JP2004226223A - Power supply service method and system, watthour meter and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a system which provide valuable services to each customer, while preventing communication lines from getting congested and a data processing device from being forced a burden, in the case the number of customers who are objects receiving the services is increased. <P>SOLUTION: A power supply service system 1 includes a watthour meter 2 installed on a customer side and the data processing device 10 being connected to the watthour meter 2 through the communication lines and processing information collected by the watthour meter 2. The data processing device 10 has a means which stores pattern information of time slot segments having different values of power unit price and sends the pattern information to the watthour meter 2, and a means which receives and computes power consumption data being sent from the watthour meter 2. The watthour meter 2 has a means which receives the pattern information being sent from the data processing device 10 and stores the power consumption data for each power unit price corresponding to its measurement time slot, based on the pattern information, and a means which sends the power consumption data for the power unit price to the data processing device 10. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention collects data such as power consumption from a watt-hour meter provided in a power consumer (hereinafter, referred to as a “customer”) via a communication line, and provides the customer with various data based on the data. The present invention relates to a power supply service method and system, a watt hour meter, and a program for providing useful services.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, several technologies for reading information such as power consumption via a communication line have been proposed. For example, in Japanese Unexamined Patent Publication No. Hei 5-166091, "Usage signal transmission device and centralized watt hour meter", the power company collects the indicated values of the watt hour meter and transmits the total to the power company wirelessly. There has been proposed a device that detects the usage amount of each power source and that a power company turns on and off a breaker on the customer side by remote control.
[0003]
Further, Japanese Patent Application Laid-Open No. 2002-300724 proposes a system for centrally managing energy information such as electric power and gas via a communication line in "information management system for business related to power supply".
[0004]
By the way, if data such as power consumption is to be centrally managed for a large number of consumers via a communication line, there is a problem that a load on a device (server) for processing traffic and data on the communication line increases. Was.
[0005]
In the case where a current value is monitored and a switch (breaker) is remotely controlled based on the value, it is necessary to measure data for that in real time, and there is a problem that traffic on a communication line increases. .
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of such a conventional situation, and the combination of the function of a watt hour meter provided on each customer side and the function of a data processing device that processes meter reading data makes it possible to provide a service target. A power supply service method and system, which can provide useful services to each customer without congesting the communication line even when the number of consumers increases and without imposing a load on the data processing device, and a watt hour meter And to provide the program.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a power supply service system according to the first aspect of the present invention includes a watt-hour meter installed on the customer side and a power meter connected to the watt-hour meter via a communication line and collected from the watt-hour meter. A power supply service system having a data processing device for processing the information obtained, wherein the data processing device stores pattern information of one or more time zones having different power unit prices, and stores the pattern information in the power amount. And a means for receiving and totalizing the power usage data sent from the watt hour meter, wherein the watt hour meter receives the pattern information sent from the data processing device. Means for storing power usage data for each power unit price corresponding to a measurement time zone based on the pattern information, and storing the stored power usage data for each power unit price. Characterized by comprising a means for transmitting to the over data processing device.
[0008]
According to the first aspect of the present invention, the data processing device stores the time zone divisions having different power unit prices in a pattern and saves them, and the watt hour meter side can specify the power unit unit for each time period of each pattern. . Then, the watt hour meter saves the power consumption data for each power unit price category (charge category) at the measured time and time. This data is collected on the data processing apparatus side, and the power rate is calculated using the power unit price of each rate category stored in the data processing apparatus.
[0009]
Here, the “power supply service” means all services associated with power supply, and includes not only control of power supply but also provision of various kinds of information on power such as power consumption. “Power consumption data” means data from which the used power can be calculated.
The “power unit price” is sufficient if it can be associated with the power unit price, and includes, in addition to the power unit price itself, charge category identification information provided corresponding to the power unit price.
In addition, as a “pattern information of one or more time zone divisions having different power unit prices”, a charge division table in which power unit prices and charge divisions are stored in association with each other, and a predetermined time (for example, 24 hours a day) is stored in the power supply. It is divided into a plurality of time zone divisions with different unit prices, a charge division is associated with each time slot division, and a measurement pattern table is stored with measurement pattern identification information for each combination of the time division and the charge division, and By providing a pattern setting table in which the sections and the weighing pattern identification information are stored in association with each other, and these tables are used to manage each information, maintenance can be easily performed for a change in a fee or a change in a time zone section. . When such a table is provided, the watt hour meter stores information of the measurement pattern table and the pattern setting table.
[0010]
In the power supply service system according to the second aspect of the present invention, the data processing apparatus further includes means for classifying and registering the customers into groups, and means for calculating power consumption data as a group for each time zone, Means for transmitting power consumption data for each time zone of a group to which the customer belongs together with power consumption data for each time zone of the customer to the customer terminal.
[0011]
According to the second aspect of the present invention, while collecting power consumption data for each charge category, at the time of a specific service, power consumption data is collected in a cycle suitable for the service for each time zone according to a command from the data processing device. I do.
