阅读说明：本技术 配电盘的监测及负载控制系统 (Monitoring and load control system for distribution board ) 是由 李晟准 于 2018-12-19 设计创作，主要内容包括：本发明实施例的配电盘的监测及负载控制系统包括：网关,获取所述配电盘中包括的每个断路器的温度信息、以及与所述断路器对应的线路的电流量信息,基于获取的所述温度信息来获取每个所述断路器的容量信息,并且基于获取的容量信息和电流量信息来检测与需要调节负载的线路对应的断路器；以及负载控制装置,通过停止与检测出的所述断路器连接的至少一个设备的动作来调节所述线路的负载。(The monitoring and load control system of the distribution board of the embodiment of the invention comprises: a gateway that acquires temperature information of each circuit breaker included in the distribution board and current amount information of a line corresponding to the circuit breaker, acquires capacity information of each circuit breaker based on the acquired temperature information, and detects a circuit breaker corresponding to a line for which load adjustment is required based on the acquired capacity information and current amount information; and a load control device for adjusting the load of the line by stopping the operation of at least one device connected to the detected circuit breaker.)

1. A monitoring and load control system for a power distribution panel, comprising:

a gateway that acquires temperature information of each circuit breaker included in the distribution board and current amount information of a line corresponding to the circuit breaker, acquires capacity information of each circuit breaker based on the acquired temperature information, and detects a circuit breaker corresponding to a line for which load adjustment is required based on the acquired capacity information and current amount information; and

and a load control device for adjusting the load of the line by stopping the operation of at least one device connected to the detected circuit breaker.

2. The panelboard monitoring and load control system of claim 1, wherein,

further comprising a temperature sensing device that acquires data for acquiring temperature information of each circuit breaker included in the distribution board,

the gateway receives the data from the temperature sensing devices and uses the received data to obtain temperature information for each of the circuit breakers.

3. The panelboard monitoring and load control system of claim 2, wherein,

the temperature sensing device includes a thermal imaging sensor that acquires thermal imaging data for each of the circuit breakers.

4. The panelboard monitoring and load control system of claim 1, wherein,

the gateway receives current amount information of a line corresponding to the circuit breaker from a measuring instrument corresponding to the circuit breaker.

5. The panelboard monitoring and load control system of claim 1, wherein,

storing, in a memory of the gateway, circuit breaker temperature capacity information including capacity information corresponding to each temperature for each of the circuit breakers,

the gateway acquires capacity information based on the acquired temperature information from the stored circuit breaker temperature capacity information.

6. The panelboard monitoring and load control system of claim 1, wherein,

the gateway detects a circuit breaker having a current amount of a corresponding line of the circuit breaker equal to or more than the acquired capacity from among the circuit breakers,

and the gateway transmits a load regulation request including the identification information of the detected circuit breaker, the acquired capacity information, and the current amount information of the corresponding line to the load control device.

7. The panelboard monitoring and load control system of claim 1, wherein,

the gateway detects a circuit breaker of which the difference between the acquired capacity and the current amount of the corresponding line is smaller than a reference value from among the circuit breakers,

and the gateway transmits a load regulation request including the identification information of the detected circuit breaker, the acquired capacity information, and the current amount information of the corresponding line to the load control device.

8. The panelboard monitoring and load control system of claim 1, wherein,

the load control device transmits a control signal for stopping the operation to at least one of the devices based on the priority of the device connected to the detected circuit breaker and the power consumption of each of the devices.

9. The panelboard monitoring and load control system of claim 8, wherein,

when the detected circuit breaker is a first circuit breaker and a second circuit breaker which is a lower circuit breaker of the first circuit breaker,

the load control device stops the action of at least one of the devices connected with the first circuit breaker and the device connected with the second circuit breaker so as to adjust the load of the first line corresponding to the first circuit breaker and the load of the second line corresponding to the second circuit breaker.

10. The panelboard monitoring and load control system of claim 9, wherein,

the load control device stops the operation of at least one of the devices connected to the first circuit breaker based on the changed current amount information of the first line and the capacity information of the first circuit breaker to adjust the load of the first line.

