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Combustible gas intelligent sensor

A smart sensor and gas sensor technology, applied in the field of sensors, can solve problems such as difficulty in obtaining multi-angle effective data, signal data is easy to drift and change greatly, and achieve the effect of improving signal measurement accuracy, improving collection accuracy, and accurate monitoring results

Active Publication Date: 2019-03-26
安徽云汉智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For the existing flammable gas sensors, it is difficult to obtain the large-scale characteristic information of the whole data with a long enough time, even if the large-scale information is obtained, it is difficult to obtain multi-angle effective data, and the existing flammable and explosive gas sensors collect and display The defect that the signal data is easy to drift and change greatly, the present invention provides a combustible gas intelligent sensor, through a small number of process-oriented multi-parameter group parameters, instead of a large amount of single sensor raw data, accurate monitoring of combustible gas can be realized

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0031] A combustible gas intelligent sensor includes a sensor module and a microcontroller module, the sensor module is connected to the microcontroller module, and the microcontroller module has a communication interface circuit; the microcontroller module processes data according to the following steps:

[0032] S1. Read the combustible gas concentration signal detected by the combustible gas sensor module;

[0033] S2. Convert the combustible gas concentration signal into a first signal parameter, the first signal parameter includes the first signal value and its generation time; integrate the first signal value with time to obtain the first signal with different time scales Integral parameters;

[0034]S3. Obtaining visual combustible gas concentration signal parameters, including: self-integrating the combustible gas concentration signal value to obtain a combustible gas concentration signal self-integration parameter in a short period of time; the combustible gas concent...

Embodiment 2

[0052] The scheme of embodiment 2 is basically the same as that of embodiment 1, the only difference is that step S31 is set, and the critical explosion lower limit integral parameter is obtained, which is used for early warning and alarm output; including the following sub-steps:

[0053] In S31, according to the lower explosion limit of the combustible gas, the second-level first signal explosion lower limit integration threshold is set. When the visual integration parameters with the same time period length exceed half of the corresponding second-level first signal explosion lower limit integration threshold, an emergency is issued quickly. warning sign.

[0054]In this embodiment, according to the lower limit of combustible gas explosion—the lower limit of the explosive concentration limit, the second-level first signal explosion lower limit integration thresholds of blue, yellow, orange and red four levels are set. When the parameter is higher than 1% of the corresponding...

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Abstract

The invention provides a combustible gas intelligent sensor. The combustible gas intelligent sensor comprises a combustible gas sensor module and a microcontroller module, wherein the microcontrollermodule is used for processing data according to the following steps: reading a combustible gas concentration signal; converting the combustible gas concentration signal into a first signal parameter to obtain a combustible gas concentration signal parameter and obtaining a sudden change time integral parameter; establishing a multi-parameter group parameter comprising the first signal parameter, afirst signal integral parameter, a visual integral parameter and the sudden change time integral parameter; taking the multi-parameter group parameter as a process parameter to carry out whole judgment and feeding back a result. According to the combustible gas intelligent sensor, various characteristics are represented from different angles and in all directions through the plurality of parameters including the visual integral parameter and the sudden change time integral parameter or a combination of the parameters; and the whole judgment is carried out on a monitoring station through the multi-parameter group parameter, so that the acquisition precision of the combustible gas intelligent sensor is greatly improved, the visual display stability is improved and a monitoring result is more accurate.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to an intelligent combustible gas sensor. Background technique [0002] Combustible gas is an important energy substance indispensable to human production and life at the present stage. With people's emphasis on safety, energy saving, and environmental protection issues, safe and clean energy has received more and more attention. Taking alcohol-based fuel as an example, clean alcohol-based fuel can be completely decomposed and burned, and the emission products are mainly water vapor and carbon dioxide. As a substitute for coal-fired, oil-fired, and gas-fired boilers, base fuels are used in certain areas of industry and civil use (heating, bathing, etc.), which is of great significance to the realization of social goals of energy conservation, emission reduction, and carbon emission reduction. Industrially, methanol will contain impurities through pipelines, and these im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0004
Inventor 单立辉曹大强
Owner 安徽云汉智能科技有限公司
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