KR20210117201A - Remotely Controlled Rectifier System for Piping Damage Detection and control method using the same - Google Patents

Abstract

The present invention relates to a smart rectification system and a control method of the smart rectification system. The smart rectification system comprises: a rectifier (100); and a control terminal (200) including a remote display module (210). Therefore, the smart rectification system prevents and detects damage in a pipe.

Description

Remotely Controlled Rectifier System for Piping Damage Detection and control method using the same}

The present invention relates to a remote control type smart rectification system for detecting damaged parts of a pipe covering including both a DCVG exploration function and an ACVG exploration function, and a control method using the same.

If the polyethylene coating of the metal pipe buried underground is damaged, a lot of electrical current is consumed, and if the electrical corrosion performance is defective, the pipe corrosion proceeds quickly.

Therefore, in order to know the damaged part of the coating, the inspection of the damaged part of the coating of the pipe is performed. The exploration method is largely divided into two types: a DCVG (Direct Current Voltage Gradient) method and an ACVG (Alternating Current Voltage Gradient) method.

For example, the ACVG method is used rather than the DCVG method in the interference of other underground facilities with cathodic protection such as water supply, DC subway leakage current interference, and parallel piping sections with cathodic protection, etc. DCVG method is used in AC interference area.

Equipment for investigating pipe covering damage can be largely divided into DCVG equipment for DCVG method exploration and ACVG equipment for ACVG method exploration. Currently, a DC output device or AC output device is installed in the exploration section to investigate the damaged part of the covering of the buried pipe, and a rectifier is used for the DC output device (a separate DC output device is installed in the sacrificial anode method section), but ACVG method exploration For this purpose, the rectifier power must be turned off (DC output device off) and a separate AC output device must be installed in the exploration section.

That is, the AC output device for ACVG exploration is not separately installed in the existing rectifier, so there is a problem that separate equipment other than the existing rectifier is required for ACVG exploration.

1 shows the use of connecting an AC output device to an existing rectifier.

As shown in FIG. 1, when an AC output device is connected to an existing rectifier and used, the maximum output of the AC output device is 100V, 3A, and there is a risk of human damage such as electric shock due to operator negligence, and the DC output is not completely blocked. If AC is output from the device, there is a risk of material damage such as equipment damage.

In addition, it is impossible to check the status of the output device in the long-distance detection section when the signal does not reach or there is a problem with the output device during the inspection of the damaged part of the pipe covering.

When using the ACVG method and the DCVG method, there is a problem such as mutual interference. In order to change the ACVG method exploration method to the DCVG method or the DCVG method to change the DCVG method to the ACVG method, the output device in use must be removed and used by moving a long distance. It is very inefficient and takes a lot of time to switch to an output device that does this. Therefore, the DC output device and AC output device for detecting damage to the pipe coating are directly mounted on the rectifier, and the control function and IOT communication method for each search are used. If provided, it is possible to effectively increase the work efficiency of the workers for the inspection of pipe covering damage by selecting the DCVG exploration or ACVG exploration in the way they want at the exploration site.

For example, Korean Patent Document No. 10-0652077 relates to a rectifier control device for an electric method, and the recognition of using a bidirectional rectifier but having an output device for ACVG exploration, and remote control of the rectifier As there is no awareness of this, there is a problem in that a separate equipment is required when an operator uses ACVG equipment to investigate pipe covering damage.

For example, Korean Patent Document No. 10-0945013 relates to an electric control device and method, and a system using the same, and there is no awareness of having an output device for ACVG exploration, so an operator may damage the pipe covering. When using ACVG equipment for exploration, there is a problem that separate equipment is required.

(Patent Document 1) Korean Patent Document No. 10-0652077

(Patent Document 2) Korean Patent Document No. 10-0945013

The present invention has been devised to solve the above problems.

Specifically, regardless of the type of exploration methods such as ACVG method and DCVG method, it is to perform pipe covering damage exploration and to control without mutual interference.

In addition, it is to perform pipe covering damage investigation through remote control of the smart rectification system.

In addition, by providing a display module that can monitor and control the smart rectification system, the operator can easily control the rectifier.

