The Preliminary Design and Implement of Plant Digital Information Retrieval System

[Objective] The aim was to set up a plant digital information retrieval system.[Method] Plant digital information retrieval system was designed by combining with Microsoft Visual Basic 6.0 Enterprise Edition database management system and Structure Query Language.[Result] The system realized electronic management and retrieval of local plant information.The key words of retrieval included family,genus,formal name,Chinese name,Latin,morphological characteristics,habitat,collection people,collection places,and protect class and so on.[Conclusion] It provided reference for these problems of species identification and digital management of herbarium.

Real-Time Information System of Power Plant Based on B/S Computing Mode

This paper introduces the system structure and work principle of the upgraded real time information system in Wangting Power Plant, and then expounds the realization way and function features of this system on B/S computing mode. The results of field application show the new system has good capability, reliability and expandability.

Study on Service Platform of Kunming Landscaping Plants Information

For the purpose of Kunming City’s landscaping development and satisfying the needs of botanical garden workers who demand to quickly obtain landscaping plants information and select tree species, a landscaping plant information database was established, which contained almost all Kunming botanical garden plants information. This database was based on Kunming natural environment conditions, and finished by hard work of collecting and analyzing relevant written materials as well as pictures of garden plants. By using B/S Structure model, dynamic web programming language ASP and Photoshop, Dreamweaver as software tools, a Web-based illustrated remote consultation service system of landscaping plants information was constructed.

A parameter optimization approach to robust PI-controller design for systems with interval plants

The purpose of this paper is to develop an analytic way for designing optimal PI-controllers for the interval plant family. Optimality means that the coefficient intervals of the plant stabilized by a PI-controller is maximized. It will be shown that the optimization problem can be formulated in terms of an eigenvalue minimization problem of matrix pairs of the form （H（h0, g0）, H（δ1,k, δ2,k））, where k= 1, 2, 3, 4 and both H（h0, g0） and H（δ1,k,δ2,k） are frequency independent Hurwitz-like matrices. A numerical example is provided to illustrate that optimal controller parameters can be successfully obtained by a two-dimensional search.

Prototype Geographic Information Systems Mapping of Crop Products Featured Local

Local featured program in Indonesia cannot be separated entirely from commodity strategic bases. Until in 2006, agricultural development formulation showed indicative targets for featured crops commodity production. The problem of food security is forming of farmer’s independence to protect local resources in efficiently and optimally, so these resources can be more utilized. It can be achieved by assist of information technologies and communication in forming of Geographic Information System (GIS) to support consistency of food security in Indonesia. This research designs prototype geographic information system in order to conduct the accurate mapping and to know the local featured crops production in Indonesia. This level is conducted for documentation and mapping of agricultural products which is the local featured production. This documentation requires the usage of potential physical, economic, social and cultural environment by the utilization of information technology and communication, which have the ability of relevancy and accessibility of reliable information.

The Study and Development of Plant Management Information System (PMIS) Of NanHua Group Compay

In order to make management scientific, standard and intensive, more and more companies pay attention to plant management. Tlie system presented in this paper aims at helping NanHua Group Co. to improve its plant management level. This paper emphasizes the importance of plant management to NanHua Group Co. and mainly discusses the PMIS and how to implement plant management based on the contents of modern plant management. This part is the core of this paper. The final part sums up the research work and results.

Study on Plant Management Information System Based on Intranet for HongHe Cigarette Factory

Accompanying with the development of computer technology and network technology, enterprises have built their Intranet. This paper is dealing with how to construct the plant management information system based on Intranet, and lays emphasis on the subsystem division using structural system analysis and design method.

一种基于PI控制策略的自动化水泵调频脚本设计方法

在水处理行业,稳定的进水水量是保持出水水质稳定的关键。目前,大多数生活污水提升泵站所采用的浮球与变频频率调节相结合的控制方式,普遍存在出水稳定性不够、水泵单元能耗浪费较高、无法与污水处理厂联动调控等问题。文章介绍了一种在组态软件WinCC上基于PI控制策略来实现水泵自动化调频的脚本编程方法,该方法可以根据污水处理厂的实际水量需求反馈至生活污水提升泵站,并实时稳定泵站的出水水量,达到稳定水量、节约能耗、联动控制的目的。基于组态软件WinCC的普遍性,该方法能够有效并广泛应用于水处理行业,并且已达到预期效果。

