KR102724402B1 - Network Monitoring System related to a water treatment control system and method thereof - Google Patents

Abstract

The present invention discloses a method for operating a network monitoring system related to water treatment control and a device supporting the same, the method comprising: a step of transmitting a message requesting confirmation of a communication status to a plurality of loads, which are arranged by region and have a communication connection status with each other and are each assigned IP (internet protocol) address information; a step of receiving messages from the plurality of loads; a step of generating a hierarchical IP table corresponding to the communication connection status between the plurality of loads based on the received messages; and a step of providing the communication status of the plurality of loads to a designated device through the hierarchical IP table.

Description

Network monitoring system related to water treatment control and method thereof {Network Monitoring System related to a water treatment control system and method thereof}

The present invention relates to a technology for monitoring water treatment control, and more specifically, to a network monitoring system related to water treatment control and an operating method thereof that supports rapid processing of abnormality occurrence factors in various water treatment-related facilities.

The water treatment control system includes water treatment, sewage treatment, agricultural water, and national river management. In addition, various facilities for water treatment and sewage treatment are designed and installed to perform water treatment and sewage treatment. At this time, various personnel are required for monitoring, control, management, and operation of the facilities for water treatment and sewage treatment. The above-mentioned monitoring, control, management, and operation can be divided into a permanent personnel management area and an unmanned remote management area, and the size of the unmanned remote management area has been gradually increasing recently.

Meanwhile, power is required to drive and control various facilities deployed in the water treatment control system. Up to now, power has been supplied from a substation through a three-phase, four-wire distribution line to drive the facilities of the water treatment control system. However, in the case of the water treatment control system, since the nature of the facility means that if a power outage occurs, it can cause problems directly related to the lives of users, various efforts are required to prevent power outages and control the water treatment control system.

The present invention is intended to solve the above-described conventional problems, and for example, the present invention provides a network monitoring system related to water treatment control and an operating method thereof, which supports intuitive processing of monitoring for various facilities installed in a water treatment control system, and based on this, supports quicker status checks of various facilities and corresponding responses and processing.

The present invention is intended to solve the above-described conventional problems, and for example, the present invention provides a network monitoring system related to water treatment control and an operating method thereof, which supports intuitive processing of monitoring for various facilities installed in a water treatment control system, and based on this, supports quicker status checks of various facilities and corresponding responses and processing.

A network monitoring system related to water treatment control according to an embodiment of the present invention is characterized by including: a plurality of loads, which are arranged by region in relation to water treatment control and have a communication connection state with each other and are each assigned IP (internet protocol) address information; a remote control device which performs communication status monitoring for the plurality of loads; a central control device which generates a hierarchical IP table corresponding to the communication connection state between the plurality of loads based on the communication status monitoring results of the plurality of loads collected by the remote control device; and provides the communication status of the plurality of loads through the hierarchical IP table.

Here, the load is characterized by including at least a PLC (Programmable Logic Controller) and CCTV in relation to the water treatment control.

In addition, the remote control device collects location information on the plurality of loads and provides the collected information to the central control device, and the central control device controls the output of location information on a load showing a communication failure state among the plurality of loads together with map information.

Meanwhile, the remote control device is characterized by controlling the device type of a load having a communication abnormality among the plurality of loads to be checked and to transmit a reset command appropriate for the device type to the load having the communication abnormality.

In addition, the remote control device is characterized in that, if the load is normal, it stores the communication response time of the load, and if the load is abnormal in communication, it stores the duration of the communication abnormality of the load, and if the stored communication response time is periodically delayed for a preset period of time or longer or the duration of the communication abnormality is maintained for a preset period of time or longer and occurs repeatedly, it transmits a notification message to the central control device.

According to an embodiment of the present invention, a method for operating a network monitoring system related to water treatment control is characterized by including the steps of: a remote control device transmitting a message requesting confirmation of a communication status to a plurality of loads, which are arranged by region in relation to water treatment control and have a communication connection status with each other and are each assigned IP (internet protocol) address information; a step receiving messages from the plurality of loads; a step generating a hierarchical IP table corresponding to the communication connection status between the plurality of loads based on the received messages; and a step providing the communication status of the plurality of loads to a designated device through the hierarchical IP table.

The method is characterized by further comprising a step of collecting location information for the plurality of loads and a step of outputting location information of a load indicating a communication abnormality among the plurality of loads together with map information.

In addition, the method is characterized by further including a step of checking the device type of a load having a communication abnormality among the plurality of loads, and a step of controlling the load having the communication abnormality to perform a reset by transmitting a reset command appropriate for the device type to the load.

In addition, the method is characterized by further including a step of storing a communication response time of a load in the case of a normal load, a step of storing a duration of a communication abnormality of the load in the case of a communication abnormality, and a step of transmitting a notification message to the central control device when the stored communication response time is periodically delayed for a preset period of time or longer or when the duration of the communication abnormality is maintained for a preset period of time or longer and occurs repeatedly.

According to the present invention, the present invention supports more intuitive processing of network monitoring based on operation of IP tables in a hierarchical structure corresponding to various facilities included in a water treatment control system.

