CN208188901U - Aircraft data recording equipment - Google Patents
Aircraft data recording equipment Download PDFInfo
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- CN208188901U CN208188901U CN201820419355.8U CN201820419355U CN208188901U CN 208188901 U CN208188901 U CN 208188901U CN 201820419355 U CN201820419355 U CN 201820419355U CN 208188901 U CN208188901 U CN 208188901U
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Abstract
The utility model provides a kind of aircraft data recording equipment, it include: processor, and first memory connected to the processor, the second memory with log file system, the navigation chip for receiving satellite-signal and the data processing chip for handling airborne bus data respectively；Processor is used to generate the motion state data of aircraft according to satellite-signal and treated airborne-bus data；First memory and second memory are used to save motion state data.I.e. the aircraft data recording equipment of the utility model uses double copies, can be to avoid loss of data caused by external cause.Meanwhile second memory uses log file system, loss of data caused by power down can be effectively prevented, and then improve the memory reliability of the motion state data of aircraft.Simultaneously by setting logic circuit conversion chip, the accurate playback of data is realized.
Description
Technical field
The utility model relates to aircraft data recording technique more particularly to a kind of aircraft data recording equipments.
Background technique
In aircraft field, the motion state data of aircraft is for the control of aircraft, analysis, research, evaluation and dimension
Protector has important directive significance.Such as the motion state datas such as common aircraft's flight track, speed and posture, these data are not
But can be used to analyze aircraft to take a flight test the indexs such as function, performance and reliability in stage, can also for aircraft flight quality therefore
Hinder the fields such as maintenance, air-accident investigation and foundation is provided.
Existing aircraft data recording equipment only can the motion state data to aircraft carry out single record and deposit
Storage, but it is unable to ensure the reliability of data record, often by extraneous complicated and diversified dry in aircraft motion process
Factor, such as lightning, electromagnetic radiation are disturbed, the data of record is made to there is the possibility partly or entirely lost.Along with data record
The unreliability of one store function of tables of equipment, such as power down failure often will lead to the critical data loss of record, in this way to winged
Motion analysis, breakdown maintenance, the air-accident investigation of row device cause many inconvenience.
Utility model content
The utility model provides a kind of aircraft data recording equipment, to solve existing aircraft data record reliability
The problem of difference.
The utility model provides a kind of aircraft data recording equipment, comprising: processor, and respectively with the processor
The first memory of connection, the second memory with log file system, the navigation chip for receiving satellite-signal and use
In the data processing chip for handling airborne bus data；
The processor is used to generate the movement of aircraft according to the satellite-signal and treated airborne-bus data
Status data；
The first memory and the second memory are used to save the motion state data.
In a kind of possible implementation of the present embodiment, the reading data priority of the second memory is higher than institute
The reading data priority for stating first memory, when can not read the motion state data from the second memory, from
It is read in the first memory.
In the alternatively possible implementation of the present embodiment, the aircraft data recording equipment further includes and institute
State the logic circuit conversion chip of processor connection；
The processor, is also used to receive the reading instruction of user's input, and reading instruction is sent to the logic
Circuit conversion chip；
The logic circuit conversion chip, for being converted to the motion state data according to reading instruction,
And the motion state data after conversion is exported according to target output frequency into external user equipment, the target output frequency
Rate is consistent with the original record frequency of the motion state data.
In the alternatively possible implementation of the present embodiment, the logic circuit conversion chip is transistor-crystal
Pipe logic level TTL-422 chip；
The TTL-422 chip converts the motion state data of TTL format for being instructed according to the reading
For 422 bus datas, and 422 bus data is exported to the use by 422 buses according to target output frequency by described
Family equipment.
In the alternatively possible implementation of the present embodiment, the aircraft data recording equipment further includes random
Memory RAM is accessed, the motion state data generated for caching the processor；
The processor be used to save the motion state data cached in the RAM to the first memory and
The second memory.
