FISHERIES. MARINE
Underwater Depth & Temperature Logger for Crab Harvesting.
HARDWARE | FIRMWARE | MOBILE/WEB APPS | EMS MANUFACTURING
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.
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: 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.
Project Tech Stack
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.
Automatic 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.
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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