KR101601141B1 - Internet of things system using Platform - Google Patents

Abstract

The present invention relates to an Internet of things system using a platform, more particularly relates to an Internet of things system using a platform capable of reducing unnecessary power consumption by cutting off a power of an electric device not used in a situation such as the going out or sleeping time, etc. according to user′s environment setting using a power measurement unit for measuring the power, a power output unit for controlling output of the power, a central control unit, etc., through an eco-friendly and economic smart plug which can prevent duplicate development through an open communication protocol, an open API, management of members, etc. and support more easily Internet of things. The Internet of things system can conveniently control Internet of things with a smartphone (mobile terminal) by connecting communication between things through a PLC communication using a power line fundamentally installed in a building through an Internet of things communication unit. The Internet of things system comprises: an Internet of things device including devices usable the Internet of things; and a control box for allowing communication between the Internet of things devices according to a communication protocol, and discriminating usage allowance and managing a use history by managing members who use an open API through control of encryption and decoding.

Description

Background of the Invention [0002]

More particularly, the present invention relates to an object Internet system using a platform, which prevents duplication of development through an open communication protocol, a public API, and member management, Through a smart plug that is economical and economical, the power measurement unit that measures the power, the power output unit that controls the power output, and the central control unit, It is possible to reduce unnecessary electric power consumption by turning off the electric power of the electric devices and connect the inter-object communication through the object Internet communication unit to the PLC communication using the electric power line installed in the building to conveniently use the smart phone (mobile terminal) The Internet, and the Internet.

Recently, in order to reduce the energy consumption of electric equipment used in the home, it is necessary to analyze the electric power charge system in relation to the electric power equipment to distribute the load, and to control the home energy management system The system is a trend of new products and systems with high expectations for energy conservation and global warming countermeasures in the livelihood sector.

In addition, IoT communication (object Internet communication) refers to a form evolved from USN (Ubiquitous Sensor Network) and M2M (Machine to Machine). In other words, when M2M is the communication device (end-device) and communication with people was the main purpose, IoT is a communication that makes the object, such as phone, book, thermometer, etc. communicate with people by expanding the scope of things. In this IoT technology, there exist sensing technology, communication technology, service technology, etc., so that information of all objects is constructed as a network like an internet network, and various services can be provided through the acquired information.

This IoT is a concept of object space network that forms intelligent relationships such as sensing, networking, and information processing in cooperation with human, object, and service in three distributed environment elements without human intervention. The main components of the IoT include not only communication equipment in a wired / wireless network, but also people, vehicles, bridges, and various electric devices. The IoT extends the concept of M2M, which enables intelligent communication between people, objects, objects and objects, using the network, to interact with all information of the real world as well as the virtual world as well as objects.

Here, the IoT device represents general objects (e.g., TV, mobile phone, refrigerator, vacuum cleaner, washing machine, gas range, electric heater, etc.) to which IoT is applied.

Meanwhile, Korean Patent Registration No. 0312774 discloses a system and method for monitoring a meter information using a power line, which is a system for monitoring meter information at a remote place by transmitting meter information to a remote place through a power line, have.

Korean Patent No. 0609498 is a standby power control device which monitors the status of peripheral devices and main body connected to a computer to individually, partially, or collectively control the power of the peripheral devices and the main body, There is a problem that it is impossible to measure the detailed power consumption information.

Korean Patent No. 0918794 A green outlet for shutting off standby power is a standby power cut-off green outlet for detecting a standby current and blocking a standby current when it is determined that the standby power is below a predetermined standby current value, There is no function that can be selected and controlled.

Also, if you look at the current home network system, it is difficult for housewives or ordinary people to use it, and the accessibility is low because of high price. In order to monitor the power consumption to build a home network, And smart plugs currently being sold are all inefficient because of the use of Wi-Fi, and the number of devices that can be connected is limited.

In addition, existing devices have had to define their own security and communication methods in order to support the Internet of things and to use them closedly.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to prevent redundant development through an open communication protocol, a public API and member management, It communicates with the eco-plug interface by using the communication so that the user accesses the flag from anywhere to check and control the electric power consumption of the electric appliance connected to the plug, and provides a multi-tab or plug type product, The home network system can be easily used. By using the real-time power information, it is possible to automatically turn on or off the electric appliance in the plug at a time or under certain conditions, By preventing waste, reducing power consumption So to provide a system using the Internet of Things platform.

According to an aspect of the present invention, there is provided an object Internet device including a plurality of devices capable of object Internet; And a control box for allowing the communication between each object internet device to be performed according to a communication protocol and for managing a member using the public API through encryption and decryption control to determine whether to use the API and manage the use history.

