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5fd7795 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 | # -*- coding: utf-8 -*-
"""
CropAI Solar-Powered Smart Farm IoT Sensor Hub & LoRaWAN Telemetry Engine
Ingests continuous edge microclimate and soil moisture packets from low-power
solar ESP32 / LoRaWAN Class A field nodes (865-867 MHz India band).
Monitors:
1. Dual-depth Volumetric Water Content (VWC at 15cm & 30cm)
2. Permanent Wilting Point (PWP) Deficit & Irrigation Automation Alerts
3. Leaf Wetness Duration for Bio-Twin Spore Germination coupling
4. Solar LiPo Battery Voltage (V_bat) & Brownout Safeguards
"""
from typing import Dict, Any, Optional, List, Tuple
import logging
import time
from datetime import datetime, timezone
logger = logging.getLogger("cropai.iot_telemetry")
Tuple_Status = Tuple[str, str, str]
# =========================================================================
# In-Memory Telemetry & Device Registry Store
# =========================================================================
ACTIVE_IOT_DEVICES: Dict[str, Dict[str, Any]] = {
"NODE-SURGUJA-01": {
"device_id": "NODE-SURGUJA-01",
"name": "Paddy Field North Parcel (धान खेत उत्तरी खंड)",
"location": "Lundra Block, Surguja (C.G.)",
"crop": "Rice / धान (Swarna Sub-1)",
"hardware_type": "ESP32-S3 + Semtech SX1262 LoRaWAN Node",
"power_source": "5W Monocrystalline Solar Panel + 2500mAh 18650 Li-ion",
"registered_at": "2026-08-15T06:00:00Z",
"last_seen_utc": datetime.now(timezone.utc).isoformat(),
"status": "ONLINE",
"latest_packet": {
"battery_voltage_v": 3.94,
"solar_charging": True,
"rssi_dbm": -82,
"snr_db": 9.2,
"soil_moisture_vwc_15cm": 28.5,
"soil_moisture_vwc_30cm": 31.0,
"canopy_temp_c": 26.8,
"canopy_rh_pct": 84.0,
"leaf_wetness_pct": 40.0
}
},
"NODE-SURGUJA-02": {
"device_id": "NODE-SURGUJA-02",
"name": "Vegetable & Tomato Patch (टमाटर बाड़ी)",
"location": "Ambikapur Rural, Surguja (C.G.)",
"crop": "Tomato / टमाटर (Abhilash)",
"hardware_type": "ESP32-C3 + SX1262 LoRaWAN Node",
"power_source": "5W Solar Panel + 2500mAh 18650 Li-ion",
"registered_at": "2026-09-01T08:30:00Z",
"last_seen_utc": datetime.now(timezone.utc).isoformat(),
"status": "ONLINE",
"latest_packet": {
"battery_voltage_v": 3.86,
"solar_charging": True,
"rssi_dbm": -89,
"snr_db": 7.8,
"soil_moisture_vwc_15cm": 22.0,
"soil_moisture_vwc_30cm": 25.4,
"canopy_temp_c": 27.5,
"canopy_rh_pct": 76.0,
"leaf_wetness_pct": 25.0
}
}
}
def evaluate_moisture_status(vwc_pct: float) -> Tuple_Status:
"""Evaluates soil moisture status against agronomic thresholds."""
if vwc_pct <= 14.0:
return "PERMANENT_WILTING_POINT", "अत्यधिक सूखा - पौधे मुरझा रहे हैं!", "Critical drought stress below permanent wilting point"
elif vwc_pct < 20.0:
return "MOISTURE_DEFICIT", "हल्की सिंचाई की आवश्यकता है", "Moisture deficit; schedule irrigation within 24h"
elif vwc_pct <= 35.0:
return "OPTIMAL_FIELD_CAPACITY", "मिट्टी में आदर्श नमी है", "Optimal field capacity; robust root uptake"
else:
return "SOIL_SATURATED", "खेत में पानी भरा है", "Soil saturation / flood conditions"
def ingest_telemetry_packet(packet: Dict[str, Any]) -> Dict[str, Any]:
"""
Ingests and validates raw telemetry transmission from field node:
