Detector Base Short-Circuit Switching for Mixed Detector Lines

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Solution Overview

Problem

Existing detector bases require manual operation for setting up and interrupting short-circuit means between terminals, leading to potential errors and inefficiencies during conduction tests, especially when managing different types of detectors connected to a single line.

Innovation Solution

A detector base with a short-circuiting piece that is movable between connection terminals, featuring protruding portions of different heights and a guide structure, allowing for automatic switching between conductive and non-conductive states based on detector type, reducing the need for manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual operation is used for setting up and interrupting short-circuit means between terminals, then the conduction test can be performed, but potential errors and inefficiencies occur during the process

Engineering Contradiction:
Improveaccuracy of conduction testVSAvoidoperational complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The detector base automatically performs the function of setting up and interrupting the short-circuit means between terminals based on the detector type detected. The base itself serves the function that previously required manual operator intervention, thereby eliminating potential human errors and improving reliability while simplifying operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical operation of switching short-circuit means is replaced by an automated control system within the detector base. The base uses its detection capabilities to automatically control the short-circuit switching, replacing the need for manual mechanical switching operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the short-circuit means is set by operator judgment, then the conduction test can be adapted to different scenarios, but setting errors may occur

Engineering Contradiction:
Improveadaptability to different detector typesVSAvoidaccuracy of short-circuit setting
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The detector base detects the type of detector connected and uses this feedback information to automatically determine the appropriate short-circuit setting. The system continuously monitors the detector type and adjusts the short-circuit means accordingly, ensuring accurate adaptation to different scenarios without relying on operator judgment.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The detector base automatically adapts to different detector types by detecting the connected detector type and self-adjusting the short-circuit means. This eliminates the need for operator judgment while maintaining adaptability to various detector types, thereby improving both versatility and reliability.

Inventive Principle:
Principle #25Self-service

3Productivity

If manual setup of short-circuit means is required, then the system can handle different detector types, but the process becomes time-consuming and error-prone

Engineering Contradiction:
Improveefficiency of conduction testVSAvoidcomplexity of short-circuit control
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The detector base automatically manages the short-circuit means based on the detected detector type, eliminating the need for manual setup. This self-service capability significantly improves the efficiency of the conduction test process while the internal automation handles the complexity, making the overall system easier to use despite the sophisticated control logic.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4191553B1Sensor base and sensing device
Publication Date: 2025.10.22 NITTAN CO LTD
  • EP4191553B1 patent drawingFigure 1~2
  • EP4191553B1 patent drawingFigure 3~4
  • EP4191553B1 patent drawingFigure 5A~5B

AI summary

A detector base comprising a bottom plate that forms a circular shape, an outer peripheral wall that is provided surrounding the bottom plate, and a plurality of connection terminals that are arranged on the bottom plate at prescribed intervals in the circumferential direction, the detector base being configured so as to enable attachment of a detector provided with a plurality of external terminals that are capable of contacting each of the plurality of connection terminals, wherein: the detector base comprises, between any two connection terminals among the plurality of connection terminals, short-circuit members that have contact parts capable of contacting the respective contact terminals at both ends and that are arranged so as to be capable of moving in a reciprocating manner; two protruding parts having different heights are provided to the short-circuit members; and the short-circuit members are configured such that the contact parts at both ends are contacted by two corresponding contact terminals when the short circuit members are moved to one side of a movement range thereof, and such that at least one of the contact parts at the two ends is separated from the connection terminals when the short-circuit members are moved to the other side of the movement range.