KR101490860B1 - Watt hour meter having function for displaying charges - Google Patents

Abstract

According to an embodiment of the present invention, a tariff-type meter installed in a power supply line and measuring a power consumption amount and converting the amount of power consumption into a usage fee includes a measurement unit installed in the power supply line and measuring the power consumption amount; A storage unit for storing charge information including a charge period; A processing unit, connected to the measurement unit and the storage unit, for determining the charge period according to the usage amount and calculating the charge using the usage amount and the charge period; And a display unit for displaying the charge period corresponding to the usage fee and the usage amount.

Description

{WATT HOUR METER HAVING FUNCTION FOR DISPLAYING CHARGES}

The present invention relates to a tariff meter, and more particularly, to a tariff meter installed in a power supply line to measure a power consumption amount and to convert a power consumption amount into a usage fee.

Generally, at home, office, and various buildings, there is installed a total power meter (meter) installed at the power supply company at the front of the utility line which is drawn from the power supply line and distributed to each home or office, The total power consumption is expressed in watts (W) and kilowatts (kW). The amount of power consumption displayed on the meter is calculated by calculating the per-watt fee per watt for the amount of power consumed, and then notifying each household of the amount of power consumed by the meter reading staff of the electric utility company visiting the house every month, Only after looking at the bill was we able to figure out the total amount of electricity and electricity used for the month in the home.

Therefore, even if the electric charge is wrongly charged, the consumer must bear it, and since it is difficult to know how much electricity is used in the case of the consumer, there is a problem that the awareness of the electric power saving becomes insufficient.

Korean Unexamined Patent Application Publication No. 1996-0024388. July 7, 1996.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tariff-type meter in which a user can confirm the usage fee according to the amount of power consumption in real time.

It is another object of the present invention to provide a tariff type meter that can alert a consumer to a warning based on the amount of power consumption to induce interest in power saving.

Other objects of the present invention will become more apparent from the following detailed description and drawings.

According to an embodiment of the present invention, a tariff-type meter installed in a power supply line and measuring a power consumption amount and converting the amount of power consumption into a usage fee includes a measurement unit installed in the power supply line and measuring the power consumption amount; A storage unit for storing charge information including a charge period; A processing unit, connected to the measurement unit and the storage unit, for determining the charge period according to the usage amount and calculating the charge using the usage amount and the charge period; And a display unit for displaying the charge period corresponding to the usage fee and the usage amount.

The tariff meter includes an alarm unit connected to the processing unit and generating a signal related to the usage amount to a consumer; And a button unit for stopping the signal, and the alarm unit may generate a signal when the charge period corresponds to a predetermined charge period.

Wherein the tariff meter comprises: an input unit for inputting a cap charge through the customer; An alarm unit connected to the processing unit and generating a signal related to the usage amount to a customer; And a button unit for stopping the signal, and the alarm unit may generate a signal when the usage charge exceeds the upper limit charge.

The alarm unit may include a switch capable of shutting off power supply through the power supply line.

The alarm unit may be a lamp that emits light of different colors as the usage increases.

According to an embodiment of the present invention, the consumer can easily recognize the real-time charge for the amount of electric power with the naked eye. In addition, when entering the electric power usage fee zone, the consumer can be easily perceived through a warning sound or a color change, thereby lowering the electric power consumption charge of the consumer and leading to efficient energy consumption management.

1 is a view schematically showing a tariff meter according to an embodiment of the present invention.
Fig. 2 is a block diagram showing the connection state of the tariff meter shown in Fig. 1. Fig.
FIG. 3 is a flowchart showing an operation process of the tariff meter shown in FIG. 1. FIG.

Hereinafter, embodiments of the present invention will be described in more detail with reference to FIGS. 1 to 3 attached hereto. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description.

Generally, electric energy is an important energy source not only in everyday life but also in industrial field. It is equipped with hydropower, thermal power and nuclear power to produce electric energy to produce electric energy, To each home. In recent years, it has produced electric energy through small- and medium-sized power generation facilities such as solar power, wind power, and tidal power, and it is usefully supplied to ordinary homes and industrial sites.

