A smart city low-altitude airspace situation awareness monitoring system and device

Abstract

The application belongs to the technical field of monitoring systems, and particularly relates to a smart city low-altitude airspace situation awareness monitoring system and equipment, which comprises a radar monitoring device composed of an antenna, an antenna cover, a receiving and sending unit and a host computer; and further comprises a detection plate which is slidingly connected to the host computer and connected to a first telescopic rod in the host computer. Since the detection box and the antenna cover keep a fixed interval, the contact force of the cleaning sponge and the front surface of the antenna cover remains constant, and uneven wiping force is avoided. The surface of the antenna cover is coated with a protective coating or a signal enhancement coating. After long-time wind and sun exposure, the coating is prone to problems such as embrittlement. Uneven wiping force can easily cause coating damage, cracks or expansion of the damaged area, etc., affecting the radar monitoring accuracy, expanding the radar damage area, increasing the area of the coating to be repaired, prolonging the detection and maintenance time of the radar, and reducing the working efficiency of the radar.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of monitoring systems, and particularly relates to a smart city low-altitude airspace situation awareness monitoring system and equipment. BACKGROUND

[0002] The smart city low-altitude airspace situation awareness monitoring system is core infrastructure supporting low-altitude airspace opening and city low-altitude safety, and realizes global coverage, accurate identification, dynamic tracking and risk early warning of city low-altitude targets through multi-source sensing, data fusion, intelligent analysis and linkage application; the city low-altitude monitoring system needs to be hierarchically deployed with hardware according to the ideas of global coverage and focus on key areas, radars are responsible for network weaving, photoelectric equipment is responsible for fixed-point staring, and tracking systems are responsible for stable tracking; the radar unit is deployed on city commanding heights, is responsible for low-altitude target detection in a range of 1-10 kilometers and an elevation angle of 0-30 degrees, has a single-station coverage radius of 5-8 kilometers, and can realize global coverage through 3-5 stations networking, and data is transmitted between stations through optical fibers to avoid signal interruption.

[0003] The radar comprises components such as an antenna, an antenna cover, a receiving and sending module and a main body structure, most of the antenna covers are made of fiber reinforced composite materials such as glass fiber plus epoxy resin and carbon fiber plus phenolic resin, and the cleanliness and integrity of the antenna cover are important factors for the monitoring accuracy of the radar; in a long monitoring process, ultraviolet rays in outdoor sunlight can damage the molecular chain of the resin, cause the resin to change from a ductile state to a brittle state, the originally bendable material becomes easy to break, and when subjected to slight vibration, fine cracks can be generated on the surface, the cracks cause damage to the structure of the antenna cover, and finally cause the radar detection accuracy to decrease; and since the radar is located at a high point, in the absence of shielding, the radar is easy to be hit and adhered by impurities such as bird droppings and hail, the base material is corroded or micro concaves are formed, the concaves become electromagnetic wave scattering sources, when the radar beam sweeps through the concaves, part of the signal is scattered to a non-target direction, the signal-to-noise ratio at the receiving end decreases, the false detection rate increases, and the radar detection accuracy further decreases. SUMMARY

[0004] In order to make up for the deficiencies of the prior art and solve the above technical problems, the application provides a smart city low-altitude airspace situation awareness monitoring system and equipment.

[0005] The technical scheme adopted by the application to solve the technical problems is that the application provides a smart city low-altitude airspace situation awareness monitoring system and equipment, which comprises a radar monitoring device composed of an antenna, an antenna cover, a receiving and sending unit and a host computer; and further comprises:

[0006] The detection plate is slidably connected in the main machine, the detection plate is connected with a first telescopic rod in the main machine, a detection box is slidably connected on the top of the detection plate, and the detection box is connected with a second telescopic rod on the detection plate, one end of the detection box is closed, the other end is opened, and the detection box is close to the antenna; a detector is arranged in the detection box, a cleaning shaft is arranged in the detection box, the cleaning shaft is connected with a first motor in the detection box, a cleaning sponge is sleeved on the cleaning shaft, a cleaning suction pipe is arranged in the detection box, and the cleaning suction pipe contacts the cleaning sponge;

[0007] A telescopic sleeve is arranged in the detection box, a partition is arranged in the telescopic sleeve, a feeding unit is arranged on one side of the main machine, an output end of the feeding unit is communicated with one half of the partition in the telescopic sleeve, a suction end of the feeding unit is communicated with the other half of the partition in the telescopic sleeve, and the outer periphery of the telescopic sleeve is connected with a third telescopic rod in the detection box; the cleaning shaft is uniformly provided with spray holes, one end of the cleaning shaft is communicated with a storage tank arranged in the detection box and the output end of the feeding unit through a valve, the storage tank stores a penetrating agent, and the cleaning suction pipe is communicated with the suction end of the feeding unit.

[0008] Preferably, a rolling shaft is rotatably connected in the cleaning shaft, one side of the rolling shaft is exposed from the surface of the cleaning shaft, a cavity in the inner wall of the cleaning shaft stores a smearing agent in contact with the rolling shaft, and a sealing cover is arranged on the outer periphery surface of the cleaning shaft; a fourth telescopic rod is arranged in the detection box, a hook is arranged at the telescopic end of the fourth telescopic rod and contacts the sealing cover, and a position sensor is arranged on the part of the cleaning shaft close to the rolling shaft and the inner wall of the detection box in a matched mode;

[0009] One end of the telescopic sleeve is provided with a suction disc, the suction disc is annular, the suction disc is communicated with the suction end of the feeding unit through an air pipe, one end of the suction disc is provided with a suction ring, the suction ring is provided with a suction groove, the telescopic end of the third telescopic rod is provided with a moving ring, a clamping block is slidably connected to the moving ring through a spring, the clamping block is clamped in the suction groove, and the third telescopic rod is hingedly connected with the detection box through a torsion spring.

