阅读说明：本技术 一种sar检测用信号采样方法及屏蔽装置 (Signal sampling method and shielding device for SAR detection ) 是由 张燕清 罗彪 叶峰 杨文婷 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种SAR检测用信号采样方法及屏蔽装置,涉及信号采样技术领域,针对现有的屏蔽装置不能跟随采样信号位置变化进行调节的问题,现提出如下方案,其包括以下步骤：S1：现将信号采样装置放置在特定区域,打开采样装置；S2：接着将屏蔽主体安装在屏蔽装置上面,打开屏蔽主体的屏蔽信号；S3：然后根据采样装置的位置,灵活调节屏蔽装置高度与角度；S4：最后通过采样装置就可以快速采样,方便人员进行后续操作,本发明结构简单,可以使得屏蔽装置跟随采样信号的位置进行调节,使得干扰的信号可以最大限度的被屏蔽,使得屏蔽效果更好,操作简单,使用方便。(The invention discloses a signal sampling method and a shielding device for SAR detection, which relate to the technical field of signal sampling and aim at the problem that the existing shielding device cannot be adjusted along with the position change of a sampling signal, the following scheme is proposed and comprises the following steps: s1: now, placing the signal sampling device in a specific area, and turning on the sampling device; s2: then, the shielding main body is arranged on the shielding device, and the shielding signal of the shielding main body is opened; s3: then, flexibly adjusting the height and the angle of the shielding device according to the position of the sampling device; s4: finally, the sampling can be carried out quickly through the sampling device, and the subsequent operation of personnel is facilitated.)

1. A signal sampling method for SAR detection is characterized by comprising the following steps:

s1: now, placing the signal sampling device in a specific area, and turning on the sampling device;

s2: then, the shielding main body is arranged on the shielding device, and the shielding signal of the shielding main body is opened;

s3: then, flexibly adjusting the height and the angle of the shielding device according to the position of the sampling device;

s4: and finally, the sampling can be quickly carried out through the sampling device, so that the personnel can conveniently carry out subsequent operation.

2. The signal shielding device for SAR detection according to claim 1, wherein the shielding device used in step S2 comprises two vertical pillars (7), a supporting plate (9) is slidably connected to each of two of the pillars (7), a lifting mechanism connected to the pillars (7) is fixedly connected to one end of the supporting plate (9), a transmission shaft (31) is rotatably connected to the inner side of each of the two supporting plates (9), a rotating mechanism is fixedly connected to one end of the transmission shaft (31), an adjusting gear (30) is fixedly connected to the other end of the transmission shaft (31), a gear ring (19) is engaged with the upper side of the adjusting gear (30), a circular guide rail (18) is fixedly connected to the inner side of the gear ring (19), and a positioning frame (14) is fixedly connected to the inner side of the circular guide rail (18), the both sides of positioning frame (14) all rotate and cup joint fixed cover (10) with backup pad (9) upside fixed connection, the inboard first fixture of fixedly connected with of positioning frame (14), the second fixture that the bottom fixedly connected with of first fixture is connected with transmission shaft (31).

3. The signal shielding device for SAR detection according to claim 2, the lifting mechanism comprises a driving motor (16) fixedly connected with the upper end of one of the upright posts (7), the output end of the driving motor (16) is fixedly connected with a driving bevel gear (17), one side meshing of initiative bevel gear (17) has driven bevel gear (12), two one side of driven bevel gear (12) all meshes and has connected bevel gear, two fixedly connected with drive member spare (13), two between the connection bevel gear the equal fixedly connected with of downside of driven bevel gear (12) rotates threaded rod (11) of being connected with stand (7), two equal thread sleeve has cup jointed threaded sleeve (8) with stand (7) sliding connection on threaded rod (11), threaded sleeve (8) and backup pad (9) fixed connection.

