Sensor Fusion: How Networked Soldier Systems Improve Situational Awareness

More sensors, higher data rates, more sophisticated interfaces: Modern soldier systems are evolving into networked platforms. Systems such as the U.S. Army's Integrated Visual Augmentation System (IVAS) use sensor fusion and edge computing to integrate information in real time and generate a reliable situational picture. The seamless integration of these functions offers soldiers significant advantages; however, their complexity places high requirements on compact, robust, and high-performance connectivity technology. 

While radio and thermographic cameras used to be the main focus, today's equipment includes night vision devices, AR glasses, GPS modules, cameras, drone interfaces, and other sensors. These systems generate ever-increasing amounts of data. The current challenge, therefore, is no longer limited to data collection, but lies in the rapid selection, evaluation, and presentation of information that is safe.

Individual sensor data is used to create a unified situational picture

Sensor Fusion consolidates the data streams from individual devices into a soldier's computer or data hub. The software checks whether the information is consistent and creates a summary of it as a reliable conclusion. In this way, separate sensor readings are combined to create a reliable situational picture that can be assessed and utilized more quickly.

The process consists of several steps: First, data is collected from thermographic cameras, night vision devices, GPS, drones, radios, and other sensors. The system then checks their plausibility and evaluates the reliability of the individual sources. Depending on environmental conditions, certain sensors may be given greater weight for example, thermal imaging data in foggy conditions. The results are then prioritized so that only relevant information is displayed. In this way, numerous individual reports are compiled into a situational overview that includes positions, distances, and other important information.

Illustrative depiction of a photograph with a low-light amplifier. The strong backlight source makes it difficult to see the situation clearly.

The combination of a low-light amplifier and a WBG clip-on offers a clear advantage here for identifying objects behind the photonic barrier.

Edge computing reduces response times

To ensure fast response times, data processing is increasingly carried out via edge computing directly at the source of the data, such as in a data hub or on a portable computer. This reduces latency, eases the load on networks, and improves reliability in the event of connection failures. Artificial intelligence supports the local evaluation, weighting, and prioritization of data. As the number of connected sensors increases, edge computing continues to gain importance. 

Connection Technology as a System Component

As the number of sensors, data sources, and computing power increases, so does the effort required for networking. Connectors are no longer used solely to supply power to individual devices; instead, they are becoming a central component of the system infrastructure. As a result, the requirements placed on joining technology are constantly increasing.

Requirement Technical Background Connector Features
High-speed data transmission Large amounts of data must be transmitted to the soldiers' computers in real time Ethernet, USB 3.x, video protocols
Hybrid connectors Sensors require both a power supply and a data interface. Hybrid Interfaces for Power and Data
Miniaturization More features with ever-decreasing space requirements Compact style, high contact density
High current-carrying capacity Local data processing leads to higher electricity consumption High-Performance Power Contacts
EMC protection Ensuring signal integrity and immunity to RF interference 360° shielding contact, EMC-optimized connector design
Ruggedness The failure of individual sensors degrades and distorts the situational picture Shock- and vibration-resistant contacting, IP protection, salt spray resistance
SWaP (Weight Reduction) Minimizing the Soldier's Burden Through Equipment Lightweight construction, compact style
Reliability of the Data Connection Missing, incorrect, or unreliable data can compromise the quality of the fusion results. Uninterrupted signal transmission, contact continuity

Compatible Connectors for Networked Systems

ODU's connection technology is designed to meet the requirements of networked soldier systems. They provide a connection between power and data transmission with a compact style, EMC protection, and high mechanical strength. 

ODU AMC® High-Density: With high contact density, optional high-speed data transmission, and combined power and data transmission—all in a connector with an outer diameter of just 12.8 mm—this connector is ideal for compact, high-performance applications. IP68 or IP6K9K protection, 360° EMC shielding, and locking options such as break-away and screw locking help ensure a stable connection and reduce the risk of signal interference. The plug is available in diameters of 7 mm and larger.  

* The ODU AMC® High-Density combines ruggedness, high pool density, and secure power and data rates, making it ideal for use in soldiers' portable equipment.

