High-resolution radar target recognition device

Abstract

The utility model belongs to the technical field of radars, and particularly relates to a high-resolution radar target recognition device, which comprises a shell, a cylindrical box, a screw rod, an adjusting assembly, a radar signal transmitting unit, a high-resolution signal acquisition unit, a data processing and analyzing unit and a data transmission interface, the radar signal transmitting unit, the high-resolution signal acquisition unit and the data processing and analyzing unit are electrically connected in sequence, and the data transmission interface is connected with the data processing and analyzing unit; the radar signal transmitting unit, the high-resolution signal acquisition unit, the data processing and analyzing unit and the data transmission interface are all arranged in the shell. The device provided by the utility model is reasonable in design, and solves the problems of inconvenient height and inclination angle adjustment and the like caused by signal emission, acquisition, processing, anti-interference and fixed installation modes of an existing device, thereby realizing high-resolution, high-precision and real-time identification of a target and use flexibility.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar technical field especially relates to a high resolution radar target recognition device. BACKGROUND

[0002] In the current radar target recognition field, the existing radar target recognition device has certain limitations. On the one hand, the power adjustment of the traditional radar signal transmitting unit is not flexible enough, and it is difficult to accurately adjust the transmitting power according to different target distances and environmental conditions, resulting in low signal transmission efficiency and affecting the accuracy of subsequent target recognition. On the other hand, the receiving antenna gain of the signal acquisition unit is limited, and the capture ability of the signal acquisition unit for long-distance or weak reflection signals is weak, so that the quality of the radar echo signal obtained is poor, and the resolution is difficult to improve. At the same time, the data processing unit often uses a general processor, and when facing a large amount of complex radar data, the processing speed is slow, which cannot meet the needs of real-time high-resolution target recognition. In addition, the existing device also has shortcomings in electromagnetic shielding, and external electromagnetic interference can easily affect the performance of the device, further reducing the accuracy and stability of target recognition. Moreover, it often adopts a fixed installation mode, which has the disadvantage of not being convenient for lifting and inclination adjustment.

[0003] Therefore, the utility model provides a kind of high resolution radar target recognition device to solve the above problems.

[0004] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context of the present utility model, and should not be taken as an acknowledgement or implication that this information constitutes prior art to the present utility model. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of high resolution radar target recognition device, by optimizing each unit structure design, solve the problems existing in the signal emission, collection, processing, anti-interference and fixed installation mode of the existing device, such as height and inclination adjustment, to realize the high resolution, high accuracy, real-time identification and use flexibility of target.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a kind of high resolution radar target recognition device, including shell, cylindrical box, screw rod, adjusting assembly, radar signal transmitting unit, high resolution signal acquisition unit, data processing and analysis unit and data transmission interface;

[0007] The radar signal transmitting unit, high resolution signal acquisition unit and data processing and analysis unit are electrically connected in sequence, and the data transmission interface is connected with the data processing and analysis unit;The radar signal transmitting unit, high resolution signal acquisition unit, data processing and analysis unit and data transmission interface are all arranged in the shell.

[0008] The screw rod is hingedly mounted at the bottom of the shell, the lifting plate is slidingly mounted in the cylindrical box, and the bottom end of the screw rod is fixedly connected with the lifting plate, and the adjusting assembly is arranged on the cylindrical box and connected with the screw rod and the shell.

[0009] Preferably, the radar signal transmitting unit comprises a power-adjustable transmitting source, a transmitting antenna group connected with the transmitting source, and a power regulating circuit for controlling the power of the transmitting source, and the power regulating circuit is electrically connected with the transmitting source.

[0010] Preferably, the transmitting antenna group is composed of a plurality of antennas of different frequency bands arranged in an array, and each antenna is connected with the transmitting source through a corresponding radio frequency cable.

[0011] Preferably, the high-resolution signal collecting unit comprises a plurality of high-gain receiving antennas, a signal pre-amplifier connected with the high-gain receiving antennas, and an analog-to-digital converter connected with the signal pre-amplifier, the high-gain receiving antennas are used for receiving radar echo signals, the signal pre-amplifier is used for preliminarily amplifying the echo signals, and the analog-to-digital converter is used for converting analog signals into digital signals.

