Low-altitude target detection device based on X-band phase-controlled radar

Abstract

The utility model relates to the technical field of radars, in particular to a low-altitude target detection device based on an X-band phase control radar, which comprises a supporting assembly, a control assembly and a fixing assembly, and is characterized in that the supporting assembly comprises a supporting seat and a hinge frame, the hinge frame is connected to the supporting seat, and the control assembly comprises a heat dissipation mechanism, a TR module, a sum-difference network, a beam control circuit and a frequency synthesizer. The heat dissipation mechanism comprises a heat dissipation frame, the heat dissipation frame is connected to the hinge frame, the sum-difference network is connected to the TR module, the beam control circuit is integrated in the main controller, the beam control circuit is electrically connected with the TR module, the frequency synthesizer is connected to the beam control circuit, and the TR module, the sum-difference network, the beam control circuit and the frequency synthesizer form a radar detection piece; the fixing assembly comprises a fixing frame, the radar detection piece is connected into the fixing frame, and the fixing frame is detachably connected into the heat dissipation frame; the method has the effect of facilitating quick replacement and maintenance of key components such as the TR module and the like.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of radars, in particular to a low-altitude target detection device based on an X-band phased radar. BACKGROUND

[0002] Low-altitude target detection is an important part of modern national defense and civil aviation safety. With the popularity of unmanned aerial vehicles and other small aircraft, effective monitoring of low-altitude areas becomes increasingly important. Traditional radar systems are mainly used for detecting high-altitude targets and have many blind spots in low-altitude environments, making it difficult to meet the comprehensive coverage requirements in complex environments.

[0003] In order to improve the reliability and flexibility of the low-altitude target detection system, existing phased array radars usually use solid-state transmit / receive (TR) modules to realize the transmitting and receiving functions of signals. These TR modules integrate amplifiers, phase shifters, and switch function components, which can flexibly adjust the beam direction and gain, thereby improving the detection performance.

[0004] In view of the related technologies in the above, the existing low-altitude target detection device still faces some challenges in actual use, especially in the case of frequent replacement of key components such as TR modules, the traditional method is often not convenient and efficient. Since the TR module is one of the core parts of the radar system, its performance directly affects the detection effect of the entire system, therefore, how to realize the rapid replacement of the detection part becomes a problem to be solved. CONTENT OF THE INVENTION

[0005] In order to overcome the above problems, the application provides a low-altitude target detection device based on an X-band phased radar.

[0006] The low-altitude target detection device based on an X-band phased radar provided by the application adopts the following technical scheme:

[0007] A low-altitude target detection device based on an X-band phased radar, comprising a support assembly, a control assembly, and a fixing assembly, the support assembly comprises a support seat and a hinged frame, the hinged frame is connected to the support seat, the control assembly comprises a heat dissipation mechanism, a TR module, and a sum-difference network, a beam control circuit, and a frequency synthesizer, the heat dissipation mechanism comprises a heat dissipation frame, the heat dissipation frame is connected to the hinged frame, the sum-difference network is connected to the TR module to realize the synthesis and processing of signals, the beam control circuit is integrated in a main controller, the beam control circuit is electrically connected to the TR module to realize the direction control of the beam, the frequency synthesizer is connected to the beam control circuit, when the radar starts, the frequency synthesizer generates a radio frequency signal of a specified frequency, the TR module, the sum-difference network, the beam control circuit, and the frequency synthesizer form a radar detection part;

[0008] The fixing assembly comprises a fixing frame, and the radar detection member is connected in the fixing frame, and the fixing frame is detachably connected in the heat dissipation frame.

[0009] By adopting the technical scheme, the height integration and modular design of the low-altitude target detection device are realized, and specifically, the heat dissipation mechanism, the TR module, the difference network, the beam control circuit and the frequency synthesizer in the control assembly cooperate together to improve the signal processing capability and the detection precision, the TR module is responsible for the transmission and reception of signals, the difference network realizes the synthesis and processing of signals, the signal-to-noise ratio and the anti-interference capability are improved, the frequency synthesizer generates stable radio frequency signals to guarantee the reliability and consistency of the system, the detachable design is adopted to facilitate the quick replacement and maintenance of the TR module and other key components, and the maintenance efficiency and reliability of the system are improved.

