KR101152530B1 - Smart gateway device for intelligent electric energy network system - Google Patents

Abstract

PURPOSE: A smart gateway device for an intelligent power network system is provided to effectively establish the intelligent power network system by combining information collected from a plurality of smart gateways in a single monitoring server which forms a macro network. CONSTITUTION: An external communication unit(214) transmits power consumption information of a smart gateway to an external monitoring server. A control command signal is received from the external monitoring server. A display unit(212) displays the power consumption information of the smart gateway and receives a control command from a user. A central processing unit(215) receives a load power related information signal from a load control device(120) in order to determine the load control device included in a micro network of the smart gateway. The central processing unit saves load power information and creates power consumption data of the smart gateway when the load control device is included in the micro network.

Description

Smart Gateway device for intelligent electric power grid system {Smart Gateway device for intelligent electric energy network system}

The present invention relates to a smart gateway device used in an intelligent power grid system, and more particularly, to a smart gateway device used in an intelligent power grid system for controlling the power of a load connected to each load control device by wire or wireless communication means.

The intelligent grid system is an energy system that improves efficiency by integrating information and communication technology into the production, transportation, and consumption of electricity by interacting with suppliers and consumers.

In today's power systems, it is designed to produce about 10% more electricity than it actually uses. This is an amount that is set in accordance with the maximum consumption of electricity, and reserves the electricity in advance in case it is used more. In addition to fuel, various power generation facilities are additionally needed. In addition, there is a lot of electricity that is thrown away, the energy efficiency is reduced, and carbon dioxide emissions are increased in the process of burning coal, oil, and gas.

On the other hand, if you can produce electricity as much as you need or use it according to the output, you can use electricity more efficiently and prevent global warming. Therefore, the intelligent power grid system can maximize energy efficiency by integrating information and communication technology into the power grid and knowing the amount of electricity used, the supply amount, and the state of the power line.

The core of the intelligent power grid system is to combine information communication technologies such as zigbee and powerline communication with the power grid to exchange information in real time with consumers and utilities. Therefore, it is also possible for a consumer to use electricity when the electricity bill is low, and to allow the electronics to automatically operate during a low electricity rate.

As a power producer, it monitors the current state of electricity use in real time, allowing the power supply to be flexibly adjusted. It is possible to reduce the amount of electricity that does not maintain the maximum amount of electricity during the period of low power consumption or to use surplus power for pumping power generation, and it is also possible to operate flexibly to store electricity and supply it during the period of high power usage. In addition, it is possible to prevent failure of the power grid due to overload.

After all, the intelligent grid system is a new concept system that efficiently manages everything that flows through electricity, not only home appliances such as TVs and refrigerators, but also industrial equipment that runs in factories. In other words, you can check in real time the electricity bill used anywhere in the house, office, factory, it is also possible to use electricity to avoid the daytime expensive time.

On the other hand, in the future, by intelligentizing the power grid, it will be able to move away from the vertical system in which electricity is unilaterally supplied from the center, and prepare a platform for the emergence of energy prosumers by establishing a bi-directional horizontal supply system such as microgrid and distributed power system. It is expected.

Intelligent grid systems are not just about intelligent grids, but they can also be linked to other industries. Areas associated with intelligent grid systems include the power industry, information and communication industry, power storage devices, microgrid electric vehicle industry, and construction industry.

The ultimate goal of intelligent grid systems is energy saving. It produces as much electricity as it needs, and the remaining electricity can be stored through the capacitors and resupplied when needed to reduce the waste. In addition, it is possible to increase the efficiency of power generation facilities by distributing power demand, and increase the power distribution and distribution efficiency through a distributed power supply method. The reduction of greenhouse gas emissions can be achieved by accelerating these energy savings and the introduction of renewable energy.

In addition, it is possible to flexibly cope with electric power monitoring in real time by distributing power demand so that it does not rush in a certain time period, and setting an electric power to be transmitted through a transmission and distribution line to replace the power supply when an accident occurs. Through this, high quality electricity can be stably supplied.

However, although many goals and concepts of such an intelligent grid system have already been proposed, a more detailed study is needed for practically effective power control methods. In addition, by forming a network using a wired or wireless communication means, there is an urgent need for a more effective intelligent power grid system and each component device capable of implementing the same.

An object of the present invention is to wirelessly transmit the information of the load connected to itself in the plurality of load control devices included in the micro network to the smart gateway, and collect and manage the information collected from each smart gateway in a central monitoring server. To provide smart gateway devices for intelligent grid systems that enable effective and integrated power control over loads.