[0010] Preferably, the opening end of the telescopic sleeve is square tubular, and the partition is hingedly connected with a cleaning piece on one end close to the suction disc through a torsion spring.

[0011] Preferably, one end of the cleaning piece is hingedly connected with a scraping piece through a torsion spring, and the scraping pieces are symmetrically distributed with the partition as a reference.

[0012] Preferably, an oil injection pipe is arranged in the telescopic sleeve, the opening end of the oil injection pipe is located at one end of the cleaning piece, and the openings of the oil injection pipe are located between adjacent scraping pieces.

[0013] Preferably, a detection pipe is arranged on the antenna cover, a valve is arranged in the detection pipe and is communicated with the inside of the antenna cover, and one end of the detection pipe is matched with the telescopic sleeve.

[0014] Preferably, the sealing cover surrounds the cavity in the inner wall of the cleaning shaft, and a heater is arranged in the sealing cover, a power connector is arranged on the hook, and a power supply interface is arranged on the sealing cover, and the power connector is matched with the power supply interface.

[0015] Preferably, a fixed frame is hingedly arranged in the sealing cover through a torsion spring, and a filter screen is arranged in the fixed frame, and the hinged part of the fixed frame contacts the surface of the cleaning shaft.

[0016] Preferably, a detection rod is arranged on one side of the detection plate, and a fifth telescopic rod is connected between the detection rod and the detection plate; the cleaning suction pipe is located at the bottom of the cleaning shaft, and an extrusion shaft is arranged on one side of the cleaning suction pipe, and the extrusion shaft contacts the cleaning sponge.

[0017] A smart city low-altitude airspace situation awareness monitoring system, the monitoring system comprises a radar monitoring device, an optoelectronic tracking device and a warning tracking system, the radar monitoring device discovers a low-altitude target through continuous scanning, and completes preliminary detection and parameter extraction; after the monitoring system receives a radar instruction, the optoelectronic tracking device is dispatched to accurately identify the target; after the target attribute is confirmed, the system enters a stable tracking stage, and the radar and the optoelectronic device work in cooperation.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The smart city low-altitude airspace situation awareness monitoring system and device, because the detection box and the antenna cover front keep a fixed distance, the contact force of the cleaning sponge and the antenna cover front is kept constant, and uneven wiping force is avoided, and the surface of the antenna cover is coated with a protective coating or a signal enhancement coating, and the coating is prone to embrittlement after long-time wind and sun exposure, and uneven wiping force is prone to cause coating damage, crack or expand the damage area, etc., which affects the radar monitoring accuracy, expands the radar damage area, increases the coating repair area, prolongs the radar detection and maintenance time, and reduces the radar working efficiency.

[0020] 2. The smart city low-altitude airspace situation awareness monitoring system and device, personnel start the third telescopic rod to drive the telescopic sleeve to elongate and move, the open end of the telescopic sleeve contacts the front of the antenna cover and realizes sealing effect through the configured sealing ring, and the upper layer and the lower layer of the telescopic sleeve are separated into an output pipeline and a suction pipeline, the output end of the supply unit transports the cleaning agent to the output pipeline in the telescopic sleeve, and the suction end of the supply unit suctions the cleaning agent from the suction pipeline in the telescopic sleeve, so that the cleaning agent directly reaches the open end from the upper layer of the telescopic sleeve, and concentrated water flow is formed at the opening, which can accurately impact the dirt adhesion area, for example, for bird droppings and other strong adhesion pollutants, the concentrated water flow can directly destroy the adhesion of the bird droppings and the surface of the antenna cover through mechanical scouring force. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described in conjunction with the accompanying drawings.

[0022] Figure 1 is a perspective view of the application;

[0023] Figure 2 is a working schematic view of the detection rod after cleaning;

[0024] Figure 3 is a partial sectional view of the application in the front direction;

[0025] Figure 4 is Figure 3 a partial enlarged view of the cleaning shaft;

[0026] Figure 5 is Figure 4 a schematic view of the cleaning shaft in rotation;

[0027] Figure 6 is Figure 4 a schematic view of the hook lifting the sealing cover away from the cleaning shaft;

[0028] Figure 7 is Figure 4 a schematic view of the hook connecting with the sealing cover;

[0029] Figure 8 is Figure 3 a partial enlarged view of the telescopic sleeve;

[0030] Figure 9 is Figure 8 a sectional view of the telescopic sleeve in the telescopic state;

[0031] In the drawings: antenna 1, antenna cover 11, main machine 12, detection plate 13, No. 1 telescopic rod 14, detection box 15, No. 2 telescopic rod 16, detector 17, cleaning shaft 18, No. 1 motor 19, cleaning sponge 2, cleaning suction pipe 21, telescopic sleeve 22, partition 23, supply machine set 24, No. 3 telescopic rod 25, ejection hole 26, storage box 27, rolling shaft 28, sealing cover 29, No. 4 telescopic rod 3, hook 31, suction disc 32, suction ring 33, suction groove 34, moving ring 35, clamping block 36, cleaning sheet 37, scraping sheet 38, oil injection pipe 39, detection pipe 4, heater 41, fixed frame 42, filter screen 43, detection rod 44, No. 5 telescopic rod 45, extrusion shaft 46. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.

