Small target detection radar for navigation, communication control method and navigation guarantee system

Abstract

The invention relates to the technical field of detection radars, in particular to a small target detection radar for navigation, a communication control method and a navigation guarantee system. The radar comprises a communication unit, a lamp unit and a radar unit from top to bottom. The communication unit comprises a communication antenna located at the top and a control module; the lamp units are arranged on entity buoys on the two sides of a channel. The radar unit comprises a radar antenna and a radar driver, and 360-degree full-angle target scanning and tracking are achieved. The system provides target position, speed and course information for a ship through radar data and AIS early warning. Visibility data is reserved through the monitoring platform, and meteorological research and maritime affair supervision are supported. Radar detection, lighting technology, AIS information and image data are used for collaborative analysis of the channel state, intelligent start-stop control is achieved based on visibility data, the system can be applied to scenes such as buoys and lamp piles, and the marine small target detection capability and the navigation safety management level are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of detection radars, and particularly to a small target detection radar for navigation, a communication control method, and a navigation safety guarantee system. Background Art

[0002] Traditional radar systems have certain limitations in marine applications. On the one hand, affected by factors such as antenna height, earth curvature, and target reflection ability, the maximum detection range of general radars is limited. For some targets with slow speeds and small radar cross-sections at sea, such as small fishing boats and speedboats, it is difficult to effectively detect, capture, and dispose of them. On the other hand, the detection of weak targets in complex backgrounds has always been a difficult problem in the field of radar target detection. Especially under low visibility conditions, such as foggy days and dense fog, ships have insufficient perception of small targets, which easily leads to an increased risk of collision. In addition, the existing beacon lights have relatively single functions, mainly serving for illumination and identification, lacking the ability to dynamically monitor the surrounding environment and collect data, and unable to meet the diverse needs of modern marine navigation safety and supervision. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention proposes a small target detection radar for navigation, a communication control method, and a navigation safety guarantee system, which can improve the detection ability of small targets with low radar cross-sections and achieve collaborative work with beacon lights to enhance marine navigation safety and supervision efficiency.

[0004] To achieve the above technical effects, the present invention proposes a small target detection radar for navigation, comprising A small target detection radar for navigation, which includes a communication unit, a beacon unit, and a radar unit from top to bottom; The communication unit includes a communication antenna and a control module located at the top; The beacon unit is installed on the solid buoys on both sides of the waterway; The radar unit includes a radar antenna and a radar driver, which can achieve 360-degree full-angle target scanning and tracking.

[0005] Further, the beacon unit is a visibility integrated beacon light or an intelligent imaging beacon light.

[0006] Further, the intelligent imaging beacon light includes an aluminum alloy housing, a control main board, an LED light source, an AIS unit, and an intelligent imaging unit; the AIS unit is used to receive ship AIS information and trigger an electronic fence warning. When a ship enters the set area, it starts the image recording and locking function and uploads the warning information to the monitoring system; it also includes an acceleration sensor, which continuously turns on the image recording and locking function when a collision is detected.

[0007] Further, the integrated visibility navigation light includes a power supply unit, a visibility acquisition and analysis unit, and a communication module.

[0008] Further, the radar unit includes a four-sided bracket provided at the bottom of the lamp unit, a radar antenna, and a radar driver; the communication unit includes the radar antenna; the radar driver is fixed inside the four-sided bracket; the radar antenna is composed of four phased array units and is provided outside the radar driver.

[0009] Further, the radar antenna is annular and is installed and fixed on the groove-shaped structure of the lamp unit; the radar driver is arranged in the radar main board installation bin of the lamp base and is connected to the communication antenna through a waterproof interface.

[0010] A communication control method for a small target detection radar for navigation as described above includes the following steps: S1. Real-time collect target echo signals through the radar unit and process them; S2. Upload data to a remote server through the communication unit; S3. Combine the radar data, the image data collected by the AIS unit and the intelligent image unit, and analyze the navigable information of the waterway through the data fusion system; S4. Automatically control the working area of the radar based on the data collected by the visibility acquisition and analysis unit to achieve customized sleep and power-saving modes.

