Abstract
The Internet of Things is an emerging information industry. Applying the information collection, transmission, and processing technologies in the Internet of Things technology to environmental monitoring, environmental emergency, and other environmental protection supervision fields will greatly improve the speed and accuracy of environmental supervision and facilitate the scientific development of environmental protection. Through the Internet of Things, people can obtain a large amount of reliable real-time information, and it is not easy to be affected by time, place, and environment, while the wireless sensor network has the advantages of easy installation and low cost, so environmental monitoring through the Internet of Things is the future development trend. In this paper, in view of the current situation of water scarcity and serious water pollution in China, combined with the development trend and advantages of the Internet of Things (IoT), and based on the inadequacy of the existing microbial sensor data collection equipment, we propose a design scheme of microbial concentration monitoring system for waters based on IoT. The system is based on Zig Bee wireless sensor network to build a common data acquisition platform and design special hardware to carry out high-precision microbial sensor data acquisition in water and through the PC to complete the real-time measurement data storage, waveform display, and data processing. In this paper, the schematic diagram and PCB board design of the system hardware module NUC120 main control board, CC2530 RF board, Wi-Fi wireless communication module, and high-precision ADC acquisition module are completed and fabricated. Then, the four modules are combined to realize the development of the data aggregation node and data acquisition node of the dedicated Zig Bee wireless network hardware device.
Highlights
Academic Editor: Zhihan Lv e Internet of ings is an emerging information industry
Transmission, and processing technologies in the Internet of ings technology to environmental monitoring, environmental emergency, and other environmental protection supervision fields will greatly improve the speed and accuracy of environmental supervision and facilitate the scientific development of environmental protection. rough the Internet of ings, people can obtain a large amount of reliable real-time information, and it is not easy to be affected by time, place, and environment, while the wireless sensor network has the advantages of easy installation and low cost, so environmental monitoring through the Internet of ings is the future development trend
In view of the current situation of water scarcity and serious water pollution in China, combined with the development trend and advantages of the Internet of ings (IoT), and based on the inadequacy of the existing microbial sensor data collection equipment, we propose a design scheme of microbial concentration monitoring system for waters based on IoT. e system is based on Zig Bee wireless sensor network to build a common data acquisition platform and design special hardware to carry out high-precision microbial sensor data acquisition in water and through the PC to complete the real-time measurement data storage, waveform display, and data processing
Summary
In order to meet the requirements of low-power wireless communication for IoT, the wireless communication technology standards used include Ir DA, Bluetooth, and Zig Bee, and their characteristics are introduced as follows [14]. Zig Bee uses IEEE 802.15.4 protocol, it is a new generation of wireless sensor network technology with very low complexity, cost, and power consumption, its communication rate is 20∼250 kpbs, mainly applicable to the field of automatic control and remote control with low-rate data transmission, and it has the following advantages [17]. E application of Zig Bee wireless sensor network technology to water microbial concentration monitoring has the following advantages [19]:. With the use of battery power, the equipment can work normally for a long time, which can effectively reduce the system maintenance cost (2) Easy system expansion: Zig Bee network has large capacity, a star structure Zig Bee network can theoretically support up to 1 coordinator and 65536 end devices, and multiple Zig Bee networks can exist in the same area. Erefore, the need to find a suitable assessment method is urgent, to establish a microbial safety risk assessment system, because there is a possible occurrence of microbial concentration problems to analyze, to be able to give accurate warnings or forecasts before unsafe events will occur, and to truly prevent problems before they occur
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