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The construction revolution - Building a dream with the help of drones

The impact (good and bad) of drones in society is no longer in question. But what will it take for drones to impact a traditionally outdated, low-profit-margin civil works industry through the use of technology? The solution lies in a low-cost approach. One could say it all started when a bunch of scientists realized they could do a far better job in measuring objects accurately and at a distance rather then an individual putting himself in harm's way and using expensive/primitive equipment for the same task. We're talking about photogrammetry. In a nutshell (or should I say according to Wikipedia), Photogrammetry is the science of making measurements from photographs, especially for recovering the exact positions of surface points. In more simplistic terms, provided you have some form of frame of reference (like a ruler) you can determine the physical properties of objects and their exact location to the accuracy of the remote sensing equipment used (a 4K-size imag...

Saving Africa's Innovation

We've reviewed a report by Deloitte discussing issues on how to leverage and protect Africa's innovation for future growth and economic stability. It was highlighted that the traditional focus on exploiting commodities hasn't yielded the redistribution of wealth or improve the standard of living for those working in that sector. Moreover, over 75% of economic activities happen in the informal sector (Nigeria statistics), which is exposed to the volatility that commodity markets are subjected to, which is detrimental to the impoverished communities. One of the major points which directly relates to our mission objective is the following quote from the report: " Yet, as much as innovation is important, there needs to be more focus on the final outcome of innovative solutions. "  In Africa, innovation is part of the daily survival. But it's usually unstructured, very often short-sighted and localized in it's application. Moreover, the growing yout...

Review of Drones for Good Award - Message of Hope

We stumbled on the organization that's making head waves around the globe called Drones for Good Award . Although the coveted prize money is not openly advertised, various companies have participated over the past few years such as: PrecisionHawk , LoonCopter , Drones against Tsetse and many more. We were pretty impressed especially with LoonCopter. This is drone which is capable of air, surface and underwater navigation. The aim is mainly for search and rescue and the proof of concept was demonstrated at the award. But what's more fascinating is the culture and ethos this organization promotes. The idea that drones CAN be used for good and SHOULD be used for good. This is something we at Uav4africa believe immensely . The notion that you can use technology, whether in the air or under the sea, to uplift, educate and empower underprivileged communities is beyond a nice gesture, it's calling all of us should respond to. One of our projects is to investigate...

Folding arms on my quad - A game-changer

So i've been looking over the last few months how I can get to fly more of my quadcopter drone for both research and leisure. The major drawback of the 1.6kg drone is its form factor at the time. Being a H-frame quad with cross rotor length of over 80cm, I had to purchase 110L storage bin to keep it safe and damage-free. After much research I ended up a natural solution that would involved just a steel saw and good eye for detail. The other (obvious) requirement for this folding mechanism is that it should make the deployment time as fast as possible with a few if not no special equipment. This led the the solution of cutout the area around the second bolt of each arm to allow pivoting action on the first bolt. The cutout should also be such that bolt hole remains to be used as a stopper to maintain symmetry along the quad x and y axis. The high contact friction will be used to ensure the arms remain in the required position throughout a particular flight. After much sawing and...

Development of a new learning algorithm

Over the course of the past 2-3 weeks I decided to take the plunge of learning a new training algorithm which had quite alot of attention in the academic community but was also well constructed for easier implementation. The work by Peng et al on developing the Continuous Forward Algorithm (CFA) was my subject of attention. The overall premise behind implementing this algorithm was to investigate less memory-intensive machine learning algorithm that will not sacrifice accuracy or robustness. The ability to have a real-time learning system for low-cost electronics (such as the Teensy 3.6 ) has huge implications for the commercialization and affordable access of intelligent drones specifically for developing and even under-developed economies. The far-reaching impact of having technology leveraging efforts of farmers, herders, game rangers, biologists is the next wave of industrialization. This is the essence of this blog. The journey is very exciting and eventual results even mo...

Setup ArduPilot flight modes with DX6 Gen 2

Hi, I've looked around the web to get an understanding the setup of the Ardupilot flight modes with a Spektrum DX6 2nd generation and there was none. So I decided to write this blog. The few things to consider when doing this: Please follow the instruction given on the ardupilot webpage . Have the Pixhawk hardware connected to Mission Planner (I have 1.3.50 - Copter V3.5.3)  Use the display bar in the Radio Calibration page as a guide while changing the rate pulse widths on your transmitter. I've used switch D to change the pulse width ranges on channel 5.

More powerful Pixhawk 3 coming soon

Posted by Chris Anderson on April 25, 2017 at 7:00am  View Blog . The PX4/Dronecode team and Drotek have been working on the next generation of Pixhawk autopilots, and you can now see a preview of that with the Pixhawk 3 Pro . It's based on the new PX4 FMU4 Pro standard, which includes a full suite of next-generation sensors and and the more powerful STM32F469 processor. It's designed for the Dronecode/PX4 flight software, which is the current official Pixhawk standard. The board is currently in developer release, but will be taken out of beta after testing is complete in the next month or two. All details are  here  (and below): ------------------ Introduction FMUv4-PRO takes input from all of the Pixhawk stakeholders; end users, developers, researchers and manufacturing partners. Goals for this iteration of the platform are: – An integrated, single-board flight controller for space constrained applications – A modular multi-board flight controller for ...

Fast communication between two arduinos

Re: fast communication between two arduinos #9 Sep 07, 2015, 05:06 pm Thanks guys, At the end I re-Checked the I2C protocol and understood it can only pass Chars ether by array or singles and managed to work with the code from here: http://ift.tt/1DAeWM4 and created my version to pass a 4 digit code and it work quite fast (less than 1ms). // Wire Master Reader int x,y; #include <Wire.h> void setup() {   Wire.begin();        // join i2c bus (address optional for master)   Serial.begin(115200);  // start serial for output } void loop() {   Wire.requestFrom(2, 6);    // request 6 bytes from slave device #2      int a = Wire.read(); // receive a byte as character      int b = Wire.read(); // receive a byte as character      int c = Wire.read(); // receive a byte as character      int d = Wire.read(); // receive a byte as character ...

South Korea's National Standard on Drones

South Korea’s National Standard on Drones The Korean Agency for Technology & Standards (KATS) of the Ministry of Trade, Industry & Energy said that it announced the world’s first national standard on drones on December 30. The national standard has the title of KSW9000: Classification & Terms of Unmanned Aircraft Systems. It provides the definition of terms regarding 52 types of drones, such as large unmanned aircraft and remotely controlled drones, along with six categories of classification based on operating altitudes, maximum takeoff weights, kinetic energy, etc. According to the standard, drones can be classified into five categories based on their maximum takeoff weights, ranging from 2 kg or less to more than 600 kg. In addition, those with a dead weight of 150 kg or less are dubbed unmanned powered aerial vehicles, those with a dead weight of more than 150 kg and up to 600 kg are called midsize unmanned aircraft and the others are classified as large u...