JPH11248752A - Display apparatus for power consumption amount - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display apparatus by which the saving of a power consumption amount can be promoted effectively by a method wherein, in order to save the power consumption amount as an important problem for energy saving measures, the state or the like of an own daily power consumption amount and an own present power consumption amount with reference to an energy-saving target value can be recognized by a consumer in real time inside a room. SOLUTION: A display apparatus is composed of a power-value detecting mechanism A which is used to detect a consumed power value, a computing mechanism B by which information is computed and processed in order to increase power-saving consciousness on the basis of the power value detected by the power-value detecting mechanism A and a display mechanism C by which the information computed and processed in the computing mechanism B is displayed on a screen. At this time, in the display mechanism C, a difference or the like between an own daily power consumption amount and a power- saving target value is displayed so as to be easy to understand in real time on a liquid crystal screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power consumption display device that enables a consumer to recognize power consumption in a room in real time in order to promote power saving measures at home, a company, a factory, and the like. Things.

[0002]

2. Description of the Related Art In recent years, energy conservation measures have been regarded as an important issue in order to prevent global warming. In particular, there is a strong demand nationwide to reduce power consumption in general households, companies, factories, and the like. ing. Since the increase in power consumption in households in recent years has been increasing every year due to improvements in living standards and changes in lifestyles, it is necessary to first reduce power consumption in homes and other energy conservation measures. Have been.

[0003] As measures to reduce power consumption, it is necessary for home electric appliance manufacturers to make energy-saving structures for various electric appliances themselves such as air conditioners, televisions, fluorescent lamps, water heaters, and rice cookers, and to save electricity by electric power consumers. It is. However, although some research and development by manufacturers on energy-saving structures of electrical equipment itself has progressed to some extent, the current situation is that no measures have been taken by consumers to save power.

[0004]

[Problems to be Solved by the Invention] In order to promote power saving for consumers, it is essential to make consumers strongly aware of power saving, and the national and local governments also use the media to raise awareness of power saving. Although the company has budgeted a large amount for this and is conducting publicity campaigns on energy saving and power saving, the results have not been satisfactory and consumers are not aware of power saving.

[0005] In order to raise consumers' awareness of power saving, it is first necessary to make the consumers aware of their own power consumption in real time. However, at present, the only way for consumers to know their own power consumption is to look at an integrated wattmeter installed outdoors. The consumer only knows the result of the meter reading performed once, and the consumer himself hardly checks the integrated power meter installed outdoors. However, no matter how much power saving awareness is provided, consumers cannot raise their awareness of power saving.

Accordingly, an object of the present invention is to provide a consumer with his / her daily power consumption, setting of a power saving target value, and a power saving target value in order to reduce power consumption, which is an important issue of energy saving measures. The present invention provides a power consumption display device capable of easily recognizing the current state of power consumption and the like in real time in a room in real time, thereby effectively promoting reduction of power consumption. It is in.

[0007]

According to a first aspect of the present invention, there is provided a power consumption display device for detecting a power consumption value, comprising: a power value detection mechanism for detecting a power consumption value; and a power consumption value detected by the power value detection mechanism. And a display mechanism for displaying on the screen the information that has been processed by the calculation mechanism, based on the information processing.

According to a second aspect of the present invention, the power value detecting mechanism has a function of detecting a voltage value by an instrument transformer having a primary side connected to an inlet-side wiring of a switchboard, and a primary-side power supply function for the inlet-side wiring of the switchboard. The current value detecting function has a current value detecting function by an instrument current transformer connected in series on the side, and the calculating mechanism calculates a power value based on the voltage value information and the current value information from the power value detecting mechanism. It is characterized by having the function of performing

The invention according to claim 3 is characterized in that the power value detecting mechanism has a function of taking out the amount of power consumption from the measuring device of the integrating wattmeter.

[0010]

Next, an apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of the apparatus of the present invention. As shown in the drawings, the device of the present invention comprises a power value detection mechanism A for detecting a power consumption value, and a power consumption value detected by the power value detection mechanism A.
An arithmetic mechanism B for arithmetically processing information for performing display for raising awareness of power saving and a display mechanism C for displaying information arithmetically processed by the arithmetic mechanism B on a screen. The arithmetic mechanism B includes a storage mechanism. D is attached.

The power value detection mechanism A has a function of detecting a voltage value and a current value by a meter transformer and a meter current transformer connected to the inlet side wiring of a switchboard installed indoors, or an integrated circuit. It has a function to extract the power consumption value from the metering device of the wattmeter.

That is, as shown in FIG. 2, by connecting the primary side of the instrument transformer 3 to the wiring 1 on the inlet side of the switchboard 2, a voltage value is taken out from the secondary side thereof, and Is connected in series with the primary side of the current transformer for instrument 4 to extract a current value from the secondary side.

