KR101645244B1 - Remote Monitering control system and method based on PLC network - Google Patents

Abstract

The present invention relates to a method and apparatus for grouping power in a facility according to necessity, receiving real-time power status information from a power exchange, and preventing the power of each group according to the received power status, (PLC) network based remote monitoring and control system and method, comprising a power consuming unit comprising a plurality of groups (group 1 to group N), a switching unit, a PLC unit including PLCs connected one to one to a plurality of groups, And a power exchange server connected to the power controller through a wired / wireless communication network. Thus, there is an effect that stability of power supply and demand can be improved.

Description

[0001] The present invention relates to a remote monitoring control system and method based on PLC network,

The present invention relates to a remote monitoring and control system based on a PLC network, and more particularly, to a remote monitoring and control system based on PLC network, in which electric power in a facility is grouped according to necessity, To a PLC network-based remote monitoring and control system and method for enabling stable power supply and demand by blocking the PLC network in advance.

Korea's current electricity supply and demand situation shows that after the industrialization, there has been a cyclical power outage caused by the surge in electric power demand on September 15, 2011, and a large power outage is predicted due to lack of supply capability due to the sudden rise in summer and winter peak power , It is recognized that the current power supply and demand is in an emergency situation.

On December 5, 2011, the government announced the "Energy Usage Restriction Notice" and requested electric users who set a contract power of 1000 kW / h or more to reduce their total usage by 10% from the previous year. For general business customers, And the usage rate is increased so that the electricity user is newly introduced with the charge plan to add the basic charge to the electric user so that the electric cost burden is increased for the electric user.

For this purpose, in the case of large buildings, the heating temperature should be kept below 20 degrees in order to reduce power consumption. However, individuals in buildings are increasingly using electricity, such as using personal electric heating appliances.

In particular, it is a realistic measure by the authorities to enforce only the vigilant on-site crackdown in the absence of devices that measure the power consumption of each floor or office such as the electricity required to manage electricity use. Therefore, the voluntary electricity consumption reduction There is a problem that only exercise can be expected.

Korean Registered Patent No. 10-1227124 (Registered on January 22, 2013, entitled " Real Time Electricity and Electricity Charge Management System for Specific Space of Buildings ") Korean Patent No. 10-0963161 (entitled " Building Smart Energy Management System and Method ", June 04, 2010) Korean Registered Patent No. 10-1029300 (entitled " Energy Integrated Management System " Registered on Apr. 07, 2011) Korean Registered Patent No. 10-1263341 (Registered May 06, 201, entitled " System and Method for Building Load Management Using Intelligent Power Device ")

In order to solve such a problem, the present invention classifies the electric power in a facility according to necessity, receives real-time power state information from the power exchange, and pre-blocks the electric power of each group according to the received electric power state, And to provide a remote monitoring and control system and method based on a PLC network which enables stability.

It is another object of the present invention to provide a remote monitoring control system and method based on a PLC network that allows a manager to reset or change group information and power management information for blocking power supply, if desired.

Further, according to the present invention, when a power reserve ratio is lower than a reference power reserve ratio and a part or all of the power in a facility is shut down, a PLC network-based remote monitoring control system And a method thereof.

The present invention also provides a remote monitoring and control system based on a PLC network, which allows the administrator to approve the electric power in a facility partially or completely and to automatically shut off the power supply if the authorization is not made within a predetermined time, And a method thereof.

It is another object of the present invention to provide a remote monitoring control system and method based on a PLC network that collects and stores information related to a power consumption state of a facility, when a part or all of the power supplied to the facility is intercepted .

The remote monitoring and control system based on the PLC network according to the embodiment of the present invention includes a plurality of loads and a power consuming part including a first local communication part provided in each of the plurality of loads to provide power consumption state information of the load, A switching unit connected between the power line communication cable and the plurality of power consumption units and including a plurality of switching elements for selectively supplying power to the power consumption unit in response to a switching control signal input from the outside, And a first power line communication unit for transmitting the power consumption state information of the load collected by the second short range communication unit on the basis of the power line communication, and a second local communication unit receiving the power consumption state information of the load 1 power line communication unit for receiving the power consumption state information of the load transmitted through the first power line communication unit, And a control unit that extracts power reserve ratios from the power supply state information received through the wired / wireless communication unit, and when the extracted power reserve ratio is equal to or less than a preset reference power reserve ratio, And a power controller for outputting a switching control signal for controlling an operation state of the devices.