An embodiment of the present invention for solving the above problems is a smart rectification system for preventing and detecting damage in a pipe, the rectifier 100; and a control terminal 200 located remotely from the rectifier 100 and including a remote display module 210 for transmitting remote input information to the rectifier 100. a communication module 110 for receiving the remote input information from the control terminal 200; a local display module 120 for generating local input information; an output module 130 including a DC output unit 131 for outputting DC power, an AC output unit 132 for outputting AC power, and a piping type DC output unit 133; and receives any one of the remote input information or the local input information, and turns on the DC output unit 131 and the AC output unit 132 according to any one of the remote input information or the local input information. a control module 140 for controlling either (on) or off (off); Including, when the selection information is input to the rectifier 100, the local display module 120 generates it as the local input information, and the remote display module 210 provides the selection information to the control terminal 200 is input, it is generated as the remote input information, the selection information includes DCVG selection information and ACVG selection information, and the local display module 120 transmits the local input information to the control module 140, , the remote display module 210 transmits the remote input information to the control module 140 through the communication module 110, and the control module 140 receives the remote input information or the local input information. If any one includes the ACVG selection information, the DC output unit 131 is turned off and the AC output unit 132 is controlled to be turned on, and the control module 140 controls the remote input information or the local input information. If any of the above includes the DCVG selection information, it provides a smart rectification system that controls to turn off the AC output unit 132 and turn on the DC output unit 131 .

In an embodiment, the DCVG selection information includes: discovery method switching selection information including an ACVG discovery switching mode; control selection information including a local mode or a remote mode; manual control for adjusting the voltage of the DC output unit 131 . Mode selection information including an automatic mode for adjusting a mode and a method potential value; Operation selection information including whether the rectifier 100 is operated; Interrupter operation selection information including an on-off time of the interrupter (131a); and GPS status display selection information including GPS and SYNC Time according to the location of the rectifier 100; and, when the control selection information includes a remote mode, the mode selection information, the operation selection information, and the interrupter operation selection information are deactivated in the local display module 120, and the control selection information indicates the local mode. If included, the mode selection information, the operation selection information, and the interrupter operation selection information are deactivated in the remote display module 210, and the DCVG selection information is output, and the control selection information is in a remote mode or a local mode. In the case of including any one, when the operation selection information outputs an operation stop of the rectifier 100, the search change selection information may be activated.

In an embodiment, the ACVG selection information includes: discovery method switching selection information including a DCVG discovery switching mode; mode selection information; and operation selection information for selecting whether to operate the rectifier 100 .

In one embodiment, the DC output unit 131 outputs 60V/30A, the AC output unit 132 is standardized to output 80V/2A, and the rectifier 100 is the DC output unit 131 ) operates the relay 131b to measure a small current when the current output from the DC output unit 131 exceeds 0A and is less than 5A, and the rectifier 100 measures a large current when the current output from the DC output unit 131 is 5A or more and 30A or less The relay 131b may be operated to do so.

In addition, as a method of controlling a smart rectification system, the output module 130 further includes a piping type DC output unit 133, (a) operating the smart rectification system in a piping type DC output mode; (b) operating the smart commutation system in DCVG exploration mode; and (c) operating the smart rectification system in the ACVG exploration mode, wherein the step (a) includes: (a1) applying power to the rectifier 100; (a2) checking the DC value of the piping type DC output unit 133; and (a3) confirming that the AC output unit 132 is turned off, and controlling the DC value of the piping type DC output unit 133;

In one embodiment, the step (b), simultaneously with the step (a3), (b1) setting the on-off time of the interrupter (131a) of the DC output unit (131); (b2) setting the on-off time of the relay 131b of the DC output unit 131 to the on-off time of the interrupter 131a set in the step (b1); (b3) confirming that the AC output unit 132 is turned off; and (b4) operating the DC output unit 131 and performing DCVG exploration to check the DC value of the piping type DC output unit 133; may include.

In one embodiment, the step (c), simultaneously with the step (a3), (c1) confirming that the DC output unit 133 is off; (c2) inputting a voltage, a current value, and an output frequency ratio to the AC output unit 132; (c3) calculating an output value using the value input in step (c2) and outputting the AC output unit 132 as the calculated output value; and (c4) checking the DC value of the piping type DC output unit 133 by operating the AC output unit 132 and performing ACVG exploration.

In an embodiment, when the selection information is DCVG selection information, step (b) may be performed, and if the selection information is ACVG selection information, step (c) may be performed.

In an embodiment, the step (b) includes: (b5) resetting the smart rectification system when the interrupter 131a stops operating differently from the user control signal; (b6) resetting the most recent on-off time among the on-off times of the interrupter 131a set in step (b1) to the on-off time of the relay 131b in step (b2); and (b7) performing the step (b4) again using the most recent output voltage among the output voltages of the DC output unit 131 operated in the step (b4).

