阅读说明：本技术 一种海上风力发电机叶片健康状态监测设备及方法 (Health state monitoring equipment and method for offshore wind turbine blade ) 是由 王文杰 薛宇 于 2021-07-20 设计创作，主要内容包括：本发明涉及一种海上风力发电机叶片健康状态监测设备,包括主机、主机轨道、副机及副机轨道；主机轨道为竖直轨道,安装于风机机头的下部,与风机塔柱贴合固定连接；主机与主机轨道滑动连接,可沿竖直方向在主机轨道移动；主机安装有4K变焦伸缩镜头、麦克风及距离红外感应器；副机轨道为环形轨道,安装于主机轨道下方,环绕风机塔柱贴合固定连接；副机与副机轨道滑动连接,可沿风机塔柱环向在副机轨道移动；副机安装有副机4K高清变焦伸缩镜头、副机麦克风、副机距离红外感应器。本发明能够实现风力发电机随时对风力发电机叶片进行例行检查,保证风机正常运行,提前发现叶片的问题及时处理,避免大的灾害性问题出现,造成风机长时间停机,带来损失。(The invention relates to health state monitoring equipment for an offshore wind turbine blade, which comprises a host, a host rail, an auxiliary machine and an auxiliary machine rail, wherein the host rail is arranged on the auxiliary machine; the main machine rail is a vertical rail, is arranged at the lower part of the fan head and is fixedly connected with the fan tower column in an attaching way; the main machine is connected with the main machine track in a sliding way and can move on the main machine track along the vertical direction; the host is provided with a 4K zoom telescopic lens, a microphone and a distance infrared sensor; the auxiliary engine track is an annular track, is arranged below the main engine track and is fixedly connected around the tower column of the fan in an attaching manner; the auxiliary engine is connected with the auxiliary engine rail in a sliding manner and can move on the auxiliary engine rail along the circumferential direction of the tower column of the fan; the auxiliary machine is provided with an auxiliary machine 4K high-definition zooming telescopic lens, an auxiliary machine microphone and an auxiliary machine distance infrared sensor. The invention can realize routine inspection of the wind driven generator blades by the wind driven generator at any time, ensure normal operation of the fan, find the problem of the blades in advance and process the problem in time, and avoid the occurrence of large disastrous problems, which cause long-time shutdown of the fan and loss.)

1. A health state monitoring device for an offshore wind turbine blade is characterized by comprising a main machine, a main machine rail, an auxiliary machine and an auxiliary machine rail;

the main machine rail is a vertical rail, is arranged at the lower part of the fan head and is fixedly connected with the fan tower column in an attaching manner; the main machine is connected with the main machine rail in a sliding mode and can move on the main machine rail along the vertical direction; the host is provided with a 4K zooming telescopic lens, a microphone and a distance infrared sensor and is used for monitoring the health state of the fan blade through the 4K zooming telescopic lens, the microphone and the distance infrared sensor;

the auxiliary engine rail is an annular rail, is arranged below the main engine rail and is fixedly connected with the main engine rail in an attaching mode around the tower column of the fan; the auxiliary engine is connected with the auxiliary engine rail in a sliding mode and can move on the auxiliary engine rail along the circumferential direction of the tower column of the fan; the auxiliary machine is provided with an auxiliary machine 4K high-definition zooming telescopic lens, an auxiliary machine microphone and an auxiliary machine distance infrared sensor and is used for monitoring the health state of the fan blade through the auxiliary machine 4K high-definition zooming telescopic lens, the auxiliary machine microphone and the auxiliary machine distance infrared sensor.

2. The offshore wind turbine blade health status monitoring device of claim 1, wherein a main engine charging protection bin is mounted on the top of the main engine rail, and the main engine charging protection bin is connected with an energy storage power supply inside a wind turbine cabin through a lead for charging and supplying power to the main engine; the host computer protection storehouse that charges is equipped with host computer charging voltage stabilizer and safety cover, the contact ball that charges, charging plug, the host computer is equipped with the host computer slot that charges.