In addition, the present invention enables an intuitive understanding of an area where a problem has occurred and a quick response to treatment for that area, while providing a more robust system against various communication and power accidents, and preventing data loss related to water treatment control even in the event of an accident, thereby supporting improved reliability through continuous water treatment control.

FIG. 1 is a diagram illustrating at least one example of a network monitoring system related to water treatment control according to an embodiment of the present invention.
FIG. 2 is a drawing showing an example of a configuration of a remote control device according to an embodiment of the present invention.
FIG. 3 is a drawing showing an example of message types transmitted and received between a remote control device and a control system according to an embodiment of the present invention.
FIG. 4 is a diagram showing an example of a load environment to which network monitoring according to an embodiment of the present invention is applied.
FIG. 5 is a diagram showing an example of an IP table having a hierarchical structure corresponding to the load environment of FIG. 4 to which network monitoring according to an embodiment of the present invention is applied.
FIG. 6 is a diagram showing another example of a load environment to which network monitoring according to an embodiment of the present invention is applied.
FIG. 7 is a diagram showing an example of an IP table having a hierarchical structure corresponding to a load environment to which the network monitoring of the present invention of FIG. 6 is applied.
FIG. 8 is a diagram showing another example of an IP table having a hierarchical structure corresponding to a load environment to which the network monitoring of the present invention of FIG. 6 is applied.
FIG. 9 is a diagram showing an example of a water treatment control environment to which a network monitoring system according to an embodiment of the present invention is applied.
FIG. 10 is a drawing showing an example of a remote control device configuration according to an embodiment of the present invention.
FIG. 11 is a drawing showing an example of a power supply situation by a remote control device according to an embodiment of the present invention.
FIG. 12 is a drawing showing an example of an operation method of a network monitoring system according to an embodiment of the present invention.

It should be noted that in the following description, only the parts necessary for understanding the embodiments of the present invention will be described, and the description of other parts will be omitted to the extent that it does not distract from the gist of the present invention.

The terms or words used in this specification and claims described below should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to describe his own invention in the best way. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, and it should be understood that there may be various equivalents and modified examples that can replace them at the time of filing this application.

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

FIG. 1 is a diagram illustrating at least one example of a network monitoring system related to water treatment control according to an embodiment of the present invention.

Referring to FIG. 1, a network monitoring system (10) according to an embodiment of the present invention may include a load (200), a control system (201), a remote control device (100), and a central control device (30). Here, the remote control device (100) may be configured to be placed in an area where the load (200) is placed and control power supply supplied to the load (200). Alternatively, the control system (201) may operate as a remote control device that controls power supply of the load (200), and the remote control device (100) may operate as a control device above the control system (201). Alternatively, the network monitoring system (10) may further include a central control device (30) that communicates with the remote control device (100) above the remote control device (100), and status monitoring of facilities placed in each area may be performed in response to a request from the central control device (30).

The above load (200) may include at least one of various facilities related to water treatment control. For example, the load (200) may include a PLC (Programmable Logic Controller) facility related to water treatment control, a CCTV that photographs at least a portion of an area related to water treatment control, a VPN (virtual private networks) that supports communication connections of a water treatment control system, etc. In addition, the load (200) may further include at least one valve and valve control device related to water treatment control, or a central control panel, an engineering panel, data transmission equipment, a field control panel, a filter operation panel, etc. related to water treatment control. In the following description, the load (200) may include a configuration that has an IP (internet protocol) address value and is operated.

The above control system (201) may include a control device or controller that controls at least one facility included in the above-described load (200). For example, the control system (201) may include a SCADA (supervisory control and data acquisition) system for the PLC control, an NVR (network video recorder) or DVR (digital video recorder) system for the CCTV control, and a network device for the VPN operation.

The above remote control device (100) can communicate with the control system (201) and supply power for the operation of the control system (201) and the load (200) controlled by the control system (201). In particular, the remote control device (100) of the present invention can perform network monitoring for loads (200) having IP address values and check whether a communication abnormality has occurred. The remote control device (100) provides the monitoring results for the communication connection through an IP table having a hierarchical structure, thereby supporting the system manager to immediately check which facility has an abnormality. In this regard, the remote control device (100) can include a configuration as illustrated in FIG. 2.

Meanwhile, the remote control device (100) may be placed in each region where water treatment facilities are placed. Alternatively, the remote control device (100) may include a slate-type remote control device placed in each region where water treatment facilities are placed and a master-type remote control device that comprehensively manages the plurality of slave-type remote control devices. Alternatively, among the plurality of remote control devices placed in each region, one remote control device may act as a master, and the remote control devices installed in the remaining regions may act as slaves.

The central control device (30) may request communication status monitoring for loads (200) from at least one remote control device (100) at regular intervals or as needed, and may support configuration and output of a hierarchical IP table for loads (200) based on the communication status monitoring result provided by at least one remote control device (100). In addition, the central control device (30) may process a reset command for a load (200) in which a communication status abnormality has occurred. Meanwhile, the central control device (30) may also be another remote control device (100) existing above the remote control device (100).

