7 Papers
12 Citations
Qin Xiaofei is an academic researcher from University of Shanghai for Science and Technology. The author has contributed to research in topics: Synchronous motor & AND gate. The author has an hindex of 3, co-authored 7 publications.
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Papers
Online identification for permanent magnet synchronous motor based on recursive fixed memory least square method under steady state
Lu Hao,Yunkuan Wang,Yuan Yong,Jun Zheng,Hu Jianhua,Qin Xiaofei +5 more
- 26 Jul 2017
TL;DR: In this paper, an improved online identification method based on recursive fixed memory least square method is proposed to solve the problem of permanent magnet synchronous motor identification, where a full rank equation is firstly constructed based on the q-axis voltage model under steady state.
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Patent
Method for controlling asynchronous multi-nozzle collaborative printing
Wu Shaohong,Yunkuan Wang,Hu Jianhua,Wang Xinbo,Zheng Jun,Qin Xiaofei,Wang Shenhang +6 more
- 19 Mar 2014
TL;DR: In this article, a method for controlling asynchronous multi-nozzle collaborative printing is described, where a host machine printing engine program generates printing data and control information and the data and the control information are transmitted to a printing main board controller.
4
Patent
Large-scale distributed digital ink jet printing control device
Hu Jianhua,Yunkuan Wang,Wang Xinbo,Wu Shaohong,Zheng Jun,Qin Xiaofei,Lu Hao,Liu Na,Su Tingting,Zhang Haojian +9 more
- 01 Apr 2015
TL;DR: In this paper, a large-scale distributed digital ink jet printing control device which is used for controlling a large scale ink jet printer to carry out printing operation is presented, consisting of an industrial control computer, a plurality of real-time printing management modules, and a manifold of sprayer driving modules.
4
Patent
Nonsynchronous online dynamic data printing device with multiple nozzles
Wu Shaohong,Yunkuan Wang,Hu Jianhua,Wang Shenhang,Qin Xiaofei,Zheng Jun,Wang Xinbo +6 more
- 19 Mar 2014
TL;DR: In this paper, a nonsynchronous online dynamic data printing device with multiple nozzles is presented, where each nozzle is provided with to-be-sent data packet queues, and the data packets are grouped by fixed sizes and filled into data packets taken out of the to be-used data packet buffer pool.
2
Patent
Digital image color separation processing method
Hu Jianhua,Yunkuan Wang,Wang Xinbo,Wu Shaohong,Zheng Jun,Qin Xiaofei,Lu Hao,Liu Na,Su Tingting,Zhang Haojian +9 more
- 04 Mar 2015
TL;DR: In this paper, a digital image color separation method was proposed to reduce the contour effect and the manual structure in the printed products by means of the color separation process, which includes the following steps: S1, reading a digital document and converting the color space of the digital image document into CMYK color space; S2 reading the set color density curve parameters and conducting remapping correction on the digital document according to the color density curves parameters, S3 segmenting the corrected digital document to obtain channel data of different colors; S4 conducting raster image processing of noise
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