KR20020085905A - System of realtime power consumption remote measuring and deferential charging system based on pager system and method thereof - Google Patents

Abstract

PURPOSE: A method for remotely detecting a load and performing a differential billing in real time using a pager and a system therefor are provided to guide the equalization of power consumption distribution by a consumption house and reduce the construction cost of a generation equipment according to the stable security of a power preliminary rate. CONSTITUTION: A digital checking system(20) detects a power use quantity according to a consumption house in real time, and converts and generates the detected power quantity into a digital value. A power management system(40) has a consumption house DB(42) for accumulating and storing the real-time use power quantity according to each consumption house and managing the stored real-time use power quantity according to a consumption house ID, and a power rate levying system(43) for applying a discount rate to the accumulation power value of the consumption house DB(42) according to a discount time and differentially billing and levying a power rate according to each consumption house. The power management system(40) has a power center computer(41) linked to a totalizing system(44) for totalizing remote checking information uploaded from the digital checking system(20). A paging service system(30) includes a pager(31) and a paging center computer(32) for being installed between the digital checking system(20) and the power management system(40) and supporting a bidirectional wireless communication of information associated with the real-time remote check.

Description

System of realtime power consumption remote measuring and deferential charging system based on pager system and method

The present invention uses the two-way pager to read the power consumption information of the customer in real time, and by applying a discount or a premium weight to the amount of power used by the meter reading time, induce the leveling of the power consumption distribution by the customer to ensure stable power reserve ratio The present invention relates to a method and system for real time load detection and differential charging using a wireless pager to reduce the construction cost of power generation facilities and to efficiently utilize the system resources that are being specified.

Traditionally, the total amount of electricity consumed by the power receivers, including homes, offices, and factories, has been achieved by direct meter reading. This electricity consumption metering method requires a lot of manpower and secondary work for the computerization of the meter information, which increases the management cost of the power supplier.

Recently, a technology for remotely reading the power consumption of a consumer using a wireless pager has been applied for a patent application 10-1996-032713 (name: automatic meter reading device using a wireless call system), patent application 10-1998-045947 (name: bidirectional) Remote metering system using paging system and remote metering service method), patent application 10-2000-011448 (name: remote metering system using the Internet and two-way wireless call network) has been proposed.

In the above-mentioned prior patent application 10-1996-032713, the amount of electricity, etc. is detected as a digital value and sent to the central office of the power business on a regular basis through the wireless calling system, and the central office uses the fee per unit period. It suggests a technology that can be notified through a wireless call system.

In the other prior patent application 10-1998-045947, a meter reading center including a management server constructed by a predetermined program for performing remote meter reading, and a sensor reading unit and a meter reading unit for detecting the usage and situation of electricity, etc. It is a two-way paging system for delivering detected information to a meter reading center through a wireless connection, and the wireless metering system transmits the information read from the two-way paging terminal by two-way paging transceiver and a predetermined signal protocol. It provides a remote metering method comprising the steps and transmitting the meter reading information received at the bidirectional paging transceiver to the bidirectional paging terminal and the meter reading information collected at the bidirectional paging terminal to the management server of the metering sensor.

In another prior patent application 10-2000-011448, a power meter is read by a meter, and the value read by the meter is loaded on a radio frequency by a two-way radio call terminal and passed through a communication network such as a repeater or the Internet. By providing the server of the server and the energy supplier's server, it is proposed to reduce the employment cost of the meter due to the automated meter reading and to prevent the dispute between the subscriber and the meter in advance.

However, the above patent application technology uses a wireless pager to remotely read the amount of power consumed by the consumer, thereby achieving unmanned and automated meter reading system, and the possibility of occurrence of all social problems during direct meter reading by the meter reader. The focus is on.

On the other hand, the supplier supplying power to the consumer side should secure a considerable amount of power reserve for stable power supply. Since this power reserve ratio is determined based on the instantaneous power consumption peak value, the instantaneous maximum power consumption at a specific time period or season is increased regardless of the average power consumption by each customer.

The increase in the power reserve rate will soon require the expansion of the power plant, resulting in enormous costs for the construction of power generation facilities.

Accordingly, in order to maximize the overall power use efficiency by maximizing the distribution of daily power usage, the power supplier is introducing a power distribution distribution policy such as applying a discounted discount rate to the late-night power usage fee.

