지능형 IoT 플랫폼에 구축 사례

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WiFi
Interaction withDevice,
Broker, Platform and
cognitive framework
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1
HUE$BulbHUE$AP
Cognitive$Chip(FPGA)
IoT Broker
Sensing$Power$
Consumption$
Monitor
(In$place$of$TV)
Hair$Dryer
ZigBee
I2C
PIR$Sensor
Current$Cost
Detecting
Things Monitoring
Smart
Situation
Cognitive
Lighting
Control
Notebook
IBM
NodeRed
USB
USB

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PIR SensorTV(Monitor) Hair Dryer
Situation
1
Situation
2
PIR SensorTV(Monitor) Hair Dryer
Situation
3
PIR SensorTV(Monitor) Hair Dryer

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Situation Cognition Chip
Classifier User Preference Learning
Classify
and find
proper situation
for user
Classification Model
PIR
TV
Dryer
Time
Run Scheduling
for each data
PIR Sensor
Hair Dryer
TV
User devices
IoT Broker
Classify Aggregation
Collects data from
external environment
with internal server time
to send chip’s classifier
Hue ControlUser Preference
Learning Data
Send pre-
defined
user preference
data
Control
Hue Bulb #1
Control
Hue Bulb #2
Hue AP
Change Hue
Color
Change Hue
Brightness
User devices

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Specification of Implementation
Implementation Env. Xilinx ISE 14.7(Windows 7), Node-red(Ubuntu 14.04, Odroid)
Programming Lang. Verilog, Node.js
Requirements
Etc.

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Local Variable Module
CU
Discrete Valued Attr. Continuous Valued Attr.
Cont Data 1
Module
Cont Data 2
Module
Disc Data 1
Module
Disc Data 2
Module
CLASS
Module
WEIGHT
Module
ITEM
Counter
FPU BlockFPU Arbiter
Tree Memory
Classification Module
INIT
WE
ADDRESS
Disc_1 DATA
Disc_2 DATA
Cont_1 DATA
Cont_2 DATA
CLASS DATA
ITEM NUM
RUN TRAIN
RUN CLASSIFY
CLASS OUT
DONE
Structure of situation cognition chip

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IoT Broker for connection among Human, Things and Services
! Interaction with various devices
! Interaction with social network such as calendar
! IoT broker can be managed easily by using IoT explorer from smart
phone
! Providing higher security and privacy levels
Device
RegistryDevice(
Description(
Mgr
Device
ControlDevice(
Actuation(
Mgr
Device(
Conf.(
ManagerStore((F ile)
상황인지 플랫폼
Bluetooth 체중계
PHILIPS Hue
IoT 응용 서비스
IoT Broker
서비스 플랫폼
Google Calendar, SNS

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Protocol Conversion Unit Test (CoAP, MQTT)
– Scenario
• Motor sends their data in real time.
• IoT Broker Middleware convert monitored data from UDPto publish message for MQTT.
• Upon monitoring symptoms, the motor can be controlled by CoAPmassages.
– Required techniques
• Protocol Conversion, MQTT, CoAP
Wi=fi
(UDP) IoT Broker
Publish

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External Protocol Resolution (MQTT,CoAP,Web service,HTTP,...)
Application (Business model)
Management
SmartInformation
Security
Service
Organization
Seamless Communication
RFID Bluetooth 802.11 ZigBee Others
Storage and Resources
IoT Broker Service
Virtual Entity
Service Layer
IoT Broker
Device Layer

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Processor
Memory
Operating System Embedded Linux(Linaro Ubuntu)
Development Language C, PHP, Java
Libraries HostAP, dhcpd, califonium
Network IEEE802.15.4/ZigbeeRF, WiFi, Bluetooth
Specification of IoT Broker
Implemented components
– External Protocol Resolution : This module resolves CoAP, MQTT and so on. Then it convert
into compatible protocol messages for communication with other layer.
– Management : This module managesidentification of users,devices. Moreover
– Service Organization : This module resolves CoAP, MQTT and so on. Then it convert into
compatible protocol messages for communication with other layer.
– Virtual Entity : This module resolves CoAP, MQTT and so on. Then it convert into compatible
protocol messagesfor communication with other layer.

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Wireless AP Interface
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Bridged interface
Wireless AP Interface
Eth0 : wired interface connected to the Internet.
Wlan3 : wireless interface with internal connection.
Br0 : bridged interface both eth0 and wlan3.
NAT between eth0 and wlan3 will be implemented.

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Medical
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Device
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Resource
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mobile, smart sensor, telemetry devices
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