Orbital Critical Systems has been selected by the Centre for the Development of Industrial Technology (CDTI) to participate in a project under the EEA GRANTS scheme OPENPREDICTION, entitled “REAL-TIME, OPEN AND REMOTE OFF-SHORE WIND FARMS PREDICTIVE HEALTH MONITORING”.
The aim of the project is to design and implement a predictive maintenance system that results in a substantial reduction in unavailability (outage) time of wind farms, with a particular impact on offshore implementations, and significant reduction in operation and management costs (O & M).
Orbital Critical Systems reuses its deep know-how in mission-critical avionics and real-time systems to develop highly reliable software and new hardware. This will allow real-time, high-resolution remote monitoring of all sensor parameters for the maintenance of a wind turbine. Such parameters are:
To acquire information from all sensors, it will obviously be necessary to establish a communication network of sensors that are able to share all the collated information in a reliable and timely manner. Wireless transmission of information from the sensors will be achieved through the use of DASH-7 technology. This is an Open-Source RFID standard for wireless sensor networks (WSN) which operates in the free band of 433 MHz. It is therefore a low-power technology that ensures a battery life of several years from the time of deployment. The theoretical range of operation is up to 2 km and can be used for geo-localization (indoor and outdoor) to an accuracy of 1 meter. It also provides a bandwidth of 200 kbit / sec.
Data exchange between the receiving device and the server is performed via a FTDI-USB cable. Due to the similarities of the FTDI connector with RS232, a RS422 bus is used to connect the receiving device to the server .