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
A Single Strike Won’t Shut Off the Gulf’s Desalination System
Across the region, facilities tied to water and power—including desalination plants—have been damaged or exposed to risk as Iranian strikes extend beyond traditional targets.
A single strike, however, is unlikely to shut off the gulf’s water supply. The system is designed to absorb isolated disruption, but sustained or multisite attacks would begin to strain supply far more quickly.
“In the Gulf, desalination is built with enough breathing room that losing one plant doesn’t immediately show up at the tap,” says Rabee Rustum, professor of water and environmental engineering at Heriot-Watt University Dubai.
In Kuwait, Iranian drone attacks have damaged two power and desalination facilities and ignited fires at two oil sites. Other sites, including Fujairah in the UAE, have been identified as potentially exposed.
“Striking desalination plants would be a strategic move, but it would also come very close to, and in some cases cross, a red line,” says Andreas Krieg, senior lecturer at the School of Security Studies at King’s College London.
Water infrastructure, Krieg explains, occupies a distinct category. “Water infrastructure is not just another utility. In places that depend on desalination, it underpins civilian survival, public health, hospital function, sanitation, and basic state legitimacy.”
Krieg notes that international humanitarian law gives special protection to civilian objects and to objects indispensable to the survival of the civilian population. “Which is precisely why attacks on water systems carry such grave legal and moral weight,” Krieg adds.
The incidents highlight a structural reality: Desalination is central to water supply in the gulf, and disruption carries immediate implications for daily life.
How the System Absorbs Disruption
At first glance, desalination appears vulnerable. Shut down a plant, and supply is reduced. In practice, the system is designed with layers of redundancy.
Plants operate across multiple locations, allowing output to be redistributed if one facility slows down. Water is also stored at different points across the network, including central reservoirs and building-level tanks, creating a buffer that delays disruption.
According to a statement to WIRED Middle East by Veolia, an environmental services provider whose technologies account for nearly 19 percent of desalination capacity in the region, “the region’s water supply is diversified thanks to a network of numerous facilities distributed along the coastline.”
The company adds that distribution systems are interconnected, allowing plants to “support and substitute for one another when necessary,” helping maintain continuity of service.
In the UAE, storage capacity typically covers around one week, while in other parts of the region it may be limited to two to three days, Veolia says.
In practice, this means the system can absorb disruption for a limited period. Once reserves are depleted, water supply depends on whether plants can continue producing enough water to meet demand.
The System That Produces Water
Unlike most regions, the Gulf does not rely on rivers or rainfall. It depends on a network of desalination plants along its coastline that convert seawater into potable water on a continuous basis.
Seawater is drawn into treatment facilities, filtered and processed either through reverse osmosis—forcing it through membranes to remove salt and impurities—or through thermal methods that evaporate and condense water. The resulting supply is distributed through pipelines, stored in reservoirs, and delivered to homes, hospitals, and industry.
This is not a flexible system. It is designed to operate continuously, producing water at a scale that sustains cities, industrial activity, and essential services. Gulf states produce roughly 40 percent of the world’s desalinated water, operating more than 400 plants across the region.
Dependence varies by country but is high everywhere. In the UAE, desalination accounts for 41 to 42 percent of total water supply, while in Kuwait, it provides around 90 percent of drinking water, and in Saudi Arabia, approximately 70 percent.
When Disruption Becomes Visible
For residents, disruption would not be felt immediately—water would continue to flow.
Rustum explains that buildings are supported by internal storage and pumping systems, meaning early changes in supply may not be apparent. In many cases, water pressure remains stable, even as the wider system adjusts.
Tech
Border Patrol Agents Sold Challenge Coins With ‘Charlotte’s Web’ Characters in Riot Gear
US Border Patrol agents are raising money by selling coins that commemorate last year’s wave of immigration enforcement “operations” across the country, along with other merchandise. The funds are for nonprofit organizations that list Border Patrol buildings as their address in IRS paperwork. At least two of the organizations have dedicated US Customs and Border Protection email addresses.
The front side of one coin for sale reads, “NORTH AMERICAN TOUR 2025,” along with the acronyms for US Border Patrol and the acronym for “fuck around and find out”—a phrase that was initially popularized by the far-right group the Proud Boys and has been used by various Trump officials. In the center, the coin depicts a gas mask, a riot control smoke grenade, and a pepper ball launcher. On the other side, the coin appears to have a portrait of Border Patrol’s now retired commander-at-large, Gregory Bovino, with his arm raised in a salute, along with the text “COMING TO A CITY NEAR YOU!” It lists seven cities, many of which actually saw federal enforcement surges in 2025: Chicago, Los Angeles, Memphis, Phoenix, Portland, Charlotte, and Atlanta.
