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Rapid transmission method of printing equipment data

A printing device and fast transmission technology, which is applied in the field of data transmission, can solve the problems of low data transmission throughput rate and waste of memory handling, etc., and achieve the effect of improving data throughput rate and reducing the number of data replication times

Active Publication Date: 2011-07-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This conventional method of memory transfer processing is simple when the amount of data is normal, and the CPU resources consumed will not become a system bottleneck. However, under the performance index of 60MB / S, two repeated data transfers will reach 120MB / S memory handling waste, this process will inevitably lead to a reduction in data transmission throughput

Method used

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  • Rapid transmission method of printing equipment data
  • Rapid transmission method of printing equipment data
  • Rapid transmission method of printing equipment data

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Embodiment Construction

[0035] The implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] figure 1It is a schematic diagram of printing device data transmission in the prior art. see Figure 2-5 , the realization of the method of the present invention also adopts the overall framework of the prior art, promptly is made of data input unit, data data processing unit and data output unit, figure 2 and Figure 5 On the basis of reflecting the process, the data input unit and the data output unit are also indicated respectively.

[0037] The concrete operation process of the inventive method is as follows:

[0038] The external data packet is received from the Gigabit Ethernet hardware interface 210. After receiving a complete Ethernet packet, the hardware driver layer 220 is notified of the arrival of a data packet through a hardware interrupt mode, and the hardware driver layer responds to the interrupt request and se...

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Abstract

The invention discloses a rapid transmission method of printing equipment data. By adopting the characteristic packet separating method, printing data occupying the vast majority of band width can be directly sent into for caching by a TCP tunnel, thereby improving the transmission efficiency; by adopting the memory mapping method, the zero copy of the data can be achieve between an application software layer and an operating system layer, and the strategy can be used twice in a data input unit and a data output unit, thereby improving the data throughput rate greatly and achieving the performance index of 60MB / S.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to a data transmission method of printing equipment. Background technique [0002] With the development of digital printing machines, the original printing speed and precision have been developed rapidly. In order to match the printing speed of high-speed nozzles, a system with faster processing speed and stronger transmission capacity is required to provide high-speed printing. print image data. [0003] The printing image data is generally stored on the PC system. In order to realize the high-speed printing task, it is necessary to realize the high-speed transmission of the printing data from the PC system to the digital printing machine. The high-speed digital printing machine adopts a dedicated input interface, and the general PC system cannot provide this input interface, so it is necessary to implement a high-speed data transmission processing system, which realizes the conve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/12H04L29/06
Inventor 陈耀武洪丰
Owner ZHEJIANG UNIV