KR102344193B1 - System and method for monitoring overhead transmission line - Google Patents

Abstract

We present an overhead transmission line monitoring system and method for monitoring and diagnosing overhead transmission lines with low power by collecting line information of the IoT standard through low-power-based long-distance wireless communication. The proposed overhead power transmission line monitoring system collects line information from one of a line information collection device that collects line information, a gateway that collects line information from a line information collection device through a low-power wide area network, a line information collection device, and a gateway, A communication control server that converts information into overhead line information of the common Internet of Things standard, an Internet of Things common platform that collects and stores overhead line information from the communication control server, and a control system that inquires and subscribes to overhead line information from the Internet of Things common platform include

Description

SYSTEM AND METHOD FOR MONITORING OVERHEAD TRANSMISSION LINE

The present invention relates to an overhead power transmission line monitoring system and method, and more particularly, to an overhead power transmission line monitoring system and method for remotely monitoring and diagnosing an overhead power transmission line in real time.

Due to the continuous increase in the size of power transmission facilities, the ripple effect of the power system in case of facility failure is greatly increasing, while the social demand for uninterruptible power supply is increasing.

As the number of aging transmission lines continues to increase due to long-term use, the risk factors for failure are also increasing.

Currently, overhead power transmission lines are subject to regular manpower (visual)-centered facility diagnosis, which makes it impossible to recognize failures in the event of facility abnormalities before or after inspection. It has limitations in preventing failures.

Although it is urgent to introduce a scientific diagnosis method for the efficient management of overhead power transmission lines, there are great limitations in securing power and communication facilities for the installation of diagnostic sensors due to the characteristics of facilities scattered across the country.

The conventional remote meter reading device communicates using a short-range wireless communication technology such as ZigBee, and it is difficult to implement with low power because it consumes a current of up to 200 mA during data communication.

In addition, in the remote meter reading data management systems for controlling remote meter reading devices, the technology for operating the network does not exist, and it is only at the level of collecting data and expressing it in a user interface.

As such, the conventional wireless communication device, and the control system for controlling it, meet the requirements of the operator and increase in maintenance due to the problem of the lifetime of the device, the absence of a technique for wireless communication network management, and the problem of simple data collection and expression. There is a limit to reflecting immediately.

Korean Patent Laid-Open Patent No. 10-2015-0030837 (Name: Transmission Line Monitoring System)

The present invention has been proposed in consideration of the above circumstances, and a system and method for monitoring and diagnosing an overhead power transmission line with low power by collecting line information of the Internet of Things standard through low-power-based long-distance wireless communication with line information. is intended to provide

In order to achieve the above object, an overhead power transmission line monitoring system according to an embodiment of the present invention is a line information collection device installed in a power transmission facility included in an overhead power transmission line to collect line information, and a line information collection device through a low-power wide area network A communication control server that collects line information from one of a gateway, a line information collection device, and a gateway that collects line information from and a control system that inquires and subscribes to overhead line information from the common IoT platform and the IoT common platform.

The line information collection device may transmit line information to the gateway using LoRaWAN and transmit line information to the communication control server using a mobile communication network. To this end, the track information collection device is a diagnostic sensor for detecting line information including one or more of pylon tilt information, wire tension value, electrical vibration value, three-axis wire acceleration, insulator leakage current, weather information, and image information, and wired communication It may include a sensor management terminal that collects line information from the diagnostic sensor through the interface and transmits the line information to one of a gateway and a communication control server through a wireless communication interface. At this time, the diagnostic sensor is a tilt sensor installed on the transmission pylon to detect pylon tilt information, a tension sensor installed on the transmission cable to detect the wire tension value, a vibration sensor installed on the transmission cable to detect electrical vibration values, and a transmission cable. Galloping sensor installed to detect 3-axis electric wire acceleration, leakage current sensor installed in insulator to detect insulator leakage current, weather sensor installed in transmission pylon to detect weather information, and image information captured around the pylon It includes at least one of the video cameras, and the sensor management terminal is connected to the diagnostic sensor with one of a UART interface, an RS-232 interface, an RS-485 interface, and a current interface, a wired communication interface for collecting line information from the diagnostic sensor, a LoRaWan interface A wireless communication interface that transmits line information to the gateway through the NB-IoT interface, and a central processing unit that controls the wireless communication interface to transmit line information to one of the gateway and communication control server may include

The gateway may collect line information from the line information collecting device through the LoRaWAN interface, and transmit the line information to the communication control server through one of Ethernet and a mobile communication network.

