WO2019066152A1

WO2019066152A1 - Network relay device and method of energy management iot and cloud-based smart home platform

Info

Publication number: WO2019066152A1
Application number: PCT/KR2018/000511
Authority: WO
Inventors: 현재호
Original assignee: (주)코콤
Priority date: 2017-09-29
Filing date: 2018-01-11
Publication date: 2019-04-04
Also published as: KR20190038712A

Abstract

The present invention relates to a network relay device and method of an energy management IoT and cloud-based smart home platform. Provided in one embodiment of the present invention is a network relay device of an energy management IoT and cloud-based smart home platform, the device: comprising a smart home and a cloud server connected through a communication network in order to reduce standby power; and performing a relay function for an automatic network configuration by being embedded in an electrical or electronic product within the smart home or being mounted on the outside thereof in a modular form.

Description

Energy management IOT and network relay device and method of cloud-based smart home platform

The present invention relates to an energy management IoT and a network relay device and method of a cloud-based smart home platform.

Recently, in order to reduce the standby power of household appliances according to the demand for energy saving, researches are actively conducted. In this research area, interest in energy management and cloud-based home platform is increasing.

On the other hand, a business that supplies electricity to a customer installs a meter to measure electricity consumption, and charges the user according to the metered value.

However, if there are a large number of people who charge usage fees, the way the meter checker checks the meter and charges the usage fee becomes inadequate. To solve these problems, a remote meter reading system has been proposed.

This remote meter reading system is evolving from the remote meter reading system via wire to the remote meter reading system via wireless.

For this purpose, there is a need for a configuration that is installed in a power input portion of a device or an apparatus that uses electricity such as a household appliance to detect the amount of electricity used and enable service follow-up according to the detection result.

Therefore, a device having a self-relay function is needed to configure the network between the electric devices used in the customer so that the electric power of the customer can be measured by wired / wireless communication in the watt hour meter installed at the water receiving point of the customer using the remote meter reading function.

The present invention is directed to an energy management IoT in which each node performs a relay function by itself in a smart home connected to a cloud server constructed for reducing standby power, and a network relay device and method of a cloud-based smart home platform .

According to an embodiment of the present invention, a smart home and an open cloud server connected through a communication network for reducing standby power are provided, and the smart home can be installed in an electric or electronic product in the smart home, And a network relay device of an energy management IoT and a cloud-based smart home platform.

The network relay device may further include: a main processor unit for performing a network relay method for automatic network configuration in the smart home; A first power measuring unit for measuring an AC voltage; A second power source measuring unit for measuring an alternating current; And a communication device for transmitting the result of the measurement of the AC voltage or the AC current through the network.

In addition, the main processor unit may include a step of determining the number of all nodes, a step of automatically selecting a representative node, a step of detecting a change of node information, a step of automatically constructing a table database by calculating a distance between nodes Configuring a routing information protocol table according to the node table, and determining the maximum number of nodes via the network.

In addition, the step of determining the number of all nodes proceeds automatically every time a new node is added. The ID of the added node is set to 01, and the new node, to which its ID is assigned as 01, , Or transmits a new node addition signal in the sense of readjusting the network, and all nodes can receive a new number through the answer of the remaining node.

In addition, in the step of automatically selecting the representative node, a node newly registered at the end is assumed to have ID 01, and the remaining node operates as a slave, and the representative node receives an instruction through wireless communication It can forward its contents to the remaining nodes or report the status of each node to the upper layer.

In addition, in the step of automatically configuring the table database by calculating the distance between the nodes, the representative node can examine the electric field strength of all the nodes to create the routing table.

In addition, in the step of constructing the routing information protocol table according to the node table, the closer the node is, the smaller the electric field intensity is, and the more the node can be set as the far node.

According to another embodiment of the present invention, there is provided a smart home system including a smart home and an open cloud server connected through a communication network to reduce standby power, and the smart home may be embedded in an electric or electronic product in the smart home, A method for relaying a configuration, comprising: determining a total number of nodes, automatically selecting a representative node, detecting a change in node information, automatically configuring a table database by calculating a distance between nodes, Constructing a routing information protocol table according to a node table, and determining the number of nodes via a maximum number of nodes via the network.

