Reversible atmospheric transmissometer

Abstract

The invention provides a reversible atmospheric transmissometer, and relates to the technical field of atmospheric transmissometers. The turnover atmospheric transmissometer comprises an atmospheric transmissometer body, a bracket for supporting the atmospheric transmissometer body, a turnover mechanism for driving the bracket to turn over relative to a first base, a processor in signal connection with the turnover mechanism, and an optical fiber fence arranged outside the atmospheric transmissometer in a surrounding manner, the turnover mechanism is used for adjusting the included angle between the support and the plane where the first base is located, so that the atmospheric transmissometer body can be located at a working position and one or more dumping positions; the optical fiber fence is used for acquiring a vibration signal and sending the vibration signal to the processor; the processor provides an active avoidance instruction to the turnover mechanism based on the vibration signal.

Description

TECHNICAL FIELD

[0001] The present specification relates to the technical field of atmospheric transmissometer, and particularly relates to a reversible atmospheric transmissometer. BACKGROUND

[0002] The atmospheric transmissometer is an optical device for calculating the visibility by measuring the atmospheric transmittance between two points. The atmospheric transmissometer can adopt a double-end transmission layout. The atmospheric transmissometer emits a parallel light beam through the atmospheric transmissometer emission end, detects the light intensity attenuation degree through the atmospheric transmissometer receiving end, and calculates the meteorological optical range (MOR) and runway visual range (RVR) in combination with the extinction coefficient. The atmospheric transmissometer can be installed in the ground area, the stop end and the middle area of the airport runway. The installation position of the atmospheric transmissometer can be not more than 120 meters but not less than 90 meters from one side of the runway center line, about 300 meters inward from the runway entrance and the runway stop end, and in the middle area of the runway, so as to ensure a safe distance from the aircraft operation path.

[0003] In special operation scenarios, for example, due to the hydrodynamic skidding phenomenon of heavy aircraft landing on a wet runway, resulting in brake failure, due to the lateral positioning deviation of visual approach under low visibility conditions, or due to the overrunning distance anomaly caused by the failure of the reverse thrust device during emergency landing, the aircraft may break through the runway end safety zone limit and collide with the atmospheric transmissometer, causing damage to the aircraft and / or the atmospheric transmissometer. SUMMARY

[0004] One or more embodiments of the present specification provide a self-inverted atmospheric transmissometer, comprising: an atmospheric transmissometer body, a support supporting the atmospheric transmissometer body, a turnover mechanism driving the support to turn relative to a first base, a rotating mechanism driving the first base to rotate relative to a second base, a processor signal connected with the turnover mechanism and the rotating mechanism respectively, and an optical fiber fence arranged around the atmospheric transmissometer; the turnover mechanism is used to adjust the included angle between the support and the plane where the first base is located, so that the atmospheric transmissometer body can be in a working position and one or more dumping positions; the rotating mechanism is used to rotate the atmospheric transmissometer body, the support and the first base as a whole, so as to adjust the avoidance direction of the support when turning over; the optical fiber fence is used to obtain a vibration signal and send the vibration signal to the processor; the processor generates an active avoidance strategy based on the vibration signal, and provides an active avoidance instruction to the turnover mechanism and the rotating mechanism based on the active avoidance strategy.

[0005] In some embodiments, the rotating mechanism comprises a rotating motor, the second base is fixedly arranged, the housing of the rotating motor is fixedly connected with the second base, and the driving shaft of the rotating motor penetrates through the second base and is drivingly connected with the first base; the rotating motor and the second base are arranged below the ground, and the first base is arranged above the ground.

[0006] In some embodiments, the overturning mechanism comprises an overturning linear motor, the housing of the overturning linear motor is rotatably connected with the first base, and the driving shaft of the overturning linear motor is rotatably connected with the overturning fixing member on the support.

[0007] In some embodiments, further comprising: an auxiliary sensor for acquiring an auxiliary judgment signal and sending the auxiliary judgment signal to the processor; the processor generates an active avoidance strategy based on the vibration signal and the auxiliary judgment signal; the auxiliary sensor comprises a millimeter wave reflection radar and / or a visual sensor, and the auxiliary judgment signal comprises one or more of a millimeter wave reflection signal and a light image signal.

[0008] In some embodiments, the processor generates the active avoidance strategy by joint judgment through a dynamic weight fusion model based on the vibration signal and one or more auxiliary judgment signals; the active avoidance strategy comprises instructing the rotating mechanism to drive the first base to rotate relative to the second base to make the atmospheric transmission instrument body face the avoidance direction, and / or instructing the overturning mechanism to drive the support to overturn relative to the first base to make the atmospheric transmission instrument body be in the dumping position.

[0009] In some embodiments, the processor adjusts the weights of the vibration signal and one or more auxiliary judgment signals according to environmental parameters to obtain a judgment result confidence, and generates the active avoidance strategy when the judgment result confidence meets a pre-set confidence range; wherein the environmental parameters comprise one or more of a wind speed parameter, a temperature parameter, a time parameter, and a weather parameter.

[0010] In some embodiments, the optical fence includes a plurality of optical fence zones, the optical fence is further configured to acquire a trigger time difference of vibration signals in the plurality of optical fence zones, the processor is configured to acquire first speed information of a target object causing the vibration signals based on the trigger time difference and a zone distance, the optical fence is further configured to acquire a frequency variation feature, a waveform duration, and a propagation distance of the vibration signals, the processor is configured to acquire second speed information of the target object causing the vibration signals based on the frequency variation feature, the waveform duration, and the propagation distance, the auxiliary sensor includes a millimeter wave sensor, and the auxiliary judgment signal includes third speed information of the target object, the processor is configured to generate the active avoidance strategy based on the first speed information, the second speed information, and the third speed information, and the active avoidance strategy includes adjusting a flipping speed of the support based on the speed information of the target object.

[0011] In some embodiments, the auxiliary judgment signal further includes distance information, horizontal azimuth information, vertical azimuth information, and height information of the target object, the processor is configured to predict a possible collision direction and a first possible collision height based on the vibration signals and the auxiliary judgment signal, and generate the active avoidance strategy based on the possible collision direction and the first possible collision height, and the active avoidance strategy includes adjusting an avoidance direction of the support based on the possible collision direction and / or adjusting an included angle between the support and a plane where the first base is located based on the first possible collision height.

[0012] In some embodiments, the auxiliary sensor includes a vision sensor, the auxiliary judgment signal includes continuous frame images of the target object and time stamps corresponding to the continuous frame images, the processor is configured to acquire an instantaneous motion vector of the target object and predict a second possible collision height based on the vibration signals and the auxiliary judgment signal, and generate the active avoidance strategy based on the first possible collision height and the second possible collision height.

