CN111245402B - Zero-phase digital filter convenient for voice prompt based on remote control - Google Patents
Zero-phase digital filter convenient for voice prompt based on remote control Download PDFInfo
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- CN111245402B CN111245402B CN202010155210.3A CN202010155210A CN111245402B CN 111245402 B CN111245402 B CN 111245402B CN 202010155210 A CN202010155210 A CN 202010155210A CN 111245402 B CN111245402 B CN 111245402B
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- 239000007787 solid Substances 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0201—Wave digital filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The invention discloses a zero-phase digital filter which is convenient to carry out voice prompt and based on remote control, and the zero-phase digital filter comprises a shell main body, a second filter plate, a first air pipe and a connecting end head, wherein a lifting handle is arranged on the upper surface of the shell main body, the bottom end of the lifting handle is connected with a connecting cross rod through a screw, the connecting cross rod is connected with a shell main body bearing, the left end and the right end of the connecting cross rod are connected with a threaded rod through a conical gear set, the bottom end of the threaded rod is connected with the shell main body bearing, a connecting vertical rod is connected with the upper outer side of the threaded rod through threads, a fixed sucker is arranged at the bottom end screw of the connecting vertical rod, the left side surface of the shell main body is connected with the first filter plate in a clamping mode, and a mounting plate is fixed on the inner screw of the first filter plate. This zero phase digital filter based on remote control is convenient for carry out voice prompt is provided with second tuber pipe and first tuber pipe to the inside gaseous fine of first tuber pipe of being convenient for blows the dust removal to first filter.
Description
Technical Field
The invention relates to the technical field of zero-phase digital filters, in particular to a zero-phase digital filter which is convenient for voice prompt based on remote control.
Background
The zero-phase digital filter is a device for eliminating interference noise in the dynamic test signal processing process, and along with the continuous development of technology, the zero-phase digital filter can be remotely controlled, so that the zero-phase digital filter is more convenient for people to use, and although the zero-phase digital filter in the market has a plurality of types, some defects exist, such as:
1. the voice prompt playing port of the traditional zero-phase digital filter is easy to enter dust and impurities in the outside air after long-term use, and a large amount of dust and impurities can be accumulated after long-term use, so that the volume of voice prompt can be influenced, and voice prompt work is inconvenient;
2. the traditional zero-phase digital filter is placed by simply contacting the bottom of the zero-phase digital filter shell with a placement area, so that the placement stability of the zero-phase digital filter cannot be improved, the zero-phase digital filter is enabled to be displaced when being impacted by the outside, and the connecting end head and the connecting wire of the outside are enabled to be loose;
we have therefore proposed a zero-phase digital filter based on remote control that facilitates voice prompts in order to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a zero-phase digital filter which is convenient for voice prompt based on remote control, so as to solve the problems that the traditional zero-phase digital filter in the current market provided by the background technology is inconvenient for voice prompt work and cannot improve the placement stability of the zero-phase digital filter.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a zero-phase digital filter based on remote control is convenient for carry out voice prompt, includes casing main part, second filter, first tuber pipe and connection end, the upper surface of casing main part is provided with the handle, and the bottom of handle is with connecting the horizontal pole screw connection to connect horizontal pole and casing main part bearing connection, both ends all are connected with the threaded rod through the taper gear group about connecting the horizontal pole, and the bottom and the casing main part bearing connection of threaded rod to the top outside threaded connection of threaded rod has the connection montant, the fixed suction cup is installed to the bottom screw of connecting the montant, the left surface block of casing main part is connected with first filter, and the inside screw fixation of first filter has the mounting panel to the second tuber pipe is installed to the inside nest of bottom surface of casing main part, radiating fin is installed to the outside screw of bottom surface outside the casing main part, and the recess has been seted up to the left surface of casing main part, and the inside screw of the left surface of casing main part installs the second filter to the standing groove, the inside of standing groove is provided with the handle, the inside of the bottom surface of casing main part is fixed with first filter, and the first side screw of first side of casing main part is installed to the first side of first filter.
Preferably, the handles and the placing grooves are in an inverted U-shaped structure, the placing grooves are in concave-convex fit with the handles, and the handles and the placing grooves are arranged in one-to-one correspondence.
Preferably, the number of the connecting cross bars and the threaded rods is 1:2, the connecting cross bars and the threaded rods are arranged in a vertical state, and the 2 threaded rods are symmetrically arranged about the vertical center line of the connecting cross bars.
Preferably, the connecting vertical rod and the fixing sucker form a lifting structure with the shell body through the threaded rod, and the highest point of the fixing sucker is higher than the lowest point of the radiating fin.
