DSP(Digital Signal Processor)-based automatic channel timing sequence voltage acquisition method

A sequential voltage and automatic collection technology, applied in the direction of electrical signal transmission systems, signal transmission systems, instruments, etc., can solve problems such as time delay

Active Publication Date: 2014-02-19
BEIJING MECHANICAL EQUIP INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a DSP-based channel timing voltage automatic acquisition method, to solve the problem of time delay due to the root mean square processing of AD acquisition results

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  • DSP(Digital Signal Processor)-based automatic channel timing sequence voltage acquisition method

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Embodiment Construction

[0030] The specific steps of a DSP-based channel sequential voltage automatic acquisition method are:

[0031] The first step is to build a sequential voltage automatic acquisition system

[0032] The sequential voltage automatic acquisition system includes: a voltage conditioning circuit 1 , a voltage comparison circuit 2 , a DSP chip 3 , a communication circuit 4 , a RAM circuit 5 and a FLASH circuit 6 . The DSP chip 3 includes: an AD acquisition module 7 , a level detection module 8 , a data recording module 9 and a data transmission module 10 .

[0033] The function of the AD collection module 7 is: to complete the collection of AD results, and perform root mean square processing on the AD collection results.

[0034] The function of the level detection module 8 is to read the level value output by the voltage comparison circuit 2 .

[0035] The function of the data recording module 9 is: to store the equivalent value of the AD acquisition results of N channels of sequen...

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Abstract

The invention discloses a DSP (Digital Signal Processor) -based automatic channel timing sequence voltage acquisition method which is achieved through a voltage conditioning circuit (1), a voltage comparison circuit (2), a DSP chip (3), a communication circuit (4), a RAM (random-access memory) circuit (5) and a FLESH circuit (6). The DSP chip comprises an AD acquisition module (7), a level detection module (8), a data logging module (9) and a data transmission module (10). Through the method, multi-channel timing sequence voltage acquisition can be fulfilled, and detected N-channel timing sequences are conditioned through the voltage conditioning circuit (1), compared through the voltage comparison circuit (2) and acquired through the DSP chip (3). The method is simple in structure, easy to implement and can be widely used in circuits with higher requirements for real-time performance and integrality of acquisition results.

Description

technical field [0001] The invention relates to a sequential voltage automatic acquisition method, in particular to a DSP-based channel sequential voltage automatic acquisition method. Background technique [0002] In many industrial measurements such as automatic detection systems, computer data acquisition systems, and industrial control systems, it is often necessary to collect on-site analog signals into microprocessors. In the process of acquisition, various interference signals will enter the microprocessor along with the measured signal, and these signals will be superimposed on the useful measured signal to reduce the accuracy of the measurement. In order not to introduce electrical noise interference on site In the control system, it is often necessary to perform root mean square processing on the on-site AD acquisition results to filter out the influence of interference and noise. However, it takes a certain amount of time to process the root mean square of the ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C19/02
Inventor 葛文韬马良
Owner BEIJING MECHANICAL EQUIP INST
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