High-precision microwave detection device and method

Abstract

The invention provides a high-precision microwave detection device and method, and relates to the technical field of microwave detection, the device comprises a rotating disc and a rotating shaft used for driving the rotating disc to rotate, the rotating disc is provided with a slideway and a function part arranged on the slideway, and the slideway extends towards the direction of the rotating shaft; the function part comprises a sliding piece used for sliding along the sliding way and a detection cylinder connected with the sliding piece through a spring. The multiple groups of detection cylinders are arranged at different positions of a rotatable plane, and then the centrifugal force principle is utilized to effectively change the distance between the detection cylinders and the rotating shaft, so that the detection frequency interval of each detection cylinder is adjustable, the detection frequency distribution dead angle is effectively reduced, and high-precision detection can be performed on various microwave signals.

Description

Technical Field

[0001] The present invention relates to the field of microwave detection technology, and in particular, to a high-precision microwave detection device and method. Background Art

[0002] With the development of science and technology, radio frequency signal monitoring has a wide range of applications in many fields, such as radio spectrum management, border and coastal security, wireless communication monitoring, etc. Generally, radio uses long waves and short waves. Long waves, but due to the wide detection area and the need for large antenna equipment, our radio stations do not use long waves (LW) bands. On the contrary, short waves are less restricted by network hubs and active relay systems, and have anti-destruction capabilities and autonomous communication capabilities, and can be used stably. Therefore, in terms of stable signal radio information sources, short waves or even ultra-short waves, that is, microwaves, are generally used to send signals.

[0003] If microwaves are used, their frequency is very high and their wavelength is very short, but their diffraction ability is very weak. Small obstacles on the ground have a great impact on them. The ground's absorption capacity is also very strong, so they are generally not suitable for ground wave propagation. If sky wave propagation is used, a very accurate detection device is required to obtain the signal carried in the microwave at a long distance to decipher the content. There are few existing devices for obtaining long-distance microwave signals. For example, Chinese patent invention patent CN110031905A provides a long-distance microwave detection device and a detection method, which relate to the field of information acquisition technology. One of the long-distance microwave detection devices includes a first function board, a second function board, and a connecting rod for connecting the first function board and the second function board. The second function board rotates around the connection with the connecting rod. A microwave detector is arranged on the side of the second function board away from the first function board, an ultrasonic generator is arranged on the side of the first function board close to the second function board, an oscillation membrane is arranged on the side of the second function board close to the first function board, and a signal converter electrically connected to the microwave detector is arranged on the second function board. The road obstacle identification device and identification method of the above invention have simple structure, are convenient and stable, have strong detection capability, can obtain microwave signals at a long distance, and can remove impurities from the obtained microwave signals.

[0004] However, in the above-mentioned microwave detection method, when the second functional board oscillates, it rotates around a single axis, which will cause asymmetry between the left and right ends and may cause measurement errors; the measurement accuracy is still insufficient, especially for the microwave signals of the now popular 5G communication technology, which require higher reception accuracy.

[0005] For another example, Chinese patent invention patent CN113452453A provides a high-precision microwave detection method, which relates to the field of measurement and detection technology, including: S1: a first spring is set between the first plate and the second plate; S2: an oscillator connected to the second plate through the second spring is set on the first plate; S3: a microwave detector is set on the second plate; the first plate is connected to the output shaft of the driving motor; S4: the oscillator makes the second plate vibrate, and the driving motor drives the first plate to rotate; S5: the detection signal curve of the microwave detector is obtained at a predetermined interval; S6: whether there are any two microwave detectors with the same amplitude and opposite direction, if so, execute S7; otherwise, return to S4; S7: the control center decodes the microwave content. The above invention has a simple structure and is easy to use. It can obtain microwave signals at a long distance while ensuring that the shaking direction of the second plate does not deviate from the microwave vibration direction, effectively avoiding signal acquisition errors, and can be used in the acquisition of more demanding 5G microwave signals.

