振弦式力传感器一带二接线技术试验研究

大坝安全监测所用的振弦式测力监测仪器一般采用四芯屏蔽电缆实现信号输入和输出。”一带二”技术是在实际工作中根据施工现场的需要总结出来的一种应急补救措施。当振弦式仪器的信号电缆在埋设施工后,发生电缆故障时可以采取该技术措施来进行补救处理。试验结果表明监测信号完整且相互之间无干扰。     

变电站网格监控研究

提出一种基于网格计算的变电站监控基础平台,该平台很好地利用了网格计算的分布式信息处理能力来处理广域变电站的监控问题.基于网格计算开发平台Globus来实现.实验室测试结果表明,该实验平台能够较好地完成系统数据的监控任务,为基于网格计算的变电站分布式监控的真正实施,提供了一种有效的模式.     

汽车仪表监测系统的研究与设计

设计一套先进的基于CAN／LIN总线的汽车仪表自动监测系统．实现了汽车仪表信息数字化、车内总线通讯与全车信息共享、整车统一调度、基于全车信息的故障诊断等功能。     

苹果采摘机器人监测系统和表面缺陷检测方法研究

针对目前苹果采摘作业多以人工采摘为主,且机械化采摘质量和效率不高等问题,提出一种苹果采摘机器人监测系统。监测系统通过种植园环境、机器人运行状态、机器人作业质量以及后台监控系统四个模块,完成从采收前环境监测到采收后质量监测的全程监控。同时,为监测采摘后苹果的质量问题,提出了一种基于Mo-M2Det的苹果表面缺陷检测方法。以减少参数量和计算量为目的,改进M2Det目标检测网络,实现轻量化和高精度检测。实验结果表明,改进的M2Det目标检测网络检测准确率达到了98.45%,且模型参数量减少了56.3%。在实际应用中,改进的轻量化网络模型部署在检测平台上具有较好的检测效果。     

轴承转子系统的失稳监测

在现场条件下,用随机减量技术从运行机械中提取出对轴承转子系统稳定性敏感的模态参数（系统的最低阶自然频率和阻尼比）,用这些参数对系统的失稳实施监测,实际应用的结果表明,用这种方法可以及早地发现系统潜在的失稳．     

建筑工程施工成本监测预警及协调控制

通过对施工成本影响因素的识别,建立了施工成本监测与预警信号模型,以及施工成本协调控制模型等。     

Segment-constrained regression tree estimation of forest stand height from very high spatial resolution panchromatic imagery over a boreal environment

Mean stand height is an important parameter for forest volume and biomass estimation in support of monitoring and management activities. Information on mean stand height is typically obtained through the manual interpretation of aerial photography, often supplemented by the collection of field calibration data. In remote areas where forest management practices may not be spatially exhaustive or where it is difficult to acquire aerial photography, alternate approaches for estimating stand height are required. One approach is to use very high spatial resolution (VHSR) satellite imagery (pixels sided less than 1 m) as a surrogate for air photos. In this research we demonstrate an approach for modelling mean stand height at four sites in the Yukon Territory, Canada, from QuickBird panchromatic imagery. An object-based approach was used to generate homogenous segments from the imagery (analogous to manually delineated forest stands) and an algorithm was used to automatically delineate individual tree crowns within the segments. A regression tree was used to predict mean stand height from stand-level metrics generated from the image grey-levels and within-stand objects relating individual tree crown characteristics. Heights were manually interpreted from the QuickBird imagery and divided into separate sets of calibration and validation data. The effects of calibration data set size and the input metrics used on the regression tree results were also assessed. The approach resulted in a model with a significant R² of 0.53 and an RMSE of 2.84 m. In addition, 84.6% of the stand height estimates were within the acceptable error for photo interpreted heights, as specified by the forest inventory standards of British Columbia. Furthermore, residual errors from the model were smallest for the stands that had larger mean heights (i.e., > 20 m), which aids in reducing error in subsequent estimates of biomass or volume (since stands with larger trees contribute more to overall estimates of volume or biomass). Estimated and manually interpreted heights were reclassified into 5-metre height classes (a schema frequently used for forest analysis and modelling applications) and compared; classes corresponded in 54% of stands assessed, and all stands had an estimated height class that was within ± 1 class of their actual class. This study demonstrates the capacity of VHSR panchromatic imagery (in this case QuickBird) for generating useful estimates of mean stand heights in unmonitored, remote, or inaccessible forest areas.     

基于WSN的地窖贮藏环境自动监测系统研究

针对我国窖藏环境监测难的问题,设计开发了一套基于无线传感器网络的地窖贮藏环境自动监控系统。该系统能快速、准确地获取影响物品贮藏区的环境参数,并且以无线方式自动上传到服务器终端,实现数据的自动分析、处理、显示、查询、预警和辅助决策等功能。本文从无线传感器网络的系统整体架构、通信机制和监控平台软件给出了详细的设计和实现过程。该系统可靠性高、功能易扩展,适用各种规模化窖藏的用户使用,具有广阔的市场前景和实用价值。     

基于WebGIS/GPRS/GPS/CAN BUS的远程监控系统

设计了一种基于WebGIS/GPRS/GPS/CAN总线技术的危险品在途运输车辆的远程监控系统,着重阐述了传感器采集系统、远程监控系统、地理信息WebGIS查询系统以及基于CAN总线的数据传输系统。并将采集到的数据以B/S的形式显示,同时详细的描述了整个系统的框架与软、硬件设计。整个远程监控系统的性价比、可靠性、安全性都比较高。能较好的满足市场的需求。     

基于RFID技术的肉牛养殖质量安全可追溯系统研究

消费者和国际贸易对食品质量的要求日益提高,而运用监控、预警、追踪、追溯等技术在食品生产的关键环节上进行的质量监控是有效保障食品质量安全的重要手段。研究采用B/S（浏览器/服务器）模式结构体系,基于RFID技术构建了肉牛养殖可追溯系统。系统通过应用RFID技术,实现了对每头肉牛的养殖信息的自动采集,并针对每头肉牛形成可在Internet网络上进行查询的质量追溯档案。解决了牛肉在肉牛养殖环节（牛肉生产源头）上进行以肉牛个体为单位实施质量监控和实现可追溯的问题。