However, since most power consumers use the power without seriously considering the problem of securing the power reserve ratio as described above, this problem remains a burden on the power supply side.

Therefore, there is a demand for an institutional device for recognizing the above-mentioned problems and inducing power consumption at the peak time, which is a decisive reference value for setting reserve power, to the maximum.

The purpose of the present invention is to combine the wireless pager-based remote metering technology and the power consumption distribution policy, real-time load detection and differential charging method using a wireless pager to solve the problem of securing a stable power reserve, which is the main concern of the power provider side. And that system.

Another object of the present invention is to provide a real-time load detection and differential charging method and system using a wireless pager that can efficiently utilize the radio call system resources that are already being specified.

Another object of the present invention is to provide a real-time load detection and differential charging method and system using a wireless pager that can accurately apply a premium for power consumption at a specific time by performing a real-time metering of the power consumption of the customer. have.

Another object of the present invention is to allow the power receiver to enter into a maximum power use contract with the power supplier and to apply the progressive surcharge for power use at a specific time based on the customer's own power use at a specific time. To provide a real-time load detection and differential charging method and system using a wireless pager to create a condition that can suppress the maximum.

1 is a block diagram of a real-time remote load detection and differential charging system based on a wireless call system according to the present invention.

Figure 2 is a detailed block diagram of a digital meter reading system that is a customer facility applied to the present invention.

3 is a flowchart illustrating a wireless call system based real time remote load detection and differential charging method according to the present invention.

4 is a flowchart illustrating an operation process of a digital meter reading system applied to the present invention.

5 is a flowchart illustrating an operation process of another embodiment of a digital meter reading system applied to the present invention.

6 is a graph illustrating a power usage surcharge associated with a power peak time interval according to the present invention.

7 is a graph illustrating a selective premium associated with a power peak time interval under a customer contract power setting condition according to the present invention.

※ Explanation of symbols about main part of drawing ※

10: Consumer (load) 20: Digital meter system

21: CPU 22: program memory

23 display 24 digital meter

25: meter reading sensor 26: memory

30: wireless call service system 31: wireless pager

32: wireless call center computer 40: power management system

41: power center computer 42: customer DB

43: electricity bill collection system 44: aggregate computer

50: power generation system 60: substation system

Features of the real-time load detection and differential charging system of the present invention for achieving the above object is a digital meter system for detecting the power consumption per customer in real time, and converts the detected power amount into a digital value and is installed for each power customer, and for each customer From the customer DB that accumulates and stores the real-time power consumption, the electric charge rate collection system that charges and collects the electric charges for each customer differentially by applying a premium rate to the integrated power value of the customer DB for each time period, and from each customer-side digital detection system. A power management system including a power center computer linked to an aggregation system that aggregates and uploads the remote meter reading information, and is installed between the digital detection system and the power management system to support two-way wireless communication of information related to real-time remote meter reading. Including a wireless paging service system Is in.

A feature of the real-time load detection and differential charging method of the present invention for achieving the above object is to put the real-time power consumption information detected by the digital meter in the digital metering system of the power receiver on the carrier frequency of the radio pager communication. Transmitting to the aggregation system side through a server, classifying real-time power consumption per unit time remote meter reading information for each consumer aggregated in the aggregation system side by customer ID, and storing the information and accumulated power amount in a customer DB; The method includes the step of claiming and collecting the total power rate by reading the remote reading information for each customer ID accumulated in the customer DB and selectively applying a premium rate only to the peak time reading minutes.

Another feature of the real-time load detection and differential charging method of the present invention for achieving the above object is to put the real-time power consumption information detected by the digital meter of the digital detection system of the power receiver on the carrier frequency of the wireless pager Transmitting to the aggregate system side through the communication server, and real-time power meter reading per unit time for each consumer aggregated by the aggregate system side by customer ID and storing the information and the accumulated power amount in the customer DB as a table information state And classifying the peak time reading minutes by reading the remote reading table information for each customer ID accumulated and stored in the customer DB, and then selectively charging and collecting the total power fee by selectively applying a premium rate for the peak time minutes. It's about including the steps.

