Elevator Control System Voice Recognition During Travel
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Solution Overview
Problem
The existing elevator control system does not allow voice recognition during car travel, resulting in reduced operation efficiency as users cannot register calls during this time.
Innovation Solution
An elevator control system with a voice input section, voice recognition section, destination floor determination section, stoppable floor determination section, and call registration section that enables call registration during car travel if the destination floor is determined to be stoppable, allowing for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If voice recognition is disabled during car travel to prevent erroneous recognition, then recognition accuracy is improved, but operation efficiency deteriorates because users cannot register calls during travel
Solution Approach 1:
The system dynamically adjusts the voice recognition function based on the car's operational state. During travel, the system enables call registration through voice recognition while maintaining accuracy through noise suppression techniques. When the car stops, normal voice recognition operations resume. This dynamic adaptation allows the system to optimize for both accuracy and efficiency in different operational contexts.
Solution Approach 2:
The system changes the operational parameters of the voice recognition section based on the car's state. When traveling, the system modifies recognition parameters to filter out noise from moving cars while still allowing call registration. This parameter adjustment enables the system to maintain high accuracy even during travel, resolving the contradiction between accuracy and efficiency.
2Productivity
If call registration is enabled during car travel, then operation efficiency is improved, but erroneous recognition due to moving car noise increases
Solution Approach 1:
The system converts the harmful noise from moving cars into a beneficial filtering opportunity. By detecting the presence of car noise during travel and applying noise suppression algorithms, the system actually improves its ability to distinguish valid voice commands from background noise. This transforms the previously harmful factor (moving car noise) into a benefit that enhances recognition reliability.
Solution Approach 2:
The system introduces an intermediary noise suppression section that acts as a mediator between the voice input and the recognition process. This intermediary component filters out moving car noise while preserving valid voice commands, enabling reliable call registration during travel without direct exposure to the harmful noise interference.
3Measurement precision
If voice recognition is completely disabled during travel, then recognition accuracy is maintained, but user convenience deteriorates as users must wait until the car stops to register calls
Solution Approach 1:
The system enables continuous call registration functionality throughout the car's operation. By maintaining voice recognition capability during travel through noise suppression, the system eliminates the need for users to wait until the car stops. This continuous operation provides both accuracy and convenience, allowing users to register calls at any time without sacrificing either parameter.
Data Source
AI summary
There is provided an elevator control system capable of improving operation efficiency of an elevator. The elevator control system includes a processor; and a memory to store a program which performs processes of recognizing a floor based on information from in a car of an elevator during travel of the car, determining a destination floor based on the floor recognized, determining whether or not the destination floor determined during the travel of the car, and registering a call corresponding to the destination floor in the car during the travel of the car in a case where the destination floor is determined to be the stoppable floor. The program performs processes of, in a case where the destination floor is not determined to be the stoppable floor, registering the call corresponding to the destination floor in the car after the car responds to all calls registered in the car.