CN207408932U - 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
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- CN207408932U CN207408932U CN201721401970.8U CN201721401970U CN207408932U CN 207408932 U CN207408932 U CN 207408932U CN 201721401970 U CN201721401970 U CN 201721401970U CN 207408932 U CN207408932 U CN 207408932U
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Abstract
The utility model discloses acquisition and memory systems mutually isolated between a kind of multichannel data, and conditioning module, analog-digital converter, fpga logic controller, RS422 decoder modules, optocoupler input module, RS422 receivers, RS422 transmitters, FLASH memory modules and USB interface are followed including signal isolation module, signal；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 respectively with fpga logic controller.The utility model meets aircraft telemetry large capacity, the real-time storage of high-speed, ensures the reliable recovery of data.
Description
Technical field
The utility model is related to acquisitions mutually isolated between aircraft telemetry field, particularly a kind of multichannel data to deposit
Storage 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 of great significance.Tracking measurement, telemetry and telecommand system are the essential parts of entire 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 telemetering
The data provided can provide the status information of spacecraft 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 test the speed
Radiofrequency signal, answering machine also beam back ranging information.There must be the sensor of detection various parameters for telemetering, 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 generate substantial amounts of telemetering and image data, it is necessary to pass through
Real-time memory system completes the storage of data, meets the needs of aircraft data recycling.Compared with wireless data returns technology, number
It is aircraft telemetering neck according to real-time memory system has good confidentiality, the bit error rate is low, data band is roomy, the advantages such as of low cost
The key technology in domain.
With the development of aircraft telemetry, required acquisition storage data class is increasing, data volume increasingly
Greatly, data storage rate also improves 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 cable and data cable
It is synchronous, and as the gradual increase of memory capacity, storage error rates of data also steeply rise, aircraft telemetry system can not be met
The demand of proposition.And may be interfered with each other 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, may cause harmful effect, storage system by other circuits to hardware
It can be also unstable reliable.
The content of the invention
Technical problem to be solved in the utility model is overcome the deficiencies in the prior art and between providing a kind of multichannel data
Mutually isolated acquisition and memory system, the utility model meet aircraft telemetry large capacity, the real-time storage of high-speed, protect
Demonstrate,prove the reliable recovery of data.
The utility model uses following technical scheme to solve above-mentioned technical problem：
According to the utility model proposes a kind of multichannel data between mutually isolated acquisition and memory system, including signal isolation
Module, 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 the anti thunder strike circuit, stagnant ring comparison circuit and the isolation circuit that are linked in sequence successively, described
Isolation circuit includes ISO122P isolating chips and the first capacitance to the 4th capacitance, wherein, the 1st pin of ISO122P isolating chips
It is connected with one end of the first capacitance, the other end of the first capacitance is connected with the 16th pin of ISO122P isolating chips, ISO122P
2nd pin of isolating chip is connected with one end of the second capacitance, the other end of the second capacitance and the 16th of ISO122P isolating chips the
Pin connects, and the 9th pin of ISO122P isolating chips is connected with one end of the 3rd capacitance, the other end of the 3rd capacitance and
The 8th pin connection of ISO122P isolating chips, the 10th pin of ISO122P isolating chips are connected with one end of the 4th capacitance, the
The other end of four capacitances is connected with the 8th pin of ISO122P isolating chips.
As the further side of optimization of acquisition and memory system mutually isolated between a kind of multichannel data described in the utility model
Case, the anti thunder strike circuit include first to 3rd resistor, capacitance, the first diode and the second diode, the one of first resistor
End is connected with one end of second resistance, the other end and ground, one end of 3rd resistor, one end of capacitance, the one or two of second resistance
The anode of pole pipe, the cathode of the second diode connect respectively, the other end of first resistor and the other end of 3rd resistor, capacitance
The other end, the cathode of the first diode, the anode of the second diode connect respectively.
As the further side of optimization of acquisition and memory system mutually isolated between a kind of multichannel data described in the utility model
Case, FLASH memory modules are FLASH arrays.
As the further side of optimization of acquisition and memory system mutually isolated between a kind of multichannel data described in the utility model
Case, FLASH arrays include multiple FLASH chips.
As the further side of optimization of acquisition and memory system mutually isolated between a kind of multichannel data described in the utility model
Case, the model ADS8365 of analog-digital converter.
