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INTERACTIVE WALL APPLICATION · 2D LIDAR
2D LiDAR for Interactive Walls
Position Detection for Large-Area, Touchless Wall Interaction
A 2D LiDAR can monitor an interaction plane associated with a wall and provide scan measurements for detecting the position of people, hands or objects. Host software processes these measurements and maps detected positions to digital wall content.
Scan
Monitor wall area
Detect
Locate targets
Map
Connect to content
02
HOW IT WORKS
How 2D LiDAR Detects Interaction Around a Wall
A 2D LiDAR continuously scans a defined plane near the interactive wall. When a person, hand or object enters that plane, the sensor provides measurement data that host software can process to determine target positions and connect physical movement with digital wall content.
01 · SCAN
Monitor the Wall Interaction Plane
The LiDAR scans a defined geometric plane positioned around the wall interaction area.
02 · DETECT
Detect Targets Entering the Plane
People, hands or objects that intersect the scan plane generate measurements that can be interpreted by the host system.
03 · PROCESS
Calculate Application-Relevant Positions
Host software processes the scan measurements and identifies target positions according to the interaction logic.
04 · MAP
Map Physical Positions to Wall Coordinates
Detected positions are transformed into the coordinate system used by the digital wall, projection or interactive application.
INTERACTIVE WALL DATA FLOW
From LiDAR Scan Measurements to Digital Response
Interactive Wall Area
Physical interaction zone
→
YB27 2D LiDAR
Raw scan measurements
→
Host PC / IPC
Target processing
→
Coordinate Mapping
Physical to digital position
→
Digital Wall Response
Graphics, content or game action
Important:
The LiDAR provides measurement data to the host system. Target
processing, coordinate mapping and the final interactive behavior
are implemented by the host software or interactive application.
03
SYSTEM ARCHITECTURE
How an Interactive Wall LiDAR System Is Structured
The LiDAR is one sensing component within the complete interactive wall system. Scan data is transferred to a host platform, where target processing and coordinate mapping connect the physical interaction area with the wall’s digital content.
TYPICAL SYSTEM DATA PATH
Sensor Data to Interactive Content
01
Person / Hand / Object
Physical target enters the monitored plane
→
02
YB27 2D LiDAR
Provides raw scan measurements
→
03
Communication Interface
Ethernet UDP or RS232 depending on model
→
04
Host Processing
Filtering, target detection and coordinate calculation
→
05
Interactive Wall Content
Projection, LED display, graphics or game logic
ETHERNET UDP
CE Models
CE models provide Ethernet UDP raw scan data and are suited to host-based systems using a PC or industrial PC for target processing and coordinate mapping.
Models
YB27-15CE / 25CE
Range
15 m / 25 m
Resolution
0.15°–0.5°
Frequency
Up to 50 Hz
HIGHER-RESOLUTION ETHERNET
HE Models
HE models provide finer angular-resolution options and are worth evaluating where denser scan sampling may support the intended wall-interaction geometry and host-side position processing.
Models
25HE / 35HE / 40HE
Range
25 m / 35 m / 40 m
Resolution
0.1°–0.5°
Frequency
Up to 50 Hz
RS232 SERIAL
CR Models
CR models provide RS232 raw scan data for embedded systems, custom controllers or installations where a serial host architecture is preferred.
Models
YB27-15CR / 25CR
Range
15 m / 25 m
Resolution
0.5° / 1° / 2°
Frequency
Up to 50 Hz
What the YB27 LiDAR Provides
- 2D scan measurements
- Distance information
- Echo intensity information
- Angular position from scan geometry
- Ethernet UDP or RS232 data interface
What the Host System Handles
- Receiving and decoding scan data
- Filtering and target identification
- Position calculation
- Wall-coordinate calibration and mapping
- Interactive graphics, content or game logic
System integration note:
YB27 does not output finished interactive-wall touch coordinates or
include the final interactive application. The host system determines
how LiDAR measurements are processed and converted into application
events.
04
SENSOR PLACEMENT
Plan the LiDAR Scan Plane Around the Interactive Wall
LiDAR placement determines where targets can be measured relative to the wall. The sensor should be positioned so its scan plane intersects the intended interaction region while maintaining useful coverage and minimizing line-of-sight obstruction.
CONCEPTUAL INSTALLATION
Align the Scan Plane with the Interaction Region
The exact mounting geometry depends on the wall size, target type, sensing objective and physical installation environment.
YB27
2D LiDAR
2D LiDAR
LiDAR Position
Defines the scan origin
Scan Plane
Defines the sensing plane
Wall Geometry
Defines coordinate mapping
01
Scan-Plane Alignment
Position the sensor so the scanning plane intersects the region where relevant people, hands or objects are expected to enter.
02
Distance from the Wall
The relationship between the scan plane and the wall surface should match the intended interaction method and target geometry.
03
Coverage
Sensor orientation should provide useful coverage across the required interaction area without assuming that every physical wall layout can be covered from the same position.
04
Occlusion
A target can block the line of sight to another target behind it. Mounting geometry should consider where people or objects may create shadowed regions.
