1. Why access-point intrusion prevention matters as much as the perimeter fence
In recent years, several Chinese airports have seen non-terrorist intrusions where people climbed fences or slipped into the airside area through access points. Although IoT perimeter intrusion systems have improved fence-line security at some airports, the airport perimeter also includes access points. From a security standpoint, access-point intrusion prevention is just as critical as the fence line — and access-point operations are becoming richer and more complex as civil aviation grows.
Airside security is the bottom line: strict security checks are mandatory before entering the airside area to protect passengers, aircraft and facilities. To strengthen control over vehicles entering restricted zones, an integrated management system combining RFID recognition, access control, vehicle undercarriage scanning, on-site surveillance recording and image capture is required.
2. Overall architecture: personnel lanes + vehicle lanes
The airport access-point intelligent management system is a multi-device coordinated security system with personnel and vehicle lanes. Vehicle lanes are equipped with sliding gates, barrier arms, license plate recognition, under-vehicle inspection systems and flap road blockers; personnel lanes use security gates and conveyor X-ray scanners to screen prohibited items carried by drivers and passengers.
The under-vehicle inspection system is the core of the vehicle lane. Integrating advanced scanning equipment, image processing, database management and intelligent alarm response, it accurately reveals explosives, suspicious items and concealed persons under vehicles, and can link with flap road blockers to greatly improve both security and traffic efficiency.
- Vehicle lane: license plate recognition → barrier arm → under-vehicle scan → road blocker linkage
- Personnel lane: security gate + conveyor X-ray scanner + identity registration
- Control platform: centralized display of vehicle images, recognition results and alarms
3. Standard vehicle entry inspection procedure
Step 1: the vehicle triggers the license plate camera at the access point and the system verifies whether the vehicle is authorized to enter the airside area. Step 2: if authorized, staff raise the barrier arm and the vehicle passes at constant speed; the arm closes automatically via loop detectors. Step 3: the vehicle crosses the first loop detector of the under-vehicle scanner to start scanning and the second to finish; the workstation displays the complete under-vehicle image.
The scan image is bound to the license plate information and front/rear/top images from the lane cameras, then stored on the system server. Step 4: the vehicle stops in the holding area; the driver and passengers enter the access-point screening room for personnel checks and identity verification. Step 5: once cleared, staff lower the road blocker to release the vehicle; after it fully passes, the blocker rises automatically and the signal turns green for the next vehicle.
4. Vehicle exit recording and personnel lanes
Exit management is equally strict: the exit road blocker stays raised at all times to deter malicious vehicle ramming. When a vehicle arrives, staff exit through the personnel walkway after card clearance, the vehicle triggers the license plate camera, and once the screening staff verify the information, the blocker is lowered to release it; the blocker rises automatically after the vehicle crosses the loop detectors.
For personnel lanes: after the vehicle stops, drivers and passengers enter the screening room and pass through the security gate and conveyor X-ray scanner for intelligent detection of prohibited items. Staff and visitors pass through full-height turnstiles with card swipe or facial recognition registration.
5. Integrated control platform: one screen for access-point security
To fully manage airport vehicle-lane security, an access-point management platform should be established: it integrates the under-vehicle inspection system, flap road blockers and sliding gates, lane barriers and license plate recognition into a unified display and control interface. The platform shows vehicle scan images, recognition results and alarms in real time, with multi-view display and switching.
The system maintains a complete vehicle and inspection database — scan images, recognition results and inspection times for every vehicle — supporting efficient retrieval and traceability. When a potential threat is detected under a vehicle, it triggers an audible-visual alarm automatically and can link to the airport security emergency response system for rapid handling.
6. Design basis: regulations and standards for system construction
Airport access-point inspection systems fall under the counter-terrorism key-facility standard construction program, so the design must follow a complete regulatory and standards framework. The top-level basis includes the Civil Aviation Law of the PRC (2021 revision) and the Regulations on Civil Aviation Security Protection of the PRC (State Council Order No. 201); operationally, the Civil Aviation Security Screening Rules (CCAR-339-R1, effective 2017) apply.
At the technical level, systems must comply with the Public Safety Industry Standard (GA498-2012), the Information Transmission, Exchange and Control Technical Requirements for Public Security Video Surveillance Networking Systems (GB/T 28181-2016), the Technical Requirements for Video Security Surveillance Systems (GA/T 367-2001) and the Code for Technical Prevention Engineering of Security (GB 50348-2004), among others. Equipment-level standards include Safety of Information Technology Equipment (GB4943) and the integrated cabling standard (GB/T 50311).
Before construction, verify the applicable scope item by item and translate regulatory requirements into design and acceptance criteria — this is also a key evaluation point in government and civil aviation tenders.
7. Solution extension: from access points to airport-wide security
Access-point systems are not built in isolation: downstream they can interface with parking management and visitor registration systems for a closed vehicle loop; upstream they can connect to the airport integrated security platform, linking with perimeter intrusion prevention, video surveillance and emergency command to form a three-tier defense: "perimeter + access points + terminals".
For large hub airports, further expansion is possible: the access-point platform can be upgraded into an airport security command center aggregating inspection data from all access points and posts; AI image analysis performs intelligent initial screening of under-vehicle images, flagging suspicious targets for manual review — greatly improving throughput inspection efficiency.
8. Implementation and acceptance recommendations
Access-point system construction should follow five phases: "survey & design — equipment integration — installation — joint commissioning — trial operation". The survey phase confirms access-point layout, power and network conditions; the design phase completes point plans and linkage logic; the commissioning phase verifies the timing sequence of plate recognition, under-vehicle scanning, road blockers, barrier arms and the platform one by one.
The trial operation period (at least 2 weeks recommended) focuses on: trigger accuracy under peak traffic, integrity and retrieval speed of stored images, and emergency handling procedures. Acceptance should include operator training covering system operation, image interpretation, preliminary fault diagnosis and emergency manual operation.
Deliverables include: as-built drawings, equipment list with serial numbers, system configuration manual, operation manual, maintenance manual and test records. Within the warranty period, the manufacturer should provide 7×24 response and regular inspection services.