11. A monitoring and load control system for a power distribution panel, comprising:

a temperature sensing device that acquires data for acquiring temperature information of each circuit breaker included in the distribution board;

a gateway receiving the data from the temperature sensing device and receiving current amount information of a line corresponding to the circuit breaker from a measuring instrument corresponding to the circuit breaker; and

and a load control device receiving the data and the current amount information from the gateway, acquiring temperature information of each of the circuit breakers using the received data, acquiring capacity information of each of the circuit breakers based on the acquired temperature information, detecting a circuit breaker corresponding to a line requiring load adjustment based on the acquired capacity information and current amount information, and adjusting a load of the line by stopping an operation of at least one of devices connected to the detected circuit breaker.

12. The panelboard monitoring and load control system of claim 11, wherein,

the load control device detects the current amount of the corresponding line from the circuit breakers as the circuit breaker with the acquired capacity or more based on the acquired capacity information and the current amount information,

and the load control device transmits a control signal for stopping the operation to at least one of the devices connected to the detected breaker.

13. The panelboard monitoring and load control system of claim 12, wherein,

the load control apparatus transmits the control signal to the at least one device based on the detected priority of the device connected to the circuit breaker and the power consumption of each of the devices.

Technical Field

The present invention relates to a monitoring and load control system for monitoring the state of a circuit breaker provided in a distribution board to control a load.

Background

A number of power equipment for power conversion, transmission, measurement, and the like are arranged in the switchboard. Among them, a circuit breaker (circuit breaker) disposed on a line transmitting power can protect a distribution board and loads or various systems connected thereto by cutting the line when factors such as overcurrent, overvoltage, undervoltage, short circuit, and ground are detected on the line.

For example, a circuit breaker may break a line when the amount of current in the line exceeds the capacity of the circuit breaker. When a line is cut off, the power supply of each device is turned off because the power supply of the device connected to the line is cut off.

Some devices may not have any problem even if the power is suddenly turned off, but a specific device may have a failure or damage in an internal circuit or composition. In particular, when the device connected to the line is a data processing apparatus such as a Personal Computer (PC) or a server, data may be lost. In addition, certain equipment needs to maintain a constant supply of power as much as possible (e.g., refrigeration cycle equipment of a refrigerated warehouse, etc.).

Therefore, it is necessary to appropriately adjust the amount of current flowing in the line to minimize the breaking action of the circuit breaker.

Disclosure of Invention

Problems to be solved by the invention

An object of the present invention is to provide a monitoring and load control system for a distribution board, which can minimize a line breaking operation of a breaker by controlling a load based on states of the breaker and a line provided in the distribution board.

Technical scheme for solving problems

A monitoring and load control system for a distribution board according to an embodiment of the present invention includes: a gateway that acquires temperature information of each circuit breaker included in the distribution board and current amount information of a line corresponding to the circuit breaker, acquires capacity information of each circuit breaker based on the acquired temperature information, and detects a circuit breaker corresponding to a line for which load adjustment is required based on the acquired capacity information and current amount information; and a load control device for adjusting the load of the line by stopping the operation of at least one of the devices connected to the detected circuit breaker.

The monitoring and load control system further includes a temperature sensing device that acquires data for acquiring temperature information of each circuit breaker included in the switchboard, and the gateway may receive the data from the temperature sensing device and acquire the temperature information of each circuit breaker using the received data.

According to an embodiment, the temperature sensing device may comprise a thermal imaging sensor that acquires thermal imaging data for each of the circuit breakers.

The gateway may receive current amount information of a line corresponding to the circuit breaker from a measuring instrument corresponding to the circuit breaker.

In the memory of the gateway, circuit breaker temperature capacity information including capacity information corresponding to each temperature is stored for each circuit breaker, and the gateway may acquire the capacity information based on the acquired temperature information from the stored circuit breaker temperature capacity information.

According to an embodiment, the gateway may detect a breaker having a current amount of a corresponding line greater than or equal to the acquired capacity from the breakers, and transmit a load adjustment request including identification information of the detected breaker, the acquired capacity information, and the current amount information of the corresponding line to the load control device.