In the smart rectification system according to the present invention, an operator can perform pipe covering damage exploration regardless of the type of exploration method.

In addition, it is possible to control the output between the DC output unit and the AC output unit of the smart rectification system, thereby preventing each output unit from being damaged by mutual interference.

In addition, it is possible to perform pipe covering damage exploration through the remote control of the smart rectification system, thereby effectively increasing the work efficiency of the worker for pipe covering damage exploration.

1 is a view showing an ACVC exploration equipment connected to a conventional externally powered rectifier.
2 and 3 are schematic diagrams showing a smart rectification system according to the present invention.
4 and 5 are diagrams for explaining a local display module according to the present invention.
6 is a photograph showing a local display module according to the present invention.
7 is a photograph showing that the smart rectification system according to the present invention is installed in the field.
8 is a view for explaining a remote display module according to the present invention.
9 is a flowchart illustrating a control method of a smart rectification system according to the present invention.
10 and 11 are flowcharts for explaining the piping method DC output mode and DCVG exploration mode, respectively.
12 is a view showing a control method according to the operation of the interrupter of the smart rectification system according to the present invention.
13 is a flowchart for explaining the ACVG exploration mode.
14 is a view showing a control method according to the current value measured in the smart rectification system according to the present invention.

In some cases, well-known structures and devices may be omitted or shown in block diagram form focusing on core functions of each structure and device in order to avoid obscuring the concept of the present invention.

In addition, in describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And the terms to be described later are terms defined in consideration of the functions in the embodiment of the present invention, which may vary according to the intention or custom of the operator, the operator, and the like. Therefore, the definition should be made based on the content throughout this specification.

Hereinafter, "output" means voltage/current/method potential value and the like. For example, DC output means DC voltage/current/method potential value.

Hereinafter, "user control signal" means a signal transmitted by a user of the system according to the present invention to start or stop the operation of the corresponding output unit in order to control the DC output unit or the AC output unit. For example, unlike the user control signal, if the interrupter 131a stops the operation, this means that the system is suddenly stopped due to an unexpected situation by the user.

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

1. Description of the configuration of the smart rectification system

2 to 8, the configuration of the smart rectification system according to the present invention will be described.

The smart rectification system according to the present invention includes a rectifier 100 and a control terminal 200 .

The rectifier 100 is a device that prevents damage (corrosion) of the pipe coating and supplies AC or DC power so that the pipe coating damage detection device detects damage to the pipe coating.

The rectifier 100 includes an output module 130 and a control module 140 .

The output module 130 is a module that outputs DC power or AC power.

The output module 130 includes a DC output unit 131 for outputting DC power, an AC output unit 132 for outputting AC power, and a piping type DC output unit 133 for outputting DC power. The output module 130 may output power according to a predetermined standard of the rectifier 100 . For example, the DC output unit 131 and the piping type DC output unit 133 may output a maximum of 60V/30A, and the AC output unit 132 may output a maximum of 80V/2A, but is not limited thereto. .

The DC output unit 131 includes an interrupter 131a and a relay 131b, and outputs a DC voltage for DCVG exploration.

The AC output unit 132 outputs an AC voltage for ACVG exploration.

The piping method DC output unit 133 outputs a DC voltage for the piping method.

At this time, the piping type DC output unit 133 may output DC of the same standard as the DC output unit 131 , but is not limited thereto.

The control module 140 is a module for controlling the rectifier 100 , and may control the output module 130 , and may control the interrupter 131a and the relay 131b mounted in the rectifier 100 .

The control module 140 turns on or off the output of any one or more of the output modules 130 , and the aforementioned DC output unit 131 , AC output unit 132 , and piping type DC output unit It is possible to adjust the on or off of the output of (133).

The output lines of the DC output unit 131 and the AC output unit 132 are commonly tied to the city gas pipe, but if the DC output unit 131 and the AC output unit 132 are not accurately controlled, the DC output unit 131 ), the AC output unit 132 may be damaged.

Referring to FIG. 3 , it is shown that the control module 140 controls the output module 130 , the interrupter 131a and the relay 131b.

As the control module 140 controls the output between the DC output unit 131 and the AC output unit 132 , it is possible to prevent each output unit from being damaged by each other.

That is, the control module 140 may turn off the output unit used in the unselected mode under the control of the control module 140 when the mode is changed between the DCVG exploration mode and the ACVG exploration mode of the rectifier 100 to be described later.

In addition, the control module 140 may monitor the output of the interrupter 131a and monitor the current values of the DC output unit 131 and the AC output unit 132 in real time. A detailed description thereof will be given later.