In the smart home connected to a cloud server configured for standby power reduction, each node can perform a relay function by itself and communicate with a node outside the established communication area.

1 is a diagram illustrating a configuration of an energy management IoT according to the present invention and a network relay apparatus and method of a cloud-based smart home platform.

2 is a diagram illustrating a connection relationship between a smart home and a cloud server.

3 and 4 are views showing a service operation structure of a cloud server.

5 is a diagram illustrating a configuration of a network relay apparatus according to an embodiment of the present invention.

6 is a diagram illustrating a method of relaying a network relay apparatus according to an embodiment of the present invention.

7 and 8 are diagrams illustrating a process of automatically proceeding each time a new node is added to grasp the quantity of all nodes.

9 is a diagram illustrating a process of automatically configuring a table database by calculating the distance between nodes.

10 is a diagram showing nodes that are distributed.

Hereinafter, the present invention will be described more specifically based on preferred embodiments of the present invention. However, the following embodiments are merely examples for helping understanding of the present invention, and thus the scope of the present invention is not limited or limited.

Energy Management to Reduce Standby Power In IoT and cloud-based smart home platforms, you can work on energy management by connecting open generations for each generation and energy management through a network.

To this end, the energy management IoT and the cloud-based smart home platform according to the present invention may include a smart home 100 and an open cloud server 200. Meanwhile, the smart phone 50 can access the smart home 100 and the open cloud server 200 via the communication network and transmit and receive data.

The smart home 100 includes a wall pad 110, an illumination 120, a power controller 130, a plurality of IoT devices 140, a home gateway 150, an access point 160, a smart outlet 170, . &Lt; / RTI >

The wall pad 110 is connected to various devices existing in the groove to constitute a home network and can control the light 120, the plurality of IoT devices 140 and the smart outlet 170 according to a user's input . The mall pad 110 may perform a home data factory service technique according to a separate setting.

The illumination unit 120 may emit light by being supplied with power under the control of the power controller 130.

The power controller 130 can receive power from an external power supply facility through the water receiving point 135. In addition, the power controller 130 can supply power to the lighting 120 and the smart outlet 170. At this time, the power controller 130 wirelessly communicates with the wall pad 110 to receive a power supply control command, and controls power supply to the light 120 and the smart outlet 170 according to the received power supply control command can do. The power controller 130 can measure power in a non-contact manner.

The plurality of IoT devices 140 are devices used in the home, and can perform wireless communication with the home gateway 150 or the wall pad 110 by using the Internet object function. The plurality of IoT devices 140 may receive a control command according to a user's input from the month pad 110 and operate according to the received control command.

The home gateway 150 performs wireless communication with a plurality of IoT devices 140 and can provide access paths for signals transmitted to and received from a plurality of IoT devices 140. [

The smart outlet 170 can monitor the power supply and manage the power consumption per household appliance.

The open cloud server 200 can operate a home data factory service 400 and a home avatar service 500 that are operated on the basis of an open smart home cloud platform 300 built on a detacher to enhance security .

For the sake of simplicity, the operating service is described here as a device component.

The open smart home cloud platform 300 collects, stores and processes data for each household based on a home cloud, transmits the analyzed results to the monthly pad 110, ) And home avatar message protocol can be defined. Also, the open smart home cloud platform 300 can process large amount of data through resource monitoring for each home container.

2, the open smart home cloud platform 300 transmits home data, such as power consumption transmitted from the wall pad 110 in the smart home 100, to a message broker (not shown) of the home data factory service 400 210). In addition, the open smart home cloud platform 300 can collect generation-specific data through the message broker 210. [ In addition, the open smart home cloud platform 300 may store the collected data in the database 220. In addition, the open smart home cloud platform 300 may analyze the collected and stored data through the analysis server 230 and send the analyzed analysis results to the monthly pad 110.

2 to 4, the home data factory service 400 can collect, store and analyze data between the wall pad 110 and the container in the open cloud server 200, An analysis server 230 may be included. At this time, the message broker 210 may be constructed as a docker container.

Here, the message protocol for transmitting and receiving data between the wall pad 110 of the smart home 100 or the smartphone 50 and the avatar container may utilize a Message Queue Telemetry Transport (MQTT).

The home data factory service 400 is a reliable system considered as a standard among various open source technologies. It is capable of both TCP and UDP communication, can adjust QoS according to system requirements, The subscription is made through an identifier called a topic, and the topics are classified hierarchically, and various publishing / subscription layers can be configured for each user, gateway, and message type.

In addition, real-time data communication between the wall pad 110 and the home cloud platform collector and analysis node can be performed centering on the publish / subscribe technology using the MQTT.

Hereinafter, a process of executing the message broker 210 and the analysis server 230 of the home data factory service 400 will be described. The message broker 210 and the analysis server 230, 210), and execute an analysis module for analyzing the average power use status for each generation.

In this case, the analysis module performs analysis and transmission of analysis results after the analysis, and performs a comparative analysis on how much power is used for each household by using the power data transmitted from the monthly pad 110 in detail, And the power data of the household can be transmitted to the wall pad 110 and the avatar container.

The home avatar service 500 can create and delete home avatars by households and monitor the resource usage by each container to enable load balancing and service migration through service expansion in case of data explosion by household.

Hereinafter, an energy management IoT according to an embodiment of the present invention and a network relay device of a cloud-based smart home platform will be described.

Referring to FIG. 5, an energy management IoT and a network relay device of a cloud-based smart home platform according to an embodiment of the present invention may be embedded in an electric or electronic product in the smart home 100, So that the electric or electronic product can be operated by the IoT device 140.

Here, the network relay device includes a main processor unit 610 having an algorithm for constructing an efficient Home Area Network (HAN), a first power measurement unit 620 for measuring an AC voltage, A second power measuring unit 630 for measuring the AC current or the AC current, and a communication device 640 for transmitting the measurement result of the AC voltage or AC current through the HAN.

The main processor unit 610 may perform a network relay method for automatic network configuration in the smart home 100. [

Referring to FIG. 6, a network relay method for automatically configuring a network includes a step S10 of checking the number of all devices (hereinafter referred to as nodes), a step S20 of automatically selecting a representative node, (Step S30), automatically constructing a table database by calculating the distance between nodes (step S40), constructing a routing information protocol table according to the node table (step S50), determining the number of maximum- Step S60.

First, step S10 of understanding the number of all nodes can be automatically performed every time a new node is added. At this time, the ID of the node to be added may be unconditionally set to 01. A new node assigned its own ID of 01 transmits a new node addition signal (packet) in the sense of informing its existence or readjusting the network, and all nodes respond to the new node addition signal Can receive. In this process, the total number of nodes can be grasped.

In more detail, referring to FIG. 7, the transmitting side of the new node addition signal performs power-on (S110) and performs wireless communication with the smartphone, for example, Bluetooth pairing (S120) (S130), and can transmit a new node addition signal (S140). If a response is received (S150), a check is made to see if the wait count is exceeded (S160). If there is a response, a new node is assigned a one-way number (S170) . If there is no response, it is confirmed whether the waiting time is exceeded (S190). If there is a response, a re-acknowledgment (ReAck) is transmitted (S200) to wait for reception of the next node (S210).

8, the receiving side of the new node addition signal receives a new node addition signal (S310) in a reception waiting state (S310), generates a chaos random number (S330) (S340) and transmits a new node addition response signal (S350). Thereafter, the node waits for a re-response (S360). If there is no re-response, it is checked whether the waiting time is exceeded (S370). If there is a re-response, the received node identification number may be stored (S380).

At this time, the packet to be used can be set as shown in Table 1 below. The response (ack) represented in Figs. 7 and 8 is New_insert_a, and the re-response (ReAck) is New_Insert_a1.

