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Separation device for online measurement of dynamic error based on Bayesian network and method thereof

A Bayesian network and error separation technology, applied in computer control, instruments, simulators, etc., can solve problems such as late dynamic errors, high difficulty, and high complexity

Inactive Publication Date: 2012-02-15
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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Problems solved by technology

The research on dynamic error started late, is more difficult and more complex, its theoretical system is not perfect, and many problems are still in the exploratory stage, so it is rarely used in the dynamic error compensation of machine measurement

Method used

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  • Separation device for online measurement of dynamic error based on Bayesian network and method thereof
  • Separation device for online measurement of dynamic error based on Bayesian network and method thereof
  • Separation device for online measurement of dynamic error based on Bayesian network and method thereof

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Embodiment Construction

[0010] like figure 1 An on-board measurement dynamic error separation device based on the Bayesian network shown in this embodiment includes an error probe, a data receiver, a notebook computer, an ARM main control board module, a liquid crystal display, and related software. The error probe is connected to the data receiver through the radio transmission system, the notebook computer is connected to the data receiver through the RS232 interface, and the main control board is connected through the USB interface, and the liquid crystal interface in the ARM main CPU is connected to the liquid crystal display.

[0011] The features of the above-mentioned ARM main control board module are as follows:

[0012] 1. The main CPU adopts S3C2440 or S3C4510B chip;

[0013] 2. K9F2808U0B is used for electronic hard disk, HY57V641620 is used for memory SDRAM, and SST39VF160-70-4C is used for curing program FLASH;

[0014] 3. The USB interface chip that communicates with the notebook comp...

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Abstract

The invention relates to a separation device for online measurement of a dynamic error based on a Bayesian network and a method thereof. The device comprises an error probe, a data receiver, a notebook computer, an ARM (advanced RISC machine) master control board module, a liquid crystal display and relevant connecting wires, wherein the error probe is connected with the data receiver through a radio transmission system, the notebook computer is connected with the data receiver through an RS232 interface and is connected with a master control board through a USB (universal serial bus) interface, and a liquid crystal interface in an ARM master CPU (central processing unit) is connected with the liquid crystal display. The online measurement can be carried out repeatedly when specific parts are machined on an experimental machine tool, and various reasonable error separation models can be determined via orthogonal experiments according to the prior knowledge and expert knowledge, so as to optimize a dynamic error separation model. On the theoretical basis of the small sample Bayesian network, the online measurement of dynamic error separation can be deeply studied, and the device and the method have great significance to improve the accuracy of numerically controlled machining and measurement in China.

Description

technical field [0001] The invention relates to an on-machine measurement dynamic error separation device and method based on a Bayesian network. Background technique [0002] At present, the research on static error theory is relatively mature at home and abroad, and it has been more comprehensively applied in machine tools. The research on dynamic error starts late, is more difficult and more complicated, its theoretical system is not perfect, and many problems are still in the exploration stage, so it is rarely used in the dynamic error compensation of machine measurement. Therefore, this project aims to improve the machining efficiency of CNC machine tools and the manufacturing accuracy of parts. It is necessary to explore new on-machine measurement dynamic error separation and traceability technologies on the basis of summarizing and analyzing previous research results. , so as to give full play to the precision machining capability of high-precision CNC machine tools....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404
Inventor 闫利文贺其宝
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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