Signal acquisition and analysis device

Abstract

The invention relates to the technical field of detection equipment, in particular to a signal acquisition and analysis device which comprises a base and an upper cover body, the upper cover body is detachably connected with the base, an antenna and a signal analysis module are installed on the base, the antenna is connected with the signal analysis module, and the signal analysis module is connected with the base. The antenna comprises a first antenna, a second antenna and a third antenna, the signal transmission frequencies of the first antenna, the second antenna and the third antenna are different, the first antenna is horizontally arranged, the radiation form of the first antenna is horizontal polarized waves, the second antenna is vertically arranged, the radiation form of the second antenna is vertical polarized waves, the third antenna is horizontally arranged, and the radiation form of the third antenna is vertical polarized waves. The radiation form is left-hand circularly polarized waves or right-hand circularly polarized waves. The signal acquisition and analysis device provided by the invention can be used for acquiring and analyzing signals of different frequency bands and is higher in accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a signal acquisition and analysis device. Background Art

[0002] Signal acquisition and analysis devices are often used for quality testing in engineering surveys. Currently, there are two main types of signal acquisition and analysis devices: one that collects and analyzes signals in a specific frequency band, offering high accuracy but limited applicability. The other can collect and analyze signals across different frequency bands. However, these devices suffer from interference between signals in different frequency bands, leading to accuracy deviations. Research continues to explore the possibility of developing a device that can collect and analyze signals across multiple frequency bands with higher accuracy. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a signal acquisition and analysis device to solve the above technical problems.

[0004] To achieve the above objectives, the present invention provides a signal acquisition and analysis device. A signal acquisition and analysis device includes a base and an upper cover, the upper cover being detachably connected to the base. An antenna and a signal analysis module are mounted on the base, the antenna being connected to the signal analysis module. The antenna includes a first antenna, a second antenna, and a third antenna. The signal transmission frequencies of the first antenna, the second antenna, and the third antenna are all different. The first antenna is arranged horizontally and radiates horizontally polarized waves. The second antenna is arranged vertically and radiates vertically polarized waves. The third antenna is arranged horizontally and radiates left-hand circularly polarized waves or right-hand circularly polarized waves.

[0005] Preferably, the base includes a groove body with an upward opening and a support body arranged at the top of the mounting groove, and the first antenna, the second antenna, the third antenna and the signal analysis module are respectively fixed on the support body; the bottom surface of the groove body is provided with a plurality of first through holes connected to the interior of the groove body; a second through hole and a third through hole are provided on the support body, and the second through hole and the third through hole are respectively connected to the groove body; a first elastic sheet is provided at the top end of the second through hole, and one side of the first elastic sheet is fixed to the support body, and the fixed position is located on one side of the second through hole; a second elastic sheet is provided at the bottom end of the third through hole, and both sides or four sides of the second elastic sheet are fixed to the support body, and the fixed position is arranged along the circumference of the third through hole.

[0006] Preferably, both sides of the trough body are provided with extension parts extending outward, fixing holes are provided on the extension parts, a rubber pad is provided under the trough body, the rubber pad is detachably connected to the trough body, a fourth through hole is provided on the rubber pad at a position corresponding to the first through hole, the bottom end of the extension part is lower than the bottom end of the trough body and higher than the bottom end of the rubber pad; the support body is slidably connected to the trough body and the edge position is sealed with the inner wall of the trough body; a plurality of elastic parts are provided between the bottom surface of the trough body and the support body, the bottom end of the elastic part is connected to the trough body, and the top end is connected to the support body.

[0007] Preferably, the support body is a support plate, and a piston ring is sleeved on the support plate.

[0008] Preferably, the support body is a piston.

[0009] Preferably, the elastic member is a rubber column, and a plurality of annular grooves are provided on the rubber column from top to bottom.

[0010] Preferably, the rubber pad is clamped between the two extension parts.

