Design of Warehouse Temperature and Humidity Detection System

2013 ◽  
Vol 341-342 ◽  
pp. 1005-1008
Author(s):  
Xin Wang ◽  
He Pan ◽  
Hong Yan Gao
Keyword(s):  
Temperature Sensor ◽  
Humidity Sensor ◽  
Detection System ◽  
Humidity Control ◽  
Temperature And Humidity ◽  
Digital Temperature Sensor

With the wide application of temperature and humidity detection system, the requirements and standards of which in different industries and fields are various. After the analysis of domestic and foreign warehouse intelligent temperature and humidity control, the author has found a series of factors of that, and then puts forward a design of scheme of temperature and humidity detection system based on AT89S51, together with a plurality of digital temperature sensor DS18B20 and the humidity sensor HS1101, temperature and humidity detection system is formed.

Research on Control System of Energy-Saving Greenhouse

2013 ◽  
Vol 448-453 ◽  
pp. 1312-1315
Author(s):  
Qun Li
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Humidity Sensor ◽  
Environmental Parameters ◽  
Single Chip ◽  
Greenhouse Production ◽  
Temperature And Humidity ◽  
Digital Temperature Sensor ◽  
The Cost ◽  
Energy Intensive Industries

Energy-saving and environmental protection has become the theme of the 21st century. Greenhouse is an energy-intensive industries. Every year, 35% of energy consumption on agricultural production is used for greenhouse heating in the world, which accounts for 15-40% of the cost of greenhouse production. For improving energy efficiency and protecting the environment, the reasonable control of greenhouse environmental parameters is significant. The design of solar greenhouse real-time environment monitoring and automatic control system is based on 8051 single-chip in the thesis. The temperature and humidity signal are obtained from DS18B20 digital temperature sensor and IH3605 humidity sensor. When the greenhouse temperature exceeds the set temperature, the device can be started by perform timely processing, then the user can read LED digital display temperature and humidity values.

Temperature Detecting System of Beer Fermentation Based on DS18B20

2010 ◽  
Vol 108-111 ◽  
pp. 898-902 ◽  
Author(s):  
Fen Ping Zhou ◽  
Hong Tao Ma ◽  
Bing Dong Sui ◽  
Jia Mo Sun
Keyword(s):  
Temperature Sensor ◽  
Detection System ◽  
Temperature Sensors ◽  
Beer Fermentation ◽  
Temperature Detection ◽  
Temperature Detector ◽  
High Intelligence ◽  
System Maintenance ◽  
Digital Temperature Sensor ◽  
Temperature Test

This Paper introduces a temperature detection system in beer fermentation. A temperature monitoring system with characteristics of bus topology structure is composed of industrial computer, temperature detector, bus converter, transmission bus and especially 1-wire digital temperature sensor DS18B20. Four-core cable is used to form a tree-like or star-like network, in which 54 digital temperature sensors existing on 18 fermentation tanks can be connected. The quantity of junction wires between temperature sensor and computer will be reduced greatly. Temperature detector provides power supply for bus converter and DS18B20 through Four-core cable. Because bus converter has used hardware fault detecting technology, the fault temperature sensor can automatically detach from the main bus and will not affect normal working of other sensor in network. So to solve the problem of a certain sensor or branch's damage causing the paralysis of entire bus. The length of detecting temperature bus can reach more than 500 meters. These all make system maintenance and expansion easy. The experiments show that this system is characterized by high intelligence, high-precision, capability of making temperature test on multi-points and compensating function. The method has a good applicable value to the temperature test.

scholarly journals CONTROL SYSTEM FOR TEMPERATURE, HUMIDITY AND TIME PARAMETERS ON ZELIO SMART RELAY-BASED WATERING PROCEDURES

2019 ◽  
Vol 1 (1) ◽  
pp. 12-16
Author(s):  
Irfan Arif ◽  
Akbar Sujiwa
Keyword(s):  
Control System ◽  
Ambient Temperature ◽  
Temperature Sensor ◽  
Humidity Sensor ◽  
Ambient Air ◽  
Air Humidity ◽  
Human Power ◽  
Temperature And Humidity ◽  
Time Parameters

Watering plants usually done manually using human power. that has risk negligence and inaccuracy. also, in time and cost is not efficient. Another factor that can affect the quality of crops is a factor of humidity and temperature. For those reason, writers made a tool that can work according to the level of humidity and temperature automatically and continuously. This tool uses Zelio Smart Relay as automatic controller. The 808H5V5 humidity sensor and LM35 temperature sensor is used as input. The LM35 temperature sensor detect the ambient temperature, where as 808H5V5 humidity sensor detect ambient air humidity, and time of watering adapted to the Smart Relay timer. The entire sensor input is programmed using ZELIO SOFT 2. Setting the temperature and humidity when the detected 30oC and >70% as well as the timeshows at 08.30 – 09.00 am and 16.00 – 16.30 pm the pump will automatically ON.