[0013] In some embodiments, the active avoidance strategy includes adjusting the included angle between the support and the plane where the first base is located based on a lower height value between the first possible collision height and the second possible collision height.

[0014] In some embodiments, further comprising: a protective cage, the atmospheric transmission instrument body is fixed in the protective cage, and the protective cage is detachably fixedly connected with the support. The protective cage comprises a cage body, a cover body rotatably connected with the cage body, and a closing motor driving the cover body to rotate relative to the cage body; the cover body is configured to be in an open state when the atmospheric transmission instrument body is in the working position, and the cover body is in a closed state when the atmospheric transmission instrument body is in the dumping position; and the closing motor drives the cover body to rotate relative to the cage body based on the active avoidance strategy.

[0015] In some embodiments, one end of the protective cage is flush with a side surface of the support, the side surface of the support is provided with a support damping device, and the outside of the protective cage is provided with a protective cage damping device. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present specification will be further illustrated in the manner of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The same reference numbers in the drawings represent the same structures or steps.

[0017] Figure 1 is a schematic view of an inductive self-dumping atmospheric transmission instrument according to some embodiments of the present specification.

[0018] Figure 2 is a structural schematic view of an inductive self-dumping atmospheric transmission instrument according to some embodiments of the present specification.

[0019] Figure 3 is a schematic view of an optical fiber fence of an inductive self-dumping atmospheric transmission instrument according to some embodiments of the present specification.

[0020] Figure 4 is a turnover schematic view of an inductive self-dumping atmospheric transmission instrument according to some embodiments of the present specification.

[0021] Figure 5 is a rotation schematic view of an inductive self-dumping atmospheric transmission instrument according to some embodiments of the present specification.

[0022] Figure 6 is a schematic view of a protective cage of an inductive self-dumping atmospheric transmission instrument according to some embodiments of the present specification.

[0023] Figure 7 is a schematic view of a protective area of an optical fiber fence of an inductive self-dumping atmospheric transmission instrument according to some embodiments of the present specification.

[0024] Marked in the figure: 1 atmospheric transmission instrument body; 2 support; 31 overturning mechanism; 32 rotating mechanism; 41 first base; 42 second base; 5 processor; 6 optical fiber fence; 61 first optical fiber fence defense area; 62 second optical fiber fence defense area; 7 auxiliary sensor; 8 protective cage; 81 cage body; 82 cover body; 83 closing motor; 84 bird repelling structure. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the embodiments will be described in detail below with reference to the drawings. Obviously, the following description is some examples or embodiments of the present specification, and those skilled in the art can also apply the technical solutions or means disclosed in the present specification to other scenarios without creative labor.

[0026] It should be understood that the "system", "device", "equipment", "part" and / or "unit" and / or "module" used in the present specification is a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0027] In the present specification, the technical terms of components, elements, etc. are not specified by single number unless otherwise specified, and can also include plural. Generally speaking, the terms "include", "contain" and the like only indicate the inclusion of the steps, elements or components explicitly identified, and these steps, elements and components do not constitute an exclusive list, and the method or device described can also include other steps or components.

[0028] In the description of the present specification, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present specification, unless otherwise expressly limited, the words setting, installing, connecting and the like should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present specification in combination with the specific content of the technical solution.

[0029] The atmospheric transmissometer is an optical device for calculating the visibility by measuring the atmospheric transmissivity between two points. The atmospheric transmissometer can adopt a double-end opposite shooting layout. The atmospheric transmissometer emits a parallel light beam through the atmospheric transmissometer emission end, detects the light intensity attenuation degree through the atmospheric transmissometer receiving end, and calculates the meteorological optical range (MOR) and runway visual range (RVR) in combination with the extinction coefficient. In some embodiments, the atmospheric transmissometer can serve the real-time monitoring of the airport runway visual range, provide key meteorological data for the take-off and landing of aircraft (such as airplanes), especially in low-visibility conditions such as low clouds, fog, rain, etc., the value of which directly affects flight safety and flight scheduling.

[0030] In some embodiments, the atmospheric transmissometer (such as the atmospheric transmissometer emission end and / or the atmospheric transmissometer receiving end) can be installed in the ground area, the stopping end and the middle area of the airport runway. In some embodiments, the installation position of the atmospheric transmissometer can be not more than 120 meters but not less than 90 meters away from one side of the runway center line, about 300 meters inward from the runway entrance and the runway stopping end, and in the middle area of the runway, to ensure a safe distance from the aircraft operation path. In some embodiments, the arrangement distance between the atmospheric transmissometer emission end and the atmospheric transmissometer receiving end can be 25-75 meters.

[0031] However, in special operating scenarios, the aforementioned layout mode still has certain safety hazards. In some embodiments, in the case of fluid dynamics slipstream phenomenon of heavy aircraft landing on a wet runway causing brake failure, lateral positioning deviation of visual approach in low-visibility conditions, or overshoot distance anomaly caused by thrust reverser failure in emergency landing, the aircraft may break through the runway end safety zone limit and collide with the atmospheric transmissometer, causing damage to the aircraft and / or the atmospheric transmissometer.

[0032] Based on this, one or more embodiments of the present specification provide a sensing self-falling atmospheric transmissometer which can avoid damage to the aircraft and / or the atmospheric transmissometer by falling away based on the vibration generated by the landing or approaching of the aircraft.

[0033] Figure 1 is a schematic diagram of a sensing self-falling atmospheric transmissometer according to some embodiments of the present specification, Figure 2 is a structural schematic diagram of a sensing self-falling atmospheric transmissometer according to some embodiments of the present specification. Referring to Figures 1 to 2 As shown, the sensing self-falling atmospheric transmissometer can include: an atmospheric transmissometer body 1, a support 2 supporting the atmospheric transmissometer body 1, a turnover mechanism 31 driving the support 2 to turn over relative to a first base 41, a rotation mechanism 32 driving the first base 41 to rotate relative to a second base 42, a processor 5 signal connected with the turnover mechanism 31 and the rotation mechanism 32 respectively, and a fiber fence 6 arranged around the outside of the atmospheric transmissometer.

[0034] In some embodiments, the atmospheric transmission instrument body 1 can be an atmospheric transmission instrument transmitting end or an atmospheric transmission instrument receiving end. In some embodiments, the atmospheric transmission instrument transmitting end and the atmospheric transmission instrument receiving end can have independent supports 2, first bases 41, second bases 42, overturning mechanisms 31 and rotating mechanisms 32, respectively, to drive the atmospheric transmission instrument transmitting end and the atmospheric transmission instrument receiving end independently. In some embodiments, the atmospheric transmission instrument transmitting end and the atmospheric transmission instrument receiving end can be signal connected to independent processors 5 for independent control. In other embodiments, the atmospheric transmission instrument transmitting end and the atmospheric transmission instrument receiving end can be signal connected to the same processor 5 for synchronous control or independent control based on the same processor 5.

