KR102676754B1 - Real-time data transmission system using iot measuring devices for power measuremnet and data transmission using the same - Google Patents

Abstract

According to one embodiment of the present invention, measuring electrical data, converting the electrical data, transmitting the data converted in the step to a server, inversely converting the data received from the server, inverse conversion Provides a real-time data transmission system using an IoT measuring device for power measurement, including calculating pattern data based on the electrical data and analyzing power quality through the pattern data, and a data transmission method using the same. can do.

Description

Real-time data transmission system using IoT measuring devices for power measurement and data transmission method using the same {REAL-TIME DATA TRANSMISSION SYSTEM USING IOT MEASURING DEVICES FOR POWER MEASUREMNET AND DATA TRANSMISSION USING THE SAME}

The present invention relates to a real-time data transmission system using an IoT measuring device for power measurement and a data transmission method using the same.

In order to transmit waveform data and various measurement data measured at high speed from existing IoT-based wireless measurement devices to the server through a wireless gateway, the data is transmitted to the server due to low communication speed, limitations in transmission data capacity, and data synchronization. Transmission has its limits.

In recent systems, the demand for IoT-based big data and analysis systems using AI is increasing, but the reality is that IoT-based high-speed communication and high-capacity data collection and analysis are facing technological limitations. In addition, the existing acquisition of high-speed and high-capacity data such as waveform data uses high-speed wireless communication (WIFI) or high-speed wired-based communication (Ethernet) to transmit high-capacity data to a server and analyze it for monitoring. and acquisition of high-capacity data has been judged to be nearly impossible. Data-based analysis is important to determine whether electricity in a building, factory, or office was the cause of the accident, but it is not easy to acquire and analyze IoT-based high-speed and high-capacity data in reality, so it takes a lot of time and effort to identify the cause of the accident. In addition, if it is difficult to determine the exact cause, there is a problem that it is impossible to avoid a situation where the cause of the accident or fire is considered to be a general electrical accident such as a short circuit or leakage current.

Republic of Korea Patent Publication No. 10-2022-0122356 (Publication date: 2022.09.02)

The present invention was developed to solve the above-described technical problems, and provides a real-time data transmission system using an IoT measuring device for power measurement capable of low-speed communication of data measured inside an IoT measuring device, and a data transmission method using the same. The purpose is to do so.

The purpose of the present invention is to provide a real-time data transmission system using an IoT measuring device for power measurement that has a low-speed wireless communication device.

The present invention is a real-time data transmission system using an IoT measuring device for power measurement that can generate and analyze real-time waveforms and patterns of power data and electrical safety data such as voltage, current, power, wattage, frequency, power factor, and leakage current, and the same. The purpose is to provide a data transmission method utilized.

The present invention provides a real-time data transmission system using an IoT measuring device for power measurement that can generate and analyze power quality patterns such as harmonics, waveform distortion, current imbalance, and power outage in time series, and a data transmission method using the same. The purpose.

The purpose of the present invention is to provide a real-time data transmission system using an IoT measuring device for power measurement that can analyze real-time harmonic distortion and a data transmission method using the same.

The problem of the present invention is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

A data transmission method using a real-time data transmission system using an IoT measuring device for power measurement according to an embodiment of the present invention,

measuring electrical data;

converting the electrical data;

Transmitting the data converted in the above step to a server;

Inversely converting the data received from the server;

calculating pattern data based on the inversely converted electrical data; and

It may include analyzing electrical data through the pattern data.

According to one embodiment of the present invention,

The conversion step is,

calculating an average of the effective values of the measured electrical data in a preset time unit; and

It may include performing Fast Fourier Transform based on data generated at each preset time unit.

According to one embodiment of the present invention,

The inverse transformation is,

It can be performed by Inverse Fast Fourier Transform.

According to one embodiment of the present invention,

The pattern data calculation step is,

Extracting data generated from the inversely converted electrical data at each preset time unit and displaying waveforms

Generating real-time data by connecting the extracted data into a time series; and

It may include calculating pattern data by time using the real-time data.

A real-time data transmission system using an IoT measuring device for power measurement according to an embodiment of the present invention,

At least one measuring device that measures and converts electrical data and transmits it to a server through a repeater or gateway;

A gateway that transmits converted data received from at least one of the measuring devices to a server; and

It may include a server that inversely converts and analyzes the converted data transmitted from the gateway to provide information.