Ethnobotany of food,medicinal,construction and household utilities producing plants in Cikaniki,Gunung Halimun Salak National Park,Indonesia

The community living around the Cikaniki Area of Gunung Halimun Salak National Park(CAGHSNP)uses various plants to fulfill their needs.Their habits are related to indigenous knowledge of using plants as food,medicine,construction,and household utilities,which dynamic societal changes have not displaced.This study aimed to inventory and update potential plants used as food,medicine,construction,and household utilities by local communities in the Cikaniki area,and measure and analyze their cultural and ethnobotanical value.This study objected to five hamlets in the Cikaniki at Malasari Village,Nanggung District,Bogor Regency,West Java,Indonesia.The quantitative analysis was calculated based on the Informant Consensus Factor,Fidelity Level,and Use Value.We analyzed the qualitative data based on the data collection through observation,interviews,and documentation from informants and respondents in five hamlets.The study recorded 199 plant species from 75 families used by the community of CA-GHSNP.The most utilized species in Cikaniki were Staurogyne elongata,Caryota mitis,Blumea balsamifera,Castanopsis argentea,Pilea melastomoides,and Piper betle.There are 72 species of plants used as food,122species for medicinal purposes,and 50 species of plants used for construction and household utilities.The potential plant species in the CA-GHSNP,their utilization categories,and recommendation for conservation strategy are discussed.

基于PI实时数据库的低压配电网降损辅助决策方法

为进一步提高低压配电网的降损效果,提出一种基于PI实时数据库的低压配电网降损辅助决策方法。通过工厂信息(plant information,PI)实时数据库计算低压配电网中的三相相线和中性线线损,判断出中性线负荷不平衡极易导致出现较大的损耗;将温度作为影响低压配电网损耗的主要因素,凭借增加低耗能变压器占比、增加导线截面积以及优化配电网运行方式,完成配电网降损决策。并在某市树干式低压配电网中进行试验测试。测试结果表明:所提方法可以有效改善配电线路负荷不平衡的情况,对比未降损前的各相相线和中心线损耗,降损后的损耗值出现了明显下降趋势,且所提方法的总线损率相对较低,各相线损均控制在2%以内。

Raspberry Pi的DRAM PUF密钥生成系统研究

介绍了基于树莓派B+硬件平台实现DRAM PUF密钥发生系统的研究与设计。系统从嵌入式设备广泛使用的动态随机存储器中提取带有自身硬件指纹的物理不可克隆函数,通过模糊提取算法和Hash算法消除由于环境噪声及老化效应带来的错误信息,稳定生成128位DRAM PUF安全密钥。该系统生成的DRAM PUF安全密钥可靠性高达99%,唯一性为48.44%,均匀性为50%,并且密钥的信息熵值为1.0。

基于改进ESKF的植保无人机时延位姿补偿算法

为解决全球导航卫星系统和惯性测量单元融合时间不同步问题,提高植保无人机位姿估计精度,本文根据植保无人机大惯性、强振动的特性提出一种基于改进误差状态卡尔曼的时延位姿补偿算法。首先对名义状态变量线性预测,引入渐消因子提高强振动环境下的系统稳定性;接着采用互补滤波对角速度补偿,对姿态误差状态变量修正;最后结合测量的延迟时间,使用互补滤波外推数据,提高大惯性特性下的速度位置精度。实验结果表明,相较于误差状态卡尔曼算法,横滚角和俯仰角均方根误差减少0.2669°和0.2414°,偏航角均方根误差减少0.0764°;正常航迹植保作业下,东北天方向速度均方根误差减少0.2105、0.1849、0.2388 m/s;东北天方向位置均方根误差分别减少0.21、0.19、0.23 m,有效提高位姿估计精度。

深圳地铁3号线PIS系统紧急信息联动显示优化研究

本文介绍了3号线PIS系统紧急信息显示功能的原理,并从原理和设备特点出发,对3号线PIS系统现状存在的联动紧急信息显示不稳定的问题进行了优化研究,总结出了最佳优化方案,并从现场测试、实验等方式验证了方案的可行性。本文通过此类PIS系统联动信息显示功能优化的研究,可为后续的新线建设提供相关参考经验。

