RedNode – navigator for robots
RedNode
The RedNode navigator is part of the RedWave system. It was created specifically to determine the coordinates of underwater objects in water bodies of any complexity.
Purpose
RedNode is the universal navigation receiver of the RedWave system for underwater vehicles. It receives the signals of four floating RedBase buoys, determines its own 3D position — coordinates and depth — and passes it to the control system over UART. The receiver is acoustically passive, like a satellite-navigation receiver: an unlimited number of RedNode receivers and RedNav diver navigators can operate in the same water area at once.
Use and compatibility
The receiver emulates the protocol of ordinary GNSS receivers (RMC and GGA messages), so the vehicle's coordinates can be sent over the cable to the console and shown in any mapping software. The uGPSHub application handles buoy data and passes coordinates on over a COM port or UDP. The highest accuracy is achieved inside the figure formed by the buoys. On a flat flange, RedNode is mounted with the uClamp-S bracket, and its housing is unified with that of the RedLine modem.
Documentation
The wiring and pairing protocol are described on docs.unavlab.com: wiring diagram, protocol description.
- Requires no setup or calibration
- Extremely simple integration with PCs and mapping devices — the protocol is the same as in standard GNSS receivers
- Compact device — 64×62 mm
- Transmits the object's 3D position in absolute geographic coordinates
- Extremely low power consumption — 12 V, 75 mA
- Interference protection even in shallow water
The receiver works with the RedBase buoys of the RedWave system. It is purchased as part of a RedWave set or added to an existing one.
Quotation RequestWant access to detailed technical documentation for the device?
Documentation
- For devices manufactured after June 2020. Devices manufactured earlier use a 5 V supply.
- The value was obtained by measurement in a real body of water with the buoys and the navigation receiver fixed in place for 60 minutes.
- The value may depend on how correctly the user sets the salinity of the water.
- By agreement, the device can be supplied with an RS422 interface converter mounted on the cable in a maintenance-free urethane housing.
How RedNode works
The device receives hydroacoustic signals from RedBase buoys as part of the navigation system. The navigator determines the geographic coordinates of objects and transmits them to the robot's control system or via cable to the surface.
Simple to use
The device integrates extremely easily with virtually any underwater platform. Apply power — and get precise coordinates on every dive over the UART serial interface, with no additional setup or calibration!
Reliable operation even in difficult conditions
- A special digital broadband communication technology protects against interference even in shallow water
- Precise coordinates for any number of objects in any water area
- You get object coordinates in 3D format with an update rate of 1 Hz.
How to buy the RedNode navigator
The RedNode navigator can be purchased as part of the RedWave system, or in addition to a previously purchased RedWave kit.
Part of the system
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