[0011] Further, under low visibility conditions, the integrated visibility navigation light is used to monitor visibility data in real time, predict the range of radiation fog in combination with radar detection information, and send warning signals to ships.

[0012] A marine intelligent navigation mark system includes the small target detection radar for navigation as described above; The system provides target position, speed, and heading information for ships through radar data and AIS warnings; The system retains visibility data through a monitoring platform to support meteorological research and maritime supervision.

[0013] Further, when the system detects a collision or an electronic fence warning, it automatically locks the image data into a black box and uploads the alarm information to the monitoring platform.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. Multi-source information fusion detection: Through the cooperation of multiple sensors such as the radar unit, AIS collision warning, image recording, and visibility monitoring, three-dimensional waterway monitoring is realized. It can track more than 30 targets larger than 2㎡ at the same time and effectively identify potential dangers such as small fishing boats and floating objects.

[0015] 2. Intelligent Environment Adaptation: Adopt a visibility adaptive control strategy, dynamically adjust the radar working area based on real-time visibility data to ensure stable operation in severe sea conditions.

[0016] 3. Enhanced Low Visibility Warning: Early warning of the range of patchy fog, combined with radar target data to achieve automatic collision avoidance guidance for ships, reducing the collision accident rate in foggy days.

[0017] 4. Structural Integration Innovation: Integrated design of four-sided phased array radar and beacon light; The seamless integration of the lamp cover and the luminous band is achieved in the ring antenna version, improving the structural compactness.

[0018] 5. Expansion of Data Application: The system provides a historical visibility database to support meteorological research; The image black box function provides direct evidence for maritime law enforcement. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the small target detection radar for navigation of the present invention; In the figure: 1. Communication unit; 11. Beidou antenna; 12. Control module; 2. Lamp unit; 3. Radar unit; 31. Radar antenna; 32. Radar drive. Detailed Embodiment

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below, and preferred embodiments of the present invention are given. However, it should be understood that these embodiments are only for more detailed description and should not be construed as limiting the present invention in any form, that is, it is not intended to limit the protection scope of the present invention. Embodiment

[0021] As Figure 1 shown, this embodiment discloses a small target detection radar for navigation, which includes a communication unit 1, an optional lamp unit 2 and a radar unit 3 from top to bottom; The communication unit includes a Beidou antenna 11 and a control module 12 located at the top; Preferably, the lamp unit 2 is installed on the solid buoys on both sides of the waterway, and a visibility integrated beacon light or an intelligent image beacon light with mature technology can be selected; The integrated visibility navigation light is used to monitor the visibility conditions around the buoy. The integrated visibility navigation light mainly consists of a power supply unit, a lamp unit, a communication unit, and a visibility acquisition and analysis unit. The lamp has both the functions of a navigation light and visibility monitoring. It transmits image information to the background server through 5G or the Beidou satellite system, and then calculates the visibility value through a dedicated algorithm. The visibility value can be accurately displayed through a display device, so as to achieve the effect of real-time monitoring of the visibility of the waterway. The protection level of the lamp is IP66 / IP68, and it can be applied to marine buoys, light posts, light ships, etc. The integrated visibility navigation light is self-powered. The power supply unit includes a lithium battery pack, a solar panel, and a BMS battery management system, which is designed as an integrated structure with the lamp and provides power for the lamp unit, the communication unit, and the visibility acquisition and analysis unit.

[0022] The integrated visibility navigation light has a light range of 4 nautical miles and has functions of BDS / NB-IOT / GPRS / CDMA remote communication and short-range Bluetooth communication. It can read the operating status parameters, visibility data, alarm records, etc. of the lamp at close range, and can also set the working parameters of the lamp.

