KR20210026318A - Server, method and computer program for synchronizing time between measuring device and electricity meter - Google Patents

Abstract

Provided is a server, which synchronizes the time between a measuring device for measuring a pulse signal for meter reading data of a power meter and the power meter, which comprises: a reception unit for receiving metering data including a pulse signal and the data generation time corresponding to the pulse signal from the measuring device; a calculation unit for calculating a time difference between the data generation time and the data reception time at which the metering data is received; a determination unit for classifying the calculated time difference into any one of preset time synchronization sections, and determining whether an abnormal event occurs for the power meter based on the classified section; and a time synchronization unit for synchronizing the time between the measuring device and the power meter based on whether the abnormal event occurs.

Description

Server, method and computer program for synchronizing the time between the measuring device and the power meter {SERVER, METHOD AND COMPUTER PROGRAM FOR SYNCHRONIZING TIME BETWEEN MEASURING DEVICE AND ELECTRICITY METER}

The present invention relates to a server, method and computer program for synchronizing time between a measuring device and a power meter.

A power meter is a device that measures the amount of power consumed, and refers to an meter that displays the amount of power used by adding time to the product of the product of the supply voltage and current. Conventionally, an induction-type watt-hour meter has been used, but in recent years, in order to implement an intelligent power grid (smart grid), the spread of electronic watt-hour meters (smart meters) capable of metering by time and two-way communication is gradually expanding.

Intelligent Metering Infrastructure (AMI) refers to a system that enables real-time power usage monitoring in a central control room and remote control of power usage. Power companies can acquire real-time metering information of all customers through an intelligent meter reading infrastructure, and efficiently control power demand based on the data.

With respect to such an intelligent meter reading infrastructure, Korean Patent Publication No. 2014-0106067, which is a prior art, discloses a power meter reading system.

In the intelligent meter reading infrastructure, the measuring device communicates with the power meter to obtain metering data, and transmits it to the server using wireless communication such as LTE (Long Term Evolution), 3G, WiSUN, Zigbee, and Wi-Fi.

The server may perform remote meter reading by receiving metering data measured by each power meter through a measurement device. However, due to the time difference between the power meter and the server, system load due to dump transmission, terminal maintenance policy, and intermittent errors in the system, metering data is often omitted, making remote meter reading difficult. there was.

A time synchronization server, method, and computer program that receives metering data including the data occurrence time, calculates the time difference between the data generation time and the data reception time at which the metering data is received, and determines whether an abnormal event has occurred for the power meter. I want to provide.

An object of the present invention is to provide a time synchronization server, a method, and a computer program for synchronizing the time between a measuring device and a power meter when an abnormal event occurs for a power meter.

However, the technical problem to be achieved by the present embodiment is not limited to the technical problems as described above, and other technical problems may exist.

As a means for achieving the above-described technical problem, an embodiment of the present invention provides a receiving unit for receiving metering data including the pulse signal and data generation time corresponding to the pulse signal from a measuring device, the data generation time, and A calculation unit that calculates a time difference between data reception times when the metering data is received, classifies the calculated time difference into any one of preset time synchronization periods, and an abnormal event for the power meter based on the classified period It is possible to provide a server including a determination unit that determines whether or not a time synchronization unit is configured to synchronize a time between the measurement device and the power meter based on the occurrence of the abnormal event.

In another embodiment of the present invention, the step of receiving metering data including the pulse signal and a data generation time corresponding to the pulse signal from a measurement device, a time difference between the data generation time and the data reception time at which the metering data is received Calculating, classifying the calculated time difference into any one of preset time synchronization periods, determining whether an abnormal event occurs for the power meter based on the classified period, and the abnormal event It is possible to provide a time synchronization method including the step of synchronizing a time between the measuring device and the power meter based on whether or not is generated.

In another embodiment of the present invention, when a computer program is executed by a computing device, the computer program receives metering data including the pulse signal and a data generation time corresponding to the pulse signal from a measurement device, and the data generation time and the Calculate the time difference between the data reception time when the metering data is received, classify the calculated time difference into any one of preset time synchronization periods, and whether an abnormal event for the power meter occurs based on the classified period It is possible to provide a computer program stored in a medium including a sequence of instructions for determining the value and synchronizing the time between the measuring device and the power meter based on whether the abnormal event has occurred.

