CN106468911B - A kind of fault message backup method for fault diagnosis - Google Patents
A kind of fault message backup method for fault diagnosis Download PDFInfo
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- CN106468911B CN106468911B CN201510515432.0A CN201510515432A CN106468911B CN 106468911 B CN106468911 B CN 106468911B CN 201510515432 A CN201510515432 A CN 201510515432A CN 106468911 B CN106468911 B CN 106468911B
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- protection zone
- acquisition device
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- recording device
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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
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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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
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14084—Remote diagnostic
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Debugging And Monitoring (AREA)
Abstract
The present invention relates to a kind of fault message backup methods for fault diagnosis.It is added write-protected zone in product important state point and operates on the basis of product normal fault message record.Product important state information is charged into protection zone memory space.The record information can be downloaded and be checked by ground-support device.The protection zone maintaining method can provide reliable reference frame for the malfunction elimination after product operation irregularity, be mutually backups with the fault message of former common mode record, improve product reliability.
Description
Technical field
The invention belongs to avionics fields.
Background technique
Airborne equipment of the flight parameter acquisition and recording system as aircraft indispensability, can play and record in aircraft flight
The important function of polymorphic type flying quality.The flight resume information of record is complete, is accurately aircraft flight crash analysis, daily dimension
Shield, Training valuation etc. provide reference frame.
Since the poor feature of monitoring property, FDR system own reliability mention airborne equipment in aircraft flight
Height need to depend on the record in product work to product failure information.Usual FDR system at work, data acquisition equipment to
Product current failure information can also be charged to recording equipment while sending flying quality by recording equipment.After current flight,
Flight resume information can be downloaded by ground-support device, the malfunction in the product course of work can be viewed.But if
Data download when occur without current resume or the incomplete situation of resume, then can because obtain less than fault message, thus be not easy into
Row fault location.
Fault message: the acquisition device period carries out self-test operations, to acquisition device own interfaces module and recording device
Failure acquisition instruction is sent, the fault message of current acquisition device and recording device is obtained.Fault message is arranged, foundation
Corresponding failure position is accommodated in fault message, to corresponding failure position 1 in the presence of a kind of failure, in the absence of failure to corresponding therefore
Hinder position 0.
Summary of the invention
Goal of the invention: the present invention provides a kind of method that can carry out multiple recording and downloading to product important state information,
To avoid under special circumstances because can not obtain product work in status information, to accident analysis positioning belt come it is difficult.
Technical solution:
Acquisition equipment determines when recording equipment falls chain and executes write-protected zone operation, is because when acquisition equipment is set with record
For when communicating normal fault message normally can be charged to recording equipment.And when acquisition equipment and recording equipment communication abnormality, currently
Fault message lacks storage approach, can be by way of write-protected zone, record product current state and time of failure point.
The present invention provides a kind of fault message backup method for fault diagnosis, including acquisition device, and acquisition device is used
It include power module and main control module, power module packet in sending flying quality and fault message, acquisition device to recording device
Power supply supervisory circuit is included, which uses MAX705 chip, and main control module includes microprocessor and FLASH, master control
Module can determine whether the communication of acquisition device and recording device exception occurs；Acquisition device is sent after powering on to recording device
Link setup command, if link setup success, then the acquisition device period to recording device send data, acquisition device one frame data of every transmission
Will reception/recording device response message, each frame data include flying quality and fault message, and recording device is by each frame
Data saved；
1), recording device backs up extremely
When acquisition device does not receive the response message of recording device, then repeat to send multiple data, if still connect
Can not receive the response message of recording device, the main control module of acquisition device determines the communication abnormality of acquisition device and recording device,
FLASH is written into current failure information；
2), acquisition device power-off backup
After acquisition device power-off, power module exports power-off signal to master control by power monitoring chip in acquisition device
Module, at this point, the main control module of acquisition device determines acquisition device power-off, the i.e. communication abnormality of acquisition device and recording device,
The power-off signal is triggered as external interrupt signal and is interrupted by the main control module of acquisition device, by current failure information in interruption
FLASH is written.