In the alternatively possible implementation of the present embodiment, the second memory using custom file format into
Row storage.
In the alternatively possible implementation of the present embodiment, the first memory is synchronous serial Peripheral Interface
QSPI memory and/or the second memory are iNAND memory.
In the alternatively possible implementation of the present embodiment, the navigation chip is global navigation satellite system GNSS
Board.
In the alternatively possible implementation of the present embodiment, the data processing chip is digital carrier system
ARINC429 chip.
In the alternatively possible implementation of the present embodiment, the aircraft data recording equipment further includes and institute
State the general-purpose serial bus USB module of processor connection.
The advantageous effects of aircraft data recording equipment provided by the utility model:
By device handler, and be connected to the processor respectively first memory, have log file system
Second memory, the navigation chip for receiving satellite-signal, the data processing chip for handling airborne bus data；Its
In, the processor is used to generate the motion state of aircraft according to the satellite-signal and treated airborne-bus data
Data；The first memory and the second memory are for saving the motion state data.That is the flight of the present embodiment
Device data recording equipment uses double copies, can be to avoid loss of data caused by external cause.Meanwhile second memory uses day
Loss of data caused by power down can be effectively prevented in will file system, and then the motion state data for improving aircraft is deposited
Store up reliability.Further, also by the way that logic circuit conversion chip connected to the processor, the logic circuit conversion chip is arranged
For being instructed according to the reading of processor received user input, motion state data is converted, and by the fortune after conversion
Status data is moved according to the original record rate-adaptive pacemaker of motion state data into external user equipment, and then realizes movement shape
The accurate playback of state data.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the aircraft data recording equipment that the utility model embodiment one provides；
Fig. 2 is the application system figure of aircraft data recording equipment shown in the present embodiment one；
Fig. 3 is the structural schematic diagram for the aircraft data recording equipment that the utility model embodiment two provides；
Fig. 4 is the application system figure of aircraft data recording equipment shown in Fig. 3.
Description of symbols:
100: aircraft data recording equipment；
110: processor；
120: first memory；
130: second memory；
140: navigation chip；
150: data processing chip；
160: logic circuit conversion chip；
170:RAM；
180:USB module；
200: user equipment；
300:ARINC429 bus apparatus；
400: storage equipment.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with the present embodiment
In attached drawing, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described implementation
Example is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without creative efforts, belongs to the utility model
The range of protection.
Aircraft data recording equipment provided by the utility model is suitable for aircraft, such as suitable for civil aircraft, army
It is winged for recording the movement state information of aircraft, such as recording with any type of aircraft such as aircraft and unmanned plane
The data such as track, speed and the posture of row device.
Existing aircraft data recording equipment only can the motion state data to aircraft carry out single record and deposit
Storage, but it is unable to ensure the reliability of data record, for example, when aircraft is by extraneous complicated and diversified disturbing factor, easily
Some or all of data record is caused to lose.Alternatively, loss of data caused by power down, in this way to the motion analysis of aircraft,
Breakdown maintenance, air-accident investigation cause many inconvenience.
In order to solve the above-mentioned technical problem, the aircraft data recording equipment of the present embodiment, by the way that first memory is arranged
The motion state data of aircraft is stored with second memory, it can be to avoid loss of data caused by extraneous complicated factor.Together
When, log file system is set in second memory, file system corruption caused by can preventing because of unexpected power down, Jin Erti
The high memory reliability of data, ensure that the smooth of the events such as motion analysis, breakdown maintenance, the air-accident investigation of aircraft
It carries out.
The technical solution of the utility model is described in detail with specifically embodiment below.These are specific below
Embodiment can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the structural schematic diagram for the aircraft data recording equipment that the utility model embodiment one provides, and Fig. 2 is this reality
Apply the application system figure of aircraft data recording equipment shown in example one.
