CN111970352B - Electric power internet of things gateway - Google Patents
Electric power internet of things gateway Download PDFInfo
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- CN111970352B CN111970352B CN202010800520.6A CN202010800520A CN111970352B CN 111970352 B CN111970352 B CN 111970352B CN 202010800520 A CN202010800520 A CN 202010800520A CN 111970352 B CN111970352 B CN 111970352B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
- H02J13/00024—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission by means of mobile telephony
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- Health & Medical Sciences (AREA)
- Alarm Systems (AREA)
- Small-Scale Networks (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention discloses an electric power internet of things gateway, which comprises a data processing module, and a device self-checking module, a power supply self-checking module, a data transmitting module and a control module which are in communication connection with the data processing module, wherein the device self-checking module is used for judging whether each module in the corresponding electric power internet of things gateway and each sensor connected with the electric power internet of things have faults or not, if so, corresponding device fault information is transmitted to the control module, the power supply self-checking module is used for judging whether the power supply state of an external power supply is abnormal or not, if so, power supply fault information is generated and transmitted to the control module, and the control module transmits the received device fault information to the data processing module for compression processing and is transmitted to a data terminal through the data transmitting module; the electric power internet of things provided by the invention combines the internet of things technology with the electric power system and safely and efficiently transmits the sensor information for information acquisition in the electric power system to the data terminal.
Description
Technical Field
The invention relates to the technical field of the Internet of things, in particular to an electric power Internet of things gateway.
Background
Hundreds to thousands of devices can be interconnected together through internet of things technology. Common internet of things technologies include the following: the Ethernet is connected through a cable, is a physical connection technology, can also supply power to equipment through the hardware connection mode, and can save a power module through the Ethernet, but each node of the Ethernet needs a router, and the arrangement of the cable occupies very space and is difficult to flexibly adjust the layout; wireless internet surfing (WiFi), the nature of its wireless connection allows for fast wiring, but compared to ethernet, has the disadvantages of high security hole and large energy consumption; cellular phones, which cover almost the world, have a problem of high cost, and the flow direction is positively correlated with the cost, and if a large amount of data is required, a problem of high cost exists in a manner of using the cellular phone, although there is a problem of high cost, a new generation technology of the cellular phone, such as a 5G technology, has been commercialized gradually, and the problems of cost and flow rate thereof can be further solved.
The internet of things technology and the power equipment are combined, and the advantages are obvious: for example, in the aspect of monitoring the electric power safety tools, if the electric power safety tools for preventing accidents such as electric shock, burn, falling and the like are combined with the Internet of things, the stock monitoring, maintenance monitoring and use monitoring of the used safety tools can be combined, so that the dynamic and comprehensive monitoring and scheduling can be realized, and the electric power safety tools have great value certainly; in the prior art, a device for effectively combining the internet of things technology with equipment in a power system and safely and efficiently transmitting related information to an upper layer is lacking.
Disclosure of Invention
The purpose of the invention is that: the electric Internet of things gateway is used for combining the Internet of things technology with an electric power system and safely and efficiently transmitting sensor information for information acquisition in the electric power system to a data terminal.
The technical scheme is as follows: the electric power internet of things gateway provided by the invention is used for respectively butting each sensor for executing equipment state information acquisition in an electric power system and realizing data transmission to a data terminal; the electric power internet of things gateway comprises a device self-checking module, a power supply self-checking module, a data processing module, a data sending module and a control module;
the data processing module is in butt joint with each sensor; the device self-checking module, the power supply self-checking module and the control module are in communication connection with the data processing module;
and the equipment self-checking module: the control module is used for detecting the working states of all modules in the corresponding electric power internet of things gateway and judging whether all the modules in the electric power internet of things gateway and all the sensors in the electric power system connected with the electric power internet of things gateway have faults or not according to the working states of all the sensors in the electric power system connected with the electric power internet of things gateway, which are acquired by the data processing module, if so, the corresponding equipment fault information is sent to the control module;
and the power supply self-checking module: the power supply system comprises a control module, a power supply fault information generating module and a power supply fault information generating module, wherein the control module is used for generating a power supply fault information;
and the control module is used for: and the data processing module is used for transmitting the received equipment fault information to the data processing module for compression processing, and transmitting the compressed equipment fault information to the data terminal through the data transmitting module.
The control module is also used for transmitting the equipment fault information and the power supply fault information to the data terminal through the data transmitting module; the control data processing module compresses equipment state information in the power system acquired by the sensor into monitoring data, and the monitoring data is sent to the data terminal through the data sending module.
The control module is further used for starting the storage battery to supply power for each module in the corresponding electric power internet of things gateway after receiving the power failure information.
