Data Recorder Radiation Protection via Non-Volatile Memory Power Cycling

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Solution Overview

Problem

Existing data recorders do not effectively mitigate the adverse effects of radiation on electronic devices, particularly in non-volatile memory modules.

Innovation Solution

A data recorder with a control unit that manages the power supply for non-volatile memory, switching it to an on state when data is recorded and switching it to an off state after data transfer is complete, thereby reducing radiation exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the power supply for non-volatile memory is kept in an on state continuously, then data can be stored and accessed at any time, but the electronic device is exposed to radiation continuously increasing adverse effects

Engineering Contradiction:

Improvedata storage reliabilityVSAvoidradiation adverse effects

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The power supply for non-volatile memory is switched between on and off states periodically based on data transfer requirements. The control unit monitors buffer memory status and switches the power supply state accordingly, creating periodic on/off cycles that reduce radiation exposure while maintaining data storage capability when needed.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

Data is pre-stored in the buffer memory before the power supply for non-volatile memory is switched to the on state. This preliminary action ensures that when power is restored to the non-volatile memory, data can be immediately transferred without requiring the power supply to remain on continuously, thus reducing radiation exposure while maintaining data availability.

Inventive Principle:

Principle #10Preliminary action

2Object-affected harmful factors

If the power supply for non-volatile memory is switched to off state to reduce radiation exposure, then adverse effects of radiation are reduced, but data transfer operations may be interrupted

Engineering Contradiction:

Improveradiation adverse effectsVSAvoiddata transfer efficiency

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The buffer memory acts as an intermediary between the input interface and the non-volatile memory. Data is first stored in the buffer memory when the power supply is in the on state, then transferred to the non-volatile memory when power is restored. This intermediary mechanism allows the power supply to be switched off during data transfer operations, reducing radiation exposure while maintaining data transfer efficiency through the buffer memory's temporary storage capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The power supply state is dynamically adjusted based on real-time monitoring of buffer memory status and data transfer requirements. The control unit switches the power supply between on and off states according to actual operational needs, creating a dynamic power management system that balances radiation protection with data transfer efficiency rather than using a static on/off state.

Inventive Principle:

Principle #15Dynamics

3Object-affected harmful factors

If the power supply for non-volatile memory is frequently switched between on and off states, then radiation exposure is reduced, but additional control complexity is introduced

Engineering Contradiction:

Improveradiation adverse effectsVSAvoidpower supply control complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The control unit automatically monitors the buffer memory status and decides when to switch the power supply between on and off states without requiring external intervention. The system self-regulates its power consumption and radiation exposure by detecting buffer memory conditions and autonomously controlling the power supply state, reducing the need for complex external control mechanisms while maintaining effective radiation protection.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12287701B2Data recorder and method for using data recorder

Publication Date: 2025.04.29 MITSUBISHI ELECTRIC CORP

AI summary

A data recorder capable of reducing adverse effects caused by radiation is provided. In one aspect of a data recorder of the present disclosure, an input interface includes a first buffer memory, the input interface accepts input of data from outside and records the data in the first buffer memory, a control unit switches a state of a power supply for non-volatile memory to an on state at a timing determined on the basis of an amount of data recorded in the first buffer memory and a mode of the input of the data from the outside via the input interface, the input interface transfers the data recorded in the first buffer memory to the non-volatile memory in a case where the power supply for non-volatile memory is in an on state.