[0010] In a specific implementation scheme, the heat dissipation mechanism further comprises two partitions, both of which are connected in the heat dissipation frame, the partitions are arranged along the depth direction of the heat dissipation frame, the two partitions are parallel to each other, and the partitions divide the interior of the heat dissipation frame into a heat dissipation cavity, a control cavity and a heat dissipation cavity in sequence along the depth direction perpendicular to the heat dissipation frame, and the fixing frame is located in the control cavity.

[0011] The fixing assembly further comprises a mounting member, the mounting member comprises two insertion blocks, two first springs and two connecting rods, both of the insertion blocks are located in the control cavity, the insertion blocks correspond to the two side walls of the heat dissipation frame opposite to each other in a one-to-one manner, the heat dissipation frame is provided with two accommodation grooves in the control cavity for accommodating the insertion blocks, the insertion blocks are elastically and slidably connected to the heat dissipation frame, the two insertion blocks move towards or away from each other, the side of the insertion block away from the bottom of the heat dissipation frame is arranged in an inclined manner, the inclined surfaces of the two insertion blocks are inclined towards each other from the partitions to the bottom of the heat dissipation frame, the side wall of the fixing frame is provided with an insertion groove for inserting the insertion block, the connecting rods correspond to the insertion blocks in a one-to-one manner, the setting direction of the connecting rods is consistent with the axis direction of the heat dissipation frame, one end of the connecting rod protrudes into the insertion groove on the side of the fixing frame close to the TR module, the connecting rod is elastically and slidably connected to the fixing frame, the sliding direction of the connecting rod is parallel to the axis direction of the heat dissipation frame, and the connecting rod is used to drive the movement of the insertion block.

[0012] By adopting the technical scheme, two partitions reasonably divide the internal space of the heat dissipation frame into three areas, namely, a heat dissipation cavity, a control cavity and a heat dissipation cavity. This layout not only optimizes the utilization of the internal space, but also improves the heat dissipation efficiency. The design of the plug and the connecting rod realizes quick disassembly and assembly of the fixed frame, facilitates replacement and maintenance of the radar detection device, the inclined surface of the plug is designed to automatically retract during insertion, thereby reducing the operation difficulty and ensuring the reliability of fixation. Overall, the design scheme significantly improves the heat dissipation performance and maintainability of the low-altitude target detection device.

[0013] In a specific implementable scheme, the heat dissipation frame is closed at one side close to the hinged frame.

[0014] The mounting member further comprises at least two second springs, each of the two second springs is located on the two side walls opposite to the bottom wall of the heat dissipation frame, the second spring is located in the control cavity, the setting direction of the second spring is consistent with the axis direction of the heat dissipation frame, one end of the second spring is connected with the heat dissipation frame, and the other end of the second spring is in abutment with the fixed frame after the fixed frame is connected with the heat dissipation frame.

[0015] By adopting the technical scheme, the heat dissipation frame is closed at one side close to the hinged frame, thereby avoiding the entry of external dust and moisture into the internal space of the heat dissipation frame and improving the protection performance of the radar detection device. After the fixed frame is connected with the heat dissipation frame, the other end of the second spring is in abutment with the fixed frame and the second spring is compressed, thereby increasing the connection stability between the fixed frame and the heat dissipation frame and providing a buffering effect during disassembly and assembly, thereby reducing the influence of mechanical impact on the radar detection device. During disassembly, the second spring has a pushing effect on the fixed frame, thereby facilitating separation of the fixed frame and the heat dissipation frame.

[0016] In a specific implementable scheme, the heat dissipation mechanism further comprises two heat dissipation members, each of the heat dissipation members corresponds to a heat dissipation cavity, the heat dissipation member comprises a plurality of heat dissipation fins, the plurality of heat dissipation fins are parallel to each other, gaps are left between the plurality of heat dissipation fins, and the heat dissipation fins are connected to the heat dissipation frame.

