JP4685438B2 - Electricity meter - Google Patents

Description

The present invention relates to a watt-hour meter capable of measuring a cumulative value within a predetermined period of power supplied from a power supply facility to a power consumer and displaying the measured power amount on a display means.

  Conventionally, if the power supply equipment owned by an electric power company is out of a certain time of the month due to a natural disaster, etc., for example, in the case of a general household, the power charge is discounted if a power outage occurs for an hour or more per day Service is performed.

 Conventionally, this service is implemented by using a power outage discount processing system that is owned by the power company. It was determined whether it was eligible for a discount.

Although Patent Document 1 is not directly related to the above-described prior art, when a commercial power source obtained from a power supply facility such as a power generation facility of an electric power company fails, the power failure time is sequentially counted and accumulated. An electronic wattmeter or the like that displays the accumulated value on a setting screen is described. In this case, in order to continue the operation of measuring the amount of electric power, such as an electronic wattmeter, even if the commercial power supply fails, a power battery is built in, and the operation of this power battery alone is guaranteed for 8760 hours for one year. It is decided to. For this reason, it is desired to accurately grasp the life of the power battery. Patent document 1 is for satisfying such a request, and it is clearly considered that the power supply facility described in the background art mentioned above considers the discount of the electric power charge to the electric power customer when a power failure occurs. Different.
JP-A-5-223908

  In the above-described conventional method, there is a possibility that a human error occurs when inputting the system, and there has been a processing omission for a fee discount target. In addition, since the determination as to whether or not a power failure has occurred is made for each system, not for each consumer, there is a problem that the actual power supply to the consumer is not reflected.

  The present invention has been made in view of the above. The purpose of the present invention is to grasp the situation where a power outage has occurred for each customer, and to eliminate the omission of processing for a charge discount target, and to make an appropriate power transaction. It is to provide a watt-hour meter that realizes the above.

  In order to achieve the above object, the present invention measures the cumulative value within a predetermined period of power supplied from a power supply facility to a power consumer, and displays the measured power amount on a display means. In the quantity meter, a power failure detection means for detecting power failure information in a power failure state of the power supply facility, a discount criterion setting means capable of setting a discount criterion for discounting a charge of power from the power supply facility, When the power outage information from the power outage detection means exceeds the discount standard from the discount standard setting means, the amount of power already supplied from the power supply facility to the power consumer is determined as a discount target, and the determination result is A watt-hour meter provided with a power charge discount judgment means for displaying on a display means.

  As the power outage information, for example, any one of power outage time, power outage time, power outage time and power outage time, and as a discount standard for discounting the charge of power from the power supply facility, for example, power outage time discount standard, Either the power outage frequency discount standard, the power outage time discount standard, or the power outage frequency discount standard is used.

  According to the watt-hour meter of the present invention, it is detected by the power failure detection means that a power supply facility power failure has occurred, and the situation where the power failure has occurred It is possible to directly grasp the power outage situation of the power consumer by determining whether or not to display the result and displaying it on the display means. Therefore, it is possible to reduce the processing omission of the charge discount target due to human error such as system input, and to realize an appropriate power transaction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the embodiment of the present invention, as shown in FIG. 1, the power supplied from the power supply facility 1 to the power consumer, for example, the load 2 is measured by a power amount calculation means 34 to be described later with a cumulative value within a predetermined period. In addition, the watt-hour meter capable of displaying the measured power amount on the display means 40, for example, the electronic watt-hour meter 3, has the following configuration.

  The power amount calculation means 34 has a timer function and is connected to the voltage 2 detected by the voltage detection means 32 and the load 2 applied to the input terminal 30 to which the power supply facility 1 is connected. The current detected by the current detection means 33 is input to the current flowing through the output terminal 31, and the power is obtained by multiplying both.

  A power failure detection means 38 for detecting power failure information in the power failure state of the power supply facility 1 newly provided in the electronic watt-hour meter 3 described above, and a discount standard for discounting the charge of power from the power supply facility 1 If the power outage information from the discount standard setting means 39 and the power outage detection means 38 exceeds the discount standard from the discount standard setting means 39, the amount of power already supplied from the power supply facility 1 to the load 2 can be discounted. Power rate discount judgment means 37 for displaying the judgment result on the display means 40.

  The above configuration further includes storage means 35 made of, for example, a non-volatile memory that can accumulate and store power failure information related to power failure of the power supply facility 1 for a predetermined period and can read out the stored contents by a read command. The storage means 35 accumulates and stores the power supply information supplied from the power supply facility 1 to the load 2 and the power failure information related to the power failure of the power supply facility 1 for a predetermined period, and the storage contents can be read out by a read command. It has become.