3. The offshore wind turbine blade health status monitoring device of claim 2, wherein a secondary machine charging protection bin is arranged at the connection of the secondary machine rail and the main machine rail, and the secondary machine charging protection bin is connected with an energy storage power supply inside a wind turbine cabin through a lead and used for charging and supplying power to the secondary machine; the auxiliary charging protection bin is provided with an auxiliary charging contact sliding groove, and the auxiliary is provided with an auxiliary charging contact plug.

4. The offshore wind turbine blade health monitoring device of claim 3, wherein the primary and secondary machines are each provided with solar panels.

5. The offshore wind turbine blade health status monitoring device of claim 1, wherein the main machine rail comprises a rail inner side driving toothed belt, the rail inner side driving toothed belt comprises a left side toothed belt and a right side toothed belt, a left side driving gear and a right side driving gear which are respectively matched with the left side toothed belt and the right side toothed belt are arranged on the upper portion of the main machine back, and the left side driving gear and the right side driving gear are driven by a driving motor;

the back of the main machine is also provided with a gravity balance sliding gear which is matched with the main machine track and used for balancing the weight of the main machine, and the gravity balance sliding gear comprises a left side balance sliding gear and a right side balance sliding gear;

the back of the main machine is also provided with a pre-tightening pulley, the main machine track is provided with a track outer side sliding groove, and the pre-tightening pulley is in sliding connection with the track outer side sliding groove.

6. The offshore wind turbine blade health status monitoring device of claim 1, wherein the auxiliary rail is of an open lower end structure, the upper outer end of the auxiliary rail is of a rounded corner structure, the auxiliary rail comprises an auxiliary rail inner driving rack, the auxiliary rail inner driving rack comprises a left rack and a right rack, a driving gear is arranged on the back of the auxiliary, and the driving gear comprises an auxiliary left driving gear and an auxiliary right driving gear which are respectively matched with the left rack and the right rack;

the upper end of the back of the auxiliary engine is provided with a rail inner side pulley, the auxiliary engine rail is provided with a sliding groove, and the rail inner side pulley is connected with the sliding groove in a sliding mode.

7. The offshore wind turbine blade health monitoring device of claim 6, wherein the secondary machine is backed with a secondary machine gravity balance weight for providing dynamic balance when the main machine rotates.

8. The offshore wind turbine blade health status monitoring device of claim 1, wherein the main machine rail is attached to the wind turbine tower by an adhesive along the wind turbine tower downward, the auxiliary machine rail is attached to the wind turbine tower by a rotating attachment of an attachment agent, and the auxiliary machine rail interface is seamlessly connected to the auxiliary machine charging and protection bin internal interface by a bolt.

9. The offshore wind turbine blade health monitoring device of claim 1, wherein the host charging regulator and the protective cover are fixedly connected to the top of the wind turbine tower through fixing bolt holes.

10. An offshore wind turbine blade health monitoring method applying the apparatus of any one of claims 1 to 9, comprising:

when the onshore and offshore wind turbines run for a period of time and need to be operated and maintained, the head and the blades are rotated to the direction of the host and the host track through the electric barring gear of the wind turbines, the host inspects the health state of the blades of the wind turbines from top to bottom along the host track, the 4K zooming telescopic lens, the microphone and the distance infrared sensor inspect the health state of the blades of the wind turbines, the blades are changed into the propeller during inspection, the periphery of the whole blade is inspected in detail, and warning information is sent out if cracks, lightning damage, pollution and icing problems are found;

the auxiliary machine is rotated along the direction of a fan head and blades in real time through an auxiliary machine distance infrared sensor and a following sensing device, the clearance distance of the blades is monitored in real time, and early warning information is sent out if a tower hitting dangerous situation occurs, and braking is carried out in an emergency;

collecting sound through an auxiliary microphone, analyzing through real-time big data of a data center, monitoring the health state of the blade in real time, and sending early warning information if a problem occurs;

the blades are subjected to close-range picture and video detection through the 4K variable-focus telescopic lens of the main machine and the auxiliary machine, and the health state of the blades of the wind driven generator is remotely and stereoscopically monitored from static state to dynamic state at any time.

Technical Field

The invention relates to the technical field of wind power generation, in particular to equipment and a method for monitoring the health state of an offshore wind turbine blade.

Background

At present, health monitoring of fan blades mainly depends on manual inspection or unmanned aerial vehicle inspection. The manual inspection needs to be transferred to the blade position with fortune dimension personnel and is examined the blade downwards, can't guarantee fortune dimension personnel's life safety to the inspection needs to shut down the inspection certain degree and causes the power generation loss, can only separate a period inspection moreover, can not real-time dynamic problem of discovery blade in the time of urgency.

The unmanned aerial vehicle is used for checking, and the defect that the stability control of the unmanned aerial vehicle is relatively difficult, especially the unmanned aerial vehicle is difficult to control at offshore and far sea, the unmanned aerial vehicle deviates as long as wind exists, and the wind speed is slightly too high to control the flight so as to be incapable of completing the health state of the blade. If at sea, when no wind is available at sea, the wind power at sea is large, and the sea is far away, the unmanned aerial vehicle can not be remotely controlled, and even if operation and maintenance personnel go out of the sea, sometimes the sea condition is not good, even the unmanned aerial vehicle can not go out of the sea for a long time, so that the health examination of the blades of the offshore wind turbine can not be carried out on time. The problem that the blade cannot be found in advance is timely treated, so that a large disastrous problem occurs, the fan is stopped for a long time, and great economic loss is brought.

In addition, the SCADA data is inferred through experience, so that the method has great blindness and low accuracy.

Disclosure of Invention

The invention aims to provide equipment and a method for monitoring the health state of blades of an offshore wind driven generator, which are used for realizing that the wind driven generator routinely checks the blades of the wind driven generator at any time so as to ensure the normal operation of a fan, timely treat the problem of finding the blades in advance and avoid the occurrence of large disastrous problems, so that the fan is stopped for a long time and loss is caused.

The invention provides health state monitoring equipment for blades of an offshore wind turbine, which comprises a host, a host rail, an auxiliary machine and an auxiliary machine rail, wherein the host rail is connected with the auxiliary machine rail;

the main machine rail is a vertical rail, is arranged at the lower part of the fan head and is fixedly connected with the fan tower column in an attaching manner; the main machine is connected with the main machine rail in a sliding mode and can move on the main machine rail along the vertical direction; the host is provided with a 4K zooming telescopic lens, a microphone and a distance infrared sensor and is used for monitoring the health state of the fan blade through the 4K zooming telescopic lens, the microphone and the distance infrared sensor;

the auxiliary engine rail is an annular rail, is arranged below the main engine rail and is fixedly connected with the main engine rail in an attaching mode around the tower column of the fan; the auxiliary engine is connected with the auxiliary engine rail in a sliding mode and can move on the auxiliary engine rail along the circumferential direction of the tower column of the fan; the auxiliary machine is provided with an auxiliary machine 4K high-definition zooming telescopic lens, an auxiliary machine microphone and an auxiliary machine distance infrared sensor and is used for monitoring the health state of the fan blade through the auxiliary machine 4K high-definition zooming telescopic lens, the auxiliary machine microphone and the auxiliary machine distance infrared sensor.

Furthermore, a host charging protection bin is mounted at the top of the host track, and is connected with an energy storage power supply inside a cabin of the wind driven generator through a lead and used for charging and supplying power to the host; the host computer protection storehouse that charges is equipped with host computer charging voltage stabilizer and safety cover, the contact ball that charges, charging plug, the host computer is equipped with the host computer slot that charges.

Furthermore, an auxiliary engine charging protection bin is arranged at the joint of the auxiliary engine rail and the main engine rail, and is connected with an internal energy storage power supply of a cabin of the wind driven generator through a lead and used for charging and supplying power to the auxiliary engine; the auxiliary charging protection bin is provided with an auxiliary charging contact sliding groove, and the auxiliary is provided with an auxiliary charging contact plug.

Furthermore, the main engine and the auxiliary engine are both provided with solar panels.

Furthermore, the main machine track comprises a track inner side driving toothed belt, the track inner side driving toothed belt comprises a left toothed belt and a right toothed belt, a left driving gear and a right driving gear which are respectively matched with the left toothed belt and the right toothed belt are arranged on the upper portion of the back of the main machine, and the left driving gear and the right driving gear are driven by a driving motor;

the back of the main machine is also provided with a gravity balance sliding gear which is matched with the main machine track and used for balancing the weight of the main machine, and the gravity balance sliding gear comprises a left side balance sliding gear and a right side balance sliding gear;

the back of the main machine is also provided with a pre-tightening pulley, the main machine track is provided with a track outer side sliding groove, and the pre-tightening pulley is in sliding connection with the track outer side sliding groove.