[0017] By adopting the technical scheme, the plurality of heat dissipation fins are parallel to each other and gaps are left between the heat dissipation fins, which is conducive to air circulation and accelerates heat dissipation, thereby reducing the internal temperature of the radar and ensuring stable operation of the equipment and prolonging the service life.

[0018] In a specific implementable scheme, the heat dissipation mechanism further comprises four fans, the four fans are divided into two groups, each group of the fans corresponds to a heat dissipation cavity, one of the fans in one group of the fans close to the same heat dissipation cavity is embedded on the partition, the other fan is embedded on the side wall of the heat dissipation frame opposite to the partition, and the two fans in the same group correspond to each other.

[0019] By adopting the above technical scheme, the four fans in the heat dissipation mechanism can effectively promote the air circulation in the heat dissipation cavity, enhance the heat dissipation effect, and specifically, the two corresponding fans arranged in each heat dissipation cavity form a closed air circulation path, which can not only quickly take away heat but also prevent external dust from entering the inside of the heat dissipation cavity, thereby prolonging the service life of the equipment and ensuring its stable operation; in addition, this design can also maintain the normal operation of the radar system in an extremely high-temperature environment, ensuring its reliability and high-performance performance under various complex conditions.

[0020] In a specific implementable scheme, the support assembly further comprises a rotating plate and a rotating piece, the rotating plate is rotationally connected to the top of the support base, the rotating piece is connected to the support base, the rotating piece is connected with the rotating plate to drive the rotating plate to rotate, and the hinged frame is connected to the top of the rotating plate.

[0021] By adopting the above technical scheme, the radar detection device can realize large-range scanning on the horizontal plane. This design not only improves the coverage area of the radar for low-altitude targets, but also adapts to the target detection requirements of different angles, enhances the flexibility and applicability of the system, and at the same time, the driving function of the rotating piece ensures the stability and controllability of the rotating process, improves the stability and reliability of the radar operation.

[0022] In a specific implementable scheme, the support assembly further comprises a pushing piece, one side of the hinged frame is hinged to the rotating plate, the pushing piece comprises a sliding ring and a pushing cylinder, the sliding ring is sleeved on the side wall of the support base, the side wall of the support base is provided with a sliding groove for accommodating the sliding ring, the sliding ring is rotationally connected to the support base, the cylinder body of the pushing cylinder is hinged to the sliding ring, the piston rod of the pushing cylinder faces one side of the hinged frame, the piston rod of the pushing cylinder is hinged to one side of the hinged frame, and the connection between the pushing cylinder and the hinged frame is located on the side of the hinged frame close to the rotating plate.

[0023] By adopting the above technical scheme, the arrangement of the pushing piece enables the hinged frame to move in a large range in the horizontal direction, thereby expanding the scanning range of the radar detection device. Specifically, the cooperation of the sliding ring and the pushing cylinder realizes accurate control of the hinged frame, enabling the radar to quickly switch beams in different directions, enhancing the flexibility and adaptability of the system, and at the same time, this design also simplifies the mechanical structure, reduces the maintenance difficulty, and improves the reliability and service life of the system.

[0024] In a specific implementable scheme, when the fixed frame and the heat dissipation frame are connected, the side wall of the fixed frame is fitted with the side wall of the heat dissipation frame.

[0025] By adopting the above technical scheme, external dust and moisture are effectively prevented from entering the inside of the device, the sealing performance and protection performance of the device are improved, and it is ensured that the radar detection member can still normally operate under harsh environmental conditions.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The low-altitude target detection device based on the X-band phased radar is designed to realize high integration and modular design of the low-altitude target detection device. Specifically, the heat dissipation mechanism, the TR module, the difference network, the beam control circuit, and the frequency synthesizer in the control assembly cooperate with each other to improve the signal processing capability and the detection precision. The TR module is responsible for signal transmission and reception, and the difference network realizes signal synthesis and processing to improve the signal-to-noise ratio and the anti-interference capability. The frequency synthesizer generates stable radio frequency signals to ensure the reliability and consistency of the system. The device adopts a detachable design, which facilitates quick replacement and maintenance of key components such as the TR module, and improves the maintenance efficiency and reliability of the system.

