Study of Visual Information Acquisition Technology based on AGV Robot

Visual information acquisition is an important component of the AGV robot. The system adopts STM32F4 embedded application of the ARM Cortex-M4 kernel as the main control module,using shift algorithm to finish on a specific color piece of target tracking. For multi-sensor fusion of three methods,quaternion method is used to correct the attitude,the stability of AGV robot visual information acquisition and image clarity are improved.

Progressing of Quantum Tomography for Quantum Information Acquisition

In this paper we review a number of recent developments in the study of quantum tomography which is one of the useful methods for quantum state estimation and quantum information acquisition, having sparked explosion of interest in recent years. The quantum process tomography is also analyzed. At the same time, some success experiments and applications of quantum tomography are introduced. Finally, a number of open problems and future directions in this field are proposed.

Configuration information acquisition and matching in self-reconfiguring process of modular self-reconfigurable robots

Configuration information acquisition and matching are two important steps in the self-reconfiguringprocess of self-reconfigurable robots.The process of configuration information acquisition was introduced,and a self-reconfiguring configuration matching strategy based on graded optimization mechanism was pro-posed.The first-grade optimization was to search common connection between matching scheme and goalconfiguration.The second-grade optimization,whose object function was constructed in terms of configu-ration connectivity,was to search common topology according to the results of the first-grade optimization.The entire process of configuration information acquisition and matching was verified by an experiment andgenetic algorithm (GA).The result shows the accuracy of the configuration information acquisition andthe effectiveness of the configuration matching method.

Wireless Power Generation Strategy Using EAP Actuated Energy Harvester for Marine Information Acquisition

The energy of a radio wave is reduced through the dispersion, the refraction and the absorption because the medium transferring the vibration of a radio wave is the seawater. In the end the reduced energy of a radio wave causes the reduced transmitting length for communication, the long postponed communication and the frequent error. The subsea communication for the marine environment monitoring which must overcome the weak points of the RF wave and the most practical method for the marine sensor network realization is to use the acoustic wave method, but the energy consumption rate of the acoustic wave communication method is about 100 times greater than the one of the RF wave method. So, the power supply of the sensor node in the marine sensor network system is the most important interest field. In this study, the sample which consists of an acrylic elastomer(VHB4905 film from 3M), conductible carbon grease(from MG chemical) and electric wire for the basic study of an energy harvesting strategy and technique using EAP actuator was fabricated, and the conductible carbon grease was used for an electrode. The characteristics of the fabricated sample were analyzed through the experiment. We also mixed carbon grease with aluminum powder for conductibility improvement, and the effect of the mixed electrode was confirmed through the conductivity measurement.

An Efficient Task Scheduling Method for the Unified Interface Platform of the Electric Information Acquisition System

Due to the large and frequent static data interaction between the Electric Information Acquisition System and the external business systems,researching on using limited server sources to do an efficient task scheduling is becoming one of the key technologies of the unified interface platform.The information interaction structure of the unified interface platform is introduced.Task scheduling has been decomposed into two stages,task decomposition and task combination,based on the features(various types and dispersed)of large static data.The principle of the minimum variance of the subtasks data quantity is used to do the target task resolving in the decomposition stage.The thought of the Greedy Algorithm is used in the task combination.Breaking the target task with large static data into serval composed tasks with roughly same data quantity is effectively realized.Meanwhile,to avoid the situation of the GA falling into the local optimal solution,an improved combination method has been put forward.Moreover,the new method creates more average composed tasks and making the task scheduling more effective.Ultimately,the effectiveness of the proposed method is verified by the experimental data.

