Security inspection linkage and video surveillance project at a certain rail station
Covering the station hall, platforms, entrances and exits, transfer channels and equipment areas, it realizes unified linkage management of security inspection machines, gates, broadcasting and video platforms and monitoring of high-density passenger flow scenarios.
Project Overview
Project basic information
project site
Real scene of project site
Project background
The line has a total of 8 stations, 2 of which are transfer hubs, with an average daily passenger flow of more than 400,000 passengers. The original surveillance system had a short storage period and insufficient image quality. Moreover, security inspection and video were independent of each other, resulting in low processing efficiency.
Skylight point construction technical organization
- The actual effective operating time of the skylight point is less than 3 hours each night, and is affected by weather and temporary road closure orders.
- Cable laying and equipment prefabrication at each point are completed in advance during the day.
- The site must be restored 100% every night after the station, including floor tile reset and sanitation.
- All skylight point operations are approved and sold by the traffic dispatcher.
Linkage results
- The time for handling disputes at security checkpoints has been shortened from an average of 25 minutes to 6 minutes.
- Congestion in the transfer channel can be warned 3-5 minutes in advance, so station management has enough time to provide guidance.
- The equipment area intrusion alarm is linked to the station broadcast, and any abnormality is immediately evicted.
Project difficulties
Issues that need to be addressed during project advancement
Very short construction window during operating hours
Work can only be done at skylight points from 00:30–04:00 AM
The dome of the station hall is high and it is difficult to cover it with conventional installation
x The entrance and exit need to cover the self-service ticketing and security check queuing areas
The passenger flow density in the morning and evening peaks is extremely high
Conventional monitoring cannot support congestion warning
The transfer station is managed by multiple units and the authority boundaries are complex
Station affairs, security inspection, public security, and control centers have different authority
solution
Technical and construction measures taken to address the above difficulties
Arrange construction in four shifts according to skylight points
Points completed every night must be restored to standardized status on the same day
Special top-view camera in the security area
Covers the entire baggage conveyor belt, and disputes can be accurately restored
Distribution of strong and weak current zones on the platform level
Avoid the equipment installation section above the screen door
Four levels of authority and special authorization for public security
The police can independently access the website screen in the station police room
Project results
Actual operating data after the system goes online
Main equipment list
This project mainly uses equipment (XLD is mainly self-developed)
- 2 million network hemispheres — 368 stations, halls and aisles
- Low-illumination gun — 128 units, platforms and entrances
- Special cameras in the security area — 64 units, overlooking the conveyor belt
- 64-channel NVR — 14 units, station-level storage + center-level backup
- Passenger flow density analysis server — 1 set, line network level
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