In addition, an object of the present invention is to set a unique ID to the smart gateway and the load control device to form a network for this by using an intelligent power grid system, and transmit the set ID when transmitting the measurement data or control command for the network The present invention provides a smart gateway device for an intelligent power grid system capable of effective integrated management and power control.

In addition, an object of the present invention is to use the intelligent power grid system for this purpose by registering and managing each load control device in the micro network formed by each smart gateway for the intelligent power grid system that can prevent collision and malfunction with the adjacent micro network It is to provide a smart gateway device used for.

In order to achieve the above object, the smart gateway device used in the intelligent power grid system according to the present invention performs wireless communication with at least one load control device 120, the power-related information data signal of the load transmitted from the load control device A wireless communication unit for receiving a signal and transmitting a control command signal to the load control device; A memory unit 211 storing power related information data of a load received from the load control device; An external communication unit 214 for transmitting power consumption information data of the smart gateway to the external monitoring server 100 and receiving a control command signal from the external monitoring server 100; A display unit displaying power consumption information of the smart gateway and receiving a control command by a user's touch input; And determining a load control device included in the micro network of the smart gateway by receiving a load power information data signal received from each load control device 120, and in the case of the load control device included in the micro network, Save the information data and generate the power consumption information data of the smart gateway based on the information, display the power consumption information of the smart gateway on the display unit and transmit to the external monitoring server, the touch input of the external monitoring server and the user A central processing unit controlling the wireless communication unit, the external communication unit, the memory unit, and the display unit to transmit a control command signal to each load control device; And a control unit.

Here, preferably, the power-related information data of the load received through the wireless communication unit 216 may include unique information of the smart gateway device to which the load control device belongs, unique information of the load control device, and current consumption of the load. Contains data of power and current status information.

In addition, the power consumption information data of the smart gateway transmitted to the external monitoring server 100 through the external communication unit 214, the accumulation of the smart gateway calculated based on the unique information of the smart gateway device and load-related information data of the load. Power consumption or the current total power consumption of the smart gateway.

Alternatively, the power consumption information data of the gateway transmitted to the external monitoring server 100 through the external communication unit 214 may include the current power consumption of the load included in the unique information of the load control device and the received load power related information data; Contains data of current status information.

The control command signal received from the monitoring server 100 includes unique information of the smart gateway device to which the load control device to be controlled belongs, unique information of the load control device, and control command information.

The control command signal transmitted from the smart gateway to the load control device may include unique information of the smart gateway device, unique information of the load control device, and control command information.

Here, the control command transmitted to each load control device is an on or off control command in which the load control device receiving the control command controls the power connection of a load connected to the load control device according to the received control command.

Preferably, the memory unit includes a unique number of the load control device included in the micro network of the smart gateway device, and receives the unique number of the load control device from the load control device and compares them to the micro network. It is configured to determine whether it is a load control device included therein.

According to the present invention, by using an intelligent power grid system including a load control device, a smart gateway device and a monitoring server, a load control device connected to each load such as a TV, a PC, an electronic product, and the like collects load related power information. And wirelessly transmit the collected information to the smart gateway device forming the micro network together, and the information collected from the plurality of smart gateways is collected and managed by one monitoring server forming the macro network. There is an advantage to being possible.

In addition, according to the present invention, a unique number, that is, an ID, is set for each of the smart gateway device and the load control device, and the measurement data measured by the load control device is transmitted to the smart gateway, or each load control device is executed by the smart gateway device. When transmitting a control command to the network, by transmitting the set ID together, there is an advantage that effective management and integrated power control of the network of the intelligent power grid system is enabled.

In addition, according to the present invention by registering and managing each load control device in the micro network formed by each smart gateway device for the intelligent power grid system it is possible to prevent collisions and malfunctions with the adjacent micro network due to signal interference, etc. There is an advantage.

