DEV Community· Pavan Kumar Sadashiv·· 3 小時前AI 評分30
MATSYA-Node 單艘原型的硬件組件數量與採購清單
MATSYA-Node: Exact Hardware Component Count & Procurement Checklist
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MATSYA-Node 的單艘原型需要 25 件實體零件，包括 13 件電子項目及 12 件結構項目，分佈於甲板邊箱、濕式感測器艙、漁網深度夾及供電互連部分。清單列出 Raspberry Pi Zero 2W、YOLOv8-seg、LoRa 模組及水温、濁度和深度感測器等組件，並提供採購清單。
正文
MATSYA-Node: Exact Hardware Component Count (1 Prototype Unit)
To build one fully functional, field-deployable MATSYA-Node prototype for the competition, you need exactly 11 core electronic components/modules across the 3 physical assemblies, plus standard mounting and cabling hardware.
1. Quick Numerical Summary
| Section / Physical Location | Core Electronics Count | Auxiliary / Structural Items | Subtotal Parts |
|---|---|---|---|
| A. Deck Edge Box (Above Water) | 6 modules | 4 items | 10 items |
| B. Wet Sensor Pod (In Water 0.5m–1m) | 3 sensors | 3 items | 6 items |
| C. Net Depth Clip (In Water with Net) | 2 sensors/switches | 2 items | 4 items |
| D. Power & Interconnect Wiring | 2 power modules | 3 cables/connectors | 5 items |
| TOTAL FOR 1 BOAT NODE | 13 electronic items | 12 structural items | 25 physical parts |
2. Complete Component-by-Component Count & Specifications
Section A: Deck Edge Box (Mounted Above Deck, IP67 Sealed)
Location: Clamped to rear cabin overhang, canopy pole, or winch stanchion.
| # | Item Name | Specific Model / Part | Qty | Exact Role in MATSYA-Node |
|---|---|---|---|---|
| 1 | Single-Board Computer | Raspberry Pi Zero 2W (or ESP32-S3) | 1 | System brain; runs YOLOv8-seg, sensor logging, LoRa stack |
| 2 | Flash Storage | SanDisk Industrial 32GB MicroSD Card | 1 | OS, offline database (SQLite), and pre-cached PFZ maps |
| 3 | Camera Module | Sony IMX219 (8MP, 120° Wide-Angle) | 1 | Overhead deck vision for catch species & biomass |
| 4 | Camera Ribbon Cable | 15-pin to 22-pin RPi Zero Camera Cable (30cm) | 1 | Connects IMX219 to Pi Zero 2W CSI bus |
| 5 | GPS Receiver Module | u-blox NEO-M8N with ceramic antenna | 1 | Tracks boat position, heading, and speed (knots) |
| 6 | 6-DOF IMU Sensor | InvenSense MPU6050 (I2C) | 1 | Measures roll/pitch & engine vibration for boat state |
| 7 | Long-Range Mesh Radio | Semtech SX1262 LoRa Module (865–867 MHz) | 1 | Boat-to-boat mesh communications & emergency SOS |
| 8 | LoRa Antenna | 868 MHz 3dBi Rubber Duck Antenna (SMA) | 1 | RF signal transmission over 5–15 km water range |
| 9 | Main Enclosure | IP67 ABS/Polycarbonate Weatherproof Junction Box (150x100x70mm) | 1 | Shields electronics from salt spray, rain, and humidity |
| 10 | Mounting Hardware | 316 Stainless Steel C-Clamp / Rail Bracket | 1 | Tool-less 60-second clamping onto boat structure |
Section B: Unit 1 — Wet Sensor Pod (Continuously Submerged 0.5m–1m)
Location: Suspended over gunwale or clamped to stern transom bracket.
| # | Item Name | Specific Model / Part | Qty | Exact Role in MATSYA-Node |
|---|---|---|---|---|
| 11 | Water Temperature Sensor | Maxim DS18B20 (Grade 316 SS waterproof sheath) | 1 | Reads Sea Surface Temperature (SST) for thermal fronts |
| 12 | Optical Turbidity Sensor | TS-300B Turbidity Sensor Probe (940nm) | 1 | Measures water clarity / plankton upwelling density |
| 13 | Acoustic Sensor Element | Piezoelectric Disc (27mm, Lead Zirconate Titanate) | 1 | Passive underwater acoustic and engine noise listening |
| 14 | Immersion Wake-Up Electrodes | Gold-plated brass pins / header terminals | 2 | Saltwater conductivity switch for auto-wake |
| 15 | Pod Casing | Hydrodynamic POM Delrin / PETG Bullet Casing | 1 | Streamlined housing; ballasted with SS nose weight |
| 16 | Potting Compound | 2-Part Marine Epoxy / Polyurethane Resin (100ml) | 1 | Solid internal potting (no air gaps to crush) |
Section C: Unit 2 — Net Depth Clip (Attached to Fishing Net)
Location: Clipped with carabiner to headrope, wing, or cod-end of the net.
