Robotics Motion Measurement
Compare observed movement with the commanded path.
Lecen’s robot trajectory measurement solution establishes external observation of tools, bodies and moving parts. Position, orientation where supported by the target setup, and time references are aligned with controller records for path deviation, repeatability and dynamic-motion analysis.
Product brand: Lecen Technology
Project goals
Commanded motion, encoder feedback and external observations are different data sources. The design places observed motion in a defined coordinate frame and time base before comparing it with reference trajectories. It supports research and validation rather than replacing the robot’s control or safety systems.
In focus
Identify whether the task concerns the tool center, flange, body or another target. Establish the transformation from a tracked rigid target to the tool; the marker center is not automatically the required measurement point.
Obtain outputs appropriate to the target component and geometry. Analyze translation, rotation and repeatability using documented frames, units and orientation conventions.
Associate external observations with controller logs and examine clock offsets and delivery latency. Matching sample rates does not, by itself, synchronize two data streams.
Record trial conditions, validity, gaps and filter settings. Retain the calculations used for velocity, acceleration or deviation so smoothed curves are not mistaken for untouched measurements.
Workflow
Both spatial and temporal references are part of a measurement setup and need verification.
Secure the target and define the body or tool reference.
Establish transforms among the volume, robot base and tool.
Capture motion and timestamps with controller or reference records.
Compare position, orientation and repeated motion while examining gaps and validity.
Integration
Use directions, curves and speeds relevant to the experiment; a stationary-point check does not replace dynamic evaluation.
Specify points, paths, speeds, volume and error definitions.
Arrange views and attachment around occlusion and mechanical movement.
Define transforms, timestamps, log association and validity handling.
Preserve observations, references, processing settings and trial results.
Configuration
| Objects | Tools, flanges, bodies or selected moving components |
|---|---|
| Spatial reference | Measurement frame, robot base and tool transformations |
| Data | Position trajectories; orientation according to target geometry and observation |
| Timing | Capture timestamps, trial IDs and controller-log association |
| Analysis | Path deviation, repeatability, dynamics and data validity |
| Records | Installation, calibration, raw observations, processing and trial results |
Applications
Compare executed and reference paths across representative speeds and loads.
Compare observed motion under repeatable tasks and different configurations.
Evaluate body trajectories within an observable test area using calibrated spatial references.
FAQ
Encoders and controllers provide internal records; external observation supplies an independent view. Align the point, coordinate frame and time before comparing them.
Not necessarily. Establish and validate the spatial transformation between them.
No. Accuracy, sample rate, end-to-end latency, visibility and calibration are separate characteristics to evaluate.
The scope here is external measurement and testing. Control integration requires separate timing, validity and safety-interlock evaluation and does not replace safety controls.
No. Specify the standard edition, method, equipment conditions and reporting requirements, then support any claim with the corresponding test results.
Project brief
Models, workspace, measured points, target placement and load.
Paths, speeds, repetitions and reference data.
Frames, timing, output format, error definitions and reporting purpose.
Explore more
Robotics Motion Measurement
Capture hand motion as reviewable experimental data.
AI-generated concept, not a product or project photograph.
Explore solution
Robotics Motion Measurement
Compare multiple moving targets in one reference frame.
AI-generated concept, not a product or project photograph.
Explore solutionTalk to Lecen
Define targets, working volume, movement speeds and required outputs to discuss observation methods and validation.