Preferably, the first filter plate is in concave-convex fit with the left side surface of the shell body, the mesh diameter inside the first filter plate is larger than that inside the second filter plate, and the first filter plate and the connecting vertical rods are not on the same vertical surface.
Preferably, the inside equal screw fixation of upper and lower both ends of mounting panel has reset spring, and reset spring's top screw installs the lug to the bottom screw of lug installs the connecting rope, and the bottom of connecting rope and the right-hand member outside screw connection of pull rod simultaneously, and the equal screw installation stopper of both sides about the right-hand member of pull rod, and the outside of stopper is provided with the spacing groove, and the outside of spacing groove is fixed with the mounting panel.
Preferably, the lug forms a sliding structure with the mounting plate through the connecting rope, the number of the mounting plate and the lug is 1:2, and the inside of the mounting plate is of a solid structure.
Preferably, the contained angle of second tuber pipe and first tuber pipe is 90, and first tuber pipe is "L" shape structure to the left end of first tuber pipe is the opening form setting, and the right-hand member of first tuber pipe is sealed form setting simultaneously, and the space of first tuber pipe inside is linked together through the space of second tuber pipe and casing main part inside.
Preferably, the grooves and the radiating fins are arranged in a staggered mode, and the radiating fins are arranged in a trapezoid structure.
Compared with the prior art, the invention has the beneficial effects that: the zero-phase digital filter is convenient for voice prompt based on remote control;
(1) The air flow type air conditioner is provided with the second air pipe and the first air pipe, and the air generated by heat dissipation in the shell body is conveniently conveyed to the right side of the first filter plate through the mutual matching of the second air pipe and the first air pipe, so that the air generated by heat dissipation in the shell body can blow the first filter plate leftwards, the air generated by heat dissipation is conveniently discharged, dust and impurities adhered to the first filter plate can be conveniently blown leftwards, the first filter plate is prevented from being blocked to influence voice prompt broadcasting work, and meanwhile, the heat of the air in the first air pipe is conveniently outwards diffused through the arrangement of the radiating fins, so that the air in the first air pipe can be conveniently and well blown to the first filter plate for dust removal;
(2) The pull rod is installed, the lug is pulled leftwards through the pull rod, the lug is pulled conveniently through the connecting rope, the lug is separated from the corresponding clamping groove, the first filter plate is convenient to detach, the first filter plate is convenient to clean in the later stage, the first filter plate and the connecting vertical rods are not on the same horizontal plane, and therefore the connecting vertical rods cannot influence the detaching work of the first filter plate in the later stage;
(3) Be fixed with the handle, rotate down the handle through manual for the handle drives and connects the horizontal pole and rotate, connects the horizontal pole and drives the threaded rod through the toper gear train structure and rotate, makes the threaded rod drive outside threaded connection's connection montant when rotatory and descends and extrude fixed sucking disc from this, thereby through fixed sucking disc's setting, is convenient for improve whole device's placement stability, avoids later stage whole device to receive the collision and take place the displacement.
Drawings
FIG. 1 is a schematic diagram of a front view structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1B according to the present invention;
FIG. 4 is a schematic view of a handle rotating top view structure according to the present invention;
FIG. 5 is a schematic top view of a first duct and a second duct connection according to the present invention;
FIG. 6 is a schematic view showing the bottom structure of the heat dissipating fin according to the present invention;
fig. 7 is a right-side view of the first filter plate of the present invention.
