Humidity Data Acquisition Research Articles

Development of an Arduino-based Multi-Channel Temperature and Relative Humidity Data Acquisition System for Domestic and Industrial Applications

Losses incurred during postharvest processes of food and other agricultural products in the rural and some urban areas of West African countries have been attributed to poor thermal conditions of the indoor air. The quality of these products at storage or after thermal processes such as drying, cooking, frying, etc. has been identified to be majorly dependent on the temperature and humidity of the air. The objective of this study was therefore to develop a low cost Arduino based multi-channel temperature and humidity data acquisition system for domestic and industrial applications. It comprises an ATmega 328P controller type, fourteen (14) DS18B20s temperature sensors, and six (6) DHT22 humidity sensors. The system was configured and programmed to log in readings every 30 minutes (30 min) on the SD card or through the Bluetooth module in Excel format directly into the computer. The results from the experiments conducted with this data acquisition system demonstrated reliability because they were within the reasonable and acceptable range for commercial logging devices.

Design and research on multi-sensory comfort data acquiring of tight sportswear in motion

This study aims to achieve intelligent monitoring of clothing comfort in motion, providing data and technical assistance for the research of comfort in motion and an efficient design foundation for sportswear comfort optimization. In view of the present situation of smart wear used in clothing comfort research, this paper primarily presents the construction of an acquisition system in motion, including temperature, humidity, and pressure data acquisition device, data pre-processing, data storage, and so on, which was called the ATHPD system for short. With the help of this acquisition system, tights in motion may now be tested for pressure, heat, and humidity for the first time. It can also transmit data wirelessly. Meanwhile, in order to verify the effectiveness of the acquisition system, by comparing the measurement data of the acquisition system (ATHPD system) with the measurement data of existing acquisition equipment (AMI3037 pressure measurement system, DS1923 button temperature and humidity recorder). The findings demonstrate that there is no significant difference between the data collected by the two methods, which proves the reliability of the acquisition system in this paper. The system guarantees the same quantity of temperature, humidity, and pressure data to be gathered at the same time and the consistency of the corresponding time points and also provides relevant data support for the evaluation and prediction model construction of human comfort in motion.

Greenhouse Monitoring System Using Wireless Sensor Networks (WSN) Based on IoT

Abstract: The popularization of greenhouse cultivation in agriculture is becoming more and more common, providing sufficient vegetables throughout the year. However, the traditional indoor temperature and humidity monitoring in greenhouses still requires manual measurement on a regular basis, which is inefficient and has poor accuracy. In order to solve the problem of greenhouse temperature and humidity monitoring, a time-sensitive, convenient, and easy-to-use remote monitoring system for greenhouse temperature and humidity is designed. The system collects data with an Arduino Uno control board and uploads and stores data on the ThingSpeak cloud platform with an ESP8266 control board. The DHT22 high-precision sensor is used as the temperature and humidity data acquisition module. And use the browser or smart phone to view remotely at any time. The analysis and test show that the system has high accuracy and low cost. low cost. It is a reliable monitoring system that has a great role in promoting greenhouse vegetable cultivation

Temperature and humidity data acquisition design based on microcontroller ATMEGA8

The need for fast and accurate information is urgently needed to support human performance in various areas, including in the field of meteorology. Information about the weather parameters such as temperature and relative humidity on certain areas need to know quickly and accurately. For example the recording of temperature and humidity of a city, the mountains, or in disaster areas, it will definitely be easier if can be recorded automatically and continuously in a certain time. Therefore it needs a tool that can find out the weather parameters such as temperature and relative humidity on a certain position continuously and automatically. In this case the system can use data acquisition and data logger.
 System design used in this study consisted of DHT11 temperature and humidity sensor with digital output that is already terkalibrasi, microcontroller ATmega8 as the data processor of the DHT11 and the results will be displayed in the LCD. the display on the LCD always updated every 3 seconds.
 The results showed that "Temperature And Humidity Data Acquisition Design Based On Microcontroller ATmega8" Media has successfully created according to the specifications of the tool are expected.

A Universal Power Management Strategy Based on Novel Sound‐Driven Triboelectric Nanogenerator and Its Fully Self‐Powered Wireless System Applications

AbstractWith the development of the Internet of Things (IoT), the power supply to trillions of IoT nodes has become a serious challenge. It is of significant importance to propose a rational power management scheme for constructing fully self‐powered systems using triboelectric nanogenerators (TENG). In this study, as inspired by an embroidery hoop, a new type of TENG without the Helmholtz resonant cavity is developed for collecting sound energy, which can generate the Voc and Isc up to 500 V and 124 µA, respectively at a resonance frequency of 170 Hz and sound pressure of 110 dB. Furthermore, the sound‐driven TENG integrated with a specially designed power management circuit derived from the universal power management strategy (PMS) can successfully drive a commercial narrow band‐IoT wireless node, which realizes periodic temperature and humidity data acquisition and transmission. With the same strategy, an electric switch and a temperature and humidity acquisition system based on Bluetooth technology can also be powered by a contact‐separated TENG and a wind‐driven TENG, demonstrating excellent versatility, adaptability, and universality of the PMS. This study provides a novel solution for the application of TENG in the field of low‐frequency IoT in local and wide areas.

Multi-objective scheduling model of green production based on genetic algorithm under agricultural supply side structure

In order to improve the comprehensive economic, ecological and social benefits, a multi-objective scheduling model of green production based on the supply side structure of agriculture is proposed. The objective function is constructed from three aspects of economic benefit, social benefit and ecological benefit respectively. The inheritance algorithm is introduced to iteratively select operation, cross operation and variation operation, so as to achieve the optimal generation of the conditions, so that the optimal scheduling solution of the multi-objective scheduling model is obtained. The experimental results show that the error rate of temperature and humidity data acquisition is less than 0.01%, which can achieve multi-objective scheduling of green production with high precision. The output value of planting, animal husbandry, forestry and fishery all increased by 0.01-1 billion Yuan. The research method can obviously improve the output value of each industry and has a better application prospect.

