High resolution spectroscopy of scandium monohalides

This thesis reports the study of the molecular and electronic structure of scandium monohalides using the technique of laser ablation/reaction with supersonic free jet expansion used for producing the target molecules and laser induced fluorescence (LIF) spectroscopy for recording their electronic transition spectrum. The scandium diatomic molecules studied in this work were scandium monoiodide (ScI) and scandium monobromide (ScBr), which were produced by the reaction of Sc atoms with 2% CH3I and 2% C2H5Br gases seeded in Ar carrier gas, respectively. The LIF spectrum of the electronic transition of ScI and ScBr were recorded in the visible and near infrared spectral region between 613 and 854 nm. The analysis of the high resolution electronic spectra of ScI and ScBr yielded molecular constants and information of electronic structures. For all the transition bands observed, rotationally-resolved transition lines were fit to a theoretical model to retrieve molecular constants for both upper and lower electronic states. For the ScI molecule, seven vibrational bands of the D1П –X^1 Σ^+ system were recorded and analyzed. Accurate molecular constants for the v = 0 – 2 levels of the D^1П state and the v = 0 – 3 levels of the X^1 Σ^+ state were obtained. The equilibrium bond lengths, re (Å), for the electronic states of ScI were determined as follows: ScI X^1 Σ^+ D^1П r_e(Å) 2.6078 2.7146 For the ScBr molecule, three electronic transition systems were recorded and analyzed, which include six vibrational bands of the C^1 Σ^+– X^1 Σ^+ system, seven vibrational bands of the e^3Δ–a^3Δsystem and two vibrational bands of the d3Φ – a3Δ system. Rotationally resolved transition lines of both Sc79Br and Sc81Br isotopes were observed and analyzed. Least-squares fitting of the measured line positions yielded accurate molecular constants for the v = 0 – 2 levels of the X^1 Σ^+ state, the v = 0 – 3 levels of the C^1 Σ^+ state, the v = 0 and 1 levels of the d3Φ state and the v = 0 – 2 levels of both e3Δ and a3Δ states, respectively. The equilibrium bond lengths, re (Å), determined for electronic states of ScBr are given as follows: ScBr X^1 Σ^+ a^3Δ C^1 Σ^+ r_e(Å) 2.3806 2.4767 2.4776 A molecular orbital (MO) energy level diagram has been used to examine the electronic configurations giving rise to the different observed electronic states of ScI and ScBr. An attempt has been made to put the MOs of all the scandium monohalides under a single picture. A comparison of the molecular constants for the different electronic states of scandium monohalides indicates a weakening of the chemical bonding between the scandium atom and the halogen atoms down the group.published_or_final_versionChemistryDoctoralDoctor of Philosoph

Adaptive binary search algorithm for malicious user positioning in smart grid neighboring network

本发明涉及智能电网技术，具体地说是一种面向智能电网邻域网恶意用户定位的自适应二分查找算法。该方法是首先估计邻域网中恶意用户的最大值；在查找过程中，检测器根据已经检测到的恶意用户数目和仍然需要检测的用户总个数之间的关系，自适应地调整查找策略。当采用逐个查找策略时，检测器一次只检测一个用户；当采用二分查找策略时，检测器会同时检测多个用户，且检测的用户数目由已经检测到的恶意用户数目和仍然需要检测的用户数目共同决定。本发明是在考虑降低检测器布设成本的前提下，提出的一种面向智能电网邻域网恶意用户定位的自适应二分查找方法，它能在检测过程中，自适应地调整查找策略，缩短恶意用户检测时间

Low-cost and high-detecting efficiency bottle inversion/lid leakage detecting device and method of filling production line

本发明涉工业自动化检测技术，具体地说是一种低成本高检率的灌装生产线倒瓶/漏盖检测技术及装置。针对现有简易倒瓶检测装置功能缺陷以及复杂倒瓶检测装置检测盲区和成本高的问题，本发明设计一种结构简单且误检率较低的倒瓶和漏盖检测装置，本装置可以正确区分倒瓶和无瓶，且检测条件简单，不受传送带方向和速度、瓶子位置以及排列紧密程度等条件的限制，只要传送带上有一个瓶子经过，就可以准确检测出倒瓶以及是否漏盖，且误检和漏检的概率低。本发明装置的特点是整套装置没有复杂的电路和复杂的机械装置，结构简单、成本低，维护保养经济方便

Real-time USB storage device and real-time USB storage method for IMU (Inertial Measurement Unit) data

