Goslam X1 5G
SLAM System for Confined Space Inspection
for DJI Matrice 4
Fly where nobody can go!
A SLAM laser scanner in a collision-tolerant cage, plug & play on Matrice 4E and 4T: one connector, no external control box, no second controller. It flies inside culverts, tanks and underground structures and returns a colour point cloud while you are still airborne — accuracy down to 1 cm, 200,000 points per second. No scaffolding, no confined-space entry permit, no one exposed.
accuracy
per second
field of view
radius
collision cage
Figures as declared by the manufacturer. Scanning radius 40 m at 10% reflectivity, 70 m at 80%. Real-world accuracy and density depend on the geometry of the space, flight speed and surface conditions.
Plug & play on DJI Matrice 4E and Matrice 4T
The scanner plugs into the drone's dedicated connector: power, data, scanning commands and the light all run through the aircraft. No external control box, no second controller, no extra wiring. With the thermal 4T, the same sortie also brings home the radiometric data.
LiDAR SLAM + RGB & Thermal Survey
with Drone for Confined Spaces
A service tunnel, a tank, a culvert, a basement after an incident. The data you need is always the same: real geometry, measurable, comparable over time. What changes — and what weighs on the budget — is the cost of getting an instrument in there.
⚠ Conventional confined-space survey
- Work permit, atmospheric testing, PPE and a standby rescue team
- Total station or static laser scanner, repositioned at every setup
- Hours of setup per section, with manual registration of the scans
- An operator exposed for the whole acquisition
- Scaffolding, towers or rope access wherever the floor is impassable
- Areas left unsurveyed because they cannot be reached safely
- Data available only after processing, days later
- Plant operations halted for the full duration of the job
✓ Drone SLAM System
- No personnel entry: the drone goes in, the operator does not
- SLAM on the move: no setups to place, no targets to lay out
- A single flight over the whole length, registered automatically with no manual stitching
- Pilot and crew stay outside, in a safe position
- Collision-tolerant cage: flies tight passages without risking impact damage
- Reaches heights and recesses no one can get to on foot
- Colour point cloud visible in real time on the controller
- Shutdown window cut to the length of the flight
Four things that change in the way you work
This is not a high-tech version of the same job. It is a different economics of the operation: who goes in changes, how long it takes changes, when the data arrives changes, and so does the cost of setting everything else up.
Real geometry you can measure
A dense colour point cloud of the whole volume, accurate to 1 cm. Not survey footage: a model you can take measurements from, cut sections through and compare campaign after campaign.
You see it as you capture it
The cloud appears on the controller during the flight. You spot a missing section immediately and recover it in the same visit, instead of coming back the following week.
From flight to data, with no wait
Fifteen minutes of flight per section, colour in real time and, in the connected version, a cloud that can be viewed and measured remotely while the capture is still running. Post-processing is there to refine the result, not to find out what you captured.
What you no longer have to organise
No entry permit, no rescue team, no scaffolding or rope access, no targets to lay out. Mounting on the drone is a plug-in, and break-point resume lets you swap a battery without losing alignment.
The system at work: flying indoors and capturing the point cloud.
From mounting to point cloud in four steps
The scanner plugs into the drone through a dedicated connector: power, data and commands all run through the aircraft, with no extra control box and no second controller to manage.
Plug in and cage
The scanner connects to the dedicated port on the Matrice 4E or 4T: plug & play, no tools, no control boxes. The quick-mount collision cage brings the overall envelope to 72×65×23 cm — the dimension that decides whether a passage is flyable or not.
Flight and SLAM
No GPS required. The SLAM algorithm builds the map as the drone advances, with a 360°×59° field of view and 200,000 points per second. The front light, controlled from the handset, illuminates the space for colour rendering.
Live check on the controller
The point cloud appears on the controller screen during the flight. The pilot judges the coverage achieved and corrects the flight path on the spot, with no external equipment.
Delivery and post-processing
Data recorded on board to 128 GB of storage and, in the connected version, streamed in real time. Post-processing optimises density and accuracy for measurement work.
Six things that decide whether the survey happens at all
In a confined space the sensor datasheet is not what makes the difference. The envelope does, and the light, and being able to make a mistake without breaking anything, and knowing you captured everything.
Collision-tolerant by design
The quick-mount cage encloses the drone on every side. In a culvert or inside a tank, touching a wall is not a remote possibility: it is the reason most airborne confined-space surveys are never even attempted. Here contact is designed for, not feared.
- Overall envelope 72 × 65 × 23 cm, cage included
- Flight through tight passages with no risk of impact damage
- Less pressure on the pilot, flight paths closer to the surfaces
Not a grey cloud to decipher
A 5 MP global-shutter image sensor fused with the laser: the cloud comes out in colour already, at uniform density. Structural features are recognisable at a glance, with no separate colourisation stage.