1 illustrates an intelligent power grid system in which the present invention is used.
2 is a block diagram showing a detailed configuration of a smart gateway device and a load control device according to an embodiment of the present invention.
3A illustrates an example of power consumption information of a smart gateway displayed on a smart gateway device according to an embodiment of the present invention.
FIG. 3B is a diagram illustrating information of power consumption information of a smart gateway transmitted from each smart gateway and collected and displayed at a monitoring server according to an exemplary embodiment of the present invention.
4 is a diagram illustrating a detailed configuration of data transmitted between respective subjects according to an embodiment of the present invention.
5 is a basic configuration flow chart of the integrated power control method of the intelligent power grid system according to the present invention.
6 is a signal flow diagram illustrating a procedure for controlling each load control device in a monitoring server according to an embodiment of the present invention.
7 is a signal flow diagram illustrating a procedure for controlling each load control device in a smart gateway device according to an embodiment of the present invention.
8 is a signal flow diagram illustrating a network configuration procedure for avoiding interference with an adjacent micro network according to an embodiment of the present invention.
9 and 10 are diagrams showing the results of analyzing and providing the information collected by the monitoring server according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

First, the intelligent power grid system in which the present invention is used will be described in detail.

1 is a diagram illustrating an intelligent power grid system to which the present invention is applied. Referring to FIG. 1, the micro network includes a smart gateway device 110 and a plurality of load control devices 120. The smart gateway device 110 of the present invention is loaded with unique information in advance by a user. It is constructed in such a way that only the control device 120 is included to form the corresponding load control device 120 in its own micro network, and only the participating load control device 120 transmits data within the formed micro network. Can be received. 8 illustrates an example in which only the load control device 120 having a MAC address inputted as unique information participates in a corresponding micro network. In the macro network, the monitoring server 100 and the plurality of smart gateway devices 110 managed by the monitoring server 100 form a macro network.

Each load 130 (eg, a TV, a PC, a refrigerator, a home appliance, etc.) is connected to a load controller (LC) 120 of an intelligent power grid system in which the present invention is used, and the load control device is connected. The current power consumption of the load is measured to obtain a current power consumption value, and the state of each load is determined therefrom, thereby generating power-related information data of the load for the connected load 130. The power-related information data of the load may include unique information of the smart gateway device to which the load control device belongs, unique information of the load control device, current power consumption of the connected load, and determined current state information. Each load control device 120 transmits power related information data of the load to a smart gateway 110 using a wireless communication means. In this case, the load control device 120 according to the embodiment may be mounted and connected to a multi-tab 121 or an outlet 122, or may be built-in in each load 130 or a power supply device. have.

Meanwhile, the smart gateway device 110 which collects information from each of the plurality of load control devices 120 receives the load power related information data signal from each of the plurality of load control devices 120 and includes it in the micro network of the smart gateway. The load control device is included in the micro network. The load control device stores load power information data and generates power consumption information data of the smart gateway based on the load control information and transmits the data to the external monitoring server 100. . Here, the power consumption information data of the smart gateway transmitted to the external monitoring server 100 is the cumulative power consumption of the smart gateway or the current total of the smart gateway calculated based on the unique information of the smart gateway and power related information data of the load. It may include power consumption, or may include all of the unique information of the load control device and the current power consumption and current state information of the load included in the received load power related information data. In this way, that is, the monitoring server 100 may load information related to the load power collected from the plurality of load control devices 120 included in the corresponding network through each smart gateway device 110 and / or based on the smart gateway device. The power information of the generated smart gateway can be collected.

In addition, the smart gateway device 110 may control the power of the load by transmitting a control command signal to each load control device 120 included in the micro network. In addition, the monitoring server 100 may also control the power of the load by transmitting a control command signal to the load control device 120 through each smart gateway device 110.

Hereinafter, an embodiment of the smart gateway device of the present invention will be described in detail centering on the functions of the load control device and the external monitoring server.

First, the load control device 120 calculates a power consumption value of each load (home appliance). Then, the load control device 120 wirelessly transmits, in real time or periodically, the power related information data of the load including power consumption values and state (ON, OFF, standby power) information of each load to the smart gateway device 110. send. In this case, the wireless transmission means may use any wireless transmission means, including Zigbee, WLAN, WiFi, Wibro.

In addition, the smart gateway device 110 manages the collected data by storing the power-related information data of the load obtained from the load control device 120 in a database. In addition, the smart gateway device 110 can control the power wirelessly by turning on / off the power of each load 120 by a user's operation. This may be performed by a method of receiving a control command by a user's touch input and transmitting it to the load control device 120 when the display unit is configured as a touch screen.

Meanwhile, according to the embodiment, each load control device 120 and the smart gateway device 110 are given unique information, that is, an ID, and also transmit an ID given when transmitting data or a control command.