As shown in Figure 1, the aircraft data recording equipment 100 of the present embodiment include processor 110, and respectively with it is described
Processor 110 connect first memory 120, the second memory 130 with log file system, for receiving satellite-signal
Navigation chip 140 and data processing chip 150 for handling airborne bus data.
The processor 110 is used to generate aircraft according to the satellite-signal and treated airborne-bus data
Motion state data.
The first memory 120 and the second memory 130 are used to save the motion state data.
Specifically, as shown in Figure 1, the aircraft data recording equipment 100 of the present embodiment is deposited including processor 110, first
Reservoir 120, second memory 130, navigation chip 140 and data processing chip 150, wherein first memory 120, second stores
Device 130, navigation chip 140 and data processing chip 150 are electrically connected with processor 110.
Wherein, navigation chip 140 is used to receive the satellite-signal of satellite navigation system transmission, such as receives GPS (Global
Positioning System, global positioning system) satellite-signal that sends of satellite, or receive the satellite navigations such as big-dipper satellite
The satellite-signal that system is sent.Meanwhile the satellite-signal received being input in processor 110.
Data processing chip 150 with the airborne-bus of aircraft for connecting, to the airborne-bus data on airborne-bus
It is handled, and airborne-bus data are input to processor 110 by treated.
That treated is airborne for the satellite-signal and data processing chip 150 that processor 110 is used to send navigation chip 140
Bus data is handled, and the motion state data of aircraft is generated, the motion state data may include aircraft track,
The data such as speed and posture.
Then, processor 110 is saved the motion state data of generation to first memory 120 and second memory
In 130.
In the present embodiment, 130 usage log file system of second memory can prevent aircraft data recording equipment
100 cause the damage of file system in unexpected power down, and then improve the preservation reliability of the motion state data of aircraft.
The aircraft data recording equipment 100 of the present embodiment generates a record file after being switched on and position every time to save
Motion state data, if 130 capacity of second memory will exhaust, it is empty to vacate storage to delete earliest record data
Between.
Further, the accidental damage of second memory 130 in order to prevent, causes the loss of data, then is arranged first and deposits
The preservation of the synchronous motion state data for carrying out aircraft of reservoir 120 can not be read at this time when second memory 130 goes wrong
Access according to when, the motion state data of aircraft can be read from first memory 120.I.e. the present embodiment uses double copies,
When a memory damages, data can be read from another memory, further increase the motion state number of aircraft
According to preservation reliability, and then ensure that the motion analysis of the aircraft based on motion state data, breakdown maintenance, aircraft accident
The orderly progress of the work such as investigation.
Optionally, the first memory 120 of the present embodiment can be stored using custom file format, to realize use
The data file storage that family customizes.
Optionally, in order to further improve the reliability of data preservation, then the first memory 120 of the present embodiment can also
To be stored using log file system, aircraft data recording equipment 100 can be prevented with second memory 130 together
The damage of file system is caused in unexpected power down.
In a kind of possible implementation of the present embodiment, the reading data priority of second memory 130 is higher than institute
State first memory 120.
Specifically, when first memory 120 and second memory 130 work normally, when needing to read aircraft
When motion state data, processor 110 sends data read request to second memory 130 first, from second memory 130
Read the motion state data of aircraft.Then, the data read request based on the received of second memory 130, by the fortune of preservation
Dynamic status data is sent to processor 110, so that processor 110 is sent to external equipment.At this point, processor 110 is not from first
Motion state data is read in memory 120, first memory 120 remains unchanged.
And when second memory 130 damages, processor 110 can not read motion state from second memory 130
When data, processor 110 just sends data read request to first memory 120, reads aircraft from first memory 120
Motion state data.Then, the data read request based on the received of first memory 120, by the motion state data of preservation
It is sent to processor 110, so that processor 110 is sent to external equipment.
