JP2001183399A - Power monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power monitoring system with which a consumer can easily discriminate whether or not the power consumption or integral power consumption of a load is large. SOLUTION: A display 30 is installed indoors separately from a distribution board. The display 30 is provided with an F/V converter 39 which performs frequency/voltage conversion on rectangular wave signals from the V/F converter of a power detector; a storing section 36 which stores various kinds of data, such as target power consumption which is used as the target value of the power consumption, target integral power consumption which is used as the target value of the integral power consumption, and so on; and an arithmetic processing section 38 which computes the power consumption and integral power consumption based on the output of the F/V converter 39. The display 30 is also provided with a displaying section 32 which can display the power consumption, integral power consumption, target power, and target integral power consumption, etc.; an operating section 34 which selects the contents displayed on the displaying section 32 and performs various setting; and a clock section 37 which manages the present day and time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power monitoring system for displaying the used power and the integrated power of a load on a display provided outside a distribution board.

[0002]

2. Description of the Related Art A general watt-hour meter is used by an electric power company to detect the integrated electric power per customer. Since this type of integrated wattmeter is often installed outdoors, it is troublesome for the user to go outside to check the power consumption. Has also been proposed.

Japanese Unexamined Patent Application Publication No. 11-225442 discloses a system in which a distributed power source that generates power using a solar cell and a commercial power source are linked to each other. In a photovoltaic power generation system in which power is sold, the power used by a load is displayed on a display provided separately from a distribution board.

[0004]

The technique disclosed in the above publication has the advantage that the power consumption of the load can be checked indoors. However, it is possible for the consumer to determine whether the power consumption is too large. There was a problem that it was difficult to determine.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a power monitoring system that enables a consumer to easily determine whether or not the power used by a load or the integrated power is large. To provide.

[0006]

According to a first aspect of the present invention, there is provided a power distribution unit which is provided in a distribution panel and detects power used by a load, and a distribution panel. A display provided separately, the display comprising: an integrating means for integrating the used power detected by the power detecting means to obtain an integrated power amount; and a target power and an integrated power as target values of the used power. A storage unit for storing a target integrated power amount as a target value of the amount, and capable of displaying the used power detected by the power detection unit, the integrated power amount obtained by the integration unit, the target power, and the target integrated power amount. It is characterized by having a display unit, and if the display is arranged indoors separately from the distribution board, the used power and the integrated power amount and the target power and the target integrated power amount can be visually recognized indoors. So customers can get real-time Power consumption can be compared with target power, or cumulative power and target cumulative power can be compared, making it easy for consumers to determine whether power consumption and cumulative power are greater than their respective target values. Can be determined.

According to a second aspect of the present invention, in the first aspect of the present invention, the display is provided with a setting means for setting a target power and a target integrated power amount. The house can be set appropriately.

According to a third aspect of the present invention, in the first or the second aspect of the present invention, the display includes a power display mode for simultaneously displaying the used power and the target power on a display unit; Power display mode and an integrated power amount display mode for simultaneously displaying the power amount on the display unit, and a selection unit for selecting the power display mode and the integrated power amount display mode, so that the used power and the target power are displayed simultaneously, Further, since the integrated power amount and the target integrated power amount are displayed at the same time, it is easy to compare the target value with the actual value.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the display has a ratio display mode for simultaneously displaying the ratio of the integrated power amount to the target integrated power amount and the integrated power amount on a display unit, Since the selecting means can select the ratio display mode, when the ratio display mode is selected by the selecting means, the ratio of the integrated power amount to the target integrated power amount and the integrated power amount are displayed on the display unit. The consumer can easily determine how much the integrated power amount of the target has reached the target integrated power amount.

[0010] The invention of claim 5 is the invention of claims 1 to 4.
In the invention, the display device includes a clock unit that manages the current date and time, and includes a processing unit that resets the integrated power amount every one month after the start of integration based on the output of the clock unit. (1) The customer can easily know the integrated power amount in one-month units.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the processing means stores the integrated power amount obtained by the integrating means in a storage unit on a monthly basis, and stores the past power stored in the storage unit. Is displayed on the display unit as appropriate, so that the past integrated power amount in units of one month can be displayed on the display unit, and it is necessary to compare the current month with the past month regarding the integrated power amount. Home can be done easily.

According to a seventh aspect of the present invention, in the invention of the sixth aspect, the processing means stores the integrated power amount before reset of the integrating means as a target integrated power amount after reset in the storage unit. The electric energy can be used as a measure of the accumulated electric energy for the month.

According to an eighth aspect of the present invention, in the invention of the sixth aspect, the processing means stores at least a cumulative amount of electric power for at least one year in the past one month in a storage unit on a monthly basis, and resets the cumulative means in the same month of the previous year. Is set as the target integrated power amount after the reset, the integrated power amount of the same month of the previous year can be used as a standard of the integrated power amount of the current month.

According to a ninth aspect of the present invention, in the sixth aspect of the present invention, the processing means causes the storage unit to store at least a cumulative amount of electric power for at least the past one year for each month, and to reset the integrating means when detecting the power. If less than one year after the start, the integrated power for the previous month is set as the target integrated power after reset, and if more than one year after the start of power detection, the integrated power for the same month of the previous year is set as the target integrated power after reset. Therefore, the integrated power amount of the previous month or the integrated power amount of the same month in the previous year can be used as a standard of the integrated power amount of the current month.

According to a tenth aspect of the present invention, in the invention of the eighth or ninth aspect, the processing means converts the amount of electric power per hour obtained from the integrated electric energy of Computing means for calculating a value obtained by multiplying the time until the same time on the same day of the same month as an integrated reference power amount is provided, and the integrated reference power amount obtained by the calculating means is displayed on the display unit as the target integrated power amount. In the case of 3:00 p.m. on April 3, the integrated reference power amount from April 1 of the previous year to 3:00 p.m. on April 3 is displayed as the target integrated power amount. It becomes easy to compare the amount with the target integrated power amount.