In addition, according to an embodiment, the smart gateway device 110 collects power related information data data of loads of each load control device 120 and generates and transmits power information of the smart gateway generated based on the central monitoring. Send to server 100. The central monitoring server 100 collects and manages data transmitted from each smart gateway device 110. In addition, the power of the specific load control device 120 existing in the network that the specific smart gateway device 110 is in charge of may be controlled from the monitoring server 100. On the other hand, if a state change (on, off, standby state) of each load control device 120 occurs, it is included in the power-related information data of the load and transmitted to the smart gateway device 110.

Hereinafter, the functions of the load control device 120 and the smart gateway device 110 will be described in more detail.

First, the function of each load control device 120 will be described. The load control device 120 checks a power consumption state of a load (ie, home appliance) connected to the load control device 120. That is, it provides a real-time meter reading function of power consumption.

The load control device 120 having the power consumption value determines the current state of a load such as a home appliance by dividing the current state of each load 130 into three states according to the current power consumption in the following manner.

 First, in the 'ON' state, as a state in which the home appliance is connected and operated (eg, refrigerator operation, TV on state, air conditioner running state, etc.), the power consumption value of the home appliance is calculated. Second, the 'standby state' is a state in which home appliances are connected but not operated. However, since the standby power consumption generally occurs even when the home appliance is turned off, the load control device 120 obtains this standby power consumption value. Third, the 'OFF' state is the same as unplugging home appliances, and the current power consumption is zero.

The load control device 120 transmits the power related information data of the load including the current power consumption value and the current state information to the smart gateway device 110 at a set period in real time. At this time, the power-related information data of the transmitting load is generated to include its ID, state (ON / OFF / standby) information and the measured power consumption value.

In addition to the transmission of power-related information data of the load periodically, the load control device 120 provides a state change notification function by transmitting a specific event when it occurs. That is, when it is changed to the standby state from the 'ON' state it will immediately notify the smart gateway device 110. For example, when the TV is turned off, the state is changed and thus is transmitted to the smart gateway device 110.

On the other hand, the load control device 120 changes its state by receiving a command from the smart gateway device 110, and controls the power of each load (130). That is, when the "OFF" command is received from the smart gateway device 110 in the standby state, the state is changed to "OFF" and informs the smart gateway device 110 of this.

Next, referring to the function of the smart gateway device 110, the smart gateway device 110 receives the power-related information data of the load of each load control device 120 in the micro network of the smart gateway device 110. The load control device is included in the micro network. The load control device included in the micro network stores load power information data and generates power consumption information data of the smart gateway based on the load power information data. Performs the function of displaying in form. That is, the smart gateway device 110 uses the load power information data received from each load control device 120 to provide current power consumption, cumulative power consumption for a certain period of time, future electricity bills to be paid by power consumption, and current power consumption of each home appliance. Information such as status is displayed.

 In addition, the load control device 120 has a function of remotely controlling the load control device 120 by transmitting a control command signal for causing a state change (ON, OFF, standby) to each load control device 120. In addition, each smart gateway device 110 generates power consumption information data of the smart gateway of the load control device 120 to transmit to the monitoring server 100 in the center, and transmits a control command signal of the central monitoring server 100 It has a function of receiving and controlling each load control device 120.

At this time, the network controlled by one smart gateway device 110 is configured so that no interference occurs with the adjacent smart gateway device 110 network. Therefore, the control command issued by the smart gateway device 110 to the load control device 120 in its network does not affect the load control device 120 in the network of the smart gateway device 110. In addition, the load control device 120 transmits the load power information data only to the smart gateway device 110 to which it belongs, and does not transmit the load power information data to the adjacent smart gateway device 110. An implementation method related to the interference avoidance method between such micro networks will be described later.

Hereinafter, referring to FIG. 2, a detailed configuration of the smart gateway device 110 according to an embodiment of the present invention will be described together with the detailed configuration of the load control device 120.

First, the smart gateway device 110 according to an embodiment of the present invention performs wireless communication with at least one load control device 120 to receive a power related information data signal of a load transmitted from the load control device, A wireless communication unit 216 for transmitting a control command signal to the load control device; A memory unit 211 for storing power-related information data of a load received from the load control device 120; An external communication unit 214 for transmitting power consumption information data of the smart gateway to the external monitoring server 100 and receiving a control command signal from the external monitoring server 100; A display unit 212 displaying power consumption information of the smart gateway and receiving a control command by a user's touch input; And a central processing unit 215 for controlling the wireless communication unit, the external communication unit, the memory unit, and the display unit. It is configured to include.