The above-described problem solving means are merely exemplary and should not be construed as limiting the present invention. In addition to the above-described exemplary embodiments, there may be additional embodiments described in the drawings and detailed description of the invention.

According to any one of the above-described problem solving means of the present invention, the metering data including the data generation time corresponding to the pulse signal is received from the measurement device, and the time difference between the data generation time and the data reception time at which the metering data is received is calculated. Thus, it is possible to provide a time synchronization server, a method, and a computer program for determining whether an abnormal event occurs in the power meter.

The time difference calculated between the data generation time corresponding to the pulse signal and the data reception time when the metering data is received is classified into any one of a normal period, a correction period, and an abnormal period among the preset time synchronization periods, and a power meter based on the classified period. It is possible to provide a time synchronization server, a method, and a computer program for determining whether or not an abnormal event has occurred.

When the time difference is classified as a correction section among the time synchronization sections, the time synchronization section is reset by correcting the threshold time set in the correction section, so that metering data is transmitted based on individual times for each business site based on the reset time synchronization section. A time synchronization server, method, and computer program can be provided.

A time synchronization server, method, and computer program that detects a defective power meter and checks or replaces the detected defective power meter based on the analysis status and occurrence of abnormal events by analyzing the metering data received for a predetermined period. Can provide.

It is possible to provide a time synchronization server, a method, and a computer program capable of improving the quality of service by proactively responding to damage factors that may be incurred for water charges and incentives due to a time difference.

1 is a block diagram of a time synchronization system according to an embodiment of the present invention.
2 is a block diagram of a time synchronization server according to an embodiment of the present invention.
3 is an exemplary diagram for explaining a process of calculating a time difference between a data generation time and a data reception time according to an embodiment of the present invention.
4 is an exemplary diagram illustrating a time synchronization period according to an embodiment of the present invention.
5 is an exemplary diagram for explaining a process of determining whether an abnormal event occurs in a power meter according to an embodiment of the present invention.
6 is an exemplary diagram for explaining a process of detecting whether a power meter is defective based on an analysis status analyzed for metering data for a predetermined period and whether an abnormal event occurs according to an embodiment of the present invention.
7 is a flowchart illustrating a method of synchronizing time between a power meter and a measurement device measuring a pulse signal for meter reading data of a power meter in a time synchronization server according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected" with another part, this includes not only "directly connected" but also "electrically connected" with another element interposed therebetween. . In addition, when a part "includes" a certain component, it means that other components may be further included, and one or more other features, not excluding other components, unless specifically stated to the contrary. It is to be understood that it does not preclude the presence or addition of any number, step, action, component, part, or combination thereof.

In the present specification, the term "unit" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. Further, one unit may be realized by using two or more hardware, or two or more units may be realized by one piece of hardware.

In this specification, some of the operations or functions described as being performed by the terminal or device may be performed instead in a server connected to the terminal or device. Likewise, some of the operations or functions described as being performed by the server may also be performed by a terminal or device connected to the server.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a time synchronization system according to an embodiment of the present invention. Referring to FIG. 1, the time synchronization system 1 may include a measurement device 110 installed for each power meter 100, a time synchronization server 120, and a manager terminal 130. The power meter 100, the measuring device 110, the time synchronization server 120, and the manager terminal 130 exemplarily show components that can be controlled by the time synchronization system 1.

Each component of the time synchronization system 1 of FIG. 1 is generally connected through a network. For example, as shown in FIG. 1, the time synchronization server 120 may be connected to the measurement device 110 or the manager terminal 130 at a time interval at the same time.

A network refers to a connection structure that enables information exchange between nodes such as terminals and servers, and is a local area network (LAN), a wide area network (WAN), and the Internet (WWW: World). Wide Web), wired and wireless data communication networks, telephone networks, wired and wireless television networks, etc. Examples of wireless data networks include 3G, 4G, 5G, 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), WIMAX (World Interoperability for Microwave Access), Wi-Fi, Bluetooth communication, infrared communication, and ultrasound. Communication, Visible Light Communication (VLC), LiFi, and the like are included, but are not limited thereto.

