Tech
Nature-inspired navigation system helps robots traverse complex environments without GPS
Robots could soon be able to autonomously complete search and rescue missions, inspections, complex maintenance operations and various other real-world tasks. To do this, however, they should be able to smoothly navigate unknown and complex environments without breaking down or getting stuck, which would require human intervention.
Most autonomous navigation systems rely on global positioning systems (GPS), which can provide information about where a robot is located within a map. In many environments, however, including caves, unstructured spaces and collapsed buildings, GPS systems either do not work or become unreliable.
Researchers at Beijing Institute of Technology recently developed a new nature-inspired system that could improve robot navigation in unstructured and complex environments, without relying on GPS technology. Their proposed framework—outlined in a paper set to be published in Cell Press and currently available on the SSRN preprint server—is inspired by three distinct biological navigation strategies observed in insects, birds and rodents.
“Our research was inspired by a critical gap we identified in the field of bio-inspired robotics,” Sheikder Chandan, first author of the paper, told Tech Xplore. “While many studies have successfully isolated and implemented navigation strategies from individual animals, like an ant’s path integration or a rat’s cognitive mapping, this reductionist approach misses a fundamental biological principle known as ‘degeneracy.’ In nature, robust navigation emerges from the hierarchical integration of multiple, non-identical, yet functionally overlapping strategies.”
A three-part, nature-inspired framework
Instead of developing a system inspired by one navigation strategy observed in a specific category of animals, Chandan and his colleagues wished to create a unified neuromorphic framework that drew from various species. Ultimately, they were able to emulate biological processes that support navigation in insects, birds and rodents.
“We aimed to synthesize the most effective strategies observed in these three categories of animals into a single system, to directly address the core limitations of conventional navigation, such as sensory brittleness and high energy consumption, particularly in challenging, GPS-denied environments,” said Chandan.
The team’s framework thus has three main bio-inspired components that collectively support a robot’s navigation. These are an insect-inspired path integrator, a bird-inspired multisensory fusion system and a rodent-inspired mapping system.
“First, the insect-inspired path integrator, built as a spiking neural network on low-power neuromorphic hardware, acts as a robust internal step-counter for egocentric tracking,” explained Chandan. “The avian-inspired multisensory fusion system then mimics how migratory birds use multiple cues, using a Bayesian filter to dynamically combine inputs from a quantum magnetometer, a polarization compass, and vision, to ensure a reliable heading direction even if one sensor fails.
“Third, a rodent-inspired cognitive mapping system creates a spatial memory by only updating the map upon detecting salient landmarks, mirroring the energy efficiency of the brain’s hippocampus.”
To assess the potential of their nature-inspired framework, the researchers carried out extensive field trials using 23 different robotic platforms. These tests were performed in complex real-world environments, including abandoned mines and dense forests.
“The system was benchmarked against conventional SLAM (Simultaneous Localization and Mapping) and showed a 41% reduction in positional drift, up to 60% higher energy efficiency, and could recover from sensor failures 83% faster,” said Chandan. “Its unique advantage is ‘degeneracy’—when one component is compromised, the others seamlessly take over, providing a level of fault tolerance that isolated systems lack.”
Performance gains and possible applications
In initial field tests, the architecture developed by this team of researchers was found to achieve remarkable results, allowing a wide range of robots to successfully navigate unstructured and difficult environments.
“We didn’t just improve a single algorithm; we created a new systems-level paradigm that is inherently more resilient,” said Chandan. “Quantitatively, this resulted in significant, simultaneous gains in accuracy, energy efficiency, and robustness across diverse robotic platforms. A key demonstration was the system’s rapid recovery from sensor failure; when the primary camera was blinded, it re-established accurate positioning in just over 3 seconds by leveraging its other functional subsystems.”
In the future, the framework developed by Chandan and his colleagues could be improved further and deployed on an even larger pool of robotic systems, allowing them to reliably and autonomously tackle missions in unpredictable environments. In addition, it could inspire the creation of similar robot navigation systems that draw from the navigation strategies employed by a variety of animals.
“This work provides a formal blueprint for creating machines with true ‘ecological fluency,’ capable of long-term operation in environments where failure is not an option,” said Chandan. “This could include applications in disaster response, such as navigating collapsed buildings, planetary exploration on other worlds, and deep-sea missions, where conventional GPS and perfect sensing are unavailable.”
The researchers are currently planning new studies aimed at overcoming some observed limitations of their framework. For instance, they would like to integrate on-chip and continuous learning to make the navigation of robots even more lifelike and adaptable.