According to an eleventh aspect of the present invention, in the first to tenth aspects of the present invention, the display includes at least a state in which the used power exceeds the target power and a state in which the integrated power exceeds the target integrated power. When one of the states is provided, a notifying unit is provided for notifying the outside that the used power has exceeded the target power, and the notifying unit has determined that the integrated power has reached at least one of the states in which the integrated power has exceeded the target integrated power. Since the notification is performed, the customer can easily recognize that the power consumption and the target integrated power amount have exceeded the respective target values, and the customer can easily promote energy saving.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 3, a power monitoring system according to this embodiment includes a single-phase three-wire commercial power supply (not shown), a current limiter (hereinafter, referred to as a limiter) 11, and a conductive breaker. Relay terminal block 1 to voltage lines L1, L2 and neutral line N connected via main breaker 12 comprising
4, a power detector 20 serving as a power detecting means is connected. The display 30 is connected to the power detector 20 via a three-core cable (for example, a three-core cable for CPEV and a three-core cable for AE). The limiter 11 is a breaker provided to limit a load current of a customer to a value not more than a contract value with a power company. A plurality of branch circuits are connected between the main circuit breaker 12 and the relay terminal block 14 between the voltage line L1 and the neutral line N and between the voltage line L2 and the neutral line N via the branch breakers 13, respectively. I have. That is, power is supplied to the load via the branch breaker 13.

The limiter 11, the main breaker 12, the branch breaker 13, the relay terminal block 14, and the power detector 20 are housed in a distribution board (house board) 1, and the display 30 is installed indoors separately from the distribution board 1. Is done.

The distribution board 1 includes two current transformers CT for detecting currents flowing through the voltage lines L1 and L2 between the limiter 11 and the main breaker 12.
1, CT2, and the current transformers CT1, C2
Instantaneous value of current detected at T2 and voltage line L1 and neutral line N
The power detector 20 having the signal conversion circuit 21 (see FIG. 5) for obtaining power using the instantaneous value of the line voltage between the voltage line L2 and the neutral line N is provided. As shown in FIGS. 3 and 4, each current transformer C
T1 and CT2 are connected to the power detector 20 via electric wires (for example, AWG electric wires) 16 and 16, respectively.

The signal conversion circuit 21 has the configuration shown in FIG. 5, and includes two multipliers 24a for obtaining the products of the respective current values detected by the respective current transformers CT1 and CT2 and the respective line voltages. , 24b, an adder 25 for adding the output values of the multipliers 24a, 24b,
An integrator 26 for smoothing the output of the adder 25;
V / F converter 2 that performs voltage-frequency conversion of the output voltage of No. 6 into a rectangular wave signal having a frequency corresponding to the output voltage and outputs the signal.
7 is provided.

The rectangular wave signal output from the V / F converter 27 is supplied to the signal line Ls and the ground line La of the three-core cable 15.
Is transmitted to the display 30 via the. In addition, the power detector 2
0 includes a power supply circuit 28 for obtaining a DC voltage for the signal conversion circuit 21 from a line voltage between the voltage line L1 and the neutral line N. The power supply circuit 28 includes a power supply line Le and a ground line L of the three-core cable 15.
The power is also supplied to the display 30 via a.

The display 30 has the configuration shown in FIG. 1 and includes an F / V converter 39 for converting the frequency of the rectangular wave signal from the V / F converter 26 of the power detector 20 into a voltage, A storage unit 36 for storing various data such as a target power as a target value and a target integrated power amount as a target of the integrated power amount, and a calculation for calculating the used power and the integrated power amount based on the output of the F / V converter 39 Processing unit 38
A display unit 32 capable of displaying the used power obtained by the arithmetic processing unit 38 (that is, the used power obtained by the power detector 20), the integrated power amount, the target power, the target integrated power amount, and the like; An operation unit 34 for selecting display contents on the display unit 32 and performing various settings, a clock unit 37 for managing the current date and time, and at least one of the used power amount and the integrated power amount are set to the respective targets. A notification unit 33 including a light emitting diode (warning LED) for performing an external notification when the value is exceeded is provided, and a backup power supply circuit 35 for supplying power in the event of an abnormality or a commercial power failure.
Here, the arithmetic processing unit 38 includes the F / V converter 3
The calculation is appropriately performed on the output of No. 9 and the data read from the storage unit 36, and the calculation result is displayed on the display unit 32.
Note that the arithmetic processing unit 38 calculates the integrated power amount based on the output of the F / V converter 39 and the output of the clock unit 37 (that is, integrates the used power detected by the power detector 20 to calculate the integrated power amount). (Determined) integration means.

The display unit 30 has the appearance shown in FIG. 2 and has two module dimensions (two times the width of three module dimensions and is attached to one switch box for two) in a large-angle continuous wiring device. (A size that can be achieved) is used. In other words, the mounting work is performed using the mounting frame in the same way as the embedded wiring device, and the mounting frame is fixed to the switch box and mounted on the wall, or the mounting frame is directly mounted on the wall with wood screws. It is possible to adopt a construction method such as, for example, clamping the peripheral portion of a mounting hole provided in a wall panel between a mounting bracket and a mounting frame hooked on the mounting frame. For this mounting frame, those standardized by JIS standards are used. Here, FIG. 2 shows an external appearance of a state where the body 31 of the display 30 is attached to the mounting frame and a plate 50 for an embedded wiring device is mounted on the front side of the mounting frame. is there. The plate 50 includes a rectangular frame-shaped plate frame 52 attached to the mounting frame using plate screws (not shown), and a front surface of the embedded wiring device having a double module size (here, the body 31 of the body 31). And a decorative plate frame 51 which has an opening window 51a for exposing the front surface) and is attached to the plate frame 52 so as to cover the front surface of the plate frame 52.

