Computer hosiery machine pattern data storing and reading method and system

Abstract

The invention discloses a computer hosiery machine pattern data storing and reading method and system. The system comprises a double-core processor control system which comprises a human-computer interaction processor and a main controller, an embedded main board comprises an embedded microprocessor and takes the embedded microprocessor as a core, a human-computer interaction function is achieved,the embedded main board is mainly used for designing pattern files and transmitting the pattern files, a control board comprises a digital signal processor and takes the digital signal processor as acore and mainly used for operating executing mechanism such as a pattern file storage FLASH module and a needle selecting device, bad blocks of the FLASH module are managed by building a bad block table, sectional buffering reading of data of a FLASH storage is performed, and the main controller cannot directly operate the FLASH. The system has the advantages of simplicity in operation, convenience in control and stability and reliability in running.

Description

technical field [0001] The invention belongs to the technical field of computer hosiery machines, in particular to a method and system for storing and reading pattern data of computer hosiery machines. Background technique [0002] As a representative class of textile products, socks are indispensable in people's daily life, and they are woven by hosiery machines. The hosiery machine is a circular weft knitting machine, which is the main machine for knitting cotton socks and stockings. The computer hosiery machine is a highly automated knitting equipment integrating computer technology, electronic technology, knitting technology and mechanical processing technology. The computer hosiery machine control system is the control core of the computer hosiery machine. It is mainly used to control the coordination of various mechanisms according to the knitting requirements, and realize electronic jacquard, segmented knitting, fault self-checking and other automatic production cont...

AI Technical Summary

Problems solved by technology

The lower computer of the computer hosiery machine control system generally uses a digital signal processor DSP. Taking DSP2812 as an example, the capacity of the HO RAM data area is 8KB, which determines that the maximum size of pattern data can only be stored at 8KB, while the pattern data stored in FLASH The pattern file has dozens of KB, which is far larger than the total capacity of the controller RAM. If it is considered that the pattern data is transferred to the RAM at one time during the jacquard process, and the controller is waiting for the jacquard, it cannot be realized.

The action time of each jacquard piece in the jacquard process is only 1ms. If the controller directly reads the data in the FLASH to call without going through the RAM, the call time is longer than the jacquard action time, that is, the data reading speed cannot meet the jacquard speed, which leads to knitting. The pattern produced is not expected, and may even cause the entire hosiery machine system to crash

In addition, there are bad blocks in the FLASH memory during use, which will inevitably have an adverse impact on the security and reliability of flower data storage

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