Biomass, recycling, RDF, and variable-density piles
Variable-density piles need clear separation between measured volume and estimated mass because moisture, compaction, and material mix change quickly.
Confirm the site problem, the Volivue approach, and the expected operating benefit before final selection.
Inventory disagreements become hard to resolve when pile shape changes daily and density is assumed informally.
Use fixed scanning for volume, store density assumptions, and tag reports by zone and material batch where the site can provide data.
The site gains a repeatable measurement process and a documented basis for mass estimates.
Variable density makes volume the only honest primary measurement
Biomass chips, recycled scrap, and refuse-derived fuel arrive in mixed batches whose moisture, particle size, and compaction change daily. Grab cranes and loaders rework the piles inside bunkers and halls, surfaces are ragged, and the same volume can weigh very differently from one week to the next. Informal density guesses make inventory disputes between fuel buyers and plant operators hard to settle.
Fixed scanning fits these sites precisely because it separates what is measured from what is assumed: volume comes from the point cloud, while mass remains an estimate against a recorded density. Plants that need contractual weight should anchor it on weighbridge or belt-scale data and use scanned volume for daily operations. Single homogeneous silos are better matched to point-level instruments.
Crane-aware mounting and a volume-first reporting chain
In fuel halls and bunkers, scan heads mount on roof steel outside the grab-crane envelope, with scan cycles timed between crane movements and transient filtering for anything still moving. Zone boundaries split the floor by fuel batch or storage row, and the commissioning record states which areas the crane structure leaves unmeasured. Mounting outside the crane path also protects heads from impact.
Reports stay volume-first: each zone publishes scanned volume, the density assumption applied, and the resulting mass estimate as separate fields through API or CSV to fuel management and ERP systems. Batch tags can follow deliveries where the site records them. This documented chain is what later makes a stock variance explainable to auditors, fuel suppliers, and plant accounting alike.
Groundwork for a defensible RDF and biomass inventory
- Record the fuel mix and its realistic density range, including moisture and compaction behavior.
- Map grab-crane and loader movement windows so scan cycles capture still surfaces.
- Define zone and batch tagging that matches how deliveries and reclaim are actually logged.
- Name the export targets, such as fuel management, ERP, or accounting, and their record format.
How accurate is the mass figure when density changes all the time?
The scanner measures volume; mass is only as good as the density figure applied to it, and Volivue does not pretend otherwise. The platform stores the assumption used for every report, so when moisture or mix changes you update the density record and the audit trail shows exactly when and why mass estimates shifted.
Will the overhead grab crane interfere with scanning?
The crane both blocks views and moves through them, so heads mount outside its travel envelope, scans are timed between crane cycles, and frames containing the grab are filtered or flagged. The commissioning report documents any floor strip the crane rails permanently shadow, so coverage claims stay honest.
Six checks decide whether the project needs V260, V7300 Mini, or a multi-scanner package.
Site survey and drawings
Collect shed or bin dimensions, pile height, roof structure, mounting points, vehicle routes, power, network, dust, and safety limits.
Scanner layout design
Define scanner count, field of view, blind zones, mounting height, scan schedule, and maintenance access.
Base model and zones
Build floor reference, boundary polygons, zone naming, empty reference, and reporting units before final volume output.
Algorithm and density workflow
Validate point-cloud cleaning, volume calculation, density assumptions, and estimated mass reporting against site checks.
Integration and handover
Map dashboard fields, CSV/API/OPC outputs, report schedule, alarm rules, user roles, and acceptance checks.
Documentation package
Prepare layout notes, point lists, report field definitions, density assumptions, role settings, acceptance records, and maintenance notes for later scenario pages.
Questions that decide scanner layout, volume confidence, integration, and project scope.
Is this a LiDAR system or a 3D radar system?
Volivue positions the page as a fixed 3D scanning product family. The project may use V260 3D stockpile scanners, V7300 Mini 3D radar scanners, or fixed LiDAR nodes depending on range, dust, mounting, and site layout.
Can one scanner cover a whole warehouse?
Only in compact scenes with clear line of sight. Long coal sheds, domes, aggregate bays, and large yards usually need scanner layout review and may need multiple scanning positions.
Does the system directly measure weight?
No. It measures pile shape and calculates volume. Estimated mass needs density assumptions, sampling data, or a customer density table documented in the project.
How accurate is the volume?
Accuracy depends on survey quality, base model, blind zones, dust, material surface, scanner position, and validation method. Volivue confirms a project target after reviewing the site.
Can it work in dusty coal sheds?
It can be reviewed for dusty sheds, but dust intensity, scan distance, cleaning plan, mounting protection, and data filtering must be checked before committing to coverage.
Can it export data to ERP or MES?
Yes. Scope can include dashboard reports, CSV, Web API, OPC, Modbus TCP, MQTT, database export, or ERP/MES handoff.
What should we send for quotation?
Send shed or bin drawings, photos, pile height, material, dust condition, power and network availability, current inventory method, required reports, and target integration interface.
What documents are usually included for handover?
The handover package can include scanner layout notes, point lists, interface maps, report templates, density assumptions, user roles, acceptance records, and maintenance or cleaning notes by scope.
Send pile geometry, site photos, material, dust level, and target reports.
Share drawings, photos, pile height, material, dust condition, mounting locations, power and network options, update cycle, and desired dashboard or ERP/MES outputs.