Remote Sensing Interpretation and early Warning System Designing of Geohazards along Transmission Lines - A Case Study of the Danba - Kangding 500 kV Double Circuit Transmission Line

2014 ◽  
Vol 986-987 ◽  
pp. 1647-1650
Author(s):  
Yong Xing Cao ◽  
Ming Chang ◽  
Chuan Tang ◽  
Wei Le Li ◽  
Guo Chao Ma
Keyword(s):  
Remote Sensing ◽  
Transmission Line ◽  
Transmission Lines ◽  
Comprehensive Evaluation ◽  
Warning System ◽  
Field Investigation ◽  
Route Selection ◽  
Gis Technology ◽  
Investigation Area ◽  
Sensing Technology

The landslide and debris flow investigation area for Danba ~ Kangding 500 kv double-circuit transmission line route selection is within Ganzi in Tibetan autonomous prefecture, with the area of about 440 km2. The topography, geomorphology, geologic structure, stratum lithology, natural factors, social and economic conditions have great influences on the transmission lines route selection and its construction. For comprehensive evaluation engineering rationality and construction convenience, remote sensing technology (RS) and geographic information system (GIS) technology are taken to implement geological environment survey. With field investigation, remote sensing images interpretation method is used to determine basic characteristics of the geo-hazards.

scholarly journals Monitoring and Early Warning of Transmission Line External Breakage Based on Satellite-Ground Coordination

2021 ◽  
Vol 2078 (1) ◽  
pp. 012071
Author(s):  
Zhi Yang ◽  
Yuanjing Deng ◽  
Mengxuan Li ◽  
Yi Liu ◽  
Binbin Zhao ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Transmission Line ◽  
Transmission Lines ◽  
Early Warning ◽  
Satellite Remote Sensing ◽  
Construction Work ◽  
Remote Sensing Images ◽  
Registration Method ◽  
Monitoring And Early Warning ◽  
External Damage

Abstract This article first proposes a high-precision spatio-temporal registration method between satellite remote sensing images and ground sensors. Then, using satellite remote sensing images, an intelligent identification model for typical external damage hidden dangers of transmission lines based on satellite remote sensing is established to realize intelligent identification of transmission line construction work areas and mining affected areas. Aiming at the results of intelligent identification of construction work areas and mining-affected areas, the proposed YOLOv4-based external damage identification algorithm for transmission lines is used to detect external damage hidden dangers. Through the method in this paper, it is possible to realize a regular general survey of hidden dangers of external damage (construction work area, mining affected area) with full coverage of transmission channels, and carry out targeted 24-hour monitoring on the ground. The test results show that the satellite-ground coordinated transmission line external damage monitoring and early warning in this paper. The method timely and accurately realizes the monitoring and early warning of the external breakage of the transmission line.

Research and Application of Optical Fiber Sensing Technology on High Voltage Transmission Line Monitoring

2013 ◽  
Vol 462-463 ◽  
pp. 59-63 ◽  
Author(s):  
Hong Lei Yang ◽  
Shi Bin Liang ◽  
Xue Peng Miao ◽  
Min Cao ◽  
Ming Chang
Keyword(s):  
Optical Fiber ◽  
Transmission Line ◽  
High Voltage ◽  
Transmission Lines ◽  
Fiber Sensing ◽  
Sensing Technology ◽  
Optical Fiber Sensing ◽  
On Line ◽  
High Voltage Transmission ◽  
Transmission Line Monitoring

On-line monitoring of high voltage transmission lines can prevent or reduce the accidents of transmission reduced by icing,wave,breeze vibrations of electric wires and the dropping of electrical insulators.An on-line monitoring system of high voltage transmission lines based on optical fiber sensing technology is setted in this paper.Fiber optic signal demodulation instrument in the transformer substation receives the signal sent by the optical fiber Bragg grating sensors fitted on transmission lines and electric power towers,and then the signal was sent to the transmission line monitoring center by the power system network.Field hang net experiments shows that the system can monitor the high voltage transmission lines accurately for a long time.

Valuate of Soil Conservation of Grassland Ecosystem with GIS and Remote Sensing Technology

2011 ◽  
Vol 365 ◽  
pp. 115-118 ◽  
Author(s):  
Rui Jie Wang ◽  
Lian Wei Yang
Keyword(s):  
Remote Sensing ◽  
Soil Conservation ◽  
Economic Value ◽  
Grassland Ecosystem ◽  
Meadow Steppe ◽  
Gis Technology ◽  
Gis And Remote Sensing ◽  
Remote Sensing Technology ◽  
Sensing Technology ◽  
Grassland Types

In this study, we use d remote sensing and GIS technology to estimate the value of soil conservation. The Revised Universal Soil Loss Equation (RUSLE) was used to estimate soil erosion quantity. The total amount of soil conservation of grassland ecosystem was 79.25×105t/a in HulunBuir in 2006, the total value was 81.58×107yuan/a, in which the economic value of soil fertility conservation, reducing abandoned farmland and reducing silt accumulation were 80.39×107yuan/a, 0.694×107yuan/a and 0.50×107yuan/a respectively. For the different grassland types, lowland meadow was maximum, next was temperate meadow-steppe. Marsh was the minimum.