FIG. 2 is a drawing showing an example of a remote control device configuration according to an embodiment of the present invention. Prior to the description, in FIG. 2, a configuration for performing communication status monitoring is described as a remote control device (100), but the present invention is not limited thereto. For example, in the configuration shown in FIG. 2, the configuration described as a remote control device (100) may be the central control device (30) described above in FIG. 1, and the configuration described as a control system (201) may be the remote control device (100) described above in FIG. 1. Accordingly, the hierarchical IP table described below may be generated by the remote control device (100) or the central control device (30).

Referring to FIG. 2, the remote control device (100) of the present invention may include a hierarchical IP table (101), a device type-specific reset table (102), a control system connection unit (103), a communication connection status check unit (104), a result table (105), and a communication failure location determination unit (106). The above-described remote control device (100) includes, for example, a communication circuit (or a communication interface), a storage unit (or a memory, a storage device, a DB (database)), and a processor, and the storage unit may store at least some of the hierarchical IP table (101), the device type-specific reset table (102), and the result table (105). The processor may include at least the control system connection unit (103), the communication connection status check unit (104), and the communication failure location determination unit (106). Here, at least one of the control system connection unit (103) and the communication connection status check unit (104) may be included in the processor or in the communication interface for driving the communication circuit.

The hierarchical IP table (101) above may include a table that hierarchically arranges identifier information corresponding to loads (200) (or water treatment control related facilities) to which IP address values are assigned. In this regard, the remote control device (100) may check the communication connection for the loads (200) and collect identifier information for the loads (200) that are connected to the communication connection to generate at least a part of the hierarchical IP table (101). In addition, the remote control device (100) may transmit the hierarchical IP table for the loads (200) arranged in its region to the upper remote control device. The upper remote control device may integrate the hierarchical IP tables received from the lower remote control devices to create the hierarchical IP table (101) for the entire region and store and manage it in a storage unit. The hierarchical IP table (101) of the present invention may include a hierarchical IP table based on identifiers for loads (200) installed in regions divided into administrative districts such as cities, counties, and districts, for example. Alternatively, the hierarchical IP table (101) of the present invention may include a hierarchical IP table that defines the communication connections of each load (200) based on the relationship between a wireless communication device acting as a master and wireless communication devices having a slave relationship to the wireless communication device acting as the master.

The above device type-specific reset table (102) may include a table storing reset commands that are suitable for the characteristics of each load (200). For example, in the case of a PLC, reset may be performed based on the same reset command, but in the case of a CCTV or VPN, reset commands may differ for each manufacturer of each device. The device type-specific reset table (102) may include device-specific reset commands for all loads (200) included in the hierarchical IP table (101). Alternatively, in response to administrator control, the device type-specific reset table (102) may be updated to include a command for resetting the corresponding device when a new load (200) is connected or a new type of load is connected.

The control system connection unit (103) may include a communication circuit connecting the control system (201) and the remote control device (100). For example, the control system connection unit (103) may include a wireless communication circuit capable of forming a wireless communication channel with the control system (201). Alternatively, the control system connection unit (103) may include a wired communication interface capable of forming a wired communication channel with the control system (201). The control system connection unit (103) may transmit a communication status result and a device reset command to the control system (201) (e.g., a SCADA system), and receive a processing result for the device reset command from the control system (201).

The above communication connection status verification unit (104) can verify the communication connection status of the load (200) by referring to the hierarchical IP table (101). In this regard, the communication connection status verification unit (104) can transmit a message (or Ping) for verifying the communication connection status to each of the loads (200), and can verify the communication connection status of each load (200) by referring to the reception of the corresponding message. The communication connection status verification unit (104) can apply the communication connection status to the hierarchical IP table (101) to generate a result table (105).

The above result table (105) may include a table that applies a communication connection status to the hierarchical IP table (101). For example, the result table (105) may include information that distinguishes between a load in a normal mode in which a communication connection is established and a load in an abnormal mode (or a communication failure state) in which a communication connection is not established in the hierarchical IP table (101).

The above communication failure location determination unit (106) may be configured to determine the location of a load whose communication connection is abnormal. The communication failure location determination unit (106) may collect location information of a load in an abnormal mode. The communication failure location determination unit (106) may output the collected location information together with map information. In this regard, the remote control device may pre-store the map information, and the location information may include latitude and longitude information that may be displayed on the map information. In addition, the remote control device may further include a display device for displaying the location of the load in the communication failure state, or may further include a communication circuit that may transmit the location information and the map information to a manager terminal or a resident terminal including a display.

FIG. 3 is a drawing showing an example of message types transmitted and received between a remote control device and a control system according to an embodiment of the present invention.

Referring to FIG. 3, the message of the present invention may include No, facility name, hierarchical level, device type, model name manufacturer, reset command, IP address, primary Port, spare 1Port, spare 2Port, spare 3Port, and a note area. The remote control device (100) may request the control system (201) to check the status of each load (200), and the control system (201) may check the status of the loads (200) in response to the request for checking the status of the loads (200) of the remote control device (100) and transmit the information accordingly to the remote control device (100). As another example, the message may be transmitted and received between the master remote control device and the slave remote control devices. As described above, the master remote control device may receive the message from a plurality of slave devices, store and manage the received message, and process the output of information on an abnormal state. Alternatively, as another example, there may be one remote control device (100) and multiple control systems configured to handle management, operation and reset control for loads (200) deployed in each area.

