CN104834481A - Signal analysis system and signal analysis method for large-capacity rapid storage and playback - Google Patents
Signal analysis system and signal analysis method for large-capacity rapid storage and playback Download PDFInfo
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- CN104834481A CN104834481A CN201510216079.6A CN201510216079A CN104834481A CN 104834481 A CN104834481 A CN 104834481A CN 201510216079 A CN201510216079 A CN 201510216079A CN 104834481 A CN104834481 A CN 104834481A
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Abstract
The invention discloses a signal analysis system and a signal analysis method for large-capacity rapid storage and playback, which belong to the field of signal analysis. The signal analysis system comprises a host central processor module, a data acquisition module, a data processing module, a storage and playback control module and a plurality of recording hard disks. After broadband medium-frequency signals enter the data acquisition module for analog-to-digital conversion, the data processing module carries out digital mixing and decimation filtering on the signals, the signals then enter the storage and playback control module, and under the control of the storage and playback control module, data are directly outputted to the host central processor module, or are stored into the recording hard disks. While analyzing signals, the signal analysis system and the signal analysis method for large-capacity rapid storage and playback disclosed by the invention continuously store high-speed sample data into the hard disks without loss, and can implement the playback and analysis of the data, and not only can sudden and transient signals be conveniently recorded, but also the recorded signals can be analyzed in depth, so that more valuable information can be mined.
Description
Technical field
The invention belongs to signal analysis field, be specifically related to signal analysis device and the method for the playback of a kind of Large Copacity quick storage.
Background technology
Along with the development of infotech, what electromagnetic environment became becomes increasingly complex, the seizure and the analysis difficulty that realize signal are increasing, the signal data amount that signal acquisition needs is also increasing, and real-time analysis is difficult to the analysis much transient signal being realized to multiparameter multi-angle, thus easily cause the loss of information.Traditional signal storage is all read sampling or the data that processs by CPU module, then writes in hard disk that CPU module mounts and realize.Data are through repeatedly dump, and to be limited by CPU shared bus speed slow, when data volume is larger, the high speed that cannot realize raw data does not lose storage, and the continuous high speed that cannot realize sampled data stores, also cannot high-speed playback, can only realize being interrupted and store, namely store a part, lose a part, Real-Time Monitoring and the record of signal cannot be met.
Summary of the invention
For the above-mentioned technical matters existed in prior art, the present invention proposes signal analysis device and the method for a kind of Large Copacity quick storage playback, reasonable in design, overcome the deficiencies in the prior art, easy to maintenance, cheap, there is good effect.
To achieve these goals, the present invention adopts following technical scheme:
A signal analysis device for Large Copacity quick storage playback, comprises host cpu module, data acquisition module, data processing module, storage playback controls module and some recording disks;
Wideband IF signal enters after data acquisition module carries out analog to digital conversion, to storing playback controls module after data processing module is by signal digital mixing and filtering extraction process, directly export host cpu module to by storing playback controls module control data, or save the data in some recording disks.
Preferably, described storage playback controls module comprises two-way buffer memory First Input First Output, disk state parameters unit, hard-disc storage control module, controling parameters unit and some Serial Advanced Technology Attachment interfaces.