Another characteristic of the real-time load detection and differential charging method of the present invention for achieving the above object is that the power receiving party contracts an arbitrary amount of power used by the power supply side so that the premium rate is applied when the contracted power exceeds the peak time premium. And transmitting real-time power consumption information per unit time detected by the digital meter in the digital metering system of the power receiver on the carrier frequency of the pager to the counting system side through the pager communication server, and the counting system side. Classifying real-time power consumption remote meter reading information per unit time aggregated by the customer ID and storing the information and accumulated power amount in the customer DB, and read the remote meter reading information for each customer ID accumulated in the customer DB Inspection when the contracted power is exceeded within the peak time period Billing and collecting the total power bill by selectively applying a premium rate only for the minute.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of a system of the present invention. As referred to herein, the present invention is a digital meter system 20 installed in each customer unit, a wireless call service system 30 supporting bidirectional communication, and a power management system 40 for supplying and managing power. It is composed.

The power center computer 41 in the power management system 40 has a customer fee 42 for storing use power accumulation information and a set contract amount information for each customer and an electric charge for each customer based on the accumulated power value of the customer DB. It is linked to the power bill collection system 43 for calculating, billing and collecting the data, and the aggregation system 44 for processing the real-time power consumption information uploaded and remotely read from each customer.

In addition, the power center computer 41 has a structure for operating and managing the power generation system 50 with power reserve ratio setting information, and the power generated by the power generation system is transformed into respective customer powers through the substation system 60, respectively. It has a structure that is supplied to the customer (load) 10 side of the.

Between the power management system 40 and the digital meter reading system 20 installed for each customer, a wireless call service system 30 for transmitting bi-directional metering control signals and supporting bidirectional communication for receiving remote meter reading information is provided. Install. The wireless call service system 30 includes a wireless call center computer 32 and a wireless pager 31 that is coupled to each digital metering system for each demand. The radio metering wireless control transmission signal of the radio call center computer 32 in the radio call service system 30 is directed to the radio pager 31 coupled to the digital meter system 20 installed for each customer 10 through the radio call network. The remote meter digital information carried on the carrier frequency of the pager is transmitted to the wireless call center computer 32 through the same wireless page network.

2 is a detailed block diagram of the digital meter reading system. As referred to herein, the digital meter reading system 20 has a CPU 21 therein, and the CPU 21 reads the wireless pager 31 and the metering power reading result for the connection with the wireless paging system. It is configured by connecting a memory 26 for storing and integrating, a program memory 22 for storing an operating program of the metering system, a display 23 for indicating the accumulated power amount, and a digital meter 24 for measuring the amount of power consumption as a digital value. do.

The digital meter 24 is connected to the sensing signal of the meter reading sensor 25 installed in the inlet line of the consumer.

The meter reading sensor 25 may be a current transformer (CT) installed in the incoming line of the receiving power.

Referring to the operation of the system of the present invention configured as described above are as follows.

First, the power generation system 50 generates a predetermined amount based on the power demand prediction value of the power management system 40. The electric power generated in this way is transformed into consumer power through the substation system 60 and then supplied to the consumer 10 as load power.

The power supplied to each customer is consumed according to the power demand of the customer, and the consumption is sensed by the power meter reading sensor of the digital metering system 20 and integrated or transferred to the aggregation system of the power management center through the wireless call system. Uploaded and aggregated.

Looking at the sensing process of the load power consumption by the digital meter reading system 20, the metering sensor 25 is installed on the inlet line of the consumer is a kind of current sensor (CT) to sense the current flowing to the load side. The detected load current is input to the digital meter 24 including the A / D changer, and the amount of power per unit time is converted into a digital value, and then stored in the memory 26. Stored in memory.

This accumulated stored power value is displayed via the display 23.

The program memory 22 determines the load current sensing, storage, display, and the collection of the sensing cycle and the sensing-related peripheral information by the CPU 21 described above.

In particular, the memory 26 stores premium information related to the peak time of power usage and (update) information such as sensing conditions and premium rates downloaded from the center computer side of the power management system through the wireless call network.

The CPU 21 in the digital metering system 20 enters the memory 26 when there is a remote metering request from the power center computer 41 side of the power management system 40 or when the automatic meter reading time is reached according to a predetermined program. Aggregate system 44 in the power management system 40 through the wireless call service system 30 composed of the wireless pager 31 and the wireless call center computer 32 to store the integrated power meter reading information or integrated power meter reading information. To send.

In particular, the remote metering mode can be divided into real-time remote metering mode or integrated power remote metering mode per unit time to perform remote metering by the required conditions, the power consumption metering information of the consumer side is carried on the carrier frequency of the pager 31 wireless It is transmitted to the call center computer 32 side.

