共查询到19条相似文献，搜索用时 187 毫秒
1.
2.
北方果树霜冻害远程监控与报警系统初步研究与实现 总被引：1，自引：1，他引：0
为提高北方果树防霜冻害管理水平,基于物联网架构,设计实现了北方果树霜冻害监测与报警系统。该系统结合实时获取果树生长环境数据,及果树霜冻害发生规律和专家知识库,为用户提供远程果树环境信息分析和霜冻害智能诊断服务。同时为满足不同生产条件需求,结合用户需求和环境状况,提供自动报警。根据用户随时随地获取信息的需求,基于多种网络技术等(如Internet、android等移动互联网),开发了可用于PC终端、移动终端(如智能手机、平板电脑等)多平台管理模式。通过提供现场综合远程实时监控、数据采集、网络传输、数据管理分析及报警预警等功能,系统实现了对果树生长的全方位多功能的远程监控与综合管理,有效提高了果树防霜冻害监控管理水平。 相似文献
3.
MCGS组态软件在粮情监控系统的应用 总被引：1，自引：0，他引：1
针对粮库粮情监控系统的现状,提出了应用MCGS组态软件对中小型粮库实时状态进行监控的解决方案,符合中国的国情,并介绍了相关硬件的使用方法和组态软件MCGS实现监控系统的基本过程. 相似文献
4.
基于web的农产品安全生产组态软件 总被引：1，自引：1，他引：0
提出了以SVG作为监控图片格式,Ajax作为客户端与服务器通信机制构建基于Web的农产品安全生产图形组态软件的方法。详细介绍了系统的整体结构,系统的主要功能模块的设计及具体实现,并介绍了系统实现过程中的关键技术。农产品安全生产组态软件不仅可以实现农产品生产过程的实时监控,而且还为生产预警提供依据。 相似文献
5.
基于WEB和RS-485总线的分布式远程环境监控系统的实现 总被引：5，自引：1，他引：4
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。 相似文献
6.
介绍了某机械化粮库自动控制系统的结构设计，叙述了控制系统的主要功能及特点，并描述了网络技术在开发集中监控和管理系统中的应用。 相似文献
7.
1.粮情监控系统的现状
粮食具有季节性生产、长年消费的特点,因此安全储粮是粮食安全的重要环节,也是保障粮食安全的坚实基础。作为科学储粮的关键技术之一——粮情监控系统在安全储粮中有着十分重要的意义。目前,绝大多数粮库都已安装粮情监控系统,对安全储粮起了非常重要的作用。但是目前已使用的粮情监控系统在具体应用中还存在着一些问题。 相似文献
8.
9.
介绍由无线网络摄像机、电力路由器组成的监控系统的开发和安装过程,以及在粮库中的应用。通过无线网络摄像系统,可以在手机、平板电脑、PC机上,随时随地查看粮库特定区域内的情况。 相似文献
10.
基于GIS的农业经济信息服务系统的设计与实现 总被引：2，自引：2，他引：0
针对现有农业经济信息服务系统的缺陷,提出了结合地理信息系统技术的改造方案。以组件式GIS软件Supermap Objects为开发平台,C#.Net为语言环境,采用面向对象和组件式开发技术,设计和开发了农业经济信息服务GIS系统,并建立了农业经济基础信息空间与属性数据库。新的系统实现了农业经济信息数据的空间查询和空间分析,为各级农业部门提供辅助决策手段和辅助分析依据,提高了农业经济信息服务的水平。文章详细阐述了系统的体系结构、功能模块和在C#.Net中使用Supermap Objects组件对象进行地理信息系统开发的基本过程。 相似文献
11.
为实现对无土栽培营养液中影响作物生长的各重要因子的精准测量与控制,笔者研制了一种基于阿里云的温室无土栽培营养液信息监测系统。该系统主要包括采集模块、控制模块、云平台和应用终端4个部分。首先利用传感器实时测量营养液的电导率、酸碱度、液温、液位和含氧量等影响因子信息,然后进行数据整合处理,并通过无线通信模块传送至控制模块及阿里云平台进行数据保存,最后通过Web端实时监控营养液各信息变化。研究结果表明,该系统能够实时准确监测营养液的信息,合理反馈供给作物所需营养液信息,达到功能设计要求,而且系统成本低,具有一定的实用价值。 相似文献
12.
A fuel system evaluation method was introduced to select the proper high pressure injection system for diesel engines. Using this method, the second generation common rail system of BOSCH Company was selected for use in the 4JB1 diesel engine. Based on this common rail system, a fuel supplying model was built using AMESim. The model included a high pressure pump sub module, a pressure control valve sub module, an injectors sub module, and a connecting pipes sub module. Through model simulation, the influences of parameters (e.g., rail volume, high pressure pipe length and diameter) on pressure fluctuations and pressure building were studied. Rail pipe system parameters were selected based on simulation results. Experimental results show the rail pipe parameters could satisfy the needs of rapid pressure response and low pressure fluctuations for common rail diesel engines. 相似文献
13.