“Currently, our system’s neural weights are largely pre-configured, but biological systems continuously learn and adapt through synaptic plasticity,” added Chandan. “We plan to explore emerging technologies like memristive synapses to incorporate this capability directly into the hardware.
“Furthermore, we aim to scale the system for kilometer-scale environments, which will require developing more sophisticated memory organization schemes to handle larger spatial maps efficiently. Our ultimate goal is to create robots that don’t just mimic isolated animal behaviors but embody the continuous learning and scalability of biological intelligence.”
Written for you by our author Ingrid Fadelli, edited by Stephanie Baum, and fact-checked and reviewed by Robert Egan—this article is the result of careful human work. We rely on readers like you to keep independent science journalism alive.
If this reporting matters to you,
please consider a donation (especially monthly).
You’ll get an ad-free account as a thank-you.
More information:
Chandan Sheikder et al, A neuromorphic framework for bio-inspired navigation in autonomous robots, SSRN (2025): DOI: 10.2139/ssrn.5674916
© 2025 Science X Network
Citation:
Nature-inspired navigation system helps robots traverse complex environments without GPS (2025, November 14)
retrieved 14 November 2025
from https://techxplore.com/news/2025-11-nature-robots-traverse-complex-environments.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.
Tech
Welcome to the Future of Noise Canceling
This blurring of the lines between audio and health devices looks set to be a trend across the industry. “We really want to make sure that we take care of our customers’ hearing,” says Miikka Tikander, the Helsinki-based head of audio at Bang & Olufsen. Tikander points to recent data about the decline in hearing health in young adults and reports that there was a lot of emphasis from manufacturers on ANC and hearing health at the AES’ Headphone Technology conference in Espoo, Finland this August.
“Apple has a big lead in that area,” he says. “We want to make sure that our headphones can adapt, make this choice [on when to block out sound] on your behalf, if you let it, of course. Some people don’t like that idea, but if there’s a noisy event in your surroundings, the headset can take care of it, just tune it out a bit and get you back to normal listening once you are away from that noise.”
Enter the “Sound Bubble”
Hearvana AI is one startup looking to go much further than the AirPods’ current suite of noise canceling and ambient noise features. Cofounded by Shyam Gollakota, a computer science & engineering professor at the University of Washington, and two of his students, Malek Itani and Tuochao Chen, Hearvana recently raised $6 million in a pre-seed round which included none other than Amazon’s Alexa Fund.
One of the startup’s first big innovations was “semantic hearing,” which was the first project they approached, around three years ago. The team built a hardware prototype—a pair of on-ear headphones with six microphones across the headband, connected to an Orange Pi microcontroller—to test out a model that had been trained to recognize 20 different types of ambient sounds. This included things like sirens, car horns, birdsong, crying babies, alarm clocks, pets, and people talking, and then allowed the user to isolate say, one person’s voice as a “spotlight,” and block out all the other frequencies.
“So I’m going to the beach and I want to listen to just ocean sounds and not the people talking next to me, or I’m in the house vacuum cleaning but I still want to listen to people knocking on the door or important sounds, like a baby crying,” explains Gollakota, who is based in Seattle. “And that’s what we solved first. This was the difference between a vacuum cleaner and a door knock. They sound pretty different, right?”
Tech
Looking for the Best Smart Scale? Step on Up
Other Smart Scales
Renpho MorphoScan for $150: The Renpho MorphoScan full-body scanner looks surprisingly similar to the Runstar FG2015, including a near-identical display attached to the handlebars. Well, spoiler alert, they are basically the same scale. They even use the same app to collect data (and you can even use both scales simultaneously with it). The only reason this scale isn’t our top pick for the category is that it’s $15 more expensive. You can rest assured that a price war is looming.
Arboleaf Body Fat Scale CS20W for $40: This affordable Bluetooth scale isn’t the most eye-catching I’ve tested, owing to its big, silver electrodes and an oversized display that comes across as a bit garish. While weight is easy to make out, the six additional statistics showcased are difficult to read, all displayed simultaneously. I like the Arboleaf app better than the scale, where five more metrics can be found in addition to the seven above, each featuring a helpful explanation when tapping on it. It’s a solid deal at this price, but the upsell to get an “intelligent interpretation report” for an extra $40 per year is probably safe to skip.
Hume Health Body Pod for $183: Hume Health’s Body Pod, another full-body scanner with handles, is heavily advertised—at least to the apps on my phone—and touted (by Hume) as the Next Big Thing in the world of body management. While the app is indeed glossy and inviting, I was shocked to discover how flimsy the hardware felt, that it lacked Wi-Fi, and that some features are locked behind a $100-a-year Hume Plus subscription plan. It works fine enough, but you can get results that are just as good with a cheaper device.