[0012] Preferably, the high-gain receiving antennas are log-periodic antennas, and the spacing between adjacent high-gain receiving antennas is 0.5-1 times the center wavelength of the echo signal.

[0013] Preferably, the data processing and analysis unit comprises a high-speed processing chip, a storage module connected with the high-speed processing chip, and a display driving module connected with the high-speed processing chip, the storage module is used for storing target recognition algorithms and historical data, and the display driving module is used for outputting processing results to an external display device.

[0014] Preferably, an electromagnetic shielding layer is arranged inside the shell, and the electromagnetic shielding layer wraps the radar signal transmitting unit, the high-resolution signal collecting unit, the data processing and analysis unit, and the data transmission interface, so as to reduce external electromagnetic interference.

[0015] Preferably, the data transmission interface comprises one or more of an Ethernet interface, a USB interface, and an optical fiber interface.

[0016] Preferably, the adjusting assembly comprises an internal thread sleeve, a motor, a driving gear, a driven gear, and an electric cylinder, the internal thread sleeve is rotatably mounted on the top inner wall of the cylindrical box, the internal thread sleeve is threadedly sleeved on the outside of the screw rod, the driven gear is fixedly sleeved on the internal thread sleeve, the motor is fixedly mounted on the top of the cylindrical box, the output shaft of the motor extends into the cylindrical box and is fixedly sleeved with the driving gear, the driving gear is engaged with the driven gear, and the bottom of the screw rod and the shell is hingedly mounted with the same electric cylinder arranged in an inclined manner.

[0017] The utility model discloses the beneficial effect is:

[0018] Through adopt above-mentioned technical scheme, the high resolution radar target recognition device of the utility model has following advantages: first, the radar signal emission unit designs the emission source of adjustable power and the emission antenna group of array arrangement, can adjust emission power and frequency band according to need, has improved the coverage of radar signal and the recognition precision, second, high resolution signal acquisition unit adopts multiple high gain receiving antenna and signal preamplifier, effectively enhanced the receiving intensity of radar echo signal, and through analog-digital converter converts analog signal into digital signal, provides reliable foundation for subsequent data processing, third, data processing and analysis unit embeds high speed processing chip and storage module, can fast processing and analysis the radar signal of gathering, and through display drive module will handle result output to external display equipment, is convenient for user real-time viewing and record.

[0019] Through the electromagnetic shielding layer arranged in the shell interior, the outside electromagnetic interference is effectively reduced, the normal operation of the device is guaranteed and the accuracy of data is guaranteed, the height and the inclination angle of the shell are adjusted according to the need through the design of the adjusting assembly, and the flexibility and the practicability of the device are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0021] Figure 1 A kind of high resolution radar target recognition device's three-dimensional structure schematic view is proposed for the utility model;

[0022] Figure 2 For Figure 1 Another perspective structural schematic view;

[0023] Figure 3 The sectional structure schematic view of shell part is proposed for the utility model;

[0024] Figure 4 The structure schematic view of adjusting assembly, screw rod and lifting plate part is proposed for the utility model.

[0025] In the figure: 1, radar signal transmitting unit; 11, transmitting source; 12, transmitting antenna group; 121, independent antenna; 122, radio frequency cable; 13, power regulation circuit; 2, high-resolution signal acquisition unit; 21, high-gain receiving antenna; 22, signal preamplifier; 23, analog-to-digital converter; 3, data processing and analysis unit; 31, high-speed processing chip; 32, storage module; 33, display driving module; 4, data transmission interface; 5, shell; 51, electromagnetic shielding layer; 6, cylindrical box; 7, screw rod; 71, lifting plate; 72, electric cylinder; 8, internal thread sleeve; 81, driven gear; 82, motor; 83, drive gear. DETAILED DESCRIPTION

[0026] The technical scheme of the present application will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0027] REFERENCE Figures 1-4 A high-resolution radar target recognition device, comprising a shell 5, a cylindrical box 6, a screw rod 7, a radar signal transmitting unit 1, a high-resolution signal acquisition unit 2, a data processing and analysis unit 3 and a data transmission interface 4;

