Fault-tolerant measurement estimation method of cabin pollutant concentration

Abstract

The invention provides a fault-tolerant measurement estimation method of cabin pollutant concentration. The fault-tolerant measurement estimation method of the cabin pollutant concentration comprisesthe steps of: setting sensors used for measuring the pollutant concentration at the pre-set positions of a cabin, and forming a wireless sensor network by the sensors, wherein the sensors include primary sensors and secondary sensors forming measurement nodes; the pre-set positions of the cabin include one or more positions selected from a group consisting of a window, the top of the cabin, the bottom of the cabin and a seat; and the measurement nodes formed by the primary sensors and the secondary sensors are used for performing estimation processing on measurement information; obtaining measurement results of the sensors in the wireless sensor network, including: obtaining a measurement result of the primary sensors and obtaining a measurement result of the secondary sensors; and obtaining optimal estimation of the actual pollutant concentration by using the fault-tolerant measurement estimation method. The fault-tolerant measurement estimation method of the cabin pollutant concentration provided in the invention has better fault-tolerant estimation capability in interference and path loss conditions.

Description

technical field [0001] The invention relates to a processing method for monitoring data of pollutants in an engine room, in particular to a fault-tolerant measurement and estimation method for the concentration of pollutants in an engine room. Background technique [0002] The rapid development of the civil aviation industry has made a safe and comfortable cockpit environment one of the important concerns of aircraft designers and operators, and passengers and flight attendants have also put forward higher requirements for the environment of the cabin. Once a mechanical failure, pipe rupture or seal failure occurs in a small and closed cabin, the air in the cabin will be polluted, causing adverse physical reactions to passengers and crew members, such as dizziness, headaches, ear diseases, dry eyes And sore throat, etc., can lead to serious nervous system dysfunction, which seriously threatens flight safety. In addition, the world's energy resources are becoming increasingl...

AI Technical Summary

Problems solved by technology

[0003] In the cockpit of an active aircraft, only a single sensor is used to monitor the smoke and fire alarm situation in the cabin, but due to excessive sensitivity or the interference of tiny particles from the outside, false alarms are prone to occur, which leads to the diversion of the aircraft and causes a lot of human and financial losses.

If simply increase the alarm threshold, it will increase the potential safety hazard

At present, the monitoring of pollutants in the cabin is mainly after landing, and it is difficult to monitor the concentration of pollutants in the cabin in real time

The real-time online monitoring of the concentration of pollutants in the cabin not only requires a certain amount of energy consumption, but also often cannot detect the accurate release of pollutants in time under the conditions of packet loss and path loss in the observation value.

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