Flexible Arbitrary Signal Generation and Acquisition System for Compact Underwater Measurement Systems and Data Fusion

For the implementation of compact underwater measurement systems, much time is spent integrating various sensor and processing components and their control and synchronization. Especially for multi-sensor applications, proprietary solutions do not scale easily and are not designed for use in a distributed measurement system. We propose a well-established protocol Message Queuing Telemetry Transport (MQTT) for integration of sensors with a broker as a central data hub as a key system component. We implemented a flexible, distributed multi-sensor measurement system, by using open-source libraries. The multi-sensor system was successfully tested and operated with five underwater sensor devices and user data rates up to 2.73 MB/s.