In the figure: 1. a housing body; 2. a handle; 3. connecting the cross bars; 4. a threaded rod; 5. connecting a vertical rod; 6. fixing a sucker; 7. a first filter plate; 8. a mounting plate; 81. a return spring; 82. a bump; 83. a connecting rope; 84. a pull rod; 85. a limiting block; 86. a limit groove; 9. a second air duct; 10. a groove; 11. a heat radiation fin; 12. a clamping groove; 13. a second filter plate; 14. a placement groove; 15. a first air duct; 16. and connecting the ends.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention provides a technical solution: a zero-phase digital filter convenient for voice prompt based on remote control comprises a shell body 1, a lifting handle 2, a connecting cross rod 3, a threaded rod 4, a connecting vertical rod 5, a fixed sucker 6, a first filter plate 7, a mounting plate 8, a return spring 81, a convex block 82, a connecting rope 83, a pull rod 84, a limiting block 85, a limiting groove 86, a second air pipe 9, a groove 10, a radiating fin 11, a clamping groove 12, a second filter plate 13, a placing groove 14, a first air pipe 15 and a connecting end 16, wherein the lifting handle 2 is arranged on the upper surface of the shell body 1, the bottom end of the lifting handle 2 is connected with the connecting cross rod 3 through screws, the connecting cross rod 3 is connected with a shell body 1 bearing, the left end and the right end of the connecting cross rod 3 are connected with the threaded rod 4 through a conical gear set, the bottom end of the threaded rod 4 is connected with the shell body 1 bearing, the upper outer side of the threaded rod 4 is connected with a connecting vertical rod 5 in a threaded manner, the bottom screw of the connecting vertical rod 5 is provided with a fixing suction cup 6, the left side surface of the shell body 1 is connected with a first filter plate 7 in a clamping manner, the inner screw of the first filter plate 7 is fixedly provided with a mounting plate 8, the bottom surface of the shell body 1 is internally provided with a second air pipe 9 in a nested manner, the outer side screw of the bottom surface of the shell body 1 is provided with a radiating fin 11, the bottom surface of the shell body 1 is provided with a groove 10, the left side surface of the shell body 1 is provided with a clamping groove 12, the left side surface of the shell body 1 is internally provided with a second filter plate 13, the upper surface of the shell body 1 is provided with a placing groove 14, the inside of the placing groove 14 is provided with a handle 2, the bottom surface of the shell body 1 is internally provided with a first air pipe 15 in a hot melt manner, the upper part of the first air pipe 15 is provided with the second air pipe 9, and the front side surface of the shell body 1 is provided with a connecting end 16 by a screw;
the handle 2 and the placing groove 14 are in an inverted U-shaped structure, the placing groove 14 is in concave-convex fit with the handle 2, the handle 2 and the placing groove 14 are arranged in one-to-one correspondence, and the handle 2 and the placing groove 14 are in an inverted U-shaped structure, and the placing groove 14 is in concave-convex fit with the handle 2, so that the handle 2 is conveniently rotated into the placing groove 14 for placement in the later period, and the connecting cross rod 3 is conveniently driven to rotate when the handle 2 rotates;
the number of the connecting cross rods 3 and the threaded rods 4 is 1:2, the connecting cross rods 3 and the threaded rods 4 are arranged in a vertical state, the 2 threaded rods 4 are symmetrically arranged about the vertical center line of the connecting cross rods 3, and the two threaded rods 4 can be driven to rotate simultaneously through the connecting cross rods 3 so that the positions of the connecting vertical rods 5 can be adjusted by the two threaded rods 4 simultaneously;
the connecting vertical rod 5 and the fixed sucker 6 form a lifting structure with the shell body 1 through the threaded rod 4, and the highest point of the fixed sucker 6 is higher than the lowest point of the radiating fin 11, so that the fixed sucker 6 is convenient to extrude by the connecting vertical rod 5 through lifting of the connecting vertical rod 5, so that the fixed sucker 6 is well adsorbed and fixed with a placement area, and the placement stability of the whole device is improved;
the first filter plate 7 is in concave-convex fit with the left side surface of the shell body 1, the mesh diameter inside the first filter plate 7 is larger than that inside the second filter plate 13, the first filter plate 7 and the connecting vertical rods 5 are not on the same vertical surface, and the first filter plate 7 is in concave-convex fit with the left side surface of the shell body 1 through the first filter plate 7, so that the first filter plate 7 can be conveniently installed and detached in the later stage;
the reset springs 81 are fixed inside the upper end and the lower end of the mounting plate 8 through screws, the top screws of the reset springs 81 are provided with the convex blocks 82, the bottom screws of the convex blocks 82 are provided with the connecting ropes 83, meanwhile, the bottom ends of the connecting ropes 83 are connected with the outer side screws of the right end of the pull rod 84, the upper side and the lower side of the right end of the pull rod 84 are provided with the limiting blocks 85 through screws, limiting grooves 86 are formed in the outer sides of the limiting blocks 85, the mounting plate 8 is fixed on the outer sides of the limiting grooves 86, and therefore the pulling stability of the pull rod 84 is conveniently improved through the arrangement of the limiting blocks 85 and the limiting grooves 86;
the protruding blocks 82 and the mounting plate 8 form a sliding structure through the connecting ropes 83, the number of the mounting plate 8 and the number of the protruding blocks 82 are 1:2, the inside of the mounting plate 8 is of a solid structure, and the protruding blocks 82 are conveniently separated from the clamping grooves 12 through sliding of the protruding blocks 82 so as to conveniently detach the first filter plate 7;
the included angle between the second air pipe 9 and the first air pipe 15 is 90 degrees, the first air pipe 15 is of an L-shaped structure, the left end of the first air pipe 15 is in an opening shape, meanwhile, the right end of the first air pipe 15 is in a sealing shape, and the space inside the first air pipe 15 is communicated with the space inside the shell body 1 through the second air pipe 9, so that the heat gas inside the shell body 1 is conveniently conveyed through the cooperation of the second air pipe 9 and the first air pipe 15, and impurities on the surface of the first filter plate 7 are conveniently blown off by the heat gas in the later period;
the grooves 10 and the radiating fins 11 are arranged in a staggered manner, and the radiating fins 11 are arranged in a trapezoid structure, so that the heat in the second air pipe 9 is conducted out by the radiating fins 11 in the later period conveniently.