As an embodiment related to the present invention, a PLC stores a program for storing and outputting power status information, and includes a storage unit for storing power status information received through the second short-range communication unit, and a storage unit And a controller for storing the power status information received through the second short range communication unit in the storage unit and outputting the power status information stored in the storage unit to the power controller through the first power communication unit.

In an embodiment related to the present invention, a power controller stores group information for power management, and includes a storage unit for storing power management information, a group information setting menu item or a group information The power control unit controls the group information setting menu item or the power management information setting menu item to be provided through the input / output unit, and stores the group information or the power management information input through the input / output unit. And outputs the switching control signal in accordance with the group information or the power management information.

As an embodiment related to the present invention, the power management information may be information in which a power cutoff order in the facility is set corresponding to the power reserve ratio extracted from the power supply / demand status information received from the power exchange server.

In a preferred embodiment of the present invention, when the power control unit blocks a part of the power supplied to the facility by the power reserve ratio received from the power exchange server, the power control notification information is transmitted to the administrator terminal, . ≪ / RTI >

As an embodiment related to the present invention, the power control unit may serve to set the power management information required to be approved when the power management information is generated by the administrator, and to cut off the power supply using the power management information requiring the approval A power-on request signal is output to a predetermined administrator terminal, and when an approval signal is received in response to the power-on request signal, power to the corresponding area in the facility can be shut off.

According to an embodiment of the present invention, the power control unit may cut off the power supplied to the corresponding area in the facility if an approval signal is not received for a preset time in response to the request signal.

In an embodiment related to the present invention, when all or a part of the power supplied to the facility is blocked, the power control unit determines whether the power supply is cut off from the group information, the approval information, the power supply cutoff start time information, Or more can be stored and managed in the storage unit.

In the remote monitoring control method based on the PLC network according to the embodiment of the present invention, the power control unit provides group information and power management menu items to guide and store input of group information and power management information, Receiving the power supply status information from the power exchange server while receiving the power consumption status of the load, extracting the power reserve ratio from the power supply status information, and the power control unit compares the power reserve ratio with the reference power reserve ratio Determining whether the power reserve ratio is equal to or less than a reference power reserve ratio, and if the power reserve ratio is equal to or less than the reference power reserve ratio, determining whether or not the power reserve ratio is less than or equal to the reference power reserve ratio, And outputting a switching control signal for shutting off the switching control signal.

According to the embodiment of the present invention, when the power control unit blocks a part of the power supplied to the facility by the power reserve ratio received from the power exchange server, the power saving notification information is transmitted to the administrator terminal, To < / RTI >

As an embodiment related to the present invention, the power control unit may serve to set the power management information required to be approved when the power management information is generated by the administrator, and to cut off the power supply using the power management information requiring the approval Outputting a request signal to the administrator terminal in advance and disconnecting the power supply to the corresponding area in the facility upon receipt of the approval signal in response to the request signal.

According to an embodiment of the present invention, the power control unit may further include a step of, when an approval signal is not received for a preset time in response to the request signal, blocking power supplied to the corresponding area in the facility.

In an embodiment related to the present invention, when all or a part of the power supplied to the facility is blocked, the power control unit determines whether the power supply is cut off from the group information, the approval information, the power supply cutoff start time information, Or more can be stored and managed in the storage unit.

The present invention relates to a method and apparatus for grouping power in a facility according to necessity, receiving real-time power status information from a power exchange, and preventing the power of each group according to the received power status, It is effective.

In addition, the present invention enables group information and power management information for blocking power supply to be reset or changed if desired by the administrator so that group information and power management information already set according to the power need situation in the facility can be changed .

Further, in the present invention, when the power reserve ratio falls below the reference power reserve ratio, the power saving notification information is provided to the administrator terminal by a push service or an SMS service by a predetermined administrator terminal when the power in the facility is partially or completely blocked. It is possible to cope with emergency situations that may occur.

In addition, the present invention permits the administrator to approve the power supply to a part or all of the power supply in the facility, and automatically cut off the power supply when the power supply is not established within a predetermined time, There is an effect that the loss due to the magnetic field is not generated.