Furthermore, the auxiliary engine rail is of an opening structure at the lower end, the upper end of the outer part of the auxiliary engine rail is of a round angle structure, the auxiliary engine rail comprises an auxiliary engine rail inner side driving rack, the auxiliary engine rail inner side driving rack comprises a left side rack and a right side rack, the back of the auxiliary engine is provided with a driving gear, and the driving gear comprises an auxiliary engine left side driving gear and an auxiliary engine right side driving gear which are respectively matched with the left side rack and the right side rack;

the upper end of the back of the auxiliary engine is provided with a rail inner side pulley, the auxiliary engine rail is provided with a sliding groove, and the rail inner side pulley is connected with the sliding groove in a sliding mode.

Further, an auxiliary machine gravity balance block used for providing dynamic balance when the main machine rotates is arranged on the back of the auxiliary machine.

Furthermore, the main machine track is attached to and connected with the fan tower column downwards along the fan tower column through an adhesive, the auxiliary machine track is attached to and connected with the fan tower column through an attaching agent in a rotating mode, and an interface of the auxiliary machine track is connected with an interface inside the auxiliary machine charging and protecting bin through bolts in a seamless mode.

Further, host computer charging voltage stabilizer and safety cover pass through fixing bolt hole and fan column top fixed connection.

The invention also provides a method for monitoring the health state of the blade of the offshore wind driven generator by applying the equipment, which comprises the following steps:

when the onshore and offshore wind turbines run for a period of time and need to be operated and maintained, the head and the blades are rotated to the direction of the host and the host track through the electric barring gear of the wind turbines, the host inspects the health state of the blades of the wind turbines from top to bottom along the host track, the 4K zooming telescopic lens, the microphone and the distance infrared sensor inspect the health state of the blades of the wind turbines, the blades are changed into the propeller during inspection, the periphery of the whole blade is inspected in detail, and warning information is sent out if cracks, lightning damage, pollution and icing problems are found;

the auxiliary machine is rotated along the direction of a fan head and blades in real time through an auxiliary machine distance infrared sensor and a following sensing device, the clearance distance of the blades is monitored in real time, and early warning information is sent out if a tower hitting dangerous situation occurs, and braking is carried out in an emergency;

collecting sound through an auxiliary microphone, analyzing through real-time big data of a data center, monitoring the health state of the blade in real time, and sending early warning information if a problem occurs;

the blades are subjected to close-range picture and video detection through the 4K variable-focus telescopic lens of the main machine and the auxiliary machine, and the health state of the blades of the wind driven generator is remotely and stereoscopically monitored from static state to dynamic state at any time.

By means of the scheme, the health state monitoring equipment and method for the blades of the offshore wind driven generator can realize routine inspection of the blades of the wind driven generator by the wind driven generator at any time, guarantee normal operation of the fan, timely treat the problem of finding the blades in advance, and avoid long-time shutdown of the fan and loss caused by the occurrence of large disastrous problems.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of a host and a track of an offshore wind turbine blade health monitoring device according to the present invention;

FIG. 2 is a schematic structural diagram of a host driving structure of the offshore wind turbine blade health monitoring device according to the present invention;

FIG. 3 is a schematic structural diagram of an auxiliary engine and a track of the health state monitoring equipment for the blades of the offshore wind turbine;

FIG. 4 is a schematic structural diagram of a secondary engine drive of the offshore wind turbine blade health monitoring device according to the present invention;

FIG. 5 is a schematic diagram of the installation of the auxiliary engine drive of the offshore wind turbine blade health monitoring device of the present invention.