Meanwhile, the control system (201) can check the communication status of the loads (200) according to the IP table information of the hierarchical structure and record the return result. Alternatively, the control system (201) can check the communication status of the loads (200) and provide the return result to the remote control device (100). At this time, if a return for the confirmation of normal communication status is received, the control system (201) can determine that the load is in normal mode. In addition, if there is a load that does not respond to the communication confirmation request, the control system (201) can check the communication status of the upper or lower load of the load in the hierarchical IP table, and based on the confirmation result, determine whether there is a problem with the device itself that does not respond to the communication or whether power is not supplied to the load (e.g., whether it is in the power off state), and record the result. The control system (201) can transmit the display of the communication connection result and the execution of the reset command of the load (or device).

In the above-mentioned transmitted and received messages, the NO field indicates the number of the transmitted and received message, and the facility name field may correspond to the name of the facility transmitting and receiving the corresponding message. In the above-mentioned transmitted and received message, the hierarchical level field is an area where a value indicating which layer the corresponding load belongs to in the hierarchical structure IP table is entered, and if the value of the master remote control device (100) (or the control system (201)) is 0, the loads (200) below it may be defined as hierarchical level values such as 1, 2, 3, etc. In the above-mentioned transmitted and received message, the device type field is an area where a value indicating the type of the load is entered, as described above, and VPN, PLC, CCTV, etc. may be entered, and the device type value may be updated by newly installed or removed equipment in each region in relation to water treatment control. In the above-mentioned transmitted and received message, the model name/manufacturer field may be an area where the manufacturer and model name of the device corresponding to the corresponding load (200) are recorded. In the case of CCTV among the loads (200), since the reset command may differ depending on the manufacturer, since it is necessary to distinguish between various manufacturers, the model name and manufacturer value of the load (200) may be entered in the message. The reset command area may be entered with a command value requesting to reset the corresponding load (200) corresponding to the model name and manufacturer. The IP address area may be an area where a unique address value assigned to the corresponding load (200) is entered. The primary port area may be entered with a port value used in SCADA, DVR, and NVR. The spare 1, 2, 3, etc. port areas may be entered with open port values for checking and compatibility of the load (200). The remote control device (100) may process the load to be reset if the primary port is not connected to communication and only the spare port is connected to communication. The above remote control device (100) determines that there is an error in the load (200) if there is no communication connection in either the main port or the standby port, and if the communication connection of the equipment in the same layer is normal, the error status of the load (200) can be confirmed. The above remote control device (100) can determine that there is a power off, communication modem, or communication line problem in the case where all loads (200) arranged in the layer stage are not connected to each other.

As described above, the remote control device (100) supporting the network monitoring system of the present invention can check the stability of the communication line by periodically checking the communication status of the equipment (or load) that is remotely controlled unmanned, and can intuitively know the location of a malfunction in the equipment (or load) in a hierarchical structure, thereby supporting quick maintenance. In addition, the present invention improves the convenience of facility managers and supports reducing the cost of maintenance by enabling the long-term repair expectation to be estimated in the case of a load (or device) that has a high rate of fluctuation in communication response speed or frequent communication errors. In other words, the present invention can support more convenient facility asset management using a hierarchical IP table.

FIG. 4 is a diagram showing an example of a load environment to which network monitoring according to an embodiment of the present invention is applied.

Referring to FIG. 4, the load environment (11) of the present invention may include the Internet/closed network (50) and loads of a first region (or zone) connected to the Internet/closed network (50), for example, a first communication module (401) (e.g., VPN/communication modem), a first load (403) (e.g., PLC (measurement, control)) connected to the first communication module (401), a second load (405) (e.g., CCTV (monitoring)), and a second communication module (407) (e.g., wireless AP communication device). In addition, the load environment (11) may include loads of a second region adjacent to or communicatively connected to the first region, such as a third communication module (411) (e.g., a wireless AP communication device) forming a communication channel with the second communication module (407), a third load (413) (e.g., a PLC) connected to the third communication module (411), a fourth load (415) (e.g., a CCTV), a fourth communication module (417) (e.g., a wireless AP communication device), and may include a fifth communication module (421) (e.g., a wireless AP communication device) forming a communication channel with loads of a third region adjacent to or communicatively connected to the second region, such as the fourth communication module (417), a fifth load (423) (e.g., a PLC) connected to the fifth communication module (421), a sixth load (425) (e.g., a CCTV), a sixth communication module (427) (e.g., a wireless AP communication device). In the above-described structure, each communication module (401, 407, 411, 417, 421, 427) can serve as a link that hierarchically connects loads in adjacent areas.

FIG. 5 is a diagram showing an example of an IP table having a hierarchical structure corresponding to the load environment of FIG. 4 to which network monitoring according to an embodiment of the present invention is applied.