Since the above-described display 30 can be mounted on a wall surface separately from the distribution board 1, it can be installed at an arbitrary place in a house and is convenient.

On the front surface of the body 31 of the display 30, the display unit 32, a setting feed switch SW1 used for setting and selecting each setting item such as the current date and time and various data,
Numeric increase setting switch S for increasing the numerical value of each setting item
W2, a numerical value decrease setting switch SW3 for decreasing the numerical value of each setting item is provided. Further, on the front surface of the housing 31, a first display changeover switch SW4 for changing over the display on the display unit 32, a second display changeover switch SW5 for changing over the display on the display unit 32, and a light emitting diode ( There is also provided a light transmitting portion 33a disposed in front of the warning LED). The operation unit 34
Is composed of the switches SW1 to SW5. In the present embodiment, the setting feed switch SW1, the numerical value increase setting switch SW2, and the numerical value decrease setting switch S
W3 constitutes a setting means for setting the target power and the target integrated power amount.

Hereinafter, the operation of the arithmetic processing unit 38 of the display 30 will be described with reference to FIG.

When the power is turned on (S1), the arithmetic processing section 38 causes the display section 32 to display a clock setting display (S1).
2). When the setting of the current date and time (clock setting) is completed by operating the operation unit 34 (S3), the used power (instantaneous power) is set.
(S4), and then the integrated power amount is calculated (S5). Thereafter, a data setting process (S6), a data storage process (S7), a data comparison process (S8), and a data display process (S9) are sequentially performed, and the process returns to S4.

In the data setting process (S6), the process shown in FIG. 7 is performed.

That is, the arithmetic processing section 38 is operated by the operation section 34
It is determined whether or not the setting of the target power is permitted by monitoring the output from the controller (S62). If the setting of the target power is permitted, the target power is set by operating the operation unit 34 (S62). When the setting is completed (S63), the operation unit 3
It is determined whether or not the setting of the target integrated power amount is permitted by monitoring the output from No. 4 (S64). If the setting of the target integrated power amount is permitted, it is determined whether or not one year or more has elapsed since the start of the power detection based on the output of the clock unit 34 (S65). If it is, the accumulated power amount of the same month of the previous year (the accumulated power amount of the same month of the previous year is stored in the storage unit 36 in advance) is displayed on the display unit 32 as an initial value of the target accumulated power amount (S6).
7). On the other hand, if less than one year has passed since the start of power detection in S65, the result of the previous month (the accumulated power of the previous month is stored in the storage unit 36 in advance) is displayed on the display unit 32 as the initial value of the target accumulated power (S66). . And S6
It is determined whether the target integrated power amount has been changed from the initial value while the target integrated power amount is being displayed on the display unit 32 in step 6 or S67 (this change is performed by operating the operation unit 34) (S68). If the value has been changed from the initial value, the target integrated power amount is changed (S69), and the setting is completed (S161). If it is determined in S68 that there is no change from the initial value, the setting is completed (S161).

In the data storage processing (S7), the processing shown in FIG. 8 is performed.

That is, the arithmetic processing section 38 determines whether or not one month has elapsed from the start of the integration by the integrating means based on the output of the clock section 37 (S71). The accumulated power is reset and stored in the storage unit 36 as past data (S7).
2). It is determined whether the data setting is completed (S7).
3) When the data setting is completed, the target power is stored in the storage unit 36 (S74), and the target integrated power amount is stored in the storage unit 36 (S75). In the present embodiment,
The arithmetic processing unit 38 constitutes processing means for resetting the accumulated electric energy by the accumulating means every month, and the storage unit 36 stores the accumulated electric energy for the past 24 months every month. .

In the data comparison process (S8), the process shown in FIG. 9 is performed.

That is, the arithmetic processing section 38 compares the used power with the target power (S81), and turns on the warning LED of the notification section 33 when the used power exceeds the target power (S82). Further, the integrated power amount is compared with the target integrated power amount (S83), and when the integrated power amount exceeds the target integrated power amount, the warning LED of the notification unit 33 is turned on (S84). In addition, a calculation is performed to calculate an integrated reference power amount from the reference of the monthly integrated power amount to the present time (S8).
5) Compare the accumulated electric energy and the accumulated reference electric energy (S)
86). Then, when the integrated power amount exceeds the integrated reference power amount, the warning LED of the notification unit 33 is turned on (S
87). On the other hand, if the integrated power amount does not exceed the integrated reference power amount, the data comparison ends.

Also, in the data display processing (S9), FIG.
Is performed.

The operation processing section 38 determines the display mode by operating the operation section 34 or the like (S91), and simultaneously transmits the used power and the target power to the display section 32 according to the determined display mode as in S92. Display (power display mode), the integrated power amount and the target integrated power amount are simultaneously displayed as in S94 (integrated power display mode), the integrated power amount and the integrated reference power amount are displayed as in S95,
The past accumulated power amount is displayed as in S96 (past data display mode), and the current date and time is displayed as a clock in S97 (clock display mode).

Next, switching of the display state of the display unit 32 will be described with reference to FIG.

When the power is turned on (S21), first, a display for setting the current date and time is displayed (S22). When the setting of the current date and time is completed, the current date and time are displayed on the display unit 32 (S23).

