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13 results on '"Wang, Zuliang"'

1. Attendance System Based on Face Recognition Technology

Author

Shaofei Wang, Kexin Ma, Hongtao Yu, Wang Zuliang, and Ting Zhang

Subjects
Process management, Artificial neural network, Work (electrical), Computer science, Scale (social sciences), Attendance, Attendance management, Facial recognition system, Convolutional neural network, Graduation
Abstract

With the continuous advancement of industrialization, various enterprises have also emerged. With the continuous expansion of the scale of enterprises, personnel attendance management has also become an important part of the standardized and healthy development of enterprises. Initially, the company adopted the traditional card punching method. This method can achieve employee attendance to a certain extent, but it has problems such as easy loss of cards and inconvenient attendance. The use of face recognition technology can be very convenient and easy to realize the statistics of employee attendance. Therefore, this graduation project decided to design a get off work attendance system. By using Tensor flow as the back-end Keras to build a convolutional neural network, and then using the neural network to realize the face recognition of employees. When the recognition is over, this graduation project is linked to a SQL database to record the recognition results. In addition, this graduation project also adds the functions of adding, deleting, modifying, and searching to the system to edit the SQL database to facilitate entry, deletion, modification, and retrieval of employee information.

Published
2021

2. Intelligent Storage Device for Chinese Medicinal Materials

Author

Wang Zuliang, Ting Zhang, Hongtao Yu, and Shaofei Wang

Subjects
Computer science, business.industry, Air conditioning, Improper storage, Storage management, business, Computer hardware, Material storage, Data transmission
Abstract

This device introduces a storage method for Chinese medicinal materials, and specifically relates to the field of medicinal materials storage management. The air conditioner of this device is connected to the storage box through a pipe. The storage box is equipped with an intelligent sensing module, which contains a variety of sensors for collecting environmental information in the storage box. The main information processing module is communicatively connected to a data transmission module, which is communicatively linked to the server, and the server is communicatively connected to the intelligent air conditioning system. In order to solve the defects in the existing storage methods, this device reduces the waste rate of Chinese medicinal materials due to improper storage and uncontrollable manual operation, Thus, this design provides an intelligent storage device of Chinese medicinal materials.

Published
2021

10. Second-Order Polarization Rotating Frequency-Selective Surface.

Author

Lin, Baoqin, Huang, Wenzhun, Lv, Lintao, Guo, Jianxin, Wang, Zuliang, and Zhu, Rui

Subjects
FREQUENCY selective surfaces, INSERTION loss (Telecommunication), TRANSMITTING antennas, BANDPASS filters
Abstract

In the communication, a monopolarized and a dual-polarized polarization-rotating frequency-selective surfaces (PR-FSSs) are designed successively. The two PR-FSSs are both a three-layer aperture-coupled-patch periodic structure. When they are interpreted as an array of antenna-filter-antenna (AFA) modules, because polarization directions of the upper and lower antennas in each AFA module are orthogonal to each other, they can both realize polarization rotation and frequency selection at the same time. The monopolarized PR-FSS is designed first, its relative bandwidth reaches up to 13.58% although there is a maximum insertion loss of 0.8 dB in the band. The final-designed dual-polarized PR-FSS can be regarded as the combination of two orthogonal monopolarized one, so it can work under both $x$ - and $y$ -polarized incidences, its relative bandwidth is still up to 9.81%; moreover, the maximum insertion loss in the passband is very low. The performances of the two PR-FSSs are both verified by simulations and experiments. [ABSTRACT FROM AUTHOR]

Published
2021
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11. Lifespan Analysis for Redundant Array of Independent Module Based Solid State Drives.

Author

Fan, Lingyan, Luo, Jian-Jun, Mei, Yuehui, Rutt, Troy, and Wang, Zuliang

Subjects
RAID (Computer science), INTEGRATED circuits, FIELD programmable gate arrays, MICROCONTROLLERS, SOLID state electronics
Abstract

Solid state drives (SSD) are usually built using a NAND flash memory array. An SSD controller manages datastreams stripped to multiple flash memory channels. The device could be regarded as a level-0 structure of redundant array of independent disk (RAID), the technical term for a disk array system. This typical SSD controller architecture is called an intrinsic RAID (iRAID). An iRAID-based SSD controller has to execute sophisticated wear-leveling algorithms and dynamically calculate the lifespan of each flash memory chip as well as run error correction coding. redundant array of independent module (RAIM) was proposed to simplify the SSD controller by applying a group of standardized memory modules instead of raw flash memory chips. One of the widely recognized memory modules is the embedded multi-media card (eMMC) module, which is a small component, typically with a ball grid array package, and is found in consumer applications. In the paper, we have described the methods needed to optimize wear-leveling in an array of eMMC modules and deduced a formula to evaluate and optimize the lifespan of an RAIM-based SSD. A silicon SSD controller was implemented to verify the analysis. The positive result revealed that the lifespan of the RAIM-based SSD could be improved in consumer-grade eMMC modules. [ABSTRACT FROM AUTHOR]

Published
2018
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