Referring to FIG. 5, the IP table (12) of the hierarchical structure of the present invention may include a first item (501) corresponding to a first communication module (401) disposed in the 0th layer, a second item (503) corresponding to a first load (403) disposed in the first layer, which is a sublayer of the first item (501) disposed in the 0th layer, a second load (405) disposed in the same first layer, a third item (505) disposed in the same first layer, a fourth item (507) corresponding to a second communication module (407), and a fifth item (511) corresponding to a third communication module (411) connected to the second communication module (407) and classified as the first layer.

Meanwhile, the 6th item (513), the 7th item (515), the 8th item (517), and the 9th item (521) are arranged in the 2nd layer, and the 2nd layer can be arranged as sub-items of the 5th item (511) of the 1st layer described above. The 6th item (513) is an item corresponding to the 3rd load (413) described above in Fig. 4, and the 7th item (515) is an item corresponding to the 4th load (415).

The third layer includes the 10th item (523), the 11th item (525), and the 12th item (527), and the third layer can be arranged as sub-items of the 9th item (521) of the second layer described above. The 10th item (523) is an item corresponding to the 5th load (423) described above in FIG. 4, and the 11th item (525) is an item corresponding to the 6th load (425).

As described above, the remote control device (100) of the present invention can reconstruct loads (e.g., communication modules, PLCs, CCTVs, etc.) as shown in FIG. 4 into the form of an IP table (12) with a hierarchical structure as shown in FIG. 5.

FIG. 6 is a diagram showing another example of a load environment to which network monitoring according to an embodiment of the present invention is applied, FIG. 7 is a diagram showing an example of an IP table having a hierarchical structure corresponding to the load environment to which network monitoring of the present invention of FIG. 6 is applied, and FIG. 8 is a diagram showing another example of an IP table having a hierarchical structure corresponding to the load environment to which network monitoring of the present invention of FIG. 6 is applied.

Referring to FIGS. 6 and 7, a hierarchical IP table (14) corresponding to a load environment (13) to which network monitoring is applied may be, for example, a facility (e.g., at least one of a remote control device (100), a control system (201), or a load (200)) deployed in the Jinheung trunk line 17 region (130), and other adjacent regions connected to the facility of the Jinheung trunk line 17 region (130), for example, a facility of the Pungchon trunk line 1 region (133) and a facility of the Tongseok trunk line 4 region (161), may be connected as a first layer of the Jinheung trunk line 17 region (130) facility of the 0th layer. In addition, four regions, for example, a facility of the Pungchon trunk line 2 region (136), a facility of the Pungchon trunk line 3 region (138), a facility of the Pungchon trunk line 4 region (141), and a facility of the Pungchon trunk line 5 region (143), may be connected as a third layer to the facility of the Pungchon trunk line 1 region (133). In the same 3rd tier, the Jinheung trunk line 18 area (146) facility can be connected to the Pungchon trunk line 1 area (133) facility.

As the fourth layer, the Jinheung Trunk Line 19 Region (149) facility and the Tongseok Trunk Line 9 Region (169) facility connected to the Jinheung Trunk Line 18 Region (146) facility can be deployed, and as the fifth layer, the Tongseok Trunk Line 8 Region (152) facility and the Tongseok Trunk Line 10 Region (172) facility connected to the Jinheung Trunk Line 19 Region (149) facility can be deployed.

As the 6th layer, the Tongseok Trunk Line 5 Region (166) facility connected to the Jinheung Trunk Line 19 Region (149) facility through a relay station is deployed, the Tongseok Trunk Line 7 Region (155) facility connected to the Tongseon Trunk Line 8 Region (152) facility of the 5th layer is deployed, and as the 7th layer, the Tongseok Trunk Line 6 Region (158) facility connected to the Tongseok Trunk Line 7 Region (155) facility can be deployed.

Each of the above-described local facility items may be at least one of a remote control device (100), a control system (201), or at least one load (200) deployed in the corresponding area. Alternatively, the local facility items may include at least one facility (e.g., at least one of a remote control device (100), a control system (201), or a load (200)) to which an IP address value is assigned.

Referring to FIGS. 6 and 8, the hierarchical IP table (15) corresponding to the load environment (13) to which network monitoring is applied may be configured by further adding AP items corresponding to wireless communication devices between each regional facility of the hierarchical IP table (14) described above. Here, the AP items are a configuration that actually supports the communication function of the regional facilities, and may be arranged to understand the communication connection relationship of the regional facilities without being recognized as a separate hierarchical structure.

For example, referring to the hierarchical IP table (15), AP 131 and AP 132 can support communication connections between the Jinheung 17 region (130) facility and the Pungchon 1 region (133) facility. AP 159 and AP 160 can be placed between the Jinheung 17 region (130) facility and the Tongseok 4 region (161) facility.

AP 144 and AP 145 can be deployed between the facility in Pungchon 1 region (133) and the facility in Jinheung 18 region (146). AP 134 and AP 135 can be deployed between the facility in Pungchon 1 region (133) and the facility in Pungchon 2 region (136). AP 134 and AP 137 can be deployed between the facility in Pungchon 1 region (133) and the facility in Pungchon 3 region (136). AP 134 and AP 140 can be deployed between the facility in Pungchon 1 region (133) and the facility in Pungchon 4 region (136). AP 134 and AP 142 can be deployed between the facility in Pungchon 1 region (133) and the facility in Pungchon 5 region (136).

