Elevator Control System for Machine Passenger Load Management
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Solution Overview
Problem
The challenge is to maintain or improve the elevator-riding experience for human passengers while accommodating machine passengers, ensuring safety and comfort by managing elevator loads and congestion effectively.
Innovation Solution
An elevator control system that includes a data collection unit to receive call requests from machine passengers and a control unit to determine acceptance based on elevator operating conditions and machine passenger information, providing rules for riding the elevator, such as parking and locking positions, and priority instructions to ensure safe and efficient use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the elevator accepts machine passengers to ride together with human passengers, then the utilization rate of the elevator is improved, but the riding comfort and safety of human passengers may deteriorate due to potential overload and congestion
Solution Approach 1:
The system dynamically changes the evaluation parameters for accepting machine passengers based on real-time elevator state. When the elevator is lightly loaded, machine passengers are welcomed to improve utilization. When approaching capacity thresholds or when human passengers prioritize comfort, machine passenger acceptance is restricted or rejected, thus maintaining safety and comfort while optimizing utilization rate.
Solution Approach 2:
The control system continuously monitors elevator load, volume, and passenger composition, and uses this feedback to dynamically adjust the acceptance policy for machine passengers. The system evaluates whether to accept machine passengers based on current conditions and sends rules to machine passengers, creating a closed-loop control that balances utilization rate with riding safety and comfort.
2Reliability
If the elevator prioritizes human passengers by restricting machine passenger access, then the riding comfort of human passengers is improved, but the productivity and utilization rate of the elevator deteriorates
Solution Approach 1:
The system implements dynamic priority adjustment rather than static restriction. The priority given to human passengers varies based on real-time conditions such as load factor, volume occupancy, and passenger distribution. When the elevator is not crowded, machine passengers are accepted to improve utilization. When comfort thresholds are approached, the system dynamically restricts machine passenger access, thus maintaining human passenger comfort while maximizing elevator productivity under varying conditions.
3Productivity
If the elevator accepts machine passengers without restrictions, then the productivity is improved, but the congestion and overload risk increases affecting human passenger experience
Solution Approach 1:
The system performs preliminary evaluation and assessment before accepting machine passengers. The control unit evaluates elevator operating conditions, current load, volume, and passenger composition in advance, and only accepts machine passengers when it determines that capacity thresholds will not be exceeded. This preliminary action prevents congestion and overload before they occur, maintaining both high throughput and safe operating conditions.
Solution Approach 2:
The system takes preliminary anti-action by restricting machine passenger acceptance before congestion or overload can develop. When the evaluation indicates that accepting another machine passenger would approach harmful thresholds, the system proactively rejects the request, preventing the harmful effect of congestion or overload before it impacts human passenger experience.
Data Source
AI summary
An elevator control system, an elevator system, and a control method therefor. The elevator control system includes: a data collection unit configured to receive a call request signal from a machine passenger at each landing, and receive information about the machine to ride the elevator sent by the machine passenger; and a control unit configured to determine whether to accept the call request from the machine passenger based on elevator operating condition and the information about the machine to ride the elevator, and send information about the rules of riding the elevator to the machine passenger after accepting its call request.