Use cases

Built on real systems, in real sectors.

62 worked cases. System-level projects on DjiniousEngineering and DjiniousCC, spatial and data work, and a library of models built in DjiniousLab — every figure measured on the running product.

The System Ledger canvas in DjiniousEngineering, shown on the Kestrel-SAR III project: lifecycle-stage columns from Mission & Need to Engineering Models, each headed by its ISO 15288 process and holding typed items tagged with their artifact type and evidence class.

Subsea autonomyMarlin-XR Seabed Survey AUVAn autonomous underwater vehicle surveying the export-cable corridor of the Dogger Bank offshore wind farm. The bundled demo ledger: forty items seeded across all eleven lifecycle stages, from the mission brief to the deployment procedure.

DjiniousEngineering

The DjiniousEngineering requirements table holding eight requirements — mission, safety, regulatory, performance, environmental, payload and operational — each with its verification method, rationale, source, value, unit and tolerance, marked Agreed or Allocated.

Uncrewed aircraftKestrel-1 Survey UAVA fixed-wing survey UAV, seeded as a worked example: eight requirements, six components, four suppliers and four verifications, wired into a traceability graph, with a real ELANG system_model and an inline Technical Data Package.

DjiniousEngineering

An ELANG source model in the DjiniousEngineering editor, shown on the Kestrel-SAR III payload: the project, its actors and its requirements, each with an acceptance criterion and a verification method.

Industrial roboticsKronos Robotic Work CellA six-axis robotic work cell modelled end to end in ELANG as an audited reference — roughly a thousand lines carrying a functional-safety design to ISO 13849-1 Performance Level d, with every safeguard traced to the hazard it mitigates.

DjiniousEngineering

The ELANG graph view in DjiniousEngineering, shown on the Kestrel-SAR III payload: components, requirements, tests, actors and lifecycle phases connected by traceability edges, with pillar and relation filters and a conformance-gaps panel.

Grid-scale energySunnyGrid80 Solar-Storage PlantAn 80 MW photovoltaic plant with a 40 MW / 80 MWh battery energy-storage system and its grid substation, modelled in ELANG as an audited reference to UL 9540A and IEC 62443 — a system-of-systems where the interfaces carry as much of the design as the boxes.

DjiniousEngineering

The ELANG source of the Kestrel-SAR III airborne L-band SAR imaging payload in the DjiniousEngineering editor: the project, its actors (an RF/SAR systems specialist, a payload integrator, an edge-compute supplier) and its performance requirements, each with an acceptance criterion and a verification method.

RF & radar sensingEmbedded Radar Sensing ModuleAn embedded radar sensing module — the system class the RF/radar recipe covers: a mixed-signal board where spectrum, EMC, environmental and fabrication standards constrain the design as hard as the sensing requirement does.

DjiniousEngineering

The DjiniousCC 3D city twin over Marseille: 3,356 extruded IGN BD TOPO building footprints on live IGN orthophoto imagery, with thirty consumer substations picked out in amber and ringed by red alarm halos, the network tree on the left and a live time scrubber below.

District energyEuroméditerranée District Energy NetworkA seawater-source district-heating network: two intake pumps and two seawater exchangers feeding three heat pumps, two backup boilers and a stratified thermal store, distributing through two network pumps and a differential-pressure valve to thirty consumer substations. The network is simulated; the city under it is not — every substation sits on its real IGN BD TOPO® building footprint in the Euroméditerranée quarter. It is a demonstration network on open data, not any operator's plant.

The Vaucluse Water Treatment Works process overview in DjiniousCC: raw-water pumps, intake valve, three ultrafiltration skids, UV reactor, chlorine dosing, clearwell and three distribution pumps, with live flows on every line.

Water & wastewaterVaucluse Water Treatment WorksA 42 Ml/d municipal drinking-water works: raw-water intake, coagulation, three ultrafiltration skids, UV and chlorine disinfection, clearwell storage and pressure-managed distribution.

