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Conference on Optics and Communication Technology最新文献

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Propagation characteristics of the space-time complex variables Airy-Laguerre-Gaussian wave packets 时空复变Airy-Laguerre-Gaussian波包的传播特性
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653682
Xiaping Zhang
{"title":"Propagation characteristics of the space-time complex variables Airy-Laguerre-Gaussian wave packets","authors":"Xiaping Zhang","doi":"10.1117/12.2653682","DOIUrl":"https://doi.org/10.1117/12.2653682","url":null,"abstract":"The space-time complex variables Airy-Laguerre-Gaussian wave packets are the Laguerre-Gaussian wave packets, which is their intensity distribution at the cross section showing as the complex variables Laguerre-Gaussian functions in the space domain, are modulated by the Airy pulses in the time domain. The method of separating variables is a mathematical method to obtain this solution. According to solving the (1+3)D Pxi-axis equations, the analytical solution of the space-time complex variables Airy-Laguerre-Gaussian wave packets in free space has been accessed. When the initial incident power of the space-time complex variables Airy-Laguerre-Gaussian wave packets is not equal to the critical power, the wave packets’ width will fluctuate periodically. Poynting vector reveals the essence of this phenomenon.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125026448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Propagation characteristics of space-time Airy-Ince-Gaussian beams in highly nonlocal nonlinear media 时空Airy-Ince-Gaussian光束在高度非局部非线性介质中的传播特性
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653686
Xiaping Zhang
{"title":"Propagation characteristics of space-time Airy-Ince-Gaussian beams in highly nonlocal nonlinear media","authors":"Xiaping Zhang","doi":"10.1117/12.2653686","DOIUrl":"https://doi.org/10.1117/12.2653686","url":null,"abstract":"The space-time Airy-Ince-Gaussian Beams are the Ince-Gaussian beams, which is their intensity distribution at the cross-section showing as the Ince functions in the space domain, are modulated by the Airy pulses with initial velocity in the time domain. The solutions of the space-time Airy-Ince-Gaussian functions basing on the initial velocity, the power ratio about the critical power and the input power, and the ellipticity have been accessed according to solving the cylindric coordinates’ (1+3)D Schrödinger equations in Highly Nonlocal Nonlinear Media. Their propagation characteristics are studied in the paper. According to the incident power of the beam is not equal to the critical power, the beam width changes periodically when the beam is propagating. The Poynting vector of the propagating beams at cross section reveals the essence of physics.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124540666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A method of measuring human body size based on image processing 一种基于图像处理的人体尺寸测量方法
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653539
Chunyan Liu, Junwei Du, Zibo Wu, Yangcheng Wang, Suhang Cai, Yan Dai, Jianwei Wang
{"title":"A method of measuring human body size based on image processing","authors":"Chunyan Liu, Junwei Du, Zibo Wu, Yangcheng Wang, Suhang Cai, Yan Dai, Jianwei Wang","doi":"10.1117/12.2653539","DOIUrl":"https://doi.org/10.1117/12.2653539","url":null,"abstract":"In view of the current higher requirements for comfort issues such as adaptive car seat adjustment, human size measurement technology is gradually improving in China. In this paper, combined with the non-contact measurement technology method, a body size measurement system based on image processing is proposed. It combines image processing methods such as open pose human pose estimation and edge detection, and achieves the advantages of simple algorithm, fast processing speed and high accuracy, the error rate is 0.19125, to prepare for the self-adaptive car seat adjustment system, and also to provide a reliable reference for further improving the measurement method of human body size.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117242557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Propagation characteristics of complex variables Airy-Gaussian wave packets within free space 复变量airy -高斯波包在自由空间中的传播特性
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653692
Xiaping Zhang
{"title":"Propagation characteristics of complex variables Airy-Gaussian wave packets within free space","authors":"Xiaping Zhang","doi":"10.1117/12.2653692","DOIUrl":"https://doi.org/10.1117/12.2653692","url":null,"abstract":"The Airy-Gaussian wave packets are the Airy wave packets modulated by the Gaussian wave packets. Basing on the separating variable method, the analytical solution has been accessed according to solving the paraxial beam equation in cylindric coordinates in free space. The Airy-Gaussian wave packets with complex variables are combing the Airy function with the complex variables and the Gaussian beams. The propagation characteristics of the complex variables Airy-Gaussian wave packets are studied. The complex variables Airy-Gaussian wave packets will rotate with the increase of propagating distance. Poynting vector reveals the essence of this phenomenon.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116372195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An improved LEACH protocol based on energy weight and distance weight 基于能量权和距离权的改进LEACH协议
