KR101774563B1 - System for realtime remote diagnosing underground power distribution line - Google Patents

Abstract

The present invention relates to a system for remotely diagnosing an underground power distribution line in real time. Power line communications devices are arranged on a manhole bifurcation, a ground switch device, a ground bank, and a power entry line of a household. Therefore, the system can remotely diagnose an electric accident, caused by current leakage, overcurrent, power consumption, current theft, and disconnection of the underground power distribution line, in real time. A manager for each section can rapidly check or maintain and repair a relevant underground power distribution line by receiving condition information (or processing information) of the underground power distribution line through a mobile information terminal. When the underground power distribution line is overheated, the underground power distribution line can be immediately cooled. In addition, when a fire breaks out on the underground power distribution line, damage can be minimized by immediately extinguishing the fire. Construction costs can be significantly reduced even without increasing the width of a power device tunnel. Moreover, as the width of a path does not become narrow, a manager and a worker can move in a convenient manner. Damage, caused by overheating and a fire, is minimized by preventing heat and the fire from spreading by blocking a fire occurrence section from the other sections. Accordingly, the underground power distribution line can be maintained in a safer manner.

Description

[0001] The present invention relates to a system for real-time remote diagnosis of underground power distribution lines,

The present invention relates to a real-time remote diagnosis system for an underground power distribution line, and more particularly, to a remote diagnosis system for an underground power distribution line in real time, as well as to promptly cool the underground power distribution line when it is overheated, It is possible to minimize the damage by instantly extinguishing when a fire occurs in the underground distribution line, as well as to greatly reduce the construction cost without enlarging the width of the power tunnel, and the width of the passage is not narrowed, And the worker's movement is facilitated. In addition, it is possible to prevent the spread of heat and fire by blocking the heat and fire occurrence section to the undeveloped section, minimize the damage caused by overheating and fire, and to keep the underground distribution line more securely. To a real-time remote diagnosis system.

Generally, in order to supply electric power to electric power customers in urban areas, it has been widely used to set electric poles at regular intervals on the road side, and to install electric power distribution lines by using electric wires and insulators.

However, there is a problem that such a processing distribution line is entangled with a complicated distribution line, and there is a risk of a short circuit or a short-circuit accident, and it is vulnerable to a typhoon or rainfall.

In Korea, for the first time in 1973, the underground project for distribution lines started and is widely adopted.

Underground distribution lines are divided into direct sales type, duct type and power type according to the installation type.

The direct soldering method is to install a cable in a though for protection of a power distribution line, fill the sand between the trough and the cable, and cover the lid. The depth of burial in the direct-sold-in type is not less than 1 ~ 2m in places subject to the pressure of heavy materials such as vehicles in accordance with the Electrical Installation Technical Standard, and not less than 60cm in other places. However, Respectively.

The piping system is a system in which a pipeline and a manhole are installed, a cable is drawn into a pipeline, and the pipeline is installed in a manhole. Pipelines are applied to places with high traffic volume in urban areas where roads can not be maintained for a long period of time, such as direct sales, and pipelines and manholes are installed in consideration of problems with re-excavation in areas where future expansion is expected.

Power outdated is a tunnel in which a worker and equipment can pass through the ground, and a support (shelf) is installed on both sides of the tunnel to support the cable on a support (shelf). This method is also referred to as a cantilever method or a cantonal method. The outdated power is advantageous in the case where the number of cables is more than 20 or in a region where a multi-line is required such as a substation withdrawal part, and when using a cable exceeding an ultra-high voltage, convenience of maintenance, maintenance and inspection and heat dissipation are widely used.

Such underground distribution lines are frequently caused by electric leakage, electric shock, and fire accidents due to faulty distribution lines, disconnection due to excavation work, damage due to overcurrent, and connection failure.

Therefore, in order to prevent trauma by underground distribution line during excavation work, it is detected whether or not there is an excavation site through the jurisdiction area of the fielder. When an underground distribution line failure occurs, power is supplied through an automatic switchgear And responds to accidents in such a way that a field worker dispatches and repairs.

However, this management method can not respond quickly to real-time awareness of the accident, and there is also a problem that the thief power can not be detected.

As a prior art for solving such conventional problems, Korean Patent Registration No. 10-0697859 (Registered on Mar. 14, 2007) entitled " Real-time Remote Diagnosis System with Underground Distribution Line Using Power Line Communication " Have been disclosed.

However, the prior art 1 has a disadvantage in that it is easy to cut out the necessary information stored in the memory because it is easy to access the memory, which is very vulnerable to security.

As a prior art to overcome the problems of the prior art 1, Korean Patent No. 10-1476161 (registered on Dec. 18, 2014) entitled " Real-time Remote Diagnosis System for Underground Distribution Line " Lt; / RTI >

However, in the prior art 2, there is a problem that the damage due to the fire can not be minimized because a system for instantly cooling and extinguishing an underground distribution line is overheated or a fire occurs.

As a prior art for solving the problem of the prior art 2, a real-time remote diagnosis system of underground distribution lines (hereinafter referred to as " Prior Art 3 ") of Korean Registered Patent No. 10-1574226 Measures the temperature of the underground distribution line and injects the coolant for cooling the underground distribution line when the measured temperature is higher than the first set temperature and injects the extinguishing agent for the fire suppression when the measured temperature is higher than the second set temperature Thereby allowing the underground distribution line to be safely maintained by cooling or extinguishing immediately when the underground distribution line is overheated or a fire occurs.

However, in the prior art 3, the cooling gas injection means and the extinguishing agent injection means are installed on the guide rail installed on one side of the shelf installed on both sides of the power tunnel tunnel, and on the moving platform moving along the guide rail. Since the width of the power tunnel must be as wide as the width of the guide rail and the moving platform, not only the amount of material for constructing the power tunnel is increased, but also the number of the guide rail, moving platform, cooling gas injection means, There is a problem that construction cost is increased. When the width of the power tunnel is not widened, the width of the passage formed between the side rails by the width of the guide rail and the moving platform becomes narrow, There is a problem.

Therefore, it is possible to remotely diagnose the underground distribution line in real time, instantly cool the underground distribution line in case of overheating, minimize the damage by instantly extinguishing when a fire occurs in the underground distribution line, There is a demand for development of a technology that can greatly reduce the construction cost without widening the width of the tunnel and make the width of the passageway narrow so that the movement of the manager and the operator is made convenient.

As a prior art based on this demand, Korean Patent No. 10-1742560 (registered on May 27, 2016) discloses a real-time remote diagnosis system for underground distribution lines (hereinafter, referred to as "Prior Art 4").

However, in the prior art 4, a power line communication device is provided in a manhole branch point, a ground switch, a ground bank, and a power line communication line of a customer, so that electric safety accidents caused by electric leakage, overcurrent, power consumption, And the divisional manager can receive the status information (or the processing information) of the underground distribution line through the portable information terminal, so that the underground distribution line can be quickly inspected or maintained and the underground distribution line can be overheated It is possible to minimize the damage by instantly extinguishing when the fire in the underground distribution line is extinguished. In addition, the construction cost can be greatly reduced without enlarging the width of the power tunnel, The width of the door is not narrowed, and the movement of the manager and the operator is made convenient. And there.

However, in the prior art 4, the cooling and extinguishing device moves the power tunnel in the longitudinal direction to cool the overheated part, and also extinguish the part where the fire is generated. If the distance of the generated part is too long, there is a problem that the cooling and extinguishing effect of the overheated part and the fire is spread before the cooling and extinguishing by the cooling and extinguishing device, and the damage is increased.

Therefore, it is possible to cool the overheated part of the underground power distribution line and to extinguish the fire. Also, it is possible to greatly reduce the construction cost of the tunnel without enlarging the width of the power section tunnel, and the width of the passage can not be narrowed, It is required to develop a technique for preventing the heat and fire from spreading before the cooling and extinguishing by the fire extinguishing apparatus, thereby minimizing the damage.