In the counting system 44 which collects the remotely read customer power consumption through the wireless call network, the power meter reading information uploaded from each customer is sent to the power center computer 41 to be processed and processed therein for each customer. Stored by the customer DB (42).

The customer DB 42 stores time-based power usage information for the total power used by each customer, and in the power bill collection system 43, the amount of power used in the peak time zone according to this time-based power usage information table is included. For this purpose, an optional surcharge is settled to charge and collect electricity charges for each customer.

Information related to power consumption metering by customer can be managed by hourly table information. To this end, when the real-time remote metering information for each customer is input to the power center computer 41 side of the power management system 40 through the counting system 44, the real-time information is accepted and the metering time and the metering amount are taken into account. In step 42, a meter reading address is assigned and stored sequentially, thereby generating a power consumption table for each time slot.

On the contrary, in the digital metering system 20 installed for each customer, the metering information and the metering time information are stored in the memory 26 for a predetermined amount of time, and if there is a transmission request from the center, the power management system 40 By uploading to the center computer 41 of the stored in the customer database 42, it is possible to generate a power usage value table for each time zone.

The following describes a real-time load detection and differential charging method using a wireless pager of the present invention.

As mentioned earlier, the power reserve management level on the power supply side is determined by the peak power consumption, and the level down of the peak power consumption shows that the power supply efficiency can be maximized without the addition of power generation equipment.

Therefore, the efficient management of peak power may be rational management based on the principle of beneficiary burden through the introduction of a premium, and such differential charging may lead to interest and response of each customer.

3 is a flowchart illustrating a real-time remote load detection and differential charging method according to the present invention. As referred to herein, the first step is to upload the power consumption information per unit time detected by the digital meter in the digital metering system to the center computer side of the power management system for the wireless pager coupled to the digital metering system of each consumer. Require.

In addition, the electric power amount information per unit time may be accumulated and stored by real-time meter reading in the digital metering system, and the accumulated amount of electric power amount information for a predetermined period may be collectively uploaded from the center computer side.

If the center computer side of the power management system wants to upload the power usage information for a certain period of time stored in the digital metering system, it can be specified by uploading the minimum usage time of the wireless call communication line, thereby avoiding the congestion of the wireless call network. .

In the second step, the center computer receives power consumption information per unit time for each customer through the aggregation system. In the case of meter reading instead of real time meter reading, power consumption information for each set period is received.

In the third step, the received power consumption information per unit time for each customer, that is, real-time power usage information or power usage information for each time period of a certain period of time, is stored for each customer ID account in the customer DB.

In the fourth step, the electricity bill collection system of the electric power management system selectively applies a premium rate for power usage by premium time period and a discount rate for power usage by discount time period among total power usage information. Settle and collect the fee.

At this time, the premium rate can be graphically represented in the form of a graph during the period specified on the power bill, and presented through the power bill.

Particularly, in the case of a customer who has signed a premium contract power in the unit of the consumer unit, in applying the premium time band, if the amount is less than the premium contract power, the standard fee is applied even if the power consumption is used in the premium time period, and the premium is only applied to the use over the contract power. do.

For example, if a premium contract power amount is set to 3KW / h at a certain customer, even if the power usage during the peak time (extra time) does not exceed 3KW / h, the electricity rate is calculated by applying the standard rate. For example, if the power usage during peak hours exceeds 3 KW / h, a surcharge will be charged only for the portion of power used during the time exceeding 3 KW / h.

In addition, even if the power consumption exceeds 3KW / h in the time zone other than the extra time zone, the standard charge will be applied for the power consumption.

4 is a flowchart illustrating an operation process of a digital metering system applied to the present invention. First, the digital metering system reads real-time power consumption of a corresponding customer through a digital meter to obtain power consumption information per unit time.

Next, the current time is checked to determine whether the metering time corresponds to a discount rate, a premium, or a standard rate condition that is determined by the peak time period and the late night time period, etc. stored in the memory.

For reference, FIG. 6 shows an exemplary graph in which power usage fees are differentiated according to time slots.

Here, when the meter reading time is the standard fee application time, the amount of power consumption information is accumulated and stored in memory without additional charge weight for the metered power consumption.

If the meter reading time is a peak time period, a premium weight is given to the metered power consumption, and the premium power calculated at this time is accumulated and stored in the memory.