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653547
Zexuan He, Xinyu Liu, Haoyu Shan, Chenrui Zhang
{"title":"An improved LEACH protocol based on energy weight and distance weight","authors":"Zexuan He, Xinyu Liu, Haoyu Shan, Chenrui Zhang","doi":"10.1117/12.2653547","DOIUrl":"https://doi.org/10.1117/12.2653547","url":null,"abstract":"LEACH algorithm is a classic wireless sensor network protocol. Prolonging the network lifetime has always been its core proposition. In the light of the randomness of cluster head election in LEACH protocol, LEACH-OR protocol adds weight factor Q with distance weight and energy weight to the original threshold formula to extend the network lifetime. This paper analyzes the shortcomings of classic LEACH protocol and proposes an improved protocol LEACH-IMPROVED based on LEACH-OR. The author turns weight factor Q into function to balance the distance weight and energy weight so that nodes with much more energy and a suitable distance can be selected as cluster heads, and the distance weight and energy weight are changing all the time according to the residual energy. The simulation shows that the lifetime of LEACH IMPROVED protocol is extended by 30%~40% when compared with LEACH algorithm, and the energy efficiency is improved.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133597803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on distributed grating array stress sensing monitoring technology in coal mine 煤矿分布式光栅阵列应力传感监测技术研究
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653466
Zhongkui Li
{"title":"Research on distributed grating array stress sensing monitoring technology in coal mine","authors":"Zhongkui Li","doi":"10.1117/12.2653466","DOIUrl":"https://doi.org/10.1117/12.2653466","url":null,"abstract":"In view of the problems existing in the current electronic mine pressure monitoring equipment, such as distorted interference data, many transmission cables, short power supply distance and so on, the optical fiber mine pressure monitoring equipment has the problems of small capacity, high cost, monitoring blind areas and so on. Through the research of key technologies such as distributed grating array stress sensing technology, distributed grating array sensing multiplexing and network technology, distributed grating array sensing demodulation technology, combined with the mine pressure theory, optical fiber communication technology and computer technology, the project develops the grating array stress sensing device and grating array sensing demodulation substation suitable for the requirements of coal and rock stress measurement. Combined with the monitoring and early warning platform software, a real-time, remote and online distributed grating array stress monitoring system is formed.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133751115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on the feasibility of object detection technology in airport airspace control 机场空域管制中目标检测技术的可行性研究
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653839
Bin Guo, Guoliang Zhai, Xiao Wang, Feng Wang, Peng Wei, Ke Sun
{"title":"Research on the feasibility of object detection technology in airport airspace control","authors":"Bin Guo, Guoliang Zhai, Xiao Wang, Feng Wang, Peng Wei, Ke Sun","doi":"10.1117/12.2653839","DOIUrl":"https://doi.org/10.1117/12.2653839","url":null,"abstract":"The rapid development of the civil aviation field has made people pay more attention to aviation safety. This paper discusses the application of target detection technology in airport airspace control. Airport airspace control includes many aspects, and this article focuses on bird strike prevention. For the target detection technology, we selected three target detection technologies, HOG+SVM, RCNN and YOLO for discussion and comparison. Considering the application scenarios and real-time requirements of bird strike prevention, YOLO was finally selected for feasibility experiment. Experiments with YOLO got pretty good results, YOLO can successfully detect flying birds in the airport scene. This proves the feasibility of the application of object detection technology in airport airspace control.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131300080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new PSO-ABC wireless sensor network coverage optimization algorithm 一种新的PSO-ABC无线传感器网络覆盖优化算法
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2654067
Mingkun Fan, Zimo Jia, Yitong Wang, Zhiyuan Zuo