[0028] 2. The low-altitude target detection device based on the X-band phased radar is designed to realize quick disassembly and assembly of the fixed frame through the design of the plug-in block and the connecting rod, which facilitates replacement and maintenance of the radar detection member. The inclined surface design of the plug-in block allows it to automatically retract during insertion, reducing the operation difficulty and ensuring the reliability of fixation. Overall, the design significantly improves the heat dissipation performance and maintainability of the low-altitude target detection device.

[0029] 3. The low-altitude target detection device based on the X-band phased radar is designed with multiple heat dissipation fins parallel to each other and leaving gaps between them, which helps air circulation and accelerates heat dissipation, thereby reducing the internal temperature of the radar and ensuring stable operation of the equipment and prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application.

[0031] Figure 2 is a schematic diagram of the support seat in the embodiment.

[0032] Figure 3 is a cross-sectional view of the heat dissipation frame in the embodiment.

[0033] Figure 4 is Figure 3 is an enlarged view of A in

[0034] Explanation of reference signs: 1, support assembly; 11, support seat; 111, placing groove; 112, ring groove; 113, sliding groove; 12, rotating plate; 13, rotating piece; 131, rotating motor; 132, rotating rod; 14, hinged frame; 15, pushing piece; 151, sliding ring; 152, pushing cylinder; 2, control assembly; 21, heat dissipation mechanism; 211, heat dissipation frame; 2111, containing groove; 212, partition; 213, heat dissipation piece; 2131, heat dissipation fin; 214, fan; 22, TR module; 23, sum-difference network; 24, beam control circuit; 25, frequency synthesizer; 3, fixing assembly; 31, fixing frame; 311, slot; 32, mounting piece; 321, plug-in block; 322, first spring; 323, second spring; 324, connecting rod. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application is further described in detail.

[0036] The embodiment of the present application discloses a low-altitude target detection device based on X-band phased radar.

[0037] Refer to Figure 1 A low-altitude target detection device based on X-band phased radar comprises a support assembly 1, a control assembly 2 and a fixing assembly 3, the control assembly 2 is arranged on the support assembly 1, and the fixing assembly 3 is arranged on the control assembly 2.

[0038] Refer to Figure 1 and Figure 2The supporting assembly 1 comprises a supporting base 11, a rotating plate 12, a rotating part 13, a hinged frame 14 and a pushing part 15. In the embodiment, the supporting base 11 is in a cylindrical shape, the rotating plate 12 is located on the top of the supporting base 11 and is rotationally connected to the supporting base 11, the rotating axis of the rotating plate 12 coincides with the axis of the supporting base 11, the rotating part 13 comprises a rotating motor 131 and a rotating rod 132, a placing groove 111 for accommodating the rotating motor 131 is formed in the middle of the top of the supporting base 11, the shell of the rotating motor 131 is fixedly connected to the supporting base 11 through screws, the output shaft of the rotating motor 131 is welded to the middle of the rotating plate 12, the rotating motor 131 drives the rotating plate 12 to rotate, the rotating rod 132 is located on the side of the rotating plate 12 close to the supporting base 11, the rotating rod 132 is arranged perpendicularly to the rotating plate 12, one end of the rotating rod 132 is welded to the rotating plate 12, the top wall of the supporting base 11 is provided with an annular groove 112 for the sliding of the rotating rod 132, the hinged frame 14 is located on the side of the rotating plate 12 away from the supporting base 11, one side of the hinged frame 14 is hinged to the rotating plate 12, the pushing part 15 comprises a sliding ring 151 and a pushing cylinder 152, the sliding ring 151 is sleeved to the side wall of the supporting base 11, and the side wall of the supporting base 11 is provided with a sliding groove 113 for accommodating the sliding ring 151, the sliding ring 151 is rotationally connected to the supporting base 11, the cylinder body of the pushing cylinder 152 is hinged to the sliding ring 151, the piston rod of the pushing cylinder 152 is directed to the side of the hinged frame 14, the piston rod of the pushing cylinder 152 is hinged to the side of the hinged frame 14, the connecting part of the pushing cylinder 152 and the hinged frame 14 is located on the side of the hinged frame 14 close to the rotating plate 12, and the connecting part of the pushing cylinder 152 and the hinged frame 14 is located on the side of the hinged frame 14 close to the rotating plate 12, and the connecting part of the pushing cylinder 152 and the hinged frame 14 is located on the side of the hinged frame 14 close to the rotating plate 12.