[0023] The visibility acquisition and analysis unit can automatically and continuously monitor the atmospheric visibility. The visibility measurement range is 10 - 5000m, and the visibility measurement error is ±10% (≤1500m), ±20% (>1500m). It can calculate the atmospheric visibility by actively emitting infrared light beams and measuring the scattering of the light beams by atmospheric particles in the sampling area. It is connected to the control main board through a 485 communication interface. When the atmospheric visibility is acquired, the data is transmitted to the monitoring platform through the control main board. The staff can monitor the visibility conditions around the lamp in real time, perceive the range of radiation fog in advance, and make timely predictions and treatments. The monitoring system can retain the visibility data to provide data support for meteorological research.

[0024] The intelligent image navigation light is also installed on the solid buoys on both sides of the waterway to monitor the video images around the buoy and observe the visibility conditions at the same time.

[0025] The intelligent image navigation light mainly consists of an aluminum alloy shell, a control main board, an LED light source, an AIS unit, and an intelligent image unit. The lamp has both the functions of a navigation light and intelligent image recording, and can be applied to navigation aids such as buoys and light posts.

[0026] The intelligent image beacon has AIS collision warning and collision alarm functions. The built-in AIS unit can receive AIS information of nearby ships. When a ship enters the set electronic fence area, it sends a collision warning signal to the ship, and at the same time activates the image recording and locking function, stores the images within the warning range in the "black box", and uploads the warning information to the monitoring system. The lamp device is built with an acceleration sensor. When the buoy is collided, it continuously activates the image recording and locking function and uploads the alarm information to the monitoring system.

[0027] The radar unit 3 includes a four-sided bracket, a radar antenna 31 and a radar driver 32 provided at the bottom of the lamp device unit; the radar driver 32 is fixed inside the four-sided bracket; the radar antenna 31 is composed of four phased array units, which is provided outside the radar driver. The single-sided scanning range is 90°×90°, and the radar operating range can reach 500 meters. It realizes 360-degree full-angle target scanning and tracking in a facet scanning manner, and can simultaneously track 30 targets larger than 2 square meters in the area. At the same time, the radar protection level reaches IP67, and the operating temperature range is -35°C to +60°C; the operating voltage of the communication unit is 9-36VDC, which can adapt to the harsh marine environmental conditions and ensure the stable operation of the equipment. Embodiment 2

[0028] In this embodiment, the radar unit is different from that in Embodiment 1. Specifically, the radar antenna is annular and is installed and fixed on the groove structure of the lamp device unit. The radar driver is provided in the radar main board installation bin added at the bottom of the lamp device base. The radar driver includes a radar main board and a signal processing module, and is connected to the antenna through a waterproof interface, and the protection level reaches IP67.

[0029] Embodiment 3 This embodiment discloses a communication control method for a small target detection radar used in navigation in Embodiments 1 and 2, which specifically includes the following steps: S1. After real-time searching for nearby targets through the radar unit, collect and process the target echo signals; S2. Real-time upload data information to the remote data server through the remote communication unit; S3. Display the target status of the current area through the data fusion system, and combine other radar, AIS and image data, etc. to analyze and manage the navigation information of the waterway and water surface.

[0030] To achieve the purpose of power saving, the small target radar can be combined with the management analysis system to realize customized work and sleep modes, and automatically judge the opening area through the data information of the visibility sensor, so as to achieve the purpose of power saving and intelligence.

[0031] In practical applications, the small target radar is installed on the beacon light, forming an intelligent beacon system integrating lighting, identification, and detection functions. When a ship is sailing at sea, the small target radar can monitor small targets in the surrounding sea area in real time, such as small fishing boats, speedboats, floating objects, etc., and transmit the detection data to the remote monitoring system. After analyzing and processing the data, the monitoring system can provide accurate navigation assistance information for the ship, such as the position, speed, and heading of the target, to help the ship avoid in time and reduce the collision risk. At the same time, the integrated system of the small target radar and the beacon light can also provide rich information support for the marine supervision of the navigation environment, assisting in cracking down on criminal activities such as smuggling and illegal offshore fishing.