[0012]
An electric power supply service system according to claim 3 is a power meter installed on the customer side, and a data process connected to the electric meter and a communication line for processing information collected from the electric meter. A power supply service system including a device, wherein the data processing device includes: a unit for storing contact information; a unit for receiving electric data transmitted from the watt hour meter; and a customer using the electric data. Means for calculating the steady state electrical data change tendency, means for determining the presence of a person at the customer's home based on the electrical data change tendency, and means for notifying the contact based on the determination result. It is characterized by having.
[0013]
According to the third aspect of the present invention, in the data processing device, a change tendency of current, power, and the like in a steady state is stored for each consumer, and based on the stored tendency, presence of a person (whether or not power is consumed by daily life) is stored. ) Is determined, and a contact registered in advance is notified based on the result.
[0014]
Here, “electric data” means general electric data, and includes voltage data, current data, power data, and the like.
[0015]
A power supply service system according to a fourth aspect of the present invention provides a watt-hour meter installed on the customer side, and a data process connected to the watt-hour meter via a communication line and processing information collected from the watt-hour meter. An electric power supply service system including a device, wherein the data processing device receives, via a communication network, customer identification information and switch operation request information, and based on the operation request, Means for transmitting an operation command for a switch, wherein the watt-hour meter includes means for outputting a control signal for turning on or off the switch according to the operation command sent from the data processing device. It is characterized by.
[0016]
An electric power supply service system according to a fifth aspect of the present invention provides a watt hour meter installed on the customer side, and data processing which is connected to the watt hour meter via a communication line and processes information collected from the watt hour meter. A power supply service system including a device, wherein the data processing device includes an operating current table storing operating current information of a switch for each customer, and transmitting the operating current information to a watt hour meter of the customer. Means, wherein the watt-hour meter has a receiving means for receiving operating current information sent from the data processing device, and an operation for setting an operating current to the switch based on the received operating current information. Current setting means.
[0017]
According to the fifth aspect of the present invention, on the watt hour meter side, the operating current (breaking current value) of the switch can be set, and the operating current is set and changed based on information sent from the data processing device. .
[0018]
The watt hour meter according to the invention of claim 6 divides a predetermined time into a plurality of time zone divisions having different power unit prices, associates each time zone division with a charge division, and measures each combination of the time zone division and the charge division. The weighing pattern table stored with the pattern identification information stored therein, the pattern setting table storing the categorization by time and the weighing pattern identification information stored in association with each other, and the weighing pattern identification information of the measurement time is extracted by referring to the pattern setting table. Means for extracting a charge category of a time zone to which the measurement time belongs by referring to the measurement pattern table, means for storing measured power consumption data for each of the extracted charge categories, and storing the data. Means for transmitting power consumption data for each charge category with charge category information attached thereto.
[0019]
In the invention according to claim 6, information on the measurement pattern table and the pattern setting table is stored in the watt hour meter, and the power consumption data is stored for each charge category using this table.
[0020]
Note that this "save" includes a case where the value is sequentially added to the previous saved value (for each measurement) and saved as needed. Further, the "charge category" is only required to be able to be associated with the power unit price. For example, if the time zone category and the power unit price have a fixed relation, the meaning includes the time zone category.
[0021]
The watt hour meter according to the invention of claim 7 is characterized in that it comprises means for receiving operating current information of the switch, and means for setting the operating current of the switch based on the received operating current information. .
[0022]
According to the invention described in claim 7, the operating current of the switch can be set and changed based on the received information.
[0023]
An electric power supply service method according to an eighth aspect of the present invention provides an electric power supply service method for providing services to a consumer by using an electricity meter installed on the customer side and a data processing device communicating with the electricity meter. And categorizing and registering the customers in a group, calculating power consumption data as a group for each time zone, and, together with the power usage data for each time zone of the customer, Transmitting power consumption data for each time zone of the group to which the group belongs to the customer terminal.
[0024]
A power supply service method according to a ninth aspect of the present invention is a power supply service method for providing services to a customer using a watt hour meter installed on the customer side and a data processing device communicating with the watt hour meter. Storing the contact information, calculating the steady-state electrical data change tendency of the customer using the electrical data sent from the watt hour meter, based on the electrical data change tendency And a step of notifying the contact based on the determination result.
[0025]
A power supply service method according to a tenth aspect of the present invention is a power supply service method for providing service to a customer using a watt hour meter installed on the customer side and a data processing device that communicates with the watt hour meter. Receiving the change information of the contract power from the customer, transmitting the operating current information of the switch to the watt hour meter of the customer based on the change information, Setting an operating current for the device.
[0026]
According to the tenth aspect of the invention, when the contract power is changed, the operating current of the switch of the customer is changed through the watt hour meter.
[0027]
The program according to the invention of claim 11 is a program that operates on a data processing device that communicates with a watt-hour meter installed on the customer side, wherein the process includes classifying and registering the customers into groups, Computer processing for calculating the power consumption data for each time zone as the power consumption data for each time zone of the group to which the consumer belongs together with the power usage data for each time zone of the customer. Is executed.
[0028]
A program according to the twelfth aspect of the present invention is a program that operates on a data processing device that communicates with a watt-hour meter installed on the customer side, and stores a contact address and is sent from the watt-hour meter. A process of calculating a steady state electrical data change tendency of the consumer using the incoming electrical data; a process of determining the presence of a person at the customer's home based on the electrical data change tendency; and The process of notifying the contact is performed by a computer.
