Health monitoring method of distribution type optical fiber sensing pole and tower
A distributed optical fiber and health monitoring technology, which is applied in the direction of measuring the force of change in optical properties of materials when they are stressed, can solve the problems that detectors cannot detect and cannot fully grasp the three-dimensional force of towers and towers. , to achieve the effect of ensuring safe operation
Inactive Publication Date: 2015-03-25
STATE GRID CORP OF CHINA +1
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[0003] Traditional sensors mainly use optical fiber gratings as detectors, but optical fiber gratings are point-shaped monitoring, which can only monitor the strain at the position of the grating. They are arranged intermittently on the tower, and cannot fully grasp the three-dimensional force of the tower body.
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[0016] A preferred embodiment of a method for monitoring the health of a distributed optical fiber sensing tower according to the present invention will be described in detail below in conjunction with the accompanying drawings.
[0017] figure 1 and figure 2 A specific implementation method of a distributed optical fiber sensing tower health monitoring method of the present invention is shown: the distributed optical fiber sensing tower health monitoring method is characterized in that: the equipment of the distributed optical fiber sensing tower health monitoring method includes a sensor Optical fiber, light source, modulator, fiber coupler, light detector, signal processing module, wireless transmitting module, wireless receiving module, the whole detection steps are:
[0018] Such as figure 1 As shown, the sensing fiber is laid on the tower body. The light source, optical fiber coupler, optical detector, signal processing module, and wireless transmission module are pa...
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The invention discloses a health monitoring method of a distribution type optical fiber sensing pole and tower and relates to the field of optical fiber sensing. Equipment of the health monitoring method of the distribution type optical fiber sensing pole and tower comprises a sensing optical fiber, a light source, a modulator, an optical fiber coupler, an optical detector, a signal processing module, a wireless emitting module and a wireless receiving module. The wireless monitoring system for the stress health situation of the pole and tower can monitor real-time changes of stress of the pole and tower, the health situation of the pole and tower can be analyzed qualitatively according to the data and in combination with an ice mathematical model and a fuzzy logic diagnosis method, whether ice exists or not is analyzed, the ice thickness is calculated quantitatively, the ice development tendency is predicted, the operation safety state of an electric transmission line is analyzed and evaluated, an alarm is given when the index value is exceeded, and the method has great realistic significance to guaranteeing safety operation of a power grid system.
Description
technical field [0001] The invention relates to the field of optical fiber sensing, in particular to a distributed optical fiber sensing tower health monitoring method. Background technique [0002] With the continuous progress of human society, daily life is more and more dependent on electricity. The smooth transmission of electricity is the guarantee of people's normal life. The transmission tower plays a relay role in the line, and the damage of the tower seriously affects the normal operation of the transmission line. There are two main reasons for tower damage: one is due to changes in meteorological conditions, such as icing and strong winds; the other is that the ground deformation caused by mining subsidence mainly includes vertical movement and deformation, horizontal movement and deformation, and ground surface deformation. internal shear strain. These surface deformations will directly affect the foundation, tower, and span of high-voltage transmission line towe...
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IPC IPC(8): G01L1/24
Inventor 施斐杜鹏徐天福金家春刘箐刘国仁
Owner STATE GRID CORP OF CHINA