Particularly, various methods and means for reducing electrical energy, which is the largest part of everyday life, are being developed, and each individual who uses the electric energy should pay much attention and effort to reduce unnecessary power consumption of the electric appliance It is leaning. Such unnecessary saving of electric energy leads to reduction of electric charge, and practical efforts are being made to reduce power consumption in factories, buildings, offices, restaurants and general households where power consumption is high.

Therefore, it is necessary to have a tariff-type meter that enables the consumer to check the electricity bill in real time, and to warn the user when the target amount is exceeded by comparing the target amount with the actual electricity bill, thereby inducing economical power consumption pattern. In addition, when the domestic power consumption exceeds a predetermined amount, a progressive tax is applied. Accordingly, a detailed description will be given of the charge calculation based on the amount of electricity used and the price indicator meter applicable to each time period in which the electricity consumption is large.

FIG. 1 is a view schematically showing a tariff meter according to an embodiment of the present invention. 1 is a block diagram illustrating a connection state of a tariff meter according to an embodiment of the present invention. 1 and 2, the tariff meter 100 includes a measuring unit 10, a storage unit 30, an input unit 40, a processing unit 20, an alarm unit 60, and a display unit 50. [ . ≪ / RTI > Also, the tariff meter 100 may have a reset button 90 for resetting the user after checking the power usage fee.

Here, the tariff meter 100 may further include a communication unit having a built-in PLC (Power Line Communication) function. This function enables interworking with a home computer, an interphone having a power management function, and other electronic devices. At this time, not only PLC but also CAN communication, RS-232C, RS-422, RS-485, USB, RF system (wireless), etc. may be used as the communication method of the tariff meter 100.

In addition, the tariff meter 100 can be directly connected to a distribution board in which single-phase 220V or three-phase 380V is used, or can be supplied with power from a mercury battery such as 2016/2032 or an AA / AAA type battery or a 9V snap battery.

The measuring unit 10 is installed on a power supply line, and can measure the power consumption of the power consumer in real time. The measuring unit 10 may be a power meter or a power meter installed in a space where a power consumer consumes electric power.

The measuring unit 10 can measure the used power by a resistance method in which the voltage applied to the current measuring resistor differs according to the load, and the detected voltage is detected to detect the amount of current. Also, the measuring unit 10 can measure the used electric power by using the current sensor in a completely insulated state. That is, the used power can be measured by a method of detecting the amount of current with a secondary voltage generated by a coil (current sensor) enclosed in a conductor. Here, the current sensor is simply a donut-shaped ring type, but a detachable sensor may be used so that the donut shape can be separated and easily contact the lead wire. The detachable sensor can look like the shape of a grounding resistance meter or a current meter (hook meter) and can be shaped like a gripper. The details of the measuring unit 10 are obvious to those of ordinary skill in the art and will not be described in detail.

The storage unit 30 basically stores charge information on the amount of usage. The storage unit 30 can be connected to the input unit 40 and the user can store various data in the storage unit 30 through the input unit 40. [ For example, the input unit 40 may be connected to the computer via a separate cable (e.g., USB), and the user may transmit data in the computer to the input unit 40 through operation of the computer, Or the like. The input unit 40 may be a memory drive in which a memory card (for example, an SD memory card) can be accommodated, or a USB port into which a USB storage device can be inserted, The data in the memory card or the USB storage device can be stored in the storage unit 30 after the data is inserted into the drive or the USB port. With this method, the charge information or the like stored in the storage unit 30 can be updated with the newly changed charge information.

The storage unit 30 may store charge information for each season, time period, and progressive period. For example, if the domestic power consumption exceeds a predetermined amount, the progressive tax is applied, so that the storage unit 30 can store the electricity charge information data for each section of the usage amount. Table 1 below shows charge information for each section of power consumption.

