Elevator Destination Dispatch with User Preference Profiles

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Solution Overview

Problem

Current destination dispatch elevator systems do not adequately consider user preferences such as desired car occupancy, wait time, and travel time when assigning elevator cars, leading to assignments that may not align with user desires.

Innovation Solution

A system and method that identifies users, retrieves their profiles, analyzes destination requests, and determines preferred car assignments based on user preferences, allowing users to opt-out or choose alternative assignments, incorporating user preferences like wait time, travel time, and car occupancy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If destination dispatch systems use predetermined parameters for car assignment, then system efficiency is improved, but user preference alignment deteriorates

Engineering Contradiction:
Improveelevator system efficiencyVSAvoiduser preference alignment
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adjusts car assignment criteria by integrating real-time user preferences into the dispatch algorithm. The controller modifies assignment parameters based on individual user profiles containing occupancy preferences, wait time sensitivity, and travel time requirements, transforming the static predetermined parameter system into a dynamic adaptive system that balances overall efficiency with individual user needs

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the parameters used for car assignment by incorporating multiple user-specific parameters (occupancy preference, wait time weight, travel time weight) into the dispatch calculation. The controller evaluates multiple assignments based on these varied parameters and selects the optimal one, allowing the system to adapt assignment criteria to match user preferences while maintaining efficiency

Inventive Principle:
Principle #35Parameter changes

2Loss of time

If the system provides optimal car assignment based on predetermined parameters, then wait time is reduced, but user satisfaction deteriorates due to mismatched preferences

Engineering Contradiction:
Improveuser wait timeVSAvoiduser satisfaction
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The system implements feedback by continuously monitoring user responses to assignments (acceptance or opt-out decisions) and using this information to refine future assignments. When users opt out of preferred assignments, the system learns from this feedback and adjusts subsequent assignments to better align with their actual preferences, improving both wait time management and user satisfaction through iterative optimization

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary actions by pre-calculating multiple potential assignments and presenting them to users before final assignment. This allows users to review options and provide input before being assigned, ensuring that the final assignment both minimizes wait time and aligns with user preferences through informed selection

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10597255B2Elevator route selection system
Publication Date: 2020.03.24 OTIS ELEVATOR CO
  • US10597255B2 patent drawing
  • US10597255B2 patent drawing

AI summary

A method and system for providing destination dispatch in an elevator control system, includes identifying a user, retrieving a user profile associated with the user, receiving a destination request associated with the user, analyzing the user profile and the destination request, determining a plurality of assignments, identifying a preferred assignment of the plurality of assignments, and prompting the user to opt-out of the preferred assignment.