Korean Registered Patent No. 10-0697859 (Registered on Mar. 14, 2007) "Real-time remote diagnosis system with underground distribution line using power line communication" Korea Registered Patent No. 10-1476161 (Registered on Dec. 18, 2014) "Real-time remote diagnosis system of underground distribution line" Korean Registered Patent No. 10-1574226 (Registered on November 27, 2015) "Real-time Remote Diagnosis System of Underground Distribution Line"

Accordingly, it is an object of the present invention to provide a system and method for remotely diagnosing underground distribution lines in real time, instantaneously cooling the underground distribution lines when they are overheated, and minimizing damage by instantly extinguishing a fire in underground distribution lines In addition, it is possible to greatly reduce the construction cost without enlarging the width of the power tunnel and to make the width of the passageway not narrow, thereby facilitating the movement of the manager and the operator, And to provide a real-time remote diagnosis system of an underground power distribution line which can prevent the spread of heat and fire by minimizing the damage caused by overheating and fire and to keep the underground distribution line more securely.

According to an aspect of the present invention, there is provided a power line communication apparatus provided in a power line of a manhole branch point, a ground switch, a ground bank, and a customer, The amount of electric current, the amount of overcurrent, the amount of electric power used, the amount of electric current of thieves, or the disconnection state based on the state information, wherein the power line communication device is a CT (Current Transformer) A connection part connected to the power line of the manhole branch point, the ground switch, the ground bank or the customer, constituting a ZCT (video converter) circuit; A power line communication modem unit for performing power line communication with the management server; A current amount detecting unit for measuring a current amount of a power line connected to the connection unit; A remote diagnosis control unit for controlling the power line communication modem unit and the current amount detection unit; And a power supply unit for converting and supplying a voltage supplied from the power line to a power source necessary for the power line communication modem unit, the current amount detection unit, and the remote diagnosis control unit; Wherein the system further comprises a portable information terminal, and the management server is configured to transmit processing information based on the status information or the status information to the portable information terminal through a mobile communication company or a satellite; The power line communication modem unit includes a signal conversion module for determining an operation timing according to a clock pulse, a signal processing module for processing transmission / reception data input / output from the signal conversion module, and a transmission / And a coupler module for extracting and outputting only data, wherein the signal conversion module exchanges digitized transmission / reception data with a remote diagnosis control section, exchanges analogized transmission / reception data with the signal processing module, Amplifies data input from the module and outputs the amplified data to the coupler module, and outputs the data input from the coupler module to the signal conversion module; Wherein the remote diagnosis control unit further includes a memory and generates state information based on the amount of current received from the current amount detection unit, the state information being generated through a program stored in the memory; And the power line communication device is configured to transmit identification information capable of identifying the power line communication device together with the status information to a management server, the system comprising: The remote diagnosis system further includes a secret-type opening / closing means for transferring the state information generated and stored in the memory to the portable memory including the USB immediately when necessary, wherein the secret-type opening / A cam is formed at one side of the lower case, and the cam is connected to a rotation axis of a door that opens and closes an insertion port through which a USB can be inserted, Wherein the cam is opened and closed in accordance with the rotation direction of the cam, the cam is repeatedly formed with a convex portion and a concave portion at intervals of 90 degrees to control the driving of the movable member, and at one side of the cam in the radial direction, Wherein the stopper is provided so as to be rotatable about the stopping axis, And the other end is engaged with the coil spring, and the latching member is rounded along the shape of the cam in the longitudinal direction, and a circular protrusion is protruded in the middle of the length, and the latching shaft is engaged with the circular protrusion and the coil spring A switching element is disposed in the lower case at a position within the flow radius of the circular protrusion, the switching element includes a lever made of an elastic piece for stopping the driving of the movable member, (NC), and a second terminal (NO) are selectively turned on and off according to the operation of the button. The first terminal (NC) and the second terminal (NO) , And a movable member is provided at the center of the cam, and the movable member is an AC motor which rotates the cam in a predetermined direction so that the contact between the common terminal (COM) and the first and second terminals (NC, NO) A temperature sensor installed on each of a plurality of shelves installed on both side walls of the power tunnel tunnel to selectively open and close the opening and closing door; A longitudinal direction moving part provided on a bottom surface of the ceiling of the power tunnel; A lifting unit installed on the lower part of the moving part so as to be able to move up and down; A horizontal rotation part installed at a lower portion of the elevating part so as to be horizontally rotatable; A cooling gas spraying unit installed in the horizontal rotation unit to spray the cooling gas; And a fire extinguishing agent dispensing part installed in the horizontal rotating part and spraying a fire extinguishing agent, wherein the longitudinal direction moving part is disposed at a lower part of the ceiling of the power tunnel tunnel; Longitudinal guide means for guiding the guide in the longitudinal direction in the longitudinal direction; And a longitudinal direction driving means for driving the base in the longitudinal direction along the longitudinal direction guide means, wherein the elevation portion includes a platform support base to which the longitudinal direction is coupled to the base, and a platform positioned below the platform support base; A winding means mounted on the platform support; And a lifting rope wound around the winding means and having a lower end fixed to the platform, wherein the horizontal rotation unit includes a rotating table main body positioned at a lower portion of the platform; And a horizontal rotation motor installed at a central portion of the upper surface of the platform and connected to the upper surface of the main body through a platform of a horizontal rotation motor shaft, Wow; A cooling gas compressor fixed to a lower surface of the swivel base body; A cooling gas supply pipe connecting the cooling gas tank and the suction end of the cooling gas compressor; A cooling gas injection pipe connected to a discharge end of the cooling gas compressor; A cooling gas injection nozzle connected to the cooling gas injection pipe; And a cooling gas opening / closing valve provided between the cooling gas injection pipe and the cooling gas injection nozzle, wherein the fire extinguisher injection unit includes an extinguishing agent tank fixed to a lower surface of the main body; An extinguishing agent compressor fixed to a lower surface of the swivel body; An extinguishing agent supply pipe connecting the extinguishing agent tank and the suction end of the extinguishing agent compressor; An extinguisher spray pipe connected to a discharge end of the extinguishing medium compressor; An extinguishing agent spray nozzle connected to the extinguishing agent spray pipe; Further comprising a diffusion blocking device for blocking diffusion of heat and fire generated in the underground distribution line, wherein the diffusion blocking device comprises a fire extinguishing agent opening valve installed between the fire extinguishing agent injection pipe and the fire extinguishing agent injection nozzle, A blocker supply pipe installed vertically along the lower surface of the lowest one of the shelves, a barrier supply pipe vertically installed from the uppermost shelf of the plurality of shelves to the front of the lowermost shelf and having an upper end blocked and connected to the blocker supply pipe, A plurality of sidewall spraying tubes provided in parallel to the right side of the sidewall spraying tube and having an upper end and being connected to the blocker supply pipe and spraying a barrier agent toward the right side, A right-side spraying tube provided with a right-side spraying hole; A left-side spraying pipe connected to the blocker supply pipe and having a plurality of left-side spraying holes for spraying a blocking agent toward the left side, and a sidewall-direction spraying pipe, a right-direction spraying pipe, and a left- Wherein the sidewall-direction spraying tube, the right-direction spraying tube, and the left-sided spraying tube are arranged at a predetermined distance from each other at a position where the temperature sensor is installed Wherein the injection direction control valve is constituted by a 4-port 4-position solenoid valve, the 4-port is formed at one side and has an inlet port through which the blocking agent supply pipe is connected, 1 outflow port, a second outflow port to which the rightward directional injection pipe is connected, and the left directional injection pipe And the fourth position is a position in which the inlet port, the first outlet port, the second outlet port, and the third outlet port are both closed, and the blocking agent is injected from the sidewall spraying pipe, the rightward spraying pipe and the leftwardly spraying pipe, And a second position in which the first outlet port and the second outlet port are connected to the inlet port so that the blocking agent is injected from the sidewall direction injection pipe and the right direction injection pipe, And a third position where the third outflow port is connected to the inflow port to inject the blocking agent from the sidewall direction injection pipe and the left direction injection pipe and a third position in which the first outflow port and the second outflow port and the third outflow port are both connected to the inflow port And a fourth position in which the barrier agent is sprayed from the sidewall direction spraying pipe, the right direction spraying pipe and the left direction spraying pipe.

