Real-time control system and method for depth simulator

A real-time control system, deep simulator technology, applied in general control systems, control/regulation systems, simulators, etc., can solve problems such as non-real-time operation, system instability, and low control accuracy

Active Publication Date: 2011-03-09
JIANGSU ZHONGKUANG HEAVY EQUIP CO LTD +1
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  • Application Information

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Problems solved by technology

[0004] In order to overcome the shortcomings of existing systems such as unstable or non-real-time operation, and low control accuracy, the present invention provides a real-time control system for depth simu

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  • Real-time control system and method for depth simulator

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Embodiment Construction

[0038] Such as figure 1 As shown, the present invention includes two parts, a control system and a hydraulic system, wherein the control system is composed of an industrial control computer, a PCI-1716 data acquisition card and a PCI-1723 data output card, etc.; the hydraulic system is composed of a console and a hydraulic pump station. The structure diagram of the system is as follows figure 1 As shown, the functions of each module are as follows:

[0039] a) The hydraulic pump station provides a stable oil source to the pressure chamber of the servo valve;

[0040] b) The console includes electro-hydraulic servo valves and dual-range pressure sensors, etc., which are mainly used to convert electrical signals to pressure signals;

[0041] c) PCI-1716 is a 16-bit 16-channel multi-function data acquisition card, in which channel 0 is connected to the 0-10MPa pressure sensor for obtaining the voltage signal representing the depth fed back by the large-range sensor, and channel...

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Abstract

The invention discloses a real-time control system and real-time control method for a depth simulator. A hydraulic pump station provides an oil source so that a pressure cavity generates corresponding pressure; one path of the pressure is applied onto a user sensor, and the other path is applied onto a double-range pressure sensor; a feedback voltage signal of the double-range pressure sensor acquired by PCI-1716 is transmitted to an industrial control computer and is converted into a pressure intensity signal serving as a system feedback value; the industrial control computer receives a digital depth signal transmitted by an emulation host into a pressure intensity signal serving as a reference input value of a depth simulator system, calculates an error amount and performs PID operation and converts the calculated value amount representing the depth into a voltage signal; and the open size and in/out oil of an electro-hydraulic servo valve are controlled by a PCI-1723 data output card so that a working cavity generates corresponding pressure. The invention ensures low delay and high real-time performance, reduces the emulation error and improves the control precision.

Description

technical field [0001] The invention belongs to a pressure automatic control device with real-time control function. Background technique [0002] The depth simulator is one of the main devices of the hardware-in-the-loop simulation system for underwater vehicles. It receives the voltage signal representing the navigation depth from the simulation host, converts it into a corresponding pressure signal through electro-hydraulic conversion, and applies it to the device under test. . The depth simulator is mainly used for the navigation depth simulation of underwater vehicles, and can also be used for static and dynamic pressurization tests of general pressure transmitters. [0003] Kang Fengju used 80C196KB single-chip microcomputer to realize the control system design of the depth simulator in "A New Method of Improving the Accuracy of Water Pressure Simulator", and used the automatic switching of large and small range sensors to improve the depth determination accuracy in s...

Claims

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Application Information

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IPC IPC(8): G05B17/02
Inventor 杨惠珍康凤举郝莉莉李家宽
Owner JIANGSU ZHONGKUANG HEAVY EQUIP CO LTD
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