[0011] The signal acquisition and analysis device provided by the present invention sets the radiation forms of the first antenna, the second antenna, and the third antenna to horizontally polarized waves, vertically polarized waves, and left-hand circularly polarized waves or right-hand circularly polarized waves, respectively, and coordinates the vertical or horizontal placement of the first antenna, the second antenna, and the third antenna, so that the first antenna, the second antenna, and the third antenna are not prone to interference when receiving signals, and thus can acquire and analyze signals in different frequency bands with higher accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the structure of a signal acquisition and analysis device in an embodiment; Figure 2 Schematic diagram of the internal structure of the base in the embodiment; Figure 3 for Figure 2 Enlarged view at point A; Figure 4 for Figure 2 Enlarged view at point B; Markings in the accompanying drawings: Base 10, upper cover 11, signal analysis module 12, first antenna 13, second antenna 14, third antenna 15, slot 16, first through hole 16-1, extension 16-2, support body 17, second through hole 17-1, third through hole 17-2, filter 17-3, first elastic sheet 18, second elastic sheet 19, rubber pad 20, fourth through hole 20-1, rubber column 21, annular groove 21-1. DETAILED DESCRIPTION

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0014] Example The present invention provides a signal acquisition and analysis device, see Figure 1 and Figure 2 , including a base 10 and an upper cover 11, the upper cover is detachably connected to the base, and the general base and the upper cover are arranged to be connected by a snap-on or bolted manner, and an antenna and a signal analysis module 12 are installed on the base, and the antenna and the signal analysis module are connected. It should be noted that the connection method between the antenna and the signal analysis module here can be a direct connection through a conductor or a wireless transmission method, which is not specifically limited here; the antenna includes a first antenna 13, a second antenna 14 and a third antenna 15, and the signal transmission frequencies of the first antenna, the second antenna and the third antenna are different. The first antenna is arranged horizontally, and the radiation form is a horizontally polarized wave. The second antenna is arranged vertically, and the radiation form is a vertically polarized wave. The third antenna is arranged horizontally, and the radiation form is a left-hand circularly polarized wave or a right-hand circularly polarized wave.

[0015] The above-mentioned signal acquisition and analysis device sets the radiation forms of the first antenna, the second antenna and the third antenna to horizontal polarized waves, vertical polarized waves and left-hand circularly polarized waves or right-hand circularly polarized waves, respectively, and coordinates the vertical or horizontal placement of the first antenna, the second antenna and the third antenna, so that the first antenna, the second antenna and the third antenna are not prone to interference when receiving signals, and thus can acquire and analyze signals in different frequency bands with higher accuracy.

[0016] As an implementation method, see Figure 2-Figure 4, the base includes a groove body 16 with an upward opening and a support body 17 arranged at the top of the mounting groove, the first antenna, the second antenna, the third antenna and the signal analysis module are respectively fixed on the support body. In this embodiment, the support body can be a support plate, and a piston ring is sleeved on the support plate; the support body can also be directly set as a piston so that the support body can move up and down within a certain range; the bottom surface of the groove body is provided with a plurality of first through holes 16-1 connected to the interior of the groove body; a second through hole 17-1 and a third through hole 17-2 are provided on the support body, and the second through hole and the third through hole are respectively connected to the groove body; a first elastic sheet 18 is provided at the top of the second through hole, one side of the first elastic sheet is fixed to the support body, and the fixed position is located on one side of the second through hole. In order to prevent dust from entering the upper cover body along the second through hole, a filter screen 17-3 can also be fixed below the second through hole; a second elastic sheet 19 is provided at the bottom end of the third through hole, and the two sides or four sides of the second elastic sheet are fixed to the support body, and the fixed position is along the third through hole The holes are arranged circumferentially, wherein the fixed positions are generally two, three, or four. The first elastic sheet and the second elastic sheet can be rubber sheets or silicone sheets; the two sides of the groove body are provided with extensions 16-2 extending outward, and the extensions are provided with fixing holes 16-3, and the bottom ends of the extensions are lower than the bottom ends of the groove body; a rubber pad 20 is provided below the groove body, and the rubber pad is detachably connected to the groove body, and the rubber pad can generally be clamped between the two extensions, and a fourth through hole 2 is provided on the rubber pad at a position corresponding to the first through hole. 0-1, the bottom end of the extension part is lower than the bottom end of the groove body and higher than the bottom end of the rubber pad; the support body is slidably connected to the groove body and the edge position is sealed with the inner wall of the groove body; a plurality of elastic members are arranged between the bottom surface of the groove body and the support body, the bottom end of the elastic member is connected to the groove body, and the top end is connected to the support body. In this embodiment, the elastic member can be a rubber column 21, and a plurality of annular grooves 21-1 are arranged on the rubber column from top to bottom. Of course, the elastic member can also use a spring or other structure, which is not specifically limited here.