Research on the Dynamic Evolution of Deformation Field and the Acquisition of Seismogenic Information Before Lijiang Earthquake With Ms7.0

By using the integral dynamic adjustment of the "segmentation rate," this paper processes the leveling repetition measurement data of the Dianxi(western Yunnan)area since the 1980s,makes the fitting of the velocity surface for vertical deformation with multi-surface function,and splits information of the vertical deformation field.The dynamic evolution of the deformation field and vertical deformation information norm-shear deformation,extension deformation,volumetric deformation,and quasi acceleration,which are the distribution characteristics of variation,are studied by using the information split before the Lijiang earthquake with MS7.0(February 3,1996)in the north of the Dianxi(western Yunnan)leveling network.The results indicate that in Dianxi(western Yunnan)area,the acute vertical differential movement of the large-scale deformation velocity high gradient belt and high information norm distribution in the Lijiang,Yongsheng,and its adjacent areas in the middle stage of the 1980s is the reflection

Correlational Study between the Information on English Middle Construction and Chinese EFL Learners'Acquisition of English Middle Construction

Less is known about the role that the information input may play in the acquisition of EMC,as such,the influence of the information input remains to be scrutinized.The present study,via quantitative analysis,aims to make a distinctive contribution to exploring this process.Four kinds of information on the six target English middle verbs were adopted:constraints on NP,constraints on AP,examples and all information on EMC.The results show that under the same conditions,examples can meet the demand of user's productive ability in a better way and help improve the production of the EMC.These findings are very informative for second language teaching and provide certain enlightenment for bilingual dictionary compilation.

Application of Information Processing Theory in Second Language Vocabulary Acquisition

Vocabulary acquisition is an intricate process,which has a close relationship with memory.In cognitive psychology,a large number of studies on memory system have been conducted based on the information processing theory,placing great value on second language learners’cognitive process.This study intends to probe into second language vocabulary acquisition from the perspective of information processing theory in hope to help learners acquire vocabulary more scientifically and efficiently.

Information gain based sensor search scheduling for low-earth orbit constellation estimation

This paper addresses the problem of sensor search scheduling in the complicated space environment faced by the low-earth orbit constellation.Several search scheduling methods based on the commonly used information gain are compared via simulations first.Then a novel search scheduling method in the scenarios of uncertainty observation is proposed based on the global Shannon information gain and beta density based uncertainty model.Simulation results indicate that the beta density model serves a good option for solving the problem of target acquisition in the complicated space environments.

Method of visional detecting MAG weld pool information

A theoretical analysis of the visional detecting weld pool information and image-getting mechanisms were presented. Four kinds of composite narrow-band filters based on three kinds of mechanism were adopted in consideration of short-circuiting transfer and spray transfer. After studying the ways for sensing the visional signals of the weld pool, the best filter window was obtained. From the window images with distinct weld pool area were acquired. In addition, image-getting mechanisms for passive light source to detect visional information of weld pool were explored, and then the characters of weld pool of MAG were analyzed.

Method of Carrier Acquisition and Track for HAPS

This paper emphasizes on the characteristics and schemes of carrier acquisition and track in high dynamic and high information-rate situation. Carrier acquisition model is analyzed theoretically and the design princi-ple of carrier acquisition is deduced and described clearly. An algorithm for carrier acquisition in high dy-namic and high information-rate situation is provided. This paper also proves the validity of the algorithm and design scheme in high dynamic and high information-rate situation.

灾难与重建中的信息力量——急性淋巴细胞白血病患儿家庭信息获取障碍与对策

因儿童罹患急性淋巴细胞白血病而遭受重创的家庭,往往难以及时获得足够的信息支持。深入研究这个群体的信息需求和信息行为,有望辅助医疗决策,拯救更多稚嫩生命,减轻病痛给家庭带来的恐惧、焦虑和无助,也能为信息职业者在该领域中发挥更大作用提供建议。文章对某相关群体进行历时两年的参与式观察,发现该群体面临着误导信息先入为主,信息来源良莠难判,需求多样、归因单一等信息获取障碍。为优化此类患儿家庭信息获取利用环境,需要公布权威信息、开放科研成果,创新科普资源、引导大众认知,打造信息平台、搭建沟通渠道,发挥图书馆功能、提供精细化健康信息服务。

遥感技术新进展赋能水利行业应用

随着遥感技术的不断发展和水利信息化进程的加快,水利遥感有了飞速的发展,与水利现代化发展同步。目前,遥感技术在水利行业的应用范围非常广,在为水利高质量发展提供有力支撑和强力驱动的数字孪生水利建设中发挥了重要的作用。近十多年来,快速发展的遥感技术为提升水利遥感应用能力提供了强有力的支撑,具体表现在数据源的丰富化和多源化、数据获取的速度和效率显著提升、定量估算与反演精度大大提高、专题信息可获得性不断增加、数据处理和信息提取的智能化水平取得长足进步。介绍了遥感技术发展赋能水利遥感应用领域的现状和前景展望,为遥感技术赋能水利新质生产力提供参考。

