KR102248727B1 - Multi-protocol iot gateway for energy management - Google Patents

Abstract

The present invention is a power IoT gateway system which can accommodate various power devices and sensor protocols in industrial sites and relates to the power IoT gateway system which collects and processes data from various protocol types of power devices regardless of protocols. The power IoT gateway system includes: a multi-interface device for receiving and transmitting power data including at least one of sensor data and facility data; a cloud which provides at least one of a cloud service, a web service, an energy management service, a blockchain, and a power transaction service; and an edge gateway which receives the power data, processes the power data, and transmits the power data to the cloud.

Description

Power IoT gateway supporting multi-protocol {MULTI-PROTOCOL IOT GATEWAY FOR ENERGY MANAGEMENT}

The present invention is a power IoT gateway system that handles data from power devices of various protocol types regardless of protocol and performs edge computing.

With the proliferation of smart grids, various convergences between the power industry and ICT industry are being attempted, and IoT technology is being applied at a rapid pace, especially for microgrids, small-scale power generation companies, remote meter reading, and home power consumption monitoring. In this environment, not only utility operators, but also places where various power environments such as buildings, apartments, distributed resource power generation workplaces, houses, factories, and microgrids are configured need monitoring and management functions for efficient power generation, consumption, and storage. In order to perform these functions, there is a need for an IoT gateway solution that collects and manages power data, monitors the status of power devices, and performs control functions.

In addition, in power IoT, a power device, for example, a sensor or a power facility, has various communication protocols, and a solution capable of accommodating various communication protocols is required.

KR 10-2019-0079917 A

An object of the present invention is to provide a power IoT gateway system that enables easy and simple efficient interworking/management of various power facilities/sensors of a smart grid and enabling small-scale power management without a large-scale cloud platform by applying edge computing technology. .

In addition, it is possible to reduce the cost of installation, management and maintenance of sensors/facilities by solving interfaces with various power sensors/facilities in the field with a single gateway, and performs data processing, automatic correction, self-diagnosis, and decision-making functions. It aims to provide a power IoT gateway system.

A power IoT gateway system according to an embodiment of the present invention includes: a power device generating power data including at least one of sensor data and power equipment data; A cloud providing at least one of a cloud service, a web service, and an EMS (Energy Management System) service; And a power gateway receiving the power data to process the power data and transmitting the power data to the cloud, wherein the power gateway receives the power data from the power device and manages various communication protocols. Power device connection; A multi-protocol adaptation unit for transmitting the received power data to at least one of an internal application program and the external cloud according to a preset policy; A gateway application unit that provides an application service by driving an application program using the power data received from the multi-protocol adaptation unit; And an external connection unit for transmitting power data received from the multi-protocol adaptation unit to the cloud.

In addition, the power device connection unit includes a network expansion slot unit for expanding a communication environment by mounting various communication modules, and the communication module includes a Wi-Fi module, a LoRa module, a 5G module, a Bluetooth module, a Wi-SUN module, and an RS- Any one of a 238/485 module and an Ethernet module, and some of the communication modules may be fixedly mounted to the power device connection.

In addition, the multi-protocol adaptation unit comprises a multi-protocol management unit that identifies the communication module installed in the network expansion slot unit and generates an agent that manages a communication protocol supported by the identified communication module; A data processing unit for managing the power data received from the multi-protocol management unit and determining whether to edge-compute the power data may be provided.

In addition, the gateway application unit may include a power data processing unit and a power data application unit.

In addition, the gateway application may include a preprocessing rate engine that registers, changes, or deletes a rule for processing the power data; Data preprocessing for preprocessing, filtering, and correcting the power data according to the rule; And a real-time service that manages the rules and detects events or failures.

In addition, the rule may include a rule for correcting the power data and correcting a defect, a rule for filtering or converting data, and a rule for detecting an event or failure.

In addition, the power data application unit may control and analyze equipment built by the power device by using data transmitted from the gateway application.

A power gateway according to an embodiment of the present invention is a power device that generates power data including at least one of sensor data and power facility data: receives power data and processes the power data, and includes a cloud service, a web service, and an EMS. (Energy Management System) a power gateway for transmitting the power data to a cloud that provides at least one service among services, comprising: a power device connection unit for receiving the power data from the power device and managing various communication protocols; A multi-protocol adaptation unit transmitting the received power data to at least one of an internal application program and an external cloud according to a preset policy; A gateway application unit that provides an application service by driving an application program using the power data received from the multi-protocol adaptation unit; And an external connection unit for transmitting power data received from the multi-protocol adaptation unit to the cloud.

