Offline Departure Control Snapshots for Self-Service Check-In Continuity
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Solution Overview
Problem
Airline departure control systems can become unavailable due to hardware or network faults, leading to suspension of self-service operations and causing inconvenience for passengers, airports, and airlines.
Innovation Solution
An offline departure control system that monitors the status of travel services and generates snapshots of passenger reservation records, allowing self-service terminals to operate offline and update records independently when the system goes offline, ensuring continuous passenger processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the airline departure control system operates in online mode, then real-time passenger record updates are achieved, but system availability is reduced due to hardware or network faults causing suspension of self-service operations
Solution Approach 1:
The offline departure control system pre-generates snapshots of passenger reservation records from the online system before offline operation begins. This preliminary capture of data state allows the offline system to operate independently without real-time connection, maintaining system availability while preserving record integrity through pre-captured baseline information.
Solution Approach 2:
The system creates a copy of the passenger reservation records in the form of snapshots that can be stored and processed offline. These snapshots serve as replicas of the online system's data state, enabling self-service terminals to continue operating with copied data when the online system is unavailable, thus maintaining reliability without continuous network connection.
2Reliability
If self-service operations are suspended in favor of employee assisted check-in, then system reliability is maintained, but productivity decreases due to reduced throughput at the airport
Solution Approach 1:
The system dynamically switches between online and offline operational modes based on system availability. When the online departure control system is available, normal operations proceed. When unavailable, the system transitions to offline mode using pre-generated snapshots, allowing self-service terminals to continue processing passengers without employee intervention, thus maintaining both reliability and productivity.
Solution Approach 2:
The offline departure control system enables self-service terminals to autonomously process passenger operations using locally stored snapshots without requiring connection to the online system or employee assistance. This self-service capability during offline operation maintains productivity by allowing passengers to complete check-in and luggage drop independently, avoiding the throughput reduction associated with employee-assisted check-in.
3Loss of information
If the offline system uses snapshots of passenger records, then data consistency is maintained during offline operation, but device complexity increases due to the need for snapshot generation and management
Solution Approach 1:
The snapshot generation function is extracted from the offline departure control system and placed in the online system. The online system generates and transmits snapshots to the offline system, eliminating the need for the offline system to independently generate or manage snapshot creation. This extraction reduces device complexity of the offline system while maintaining data consistency through centrally managed snapshot distribution.
Data Source
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AI summary
A passenger processing system (and associated method) associated with a travel facility in respect of travel service(s) for processing passenger operation(s) including updating passenger reservation records, comprising: an offline departure control system in data communication with one or more online departure control systems and one or more self-service terminals, the offline departure control system is configured to: monitor online and offline statuses of travel service(s); for each travel service having an online status: receive passenger data from an associated online departure control system enabling a determination of a current status of passenger records at for online passenger operation(s) controlled by the online departure control system, and generate (for new records) a most recent online snapshot of the travel service representing a state of the passenger reservation records for the travel service; and for each travel service having an offline status: generate (when entering offline status) an offline snapshot based on a most recent online snapshot for the travel service, and subsequently update the offline snapshot based on newly received passenger operation data.