KR20030085657A - A electric energy consumption fee display using watt hour meter - Google Patents

Abstract

PURPOSE: An apparatus for displaying an electricity cost is provided to give an user's convenience by calculating the electricity cost of a watt-hour meter and displaying the calculated electricity cost. CONSTITUTION: An apparatus for displaying an electricity cost includes a clock circuit(20), a camera(30), a number recognizer(40), an electricity cost calculator(50), a reset operator(70), and a display(60). The clock circuit(20) provides date information and time information. The camera(30) picks up an image of a number board of a watt-hour meter(10). The number recognizer(40) detects the number from the image of the number board. The electricity cost calculator(50) calculates the electricity cost. The reset operator(70) resets the electricity cost calculator(50). The display(60) displays the electricity cost.

Description

A electric energy consumption fee display using watt hour meter}

The present invention relates to a power rate display device for displaying a power rate calculation based on the power consumption by using an integrated power meter for detecting the power consumption so that the user can check it.

The integrated wattmeter is a minute that indicates the amount of power used, which is known as the eddy current rotating plate rotates according to the use of electric power, and counts the rotation of the eddy current rotating plate with a counter, and the charge according to the used electric power is not displayed. If you want to know the charges based on the amount of electricity used, you need to check the separate rate conversion table, which is very cumbersome and inconvenient, and you need to keep a separate price conversion table. There are many cases of misuse and distrust caused by electricity bills between suppliers and suppliers.

An electric charge display device for solving this problem is disclosed in Korean Patent Registration No. 93-6093. The power rate display device includes a rotation detector for detecting the rotation of the eddy current rotating plate and outputting a detection signal, a square wave converter for converting the output signal of the rotation detector into a square wave signal, and counting and counting the output signal of the square wave converter. A microprocessor that calculates and outputs a power charge based on the value, clears the counted value according to the reset signal, and counts again, a reset unit that outputs a reset signal to the microprocessor according to a user's operation, and the microprocessor And a counting unit for counting and outputting a pulse signal according to the power rate to be output, and a display unit 60 for displaying the power rate according to the output signal of the counting unit.

However, the above-described conventional power rate display device has the following problems.

A. Since it is configured to detect the rotation of the eddy current rotating plate and output the detection signal, in order to detect the rotation of the eddy current rotating plate, the integrated power meter must be disassembled and the sensor of the rotating detection part should be installed. This will occur. In other words, if the seal of the integrated power meter is dismantled, there may be a risk of manipulation of the detection reliability of the power consumption. A new procedure is required for the electric charge billing institution to correct the error range of the integrated power meter and to sew the seal. It had to be a problem that was difficult to apply in reality.

B. Actually charged electricity rates are seasonal and time-differentiated, whereas the preceding power rate display device does not have a technical configuration that can handle different power rates by season and time. There is a problem that only the fee is calculated and displayed.

C. Since the disclosed power rate display device detects the eddy current rotating plate of the integrated power meter, an additional circuit such as a square wave converter is required to eliminate the influence of the noise signal, and continuously to detect and process the rotation of the rotating plate at all times. Since all power of the power rate display device must be turned on, power consumption is a big problem.

D. Since the disclosed power rate display device must be connected by a wire between the rotation detection unit detecting the rotation of the eddy current rotating plate and the display unit 60 displaying the electric charge, the integrated power meter is installed outdoors or when the charge display unit 60 is installed indoors. Since it is often arranged around the switchboard has a problem that the length of the wiring is long and the construction is difficult.

The present invention devised to solve the above-mentioned conventional problems is easy to install without disassembling or damaging the integrated power meter, and it is possible to accurately calculate the power rates applied to the differential between seasons and time zones, and without continuous power supply. In addition, it is possible to accurately calculate the electricity bill, so that the power consumption is low, and wiring connection and construction can be minimized, and the purpose of the present invention is to provide a simple electricity bill display device.

1 is a circuit block diagram showing a configuration of a first embodiment of the present invention,

2 is a circuit block diagram showing a configuration of a second embodiment of the present invention;

3 and 4 are circuit block diagrams showing two scheme configurations of the third embodiment of the present invention, respectively.

Two embodiments of the power rate display device of the present invention for achieving the above object will be described with reference to the drawings.

Hereinafter, the present invention will be described in more detail as a preferred embodiment based on the accompanying drawings.

1 is a circuit block diagram showing a configuration of a first embodiment of the present invention, FIG. 2 is a circuit block diagram showing a configuration of a second embodiment of the present invention, and FIGS. 3 and 4 are each a third embodiment of the present invention. A circuit block diagram showing the two schemes is shown.

First embodiment

In the first embodiment of the present invention, as shown in FIG.

Clock circuit unit 20 for providing date and time information,

An imaging unit 30 for capturing an image of the number plate 12 of the integrating wattmeter 10 that displays the power consumption outside of the integrating wattmeter 10;

Numeric recognition unit 40 for recognizing the number by the captured image,

Power rate calculation processing unit 50 for processing the power rate according to the date and time by processing the number recognized by the number recognition unit 40 in advance with the algorithm stored in advance according to the date and time information provided by the clock circuit unit 20 ,

And a display unit 60 for displaying the power rate according to the result calculated by the power rate calculation processing unit 50.

