Digital receiving device based on radar frequency conversion

Abstract

The invention relates to a digital receiving device based on radar frequency conversion, and belongs to the technical field of wireless communication, the digital receiving device comprises a base, the top of the base is provided with a fixing plate, the upper side of the fixing plate is fixedly provided with a mounting plate, the top of the mounting plate is fixedly connected with a receiving device body, and an adjusting mechanism is arranged between the fixing plate and the base. A cleaning mechanism is arranged on the outer side of the receiving device body; the adjusting mechanism comprises a first motor, a mounting shaft is mounted on an output shaft of the first motor in a transmission mode, a sleeve is connected to the outer side of the mounting shaft in a sleeving mode, a guide block is arranged between the sleeve and the mounting shaft, and a lifting mechanism is arranged on the outer side of the sleeve. The digital receiving device based on radar frequency conversion solves the problems that the height of the receiver body of an existing digital receiver cannot be adjusted, the use convenience is low, meanwhile, the receiver body is inconvenient to clean, and the signal receiving stability of the receiver body is affected.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, in particular to a digital receiving device based on radar frequency conversion. Background Art

[0002] With the rapid development of communication technology, communication systems have gradually transitioned from analog communication systems to digital communication systems. This transition not only improves the reliability and stability of communication, but also promotes the miniaturization and intelligence of communication equipment. As an important part of the digital communication system, digital receiving technology is becoming increasingly important. The theoretical basis of digital receiving technology is the digital generation and detection theory of signals. This theory provides a solid theoretical basis for the design and implementation of digital receivers. By adopting digital signal processing technology, digital receivers can achieve accurate demodulation, filtering, synchronization and data judgment of received signals, thereby ensuring the accuracy and reliability of communication. A digital receiver is a receiver that uses digital devices and digital processing methods to process intermediate frequency signals after sampling. It overcomes the disadvantage of inconsistent parameters of the in-phase and orthogonal branches of the demodulator composed of analog devices, and improves the performance and stability of the receiver. Digital receivers receive and process radar signals to obtain signal characteristic parameters, including frequency, pulse width, TOA (time of arrival), power, and azimuth arrival angle, etc. They are mainly used in radar intelligence, electronic countermeasures, simulation training and other fields.

[0003] In the prior art, the announcement number CN220475769U discloses a high anti-interference digital receiver, including a hollow fixed chassis, the upper surface of the hollow fixed chassis is provided with four screw positioning holes, the inner wall of the hollow fixed chassis is fixedly connected with a carrier plate, and the upper surface of the carrier plate is fixedly connected with a circular block. The high anti-interference digital receiver is provided with a hollow fixed chassis and four screw positioning holes are provided on the hollow fixed chassis. The staff can fix the hollow fixed chassis to the platform through the screws, which not only makes the receiver body more solid, but also has a relatively smaller volume compared to the original technology; by arranging two triangular clamps on the load-bearing column, when the staff rotates the receiver body, the two triangular clamps can automatically clamp into the corresponding triangular clamping grooves under the coordination of the reset spring to quickly position the load-bearing column, which is convenient for the staff to adjust the orientation of the receiver body, reflecting the stability and flexibility of the device as a whole.

[0004] Although the above-mentioned digital receiver can be adjusted in direction during use, the height of the receiver body cannot be adjusted, and the convenience of use is low. At the same time, it is not convenient to clean the receiver body, which affects the signal reception stability of the receiver body. Therefore, a digital receiving device based on radar frequency conversion is proposed to solve the above-mentioned problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a digital receiving device based on radar frequency conversion, which has the advantages of flexible adjustment and easy cleaning. It solves the problem that the existing digital receiver cannot adjust the height of the receiver body, is less convenient to use, and is not convenient to clean the receiver body, which affects the signal reception stability of the receiver body.

