How many LiDARs are needed for interactive wall projection?

To determine how many LiDAR units are needed for wall interactive projection using the POE LiDAR M1 and POE LiDAR F1, we need to consider their operational radii and the coverage area required for effective interaction.

Specifications of LiDAR Units

• POE LiDAR M1:
  • Practical radius: 4 meters
  • Maximum radius: 12 meters

POE LiDAR M1

• POE LiDAR F1:
  • Practical radius: 7 meters
  • Maximum radius: 12 meters

Coverage Calculation

1. Determining the Area Covered by Each LiDAR:
   • The area covered by a single LiDAR can be calculated using the formula for the area of a circle:
     A=πr2A=πr2
   • For the M1 at its practical radius of 4 meters:
     AM1=π(42)≈50.27 m2AM1​=π(42)≈50.27 m2
   • For the F1 at its practical radius of 7 meters:
     AF1=π(72)≈153.94 m2AF1​=π(72)≈153.94 m2
2. Determining Total Coverage Needed:
   • The total coverage area required for effective interaction will depend on the specific dimensions of the space where the interactive projection is set up. For example, if you need to cover a wall that is 10 meters wide and 3 meters high, the area would be:
     Atotal=10×3=30 m2Atotal​=10×3=30 m2
3. Calculating Number of LiDARs Needed:
   • Using the coverage areas calculated above, you can determine how many units are needed.
   • For the M1:
     NM1=AtotalAM1=3050.27≈0.60NM1​=AM1​Atotal​​=50.2730​≈0.60

     This means one M1 unit is sufficient for a wall of this size, but to ensure full coverage and account for any overlaps or blind spots, it may be prudent to use two units.

   • For the F1:
     NF1=AtotalAF1=30153.94≈0.19NF1​=AF1​Atotal​​=153.9430​≈0.19

     Thus, one F1 unit would easily cover this area with significant overlap.

Conclusion

• For a typical wall interactive projection setup requiring coverage of approximately 30 m²:
  • One POE LiDAR M1 would suffice, but using two could enhance reliability.
  • One POE LiDAR F1 would be more than adequate to cover this area.

The choice between using one or multiple units will ultimately depend on factors such as desired redundancy, accuracy, and specific environmental conditions (e.g., potential obstructions or reflective surfaces).