MODRON: A Scalable and Interoperable Web of Things Platform for Structural Health Monitoring

Two-way Integration of Service-Oriented Systems-of-Systems with the Web of Things

“…All WTs created by WAE are automatically registered in a Thing Directory (e.g., MODRON [12]), ensuring that the WTs can be discovered and managed within the WoT ecosystem. Moreover, MODRON allows users to search, list, and query the instantiated WTs in a friendly Web dashboard.…”

A Toolchain Architecture for Condition Monitoring Using the Eclipse Arrowhead Framework

“…Additionally, to provide sensor data persistence via the MODRON platform [7]; 2) Integrate third-parties legacy sensor tools -in our case, a Gas Sensor -to increase the quality and quantity of information gathered from the scenario; 3) Automate the configuration of the sensors according to internal and external factors. The overall architecture of the use case is shown in Figure 1: the remainder of the Section is dedicated to outlining the complex interactions between the components, which are then explored individually in Section IV.…”

“…The sensing element consists of a MEMS-based iNemo inertial measurement unit released by STMicroelectronics, capable to capture dynamic measurements in quite a broad frequency range, while the core element of the sensor node is given by an STM32F303 microcontroller unit featuring a floating point unit for optimized digital signal processing functionalities; for a detailed hardware description of the SN, readers are referred to [13]. The processing flow is organized as follows [7]: once signals are sensed by the peripheral node, information is then transmitted to the bridge controller through the companion gateway network interface acting as a CH. Next, each of the sensors is abstracted into a WT, which acts as a virtual proxy and exposes data in the form of properties.…”

“…MODRON is a software framework for sensor-to-cloud data gathering and management in SHM scenarios [7]. The system leverages the W3C WoT standard to support multisource data acquisition from heterogeneous sensors, which may use different protocols and sensing principles.…”

“…As a result, the proposed CM is capable of: (i) supporting the integration of sensors with external IoT frameworks, such as the Eclipse Arrowhead framework, to be part of wider ecosystems and be easily managed by Orchestration facilities, (ii) integrating third-party sensors via a seamless and straightforward on-boarding procedure, and (iii) potentially adjusting the parameters of such sensors without on-site intervention. We validate the efficacy of the toolchain through selected experiments and report the observed system behavior utilizing the MODRON [7] dashboard.…”