The imaging unit 30 preferably applies a CCD (Charge Coupled Device) solid-state imaging device, and installs it facing the numeric plate of the integrating power meter 10.

The fonts of the numeric plate of the integrated power meter 10 which are generally spread are distributed in standardized fonts rather than various fonts and are limited to about 7 digits so that the resolution of the imaging unit 30 does not have to be high.

In addition, the number recognition unit 40 uses a character recognition program that is commonly used, so that only a number from 1 to 0 to recognize the processing, it is possible to significantly reduce the amount of memory data compared to the general character recognition program have.

The power rate calculation processing unit 50 may use a microcomputer that stores and executes a program capable of computing.

The display unit 60 may use seven segment display devices such as a liquid crystal display, an EL element, and an LED display.

On the other hand, the power rate display device of the present invention is preferably provided with a mode input unit 80 for distinguishing the power rate calculation mode for general, educational and industrial to be able to distinguish the power rate applied differentially according to the user selection.

The first embodiment of the present invention configured as described above operates as follows.

When the user sets the power rate calculation mode applied through the mode input unit 80, the number indicating the amount of power of the computer wattmeter 10 captured by the imaging unit 30 is recognized and used by the number recognition unit 40. The numerical value of the amount of power KWh is applied to the power rate calculation processing unit 50, and the power rate calculation processing unit 50 receives time information from the clock circuit unit 20 and calculates the rate by applying different rate rates according to the date and time. The accumulation process information is processed, and the accumulated processing information thus processed is numerically displayed on the display unit 60 as a power rate, so that the power rate used by the customer can be confirmed.

Second embodiment

In the second embodiment of the present invention, as shown in FIG.

Clock circuit unit 20 for providing date and time information,

Rotating plate groove sensor 130 for detecting the groove of the eddy current rotating plate 14 is installed outside the integrated power meter 10,

A signal processor 50 for shaping the groove-detected signal into a digital signal;

The power consumption is calculated based on the digital signal applied by the signal processor 50, and the power consumption is processed by a pre-stored algorithm according to the date and time information provided by the clock circuit unit 20 to calculate the power rate according to the date and time. Power rate calculation processing unit 50 to process,

It is composed of a display unit 60 for displaying the power rate according to the result calculated by the power rate calculation processing unit 50.

The rotating plate groove detecting sensor 130 preferably applies an infrared sensor having a transmitting and receiving element for transmitting infrared rays and receiving infrared rays reflected by the infrared rays, and detecting a groove formed in the rotating plate 14 using a proximity sensor. You may.

Also in the configuration of the second embodiment, it is preferable that the mode input unit 80 for distinguishing the power rate calculation mode for general, educational and industrial is provided so as to be able to distinguish the power rate applied differentially according to the user's selection.

When configured as described above, the groove of the rotating plate groove sensor 130 detects the groove of the eddy current rotating plate 14 of the integrated power meter 10 and after shaping the detected signal into a digital signal in the signal processor 50, the power rate calculation processing unit ( 50), the power rate calculation processing unit 50 accumulates the power rate and displays it on the display unit 60 by the same process as in the first embodiment, thereby confirming the power rate used by the customer. To help.

Third embodiment

On the other hand, in addition to the two embodiments of the present invention described above, in order to be able to install the display unit 60 for the user's convenience, it may be applied in the same configuration as the following third embodiment.

An encoder 91 for encoding the information output from the power rate calculation processing unit 50 of the two embodiments for signal transmission, a transmitter 92 for transmitting the encoded signal processed by the encoder 91 as a radio wave, A receiver 95 for receiving radio waves transmitted from the transmitter 92, a decoder 96 for decoding the signal received by the receiver 95 and deriving it into power rate data; and a decoder decoded by the decoder 96. The display unit 60 further displays a power bill data in numerical value.

In this configuration, the power rate information accumulated in the power rate calculation processing unit 50 is encoded by the encoder 91 and then transmitted by radio in the transmission unit 92, and the radio wave is received by the reception unit 95 to receive the decoder 96. In this case, the display unit 60 displays the numerical value of the electric charge.

On the other hand, the transmitter 92 and the receiver 95 can be designed by changing the configuration position.

That is, the clock circuit unit 20 for providing the date and time information, the imaging unit 30 for capturing an image of the numeric plate of the integrated power meter 10 indicating the power consumption from the outside of the integrated power meter 10, the captured image A number recognition unit 40 for recognizing a number by an image, an encoder 91 for encoding a number information recognized by the number recognition unit 40 for signal transmission, and an encoded signal processed by the encoder 91 A transmission unit 92 for transmitting a radio wave, a reception unit 95 for receiving the radio wave transmitted from the transmission unit 92, a decoder 96 for decoding the signal received at the reception unit 95 and outputting numerical information, Power rate calculation processing unit 50 for processing the power charge according to the date and time by processing the numerical information output from the decoder 96 according to the date and time information provided by the clock circuit unit 20 in advance, the power Fee calculation It may be constructed as a reset operation unit 70, and display unit 60 for displaying the power charge data decoded by the decoder 96 to the value for initializing the electric power from the charge processing part 50.

