date and time data is stored in the storage device 105 in association with each other.

  Further, at step 207, it is determined whether or not there is a restart instruction. If there is no restart instruction, the process returns to step 203. However, if there is a restart instruction, the process returns to step 202 to initialize the target value with the input target value.

  As described above, the feature of the present embodiment is that there is a power consumption target value input in advance on the first day of every month, and the result obtained by subtracting the measured value for each day is stored in the storage device in association with the date / time data.

  In other words, instead of storing the integrated value of the measured value for each day in association with the date / time data, the measured value is sequentially subtracted from the value set as the target value, and the progress of each day is stored in association with the date / time data. It is.

  On the other hand, FIG. 3 is a flowchart showing an operation for displaying the accumulated data in the present embodiment.

  An arbitrary period in which the user wants to see the consumption is input from a key input device (not shown) of the output device 107 (step 301).

  With this period as an input, the data generation device 106 extracts the start date and time and the end date and time, which are the date and time necessary for calculating the consumption during that period (step 302).

  Then, the data corresponding to the start date and time and the end date and time are read from the storage device 105 (step 303). At this time, if the start date and time and the end date and time are within the same month, the corresponding data may be read (FIG. 4A). However, when the start date / time and end date / time cross the month, the data of the last day (January 31) of the month including the start date / time and the start date (February 1) of the end date / time are also read simultaneously (FIG. 4 ( b)).

  Then, the consumption is calculated using the read data (step 304). When the arbitrary period is included in the month (FIG. 4A), the start date / time data may be subtracted from the end date / time data. However, if an arbitrary period spans the month, add the data obtained by subtracting the start date / time data from the end-of-month data including the start date / time and the data obtained by subtracting the end date / time data from the month start data including the end date / time. (FIG. 4B).

  Finally, the calculation result is output to the display device of the output device 107 as the consumption for the period specified by the user (step 304).

  As described above, in the present embodiment, when a user designates an arbitrary period, data corresponding to the start date and end date is read, and the data corresponding to the arbitrary period is obtained by using the data. Can do. It is clear that consumption for an arbitrary period can be obtained with a small amount of calculation compared to the conventional example.

  In other words, in the conventional example, data is stored in calendar units of the month, week, and day, so if you want to display data that deviates from the calendar unit, you must repeat the calculation using the data in the calendar unit. It is clear that the data cannot be obtained. For example, in order to obtain consumption for the past month in the middle of the month, in the conventional example, the daily data for the past month must be read and summed 30 times, but in this embodiment, subtraction is performed. A desired value can be obtained by two times and one summation (FIG. 4B).

  Further, FIG. 5 shows a graph of consumption trends by reading out data for each day of January in the output device 107. In FIG. 5, the hatched portion indicates consumption, and the white portion indicates the amount of power not yet consumed. This graph is a graph obtained by reading out the data stored every day, but if the user sees this graph, the power consumption trend in January can be understood at a glance. In this graph, it can be seen that at the end of the month, power was consumed more than the target value (the part painted in gray), but there were days that consumed more power than usual at the beginning of the month (1) and during the month (2). This is because the.

  In this way, it is important for the user to know the consumption trend on a monthly basis, so that it is possible to reflect on the days when the consumption is prominent and lead to further energy saving.

  This embodiment is also useful as a data storage method for creating a graph showing consumption trends, and it is possible to create a graph showing consumption trends simply by reading the data and graphing it.

  The combined heat and power device according to the present invention is useful as a combined heat and power device that can easily obtain consumption for an arbitrary period and graph consumption trends, and can show the consumption and consumption trends. In addition, it can be applied not only to household combined heat and power supply devices but also to applications such as showing energy consumption and consumption trends in general energy equipment such as solar power generation devices and hot water supply devices.

DESCRIPTION OF SYMBOLS 101 Calendar apparatus 102 Target setting apparatus 103 Difference apparatus 104 Measurement apparatus 105 Storage apparatus 106 Data generation apparatus 107 Output apparatus 600 Measurement means 601 Accumulation means 602 Time measurement means 603 Storage means 604 Display means 605 Periodic integration management means

Claims (8)

A target setting device that inputs a target value of energy consumption in a predetermined period, a calendar device that measures the time and outputs a restart instruction, a storage instruction, and date / time data for each predetermined period, and periodically When a measurement device that measures consumption and a restart instruction is input from the calendar device, an input target value output from the target setting device is captured as a target value, and a measurement value output from the measurement device is input. The difference device that subtracts from the target value and outputs the difference as a new target value, and the date and time when the calendar device outputs the target value output by the difference device when a storage instruction is input from the calendar device. A storage device that stores the data in association with the data, and extracts date / time data indicating the arbitrary period in order to calculate consumption for the arbitrary period input by the user; The target value corresponding to the reading from the storage device, a data generating unit for calculating the consumption of the arbitrary period, cogeneration apparatus characterized in that it comprises an output device for outputting the calculation result of the data generation device. The cogeneration device according to claim 1, wherein the measuring device measures the amount of electric power consumed in the home, the amount of electric power purchased from / to the electric power company / the amount of electric power sold, and the amount of electric power generated by the cogeneration device. 2. The measurement device according to claim 1, wherein the measuring device measures all gas consumption in the home, gas consumption consumed by the combined heat and power supply device for power generation, and gas consumption consumed for hot water supply. 3. Combined heat and power device. The cogeneration apparatus according to claim 1, wherein the measuring device measures water consumption in a home. The data generation device may extract not only the start date / time and end date / time of the arbitrary period but also the intermediate date / time of the arbitrary period when the arbitrary period input by the user spans calendar units such as year, month, and day. The combined heat and power supply apparatus according to claim 1, which is possible. The cogeneration apparatus according to claim 1, wherein the output device is a liquid crystal device capable of displaying numerical values, graphs, and the like. The cogeneration apparatus according to claim 1, wherein the output device is an output device having an interface for outputting to a network. Input the target value of energy consumption or energy generation amount in a predetermined period, output the input target value, and measure the time, restart instruction, storage instruction, date and time data every predetermined period A step of outputting, a step of measuring and outputting consumption periodically, and taking the input target value as a target value when the restart instruction is input, and the target value every time the measurement value is input Subtracting from the output and outputting the difference as a new target value, storing the target value in association with the date and time data when the storage instruction is input, and consumption for an arbitrary period input by the user In order to calculate the amount, the date and time data indicating the arbitrary period is extracted, the target value corresponding to the date and time data is read, and the consumption amount in the arbitrary period is calculated. When numerical said calculation result or output method of cogeneration apparatus characterized by comprising a step of outputting a graph.