Object simulation module

A simulation and object technology, applied in simulators, program control, instruments, etc., can solve problems such as difficulty in verifying the stability of control algorithms, low flexibility, and inability to output process data, achieving high cost performance, rich communication interfaces, and cost savings Effect

Inactive Publication Date: 2022-05-13
王伟
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] 3. Low flexibility, physical objects cannot output process data in extreme cases, and it is difficult for users to verify the stability of the control algorithm

Method used

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Examples

Experimental program
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Embodiment Construction

[0034] An object simulation module, see Figure 1-Figure 6 , which includes a control circuit and a human-computer interaction part;

[0035] The control circuit includes an ARM controller module, an analog input sampling circuit, an analog output circuit, and a communication interface circuit. The ARM controller module is used to collect external input analog signals, perform mathematical model calculations, and output corresponding proportional PWM signals. Provide communication interface for upper computer communication;

[0036] The analog input sampling circuit is used to receive the external set value;

[0037] The analog output circuit is used to convert the simulation results and the corresponding proportional PWM signal into a standard analog signal for the process control system;

[0038] The communication interface circuit provides a communication interface for connecting with the host computer;

[0039] The control circuit and the human-computer interaction part...

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Abstract

The invention provides an object simulation module which can simulate process data output of various control objects according to setting, and provides reliable experiment objects for evaluating the process control function, the use method, the control precision and the like of an industrial controller. The circuit comprises a control circuit; a man-machine interaction part; the control circuit comprises an ARM controller module, an analog quantity input sampling circuit, an analog quantity output circuit and a communication interface circuit, and the ARM controller module is used for collecting an external input analog quantity signal, performing mathematical model calculation, outputting a PWM signal in a corresponding proportion and providing a communication interface for communication of an upper computer; the analog input sampling circuit is used for receiving an external set value; the analog quantity output circuit is used for converting a corresponding proportion of PWM signal into a standard analog signal for a process control system according to an analog simulation result; the communication interface circuit provides a communication interface and is used for being connected with an upper computer; the control circuit and the man-machine interaction part are in communication connection through an SPI bus.

Description

technical field [0001] The invention relates to the technical field of industrial signal detection, in particular to an object simulation module. Background technique [0002] In the existing technology, process control objects (such as electric furnace heating, water level control, flow control, and pressure control) are all built with real objects, and real heating, liquid level control, etc. are performed according to the output signal of the industrial controller, and the process data is fed back to the industry. controller; [0003] Usually when evaluating an industrial controller, users program through the development software provided by the equipment manufacturer to control real physical objects (such as electric furnaces, water tanks, and pressure vessels), and then use sensors to detect process data, which is converted from transmitters to 4-20mA or 0-10V is fed back to the industrial controller, and the process control algorithm (such as PID) is realized in the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 王伟
Owner 王伟
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