Real-Time Monitoring System for Rotor Temperature of a Large Turbogenerator Based on SmartMesh IP Wireless Network Communication Technology

In this study,a real-time rotor temperature monitoring system for large turbogenerators using SmartMesh IP wireless network communication technology was designed and tested.The system is capable of providing comprehensive,accurate,continuous,and reliable real-time temperature monitoring for turbogenerators.Additionally,it has demonstrated satisfactory results in a real-time monitoring test of the rotor temperature of various famous large-scale turbogenerators and giant nuclear power half-speed turbogenerators designed and manufactured in China.The development and application of this wireless temperature measurement system would aid in improving the intelligent operation quality,safety,and stability of China’s large turbine generators and even the entire power system.

A Wireless Solution for Train Switchgear Contact Temperature Monitoring and Alarming System Based on Wireless Communication Technology

We present a temperature monitoring and warning system, which is based on wireless communi- cation technology and applied in train switchgear in this paper. The system is consists of three parts, including wireless temperature detection module, inter-vehicle transmission networks module and?remote monitoring server. The switchgear contact temperature data are collected via the wireless temperature detection module and exchanged in inter-vehicle wireless networking by Zigbee modules. Then the temperature of train switchgear cabinets can be monitored remotely through the GPRS wireless communication.

Wireless sensing system for environmental humidity and temperature monitoring

Aiming at the actual demand for monitoring environmental information,a wireless sensing system for temperature and relative humidity(RH)monitoring based on radio frequency(RF)technology and mobile network was designed.This paper introduces the architecture of the system.The system uses AVR micro controller unit(MCU),KYL-1020U RF module and SHT71 to complete real-time temperature and humidity monitoring,and uses SIM900A module to realize remote alarming and monitoring with short message system(SMS)through global system for mobile communication(GSM).Experimental results show that the designed system has good stability of measurement and real-time performance,and it can be used in some small temperature and humidity monitoring occasions.

Real-Time, Automatic and Wireless Bridge Monitoring System Based on MEMS Technology

Currently, the monitoring of bridges in China heavily relies on manual operation, which has several major problems. It generally takes a very long time to complete an inspection process on bridges. The manual data is sometimes unreliable or even wrong in the case of careless operation. The inspection activity itself is dangerous for inspectors, e.g., bridges are located in the sea or river. Some semi-automatic monitoring methods are recently employed, but they are either very expensive or do not work properly. Therefore, the traditional bridge monitoring process becomes an increasing challenge for bridge operators. In this paper, a real-time and automatic bridge monitoring system is presented to meet the bridge monitoring needs, and MEMS （Micro Electro Mechanical Systems） are the key building block in this system. By using the MEMS-based sensors, it is much more efficient and accurate in monitoring bridges with the measurement of inclination, acceleration, displacement, moisture, temperature, stress and other data.

Patient Centered Real-Time Mobile Health Monitoring System

In this paper, we introduce a system architecture for a patient centered mobile health monitoring (PCMHM) system that deploys different sensors to determine patients’ activities, medical conditions, and the cause of an emergency event. This system combines and analyzes sensor data to produce the patients’ detailed health information in real-time. A central computational node with data analyzing capability is used for sensor data integration and analysis. In addition to medical sensors, surrounding environmental sensors are also utilized to enhance the interpretation of the data and to improve medical diagnosis. The PCMHM system has the ability to provide on-demand health information of patients via the Internet, track real-time daily activities and patients’ health condition. This system also includes the capability for assessing patients’ posture and fall detection.

Development and Field Evaluation of a Low-Cost Wireless Sensor Network System for Hydrological Monitoring of a Small Agricultural Watershed

Hydrological monitoring and real-time access to data are valuable for hydrological research and water resources management. In the recent decades, rapid developments in digital technology, micro-electromechanical systems, low power micro-sensing technologies and improved industrial manufacturing processes have resulted in retrieving real-time data through Wireless Sensor Networks (WSNs) systems. In this study, a remotely operated low-cost and robust WSN system was developed to monitor and collect real-time hydrologic data from a small agricultural watershed in harsh weather conditions and upland rolling topography of Southern Ontario, Canada. The WSN system was assembled using off-the-shelf hardware components, and an open source operating system was used to minimize the cost. The developed system was rigorously tested in the laboratory and the field and found to be accurate and reliable for monitoring climatic and hydrologic parameters. The soil moisture and runoff data for 7 springs, 19 summer, and 19 fall season rainfall events over the period of more than two years were successfully collected in a small experimental agricultural watershed situated near Elora, Ontario, Canada. The developed WSN system can be readily extended for the purpose of most hydrological monitoring applications, although it was explicitly tailored for a project focused on mapping the Variable Source Areas (VSAs) in a small agricultural watershed.

