In a world first, US scientists on Thursday piloted a camera-equipped ocean drone that looks like a robotic surfboard into a Category 4 hurricane barreling across the Atlantic Ocean.
Dramatic footage released by the National Oceanic and Atmospheric Administration showed the small craft battling 50-feet (15 meter) high waves and winds of over 120 mph (190 kph) inside Hurricane Sam.
The autonomous vehicle is called a “Saildrone” and was developed by a company with the same name.
In an interview with Reuters, Jaime Pereira, CEO of Aerocamaras, said “it’s the first time an animal is being rescued with a drone and the first time it has to be captured. If that’s the last option that the dogs have? Then we’re going after them.” Pereira also mentioned a possible nightmare scenario caused by the limitations of drone battery technology, and the tricky nature of the operation, which relies partly on the cooperation of the stranded canines: “What we don’t want is to run out of battery when flying over the lava,” he said. In order to carry out the mission as safely as possible, the drone operator is currently carrying out test flights to practice before sending its drones to the location near the live volcano.
Though this is likely the first time a dog has been carried to safety by a drone, operators in China guided a herd of wayward elephants home with the aid of drones. In that case, however, the drones were only used to keep track of the animals. The technology is also being trialed for first responder operations in the case of natural disasters and emergencies. Here’s hoping the novel method for extracting the otherwise inaccessible animals to safety goes off without a hitch.
Posted in drones, information science, robotics/AI
Smart image analysis algorithms, fed by cameras carried by drones and ground vehicles, can help power companies prevent forest fires.
“This speed bag resupply feature is a game changer for the warfighter,” said in a statement Mike Goodwin, sales and strategy manager Bell. “With the ability to drop supplies quickly and efficiently in a drop zone or a remote location, we can get critical supplies delivered as soon as they’re needed.”
Bell claims the APT has already flown 420 times at U.S. Marine Corps Air Station Yuma, in Georgia, and other sites. Now, the company is seeking to demonstrate how the aircraft can drop supplies on demand at its cruising speed of 80 mph (129 km/h).
For now, the vehicle’s main advantage is that it will simply drop the transported goods quickly near the location, allowing personnel to immediately retrieve supplies without needing to wait for aircraft to land and takeoff. This allows the drone to conserve battery power by minimizing hover time, extending its mission range and time, and increasing the chances the aircraft will survive.
German air taxi manufacturer Volocopter launched a self-developed heavy-duty drone in public for the first time on Tuesday at the ITS World Congress in Hamburg.
In cooperation with German logistics provider DB Schenker, the company demonstrated the integration of the VoloDrone into logistics supply chains.
The test flight, which lasted about three minutes, took place around the harbor area of the city in northern Germany. The ITS congress is an international digital transport event.
Thanks to artificial intelligence, drones can now fly autonomously at remarkably high speeds, while navigating unpredictable, complex obstacles using only their onboard sensing and computation.
This feat was achieved by getting the drone’s neural network to learn flying by watching a sort of “simulated expert” – an algorithm that flew a computer-generated drone through a simulated environment full of complex obstacles. Now, this “expert” could not be used outside of simulation, but its data was used to teach the neural network how to predict the best trajectory, based only on the data from the sensors.
Researchers at the California Institute of Technology (Caltech) have built a bipedal robot that combines walking with flying to create a new type of locomotion, making it exceptionally nimble and capable of complex movements.
Part walking robot, part flying drone, the newly developed LEONARDO (short for LEgs ONboARD drOne, or LEO for short) can walk a slackline, hop, and even ride a skateboard. Developed by a team at Caltech’s Center for Autonomous Systems and Technologies (CAST), LEO is the first robot that uses multi-joint legs and propeller-based thrusters to achieve a fine degree of control over its balance.
“We drew inspiration from nature. Think about the way birds are able to flap and hop to navigate telephone lines,” explained Soon-Jo Chung, Professor of Aerospace and Control and Dynamical Systems. “A complex yet intriguing behaviour happens as birds move between walking and flying. We wanted to understand and learn from that.”
It’s piloting the new delivery model in Logan, Queensland.
Alphabet subsidiary Wing has launched a pilot program that will have its drones fly products from the rooftops of shopping centers. In fact, it has already started the program in its biggest market, Logan, Australia. The subsidiary has teamed up with Australian retail property group, Vicinity Centres, to test the new model at Logan’s Grand Plaza, where Wing’s drones have been flying orders to customers from businesses directly below their launching pad.
Wing has been operating in Logan over the past two years, but up until now, businesses have had to co-locate their products at the company’s delivery facility. This is the first time the subsidiary is conducting deliveries from participating merchants’ existing location instead. Wing has been flying its drones from the rooftop of Grand Plaza since mid-August, delivering sushi, bubble tea, smoothies and other products from merchants in the shopping center. Starting today, the drones will also deliver over-the-counter medicine and personal care and beauty products.