In addition, the control module 140 receives the local input information and the remote input information from the local display module 120 and the remote display module 210 to be described later, respectively, and the output module 130 according to the local input information or the remote input information. can be controlled. A detailed description thereof will be given later.

At this time, the rectifier 100 may be loaded with a program for controlling the DC output unit 131 , the AC output unit 132 , and the piping type DC output unit 133 separately in addition to the control by the control module 140 . .

The rectifier 100 further includes a communication module 110 and a local display module 120 .

The communication module 110 is a module that is connected to the control terminal 200 to be described later and receives remote input information from the control terminal 200 .

The communication module 110 may receive remote input information and transmit it to the control module 140 .

4 to 6 , the local display module 120 will be described. The local display module 120 refers to a module that displays selection information and state information of the rectifier 100 to the user as an input display device.

The selection information means information that a user can select for controlling the rectifier 100 . The selection information includes DCVG selection information and ACVG selection information. The user may select the selection information through the visible screen of the local display module 120 . The local display module 120 transmits the local input information generated according to the selection information selected by the user to the control module 140 .

At this time, the DCVG selection information is not limited to the selection of the DCVG exploration mode, and the method potential can be adjusted in the automatic mode in the mode selection information included in the DCVG selection information to be described later, so that the piping method DC output mode can be controlled. . This will be described later.

The status information is information for viewing the current state of the rectifier 100 other than the selection information that can be selected by the user, and means information for monitoring the rectifier 100. However, the present invention is not limited thereto. The status information shows DCVG status information when DCVG discovery mode is selected, and shows ACVG status information when ACVG discovery mode is selected.

The local display module 120 may display one or more selection information and status information.

DCVG selection information is displayed on the initial screen of the local display module 120 .

4 illustrates a screen of the local display module 120 in which the DCVG search mode is selected. In this case, the initial screen in FIG. 4 may be the DCVG search mode, but is not limited thereto.

The local display module 120 may display one or more DCVG selection information.

The DCVG selection information may include search method switching selection information, control selection information, mode selection information, operation selection information, interrupter operation selection information, and GPS status display selection information.

The exploration method conversion selection information includes ACVG exploration conversion mode, and the user can select the ACVG exploration conversion mode to switch the exploration method from DCVG exploration mode to ACVG exploration mode.

As the search method change selection information, DCVG selection information is output, and when control selection information to be described later is a remote mode, when operation selection information to be described later outputs operation stop of the rectifier 100, the search change selection information is activated. That is, the ACVG search switching mode may be activated when a stop operation of the rectifier 100 is output when a control selection to be described later is selected. In addition, the ACVG exploration conversion mode may be activated when PCM use is checked in the environment setting, but is not limited thereto. That is, if the ACVG exploration conversion mode is clicked after the exploration method conversion selection information is activated, the ACVG exploration mode screen may appear, but is not limited thereto.

The control selection information includes a local mode and a remote mode, and the user can select and control either the local mode or the remote mode. That is, the user may select either a local mode in which the rectifier 100 is directly controlled in the field using the local display module 120 and a remote mode in which the rectifier 100 is controlled by using the remote display module 210 .

When the remote mode is selected in the local display module 120 , the mode selection information, the operation selection information, and the interrupter operation selection information are inactivated in the local display module 120 . That is, when the local mode is selected, direct control is possible through the local display module 120 , and when the remote mode is selected, direct control cannot be performed through the local display module 120 , and control is performed through the remote display module 210 . can do.

Also, when the local mode is selected in the remote display module 210 , the mode selection information, the operation selection information, and the interrupter operation selection information are deactivated in the remote display module 210 .

The mode selection information includes a manual mode and an automatic mode, and the user may select one of the manual mode and the automatic mode to select the mode.

When the manual mode is selected, the output value of the DC output unit 131 may be adjusted.

When the automatic mode is selected, the anti-corrosion potential value can be adjusted. That is, when the automatic mode is selected, it means that the output value of the piping type DC output unit 133 can be adjusted, and the piping type DC output unit 133 can be controlled on the same screen as the DCVG selection information. it is not

In the operation selection information, whether the operation of the rectifier 100 is executed, operation stop, etc. is selected, the execution of the operation of the rectifier 100 is indicated as RUN in FIG. 4, and the rectifier 100 stops the operation. is displayed as At this time, as described above, in order to switch from the DCVG mode to the ACVG mode, the ACVG mode can be executed only when the operation selection is changed to STOP.

