KR101817984B1 - Remote system for realtime 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, and more particularly, to a system for remotely diagnosing an underground power distribution line in real time, capable of protecting the system by allowing only the authorized person to access by enhancing access security to a power line communication device in the remote diagnosis system capable of diagnosing the underground power distribution line in real time by measuring the state of the underground power distribution line and transmitting measurement information to a management server at a remote place through power line communication (PLC), previously preventing confusion or commercial abuse by information stealing, and previously preventing a problem due to an information leakage by quickly taking measures and securing evidence data even if an information stealing accident occurs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote diagnosis system for underground distribution lines,

[0001] The present invention relates to a real-time remote diagnosis system for underground distribution lines in distribution technology, and more particularly, to a system for measuring a state of an underground distribution line and transmitting measurement information to a management server at a remote site through a power line communication In the remote diagnosis system that can diagnose in real time, the security of access to the power line communication device is strengthened so that only the authorized person is approached, thereby protecting the system, preventing confusion or commercial abuse by information cutting, The present invention relates to a real-time remote diagnosis system of an underground distribution line so as to prevent problems due to information leakage by enabling rapid response measures and evidence data even if they occur.

Since 1973, KEPCO has been working on the underground wiring project to improve electric power supply capacity, prevent accidents caused by natural disasters and improve the beauty and minimize the harmful electromagnetic wave caused by high voltage lines. (NDIS). However, it is only a matter of grasping the status of the facilities of the processing line and the underground distribution line, and the countermeasure against the accident by the underground distribution line is insufficient.

Currently, electric and electric fire accidents occur frequently in the underground distribution line due to defects of the distribution line itself, disconnection due to excavation work, damage due to overcurrent, and defective connection.

Therefore, KEPCO is monitoring the excavation site through the jurisdiction area of the Yongyuan Circle as part of the excavation work to prevent trauma to the underground distribution line during the excavation work. If there is an abnormality in the underground distribution line, an automatic switchgear We are dealing with accidents in a way that cuts off the power supply and dispatches them on site.

However, such a management method is incapable of real-time recognition of an accident and quick response thereto, and further, there is a problem that the aforementioned thief power can not be detected.

To improve this, Korean Patent Registration No. 10-0697859 (Mar. 14, 2007) 'Real-time remote diagnosis system using underground distribution line using power line communication' has been disclosed.

Nevertheless, in the case of the registered patent, there is a disadvantage in that it is easy to cut out the necessary information stored in the memory because access to the memory is easy, which is very weak in security.

Korean Patent No. 10-0697859 (Mar. 14, 2007) 'Real-time remote diagnosis system using underground distribution line using power line communication'

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to provide a method and apparatus for real-time diagnosis of an underground distribution line by measuring a state of an underground distribution line and transmitting measurement information to a management server at a remote site through a PLC It is possible to protect the system by allowing access only to the authorized persons by enhancing the access security from the remote diagnosis system to the power line communication device, preventing confusion or commercial abuse by information cutting, and prompt response And to provide a real-time remote diagnosis system of an underground distribution line so as to prevent a problem caused by leakage of information due to the provision of measures and evidence data.