- Camera-laser fusion with synchronised colour output
- 5 MP global shutter sensor: no motion distortion
- Usable for quick identification in the field, not only for surveying
You know what you captured before you land
The cloud is visible on the controller screen while the drone works. That is the difference between going home with the data and going home hoping the data is complete — and, if something is missing, between reflying one pass and rescheduling the whole trip.
- Live display with no additional equipment
- Flight path corrected during the capture itself
- Light and scanning controls handled from the same controller
A large space, one single cloud
When the scene cannot be covered in one flight, scanning resumes from the break point. Swap a battery or stop whenever you need to: the results align by themselves, in real time and in post-processing, with no manual stitching.
- Unlimited number of resumed scans
- Automatic registration, no stitching afterwards
- Complex spaces covered as one single survey
Darkness stops being a constraint
A dedicated front light, adjustable from the controller. Underground and in enclosed volumes it does two jobs at once: showing where you are flying, and producing clean imagery for the colour rendering of the cloud.
- Lighting controlled from the handset
- Safe flight and sharp imagery in unlit spaces
- Operating range −20 °C to +50 °C
Real coordinates without laying out targets
Reference points are captured by laser pointing: the point information is recorded quickly and then used for coordinate conversion and plane positioning. No targets to carry in, lay out and collect again in a space nobody enters.
- Fast point sampling directly in the field
- Usable for coordinate conversion and reference planes
- Less kit to move, less time on site
360° around, 59° vertically
The field of view is why one flight is enough where dozens of setups would otherwise be needed. The sensor captures the whole ring around the drone as it advances: walls, crown and floor all enter the same pass.
- Field of view 360° × 59°
- Rate 200,000 points per second
- Radius 40 m at 10% reflectivity · 70 m at 80%
- Declared accuracy down to 1 cm
- Flight endurance of roughly 15 minutes per section
360° × 59° field of view, with the collision cage enclosing the drone.
Technical data
Figures as declared by the manufacturer, for the scanning system excluding the aircraft. The final configuration is defined together at the design stage.
From point cloud to a model people can use
Capture is half the job. The other half is producing data that someone, in the office or on site, can actually use to make a decision.
- Colour point cloud, uniform density, ready for measurement
- High-precision post-processing for survey work
- 3D Gaussian reconstruction with a dedicated viewer
- In the connected version: remote viewing and measurement during capture
- Comparison between successive campaigns along the same route
Colour point cloud and measurement tools on the captured model.
Eight environments where conventional surveying costs too much
The criterion is always the same: an enclosed volume, little light, difficult or dangerous access, and the need for geometry that is measurable and repeatable over time.
Tunnels and galleries
The full length in one pass, with campaign-to-campaign comparison to track deformation and spalling.
Tanks and silos
Internal volume, wall condition and residual geometry without spending the time a confined-space entry requires.
Basements and culverts
Plant rooms, shafts, ducts and inspection passages that neither a person nor a wheeled vehicle can reach.
Mines and quarries
Production drifts, faces and stopes, with volumes computed straight from the cloud.
Industrial interiors
Sheds, plant and production lines: as-built survey for revamping and layout work.
Stockpiles and storage
Volumetric measurement of covered stockpiles, bulk materials and enclosed warehouses.
Emergency and post-incident
Unstable structures after fire, collapse or flooding: the geometry before crews go in.
Heritage and archaeology
Crypts, vaults, hypogea and historic structures, surveyed without scaffolding and without contact.
Got a space nobody can survey?
Describe the geometry and the access constraints. We will tell you whether the system can get in there, with which package, and what the real limits are at your site — before any quotation.
Two packages: with or without the drone
If there is already a Matrice 4E or 4T in the fleet, all you need is the scanning kit. Otherwise start from the complete combo with the Matrice 4T, thermal camera included. At the demo we work out together which of the two fits your spaces and your survey frequency.
SLAM Scanner Kit
For operators who already fly a Matrice 4E or 4T. It plugs into the drone's connector and adds 3D laser scanning in confined spaces, with all the processing software included.
- 1× SLAM 3D LiDAR scanner with integrated 5G module
- 1× Quick-mount collision cage
- 1× Card reader
- 1× 128 GB TF card
- 8× M3×6 hand-tightened fixing screws
- 2× Spare soft rubber pads
- 1× Lens cleaning cloth
- 1× Point-cloud post-processing software licence
- 1× Desktop processing software, standard edition
- 1× 3D viewer
- 1× Hard-shell safety transport case
- Drone not included
Matrice 4T Combo
Everything you need to produce surveys from day one, thermal camera included: drone, scanner, batteries, guards and operational training. One supply, one point of contact.
