Plant Light Index Calculation for Effective PPFD Assessment
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Solution Overview
Problem
Existing light measurement technologies, such as the light quantum meter, provide indices that are not specific to the measurement target, limiting their effectiveness in assessing light utilization for plants.
Innovation Solution
An information processing device and method that calculates an effective index representing the degree of light utilized by a measurement target, using sensed data to determine the photosynthetic photon flux density (PPFD) effectively utilized by plants, considering environmental factors like temperature, humidity, and CO2 levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a light quantum meter measures photon flux density effective in photosynthesis, then the measurement is useful for plant photosynthesis assessment, but the measured index cannot be applied to other measurement targets
Solution Approach 1:
The patent changes the measurement parameter from a fixed photosynthesis-specific index to a multi-parameter system that includes both the photosynthesis effective index and a spectral distribution parameter. This allows the system to adapt to different measurement targets by adjusting which parameters are calculated and used, resolving the contradiction between measurement reliability for photosynthesis and adaptability to other targets.
Solution Approach 2:
The patent creates a universal measurement system that can serve multiple functions: it can measure photosynthesis effective photon flux density for plants, and simultaneously provide spectral distribution information that can be used for other measurement targets. The calculation unit is designed to compute multiple indices from the same sensor data, making the device universally applicable while maintaining specialized measurement capabilities.
2Ease of operation
If a fixed measurement index is used for photosynthesis, then the measurement is simple and straightforward, but it cannot accurately represent light utilization for different measurement targets
Solution Approach 1:
The patent implements partial action by calculating only the necessary indices based on the measurement target. The calculation unit can compute the photosynthesis effective photon flux density index when needed, and additionally compute spectral distribution parameters when other measurement targets are involved. This approach maintains simplicity for basic photosynthesis measurements while providing enhanced precision when required, without always performing all calculations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the determination of an effective PPFD value that accurately represents the amount of light contributing to plant growth, overcoming the limitations of general light measurement indices by accounting for specific environmental and plant conditions.
Implementation Method 1
a measured value regarding the measurement target obtained by sensing performed by a sensor
Data Source
AI summary
The present technology relates to an information processing device capable of obtaining an index effective for a measurement target as an index related to light incident on the measurement target, an information processing method, and a program. The information processing device can obtain an index effective for a measurement target as an index regarding light incident on the measurement target by calculating an effective index representing the degree of light effectively utilized for the measurement target in incident light as an index regarding the light incident on the measurement target, on the basis of a measured value regarding the measurement target which is obtained by sensing performed by a sensor. The present technology can be applied to, for example, an apparatus calculating an index of plants.