[0039] Referring to Figure 1 and Figure 3, the control assembly 2 comprises a heat dissipation mechanism 21, a TR module 22, a difference network 23, a beam control circuit 24 and a frequency synthesizer 25, the heat dissipation mechanism 21 comprises a heat dissipation frame 211, two partitions 212, two heat dissipation pieces 213 and four fans 214, the heat dissipation frame 211 is a rectangular frame, the heat dissipation frame 211 is fixedly connected to the hinged frame 14 through screws, the two partitions 212 are located in the heat dissipation frame 211, and the partitions 212 are arranged along the depth direction of the heat dissipation frame 211; the two partitions 212 are parallel to each other, the partitions 212 are fixedly connected to the heat dissipation frame 211 through screws, and the two partitions 212 sequentially divide the interior of the heat dissipation frame 211 into a heat dissipation cavity, a control cavity and a heat dissipation cavity along the depth direction perpendicular to the heat dissipation frame 211; the heat dissipation piece 213 corresponds to the heat dissipation cavity in a one-to-one manner, the heat dissipation piece 213 comprises a plurality of heat dissipation fins 2131, the plurality of heat dissipation fins 2131 are parallel to each other, and gaps are left between the plurality of heat dissipation fins 2131; the heat dissipation fins 2131 are fixedly connected to the heat dissipation frame 211 through screws, and the four fans 214 are divided into two groups; the two groups of fans 214 correspond to the heat dissipation cavities in a one-to-one manner, one fan 214 of a group of fans 214 close to the same heat dissipation cavity is embedded on the partition 212, and the fan 214 is fixedly connected to the partition 212 through screws; the other fan 214 is embedded on the side wall of the heat dissipation frame 211 opposite to the partition 212, and the fan 214 is fixedly connected to the heat dissipation frame 211 through screws; and the two fans 214 in the same group correspond to each other; the fan 214 is used for accelerating air flow and further improving heat dissipation efficiency; the fan 214 is selected to be an axial flow fan of a mute design, the rated power is 10W, and the maximum air volume is 80CFM; for some extreme high-temperature environments, a fan with higher power, such as a model with a maximum air volume of 120CFM and a power of 15W, can be used.

[0040] With reference to Figure 1 and Figure 3 , the TR module 22 is located in the control cavity, the TR module 22 is composed of a transmitting unit and a receiving unit, and is respectively responsible for signal transmission and reception; the difference network 23 is connected to the TR module 22 through wires to realize signal synthesis and processing; the difference network 23 adopts a microstrip line structure, the insertion loss is less than 0.5dB, and the standing wave ratio is less than 1.2; the microstrip line structure is simple and has low cost, and is suitable for most application scenarios; if higher performance is required, a waveguide structure or a strip line structure can be used, and the two structures can provide better signal transmission quality and lower insertion loss; the TR module 22 transmits radio frequency signals and receives echo signals reflected back; the echo signals are synthesized through the difference network 23 to form the final detection result; the difference network 23 integrates the signals of the TR module 22 together, eliminates interference and improves the signal-to-noise ratio.