According to an embodiment, the gateway may detect a breaker, of which a difference between the acquired capacity and the amount of current of the corresponding line is less than a reference value, from among the breakers, and transmit a load adjustment request including identification information of the detected breaker, the acquired capacity information, and the amount of current of the corresponding line to the load control apparatus.

The load control device may transmit a control signal for stopping an operation to at least one of the devices based on the detected priority of the device connected to the circuit breaker and the power consumption of each of the devices.

A monitoring and load control system for a distribution board according to an embodiment of the present invention includes: a temperature sensing device that acquires data for acquiring temperature information of each circuit breaker included in the distribution board; a gateway receiving the data from the temperature sensing device and receiving current amount information of a line corresponding to the circuit breaker from a measuring instrument corresponding to the circuit breaker; and a load control device receiving the data and the current amount information from the gateway, acquiring temperature information of each of the circuit breakers using the received data, acquiring capacity information of each of the circuit breakers based on the acquired temperature information, detecting a circuit breaker corresponding to a line requiring load adjustment based on the acquired capacity information and current amount information, and adjusting a load of the line by stopping an operation of at least one of devices connected to the detected circuit breaker.

Effects of the invention

According to various embodiments of the present invention, the monitoring and load control system adjusts the load based on the capacity varying with the temperature of the circuit breaker, thereby being able to prevent an unexpected line cut in advance.

In addition, according to the present invention, the monitoring and load control system can effectively prevent unexpected operation stop of a device having a high importance or having to continue to operate by stopping only some devices according to the priority. Thus, an administrator or a user can effectively manage the devices existing in the building or facility, etc. through the monitoring and load control system.

Drawings

FIG. 1 is a schematic block diagram of a monitoring and load control system useful in explaining embodiments of the present invention.

Fig. 2 is a schematic block diagram of a gateway provided in a distribution board according to an embodiment of the present invention.

Fig. 3 is a schematic block diagram of a load control device according to an embodiment of the present invention.

Fig. 4 is a ladder diagram for illustrating the operation of the monitoring and load control system according to an embodiment of the present invention.

Fig. 5 and 6 are exemplary diagrams for explaining the operation of the monitoring and load control system shown in fig. 4.

Fig. 7 is a flowchart for explaining the operation of the load control device included in the monitoring and load control system according to another embodiment of the present invention.

Detailed Description

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, and the same or similar constituent elements will be denoted by the same reference numerals regardless of the reference numerals, and repeated description thereof will be omitted. The suffixes "module" and "portion" of the constituent elements used in the following description are given or mixed only in consideration of the ease of writing of the specification, and do not have meanings or functions distinguished from each other by themselves. In describing the embodiments disclosed in the present specification, if it is determined that detailed description of related known techniques may obscure the subject matter of the embodiments disclosed in the present specification, detailed description will be omitted. The drawings are only for the purpose of facilitating understanding of the embodiments disclosed in the present specification, and it should be understood that the technical idea disclosed in the present specification is not limited by the drawings, and encompasses all modifications, equivalents, and alternatives included in the technical spirit and scope of the present invention.

Terms including ordinal numbers of first, second, etc. may be used to describe various components, but these components should not be limited to the terms. The terms are used only for the purpose of distinguishing one constituent element from another constituent element.

When a component is referred to as being "connected" or "coupled" to another component, it is to be understood that the component may be directly connected or coupled to the other component, but other components may be interposed therebetween. Conversely, when a component is referred to as being "directly connected" or "directly coupled" to another component, it is understood that no other component is present therebetween.

Unless the context clearly dictates otherwise, expressions in the singular include expressions in the plural.

The terms "comprising" or "having" and the like in this specification should be understood to mean that there are features, numbers, steps, actions, elements, components, or combinations thereof described in the specification, and do not preclude the possibility of one or more other features or numbers, steps, actions, elements, components, or combinations thereof being present or additional to each other.

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

FIG. 1 is a schematic block diagram illustrating a monitoring and load control system according to an embodiment of the present invention.