With this configuration, the power rate data is transmitted by the transmitter 92 as an encoded signal, received by the receiver 95 and decoded by the decoder 96, and then subjected to arithmetic processing by the power rate calculation processor 50 through the power rate calculator 50. Then, the display unit 60 displays the electric charge.

On the other hand, the present invention is not limited to the three embodiments described above can be applied by common knowledge in the art.

For example, the power rate display device of the present invention may be configured to reduce power consumption by automatically turning on and off the power supplied to the entire circuit. In this case, the timer may be performed by the time information provided by the clock circuit unit 20.

As described above, since the present invention can be installed without disassembling or damaging the integrated power meter 10, the installation cost is low and the labor of labor can be reduced.

In addition, it is possible to accurately calculate the electricity rate applied to the difference between the season and time zone,

In addition, it is possible to accurately calculate the electricity bill without a continuous power supply, so that the power consumption can be reduced.

In addition, since the sensing part of the integrated power meter 10 side and the indoor side display part 60 can be separated and configured as a wireless transmission method, the wiring connection and construction can be minimized. have.

Claims (7)

Clock circuit unit 20 for providing date and time information, An imaging unit 30 for capturing an image of a numeric plate of the integrating wattmeter 10 displaying power consumption outside of the wattmeter 10; Numeric recognition unit 40 for recognizing the number by the captured image, Power rate calculation processing unit 50 for processing the power rate according to the date and time by processing the number recognized by the number recognition unit 40 in advance with the algorithm stored in advance according to the date and time information provided by the clock circuit unit 20 , Reset operation unit 70 for initializing the power rate processed by the power rate calculation processing unit 50, And a display unit (60) for displaying the power rate according to the result calculated by the power rate calculation processing unit (50). The apparatus of claim 1, wherein a mode input unit (80) is provided for distinguishing a power rate calculation mode for general use, education use, and industrial use. Clock circuit unit 20 for providing date and time information, Rotating plate groove sensor 130 for detecting the groove of the eddy current rotating plate 14 is installed outside the integrated power meter 10, A signal processor 50 for shaping the groove-detected signal into a digital signal; The power consumption is calculated based on the digital signal applied by the signal processor 50, and the power consumption is processed by a pre-stored algorithm according to the date and time information provided by the clock circuit unit 20 to calculate the power rate according to the date and time. Power rate calculation processing unit 50 to process, Reset operation unit 70 for initializing the power rate processed by the power rate calculation processing unit 50, Power rate display device comprising a display unit 60 for displaying the power rate according to the result calculated by the power rate calculation processing unit (50). 4. The power rate display device according to claim 3, further comprising a mode input unit (80) for distinguishing power rate calculation modes for general, educational, and industrial purposes. The power rate display device according to claim 1, wherein the entire power source is configured to detect power rate information intermittently by being automatically turned on and off repeatedly by a timer function based on time information provided from the clock circuit unit (20). Clock circuit unit 20 for providing date and time information, An imaging unit 30 for capturing an image of a numeric plate of the integrating wattmeter 10 displaying power consumption outside of the wattmeter 10; Numeric recognition unit 40 for recognizing the number by the captured image, Power rate calculation processing unit 50 for processing the power rate according to the date and time by processing the number recognized by the number recognition unit 40 in advance with the algorithm stored in advance according to the date and time information provided by the clock circuit unit 20 , Reset operation unit 70 for initializing the power rate processed by the power rate calculation processing unit 50, An encoder 91 for encoding the information output from the power rate calculation processing unit 50 for signal transmission; Transmitter 92 for transmitting the encoded signal processed by the encoder 91 by radio waves, Receiving unit 95 for receiving a radio wave transmitted from the transmitting unit 92, A decoder 96 that decodes the signal received by the receiver 95 and derives the power rate data; And a display unit (60) for numerically displaying the power rate data decoded by the decoder (96). Clock circuit unit 20 for providing date and time information, An imaging unit 30 for capturing an image of a numeric plate of the integrating wattmeter 10 displaying power consumption outside of the wattmeter 10; Numeric recognition unit 40 for recognizing the number by the captured image, An encoder 91 for encoding the number information recognized by the number recognition unit 40 for signal transmission; Transmitter 92 for transmitting the encoded signal processed by the encoder 91 by radio waves, Receiving unit 95 for receiving a radio wave transmitted from the transmitting unit 92, A decoder 96 which decodes the signal received by the receiver 95 and outputs numerical information; A power rate calculation processing unit 50 for processing the power rate according to the date and time by processing numerical information output from the decoder 96 according to the date and time information provided by the clock circuit unit 20 in advance; Reset operation unit 70 for initializing the power rate processed by the power rate calculation processing unit 50, And a display unit (60) for numerically displaying the power rate data decoded by the decoder (96).