[0041] With reference to Figure 1 and Figure 3The beam control circuit 24 is integrated in the main controller, and the beam control circuit 24 is electrically connected with the TR module 22 through the controller. The beam control circuit 24 realizes the direction control of the beam by adjusting the working state of each TR module 22. The beam control circuit 24 uses an FPGA chip, supports high-speed signal processing, and the delay time is not more than 1 microsecond. The FPGA chip has high flexibility and programmability, and can be customized according to different application requirements. In addition, a DSP (digital signal processor) or an ARM architecture processor can also be selected to improve the computing power and real-time performance. The beam control circuit 24 dynamically adjusts the phase of each TR module 22 according to the preset scanning mode, realizes the accurate control of the beam pointing, and this process enables the radar to quickly switch the beam in different directions, thereby realizing the all-around coverage. The frequency synthesizer 25 is fixedly connected to the beam control circuit 24 through a screw. When the radar starts, the frequency synthesizer 25 generates a radio frequency signal of a specified frequency, which is distributed to the TR module 22 through the beam control circuit 24. The frequency synthesizer 25 selects a PLL phase-locked loop oscillator, and the output frequency stability is better than ±1ppm. The PLL phase-locked loop oscillator has high precision and stability, and can ensure that the generated radio frequency signal has good quality. The TR module 22, the difference network 23, the beam control circuit 24 and the frequency synthesizer 25 form the radar detection member. During the whole process, the heat dissipation fins 2131 and the fan 214 work cooperatively to ensure that the internal temperature of the radar is kept within a safe range, which not only improves the stability and service life of the equipment, but also reduces the risk of failure caused by overheating.

[0042] Referring to Figure 1 , Figure 3 and Figure 1The fixed assembly 3 comprises a fixed frame 31 and a mounting piece 32, the radar detection piece is located in the fixed frame 31, the radar detection piece is fixedly connected to the fixed frame 31 through a screw, the heat dissipation frame 211 is closed on the side close to the hinged frame 14, the mounting piece 32 comprises two plug blocks 321, two first springs 322, at least two second springs 323 and two connecting rods 324, the two plug blocks 321 are located in the control cavity, and the two plug blocks 321 are symmetrically distributed along the axis of the control cavity, and the plug block 321 corresponds to the two side walls opposite to the heat dissipation frame 211 one by one, the heat dissipation frame 211 is provided with two containing grooves 2111 for containing the plug blocks 321 in the control cavity, the plug block 321 is slidably connected to the heat dissipation frame 211, and the two plug blocks 321 move towards or away from each other, the plug block 321 is inclined away from the bottom wall of the heat dissipation frame 211, and the inclined surfaces of the two plug blocks 321 are inclined towards each other from the partition plate 212 to the bottom of the heat dissipation frame 211, the first spring 322 corresponds to the plug block 321 one by one, the first spring 322 is located in the containing groove 2111, the first spring 322 is arranged along the sliding direction of the plug block 321, one end of the first spring 322 is welded to the plug block 321, and the other end is welded to the heat dissipation frame 211, the side wall of the fixed frame 31 is provided with a plug slot 311 for inserting the plug block 321, so that the fixed frame 31 and the heat dissipation frame 211 are connected, when the fixed frame 31 and the heat dissipation frame 211 are connected, the side wall of the fixed frame 31 is attached to the side wall of the heat dissipation frame 211, in the embodiment, the number of the second springs 323 is two, the two second springs 323 are located on the two side walls opposite to the bottom wall of the heat dissipation frame 211 respectively, the second spring 323 is located close to the control cavity, the setting direction of the second spring 323 is consistent with the setting direction of the heat dissipation frame 211, one end of the second spring 323 is welded, when the fixed frame 31 is connected with the heat dissipation frame 211, the fixed frame 31 abuts against the second spring 323, and the second spring 323 is compressed.

[0043] With reference to Figure 3 and Figure 4 Figure 3 Figure 4, the connecting rod 324 is provided in the direction consistent with the axis direction of the heat dissipation frame 211, one end of the connecting rod 324 is arranged in the fixing frame 31 and extends into the slot 311, the connecting rod 324 is elastically and slidably connected to the fixing frame 31, the sliding direction of the connecting rod 324 is parallel to the axis direction of the heat dissipation frame 211, when the fixing frame 31 and the heat dissipation frame 211 need to be connected, the fixing frame 31 is inserted into the control cavity, in this process, the plug 321 is located in the accommodating groove 2111, the first spring 322 is compressed, until the fixing frame 31 is located in the control cavity, the first spring 322 restores the deformation, the plug 321 is inserted into the slot 311, and the fixing frame 31 and the heat dissipation frame 211 can be connected; when the fixing frame 31 and the heat dissipation frame 211 need to be separated, the connecting rod 324 is pushed, the plug 321 is pushed by the connecting rod 324, and the plug 321 moves away from the fixing frame 31, until the plug 321 is located in the accommodating groove 2111, and the fixing frame 31 can be taken out.