The first memory 120 of the present embodiment, minimum memory unit are a sector (sector), aircraft data record
After equipment 100 is switched on every time and completes positioning, finds empty sector and start to save the motion state data of aircraft, and adopt
Accumulated mode is taken to carry out more new data.
Optionally, the first memory of the present embodiment and second memory can be also used for saving original satellite-signal and
Original airborne-bus data.
In a kind of example, the second memory 130 of the present embodiment can be iNAND memory, which is
The storage chip of SanDisk (dodging enlightening) company research and development.
The iNAND memory of the present embodiment uses log file system, can prevent loss of data caused by power down, together
When, the iNAND memory of the present embodiment can reduce the workload of SOC (System on Chip, system level chip), save
The resource of SOC.
Optionally, also built-in Cache (cache memory) module of the iNAND memory of the present embodiment, if to deposit
Storage be less than 4K low capacity file when, Cache module can help user by speed improve to MLC (Multi-Level Cell,
Multilevel-cell) 10 times or so of flash memory, and Cache module does not need user's control, when storing low capacity file, Cache from
Dynamic starting, it is very convenient.
Optionally, the iNAND of the present embodiment, which can also simulate built-in MLC flash, becomes SLC (Single-Level
Multi-Level Cell, single layer cell) flash memory, make iNAND that there is the read or write speed and its performance of SLC Flash, to improve
Read or write speed.
In another example, the first memory 120 of the present embodiment can be QSPI (Queued Serial
Peripheral Interface, synchronous serial Peripheral Interface) memory.
Optionally, the QSPI memory, user can disposably transmit the transmission comprising up to 16 8 or 16 data
Queue.Once transmission start does not all need the intervention of processor 110, greatly improves efficiency of transmission until the end of transmission.
Optionally, the QSPI memory of the present embodiment is stored using custom file format, to realize that user customizes
The data file of change stores.
Optionally, the navigation chip 140 of the present embodiment can be global navigation satellite system GNSS (Global
Navigation Satellite System, Global Navigation Satellite System) board.
The GNSS board uses double antenna port, and high-precision direction finding and positioning function can be achieved at the same time.The setting of GNSS board
There is high accuracy gyroscope, allow receiver in satellite losing lock, reliable course data is persistently provided.Optionally, the GNSS
Board also supports course, pitching, the measurement of roll angle simultaneously.Its size is small, and cost performance is high.
The data processing chip 150 of the present embodiment is digital carrier system ARINC429 chip, wherein ARINC429
Specification is formulated by the US Airways electronic engineering committee, it is specified that avionic device and in relation to the digital information transmission between system
It is required that.ARINC429 specification full name is " digital carrier system " (Digital Information Transfer
System, DITS).
As shown in Fig. 2, the ARINC429 chip of the present embodiment is connect with external ARINC429 bus apparatus 300, wherein
ARINC429 bus is a kind of sata standard, is the One-to-All Broadcast formula transfer bus towards interface type.ARINC429 chip will
ARINC429 data on ARINC429 bus apparatus 300 are converted to the manageable data format of processor 110.
Aircraft data recording equipment provided in this embodiment, by device handler, and respectively with the processor
The first memory of connection, the navigation chip for receiving satellite-signal, is used for the second memory with log file system
Handle the data processing chip of airborne bus data；Wherein, the processor is used for according to the satellite-signal and treated
Airborne-bus data generate the motion state data of aircraft；The first memory and the second memory are for saving
The motion state data.I.e. the aircraft data recording equipment of the present embodiment uses double copies, can to avoid it is extraneous complicated because
Loss of data caused by element.Meanwhile second memory uses log file system, and data caused by power down can be effectively prevented and lose
It loses, and then improves the memory reliability of the motion state data of aircraft.
Fig. 3 is the structural schematic diagram for the aircraft data recording equipment that the utility model embodiment two provides,
Fig. 4 is the application system figure of aircraft data recording equipment shown in Fig. 3.
