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Signal generation method and system of process system, medium and equipment

A process system and signal generation technology, applied in the field of signal processing, can solve problems such as inability to output non-standard signals accurately and quickly, functional limitations, etc., and achieve the effects of high degree of reduction, improved efficiency, and high test accuracy

Active Publication Date: 2021-06-15
浙江昀晖自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently commonly used signal generating devices can only output standard signals including sine waves, square waves, and triangle waves. However, in the actual use of engineering, it is often necessary to use some non-standard signals for logic signal verification, control system debugging, and fault diagnosis analysis. etc., the existing signal generation terminals have functional limitations, and cannot accurately and quickly output the required non-standard signals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] This embodiment discloses a signal generation method of a process system, which can restore the real signal output by the process system, which is beneficial to the logic signal verification of the process system, control system debugging and fault diagnosis analysis, etc., such as figure 1 As shown, the method of this embodiment includes the following steps:

[0064] S1. Acquire discrete data files of the process system. In this embodiment, the generation of the discrete data file is a matrix-form data file established through the time of process system signal collection and corresponding values.

[0065] In this embodiment, the discrete data files of the process system can be obtained through the signal acquisition system of the process system. Specifically, the real-time signal of the process system is converted into a process quantity signal through a transmitter, and the signal is input to the process system control At the same time, the signal is sent to the sig...

Embodiment 2

[0095] This embodiment discloses a signal generating system of a process system, such as Figure 3a with 3b As shown, it includes a host computer and a signal generating terminal, and the signal generating terminal is connected to the host computer; in this embodiment, the signal generating terminal is connected to the signal generating terminal through a communication cable. in:

[0096] In this example, if Figure 3a As shown in , the host computer communicates with the signal acquisition system of the process system through the cloud server. The signal acquisition system collects the process signal converted from the process system transmitter in real time, and converts the collected process signal into a discrete data file. Then send it to the host computer, wherein both the signal acquisition system and the host computer have wireless communication functions, that is, both are equipped with wireless communication modules, such as WIFI modules, etc., and the signal acquisi...

Embodiment 3

[0119] This embodiment discloses a storage medium, which stores a program, and when the program is executed by a processor, the following operations are realized:

[0120] Acquire discrete data files of process systems;

[0121] Identify the time characteristics of discrete data files and determine the sampling time interval of the data;

[0122] For the discrete data whose time characteristics are identified, inverse operations are performed according to the characteristics of the acquisition channel;

[0123] For the data after the inverse operation, perform data temporal interpolation processing;

[0124] For the data processed by time data interpolation, the data is calculated and reprocessed according to the characteristics of the signal, and the signal file is obtained.

[0125] Detailed steps in the above processes can be as shown in Embodiment 1.

[0126] The storage medium in this embodiment may be a magnetic disk, an optical disk, a computer memory, a read-only me...

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PUM

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Abstract

The invention discloses a signal generation method and system of a process system, a medium and equipment. The method comprises the following steps: firstly, acquiring a discrete data document of the process system; after data time characteristic identification is carried out on the discrete data document, determining a sampling time interval of data; carrying out inverse operation on the discrete data of which the time characteristics are identified according to the characteristics of an acquisition channel; performing data temporal interpolation processing; performing data operation and reprocessing on the data after the time data interpolation processing according to the characteristics of the signal; and performing digital-to-analog conversion on the data after data operation and reprocessing to obtain a corresponding analog signal, and performing corresponding signal conditioning to obtain a final reduction signal. According to the invention, a non-standard signal can be generated, the real signal output by the process system is highly restored, and logic signal verification, control system debugging and fault diagnosis analysis of the process system are facilitated.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a signal generation method, system, medium and equipment of a process system. Background technique [0002] Currently commonly used signal generating devices can only output standard signals including sine waves, square waves, and triangle waves. However, in the actual use of engineering, it is often necessary to use some non-standard signals for logic signal verification, control system debugging, and fault diagnosis analysis. etc., the existing signal generation terminals have functional limitations, and cannot accurately and quickly output the required non-standard signals. [0003] Typical process system control system, such as container pressure control system, water level control system, pipeline flow control system, etc., the main signal flow is as follows Figure 3a with 3b Shown: The field transmitter monitors the change of the physical process quantity signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0256Y02P90/02
Inventor 谢永靖陈小燕
Owner 浙江昀晖自动化科技有限公司
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