17-05-2012, 12:45 PM
AUTONOMOUS AIR SHIP
[attachment=22233]
The objective of this project is to develop an autonomous, generic flight
navigation and surveillance system , comprising the electronic hardware,
integration with actuators. The flight platform chosen for demonstrating autonomous navigation and surveillance is a non rigid airship, otherwise known as a blimp.
‘One of the aims of this project therefore would be to research and develop and autonomous proof of concept blimp that is significantly smaller than those developed presently’.
Some primary objectives of this project are
Aerial photography
Real time video transmission
Aerial navigation
Autonomous hovering
The advantages of Blimp over other types of UAV (unmanned aerial vehicle) are
Low cost
Low power consumption
Low noise signature
Stationary surveillance
The central challenge of our project is to build a circuit that was sufficiently light to be carried on-board the blimp.
The system consists of a dynamic flight platform structure called blimp and a stationary controlling section.
Blimp section:
CPU section:
The CPU section consists of a pic16f877 series which controls all the process carried out. The pic execute the code and it communicates with GPS,
e-compass, altitude sensor.
GPS:
The gps is used to get the exact co-ordinates of the position of blimp. It gives the data’s like Time, latitude, longitude, velocity, height…
The real time co-ordinates of the gps is used for the autonomous flying of the blimp
e-compass:
As airship is more susceptible to environmental factors, particularly wind
the blimp has an inbuilt error controlling mechanism. The compass provided in the blimp gives the bearing of the airship If the blimps position changed by wind or some other means, the electronic compass in check the change in the angle in position and given to microcontroller which then controls the thrust motors and nullify the error.
Altitude sensor:
Even though the gps gives the idea about the height of the blimp, that value is not accurate. So a barometric pressure sensor(MEMS) is used to find the height of blimp with high precision.
[attachment=22233]
The objective of this project is to develop an autonomous, generic flight
navigation and surveillance system , comprising the electronic hardware,
integration with actuators. The flight platform chosen for demonstrating autonomous navigation and surveillance is a non rigid airship, otherwise known as a blimp.
‘One of the aims of this project therefore would be to research and develop and autonomous proof of concept blimp that is significantly smaller than those developed presently’.
Some primary objectives of this project are
Aerial photography
Real time video transmission
Aerial navigation
Autonomous hovering
The advantages of Blimp over other types of UAV (unmanned aerial vehicle) are
Low cost
Low power consumption
Low noise signature
Stationary surveillance
The central challenge of our project is to build a circuit that was sufficiently light to be carried on-board the blimp.
The system consists of a dynamic flight platform structure called blimp and a stationary controlling section.
Blimp section:
CPU section:
The CPU section consists of a pic16f877 series which controls all the process carried out. The pic execute the code and it communicates with GPS,
e-compass, altitude sensor.
GPS:
The gps is used to get the exact co-ordinates of the position of blimp. It gives the data’s like Time, latitude, longitude, velocity, height…
The real time co-ordinates of the gps is used for the autonomous flying of the blimp
e-compass:
As airship is more susceptible to environmental factors, particularly wind
the blimp has an inbuilt error controlling mechanism. The compass provided in the blimp gives the bearing of the airship If the blimps position changed by wind or some other means, the electronic compass in check the change in the angle in position and given to microcontroller which then controls the thrust motors and nullify the error.
Altitude sensor:
Even though the gps gives the idea about the height of the blimp, that value is not accurate. So a barometric pressure sensor(MEMS) is used to find the height of blimp with high precision.