[0033] Embodiment one:

[0034] In order to effectively solve the above problems, as shown in the drawings Figures 1-9 The smart city low-altitude airspace situation awareness monitoring device comprises a radar monitoring device composed of an antenna 1, an antenna cover 11, a receiving and transmitting unit and a host computer 12. The antenna 1 is used for radar signal collection. The antenna cover 11 is used for protection and auxiliary antenna 1 signal collection and diffusion. The receiving and transmitting unit is used for radar signal receiving and transmitting. The host computer 12 is used for daily use of the radar. The smart city low-altitude airspace situation awareness monitoring device further comprises:

[0035] A detection plate 13 is slidingly connected in the host computer 12. The detection plate 13 is connected with a first telescopic rod 14 in the host computer 12. A detection box 15 is slidingly connected to the top of the detection plate 13. The detection box 15 is connected with a second telescopic rod 16 on the detection plate 13. One end of the detection box 15 is closed and the other end is open and close to the antenna 1. A detector 17 is arranged in the detection box 15. A cleaning shaft 18 is arranged in the detection box 15. The cleaning shaft 18 is connected with a first motor 19 in the detection box 15. A cleaning sponge 2 is sleeved on the cleaning shaft 18. A cleaning suction pipe 21 is arranged in the detection box 15. The cleaning suction pipe 21 contacts the cleaning sponge 2.

[0036] A telescopic sleeve 22 is arranged in the detection box 15. A partition 23 is arranged in the telescopic sleeve 22. A supply unit 24 is arranged on one side of the host computer 12. An output end of the supply unit 24 is communicated with one half of the partition 23 in the telescopic sleeve 22. A suction end of the supply unit 24 is communicated with the other half of the partition 23 in the telescopic sleeve 22. The outer periphery of the telescopic sleeve 22 is connected with a third telescopic rod 25 in the detection box 15. Uniformly arranged on the cleaning shaft 18 are a plurality of ejection holes 26. One end of the cleaning shaft 18 is communicated with a storage tank 27 arranged in the detection box 15 and the output end of the supply unit 24 through a valve. A penetrating agent is stored in the storage tank 27. The cleaning suction pipe 21 is communicated with the suction end of the supply unit 24.

[0037] The detector 17 is a conventional visual detector 17 used for the radome 11, and this kind of detector 17 does not affect the radar, the detector 17 detects the completeness and cleanliness of the surface of the radome 11 by vision, the cleaning sponge 2 is a conventional tool used for cleaning the radome 11, the opening end of the telescopic sleeve 22 is square, and the remaining inner part is circular, the telescopic sleeve 22 can be selected from a kind of flexible type such as bellows; The supply unit 24 is a pump device combined by a conventional output pump, a suction pump and a tank body storing cleaning agent, commonly known as a pump system, which usually includes one or more suction pumps for suction and one or more output pumps for delivery; The storage tank 27 is used for storing and outputting penetrant to the cleaning shaft 18, the penetrant is a conventional solvent used for penetration detection, and the penetration detection of the radome 11 is completed in cooperation with the detector 17; The cleaning shaft 18 is communicated with the storage tank 27 and the output end of the supply unit 24 through valves respectively, when cleaning is needed, the supply unit 24 delivers cleaning agent to the cleaning shaft 18, and when penetration detection is needed, the storage tank 27 delivers penetrant to the cleaning shaft 18; The first telescopic rod 14, the second telescopic rod 16, the third telescopic rod 25, the fourth telescopic rod 3 and the fifth telescopic rod 45 are conventional telescopic devices.

[0038] Specific working process: dust, bird droppings, rainwater and hail and other natural factors will directly act on the radome 11, which indirectly affects the detection accuracy, stability and response speed of the radar to the city low-altitude target by damaging the physical integrity, reducing the wave transmission performance and other ways; Therefore, personnel take the periodic detection method to reduce the influence of these natural factors on the radome 11, and improve the detection effect of the radar; When detecting, the first telescopic rod 14 drives the detection plate 13 to rise from the main machine 12, the detection plate 13 drives the detection box 15 to rise, and then the second telescopic rod 16 drives the detection box 15 to move horizontally close to the front of the radome 11, that is, the working surface of the radome 11, and rises along the front of the radome 11, and in the rising process, through the cooperation of the first telescopic rod 14 and the second telescopic rod 16, the detector 17 and the front of the radome 11 keep a fixed distance, avoid the distance between the detector 17 and the inclined radome 11 changes, and cause the shooting distance changes, which causes the surface detection accuracy of the radome 11 to be affected;

[0039] When the detector 17 detects that the dust area of the front of the radome 11 is high, the first motor 19 is started to drive the cleaning shaft 18 to rotate. During the process of the cleaning sponge 2 rotating to sweep the dust downward, the detection box 15 and the front of the radome 11 maintain a fixed distance, so that the contact force of the cleaning sponge 2 with the front of the radome 11 remains constant, avoiding uneven wiping force. The surface of the radome 11 is coated with a protective coating or a signal enhancement coating. After a long time of wind and sun, the coating may become brittle and other problems. Uneven wiping force may cause coating damage, cracks, or expansion of the damage area, affecting radar monitoring accuracy, expanding the damaged area of the radar, increasing the area of the maintenance coating, and prolonging the detection and maintenance time of the radar, reducing the working efficiency of the radar.

