Presentacion Chasqui Montana (1671)
-
Upload
edwin-c-abregu -
Category
Documents
-
view
127 -
download
0
Transcript of Presentacion Chasqui Montana (1671)
First steps to establish a small satellite program in Peru
The CHASQUI-I project
CHASQUI Team http://www.chasqui.uni.edu.pe
IEEE Aerospace Conference
March 6 – 13, 2010 Big Sky, Montana - USA
Universidad Nacional de Ingeniería
Centro de Tecnologías de Información y Comunicaciones- CTICLima - Perú
PURPOSE AND MOTIVATION
The Chasqui TeamUniversidad Nacional de Ingeniería, Lima - Perú
Page 2
The objective of the project development is primarily Educational: to educate Peruvian students in space technologies and space engineering
CHARACTERISTICS
• Dimensions: 100 x 100 x 100 mm• Tolerances: ±0.1 mm• Mass: 1 kg• Expected Orbit: Sun-synchronous
polar at altitude about 450-850 km (LEO)
• Expected Lifetime: 6 - 8 months• Payload: VGA camera and NIR
camera• Communications: UHF downlink/UHF
uplink
CHASQUI-I Engineering Model
Page 3
Page 4
Ing. Carlos Medina Ing. Enrique Sarmiento
SUBSYSTEMS
SIMA Camera
Imaging System
SDCA
Attitude Determination and Control System
CameraPCT
Power and Thermal Control
TCS
CameraSICOM
Communications System
ESTER
Ground Station
POWER BUSPOWER BUS
CONTROL BUSCONTROL BUS
Ing. José Oliden
Lic. Germán Comina Dr. Ing. Elizabeth VillotaIng. Daniel DiazIng. Roxana Morán
MSc. Lic. Fernando Huamán
Dr. Ing. Glen Rodriguez
MSc Ing Edwin Abregú.
Batería ION LITIO
Project Head: Hector Bedón / José Oliden
MGP
Project Management MSc. Lic. Edgard Vidalón
MCUMC9S08QE128
SPI I2C UART BDM
Input 3.3V
Memory FLASHSD BDM
connector
Clock 4MHz
EMEC
CAMERA BUSCAMERA BUS
CCMI
MIP
Integration and Testing
Mechanical Structure
Main Control and Information Management
SORAT
Orbits and Atmosphere Systems
MAIN CONTROL & INFORMATION MANAGEMENT (CCMI)
Tasks:• To define communication features with other modules.• To control functions among the subsystems.• To determine the operation modes and manage these modes.• To develop the Freescale main controller program.
MCUMC9S0
SPI I2C UART BDM
3.3V
Memories
FLASH
SecureDigital
Conector BDM
SCLK
MOSI
MISO
SS
MCU
MC9S08QE128
Page 5
Objective: to manage and monitor information of all satellite subsystems
POWER SYSTEM (PCT)
Page 7
Objectives: to generate, manage and supply energy to the satellite subsystems; to send data to CCMI
SICOMSDCASIMA CCMI
3.3 V
data (current, voltage, temperature and battery state of
charge )
POWER SYSTEM
THERMAL SYSTEM
5.0 V
PCT
Page 8
POWER SYSTEM (PCT)
Solar Panel
Battery Charging Circuit
MCU
Data Bus Power BusControl Bus
Voltage Regulator1
(3.3 V)
to CCMI and SICOM
Boost Converter1
(5.0 V)
to SDCA
Voltage Regulator2
(3.3 V)
Boost Converter2
(5.0 V)
Voltage sensor
Current sensor
Current sensor
Temperature Sensors
Heaters Control Circuit
Boost Converter3
(5.0 V)
Heaters
to CCMI and SICOM
Conditioner Circuit
BatteryTemperature Sensors
to CCMI and SICOM
to SIMA and SDCA
