CN108255149B - Method for remotely clearing faults of unmanned aerial vehicle flight management system - Google Patents
Method for remotely clearing faults of unmanned aerial vehicle flight management system Download PDFInfo
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- CN108255149B CN108255149B CN201711293054.1A CN201711293054A CN108255149B CN 108255149 B CN108255149 B CN 108255149B CN 201711293054 A CN201711293054 A CN 201711293054A CN 108255149 B CN108255149 B CN 108255149B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0275—Fault isolation and identification, e.g. classify fault; estimate cause or root of failure
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Abstract
The invention belongs to the flight control technology of unmanned aerial vehicles, and relates to a method for remotely clearing faults of a flight management system of an unmanned aerial vehicle. The invention sends a remote control instruction to clear the fault of the flight management system through the wireless measurement and control link, namely, a pilot presses a fault clearing reset switch in a ground control station, and the flight management system reinitializes the airborne software of the flight management system and clears the fault information in the nonvolatile memory in the flight management computer under the condition of meeting the fault clearing reset interlocking condition. The invention does not need ground staff to connect PMA to the airplane, shortens the flight preparation time and the runway occupation time, improves the quick touch capability of the airplane and particularly lightens the burden of the ground staff.
Description
Technical Field
The invention belongs to the flight control technology of unmanned aerial vehicles, and relates to a method for remotely clearing faults of a flight management system of an unmanned aerial vehicle.
Background
When the unmanned aerial vehicle is prepared to fly on the runway, fault clearing and resetting are required to be carried out on a flight management system (airplane management system), so that the flight management system is in a fault-free state when the unmanned aerial vehicle takes off. In the past, when an airplane clears the fault reset of a flight management system, a portable maintenance device (PMA) needs to be connected to a special maintenance plug of the airplane on a ground service runway. After the PMA is powered on, maintenance software needs to be opened to manually input a fault clearing reset command.
Disclosure of Invention
The purpose of the invention is: a method for remotely clearing faults of a flying pipe system of an unmanned aerial vehicle is provided.
The technical scheme of the invention is as follows: a method for remotely clearing faults of an unmanned aerial vehicle flight management system sends a remote control instruction to clear faults of the flight management system through a wireless measurement and control link, namely, a pilot in a ground control station presses a fault clearing reset switch, and the flight management system reinitializes airborne software of the flight management system and clears fault information in a nonvolatile memory (NVM) in a flight management computer under the condition that fault clearing reset interlocking is met, comprises the following steps:
a) remote control switch decoding
And the system of the fly pipe judges that the instruction is effective after receiving the remote control switch code for clearing faults sent by the wireless measurement and control link for 480 ms.
b) Remote control fault clearing reset interlock protection
The following interlocking conditions are set for preventing ground station personnel from mistakenly pressing a reset button for clearing faults:
1) remote control fault clearing reset instruction not responding 5s before system initialization
2) The wheel load voting value is the ground;
3) the unmanned aerial vehicle does not drive in and out;
4) the loaded task is a flight task and the flight stage is a standby stage or a flight ending stage;
5) the loaded task is a taxi task and the flight phase word is a standby phase or a taxi end phase.
The invention has the beneficial effects that: the invention provides a method for remotely clearing faults of a flying pipe system of an unmanned aerial vehicle, which does not need ground workers to connect PMA (portable maintenance equipment) to an airplane, shortens flight preparation time and runway occupation time, improves the quick touch capability of the airplane, and particularly lightens the burden of the ground workers (especially in severe weather such as high temperature, rain, snow and the like).
Drawings
Fig. 1 is a flow chart of a method for remotely clearing a fault of an unmanned aerial vehicle flight management system according to the invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
The design difficulty of the invention is as follows:
a) how to prevent the false triggering of the remote control fault clearing reset switch;
b) how to prevent the remote control fault clearing reset switch from being continuously pressed;
c) there is uncertainty in the length of time that the fault clearing reset switch is pressed.
Aiming at the difficulties, the key point of the invention is the judgment of the interlocking condition of the response remote control fault clearing reset of the fly pipe system.
Referring to fig. 1, the method for remotely clearing faults of an unmanned aerial vehicle flight management system of the present invention sends a remote control instruction to clear faults of the flight management system through a wireless measurement and control link, that is, a pilot in a ground control station presses a fault clearing reset switch, and the flight management system reinitializes airborne software of the flight management system and clears fault information in a nonvolatile memory (NVM) in a flight management computer under the condition that fault clearing reset interlocking is satisfied, and comprises the following steps:
a) remote control switch decoding
And the system of the fly pipe judges that the instruction is effective after receiving the remote control switch code for clearing faults sent by the wireless measurement and control link for 480 ms.
b) Remote control fault clearing reset interlock protection
The following interlocking conditions are set for preventing ground station personnel from mistakenly pressing a reset button for clearing faults:
1) remote control fault clearing reset instruction not responding 5s before system initialization
2) The wheel load voting value is the ground;
3) the unmanned aerial vehicle does not drive in and out;
4) the loaded mission is a flight mission and the flight phase word is 0 (standby phase) or 8 (flight end phase);
5) the loaded task is a coast task and the fly phase word is 0 (standby phase) or 3 (coast end phase).
Claims (1)
1. A method for remotely clearing faults of a flying pipe system of an unmanned aerial vehicle is characterized by comprising the following steps: the method is characterized in that a remote control instruction is sent through a wireless measurement and control link to clear faults of the flight management system, namely, a pilot presses a fault clearing reset switch at a ground control station, the flight management system reinitializes airborne software of the flight management system and clears fault information in a nonvolatile memory in a flight management computer under the condition that fault clearing reset interlocking is met, and the method comprises the following steps:
a) remote control switch decoding
The system for managing the flying pipe judges that the instruction is effective after the system receives the fault clearing remote control switch code sent by the wireless measurement and control link and starts to reach 480 ms;
b) remote control fault clearing reset interlock protection
The following interlocking conditions are set for preventing ground station personnel from mistakenly pressing a reset button for clearing faults:
1) the system does not respond to the remote control fault clearing reset instruction for 5s before initialization;
2) the wheel load voting value is the ground;
3) the unmanned aerial vehicle does not drive in and out;
4) the loaded task is a flight task and the flight stage is a standby stage or a flight ending stage;
5) the loaded task is a taxi task and the flight phase word is a standby phase or a taxi end phase.
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| CN201711293054.1A CN108255149B (en) | 2017-12-08 | 2017-12-08 | Method for remotely clearing faults of unmanned aerial vehicle flight management system |
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| CN201711293054.1A CN108255149B (en) | 2017-12-08 | 2017-12-08 | Method for remotely clearing faults of unmanned aerial vehicle flight management system |
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| CN108255149B true CN108255149B (en) | 2020-12-29 |
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| EP3989071B1 (en) * | 2020-10-22 | 2023-09-06 | Honeywell International Inc. | Flight plan storage and recovery system and method |
| US12020580B2 (en) | 2020-10-22 | 2024-06-25 | Honeywell International Inc. | Flight plan storage and recovery system and method |
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Effective date of registration: 20210308 Address after: 611731, No. four, West core road, hi tech West District, Sichuan, Chengdu Patentee after: AVIC (Chengdu) UAV System Co.,Ltd. Address before: 610091 planning and Development Department of Chengdu aircraft design and Research Institute, 1610 Riyue Avenue, Qingyang District, Chengdu City, Sichuan Province Patentee before: AVIC CHENGDU AIRCRAFT DESIGN & Research Institute |
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