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Advanced Payload Integration for Monitoring Sand Banks and Obstacle Avoidance

This document outlines the objectives and technical specifications for an advanced payload system designed to monitor the volumetric evolution of sand banks and facilitate obstacle avoidance. Key components include choices and performance characteristics of sensors, including altimeters and acoustic transducers, and their integration into the payload structure. A detailed schedule for testing various fin configurations is provided, alongside risks associated with the implantation of sensors. The system will utilize multiple output configurations for electronic signal conditioning, ensuring effective data transmission.

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Advanced Payload Integration for Monitoring Sand Banks and Obstacle Avoidance

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  1. SUMARE PAYLOAD

  2. CONTENTS • Objectives. • Sensors choice. • Sensors performances. • Implant possibilities. • Sensors conditioning. • Schedule. • Sensors integration drawings. • Fins navigation trials. • Fresh water tank measurement sensors. 2

  3. OBJECTIVES The “Payload” will assume two main operational functions. • Monitoring of the volumetric evolution of sand banks. • Obstacles avoidance. 3

  4. SENSORS CHOICE Altimeter. Acoustic high frequency transducer ( Resolution) Obstacles avoidance. The inner Mauve transducer is not available (Software limits / Discrimination). The transducer is the same than for altimeter. 4

  5. SENSORS PERFORMANCES Measurement limit : 50 m Measurement mode : Free run Measurement speed : 10 Hz Power supply : 12 or 24 VDC Interface : RS 232 or RS 485 Frequency : 500 kHz Conical beam : 6° 5

  6. IMPLANT POSSIBILITIES 1 : Risk on Payload structure (depth) Obstacle avoidance sensor not possible. 2 : Risk on launching. 3 : chosen solution 6

  7. SENSORS CONDITIONING Conditioning electronic : two output Two output are available on MMNS 1 RS 232 1 RS 485 The two electronic signal conditioning units will be connected on these outputs 7

  8. SCHEDULE 8

  9. SENSORS INTEGRATION. 4 configurations will be tested at sea. • 1 :Fins 60 mm long in front of the payload. • 2 :Fins 60 mm long in back of the payload. • 3 :Fins 120 mm long in front of the payload. • 4 :Fins 120 mm long in back of the payload. 9

  10. 1 :Fins 60 mm long in front of the payload. 10

  11. 1 :Fins 60 mm long in back of the payload. 11

  12. 3 :Fins 120 mm long in front of the payload. 12

  13. 4 :Fins 120 mm long in back of the payload. 13

  14. fins with their moulds 14

  15. FRESH WATER TANK MEASUREMENT SENSORS 15

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