According to the real-time remote diagnosis system of the underground distribution line of the present invention, the power line communication device is provided in the power line of the manhole branch point, the ground switch, the ground bank and the customer, It is possible to perform remote diagnosis of electric safety accidents in real time. The manager of each division can receive the status information (or processing information) of the underground distribution line through the portable information terminal, so that the underground distribution line can be quickly checked or maintained In addition, it is possible to minimize the damage by instantly extinguishing when a fire occurs in the underground distribution line, as well as to instantly cool the underground distribution line when it is overheated. In addition, And the width of the passageway is not narrowed, and the movement of the manager and the worker And it is possible to keep the underground distribution line more secure by preventing heat and fire from spreading by intercepting the heat and fire occurrence interval from the non-occurrence interval.

1 to 12 show a first embodiment of a real-time remote diagnosis system for an underground distribution line according to the present invention,
1 is an illustration showing an underground distribution line system,
2 is a photograph showing the ground switch,
3 is a photograph showing a ground bank,
4 is a functional block diagram illustrating a power line communication apparatus according to the present invention.
5 is a functional block diagram illustrating a power line communication modem unit,
FIG. 6 is a functional block diagram showing a real-time remote diagnosis system of an underground distribution line according to the present invention;
7 is a perspective view and operation diagram showing a secret-maintaining type opening and closing means according to the present invention,
FIG. 8 is a perspective view showing a cooling and extinguishing means for an underground distribution line according to the present invention,
9 is an exploded perspective view in which the longitudinal moving part, the elevating part, the horizontal rotating part, the cooling gas jetting part, and the extinguishing agent jetting part are separated,
10 is an exploded perspective view of the cooling and extinguishing means according to the present invention,
11 is a front view showing the operation of the cooling and extinguishing means according to the present invention,
12 is a longitudinal side view showing the operation of the cooling and extinguishing means according to the present invention,
13 to 17 show a second embodiment of a real-time remote diagnosis system for an underground distribution line according to the present invention,
13 is a perspective view including a diffusion blocking device according to the present invention,
14 is a front view including a diffusion blocking device according to the present invention,
15 is an exploded perspective view of the diffusion blocking device,
16 is a schematic view showing an operation example of the injection direction control valve,
17 is a plan view showing the state of injecting the barrier agent.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a real-time remote diagnosis system for an underground distribution line according to the present invention will be described in detail with reference to the preferred embodiments illustrated in the accompanying drawings.

1 to 12 show a first embodiment of a real-time remote diagnosis system for an underground distribution line according to the present invention.

Referring to FIG. 1, an example of the underground wiring line system currently being built by KEPCO will be described.

As shown in the figure, the underground distribution line system is largely supplied with a super high voltage from the power manager to the local substation 20. The local substation 20 lowers the super-high voltage supplied to the high voltage to branch off from the manhole 30 To the ground switch 40 (see FIG. 2) through an underground distribution line, which is hereinafter referred to as a 'manhole branch point'.

At this time, the ground switch 40 supplies a stepped down high voltage to a high voltage customer such as an apartment or a shop, and the high voltage is lowered to a low voltage through the ground bank 50 (see FIG. 3) And the local power station 10 is connected to the local power substation 20 for managing the underground power line.

The power line communication apparatus 100 according to the present invention is provided in each of the manhole branch points, the ground switch 40, the ground bank 50, and the power supply line of the customer as described above to measure the amount of electric current of the power line in real time, By transmitting the current amount information to a management server (see FIG. 6) provided in the power management station 10, a remote diagnosis system capable of real-time diagnosis of a change in the state of the underground distribution line through the management server is constructed.

The power line communication apparatus 100 according to a characteristic aspect of the present invention is a power line communication apparatus according to a characteristic aspect of the present invention which is connected to the power line of the ground switch 40 and the ground bank 50 (for example, terminals of FIGS. 1 and 2) A power line communication modem unit 120 for performing power line communication with the management server, a current amount detection unit 130 for measuring a current amount of the power line, a power line communication modem A remote diagnosis control unit 140 for controlling the power supply unit 120 and the current amount detection unit 130 and the voltage of the power line supplied through the connection unit 110 to the power line communication modem unit 120, And a power supply unit 150 for converting and supplying power to the power supply unit 140.

5, the power line communication modem unit 120 includes a signal conversion module 124 for determining an operation timing in accordance with a clock pulse 122 and a power conversion module 124 for processing the transmission / A signal processing module 126 and a coupler module 128 for extracting and outputting only specific data among transmission / reception data input / output to / from the signal processing module 126 through a power line.

More specifically, the signal conversion module 124 transmits and receives digitized transmission / reception data to / from the remote diagnosis control unit 140, exchanges analogized transmission / reception data with the signal processing module 126, and converts transmission / reception data into analog data It performs DAC (Digital to Analog Converter) function and ADC (Analog to Digital Converter) function to convert sending / receiving data to digital data.

The signal processing module 126 has a function of amplifying the data input from the signal conversion module 124 and outputting the amplified data to the coupler module 128 and outputting the data inputted from the coupler module 128 to the signal conversion module 124 Function.

The coupler module 128 is composed of a coil and a capacitor for extracting only specific data from the transmission / reception data input from the power line.

The specific data at this time may be differently described according to the transmission mode or the reception mode determined by the operation control of the remote diagnosis control unit 140. [

That is, it means transmission data of a specific frequency band outputted from the signal conversion module 124 in the transmission mode. In the reception mode, among the modulated signals flowing through the power line, reception data of a specific frequency band used by the power line communication modem unit 120 .

The main function of the power line communication modem unit 120 as described above is to filter the voltage of the power line and couple a specific communication frequency to transmit / receive data to / from the management server through a power line. The present invention is not limited to the configuration of the power line communication modem unit 120. [

The current amount detector 130 measures the current flowing through the power line connected to the connection unit 110 and provides the measurement value to the remote diagnosis controller 140.

Here, the current amount measuring method can be implemented by a normal CT (current transformer) or a ZCT (video current transformer) circuit provided in the connection unit 110, so that the present invention is not limited to the type of the current amount measuring method.

In this embodiment, the connection unit 110 preferably includes at least one of a CT or a ZCT circuit.

The remote diagnosis control unit 140 according to a characteristic aspect of the present invention determines whether or not the state information about the amount of electric current based on the measurement value received from the electric current amount detection unit 130, the amount of electric leakage, the amount of overcurrent, the amount of electric power used, And transmits the identification information of the power line communication apparatus 100 to the management server through the power line communication modem unit 120 described above.

Here, the identification information means a unique identifier for allowing the management server to identify each of the power line communication apparatuses 100 provided in a plurality of terrestrial switches 40 and the ground bank 50.

The remote diagnosis control unit 140 according to an aspect of the present invention further includes a memory 142 for storing a programmed program for generating the status information.

The memory 142 is preferably set as an EEPROM (Electrically Erasable Programmable Read Only Memory), so that the program can be easily updated.

The power line communication apparatus 100 described above can be separately provided not only in the ground switch 40 and the ground bank 50 but also in the power line of the manhole branch and the customer.

In this case, the management server of the power management station collects the state information transmitted by each power line communication apparatus 100, and collects the state information of the underground distribution line for each of the compartments, as well as the power consumption amount of the customer, the leakage amount, the overcurrent amount, The state can be diagnosed.

On the other hand, the management server provided in the power management station 10 notifies the manager (hereinafter referred to as " division manager ") who divides the state of the underground distribution line by the ground switch or the ground bank and manages the underground distribution line, So that a system as shown in Fig. 6 can be constructed to implement the maintenance.

In the present embodiment, it is set to be divided by the ground switch or the ground bank, but the present invention is not limited thereto.

More specifically, the management server 200 receives status information from a plurality of power line communication apparatuses 100 linked to a power line communication network N composed of a plurality of underground distribution lines and receives the status information or information , &Quot; processing information ") to the portable information terminal 300 of the manager.

At this time, in order to transmit the status information or the processing information to the portable information terminal 300, the management server 200 may use a normal mobile communication company 400a as shown in FIG. 400b may be used.

Here, the processing information means processing the state information of the underground distribution line including the current amount, the amount of electric leakage, the amount of overcurrent, the amount of electricity used, the amount of the thief current, For example, a text or graphic based message such as "identification information + current amount + abnormality ".

