CN114124269A - Cross-local area network broadcasting equipment based on digital network system and domestic platform - Google Patents
Cross-local area network broadcasting equipment based on digital network system and domestic platform Download PDFInfo
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- CN114124269A CN114124269A CN202111395493.XA CN202111395493A CN114124269A CN 114124269 A CN114124269 A CN 114124269A CN 202111395493 A CN202111395493 A CN 202111395493A CN 114124269 A CN114124269 A CN 114124269A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/59—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to the technical field of broadcasting equipment, and discloses cross-local area network broadcasting equipment based on a digital network system and a localization platform. This cross local area network broadcasting equipment based on digital network system and localization platform, when long-time use leads to inside temperature to rise, can make heat response ball take place to warp under the temperature variation, and then can make push rod extrusion deformation ball, and then can make extrusion deformation ball take place to deform under the extrusion effect, and then can promote the arc pole to extrude the elastic rod, with this can make the elastic rod take place to warp, can promote piston baffle to take place to remove under the deformation effect, and then the air inlet duct exposes, reach the radiating purpose in the device inside, and simultaneously, such setting, prevented that the air inlet duct from keeping the state of opening for a long time, and lead to a large amount of dusts to enter into the device's inside.
Description
Technical Field
The invention relates to the technical field of broadcasting equipment, in particular to cross-local area network broadcasting equipment based on a digital network system and a domestic platform.
Background
Currently, broadcasting equipment is applied more and more widely based on the advantage of being able to transmit messages such as emergency situations (e.g., disaster messages) and related precautionary measures, and regular events (e.g., daily weather conditions) to related personnel in time, such as being applied to public places, campuses, villages, and large conferences.
The existing broadcasting equipment is generally arranged in the open air, so that a large amount of dust is adsorbed on the broadcasting equipment, and if the dust is not cleaned in time, the transmission of sound is seriously influenced, the volume of the broadcasting is influenced, and the broadcasting effect is further influenced.
Disclosure of Invention
The present invention is directed to a cross-lan broadcasting device based on a digital network system and a localization platform, so as to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a cross-LAN broadcasting device based on a digital network system and a domestic platform comprises a broadcasting tube, wherein a connecting tube is sleeved at the middle shaft of the outer surface of the broadcasting tube, a supporting seat is fixedly connected to the outer surface of the bottom side of the connecting tube, voice expanding coils are fixedly connected to the left side and the right side of the broadcasting tube respectively, a sound player is fixedly connected to the middle shaft of the outer surface of the left end and the right end of the broadcasting tube, a dust screen is fixedly connected to the outer surface of the voice expanding coils, a partition ring is fixedly connected to the inside of the broadcasting tube, a plurality of small holes are formed in the partition ring, a heat sensing ball is fixedly connected between the partition ring and the broadcasting tube, the inside of the connecting tube is hollowed out, an air inlet slot is formed at the connection position of the bottom of the connecting tube and the broadcasting tube, a push rod is fixedly connected to the top of the heat sensing ball, one end of the push rod, which is far away from the heat sensing ball, slidably penetrates through the outer wall of the connecting tube and extends to the inside, the extension part of the push rod is fixedly connected with an extrusion deformation ball.
Preferably, the side wall of the extrusion deformation ball is fixedly connected with an arc-shaped rod, one end of the arc-shaped rod, far away from the extrusion deformation ball, is fixedly connected with an elastic rod, the connecting pipe is provided with an air inlet hole, a middle shaft of the elastic rod is fixedly connected with a piston baffle, and the piston baffle slides to penetrate through the inside of the air inlet hole and extends to the outside.
Preferably, a movable straight rod is fixedly connected to the side wall of the heat sensing ball, and an air extrusion plate is fixedly connected to one end, far away from the heat sensing ball, of the movable straight rod.
Preferably, the gas extrusion plate is sleeved on the outer surface of the partition ring, and the left end and the right end of the broadcast pipe are respectively provided with a plurality of gas circulation holes.