The Camargue gas processing skid overview in DjiniousCC: wellhead ESD valve, two separators, pressure control valve, two compressors, coolers, condensate tank and export pump, with a relief header routed up to the flare stack.

Oil & gas midstreamCamargue Gas Processing SkidA midstream conditioning and export skid: emergency shutdown valve, two three-phase production separators, pressure control, two export compressors, interstage and export cooling, condensate export and a flare/relief system.

The Bellini Foods bottling line overview in DjiniousCC: blow moulder, conveyors, aseptic filler, capper, labeller, case packer and palletiser in a single left-to-right train, each machine showing live OEE.

Food & beverage manufacturingBellini Foods — Aseptic Bottling Line 3A 24 000 bottles/hour aseptic PET line: blow moulding, aseptic filling, capping, labelling, case packing and palletising, with live OEE on every machine and its own utilities and CIP block.

The Provence Hybrid Plant single-line overview in DjiniousCC: six wind turbines and four PV blocks feeding a 33 kV collector bus, two battery racks, the main transformer and the 225 kV grid connection.

Renewable generationProvence Hybrid PlantA 120 MW hybrid plant: six wind turbines, four PV inverter blocks, two battery racks, the main 33/225 kV transformer, the grid connection point and a meteorological mast.

Isaac Sim RTX render of the drone airframe in the physics scene, on NVIDIA GB10.

Drone systemsA quadcopter mission, flown before the drone existsA complete quadcopter wired from library parts into one co-simulation, its flight controller closing the loop around NVIDIA Isaac Sim rigid-body physics — and a real take-off, hover, climb, descent and landing recorded from that loop.

DjiniousWorkshop

Generated Rust for the 2oo3 voter step, traced to REQ-SF-001, beside the Lean certificate for the rate limiter with its wfAll, structEqExact and step-equivalence theorems.

Safety-critical embedded controlNine safety functions, from YAML requirement to certified embedded RustThe voter reference project takes nine safety functions — voting, latching, slew limiting, trip monitoring, interlocks and a flow gauge with a floating-point boundary — through all thirteen gates, and replays every one on an emulated Cortex-M4F.

The Autzen airborne-LiDAR replica in DjiniousWorld: a 110,000-gaussian splat built from the LiDAR cloud, beside analyses for change detection, terrain rasters, cloud registration, metric scaling and GCP georeferencing, each with its accuracy grade.

Reality captureOpen data in, graded replicas out: airborne LiDAR, real photographs and a laser scanDjiniousWorld was validated end to end on public datasets — the Autzen airborne LiDAR cloud, the Middlebury temple photographs and the ETH3D “pipes” scene — every step driven through the API, every result carrying the accuracy grade it earned.

DjiniousWorld Property · DVF and cadastreProperty and land valueReconcile transaction records against cadastral boundaries and publish the result as a layer the whole team reads the same way.

The DjiniousMap automations page listing event- and schedule-triggered automations with their target workflow, trigger and last run status.

Territory · isochrones and routingAccess and service coverageAnswer “what is within twenty minutes of here” for every site in a layer, and keep the answer current as the source moves.

Municipal open data · trees, cycle networks, sports facilitiesMunicipal asset inventoriesBring the small, messy, locally-published datasets together — and find out which of them can be trusted before you draw them.

The DjiniousMap studio showing BD TOPO Paris buildings extruded into a massing model under a pitched camera, looking across the Seine over Île de la Cité, Notre-Dame, the Quartier Latin and Les Halles, with a height histogram widget.

National reference data · BD TOPO® · IGNNational reference data, in three dimensionsExtrude a building layer by its own height attribute and read the city as volume rather than as outlines.

The API tokens tab of DjiniousMap settings, listing three minted MCP tokens — a laptop client, a scheduled audit and a read-only notebook — each with its creation date, last-used state and its own Revoke control.

Data governance · in-app assistant and MCPAgent-assisted catalogue reviewPut the question to an agent that can read every profile, and get an answer with the tool calls that produced it.