The power meter 100 is installed on the side of a household or industrial customer, and may perform a meter reading on electricity, gas, water supply, temperature, heat quantity, etc. used by the customer. The power meter 100 may be operated by the power company's first platform.

The measurement device 110 measures a pulse signal for meter reading data from the electronic power meter 100, and transmits metering data including the measured pulse signal and data generation time corresponding to the pulse signal to the time synchronization server 120 I can. The measurement device 110 may be operated by a second platform by an operating entity different from the power company.

Here, it is expected that the time of the power meter 100 and the measuring device 110 is synchronized so that the time relations coincide in the time domain.

To this end, the measurement device 110 transmits the data generation time corresponding to the pulse signal generated based on the synchronized time to the time synchronization server 120, so that whether the time of the power meter 100 is shifted is determined by the time synchronization server 120. ).

The time synchronization server 120 may receive a pulse signal and metering data including a data generation time corresponding to the pulse signal from the measurement device 110.

The time synchronization server 120 may calculate a time difference between the data generation time and the data reception time at which the metering data is received. The time synchronization server 120 may classify the calculated time difference into any one of the preset time synchronization periods, and determine whether an abnormal event occurs in the power meter 100 based on the classified period. Here, the preset time synchronization section may include a normal section, a correction section, and an abnormal section.

The time synchronization server 120 may synchronize the time between the measurement device 110 and the power meter 100 based on whether an abnormal event occurs. For example, when the time difference corresponds to the correction section, the time synchronization server 120 may correct a threshold time set in the correction section and reset a preset time synchronization section based on the corrected threshold time. Here, the correction section may include at least one detailed correction section. The time synchronization server 120 may perform different corrections for the critical time based on the detailed correction section corresponding to the time difference.

The time synchronization server 120 may calculate a time difference between the data reception time and the data generation time of the metering data received after the time synchronization period is reset. For example, the time synchronization server 120 may classify into any one of the reset time synchronization sections based on the calculated time difference.

When the time difference corresponds to an abnormal section, the time synchronization server 120 may transmit a time error event message for the power meter 100 to the manager terminal 130.

The time synchronization server 120 may detect whether the power meter 100 is defective based on the analysis status analyzed for the metering data received for a predetermined period and whether an abnormal event has occurred.

The manager terminal 130 may receive a time error event message for the power meter 100 from the time synchronization server 120. The manager terminal 130 may cause the power meter 100 to be inspected or replaced by an administrator based on the received visual error event message.

The time synchronization server 120 is a computer program stored in a medium including a sequence of instructions for synchronizing the time between the power meter 100 and the measuring device 110 measuring a pulse signal for the meter reading data of the power meter 100 Can be implemented by

When the computer program is executed by a computing device, the measurement device 110 receives metering data including a pulse signal and a data generation time corresponding to the pulse signal, and the time difference between the data generation time and the data reception time at which the metering data is received. Is calculated, classifies the calculated time difference into any one of the preset time synchronization periods, determines whether an abnormal event has occurred for the power meter based on the classified period, and measures based on whether an abnormal event has occurred. It may include a sequence of instructions to synchronize the time of the device and the power meter.

2 is a block diagram of a time synchronization server according to an embodiment of the present invention. 2, the time synchronization server 120 includes a reception unit 210, a calculation unit 220, a determination unit 230, a time synchronization unit 240, a message transmission unit 250, and a failure detection unit 260. Can include.

The receiver 210 may receive a pulse signal and metering data including a data generation time corresponding to the pulse signal from the measurement device 110. For example, the receiving unit 210 may receive metering data from the measurement device 110 at every predetermined period (eg, 5 minutes). Here, the data generation time is generated by the power meter 100 that is temporally synchronized with the measurement device 110 and may be the time of the power meter 100 when the corresponding data is generated.

The power meter 100 and the measuring device 110 may be synchronized in advance, and it is required that their time synchronization be maintained.

