FJ Dynamics Trion P2

Portable SLAM LiDAR for fast professional 3D capture

The FJD Trion P2 is a compact mobile LiDAR scanner developed for surveyors, construction professionals, BIM teams, engineers, facility managers and reality-capture specialists who need to collect complete 3D information quickly. Instead of setting up a static scanner at many individual positions, the operator can walk through a site while the P2 continuously records the surrounding environment and builds a point cloud.

The scanner combines LiDAR, visual camera information and optional GNSS positioning in one connected workflow. This makes it suitable for indoor building surveys, outdoor site capture and projects that move between areas with and without reliable satellite reception.

Up to 70 metre LiDAR scanning range

The Trion P2 provides a scanning range of approximately 40 m at 10% reflectivity and up to 70 m at 80% reflectivity. This makes it practical for rooms, warehouses, industrial buildings, façades, streets, tunnels and many other environments where the important surfaces are within tens of metres of the operator.

Reflectivity matters in real fieldwork. Dark asphalt, vegetation or other low-reflectivity materials may be detected at shorter distances than brighter walls, concrete or reflective surfaces. Survey routes should therefore be planned around the actual environment rather than the maximum range alone.

200,000 points per second with full 360 degree coverage

The LiDAR records up to 200,000 points per second with a field of view of approximately 360° × 59°. As the operator moves through the project, the scanner continuously captures surrounding geometry and creates a spatial record of walls, floors, ceilings, equipment, terrain and other objects.

Point density depends on walking speed, distance to the surface and how often an area is observed. Slower movement and repeated passes can provide more coverage in locations where additional geometric detail is required.

Multi-SLAM for indoor and difficult environments

The Trion P2 uses a Multi-SLAM approach that combines LiDAR measurements with visual information and positioning constraints. This helps the system maintain its trajectory in environments where GNSS alone cannot operate, including building interiors, corridors, tunnels and other enclosed spaces.

For field crews, this means large areas can be captured by walking through them naturally instead of stopping for repeated instrument setups. It is particularly useful for jobs where speed on site matters and the project contains many rooms, floors or narrow passages.

RTK and PPK for georeferenced point clouds

With the optional GNSS module, the P2 supports RTK and PPK positioning. FJD specifies RTK performance of approximately 8 mm + 1 ppm horizontally and 15 mm + 1 ppm vertically, with a 10 Hz positioning rate.

In practical surveying workflows, RTK can connect the scan to project coordinates while collecting data, while PPK allows GNSS information to be processed after the survey. This is valuable for users who need more than a locally referenced SLAM model and want the final point cloud positioned within a real coordinate system.

Centimetre-level point-cloud accuracy

FJD specifies real-time point-cloud accuracy of approximately 2 cm relative and 5 cm absolute. After processing, the stated accuracy improves to approximately 1 cm relative and 3 cm absolute.

Relative accuracy is important for dimensions within the same scan, while absolute accuracy describes the position of the dataset within its reference system. Actual project results depend on the survey route, environment geometry, GNSS quality, control points and processing workflow, so engineering work with strict tolerances should still include suitable field checks.

Real-time colorized point clouds

A major practical feature of the Trion P2 is real-time colorized point-cloud processing. The scanner uses built-in cameras and on-device processing to add visual information to the captured geometry.

This helps the operator understand the scan while still on site. Missing rooms, occlusions or incomplete surfaces are easier to identify in a colored dataset than in a purely monochrome point cloud, reducing the risk of discovering gaps only after returning to the office.

Built-in cameras for visual SLAM and texture

The current P2 configuration uses a 2 MP front global-shutter camera together with two 48 MP side cameras. The front camera supports motion capture for visual SLAM, while the high-resolution side cameras provide image detail for colorization and visual documentation.

The P2 can also be used with supported external 360° cameras such as the Insta360 X3 and X5 where panoramic imagery is required for additional visual deliverables.

HyperDense+ for denser processed point clouds

The FJD Trion Model software includes HyperDense+, which FJD states can generate point clouds around five to seven times denser than the standard output. This is useful when the project needs smoother visual results, improved colorization or more detailed geometry for modelling and inspection.

