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AR-Guided Satellite Assembly: Reducing Errors in Complex Build Procedures
Relevant case studies
Author: Spark Team
AR-Guided Satellite Assembly: Reducing Errors in Complex Build Procedures
A modern spacecraft can contain thousands of components, interfaces, connectors, fasteners and inspection points. Manufacturing teams must translate engineering definitions into physical hardware while maintaining configuration control and traceability.
Augmented Reality (AR) offers an increasingly compelling way to connect those two worlds.
Rather than asking technicians to continually move between the spacecraft, drawings and workstation displays, AR can place selected digital information within the technician's view of the real assembly.
From Work Instruction to Spatial Instruction
Conventional digital work instructions are still fundamentally documents. They explain where something should be fitted using text, diagrams and illustrations.
AR can potentially show the location directly.
A technician looking at a spacecraft panel could see an overlay identifying:
The correct component location.
Fastener positions.
Cable-routing paths.
Connector identifiers.
Inspection zones.
No-touch areas.
The current procedural step.
This spatial relationship is particularly valuable where assemblies are densely populated or where several similar interfaces exist close together.
Training Before Live Assembly with VR
AR becomes even more powerful when combined with VR training.
Before working on the physical spacecraft, technicians could enter a virtual copy of the assembly station and practise the procedure.
The VR system might ask them to identify the right components, select tools, follow routing instructions and perform inspection points.
By the time they encounter AR guidance on the factory floor, the procedure is already familiar.
Cable and Harness Routing
Harness installation provides a good example of how spatial computing could help.
A complex harness may need to follow specific routes while maintaining separation, bend radius, clearance and attachment requirements.
A bespoke AR application could visualise the intended path over the real structure and highlight mounting locations sequentially.
The technician still performs the authorised operation and required inspection; AR simply makes the engineering intent easier to interpret spatially.
Inspection Through Digital Comparison
AR can also support verification.
A digital reference model can potentially be compared with the physical configuration so an inspector can focus attention on expected component locations and interfaces.
NASA reported using AR fit checks during Roman Space Telescope construction to identify a physical integration problem before it resulted in costly component rework.
Airbus has similarly described using mixed-reality technologies in manufacturing to provide workers with information while remaining hands-free, illustrating the broader industrial direction towards contextual digital assistance.
Keeping the Human in Control
AR should not become an uncontrolled substitute for formal documentation.
For safety-critical and quality-critical assembly, the authoritative SOP, engineering definition and approval process remain essential.
A well-designed system should therefore operate as a controlled interface to approved information rather than creating an independent version of the procedure.
Reducing Cognitive Load
One significant potential benefit is reducing the amount of information technicians must mentally translate.
Instead of reading a two-dimensional diagram, locating a component in three dimensions and remembering the next instruction, an AR interface can progressively present relevant information.
That could reduce mistakes associated with:
Misidentification.
Skipped steps.
Incorrect positioning.
Incorrect routing.
Repeated reference-document searches.
Capturing Progress and Verification
Depending on the required workflow, a bespoke AR application could also allow authorised users to record completion of inspection points or attach imagery to a work step.
This can create a stronger relationship between physical operations and digital records.
It is particularly relevant to increasingly digital satellite factories. Thales Alenia Space, for example, has described virtual and augmented reality alongside robotics and other digital technologies as part of its transformation of satellite manufacturing.
Why Bespoke Development Matters
The difficult part of industrial AR is rarely drawing an arrow on a screen. The challenge is understanding what information should be shown, when it should appear and how it relates to the customer's approved engineering process.
Spark develops bespoke AR solutions around the customer's actual equipment, workflows, SOPs and data requirements.
The interface can therefore be designed around the technician rather than forcing the technician to adapt to generic software.
Conclusion
Satellite assembly requires technicians to interpret large volumes of engineering information accurately. AR can make that information spatial and contextual, while VR provides an environment in which the same procedure can be practised before the physical build begins.
For manufacturers looking to improve repeatability, accelerate workforce competence or investigate digital work instructions, this combination offers significant potential.
To discuss a bespoke VR or AR system for spacecraft assembly, harnessing, manufacturing or inspection, contact Spark Emerging Technologies.
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