4. The SAR detection signal shielding device according to claim 2, characterized in that the rotating mechanism comprises a connecting plate (25) fixedly connected with one end of a transmission shaft (31), one side of the connecting plate (25) is fixedly connected with a handle (4), a through hole is formed in the connecting plate (25), a limiting plate (27) is fixedly connected to the lower side of the supporting plate (9), a positioning spring (28) is fixedly connected to one side of the limiting plate (27), a positioning plate (29) is fixedly connected to one side of the positioning spring (28), a positioning rod (26) slidably connected with the limiting plate (27) is fixedly sleeved in the middle of the positioning plate (29), and one end of the positioning rod (26) is matched with the through hole.

5. The signal shielding device for SAR detection according to claim 2, wherein the first clamping mechanism comprises a first limiting spring (20) fixedly connected with the inner side wall of the positioning frame (14), one side of the first limiting spring (20) is fixedly connected with a clamping plate (21) slidably connected with the positioning frame (14), and one side of the clamping plate (21) is in contact with the shielding main body (15) located inside the positioning frame (14).

6. The signal shielding device for SAR detection according to claim 5, wherein the second clamping mechanism comprises a second limiting spring (22) fixedly connected with the bottom of the clamping plate (21), one end of the second limiting spring (22) is fixedly connected with a pull rope (23), one end of the pull rope (23) is fixedly connected with a winding wheel (24) fixedly sleeved with the transmission shaft (31), and the bottom of the positioning frame (14) is fixedly connected with a guide wheel in contact with the pull rope (23).

7. The SAR detection signal shielding device according to claim 2, characterized in that the bottom of the upright post (7) is fixedly connected with a supporting block (32), the middle of the supporting block (32) is provided with a gas release hole (33), one side of the supporting block (32) is provided with a plug matched with the upper end of the gas release hole (33), and the bottom of the supporting block (32) is fixedly connected with a sucker (5) communicated with the gas release hole (33).

8. The signal shielding device for SAR detection according to claim 7, wherein fixing plates (6) are fixedly connected to two sides of the supporting block (32), a guide sleeve (3) is fixedly connected to the lower surface of the fixing plate (6), a hydraulic cylinder (1) is fixedly connected to the upper top surface of the inner side of the guide sleeve (3), and a universal wheel (2) slidably connected with the guide sleeve (3) is fixedly connected to the output end of the hydraulic cylinder (1).

Technical Field

The invention relates to the technical field of signal sampling, in particular to a signal sampling method and a shielding device for SAR detection.

Background

The conventional signal processing process may include four parts of sampling, compressing, storing/transmitting and decompressing, in the sampling process, data acquisition is performed on an original signal according to the nyquist sampling theorem, then the acquired data is compressed, in the compressing process, the acquired data is firstly transformed, then a few coefficients with larger absolute values are compressed and encoded, and other coefficients with zero or close to zero are discarded, wherein most of the data obtained by sampling is discarded in the compressing process.

When a general signal is sampled, a signal with a specific frequency needs to be collected, other interfering signals need to be shielded, and the general shielding device is directly placed on the ground or a desktop and cannot flexibly adjust the angle according to the position of the sampled signal, so that the sampled signal has a poor effect, and therefore a signal sampling method and a shielding device for SAR detection are needed at present.

Disclosure of Invention

The signal sampling method and the shielding device for SAR detection provided by the invention solve the problem that the shielding device cannot be adjusted along with the position change of a sampling signal.

In order to achieve the purpose, the invention adopts the following technical scheme:

a signal sampling method and a shielding device for SAR detection comprise the following steps:

s1: now, placing the signal sampling device in a specific area, and turning on the sampling device;

s2: then, the shielding main body is arranged on the shielding device, and the shielding signal of the shielding main body is opened;

s3: then, flexibly adjusting the height and the angle of the shielding device according to the position of the sampling device;

s4: and finally, the sampling can be quickly carried out through the sampling device, so that the personnel can conveniently carry out subsequent operation.