For convenience of explanation, only three circuit breakers, three measuring instruments, and three loads are shown in fig. 1, but the number of circuit breakers, measuring instruments, and loads may be variously changed.

Referring to fig. 1, the monitoring and load control system 1 may include a gateway 100, a load control device 20, and a temperature sensing device 13.

The gateway 100 and the temperature sensing device 13 may be arranged in the switchboard panel 10. According to an embodiment, the gateway 100 may also be arranged outside the switchboard panel 10.

The gateway 100 may be communicatively connected with the measurement instruments 12a, 12b, 12c in the switchboard panel 10. The gateway 100 may periodically or non-periodically acquire information such as the amount of current or voltage of each line on which the measuring instruments 12a, 12b, 12c are arranged. For example, when the measuring instruments 12a, 12b, 12c are ammeters, the gateway 100 may acquire electricity amount information of each line.

According to an embodiment, the gateway 100 may also be communicatively connected to the circuit breakers 11a, 11b, 11c to acquire various information about the actions of the circuit breakers. For example, each of the circuit breakers 11a, 11b, 11c may be implemented as an ACB (air circuit breaker), an MCCB (molded case circuit breaker), an MCB (molded case circuit breaker), or the like.

The gateway 100 may transmit the acquired information or data generated by processing the acquired information to the load control device 20.

The temperature sensing device 13 measures the temperature of the circuit breakers 11a, 11b, 11c arranged in the switchboard panel 10. For example, the temperature sensing device 13 may be implemented as a thermal imaging sensor comprising a thermal imaging camera that acquires thermal imaging data (thermography) of each circuit breaker 11a, 11b, 11 c. The thermal imaging sensor may be connected to the gateway 100 to transmit the acquired thermal imaging data to the gateway 100. According to an embodiment, the temperature sensing device 13 may further include a temperature sensor in contact with each of the circuit breakers 11a to 11c or included in each of the circuit breakers 11a to 11 c. In this case, each temperature sensor may transmit the detected temperature information to the gateway 100.

Each of the loads 30a, 30b, and 30c may include at least one device that operates upon receiving power supply from the distribution board.

The load control device 20 may be connected to the devices included in the loads 30a, 30b, 30c to receive various information related to the actions of the devices or to control the actions of the devices.

For example, the load control device 20 may be various management servers or management devices, such as a Building Management System (BMS), a Facility Management System (FMS), and the like, but is not limited thereto.

According to an embodiment, the monitoring and load control system 1 may further comprise an HMI (human machine interface) 40. The HMI40 may receive various information relating to the state of action in the switchboard panel 10 from the gateway 100 and display the information in graphical or textual form. In addition, the HMI40 may receive various commands or requests and the like relating to the actions of the switchboard from an administrator or a user, and transmit the received commands or requests to the gateway 100.

On the other hand, the circuit breakers 11a, 11b, 11c may cut the line when the amount of current flowing in the line exceeds a predetermined value. The predetermined value may correspond to a circuit breaker capacity. In addition, the breaker capacity may vary depending on the temperature of the breakers 11a, 11b, 11 c.

For example, as the temperature of the circuit breaker increases, the circuit breaker capacity may decrease. Accordingly, when a device corresponding to a load (e.g., the first load 30a) connected to a specific line (e.g., the first line) is operated for a long time, a current is supplied through the first line for a long time, and thus the temperature of the circuit breaker (e.g., the first circuit breaker 11a) may gradually increase. The capacity of the first circuit breaker 11a is reduced as the temperature of the first circuit breaker 11a gradually increases, and the capacity may be less than the amount of current of the first line. Therefore, the first circuit breaker 11a may cut off the first line, and the devices included in the first load 30a connected to the first line may fail to operate. In this case, there may be a problem that some devices included in the first load 30a cannot operate even if they must continue to operate.

Next, an embodiment related to the action of the monitoring and load control system for solving the above-described problems is described with reference to fig. 2 to 7.

First, referring to fig. 2 and 3, a gateway and a load control device included in a monitoring and load control system according to an embodiment of the present invention will be described in more detail.

