分布式温度监控系统在贮气瓶灌装生产线中的应用

针对贮气瓶灌装生产线中温度监控点数多，目标分散，抗干扰性要求高的特点，开发了数字化分布式温度监控系统。系统由现场温度控制器、集线器、监控计算机及通讯网络组成。系统构成简单，抗干涉能力强，工作稳定可靠。     

钢厂温度监控系统

钢厂温度监控系统基于先进网络与软件技术，为钢厂轧制过程生产管理提供优化的解决方案。温度监控系统由红外温度传感器、485数据采集变送器、大屏幕显示器、远程数据记录分析计算机和监控管理分析软件组成，具有生产工艺数据监控、记录、保存与分析、各种过程报表输出功能，提供与工厂MIS系统的接口，实现数据共享。系统成本低、功能全，不仅能很好解决钢厂的温度监控问题，也适合其他生产场合工艺数据的采集与分析。     

AD590传感器在温度监控中的应用

介绍一种利用温度传感器ＡＤ５９０和单片机８０９８构成的温度监控与预警系统，系统能精确地测量和监控温度，并通过接口电路在数码管上显示温度数值。温度越限时，系统能发出报警信号并采取相应措施。     

低速增压风洞风扇段温度监控系统研究

介绍了在低速增压风洞安全连锁系统中对风扇段轴承进行温度监控的监控系统。它是针对低速增压风洞内部的高压力、高雷诺数、多连锁节点的特点,基于单总线建立的温度监控系统。此监控系统由6只温度传感器组成,采用单总线方式,通过温度采集仪并入风洞安全连锁系统中,在满足监控精度的同时避免了多传感器带来的系统布线,有效地满足了风洞对高压力密封性多节点同时监控的要求,并保障了风扇段轴承温度监控数据的可靠性。     

用Delphi开发热辊温度和速度实时监控系统

介绍了采用Delphi开发热辊温度和速度实时监控系统，使用ActiveX通信控件MSComm，通过自主协议实现单片机与上位监控机的实时通信，完成热辊温度和速度等控制参数的显示和在线修改。用ADO数据接口和Access数据库完成监控数据的存储。     

风电场跌落保险温度监测系统设计

跌落保险的温度监测一直是风电场的一个常规检修项目，但目前的监测手段还停留在人工测温方式。针对此问题，该文提出了一种针对风电场所有跌落保险的温度监测系统技术方案，基于所提技术方案研制了样机，开展了实验研究。温度监测系统由温度监测装置、ZigBee无线通信中继网关以及监控中心温度监控设备组成。为提高无线通信传输距离，温度监测数据通过ZigBee以Mesh组网方式传输给中继网关，中继网关通过以太网将数据传输给监控设备，监控设备完成温度数据的实时显示和温度异常报警。实验结果表明，所提技术方案对于降低工人劳动强度、更准确及时监测温度数据、提高风电场信息化水平具有重要的意义。     

基于6LoWPAN的煤矿安全监控系统研究

针对传统的煤矿安全监控系统存在对监控主站的依赖性过高、无线覆盖范围窄、传感器部署不便等问题,设计了一种基于6LoWPAN的煤矿安全监控系统;给出了系统总体架构,详细介绍了系统的软件设计。温度数据采集测试结果表明,该系统工作稳定,采集与传输的温度值与实际温度相符。     

基于S3C44BOX的可扩展远程监控告警系统设计

介绍了基于S3C44BOX的远程监控告警系统的软硬件设计，该系统能监控机房内设备运行的故障信息和温度，湿度，烟雾浓度等环境参数，并通过以太网实时传送给远程监控的PC机。当出现告警信号时，系统进行声光告警，并自动拨打预设的告警电话通知相关维护人员。同时，该系统在设计时充分考虑了功能的可扩展性，可以方便地进行系统软硬件的升级。     

单个光纤布喇格光栅实现应变温度同时测量的研究

实现单个光纤布喇格光栅同时测量应变和温度的实验系统.在该系统中,温度变化使光栅的布喇格波长位移,应变使反射谱分裂成双峰.结果表明,根据光栅的初始布喇格波长和两个分裂的布喇格波长可以同时确定应变和温度的变化.应变和温度灵敏度的实验结果分别为1.172 pm/με和10.78 pm/℃.该系统在结构健康监测、智能材料和结构等领域有应用前景.     

