Electronics Science Technology and Application (E-Journal)
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Pneumatic Manipulator Control System Based on PLC
Get PDFThe main purpose of this manipulator is to transport small cargoes. The traditional hand claw is used to grasp goods. PLC control system is mainly used for operation. At the same time, PLC is used to realize the automatic/manual control of the manipulator
Ubiquitous Intelligent Floor Combined Positioning Method Based on Fusion of Bluetooth Signal and Barometer
Get PDFOf the indoor floor location and complex environment, this paper, we research the Bluetooth signal attenuation of signal in multi-storey buildings, was proposed based on the Bluetooth signal and the barometer of fusion in intelligent floor combination positioning method, according to the structure of the building and receive the number of AP switch under different indoor environment using the matching algorithm, to adapt to a wider range and higher accuracy. In the case of less AP, the experimental results show that the static floor positioning accuracy reaches 95% in different building environments
Research on the Concept and Application of 5G wireless Communication Technology
Get PDFAt present, our daily life is greatly influenced and shaped by the rapid development of social economy and various technologies. And we have benefited a lot from the application of communication technology, which has incrementally enriched our life. Specifically, it provides users with more stable and convenient communication services, and enhances the interactions and communications between people. The concept of 5G wireless communication technology includes the innovative development of 5G wireless communication technology and its application in various fields. However, it has not been widely used by various enterprises, and has not formally entered people’s life. The development of 5G wireless communication technology will affect the way people live and work to a certain extent. This paper will briefly analyze the concept and application of 5G wireless communication technology in order to promote the further development of 5G wireless communication technology
Influence of different angle of spoiler fin at specific position on vehicle aerodynamics
Get PDFThe significance of Aerodynamic Research on automobile is not only to improve the high-speed driving stability and crosswind stability, but also to reduce vehicle fuel consumption. As an additional device, the rear spoiler has shown a good effect in the external components of the automobile, so the reasonable design and assembly of the rear spoiler is particularly important. The rear spoiler with proper height can effectively reduce the air drag coefficient and lift coefficient. This paper mainly uses the software ICEM, Fluent and Post in ANSYS to analyze the influence of different angles of the specific spoiler on the aerodynamic performance of the vehicle. In the software experiment, I adjusted the spoiler angle and car speed and I found that in a certain range, the downforce generated by the spoiler is proportional to the angle between the spoiler and the ground
Design of Peak Current Mode Synchronous Buck DC-DC Converter
Get PDFIn this article, a design scheme of peak current mode synchronous buck DC-DC converter is proposed based on synchronous rectification technology. The specific design scheme of the DC-DC converter is described from the overall structure design of control circuit, key circuit design and slope compensation. At the same time, the whole circuit simulation analysis of the DC-DC converter shows that the DC-DC converter has high performance
Analysis of OAM Mode Purity in Phased Array Antenna
Get PDFIn this paper, the orbital angular momentum of different modes in electric field is decomposed, and the definition of purity of OAM mode in OAM antenna are proposed. Based on the purity theory, the purity of circular array is derived. And the effects of different parameters on the purity are analyzed. An intuitive and quantifiable dimension for comparing the OAM performance in phased array antenna is provided in this paper
Pseudo Random Number Coding for Lift Car Position Sensing
Get PDFAiming at the disadvantages of the traditional positioning for lift car applications, a novel binary bar coding and sensing technology is presented in this paper. It studies the relationship of the addressable length and the number of digits to be sensed. A more systematic approach is demonstrated to generate the pseudo random code more efficiently than the random sorting method used in the example case. Finally, a function of vector distance is developed to measure the difference of any two groups of the digits to be sensed along the complete code sequence. By searching the maximum of the vector distance, the optimal sequence can be achieved to reduce the chance of decode error
Studies on Computer Intelligent Image Recognition Algorithm and Technology
Get PDFWith the rising level of economic development in China year by year, there have been obvious technological advances in many fields of science and technology, including the computer field. Relevant Chinese ministries attach importance to computer technology. The technology has been updating and developing all the time while researchers in the computer field are also constantly improving their researches on the intelligent technology in order to study and explore more new things. One can better be recognized with the current computer intelligent technology, even in an environment that is difficult to identify. In this article, the algorithm and application of computer image recognition technology is studied and analyzed to lay a theoretical foundation for its further development and application
Bounded and Continuous Linear Operators on Linear 2-Normed Space
Get PDFIn this article, at first basic definitions and properties of linear 2-normed space are presented. Then the author defines bounded operator as an introduction to defined norm of an operator. In addition, the definition of continuous operator on a linear 2-normed space is given. This article proved an operator Γ from a linear 2-normed space (U,〖||.||〗_U) into a linear 2-normed space (V, 〖||.||〗_V) is bounded operator if and only if Γ is continuous operator
The Effect of Set Partitioning in Hierarchical Trees with Wavelet Decomposition Levels Algorithm for Image Compression
Get PDFThe transfer and storage of images is done through compression technology using various transformations to find suitable transformations for image analysis and compression, wavelet based images are analyzed with image compression technology, which is necessary for channel image transmission. The purpose of this article is to determine the appropriate wavelengths for compressing images by recording the parameters that are created by compressing and using an appropriate compression method. The compression method Set Partitioning in Hierarchical Trees (SPIHT) is used to obtain a better compression of the image with a high compression ratio using different wavelets and to compare the results that the techniques were implemented in the Matlab program through the results such as basic criteria for the compressed image quality scale