CN113452453A - High-precision microwave detection method - Google Patents
High-precision microwave detection method Download PDFInfo
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- CN113452453A CN113452453A CN202110714626.9A CN202110714626A CN113452453A CN 113452453 A CN113452453 A CN 113452453A CN 202110714626 A CN202110714626 A CN 202110714626A CN 113452453 A CN113452453 A CN 113452453A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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Abstract
The invention provides a high-precision microwave detection method, which relates to the technical field of measurement and detection and comprises the following steps: s1: a first spring is arranged between the first plate and the second plate; s2: the first plate is provided with an oscillator connected with the second plate through a second spring; s3: the second plate is provided with a microwave detector; the first plate is connected with an output shaft of the driving motor; s4: the oscillator enables the second plate to vibrate, and the driving motor drives the first plate to rotate; s5: acquiring a detection signal curve of the microwave detector at preset time intervals; s6: judging whether the curve amplitudes of any two microwave detectors are the same and opposite in direction, if so, executing S7; otherwise, returning to S4; s7: the control center decodes the microwave content. The microwave signal acquisition device is simple in structure and convenient to use, can acquire microwave signals remotely, ensures that the shaking direction of the second plate is not deviated from the microwave vibration direction, effectively avoids signal acquisition errors, and can be applied to acquisition of more demanding 5G microwave signals.
Description
Technical Field
The invention relates to the technical field of measurement and detection,
in particular, the present invention relates to a high-precision microwave detection method.
Background
With the rapid progress of society, rf signal monitoring has wide application in many fields, such as radio spectrum management, border and coast security, wireless communication monitoring, and the like. The general radio adopts long wave, short wave and long wave, but because the detection area is wide, because the long wave needs huge antenna equipment, the broadcasting station of China does not adopt Long Wave (LW) wave band, otherwise the short wave is restrained by network pivot and active relay body little, and the survivability and the autonomous communication ability can be used stably, so on the stable signal radio information source, the short wave or even ultra-short wave is generally adopted to send signals.
If the microwave mode is adopted, the frequency is very high, the wavelength is very short, but the diffraction capability is very weak, and a small obstacle on the ground has a great influence on the microwave mode, the absorption capability of the ground is very strong, the microwave mode is generally not suitable for ground wave mode transmission, the sky wave mode transmission is adopted, and a very precise detection device is required to obtain signals carried in the microwave on a long distance, so as to decipher the contents, the existing devices for obtaining the microwave signals on the long distance are few, for example, Chinese patent invention patent CN110031905A provides a long-distance microwave detection device and a detection method, and relates to the technical field of information acquisition, wherein the long-distance microwave detection device comprises a first functional board, a second functional board and a connecting rod for connecting the first functional board and the second functional board, the second functional board rotates around the connecting rod, and a microwave detector is arranged on one side of the second functional board far away from the first functional board, one side of the first function board close to the second function board is provided with an ultrasonic generator, one side of the second function board close to the first function board is provided with a vibration film, and the second function board is provided with a signal converter electrically connected with a microwave detector. The road obstacle recognition device and the road obstacle recognition method are simple in structure, convenient and stable, strong in detection capability, capable of obtaining microwave signals remotely and capable of removing impurities from the obtained microwave signals.
The accuracy is not sufficient and the signal interference cannot be effectively eliminated.
However, the microwave detection method still has the following disadvantages: when the second function board vibrates, the left end and the right end are asymmetric due to the fact that the second function board rotates around a single shaft, and measurement errors may occur; the measurement accuracy is still insufficient, especially for the microwave signals of the 5G communication technology popularized nowadays, the receiving accuracy is required to be higher.
Therefore, in order to solve the above problems, it is necessary to design a reasonable high-precision microwave detection method.
