Tamper-proof black box telematics system for offshore wind cable monitoring

Abstract

A tamper-proof black box telemetry system 22 suitable for offshore wind cable (figure 1, 14) monitoring, comprises a plurality of telemetry or telematics units securely attached to offshore wind cables. Multiple sensor modules (figure 9, 34) are integrated within each telemetry or telematics unit 22 suitable for monitoring cable parameters, including temperature, strain, partial discharge, acoustic emissions, environmental conditions, six-axis vibration and orientation, and insulation resistance. Onboard microcontrollers are within each telemetry unit 22 for processing sensor data and encrypting it before transmission, as well as secure communication protocols for encrypted data transmission to a centralized monitoring system. Tamper-evident seals (figure 6A, 26), internal tamper detection sensors (figure 9, 34), and secure enclosures (figure 9, 32) are provided with each telemetry unit 22 to prevent unauthorized access or tampering.

Claims

1. A tamper-proof black box telemetry system (22) for offshore wind cable (14) monitoring, comprising: a. A plurality of telemetry or telematics units securely attached to offshore wind cables; b. Multiple sensor modules (34) integrated within each telemetry or telematics unit (22) for monitoring cable parameters, including temperature, strain, partial discharge, acoustic emissions, environmental conditions, six-axis vibration and orientation, and insulation resistance; c. Onboard microcontrollers within each telemetry unit for processing sensor data and encrypting it before transmission; d. Secure communication protocols for encrypted data transmission to a centralized monitoring system; e. Tamper-evident seals, internal tamper detection sensors, and secure enclosures (32) within each telemetry unit to prevent unauthorized access or tampering.

2. The tamper-proof black box telemetry system of claim 1, wherein the sensor modules include fibre optic sensors for distributed temperature sensing (DTS) and distributed strain sensing (DSS), electrical sensors for high-frequency impedance analysis of partial discharge events, acoustic sensors for passive acoustic monitoring (PAM) of underwater cable faults, and environmental sensors for monitoring water depth, temperature, and currents.

3. The tamper-proof black box telemetry system of claim 1, further comprising six-axis vibration and gyroscopic orientation monitoring using accelerometers integrated within each telemetry unit (22) to detect and analyse mechanical vibrations and dynamic loads acting on the cable structure, wherein the six-axis vibration monitoring system generates vibration profiles and trend analysis reports for predictive maintenance and anomaly detection.

4. The tamper-proof black box telemetry system of claim 1, additionally incorporating insulation resistance monitoring technology to assess the electrical insulation integrity of the cable and detect any degradation or moisture ingress, wherein the insulation resistance monitoring system includes adaptive threshold algorithms to dynamically adjust monitoring parameters based on environmental conditions, and includes temperature compensation algorithms to account for variations in cable temperature.

5. The telemetry unit of claim 1, further comprising a battery or solar backup system to ensure uninterrupted operation in the event of power outages or cable disconnections.

6. The telemetry unit of claim 1, wherein the tamper-proof enclosure (26) includes anticorrosion coatings and protective seals to withstand harsh marine environments.

7. The telemetry unit of claim 1, wherein the remote data transmission module utilizes encrypted communication protocols to secure data transmission and protect against unauthorized access.

8. The telemetry unit of claim 1, further comprising an onboard data logging feature to store monitoring data locally for offline analysis and historical record-keeping.

9. The telemetry unit of claim 1, wherein the remote data transmission module supports two-way communication for sending commands and receiving status updates from onshore control centres.

10. The telemetry unit of claim 1, wherein the attachment mechanism for securing the telemetry unit to offshore wind cables comprises a clamping system (12) with adjustable tension (26) or similar for flexible deployment and repositioning, wherein the attachment mechanism includes self-adjusting features (28) to accommodate varying cable diameters and surface conditions (30).

11. The telemetry unit of claim 1, further comprising a GPS module for location tracking and asset management of deployed units.

12. The telemetry unit of claim 1, wherein the tamper-proof enclosure includes embedded sensors (34) to detect physical tampering or unauthorized access attempts, and furthermore the tamper-proof enclosure includes environmental sensors for monitoring temperature, humidity, and pressure conditions around the cable.

13. The telemetry unit of claim 1, wherein the six-axis vibration monitoring system integrates machine learning algorithms for anomaly detection and predictive maintenance.

14. The telemetry unit of claim 1, wherein the remote data transmission module supports multi-level data encryption and secure communication protocols compliant with industry standards.

15. The telemetry unit of claim 1, further comprising an external emergency shutdown mechanism triggered by predefined alarm thresholds to prevent catastrophic cable failures, for example during spooling, over-boarding or making up connections offshore.

16. The telemetry unit of claim 1, wherein the insulation resistance monitoring system incorporates self-diagnostic capabilities to detect sensor malfunctions or calibration errors.

17. The telemetry unit of claim 1, further comprising a user interface accessible via mobile applications or web portals for remote monitoring, system maintenance, software and firmware updates, calibration and configuration.

18. The telemetry unit of claim 1, wherein the attachment mechanism includes redundant securing mechanisms to ensure stable deployment in turbulent marine environments and redundant telemetry units (22) to ensure continuous functionality in the event of failure, damage or depleted batteries.

19. The telemetry unit of claim 1, wherein the remote data transmission module supports mesh networking for resilient and scalable communication across multiple telemetry units.

20. The telemetry unit of claim 1, wherein the six-axis vibration monitoring system includes adaptive filtering techniques to differentiate between cable vibrations and environmental noise.

21. The telemetry unit of claim 1, integrated into a distributed buoyancy (12) or ballast unit attached to an offshore wind cable (14), wherein the telemetry unit (22) is securely mounted within the buoyancy or ballast unit (16) to monitor cable health and environmental conditions.

22. The telemetry unit of claim 1, mounted onto a hang-off structure securing an offshore wind cable to a subsea float!ng or fixed platform, or wind turbine tower, wherein thetelemetry unit is affixed to the hang-off structure to detect and analyse cable behaviour and integrity issues.

23. The telemetry unit of claim 1, incorporated into a bend restrictor or bend stiffener installed at cable joints or transition points, wherein the telemetry unit is embedded within, or fastened to, or integrated within the design of the bend restrictor or bend stiffener to monitor cable stresses and movement.

24. The telematics unit of claim 1, installed within a connector joint connecting offshore wind cables to subsea infrastructure or another submarine cable, wherein the telemetry unit is integrated into the connector joint to monitor cable performance and identify potential failure risks.

25. The telematics unit of claim 1, integrated into a data and communications platform or network by means of satellite, cellular networks, Bluetooth, internet, cloud network or other interconnectivities.

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