Smart city low-altitude airspace situation awareness monitoring system and device

Abstract

The invention relates to the technical field of monitoring systems, in particular to a smart city low-altitude airspace situation awareness monitoring system and equipment, and the system comprises radar monitoring equipment which is composed of an antenna, an antenna housing, a receiving and transmitting unit and a host; the device further comprises a detection plate, and the detection plate is connected into the host in a sliding mode and connected with a first telescopic rod in the host. The detection box and the front surface of the radome are lifted at a fixed interval, so that the contact strength between the cleaning sponge and the front surface of the radome is kept constant, and the problems that the wiping strength is not uniform, the surface of the radome is coated with a protective coating or a signal enhancement coating, and the coating is easy to embrittle after being exposed to the weather for a long time are solved; the conditions of coating damage, crack generation or damage area enlargement and the like are easily caused by non-uniform wiping force, the radar monitoring accuracy is influenced, the radar damage area is enlarged, the coating maintenance area is increased, the radar detection and maintenance time is prolonged, and the radar working efficiency is reduced.

Description

Technical Field

[0001] This invention relates to the field of surveillance system technology, specifically to a smart city low-altitude airspace situational awareness surveillance system and equipment. Background Technology

[0002] The smart city low-altitude airspace situational awareness and surveillance system is a core infrastructure supporting the opening of low-altitude airspace and urban low-altitude safety. Through multi-source sensing, data fusion, intelligent analysis, and coordinated applications, it achieves full coverage, accurate identification, dynamic tracking, and risk warning of low-altitude targets in the city. The urban low-altitude surveillance system needs to deploy hardware in layers according to the idea of ​​full coverage and focusing on key areas. Radar is responsible for network formation, optoelectronic equipment is responsible for fixed-point observation, and the tracking system is responsible for stable tracking. The radar units are deployed at the highest points in the city, responsible for detecting low-altitude targets within a range of 1-10 kilometers and an elevation angle of 0°-30°. The coverage radius of a single station is 5-8 kilometers. Full coverage can be achieved by networking 3-5 stations. Data is transmitted between stations through optical fiber to avoid signal interruption. Radar consists of components such as antennas, radomes, transceiver modules, and the main structure. Most radomes are made of fiber-reinforced composite materials, such as glass fiber with epoxy resin or carbon fiber with phenolic resin. The cleanliness and integrity of the radome are important factors in the accuracy of radar surveillance. During long-term surveillance, ultraviolet rays from outdoor sunlight can damage the resin molecular chains, causing the resin to change from a tough state to a brittle state. The originally flexible material becomes brittle and can crack easily. When subjected to slight vibrations, micro-cracks may appear on the surface. These cracks cause structural damage to the radome, ultimately leading to a decrease in radar detection accuracy. Furthermore, because radars are located at high altitudes, they are easily struck and adhered to by bird droppings or hail when there is no obstruction. This can cause corrosion of the base material or the formation of tiny pits. These pits become sources of electromagnetic wave scattering. When the radar beam sweeps across these pits, some signals are scattered in non-target directions, resulting in a decrease in the signal-to-noise ratio at the receiver, increasing the false detection rate, and further reducing radar detection accuracy. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a smart city low-altitude airspace situational awareness and monitoring system and equipment.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a smart city low-altitude airspace situational awareness and monitoring system and equipment, including radar monitoring equipment, which consists of an antenna, an antenna radome, a transceiver unit, and a main unit; it also includes: The detection plate is slidably connected inside the main unit and is connected to the first telescopic rod inside the main unit. A detection box is slidably connected to the top of the detection plate and is connected to the second telescopic rod on the detection plate. One end of the detection box is closed and the other end is open and close to the antenna. A detector is installed inside the detection box, and a cleaning shaft is installed inside the detection box. The cleaning shaft is connected to the first motor inside the detection box. A cleaning sponge is sleeved on the cleaning shaft, and a cleaning suction tube is installed inside the detection box, which contacts the cleaning sponge. A telescopic sleeve is installed inside the detection box, and a partition is provided inside the telescopic sleeve. A supply unit is provided on one side of the main unit. The output end of the supply unit is connected to one half of the partition in the telescopic sleeve, and the suction end of the supply unit is connected to the other half of the partition in the telescopic sleeve. The outer periphery of the telescopic sleeve is connected to the No. 3 telescopic rod inside the detection box. The cleaning shaft is provided with uniformly distributed spray holes. One end of the cleaning shaft is connected to the storage box installed inside the detection box and the output end of the supply unit through a valve. The storage box stores penetrant. The cleaning suction tube is connected to the suction end of the supply unit.

