Early exploring design alterna1ves of smart sensor so5ware with actors Jean-Philippe Schneider, Zoé Drey, Jean-Christophe Le Lann IWST 2013 – September, 10th 2013

1. Early
exploring
design
alterna1ves
of
smart
sensor
so5ware
with
actors
Jean-­‐Philippe
Schneider,
Zoé
Drey,
Jean-­‐Christophe
Le
Lann
IWST
2013
–
September,
10th
2013

2. Cabled
Seafloor
Observatory
Source:
MeDON
project
(hKp://medon.info)
2
Sensors
Servers
Large
amount
of
generated
data
to
handle

3. Smart
Sensors
3
Sensing
Data
disseminaRon
Processing

4. Smart
Sensors
4
Sensing
Data
disseminaRon
Processing
Embedded
soUware

5. Prototyping
1. Enable
to
quickly
design
various
alternaRves
of
architectures:
– ComputaRon
– CommunicaRon
2. Test
the
alternaRves
and
help
to
make
a
choice
5

6. Requirements
6
Test:
debug
facili1es
Quick
modificaRons:
modularity

7. Modularity
7
Composite
structure
P1
P2
P3
Sensor
1
Seafloor
Sensor
2
SeparaRon
of
computaRon
and
communicaRon

8. Actor-­‐based
approach
8
Internal
State
Behavior
Message
Box
Object
InteracRng
Concurrent

9. • Actors
are
easy
to
implement
• Good
abstracRons
for
handling
composiRon
Smalltalk
for
modularity

10. • Efficient
integrated
debug
environment
Smalltalk
for
test

11. • Efficient
integrated
debug
environment
• Extendable
Debug
faciliRes
Smalltalk
for
test
Biniou

12. Our
framework
12
ComputaRon
Actor
1
CommunicaRon
Actor
ComputaRon
Actor
2

13. Our
framework
13
Agile
architecture
SeparaRon
of
concerns
ComputaRon
Actor
1
CommunicaRon
Actor
ComputaRon
Actor
2

14. Our
framework
14
ComputaRon
Actor
1
CommunicaRon
Actor
ComputaRon
Actor
2
Put
Get
Data
Ack
Smalltalk
defineClass:
#Message
isPut
^false.
isGet
^false.
…

15. Our
framework
15
Smalltalk
defineClass:
#Get
superclass:
#{Message}
instanceVariableNames:
'consumer
‘
isGet
^true.
ComputaRon
Actor
1
CommunicaRon
Actor
ComputaRon
Actor
2
Put
Get
Data
Ack

16. Our
framework
16
message
:=
messageQueue
next.
(message
isGet)
ifTrue:
[
shouldConRnue
:=
(self
getReceived:
message).
].
ComputaRon
Actor
1
CommunicaRon
Actor
ComputaRon
Actor
2
Put
Get
Data
Ack

17. Our
framework
17
readerMq
:=
getMessage
consumer.
isPutReceived
:=
false.
[isPutReceived
not]
whileTrue:
[…]
ComputaRon
Actor
1
CommunicaRon
Actor
ComputaRon
Actor
2
Put
Get
Data
Ack

18. Conclusion
and
Future
Work
18
Agile
architecture
for
quick
design
and
test
Well-­‐suited
environment
for
fast
prototyping

19. Conclusion
and
Future
Work
19
Hardware
emulaRon
ComposiRon
of
models
of
communicaRon
for
Sea
floor
observatories