Within the first six weeks of operating from the Grand Plaza, Wing’s drones have already made 2,500 deliveries to several Logan suburbs. The Alphabet company plans to expand not just its partner merchants in the center, but also its delivery coverage area. Jesse Suskin, Wing’s Head of Policy & Community Affairs in Australia, also said that if the Grand Plaza pilot is successful, the company can “potentially roll out similar models in other locations across Vicinity Centres’ retail property portfolio.”
One of the most critical aspects of SpaceX’s quest for the reusability of its space hardware is the recovery of its booster. To achieve this, SpaceX decided to land its boosters on the sea. However, the boosters land on large drone ships to prevent losing the booster and transport it back to land.
After many successful landings and recovery of the boosters, the large and dependable drone ships have become a vital link in SpaceX’s dream to make space travel affordable. SpaceX recently added another drone ship to the pair it had in service.
Join us as we explore SpaceX’s insane new drone ship!
To the armchair engineer, landing a rocket in the sea is suicide as many things can go wrong. To start with, when floating on the sea, the drone ship or barge is small compared to all the land available for the booster to land on.
Compounding the problem is that the drone ship itself can be rocked about on the sea, more than 300 km off the coast.
So, combining the size and instability of the drone ship, the booster can miss the drone ship and crash into the sea, making it harder or even impossible to recover.
However, many things have gone wrong as SpaceX tried to land a rocket on land, with several boosters crashing and bursting into flames.
Apart from that, SpaceX has very good reasons to prefer a sea landing for its boosters, and the reason has to do with fuel.
Fuel is a critical component on any mission because the engineers have to balance carrying enough quantity of it and keeping the rocket as light as possible. As you can imagine, the Falcon 9 rockets are heavy, at more than half a million kilograms which means fuel is a premium.
This is how it breaks down:
When you launch to space and the booster returns, you need to slow down the speed from more than 8,000 km/h down to zero. This is done by reigniting the engine, and it requires fuel.
The fuel has to come from the leftover after boosting the upper stage.
This is where it gets interesting.
If you blasted a payload to low orbit, for example, you would have more than enough fuel for the landing. However, if the mission was destined for beyond Earth’s orbit, you will need more fuel because you have to launch faster. This will leave you with no fuel for the landing.
This will be a big blow to SpaceX’s dream of reusing its boosters. Recall that the company wants to launch missions to Mars, which will require lots of fuel to attain the speed necessary for launch but not enough fuel for landing.
However, there is a way out of this problem with the aid of geography.
When SpaceX launches from Florida, the rocket heads East over the Atlantic Ocean. So making the rocket land at sea and not having to return to the launch site will reduce the fuel required because the distance is shorter.
This means for more ambitious launches, it makes sense for SpaceX to land on the sea.
As Musk put it at a conference, “For half our missions, we will need to land out to sea. Anything beyond Earth is likely to need to land on the ship.”
Now, what motivation does SpaceX have to land and reuse its boosters?
The motivation is money. SpaceX wants to save money on its launches, and refurbishing a rocket saves time and costs a fraction of building a new one.
Just how much money is SpaceX saving?
We might never get an actual figure because it is a trade secret, but it is a play on several factors.
For example, to save some fuel for landing, it means you have to reduce your payload. For the Falcon 9 that means a reduction of up to 40 percent in revenue, according to Musk’s tweet:
Payload reduction due to reusability of booster & fairing is <40% for F9 & recovery & refurb is <10%, so you’re roughly even with 2 flights, definitely ahead with 3
— Elon Musk (@elonmusk) August 19, 2020
Recovery and refurbishment costs take another 10 percent. So after two flights, SpaceX breaks even.
The savings is more or less limitless as Musk claims the rocket can fly more than 100 times.
Interestingly, Musk was responding to a tweet that stated United Launch Alliance claimed a booster had to fly ten times for reusability to make economic sense. This shows the difference in economics between the two companies, despite being in the same industry.
However, landing at sea and recovering the booster would not be possible without the quiet heroes that are SpaceX’s barges or drone ships.
There were two in operation before a third joined this year. All have names you would have to get used to if you are not a fan of science fiction, i.e., Of Course I Still Love You, OCISLY, Just Read The Instructions, and A Shortfall Of Gravitas.
Each of these massive drone ships is the size of a football field.
The first drone ship was Of Course I Still Love You, which entered use in 2015. It supported launches from Florida by operating off the east coast of the US. However, it has since moved to the west coast after a new barge joined the fleet.