According to one embodiment of the present invention,

The server is,

a network server transmitting the converted data received from the gateway to a control server;

It may include a control server that inversely converts the converted data received from the network server, calculates pattern data by time, and performs at least one of displaying, storing, and analyzing information derived using the pattern data by time on a screen.

According to one embodiment of the present invention,

The measuring device is,

A measuring unit that measures electrical data;

a data generator that generates data in a preset time unit by calculating an effective value of the measured waveform in a preset time unit;

a conversion unit that converts the generated data of the time unit; and

It may include a communication unit that transmits the converted data to the gateway.

According to one embodiment of the present invention,

The converted data may have a capacity of 50 bytes or less.

According to one embodiment of the present invention,

The conversion unit,

It can be converted and transmitted using Fast Fourier Transform.

According to one embodiment of the present invention,

The server is,

The converted electrical data can be inversely transformed using Inverse Fast Fourier Transform.

According to one embodiment of the present invention,

The measuring device is,

Data can be transmitted by the gateway and the wireless IoT communication module.

According to one embodiment of the present invention,

The gateway is,

The data can be transmitted through Ethernet or LTE communication with the network server.

According to an embodiment of the present invention, it is possible to provide a real-time data transmission system using an IoT measuring device for low-speed communication power measurement of data measured inside an IoT measuring device.

According to an embodiment of the present invention, a real-time data transmission system using a low-cost and small-sized IoT measuring device for power measurement can be provided.

According to an embodiment of the present invention, real-time waveforms and patterns can be generated and analyzed for power data and electrical safety data such as voltage, current, power, wattage, frequency, power factor, and leakage current.

According to an embodiment of the present invention, it is possible to create and analyze power quality patterns in time series.

According to an embodiment of the present invention, real-time harmonic distortion can be analyzed.

1 is a flowchart of a data transmission method using a real-time data transmission system using an IoT measuring device for power measurement according to an embodiment of the present invention;
Figure 2 is a diagram schematically showing the flow of measurement and data conversion performed in a measurement device according to an embodiment of the present invention;
Figure 3 is a schematic diagram of a real-time data transmission system using an IoT measuring device for power measurement according to an embodiment of the present invention;
Figure 4 is a block diagram showing a measuring device according to an embodiment of the present invention;
Figure 5 is a block diagram showing a control server according to an embodiment of the present invention;
Figure 6 is a diagram showing a real-time data transmission method using an IoT measuring device for power measurement according to an embodiment of the present invention.

Hereinafter, an embodiment of a real-time data transmission system using an IoT measuring device for power measurement according to the present invention and a data transmission method using the same will be described in detail with reference to the attached drawings.

When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. Additionally, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an idealized or excessively formal sense. No.

Figure 1 is a flowchart of a data transmission method using a real-time data transmission system using an IoT measuring device for electric power measurement according to an embodiment of the present invention, and Figure 2 is a flowchart of a data transmission method performed by another measuring device according to an embodiment of the present invention. It is a diagram schematically showing the flow of measurement and data conversion, and FIG. 3 is a schematic diagram of a real-time data transmission system using an IoT measuring device for power measurement according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention. It is a block diagram showing a measuring device according to, Figure 5 is a block diagram showing a control server according to an embodiment of the present invention, and Figure 6 is a real-time data using an IoT measuring device for power measurement according to an embodiment of the present invention. This is a diagram showing the transmission method.

The data transmission method using a real-time data transmission system using the IoT measuring device for power measurement according to FIGS. 1 to 6 includes the steps of measuring electrical data (S100), converting the electrical data (S200), and the steps Transmitting the converted data to a server (S300), inversely converting the data received from the server (S400), calculating pattern data based on the inversely converted electrical data (S500), and the pattern A step of analyzing power quality through data (S600) may be included.

A data transmission method using a real-time data transmission system using an IoT measuring device for power measurement according to an embodiment of the present invention may include measuring electrical data (S100). The step of measuring electrical data (S100) may include a measuring device 100 in a distribution board or switchboard, and the measuring device 100 stores the measured data and uses a wireless IoT communication module included in the measuring device 100. Information can be transmitted to the gateway 200. Preferably, the electrical data may include, but is not limited to, voltage, current, power, reactive power, wattage, power factor, and leakage current waveform measurement data.