The utility model has the advantages that this method increases outside the mode that the original fault message of product routinely records in specific condition
Under, the other storage to product status information.It can be production so that the status information in product work can be read if necessary
Product malfunction elimination provides reliable basis.This method carries out the additional records of product failure information in product important state point, is promoted
It while product reliability, can avoid that record fault message waste software operation resource and memory space is repeated several times.
Detailed description of the invention
Fig. 1 is that protection zone maintenance function of the present invention realizes product structure block diagram；
Fig. 2 is power-fail interrupt signal generating circuit figure of the present invention；
Fig. 3 is that protection zone information area of the present invention divides schematic diagram；
Fig. 4 is write operation operational flow diagram in protection zone of the present invention；
Fig. 5 is attended operation operational flow diagram in protection zone of the present invention；
Specific embodiment
Fig. 1 is that protection zone maintenance function of the present invention realizes product structure block diagram.As shown, a kind of for fault diagnosis
Fault message backup method, including acquisition device, acquisition device are used to send flying quality and fault message to recording device, adopt
Acquisition means include power module and main control module, and power module includes power supply supervisory circuit, which uses
MAX705 chip, main control module include microprocessor and FLASH, and main control module can determine the logical of acquisition device and recording device
Whether letter there is exception；Acquisition device to recording device sends link setup command after powering on, link setup success, then acquisition device period
To recording device send data, acquisition device it is every send a frame data all can reception/recording device response message, each frame number
According to including flying quality and fault message, recording device saves the data of each frame；
1), recording device backs up extremely
When acquisition device does not receive the response message of recording device, then repeat to send multiple data, if still connect
Can not receive the response message of recording device, the main control module of acquisition device determines the communication abnormality of acquisition device and recording device,
FLASH is written into current failure information；
2), acquisition device power-off backup
After acquisition device power-off, power module exports power-off signal to master control by power monitoring chip in acquisition device
Module, at this point, the main control module of acquisition device determines acquisition device power-off, the i.e. communication abnormality of acquisition device and recording device,
The power-off signal is triggered as external interrupt signal and is interrupted by the main control module of acquisition device, by current failure information in interruption
FLASH is written.
Especially, after exporting power-off signal, the voltage threshold of triggering output power-off signal is turned up by feedback resistance, avoids
Because power-supply fluctuation repeats output power-off signal.
Further, fault message successively records in FLASH according to time sequencing.
Further, the method also uses ground-support device, sends dimension to acquisition equipment by ground-support device
Finger shield, which enables, carries out protection zone attended operation, and attended operation includes protection zone erasing, reads current protection zone information and read the past
Protection zone information.
When needing to check protection zone information, protection zone information is sent to acquisition equipment from ground installation and reads instruction, into
Row protection zone information is read, and is checked.
Power supply supervisory circuit is as shown in Fig. 2, using MAX705 as power monitoring chip.One, band auxiliary in MAX705 piece
Comparator has independent non-inverting input terminal (PFI) and output end (PFO), connects a 1.25V's inside reverse input end
Voltage source.When PFI pin voltage is lower than 1.25V, the exportable power-off signal of PFO.The airborne 28V DC power supply of VCC connection, resistance
R1, R2 form resistor voltage divider circuit, by adjusting resistance value, select reasonable intrinsic standoff ratio, defeated when airborne power supply falls to setting value
Power-off signal PFO out.Delay power down time by the storage capacitor of product power end, stops so that power-off signal is exported to product
The write operation of achievable protection zone in the time of work.Feedback resistance R3 is used to improve the trigger voltage threshold value at the end PFO, prevents
When there is on-board voltage fluctuation, the end PFI frequently exports power-off signal.
Protection zone information area divides as shown in Figure 3 in FLASH chip.It is divided into two regions, region one is write for storing
Protection zone operation has executed number, every to execute a write-protected zone operation, which is added 1 and charges to next address in FLASH
Space.After this section of FLASH memory space is write completely, number numerical value will be executed and reset, and wipe the region FLASH.It uses in region two
In storage protection zone information, the information being written each time calculates offset address sequence storage according to number has been executed.Often write full one
A FLASH data block then wipes next data block.After whole region is write completely, first data block, cycle index are wiped.