[0006] To achieve the above object, the present invention provides the following technical solution: a digital receiving device based on radar frequency conversion, comprising a base, a fixing plate is arranged on the top of the base, a mounting plate is fixedly installed on the upper side of the fixing plate, a receiving device body is fixedly connected to the top of the mounting plate, an adjustment mechanism is arranged between the fixing plate and the base, and a cleaning mechanism is arranged on the outer side of the receiving device body;

[0007] The adjusting mechanism comprises a first motor, a mounting shaft is drivingly mounted on the output shaft of the first motor, a sleeve is sleeved on the outer side of the mounting shaft, a guide block is arranged between the sleeve and the mounting shaft, a lifting mechanism is arranged on the outer side of the sleeve, the lifting mechanism comprises an electric push rod, a mounting block is fixedly mounted on the output shaft of the electric push rod, the mounting block is rotatably connected to the sleeve, and the upper end of the sleeve is fixedly connected to the fixing plate;

[0008] The cleaning mechanism includes a fixed box, a second motor is fixedly installed inside the fixed box, a screw rod is transmission-installed on the output shaft of the second motor, a threaded sleeve is threadedly installed on the outer side of the screw rod, a vertical rod is connected to the outer side of the threaded sleeve, and a cleaning plate is fixedly installed on one end of the vertical rod close to the receiving device body.

[0009] Furthermore, the first motor is fixedly mounted on the top of the base, the lower end of the mounting shaft is rotatably connected to the inside of the base, and the upper end of the mounting shaft extends to the upper side of the base.

[0010] Furthermore, the guide block is fixedly connected to the inner wall of the sleeve, and the guide block is slidably matched with the outer wall of the mounting shaft. The outer wall of the mounting shaft is provided with a movable groove adapted to the guide block. The number of the guide blocks and the movable grooves is two, and the two guide blocks and movable grooves are symmetrically distributed on the left and right sides of the mounting shaft.

[0011] Furthermore, a first spur gear is fixedly mounted on the output shaft of the first motor, a second spur gear is fixedly mounted on the outer wall of the mounting shaft, the first spur gear and the second spur gear are both located inside the base, and the first spur gear and the second spur gear are kept in meshing relationship.

[0012] Furthermore, the electric push rod is fixedly mounted on the top of the base, a bearing is rotatably mounted on the outer wall of the sleeve, and the outer side of the bearing is fixedly connected to the mounting block.

[0013] Furthermore, the fixed box is fixedly connected to the bottom of the fixed plate, the lower end of the screw rod is rotatably connected to the inner bottom wall of the fixed box, and the upper end of the screw rod is rotatably connected to the inner top wall of the fixed box.

[0014] Furthermore, a first bevel gear is fixedly mounted on the output shaft of the second motor, a second bevel gear is fixedly mounted on the outer side of the screw rod, and the first bevel gear and the second bevel gear are kept in meshing.

[0015] Furthermore, a connecting block is fixedly connected between the threaded sleeve and the vertical rod, the upper end of the vertical rod passes through the fixed box and extends to the upper side of the fixed plate, the cleaning plate is made of sponge, and the cleaning plate corresponds to the receiving end of the receiving device body.

[0016] Furthermore, a sliding block is fixedly connected to the outer wall of the vertical rod, a guide rail is fixedly installed inside the fixed box, and the sliding block is slidably connected to the inner side of the guide rail.

[0017] Further, the receiving device body includes a control module, a receiving module, a conversion module and a communication module, the output end of the receiving module is connected to the input end of the conversion module, the output end of the conversion module is connected to the input end of the control module, and the output end of the control module is connected to the input end of the communication module;

[0018] The receiving module is used to receive radar signals and send them to the conversion module. The conversion module performs digital signal processing on the received radar signals, extracts target information and sends it to the control module. The control module sends the target information to the terminal through the communication module, and the terminal detects, tracks and identifies the target.

[0019] The digital signal processing algorithm includes but is not limited to a channelized receiving algorithm, a target detection algorithm, a target tracking algorithm and a target recognition algorithm.

[0020] Compared with the prior art, the present invention provides a digital receiving device based on radar frequency conversion, which has the following beneficial effects:

[0021] 1. When the digital receiving device based on radar frequency conversion is used, the first motor is started to drive the first flat gear and the second flat gear to transmit, and the installation shaft is driven to rotate. The installation shaft can drive the sleeve to rotate through the guide block, and at the same time drive the fixed plate to rotate, thereby driving the receiving device body to rotate, so as to adjust the orientation of the receiving device body. In addition, the electric push rod is started to drive the installation block to move up and down, and the installation block will drive the sleeve to move up and down through the bearing to adjust the height of the receiving device body.