[0044] The implementation principle of the low-altitude target detection device based on the X-band phased radar is as follows: when the low-altitude target detection device based on the X-band phased radar needs to be used, first, the person starts the pushing piece 15, the hinged frame 14 can be moved to a suitable position, then, according to the actual situation, a suitable radar detection piece is selected, the fixing frame 31 is inserted into the control cavity, in this process, the plug 321 is located in the accommodating groove 2111, the first spring 322 is compressed, until the fixing frame 31 is located in the control cavity, the first spring 322 restores the deformation, the plug 321 is inserted into the slot 311, and the fixing frame 31 and the heat dissipation frame 211 can be connected, then, the low-altitude target detection device based on the X-band phased radar can be used, and in the working process, the heat dissipation mechanism 21 is started to dissipate heat of the device.

[0045] When the radar detection piece needs to be replaced, the connecting rod 324 is pushed, the plug 321 is pushed by the connecting rod 324, and the plug 321 moves away from the fixing frame 31, until the plug 321 is located in the accommodating groove 2111, and the fixing frame 31 can be taken out, so that the radar detection piece can be replaced.

[0046] The above are preferred embodiments of the application, and are not intended to limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A low-altitude target detection device based on X-band phased array radar, characterized in that: The utility model provides a radar device, including support component (1), control component (2) and fixed component (3), support component (1) includes support seat (11) and articulated frame (14), articulated frame (14) is connected to support seat (11), control component (2) includes heat dissipation mechanism (21), TR module (22) and difference network (23), beam control circuit (24) and frequency synthesizer (25), heat dissipation mechanism (21) includes heat dissipation frame (211), heat dissipation frame (211) is connected to articulated frame (14), and difference network (23) is connected to TR module (22), realizes the synthesis and processing of signal, beam control circuit (24) is integrated in main controller, and beam control circuit (24) is electrically connected with TR module (22), realizes the direction control of beam, and frequency synthesizer (25) is connected to beam control circuit (24), when radar starts, frequency synthesizer (25) generates the radio frequency signal of specified frequency, and TR module (22), difference network (23), beam control circuit (24) and frequency synthesizer (25) form radar detection piece; Fixed component (3) includes fixed frame (31), and radar detection piece is connected in fixed frame (31), and fixed frame (31) is detachably connected in heat dissipation frame (211).

2. The low-altitude target detection device based on X-band phased radar according to claim 1, characterized in that: Heat dissipation mechanism (21) still includes two baffle (212), two baffle (212) are connected in heat dissipation frame (211), and baffle (212) sets along the depth direction of heat dissipation frame (211), and two baffle (212) are parallel to each other, and two baffle (212) divide the inside of heat dissipation frame (211) in turn along the depth direction perpendicular to heat dissipation frame (211) into heat dissipation chamber, control chamber and heat dissipation chamber, and fixed frame (31) is located in control chamber, The fixing assembly (3) further comprises a mounting piece (32), the mounting piece (32) comprises two insertion blocks (321), two first springs (322) and two connecting rods (324), the two insertion blocks (321) are located in the control cavity, the two insertion blocks (321) correspond to the two side walls opposite to the heat dissipation frame (211) one by one, the heat dissipation frame (211) is provided with two containing grooves (2111) for containing the insertion blocks (321) in the control cavity, the insertion blocks (321) are elastically and slidably connected to the heat dissipation frame (211), the two insertion blocks (321) move towards or away from each other, the insertion blocks (321) are inclined away from the bottom side of the heat dissipation frame (211), the inclined surfaces of the two insertion blocks (321) are inclined towards each other from the partition plate (212) to the bottom of the heat dissipation frame (211), the sidewall of the fixing frame (31) is provided with an insertion groove (311) for inserting the insertion blocks (321), the connecting rods (324) correspond to the insertion blocks (321) one by one, the setting direction of the connecting rods (324) is consistent with the axis direction of the heat dissipation frame (211), one end of the connecting rods (324) penetrates through the side of the fixing frame (31) close to the TR module (22) and extends into the insertion groove (311), the connecting rods (324) are elastically and slidably connected to the fixing frame (31), the sliding direction of the connecting rods (324) is parallel to the axis direction of the heat dissipation frame (211), and the connecting rods (324) are used for driving the insertion blocks (321) to move.