The communication control server works with the IoT common platform and Mca interface, converts line information into overhead line information in the oneM2M data transmission format of the IoT common standard, and transmits it to the IoT common platform. To this end, the communication control server includes an authentication processing unit that manages network access authentication of the gateway and the line information collection device, a connection management unit that manages the line information collection device connected to the gateway, and an end-to-end security process between the line information collection device and the control system. It may include a security processing unit and an interlocking processing unit that converts line information, which is the RoRaWAN application data format, into overhead line information, which is a data transmission format of oneM2M, and transmits it to the IoT common platform.

The IoT common platform collects and manages overhead line information in oneM2M data transmission format from the communication control server, and transmits overhead line information corresponding to the inquiry information to the control system when a previously registered control system inquiry is requested. When applying for subscription of the control system, the newly registered overhead line information can be transmitted to the control system.

In order to achieve the above object, an overhead power transmission line monitoring method according to an embodiment of the present invention is an overhead power transmission line monitoring method using an overhead power transmission line monitoring system, comprising the steps of registering a line information collection device and a control system in a common IoT platform , the step of registering the track information collected by the registered track information collection device in the step of registering to the IoT common platform, and the step of providing the track information based on the request of the registered control system in the registering step. .

The registering includes registering a line information collecting device installed in a power transmission facility, and registering the line information collecting device includes registering the line information collecting device as a device, collecting the line information normally registered in the device registering step Creating a managed object resource of the device, generating device information of the line information collecting device when the management object creation is completed, generating firmware information of the line information collecting device, and generating software information of the line information collecting device may include steps.

The registering step includes registering a control system using the line information collected by the line information collecting device, and the registering the control system includes registering a system service of the control system, and a service management object resource of the control system. It may include generating, generating service information of the control system, and generating software information of the control system.

The step of registering the track information includes creating a storage resource of the track information collection device based on the storage resource registration request message, and in the step of creating the storage resource, the track information collection device that has transmitted the storage resource registration request message In the registered state, it is possible to create a storage resource of the line information collection device.

Registering the line information may include generating a data resource including the line information based on the data resource registration request message, and the data resource registration request message may include the line information.

The providing of the line information includes providing the previously registered line information to the control system based on the inquiry request, and the providing of the previously registered line information includes a data inquiry request message including the data inquiry condition from the control system It may include receiving, the control system is in a registered state, detecting the line information that satisfies the data inquiry condition and transmitting the information to the control system.

The providing of the line information includes providing newly registered line information to the control system based on a subscription request, and the providing of the newly registered line information includes receiving a subscription request message from the control system, control If the system is registered, the step of registering the data subscription and when the line information is newly registered, it may include the step of transmitting a line information registration alarm to the control system in which the data subscription is registered.

Further comprising the step of controlling the line information collection device of the overhead power transmission line monitoring system, the step of controlling the line information collection device comprises the steps of receiving a control subscription request message from the control system, if the control system is registered, control subscription The step of registering, generating a control resource including control information based on the control resource creation request message of the control system in which the control subscription is registered, and transmitting the control request message including the control information of the control resource to the line information collecting device and receiving a control response message from the line information collecting device.

According to the present invention, the overhead power transmission line monitoring system and method has the effect of monitoring and diagnosing the overhead power transmission line with low power by collecting the line information of the Internet of Things standard through low-power-based long-distance wireless communication.

In addition, the overhead power transmission line monitoring system and method collects line information of the IoT standard through low-power-based long-distance wireless communication, and monitors and diagnoses the overhead power transmission line using the line information through the control system to ensure continuity of inspection. And it has the effect of monitoring and diagnosing overhead power transmission lines in real time while minimizing inspection costs by improving efficiency.

In addition, the overhead power transmission line monitoring system and method enable real-time monitoring and diagnosis, so that facilities of the overhead power transmission line can be efficiently managed and facility failures can be minimized.

1 and 2 are views for explaining an overhead power transmission line monitoring system according to an embodiment of the present invention.
3 and 4 are diagrams for explaining the line information collecting apparatus of FIG. 2 .
FIG. 5 is a diagram for explaining the gateway of FIG. 2;
6 is a view for explaining the communication control server of FIG.
7 is a flowchart illustrating a method for monitoring an overhead power transmission line according to an embodiment of the present invention.
8 and 9 are flowcharts for explaining the line information collecting device registration step of FIG.
10 and 11 are flowcharts for explaining the control system registration step of FIG.
12 is a flowchart for explaining the line information registration step of FIG.
13 and 14 are flowcharts for explaining the line information providing step of FIG.
15 is a flowchart for explaining a control step of the overhead power transmission line monitoring system of FIG.