Preferably, the inner wall fixedly connected with of dust screen swings the spring, swing the spring and face the setting of gas circulation hole, the one end fixedly connected with swing ball that the dust screen was kept away from to the swing spring, it has the arc dwang to articulate on the lateral wall of swing ball, the one end fixedly connected with rubber deformation circle that the swing ball was kept away from to the arc dwang.
Preferably, the side wall of the rubber deformation ring is fixedly connected with bristles, and one ends of the bristles, which are far away from the rubber deformation ring, are in contact with the inner wall of the dustproof net.
Preferably, one side of the gas extrusion plate, which is far away from the moving straight rod, is fixedly connected with a reinforcing straight rod, and one end of the reinforcing straight rod, which is far away from the gas extrusion plate, penetrates through the gas circulation hole in a sliding manner and extends to the outer side.
Preferably, the extending part of the reinforcing straight rod is fixedly connected with an auxiliary connecting ring, one side of the auxiliary connecting ring, which is far away from the reinforcing straight rod, is fixedly connected with a striking rod, and one side of the striking rod, which is far away from the auxiliary connecting ring, is not in contact with the dust screen.
Preferably, the one end fixedly connected with reinforcing spring that auxiliary connection circle was kept away from to the striking pole, the one end fixedly connected with striking reinforcing ball that the striking pole was kept away from to the reinforcing spring, striking reinforcing ball unsettled setting.
Compared with the prior art, the invention has the beneficial effects that:
(1) this cross local area network broadcasting equipment based on digital network system and localization platform, when long-time use leads to inside temperature to rise, can make heat response ball take place to warp under the temperature variation, and then can make push rod extrusion deformation ball, and then can make extrusion deformation ball take place to deform under the extrusion effect, and then can promote the arc pole to extrude the elastic rod, with this can make the elastic rod take place to warp, can promote piston baffle to take place to remove under the deformation effect, and then the air inlet duct exposes, reach the radiating purpose to the device inside, and simultaneously, such setting, prevented that the air inlet duct from keeping the open state for a long time, and lead to a large amount of dusts to enter into the device's inside.
(2) This cross local area network broadcasting equipment based on digital network system and localization platform, when the heat response ball takes place to warp, can make gaseous stripper plate lateral shifting under the effect of removing the straight-bar, gaseous stripper plate's lateral shifting, can have an instantaneous lateral extrusion force to the inside gas of the device, under the effect of this extrusion force, gaseous can increase the power of blowing through the gas circulation hole, and then under this effect, can utilize the power of blowing of air current to clear up the dust on the dust screen, with this can prevent that the dust on the dust screen is too many and influence the broadcast effect.
(3) This local area network broadcasting equipment strides based on digital network system and localization platform can make the pendulum ball take place the swing back and forth under the effect of swing spring under the effect that the air current promoted, under the swing effect, can make the rubber deformation circle along the outer wall round trip movement of dust screen under the effect of arc dwang, and then can drive the brush hair along dust screen round trip movement to this can strengthen the clearance effect to the dust screen.
(4) This local area network broadcasting equipment strides based on digital network system and localization platform under the effect of gas stripper plate round trip movement, can make supplementary clamping ring drive the striking pole and strike the dust screen under the effect of reinforcing straight-bar to and then under the effect of striking, can make the dust screen take place to shake to this dust screen's dust on can being clear away to the shake effect that can utilize the dust screen, and then the reinforcing is to the clearance effect of dust screen.
(5) This local area network broadcasting equipment strides based on digital network system and localization platform utilizes its inertial force to make striking reinforcing ball swing back and forth under the effect of reinforcing spring when the impact bar round trip movement, and then can increase the frequency of knocking to the dust screen, and then the reinforcing is to the clearance effect of dust screen.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall construction of the present invention;
FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the whole structure of the sound amplifying ring according to the present invention;
FIG. 5 is a schematic view of the overall structure of the gas compression plate according to the present invention;
fig. 6 is a schematic view of the overall structure of the impact enhancement ball of the present invention.