[0035] In some embodiments, the processor 5 can be one or a combination of the following processors: a central processing unit (CPU), an application-specific integrated circuit (ASIC), an application-specific instruction-set processor (ASIP), a graphics processing unit (GPU), a physics processing unit (PPU), a digital signal processor (DSP), a field-programmable gate array (FPGA), a programmable logic device (PLD), a programmable logic controller (PLC), a reduced instruction set computer (RISC), a microprocessor, etc. In some embodiments, the processor 5 can be disposed in the atmospheric transmission instrument, for example, in the atmospheric transmission instrument body 1 or the support 2. In some embodiments, the processor 5 can be disposed outside the atmospheric transmission instrument and signal connected to the overturning mechanism 31, the rotating mechanism 32 and the optical fiber fence 6 through wired / wireless means.

[0036] In one or more embodiments of the present specification, the optical fiber fence 6 is used to obtain a vibration signal (for example, a change in the optical signal generated by the vibration of the optical fiber) and send the vibration signal to the processor 5. In some embodiments, referring to FIG. 1, the optical fiber fence 6 can be signal connected to the processor 5 through the overturning mechanism 31 and the rotating mechanism 32. Figure 3As shown, the optical fiber fence 6 can include a laser emitting device, a laser receiving device, an optical fiber connecting the laser emitting device and the laser receiving device, and a vibration detection module for monitoring the light signal acquired by the laser receiving device. In some embodiments, the laser emitting device is configured to generate a laser. In some embodiments, the laser receiving device is configured to receive the backscattered light of the laser. In some embodiments, the optical fiber can include one or more cores, a cladding layer surrounding the one or more cores, and a coating layer surrounding the cores, wherein the cores can be configured to transmit the light signal, and the cladding layer and the coating layer can be configured to provide mechanical protection. In some embodiments, the optical fiber can be laid on the ground and / or underground. In some embodiments, the processor 5 is configured to determine the position where the optical fiber is vibrated, disturbed, or damaged. In some embodiments, when the aircraft touches the optical fiber or causes the optical fiber to vibrate, the light signal changes due to the vibration and / or pressure on the optical fiber, and the processor 5 determines the position where the optical fiber is vibrated, disturbed, or damaged based on the change in the light signal.

[0037] In some embodiments, the atmospheric transmission instrument body 1 is configured to be in one or more working positions and one or more dumping positions, and the turnover mechanism 31 and the rotation mechanism 32 are configured to drive the atmospheric transmission instrument body 1 to be in the working position or in one or more dumping positions.

[0038] In some embodiments, the atmospheric transmission instrument emitting end and the atmospheric transmission instrument receiving end can be in one or more working positions. In some embodiments, the heights of the plurality of working positions are different. In some embodiments, the height of the atmospheric transmission instrument emitting end and the atmospheric transmission instrument receiving end is adjusted to enable the atmospheric transmission instrument receiving end to accurately acquire the parallel light beam emitted by the atmospheric transmission instrument emitting end.

[0039] In some embodiments, the atmospheric transmission instrument emitting end and the atmospheric transmission instrument receiving end can be in one or more dumping positions. In some embodiments, the heights of the plurality of dumping positions are different to adapt to different avoidance requirements.

[0040] In some embodiments, the atmospheric transmission instrument emitting end and the atmospheric transmission instrument receiving end can be in the dumping position to implement avoidance, and can be restored to the working position after the dumping is implemented.

[0041] For example, in the initial state, the atmospheric transmission instrument emitting end and the atmospheric transmission instrument receiving end are in the working position; when the aircraft approaches, the atmospheric transmission instrument emitting end or the atmospheric transmission instrument receiving end is rotated to a higher first dumping position or a lower second dumping position according to the avoidance requirement; after the avoidance ends, the atmospheric transmission instrument emitting end and the atmospheric transmission instrument receiving end are restored to the working position.

[0042] In one or more embodiments of this specification, the atmospheric transilluminator may include a flipping mechanism 31, which is used to adjust the angle between the plane where the support 2 and the first base 41 are located, so that the atmospheric transilluminator body 1 can be in a working position and one or more tilting positions.

[0043] In one or more embodiments of this specification, the atmospheric transilluminator may include a flipping mechanism 31 and a rotating mechanism 32. In some embodiments, the flipping mechanism 31 is used to adjust the angle between the plane containing the support 2 and the first base 41, so that the atmospheric transilluminator body 1 can be in a working position and one or more tilting positions. In some embodiments, the rotating mechanism 32 is used to rotate the atmospheric transilluminator body 1, the support 2, and the first base 41 as a whole, thereby adjusting the avoidance direction of the support 2 during flipping.

[0044] In one or more embodiments of this specification, see Figure 1 , Figure 4 As shown, the flipping mechanism 31 may include: a flipping linear motor, the housing of which is rotatably connected to the first base 41, and the drive shaft of which is rotatably connected to a flipping fixing member on the bracket 2. In some embodiments, the flipping fixing member may be a component arranged on the bracket 2, such as an ear plate, for realizing the rotatable connection between the drive shaft of the flipping linear motor and the bracket 2. In other embodiments, the flipping fixing member may also be a rotating shaft extending outward from the side of the bracket 2, or a rotating shaft hole provided on the bracket 2 for realizing the rotatable connection between the drive shaft of the flipping linear motor and the bracket 2.

[0045] In some embodiments, the first base 41 may be disposed on the ground. In some embodiments, the first base 41 may be disposed above the ground. In some embodiments, the first base 41 may have a gap with the ground. In some embodiments, the first base 41 is configured to rotate relative to the ground. In some embodiments, the ground may have a pit, the first base 41 is disposed in the pit, and is configured to rotate relative to the pit. In some embodiments, the lower part of the housing of the flipping linear motor is rotatably connected to the upper surface of the first base 41 via a pivot shaft and a bearing seat or similar structure. In some embodiments, there is a gap between the lower part of the housing of the flipping linear motor and the support 2.

[0046] In some embodiments, the overturning linear motor controls the overturning of the support 2 through linear displacement of the driving shaft. For example, when the driving shaft of the overturning linear motor is elongated, the support 2 is moved towards a direction of tilting or tilting. For example, when the driving shaft of the overturning linear motor is shortened, the support 2 is moved towards a direction of standing or standing. In some embodiments, the tilting position of the support 2 can be controlled by controlling the linear displacement of the driving shaft of the overturning linear motor.