to SICOM and CCMI
from CCMI
PCT diagram
THERMAL CONTROL SYSTEM (PCT)
Passive Thermal Control:• Finite Element Method analysis• Aluminum 6061-T6 (Structure)• Kapton (Insulator)• Silicone (Insulator)
Active Thermal Control:• Heaters (Nichrome wire)
Page 9
Objective: to maintain the temperature of all satellite subsystems within their operating ranges
Space Environment
COMMUNICATION SYSTEM (SICOM)
Characteristics:• Frequency band: UHF for satellite amateur communications (435-438 MHz)• Operation mode: Half duplex• Transmit power: 0.5 W• Modulation: FSK• Downlink Baudrate: 1200 bits/s• Uplink Baudrate: 1200 bits/s
Page 10
Objective: to receive and decode the commands from ground station and, code and transmit data to ground station
Page 12
MSP430
CCMI
Dipole
~ 435-438MHz (TBD)
Modem/Transceiver
TNC RX
TNC TX
Switch
Mod. FSK
Demo. FSK
1200bps
AX.25
AX.25
Commands
Data
TNC
Uplink
Downlink
RF signal
RF signalAmplifier
COMMUNICATION SYSTEM (SICOM)
SICOM diagram
Page 13
GROUND STATION (ESTER)
Objective: to track the satellite, receive the satellite's data and send it commands
SoftwareTransceiver
Antennas
Computer
Serial R232
Cable (USB)
Amplifier
TNC (terminal node
controller)
Rotor (motor)
Parallel port
ARS
INTERNET
ESTER diagram
SYSTEM FOR IMAGE ACQUISITION (SIMA)
• OV7640 CMOS VGA640x480 Pixels• Automatic White Balance (AWB)•Automatic Gain Control (AGC)NIR Camera
Objective: to obtain Earth pictures from the CHASQUI-I .
Visible
NIRMultiplex Main Control
MemorySIMA
NIR Visible
Page 14
ATTITUDE DETERMINATION & CONTROL SYSTEM (SDCA)
desired attitudedesired attitude
conditions after deploymentconditions after deployment/perturbation torques/perturbation torques
estimated estimated attitude attitude
actuation torquesactuation torques
Page 15
Objective: to stabilize the satellite after its deployment and orient it for communication and Earth photographing.
SDCA Software: Attitude and Control Simulator developed in Simulink
ATTITUDE DETERMINATION & CONTROL SYSTEM (SDCA)
•Initialization (Init)•DeTumbling (DT)•Data Acquisition only Magnetometer (DAM)•Data Acquisition All (DAA)•Data Estimation (DE)•Fail Safe (FS)•Power Safe (PS)•ORienting (OR)•PoinTing (PT)•Upside-Down Recovery (UDR)
InitInit
OffOff
FSFS
DTDT
OROR PTPT
UDRUDR
DAMDAM
DAADAA DEDE
CC
A*A*
BB
D*D*
GGFF
EE
H*H*
JJ
KKLL
II
MM
NNPSPS
PPOO
Definition of Operation Modes
Page 16
Simulation Results for Stabilization
ATTITUDE DETERMINATION & CONTROL SYSTEM (SDCA)
SDCA Hardware: Sensing and Actuation Buses
GPS: MN5010HSGPS: MN5010HS
MAGNETOMETER: MICROMAG3
GIROSCOPE: ADIS16265
SOLAR CELLSCURRENT SENSORS
SPISPI
UART
A/D PWM A/D
MAGNETIC COILS
DSC: MC56F8013
I2C
MCU: QE128
Page 17
Objective: to provide protection to all electronic devices, subsystems and payload, and support the antennas.
MECHANICAL STRUCTURE (EMEC)
Virtual Model
• Material: Aluminum 6061-T6.• Thickness: 1.3 mm. • Welding process: TIG. • Analysis: Finite Element Method.