[0029]
The program according to claim 13 is a program that operates on a data processing device that communicates with a watt hour meter installed on the customer side, and stores a contract power change information from the customer, A process for transmitting the operating current information of the switch to the watt hour meter of the customer based on the change information is performed by the computer.
[0030]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described. FIG. 1 is a configuration diagram of a power supply service system 1 according to an embodiment of the present invention and a customer terminal that communicates with the system. In FIG. 1, a data processing device 10 is connected via a telephone network 5 to an electric meter for automatic meter reading (hereinafter, an electric energy meter) 2 attached to each customer house 4. Further, the data processing device 10 is connected to the customer terminal 3 of each customer home 4 via the Internet network 6. Note that the customer terminal 3 does not necessarily need to be at a customer's house, and may be a mobile terminal or the like.
[0031]
The data processing device 10 includes a communication unit 11 that performs data communication with the watt hour meter 2, an arithmetic unit 12 that performs data processing using power amount information collected from the watt hour meter 2, and a storage unit 13 that stores collected data. , And a web server 14 for providing web content via the internet network 6. The calculation means 12 includes a transmission / reception processing means 120, a multi-time zone measurement processing means 121, a saving information providing means 122, a base current information providing means 123, an abnormality detecting means 124, a load switching processing means 125, and a multi-stage control processing means. 126. The storage unit 13 has a charge section table 131, a measurement pattern table 132, and a pattern setting table 133.
[0032]
The data processing device 10 is installed in a business office of a power company or the like, and as shown in FIG. 2, the data processing device 10 and the watt hour meter 2 constitute the power supply service system 1.
[0033]
FIG. 3 is a functional block diagram of the watt hour meter 2. Here, the watt-hour meter 2 includes a central control circuit 201 for performing a process of measuring the amount of power and outputting a control command to a switch (breaker), a display circuit 202 for displaying the amount of power, and the like, and data for storing data. A storage memory 203, a load switch control circuit 204 that outputs a switch control signal in accordance with a command from the central control circuit 201, and converts each analog signal of voltage / current / leakage current input into a digital signal to the central control circuit 201. A voltage / current leakage current calculation circuit 205 to be output, a power amount calculation circuit 206 which calculates a power amount from a voltage input signal and a current input signal and outputs the digital amount to the central control circuit 201, and a leakage detected by the zero-phase current transformer ZCT. Leakage current detection circuit 208 that outputs a current value as an analog signal to voltage / current leakage current calculation circuit 205, and each phase current detected by current transformer CT Is converted to an analog signal, and a current input detection circuit 209 that outputs to the power amount calculation circuit 206 and the voltage / current leakage current calculation circuit 205. After converting each line voltage to an analog signal, the power amount calculation circuit 206 and the voltage / current leakage current calculation It comprises a voltage input detection circuit 210 for outputting to the circuit 205, a communication circuit 207 and a communication terminal 212 for performing data communication with the data processing device 10, and an operation circuit 211 for performing an operation input to the central control circuit 201.
[0034]
Next, the operation of the data processing device 10 and the watt hour meter 2 that constitute the power supply service system 1 will be described.
[0035]
[1. Multi-hour weighing process]
FIG. 4 is an example of the fee classification table 131 stored in the storage unit 13 of the data processing device 10. In this figure, a charge category number is provided for each power unit price. FIG. 5 is an example of the pattern setting table 133. The weighing pattern number is stored for each season and for each weekday, Saturday, and Sunday (holiday). In the example of FIG. 5, twelve patterns can be set. Here, as shown in the example of the weighing pattern table 132 in FIG. 6, the weighing pattern divides 24 hours a day into a plurality of time zone sections having different power rates, and associates each time zone section with a rate section. Things. Pattern numbers are assigned to different combinations of time zone classification and fee classification.
[0036]
Information of the pattern setting table 133 and the measurement pattern table 132 is sent to the watt hour meter 2 and stored in the data storage memory 203.
[0037]
The power amount calculation circuit 206 of the watt hour meter 2 calculates the power amount based on the voltage signal and the current signal passed from the voltage input detection circuit 210 and the current input detection circuit 209, and sends the calculated power amount to the central control circuit 201.
[0038]
Next, a measurement process of the central control circuit 201 of the watt hour meter 2 will be described with reference to FIG. The central control circuit 201 first determines whether or not the measurement start time area of the data storage memory 203 is blank (S101). If it is blank, the central control circuit 201 sets the current date and time for executing the measurement process to the measurement start time area. Write (S102).
Next, the current date and time are written in the measurement end time area (S103). Then, the weighing pattern number is extracted with reference to the information of the calendar and the pattern setting table stored in the data storage memory 203 (S104). Then, referring to the weighing pattern table, a fee category number at the measurement time is extracted from the correspondence between the time zone of the metric pattern number and the fee category (S105). The measured electric energy is added to the electric power consumption data of the memory area corresponding to the fee classification number (S106).