[0022] 2. The digital receiving device based on radar frequency conversion starts the second motor to drive the first bevel gear and the second bevel gear, and drives the lead screw and the threaded sleeve to drive, thereby driving the vertical rod to move up and down, so that the cleaning plate moves up and down to clean the receiving end of the receiving device body. Through the above arrangement, the problem that the existing digital receiver cannot adjust the height of the receiver body, the convenience of use is low, and it is not convenient to clean the receiver body, which affects the signal reception stability of the receiver body is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a digital receiving device based on radar frequency conversion of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the regulating mechanism of the digital receiving device based on radar frequency conversion of the present invention;

[0025] Figure 3 It is a structural stereogram of the installation axis of the digital receiving device based on radar frequency conversion of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a cleaning mechanism of a digital receiving device based on radar frequency conversion of the present invention;

[0027] Figure 5 The system block diagram of the receiving device body of the digital receiving device based on radar frequency conversion of the present invention.

[0028] In the figure: 1, base; 2, fixing plate; 3, mounting plate; 4, receiving device body; 5, first motor; 6, first flat gear; 7, second flat gear; 8, mounting shaft; 9, sleeve; 10, guide block; 11, movable groove; 12, electric push rod; 13, mounting block; 14, bearing; 15, fixing box; 16, second motor; 17, first bevel gear; 18, second bevel gear; 19, lead screw; 20, threaded sleeve; 21, connecting block; 22, vertical rod; 23, cleaning plate; 24, slider; 25, guide rail. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 5The digital receiving device based on radar frequency conversion in this embodiment includes a base 1, a fixing plate 2 is arranged on the top of the base 1, a mounting plate 3 is fixedly installed on the upper side of the fixing plate 2, and a receiving device body 4 is fixedly connected to the top of the mounting plate 3.

[0031] Among them, the receiving device body 4 includes a control module, a receiving module, a conversion module and a communication module. The output end of the receiving module is connected to the input end of the conversion module, the output end of the conversion module is connected to the input end of the control module, and the output end of the control module is connected to the input end of the communication module.

[0032] It should be noted that the receiving module is used to receive radar signals and send them to the conversion module. The conversion module performs digital signal processing on the received radar signals, extracts the target information and sends it to the control module. The control module sends the target information to the terminal through the communication module. The terminal detects, tracks and identifies the target. The digital signal processing algorithm includes but is not limited to the channelized receiving algorithm, the target detection algorithm, the target tracking algorithm and the target identification algorithm. When the channelized receiving algorithm is adopted, the entire sampling frequency band is divided into several parallel channel outputs by adopting the channelized filter group, so that the signal can be intercepted and demodulated and analyzed no matter when and which channel it appears; when the target detection algorithm is adopted, the radar signal is preprocessed and feature extracted by using threshold detection, correlation detection and matched filtering methods; when the target tracking algorithm is adopted, the radar signal state is tracked by using the Kalman filter prediction and update process, or the particle filter is used to randomly sample and weight the target state to achieve radar signal tracking; when the target identification algorithm is adopted, the radar signal is feature extracted and pattern matched by adopting the feature extraction and pattern recognition methods to achieve classification and identification of the radar signal.

[0033] In this embodiment, an adjustment mechanism is provided between the fixed plate 2 and the base 1, and the adjustment mechanism includes a first motor 5, the first motor 5 is fixedly mounted on the top of the base 1, and a mounting shaft 8 is transmission-mounted on the output shaft of the first motor 5, the lower end of the mounting shaft 8 is rotationally connected to the inside of the base 1, the upper end of the mounting shaft 8 extends to the upper side of the base 1, a sleeve 9 is sleeved on the outer side of the mounting shaft 8, the upper end of the sleeve 9 is fixedly connected to the fixed plate 2, and a guide block 10 is provided between the sleeve 9 and the mounting shaft 8.

[0034] Among them, the guide block 10 is fixedly connected to the inner wall of the sleeve 9, and the guide block 10 is slidably matched with the outer wall of the mounting shaft 8. The outer wall of the mounting shaft 8 is provided with a movable groove 11 adapted to the guide block 10. The number of guide blocks 10 and movable grooves 11 is two, and the two guide blocks 10 and movable grooves 11 are symmetrically distributed on the left and right sides of the mounting shaft 8.