On the basis of the above embodiments, as shown in figure 3, the aircraft data recording equipment 100 of the present embodiment, further includes
The logic circuit conversion chip 160 being connect with the processor 110；The processor 110 is also used to receive the reading of user's input
Reading instruction is sent to the logic circuit conversion chip 160 by instruction fetch；The logic circuit conversion chip 160 is used
It instructs, the motion state data is converted, and by the motion state data after conversion according to mesh according to the reading
Mark output frequency is exported into external user equipment 200, wherein the target output frequency and the motion state data
Original record frequency is consistent.
Existing aircraft data record is only the simple record to data, does not have and plays back function to the reprocessing of data
Can, need professional to reprocess by Correlative data analysis software, just the reproduction of available motion state.This mistake
Journey generally requires to expend a large amount of manpower and professional equipment resource, can not quickly realize to the motion state data of aircraft
Quickly reduction playback function, is not easy to carry out the Flight Condition Data of aircraft the tune of quick assay and failure accident
It checks the mark analysis.Therefore, the quick reduction of reliable aircraft data record and quick aircraft motion state data how is realized
Playback is particularly important.
In order to solve the above-mentioned technical problem, the present embodiment is arranged between processor 110 and the user equipment 200 of outside and patrols
Circuit conversion chip 160 is collected, which not only can carry out format to the motion state data of storage and turn
It changes, is converted into the identifiable format of user equipment 200.Meanwhile the logic circuit conversion chip 160 can also be exported according to target
Frequency (i.e. the original record frequency of motion state data) exports the motion state data after conversion to user equipment 200, into
And realize the accurate playback of motion state data.
Optionally, logic circuit conversion chip 160 is TTL (Transistor-Transistor Logic, transistor-crystalline substance
Body pipe logic level) -422 chips, the TTL-422 chip, for the motion state data of TTL format to be converted to 422 buses
Data, and exported 422 bus datas to user equipment 200 by 422 buses according to target output frequency.
In actual use, user equipment 200 sends data read request, flight to aircraft data recording equipment 100
Whether processor 110 in device data recording equipment 100 judges second memory 130 when receiving the data read request
It works normally, if so, the motion state data of aircraft is read from second memory 130, at this point, if second memory
130 when damaging, and the motion state data of aircraft can be read from first memory 120.Then, processor 110 will
The motion state data of reading is sent to TTL-422 chip, and the motion state data of TTL format is converted by TTL-422 chip
422 bus datas.Then, 422 bus datas are exported to user equipment 200 according to target output frequency by 422 buses
On, and then realize accurate playback of the motion state data of aircraft on user equipment 200, facilitate user to restore aircraft
Original motion trajectory.
With continued reference to shown in Fig. 3, the aircraft data recording equipment 100 of the present embodiment can also include random access memory
Device RAM170, the RAM170 are used to cache the motion state data that the processor 110 generates；
The processor 110 is deposited for saving the motion state data cached in the RAM170 to described first
In reservoir 120 and the second memory 130.
Specifically, after processor 110 is handled according to the received satellite-signal of navigation chip 140 and data processing chip 150
Airborne-bus data, generate the motion state data of aircraft, and the motion state data of generation is cached in RAM170.
Then, processor 110 controls first memory 120 and second memory 130 reads the motion state number of caching from RAM170
According to.
Optionally, in the present embodiment, the motion state data that processor 110 can also will cache in RAM170, by patrolling
After collecting the conversion of circuit conversion chip 160, played back on user equipment 200 by 422 bus synchronous.
Optionally, the RAM170 of the present embodiment can for SRAM (Static Random Access Memory, it is static with
Machine accesses memory).
With continued reference to shown in Fig. 3, the aircraft data recording equipment 100 of the present embodiment further includes connecting with processor 110
USB (Universal Serial Bus, universal serial bus) module 180.
In this way, as shown in figure 4, when user needs to export data, user can be by USB module 180 by motion state
Data copy is to storage equipment 400, such as in USB flash disk.