  The discount standard of the charge discount standard setting unit 39 exists at a position away from the display unit 40, can be arbitrarily set by the communication unit 41, and reads the contents stored in the storage unit 35, Alternatively, the stored contents can be reset. Specifically, a communication terminal (not shown) is connected to the watt-hour meter main body so that a wired or wireless communication terminal can be connected.

  Further, the contents stored in the storage means 35 are read and displayed on the display means 40 at the time of meter reading work, or the display contents of the display means 40 and the contents stored in the storage means 35 can be reset. / Reset means 36 is provided. The reading / resetting means 36 is composed of, for example, a switch. When the meter reading operation is performed, for example, a pressing operation is performed, power failure information is displayed on the display means, and conversely, a non-pressing operation is performed to reset the display content. ing.

 Next, the operation of the electronic watt-hour meter 3 of the embodiment configured as described above will be described with reference to the flowchart of FIG. First, the voltage signal detected by the voltage detection means 32 is taken into the power failure detection means 38, and the stop of the supply power of the power supply facility 1 is detected (S1). If a power failure is detected, the number of power failures is incremented and recorded (stored) in the storage means 35 (S2).

   Next, the current time when the power failure occurs is read by the timer included in the electric energy calculation means 34 and recorded in the storage means 35 (S3).

 Next, the timer which has it in the electric energy calculation means 34, and times a power failure time is started to operate (S4). When the supplied power is restored in this state (S5), the timer included in the electric energy calculation means 34 is stopped (S6). The power failure time counted by the timer is accumulated and recorded (stored) in the storage means 35 (S7).

   Next, the power rate discount standard defined by the power company is compared with the information on the power failure, and it is determined whether or not the rate discount standard is exceeded (S8). In S8, when it is determined that the charge is discounted, the number of power outages and the power outage time are displayed on the display means 40 (S9).

   By operating the read / reset means 36, the power failure history recorded in the storage means 35 can be displayed on the display means 40, and the power failure history recorded in the storage means 35 can be read through the communication means 41.

  The number of power outages displayed on the display unit 40 and the history of power outages recorded in the storage unit 35 are reset through the reading / resetting unit 36 or the communication unit 41 when the charge calculation standard is read. Separately from this, when the charge calculation standard is the measurement date, the number of power outages displayed on the display means 40 on the measurement date and the history of power outages recorded in the storage means 35 are automatically reset.

  According to the watt-hour meter of the embodiment described above, the power failure detection means 38 detects that a power failure has occurred in the power supply facility 1, and the situation where the power failure has occurred is determined by the power rate discount judgment means 39 by the power company. It is possible to directly grasp the power outage situation of the electric power consumer by determining whether or not it is eligible for the discounted charge and displaying it on the display means 40. Therefore, it is possible to reduce the processing omission of the charge discount target due to human error such as system input, and to realize an appropriate power transaction.

  In addition, when the period of power outage is subject to a charge discount stipulated by the electric power company, it is displayed on the display means 40 installed in each electric power consumer, for example, an electronic watt-hour meter. It is practical.

  Furthermore, according to the present embodiment, the power failure history is stored in the storage unit 35, and the time when the power failure occurs, the power failure period, and the number of power failures can be read out by the communication unit 41 when necessary. The display contents of the display means 40 and the storage contents of the storage means 35 can be reset by 41, and the discount standard of the power charge discount standard setting means 39 can be set. In addition, a history of power failure is stored in the storage means 35, the time when the power failure occurred, the period of power failure, and the number of power failures can be read by the read / reset means 36 when necessary, and the display contents of the display means 40 and the storage means 35 It is convenient because you can reset the stored contents.

  In the above-described embodiment, the power failure detection means 38 explained both the number of times of power failure and the time of power failure as the power failure information. However, either the power failure time or the number of times of power failure is used, and the charge of power from the power supply facility 1 is used. As a discount criterion for discounting, for example, any one of a power failure time discount criterion, a power failure frequency discount criterion, a power failure time discount criterion, and a power failure frequency discount criterion may be used. Even if comprised in this way, the effect similar to above-mentioned embodiment is acquired.

  Here, the number of power outages (the number of occurrences of power outages) is determined by the power amount calculation means, for example, the central processing unit, as a power outage based on the voltage signal from the voltage detection means when the supply of power to the load, for example, the power consumer is stopped In this case, the power supply is resumed to the power consumer.

