Device Management System Using Common Certification for Identification
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Solution Overview
Problem
The existing technique for device identification and certification, which involves incorporating unique information into devices during manufacturing, leads to increased production time and costs due to the risk of incorrect information storage and reduced productivity.
Innovation Solution
A device management system that uses common certification information shared among devices, acquired and stored in a network adapter, to certify and generate identification information for devices without embedding it in the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If device certification information is incorporated into devices during manufacturing, then device identification and certification can be achieved, but production time increases and productivity decreases
Solution Approach 1:
The patent applies preliminary action by pre-storing common certification information in the devices during manufacturing, while deferring the generation and assignment of unique identification information to occur after manufacturing (at activation or registration time). This separates the certification capability (prepared in advance) from the unique identification (assigned later), eliminating the bottleneck of individualized information writing during production.
Solution Approach 2:
The patent extracts the unique identification information generation step from the manufacturing process. Instead of incorporating complete unique device information during manufacturing, only common certification information is pre-stored. The unique identification information is extracted and assigned separately after manufacturing, thereby removing the time-consuming step from the production line.
2Reliability
If device certification information is stored in ROMs during manufacturing, then device certification is enabled, but the risk of storing identical information in different devices increases
Solution Approach 1:
The patent applies local quality by differentiating between common certification information (shared across all devices of the same type) and unique identification information (specific to each device). The common information is pre-stored in ROM during manufacturing, while the unique information is assigned individually later. This ensures that the critical unique portion is never at risk of duplication, while the common portion can be efficiently replicated.
3Reliability
If unique device information is incorporated during manufacturing, then device identification is achieved, but production costs increase
Solution Approach 1:
The patent applies preliminary action by preparing only the essential common certification information during manufacturing, and deferring the more complex unique identification assignment to a later automated process. This reduces manufacturing complexity and cost while ensuring device identification capability is maintained through the two-stage information structure.
Data Source
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AI summary
A device management system (1) includes a common certification information acquirer, a certifier, an identification information generator, and a setter. The common certification information acquirer acquires common certification information from a device (10) including a storage for storing the common certification information. The common certification information stored in the storage is shared with another device. The certifier certifies the device (10) based on the common certification information. The identification information generator generates identification information for identification of the device (10) certified by the certifier. The setter sets the identification information to the device (10).