[0047] In some embodiments, the tilting position can be determined based on the length of the support 2 and the included angle between the support 2 and the plane where the first base 41 is located. In some embodiments, the overturning linear motor controls the included angle between the support 2 and the plane where the first base 41 is located through the linear displacement of the driving shaft, thereby controlling the atmospheric transmission instrument body 1 to be in multiple tilting positions. In some embodiments, the included angle between the support 2 and the plane where the first base 41 is located can be 0° to 90°, for example, 0°, 15°, 20°, 25°, 30°, 33.5°, 45°, 60°, 76.6°, 90°, etc.

[0048] In some embodiments, the overturning mechanism 31 can be implemented in other ways. For example, the overturning mechanism 31 can include a steel cable, one end of the steel cable is fixedly connected with the first base 41, the other end of the steel cable passes through a ring structure arranged on the upper part of the support 2 and is fixedly connected with a winch arranged on the ground or on the second base 42, and the overturning of the support 2 is realized by winding or unwinding the cable through the winch.

[0049] In one or more embodiments of the present specification, see Figure 1 , Figure 5As shown, the rotating mechanism 32 can include a rotating motor, the second base 42 is fixedly arranged on the ground, the housing of the rotating motor is fixedly connected with the second base 42, and the driving shaft of the rotating motor penetrates through the second base 42 and is drivingly connected with the first base 41. In some embodiments, the second base 42 is annular, the driving shaft of the rotating motor penetrates through the center hole of the second base 42 and is drivingly connected with the first base 41. In some embodiments, the driving shaft of the rotating motor can be fixedly connected with the first base 41. In some embodiments, the driving shaft of the rotating motor can be drivingly connected with the first base 41 through a transmission mechanism. In some embodiments, the transmission mechanism can be a gear transmission mechanism. In some embodiments, a driving gear is arranged on the driving shaft of the rotating motor, and a driven gear is arranged on the first base 41, and the driving gear is drivingly connected with the driven gear. In some embodiments, the driving gear is drivingly connected with the driven gear through one or more transmission gears. In some embodiments, a clutch can be arranged between the driving shaft of the rotating motor and the first base 41. In some embodiments, a clutch is arranged between the driving gear and the driven gear. In other embodiments, the transmission mechanism can be a belt transmission mechanism or a chain transmission mechanism.

[0050] In some embodiments, the second base 42 can be arranged on the ground. In some embodiments, the second base 42 is fixed on the ground, the first base 41 is rotatably arranged on the upper surface of the second base 42 or above the second base 42, and the rotating motor is arranged below the second base 42. In some embodiments, the second base can be formed with a receiving cavity, the rotating motor is arranged in the receiving cavity, and the housing of the rotating motor is fixedly connected with the bottom or inner wall of the receiving cavity. In some embodiments, the rotating motor and the second base 42 can be arranged below the ground, and the first base 41 can be arranged above the ground.

[0051] In some embodiments, the rotating motor controls the overall rotation of the support 2 and the first base 41 through the rotation of the driving shaft, so as to adjust the avoidance direction of the support 2 when it is overturned. In some embodiments, the avoidance direction refers to the orientation of the top end of the support 2 when it is overturned. In some embodiments, the avoidance direction is adjusted by the rotating motor, so that the support 2 is in a suitable position when it is overturned and dumped. For example, the support 2 and the atmosphere transmissometer body 1 thereon are dumped towards the direction away from the aircraft, so that the atmosphere transmissometer body 1 moves towards the direction away from the aircraft when the aircraft approaches, thereby avoiding collision or delaying the time of collision.

[0052] In some embodiments, the rotating motor rotates the support 2 and the first base 41 as a whole to make the avoidance direction of the support 2 when it is tilted to be towards one or more sectors. In some embodiments, the processor 5 can distinguish the plurality of sectors into safe sectors and alert sectors according to the aircraft. In some embodiments, the safe sectors are configured such that when the support 2 is tilted towards the direction of the safe sectors, it will not or is not easy to collide with the aircraft. In some embodiments, the alert sectors are configured such that when the support 2 is tilted towards the direction of the safe sectors, it will or is easy to collide with the aircraft. In some embodiments, the rotating motor rotates the support 2 and the first base 41 as a whole to make the avoidance direction to be away from the alert sectors and into the safe sectors. Exemplarily, the number of sectors can be four, five, six, seven. In some embodiments, the number of sectors can also be more than ten. In other embodiments, the rotating motor rotates the support 2 and the first base 41 as a whole to make the avoidance direction towards an angle away from the direction of the aircraft. Exemplarily, the direction of the aircraft is the horizontal angle 0° direction, then the rotating motor rotates to make the avoidance direction towards the horizontal angle between 160° and 200°, for example, 180° direction. Exemplarily, the direction of the aircraft is the horizontal angle 90° direction, then the rotating motor rotates to make the avoidance direction towards the horizontal angle between 180° and 360°, for example, 270° direction.

[0053] In some embodiments, the support 2 can be a rod structure. In other embodiments, the support 2 can also be a truss structure. In some embodiments, the support 2 can include a plurality of support units (for example, cylindrical or circular table units, or for example, truss units) fixedly connected by connecting pieces. In some embodiments, the connecting pieces of the support units can be bolts. In some embodiments, the connecting pieces of the support units are arranged along the axial direction of the support 2, which is convenient to break when subjected to shear force, so as to make one or more support units separate from each other, thereby avoiding damage to the aircraft.

[0054] In one or more embodiments of the present specification, the processor 5 generates an active avoidance strategy based on the vibration signal, and provides active avoidance instructions to the overturning mechanism 31 and the rotating mechanism 32 based on the active avoidance strategy.

[0055] In some embodiments, the active avoidance strategy includes instructing the overturning mechanism 31 to drive the support 2 to overturn relative to the first base 41 to make the atmospheric transmissometer body 1 be in a tilted position. In some embodiments, the active avoidance strategy includes the stroke of the overturning mechanism 31 (for example, the stroke of the overturning linear motor) to make a specific included angle between the support 2 and the plane where the first base 41 is located, so as to make the atmospheric transmissometer body 1 be in a working position or a specific tilted position. In some embodiments, the active avoidance strategy also includes the working speed of the overturning mechanism 31 (for example, the extension and retraction speed of the overturning linear motor).

[0056] In some embodiments, the active avoidance strategy includes instructing the rotating mechanism 32 to drive the first base 41 to rotate relative to the second base 42 to direct the atmospheric transmission instrument body towards the avoidance direction. In some embodiments, the active avoidance strategy includes the rotating angle of the rotating mechanism 32 (e.g. the rotating angle of the rotating motor) to direct the bracket 2 and the atmospheric transmission instrument body 1 to the specific avoidance direction when the bracket 2 and the atmospheric transmission instrument body 1 are flipped or tilted. In some embodiments, the active avoidance strategy further includes the working speed of the rotating mechanism 32 (e.g. the rotating speed of the rotating motor).