If the meter reading time is a discount rate application time such as a late night time period, the discount rate is applied to the power consumption at that time, and it is accumulated in memory.

On the contrary, instead of accumulating and saving the electricity consumption by time and discount rate, the electricity usage table is generated by sequentially storing the electricity usage information by time zone, and the table information is transmitted to the center computer as it is. The final settlement process can be operated.

On the other hand, the power consumption information for each consumer processed in this way is displayed through a display added to each digital meter. This allows the consumer to check his power consumption. In addition, a mode selection switch for function selection may be provided in the CPU of the digital metering system, and the power consumption pattern of the corresponding customer may be displayed in units of time, daily unit, weekly unit, and monthly unit by operating the mode selection switch. have.

Accumulated information in the memory that aggregates the amount of power used per unit time is uploaded to the center computer using the wireless call service network described above when there is a request for remote meter reading from the center computer of the power management system. Repeat the metering and integration process per unit time until the next remote metering request.

The digital metering system simply performs a meter reading of the electricity consumption per unit time of the corresponding customer, and transmits the meter reading result to the center's counting system, and the total electricity consumption of the corresponding customer for a predetermined period of time is accumulated by each customer ID in the center's customer DB. Can manage

In this case, the remote meter reading system installed on the customer side can delete the memory for storing data and the CPU for processing.

5 is a flowchart illustrating the operation of another embodiment of a digital meter reading system to which the present invention is applied.

As referred to here, after reading the real-time power consumption of the customer by the digital metering system to obtain the power consumption information per unit time, the current time is checked to check the peak time zone and the midnight zone, etc. Determining whether the discount, surcharge, or standard rate conditions apply to the applicable rate system.

In this case, when the meter reading time is within the standard fee application time period, the standard fee is applied as it is without weight to the metered power consumption, and the power consumption information is accumulated and stored in the memory.

If the meter reading time is a discount rate application time such as a late night time period, the discount rate is applied to the power consumption at that time, and it is accumulated in the memory.

If the meter reading time is the peak time period, it is determined whether the metered power usage exceeds the contracted power amount contracted by the customer.

As a result of judging whether the contract usage is exceeded, if the current meter reading power usage exceeds the contract usage, a premium is applied to the power usage per unit time and the calculated value is accumulated and stored in the memory.

7 illustrates a power peak time premium section under a customer contract power setting condition.

Here, as in the flow of FIG. 5, instead of accumulating and applying the discount and the premium rate to the power consumption by time zone, the power usage information is sequentially stored by time zone to generate a power usage table, and the table information is used as it is. Can be sent to the center computer for final settlement.

If there is a request for remote meter reading from the center computer side, the information in the memory that has accumulated power usage per unit time is uploaded to the center computer side using the wireless pager network described above. Repeat the meter reading per unit time until it repeats.

The digital metering system simply performs a real-time reading of the electricity consumption per unit time of the corresponding customer and transmits the real-time metering result to the aggregation system of the center, and the total power consumption of the corresponding customer for a certain period of time is shown in the customer database of the center. You can manage by ID.

In this case, the remote meter reading system installed on the customer side can delete the memory for data storage and the CPU for arithmetic processing, thereby reducing the cost.

As described above, the present invention can reduce the power reserve management burden at the power supply side by combining the wireless pager based remote metering technology and the power consumption distribution policy, thereby reducing the cost of power plant construction due to the lack of power reserve.

In addition, the present invention has the effect of increasing the utilization of national resources by efficiently using the radio calling system that is already being specified.

In addition, the present invention by applying a real-time meter to the power consumption of the customer can be accurately applied to the premium for power consumption in a specific time period.

In addition, the present invention allows the power receiver to enter into a maximum power use contract with the power provider side and based on this, by applying a progressive surcharge for power use in a specific time period, the consumer side can suppress the power use at the specific time period as much as possible. To effect.