TANG Xian? ming FAN You? ping MAO Wan? biao HANG Rong? jun ZENG Xue? hong HUANG Xi? yue 《保鲜与加工》2003,(1):28-33
A visualized analysis system of leak current fault transmission graph is developed. Its functions, program structure and programming principle are described.The system is composed of fault diagnosing module and man machine exchanging module, which make the generation and analysis of leak current fault transmission graph for lauch vehicle controlling system simple and visualized. The system could automatically recognize the picture of transmission and analyze both qualitatively and quantitatively only by drawing it on the monitor by the mouse. Finally an example is given, where a satisfying result is acquired via drawing inputting method which is totally new and expanding-complementing the fault tree alglorithm. 相似文献
14.
YANG Ya lian QIAN San ping QIN Da tong HE Pei xiang REN Yong ZHOU An jian SU Ling 《保鲜与加工》2008,(8):854-858
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. 相似文献
15.
为实现区域资源利用最大化,实现经济与产业的协调可持续发展,研究采用德尔菲法(Delphi)和层次分析法(Analytical Hierarchy Process, AHP)构建天津市水产养殖适宜性评价模型,在此基础上基于IDRISI软件开发了天津市水产养殖适宜性评价系统。系统首次整合了天津市整体海、淡水及武清区、汉沽区两个典型养殖区域的基础数据专题地图和评价模型参数文件,实现了线性加权地图处理、地图再分类、地图追溯和地图显示等核心功能模块。用户也可在调用现有的评价模型之外自定义完成基于栅格地图的多准则评价模型的构建。利用系统运算可得出天津市适宜水产养殖的四类地区分布,即不适宜、一般、适宜和非常适宜地区,从而为天津市水产养殖规划及管理提供相关参考依据。 相似文献
16.
For the limitations of the traditional monitoring systems under the circumstances of dispersed monitoring points, wide distribution range and the harsh environment, a distributed wireless monitoring system based on radio frequency technique is designed. The system adopts the ultra low power consumption MCU MSP430 as the main control chip and extends several processing module in the periphery. In addition, the multi channel transceiver nRF905 is used for wireless data transmission. The software and hardware design scheme of the proposed system and the communication protocol for distributed data transmission are discussed. Frequency hopping mechanisms are employed to increase the reliability of data transmission. The results show that the proposed system has the characteristics such as flexible use and excellent mobility, while can monitor multipoint data in special environment in real time. 相似文献
17.
Considering the difficult of acquiring and transmission the signal from the moving equipment, a new fault diagnosis monitoring system is presented. The system acquires the state signal from the moving equipment by data acquisition module that based in W77E58 high-speed SCM, and transmits the data fast by wireless mode. The signal data can be use for fault diagnosis and precise analysis. The system has the ability for acquiring abundance of data with a high speed, the ability for high accuracy data conversion, and has a function of programme controlling gain and programme controlling low-pass filtering. The successful application of this system on the vibration monitor about the material-transporting bogie in an iron works of a domestic steel enterprise proves the stability and credibility about the design project, also testifies its practical value and versatility. 相似文献
18.
CHEN Shuai~ 《保鲜与加工》2004,(10):114-117
Data receiving system of GPS system based on Linux was completed. The embedded MCF5272 system, M12 and G18 modules were used in the application based on uClinux. Taken MCF5272 as core, satellite position data were obtained through GPS(Global Positing System)module M12,and uClinux operation system was used in the system for controlling. By G18 module, the GPS data can be transmitted to wireless mobile network linked to Internet and received by remote server, which had been linked to Internet also. The constitution of embedded system is gived and the principle of GPS is introduced. The soft for GPS receiving is realized in uClinux system with C language, and the test data are gived in the end. The resolution of the system is that latitude and longitude: 1 milliarcsecond, height: 0.01 m, velocity: 0. 01 m/s. 相似文献
19.
基于本体的茶叶知识服务系统研究与实现 总被引：1，自引：1，他引：0
传统农业知识服务系统缺乏语义支持,并且在农业领域应用极为不足,本研究提出利用本体论和语义网知识建立知识服务系统的必要性。以茶叶领域为例,分析了生产过程中各类用户的实际需要,设计了适合农业生产实际的茶叶知识服务系统工作流程与主要模块,模块由三层架构组成：用户服务接口,知识服务平台以及知识库。描述了系统实现中的关键技术,如茶叶本体的构建方法,系统信息抽取算法以及系统的具体实现等,初步实现了系统功能。 相似文献