In addition, the present invention has an effect of collecting and storing information related to power consumption in a facility, when a part or all of the power supplied to the facility is blocked, and to use the collected information as power monitoring data in the facility in the future.

1 is a block diagram of a remote monitoring and control system based on a PLC network according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining the configuration of the power controller of FIG. 1 in more detail.
3 is a flowchart illustrating a remote monitoring and control method based on a PLC network according to the present invention.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed to mean, or be interpreted in an excessively reduced sense. In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms can be understood by those skilled in the art. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Furthermore, the singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as "comprising" or "comprising" and the like should not be construed as encompassing various elements or stages of the invention, Or may further include additional components or steps.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

1 is a block diagram of a remote monitoring and control system based on a PLC network according to an embodiment of the present invention. FIG. 2 is a diagram for explaining the configuration of the power controller of FIG. 1 in more detail.

As shown in FIGS. 1 and 2, a remote monitoring and control system based on a PLC network includes a power consuming unit 100 composed of a plurality of groups (group 1 to group N), a switching unit 200, And a power exchange server 500 connected to the power controller 400 and the power controller 400 through a wired / wireless communication network.

The power consumption unit 100 includes a plurality of loads 110 and a first short range communication unit 120 provided in each of the plurality of loads 110 to provide power consumption state information of the load. Here, the first short range communication unit 120 may be implemented by various communication modules such as a Zigbee communication module and a Bluetooth communication module. Also, the power consumption unit 100 is managed by grouping as shown in FIG. For example, the first group consists of emergency lights, escape guidance lamps, etc., and the second group consists of interior wall power (eg, computers, printers, copiers, etc.) The group 4 can be composed of a cold / warm air conditioner (air conditioner, heater, etc.) in the facility, a group 5 can be composed of an outer wall lamp of the facility, a hall hall lamp, etc. and this group can be set by a manager of the facility or a power manager in the facility .

The switching unit 200 is connected between the power line communication cable and the power dissipation unit 100. The switching unit 200 selectively supplies power to the power dissipation unit 100 in response to a switching control signal input from the power controller 400, The switching element 210 of FIG. That is, the switching elements 210 are provided for each group, and power is supplied or cut off to the loads 110 included in the corresponding group according to the turn-on or turn-off of the switching element 210.

The PLC 300 includes a second short range communication unit 310 receiving the power consumption status information of the load provided from the first short range communication unit 120 and a second short range communication unit 310 receiving the power consumption status information of the load collected by the second short range communication unit 310 A first power line communication unit 320 for transmitting the power status information based on the power line communication and a program for storing and outputting the power status information and storing the power status information received through the second short- The power state information received through the second short range communication unit 310 according to the program stored in the storage unit 330 is stored in the storage unit 330 and the power state information stored in the storage unit 330 is stored in the storage unit 330. [ And a controller 340 for outputting information to the power controller 400 via the first power communication unit 320. [

The second short-range communication unit 310 may be implemented by various communication modules such as a Zigbee communication module and a Bluetooth communication module in the same manner as the first short-range communication unit 120, and may be configured to perform communication with the first short- It is preferable that the communication module is implemented by the same communication module as the communication module constituting the first short-

The power controller 400 includes a second power line communication unit 410 receiving the power consumption status information of the load transmitted through the first power line communication unit 320 of the PLC 300, And a power supply state information received via the wired / wireless communication unit 420. When the extracted power reserve ratio is equal to or less than a predetermined reference power reserve ratio, the operation state of the switching elements A storage unit 440 in which group information for power management is stored and power management information is stored, a group information setting menu item or a power management unit And an input / output unit 450 for receiving group information or power management information according to the information setting menu item provision.

At this time, the power control unit 430 controls the group information setting menu item or the power management information setting menu item to be provided through the input / output unit 450, and stores the group information or the power management information input through the input / And outputs the switching control signal in accordance with the group information or the power management information. Here, the power management information setting menu item provided by the power control unit 430 may set the groups whose power is blocked when the power is to be cut off for the group set according to the group information setting menu item, according to the order.