The working principle of the embodiment is as follows: when the zero-phase digital filter based on remote control and convenient for voice prompt is used, firstly, as shown in an attached drawing 1, a user holds a handle 2 by hand to enable the whole device to be lifted into a working area, after the handle reaches the working area, the bottom of the whole device is placed in a placement area, then a worker manually rotates the handle 2 backwards, as shown in an attached drawing 4, the handle 2 is enabled to rotate into a placement groove 14 in the upper surface of a shell main body 1, then a fastening screw in threaded connection with the left end of the handle 2 is enabled to rotate, the bottom end of the fastening screw is enabled to be in screw connection with the shell main body 1, so that stability of the handle 2 after rotation is guaranteed, meanwhile, the handle 2 drives a connecting cross rod 3 fixed by the screw at the bottom end to rotate with the shell main body 1, the connecting cross rod 3 is in bearing connection with the shell main body 1 through a conical gear set structure at the left end and the right end, and the threaded rod 4 are connected with the shell main body 1 through bearings, and accordingly, the threaded rod 4 drives a vertical rod 5 in threaded connection with the outer side to descend when rotating, and accordingly the connecting rod 5 extrudes a fixing sucker 6 at the bottom end, so that the fixing sucker 6 is well fixed in the placement area and the whole placement area is well connected with the placement area, the whole device is prevented from being placed in a stable manner, and the placement device is prevented from being subjected to the stable displacement after the whole device is placed in the place, and stable displacement is convenient to be caused;
then the external connecting wires are connected with the connecting end 16, the whole device starts to carry out filtering operation, a heat dissipation mechanism in the shell body 1 dissipates heat of electric elements in the whole device in the operation process, a certain amount of heat gas is generated and needs to be discharged, at the moment, as shown in the attached drawings and the attached drawings, the heat gas in the shell body 1 enters the corresponding first air pipes 15 through the second air pipes 9, and then is discharged to the right side of the first filter plates 7 through the opening ends at the left ends of the first air pipes 15, and meanwhile, heat energy of the heat gas in the first air pipes 15 can be conducted out through the heat dissipation fins 11 so as to facilitate heat discharge, so that the heat gas blows impurities and dust adhered on the first filter plates 7 leftwards, and further, the mesh holes in the first filter plates 7 are prevented from being blocked, and voice prompts emitted by speakers in the shell body 1 are well spread out;
when the first filter plate 7 needs to be detached for cleaning, a user manually pulls the pull rod 84 leftwards as shown in fig. 2, at this time, the limiting block 85 on the outer side of the pull rod 84 slides in the limiting groove 86, the pull rod 84 is guaranteed to be pulled stably, two connecting ropes 83 fixed by external screws are pulled when the pull rod 84 moves, therefore, the two connecting ropes 83 synchronously pull the protruding blocks 82 fixed by the top screws, the protruding blocks 82 are separated from the corresponding clamping grooves 12, then the first filter plate 7 is pulled leftwards, the sealing gasket of the first filter plate 7 and the outer side wall of the shell body 1 are separated, then the first filter plate 7 can be detached as shown in fig. 7, the first filter plate 7 is cleaned conveniently, the first filter plate 7 is used well in the later stage, voice prompt work of the whole device is facilitated, after the work is finished, the whole device needs to be moved to other work areas as shown in the above, the fastening screws connected with the left end of the handle 2 are rotated, the fastening screws are separated from the bottom end of the shell body 1 through internal threads, the fastening screws are separated from the shell body 1, and then the handle is placed in the opposite direction, and the handle is separated from the shell body through the vertical state as shown in the other work areas, and the vertical state is kept in the vertical state, and the handle is separated from the shell body through the vertical state as shown in the vertical state, and the suction cup is placed in the state, and the state is separated from the handle is easy.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. Zero-phase digital filter convenient to carry out voice prompt based on remote control, including casing main part (1), second filter (13), first tuber pipe (15) and connection end (16), its characterized in that: the utility model discloses a novel air conditioner, including casing main part (1), handle (2) are provided with on the upper surface of casing main part (1), and the bottom and the connection horizontal pole (3) screw connection of handle (2) to connect horizontal pole (3) and casing main part (1) bearing connection, both ends all are connected with threaded rod (4) through the taper gear group about connecting horizontal pole (3), and the bottom and the casing main part (1) bearing connection of threaded rod (4), and the top outside threaded connection of threaded rod (4) has connection montant (5), fixed suction cup (6) are installed to the bottom screw of connection montant (5), the left surface block of casing main part (1) is connected with first filter (7), and the internal screw fixation of first filter (7) has mounting panel (8) to the bottom surface internal nesting of casing main part (1) installs second tuber pipe (9), radiating fin (11) are installed to the bottom outside screw of casing main part (1), and recess (10) are seted up to the bottom surface of casing main part (1), draw-in groove (12) are seted up on the left side of casing main part (1), and the inside groove (14) are set up on the inside of casing main part (1), the first air pipe (15) is fixed in the bottom surface of the shell body (1) through screws, the second air pipe (9) is installed above the first air pipe (15) through hot melting, and the connecting end (16) is installed on the front side surface of the shell body (1) through screws.