The measuring device 100 includes a measuring unit that measures electrical data, a data generating unit that calculates the effective value of the measured waveform and the measured data in a preset time unit and generates data in a preset time unit, and a data generator that generates data in a preset time unit. It may include a conversion unit that converts data and a communication unit that transmits the converted data to the gateway 200.

When the measurement step (S100) is performed in the measuring device 200, the step (S200) of converting the electrical data may be performed. The measuring device 200 can calculate the average value of the effective value of the electrical data measured in the measuring unit in a preset certain time unit, generate a plurality of data by storing continuous time series data, and generate a plurality of data at high speed based on the plurality of generated data. It can be converted by performing Fourier transform.

When the data conversion step (S200) is performed, a step (S300) of transmitting the converted data converted in the step (S200) to the server 300 may be performed. The converted converted data can be transmitted to the gateway 200 through IoT communication, and the data transmitted to the gateway 200 can be transmitted to the server, and more specifically, can be transmitted to the network server 310. there is. Transmission can be performed through Ethernet or LTE communication, but is not limited to this. Additionally, the converted data to be transmitted may be included in a capacity of 50 bytes or less. The data format transmitted from the gateway 200 to the server 300 may include, but is not limited to, sensor ID, channel ID, parameter ID, effective value, multiple conversion orders, and warnings.

Fast Fourier Transform is an efficient algorithm that quickly performs the Discrete Fourier Transform (DFT) and its inverse transform. FFT can be used in many fields, from digital signal processing to algorithms for finding roots of partial differential equations.

When the transmission step is performed, a step (S400) of inversely converting the data received from the server 300 may be performed. Transformed data transformed by the fast Fourier transform can be inversely transformed by the inverse fast Fourier transform.

A step (S500) of calculating pattern data based on the inversely converted electrical data may be performed. The pattern data calculation step includes extracting data generated from the inversely converted electrical data at each preset time unit and displaying a waveform, connecting the extracted data into a time series to generate real-time data, and generating the real-time data. It may include calculating pattern data by time using the method. The pattern data calculation step may include extracting data generated from the inversely converted electrical data for each preset time unit and displaying a waveform, thereby extracting data generated for each preset time unit and displaying a waveform. The extracted data can be connected to a time series to generate real-time data, and pattern data by time can be calculated using the real-time data.

It may include analyzing power quality through the pattern data (S600). The pattern data can be used as analysis data to analyze the leakage current time series power quality, but is not limited to this.

According to the data transmission method using a real-time data transmission system using IoT measuring devices for power measurement, it can be implemented as an IoT-based low-speed data sampling and low-speed communication device, and can be effective as a low-cost and miniaturized device. .

In addition, it is possible to create and analyze real-time harmonic distortion analysis and real-time waveform and pattern generation of power data such as voltage, current, and leakage current, and generate and analyze power quality time series patterns.

A real-time data transmission system using IoT measuring devices for power measurement includes at least one measuring device 100 that measures and converts electrical data and transmits it to the gateway 200, and converted data received from at least one measuring device 100. It may include a gateway 200 that transmits to a server and a server 300 that inversely converts and analyzes the converted data received from the gateway 200 to provide information.

The server 300 is a network server 310 that transmits the converted data received from the gateway 200 to the control server 320, and inversely converts the converted data received from the network server 310 into time-specific pattern data. It may include a control server 320 that calculates and performs at least one of displaying, storing, and analyzing information derived using the time pattern data on the screen. More specifically, the control server 320 includes a receiving unit that receives data from the network server 310, an inverse conversion unit that inversely converts the data, a pattern data derivation unit that derives pattern data through the inversely converted data, and information through the pattern data. It may include, but is not limited to, an analysis unit that analyzes and a display unit that displays the information on the screen.

The measuring device 100 includes a measuring unit that measures electrical data, a data generating unit that calculates the effective value of the measured waveform and the measured data in a preset time unit and generates data in a preset time unit, and the generated time unit. It may include a conversion unit that converts data and a communication unit that transmits the converted data to the gateway, and generates data in a preset time unit by calculating the effective value of the measured electrical data in a preset time unit. Data in time units can be converted and transmitted. Preferably, the converted data may have a capacity of 50 bytes or less, but is not limited thereto.