Fig. 2 is a schematic block diagram of a gateway provided in a distribution board according to an embodiment of the present invention.

Referring to fig. 2, the gateway 100 may include a communication part 110, a memory 120, and a controller 130. For convenience of explanation, only a partial configuration of the gateway 100 is shown in fig. 2, but the gateway 100 may include more configurations.

The communication unit 110 connects the gateway 100 to the measuring instruments 12a, 12b, and 12c, the temperature sensing device 13, the load control device 20, and the HMI40, and realizes transmission and reception of information and data with the above configuration. The communication unit 110 may support at least one of wired communication methods such as RS485, USB, and ethernet, and wireless communication methods such as bluetooth, Zigbee, and Wi-Fi.

The memory 120 may store various information related to the actions of the gateway 100.

According to an embodiment of the present invention, the memory 120 may store thermal imaging analysis information 121 for analyzing thermal imaging data received from the temperature sensing device 13, thereby acquiring temperature information of each circuit breaker 11a, 11b, 11 c. The thermal imaging analysis information 121 may be an algorithm for acquiring temperature information of each circuit breaker 11a, 11b, 11c from thermal imaging data.

In addition, the memory 120 may further store breaker temperature capacity information 122, the breaker temperature capacity information 122 being used to acquire breaker capacity information based on the temperature information of each breaker 11a, 11b, 11 c. The circuit breaker temperature capacity information 122 may be a table containing capacity information corresponding to the temperature of each circuit breaker 11a, 11b, 11 c.

The controller 130 may control the overall action of the gateway 100. In particular, the controller 130 may analyze the thermal imaging data received through the communication part 110 based on the thermal imaging analysis information 121 stored in the memory 120 to acquire temperature information of each circuit breaker 11a, 11b, 11 c.

In addition, the controller 130 may acquire the capacity information of each circuit breaker 11a, 11b, 11c from the circuit breaker temperature capacity information 122 stored in the memory 120 based on the acquired temperature information of each circuit breaker 11a, 11b, 11 c.

The controller 130 may detect a circuit breaker corresponding to a line on which a load is to be regulated, based on the capacity information of each circuit breaker 11a, 11b, 11c and the current amount information acquired from the measuring instruments 12a, 12b, 12 c. The controller 130 may transmit information (identification information) of the detected circuit breaker, the acquired capacity information, and the current amount information to the load control device 20.

Such a controller 130 may be implemented using at least one of ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs (field programmable gate arrays), processors (processors), controllers (controllers), micro-controllers), microprocessors (microprocessors), and electrical units for performing other functions (the same applies to the controller 23 of fig. 3).

Fig. 3 is a schematic block diagram of a load control device according to an embodiment of the present invention.

Referring to fig. 3, the load control device 20 may include a communication part 21, a memory 22, and a controller 23. For convenience of explanation, only a partial configuration of the load control device 20 is shown in fig. 3, but the load control device 20 may include more configurations.

The communication unit 21 connects the load control device 20 to the gateway 100 and devices included in the loads 30a, 30b, and 30c, and realizes transmission and reception of various information and data. The communication unit 21 may support at least one of wired communication methods such as RS485, USB, and ethernet, and wireless communication methods such as bluetooth, Zigbee, and Wi-Fi.

The memory 22 may store various information related to the operation of the load control device 20.

In particular, memory 22 may include device priority information 221, according to embodiments of the present invention.

The device priority information 221 may be priority information between devices connected to the load control apparatus 20. For example, a device with higher priority may be a device with higher importance (persistent action necessity). The device priority information 221 may be generated or changed by an administrator of the system, but is not limited thereto.

When the controller 23 intends to stop the operation of at least a part of the devices based on the information (for example, the identification information of the breaker, the capacity information, and the current amount information detected in fig. 3) received from the gateway 100, the operation of the devices may be stopped in the order of priority from low to high based on the device priority information 221.

