Elevator Alarm Response Controller with Video Communication
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Solution Overview
Problem
Elevator systems face issues with passengers inadvertently triggering alarm signals, leading to false alarms, which can cause unnecessary panic and resource allocation, while true alarms may not be addressed promptly due to the lack of effective communication methods to differentiate between false and true alarm conditions.
Innovation Solution
An elevator system with an alarm response controller that analyzes operation parameters to determine the validity of alarm signals, using a video system to inform passengers how to resolve false alarms and initiating a video session with a dispatch center for true alarms, enabling communication and assistance from technicians or dispatchers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an alarm signal is triggered by a passenger, then the passenger can signal a malfunction or emergency condition, but the alarm may be false or inadvertent causing unnecessary panic and resource allocation
Solution Approach 1:
The system establishes a two-way communication channel between the trapped passenger and the dispatch center. The passenger can initiate an alarm and then receive feedback through video communication to confirm whether the alarm was genuine or false, and to receive instructions on how to resolve the situation. This feedback loop eliminates the need for complex false alarm detection systems while improving reliability.
Solution Approach 2:
The dispatch center acts as an intermediary between the passenger and the alarm response system. Instead of directly analyzing complex operation parameters to determine alarm validity, the system uses the human dispatcher as an intelligent mediator who can assess the situation through video communication and provide appropriate responses, simplifying the overall system architecture.
2Measurement precision
If operation parameters are analyzed to determine alarm validity, then false alarms can be differentiated from true alarms, but the system complexity and processing requirements increase
Solution Approach 1:
The system allows the passenger to self-verify their alarm condition through video communication with the dispatch center. The passenger can show the dispatcher what they are experiencing, and the dispatcher can visually assess whether the alarm condition is genuine. This self-service approach eliminates the need for complex automated parameter analysis systems while maintaining high detection accuracy.
Solution Approach 2:
Instead of having the system automatically analyze operation parameters to determine alarm validity, the invention inverts the approach by having the passenger visually demonstrate the alarm condition to a human dispatcher through video communication. This inversion simplifies the technical system while improving measurement precision through human judgment.
3Ease of operation
If a video system is used to communicate with the passenger, then communication and instructions can be provided, but the system cost and complexity increase
Solution Approach 1:
The video system serves multiple functions: it provides communication between passenger and dispatcher, allows visual assessment of alarm conditions, enables instruction delivery to passengers, and creates a record of the incident. By consolidating these multiple functions into a single video communication system, the overall system complexity is reduced compared to having separate systems for each function.
Solution Approach 2:
The invention merges the alarm response system with the video communication system into a single integrated platform. The video system is not an add-on but is fundamentally integrated with the alarm response functionality, allowing the same infrastructure to handle both communication and alarm assessment, thereby reducing overall system complexity.
Data Source
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AI summary
According to an embodiment, a method to communicate with a passenger in a car within a transportation system includes receiving an alarm signal from the car, receiving at least one operation parameter from the car, analyzing the at least one operation parameter corresponding to the alarm signal from the car, determining an alarm condition in response to the at least one operation parameter and the alarm signal, and initiating a video session via a video system in response to the alarm signal.