Access Area Monitoring for Safe Vehicle Passage Control
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Solution Overview
Problem
Existing systems for controlling access to security areas in logistics environments face challenges in efficiently allowing authorized vehicles while preventing human operators and unauthorized vehicles, with current methods often resulting in delays or accidents due to inadequate safety standards.
Innovation Solution
A system utilizing a monitoring device with multiple sensor units to create overlapping surveillance fields that cover the access area, allowing authorized vehicles to pass through within a defined time window while ensuring that human operators and non-authorized vehicles are prevented from entering the security area, using 2D lidar sensors for reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety door with sensors is used to interrupt operation of automated vehicles when a person enters, then safety for human operators is improved, but access efficiency for authorized vehicles deteriorates due to unnecessary interruptions
Solution Approach 1:
The monitoring area is segmented into multiple zones (first monitoring area covering the entire access area, and second monitoring area covering a sub-area). This segmentation allows the system to differentiate between authorized vehicle passages and unauthorized human entries by detecting which specific zones are violated, enabling selective response rather than blanket interruptions.
Solution Approach 2:
The system performs preliminary classification of detected objects before triggering safety interruptions. By using sensor units to detect and classify objects in advance (distinguishing between authorized vehicles and unauthorized persons), the system can prepare appropriate responses, allowing authorized vehicles to pass through without interruption while preparing to interrupt unauthorized entries.
2Reliability
If multi-door gates or similar systems are used to prevent unauthorized access, then security for the secure area is improved, but vehicle passage time increases causing delays
Solution Approach 1:
The patent replaces physical multi-door gate systems with an optical/electronic monitoring system using sensor units that detect objects in the access area. This substitution eliminates the need for mechanical door operations while maintaining security through continuous monitoring and automated response, significantly reducing vehicle passage time while preserving security functionality.
Solution Approach 2:
The system introduces a control unit as an intermediary between the sensor units and the automated vehicles. This control unit processes sensor data, classifies detected objects, and communicates with vehicles to coordinate passage, enabling smooth flow of authorized vehicles while maintaining security monitoring without requiring physical barriers or door operations.
3Reliability
If safety switches or sensors are activated to interrupt automated vehicle operation, then protection of human operators is improved, but operational flow of authorized vehicles deteriorates
Solution Approach 1:
The monitoring fields are configured dynamically with different coverage areas (first monitoring area for entire access, second monitoring area for sub-area). The system can adapt its monitoring strategy based on the specific situation, allowing authorized vehicles to pass through monitored zones without triggering interruptions, while maintaining protection capability when unauthorized entries are detected.
Solution Approach 2:
The system establishes feedback loops between sensor units, control unit, and automated vehicles. The control unit receives continuous information from sensors about objects in monitoring areas and communicates with vehicles to coordinate passage. This feedback mechanism allows authorized vehicles to be recognized and allowed to pass smoothly while ensuring that unauthorized entries are detected and responded to appropriately, maintaining both safety and operational flow.
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 safe and efficient access to security areas by preventing unauthorized entries and minimizing delays, maintaining operational efficiency while ensuring safety standards are met, even in areas with mixed traffic.
Implementation Method 1
A system utilizing a monitoring device with multiple sensor units to create overlapping surveillance fields that cover the access area, allowing authorized vehicles to pass through within a defined time window while ensuring that human operators and non-authorized vehicles are prevented from entering the security area, using 2D lidar sensors for reliable operation.
Data Source
Figure 1~3
Figure 2a~2d
AI summary
The present invention relates to a system (10) for controlling access to a security area (B1) in an operational environment, in particular a logistics facility, comprising an access area (B3) which separates the security area (B1) from a freely accessible area (B2) of the operational environment, a monitoring device (12) which comprises at least two sensor units (12a) opposite each other with respect to the access area and is configured to span at least two monitoring fields (SF, WF1, WF2) in the access area (B3), wherein a first of the monitoring fields (SF) covers the entire access area (B3) and at least a second of the monitoring fields (WF1,WF2) covers a sub-area of the access area (B3) or the at least one second monitoring field covers a sub-area of the access area and the first monitoring field and the at least one second monitoring field jointly cover the entire access area; and a control unit (14) which is operationally coupled to the monitoring device (12) and is further equipped for communication with vehicles (F1) moving in the operating environment, wherein the control unit is further equipped to monitor, upon detection of a violation of the corresponding second monitoring field after a vehicle has requested passage through the access area, a maximum permissible time period within which safe passage through the access area is possible.