does one size fit all...how to develop a wearable

19 May 2016 S3908-P-835 v0.1

Commercially Confidential

Does one size fit all?

…How to develop a wearable?

Ruth Thomson

As presented at WEAR Boston – 25th May 2016

19 May 2016 S3908-P-835 v0.1 2 Commercially Confidential

Introduction

Technology options

Stakeholder requirements

Designing a successful solution

A sketchpad for engineers



Who we are

Over 500 engineers, designers, scientists, and consultants.

Delivering innovative product development for our clients across many market

sectors including medical, sports & fitness, enterprise, and consumer healthcare.

We work with our clients at all stages from concept generation, through prototyping

to transfer to manufacture & implementation of systems.

http://www.diageo.com/


Sports performance and technique monitoring…

THEN… NOW…

Available technology components

Uptake of smart phones

Use of cloud storage

…


Technology – what are the options?

Wearable device(s)

Wearable

It is easy to focus on the

device, but it’s important

to remember that there

are multiple parts of the

system…


Wearable device(s)

Wearable


sensors

UI

processing

comms

processing

processing

UI

service provisioning

service provisioning

sensors

UI

processing

comms

Technology decisions are required for all parts of the system (and don’t forget the

interfaces!)


Wearable device(s)

Wearable


accelerometer

gyroscope

ECG

optical (PPG)

GPS

EEG

altimeter

pressure

GSR

lactate

camera

GPS

accelerometer

camera

algorithms

processor

power

security antenna

Bluetooth classic

BLE WiFi

GSM

NFC 4G

WiFi

algorithms

processor

power

security

LEDs

haptics display

auditory

display

haptics

auditory

magnetometer



Could you use all the

technology options for

every application?


Well….at best…you may

end up looking like this…



Does one size fit all?!

Clearly…NO!

…or more likely you’ll end

up looking like this…


Introduction

Technology options






In order to develop a

targeted solution think

about the requirements of

the stakeholders and how

much these can vary…


Angle of movement

What are the requirements? What is actually needed?

Technique

Heart rate

Waterproof

Weight

Different sports have different requirements…



Accuracy

Cost

Ease of use

Set up time

Data security

…

Different levels of athlete from mass consumer

to elite have different requirements…



coach

sports

scientist media

fans

time?

It’s easy to focus on the athlete themselves, but think about possible

other stakeholders who may be interested in the info from the wearable…

Think about the context of TIME…the type of information the coach wants to

know mid game is different to the info they want to know in a post game debrief


Introduction

Technology options






What’s your minimum viable product?

I’m not saying you shouldn’t be ambitious, but you should think through what

would be the MVP that would be successful for you. This will allow you to

focus on delivering rather than being distracted by ‘nice to have’ features

which could increase the scope and delay your development.



Changes to one element of the system often affect others.

Understanding this and managing the system architecture are critical.

Designing a successful solution: it’s a system


Designing a successful solution: it’s a system

Demanding applications can result in conflicting design requirements.


Imagine…

…you have an idea for a connected product/service…

…you know you need a device, but you don’t know if what

you want is possible in a size/cost/power that will fulfil your

target value proposition…

…you want to get a better of understanding of what is

possible before you invest lots of time and money in

development…


Imagine…

I can envisage an elegant

wearable design….but will

it all fit? How big will the

device be?

…I want the battery to

last 2 wks min….is

that possible?

…what will it cost?...

…can the

measurements be

‘good enough’?


To deliver your connected product/service there are

lots of things that you need to consider…


In this talk we are focusing on the technology


TRADE-OFFS – Understanding what is important


It’s important to consider the trade-offs and think

through what is important for your idea so you

can balance the requirements for your target

application



Consider an implantable medical device…

…clearly for this application optimising the

battery performance is much more

important than the cost of the device…



…whereas for a high volume consumer

fitness wearable device optimising the cost

and the size will likely be the most

important factors


…think about what is important for your

idea and focus the development effort

where you are going to get the best

commercial return…

…and be aware of the point of diminishing

returns. Know how to recognise what is

‘good enough’ performance to meet your

value proposition..