The object of the present invention is to provide an object Internet system using a platform in which a smart plug and a mobile terminal are connected to a network including a router. The object Internet system measures electric power supplied to an electric device through a smart plug, A power measuring unit for transmitting a current power supply status by transmitting the power; A DC power conversion unit converting an AC power supplied from the power line to a DC power; An object internet communication unit connected to the direct current power conversion unit and having a protocol so as to enable power line communication (PLC) between a plurality of electric devices by receiving direct current power; A power status display unit for displaying a current power supply status from the power measurement unit by using an LED lamp; A frequency processing controller for selecting an optimal communication frequency through PLC frequency search and frequency spectrum analysis; An encryption module for encrypting and decrypting an encryption algorithm according to a control signal; A power output unit for outputting power supplied from the power measuring unit; A short range communication interface which receives power from the DC power conversion unit and maintains short-range communication with the router to exchange the corresponding power information; And a central control unit which performs communication between each electric device according to the protocol and performs PLC frequency search, frequency spectrum analysis spread control, member management and encryption / decryption control accordingly.

The frequency processing control section of the present invention repeats the acknowledgment communication to all communication areas and sends a response (ACK) message from the short-range communication interface to determine which area among all the communication areas The master smart plug gives commands to all slave smart plugs to perform the signal strength measurement on the basis of the signal of the communication line of the slave smart plug in order to find the communication frequency with the least noise, Is used as the communication frequency.

The mobile terminal of the present invention includes a sleep time display unit for displaying a sleep time display unit for displaying a sleep time according to a sleep time and a sleep time display unit for displaying a sleep time for each sleeping time through the power measuring unit.

The mobile terminal of the present invention includes a current status display unit for displaying a current status of the measured power of the electric device through the power measurement unit, an electric device on / off alarm selection unit for indicating an on / off status of the electric device, And a power usage limiting function setting unit configured to limit a power usage amount according to a progressive power through the power output unit.

The mobile terminal of the present invention is characterized in that a customized design can be performed by displaying a current / anticipated usage amount display unit and a future usage prediction amount that display the current usage amount of the electric device through the power measurement unit and the central control unit.

In the present invention as described above, if the connection of the conventional power saving plug is increased through the wireless communication technology, the wireless bandwidth becomes saturated and the communication speed becomes slow or the wireless Internet can not be used. However, It is possible to use and manage Internet without restrictions.

In addition, the present invention conveniently manages and utilizes various information about energy such as energy consumption of a consumer, plan plan, and estimated charge using a smart plug of a simple configuration and a smart phone connected to a network, thereby preventing unnecessary power consumption, .

Also, according to the present invention, it is possible to control all electrical appliances in a building only when a registered normal member is logged in through a subscription menu, thereby enhancing the security and reliability of the present invention.

In addition, the present invention recognizes customized information on energy such as consumer's energy consumption, rate plan, and estimated charge as a consumer demand response technology, and helps decision-making to voluntarily participate in an energy saving program.

Also, the present invention can prevent duplication of development through open communication protocol, open API and member management, and can more easily support the Internet of things.

FIGS. 1A and 1B are views showing the overall configuration of an object Internet system using a platform according to the present invention.
FIG. 2 is a view showing types and appearance of smart plugs of the object Internet system using the platform according to the present invention.
FIG. 3 is a diagram illustrating the overall configuration of a object Internet system using a platform according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating login and schedule functions among the execution screens of the smart plug application of the mobile terminal of the object Internet system using the platform according to the embodiment of the present invention.
FIG. 5 is a view showing a current / anticipated usage amount display function and an electric device on / off alarm function among execution screens of a smart plug application of a mobile terminal in a matter Internet system using a platform according to an embodiment of the present invention.
FIG. 6 is a view showing an alarm view function and a multi-tap connection electric device viewing and adding function among the execution screens of the smart plug application of the mobile terminal in the object Internet system using the platform according to the embodiment of the present invention.
FIG. 7 is a diagram illustrating a current / anticipated usage graph function and a power monitor function among execution screens of a smart plug application of a mobile terminal in a matter Internet system using a platform according to an embodiment of the present invention.
8 is a diagram showing a customized power designing function among the execution screens of the Smart Plug application of the mobile terminal of the object Internet system using the platform according to the embodiment of the present invention.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. It should be noted that the same or similar components in each of the drawings may be denoted by the same reference numerals. Further, detailed descriptions of well-known functions and configurations that may be unnecessarily obscured by the gist of the present invention are omitted.