Disclosure of Invention
The invention aims to provide a microwave detection method which is simple in structure, convenient to use, capable of acquiring microwave signals remotely, capable of ensuring that the shaking direction of a second plate is not deviated from the microwave vibration direction, capable of effectively avoiding signal acquisition errors and capable of being used for acquiring 5G microwave signals with higher requirements and high accuracy.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a high-precision microwave detection method comprises the following steps:
s1: a plurality of first springs are uniformly arranged between the edge of the first plate and the edge of the second plate;
s2: arranging an oscillator in the center of one side of the first plate close to the second plate, and connecting the center of one side of the second plate close to the first plate with the oscillator through a second spring, wherein the length of the second spring is smaller than that of the first spring;
s3: arranging at least two microwave detectors on one side of the second plate far away from the first plate; connecting one side of the first plate, which is far away from the second plate, with an output shaft of a driving motor;
s4: inputting the vibration frequency of the oscillator to enable the second plate to vibrate, and starting the driving motor to drive the first plate to rotate around the axis of the output shaft of the driving motor;
s5: acquiring detection signals of all microwave detectors at preset time intervals, and drawing a detection curve;
s6: judging whether the same direction and the opposite direction of the curve wave amplitudes drawn by the detection signals of any two microwave detectors exist, if so, executing a step S7; otherwise, returning to step S4, and re-inputting the vibration frequency of the new oscillator;
s7: and outputting detection signal curves of the two microwave detectors, the vibration frequency of the oscillator and the rotating speed value of the driving motor to a control center, and decoding microwave contents by the control center.
As a preferable aspect of the present invention, when step S1 is executed, the number of the first springs is at least three, and the distance between any two adjacent first springs is the same.
Preferably, in step S1, the first plate and the second plate are both circular plates.
As a preferable aspect of the present invention, when step S2 is performed, the stiffness coefficient of the second spring is larger than the stiffness coefficient of the first spring.
Preferably, in step S2, a vibration damping pad is provided between the oscillator and the first plate.
Preferably, in step S3, the microwave detectors are all equidistant from the center of the second plate.
Preferably, in step S4, the driving motor is turned on after the second board is stabilized by vibration.
Preferably, the predetermined time is set before step S5 is executed.
Preferably, in step S6, the detection signal curve of any one microwave detector is compared with the detection signal curves of all other microwave detectors in sequence.
Preferably, in step S7, the control center obtains the relative position between the two microwave detectors according to the rotation speed of the driving motor, decodes the microwave signals, and eliminates the vibration factor of the oscillator according to the obtained vibration frequency of the oscillator.
The high-precision microwave detection method has the beneficial effects that: simple structure, convenient to use when can remote acquisition microwave signal, guarantees that the direction of rocking of second board is not skew with microwave vibrations direction, effectively avoids the signal to acquire the error, can be used for requiring high 5G microwave signal's acquisition more.
Drawings
Fig. 1 is a schematic flow chart of a high-precision microwave detection method according to the present invention.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and structures set forth in these embodiments does not limit the scope of the invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
Example (b): as shown in fig. 1, which is only one embodiment of the present invention, a high-precision microwave detection method includes the following steps:
s1: a plurality of first springs are uniformly arranged between the edge of the first plate and the edge of the second plate;
here, the first plate and the second plate are both circular plates and are parallel to each other, and a line connecting centers of circles of the first plate and the second plate is perpendicular to the first plate, that is, the first plate and the second plate are coaxially arranged.
It should be noted that, here, the first spring refers to a first type of spring, the number of the first springs is at least three, the distance from each first spring to the axis of the first plate and the axis of the second plate is the same, and the distance between any two adjacent first springs is the same, that is, all the springs are uniformly arranged around the center of the circle of the first plate and the center of the circle of the second plate.
Since it is the first type of spring, all the first springs have the same specification, i.e., the same length and the same spring constant.
S2: arranging an oscillator in the center of one side of the first plate close to the second plate, and connecting the center of one side of the second plate close to the first plate with the oscillator through a second spring, wherein the length of the second spring is smaller than that of the first spring;
that is to say, the centre of a circle of first board and the centre of a circle of second board have been connected to the second spring, or stated otherwise, a plurality of first springs evenly wind the setting of second spring, and of course, all first springs all with second spring parallel arrangement, but be provided with the backing plate that takes precautions against earthquakes between oscillator and the first board, only can drive the vibrations of second board through the second spring when the oscillator vibrates promptly, and can not drive the vibration of second board through first board and first spring.
