基于物联网技术的农业气象观测系统的研究与设计

为了更好地实现农业气象数据观测的实时、可靠、准确性,研究设计了一种基于物联网的农业气象观测系统。该系统在Eclipse的开发环境中,利用B/S模式和专业数据库实现数据采集与应用实时结合的功能,解决了过去气象部门数据与应用软件分离,监测、分析功能实时性不高的问题。同时,后台应用软件利用前端无线传感网络的实时数据,并结合专家知识自动向用户推送农业气象预报信息。综上所述,研究设计的农业气象观测系统信息推送准确及时,极大地满足了现代农业对气象服务精准化的需求。     

Analysis on Communication Mode of Feeder Automation

The paper mainly analyzes and studies mode of bus communication based on optical fiber at one_point to multiple_point and mode of point_to_point communication based on wireless at one_point to multiple_point. The advantages and disadvantages of two communication modes are given. Considering the demands on FA data communication,the paper presents transmitting data based on network mode and connection mode,implementing application protocol based on object oriented mode and international standard. Considering the requirements of FTU unit for data communication, the paper proposes the network inner operating system in FTU unit, which is indispensable. Data are transmitted on client/server mode, defined and organized on object oriented mode and transmitted on logical address.     

Application of Web Server in Remote and Intelligent On-line Diagnoses System for Rotational Machinery

Web Server is a software technology and communication method to carry out information issuance. The new concept of combination of equipment faults diagnoses with Web Services technology is proposed. The techniques flow of equipment, techniques parameters, signal characteristics and inference resolution in faults diagnoses are put forward with communication and software in order to carry out data dynamical exchange and interface of HMI. The remote processing on network of system information issuance is formed in this way. The principle and characteristics of Web Server technology are introduced. The common contents of information issuance in on line diagnoses system is also classified. The Web Server is applied in the project for high technology research work (863 project) "Remote and Intelligent On-line Diagnoses System for Rotational Machinery" to realize the function of information issuance and data inquire by groupware of DELPHI 6 Web Services.     

A fault data recording system design for hybrid electric vehicles

A data recording system for fault diagnosis of hybrid electric vehicles was studied by taking the integrated starter and generator (ISG) hybrid electric vehicle as the investigation object. The fault diagnosis communication net was established using a CAN bus and a K line. As designed, the system hardware structure included a CPU processing module, a communication module, and a USB recording module. With the system requirements and characteristics in mind, special circuit design and analysis of USB mass storage module were carried out based on the hardware scheme and software design. In the running test, the fault data recording system worked stably, and the data was recorded integrally and correctly. At the same time, the online display data accurately reflected the vehicle's running status.     

基于WEB和RS-485总线的分布式远程环境监控系统的实现

提出了一种针对温室环境监测的基于WEB的数据采集和信息发布系统设计方案,并从软、硬件的角度详细介绍了系统的实现方法。该系统应用MS VB.NET开发工具,采用ASP.NET 技术规范,构建了B/S（Browser/Server）模式下的远程监控系统。硬件系统通过RS-485总线与数字传感器连接,并与具有联网功能的PC监控计算机构成温室现场监控系统。该系统不仅能够通过Internet远程浏览访问温室现场数据,而且能对系统运行参数进行远程修改和设置。该系统不仅可以实现对温室环境的异地和远距离数据监控管理,而且也可应用于农业的其它领域。     

农业大棚温度自动记录仪设计

为了便于实时监控农业大棚温度的变化,设计了测定农业大棚小环境的温度自动记录仪。该记录仪采用数字温度传感器、单片机、显示器和I2C器件。软件设计主要包括：温度信号的采集、温度数据的储存与读取、汉字与采集结果的混合显示3个模块;通过对系统的设计进行Proteus仿真,结果表明系统的软硬件设计正确。     

Real-Time Tracing of 200 MW Power Plant Generators By A 3~+ Network

The communication of the application program among work tations of 3+ network is realized by the shared file on harddisk of the network server,which does not support the application program' s real-time communication among the network workstations nor supplies software or hardware needed for information refreshing, nor fits for field multibatch continuous real-time transmission and processing of working condition information, by using the NETBIOS function call method, the real-time communication among network workstations is realized and a power plant working information background real-time communication and data processing system is developed which effectively traces working condition from tow 200 MW power plant generators, altogether 321 points from a cycling detecting system and 78 binary points for broadcasting the information to other workstations,and realizes a complx display of 14 working condition graphs and a real-time data simulation graph.     

