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High-speed real-time remote-sensing data recorder

A technology of remote sensing data and recorder, which is applied in the field of high-speed real-time remote sensing data recorder, can solve the problem of limited data volume, and achieve the effect of simple structure, convenient portability and wide application

Inactive Publication Date: 2005-09-21
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although very expensive special equipment can be used, the amount of recorded data is limited

Method used

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  • High-speed real-time remote-sensing data recorder
  • High-speed real-time remote-sensing data recorder
  • High-speed real-time remote-sensing data recorder

Examples

Experimental program
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Embodiment Construction

[0013] Such as figure 1 As shown, a number of PCI (Programmable Communication Interface)-SCSI (Small Computer System Interface) interface cards are inserted on the PCI local bus. These PCI cards can be designed by themselves, or suitable data acquisition cards on the market can be used. Use a high-speed PCI high-speed data acquisition card to directly access the high-speed data of the remote sensor to the dedicated memory buffer of the computer, and then write the data stored in the memory buffer into the high-speed computer in time through several high-speed PCI-SCSI cards. Hard disk or tape drive for permanent storage.

[0014] Such as figure 2 As shown, the data input device of the recorder is a PCI data acquisition card, which is responsible for receiving data from the data source and transferring the data to the memory through the PCI bus. The clock signal (CLK), trigger signal (TRIG), and 32bit parallel signals are input from the data of the remote sensor, and each cl...

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PUM

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Abstract

The data recorder comprises at least one piece of high speed PCI data acquisition card and at least one piece of PCI-SCSI interface card. The data acquisition card collects high-speed data of remote sensor, and stores collected the data through PCI bus to computer dedicated memory buffer area. The PCI-SCSI interface card writes data in computer memory buffer into SCSI storage device with large capacity through PCI bus. Based on PC, the invention realizes portable high speed real time data recorder, providing features of simple structure and easy to carry as well as possessing wide range of usage.

Description

technical field [0001] The invention relates to high-speed data acquisition domain recording, in particular to a high-speed real-time remote sensing data recorder for remote sensors. Background technique [0002] With the advent of the digital earth era, people use more and more advanced remote sensing methods to understand and observe our earth and space from various spectrums, and conduct in-depth research on it from various angles. For this reason, people need to record these large amounts of high-speed data first, and then conduct detailed and in-depth research and analysis. [0003] In recent years, with the widening of the remote sensor mapping band, the improvement of resolution, and the increase in the demand for image gray levels, the amount of raw data of remote sensors has increased and the data rate has continued to increase. For example, the L-SAR (imaging radar ) flight, the raw data rate is 8Mbytes / s, and in the improved L-SAR flight in the autumn of 2000, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/00G06F12/00G06F13/14
Inventor 荆麟角黄立胜刘月花
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI