JP2003198740A - Intercom system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To visually display electric energy not used in a house, remained and sold to a power company and bought electric power from commercial power which the power company supplies the house. <P>SOLUTION: A power measurement circuit 11 of a distribution board 6 measures the sold power not used in the house, remained and sold to the power company in the power produced by power generating modules 2a, 2b and converted via a power conditioner 3, and the bought electric power from the commercial power when the power generated by each power generating module is deficient, a distribution board CPU 12 calculates the integrated power resulting from the measured power within a prescribed time and transmits a signal including stored power information to a house master unit 7. Further, a plurality of LEDs 22a to 22h placed in parallel configuring a display section 22 of the house master unit are distinguished by the sold electric energy and the bought electric power and displayed by the number of the electric energy on the basis of the control of the master unit CPU 21 for analyzing the signal from the distribution board. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom system in which solar power generation or wind power generation is incorporated, and the amount of electric power sold to an electric power company that is not used in the dwelling unit or the electric power company is The present invention relates to an intercom system capable of visually displaying the amount of electric power purchased from a commercial power source supplied to a user.

[0002]

2. Description of the Related Art Conventionally, as this type of intercom system, an intercom system having the configuration shown in the block diagram of FIG. 2 has been proposed.

The intercom system shown in the figure measures a commercial power supply 51 for supplying electric power from a power company to a dwelling unit, the amount of power from the commercial power supply 51, and distributes this power to each system in the dwelling unit. Distribution board 52 and transmission I / F
60, a CPU 61, a display unit 62, a sound generation circuit 63, and a speaker 64, and has a function of displaying a level of a used current caused by the amount of electric power from a commercial power supply 51 used in a dwelling unit and a level of the used current. Of the dwelling unit master unit 53 having a warning notification function when the threshold value is equal to or higher than a preset threshold level.

Further, the display unit 62 of the dwelling unit 53 is provided with a plurality of LEDs arranged in parallel to display the level of current used due to the amount of electric power from the commercial power source 51 used in the dwelling unit. Then, 5 LEDs 62a, 62b, 6
2c, 62d, 62e.

In the conventional intercom system thus constructed, the distribution board 52 is provided for each system in the dwelling unit,
For example, the power from the commercial power supply 51 is distributed to the load devices for each room in the dwelling unit, and the total current used due to the amount of power from the commercial power supply 51 used in the dwelling unit is The electric signal including the electric energy information indicating the level of the contracted current value or the rated electric current value that is set in advance between the two is transmitted to the dwelling unit master unit 53, and this electric signal is Transmission I / F 60 of the home unit 53
Is transmitted to the CPU 61 via.

The CPU 61 of the home unit 53 is a distribution board 52.
Based on the power amount information included in the electric signal from the electric power company, the total used current resulting from the electric power amount from the commercial power source 51 used in the dwelling unit is set in advance with the electric power company. The level of the current value or the rated current value is analyzed, and for example, if the level is less than 20%, the five LEDs 62a, 62b, 62 constituting the display unit 62 are analyzed.
Of c, 62d, and 62e, only the LED 62a is turned on, and if 20% or more and less than 40%, the LEDs 62a, 6
2b are respectively lit up, and when they are 40% or more and less than 60%, LEDs 62a, 62b and 62c are respectively lit up, and when they are 60% or more and less than 80%, LEDs 62a, 6
2b, 62c, 62d are turned on respectively, and when 80% or more, all LEDs 62a, 62b, 62c, 62
d and 62e are turned on. In addition, when the above level exceeds 100%, the C
The PU 61 includes all the LEDs 62 that form the display unit 62.
a, 62b, 62c, 62d, and 62e are blinked, respectively, and the voice production circuit 63 is controlled to control the speaker 64.
A warning sound (including a warning sound) is sounded from to issue a warning.

[0007]

However, in the intercom system of the conventional example, the total use current resulting from the amount of electric power from the commercial power source 51 used in the dwelling unit is preset and contracted with the electric power company. It is possible to inform the occupants in the dwelling unit of the level of the contracted current value or the rated current value, while incorporating solar power generation or wind power generation into this system allows Of the power generated by photovoltaic power generation and wind power generation, the amount of power sold to the power company that is not used in the dwelling unit and the amount of power purchased from the commercial power source supplied to the dwelling unit by the power company There was a problem that it was not possible to inform the residents in the area.

The present invention has been made in order to solve the above-mentioned drawbacks. Among the electric power generated by solar power generation or wind power generation, it is sold not sold in a dwelling unit but sold to a power company. To provide an intercom system that can urge residents in the dwelling unit to be aware of power saving by visually displaying the amount of electricity and the amount of power purchased from the commercial power source supplied to the dwelling unit by the power company. Is intended.