Application PCI Interface Chip to X-ray Spectrum Detection

In the design of x-ray spectrum detecting, adopting the PCI bus for transmission is an effective way to realize real-time and high-speed, and it has also a powerful ability for image transmission. The authors introduc PCI9030 with a slave interface device made by PLXtech corporation, and then they draw up in details the hardware and the acquisition software in the design of high-speed data acquisition card used in x-ray spectrum detection.     

design of an equipment condition monitoring and fault diagnosis network system for the main drive of a hot strip mill

A new distributed equipment condition monitoring and fault diagnosis network system based on an RS485 field bus and an industrial ethernet was designed for the main drive system of a hot strip mill. The system structure and composition were studied. The following problems were resolved: communication of an intelligence data acquisition module with RS485 interface; communication between a server, clients and a light emitting diode; and point to point communication between a programmable logic controller and server. Real time signals of 24 radial run out, 12 axial drifting can be synchronously acquisitioned and stored in a database. System operation is satisfactory and can be used to identify the causes of rolling mill halt and transmission slip brake, and to improve sheet metal quality.     

粮食定等智能检测系统研究设计

论述了粮食定等智能检测系统的设计思路;重点介绍了小麦、玉米质量智能检测系统的通讯协议、软硬件的设计和功能特点,该系统改变了传统人工检测、手工录入数据的模式,实现了收购定等质量指标及储藏品质判定仪器数据的自动采集、传输和统计,并与智能化粮库管理平台的数据库实现了数据实时交互和共享,为粮油收购质量源头控制提供了技术支撑;展望了粮食仓储企业质量检验信息化的发展方向。     

Design of PCI Bus Controller Based on I/O Transmit

With the microcomputer improving and multimedia and wideband network developing. the I/O bandwidth requires more and more. The last standard bus, for example, ISA, EISA and MC can not be satisfied with the demand of the modern technology. In this case, the PCI bus appears, and become the master standard bus. Now there are two methods to realize the PCI Controller circuit, which are the special chip and the programming logic chip. The PCI system structure is introduced,and a PCI Bus Controller is Fealized based on the I/O transmit through using a Lattice1032E chip. Which has proved successful by application.     

Real-time Infrared Image Acquisitionand Processing System Based on PCI Bus

In the system of infrared imaging acquisition, it is necessary to improve data transfer to satisfy the characteristics of high speed and real time. So,this paper introduces PCI bus and PCI inerface to imaging acquisition. The protocol of data transfer of PCI local bus and the structure of PCI9050 are studied in detail, and the IRFPA data acquisition system are described based on the protocol of data transfer of PCI local bus. The system adopts frame buffer to make slow transmission between peripheral circuit and PCI bus.CPLD is also used as a master of logic time control?     

Application for Hybrid Electric Vehicle Based on CAN Bus

The paper introduces the application of CAN bus in the Hybrid Electric Vehicle, studies the CAN bus technique and the design based on the node of CAN bus, and provides a network topology mode. The theories foundation and basis for new generation automotive are provided, which are combined to introduce the hardware constitutes and software method for the node of CAN bus.     

Information Platform of Enterprise Office Based on Dynamic and Instantaneous Coordination Work

It is not able to provide the decision service information that should be instantaneous, exact and all-around for governor by means of traditional mode of information communication. And it is important problem faced by modernization office. In order to get the needed information instantaneously and satisfy requirement of coordination work, the paper presents a kind of enterprise office information platform based on dynamic coordination work. The platform can guarantee coordination work of the system dynamically and instantaneously, and it is stronger in functions, and facility in use. It is discussed in more details to the design of dynamic coordination workflow drive and coordination message service drive and so on. The application effect of practical engineering shows that the design is successful.     