In addition, the present invention also mentions the signal analysis method of a kind of Large Copacity quick storage playback, and the method adopts the signal analysis device of above-mentioned a kind of Large Copacity quick storage playback, comprises the following steps:
Step 1: wideband IF signal enters after data acquisition module carries out analog to digital conversion and enters data processing module;
Step 2: data processing module stores playback controls module by entering after signal digital mixing and filtering extraction process;
Step 3: store playback controls module control data and directly export host cpu module to, or export hard-disc storage control module to after two-way buffer memory First Input First Output;
Step 4: hard-disc storage control module is assigned to several Serial Advanced Technology Attachment mouth simultaneously carry out data storage simultaneously according to the data arranged producing of controling parameters unit;
Step 5: be saved in the status word of hard-disc storage control module by the store status of each Serial Advanced Technology Attachment mouth, is read by host cpu module and analyzes;
Step 6: set up a stored record message file in the system disk of host cpu module mounting, for the size of records store data, and the particular location of data in recording disk, and current software and hardware running parameter is added as file header;
Step 7: according to the stored record message file in native system hard disk, searched the white space of recording disk by host software, is stored from white space;
Step 8: the controling parameters unit data total amount write that the hard disk serial number starting to record, sector index are numbered and will be recorded being stored playback controls module, starts to carry out signal analysis;
Step 9: when finding that the signal parameter conformed to a predetermined condition occurs, host cpu module control store playback controls module starts data stored record;
Step 10: store playback controls module by the data in two-way buffer memory First Input First Output, by the control of hard-disc storage control module, flowing water decomposes in the recording disk stored in mounting, and each recording disk is i.e. 512 bytes of cycle assignment sector data amount in order;
Step 11: when signal analysis device is operated in playback state, chooses the log file wanting playback from system disk by host software, file reading file head, resets in signal analysis device by the software and hardware running parameter in file header;
Step 12: data are switched to hard disk playback path by storing playback controls module, positional information in file reading on recording disk, comprise hard disk serial number, initial sector index, total record data volume, and the write of these positional informations is stored the controling parameters unit of playback controls module, and control store playback controls module starts playback;
Step 13: store playback controls module by the parameter arranged, from recording disk, read record data be put into playback buffer district, host cpu module starts to read data by Peripheral Component Interconnect STD bus.
The Advantageous Effects that the present invention brings:
The present invention proposes signal analysis device and the method for the playback of a kind of Large Copacity quick storage, compared with prior art, the signal analysis device of a kind of Large Copacity quick storage playback and method, while signal analysis, that is not lost continuously by high-speed sample data is stored on hard disk, and can realize the recovering and analysis of data, has both been convenient to the signal recording burst transition, also can carry out deep analysis to the signal of record, excavate more how valuable information.
Hard disk replacement of the present invention is convenient, realizes with low cost, can realize real-time analysis, also can realize off-line analysis, also may be used for unattended long-time signal monitoring.
Accompanying drawing explanation
Fig. 1 is the signal analysis device of a kind of Large Copacity quick storage of the present invention playback and the hardware elementary diagram of method.
Fig. 2 is the signal analysis device of a kind of Large Copacity quick storage of the present invention playback and the FB(flow block) of method.
Fig. 3 is the read and write access precedence diagram of sector in multiple recording disk in the signal analysis device of a kind of Large Copacity of the present invention quick storage playback and method.
Fig. 4 is the storage order figure of sector in the signal analysis device of a kind of Large Copacity quick storage of the present invention playback and the recording disk of method.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As shown in Figure 1, the signal analysis device of a kind of Large Copacity quick storage playback, comprises host cpu module, data acquisition module, data processing module, storage playback controls module and some recording disks;
Wideband IF signal enters after data acquisition module carries out analog to digital conversion, to storing playback controls module after data processing module is by signal digital mixing and filtering extraction process, directly export host cpu module to by storing playback controls module control data, or save the data in some recording disks.
Described storage playback controls module comprises two-way buffer memory First Input First Output, disk state parameters unit, hard-disc storage control module, controling parameters unit and some Serial Advanced Technology Attachment interfaces.