[0039]
This measurement process will be described in detail with reference to FIG. FIG. 7 is an explanatory diagram of a metering function for collecting power consumption data for each charge category. In this figure, since July belongs to season (3) and July 7 is Sunday from the calendar, the weighing pattern 9 in the season (3) and Sunday (holiday) columns of the pattern setting table is extracted. You. Then, the measured power consumption data is added to the charge category corresponding to the measurement time.
[0040]
Also, since July 24 is a weekday, pattern 7 is extracted from the pattern setting table, and the power usage data of the fee category corresponding to the measurement time is added according to the fee category of this pattern.
[0041]
Next, the transmission process of the collected power usage data in watt hour meter 2 will be described with reference to FIG.
[0042]
First, it is determined whether or not there is a data transmission request from the data processing device 10 (S201). If there is a data transmission request, the power consumption data of each charge category stored in the data storage memory 203; Then, measurement period data including the measurement start time and the measurement end time is transmitted (S202).
[0043]
This power usage data is transmitted in a transmission format as shown in FIG. In this figure, the transmission format of the power consumption data is mode information indicating power consumption data, an instrument ID for identifying a customer and a watt hour meter, the number of charge categories, a charge category number and its charge category. Power consumption data and measurement period data.
[0044]
After transmitting this data, the watt-hour meter 2 determines whether or not there is a notification of normal reception after a certain period of time (S203), and if there is a notification of normal reception, the power consumption data area of the data storage memory 203, Clear the start time data area and end time data area. The power consumption data area may not be cleared each time, but may be constantly added, and the data processing apparatus 10 may calculate a monthly difference to calculate the power consumption for the month.
[0045]
On the other hand, if there is no notification of normal reception in step S203, retransmission processing (S205, S207) and error processing (S206) are executed.
[0046]
Next, the reception processing of the power consumption data transmitted from the watt hour meter in the data processing device 10 will be described with reference to FIG.
[0047]
First, the multi-hour zone measurement processing unit 121 is started periodically and sends a transmission request for power consumption data to each watt-hour meter. Then, after a lapse of a predetermined time, it is determined whether or not the power consumption data has been normally received from the watt hour meter that has transmitted the transmission request (S301). If the data is received normally, a normal reception notification is sent to the watt hour meter (S302), and the power consumption data of the corresponding customer in the power consumption data file 134 is updated (S303). If the data is not normally received in step S301, retransmission processing (S304, S306) and error processing (S305) are executed.
[0048]
FIG. 9 shows an example of the power consumption data file. In this figure, the power rate obtained by multiplying the power consumption of each rate category for a predetermined period (for example, one month) by the power unit price of each rate category is stored for each customer. Based on this data, the consumer is charged for the electricity fee.
[0049]
As described above, in the watt hour meter 2, since the power amount is collected for each charge category corresponding to the power unit price, it can be transmitted to the data processing device 10 in a long cycle depending on the memory capacity of the watt hour meter 2. Transmission load can be reduced.
[0050]
[2. Information provision processing]
[2-1. Provision of saving information]
First, consumers are classified into a plurality of patterns (consumer patterns) according to the family structure, the residence area, and the like.
[0051]
The data processing device 10 outputs a change command of the measurement cycle and a transmission command for each time zone to the watt hour meter 2. This command may be transmitted periodically by the data processing device 10, for example, on a monthly basis, or may be executed upon a request from a customer.
[0052]
Upon receiving this command from the data processing device 10, the watt hour meter 2 collects power usage data for each time zone with time zone information in addition to collecting power usage data for each charge category. For example, the power consumption is stored in the data storage memory 203 with time zone information added to the power consumption every 10 minutes. Then, in response to a call (polling) from the data processing device 10, the stored data is transmitted.
[0053]
The saving information providing means 122 of the data processing device 10 shows the minimum, maximum, and average power consumption curves of the power rate for each customer pattern. Each of these curves is superimposed and displayed on a power consumption curve for each customer. FIG. 10 shows a display example. In this figure, the customer A (graph 1) and the average value (graph 2) for each time of the customer pattern are displayed, but the customer with the minimum total power consumption and the customer with the maximum total power consumption are displayed. May be shown.
[0054]
The saving information providing unit 122 stores this data in the web server 14. By accessing the WEB server 14 through the customer terminal 3, each customer can know his / her position and the direction of improvement in the same customer pattern.
[0055]
[2-2. Another Example of Providing Saving Information]
For the above-mentioned power consumption data for each time zone, the power rate for each time zone is calculated using the power unit price. Then, when the customer generates a rate that is equal to or more than a predetermined rate as compared with the average value of the hourly power rates in the customer pattern, the generated location is displayed on the graph of FIG. FIG. 11 shows an example of the display, in which the time period indicated by the arrow exceeds a predetermined charge rate when compared with the average value. It is displayed on the customer terminal 3. Also, by superimposing the charge graphs, it is possible to immediately understand which part has the most influence on the charge and the amount of power consumption at that time in the same customer pattern.
[0056]
The customer may be able to input improvement (saving target) information from the customer terminal 3. For example, as shown in FIG. 12, in a graph of power consumption, a user clicks on a time slot to be improved, displays the current average power usage by the customer in that time slot, and the customer changes the value. Check and enter the target value.