Reference numbers in the figures:

1-host charging voltage stabilizer and protective cover; 2-fixing bolt holes; 3-charging contact ball; 4-a charging plug; 5-pre-tightening the pulley; 6-gravity balance sliding gear; 7-driving a motor; 8-a solar panel; 9-a microphone; a 10-4K zoom telescopic lens; 11-range infrared sensor; 121-track outboard runner; 122-left balance slide gear; 123-right side balance sliding gear; 13-host charging protection cabin; 14-track inside drive cog belt; 141-left toothed belt; 142-right toothed belt; 143-left drive gear; 144-right drive gear; 15-host charging slot;

16-a drive gear; 161-auxiliary left driving gear; 162-auxiliary right drive gear; 17-charging contact plug of the auxiliary machine; 18-track inside pulleys; 19-the auxiliary machine charging contact chute; 20-4K high-definition zooming telescopic lens of the auxiliary machine; 21-auxiliary microphone; 22-driving the rack and the track at the inner side of the auxiliary machine track; 221-a chute; 222-left rack; 223-right rack; 23-a secondary machine charging protection bin; 24-auxiliary solar light panel; 25-auxiliary machine infrared distance sensor; 26-auxiliary engine gravity balance block; 27-a fan.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 4, the present embodiment provides an offshore wind turbine blade health status monitoring device, including a main machine, a main machine rail, an auxiliary machine and an auxiliary machine rail;

the main machine rail is a vertical rail, is arranged at the lower part of the head of the fan 27 and is fixedly connected with the tower column of the fan in an attaching way; the main machine is connected with the main machine track in a sliding way and can move on the main machine track along the vertical direction; the host is provided with a 4K zoom telescopic lens 10, a microphone 9 and a distance infrared sensor 11 and is used for monitoring the health state of the fan blade through the 4K zoom telescopic lens 10, the microphone 9 and the distance infrared sensor 11;

the auxiliary engine track is an annular track, is arranged below the main engine track and is fixedly connected around the tower column of the fan in an attaching manner; the auxiliary engine is connected with the auxiliary engine rail in a sliding manner and can move on the auxiliary engine rail along the circumferential direction of the tower column of the fan; the auxiliary machine is provided with an auxiliary machine 4K high-definition zooming telescopic lens 20, an auxiliary machine microphone 21 and an auxiliary machine distance infrared sensor 25 and is used for monitoring the health state of the fan blade through the auxiliary machine 4K high-definition zooming telescopic lens 20, the auxiliary machine microphone 21 and the auxiliary machine distance infrared sensor 25.

In the embodiment, a host charging protection bin 13 is installed at the top of the host track, and the host charging protection bin 13 is connected with an energy storage power supply inside the cabin of the wind driven generator through a wire and used for charging and supplying power to the host; the host charging protection bin 13 is provided with a host charging voltage stabilizer and a protection cover 1, a charging contact ball 3 and a charging plug 4, and the host is provided with a host charging slot 15.

In the embodiment, an auxiliary engine charging protection bin 23 is arranged at the joint of the auxiliary engine track and the main engine track, and the auxiliary engine charging protection bin 23 is connected with an energy storage power supply inside a cabin of the wind driven generator through a lead and used for charging and supplying power to the auxiliary engine; the auxiliary charging protection bin 23 is provided with an auxiliary charging contact sliding groove 19, and the auxiliary is provided with an auxiliary charging contact plug 17.

In this embodiment, the main unit and the sub-unit are provided with solar panels, i.e., the solar panel 8 and the sub-unit solar panel 24.

In this embodiment, the host track includes a track inner side driving toothed belt 14, the track inner side driving toothed belt 14 includes a left side toothed belt 141 and a right side toothed belt 142, a left side driving gear 143 and a right side driving gear 144 respectively matched with the left side toothed belt 141 and the right side toothed belt 142 are arranged on the upper portion of the back of the host, and the left side driving gear 143 and the right side driving gear 144 are driven by a driving motor 7;

the back of the main machine is also provided with a gravity balance sliding gear 6 which is matched with the main machine track and is used for balancing the weight of the main machine, and the gravity balance sliding gear 6 comprises a left balance sliding gear 122 and a right balance sliding gear 123;

the back of the main machine is also provided with a pre-tightening pulley 5, the track of the main machine is provided with a track outside sliding groove 121, and the pre-tightening pulley 5 is in sliding connection with the track outside sliding groove 121.