[0017] The above-mentioned signal acquisition and analysis device can be used in at least two ways: Usage 1: Remove the rubber pad and fix the extension part to the carrier with bolts through the fixing holes. During the use of the device, the temperature inside the upper cover increases, and the upper cover and the base cool down the high-temperature gas generated inside the upper cover by heat transfer, which can meet the cooling demand when the external ambient temperature is low. When the external temperature is high (such as at noon in summer), the gas expands when the temperature inside the upper cover increases, and the second elastic sheet is gradually increased by the gas pressure, so that the part between the fixed positions of the second elastic sheet is gradually stretched open, and the hot gas in the upper cover is gradually discharged into the groove body and exchanges heat with the outside through the first through hole. The airflow flows outward through the third through hole When the air in the air vents, the support member is compressed, and the air pressure in the air vents is reduced, which helps the air in the air vents to open.

[0018] Usage method 2: Remove the upper cover from the base, press the first elastic sheet while pressing the support body downward to generate negative pressure in the upper cover, then press the rubber pad against the carrier, release the support body, and the base will be adsorbed on the carrier under the action of negative pressure. Then install the upper cover. This method is suitable for fixed use of the device for a short period of time. After use, the base can be removed by squeezing the support body again.

[0019] Of course, when fixing the device for a long time, the method of embodiment 2 can also be used to adsorb the device on the carrier, and then use bolts to fix the extension part to the carrier through the fixing hole, so that the device is fixed more firmly and the shockproof effect is better.

[0020] As a variation, in this embodiment, the support body can also be directly fixed in the groove body, eliminating the elastic parts and rubber pads. In this case, the support body is generally a support plate. This structure also has the function of automatic heat dissipation, but the effect is worse than the above structure. It can be selectively produced according to factors such as specific use environment and production cost, and is not specifically limited here.

[0021] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "back" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0023] The above-described embodiments merely illustrate the implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A signal acquisition and analysis device, comprising a base (10) and an upper cover (11), wherein the upper cover is detachably connected to the base, an antenna and a signal analysis module (12) are mounted on the base, and the antenna and the signal analysis module are connected, characterized in that: The antenna comprises a first antenna (13), a second antenna (14) and a third antenna (15); the signal transmission frequencies of the first antenna, the second antenna and the third antenna are all different; the first antenna is arranged horizontally and radiates in the form of horizontally polarized waves; the second antenna is arranged vertically and radiates in the form of vertically polarized waves; the third antenna is arranged horizontally and radiates in the form of left-hand circularly polarized waves or right-hand circularly polarized waves.

2. The signal acquisition and analysis device according to claim 1, wherein: The base comprises a slot body (16) with an upward opening and a support body (17) arranged at the top of the installation slot, and the first antenna, the second antenna, the third antenna and the signal analysis module are respectively fixed on the support body; The bottom surface of the trough body is provided with a plurality of first through holes (16-1) communicating with the interior of the trough body; The support body is provided with a second through hole (17-1) and a third through hole (17-2), and the second through hole and the third through hole are respectively communicated with the inside of the slot body; a first elastic piece (18) is provided at the top end of the second through hole, one side of the first elastic piece is fixed to the support body, and the fixed position is located on one side of the second through hole; a second elastic piece (19) is provided at the bottom end of the third through hole, and two sides or four sides of the second elastic piece are fixed to the support body, and the fixed position is arranged along the circumference of the third through hole.

3. The signal acquisition and analysis device according to claim 2, characterized in that: Extension portions (16-2) extending outward are provided on both sides of the trough body, fixing holes (16-3) are provided on the extension portions, a rubber pad (20) is provided below the trough body, the rubber pad is detachably connected to the trough body, a fourth through hole (20-1) is provided on the rubber pad at a position corresponding to the first through hole, and the bottom end of the extension portion is lower than the bottom end of the trough body and higher than the bottom end of the rubber pad; The support body is slidably connected to the trough body and its edge is sealed to the inner wall of the trough body; A plurality of elastic members are provided between the bottom surface of the trough body and the support body, wherein the bottom ends of the elastic members are connected to the trough body, and the top ends of the elastic members are connected to the support body.

4. The signal acquisition and analysis device according to claim 3, characterized in that: The support body is a support plate, and a piston ring is sleeved on the support plate.

5. The signal acquisition and analysis device according to claim 3, characterized in that: The supporting body is a piston.

6. The signal acquisition and analysis device according to claim 3, characterized in that: The elastic member is a rubber column (21), and a plurality of annular grooves (21-1) are provided on the rubber column from top to bottom.

7. The signal acquisition and analysis device according to claim 3, characterized in that: The rubber pad is clamped between the two extension parts.

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