一种基于PLC的高速远程控制果蔬智能分选技术研究

果蔬分选是农业果蔬产后不可缺少的重要环节,以可编程逻辑控制技术为核心的自动化生产线为现代农业的智能化发展提供了新途径.为提高果蔬的分选效率,减少本地分选的人工成本,将数据采集、数据处理、无线通讯、智能控制等技术深度融合,研究一种可远程控制的果蔬智能分选机制,并通过可编程逻辑控制器(PLC)自动化数据采集与机械控制和.NET Core架构的分布式网络控制方法两方面对远程控制分选方案进行研究,配合合适的糖度-质量等果蔬品质模型,实现高速远程在线果蔬智能分选.基于该分选技术的软硬件方案进行试验,对控制策略和分选精确度进行仿真.结果表明,与传统的果蔬分选技术相比,该系统从系统成本、反应速度、分拣精度、管理效率等方面均有优势,果蔬分选精度能达93％以上,可以实现远程故障排查,节省了人工成本,具有推广应用价值.     

Design of Data Acquisition System for Vehicle Based on CAN Bus

To the question that a meter is correspond with a set of lead and a sensor,this paper presents a design of data acquisition system for vehicle based on CAN bus.In this way,the combinatorial instrument is only connected by a bus unit.Author introduces the data acquisition structure chart and the CAN interface,analyzes the software by program flow chart,and shows it's application for vehicle virtual instrument.A method of calculating vehicle speed,engine rotate speed and the course of development mileage are also given.     

Serial Communication System Between PC and PLC Based on Visual C++

It is usually need to supervise and control gathering data and working status of PLC in industry control.There are some ways such as VB,DELPHI,PB to carry out the requirement.Visual C++ is an exploiture tool for Windows application program and has quite strong function in the aspect of image processing and database managing etc.It has faster speed to realize bottom communication control.Using Visual C++ and MFC,the authors implement the serial communication system between PC and PLC.The paper introduces the communication protocol and software design method and realizes data's sending and incepted rapidly,real-time auto-control accurately and quickly.This system is simple,economical,and reliable and has an application value,which has been applied successfully in real system.     

基于GIS的地市级人工影响天气作业指挥系统设计与实现

人工影响天气作业活动在各级气象部门广泛开展。传统的工作模式中,地市级人工影响天气作业主要依托指挥人员手工分析资料后,通过口头传递和手写记录的方式完成指令的下达和反馈。随着近几年人影作业规模迅速扩大,传统的作业模式已经不能适应人工影响天气业务的现代化建设需要。为了进一步提高工作效率,三门峡市气象局基于GIS开发了1套地市级人工影响天气作业指挥系统。该系统由软件和硬件2个部分组成。其中,指挥系统软件通过气象局内部网络实时获取气象观测资料和雷达、卫星等产品资料,经过一系列的数据处理后,采用GIS技术实现气象数据与地理信息在指挥平台中的叠加显示,为作业指挥人员提供决策气象数据支持。并根据预先设定条件为炮点作业人员生成详细的作业参数,将作业指令通过手机短信、电子显示屏、语音大喇叭等方式传递给一线作业人员,具有较强的作业指导性和调度实时性。系统硬件主要包括用于辅助指挥的地理沙盘模型和手机、语音大喇叭、LED电子显示屏等指令接收终端,指令接收终端通过GPRS网络连接到系统服务器上。该系统已经在三门峡市气象局和所辖县气象局投入业务应用,在运行过程中稳定可靠、指令接收及时,有效地提高了工作效率,达到了预定的设计目标。     

Design of data acquisition and communication system for AMTcomprehensive performance test bench

AMT (Automatic Manual Transmission) comprehensive performance test is one of the main means to develop and evaluate AMT. An overall scheme of the data acquisition and communication system for AMT comprehensive performance test bench is proposed according to the requirement of the test bench, and a communication network of data acquisition and communication system is built. The hardware and software of data acquisition system are designed. The experiments show that the system meets the requirement of data acquisition and communication system for AMT comprehensive performance test bench and it lays a foundation for AMT comprehensive test research.     

Design and Realize the Short Message Service System

Along with the widely using of mobile telephone, the SMS (Short Message Service) has achieved more and more approbation of consumers. Besides the point-point application of SMS among mobile phones, a new application of SMS between information system and mobile phones is developed quickly now, and it is a new way to achieve information conveniently and duly for users. In this paper, we design a software based on SMS to solve some problems which exists in the communication among employees. We also give out the system's functions, key technology and application in the enterprises. This system has some important value in theory and application for building a digital enterprise.