Preferably, the shielding device used in step S2 includes two vertically distributed columns, a supporting plate is slidably connected to one side of each of the two columns, one end of each support plate is fixedly connected with a lifting mechanism connected with the upright post, the inner sides of one ends of the two support plates are rotatably connected with transmission shafts, one end of the transmission shaft is fixedly connected with a rotating mechanism, the other end of the transmission shaft is fixedly sleeved with an adjusting gear, the upper side of the adjusting gear is engaged with a gear ring, the inner side of the gear ring is fixedly connected with a circular guide rail, the inner side of the circular guide rail is fixedly connected with a positioning frame, both sides of the positioning frame are rotatably sleeved with fixed sleeves fixedly connected with the upper side of the supporting plate, the inner side of the positioning frame is fixedly connected with a first clamping mechanism, and the bottom of the first clamping mechanism is fixedly connected with a second clamping mechanism connected with a transmission shaft.

Preferably, the lifting mechanism comprises one of the driving motors fixedly connected with the upper end of the stand column, the output end of each driving motor is fixedly connected with a driving bevel gear, one side of each driving bevel gear is meshed with a driven bevel gear, one side of each driven bevel gear is meshed with a connecting bevel gear, the two sides of each driven bevel gear are fixedly connected with a transmission rod piece, the lower sides of the driven bevel gears are fixedly connected with threaded rods rotatably connected with the stand column, the two threaded rods are sleeved with threaded sleeves in sliding connection with the stand column in a threaded manner, and the threaded sleeves are fixedly connected with the supporting plate.

Preferably, slewing mechanism include with transmission shaft one end fixed connection's connecting plate, one side fixedly connected with handle of connecting plate, the through-hole has been seted up on the connecting plate, the downside fixedly connected with limiting plate of backup pad, one side fixedly connected with positioning spring of limiting plate, one side fixedly connected with locating plate of positioning spring, the middle fixed locating lever that cup joints with limiting plate sliding connection of locating plate, the one end and the through-hole cooperation of locating lever.

Preferably, first fixture include with positioning frame inside wall fixed connection's first spacing spring, one side fixed connection of first spacing spring has and positioning frame sliding connection's grip block, one side contact of grip block has the shielding main part that is located positioning frame inboard.

Preferably, the second clamping mechanism comprises a second limiting spring fixedly connected with the bottom of the clamping plate, one end of the second limiting spring is fixedly connected with a pull rope, one end of the pull rope is fixedly connected with a winding wheel fixedly sleeved with the transmission shaft, and the bottom of the positioning frame is fixedly connected with a guide wheel in contact with the pull rope.

Preferably, the bottom fixedly connected with supporting shoe of stand, the hole of disappointing has been seted up in the centre of supporting shoe, one side of supporting shoe be provided with the hole upper end complex that loses heart block up, the bottom fixedly connected with of supporting shoe and the sucking disc of disappointing hole switch-on.

Preferably, the two sides of the supporting block are fixedly connected with fixing plates, the lower surface of each fixing plate is fixedly connected with a guide sleeve, the upper top surface of the inner side of each guide sleeve is fixedly connected with a hydraulic cylinder, and the output end of each hydraulic cylinder is fixedly connected with a universal wheel in sliding connection with the corresponding guide sleeve.

The invention has the beneficial effects that:

1. through putting into the shield main part between the grip block, just can compress tightly the grip block through first spacing spring, and then make the shield main part fix on positioning frame, prevent that the shield main part from taking place to drop, play safety protection's effect, it rotates to drive initiative bevel gear through driving motor, and then make driven bevel gear rotate, it rotates to drive the threaded rod, make the inboard of thread bush at the stand go up and down, and then the backup pad that drives thread bush one side goes up and down, make the positioning frame of backup pad upside go up and down, and then make the inboard shield main part of positioning frame go up and down, can make the shield main part go up and down certain height according to the signal of sampling, make the signal of sampling purer, make other signals shield, prevent interfering with the signal of sampling.

