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Method for querying sampling data through compressed time scale

A technology of sampling data and time stamping, which is applied to the redundancy in the operation for data error detection, electrical digital data processing, special data processing applications, etc. question

Active Publication Date: 2020-10-20
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For data acquisition systems with time stamps, time stamps must be recorded every time a set of data is collected. The time stamp system needs to include the entire collection and recording time, so the general data volume is large, which will reduce the storage efficiency of the storage space.
Even at lower sampling rates and less recording time, data volumes can be very large

Method used

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  • Method for querying sampling data through compressed time scale
  • Method for querying sampling data through compressed time scale
  • Method for querying sampling data through compressed time scale

Examples

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Embodiment

[0043] figure 1 It is a flowchart of a method for querying sampled data by compressing time scales in the present invention.

[0044] In this example, if figure 1 As shown, a method of querying sampled data by compressing the time scale mainly includes four major steps, and each major step is specifically:

[0045] S1. The external signal is input to the signal sensor, and the external signal is converted into an electrical signal through the signal sensor, and sent to the signal data acquisition system as a sampling pulse;

[0046] S2. The signal data acquisition system (referred to as the data acquisition system) uses the internal drive clock as the sampling clock, and then samples the sampling pulse. When the sampling clock arrives, the signal data acquisition system generates a sequence corresponding to the sampling data one by one. time scale;

[0047] In this example, if figure 2 as shown, figure 2The timing diagram of the data acquisition system for the time scal...

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Abstract

The invention discloses a method for querying sampling data through a compressed time scale, and the method comprises the steps: generating a sequence time scale in one-to-one correspondence with sampling data through a signal data collection system when a sampling clock arrives each time; generating compressed time scales by using the sequence time scales and latching the compressed time scales to a latch, wherein missing frame detection is carried out while each compressed time scale is generated, and effective error correction is carried out on missing frames, so that the fault tolerance ofthe system is improved; when the signal data collection system receives a query instruction and a to-be-queried code, finding the corresponding compressed time scale in the latch through the to-be-queried code, and then decoding the compressed time scale, so that a sequence time scale needing to be queried by the to-be-queried code is found.

Description

technical field [0001] The technical field of the data acquisition system of the present invention, more specifically, relates to a method for querying sampled data by compressing time scales. Background technique [0002] In order to synchronize the data collected by each channel of multiple devices and record the time sequence of the data, each collected data needs to be stamped with a corresponding time stamp, that is, the data time stamp. The data time scale is incremented according to the collection sequence, and the unique corresponding time mark on each group of data collection is marked. The time range corresponding to the time scale needs to be greater than the time range required for online collection records, so that the content and time sequence of the collected data can be judged based on the time scale. A system that generates time stamps and decodes time stamps is called a time stamping system. The time scale system is an important system for data collection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F11/14
CPCG06F16/2474G06F11/1479
Inventor 胡学海任代蓉杨成侯川江
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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