However, when the data generation time is shifted due to the deterioration of the quality of the power meter 100, the time is shifted with the time-synchronized measurement device 110 and the time synchronization server 120.

The calculator 220 may calculate a time difference between the data generation time and the data reception time at which the metering data is received. A process of calculating the time difference between the data generation time and the data reception time will be described in detail with reference to FIG. 3.

3 is an exemplary diagram for explaining a process of calculating a time difference between a data generation time and a data reception time according to an embodiment of the present invention. Referring to FIG. 3, the receiving unit 210 receives metering data including the data generation time from the measurement device 110 at a predetermined period (eg, 5 minutes), and the calculation unit 220 is configured for each receiving section. A time difference between the data generation time and the data reception time may be calculated based on the abnormal event check time set for each. Here, it is assumed that the data generation time is that the time of the time synchronization server 120 and the power meter 100 are synchronized, and is generated on the basis of 5 minutes from 00:00.

For example, the calculation unit 220 calculates the time difference between the data generation time and the data reception time at 00:04, which is a preset abnormal event check time 310 for the first section T1, 00:00 to 00:05. Can be calculated. For example, when the receiving unit 210 receives the A metering data 300 at '00:00', the calculation unit 220 determines that the data generation time 310 is '00:00' in the first section T1. ', so the time difference can be calculated as '00:00'.

For another example, the calculation unit 220 is the time difference between the data generation time and the data reception time at 00:09, which is a preset abnormal event check time 311 for the second section (T2, 00:05 to 00:10). Can be calculated. For example, if the receiving unit 210 does not receive the A metering data 302 corresponding to the second period T2 at 00:05 (301) and receives it at 00:10, the calculation unit 220 Since the data generation time in section 2 T2 is '00:05', the time difference can be calculated as '00:05'.

Returning to FIG. 1 again, the determination unit 230 classifies the calculated time difference into any one of the preset time synchronization periods, and determines whether an abnormal event occurs in the power meter 100 based on the classified period. can do. Here, the abnormal event is to check whether the metering data is well received at a predetermined period (e.g., 5 minutes), and the reception of the metering data is performed in one period (e.g., 5 minutes) at the specified data generation time. ), an abnormal event may occur. Such an abnormal event may be caused by a time difference between the terminal and the server, a system load due to dump transmission, a terminal maintenance policy, an intermittent error of a data request command, and the like.

The time synchronization unit 240 may synchronize the time between the measurement device 110 and the power meter 100 based on whether an abnormal event occurs. A process of synchronizing the time between the measurement device 110 and the power meter 100 based on whether an abnormal event has occurred in the power meter 100 will be described in detail with reference to FIGS. 4 and 5.

4 is an exemplary diagram showing a preset time synchronization period according to an embodiment of the present invention. The preset time synchronization section uses a MDMS (Maintenance Data Management System) table for a set time (e.g., 06:20) once a day, for a total of 12 times every 5 minutes from 05:00 to 06:00. It may be generated based on an average of 10 pieces of data excluding min/max among codes. In this case, when the maximum value (max) and the minimum value (min) are two or more, each of the maximum value and the minimum value is generated by excluding one, and only when there are 10 or more of the 12 time codes can be calculated.

The MDMS table, which is a result storage table, may include, for example, meter_id, tgt_date, time_sync_cd, mn5_time_cd_count, max_value, min_value, avg_value, del_yn, cretr_id, cret_dt, admr_id, amd_dt, and the like. Here, merter_id may be the id of the power meter, and tgt_date: may be the target date (YYYYMMDD).

In addition, in'time_sync_cd', A (Abnormal) is an abnormal section, N (Normal) is a normal section, C1 (Correction 1) detailed correction section, C2 (Correction 2) detailed correction section, C3 (Correction 3) detailed correction section It can be composed of.

'mn5_time_cd_count' represents the number of T codes between 5 and 6 o'clock (12 in case of normal), max_value is the maximum value of'metering reception time-data generation time', and min_value is'metering reception time-data generation time' Is the minimum value, and avg_value may be an average value of'metering reception time-data generation time'.