Claims (12)

The digital meter system 20 which is installed for each electric power customer to detect power consumption for each customer in real time and converts the detected electric power into a digital value, and the customer DB for integrating and storing real-time power consumption for each customer by customer ID (42) ) And the remote meter reading information uploaded from each customer's digital detection system and the power rate collection system 43 which charges and collects the power rate for each customer by applying a premium rate for each time period to the accumulated power value of the customer DB. A power management system 40 including a power center computer 41 linked to an aggregation system 44 for performing an aggregation process, and installed between the digital detection system and the power management system for bidirectional wireless communication of information related to real-time remote meter reading. It includes a wireless call service system 30 composed of a wireless pager 31 and a wireless call center computer 32 that support communication. Real-time load detection and differential billing system using a radio pager characterized in that. 2. The digital meter reading system (20) has a CPU (21) therein, and the CPU (21) stores a wireless pager (31) and a metering power reading result for connection with a wireless call service system. And a memory 26 for storing and integrating the program, a program memory 22 for storing the operating program of the meter reading system, a display 23 for indicating the accumulated power amount, and a digital meter 24 for measuring the load side power consumption amount as a digital value. The real-time load detection and differential charging system using the wireless pager, characterized in that the digital meter is connected to the meter reading sensor 25 is installed in the customer incoming line. Transmitting real-time power consumption information per unit time detected by the digital meter in the digital metering system of the power receiver on the carrier frequency of the wireless pager and transmitting it to the aggregation system side of the power management system through the wireless call service network; Classifying the real-time power consumption per unit time remote meter reading information for each customer aggregated by the customer ID and storing the information and the accumulated power amount in the customer DB; Using the wireless pager to charge and collect the total power bill by reading the remote metering information for each customer ID accumulated in the consumer DB and selectively applying a premium rate only for the peak time meter reading Real time load detection and differential charging method. The digital metering system of claim 3, wherein the digital meter reading system of the power receiving party stores the real-time power consumption information detected by the digital meter in its own memory and wirelessly reads the meter reading information stored in the memory at a time determined by the system program. A real-time load detection and differential charging method using a wireless pager, characterized in that it is carried on the carrier frequency of the pager to be transmitted to the aggregation system through the wireless call service network. 4. The digital metering system of the power receiving party stores the real-time power consumption information detected by the digital meter in its own memory, and requests remote transmission of the metering information from the center computer side of the power management system. The real-time load detection and differential charging method using a wireless pager, characterized in that if there is a signal to read the meter information stored in the memory on the carrier frequency of the wireless pager via the wireless call service network. [4] The real-time load detection and differential charging using the wireless pager according to claim 3, wherein the remote meter reading information for each user transmitted to the aggregation system is power usage table information in which meter reading information for each meter reading time is sequentially recorded in units of meter reading addresses. Way. [4] The method of claim 3, wherein the remote meter reading information for each customer transmitted to the counting system is integrated meter reading information, in which a premium rate per unit detection power for each peak time is selectively applied in advance in the digital meter reading system of the consumer. Real-time load detection and differential charging method using a pager. According to claim 3, wherein the power consumption information stored in the customer DB for each customer ID is integrated integrated information by applying a premium per unit detection power for each peak time selectively in advance in the center computer of the power management system Real-time load detection and differential charging method using a pager. Transmitting the real-time power consumption information detected by the digital meter of the digital detection system of the power receiver on the carrier frequency of the wireless pager and transmitting it to the aggregation system side of the power management system through the wireless call service network; Classifying the real-time power consumption per unit time remote meter reading information for each customer aggregated by the customer ID and storing the information and the accumulated power in the table information state in the customer DB; Reading the remote reading table information for each customer ID accumulated in the customer DB, classifying the peak time reading minutes, and selectively charging and collecting the total power rate by selectively applying a premium rate to the peak time minutes. Real-time load detection and differential charging method using a wireless pager, characterized in that. 10. The method of claim 9, wherein the digital meter reading system comprises a memory and a CPU for calculating and processing real-time power consumption meter reading information and storing the meter reading information. Contracting an arbitrary amount of power used by the power receiving party to the power supply side so as to apply a premium rate when the contracted power amount is exceeded in the peak time period (the extra time period); Transmitting real-time power consumption information per unit time detected by the digital meter in the digital metering system of the power receiver on the carrier frequency of the wireless pager and transmitting it to the aggregation system side of the power management system through the wireless call service network; Classifying real-time power consumption per unit time remote meter reading information for each customer aggregated by the customer ID and storing the information and the accumulated power amount in the customer DB; Read the remote metering information for each customer ID accumulated in the consumer DB and apply the premium rate only to the metering point exceeding the contracted power in the premium peak time interval to settle and collect the total power rate. Real-time load detection and differential charging method using a wireless pager comprising a. 12. The method of claim 11, wherein the digital meter reading system comprises a memory and a CPU for calculating and processing real-time power consumption meter reading information and storing the meter reading information.