The power IoT gateway system according to the present invention does not require a user to manage various communication protocols, and supports edge computing to provide cost reduction, high functionality, and high convenience.

1 is a conceptual diagram of a power IoT gateway system supporting multiprotocol according to the present invention
Figure 2 is a block diagram of the power gateway of Figure 1,
Figure 3 is a block diagram of the power device connection of Figure 2;
4 is a block diagram of a multi-protocol adaptation unit of FIG. 2;
5 is a block diagram of a gateway application unit of FIG. 2, and
6 is a block diagram of an external connection of FIG. 2.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. The term and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items. 'Or' can be interpreted as a logical sum in the context, but in general, unless there is a direct description such as'otherwise' or'logical exclusive sum', it has the same meaning as'and/or', that is, interpreted as a logical sum. do.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle. In addition, the fact that the first component and the second component on the network are connected or connected means that data can be exchanged between the first component and the second component by wire or wirelessly.

In addition, the suffixes "module" and "unit" for the constituent elements used in the following description are given in consideration of only ease of writing in the present specification, and do not impart a particularly important meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably with each other.

When such components are implemented in an actual application, two or more components may be combined into one component, or one component may be subdivided into two or more components as necessary. The same reference numerals are assigned to the same or similar elements throughout the drawings, and detailed descriptions of elements having the same reference numerals may be replaced by descriptions of the above-described elements and may be omitted.

Further, the present invention encompasses all possible combinations of the embodiments indicated herein. The various embodiments of the present invention are different from each other but are not mutually exclusive. One embodiment of a specific shape, structure, function, and characteristic described herein may be implemented in another embodiment. For example, components mentioned in the first and second embodiments may perform all functions of the first and second embodiments.

1 is a block diagram of a power gateway system according to the present invention, FIG. 2 is a block diagram of the power gateway of FIG. 1, FIG. 3 is a block diagram of a power device connection part of FIG. 2, and FIG. 4 is a block diagram of a multi-protocol adaptor of FIG. A diagram, FIG. 5 is a block diagram of a gateway application unit of FIG. 2, and FIG. 6 is a block diagram of an external connection unit of FIG. 2.

Referring to FIG. 1, the power IoT gateway system may include a power device 10, a power gateway 20, and a cloud 30.

The power device 10 is a variety of devices used in the power industry, and includes physical measurement devices such as sensor devices, watt-hour meters, ESS (Energy Storage System), photovoltaic generators, inverters, switches, and actuators, and advanced metering (AMI). Infrastructure), PLC (Logic Controller), DCS (Distributed Control System), Modbus, OPC (OLE for process control), and/or DBMS (Database Management System). The power device 10 is not limited thereto, and may be a variety of devices, and may be an Internet of Things (IoT) or a variety of industrial things (IIoT).

The power device 10 may be part of an equipment or device, and such equipment or device may build a system such as a factory.

The power device 10 may output facility data and sensor data (hereinafter, “power data”). Power data includes at least one of electricity generation, consumption, charge, discharge, transaction volume, time, predicted value, temperature, humidity, brightness, dust (carbon), pressure, vibration, voltage, current, parallel, magnetic, illuminance, proximity, and distance. You can have one.

The power device 10 may communicate with the outside in a short distance/remote distance and wired/wireless, and transmit power data to the outside.

The power device 10 may have a different communication protocol for each device. Therefore, AP (Access Point) must have all communication protocols and must be able to collect data according to each communication protocol. The power IoT gateway system according to the present invention can solve this problem.

The power gateway 20 may receive power data of the power device 10, process the power data, or transmit the power data to an external cloud 30.

The power gateway 20 may provide edge computing. Edge computing is a distributed open IT architecture that can support mobile computing and/or Internet of Things (IoT) technologies by providing distributed processing power.

By providing edge computing, the power gateway 20 can perform real-time data processing without waiting time, can support acceleration of data flow, and can respond to data almost immediately when data is generated, thereby reducing waiting time. , By supporting efficient data processing, Internet bandwidth usage can be reduced, and useful security services can be provided by not using a public domain.

The power gateway 20 not only processes data by itself, but also selects or transmits the data to the cloud 30 according to a preset policy.

The cloud 30 may be an external network connected to the power gateway 20. The cloud 30 may be various cloud platforms such as the Internet, a server providing a service, a cloud service deployed in a factory, a web service, an EMS (Energy Management System) service, and a SCADA (Supervisory Control And Data Acquisition).

