Radiation Detection Robot Boundary Protection Using Diagonal Laser Radars

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Solution Overview

Problem

Current radiation detection technologies face challenges in effectively isolating a protection zone for X-ray operations, relying on manual caution tapes or complex photoelectric beam setups, which can lead to accidental entry and interruptions during X-ray operations.

Innovation Solution

A boundary protection system using diagonally arranged laser radars and marking rods to define an interlocking zone, with an early warning zone, where the system detects and adjusts the zone's size and shape to meet radiation protection requirements and issues warnings for intrusions, ensuring safe operation and reducing accidental entries.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If caution tape is used for boundary isolation, then the system is simple to set up, but it relies on public consciousness and cannot effectively prevent accidental entry

Engineering Contradiction:
Improveboundary setting easeVSAvoidboundary protection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical caution tape system with an automated laser radar detection system that actively monitors the boundary zone and provides warnings, transforming passive mechanical isolation into active electronic detection and warning

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs self-monitoring and self-warning functions through automated laser radar detection, eliminating the need for manual boundary maintenance and public compliance monitoring

Inventive Principle:
Principle #25Self-service

2Reliability

If photoelectric beams are used for boundary isolation, then the boundary protection reliability is improved, but the operation becomes more complicated and alignment is difficult

Engineering Contradiction:
Improveboundary protection reliabilityVSAvoidboundary setting ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts the detection function from the complex two-beam photoelectric system and implements it using a single laser radar unit that performs both boundary definition and intrusion detection independently

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The laser radar system serves multiple functions: defining the boundary zone, detecting intrusions, calculating area and shape, and providing warnings, replacing the specialized photoelectric beam alignment system

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Area of stationary object

If the protection zone is enlarged, then the coverage area is improved, but the photoelectric beam alignment becomes more difficult

Engineering Contradiction:
Improveprotection zone areaVSAvoidbeam alignment complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical photoelectric beam alignment system with laser radar that uses electronic scanning and coordinate calculation, eliminating alignment complexity while enabling larger coverage areas through rotational scanning capability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If X-ray output is immediately cut off upon intrusion detection, then safety is improved, but the operation is easily interrupted by mistake

Engineering Contradiction:
Improvesafety reliabilityVSAvoidX-ray operation continuity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system provides preliminary warning before cutting off X-ray output, giving operators time to verify intrusions and avoid unnecessary interruptions, while still maintaining safety through the warning alert

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system provides feedback through warning signals that allow operators to assess the situation before taking action, enabling discrimination between legitimate intrusions and false alarms while maintaining safety protocols

Inventive Principle:
Principle #23Feedback

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 ensures personal safety by providing an early warning zone, reducing accidental entries, and improving operational efficiency by preventing interruptions during X-ray operations, while ensuring accurate positioning of objects within the interlocking zone for precise detection.

Implementation Method 1

a first laser radar and a second laser radar are arranged diagonally... the first laser radar and/or the second laser radar detect whether a range of the interlocking zone meets radiation protection requirements

Methodology Applied
Scientific EffectLIDAR: LIDAR

Data Source

PatentUS11938639B2Boundary protection method and system of radiation detection robot
Publication Date: 2024.03.26 NUCTECH CO LTD
  • US11938639B2 patent drawing
  • US11938639B2 patent drawing
  • US11938639B2 patent drawing

AI summary

A boundary protection method and system of a radiation detection robot. The boundary protection method comprises: a first laser radar and a second laser radar are arranged diagonally, a first marking rod and a second marking rod are arranged diagonally; a boundary of an interlocking zone is defined by the first laser radar, the second laser radar, the first marking rod and the second marking rod; the object to be detected is placed in the interlocking zone; the radiation detection robot uses rays to detect the object to be detected in the interlocking zone; an early warning zone is provided outside the interlocking zone; wherein when it is detected that a person or object has intruded into the interlocking zone, the radiation detection robot stops emitting rays; and when it is detected that a person or object has intruded into the early warning zone, a warning is issued directly.