Elevator Optical Authentication for Safe Maintenance Access
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Solution Overview
Problem
Existing elevator maintenance processes are hazardous due to the need for manual control from the roof or pit, lack of clear safety protocols, and potential unawareness of complex safety measures by service personnel, leading to unsafe entry and exit from elevator shafts and risky transitions between maintenance and normal operation.
Innovation Solution
A method using a mobile terminal for communicating with an elevator system through optical transmission of coded light signals, enabling secure authentication, location tracking, and error detection, allowing safe maintenance operations without requiring access to the elevator car roof or pit, and ensuring safe transitions between modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If service personnel manually control the elevator car from the roof or pit, then maintenance work can be performed, but safety risks increase due to potential accidents during entry and exit
Solution Approach 1:
The patent replaces the mechanical control system with an optical communication system. The mobile terminal communicates with the elevator control unit via optical signals (light transmission), eliminating the need for service personnel to physically access the roof or pit for manual control operations.
Solution Approach 2:
The patent introduces a mobile terminal as an intermediary device between the service personnel and the elevator system. This intermediary enables remote communication and control, allowing maintenance operations to be performed without direct physical access to hazardous areas.
2Reliability
If complex safety protocols and check-in processes are implemented, then occupational safety is improved, but the complexity of the maintenance process increases
Solution Approach 1:
The system automatically manages safety protocols and authentication processes. The mobile terminal and elevator control unit handle check-in, location tracking, and safety verification automatically without requiring service personnel to manually follow complex procedures.
Solution Approach 2:
The mobile terminal serves multiple functions: communication, authentication, location tracking, and safety monitoring. This multi-functional approach consolidates various safety protocols into a single integrated system, reducing overall process complexity.
3Productivity
If service personnel are required to access the elevator shaft for maintenance, then maintenance tasks can be completed, but the risk of accidents during shaft entry and exit increases
Solution Approach 1:
The patent replaces physical access to the elevator shaft with optical communication technology. The mobile terminal establishes an optical link with the elevator control unit, enabling maintenance operations to be performed remotely without personnel entering the shaft.
Solution Approach 2:
The patent extracts the control function from the physical elevator shaft environment and relocates it to a remote mobile terminal. This separation allows maintenance personnel to operate from safe locations while the elevator system remains controllable.
4Adaptability or versatility
If the elevator system transitions between maintenance and normal operation modes, then operational flexibility is improved, but safety risks increase due to potential car movement while personnel are present
Solution Approach 1:
The system continuously monitors the location of service personnel via the mobile terminal and uses this feedback to control mode transitions. The elevator control unit receives real-time location information and automatically prevents mode changes that would create safety hazards.
Solution Approach 2:
The system performs preliminary safety checks and location verification before allowing mode transitions. The mobile terminal and control unit exchange authentication signals and verify personnel location in advance, ensuring safe conditions before switching between operational modes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures safe and reliable maintenance by allowing secure communication and location tracking, reducing the risk of accidents during maintenance and safe mode transitions, independent of elevator equipment complexity.
Implementation Method 1
generating a coded light signal in response to this request using a control panel located outside the elevator shaft
Implementation Method 2
detecting the coded light signal using the mobile terminal
Data Source
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AI summary
The present invention relates to a method for communicating with an elevator system (1) by means of a mobile terminal (5), and to such an elevator system (1) or to such a mobile terminal (5). The method can comprise the following steps: - sending a request from the mobile terminal (5) to the elevator system (1) or from an elevator controller (8); - generating a coded light signal by means of an operator control panel (2), which is arranged outside an elevator shaft (3), in response to this request; - detecting the coded light signal by means of the mobile terminal (5); - sending a confirmation of the detection of the coded light signal to the elevator system (1); and - authorizing the mobile terminal (5) to communicate with the elevator system (1).