基于PIE-Engine融合改进特征的农作物分类研究

准确、及时地了解作物种植结构和信息在粮食安全、经济到政治等人类活动的许多方面都发挥着至关重要的作用。基于结合面向对象随机森林算法(Random forest,RF)和一站式地球科学大数据实时计算平台(Pixel Information Expert-Engine),探讨了结合面向对象随机森林算法与时间序列哨兵1号合成孔径雷达(SAR)数据后向散射系数对大规模作物分类的影响,并结合哨兵1号和哨兵2号主被动遥感数据,探讨植被指数特征和纹理特征的不同组合对后向散射系数、光谱特征和作物分类精度的提高。结果表明,结合面向对象随机森林算法,可明显削弱分类的椒盐效果,且基于融合时间序列的多特征SAR和光学数据的分类精度最高,SAR数据的分类精度最低。本研究采用的方法和平台能够准确、高效地进行土地利用分类工作,具有很好的推广价值。

植物生理学实验课程混合式教学改革实践

为实现学生综合素质的提高和创新能力培养,针对植物生理学实验课程教学现状,充分利用信息化技术,进行线上线下混合式教学模式改革。本研究结合更新教学理念,优化实验内容,建立多元化考核机制,加强团队组建,以及完善实验室信息化建设等措施,探索“互联网+实验”教学形态,以推动该课程实验教学质量的提高,为植物学类课程教学改革提供参考。

燃煤电厂中煤场的防碰撞系统研究

通过对安全防护需求的图像处理及雷达扫描技术建模研究,开发了基于图像处理与雷达信号相融合的防碰撞系统。通过计算测试分析,在多干扰噪声情况下系统最大误差为42 mm,处于合理误差范围内,完全满足实际工程需要,这对实际燃煤电厂内煤场的设备运行安全提供了一定的技术保障,同时实现了人与其他设备的安全防护要求。

基于信息差距决策理论的虚拟电厂报价策略

为进一步提升分布式能源的调节潜力,基于信息差距决策理论,将探讨虚拟电厂(virtual power plant,VPP)在参与需求响应(demand response,DR)策略时的竞价方式分为平衡型、保守型和进取型3种策略模型,并为每种策略设计鲁棒函数和机会函数,分别实现对不同类型决策的优化。同时,设置ε约束模型,考虑了碳排放和利润的权衡关系。采用IEEE 18节点系统作为仿真环境,验证了所提方法的优点和必要性。仿真结果表明,保守型VPP能够保证在未来价格落入最大鲁棒性区间时获得最小关键利润;进取型VPP能够从意外的价格波动中获益,并实现期望的利润。

PI数据库及其信息交换技术在电厂中应用

首先,介绍了工厂信息PI(Plant Information)实时数据库(服务器端、客户端、接口)软件及数据处理(数据流程、螺旋门压缩、缓存)技术。详细阐述了PI应用程序接口PI-API(Application Pro-gramming Interface)函数及其在电厂第三方软件中的应用。最后,指出PI-API功能强大,可开发出各种满足客户要求的软件。

基于PI数据库的SIS报表解决方案

针对目前电厂报表的实际需求和现有报表系统的缺陷,提出一种基于PI数据库强大功能的新的SIS报表解决方案,包括系统的总体架构和报表组态、计算、发布及重算等功能模块的具体实现。系统以DataLink为报表组态开发平台,加入了针对国内电厂的专业函数和功能,同时利用高效稳定的计算引擎和计算调度中心完成报表计算和重算。工程实践证明,该报表解决方案组态方便、功能强大、计算高效,有效解决了现有报表系统中存在的问题,具有很好的推广价值。

分数阶系统模糊自适应分数阶PI~λD~μ控制器

针对分数阶被控对象,采用分数阶微积分的数值解法,提出了模糊自适应分数阶PIλDμ控制器的数值实现方法与步骤.由于分数阶闭环控制系统的模糊化难以实现,将分数阶PIλDμ控制器与分数阶被控对象构成闭环分数阶控制系统,求其闭环系统在时域内的表达式,再用分数阶微积分的数值解法并结合模糊推理规则,推导出了模糊分数阶PIλDμ控制器的实现步骤,并对其控制系统的单位阶跃响应性能进行了仿真分析.结果表明:所设计的模糊自适应分数阶PIλDμ控制器比分数阶PIλDμ及传统的整数阶PID控制器表现出较好的控制性能.