[0005] Preferably, a rolling shaft is rotatably connected inside the cleaning shaft, and one side of the outer periphery of the rolling shaft is exposed on the surface of the cleaning shaft. An applicator is stored in the cavity in the inner wall of the cleaning shaft and contacts the rolling shaft. A sealing cover is provided on the outer periphery of the cleaning shaft. A fourth telescopic rod is provided inside the detection box. The telescopic end of the fourth telescopic rod is provided with a hook to contact the sealing cover. A position sensor is provided on the part of the cleaning shaft near the rolling shaft and on the inner wall of the detection box. One end of the telescopic sleeve is equipped with a suction cup, which is annular. The suction cup is connected to the suction end of the supply unit through an air pipe. One end of the suction cup is equipped with an adsorption ring, which has an adsorption groove. The telescopic end of the third telescopic rod is equipped with a moving ring. A locking block is slidably connected to the moving ring by a spring. The locking block engages with the adsorption groove. The third telescopic rod is hinged to the detection box by a torsion spring.

[0006] Preferably, the open end of the telescopic sleeve is square tubular, and the end of the partition near the suction cup is hinged with a cleaning plate by a torsion spring.

[0007] Preferably, one end of the cleaning plate is hinged to a scraper by a torsion spring, and the scrapers are symmetrically distributed with respect to the partition.

[0008] Preferably, the telescopic sleeve is provided with an oil injection pipe, the open end of which is located at one end of the cleaning blade, and the opening of the oil injection pipe is located between adjacent scraper blades.

[0009] Preferably, a detection tube is installed on the radome, and the detection tube has a built-in valve and communicates with the inside of the radome, with one end of the detection tube matching the telescopic sleeve.

[0010] Preferably, the sealing cover surrounds the cavity in the inner wall of the cleaning shaft, and a heater is provided inside the sealing cover. A power supply connector is provided on the hook, and a power supply interface is provided on the sealing cover. The power supply connector and the power supply interface are matched.

[0011] Preferably, a fixed frame is hinged inside the sealing cover by a torsion spring, and a filter screen is provided inside the fixed frame, with the hinged part of the fixed frame contacting the surface of the cleaning shaft.

[0012] Preferably, a detection rod is provided on one side of the detection plate, and a No. 5 telescopic rod is connected between the detection rod and the detection plate; the cleaning suction tube is located at the bottom of the cleaning shaft, and a squeezing shaft is provided on one side of the cleaning suction tube, which contacts the cleaning sponge.

[0013] A smart city low-altitude airspace situational awareness and surveillance system is disclosed. The surveillance system includes radar surveillance equipment, photoelectric tracking equipment, and an early warning tracking system. The radar surveillance equipment continuously scans to detect low-altitude targets and completes preliminary detection and parameter extraction. After receiving radar instructions, the surveillance system dispatches the photoelectric tracking equipment to accurately identify the targets. After confirming the target attributes, the system enters a stable tracking phase, with the radar and photoelectric equipment working together in a collaborative manner.

[0014] The beneficial effects of this invention are as follows: 1. The smart city low-altitude airspace situational awareness and monitoring system and equipment described in this invention maintains a fixed distance between the detection box and the front of the radome during lifting, ensuring a constant contact force between the cleaning sponge and the front of the radome. This avoids uneven wiping force. However, the radome surface is coated with a protective coating or a signal-enhancing coating, which is prone to embrittlement after prolonged exposure to wind and sun. Uneven wiping force can easily lead to coating damage, cracks, or an expansion of the damaged area, affecting the accuracy of radar monitoring, increasing the damaged area of ​​the radar, increasing the area of ​​the repair coating, prolonging the radar's detection and maintenance time, and reducing radar operating efficiency.