Del_yn indicates whether to be deleted, cretr_id indicates the initial creator id, cret_dt indicates the first creation date, amdr_id indicates the modification creator ID, and amd_dt indicates the modification creation date and time. Here, the primary key (PK) of the MDMS table may be'meter_id' and'tgt_date'.

Referring to FIG. 4, the preset time synchronization section 400 may include abnormal sections A and 401, normal sections B and 402, and correction sections 403 to 405 and C1 to C3. An example of the critical time 410 for each section is as follows.

The abnormal periods A and 401 may be set as the critical time 410 is 6 minutes or more early or 6 minutes or more slow.

In the normal section (B, 402), the threshold time 410 may be set to be faster than 6 minutes and slower within 3 minutes.

The correction sections 403 to 405 and C1 to C3 may include at least one detailed correction section. For example, the first detailed correction period (C1, 403) is set as the critical time 410 is slower than 3 minutes to less than 4 minutes, and the second detailed correction period (C2, 404) is the critical time (410) This is set to be slower than 4 minutes to slower within 5 minutes, and the third detailed correction section C3 and 405 may be set as the critical time 410 is slower than 5 minutes to slower within 6 minutes.

The determination unit 230 may classify the calculated time difference into any one of the preset time synchronization intervals, and determine whether an abnormal event occurs in the power meter 100 based on the classified interval.

For example, when the time difference corresponds to the abnormal periods A and 401, the message transmission unit 250 may transmit a visual error event message for the power meter 100 to the manager terminal 130.

For another example, when the time difference corresponds to the normal section (B, 402) and the correction section (403 to 405, C1 to C3), the determination unit 230 is periodically (for example, 5 minutes) as before. It may be determined whether an abnormal event occurs in the power meter 100.

When the time difference corresponds to the correction section (403 to 405, C1 to C3), the determination unit 230 corrects the threshold time set in the correction section (403 to 405, C1 to C3) (420), and the corrected threshold time A preset time synchronization section may be reset based on.

In this case, the determination unit 230 may perform different corrections for the critical time based on the detailed correction section corresponding to the time difference. For example, when the time difference corresponds to the first detailed correction section (C1, 403), the determination unit 230 corrects the threshold time set in the first detailed correction section (C1, 403) to'+1' minutes. , Reset to slower than 4 minutes to slower within 5 minutes, and if the time difference falls within the second detailed correction section (C2, 404), the threshold time set in the second detailed correction section (C2, 404) is set to'+2' It is corrected in minutes, reset to slower than 6 minutes to slower within 7 minutes, and if the time difference falls within the third detailed correction section (C3, 405), the threshold time set in the third detailed correction section (C3, 405) is set. By calibrating to'+3 minutes', it can be reset to slower than 8 minutes to slower within 9 minutes.

Through this, when the metering data is received late, the threshold time set in the corresponding power meter 100 is corrected based on the data generation time included in the metering data, so that the metering data has an individual time so that it is normally received. have. In addition, it is possible to flexibly determine an abnormal event by performing correction in consideration of the time difference for each terminal such as the power meter 100 and the measurement device 110.

The calculation unit 220 calculates a time difference between the data reception time and the data generation time of the metering data received after the time synchronization period is reset, and the determination unit 230 is among the time synchronization periods reset based on the calculated time difference. It can be classified into any one section.

The failure detection unit 260 may detect whether the power meter 100 is defective based on the analysis status analyzed for the metering data received for a predetermined period and whether an abnormal event has occurred.

5 is an exemplary diagram for explaining a process of determining whether an abnormal event occurs in a power meter according to an embodiment of the present invention. 5, the times are synchronized between the plurality of power meters 100 and the time synchronization server 120, so that the data generation times of the plurality of power meters 100 are 00:00:00 (520), 00:05. Suppose that synchronization is performed every 5 minutes, such as :00(521), 00:10:00(522), and 00:15:00(523). At this time, the abnormal event check time may be set at 5-minute intervals such as '00:04' in the first section, '00:09' in the second section, and '00:14' in the third section. At the event check time, a time difference between the data generation time and the metering data reception time may be calculated for each section.