[0057] In some embodiments, the active avoidance strategy further includes the motion strategy of the flipping mechanism 31 and the rotating mechanism 32. In some embodiments, the rotating mechanism 32 is configured to act before the flipping mechanism 31. In some embodiments, the flipping mechanism 31 starts to act after the rotating mechanism 32 finishes the action. In some embodiments, the rotating mechanism 32 starts to act first, and during the action of the rotating mechanism 32, the flipping mechanism 31 starts to act. In some embodiments, the rotating mechanism 32 and the flipping mechanism 31 are configured to start to act simultaneously.

[0058] In one or more embodiments of the present specification, the atmospheric transmission instrument further includes an auxiliary sensor 7, the auxiliary sensor 7 is configured to acquire an auxiliary judgment signal and send the auxiliary judgment signal to the processor 5. In some embodiments, the processor 5 generates the active avoidance strategy based on the vibration signal and the auxiliary judgment signal. In some embodiments, the auxiliary sensor 7 includes a millimeter wave reflection radar and / or a vision sensor, and the auxiliary judgment signal includes one or more of a millimeter wave reflection signal and a light image signal. In some embodiments, the auxiliary sensor 7 can be arranged on the outer surface of the atmospheric transmission instrument. In some embodiments, the auxiliary sensor 7 can be arranged at the top end of the atmospheric transmission instrument body 1.

[0059] In one or more embodiments of the present specification, the processor 5 generates an active avoidance strategy based on the vibration signal and the auxiliary judgment signals, and provides an active avoidance instruction to the overturning mechanism 31 and the rotating mechanism 32 based on the active avoidance strategy. In some embodiments, the processor 5 generates the active avoidance strategy by joint judgment through a dynamic weight fusion model based on the vibration signal, one or more auxiliary judgment signals. In some embodiments, the dynamic weight fusion model can be obtained based on AI training. In some embodiments, the active avoidance strategy includes controlling the overturning mechanism 31 and the rotating mechanism 32 to drive the atmospheric transmission instrument body 1 to move to a dumping position or one of a plurality of dumping positions. In some embodiments, the active avoidance strategy can include one or more of the dumping position of the bracket 2 and the atmospheric transmission instrument body 1, the stroke of the overturning mechanism 31, the working speed of the overturning mechanism 31, the avoidance direction of the bracket 2 and the atmospheric transmission instrument body 1, the rotation angle of the rotating mechanism 32, the working speed of the rotating mechanism 32, and the movement strategy of the overturning mechanism 31 and the rotating mechanism 32, which will not be described here.

[0060] In some embodiments, the processor 5 generates the active avoidance strategy by joint judgment through a dynamic weight fusion model based on the vibration signal, one or more auxiliary judgment signals can include: the processor 5 adjusts the weight of the vibration signal and one or more auxiliary judgment signals according to the environmental parameters to obtain a judgment result confidence, and generates the active avoidance strategy when the judgment result confidence meets a pre-set confidence range. In some embodiments, the environmental parameters can include one or more of wind speed parameters, temperature parameters, time parameters, weather parameters, etc.

[0061] In some embodiments, the processor 5 adjusts the weight of the vibration judgment result confidence based on the vibration signal and the weight of each auxiliary judgment result confidence based on each auxiliary judgment signal according to the environmental parameters to obtain the judgment result confidence.

[0062] For example, the processor 5 obtains a vibration judgment result confidence based on the vibration signal, and obtains an auxiliary judgment result confidence based on each auxiliary judgment signal. In some embodiments, the judgment result confidence is used to represent the possibility that the atmospheric transmission instrument body 1 needs to avoid based on the corresponding signal. For example, the vibration judgment result confidence A 振动 represents the possibility that the atmospheric transmission instrument body 1 needs to avoid based on the vibration signal. Similarly, the auxiliary judgment result confidence can include a millimeter wave judgment result confidence B 毫米波 and a visual judgment result confidence C 视觉 In some embodiments, the judgment result confidence can be expressed in percentage.

[0063] In some embodiments, each judgment result confidence has its corresponding weight. For example, the vibration judgment result confidence A振动 The weight can be C A Confidence level B of millimeter wave judgment results 毫米波 The weight can be C B Confidence level C of visual judgment results 视觉 The weight can be C C .

[0064] In some embodiments, processor 5 can adjust weight C based on environmental parameters. A Weight C B Weight C C And obtain the confidence level of the judgment result. In some embodiments, the confidence level C of the judgment result is... result =C A A 振动 +C B B 毫米波 + C C C 视觉 In some embodiments, the confidence level C of the judgment result is... result It can be expressed as a percentage.

[0065] In some embodiments, processor 5 can acquire environmental parameters and adjust weight C based on the environmental parameters. A Weight C B Weight C C .

[0066] For example, environmental parameters may include wind speed parameters, and processor 5 can adjust the weights based on the wind speed parameters. For instance, when the ambient wind speed is greater than a preset wind speed, since wind speed affects the vibration of the fiber optic fence 6, processor 5 can reduce the confidence level A of the vibration judgment result through a dynamic weight fusion model. 振动 weight C A At the same time, improve the confidence level of millimeter wave judgment results B 毫米波 weight C B And the confidence level C of the visual judgment result 视觉 weight C C .

[0067] For example, environmental parameters may include time parameters, and processor 5 can adjust weights based on these time parameters. For instance, when it is nighttime, lighting conditions affect the acquisition of light signals by the visual sensor; therefore, processor 5 can reduce the confidence level C of the visual judgment result through a dynamic weight fusion model. 视觉 weight C C At the same time, improve the confidence level of millimeter wave judgment results B 毫米波 weight C B .

[0068] In some embodiments, the processor 5 can also acquire multiple environmental parameters and collaboratively adjust the weight C based on these multiple environmental parameters.A , weight C B , weight C C .

[0069] For example, in a rainy and snowy day, the processor 5 can adjust (e.g. increase or decrease according to other weights) the weight C 振动 of the vibration judgment result confidence A A within a certain range, reduce the weight C 视觉 of the visual judgment result confidence C C affected by the visual limitation of rain and snow, and increase the weight C 毫米波 of the millimeter wave judgment result confidence B B through the dynamic weight fusion model.

[0070] For example, in a windy night, the processor 5 can reduce the weight C 振动 of the vibration judgment result confidence A A affected by vibration and the weight C 视觉 of the visual judgment result confidence C C affected by the visual limitation of night, and increase the weight C 毫米波 of the millimeter wave judgment result confidence B B through the dynamic weight fusion model.

[0071] For example, in a strong wind and heavy rain day (e.g. typhoon weather), the processor 5 can reduce the weight C 毫米波 of the millimeter wave judgment result confidence B B significantly affected by signal attenuation and the weight C 振动 of the vibration judgment result confidence A A affected by vibration, and increase the weight C 视觉 of the visual judgment result confidence C C through the dynamic weight fusion model.

[0072] For example, in a general weather day, the processor 5 can make the weight C 振动 of the vibration judgment result confidence A A mainly, and make the weight C 毫米波 of the millimeter wave judgment result confidence B B and the weight C 视觉 of the visual judgment result confidence C C share the remaining weight through the dynamic weight fusion model.

[0073] In some embodiments, the processor 5 generates an active avoidance strategy when the judgment result confidence C resultWhen the percentage is greater than 80%, 85%, 88%, 90%, or 92%, the processor 5 generates an active avoidance strategy. In some embodiments, the processor 5 can generate the active avoidance strategy based on one or more of the vibration signals, the millimeter wave reflection signals, and the light image signals.

[0074] In one or more embodiments of the present disclosure, the fiber fence 6 can include a plurality of fiber fence zones, and the fiber fence 6 is further configured to obtain a trigger time difference of the vibration signals in the plurality of fiber fence zones, and the processor 5 is configured to obtain first speed information of a target object causing the vibration signals based on the trigger time difference and a distance between the zones, and generate the active avoidance strategy based on the first speed information. In some embodiments, the target object can be an aircraft. In some embodiments, the aircraft can include a passenger aircraft, a cargo aircraft, a military aircraft, a helicopter, a glider, a drone, a balloon, a dirigible, etc. In some embodiments, the target object can include movable ground maintenance equipment, such as a runway maintenance vehicle, a lift platform vehicle, an air supply vehicle, etc.

[0075] In some embodiments, referring to FIG. 1, the fiber fence 6 can include a first fiber fence zone 61 (e.g., the outer dashed portion in FIG. 1) and a second fiber fence zone 62 (e.g., the middle dashed portion in FIG. 1). In some embodiments, the second fiber fence zone 62 surrounds the atmosphere transmission instrument body 1, and the first fiber fence zone 61 surrounds the second fiber fence zone 62. In some embodiments, when an aircraft approaches the atmosphere transmission instrument body 1, the first fiber fence zone 61 generates a vibration before the second fiber fence zone 62, so there is a trigger time difference between the two, and the processor calculates the first speed information of the aircraft based on the trigger time difference and the distance between the first fiber fence zone 61 and the second fiber fence zone 62, and generates the active avoidance strategy based on the first speed information. Figure 7 Figure 7 In some embodiments, the fiber fence 6 can include more fiber fence zones, such as four fiber fence zones, four to ten fiber fence zones, or more than ten fiber fence zones. In some embodiments, the fiber fence zones of the fiber fence 6 can be arranged in an array, such as a rectangular array, a circular array, etc. In some embodiments, multi-zone cooperative detection can reduce speed measurement errors. Figure 7

[0076] In some embodiments, referring to FIG. 1, the fiber fence 6 can include a first fiber fence zone 61 (e.g., the outer dashed portion in FIG. 1) and a second fiber fence zone 62 (e.g., the middle dashed portion in FIG. 1). In some embodiments, the second fiber fence zone 62 surrounds the atmosphere transmission instrument body 1, and the first fiber fence zone 61 surrounds the second fiber fence zone 62. In some embodiments, when an aircraft approaches the atmosphere transmission instrument body 1, the first fiber fence zone 61 generates a vibration before the second fiber fence zone 62, so there is a trigger time difference between the two, and the processor calculates the first speed information of the aircraft based on the trigger time difference and the distance between the first fiber fence zone 61 and the second fiber fence zone 62, and generates the active avoidance strategy based on the first speed information.

[0077] ​​In some embodiments, the fiber fence 6 can acquire the frequency variation feature of the vibration signal (the vibration signal generated by the aircraft engine or rotor has a specific frequency modulation characteristic, for example, the frequency of the rotor of a helicopter is about 100-500 Hz), the waveform duration, and the propagation distance, and the processor 5 acquires the second speed information of the target object causing the vibration signal based on the frequency variation feature, the waveform duration, and the propagation distance, and generates the active avoidance strategy based on the second speed information.

[0078] In the above embodiments, the processor 5 can generate the active avoidance strategy based on one or both of the first speed information and the second speed information.

[0079] In some embodiments, the auxiliary sensor 7 can include a millimeter wave sensor, which can be used at least to acquire the third speed information of the target object. In some embodiments, the processor 5 generates the active avoidance strategy based on one or more of the first speed information, the second speed information, and the third speed information.

[0080] In one or more embodiments of the present specification, the active avoidance strategy includes adjusting the overturning speed of the support 2 based on the speed information of the target object.

[0081] In some embodiments, when the first fiber fence area 61 of the fiber fence 6 is triggered, the millimeter wave sensor continues to track the coordinates of the target object, and calculates the possible collision time based on one or more of the first speed information, the second speed information, and the third speed information. In some embodiments, if the possible collision time is less than a preset value, for example, less than 10s, the processor 5 provides an active avoidance instruction to the overturning mechanism 31, so that the overturning mechanism 31 drives the support 2 and the atmospheric transmission instrument body 1 to overturn or dump at a preset speed, thereby reducing the height of the atmospheric transmission instrument body 1 and avoiding collision. In other embodiments, if the possible collision time is less than a first preset value but greater than a second preset value, the processor 5 provides an active avoidance instruction to the overturning mechanism 31, so that the overturning mechanism 31 drives the support 2 and the atmospheric transmission instrument body 1 to overturn or dump at a first preset speed; if the possible collision time is less than the second preset value, the processor 5 provides an active avoidance instruction to the overturning mechanism 31, so that the overturning mechanism 31 drives the support 2 and the atmospheric transmission instrument body 1 to overturn or dump at a second preset speed, the second preset speed being greater than the first preset speed.

[0082] In one or more embodiments of the present specification, the auxiliary sensor comprises a millimeter wave sensor, the auxiliary judgment signal comprises distance information, azimuth information, height information and third speed information of the target object, the processor 5 predicts a possible collision direction and a first possible collision height based on the vibration signal and the auxiliary judgment signal, and generates an active avoidance strategy based on the possible collision direction and the first possible collision height. In some embodiments, the active avoidance strategy can comprise adjusting the avoidance direction of the support based on the possible collision direction, and / or adjusting the included angle between the support and the plane where the first base is located based on the first possible collision height.

[0083] In some embodiments, the auxiliary sensor comprises a visual sensor, the auxiliary judgment signal comprises continuous frame images of the target object and time stamps corresponding to the continuous frame images, the processor 5 obtains an instantaneous motion vector of the target object and predicts a second possible collision height based on the vibration signal and the auxiliary judgment signal, and generates an active avoidance strategy based on the first possible collision height and the second possible collision height. In some embodiments, the active avoidance strategy can comprise adjusting the avoidance direction of the support based on the possible collision direction, and / or adjusting the included angle between the support and the plane where the first base is located based on the first possible collision height. In other embodiments, the active avoidance strategy can comprise adjusting the included angle between the support and the plane where the first base is located based on the lower height value between the first possible collision height and the second possible collision height.