[0006] However, the above microwave detection method still has the following disadvantages: the spacing between multiple groups of microwave detectors is fixed, resulting in each microwave detector having a fixed detection frequency range. Therefore, there are still errors in the microwave detection of some frequencies or even the inability to effectively obtain them, making it difficult to accurately detect various microwave signals.

[0007] Therefore, in order to solve the above problems, it is very necessary for us to design a reasonable, efficient and high-precision microwave detection device and method. Summary of the invention

[0008] The purpose of the present invention is to provide a high-precision microwave detection device, which sets multiple groups of detection tubes at different positions on a rotatable plane, and then uses the principle of centrifugal force to effectively change the distance between the detection tube and the rotating shaft, so that the detection frequency range of each detection tube is adjustable, effectively reducing the blind spot of the detection frequency distribution, and can perform high-precision detection on various microwave signals.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A high-precision microwave detection device includes a turntable and a rotating shaft for driving the turntable to rotate, the turntable is provided with a slideway and a functional part arranged on the slideway, the slideway extends toward the rotating shaft, the functional part includes a sliding part for sliding along the slideway and a detection tube connected to the sliding part through a spring.

[0011] As a preferred embodiment of the present invention, the number of the slideway and the number of the functional part are at least one, and the distances between the plurality of sliding members and the rotating shaft are different.

[0012] As a preferred embodiment of the present invention, a detection cover is provided on the detection tube, and a detector is provided on the sampling cover.

[0013] As a preferred embodiment of the present invention, the sliding member includes an upper slide plate arranged on the upper side of the turntable and a lower slide plate arranged on the lower side of the turntable, and the upper slide plate and the lower slide plate are connected by a screw rod, and a tightening nut is sleeved on the screw rod.

[0014] As a preferred embodiment of the present invention, the number of the screw rod and the number of the tightening nut are at least one.

[0015] As a preferred embodiment of the present invention, a base plate extending toward the lower plate is provided on the upper plate, and one end of the spring away from the detection tube is connected to the base plate.

[0016] As a preferred embodiment of the present invention, the rotating shaft is connected to a continuously variable speed motor.

[0017] Another aspect of the present invention further provides a high-precision microwave detection method, using the above-mentioned high-precision microwave detection device, the method comprises the following steps:

[0018] S1: After the sliding member slides on the slideway to a predetermined position, it is fixed, and the detection tube is installed to the side of the sliding member away from the rotating shaft through a spring;

[0019] S2: Adjust the turntable until the detection tube is aligned with the microwave source;

[0020] S3: driving the rotating shaft to drive the turntable to rotate;

[0021] S4: After the spring expansion and contraction reaches a stable state, use the detection tube to detect the microwave source.

[0022] As a preferred embodiment of the present invention, the number of the slideway and the number of the functional part are at least one, and the distances between the plurality of sliding members and the rotating shaft are different;

[0023] When executing step S4, a plurality of detection tubes detect the microwave source.

[0024] As a preferred embodiment of the present invention, the rotating shaft is connected to a continuously variable speed motor;

[0025] After executing step S4, the rotation speed of the turntable is changed and step S3 is repeated.

[0026] The high-precision microwave detection device and method of the present invention have the following beneficial effects:

[0027] Multiple groups of detection tubes are set at different positions on a rotatable plane, and the distance between the detection tube and the rotating axis is effectively changed by using the principle of centrifugal force, so that the detection frequency range of each detection tube can be adjusted, effectively reducing the blind spot of detection frequency distribution, and high-precision detection of various microwave signals can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a high-precision microwave detection device of the present invention;

[0030] Figure 2 The figure is a schematic structural diagram of the functional parts of an embodiment of a high-precision microwave detection device of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0032] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, although the embodiment may not be clearly recorded in the following text.

[0033] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements described without departing from the scope of the present application. Various processes or components may be appropriately omitted, substituted or added to each example. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, features described in some examples may be combined in other examples.

