Elevator Security System Using Passenger Movement Detection

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Solution Overview

Problem

Conventional elevator systems lack efficient mechanisms to automatically detect and respond to emergency or unauthorized events within the elevator car, requiring manual monitoring by security personnel, which is time-consuming and inefficient.

Innovation Solution

An elevator security and control system that utilizes passenger position sensors and an electronic control module to monitor occupancy and landing areas, detect passenger movements, and control elevator operations based on position and movement, including determining security breaches and overriding elevator operations to ensure passenger safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual monitoring by security personnel is used to detect emergency events, then security coverage can be provided, but response time is delayed and efficiency is reduced

Engineering Contradiction:

Improvesecurity detection capabilityVSAvoidresponse time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The elevator system performs self-monitoring through integrated sensors that automatically detect occupancy, movement, and emergency conditions within the elevator car, eliminating the need for external manual monitoring and enabling immediate automated response to detected anomalies

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual visual monitoring by security personnel is replaced with automated electronic sensing systems including occupancy sensors, motion detectors, and control modules that continuously monitor the elevator environment and automatically trigger emergency protocols when threats are detected

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If manual intervention is required to locate and disable the elevator car during emergencies, then security personnel can control the situation, but the process becomes time-consuming and complex

Engineering Contradiction:

Improvesecurity personnel control capabilityVSAvoidtime to resolve emergency

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system pre-programs emergency response protocols that automatically execute when sensors detect emergency conditions, including automatic localization of the elevator car, automated disabling of elevator operations, and pre-coordinated alerting of security personnel, eliminating the need for manual decision-making during critical moments

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The control module continuously receives feedback from sensors monitoring elevator occupancy and movement, automatically adjusts elevator operations based on detected conditions, and provides real-time status information to security personnel, creating a closed-loop system that responds dynamically to emergency situations

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10696517B2Elevator security and control system based on passenger movement

Publication Date: 2020.06.30 OTIS ELEVATOR CO

AI summary

An elevator security and control system for monitoring at least one of an elevator occupancy area and a landing area includes an elevator car and a passenger position sensor. The passenger position sensor monitors at least one of the occupancy area inside the elevator car and the landing area proximate to a passenger waiting area, and detects movement of at least one passenger located at one of the occupancy area and the landing area. The elevator security and control system further includes an electronic control module that detects at least one body part of the at least one passenger and controls operation of the elevator car based on at least one of a position and a movement of the at least one body part.