1A is a block diagram illustrating an overall configuration of an Internet object system using a platform according to an exemplary embodiment of the present invention. The Internet object system using a platform includes a plurality of object Internet devices 1 and 1 ' , 1 ", 4 "), and an API part including a routine and an interface protocol, which are parts of a schedule code for performing specific operations according to an open API (application program interface) standard, A control box 2, 2 ', 2 "for managing the use permission and the use history by managing members using the public API through encryption and decryption, and a PC 3 , 3 ') and the like.

Here, "Platform" refers to a system on which programs can be executed. An API is an interface that allows you to control the functions provided by the Platform. Therefore, the platform according to the present invention can be publicized as an API and can be seen and learned by anyone.

In other words, existing devices define their own security and communication methods in order to support the Internet of things, solve the problems that had to be used closedly, prevent duplication of development, and more easily support the Internet of things.

In the case of authentication of the platform, the control box 2, 2 ', 2 "according to the present invention is a Platform using the disclosed API, and it is preferable that the application of the API of the third party is promoted and allowed, and all of them are blocked.

Because putting unauthorized devices on the object network can be very dangerous, and you need to be certified that these devices are not doing safe and illegal work. To do this, the platform needs to be securely used and authenticated as a trusted device, so authentication can be performed through a certification authority, and the Control Box only allows communication with authorized devices.

On the other hand, all the devices supported by the API provided by the Platform can be controlled. For example, there are power control or current status. This API depends on whether the control box is supported or not. The Control Box can perform API updates via a trusted server. The API defines the standard of the API in consideration of the requirements of the device maker and the universality among other devices.

The smart plugs 410 and 420 of FIG. 1B are manufactured by incorporating a PLC power communication unit and a short-range communication unit in an internal space portion of a general plug structure.

As an embodiment of the present invention, if the smart plugs 410 and 420 are connected to a power plug and then connected to a router 220 that is conventionally used by wire or wireless, Management is possible.

FIG. 2 is a view showing the kind and appearance of the smart plugs 410 and 420 of the object Internet system using the platform according to the present invention. In the housing, which forms a certain space, A portion L is formed.

3, the smart plugs 410 and 420 include a power measuring unit 310, a DC power converting unit 320, an object internet communication unit 330, And a central processing unit 355 including a power status display unit 340, a frequency processing control unit 350, an encryption module 360, a power output unit 370, a local communication interface 210, Respectively.

The power measuring unit 310 at the left end of FIG. 3 is connected to the power line of the building, measures the electric power supplied to each electric device, and transmits the measured electric power to the power state indicating unit 340 to display the current electric power supply / If there is a person in the house or if there is no person, the power consumption such as sleeping time is measured to enable customized design.

3 is a module for converting the AC power supplied from the power line to DC power. The object Internet communication unit 330 is connected to the DC power converting unit and receives DC power from the DC power converting unit 320, A protocol is set up to enable power line communication (PLC) between electrical devices.

The power status display unit 340 of FIG. 3 is a module electrically connected to an LED lamp for informing the current power supply status from the power measurement unit 310. For example, the power measurement unit 310 may transmit power consumption It can be replaced with a display window to display the current usage amount and the power usage fee in real time.

The frequency processing controller 350 connected to the short-range communication interface 210 and the power output unit 370 of FIG. 3 is a module for selecting an optimal communication frequency through PLC frequency search and frequency spectrum analysis spreading. (420), and sends a response (ACK) message according to a certain protocol at the short-range communication interface (210), thereby determining which of the communication areas has the largest number of communication areas It is necessary to analyze whether the electric appliance is plugged into the smart plugs 410 and 420 and store the analyzed data in the database or the master smart plug as a reference may search for the lowest noise frequency, Give all the slaves a command to measure the strength of the signal by their frequency, And it controls the frequency-signal strength of all the slave smart plug is a master smart plug is frequency-dependent signal to the aggregate to use the optimal frequency to the communication frequency.

Here, the strength measurement of the signal is to adjust the communication strength so that the other party measures the signal with a binary search algorithm through no response or no response.

Therefore, the communication speed can be slowed due to the saturation of the radio band, and the PLC communication can be performed quickly between the respective electric devices through the optimum frequency even when the wireless Internet is not available.

The encryption module 360 at the right end of FIG. 3 is a module for computing and encrypting and decrypting an encryption algorithm according to a control signal.

The power output unit 370 at the right end of FIG. 3 is a module for outputting the power supplied from the power measuring unit 310. In order to reduce the energy consumption amount according to the access right, ON / OFF control function of the power unit of the electric device.