Generally, the length of the second spring is less than the length of the first spring, and the stiffness coefficient of the second spring is greater than the stiffness coefficient of the first spring. Therefore, the second spring is in a tensioned state, and the oscillation transmission effect is better.
S3: arranging at least two microwave detectors on one side of the second plate far away from the first plate; connecting one side of the first plate, which is far away from the second plate, with an output shaft of a driving motor;
the second plate is provided with a plurality of microwave detectors, preferably the distances from the microwave detectors to the center of the second plate are all equal.
Here, one side of the second plate provided with the microwave detector is approximately aligned with the direction of the microwave emission source, the first plate is arranged behind the second plate, the driving motor is arranged behind the first plate, the driving motor works to drive the output shaft to rotate, the output shaft is preferably arranged coaxially with the first plate and the second plate, so that the output shaft drives the first plate to rotate around the axis of the output shaft (also rotates around the axis of the first plate), and under the delay of the first spring and the second spring, the second plate is also driven to rotate.
However, since the second plate is not fixedly connected to the first plate but elastically connected thereto, the second plate may deviate from the rotational axis of the first plate (centrifugal movement) when rotated, but may be always maintained in parallel with the first plate when rotated due to the same force of the plurality of first springs.
S4: inputting the vibration frequency of the oscillator to enable the second plate to vibrate, and starting the driving motor to drive the first plate to rotate around the axis of the output shaft of the driving motor;
in step S4, the driving motor is turned on after the second board is stabilized by vibration.
That is, the second plate is made to have a high-frequency oscillating motion while performing eccentric rotation about the rotation axis to accommodate a distance error between two peaks and troughs of the high-frequency microwave.
S5: acquiring detection signals of all microwave detectors at preset time intervals, and drawing a detection curve;
of course, the predetermined time is set before step S5 is executed.
S6: judging whether the same direction and the opposite direction of the curve wave amplitudes drawn by the detection signals of any two microwave detectors exist, if so, executing a step S7; otherwise, returning to step S4, and re-inputting the vibration frequency of the new oscillator;
when step S6 is executed, the detection signal curve of any one microwave detector is compared with the detection signal curves of all other microwave detectors in sequence until all microwave detectors are compared, and as long as the amplitudes of the curves drawn by the detection signals of any two microwave detectors are the same and opposite, two detection data of the microwave can be obtained, and the microwave can be decoded.
S7: and outputting detection signal curves of the two microwave detectors, the vibration frequency of the oscillator and the rotating speed value of the driving motor to a control center, and decoding microwave contents by the control center.
When step S7 is executed, the control center obtains the relative position between the two microwave detectors according to the rotation speed value of the driving motor, decodes the microwave signal, and eliminates the vibration factor of the oscillator according to the obtained vibration frequency of the oscillator.
In the invention, the second plate vibrates and rotates eccentrically at high frequency, and meanwhile, the second plate is always kept on a plane horizontally arranged with the first plate, does not turn over relative to the horizontal plane and does not deviate from the microwave vibration direction, thus effectively avoiding acquisition errors and having higher accuracy.
The microwave detection method with high precision has the advantages of simple structure and convenience in use, can acquire microwave signals remotely, ensures that the shaking direction of the second plate is not deviated from the microwave vibration direction, effectively avoids signal acquisition errors, and can be used for acquiring more demanding 5G microwave signals.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A high-precision microwave detection method is characterized by comprising the following steps:
s1: a plurality of first springs are uniformly arranged between the edge of the first plate and the edge of the second plate;
s2: arranging an oscillator in the center of one side of the first plate close to the second plate, and connecting the center of one side of the second plate close to the first plate with the oscillator through a second spring, wherein the length of the second spring is smaller than that of the first spring;
s3: arranging at least two microwave detectors on one side of the second plate far away from the first plate; connecting one side of the first plate, which is far away from the second plate, with an output shaft of a driving motor;
s4: inputting the vibration frequency of the oscillator to enable the second plate to vibrate, and starting the driving motor to drive the first plate to rotate around the axis of the output shaft of the driving motor;
s5: acquiring detection signals of all microwave detectors at preset time intervals, and drawing a detection curve;
s6: judging whether the same direction and the opposite direction of the curve wave amplitudes drawn by the detection signals of any two microwave detectors exist, if so, executing a step S7; otherwise, the vibration frequency of the new oscillator is input again, and the step S4 is returned to;
s7: and outputting detection signal curves of the two microwave detectors, the vibration frequency of the oscillator and the rotating speed value of the driving motor to a control center, and decoding microwave contents by the control center.
