Sensor Data Writing for Tamper-Resistant External Storage
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Solution Overview
Problem
Existing systems face the risk of data tampering during the storage process of measurement data from sensor nodes, as the data is relayed by a gateway and analyzed in the cloud.
Innovation Solution
An information processing device with a processor, sensing unit, acquisition unit, calculation unit, and writing unit that calculates situation values and issues write requests directly to an external storage system, utilizing cryptographic techniques like digital signatures and hash values to secure data integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If measurement data is relayed through a gateway and analyzed in the cloud, then data processing capability is improved, but data tampering risk increases
Solution Approach 1:
The patent extracts the critical function of data writing directly to the storage system from the gateway, eliminating the intermediate relay point. The sensor node writes measurement data directly to the storage system via the communication unit, removing the gateway's role in data transmission and thus eliminating the tampering risk while maintaining cloud processing capabilities for analysis.
Solution Approach 2:
The patent introduces a storage system as a direct intermediary between the sensor node and the cloud processing system. Instead of routing data through a gateway for storage, the storage system receives data directly from the sensor node and provides tamper-resistant storage, while the cloud system can still access and analyze this data through the storage system.
2Quantity of substance
If measurement data is stored in the cloud through gateway relay, then storage capacity is utilized, but processing time for data storage increases
Solution Approach 1:
The patent extracts the data writing function from the gateway's processing chain and implements it directly at the sensor node. The sensor node independently handles data writing to the storage system, eliminating the time-consuming gateway relay process and achieving direct storage while utilizing cloud storage capacity effectively.
Data Source
AI summary
The data measured by the sensor can be stored in a way that is difficult to tamper with. An information processing device, comprising: a processor having a memory; a sensing unit; an acquisition unit for acquiring, using the sensing unit, a measurement value corresponding to the situation in which the information processing device is located; a calculation unit for calculating a situation value indicating a state pertaining to the situation based on the measured value; and a writing unit for issuing a write request to an external storage system via a communication network to write the situation value.