Thereafter, when the first display changeover switch SW4 is pressed, the current used power (instantaneous power) and the target power are simultaneously displayed (S24). Next, when the first display changeover switch SW4 is pressed, the current month is displayed. Is displayed simultaneously with the current integrated power amount and the target integrated power amount (S25). After that, when the first display changeover switch SW4 is pressed, the integrated power amount at the current time of this month and the monthly integrated reference power amount are displayed (S26), and then the first display changeover switch SW4 is displayed.
Is pressed, the target integrated power amount and the ratio of the integrated power amount up to the present to the target integrated power amount are simultaneously displayed (S2).
7) Then, when the first display changeover switch SW4 is pressed, the display returns to the display of the current date and time (S23). That is, when the first display changeover switch SW1 is pressed, the display mode shifts to the next display mode.
1 constitutes a selection means for selecting a display mode. However, if the operation unit 34 is not operated for two minutes or more while the display of S25, S26, and S27 is being performed, the display mode returns to the display mode of S24. Here, the integrated reference electric energy in S26 is calculated by the arithmetic processing unit 3
8 is obtained by the arithmetic means provided in the processing means. The arithmetic processing means obtains the amount of power per hour in the same month of the previous year from the accumulated power in the same month of the previous year based on the outputs of the clock unit 37 and the storage unit 36, and calculates the amount of power per hour in the same month of the previous year until the same time in the same month of the previous year. The value obtained by multiplying the time is obtained as an integrated reference power amount.

The state in which the current date and time are displayed (S
When the setting feed switch SW1 is pressed for a predetermined time (2 seconds) or more in 23), a display for setting the current date and time is displayed (S22). In the state where the current power consumption and the target power are simultaneously displayed (S24), the setting feed switch S
When W1 is pressed, a display for setting the target power is displayed (S28), and when the setting feed switch SW1 is pressed while the display for setting the target power is displayed (S28), the current power consumption and the target power are displayed. Returns to the display state (S24). When the second display changeover switch SW5 is pressed while (S23 to S27) is displayed, the past data of the accumulated power is displayed (S29), and the past accumulated power is displayed ( When the first display changeover switch SW4 is pressed in S29), the display returns to the previously displayed state. Also,
When the setting feed switch SW1 is pressed in a state (S26) in which the integrated power amount at the present time of this month and the monthly integrated reference power amount (target integrated power amount) are displayed, a display for setting the monthly integrated target power amount. Is made (S30), and a display for setting the target integrated power amount is displayed (S30).
When the setting feed switch SW1 is pressed, the process returns to the state (S26) in which the integrated power amount at the present time of this month and the monthly integrated reference power amount are displayed.

The display mode in which the target integrated power amount and the ratio of the integrated power amount to the target integrated power amount up to the present as in S27 are simultaneously displayed is referred to as a ratio display mode.

Hereinafter, a specific display state of the display unit 32 on the display 30 will be described with reference to FIGS. In the display unit 32, the numerical display is of a segment type, and the type of the displayed information is the type display area D1 provided in the upper column or the type display area D3 provided in the lower column.
Are displayed in characters, and the numerical values are displayed in the numerical value display area D2 or D4. Further, among the numbers displayed in the numerical value display areas D2 and D4, the white numbers indicate that the numbers are blinking.

First, the display unit 32 for setting the current date and time
Will be described. Here, as an example, the date and time "8/22/07/99/99" as shown in FIG.
The case where "hour 3 minutes" is displayed will be described.

When the power is turned on, a display as shown in FIG. 13A is performed, and the numerical value of the year “99” flashes. Here, when the setting feed switch SW1 is pressed, the numerical value “1” of the month blinks as shown in FIG. 13 (b), so that the numerical value increase setting switch SW2 and the numerical value decrease setting switch SW3 are appropriately operated. The numerical value of the month is adjusted to “7” as in (c). Then, when the setting feed switch SW1 is pressed, the numerical value “1” of the day flashes as shown in FIG. 13D, so that the numerical value increase setting switches S2 and S3 are appropriately operated, as shown in FIG. To the day
2 ”. When the setting feed switch SW1 is pressed, the numerical value “0” flashes as shown in FIG. 13 (f). By appropriately operating the numerical value increase setting switch SW2 and the numerical value decrease setting switch SW3, as shown in FIG. The numerical value of the hour is adjusted to “8” as in a). When the setting feed switch SW1 is pressed, the minute value “00” blinks as shown in FIG.
2. By appropriately operating the numerical value decrease setting switch S3, the numerical value of the minute is set to “03” as shown in FIG. Then, by continuously pressing the setting feed switch SW1 for 2 seconds or more, the year, month, day,
When all the hours and minutes are determined and the first display changeover switch SW4 is pressed, the current power consumption is displayed in the numerical value display area D2 as shown in FIG. Displayed on D4.

On the other hand, after setting the minute value to "03" as shown in FIG.
When the button is pressed for a time shorter than the second, the numerical value “99” of the year blinks as shown in FIG. In short, by pushing the setting feed switch SW1 for less than 2 seconds,
The setting items for year, month, day, hour, and minute are sequentially selected. Further, even when any of the numerical values of month, day, hour, and minute is blinking, the date and time is determined by pressing the setting feed switch SW1 for 2 seconds or more.

Next, the display unit 3 for changing the current date and time
2 will be described. Here, as an example, a case where “8:03 on July 22, 1999” is changed to “9: 8 on August 2, 1999” will be described.

When the setting feed switch SW1 is pressed for two seconds or more with the display as shown in FIG.
The numerical value “99” of the year blinks as shown in FIG. here,
When the setting feed switch SW1 is pressed, the numerical value “7” of the month blinks as shown in FIG. 17C. Therefore, by appropriately operating the numerical value increase setting switch SW2 and the numerical value decrease setting switch SW3, FIG. Set the month value to “8” as shown. Then, when the setting feed switch SW1 is pressed,
Since the numerical value “22” of the day blinks as shown in FIG. 17E, the numerical value of the day is changed to “as shown in FIG. 17F” by appropriately operating the numerical value increase setting switch SW2 and the numerical value decrease setting switch SW3. 2 ”. When the setting feed switch SW1 is pressed, the numerical value “8” at the time flashes as shown in FIG.
By appropriately operating the numerical value reduction switch SW3, the numerical value at the time is set to "9" as shown in FIG. Then, when the setting feed switch SW1 is pressed, the minute value “03” blinks as shown in FIG. 18 (c). Therefore, by appropriately operating the value increase setting switch S2 and the value decrease setting switch S3, FIG. As shown in d), the value of the minute
8 ”. Then, the setting feed switch SW1 is set to 2
By continuously pressing for more than seconds, the year, month, day, hour, and minute are all fixed as shown in FIG.
By pressing the display changeover switch S4 of FIG.
As described above, the current power consumption is displayed in the numerical value display area D2, and the target power is displayed in the numerical value display area D4.

