Vehicle-Personal Identifier Safety System for Industrial Collision Avoidance
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Solution Overview
Problem
Existing safety systems in manufacturing plants and warehouses are inadequate due to inaudible backup beepers in noisy environments, ineffective warning lights around corners, and confusion with other machines' yellow lights, leading to reduced pedestrian safety and increased risk of collisions.
Innovation Solution
A safety system that uses signal transmitters and receivers to detect vehicles and pedestrians, activating distinct alarm devices and lighting patterns to warn drivers, while allowing defined safety zones with automatic door operation and personal identifiers for secure access, utilizing infrared, radar, or camera detection for precise alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup beepers are used as warning devices, then vehicles can warn others of their presence, but the beepers are not audible in noisy industrial environments where people wear hearing protectors
Solution Approach 1:
The patent introduces visual light signals as an intermediary warning mechanism that bypasses the noisy acoustic environment. Instead of relying solely on audible beepers, the system uses visible light patterns (such as LED arrays) to convey warning information to pedestrians and other vehicles, effectively mediating the communication between vehicles and their surroundings in noisy industrial settings.
Solution Approach 2:
The patent changes the warning signal parameter from acoustic (beepers) to optical (light patterns). By transforming the warning mechanism from sound-based to light-based, the system overcomes the limitation of audibility in noisy environments where hearing protectors are worn, as light signals remain visible regardless of acoustic conditions.
2Reliability
If warning beacons on work machine roofs are used, then vehicles can emit visible warning signals, but the light does not reach around corners and cannot provide warning when aisle crossings are approached from different directions
Solution Approach 1:
The patent segments the warning system into multiple distributed light sources positioned at various locations on the vehicle (front, rear, sides) rather than a single centralized beacon. This segmentation allows the warning signals to cover multiple directions and angles, improving visibility when vehicles approach from different directions or when obstacles block line-of-sight to a single beacon.
Solution Approach 2:
The patent extends the warning coverage by adding spatial dimensionality through multiple positioning angles and orientations of light sources. Instead of a single upward-facing beacon, the system employs light sources oriented in multiple dimensions (forward, backward, lateral directions) to ensure coverage around corners and from various approach directions.
3Reliability
If yellow warning lights are used on vehicles, then vehicles can provide visible warnings, but the yellow light may easily be confused with yellow warning lights of cleaning machines or other work machines
Solution Approach 1:
The patent employs color variation in the warning light signals to differentiate between different types of vehicles and warning conditions. Instead of using uniform yellow lights that can be confused with other machinery, the system uses distinct color patterns (such as red, blue, or alternating color sequences) to convey specific vehicle types and warning states, thereby preventing signal confusion.
Solution Approach 2:
The patent uses periodic or pulsing light patterns rather than steady continuous lights to enhance signal distinction. By implementing flashing, alternating, or rhythmic light sequences, the system creates temporally distinctive warning patterns that differentiate vehicle warnings from other stationary or moving equipment lights in the environment.
4Reliability
If alarm devices are activated continuously to warn of nearby traffic, then pedestrian safety is improved, but people may seek areas where lights are not flashing and sound signals are switched off, creating panic breakings and disrupting workflow
Solution Approach 1:
The patent implements dynamic activation of alarm devices based on real-time detection of nearby vehicles and pedestrians. Instead of continuous activation, the system dynamically adjusts warning signal activation based on proximity sensors and collision risk assessment, activating warnings only when and where needed. This dynamic approach maintains pedestrian safety while avoiding unnecessary disruptions to workflow in areas where no traffic risk exists.
Solution Approach 2:
The patent incorporates feedback mechanisms where the alarm system continuously monitors the environment through sensors detecting vehicle and pedestrian positions, then adjusts warning activation accordingly. The system receives feedback about actual traffic conditions and modifies its warning behavior to provide safety only when risk is detected, preventing unnecessary panic breakings and maintaining workflow stability in safe zones.
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
Enhances pedestrian safety by reducing panic braking, maintaining focus on tasks, and improving collision avoidance through targeted warnings, while allowing stable working environments and efficient movement of vehicles and personnel.
Implementation Method 1
a vehicle identifier arranged to a moving vehicle or work machine and capable of radio communication and, arranged in an operating connection therewith, an alarm unit and a personal identifier arranged in connection with the moving unit and capable of radio communication. The vehicle identifier and the personal identifier are configured to determine a distance between the vehicle identifier and the personal identifier on the basis of at least one signal transmitted between the vehicle identifier and the personal identifier
Implementation Method 2
The units 2 are provided with infrared identifiers 5 for detecting the presence of a person from a distance
Implementation Method 3
A radar-type device or camera detection with image recognition may also be used for detection
Data Source
Figure 1~3
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Figure 5
AI summary
The invention comprises a safety system comprising a vehicle identifier (10) arranged to a moving vehicle or work machine (1) and capable of radio communication and, arranged in an operating connection therewith, an alarm unit (20), and a personal identifier (30, 30a) arranged in connection with the moving unit and capable of radio communication, the personal identifier (30, 30a) comprising an alerting device for warning of vehicles or work machines in the area. In addition, said alarm unit (20) comprises warning equipment for warning of units moving in the area. The vehicle identifier and/ or the personal identifier of the safety system are configured to determine a distance between the vehicle identifier and the personal identifier on the basis of at least one signal transmitted between the vehicle identifier and the personal identifier. The vehicle identifier is configured to activate the warning equipment if the distance between the vehicle identifier and the personal identifier is less than a threshold value determined in advance for the vehicle identifier, and the personal identifier is configured to activate the alerting device if the predetermined distance between the vehicle identifier and the personal identifier is less than a threshold value determined in advance for the personal identifier.