Abstract
Environmental quality is a great concern to everyone, in order to realize the collection, upload, management, and visualization of parameters of atmospheric environment in real time. We propose a cheap, low-power, and fast deployment wireless sensor node for environmental monitoring, consisting of STM32 MCU, ESP8266, light sensor, rain sensor, UV sensor, seven-in-one sensor (including temperature, humidity, PM2.5, PM10, CO2, formaldehyde, and TVOC), and solar automatic tracking module. A customized μC/OS-III runs on the node, which controls the transmission of environment parameters collected by each sensor to the cloud server through the wireless network, and then the server receives, stores, and visualizes the data. In actual test, the node collects data once an hour, and the running power of the node is low and stable. Experimental results show that the node could achieve accurate collection and transmission and display the environmental data, and solar automatic tracking module could meet long-term running of the node in the night and continuous rainy days.
Highlights
With the development of human society, environmental pollution has become the first problem to be solved in the process of human development
National Aeronautics and Space Administration (NASA) [2] points out that glaciers have shrunk, ice on rivers and lakes is melting ahead of time, plant and animal habitats have changed, and trees bloom ahead of expected dates due to global climate change. e main impact on climate change is mainly caused by CO2 emissions according to the European Commission [3]
As environmental quality is directly related to human sustainable development, real-time atmospheric environment monitoring is the top priority of environmental governance
Summary
With the development of human society, environmental pollution has become the first problem to be solved in the process of human development. As environmental quality is directly related to human sustainable development, real-time atmospheric environment monitoring is the top priority of environmental governance. Journal of Electrical and Computer Engineering causes specific damage to the auditory system, and urban light pollution and heat island effect have some impact on human beings. Us, in this paper, environmental parameters such as TVOC, noise, CO2, formaldehyde, UV intensity, light intensity, PM2.5, PM10, temperature, and humidity are monitored by the wireless sensor node. In order to conveniently and accurately monitor the atmospheric environment data, it is necessary to develop small-scale automatic environmental monitoring sensor nodes, which require miniaturization, intelligence, and scalability and can automatically connect to the Internet, automatically collect data, and send the data to the host server in intervals, so as to achieve stability and low-cost running, and can be deployed in batches. In order to meet the continuous demand of power supply, STC89C52RC is used to develop a solar energy automatic tracking module to collect solar energy and convert it into electrical energy, so as to ensure the power demand of the whole system
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