Accordingly, the divisional manager of the portable information terminal 300 that receives the message can quickly dispatch to the ground switch, the ground bank, or the customer to perform the inspection and maintenance.

In this embodiment, the portable information terminal 300, which the administrator can possess, can be set as a dedicated terminal of a PDA, a cellular phone, a portable computer, or a power management station. ). ≪ / RTI >

7 shows the secret-type opening / closing means according to the present invention.

The secret-type opening / closing means is configured so that state information generated and stored in the memory 142 can be transferred to a portable memory such as a USB immediately when necessary, but only authorized persons can use it.

The secret-type opening / closing means can be installed in the opening / closing door of the input / output terminal which can connect a storage device such as a USB and is connected to the memory 142.

As shown in FIG. 7, the confidential holding type opening and closing means according to a further embodiment of the present invention is constructed so as to be separated into an upper case 500 and a lower case 510.

A cam 520 is formed on one side of the lower case 510 and the cam 520 is connected to a rotation axis of a door that is not shown so as to open and close the door in accordance with the rotation direction of the cam 520 do.

At this time, the opening and closing door is a means for opening and closing a loading port through which a portable memory such as a USB can be inserted.

The convex portion T and the concave portion G are repeatedly formed at intervals of 90 degrees to control the driving of the movable member 560, which will be described later.

A stopper 530 is installed at one side of the cam 520 in the radial direction to rotate along the rotation direction of the cam 520. The stopper 530 rotates around the stopper 532, Is brought into contact with the cam 520 and the other end is coupled to the coil spring 540. [

One end of the latch 530 in contact with the cam 520 comes into contact with the convex portion T and the concave portion G alternately in accordance with the rotation of the cam 520, The latching member 530 is rotatable about the latching shaft 532.

In addition, the stopper 530 is rounded along the shape of the cam 520 in a longitudinal direction, and a circular protrusion 534 is protruded in the middle of the length, and the stopper shaft 532 protrudes from the circular protrusion 534 And the other end to which the coil spring 540 is coupled.

One switching element 550 is installed in the lower case 510 at a position within the radius of the circular protrusion 534.

The switching element 550 is provided for stopping the driving of the movable member 560 installed at the center of the cam 520 and includes a lever 552 made of an elastic piece as shown in the figure, And a button 554 for switching according to the depression and release of the button 554. The selective connection between the common terminal COM and the first terminal NC and the second terminal NO is established according to the operation of the button 554 On and off.

The movable member 560 uses an AC motor and rotates the cam 520 in a predetermined direction to interrupt the contact between the common terminal COM and the first and second terminals NC and NO.

At this time, when the common terminal COM and the first terminal NC are energized and a voltage is applied, the opening and closing door is kept in a closed state, and the common terminal COM and the second terminal NO are energized, It is preferable that the opening / closing door is set to be kept open when the door is opened.

In this case, it is possible to use a known key input method (a password input method using a keypad) or a secret key in order to be able to perform the contact operation between the terminals, which is a publicly known matter and will not be described here.

Thus, the opening and closing of the opening and closing door are repeated according to the rotation of the cam 520, so that the user can output desired information while opening and closing the door, and can separately store the desired information.

In particular, this structure can prevent secret leakage by automatically opening the insertion port only when the authorized person is connected.

In addition, the real-time remote diagnosis system of the underground distribution line according to the present invention further includes a cooling and fire extinguishing device CF for injecting cooling gas and fire extinguishing agent into the power section tunnel 1 as shown in FIGS. 8 to 12 .

The power section tunnel 1 is a concrete structure composed of both side walls 1a, a bottom 1b and a ceiling 1c, a plurality of shelves 2 are installed on both side walls 1a, 2, a plurality of distribution lines 3 are supported.

The cooling and extinguishing device CF comprises a temperature sensor TS provided on each of the shelves 2; A longitudinal moving part 1000 installed on a lower surface of the ceiling 1c; A lifting part 2000 installed on the lower part of the longitudinal moving part 1000 so as to be able to move up and down; A horizontal rotation part 3000 horizontally rotatably mounted on the lower part of the elevating part 2000; A cooling gas spraying part 4000 provided in the horizontal rotation part 3000 for spraying cooling gas; And a fire extinguisher spray unit 5000 installed in the horizontal rotation unit 3000 for spraying fire extinguishing agent.

The cooling and fire extinguishing device CF may be formed as one unit over the entire length of the electric power tunnel 1 but may be divided into several or several sections depending on the length of the electric power tunnel 1, .

This is intended to enable cooling and extinguishing of each section when the cooling need interval and the fire extinguishing need interval occur simultaneously in the power tunnel tunnel 1 simultaneously.

The longitudinal movement unit 1000 includes a longitudinal base 1100 disposed at a lower portion of the ceiling 1c; Longitudinal guide means (1200) for guiding the pedestal (1100) in the longitudinal direction in the longitudinal direction; And a longitudinal driving means 1300 for driving the pedestal 1100 along the longitudinal guiding means 1200 in the longitudinal direction.

The longitudinal strip 1100 includes a moving frame 1110; And both side support plates 1120 coupled to the right and left sides of the moving frame 1110.

The movable frame 1110 may be formed by welding an H-shaped steel, an angle, or a square pipe, and both side support plates 1120 may be formed by welding an iron plate to both sides of the movable frame 1110 by bolting / can do.

The longitudinal guide means 1200 includes an upper flange 1211 fixed to the lower surface of the ceiling 1c and a lower flange 1212 spaced apart from the lower end of the upper flange 1211, A longitudinal guide rail 1210 having a web 1213 connecting the lower flange 1212; A pair of front and rear support shafts 1220 whose longitudinal direction is fixed to both side support plates 1120 of the pedestal 1100; And a pair of guide rollers 1230 rotatably supported on the support shaft 1220 and rolling in contact with the upper surface of the lower end flange 1212 of the longitudinal guide rail 1210.

The longitudinal guide rail 1220 can be fixed by an anchor bolt (not shown) installed on the ceiling 1c and a nut (not shown) fastened to the anchor bolt (not shown).

The support shaft 1220 may be fixed to the both side support plates 1120 by any conventional method, so that detailed illustration and description thereof will be omitted.

A conventional method of rotatably supporting the guide roller 1230 with respect to the support shaft 1220 can also be used, so that detailed illustration and description thereof will be omitted.

The guide rollers 1230 constituting the longitudinal guiding means 1200 are in rolling contact with the upper surface of the lower end flange 1212 of the longitudinal guide rail 1210, A horizontal rotation unit 3000, a cooling gas spraying unit 4000, and a fire extinguishing agent spraying unit 5000, which are coupled to the lower part of the pedestal 1100, And also guides the power tunnel in the longitudinal direction of the tunnel 1.

The longitudinal driving means 1300 includes a pair of left and right traveling motors 1310 mounted on the both side supporting plates 1120 of the moving frame 1110 and installed so that the traveling motor shaft 1311 passes through the both side supporting plates 1120, Wow; And a pair of left and right driving rollers 1320 which are coupled to the driving motor shaft 1311 and roll in contact with the upper surface of the lower end flange 1212 of the longitudinal guide rail 1210.

Since the driving motor 1310 can be mounted on the both side support plates 1120, a conventional mounting method can be used, so that detailed illustration and description thereof will be omitted.

Since the traveling roller 1320 can be integrally rotatably coupled to the traveling motor shaft 1311 by a common key and a screw coupling method, a detailed description thereof will be omitted.

When the traveling motor 1310 rotates in the forward or reverse direction, the traveling roller 1320 coupled to the traveling motor shaft 1311 rotates forward or backward, The elevating portion 2000 installed at the lower portion of the scaffold 1100 and the horizontal rotating portion 3000 and the cooling gas spraying portion 4000 and the extinguishing agent spraying portion 5000 are arranged in the longitudinal direction of the electric power tunnel 1 Forward or backward.

The elevating unit 2000 includes a platform support 2100 coupled to the platform 1100 in the longitudinal direction, a platform 2200 positioned below the platform support 2100, A winding means 2300 mounted on the platform support 2100; And a lifting rope 2400 wound around the winding means 2300 and having a lower end fixed to the platform 2200.

