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Pipeline temperature detection and abnormal temperature data reject method and system

A technology of abnormal temperature and data elimination, applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., can solve the problem that the measurement results cannot correctly reflect the actual state, etc., and the real-time detection method to achieve the overall temperature of the pipeline is simple and easy to implement. , High real-time, reliable detection effect

Inactive Publication Date: 2010-07-14
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

However, most of the previous methods are to take the average value of the temperature measured by all sensors, so that when the data of some sensors is incorrect or subject to some kind of interference, the measurement results cannot correctly reflect the actual state

Method used

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  • Pipeline temperature detection and abnormal temperature data reject method and system
  • Pipeline temperature detection and abnormal temperature data reject method and system
  • Pipeline temperature detection and abnormal temperature data reject method and system

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Embodiment

[0018] Embodiment: A section of fluid pipeline in a factory, according to the attached figure 1 The detection system is arranged in a way to detect the heat transfer process of the fluid in the pipeline in real time. System includes: 12 thermocouples according to attached figure 2 The way of equidistant point-to-point arrangement (two thermocouples are placed up and down or left and right to form a line alignment), the thermocouple is used to measure the temperature signal of the pipeline; the multi-channel inspection controller (that is, A / D conversion module, analog / data conversion module) is connected with thermocouples, and is used in conjunction with thermocouples for patrol detection, data acquisition and communication of multi-channel temperatures; multi-channel inspection controllers communicate with RS232 / RS485 converters through the RS485 bus connection, the RS485 bus is used to realize the connection between the A / D conversion module and the computer, and the RS23...

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Abstract

The invention relates to a pipeline temperature detection and abnormal temperature data reject method and a system. The method comprises the following steps: (1) a thermoelectric couple is used for collecting the internal temperature of a pipeline, the temperature data is transmitted to a computer, Grubbs program programmed inside the computer is used for processing the temperature data so as to judge whether the temperature data has abnormal data, and the abnormal data is rejected; (2) a staggered-form arranging grouping and batching estimation program inside the computer is used for processing the consistent temperature data which is obtained after the error is rejected, the consistent temperature data is divided into two groups according to the installation position of sensors (staggered-form arranging and grouping), the batching estimation method is adopted for the average value of the two groups of data so as to estimate a fusion value which is close to the real value of the integral temperature of the pipeline. The detection method and the system are simple and easy, can flexibly, rapidly, reliably and instantly detect the situation of the integral temperature inside the pipeline, and provide a reliable and practical detection solution to the pipelines of different types. The detection method and the system are mainly used for the real-time monitoring and process and safety control technology of the interior of the pipeline.

Description

technical field [0001] The invention relates to a method and system for real-time detection of the overall temperature inside a pipeline and elimination of abnormal temperature data. Background technique [0002] In recent years, with the development of sensor technology, the types of sensors have been refurbished and their performance has been continuously improved, and the multi-sensor data fusion technology has attracted more and more attention. The research of this technology comes from the military field, and the current data fusion technology has been widely used in many fields such as industrial process monitoring, robotics, weather forecasting, marine surveillance, integrated navigation and biomedical engineering. Multi-sensor data fusion is the comprehensive processing of information and data from multiple or multiple sensors. Compared with the results obtained by only using a single sensor for measurement, the value of the measured parameter can be estimated more a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/06
Inventor 王华张坤徐建新王辉涛
Owner KUNMING UNIV OF SCI & TECH
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