[0084] In some embodiments, the processor 5 can calculate the relative position of the target object to the ground projection of the atmospheric transmission instrument body 1 according to the azimuth and distance of the target object. In some embodiments, the processor 5 can predict a possible collision height interval within a future time range based on the height information of the target object (such as an aircraft or the like) and the current height of the atmospheric transmission instrument body 1, and control the overturning mechanism 31 to drive the support 2 and the atmospheric transmission instrument body 1 to overturn or dump to a certain dumping position based on the possible collision height interval, so as to reduce the height of the atmospheric transmission instrument body 1 and thereby escape from the possible collision height interval. In some embodiments, the processor 5 can further correct the model based on the vibration information provided by the optical fiber fence 6 and / or the light image information provided by the visual sensor. For example, strong vibration corresponds to a large mass of the target object, so as to expand the range of the possible collision height interval, or adjust the range of the possible collision height interval based on the light image information.

[0085] In some embodiments, the processor 5 can calculate the possible collision direction of the target object relative to the ground projection of the atmospheric transmission instrument body 1 according to the azimuth of the target object. In some embodiments, the processor 5 can predict the possible collision direction based on the azimuth, the change amount of the azimuth, and the change rate of the azimuth, and control the rotating mechanism 32 to drive the support 2 and the atmospheric transmission instrument body to rotate so that the avoidance direction escapes from the warning sector and moves towards the safe sector based on the possible collision direction.

[0086] In one or more embodiments of the present specification, the active avoidance strategy can specifically include a flipping speed of the atmospheric transmissometer body 1. In some embodiments, the processor 5 can adjust the flipping speed of the support 2 and the atmospheric transmissometer body 1 based on the signals provided by the optical fiber fence 6 and the one or more auxiliary sensors.

[0087] For example, the active avoidance strategy can include: based on the possible collision height or the possible collision height interval, making the atmospheric transmissometer body 1 be in a second dumping position below the height of a first dumping position. Wherein, the first dumping position makes the atmospheric transmissometer body 1 be at the possible collision height. In some embodiments, the second dumping position can be set considering the volume of the target object. In some embodiments, the second dumping position can also be set considering the speed of the atmospheric transmissometer body 1 at the first dumping position.

[0088] In some embodiments, during the flipping or dumping of the support 2 and the atmospheric transmissometer body 1, when the support 2 and the atmospheric transmissometer body 1 are above the first dumping position, the flipping speed of the support 2 and the atmospheric transmissometer body 1 is increased so as to reach the first dumping position as soon as possible.

[0089] In some embodiments, during the lowering of the support 2 and the atmospheric transmissometer body 1, when the support 2 and the atmospheric transmissometer body 1 are between the first dumping position and the second dumping position, the lowering speed of the support 2 and the atmospheric transmissometer body 1 is gradually reduced. Since the support 2 and the atmospheric transmissometer body 1 accelerate to descend, they can reach the maximum speed near the first dumping position. In order to avoid damage to the atmospheric transmissometer body 1 due to vibration caused by high speed or direct collision with the ground or underground surface, the lowering speed of the atmospheric transmissometer body 1 can be reduced between the first dumping position and the second dumping position until the speed of the atmospheric transmissometer body 1 is eventually zero.

[0090] In one or more embodiments of the present specification, the atmospheric transmissometer further comprises: a protective cage 8, the atmospheric transmissometer body 1 is fixed in the protective cage 8, and the protective cage 8 is detachably fixedly connected with the support 2. The protective cage is used to protect the atmospheric transmissometer body 1 from direct collision with other objects such as aircraft, ground, etc. In some embodiments, the protective cage 8 comprises: a cage body 81, a cover body 82 rotatably connected with the cage body 81, and a closing motor 83 driving the cover body 82 to rotate relative to the cage body 81. In some embodiments, the closing motor 83 can be arranged inside the cage body 81. In some embodiments, the shell of the closing motor 83 is rotatably connected with the cage body 81, and the driving shaft of the closing motor 83 is rotatably connected with the cover body 82. In some embodiments, the closing motor 83 is a linear motor. In some embodiments, the inside of the cage body 81 further comprises a battery, which is used to power the closing motor 83.

[0091] In some embodiments, the cover 82 is configured to be in an open state when the atmospheric transmission instrument body 1 is in the working position, so that the atmospheric transmission instrument body 1 (e.g. the atmospheric transmission instrument emitting end or the atmospheric transmission instrument receiving end) works normally. In some embodiments, the cover 82 is in a closed state when the atmospheric transmission instrument body 1 is in the flipped or tilted position, so as to protect the atmospheric transmission instrument body 1.

[0092] In some embodiments, the closing motor 83 drives the cover 82 to rotate relative to the cage 81 based on an active avoidance strategy. In some embodiments, the active avoidance strategy includes: instructing the flipping mechanism 31 to drive the support 2 to flip relative to the first base 41 to make the atmospheric transmission instrument body 1 in the tilted position, instructing the rotating mechanism 32 to drive the first base 41 to rotate relative to the second base 42 to make the atmospheric transmission instrument body 1 face the avoidance direction, and instructing the closing motor 83 to work to make the cover 82 close relative to the cage 81.

[0093] In some embodiments, the cage 81 and the cover 82 are both made of non-metal materials to avoid electromagnetic shielding. In some embodiments, one end of the protective cage 8 is flush with the side surface of the support 2 to avoid collision between the protective cage 8 and the ground in the state that the side surface of the support 2 is in close contact with the ground. In some embodiments, the side surface of the support 2 is provided with a support damping device, which can be a polyurethane damping layer wrapped on the support 2. In some embodiments, the outside of the protective cage 8 is provided with a protective cage damping device, which can be a polyurethane damping layer wrapped on the rod of the cage 81.

[0094] In some embodiments, the cage 81 is further provided with one or more bird repelling structures 84. In some embodiments, the bird repelling structure 84 can be a rod. In other embodiments, the bird repelling structure 84 can be a conical structure. In some embodiments, one or more bird repelling structures 83 are vertically arranged. In some embodiments, one or more bird repelling structures 84 can be arranged above the atmospheric transmission instrument body 1. In some embodiments, one or more bird repelling structures 84 are arranged at the lens of the atmospheric transmission instrument body 1, for preventing birds from staying at the lens of the atmospheric transmission instrument body 1, so as to avoid the excrement falling on the lens and affecting the emission or reception of parallel light beams by the atmospheric transmission instrument body 1.