Effects of seasonal air temperature variation on airflow and surrounding rock temperature of mines

In underground mines, high air temperatures in the summer months lead to an increase in inlet airflow temperatures. This leads to seasonal thermal pollution in the mines. This paper examines the dynamics and effects of seasonal variation in surface air temperatures and surrounding rock temperatures in deep coal mines. It also examines temperature variations in the main ventilation circuit, working face, and surrounding rock. The study results revealed that airflow temperatures were significantly affected by seasonal air temperature variations. The greater the distance was between the inlet and the wellhead of the ventilation shaft, the less the effect was on temperature. Moreover, slight temperature variations (1.0-3.0 ℃) were observed between various points on the return route during the summer months. Airflow temperatures along the airflow inlet to the return route of the working face first decreased, but then increased. The temperature field of the surrounding rock increased gradually with increased distance between the mine roadway and inlet, with recorded rock temperatures as high as 40.53 ℃. The radius of the heat-adjusting layer was between 28 and 33 m.

Tire Pressure Monitoring System Using SoC and Low Power Design

This paper presents the tire pressure monitoring system (TPMS) by using the system on chip (SoC) mixed signals with the help of Bluetooth transmission and in advantage of low power consumption design. This is to monitor the variations in temperature and pressure of the vehicle’s tire, and the TPMS system is involved. It improves the driver’s safety by automatically detecting the tire pressure and temperature and then warning signal is sent to driver to take a measure, which prevents from accident. The proposed system of tire pressure monitoring system using SoC increases the speed of indication time to the driver by using mixed signals. The inflation of the tire can be avoided by preventing from high temperature and high pressure. Limitation of temperature and pressure in the previous system is also elongated i.e. temperature from 40℃ to 125℃ and pressure from 0 to 750 Kpa. Sensors, wireless communication (Bluetooth dongle) and SoC unit are used to design the low power TPMS. Quantitative results are taken and the analogy between temperature and pressure is also verified. The tested results proved by need of the practical system. Signal conditioning voltage and SoC unit is the trace for low power design TPMS. Finally, the performance of the system is tested and executed by using proteus software given as a real time application.

The Concept and Design of Safety Management Innovation in the Use of Medical Equipment:Design of Real-time Monitoring System for Temperature and Humidity of Infant Incubator Based on Internet of Things in China

Ensuring safety in the use of medical equipment is an important guarantee for clinical diagnosis and treatment.Because medical equipment is mostly electrical and electronic equipment,the suddenness of its failure is inevitable.Although some equipment has regular preventive maintenance and metrological calibration,it is patient-free static calibrated.In China,because of its large population,large patient base,and large use of medical equipment,nurses are too busy taking care of patients and cannot pay attention to the safety of the use of each device.Therefore,we propose using the Internet of Things and IT technology to carry out real-time monitoring and alarming of important parameters of some special,high-risk,and large-used medical equipment,so as to strengthen the safety management of equipment use.Through the management innovation,this article successfully implemented real-time monitoring of the temperature and humidity of the neonatal incubator;and greatly improved the safety in the use of such equipment.

基于无线网络的农产品冷链物流温度监测系统研究

介绍了农产品冷链物流温度监控的必要性,根据系统总体需求分析、总体架构、整体功能和硬件方案设计了监控系统,并基于GPRS网络和ZigBee无线网络设计了系统的硬件部分,从而实现了整个监测系统的目标。试验结果表明:系统可以实时显示冷链温箱内部温度,且能对异常温度进行报警,具有可行性和准确性。

基于STM32的低功耗高精度智能体温无线检测系统

文章设计了以STM32L051C8T6单片机为核心的低功耗高精度智能体温无线检测系统,实现了高精度的体温监测、人性化智能语音播报、稳定的无线传输、低功耗电源管理等功能。该系统传输稳定,抗干扰能力强,续航持久,低辐射,为父母照顾生病发烧的婴幼儿提供了便利。本系统落实科技改变生活,顺应时代发展,解决千万父母的疑难问题。

电机转子温度监测方法研究现状及展望

随着高速电机的发展,转子的温度已成为电机设计和健康监测的重要指标,舰船电机的强电磁工作环境、狭小的气隙、较大的旋转离心力是转子温度监测面临的难题。文中针对电机转子温度的监测方法,主要包括电阻法、红外测温法、电子类传感器测温法、半导体温敏元件法和光纤光栅测温法,阐述了各方法的原理和特点,介绍了转子温度在线监测领域的研究现状和取得的主要成果,重点聚焦光纤布拉格光栅的应用和研究进展,分析总结了各方法的适用性和存在的主要问题,并展望了未来的技术路线和发展方向。

