How Squishy Robotics created a robot that can be safely dropped out of a helicopter

How Squishy Robotics created a robot that can be safely dropped out of a helicopter

8:53pm, 18th April, 2019
If you want to build a robot that can fall hundreds of feet and be no worse the wear, legs are pretty much out of the question. The obvious answer, then, is a complex web of cable-actuated rods. Obvious to anyway, whose robots look delicate but are in fact among the most durable out there. The startup has been operating more or less in stealth mode, emerging publicly today onstage at our Robotics + AI Sessions event in Berkeley, Calif. It began, co-founder and CEO Alice Agogino told me, as a project connected to NASA Ames a few years back. “The original idea was to have a robot that could be dropped from a spacecraft and survive the fall,” said Agogino. “But I could tell this tech had earthly applications.” Her reason for thinking so was learning that first responders were losing their lives due to poor situational awareness in areas they were being deployed. It’s hard to tell without actually being right there that a toxic gas is lying close to the ground, or that there is a downed electrical line hidden under a fallen tree, and so on. Robots are well-suited to this type of reconnaissance, but it’s a bit of a Catch-22: You have to get close to deploy a robot, but you need the robot there to get close enough in the first place. Unless, of course, you can somehow deploy the robot from the air. This is already done, but it’s rather clumsy: picture a wheeled bot floating down under a parachute, missing its mark by a hundred feet due to high winds or getting tangled in its own cords. “We interviewed a number of first responders,” said Agogino. “They told us they want us to deploy ground sensors before they get there, to know what they’re getting into; then when they get there they want something to walk in front of them.” Squishy’s solution can’t quite be dropped from orbit, as the original plan was for exploring Saturn’s moon Titan, but they can fall from 600 feet, and likely much more than that, and function perfectly well afterwards. It’s all because of the unique “tensegrity structure,” which looks like a game of pick-up-sticks crossed with cat’s cradle. (Only use the freshest references for you, reader.) If it looks familiar, you’re probably thinking of the structures famously studied by Buckminster Fuller, and they’re related but quite different. This one had to be engineered not just to withstand great force from dropping, but to shift in such a way that it can walk or crawl along the ground and even climb low obstacles. That’s a nontrivial shift away from the buckyball and other geodesic types. “We looked at lots of different tensegrity structures — there are an infinite number,” Agogino said. “It has six compressive elements, which are the bars, and 24 other elements, which are the cables or wires. But they could be shot out of a cannon and still protect the payload. And they’re so compliant, you could throw them at children, basically.” (That’s not the mission, obviously. But there are in fact children’s toys with tensegrity-type designs.) Inside the bars are wires that can be pulled or slackened to cause to move the various points of contact with the ground, changing the center of gravity and causing the robot to roll or spin in the desired direction. A big part of the engineering work was making the tiny motors to control the cables, and then essentially inventing a method of locomotion for this strange shape. “On the one hand it’s a relatively simple structure, but it’s complicated to control,” said Agogino. “To get from A to B there are any number of solutions, so you can just play around — we even had kids do it. But to do it quickly and accurately, we used machine learning and AI techniques to come up with an optimum technique. First we just created lots of motions and observed them. And from those we found patterns, different gaits. For instance if it has to squeeze between rocks, it has to change its shape to be able to do that.” The mobile version would be semi-autonomous, meaning it would be controlled more or less directly but figure out on its own the best way to accomplish “go forward” or “go around this wall.” The payload can be customized to have various sensors and cameras, depending on the needs of the client — one being deployed at a chemical spill needs a different loadout than one dropping into a radioactive area, for instance. To be clear, these things aren’t going to win in an all-out race against a Spot or a wheeled robot on unbroken pavement. But for one thing, those are built specifically for certain environments and there’s room for more all-purpose, adaptable types. And for another, neither one of those can be dropped from a helicopter and survive. In fact, almost no robots at all can. “No one can do what we do,” Agogino preened. At a recent industry demo day where robot makers showed off air-drop models, “we were the only vendor that was able to do a successful drop.” And although the tests only went up to a few hundred feet, there’s no reason that Squishy’s bots shouldn’t be able to be dropped from 1,000, or for that matter 50,000 feet up. They hit terminal velocity after a relatively short distance, meaning they’re hitting the ground as hard as they ever will, and working just fine afterwards. That has plenty of parties interested in what Squishy is selling. The company is still extremely small and has very little funding: mainly a $500,000 grant from NASA and $225,000 from the . But they’re also working from UC Berkeley’s Skydeck accelerator, which has already put them in touch with a variety of resources and entrepreneurs, and the upcoming May 14 demo day will put their unique robotics in front of hundreds of VCs eager to back the latest academic spin-offs. You can keep up with the latest from the company , or of course this one.
OneWeb’s first six global internet satellites are safely in orbit

OneWeb’s first six global internet satellites are safely in orbit

7:38pm, 27th February, 2019
Update: Launch and deployment successful! After four years and more than $2 billion in funding, OneWeb is ready to launch the first six satellites out of a planned constellation of 650 with which it plans to blanket the world in broadband. The Arianespace-operated Soyuz rocket will take off at 1:37 Pacific time from Guiana Space Center. . is one of several companies that aims to connect the world with a few hundred or thousand satellites, and certainly the most well-funded — SoftBank is the biggest investor, but Virgin Group, Coca-Cola, Bharti Group, Qualcomm and Airbus have all chipped in. The company’s plan is to launch a total of 900 (650 at first) satellites to about a 1,100-kilometer low Earth orbit, from which it says it will be able to provide broadband to practically anywhere on Earth — anywhere you can put a base station, anyway. Much cheaper and better than existing satellite connectivity, which is expensive and slow. Sound familiar? Of course, SpaceX’s side project, Starlink, has similar ambitions, with an planned, and is aiming for a smaller constellation of smaller satellites for low-cost access. And Ubiquitilink just announced this week that its unique technology will remove the need for base stations and . And they’ve all launched satellites already! The launch vehicle fueling today at GSC. OneWeb has faced numerous delays; the whole constellation was originally planned to be in place by the end of 2019, which is impossible at this point. But delays are the name of the game in ambitious space-based businesses, and OneWeb hasn’t been just procrastinating — it has been girding itself for mass production, raising funds to set up launch contracts and improving the satellites themselves. Its updated schedule, as it states in the mission summary: “OneWeb will begin customer demos in 2020 and provide global, 24-hour coverage to customers in 2021.” At a reported cost of about a million dollars per satellite — twice the projected cost in 2015 — just building and testing the constellation will likely rub up against a billion dollars, and that’s not counting launch costs. But no one ever said it would be cheap. In fact, they probably said it would be unbelievably expensive. That’s why and the other investors are “committing to a lot more capital,” as CEO Adrián Steckel last month. The company also announced its first big deal with a telecom; Talia, which provides connectivity in Africa and the Middle East, signed on to use OneWeb’s services starting in 2021. Soyuz launches could carry more than 30 of these satellites each, meaning it would take at least 20 to put the whole constellation in orbit. This first launch, however, only has six aboard; the other spots on board the mass launch system have dummy payloads to simulate how it should be going forward. A OneWeb representative told me that this launch is meant to “verify the satellite design and validate the end to end system,” which is probably a good idea before sending up 600 more. That means OneWeb will be testing and tracking these six birds for the next few months and making sure the connection with ground stations and other aspects of the whole system are functioning properly. Full payloads will start in the fall, after OneWeb opens its (much-delayed) production facility just outside Kennedy Space Center in Florida. .