In the interrupter operation selection information, the time of the interrupter 131a is set, and the operation of the interrupter 131a is selected.

The user can change the on-off time of the interrupter 131a and select whether to operate the interrupter 131a through the interrupter operation selection information.

At this time, when the on and off times of the interrupter 131a in FIG. 4 are clicked, a pop-up window for changing the time is displayed. When the START button is pressed, the interrupter 131a operates, and when the STOP button is clicked, the operation stops.

In the GPS status display selection, the GPS according to the position of the rectifier 100 is displayed, and the GPS status display selection in which the SYNC Time is set is set.

In FIG. 4 , when the GPS is normally captured, it is displayed as normal, and when the GPS is not captured, it is displayed as abnormal.

To change the SYNC Time, you need to check Use GPS in the environment settings to use it. In FIG. 4 , when SYNC Time is clicked, a pop-up window appears and the time can be changed, and the interrupter 131a is automatically operated when the set time elapses.

At this time, when the power of the rectifier 100 is turned off and then turned on again, the interrupter 131a must be started. If the interrupter 131a is not operated at the beginning, the GPS state is not captured. In addition, when the Clear button is pressed, it is set to 99:99:99 and the interrupter (131a) operation is not automatically executed.

In addition, the local display module 120 may further provide DCVG state information capable of displaying the current state of the rectifier 100 in addition to the DCVG selection information selectable by the user.

In this case, as described above, the DCVG selection information and the DCVG state information may be displayed on the same screen, but the present invention is not limited thereto.

DCVG status information may include information about the DC output voltage, DC output current, method potential, reference electrode, AC voltage, internal temperature of the rectifier 100, door open status and communication status currently output from the rectifier 100. have.

The communication state means displaying the communication state between the rectifier 100 and the control terminal 200, and the reference electrode means setting or displaying the reference electrode used in the field.

If the door is closed, it may be displayed as green closed, if open, it may be displayed as red open, if communication is normal, it may be displayed as green normal, if it is not, it may be displayed as red or more, but is not limited thereto.

In this case, the information that the user can select in the local display module 120 is not limited to those shown in the description and drawings.

5 shows a screen of the local display module 120 in which the ACVG exploration mode is selected.

As described above, the initial screen of the local display module 120 is set as the DCVG exploration mode screen, so that the DCVG selection information is visible. Thereafter, when the control selection information is selected and the rectifier 100 is stopped, it may be activated.

If the DCVG selection information selects the ACVG exploration conversion mode, the screen is converted to the ACVG mode screen.

In the ACVG screen, the local display module 120 may include search method conversion selection information, mode selection information, and operation selection information as ACVG selection information.

The exploration method conversion selection information includes a DCVG exploration conversion mode, and the user can select the DCVG exploration conversion mode to switch the exploration method from the ACVG exploration mode to the DCVG exploration mode.

In this case, the DCVG search mode may be switched only when the ACVG operation state is the stop operation, but is not limited thereto.

The mode selection information includes a current search mode, an ACVG(E) mode, and an ACVG(L) mode.

Current probe mode is a mode used to probe the location of a pipe.

ACVG(E) mode and ACVG(L) mode are the modes used for cover exploration, and are options to change according to environmental characteristics such as soil or weather during cover exploration.

The operation selection information means selecting whether to operate the rectifier 100 as described above in the DCVG selection information.

In addition, the local display module 120 may further provide ACVG state information capable of displaying the current state of the rectifier 100 in addition to the ACVG selection information selectable by the user. The local display module 120 may provide information about an AC output voltage, an AC output current, a temperature warning, a voltage warning, and a communication state currently output from the rectifier 100 .

The communication state means a communication state between the control module 140 and the AC output unit 132 .

Information that the user can select in the local display module 120 is not limited to the description and illustrated.

In this case, the local display module 120 may mean a graphic user interface (GUI), but is not limited thereto.

6 is a photograph illustrating the local display module 120 located on the outer surface of the rectifier 100 .

7 is a photograph showing that the rectifier 100 is installed in the field.

The smart rectification system according to the present invention may be remotely controlled by the control terminal 200 . The control terminal 200 is a system capable of remotely controlling the rectifier 100 in a wireless/IOT manner, and receives remote input information from a user and transmits it to the communication module 110 of the rectifier 100, and the rectifier 100 ) power, voltage, current and mode can be controlled remotely.

The control terminal 200 includes a remote display module 210 .

The remote display module 210 is a module through which a user can input remote input information, and selection information is inputted by the user.