Referring to FIG. 2, the power gateway 20 may include a power device connection unit 100, a multi-protocol adaptation unit 200, a gateway application unit 300, and an external connection unit 400.

The power device connection 100 may communicate with the power device 10. As mentioned above, the power device 10 may have any communication protocol. Accordingly, the power device connection unit 100 must be able to provide various communication protocols.

The power device connection unit 100 may support various standard protocols, industry standards, and non-standard protocols (provided by sensor/equipment manufacturers) to collect data of manufacturing facilities and sensors. For example, the power device connection unit 100 supports a PLC (Logic Controller), a universal asynchronous transceiver (UART), RS-485, USB, RTC, TCP/IP, and the like. IoT sensor integration module (M3) is a wireless communication module that conforms to Bluetooth, Zigbee, infrared communication (IrDA), Wi-Fi communication protocol, and LoRa that follows the LoRa communication protocol. LoRa) communication module, can support 3G, LTE, LTE-M 5G communication protocol.

Referring to FIG. 3, the power device connection unit 100 may include a communication interface expansion slot unit 110 capable of expanding various communication modules. The communication module may include a Wi-Fi module, a LoRa module, a 5G module, a Bluetooth module, a Wi-SUN module, an RS-238/485 module, and an Ethernet module 5G module.

In the power device connection unit 100, some of the communication modules mentioned above are fixedly mounted, and the communication protocol can be appropriately extended by mounting the communication module according to the communication protocol of the power device 10.

The multi-protocol adaptation unit 200 may be compatible so that the power data received from the power device connection unit 100 can be used in other application programs or cloud services. The multi-protocol adaptation unit 200 may transmit power data to either or both sides of the gateway application unit 300 or the external connection unit 400 as necessary or according to a policy.

Referring to FIG. 4, the multi-protocol adaptation unit 200 may include a multi-protocol management unit 210 and a data processing unit 220.

The multi-protocol management unit 210 may include a plug-in manager, various agents, and a common protocol handler.

The plug-in manager may identify a communication module installed in the communication interface expansion slot unit 110 and generate an agent that manages a communication protocol supported by the communication module.

Agents can be created by being virtualized, such as containers or virtual machines (VMs).

Agents may include OPC-UA agents, SECS-I agents, HSMS agents, MODBUS agents, PROFINET agents, MQTT agents, CoAP agents, and EtherNet-IP agents.

The common protocol handler can convert the received power data into an upper layer protocol, and so on, so that it can be used by other AIPs or services. The common protocol handler may switch the protocol so that the gateway application unit 300 or the cloud 30 can use power data.

The data processing unit 220 may manage power data received from the multi-protocol management unit 210. The data processing unit 220 may determine whether to edge-compute power data. If it is determined that it is power data to be edge computing, the data processing unit 220 may transmit the power data to the gateway application unit 300. Otherwise, the data processing unit 220 may transmit power data to the external connection unit 400.

The gateway application unit 300 can drive several applications. The gateway application unit 300 may be a pivotal part for the power gateway 20 to perform edge computing.

The gateway application unit 300 may improve the performance of the smart grid application service by processing some of the data processing, analysis, and control functions provided by the cloud platform and EMS in a short distance with facilities/sensors in the field.

The gateway application unit 300 intelligently filters/combines/corrects/analyzes data collected from various sensors/facilities, so that the concept of edge computing for improving the performance of smart grid applications, services, and systems may be applied.

Referring to FIG. 5, the gateway application unit 300 may include a power data processing unit 310 and a power data application unit 360.

The power data processing unit 310 may include a preprocessing rule engine 320, a data preprocessing 330, and a real time service 340.

The preprocessing rule engine 320 may register, change, or delete a rule for processing power data. The rule may include a rule for correcting data including power data or correcting a defect, a rule for filtering or converting data, a rule for detecting an event or failure, and the like.

The data preprocessing 330 may preprocess, filter, and/or correct data according to rules.

The real-time service 340 operates in real time to manage rules and detect events or failures, and may control other components or data.

The power data application unit 350 may control or analyze the power device 10 or the equipment/system built by the power device 10 by using the data transmitted from the power data processing unit 310.

The power data application unit 350 may include a database 360, a data analysis unit 370, and a monitoring control unit 380.

The database 360 may collect and/or store data. The database 360 may pre-process and analyze data. The database 360 may include an operating system for processing power data.

The data analysis unit 370 may analyze machine learning for control and/or analysis or develop a model.

