Adaptive Boundary Wire Transmitter for Stable Signal Across Wire Lengths
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Solution Overview
Problem
Existing robotic lawnmower systems require time-consuming calibration to adapt signal quality to varying lengths of boundary wires, limiting flexibility and efficiency.
Innovation Solution
An adaptive boundary wire transmitter using bridge coupled power amplifiers, a sensing element, feedback amplifier, compensation network, and error amplifier automatically adjusts output signals to match the properties of boundary and guide wires without calibration, ensuring high-quality signal recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If calibration is performed to adapt signal quality to boundary wire properties, then signal quality is improved, but installation time increases
Solution Approach 1:
The transmitter automatically detects boundary wire properties (length, impedance) and adjusts its output signal parameters without requiring manual calibration. The system performs self-configuration by measuring the boundary wire characteristics during installation and adapting the drive signal accordingly, eliminating the need for time-consuming manual calibration procedures while ensuring optimal signal quality
Solution Approach 2:
The transmitter dynamically changes its output signal parameters (voltage, current, frequency) based on detected boundary wire properties. By measuring the boundary wire's electrical characteristics and automatically adjusting the signal parameters to match, the system maintains high signal quality across different installation scenarios without requiring manual intervention or calibration time
2Device complexity
If fixed factory settings are used for boundary wire length, then device complexity is reduced, but adaptability decreases
Solution Approach 1:
The transmitter transitions from static fixed settings to dynamic automatic adaptation. It continuously monitors boundary wire properties and adjusts its operating parameters in real-time based on the detected wire length and impedance, enabling the system to adapt to any boundary wire configuration without requiring complex manual setup or multiple fixed configuration 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
Enables efficient installation and operation of robotic lawnmowers by providing stable and recognizable signals across different wire lengths without the need for time-consuming calibration, enhancing system flexibility and efficiency.
Implementation Method 1
sense, by means of the sensing element, the boundary signal current
Implementation Method 2
amplify, by means of the two bridge coupled amplifiers, an output signal from the feedback amplifier
Data Source
AI summary
An adaptive boundary wire transmitter includes two bridge coupled power amplifiers, a sensing element, a feedback amplifier, a compensation network and an error amplifier. The adaptive boundary wire transmitter is connected to a boundary wire installation, including a boundary wire and feeds the boundary wire with a boundary signal current. By using a feedback amplifier to which the boundary signal current is fed together with the input signal together with compensation network and an error amplifier it is possible to generate a stable output signal from the adaptive boundary wire transmitter to the boundary wire that is independent of the boundary wire length.