[0034] Example 1: Please refer to Figure 1 , 2 The present invention provides a high-precision microwave detection device, including a turntable 1 and a rotating shaft 2 for driving the turntable 1 to rotate, the turntable 1 is provided with a slideway 11 and a functional part 12 arranged on the slideway 11, the slideway 11 extends toward the rotating shaft 2, the functional part 12 includes a sliding part for sliding along the slideway 11 and a detection tube 122 connected to the sliding part through a spring 121.

[0035] In the present invention, the rotating shaft 2 is vertically arranged at the center position of the circular turntable 1, so that when the rotating shaft 2 rotates, the circular turntable 1 can also rotate coaxially around the rotating shaft 2. A microwave detection device is arranged on the turntable 1, and the microwave detection device can rotate synchronously with the rotation of the turntable 1.

[0036] Here, the turntable 1 is provided with a slide 11 and a functional part 12 arranged on the slide 11. The functional part 12 is a microwave detection device, which plays a role of microwave detection; at least a part of the functional part 12 is located in the slide 11, and the slide 11 is a turntable 1 with a long strip of holes, and the slide 11 is extended in the direction of the rotating shaft 2, that is, the displacement adjustment of the functional part 12 in the slide 11 is the adjustment of the distance between the functional part 12 and the rotating shaft 2 (or the center of the turntable 1).

[0037] Next, the functional part 12 includes a sliding member for sliding along the slide 11 and a detection tube 122 connected to the sliding member through a spring 121; the sliding member can slide and be fixed in the slide 11, the detection tube 122 is the main body of the microwave detection device, and the detection tube 122 is connected to the sliding member through the spring 121; at least a part of the detection tube 122 is located in the slide 11, and the outer diameter of the detection tube 122 is just equal to the width of the slide 11, so that the detection tube 122 can only slide along the slide 11.

[0038] In fact, the detection tube 122 is oriented perpendicularly to the turntable 1, and the opening direction of the detection tube 122 is toward the side of the turntable 1 away from the rotating shaft 2. When performing target microwave detection, the end of the rotating shaft 2 close to the turntable 1 is facing the detection target, and then the detection tube 122 is naturally facing the detection target.

[0039] The detection tube 122 is provided with a detection cover 123, and the sampling cover 123 is provided with a detector 124; the detector 124 detects microwave targets, and a photoelectric conversion device and a relay device are provided in the detection tube 122. The signal detected by the detector 124 is converted into an electrical signal by the photoelectric conversion device, and then the relay device forwards the electrical signal to the computing center.

[0040] It should be noted that the number of the slide 11 and the number of the functional parts 12 are at least one, and the distances between the multiple sliding parts and the rotating shaft 2 are all different. That is to say, the sliding part is first adjusted to a specified position along the slide 11 and then fixed so as not to slide along the slide 11. The distances between the multiple fixed sliding parts and the rotating shaft 2 are all different; preferably, the distances between the multiple sliding parts and the rotating shaft 2 are arranged in an arithmetic progression.

[0041] After the detection tube 122 naturally faces the detection target, it is necessary to rotate the turntable 1 through the rotating shaft 2. At this time, the sliding part cannot slide, and the detection tube 122 is subjected to the centrifugal force of rotation. This centrifugal force overcomes the spring 121 to do work, so that the detection tube 122 slides in the slideway 11; until the centrifugal force and the spring elastic force reach a balance, at which time the position of the detection tube 122 is determined.

[0042] After the position of the detection tube 122 is determined, the detector 124 of the detection tube 122 is turned on to detect the microwave target, and a curve of the detection signal of the microwave detector is drawn; the detection signal curves of multiple detectors 124, the rotation speed of the turntable 1 and the distance information of the detector 124 from the center of the turntable 1 are sent to the control center, and the control center decodes the microwave content.