The system also comprises a network self-checking module; the network self-checking module is used for obtaining the network communication type of the current communication in the corresponding electric power internet of things gateway according to the current detected communication signal and sending the network communication type information to the control module; the network communication type comprises at least one of Ethernet communication, WIFI communication and cellular phone communication;
the data transmission module is provided with an Ethernet driver, a WIFI driver and a cellular phone driver; the data sending module is used for sending data to be sent to the data terminal under the control of the control module according to the following method, wherein the data to be sent comprises equipment fault information, compressed equipment fault information, power supply fault information and monitoring data, and the data to be sent are sent to the data terminal:
when the network self-checking module detects the Ethernet signal, the data transmitting module adopts the Ethernet to transmit the data to be transmitted;
when the network self-checking module does not detect the Ethernet signal, the data transmission module adopts WIFI to transmit the data to be transmitted;
when the network self-checking module does not detect the Ethernet signal and does not detect the WIFI signal, the data transmission module adopts the cellular phone to transmit data to be transmitted.
The monitoring data comprises nondestructive monitoring data and lossy monitoring data;
nondestructive monitoring data: monitoring data generated after compressing equipment state information in an electric power system, which is acquired by a sensor in real time;
lossy monitoring data: and extracting the equipment state information in the power system acquired by the sensor according to the set interval time, and compressing the extracted equipment state information to generate monitoring data.
The system also comprises a network self-checking module; the network self-checking module is used for judging the network communication type of the current communication in the corresponding electric power internet of things gateway according to the current detected communication signal and sending the judging result to the control module; the network communication type comprises Ethernet communication, WIFI communication and cellular phone communication;
when the control module receives the power failure information, the control data processing module compresses equipment state information in the power system acquired by the sensor into lossy monitoring data;
and when the network self-checking module does not detect the Ethernet signal, the control module controls the data processing module to compress equipment state information in the power system acquired by the sensor into lossy monitoring data.
The control module is used for controlling the data transmission module to transmit the power failure information, the compressed equipment failure information and the lossy monitoring data to the data terminal through the cellular telephone when the network self-checking module only detects the cellular telephone signal.
The beneficial effects are that: compared with the prior art, the electric power internet of things gateway provided by the invention can safely and efficiently transmit the data detected by the sensor to the data terminal.
Drawings
Fig. 1 is a schematic structural diagram of an electric power internet of things gateway according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
The invention provides an electric power internet of things gateway, which is used for respectively butting all sensors for executing equipment state information acquisition in an electric power system and realizing data transmission to a data terminal, and referring to fig. 1, the electric power internet of things gateway is internally integrated with the following modules: the device comprises a device self-checking module, a network self-checking module, a power supply self-checking module, a data processing module, a data transmitting module and a control module; the data processing module is in butt joint with each sensor; the device self-checking module, the power supply self-checking module and the control module are in communication connection with the data processing module.
The equipment self-checking module is used for self-checking the working state of the system; the network self-checking module is used for detecting the communication type of the communication in the electric power internet of things gateway; the power supply self-checking module is used for detecting the power supply state of the power supply; the data processing module is used for compressing corresponding data; the data transmission module is used for selecting one or more network transmission modes for transmitting corresponding data; the control module is used for calling the data processing module and the data sending module to complete signal processing and transmission according to the received data.
The network self-checking module is also used for detecting the strength of network signals of the communication of the electric power internet of things and adjusting the installation position of the gateway according to the strength of the network signals so as to ensure that the communication of the gateway is smooth.
Specifically, the device self-checking module is used for detecting the working states of the network self-checking module, the power self-checking module, the data processing module, the data transmitting module and the control module in the corresponding electric power internet of things gateway and the working states of the sensors in butt joint with the data processing module, judging whether the network self-checking module, the power self-checking module, the data processing module, the data transmitting module and the control module in the corresponding electric power internet of things gateway and the sensors connected with the electric power internet of things have faults, generating device fault information if the faults occur, and transmitting the generated device fault information to the control module.
When the equipment self-checking module detects that a module in the electric power internet of things gateway and or a sensor connected with the electric power internet of things gateway have working faults or anomalies, equipment fault data are formed, and the following operations are executed: the control module compresses the equipment fault data into equipment fault compressed data through the data processing module; the control module transmits uncompressed equipment fault data or equipment fault compression data to the outside through the data transmission module: for some complex faults or important fault information, the control module controls the data transmission module to transmit uncompressed equipment fault data outwards, and the uncompressed equipment fault data is transmitted to be verified and confirmed by operation and maintenance personnel, wherein the complex faults or important fault information comprises that the temperature of a certain joint of certain equipment in a corresponding power system suddenly rises, and the equipment is subjected to partial discharge to cause frequent alarm; for fault information of general faults and needing long-time monitoring, the control module controls the data sending module to send compressed data of the equipment faults after compression processing to the outside, and the faults of the general faults and needing long-time monitoring comprise sudden increase of equipment vibration, increase of equipment noise and occurrence of equipment deformation signals.