The platform support frame 2100 includes front and rear support plates 2110 to which upper ends are fixed on both sides of the moving frame 1110 and a mounting plate 2120 that connects the lower ends of the front and back support plates 2110.

The front and rear support plates 2110 and the mounting plate 2220 can be coupled by bolt fastening or welding, and a detailed description thereof will be omitted.

The platform 2200 includes a platform body 2210 formed in a flat plate shape and a connection piece 2220 connected to both sides of the top surface of the platform body 2210.

The connecting piece 2220 includes a horizontal intermediate portion 2221 and left and right sloping portions 2222 extending downward from the left and right sides of the intermediate portion 2221 and fixed to the upper surface of the platform body 2210 .

Fixing of the right and left slope portions 2222 with respect to the platform 2210 can be accomplished by bolting or welding.

The winding means 2300 includes a winding motor 2310 mounted on the upper surface of the mounting plate 2120 of the platform support 2100 and having a lifting motor shaft 2311 protruding from both front and rear sides and penetrating the front and rear support plates 2110, )Wow; And a winding drum 2320 coupled to the winding motor shaft 2311 of the winding motor 2310.

The attachment of the winding motor 2310 to the mounting plate 2120 can be accomplished by screwing, and therefore, illustration and description thereof will be omitted.

The coupling of the winding drum 2320 to the winding motor shaft 2311 can be achieved by key engagement and screwing, so that detailed illustration and description thereof will be omitted.

The winding motor shaft 2311 may be supported by a support hole 2111 formed in the front and rear support plates 2110. A metal bushing or a bearing can be inserted between the support hole 2111 and the winding motor shaft 2311.

The lifting rope 2400 may be a conventional wire rope. The upper end is fixed to the winding drum 2320, and the lower end is fixed to the platform 2200.

A threaded rod 2410 is coupled to the lower end of the lifting rope 2400 to fix the lifting rope 2400 to the platform 2200. In the intermediate portion 2221 of the connecting piece 2220, Holes 2420 are formed in the intermediate portion 2221 so that the threaded rod 2410 is passed through the through hole 2420 and the nut 2430 is fastened to the threaded rod 2410 at the upper portion and the lower portion of the intermediate portion 2221, 2440 can be fastened.

Since the lower end of the lifting rope 2400 and the screw rod 2410 can be coupled by conventional welding, detailed description thereof will be omitted.

When the winding motor 2310 rotates in the forward or reverse direction, the winding drum 2320 coupled to the winding motor shaft 2311 is rotated forward or reverse, and the lifting rope 2400 is wound The horizontal rotation part 3000 provided at the lower part of the platform 2200, the cooling gas spray part 4000, and the extinguishing agent part 2400, which are coupled to the lower end of the winding rope 2400, The yarn section 5000 is lifted and lowered.

The horizontal rotation unit 3000 includes a swivel base 3100 positioned below the platform 2200; And a horizontal rotation motor 3200 mounted on a central portion of an upper surface of the platform body 2210 and coupled to an upper surface of the rotation body 3100 through a horizontal rotation motor shaft 3210.

The rotating base body 3100 is formed in a flat plate shape.

The horizontal rotation motor 3210 is mounted on the upper surface of the platform body 2210 by a conventional bolt fastening, so that detailed illustration and description thereof will be omitted.

The horizontal rotation motor shaft 3210 is passed through a through hole 3220 formed at the center of the platform body 2210.

A coupling flange 3300 is coupled to the lower end of the horizontal rotation motor shaft 3210 to couple the horizontal rotation motor shaft 3210 and the horizontal rotation shaft 3100.

The coupling flange 3300 may be integrally formed at the lower end of the horizontal rotation motor shaft 3210 or integrally formed by welding.

The swivel body 3100 and the coupling flange 3300 can be coupled by bolt fastening, and a detailed illustration and description thereof will be omitted.

When the horizontal rotation motor 3200 constituting the horizontal rotation unit 3000 is rotated forward or reverse, the rotation base body 3100 coupled to the horizontal rotation motor axis 3210 rotates clockwise or counterclockwise So that the cooling gas spraying part 4000 and the extinguishing agent spraying part 5000 installed at the lower part of the rotating body 3100 rotate clockwise or counterclockwise.

The cooling gas spraying unit 4000 includes a cooling gas tank 4100 fixed to a lower surface of the swivel base 3100; A cooling gas compressor 4200 fixed to a lower surface of the swivel base 3100; A cooling gas supply pipe 4300 connecting the cooling gas tank 4100 with the suction end of the cooling gas compressor 4200; A cooling gas injection pipe (4400) connected to the discharge end of the cooling gas compressor (4200); A cooling gas injection nozzle 4500 connected to the cooling gas injection pipe 4400; And a cooling gas opening / closing valve 4600 installed between the cooling gas injection pipe 4400 and the cooling gas injection nozzle 4500.

The cooling gas tank 4100 and the cooling gas compressor 4200 are installed in the middle portion of the swivel base 3100 in the front-rear direction.

The cooling gas tank 4100, the cooling gas compressor 4200, the cooling gas supply pipe 4300, the cooling gas injection pipe 4400, the cooling gas injection nozzle 4500 and the cooling gas opening and closing valve 4600 are installed symmetrically do.

The cooling gas compressor 4200 may be configured to operate under the control of a control unit (not shown) when the sensed temperature sensed by the temperature sensor TS is higher than the over-heat sensed set temperature or the fire sensed sensed set temperature.

The predetermined superheated temperature is a temperature just before the temperature of the distribution line reaches a dangerous level, and the set temperature for occurrence of a fire is a temperature at which a fire occurs, which is much higher than the superheated set temperature.

The cooling gas opening / closing valve 4600 uses a solenoid valve which can be electrically controlled. That is, when the sensed temperature sensed by the temperature sensor TS is higher than the over-heat sensation set temperature or the fire sensation conspicuous set temperature, the cooling gas dispenser 4000 may be opened under the control of a control unit (not shown).

As the cooling gas stored in the cooling gas tank 4100, argon or nitrogen may be used in an inert gas. In this case, when inert gas is used as the cooling gas, the surrounding air (oxygen) is blocked, so that a fire can be prevented or extinguished.

The fire extinguisher spray unit 5000 includes a fire extinguisher tank 5100 fixed to a lower surface of the swivel base 3100; An extinguishing agent compressor 5200 fixed to a lower surface of the swivel base 3100; An extinguishing agent supply pipe 5300 connecting the extinguishing agent tank 5100 and the suction end of the extinguishing agent compressor 5200; A fire extinguisher dispensing pipe 5400 connected to the discharge end of the extinguishing medium compressor 5200; An extinguishing agent spray nozzle 5500 connected to the extinguishing agent spray pipe 5400; And an extinguishing agent opening valve 5600 installed between the extinguishing agent spraying pipe 5400 and the extinguishing agent spraying nozzle 5500.

The extinguishing agent tank 5100 and the extinguishing agent compressor 5200 are installed on both sides in the longitudinal direction of the swivel base body 3100.

The extinguishing agent tank 5100, the extinguishing agent compressor 5200, the extinguishing agent supply pipe 5300, the extinguishing agent spraying pipe 5400, the extinguishing agent spraying nozzle 5500 and the extinguishing agent opening and closing valve 5600 are installed symmetrically.

The extinguishing agent compressor 5200 may be configured to operate under the control of a controller (not shown) when the sensed temperature sensed by the temperature sensor TS is higher than the over-heat sensed set temperature or the fire sensed sensible set temperature.

The extinguishant opening / closing valve 5600 uses a solenoid valve that can be controlled electrically. That is, when the sensed temperature sensed by the temperature sensor TS is higher than the over-heat sensed set temperature or the sensed temperature for fire occurrence, the extinguisher open / close valve 5600 may be opened under the control of a control unit (not shown).

As the extinguishing agent stored in the extinguishing agent tank 5100, a foam extinguishing agent or a powder extinguishing agent can be used.

Hereinafter, the operation of the cooling and fire extinguishing system CF will be described.