05
Mounting Orientation
The physical orientation of the LiDAR determines the position and direction of the scan plane relative to the wall and targets.
06
Calibration Reference
The system needs a defined relationship between LiDAR coordinates and the wall’s digital coordinate system for reliable mapping.
Installation Questions to Resolve During System Design
Where will the LiDAR be mounted?
Which part of the wall must be interactive?
What target should intersect the scan plane?
How will occlusion be handled?
How will physical coordinates be calibrated?
How will the installation be validated?
Engineering note:
There is no single installation geometry that applies to every
interactive wall. Final sensor placement should be evaluated according
to wall dimensions, target characteristics, mounting constraints,
line-of-sight conditions and host-side processing requirements.
05
TARGET DETECTION
What Can 2D LiDAR Detect Around an Interactive Wall?
A 2D LiDAR measures targets that intersect its scanning plane. Depending on the installation geometry and target characteristics, the host system can use these measurements to identify the position of people, hands or objects around the interactive wall.
PEOPLE
Body Position & Movement
People entering the monitored plane can generate scan measurements that host software may use for position-based interaction, movement response or large-area digital experiences.
HANDS
Hand-Level Interaction
Hands may be detectable when they intersect the scan plane, depending on target size, distance, orientation, reflectivity, angular sampling and the final installation geometry.
OBJECTS
Physical Props & Objects
Objects can also be used as physical interaction targets when their geometry and surface characteristics provide useful measurements within the configured sensing plane.
WHAT AFFECTS DETECTION
Target Detection Depends on the Complete Geometry
Detection should be evaluated as a combination of sensor configuration, target characteristics and installation conditions, rather than as a fixed capability for every target.
Target Size
Larger targets generally intersect more of the scan geometry
than very small targets.
Target Distance
Angular spacing translates into different physical spacing
as the target distance changes.
Angular Resolution
Finer angular-resolution settings provide denser scan sampling
across the monitored area.
Surface Characteristics
Reflective behavior and target surface properties can influence
returned measurement signals.
Target Orientation
The way a target intersects the scan plane can affect how much
useful measurement information is available.
Occlusion
One person or object may block another target from the LiDAR’s
line of sight.
About Finger-Level Touch Detection
YB27 should not be presented as a guaranteed finger-level touch sensor. A hand or other target may be detected when it intersects the scan plane, but reliable detection of a specific small target depends on the complete installation and operating conditions. Application-specific performance should be validated through testing in the intended geometry.
Define the intended target type
Estimate the working distance
Select suitable angular-resolution settings
Evaluate target orientation and reflectivity
Consider line-of-sight and occlusion
Validate the actual application through testing
05
TARGET DETECTION
What Can 2D LiDAR Detect Around an Interactive Wall?
A 2D LiDAR measures targets that intersect its scanning plane. Depending on the installation geometry and target characteristics, the host system can use these measurements to identify the position of people, hands or objects around the interactive wall.
PEOPLE
Body Position & Movement
People entering the monitored plane can generate scan measurements that host software may use for position-based interaction, movement response or large-area digital experiences.
HANDS
Hand-Level Interaction
Hands may be detectable when they intersect the scan plane, depending on target size, distance, orientation, reflectivity, angular sampling and the final installation geometry.
OBJECTS
Physical Props & Objects
Objects can also be used as physical interaction targets when their geometry and surface characteristics provide useful measurements within the configured sensing plane.
WHAT AFFECTS DETECTION
Target Detection Depends on the Complete Geometry
Detection should be evaluated as a combination of sensor configuration, target characteristics and installation conditions, rather than as a fixed capability for every target.
Target Size
Larger targets generally intersect more of the scan geometry
than very small targets.
Target Distance
Angular spacing translates into different physical spacing
as the target distance changes.
Angular Resolution
Finer angular-resolution settings provide denser scan sampling
across the monitored area.
Surface Characteristics
Reflective behavior and target surface properties can influence
returned measurement signals.
Target Orientation
The way a target intersects the scan plane can affect how much
useful measurement information is available.
Occlusion
One person or object may block another target from the LiDAR’s
line of sight.
About Finger-Level Touch Detection
YB27 should not be presented as a guaranteed finger-level touch sensor. A hand or other target may be detected when it intersects the scan plane, but reliable detection of a specific small target depends on the complete installation and operating conditions. Application-specific performance should be validated through testing in the intended geometry.
Define the intended target type
Estimate the working distance
Select suitable angular-resolution settings
Evaluate target orientation and reflectivity
Consider line-of-sight and occlusion
Validate the actual application through testing
07
INTEGRATION CHECKLIST
What to Define Before Building an Interactive Wall
Before selecting the LiDAR and developing the host software, define the physical interaction area, intended targets, mounting concept and system architecture. These decisions determine how the scan data should be collected, processed and mapped to the wall.
01
Wall & Interaction Area
Define the physical wall dimensions and identify which portion needs to respond to interaction. The active interaction area may be different from the total wall size.
