Elevator Control Panel Renewal via Communication Conversion Unit
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Solution Overview
Problem
Existing elevator renewal methods do not effectively shorten the continuous out-of-service period during replacement, and the complex configuration and high cost of elevator controllers hinder efficient upgrades.
Innovation Solution
The method involves dividing the renewal process into manageable steps, replacing the old control panel with a new one equipped with a communication conversion unit that converts between old and new communication systems, allowing for higher data transmission capacity, and using a removable communication conversion unit to facilitate seamless communication between old and new systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the old control panel is replaced with a new control panel using a new communication system, then the communication speed and data transmission capacity are improved, but the elevator must be suspended for a long period during the renewal construction
Solution Approach 1:
The renewal construction work is divided into a series of divided construction work steps, where each step is a manageable unit that allows the elevator to be restored to normal operation after completion of that step. This segmentation enables phased replacement of control panels and communication systems without requiring complete system shutdown.
Solution Approach 2:
A communication conversion unit is introduced as an intermediary device that converts between the old serial communication system and the new communication system. This conversion unit enables compatibility between old and new systems, allowing the new control panel to communicate with existing elevator infrastructure using the older protocol while maintaining the benefits of the new high-speed communication system.
2Adaptability or versatility
If the elevator controller includes multiple CPUs and dual-port memory to support both old and new transmission systems, then the adaptability is improved, but the device complexity and cost increase
Solution Approach 1:
The communication conversion function is extracted from the main control panel and implemented as a separate, removable communication conversion unit. This extraction simplifies the main control panel configuration while maintaining the ability to support both old and new communication systems through the dedicated conversion unit.
Solution Approach 2:
The communication conversion unit is designed with multi-functionality to handle both old serial communication and new communication protocols. This single unit performs multiple functions (conversion, compatibility management, data transmission) that would otherwise require separate components, thereby reducing overall system complexity.
Data Source
AI summary
An elevator renewal construction method includes a series of divided construction work steps, each being determined as such a unit that the elevator operation becomes normally possible after finishing of each of the divided construction work steps, wherein one of the series of the divided construction work steps comprises the steps of: replacing an old control panel of the existing elevator with a new control panel; connecting an old cable for an old car device, which has connected the old car device and the old control panel of the existing elevator to each other, to a communication conversion unit provided in the new control panel; and converting a new serial communication system to an old serial communication system by the new control panel via the communication conversion unit and the old cable to control the old car device through the old serial communication system.