In the initial state, the longitudinal moving part 1000, the elevating part 2000, the horizontal rotating part 3000, the cooling gas spraying part 4000 and the extinguishing agent spraying part 5000 are arranged in front of or behind the longitudinal direction guide rail 1210 (See the solid lines in Figs. 11 and 12).

In this state, the temperature sensor TS installed on the shelf 2 senses the ambient temperature. The control unit (not shown) controls the longitudinal direction movement unit 1000, the elevation unit 2000, The cooling gas spraying unit 4000 and the extinguishing agent spraying unit 5000 are controlled to move longitudinally, vertically, and horizontally while controlling the rotation unit 3000, the cooling gas spraying unit 4000 and the extinguishing agent spraying unit 5000, (See the virtual line marks in Figs. 11 and 12).

At this time, the control unit compares the sensed temperature of the temperature sensor TS with the set temperature of the overheat sensation while preliminarily setting the overheat sensible set temperature and the presumed sensible temperature for fire occurrence and stores it. If the sensed temperature is higher than the superheat consecutive set temperature, It is judged that a fire has occurred and the cooling gas is injected from the cooling gas spraying section 4000. If the sensed temperature is higher than the fire occurrence considered set temperature, So that the fire extinguishing agent can be controlled to be sprayed from the head part 5000.

When the temperature sensed by the temperature sensor TS provided on the shelf of any one of the plurality of shelves 2 is higher than the over-heat-considered set temperature or higher than the set-fire temperature, The lifting platform 2200 is raised or lowered by the means 2300 so that the horizontal rotation part 3000, the cooling gas spraying part 4000 and the extinguishing agent spraying part 5000 installed on the lower part thereof are lifted or lowered The cooling gas injection nozzle 4500 of the gas injection unit 4000 and the extinguishing agent injection nozzle 5500 of the extinguishing agent spraying unit 5000 can be directed to the shelf 2 on which the temperature sensor TS is installed.

The elevation part 2000, the horizontal rotation part 3000, and the cooling gas injection part (not shown) installed on the pedestal 1100 and the lower part thereof by the operation of the longitudinal movement part 1000 in the upward or downward state, 4000 and the fire extinguishing agent spraying unit 5000 can be cooled or extinguished by spraying coolant gas or fire extinguishing agent to the shelf 2 of the layer and the power distribution line 3 while advancing or retracting in the longitudinal direction of the power tunnel 1 .

The cooling gas spraying part 4000 and the extinguishing agent spraying part 5000 are symmetrically arranged so that the cooling gas and the extinguishing agent are sprayed also on the shelf 2 opposite to the same layer as the layer and the electric power distribution line 3 It is possible to prevent overheating and fire of the opposite shelf 2 and the power distribution line 3.

The cooling gas spraying unit 4000 and the extinguishing agent spraying unit 5000 are installed below the horizontal rotation unit 3100 of the horizontal rotation unit 3000 and operate by the operation of the horizontal rotation unit 3000 described above, And the extinguishing agent spraying nozzle 5500 can horizontally rotate forward and backward to horizontally rotate the cooling gas and the extinguishing agent so that the cooling gas and the extinguishing agent can be sprayed over a wider range than in the case of spraying in the stopped state.

Accordingly, the present invention provides a cooling and extinguishing device. When the temperature of the underground distribution line detected by the temperature sensor is higher than the over-temperature reference temperature, which can be regarded as overheat, it is determined that the underground distribution line is overheated. It is possible to prevent overheating of the distribution line and prevent it from leading to a fire by injecting the cooling gas by the injection means and cooling the temperature of the underground distribution line detected by the temperature sensor, Considerable fire occurrence If the temperature is higher than the set temperature, the fire is considered to have occurred in the underground distribution line and the fire can be suppressed rapidly by injecting the fire extinguishing agent by the fire extinguishing agent injection means, So that it can be safely maintained.

In addition, the cooling and extinguishing apparatus can be cooled and extinguished in a plurality of shelves as a unit without installing each shelf having a plurality of layers. Therefore, the construction cost can be greatly reduced without enlarging the width of the power tunnel The width of the passageway is not narrowed, and the movement of the manager and the worker becomes convenient.

13 to 17 show a second preferred embodiment of a real-time remote diagnosis system for an underground distribution line according to the present invention.

The real-time remote diagnosis system of the underground distribution line according to the present embodiment further includes a diffusion blocking device (FB) for blocking diffusion of heat and fire generated in the underground distribution line.

As shown in FIGS. 13 to 17, the diffusion blocking device FB includes a blocker supply pipe 6100 which is installed long left and right along the lower surface of the lowermost layer 2 of the plurality of shelves 2, Layered shelf 2 is provided vertically from the uppermost shelf of the shelf 2 of the layer 2 to the front of the lowest shelf and is connected to the blocker supply pipe 6100 at the upper end thereof and spraying the barrier agent toward the side wall 1a of the power tunnel 1 A sidewall direction spraying pipe 6200 provided with a sidewall direction spray hole 6210 and an upper end wall which are parallel to the right side of the sidewall direction spraying pipe 6200 and connected to the blocker supply pipe 6100, A right direction spraying pipe 6300 provided with a plurality of rightward spraying holes 6310 for spraying a barrier agent and a right side spraying pipe 6300 provided parallel to the left side of the side wall spraying pipe 6200, Connect to the left side of the blocker A left directional injection pipe 6400 provided with a plurality of leftwardly directed injection holes 6410 for connecting the sidewall directional injection pipe 6200, the rightward directional injection pipe 6300 and the leftward directional injection pipe 6400, And a spray direction control valve 6500 selectively or simultaneously connecting to the blocker supply pipe 6100.

The blocking agent supply pipe 6100 may be connected to a blocking agent supply source (not shown) including a blocking agent tank containing a blocking agent and a blocking agent pump for pumping the blocking agent in the blocking agent tank. The power source source may be a manhole (not shown) provided at both ends of the electric power tunnel 1.

The blocking agent may be the cooling gas or the extinguishing agent of the first embodiment.

The blocking agent supply pipe 6100 may be fixed to the lower surface of the shelf 2 of the lowest layer by fixing members 6110.

The fixture 6110 is formed in a semicylindrical shape opened downward and includes an upper fixture 6111 that surrounds the upper half of the outer circumferential surface of the blocker supply pipe 6100 and a semi- A lower fixture 6112 surrounding the lower fixture 6111 and bent portions 6113 and 6114 formed at the upper end of the lower fixture 6112 and bent at the upper end of the lower fixture 6112, And a shelf fixing piece 6115 formed horizontally on the upper surface of the shelf 2 and fixed to the shelf 2. [

The upper fixture 6111 includes an anchor bolt B1 which is buried in the lower surface of the bottom shelf 2 and protrudes downward and penetrates the fixing tab 6115 and a nut N1 fastened to the anchor bolt B1 So that it can be fixed to the lower surface of the shelf 2.

The upper fixture 6111 and the lower fixture 6112 may be coupled to each other by a bolt B2 passing through the bent portions 6113 and 6114 and a nut N2 fastened to the bolt B2.

The sidewall direction spraying pipe 6200, the right direction spraying pipe 6300, and the left direction spraying pipe 6400 are preferably disposed at left and right positions at a position where the temperature sensor TS is installed.

This is to divide the temperature sensor (TS), which is installed at regular intervals, into a section having a certain distance to the left and right, so that the diffusion of heat and fire can be blocked by each section.

Finishing bolts 6201, 6301 and 6401 are provided to block the upper ends of the upper ends of the sidewall direction injection pipe 6200, the right direction injection pipe 6300 and the left direction injection pipe 6400.

The finishing bolts 6201, 6301 and 6401 use bolts having head portions and a female threaded portion is provided on the upper inner circumferential surface of the sidewall direction injection tube 6200, the right direction injection tube 6300 and the left direction injection tube 6400 And fastening the finishing bolts 6201, 6301 and 6401.

At this time, it is preferable that the sealing bolts 6201, 6301, and 6401 are wrapped with piping connection sealing tapes such as Teflon tape for sealing to prevent leakage of the blocking agent.