In the case of the first section (00:00:00 to 00:05:00), the time synchronization server 120 receives the A metering data 500 from the A measurement device that measures the pulse signal for the meter reading data of the A power meter. The B metering data 510 may be received at 00:00:00 from the B measurement device that is received at 00:04:20 and measures a pulse signal for the meter reading data of the B power meter. In this case, the data generation time may be synchronized between the power meter A, the power meter B, and the time synchronization server 120 at 00:00:00.

The time synchronization server 120 calculates a time difference between the data generation time and the data reception time at which the metering data is received, classifies the calculated time difference into any one of preset time synchronization periods, and a power meter based on the classified period. It is possible to determine whether or not an abnormal event has occurred.

For example, since the time difference between the reception time (00:00:00) and the data generation time (00:00:00) of the B metering data 510 is '0', the B metering data ( 510) may be determined to correspond to the normal section.

As another example, the time synchronization server 120 has a time difference between the reception time (00:04:20) of the A metering data 500 and the data generation time (00:00:00), so that the time difference is about 00:04:20, It is determined that the A metering data 500 corresponds to the correction period, and based on the A metering data 500, it may be determined that an abnormal event for the A power meter has occurred.

In the case of the second section (00:05:00 to 00:10:00), the time synchronization server 120 receives the A metering data 500 from the A measurement device that measures the pulse signal for the meter reading data of the A power meter. The B metering data 510 may be received at 00:05:00 from the B measurement device, which is received at 00:09:20 and measures a pulse signal for the meter reading data of the B power meter.

The time synchronization server 120 calculates a time difference between the data generation time and the data reception time at which the metering data is received, classifies the calculated time difference into any one of the preset time synchronization periods, and provides power based on the classified period. It is possible to determine whether an abnormal event has occurred on the meter.

For example, the time synchronization server 120 has a time difference between the reception time (00:05:00) of the B metering data 510 and the data generation time (00:05:00), so that the B metering data 510 Can be determined to correspond to the normal section.

As another example, the time synchronization server 120 has a time difference between the reception time (00:09:20) of the A metering data 500 and the data generation time (00:05:00), so that the time difference is about 00:04:20, It is determined that the A metering data 500 corresponds to the correction period, and based on the A metering data 500, it may be determined that an abnormal event for the A power meter has occurred.

In the case of the third section (00:10:00 to 00:15:00), the time synchronization server 120 receives the A metering data 500 from the A measurement device that measures the pulse signal for the meter reading data of the A power meter. The B metering data 510 may be received at 00:10:00 from the B measurement device, which is received at 00:14:20 and measures a pulse signal for the meter reading data of the B power meter.

The time synchronization server 120 calculates a time difference between the data generation time and the data reception time at which the metering data is received, classifies the calculated time difference into any one of preset time synchronization periods, and a power meter based on the classified period. It is possible to determine whether or not an abnormal event has occurred.

For example, the time synchronization server 120 has a time difference between the reception time (00:10:00) of the B metering data 510 and the data generation time (00:10:00), so that the B metering data 510 Can be determined to correspond to the normal section.

As another example, the time synchronization server 120 has a time difference between the reception time (00:14:20) of the A metering data 500 and the data generation time (00:10:00), so that the time difference is about 00:04:00, It is determined that the A metering data 500 corresponds to the correction period, and based on the A metering data 500, it may be determined that an abnormal event for the A power meter has occurred.

The time synchronization server 120 may synchronize the time of the power meter A based on the reset time synchronization period by performing correction and resetting the threshold time for a preset time synchronization period of the power meter A. Through this, it is possible to have a separate perspective at the workplace where the power meter A belongs.

6 is an exemplary diagram for explaining a process of detecting whether a power meter is defective based on an analysis status analyzed for metering data for a predetermined period and whether an abnormal event occurs according to an embodiment of the present invention.

Referring to FIG. 6, the failure detection unit 260 analyzes the analysis status 610 and 620 of the metering data received for a predetermined period (eg, 1 day) and a predetermined period (eg, 5 minutes). It is possible to detect whether the power meter is defective based on whether or not an abnormal event determined as occurs.