The remote display module 210 transmits the remote input information generated according to the selection information to the communication module 110 , and the communication module 110 transmits the remote input information to the control module 140 . The remote display module 210 provides selection information by which the user can control the rectifier 100 and state information by which the state of the rectifier 100 can be displayed, similarly to the above-described local display module 120 .

In this case, the remote display module 210 may mean a graphic user interface (GUI), but is not limited thereto.

8 shows a control screen of the remote display module 210 .

The remote display module 210 may include one or more selection information. The DCVG selection information may include search method switching selection information, control selection information, mode selection information, operation selection information, interrupter operation selection information, and GPS status display selection information, and the ACVG selection information includes search method switching mode information and mode selection information. may contain information and action selection information.

Since the selection information of the remote display module 210 is the same as the above-described selection information of the local display module 120 , a detailed description thereof will be omitted.

However, unlike the local display module 120 , the remote display module 210 may select and control one or more of the plurality of rectifiers 100 . For example, referring to FIG. 8 , it is shown that the rectifier 100 can be controlled by inquiring the region where the rectifier 100 is located and the serial number of the rectifier.

In addition, DC output voltage, DC output current, anti-corrosion potential, reference electrode, AC voltage, internal temperature of the rectifier 100 currently output from the rectifier as DCVG state information capable of displaying the state of the rectifier 100 in FIG. 8 , Information on door open status and communication status can be provided, and AC output voltage, AC output current, temperature warning, voltage warning, and communication status information can be provided as ACVG status information.

Since the state information of the remote display module 210 is the same as the state information of the local display module 120 described above, a detailed description thereof will be omitted.

2. Description of the control method of the smart rectification system

The rectifier 100 according to the present invention includes a piping type DC output mode, a DCVG probe mode, and an ACVG probe mode. The performance of the piping method DC output mode, the DCVG probe mode, and the ACVG probe mode in the rectifier 100 and the change of each mode will be described in the following way.

A method of controlling the smart rectification system will be described with reference to FIGS. 9 to 14 .

Referring to FIG. 10, the piping method DC output mode will be described.

The piping method DC output mode is a mode that outputs a DC value for the piping method performed by an external power type rectifier.

The application of power to the rectifier 100 is started, and the piping type DC output mode is performed.

In this case, the power applied to the rectifier 100 may be applied from an external power source.

When power is applied to the rectifier 100 and the piping type DC output mode is performed, the control module 140 checks the DC value of the piping type DC output unit 133 .

The control module 140 checks that the AC output unit 132 is turned off, and checks the DC value of the piping type DC output unit 133 while controlling the piping type DC output unit 133 .

When the local input information or remote input information input to the control module 140 includes a piping type DC output mode, or when information about the mode is not input to the control module 140, the control module 140 is The rectifier 100 is controlled to perform the piping method output mode.

The control module 140 determines whether to change the mode from the piping method DC output mode to one of the DCVG exploration mode and the ACVG exploration mode based on the input information.

Specifically, when the selection information transmitted to the control module 140 is DCVG selection information, the DCVG search mode is controlled, and when the selection information is the ACVG selection information, the ACVG search mode is controlled.

Referring to FIG. 11 , a method of operating the smart rectification system in DCVG exploration mode will be described.

The on-off time of the interrupter 131a of the DC output unit 131 is set.

In this case, the user may set the on/off time of the interrupter 131a by selecting the interrupter operation selection information from the aforementioned local display module 120 and remote display module 210 , but is not limited thereto.

The control module 140 sets the on-off time of the relay 131b of the DC output unit 131 to the on-off time of the interrupter 131a.

The control module 140 confirms that the AC output unit 132 is off.

At this time, the AC output unit 132 may already be in an off state in the aforementioned piping method DC output mode.

The control module 140 checks that the AC output unit 132 is off, and when the AC output unit 132 is turned off, operates the DC output unit 131 to perform DCVG search.

At this time, DCVG exploration is performed according to the existing DCVG exploration method.

When the DCVG exploration is finished, the DC value of the piping type DC output unit 133 may be checked, and the above-described piping type DC output mode may be performed again.

Also, a control method in the case of an operation failure of the interrupter 131a when the selection information includes the DCVG search mode will be described with reference to FIG. 12 .

When diagnosing piping safety DCVG, the interrupter 131a must be operated through the rectifier DC voltage output signal through the piping in order to detect the damaged location of the piping.

At this time, the operation time of the interrupter 131a has a pulse period of at least 0.1 seconds and a maximum of 10 seconds.