On the basis of above-described embodiment, the invention provides the signal analysis method of a kind of Large Copacity quick storage playback, be stored into hard disk for what do not lost continuously by high-speed sample data, and realize the recovering and analysis of data, wherein, comprise the following steps (as shown in Figure 2):
Step 1: wideband IF signal enters after data acquisition module carries out analog to digital conversion and enters data processing module;
Step 2: data processing module stores playback controls module by entering after signal digital mixing and filtering extraction process;
Step 3: store playback controls module control data and directly export host cpu module to, or export hard-disc storage control module to after two-way buffer memory First Input First Output;
Step 4: hard-disc storage control module is assigned to several Serial Advanced Technology Attachment mouth simultaneously carry out data storage simultaneously according to the data arranged producing of controling parameters unit;
Step 5: be saved in the status word of hard-disc storage control module by the store status of each Serial Advanced Technology Attachment mouth, is read by host cpu module and analyzes;
Step 6: set up a stored record message file in the system disk of host cpu module mounting, for the size of records store data, and the particular location of data in recording disk, and current software and hardware running parameter is added as file header;
Step 7: according to the stored record message file in native system hard disk, searched the white space of recording disk by host software, is stored from white space;
Step 8: the controling parameters unit data total amount write that the hard disk serial number starting to record, sector index are numbered and will be recorded being stored playback controls module, starts to carry out signal analysis;
Step 9: when finding that the signal parameter conformed to a predetermined condition occurs, host cpu module control store playback controls module starts data stored record;
Step 10: store playback controls module by the data in two-way buffer memory First Input First Output, by the control of hard-disc storage control module, flowing water decomposes in the recording disk stored in mounting, each recording disk is i.e. 512 bytes of cycle assignment sector data amount in order, and in multiple recording disk, the read and write access order of sector as shown in Figure 3;
Step 11: when signal analysis device is operated in playback state, chooses the log file wanting playback from system disk by host software, file reading file head, resets in signal analysis device by the software and hardware running parameter in file header;
Step 12: data are switched to hard disk playback path by storing playback controls module, positional information in file reading on recording disk, comprise hard disk serial number, initial sector index, total record data volume, and the write of these positional informations is stored the controling parameters unit of playback controls module, and control store playback controls module starts playback;
Step 13: store playback controls module by the parameter arranged, from recording disk, read record data be put into playback buffer district, host cpu module starts to read data by Peripheral Component Interconnect STD bus.
The control of host cpu module to multiple SATA2 hard disk is completed by hard-disc storage control module, the form of controling parameters is: total data volume, initial sector index, sector number, the inadequate sector of final data amount, a sector is filled up by adding zero, the difference of the padding data number data volume that to be hard-disc storage control module read and write according to reality and every number of sectors 512 byte, add in last sector or leave out zero, phase inverse processing is carried out when reading, control the logic parameter (sector number) of hard disk to hard disc physical parameter (magnetic head, sector, cylinder etc.) conversion completed by hard-disc storage control module.
The method can also realize the sampled data record under triggering mode, trigger condition is calculated by host cpu module, host cpu module is in signal analysis state always, in time finding that the signal parameter conformed to a predetermined condition occurs, the module of control store playback controls immediately can start data storage, avoid the loss of signal data, and the efficiency of record storage can be improved.
In certain model signal analyzer, require that on the one hand signal analyzer can wideband data after the sampling of real time record 200MHz bandwidth, the later stage can carry out recovering and analysis by instrument itself to the wideband data recorded on the other hand.Data rate after the bandwidth quantification treatment of the maximum 200MHz of signal analyzer is 500M byte p.s., the recording disk interface adopting mounting is SATA2, rotating speed is 7200 revolutions per seconds, storage speed is per second reaches 300M byte, therefore adopt the present invention program to mount 2 hard disk peak values and can reach 600M byte per second, just can realize full rate record, this programme stores playback controls module by field programmable gate array programming realization, the data of two-way for data buffer storage First Input First Output are directly converted to serial SATA2 interface data by the hard-disc storage control module of its inside, do not need the participation of central processing unit and host software etc., its read-write speed is directly determined by field programmable gate array clock, thus efficient read or write speed can be ensured.Adopt after the program, signal analyzer can limit record, and limit is analyzed, and also can trigger efficient storage original signal data in real time.
