Remote gas monitoring system and method

A gas monitoring and remote technology, applied in signal transmission systems, measuring devices, instruments, etc., can solve problems such as inaccurate measurement results, high power consumption, long-term continuous work, and difficulty in characterization, achieve solid communication conditions, and solve explosion-proof danger areas , easy to install and maintain

Active Publication Date: 2015-09-30
FOCUSED PHOTONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, gas sensors are mostly subject to cross-interference from other gases (that is, a gas sensor responds to multiple gases), resulting in qualitative difficulties and inaccurate measurement results. In addition, the high power consumption of these devices also prevents them from being used for long-term use in the field. continuously working

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Examples

Experimental program
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Effect test

Embodiment 1

[0041] figure 1 Schematically provides a simplified structural diagram of the remote gas monitoring system of the embodiment of the present invention, as figure 1 As shown, the multi-gas monitoring system includes:

[0042] At least two detection units, each detection unit includes a sensor, a memory, a processor; such as setting 4 detection units to detect HF, HCN, CL 2 , NH 3 and other 4 toxic gas concentrations, the output signal of the processor Transmitted to the processing unit through the first network (wired or wireless), the anti-cross-interference parameter A in the memory ji Transmitted to the processing unit through the second network (wired or wireless), i=1, 2, 3...N, N≥2, N is at least part of the number of gas species in the environment to be measured; preferably, the Anti-cross-interference parameter A ji is the detection sensitivity of any sensor to each gas to be measured in the environment, that is, the cross-interference degree when any sensor is int...

Embodiment 2

[0063] An application example of the remote gas monitoring system and method according to Embodiment 1 of the present invention in the detection of toxic gases in chemical industrial parks. Specific detection of HF, HCN, CL 2 , NH 3 , HCL, COCL 2 , SO 2 The content of 7 kinds of gases, the environment also has O 2 , N 2 , CO 2 Wait for gas.

[0064] In this application example, 7 detection units are used, and each detection unit is composed of a filter, a gas sensor, a processor and a memory. The gas sensors are respectively used to detect HF, HCN, CL 2 , NH 3 , HCL, COCL 2 , SO 2 The role of the filter is to filter the particulate matter in the air to protect the sensor. The gas sensor converts the gas concentration signal into an electrical signal that can be sampled by the ADC, and then the processor receives the digital signal through the ADC to obtain the uncompensated and corrected gas concentration value. Uncorrected gas concentration values ​​deviate from th...

Embodiment 3

[0076] An application example of the remote gas monitoring system and method according to Embodiment 1 of the present invention in the detection of toxic gases in chemical industrial parks. Specific detection of HF, the detection environment also has HCN, CL 2 , NH 3 , HCL, COCL 2 , SO 2 , O 2 , N 2 , CO 2 Wait for gas.

[0077] In this application example, in order to detect the content of HF more accurately, seven detection units need to be set, and each detection unit is composed of a filter, a gas sensor, a processor and a memory. The gas sensors are respectively used to detect HF, HCN, CL in the environment to be tested 2 , NH 3 , HCL, COCL 2 , SO 2 The function of the filter is to filter the particulate matter in the air to protect the sensor, the gas sensor converts the gas concentration signal into an electrical signal that can be sampled by the ADC, and then the processor receives the digital signal through the ADC to obtain the uncompensated and corrected g...

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Abstract

The invention provides a remote gas monitoring system and a method. The gas monitoring system comprises: at least two detection units, and each detection unit consists of a sensor, memory, and a processor; the output signal of the processor is transmitted to a processing unit through a first network, the anti-cross interference parameter Aji in the memory is transmitted to the processing unit through a second network, i=1, 2, 3... N, N is greater than or equal to 2 and is at least part of gas types in a to-be-measured environment. The gas monitoring system also includes: the processing unit, which processes the received output signal anti-cross interference parameter Aji so as to obtain the type and content Kj of the to-be-measured gas and transmit them to an emission unit; and the emission unit, which is used for transmitting the received type and content of the to-be-measured gas to a supervision platform by a third network. The system and method provided in the invention have the advantages of cross interference resistance, accurate detection, good maintenance, low power consumption and the like.

Description

technical field [0001] The invention relates to gas monitoring, in particular to a remote gas monitoring system and method capable of resisting cross-interference. Background technique [0002] During the production and processing of chemical industry parks, sewage treatment plants, waste incineration plants and other enterprises, a large amount of hazardous substances will be discharged in an unorganized manner, among which H 2 S, HCL, COCL 2 (phosgene), CL 2 , NH 3 , HF, SO 2 , NO 2 etc. are among the most common and harmful gases. These gases are discharged into the atmosphere, which not only destroys the atmospheric environment, but also seriously threatens human health. Establish an automatic monitoring network of hazardous substances around these factories and enterprises to monitor and warn the discharge and diffusion of hazardous substances, which can effectively protect the environment and the health of residents. [0003] In the automatic monitoring network ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G08C17/02
Inventor 张涛赵骏邓新欣陈训龙沈旭穆文潮
Owner FOCUSED PHOTONICS
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