Urban gas pipeline wireless monitoring system and monitoring method based on TDLAS (tunable diode laser absorption spectroscopy) sensors

A gas pipeline and monitoring system technology, applied in signal transmission systems, instruments, etc., can solve problems such as difficult to find gas leakage in time, achieve the effect of preventing gas leakage and ensuring life safety

Inactive Publication Date: 2016-03-09
WUHAN NEWFIBER OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since most urban gas pipelines are buried pipelines, it is difficult to detect gas leakage in time, leaving hidden dangers of disasters and accidents
At present, there is no tec...

Method used

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  • Urban gas pipeline wireless monitoring system and monitoring method based on TDLAS (tunable diode laser absorption spectroscopy) sensors
  • Urban gas pipeline wireless monitoring system and monitoring method based on TDLAS (tunable diode laser absorption spectroscopy) sensors
  • Urban gas pipeline wireless monitoring system and monitoring method based on TDLAS (tunable diode laser absorption spectroscopy) sensors

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Experimental program
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Embodiment 1

[0026] Embodiment 1. A wireless monitoring system for urban gas pipelines based on TDLAS sensors. The following combination Figure 1-Figure 3 Describe in detail the monitoring system provided by this implementation.

[0027] see figure 1 The monitoring system provided in this embodiment includes multiple detection devices, an alarm module, a power supply module and a background monitoring center, and the multiple detection devices are installed in the gas pipeline at intervals. Wherein, each described detection device comprises temperature sensor, TDLAS sensor, control module and wireless communication module; Tunable semiconductor laser absorption spectrum) sensor, used to collect the gas concentration value at the current detection node in the gas pipeline, and transmit it to the control module; the control module is used to receive the temperature value and gas concentration at the current detection node of the gas pipeline value, and judge whether the gas concentration...

Embodiment 2

[0033] Embodiment 2. A monitoring method using a TDLAS sensor-based urban gas pipeline wireless monitoring system. The following combination Figure 4 and Figure 5 The monitoring method provided in this embodiment is described in detail.

[0034] see Figure 4 , the monitoring method provided in this embodiment includes:

[0035] S1. Transmitting the collected temperature value and gas concentration value at the current detection node of the gas pipeline to the control module.

[0036] Specifically, the temperature value at the current detection node is collected by using the temperature sensor installed at intervals in the gas pipeline, and the gas concentration value at the current detection node is collected by the TDLAS sensor installed at the detection node, and the detected current detection node is respectively The temperature value and gas concentration value at the point are sent to the control module.

[0037] S2. The control module receives the temperature val...

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Abstract

The invention discloses an urban gas pipeline wireless monitoring system and monitoring method based on TDLAS (tunable diode laser absorption spectroscopy) sensors. The monitoring system comprises multiple detection devices, an alarming module, a power supply module and a background monitoring center, wherein the multiple detection devices are installed in a gas pipeline at intervals; each detection device comprises a temperature sensor, a TDLAS sensor, a control module and a wireless communication module; the temperature sensor transmits the collected temperature value of the current detection node in the gas pipeline to the control module, and the TDLAS sensor transmits the collected gas concentration value to the control module; and the control module judges whether the concentration value of gas is in a safe range or not, if not, the control module controls the alarming module to give an alarm, and the collected data and judgment results are uploaded to the background monitoring center through the wireless communication module. Through the invention, urban gas pipeline systems can be monitored and managed in time, so that gas leakage is prevented and life safety is guaranteed.

Description

technical field [0001] The invention relates to the field of gas pipeline operation safety, in particular to a TDLAS sensor-based wireless monitoring system and monitoring method for urban gas pipelines. Background technique [0002] At present, the detection of gas leakage at home and abroad is mainly based on electrochemical or catalytic combustion point-type instruments. Their use has a history of more than several decades. The technical advantages are more prominent, and the urban gas pipeline wireless monitoring system based on TDLAS will provide a higher security guarantee for the safety of the gas pipeline. [0003] The cost of manual inspection is very high, and the inspection cycle is very long. It takes more than one week to inspect all the pipeline wells once, which means that the inspection cycle is at least one week. If discovered in time, hidden dangers can easily develop into explosion accidents, resulting in loss of life and property. Although gas companies...

Claims

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Application Information

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IPC IPC(8): G08C17/02
Inventor 李亮亮胡学秋武治国张春萍周久
Owner WUHAN NEWFIBER OPTOELECTRONICS TECH
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