Aircraft collision sensor and using method thereof

Abstract

The invention relates to an aircraft collision sensor. The aircraft collision sensor comprises a sensor module, and the sensor module comprises a triaxial acceleration sensor (1), an acceleration processing unit (2) and a triggering device (3). The aircraft collision sensor belongs to the technical field of aviation electronics, and is particularly applied to aircraft accident detection equipment.According to the aircraft collision sensor, by perceiving instantaneous acceleration of an aircraft and calculating speed variation of the aircraft, whether the aircraft collision sensor is involvedin a collision or not can be judged, and trigger signals are provided for related equipment (such as an accident beacon) on the aircraft.

Description

technical field [0001] The invention belongs to the technical field of avionics, and is particularly applied to avionics on-board electronic equipment. Background technique [0002] In order to ensure that in the event of an abnormal aircraft accident, some specific and critical tasks (such as starting the emergency positioning of the aircraft, separating key equipment, etc.) For detection, the aircraft collision sensor is mainly used to sense abnormal changes in the acceleration of the aircraft, and output status signals to other equipment on the aircraft as appropriate. [0003] At present, most of the aircraft crash sensors are mechanical sensors, which use the displacement of inertial components under the action of acceleration to detect changes in acceleration. This kind of sensor generally uses a certain acceleration value as a criterion, that is, after the sensor detects that the acceleration reaches a specified value for a certain period of time (the time of mechani...

AI Technical Summary

Problems solved by technology

In reality, when a plane crashes or crashes, the corresponding collision objects are different, so the resulting waveforms are also different. The acceleration peak value may be large but the duration is short, or the acceleration peak value may be small but the duration is long, but in At a certain flight speed, the speed change of the aircraft is relatively fixed.

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