CN104965936A - Multi-channel data acquiring and testing system - Google Patents
Multi-channel data acquiring and testing system Download PDFInfo
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- CN104965936A CN104965936A CN201510332463.2A CN201510332463A CN104965936A CN 104965936 A CN104965936 A CN 104965936A CN 201510332463 A CN201510332463 A CN 201510332463A CN 104965936 A CN104965936 A CN 104965936A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/40—Data acquisition and logging
Abstract
An embodiment of the invention discloses a multi-channel data acquiring and testing system, relates to the technical field of data acquisition, and solves the defect that the utilization rate of storage space of an existing multi-channel data acquiring and testing system is lower. The multi-channel data acquiring and testing system disclosed by the invention comprises an upper computer and a multi-channel data acquisition card, wherein the upper computer is used for setting a data control command, transmitting the data control command to the multi-channel data acquisition card, and testing to-be-tested data which is received from the multi-channel data acquisition card; and the multi-channel data acquisition card is used for gating a to-be-acquired channel according to the data control command transmitted by the upper computer and setting data length of each to-be-acquired channel, acquiring and storing the to-be-tested data based on the gated to-be-acquired channel and the data length of each to-be-acquired channel, and transmitting the to-be-tested data to the upper computer.
Description
Technical field
The present invention relates to data acquisition technology field, particularly relate to a kind of multi-channel data acquisition and test macro.
Background technology
Distributed test system containing a large amount of test terminal has a wide range of applications in the industrial production, wherein, the task of multi-channel data acquisition and test macro is the digital signal that simulating signal that pick-up transducers exports converts computing machine to and can identify, and being sent to computing machine, computing machine can show the data obtained or the operation such as conversion.
Realizing in process of the present invention, inventor finds at least there is following technical matters in prior art:
During the multichannel data acquisition system image data of current existence, the storage space shared by each passage is fixing.Such as: storage space is 4 channel acquisition cards of 1024M byte, and every passage takies 256M bytes of storage space, when selecting one of them passage, storage size is still 256M byte, and remaining remainder bytes can not take.Visible, the storage space utilization factor of existing multichannel data acquisition system is lower.
Summary of the invention
The invention provides a kind of multi-channel data acquisition and test macro, it passes through the data length of dynamic conditioning passage to be collected and each passage to be collected, improves the utilization factor of system memory space.
The invention provides a kind of multi-channel data acquisition and test macro, described system comprises host computer and multi-channel data acquisition board, wherein,
Described host computer, for setting data control command, sends described rate control command to described multi-channel data acquisition board, and tests the testing data received from described multi-channel data acquisition board;
Described multi-channel data acquisition board, for the rate control command gating passage to be collected sent according to described host computer and the data length arranging each passage to be collected, based on the data length of the passage to be collected of gating and the passage each to be collected of setting testing data gathered and store, and sending described testing data to described host computer;
Wherein, described rate control command comprise port number to be collected, each passage to be collected data length, gather start instruction information, gather and terminate indication information and gather reset indication information.
Multi-channel data acquisition provided by the invention and test macro, described system comprises host computer and multi-channel data acquisition board, described host computer, for setting data control command, send described rate control command to described multi-channel data acquisition board, and the testing data received from described multi-channel data acquisition board is tested; Described multi-channel data acquisition board, for the rate control command gating passage to be collected sent according to described host computer and the data length arranging each passage to be collected, based on the data length of the passage to be collected of gating and the passage each to be collected of setting testing data gathered and store, and sending described testing data to described host computer.Compared with prior art, it according to the difference of selector channel, can carry out the entirety of data stream in real time, and memory module is adjusted, under the prerequisite not changing overall storage capacity, dynamic conditioning storage organization, when selecting data channel few, the data length of collection relatively can be increased; When data acquisition channel is more, can make multiple passage mean allocation storage space, to sum up, it can improve the utilization factor of the storage space of existing multi-channel data acquisition and test macro.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of multi-channel data acquisition of the present invention and test macro one embodiment;
Fig. 2 is the structural representation of multi-channel data acquisition of the present invention and another embodiment of test macro.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of multi-channel data acquisition and test macro, and described system comprises host computer 1 and multi-channel data acquisition board 2, wherein,
Described host computer 1, for setting data control command, sends described rate control command to described multi-channel data acquisition board 2, and tests the testing data received from described multi-channel data acquisition board;
Described multi-channel data acquisition board 2, for the rate control command gating passage to be collected sent according to described host computer 1 and the data length arranging each passage to be collected, carry out gathering to testing data based on the data length of the passage to be collected of gating and the passage each to be collected of setting and store, and sending described testing data to described host computer 1;
Wherein, described rate control command comprise port number to be collected, each passage to be collected data length, gather start instruction information, gather and terminate indication information and gather reset indication information.