The short-range communication interface 210 shown in FIG. 3 is a module that receives power from the DC power conversion unit and exchanges the corresponding power information by maintaining short-range communication with the router. The short-range communication interface 210 includes a mobile terminal 500, the smart plugs 410, 420 and the mobile terminal 500 are exchanged and confirmed so that information such as power consumption is displayed or alarmed to the user.

The central control unit 355 of FIG. 3 is a module that performs communication between each electric device according to the above-mentioned protocol, performs PLC frequency search, frequency spectrum analysis spread control, encryption and decryption control, It is possible to provide various power control services by being connected to the application of the mobile terminal 500 having the expected usage amount display and the monthly usage amount display function.

4 (a), when the smart plug application of the mobile terminal 500 connected to the smart plugs 410 and 420 according to the present invention is executed, the ID input window 11, the password input window 12, In order to make security and mutual authentication a top priority, authentication may be performed through an external certification authority.

In addition, the reliability of the present invention can be improved by controlling all the electrical appliances in the building through the encryption module 360 or the like only when a normal member subscribed through the subscribe menu 14 pushes the login menu 13.

As shown in Fig. 4 (b), the schedule is displayed for one week, so that a specific day of the week can be selected, and the outgoing time and sleeping time can be set through the outgoing time display unit 15 and the sleeping time display unit 16. [ This can be used in conjunction with a custom design to precisely analyze the power consumption at that time.

As shown in FIGS. 5 (a) and 5 (b), a current state display section 21 for displaying the current state of the power measured through the power measuring section 310, an individual schedule An electric appliance on / off alarm selection unit 23 for notifying an on / off state of the on / off state through a display unit 22 and a power output unit 370, and an estimated progressive tax application result selection unit (24), a power usage limiting function setting unit (25) capable of limiting the power consumption according to the progressive tax, and an alarm function setting unit (26) for using excess power for excess power alarm.

Specifically, the current status display unit 21 is a window for displaying all smart plugs 410 and 420 according to the present invention using PLC communication, receiving data, and receiving a transmission. Also, the current and voltage flowing through the power measuring unit 310 may be measured and displayed.

For example, the power measuring unit 310 may measure and display power in real time through an electromagnetic induction type current sensor and a voltage sensor.

Also, the power output unit 370 of the specific smart plugs 410 and 420 can be controlled through the PLC communication so that the corresponding electric devices can be turned on or off.

The present invention enables an electric device connected to a plug to be turned on or off through an electronic signal coming from a control unit through an electronic switch (relay), for example.

As shown in FIG. 6, when the electric device is turned on and off at a certain time, the list of the electric devices and the information about the work and going out are grasped through the electric power measuring unit 310 and displayed to the user through the alarm view window 31 And calculates the amount of power output of the power output unit 370 through the central control unit 355 to divide the power output of the power output unit 370 into a 4-tap display unit 32 and a 2-tap display unit 33, You may.

As shown in FIG. 7A, a corresponding electric device display unit 41 for measuring a current and a voltage flowing through the electric power measuring unit 310 and the like and displaying the electric device, an on / off state of the electric device, A present / expected usage amount display part 43 for displaying the usage amount of the electric device through the electric device current state display part 42, the electric power measurement part 310 and the central control part 355, An individual schedule display unit 44 for displaying the information on the time of going out, the sleeping time off and on, and a monthly usage display unit 45 for displaying the above usage amount integrated on a monthly basis.

As shown in FIG. 7 (b), when the power monitor display unit 46 displaying the annual power consumption amount, the sleep time power, the monthly total used power, the estimated power A power monitor display description part 47 is displayed, which indicates the usage amount, expected power usage fee, and the like.

8, a customized design window 51, a customized design graph window 52, customized design graph windows 53 and 54, and an apply button (not shown) 55) can be displayed, for example, in the customized design graph windows 53 and 54, "No TV, computer, etc. have been operated for 23:00 to 6:00 hours for one month. There is no change in the use of electrical appliances from 9:00 to 14:00 on Monday, Tuesday, Wednesday, Thursday, Friday or Saturday, You can save 3500 Won per month if you use outgoing savings. " Message may appear.

The reason why such a customized service can be performed is that power scheduling is possible through the power measuring unit 310 and the local communication interface according to the present invention. When a user approaches the local communication interface through the mobile terminal 500, Information on all smart plugs 410 and 420 is displayed and the amount of power being used and the amount of power used in the past are measured and displayed through the power measuring unit 310. When the user views the smart plugs 410 and 420 at a glance, It is possible to inquire the power consumption information of the electric appliance connected to the electric appliance.

  Also, the power consumption information can be confirmed by accessing the local communication interface through the Internet, and a desired time zone, a desired day of the week, and the like can be set and turned on / off via the power output unit 370.

The present invention predicts the power to be consumed next month based on the power usage data of the accumulated individual electric devices through the central control unit 355 or the like. Then, the central control unit 355 learns the pattern of the user. Report unnecessary parts of the power to the user, and advise the user of a power schedule that can save power.

In the present invention described above, even if the communication speed is slowed due to the saturation of the wireless band through the object internet communication unit 330 in which the protocol is set so that the PLC can be used, or even when the wireless Internet can not be used, It is possible to use it without restrictions.

In addition, the present invention provides smart plugs 410 and 420 of a simple configuration through a power measuring unit 310 for displaying and storing current power supply and demand status, various information on energy such as energy consumption of a customer, And can be conveniently managed and used.

In addition, the present invention enables control of all electrical products in a building only when a normal member subscribed through a membership subscription menu is logged in through an encryption module 360 that computes an encryption algorithm and a central control unit 355 The security and reliability of the present invention can be enhanced.

In addition, as a consumer demand reaction technology, the present invention recognizes various information on energy such as energy consumption amount of a customer, a fee plan, an expected charge, etc., and controls the power output unit 370 to participate in an energy saving program voluntarily Unnecessary power waste can be prevented.

Further, the present invention prevents overlapping development of the control boxes 2, 2 ', 2 " through the open communication protocol, open API and member management, and can more easily support the object Internet.

1, 1 ', 1˝, 4˝: Object Internet Device
2, 2 ', 2˝: Control box
3, 3 ': PC
210: Local area communication interface
220: Router
310: Power measurement unit
320: DC power conversion section
330: Internet Communications Department
340: Power status indicator
350: Frequency processing controller
355:
360: Encryption module
370: Power output section
410, 420: Smart plug

Claims (7)

An object Internet device including a plurality of devices capable of object internet;
An API unit including a routine and an interface protocol which are parts of a fixed code for performing a specific operation for communication between the object Internet devices according to an open API (application program interface) standard; And
A control box for allowing a communication between each object Internet device to be performed according to a routine and a communication protocol, managing a member using the public API through encryption and decryption control to determine whether to use the API and managing the use history,
The control box includes:
A power measuring unit connected to a power line of the building to measure a power supplied to the electric device through the smart plug and transmit the measured power to the power status display unit to store the current power supply status;
A DC power conversion unit converting an AC power supplied from the power line to a DC power;
An object internet communication unit connected to the direct current power conversion unit and having a protocol such that a power line communication (PLC) between a plurality of electric devices is enabled by receiving direct current power;
A power status display unit for displaying a current power supply status from the power measurement unit by using an LED lamp;
A frequency processing controller for selecting an optimal communication frequency through PLC frequency search and frequency spectrum analysis;
An encryption module for computing and encrypting and decrypting an encryption algorithm in member information and communication;
A power output unit for outputting power supplied from the power measuring unit;
A short range communication interface which receives power from the DC power conversion unit and maintains short-range communication with the router to exchange the corresponding power information; And
And a central control unit for communicating between the electric devices according to the protocol and performing a PLC frequency search, a frequency spectrum analysis and spread control, a member management, a usage history management, and an encryption and decryption control accordingly. Useful Internet System. delete The method according to claim 1,
The frequency-
The master smart plug transmits the acknowledgment communication to all of the slave communication areas and repeats the sending of the acknowledgment (ACK) message from the local communication interface to analyze the communication area. To find the communication noise with the least noise, Wherein the smart plug is provided with a command for performing signal strength measurement on the basis of a signal of its own communication line and controlling the frequency-dependent signal to use the optimum frequency as a communication frequency. The method of claim 3,
Wherein the strength measurement of the signal adjusts the strength of transmission of the communication so that the counterpart measures the signal by a binary search algorithm through no response or no response. The method according to claim 1,
And a mobile terminal including a sleep time display unit for displaying a sleep time display unit for displaying the power consumption amount for each sleeping time through the power measuring unit and a sleep time display unit for displaying the power consumption for each sleeping time. 6. The method of claim 5,
The mobile terminal includes a current status display unit for displaying a current status of the measured power of the electric device through the power measurement unit, an electric device on / off alarm selection unit for indicating on / off status of the electric device, And a power usage limiting function setting unit configured to limit a power usage amount according to a progressive tax through the use of the platform. 6. The method of claim 5,
Wherein the mobile terminal displays a current / anticipated amount of use indicator and a predicted future use amount indicating a current usage amount of the electric device through the power measurement unit and the central control unit, thereby enabling a customized design.

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