In addition, the memory 22 may store device control information 222 including various information or data necessary for controlling the device, and device power consumption information 223 including power consumption at the time of each device operation. When the controller 23 intends to stop the operation of at least a part of the devices, at least one device to be stopped may be selected based on the device priority information 221 and the device power consumption information 223.

Fig. 4 is a ladder diagram for illustrating the operation of the monitoring and load control system according to an embodiment of the present invention.

Referring to fig. 4, the gateway 100 may monitor the temperature of each of the circuit breakers 11a to 11c and the amount of current of the line corresponding to each of the circuit breakers 11a to 11c (S100).

The controller 130 of the gateway 100 may acquire temperature information of each of the circuit breakers 11a to 11c based on data (e.g., thermal imaging data) acquired from the temperature sensing device 13, thereby monitoring the temperature of each of the circuit breakers 11a to 11 c.

In addition, the controller 130 may monitor the amount of current of the line corresponding to each of the circuit breakers 11a to 11c by acquiring the information of the amount of current of each line from each of the measuring instruments 12a to 12 c.

Such monitoring actions may be performed periodically or each time a particular event occurs, but this is not required.

The gateway 100 may acquire the capacity information of the circuit breakers 11a to 11c based on the monitored temperature (S110).

The controller 130 may acquire the capacity information of each of the circuit breakers 11a to 11c from the circuit breaker temperature capacity information 122 stored in the memory 120 based on the monitored temperature.

For each of the breakers 11a to 11c, the gateway 100 may compare a difference between the capacity acquired in step S110 and the amount of current acquired in step S100 with a reference value (S120).

According to an embodiment, gateway 100 may also confirm whether the obtained amount of current exceeds the obtained capacity.

If the comparison result shows that there is a circuit breaker whose difference between the capacity and the amount of current is less than the reference value (yes in S120), the gateway 100 may transmit identification information of the circuit breaker, capacity information, and amount of current information to the load control device 20 (S130).

Specifically, when there is a circuit breaker whose difference between the capacity and the amount of current is smaller than a reference value, the gateway 100 may transmit a regulation request of a load connected with the circuit breaker to the load control device 20. The adjustment request may include identification information of the circuit breaker, capacity information acquired in step S110, and current amount information (current amount information of a line corresponding to the circuit breaker) acquired in step S100.

The load control device 20 may acquire priority information and power consumption information of the equipment connected to the circuit breaker based on the received identification information (S140).

The controller 23 of the load control device 20 may acquire priority information of a device connected to the circuit breaker from the device priority information 221 stored in the memory 22. In addition, the controller 23 may acquire power consumption information of the device connected to the circuit breaker from the device power consumption information 223 stored in the memory 22. At this time, the controller 23 may acquire only priority information and power consumption information of a device currently operating among devices connected to the circuit breaker, without acquiring priority information and power consumption information of a device not operating.

The load control device 20 may stop the operation of at least one device connected to the circuit breaker based on the acquired priority information and power consumption information (S150).

When the operation of a part of the equipment connected to the breaker is stopped, the amount of current of the line corresponding to the breaker may be reduced. That is, the controller 23 may adjust the load by stopping the operation of at least one device based on the priority information and the power consumption information in order to make the difference between the capacity and the amount of current reach the reference value or more. As an example related to this, the following is explained with reference to fig. 5 and 6.

Fig. 5 and 6 are exemplary diagrams for explaining the operation of the monitoring and load control system shown in fig. 4.

Referring to fig. 5 and 6, the circuit breakers 11a to 11c may be configured to include an upper circuit breaker 11a and lower circuit breakers 11b and 11c connected to the upper circuit breaker, but are not limited thereto. In this case, the upper breaker 11a may be connected with the first device 301, the second device 302, the third device 303, the fourth device 304, the fifth device 305, and the sixth device 306, the first lower breaker 11b may be connected with the first device 301, the second device 302, and the third device 303, and the second lower breaker 11c may be connected with the fourth device 304, the fifth device 305, and the sixth device 306. The connections herein may include direct connections and indirect connections.

According to the embodiment shown in fig. 5, the current supplied to the line configured with the upper breaker 11a can be supplied to the devices 301 to 306 via the line configured with the lower breakers 11b, 11 c.

