The security inspection equipment and security products applied in critical infrastructure (such as energy, transportation, communication, water conservancy, etc.) need to cover multiple dimensions such as physical protection, network security, and industrial control security. Based on relevant standards and practices, these equipment and products can be classified into the following categories and comply with national regulatory requirements such as the "Cybersecurity Law" and the "Regulations on the Security Protection of Critical Information Infrastructure"

1. Physical security inspection equipment

Personnel and item inspection equipment: including X-ray luggage inspection machines (used for scanning tool kits and materials, featuring high penetration and low false alarm rate)

Handheld metal detector (for auxiliary fine inspection of metal contraband)

Security checkpoint (detecting electronic devices or metal items carried)

as well as millimeter wave security gates (high-frequency scanning achieves high detection rate and low radiation exposure, suitable for transportation hubs)

Dangerous goods detection tool: Liquid detector (identifies flammable and explosive liquids)

Toxic gas detection equipment (monitoring gas leakage in enclosed spaces)

Explosion-proof tank (for temporarily storing suspicious explosives)

and trace detector (for nanogram-level explosive detection)

Auxiliary inspection equipment: vehicle bottom inspection mirror (for checking hidden dangers at the bottom of the vehicle)

And portable baggage screening machines (for temporary checkpoints)

II. Network security products

Network boundary protection: Firewall (performs parsing and access control on data flows)

Intrusion Detection System (IDS) (listens to network packets to detect abnormal behaviors)

And Intrusion Prevention System (IPS, which intercepts network attacks in real time)

Data and Access Security: Data Backup and Recovery Products (Ensuring Data Security of Information Systems)

Network security audit products (for event tracing and security violation analysis)

as well as isolation products (establishing security control points between different network domains)

Vulnerability Management and Response: Network Vulnerability Scanning Products (detecting system security weaknesses)

And anti-spam products (to prevent malicious email attacks)

III. Industrial control system security products

Core equipment protection: Programmable Logic Controller (PLC equipment, which must meet safety requirements for performance indicators such as instruction execution time)

Industrial control host security (protecting host devices such as engineer stations and operator stations from Trojan attacks)

System-level security solution: Industrial Internet platform protection (combining physical and cybersecurity measures to ensure the stable operation of industrial critical information infrastructure)

And intelligent metering security products (guaranteeing information access rights and data integrity in the energy sector)

IV. Intelligent security and management system

Behavior monitoring and early warning: video surveillance system (covering the entire area, integrating night vision and intelligent analysis functions, automatically identifying violations)

Drone monitoring (for high-altitude inspection and emergency response)

Access control and authentication: person-identity verification device (verifying personnel identity)

Electromagnetic shielding cabinet (to prevent signal leakage)

And electronic fence and intrusion detector (to prevent external intrusion)

Overall, the deployment of these devices and products requires security certification or testing (such as CMA certification and ladder aluminum plate penetration testing)

and comply with national standards (such as GB 12664-2024)

To achieve multi-level protection, the system integration should establish a three-tier verification system (qualification verification, factory inspection, and scenario stress testing)

Ensure the resilience and continuous operation of critical infrastructure

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