The main machine is driven to drive the two gear belts on the inner side of the vertical track up and down through the left and right driving gears on the upper portion of the back of the main machine, the weight of the main machine is balanced through the two gears on the lower portion, and therefore the gravity balance of the main machine at any position on the vertical track can be achieved, and the main machine can stop at any position of the vertical track. The upper and lower pre-tightening pulleys in the middle of the back of the main machine slide in the outer sliding groove of the rail of the vertical rail of the main machine, and the upper and lower pre-tightening pulleys and the four gears realize stress balance and free sliding of the main machine and the vertical rail of the main machine. The main machine is self-driven up and down on the vertical track of the main machine to slide to inspect the fan blade.

In this embodiment, the auxiliary rail has an open lower end, the upper end of the outer part of the auxiliary rail has a rounded corner structure, the auxiliary rail comprises an inner driving rack of the auxiliary rail, the inner driving rack of the auxiliary rail comprises a left rack 222 and a right rack 223, the back of the auxiliary is provided with a driving gear 16, the driving gear 16 comprises an auxiliary left driving gear 161 and an auxiliary right driving gear 162, which are respectively matched with the left rack 222 and the right rack 223;

the upper end of the back of the auxiliary machine is provided with a rail inner side pulley 18, the auxiliary machine rail is provided with a sliding groove 221, and the rail inner side pulley 18 is connected with the sliding groove 18 in a sliding manner.

The auxiliary machine is driven to rotate by two side racks on the inner side of an auxiliary machine rail (rotating rail) through two driving gears on the back of the auxiliary machine, and the four pulleys on the upper end of the back of the auxiliary machine provide pulling force to offset the gravity of the auxiliary machine while sliding in a sliding groove (groove) in the auxiliary machine rail.

In this embodiment, the back of the sub-unit is provided with a sub-unit weight 26 for providing dynamic balance when the main unit is rotated.

In this embodiment, the main machine rail is attached to and connected with the fan tower column downward along the fan tower column by using an adhesive, the auxiliary machine rail is attached to and connected with the fan tower column through the rotation of an attaching agent, and an interface of the auxiliary machine rail is seamlessly connected with an interface inside the auxiliary machine charging and protecting bin through a bolt.

In this embodiment, host computer charging regulator and safety cover 1 pass through fixing bolt hole 2 and fan tower top fixed connection.

Referring to fig. 5, the installation method of the apparatus is as follows:

the equipment is fixed host computer track one end and host computer protection storehouse that charges in the lower part position of fan aircraft nose, installs at the top of fan tower through two mounting holes (fixing bolt hole) in host computer track top protection storehouse top of charging and bears equipment gravity to be connected for equipment power supply through line and the inside energy storage power in aerogenerator cabin. The host track uses adhesive to extend the fan tower downwards to be attached to the fan tower (the equipment is light, the host is similar to a mini unmanned plane in Xinjiang, the mass is two hundred grams, and the top fixing point and the attachment of the host track can completely bear the weight of the whole equipment). The tail end of the lower portion of the main machine track is connected with the auxiliary machine track and the auxiliary machine charging protection bin, the auxiliary machine track and the fan tower column are rotationally attached through an attaching agent, and an auxiliary machine track interface is connected through the auxiliary machine charging and the internal interface of the protection bin in a seamless mode through bolts. Because the tower column of the fan becomes thicker from top to bottom, after the circumference of the track of the auxiliary machine is fixed by bolts, the track has pretightening force from top to bottom, and the auxiliary machine is fixedly connected with the track of the main machine, the weight of the track of the auxiliary machine and the weight of the auxiliary machine can be completely born (the auxiliary machine is smaller than the main machine, the weight is lighter, and the pretightening force of the tower column to the track of the auxiliary machine can completely offset the gravity of the auxiliary machine).

The main machine comprises three small solar light panels, two signal data transmitting antennas, a driving motor, a gear, sound detection equipment (a microphone), a 4KB zoom telescopic lens, a distance infrared sensor, a storage battery and other internal structures. The top of the host track is provided with a host charging protection bin, the upper part in the bin is provided with a small charging voltage stabilizer and a charging contact head, the small charging voltage stabilizer and the charging contact head are connected with an energy storage battery in a cabin of the wind driven generator through a circuit so as to provide charging and power supply for the whole blade monitoring equipment, and the charging protection bin also provides protection for the host when necessary while the host supplies power. The device can also use three small solar panels and an internal storage battery to supply power under special conditions.

