Diapositiva 1

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Cansat Competition 2010 Team CATSAT TEAM
(Students) Country Spain University
Universidad Politécnica de Madrid
Escuela Técnica Superior Ingenieros
Aeronáuticos Category Experimental-Cansat Siz
e Cansat Size Team leader Miguel Ángel
de Frutos Carro Team members Almudena Buelta
Management and
Administration Alejandro Bujarrabal Data
Analysis and Structure Carlos Freire
Structure and Treasury Juan Fernández
Parachute system Miguel Ángel de Frutos
Electronics and Programming
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Cansat Mission

• Detection, measurement and registration of
  different physics variables.
• Verification of the existence of useful
  microgravity.
• Design a modular electronic device which can be
  used in futures amateur rockets
• Practical realization of a recovery system which
  allow us a controlled opening.

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Flight Data

• Outside temperature.
• Barometer.
• Barometer altimetry.
• Acceleration in 3 axis.
• Speed on 3 axiss.
• Space travelled in 3 axis.
• Microgravity.
• GPS coordinates.
• GPS height.
• GPS speed.
• GPS heading.
• Event detection take off
• rocket exit

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Electronic and Programming
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Electronic and Programming
Accelerometer
G-Switch
Pressure Sensor
Microcontroller BS2
EEPROM 256k
TemperatureSensor
Voltage Regulator
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Electronic and Programming
Acelerometer
GPS Module
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Microcontroller BS2

• Processor Speed 20 MHz Turbo.
• Program Execution Speed 12.000 RAM Size
  38 Bytes (12 I / 0, 26 Variable).
• Scratch Pad RAM 128 bytes.
• EEPROM (Program) Size 8 x 2 KBytes, 4,000
  PBASIC instructions.
• Number of I / O Pins 16 2 Dedicated Serial.
• Current Draw _at_ 5 VDC 40 mA Run, 350 uA Sleep.
• Source / Sink Current per I / O 30 mA / 30 mA.
• PBASIC Commands 61.
• Package 24-pin DIP.

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Pressure Sensor Motorola MPX 4115th  This
sensor is an integrated circuit capable of
measuring absolute pressure through a membrane
system. It produce an output voltage proportional
to 0.204 to 4.794V.
Temperature Sensor Dallas DS1620 The DS1620 is
an integrated circuit that works as a digital
thermometer and uses a SPI communication to
communicate with the microcontroller.
EEPROM Microchip 25LC256 SPI (256K)  EEPROM
stands for Electrically-Erasable Programmable
Read-Only Memory (electrically erasable and
programmable ROM). It has a capacity of 32768
bits organized in 8-bit addresses.
3-axis accelerometer Hitachi H48c  The 3-axis
accelerometer Hitachi H48c is an integrated
device type MEMS capable of measuring
gravitational forces (g) on 3 axes, ranging from
0 to 3g
A G-Switch is a switch whose state depends on the
acceleration forces. 
GPS Parallax receiver Module
The Parallax Global Positioning System
(GPS) Receiver Module is a fully integrated,
low-cost unit completed with an on-board patch
antenna.
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And the Energy.
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Flight Data Analysis
Cansat Device
EEPROM FULL
EXCELDIRECTLY
EXCEL SpreedSheet
GRAPHiCS

• GPS Track on Google Earth
• Data table
• Graphics and Diagrams

Google Earth
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Structure subsystem

• Objetives
• Protect the electronics and support the parachute
• Desing an fiberglass structure.
• Minimizate the aerodinamical drag

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Structure subsystem

• Desing
• Fiberglass
• Two parts
• Sizes
• long 11.5 cm
• radio 3.3 cm

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Structure subsystem

• Construction process

Plaster mold
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Structure subsystem

• Fiberglass and Epoxi resin

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Structure subsystem

• Sand and paint

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Recovery subsystem

• Objectives
• To desing a parachute acording to the weight of
  the cansat.
• To esing an aperture sytem.
• Recover the cansat safely.

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Recovery subsystem

• Our parachute desing
• Made of Nylon.
• Spherical shape.
• Size R 0,375 m
• Braided Nylon threads, 1 meters long

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Recovery subsystem

• Parachute construction
• Cut 8 isosceles triangles of Nylon
• Sewn the triangles
• Make 8 holes for the threads
• Make a hole in the center

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Recovery subsystem

• Parachute bending
• Fold in a half the parachute, keeping the thread
  taut.
• Hold the centre of the parachute,and bend small
  triangles, from the ends toward the center.
• From the far end of the threads start to wind the
  parachute and then continue rolling the threads.
• Anchor the last thread to the structure of the
  cansat.

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Budget of the mission

• Electronic Subsystem..TOTAL 190
• Structure Subsystem..TOTAL 19
• Parachute and Recovery subsystem.TOTAL 6

TOTAL 215
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CATSAT TEAM
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Yeahhh!!..Also in our WEBSITE!!
Free Project Downloading Sketches, codes,
schematics ..

• http//sites.google.com/site/catsatteam/

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