Next, a display example of the current power consumption and the target power will be described with reference to FIG. In the power display mode in which the used power and the target power are displayed, as shown in FIG. 19, the characters “current power consumption” are displayed in the type display area D1 in the upper column of the display unit 32, and the numerical display area in the upper column is displayed. The current power consumption is displayed on D2. The display unit 3
In the lower part of the second column, the characters "Estimated usage at night" are displayed in the type display area D2, and the target power is displayed in the lower numerical display area D4.

Here, a description will be given of a display example of the display section 32 in the case of setting a target power (a guideline for the amount of use at night). Here, the target power is changed from "1.2 KW" to "1.4 KW". Will be described.

When the setting feed switch SW1 is pressed for 2 seconds or more while the used power is displayed in the numerical display area D2 and the target power is displayed in the numerical display area D4 as shown in FIG. The numerical value "1.2" displayed in the numerical value display area D4 blinks as in b). Here, if the numerical value increase setting switch SW2 is kept pressed, the numerical value displayed in the numerical value display area D2 continuously increases, and the numerical value “2.0” blinks in the numerical value display area D4, for example, as shown in FIG. Then, if the numerical value decrease setting switch SW3 is kept pressed, the numerical value continuously decreases, and for example, the numerical value display area D4 shown in FIG.
The numerical value “1.5” flashes as shown in FIG. By pressing the numerical value decrease setting switch SW3 once, FIG.
The numerical value “1.4” blinks as in 0 (e). And
By pressing the setting feed switch SW1 for 2 seconds or more, the current power consumption and the target power are simultaneously displayed as shown in FIG. 21 and the target power is determined to be "1.4 KW".

FIGS. 22 and 23 show display examples when the integrated power amount and the target integrated power amount at the present time of this month are simultaneously displayed. Here, FIG. 22 is a display example in a case where the target integrated power amount has been set after the month following the month when the power detection by the arithmetic processing unit 38 was started, and the “type of power consumption” is displayed in the type display area D1. Is displayed, the numerical value “146” of the integrated power amount up to the current time of this month is displayed in the numerical value display area D2, and the type display area D
3 is displayed with the text "estimated usage amount for this month", and the numerical value display area D4 is displayed with a numerical value "178" of the target integrated power amount up to the current time of this month. Here, in the numerical display area D4, the power detection by the arithmetic
From the month to the twelfth month, the integrated power amount one month before the current month is displayed, and from the thirteenth month after the power detection by the arithmetic processing unit 38 is started, the integrated power amount one year ago is displayed. . In the display state of FIG. 22, if the switches SW1 to SW5 are not operated for two minutes or more, the mode automatically shifts to the power display mode in which the current used power and the target power are displayed. When the display changeover switch SW4 is pressed, the display shifts to the next display mode.

FIG. 23 shows a display example in the case where the target power has not been set since the month when the power detection by the arithmetic processing unit 38 was started and the month after the next month. Is displayed in the numerical display area D.
2, a numerical value “146” of the accumulated power amount at the source of this month is displayed, characters of “approximate current usage amount of this month” are displayed in the type display area D3, and a numerical value “0” is displayed in the numerical display area D4. You. In the display state of FIG. 23, if the switches SW1 to SW5 are not operated for two minutes or more, the mode automatically shifts to the power display mode in which the current used power and the target power are displayed. When the display changeover switch SW4 is pressed, the display shifts to the next display mode.

FIGS. 24 and 25 show display examples in which the integrated power amount at the present time of the current month and the target integrated power amount for one month of the current month are simultaneously displayed. FIG. 24 is a display example in a case where the target integrated power amount for one month is set after the month following the month when the power detection by the arithmetic processing unit 38 is started, and the “type of current power consumption” is displayed in the type display area D1. Is displayed in the numerical value display area D2, the numerical value “146” of the integrated power amount up to the current time of this month is displayed, and the character “Estimated monthly usage amount” is displayed in the type display area D3. The numerical value “478” of the target integrated power amount for one month in the current month is displayed in D4. Here, in the numerical value display area D4, from the third month to the twelfth month after the start of the power detection by the arithmetic processing unit 38, the integrated power amount for one month one month before that month is displayed. From the thirteenth month after the start of the power detection by the unit 38, the integrated power amount for one month of the same month one year ago is displayed. FIG.
In the display state of the above, the switch S
If W1 to SW5 are not operated, the mode automatically shifts to the power display mode in which the current used power and the target power are displayed, and if the first display changeover switch SW4 is pressed, the mode shifts to the next display mode. Also, the setting feed switch SW1 is set to 2
When pressed for more than a second, the display shifts to the display for setting the target integrated power amount for this month.

FIG. 25 is a display example in the case where the target integrated electric energy is not set in the month when the power detection by the arithmetic processing unit 38 is started and the next month, and the type display area D1
Is displayed with the text "Electricity usage this month", and the numerical value display area D2 is the numerical value "146" of the integrated electric energy up to the present time of this month.
Is displayed, and the characters “Estimated monthly usage” are displayed in the type display area D3, and the numerical value “0” is displayed in the numerical value display area D4.
Is displayed. In the display state of FIG. 25, if the switches SW1 to SW5 are not operated for two minutes or more,
The display mode automatically shifts to the power display mode in which the current power consumption and the target power are displayed, and the first display changeover switch SW
Pressing 4 shifts to the next display mode.