[0015] 2. The present invention discloses a smart city low-altitude airspace situational awareness and monitoring system and equipment. When personnel activate the No. 3 telescopic pole, the telescopic sleeve extends and moves. The open end of the telescopic sleeve contacts the front of the radome and achieves a sealing effect through a configured sealing ring. A partition divides the upper and lower layers of the telescopic sleeve into an output pipe and a suction pipe. The output end of the supply unit delivers cleaning agent to the output pipe inside the telescopic sleeve, while the suction end of the supply unit draws cleaning agent from the suction pipe inside the telescopic sleeve. This allows the cleaning agent to travel directly from the upper layer of the telescopic sleeve to the open end, forming a concentrated water flow at the opening. This concentrated water flow can precisely impact areas where dirt adheres. For example, for highly adhesive pollutants such as bird droppings, the concentrated water flow can directly break the adhesion between the bird droppings and the radome surface through mechanical flushing force. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the working operation of the detection rod after cleaning; Figure 3 This is a partial cross-sectional view of the present invention from the frontal view; Figure 4 yes Figure 3 A magnified view of the central cleaning axis; Figure 5 yes Figure 4 A schematic diagram showing the rotation of the central cleaning shaft; Figure 6 yes Figure 4 A diagram showing the middle hook lifting the sealing cover away from the cleaning shaft; Figure 7 yes Figure 4 A schematic diagram of the connection process between the middle hook and the sealing cover; Figure 8 yes Figure 3 Enlarged view of a portion of the telescopic sleeve; Figure 9 yes Figure 8 A three-dimensional sectional view of the telescopic sleeve; In the diagram: Antenna 1, Antenna Cover 11, Main Unit 12, Detection Plate 13, Telescopic Rod 14, Detection Box 15, Telescopic Rod 2 16, Detector 17, Cleaning Shaft 18, Motor 19, Cleaning Sponge 2, Cleaning Suction Tube 21, Telescopic Sleeve 22, Partition 23, Supply Unit 24, Telescopic Rod 3 25, Spray Hole 26, Storage Box 27, Rolling Shaft 28, Sealing Cover 29, Telescopic Rod 4 3, Hook 31, Suction Cup 32, Adsorption Ring 33, Adsorption Tank 34, Moving Ring 35, Locking Block 36, Cleaning Plate 37, Scraper 38, Oil Injection Pipe 39, Detection Tube 4, Heater 41, Fixing Frame 42, Filter Screen 43, Detection Rod 44, Telescopic Rod 5 45, Extrusion Shaft 46. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: To effectively solve the above problems, see the attached diagram in the instruction manual. Figures 1-9As shown, a smart city low-altitude airspace situational awareness and monitoring device includes a radar monitoring device, comprising an antenna 1, an radome 11, a transceiver unit, and a host 12. The antenna 1 is used for radar signal collection, the radome 11 is used for protection and assistance in antenna 1 signal collection and dissemination, the transceiver unit is used for radar signal reception and transmission, and the host 12 is used for daily radar operation; it also includes: The detection plate 13 is slidably connected to the main unit 12. The detection plate 13 is connected to the first telescopic rod 14 inside the main unit 12. The top of the detection plate 13 is slidably connected to the detection box 15, and the detection box 15 is connected to the 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. The detection box 15 is equipped with a detector 17 and a cleaning shaft 18. The cleaning shaft 18 is connected to the first motor 19 inside the detection box 15. A cleaning sponge 2 is sleeved on the cleaning shaft 18. A cleaning suction tube 21 is provided inside the detection box 15 and contacts the cleaning sponge 2. The telescopic sleeve 22 is located inside the detection box 15 and has a partition 23 inside. A supply unit 24 is located on one side of the main unit 12. The output end of the supply unit 24 is connected to half of the partition 23 in the telescopic sleeve 22, and the suction end of the supply unit 24 is connected to the other half of the partition 23 in the telescopic sleeve 22. The outer periphery of the telescopic sleeve 22 is connected to the third telescopic rod 25 inside the detection box 15. The cleaning shaft 18 is evenly provided with spray holes 26. One end of the cleaning shaft 18 is connected to the storage box 27 installed in the detection box 15 and the output end of the supply unit 24 through a valve. The storage box 27 stores penetrant. The cleaning suction tube 21 is connected to the suction end of the supply unit 24. Detector 17 is a conventional visual detector 17 used for radome 11, and this type of detector 17 does not affect the radar. Detector 17 visually inspects the integrity and cleanliness of the radome 11 surface. Cleaning sponge 2 is a conventional tool used for cleaning radome 11. The opening end of telescopic sleeve 22 is square, and the remaining interior is circular. Telescopic sleeve 22 can be made of a flexible type such as corrugated pipe. Supply unit 24 is a pumping device consisting of a conventional output pump, a suction pump, and a tank for storing cleaning agent, commonly referred to as a pump system. This system typically includes one or more suction pumps for suction, and... One or more output pumps are used for delivery; storage tank 27 is used to store and deliver penetrant to cleaning shaft 18. The penetrant is a conventional solvent used for penetrant testing and works with detector 17 to complete the penetrant testing of radome 11; cleaning shaft 18 is connected to the output end of storage tank 27 and supply unit 24 through valves respectively. When cleaning is required, supply unit 24 delivers cleaning agent to cleaning shaft 18. When penetrant testing is required, storage tank 27 delivers penetrant to cleaning shaft 18; telescopic rod 14, telescopic rod 16, telescopic rod 25, telescopic rod 3, and telescopic rod 45 are all conventional telescopic devices; Specific workflow: Natural factors such as dust, bird droppings, rain, and hail directly affect the radome 11, indirectly impacting the radar's detection accuracy, stability, and response speed for low-altitude urban targets by damaging its physical integrity and reducing its wave transmission performance. Therefore, personnel conduct periodic inspections to reduce the impact of these natural factors on the radome 11 and improve the radar's detection performance. During inspection, the first telescopic rod 14 is activated to lift the detection plate 13 out of the main unit 12. After the detection plate 13 lifts the detection box 15, the second telescopic rod 16 moves the detection box 15 laterally closer to the front of the radome 11, i.e., the working surface of the radome 11, and raises and lowers along the front of the radome 11. During the raising and lowering process, the cooperation of the first telescopic rod 14 and the second telescopic rod 16 ensures that the detector 17 maintains a fixed distance from the front of the radome 11 during the raising and lowering process. This prevents changes in the distance between the detector 17 and the tilted radome 11 from affecting the shooting distance and thus impacting the accuracy of the surface detection of the radome 11. When the detector 17 detects a high dust area on the front of the radome 11, it starts the first motor 19 to drive the cleaning shaft 18 to rotate. During the process of the cleaning shaft 18 sweeping the dust downwards through the rotation of the cleaning sponge 2, the detection box 15 and the front of the radome 11 maintain a fixed distance for lifting and lowering, so that the contact force between the cleaning sponge 2 and 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 long-term exposure to wind and sun, the coating is prone to embrittlement and other problems. Uneven wiping force can easily lead to damage to the coating, cracks, or expansion of the damaged area, which will affect the accuracy of radar monitoring, expand the damaged area of ​​the radar, increase the area of ​​the repair coating, prolong the detection and maintenance time of the radar, and reduce the working efficiency of the radar. When detector 17 detects dirt or bird droppings, direct cleaning and wiping would drag the dirt along, increasing the contaminated area and the area of ​​corrosion on the radome 11's coating. This would reduce cleaning efficiency, require more cleaning agent, and necessitate repeated wiping, potentially damaging the coating. Therefore, personnel activate the third telescopic rod 25, extending the telescopic sleeve 22. The open end of the telescopic sleeve 22 contacts the front of the radome 11 and achieves a seal through the configured sealing ring, isolating the... 23 The upper and lower layers of the telescopic sleeve 22 are divided into an output pipe and a suction pipe. The output end of the supply unit 24 delivers cleaning agent to the output pipe inside the telescopic sleeve 22, and the suction end of the supply unit 24 draws cleaning agent from the suction pipe in the telescopic sleeve 22, so that the cleaning agent reaches the opening end directly from the upper layer of the telescopic sleeve 22, forming a concentrated water flow at the opening, which can accurately impact the area where dirt is attached. For example, for highly sticky pollutants such as bird droppings, the concentrated water flow can directly break the adhesion between bird droppings and the surface of the antenna cover 11 through mechanical flushing force. Furthermore, after the cleaning agent washes away the dirt, it is immediately drawn away through the lower suction pipe instead of dripping naturally. This prevents the washed-off dirt from re-accumulating on the surface of the radome 11 or spreading to other areas with the water flow. For example, if sand particles that fall off during the cleaning process are not removed in time, they may scratch the coating of the radome 11 under the influence of the water flow. The closed-loop design can reduce such risks, thereby reducing the damage caused by cleaning. Furthermore, by extending the sleeve with the telescopic rod and fitting it to the front of the radome 11, a local seal is achieved with the sealing ring. This ensures that the cleaning agent flows only in the target area. Even if there are minor bumps on the surface of the radome 11, the local water pressure after sealing allows the cleaning agent to penetrate into the pits and wash away the dust, bird droppings, and other debris hidden inside, thus improving the cleaning effect. At the same time, the detection box 15 can move the sleeve to adjust its position, allowing for targeted cleaning of localized contaminated areas without having to rinse the entire radome 11. This reduces unnecessary water consumption, avoids coating aging caused by large-area contact of the cleaning agent with the radome 11, and also speeds up drying after rinsing. In addition, compared with high-pressure water guns, cleaning is achieved through circulating cleaning agent. The impact force only acts on the dirt and will not cause physical damage to the anti-reflection film and protective coating on the surface of the radome 11, thus improving the cleaning effect, avoiding cracks in the coating, and maintaining the accuracy of the radar. After the fixed-point cleaning, the supply unit 24 supplies air into the telescopic sleeve 22, and the cleaning agent in the telescopic sleeve 22 is replaced by air. The airflow dries the fixed-point cleaned area, speeds up the drying speed in the case of small-area cleaning, reduces cleaning time, and improves the continuous working efficiency of the radar. When encountering hail or during routine checks of the radome 11's flatness, the supply unit 24 delivers cleaning agent into the cleaning shaft 18. The cleaning agent flows into the cleaning sponge 2 through the nozzle 26 inside the cleaning shaft 18, cleaning the front of the radome 11. 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 clamped radome 11. Then, the storage tank 27 delivers penetrant to the cleaning sponge 2 through the nozzle 26. The cleaning sponge 2 wipes the penetrant onto the surface of the radome 11 with a stable wiping force, and the penetrant acts on the surface of the radome 11. The surface of the radome 11, in conjunction with the detector 17, completes the penetration testing, thereby quickly detecting cracks and other defects on the surface of the radome 11. This facilitates subsequent maintenance by personnel. Combined with the cleaning and protection functions described above, it maintains the coating's effectiveness while promptly detecting and addressing cracks in the coating, preventing any impact on the accuracy of urban low-altitude surveillance. After detecting pits, the nozzle 26 sprays cleaning agent into the cleaning sponge 2, and the cleaning suction tube 21 draws the cleaning agent into the cleaning sponge 2, thus cleaning the sponge 2 and reducing the impact of the coating agent on subsequent cleaning.

[0020] Example 2: Based on Embodiment 1, a rolling shaft 28 is rotatably connected inside the cleaning shaft 18, and one side of the outer periphery of the rolling shaft 28 is exposed on the surface of the cleaning shaft 18. The cavity in the inner wall of the cleaning shaft 18 stores the sizing agent, which contacts the rolling shaft 28. A sealing cover 29 is provided on the outer periphery of the cleaning shaft 18. A fourth telescopic rod 3 is provided inside the detection box 15. The telescopic end of the fourth telescopic rod 3 is provided with a hook 31 that contacts the sealing cover 29. Position sensors are provided on the part of the cleaning shaft 18 near the rolling shaft 28 and on the inner wall of the detection box 15. The position sensors are distributed on the inner walls of the rolling shaft 28 and the detection box 15. When a depression is detected and the position sensors on the inner walls of the rolling shaft 28 and the detection box 15 are aligned, the position sensors send a position signal to the host 12, indicating that the rolling shaft 28 is located near the antenna cover 11, that is, the rolling shaft 28 is in contact, while the cleaning shaft 18 and the cleaning sponge 2 are not in contact with the surface of the antenna cover 11. The telescopic sleeve 22 is provided with a suction cup 32 at one end, and the suction cup 32 is annular. The suction cup 32 is connected to the suction end of the supply unit 24 through an air pipe. The suction cup 32 is provided with an adsorption ring 33 at one end, and the adsorption ring 33 is provided with an adsorption groove 34. The telescopic end of the third telescopic rod 25 is provided with a moving ring 35. A locking block 36 is slidably connected to the moving ring 35 through a spring. The locking block 36 engages with the adsorption groove 34. The third telescopic rod 25 and the detection box 15 are hinged by a torsion spring. The open end of the telescopic sleeve 22 is square tube-shaped, and the end of the partition 23 near the suction cup 32 is hinged with a cleaning plate 37 by a torsion spring. One end of the cleaning plate 37 is hinged to a scraper 38 by a torsion spring, and the scraper 38 is symmetrically distributed with respect to the partition 23. The telescopic sleeve 22 is provided with an oil injection pipe 39. The open end of the oil injection pipe 39 is located at one end of the cleaning plate 37, and the opening of the oil injection pipe 39 is located between adjacent scraper blades 38. Specific workflow: When encountering factors such as hail, sandstorms, and typhoons, the surface of the radome 11 is impacted, resulting in minor dents or even cracks. Structural damage can lead to non-directional leakage of electromagnetic waves, causing radar beam pointing deviation and affecting the accuracy of urban low-altitude surveillance. Therefore, when it is necessary to inspect the surface of the radome 11, the fourth telescopic rod 3 moves the hook 31 closer to the cleaning shaft 18. The cleaning shaft 18 rotates the sealing cover 29 to contact the hook 31. After the hook 31 contacts the sealing cover 29, the fourth telescopic rod 3 pulls the sealing cover 29 off the cleaning shaft 18. Then, the cleaning shaft 18 rotates until two position sensors are triggered. At this time, the rolling shaft 28 is positioned close to the radome 11. The detection box 15 moves the rolling shaft 28 closer to the front of the radome 11 via the cleaning shaft 18. Then, the detection box 15 moves the rolling shaft 28 along the surface of the radome 11. The roller 28 rotates and contacts the coating agent stored in the cleaning shaft 18 during the rolling process. The coating agent is a solvent that is conventionally applied to the surface of the radome 11 for color development, and the coating agent will not damage the coating of the radome 11. Since the surface of the roller 28 is flat, when the roller 28 rolls over the recesses of the radome 11, the roller 28 cannot contact them, so that the recesses of the radome 11 are not coated with the coating agent. The recesses are detected by the detector 17, so the number of recesses can be quickly and conveniently detected, which facilitates subsequent processing by personnel, improves detection efficiency, and shortens the time during radar detection, thereby improving radar monitoring efficiency. After the recess detection is completed, the sealing cover 29 is affected by the spring set between it and the detection box 15, and when the hook 31 descends and no longer squeezes, the sealing cover 29 descends and re-inserts into the cleaning shaft 18, so as to seal the roller 28 and the coating agent. Furthermore, during pit detection, the aforementioned cleaning process is combined to maintain the cleanliness of the radome 11 while conducting pit detection. Simultaneously, as the roller 28 applies the coating, the detector 17 detects the applied area. The pit detection is completed when the roller 28 completes one application, improving detection efficiency. The coating can be immediately cleaned with the cleaning sponge 2, reducing the coating's dwell time and avoiding any impact on the protective layer on the surface of the radome 11, thereby maintaining the accuracy of radar monitoring. Furthermore, to ensure that the rolling shaft 28 can roll along the front of the radome 11, a rack can be installed on one side of the radome 11. One end of the rolling shaft 28 extends beyond one end of the cleaning shaft 18 and is fitted with a gear. Through the cooperation of the gear and rack, the rolling shaft 28 can be ensured to roll along the front of the radome 11, evenly applying the coating agent to the surface of the radome 11 and improving the accuracy of pit detection. By setting up suction cup 32, when the open end of telescopic sleeve 22 contacts the dirt on the surface of radome 11, suction cup 32 also adheres to the surface of radome 11. The suction end of supply unit 24 draws air between suction cup 32 and radome 11 through air pipe, forming a vacuum adsorption effect, which strengthens the connection between telescopic sleeve 22 and the surface of radome 11. This improves the sealing effect without increasing the compressive force, avoiding the situation where the radome 11 is deformed due to increased compressive force for sealing. Furthermore, the sealing effect is further improved by the suction cup 32 in conjunction with the sealing ring at the end of telescopic sleeve 22. Furthermore, after the suction cup 32 is fixed to the antenna cover 11 by adsorption, the third telescopic rod 25 drives the moving ring 35 to retract. When the locking block 36 moves away from the adsorption groove 34, it is pressed against the moving ring 35 and moves. After the moving ring 35 moves away from the adsorption ring 33, the locking 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 torsion spring, the detection box 15 can move away from the suction cup 32 to carry out other work. For example, the detection box 15 is equipped with multiple telescopic sleeves 22. If multiple dirt is detected, the first telescopic sleeve 22 will be activated. After the retractable sleeve 22 is fixed, the detection box 15 drives the remaining telescopic sleeve 22 to rise and approach other dirt. The first telescopic sleeve 22, due to its telescopic function, is stretched and tilted along with the upper body of the detection box 15. The third telescopic rod 25 on the first telescopic sleeve 22 changes from horizontal to tilted due to the hinge, until the detection box 15 drives the second telescopic sleeve 22 to cover the second dirt. This allows the detection box 15 to process multiple dirt at the same time, shortens the cleaning time, and thus improves the efficiency of radar monitoring. Furthermore, after the telescopic sleeve 22 is fixed, its interior does not begin to work. The cleaning plate 37 remains horizontal due to the influence of the torsion spring and is blocked in the middle 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 aside the blocked cleaning plate 37, causing the cleaning plate 37 to swing downward. At the same time, the cleaning plate 37 moves the dirt, which, together with the flushing of the cleaning agent, speeds up the efficiency of the dirt being washed away. In addition, when the cleaning plate 37 swings downward, it drives the scraper 38 to swing downward. The scraper 38 below the cleaning plate 37 scoops up the dirt, which, together with the scraper 38 above, further speeds up the dirt removal efficiency, thereby improving the cleaning efficiency of the radar. Furthermore, the system can be configured to continuously supply air to the telescopic sleeve 22, or to use a pulsed cleaning method where one stream of cleaning agent is supplied, then paused, and then another stream is supplied. Dirt on the surface of the radome 11 often forms a tight bond, such as uric acid crystals from bird droppings seeping into coating gaps, or dust layers hardening into a shell due to static electricity or moisture. Continuously supplied cleaning agents, due to their stable impact force, tend to only wash the surface of the dirt, making complete removal difficult. Pulsed delivery, through intermittent changes in impact force, can physically disrupt the bonded structure of the dirt. The loosening effect of the first stream of cleaning agent, the penetrating and dissolving effect of the cleaning agent during the pause, and the secondary peeling effect of the second stream work together to completely remove the dirt from the surface of the radome 11. Compared to continuous supply, this stepped process of impact, penetration, and re-impact improves the removal of stubborn dirt and avoids the waste of cleaning agent caused by prolonged continuous rinsing. In addition, the anti-reflective film and protective coating on the surface of the radome 11 are sensitive to prolonged immersion or continuous contact with high-concentration cleaning agents. When the cleaning agent is continuously transported, the water flow may form a water film in non-dirty areas. If the cleaning agent contains trace amounts of active ingredients, long-term contact may cause the coating to lose its gloss or decrease its hydrophobicity. The above-mentioned method of transport, through intermittent pauses and suction, can reduce this ineffective contact. The cleaning agent repeatedly flushes the cleaning blade 37, causing it to drive the scraper 38 to swing repeatedly to clean the dirt, thus improving cleaning efficiency. Furthermore, by setting up an oil spray pipe 39, which can be connected to the air supply unit, and with a nozzle built into the opening of the oil spray pipe 39, during the cleaning interval when there is no cleaning agent in the telescopic pipe for a short period of time, the oil spray pipe 39 sprays a small amount of lubricant onto the scraping part of the radome 11, reducing the friction between the scraper 38 and the surface of the radome 11, avoiding excessive friction that could damage the coating of the radome 11, thereby maintaining the radar's monitoring accuracy.

[0021] Example 3: Based on Embodiment 2, a detection tube 4 is installed on the antenna cover 11, and the detection tube 4 has a built-in valve and communicates with the inside of the antenna cover 11. One end of the detection tube 4 is matched with the telescopic sleeve 22. The sealing cover 29 surrounds the cavity in the inner wall of the cleaning shaft 18, and a heater 41 is provided inside the sealing cover 29. A power supply connector is provided on the hook 31, and a power supply interface is provided on the sealing cover 29. The power supply connector and the power supply interface are matched. The sealing cover 29 has a fixed frame 42 hinged to it by a torsion spring, and a filter screen 43 is provided inside the fixed frame 42. The hinged part of the fixed frame 42 contacts the surface of the cleaning shaft 18. Specific workflow: Due to the heat generated by the radar equipment, the temperature inside the radome 11 is usually high, and the internal air may contain some moisture due to equipment heat dissipation and the sealed environment. During cleaning, the cleaning agent comes into contact with the outer surface of the radome 11 and rapidly lowers the temperature of the radome 11 wall through heat conduction. At the same time, the temperature of the inner wall of the radome 11 also decreases synchronously with the heat conduction of the radome. If the inner wall temperature drops below the dew point temperature of the internal air, the moisture in the internal air will condense into water droplets on the cold inner wall surface. The electrical components inside the radome 11 may be affected by the dripping water droplets, thus affecting the normal operation of the radar. Therefore, after one of the telescopic sleeves 22 is fixed to the port of the detection tube 4, it extends and retracts... The sleeve 22 draws and delivers clean, dry air into the radome 11 through the detection tube 4, reducing the condensation of water droplets on the inner wall of the radome 11. For example, pre-displacement before cleaning uses dry air to reduce the initial humidity and make the internal and external temperatures the same; continuous displacement during cleaning avoids water vapor accumulation and maintains low humidity; delayed displacement after cleaning accelerates the heating of the radome and removes residual water vapor, promptly removing any trace amounts of water vapor that may remain during the cleaning process, and avoiding the impact of condensed water droplets on radar equipment or the wave transmission performance of the inner wall of the radome 11; personnel can also install a temperature sensor inside the telescopic sleeve 22 to detect the temperature of the cleaning agent and the temperature of the air displaced from the radome 11. By setting a heater 41, when the hook 31 contacts the sealing cover 29, the power supply connector on the hook 31 is connected to 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. The heater 41 indirectly heats the coating agent through the sealing cover 29, increases the temperature of the coating agent, thereby increasing the fluidity of the coating agent. This allows the rolling shaft 28 to roll the coating agent onto the surface of the radome 11. The coating agent can fully contact the rolling shaft 28, making the surface of the radome 11 evenly coated and improving the detection accuracy of the pit. Furthermore, when pit detection is not performed, the coating agent is subjected to centrifugal force generated by the rotation of the cleaning shaft 18, causing the coating agent to flow from the cleaning shaft 18 into the sealing cover 29 and into the fixed frame 42. Before pit detection is required, the sealing cover 29 is kept vertically upward when the cleaning shaft 18 is stationary. When the coating agent flows back into the cleaning shaft 18, it passes through the filter screen 43. The filter screen 43 intercepts and filters impurities in the coating agent, improving the cleanliness of the coating agent and thus improving the fluidity of the coating agent. This further makes the coating on the surface of the antenna cover 11 uniform and improves the accuracy of pit detection.