In the figure: 1. a broadcast pipe; 11. a connecting pipe; 12. a supporting seat; 13. expanding the voice coil; 14. a sound player; 15. a dust screen; 2. a diaphragm ring; 21. a small hole; 22. a heat sensing ball; 3. an air inlet groove; 31. a push rod; 32. extruding the deformed ball; 33. an arcuate bar; 4. an elastic rod; 41. an air inlet; 42. a piston baffle; 5. moving the straight rod; 51. a gas extrusion plate; 52. a gas flow aperture; 6. a swinging spring; 61. swinging the ball; 62. an arc-shaped rotating rod; 63. a rubber deformation ring; 64. brushing; 7. a reinforcing straight rod; 71. an auxiliary connecting ring; 72. a striker bar; 8. a reinforcing spring; 81. the reinforcing ball is hit.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a cross-LAN broadcasting device based on a digital network system and a localization platform comprises a broadcasting tube 1, wherein the purpose of the setting is to facilitate broadcasting, a connecting tube 11 is sleeved at the center axis of the outer surface of the broadcasting tube 1, the purpose of the setting is to facilitate auxiliary gas to enter, a supporting seat 12 is fixedly connected to the outer surface of the bottom side of the connecting tube 11, the purpose of the setting is to facilitate the whole device to be supported, voice amplifying rings 13 are respectively and fixedly connected to the left side and the right side of the broadcasting tube 1, the purpose of the setting is to facilitate sound amplifying, sound players 14 are fixedly connected to the center axes of the outer surfaces of the left end and the right end of the broadcasting tube 1, the purpose of the setting is to facilitate sound playing, a dustproof net 15 is fixedly connected to the outer surface of the sound amplifying ring 13, the purpose of the setting is to facilitate dust prevention, a baffle ring 2 is fixedly connected to the inside of the broadcasting tube 1, and the purpose of the setting is to facilitate the protection of the internal structure, the baffle ring 2 is provided with a plurality of small holes 21, the purpose of the arrangement is to facilitate the gas entering, a heat sensing ball 22 is fixedly connected between the baffle ring 2 and the broadcasting tube 1, the purpose of the arrangement is to facilitate the utilization of the internal temperature change, the inside of the connecting tube 11 is hollowed out, the purpose of the arrangement is to facilitate the arrangement of the internal structure, the connecting part of the bottom of the connecting tube 11 and the broadcasting tube 1 is provided with an air inlet groove 3, the purpose of the arrangement is to facilitate the gas entering, the top of the heat sensing ball 22 is fixedly connected with a push rod 31, the purpose of the arrangement is to facilitate the utilization of the temperature change, one end of the push rod 31, which is far away from the heat sensing ball 22, slides to penetrate through the outer wall of the connecting tube 11 and extends to the inside, the purpose of the arrangement is to facilitate the movement of the push rod 31, and an extension part of the push rod 31 is fixedly connected with an extrusion deformation ball 32, this is provided for the purpose of facilitating the pressing effect by the movement of the push rod 31.
Preferably, in this embodiment, in order to facilitate the entering of gas to achieve the internal heat dissipation, the side wall of the extrusion deformation ball 32 is fixedly connected with the arc rod 33, the purpose of setting up this way is to facilitate the deformation of utilizing the extrusion deformation ball 32, one end of the arc rod 33 far away from the extrusion deformation ball 32 is fixedly connected with the elastic rod 4, the purpose of setting up this way is to facilitate the extrusion of utilizing the arc rod 33, the air inlet hole 41 has been seted up on the connecting pipe 11, the purpose of setting up this way is to facilitate the entering of gas, the axis department fixedly connected with piston baffle 42 of the elastic rod 4, the purpose of setting up this way is to facilitate blocking the air inlet hole 41, the piston baffle 42 slides and runs through the inside of the air inlet hole 41 and extends to the outside, the purpose of setting up this way is to facilitate the movement of the piston baffle 42.
Preferably, in the present embodiment, in order to facilitate changing the internal air pressure, the side wall of the heat sensing ball 22 is fixedly connected with a movable straight rod 5, which is provided to facilitate utilizing the deformation effect of the heat sensing ball 22, and one end of the movable straight rod 5, which is far away from the heat sensing ball 22, is fixedly connected with an air pressing plate 51, which is provided to facilitate pressing the internal air.