The utility model compared with prior art, has following technique effect using above technical scheme：
（1）The utility model uses the full isolation technology of signal, to avoid the interference effect that digital-to-analogue is brought altogether to transmission matter
Amount, to ensure to be independent of each other between each signal, while when avoiding certain road signal transmission fault occurs, to hardware, other circuits cause
Harmful effect；
（2）Anti-lightning design is employed, can be played a protective role to the lightning strike signals of upper kilovolt, makes the sensor letter of overvoltage
Number it will not damage circuit；
（3）The utility model meets aircraft telemetry large capacity, the real-time storage of high-speed, ensures the reliable of data
Recycling, provide anti-lightning, except noise jamming, isolation the effects that, substantially increase the security of engine control system.
Description of the drawings
Fig. 1 is the schematic diagram of Tthe utility model system.
Specific embodiment
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of acquisition and memory system mutually isolated between multichannel data, which is characterized in that including signal every
From module, 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 the anti thunder strike circuit, stagnant ring comparison circuit and the isolation circuit that are linked in sequence successively, described
Isolation circuit includes ISO122P isolating chips and the first capacitance to the 4th capacitance, wherein, the 1st pin of ISO122P isolating chips
It is connected with one end of the first capacitance, the other end of the first capacitance is connected with the 16th pin of ISO122P isolating chips, ISO122P
2nd pin of isolating chip is connected with one end of the second capacitance, the other end of the second capacitance and the 16th of ISO122P isolating chips the
Pin connects, and the 9th pin of ISO122P isolating chips is connected with one end of the 3rd capacitance, the other end of the 3rd capacitance and
The 8th pin connection of ISO122P isolating chips, the 10th pin of ISO122P isolating chips are connected with one end of the 4th capacitance, the
The other end of four capacitances is connected with the 8th pin of ISO122P isolating chips.
RS422 receivers parse for exporting the order of reception to fpga logic controller, start when receiving
During record order, RS422 decoder modules start to receive pcm stream, until storage system is powered down.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
It is also 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, capacitance, 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 capacitance, the
The anode of one diode, the cathode 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 cathode 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 utility model uses the full isolation technology of signal, to avoid the interference effect that digital-to-analogue is brought altogether to transmission quality,
To ensure to be independent of each other between each signal, while when avoiding certain road signal transmission fault occurs, to hardware, other circuits cause not
Good influence；Anti-lightning design is employed, can be played a protective role to the lightning strike signals of upper kilovolt, makes the sensor signal of overvoltage not
Circuit can be damaged；The utility model meets aircraft telemetry large capacity, the real-time storage of high-speed, ensures the reliable of data
Recycling, provide anti-lightning, except noise jamming, isolation the effects that, substantially increase the security of engine control system.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deductions or replacement can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (5)
1. a kind of mutually isolated acquisition and memory system between multichannel data, which is characterized 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 respectively with fpga logic controller；Wherein,
Signal isolation module includes the anti thunder strike circuit, stagnant ring comparison circuit and the isolation circuit that are linked in sequence successively, the isolation
Circuit includes ISO122P isolating chips and the first capacitance to the 4th capacitance, wherein, the 1st pin of ISO122P isolating chips and the
One end connection of one capacitance, the other end of the first capacitance are connected with the 16th pin of ISO122P isolating chips, ISO122P isolation
2nd pin of chip is connected with one end of the second capacitance, the other end of the second capacitance and the 16th pin of ISO122P isolating chips
Connection, the 9th pin of ISO122P isolating chips is connected with one end of the 3rd capacitance, the other end and ISO122P of the 3rd capacitance every
The 8th pin connection of off-chip piece, the 10th pin of ISO122P isolating chips are connected with one end of the 4th capacitance, the 4th capacitance
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, which is characterized in that described
Anti thunder strike circuit includes first to 3rd resistor, capacitance, 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 capacitance, the first diode of second resistance are just
Pole, the cathode of the second diode connect respectively, the other end of first resistor and the other end of 3rd resistor, capacitance the other end,
The cathode 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, which is characterized 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, which is characterized 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, which is characterized in that modulus
The model ADS8365 of converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721401970.8U CN207408932U (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 |
|---|---|---|---|
| CN201721401970.8U CN207408932U (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 |
|---|---|
| CN207408932U true CN207408932U (en) | 2018-05-25 |
Family
ID=62408928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721401970.8U Expired - Fee Related CN207408932U (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) | CN207408932U (en) |
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2017
- 2017-10-27 CN CN201721401970.8U patent/CN207408932U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20191027 |