The AcmeRail fleet-telematics dashboard in DjiniousData: telemetry-point, speed, distance, fuel, coolant and idle-alert tiles above a live fleet map of northern France and Belgium, an operating-state donut, and per-locomotive breakdowns.

Rail fleet telematicsCondition monitoring for a vehicle fleetTurn a device feed into a fleet you can ask questions about, and a maintenance plan you can defend.

DjiniousData Document intelligenceMaking a document archive answerableA shared drive nobody can query becomes a searchable, cited corpus without a migration project.

DjiniousData Master dataOne customer view from four systems that disagreeCluster the records that describe the same organization, and keep the ones you are not sure about out of the merge.

DjiniousData Site monitoringCounting what a camera sees, not what it detectsObject detection over photos, footage and live streams, materialised as metrics you can alert on.

The Revenue overview page in DjiniousWorkflow: quarter-to-date bookings, leads scored, a pipeline hygiene gauge, a written commentary, a bookings-by-week chart and two tables.

Revenue operationsRevenue operationsInbound leads scored and routed in seconds, the pipeline swept every night, and a revenue page that rebuilds itself before the Monday meeting.

DjiniousWorkflow

The lead records page in DjiniousWorkflow, listing records written by the scoring graph with their score, band, queue and SLA.

Customer supportCustomer supportA model reads every ticket, rules do the routing, the clock is watched every quarter hour, and Friday’s digest writes itself.

DjiniousWorkflow

The Reliability page in DjiniousWorkflow: endpoints answering, worst error budget used, a written note, the latest endpoint checks, response times, the error budget per service and minutes down per day.

Site reliabilitySite reliabilityEndpoints probed in parallel, incidents opened by the failure itself, and nothing reaching a public status page without a person approving the words.

DjiniousWorkflow

A DjiniousWorkflow run suspended on a human approval, with the batch under review in the rail and Approve and Reject controls.

Finance operationsFinance operationsInvoices matched one child run each, exceptions explained rather than listed, and nothing above the delegated limit released without a signature.

DjiniousWorkflow

The Supply chain page in DjiniousWorkflow, with a map of cold-chain excursions plotted at the point where each one peaked, beside the replenishment plan and the supplier scorecard.

Supply chainSupply chainDemand joined to stock in SQL, the reorder policy in one readable node, suppliers graded on what they actually delivered, and every cold-chain excursion on a map.

DjiniousWorkflow

A DjiniousWorkflow run parked on a button drawn on the node itself: an onboarding graph waiting for somebody to confirm the desk is ready, with the checklist it published in the output pane.

People operationsPeople operationsA fortnight of small tasks with a start date, and three months of check-ins — none of it holding a process open between its moments.

DjiniousWorkflow

The full Djinborn T4 quadcopter on the DjiniousLab canvas — battery, four thrusters, hub body, arms, force injection, gyroscopic coupling, sensors, and the cascaded control stack wired as one runnable composition

Aerial roboticsDjinborn T4 quadcopterA 450-class survey drone as one multibody composition — airframe, propulsion, sensors, and a cascaded autopilot flying a closed-loop 6-DoF mission.

The UR5 6-axis robotic arm rendered in 3D at a representative mid-reach pose, showing all six revolute joints along the DH kinematic chain

Industrial roboticsUR5 6-axis manipulatorA spatial 6-DoF UR5 arm as one multibody model — closed-form inverse kinematics driving a Cartesian end-effector path through per-joint PD control with gravity feedforward.

An animated mission map of three UAVs flying a LiDAR survey of a 500-metre square near the Al-Batinah coast of Oman, with their flight paths and a mobile base marked over an OpenStreetMap basemap

UAV surveyAl-Batinah UAV LiDAR surveyPlan and optimise a LiDAR drone-fleet survey of a 500 × 500 m site in Oman — tune the mission to your fleet, drone and sensor specs, then drive an optimal mission against a simulated UAV fleet on an animated map.

