CN107704210A - Mutually isolated acquisition and memory system between a kind of multichannel data - Google Patents
Mutually isolated acquisition and memory system between a kind of multichannel data Download PDFInfo
- Publication number
- CN107704210A CN107704210A CN201711023705.5A CN201711023705A CN107704210A CN 107704210 A CN107704210 A CN 107704210A CN 201711023705 A CN201711023705 A CN 201711023705A CN 107704210 A CN107704210 A CN 107704210A
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- China
- Prior art keywords
- electric capacity
- iso122p
- pin
- mutually isolated
- memory system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses acquisition and memory system mutually isolated between a kind of multichannel data, including signal isolation module, signal to follow conditioning module, analog-digital converter, fpga logic controller, RS422 decoder modules, optocoupler input module, RS422 receivers, RS422 transmitters, FLASH memory modules and USB interface；Wherein, signal isolation module, signal follow conditioning module, analog-digital converter, fpga logic controller to be linked in sequence successively, and RS422 decoder modules, optocoupler input module, RS422 receivers, RS422 transmitters, FLASH memory modules, USB interface are connected with fpga logic controller respectively.The present invention meets aircraft telemetry Large Copacity, the real-time storage of high-speed, ensures the reliable recovery of data.
Description
Technical field
The present invention relates to aircraft telemetry field, mutually isolated collection storage system between particularly a kind of multichannel data
System.
Background technology
In spaceflight TT＆C system, the test of telemetry parameter is for verifying the design parameter of aircraft, judging in experiment
Failure etc. is significant.Tracking measurement, telemetry and telecommand system are the essential parts of whole TT＆C system.Electronic measurement and control system
System advantage is can be to the round-the-clock tracking of spacecraft, and has preferable flexibility and enough precision.From the angle of system engineering
From the point of view of degree, to the data obtained by spacecraft tracking measurement, by calculating, trajectory, track or the information of position can be provided；And remote measurement
The data provided, the status information of spacecraft can be provided by handling, analyzing；They are all the important of backfeed loop in system
Information source.Remote control is then the executing agency in control system.
Electronic surveying and the above ground portion of control system, it is necessary to could be complete with being engaged mounted in spaceborne electronic equipment
Into TT＆C task.For measurement, must there are corresponding Radio Beacon or answering machine on spacecraft, they beam back Deep space tracking and tested the speed
Radiofrequency signal, answering machine also beam back ranging information.There must be the sensor of detection various parameters for remote measurement, on spacecraft
With the radio frequency sending set for sending these parameters.For remote control, there must be command receiver on spacecraft.Therefore, it is spaceborne
It should combine unified consideration in design with two parts electronic equipment on ground.
When aircraft performs task, sensor and imaging device can produce substantial amounts of remote measurement and view data, it is necessary to pass through
Real-time memory system completes the storage of data, meets the needs of aircraft data recovery.Compared with wireless data returns technology, number
There is the advantages such as good confidentiality, the bit error rate are low, data band is roomy, cost is cheap according to real-time memory system, be aircraft remote measurement neck
The key technology in domain.
With the development of aircraft telemetry, required collection storage data class is increasing, data volume increasingly
Greatly, data storage rate is also improved therewith, and higher requirement is proposed to aircraft data real-time storage technology.Traditional data is real
When storage system in, data directly do not carry out data by parallel bus transfers to data storage device, data wire and data wire
It is synchronous, and as the gradual increase of memory capacity, the data storage bit error rate also steeply rise, aircraft telemetry system can not be met
The demand of proposition.And may be interfered between the signal that receives of storage system, the interference effect that digital-to-analogue is brought altogether arrives
Transmission quality, when transmission fault occurs for certain road signal, hardware may be had undesirable effect other circuits, storage system
Can be also unstable reliable.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art and provided between a kind of multichannel data mutually
The acquisition and memory system of isolation, the present invention meet aircraft telemetry Large Copacity, the real-time storage of high-speed, ensure data
Reliable recovery.