  The present invention is not limited to the above (respective) embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation. The present invention can be implemented by a computer, and the computer executes each process in the present embodiment based on a program recorded on a recording medium. The computer includes a single device such as a personal computer, and a plurality of devices. Any configuration such as a system in which apparatuses are connected to a network may be used. In addition, the computer in the present invention is not limited to a personal computer, but includes an arithmetic processing device, a microcomputer, and the like included in an information processing device, and is a generic term for devices and devices that can realize the functions of the present invention by a program.

1 is a block diagram showing a schematic configuration of a watt-hour meter according to the present invention. The flowchart for demonstrating operation | movement of the watt-hour meter of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electric power supply equipment, 2 ... Load, 3 ... Electronic watt-hour meter, 30 ... Input terminal, 31 ... Output terminal, 32 ... Voltage detection means, 33 ... Current detection means, 34 ... Electric energy calculation means, 35 ... Memory | storage Means 36 ... Reset means 37 ... Electricity rate discount judgment means 38 ... Power failure detection means 39 ... Electricity rate discount standard setting means 40 ... Display means 41 ... Communication means

Claims (8)

In the watt-hour meter capable of measuring the power supplied from the power supply facility to the power consumer, the cumulative value within a predetermined period and displaying the measured power amount on the display means,
A power failure detection means for detecting power failure information in a power failure state of the power supply facility;
Discount standard setting means capable of setting a discount standard for discounting the charge of power from the power supply facility;
When the power outage information from the power outage detection means exceeds the discount standard from the discount standard setting means, it is determined that the amount of power already supplied from the power supply facility to the power consumer is a discount target, and the determination result is A power rate discount judgment means for displaying on the display means;
An electric energy meter equipped with In the watt-hour meter capable of measuring the power supplied from the power supply facility to the power consumer, the cumulative value within a predetermined period and displaying the measured power amount on the display means,
A power failure detection means for detecting a power failure time in a power failure state of the power supply facility;
Discount standard setting means capable of setting a power outage time discount standard that is a discount standard for discounting the charge of power from the power supply facility;
When the power outage time from the power outage detection means exceeds the power outage time discount standard from the discount standard setting means, the power supplied from the power supply facility to the power consumer is determined as a discount target, and the determination result Power rate discount judgment means for displaying on the display means,
An electric energy meter equipped with In the watt-hour meter capable of measuring the power supplied from the power supply facility to the power consumer, the cumulative value within a predetermined period and displaying the measured power amount on the display means,
A power failure detection means for detecting the number of power failures in a power failure state of the power supply facility;
Discount standard setting means capable of setting a power failure frequency discount standard that is a discount standard for discounting the charge of power from the power supply facility;
When the number of power outages from the power outage detection means exceeds the power outage frequency discount criteria from the discount standard setting means, the amount of power already supplied from the power supply facility to the power consumer is determined as a discount target, and this determination A power rate discount judgment means for displaying the result on the display means;
An electric energy meter equipped with In the watt-hour meter capable of measuring the power supplied from the power supply facility to the power consumer, the cumulative value within a predetermined period and displaying the measured power amount on the display means,
A power failure detection means for detecting a power failure time and the number of power failures in a power failure state of the power supply facility;
Discount standard setting means capable of respectively setting a power outage time discount standard and a power outage frequency discount standard, which are discount standards for discounting the charge of power from the power supply facility,
The amount of power already supplied from the power supply facility to the power consumer when the power outage time and power outage from the power outage detection means exceed the power outage time discount standard and power outage frequency discount criteria from the discount standard setting means, respectively. Power rate discount judgment means for judging that the judgment result is displayed on the display means,
An electric energy meter equipped with The power failure information about power failure of the power supply facilities and stores the cumulative predetermined time period, the power according readable memory means by reading out instruction to the storage contents in one one claim 1, further comprising It is a meter. Power supply information supplied to the load from the power supply facility and power failure information related to a power failure of the power supply facility are accumulated and stored for a predetermined period, and storage means is further provided that can read out the stored contents by a read command. energy meter according to one any of claims 1 to 4. Discount criteria of the discount criteria setting means, there is present at a position distant from the display means, according to the communication means that can be set arbitrarily, one claim 1, further comprising Electricity meter. The storage content of the storage means is present at a position distant from the display means, is readable, and further includes a communication means capable of resetting the display content of the display means or the storage content of the storage means, The watt-hour meter of Claim 5 or 6 provided.

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