Mobile Device Elevator Control for Maintenance Safety
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Solution Overview
Problem
Elevator maintenance and inspection pose safety risks for service personnel due to hazardous access conditions and complex safety procedures, as existing systems lack precise control over elevator operation modes and positions, potentially leading to accidents.
Innovation Solution
A mobile device communicates with an elevator to automatically set it into a desired operation mode and position the car for safer access, while guiding users through safety activities and confirming their completion to ensure proper safety protocols are followed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If service personnel manually control the elevator to reach the desired floor for maintenance, then they can access the shaft, but the process is time-consuming and error-prone due to complex safety procedures
Solution Approach 1:
The mobile device automatically controls the elevator positioning and operation mode selection without requiring manual intervention from service personnel. The system self-determines the desired floor based on the selected maintenance task and automatically executes the elevator movement, eliminating the need for personnel to manually operate the elevator while maintaining safety protocols.
Solution Approach 2:
The system pre-configures safety procedures and automatically executes them before elevator positioning. The mobile device determines the desired operation mode and positions the elevator in advance based on the selected task, ensuring all safety checks are completed beforehand rather than during the positioning process.
2Reliability
If service personnel manually select operation modes and positions, then they have control over the elevator, but the complexity of safety procedures increases the risk of errors
Solution Approach 1:
The mobile device provides real-time feedback to service personnel by displaying the current elevator position, desired position, and completion status of safety procedures. The system continuously monitors whether safety activities have been completed and provides confirmation when requirements are met, ensuring reliable compliance without requiring personnel to manage the complexity themselves.
Solution Approach 2:
The mobile device acts as an intermediary between service personnel and the elevator control system. It translates simple task selections into complex safety procedure executions, handling the complexity of operation mode selection and safety checks automatically while presenting only simplified controls to the user.
3Ease of operation
If the elevator is positioned at a random floor, then the car can be located, but service personnel cannot safely or conveniently access the shaft
Solution Approach 1:
The system pre-determines the optimal floor position based on the selected maintenance task before elevator movement begins. The mobile device automatically calculates and executes the precise positioning required for safe and convenient access, ensuring the elevator stops at the correct floor rather than requiring manual adjustment afterward.
Data Source
AI summary
A mobile device, a control method, and an elevator controlled by the method or communicated with the mobile device are operated to facilitate maintenance or inspection work and enhance technician safety. The mobile device communicates with the elevator to select a task to be carried out for the elevator, determine the current position of the mobile device, and instruct a controller of the elevator for setting the elevator into a desired operation mode and for locating a car of the elevator in a desired car position in a shaft of the elevator, wherein the desired operation mode and the desired car position are defined by the mobile device according to the selected task and the current position of the mobile device.