What is the departure system

The mainframe of the departure system is located in Beijing, and the terminals used by the users in the airports around the world are connected to the mainframe through communication equipment. The commands made by the users on the terminals are transmitted to the mainframe for processing, and then the feedback information is transmitted back to the user terminals. Computerized Departure Control System (DCS), or DCS for short, is a large-scale on-line transaction processing system for airline passenger services introduced by Civil Aviation of China (CAAC) to the U.S. Unilever Company, and is divided into three major parts, namely, Passenger Check-In (CKI), Load Balancing (LDP), and Flight Data Control (FDC). --Passenger check-in system (CHECK-IN) is a set of automatic control and record the process of passenger boarding activities. It records the flight, voyage, and seat confirmation of the passenger, additional passenger data (e.g., baggage weight, transit terminal, etc.), and passenger check-in, i.e., acceptance of the passenger or listing the passenger as a standby. It can sequentially receive passengers, standby passengers, or selectively receive them; passengers can also check in for more than one flight at a time. --LDP is the abbreviation of English LOAD PLANNING, which is an application module in the computerized departure system of Civil Aviation of China. It is used by airlines and airport load distribution staff. It can be used in conjunction with the check-in function module (CKI) in the departure system or separately. The operator inputs the necessary data into the departure system in the form of instruction, and the system can accurately calculate the required results. Aircraft loading is a necessary procedure before takeoff. The loader takes into account the various factors affecting the balance of the aircraft, determines the distribution of the aircraft load, obtains the necessary weight, center of gravity and other values of the aircraft before takeoff, and determines whether the weight and center of gravity of the aircraft are within the prescribed range. The traditional manual loading method has complicated working procedures, more links, and human factors have great influence, which is easy to produce errors. Computerized loading frees the loader from the cumbersome manual method, greatly improves the loading work efficiency and loading accuracy, and has been widely adopted by the world aviation industry. --Flight data control system FDC (Flight datacontrol), is mainly responsible for the data management work of the check-in system; usually the passenger check-in flights are edited by the flight data control system, and the seasonal flight schedule is generated in the system for the preparation of the passenger check-in. The important work is to apply to the reservation system to get the passenger list.