JP2000147015A - Electrical equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change the setting of an integrating period for working power rates. SOLUTION: Based upon an integrating period and working power rates read out of a nonvolatile memory 5a, working power rates are calculated with reference to a measured value of consumed power by a power measuring circuit 3 to store these at a predetermined area in the memory 5a, when a date and time is within the integrating period. The working power rates corresponding to an assigned display period are read out from the memory 5a and display these values on a display part 7, when an assignment of a display period is accepted. Also, setting of the integrating period is accepted, when a change of the integrating period is commanded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical device for calculating and displaying a power usage fee corresponding to the amount of power used in an electrical device, and more particularly to an electrical device characterized by setting a period for calculating the power usage fee. .

[0002]

2. Description of the Related Art Technical development for reducing the amount of electric power consumed in electric appliances, particularly air conditioners that consume more power than others, has been actively conducted. For example, JP-A-56-122962
The power rate display circuit proposed in Japanese Patent Application Laid-Open Publication No. H11-27995 displays the power consumption by the air conditioner by integrating and displaying the power consumption rate obtained by performing arithmetic processing from the power consumption of the air conditioner as a load and the unit power rate. It is an object of the present invention to make a user aware of the situation and to achieve an effect of saving power consumption.

FIG. 4 is a block diagram showing a configuration of the power rate display circuit. In the figure, reference numeral 21 denotes an arithmetic circuit for calculating a power consumption rate from a power consumption amount and a predetermined unit power rate for a predetermined period provided from the data input terminal, for example, one month. The operation circuit 21 stores the operation result in the first storage circuit 22
To memorize. The arithmetic circuit 21 reads out the arithmetic result stored in the storage circuit 22 when the switch 23 is in the conductive state, and causes the display device 24 to display the result.

The storage circuit 25 is connected to the storage circuit 22 via a switch 26. The storage circuit 27 is connected to the storage circuit 25 via a switch 28. The control terminals of the switches 26 and 28 are adapted to receive a signal input from the timer 29. The timer 29 turns on the switches 26 and 28 each time the predetermined period, that is, one month elapses, and transfers the operation result stored in the storage circuit 22 to the storage circuit 25.
In addition, the configuration is such that the operation results stored in the storage circuit 25 are sequentially sent to the storage circuit 27.

[0005] The storage circuits 25 and 27 are connected to the arithmetic circuit 21 via switches 30 and 31, respectively. The control terminals of the switch 30 and the switch 23 are adapted to receive a signal input from the call key switch 32, and are configured to conduct only the switch 30 when a signal is input. Also switch 31 and switch
The control terminal 23 is adapted to receive a signal input from the call key switch 33, and is configured to conduct only the switch 31 when a signal is input.

In other words, when displaying the power consumption rate for the previous month, the operation result stored in the storage circuit 25 is read out to the operation circuit 21 via the switch 30 by pressing the call key switch 32, and the display device is displayed. It is sent to 24 and displayed. Similarly, when displaying the power consumption rate for the month before last, the call key switch 33 is displayed.
By pressing, the desired calculation result is displayed on the display device 24.

[0007] As described above, depending on the power rate display circuit described above, the current power rates for the current month, the previous month, and the month before the last month are displayed on the call key switch 32 or the call key switch.
Since the information is selectively displayed on the display device 24 in accordance with the operation of 33, it is possible to compare the monthly power charges.

[0008]

By the way, the accommodation charge in an accommodation facility such as a hotel includes a uniform electricity charge when a guest uses an electric device such as an air conditioner provided in the guest room. is there. In this manner, if the usage power rate is uniformly charged without considering the usage status of the electrical equipment of each guest, there is a possibility that a specific guest may feel unfair. Therefore, it is desirable to calculate the amount of power consumption based on the amount of power consumption in the guest room from check-in to check-out of the guest, and to perform the settlement of the accommodation fee.

In general households, the frequency of use of electrical equipment may increase during a period shorter than one month such as a tray break, a New Year holiday, or a specific period starting or ending in the middle of a month. In addition to the monthly display of the power consumption rate, there is a demand to display the power consumption rate of each electric device in such a specific period, thereby achieving an effect of saving power consumption.