The data analysis unit 370 may store facility/sensor data and build a platform based on big data. The data analysis unit 370 may select a machine learning data analysis algorithm (RNN, LSTM, CNN, etc.) or design an application thereof. The data analysis unit 370 may learn an analysis algorithm or verify suitability.

The monitoring control unit 380 may monitor the smart grid site and design a predictive maintenance function.

The monitoring control unit 380 may select facilities/sensors/data to be monitored and design a monitoring policy. The monitoring control unit 380 may define environmental variables that affect the facility/generation/consumption status. The monitoring control unit 380 may design sensing data analysis and prediction technology based on statistical analysis. The monitoring control unit 380 may design a predictive maintenance function to which a machine learning analysis algorithm is applied.

The monitoring control unit 380 may design a remote control function in a mobile terminal such as a smart phone or a tablet PC.

The external connection unit 400 may exchange data with the cloud 30. The external connection unit 400 may transmit power data received from the gateway application unit 300 (especially, the data processing unit 220) to the cloud 30 to request a necessary service or receive a corresponding service.

Referring to FIG. 6, the external connection unit 400 may include a cloud management module 410, a data broker manager 420, and a data broker 430.

The cloud management module 410 may manage which service of the cloud 30 to send power data to.

The data broker manager 420 may transmit power data to a data broker 430 that manages a cloud service to which power data is to be transmitted.

The data broker 430 may convert power data to be suitable for a corresponding cloud service. The data broker 430 may include an EMS data broker, a blockchain data broker, a cloud data broker, and a web data broker.

Each broker can transmit the data to the server that provides the service. Brokers can be created in bundles.

The present invention may be implemented in hardware or software. As for the implementation, the present invention can also be implemented as a computer-readable code on a computer-readable recording medium. That is, it may be implemented in the form of a recording medium including instructions executable by a computer. Computer-readable media includes all kinds of media that store data that can be read by a computer system. Computer-readable media may include computer storage media and communication storage media. Computer storage media includes all storable media implemented as any method or technology for storing information such as computer-readable instructions, data structures, program modules, and other data, and volatile/nonvolatile/hybrid type memory It is not limited to whether it is a separate type or non-separable type. The communication storage medium includes a modulated data signal or transmission mechanism such as a carrier wave, any information transmission medium, and the like. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the technical field to which the present invention belongs.

In addition, although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. In addition, various modifications may be possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

The present invention can be implemented in hardware or software. As for the implementation, the present invention can also be implemented as a computer-readable code on a computer-readable recording medium. That is, it may be implemented in the form of a recording medium including instructions executable by a computer. Computer-readable media includes all kinds of media that store data that can be read by a computer system. Computer-readable media may include computer storage media and communication storage media. Computer storage media includes all storable media implemented as any method or technology for storing information such as computer-readable instructions, data structures, program modules, and other data, and volatile/nonvolatile/hybrid type memory It is not limited to whether it is a separate type or non-separable type. The communication storage medium includes a modulated data signal or transmission mechanism such as a carrier wave, any information transmission medium, and the like. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the technical field to which the present invention belongs.

In addition, although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. In addition, various modifications may be possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: power device connection unit 110: communication interface expansion slot unit
200: multiprotocol adaptation unit 210: multiprotocol management unit
220: data bottom section 300: GW application section
310: power data processing unit 320: pre-processing rule engine
330: data preprocessing 340: real-time service
350: power data application unit 360: database
370: data analysis unit 380: monitoring control unit

Claims (4)