The converter may convert data using Fast Fourier Transform. Fast Fourier Transform is an efficient algorithm that quickly performs the Discrete Fourier Transform (DFT) and its inverse transform. FFT is used in many fields, from digital signal processing to algorithms for finding roots of partial differential equations.

The communication unit may transmit data through the gateway and the wireless IoT communication module, but is not limited to this. The data format transmitted by the communication unit may include, but is not limited to, sensor ID, channel ID, parameter ID, effective value, multiple conversion orders, and warnings.

A real-time data transmission system using an IoT measuring device for power measurement may include the gateway 200, receive data from the measuring device 100, and transmit the data to the server 300 through Ethernet or LTE communication. Can be transmitted.

The server 300 can inversely transform the converted electrical data by Inverse Fast Fourier Transform, extract a plurality of data, display waveforms, and connect the plurality of data in time series to generate real-time data. can do. Using real-time data, pattern data for various times can be calculated, and pattern data for each hour can be used as various analysis data. Leakage current time series power quality can be analyzed through pattern data.

A real-time data transmission system using IoT measuring devices for power measurement can be implemented as an IoT-based low-speed data sampling and low-speed communication device, and can be effective as a low-cost and miniaturized device.

In addition, it is possible to create and analyze real-time harmonic distortion analysis and real-time waveform and pattern generation of power data such as voltage, current, and leakage current, and generate and analyze power quality time series patterns.

The embodiments of the present invention are not necessarily limited to the above-described embodiments, and it is natural that various modifications and equivalent implementations can be made by those skilled in the art. Therefore, the true scope of rights of the present invention will be determined by the claims described later.

100: measuring device
200: Gateway
300: server
310: network server
320: Control server

Claims (12)

Measuring a plurality of electrical data within a distribution board or switchboard;
calculating an average of the effective values of the plurality of measured electrical data in a preset time unit; and performing Fast Fourier Transform on the basis of data generated at each preset time unit. Converting the electrical data, including;
Transmitting the data converted in the step to the gateway of the server through a wireless IoT communication module;
Inverse Fast Fourier Transforming the data received from the server;
calculating pattern data based on the inversely converted electrical data; and
Analyzing electrical data in real time through the pattern data; including, calculating an average value of the effective value and performing the fast Fourier transform to enable real-time analysis of the electrical data in low-speed data sampling and a low-speed communication device. Data transmission method using a real-time data transmission system using IoT measuring devices for power measurement.
delete delete According to claim 1,
The step of calculating the pattern data is,
extracting data generated from the inversely converted electrical data at each preset time unit and displaying waveforms;
Generating real-time data by connecting the extracted data into a time series; and
A data transmission method using a real-time data transmission system using an IoT measuring device for power measurement, including calculating pattern data by time using the real-time data.
A server that receives converted data received from at least one measuring device that measures and converts a plurality of electrical data within a distribution board or distribution board to a gateway through a wireless IoT communication module, reversely converts and analyzes the converted data, and provides information; Contains,
The conversion calculates the average value of the effective values of the measured electrical data in preset time units, and then performs fast Fourier transform based on the data generated for each preset time unit to perform low-speed data sampling. and a real-time data transmission system using an IoT measuring device for power measurement, which enables real-time analysis of the electrical data in a low-speed communication device.
According to claim 5,
The server is,
a network server transmitting the converted data received from the gateway to a control server; and
A control server that inversely converts the converted data received from the network server, calculates hourly pattern data, and performs at least one of displaying, storing, and analyzing information derived using the hourly pattern data on a screen; power measurement, including; Real-time data transmission system using IoT measuring devices.
According to claim 5,
The measuring device is,
A measuring unit that measures electrical data;
a data generator that calculates an effective value of the measured electrical data in a preset time unit and generates data in a preset time unit;
a transformer that performs Fast Fourier Transform on the generated time unit data; and
A real-time data transmission system using an IoT measuring device for power measurement, including a communication unit that transmits the converted data.

According to claim 7,
The converted data is a real-time data transmission system using an IoT measuring device for power measurement, with a capacity of 50 bytes or less.
delete According to claim 5,
The server is,
A real-time data transmission system using an IoT measuring device for power measurement that inversely transforms the transformed data by Inverse Fast Fourier Transform.
delete According to claim 6,
The gateway is,
A real-time data transmission system using an IoT measuring device for power measurement that transmits the data through Ethernet or LTE communication with the network server.