However, the above-mentioned power rate display circuit is configured to accept the setting of only one predetermined period related to the display of the power rate used, and it is impossible to change the setting once in the manufacturing process. Because
These requirements cannot be met.

Further, in realizing a home automation system for centrally controlling a plurality of electric devices provided in a home by using a computer as a control center, a configuration in which the computer acquires control data handled by each electric device in the home is provided. This is indispensable, and therefore, a configuration for outputting the control data in response to an inquiry from the computer is required on each electric device side.

[0012] The present invention has been made in view of such circumstances, and is capable of receiving a setting of a period related to the display of a power consumption rate, and integrating and displaying the power consumption rate during the period. The purpose is to provide equipment. Another object of the present invention is to provide an electric device that can use the calculation result of the power usage fee by another information processing device, for example, a personal computer.

[0013]

According to a first aspect of the present invention, there is provided an electric apparatus for calculating and displaying a power consumption rate based on a measured power consumption, and setting an integration period in which the power consumption rate is to be integrated. Means for accepting, means for integrating power consumption within a set integration period, storage means for storing a power usage fee for each integration period calculated based on the integrated power consumption, and storage means for storing Display means for selectively reading and displaying the power usage fee.

According to a second aspect of the present invention, there is provided an electric device comprising means for receiving a setting of a unit power rate, wherein the storage means stores the power consumption for each integration period calculated based on the integrated power consumption and the set unit power rate. It is characterized by being made to memorize the fee.

According to a third aspect of the present invention, there is provided an electric apparatus, comprising: means for receiving a designation of a display period in which a power usage fee is to be displayed; and use of an integration period of the power usage fee stored in the storage means corresponding to the display period. Output means for reading out and outputting the electricity rate.

[0016]

FIG. 1 is a block diagram showing a configuration of an electric equipment system including an electric equipment according to the present invention. In the drawing, reference numeral 1 denotes a power plug used by being inserted into a power socket for supplying a single-phase 100 V power voltage provided in a room, and the power plug 1 measures power consumed in the electric device 2. And a load 4 via a known power measuring circuit 3. The value measured by the power measurement circuit 3 is provided to the control circuit 5.

The control circuit 5 is connected to an input section 6 for receiving an input of an integration period and a unit power rate, and a display section 7 for displaying a used power rate. In addition, it is connected to a receiving unit 8 for receiving a command for inquiring about a power consumption rate, which is control data, and a transmission unit 9 for transmitting a power consumption rate in response to the inquiry. Furthermore, the control circuit 5 includes a non-volatile memory 5a for storing the input integration period and the power usage fee for each period, and the control circuit 5 performs the measurement by the power measurement circuit 3 and the predetermined unit power. The power usage fee is calculated based on the fee and stored in the nonvolatile memory 5a. Further, the display unit 7 displays the power consumption rate.
On the other hand, the CPU 11 of the control central computer 10 has an input unit 12 for receiving an operation and a display unit 13 for displaying processing data.
Connected to In addition, it is connected to a transmitting unit 14 for transmitting a command for inquiring the power consumption fee and a receiving unit 15 for receiving the power consumption fee.

A command given by the input unit 12 of the computer 10 is received by the CPU 11. CPU11
When it is determined that the received command is a display command of the power consumption, the transmission unit 14 gives the electric device 2 a command to inquire about the power consumption. Control circuit 5 for electrical equipment 2
When the receiving unit 8 receives a command for inquiring about the power usage fee, the usage unit reads the power usage fee from the non-volatile memory 5a, and gives this to the computer 10 by the transmission unit 9. The computer 10 performs an appropriate process by the CPU 11 on the power usage fee received by the receiving unit 15 and makes the display unit 13 clearly clarify a comparison with the power usage fee in the same period of the previous year, for example.

FIG. 2 is a flowchart showing a processing procedure of the electric equipment according to the present invention. When the power of the electric device 2 is turned on, the integration period for which the power usage fee should be integrated and the power usage fee are read from the nonvolatile memory 5a (S2). As a result of the reading, when it is determined that the integration period is not set (S4), the input of the integration period is received, and the received integration period is stored in the nonvolatile memory 5a (S6). Then, an area of a required size is secured in the non-volatile memory 5a in order to store the power usage fee from that point on, and the area is cleared (S8).