Fig. 4 is protection zone write operation operational flow diagram.After product powers on, such as acquires equipment and communicated just with recording equipment
Often, then the record of normal data and fault message is carried out.When there is acquisition equipment and recording equipment communication abnormality situation, then hold
The operation of row write protection zone.Pass through protection zone recording exceptional status information.When product power-off, write by the execution of power-fail interrupt signal
Protection zone operation.
Fig. 5 is protection zone attended operation operational flow diagram.Need to execute protection zone maintenance when, from ground installation to acquisition equipment
Maintenance instruction is sent, acquisition equipment is according to the instruction execution corresponding operating read.
Protection zone erasing instruction carries out erasing operation to all spaces in protection zone according to the instruction, empties protection zone information.
Current protection zone instruction is read, to maintain equipment uploads the newest protection zone information once recorded to the ground.According to write-in
Protection zone number and each protection zone information footprint size calculate information offset address to be read, according to for FLASH core
The plot and calculated offset address of piece distribution, read newest primary record information in protection zone.
Protection zone instruction in the past is read, according to the order number that ground-support device is sent, sends a certain item of track record
Protection zone information.Lookup to information, according to number by newest one recursion forward.According to calculated FLASH storage address,
By acquisition equipment, to maintain equipment sends this protection zone information to the ground after execution read operation.
Claims (2)
1. a kind of fault message backup method for fault diagnosis, it is characterised in that: including acquisition device, acquisition device is used for
Flying quality is sent to recording device and fault message, acquisition device include power module and main control module, and power module includes
Power supply supervisory circuit, the power supply supervisory circuit use MAX705 chip, and main control module includes microprocessor and FLASH, master control mould
Block can determine whether the communication of acquisition device and recording device exception occurs；Acquisition device is built after powering on to recording device transmission
Chain order, if link setup success, then the acquisition device period to recording device send data, one frame data of the every transmission of acquisition device are all
Can reception/recording device response message, each frame data include flying quality and fault message, and recording device is by each frame
Data are saved；
In power supply supervisory circuit, one auxiliary comparator of band in MAX705 piece, auxiliary comparator has independent non-inverting input terminal
PFI and output end PFO, the voltage source of one 1.25V of reverse input end inside connection, when PFI pin voltage is lower than 1.25V,
PFO exports power-off signal；The end VCC of auxiliary comparator connects airborne 28V DC power supply, the resistance R1 and resistance of auxiliary comparator
R2 forms resistor voltage divider circuit, by adjusting resistance value, can select reasonable intrinsic standoff ratio, defeated when airborne power supply falls to setting value
Power-off signal PFO out；The feedback resistance R3 of auxiliary comparator is used to improve the trigger voltage threshold value at the end PFO, prevents machine ought occur
The end PFI frequently exports power-off signal when carrying voltage fluctuation；
The method also uses ground-support device, sends maintenance instruction to acquisition equipment by ground-support device and protects
Area's attended operation, attended operation include protection zone erasing, read current protection zone information and read protection zone information in the past；
When need to execute protection zone maintenance, maintenance instruction is sent from ground installation to acquisition equipment, acquisition equipment foundation is read
Instruction execution corresponding operating；
Protection zone erasing instruction carries out erasing operation to all spaces in protection zone according to the instruction, empties protection zone information；
Current protection zone instruction is read, to maintain equipment uploads the newest protection zone information once recorded to the ground；According to write protection
Area's number and each protection zone information footprint size calculate information offset address to be read, divide according to for FLASH chip
The plot and calculated offset address matched read newest primary record information in protection zone；
Protection zone instruction in the past is read, according to the order number that ground-support device is sent, sends a certain item protection of track record
Area's information；Lookup to information, according to number by newest one recursion forward；According to calculated FLASH storage address, execute
By acquisition equipment, to maintain equipment sends this protection zone information to the ground after read operation；
1), recording device backs up extremely
It when acquisition device does not receive the response message of recording device, then repeats to send multiple data, if still received not
To the response message of recording device, the main control module of acquisition device determines the communication abnormality of acquisition device and recording device, will work as
FLASH is written in prior fault information；
2), acquisition device power-off backup
After acquisition device power-off, power module exports power-off signal to master control mould by power monitoring chip in acquisition device
Block, at this point, main control module determines acquisition device power-off, i.e., the communication abnormality of acquisition device and recording device, main control module should
Power-off signal is triggered as external interrupt signal and is interrupted, and FLASH is written in current failure information in interruption.