Preferably, in this embodiment, in order to facilitate the gas to flow under the squeezing effect, the gas squeezing plate 51 is sleeved on the outer surface of the partition ring 2, so as to facilitate the movement of the gas squeezing plate 51, a plurality of gas flow holes 52 are respectively opened at the left and right ends of the broadcast pipe 1, and so as to facilitate the gas flow.
Preferably, in this embodiment, in order to facilitate dust removal on the dust screen 15, a swinging spring 6 is fixedly connected to an inner wall of the dust screen 15, the swinging spring 6 is arranged to facilitate utilization of a blowing force of the gas, the swinging spring 6 is arranged to face the gas flowing hole 52, the swinging spring 6 is arranged to facilitate utilization of the blowing force of the gas, a swinging ball 61 is fixedly connected to one end of the swinging spring 6, which is away from the dust screen 15, the swinging ball 61 is arranged to facilitate movement of the swinging ball 61 back and forth, an arc-shaped rotating rod 62 is hinged to a side wall of the swinging ball 61, the arc-shaped rotating rod 62 is arranged to facilitate rotation of the arc-shaped rotating rod 62 under a swinging effect of the swinging ball 61, a rubber deformation ring 63 is fixedly connected to one end of the arc-shaped rotating rod 62, which is away from the swinging ball 61, and the arc-shaped rotating rod 62 is arranged to facilitate utilization of a rotating effect of the arc-shaped rotating rod 62.
Preferably, in the present embodiment, in order to facilitate cleaning of the dust screen 15, the bristles 64 are fixedly connected to the side wall of the rubber deformation ring 63, and are arranged to facilitate cleaning of the dust screen 15, and one end of the bristles 64 away from the rubber deformation ring 63 is arranged to contact with the inner wall of the dust screen 15, and is arranged to facilitate movement of the bristles 64.
Preferably, in the present embodiment, in order to facilitate enhanced cleaning of the dust screen 15, the side of the gas compression plate 51 away from the moving straight rod 5 is fixedly connected with the enhancing straight rod 7, and this is provided to facilitate the auxiliary arrangement of the striking rod 72, and one end of the enhancing straight rod 7 away from the gas compression plate 51 slides through the gas circulation hole 52 and extends to the outside, and this is provided to facilitate the movement of the enhancing straight rod 7.
Preferably, in the present embodiment, in order to facilitate the impact on the dust screen 15, the extending portion of the reinforcing straight rod 7 is fixedly connected with the auxiliary connecting ring 71, the purpose of the setting is to facilitate the auxiliary connection of the striking rod 72, one side of the auxiliary connecting ring 71 away from the reinforcing straight rod 7 is fixedly connected with the striking rod 72, the purpose of the setting is to facilitate the striking on the dust screen 15, one side of the striking rod 72 away from the auxiliary connecting ring 71 is not in contact with the dust screen 15, and the purpose of the setting is to facilitate the striking on the dust screen 15.
Preferably, in this embodiment, in order to further enhance the cleaning effect on the dust screen 15, one end of the striking rod 72 away from the auxiliary connecting ring 71 is fixedly connected with the reinforcing spring 8, and the purpose of this setting is to facilitate the auxiliary setting of the impact reinforcing ball 81, one end of the reinforcing spring 8 away from the striking rod 72 is fixedly connected with the impact reinforcing ball 81, the purpose of this setting is to facilitate the enhancement of the impact effect on the dust screen 15, and the impact reinforcing ball 81 is suspended, and the purpose of this setting is to facilitate the swing of the impact reinforcing ball 81.
