Avionics system bus backup control method
A technology of avionics system and control method, applied in general control system, control/adjustment system, instrument, etc., can solve the problems of total weight and cost increase, achieve the effect of improving reliability and ensuring safe and reliable operation
Active Publication Date: 2019-09-03
JIANGXI HONGDU AVIATION IND GRP
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Problems solved by technology
Due to the addition of a bus controller in the avionics system, its total weight and cost increase accordingly
Method used
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Embodiment 1
[0023] The avionics system provides two ways of master / backup controller automatic switching and manual switching. The automatic switching method adopts the redundant design of the main controller periodically sending the dog feeding signal and the working status signal to ensure that when the master controller fails, the task management processor can smoothly take over the bus control function; when the system is in disorder, the pilot adopts manual control "three switch", such as figure 1 As shown, the system can be guaranteed to work normally.
[0024] 1) Manual switching of master / backup controller
[0025] The avionics system provides a manual three-position switch "bus switching". Under normal circumstances, the "bus switching" switch is in the "normal" position, and the pilot does not need to control it. Phenomenon), you can turn the switch to "Backup 1", then the system will force the bus controller to control the bus, and the task management processor will communica...
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The invention discloses an avionics system bus backup control method. The control method comprises the following steps: S1, judging a state of a three-position switch, if the three-position switch islocated at a normal gear, serving a task management processor as a remote terminal on a bus to communicate with a bus controller, receiving a watchdog signal sent by the bus controller and a working state sent by the bus controller; S2, if the task management processor monitors that the bus controller is abnormal, enabling the task management processor to loot the right, and activating a backup bus control function; and S3, if the bus controller and the task management processor cause system disorder due to alternative right looting, manually controlling the three-position switch according toan actual condition to guarantee the smooth process of the right handover. The airplane task management processor is used as the backup bus controller, the dual-redundancy design of the avionics system bus control is realized under the condition of not increasing the airplane weight and the cost, and the task reliability of the avionics system is improved.
Description
technical field [0001] The invention relates to the technical field of aircraft avionics system design, in particular to a bus backup control method for an avionics system. Background technique [0002] The current avionics systems of fighter jets / trainers generally adopt a combined configuration, which cross-links most of the avionics subsystems through the MIL-STD-1553B bus to achieve unified information scheduling. In the bus control design of the avionics system, a dual-redundancy design is usually adopted, using two bus controllers, one of which is used as the main controller and the other as the backup controller. When the main controller fails, the backup controller performs comprehensive control, management and scheduling of the avionics system to realize the normal operation of the avionics system. Due to the addition of a bus controller in the avionics system, its total weight and cost will increase accordingly. For light and small aircraft, a low-cost design is ...
Claims
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Login to View More IPC IPC(8): G05B9/03
CPCG05B9/03
Inventor 滕建方陈英张弘余伏章余奎赵平均刘滨陈晓冬李维王庆伟颜伟平张明明汪高峰谢前进万兴祥江涛吕志超朱俊云
Owner JIANGXI HONGDU AVIATION IND GRP