Garmin Index S2 for $191: Five years after its release, the Index S2 is still Garmin’s current model, a surprise for a company otherwise obsessed with fitness. It’s still noteworthy for its lovely color display, which walks you through its six body metrics (for up to 16 users) with each weigh-in. The display also provides your weight trend over time in graphical form and can even display the weather. The scale connects directly to Wi-Fi and Garmin’s cloud-based storage system, so you don’t need a phone nearby to track your progress, as with Bluetooth-only scales. A phone running the Garmin Connect app (Android, iOS) is handy, so you can keep track of everything over time. Unfortunately, as health apps go, Connect is a bit of a bear, so expect a learning curve—especially if you want to make changes to the way the scale works. You can turn its various LCD-screen widgets on or off in the app, but finding everything can be difficult due to the daunting scope of the Garmin ecosystem. The color screen is nice at first, but ultimately adds little to the package.
Omron BCM-500 for $92: With its large LCD panel, quartet of onboard buttons, and oversize silver electrodes, the Omron BCM-500 is an eye-catching masterwork of brutalist design. If your bathroom is decked out in concrete and wrought iron, this scale will fit right in. The Bluetooth unit syncs with Omron’s HeartAdvisor app (Android, iOS), but it provides all six of its body metrics directly on the scale, cycling through them with each weigh-in (for up to four users). It can be difficult to read the label for each of the data points, in part because the LCD isn’t backlit, but the app is somewhat easier to follow, offering front-page graphs of weight, skeletal muscle, and body fat. On the other hand, the presentation is rather clinical, and the app is surprisingly slow to sync. For a scale without a Wi-Fi connection, it’s rather expensive too.
Power up with unlimited access to WIRED. Get best-in-class reporting and exclusive subscriber content that’s too important to ignore. Subscribe Today.
Tech
To Start Doing What You Want to Do, First Do Less
This applies not just to things you have to do, but also things you think you want to do. Maybe you think you should learn Spanish, but you haven’t done anything to actually learn Spanish. Admitting that you aren’t actually committed to the idea enough to do the work of learning Spanish can help close that loop. Letting go of that feeling that you should learn Spanish just might be the thing that frees up your mind enough that you decide to take up paddleboarding on a whim. The point is that the new year isn’t just a time for starting something new. It’s a time to let go of the things from that past that are no longer serving you.
In many ways this is the antidote to that ever-so-popular slogan “Just do it.” Just do it implies that you shouldn’t think about it, instead of deciding what you really want to do or should do. Maybe spend some time remembering why you wanted to do it in the first place, and if those reasons no longer resonate with you, just don’t do it.
If you like this idea, I highly recommend getting Allen’s book. It goes into much more detail on this idea and has some practical advice on letting go. You can still keep track of those things, in case you do decide, years from now, when you’re paddleboarding through the Sea of Cortez, that now you really do want to learn Spanish and are willing to do the work.
Remember to Live
I will confess, my enthusiasm for Getting Things Done has waned over the years. Not because the system doesn’t work, but because I have found my life more dramatically improved by doing less, not more. It’s not that I’ve stopped getting things done. It’s that I’ve found many of the things I felt like I should do were not really my idea; they were ideas I’d internalized from other places. I didn’t really want to do them, so I didn’t, then I felt guilty about it.
While everything I’ve written above remains good advice for starting a healthy habit and keeping it going, it’s worth spending some time and making sure you know why you want to do what you’re doing. I have been rereading Bertrand Russell’s In Praise of Idleness, and this line jumped out at me: “The modern man thinks that everything ought to be done for the sake of something else, and never for its own sake.”
-
Sports7 days agoBrooks Koepka should face penalty if he rejoins PGA Tour, golf pundit says
-
Business7 days agoGovt registers 144olive startups | The Express Tribune
-
Politics7 days agoThailand, Cambodia agree to ‘immediate’ ceasefire: joint statement
-
Politics7 days agoHeavy rains, flash floods leave Southern California homes caked in mud
-
Fashion7 days agoClimate change may hit RMG export earnings of 4 nations by 2030: Study
-
Entertainment7 days agoSecond actor accuses Tyler Perry of sexual assault in new lawsuit
-
Fashion7 days agoArea CG’s Fernando Rius says luxury is not about buying something expensive, it is about understanding the culture, history, and time invested
-
Entertainment1 week agoInside royal families most private Christmas moments