[0043] It should be noted that according to the centrifugal force formula F=m*r*w^2, m is the mass of the detection tube 122, r is the distance between the detection tube 122 and the center of the turntable 1, and w is the angular velocity of the turntable 1. Since all the detection tubes 122 have the same specifications and the same mass, all the detection tubes 122 are located on the same turntable 1 and have the same angular velocity of rotation, the centrifugal force F is only proportional to r. The farther the detection tube 122 is from the center of the turntable 1, the longer the extension length of its spring 121. Different detectors 124 have different displacement distances and detect different microwave frequencies, so that the detection frequency range of each detection tube is adjustable and different, which effectively reduces the blind spots in the detection frequency distribution and can perform high-precision detection on various microwave signals.

[0044] Embodiment 2, still Figure 1 , 2 As shown, in a high-precision microwave detection device of the present invention, the distances between the multiple sliding members and the rotating shaft 2 are L, 2L, 3L, 4L..., and so on. Then, when the rotation speed of the turntable 1 is v, when the spring 121 is stretched to cause the detection tube 122 to displace, the displacement distances of the multiple detection tubes 122 are a, 2a, 3a, 4a..., and so on.

[0045] Then the distances between the multiple detection tubes 122 and the axis center still maintain a ratio of 1:2:3:4..., that is, no matter how the rotation speed of the turntable 1 is, the ratio of the distances between the multiple detection tubes 122 and the center of the turntable before and after the turntable 1 rotates remains unchanged, but the displacement distance of each detection tube 122 is different.

[0046] In this way, it is possible to ensure that the detection data of the detectors 124 of the multiple detection tubes 122 still maintain a regularity with each other while maximally adjusting the detection frequency range.

[0047] Of course, the rotating shaft 2 needs to be connected to a continuously variable speed motor, and the motor can freely adjust the speed.

[0048] By adjusting the motor speed multiple times, all detection tubes 122 can be displaced to different distances, and the detected microwave frequencies can be adjusted differently, further reducing the blind spots in the detection frequency distribution.

[0049] As one of the embodiments of the present invention, the sliding member includes an upper slide 125 arranged on the upper side of the turntable 1 and a lower slide 126 arranged on the lower side of the turntable 1, the upper slide 125 and the lower slide 126 are connected by a screw 128, and a tightening nut 129 is sleeved on the screw 128; the screw 128 passes through the upper slide 125, the slideway 11 and the lower slide 126 in sequence, and the screw 128 is located on the side of the upper slide 125 away from the lower slide 126 and the side of the lower slide 126 away from the upper slide 125. The width of the upper slide 125 and the lower slide 126 are both greater than the width of the slideway 11. When the tightening nuts 129 at both ends of the screw 128 are tightened, the upper slide 125 and the lower slide 126 clamp the turntable 1; when the tightening nuts 129 are loosened, the sliding member can slide along the slideway 11.

[0050] As one of the embodiments of the present invention, the number of the screw rod 128 and the tightening nut 129 is at least one.

[0051] As one of the embodiments of the present invention, a base plate 127 extending toward the lower plate 126 is disposed on the upper plate 125 , and one end of the spring 121 away from the detection tube 122 is connected to the base plate 127 .

[0052] The base plate 127 extends into the slideway 11 , and the width of the base plate 127 is equal to the width of the slideway 11 .

[0053] Embodiment 3, the present invention further provides a high-precision microwave detection method, using a high-precision microwave detection device according to any of the above embodiments, the method comprising the following steps:

[0054] S1: After the sliding member slides on the slideway to a predetermined position, it is fixed, and the detection tube is installed to the side of the sliding member away from the rotating shaft through a spring;

[0055] S2: Adjust the turntable until the detection tube is aligned with the microwave source;

[0056] S3: driving the rotating shaft to drive the turntable to rotate;

[0057] S4: After the spring expansion and contraction reaches a stable state, use the detection tube to detect the microwave source.