{"title":"A new PSO-ABC wireless sensor network coverage optimization algorithm","authors":"Mingkun Fan, Zimo Jia, Yitong Wang, Zhiyuan Zuo","doi":"10.1117/12.2654067","DOIUrl":"https://doi.org/10.1117/12.2654067","url":null,"abstract":"Based on the development of wireless communication technology, wireless sensor network (WSN) composed of micro sensors has been widely used. Aiming at the problems of uneven node distribution and energy consumption in wireless sensor networks, A PSO-ABC hybrid algorithm based on accurate perception model is proposed in this paper. The algorithm takes network coverage and energy consumption of sensor node deployment as objective optimization functions, introduces virtual force -- Molecular force, and adaptively adjusts the inertia weight of the algorithm, which can significantly improve the diversity of particles and network coverage. The communication of information by PSO-ABC makes it as efficient as possible to jump out of the local optimality and improves the convergence accuracy of the algorithm. Information exchange mechanism is used to exchange search information to avoid local optimization. On this basis, our objective optimization is to improve network coverage and reduce energy costs. By using the proposed PSO-ABC hybrid algorithm to search for the optimal deployment scheme of nodes, coverage blind areas and coverage redundancy in the network can be significantly avoided.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134376587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on binocular stereo vision based on interactive channel and its application in power intelligent emergency repair 基于交互通道的双目立体视觉及其在电力智能抢修中的应用研究
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653543
Bian Minjie, zheng qinan, Chen Cheng
{"title":"Research on binocular stereo vision based on interactive channel and its application in power intelligent emergency repair","authors":"Bian Minjie, zheng qinan, Chen Cheng","doi":"10.1117/12.2653543","DOIUrl":"https://doi.org/10.1117/12.2653543","url":null,"abstract":"Recently, the whole society has had higher and higher requirements for the stable operation of the power system, and the safety of power production is directly related to people's daily life order and the development of the national economy. How to build a power system security framework to repair problems in the power system in a timely manner, and how to improve the accuracy of remote live work while improving work efficiency have become the main needs of the development of the power industry. In the practical application scenario of power repair, this paper obtains the target coordinates through the line laser scanning binocular stereo vision technology of the interactive channel and completes the preparations for the binocular stereo vision including image preprocessing, camera calibration, and stereo correction. The stereo vision algorithm is used to improve the efficiency of electric power intelligent emergency repair operations, and the advantages of binocular stereo vision algorithm in the application of electric power emergency repair are illustrated by comparing the accuracy of different algorithms through experiments.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"12473 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129482055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research development of temperature and heart rate monitoring based on flexible and wearable medical devices 基于柔性可穿戴医疗设备的体温和心率监测研究进展
Conference on Optics and Communication Technology Pub Date : 2022-11-18 DOI: 10.1117/12.2653496
Yunqi Zhang, Jingbo Zhang, Xiaobing Sun, Chunxiang Xing, Daqiang Hu, Jingzhi Yin
{"title":"Research development of temperature and heart rate monitoring based on flexible and wearable medical devices","authors":"Yunqi Zhang, Jingbo Zhang, Xiaobing Sun, Chunxiang Xing, Daqiang Hu, Jingzhi Yin","doi":"10.1117/12.2653496","DOIUrl":"https://doi.org/10.1117/12.2653496","url":null,"abstract":"Body temperature and heart rate are two important parameters of human vital signs. Real-time monitoring of them can provide effective treatment schemes for medical staff. Flexible wearable medical devices have attracted much attention because of their light weight, portability, excellent electrical performance and high integration. This paper analyzes and studies the realization of body temperature and heart rate monitoring by flexible wearable medical devices, gives the principle of measuring body temperature with commonly used flexible thermistor materials and the development of ECG technology for measuring heart rate, points out the challenges faced by accurate measurement, and finally prospects its development trend in the future.","PeriodicalId":253792,"journal":{"name":"Conference on Optics and Communication Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126958168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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