Hereinafter, the most preferred embodiment of the present invention will be described with reference to the accompanying drawings in order to describe in detail enough that a person of ordinary skill in the art to which the present invention pertains can easily implement the technical idea of the present invention. . First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, an overhead power transmission line monitoring system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 are diagrams for explaining an overhead power transmission line monitoring system according to an embodiment of the present invention. 3 and 4 are diagrams for explaining the device for collecting line information of FIG. 2 , FIG. 5 is a diagram for explaining the gateway of FIG. 2 , and FIG. 6 is a diagram for explaining the communication control server of FIG. 2 .

1 and 2 , the overhead power transmission line monitoring system includes a line information collection device 100 , a gateway 200 , a communication control server 300 , an IoT common platform 400 , a control system 500 and a mobile and a system 600 .

The line information collection device 100 collects line information from a power transmission facility and transmits the line information to the communication control server 300 through the gateway 200 . When the LoRaWAN protocol, which is a low-power wide area network, is used, a communication standard protocol defined by the LoRa Alliance is followed between the line information collection device 100 and the communication control server 300 .

The communication control server 300 converts the line information into a data transmission format of oneM2M. That is, the communication control server 300 converts line information, which is an application data format of LoRaWAN, into a data transmission format of oneM2M.

The communication control server 300 and the IoT common platform 400 are interlocked with oneM2M standard interface Mca. The line information stored in the IoT common platform 400 may be simultaneously provided to the control system 500 and the mobile system 600 . The control system 500 and the mobile system 600 receive line information by interworking with the IoT common platform 400 using the Mca interface.

In addition, the procedure for sending the control signal to the line information collecting device 100 is also possible using the Mca interface of oneM2M to transmit the control signal.

The line information collection device 100 collects line information of an overhead power transmission line. The track information collecting apparatus 100 collects track information including at least one of pylon inclination information, wire tension value, wire vibration value, triaxial wire acceleration, insulator leakage current, weather information, and image information. The line information collection device 100 transmits the line information to the communication control server 300 through the gateway 200 . At this time, the line information collection apparatus 100 transmits the line information collected according to the transmission period to the communication control server 300 .

Referring to FIG. 3 , the line information collection device 100 is configured to include a diagnostic sensor 110 and a sensor management terminal 120 . In this case, the line information collection device 100 may be configured with one diagnostic sensor 110 and one sensor management terminal 120 , or may include a plurality of diagnostic sensors 110 and one sensor management terminal 120 . have.

The diagnostic sensor 110 is installed in a pylon, a power transmission cable, an insulator, etc. constituting an overhead power transmission line, and generates line information including information related to power transmission equipment. Referring to FIG. 3 , the diagnostic sensor 110 may include a tilt sensor, a tension sensor, a vibration sensor, a galloping sensor, a leakage current sensor, a weather sensor, an image camera, and the like.

The inclination sensor detects pylon inclination information including the inclination of the pylon member, the vertical displacement of the pylon, and the horizontal displacement. The inclination sensor is a sensor capable of measuring the angle and vibration of the pylon, and may be composed of a plurality of sensors. At this time, the inclination information includes angle and vibration, and is used as information for confirming the displacement progress result of the pylon.

The tension sensor detects the wire tension value of the power transmission cable. The tension sensor is installed in the fittings to measure the wire tension value for the power transmission cable between the pylon and the pylon. The tension sensor detects a wire tension value of approximately 0tf° to 10tf. At this time, the wire tension value is used as information for checking the tension state of the power transmission cable, diagnosing the ear canal and safety factor.

The vibration sensor detects the vibration value of the wire of the power transmission cable. The vibration sensor is installed on the metal fittings and detects the vibration value of the electric wire of the power transmission cable installed on the pylon. At this time, the electric wire vibration value is used as information for measuring the shaking of the power transmission cable due to the influence of wind and diagnosing whether an accident has occurred using this.

Galloping sensor detects 3-axis wire acceleration. The galloping sensor is installed on the power transmission cable to detect the acceleration of the three-axis wire. Here, the 3-axis wire acceleration is used as information for diagnosing the galloping of the power transmission cable by checking the transverse state (angle).

The leakage current sensor detects the insulator leakage current. The leakage current sensor is installed on the insulator to detect the leakage current generated from the insulator. At this time, the insulator leakage current is used as information for diagnosing the insulation performance of the insulator by using the leakage current variation.