2. A high precision microwave detection method according to claim 1, wherein:
when step S1 is executed, the number of the first springs is at least three, and the distance between any two adjacent first springs is the same.
3. A high precision microwave detection method according to claim 2, wherein:
when step S1 is performed, the first plate and the second plate are both circular plates.
4. A high precision microwave detection method according to claim 1, wherein:
in step S2, the stiffness coefficient of the second spring is greater than the stiffness coefficient of the first spring.
5. A high precision microwave detection method according to claim 1, wherein:
in step S2, a vibration-proof pad is disposed between the oscillator and the first plate.
6. A high precision microwave detection method according to claim 3, wherein:
in step S3, the distances from the plurality of microwave detectors to the center of the second plate are all equal.
7. A high precision microwave detection method according to claim 1, wherein:
in step S4, the driving motor is turned on after the second board is stabilized by vibration.
8. A high precision microwave detection method according to claim 1, wherein:
the predetermined time is set before step S5 is executed.
9. A high precision microwave detection method according to claim 1, wherein:
when step S6 is executed, the detection signal curve of any one microwave detector is compared with the detection signal curves of all other microwave detectors in sequence.
10. A high precision microwave detection method according to claim 1, wherein:
and when the step S7 is executed, the control center acquires the relative position between the two microwave detectors according to the rotating speed value of the driving motor, decodes the microwave signals and eliminates the vibration factors of the oscillator according to the acquired vibration frequency of the oscillator.
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| CN202110714626.9A CN113452453B (en) | 2021-06-26 | 2021-06-26 | High-precision microwave detection method |
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| CN202110714626.9A CN113452453B (en) | 2021-06-26 | 2021-06-26 | High-precision microwave detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552182A (en) * | 2022-02-17 | 2022-05-27 | 华中师范大学 | Antenna structure with adjustable detection frequency and use method |
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|---|---|---|---|---|
| US20190006745A1 (en) * | 2015-08-26 | 2019-01-03 | Sharp Kabushiki Kaisha | High frequency device |
| CN110031905A (en) * | 2019-05-16 | 2019-07-19 | 武昌理工学院 | A kind of remote microwave sounding unit, MSU and detection method |
| CN111551516A (en) * | 2020-05-14 | 2020-08-18 | 南京邮电大学 | Efficient visual terahertz detector and preparation and test methods thereof |
| CN113009451A (en) * | 2021-05-07 | 2021-06-22 | 武昌理工学院 | Remote radar microwave scattering receiving method |
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- 2021-06-26 CN CN202110714626.9A patent/CN113452453B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190006745A1 (en) * | 2015-08-26 | 2019-01-03 | Sharp Kabushiki Kaisha | High frequency device |
| CN110031905A (en) * | 2019-05-16 | 2019-07-19 | 武昌理工学院 | A kind of remote microwave sounding unit, MSU and detection method |
| CN111551516A (en) * | 2020-05-14 | 2020-08-18 | 南京邮电大学 | Efficient visual terahertz detector and preparation and test methods thereof |
| CN113009451A (en) * | 2021-05-07 | 2021-06-22 | 武昌理工学院 | Remote radar microwave scattering receiving method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552182A (en) * | 2022-02-17 | 2022-05-27 | 华中师范大学 | Antenna structure with adjustable detection frequency and use method |
| CN114552182B (en) * | 2022-02-17 | 2023-10-31 | 华中师范大学 | Antenna structure with adjustable detection frequency and use method |
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