Elevator Auxiliary Panel for Legacy Communication Conversion
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Solution Overview
Problem
The existing elevator renewal method using an elevator controller does not effectively shorten the continuous out-of-service period and results in a complex configuration and increased costs due to the need for a new transmission control CPU, old transmission control CPU, and dual-port memory for signal conversion.
Innovation Solution
The method involves replacing the old control panel with a new one and installing an auxiliary panel with a communication conversion unit to convert between old and new serial communication systems, allowing the old devices to communicate with the new control panel, thus simplifying the configuration and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the old control panel is replaced with a new control panel using a new serial communication system, then communication speed and performance are improved, but the continuous out-of-service period increases due to the complexity of converting old devices to the new system
Solution Approach 1:
The patent introduces a communication conversion unit as an intermediary device that converts signals between the new serial communication system and the old serial communication system. This mediator enables seamless communication between the new control panel and old devices without requiring the old devices to be upgraded, thus shortening the out-of-service period while achieving improved transmission speed.
Solution Approach 2:
The patent segments the communication conversion function into a separate, independent unit that can be easily installed and configured. This segmentation allows the conversion unit to be added without disrupting the entire control system, enabling faster renewal implementation and reducing the continuous out-of-service period.
2Adaptability or versatility
If the elevator controller includes multiple CPUs and dual-port memory for signal conversion, then compatibility between old and new systems is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses a communication conversion unit as an intermediary that handles all signal conversion operations externally. This approach maintains compatibility between old and new systems without requiring the control panel itself to contain multiple CPUs or dual-port memory, thereby reducing device complexity while preserving adaptability.
Solution Approach 2:
The patent extracts the complex signal conversion functionality from the main control panel and places it in a separate communication conversion unit. This extraction simplifies the main control panel configuration while maintaining full compatibility with both old and new communication systems.
3Adaptability or versatility
If multiple communication conversion components are integrated into the control panel, then signal conversion capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent implements signal conversion capability through a separate communication conversion unit rather than integrating multiple conversion components into the control panel. This intermediary approach reduces manufacturing complexity and cost while maintaining full signal conversion capability between old and new systems.
Solution Approach 2:
The patent segments the communication conversion functionality into an independent unit that can be manufactured separately and then integrated with the control panel. This segmentation reduces the manufacturing complexity of the main control panel while preserving full signal conversion capability, thereby lowering overall manufacturing costs.
Data Source
AI summary
An elevator renewal construction method includes steps of: replacing an old control panel of an existing elevator with a new control panel; installing an auxiliary panel, which includes a communication converter to be connected to the new control panel, and which is formed separately from the new control panel; and connecting an old device including at least any one of an old hall device and an old car device, which has been placed in a communicable state with the old control panel of the existing elevator, into a communicable state with the new control panel via the communication converter, wherein the new control panel is configured to be communicable with the old device through an old communication system converted via the communication converter included in the auxiliary panel, the communication converter being configured to mutually convert a communication system between a new communication system and the old communication system.