Radio-Tracked Safety Identification to Prevent Unnecessary Shutdowns
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Solution Overview
Problem
Current safety systems cannot reliably identify whether an object is a person or not, which is crucial for advanced safety functions, leading to unnecessary machine shutdowns and reduced productivity, as they primarily detect basic physical features rather than specific object types.
Innovation Solution
A safety system combining a radio location system and an identification sensor, where a radio transponder on the person or object provides position data and a marking on the object supplies identification data, allowing the control and evaluation unit to verify the identity through redundant validation, enabling precise monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If basic physical feature detection is used for safety monitoring, then safety functions can be implemented, but object identification capability is lost
Solution Approach 1:
The system divides the detection task into two independent parts: a radio location system for determining position and an identification sensor for determining object type. This segmentation allows each subsystem to specialize in one aspect, maintaining safety reliability while recovering object identification information that would be lost in a unified detection system.
Solution Approach 2:
The control and evaluation unit acts as an intermediary that receives and correlates data from both the radio location system and identification sensor. It combines the position data and identification data to form checked person data or checked object data, enabling the system to maintain both safety monitoring and object recognition capabilities.
2Loss of information
If object classification is performed using image data processing, then object identification is achieved, but system complexity and cost increase
Solution Approach 1:
The system replaces complex image data processing with a direct identification sensor approach. Instead of capturing and analyzing images to determine object type, the identification sensor directly detects object characteristics and transmits identification data, significantly reducing computational complexity and processing requirements.
Solution Approach 2:
The system uses a radio transponder as a simplified copy or representation of the object's identity. Rather than analyzing the full complexity of the object through image processing, the transponder provides a direct digital representation of object identification information that can be easily processed and validated.
3Reliability
If safety sensors monitor all objects uniformly, then safety is maintained, but productivity decreases due to unnecessary shutdowns
Solution Approach 1:
The system applies different monitoring approaches to different objects based on their identification. Persons are monitored with both position tracking and identification verification, while other objects may receive different levels of monitoring. This localized quality approach allows the system to maintain safety for critical objects while reducing unnecessary interruptions for non-critical situations.
Solution Approach 2:
The safety monitoring system dynamically adjusts its response based on object identification. When the control and evaluation unit determines that a detected object is a person versus another type of object, it can dynamically modify machine control actions, allowing continued operation in non-hazardous situations while maintaining safety responses for person detection.
Data Source
AI summary
A safety system and a method having a safety system for localizing and identifying a person or an object, a control and evaluation unit, at least one radio location system, and having at least one identification sensor for identifying the person or the object, wherein a marking is arranged on the person or on the object, wherein the radio location system has arranged radio stations, wherein at least one radio transponder is arranged on the person or on the object, wherein position data of the person or of the object can be determined by means of the radio location system, and wherein the position data can be transmitted from the radio station of the radio location system to the control and evaluation unit, and identification data from the marking on the person or the object can be determined by means of the identification sensor.