[0040] When the detector 17 detects dirt and bird droppings, direct cleaning and wiping may increase the contamination area of the dirt, increase the corrosion and pollution area of the coating on the radome 11, reduce cleaning efficiency, and also consume more cleaning agents and repeated wiping operations, causing the coating to be damaged. Therefore, the third telescopic rod 25 is started to drive the telescopic sleeve 22 to extend and move. The open end of the telescopic sleeve 22 contacts the front of the radome 11 and achieves a sealing effect through the configured sealing ring. The partition 23 divides the upper and lower layers of the telescopic sleeve 22 into an output pipeline and a suction pipeline. The output end of the supply unit 24 delivers cleaning agent to the output pipeline in the telescopic sleeve 22, and the suction end of the supply unit 24 sucks the cleaning agent from the suction pipeline in the telescopic sleeve 22, so that the cleaning agent reaches the open end from the upper layer of the telescopic sleeve 22, forming a concentrated water flow at the opening, which can accurately impact the dirt attachment area. For example, for bird droppings and other strong adhesion pollutants, the concentrated water flow can directly damage the adhesion of bird droppings to the surface of the radome 11 through mechanical scouring force.

[0041] In addition, after the cleaning agent washes the dirt, it is immediately sucked away through the lower suction pipeline instead of naturally dripping, which can avoid the reaccumulation of the washed dirt on the surface of the radome 11 or the spread of the dirt to other areas with the water flow. For example, if the sand particles that fall off during the cleaning process are not sucked away in time, they may scratch the coating of the radome 11 under the action of the water flow. The closed-loop design can reduce such risks, thereby reducing the damage caused by cleaning.

[0042] Moreover, by the telescopic rod driving the sleeve to extend and adhere to the front surface of the radome 11, and cooperating with the sealing ring to achieve local sealing, it can ensure that the cleaning agent only flows in the target area. Even if there are slight concave and convex on the surface of the radome 11, the local water flow pressure after sealing can also make the cleaning agent penetrate into the recess to flush away the dust and bird droppings residues hidden therein, thereby improving the cleaning effect. At the same time, the detection box 15 can drive the sleeve to adjust the position and perform point cleaning on the local pollution area, without the need to flush the entire radome 11, thereby reducing unnecessary water consumption, avoiding the aging of the coating caused by the large-area contact of the cleaning agent with the radome 11, and also accelerating the drying after flushing.

[0043] In addition, compared with the high-pressure water gun, the cleaning is achieved by the circulating flow of the cleaning agent, and the impact force only acts on the dirt, without causing physical damage to the antireflection film and protective coating on the surface of the radome 11, thereby improving the cleaning effect and avoiding cracks in the coating, so as to maintain the accuracy of the radar. After point cleaning, the supply unit 24 supplies air into the telescopic sleeve 22, the cleaning agent in the telescopic sleeve 22 is replaced by air, and the airflow blows the cleaned part to accelerate the drying speed under the condition of small-area cleaning, reduce the cleaning time, and improve the continuous working efficiency of the radar.

[0044] When encountering hail weather or regularly detecting the flatness of the radome 11, the supply unit 24 delivers the cleaning agent into the cleaning shaft 18, the cleaning agent flows into the cleaning sponge 2 through the built-in spray hole 26 in the cleaning shaft 18, and the front surface of the radome 11 is cleaned. After cleaning, the supply unit 24 supplies air to the cleaning shaft 18 to blow away the cleaning agent in the cleaning sponge 2 and dry the radome 11, and then the storage tank 27 delivers the penetrating agent to the cleaning sponge 2 through the spray hole 26, and the cleaning sponge 2 wipes the penetrating agent on the surface of the radome 11 with a stable wiping force. Through the action of the penetrating agent on the surface of the radome 11, cooperating with the detection of the detector 17, the penetration detection work is completed, so as to quickly detect the cracks and other defects on the surface of the radome 11, facilitate personnel to carry out subsequent maintenance and processing, cooperate with the above-mentioned cleaning and protection, maintain the effect of the coating, timely detect the cracks in the coating and make treatment, and avoid affecting the accuracy of urban low-altitude monitoring. After the recess detection, the spray hole 26 sprays the cleaning agent into the cleaning sponge 2, and the cleaning suction pipe 21 sucks the cleaning agent into the cleaning sponge 2, so as to clean the cleaning sponge 2 and reduce the influence of the smearing agent on the subsequent cleaning.