[0009]

In order to achieve the above-mentioned object, an intercom system according to the present invention includes a power generation module for converting sunlight or wind power into DC power, and a DC power connected to the power generation module. A power conditioner for converting to electric power, a wattage meter for measuring the accumulated amount of electric power that is generated by the power generation module and that is left unused in the dwelling unit and sold to a power company, and a power generation module If the electric power generated by the power supply is insufficient, the electric power company purchases a power meter to measure the cumulative amount of electric power supplied to the dwelling unit from the commercial power source, the electric power amount from the power generation module, and the electric power amount from the commercial power source. The distribution board for measuring each and distributing the power to each system in the dwelling unit, and the electric signal containing the electric energy information sent from the distribution board are received, and the level of the sales electric power is received. , A dwelling unit for displaying the level of the purchased electric power, and the distribution board is obtained from the electric power measurement circuit for measuring the sold electric power and the purchased electric power, respectively, and the electric power measurement circuit. A distribution board CPU for calculating an integrated amount of electric power within a certain time based on the signal and storing the value, and a distribution board for transmitting the electric power information stored in the distribution board CPU to a dwelling unit The transmission unit has a transmission I / F, and the dwelling unit master analyzes the received signal and the dwelling unit transmission I / F for receiving the signal from the distribution board, and sells power amount data and buy power amount. It is characterized by having a dwelling-unit base unit CPU for generating each of the data and a display unit for displaying the data from the dwelling-unit base unit CPU.

In addition, a plurality of display units of the dwelling unit, which constitutes the intercom system according to the present invention, are arranged in parallel.
It is characterized in that the dwelling-unit base unit CPU distinguishes between the amount of sold power and the amount of purchased power, and turns on a plurality of LEDs arranged in parallel according to the level of the amount of power.

In such an intercom system, the electric power measurement circuit of the distribution board is not used in the dwelling unit and is not used in the dwelling unit out of the electric power generated in the power generation module and converted through the power conditioner. The amount of electric power sold to the power generation unit and the amount of electric power purchased from the commercial power source when the electric power generated in each power generation module is insufficient are measured, and the distribution board CPU within the fixed time of the measured electric power. The integrated electric energy is calculated, and a signal including the stored electric power information is sent to the home unit. In addition, a plurality of LEDs that are arranged in parallel and constitute the display unit of the dwelling unit are distinguished for each of the sold power amount and the purchased power amount, and based on the control of the dwelling unit CPU that analyzes the signal from the distribution board, Light up as many times as the amount of electricity.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the intercom system according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an intercom system according to an embodiment of the present invention, which is for converting a solar power into direct current power and a commercial power source 1 for supplying power from a power company to a dwelling unit. Of the solar cell power generation module 2a, which is a power generation module for converting wind power into DC power, and the solar cell power generation module 2a and the wind power generation module 2b. Of the power conditioner 3 for converting the DC power from the 2b into the AC power and the power generated in each of the power generation modules 2a, 2b and converted through the power conditioner 3,
Electricity meter 4 for measuring the accumulated amount of electric power that sells the electric power (surplus electric power) not used in the dwelling unit to the electric power company.
When the electric power generated in each of the power generation modules 2a and 2b and converted through the power conditioner 3 is insufficient, the electric power company measures the integrated electric energy of the electric power supplied from the commercial power source 1 into the dwelling unit. Of the electric power generated in each of the power generation modules 2a and 2b and converted by the power conditioner 3 and sold to the electric power company through the power meter 4 for sale (sales Power distribution), a distribution panel 6 for measuring the amount of power (purchased power) from the commercial power source 1 via the purchased power meter 5 and distributing the power to each system in the dwelling unit, and a distribution board A home unit 7 for receiving a signal including power amount information, which will be described later, sent from 6 and displaying the level of the sold power amount and the level of the purchased power amount, respectively.
It consists of and.

The distribution board 6 shown in FIG. 1 is generated by each of the power generation modules 2a and 2b and converted through the power conditioner 3, or the power from the commercial power source 1 through the purchased power meter 5. Connected to a power distribution circuit 10 for distributing (supplying (buying power)) to each system in the dwelling unit, a line connecting the power distribution circuit 10, the selling power meter 4, and the buying power meter 5, respectively, In order to measure the integrated electric energy within a fixed time based on the signals obtained from the electric power measuring circuit 11 for measuring the sold electric energy and the purchased electric energy and the electric power measuring circuit 10, and to store the values. Distribution board CP
It has U12 and the distribution board transmission I / F13 for sending out the signal (electrical signal) containing the electric power information preserve | saved by the distribution board CPU12 to the dwelling unit master 7.