1. Validates physical sensor ranges.
2. Evaluates Permanent Wilting Point (PWP) deficit.
3. Checks battery voltage against brownout thresholds.
4. Triggers emergency agricultural alerts.
"""
device_id = packet.get("device_id", "NODE-SURGUJA-UNKNOWN")
v_bat = float(packet.get("battery_voltage_v", 3.7))
solar_chg = bool(packet.get("solar_charging", False))
rssi = int(packet.get("rssi_dbm", -90))
snr = float(packet.get("snr_db", 6.0))
vwc_15 = float(packet.get("soil_moisture_vwc_15cm", 25.0))
vwc_30 = float(packet.get("soil_moisture_vwc_30cm", 28.0))
temp = float(packet.get("canopy_temp_c", 26.0))
rh = float(packet.get("canopy_rh_pct", 75.0))
wetness = float(packet.get("leaf_wetness_pct", 30.0))
# Evaluate moisture status
moist_code, moist_hi, moist_en = evaluate_moisture_status(vwc_15)
# Battery health
if v_bat < 3.4:
batt_status = "BROWNOUT_WARNING"
batt_desc = "बैटरी कम (Low Battery < 3.4V) - रेडियो पावर सेव मोड सक्रिय"
elif v_bat >= 4.0:
batt_status = "FULLY_CHARGED"
batt_desc = "सोलर से पूर्ण चार्ज (Fully Charged)"
else:
batt_status = "HEALTHY_NORMAL"
batt_desc = "बैटरी स्वस्थ (Healthy Nominal)"
# RF link health
rf_health = "EXCELLENT" if rssi >= -80 else ("GOOD" if rssi >= -95 else "WEAK_MARGINAL")
# Generate automated alerts
active_alarms = []
if moist_code == "PERMANENT_WILTING_POINT":
active_alarms.append({
"alarm_type": "CRITICAL_SOIL_DROUGHT",
"message_hi": "🚨 तत्काल सिंचाई करें! 15 सेमी गहराई पर मिट्टी की नमी 14% से नीचे आ गई है।",
"message_en": "Critical Soil Drought: VWC at 15cm is <= 14%. Activate irrigation immediately."
})
if temp <= 2.0:
active_alarms.append({
"alarm_type": "FROST_CANOPY_DROP",
"message_hi": "❄️ पाला अलर्ट: कैनोपी का तापमान 2°C से नीचे गिर गया है। धुआं व रात्रि पानी चालू करें!",
"message_en": "Nocturnal freezing drop: Canopy temp <= 2.0°C. Deploy thermal mitigation."
})
if wetness > 80.0 and (24.0 <= temp <= 28.0):
active_alarms.append({
"alarm_type": "BIOTWIN_FUNGAL_SPORULATION_WINDOW",
"message_hi": "🍄 फंगस बीजाणु पनपने का अनुकूल मौसम: पत्तियां 80% से अधिक गीली हैं और तापमान 26°C है।",
"message_en": "High disease risk: Leaf wetness > 80% at 26°C indicates active fungal infection window."
})
timestamp = datetime.now(timezone.utc).isoformat()
# Update device registry
if device_id in ACTIVE_IOT_DEVICES:
ACTIVE_IOT_DEVICES[device_id]["last_seen_utc"] = timestamp
ACTIVE_IOT_DEVICES[device_id]["status"] = "ONLINE"
ACTIVE_IOT_DEVICES[device_id]["latest_packet"] = {
"battery_voltage_v": v_bat,
"solar_charging": solar_chg,
"rssi_dbm": rssi,
"snr_db": snr,
"soil_moisture_vwc_15cm": vwc_15,
"soil_moisture_vwc_30cm": vwc_30,
"canopy_temp_c": temp,
"canopy_rh_pct": rh,
"leaf_wetness_pct": wetness
}
return {
"status": "success",
"device_id": device_id,
"packet_timestamp_utc": timestamp,
"soil_moisture_assessment": {
"vwc_15cm_percentage": vwc_15,
"vwc_30cm_percentage": vwc_30,
"classification": moist_code,
"status_hi": moist_hi,
"status_en": moist_en
},
"microclimate": {
"canopy_temp_c": temp,
"canopy_rh_pct": rh,
"leaf_wetness_pct": wetness
},
"hardware_telemetry": {
"battery_voltage_v": v_bat,
"battery_health": batt_status,
"battery_description_hi": batt_desc,
"solar_charging": solar_chg,
"rf_link_rssi_dbm": rssi,
"rf_link_quality": rf_health
},
"active_alarms": active_alarms
}
def get_registered_devices() -> List[Dict[str, Any]]:
"""Returns list of registered field IoT nodes and their operational status."""
return list(ACTIVE_IOT_DEVICES.values())
def get_live_device_telemetry(device_id: str) -> Dict[str, Any]:
"""Returns live telemetry and recent status for a specific IoT node."""
device = ACTIVE_IOT_DEVICES.get(device_id)
if not device:
# Fallback simulated dynamic node
return {
"status": "device_not_registered",
"device_id": device_id,
"message": "Device not found in active registry. Ingest first packet to auto-register."
}
return {
"status": "success",
"device": device
}
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