The multi-channel data acquisition that the embodiment of the present invention provides and test macro, described system comprises host computer and multi-channel data acquisition board, described host computer, for setting data control command, send described rate control command to described multi-channel data acquisition board, and the testing data received from described multi-channel data acquisition board is tested; Described multi-channel data acquisition board, for the rate control command gating passage to be collected sent according to described host computer and the data length arranging each passage to be collected, based on the data length of the passage to be collected of gating and the passage each to be collected of setting testing data gathered and store, and sending described testing data to described host computer.Compared with prior art, it according to the difference of selector channel, can carry out the entirety of data stream in real time, and memory module is adjusted, under the prerequisite not changing overall storage capacity, dynamic conditioning storage organization, when selecting data channel few, the data length of collection relatively can be increased; When data acquisition channel is more, can make multiple passage mean allocation storage space, to sum up, it can improve the utilization factor of the storage space of existing multi-channel data acquisition and test macro.
As shown in Figure 2, the embodiment of the present invention provides a kind of multi-channel data acquisition and test macro, described system comprises host computer 1 and multi-channel data acquisition board 2, and described multi-channel data acquisition board 2 comprises data command control module 21, Streams Module 22, testing data load module 23, memory module 24 and memory control module 25.
Described data command control module 21, the rate control command for sending according to described host computer 1 determines the data length of port number to be collected and each passage to be collected, and gating passage to be collected and the data length that each passage to be collected is set.
Wherein, described rate control command comprise port number to be collected, each passage to be collected data length, gather start instruction information, gather and terminate indication information and gather reset indication information.
Particularly, described port number to be collected can be one or more, correspondingly, the data length of each passage to be collected can be select suitable numerical value according to the storage size of described memory module 24, if select the passage of data acquisition few, the data length of each passage to be collected can suitably become large, if select the passage of data acquisition many, the data length of each passage to be collected can suitably diminish.
Described Streams Module 22, for the data length according to the described passage to be collected of data command control module 21 gating and the passage each to be collected of setting, the testing data that described testing data load module 23 sends is received, and received testing data is sent to described memory module 24.
Described memory module 24, stores the described testing data received for the storage control command according to described storage control module 25, and stored testing data is uploaded to described host computer.
Described host computer 1, tests for the testing data sent described memory module 24.
The multi-channel data acquisition that the embodiment of the present invention provides and test macro, compared with prior art, it can according to the difference of selector channel, carry out the entirety of data stream in real time, and memory module is adjusted, under the prerequisite not changing overall storage capacity, dynamic conditioning storage organization, when selecting data channel few, the data length of collection relatively can be increased; When data acquisition channel is more, can make multiple passage mean allocation storage space, to sum up, it can improve the utilization factor of the storage space of existing multi-channel data acquisition and test macro.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (3)
1. multi-channel data acquisition and a test macro, is characterized in that, described system comprises host computer and multi-channel data acquisition board, wherein,
Described host computer, for setting data control command, sends described rate control command to described multi-channel data acquisition board, and tests the testing data received from described multi-channel data acquisition board;
Described multi-channel data acquisition board, for the rate control command gating passage to be collected sent according to described host computer and the data length arranging each passage to be collected, based on the data length of the passage to be collected of gating and the passage each to be collected of setting testing data gathered and store, and sending described testing data to described host computer;
Wherein, described rate control command comprise port number to be collected, each passage to be collected data length, gather start instruction information, gather and terminate indication information and gather reset indication information.
2. system according to claim 1, is characterized in that, described multi-channel data acquisition board comprises data command control module, Streams Module, testing data load module, memory module and memory control module, wherein,
Described data command control module, the rate control command for sending according to described host computer determines the data length of port number to be collected and each passage to be collected, and gating passage to be collected and the data length that each passage to be collected is set;
Described Streams Module, for the data length according to the described passage to be collected of data command control module gating and the passage each to be collected of setting, the testing data that described testing data load module sends is received, and received testing data is sent to described memory module;
Described memory module, stores the described testing data received for the storage control command according to described storage control module, and stored testing data is uploaded to described host computer;
Described host computer, tests for the testing data sent described memory module.
3. system according to claim 1 and 2, is characterized in that, described host computer is used for showing the described test data received or converting, and described conversion comprises Fourier transform and wavelet transformation.
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PCT/CN2015/084065 WO2016201756A1 (en) | 2015-06-16 | 2015-07-15 | Multi-channel data collection and testing system |
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CN108197068A (en) * | 2017-12-27 | 2018-06-22 | 中国科学院微电子研究所 | Embedded real-time data acquires and storage system and its method |
CN108319183A (en) * | 2017-12-19 | 2018-07-24 | 北京旋极信息技术股份有限公司 | A kind of multichannel analog amount harvester and method |
CN114430287A (en) * | 2022-01-27 | 2022-05-03 | 杭州长川科技股份有限公司 | Control method of multi-channel control system and multi-channel control system |
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