Also, as shown in Table 2 below, the storage unit 30 may store the charge information data for the monthly usage amount. The storage unit 30 is connected to the processing unit 20 and the processing unit 20 can calculate the usage fee using the electric power consumption amount of the electric power consumer and the charge information data.

The processing unit 20 is connected to the measuring unit 10 and the storage unit 30, the display unit 50 and the alarm unit 60. When the used power amount is received from the measuring unit 10, And uses the data stored in the storage unit 30 to calculate a power usage fee. The calculated charge information can provide the charge information to the consumer through the display unit 50. If the electric power consumes more than the predetermined value, the alarm unit 60 can transmit the alert to the consumer.

The display unit 50 may display the progressive step in the form of a graph of the sixth step (same as the fare period). At this time, the LED may be used for displaying the display unit 50 in the form of a graph, When the battery is used as the power source, the LCD can be used to save power. FND (7 segment LED) may also be used depending on the product.

The display unit 50 may display various information such as a power supply voltage, a current amount, a daily power use amount, a monthly power usage amount, a charge based on usage amount, a cumulative usage time after reset, and a current date and time. Here, the various information displayed on the display unit 50 may be displayed by pressing a separate button (not shown), and a plurality of information may be simultaneously displayed. Also, if a separate reset button 90 is pressed, it is possible to initialize the tariff meter 100 to delete cumulative stored power usage information, and accumulate again by remeasurement. Further, a character LCD or a graphic LCD may be used when the LCD is used in the display unit 50. [

The alarm unit 60 may have a signal unit 80 for emitting a warning sound to the consumer or a light emitting unit 70 for blinking light to awaken a surveillance when the alarm unit 60 enters a preset charge period or exceeds a predetermined charge. The predetermined fee period and the predetermined usage fee may be stored in the storage unit 30. [ The customer can press the reset button 90 to stop the alarm sound in the signal unit 80 or stop the flashing state of the light emitting unit 70. [

The alarm unit 60 may include a switch (not shown) installed in the power supply line. If the predetermined amount is exceeded, the alarm unit 60 may interrupt the supply of power through the power supply line, . At this time, the switch may block the power supply line for a predetermined time, and may allow power to be supplied through the power supply line after a predetermined time. Consumers can be interested in power saving by experiencing a power failure for a preset time.

For example, when the consumer uses 250 kW of power, the processing unit compares with the charge information stored in the storage unit.

The charge for use up to 100kwh is 100 * 59.10 = 5910 yen

The charge for the next 200kwh is 100 * 122.60 = 12260 won

The charge for the next 50kwh is 50 * 183.00 = 9150 won

Thus, the total usage fee is 27320 won, and this usage fee value is provided to the demand through the display unit 50.

In other words, when the user inputs the set value of the monthly electricity rate to the input unit 40 after calculating the set value of 50,000 won, the used power amount measured through the measuring unit 10 is transmitted to the processing unit 20, Calculates the charge information inputted to the storage unit (30) and calculates the charge for use. As described above, the calculated usage charge provides the usage charge information to the consumer through the display unit 50, and when the input usage exceeds the input set value or the power consumption enters the progressive period, Light can be emitted through the light or the light emitting portion 70.

The light emitting unit 70 may include a plurality of light emitting devices such as LEDs and the like. The light emitting units 70 may include a plurality of light emitting units 70 that emit different colors (for example, color, brightness, saturation, etc.) So that the customer can provide the progressive section information of the power currently used. The light emitting unit 70 may include first to third light emitting units 71, 73 and 75. For example, the first light emitting unit 71 may be green, the second light emitting unit 73 may be yellow, The third light emitting portion 75 may be red. That is, when the electric power of 100 kWh or less is used, the first light emitting portion 71 is turned on, and the second light emitting portion 73 and the third light emitting portion 75 are sequentially turned on during 100 kWh to 200 kWh and 200 kWh to 300 kWh . When the interval is changed, the light emitting unit 70 periodically flickers to warn the consumer, and when the user presses the reset button 90, the light emitting unit 70 can maintain the lighting state. As described above, when the charge section is divided into six sections, the light emitting section 70 may have the first to sixth light emitting sections.

