power-energy-harvesting in harsh environments! · it clearly watches jitter and not allowed touches...

Forum-Session: Energy Harvesting & Wireless Sensor Networks Hannover Messe 2010

03.05.2010 1

Schedule:

• Short Introduce of the Companies

• Acceleration, Vibration

• Structural mechanics

• Wireless Sensor Notes ( WSN )

• MST-Sensors

• Batteries

• Energy Harfesting

• Power-Kinetic-Energy-Converter-Concepts

Power-Energy-Harvesting in Harsh Environments!


CADwalk GmbH & Co. KG simulate Semiconductor-Devices for highest Frequencies in III-V-Technology and is developing „Wireless Sensor Notes“ WSN since more than fifteen Years.

Simulation:

We build III-V-Layers in CAD and caluculate in FEM-Simulations e.g. current characteristics.

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CADwalk integrates synergetic concepts to create necessary functionality atminimized costs and cost of ownership.With a small microcontroller, a dual-axis MEMS-sensor, a very thinlithium-polymer battery and an ultra flat Bluetooth transceiver we build one of thesmallest, most useful, time and cost saving wireless-acceleration-measurement-system for the automation-, semiconductor- and flat-panel-industry.It clearly watches jitter and not allowed touches during a handling sequence.

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Fa. RAMPF 1926

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RAMPF FORMEN today

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RAMPF SUBSIDIARIES

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Mould for Kerbs

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Molds for Pavestones

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„Stone-Hall“

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The field of application in Dubai

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Sheik Zayed Road with Emirates Towers,

Dubai


Production System

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� Cycle times in manufacturing

(max. 12-20s duration per step)


1 g

7-10 g

25-30 g

25-300g

Acceleration, Vibration

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How should the mold look like the future

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It recognizes itself!

RFID technology!

Energy harvester

supports WSNs

Best material,

optimized in Structural mechanics

WSNs are outonomus

and invisible integrated

The mold optimizes

energy efficiency and

concrete compression

automatically..

Predictive maintenance

WSNs for more

process parameters


Eigenfrequenz

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Structural mechanics


Structural mechanics

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Wireless Sensor Notes

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Lithium-PolymerBattery

Lipo-

charge

-

controller

Voltage -Controller

Voltage-Controller

Baseband-

Controller+

Interface

Transceiver

µController+

Interface

MST-Sensor

ANTENNA

Vibrations on the track

VIBcon, a sensor node designed for real time

visualisation and recording vibration data on

moving machine parts


MST-Sensoren zur Schwingungsmessung

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Dr.-Ing. Jiri Marek, Dr.-Ing. Michael

Offenberg und Dr.-Ing. Frank Melzer

(Robert Bosch GmbH/Bosch Sensortec)


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A kind of Burn-In-Test for Lithium-Ion-Batteries

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Energy Harvesting

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The four main varieties in the litrature are:

� Thermal energy scavengers using e.g. thermo-electrics

� Vibrational energy scavengers, usually using electro-magnetic or

piezo-electric generators

� Optical energy scavengers unsing solar cells

� Radio-frequency energy scavengers using antennae


Polymer Power: Dielectric Elastomers and Their Applications in

Distributed Actuation and Power Generation

03.05.2010 22

A heel strike boot generator

developed by SRI (Fig. 4) investigated

ways to harvest otherwise wasted

energy from walking9. The

demonstrated recovered energy on

the order of 1 W per boot can be used

to supplement battery power charge

small devices such as handhelds or

cell phones, as an emergency backup

source of power, for specialized

onboard boot functions such as

massaging or, in the future, to

enhance walking and other mobility

performance.

Proceedings of ISSS 2005

International Conference on Smart

Materials Structures and Systems

July 28-30, 2005, Bangalore, India


First Idea

jlll

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Construction Space 1 cm3:

Magnet

Coil


1. Principle of a moving coil for a Kinetic-Energy-Converter

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?

?


2. Principle of a Kinetic-Energy-Converter

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Kinetic-Energy-Converter

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Coils of the Kinetic-Energy-Converter

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Harvester Design @ HSG-IMIT

03.05.2010 28

Place of Installation / RequirementsAcoustic MeasurementsData-Analysis

Selection of a suitable Working Principlepiezo-electric, inductive, capacitive, …

Generator-Modeling based on recorded excit. dataAnalytic & System SimulationFinite Elements Simulation

PrototypingMachine ShopClean RoomSupport by Local PartnersTestingLaboratory Test (g-Lab)Field Tests

0000 50505050 100100100100 150150150150 200200200200 250250250250 300300300300-100-100-100-100

-50-50-50-50

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50505050

100100100100

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-20-20-20-20

-10-10-10-10

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10101010

20202020

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Frequency (Hz)Frequency (Hz)Frequency (Hz)Frequency (Hz)

Po

we

r/fr

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(d

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(d

B/H

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a

b


Bernd Folkmer /

15.04.09 / Folie 29

Harvester Design @ HSG-IMIT

0000 50505050 100100100100 150150150150 200200200200 250250250250 300300300300-100-100-100-100

-80-80-80-80

-60-60-60-60

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20202020

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Application:

• Vibration Profile

• Shape / Size / Mass

• Required Power/ Voltage

• …

wanted:

• Operation Priciple

• Optimum Design

� Material

� Magnet/Coil Configuration

� Shape …..

Design?


Bernd Folkmer /

15.04.09 / Folie 30

Harvester Design Optimization

0000 50505050 100100100100 150150150150 200200200200 250250250250 300300300300-100-100-100-100

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N

S

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?

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?

Start

Initialisierung

Bewertung der

Population

Selektion zur

Reproduktion

Ende

Variation Mutation

Bewertung der

Nachkommen

Selektion zur

Ersetzung

Abruchkriterium

erfüllt?

ja

dm+def(x-y)

m

y(t)

x(t)

Evolution Algorithm


Bernd Folkmer /

15.04.09 / Folie 31


0000 50505050 100100100100 150150150150 200200200200 250250250250 300300300300-100-100-100-100

-80-80-80-80

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Evolution Algorithm

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Bernd Folkmer /

15.04.09 / Folie 32


0000 50505050 100100100100 150150150150 200200200200 250250250250 300300300300-100-100-100-100

-80-80-80-80

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Evolution Algorithm

N

S

N

S


Bernd Folkmer /

15.04.09 / Folie 33


0000 50505050 100100100100 150150150150 200200200200 250250250250 300300300300-100-100-100-100

-80-80-80-80

-60-60-60-60

-40-40-40-40

-20-20-20-20

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20202020

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60606060

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Be

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[m

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Be

sc

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un

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ng

[m

/s²]

Be

sc

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un

igu

ng

[m

/s²]

Application:

• Vibration Profile

• Shape / Size / Mass

• Required Power/ Voltage

• …

wanted:

• Operation Priciple

• Optimum Design

� Material

� Magnet/Coil Configuration

� Shape …..


Harvester Design & Transceiver today

03.05.2010 34

Result today:

> 6 Vss

> 3 VDC

>120 mW

Well testet in a Vibration-Range

of > 200 g


Future Applications

03.05.2010 35

power-energy-harvesting in harsh environments! · it clearly watches jitter and not allowed touches...

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