Mechanical StructurePage 18
Universidad Nacional de IngenieríaCentro de Tecnologías de Información y Comunicaciones - CTIC
1. PCB with solar sensor and gyroscope (SDCA)2. Solar Panel (PCT)3. Electromagnetic Coil (SDCA)4. Permanent Magnet (SDCA)5. PCB of Central Control (CCMI)6. PCB of Power and Thermal Control (PCT)7. PCB of determination and control of attitude (SDCA)8. PCB of communication (SICOM)9. PCB of image acquisition (SIMA)10.PCB of solar sensor (SDCA)11. Batteries package (PCT)12. Tightness Nut (MIP)13. Structure cover (EMEC & MIP)14. Satellite structure (EMEC & MIP)15. Subjection Bars (MIP)
Objective: to integrate the subsystems and perform environmental tests.
INTEGRATION AND TESTS (MIP)
Page 19
ELECTRODYNAMIC SHAKER• Definition of components• Conceptual design• Revisions and modifications• Finite Element Method analysis.• Detail drawings
VACUUM CHAMBER • Design of vacuum chamber.• Design of dry ice vessel.• Fabrication of vacuum chamber.• Fabrication of dry ice vessel.• Air tightness test of vacuum chamber.• Dry ice temperature test.
INTEGRATION AND TESTS (MIP)
Equipment for testing is being designed and fabricated
Page 20
The Chasqui Teamhttp://www.chasqui.uni.edu.pe
Project Head: Hector Bedón / José oliden E-mail: [email protected] [email protected]
Module responsiblesCCMI: Eng. José Oliden Martínez PCT: M.Sc. Lic. Fernando Huamán PérezSIMA: Lic. Germán Comina BellidoSDCA: Dr. Eng. Elizabeth Villota Cerna SICOM: Eng.Daniel Diaz Ataucuri,
Eng. Roxana Morán Morales.EMEC: M.Sc. Eng. Edwin Abregú LeandroESTER: Dr. Eng. Glen Dario Rodriguez Rafael SORAT: M.Sc. Lic. Edgard Vidalón VidalónMIP: Eng. Enrique Sarmiento SarmientoMGA: Ing. Margarita Mondragón Hernández
AdvisorsEng. Carlos Fiestas SalazarEng. Rubén Acosta Jacinto Eng. Alejandro Ramón Vargas Patrón Eng. Milton Ríos JulcapomaM.Sc. Sergio Salas Arriarán Eng. Jorge David Taramona Perea M.Sc. Eng. Damián Sal y Rosas Celi Eng. Jaime Alberto Estela Gutiérrez Eng. Juan Martín Canales Romero
Page 22
Fredy Arturo Calle Bustinza Jhosep Alan Valenzuela Matutti Piero Daniel Ardito Ynouye Manuel Alejandro Ignacio Yaranga Carlos Eduardo Negrón Montoya Jorge Llantoy Parra Elvis Omar Jara Alegría Segundo Gerardo Gamarra Quispe Pedro Aberga Farro Alldrin Uriol Alvino Jhosep Jim Guzman del Rio David Vega Diestra Raúl Montes Melgarejo Jack H. Dionisio Esteban Lic. Dane Cachi Eugenio Vanessa Gamero Sobero Diego Gomero Cruzatt Iván Christian Velásquez Aparco Dante Inga Narvaez Jesus Alberto Sánchez Pacheco Leonardo Solís Vásquez Henry Omar Huaroto Ochante
Antonino Espinoza Cárdenas Joan Manuel Calzado Canteño Lic. Fredy Miguel Loayza Cordero Miguel Chicchon Apaza Sammy Carbajal Ipenzas Klebes Arias Quispe Renato Miyagusuku Ríos John Rojas Paredes Celso Vilca Gavidia José Albites Sanabria José Alfredo Durand Cardenas Ántero Castro Nieto Carlos Delgado Ynga Jim West Montoya León Persing Junior Cardenas Vivanco Alvin Mostacero Natividad Rolando Wilder Adriano Peña Javier Quintana Esquivel Eduardo Diaz Escate Miguel Angel Alcántara Pinedo David Barreto Lara Federico Málaga Luyo Edgardo Toshiro Tabuchi Yagui Gustavo Quino Quispe Marco Pari Vega
The Chasqui Teamhttp://www.chasqui.uni.edu.pe
Researchers
Page 23