基于蓝牙技术的生物发酵控制系统研究

生物发酵是一个多控制参数、非线性、强耦合的复杂控制系统;深入分析生物发酵过程,构建了基于蓝牙无线通讯技术的数据采集通讯网络系统,并采用C++编程技术开发上位机监控界面,实现了控制系统各设备间的无线通信,解决了传统生物发酵控制系统中设备间搭建诸多电缆的复杂现场连线的问题,为生物发酵工业现场的数据采集与控制提供了一套可行的蓝牙多机通讯方案;实验表明,系统稳定可靠,各项参数满足控制要求,实现了对发酵过程的远程实时监控。     

VB环境下发酵过程的上位机监控系统

本文设计了发酵过程的监控系统,利用VB实现了上位机与多通道分布式下位机之间的串行通信,以及上位机监控界面的设计,具有强大的数据处理能力和图像显示能力,并可通过数据传送对下位机进行控制,方便地实现了对发酵过程的实时监控。     

激光自动调阻机控制系统设计

本文叙述了基于PC机的激光调阻机控制系统原理的设计与实现，并对其控制软件的编写进行了介绍。     

前端处理机系统软件设计与实现

本文介绍了用于集散控制系统中的前置机的系统结构，主要论述了其系统软件的设计与实现。     

PC机与多台单片机并行通信接口的设计

在由PC机和多台单片机构成的多机控制系统中，PC机与多台单片机的通信接口设计是实现多机系统功能的关键。介绍了一种基于PC总线的PC机与多台单片机并行通信接口设计方法，并将其应用到交接箱远程监控管理系统中，取得了满意的结果。     

基于单片机的多媒体设备中央控制系统

基于单片机和PC机技术设计的多媒体控制系统，实现了各种多媒体设备的集中控制、切换及监控。控制系统人机界面友好，操作方便，适用于教学、演讲展示及娱乐等各种应用场合。     

PLC在自动喷号机控制系统中的应用

提出了七段码喷号方案，介绍了自动喷号机控制系统的组成及可编程控制器（PLC）在控制系统中的实际应用，重点介绍了PLC选型、PLC的程序设计和控制系统的实现方法。     

基于西门子PLC的烟厂烟尘回收控制系统设计

以西门子的MP370作为上位机监控,以西门子PLC作为下位机,设计烟厂烟尘回收控制系统,实现烟厂无尘化自动化处理。     

PLC与上位机监控系统的串行通讯实现

PLC与上位机监控系统的通讯技术是工业控制系统中的关键技术之一。以超薄快速铸轧板形控制系统为基础，在保证系统通讯安全可靠的前提下，设计了PLC与上位机监控系统最经济，可靠的通讯方案，采用功能强大的开发工具C＋＋Builder编制上位机通讯程序。该方案实现简单， 通讯可靠，可移植性强，适合于同类的工业控制系统。     

基于PLC的温控系统的设计与实现

该文主要讨论了联华集团的基于PLC温度控制系统的设计和实现、以及上位机和下位机的软件编程的方法和技巧。     

On a nonlinear problem of a sequential control with a parameter

The problem of evasion of a group of moving points from a nonlinear controlled object, whose goal is consecutively approach these points in a prescribed order, is analyzed. The movement of each point is defined uniquely by a scalar parameter chosen at the initial time instant. The controlled object minimizes a certain cost function, and the group of the points, acting cooperatively, maximize this cost function by choosing the parameters. Necessary optimality conditions for parameters are obtained. A model problem of an evasion of moving points from a vehicle is solved.     

Three-Link Mechanism as a Model of a Person on a Swing

Journal of Computer and Systems Sciences International - We model movements of a person swinging on a swing. We consider a flat three-link hinged mechanism as the main mechanical model of the...     

Splitting a configuration in a simplex

This paper presents a new method of partition, named-splitting, of a point set ind-dimensional space. Given a pointG in ad-dimensional simplexT, T(G;i) is the subsimplex spanned by G and the ith facet ofT. LetS be a set ofn points inT, and let be a sequence of nonnegative integers ₁, ..., n_d+1 satisfying _i=1 ^d+1 ₁=n The-splitter of (T, S) is a pointG inT such thatT(G;i) contains at least _i points ofS in its closure for everyi=1, 2, ...,d + 1. The associated dissection is the re-splitting.The existence of a-splitting is shown for any (T, S) and, and two efficient algorithms for finding such a splitting are given. One runs inO(d²n logn + d³n) time, and the other runs inO(n) time if the dimensiond can be considered as a constant. Applications of re-splitting to mesh generation, polygonal-tour generation, and a combinatorial assignment problem are given.     

Combining a monad and a comonad

We give a systematic treatment of distributivity for a monad and a comonad as arises in giving category theoretic accounts of operational and denotational semantics, and in giving an intensional denotational semantics. We do this axiomatically, in terms of a monad and a comonad in a 2-category, giving accounts of the Eilenberg–Moore and Kleisli constructions. We analyse the eight possible relationships, deducing that two pairs are isomorphic, but that the other pairs are all distinct. We develop those 2-categorical definitions necessary to support this analysis.     

Not a castaway but a stowaway

A portable keyboard that's no larger than my phone, that's theiGo Stowaway.     

Motion control of a rotor with a cavity with a viscous fluid

A formulation and solution procedure of optimal control problems for perturbed relative uniform motion of a body with a cavity filled with a viscous incompressible fluid are proposed. In this paper, the case with a cylinder is considered; however, this approach is basically true for the a cavity of an arbitrary form. The formula for the angular velocity of perturbed motion depending on an external perturbing element is devised. After that, we have a possibility to set different optimal control problems and apply the formalism elaborated in the optimal control theory. Two illustrated problems are given.     

Building a sonar map in a specular environment using a singlemobile sensor

The physical properties of acoustic sensors are exploited to obtain information about the environment for sonar map building. A theoretical formulation for interpreting the sensor databases on the physical principles of acoustic propagation and reflection is presented. A characterization of the sonar scan that allows the differentiation of planes, corners, and edges in a specular environment is described. A single sensor mounted on an autonomous vehicle in a laboratory verifies the technique. The implications for sonar map building and the limitations of differentiating elements with one sensor are discussed