[0022] Example 4: Based on Embodiment 3, a detection rod 44 is provided on one side of the detection plate 13, and a No. 5 telescopic rod 45 is connected between the detection rod 44 and the detection plate 13; the cleaning suction tube 21 is located at the bottom of the cleaning shaft 18, and a squeezing shaft 46 is provided on one side of the cleaning suction tube 21, and the squeezing shaft 46 contacts the cleaning sponge 2. Specific workflow: After cleaning the radar, activate telescopic boom 45 to move the detection boom 44 to the radar's normal self-test position. Activate the radar detection boom 44 and assist personnel in calibrating the radar based on the test results. This is because contamination of the radome 11 can cause stealth performance deviations, such as beam pointing deviation and reduced signal gain. Even after cleaning, if calibration is not performed simultaneously, parameter errors caused by historical contamination may remain. Therefore, after cleaning, use the detection boom 44 to perform preliminary calibration. Through calibration, the cleaned radar is reset to its working state, improving low-altitude monitoring accuracy. By setting the squeezing shaft 46, after the cleaning sponge 2 detects or cleans the pit, the cleaning sponge 2 rotates and passes through the squeezing shaft 46. The squeezing shaft 46 rolls and squeezes the cleaning sponge 2. At the same time, the water inside the cleaning sponge 2 is squeezed out by the squeezing shaft 46 and drawn away by the cleaning suction tube 21, which speeds up the drying and cleaning of the cleaning sponge 2. This allows the cleaning sponge 2 to quickly switch between cleaning agents and other cleaning tasks without causing mutual contamination, improving the self-cleaning ability of the parts, thereby improving cleaning efficiency and thus improving radar monitoring efficiency.