According to an embodiment, it may be determined whether an event of 5 minutes or more occurs 630 based on a predetermined period (eg, 5 minutes). For example, if the time difference between the data generation time and the metering reception time falls within a slow period of more than 6 minutes and less than 3 minutes, it may be determined as the normal period 631.

For another example, the time difference between the data generation time and the metering reception time is'slower than 3 minutes-slower within 4 minutes','slower exceeding 4 minutes-slower within 5 minutes','slower than 5 minutes-slower within 6 minutes' If it corresponds to, the critical time of the section to which the time difference belongs may be corrected to become the normal section 632.

According to another embodiment, it may be determined whether or not the daily event 610 occurs at a specific time (eg, 2:10).

For example, the defect detection unit 260 is based on the collection status of the MDMS (Maintenance Data Management System) for 2 hours corresponding to 1 o'clock to 3 o'clock the previous day, the average of the metering data excluding the two sections corresponding to min/max. When the reception time corresponds to'faster than 6 minutes or slower than 6 minutes', the message transmission unit 250 may transmit a visual error event message including a'power meter time abnormality event' to the manager terminal 130. .

For another example, if the defect detection unit 260 corresponds to about 80% of the data of the previous day in the collection status of the MDMS (Maintenance Data Management System) for 2 hours corresponding to 1 o'clock to 3 o'clock the previous day,'measurement device date or more. A visual error event message including 'may be transmitted to the manager terminal 130.

According to another embodiment, it may be determined whether or not an event 620 occurs more than one day at a specific time (eg, 2:20).

For example, the defect detection unit 260 may transmit an error event message including'a terminal with multiple abnormalities collected the previous day' to the manager terminal 130 in the case of a workplace in which the abnormal event collected the previous day occurred three or more times.

For another example, the defect detection unit 260 may detect a defective terminal as a'long-time collection abnormal terminal' for a workplace in which the abnormal event is not canceled until the check time (2:10).

7 is a flowchart illustrating a method of synchronizing time between a power meter and a measurement device measuring a pulse signal for meter reading data of a power meter in a time synchronization server according to an embodiment of the present invention. A method of synchronizing time between a power meter and a measuring device measuring a pulse signal for meter reading data of a power meter in the time synchronization server 120 shown in FIG. 7 is time synchronization according to the embodiment shown in FIGS. 1 to 6. It includes steps that are processed in time series by the system 1. Therefore, even if omitted below, it is also applied to a method of synchronizing time between a power meter and a measurement device measuring a pulse signal for meter reading data in the time synchronization server 120 according to the embodiment shown in FIGS. 1 to 6. .

In step S710, the time synchronization server 120 may receive a pulse signal and metering data including a data generation time corresponding to the pulse signal from the measurement device 110.

In step S720, the time synchronization server 120 may calculate a time difference between the data generation time and the data reception time at which the metering data is received.

In step S730, the time synchronization server 120 may classify the calculated time difference into any one of preset time synchronization sections.

In step S740, the time synchronization server 120 may determine whether an abnormal event occurs in the power meter 100 based on the classified section.

In step S750, the time synchronization server 120 may synchronize the time between the measurement device 110 and the power meter 100 based on whether an abnormal event occurs.

In the above description, steps S710 to S750 may be further divided into additional steps or may be combined into fewer steps, according to an embodiment of the present invention. In addition, some steps may be omitted as necessary, and the order between steps may be switched.

A method of synchronizing the time between a power meter and a measuring device measuring a pulse signal for meter reading data in a time synchronization server through FIGS. 1 to 7 includes a computer program stored in a medium executed by a computer or a command executable by a computer. It may also be implemented in the form of an included recording medium. In addition, the method of synchronizing the time between the power meter and the measuring device measuring the pulse signal for the meter reading data in the time synchronization server through FIGS. 1 to 7 may be implemented in the form of a computer program stored in a medium executed by a computer. I can.