The weather sensor detects weather information such as wind direction, wind speed, temperature, and humidity around the pylon. At this time, the weather information is used as basic information for self-diagnosis based on artificial intelligence based on the facility weather data pictorial.

The video camera detects video information captured around the pylon. Video information is used as information for monitoring on-site situations in emergencies such as galloping, forest fires, soil loss, and breakdowns.

The sensor management terminal 120 collects line information from the diagnostic sensor 110 . The sensor management terminal 120 collects line information from one or more diagnostic sensors 110 through the wired communication interface 130 . In this case, the wired communication interface 130 is an example of the UART interface 132 , the RS-232 interface 134 , the RS-485 interface 136 , and the like. The sensor management terminal 120 may include a plurality of wired communication interfaces 130 when connected to a plurality of diagnostic sensors 110 .

The sensor management terminal 120 transmits line information to the communication control server 300 according to a transmission period. The sensor management terminal 120 transmits line information through the wireless communication interface 150 . Here, as an example, the wireless communication interface 150 is a LoRa (LoRaWAN) interface 152 , an NB-IoT interface 154 , and the like.

The sensor management terminal 120 transmits line information to the communication control server 300 via the gateway 200 when using the LoRa (LoRaWAN) interface 152 . The sensor management terminal 120 directly transmits the line information to the communication control server 300 without going through the gateway 200 when using the NB-IoT interface 154, which is a mobile communication network.

For example, referring to FIG. 4 , the sensor management terminal 120 includes a UART interface 132 , an RS-232 interface 134 , an RS-485 interface 136 , a current (4-20mA) interface 138 , and a central It may be configured to include a processing unit 140 , a LoRa (LoRaWAN) interface 152 , and an NB-IoT interface 154 . At this time, the sensor management terminal 120 includes a power source such as a primary battery 160 , a secondary battery 180 charged through a solar panel 170 , and a power management module 190 , the sensor management terminal 120 and Power may be supplied to the diagnostic sensor 110 .

The gateway 200 receives the line information from the line information collection device 100 through the wireless communication interface 150 and transmits it to the communication control server 300 . In this case, the gateway 200 may be omitted when the line information collection device 100 directly transmits the line information to the communication control server 300 through a mobile communication network (ie, NB-IoT).

5, the gateway 200 includes a LoRa (LoRaWAN) interface 220 for receiving line information, an Ethernet interface 240 for transmitting line information to the communication control server 300, and a mobile communication (LTE) interface ( 260 ), the LoRa (LoRaWAN) interface 220 may be configured to include a central processing unit 280 linking the line information received through one of the Ethernet interface 240 and the mobile communication (LTE) interface 260 .

The communication control server 300 manages the sensor diagnosis and communication terminal, and the gateway 200 . The communication control server 300 collects line information from the gateway 200 . The communication control server 300 generates overhead line information by processing the collected line information according to the standard of the IoT common platform 400 . The communication control server 300 transmits overhead line information to the IoT common platform 400 .

Referring to FIG. 6 , the communication control server 300 includes an authentication processing unit 320 that manages network access authentication of the gateway 200 and the line information collecting device 100 , and a line information collecting device 100 connected to the gateway 200 . ), the connection management unit 340 for managing, the security processing unit 360 for processing end-to-end security between the track information collection device 100 and the control system 500, and interworking for the connection with the IoT common platform 400 The processing unit 380 may be included. At this time, the interworking processing unit 380 converts line information, which is a RoLa (RoRaWAN) application data format, into overhead line information, which is a data transmission format of oneM2M, and transmits the converted line information to the IoT common platform 400 .

The IoT common platform 400 collects overhead line information from the communication control server 300 . The IoT common platform 400 collects overhead line information based on the international standard oneM2M, and transmits the overhead line information to the control system 500 and the mobile system 600 . At this time, the IoT common platform 400 provides the overhead line information only to the pre-registered control system 500 and the mobile system 600 . To this end, the IoT common platform 400 registers and manages the control system 500 and the mobile system 600 .

The control system 500 provides a control interface using overhead line information to the controller in conjunction with the IoT common platform 400 . The control system 500 registers with the IoT common platform 400 through an application registration function.

When the registration is completed, the controller can access the Internet of Things common platform through the control system 500 to search for overhead line information. The control system 500 provides overhead line information to the controller through the control interface.