Here, the power control unit 430 divides the power reserve ratio determination criteria into multiple stages, and can differentially control the power supply within the facility according to the determination criteria. For example, if the power reserve ratio is less than 5%, the power control unit 430 determines that the power is in a power outage state and cuts off power supplied to all the groups. If the power reserve ratio is 5% So that the power supply is selectively cut off according to the power cutoff priority for the predetermined group.

Also, the power control unit 430 can set the maximum amount of power consumption for each group when setting the group according to the group setting menu item so that the first and second short range communication units 120 and 310, the first power line communication unit 320, The second power line communication unit 41 receives the consumed power of the loads of the respective groups and determines whether or not the amount of power consumed by each group exceeds the predetermined maximum amount of power consumption. The power supplied to the group may be blocked.

The input / output unit 450 of the power controller 400 is a touch panel, and the power control unit 430 displays a power consumption confirmation image for confirming the power consumption amount of each group as shown in FIG. 4 on the screen of the input / So that the power manager in the facility can easily visually confirm it. The power control unit 430 stores the reference value for each consumption class in order to provide a power consumption confirmation image for each group in which the power consumption amount for each group is displayed. The power control unit 430 provides the amount of power consumption for each group in real time And receives the power consumption of the input / output unit 450 through the image.

The power management information includes information for setting a power cutoff order in the facility corresponding to the power reserve ratio extracted from the power supply state information received from the power exchange server.

When the power control unit 430 needs to block some of the power supplied to the facility by the power reserve ratio received from the power exchange server 500, the power control unit 430 provides the power saving notification information to the administrator terminal do.

The power control unit 430 serves to set the power management information required to be approved when the power management information is generated by the administrator, The power control unit 430 outputs a request signal to the terminal in response to the request signal. In response to the request signal, the power control unit 430 cuts off the power supplied to the corresponding area in the facility, If no signal is received, power to the corresponding area in the facility is cut off.

The power control unit 430 may store at least one of the group information, the approval information, the power supply cutoff start time information, and the power supply cutoff end time information, which are disconnected from the power supply, 450).

A remote monitoring and control method based on a PLC network constructed as described above will be described.

3 is a flowchart illustrating a remote monitoring and control method based on a PLC network according to the present invention.

As shown in FIG. 3, in the remote monitoring control method based on the PLC network according to the embodiment of the present invention, the power control unit 430 provides group information and power management menu items to guide input of group information and power management information (S110).

The power control unit 430 receives the power consumption status of the load through the PLC 300 and receives the power supply status information from the power exchange server 500 in step S120 and extracts the power reserve ratio from the power supply status information S130).

The power controller 430 compares the power reserve factor with the reference power reserve factor to determine whether the power reserve factor is equal to or less than the reference power reserve factor S140. If the power reserve factor is less than the reference power reserve factor, And outputs a switching control signal to the switching unit 200 to cut off the power supplied to the group according to the power management information with respect to the current power consuming load (S150).

Here, the reference power reserve ratio is divided into the power emergency state and the power surrounding state so as to be discriminated and stored in the storage unit 440, and the power control unit 430 may compare the power reserve ratio with the reference power reserve ratio, Or more, and determines whether to selectively block or block the power supply in the facility according to the comparison result.

The power control unit 430 is set in advance before all or some of the power supplied to the facility is shut off when all or a part of the power supplied to the facility is to be blocked by the power reserve ratio received from the power exchange server 500 The power saving notification information is provided to the administrator terminal as a push service or an SMS service method so that the administrator can know first. This will ensure that the entire facility will be guided so that it can be completed if necessary to complete the work before power saving.

The power control unit 430 serves to set the power management information required to be approved when the power management information is generated by the administrator, And outputs the request signal to the administrator terminal. If an approval signal is received in response to the request signal, the power supply to the corresponding area in the facility is cut off.

The power control unit 430 turns off power supplied to the corresponding area in the facility if an approval signal is not received for a preset time in response to the request signal.

The power control unit 430 stores the group information, the approval information, the power supply cutoff start time information, the power cutoff end time information, and the like, which are disconnected from the power supply when all or a part of the power supplied to the facility is cut off, To allow the facility manager to design and utilize it as data for designing the power usage, so that a more efficient power saving plan can be established.