[0028] The radar signal transmitting unit 1, the high-resolution signal acquisition unit 2 and the data processing and analysis unit 3 are electrically connected in sequence, the data transmission interface 4 is connected with the data processing and analysis unit 3, and the radar signal transmitting unit 1, the high-resolution signal acquisition unit 2, the data processing and analysis unit 3 and the data transmission interface 4 are all arranged in the shell 5, wherein the radar signal transmitting unit 1 is responsible for transmitting radar signals, the high-resolution signal acquisition unit 2 receives radar echo signals and performs preprocessing, the data processing and analysis unit 3 processes and analyzes the collected data to recognize targets, the data transmission interface 4 is used for outputting processing results, and the shell 5 protects and supports the internal units;

[0029] The screw rod 7 is hingedly installed at the bottom of the shell 5, the lifting plate 71 is slidingly installed in the cylindrical box 6, the bottom end of the screw rod 7 is fixedly connected with the lifting plate 71, the internal thread sleeve 8 is rotatably installed on the top inner wall of the cylindrical box 6, the internal thread sleeve 8 is threadedly sleeved on the outer side of the screw rod 7, the driven gear 81 is fixedly sleeved on the internal thread sleeve 8, the motor 82 is fixedly installed at the top of the cylindrical box 6, the output shaft of the motor 82 extends into the cylindrical box 6 and is fixedly sleeved with the drive gear 83, the drive gear 83 is engaged with the driven gear 81, and the electric cylinder 72 is hingedly installed at the bottom of the shell 5 and the cylindrical box 6 and is arranged in an inclined manner, so that the height and the inclination angle of the shell 5 can be adjusted as required.

[0030] In this embodiment, the power-adjustable transmitting source 11 in the radar signal transmitting unit 1 can accurately adjust the transmitting power according to the actual demand under the control of the power regulating circuit 13, and the transmitting antenna group 12 is composed of a plurality of antennas of different frequency bands arranged in an array, which can widen the signal coverage range and enhance the signal transmitting effect through the cooperative work of different frequency band antennas.

[0031] In this embodiment, the plurality of high-gain receiving antennas 21 of the high-resolution signal collecting unit 2 can effectively capture weak radar echo signals, the signal preamplifier 22 can preliminarily amplify the echo signals to improve the signal strength, and the analog-to-digital converter 23 can convert the analog signals into digital signals for processing.

[0032] In this embodiment, the high-speed processing chip 31, such as an FPGA chip, in the data processing and analysis unit 3 has strong data processing capability and can quickly process a large amount of radar data, the storage module 32 stores target recognition algorithms and historical data to provide operation basis for the processing chip, and the display driving module 33 can output the processing result to an external display device for the convenience of the operator to check.

[0033] In this embodiment, the electromagnetic shielding layer 51 arranged inside the shell 5 can effectively reduce external electromagnetic interference and ensure stable transmission of internal signals, and the data transmission interface 4 contains one or more of an Ethernet interface, a USB interface and an optical fiber interface to meet the data transmission requirements in different scenes.

[0034] The specific implementation modes of the circuits, electronic components and modules involved in the device all adopt the existing technologies, which can be realized by those skilled in the art based on the existing knowledge, and thus will not be described here. The protection scope of the present application does not involve the improvement of software, circuits and methods themselves.

[0035] Working principle: in use, first connect the power supply, drive the driving gear 83 to rotate through the motor 82, drive the driven gear 81 and the inner thread sleeve 8 to rotate, since the inner thread sleeve 8 is threadedly sleeved outside the screw rod 7, the rotation of the inner thread sleeve 8 will drive the screw rod 7 to ascend along its axis, and then drive the lifting plate 71 and the shell 5 to ascend, realizing height adjustment; at the same time, the extension and retraction of the electric cylinder 72 can drive the shell 5 to rotate around the hinge point with the screw rod 7, realizing the adjustment of the inclination angle, which makes the device adapt to different working environments and recognition requirements, improves the flexibility and practicality of the device.

[0036] In use, the radar signal transmitting unit 1 transmits radar signals, the high-resolution signal collecting unit 2 receives and processes radar echo signals, the data processing and analyzing unit 3 processes and analyzes the collected data, and finally the processing results are output to an external display device through the data transmission interface 4 for the operator to view and record. The whole device is compact in structure, perfect in function and has high application value.