The present invention uses following technical scheme to solve above-mentioned technical problem：
According to acquisition and memory system mutually isolated between a kind of multichannel data proposed by the present invention, including signal isolation module, letter
Conditioning module, analog-digital converter, fpga logic controller, RS422 decoder modules, optocoupler input module, RS422 number is followed to receive
Device, RS422 transmitters, FLASH memory modules and USB interface；Wherein, signal isolation module, signal follow conditioning module, modulus
Converter, fpga logic controller are linked in sequence successively, RS422 decoder modules, optocoupler input module, RS422 receivers,
RS422 transmitters, FLASH memory modules, USB interface are connected with fpga logic controller respectively；Wherein,
Signal isolation module includes anti thunder strike circuit, stagnant ring comparison circuit and the isolation circuit being linked in sequence successively, the isolation
Circuit includes ISO122P isolating chips and the first electric capacity to the 4th electric capacity, wherein, the 1st pin of ISO122P isolating chips and the
One end connection of one electric capacity, the other end of the first electric capacity are connected with the 16th pin of ISO122P isolating chips, ISO122P isolation
2nd pin of chip is connected with one end of the second electric capacity, the other end of the second electric capacity and the 16th pin of ISO122P isolating chips
Connection, the 9th pin of ISO122P isolating chips is connected with one end of the 3rd electric capacity, the other end and ISO122P of the 3rd electric capacity every
The 8th pin connection of off-chip piece, the 10th pin of ISO122P isolating chips are connected with one end of the 4th electric capacity, the 4th electric capacity
The other end is connected with the 8th pin of ISO122P isolating chips.
As the further prioritization scheme of acquisition and memory system mutually isolated between a kind of multichannel data of the present invention, institute
Stating anti thunder strike circuit includes first to 3rd resistor, electric capacity, the first diode and the second diode, one end of first resistor and the
One end connection of two resistance, the other end of second resistance and ground, one end of 3rd resistor, one end of electric capacity, the first diode
Positive pole, the negative pole of the second diode connect respectively, the other end of first resistor and the other end of 3rd resistor, electric capacity it is another
End, the negative pole of the first diode, the anode of the second diode connect respectively.
As the further prioritization scheme of acquisition and memory system mutually isolated between a kind of multichannel data of the present invention,
FLASH memory modules are FLASH arrays.
As the further prioritization scheme of acquisition and memory system mutually isolated between a kind of multichannel data of the present invention,
FLASH arrays include multiple FLASH chips.
As the further prioritization scheme of acquisition and memory system mutually isolated between a kind of multichannel data of the present invention, mould
The model ADS8365 of number converter.
The present invention compared with prior art, has following technique effect using above technical scheme：
（1）The present invention uses the full isolation technology of signal, to avoid the interference effect that digital-to-analogue is brought altogether to transmission quality, to ensure
When being independent of each other between each signal, while avoiding certain road signal generation transmission fault, to hardware, other circuits have undesirable effect；
（2）Anti-lightning design is employed, the lightning strike signals of upper kilovolt can be played a protective role, makes the sensor signal of overvoltage not
Circuit can be damaged；
（3）The present invention meets aircraft telemetry Large Copacity, the real-time storage of high-speed, ensures the reliable recovery of data, carries
Supply anti-lightning, except noise jamming, isolation etc. act on, substantially increase the security of engine control system.
Brief description of the drawings
Fig. 1 is the schematic diagram of present system.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, acquisition and memory system mutually isolated between a kind of multichannel data, it is characterised in that including signal isolation mould
Block, signal follow conditioning module, analog-digital converter, fpga logic controller, RS422 decoder modules, optocoupler input module,
RS422 receivers, RS422 transmitters, FLASH memory modules and USB interface；Wherein, signal isolation module, signal follow conditioning
Module, analog-digital converter, fpga logic controller are linked in sequence successively, and RS422 decoder modules, optocoupler input module, RS422 connect
Device, RS422 transmitters, FLASH memory modules, USB interface is received to be connected with fpga logic controller respectively；Wherein,
Signal isolation module includes anti thunder strike circuit, stagnant ring comparison circuit and the isolation circuit being linked in sequence successively, the isolation
Circuit includes ISO122P isolating chips and the first electric capacity to the 4th electric capacity, wherein, the 1st pin of ISO122P isolating chips and the
One end connection of one electric capacity, the other end of the first electric capacity are connected with the 16th pin of ISO122P isolating chips, ISO122P isolation
2nd pin of chip is connected with one end of the second electric capacity, the other end of the second electric capacity and the 16th pin of ISO122P isolating chips
Connection, the 9th pin of ISO122P isolating chips is connected with one end of the 3rd electric capacity, the other end and ISO122P of the 3rd electric capacity every
The 8th pin connection of off-chip piece, the 10th pin of ISO122P isolating chips are connected with one end of the 4th electric capacity, the 4th electric capacity
The other end is connected with the 8th pin of ISO122P isolating chips.
RS422 receivers are used to export the order of reception to fpga logic controller to be parsed, and start when receiving
During record order, RS422 decoder modules start to receive pcm stream, until storage system is de-energized.When judging optocoupler input module
When the signal that takes off received is effective, signal isolation module starts to gather and follows conditioning module, analog-digital converter, FPGA through signal
The analog quantity of multichannel input is stored after logic controller to FLASH memory modules.It is mutually isolated between multi-analog, analog quantity
Also it is mutually isolated with pcm stream.After the completion of record, fpga logic controller is reached the data of reception by RS422 transmitters
Surface-monitoring equipment carries out ex-post analysis；The data stored in FLASH memory modules can be transmitted by USB interface.
