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Mesa ball X-Y trace pneumatic controller

A tabletop and trajectory technology, applied in the direction of pneumatic program control, fluidic program control, and feedback control, etc., can solve the problem of unsatisfactory accuracy, speed variation range, low-speed performance, unsatisfactory trajectory tracking effect, and the impact of real-time system stability, etc. problem, to achieve the effect of improving trajectory tracking effect, improving control accuracy and stability, and reducing system interference

Inactive Publication Date: 2009-02-18
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

Although the stable rolling of the ball on the board can be achieved, the trajectory tracking effect is not very satisfactory. The main reasons are as follows: 1. The coordinate signal of the ball on the board is collected by image processing technology, and the data sampling frequency is not fast enough
It has a great influence on the stable operation of the real-time system
2. Using a DC motor to directly drive the motion of the tablet is not ideal in terms of control accuracy, speed variation range, and low-speed performance.

Method used

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  • Mesa ball X-Y trace pneumatic controller

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Embodiment Construction

[0012] Such as figure 1 As shown, the present invention includes: a data acquisition card 1, a computer 2, a platform support 3, a platform 4, a potentiometer 6, a small ball 8, a touch screen device 12, and a platform servo device 14, and the connection mode is: the platform 4 and the platform support 3 pass through Angular bearing connection, the small ball 8 is placed on the touch screen device 12 as the controlled object, the touch screen device 12 is fixed on the platform 4, and is connected with the computer 2 through the standard RS232 bus, the potentiometer 6 is fixed on both ends of the platform bracket 3, and the data The acquisition card 1 is inserted into the PCI slot of the computer 2, and is connected to the connection terminal 18 through a data line, and the platform servo device 14 is arranged on the platform bracket 3 to drive the platform to move.

[0013] The touch screen device 12 includes: a touch screen 5 and a serial port controller 11, the connection me...

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Abstract

The present invention relates to a table ball X-Y path pneumatic control device, belonging to the field of machinery technology. Said invention includes data acquisition card, computer, platform support, platform, small ball, touch screen device, potentiometer and platform servo device. Besides, said invention also provides their connection mode, working principle of said table ball X-Y path pneumatic control device and its concrete application method.

Description

technical field [0001] The invention relates to a device in the field of mechanical technology, in particular to a pneumatic control device for table ball X-Y trajectory. Background technique [0002] Since the table ball X-Y trajectory pneumatic control device is a nonlinear control system, such as the unevenness of the table surface, the dead zone of the proportional flow control valve, etc. are the reasons for the nonlinearity of the system. In addition, the controlled object ball itself The equations of motion are also non-linear. So the choice of control method is a key to the whole system design. [0003] After searching the public literature of the prior art, it was found that Hu Linjing and others wrote an article "Experimental device for cricket control system based on fuzzy control" in "Experimental Technology and Management", Vol.22, No.14, 2005. This article introduced a An experimental device, which collects images through a CCD camera, obtains the coordinate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/02G05D3/20G05B19/44
Inventor 金惠良谢文华章自群宋小冬
Owner SHANGHAI JIAO TONG UNIV
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