A 4-cell balancing module on the DjiniousLab canvas — four equivalent-circuit cells starting at different states of charge, wired through an active charge-shuttling balancer into per-cell state-of-charge scopes

Battery systemsEV battery packAn electric-vehicle battery pack as one multi-domain model — equivalent-circuit cells, a coupled thermal network, a CC-CV charge controller and an active balancer, composed cell → module → pack and run end to end.

A PMSM traction-motor efficiency map — torque against speed coloured by efficiency, with a high-efficiency island peaking near 97% inside the torque-speed envelope

Electric vehiclesFull EV vehicleThe battery pack you sized becomes the car you drive — a complete electric vehicle over the WLTP cycle: drive cycle, traction motor, regen, the battery over the cycle, thermal, and the numbers that sell a car — range, consumption, and 0–100.

A stacked-area dispatch chart over a day — PV, wind, battery and grid combining to exactly meet the load demand

MicrogridsMicrogridSolar PV + wind + battery + grid-tie serving a load as one system under an energy-management controller — composed on a DC bus and run over a day: dispatch, self-sufficiency, peak-shaving, sizing, and islanded stability.

Two rotor-angle trajectories after a fault — one a bounded damped swing, the other diverging past the 180-degree loss-of-synchronism line

Power gridsAC grid stabilityDoes the grid survive the fault? Synchronous machines whose rotor angles must stay in step, a three-phase short circuit, and the critical clearing time that separates a recoverable swing from a blackout — the swing equation, the equal-area criterion, multi-machine stability, and the low-inertia renewables concern.

A DjiniousLab notebook plot of the cart-pole swinging up from hanging to upright and being caught by the controller at t = 7.2 s, with the control force trace

Control & reinforcement learningCart-pole control & RLThe canonical underactuated-control benchmark, taken end to end — nonlinear dynamics, an LQR that stabilises the inverted pole, energy swing-up, a model-free reinforcement-learning policy, and a Monte-Carlo robustness gate.

A DjiniousLab notebook plot of a wind turbine's power curve and effective power coefficient across the cut-in, rated and cut-out operating regions

Wind energyWind turbine & farmA multi-megawatt wind turbine and its farm — rotor aerodynamics, a two-inertia drivetrain, MPPT torque and pitch control, turbulent-load analysis, and a wake-optimised farm layout that lifts annual energy 18%.

A DjiniousLab notebook plot of an excavator dig cycle — boom, stick and bucket joint angles with the boom cylinder pressure spiking at dig-resistance contacts

Heavy machineryHydraulic excavatorA 20-tonne excavator as one multi-physics model — a planar boom/stick/bucket linkage driven by hydraulic cylinders off a load-sensing pump, from kinematics and workspace through a coupled dig cycle to breakout force and cycle energy.

A vorticity field showing alternating red and blue vortices shedding off a cylinder into a von Kármán street

Fluid dynamicsComputational fluid dynamicsSolving a partial differential equation on a grid — a velocity field over space and time. A self-contained Lattice-Boltzmann solver reproduces the most iconic result in fluid dynamics: the von Kármán vortex street shed by flow past a cylinder, validated on channel flow, the Strouhal number, drag and lift, and a lid-driven cavity.

Concentric electromagnetic wavefronts radiating outward from a point source on a grid

ElectromagneticsElectromagnetics (FDTD)Solving Maxwell's equations on a grid — the electric and magnetic fields leapfrogging through space and time. A self-contained FDTD solver reproduces the canonical wave phenomena: radiation, refraction, diffraction, scattering and cavity resonance. The field-solver sibling to CFD, in electromagnetics.

The von Mises stress field of a tip-loaded cantilever, highest at the clamped root and decaying to the free tip

Structural analysisStructural FEA & modalThe most-used simulation tool in engineering — discretize a structure into elements, solve for displacement and stress under load, and pull out its natural frequencies and mode shapes from an eigenvalue problem. Cantilever stress, mesh convergence, modal analysis, stress concentration, buckling and a real bracket.

A compressor map — pressure ratio against corrected mass flow with speed lines, a surge line bounding a shaded surge zone, and the running line passing through the operating points safely below it

PropulsionGas turbine / jet engineA single-spool turbojet on the Brayton cycle — compressor map, combustor and turbine work balance, nozzle thrust, the acceleration-surge failure mode, and off-design altitude lapse, all from first principles.

