I. Product Overview
The Henan "Huhang" ground-based special-purpose vehicle aircraft-approach safety protection system is compatible with passenger and cargo elevators in airports, featuring two core functions: automatic emergency braking before approaching the aircraft, and safety assistance during aircraft-approach operations. Utilizing multiple sensors for detection and integrating an intelligent controller, the system enables graded speed control and automatic braking, thereby addressing the safety concern of potential aircraft body scrapes when passenger and cargo elevators operate in close proximity to aircraft. This system complies with the safety technical requirements for ground-based service equipment of civil aviation aircraft.
II. System Composition
1. Type I radar grid / Type II radar grid
2. Antenna switch
3. Optical 3D LiDAR (optional)
4. ADAS 4G Host Unit
5. AEB controller
6. Linear brake proportional motor
7. Operating mode indicator light
8. Supporting accessories (wiring harnesses, brackets, etc.)
III. Working Principle
During vehicle operation in proximity to an aircraft, the distance-measuring laser grating continuously monitors the spacing between the vehicle and the aircraft, simultaneously collects the vehicle's travel speed data, and transmits this information to the AEB controller. The controller intelligently regulates the vehicle's speed based on predefined distance thresholds, enabling segmented speed control; once the maximum safe distance is reached, the system automatically initiates braking to prevent a collision. The probe switch serves as a physical redundancy safeguard, further enhancing operational safety.
IV. Tiered Speed Control Parameters
l Within 10 meters of an aircraft: vehicle speed limit is 5 km/h
l Within 4 meters of an aircraft: vehicle speed limit is 2 km/h
l Within 1 meter of an aircraft: vehicle speed limit is 0.8 km/h
l When the safety threshold is reached, the system automatically applies braking.
l Product performance specifications: Recent approach distance ≤ 20 cm; control accuracy ≤ 5 cm |
V. Core Product Advantages
1. Hierarchical intelligent speed control: as the distance decreases, the vehicle speed is reduced stepwise, enabling smooth approach operations and reducing the operational load on the driver.
2. Multi-layered redundancy protection: primary sensing via laser grating combined with physical protection of the probe switches; optional integration of 3D LiDAR ensures more stable detection performance under complex operating conditions.
3. Automatic emergency braking: When a risk approaches, the system automatically applies braking to prevent aircraft scratches and reduce the risk of significant property damage.
4. Operational data traceability: The ADAS 4G host records comprehensive operational data throughout the entire process, facilitating fleet operation and maintenance management at airports.
5. Civil Aviation Standard Compliance: All specified indicators comply with the Technical Specifications for Ground Equipment Aircraft-Connection Safety in Civil Aviation, making these standards applicable to the retrofitting of passenger and cargo elevators at civil aviation airports, as well as to the integration of such equipment with new aircraft.
VI. Compatible Vehicle Models
Airport passenger elevators and airport cargo elevators