[0057]
Then, based on the data, the saving information providing unit 122 sends a warning mail when the average power consumption in the time zone exceeds a predetermined ratio, for example, 10% of the target value. As a result, the consumer recognizes that the target value has been exceeded, and can make improvements. In particular, since the management can be performed for each time zone, a vague goal setting is not performed, and in relation to FIG. 11, the improvement is started from the time zone that most affects the fee, that is, has a high saving effect. be able to.
[0058]
The predetermined ratio that triggers the caution mail transmission may be changed depending on the day. For example, when it is determined whether or not the target has been achieved in units of one month, the strictness is set strictly until the middle of the month, and the stiffness is set closer to the end of the month. Alternatively, some patterns may be prepared, and the customer may select them.
[0059]
Further, when the target is achieved, incentives such as giving points to the customer or discounting the electricity rate may be given.
[0060]
[2-3. Provision of base current information]
The power consumption data is measured for each time period during which the human activity is relatively small, such as at night, and the data is displayed on the customer terminal 3 through the WEB server 14 together with the average data of the same customer pattern.
[0061]
For example, the base current information providing unit 123 of the data processing device 10 measures which of the day and night uses more electric power for each customer, and classifies the customer into day or night type. Then, in the case of the day type, the power consumption for each night time zone is measured, and in the case of the night type, the power consumption for the day time zone is measured. The power consumption is transmitted from the watt hour meter 2 to the data processing device 10 with time information attached, for example, every 10 minutes, for each time period.
[0062]
The base current information providing unit 123 uploads the power consumption data with time (or current data with time) to the WEB server 14. The customer accesses the WEB server 14 through the customer terminal 3 and, based on the data such as his / her own power consumption and the average value of the customer pattern to which the customer belongs, the power consumption when he is not normally active. Can be grasped.
[0063]
This allows the consumer to know the amount of current or power flowing as a base even when the switch such as an electric appliance is turned off.
[0064]
In the measurement, the power consumption or the current value may be measured based on a measurement start request from a customer input through the WEB server 14.
[0065]
[2-4. Provision of abnormality detection information]
The watt hour meter 2 measures and stores the maximum value, the minimum value, and the average value of the voltage and current in a short cycle. A suitable cycle is, for example, every minute. The abnormality detection means 124 of the data processing device 10 obtains operation data (current consumption data based on the operation) of the electric appliance or the like in the customer based on the data. The operation tendency of an electric appliance refers to power consumption data based on the operation of a device that is constantly turned on and off, such as a refrigerator or a cooling and heating appliance. FIG. 13 is an example of an operation data file 135 that stores operation data of electric appliances for each consumer. A current change corresponding to the operation pattern is detected from the master file of the current consumption data based on the operation of each appliance, and the current change is based on the operation of the appliance from the range of the current consumption value and the operation interval.
[0066]
The customer registers the contact information at the time of abnormality detection through the customer terminal 3. This contact may be an e-mail address or a telephone number. In the case of an e-mail address, the abnormality is notified by e-mail, and in the case of a telephone number, the abnormality is notified by voice.
[0067]
Then, an abnormality detection item is selected. For example, the user selects the presence / absence confirmation and inputs the identification number and password of the target customer. Then, a confirmation start date and time are input. For example, it is assumed that the home of an elderly person living alone is set as the object of the existence check, and an e-mail address of the relative is set as a contact when an abnormality is detected. These setting information are stored in the storage unit 13 of the data processing device 10. The abnormality detecting means 124 sends an electronic mail for abnormality detection to the registered e-mail address when the change in voltage or current is only a change in the operation tendency based on the operation data file of the customer and the change continues for a certain period of time. send an email. This e-mail is delivered via a mail server (not shown).
[0068]
For example, when an old man falls down with the air conditioner on, the on / off of the air conditioner does not always have a fixed cycle due to the influence of the outside air temperature or the like. For this reason, collecting operating data of the consumer's steady-state appliances in advance is more accurate and quicker than detecting abnormalities based only on periodic changes in voltage and current. Abnormalities can be found at
[0069]
If the time until abnormality detection can be set relatively long on the order of several days, a threshold is determined in advance based on the amount of change in the power consumption data for each past time, and if there is a change exceeding the threshold. If there is no change exceeding the threshold, it is regarded as abnormal, and if the abnormal state continues for a certain period of time, a notification of abnormality detection is given.
[0070]
[2-5. Another embodiment of abnormality detection information]
In the above description, the operation data of the electric appliance for each consumer is stored to detect that there is no change in electric current due to daily life, and the abnormality notification is performed. This is to detect a change in current caused by a typical operation and to notify an abnormality.
[0071]
First, the customer, who is a customer, selects the out-of-home mode via the customer terminal 3 as an abnormality detection item. Then, the identification number and password of the customer are input, and the monitoring start date and time are set.
[0072]
When the monitoring start date and time is reached, the abnormality detecting means 124 takes in the voltage and current data from the watt-hour meter 2 of the customer, and based on the operation data of the appliance of the customer collected before that, based on the current data different from the operation data. Monitor for the presence of a waveform. When a current waveform different from the operation data is found, a notification of abnormality detection is sent to an e-mail address or telephone number registered in advance.
[0073]
[3. Load switching processing]
Next, the operation of the load switching processing means 125 will be described. First, based on the WEB screen, the customer terminal 3 inputs an identification number and a password of a customer to be operated by a switch (breaker). Then, an operation command of “cut” (open) or “enter” (close) is set and input. These pieces of input information are sent from the WEB server 14 to the calculation means 12. The calculating means 12 outputs an operation command to the target watt-hour meter 2 based on the input data. In response to this operation command, a control signal is sent from the central control circuit 201 of the watt hour meter 2 to the switch via the load switch control circuit 204, and the switch operates.
[0074]
For example, when a consumer forgets to turn off the power, it is possible to cut off the source from a remote place. In addition, in cooperation with the government and the police, the switch can be operated remotely to use as a security system at the time of a police rush.
[0075]
[4. Multi-stage control processing]
An operation current setting means for setting an operation current of the switch is provided in the load switch control circuit 204 of the watt hour meter 2. FIG. 14 is a configuration diagram of the operating current setting means. Here, the operating current setting means includes a length adjusting unit 240, an arm 241 to which the length adjusting unit 240 is attached, an arm 242 connected thereto, a contact 243 attached to the arm 242, and a fixed contact 244. , A pulse oscillator 245, and a bimetal 248. Further, the arm 241 and the arm 242 are movably connected by a connection portion 247, and the arm 241 is configured to be rotatable around a fulcrum 246.
[0076]
The length of the portion A of the length adjusting unit 240 can be adjusted by an operation current setting command from the central control circuit 201. A current proportional to the current supplied to the consumer flows through the bimetal 248.
[0077]
Next, the operation of the operating current setting means will be described with reference to FIG.
In FIG. 15A, the bimetal 248 bends according to the magnitude of the current flowing through the bimetal 248. As a result, the length adjustment unit 240 is pushed, and the arm 241 rotates about the fulcrum 246. In conjunction with this operation, the arm 242 moves in the direction of arrow B, and the contact point 243 also moves. Note that, in the drawing, a black portion of the contact 243 is a conductor portion. In FIG. 15A, the contact 244 is in contact with a non-conductor portion.
[0078]
When the temperature further rises, as shown in FIG. 15B, the curvature of the bimetal 248 increases, and the conductor portion C of the contact 243 contacts the contact 244. As a result, a pulse is generated from the pulse oscillator 245, and the switch in the “on” state (the “closed” state) becomes the “off” state (the “open” state). Note that the switch is a latching type that alternately turns on and off by inputting a pulse.
[0079]
Then, when the temperature of the bimetal 248 decreases due to the current blocking state, the curvature of the bimetal 248 gradually decreases, and the contact 244 separates from the conductor portion C again as shown in FIG.
[0080]
As the temperature of bimetal 248 further decreases, contact 244 contacts conductor portion D. As a result, a pulse is generated from the pulse oscillator 245, and the switch in the “off” state is turned on. Note that the return to the “entered” state is performed by outputting a pulse to the switch when the bimetal 248 returns to the original state and when the return instruction from the data processing device 10 is satisfied. It may be.
[0081]
The operating current value (current limit value) can be increased by reducing the length of the portion A of the length adjusting section 240, and conversely, the operating current value can be reduced by increasing the length of the portion A.
[0082]
If it is necessary to return the switch immediately, that is, to bring the switch into the “ON” state, the operating current is changed from small to large according to an operating current setting command from the data processing device 10 to immediately return. be able to.
[0083]
In the above description, “turning off” and “turning on” are performed alternately by inputting a pulse. However, the contact 243 is separated at the C portion and the D portion, and when the contact 244 comes into contact with the C portion, the “off” state is set. A pulse may be generated, and a pulse that is brought into the “on” state when it comes into contact with the portion D may be generated. In this case, the switch uses a type in which a signal is input separately for closing and opening.
[0084]
Then, the multi-stage control processing means 126 of the data processing device 10 stores the operating current of the switch for each customer, and transmits the operating current set value to each wattmeter 2.
[0085]
When the rate plan is temporarily changed, for example, when electricity is used in a seasonal event or in a local event such as a festival, etc., the data processing device 10 can immediately change the rate plan by inputting the rate plan change from the customer terminal 3. Then, the operating current value may be changed.
[0086]
Particularly, when the power consumption in the summer peaks, for example, by temporarily lowering the contracted power plan (for example, from 40A to 30A), the power company can easily take measures against the peak, and for the consumers, There is an advantage that the electricity rate is reduced.
[0087]
Also, for example, the power supply amount can be reduced by stepwise reducing the operation current, instead of immediately stopping the power supply to the unpaid person. In particular, a table is provided that stores the reduction ratio of the operating current for each season or time zone in a plurality of patterns, and the operating current is reduced according to the corresponding pattern according to the degree of unpaid or bad degree of the unpaid user. In this way, it is possible to automatically call attention to the unpaid person while avoiding seriously affecting the life of the unpaid person by uniformly stopping the power supply, and to reduce the rate of reduction during peak power hours. It is possible to operate effectively considering the transition of the power consumption such as increasing the power consumption.
