Voice alarm method based on multi-channel control command with delay

Abstract

In order to solve the problem that a voice alarm method of the existing onboard avionics system is prone to generate an alarm failure and a secondary alarm, the invention provides a voice alarm methodbased on a multi-channel control command with delay. In the invention, according to a defined channel collection sequence, an "OR" operation is performed on valid data collected in a current round, and in an alarm generation stage, an alarm command can be recognized immediately, and the alarm failure is effectively avoided. The "OR" operation is performed on a temporary decision result formed bythe "OR" operation on the valid data collected in the current round and a decision result in a previous round to form a final decision result of the current round. At the end of the alarm, when a channel that first ends the alarm restores a non-alarm command, since an OR operation is always performed on the decision result of the previous round, it is possible to prevent that the alarm is mistakenly considered as ended and the channel that ends the alarm after the delay collects an alarm command to generate a false alarm, and the secondary alarm is effectively avoided.

Description

technical field [0001] The invention belongs to the field of airborne avionics and relates to an alarm method. Background technique [0002] There are two voice alarm methods for the existing airborne avionics system: [0003] Alarm method 1: Send commands to the auditory system through the visual alarm system, first send the command of which channel is currently valid, and ensure that only one channel is always valid, and then send the alarm command; The analysis of the alarm command and the voice alarm are executed in the channel. Disadvantages of this method: 1. Although there are multiple channels, only one channel is confirmed to be valid at a time. From the perspective of security, it does not actually play a role in the security of multiple channels backing up each other; 2. Increases the upper level of vision Due to the complexity of system design, the current only valid channel needs to be additionally specified each time. When the effective channel is abnormal, i...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing voice warning method of the airborne avionics system, although it has multiple channels, it does not actually play a role in the safety of multiple channels for mutual backup, and it is easy to generate missing alarms; and solve the existing voice warning method 2 in the delay time When it is larger, it is easy to generate the problems of missing alarm and secondary alarm. The present invention provides a voice alarm method based on multi-channel control commands with delay

Images