02
Target Type
Determine whether the application is intended to respond to people, hands, physical objects or another defined target. Target characteristics affect sensing and processing requirements.
03
LiDAR Mounting Position
Identify practical mounting locations and determine how the LiDAR scan plane can intersect the intended interaction region while maintaining useful line of sight.
04
Display Method
Define whether the wall uses projection, LED, LCD or another digital display method. This helps establish the coordinate system that must be linked to the LiDAR measurements.
05
Host Platform
Determine which PC, industrial PC, embedded controller or other processing platform will receive and process the LiDAR data.
06
Communication Interface
Choose between Ethernet UDP or RS232 according to the YB27 model, host architecture and integration requirements.
07
Coordinate Mapping
Plan how physical LiDAR coordinates will be transformed into the coordinate space used by the interactive wall content.
08
Validation Method
Define how target detection, coverage, calibration and interaction behavior will be tested under the actual installation conditions.
PREPARE FOR MODEL SELECTION
Send Us Your Interactive Wall Project Information
Providing a few basic project details helps us understand the sensing geometry and identify a suitable YB27 configuration for evaluation.
Wall Dimensions
Width, height and active interaction area
Target
People, hands or physical objects
Mounting Concept
Possible LiDAR location and scan orientation
Host System
PC, IPC or embedded controller
Interface
Ethernet UDP or RS232 preference
Display System
Projection, LED, LCD or other display
Working Distance
Expected sensor-to-target geometry
Project Objective
Required interaction behavior and sensing goal
Integration note:
YB27 provides the LiDAR measurement data. The system integrator or
application developer remains responsible for target-processing logic,
coordinate calibration and the final interactive content behavior.
08
FREQUENTLY ASKED QUESTIONS
2D LiDAR for Interactive Walls FAQ
Common questions about LiDAR sensing, installation, coordinate mapping and YB27 integration for interactive wall systems.
01
How does LiDAR work for an interactive wall?
A 2D LiDAR scans a defined plane around the wall interaction area. When a person, hand or object intersects that plane, the LiDAR provides measurement data that host software can process to determine target positions. Those positions can then be mapped to the wall’s digital coordinate system and used to control graphics, content or game logic.
02
Where should a 2D LiDAR be mounted for an interactive wall?
The LiDAR should be mounted so its scan plane intersects the intended interaction region and has useful line of sight to the expected targets. The exact position depends on wall dimensions, target type, mounting constraints, working distance and the required sensing geometry.
03
Can 2D LiDAR detect hands near an interactive wall?
Hands may be detectable when they intersect the LiDAR scan plane. Detection depends on target size, distance, orientation, reflectivity, angular resolution, installation geometry and line-of-sight conditions. Performance should be validated in the intended wall installation.
04
Can YB27 detect individual fingers as touch points?
YB27 should not be presented as a guaranteed finger-level touch sensor. Small-target detection depends on the complete sensing geometry and operating conditions. If finger-level interaction is required, the application should be tested with the intended mounting position, working distance and target behavior before final system design.
05
How are LiDAR coordinates mapped to an interactive wall?
The host system establishes a relationship between the LiDAR’s physical scan coordinates and the coordinate system used by the wall content. Calibration and transformation logic are implemented in the host software so detected physical positions can be converted into corresponding digital wall positions.
06
Which YB27 model is suitable for an interactive wall?
YB27 CE models are a practical starting point for Ethernet UDP raw-data integration. HE models provide finer angular-resolution options and longer-range variants where denser scan sampling may be useful. CR models provide RS232 raw data for serial host architectures. The final choice depends on wall geometry, working distance, interface, resolution and host processing requirements. View YB27 Raw Data models .
07
Can YB27 connect directly to interactive wall software?
YB27 provides raw LiDAR data through Ethernet UDP or RS232, depending on the model. Direct compatibility with a specific interactive software platform depends on whether that software can receive or be adapted to process the YB27 data protocol. Custom middleware or host-side integration may be required.
08
Can LiDAR be used with projection, LED or LCD interactive walls?
Yes, the sensing concept can be used with different display technologies because the LiDAR provides physical position measurements independently of the display method. The host system is responsible for mapping those positions to the coordinate system used by the projection, LED, LCD or other digital wall.
Need help evaluating an interactive wall concept?
Share the wall dimensions, intended target, mounting concept, working
distance, host platform and communication interface. We can help
identify a suitable YB27 model for evaluation.
INTERACTIVE WALL PROJECT
Planning an Interactive Wall with 2D LiDAR?
Share your wall dimensions, interaction area, intended target, mounting concept and host interface. We can help you identify a suitable YB27 model for evaluation and discuss the sensing requirements of your interactive wall system.
HELPFUL PROJECT INFORMATION
What to Send Us
Wall width, height and active interaction area
Expected target: people, hands or objects
Possible LiDAR mounting position
Approximate working distance
Host PC, IPC or embedded controller
Ethernet UDP or RS232 preference
Projection, LED, LCD or other display method
Final detection performance should be validated in the intended
installation geometry and operating conditions.