[0045] Example Two:

[0046] On the basis of embodiment one, the cleaning shaft 18 is rotatably connected with a rolling shaft 28, and one side of the rolling shaft 28 is exposed outside the surface of the cleaning shaft 18, and a cavity in the inner wall of the cleaning shaft 18 stores a smearing agent in contact with the rolling shaft 28; the outer peripheral surface of the cleaning shaft 18 is provided with a sealing cover 29, the detection box 15 is provided with a fourth telescopic rod 3, the telescopic end of the fourth telescopic rod 3 is provided with a hook 31 in contact with the sealing cover 29, and the part of the cleaning shaft 18 close to the rolling shaft 28 and the inner wall of the detection box 15 are provided with matched position sensors; the position sensors are distributed on the rolling shaft 28 and the inner wall of the detection box 15, when the detection recess is detected, the position sensors on the rolling shaft 28 and the inner wall of the detection box 15 are aligned, the position sensor sends a position signal to the host 12, which represents that the rolling shaft 28 is located at the position close to the antenna cover 11 of the cleaning shaft 18, that is, the rolling shaft 28 is in contact, and the cleaning shaft 18 and the cleaning sponge 2 do not contact the surface of the antenna cover 11;

[0047] One end of the telescopic sleeve 22 is provided with a suction disc 32, and the suction disc 32 is annular, and the suction disc 32 is in communication with the suction end of the supply unit 24 through an air pipe; one end of the suction disc 32 is provided with a suction ring 33, and the suction ring 33 is provided with a suction groove 34, the telescopic end of the third telescopic rod 25 is provided with a moving ring 35, the moving ring 35 is slidingly connected with a clamping block 36 through a spring, the clamping block 36 is clamped with the suction groove 34, and the third telescopic rod 25 is hinged with the detection box 15 through a torsion spring;

[0048] The opening end of the telescopic sleeve 22 is square tubular, and the partition 23 is hingedly connected with a cleaning sheet 37 close to the suction disc 32 through a torsion spring;

[0049] One end of the cleaning sheet 37 is hingedly connected with a scraping sheet 38 through a torsion spring, and the scraping sheet 38 is symmetrically distributed with the partition 23 as a reference;

[0050] The telescopic sleeve 22 is provided with an oil injection pipe 39, the opening end of the oil injection pipe 39 is located at one end of the cleaning sheet 37, and the opening of the oil injection pipe 39 is located between adjacent scraping sheets 38;

[0051] Specific workflow: when hail, sandstorm, typhoon and other factors, the surface of the antenna cover 11 is collided, which may cause pits on the surface of the antenna cover 11, or even cause cracks. Structural damage may cause non-directional leakage of electromagnetic waves, deviation of radar beam pointing, and influence on the accuracy of urban low-altitude monitoring. Therefore, when the surface of the antenna cover 11 needs to be detected, the fourth telescopic rod 3 drives the hook 31 to move close to the cleaning shaft 18, the cleaning shaft 18 drives the sealing cover 29 to rotate and contact the hook 31, after the hook 31 contacts the sealing cover 29, the fourth telescopic rod 3 pulls the sealing cover 29 out of the cleaning shaft 18; then, the cleaning shaft 18 rotates to the position where the two position sensors trigger, at this time, the rolling shaft 28 is located close to the antenna cover 11, the detection box 15 drives the rolling shaft 28 to move close to the front surface of the antenna cover 11 through the cleaning shaft 18; then, the detection box 15 drives the rolling shaft 28 to roll along the surface of the antenna cover 11, the rolling shaft 28 rotates to contact the stored smearing agent in the cleaning shaft 18 in the rolling process, the smearing agent is a conventional solvent applied on the surface of the antenna cover 11 for color development, and the smearing agent will not damage the coating of the antenna cover 11. Since the surface of the rolling shaft 28 is a plane, when the rolling shaft 28 rolls over the pits of the antenna cover 11, the rolling shaft 28 cannot contact the pits, so that the pits of the antenna cover 11 are not brushed with the smearing agent, and the number of pits is detected by the detector 17, so that the number of pits is detected quickly and conveniently, the personnel can process the pits conveniently, the detection efficiency is improved, the time during radar detection is shortened, and the radar monitoring efficiency is improved; after the pit detection is completed, the sealing cover 29 is affected by the spring arranged between the detection box 15 and the sealing cover 29, and the hook 31 is lowered and no longer pressed, so that the sealing cover 29 is lowered and reinserted into the cleaning shaft 18, and the rolling shaft 28 and the smearing agent are sealed;

[0052] In addition, during the pit detection, the above-mentioned cleaning work is matched, the cleanliness of the antenna cover 11 is maintained, the pit detection work is carried out, the detector 17 detects the smearing part while the rolling shaft 28 smears, the pit detection is completed when the rolling shaft 28 smears once, the detection efficiency is improved, the smearing agent can be immediately cleaned by the cleaning sponge 2, the smearing time is reduced, the influence on the protective layer on the surface of the antenna cover 11 is avoided, and the accuracy of radar monitoring is maintained;

[0053] Furthermore, to ensure that the rolling shaft 28 can roll along the front surface of the antenna cover 11, the personnel can also install a rack on one side of the antenna cover 11, and install a gear on one end of the rolling shaft 28 extending out of one end of the cleaning shaft 18. Through the cooperation of the gear and the rack, it is ensured that the rolling shaft 28 can roll along the front surface of the antenna cover 11, the smearing agent is uniformly smeared on the surface of the antenna cover 11, and the accuracy of pit detection is improved

[0054] When the open end of the telescopic sleeve 22 contacts the dirt on the surface of the radome 11, the suction disc 32 is also attached to the surface of the radome 11, and the suction end of the supply unit 24 sucks air through the air pipe between the suction disc 32 and the radome 11, forming a vacuum adsorption effect, which strengthens the sealing between the telescopic sleeve 22 and the surface of the radome 11, improves the sealing effect without increasing the extrusion pressure, avoids increasing the extrusion pressure for sealing, and prevents the radome 11 from being extruded and deformed; and the suction disc 32 further improves the sealing effect under the action of the sealing ring at the end of the telescopic sleeve 22.