By the way, as shown in FIG. 26 (a), when the integrated power amount (186 kWh) at the current time of this month exceeds the target integrated power amount (178 kWh) up to the current time of this month, the warning LED constituting the notification unit 33 is turned on. And the light emitting display unit 33a
(In FIG. 26 (a), hatching on the light emitting display unit 33a indicates that the warning LED is lit). However, when the target integrated power amount is not set, such notification can be performed two months after the month when the power is turned on.

As shown in FIG. 26A, a state in which a notification is made by the light emitting display section 33a (a state in which the warning LED is lit).
When the second display changeover switch SW5 is pressed, FIG.
The warning LED is turned off as shown in FIG.
To a state where there is no notification by. However, if the integrated power amount exceeds the target integrated power amount after 6:00 am on the following day, the warning LED is lit again.

In the state where the current use power and the target power are displayed on the display unit 32 as shown in FIG.
When the display changeover switch SW5 is pressed, the past integrated electric energy is displayed as shown in FIG. That is, the characters “Past Monthly Electricity Consumption” are displayed in the type display area D1, the numerical value “499” of the integrated power amount for one month one month ago is displayed in the numerical value display area D2, and the numerical value display area D4 is displayed. The numerical values “99” and “6” of the previous month and year are displayed. When the first display changeover switch SW4 is pressed in the display state of FIG. 27B, the display returns to the state in which the current power consumption and the target power as shown in FIG. 27A are simultaneously displayed.
If the switches SW1 to SW5 are not operated for two minutes or more, the mode automatically shifts to the power display mode in which the current used power and the target power are displayed.

By operating the above-mentioned second display changeover switch SW5, it is possible to display the accumulated power amount for each of the past 24 months. Assuming that the present time is July 1999, the second display changeover switch SW5 is pressed when the integrated power amount for one month ago (June 1999) is displayed as shown in FIG. As shown in FIG. 28 (b), the integrated power amount for the month two months ago is displayed, and when the second display changeover switch SW5 is further pressed, the integrated power amount for the month three months ago is displayed as shown in FIG. 28 (c). The amount is displayed. Similarly, the second display changeover switch S
Each time W5 is pressed, the integrated power amount for the month before the displayed month is displayed, and as shown in FIG.
In the state where the accumulated power amount for the month of August
When the display changeover switch SW5 is pressed, the state returns to the state where the monthly accumulated electric energy of one month ago (June 1999) is displayed as shown in FIG.

Next, a description will be given of a display example in the case of setting the monthly target integrated power amount.

When the setting feed switch SW1 is pressed for two seconds or more while the current integrated power amount of the current month and the target integrated power amount of the month are displayed as shown in FIG. As shown in the figure, the characters of "Estimated monthly usage" are displayed in the type display area D3, and the numerical value "450" of the integrated power amount one month ago is displayed in the numerical value display area D4.

Here, a description will be given of a display example of the display unit 32 when the monthly target integrated power amount is set.

When the setting feed switch SW1 is pressed for two seconds or more in a state where the monthly target integrated power amount is displayed in the numerical value display area D2 as shown in FIG. 30A, the numerical value is displayed as shown in FIG. The numerical value “450” in the area D4 blinks,
By continuing to press the numerical value increase setting switch SW2, the numerical value of the numerical value display area D4 continuously increases (by continuing to press the numerical value decrease setting switch SW3, the numerical value continuously decreases). The numerical value “459” flashes as in c). Further, by continuing to press the numerical value increase setting switch SW2, the numerical value of the numerical value display area D4 continuously increases, and for example, as shown in FIG.
The numerical value “498” blinks as in 0 (d). afterwards,
By pressing the numerical value increase setting switch SW2 twice, the numerical value in the numerical value display area D4 increases by 2, and the numerical value “500” flashes as shown in FIG. By pressing the setting feed switch SW1 for 2 seconds or more, the integrated power amount at the current time of this month is displayed in the numerical value display area D2 as shown in FIG. 31 and the numerical value of the target integrated power amount for this month is set to “500”. "Is displayed in the numerical display area D4.
If the switches SW1 to SW5 are not operated for two minutes or more in the display state of FIG. 31, the mode automatically shifts to the power display mode in which the current used power and the target power are displayed.

In the power monitoring system of the present embodiment described above, the indicator 30 is disposed indoors separately from the distribution board 1 so that the used power and the integrated power and the target power and the target integrated power can be measured indoors. Customers can compare the power used with the target power in real time,
It is possible to compare the integrated power amount with the target integrated power amount,
The consumer can easily determine whether the power consumption and the integrated power amount are larger than the respective target values, and it is easy to promote energy saving. For example, by setting the power consumption during sleep as the target power and confirming it during the next day's sleep, it is possible to discover that the user has forgotten to turn off the power.

Here, since the display 30 is provided with the setting means for setting the target power and the target integrated power amount, the consumer can appropriately set the target power and the target integrated power amount. Therefore, it is possible to easily change the setting of the target value between a month in which the used power and the integrated power amount are large and a month in which the amount is small.

Moreover, the display unit 30 in the present embodiment simultaneously displays the used power and the target power, and also displays the integrated power and the target integrated power simultaneously.
The comparison between the target value and the actual result becomes easy. The display 30
By displaying in the ratio display mode, the ratio of the integrated power amount with respect to the target integrated power amount and the integrated power amount are displayed on the display unit 30. The customer can easily determine whether the time has been reached.