So, imagine you have an idea for a connected device /

system…

…how can we quickly explore what could be possible before

you commit significant time/budget to development?

We can do this using fast simulation tools that we have

developed at Cambridge Consultants building on our

experience of developing multiple different connected

devices / systems over many years

To illustrate this we will use a simple example of a

wearable…


I want a connected product that…


If I take my idea and work with an industrial designer this is

a really useful process…

…the idea comes out of my head and becomes alive…

…this enables feedback and discussion so I can quickly

iterate and evolve my thoughts on what I want to achieve…


How do we make a better sketch pad for everything

else?


We wanted to create a sketch pad for engineers so we can

quickly iterate and evolve an idea, and make the trade-offs

visible and easy to understand to inform decision making.

So we invested in in-house simulation tools to make this

possible!

What’s the first step?

Working with engineers I can quickly understand what are

the key components I need within my design…


What do I need inside my connected product?


How big will it be?

2 cm

Using our in-house simulation tools we

can instantly generate an approx image of

the possible PCB area to get a sense for

the potential size of the device

This is the size you will get if you just use

the standard available parts

You may be relieved…

or you may think this is

far too big for your target

application and want to

understand how we can

reduce the size…

You can see that the

large brown area is the

dominant factor effecting

the size. This is the

ground plane for the

antenna….


How can I make it smaller?

2 cm

…we know that if we invest more

effort in the development we can

reduce the size of the ground

plane.

Here we’ve shown the possible

reduced size using the in-house

simulation tools.

Clearly this design will take more

time and money in development

but you can now visualise the

difference this will make to the size

and be able to make an informed

decision on what makes sense for

your business.


So how long will it last?

LED

Processing of

sensor data:

The algorithm

We can use our in-house

simulation tools to quickly

generate a breakdown of the

energy expenditure

This allows us to see what is

having the biggest impact on the

battery life.

For your target application you

may want a longer lifetime than 5

days and so you we can explore

how we could improve this by

using the simulation tool


That’s not great – make it better

By using a button instead of the LED

you can improve the battery life.

Clearly this will also impact the user

experience but you now have the

information to understand the trade

off.

You could also invest in more

development effort to improve the

algorithm to make it more efficient.

…we’re making the trade-offs visible

to allow you to make informed

decisions


If you are creating a ‘sensing’ device you will also

want to understand what is it possible to measure

and at what accuracy

Rather than invest in custom hardware for each

project we have created ‘sensor pucks’ which enable

us to quickly experiment…


Next…..Experiment and Play!

+

Hardware data collection

platform

a.k.a. a super duper sensor

puck

Truth data

a.k.a. capture the full picture of

what is actually happening with

human interpretation



+

Apply smart mathematicians and analysis



+


We’ve created a video that tells

you more about this approach

which you can view here

https://www.youtube.com/watch?v=xKnEm0uVy_s


Introduction

Technology options




Thank you! Any questions?



More about the presenter…

Ruth Thomson leads the Consumer business at Cambridge

Consultants. She has more than 14 years’ experience of

working with consumer brands, using technology to deliver

innovative consumer experiences across a range of

products and services. In the wearables space she is

working across sports and fitness technology, consumer

healthcare and personal care applications bringing

Cambridge Consultants' significant skills and experience in

the development of novel connected systems to these

opportunities for innovation.

More info at https://www.linkedin.com/in/ruththomson

Contact Ruth at [email protected]

https://www.linkedin.com/in/ruththomson

https://www.linkedin.com/in/ruththomson

mailto:[email protected]

19 May 2016 S3908-P-835 v0.1

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in Innovation. www.Altran.com

www.CambridgeConsultants.com The contents of this presentation are commercially confidential and the

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does one size fit all...how to develop a wearable

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