Wireless Crane Operator Authentication System
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Solution Overview
Problem
Existing crane operator authentication systems using RFID technology are inadequate as they do not clearly define access rights, do not allow for easy retrofitting, and require the RFID card to be within a limited range of the reader, restricting operator flexibility and ergonomics.
Innovation Solution
A wireless communication-based system for authenticating crane operators, where an identifier reader connects to the crane's control system without wires, allowing for separate installation and enabling operator-specific rights management through a database, with validation periods and sensor-activated identification renewal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID card is used for operator authentication, then operator identification is enabled, but operator flexibility and ergonomics are restricted due to limited reading range
Solution Approach 1:
The patent replaces the mechanical/proximity-based RFID system with a wireless communication system. The controller and control unit communicate via wireless signals, eliminating the need for physical proximity or line-of-sight requirements. This allows the operator to authenticate and control the crane from a distance, improving both ergonomics and operational flexibility while maintaining secure authentication.
2Reliability
If RFID reader is integrated into control system, then authentication is reliable, but retrofitting existing cranes becomes complex
Solution Approach 1:
The patent divides the authentication system into separate modular components: an identifier reader that can be independently mounted on the controller, and a control unit that communicates wirelessly. This segmentation allows the authentication system to be added to existing cranes without redesigning the entire control system, simplifying retrofitting while maintaining reliable authentication through the wireless connection between components.
3Device complexity
If equal access rights are given to all RFID card holders, then system is simple, but individual operator rights cannot be managed
Solution Approach 1:
The patent implements local quality by assigning different access rights and authorization levels to different operators through the database. Each operator's identifier is associated with specific permissions, capabilities, and restrictions in the database. This allows the system to maintain simplicity in its core authentication mechanism while providing nuanced, individualized access control based on each operator's role, experience level, and training.
4Ease of manufacture
If identifier reader is mechanically mounted to controller, then installation is simple, but wiring to control system becomes complex
Solution Approach 1:
The patent replaces the electrical/wiring connection between the identifier reader and control system with a wireless communication link. The identifier reader is mechanically mounted to the controller for simple installation, but communicates authentication data wirelessly to the control unit. This eliminates the need for complex wiring while maintaining reliable data transmission, combining the benefits of simple mechanical installation with wireless communication freedom.
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
Facilitates easy retrofitting of existing cranes, provides flexible operator authentication with defined rights, and allows operators to maintain control without constant proximity to the reader, enhancing ergonomics and operational efficiency.
Implementation Method 1
an identifier reader (1-300) to be placed in connection with the controller (1-200) to read an operator's identifier by using a first wireless connection
Data Source
AI summary
A system is provided for identifying an operator and managing access rights in connection with a crane. The crane includes a control system and a controller positioned at a distance from it. The control system maintains a plurality of operator-specific parameters that define operator rights. An identifier reader is placed in connection with the controller for reading the operator's identifier by using a first connection. A second connection is set up between the identifier reader and the control system to send the operator's identifier, or information derived from it, to the control system. The control system compares the operations requested through the controller with the operator-specific parameters, which define operator rights, and allows the operation of the crane only within the scope of rights associated with the operator's identifier.