Specifically, processor 110 reads the motion state data in second memory 130 first, if it find that movement shape
State data file damage, then motion state data is read from first memory 120, and generate file (such as generate compression text
Part), then copy in storage equipment 400.
Optionally, the aircraft data recording equipment 100 of the present embodiment can also include that wireless communication module (does not show in figure
Out), such as bluetooth module, WIFI (WIreless-Fidelity, Wireless Fidelity) module etc., in this way, the motion state of aircraft
Data can be wirelessly transferred by wireless communication module, be transferred to external equipment.
Optionally, the navigation chip 140 of the present embodiment is also connect with user equipment 200, is obtained from navigation chip 140
PPS (Pulses Per Second) pulse/sec signal.
Aircraft data recording equipment provided in this embodiment converts core by the way that logic circuit connected to the processor is arranged
Piece, the logic circuit conversion chip is for converting the motion state data, and by the motion state data after conversion
According to original record rate-adaptive pacemaker into external user equipment, and then realize the accurate playback of motion state data.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of aircraft data recording equipment characterized by comprising processor, and be connected to the processor respectively
First memory, the second memory with log file system, the navigation chip for receiving satellite-signal and for locating
Manage the data processing chip of airborne-bus data；
The processor is used to generate the motion state of aircraft according to the satellite-signal and treated airborne-bus data
Data；
The first memory and the second memory are used to save the motion state data.
2. aircraft data recording equipment according to claim 1, which is characterized in that the data of the second memory are read
Priority is taken to be higher than the reading data priority of the first memory.
3. aircraft data recording equipment according to claim 1, which is characterized in that further include being connected to the processor
Logic circuit conversion chip；
The processor, is also used to receive the reading instruction of user's input, and reading instruction is sent to the logic circuit
Conversion chip；
The logic circuit conversion chip is converted the motion state data, and will for being instructed according to the reading
Motion state data after conversion is exported according to target output frequency into external user equipment, the target output frequency with
The original record frequency of the motion state data is consistent.
4. aircraft data recording equipment according to claim 3, which is characterized in that the logic circuit conversion chip is
Transistor-transistor logic level TTL-422 chip；
The motion state data of TTL format is converted to 422 for instructing according to the reading by the TTL-422 chip
Bus data, and 422 bus data is exported to the user by 422 buses according to the target output frequency and is set
It is standby.
5. aircraft data recording equipment according to claim 1, which is characterized in that further include random access memory
RAM, the motion state data generated for caching the processor；
The processor is used to save the motion state data cached in the RAM to the first memory and described
Second memory.
6. aircraft data recording equipment according to claim 1, which is characterized in that the second memory is used and made by oneself
Adopted file format is stored.
7. aircraft data recording equipment according to claim 1, which is characterized in that the first memory is synchronous string
Row Peripheral Interface QSPI memory and/or the second memory are iNAND memory.
8. aircraft data recording equipment according to claim 1, which is characterized in that the navigation chip is worldwide navigation
Satellite system GNSS board.
9. aircraft data recording equipment according to claim 1, which is characterized in that the data processing chip is number
Information transmission system ARINC429 chip.
10. aircraft data recording equipment according to claim 1, which is characterized in that further include connecting with the processor
The general-purpose serial bus USB module connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820419355.8U CN208188901U (en) | 2018-03-27 | 2018-03-27 | Aircraft data recording equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820419355.8U CN208188901U (en) | 2018-03-27 | 2018-03-27 | Aircraft data recording equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208188901U true CN208188901U (en) | 2018-12-04 |
Family
ID=64439159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820419355.8U Active CN208188901U (en) | 2018-03-27 | 2018-03-27 | Aircraft data recording equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208188901U (en) |
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2018
- 2018-03-27 CN CN201820419355.8U patent/CN208188901U/en active Active
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