Fig 1.
Controlled light environment plant electrical detection experiment platform.
Fig 2.
Sansevieria in the controlled light environment.
Table 1.
Changes in the time domain under different illumination statistical characteristic parameters in the Sansevieria.
Fig 3.
The value of peak to peak, mean, variance and mean square with illumination variation in Sansevieria diagram.
Fig 4.
Q-Box CO650 plant CO2 analysis package monitoring the intensity of photosynthesis in Sansevieria diagram.
Table 2.
The relationship between CO2 exchange rate and the intensity of photosynthesis monitoring by Q-Box CO650 Plant CO2 Analysis Package.
Fig 5.
Power spectrum estimation map on six different light conditions.
Fig 6.
Signal energy distribution on six different light contribution diagram.
Fig 7.
Short–time Fourier transform under six different light conditions.
Fig 8.
Time and frequency domain of wavelet transformation on six different light conditions.
Fig 9.
Light condition 1–6 Decomposition of signal based on wavelet.
Fig 10.
Light condition 1(3615Lux)-Spectrum of each scale coefficient after signal decomposition.