2. The connecting plate can be rotated by rotating the handle, the transmission shaft on one side of the connecting plate is rotated to drive the adjusting gear on the transmission shaft to rotate, the gear ring on the upper side is rotated to drive the circular ring guide rail to rotate by a specific angle, the positioning frame is rotated by a specific angle, the shielding main body can adjust the rotating angle according to the sampled signal, the shielding main body can shield the interfered signal to the maximum extent, the sampled signal has better effect, the sampling efficiency and quality are improved, the positioning plate on one side of the positioning rod can drive the positioning spring to stretch by pulling the positioning rod, then one end of the positioning rod is matched with the through hole on the connecting plate, the connecting plate is fixed when rotating by a specific angle, and the connecting plate is prevented from being not used, the adjusting gear and the gear ring are reset, the winding wheel on the transmission shaft is rotated when the transmission shaft is rotated, the pull rope is wound on the winding wheel, the second limiting spring at one end of the pull rope is stretched, secondary clamping and positioning can be carried out when the shielding main body rotates, the shielding main body is prevented from falling off when the shielding main body inclines, and the shielding main body is prevented from being damaged.

Drawings

Fig. 1 is a schematic front sectional view of a signal sampling method and a shielding device for SAR detection according to the present invention;

fig. 2 is a left-view partial schematic diagram of a signal sampling method and a shielding device for SAR detection according to the present invention;

fig. 3 is an enlarged schematic diagram of a portion a of the signal sampling method and the shielding device for SAR detection according to the present invention;

fig. 4 is an enlarged schematic diagram of a signal sampling method and a shielding device for SAR detection at position B according to the present invention.

Reference numbers in the figures: 1. a hydraulic cylinder; 2. a universal wheel; 3. a guide sleeve; 4. a handle; 5. a suction cup; 6. a fixing plate; 7. a column; 8. a threaded sleeve; 9. a support plate; 10. fixing a sleeve; 11. a threaded rod; 12. a driven bevel gear; 13. a driving rod member; 14. a positioning frame; 15. a shield main body; 16. a drive motor; 17. a drive bevel gear; 18. a circular guide rail; 19. a ring gear; 20. a first limit spring; 21. a clamping plate; 22. a second limit spring; 23. pulling a rope; 24. a winding wheel; 25. a connecting plate; 26. positioning a rod; 27. a limiting plate; 28. a positioning spring; 29. positioning a plate; 30. an adjusting gear; 31. a drive shaft; 32. a support block; 33. and air leakage holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, a signal sampling method for SAR detection includes the steps of: s1: now, placing the signal sampling device in a specific area, and turning on the sampling device;

s2: then, the shielding main body is arranged on the shielding device, and the shielding signal of the shielding main body is opened, so that the shielding device can shield other signals which do not need to be sampled, and the sampled signals are prevented from being interfered;

s3: then according to the position of the sampling device, the height and the angle of the shielding device are flexibly adjusted, so that the shielding device can flexibly adjust along with the position of the sampling device, and the shielding device can flexibly adjust along with the position of the sampling device

The shielding effect is better;

s4: and finally, the sampling can be quickly carried out through the sampling device, so that the personnel can conveniently carry out subsequent operation.