The working principle is as follows:
when the internal temperature rises due to long-term use, the heat sensing ball 22 can deform under the temperature change, the push rod 31 can extrude the extrusion deformation ball 32, the extrusion deformation ball 32 can deform under the extrusion effect, the arc-shaped rod 33 can be pushed to extrude the elastic rod 4, so that the elastic rod 4 can deform, the piston baffle plate 42 can be pushed to move under the deformation effect, the air inlet groove 3 is exposed, and the purpose of radiating the internal part of the device is achieved, meanwhile, the arrangement prevents the air inlet groove 3 from being kept in an open state for a long time, so that a large amount of dust enters the internal part of the device, secondly, when the heat sensing ball 22 deforms, the gas extrusion plate 51 can transversely move under the action of the moving straight rod 5, and the transverse movement of the gas extrusion plate 51 can generate instantaneous transverse extrusion force on the gas in the device, under the effect of this extrusion force, gaseous can increase the power of blowing through gas circulation hole 52, and then under this effect, can utilize the power of blowing of air current to clear up the dust on the dust screen 15 to this can prevent that the dust from going up 15 too much and influencing the broadcast effect.
Meanwhile, under the effect of air flow pushing, the swing ball 61 can swing back and forth under the action of the swing spring 6, under the swing effect, the rubber deformation ring 63 can move back and forth along the outer wall of the dust screen 15 under the action of the arc-shaped rotating rod 62, and then the brush bristles 64 can be driven to move back and forth along the dust screen 15, so that the cleaning effect on the dust screen 15 can be enhanced, secondly, under the effect of back and forth movement of the gas extrusion plate 51, the auxiliary connecting ring 71 can drive the impact rod 72 to knock the dust screen 15 under the action of the reinforcing straight rod 7, and further under the knocking effect, the dust screen 15 can be shaken, so that the dust on the dust screen 15 can be cleaned by utilizing the shaking effect of the dust screen 15, and further the cleaning effect on the dust screen 15 can be enhanced, and finally, when the impact rod 72 moves back and forth, the impact reinforcing ball 81 can swing back and forth under the action of the reinforcing spring 8 by utilizing the inertia force of the impact rod, and then the frequency of knocking the dust screen 15 can be increased, and the cleaning effect of the dust screen 15 is enhanced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A cross-LAN broadcasting equipment based on digital network system and localization platform, includes broadcasting pipe (1), characterized by that: a connecting pipe (11) is sleeved at the middle shaft of the outer surface of the broadcasting pipe (1), the outer surface of the bottom side of the connecting pipe (11) is fixedly connected with a supporting seat (12), the left side and the right side of the broadcasting pipe (1) are respectively and fixedly connected with a voice expanding coil (13), the middle shafts of the outer surfaces of the left end and the right end of the broadcasting pipe (1) are fixedly connected with a sound player (14), and the outer surface of the voice expanding coil (13) is fixedly connected with a dust screen (15);
a baffle ring (2) is fixedly connected inside the broadcasting tube (1), a plurality of small holes (21) are formed in the baffle ring (2), and a heat induction ball (22) is fixedly connected between the baffle ring (2) and the broadcasting tube (1);
the inside of connecting pipe (11) is hollowed out and is set up, air inlet duct (3) have been seted up with the junction of broadcast pipe (1) to the bottom of connecting pipe (11), top fixedly connected with push rod (31) of heat response ball (22), the one end that heat response ball (22) was kept away from in push rod (31) slides and runs through the outer wall of connecting pipe (11) and extends to inside, the extension fixedly connected with extrusion deformation ball (32) of push rod (31).
2. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 1, wherein: the utility model discloses a press for the building of extrusion deformation ball, including extrusion deformation ball (32), the lateral wall fixedly connected with arc pole (33) of extrusion deformation ball (32), one end fixedly connected with flexible pole (4) that extrusion deformation ball (32) were kept away from in arc pole (33), inlet port (41) have been seted up on connecting pipe (11), axis department fixedly connected with piston baffle (42) of flexible pole (4), piston baffle (42) slide and run through the inside of inlet port (41) and extend to the outside.
3. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 2, wherein: the side wall of the heat induction ball (22) is fixedly connected with a movable straight rod (5), and one end, far away from the heat induction ball (22), of the movable straight rod (5) is fixedly connected with a gas extrusion plate (51).
4. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 3, wherein: the gas extrusion plate (51) is sleeved on the outer surface of the partition plate ring (2), and a plurality of gas circulation holes (52) are respectively formed in the left end and the right end of the broadcast tube (1).
5. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 4, wherein: inner wall fixedly connected with swing spring (6) of dust screen (15), swing spring (6) are just facing gas flow hole (52) and are set up, the one end fixedly connected with swing ball (61) of dust screen (15) are kept away from in swing spring (6), it has arc dwang (62) to articulate on the lateral wall of swing ball (61), the one end fixedly connected with rubber deformation circle (63) of swing ball (61) are kept away from in arc dwang (62).
6. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 5, wherein: the side wall of the rubber deformation ring (63) is fixedly connected with bristles (64), and one end, far away from the rubber deformation ring (63), of each bristle (64) is in contact with the inner wall of the dustproof net (15).
7. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 6, wherein: one side of the gas extrusion plate (51) far away from the movable straight rod (5) is fixedly connected with a reinforcing straight rod (7), and one end of the reinforcing straight rod (7) far away from the gas extrusion plate (51) penetrates through the gas circulation hole (52) in a sliding mode and extends to the outer side.
8. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 7, wherein: an extending part of the reinforcing straight rod (7) is fixedly connected with an auxiliary connecting ring (71), and one side, far away from the reinforcing straight rod (7), of the auxiliary connecting ring (71) is fixedly connected with an impact rod (72);
the side of the impact rod (72) far away from the auxiliary connecting ring (71) is not contacted with the dust screen (15).
9. The cross-LAN broadcasting device based on the digital network system and the localization platform according to claim 8, wherein: one end of the impact rod (72), which is far away from the auxiliary connecting ring (71), is fixedly connected with a reinforcing spring (8), and one end of the reinforcing spring (8), which is far away from the impact rod (72), is fixedly connected with an impact reinforcing ball (81);
the impact enhancement balls (81) are arranged in a suspended manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395493.XA CN114124269A (en) | 2021-11-23 | 2021-11-23 | Cross-local area network broadcasting equipment based on digital network system and domestic platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111395493.XA CN114124269A (en) | 2021-11-23 | 2021-11-23 | Cross-local area network broadcasting equipment based on digital network system and domestic platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114124269A true CN114124269A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111395493.XA Pending CN114124269A (en) | 2021-11-23 | 2021-11-23 | Cross-local area network broadcasting equipment based on digital network system and domestic platform |
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| Country | Link |
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| CN (1) | CN114124269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117118551A (en) * | 2023-10-25 | 2023-11-24 | 福建省泉州高速公路有限公司 | Emergency broadcasting device for expressway and tunnel |
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| CN209576014U (en) * | 2019-01-15 | 2019-11-05 | 珠海志威科技有限公司 | A kind of dust guard of the wireless Intelligent campus broadcasting equipment of high impedance |
| CN211821429U (en) * | 2020-03-08 | 2020-10-30 | 南京双晨信息科技有限公司 | Emergency broadcasting equipment mounting structure |
| CN113451005A (en) * | 2021-06-07 | 2021-09-28 | 刘伟 | Transformer electric cabinet box |
| CN113669663A (en) * | 2021-08-13 | 2021-11-19 | 莫银琪 | LED ceiling lighting lamp |
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2021
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030063754A1 (en) * | 2001-10-02 | 2003-04-03 | Mears Raymond L. | Method and apparatus for a portable public address system |
| CN209576014U (en) * | 2019-01-15 | 2019-11-05 | 珠海志威科技有限公司 | A kind of dust guard of the wireless Intelligent campus broadcasting equipment of high impedance |
| CN211821429U (en) * | 2020-03-08 | 2020-10-30 | 南京双晨信息科技有限公司 | Emergency broadcasting equipment mounting structure |
| CN113451005A (en) * | 2021-06-07 | 2021-09-28 | 刘伟 | Transformer electric cabinet box |
| CN113669663A (en) * | 2021-08-13 | 2021-11-19 | 莫银琪 | LED ceiling lighting lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117118551A (en) * | 2023-10-25 | 2023-11-24 | 福建省泉州高速公路有限公司 | Emergency broadcasting device for expressway and tunnel |
| CN117118551B (en) * | 2023-10-25 | 2023-12-19 | 福建省泉州高速公路有限公司 | Emergency broadcasting device for expressway and tunnel |
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Application publication date: 20220301 |