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Capacity expansion data acquisition board and data storage method

A data acquisition board and data storage technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problem of small storage capacity, achieve large-capacity data storage, convenient application, and small size

Inactive Publication Date: 2013-01-23
CHENGDU GUORONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] C: For the above storage method (3), there is a problem of small storage capacity

Method used

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  • Capacity expansion data acquisition board and data storage method
  • Capacity expansion data acquisition board and data storage method
  • Capacity expansion data acquisition board and data storage method

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Experimental program
Comparison scheme
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Embodiment

[0048] Such as Figure 1~3 As shown, the data acquisition board in the prior art is realized by a combination of an analog-to-digital conversion device (i.e. ADC), a field programmable gate array device (i.e. FPGA) or a digital signal processor (i.e. DSP) and its embedded software. It is divided into three situations in the background technology, but each has defects. In general, the working principle is as follows: the signal is transmitted to the analog-to-digital conversion device through the intermediate frequency input channel for digital sampling, and the digital output is sent to the field programmable gate array device, and at the same time it is processed by a digital signal processor connected to it at a high speed In this process, software such as computer flash memory, computer random storage, and synchronous dynamic random storage can also store data randomly.

[0049] The digital intermediate frequency processing board has the advantages of high efficiency, high...

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Abstract

The invention discloses a capacity expansion data acquisition board and a data storage method. The data acquisition board mainly comprises a field programmable gate array (FPGA) device, and an analog-to-digital conversion (ADC) device, a compact peripheral component interconnect (CPCI) / CPCI express (CPCIe) mixed bus interface and a data storage interface which are connected with the FPGA device. The data storage method comprises the following steps that: (a) the ADC device performs ADC on acquired data; (b) the FPGA device performs frequency division on the converted data; and (c) the data subjected to frequency division are stored in storage devices by a storage controller. The board is provided with the CPCI / CPCIe mixed bus interface and the data storage interface, so that high speed data can be continuously stored, and the board is small in size and can be subjected to capacity expansion according to the actual requirement.

Description

technical field [0001] The invention relates to the field of data acquisition and real-time storage, in particular to a data acquisition board capable of capacity expansion and high-speed data storage and a data storage method thereof. Background technique [0002] Data acquisition boards have been widely used in general data acquisition fields such as environmental data acquisition, and with the continuous expansion of data acquisition board application fields, for example: in radar, electronic countermeasures, laser imaging, satellite signal analysis, digital radio frequency storage, etc. The application in this field not only requires it to have the function of high-speed data transmission, but also requires it to have a large-capacity real-time memory, so that the computer can process, analyze, display and record after reading the data. [0003] At present, the most commonly used data acquisition boards are data acquisition boards based on the CPCI / CPCIe hybrid bus, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38
Inventor 万传彬杨光陆建国王林
Owner CHENGDU GUORONG TECH