The auxiliary machine is also provided with three small solar light panels, two signal data transmitting antennas, a driving motor, a gear, an acoustic detection device (microphone), a 4KB zoom telescopic lens, a distance infrared sensor, a storage battery and other internal structures. The auxiliary engine charging protection bin is arranged at the joint of the auxiliary engine rail and the main engine rail, the auxiliary engine charging protection bin is connected with an energy storage power supply inside a cabin of the wind driven generator through a lead inside the main engine rail to supply power to the auxiliary engine, and the charging protection bin provides necessary protection for equipment in severe weather while charging for the auxiliary engine. Meanwhile, the auxiliary unit can be charged by the solar panel under special conditions. The electric energy of the auxiliary engine charging protection bin is connected with the main engine charging protection bin through a line in the main engine track, and the auxiliary engine is supplied with power through an energy storage device in the fan cabin.

The working principle of the offshore wind turbine blade health state monitoring equipment is as follows:

the working principle of the host machine is as follows:

the host computer has three modes to provide power, including direct power supply through the track, power supply of an internal storage battery and power supply of a solar light panel. Land and offshore wind turbine need when the operation and maintenance when operation a period, rotate aircraft nose and blade through fan electric barring gear host computer and host computer track place orientation (reset position), the host computer is followed host computer track and is examined from last to down, zoom telescopic lens, microphone and apart from infrared inductor to fan blade health condition through 4K and inspect, through becoming the oar with the blade when the inspection, carry out detailed inspection all around to whole blade, send early warning information if discover crackle, thunderbolt harm, pollute, freeze scheduling problem, can the accurate determination wind field which fan, which blade, which position has appeared the damage. The operation and maintenance cost can be greatly reduced, and the operation and maintenance efficiency can be improved.

The working principle of the auxiliary engine is as follows:

when the fan runs, the tower beating phenomenon can occur, the fan head and the direction of the blades are followed in real time to rotate through the auxiliary machine distance infrared sensor and the following sensing device, the clearance distance of the blades is monitored in real time, and if the tower beating dangerous situation occurs, early warning information is sent out, and the fan is braked in an emergency;

the fan blade breaks down in the operation process, for example the blade freezes, pollutes, thunderbolt, trailing edge fracture etc. for example the blade fracture can lead to the change of the pneumatic noise of blade, collects sound through auxiliary engine microphone, carries out the analysis through data center's real-time big data, and the health status of real-time supervision blade, if go wrong, send early warning information, in time the maintenance avoids damaging the fracture further expansion and causes bigger accident and economic loss.

The blades are subjected to close-range picture and video detection through the 4K variable-focus telescopic lens of the main machine and the auxiliary machine, and the health state of the blades of the wind driven generator is remotely and stereoscopically monitored from static state to dynamic state at any time.

The device and the method for monitoring the health state of the offshore wind turbine blade have the following technical effects:

1) the problem of difficult fortune dimension of aerogenerator blade is solved, reduce fortune dimension personnel's personal safety, realize intelligent unmanned fortune dimension through intelligent detection and big data analysis. Discover the problem in time of blade in advance and handle, avoid big disastrous problem to appear, cause the fan to shut down for a long time, bring the loss, realize that aerogenerator meets and regularly inspects according to the time, in order to guarantee fan normal operating, discover the problem of blade in time in advance and handle, avoid big disastrous problem to appear, cause the fan to shut down for a long time, bring the loss, avoid leading to the fan can not fortune dimension on time because of can't going out to the sea, it is hidden to avoid fortune dimension personnel to carry out the personal life safety of inspection to the fan blade through the lifting rope.

2) Because the equipment is exposed outside, the track driving toothed belt of the main machine is designed inside, so that the main machine can be stably fixed with the track while the driving device is prevented from being damaged by severe weather.

3) Because the auxiliary engine needs to rotate and is exposed to the external environment, the lower end of the auxiliary engine track adopts an opening design, the fillet design of the upper end of the external part, the vertical design of the driving gear and the toothed belt, and the gravity and the sliding of the sliding bearing equipment in the pulley.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.