Elevator Call Request Filtering via Frequency Thresholding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing elevator systems face efficiency issues due to abnormal elevator call request operations, such as repeated requests within a short time period, which can lead to failures like the car door not closing normally, especially when passengers input calls maliciously or unintentionally.
Innovation Solution
An automatic elevator call system with a wireless signal apparatus and a personal mobile terminal that counts the number of elevator call requests within a predetermined time period and judges whether they exceed a threshold, stopping or canceling abnormal requests to prevent system inefficiencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elevator system accepts all call requests automatically, then the ease of operation is improved, but the reliability deteriorates due to abnormal repeated requests affecting system efficiency
Solution Approach 1:
The system implements a feedback mechanism by counting the number of call requests from the same terminal within a predetermined time period. When the count exceeds a threshold, the system provides feedback by blocking further call requests from that terminal, thus preventing abnormal repeated requests while maintaining automatic operation for normal users
Solution Approach 2:
The system changes the parameter of call request acceptance dynamically by introducing a time-based counting mechanism and threshold parameter. Normal requests are accepted automatically, but when the request frequency parameter exceeds the threshold within the time period, the system changes the acceptance parameter to block requests, thereby resolving the contradiction between ease of operation and reliability
2Productivity
If the system blocks repeated call requests, then the productivity is improved by preventing malicious inputs, but the ease of operation worsens due to additional judgment mechanisms
Solution Approach 1:
The system implements self-service by having the personal terminal perform the counting and judgment of its own call requests. The terminal autonomously determines whether to send call requests based on the count threshold, eliminating the need for complex server-side judgment mechanisms and maintaining ease of operation while improving productivity
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to the determination of an abnormal elevator call request in an automatic elevator call request system, and belongs to the field of intelligent elevator control technologies. The automatic elevator call system includes: a wireless signal apparatus installed in an elevator landing zone of an elevator system and broadcasting a corresponding wireless signal around; a counting unit configured to count, after an elevator call request corresponding to an identity of the personal mobile terminal is sent or received, the number of times the elevator call request corresponding to the identity is made within a predetermined time period; and an abnormal elevator call request judgment unit configured to judge, based on a comparison result between the number of times the elevator call request is made and a predetermined threshold, whether the elevator call request corresponding to the identity is a normal elevator call request operation. The present invention can effectively determine an intentional or unintentional abnormal elevator call request operation of a passenger.