The power supply self-checking module is used for detecting the power supply state of an external power supply externally connected with the corresponding electric power internet of things gateway, judging whether the power supply state is abnormal, generating power failure information if the power supply state is abnormal, and sending the power failure information to the control module; namely: when the power self-checking module detects that the fault conditions such as unstable commercial power and power failure occur, power failure data are formed and sent to the control module. After receiving the power failure data, the control module transmits the power failure data to the outside through the data transmission module, and simultaneously starts a storage battery connected with the corresponding electric power Internet of things to supply power for each module in the electric power Internet of things gateway.
The network self-checking module is used for obtaining the network communication type of the current communication in the corresponding electric power internet of things gateway according to the current detected communication signal and sending the network communication type information to the control module; the network communication type includes at least one of ethernet communication, WIFI communication, and cellular phone communication.
The electric power internet of things gateway is connected with the Ethernet, the WiFi and the cellular telephone, and the data transmission module is provided with an Ethernet driver, a WIFI driver and a cellular telephone driver which can communicate with the outside through one or more of the Ethernet, the WiFi and the cellular telephone; the data sending module is used for sending data to be sent to the data terminal under the control of the control module according to the following method, wherein the data to be sent comprises equipment fault information, compressed equipment fault information, power supply fault information and monitoring data, and the data to be sent are sent to the data terminal:
when the network self-checking module detects the Ethernet signal, the data transmitting module adopts the Ethernet to transmit the data to be transmitted;
when the network self-checking module does not detect the Ethernet signal, the data transmission module adopts WIFI to transmit the data to be transmitted; when the network self-checking module does not detect the Ethernet signal and does not detect the WIFI signal, the data transmission module adopts the cellular phone to transmit data to be transmitted.
The control module is used for transmitting the received equipment fault information to the data processing module for compression processing, and the data processing module transmits the compressed equipment fault information to the data terminal through the data transmitting module; the control module is also used for transmitting the equipment fault information and the power supply fault information to the data terminal through the data transmitting module; the control data processing module compresses equipment state information in the power system acquired by the sensor into monitoring data, and the monitoring data is sent to the data terminal through the data sending module; the control module is also used for starting the storage battery to supply power for each module in the corresponding electric power internet of things gateway after receiving the power failure information. The electric power Internet of things provided by the invention is connected with the commercial power, the electric power Internet of things is connected with the storage battery, and the electric power Internet of things is connected with the sensor in the electric power system.
Under the control of the control module, the data processing module compresses the data sent by each sensor to the electric power internet of things gateway into monitoring data and controls the data sending module to externally transmit the monitoring data; the monitoring data includes lossless monitoring data and lossy monitoring data. The nondestructive monitoring data are implemented and continuous monitoring data, and the lossy monitoring data are monitoring data sampled at intervals, namely: the nondestructive monitoring data are monitoring data generated after equipment state information in the power system collected by the sensor in real time is compressed; the lossy monitoring data are monitoring data generated by extracting equipment state information in the power system acquired by the sensor according to set interval time and compressing the extracted equipment state information.
The control module is also used for controlling the data processing module to compress the data sent by the sensor into the lossy monitoring data when the power self-checking module detects the power supply abnormality and further generates power failure data;
the control module is also used for controlling the data processing module to compress the data sent by the sensor into the lossy monitoring data when the electric power Internet of things adopts WiFi or cellular phone communication.
Specifically, the data sending module is used for working in one of the following modes under the control of the control module:
transmitting the nondestructive monitoring data to the outside through the Ethernet; transmitting the lossy data and the power failure data to the outside through the Ethernet; transmitting the nondestructive monitoring data and the equipment fault compression data to the outside through the Ethernet; transmitting the lossy monitoring data and the equipment fault compression data to the outside through the Ethernet; transmitting the lossy monitoring data to the outside through WiFi; the power failure data, the equipment failure compression data and/or the lossy monitoring data are transmitted to the outside through the cellular phone, namely: when the control module receives the power failure information, the control data processing module compresses equipment state information in the power system acquired by the sensor into lossy monitoring data; when the network self-checking module does not detect the Ethernet signal, the control module controls the data processing module to compress equipment state information in the power system acquired by the sensor into lossy monitoring data; the control module is used for controlling the data transmission module to transmit the power failure information, the compressed equipment failure information and the lossy monitoring data to the data terminal through the cellular telephone when the network self-checking module only detects the cellular telephone signal. The control module is used for controlling the data transmission module to communicate by adopting WiFi or a cellular phone when the network self-checking module detects that the Ethernet has no signal; the control module is also used for controlling the data transmission module to communicate by adopting a cell phone when the network self-checking module detects that the Ethernet and the WiFi are both free of signals.