| # | Item Name | Specific Model / Part | Qty | Exact Role in MATSYA-Node |
|---|---|---|---|---|
| 17 | Sub-Surface Pressure & Depth | TE Connectivity MS5837-30BA (I2C, 30 bar) | 1 | Automatic net-drop trigger & net depth profiling (to 300m) |
| 18 | Thermocline Temp Sensor | Micro NTC / onboard MS5837 thermal element | 1 | Measures deep-water temperature at fishing depth |
| 19 | Clip Enclosure | Heavy-duty polyurethane cylindrical capsule (30x75mm) | 1 | Withstands net winch pressure and bottom dragging |
| 20 | Net Attachment Clip | 316 Stainless Steel Spring Snap Carabiner (60mm) | 1 | Quick attachment to net headrope ropes |
Section D: Power Delivery & Interconnects
Location: Inside deck box and connecting wet pods to deck.
| # | Item Name | Specific Model / Part | Qty | Exact Role in MATSYA-Node |
|---|---|---|---|---|
| 21 | Internal Buffer Battery | 3.2V 10,000mAh LiFePO4 Cell (or 18650 4S pack) | 1 | Safe, heat-resistant power buffer (18+ hours runtime) |
| 22 | DC-DC Step-Down Buck | LM2596 / MP1584 12V-to-5V 3A Step-Down Board | 1 | Steps down 12V boat battery tap or solar input to 5V |
| 23 | Solar Trickle Panel (Optional) | 10W 12V Monocrystalline Solar Panel with bracket | 1 | Self-charging when boat engine is shut off |
| 24 | Marine Umbilical Cable | 4-Core Polyurethane (PUR) Cable with Kevlar core (2.5m) | 1 | Fuel, UV, and saltwater-proof tether from wet pod to deck |
| 25 | Deck Waterproof Connector | Weipu SP13 / M12 4-Pin IP68 Circular Connector | 1 | 5-second quick disconnect for cleaning or stowing |
3. Procurement Checklist for Team Lab Build
When placing your order on Indian electronics sites (Robu.co.in, QuartzComponents, DigiKey, or local Mangaluru/Bangalore SP Road shops), here is your direct shopping list:
[ ] 1x Raspberry Pi Zero 2W (Header pre-soldered)
[ ] 1x 32GB Class 10 / A1 SanDisk MicroSD Card
[ ] 1x Raspberry Pi Camera v2 (Sony IMX219 8MP) with 120° wide-angle lens
[ ] 1x RPi Zero Camera Cable (15-pin to 22-pin, 30cm)
[ ] 1x u-blox NEO-M8N GPS Module with active ceramic antenna
[ ] 1x MPU6050 6-Axis Gyro/Accelerometer Module
[ ] 1x SX1262 LoRa Node Module (865-867 MHz) + 868MHz Antenna
[ ] 1x Waterproof DS18B20 Temperature Probe (316 SS probe, 1m/2m cable)
[ ] 1x MS5837-30BA High-Resolution Waterproof Pressure Sensor Module
[ ] 1x TS-300B Optical Turbidity Sensor Module
[ ] 1x 27mm Piezoelectric Disc Transducer Element
[ ] 1x LM2596 DC-DC Buck Converter Module (with heatsink)
[ ] 1x 3.2V LiFePO4 Battery Cell + BMS Protection Board
[ ] 1x IP67 Weatherproof ABS Plastic Box (150 x 100 x 70 mm)
[ ] 1x Weipu SP13 4-Pin IP68 Male/Female Connector Pair
[ ] 2x PG7 Marine Cable Glands (Waterproof cord grips)
[ ] 1x Heavy-Duty 316 Stainless Steel C-Clamp (50mm–75mm jaw)
[ ] 1x 2.5m 4-Core Polyurethane/Shielded Marine Tether Cable
[ ] 1x 100ml 2-Part Transparent Marine Epoxy Resin
4. Why This Minimal Part Count Wins on the MATSYA Rubric
- Simplicity Means Reliability: Every additional component in a marine environment is a potential point of failure. Keeping the core system to just 11 active electronic modules ensures high Mean Time Between Failures (MTBF).
- Affordability: The total component cost across all 25 parts remains strictly under ₹5,500 for the prototype, proving the commercial viability required by judges for mass adoption across India's 2.5+ lakh registered fishing vessels.
- Modularity: If a cable is severed by an anchor rope, the quick-release M12 connector allows replacing just the ₹600 wet pod without replacing the ₹4,000 deck computer.
來源：DEV Community · dev.to