Mobile Robot Sensor Sharing for Obstacle Detection and Dock Return
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mobile robot systems require multiple detection sensors for obstacle detection and charge station guidance, leading to increased complexity and inefficiency in returning to a charge station, with varying time requirements and potential battery consumption issues.
Innovation Solution
A mobile robot system utilizing a single detection sensor capable of receiving both obstacle detection signals and charge station position guide signals of different frequencies, with a controller to separate and process these signals, allowing for efficient navigation and return to the charge station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate detection sensors are installed for obstacle detection and charge station position detection, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies multi-functionality by enabling a single detection sensor to perform both obstacle detection and charge station position detection. The sensor receives and distinguishes between different types of signals (obstacle detection signals and charge station position guide signals) through frequency band separation, eliminating the need for separate sensors while maintaining detection accuracy for both functions.
2Adaptability or versatility
If multiple detection sensors are installed for obstacle detection and charge station guidance, then signal reception capability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent applies multi-functionality by enabling a single detection sensor to perform both obstacle detection and charge station position detection. The sensor receives and distinguishes between different types of signals (obstacle detection signals and charge station position guide signals) through frequency band separation, eliminating the need for separate sensors while maintaining detection accuracy for both functions.
3Reliability
If the mobile robot moves randomly along the wall surface to return to the charge station, then obstacle avoidance is improved, but loss of time increases
Solution Approach 1:
The patent applies feedback by implementing a charge station position detection system that provides real-time positional information to the mobile robot. The detection sensor receives charge station position guide signals and the controller calculates the robot's position relative to the charge station, enabling the robot to navigate directly toward the charge station rather than moving randomly, thus significantly reducing return time while maintaining obstacle avoidance capability.
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
The system enables effective obstacle avoidance and efficient return to the charge station using a simplified structure, reducing the need for additional sensors and maintaining existing robot functionality.
Implementation Method 1
a signal reception unit including one or more detection sensors for both receiving obstacle detection signals of different frequency bands and the charge station position guide signals outputted from a charge station; and a controller for separating and detecting the obstacle detection signals and the charge station position guide signals, which are outputted from the signal reception unit, according to frequency bands
Data Source
AI summary
Disclosed are a mobile robot and a mobile robot charge station return system, the mobile robot having a simplified structure by commonly using a detection sensor capable of both receiving charge station guide signals and obstacle detection signals, the two types of signals having different frequencies. The mobile robot includes a signal reception unit including one or more detection sensors for both receiving obstacle detection signals of different frequency bands and the charge station position guide signals outputted from a charge station; and a controller for separating and detecting the obstacle detection signals and the charge station position guide signals, which are outputted from the signal reception unit, according to frequency bands, and controlling an operation of the mobile robot according to the detected signals.