According to the electric power internet of things, the internet of things technology and the electric power equipment are combined, and one or more modes of safety, confidentiality and high efficiency of data detected by the sensor can be selected for external transmission; when the device is operating normally, the invention operates in one way. When an abnormality occurs, the invention adopts a specific emergency scheme to operate, and takes confidentiality, efficiency and cost into consideration.
The foregoing is merely a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and the modifications and variations should also be regarded as the scope of the invention.
Claims (5)
1. The electric power internet of things gateway is used for respectively butting all sensors for executing equipment state information acquisition in an electric power system and realizing data transmission to a data terminal, and is characterized by comprising an equipment self-checking module, a power self-checking module, a data processing module, a data transmitting module and a control module;
the data processing module is in butt joint with each sensor; the device self-checking module, the power supply self-checking module and the control module are in communication connection with the data processing module;
and the equipment self-checking module: the control module is used for detecting the working states of all modules in the corresponding electric power internet of things gateway and judging whether all the modules in the electric power internet of things gateway and all the sensors in the electric power system connected with the electric power internet of things gateway have faults or not according to the working states of all the sensors in the electric power system connected with the electric power internet of things gateway, which are acquired by the data processing module, if so, the corresponding equipment fault information is sent to the control module;
and the power supply self-checking module: the power supply system comprises a control module, a power supply fault information generating module and a power supply fault information generating module, wherein the control module is used for generating a power supply fault information;
and the control module is used for: the data processing module is used for transmitting the received equipment fault information to the data processing module for compression processing, and the data processing module is used for transmitting the compressed equipment fault information to the data terminal through the data transmitting module;
the control module is also used for sending the equipment fault information and the power supply fault information to the data terminal through the data sending module; the control data processing module compresses equipment state information in the power system acquired by the sensor into monitoring data, and the monitoring data is sent to the data terminal through the data sending module;
the system also comprises a network self-checking module; the network self-checking module is used for obtaining the network communication type of the current communication in the corresponding electric power internet of things gateway according to the current detected communication signal and sending the network communication type information to the control module; the network communication type comprises at least one of Ethernet communication, WIFI communication and cellular phone communication;
the data transmission module is provided with an Ethernet driver, a WIFI driver and a cellular phone driver; the data sending module is used for sending data to be sent to the data terminal under the control of the control module according to the following method, wherein the data to be sent comprises equipment fault information, compressed equipment fault information, power supply fault information and monitoring data, and the data to be sent are sent to the data terminal:
when the network self-checking module detects the Ethernet signal, the data transmitting module adopts the Ethernet to transmit the data to be transmitted;
when the network self-checking module does not detect the Ethernet signal, the data transmission module adopts WIFI to transmit the data to be transmitted;
when the network self-checking module does not detect the Ethernet signal and does not detect the WIFI signal, the data transmission module adopts the cellular phone to transmit data to be transmitted.
2. The electrical gateway of claim 1, further comprising a battery, wherein the control module is further configured to, after receiving the power failure information, activate the battery to power each module in the corresponding electrical gateway.
3. The electrical thing networking gateway of claim 1, wherein the monitoring data comprises lossless monitoring data, lossy monitoring data;
nondestructive monitoring data: monitoring data generated after compressing equipment state information in an electric power system, which is acquired by a sensor in real time;
lossy monitoring data: and extracting the equipment state information in the power system acquired by the sensor according to the set interval time, and compressing the extracted equipment state information to generate monitoring data.
4. A power internet of things gateway according to claim 3, further comprising a network self-test module; the network self-checking module is used for judging the network communication type of the current communication in the corresponding electric power internet of things gateway according to the current detected communication signal and sending the judging result to the control module; the network communication type comprises Ethernet communication, WIFI communication and cellular phone communication;
when the control module receives the power failure information, the control data processing module compresses equipment state information in the power system acquired by the sensor into lossy monitoring data;
and when the network self-checking module does not detect the Ethernet signal, the control module controls the data processing module to compress equipment state information in the power system acquired by the sensor into lossy monitoring data.
5. The power internet of things gateway of claim 4, wherein the control module is configured to control the data transmission module to transmit the power failure information, the compressed device failure information, and the lossy monitoring data to the data terminal via the cellular phone when the network self-test module detects only the cellular phone signal.
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| KR102119374B1 (en) * | 2019-11-25 | 2020-06-05 | 한국인터넷진흥원 | Method and apparatus for taking action to the abnormal behavior of iot devices |
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