Controller Mode Switching for Individual Device Testing
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Solution Overview
Problem
Existing testing methods for electronic devices often fail to identify defects due to inadequate simulation of the operational environment, leading to devices with issues being shipped to customers, resulting in operational failures and increased warranty costs.
Innovation Solution
A testing arrangement that allows electronic devices to be tested in a simulated operational environment using a controller that can switch between modes, enabling individual testing of devices within a group by treating them as either a logical unit or individual units, with controlled environmental conditions such as temperature and humidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electronic devices are tested in a standard test environment using a controller that manages devices as a logical unit, then testing efficiency is improved, but measurement precision deteriorates because defects are missed
Solution Approach 1:
The controller dynamically switches between two operational modes: a first mode for managing electronic devices as a logical unit during normal operations, and a second mode for individually accessing and testing each device. This dynamic mode switching enables the system to adapt its behavior based on whether efficiency or precision is the priority, resolving the contradiction between testing efficiency and defect detection accuracy.
2Measurement precision
If electronic devices are tested individually in a simulated operational environment, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The controller is designed with multi-functionality, serving dual purposes: managing electronic devices as a logical unit during normal operations and individually accessing devices for testing. This universal design eliminates the need for separate testing equipment, reducing overall system complexity while enabling precise individual device testing in simulated operational environments.
Solution Approach 2:
The controller acts as an intermediary between the test tool and the electronic devices, providing individual access to devices during testing while maintaining its role as a manager during normal operations. This intermediary function enables precise defect detection without requiring direct complex interactions between test tools and each device, simplifying the overall testing system architecture.
3Reliability
If electronic devices are tested in an operational environment simulation, then reliability is improved, but loss of time increases due to comprehensive testing requirements
Solution Approach 1:
The system performs comprehensive individual device testing in a simulated operational environment before devices are deployed to customers. This preliminary action ensures that all potential defects are identified and resolved in advance, improving operational reliability while preventing future warranty issues, despite the extended testing duration required.
Data Source
AI summary
A controller is switched from a first mode to a second mode, where the controller in the first mode is to manage a plurality of electronic devices collectively as a logical unit. The controller in the second mode is used to individually test the plurality of electronic devices, where the controller in the second mode allowing sending of a test command individually to a respective one of the plurality of electronic devices.