When the processing in S8 is completed, or when it is determined in S4 that the integration period has been set, the setting of the unit power rate is accepted in accordance with the processing procedure described later.
(S9). Then, it is determined whether or not the date and time is within the accumulation period.
(S10) If it is not within the accumulation period, the process returns to S8 and the subsequent procedures are repeated. In S10, when it is determined that the current time is within the integration period, the power consumption rate is calculated based on the measured value of the power consumption by the power measurement circuit 3 (S12), and the unit power rate set in S9. This is stored in a predetermined area of the nonvolatile memory 5a (S14). It is determined whether or not the designation of the display period has been received (S16) .If the designation has been received, the power consumption rate for the integration period corresponding to the designated display period is read from the nonvolatile memory 5a (S18), and this is displayed on the display unit. 7 is displayed (S20). If it is determined in S16 that the designation of the display period has not been received, the used power rate being accumulated is displayed in S20.

When the process of S20 is completed, it is determined whether or not a change of the integration period has been instructed (S22). If so, the process returns to S6 and the subsequent steps are repeated. S22
In step S24, when it is determined that the change of the integration period has not been commanded, it is determined whether or not the power-off command has been issued.
If no command has been issued, the process returns to S10 and the subsequent steps are repeated. When it is determined in S24 that the power-off has been instructed, the processing is terminated.

FIG. 3 is a flowchart showing a processing procedure for accepting the setting of the unit power charge in S9. It is determined whether or not the mode has been switched to the setting mode by the input unit 6.
(S32) If not, the process ends.
When it is determined in S32 that the mode has been switched to the setting mode, the unit power rate that has already been set is displayed, and the input of the unit power rate is accepted (S34). It is determined whether or not an input confirmation has been instructed (S36). If so, the unit power rate is stored in the non-volatile memory 5a (S38), and the process ends. In S36, when it is determined that the input confirmation has not been instructed, it is determined whether or not the cancellation of the setting of the unit power rate has been instructed (S40). When it has not been instructed, the process returns to S34, and the subsequent steps are performed. repeat. In S40, when it is determined that the setting suspension has been instructed, the processing is terminated.

[0023]

According to the electric appliances of the first to third aspects as described above, the setting of the integration period is accepted, and the power consumption of the predetermined integration period is displayed in order to selectively display the power usage rate for each integration period. Fees can be displayed.

Further, depending on the electric equipment of the second invention, since the setting of the unit power rate is accepted and the used power rate is calculated based on the unit power rate, it is possible to cope with the change of the unit power rate.

Further, depending on the electric equipment of the third invention, the specification of the display period is accepted, and the power consumption of the integration period corresponding to the display period is output. Can be read.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an electric device according to the present invention.

FIG. 2 is a flowchart showing a processing procedure of the electric device according to the present invention.

FIG. 3 is a flowchart showing a processing procedure of the electric device according to the present invention.

FIG. 4 is a block diagram showing a configuration of a conventional power rate display circuit.

[Explanation of symbols]

 3 Power measurement circuit 5 Control circuit 5a Non-volatile memory 6, 12 Input unit 7 Display unit 8 Receiving unit 9 Transmitting unit

Claims (3)

[Claims] 1. An electric device for calculating and displaying a power consumption rate based on a measured power consumption amount, comprising: means for receiving a setting of an integration period in which the power consumption rate is to be integrated; and power consumption in the set integration period. Means for accumulating the amount, storage means for storing a power rate for each integration period calculated based on the integrated power consumption, and display means for selectively reading and displaying the power rate stored in the storage means An electrical device comprising: 2. A unit for receiving a setting of a unit power rate, wherein the storage means stores the integrated power consumption and the power rate for each integration period calculated based on the set unit power rate. The electric device according to claim 1, wherein: 3. A means for receiving designation of a display period in which the power usage rate is to be displayed, and reading and outputting the usage power rate of the power usage rate stored in the storage means during an integration period corresponding to the display period. The electric device according to claim 1, further comprising an output unit.