[0035] It should be noted that a first spur gear 6 is fixedly mounted on the output shaft of the first motor 5, and a second spur gear 7 is fixedly mounted on the outer wall of the mounting shaft 8. Both the first spur gear 6 and the second spur gear 7 are located inside the base 1, and the first spur gear 6 and the second spur gear 7 remain meshed.

[0036] In this embodiment, a lifting mechanism is provided on the outer side of the sleeve 9, and the lifting mechanism includes an electric push rod 12, which is fixedly installed on the top of the base 1. A mounting block 13 is fixedly installed on the output shaft of the electric push rod 12, and the mounting block 13 is rotatably connected to the sleeve 9. A bearing 14 is rotatably installed on the outer wall of the sleeve 9, and the outer side of the bearing 14 is fixedly connected to the mounting block 13.

[0037] In this embodiment, a cleaning mechanism is provided on the outside of the receiving device body 4, and the cleaning mechanism includes a fixed box 15, which is fixedly connected to the bottom of the fixed plate 2. A second motor 16 is fixedly installed inside the fixed box 15, and a screw rod 19 is transmission-installed on the output shaft of the second motor 16. The lower end of the screw rod 19 is rotatably connected to the inner bottom wall of the fixed box 15, and the upper end of the screw rod 19 is rotatably connected to the inner top wall of the fixed box 15. A threaded sleeve 20 is threadedly installed on the outer side of the screw rod 19, and a vertical rod 22 is connected to the outer side of the threaded sleeve 20. A cleaning plate 23 is fixedly installed on one end of the vertical rod 22 close to the receiving device body 4.

[0038] Among them, a connecting block 21 is fixedly connected between the threaded sleeve 20 and the vertical rod 22, the upper end of the vertical rod 22 passes through the fixed box 15 and extends to the upper side of the fixed plate 2, the cleaning plate 23 is made of sponge, and the cleaning plate 23 corresponds to the receiving end of the receiving device body 4, a slider 24 is fixedly connected to the outer wall of the vertical rod 22, and a guide rail 25 is fixedly installed inside the fixed box 15, and the slider 24 is slidably connected to the inner side of the guide rail 25.

[0039] It should be noted that a first bevel gear 17 is fixedly mounted on the output shaft of the second motor 16 , and a second bevel gear 18 is fixedly mounted on the outer side of the screw rod 19 , and the first bevel gear 17 and the second bevel gear 18 are kept in meshing engagement.

[0040] The working principle of the above embodiment is:

[0041] When in use, the first motor 5 is started to drive the first flat gear 6 and the second flat gear 7 to transmit, and the installation shaft 8 is driven to rotate. The installation shaft 8 can drive the sleeve 9 to rotate through the guide block 10, and at the same time drive the fixing plate 2 to rotate, thereby driving the receiving device body 4 to rotate, so as to adjust the orientation of the receiving device body 4. In addition, the electric push rod 12 is started to drive the installation block 13 to move up and down, and the installation block 13 will drive the sleeve 9 to move up and down through the bearing 14, so as to adjust the height of the receiving device body 4.

[0042] By starting the second motor 16 to drive the first bevel gear 17 and the second bevel gear 18, and drive the screw rod 19 and the threaded sleeve 20 to drive, the vertical rod 22 is driven to move up and down, so that the cleaning plate 23 moves up and down to clean the receiving end of the receiving device body 4.

[0043] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical methods, and they can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller is a conventional known device, and there is an existing disclosed power connection technology. Therefore, the text will not go into too much detail on its specific structural composition and working principle.

[0044] It should be noted that in this article, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital receiving device based on radar frequency conversion, comprising a base (1), a fixing plate (2) being arranged on the top of the base (1), a mounting plate (3) being fixedly mounted on the upper side of the fixing plate (2), a receiving device body (4) being fixedly connected to the top of the mounting plate (3), characterized in that: An adjustment mechanism is provided between the fixing plate (2) and the base (1), and a cleaning mechanism is provided on the outer side of the receiving device body (4); The adjusting mechanism comprises a first motor (5), a mounting shaft (8) is transmission-mounted on the output shaft of the first motor (5), a sleeve (9) is sleeved on the outer side of the mounting shaft (8), a guide block (10) is arranged between the sleeve (9) and the mounting shaft (8), a lifting mechanism is arranged on the outer side of the sleeve (9), the lifting mechanism comprises an electric push rod (12), a mounting block (13) is fixedly mounted on the output shaft of the electric push rod (12), the mounting block (13) is rotatably connected to the sleeve (9), and the upper end of the sleeve (9) is fixedly connected to the fixing plate (2); The cleaning mechanism comprises a fixed box (15), a second motor (16) is fixedly mounted inside the fixed box (15), a screw rod (19) is transmission-mounted on the output shaft of the second motor (16), a threaded sleeve (20) is threadedly mounted on the outer side of the screw rod (19), a vertical rod (22) is connected to the outer side of the threaded sleeve (20), and a cleaning plate (23) is fixedly mounted on one end of the vertical rod (22) close to the receiving device body (4).