The control system 500 groups and collectively manages the equipment constituting the overhead power transmission line monitoring system, and controls each equipment. In this case, the equipment may include the line information collection device 100 , the gateway 200 , the communication control server 300 , and the IoT common platform 400 . The control system 500 may receive, store, manage, and analyze overhead line information through a subscription application. The control system 500 transmits an event message according to the event triggering rule through the analysis of overhead line information, and checks the status of the remote monitoring device registered in the IoT common platform 400 through the management of the overhead power transmission line monitoring system and provides application and service version management, location information provision and management functions. The control system 500 communicates with the IoT common platform 400 through standard communication network interworking to which end-to-end security is applied in order to perform all the functions described above.

The mobile system 600 provides a control interface using processing detection data to the user in conjunction with the IoT common platform 400 .

Hereinafter, a method for monitoring an overhead power transmission line according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 7 is a flowchart illustrating a method for monitoring an overhead power transmission line according to an embodiment of the present invention. 8 and 9 are flowcharts for explaining the registration step of the line information collecting device 100 of FIG. 7 , FIGS. 10 and 11 are flowcharts for explaining the registration step of the control system 500 of FIG. 7 , and FIG. 12 is a flowchart for explaining the line information registration step of FIG. 7, FIGS. 13 and 14 are flowcharts for explaining the line information providing step of FIG. 7, and FIG. 15 describes the overhead power transmission line monitoring system control step of FIG. This is a flow chart for

Referring to FIG. 7 , the overhead power transmission line monitoring method includes a line information collection device 100 registration step (S100), a control system 500 registration step (S200), a line information registration step (S300), and a line information providing step (S400). ), including an overhead power transmission line monitoring system control step (S400).

In the line information collecting device 100 registration step ( S100 ), the line information collecting device 100 is registered for the overhead power transmission line monitoring. In the line information collecting device 100 registration step (S100), one or more line information collecting devices 100 are registered in the IoT common platform 400 .

8 and 9 , the line information collection apparatus 100 transmits a device registration request message to the IoT common platform 400 ( S105 ).

The IoT common platform 400 receives the device registration request message, performs a registration process, and then transmits the registration result to the track information collection apparatus 100 ( S110 ).

Upon receiving the normal registration result response (S115; Yes), the track information collection apparatus 100 transmits a device management object creation request message to the IoT common platform 400 (S120). The track information collection device 100 transmits a management object creation request message for requesting creation of a management object resource used for equipment management in the IoT common platform 400 .

The IoT common platform 400 creates a management object resource based on the management object creation request message and then transmits the creation result to the track information collection device 100 ( S125 ).

Upon receiving the management object creation completion response (S130; Yes), the track information collection apparatus 100 transmits a device information generation request message to the IoT common platform 400 (S135). The track information collection apparatus 100 transmits a device information generation request message to store the device information in the IoT common platform 400 .

The IoT common platform 400 generates device information based on the device information generation request message and then transmits the generation result to the line information collection apparatus 100 ( S140 ).

Upon receiving the device information generation completion response (S145; Yes), the line information collection apparatus 100 transmits a firmware information generation message to the IoT common platform 400 (S150).

The IoT common platform 400 generates firmware information based on the firmware information generation message and then transmits the firmware generation result to the line information collection device 100 ( S155 ).

Upon receiving the firmware generation completion response (S160; Yes), the line information collection device 100 transmits a software information generation request message to the IoT common platform 400 (S165).

The IoT common platform 400 generates software information based on the software information generation request message and then transmits the generation result to the line information collection device 100 ( S170 ). The IoT common platform 400 registers and manages the line information collection device 100 through the above-described process.

In the control system 500 registration step (S200), the control system 500 for using the line information of the overhead power transmission line is registered. In the control system 500 registration step ( S200 ), one or more control systems 500 are registered in the IoT common platform 400 .

10 and 11 , the control system 500 transmits a system service registration request message to the IoT common platform 400 (S205).

The IoT common platform 400 registers the control system 500 based on the system service registration request message and then transmits the registration result to the control system 500 (S210).

Upon receiving the system service registration completion response (S215; Yes), the control system 500 transmits a service management object creation request message to the IoT common platform 400 (S220). The control system 500 requests creation of a management object resource to the service IoT common platform 400 through transmission of a service management object creation request message.

The IoT common platform 400 creates a service management object resource based on the service management object creation request message and then transmits the creation result to the control system 500 ( S225 ).