基于Modbus总线的智能烘房温度监控系统的设计

为能实时方便地监控烘房的温度变化情况,设计了一套基于Modbus总线和组态王的温度监控系统。该系统可将每个烘房的温度值通过Modbus总线实时传送到上位机进行显示、存储、打印等,上位机采用组态王设计监控画面。监控系统运算处理后给出控制信号,通过Modbus总线传送给输出量控制模块,由该模块控制烘房电加热箱和风机工作情况。该监控系统提高了烘房温度监控的准确性、便捷性和工艺流程的自动化水平。     

Layering garments during rest and exercise in the cold (8°C): wearer responses and comparability with selected fabric properties

How garments contribute to performance of the clothing system during wear is of interest, as is understanding the value of using fabric properties to inform end-use characteristics. To investigate the influences of layering upper-body garments, four fabrics were used to construct two first-layer garments (wool and polyester) and two outer-layer garments (wool and membrane laminate). Over six sessions, 10 moderately trained males wore each first-layer garment as a single layer and in combination with each outer-layer garment while resting, running and walking in cold environmental conditions (8 ± 1°C, 81 ± 4% RH). Here, the type of garment arrangement worn (fabric type or number of layers) had little influence on heart rate, core body temperature and change in body mass. Weighted mean covered skin temperature was warmer and weighted mean next-to-skin vapour pressure was typically higher (following the onset of exercise) with two layers versus one. Differences among fabrics for individual properties were typically overstated compared to differences among corresponding garments for physiological and psychophysical variables under the conditions of this study. These findings inform the interpretation of particular fabric properties and highlight issues to be acknowledged during development/refinement of fabric test methods.

Practitioner Summary: We examined the way in which selected fibre, fabric and garment (layering) characteristics contribute to performance of the clothing system during wear under cold conditions. Selected properties of the constituent fabrics were found to provide limited insight into how garments perform during wear under the conditions of this study.     

Perceptions of temperature, moisture and comfort in clothing during environmental transients

A study has been carried out to investigate the psychophysical mechanisms of the perception of temperature and moisture sensations in clothing during environmental transients. A series of wear trials was conducted to measure the psychological perception of thermal and moisture sensations and the simultaneous temperature and humidity at the skin surface, fabric surface and in the clothing under simulated moderate rain conditions. Jumpers made from wool and acrylic fibres were used in the trial. Analysis has been carried out to study the relationship between psychological perceptions of temperature and moisture and the objectively measured skin and fabric temperatures and relative humidity in clothing microclimate. The perception of warmth seems to follow Fechner's law and Stevens' power law, having positive relationships with the skin temperature and fabric temperatures. The perception of dampness appears to follow Fechner's law more closely than Stevens' power law with a negative relationship with skin temperature, and is nonlinearly and positively correlated with relative humidity in clothing microclimate. The perception of comfort is positively related to the perception of warmth and negatively to the perception of dampness. This perception of comfort is positively related to the skin temperature, which appears to follow both Fechner's law and Stevens' law, also non-linearly and negatively related to relative humidity in clothing microclimate.     

Perceptions of temperature,moisture and comfort in clothing during environmental transients

A study has been carried out to investigate the psychophysical mechanisms of the perception of temperature and moisture sensations in clothing during environmental transients. A series of wear trials was conducted to measure the psychological perception of thermal and moisture sensations and the simultaneous temperature and humidity at the skin surface, fabric surface and in the clothing under simulated moderate rain conditions. Jumpers made from wool and acrylic fibres were used in the trial. Analysis has been carried out to study the relationship between psychological perceptions of temperature and moisture and the objectively measured skin and fabric temperatures and relative humidity in clothing microclimate. The perception of warmth seems to follow Fechner's law and Stevens' power law, having positive relationships with the skin temperature and fabric temperatures. The perception of dampness appears to follow Fechner's law more closely than Stevens' power law with a negative relationship with skin temperature, and is nonlinearly and positively correlated with relative humidity in clothing microclimate. The perception of comfort is positively related to the perception of warmth and negatively to the perception of dampness. This perception of comfort is positively related to the skin temperature, which appears to follow both Fechner's law and Stevens' law, also non-linearly and negatively related to relative humidity in clothing microclimate.     

Differences in wearer response to garments for outdoor activity

The performance of garments for outdoor activity was compared. Three fabrics, each in garments for the upper body, matched garment/wearer dimensions, were worn by 10 athletically 'well-trained' males under controlled conditions (hot 32 +/- 2 degrees C, 20 +/- 2% relative humidity (RH); cold 8 +/- 2 degrees C, 40 +/- 2% RH) with physical (instrumental) and sensory responses obtained during the trials. Differences in human responses to the fabrics/garments included heart rate, core temperature during run (hot, cold), rest (hot) and walk (cold), heat content of the body, humidity under garments during rest and run and time to onset of sweating. No such differences were identified for change in body mass, core temperature during walk (hot) and rest (cold), skin temperature, temperature of skin covered by the garment, humidity under the garments during walk or for any perceptions (thermal sensations, thermal comfort of torso, exertion, wetness). The garment in single jersey wool fabric performed best in both hot and cold conditions. Effects of garments on wearers are often related to properties of the fabrics from which the garments are made. This study shows that only some differences in fabric properties result in measurable thermophysiological and perceptual responses of the garment wearers and underlines the difficulty in predicting performance of garments/persons from laboratory tests on fabrics.     