[0055] Moreover, after the suction disc 32 is fixed on the radome 11 by adsorption, the third telescopic rod 25 drives the moving ring 35 to retract, and the clamping block 36 is pressed on the moving ring 35 and moves away from the adsorption groove 34; when the moving ring 35 moves away from the adsorption ring 33, the clamping block 36 is reset by the spring; at this time, since the third telescopic rod 25 is hinged to the detection box 15 by the torsional spring, the detection box 15 can move away from the suction disc 32 here to carry out other work, for example, if multiple telescopic sleeves 22 are configured in the detection box 15, and multiple places of dirt are detected, the first telescopic sleeve 22 is fixed, and the remaining telescopic sleeves 22 are lifted by the detection box 15 to approach other dirt; since the first telescopic sleeve 22 has the telescopic function, the first telescopic sleeve 22 is elongated and inclined with the upward movement of the detection box 15; the third telescopic rod 25 on the first telescopic sleeve 22 changes from horizontal to inclined due to the hinge, and the detection box 15 covers the second place of dirt with the second telescopic sleeve 22, so that the detection box 15 can handle multiple places of dirt at the same time, shorten the cleaning time, and improve the radar monitoring efficiency;

[0056] Further, after the telescopic sleeve 22 is fixed, its interior does not start to work, and the cleaning piece 37 is kept horizontal under the influence of the torsional spring and blocks the middle part of the cleaning sleeve; when the cleaning agent flows from the upper layer to the lower layer of the telescopic sleeve 22, the cleaning agent pushes away the intercepted cleaning piece 37, so that the cleaning piece 37 swings downward while pushing the dirt, and the cleaning piece 37 cooperates with the washing of the cleaning agent to accelerate the washing efficiency of the dirt; and when the cleaning piece 37 swings downward, the scraper 38 swings downward, the scraper 38 below the cleaning piece 37 shovels the dirt, and the scraper 38 above cooperates with the action of scraping the dirt to further accelerate the dirt removal efficiency, thereby improving the cleaning efficiency of the radar;

[0057] Moreover, the personnel can also set the air supply unit to continuously deliver cleaning agent into the telescopic sleeve 22, and change it into a pulse cleaning mode of delivering a pulse of cleaning agent after a pause; dirt on the surface of the radome 11 often forms a close bond with the surface, such as uric acid crystals in bird droppings that can penetrate into the coating gaps, and dust layers that are solidified into a hard shell due to static electricity or moisture, and the continuously delivered cleaning agent is prone to cause only the surface of the dirt to be washed away due to the impact force, and it is difficult to completely peel off; and the pulse delivery changes the impact force through intermittent impact, which can physically destroy the bonding structure of the dirt, the impact loosening effect of the first pulse of cleaning agent, the penetration and dissolution effect of the cleaning agent on the dirt during the pause, and the secondary peeling effect of the second pulse of cleaning agent cooperate with each other to completely peel off from the surface of the radome 11, compared with continuous delivery, this impact, penetration, and secondary impact step-by-step process improves the removal of stubborn dirt, and avoids waste of cleaning agent due to long-term continuous washing;

[0058] In addition, the antireflection film and protective coating on the surface of the radome 11 are sensitive to long-term soaking or continuous contact with high-concentration cleaning agent, and when the cleaning agent is continuously delivered, the water flow may form a water film that is retained in the non-dirt area, and if the cleaning agent contains a small amount of active ingredients, long-term contact may cause the coating to lose its luster or hydrophobicity to decrease, and the above-mentioned delivery mode can reduce such ineffective contact through intermittent pauses and suction cooperation;

[0059] The cleaning agent repeatedly washes away the cleaning piece 37, so that the cleaning piece 37 repeatedly swings the wiper 38 to clean the dirt, improving the cleaning efficiency; and by providing the oil injection pipe 39, the oil injection pipe 39 can be in communication with the air supply unit, the opening of the oil injection pipe 39 is provided with a nozzle, and during the interval period of the flow and cleaning of the cleaning agent, there is no cleaning agent in the telescopic pipe for a short period of time, the oil injection pipe 39 sprays a small amount of lubricant to the scraped part of the radome 11, reduces the friction between the wiper 38 and the surface of the radome 11, avoids excessive friction from causing damage to the coating of the radome 11, and thus maintains the monitoring accuracy of the radar.

[0060] Embodiment Three:

[0061] On the basis of Embodiment Two, the radome 11 is provided with a detection pipe 4, the detection pipe 4 is provided with a valve and is in communication with the inside of the radome 11, and one end of the detection pipe 4 is matched with the telescopic sleeve 22;

[0062] The sealing cover 29 encloses the cavity in the inner wall of the cleaning shaft 18, and the sealing cover 29 is provided with a heater 41, the hook 31 is provided with a power connection, the sealing cover 29 is provided with a power supply interface, and the power connection is matched with the power supply interface;

[0063] The sealing cover 29 is hinged to a fixed frame 42 through a torsion spring, the fixed frame 42 is provided with a filter screen 43, and the hinged part of the fixed frame 42 contacts the surface of the cleaning shaft 18;