Each measuring instrument 12a, 12b, 12c can obtain the current flow of the line. For example, the first measuring instrument 12a may obtain the amount of current of the line on which the upper breaker 11a is disposed, the second measuring instrument 12b may obtain the amount of current of the line on which the first lower breaker 11b is disposed, and the third measuring instrument 12c may obtain the amount of current of the line on which the second lower breaker 11c is disposed. The measuring instruments 12a to 12c may transmit electricity amount information containing the acquired amount of electricity to the gateway 100. The current amount information may be periodically or continuously acquired, but according to an embodiment, the current amount information may also be acquired each time a specific event occurs.

In addition, although not shown, the temperature sensing device 13 may transmit data for measuring the temperature of the circuit breakers 11a to 11c to the gateway 100. For example, when the temperature sensing device 13 includes a thermal imaging camera, the temperature sensing device 13 may acquire thermal imaging data of the circuit breakers 11a to 11c and transmit it to the gateway 100.

The gateway 100 may use the thermal imaging analysis information 121 stored in the memory 120 and measure the temperature of each of the circuit breakers 11a to 11c from the acquired thermal imaging data.

The gateway 100 may acquire the capacity information corresponding to the temperature of each of the circuit breakers 11a to 11c from the circuit breaker temperature capacity information 122 stored in the memory 120.

For convenience of explanation, hereinafter, it is assumed that the capacity of the upper circuit breaker 11a is 30kA when the temperature is lower than 30 ℃, and 24kA when the temperature is 50 ℃ or higher. In addition, it is assumed that the initial temperature of the upper breaker 11a is 25 ℃, and the temperature of the upper breaker 11a measured according to the thermal imaging data is 50 ℃.

According to the above assumption, the capacity of the upper breaker 11a in the capacity information acquired by the gateway 100 may correspond to 24 kA.

The gateway 100 may compare the amount of current obtained from the measuring instruments 12a to 12c with the capacity obtained for the circuit breakers 11a to 11c, thereby detecting the circuit breaker corresponding to the line on which the load (or the amount of current) needs to be adjusted.

For example, when the amount of current obtained from the first measuring instrument 12a is 24kA or more, the gateway 100 may detect a line corresponding to the upper circuit breaker 11a as a line requiring load adjustment.

According to the embodiment, the gateway 100 may also detect a line corresponding to the upper circuit breaker 11a as a line requiring load adjustment when a difference between the capacity of the upper circuit breaker 11a and the amount of current acquired from the first measuring instrument 12a is less than a reference value.

The gateway 100 may transmit a load adjustment request for a line for which load adjustment is required to the load control device 20. The load regulation request may include identification information of the upper breaker 11a corresponding to the line, capacity information acquired for the upper breaker 11a, and current amount information acquired from the first measuring instrument 12a corresponding to the upper breaker 11 a.

The load control device 20 can acquire priority information of the devices 301 to 306 connected to the upper circuit breaker 11a and power consumption information of each device 301 to 306 from the memory 22 based on the received load adjustment request. Wherein the devices 301-306 may be currently operating.

The load control device 20 may stop the action of at least one apparatus based on the acquired priority information and power consumption information.

As an example, the load control apparatus 20 may calculate the amount of current that changes in the line when the second device 302 stops operating, based on the power consumption of the device (e.g., the second device 302) with the lowest priority among the devices 301 to 306. When the calculated current amount is less than 24kA, the load control device 20 may transmit a control signal OFF for stopping the action of the second appliance 302 to the second appliance 302.

In contrast, when the calculated current amount is still 24kA or more, the load control apparatus 20 may calculate the current amount that changes in the line when the second device 302 and the fourth device 304 stop operating, based on the power consumption of the device (e.g., the fourth device 304) of the devices 301 to 306 having the lower priority. When the calculated current amount is less than 24kA, the load control apparatus 20 may transmit a control signal OFF for stopping the actions of the second device 302 and the fourth device 304 to the second device 302 and the fourth device 304, respectively. The control signal OFF may be generated and transmitted based on the device control information 222 stored in the memory 22.