[0023] Example 5: A smart city low-altitude airspace situational awareness and surveillance system is disclosed. The surveillance system includes radar surveillance equipment, photoelectric tracking equipment, and an early warning tracking system. The radar surveillance equipment continuously scans to detect low-altitude targets and completes preliminary detection and parameter extraction. After receiving radar instructions, the surveillance system dispatches the photoelectric tracking equipment to accurately identify the targets. After confirming the target attributes, the system enters a stable tracking phase, with the radar and photoelectric equipment working together in a collaborative manner.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart city low-altitude airspace situational awareness and monitoring device, comprising radar monitoring equipment, consisting of an antenna (1), an radome (11), a transceiver unit, and a host (12); characterized in that, Also includes: The detection plate (13) is slidably connected to the host (12). The detection plate (13) is connected to the first telescopic rod (14) inside the host (12). The top of the detection plate (13) is slidably connected to the detection box (15), and the detection box (15) is connected to the 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). The detection box (15) is equipped with a detector (17) and a cleaning shaft (18). The cleaning shaft (18) is connected to the first motor (19) inside the detection box (15). A cleaning sponge (2) is sleeved on the cleaning shaft (18). A cleaning suction tube (21) is provided inside the detection box (15). The cleaning suction tube (21) contacts the cleaning sponge (2). Telescopic sleeve (22) is located inside the test box (15) and is equipped with a partition (23). A supply unit (24) is provided on one side of the main unit (12). The supply unit (24) is connected to the telescopic sleeve (22). The outer periphery of the telescopic sleeve (22) is connected to the No. 3 telescopic rod (25) inside the test box (15). The cleaning shaft (18) is evenly provided with spray holes (26). One end of the cleaning shaft (18) is connected to the storage box (27) installed in the test box (15) and the output end of the supply unit (24) through a valve. The storage box (27) stores penetrant. The cleaning suction tube (21) is connected to the suction end of the supply unit (24).

