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Manned systems Edit

Instead of a fully functional UAV system develop a manned system with stability systems and real time feedback to the pilot. That can be done at a fraction of the cost of a UAV - AND with products already out in the RC world. A long range radio system with dual 3CCD cameras for eyes - there's your depth perception for navigating visually - and still room for the payload. The CCD can be used at night to spot the horizon for manual wing leveling control. A ThermalImagingCameras is used for night time surveillance.

Thermopiles(RateGyro2, and/or commercial IMU(RateGyro, allows periods of automatic flight reducing considerably pilot workload. The automatic flight control systems don't function 100% the time ,thus the need for manual override to control the plane should the IMU systems malfunction.

The range of the craft is limited by what type of radio link is used to stream back a real-time video feed. Reverse engineer the analogue transmitters (RadioModems, on 800Mhz via BoMarc so that a more powerful transmitter can be built. The cameras used will be SerialCameras,, Mpeg4Compression, and CctvCameras.

The ideal transmission link would be a FpGa SoftwareDefinedRadio or WiMax system to which an embedded Mpeg4Compression is connected.

UAV with Wimax combination Edit

Fully autonomous UAVs don't yet exist. is about the closest to 95% uptime we are achieving. In 5% of cases manual intervention would be needed. India must install WiMax stations in Naxal, cover the whole place in dense bandwidth, which will allow FPV flight control when the IMU systems fails.

Terrorist insurgents are defeated by protecting these Wimax towers or even using the airborn wimax option from aerovironment.

Quadro manned Edit does automatic take-off and landing using image analysis. Fit it with a 0.003 CCD Watec camera and illuminate the area with a laser diode 880nm focused through a dispersion lens for night vision upto 150m - InfraRedLeds#Long_range_IR_illumination. Or use BlimpLinks which can carry a great payload. With laser illumination a 0.003 CCD camera is used for night vision at a hight of 150m. Or flood an area to monitor with InfraRedLeds or 880nm lasers. The 0.003Lux CCD camera will then see in the dark. Connect a 802.11b mini-socket iWi-Fi module ($50) to a SerialCameras( module for an low power consuming video transmission link. Interface with a quadrocopter RateGyro2. Place an antenna tracking system on a model UAV to aim a small Yagi antenna to the ground station. The ground station in turn tracks the UAV with a Yagi antenna -

* PDF paper

I was thinking of using these modules with [url][/url] does automatic take-off and landing using image analysis on a red dot. . Fit it with a 0.003 CCD Watec camera and illuminate the area with a laser diode 880nm focused through a dispersion lens for night vision upto 150m. Or use [url][/url] which can carry a greater payload.

With laser illumination a 0.003 CCD camera is used for night vision at a hight of 150m. Or flood an area to monitor with InfraRedLeds or 880nm lasers. The 0.003Lux CCD camera will then see in the dark. The trick is compressing the analogue video stream with some sort of Mpeg4 compression system such as FPGA as per [url][/url] and keeping the power consumption low. The payload of a quodrocopter is around 1kg for 10min flight, thus these components will fit. Ideally we should use a thermal imaging camera module as they use in Lexus and BMW systems , but these cost around R30000.

Now take this quadrocopter and automatically exchange its battery using a robot arm contraption every 15min as it comes back automatically to its base landing on the red dot as per the Texas Inst. image analysis software from [url][/url]. It flies up into the air from from your lawn and provides a view of you house from lets say 100meters in the air. As you approach your home a GPS/GPRS signal is sent and the quodrocopter streams live images of whatever might be waiting to kill you in your garden. You can imagine the privacy invasion issues of a technology like this, which you can't hear nor see. It is virtually invisible. One could even fit a rocket to the quadrotor and do precision target elimination. We can mass produce the [url][/url] copters because everything there is opensource, the PCB's we reverse engineer. Should bring construction and production cost of one quadrocopter down to R3000 per unit.

We could have a situation where the quadrocopters hovers permanently at 100 meters scouting an area 300mx300m over any zone, protecting macadamia trees, residents , Spoornet tracks, garages anything. The key is to use your imagination.....

I am pleased that you find this stuff fascinating. :) Here is another idea: Embed the latest breakthrough in facial recognition( from on to an FPGA system.

Now fly this quadrocopter towards your target inside a group of people. The quad will seek out his face fly towards him ...... and out pops a flag with the words....bang!

Lets say your favorite politician is making a speech at a stadium, drop the quadrotor from a model plane flying at a hight of 10km , with the model plane at 10km providing an uplink on say a secret HZ such as 673Mhz using Software defined radio( FPGA module doing DSSS 802.11b on this frequency and not 2.4ghz . The politician is on a stand and the quadrotor does facial recognition. Just before flying into him pops out a water pistol and squirts him with water! Think about that for a few minutes, the implication of where all stuff is going.

A counter measure to this would be the UAV collision avoidance software which scouts for planes not to crash in. Stellenbosh prof. did his MIT research on such a system. Combine this with 5ghz radar and a ground based missile defense system to shoot down any UAV quadrotors. Or deploy your own quadrotor armed with missile systems to intercept and destroy any incoming UAVs.

Automated horizon finding Edit Finds the horizon using a camera and algorithm

Semi-autmatic control Edit

On loss of RateGyro2 pyrometer or RateGyro IMU automatic control the pilot manually keeps the wings level using the real-time video feed. The UAV is steered by the rudder and GPS to follow the way-points. Altitude and way-point navigation is stil maintained with the GPS and altimeter. See the RCAP project under RateGyro2 for rudder steering code and control of plane. The Aruino project provides more stable code.

Place one UAV every 3km Edit

Place one manned UAV every 3km accross Gauteng to respond to incidents 24hours a day. Install an EmbeddedPc in your vehicle. As you arrive from work a manned UAV will hover above the residence and relay a real-time image to the vehicle.

Dr.Don Edit A simple and cost effective way of having two cameras is to multiplex the two video feeds and only have one video transmitter. You can switch between the two systems via a command from the data link. Rarely do you use both visual and IR spectra cameras at the same time.

Data links: Digi 9XTend Video links: (multiple available @ 900MHz and 2.4 GHz)

Regards, Dr. Don


Use RCAP from RateGyro2 to implement a manned system. The RCAP steers the rudder as it pilots the plane from way-point to way-point and automatically keeps it at the correct altitude while the RadioControlHobbyist] manually keeps the wings level. With RadioModems, GpsAndGprs or WiMax the way-points are updated in real-time.

links Edit


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