The power line communication apparatus 100 includes a manhole branch point, a ground switch 40, a ground bank 50, and a power line of a customer, And a management server (200) for receiving status information of underground power distribution lines from a power line communication (PLC), the status information including at least one of a current amount, a leakage amount, an over current amount, a power usage amount, A power line communication apparatus (100) comprising a CT (current transformer) or a ZCT (video converter) circuit and connected to a power lead line of the manhole break point, a ground switch, a ground bank, (110); A power line communication modem unit 120 for performing power line communication with the management server 200; A detecting unit (130) for measuring a current amount of a power line connected to the connection unit; A control unit (140) for controlling the power line communication modem unit and the detection unit; And a power supply unit 150 for converting and supplying a voltage supplied from the power line to a power source required for the power line communication modem unit, the detection unit, and the 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 of the transmission / reception data input / output to / from the signal processing module through the power line. The signal conversion module 124 provides the controller 140 with the digitized transmission / reception data 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, To output the data input from the coupler module (128) to the signal conversion module (124); The controller 140 further includes a memory 142 and generates state information based on the amount of current received from the detector 130. The state 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 power line communication apparatus 100 has a door (DOR) opening from the outside to the inside and a worker can enter and exit the door. A keypad 510 is embedded in a front surface of the door DOR, A security controller 520 with a memory is embedded in a lower portion of the keypad 510 and an alarm 530 is installed on one side of the keypad 510. The security controller 520 is installed on the keypad 510, And a wireless communication module 540 for transmitting the security key generated by the security controller 520 to the smartphone set under the control of the control unit 520. A stereo camera 550 is installed at the upper end of the front face of the door DOR, Is installed to operate under the control of the security controller (520); A frame block 560 is fixed to the inside of the upper frame of the housing HOS with an interval from the upper end of the door DOR and a pair of supporting pieces 562 And a cylindrical bushing 564 that performs a bearing function is fixed to the support piece 562. The bushing 564 is rotatably assembled with the operation rod 566 inserted therein, A locking block 570 is fixed to the inner surface of the locking plate 568, and the door (DOR) 568 is fixed to the inner surface of the locking plate 568, A block fitting groove 572 having a size corresponding to that of the fitting block 570 is formed on the inner surface of the upper end of the bushing 564, The driven gear 574 is fixed, and the driven gear 574 is driven by the drive gear 576 And the driving gear 576 is connected to a rotary motor 578 which is rotationally driven in accordance with a control signal of the security controller 520. The rotary motor 578 is connected to one end face of the frame block 560 One end of the actuating piece 582 is integrally fixed to the other end of the actuating rod 566 and one end of the coil spring 584 is fixed to the other end of the actuating piece 582. [ A spring fixture 586 is fixed to the opposite end face of the motor base 580 of the frame block 560 and the other end of the coil spring 584 is fixed to the spring fixture 586, A locking groove 562 is formed at the center of the lower surface of the block fitting groove 572. The lock plate 568 is formed with a groove 590 having a rectangular shape of a predetermined size, 592 are integrally protruded and locking grooves 594 are formed on one side surface of the lock block 592 And a locking bar 598a which protrudes into the locking groove 594 in accordance with the control signal of the security controller 520 on the inner side of the door DOR with a gap from the locking groove 594, And a locker (598) is installed in the underground distribution line.

According to the present invention, a remote diagnosis system capable of real-time diagnosis of underground distribution lines by measuring the state of underground distribution lines and transmitting measurement information to a management server at a remote place through a PLC, To protect the system by accessing only the authorized persons, to prevent confusion and commercial abuse by information cutting, to promptly take countermeasures and to acquire evidence even if information incidents happen, It is possible to obtain an effect of preventing the above-mentioned problems.

FIG. 1A is an illustration showing an underground wiring line system being constructed by KEPCO,
FIG. 1B is a photograph showing the ground switch shown in FIG. 1A,
Fig. 1C is a photograph showing the ground bank shown in Fig. 1A,
FIG. 2A is a configuration diagram showing a power line communication apparatus according to the present invention,
FIG. 2B is a detailed configuration diagram showing the power line communication modem unit shown in FIG. 2A,
3 is a configuration diagram showing a remote diagnosis system with a ground distribution line according to the present invention.
FIG. 4 is a diagram illustrating an example in which security of a power line communication apparatus according to the present invention is enhanced. FIG.
5 is an exemplary view showing an example of a security enhancing unit according to the present invention.
Fig. 6 is an exemplary diagram excerpted from the main part of Fig. 5;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

The present invention utilizes the above-mentioned prior art patent No. 0697859 as it is. Therefore, the features of the device configuration described below are all those described in Patent No. 0697859.

However, the present invention is characterized in that the additional embodiment portion which improves a specific constituent part in order to achieve the object of the constitution disclosed in the above-mentioned Japanese Patent No. 0697859 is the most essential constitutional feature.

Therefore, the device structure, characteristics and operation relationship described below will be referred to as the contents of the above-mentioned JP 0697859, and the configuration related to the main features of the present invention will be described in detail at the rear end.

