+A **detection system** is a mechanism designed to identify the presence or absence of a specific entity or event. It typically employs a [Sensor](/wiki/sensor) to gather data, then analyzes this information—often through [Signal Processing](/wiki/signal_processing)—to discern patterns or anomalies and trigger a response. Such systems are crucial across diverse applications, from security to scientific research.
+## See also
+- [Automation](/wiki/automation)
+- [Security System](/wiki/security_system)
+- [Monitoring](/wiki/monitoring)
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