本发明提供了一种IMU数据的实时USB存储装置与方法。本发明装置包括IMU传感器(三轴陀螺仪、三轴加速度计、三轴磁力计)、实时时钟、GPS模块、USB主机控制器、微控制器以及供电/电压变换电路。本发明方法的步骤包括微控制器采集IMU传感器的数据、实时时钟的绝对时间、解算四元数、为IMU数据帧打入绝对时戳以及将处理后的数据通过USB主机控制器存储到U盘。本发明装置与方法同使用蓝牙、Zigbee等无线方式传输到上位机，或者板载E2PROM或FLASH进行存储后离线处理等方法相比，具有传输速率快、稳定性好、存储容量大、数据转移备份方便等优势

Device and method for simulating AGV communication mode

本发明涉及一种模拟AGV通信方式的装置及方法，装置包括：电源、嵌入式微控制器、以太网控制器及物理层芯片、USB桥接芯片、EEPROM等；方法包括：USB供电及通讯，微控制器根据USB或虚拟串口发来的指令控制以太网的参数、协议类型、发送数据开始与停止、发送数据间隔时间、发送数据长度等，同时具备接收数据能力，并进行数据处理、指令执行以及对接收数据量进行统计，EEPROM可使得设置参数等数据掉电可保存。该装置与方法可以在大规模网络应用中模拟AGV设备的通信方式，测试网络性能以及上位机控制调度软件功能，具有体积小、成本低、使用方便等多种优势

Dot-matrix material detecting and fetching indicating device and method

本发明涉及一种点阵式物料检测和取料指示装置及方法。本发明包括两部分功能：一是安装在被测物料架上的一套点阵式物料检测单元，实时扫描物料余量情况，如有缺料则产生告警并通过接口发送到无线节点，库房内多个物料架通过无线节点组成一张无线传感器网络，无线网络汇聚各节点数据并上送到上层服务器；另一部分是安装在物料架上的一套点阵式取料指示装置，当领料人需要领取某种物料时，只要在上层服务器上选中该物料并给出数量，则服务器把领料指示指令通过无线网络下发到对应物料架，点亮物料架总指示灯以及相应物料位置指示灯，无线节点上附带的数码管显示取料数量。本发明利用成熟的无线传感器网络技术，将一个库房内的多个物料架连成无线网络，在办公区域利用服务器监控库房内所有物料架上的物料剩余量，实时监控缺料情况。

Wireless communication device provided with built-in antennas and adopting middle ring heat dissipation

本发明涉及无线通信网络技术，特别涉及一种内置天线中圈散热无线通信装置。包括电路板、金属壳体、天线、塑料面板Ⅰ及塑料面板Ⅱ，其中电路板设置于金属壳体内，天线设置于金属壳体的两侧、且与电路板连接，塑料面板Ⅰ和塑料面板Ⅱ设置于金属壳体两侧天线的外侧、且与金属壳体连接。金属壳体包括金属主体及设置于金属主体两侧的金属盖板Ⅰ和金属盖板Ⅱ，电路板安装在金属主体上，天线设置于金属盖板Ⅰ和金属盖板Ⅱ的外侧。本发明采用中圈金属壳体的外圈散热，即不用风扇也不需要通气孔，封闭性好，具有体积小、重量轻、散热效率高的优势

Fault diagnosis and positioning method of robot RV speed reduction device

本发明涉及一种机器人RV减速器故障诊断和定位方法，具体的说是基于信号自适应拆分的机器人RV减速器故障诊断与定位方法。本发明包括以下步骤：获取声发射信号；自适应拆分声发射信号；对信号进行初始的频域变换；采用递归神经网络作为训练模型，对拆分及处理后的信号进行训练；对新获取的信号进行判断，并结合角度数据对故障点进行定位。本发明在充分考虑机器人用RV减速器运行机理的基础上提出的，能够准确快速的诊断相应的故障，提高机器人维护效率，降低运营成本

针对AGV无线网络有序数据包的实时可靠传输调度方法

本发明涉及工业无线网络技术，具体地说是针对AGV无线网络有序数据包的实时可靠传输调度方法。该方法包括AGV(Automated Guided Vehicle)网络架构和数据包传输机制设计，网络超帧结构设计，传输调度算法设计三个步骤。本发明方法综合考虑AGV网络中单个数据包有严格时延要求，数据包之间有传输顺序要求，上、下行链路易丢包的特点，以网络的传输可靠性作为衡量调度方法性能的指标，基于控制包生成顺序设计新的网络超帧。在每个超帧，根据上、下行链路的丢包率以及网络期望丢包率，为每条链路分配时隙个数。此外，动态调节网络期望丢包率从而在截止期内最大化网络的传输可靠性