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. 1B) 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. 1C) 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. 3) provided in the power management station 10, a remote diagnosis system capable of real-time diagnosis of the 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 connected to the ground line switch 40 and the power line of the ground bank 50 (for example, terminals of Figs. 1A and 1B) A power line communication modem unit 120 for performing power line communication with the management server, a detection unit 130 for measuring a current amount of the power line, a power line communication modem unit And a control unit 140 for controlling the detecting unit 130 and the voltage of the power line supplied through the connection unit 110 to a power required for the power line communication modem unit 120, And a power supply unit 150 for supplying power.

As shown in FIG. 2B, the power line communication modem unit 120 includes a signal conversion module 124 for determining an operation timing according to the clock pulse 122, and a signal conversion module 124 for processing the transmission / reception data input / 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 control unit 140, and transmits and receives analogized transmission / reception data to / from the signal processing module 126, and converts the transmission / reception data into analog data Digital to Analog Converter) function and ADC (Analog to Digital Converter) function to convert the transmitted / received data into 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 controller 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 detection unit 130 measures the current flowing through the power line connected to the connection unit 110 and provides the measurement value to the control unit 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 control unit 140 according to a characteristic aspect of the present invention calculates the amount of electric current based on the measurement value received from the detection unit 130, the amount of electric current leakage, the amount of overcurrent, the amount of electric power used, the amount of the thief current, 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 has the meaning of a unique identifier for allowing the management server to identify each power line communication apparatus 100 provided in the plurality of terrestrial switches 40 and the ground bank 50.

The controller 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. 3 can be configured to implement this.

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 >

The present invention is based on the above-described configuration and allows the status information generated and stored in the memory 142 to be transferred to a portable memory such as USB immediately when necessary. However, the power line communication apparatus 100 The security enhancing unit 500 of the type shown in FIG.

The security enhancing unit 500 is a type of enclosure (HOS) in which the power line communication apparatus 100 has a door (DOR), and particularly, it is an enclosure having a considerable size into which an operator can enter. The door (DOR) is opened from the outside to the inside for security enhancement.

A keypad 510 is embedded in the front of the door DOR and a security controller 520 is mounted on the lower side of the keypad 510. A keypad 510 And a wireless communication module 540 for transmitting the security key generated by the security controller 520 to the smartphone set under the control of the security controller 520 is provided on the keypad 510. [ .

In addition, a stereo camera 550 is installed at the upper end of the front surface of the door DOR to be operated under the control of the security controller 520. The stereo camera 550 is a kind of a type Is an image pickup means.

In particular, the security controller 520 reads the authorized accessor by using the machine learning method using the difference between the left eye image and the right eye image. To this end, the memory of the security controller 520 stores a photograph image Should be stored.

In addition, machine learning technique is one of machine learning algorithms that collects and analyzes data by computer itself and predicts the future. It first learns computer by algorithm and then inputs new data to predict the result. Is a technique for analyzing vast amounts of big data to judge future actions and possibilities.

Accordingly, by applying this technique, the security controller 520 can capture a person who accesses and learns a variety of access-authorized photographs registered in the memory with the stereo camera 550, and reads out the same to accurately read registered persons It is predicted that the utility will be further increased.

Of course, this is a preferred embodiment. Of course, the identity of the passenger can be confirmed by using the ID card, and security can be enhanced by transmitting the security code to the smartphone registered by the identified passenger.

At this time, the security controller 520 performs a control function as a kind of microcomputer. When the identity of the passenger is confirmed, the security controller 520 transmits the security code using the wireless communication module 540 to the registered smart phone matched with the access admittent do.

In this case, the security code can be combined only in numbers, and a combination of numbers and special characters.

For example, if a security code of '588445' is transmitted to a smartphone of an access grantor identified by a machine learning technique, if the person who is waiting for access is a legitimate person, the security code can be confirmed through his smartphone, The code can be keyed using the keypad 510 to generate a security clear signal.

If an error occurs more than three times and a security clear signal can not be generated, it is determined that the security clear signal has been stolen, and alarming through the alarm 530 can be prevented.

At this time, since the stereo camera 550 has photographed all of the impressions of the person who wants to go in and out, it becomes evidence when a nuisance occurs. In addition, the photographed image or image is stored in the memory.

5 and 6, a frame block 560 is fixed to the inside of the upper frame of the enclosure HOS with an interval from the upper end of the door (DOR).

In addition, a pair of support pieces 562 are fixed to both sides of the front surface of the frame block 560 with an interval therebetween.