Wherein the shielding device used in the step S2 comprises two upright posts 7 which are vertically distributed, one side of each of the two upright posts 7 is slidably connected with a supporting plate 9, one end of each supporting plate 9 is fixedly connected with a lifting mechanism connected with the upright post 7, the inner sides of one ends of the two supporting plates 9 are rotatably connected with a transmission shaft 31, one end of each transmission shaft 31 is fixedly connected with a rotating mechanism, the other end of each transmission shaft 31 is fixedly sleeved with an adjusting gear 30, the upper side of each adjusting gear 30 is engaged with a gear ring 19, the inner side of each gear ring 19 is fixedly connected with a ring guide rail 18, the inner side of each ring guide rail 18 is fixedly connected with a positioning frame 14, the two sides of each positioning frame 14 are rotatably sleeved with fixing sleeves 10 fixedly connected with the upper side of the corresponding supporting plate 9, the inner side of each positioning frame 14 is fixedly connected with a first clamping mechanism, the bottom of each first clamping mechanism is fixedly connected with a second clamping mechanism connected with the transmission shaft 31, the shielding main body 15 is placed between the clamping plates 21, the clamping plates 21 can be pressed tightly through the first limiting spring 20, the shielding main body 15 is further fixed on the positioning frame 14, the shielding main body 15 is prevented from falling, the safety protection effect is achieved, the driving bevel gear 17 is driven to rotate through the driving motor 16, the driven bevel gear 12 is further driven to rotate, the threaded rod 11 is driven to rotate, the threaded sleeve 8 is lifted on the inner side of the upright post 7, the supporting plate 9 on one side of the threaded sleeve 8 is driven to lift, the positioning frame 14 on the upper side of the supporting plate 9 is lifted, the shielding main body 15 on the inner side of the positioning frame 14 is lifted, the shielding main body 15 can be lifted to a certain height according to a sampled signal, the sampled signal is made to be purer, other signals are shielded, the sampled signal is prevented from being interfered, and the connecting plate 25 can be rotated by rotating the handle 4, the transmission shaft 31 on one side of the connecting plate 25 is rotated to drive the adjusting gear 30 on the transmission shaft 31 to rotate, the gear ring 19 on the upper side is rotated to further drive the circular ring guide rail 18 to rotate a specific angle, the positioning frame 14 is rotated by a specific angle, the shielding main body 15 can adjust the rotating angle according to the sampled signal, the shielding main body 15 can shield the interfered signal to the maximum extent, the sampled signal has better effect, the sampling efficiency and quality are improved, the positioning plate 29 on one side of the positioning rod 26 can drive the positioning spring 28 to stretch by pulling the positioning rod 26, then one end of the positioning rod 26 is matched with the through hole on the connecting plate 25, the connecting plate 25 is fixed when rotating the specific angle, and the connecting plate 25 is prevented from being used, adjusting gear 30 and ring gear 18 take place to reset to when rotating transmission shaft 31, make winding-up wheel 24 above the transmission shaft 31 rotate, make stay cord 23 wind winding-up wheel 24 above, make the spacing spring 22 of second of stay cord 23 one end tensile, just can carry out secondary centre gripping location when shielding main part 15 rotates, prevent that shielding main part 15 from dropping when the slope, prevent to damage shielding main part 15.

Elevating system includes with one of them stand 7 upper end fixed connection's driving motor 16, driving motor 16's output fixedly connected with drive bevel gear 17, the meshing of one side of drive bevel gear 17 has driven bevel gear 12, the equal meshing of one side of two driven bevel gears 12 has connection bevel gear, fixedly connected with drive rod piece 13 between two connection bevel gears, the equal fixedly connected with of downside of two driven bevel gear 12 rotates the threaded rod 11 of being connected with stand 7, equal thread bush 8 with stand 7 sliding connection has been cup jointed to equal screw on two threaded rod 11, thread bush 8 and backup pad 9 fixed connection.

Slewing mechanism includes the connecting plate 25 with 31 one end fixed connection of transmission shaft, one side fixedly connected with handle 4 of connecting plate 25, the through-hole has been seted up on the connecting plate 25, the downside fixedly connected with limiting plate 27 of backup pad 9, one side fixedly connected with positioning spring 28 of limiting plate 27, one side fixedly connected with locating plate 29 of positioning spring 28, fixed cup joint in the middle of locating plate 29 has the locating lever 26 with limiting plate 27 sliding connection, the one end and the through-hole cooperation of locating lever 26, handle 4 can freely rotate just can make transmission shaft 31 rotate, and then make adjusting gear 30 drive ring gear 19 rotate, make the angle of shielding main part 15 adjust.

The first clamping mechanism comprises a first limiting spring 20 fixedly connected with the inner side wall of the positioning frame 14, one side of the first limiting spring 20 is fixedly connected with a clamping plate 21 in sliding connection with the positioning frame 14, and one side of the clamping plate 21 is in contact with the shielding main body 15 located on the inner side of the positioning frame 14.