Further, in this embodiment, since the accumulated electric energy by the accumulating means is reset every month after the start of the accumulation, the customer can easily know the accumulated electric energy on a monthly basis. . In addition, since the past integrated power amount in one-month units can be displayed on the display unit 32,
The customer can easily compare the current month with the past month with respect to the integrated power amount. In addition, by storing the integrated power amount before reset of the integrating means as the target integrated power amount after reset in the storage unit 36, the integrated power amount of the previous month can be used as a standard of the integrated power amount of the current month. Also,
In the above processing means, when resetting the integrating means, the integrated power amount of the same month of the previous year is set as a target of the integrated power amount of the current month by setting the integrated power amount of the same month of the previous year as the target integrated power amount after the reset. be able to. In addition, since the integrated reference power amount obtained by the calculation means can be displayed on the display unit 32 as the target integrated power amount, for example, if the current date and time is 3:00 pm on April 3,
Since the integrated reference power amount from the first day of the month to April 3 at 3:00 pm is displayed as the target integrated power amount, it is easy to compare the current integrated power amount with the target integrated power amount.

Further, when the used power exceeds the target power,
When the integrated power amount reaches at least one of the states in which the integrated power amount exceeds the target integrated power amount, the notification is performed by the notification unit 33. Therefore, it is easy for the consumer to determine that the used power and the target integrated power amount have exceeded the respective target values. It is easy for the consumer to promote energy saving.

[0067]

According to a first aspect of the present invention, there is provided a power detecting means disposed in a distribution board for detecting power used by a load, and a display provided separately from the distribution board. The display stores integration means for integrating the used power detected by the power detection means to obtain an integrated power amount, target power as a target value of the used power, and target integrated power amount as a target value of the integrated power amount. And a display unit capable of displaying the used power detected by the power detection unit, the integrated power amount obtained by the integration unit, the target power, and the target integrated power amount. If it is installed indoors separately from the distribution board, the used power, the integrated power, the target power, and the target integrated power can be visually checked indoors, so the customer can compare the used power with the target power in real time. Or integrated power and target integration Can compare the force, there is an effect that it is possible to use power and integral power consumption is large whether the customer for each target value easily determined.

According to a second aspect of the present invention, in the first aspect of the present invention, the display is provided with a setting means for setting a target power and a target integrated power amount. There is an effect that the house can be set appropriately.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the display includes a power display mode for simultaneously displaying the used power and the target power on a display unit; Power display mode and an integrated power amount display mode for simultaneously displaying the power amount on the display unit, and a selection unit for selecting the power display mode and the integrated power amount display mode, so that the used power and the target power are displayed simultaneously, Further, since the integrated power amount and the target integrated power amount are displayed at the same time, there is an effect that the comparison between the target value and the actual result becomes easy.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the display has a ratio display mode for simultaneously displaying the ratio of the integrated power amount to the target integrated power amount and the integrated power amount on the display unit, Since the selecting means can select the ratio display mode, when the ratio display mode is selected by the selecting means, the ratio of the integrated power amount to the target integrated power amount and the integrated power amount are displayed on the display unit. There is an effect that the consumer can easily determine how much the integrated power amount of the target has reached the target integrated power amount.

The invention of claim 5 is the invention of claims 1 to 4
In the invention, the display device includes a clock unit that manages the current date and time, and includes a processing unit that resets the integrated power amount every one month after the start of integration based on the output of the clock unit. There is an effect that the customer can easily know the integrated power amount in one-month units.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the processing means stores the integrated power amount obtained by the integrating means in a storage unit on a monthly basis, and stores the past power stored in the storage unit. Is displayed on the display unit as appropriate, so that the past integrated power amount in units of one month can be displayed on the display unit, and it is necessary to compare the current month with the past month regarding the integrated power amount. There is an effect that the house can be easily performed.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the processing means stores the integrated power amount before reset of the integrating means in the storage unit as the target integrated power amount after reset. There is an effect that the electric energy can be used as a measure of the accumulated electric energy for the month.

According to an eighth aspect of the present invention, in the sixth aspect of the present invention, the processing means stores at least a cumulative amount of electric power for at least one year in the past one month in a storage unit on a monthly basis, and resets the cumulative means in the same month of the previous year. Is set as the target integrated power amount after reset, so that there is an effect that the integrated power amount of the same month of the previous year can be used as a guide of the integrated power amount of the current month.

According to a ninth aspect of the present invention, in the sixth aspect of the present invention, the processing means causes the storage unit to store at least a cumulative amount of electric power for at least the past year for each month and reset the integrating means, and If less than one year after the start, the integrated power for the previous month is set as the target integrated power after reset, and if more than one year after the start of power detection, the integrated power for the same month of the previous year is set as the target integrated power after reset. Therefore, there is an effect that the integrated power amount of the previous month or the integrated power amount of the same month of the previous year can be used as a guide of the integrated power amount of the current month.

According to a tenth aspect of the present invention, in accordance with the eighth or ninth aspect of the present invention, the processing means converts the amount of electric power per hour obtained from the accumulated amount of electric power of the same month in the previous year based on the output of the clock section. Computing means for calculating a value obtained by multiplying the time until the same time on the same day of the same month as an integrated reference power amount is provided, and the integrated reference power amount obtained by the calculating means is displayed on the display unit as the target integrated power amount. In the case of 3:00 p.m. on April 3, the integrated reference power amount from April 1 of the previous year to 3:00 p.m. on April 3 is displayed as the target integrated power amount. There is an effect that comparison between the amount and the target integrated power amount becomes easy.

According to an eleventh aspect of the present invention, in the first to tenth aspects of the present invention, the display includes at least a state in which the used power exceeds the target power and a state in which the integrated power exceeds the target integrated power. When one of the states is provided, a notifying unit is provided for notifying the outside that the used power has exceeded the target power, and the notifying unit has determined that the integrated power has reached at least one of the states in which the integrated power has exceeded the target integrated power. Since the notification is performed, the consumer can easily recognize that the power consumption and the target integrated power amount have exceeded the respective target values, and this has an effect that the customer can easily promote energy saving.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a display device according to an embodiment.

