5.1.1.4 - Detect and Verify Emergencies from Surveillance and Sensors DFD

This DFD shows the processes that make up the Detect and Verify Emergencies from Surveillance and Sensors facility within the Manage Emergency Services function. These processes analyze sensor and surveillance data collected from secure areas, detect threats and other potential incidents, and exchange threat information with other functions.

The key points about the facility are as follows:

Sensor and surveillance equipment controlled and monitored for operational status and equipment faults;
Sensor and surveillance data analyzed to detect and verify threats;
Detected threats correlated with alerts and advisories received from other processes and terminators;
Threat information disseminated to other functions;
Sensor and surveillance data processing controlled by operator interface;
Infrastructure integrity monitored and disseminated to other functions;
Traveler images are analyzed and matched.

There are six processes in this DFD:
a) Manage Secure Area Sensors (5.1.1.4.1)
b) Manage Secure Area Surveillance (5.1.1.4.2)
c) Analyze Threats (5.1.1.4.3)
d) Disseminate Threat Info (5.1.1.4.4)
e) Analyze Traveler Image (5.1.1.4.5)
f) Provide Operator Interface for Security (5.1.1.4.6)

Video and audio surveillance data collected from all secure areas is input to process (b), analyzed, and correlated. The data and the processing results are then forwarded to process (f) for output to the operator and to process (c) for correlation with collected sensor data and data from other sources, such as emergency management functions in other jurisdictions and from Alerting and Advisory Systems. Similarly, sensor data (threat sensors, object, motion, and intrusion) collected from all secure areas is input to process (a), analyzed and correlated. The data and the processing results are then forwarded to process (f) for output to the operator and to process (c) for correlation with collected surveillance data and data from other sources. Following threat analysis in process (c), the results are output to process (d) for dissemination to other major functions. Process (f) controls all processing and analysis of collected sensor and surveillance data from (a) and (b). Data collected from another process is input to process (a) to monitor infrastructure integrity; the results are forwarded to other processes. Raw surveillance (images) are input to process (e) and used by (e) to match images received from Alerting and Advisory Systems (AAS). Matching results are returned to the operator interface, process (f) and to the AAS. All surveillance and sensor faults collected by processes (a) and (b) are sent to other processes in the Manage Maintenance and Construction facility for correction.

DFD: 5.1.1.4 - Detect and Verify Emergencies from Surveillance and Sensors

Parent DFD: 5.1.1 - Detect and Verify Emergencies

PSpecs in this DFD: