Design of Wireless Temperature Measurement System for Chicken Hatch Field Based on LabVIEW

2015 ◽  
Vol 742 ◽  
pp. 186-190
Author(s):  
Jiao Mo ◽  
Ming Zhe Liu ◽  
Jian Bo Yang ◽  
Xu Wang
Keyword(s):  
Temperature Measurement ◽  
Real Time ◽  
Measurement System ◽  
Temperature Data ◽  
Design System ◽  
Real Time Processing ◽  
Display Module ◽  
Wireless Data Transmission ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

Aiming at the influence of temperature on the rate of chicken’s hatchability in hatch field, this paper uses a flexible wireless VISA communication technology based on LabVIEW to measure and control the temperature in process of chicken hatching. The hardware part was composed of microcontroller C8051F530, digital temperature sensor DS18B20, wireless data transmission module nRF and display module HB240128 for real-time acquisition and processing of temperature data. The software part was written by graphical programming software LabVIEW, and used it to design system interface for functions of real-time processing of temperature data, waveform display, threshold alarm etc. The system can be implemented by hardware circuit itself and computer system interface for the temperature control, which enhanced flexibility of the system and was conducive to troubleshoot interference problems. The test results show that the temperature measurement system was characterized by simple operation, easy maintenance, steady performance and high accuracy.

Design of Temperature Measurement System Based on Microcontroller

2014 ◽  
Vol 513-517 ◽  
pp. 4039-4042
Author(s):  
Cao Rui ◽  
Kong Jun Bao
Keyword(s):  
Temperature Measurement ◽  
Real Time ◽  
Measurement System ◽  
Low Cost ◽  
Digital Signal ◽  
Single Chip ◽  
Display Function ◽  
Stable Performance ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

This temperature measurement system is based on the control of AT89S52 single chip microcontroller, with temperature display function. Temperature information is changed into digital signal directly by a single bus digital temperature sensor DS18B20, and the digital signal is sent into microcontroller for real-time acquisition. The results are displayed through LCD module 1602 in real time. The system is with the characteristics of low cost, high precision, stable performance and convenient operation. The system can be extended to multi-point temperature detecting system easily, and adding temperature transfinite alarm function.

Temperature Measurements for Transmission Lines Based on Passive Optical Sensing

2014 ◽  
Vol 543-547 ◽  
pp. 1035-1041 ◽  
Author(s):  
Song Xiang Liu ◽  
Wei Xiao ◽  
Hong Bo Chen ◽  
Huan Bai ◽  
Yun Feng ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Temperature Measurement ◽  
Real Time ◽  
High Voltage ◽  
Measurement System ◽  
Transmission Lines ◽  
Optical Sensing ◽  
Temperature Changes ◽  
Fbg Sensors ◽  
Temperature Measurement System

In order to achieve real-time monitoring of high-voltage lines, a temperature measurement system for transmission lines based on the online passive FBG sensors is proposed. The temperature linearity of the FBG sensors designed by bi-metal package is greater than 0.999, which guarantees great mechanical strength and temperature measurement performance. The sensors are fixed to the lines by a specially designed fixture. This temperature measurement system for transmission lines based on optical sensing is running on 110kV line with strong scalability, which could monitor temperature changes of the conductor in real time.

scholarly journals Research of digital temperature measurement system in vacuum thermal test based on DS18B20

2018 ◽  
Vol 173 ◽  
pp. 03076
Author(s):  
Xi Zhu ◽  
Wangqing An ◽  
Liu Chang ◽  
Li ZhenWei ◽  
Liu Zeyuan
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Remote Monitoring ◽  
Thermal Environment ◽  
Platinum Resistance ◽  
Thermal Test ◽  
The Difference ◽  
The Stability ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

Temperature measurement is a very important measurement project in spacecraft vacuum thermal test, and thermocouple measurement system is generally used for temperature measurement. In order to reduce the number of wire measuring circuit and improving the measurement system of anti disturbance and high measurement accuracy in vacuum thermal test process, which can be used in digital temperature measurement system of vacuum thermal test design, realizes the digital temperature measuring equipment of spacecraft and ground equipment. The system is composed of digital temperature sensor DS18B20 and acquisition device. It can be connected with remote monitoring computer through LAN network to realize remote monitoring of temperature. The hardware structure, communication protocol and software design of the digital temperature measurement system are given in this paper. The vacuum thermal environment test and comparison with the platinum resistance temperature measurement system. The results show that the stability of the system is good and the difference between the measured value and the PT100 measurement is within 0.5 °C, and the linearity is about ±0.1% which satisfies the requirement of vacuum thermal test.

Design of Wireless Temperature Measurement System for High Voltage Electrical Equipment

2012 ◽  
Vol 591-593 ◽  
pp. 1502-1505
Author(s):  
Xiang Hong Cao ◽  
Chao Yang ◽  
Hua Zhang
Keyword(s):  
Temperature Measurement ◽  
High Voltage ◽  
Measurement System ◽  
Power Supply ◽  
System Analysis ◽  
Electrical Equipment ◽  
Temperature Data ◽  
Working Environment ◽  
Reliable Power Supply ◽  
Temperature Measurement System

There are many limits in the traditional temperature measurement methods' for high voltage electrical equipment. A wireless temperature measurement system based on C8051F340 for high voltage electrical equipment has been designed, which transfers temperature data by wireless communication, and optimizes the system's power supply for the high voltage electrical equipment's working environment. The host computer of the system analysis the temperature data from wireless sensor and can prevent the equipment's overheat accidents in effect. According to the experiment board's practical operating, this system measures temperature accurately, transfers data stably, operates with a reliable power supply and can meet the practical requirements.

Colorimetric Temperature Measurement Algorithm Based on Multi-Sensor Data Fusion

2014 ◽  
Vol 530-531 ◽  
pp. 146-150
Author(s):  
Fan Wei Meng ◽  
Qing Tian ◽  
You Liang Yang
Keyword(s):  
Standard Deviation ◽  
Temperature Measurement ◽  
Real Time ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Image Sensor ◽  
Sensor Data ◽  
The Real ◽  
Measurement Algorithm ◽  
Temperature Measurement System

Wavelength and other factors have a deep influence on temperature measurement system based on CCD image sensor. Deviations between measurement values sometimes are large. In order to reduce error, the temperature outputs in different wavelength combinations do have multi-sensor correlation properties in point of colorimetric temperature measurement system view. The colorimetric temperature measurement algorithm based on real-time adaptive weighted is put forward by such performance index that minimum of standard deviation. According to measured value of each sensor, we will find out the corresponding weights in adaptive manner. And discuss the statistical properties of the estimated standard deviation. Estimation unbiasedness is proved. The algorithm has the following advantages .A much smaller amount of calculation, without any a priori knowledge, only relying on the output of each sensor. All of these make temperature estimation be optimal, measurement accuracy and the real-time performance of the system are improved. Theoretical analysis and experimental results show that the colorimetric temperature measurement algorithm based on the real-time adaptive weighted improves obviously when comparing with the traditional means algorithm in measurement accuracy.

Desing of Real-Time Temperature Measurement System Based on Semiconductor Laser Diode

2014 ◽  
Vol 687-691 ◽  
pp. 886-889
Author(s):  
Zhong Shu Yang
Keyword(s):  
Temperature Measurement ◽  
Real Time ◽  
Laser Diode ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Semiconductor Laser Diode ◽  
Large Size ◽  
Controlling System ◽  
Airplane Engine ◽  
Temperature Measurement System

Thermoelectric couple was employed in traditional airplane engine temperature measurement system with the disadvantages of large size,heavy weight,big error and slow response.This paper presents a new kind of real—time temperature measurement system using laser diode InGaAs/I as light source,and using pyroelectric detector LiTa03 as optical receiving unit and using a microprocessor as signal processing center.This instrument consists of three parts:optical emitting and receiving system,signal amplifying and controlling system,and display system。The principle and structure of the system are introduced.Experimental results of airplane engine real—time temperature measurement show that temperature measurement accuracy and response time conform to our requirement in the range of 300°C一800°Cand agree with prediction of theory.All these prove that the design is correct.

The Design of Measurement System Based on Digital Temperature Sensors

2014 ◽  
Vol 1022 ◽  
pp. 139-142 ◽  
Author(s):  
Song Lin Huang ◽  
Jian Zhong Cui
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Digital Signal ◽  
Processing Unit ◽  
Central Processing ◽  
Temperature Detection ◽  
Monitoring Process ◽  
Industrial Monitoring ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

Temperature measurement system is widely used in industrial monitoring, process control, intelligent home appliances and other fields. The traditional temperature detection method is to use the analog sensor, such as thermocouple or thermal resistance. This traditional temperature measurement system includes signal sampling circuit, amplifying circuit and A/D conversion circuit, which finally obtain the temperature digital signal. This kind of complex circuit leads to the weak anti-interference ability, which affects the reliability of the system. In this paper, a new design of digital temperature measurement system using digital temperature sensor AD7417 was presented. The sensor is connected to a central processing unit (CPU) via digital bus and the temperature value is displayed by LED. Practical application shows that the temperature measurement system is stable and reliable with strong anti-interference ability.

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