Referring to FIG. 2, each functional block of the smart gateway device 110 will be described in detail.

The central processing unit 215 receives a load power information data signal received from each load control device 120 to determine whether the load control device is included in the micro network of the smart gateway, and the load control included in the micro network. In the case of a device, the load power information data is stored, and the power consumption information data of the smart gateway is generated based on this, and the power consumption information of the gateway is displayed on the display unit and transmitted to the external monitoring server 100, and the external monitoring is performed. The wireless communication unit, the external communication unit, the memory unit and the display unit are controlled to transmit a control command by a touch input of a server and a user to each load control device.

That is, the load power information data received from the load control device 120 through the wireless communication unit 216 is stored in the memory unit 211. In this case, the received data content includes unique information of the smart gateway device to which the load control device belongs, unique information of the load control device, current power consumption of the load, and current state information. In addition, the central processing unit 215 processes the received data to generate and display power consumption information of the smart gateway, that is, data, and at this time, the power consumption information of the displayed gateway is the name / current of each load control device 120 It may be information such as power consumption / cumulative power consumption / electric charge / state (on, off, standby) of each load control device 120.

Meanwhile, the central processing unit 215 receives a user's control command from an input means such as a touch screen of the display unit 212 and transmits it to the load control device 120 through the wireless communication unit 216. The content of the control command signal includes a value of the unique information (ID) of the corresponding load control device 120 / a control command (power ON / OFF command). In addition, the central processing unit 215 includes the cumulative power consumption of the smart gateway or the current total power consumption of the smart gateway calculated based on the unique information of the smart gateway and power related information data of the load through the external communication unit 214. Power consumption information data of the smart gateway to the external monitoring server 100 and the like. In addition, the power consumption information data of the smart gateway transmitted to the external monitoring server 100, the data of the current power consumption and current state information of the load contained in the unique information of the load control device and the received load power related information data. Include.

 In addition, the control command signal from the monitoring server 100 is received through the external communication unit 214, and the load 130 is controlled by transmitting it to each load control device 120 through the wireless communication unit 216. .

Next, the wireless communication unit 216 adopts a short range wireless communication standard to perform short range wireless communication with the wireless communication unit 221 of the load control device 120. For example, an IEEE802.15.4 ZigBee wireless communication module may be mounted. Accordingly, the wireless communication unit 216 of the smart gateway device 110 and the wireless communication unit 221 of the load control device 120 perform wireless communication according to a mutually regulated protocol.

The memory unit 211 stores data received from the load control device 120 and processes the received data to display power consumption information of the gateway including various information (cumulative power consumption, current power consumption, and charge calculation). 212 may be displayed.

That is, the display unit 212 receives various information from the central processing unit 215 and displays power consumption information of the gateway. In addition, the control command signal for controlling the load control device 120 by a touch screen or button operation is transmitted to the central processing unit 215. In this case, the control command may be a command for controlling the state (on / off / standby) of the specific load control device 120.

The external communication unit 214 is a block for communicating with the central monitoring server 100, and can be equipped with various broadband networks such as WLAN, LAN, CDMA, Wibro, and the like.

As described above, each block of the smart gateway device 110 has been described in detail, and each block of the load control device 120 will be described below.

The controller 222 receives current and voltage values from the current / voltage measurer 226, calculates current power consumption, determines a current state of each load 130 according to the current power consumption, and includes power related information data of the load. To the smart gateway device 110 via the wireless communication unit 221. In addition, a control command signal (on / off) is received from the smart gateway device 110 through the wireless communication unit 221, and the power connection device of each load 130 is controlled (on / off) through the received control command. )do.

The memory unit 225 is mounted in the standby power check algorithm and discriminates whether the state of the home appliance is on / off / standby state. The wireless communication unit 221 adopts a short range wireless communication standard. For example, the IEEE 802.15.4 ZigBee wireless communication module may be mounted like the wireless communication unit 216 of the smart gateway device 110. In this manner, the wireless communication unit 216 of the smart gateway device 110 and the wireless communication unit 221 of the load control device 120 perform wireless transmission and reception according to a mutually regulated protocol.

The current / voltage measuring unit 226 is a block for measuring the current value and the voltage value from the power supply control unit 224 of each load. The measured current value / voltage value is converted into power consumption by the control unit 222.