During the inspection, the operator conducts the inspection for several hours at a place several kilometers away from the rectifier. If the operation of the interrupter 131a is interrupted due to an unexpected situation, the probe cannot proceed normally, and an inaccurate detection result is caused due to a problem with the interrupter 131a. In this case, the person in charge of the area proceeds with the exploration again, resulting in wasting time and manpower.

In the smart rectification system according to the present invention, in order to solve this problem, when the interrupter 131a stops operating differently from the user control signal, the control module 140 resets the smart rectification system.

In addition, the control module 140 resets the most recent on-off time among the on-off times of the interrupter 131a, and performs DCVG exploration again using the most recent output voltage among the output voltages of the DC output unit 131 . Start.

That is, when the interrupter 131a of the smart rectification system stops operating due to an unexpected situation or an abnormal situation occurs, the control module 140 performs a system reset and then the previously set interrupter 131a on-off time By restoring the over-output voltage (current), it is possible to solve the problem caused by the interruption of the interrupter 131a during exploration.

At this time, when such a situation occurs, it may include a function of transmitting an SMS to the operator through the interworking of the rectifier 100 and the control system 200, and the operator can efficiently conduct DCVG exploration.

Referring to FIG. 13 , a method of operating the smart rectification system in ACVG exploration mode will be described.

The control module 140 confirms that the DC output unit 133 is turned off.

The control module 140 turns off the DC output unit 133 when the DC output unit 133 is not turned off.

The voltage, current value, and output frequency ratio of the AC output unit 132 are input, and an output value is calculated using the input value, and then the AC output unit 132 is output as the calculated output value.

At this time, the user may input the voltage, current value, and output frequency ratio of the AC output unit 132 by selecting the mode selection information from the local display module 120 and the remote display module 210 described above, but is limited thereto. it's not going to be

The control module 140 operates the AC output unit 132 and checks the DC value of the piping type DC output unit 133 to perform ACVG exploration. When the ACVG exploration is completed, the control module 140 may control the AC output unit 132 to be turned off and the DC output unit 131 to be turned on to perform the piping method DC output mode again.

Also, a method of controlling the output of the current value of the rectifier 100 will be described with reference to FIG. 14 .

The control module 140 may control the current sensor to operate according to the sensed current value.

According to the specified standard, the rectifier 100 has a maximum DC 60V/30A output.

According to the state of the city gas pipe, the rectifier 100 has different output voltages and currents for an effective way. There is also a case where the output current of the rectifier 100 is less than 2A.

Usually, the rectifier 100 is designed to generate a maximum output current of 30A, so it has a limit in monitoring and displaying an accurate value at less than 1A. Technically, the circuit that senses the current sets the error standard based on 30A, which results in poor measurement in current measurement of less than 1A.

The rectifier 100 according to the present invention operates the relay 131b to measure a small current in excess of 0A and less than 5A, and the rectifier 100 operates the relay 131b to measure a large current in more than 5A and less than 30A.

Accordingly, the rectifier 100 according to the present invention can accurately measure the output current even in the case of a small output of less than 2A.

At this time, operating the relay 131b so that the rectifier 100 measures a small current means using a sensor capable of measuring a small current, and operates the relay 131b so that the rectifier 100 measures a large current This means using a sensor capable of measuring a large current, but is not limited thereto.

At this time, the rectifier 100 according to the present invention may determine whether power is applied and first measures a large current, and whether the output current of the rectifier 100 is less than 5A.

In the above, the present specification has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present invention, but these are merely exemplary, and those skilled in the art may make various modifications and equivalent other modifications from the embodiments of the present invention. It will be appreciated that embodiments are possible. Therefore, the protection scope of the present invention should be defined by the claims.

100: rectifier
110: communication module
120: local display module
130: output module
131: DC output
131a: interrupter
131b: relay
132: AC output
133: piping type DC output
140: control module
200: control terminal
210: remote display module

Claims (9)