- Everything in the SLAM Scanner Kit, plus:
- 1× DJI Matrice 4T
- 3× Flight batteries
- 1× Battery charger
- 1× 360° propeller guard kit
- 1× Transport case
- 1× 4-hour operational training*
* Operational training. Four hours alongside our technicians, at our Rimini facility or at your own site: mounting, calibration, a first guided capture and verification of the settings for your type of environment. Grenke operating lease available over 24 to 60 months, and supply through Italian public procurement (MEPA) for public bodies.
Matrice 4T: the same flight brings the thermal data home too
The scanning kit works on both the Matrice 4E and the 4T. If the drone is still to be bought, choosing the 4T adds something geometric survey alone cannot give you: a radiometric thermal camera on board. Inside a tunnel or a tank that means walking out with the point cloud and the thermal map, without a second visit.
The Matrice 4T at a glance: multi-camera gimbal with thermal imager, NIR auxiliary light and laser rangefinder.
Where it is, how big, how it is built
The colour point cloud from the SLAM scanner: real geometry, sections, volumes and comparison between successive campaigns. It is the basis on which measurements are taken.
Where something is wrong
The radiometric thermal camera reads from −20 to +550 °C to ±2 °C: water ingress, thermal bridges, leaks, hot spots on switchgear and motors, traces of standing water. Anomalies invisible to the eye, and to the point cloud.
Figures as declared by DJI, for the aircraft in standard configuration. With the scanner and the collision cage fitted, endurance and flight performance are reduced: the operational reference for a scanning section is roughly 15 minutes. The Matrice 4E remains the right choice when thermal is not needed. Compare Matrice 4T and 4E →
The system is the starting point, not the project
Buying a scanner is easy. Coming away with a usable survey, from a difficult space, with people who know what they are doing, is another matter.
Assessment of the space
Geometry, minimum sections, access points, hazardous atmosphere, lighting. This is where the honest answer comes from on what can be surveyed and what cannot.
Configuration and commissioning
Mounting, calibration, a first field capture with your own staff, and verification of the settings for your type of environment.
Training and regulation
Operational training, support with EASA/ENAC documentation, D-Flight registration and help with the mandatory insurance policy.
Ongoing support
A dedicated technical contact, software updates, spare parts and support over time. DJI Gold 5 Dealer, ISO 9001:2015.
What we get asked before the purchase
Which drones does it fit, and how complicated is it?
The kit fits the DJI Matrice 4E and Matrice 4T and is fully plug & play: it goes into the drone's dedicated connector, and power, data, scanning commands and the light all run through it. No external control box, no second controller, no wiring to build. With the Matrice 4T you also bring home the thermal data from the same sortie.
Does the scan need GPS to work?
No. Positioning is built by the SLAM algorithm from the sensor's own perception during flight: that is exactly why the system works in tunnels, underground and inside enclosed structures where no satellite signal reaches.
How narrow a passage can it fly through?
The overall envelope with the collision cage is 72 × 65 × 23 cm. The usable clearance has to be assessed case by case, because beyond the cross-section what matters is protruding obstacles, airflow and the manoeuvring margin the pilot needs. It is one of the first things we check together.
What accuracy do you actually get in the field?
The manufacturer declares accuracy down to 1 cm. The real figure depends on the geometry of the space, flight speed, surface reflectivity and the quality of the post-processing. For applications with strict metric requirements, a trial in your specific environment before purchase is worth doing.
Are fifteen minutes of flight enough for a long tunnel?
For one section, yes; for a long stretch you work in several passes. Break-point resume lets you stop, swap a battery and pick up from where you left off: the scans align automatically, with no manual stitching and no limit on the number of resumptions.
Do you need a specialist pilot?
You need a pilot certified under EU Regulation 2019/947 who is comfortable flying in tight spaces. Managing the scan, on the other hand, is built into the controller: no second operator and no extra control box. Staff training is part of the delivery process.
Is the data compatible with our software?
The output is a point cloud, so it fits the CAD and BIM workflows you already run. The exact formats and export options depend on the software configuration chosen: we check them against your workflow before the order.
Is there a version with real-time transmission?
Yes. In the connected configuration the colour cloud can be viewed and measured remotely while the capture is still running, through the dedicated cloud platform. It is the mode built for emergency coordination and for supervising works from a distance.
Can we try it before deciding?
Yes. An operational demo at our Rimini facility, or directly at your site, in the actual space you need to survey. It is the quickest way to find out whether the section is flyable and what quality of data you get in your conditions.
Let us talk about your space
Tell us what you need to survey and under what access constraints. We will tell you whether the system can get in there, which package makes sense and what the real limits are — before talking about price. We come back to you within 48 hours.