The injection direction control valve 6500 may be independently provided for the sidewall direction injection tube 6200, the right direction injection tube 6300 and the left direction injection tube 6400, but it is preferable that the injection direction control valve 6500 is composed of one solenoid valve .

As shown in Fig. 16, the injection direction control valve 6500 can use a four-port four-position solenoid valve.

As shown in FIG. 16, the four ports include an inlet port P0 formed at one side and connected to the blocking agent supply pipe 6100, and a first port formed at the other side and connected to the sidewall directional injection pipe 6200 And a third outflow port P3 to which the left directional injection pipe 6400 is connected. The second outflow port P2 is connected to the rightward directional injection pipe 6300, and the third outflow port P3 is connected to the leftward direction.

The first position is such that the inlet port P0, the first outlet port P1, the second outlet port P2 and the third outlet port P3 are all closed to form the sidewall direction injection tube 6200, the right direction injection tube 6300 (See Fig. 16 (a)) to prevent the blocking agent from being injected in the left directional injection tube 6400).

The second position is a position where the first outlet port P1 and the second outlet port P2 are connected to the inlet port P0 so that the blocking agent is injected from the sidewall spraying pipe 6200 and the rightward spraying pipe 6300 (See Fig. 16 (b)).

The third position is a position where the first outlet port P1 and the third outlet port P3 are connected to the inlet port P0 so that the blocking agent is injected from the sidewall direction injection tube 6200 and the left direction injection tube 6400 (See Fig. 16 (c)).

In the fourth position, the first outlet port P1, the second outlet port P2, and the third outlet port P3 are both connected to the inlet port P0 to form the sidewall-direction spray tube 6200, the right- 6300 and the left directional injection tube 6400 (see Fig. 16 (d)).

The injection direction control valve 6500 may be operated by a control unit (not shown) when the sensed temperature of the temperature sensor TS is higher than the over-heat sensed set temperature or the fire sensed sensed set temperature.

That is, when the sensed temperature of the temperature sensor TS is higher than the superheat reference set temperature or the fire occurrence reference set temperature, the injection direction control valve 6500 installed on the left side based on the temperature sensor TS, The second outlet port P2 to which the first outlet port P1 connected to the right flow directing pipe 6300 and the second outlet port P2 connected to the right flow directing pipe 6300 are connected to the inlet port P0 to which the blocking agent supply pipe 6100 is connected And the third outflow port P3 connected to the left directional injection pipe 6400 is connected to the first outflow port P1 through which the sidewall direction injection pipe 6200 is connected, And connected to the inlet port P0 to which the supply pipe 6100 is connected (see FIG. 16 (c)).

The blocking agent is injected toward the side wall 1a of the electric power tunnel 1 at the sidewall direction injection tube 6200 located on the left side of the temperature sensor TS and the side wall direction injection tube 6200 located on the right side, The blocking agent is injected in the right direction from the right direction injection tube 6300 located on the left side of the sensor TS and the blocking agent is injected in the left direction from the left direction injection tube 6400 located on the right side of the temperature sensor TS See FIG. 17).

A blocking agent curtain formed by the blocking agent is formed on the left and right sides of the temperature sensor TS based on the injection of the blocking agent and a blocking curtain is formed on the central passage side of the power tunnel 1, The temperature of the section or the flame can be prevented from diffusing into the other section.

At this time, although the temperature sensor TS is provided for each shelf 2 of each layer, when the temperature of the shelf 2 of any one of the layers rises above the set temperature for superheat control or the set temperature for ignition, 2, the front-rear direction spraying pipe 6200, the right-direction spraying pipe 6300, and the left-side spraying pipe 6400 are configured to cover all the layers, The blocking agent is sprayed onto the shelf 2.

On the other hand, when the sensed temperature of the two adjacent temperature sensors TS is higher than the set temperature for superheat control or the set temperature for igniting the fire, the injection direction control valve 6500 located on the left side with respect to the left temperature sensor TS The first outlet port P1 and the second outlet port P2 are connected to the inlet port P0 (see FIG. 16 (b)) and the right side temperature sensor The injection direction control valve 6500 located on the left side in the figure is connected to the first port P0 and the second outlet port P2 and the second outlet port P3 are both connected to the inlet port P0 The injection direction control valve 6500 located on the right side with respect to the right temperature sensor TS has the first outlet port P1 and the third outlet port P3 connected to the inlet port P0, (See Fig. 16 (c)).

Therefore, in the sidewall direction injection tube 6200 located on the left side and the side wall direction injection tube 6200 located on the right side with respect to the left side temperature sensor TS, The blocking agent is injected toward the side wall 1a of the power tunnel 1 in the capillary tube 6200 and the blocking agent is injected to the right side in the right side injection tube 6200 located on the left side with respect to the left temperature sensor TS The blocking agent is injected in the rightward direction and the leftward direction in the rightward direction injection tube 6300 and the left direction injection tube 6400 located on the right side (left side with respect to the right temperature sensor) with respect to the left side temperature sensor TS, And the blocking agent is injected in the left direction in the left direction injection tube 6400 located on the right side with respect to the right side temperature sensor TS.

According to the injection of this blocker, a barrier curtain is formed for two sections corresponding to the two temperature sensors TS.

In addition, the diffusion blocking device FB can interlock and cooperate with the above-described cooling and fire extinguishing device CF to prevent overheating of the power distribution in the power tunnel, to extinguish the fire very little, It is possible to keep the underground distribution line more securely.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

2: Shelf 3: Distribution line
10: Power station 20: Local substation
30: manhole 40: ground switch
50: ground bank 100: power line communication device
110: connection unit 120: power line communication modem unit
122: clock pulse module 124: signal conversion module
126: signal processing module 128: coupler module
130: current amount detection unit 140: remote diagnosis control unit
142: memory 200: management server
300: Portable information terminal 400a: Mobile carrier
400b: satellite 500: upper case
510: Lower case 520: Cam
530: Strapper 540: Coil spring
550: switching element 560: movable member
CF: cooling and extinguishing device TS: temperature sensor
1000: longitudinal direction moving section 1100: longitudinal direction moving section
1200: longitudinal direction guide means 1300: longitudinal direction driving means
2000: elevating part 2100: elevating support
2200: platform 2300: winding means
2400: lifting rope 3000: horizontal rotating part
3100: rotating body 3200: horizontal rotating motor
4000: Cooling gas spraying part 4100: Cooling gas tank
4200: Cooling gas compressor 4400: Cooling gas injection pipe
4500: cooling gas injection nozzle 4600: cooling gas opening / closing valve
5000: Extinguishing agent spraying part 5100: Extinguishing agent tank
5200: Extinguishing Agent Compressor 5400: Extinguisher Sprayer
5500: Extinguishing agent injection nozzle 5600: Extinguishing agent opening / closing valve
FB: diffusion barrier 6100: blocker supply pipe
6200: Side wall spray tube 6300: Right side spray tube
6400: Left direction spray gun 6500: Injection direction control valve

Claims (1)