As another example, the load control device 20 may first stop the operation of the second device 302 having the lowest priority among the devices 301 to 306, and then confirm whether or not the load adjustment request of the line corresponding to the upper circuit breaker 11a is received again from the gateway 100. When the load adjustment request is received again, the load control device 20 may stop the action of the fourth device 304 of the second lowest priority. That is, when receiving the load adjustment request, the load control device 20 may repeatedly perform an action of stopping the action of the device having the lowest priority among the devices being operated.

When receiving a load regulation request for a line corresponding to the first lower circuit breaker 11b, the load control device 20 may stop the operation of at least one of the devices 301-303 connected to the first lower circuit breaker 11b in a similar manner.

On the other hand, when receiving the load adjustment request of the line corresponding to the upper breaker 11a and the load adjustment request of the line corresponding to the first lower breaker 11b at the same time, the load control device 20 may first process the load adjustment request of the line corresponding to the first lower breaker 11 b. That is, the load control device 20 can reduce the amount of current in the line corresponding to the first lower breaker 11b by stopping the operation of at least one of the devices 301 to 303 based on the priority of the devices 301 to 303 connected to the first lower breaker 11 b. As a result, the amount of current in the line corresponding to the upper breaker 11a can be reduced. This can prevent the devices 304 to 306 connected to the second lower breaker 11c from unnecessarily stopping their operation. However, when the difference between the capacity of the upper level breaker 11a and the amount of current of the corresponding line is still smaller than the reference value, the load control device 20 may stop the action of at least one of the devices 301 to 306 that is operating based on the priority of the remaining devices that are operating.

Fig. 7 is a flowchart for explaining the operation of the load control device included in the monitoring and load control system according to another embodiment of the present invention.

In the embodiment shown in fig. 7, some of the actions performed by the gateway 100 may be performed by the load control device 20. That is, steps S100 to S120 in the embodiment shown in fig. 4 may be performed by the load control device 20, and in this case, the gateway 100 may perform only a transmission action of transmitting the thermal imaging data received from the temperature sensing device 13 and the current amount information acquired from the measuring instruments 12a to 12c to the load control device 20. In addition, in this case, the thermal imaging analysis information 121 and the breaker temperature capacity information 122 stored in the memory 120 of the gateway 100 may be stored in the memory 22 of the load control device 20.

Referring to fig. 7, the load control device 20 may receive current amount information of a line corresponding to each of the circuit breakers 11a to 11c and thermal imaging data acquired by the temperature sensing device 13 from the gateway 100 (S200).

The load control device 20 may sense the temperature of each of the circuit breakers 11a to 11c based on the received thermal imaging data (S210), and acquire capacity information of each of the circuit breakers 11a to 11c based on the sensed temperature (S220).

The load control device 20 may detect a breaker corresponding to a line, of which the amount of current is to be adjusted, based on the acquired capacity information and the amount of current information (S230).

Steps S210 to S230 may be substantially the same as steps S100 to S120 of fig. 4, except that the change of the execution subject from the gateway 100 to the load control device 20 is performed.

The load control device 20 may stop the operation of at least one device based on the priority information and the power consumption information of the device connected to the detected breaker (S240).

According to the embodiments of the present invention, the monitoring and load control system adjusts the load based on the capacity varying with the temperature of the circuit breaker, so that it is possible to prevent an unexpected line disconnection in advance.

According to the embodiment of the present invention, the monitoring and load control system can effectively prevent unexpected operation stop of the equipment having higher importance or having to continue to operate by stopping only the operation of a part of the equipment according to the priority.

The above description is merely an example of the technical idea of the present invention, and those skilled in the art will be able to make various modifications and variations within the scope not departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present specification are not intended to limit the technical idea of the present invention but to be used for explanation, and the scope of the technical idea of the present invention is not limited by the embodiments.

The scope of the invention should be construed by the claims that follow, and all technical ideas within the scope of equivalents thereof should be construed to be included in the scope of the claims of the present invention.