A vapor-compression cycle drawn on a pressure-enthalpy diagram, the four states traced around the two-phase saturation dome — compression, condensation, expansion, evaporation

Thermal systemsHeat pumpA vapor-compression heat pump on the refrigerant cycle — the P-h diagram, compressor and heat exchangers, the COP and its Carnot limit, how COP falls with temperature lift, and the seasonal SCOP that beats resistance heat fourfold.

A PEM fuel-cell polarization curve — cell voltage falling with current density through the activation, ohmic and concentration loss regions

HydrogenHydrogen fuel cellA PEM fuel cell from the electrochemistry up — the polarization curve and its three overpotentials, power and efficiency, an automotive stack, hydrogen consumption, thermal management, and dynamic load response.

A log-scale plot of reactor power after a reactivity insertion — running away without feedback, but self-limiting to a bounded level once Doppler temperature feedback is included

Nuclear powerNuclear reactorA reactor's neutronics from first principles — six-group point kinetics with Doppler feedback and xenon-135: the prompt jump, the prompt-critical cliff, self-limiting power excursions, the post-shutdown iodine pit, load-follow, and SCRAM.

An S-shaped steady-state curve of reactor temperature against coolant temperature, with stable lower and upper branches, an unstable middle branch, and two fold points marking ignition and extinction

Chemical processChemical reactor (CSTR)An exothermic stirred-tank reactor and its nonlinear-dynamics zoo — steady-state multiplicity, ignition/extinction hysteresis, sustained limit-cycle oscillations, thermal runaway, and the feedback control that tames an open-loop-unstable operating point.

Blood glucose over a day inside the 70-180 mg/dL target band — the open loop spiking after meals while the closed loop holds the peaks down

Medical devicesArtificial pancreasA closed-loop insulin controller on a glucose-insulin physiology model — taming post-meal spikes while never causing a hypo: the meal challenge, the hypoglycemia trap, a low-glucose-suspend safety layer, and a virtual-patient cohort.

A discovered model tracking the true predator-prey oscillation three times past its training window while a black-box neural ODE drifts away

Scientific machine learningScientific ML (UDEs)Discovering missing physics from data with Universal Differential Equations — keep the physics you know, learn the gap with a neural network trained through the ODE solver, then read the learned term back as a symbolic equation that extrapolates where a black box can't.

Posterior distributions of two parameters with their correlated joint density and a well-mixed MCMC trace

Uncertainty quantificationBayesian inference & UQNot a single answer — a distribution over answers, with calibrated confidence. Markov-Chain Monte Carlo fits a model to noisy data and quantifies how sure you should be: posteriors that match the closed form where one exists, credible bands on predictions, model comparison, and a coverage check.

A fused GPS+IMU estimate tracking an S-shaped path through a GPS dropout while raw GPS scatters noisily around it

State estimationState estimationRecovering hidden state from noisy sensors with the Kalman family — linear KF, EKF and UKF, then GPS+IMU sensor fusion that holds a track straight through a GPS dropout, an EKF battery State-of-Charge estimator, and the consistency and outlier-rejection machinery that says when a filter can be trusted.

A field-oriented torque command tracked crisply while the flux current stays pinned at zero — decoupled torque control

Power electronicsPower electronics & FOCFrom raw switching power electronics to smooth torque: a PWM buck converter and its averaged model, the PMSM dq machine, field-oriented control decoupling torque from flux, carrier PWM, a cascade speed loop, and field weakening — the inverter and control layer under an EV powertrain.

A native PID controller tracking a setpoint on an imported vendor FMU plant through the FMI interface

Co-simulationFMI co-simulationImporting and co-simulating vendor models through the FMI standard — load a Dymola FMU and run it, cross-validate it against a native model, wrap your own controller around the black box through the FMI interface, couple it into a larger system, and quantify the co-simulation error.