Differences in wearer response to garments for outdoor activity

The performance of garments for outdoor activity was compared. Three fabrics, each in garments for the upper body, matched garment/wearer dimensions, were worn by 10 athletically ‘well-trained’ males under controlled conditions (hot 32 ± 2°C, 20 ± 2% relative humidity (RH); cold 8 ± 2°C, 40 ± 2% RH) with physical (instrumental) and sensory responses obtained during the trials. Differences in human responses to the fabrics/garments included heart rate, core temperature during run (hot, cold), rest (hot) and walk (cold), heat content of the body, humidity under garments during rest and run and time to onset of sweating. No such differences were identified for change in body mass, core temperature during walk (hot) and rest (cold), skin temperature, temperature of skin covered by the garment, humidity under the garments during walk or for any perceptions (thermal sensations, thermal comfort of torso, exertion, wetness). The garment in single jersey wool fabric performed best in both hot and cold conditions. Effects of garments on wearers are often related to properties of the fabrics from which the garments are made. This study shows that only some differences in fabric properties result in measurable thermophysiological and perceptual responses of the garment wearers and underlines the difficulty in predicting performance of garments/persons from laboratory tests on fabrics.     

绒线漂染综合控制系统研究应用

介绍了一种集中管理,分散控制的计算机温度自动控制系统,该系统控制精度高,控制方法先进,测量手段简单实用,抗下扰能力强,性能价格比好。在天水宏大绒线厂的试运行中取得了良好的绒线染色效果,并取得了显著的经济效益。     

模糊控制在羊毛染色工艺过程中的应用

介绍了羊毛染色工艺过程的模糊控制。以 8751单片机为核心构成控制系统 ,实现了染色工艺程序给定温升过程的计算机控制 ,提高了染色质量 ,降低了能耗 ,取得了较好的经济技术效益。     

电镜羊绒毛图象自动识别方法研究

为了快速地进行羊毛、羊绒的区分和检测,提出了电镜羊戎毛图象的自动识别方法。该方法先用自动阈值法对图象进行二值化,然后用动态聚类的方法检测每根羊绒毛的边界线,再由边界线侵害不同的羊绒毛;接着用Canny算子提取边缘,并进行后处理,在边缘图上,根据羊绒毛图象的鳞片特性,提取羊绒毛的细度和鳞片长度等特征;最后由特征参数通过Bayes判别法进行识别。实验结果表明,该系统对羊绒毛的识别,不仅快速准确,而且与以往的系统相比,在精度和速度上都有显著的提高。     

Meter-scale large area LED-embedded light fabric for the application of fabric ceilings in rooms

We have developed a meter-scale light emitting diode (LED)-embedded light fabric and its weaving machine for application to a light device for fabric ceilings, which have recently become desired for lightweight safe ceilings in Japan and other countries with frequent earthquakes. The LED fabric structure is 1.2-m-wide woven fabric that has 5-mm-wide LED chip-mounted printed circuit board (PCB) tapes as wefts. LEDs are mounted on the tape of PCBs with a reel-to-reel chip mounting system. Then, the LED-mounted tapes are woven with a developed automatic looming machine that aligns the weft with an accuracy of 0.9 mm, which is suitable for precise arrangement of LEDs and wiring to power supply. A 1.2 × 1.2 m LED-embedded light fabric weighing 320 g/m² was woven. The luminance of the LED fabric is 353 lx at a distance of 1 m, which is the luminance of conventional office lighting. The temperature increase of LEDs without a rigid cooling aluminum plate is only 5.8 °C, and the LED fabric is flexible enough to sustain 1,000 bends down to a radius of 3 mm. This LED fabric and its weaving technology will lead to light devices that have lightweight, large area, and high flexibility for fabric ceilings, walls, and other large areas in homes and offices.     

针织物悬垂屈曲的数值模拟

开发虚拟服装试衣系统需模拟织物的悬垂和屈曲,而采用正交异性力学模型不适合织物。为此,笔者基于针织物的细观力学模型,用有限元方法模拟方形针织物片铺在圆桌面上的悬垂和屈曲,该细观模型描述了织物由于其细观针织结构而特有的力学性质。织物片用8结点壳单元离散,这种壳单元被特别设计,能描述织物片在悬垂中发生的大转动。对织物片的屈曲模态进行了分析,对其后屈曲变形进行了计算,最后进行了方形织物片的悬垂和屈曲实验。模拟的结果和实验的观测结果很一致。研究成果为虚拟服装试衣系统的开发奠定了基础。