Budget-Friendly Raspberry Pi-Powered Chart Plotter Using Open Plotter Software
Building a Boat Navigation System with Raspberry Pi and Open Plotter
In this guide, we delve into creating a cost-effective and advanced boat navigation system using a Raspberry Pi and Open Plotter. The system includes a chart plotter and an Automatic Identification System (AIS) for enhanced safety at sea.
What You'll Need
To construct this system, essential components include:
- A Raspberry Pi (preferably the latest version)
- An AIS receiver (e.g., USB dongle or HAT like the dAISy HAT)
- A VHF antenna
- A GPS module
- A display (touchscreen monitor or HDMI-compatible screen)
- A 12V marine power supply
Setting Up Your System
First, install the Raspberry Pi OS on a microSD card. Next, install Open Plotter, a collection of software designed for marine navigation on Raspberry Pi. To configure your system, connect the AIS receiver, antenna, GPS module, and display. AIS signal and GPS data will be automatically detected and configured by Open Plotter.
Chart Plotting Functionality
For chart plotting, OpenCPN, an open-source chart plotter software, can be integrated with Open Plotter. Download charts compatible with OpenCPN and configure data sources for AIS and GPS in OpenCPN.
Network and SignalK
To manage and distribute data from sensors, SignalK, an open-source marine data interface, can be used. Additionally, Node-RED, an open-source programming tool for event-driven programming, can be used for custom automation and data processing.
Integration and Usage
Data flows from the AIS and GPS through Open Plotter, SignalK, and is displayed on OpenCPN. The user interface offers easy navigation and route planning. Ensure your system receives power safely from the boat's electrical system.
Example Setup Summary
- Connect the Raspberry Pi to the AIS receiver, antenna, GPS module, and display.
- Configure AIS, GPS, and chart plotting software like OpenCPN.
- Power the system safely from the boat's electrical system.
Additional Notes
- Open Plotter provides a SignalK-powered dashboard for monitoring all sensors and data.
- Most of the setup requires minimal programming; Open Plotter and OpenCPN handle most configuration.
- Regularly update charts and software and consider a backup navigation system for critical passages.
With this navigation system, sinkers, cruisers, and yachtsmen can track their position on maps and stay aware of other vessels’ movements for safer voyages.
- For an enhanced onboard experience, gadgets like a touchscreen monitor or HDMI-compatible screen can be integrated with the navigation system for displaying maps and other marine-related data.
- To complement the boat navigation system, this project can be further enriched with technology such as SignalK and Node-RED, enabling custom automation, data processing, and seamless data distribution from sensors.
