Tower Crane Handheld Control With Area-Based Authorization
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Solution Overview
Problem
Existing remote operation methods for tower cranes require high operator skills and specialized environments, failing to meet user requirements for efficient and flexible control.
Innovation Solution
A handheld terminal system that establishes a binding relationship with a tower crane controller, allowing control in different areas by sending hoisting requirements and transferring control rights, with authentication and channel-specific communication to ensure secure and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If remote operation is implemented using remote cab or handheld console, then operator safety is improved, but operation complexity increases and requires specialized skills
Solution Approach 1:
The system enables self-service operation where the handheld terminal automatically establishes binding relationships with tower cranes in different areas, performs authentication, and transfers control rights without requiring specialized operator skills. The tower crane controller autonomously handles control right transfer and area-based authentication, making the remote operation system easy to use while maintaining safety.
2Adaptability or versatility
If handheld console is used for remote operation, then flexibility is improved, but operator skill requirements increase
Solution Approach 1:
The system replaces complex mechanical operation knowledge requirements with automated electronic authentication and control right transfer mechanisms. The handheld terminal uses area-based authentication and automatic binding relationships to grant control rights, eliminating the need for operators to have extensive mechanical knowledge of ground environments or tower crane operations.
3Measurement precision
If area-based control right transfer is implemented, then control precision is improved, but system complexity increases
Solution Approach 1:
The control area is segmented into multiple predefined areas around the tower crane, with each area having its own authentication requirements and control rights. The system divides the operational space into distinct zones (first area, second area, etc.), allowing precise control authorization based on location while using simple area identifiers to manage complexity.
Solution Approach 2:
The system performs preliminary authentication and control right transfer actions before actual operation begins. The handheld terminal pre-establishes binding relationships with tower cranes for different areas, and the controller pre-authenticates the operator's location and transfers control rights in advance, ensuring precise control authorization without requiring complex real-time decisions.
Data Source
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AI summary
A tower crane control system includes a handheld terminal (11) and a tower crane controller (12); the handheld terminal (11) is configured to send hoisting requirements to the crane controller (12) with which a binding relationship has been established in advance, wherein the hoisting requirements include a hoisting target point; the tower crane controller (12) is configured to control hoisting process of an associated target tower crane in a first area according to the hoisting requirements, wherein the hoisting target point is a boundary point of the first area; and the handheld terminal (11) is further configured to control the hoisting process of the target tower crane in a second area when it is determined that the target tower crane has moved to the second area, wherein the hoisting target point is a boundary point of the second area.