The second clamping mechanism comprises a second limiting spring 22 fixedly connected with the bottom of the clamping plate 21, one end of the second limiting spring 22 is fixedly connected with a pull rope 23, one end of the pull rope 23 is fixedly connected with a winding wheel 24 fixedly sleeved with the transmission shaft 31, and the bottom of the positioning frame 14 is fixedly connected with a guide wheel in contact with the pull rope 23.

Bottom fixedly connected with supporting shoe 32 of stand 7, disappointing hole 33 has been seted up in the centre of supporting shoe 32, one side of supporting shoe 32 is provided with and loses heart hole 33 upper end complex shutoff and blocks up, the bottom fixedly connected with of supporting shoe 32 and the sucking disc 5 of disappointing hole 33 switch-on, through placing stand 7 glossy subaerial, just can fix stand 7 subaerial through sucking disc 5, when needs remove, drive 2 roll-off uide bushing 3 of universal wheel through pneumatic cylinder 1, just can make universal wheel 2 and ground contact, then open the sealing plug, make the atmospheric pressure of sucking disc 5 the inside pass through disappointing hole 33 and external atmospheric pressure unanimous, make the sucking disc break away from ground, make the device can the quick travel.

The both sides fixedly connected with fixed plate 6 of supporting shoe 32, the lower fixed surface of fixed plate 6 is connected with uide bushing 3, and top surface fixedly connected with pneumatic cylinder 1 on the inboard of uide bushing 3, the output end fixedly connected with of pneumatic cylinder 1 and uide bushing 3 sliding connection's universal wheel 2.

The working principle is as follows: the shielding main body 15 is placed between the clamping plates 21, the clamping plates 21 can be pressed tightly through the first limiting spring 20, the shielding main body 15 is further fixed on the positioning frame 14, the shielding main body 15 is prevented from falling, the safety protection effect is achieved, the driving bevel gear 17 is driven to rotate through the driving motor 16, the driven bevel gear 12 is further driven to rotate, the threaded rod 11 is driven to rotate, the threaded sleeve 8 is lifted on the inner side of the upright post 7, the supporting plate 9 on one side of the threaded sleeve 8 is driven to lift, the positioning frame 14 on the upper side of the supporting plate 9 is lifted, the shielding main body 15 on the inner side of the positioning frame 14 is lifted, the shielding main body 15 can be lifted to a certain height according to a sampled signal, the sampled signal is made to be purer, other signals are shielded, the sampled signal is prevented from being interfered, and the connecting plate 25 can be rotated by rotating the handle 4, the transmission shaft 31 on one side of the connecting plate 25 is rotated to drive the adjusting gear 30 on the transmission shaft 31 to rotate, the gear ring 19 on the upper side is rotated to further drive the circular ring guide rail 18 to rotate a specific angle, the positioning frame 14 is rotated by a specific angle, the shielding main body 15 can adjust the rotating angle according to the sampled signal, the shielding main body 15 can shield the interfered signal to the maximum extent, the sampled signal has better effect, the sampling efficiency and quality are improved, the positioning plate 29 on one side of the positioning rod 26 can drive the positioning spring 28 to stretch by pulling the positioning rod 26, then one end of the positioning rod 26 is matched with the through hole on the connecting plate 25, the connecting plate 25 is fixed when rotating the specific angle, and the connecting plate 25 is prevented from being used, adjusting gear 30 and ring gear 18 take place to reset to when rotating transmission shaft 31, make winding-up wheel 24 above the transmission shaft 31 rotate, make stay cord 23 wind winding-up wheel 24 above, make the spacing spring 22 of second of stay cord 23 one end tensile, just can carry out secondary centre gripping location when shielding main part 15 rotates, prevent that shielding main part 15 from dropping when the slope, prevent to damage shielding main part 15.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.