Collision position detection device, wind power generation device and wind power generation system
A technology of collision position and detection device, which is applied in the direction of wind turbine components, wind power generation, measurement devices, etc., can solve the problems of high cost and complex system, and achieve the effect of simple structure
Inactive Publication Date: 2015-01-21
F T INNOVATION
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However, it is necessary to analyze the huge photographic data, the system is complicated and the cost is high
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[0036] One aspect of the present invention provides a collision position detection device, including: a piezoelectric element that generates a voltage from the collision, a signal detection unit that detects a signal generated by the collision to the piezoelectric element, and a signal detected by the signal detection unit a signal processing unit for determining a collision position with respect to a piezoelectric element, said piezoelectric element being an elongated piezoelectric element having an elongated piezoelectric body and a pair of electrical conductors transmitting a signal generated by said piezoelectric body, The signal detection unit detects both a front-end signal generated from the front end of the elongated piezoelectric element and a rear-end signal generated from the rear end of the elongated piezoelectric element, and the processing unit detects two signals based on the front-end signal The signal generation time difference between the signal and the back-e...
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Abstract
The invention is a collision position detection device (50) provided with: a piezoelectric element (51) that generates a voltage by means of a collision; a signal detection means that detects a signal generated by means of the collision on the piezoelectric element (51); and a process means that identifies the collision position on the piezoelectric element from the signal detected by means of the signal detection means. The piezoelectric element (51) is a long piezoelectric element (51) comprising: a long piezoelectric body (51b); conductors (51a, 51c) layered on both sides of the piezoelectric body (51c); and a covering body (51d) covering the outer periphery of said piezoelectric body (51b) and conductors (51a, 51c). Said collision position detection device is capable of identifying the collision position by detecting both of a front end signal generated from the front end of the long piezoelectric element (51) and a rear end signal generated from the rear end of the long piezoelectric element (51). By providing said piezoelectric element (51) on a windmill blade, information about birds that have collided with the blade can be detected.
Description
technical field [0001] The invention relates to a collision position detection device, a wind power generation device and a wind power generation system provided with the collision position detection device. Background technique [0002] In wind power plants, accidents where birds that do not see the rotating blades collide with the blades occur from time to time. Not only damage to wind power generation devices, but also some cases of nature protection birds or migratory birds colliding with the blades of wind power generators and dying. But because the situation that the bird that collides and falls is eaten by nearby animals is more, there is not a kind of means that can accurately grasp the real situation of bird collision. On the other hand, due to the shortage of electric power in recent years, wind power generation installations are being constructed not only on land, but also at sea, and are likely to be installed on the flight paths of migratory birds, which is mor...
Claims
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IPC IPC(8): G01B7/00F03D1/06F03D11/00G01L1/16G01L5/00
CPCG01B7/003Y02E10/722F03D11/00G01L5/0052G01B7/00Y02E10/721F03D1/06G01L1/16F03D80/00F03D17/00Y02E10/72F03D80/10G01D3/00
Inventor 冈野照夫
Owner F T INNOVATION