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Urban underground gas pipeline monitoring system

A gas pipeline and monitoring system technology, applied in pipeline systems, transmission systems, electrical components, etc., can solve the problems of urban underground gas pipeline leakage, safety and reliability difficulties, and reduce power consumption and overhead, and reduce safety accidents. efficiency, ease of maintenance and emergency handling

Inactive Publication Date: 2019-09-13
ANHUI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a networked monitoring system for urban underground gas pipeline leakage, which can solve the problems of safety and reliability in traditional urban underground gas pipeline monitoring

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings, and this description is only used to explain the present invention.

[0016] like figure 1 As shown, the present invention utilizes the sensor to collect the surrounding environment information of the urban underground gas pipeline and transmits it to the STM32 processor, converts the analog signal quantity into a digital signal quantity through the A / D conversion of the STM32 controller, performs digital signal processing, and compares it with the set Thresholds are compared to determine whether there is a gas leak, and then the improved cross-correlation analysis method is used to locate the source of the leak. STM32 uses the USART serial port to control LoRa to transmit the leak source information to the ground concentrator, and the concentrator uses the USART serial port to control NB-IoT to transmit the leak source The information is transmitted to the base station,...

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Abstract

The invention provides an urban underground gas pipeline monitoring system. The urban underground gas pipeline monitoring system comprises a monitoring terminal, a wireless transmission module and real-time communication monitoring equipment. Gas concentration and negative pressure wave signal data are collected through sensors; data fusion is conducted through a STM32C8T6 processor; leakage sources are located by adopting an improvement cross-correlation analysis method; processed data are transmitted to a ground concentrator module through a LoRa wireless module; and data detected by different detection nodes are fused by a concentrator, and then the data are transmitted to a OneNET cloud platform and terminal equipment for display through a narrow band Internet of things (NB-IoT) wireless communication module. When gas leakage occurs, the working staff in a monitoring center are notified in time to deal with the situation through alarm display and sending of alarm text messages. According to design principles, outstanding anti-interference and signal penetrating capacities of the LoRa wireless module are utilized under the ground to conduct communication so that stability of signals can be guaranteed; on the ground, through the NB-IoT module, uploading of data and intercommunication between users are achieved; and by means of the platform of Internet of things, updating, adjustment and pre-overhaul of products are convenient.

Description

technical field [0001] The invention belongs to the field of intelligent electrical equipment monitoring, and in particular relates to an urban underground gas pipeline monitoring system device. Background technique [0002] The commonly used field bus technologies in urban underground gas pipeline leakage detection include CAN bus, LonWorks bus, etc. After the sensors and lines of the bus communication system are fixed, it will no longer be easy to change and the cost will be high, the construction will be complicated, and the maintenance will be difficult; The anti-interference ability of the long-distance wired communication line is poor, which reduces the stability and reliability of the entire system, and the bus communication mode is easy to be damaged intentionally or unintentionally, thereby reducing the security of the system. With the rapid development of computer, Internet of Things, embedded, wireless communication and other technologies, the leakage detection te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/00F17D5/06H04L29/08
CPCF17D5/005F17D5/06H04L67/12
Inventor 张梅胡雪雪许桃
Owner ANHUI UNIV OF SCI & TECH
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