The Design Of Control System Based On Flight Information And Data Acquisition Of Energy Consumption In The Boarding Bridge

Boarding bridge is made of glass and alloy. This kind of combination of high light pass and thermal conductivity materials will lead to the case that the temperature of boarding bridge is susceptible to influences of external factors. Especially in hot summer, the temperature inside the boarding bridge will rise sharply due to the illumination, which is a hard test to Air Conditioning System. For the airport, the high- frequency operation of Air Conditioning System needs to consume a great amount of power, which will increase operating costs of airport. However, turning off the air condition or setting it as low-frequency will severely affect the comfort degree of passengers or even cause great losses to the interests of airlines. Therefore, how to control the operation of air conditioning system in the boarding bridge reasonably is the main content of this thesis.As an important passageway for passengers to take the flight, the boarding bridge is very different from the common passageway. The usage of boarding bridge is closely related to flight by the bridge. That is to say, when the flight rely on the bridge, the boarding bridge is used for the passengers and flight crew. when the flight leave, the boarding bridge lay idle.Therefore, the operation of boarding bridge equipment directly relates to the flight. Based on this characteristic, this thesis puts forward a control policy which combines the flight information control with fuzzy algorithm. This policy can automatically control air condition breeze fan, in order to cut its energy use without affecting the passengers' comfort degree.In the matter of control flow design, the system will first estimate the flight information,and then extract the information of the flight about to arrive, and monitor the temperature and temperature gradient of the corresponding boarding bridge. The system will calculate the controlling quantity according to control rule of the fuzzy control and output specific time to open the air condition in the boarding bridge and the frequency of breeze fan. In the matter of system design, the core of the monitoring system is configuration software and PLC. PC using configuration software and database software, realizes the flight information extraction,analysis and monitoring of energy consumption and send instructions. Lower computer includes PLC and frequency converter. PLC realizes the acquisition of real-time field temperature and controls the speed of the breeze fan in the combination of frequencyconverter.In the structure of this thesis, firstly, this thesis discusses the problems of air condition temperature control in the boarding bridge and the main purpose and significance of adopting the fuzzy control system based on the flight information. Subsequently, this thesis explains the overall design and control policy of the system in more detail, including the simulation of fuzzy control, the construction of upper computer and lower computer, the design of programming and interface, the use of wireless network GPRS. In the end, this thesis introduces and records the concrete realization process and experimental conditions of the system.