Floating Temperature Sensor with Multi-Hop Wireless Transmission
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Solution Overview
Problem
Existing systems for monitoring temperature profiles in ice, snow, and water lack floating capabilities, real-time data transmission, and the use of artificial computational intelligence, making them unreliable and difficult to recover in adverse conditions, especially in scenarios like Antarctic sea ice monitoring and avalanche risk assessment.
Innovation Solution
A device with multi-sensor capabilities, equipped with artificial computational intelligence algorithms, multi-hop wireless transmission, and a floating system for autonomous operation, enabling pervasive and high-frequency monitoring of temperature profiles, with data redundancy and recovery features, including satellite and battery/solar-powered data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed monitoring systems are used in harsh environments, then measurement stability is improved, but device recoverability deteriorates
Solution Approach 1:
The system transitions from a fixed installation to a dynamic floating platform that can adapt its position and operation mode based on environmental conditions. The floating nature allows the device to move with ice drift while maintaining measurement capability, and the recoverability is enhanced through satellite tracking and controlled retrieval mechanisms.
2Productivity
If real-time data transmission is implemented, then monitoring frequency is improved, but energy consumption increases
Solution Approach 1:
The system employs periodic transmission cycles where data is accumulated during measurement intervals and transmitted in scheduled batches rather than continuous real-time streaming. This reduces peak energy consumption while maintaining effective monitoring frequency through optimized transmission windows.
Solution Approach 2:
The system uses feedback mechanisms to adjust transmission frequency based on data significance, environmental conditions, and energy status. When measurements indicate stable conditions, transmission frequency is reduced to conserve energy, while critical events trigger immediate transmission regardless of energy consumption.
3Ease of operation
If floating capabilities are added to enable recovery, then device recoverability is improved, but device complexity increases
Solution Approach 1:
The floating platform serves multiple functions simultaneously: it provides buoyancy for deployment, enables drift with ice movements for continuous monitoring, facilitates recovery through controlled flotation, and acts as a stable mounting platform for sensors and communication equipment. This multi-functionality reduces the need for separate specialized components.
4Reliability
If satellite transmission backup is implemented, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The system employs an intermediary communication architecture where multiple transmission modes (direct satellite, relay through other nodes, stored-and-forward) are available as intermediaries for data transmission. The system automatically selects the most appropriate transmission path based on availability and conditions, providing redundancy without requiring all systems to be active simultaneously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures reliable, real-time monitoring and recovery of temperature profiles in harsh environments, minimizing data and system losses, and facilitating rescue operations through autonomous operation and multi-hop/satellite data transmission, even in adverse conditions.
Implementation Method 1
an external charging system, in particular a photovoltaic panel arranged to the battery recharge
Implementation Method 2
The device (1) is designed to be, together with other similar devices, part of an integrated system for the environmental data measurement... equipped with a floating system
Data Source
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AI summary
A device (1) aimed to the detection of temperature profiles comprises: at least a hermally isolated and watertight case (2), housing at least a processor board (CPU), wireless multihop communication subsystems, global position detection subsystems, at least one antenna, at least one external probe including one or more temperature sensors; at least one battery and related charging subsystems including a PV panel, a device buoyancy system devised to keep it in predefined floating position; and a low power sensor array capable to wake up the CPU board from a minimum power consumption state when a floating condition is detected, so that the device transmits all the data still to be transmitted and position data.