The dwelling unit master 7 shown in FIG. 1 has a dwelling unit transmission I / F 20 and a dwelling unit transmission I / F 20 for receiving signals from the distribution panel transmission I / F 13 of the distribution panel 6. The electric power information contained in the received signal is analyzed and displayed by the dwelling unit master CPU 21 for generating the data of the sold power amount and the data of the purchased power amount, and the data from the dwelling unit master CPU 21. And a display unit 22.

Further, the display unit 22 of the dwelling unit 7 has a plurality of LEDs arranged side by side, in this case, each of four left and right electric power amounts displayed on the basis of the central axis is an amount of electric power sold and a displayed amount of electric power sold. LEDs 22a, 22b, 22c, 22d, and purchased power amount display LEDs 22e, 22f, 22g, 22h
It is composed of.

The operation of the intercom system according to the embodiment of the present invention configured as described above will be specifically described below with reference to the block diagram of FIG.

In the fine daytime when the intensity of sunlight can be secured, or when sufficient wind force can be secured, the solar cell power generation module 2a generates DC power that is converted into electricity in accordance with the intensity of sunlight, and wind power is generated. In the power generation module 2b, direct-current power that has been electrically converted according to the magnitude of the wind force is generated. These DC powers are converted to AC powers via the power conditioner 3 and then supplied from the power distribution circuit 10 of the distribution board 6 to each system in the dwelling unit, for example, load devices for each room in the dwelling unit. To be done.

Here, of the electric power supplied to each system in the dwelling unit, the unused electric power (excess electric power) flows backward to the electric power meter 4 for sale and is then sold to the electric power company to sell the electric power. In total 4, the integrated amount of the reversely flown selling power is measured.
In addition, the amount of sold power flowing backward is measured by the power measuring circuit 11 in real time, and the distribution board CPU 12
Is calculated based on the signal obtained from the power measuring circuit 11 for a certain period of time, for example, 10 minutes, and the accumulated amount of electric power is stored A signal (hereinafter, referred to as a sold power amount information signal) including power amount information which is an integrated amount of sold power is transmitted. This sold power amount information signal is transmitted to the distribution board I / F.
13. The data is transmitted to the dwelling unit master CPU 21 through the dwelling unit transmission I / F 20 of the dwelling unit 7.

The dwelling unit CPU 21 of the dwelling unit 7 analyzes the power amount information included in the sold power amount information signal from the distribution board 6, generates the sold power amount data, and sends it to the display unit 22. To do. Further, in the display unit 22, the home unit CPU 21
According to the level of the sold power amount data from, that is, as changing from the low level to the high level, the sold power amount display LED 22a → LED 22a, 22b → L
ED22a, 22b, 22c → all LEDs 22a, 2
2b, 22c, and 22d, by turning on the number of LEDs for displaying the sold power amount according to the level, the occupants in the dwelling unit can use the solar power generation module to generate the power used in real time in the dwelling unit. It is possible to confirm that the power is generated by 2a or the wind power generation module 2b, and if this power is not used in the dwelling unit and is sold to an electric power company, the amount of power sold is also checked. It is possible to promote awareness of power saving.

Next, when the intensity of sunlight cannot be sufficiently secured, for example, in cloudy weather, rainy weather, nighttime, or when sufficient wind power cannot be secured, for example, when there is no wind, the above-mentioned solar cell power generation module 2a and Wind power generation module 2
The amount of DC power generated in b is insufficient, and the amount of AC power converted through the power conditioner 3 is also supplied from the power distribution circuit 10 of the distribution board 6 to each system in the dwelling unit. The power distribution circuit 10 of the distribution board 6 does not have a sufficient amount of electric power to allow the electric power to be distributed.
The power supplied to each system in the dwelling unit is supplemented with the AC power from the commercial power source 1, and the purchased power meter 5 measures the integrated amount of the purchased power from the commercial power source 1. Also, the amount of electric power purchased from the commercial power source 1 via the electric power meter 5 is calculated by the electric power measurement circuit 11
Is measured in real time at the distribution board CPU12
Is calculated based on the signal obtained from the power measuring circuit 11 for a predetermined period of time, for example, 10 minutes, and the accumulated amount of electric power is stored A signal (hereinafter, referred to as a buy power amount information signal) including power amount information forming an integrated amount of buy power is transmitted. The purchased power amount information signal is sent to the dwelling unit C of the dwelling unit 7 via the same route as the above-described sold power amount information signal.
It is transmitted to the PU 21.

