The baggage handling system of a large international airport is a huge design, far beyond our imagination, Hong Kong Airport T3 uses a 30 km belt conveyor system and 38 km high-speed pallet system. The belt conveyor system uses the ATR automatic barcode identification sorting system and the high-speed pallet system used in the 2.2km underground tunnel of T3A-T3B, which integrates RFID to ensure that baggage is accurately and efficiently transferred.

       The following is a brief introduction to the baggage handling system at Hong Kong Airport.

一、General view of the earth cage

二、Ground cage includes：

      (1)  Conveyor belt transfer system（30km）

       The whole floor cage is covered with BHS belt conveyor machinery, and the turntable sorter is installed in the channel where the direction needs to be determined. The ATR system is installed on the diverter, the entrance of the automatic sorter and the automatic sorter to read the baggage bar code label. ATR is 360 degrees all-round, to cover the 6 sides of the baggage, ATR reads the baggage bar code to the PLC, PLC and the upper system to communicate, so as to determine the destination of the baggage.
 

      (3)  The BHS system must be integrated with the security system, and the system needs to define the communication protocol between the BHS and the security equipment.

      (4)   BHS, through the mechanical and control units described above, is composed of several subsystems according to the business functions: the originating baggage handling system, the arrival baggage handling system, the transit baggage handling system, the bulky baggage handling system, and the pallet recovery system.

三、Integration and sorting of BHS and security systems

    1、First of all, Check-in, the cashier put money on the bar code affixed to the baggage, put the line into the tray, the baggage tray into the conveyor belt.

    2、BHS sends the baggage barcode to the security equipment, and the baggage is X-rayed through the security equipment.

    3、The inspector analyzes the image, gives the inspection conclusion, and informs BHS.

    4、BHS will sort the baggage according to the conclusion of the image inspection, and the baggage with no problems will be shunted into the baggage claim turntable according to the destination route, waiting to be packed and shipped to the aircraft.

    5、The luggage in question enters the next inspection link, T3 is the five-level security check mode, the third level is the CT scanning equipment, the fourth level is the trace detection equipment, and the fifth level is the manual opening of the bag.

         BHS needs to obtain baggage information and flight information through the flight information system to decide where the baggage will go. Data exchange is realized through communication between PLC and host computer.

四、 CCTV and BHS operation monitoring system are configured to monitor system operation in real time

     Baggage monitoring system, green indicates normal, if abnormal or blocked, will turn yellow or red, not working partition system will arrange to enter the energy saving mode.

      Each important entrance of the baggage system will have a camera to transmit the actual image back to the monitoring room, and the staff must constantly search and check with the computer system, if there is a blockage or stagnation, you can immediately use the walkie-talkie to tell the site personnel to conduct manual evacuation.

五、RFID radio frequency identification system

        The company is only responsible for the RF part of the system, including: Uhf reader, UHF antenna, RFID electronic tag and RFID electronic tag printer and other RF related equipment, after the successful launch of the system, effectively reduce the loss rate of Li Bank, improve the safety of flight, reduce the airport processing costs, simplify the labor costs of baggage handling, thus greatly reducing the overall labor cost. Increased luggage throughput!

六、Extended application of Radio frequency identification system (RFID)

        The above cases illustrate the application of radio frequency identification system in airport baggage sorting, in fact, in today's big data cloud computing, there are more heavy things than passenger baggage sorting to use radio frequency identification system, such as: Automatic sorting of express parcels, automatic sorting of postal parcels and letters, automatic sales cabinets, Internet of Things (IOT) systems, etc., all use this kind of technology.

        In view of the high consistency between each link of the radio frequency identification system and the requirements of the corresponding device, the lower the defective rate of the RFID label printer, the higher the recognition rate of the RFID electronic label, the better, the output power of the RFID reader as large as possible, the wider and stronger the signal coverage of the UHF antenna, the better. Only in this way can we ensure that errors are reduced during the identification process. In addition, a group of professional teams can accurately find out the problem during the debugging process to ensure that the project is on time.

     Our company has a group of professional teams engaged in RF R & D and production for many years, can cooperate with customers to come up with a reasonable plan as soon as possible, and has many years of practical debugging experience, to ensure the safe operation of customer projects.