JPH11272969A - Power consumption monitor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a circuit breaker from abruptly operating by giving the notice that the power consumption is to exceed the permissible electric power of the circuit breaker. SOLUTION: This power consumption monitor device has a power consumption detection and transmission part 12 connected between the circuit breaker 24 and a power load 26, detects the value of the current flowing to the circuit breaker 24 or the value of the electric power that the power load 26 consumes, and sends power consumption information corresponding thereto. A reception notification part 14 receives the power consumption information from the power consumption detection and transmission part 12 and sounds when the current flowing to the circuit breaker 24 or the electric power that the power load consumes exceeds the specific value to give the notice that the circuit breaker is to operate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a power consumption monitoring device.

[0002]

2. Description of the Related Art Conventionally, a power breaker is provided between a power supply and a power load to prevent an excessive current from flowing. For example, in equipment that consumes large amounts of power, such as factories, circuit breakers of smaller capacity are sequentially arranged downstream from the main power supply to the power system while protecting and coordinating, and motors and other power loads are connected at the ends. You. On the other hand, even in a general household, an electric wire is drawn in from a commercial power line to a room through a circuit breaker, and then a home appliance as a power load is connected to the circuit breaker through an outlet. By arranging the circuit breaker between the power supply and the power load in this way, it is possible to safely cut off the power when the power consumption is exceeded.

[0003]

Generally, a power load has a large number of power loads connected under the circuit breaker, with the sum of the respective rated power consumptions exceeding the allowable power of the circuit breaker. . Even in such a situation, the circuit breaker will not operate unless the instantaneous power consumption exceeds the allowable power value. However, especially in ordinary households, it often happens that a large number of home appliances are simultaneously used in excess of the allowable power to operate the circuit breaker without knowing it. Then,
In ordinary households, after the circuit breaker is restored or the circuit breaker is restored, each home electric appliance must be reset, such as resetting a timer. Furthermore, in a facility such as a factory that consumes a large amount of electric power, there is a risk that a large accident may occur due to the interruption of the electric power supply by operating the circuit breaker.

An object of the present invention is to solve such a problem, and to notify that the power consumption is going to exceed the allowable power of the circuit breaker and to operate the circuit breaker suddenly. It is an object of the present invention to provide a power consumption monitoring device for preventing such a problem from occurring.

[0005]

According to the present invention, there is provided a power consumption monitoring apparatus for preventing power consumption by a power load from exceeding an allowable value of a circuit breaker for the power load. A power consumption detection transmission unit connected between a circuit breaker and a power load, detecting a current value flowing through the circuit breaker or a power value consumed by the power load, and transmitting power consumption information corresponding thereto; A power consumption monitor comprising: a power supply information receiving unit that receives power consumption information from a detection transmission unit and sounds and reports when a current value flowing through the circuit breaker or a power value consumed by the power load exceeds a predetermined value. The device is the gist.

Further, the present invention provides a power consumption monitoring apparatus for preventing power consumption by a power load from exceeding an allowable value of a circuit breaker for the power load.
A power consumption detection transmission unit connected between the circuit breaker and the power load, detecting a current value flowing through the circuit breaker or a power value consumed by the power load, and transmitting power consumption information corresponding thereto; A power consumption monitoring device that receives power consumption information from the power consumption detection transmission unit and includes a reception notification unit that displays a power consumption state of the power load in association with a current value flowing through the circuit breaker or the power load. Make a summary.

Further, the present invention provides a power consumption monitoring apparatus for preventing power consumption by a power load from exceeding an allowable value of a circuit breaker for the power load.
A power consumption detection transmission unit connected between the circuit breaker and the power load, detecting a current value flowing through the circuit breaker or a power value consumed by the power load, and transmitting power consumption information corresponding thereto; Power consumption information is received from the power consumption detection transmission unit, and the power consumption state of the power load is displayed in association with the current value flowing through the circuit breaker or the power load, and the current value or the power value is a predetermined value. The gist of the present invention is a power consumption monitoring device including a reception notification unit that sounds and notifies a user when the power consumption is exceeded.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. The embodiment shown in FIG. 1 is mainly intended for ordinary households, and a home electric appliance 26 as an electric power load includes an integrated wattmeter 22, a circuit breaker 24, and an indoor wiring 2.
8 is connected to a 100 V commercial power line 20 of a power company as a power source. In FIG. 1, the circuit breaker 24 represents one or a plurality of circuit breakers.
Reference numeral 6 denotes one or more home electric appliances connected to each of the circuit breakers 24 via the indoor wiring 28.

The power consumption monitoring device 10 according to the embodiment of the present invention includes a power consumption detection transmission unit 12 and a reception notification unit 14. The power consumption detection transmission unit 12 is configured to detect the power consumed by all the power loads 26 assigned to a certain circuit breaker 24 or the current flowing through the circuit breaker 24 immediately downstream of the circuit breaker 24 in the indoor wiring 28. Connector 16
Is connected to one of the poles of the indoor wiring 28. The power consumption detection transmission unit 12 includes a power detection unit 12a that constantly detects the total power consumption of the home electric appliance 26, and a power detection unit 12a.
a to process the power consumption detected by the antenna 12c
And a transmission unit 12b for transmitting the radio wave through the communication unit 12b. The reception notifying unit 14 receives the information from the power consumption detection transmitting unit 12 via the antenna 14c.
And a notifying unit 14b that processes information received by the receiving unit 14a and notifies the user of the information. The notification unit 14b includes a sounding device such as a buzzer or an alarm.

Hereinafter, the operation of the embodiment of the present invention will be described.
First, the power consumption detection transmission unit 12 is arranged in or near a distribution board of indoor wiring. When the power load 26 consumes power, power is supplied from the circuit breaker 24 to the power load 26 through the indoor wiring 28. Power consumption detection transmitter 12
Continuously detects the current flowing through the indoor wiring 28 downstream of the circuit breaker 24, that is, the power consumption of the power load 26, and transmits the detected current value to the reception notifying unit 14 as power consumption information. The reception notification unit 14 is arranged in a living room such as a living room, and receives power consumption information transmitted from the power consumption detection transmission unit 12 by radio waves. A predetermined value corresponding to the allowable power value or the allowable current value of the circuit breaker 24 is input to the reception notifying unit 14 in advance. The predetermined value can be, for example, a value of 90% of the allowable power value or the allowable current value. When the power consumption information from the power detection transmission unit 12 exceeds the predetermined value, the reception notification unit 14 activates the sounding device, and the power consumed by the power load 26 to the surrounding people is reduced to the allowable power of the circuit breaker 24. Notifies and warns that the value or current value is about to be exceeded. If the circuit breaker 24 has a margin between the rated value and the actually operated power value or current value, the predetermined value may be used as the allowable power value or current value of the circuit breaker 24. it can. In any case, one of the home appliances is stopped before the circuit breaker 24 is operated, for example, by turning off an unnecessary light, the power consumption of the power load 26 is reduced, and the operation of the circuit breaker 24 is stopped. It is possible to prevent it before it happens.

In the above embodiment, the reception notifying unit 14 has been described as including a sounding device such as a buzzer or an alarm.
For example, a display device 30 as shown in FIG.
Can also be provided. The display device 30 has a plurality of light emitting diodes 32a, 32b, 32c, each of which emits light corresponding to a power consumption value. More specifically, the light emitting diode 32a emits light when the power consumption value is, for example, 50% or less of the allowable power value, for example, blue or green, and the light emitting diode 32b emits yellow, for example.
The light emitting diode 32a emits light when the power consumption value exceeds 50% of the allowable value, and emits light when the power consumption value exceeds 80% of the allowable value.
This allows the user to know in advance how much power is currently being consumed and to determine whether it is possible to use a certain power load or to stop another power load. Can be.

Although one embodiment of the present invention has been described, it is obvious to those skilled in the art that the present invention is not limited to this embodiment but can be variously modified and improved. For example, although the embodiment of the present invention has been described with a general household in mind, the present invention is not limited to this, and can be applied to equipment that consumes large power, such as a factory. In that case, the electric power load is not a home appliance but a motor or an electric resistance heater. Further, the reception notifying unit 14 is not a living room such as a living room, but a place near a work site of a factory or a monitoring room or the like where a worker is always present.

It is needless to say that the reception notifying section 14 may combine the above-described sounding device and display device. Further, the display device can display a liquid crystal instead of the light emitting diode. In addition, the information is described that the information is transmitted from the power consumption detection transmission unit 12 to the reception notification unit by radio waves. However, the transmission may be performed by wire using an electric wire or wirelessly using an infrared ray.

[Brief description of the drawings]

FIG. 1 is a block diagram of a power consumption monitoring device according to an embodiment of the present invention.

FIG. 2 is a reception notification device provided with a display device including a plurality of light emitting diodes.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Power consumption monitoring apparatus 12 ... Power consumption detection transmission part 14 ... Reception notification part 20 ... Commercial power line 22 ... Power meter 24 ... Circuit breaker 26 ... Power load 28 ... Indoor wiring 30 ... Display device

Claims (3)

[Claims] 1. A power consumption monitoring device for preventing power consumption by a power load from exceeding an allowable value of a circuit breaker for the power load. A power consumption detection transmitting unit that is connected and detects a current value flowing through the circuit breaker or a power value consumed by the power load, and transmits power consumption information corresponding thereto, and power consumption information from the power consumption detection transmitting unit. And receive
A power consumption monitoring device comprising: a notification unit that sounds and notifies when a current value flowing through the circuit breaker or a power value consumed by the power load exceeds a predetermined value. 2. A power consumption monitoring device for preventing power consumption by a power load from exceeding an allowable value of a circuit breaker for the power load, wherein a power consumption monitoring device is provided between the circuit breaker and the power load. A power consumption detection transmitting unit that is connected and detects a current value flowing through the circuit breaker or a power value consumed by the power load, and transmits power consumption information corresponding thereto, and power consumption information from the power consumption detection transmitting unit. And receive
A power consumption monitoring device comprising: a reception notification unit configured to display a power consumption state of the power load in accordance with a current value flowing through the circuit breaker or the power load. 3. A power consumption monitoring device for preventing power consumption by a power load from exceeding an allowable value of a circuit breaker for the power load, wherein a power consumption between the circuit breaker and the power load is reduced. A power consumption detection transmitting unit that is connected and detects a current value flowing through the circuit breaker or a power value consumed by the power load, and transmits power consumption information corresponding thereto, and power consumption information from the power consumption detection transmitting unit. And receive
And a reception notifying unit that displays a power consumption state of the power load corresponding to the current value flowing through the circuit breaker or the power load, and sounds and notifies when the current value or the power value exceeds a predetermined value. Power consumption monitoring device.