A smart rectification system for preventing and detecting damage in piping, comprising:
rectifier 100; and
A control terminal 200 located remotely from the rectifier 100 and including a remote display module 210 for transmitting remote input information to the rectifier 100;
The rectifier 100 is
a communication module 110 for receiving the remote input information from the control terminal 200;
a local display module 120 for generating local input information;
an output module 130 including a DC output unit 131 for outputting DC power, an AC output unit 132 for outputting AC power, and a piping type DC output unit 133; and
Receives any one of the remote input information or the local input information, and turns on the DC output unit 131 and the AC output unit 132 according to any one of the remote input information or the local input information. on) or off (off) a control module 140 for controlling either; including,
When selection information is input to the rectifier 100, the local display module 120 generates it as the local input information,
When selection information is input to the control terminal 200, the remote display module 210 generates it as the remote input information,
The selection information includes DCVG selection information and ACVG selection information,
The local display module 120 transmits the local input information to the control module 140 , and the remote display module 210 transmits the remote input information to the control module 140 through the communication module 110 . send to,
When any one of the remote input information or the local input information includes the ACVG selection information, the control module 140 turns off the DC output unit 131 and controls the AC output unit 132 to turn on. do,
When any one of the remote input information or the local input information includes the DCVG selection information, the control module 140 turns off the AC output unit 132 and controls the DC output unit 131 to turn on. doing,
Smart rectification system.
According to claim 1,
The DCVG selection information is
exploration method conversion selection information including ACVG exploration conversion mode;
control selection information including local mode or remote mode;
mode selection information including a manual mode for adjusting the output value of the DC output unit 131 and an automatic mode for adjusting the method potential value;
operation selection information including whether the rectifier 100 operates;
Interrupter operation selection information including the on-off time of the interrupter (131a); and
GPS status display selection information including GPS and SYNC Time according to the location of the rectifier 100; including,
When the control selection information includes a remote mode, the mode selection information, the operation selection information, and the interrupter operation selection information are deactivated in the local display module 120,
When the control selection information includes a local mode, the mode selection information, the operation selection information, and the interrupter operation selection information are deactivated in the remote display module 210, and
When the DCVG selection information is output and the control selection information includes either a remote mode or a local mode, when the operation selection information outputs the stop operation of the rectifier 100, the search switching selection information is activated,
Smart rectification system.
According to claim 1,
The ACVG selection information is
exploration method conversion selection information including DCVG exploration conversion mode;
mode selection information; and
Including; operation selection information for selecting whether to operate the rectifier 100
Smart rectification system.
According to claim 1,
The DC output unit 131 outputs 60V/30A, and the AC output unit 132 is standardized to output 80V/2A,
The rectifier 100 operates the relay 131b to measure a small current when the current output from the DC output unit 131 exceeds 0A and less than 5A,
The rectifier 100 operates the relay 131b to measure a large current when the current output from the DC output unit 131 is 5A or more and 30A or less,
Smart rectification system.
A method of controlling the smart rectification system according to claim 1, comprising:
(a) operating the smart rectification system in a piping type DC output mode;
(b) operating the smart commutation system in DCVG exploration mode; and
(c) operating the smart commutation system in ACVG exploration mode;
The step (a) is,
(a1) applying power to the rectifier 100;
(a2) checking the DC value of the piping type DC output unit 133; and
(a3) confirming that the AC output unit 132 is off, and controlling the DC value of the piping type DC output unit 133; including,
Control method of smart rectification system.
6. The method of claim 5,
Step (b) is,
Simultaneously with step (a3),
(b1) setting an on-off time of the interrupter (131a) of the DC output unit (131);
(b2) setting the on-off time of the relay 131b of the DC output unit 131 to the on-off time of the interrupter 131a set in the step (b1);
(b3) confirming that the AC output unit 132 is turned off; and
(b4) operating the DC output unit 131 and performing DCVG exploration to check the DC value of the piping type DC output unit 133; containing,
Control method of smart rectification system.
7. The method of claim 6,
The step (c) is,
Simultaneously with step (a3),
(c1) confirming that the DC output unit 133 is turned off;
(c2) inputting a voltage, a current value, and an output frequency ratio to the AC output unit 132;
(c3) calculating an output value using the value input in step (c2) and outputting the AC output unit 132 as the calculated output value; and
(c4) operating the AC output unit 132 and performing ACVG exploration to check the DC value of the piping type DC output unit 133; including,
Control method of smart rectification system.
8. The method of claim 7,
If the selection information is DCVG selection information, the step (b) is performed,
If the selection information is ACVG selection information, the step (c) is performed,
Control method of smart rectification system.
7. The method of claim 6,
Step (b) is,
(b5) resetting the smart rectification system when the interrupter 131a stops operating differently from the user control signal;
(b6) resetting the most recent on-off time among the on-off times of the interrupter 131a set in step (b1) to the on-off time of the relay 131b in step (b2); and
(b7) performing the step (b4) again using the most recent output voltage among the output voltages of the DC output unit 131 operated in the step (b4);
Control method of smart rectification system.

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