Virtual Boundary Alignment Detection for Mobile Robot Area Control
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Solution Overview
Problem
Existing robotic systems lack efficient methods to confine and control mobile robotic devices within specific areas, often relying on physical barriers that encumber movement and decrease autonomy, and fail to prevent unwanted transitions between workspaces.
Innovation Solution
A system using transmitters and receivers to establish virtual boundaries, allowing robotic devices to detect alignment with a virtual line and alter their movement to avoid crossing predefined areas, thereby restricting or permitting movement within or out of a working area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical barriers are used to confine robotic devices, then the robotic device is prevented from entering prohibited areas, but the barriers encumber routine movement and decrease system autonomy
Solution Approach 1:
The patent replaces physical mechanical barriers with an optical/electromagnetic field-based virtual boundary system. Transmitters emit signals that create invisible boundary zones, and receivers detect when the robotic device approaches or crosses these boundaries. This substitution eliminates the need for physical barriers while maintaining boundary enforcement capability, thereby preserving system autonomy and enabling unrestricted movement within permitted areas.
Solution Approach 2:
The patent introduces signal fields as intermediaries between the boundary definition system and the robotic device. Instead of direct physical contact with barriers, the robotic device interacts with electromagnetic or optical signals that represent the boundary. This intermediary layer enables non-contact boundary detection and enforcement, allowing the device to operate autonomously without physical constraints.
2Reliability
If physical barriers are installed to prevent entry into prohibited areas, then unwanted transitions are blocked, but substantial extra equipment is required which is neither efficient nor practical
Solution Approach 1:
The patent replaces complex physical barrier structures with simple transmitter-receiver signal fields. Instead of installing walls, fences, or physical blocking devices, the system uses electromagnetic or optical signals to define and enforce boundaries. This dramatically reduces equipment complexity while maintaining effective area confinement capability.
Solution Approach 2:
The patent extracts the essential boundary-defining function from physical barrier structures and isolates it as a separate signal-based system. By taking out the boundary enforcement capability from mechanical barriers and implementing it through transmitters and receivers, the system eliminates the need for substantial extra equipment while preserving the core function of preventing unwanted area transitions.
3Adaptability or versatility
If the robotic device is permitted to travel into other areas, then task completion flexibility is improved, but the device may collide with undetected fragile objects or operate in unauthorized zones
Solution Approach 1:
The patent establishes virtual boundaries in advance before the robotic device operates in the environment. These pre-defined signal-based boundaries proactively guide the device's movement and prevent it from entering prohibited areas where fragile or undetected objects may be present. By having boundaries established beforehand, the system maintains task flexibility while preemptively avoiding potential collision hazards.
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 and autonomous movement of robotic devices by preventing unwanted transitions and allowing completion of tasks within designated areas before moving on, reducing human intervention and maintaining system autonomy.
Implementation Method 1
transmitting, with at least one first transmitter, a first signal; receiving, with a first receiver and a second receiver, the first signal
Data Source
AI summary
A method for detecting an alignment of a robot with a virtual line, including: transmitting a first signal with at least one first transmitter; receiving the first signal with a first receiver and a second receiver, wherein the first receiver and the second receiver are housed within a first passage and a second passage, respectively; detecting, with a controller coupled to the first receiver and the second receiver, the robot is aligned with the virtual line when the first receiver and the second receiver simultaneously receive the first signal, the virtual line being in line with and located at a midpoint between the first passage and the second passage; and actuating the robot to execute a particular movement type when the robot is aligned with the virtual line.