Apresentação que mostra parte dos trabalhos de pesquisa em desenvolvimento no LSEC.

1. Laboratory of Critical Embedded
Systems (LSEC)
Supervisor: Profa. Dra. Kalinka R. L. J. C. Branco

2. A control system focused on
minimizing drift - specification of a
VTOL
Natássya B. F. da Silva

3. Concepts
• UAV (Unmanned Aerial Vehicles)
▫ Critical Embedded System.
▫ Composed by sensors, microprocessors and
communication units.
▫ Ground station.

4. Concepts
• VTOL (Vertical Takeoff and Landing)
▫ Fixed-wing aircrafts, helicopters and others with
powered rotors like quadcopters.
▫ Increased flexibility.
• Tailsitter
▫ Takeoff and land on its tail.
▫ Uncomfortable position for the pilot.

5. Concepts
• VTOL operation.

6. Concepts
• PID Control (Proportional, Integral and
Derivative)

7. Application Scenario
• A manned aircraft is responsible for the
pesticide spraying.
• VTOL used for direct sensing.
• Communication with the manned aircraft.
• Minimize the drift.

8. Objective
• To build a control system that allows the VTOL
to fly autonomously in its three modes:
takeoff, land and cruise.

9. Tools and Techniques
• Model Driven Development.
• Simulink and Real-Time Workshop.

10. Tools and Techniques

11. Tools and Techniques
• X-Plane Simulator

12. Tools and Techniques
• Hardware in the loop

13. Extending unmanned aircraft systems:
specification of a data communication
architecture
Daniel F. Pigatto

14. Goals
• There are researches that specify and validate
architectures for UAS, but they do not focus
specifically on data communication aspects;
• These researches also do not consider the
concept of IFA (In-flight awareness), which is
based on Sense and avoidance;
• The main goal of this project is the
development of a data communication
architecture for UAS.

15. Reference
model for
UAV
architectures

16. Reference
model for
UAV
architectures

17. Service-oriented architectures for
complex safety-critical embedded
systems: a case study on UAVs
Douglas Rodrigues

18. PhD Project
• This project proposes the use of SOA for critical
embedded systems, focusing on UAVs.
• The approach proposed in this PhD project
considers critical embedded systems can be
divided into sections of low and high
criticality, from a reference model architecture
for UAVs proposed in Rodrigues et al. (2011).

20. PhD Project
• KBF extends the broker service discovery
capability adding knowledge about the
application domain.
• In this way, the application designer, or even the
application itself, can choose or compose the
best service based on a set of usage rules and
some selection criteria such as:
▫ dependability, security, performance and real
time response.

22. Development of a Plug and Play
Mechanism for using Smart Sensors
Arrays in UAVs
Rayner M. Pires

23. Objectives
• Contribute for the progress of UAV autonomy
• Dissociate from the aircraft the mission
processing task
▫ Use of MOSA (Mission-Oriented Sensors Array)
▫ Proposal and development of
SSP (Smart Sensor Protocol) and
SSI (Smart Sensor Interface)

24. Mission-Oriented Sensors Array

25. SSP
Hardware
connection
Data exchange
via SSP/SSI
⁞
Mission
accomplishment

26. SSP
Connection and Mission parameters On-the-fly
Mission feasibility data
Session establishment negotiation
exchange
•Is it na aircraft?
•Is it ready to fly?
•What’s the estimated
remaining autonomy
time? MOSA and UAV
•Feasible
•Can it fly over the given •Partially feasible
exchange data while
GPS points? •Unfeasible mission
•Can it fly under specific accomplishment
speed and height?
•Does it have external
services?
•How can they be
invoked?

27. SSI
• It’s a connection middleware
• Via of communication between both parts
• Enables conversation through SSP

28. Generation of spectral signatures for
detection of pathologies in Eucalyptus
crops - A study using UAVs
Adimara B. Colturato

29. Objective
• Comparison between:
▫ Direct methods -
counting diseased plants
and quantification of the
percentage of injured
tissue by pathogens
▫ Indirect methods - analysis of
reflectance at different wavelengths
(multispectral analysis) making use
UAV's and image processing.

30. Pathologies considered
Rust
Ceratocystis wilt
Tip drought
Bronze bug

31. Objective
• The spectral signatures produced will be used in
the design of specific low cost multispectral
sensors that can be embedded in UAVs for the
automatic mapping of each problem.

32. Computer Network Virtualization: An
approach considering mobility and
georeferencing
Paulo Henrique Moreira Gurgel

33. Difficulties in the study of computer
networks
• How to study computer networks?
▫ Routing protocols? (RIP, OSPF, EIGRP)
▫ How to verify if the message was really sent from a
machine to another one?
▫ How to test a distributed application without the
final environment?

34. Visiting a network laboratory

35. Scenario Sample

36. Virtualization x Simulation
• Virtualization as a solution
▫ You can go further
▫ Not restricted by simulation rules

37. Cisco Packet Tracer

38. Netkit Tool

39. Mobile Networks
• More protocols and equipments
▫ Ad-hoc networks
▫ Wireless Routers
▫ GPRS, GSM, 3G, 4G, etc.
▫ GPS

40. Master Degree Project
• The actual tool does not supports mobility.
▫ Need of mobile devices
▫ Use of embedded devices special virtual machines

41. Structural Diagram

42. Structural Diagram

43. Draft 1

44. Draft 2

45. Thank you!