FISHERIES. MARINE
Underwater Depth & Temperature Logger for Crab Harvesting
Project Overview
Designed a robust and power-efficient underwater depth and temperature logging device to assist in identifying optimal crab harvesting zones. The system captures geo-tagged environmental data during dives and syncs with mobile or asset tracking platforms for analysis and strategic planning.
HARDWARE | FIRMWARE | MOBILE/WEB APPS | EMS MANUFACTURING
Client Requirement & Objectives
Environmental Data Logging for Crabbing
Crabs of certain species require specific underwater temperatures; hence, logging temperature data at various depths helps locate ideal harvesting zones.
Sensor-Based Logger Device
Developed a device equipped with depth and temperature sensors capable of transmitting data to a mobile app or asset tracker post-dive.
Geo-Location Tagged Data
T Each dive log includes corresponding geo-location information to map crab population density against environmental variables.
Ease of Use for Divers
Divers use the device during expeditions to automatically record environmental parameters and upload them after surfacing, simplifying the workflow.
System Design & Build
Depth-Triggered Auto-Logging
The device is programmed to initiate logging when submerged past a certain depth threshold and stop logging once it resurfaces.
Wireless Communication Interface
Implements BLE connectivity to sync dive logs with mobile apps or asset tracking systems for further cloud-based processing and visualization.
Power Efficient Architecture
Custom firmware minimizes power draw by keeping the device in deep sleep mode when not underwater and activating sensors only during dives.
Onboard Flash Storage
Equipped with sufficient flash memory to log multiple dive sessions, including timestamp, depth, temperature, and location metadata.
Key Challenges & Solutions
Power Consumption Optimization
To enable multiple dive recordings without frequent recharging, the firmware dynamically switches between active sensing and low-power sleep states.
HAutomatic State Management
Designed the system to detect submersion and initiate recordings automatically, ensuring no manual intervention by the diver mid-dive.
Memory Management and Data Sync
Created a smart memory partitioning system that marks transferred dives for deletion and manages new data recording without overwriting essential logs.
Project Tech Stack
Nordic
Micron
AMSYS
Android
iOS
React
Django
Client
Succorfish is a technology company that aims to offer precise, dependable, and cost-effective monitoring technology that can operate in the most extreme and remote locations on earth.
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