The power controller 224 is a portion connected to a power supply (eg, an outlet, a multi-tap, etc.), and performs connection and disconnection with the power supply of each load according to the on / off command of the controller 222. At this time, the current supplied from the power supply device of each load 130 is transferred to the home appliance connection unit 223 through the power control unit 224. The home appliance connection unit 223 supplies power to the home appliance as a part to which the cord of the home appliance is connected.

3A is a diagram illustrating an example of information displayed in a smart gateway according to an embodiment of the present invention. Referring to FIG. 3, the smart gateway device 110 displays the information collected from each load control device 120 collected through the monitor screen 300. For example, the start date and time of use of the displayed power consumption 301 and the current time 302 are displayed at the top, and the ID of each load 130 is received from the load control device 120, and the user inputs the name of the ID. By input, the information about the load 130 is managed.

Therefore, the cumulative power consumption 304, the current power consumption 305, and the current state 306 of each load are collected for each home appliance 303. As described above, the current state 306 of each load indicates that the home appliance is turned on as 'in use', the unplugged state is marked as 'blocked', and the home appliance is turned off, but the cord is not pulled out. As a result, the standby power consumption state is displayed as 'standby state'.

In addition, by adding an item of the remote switch 307 that can control each load control device 120, the user can execute the connection or blocking of the load 130 by touching the screen. In this case, 'connection' refers to the same operation as connecting the code, 'blocking' refers to the same operation as the unplugged code.

4 is a diagram illustrating a detailed configuration of a message transmitted between each subject according to an embodiment of the present invention. The smart gateway device 110 collects data of each load control device 120 and transmits the data to the central monitoring server 100. In this case, the form of data transmitted between the devices is as shown in FIG.

The data 420 transmitted from the load control device 120 to the smart gateway device 110 includes ID (SG_ID), smart ID (LC_ID) of the smart gateway device 110 to which the load control device 120 belongs, Information such as current power consumption (PWR) and current state (eg, on / off / standby state) (STATUS) may be included.

On the other hand, the smart gateway device 110 collects the above-described data 420 from each load control device 120, and transmits the collected information to the monitoring server 100 again. In this case, the data 410 transmitted from the smart gateway device 110 to the monitoring server 100 includes an ID SG_ID of the smart gateway device 110, a cumulative power consumption PWR_SUM of the smart gateway device 110, and a smart gateway. Information such as the current total power consumption (PWR) of the device 110, the ID (LC_ID) of the load control device 120, the current power consumption (LC_PWR), the current state of the LC (on / off / standby) (LC_STATUS), etc. May be included.

On the contrary, the data 430 transmitted from the monitoring server 100 to each smart gateway device 110 is the ID (SG_ID) of the smart gateway device 110 to which the specific load control device 120 to be controlled belongs, and the specific load to be controlled. Information such as ID (LC_ID), control command (blocking / connection) of the control device 120 or the entire load control device 120 may be included.

In addition, the data 440 transmitted from each smart gateway device 110 to the load control device 120 is the smart gateway device 110 own ID (SG_ID), the specific load control device 120 to be controlled or the overall load control Information such as an ID LC_ID and a control command (block / connection) of the device 120 may be included.

3B is a diagram illustrating information transmitted from each smart gateway and collected and displayed on a monitoring server according to an exemplary embodiment of the present invention. Referring to FIG. 5, in the monitoring server 100, information such as a current date and time, a location of the smart gateway device 110, and current total power consumption of the load control devices 120 belonging to the smart gateway device 110 may be stored. Can be displayed. At this time, the name of the home appliance connected to each load control device 120 is displayed, and a menu for controlling the current power consumption and the connection / blocking command of each load control device 120 is displayed.

Hereinafter, referring to FIGS. 5 to 7, an intelligent load control device, a smart gateway, and a monitoring server, according to an embodiment of the present invention, are not overlapped with the description with reference to FIGS. 1 to 4. The integrated power control method of the power grid system will be described in detail.

Referring to Figure 5, as described above, is performed on an intelligent power grid system comprising a load control device, a smart gateway and a monitoring server, and referring to Figure 5, the corresponding smart gateway device (see step S00) The process of the 110 condensing the plurality of load control devices 120 and the micro network and participating in the specific load control device 120 included in the specific wireless coverage area and the monitoring server 100 and the monitoring server ( A process of forming a macro network by a plurality of smart gateway devices 110 managed by 100 is performed. On the premise of this, the integrated power control method of the intelligent power grid system of the present invention, the step of generating power-related information of the load from each load connected to it in the load control device (S10), the power control of the load in the load control device Transmitting the information to the smart gateway device through a wireless communication means (S20), the power related information of the load for the corresponding load transmitted from each load control device included in the micro network formed by the smart gateway device; Receiving and generating power consumption information data of the smart gateway based on this, and transmitting the generated power consumption information data of the smart gateway to the monitoring server (S30) and receiving and storing the power consumption information data of the smart gateway from the respective smart gateways (S40). The implementation of each step is described above. Prior Fig. 1 to the load control apparatus as described with respect to Figure 4, it may be performed by each component of the smart gateway and monitoring server.

