Helmet Sensor Mount With EMI Shielding for Modular AR Displays
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Solution Overview
Problem
Current head-mounted display systems are tightly integrated and lack flexibility to use different display assemblies or processing components, making them inflexible for various applications and vulnerable to electromagnetic interference, especially in military contexts where adaptability and ruggedness are essential.
Innovation Solution
A sensor system mountable on a helmet with a pluggable sensor sub-assembly and processing module, allowing for easy upgrade and integration with different display devices, featuring conductive electromagnetic interference shielding and modular design for use in extreme environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If head-mounted display systems are tightly integrated as special-purpose assemblies, then manufacturing precision and reliability are improved, but adaptability and flexibility deteriorate
Solution Approach 1:
The system is divided into separate functional modules: a sensor subsystem (camera, processors, sensors) and a display subsystem (head-mounted display). These modules are connected through standardized mechanical and electrical interfaces, allowing them to be manufactured independently with high precision while maintaining adaptability through modular reconfiguration.
Solution Approach 2:
The patent implements universal interfaces that allow the sensor subsystem to work with multiple different display devices and configurations. The standardized mechanical mounting interfaces and electrical connections enable the same sensor assembly to be used across different applications and display types, achieving multi-functionality while maintaining reliability through consistent interface specifications.
2Device complexity
If head-mounted display systems are tightly integrated, then device complexity is reduced, but adaptability and ease of repair deteriorate
Solution Approach 1:
By segmenting the system into independent modules with standardized interfaces, the overall complexity is managed through clear separation of functions. Each module can be designed, manufactured, and tested independently, reducing the complexity of integration while maintaining adaptability through the modular architecture.
Solution Approach 2:
The modular design allows individual components or subsystems to be easily replaced or upgraded without affecting the entire system. If a sensor or processing component needs updating, only that specific module needs to be changed, enabling easy repair and adaptation while keeping the overall system complexity manageable.
3Ease of manufacture
If integrated units are used, then ease of manufacture is improved, but resistance to electromagnetic interference deteriorates
Solution Approach 1:
Separating the sensor subsystem from the display subsystem allows each to be manufactured independently with optimized electromagnetic shielding strategies. The sensor module can be housed in a shielded enclosure that is easier to manufacture separately than an integrated system, improving resistance to electromagnetic interference while maintaining manufacturing ease through modular production.
Solution Approach 2:
The standardized interface between modules acts as an intermediary that can include electromagnetic filtering and shielding components. This intermediate connection layer protects sensitive sensor signals from electromagnetic interference while allowing easy manufacture of separate modules that connect through this protected interface.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a flexible and rugged augmented reality solution that can be adapted for various applications without redesign, offering improved resistance to electromagnetic interference and compatibility with multiple display devices, suitable for extreme conditions.
Implementation Method 1
featuring conductive electromagnetic interference shielding
Data Source
Figure 1A~1B
Figure 1C
Figure 1D
AI summary
A sensor system is provided. A body includes a first side extension configured to mount to a helmet, a second side extension configured to mount to the helmet, and a processing module support member coupled to the first side extension and the second side extension configured to accommodate a processing module. A first sensor sub-assembly is positioned at least partially in the first side extension. The first sensor sub-assembly includes a first cable that includes a first plug configured to be plugged into the processing module, and a first sensor communicatively coupled to the first plug via the first cable.