Granary Temperature and Humidity Detection System Based on MCU

2012 ◽  
Vol 605-607 ◽  
pp. 941-944
Author(s):  
Lin Jin ◽  
Tong Zhao
Keyword(s):  
Data Acquisition ◽  
Detection System ◽  
Serial Communication ◽  
Control Unit ◽  
Humidity Control ◽  
Temperature And Humidity

The granary temperature and humidity detection system, it is used AT89C51 as the main control core, and used the RS232 bus communication to realize the granary temperature and humidity control. The host microcontroller is depended on the AT89C51 to drive, and to display temperature, humidity and brightness, at the same time through the keyboard to enter the master information. The attached master machine used STC12C2052AD as the control unit, the Digital Temperature and humidity data acquisition used sensor SHT11, in each of the master machine and attached machine use of serial communication. When the temperature and humidity exceed the set values, it will alarm.

Flowers Temperature and Humidity Control System Based on Applied Mechanics

2012 ◽  
Vol 214 ◽  
pp. 644-648
Author(s):  
Wen Mian Shao ◽  
Hai Tao Li ◽  
Li Hong Jin
Keyword(s):  
Control System ◽  
High Reliability ◽  
Cost Effective ◽  
Auxiliary Equipment ◽  
Humidity Control ◽  
Digital To Analog Converter ◽  
Wide Range ◽  
Temperature And Humidity ◽  
Working Principle ◽  
Digital Temperature Sensor

Aim to the current shortcomings manual control system of greenhouse flowers and plants, designed of the temperature and humidity control system, introduced the system, working principle and structure in detail to the composition of the various parts of hardware and software components of the processes, PLC as the core of the system, chosen DS18B20 single-wire digital temperature sensor, IH3605 humidity sensors, digital to analog converter, digital display, auxiliary equipment, implemented the automatic control of the flower greenhouse temperature and humidity, had characteristic such as simple structure, high reliability, cost-effective, good temperature, to promote the value of a wide range and so on

Granary Temperature and Humidity Detection System

2012 ◽  
Vol 459 ◽  
pp. 181-184
Author(s):  
Lin Jin ◽  
Tong Zhao ◽  
Qiang Liu
Keyword(s):  
Data Acquisition ◽  
Humidity Sensor ◽  
Detection System ◽  
Serial Communication ◽  
Measuring System ◽  
Single Chip ◽  
Communication Mode ◽  
System Realization ◽  
Temperature And Humidity ◽  
Humidity Monitoring

The granary temperature and humidity measuring system , realization P89V51RD2 single chip as the main control core, and a RS232 bus communication mode of granary temperature and humidity monitoring system. Host by P89V51RD2 master MCU driving, and display temperature, humidity, and Luminance, entering commands by keyboard. Attached master machine used 51 core chip STC12C2052AD , digital temperature and humidity sensor SHT10 is used for data acquisition, master and attached master machine all use of serial communication. When the temperature and humidity calibration value is exceeded, it will alarm at the same time.

Home Automation Using Bluetooth

2020 ◽  
pp. 675-678
Author(s):  
Mukesh Mahajan ◽  
Astha Dubey ◽  
Samruddhi Desai ◽  
Kaveri Netawate
Keyword(s):  
Temperature Sensor ◽  
Humidity Sensor ◽  
The Other ◽  
Automation System ◽  
Home Automation ◽  
Wireless Devices ◽  
Home Appliances ◽  
Home Automation System ◽  
Condition Systems

This paper reviews basically about Bluetooth based home automation system. It is controlled by PIC microcontroller. Home automation can be defined as the ability to perform tasks automatically and monitor or change status remotely. These include tasks such as turning off lights in the room, locking doors via smartphone, automate air condition systems and appliances which help in the kitchen. Now a days several wireless devices are available such as Bluetooth, Zigbee and GSM. Since Bluetooth is low in cost than the other two and hence is used more. In this paper we have described the methods of automating different home appliances using Bluetooth and pic microcontroller. Different sensors are involved in this system to advance and make it smarter. Sensors such as temperature sensor, liquid sensors, humidity sensor etc. can be used.

scholarly journals A Digital Improvement—Trimming a Digital Temperature Sensor with EEPROM Reprogrammable Fuses

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1700
Author(s):  
Anca Mihaela Vasile (Dragan) ◽  
Alina Negut ◽  
Adrian Tache ◽  
Gheorghe Brezeanu
Keyword(s):  
Standard Deviation ◽  
Power Supply ◽  
Temperature Sensor ◽  
Experimental Results ◽  
Temperature Error ◽  
Thermal Sensor ◽  
Memory Cells ◽  
Temperature Range ◽  
Read Only Memory ◽  
Digital Temperature Sensor

An EEPROM (electrically erasable programmable read-only memory) reprogrammable fuse for trimming a digital temperature sensor is designed in a 0.18-µm CMOS EEPROM. The fuse uses EEPROM memory cells, which allow multiple programming cycles by modifying the stored data on the digital trim codes applied to the thermal sensor. By reprogramming the fuse, the temperature sensor can be adjusted with an increased trim variation in order to achieve higher accuracy. Experimental results for the trimmed digital sensor showed a +1.5/−1.0 ℃ inaccuracy in the temperature range of −20 to 125 ℃ for 25 trimmed DTS samples at 1.8 V by one-point calibration. Furthermore, an average mean of 0.40 ℃ and a standard deviation of 0.70 ℃ temperature error were obtained in the same temperature range for power supply voltages from 1.7 to 1.9 V. Thus, the digital sensor exhibits similar performances for the entire power supply range of 1.7 to 3.6 V.

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