FIG. 2 shows the appearance of the above display device, (a) is a front view,
(B) is a bottom view and (c) is a side view.

FIG. 3 is a system configuration diagram of a power monitoring system according to the embodiment.

FIG. 4 is a configuration diagram of a main part of the above.

FIG. 5 is a block diagram of the power detector according to the first embodiment;

FIG. 6 is an explanatory diagram of the operation of the above display device.

FIG. 7 is an explanatory diagram of the operation of the above display device.

FIG. 8 is an explanatory diagram of the operation of the above display device.

FIG. 9 is an explanatory diagram of the operation of the above display device.

FIG. 10 is an explanatory diagram of the operation of the above display device.

FIG. 11 is an explanatory diagram of a display example of the above display device.

FIG. 12 is an explanatory diagram of a display example of the above display device.

FIG. 13 is an explanatory diagram of a display example of the above display device.

FIG. 14 is an explanatory diagram of a display example of the above display device.

FIG. 15 is an explanatory diagram of a display example of the above display device.

FIG. 16 is an explanatory diagram of a display example of the above display device.

FIG. 17 is an explanatory diagram of a display example of the above display device.

FIG. 18 is an explanatory diagram of a display example of the above display device.

FIG. 19 is an explanatory diagram of a display example of the above display device.

FIG. 20 is an explanatory diagram of a display example of the above display device.

FIG. 21 is an explanatory diagram of a display example of the above display device.

FIG. 22 is an explanatory diagram of a display example of the above display device.

FIG. 23 is an explanatory diagram of a display example of the above display device.

FIG. 24 is an explanatory diagram of a display example of the above display device.

FIG. 25 is an explanatory diagram of a display example of the above display device.

FIG. 26 is an explanatory diagram of a display example of the above display device.

FIG. 27 is an explanatory diagram of a display example of the above display device.

FIG. 28 is an explanatory diagram of a display example of the above display device.

FIG. 29 is an explanatory diagram of a display example of the above display device.

FIG. 30 is an explanatory diagram of a display example of the above display device.

FIG. 31 is an explanatory diagram of a display example of the above display device.

[Explanation of symbols]

 32 display unit 33 notification unit 34 operation unit 35 arithmetic circuit 36 storage unit 37 clock unit 38 arithmetic processing unit 39 F / V converter

Continuing from the front page (72) Inventor: Mutual Ichimura, 1048, Kazuma, Kazuma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Katsumi Yokoyama 1-4-1, Shinsenri Nishimachi, Toyonaka City, Osaka National Housing Industry Shares Inside the company (72) Inventor Makoto Nakayama 1-1-4 Shinsenri-Nishimachi, Toyonaka-shi, Osaka National Housing Industry Co., Ltd.

Claims (11)

[Claims] 1. A power detection means provided in a distribution board for detecting power used by a load, and a display provided separately from the distribution board, wherein the display is provided with a power detection means. An integrating means for integrating the used power detected by the above to obtain an integrated power amount; a storage unit for storing a target power as a target value of the used power and a target integrated power amount as a target value of the integrated power amount; A power monitoring system comprising: a display unit capable of displaying the used power detected by the unit, the integrated power amount obtained by the integrating unit, the target power, and the target integrated power amount. 2. The power monitoring system according to claim 1, wherein the display is provided with setting means for setting a target power and a target integrated power amount. 3. The display device has a power display mode for simultaneously displaying the used power and the target power on a display unit, and an integrated power amount display mode for simultaneously displaying the integrated power amount and the target integrated power amount on the display unit. The power monitoring system according to claim 1, further comprising a selection unit configured to select a power display mode and an integrated power amount display mode. 4. The display device has a ratio display mode for simultaneously displaying the ratio of the integrated power amount to the target integrated power amount and the integrated power amount on a display unit, and the selection means can select the ratio display mode. 4. The power monitoring system according to claim 3, wherein: 5. The display device includes a clock unit that manages the current date and time, and a processing unit that resets the integrated power amount every one month from the start of integration of the integration unit based on the output of the clock unit. The power monitoring system according to any one of claims 1 to 4, wherein: 6. The processing means stores the integrated power amount obtained by the integrating means in a storage unit on a monthly basis, and appropriately displays the past integrated power amount stored in the storage unit on a display unit. The power monitoring system according to claim 5, wherein: 7. The power monitoring system according to claim 6, wherein the processing unit stores the integrated power amount before reset of the integration unit in the storage unit as a target integrated power amount after reset. 8. The processing means causes the storage unit to store at least a cumulative power amount for at least one year in the past one month every month. When resetting the cumulative means, the cumulative power amount of the same month in the previous year is set to the target cumulative power amount after the reset. The power monitoring system according to claim 6, wherein the power monitoring system is set as: 9. The processing means stores the accumulated electric energy for at least the past one year in a storage unit on a monthly basis, and resets the integrating means when less than one year after the start of the power detection. 7. The integrated power amount is set as a target integrated power amount after reset, and when more than one year has passed since the start of power detection, the integrated power amount for the same month in the previous year is set as the target integrated power amount after reset. A power monitoring system as described. 10. The integrated processing unit calculates a value obtained by multiplying the amount of power per hour obtained from the integrated power amount of the same month of the previous year based on the output of the clock unit by the time until the same time of the same day of the previous year in the same month of the previous year. The power monitoring system according to claim 8, further comprising a calculation unit that calculates the amount, and displaying the integrated reference power amount obtained by the calculation unit on a display unit as a target integrated power amount. 11. The display device according to claim 1, further comprising: a notifying unit for notifying to the outside when at least one of a state in which the used power exceeds the target power and a state in which the integrated power exceeds the target integrated power. The power monitoring system according to claim 1, wherein: