Philips Hue is rolling out MotionAware, a new feature that turns its smart bulbs into motion sensors using radio-frequency (RF) Zigbee signals. The upgrade works with most Hue bulbs made since 2014, but requires the new $99 Bridge Pro hub to enable. The Verge reports: To create a MotionAware motion-sensing zone, you need Hue's new Bridge Pro and at least three Hue devices in a room. It works with all new and most existing mains-powered Hue products via a firmware update. That includes smart bulbs, light strips, and fixtures. Portable devices, such as the Hue Go or Table Lamp, and battery-powered accessories, such as Hue switches, aren't compatible. Neither is Hue's current smart plug. [...] "All of the functionality you get with our physical motion sensors -- including turning on when motion is detected or off when there's been no movement for a certain amount of time -- can be configured on motion-aware motion events," says George Yianni, Hue CTO and founder, in an interview with The Verge. "We've done something that's quite a lot better than what else is out there."

MotionAware is occupancy sensing, not presence sensing; it requires movement. Yianni says it's comparable to the passive infrared sensing (PIR) Hue's physical sensors use. This means it can be triggered by pets or other motion. A sensitivity slider in the app helps fine-tune detection. According to Yianni, a key benefit over PIR is that a MotionAware zone can cover a larger area than a single PIR sensor, and it's also not limited to line of sight. MotionAware can't sense light levels, which Hue Motion Sensors can, but you can pair a light sensor to a motion zone to feed it that data. The positioning of the lights will also play a role in determining the effectiveness of the motion sensing. "We recommend that the lights surround an area which will roughly define the detection area in which motion will be detected," says Yianni. "It will sense around the lights and in the broader room thanks to reflections, but detection reliability will depend on lots of factors."

Beyond lighting automation, MotionAware can also integrate with Hue Secure, Hue's DIY security platform that includes cameras, contact sensors, and a new video doorbell. Motion detection can trigger lights to flash red, activate Hue's new plug-in chime/siren, and send an alert to your phone with a button to call emergency services. [...] MotionAware is built on RF sensing -- a technology that uses wireless signals to "see" a space and detect disruptions within it. The data is then sent to the Bridge Pro, where AI algorithms are applied to figure out what is causing those disruptions, so the system can act accordingly. This is why it's limited to the Bridge Pro, the V2 bridge isn't powerful enough to run those algorithms, says Yianni.

The mysterious X-37B space-plane — the U.S. military's orbital test vehicle — "serves partly as a platform for cutting-edge experiments," writes Space.com

And "one of these experiments is a potential alternative to GPS that makes use of quantum science as a tool for navigation: a quantum inertial sensor." This technology could revolutionize how spacecraft, airplanes, ships and submarines navigate in environments where GPS is unavailable or compromised. In space, especially beyond Earth's orbit, GPS signals become unreliable or simply vanish. The same applies underwater, where submarines cannot access GPS at all. And even on Earth, GPS signals can be jammed (blocked), spoofed (making a GPS receiver think it is in a different location) or disabled — for instance, during a conflict... Traditional inertial navigation systems, which use accelerometers and gyroscopes to measure a vehicle's acceleration and rotation, do provide independent navigation, as they can estimate position by tracking how the vehicle moves over time... Eventually though, without visual cues, small errors will accumulate and you will entirely lose your positioning...

At very low temperatures, atoms obey the rules of quantum mechanics: they behave like waves and can exist in multiple states simultaneously — two properties that lie at the heart of quantum inertial sensors. The quantum inertial sensor aboard the X-37B uses a technique called atom interferometry, where atoms are cooled to the temperature of near absolute zero, so they behave like waves. Using fine-tuned lasers, each atom is split into what's called a superposition state, similar to Schrödinger's cat, so that it simultaneously travels along two paths, which are then recombined.