ODU AMC® NP: This connector, which is compatible with Nett Warrior, STANAG 4695, and GOSSRA, combines high-performance power contacts with a USB 2.0 data rate. 360° EMC shielding, IP68 protection rating, its light weight, and break-away design make it a robust hybrid solution for the reliable transmission of data and signals.

* Standardized interfaces such as the ODU AMC® NP are based on an open architecture but each has its own unique strengths.

ODU AMC®: The metal connector can be configured in a compact design with signal, power, and low-voltage contacts, as well as high-speed contacts such as Ethernet, USB 3.2, and video transmission (DP & HDMI). With up to 5,000 mating cycles, IP6K9K protection, and push-pull and break-away locking functions, these connectors are suitable for use in a wide variety of demanding environments.

With compact styles, high contact density, and the combined transmission of power and data, ODU supports the development of lightweight, space-saving, and high-performance soldier systems. This makes connectivity a critical factor for sensor fusion, edge computing and a networked situational awareness.

* Power, data, and signals. ODU AMC® stands for Advanced Military Connector and is specifically designed for field use.

Expert Insights into Connection Technology for Safety-Critical Applications

Product Manager Simon Köhler oversees the AMC portfolio at ODU. How does he assess the impact of sensor combinations and connection technology?

1 | More Data, Less Complexity

Q: The article shows that edge computing and the growing number of sensors worn by soldiers generate enormous amounts of data. In your opinion, what is currently the main focus of modern soldier systems? Is it more about the available installation space or about reliable high-speed data rate under extreme conditions?

A: Both are important, but the focus is increasingly on the reliable transmission of large amounts of data. Sensor fusion only works if data from thermal imaging devices, night vision systems, radios, GPS, or drones are integrated reliably and without delay. At the same time, weight, space requirements, and complexity must be reduced. For this reason, power, data, and signal lines are increasingly being combined into a single connector and connected to a central soldier hub or computer. This makes it easier to integrate systems into a soldier's equipment. ODU AMC® and ODU AMC® High-Density support this approach with compact hybrid connectors that combine power, data, and signals in a rugged interface.

2 | More Bandwidth, Less Weight

Q: The requirements for connector technology have changed significantly in recent years. In your opinion, how do you think these requirements will evolve over the next five to ten years? 

A: Over the next five to ten years, military systems will incorporate even more sensors, AI, and edge computing. As a result, the requirements for bandwidth, power transmission, and contact density are increasing, while size and weight must continue to be reduced. At the same time, there is a growing need for hybrid interfaces that combine power, data, and video in a single connector. ODU supports this development with compact, configurable, and High-Speed-capable AMC solutions.

3 | 360° EMC Shielding

Q: How does ODU ensure 360° EMC shielding to ensure that end devices are not affected by electromagnetic fields in critical situations? 

A: ODU AMC® solutions ensure reliable EMC protection with a continuous 360° shield connection between the cable and the connector. This reduces electromagnetic interference and ensures signal integrity even in critical operating situations. In addition, ODU offers high-quality cable assemblies with high shield coverage and 360° crimping to effectively provide shielding against interference. For particularly stringent EMC requirements, fiber-optic solutions can also be used, as they are immune to electromagnetic interference.

4 | Interoperability Meets Customization

Q: How do Nett Warrior, NATO STANAG 4695, and GOSSRA affect the compatibility of ODU connectors with soldier systems? Or will customized solutions continue to play an important role? 

A: Standardization initiatives such as Nett Warrior, NATO STANAG 4695, and GOSSRA will further improve the interoperability of soldier systems. ODU actively supports this development and participates in standardization projects, such as new VG standards. Nevertheless, custom solutions remain important when requirements for data rate, performance, robustness, or environmental resistance exceed those of standard solutions. Thanks to our broad product portfolio and high level of vertical integration, ODU can offer both standardized and customized solutions. Future requirements will also be shaped by geopolitical developments and new operational scenarios. For example, an increase in maritime and amphibious operations could place significantly higher requirements on corrosion resistance—such as up to 1,000 hours of salt spray resistance—and thus require solutions that go beyond current standards.

Product Manager Simon Köhler