The anti thunder strike circuit includes first to 3rd resistor, electric capacity, the first diode and the second diode, first resistor
One end and one end of second resistance connect, the other end of second resistance and ground, one end of 3rd resistor, one end of electric capacity, the
The positive pole of one diode, the negative pole of the second diode connect respectively, the other end of first resistor and the other end of 3rd resistor, electricity
The other end of appearance, the negative pole of the first diode, the anode of the second diode connect respectively.
FLASH memory modules are FLASH arrays；FLASH arrays include multiple FLASH chips.The model of analog-digital converter
For ADS8365.
The present invention uses the full isolation technology of signal, to avoid the interference effect that digital-to-analogue is brought altogether to transmission quality, to protect
When demonstrate,proving and be independent of each other between each signal, while avoiding certain road signal transmission fault occurs, to hardware, other circuits cause bad shadow
Ring；Anti-lightning design is employed, the lightning strike signals of upper kilovolt can be played a protective role, makes the sensor signal of overvoltage will not damage
Bad circuit；The present invention meets aircraft telemetry Large Copacity, the real-time storage of high-speed, ensures the reliable recovery of data, carries
Supply anti-lightning, except noise jamming, isolation etc. act on, substantially increase the security of engine control system.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deductions can also be made or substituted, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
- A kind of 1. mutually isolated acquisition and memory system between multichannel data, it is characterised in that including signal isolation module, signal with With conditioning module, analog-digital converter, fpga logic controller, RS422 decoder modules, optocoupler input module, RS422 receivers, RS422 transmitters, FLASH memory modules and USB interface；Wherein, signal isolation module, signal follow conditioning module, modulus to turn Parallel operation, fpga logic controller are linked in sequence successively, RS422 decoder modules, optocoupler input module, RS422 receivers, RS422 Transmitter, FLASH memory modules, USB interface are connected with fpga logic controller respectively；Wherein,Signal isolation module includes anti thunder strike circuit, stagnant ring comparison circuit and the isolation circuit being linked in sequence successively, the isolation Circuit includes ISO122P isolating chips and the first electric capacity to the 4th electric capacity, wherein, the 1st pin of ISO122P isolating chips and the One end connection of one electric capacity, the other end of the first electric capacity are connected with the 16th pin of ISO122P isolating chips, ISO122P isolation 2nd pin of chip is connected with one end of the second electric capacity, the other end of the second electric capacity and the 16th pin of ISO122P isolating chips Connection, the 9th pin of ISO122P isolating chips is connected with one end of the 3rd electric capacity, the other end and ISO122P of the 3rd electric capacity every The 8th pin connection of off-chip piece, the 10th pin of ISO122P isolating chips are connected with one end of the 4th electric capacity, the 4th electric capacity The other end is connected with the 8th pin of ISO122P isolating chips.
- 2. mutually isolated acquisition and memory system between a kind of multichannel data according to claim 1, it is characterised in that described Anti thunder strike circuit includes first to 3rd resistor, electric capacity, the first diode and the second diode, one end of first resistor and second One end connection of resistance, the other end and ground, one end of 3rd resistor, one end of electric capacity, the first diode of second resistance are just Pole, the negative pole of the second diode connect respectively, the other end of first resistor and the other end of 3rd resistor, electric capacity the other end, The negative pole of first diode, the anode of the second diode connect respectively.
- 3. mutually isolated acquisition and memory system between a kind of multichannel data according to claim 1, it is characterised in that FLASH memory modules are FLASH arrays.
- 4. mutually isolated acquisition and memory system between a kind of multichannel data according to claim 3, it is characterised in that FLASH arrays include multiple FLASH chips.
- 5. mutually isolated acquisition and memory system between a kind of multichannel data according to claim 1, it is characterised in that modulus The model ADS8365 of converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023705.5A CN107704210A (en) | 2017-10-27 | 2017-10-27 | Mutually isolated acquisition and memory system between a kind of multichannel data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023705.5A CN107704210A (en) | 2017-10-27 | 2017-10-27 | Mutually isolated acquisition and memory system between a kind of multichannel data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107704210A true CN107704210A (en) | 2018-02-16 |
Family
ID=61182407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711023705.5A Withdrawn CN107704210A (en) | 2017-10-27 | 2017-10-27 | Mutually isolated acquisition and memory system between a kind of multichannel data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107704210A (en) |
-
2017
- 2017-10-27 CN CN201711023705.5A patent/CN107704210A/en not_active Withdrawn
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180216 |