2. The smart city low-altitude airspace situational awareness and monitoring device according to claim 1, characterized in that: The cleaning shaft (18) is rotatably connected to a rolling shaft (28), and one side of the outer periphery of the rolling shaft (28) is exposed on the surface of the cleaning shaft (18). The cavity in the inner wall of the cleaning shaft (18) stores an applicator that contacts the rolling shaft (28). The outer periphery 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) that contacts the sealing cover (29). The cleaning shaft (18) near the rolling shaft (28) and the inner wall of the detection box (15) are provided with matching position sensors. The telescopic sleeve (22) is provided with a suction cup (32) at one end, and the suction cup (32) is annular. The suction cup (32) is connected to the suction end of the supply unit (24) through an air pipe. The suction cup (32) is provided with an adsorption ring (33) at one end, and an adsorption groove (34) is provided on the adsorption ring (33). The telescopic end of the third telescopic rod (25) is provided with a moving ring (35). A locking block (36) is slidably connected to the moving ring (35) through a spring. The locking block (36) engages with the adsorption groove (34). The third telescopic rod (25) and the detection box (15) are hinged by a torsion spring.

3. The smart city low-altitude airspace situational awareness and monitoring device according to claim 2, characterized in that: The telescopic sleeve (22) has a square tube opening, and a cleaning plate (37) is hinged to the end of the partition (23) near the suction cup (32) by a torsion spring.

4. The smart city low-altitude airspace situational awareness and monitoring device according to claim 3, characterized in that: The cleaning plate (37) has a scraper (38) hinged at one end by a torsion spring, and the scraper (38) is symmetrically distributed with respect to the partition (23).

5. A smart city low-altitude airspace situational awareness and monitoring device according to claim 4, characterized in that: The telescopic sleeve (22) is provided with an oil injection pipe (39), the open end of the oil injection pipe (39) is located at one end of the cleaning blade (37), and the opening of the oil injection pipe (39) is located between adjacent scraper blades (38).

6. A smart city low-altitude airspace situational awareness and monitoring device according to claim 5, characterized in that: The antenna cover (11) is equipped with a detection tube (4), and the detection tube (4) has a built-in valve and is connected to the inside of the antenna cover (11). One end of the detection tube (4) is matched with the telescopic sleeve (22).

7. A smart city low-altitude airspace situational awareness and monitoring device according to claim 2, characterized in that: The sealing cover (29) surrounds the cavity in the inner wall of the cleaning shaft (18), and a heater (41) is provided inside the sealing cover (29). A power supply connector is provided on the hook (31), and a power supply interface is provided on the sealing cover (29). The power supply connector and the power supply interface are matched.

8. A smart city low-altitude airspace situational awareness and monitoring device according to claim 7, characterized in that: The sealing cover (29) is hinged to a fixed frame (42) by a torsion spring, and a filter screen (43) is provided inside the fixed frame (42). The hinged part of the fixed frame (42) contacts the surface of the cleaning shaft (18).

9. A smart city low-altitude airspace situational awareness and monitoring device according to claim 1, characterized in that: The detection plate (13) is provided with a detection rod (44) on one side, and a No. 5 telescopic rod (45) is connected between the detection rod (44) and the detection plate (13); the cleaning suction tube (21) is located at the bottom of the cleaning shaft (18), and a squeezing shaft (46) is provided on one side of the cleaning suction tube (21), and the squeezing shaft (46) contacts the cleaning sponge (2).

10. A smart city low-altitude airspace situational awareness and surveillance system, the surveillance system being applicable to the surveillance equipment described in any one of claims 1-9, characterized in that: The surveillance system includes radar surveillance equipment, photoelectric tracking equipment, and an early warning tracking system. The radar surveillance equipment continuously scans to detect low-altitude targets and completes preliminary detection and parameter extraction. After receiving radar commands, the surveillance system dispatches the photoelectric tracking equipment to accurately identify the targets. After confirming the target's attributes, the system enters a stable tracking phase, with radar and optoelectronic equipment working together in a coordinated manner.

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