Since the atom behaves like a wave in quantum mechanics, these two paths interfere with each other, creating a pattern similar to overlapping ripples on water. Encoded in this pattern is detailed information about how the atom's environment has affected its journey. In particular, the tiniest shifts in motion, like sensor rotations or accelerations, leave detectable marks on these atomic "waves". Compared to classical inertial navigation systems, quantum sensors offer orders of magnitude greater sensitivity. Because atoms are identical and do not change, unlike mechanical components or electronics, they are far less prone to drift or bias. The result is long duration and high accuracy navigation without the need for external references.

The upcoming X-37B mission will be the first time this level of quantum inertial navigation is tested in space.
The article points out that a quantum navigation system could be crucial "for future space exploration, such as to the Moon, Mars or even deep space," where autonomy is key and when signals from Earth are unavailable.

"While quantum computing and quantum communication often steal headlines, systems like quantum clocks and quantum sensors are likely to be the first to see widespread use."

An anonymous reader quotes a report from Ars Technica: The robot built by [Yuntao Ma and his team at ETH Zurich] was called ANYmal and resembled a miniature giraffe that plays badminton by holding a racket in its teeth. It was a quadruped platform developed by ANYbotics, an ETH Zurich spinoff company that mainly builds robots for the oil and gas industries. "It was an industry-grade robot," Ma said. The robot had elastic actuators in its legs, weighed roughly 50 kilograms, and was half a meter wide and under a meter long. On top of the robot, Ma's team fitted an arm with several degrees of freedom produced by another ETH Zurich spinoff called Duatic. This is what would hold and swing a badminton racket. Shuttlecock tracking and sensing the environment were done with a stereoscopic camera. "We've been working to integrate the hardware for five years," Ma said.

Along with the hardware, his team was also working on the robot's brain. State-of-the-art robots usually use model-based control optimization, a time-consuming, sophisticated approach that relies on a mathematical model of the robot's dynamics and environment. "In recent years, though, the approach based on reinforcement learning algorithms became more popular," Ma told Ars. "Instead of building advanced models, we simulated the robot in a simulated world and let it learn to move on its own." In ANYmal's case, this simulated world was a badminton court where its digital alter ego was chasing after shuttlecocks with a racket. The training was divided into repeatable units, each of which required that the robot predict the shuttlecock's trajectory and hit it with a racket six times in a row. During this training, like a true sportsman, the robot also got to know its physical limits and to work around them.

The idea behind training the control algorithms was to develop visuo-motor skills similar to human badminton players. The robot was supposed to move around the court, anticipating where the shuttlecock might go next and position its whole body, using all available degrees of freedom, for a swing that would mean a good return. This is why balancing perception and movement played such an important role. The training procedure included a perception model based on real camera data, which taught the robot to keep the shuttlecock in its field of view while accounting for the noise and resulting object-tracking errors.

Once the training was done, the robot learned to position itself on the court. It figured out that the best strategy after a successful return is to move back to the center and toward the backline, which is something human players do. It even came with a trick where it stood on its hind legs to see the incoming shuttlecock better. It also learned fall avoidance and determined how much risk was reasonable to take given its limited speed. The robot did not attempt impossible plays that would create the potential for serious damage -- it was committed, but not suicidal. But when it finally played humans, it turned out ANYmal, as a badminton player, was amateur at best. The findings have been published in the journal Science Robotics.

You can watch a video of the four-legged robot playing badminton on YouTube.

At the Snapdragon Tech Summit 2021 yesterday, Qualcomm introduced their new always-on camera capabilities in the Snapdragon 8 Gen 1 processor, which is expected to arrive in high-end Android phones early next year. The company says this new feature will let users wake and unlock their phone without having to pick it up or have it instantly lock when it no longer sees their face. Even though Judd Heape, Qualcomm Technologies vice president of product management, said that the "always-on camera data never leaves the secure sensing hub while it's looking for faces," it raises a serious privacy concern that "far outweighs any potential convenience benefits," argues The Verge's Dan Seifert. From the report: Qualcomm is framing the always-on camera as similar to the always-on microphones that have been in our phones for years. Those are used to listen for voice commands like "Hey Siri" or "Hey Google" (or lol, "Hi Bixby") and then wake up the phone and provide a response, all without you having to touch or pick up the phone. But the key difference is that they are listening for specific wake words and are often limited with what they can do until you do actually pick up your phone and unlock it. It feels a bit different when it's a camera that's always scanning for your likeness.

It's true that smart home products already have features like this. Google's Nest Hub Max uses its camera to recognize your face when you walk up to it and greet you with personal information like your calendar. Home security cameras and video doorbells are constantly on, looking for activity or even specific faces. But those devices are in your home, not always carried with you everywhere you go, and generally don't have your most private information stored on them, like your phone does. They also frequently have features like physical shutters to block the camera or intelligent modes to disable recording when you're home and only resume it when you aren't. It's hard to imagine any phone manufacturer putting a physical shutter on the front of their slim and sleek flagship smartphone.

Lastly, there have been many reports of security breaches and social engineering hacks to enable smart home cameras when they aren't supposed to be on and then send that feed to remote servers, all without the knowledge of the homeowner. Modern smartphone operating systems now do a good job of telling you when an app is accessing your camera or microphone while you're using the device, but it's not clear how they'd be able to inform you of a rogue app tapping into the always-on camera. [...] But even if it's not found in every phone next year, the mere presence of the feature means that it will be used by someone at some point. It sets a precedent that is unsettling and uncomfortable; Qualcomm may be the first with this capability, but it won't be long before other companies add it in the race to keep up. Maybe we'll just start having to put tape on our smartphone cameras like we already do with laptop webcams.

At the 254th National Meeting and Exposition of the American Chemical Society, researchers are presenting a low-cost, portable, paper-based sensor that can let you know when to toss food and cosmetics. The sensor can detect antioxidants in tea and wine, and be used to explore remote locations, such as the Amazon rainforest, in search of natural sources of antioxidants. "I've always been interested in developing technologies that are accessible to both industry and the general population," Silvana Andreescu, Ph.D., says. "My lab has built a versatile sensing platform that incorporates all the needed reagents for detection in a piece of paper. At the same time, it is adaptable to different targets, including food contaminants, antioxidants and free radicals that indicate spoilage." Phys.Org reports: What sets Andreescu's sensors apart from others, she says, are the nanostructures they use to catch and bind to compounds they're looking for. "Most people working on similar sensors use solutions that migrate on channels," Andreescu says. "We use stable, inorganic particles that are redox active. When they interact with the substances we want to detect, they change color, and the intensity of the change tells us how concentrated the analyte is." Additionally, because all of the reagents needed to operate the device are incorporated in the paper, users don't need to add anything other than the sample being tested. The American Chemical Society has published a video detailing the sensor. Their paper has been published in the journal Analyst.

An anonymous reader shares an article on Fast Co Design (edited and condensed for clarity): Researchers at University of Washington's Sensor Lab have created the WISP, or Wireless Identification and Sensing Platform: a combination sensor and computing chip that doesn't need a battery or a wired power source to operate. Instead, it sucks in radio waves emitted from a standard, off-the-shelf RFID reader -- the same technology that retail shops use to deter shoplifters -- and converts them into electricity. The WISP isn't designed to compete with the chips in your smartphone or your laptop. It has about the same clock speed as the processor in a Fitbit and similar functionality, including embedded accelerometers and temperature sensors. [...] It has about the same bandwidth as Bluetooth Low Energy mode, the wireless power-sipping technology which drives most Bluetooth speakers and wireless headphones.

Eloking writes: Google and a San Francisco-based Aclima have equipped Google's Street View cars with environmental sensors in order to map urban air quality. The project aims to create high resolution maps of air quality across cities by measuring carbon dioxide, carbon monoxide, particulate matter, Volatile Organic Compounds, and other pollutants. “We have a profound opportunity to understand how cities live and breathe in an entirely new way by integrating Aclima’s mobile sensing platform with Google Maps and Street View cars,” said Davida Herzl, co-founder and CEO of Aclima. “With more than half of the world’s population now living in cities, environmental health is becoming increasingly important to quality of life. Today we’re announcing the success of our integration test with Google, which lays the foundation for generating high resolution maps of air quality in cities.”

