Elevator Renewal Through Phased Work and Communication Relays
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Solution Overview
Problem
Existing elevator renewal methods require a long continuous out-of-service period, which is a major obstacle to the renewal process.
Innovation Solution
A method involving divided construction work steps that allow the elevator to be brought into a normally operable state after each step, utilizing communication-enabled devices and relay devices to facilitate communication between old and new components, enabling phased renovation without full shutdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional elevator renewal construction method is used, then device renovation can be completed, but the elevator must be suspended for a long continuous period
Solution Approach 1:
The renewal construction work is divided into multiple discrete steps (first divided construction work step, second divided construction work step, etc.), where each step can be completed independently and the elevator can be restored to operational state between steps. This segmentation allows the elevator to be suspended for shorter, intermittent periods rather than one long continuous period.
Solution Approach 2:
Communication-enabled devices and relay devices are installed and configured in advance during the first divided construction work step, establishing communication pathways before the elevator is fully renovated. This preliminary setup enables the old control panel to communicate with new devices, allowing the elevator to operate with mixed old and new components during intermediate phases.
2Manufacturing precision
If the elevator is suspended continuously for renewal construction, then all devices can be renovated thoroughly, but operational availability is lost for the entire period
Solution Approach 1:
The renovation process is segmented into manageable steps where critical communication infrastructure is established first, allowing the elevator to maintain limited operational capability during subsequent renovation phases. This enables quality renovation work to be performed while preserving some level of productivity.
Solution Approach 2:
Communication relay devices serve as intermediaries between the old control panel and new communication-enabled devices, enabling signal transmission during the transition period. This intermediary mechanism allows the elevator to operate with a hybrid system (old control panel + new devices) during renovation, maintaining operational availability while completing thorough renovations.
Data Source
AI summary
In an elevator renewal construction method, a series of divided construction work steps includes a first divided construction work step including the steps of: installing a communication-enabled hall device at each hall; installing a communication-enabled car device in a car; and installing a communication relay device and connecting the communication relay device and an old control panel to each other; connecting the communication relay device and each of the communication-enabled hall devices to each other and connecting the communication relay device and the communication-enabled car device to each other. After termination of the first divided construction work step, the old control panel is in a state of being communicable with the communication-enabled hall devices and the communication-enabled car device via the communication relay device.