How UWB Fusion Sensing Unlocks a New Era of Positioning in Non-Exposed Spaces

2025-12-22/ By Admin

In today's global wave of digitalization and intelligence, high-precision positioning has become a key cornerstone for cutting-edge technologies such as artificial intelligence, the Internet of Things, and the Industrial Internet. However, in non-exposed spaces where satellite signals are denied—such as indoors, underground, in tunnels, and urban canyons—traditional positioning technologies often face a "blindness" dilemma, creating the final bottleneck hindering pervasive intelligence. How to achieve stable, continuous, and centimeter-level positional awareness in these complex environments has emerged as a core challenge the industry urgently needs to overcome.

Against this backdrop, UWB (Ultra-Wideband) fusion sensing technology is standing out as a golden key to solving the positioning in non-exposed spaces. With its extremely high time resolution, strong anti-multipath interference capability, and centimeter-level positioning accuracy, UWB technology can establish a local high-precision spatiotemporal reference network akin to GNSS in environments without satellite coverage. It essentially functions as deploying "pseudolites" indoors, providing reliable location information for various mobile devices, robots, and intelligent agents.

However, relying solely on UWB still faces challenges like coverage gaps and signal occlusion. The true breakthrough lies in the innovative path of fusion sensing. By deeply coupling UWB with Inertial Measurement Units (IMU), the system achieves absolute high-precision positioning when UWB signals are strong while simultaneously calibrating IMU errors in real-time. During brief signal loss, the IMU enables autonomous continuous navigation via dead reckoning, seamlessly recalibrating and correcting once the signal recovers. This intelligent fusion strategy of "tight coupling + loose coupling" effectively addresses the shortcomings of single technologies, enabling the leap from "point positioning" to "continuous trajectory perception" in complex, dynamic scenarios.

Going a step further, the fusion sensing system can integrate multi-source sensors such as geomagnetic fingerprints, barometers, and visual semantic information, and introduce artificial intelligence algorithms for environmental learning, NLOS (Non-Line-of-Sight) identification, and dynamic compensation. This allows the system not only to "know the location" but also to "understand the context," gradually progressing from passive positioning toward active perception, thereby supporting higher-level situational analysis and decision-making.

Currently, this technological approach is demonstrating significant potential across multiple critical fields. In Industry 4.0 scenarios, it enables AGV collaborative scheduling, precise management of personnel, machinery, and materials, and full-process asset tracking. In the realm of smart public safety, it provides seamless indoor/outdoor positioning and vital sign monitoring for firefighters, greatly enhancing emergency response efficiency. For future commerce and spatial computing, it supports AR live-scene navigation, passenger flow analysis, and immersive interactive experiences within large venues.

As a deep practitioner and promoter in this field, Shenzhen Skylab M&C Technology Co., Ltd., under the leadership of Mr. Yang Yonghui, has been consistently committed to the R&D and industrial application of UWB fusion sensing technology. The company believes that advancing intelligence in non-exposed spaces must go beyond mere technical thinking; it requires a systems engineering mindset. By building open, integrated, and standardized positioning infrastructure and collaborating with industry partners to create an ecosystem, the true digital value of spaces, including underground and indoor environments, can be unlocked.

Looking ahead, with the continuous evolution of 5G-A/6G integrated sensing and communication, chip-level integration, and AI algorithm models, UWB fusion sensing technology will become even more "invisible," while its "omniscient" capability to interconnect everything and empower AI will grow even stronger. A seamlessly connected, precisely world is unfolding from this very point.