2. The remote control based zero-phase digital filter for facilitating voice prompts according to claim 1, wherein: the handle (2) and the placing groove (14) are of an inverted U-shaped structure, the placing groove (14) is in concave-convex fit with the handle (2), and the handle (2) and the placing groove (14) are arranged in one-to-one correspondence.
3. The remote control based zero-phase digital filter for facilitating voice prompts according to claim 1, wherein: the number of the connecting cross rods (3) and the number of the threaded rods (4) are 1:2, the connecting cross rods (3) and the threaded rods (4) are arranged in a vertical state, and the 2 threaded rods (4) are symmetrically arranged about the vertical center line of the connecting cross rods (3).
4. The remote control based zero-phase digital filter for facilitating voice prompts according to claim 1, wherein: the connecting vertical rod (5) and the fixing sucker (6) form a lifting structure with the shell body (1) through the threaded rod (4), and the highest point of the fixing sucker (6) is higher than the lowest point of the radiating fin (11).
5. The remote control based zero-phase digital filter for facilitating voice prompts according to claim 1, wherein: the first filter plate (7) is in concave-convex fit with the left side face of the shell body (1), the mesh diameter of the inside of the first filter plate (7) is larger than that of the inside of the second filter plate (13), and the first filter plate (7) and the connecting vertical rod (5) are not on the same vertical plane.
6. The remote control based zero-phase digital filter for facilitating voice prompts according to claim 1, wherein: the inside equal screw fixation of upper and lower both ends of mounting panel (8) has reset spring (81), and the top screw of reset spring (81) installs lug (82), and connecting rope (83) are installed to the bottom screw of lug (82), the bottom of connecting rope (83) and the right-hand member outside screw connection of pull rod (84) simultaneously, and both sides are all installed to the equal screw about the right-hand member of pull rod (84) stopper (85), and the outside of stopper (85) is provided with spacing groove (86), and the outside of spacing groove (86) is fixed with mounting panel (8).
7. The remote control based zero-phase digital filter for facilitating voice prompts of claim 6, wherein: the lug (82) and the mounting plate (8) form a sliding structure through the connecting rope (83), the number of the mounting plate (8) and the number of the lug (82) are 1:2, and the inside of the mounting plate (8) is of a solid structure.
8. The remote control based zero-phase digital filter for facilitating voice prompts according to claim 1, wherein: the contained angle of second tuber pipe (9) and first tuber pipe (15) is 90, and first tuber pipe (15) are "L" shape structure to the left end of first tuber pipe (15) is the opening form setting, and the right-hand member of first tuber pipe (15) is sealed form setting simultaneously, and the space of first tuber pipe (15) inside is linked together through the space of second tuber pipe (9) with casing main part (1) inside.
9. The remote control based zero-phase digital filter for facilitating voice prompts according to claim 1, wherein: the grooves (10) and the radiating fins (11) are arranged in a staggered mode, and the radiating fins (11) are arranged in a trapezoid structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010155210.3A CN111245402B (en) | 2020-03-09 | 2020-03-09 | Zero-phase digital filter convenient for voice prompt based on remote control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010155210.3A CN111245402B (en) | 2020-03-09 | 2020-03-09 | Zero-phase digital filter convenient for voice prompt based on remote control |
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| CN111245402B true CN111245402B (en) | 2023-07-07 |
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| CN109980646B (en) * | 2019-04-14 | 2024-01-26 | 浙江星明智能电气科技有限公司 | Modularized active filter and compensation method thereof |
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