The clamp ammeter 5 shown in FIG. 2 is a convenient ammeter for detecting a current value. That is, as shown in FIG. 2, the clamp ammeter 5 has a structure in which a coil 7 is wound around an openable / closable annular core 6, the openable / closable annular core 6 is opened, and the entrance of the switchboard is provided in the annular core 6. Pass the side wiring 1. As a result, when an alternating current is flowing through the wiring 1, a voltage is generated in the coil 7. Therefore, by reading this with the voltmeter 8, the current value can be known. According to such a clamp ammeter 5, it can be mounted with one touch, and the current value can be detected easily and easily.

The voltage value information and the current value information detected by the power value detection mechanism A are sent to an arithmetic mechanism B.
In the arithmetic mechanism B, a power value is calculated, and on the basis of the calculated power value and information for power saving stored in the storage mechanism D, a display mechanism C described later is used to perform a display for raising awareness of power saving. Various types of information are processed.

When an integrating wattmeter is used as the power value detecting mechanism A, as shown in FIG. 1, information on the power value is extracted from the measuring device 10 of the integrating wattmeter 9 installed in each house. The extracted power value information is sent to the arithmetic mechanism B, where the information for performing the above-described display for raising the power saving awareness by the display mechanism C is arithmetically processed. When the information on the power value is extracted from the metering device 10 of the integrating wattmeter 9, the calculation of the power value in the calculation mechanism B is unnecessary.

The display mechanism C is based on the power value calculated by the above-described calculation mechanism B or the power value directly detected by the power detection mechanism A. For example, a liquid crystal display has a function of displaying, in a real-time, easy-to-understand manner, various items described below that can make the consumer strongly aware of the reduction in power consumption.

(A) Real-time trend display of power consumption The power consumption for each day or several days is represented in real time by a line graph as shown in FIG.
The vertical axis is displayed as KW.

(B) Display of the trend record of the specified period The trend record of the previous day or the same day of the previous year, for example, is saved according to the above (a), and this is double-displayed with the real-time trend display of the current day. By comparing them, the increase or decrease of the power consumption is displayed.

(C) Cumulative value display for a specified period For example, as shown in FIG. 4, the power consumption cumulative value (Kwh) of a specified day is displayed in a graph or a numerical value, and the daily power consumption of the current month is displayed. By displaying the amount and monthly aggregated value, the monthly power consumption of this year is shown, and the energy saving effect is confirmed by double-displaying the graph of the previous year and the graph of this year. It should be noted that the above display is more effective if the amount is displayed.

(D) KWh display of power consumption or monetary conversion display The power consumption is displayed in either KWh display or monetary conversion display, or both.

(E) Setting the target value for a specified period and displaying the difference between the actual value and the target value For example, by setting the target value for the day, the target value is displayed on the screen, and the trend record for the day is displayed. This is confirmed by double display, and the difference from the target value is displayed numerically.

(F) Alarm display when the specified target value is exceeded When the specified target value is exceeded, a warning or encouragement is displayed to the consumer. (g) Display by numbers and / or graphs

[0023]

As described above, according to the present invention,
Allows power consumers to easily understand the difference between their daily power consumption and the target power saving values in real time indoors, thereby promoting power saving measures in homes, companies, factories, etc. Therefore, an industrially useful effect that can reduce power consumption can be achieved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an apparatus of the present invention.

FIG. 2 is an explanatory diagram showing an outline of a clamp ammeter.

FIG. 3 is a diagram showing a display example by the display mechanism of the present invention.

FIG. 4 is a diagram showing another display example by the display mechanism of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switchboard 2 Wiring 3 Instrument transformer 4 Instrument current transformer 5 Clamp ammeter 6 Ring iron 7 Coil 8 Ammeter 9 Integrated power meter 10 Metering device

Claims (3)

[Claims] 1. A power value detection mechanism for detecting a power consumption value, and a calculation for processing information for performing a display for raising awareness of power saving based on the power consumption value detected by the power value detection mechanism. A power consumption display device comprising: a mechanism; and a display mechanism for displaying information processed by the calculation mechanism on a screen. 2. The power value detection mechanism includes a voltage value detection function using an instrument transformer having a primary side connected to an inlet side wiring of a switchboard, and an instrument having a primary side connected in series to an inlet side wiring of the switchboard. A current value detection function using a current transformer, and the calculation mechanism has a function of calculating a power value based on voltage value information and current value information from the power value detection mechanism. The power consumption display device according to claim 1. 3. The power consumption display device according to claim 1, wherein the power value detection mechanism has a function of extracting power consumption from a metering device of an integrating wattmeter.