AP 147 and AP 148 may be deployed between the above-mentioned Jinheung 18 region (146) facility and Jinheung 19 region (149), and AP 147 and AP 168 may be deployed between the Jinheung 18 region (146) facility and Tongseon 9 region (169) facility. AP 170 and AP 171 may be deployed between the Tongseok 9 region (169) facility and Tongseok 10 region (172). AP 162 and AP 163 may be deployed between Jinheung 19 and the relay station, and AP 164 and AP 165 may be deployed between the relay station and Tongseok 5 region (166) facility. AP 150 and AP 151 may be placed between the Jinheung 19 area (149) facility and the Tongseok 8 area (152) facility, AP 153 and AP 154 may be placed between the Tongseok 8 area (152) facility and the Tongseok 7 area (155) facility, and AP 156 and AP 157 may be placed between the Tongseok 7 area (155) facility and the Tongseok 6 area (158) facility.

Meanwhile, the table representing each regional facility described above may be provided including a designated first image or a first display effect corresponding to a state in which the communication connection status is good or the facility is operating in a normal mode. In addition, the table representing each regional facility described above may be provided including a designated second image or a second display effect corresponding to a state in which the communication connection status is poor or the facility is operating in an abnormal mode. The first image and the second image may differ in at least one of color or shape.

FIG. 9 is a diagram showing an example of a water treatment control environment to which a network monitoring system according to an embodiment of the present invention is applied.

Referring to FIG. 9, a water treatment control environment (16) according to an embodiment of the present invention may include an input power source (20), a first load (300), a second load (200), and a remote control device (100) that performs remote control.

The above input power (20) can supply three-phase, four-wire power. For example, the above input power (20) has phases A, B, and C, and can supply power through R, S, T, and N lines.

The first load (300) may include a load that is connected to at least two of the four lines of the input power source (20) and can utilize power from the input power source (20). For example, the first load (300) may include various power consumption devices such as a hydraulic valve, a pump, and an external device. The first load (300) may use a three-phase 380V power source.

The second load (200) may be connected in parallel with the first load (300) to the input power source (20). The second load (200) may include an electronic device that may perform a designated function by using power supplied by the input power source (20) through a remote control device (100). For example, the second load (200) may include devices such as an operating power source, a CCTV, a heater fan, a flow meter, a water level meter, a PLC power source, and a VPN (security device). The second load (200) may use a single-phase 220V power source.

The above remote control device (100) may be placed between the input power source (20) and the second load (200). The remote control device (100) may support power supply to the second load (200) by excluding a line with a problem among the four lines of the input power source (20) and selecting a line to which power is supplied. That is, the remote control device (100) may support constant operation of a communication device, a control device (PLC), CCTV, etc. corresponding to a large-capacity load device. The remote control device (100) may also be configured to include the control system (200) described above.

FIG. 10 is a drawing showing an example of a remote control device configuration according to an embodiment of the present invention.

Referring to FIG. 10, a remote control device (100) according to an embodiment of the present invention may include a power input unit (110), a surge protection unit (120), a power detection unit (130), a power conversion unit (140), a control unit (150), a power output unit (160), a communication unit (170), a GPS receiving unit (180), and a storage unit (190). The above-described remote control device (100) performs the roles and functions of the remote control device (100) described above in FIG. 1, etc., and additionally improves the stability of power supplied to a load, thereby minimizing equipment downtime even when a partial abnormality occurs in a line.

The above power input unit (110) can receive a three-phase, four-wire power supply and transmit the power status to the power detection unit (130). In this regard, the power input unit (110) can include an input terminal connected to three-phase, four-wire wires.

The above surge protection unit (120) can protect the remote control device (100) from a surge generated from the power input unit (110). For example, the remote control device (100) can be protected by blocking power supply having a voltage higher than a specified level from the input power source (20).

The power detection unit (130) can transmit the power status received from the power input unit (110) to the control unit (150). For example, the power detection unit (130) can transmit information about the lines that are currently alive or the lines that are powered off among the four lines to the control unit (150). The power detection unit (130) can be arranged to detect at least a part of the signal that the power input unit (110) transmits to the power conversion unit (140).

The power conversion unit (140) can convert input power (20) under the control of the control unit (150) and transmit it to the power output unit (160). For example, the power conversion unit (140) can include at least two switches and wires that can be connected to two of the R, S, T, and N lines. The power conversion unit (140) can include an input terminal having four input wires, switches that are selectively connected to two of the four input wires, and two output wires that are respectively connected to the switches.

The control unit (150) can determine which wire to select through the value transmitted by the power detection unit (130). The control unit (150) can generate a control signal according to the determination and transmit the generated control signal to the power conversion unit (140). For example, the control unit (150) can control the connection status of switches to connect a wire that can currently be supplied with power among four input wires and an output wire. Meanwhile, the control unit (150) controls to store the communication response time of the load in case of a normal load, and to store the duration of the communication abnormality of the load in case of a load with a communication abnormality. In addition, the control unit (150) can transmit a notification message to the central control device (30) when the stored communication response time is periodically delayed for more than a preset time or when the duration of the communication abnormality is maintained and repeatedly occurred for more than a preset time so that the person in charge can check the monitored content and improve the area where the problem occurred.