Research on monitoring and environmental control of farmland operation based on multi-sensor data fusion

Because traditional methods fail to accurately obtain environmental sensing data, resulting in poor farmland operation monitoring performance and low agricultural production efficiency, the impact of farmland operation monitoring technology on environmental regulation is proposed. The adaptive fusion method is introduced to fuse the collected farmland environmental data to make the multi-sensor data fusion result optimal. The soil temperature, humidity, oxygen, carbon dioxide and plant height environmental data acquisition sensors are activated to obtain field environmental sensing data, and determine the function keys based on the early warning value and time value. Adjustments were made to the farmland environment based on the judgment results with focus on the environmental control of farmland operation monitoring technology impact. The experimental results show that after the introduction of farmland operation monitoring technology, the accuracy of farmland environment monitoring is higher and the error of farmland environment regulation is lower, which meets the basic needs of users.

Design of wind tunnel temperature and humidity data acquisition system based on CAN/SimpliciTI hybrid network

In order to obtain the temperature and humidity information of the Test section in the low-speed flue gas wind tunnel in real time, a low-power wind tunnel temperature and humidity data acquisition system based on CAN/SimpliciTI hybrid network is designed. The CAN network is used as the main network, while the SimpliciTI low-power wireless sensor network as the sub-network. The terminal ED nodes of sub-network acquire the ambient temperature and humidity information of the location and then transmit them to the gateway node by wireless mode. In the gateway node，the SimpliciTI messages are converted into CAN messages, and finally, they are delivered to the main network. The host computer communicates with the gateway node through the CANalyst-II protocol analyzer, and finally gets the temperature and humidity information of each ED terminal. Compared with the traditional bus type communication system, the system has the advantages of less wiring, simple network hardware, low power consumption, and convenient maintenance.

A Temperature and Humidity Monitoring System of Grain Depot Based on WSN

The traditional temperature and humidity monitoring system of grain depot used to realize in wired network which needs to deploy a large number of cables. The maintainability and scalability is poor. We present a solution of monitoring temperature and humidity of grain depot based on wireless sensor network (WSN). The temperature and humidity data acquisition and control node is composed of digital temperature and humidity sensor and RF wireless chip and the main control chip. Based on the Zigbee technology, these nodes construct a WSN in Ad Hoc in order to collect, monitor and control the temperature and humidity in the monitoring area. The convergence node in the WSN will packed acquisition data from other nodes and then transmit them to a remote monitoring host through the GPRS wireless mobile network. By means of the statistical analysis of the real-time data collected, the monitoring host can alarm and feedback control the temperature and humidity of grain depot. The experimental results show that the system has strong scalability, low power consumption and high efficiency.

Application of Temperature and Humidity Acquisition System in the Smart Clothing Based on Wireless Sensor Networks

In this paper, we use ZigBee technology as a platform, from the perspective of the practical application of smart rescue clothing, and then designed a temperature and humidity data acquisition system based on ZigBee wireless network technology. Combining electronic information with clothing as a starting point to build a wireless sensor network through wireless communication technology, then let sensor nodes which joined the network collect and monitor the temperature and humidity, thus, it avoided the cost of wiring problems and issues wired network. Meanwhile, using VC++ for acquisition system for the preparation of the PC program, draw a graph of temperature changes, which clearly reflect the real-time temperature trends. It is convenient for person to make remote monitoring. In this paper, the wireless sensor technology will be embedded on smart clothing, convenient and easy to carry, which has a strong innovative and practical value.

Exploration of Humidity Data Acquisition System Based on Single Chip Microcomputer

Exploring a kind of the humidity data acquisition system with higher performance-price ratio is vital to the environmental monitoring. At the present work, a novel of the humidity data acquisition system has been developed so as to collect and store the environmental humidity data. It consists of humidity sensor of DHT11£¬LED digital display and single chip microcomputer (SCM) of AT89S52. AT89S52 was used as the control chip which assembled with humidity sensor of DHT11 and digital display. Moreover, the behavior of humidity data acquisition was simulated with the software of Proteus; the results show that this designed system can collect the humidity data at bigger range. Therefore, the designed humidity acquisition system effectively achieves humidity monitoring, and has advantages of smaller volume, higher performance-price ratio, and portable.

Library Temperature and Humidity Remote Control System Based on Micro Controller Unit

This thesis has designed a remote control system which takes Micro controller Unit AT89S51 as the core for library temperature and humidity.The system consists of temperature and humidity data acquisition, wireless transceiver, Micro controller Unit and PC data display modules. The system can detect and control temperature and humidity of library remotely in real time, avoid the traditional manual labor tedious, and contribute to the storage of paper documents.

Sistema automatizado para aquisição de dados de umidade relativa do ar

Devido à importância do ambiente na produção animal e vegetal e, portanto, controle ambiental adequado, o trabalho propõe como objetivo a construção de um sistema de aquisição automatizada de dados de umidade relativa do ar, utilizando-se de microcontrolador de dimensões reduzidas e de baixo custo. A calibração do sensor de umidade relativa foi realizada em três etapas de simulação desenvolvidas em laboratório: caixas perfuradas, dessecador sem tampa contendo sílica-gel em seu fundo e psicrometria. As etapas de calibração, utilizando situações naturais e artificiais, bem como as metodologias desenvolvidas, apresentaram resultados que permitem concluir que o sistema pode ser utilizado com segurança no monitoramento dessa variável.