6 is a signal flow diagram illustrating a procedure for controlling each load control device in a monitoring server according to an embodiment of the present invention. Referring to FIG. 6, when a user inputs an on / off control command for a specific load control device 120 through a graphical user interface (GUI) in the monitoring server 100, the load control device 120 belongs to a smart. The gateway device 110 requests the on / off control of the load control device 120 (S601).

The LC on / off control request message is transmitted to the smart gateway device 110 (S602), and the smart gateway device 110 requests LC on / off to the load control device 120 (S603 and S604). do. The load control device 120 receiving the LC control message performs an on / off operation and transmits a result to the smart gateway device 110 (S605 and S606). If the control is successful, the smart gateway device 110 reflects the result in the database, and transmits the result to the monitoring server 100 (S607, S608). Finally, the monitoring server 100 displays the success or failure of the on / off control command of the load control device 120 through the display window, and reflects the result of the success (S609).

7 is a signal flow diagram illustrating a procedure for controlling each load control device in a smart gateway according to an embodiment of the present invention. Referring to FIG. 7, when a user inputs an on / off control command to a specific load control device 120 through a GUI in the smart gateway device 110, the load control device 120 is transmitted to the load control device 120. Request on / off control (S701, S702). The load control device 120 receiving the LC control message performs an on / off operation and transmits a result to the smart gateway device 110 (S703). If the control is successful, the smart gateway device 110 reflects the result in the database, and transmits the result to the monitoring server 100 (S704, S705). Finally, the monitoring server 100 displays the success or failure of the on / off control command of the load control device 120 through the display window, and reflects the result of the success (S706).

On the other hand, the on / off state control of the load control device 120 proceeds irrespective of the current state of the home appliances, as described above in Figures 6 and 7 the monitoring server 100 and the smart gateway device 110 Control is possible through GUI provided in).

In addition, the cumulative power consumption data is basically stored in the smart gateway device 110, the monitoring server 100 collects from each smart gateway device 110 for a certain period and stores the same data separately in a database.

At this time, the cumulative power consumption data stored in the smart gateway device 110 and the monitoring server 100 is the day, month, year cumulative power consumption and electricity bills for each load control device 120, CO2 generation amount and each smart gateway device Day, month, year cumulative power consumption, electricity bills, CO2 emissions, etc.

In addition, the variable for calculating the electricity bill and CO2 generation amount can be input through the GUI in both the smart gateway device 110 and the monitoring server 100, if the monitoring server 100 is set through the monitoring server 100 Batch transfers the variable values to each smart gateway device 110.

8 is a signal flow diagram illustrating a network configuration procedure for avoiding interference with an adjacent micro network according to an embodiment of the present invention. According to an exemplary embodiment of the present invention, each smart gateway device 110 is designed to avoid interference with another micro network configured in an adjacent smart gateway device 110 so that data transmitted in the corresponding micro network is transferred to another micro network. Transmitted to prevent malfunction.

That is, the smart gateway device 110 serves as a PAN coordinator, and establishes and manages a network. Therefore, the smart gateway device 110 only participates in the micro network in which the load control device 120 having a MAC address previously input by the user through the GUI participates in the corresponding micro network (ie, a device (ie, a device) participating in the same micro network. Only the load control devices 120 may transmit / receive data.

Referring to FIG. 8, when each smart gateway device 110 establishes a micro network (S801), the load control device 120 that wants to be included in the micro network transmits a network scan message to each smart gateway device 110 ( S802), and receives a beacon message from the smart gateway device 110 (S803).

Then, the load control device 120 scans the network for a predetermined time as described above, and then stores the information related to the collected smart gateway device 110. With reference to the collected information, the smart gateway device 110 sequentially requests the joining of the micro network (Join) (S804 and S805).

Each smart gateway device 110 compares the stored load control device 120 with the MCA (Mac Address) to determine whether to participate, and responds to the load control device 120 with the result (S806, S807). The load control device 120 having received the response message regarding the participation performs the operation as the load control device 120 according to the participation decision (S809), and transmits its data to the smart gateway device 110 ( S810).