Upon receiving the service management object creation completion response (S230; Yes), the control system 500 transmits a service information generation request message (S235). The control system 500 requests generation of service information to the IoT common platform 400 through transmission of a service information generation request message.

The IoT common platform 400 generates service information based on the service information generation request message and then transmits the generation result to the control system 500 (S240).

Upon receiving the service information generation completion response (S245; Yes), the control system 500 transmits a software information generation request message to the IoT common platform (S250).

The IoT common platform 400 generates software information based on the software information generation request message and then transmits the generation result to the control system 500 (S255). The IoT common platform 400 registers and manages the control system 500 through the above-described process.

In the line information registration step ( S300 ), the line information collected by the line information collection device 100 is registered in the IoT common platform 400 . In this case, the line information collection device 100 may transmit the line information to the IoT common platform 400 through the gateway 200 and the communication control server 300 . The line information collection apparatus 100 may transmit line information to the IoT common platform 400 only through the communication control server 300 .

Referring to FIG. 12 , the track information collection device 100 transmits a storage resource registration request message for storing track information to the IoT common platform 400 ( S310 ). At this time, the track information collection autonomous unit transmits the storage resource registration request message only once for the first time.

The IoT common platform 400 creates a storage resource based on the storage resource registration request message (S320). In this case, the IoT common platform 400 creates a storage resource when the track information collection device 100 that has transmitted the storage resource registration request is registered in step S100. The IoT common platform 400 transmits the storage resource generation result to the line information collection device 100 .

Upon receiving the storage resource creation completion response (S330; Yes), the track information collection device 100 transmits a data resource creation request message to the IoT common platform 400 (S340). At this time, the line information collection device 100 transmits a data resource creation request message including the collected line information.

The IoT common platform 400 creates a data resource based on the data resource creation request message (S350). The IoT common platform 400 creates a data resource in the storage resource. In this case, the IoT common platform 400 creates a data resource by using the line information included in the data resource creation request message. The IoT common platform 400 transmits the data resource generation result to the line information collection device 100 .

The line information collection device 100 transmits the line information to the IoT common platform 400 by periodically repeating steps S340 and S350 , and the common Internet of Things platform 400 stores the received line information.

In the line information providing step ( S400 ), the track information registered in the step S300 is provided to the control system 500 . In the line information providing step ( S400 ), line information is provided according to an inquiry request or a subscription request of the control system 500 .

Referring to FIG. 13 , the step of providing line information ( S400 ) may include a data inquiry step.

The control system 500 transmits a data inquiry request message to the IoT common platform 400 (S411). In this case, the control system 500 transmits a data inquiry request message including a data inquiry condition.

If the control system 500 that has transmitted the data inquiry request message is registered in step S200 (S413; Yes), the IoT common platform 400 sends the data inquiry result to the control system 500 based on the data inquiry request message is transmitted (S415). The IoT common platform 400 detects line information that satisfies the data inquiry condition included in the data inquiry request message. The IoT common platform 400 transmits the data inquiry result including the detected line information to the control system 500 .

On the other hand, the IoT common platform 400 transmits a data provision impossible message if the control system 500 that has transmitted the data inquiry request message is in an unregistered state (S417).

Referring to FIG. 14 , the step of providing line information ( S400 ) may further include a data subscription step.

The control system 500 transmits a subscription request message to the IoT common platform 400 to receive line information in real time (S421). That is, the control system 500 transmits a subscription request message to the IoT common platform 400 to receive the line information in real time with respect to the data resource generation of the line information collection device 100 .

If the control system 500 that has transmitted the subscription request message is registered in step S200 (S422; Yes), the IoT common platform 400 registers the data subscription and then transmits the data subscription completion message to the control system 500 do (S423).

The IoT common platform 400 transmits the unsubscribe message to the control system 500 if it is not the registered control system 500 (S424).

When line information is newly registered from the line information collection device 100 (S425; Yes), the IoT common platform 400 transmits a line information registration alarm to the subscription-registered control system 500 (S426). The IoT common platform 400 may transmit a line information registration alarm including newly registered line information to the control system 500 . The control system 500 transmits a response to the line level registration alarm.

The overhead power transmission line monitoring system control step S500 is a step of controlling the line information collection device 100 in the control system 500 . At this time, although FIG. 7 illustrates that the overhead power transmission line monitoring system control step (S500) is performed after step S300 or step S400, the present invention is not limited thereto and may be performed simultaneously with or before step S300 and step S400.

Referring to FIG. 15 , the control system 500 transmits a control subscription request message to the IoT common platform 400 for control of the line information collection device 100 ( S505 ). At this time, the control system 500 transmits the control subscription request message only once for the first time.