The coin is for sale by Willcox Morale Welfare and Recreation, a nonprofit that the IRS most recently declared tax-exempt during the Biden administration and whose address on IRS paperwork matches that of the Willcox Border Patrol Station in Arizona. A request for comment sent to Willcox MWR’s dedicated CBP email address went unanswered.
Employees of the Department of Homeland Security, the parent agency for Border Patrol, are allowed to start private, not-for-profit employee associations within DHS, so long as they get formally recognized by the agency and follow certain rules. According to DHS policies, officially recognized groups can fundraise using government property and create merchandise with the agency’s name and logos–but they have to receive advance approval from the agency.
Willcox MWR is just one of several groups across the country that cater to Border Patrol agents and refer to themselves as MWRs, a reference to the US military’s “morale, welfare and recreation” programs. The groups tend to throw holiday events and retirement parties, and sometimes raise money for the families of agents going through hard times, including those not getting paid during the current shutdown.
Many MWRs also sell customized medallions known as “challenge coins” that commemorate specific teams or events. While anyone, including CBP alumni, can design and sell coins, current DHS employees are not supposed to use government resources to sell ones that use the agency’s seals or logos without permission, or ones that the agency considers inappropriate or unprofessional.
CBP did not provide comment about its relationship to Willcox MWR or any other nonprofit mentioned in this story, nor whether the agency had green-lit the “North American Tour” coin design, ahead of publication.
Under Willcox MWR’s Facebook post about the “North American Tour” coin, someone named Juan Diego commented, “Sign up SDC BK5 MWR for 10.”
“Shoot us an email,” someone managing the Willcox MWR account replied, giving out what appeared to be a dedicated cbp.dhs.gov email address for the group.
SDC BK5 MWR, also a registered nonprofit, lists an address on its website that matches that of a government facility in Chula Vista, California. It says on its site that it was started by San Diego Sector Border Patrol agents and sells custom merchandise “designed to raise funds for morale and relief efforts.”
Diego did not respond to a request for comment.
The SDC BK5 MWR website has listings for over 200 different products in addition to the North American Tour coin. One of those listings was a “Chicago Midway Blitz” challenge coin in the shape of a gas mask that doubles as a bottle opener. Embossed around the edges of the coin are the names of several municipalities and neighborhoods caught up in DHS’s immigration enforcement surge of the same name last fall. Like the North American Tour coin, it features the US Border Patrol logo and the acronym for “fuck around and find out.” Opponents of the Trump administration’s immigration enforcement activity in Illinois are unamused.
Tech
One of Our Favorite 360 Cams Is 35 Percent Off
Tired of taking your action camera on an adventure, only to get home and find out you missed the action with a bad angle? One option is to switch to a 360-degree action cam, so you can capture all of the action and then edit down to just the good stuff later. One of our favorite options, the DJI Osmo 360, is currently available for just $390 on Amazon, a $209 discount from its usual price, and it comes with a selfie stick and an extra battery.
The DJI Osmo 360 achieves its impressive all-around video quality by leveraging a pair of 1/1.1-inch sensors, larger than some other offerings, and by supporting 10-bit color. You can really see that in the camera’s output, with colors that are vivid and bold, to the point that you may need to dial them back a bit in post if you want something more natural. With support for up to 50 frames per second at 8K when recording in 360 degrees, or 120 fps at 4K when shooting with only one sensor, you’ll have plenty of material to work with. In our testing, it ran for just shy of two hours at 30 fps, which is also around the time the internal storage had filled up anyway.
If you plan on catching any serious discussions with your Osmo 360, you’ll be pleased to know it connects directly to DJI’s line of wireless lavalier microphones, including the excellent and frequently discounted DJI Mic 2 and Mic Mini. If you want to mount it to something other than the included 1.2-meter selfie stick, it has both DJI’s magnetic attachment system and a more traditional ¼”-20 tripod mount. The DJI Mimo app lets you control the camera and adjust any settings, and there’s even a simple editor for on-the-fly production. For desktop users, DJI Studio has even more in-depth settings and editing options, in case you don’t want to pay for Premiere.
The DJI Osmo 360 is one of our favorite action cameras, and is particularly appealing at the discounted price point, but make sure to check out our full review for more info, or head over to our full roundup to see what else is available.
-
Uncategorized4 days ago
[CinePlex360] Please moderate: “Trump signals p
-
Uncategorized1 week ago
[CinePlex360] Please moderate: “Further tariff
-
Tech3 days agoOur Favorite iPad Is $50 Off
-
Entertainment3 days agoJoe Jonas shares candid glimpse into parenthood with Sophie Turner
-
Politics7 days agoTrump considers asking Arab allies to help to pay for Iran war
-
Sports1 week agoHow Arizona beat Purdue and Illinois defeated Iowa in Saturday’s Elite Eight
-
Sports1 week agoFakhar Zaman denies ball-tampering charge in PSL match | The Express Tribune
-
Entertainment1 week agoDemystifying the PTI