[0088]
Further, with the liberalization of electric power, it is expected that the power supply by a specific-scale electric power company (PPS: Power Producer and Supplier, hereinafter referred to as a trader) will increase. As a result, the system becomes unstable, and the cost of backup measures becomes excessive. In this case, the contract power is reduced to a predetermined rate when the supplier cannot supply the planned amount due to an accident or the like as a risk burden for the customer who wants to purchase the power from the supplier ( For example, from 40 A to 30 A), the power company can maintain the stability of the system without having excessive facilities. In addition, consumers can purchase inexpensive power on the premise of such risks, and even in the event of an accident, power supply is not completely stopped, so there is no significant damage.
[0089]
In the above description, the operating current setting means for setting the operating current of the switch is provided in the load switch control circuit 204 of the watt-hour meter 2, but the operating current setting means (function) is provided in the central control circuit 201. May be provided. In this case, the operating current setting means outputs a turn-off command to the switch through the load switch control circuit 204 when the power consumption exceeds the set value for a certain period of time based on the power data from the power calculation circuit 206. I do.
[0090]
According to the present embodiment, pattern information from which the correspondence between the measurement time zone and the unit price of electricity can be extracted is stored in the watt-hour meter provided on each customer side, and the data processing device sends the information to each watt-hour meter. By transmitting the pattern information and transmitting the power consumption from the watt hour meter for each charge category, there is no need to transmit the power consumption every hour, and congestion of the communication line can be suppressed. In accordance with a command from the data processing device, the watt hour meter measures power consumption or electrical data such as voltage and current for each time zone, and transmits it with time information. By shifting the transmission timing from the meter, it is possible to apply high-quality services that meet the needs of customers while avoiding congestion in communication lines.
[0091]
In particular, since the time zone and the power unit price are associated with each pattern by the charge category table and the weighing pattern table, maintenance is easy for a change in the charge or a change in the time zone.
[0092]
In addition, since the watt-hour meter is provided with operating current setting means for outputting a pulse in a bimetal system, and the operation current of the switch is changed according to a command from the data processing device, it is necessary to sequentially measure the current consumption of the consumer. In addition, even if the number of consumers increases, congestion of communication lines can be suppressed.
[0093]
Although the watt hour meter has been described as an example in the present embodiment, a gas or water flow meter can be similarly applied as a meter reading device.
[0094]
【The invention's effect】
As described above, in the present invention, the combination of the functions of the watt hour meter side and the data processing device prevents the communication line from becoming congested even when the number of consumers to be serviced increases, and also enables data processing. It is possible to provide useful services that meet the diversifying needs of each customer without placing a burden on the device.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a power supply service system according to an embodiment of the present invention and a customer terminal that communicates with the system.
FIG. 2 is an apparatus configuration diagram of a power supply service system.
FIG. 3 is a functional block diagram of a watt hour meter.
FIG. 4 is an explanatory diagram of a data configuration example of a fee classification table in FIG. 1;
FIG. 5 is an explanatory diagram of a data configuration example of a pattern setting table in FIG. 1;
FIG. 6 is an explanatory diagram of a data configuration example of a measurement pattern table in FIG. 1;
FIG. 7 is an explanatory diagram of a weighing function of the multi-time zone weighing processing means of FIG. 1;
FIG. 8 is an explanatory diagram of a transmission format of power consumption data according to the embodiment of the present invention.
FIG. 9 is an explanatory diagram of a data configuration example of a power usage data file of FIG. 1;
FIG. 10 is an explanatory diagram of a power consumption curve displayed on a customer terminal.
FIG. 11 is an explanatory diagram of a case where attention is displayed on a power consumption curve.
FIG. 12 is an explanatory diagram of a saving target value input screen.
FIG. 13 is an explanatory diagram of a data configuration example of an operation data file in FIG. 1;
FIG. 14 is a configuration diagram of an operating current setting means provided in the load switch control circuit of FIG. 3;
15A and 15B are explanatory diagrams of the operation of the operating current setting means of FIG. 14; FIG. 15A is a diagram when the bimetal starts operating, and FIG. 15B is a contact when a switching command is issued to the switch; 15 (c) is a diagram in the middle of return, and FIG. 15 (d) is a diagram showing the position of the contact point when a command is issued to the switch.
FIG. 16 is a flowchart of a measurement processing procedure of the watt hour meter.
FIG. 17 is a flowchart of a power consumption data transmission processing procedure in the watt hour meter.
