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Research of Embedded Remote Video Monitoring System Based on iMX6DL
Zhongfu Tian,Yinglai Huang 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.11
With the development of information technology, the video surveillance has been widely used in different fields. The real-time video monitoring and controlling system adopts embedded technology, video decoding technology, communication and network technology and some other technologies. Therefore, there is much significance to research it. In this paper the Cortex-A9 is used as core hardware platform to develop the embedded remote video monitoring system, and its key technology is also researched. Based on the research of domestic video monitoring system, and combining with the practical application the overall hardware and software design of the embedded remote video monitoring system is presented. The hardware part of this system includes the microprocessor iMX6DL based on the Cortex-A9 framework which produced by FeiLing company and the USB camera based on the UT_USB_CAMERA module. The software pate includes the transplantation of the embedded operating system Linux, the development of streaming media server, the constructing of website and the writing the payer widget to obtaining a system which has integral real-time monitoring function. The test manifests that the system design is reasonable and stable, it also can be extended to Smart Home, Smart City, Internet of Vehicles and other applications fields.
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Research and Design of Embedded Timber Drying Monitoring System Based on ARM9
Zhongfu Tian,Yinglai Huang 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.3
Wood drying is one of the most important processes in wood production and processing. The purpose of the study is to improve the level of automation of small and medium-sized wood drying enterprises and to improve the drying efficiency and quality. Using Visual Basic6.0, this article completes the development of host computer monitor software, which not only monitors on-site equipments, but also integrates the knowledge base of local wood drying experts and remote expert server. Furthermore, micro-processor is embedded into the slave computer which is of low energy consumption, fast operation and high reliability as its main controller. This system has been applied in Harbin timber factory, and the results show that the system is reliable, low cost, and has certain commonality. Therefore, the results of this study show that this method can serve as a reference and promote the upgrading and transformation of the automation level of wood drying enterprises.
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Zhen Zhang,Hui Hua Huang,Xiang Ma,Guanghui Li,Yong Wang,Guo Sun,Yinglai Teng,Rian Yan,Ning Zhang,AiJun Li 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.53 No.-
A new and efficient technique is described for the production of diacylglycerols (DAGs) by the esterification of oleic acid with glycerol catalyzed by diatomite-loaded SO4 2/TiO2. DAGs show some potential health benefits compared to triacylglycerols, and also can be used to produce the novel industrial plasticizer epoxy fatty acid methyl ester in material science. Diatomite-loaded SO4 2/TiO2 catalyst was prepared and characterized, and the selected conditions for the synthesis of DAGs were determined to be: reaction time = 6.0 h, temperature = 210 C, catalyst loading = 0.1% of the oleic acid weight, and mass ratio of oleic acid to glycerol = 2:1. Under these conditions, DAGs yield reached 59.6% with a purity of 69.6% after a one-stage molecular distillation. Diatomite-loaded SO4 2/TiO2 as a solid catalyst could be recycled and reused with high catalytic efficiency. Under the same conditions, diatomite-loaded SO4 2/TiO2 showed a better catalytic performance than the commercial solid acid SO4 2/ZrO2-Al2O3. Based on this, a two-step reaction method for the production of DAGs was performed and provided a yield similar to the one-step method (58.3% vs. 59.6%), but with a shorter reaction time (4 h vs. 6 h). It is concluded that a two-step reaction method could be a better alternative to the one-step production of DAGs in the presence of diatomite-loaded SO4 2/TiO2.
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Research of Forest Fire Smoke Recognition Method Based on Gray Bit Plane Technology
Xiaofang Sun,Liping Sun,Yaqiu Liu,Yinglai Huang 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.4
Apply the separation principle of the physical contradictions in TRIZ into the simulation of forest fire smoke and propose a forest fire smoke recognition algorithm based on gray bit-plane(short in FFSGBP) to change the problem of identifying the smoke into the analysis on the bit-plane images. To get eight images of moving smoke, the separation process on smoke moving images is necessary; use high-diagram image (the 7th,the 8th image) to extract contours, and extract the contour of the remaining images in the same position. Superimpose the information extracted, get the smoke model. By adding motion operators to the original image, we could simulate the motion of discrete smoke better, by using mean filter, we could reduce the influence of noise, and it can improve the reliability of the experiments. The results show that compared with the traditional method based on HSI model, the proposed algorithm can achieve the fire smoke detection quickly and obtain the contour model of the smoke inside efficiently and accurately.
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