If the control system 500 that has transmitted the control subscription request message is registered in step S200 (S510; Yes), the IoT common platform 400 registers the control subscription and sends a control subscription completion message to the control system 500 It transmits (S515).

The IoT common platform 400 transmits a control subscription impossible message to the control system 500 if it is not the registered control system 500 (S520).

The control system 500 transmits a control resource creation request message to the IoT common platform 400 for control of the line telegram collection device (S525). The control system 500 transmits a control resource creation request message including control information.

The IoT common platform 400 creates a control resource based on the control resource creation request message (S530). The IoT common platform 400 creates a control resource and stores the control request included in the control resource creation request in the control resource. The IoT common platform 400 generates a control resource and then transmits the generated result to the control system 500 .

The IoT common platform 400 transmits a control request message to the line information collection device 100 (S535). That is, the IoT common platform 400 generates a control request message including the control request stored in the control resource and transmits it to the corresponding line information collection device 100 .

The track information collection device 100 transmits a control response message to the IoT common platform 400 after performing a specific operation or flow based on the control request message (S540).

The IoT common platform 400 transmits a control result notification to the control system 500 based on the control response message (S545). The control system 500 transmits a response to the control result notification to the IoT common platform 400 .

As described above, the overhead power transmission line monitoring system and method has the effect of monitoring and diagnosing the overhead power transmission line with low power by collecting the line information of the IoT standard through low-power-based long-distance wireless communication.

In addition, the overhead power transmission line monitoring system and method collects line information of the IoT standard through low-power-based long-distance wireless communication, and monitors and diagnoses the overhead power transmission line using the line information through the control system, thereby ensuring continuity of inspection. And it has the effect of monitoring and diagnosing overhead power transmission lines in real time while minimizing inspection costs by improving efficiency.

In addition, the overhead power transmission line monitoring system and method enable real-time monitoring and diagnosis, so that facilities of the overhead power transmission line can be efficiently managed and facility failures can be minimized.

Although the preferred embodiment according to the present invention has been described above, it can be modified in various forms, and those of ordinary skill in the art can make various modifications and modifications without departing from the scope of the claims of the present invention. It is understood that it can be implemented.

100: line information collecting device 110: diagnostic sensor
120: sensor management terminal 130: wired communication interface
132: UART interface 134: RS-232 interface
136: RS-485 interface 138: Current (4-20mA) interface
140: central processing unit 150: wireless communication interface
152: LoRa (LoRaWAN) interface 154: NB-IoT interface
160: primary cell 170: solar panel
180: secondary battery 190: power management module
200: Gateway 220: LoRa (LoRaWAN) interface
240: Ethernet interface 260: Mobile communication (LTE) interface
280: central processing unit 300: communication control server
320: authentication processing unit 340: connection management unit
360: security processing unit 380: interworking processing unit
400: common IoT platform 500: control system
600: mobile system

Claims (20)