RocketAcademy writes "Arduino, the popular open-source microcontroller board, is powering a revolution in low-cost space-mission design. San Francisco-based Planet Labs, a spinoff of NASA's PhoneSat project, has raised $13 million to launch a flock of 28 Arduino-based nanosatellites for remote sensing. Planet Labs launched two test satellites this spring; Flock-1 is scheduled to launch on an Orbital Sciences Antares rocket in 2014. NanoSatisifi, also based in San Francisco-based company, is developing the Arduino-based ArduSat, which carries a variety of sensors. NanoSatisifi plans to rent time on ArduSats to citizen scientists and experimenters, who will be able upload their own programs to the satellites. The first ArduSat is scheduled for launch August 4 on a Japanese H-II Transfer Vehicle carrying supplies to the International Space Station. The cost of orbital launches remains a limiting factor, however. As a result, Infinity Aerospace has developed the Arduino-based ArduLab experiment platform, which is compatible with new low-cost suborbital spacecraft as well as higher-end systems such as the International Space Station. The non-profit Citizens in Space has purchased 10 flights on the XCOR Lynx spacecraft, which will be made available to the citizen-science community. Citizens in Space is looking for 100 citizen-science experiments and 10 citizen astronauts to fly as payload operators. To help spread the word, it is holding a Space Hacker Workshop in Dallas, Texas on July 20-21. Infinity Aerospace will be on hand to teach Arduino hardware and software."

Earlier this month you asked Principal Scientist at the BAE Systems Advanced Technology Centre, Dr. Ramsey Faragher, about his NAVSOP navigation system and the future of positioning systems in general. Below you'll find his answers.

Muad writes "Maik Schmidt is our guide in the Pragmatic Bookshelf's venture into the world of electronics. This is a compact work, like all others in the series, it goes straight to applicable examples and makes you get your hands dirty with real work. The Arduino platform has been described in many ways, but the best I have heard so far insightfully labels it 'The 555 of the future,' referring to the ubiquitous timer chip so many simple electronic projects make use of. If you haven't been hiding under a rock for the past few years, you have doubtlessly seen the plethora of material on the subject that's out there: even O'Reilly, which usually does not ship multiple titles on a single subject, has a variety of them. Most of these works are rather similar, the ones I prefer are Massimo Banzi's Getting Started with Arduino (O'Reilly, 2008), by one of the original developers of the platform, and the strongly related Getting started with Processing by Casey Reas and Ben Fry. These are brief books in the 100-page range, not exhaustive works, but covering the core philosophy and basic operation of the tools is sometimes the best way to jump into a new subject. Read below the rest of Federico's review

HizookRobotics writes "The Bilibot Project, an open-source robot platform based on Microsoft's Kinect, was just announced by MIT researcher Garratt Gallagher on Hizook.com. Bilibot is just the first in what will likely be a torrent of robots (both hobbyist and professional) utilizing the Kinect. This sentiment was echoed in an essay by Fred Nikgohar, CEO of RoboDynamics, who believes we've reached a watershed moment in robotics enabled by cheap 3D sensing. While much of the attention for the Kinect has focused on video gaming, perhaps robotics will be its greatest beneficiary."

MojoKid writes "Samsung is betting there's room for more in the smartphone market and has unveiled its new bada OS. The name 'bada,' means 'ocean' in Korean and was chosen to convey the 'limitless variety of potential applications which can be created using the new platform.' Samsung claims the OS is extremely simple for developers, saying that bada was built to be extremely interactive with its users — including flash control, motion sensing, fine-tuned vibration control and face detection. Samsung is hoping developers will take this user interface and create a variety of applications focused around it, and thus provide different types of apps than exist for the iPhone and Android OS. The bada OS has a variety of sensors, including accelerometers, tilt, weather, proximity and activity. Samsung will be hosting a series of Developer Days in Seoul, London and San Francisco, among other cities, throughout 2010."