Alternatively, the light emitting unit 70 may be integrally formed by mixing light emitting diodes of different colors. When the amount of electric power is rapidly increased (for example, exceeding 10% of the average usage amount) Change can be recognized. When the light emitting units 70 are installed in a mixture of a plurality of different colors, each of the reference colors corresponding to the variation of the predetermined power consumption amount may be turned on to provide a gradation effect. .

Also, as described above, the alarm unit 60 can emit a warning sound to the consumer through the signal unit 80 together with the light emitting unit 70 that visually emits the warning light. In addition, when the power consumption reaches the usage charge set value input by the consumer, the alarm unit 60 can control the breaker connected to the power supply line to cut off the power supply.

FIG. 3 is a flowchart showing an operation process of the tariff meter shown in FIG. As shown in Fig. 3, the consumer first inputs the target power use setting value for the next month to the input unit 40 (S10). The input unit 40 may be connected to the storage unit 30 and the set values may be stored in the storage unit 30. [ The user can input the set value through the direct key input unit, and the set value can be confirmed through the display unit 50. [

Next, the power consumption is measured through the measuring unit 10 installed on the power supply line (S20). The measured power usage amount is transmitted to the processing unit 20 (S30), and the set value stored in the storage unit 30, the charge information according to the power amount interval, the data in which the monthly usage amount information is recorded, (S40). When the used power value is greater than the set value, the alarm unit 60 is controlled to perform the alarm function to the consumer through the warning sound, the warning lamp, or the power supply interruption (S50). Thereafter, the usage fee is initialized through the reset button 90 as necessary (S60).

As described above, the tariff meter 100 of the present invention can confirm the used electric energy and the electric charge in real time, and can plan the usage for a predetermined period based on the target usage set value, so that the electric power consumption can be saved It can secure the national energy saving and the economic efficiency of the consumer.

Although the present invention has been described in detail by way of examples, other forms of embodiments are possible. Therefore, the technical idea and scope of the claims set forth below are not limited to the embodiments.

10: measuring section 20:
30: storage unit 40: input unit
50: Display section 60: Alarm section
70: light emitting portion 80: signal portion
90: Reset button 100: Rate indicator meter

Claims (5)

1. A price display type meter installed in a power supply line for measuring a power consumption amount and converting the power consumption amount into a usage fee,
A measuring unit installed in the power supply line and measuring the power consumption;
A storage unit storing a plurality of power usage periods having a predetermined range and charge information corresponding to the power usage periods;
A processing unit, connected to the measurement unit and the storage unit, for determining the power usage period according to the power usage measured by the measurement unit, and calculating the usage fee using the power usage amount and the fee information; And
A display unit connected to the processing unit and displaying the power usage period corresponding to the usage fee and the power usage amount; And
And a plurality of light emitting units that emit different colors and emit lights when corresponding to each of the power usage periods and included in the power usage period corresponding to each of the power usage periods, And an alarm unit for generating an alarm,
The alarm unit
And a control unit for periodically blinking the light emitting unit corresponding to the changed power usage period when the power usage period corresponding to the power usage amount is changed,
And a gradation effect is displayed by turning on a light emitting unit which emits light of each reference color corresponding to a variation value of a predetermined power consumption amount when the power consumption varies. The method according to claim 1,
Wherein the tariff meter comprises:
And a button portion for stopping the signal,
And generates the signal when the power usage period corresponds to a predetermined power usage period. The method according to claim 1,
Wherein the tariff meter comprises:
An input unit for inputting the upper limit charge through the consumer; And
And a button portion for stopping the signal,
And the alarm unit generates the signal when the usage fee exceeds the upper limit charge. 4. The method according to any one of claims 1 to 3,
Wherein the alarm unit has a switch capable of cutting off the supply of electric power through the power supply line. delete

Images