scholarly journals Extracting and overlaping geospatial informations from remote sensing to mapping genegal drought of Ninh Thuan province

2020 ◽  
Vol 61 (4) ◽  
pp. 11-24
Author(s):  
Thao Phuong Thi Do ◽  
Chinh Mai Thi Duong ◽  
Tai Anh Le ◽  
Vinh Tuyet Thi Tran ◽  
Ha Thu Thi Nguyen ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Warning System ◽  
Remote Sensing And Gis ◽  
Landsat 8 ◽  
Natural Phenomena ◽  
Gis Technology ◽  
Analytic Hierarchy ◽  
South Central ◽  
Hierarchy Process ◽  
Very High

Drought is one of the natural phenomena that seriously affects to society in general as well as the lives of people in particular. Therefore, determining early drought is necessary. Remote sensing and GIS technology with extracting and overlaping tools which can assess the extent of drought from geospatial informations in a wide area. Experimental area is Ninh Thuan province, where drought often occur. Five indexes (TCI, VCI, SAVI, WWSVI, TVDI) are extracted from Landsat 8. The weights according to the level of influence is determine by Analytic Hierarchy Process (AHP). Results shows current drought in five levels: no drought; low; medium; high and very high, then compared with the drought warning system in the South-central region. The areas of Ninh Phuoc, Ninh Son and Phan Rang are higher drought phenomena at the time of dry season (accounting for about 60% of the total provincial area).

scholarly journals Transmission line condition assessment technology based on multi-source Parameter Fusion

2021 ◽  
Vol 2108 (1) ◽  
pp. 012018
Author(s):  
Wentao Dai ◽  
Minzhen Wang ◽  
Jiankai Guo ◽  
Zheng Li ◽  
Dongliang Qiao ◽  
...  
Keyword(s):  
Transmission Line ◽  
Transmission Lines ◽  
Short Term Memory ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Source Parameter ◽  
Operation And Maintenance ◽  
State Evaluation ◽  
Memory Network ◽  
Distribution State

Abstract Aiming at the shortcomings of current transmission line state evaluation, which refers to the isolation of scalars and the low accuracy of evaluation methods, a transmission line state evaluation technology based on multi-source parameter fusion is proposed. This paper collects and selects characteristic data such as line test inspection information, operation and maintenance records, and power grid operating parameters as indicator quantities. The membership function is used to express the distribution state of the index quantity, and the distribution state is used as the data to establish a comprehensive evaluation model of the line operation state based on the long- and short-term memory network. The data tag is used to train the deep network to establish the mapping relationship between index parameters and operation state. Experiments show that the evaluation accuracy of the proposed method is significantly higher than that of the traditional shallow method, which can provide theoretical guidance for the operation and maintenance of overhead transmission lines.

scholarly journals Research on Optical Fiber Sensor for Environmental Temperature and Humidity of Transmission Line

2021 ◽  
Vol 252 ◽  
pp. 02014
Author(s):  
Jie Zhang ◽  
Yan Xie ◽  
Zehua Zhang ◽  
Le Lv ◽  
Zhencheng Tan
Keyword(s):  
Optical Fiber ◽  
Transmission Line ◽  
Transmission Lines ◽  
Humidity Sensor ◽  
Optical Fiber Sensor ◽  
Test Results ◽  
Fiber Sensing ◽  
Sensing Technology ◽  
Temperature And Humidity ◽  
Optical Fiber Sensing

The operation environment of the transmission line directly affects the operation safety of the transmission line. This article studied a FBG temperature and humidity sensor based on optical fiber sensing technology for transmission lines. Firstly, this paper studies the packaging method of the sensor, then designs the corresponding installation fixture, and gives its installation diagram. Finally, the performance of the FBG is tested in the experimental box and the national optoelectronic information product quality supervision and inspection center, and the test results show that the performance of the FBG temperature and humidity sensor is better.

Remote Sensing Based Analysis of the Mine Geological Environment Evaluation

2011 ◽  
Vol 121-126 ◽  
pp. 2839-2844
Author(s):  
Xue Wei Wu ◽  
Guang Dao Bao ◽  
Wei Wei Jia ◽  
Chang Zhai ◽  
Xing Li
Keyword(s):  
Remote Sensing ◽  
Comprehensive Evaluation ◽  
Data Extraction ◽  
Evaluation Model ◽  
Remote Sensing Data ◽  
Sensing Data ◽  
Remote Sensing Technology ◽  
Sensing Technology ◽  
Comprehensive Evaluation Model ◽  
Mine Development

Mine development can benefit mankind, but also cause ecological damage to the environment; bad influence threatens the lives and safety. Environmental pollution caused by mining is a complex; system changes, no single factor and the instantaneous direction indicators are not given the trend of the entire environmental system. Remote sensing data with regional and cyclical characteristics, using remote sensing technology to monitor the mine environment has a strong advantage, is one of the key people to study. By using time series remote sensing data, extraction mining environment-related indicators, and actual work to establish a complete index system and using AHP to determine weights, combined with comprehensive evaluation model of experimental area to study, and achieved good results.

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