2. fault message backup method according to claim 1, it is characterised in that: fault message in FLASH according to when
Between sequence successively record.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510515432.0A CN106468911B (en) | 2015-08-20 | 2015-08-20 | A kind of fault message backup method for fault diagnosis |
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| CN201510515432.0A CN106468911B (en) | 2015-08-20 | 2015-08-20 | A kind of fault message backup method for fault diagnosis |
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| CN106468911A CN106468911A (en) | 2017-03-01 |
| CN106468911B true CN106468911B (en) | 2019-06-28 |
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| CN112087703A (en) * | 2020-08-14 | 2020-12-15 | 陕西千山航空电子有限责任公司 | Audio acquisition fault diagnosis method for audio monitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629002U (en) * | 2009-11-16 | 2010-11-10 | 北京中海锦安高科技有限公司 | Intelligent fire-fighting black box with integration of information, networks and digits |
| CN203118062U (en) * | 2013-02-27 | 2013-08-07 | 陕西千山航空电子有限责任公司 | Recorder capable of being read rapidly |
| CN103536287A (en) * | 2012-07-11 | 2014-01-29 | 上海联影医疗科技有限公司 | System and method for remote monitoring and maintaining of medical imaging equipment |
| CN104702656A (en) * | 2014-06-09 | 2015-06-10 | 贵州贵航飞机设计研究所 | Method for duplicating flight data of unmanned aerial vehicles by aid of cloud storage technologies |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6112140A (en) * | 1996-05-14 | 2000-08-29 | The Boeing Company | Flight management system providing for automatic control display unit backup utilizing structured data routing |
| CN1417980A (en) * | 2002-11-07 | 2003-05-14 | 吕京建 | Intelligent gateway device for vehicle controller LAN |
| RU2488775C1 (en) * | 2011-12-30 | 2013-07-27 | Открытое Акционерное Общество "Авиационная Холдинговая Компания "Сухой" | Multi-task aircraft integrated onboard hardware complex |
| CN102968484A (en) * | 2012-11-23 | 2013-03-13 | 中国航空工业集团公司第六三一研究所 | Flying data analyzing method for general-purpose plane |
| CN103440211B (en) * | 2013-07-28 | 2016-04-20 | 浙江大学 | Unmanned plane during flying datalogger and detection of power loss and RAM data guard method |
-
2015
- 2015-08-20 CN CN201510515432.0A patent/CN106468911B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629002U (en) * | 2009-11-16 | 2010-11-10 | 北京中海锦安高科技有限公司 | Intelligent fire-fighting black box with integration of information, networks and digits |
| CN103536287A (en) * | 2012-07-11 | 2014-01-29 | 上海联影医疗科技有限公司 | System and method for remote monitoring and maintaining of medical imaging equipment |
| CN203118062U (en) * | 2013-02-27 | 2013-08-07 | 陕西千山航空电子有限责任公司 | Recorder capable of being read rapidly |
| CN104702656A (en) * | 2014-06-09 | 2015-06-10 | 贵州贵航飞机设计研究所 | Method for duplicating flight data of unmanned aerial vehicles by aid of cloud storage technologies |
Non-Patent Citations (1)
| Title |
|---|
| 飞控系统实时数据记录器的设计实现;徐智 等;《直升机技术》;20131231(第3期);第65-67页 |
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