Automatic Elevator Rescue via Server Analysis
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Solution Overview
Problem
Conventional elevator systems require manual intervention by a qualified mechanic to rescue passengers trapped due to malfunctions, leading to prolonged waiting times and increased costs.
Innovation Solution
An automatic rescue operation method and system that detects safety issues, analyzes data from the elevator system, and sends commands to resume normal operation or initiate a restricted rescue mode, allowing passengers to be freed quickly without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual rescue operation by mechanic is used, then safety is ensured through professional assessment, but rescue time is prolonged and passenger convenience deteriorates
Solution Approach 1:
The elevator system performs self-diagnosis and self-rescue operations through the automated rescue device. The control unit automatically analyzes safety signals, determines the rescue mode, and executes rescue operations without requiring a mechanic's physical presence, enabling the system to free trapped passengers autonomously while maintaining safety through programmed decision-making
Solution Approach 2:
The system pre-configures multiple rescue modes (first rescue mode for door obstruction, second rescue mode for other failures) and pre-programmes the decision-making logic in the control unit. When a safety issue is detected, the system immediately executes the appropriate pre-planned rescue sequence, eliminating the time required for a mechanic to assess and decide on the rescue approach
2Reliability
If manual rescue operation is used, then complex safety issues can be professionally assessed, but system complexity increases due to coordination requirements
Solution Approach 1:
The patent replaces the mechanical coordination system involving a mechanic's physical travel and manual operation with an electronic control system. The control unit receives safety signals, processes them through programmed logic, and automatically executes rescue operations, substituting human mechanical intervention with automated electronic decision-making and actuation
Solution Approach 2:
The invention extracts the decision-making and control functions from the mechanic and concentrates them in the elevator's own control unit. The control unit is equipped with the intelligence to analyze safety signals, determine the appropriate rescue mode, and execute the rescue sequence, thereby removing the need for external human coordination while maintaining professional-level assessment capabilities
3Productivity
If automated rescue operation is implemented, then rescue speed is improved and passenger convenience is enhanced, but system complexity and initial costs increase
Solution Approach 1:
The automated rescue device is designed as a multi-functional system that can handle multiple types of elevator failures through different rescue modes. The same control unit and actuation mechanisms are used for both first rescue mode (door obstruction) and second rescue mode (other failures), making the system universally applicable to various failure scenarios without requiring separate specialized equipment for each case
Solution Approach 2:
The system dynamically adapts its rescue approach based on the type of safety issue detected. The control unit evaluates the safety signal and automatically selects the appropriate rescue mode, adjusting the rescue sequence and actuation commands in real-time. This dynamic decision-making capability allows the system to optimize rescue speed for each specific failure type while using a single versatile hardware platform
Data Source
AI summary
An automatic elevator safety system includes an elevator safety circuit and an external server. The elevator safety circuit is configured for monitoring the operation of an elevator system comprising at least one elevator car traveling along a hoistway, and an elevator control configured for controlling the movement of the elevator car. At least one of the elevator control and the elevator safety circuit is configured for sending data comprising information about the current state of the elevator system to the external server, in particular in case a safety issue has been detected. The external server is configured for (A) receiving the data sent by the at least one elevator safety circuit; (B) analyzing the received data; and (C) depending on the result of the analysis, sending commands to the elevator system.