For BIM, architecture and digital-twin work, denser processed data can make surfaces easier to interpret and provide a stronger reference for modelling. The appropriate processing level should still be selected according to the required deliverable and available computing resources.

Construction and as-built documentation

The Trion P2 is well suited to construction sites where teams need to document existing conditions, completed work or progress between project stages. A field user can walk through a floor or building and capture a complete spatial record rather than measuring only selected points.

The resulting point cloud can support as-built documentation, coordination, dimensional checks, progress records and CAD or BIM modelling. The captured dataset also allows office staff to revisit parts of the site virtually when additional dimensions are needed later.

BIM and floor plan workflows

For BIM and architectural applications, the Trion P2 can provide point clouds that serve as a reference for modelling existing structures. FJD’s software ecosystem can also support deliverables such as floor plans, meshes, panoramas and other visual outputs depending on the processing workflow.

This makes the system useful for renovation, property documentation, building conversion and projects where accurate knowledge of existing geometry is required before design work begins.

Facility management and digital twins

Facility managers can use mobile LiDAR to document rooms, corridors, installations and equipment in three dimensions. Colorized point clouds and panoramas help users understand the site remotely and provide a spatial reference for maintenance, asset documentation and future modifications.

The same captured dataset can support digital-twin workflows where geometry and visual information are used together to build a digital representation of the physical site.

Indoor tunnels and GNSS-denied spaces

The SLAM workflow makes the P2 suitable for spaces where conventional GNSS surveying is not practical. Tunnels, basements, indoor plants, parking structures and long corridors can be scanned while moving continuously through the site.

Careful survey technique still matters. Maintaining visual and geometric overlap, avoiding unnecessarily fast movement and closing loops where practical can help the SLAM system maintain a stable trajectory over larger projects.

Outdoor mapping with GNSS support

The optional GNSS module extends the P2 beyond indoor scanning. With RTK or PPK, surveyors can capture outdoor sites and connect the point cloud to project coordinates without relying only on local SLAM positioning.

This is useful for mixed indoor and outdoor projects, construction sites, infrastructure, forestry and other workflows where the operator repeatedly moves between open areas and locations with restricted satellite visibility.

Lightweight scanner for daily field use

The scanner body weighs approximately 700 g without battery, external camera and GNSS module. With the battery and GNSS module installed, the published weight is approximately 1.2 kg, or around 1.5 kg when an external camera is also fitted.

The low scanner weight is important for users who spend several hours walking through buildings or sites. It also makes the system easier to transport between jobs compared with larger static laser scanners and their supporting equipment.

Up to four hours of field operation

The P2 provides up to approximately four hours of battery operation with one set of two batteries, the GNSS module fitted and no external camera. With both GNSS and an external camera, FJD specifies around three hours.

The system supports fast charging and simultaneous dual-battery charging, helping field teams prepare batteries between survey sessions.

Large internal storage and practical data export

The P2 includes a 512 GB SSD and supports expansion up to 1 TB. Scan data can be transferred through wireless networking, USB Type-C or a USB flash drive.

Supported point-cloud formats include LAS, PLY, PTS and E57, making the output compatible with a broad range of surveying, CAD, BIM, engineering and point-cloud applications.

FJD Trion software workflow

The P2 works within the FJD Trion software ecosystem. FJD Trion Scan is used for field control and scan management, while FJD Trion Model handles processing and project outputs. Tablet versions support on-site processing and preview, while web-based tools can be used for sharing and collaboration.

This connected workflow is useful for teams that want to move from field acquisition to processed deliverables without assembling separate software from several manufacturers.

Who is the FJD Trion P2 for?

The P2 is particularly suitable for land surveyors, construction teams, BIM specialists, architects, engineers, facility managers, mining professionals and reality-capture companies that need a portable scanner for fast indoor and outdoor documentation. Its strongest combination is low weight, real-time colorized scanning, RTK/PPK support and centimetre-level processed point-cloud accuracy.

Buying the FJD Trion P2 from Global GPS Systems

The most suitable P2 configuration depends on whether the project needs GNSS positioning, panoramic imaging, indoor-only scanning or georeferenced outdoor work. Global GPS Systems can help choose the correct scanner, GNSS module, camera configuration and processing workflow for surveying, construction, BIM and professional 3D mapping projects.