[0095] The beneficial effects that the embodiments of the present specification can bring include but are not limited to: (1) the atmosphere transmission instrument body is configured to be able to be in a working position and a dumping position, and can implement avoidance when the aircraft approaches, to avoid causing damage to the aircraft; (2) whether the aircraft approaches is monitored through the optical fiber fence, which has a larger detection range and higher judgment accuracy; (3) the auxiliary sensor is used to assist in judging whether the aircraft approaches, to further improve the judgment accuracy; (4) a plurality of different auxiliary sensors are used to provide a plurality of different auxiliary judgment signals, to avoid the large error problem of a single sensor in a special environment; (5) the vibration signal and the plurality of auxiliary sensing signals are jointly judged through a dynamic weight fusion model, so as to obtain a more accurate judgment result; (6) the processor can adjust the weight of the vibration signal and one or more auxiliary judgment signals according to the environmental parameters, so as to improve the judgment accuracy; (7) the processor can adjust the weight according to the wind speed parameter, the temperature parameter, the time parameter and the weather parameter, reduce the weight of the vibration signal or the auxiliary sensing signal which is greatly affected, and increase the weight of the vibration signal or the auxiliary sensing signal which is less affected, so as to improve the judgment accuracy; (8) the active avoidance strategy is provided through the speed information of the target object, so as to adjust the overturning speed and the rotating speed of the atmosphere transmission instrument body; (9) the plurality of speed information are jointly judged, so as to improve the judgment accuracy; (10) the height information of the target object is obtained through the auxiliary sensor, and the active avoidance strategy is provided, so as to adjust the dumping angle and the avoidance direction of the atmosphere transmission instrument body; (11) the protective cage is arranged to protect the atmosphere transmission instrument body inside.

[0096] The above has described the basic concept, and it is obvious that the above detailed disclosure is only taken as an example and does not constitute a limitation on the present specification. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present specification. Such modifications, improvements and corrections are taught in the present specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present specification.

Claims

1. A reversible atmospheric transmission meter characterized in that, The application relates to an atmospheric transmission instrument, which comprises: an atmospheric transmission instrument body, a support for supporting the atmospheric transmission instrument body, a turnover mechanism for driving the support to turn over relative to a first base, a processor in signal connection with the turnover mechanism, and a fiber-optic fence arranged around the atmospheric transmission instrument. The turnover mechanism is used for adjusting the included angle between the support and the plane where the first base is located, so that the atmospheric transmission instrument body can be in a working position and one or more dumping positions. The fiber-optic fence is used for acquiring a vibration signal and sending the vibration signal to the processor. The processor provides active avoidance instructions to the turnover mechanism based on the vibration signal. The application further comprises: an auxiliary sensor for acquiring an auxiliary judgment signal and sending the auxiliary judgment signal to the processor; 2. The reversible atmosphere-transmitting meter of claim 1, wherein, The processor generates an active avoidance strategy based on the vibration signal and the auxiliary judgment signal; The auxiliary sensor comprises a millimeter wave reflection radar and / or a visual sensor, and the auxiliary judgment signal comprises one or more of millimeter wave reflection signals and light image signals. The processor generates the active avoidance strategy through joint judgment by a dynamic weight fusion model based on the vibration signal and one or more auxiliary judgment signals; The active avoidance strategy comprises instructions for the turnover mechanism to drive the support to turn over relative to the first base so that the atmospheric transmission instrument body is in the dumping position.

3. The reversible atmospheric transmission meter of claim 2, wherein, The processor adjusts the weights of the vibration signal and one or more auxiliary judgment signals according to environmental parameters to obtain a judgment result confidence, and generates the active avoidance strategy when the judgment result confidence meets a preset confidence range. The environmental parameters comprise one or more of a wind speed parameter, a temperature parameter, a time parameter and a weather parameter.

4. The reversible atmospheric transmission meter of claim 3, wherein, The processor cooperatively adjusts the weight of a vibration judgment result confidence based on the vibration signal and the weight of each auxiliary judgment result confidence based on each auxiliary judgment signal according to multiple environmental parameters to obtain the judgment result confidence. The fiber-optic fence comprises multiple fiber-optic fence defense zones, and the fiber-optic fence is further used for acquiring a trigger time difference of the vibration signal in the multiple fiber-optic fence defense zones.

5. The reversible atmospheric transmission meter of claim 4, wherein, The fiber-optic fence is further used for acquiring a frequency variation feature, a waveform duration and a propagation distance of the vibration signal.

6. The reversible atmospheric transmission meter of claim 2, wherein, The auxiliary sensor comprises a millimeter wave sensor, and the auxiliary judgment signal comprises third speed information of a target object. The processor generates the active avoidance strategy based on the first speed information, the second speed information and the third speed information. The active avoidance strategy comprises adjusting the turnover speed of the support based on the speed information of the target object. ​ ​ 7. The reversible atmospheric transmission meter of claim 6, wherein, The millimeter wave sensor continuously tracks coordinates of the target object, and calculates a possible collision time based on one or more of the first speed information, the second speed information, and the third speed information.

8. The reversible atmospheric transmission meter of claim 7, wherein, If the possible collision time is less than a preset value, the processor provides the active avoidance instruction to the turnover mechanism, so that the turnover mechanism drives the bracket and the atmospheric transmission instrument body to turn over at a preset speed.

9. The reversible atmospheric transmission meter of claim 7, wherein, If the possible collision time is less than a first preset value but greater than a second preset value, the processor provides the active avoidance instruction to the turnover mechanism, so that the turnover mechanism drives the bracket and the atmospheric transmission instrument body to turn over at a first preset speed. If the possible collision time is less than the second preset value, the processor provides the active avoidance instruction to the turnover mechanism, so that the turnover mechanism drives the bracket and the atmospheric transmission instrument body to turn over at a second preset speed, the second preset speed being greater than the first preset speed.

10. The reversible atmosphere-transmitting meter of claim 1, wherein, Further comprising: A protective cage, the atmospheric transmission instrument body is fixed in the protective cage, and the protective cage is detachably and fixedly connected with the bracket. The protective cage comprises a cage body, a cover body rotatably connected with the cage body, and a closing motor driving the cover body to rotate relative to the cage body; The cover body is configured to be in an open state when the atmospheric transmission instrument body is in the working position, and to be in a closed state when the atmospheric transmission instrument body is in the dumping position; The closing motor drives the cover body to rotate relative to the cage body based on the active avoidance strategy; One end of the protective cage is flush with a side surface of the bracket, the side surface of the bracket is provided with a bracket damping device, and the outside of the protective cage is provided with a protective cage damping device; One or more bird repelling structures are arranged on the cage body, and the bird repelling structure is a rod or a conical structure.

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