광합성 광계 II(Photosystem II) 물 산화 착물 & 1,000Hz 0-Alloc C# 엽록소 형광(OJIP) 전자전달 서보 제어기

using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;

namespace ZeliDesk.Stem.PlantBioPhysics
{
    /// 

    /// 1ms 엽록소 형광 광검출기 샘플 프레임
    /// 
    [StructLayout(LayoutKind.Sequential)]
    public readonly struct ChlorophyllFluoFrame
    {
        public readonly uint TimeMs;
        public readonly float FluorescenceVolts;
        public readonly float ActinicLightIntensityUmols;

        public ChlorophyllFluoFrame(uint ms, float volts, float light)
        {
            TimeMs = ms;
            FluorescenceVolts = volts;
            ActinicLightIntensityUmols = light;
        }
    }

    /// 

    /// 1,000Hz 0-Alloc 광계 II OJIP 형광 키네틱스 분석 서보 엔진
    /// 
    public ref struct PhotosystemIiOjipServo
    {
        private float _f0;
        private float _fJ;
        private float _fI;
        private float _fm;
        private bool _measuring;

        public PhotosystemIiOjipServo(bool initialize = true)
        {
            _f0 = 0.150f;
            _fJ = 0.350f;
            _fI = 0.650f;
            _fm = 0.850f;
            _measuring = false;
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public bool ProcessTick(in ChlorophyllFluoFrame frame, out float quantumYieldFvFm, out float qaReductionVj, out float ledDimmingRatio)
        {
            // 1. OJIP 타임스탬프 기반 형광 포인트 래칭 (0-Alloc)
            if (frame.TimeMs == 0)
            {
                _f0 = MathF.Max(0.01f, frame.FluorescenceVolts);
                _fm = _f0;
                _measuring = true;
            }
            else if (frame.TimeMs == 2)
            {
                _fJ = frame.FluorescenceVolts;
            }
            else if (frame.TimeMs == 30)
            {
                _fI = frame.FluorescenceVolts;
            }

            if (frame.FluorescenceVolts > _fm)
            {
                _fm = frame.FluorescenceVolts;
            }

            // 2. 최대 광화학 수율 Fv/Fm 산출
            float fv = MathF.Max(0.0f, _fm - _f0);
            quantumYieldFvFm = (_fm > 1e-4f) ? (fv / _fm) : 0.0f;

            // 3. QA 환원 분율 VJ 산출
            float fvJ = MathF.Max(0.0f, _fJ - _f0);
            qaReductionVj = (fv > 1e-4f) ? (fvJ / fv) : 0.0f;

            // 4. 광저해 스트레스 방지 스마트 조명 디밍 피드백
            if (quantumYieldFvFm < 0.70f || qaReductionVj > 0.65f)
            {
                // 스트레스 감지: LED 광량 40% 감광
                ledDimmingRatio = 0.60f;
                return false;
            }

            ledDimmingRatio = 1.00f; // 최적 상태
            return true;
        }
    }
}