[0058] The number of the slideway 11 and the number of the functional part 12 are at least one, and the distances between the plurality of slides and the rotating shaft 2 are different;

[0059] Correspondingly, when executing step S4, a plurality of detection tubes detect the microwave source.

[0060] Furthermore, the rotating shaft 2 is connected to a continuously variable speed motor;

[0061] After executing step S4, the rotation speed of the turntable is changed and step S3 is repeated;

[0062] The rotation speed of the turntable 1 is changed multiple times, and steps S3 to S4 are performed multiple times to further ensure the accuracy of microwave detection;

[0063] In fact, the rotation speed of the turntable increases slowly from the minimum to the maximum. Each time the rotation speed of the turntable changes, steps S3 to S4 are executed once, and a curve is drawn for the final detection data and summarized to the calculation center, which calculates and obtains the microwave data.

[0064] A high-precision microwave detection device and method of the present invention sets multiple groups of detection tubes at different positions on a rotatable plane, and then uses the principle of centrifugal force to effectively change the distance between the detection tube and the rotating shaft, so that the detection frequency range of each detection tube is adjustable, effectively reducing the dead angle of detection frequency distribution, and can perform high-precision detection on various microwave signals.

[0065] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A high-precision microwave detection device, characterized in that: The invention comprises a rotating disk (1) and a rotating shaft (2) for driving the rotating disk (1) to rotate; the rotating disk (1) is provided with a slideway (11) and a functional part (12) arranged on the slideway (11); the slideway (11) is extended in the direction of the rotating shaft (2); the functional part (12) comprises a sliding part for sliding along the slideway (11) and a detection tube (122) connected to the sliding part via a spring (121).

2. A high-precision microwave detection device according to claim 1, characterized in that: The number of the slideway (11) and the number of the functional part (12) are at least one, and the distances between the plurality of sliding parts and the rotating shaft (2) are different.

3. A high-precision microwave detection device according to claim 1, characterized in that: The detection tube (122) is provided with a detection cover (123), and the sampling cover (123) is provided with a detector (124).

4. A high-precision microwave detection device according to claim 1, characterized in that: The sliding member comprises an upper slide plate (125) arranged on the upper side of the turntable (1) and a lower slide plate (126) arranged on the lower side of the turntable (1); the upper slide plate (125) and the lower slide plate (126) are connected via a screw rod (128); a tightening nut (129) is sleeved on the screw rod (128).

5. A high-precision microwave detection device according to claim 4, characterized in that: The number of the screw rod (128) and the number of the tightening nut (129) are at least one.

6. A high-precision microwave detection device according to claim 4, characterized in that: The upper slide plate (125) is provided with a base plate (127) extending in the direction of the lower slide plate (126), and one end of the spring (121) away from the detection tube (122) is connected to the base plate (127).

7. A high-precision microwave detection device according to claim 1, characterized in that: The rotating shaft (2) is connected to a continuously variable speed motor.

8. A high-precision microwave detection method, using a high-precision microwave detection device as claimed in any one of claims 1 to 7, the method comprising the following steps: S1: After the sliding member slides on the slideway to a predetermined position, it is fixed, and the detection tube is installed to the side of the sliding member away from the rotating shaft through a spring; S2: Adjust the turntable until the detection tube is aligned with the microwave source; S3: driving the rotating shaft to drive the turntable to rotate; S4: After the spring expansion and contraction reaches a stable state, use the detection tube to detect the microwave source.

9. A high-precision microwave detection method according to claim 8, characterized in that: The number of the slideway (11) and the number of the functional part (12) are at least one, and the distances between the plurality of slide members and the rotating shaft (2) are different; When executing step S4, a plurality of detection tubes detect the microwave source.

10. A high-precision microwave detection method according to claim 8, characterized in that: The rotating shaft (2) is connected to a continuously variable speed motor; After executing step S4, the rotation speed of the turntable is changed and step S3 is repeated.

Images