A constrained MPC settling with no overshoot while a saturating LQR overshoots, with the input held inside its limit band

Optimal controlModel predictive controlPutting an optimizer inside the control loop — plan over a horizon subject to hard constraints. The LQR baseline, the correctness anchor that unconstrained MPC equals LQR, constraint handling where LQR saturates and overshoots, offset-free tracking, and a real HVAC zone.

A DjiniousLab notebook timeline of 24 satellite passes over Toulouse across a 24-hour window, each pass coloured by peak elevation

Space systemsSatellite constellationA 24-satellite Walker constellation, designed end to end — orbit propagation with J2, ground tracks and coverage, ground-station contact windows, a fleet-sizing trade, and a verification gate, all over a 3D globe.

A DjiniousLab notebook plot of a rocket's gravity-turn ascent trajectory — downrange against altitude — with the main-engine cutoff point marked

Launch vehiclesReusable rocketA reusable launch vehicle from liftoff to landing — gravity-turn ascent, staging, a propulsive suicide-burn touchdown, a thrust-vector attitude loop, and a 500-trial landing-dispersion analysis, the descent flown over a 3D globe.

DjiniousLab $Three software-in-the-loop plots — altitude, attitude and position — where the code-generated Rust firmware (dashed) tracks the DjiniousLab model (solid) to within a fraction of a percent$ Embedded code generationModel → Rust firmwareModel-based design to deployable code, the Rust-first way — an autopilot designed as block diagrams, code-generated to #![no_std] Rust, proven equivalent to the model, cross-compiled to a Cortex-M target, and attested for provenance.

Range-compressed azimuth smears on the left collapsing into three sharp focused point targets on the right after backprojection

Radar imagingSynthetic aperture radarForming a focused radar image from raw returns — the chirp and pulse compression, the raw phase-history smear, backprojection focusing that beats the real antenna beamwidth, autofocus, and then the focusing kernel emitted as memory-safe Rust and cross-compiled to commodity ARM.

A topology-optimized cantilever — a black truss of material on a white void, clamped at the left and braced to a tip load

Structural designTopology optimizationDon't design the part — let the optimizer discover it. Given a load, supports and a material budget, topology optimization decides where to put material to make a structure as stiff as possible, growing the organic, truss-like forms of generative design. FEM in the loop with adjoint sensitivities.

A traffic spacetime diagram with dark jam-wave bands propagating backward through streams of fast-moving cars

Discrete-event simulationDiscrete-event & agent-basedThe other kind of simulation — systems that jump at discrete events and agents that follow simple rules. Queues validated against queueing theory, a manufacturing line and its bottleneck, and traffic jams that emerge from nothing: the event-driven and agent-based paradigm, not differential equations.

A Monte-Carlo option-price estimate converging onto the Black–Scholes line as the number of simulated paths grows, with a shrinking confidence band

Quantitative financeStochastic & quant financeSimulation driven by randomness — Brownian motion, stochastic differential equations and Monte Carlo. Option prices that converge to Black–Scholes, variance reduction, path-dependent exotics, the Greeks, Value-at-Risk, and a volatility smile: the stochastic-calculus paradigm nothing else in the portfolio touches.

An envelope-spectrum plot with a sharp peak at the bearing outer-race fault frequency (108 Hz) and its harmonics, recovered from a vibration signal where the fault was buried

Condition monitoringPredictive maintenanceA digital twin that hears a bearing fail before it does — synthetic vibration, envelope analysis, a kurtogram, a neural classifier, and a remaining-useful-life estimate, on one rotating-asset model.

A grouped bar chart on a dark background comparing AUC by feature family (FFT, STFT, CWT, DWT and two others) across four fault classes — CWT-scale wins outright only on the partial-discharge class

Condition monitoringAcoustic failure predictionA single standoff microphone and a continuous-wavelet-transform diagnostic stack on a substation power transformer — time-frequency signal processing, a six-family feature bake-off, and a health-index / RUL prognostics pipeline with honestly measured uncertainty, reported with the misses left in.