Fall-Protection Gate Interlock Using Harness Connection Verification
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Solution Overview
Problem
Access-controlled areas with fall risks, such as industrial facilities and elevated platforms, require a system to ensure that users are properly equipped with fall-protection apparatus before entering to prevent accidents, but existing solutions lack efficient and reliable methods to verify the connection of safety lines to harnesses.
Innovation Solution
A fall-protection interlocking system that includes a latch module at the entry gate and a monitoring system, which sends a signal to unlatch the gate only when the fall-protection apparatus is connected to the user's safety harness, ensuring safe entry into the area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a monitoring system is added to verify connector connection, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The patent combines the monitoring system and latch module into an integrated fall-protection interlocking system. The monitoring system verifies connector connection and directly controls the latch module, merging safety monitoring and access control functions into a unified system that improves reliability without proportionally increasing complexity.
Solution Approach 2:
The system automatically monitors connector connection status and controls gate access without manual intervention. The monitoring system self-activates when the gate approaches, automatically verifies harness connection, and controls the latch module based on verification results, eliminating the need for separate manual safety checks.
2Reliability
If continuous monitoring is implemented, then safety is improved, but power consumption increases
Solution Approach 1:
The monitoring system operates periodically rather than continuously. It activates only when the gate approaches (within 5 feet) and performs monitoring at these intervals, rather than maintaining constant monitoring. This periodic operation maintains safety verification while significantly reducing overall power consumption of the system.
Solution Approach 2:
The system dynamically adjusts its monitoring behavior based on gate position and user proximity. The monitoring intensity and activation are modulated according to real-time conditions - full monitoring when gate is approaching or open, reduced monitoring when gate is closed and no user is present, eliminating the need for constant high-power operation.
Data Source
AI summary
A fall-protection interlocking system for an access-controlled fall-risk area. The system includes a latch module installed at an entry gate of the area and a fall-protection apparatus installed at the area. The interlocking system further includes a monitoring system configured to send a positive signal to the latch module when the fall-protection monitoring system determines that a connector of a safety line of the fall-protection apparatus appears to be connected to a safety harness of a user. Upon receipt of the positive signal, the low-power-consumption latch module can unlatch the entry gate.