LED

sheumh@yuntech.edu.tw

IntelligentandEnergySavingStreetLightSystemDesignBasedontheModulationofMultiColorTemperatureLEDs

1

20130627

2

LED

20092010

20102012

2012

2012()

91002012

20121201412014

20132016

(2012/3): 9%

3

LED

Lighting

Automotive

19% LED18%; LED 80%; 1000/:20132014; 200; 25LED,LED=12.78=; A44LED40%; LED70%;

(Lighting Japan 01/06/2013)

LED:

()

4

TheSpecificationof SmartStreet Light

5

MultiColorTemperatureLEDs(LED)

(Hrs) 20000~50000

(lm/W) 80~108

(Ra) > 80

(W) 120

2500K~6500K

0

95%

LED

()

6

:LED

1.

2.

:LED

1.LED,,,

2.LED

:LED

1.LED

2.LED

:LED

1.LED

2.

/

V

SensorIC

(A)120WRGBYLED

(B)120WLED

/

PWM

LED

ASIC

DSP

ARM

1. 2. 3. 4. 5. LEDSoC

SPI/GPIO

Server

/Server

7

SwitchingPowerSupply

SoC

FPGA

ASIC

8

Server

LED PWMIC

IC

LED

ICLED

/

9

LED/

(ECG)

(EEG)

100% 4000K

100% 5700K ()3500K

50% 5000K

100% 5700K ()2500K

-LED

140W LED

White+Red+Yellow

2800K~6500K

10

-

LED ChipLED Chip+

LED Chip

LED

12

LED

HighEfficiencySwitchingPowerSupply

AC90~240V

5V/3A 40~60V/2A

HighPowerLEDDriver

LowPowerCircuit

LDOChip

Toanalogcircuit

BuckDC/DCConv.Chip

Todigitalcircuit

BoostDC/DCConv.Chip

Tointerfacecomponent

DriverBuffer

12

-

()

(25)

CIC 4/

14 Mixed-Mode IC

1. IC: 7 (T25HV)2. IC: 63. :IC

10 IC

--1 High-

Power IC

PWM LED

Dutycycle80%

Dutycycle20%

LED

5WLEDx4 5WLEDx8

PWM

LowPowerMultiplier

13

- One-Channel LED Driver IC

8x5W LED

Chip Performance

One-Channel LED Driver Chip

LED Output Voltage 50VOutput current 540mACore Size 900um * 600umMOS Tr. Count 224Power Dissipation 2.46WEfficiency 91%Processing Technology

TSMC 0.25 HV 1P5M

Package Type SB18Die Layout

14

Two-Channel LEDDriver Chip

250 Chip Sample

LED 30%

LED 30%

LED 90%

LED 50%

15

- Two-Channel LED Driver IC

-IC

Layout

60oC40oC

16

LEDSoC

17

LED

ImagePreprocessing

sensor

LED

/

LED

SPI

17

LED

_

(++)

(+)

TI +LED:

SOC:ARM+FPGA

-

18

HighDynamicRangeVideo forNightSurveillanceHighExposureVideo

NormalExposureVideo

FusionVideo

F

1. Blend 2 video with different exposure times

2. Reduce reflected light for vehicle;

3. Lower remnant image for moving object;

4. Improve the quality of night video

Night Vehicle Detection

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NightStreetImage LightSourceDetection OurApproach

1. Eliminatereflectedlight2. Deletefixedlight3. Detectmovinglight4. Recognizeobjecttype

ScooterDetection CarDetection

-

()

(9) 1/ 1

(5)

3/ 8

(6) -- 1

-- 5

21

()

(18)SCI 4/ 15

IEEE 2IET 3

IEICE 1Optic 2

Best paper award 3

EI -- 3

(36) 8/ 17

-- 19

-

:LED

:LED

:

22

-

23

SIIF

:LED

:

:Chip Size Package LED

PowerSaving forLED Street LightLED: 120W12LED:: 120W5

75%: 80W350%: 60W41000Powerdissipation

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LED LED

12h*120w*1000=1440

5*120w*1000=600

(3*80w+4h*60W)*1000=480 360

20.83%

LED>20.83%

1440*365=525640

600*365=219000

480*365=175200 131,440

CO2() 316.2

2.2*365=131.7

0.4*365=105.4 79

-

IC

25

-

&--14:30~16:30PM

15:00~17:00PM

Leisure Suit

ThankYouforYourAttention

26

Conclusions

GroupSlogan:

ProjectFeatures:6ICESDSPPhotoelectronic

Power Electronic and Human Factor technologies