FIG. 18 is a flowchart of a reception processing procedure of power consumption data transmitted from the watt hour meter in the multi-hour measurement processing means of FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Power supply service system, 2 ... Watt hour meter, 3 ... Customer terminal, 4 ... Customer house, 5 ... Telephone network, 6 ... Internet network, 10 ... Data processing device, 11 ... Communication means, 12 ... Calculation means, 13 ... Storage means, 14 Web server, 120 transmission / reception processing means, 121 multi-time period measurement processing means, 122 saving information providing means, 123 base current information providing means, 124 abnormality detection means, 125 load switching processing Means, 126: Multi-stage control processing means, 131: Charge section table, 132: Metering pattern table, 133: Pattern setting table, 134: Power consumption data file, 135: Operation data file, 201: Central control circuit, 202: Display Circuit, 203: data storage memory, 204: load switch control circuit, 205: voltage / current leakage current calculation circuit, 206 Power amount calculation circuit, 207 communication circuit, 208 leakage current detection circuit, 209 current input detection circuit, 210 voltage input detection circuit, 211 operation circuit, 212 communication terminal, 240 length adjustment unit, 241, 242: arm, 243, 244 ... contact, 245 ... pulse oscillator, 246 ... fulcrum, 247 ... connection part

Claims (13)

A power supply service system including a watt hour meter installed on a customer side and a data processing device connected to the watt hour meter through a communication line and processing information collected from the watt hour meter, The processing device stores pattern information of one or more time zone divisions having different power unit prices, and transmits the pattern information to the watt-hour meter, and power consumption data transmitted from the watt-hour meter. The power meter receives the pattern information sent from the data processing device, and, based on the pattern information, calculates the power consumption for each power unit price corresponding to the measurement time zone. A power supply service system comprising: means for storing data; and means for transmitting the stored power usage data for each power unit price to the data processing device. Beam. The data processing device includes means for classifying consumers into groups, means for calculating power consumption data as a group for each time zone, and the power consumption data for each time zone of the customer to which the consumer belongs. The power supply service system according to claim 1, further comprising means for transmitting power consumption data for each time zone of the group to the customer terminal. A power supply service system including a watt hour meter installed on a customer side and a data processing device connected to the watt hour meter via a communication line and processing information collected from the watt hour meter, wherein the data The processing device is a unit that stores contact information, a unit that receives electric data sent from the watt hour meter, and a unit that obtains a steady state electric data change tendency of a consumer using the electric data, A power supply service system comprising: means for determining the presence of a person at a customer's house based on the change tendency of the electrical data; and means for notifying the contact based on the determination result. A power supply service system including a watt hour meter installed on a customer side and a data processing device connected to the watt hour meter via a communication line and processing information collected from the watt hour meter, wherein the data The processing device includes means for receiving customer identification information and switch operation request information, and means for transmitting a switch operation command to the wattmeter based on the operation request. And a means for outputting a control signal for turning on or off the switch in accordance with the operation command sent from the data processing device. A power supply service system including a watt hour meter installed on a customer side and a data processing device connected to the watt hour meter via a communication line and processing information collected from the watt hour meter, wherein the data The processing device includes an operating current table that stores operating current information of the switch for each customer, and a transmission unit that transmits the operating current information to a watt hour meter of the consumer, wherein the watt hour meter includes the data Power, comprising: receiving means for receiving operating current information sent from the processing device; and operating current setting means for setting an operating current to the switch based on the received operating current information. Supply service system. A metric pattern table that divides a predetermined time into a plurality of time zone segments having different power unit prices, associates each time zone segment with a fee segment, and stores metric pattern identification information for each combination of the time zone segment and the fee segment. And a pattern setting table storing the division by time and the measurement pattern identification information in association with each other, and extracting the measurement pattern identification information of the measurement time by referring to the pattern setting table and measuring the measurement time by referring to the measurement pattern table. Means for extracting a charge section of a time zone section to which it belongs, means for storing measured power usage data for each of the extracted charge sections, and storing the stored power usage data for each charge section in charge section information. And a means for transmitting the power meter. A watt-hour meter comprising: means for receiving operating current information of a switch; and means for setting an operating current of the switch based on the received operating current information. A power supply service method for providing a service to a consumer using a watt hour meter installed on the customer side and a data processing device that communicates with the watt hour meter, wherein the customers are classified into groups. Calculating the power consumption data as a group for each time period, and, together with the power consumption data for each time period of the customer, the power consumption data for each time period of the group to which the customer belongs, in the customer terminal. Transmitting to the power supply service method. A power supply service method for providing a service to a consumer using a watt hour meter installed on the customer side and a data processing device that communicates with the watt hour meter, the method comprising: storing contact information; Calculating the steady state electrical data change tendency of the customer using the electrical data sent from the watt hour meter, and determining the presence of a person at the customer home based on the electrical data change tendency, Notifying the contact based on the result of the determination. A power supply service method for providing a service to a customer using a watt hour meter installed on the customer side and a data processing device that communicates with the watt hour meter, comprising: information on a change in contract power from the customer Receiving the operating current information of the switch to the watt hour meter of the customer based on the change information, and setting the operating current to the switch on the watt hour meter side, A power supply service method, comprising: A program that runs on a data processing device that communicates with a watt hour meter installed on the customer side. And a process of outputting the power usage data for each time zone of the group to which the consumer belongs together with the power usage data for each time zone of the customer. A program that operates on a data processing device that communicates with a watt hour meter installed on the customer side, the process including storing contact information, and using the electrical data sent from the watt hour meter to the customer. A process of calculating the steady state electrical data change tendency, a process of determining the presence of a person at the customer's home based on the electrical data change tendency, and a process of notifying the contact based on the determination result. A program to be executed by a computer. A program that operates on a data processing device that communicates with a watt hour meter installed on the customer side, a process for storing change information of contract power from the customer, and a process for storing the power of the customer based on the change information. A program for causing a computer to execute a process of transmitting switch operating current information to a meter.

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