The scenario
An underground mine needs to control truck entry at a gate. A biometric scanner verifies the driver's identity, and a hazard monitoring system detects toxic gases or unstable ground. A manual override allows remote operation. The logic gate circuit processes these signals to output an entry permit.
What is in this drawing
Read the decisions behind it.
01
Which inputs are considered?
02
How to combine biometric and hazard signals?
03
Should manual override bypass all safety checks?
For any safety interlock logic where multiple signals must be combined to enable/disable an actuator.
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