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

100: Power consumption unit
110: load 120: first short-
200: switching part 210: switching device
300: PLC
310: second short range communication unit 320: first power line communication unit
330: storage unit 340:
400: power controller
410: second power line control unit 420: wired / wireless communication unit 420,
430: Power control unit 440:
450: input / output unit
500: Power Exchange server

Claims (13)

A power consuming unit including a plurality of loads and a first local communication unit provided in each of the plurality of loads to provide power consumption state information of the load;
A switching unit connected between the power line communication cable and the power consumption unit and including a plurality of switching devices for selectively supplying power to the plurality of power consumption units in response to a switching control signal input from the outside;
A second short-range communication unit that receives power consumption state information of a load provided from the first short-range communication unit, a second short-range communication unit that receives power consumption state information of a load provided from the first short- A PLC comprising a communication unit; And
A second power line communication unit receiving power consumption state information of a load transmitted through the first power line communication unit of the PLC, a wired / wireless communication unit receiving power supply / demand status information provided from the power exchange server, And a power controller configured to extract a power reserve ratio from the power supply state information and output a switching control signal for controlling an operation state of the switching elements when the extracted power reserve ratio is equal to or less than a preset reference power reserve ratio,
The power controller
A storage unit for storing group information and power management information for power management;
And an input / output unit for receiving group information or power management information according to a group information setting menu item or a power management information setting menu item provision,
The power control unit controls the group information setting menu item or the power management information setting menu item to be provided through the input / output unit, stores the group information or power management information input through the input / output unit in the storage unit, Or outputs the switching control signal in accordance with the power management information,
The power management information is generated by the manager so that the power management information required to be approved can be set,
Output request signal to a predetermined administrator terminal when the power supply is to be interrupted by using the power management information requiring the line approval,
When an approval signal is received in response to the request signal, the power supply to the corresponding area in the facility is cut off,
If the approval signal is not received for a preset time in response to the request signal, the power supply to the corresponding area in the facility is cut off,
The power control unit
Wherein the power saving notification information is provided to the administrator terminal by a push service or an SMS service method when a part of the power supplied to the facility is to be blocked by the power reserve ratio received from the power exchange server. Remote monitoring and control system.
2. The method of claim 1,
A storage unit for storing a program for storing and outputting power state information and for storing power state information received through the second local communication unit;
A controller for storing the power status information received through the second short range communication unit in the storage unit according to the program stored in the storage unit and outputting the power status information stored in the storage unit to the power controller through the first power communication unit Wherein the remote monitoring and control system further comprises a remote monitoring and control system based on a PLC network.
delete The method of claim 1, wherein the power management information
And a power cutoff sequence in the facility is set corresponding to the power reserve ratio extracted from the power supply status information received from the power exchange server.
delete delete delete The apparatus of claim 1, wherein the power control unit
The power supply interruption start time information, and the power supply interruption end time information in the case where all or part of the power supplied to the facility is blocked, Remote monitoring system based on PLC network.
The power control unit provides group information and power management menu items to guide and store input of group information and power management information;
Receiving power supply status information from a power exchange server while receiving a power consumption status of a load through a PLC;
The power control unit extracting a power reserve ratio from the power supply state information;
Wherein the power control unit compares the power reserve ratio with a reference power reserve ratio to determine whether the power reserve ratio is less than or equal to a reference power reserve ratio;
Outputting a switching control signal for shutting off the power supplied to the group according to the power management information with respect to the current power consuming load when the power reserve ratio is equal to or less than the reference power reserve ratio as a result of the determination;
Providing power saving notification information to a predetermined administrator terminal in a push service or an SMS service mode when the power control section blocks a part of power supplied to the facility by a power reserve ratio received from the power exchange server;
Wherein the power control unit serves to set power management information required to be approved when the power management information is generated by the manager, and when it is desired to block the power supply using the power management information requiring the approval of the power management, Outputting a request signal, and disconnecting power supplied to the corresponding area in the facility when an approval signal is received in response to the request signal; And
And if the power control unit does not receive an approval signal for a preset time in response to the request signal, blocking the power supplied to the corresponding area in the facility.
delete delete delete 10. The method of claim 9,
When the power control unit blocks all or a part of the power supplied to the facility, at least one of the group information, the approval information, the power supply cutoff start time information, and the power supply cutoff end time information with the power cutoff is stored in the storage unit A remote monitoring and control method based on a PLC network.

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