A power device for generating power data including at least one of sensor data and equipment data;
A cloud providing at least one of a cloud service, a web service, an EMS, a block chain, and a smart grid service; And
A power gateway for receiving the power data, processing the power data, and transmitting the power data to the cloud,
The power gateway,
A power device connection unit that receives the power data from the power device and manages various communication protocols;
A multi-protocol adaptation unit for transmitting the received power data to at least one of an internal application program and the external cloud according to a preset policy;
A gateway application unit that provides an application service by driving an application program using the power data received from the multi-protocol adaptation unit; And
And an external connection unit for transmitting power data received from the multi-protocol adaptation unit to the cloud,
The power data includes electricity generation amount, consumption amount, charge amount, discharge amount, transaction volume, time, predicted value, temperature, humidity, brightness, dust, pressure, vibration, voltage, current, parallel, magnetism, illuminance, proximity, and distance,
The power device connection unit includes a communication interface expansion slot unit for expanding a communication environment by mounting various communication modules,
Some of the communication modules are fixedly mounted on the power device connection, and one of the remaining communication modules is mounted on the power device connection according to a communication protocol,
The multi-protocol adaptation unit,
A multi-protocol management unit that detects the communication module mounted on the communication interface expansion slot unit and creates an agent that manages a communication protocol supported by the identified communication module;
And a data processing unit for managing the power data received from the multi-protocol management unit and determining whether to edge-compute the power data,
The agent is created by being virtualized,
The gateway application unit includes a power data processing unit and a power data application unit,
The power data processing unit,
A pre-processing rule engine for registering, changing, or deleting a rule for processing the power data;
Data preprocessing for preprocessing, filtering, and correcting the power data according to the rule; And
It has a real-time service that manages the rules and detects events or failures,
The rule includes a rule for correcting the power data and correcting a defect, a rule for filtering or converting data, a rule for detecting an event or failure,
The power data application unit controls and analyzes the equipment built by the power device using the data transmitted from the power data processing unit,
The power data application unit
A database for collecting and storing the data, preprocessing and analyzing the data;
A data analysis unit that applies a machine learning data analysis algorithm for the control and analysis, learns the analysis algorithm, and verifies suitability; And
Select facilities, sensors, and data to be monitored, design monitoring policies, define environmental variables that affect facilities, power generation, and consumption status, design sensing data analysis and prediction technology based on statistical analysis, and A monitoring control unit for designing a predictive maintenance function to which a machine learning data analysis algorithm is applied; and
The monitoring control unit has a remote control function in the mobile terminal,
The external connection unit includes a cloud management module, a data broker manager, and a data broker,
The cloud management module manages which service of the cloud to send the power data to,
The data broker manager transmits the power data to the data broker that manages a cloud service to which the power data is to be transmitted,
The data broker converts the power data to be suitable for the cloud service, a power IoT gateway system. delete delete Receives from the power device 10 that generates power data including at least one of sensor data and facility data to process the power data, and at least one service from cloud service, web service, EMS, blockchain, and smart grid service As a power gateway for transmitting the power data to the cloud providing,
A power device connection unit that receives the power data from the power device and manages various communication protocols;
A multi-protocol adaptation unit for transmitting the received power data to at least one of an internal application program and the external cloud according to a preset policy;
A gateway application unit that provides an application service by driving an application program using the power data received from the multi-protocol adaptation unit; And
And an external connection unit for transmitting power data received from the multi-protocol adaptation unit to the cloud,
The power data includes electricity generation amount, consumption amount, charge amount, discharge amount, transaction volume, time, predicted value, temperature, humidity, brightness, dust, pressure, vibration, voltage, current, parallel, magnetism, illuminance, proximity, and distance,
The power device connection unit includes a communication interface expansion slot unit for expanding a communication environment by mounting various communication modules,
Some of the communication modules are fixedly mounted on the power device connection, and one of the remaining communication modules is mounted on the power device connection according to a communication protocol,
The multi-protocol adaptation unit,
A multi-protocol management unit that detects the communication module mounted on the communication interface expansion slot unit and creates an agent that manages a communication protocol supported by the identified communication module;
And a data processing unit for managing the power data received from the multi-protocol management unit and determining whether to edge-compute the power data,
The agent is created by being virtualized,
The gateway application unit includes a power data processing unit and a power data application unit,
The power data processing unit,
A pre-processing rule engine for registering, changing, or deleting a rule for processing the power data;
Data preprocessing for preprocessing, filtering, and correcting the power data according to the rule; And
It has a real-time service that manages the rules and detects events or failures,
The rule includes a rule for correcting the power data and correcting a defect, a rule for filtering or converting data, a rule for detecting an event or failure,
The power data application unit controls and analyzes the equipment built by the power device using the data transmitted from the power data processing unit,
The power data application unit
A database for collecting and storing the data, preprocessing and analyzing the data;
A data analysis unit that applies a machine learning data analysis algorithm for the control and analysis, learns the analysis algorithm, and verifies suitability; And
Select facilities, sensors, and data to be monitored, design monitoring policies, define environmental variables that affect facilities, power generation, and consumption status, design sensing data analysis and prediction technology based on statistical analysis, and A monitoring control unit for designing a predictive maintenance function to which a machine learning data analysis algorithm is applied; and
The monitoring control unit has a remote control function in the mobile terminal,
The external connection unit includes a cloud management module, a data broker manager, and a data broker,
The cloud management module manages which service of the cloud to send the power data to,
The data broker manager transmits the power data to the data broker that manages a cloud service to which the power data is to be transmitted,
The data broker converts the power data to be suitable for the cloud service.

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