The above power output unit (160) is connected to the output wiring of the power conversion unit (140) and can transmit the power provided by the power output unit (160) to the second load (200). The above power output unit (160) can be connected to the second load (200) described above.

The communication unit (170) may be functionally or physically connected to the control unit (150). The communication unit (170) may transmit notification information about the current input power (20) status, the switch control status of the power conversion unit (140), etc. to a designated manager device in response to the control of the control unit (150). The communication unit (170) may transmit the notification information to the manager device (e.g., a message receiving and output device) through power line communication. Alternatively, the communication unit (170) may be provided in the form of a wireless communication module and may transmit a message including the notification information to the manager device through a wireless communication channel. The notification information may be generated, for example, at a certain period. Alternatively, the notification information may be generated when the power status of the four lines is changed differently from before.

The above GPS receiver (180) collects current location information in response to the control of the control unit (150) and can transmit the collected location information to a designated device (e.g., a superior remote control device or administrator device) via the communication unit (170).

The above storage unit (190) can store real-time facility operation data and transmit the stored real-time data upon request of central control in case of network failure. The information stored in the storage unit (190) can be stored and managed in the storage unit (190) and provided in response to a request of central control, even when normal operation data cannot be transmitted to a higher-level control device due to, for example, an abnormality in the communication line or an unstable communication status.

The remote control device (100) of the present invention having the above-described structure can store real-time operating data when power is normal but communication and network failures occur, thereby reducing the loss of operating data.

FIG. 11 is a drawing showing an example of a power supply situation by a remote control device according to an embodiment of the present invention.

Referring to FIG. 11, the remote control device (100) of the present invention is configured so that power supplied to the facility can be supplied through various lines, thereby supporting complete facility operation even if a line abnormality occurs. First, when R, S, T, and N of the input power (20) are in a normal or abnormal state, in the case of general R-phase control, there are only four normal operating states (a state in which all RSTNs are normal, a state in which S is abnormal and all RTNs are normal, a state in which T is abnormal and all RSNs are normal, and a state in which ST is abnormal and RN is normal).

Meanwhile, when the remote control device (100) of the present invention is applied, 11 normal operation states can be supported except when RST is in an abnormal state, RSN, RTN or STN are in an abnormal state, or RSTN is in an abnormal state. Meanwhile, even in the above-described abnormal state operation, a UPS can be provided to supply power to the control device and configured to maintain the power supply to the control device.

As described above, the network monitoring system of the present invention organizes all equipment with IPs into a hierarchical structure to check a part showing a communication failure state, and performs the reset function of the equipment if it has a reset function, thereby supporting more detailed equipment operation and more convenient equipment management and operation. Here, the communication status monitoring data can be stored in a DB (e.g., a storage unit (190) of a remote control device (100) or a storage unit of an upper control device of the remote control device (100)) to support an operator in making judgments on line improvement and line replacement.

In addition, the present invention can collect and process GPS data received from field equipment (or remote control devices (100) deployed at the field) in a private network (closed network) system using a GPS receiver (180). At this time, the present invention provides the collected data by linking it with a map app of a portable terminal (or smartphone) through data linkage via Bluetooth, thereby supporting intuitive confirmation of which area equipment has a communication problem.

Additionally, the present invention can reduce loss of operational data by linking real-time operational data of a field remote control panel in the event of a network abnormality, thereby inserting data from the time of network abnormality occurrence to the time of recovery into a real-time data DB of an existing SCADA system.

FIG. 12 is a drawing showing an example of an operation method of a network monitoring system according to an embodiment of the present invention.

Referring to FIG. 12, in relation to the method of operating a remote control device related to network monitoring of the present invention, the remote control device (100) can confirm an instruction regarding communication status monitoring at step 1201. In relation to this, the remote control device (100) can receive a message regarding communication status monitoring from a central control device above. Alternatively, the remote control device (100) can perform a schedule regarding communication status monitoring in response to predefined scheduling information at a certain period or in response to the occurrence of a specific event. In relation to the communication status monitoring, the remote control device (100) can confirm whether the connected loads (200) have a normal communication status. In relation to this, the remote control device (100) can transmit a message indicating the communication status to the loads (200) and receive a response thereto. Alternatively, the remote control device (100) can transmit a message requesting confirmation of the communication status and transmit a corresponding request to the control system (201) connected to the loads (200) to collect a response thereto.

In step 1203, if an abnormality occurs in relation to the communication connection status, the remote control device (100) can perform a reset request and a GPS-based notification in step 1205. For example, the remote control device (100) can check the received message, check the type of equipment of the load (200) with a defective communication status, and transmit a message including a reset command capable of resetting the equipment to the load (200) or the control system (201) controlling the load (200). In this regard, the remote control device (100) can pre-save and manage reset commands capable of resetting each load (200). In addition, if there is an abnormality in the communication status, the remote control device (100) can transmit current location information together with identification information of the load (200) with a defective communication status to a higher central control device. Additionally, when the remote control device (100) receives the reset execution result from the control system (201) or the load (200) that commanded the reset, it can transmit the reset execution result to the upper central control device (30).

