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Device Sensor Recorder

Tutorial
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Enter leaf ID, then click “Capture Sample” to record device orientation (alpha/beta/gamma), time, latitude/longitude/altitude, and computed solar elevation/azimuth. Export all data as CSV.

Before using sensors, allow motion/orientation and location access on your device.

Current Orientation

Alpha (Z, yaw):0.00°
Beta (X, pitch):0.00°
Gamma (Y, roll):0.00°

Latest Geo

Latitude:N/A
Longitude:N/A
Altitude:N/A

Status

Recorded rows: 0
Local time: 11/24/2025, 2:48:49 AM
leafIdtimestamplatitudelongitudealtitudealpha_degbeta_deggamma_degsunElevation_degsunAzimuth_deg
No data yet. Enter ID and click “Capture Sample”.

Solar Angle Formulas

Elevation (h) and Azimuth (A) computed in this app follow common remote-sensing approximations:

h = asin( sin(φ)·sin(δ) + cos(φ)·cos(δ)·cos(H) ) [in radians]
A = atan2( sin(H), cos(H)·sin(φ) − tan(δ)·cos(φ) ) [in radians]
(degrees) = (radians) × 180/π
Azimuth A is reported from North, clockwise (0..360).

Symbols:

  • φ: geographic latitude
  • δ: solar declination
  • H: hour angle (H = 15° × (solar time − 12))

Note: The implementation also includes Equation of Time (EoT) and time-zone offset to estimate apparent solar time.

Citation

If you use Digital Plant Phenotyping Platform v25.0 or any of its applications in your research, please cite it as:

LiangchaoDeng. (2025). smiler488/smiler488.github.io: Digital Plant Phenotyping Platform v25.0 (v25.0.0). Zenodo.
https://doi.org/10.5281/zenodo.17544584
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BibTeX citation (Zotero → File → Import from Clipboard)

Click to copy BibTeX to clipboard for Zotero import.
@software{Deng2025_DPPP_v25,
  author       = {Deng, Liangchao},
  title        = {Digital Plant Phenotyping Platform (v25.0)},
  year         = {2025},
  publisher    = {Zenodo},
  doi          = {10.5281/zenodo.17544584},
  url          = {https://doi.org/10.5281/zenodo.17544584},
  note         = {[Computer software]}
}