A power line communication device 100 provided at a manhole branch point, a ground switch 40, a ground bank 50 and a power supply line of a customer, and a power line communication device 100 for transmitting status information of underground power distribution lines transmitted from the power line communication device 100 to power line communication And a management server (200) for receiving the electric power from the power line communication device (PLC), and diagnosing a current amount, a leakage amount, an over current amount, a power usage amount, a thief current amount, or a disconnection state of the underground distribution line based on the status information, 100) comprises a connection part 110 constituting a CT (current transformer) or a ZCT (video current transformer) circuit and connected to the power line of the manhole point, the ground switch, the ground bank or the customer; A power line communication modem unit 120 for performing power line communication with the management server 200; A current amount detecting unit 130 for measuring an amount of current of a power line connected to the connection unit; A remote diagnosis control unit 140 for controlling the power line communication modem unit and the current amount detection unit; And a power supply unit 150 for converting and supplying a voltage supplied from the power line to a power source necessary for the power line communication modem unit, the current amount detection unit, and the remote diagnosis control unit; The system further includes a portable information terminal 300. The management server 200 transmits processing information based on the status information or status information to the mobile communication company 400a or the satellite 400b To the portable information terminal (300); The power line communication modem unit 120 includes a signal conversion module 124 for determining an operation timing according to a clock pulse 122, a signal processing module 126 for processing transmission / reception data input / output from the signal conversion module 124, And a coupler module 128 for extracting and outputting only specific data from the transmission / reception data input / output to / from the signal processing module via the power line. The signal conversion module 124 includes a remote diagnosis controller 140, And transmits and receives analogized transmission and reception data to and from the signal processing module 126. The signal processing module 126 amplifies the data input from the signal conversion module 124 and outputs the amplified data to the coupler module 128 , And to output the data input from the coupler module (128) to the signal conversion module (124); The remote diagnosis control unit 140 further includes a memory 142 and generates status information based on the amount of current received from the current amount detection unit 130. The status information is generated through a program stored in the memory 142 ; The power line communication apparatus (100) is configured to transmit identification information for identifying a power line communication apparatus together with the status information to a management server (200), the system comprising:
The remote diagnosis system further includes a secret-type opening / closing means for transferring the status information generated and stored in the memory 142 to a portable memory including the USB immediately when necessary, wherein the secret-type opening / Output terminal and can be assembled separately by an upper case 500 and a lower case 510. A cam 520 is formed on one side of the lower case 510, 520 are connected to the rotation axis of the opening and closing door for opening and closing the insertion port through which the USB can be inserted and are configured to be able to open and close the opening and closing door according to the rotation direction of the cam 520. The cam 520 is disposed at 90- T and the recessed portion G are repeatedly formed to control the driving of the movable member 560 and a stopper 530 is provided on one side of the cam 520 in the radial direction of the cam 520, (Not shown) One end of the latching member 530 is in contact with the cam 520 and the other end of the latching member 530 is coupled to the coil spring 540. The latching member 530 is inserted into the cam 520 in the longitudinal direction, And a circular protrusion 534 is protruded in the middle of the length and the latching shaft 532 is disposed between the circular protrusion 534 and the other end to which the coil spring 540 is coupled, One switching element 550 is installed in the lower case 510 at a position within the radius of the circular protrusion 534 and the switching element 550 is elastically deformed to stop the driving of the movable element 560. [ And a button 554 for switching according to the depression and release of the lever 552. The operation of the button 554 causes the operation of the common terminal COM and the first terminal NC, , The second terminal (NO) is selectively turned on and off, and the center of the cam (520) And the movable member 560 is used as an AC motor to rotate the cam 520 in a predetermined direction to interrupt the contact between the common terminal COM and the first and second terminals NC and NO And selectively open and close the opening / closing door,
A temperature sensor (TS) installed on each of a plurality of shelves (2) provided on both side walls of the power tunnel (1); A longitudinal direction moving part 1000 installed on the lower surface of the ceiling of the electric power tunnel tunnel; A lifting part 2000 installed on the lower part of the longitudinal moving part 1000 so as to be able to move up and down; A horizontal rotation part 3000 horizontally rotatably mounted on the lower part of the elevating part 2000; A cooling gas spraying part 4000 provided in the horizontal rotation part 3000 for spraying cooling gas; An extinguishing agent spraying unit 5000 installed in the horizontal rotation unit 3000 for spraying the extinguishing agent; And a control means (6000) for controlling the cooling gas spraying unit (4000) and the fire extinguishing agent spraying unit (5000). The cooling and fire extinguishing unit (CF)
The longitudinal direction moving part 1000 includes a longitudinal direction moving part 1100 disposed below the ceiling of the electric power tunnel. Longitudinal guide means (1200) for guiding the pedestal (1100) in the longitudinal direction in the longitudinal direction; And a longitudinal driving means 1300 for driving the pedestal 1100 along the longitudinal guiding means 1200 in the longitudinal direction,
The elevating unit 2000 includes a platform support 2100 coupled to the platform 1100 in the longitudinal direction, a platform 2200 positioned below the platform support 2100, A winding means 2300 mounted on the platform support 2100; And a lifting rope (2400) wound around the winding means (2300) and having a lower end fixed to the platform (2200)
The horizontal rotation unit 3000 includes a swivel base 3100 positioned below the platform 2200; And a horizontal rotation motor 3200 mounted on a central portion of the upper surface of the platform 2200 and horizontally rotating motor shaft 3210 passing through the platform 2200 and coupled to the upper surface of the rotation base body 3100,
The cooling gas spraying unit 4000 includes a cooling gas tank 4100 fixed to a lower surface of the swivel base 3100; A cooling gas compressor 4200 fixed to a lower surface of the swivel base 3100; A cooling gas supply pipe 4300 connecting the cooling gas tank 4100 with the suction end of the cooling gas compressor 4200; A cooling gas injection pipe (4400) connected to the discharge end of the cooling gas compressor (4200); A cooling gas injection nozzle 4500 connected to the cooling gas injection pipe 4400; And a cooling gas opening / closing valve 4600 installed between the cooling gas injection pipe 4400 and the cooling gas injection nozzle 4500,
The fire extinguisher spray unit 5000 includes a fire extinguisher tank 5100 fixed to a lower surface of the swivel base 3100; An extinguishing agent compressor 5200 fixed to a lower surface of the swivel base 3100; An extinguishing agent supply pipe 5300 connecting the extinguishing agent tank 5100 and the suction end of the extinguishing agent compressor 5200; A fire extinguisher dispensing pipe 5400 connected to the discharge end of the extinguishing medium compressor 5200; An extinguishing agent spray nozzle 5500 connected to the extinguishing agent spray pipe 5400; And an extinguishing agent opening valve 5600 installed between the extinguishing agent spraying pipe 5400 and the extinguishing agent spraying nozzle 5500,
Further comprising a diffusion blocking device (FB) for blocking diffusion of heat and fire generated in the underground distribution line,
The diffusion blocking device FB comprises a blocker supply pipe 6100 which is installed long left and right along the lower surface of the bottom 2 of the plurality of shelves 2, A plurality of sidewall-direction spray holes 6210 vertically installed over the entire surface of the shelf and having an upper end closed and connected to the barrier agent supply pipe 6100 and spraying the barrier agent toward the sidewall 1a of the power tunnel 1; And a plurality of rightwardly directed spray holes (6200) disposed parallel to the right side of the sidewall direction spraying pipe (6200) and connected to the blocker supply pipe (6100) A plurality of right-side spraying tubes 6300 provided in parallel to the left side of the sidewall-direction spraying tubes 6200 and connected to the blocking agent supply pipe 6100 at an upper end thereof, The left direction spray hole 641 And the left side directional injection pipe 6300 and the left side directional injection pipe 6400 are connected to the blocking agent supply pipe 6100 in a manner such that the side wall direction injection pipe 6200, the right direction injection pipe 6300, Or at the same time, the injection direction control valve 6500,
The sidewall direction injection pipe 6200, the right direction injection pipe 6300, and the left direction injection pipe 6400 are disposed at left and right positions at a position where the temperature sensor TS is installed,
The injection direction control valve 6500 is composed of a four-port four-position solenoid valve,
The four ports are formed at one side and have an inlet port P0 to which the blocking agent supply pipe 6100 is connected and a first outlet port P1 formed at the other side to which the sidewall directional injection pipe 6200 is connected, A second outlet port P2 to which the spray tube 6300 is connected and a third outlet port P3 to which the left direction spray tube 6400 is connected,
In the fourth position, the inlet port P0, the first outlet port P1, the second outlet port P2, and the third outlet port P3 are all closed to form the sidewall-direction spray tube 6200, the right- The first outlet port P1 and the second outlet port P2 are connected to the inlet port P0 so as to prevent the blocking agent from being injected in the side wall direction 6300 and the left directional injection pipe 6400, The first outlet port P1 and the third outlet port P3 are connected to the inflow port P0 so that the blocking agent is injected from the injection port 6200 and the rightward directional injection pipe 6300, A third position in which the blocking agent is injected from the directional injection pipe 6200 and the left directional injection pipe 6400 and a third position where the first outlet port P1 and the second outlet port P2 and the third outlet port P3 And a fourth position connected to the inlet port P0 so that the blocking agent is injected from the sidewall direction injection tube 6200, the right direction injection tube 6300 and the left direction injection tube 6400, Real-time remote diagnostic system to the underground distribution lines.

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