Inductive Transponder Position Detection for Mobile Crane Boom
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Solution Overview
Problem
Conventional mobile cranes and crawler-mounted cranes lack reliable systems for unambiguously detecting pre-defined states or positions, which are crucial for accurate load-bearing capacity calculations and safe operation, often requiring manual input and prone to errors.
Innovation Solution
Integration of inductively acting transponders and receiver units, forming RFID systems, to detect and transmit position and state data to the control device via a databus, ensuring precise and error-free detection of boom positions, stabilizer plate positions, and operator safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual input methods are used for entering boom position data, then the device complexity is reduced, but the reliability and measurement precision of position detection deteriorate
Solution Approach 1:
The patent replaces manual mechanical input methods with an inductive detection system using transponders and receiver units. This substitution eliminates manual data entry while providing automatic, reliable position detection, resolving the contradiction between reduced device complexity and improved detection reliability.
Solution Approach 2:
The detection system enables the crane to automatically detect and record its own position parameters through transponders attached to boom sections and receiver units in the control system. This self-service capability eliminates the need for manual operator input, improving both reliability and reducing operational complexity.
2Measurement precision
If inductive transponders and receiver units are integrated for automatic position detection, then the measurement precision and reliability improve, but the device complexity increases
Solution Approach 1:
The patent replaces complex manual measurement and input processes with an inductive detection system. The transponders and receiver units provide precise automatic position detection, eliminating the need for manual measurement tools and data entry procedures, thereby improving measurement precision without proportionally increasing system complexity.
3Loss of information
If transponders are attached to multiple boom sections for comprehensive position detection, then the measurement precision and completeness of data improve, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent divides the boom structure into segmented sections, each equipped with transponders. This segmentation allows for comprehensive position detection at multiple points along the boom, ensuring complete position data while maintaining manufacturing simplicity through modular attachment of transponders to each section.
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
Enables reliable and precise detection of crane configurations, enhancing operational safety by preventing errors in load calculations and ensuring the operator's safety by only allowing remote control operation within a safe zone.
Implementation Method 1
at least one transducer in the form of a inductively acting transponder, a receiver unit for the sensing of the position of the transducer
Data Source
AI summary
The present application relates to a mobile crane comprising a telescopic boom which has a hinged section and at least one telescopic section which can be telescoped out of it, or to a crawler-mounted crane. In accordance with one embodiment, as a position detection device, it has at least one transducer in the form of an inductively operating transponder, a receiver unit for the sensing of the position of the transducer, a control device for control in dependence on a signal of the receiver unit, as well as a signal transmission device in the form of a databus for the transmission of the signal data from the receiver unit to the control device.