A cylindrical bushing 564 for performing a bearing function is fixed to the support piece 562. The bush 564 is rotatably assembled with the operation rod 566 inserted therein. One end of a locking plate 568 of a rectangular plate shape is integrally fixed and can rotate together.

In addition, a fitting block 570 made of an elastic material is fixed to the inner surface of the locking plate 568 so as to increase the adhesion with the door DOR.

In addition, a block fitting groove 572 having a size corresponding to that of the fitting block 570 is formed on the inner surface of the upper end of the door (DOR), that is, the side contacting the locking plate 568 .

At this time, the fitting block 570 is formed to have a smaller size than the locking plate 568.

A driven gear 574 is fixed to one end of both ends of an operating rod 566 passing through the bushing 564 and a driving gear 576 is coupled to the driven gear 574, 576 are connected to be rotatably driven by a rotary motor 578 and the rotary motor 578 is fixed on a motor base 580 protruding from one end face of the frame block 560.

One end of the actuating piece 582 is integrally fixed to the other end of the actuating rod 566 and one end of the coil spring 584 is fixed to the other end of the actuating rod 582.

The spring fixture 586 is firmly fixed to the opposite end face of the motor base 580 of the frame block 560 and the other end of the coil spring 584 is fixed to the spring fixture 586.

In addition, to increase the locking capability of the locking plate 568, a groove 590 having a rectangular shape of a predetermined size is formed at the bottom center of the block fitting groove 572.

In addition, a lock block 592 having a size corresponding to the groove 590 is integrally formed at the center of the lower end surface of the locking plate 568.

However, the lock block 592 should be formed such that its thickness is twice as thick as the depth of the groove 590, and protruded when a part of the lock block 592 is inserted into the groove 590.

This is for securing through a solenoid lock 598, which will be described later, with a lock groove 594 formed on one side of the exposed portion, more precisely on the side facing the solenoid lock 598.

Here, the solenoid locker 598 is locked when the lock bar 598a moves in and out of the lock groove 594 while the power supply direction is changed according to a control signal of the security controller 520, It is easy to understand that the lock is released when it comes out and it is a variation of the solenoid valve.

The remote controller REC is connected to the security controller 520 and controlled by the remote controller REC. The remote controller REC is connected to the remote controller REC, And outputs only the on / off signal to the switch (RSW).

That is, when the remote control unit (REC) outputs an ON signal, the remote control switch (RSW) is electrically switched to operate the solenoid locker 598 to release the locking, and the remote control unit Off signal, the remote control switch RSW switches to interrupt the electricity and locks the solenoid locker 598 by stopping the operation thereof.

For this, the remote control unit REC and the remote control switch RSW are preferably installed facing each other on the frame block 560 so as to receive a control signal, and it is preferable to control the TV, audio, The detailed description of the control will be omitted.

As described above, the security controller 520 releases the lock state of the solenoid locker 598 when the identity is confirmed and the security code is matched and the security release signal is generated.

Accordingly, the locking plate 568 can be opened.

At the same time, the remote control unit (REC) transmits an open signal to the remote control switch (RSW) according to the control signal of the security controller (520), and the remote control switch (RSW) And rotates in the opening direction, for example, clockwise.

Then, the driving gear 576 is also rotated in a clockwise direction, and the driven gear 574, which is coupled to the driven gear 574 in the form of a spur gear, is rotated in the counterclockwise direction to rotate the working rod 566 in the same direction, 568) by 90 degrees in the counterclockwise direction.

At this time, as the coil spring 584 is stretched, the actuating piece 582 is lifted in the counterclockwise direction to accumulate the elastic restoring force.

The door (DOR) can be opened because the locking plate (568), which prevents the door (DOR) from being opened by this operation, is opened and the obstruction is eliminated.

Here, the door (DOR) is opened inward.

When the door DOR is closed, the security controller 520 controls the remote control unit REC to send a close signal to the remote control unit REC, and the remote control switch RSW that receives the close signal And controls the rotation motor 578 to rotate in the opposite direction described above, that is, the closing direction.

Then, through the above-described reverse operation, the locking plate 568 maintains the closed state as in the initial state.

Thus, when the locking plate 568 is completely closed, the solenoid locker 598 is operated to complete the locking function.