Computer-readable media can be any available media that can be accessed by a computer, and includes both volatile and nonvolatile media, removable and non-removable media. Further, the computer-readable medium may include a computer storage medium. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

100: power meter
110: measuring device
120: time synchronization server
130: administrator terminal
210: receiver
220: calculation unit
230: judgment unit
240: time synchronization unit
250: message transmission unit
260: defect detection unit

Claims (15)

A server for synchronizing time between the power meter and a measurement device for measuring a pulse signal for meter reading data of a power meter,
A receiving unit for receiving metering data including the pulse signal and data generation time corresponding to the pulse signal from the measuring device;
A calculation unit calculating a time difference between the data generation time and the data reception time at which the metering data is received;
A determination unit that classifies the calculated time difference into any one of preset time synchronization intervals, and determines whether an abnormal event occurs in the power meter based on the classified interval; And
Time synchronization unit for synchronizing the time between the measurement device and the power meter based on whether the abnormal event has occurred
That, the server comprising a.
The method of claim 1,
The preset time synchronization section includes at least one of a normal section, a correction section, and an abnormal section.
The method of claim 2,
When the time difference corresponds to the correction section, the determination unit corrects a threshold time set in the correction section, and resets the preset time synchronization section based on the corrected threshold time.
The method of claim 3,
The calculation unit calculates a time difference between a data reception time and the data generation time of the metering data received after the time synchronization period is reset,
The determining unit classifies the metering data into any one of the reset time synchronization intervals based on the calculated time difference.
The method of claim 3,
The correction section includes at least one detailed correction section,
The server, wherein the determination unit performs different corrections for the threshold time based on a detailed correction section corresponding to the time difference.
The method of claim 3,
When the time difference corresponds to the abnormal section, the server further comprising a message transmission unit for transmitting a time error event message for the power meter to the manager terminal.
The method of claim 1,
The server further comprising a failure detection unit configured to detect whether the power meter is defective based on the analysis status analyzed for the metering data received for a predetermined period and whether the abnormal event has occurred.
A method of synchronizing time between the power meter and a measuring device for measuring a pulse signal for meter reading data of a power meter in a server,
Receiving metering data including the pulse signal and data generation time corresponding to the pulse signal from the measuring device;
Calculating a time difference between the data generation time and the data reception time at which the metering data is received;
Classifying the calculated time difference into any one of preset time synchronization periods;
Determining whether an abnormal event has occurred in the power meter based on the classified section; And
And synchronizing a time between the measuring device and the power meter based on whether the abnormal event has occurred.
The method of claim 8,
The preset time synchronization section includes at least one of a normal section, a correction section, and an abnormal section.
The method of claim 9,
The step of determining whether the abnormal event has occurred,
When the time difference corresponds to the correction section, correcting a threshold time set in the correction section; And
And resetting the preset time synchronization section based on the corrected threshold time.
The method of claim 9,
Calculating a time difference between a data reception time and the data generation time of the metering data received after the time synchronization period is reset; And
And classifying the metering data into any one of the reset time synchronization intervals based on the calculated time difference.
The method of claim 10,
The correction section includes at least one detailed correction section,
The step of determining whether the abnormal event has occurred,
The time synchronization method further comprising performing a different correction for the critical time based on the detailed correction section corresponding to the time difference.
The method of claim 10,
When the time difference corresponds to the abnormal period, transmitting a time error event message for the power meter to a manager terminal, time synchronization method.
The method of claim 8,
The time synchronization method further comprising the step of detecting whether the power meter is defective based on the analysis status analyzed for the metering data received for a predetermined period and whether the abnormal event has occurred.
A computer program stored in a medium comprising a sequence of instructions for synchronizing a time between a measuring device for measuring a pulse signal for meter reading data of a power meter and the power meter,
When the computer program is executed by a computing device,
Receive metering data including the pulse signal and data generation time corresponding to the pulse signal from the measuring device,
Calculate a time difference between the data generation time and the data reception time at which the metering data is received,
Classifying the calculated time difference into any one of a preset time synchronization period, and determining whether an abnormal event occurs for the power meter based on the classified period,
A computer program stored in a medium comprising a sequence of instructions for synchronizing a time between the measurement device and the power meter based on whether the abnormal event has occurred.

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