Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for monitoring operation state of pressure gauge of oil-discharging nitrogen-injecting fire-extinguishing device

A fire extinguishing device, oil discharge and nitrogen injection technology, applied in the field of intelligent identification, can solve problems such as high cost, affect the integrity of nitrogen cylinders, increase the probability of equipment failure, etc., and achieve the effects of avoiding errors, reducing shadows and light changes, and convenient installation

Active Publication Date: 2021-03-12
国网河南省电力公司超高压公司 +1
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, if it is necessary to realize the real-time monitoring function of nitrogen pressure mentioned in the above patent on the existing oil discharge nitrogen injection fire extinguishing device, the existing nitrogen cylinder needs to be disassembled Transformation, the cost of transformation is high, and the integrity of the nitrogen cylinder will be affected after transformation, increasing the probability of equipment failure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for monitoring operation state of pressure gauge of oil-discharging nitrogen-injecting fire-extinguishing device
  • Method and system for monitoring operation state of pressure gauge of oil-discharging nitrogen-injecting fire-extinguishing device
  • Method and system for monitoring operation state of pressure gauge of oil-discharging nitrogen-injecting fire-extinguishing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The purpose of Embodiment 1 is to provide a method for monitoring the operating state of the pressure gauge of the oil discharge and nitrogen injection fire extinguishing device.

[0044] This embodiment mainly utilizes Python and cv2 storehouse (OpenCV) to finish the processing to picture, because OpenCV supports various interfaces such as C++, C, C#, Python, Java, Ruby, therefore also can adopt other programming languages ​​to realize.

[0045] The present embodiment adopts the coordinate system in OpenCV, the zero coordinate is the upper left corner of the image, the X axis is the upper edge of the image, and the direction is from left to right, and the Y axis is the left line of the image, and the direction is from top to bottom.

[0046] like figure 2 As shown, the monitoring method provided in this embodiment includes:

[0047] 1. Step S11, acquiring the image of the pressure gauge.

[0048] The front-end camera will acquire the image of the pressure gauge of t...

Embodiment 2

[0107] The purpose of this embodiment 2 is to provide a pressure gauge operating state monitoring system for an oil discharge and nitrogen injection fire extinguishing device. The monitoring system is used to implement the monitoring method. In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0108] like Figure 7 As shown, the state monitoring system includes an acquisition module, a transmission module, a processing module, a storage module and an interaction module.

[0109] The acquisition module includes a camera, which is installed in the equipment box of the oil discharge and nitrogen injection fire extinguishing device, aimed at the pressure gauge of the oil discharge and nitrogen injection fire extinguishing device, and used to obtain real-time images of the pressure gauge. Because the space in the equipment box is small, the camera can be a pinhole camera, and a supplementary light is installed next to the pressure...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method and system for monitoring the operation state of a pressure gauge of an oil-discharging nitrogen-injecting fire extinguishing device, and belongs to the technical fieldof intelligent identification. The monitoring method comprises the following steps: acquiring a pressure gauge image, preprocessing the acquired image, identifying a real circle center of a dial fromthe preprocessed image, correcting the preprocessed image by using the real circle center of the dial, identifying a pointer position from the corrected image, and calculating a pointer angle according to the pointer position; and calculating a pressure value according to the pointer angle. The monitoring system comprises an acquisition module, a transmission module, a processing module, a storage module and an interaction module. According to the monitoring method, the pressure value can be accurately recognized, the monitoring system can automatically monitor the pressure value, and when the pressure value is lower than or higher than a preset value, alarm information can be sent to a worker in time; according to the invention, the workload of operation and maintenance personnel can bereduced, and refined operation and maintenance are realized while the monitoring effect is ensured.

Description

technical field [0001] The invention belongs to the technical field of intelligent identification, and in particular relates to a method and a monitoring system for monitoring the operating state of a pressure gauge of an oil discharge and nitrogen injection fire extinguishing device. Background technique [0002] At present, most of the transformers in operation in the power system are oil-immersed transformers. The "Code for Fire Protection Design of Thermal Power Plants and Substations" (GB 50229-2019) stipulates: "For oil-immersed transformers with a single capacity of 125MV A and above, 200Mvar The oil-immersed reactors above and above should be equipped with water spray fire extinguishing system or other fixed fire extinguishing devices". [0003] When an oil-immersed transformer encounters an insulation fault, it is very easy to generate arc discharge and local high temperature, which promotes the decomposition of transformer oil and produces a large amount of gas, re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/52G06K9/20
CPCG06V20/52G06V10/95G06V10/141G06V10/243G06V10/42G06V2201/02
Inventor 阎显伟王会琳李静尚西华甘红庆白杨刘彬李伟马啸王波寒宋丹于海刘锦蕙董梁魏来秦刚
Owner 国网河南省电力公司超高压公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com