Distributed optical fiber sensing system suitable for galloping monitoring of power transmission line
A technology of distributed optical fiber and sensing system, which is applied in measuring devices, using wave/particle radiation, and measuring ultrasonic/sonic/infrasonic waves, etc. It can solve problems such as difficult engineering applications, redundant system structure, and potential safety hazards in electrical sensor measurement. Achieve the effect of reducing labor load and strong anti-interference ability
Pending Publication Date: 2017-12-01
中光华研电子科技有限公司
View PDF10 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
These galloping monitoring devices all use discrete electrical sensing elements for measurement, which is difficult in engineering applications. For long-distance transmission cable monitoring, a large number of monitoring units are required to be networked. The system structure is redundant, and the power supply and maintenance of each unit are also problems. At the same time Electrical sensor measurement itself has potential safety hazards
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0034] see figure 1 , a distributed optical fiber sensing system suitable for galloping monitoring of transmission lines, including a distributed optical fiber sensing system, characterized in that:
[0035] Also includes OPPC cable and remote monitoring terminal with embedded MATLAB software;
[0036] The distributed optical fiber sensing system includes a laser, an electro-optical modulator, an isolator, a circulator, a filter, a photodetector, and a data acquisition card;
[0037] The laser 1 is used to emit continuous light;
[0038] The electro-optic modulator 2, whose input end is connected to the output end of the laser 1, is used to receive the continuous light emitted by the laser, and modulate the continuous light into a periodic optical signal as the pump pulse light and output from the signal output end;
[0039] The signal input end of the isolator 3 is connected to the signal output end of the electro-optical modulator, used for receiving the pump pulse light o...
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
Login to View More Abstract
The invention relates to the technical field of distributed optical fiber sensing and particularly provides a distributed optical fiber sensing system suitable for the galloping monitoring of a power transmission line. The system comprises a distributed optical fiber sensing system. The system is characterized by further comprising an OPPC optical cable and a remote monitoring terminal. A laser in the distributed optical fiber sensing system is sequentially connected with an electro-optical modulator and the signal input end of an isolator. The three ports of a circulator are sequentially connected with the signal output end of the isolator, any OPPC optical fiber in the OPPC optical cable and the signal input end of a filter. The signal output end of the filter is sequentially connected with a photoelectric detector and a data acquisition card. The data acquisition card is in communication with the remote monitoring terminal. On the basis of the distributed optical fiber sensing technology, only an OPPC optical fiber needs to be used as a sensing unit for realizing the long-distance continuous and distributed measurement. Meanwhile, no sensing device is needed.
Description
technical field [0001] The invention relates to the technical field of distributed optical fiber sensing, in particular to a distributed optical fiber sensing system suitable for galloping monitoring of transmission lines. Background technique [0002] With the rapid improvement of power grid coverage, more and more transmission lines are currently being constructed in areas with high mountains, sparsely populated areas and poor traffic conditions. These areas have prominent wind damage and low level of line operation and maintenance. When the transmission line dances violently for a long time, it is very likely that a dance accident will occur, causing huge losses to people's normal life and industrial production. [0003] Existing dance monitoring devices include inclination sensors, acceleration sensors, and electromagnetic vibration sensors. These galloping monitoring devices all use discrete electrical sensing elements for measurement, which is difficult to apply in en...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01H9/00
CPCG01H9/004
Inventor 李伟李桂顺赖明聪
Owner 中光华研电子科技有限公司