STX

FID

SID

DID (1)

DID (2)

DID (3)

DID (4)

NEST

Payload

Device

Device_N

Rx_Level

Rev

Sum

ETX

New Insert

0x02

FID

0x01

0

*

0x01

*

sum

0x03

New Insert_a

0x02

FID

0

0x01

0

MAC

*

0x01

*

sum

0x03

New Insert_a1

0x02

FID

0x01

0x02

0

MAC

*

0x01

*

sum

0x03

Because of the chaos random number here, all other nodes will send ack in order, and DID (1)

Nodes that have not been granted a DID (that have not received a response) will come in sequence by chaos

In other words, node 1 that hosts it will assign a number as a1 when ack arrives, so all nodes in the vicinity will be given a number after a certain time

In this protocol, different and irregular delay times between nodes are very important. A chaotic function can be used for this purpose. Using a chaos function, we can get a random value that minimizes redundancy.

In step S20 of automatically selecting a representative node, a node newly registered at the end has ID 01, and can perform a role as a master. At this time, the remaining nodes operate as slaves. The representative node can receive commands through wireless communication and deliver the contents to the remaining nodes or report the status of each node to the upper layer.

In the step S30 of detecting the change of the node information, the increase of the node acts in the same manner as the new node addition algorithm S20. In the case of reduction, decrease is recognized due to communication disconnection with the representative node. In this case, the representative node modifies the internal routing table, and the reduced node continuously tries to communicate in a separate cycle, The restoration process can be performed.

In the step S40 of automatically constructing the table database by calculating the distance between the nodes, in the case of wireless communication, there may be a change in the electric field intensity depending on the distance. When the distance is long, There are many cases. In case that the electric field strength is low due to the distance or the wall, the compensation method can be applied.

Specifically, in the present invention, there is a reception level (Rx_Level) in the packet field in Table 1 in order to adjust the output of the transmission side in conjunction with the electric field intensity. This is because when receiving the acknowledgment (Ack) By indicating the electric field strength, the other party receiving this signal can confirm the reception level (Rx_Level) and increase the output in the wireless communication, thereby adjusting the electric field intensity upward.

Hereinafter, referring to FIG. 9, a description will be given of a method of initially investigating the field strength of all nodes in order to form a routing table by the representative node.

First, an index is set (S410), an ID is set as an index (S420), test data is transmitted (S430), and whether or not the data is received can be confirmed (S440). If the test data is not received, it is checked whether the waiting time is exceeded (S450). Alternatively, if test data is received, the reception level may be stored and a routing table may be configured (S460). Thereafter, the index is incremented (S470), and it is confirmed whether the index has reached the maximum value (S480), and the index can be terminated upon reaching the maximum value.

In the step S50 of constructing the routing information protocol table according to the node table, if the nodes are distributed and arranged in the form of FIG. 10, the method according to FIG. Table 2 shows the variation depending on the distance when the electric field intensity is 1 to 10. Here, the larger the electric field intensity value is, the closer the node is, and the smaller the electric field strength value (closer to 0), the more distant the node can be set.

		RxRx
		1One	22	33	44	55	66
TxTx	1One	**	22	88	66	77	55
	22	22	**	22	1One	44	55
	33	88	22	**	77	55	55
	44	66	1One	77	**	44	22
	55	77	44	55	44	**	77
	66	55	55	55	22	77	**

In the step S60 of determining the maximum number of nodes via the relay node, it is possible to request a relay by calculating a node at an intermediate position in the case of a distance at which stability is likely to be considered based on Table 2. At this time, the number of NEST items in Table 1 can be increased. That is, NEST is 1 for the first data to be transmitted, and 1 is added to the NEST value for the relay node. As a result, the receiving side can know how many times it has been received. This NEST operation can fundamentally prevent a ping pong phenomenon or a flooding phenomenon caused by data congestion when a relay is performed through a neighbor node.

All the nodes can embed a DLMS (Device Language Message Specification) protocol and use the DLMS according to the direction of the representative node. However, in general, the representative node transmits to the HAN and the representative node performs wireless communication using the DLMS protocol .

The present invention does not separately provide a repeater for communication with a node (device) existing in a network other than the communication area of the network constituted by the HAN. That is, each device can perform a relay function by itself for communication with a neighboring device. For this function, a packet having n DID addresses as shown in Table 1 can be configured in the present invention.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

Claims

In energy management IoT and cloud-based smart home platforms, including smart home and open cloud servers connected via a communication network to reduce standby power,

Wherein said smart home platform is embedded in an electric or electronic product in the smart home or installed in a module form on the outside to perform a relay function for an automatic network configuration, and a network relay device of an energy management IoT and a cloud based smart home platform.
The method according to claim 1,

The network relay apparatus comprising:

A main processor unit for performing a network relay method for automatic network configuration in the smart home;

A first power measuring unit for measuring an AC voltage;

A second power source measuring unit for measuring an alternating current; And

And a communication device for communicating the measurement result of the AC voltage or the AC current through the network, the network management device of the energy management IoT and the cloud-based smart home platform.
3. The method of claim 2,

The main processor unit,

Determining a number of all nodes, automatically selecting a representative node, detecting a change of node information, automatically configuring a table database by calculating the distance between nodes, routing information protocol Comprising the steps of: configuring a table, and determining the number of nodes via a maximum. The network relay device of claim 1, wherein the energy management IoT and the cloud-based smart home platform are implemented.
The method of claim 3,

The step of recognizing the total number of nodes proceeds automatically every time a new node is added, the node to be added is set to 01, and a new node assigned with its ID of 01 is informed of its existence Wherein the nodes are assigned a new number by transmitting a new node addition signal in the sense of re-setting the meaning or network, and responding to the remaining nodes through the responses of the remaining nodes, to the network relay device of the smart home platform based on the energy management IoT and the cloud.
The method of claim 3,

In the step of automatically selecting the representative node, a node newly registered at the end has ID 01, performs a representative role, the remaining node operates as a slave, the representative node receives an instruction through wireless communication, To the remaining nodes, or reports the status of each node to the upper layer. The network relay device of the smart home platform based on the energy management IoT and the cloud.
The method of claim 3,

In the step of automatically configuring the table database by calculating the distance between the nodes, the representative node examines the electric field strength of the entire node in order to make the routing table, and performs the network management of the energy management IoT and the cloud- Device.
The method of claim 3,

Wherein the step of configuring the routing information protocol table according to the node table sets the node as a closer node as the electric field intensity value becomes larger and the remote node as the electric field intensity becomes smaller.
A smart home connected through a communication network and an open cloud server for reducing standby power,

A relaying method for an automatic network configuration, which is embedded in an electric or electronic product in the smart home or installed in a modular fashion on the outside,

Determining a number of all nodes, automatically selecting a representative node, detecting a change of node information, automatically configuring a table database by calculating the distance between nodes, routing information protocol Comprising the steps of: configuring a table, determining the number of nodes via a maximum number of nodes via the network.
9. The method of claim 8,

The step of recognizing the total number of nodes proceeds automatically every time a new node is added, the node to be added is set to 01, and a new node assigned with its ID of 01 is informed of its existence Wherein the nodes are assigned new numbers by transmitting a new node addition signal in the sense of re-setting the meaning or network, and responding to the remaining nodes by receiving a new number.
9. The method of claim 8,

In the step of automatically selecting the representative node, a node newly registered at the end has ID 01, performs a representative role, the remaining node operates as a slave, the representative node receives an instruction through wireless communication, To the remaining nodes, or reports the status of each node to the upper layer. The network relay method of the smart home platform based on the energy management IoT and the cloud.
9. The method of claim 8,

In the step of automatically configuring the table database by calculating the distance between the nodes, the representative node examines the electric field strength of the entire node in order to make the routing table, and performs the network management of the energy management IoT and the cloud- Way.
9. The method of claim 8,

Wherein the step of configuring the routing information protocol table according to the node table sets the remote node as a node closer to a larger electric field intensity value and to a remote node as the electric field intensity becomes smaller.