On the other hand, as a method of checking the standby power in the load control device 120 may be automatically recognized by the load control device 120, may be implemented to be input by the smart gateway device 110 or the monitoring server 100. .

For example, the method of implementing the automatic recognition by the load control device 120 first connects the power of the home appliance to be used (ie, the load 130) to the load control device 120 in an Off (standby) state. Then, after the load control device 120 is reset by pressing the reset switch of the load control device 120 for 2 seconds or more, it is pressed until the LED is turned on. Accordingly, the load control device 120 is changed to the On state, and after about 2 minutes is changed to the Off state. The load control device 120 stores the value measured during the period as standby power.

Next, the method implemented as an input by the smart gateway device 110 and the monitoring server 100, first receives the standby power value of each load control device 120 from the user through the provided GUI. The standby power value is set in the load control device 120 in a similar procedure to the on / off state control of the load control device 120.

9 and 10 are diagrams illustrating a result of analyzing and providing information collected by a monitoring server according to an exemplary embodiment of the present invention. Referring to FIG. 9, the power consumption state may be displayed in a graph in real time, and the monthly power consumption may also be displayed in a graph. In addition, referring to FIG. 10, the power consumption for each smart gateway device 110 may be represented by a graph, or the total power consumption compared with the same month of the previous year may be represented by a graph.

On the other hand, in the embodiment of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100: monitoring server 110: smart gateway
111: electronic electricity meter 120: load control device
121: power strip 122: outlet
211: memory unit 212: display unit
213: timer 214: external communication unit
215: central processing unit 216: wireless communication unit
221: wireless communication unit 222: control unit
223: home appliance connection 224: power control unit
225: memory unit 226: current / voltage measurement unit

Claims (8)

In the smart gateway device used in the intelligent power grid system,
A wireless communication unit 216 for performing wireless communication with at least one load control device 120 to receive a power related information data signal of a load transmitted from the load control device and to transmit a control command signal to the load control device;
A memory unit 211 for storing power-related information data of a load received from the load control device 120;
An external communication unit 214 for transmitting power consumption information data of the smart gateway to the external monitoring server 100 and receiving a control command signal from the external monitoring server 100;
A display unit 212 displaying power consumption information of the smart gateway and receiving a control command by a user's touch input; And
Receives a load power information data signal received from each load control device 120 to determine whether the load control device included in the micro network of the smart gateway, and load power information when the load control device included in the micro network Save the data and generate the power consumption information data of the smart gateway based on the data to display the power consumption information of the gateway on the display unit, and transmit to the external monitoring server 100, the touch input of the external monitoring server and the user A central processing unit (215) for controlling the wireless communication unit, the external communication unit, the memory unit, and the display unit to transmit a control command to each load control apparatus; Smart gateway device comprising a.
The method of claim 1,
The power related information data of the load received through the wireless communication unit 216 may include unique information of the smart gateway device to which the load control device belongs, unique information of the load control device, current power consumption of the load, and current state information. Smart gateway device comprising data.
The method of claim 1,
The power consumption information data of the smart gateway transmitted to the external monitoring server 100 through the external communication unit 214 is the cumulative power consumption of the smart gateway calculated based on the unique information of the smart gateway and the power related information data of the load. Smart gateway device comprising the current total power consumption of the smart gateway.
The method of claim 1,
The power consumption information data of the smart gateway transmitted to the external monitoring server 100 through the external communication unit 214 is the current consumption power of the load included in the unique information of the load control device and the received load power related information data, and the current. Smart gateway device comprising the data of the status information.
The method of claim 1,
The control command signal received from the monitoring server (100), smart gateway device characterized in that it comprises the unique information of the smart gateway to which the load control device to be controlled, the unique information and the control command information of the load control device.
The method of claim 1,
The control command signal transmitted from the smart gateway to the load control device includes the unique information of the smart gateway, the unique information of the load control device, and the control command information.
The method of claim 1,
The control command transmitted to each load control device is a load control device that receives the control command is an on or off control command for controlling the power connection of the load connected to itself according to the received control command Smart Gateway Device. The method of claim 1,
The memory unit includes a unique number of the load control device included in the micro network of the smart gateway, and receives the unique number of the load control device from the load control device and compares them to thereby load control included in the micro network. Smart gateway device characterized in that it determines whether the device.

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