The product provides four inspection modes (fingerprint recognition, face recognition, card recognition, and iris recognition) for users to choose.If any passenger fails to pass the biological recognition, it will alarm and intercept him in the inspection passage for manual handling by a frontier inspector.?It can realize intelligent voice prompts (in Chinese), guidance for passenger and certificate inspections, reporting inspection results, giving audible and visual alarms, preventing intrusion and tailgating, etc.It ensures staff monitoring, security and stability for the s in the restricted areas of frontier inspection stations.