[0064] Specific workflow: the inside of the radome 11 is usually high in temperature due to the heat generated by the radar equipment, and the inside air may contain some water vapor due to equipment heat dissipation, sealed environment, etc.; when cleaning, the cleaning agent contacts the outer surface of the radome 11 and will quickly reduce the temperature of the radome 11 wall through heat conduction, at this time, the temperature of the inner wall of the radome 11 will also decrease synchronously with the heat conduction of the cover body, if the inner wall temperature drops below the dew point temperature of the internal air, the water vapor in the internal air will condense into water droplets on the cold inner wall surface, and the electrical appliances inside the radome 11 may be affected by the dripping of water droplets, etc., affecting the normal work of the radar; therefore, one of the telescopic sleeves 22 is fixed at the port of the detection pipe 4, the telescopic sleeve 22 sucks and transports clean dry air into the radome 11 through the detection pipe 4, reduces the condensation of water droplets on the inner wall of the radome 11, for example, pre-replacement before cleaning, reducing the initial humidity with dry air to make the inside and outside temperature the same; continuously replacing during cleaning to avoid water vapor accumulation and maintain low humidity; delayed replacement after cleaning to accelerate the warming of the cover body, discharge residual water vapor, and timely discharge of the possible trace of water vapor remaining in the cleaning process to avoid the influence of condensed water droplets on the radar equipment or the influence of the water droplets attached to the inner wall of the radome 11 on the wave-transparent performance; personnel can also install a temperature sensor in the telescopic sleeve 22 to detect the temperature of the cleaning agent and the temperature of the air replaced out of the radome 11;

[0065] By setting the heater 41, when the hook 31 contacts the sealing cover 29, the power supply connector on the hook 31 is connected with the power supply interface on the sealing cover 29, the main body supplies power to the heater 41 through the connection of the power supply connector, and the heater 41 indirectly heats the smearing agent through the sealing cover 29, thereby improving the temperature of the smearing agent and the liquidity of the smearing agent, so that the smearing agent can be fully contacted with the rolling shaft 28, the smearing agent can be evenly smeared on the surface of the radome 11, and the detection accuracy of the dimples is improved.

[0066] In addition, when the dimple detection is not carried out, the smearing agent is subjected to the centrifugal force generated by the rotation of the cleaning shaft 18, so that the smearing agent flows from the cleaning shaft 18 to the sealing cover 29, and the smearing agent flows into the fixed frame 42; before the dimple detection is needed, the sealing cover 29 is vertically upward when the cleaning shaft 18 is stationary, and the smearing agent reflows into the cleaning shaft 18 and passes through the filter screen 43, so that the filter screen 43 intercepts and filters the impurities in the smearing agent, thereby improving the cleanliness of the smearing agent, improving the liquidity of the smearing agent, further making the smearing agent evenly smeared on the surface of the radome 11, and improving the detection accuracy of the dimples.

[0067] Embodiment Four

[0068] On the basis of embodiment three, one side of the detection plate 13 is provided with a detection rod 44, and a fifth telescopic rod 45 is connected between the detection rod 44 and the detection plate 13; the cleaning suction pipe 21 is located at the bottom of the cleaning shaft 18, one side of the cleaning suction pipe 21 is provided with a pressing shaft 46, and the pressing shaft 46 contacts the cleaning sponge 2.

[0069] Specific workflow: after radar cleaning, start the five telescopic rods 45 to drive the detection rod 44 to move to the normal self-checking position of the radar, start the radar detection detection rod 44, and assist personnel to calibrate the radar according to the detection result, because the pollution of the radome 11 will cause hidden performance deviation, such as beam pointing deviation and signal gain drop, even after cleaning, if not synchronized calibration, it may remain the parameter error caused by historical pollution; therefore, after cleaning, the detection rod 44 is used to expand the preliminary calibration, and the radar after cleaning is reset to the working state through calibration, and the low-altitude monitoring precision is improved.

[0070] By setting the extrusion shaft 46, after the cleaning sponge 2 is detected or cleaned, the cleaning sponge 2 rotates through the extrusion shaft 46, the extrusion shaft 46 rolls and extrudes the cleaning sponge 2, the internal moisture of the cleaning sponge 2 is extruded by the extrusion shaft 46 at the same time, and is sucked away by the cleaned suction pipe 21, so that the drying and cleaning of the cleaning sponge 2 are accelerated, the cleaning sponge 2 can be quickly switched between cleaning and other cleaning work, without mutual pollution, the self-cleaning ability of the component is improved, the cleaning efficiency is improved, and the radar monitoring efficiency is improved.

[0071] Example five:

[0072] A low-altitude airspace situation awareness monitoring system for a smart city, the monitoring system comprising a radar monitoring device, an optoelectronic tracking device and a warning tracking system, the radar monitoring device discovers low-altitude targets by continuous scanning, and completes preliminary detection and parameter extraction; after receiving the radar instruction, the monitoring system dispatches the optoelectronic tracking device to accurately identify the target; after confirming the target attribute, the system enters a stable tracking stage, and the radar and the optoelectronic device work in coordination.

