Temperature and Humidity Measurement System for Grain Storage Based on nRF905

2011 ◽  
Vol 383-390 ◽  
pp. 5012-5016 ◽  
Author(s):  
Shu Lian Yang ◽  
Jin Shen ◽  
Zhen Mei Li ◽  
Bo Xue Tan ◽  
Kai Zhao
Keyword(s):  
Measurement System ◽  
Data Transmission ◽  
Simple Structure ◽  
Wireless Transmission ◽  
Grain Storage ◽  
Single Chip ◽  
Humidity Measurement ◽  
Following Instructions ◽  
Sample Data ◽  
Temperature And Humidity

A temperature and humidity measurement system for grain storage is developed. In the system, digital temperature and humidity sensors and single chip UHF transceiver were used. The system consists of the host controller used to manage extension device in each granary and the data transmission, and extension devices fixed in each granary were used to periodically measure temperature and humidity and transmit temperature and humidity data following instructions from host controller. Besides the advantage of simple structure, being easy to maintain and good measuring stability, the system characterized by wireless transmission of temperature and humidity sample data, which make it suitable for spread around grain storage.

Development of Bioimpedance Sensors and Measurement System for Biomedical In-Vitro Applications

2021 ◽  
Vol 7 (2) ◽  
pp. 496-499
Author(s):  
Stadler B. Eng. Sebastian ◽  
Herbert Plischke ◽  
Christian Hanshans
Keyword(s):  
Measurement System ◽  
Low Cost ◽  
Measurement Data ◽  
Impedance Measurement ◽  
Microtiter Plate ◽  
Label Free ◽  
Single Chip ◽  
Do It Yourself ◽  
Store And Forward

Abstract Bioimpedance analysis is a label-free and easy approach to obtain information on cellular barrier integrity and cell viability more broadly. In this work, we introduce a small, low-cost, portable in vitro impedance measurement system for studies where a shadow-free exposure of the cells is a requirement. It can be controlled by a user-friendly web interface and can perform measurements automated and autonomously at short intervals. The system can be integrated into an existing IoT network for remote monitoring and indepth analyses. A single-board computer (SBC) serves as the central unit, to control, analyze, store and forward the measurement data from the single-chip impedance analyzer. Various materials and manufacturing methods were used to produce a purpose-built lid on top of a modified 24-well microtiter plate in a “do it yourself” fashion. Furthermore, three different sensor designs were developed utilizing anodic aluminum oxide (AAO) membranes and gold-plated electrodes. Preliminary tests with potassium chloride (KCl) showed first promising results.

Monitoring and Warning System of Highway Environmental Parameters Based on GSM

2013 ◽  
Vol 329 ◽  
pp. 22-25
Author(s):  
Zhuo Jun Shen
Keyword(s):  
Data Transmission ◽  
Detection System ◽  
Warning System ◽  
Environmental Parameters ◽  
Mobile Network ◽  
Communication Technologies ◽  
Short Message ◽  
Single Chip ◽  
Message Service ◽  
Highway System

Mobile network signal is the basic coverage along the highway, and the GSM mobile communication technologies provide a powerful and reliable short message service and data transmission services, a variety of applications based on GSM data transmission platform is also being developed. The paper focuses on highway visibility detection and speed detection, system is constitute of a communication unit that uses the TC35i module and STC89C54 single chip, As well as hardware and software design of the method, GSM precautions in the design process of the highway system are briefly described.

Temperature Cycle Measurement System Based on Single Chip Computer

2010 ◽  
Vol 428-429 ◽  
pp. 487-492
Author(s):  
Xi Yin ◽  
Xiao Jun Wang ◽  
Yong Que Xie
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Low Cost ◽  
Temperature Cycle ◽  
Engineering Practice ◽  
Lead Wire ◽  
Single Chip ◽  
Piecewise Linearization ◽  
Single Chip Computer ◽  
Precision Temperature

This thesis introduces a low cost and high precision temperature cycle measurement system with adoption of PT100 as temperature sensor, with single chip computer as the core. The method of sub-three-wire connection is proposed for engineering practice, then, can eliminate the effects of lead wire resistance and simplify the external cable connection. We discuss and research circuit component selection, circuit design, improving system reliability, and a software method of piecewise linearization process is adopted, thus we ensure exact and reliable measure and the system characteristic of low cost and high precision.

A data transmission and time measurement system for bit commitment experiment

2014 ◽  
Author(s):  
Hong-fei Zhang ◽  
Jian-min Wang ◽  
Ke Cui ◽  
Sheng-zhao Lin ◽  
Dong-xu Yang ◽  
...  
Keyword(s):  
Measurement System ◽  
Data Transmission ◽  
Time Measurement ◽  
Bit Commitment
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