[0032] In addition, the system has important application value under low visibility conditions. For example, in foggy or dense fog environments, the integrated visibility beacon light can monitor the visibility conditions around the waterway in real time and transmit the data to the monitoring system. Based on the visibility data and the detection information of the small target radar, the monitoring system can predict the dense fog area in advance and issue a warning to the ship in time, reminding the ship to slow down or take other necessary safety measures, thus effectively reducing the navigation risk under low visibility conditions.

[0033] The small target radar of the present invention and its integrated system in the beacon light achieve the close integration and collaborative work of the radar and the light by optimizing the mechanical structure and electrical communication principle of the radar. This innovative design not only improves the detection ability of small targets at sea and the navigation safety, but also provides strong technical support for the construction of intelligent navigation protection.

[0034] It should be noted that the above content is a further detailed description of the present invention in combination with specific implementation manners, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions; the size data of this embodiment does not limit the technical solution, but only shows one specific working condition. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple improvements and refinements can still be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A small target detection radar for navigation, characterized in that: From top to bottom, it includes the communication unit, lighting unit and radar unit; The communication unit includes a communication antenna and a control module located at the top; The lighting unit is arranged on the physical buoys on both sides of the channel; The radar unit includes a radar antenna and a radar driver to achieve 360-degree full-angle target scanning and tracking; The radar unit includes a four-sided bracket, a radar antenna and a radar driver arranged at the bottom of the lamp unit; the communication unit includes a radar antenna; the radar driver is fixed inside the four-sided bracket; the radar antenna is composed of four sets of phased array units and is arranged outside the radar driver; the single-sided scanning range is 90°×90°, the radar action range can reach 500 meters, and 360-degree full-angle target scanning and tracking can be achieved in a faceted scanning manner, and 30 targets larger than 2 square meters in the area can be tracked at the same time; or, The radar antenna is annular and is mounted and fixed on the slot structure of the lamp unit; The radar driver is installed in the radar mainboard installation compartment of the lamp base and connected to the communication antenna through a waterproof interface.

2. The small target detection radar for navigation according to claim 1, characterized in that: The lighting unit is a visibility integrated navigation light or an intelligent imaging navigation light.

3. The small target detection radar for navigation according to claim 2, characterized in that: The intelligent imaging beacon light includes an aluminum alloy shell, a control mainboard, an LED light source, an AIS unit and an intelligent imaging unit; the AIS unit is used to receive ship AIS information and trigger an electronic fence warning. When the ship enters the set area, the image recording and locking function is activated, and the warning information is uploaded to the monitoring system; it also includes an acceleration sensor, which continuously turns on the image recording and locking function when a collision is detected.

4. The small target detection radar for navigation according to claim 2, characterized in that: The visibility integrated navigation light comprises a power supply unit, a visibility collection and analysis unit and a communication module.

5. The communication control method of the small target detection radar for navigation as claimed in claim 3 is characterized in that: The following steps are involved: S1, collect and process the target echo signal in real time through the radar unit; S2, uploading the data to a remote server via a communication unit; S3, combining radar data, image data collected by AIS unit and intelligent imaging unit, and analyzing navigation information through data fusion system; S4. Automatically control the radar working area based on the data collected by the visibility collection and analysis unit to achieve customized sleep and power saving modes.

6. The communication control method of the small target detection radar for navigation as claimed in claim 3 is characterized in that: Under low visibility conditions, visibility data is monitored in real time through integrated visibility navigation lights, the range of fog is predicted in combination with radar detection information, and early warning signals are sent to ships.

7. A marine intelligent navigation support system, characterized in that: A small target detection radar comprising any one of claims 1 to 4; The system provides target position, speed and heading information to the ship through radar data and AIS warning; The system retains visibility data through a monitoring platform to support meteorological research and maritime supervision.

8. The intelligent navigation support system according to claim 7 is characterized in that: When the system detects a collision or electronic fence warning, it automatically locks the image data into the black box and uploads the alarm information to the monitoring platform.

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