Michael J. Ross writes "Of the leading content management systems used by developers for creating websites, Drupal is highly regarded for many characteristics, including a much smaller initial footprint, compared to Joomla and other CMSs. Yet some developers find this a disadvantage as well, because one of the most common criticisms leveled against Drupal is its lack of built-in support for images and multimedia elements — thereby forcing new Drupal developers to choose from the thousands of contributed Drupal modules those that would be optimal for implementing their websites' multimedia functionality. Aaron Winborn's book Drupal Multimedia is intended as a guide to help such developers." Keep reading for the rest of Michael's review.

already-living-in-a-virtual-world writes "On his blog, mispeled writes about a new type of game he'd like to see for the iPhone. It's interesting stuff: '... the integration of a true gaming platform with the capabilities of a phone is unique, at least for the quality of the gaming experience offered. For all intents and purposes, the iPhone is a new system. And new systems demand that new gameplay mechanics be explored. For a long time I've been a fan of the MMORPG genre, and the iPhone offers several MMO-type games, especially those in the facebook, social-networking style. However, what I've yet to see is a game that takes advantage of the iPhone's location services, the GPS-like capability of the phone. Tons of applications use it, but no games, as far as I've seen. Why not? Motion sensing is all the rage on the consoles — the Wii popularized it, but now Microsoft and Sony are jumping on the bandwagon. But the iPhone, because it's portable, offers something more. And I want those offerings taken advantage of. I want to play an MMO that knows where I am and links my physical location to a virtual location. I want to create a game that gives the planet Earth a virtual overlay, interactable via a mobile (read: the iPhone) interface.'"

Anonymous writes "Engineering students at Duke University have taken advantage of the accelerometers in emerging cell phones to create an application that permits users to write short notes in the air with their phone, and have that note automatically sent to an e-mail address. The 'PhonePoint Pen' can be held just like a pen, and words can be written on an imaginary whiteboard. With this application a user could take a picture with a phone camera, and annotating it immediately with a short caption. Duke Computer Engineering Professor Romit Roy Choudhury said that his research group is envisioning mobile phones as just not a communication device, but a much broader platform for social sensing and human-computer interaction. Such interactivity has also emerged in the work of other research groups, such as MIT's Sixth Sense project, Dartmouth's MetroSense project, and Microsoft Research's NeriCell project, to name a few."

C&VG offers up some news on Microsoft's next-gen games platform today. Most interesting are comments from Peter Moore indicating the company will be refocusing on fun, inspired by the financial and mass-market success of Nintendo's Wii. Says Moore "From a first-party point of view, it's not just about E-rated games, it's going to be about the experience that, quite frankly, Nintendo has done a tremendous job in capturing, in bringing back fun - if you will - to the gaming platforms." He's quick to point out that this is something they've had on the back burner for some time, and they intend to aim for 'experiential' games. The article wonders out loud, questioning whether this means Microsoft is planning to roll out a motion-sensing controller, or just more E and T rated games? Additionally, CVG points out that this week's Xbox Live Arcade release is The Behemoth's Alien Hominid . It's a tremendous side-scrolling 2d shooter, and well worth checking out.

Peter Wayner writes: "If you're a handicapped Windows user, Microsoft offers suggestions and assistance -- but XBox users were out of luck until Andrew 'Bunnie' Huang finished his book Hacking the XBox. Don't be fooled by the title. Officially, Huang's excellent book is not about helping the differently-abled. That would be against the law. Huang was forced by the DMCA to hide his humanitarianism under the cloak of 'reverse engineering' because this is one of the few legitimate uses given a small amount of protection by the law. But if you've got an urge to help the handicapped or any other reason to tinker with your XBox, buy this book before the Man sees through this ruse." Read on for the rest of Peter's review.