User is arranged when signal analyzer finds 3.2GHz frequency there is the signal exceeding threshold level, just starts to start the raw data recorded in whole intermediate-frequency bandwidth, and requires record 1G byte continuously.Host software is first from system disk, search all log files, see connect recording disk has used which sector of which hard disk, if used 1280 sectors of second hard disk last time, then start the position dish 2 recorded specifically, initial sector 1281, capacity 1G byte, instrument software first completes the foundation of log file at system disk, and the running parameter of current instrument as frequency 3.2GHz, intermediate-frequency bandwidth 200MHz, datum-10dBm, channel attenuation amount 10dB etc. write in log file, again reel number 2, initial sector numbering 1281, capacity 1G byte 3 parameters about record position are stored in system disk, and these 3 parameter read-ins are stored playback controls module controling parameters district, start to carry out signal analysis, when analysis finds 3.2GHz frequency there is the signal exceeding threshold level, start stored record immediately to control, playback controls module then receives data from the two-way First Input First Output of data buffer storage, be one group data by 512 bytes be a sector, (as shown in Figure 4) carrying out interleaved enters in two hard disks, until write 1G byte i.e. 2097152 sectors all over.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (3)
1. a signal analysis device for Large Copacity quick storage playback, is characterized in that: comprise host cpu module, data acquisition module, data processing module, storage playback controls module and some recording disks;
Wideband IF signal enters after data acquisition module carries out analog to digital conversion, to storing playback controls module after data processing module is by signal digital mixing and filtering extraction process, directly export host cpu module to by storing playback controls module control data, or save the data in some recording disks.
2. the signal analysis device of a kind of Large Copacity quick storage according to claim 1 playback, is characterized in that: described storage playback controls module comprises two-way buffer memory First Input First Output, disk state parameters unit, hard-disc storage control module, controling parameters unit and some Serial Advanced Technology Attachment interfaces.
3. a signal analysis method for Large Copacity quick storage playback, is characterized in that: the signal analysis device adopting a kind of Large Copacity quick storage as claimed in claim 2 playback, carries out as follows:
Step 1: wideband IF signal enters after data acquisition module carries out analog to digital conversion and enters data processing module;
Step 2: data processing module stores playback controls module by entering after signal digital mixing and filtering extraction process;
Step 3: store playback controls module control data and directly export host cpu module to, or export hard-disc storage control module to after two-way buffer memory First Input First Output;
Step 4: hard-disc storage control module is assigned to several Serial Advanced Technology Attachment mouth simultaneously carry out data storage simultaneously according to the data arranged producing of controling parameters unit;
Step 5: be saved in the status word of hard-disc storage control module by the store status of each Serial Advanced Technology Attachment mouth, is read by host cpu module and analyzes;
Step 6: set up a stored record message file in the system disk of host cpu module mounting, for the size of records store data, and the particular location of data in recording disk, and current software and hardware running parameter is added as file header;
Step 7: according to the stored record message file in native system hard disk, searched the white space of recording disk by host software, is stored from white space;
Step 8: the controling parameters unit data total amount write that the hard disk serial number starting to record, sector index are numbered and will be recorded being stored playback controls module, starts to carry out signal analysis;
Step 9: when finding that the signal parameter conformed to a predetermined condition occurs, host cpu module control store playback controls module starts data stored record;
Step 10: store playback controls module by the data in two-way buffer memory First Input First Output, by the control of hard-disc storage control module, flowing water decomposes in the recording disk stored in mounting, and each recording disk is i.e. 512 bytes of cycle assignment sector data amount in order;
Step 11: when signal analysis device is operated in playback state, chooses the log file wanting playback from system disk by host software, file reading file head, resets in signal analysis device by the software and hardware running parameter in file header;
Step 12: data are switched to hard disk playback path by storing playback controls module, positional information in file reading on recording disk, comprise hard disk serial number, initial sector index, total record data volume, and the write of these positional informations is stored the controling parameters unit of playback controls module, and control store playback controls module starts playback;
Step 13: store playback controls module by the parameter arranged, from recording disk, read record data be put into playback buffer district, host cpu module starts to read data by Peripheral Component Interconnect STD bus.
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Cited By (1)
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| CN112925568A (en) * | 2021-03-28 | 2021-06-08 | 杭州迪普信息技术有限公司 | Data transmission method between modules and control module |
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