Next, the remote control device (100) can perform data recovery at step 1207. For example, the remote control device (100) can collect the operation data of the load (200) while the communication status of the load (200) is bad, and process the data recovery stored in the upper central control device (30) that manages the operation data of the load (200) based on the collected operation data. In this regard, the remote control device (100) can include a separate storage unit that can store data related to the operation of the load (200) regardless of the communication connection status with the load (200). Alternatively, the remote control device (100) can store and manage the operation data of the load (200) in the control system (201), receive the operation data while the communication status of the load (200) is bad from the control system (201), and provide the received operation data of the load (200) to the central control device.

When the central control device (or the remote control device (100) above the remote control device (100) of the load (200) placement area) receives information on the communication status from the loads (200) of each area, it creates an IP table of hierarchical structure based on the received information, and displays and outputs the communication status of each load (200) based on the created IP table, or provides it to a designated manager terminal.

Meanwhile, if the separate communication connection status is normal in state 1203, the remote control device (100) can skip the following operations.

Meanwhile, the embodiments disclosed in this specification and drawings are merely specific examples presented to help understanding, and are not intended to limit the scope of the present invention. It is obvious to those skilled in the art to which the present invention pertains that other modified examples based on the technical idea of the present invention can be implemented in addition to the embodiments disclosed herein.

10: Network Monitoring System
11, 13: Load environment
12, 14, 15: Hierarchical IP Tables
20: Input power
100: Remote control device
110: Power input
120: Surge protection unit
130: Power detection unit
140: Power conversion unit
150: Control Unit
160: Power output section
170: Communication Department
200, 300: Load
201: Control System

Claims (10)

Multiple loads, each of which is arranged regionally in relation to water treatment control, has communication connections with each other, and is assigned IP (internet protocol) address information;
A remote control device that performs communication status monitoring for the above-mentioned multiple loads;
A central control device is provided which generates a hierarchical IP table corresponding to the communication connection status between the plurality of loads based on the results of monitoring the communication status of the plurality of loads collected by the remote control device, and provides the communication status of the plurality of loads through the hierarchical IP table;
The above remote control device,
A network monitoring system related to water treatment control, characterized in that when a load is normal, the communication response time of the load is stored, and when the stored communication response time is periodically delayed by a preset time or longer, a notification message is transmitted to the central control device. In the first paragraph,
The above load
A network surveillance system related to water treatment control, characterized in that it includes at least a PLC (Programmable Logic Controller) and CCTV in relation to the above water treatment control. In the first paragraph,
The above remote control device
Collects location information on the above multiple subordinates and provides it to the central control device,
The above central control device
A network monitoring system related to water treatment control, characterized in that it controls to output location information of a load showing a communication abnormality among the above plural loads together with map information. In the first paragraph,
The above remote control device
A network monitoring system related to water treatment control, characterized in that it checks the type of device of a load having a communication abnormality among the above plurality of loads and controls to transmit a reset command appropriate for the device type to the load having the communication abnormality. In the first paragraph,
The above remote control device
A network monitoring system related to water treatment control, characterized in that, in the case of a load with an abnormal communication, the duration of the abnormal communication of the load is stored, and if the duration of the abnormal communication is maintained for a preset time or longer and occurs repeatedly, a notification message is transmitted to the central control device. A step for a remote control device to transmit a message requesting confirmation of a communication status to a plurality of subordinates, each of which is arranged regionally in relation to water treatment control and has a communication connection status with respect to the other and is each assigned an IP (internet protocol) address;
A step of receiving messages from the above plurality of subordinates;
A step in which a central control device generates a hierarchical IP table corresponding to a communication connection status between the plurality of loads based on the received messages;
The central control device comprises a step of providing the communication status of the plurality of loads to a designated device through the hierarchical IP table;
The step of the above remote control device storing the communication response time of the load when the load is normal; and
A method for operating a network monitoring system related to water treatment control, characterized in that the remote control device further comprises a step of transmitting a notification message to the central control device when the stored communication response time is periodically delayed by a preset time or longer. In Article 6,
The above load
A method for operating a network surveillance system related to water treatment control, characterized in that it includes at least a PLC (Programmable Logic Controller) and CCTV in relation to the above water treatment control. In Article 6,
A step of the remote control device collecting location information for the plurality of loads;
A method for operating a network monitoring system related to water treatment control, characterized in that the central control device further includes a step of outputting location information of a load showing a communication abnormality among the plurality of loads together with map information. In Article 6,
A step in which the remote control device checks the type of device of a load having a communication abnormality among the plurality of loads;
A method for operating a network monitoring system related to water treatment control, characterized in that it further includes a step of controlling the remote control device to perform a reset by transmitting a reset command suitable for the type of the device to the load having the communication abnormality state. In Article 6,
A step for storing the duration of the communication failure of the load when the above remote control device is a load with a communication failure; and
A method for operating a network monitoring system related to water treatment control, characterized in that the remote control device further includes a step of transmitting a notification message to the central control device when the communication abnormality persists for a preset period of time or occurs repeatedly.

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