The dwelling unit CPU 21 of the dwelling unit 7 analyzes the power amount information included in the power purchase amount information signal from the distribution board 6, generates power amount data and sends it to the display unit 22. To do. Further, in the display unit 22, the home unit CPU 21
According to the level of the level of the purchased power amount data from, that is, as changing from the low level to the high level, the purchased power amount display LED 22e → LED 22e, 22f → L
ED22e, 22f, 22g → all LEDs 22e, 2
By turning on the number of LEDs corresponding to the level, such as 2f, 22g, and 22h, for lighting the purchased power amount display LEDs, the resident in the dwelling unit buys the power used in real time in the dwelling unit from the power company. It is possible to confirm that the power is from the commercial power source 1 and also the amount of purchased power, which promotes awareness of power saving.

In the intercom system according to the embodiment of the present invention, a plurality of LEDs arranged side by side which constitute the display unit 22 of the dwelling unit 7 are used for displaying the amount of electric power sold for each of the left and right four with respect to the central axis. LEDs 22a, 22b, 22c, 22
d, purchased power amount display LEDs 22e, 22f, 22g,
However, the number of the sold power amount display LEDs and the purchased power amount display LEDs is not limited to four. For example, if the number of LEDs is four or more, the sold power amount and the purchased power amount are more Can be displayed in detail.

[0024]

As is apparent from the above description, according to the intercom system of the present invention, the power generated by the solar power generation or the wind power generation incorporated in the system is not used in the dwelling unit. Among the LEDs arranged side by side, the amount of electric power sold to the electric power company and the amount of electric power purchased from the commercial power source supplied by the electric power company into the dwelling unit are classified by the amount of electric power to be sold and the amount of electric power to be purchased, respectively. The LEDs can be turned on and displayed visually according to the level, and the awareness of power saving is promoted to the occupants in the dwelling unit who have confirmed this.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an intercom system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional intercom system.

[Explanation of symbols]

1 ... Commercial power supplies 2a, 2b ... Power generation module 3 ... Power conditioner 4 ... Electricity meter for sale 5 ... Electricity meter for purchase 6 ...・ ・ ・ Distribution board 7 ・ ・ ・ Dwelling unit 11 ・ ・ ・ Electric power measurement circuit 12 ・ ・ ・ Distribution board CPU 13 ・ ・ ・ Distribution board transmission I / F 20 ・ ・・ ・ ・ Dwelling unit master I / F 21 ・ ・ ・ Dwelling unit master CPU 22 ・ ・ ・ Displays 22a, 22b, 22c, 22d, 22e, 22f, 2
2g, 22h ... Multiple LEDs arranged side by side

Claims (2)

[Claims] 1. A power generation module (2a, 2b) for converting sunlight or wind power into DC power, and a power conditioner (3) connected to the power generation module for converting the DC power into AC power. And a power meter (4) for measuring an integrated amount of electric power for selling to the electric power company surplus power not used in the dwelling unit out of the electric power generated by the power generation module, and the power generated by the power generation module. When the electric power is insufficient, the electric power company purchases a power meter (5) for measuring the integrated electric energy supplied from the commercial power source (1) into the dwelling unit, the electric energy from the power generation module, and the commercial energy. A distribution board (6) for measuring the amount of electric power from the power source and distributing the electric power to each system in the dwelling unit, and receiving an electric signal including the electric energy information sent from the distribution board, Electricity sold And a dwelling unit (7) for displaying the level of the purchased power amount, respectively, and the distribution board is a power measurement circuit (11) for measuring the sold power amount and the purchased power amount, respectively. ) And a signal obtained from the electric power measurement circuit, a distribution board CPU for calculating an integrated amount of electric power within a fixed time and storing the value.
(12), and a distribution board transmission I / F (1 to send the power information stored in the distribution board CPU to the dwelling unit master).
3), wherein the dwelling unit master unit analyzes the received signal and the dwelling unit master unit transmission I / F (20) for receiving a signal from the distribution board, and Dwelling unit master CPU (21) for generating data and data of the purchased electric energy, respectively
And an intercom system including a display unit (22) for displaying data from the CPU of the housing unit. 2. The display unit comprises a plurality of LEDs (2
2a, 22b, 22c, 22d, 22e, 22f, 22
g, 22h), the housing unit CPU distinguishes between the selling power amount and the buying power amount, and the plurality of LEDs are arranged in parallel by the number corresponding to the level of the power amount.
The intercom system according to claim 1, wherein is turned on.