a line information collecting device installed in a power transmission facility included in an overhead power transmission line to collect line information;
a gateway for collecting line information from the line information collecting device through a low-power wide area network;
a communication control server that collects line information from one of the line information collection device and the gateway, and converts the line information into overhead line information of a common Internet of Things standard;
an IoT common platform for collecting and storing overhead line information from the communication control server; and
Including a control system for inquiring and subscribing to overhead line information from the IoT common platform,
The communication control server,
an authentication processing unit for managing network access authentication of the gateway and the line information collecting device;
a connection management unit for managing a line information collection device connected to the gateway;
a security processing unit for processing end-to-end security between the line information collection device and the control system; and
An overhead transmission line monitoring system comprising an interlocking processor that converts line information, which is a RoRaWAN application data format, into overhead line information, which is a data transmission format of oneM2M, and transmits the converted line information to the IoT common platform.
According to claim 1,
The line information collection device transmits the line information to the gateway using LoRaWAN, and transmits the line information to the communication control server using a mobile communication network. According to claim 1,
The line information collection device,
a diagnostic sensor for detecting line information including at least one of pylon inclination information, wire tension value, electrical vibration value, three-axis wire acceleration, insulator leakage current, weather information, and image information; and
and a sensor management terminal that collects line information from the diagnostic sensor through a wired communication interface and transmits the line information to one of the gateway and the communication control server through a wireless communication interface. 4. The method of claim 3,
The diagnostic sensor is
a tilt sensor installed in the transmission pylon to detect the pylon tilt information;
a tension sensor installed on the power transmission cable to detect a wire tension value;
a vibration sensor that is installed on the power transmission cable and senses the electrical vibration value;
Galloping sensor installed on power transmission cable to detect 3-axis wire acceleration;
a leakage current sensor installed on the insulator to detect the insulator leakage current;
a weather sensor installed on a transmission pylon to detect weather information; and
An overhead power transmission line monitoring system comprising one or more of the video cameras that detect video information taken around the pylon. 5. The method of claim 4,
The sensor management terminal is
a wired communication interface connected to the diagnostic sensor as one of a UART interface, an RS-232 interface, an RS-485 interface, and a current interface, and collecting line information from the diagnostic sensor;
a wireless communication interface for transmitting the line information to the gateway through a LoRaWan interface and transmitting the line information to the communication control server through an NB-IoT interface; and
and a central processing unit controlling the wireless communication interface to transmit line information to one of the gateway and the communication control server. According to claim 1,
The gateway is
An overhead power transmission line monitoring system for collecting line information from the line information collecting device through a LoRaWAN interface and transmitting the line information to the communication control server through one of Ethernet and a mobile communication network. According to claim 1,
The communication control server is interlocked with the IoT common platform through an Mca interface, and converts the line information into overhead line information in the oneM2M data transmission format of the IoT common standard and transmits it to the IoT common platform. . delete According to claim 1,
The IoT common platform collects and manages overhead line information in a oneM2M data transmission format from the communication control server, and transmits overhead line information corresponding to the inquiry information to the control system when a previously registered control system inquiry is requested, An overhead power transmission line monitoring system that transmits newly registered overhead line information to the control system upon application for subscription of a control system that has been recorded. In the overhead power transmission line monitoring method using the overhead power transmission line monitoring system,
registering a line information collection device and a control system in the IoT common platform;
registering the line information collected by the line information collecting device registered in the registering to the IoT common platform; and
Comprising the step of providing the line information based on the request of the control system registered in the registering step,
The step of registering the line information includes creating a storage resource of the line information collecting device based on a storage resource registration request message,
In the generating of the storage resource, if the line information collecting device that transmitted the storage resource registration request message is registered, the overhead power transmission line monitoring method of generating the storage resource of the line information collecting device.
11. The method of claim 10,
The registering includes registering a line information collecting device installed in a power transmission facility,
The step of registering the line information collection device comprises:
device registration of the line information collecting device;
Generating a management object resource of the line information collecting apparatus that is normally registered in the device registration step;
generating device information of the line information collecting apparatus when the creation of the management object is completed;
generating firmware information of the line information collecting device; and
The overhead power transmission line monitoring method comprising the step of generating software information of the line information collection device. 12. The method of claim 11,
The registering includes registering a control system using the line information collected by the line information collecting device,
The step of registering the control system,
registering a system service of the control system;
creating a service management object resource of the control system;
generating service information of the control system; and
The overhead power transmission line monitoring method comprising the step of generating software information of the control system. delete 11. The method of claim 10,
The registering of the line information includes generating a data resource including the line information based on a data resource registration request message,
The data resource registration request message is an overhead power transmission line monitoring method including line information. 11. The method of claim 10,
The step of providing the line information includes providing previously registered line information to the control system based on an inquiry request. 16. The method of claim 15,
The step of providing the registered line information includes:
Receiving a data inquiry request message including a data inquiry condition from the control system; and
The control system is registered state, and the overhead power transmission line monitoring method comprising the step of detecting the line information that satisfies the data inquiry condition and transmitting the information to the control system. 11. The method of claim 10,
The providing of the line information includes providing newly registered line information to the control system based on a subscription request. 18. The method of claim 17,
The step of providing the newly registered line information,
Receiving a subscription request message from the control system;
registering data subscription if the control system is registered; and
When the line information is newly registered, the overhead power transmission line monitoring method comprising the step of transmitting a line information registration alarm to the control system in which the data subscription is registered. 11. The method of claim 10,
The overhead power transmission line monitoring method further comprising the step of controlling the line information collecting device of the overhead power transmission line monitoring system. 20. The method of claim 19,
The step of controlling the line information collection device comprises:
Receiving a control subscription request message from the control system;
If the control system is registered, registering a control subscription:
generating a control resource including control information based on a control resource creation request message of a control system in which a control subscription is registered;
transmitting a control request message including control information of the control resource to a line information collecting device; and
and receiving a control response message from the line information collecting device.

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