[0037] The high-resolution radar target recognition device provided by the utility model is described in detail. The principles and implementation manners of the utility model are described by applying specific examples, and the description of the above examples is only used to help understand the method and core idea of the utility model. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principles of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A high resolution radar target recognition apparatus, characterized by, The radar signal transmitting unit (1), the high-resolution signal collecting unit (2), and the data processing and analysis unit (3) are sequentially electrically connected, and the data transmission interface (4) is connected with the data processing and analysis unit (3); the radar signal transmitting unit (1), the high-resolution signal collecting unit (2), the data processing and analysis unit (3), and the data transmission interface (4) are all arranged in the shell (5). The screw rod (7) is hingedly installed at the bottom of the shell (5), the lifting plate (71) is slidably installed in the cylindrical box (6), and the bottom end of the screw rod (7) is fixedly connected with the lifting plate (71); the adjusting assembly is arranged on the cylindrical box (6) and connected with the screw rod (7) and the shell (5). The radar signal transmitting unit (1) comprises a power-adjustable transmitting source (11), a transmitting antenna group (12) connected with the transmitting source (11), and a power control circuit (13) for controlling the power of the transmitting source (11), wherein the power control circuit (13) is electrically connected with the transmitting source (11).

2. The high resolution radar target recognition apparatus of claim 1, wherein: The transmitting antenna group (12) is composed of a plurality of antennas of different frequency bands arranged in an array, and each antenna is connected with the transmitting source (11) through a corresponding radio frequency cable (122).

3. A high resolution radar target recognition apparatus as claimed in claim 2, characterized in that: The high-resolution signal collecting unit (2) comprises a plurality of high-gain receiving antennas (21), a signal preamplifier (22) connected with the high-gain receiving antennas (21), and an analog-to-digital converter (23) connected with the signal preamplifier (22), wherein the high-gain receiving antennas (21) are used for receiving radar echo signals, the signal preamplifier (22) is used for preliminarily amplifying the echo signals, and the analog-to-digital converter (23) is used for converting analog signals into digital signals.

4. The high resolution radar target recognition apparatus of claim 1, wherein: The high-gain receiving antennas (21) are logarithmic-periodic antennas, and the spacing between adjacent high-gain receiving antennas (21) is 0.5-1 times the center wavelength of the echo signal.

5. A high resolution radar target recognition apparatus as claimed in claim 4, characterized in that: The data processing and analysis unit (3) comprises a high-speed processing chip (31), a storage module (32) connected with the high-speed processing chip (31), and a display driving module (33) connected with the high-speed processing chip (31), wherein the storage module (32) is used for storing target identification algorithms and historical data, and the display driving module (33) is used for outputting processing results to an external display device.

6. The high resolution radar target recognition apparatus of claim 1, wherein: An electromagnetic shielding layer (51) is arranged inside the shell (5), and the electromagnetic shielding layer (51) wraps the radar signal transmitting unit (1), the high-resolution signal collecting unit (2), the data processing and analysis unit (3), and the data transmission interface (4), so as to reduce external electromagnetic interference.

7. The high resolution radar target recognition apparatus of claim 1, wherein: The data transmission interface (4) comprises one or more of an Ethernet interface, a USB interface, and an optical fiber interface.

8. The high resolution radar target recognition apparatus of claim 1, wherein: ​ 9. The high resolution radar target recognition apparatus of claim 1, wherein: The adjusting assembly comprises an inner thread sleeve (8), a motor (82), a driving gear (83), a driven gear (81) and an electric cylinder (72), the inner thread sleeve (8) is rotatably installed on the inner wall of the top of the cylindrical box (6), the inner thread sleeve (8) is threadedly sleeved outside the screw rod (7), the driven gear (81) is fixedly sleeved on the inner thread sleeve (8), the motor (82) is fixedly installed on the top of the cylindrical box (6), the output shaft of the motor (82) extends into the cylindrical box (6) and is fixedly sleeved with the driving gear (83), the driving gear (83) is engaged with the driven gear (81), and the screw rod (7) and the bottom of the shell (5) are hingedly installed with the same electric cylinder (72) which is arranged in an inclined manner.

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