Elevator Control Device Non-Service Level Management
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Solution Overview
Problem
Conventional elevators face challenges in maintaining a non-service state on specific floors even when a card or similar means is used, leading to undesirable temporary invalidation of the non-service function, particularly during specific time zones like night.
Innovation Solution
An elevator control device with a non-service level setting part that sets two levels (level 1 and level 2) for each floor, allowing flexible determination of whether to temporarily invalidate or maintain the non-service function, using a temporary cancel signal to manage hall and car calls, and a non-passenger car waiting operation part to adjust elevator operations based on these levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If card collation is used to enable access to specific floors, then user convenience is improved, but the non-service function is always invalidated undesirably
Solution Approach 1:
The patent applies dynamics by making the non-service function state changeable based on time zones. The control device switches between maintaining non-service state and allowing temporary invalidation depending on whether it is daytime or nighttime, as detected by the time zone detection means. This dynamic adjustment resolves the contradiction by adapting the system behavior to different operational contexts.
Solution Approach 2:
The patent changes the parameter of time zone (daytime/n nighttime) to control the behavior of the non-service function. By detecting the current time zone and adjusting the non-service function accordingly, the system allows card collation to temporarily invalidate non-service during daytime while maintaining it during nighttime, thus resolving the contradiction between user convenience and security maintenance.
2Adaptability or versatility
If non-service function is invalidated temporarily through card collation, then floor accessibility is improved, but building security deteriorates during specific time zones
Solution Approach 1:
The patent implements periodic action by dividing the operation into different time zones (daytime and nighttime). During daytime, the system periodically allows temporary invalidation of non-service function through card collation. During nighttime, it maintains the non-service function. This periodic switching based on time zones resolves the contradiction by providing different accessibility levels at different times.
Solution Approach 2:
The patent uses time zone as a changing parameter to control the balance between accessibility and security. By detecting whether it is daytime or nighttime and adjusting the non-service function state accordingly, the system achieves flexible floor accessibility during daytime while maintaining building security during nighttime.
3Ease of operation
If non-service function is always invalidated after card collation, then ease of use is improved, but flexibility in maintaining security zones deteriorates
Solution Approach 1:
The patent applies dynamics by making the non-service function adaptable to different time zones rather than always invalidated. The control device dynamically adjusts whether to maintain or temporarily invalidate non-service based on time zone detection, providing both ease of use during daytime and security zone flexibility during nighttime.
Data Source
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AI summary
There is provided an elevator control device that can flexibly determine the permission of temporary invalidation of non-service function, and therefore can improve the security. For this purpose, the elevator control device having a non-service function of prohibiting the registration of call to each of floors includes a non-service level setting part which sets two non-service levels of level 1 and level 2 for each of the floors, a call registration part for a user to perform a call registration operation for a desired floor, and a call registration control part in which when the call registration part is operated, in the case where level 1 or level 2 has been set for the desired floor, prohibits a registration of call to that floor, and in the case where neither level 1 nor level 2 has been set for the desired floor, performs the registration of call to that floor. Even if level 1 has been set for the desired floor, in the case where a temporary cancel signal designating that floor has been inputted, the call to that floor is registered.