3. The low-altitude target detection device based on X-band phased radar according to claim 2, characterized in that: The heat dissipation frame (211) is closed on the side close to the hinged frame (14); The mounting piece (32) further comprises at least two second springs (323), the two second springs (323) are located on the two side walls opposite to the bottom wall of the heat dissipation frame (211), the second springs (323) are located in the control cavity, the setting direction of the second springs (323) is consistent with the axis direction of the heat dissipation frame (211), one end of the second springs (323) is connected to the heat dissipation frame (211), when the fixing frame (31) is connected to the heat dissipation frame (211), the fixing frame (31) abuts against the other end of the second springs (323), and the second springs (323) are compressed.

4. The low-altitude target detection device based on X-band phased radar according to claim 2, characterized in that: The heat dissipation mechanism (21) further comprises two heat dissipation pieces (213), the heat dissipation pieces (213) correspond to the heat dissipation cavities one by one, the heat dissipation pieces (213) comprise a plurality of heat dissipation fins (2131), the heat dissipation fins (2131) are parallel to each other, gaps are left between the heat dissipation fins (2131), and the heat dissipation fins (2131) are connected to the heat dissipation frame (211).

5. The low-altitude target detection device based on X-band phased radar according to claim 4, characterized in that: The heat dissipation mechanism (21) further comprises four fans (214), the four fans (214) are divided into two groups, and the two groups of fans (214) correspond to the heat dissipation cavities one by one; one of the fans (214) in the same group of fans (214) near the same heat dissipation cavity is embedded on the partition plate (212), and the other fan (214) is embedded on the side wall of the heat dissipation frame (211) opposite to the partition plate (212); and the two fans (214) in the same group correspond to each other.

6. The low-altitude target detection device based on X-band phased radar according to claim 1, characterized in that: The support assembly (1) further comprises a rotating plate (12) and a rotating piece (13), the rotating plate (12) is rotationally connected to the top of the support base (11), the rotating piece (13) is connected to the support base (11), the rotating piece (13) is connected with the rotating plate (12) to drive the rotating plate (12) to rotate, and the hinged frame (14) is connected to the top of the rotating plate (12).

7. The low-altitude target detection device based on X-band phased radar according to claim 6, characterized in that: The support assembly (1) further comprises a pushing piece (15), one side of the hinged frame (14) is hinged to the rotating plate (12), the pushing piece (15) comprises a sliding ring (151) and a pushing cylinder (152), the sliding ring (151) is sleeved on the side wall of the support base (11), the side wall of the support base (11) is provided with a sliding groove (113) for accommodating the sliding ring (151), the sliding ring (151) is rotationally connected to the support base (11), the cylinder body of the pushing cylinder (152) is hinged to the sliding ring (151), the piston rod of the pushing cylinder (152) faces one side of the hinged frame (14), the piston rod of the pushing cylinder (152) is hinged to one side of the hinged frame (14), and the connection between the pushing cylinder (152) and the hinged frame (14) is located on the side of the hinged frame (14) close to the rotating plate (12).

8. The low-altitude target detection device based on X-band phased radar according to claim 2, characterized in that: When the fixed frame (31) and the heat dissipation frame (211) are connected, the side wall of the fixed frame (31) is attached to the side wall of the heat dissipation frame (211).

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