Applications today has a limited lifetime

The owner of +20 years data provision technology will bein an unique market position.

How long time is 20 years ?

Is this totally outdated and beyond use ?

Source: Powercast

The Little ProblemSystems at sleep consume all the power

Harvest Energy for Sleep time

+ 20 Years Applications will make sense in the following areas:

Maintenance

Long term storage

Monitoring

Monitoring

Maintenance

Long Term Storage

Typical Usage

Maintenance

Long term storage

Monitoring

Limitations

1 mWat

10°C

100 mW at 2,5 G

20 mW 143 mW

100 mW

Batteries vs. Super Caps

300 mAh @ 1.2 V = 360 J

10 F @ delta V 2 V = 40 J

The Power Conditioner

Harvest tiny amount's of Energy

Build of sufficient charge

Use the Energy in bursts

Case: Traffic counting

Approximations are as good as or better than real values (reduced noise)

Boundary conditions

Installation

Start up

Operation

Life time for the entire system

Times they are changing

Best practices

Keep it simple

Use 100% time on 20% of the requirements

Sketch it

Get user reaction on duty cycled functionality

Brunata - DELTA

Energi harvesting prototype:

The battery was removed and the circuit is now driven from the heat difference between the radiator and the room.

Bell M412 Pitch Link

• The system was able to transmit realtime data about the stress on vital components

• No batteries was needed

• Available power exceeded need300 uW harvested during level flight250 uW needed for realtime operation

Source: MicroStrain

Torro Espacio Madrid

• 4200 Switches which must be rearranged on demand

• Uses en-ocean motion harvestere

• Saves 42.000 batteries in 25 years

Source: En-Ocean

Powercast Coorporation

Pittsburgh Zoo

Structural Health Monitoring in Los Alamos

• The bridge needs to be “cleared” after earthquaktes.

• Bridge health can be monitored by sensors (strain, ultra sound, etc.)

• Experiments shows that a 0.1F 3.3V C can be charged in 200s

• Wireless TX and RX 256 bytes (RS-232) 5.2 m

LA-14314-MS Feb 2007 Los Alamos National Laboratory

Benefits from a Early Entry

• You will gain first hands experience

• You will set the std. and be in control in your market

• The technology is there and you will be able to influence what there is produced

• You will be able to get all available components for a while, which will bring you further in front

DELTA Energy HarvestingExpertise

We have the required knowledge about:

Mechanical Design

Thermo dynamics

Micro-Electronic

Embedded Software

And we are used to combine the expertices

It is possible

Thomas Sørensen

ths@delta.dk