量子传感(Ⅰ):基础理论与方法

作为当前三大核心量子技术之一的量子传感技术,是量子信息感知与获取的重要物理实现基础,也是发展历史最悠久、技术成熟度最高、实际应用范围最广、潜在应用最多的量子技术。文章是量子传感的第一部分,主要介绍量子传感的基础理论与方法。首先从理论上总结量子传感的定义及基本概念,指出量子传感“量子性”的由来,并从实际应用的角度,提出量子传感的技术外延以及分类依据;接着详细介绍了有关量子传感的基本实现架构,以及描述量子传感性能的核心技术指标,归纳了用于提高量子传感性能的物理原理及技术方法。

制造商不同研发模式下零售商信息获取策略研究

在激烈的市场竞争中,制造商需要不断进行产品研发才能保持其核心竞争力,而下游零售商在关注产品研发计划的同时也需要时刻掌握消费者偏好情况。为研究制造商不同研发模式下零售商的最佳信息获取策略,本文基于质量提升和成本削减两种研发模式,构建了不同策略组合下的博弈模型。研究发现:无论制造商是否进行研发投入,零售商都仅在信息获取成本低于相应的阈值时才会获取消费者偏好信息,但制造商的研发投入放宽了零售商获取信息的费用阈值,促进了其进行信息获取的意愿。同时,制造商研发模式的选择受到投资系数的影响,当质量投资系数较小而成本投资系数较大时,制造商选择质量提升研发模式,反之,制造商选择成本削减研发模式。最后,通过数值算例表明,零售商获取信息有益于消费者剩余和社会福利的提升。

媒体报道如何影响并购重组知情交易:合流还是监督?

媒体报道既可能发挥积极的外部监督作用制约知情交易,也可能受到操纵而被信息知情人利用。本文收集2009—2022年A股上市公司并购重组数据,检验事前媒体负面报道倾向对并购重组中知情交易程度的影响。研究结果表明,并购重组首次公告日前媒体负面报道倾向越高,知情交易程度越低;媒体会通过增加诉讼风险和声誉渠道发挥治理作用。进一步分析表明,良好的公司治理环境能够强化媒体负面报道倾向对知情交易的影响;媒体发挥的治理功能在国有企业中相对较弱。事前分析师预测会提升市场整体知情交易水平并弱化媒体的功能。从媒体类型来看,网络媒体对于知情交易的约束作用大于纸媒。此外,媒体对知情交易的抑制效果在480日后不再存在。本研究对于发挥媒体监督作用、提升知情交易监管效率、保护投资者合法利益、维护资本市场公平具有一定的借鉴意义。

基于深度学习的智能除草视觉导航方法研究及实现

该文基于深度学习提出了一种智能除草视觉导航方法,通过搭建硬件系统,用于采集农田信息和导航控制。该模型通过对实时图像数据进行处理和分析,能够准确地识别出杂草并实现导航控制,从而实现智能除草的目标。试验结果表明,该文提出的方法在不同场景下都具有较高的识别准确率和导航精度,具有良好的实用性和推广价值。

政府治理对农户宅基地扩张意愿的影响机制研究

治理农村在县域城镇化过程中出现的宅基地扩张现象,对于促进城乡融合发展、提高农村土地资源配置效率和实现共同富裕等具有重要意义。基于湖南省1316户农户样本数据,结合OLS模型和中介模型研究地方政府治理能力对农户宅基地扩张意愿的影响及机制。结果表明:地方政府治理能力对农户宅基地扩张意愿有显著的负向影响,城镇化水平在地方政府治理能力影响农户宅基地扩张意愿过程中发挥了完全中介作用;农户信息获取能力负向调节地方政府治理能力与农户宅基地扩张意愿之间的关系。因此,地方政府应提升治理能力、协调好农户住房与经济发展之间的关系、引导集中居住等,改善农户宅基地不断扩张的现象。