Department of Laser Technologies, FTMC-Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania.
Department of Physical Technologies, FTMC-Center for Physical Sciences and Technology, Sauletekio Al. 3, LT-02300 Vilnius, Lithuania.
Sensors (Basel). 2022 Jul 18;22(14):5343. doi: 10.3390/s22145343.
The Internet of Things (IoT) technology and its applications are turning real-world things into smart objects, integrating everything under a common infrastructure to manage performance through a software application and offering upgrades with integrated web servers in a timely manner. Quality of life, the green economy, and pollution management in society require comprehensive environmental monitoring systems with easy-to-use features and maintenance. This research suggests implementing a wireless sensor network with embedded sensor nodes manufactured using the Selective Surface Activation Induced by Laser technology. Such technology allows the integration of electrical circuits with free-form plastic sensor housing. In this work, a low-cost asynchronous web server for monitoring temperature and humidity sensors connected to the ESP32 Wi-Fi module has been developed. Data from sensor nodes across the facility are collected and displayed in real-time charts on a web server. Multiple web clients on the same network can access the sensor data. The energy to the sensor nodes could be powered by harvesting energy from surrounding sources of electromagnetic radiation. This automated and self-powered system monitors environmental and climatic factors, helps with timely action, and benefits sensor design by allowing antenna and rf-circuit formation on various plastics, even on the body of the device itself. It also provides greater flexibility in hardware modification and rapid large-scale deployment.
物联网 (IoT) 技术及其应用正在将现实世界的事物转变为智能对象,将所有事物集成在一个通用基础设施下,通过软件应用程序管理性能,并通过集成的网络服务器及时提供升级。社会对生活质量、绿色经济和污染管理的需求,需要具有易用性和易于维护功能的综合环境监测系统。本研究建议采用嵌入式传感器节点的无线传感器网络,这些传感器节点采用激光技术诱导的选择性表面激活技术制造。这种技术允许将电路与自由形状的塑料传感器外壳集成在一起。在这项工作中,开发了一种用于监控连接到 ESP32 Wi-Fi 模块的温度和湿度传感器的低成本异步网络服务器。从设施中各个传感器节点收集的数据实时显示在网络服务器的图表上。同一网络上的多个网络客户端可以访问传感器数据。传感器节点的能量可以通过从周围的电磁辐射源收集能量来供电。该自动化和自供电系统监测环境和气候因素,有助于及时采取行动,并通过允许在各种塑料上形成天线和射频电路,甚至在设备本身的主体上形成天线和射频电路,从而为传感器设计带来益处。它还提供了更大的灵活性来进行硬件修改和快速大规模部署。