[0073] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A smart city low-altitude airspace situation awareness monitoring device, comprising a radar monitoring device composed of an antenna (1), an antenna cover (11), a transceiver unit and a host computer (12); characterized in that, Also include: Detection board (13), the detection board (13) is slidingly connected in the main machine (12), the detection board (13) is connected with the first telescopic rod (14) in the main machine (12), the top of detection board (13) is slidingly connected with detection box (15), and the detection box (15) is connected with the second telescopic rod (16) on the detection board (13), one end of the detection box (15) is closed and the other end is open, close to the antenna (1); The detector (17) is arranged in the detection box (15), the cleaning shaft (18) is arranged in the detection box (15), the cleaning shaft (18) is connected with the first motor (19) in the detection box (15), the cleaning sponge (2) is sleeved on the cleaning shaft (18), the cleaning suction pipe (21) is arranged in the detection box (15), and the cleaning suction pipe (21) contacts the cleaning sponge (2); The telescopic sleeve (22) is arranged in the detection box (15), the telescopic sleeve (22) is provided with a partition (23), one side of the main machine (12) is provided with a supply unit (24), the supply unit (24) is communicated with the telescopic sleeve (22), and the outer periphery of the telescopic sleeve (22) is connected with the third telescopic rod (25) in the detection box (15); The cleaning shaft (18) is uniformly provided with a spray hole (26), one end of the cleaning shaft (18) is communicated with the storage tank (27) arranged in the detection box (15) and the output end of the supply unit (24) through a valve, the storage tank (27) stores a penetrating agent, and the cleaning suction pipe (21) is communicated with the suction end of the supply unit (24). 2.The smart city low-altitude airspace situation awareness monitoring device according to claim 1, wherein: The cleaning shaft (18) is rotatably connected with a rolling shaft (28), and the outer periphery of one side of the rolling shaft (28) is exposed from the surface of the cleaning shaft (18), the cavity in the inner wall of the cleaning shaft (18) stores a smearing agent in contact with the rolling shaft (28); The outer periphery surface of the cleaning shaft (18) is provided with a sealing cover (29), the detection box (15) is provided with a fourth telescopic rod (3), the telescopic end of the fourth telescopic rod (3) is provided with a hook (31) contacting the sealing cover (29), and the part of the cleaning shaft (18) close to the rolling shaft (28) and the inner wall of the detection box (15) are provided with matched position sensors; One end of the telescopic sleeve (22) is provided with a suction disc (32), and the suction disc (32) is annular, the suction disc (32) is communicated with the suction end of the supply unit (24) through a trachea; One end of the suction disc (32) is provided with a suction ring (33), and the suction ring (33) is provided with a suction groove (34), the telescopic end of the third telescopic rod (25) is provided with a moving ring (35), the moving ring (35) is slidingly connected with a clamping block (36) through a spring, the clamping block (36) is clamped with the suction groove (34), and the third telescopic rod (25) is hinged with the detection box (15) through a torsion spring. 3.The smart city low-altitude airspace situation awareness monitoring device according to claim 2, characterized in that: The open end of the telescopic sleeve (22) is square tubular, and the end close to the suction disc (32) of the partition (23) is hingedly connected with a cleaning sheet (37) through a torsion spring. 4.The smart city low-altitude airspace situation awareness monitoring device of claim 3, wherein: One end of the cleaning sheet (37) is hingedly connected with a scraping sheet (38), and the scraping sheet (38) is symmetrically distributed with the partition (23) as a reference. 5.The smart city low-altitude airspace situation awareness monitoring device of claim 4, wherein: The telescopic sleeve (22) is provided with an oil injection pipe (39), and the open end of the oil injection pipe (39) is located at one end of the cleaning sheet (37), and the opening of the oil injection pipe (39) is located between adjacent scraping sheets (38). 6.The smart city low-altitude airspace situation awareness monitoring device of claim 5, wherein: The detection pipe (4) is installed on the radome (11), and the detection pipe (4) is provided with a valve and is in communication with the inside of the radome (11), and one end of the detection pipe (4) is matched with the telescopic sleeve (22). 7.The smart city low-altitude airspace situation awareness monitoring device of claim 2, wherein: The sealing cover (29) surrounds the cavity in the inner wall of the cleaning shaft (18), and the sealing cover (29) is provided with a heater (41), the hook (31) is provided with a power connection, the sealing cover (29) is provided with a power supply interface, and the power connection is matched with the power supply interface. 8.The smart city low-altitude airspace situation awareness monitoring device of claim 7, wherein: The sealing cover (29) is hinged with a fixed frame (42) through a torsion spring, and the fixed frame (42) is provided with a filter screen (43), and the hinged part of the fixed frame (42) contacts the surface of the cleaning shaft (18). 9.The smart city low-altitude airspace situation awareness monitoring device of claim 1, wherein: One side of the detection plate (13) is provided with a detection rod (44), and the detection rod (44) and the detection plate (13) are connected with a No. 5 telescopic rod (45); the cleaning suction pipe (21) is located at the bottom of the cleaning shaft (18), and one side of the cleaning suction pipe (21) is provided with a squeezing shaft (46) which contacts the cleaning sponge (2).

10. A smart city low-altitude airspace situation awareness surveillance system, the surveillance system being adapted for use with the surveillance device of any one of claims 1-9, characterized in that: The monitoring system comprises a radar monitoring device, an optoelectronic tracking device and a pre-warning tracking system, the radar monitoring device discovers low-altitude targets by continuous scanning, and completes preliminary detection and parameter extraction; after receiving the radar instruction, the monitoring system dispatches the optoelectronic tracking device to accurately identify the target; After confirming the target attribute, the system enters the stable tracking stage, and the radar and the optoelectronic device work in cooperation.

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