2. The digital receiving device based on radar frequency conversion according to claim 1 is characterized in that: The first motor (5) is fixedly mounted on the top of the base (1), the lower end of the mounting shaft (8) is rotatably connected to the inside of the base (1), and the upper end of the mounting shaft (8) extends to the upper side of the base (1).

3. The digital receiving device based on radar frequency conversion according to claim 1 is characterized in that: The guide block (10) is fixedly connected to the inner wall of the sleeve (9), and the guide block (10) is slidably matched with the outer wall of the installation shaft (8). The outer wall of the installation shaft (8) is provided with a movable groove (11) adapted to the guide block (10). The number of the guide block (10) and the movable groove (11) are both two, and the two guide blocks (10) and the movable groove (11) are symmetrically distributed on the left and right sides of the installation shaft (8).

4. The digital receiving device based on radar frequency conversion according to claim 1 is characterized in that: A first spur gear (6) is fixedly mounted on the output shaft of the first motor (5), and a second spur gear (7) is fixedly mounted on the outer wall of the mounting shaft (8); the first spur gear (6) and the second spur gear (7) are both located inside the base (1), and the first spur gear (6) and the second spur gear (7) are kept in meshing engagement.

5. The digital receiving device based on radar frequency conversion according to claim 1 is characterized in that: The electric push rod (12) is fixedly mounted on the top of the base (1), and a bearing (14) is rotatably mounted on the outer wall of the sleeve (9), and the outer side of the bearing (14) is fixedly connected to the mounting block (13).

6. The digital receiving device based on radar frequency conversion according to claim 1 is characterized in that: The fixed box (15) is fixedly connected to the bottom of the fixed plate (2), the lower end of the screw rod (19) is rotatably connected to the inner bottom wall of the fixed box (15), and the upper end of the screw rod (19) is rotatably connected to the inner top wall of the fixed box (15).

7. The digital receiving device based on radar frequency conversion according to claim 1 is characterized in that: A first bevel gear (17) is fixedly mounted on the output shaft of the second motor (16), a second bevel gear (18) is fixedly mounted on the outer side of the screw rod (19), and the first bevel gear (17) and the second bevel gear (18) are kept in meshing relationship.

8. The digital receiving device based on radar frequency conversion according to claim 1 is characterized in that: A connecting block (21) is fixedly connected between the threaded sleeve (20) and the vertical rod (22); the upper end of the vertical rod (22) penetrates the fixed box (15) and extends to the upper side of the fixed plate (2); the cleaning plate (23) is made of sponge, and the cleaning plate (23) corresponds to the receiving end of the receiving device body (4).

9. The digital receiving device based on radar frequency conversion according to claim 1, characterized in that: A sliding block (24) is fixedly connected to the outer wall of the vertical rod (22), a guide rail (25) is fixedly installed inside the fixed box (15), and the sliding block (24) is slidably connected to the inner side of the guide rail (25).

10. The digital receiving device based on radar frequency conversion according to claim 1, characterized in that: The receiving device body (4) comprises a control module, a receiving module, a conversion module and a communication module, wherein the output end of the receiving module is connected to the input end of the conversion module, the output end of the conversion module is connected to the input end of the control module, and the output end of the control module is connected to the input end of the communication module; The receiving module is used to receive radar signals and send them to the conversion module. The conversion module performs digital signal processing on the received radar signals, extracts target information and sends it to the control module. The control module sends the target information to the terminal through the communication module, and the terminal detects, tracks and identifies the target. The digital signal processing algorithm includes but is not limited to a channelized receiving algorithm, a target detection algorithm, a target tracking algorithm and a target recognition algorithm.

Images