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Waste Energy can be collected and re-used

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Academic year: 2022

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(2)

Working without Energy

If wireless systems can work without addition of If wireless systems can work without addition of

energy after installation

a whole new world of +10 years applications become possible

(3)

Waste Energy can be collected and re-used

(4)

How are systems perceived today

l Always ready

l Up-time / Down-time

l Latency

l Boot time

(5)

Types of Applications

l Periodic

Autonomous systems

l Autonomous systems

l On demand

l Most systems today

l Real time

l Safety critical systems

l Safety critical systems

l Periodic Available

l New applications

(6)

The Idle Case

Systems at sleep consume all the power

Source: Powercast

Harvest Energy for Sleep time

(7)

Case: Traffic counting

Approximations are as good as or better than real values

or better than real values (reduced noise)

(8)

Types of Applications

l Periodic

Autonomous systems

l Autonomous systems

l On demand

l Most systems today

l Real time

l Safety critical systems

l Safety critical systems

l Periodic Available

l New applications

(9)

Waste Energy can be collected and re-used

(10)

The Power Conditioner

l

Harvest tiny amount's of Energy

l

Build of sufficient charge

l

Build of sufficient charge

l

Use the Energy in bursts

(11)

Low Energy Charge Pump

l Seiko S882Z Almost there Almost there

(12)

The System View

Mesh network

Optimize power in a Optimize power in a

system context

(13)

Can we turn it off

(14)

What are the real impact of lost data

Mature response ?

(15)

Bell M412 Pitch Link

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

No batteries was needed

No batteries was needed

Available power exceeded need

300 uW harvested during level flight 250 uW needed for realtime operation

Source: MicroStrain

(16)

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

(17)

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

in 200s

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

LA-14314-MS Feb 2007 Los Alamos National Laboratory

(18)

How about your product

(19)

DELTA Energy Harvesting Expertise

We have the required knowledge about:

l Mechanical Design

l Thermo dynamics

l Micro-Electronic

l Embedded Software

l Embedded Software

l

And we are used to combine the expertices

(20)

It is possible

Thomas Sørensen ths@delta.dk

Referencer

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