In this case, the solenoid locker 598 may be controlled by a timer so as to be automatically operated after a predetermined time elapses after the rotation motor 578 is driven. Alternatively, a separate sensor or a limit switch may be provided, May come in contact with the inner surface of the block fitting groove 572, as shown in FIG.

Particularly, when the locking plate 568 is closed, the coil spring 584 is contracted and pulled, so that the closing force can be strengthened to maintain close contact, thereby enhancing the locking force.

In addition, the frame block 560 and the locking plate 568 are made of a mixture of 5% by weight of 1-chloro-2,3-epoxypropane, 5% by weight of methyltrimethoxysilane and 50% by weight of polyvinyl alcohol 10% by weight of a silicone resin, 10% by weight of a silicone resin, and the rest of the polycarbonate resin.

Here, 1-chloro-2,3-epoxypropane is added as a chlorine-based material having a high reactivity for stabilizing the reaction of the composition, and methyltrimethoxysilane is improved in durability by strengthening the bonding force between emulsified materials by hydrophobicity .

In addition, polyvinyl alcohol is added to enhance the acid resistance and chemical resistance, so as to increase the bonding force between components. The silicone resin is a polymer mainly composed of silicon and oxygen bonds, and enhances the bonding force to strengthen the binding force between the constituents. And the polycarbonate resin is a base resin.

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: Detection unit 140:
142: memory 200: management server
300: Portable information terminal 400a: Mobile carrier
400b: satellite

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 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 detecting unit (130) for measuring a current amount of a power line connected to the connection unit; A control unit (140) for controlling the power line communication modem unit and the detection unit; And a power supply unit 150 for converting and supplying a voltage supplied from the power line to a power source required for the power line communication modem unit, the detection unit, and the 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 of the transmission / reception data input / output to / from the signal processing module through the power line. The signal conversion module 124 provides the controller 140 with the digitized transmission / reception data 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, To output the data input from the coupler module (128) to the signal conversion module (124); The controller 140 further includes a memory 142 and generates state information based on the amount of current received from the detector 130. The state 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 power line communication apparatus 100 has a door (DOR) opening from the outside to the inside and is in the form of a housing (HOS)
A keypad 510 is embedded in the front of the door DOR and a security controller 520 having a memory mounted thereon is embedded below the keypad 510. An alarm 530 is provided on one side of the keypad 510, And a wireless communication module 540 for transmitting the security key generated by the security controller 520 to the smartphone set under the control of the security controller 520 is provided on the keypad 510 A stereo camera 550 installed at an upper end of the front surface of the door DOR so as to be operated under the control of the security controller 520;
A frame block 560 is fixed to the inside of the upper frame of the housing HOS with an interval from the upper end of the door DOR and a pair of supporting pieces 562 And a cylindrical bushing 564 that performs a bearing function is fixed to the support piece 562. The bushing 564 is rotatably assembled with the operation rod 566 inserted therein, A locking block 570 is fixed to the inner surface of the locking plate 568, and the door (DOR) 568 is fixed to the inner surface of the locking plate 568, A block fitting groove 572 having a size corresponding to that of the fitting block 570 is formed on the inner surface of the upper end of the bushing 564, The driven gear 574 is fixed, and the driven gear 574 is driven by the drive gear 576 And the driving gear 576 is connected to a rotary motor 578 which is rotationally driven in accordance with a control signal of the security controller 520. The rotary motor 578 is connected to one end face of the frame block 560 One end of the actuating piece 582 is integrally fixed to the other end of the actuating rod 566 and one end of the coil spring 584 is fixed to the other end of the actuating piece 582. [ A spring fixture 586 is fixed to the opposite end face of the motor base 580 of the frame block 560 and the other end of the coil spring 584 is fixed to the spring fixture 586, A locking recess 569 is formed at the center of the lower surface of the block fitting groove 572. A locking block 568 having a size corresponding to the groove 590 is formed at the center of the lower end surface of the locking plate 568 592 are integrally protruded and locking grooves 594 are formed on one side surface of the lock block 592 And a locking bar 598a which protrudes into the locking groove 594 in accordance with the control signal of the security controller 520 on the inner side of the door DOR with a gap from the locking groove 594, And a locker (598) is installed on the underground distribution line.

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