基于无线传感网络的电气设备温度智能监测系统

为防止由于温度异常造成的电气设备故障,提出基于无线传感网络的电气设备温度智能监测系统。利用无线传感网络及ZigBee网络采集节点,低功耗采集并传输电气设备温度信息到监测中心,利用DNN网络构建电气设备温度监测智能分析模型,实现电气设备温度的实时输出与处理。实验表明,该系统的信息传输功耗较低;可精准监测电气设备温度,可通过界面形式展现监测结果。

叠层笼养蛋鸡无线体温监测试验

现代化蛋鸡养殖中,体温是判断蛋鸡是否健康的一项重要指标。为了了解笼养蛋鸡的体温变化规律,利用蛋鸡可穿戴无线体温传感监测系统,对笼养蛋鸡开展全天全时体温监控试验。试验结果表明,正常笼养蛋鸡体温在38.41~41.85℃范围内变化,呈现出一定的昼夜节律特性,全天体温最低点出现在21:00—22:00;发生发热性疫病时蛋鸡平均体温比正常情况升高0.21~1.30℃;早间时段和晚间时段,患病蛋鸡体温异常升高的均值更大,相对于午间时段更易区分正常蛋鸡和异常蛋鸡。叠层笼养蛋鸡体温监测可为建立鸡体温健康判断模型提供理论参考,对实现精准掌握蛋鸡规模化养殖群体健康状态、提高生产效益具有重要的现实意义。

发动机旋转部件温度实时无线测试系统设计

为了在航空发动机试验时,对旋转部件的温度状态进行实时监测,利用铂(Pt)薄膜热电阻温度传感器和STM32,设计了多通道温度实时无线测试系统。该系统以STM32控制多路选择开关和放大器等元器件,并使用其片内模/数转换器(ADC)对多路电信号进行转换,通过无线技术将温度数据发送到上位机。在涡桨发动机试验台完成了对桨叶的温度实时无线测量,解决了旋转部件无法引出信号线进行实时温度监测问题。实验结果表明,该系统的测量精度优于0.1℃,分辨率达到0.01℃。

基于物联网的电动汽车充电系统内外协同温度监控系统设计

针对电动汽车充电过程中因接触不良等原因导致充电部件温度过高问题,设计了一种基于物联网的电动汽车充电系统内外协同温度监控系统,系统由监控主机、ZigBee无线温度终端、移动监控平台等组成。通过车载动力电池管理器系统(BMS)监测数据和外部无线终端温度监测的协同监控,实现温度异常预警并对异常情况进行干预。试验结果表明,该系统能够实时监测电动汽车充电部件的温度信息,有效预防异常高温引发事故,具有一定的实用价值。

测温装置在低压配电系统中的应用

本文归纳总结了低压配电系统中常用的6种测温方式,对所归纳的测温方式进行分析和比较,并对其特点及应用场景作出说明,对测温方案的选用原则做出总结,就常见问题进行讨论和说明。

无线体温传感器iThermonitor■在手术病人核心体温监测中的应用

[目的]探讨无线体温传感器iThermonitor■在手术病人核心体温监测中的应用效果。[方法]选取2018年6月—12月胸外科、神经外科手术病人226例,术前在病人腋窝处粘贴无线体温传感器iThermonitor■监测病人的核心体温,记录手术病人低体温发生率、围术期体温变化及相关因素、术后住院时间及医疗费用。[结果]胸外科手术病人低体温发生率为70.83%,体温跌幅范围为0.008~2.883℃;神经外科手术病人低体温发生率为73.59%,体温跌幅范围为0.007~2.789℃。回归分析显示,手术时长、体质指数(BMI)、年龄是胸外科手术病人体温的影响因素;手术时长、BMI是神经外科手术病人体温的影响因素。胸外科手术病人发生低体温,术后住院时间与费用增高;神经外科手术病人发生低体温,术后住院时间与费用减少。[结论]手术室护理人员应根据手术病人情况,采用智能化监测方法进行全程链式体温管理,保证手术病人的安全。

基于无线温度传感器的分接箱电缆接头高温监测预警方法

现有预警方法精度较低,文章提出一种基于无线温度传感器的分接箱电缆接头高温监测预警方法。该方法通过无线温度传感器实时监测电缆接头的温度,并分解温度序列,以深入了解温度变化的趋势和规律。该方法通过设定电缆接头高温预警阈值,能够及时发现并应对异常高温情况。实验结果表明,该方法精度较高,能够迅速、准确地发出预警信号。

基于无线通信技术的变电站设备温度监测系统设计

文章针对变电站设备温度监测的需求,提出了一种基于无线通信技术的变电站设备温度监测系统设计方案。该系统采用模块化设计,集成了温度传感、无线通信、数据处理与存储以及电源管理等关键模块,实现对变电站设备的实时温度监测,显著提升了运维效率和系统可靠性。通过仿真实验证实,该系统在监测精度、实时性、数据处理效率及能耗等方面均展现出优异性能,在变电站设备温度监测领域具有巨大的应用潜力。