CN113364548A - Campus broadcast pushing equipment for second classroom and pushing method thereof - Google Patents
Campus broadcast pushing equipment for second classroom and pushing method thereof Download PDFInfo
- Publication number
- CN113364548A CN113364548A CN202010149657.XA CN202010149657A CN113364548A CN 113364548 A CN113364548 A CN 113364548A CN 202010149657 A CN202010149657 A CN 202010149657A CN 113364548 A CN113364548 A CN 113364548A
- Authority
- CN
- China
- Prior art keywords
- board
- wireless
- broadcast
- pushing
- classroom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000006855 networking Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/55—Push-based network services
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Transmitters (AREA)
Abstract
The invention discloses campus broadcast pushing equipment for a second classroom and a pushing method thereof, wherein the campus broadcast pushing equipment comprises a remote controller, the remote controller is connected with a power amplifier, the power amplifier is connected with a wireless receiving board through a wireless transmission antenna, the wireless receiving board is connected with a signal processing board, the signal receiving board is connected with a sound amplifying loudspeaker in portable broadcasting equipment, the portable broadcasting equipment comprises a vehicle body, movable wheels are arranged at the bottom of the vehicle body, broadcast display screens are arranged on two sides of the vehicle body, heat dissipation holes are formed in the upper portion of each broadcast display screen, a teaching aid cabinet is arranged on one side of the vehicle body, a battery pack is arranged at the bottom of an inner cavity of the vehicle body, a vehicle top platform is arranged on the upper portion of the vehicle body, and the sound amplifying loudspeaker is arranged on the side of the vehicle top platform. The wireless node technology of the invention has flexible networking, does not need to embed a large amount of wired networks, and can arbitrarily set the related matters of directional broadcasting and pushing the second classroom.
Description
Technical Field
The invention relates to the technical field of campus pushing equipment, in particular to campus broadcasting pushing equipment for a second classroom and a pushing method thereof.
Background
The campus broadcasting system is one of low-power FM broadcasting, and many colleges, schools and even elementary schools now use campus FM broadcasting to play English programs or other programs in large quantities, and the frequency range is usually between 76 and 87MHz, that is, the campus broadcasting system can be received by a common television accompanying sound radio. Some FM radios now directly extend the frequency to 76-108MHz, which is sufficient for campus broadcasting.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a campus broadcasting push device and a pushing method thereof for a second classroom, which are based on a wireless node technology, have flexible networking, do not need to embed a large amount of wired networks, and can arbitrarily set up matters related to directional broadcasting and pushing the second classroom.
According to the campus broadcasting pushing equipment and the pushing method thereof used for the second classroom, the campus broadcasting pushing equipment comprises a remote controller, the remote controller is connected with a power amplifier, the power amplifier is connected with a wireless receiving board through a wireless transmission antenna, the wireless receiving board is connected with a signal processing board, the signal receiving board is connected with a loudspeaker in portable broadcasting equipment, the portable broadcasting equipment comprises a vehicle body, movable wheels are arranged at the bottom of the vehicle body, broadcasting display screens are arranged on two sides of the vehicle body, heat dissipation holes are formed above the broadcasting display screens, a teaching aid cabinet is arranged on one side of the vehicle body, a battery pack is arranged at the bottom of an inner cavity of the vehicle body, a vehicle top platform is arranged above the vehicle body, the loudspeaker is arranged on the side of the vehicle top platform, a wireless transmitter is arranged at the top end in the vehicle top platform, and an antenna rotating shaft is arranged at the top of the wireless transmitter, the antenna rotating shaft is connected with the wireless transmission antenna. And a solar panel is arranged above the roof platform.
Preferably, the wireless transmitter includes the circuit board, the wireless receiving board is installed to circuit board one side top, be connected with treater, tuner board and digital demodulation board on the wireless receiving board, wireless receiving board opposite side top is equipped with wireless transmission and connects, wireless transmission connects the upper end and is equipped with antenna interface, the circuit board other end is equipped with signal processing board.
Preferably, the signal processing board is in signal connection with the wireless receiving board through the processor, and the tuner board is in signal connection with the wireless receiving board.
Preferably, group battery and solar panel electricity are connected, the group battery is connected with the broadcast display screen electricity, the group battery is connected with the public address loudspeaker electricity, the group battery is connected with wireless transmitter electricity.
Preferably, the remote controller is wirelessly connected with the wireless receiving board.
Preferably, the broadcast display screen is an LED broadcast display screen.
Preferably, a restorer is arranged in the wireless receiving board, a serial port module is arranged in the power amplifier, and a clock module is arranged in the remote controller.
Preferably, the pushing method comprises:
s1, the remote controller initializes the system manually, and codes the number of the broadcast area and the loudspeaker by the computer;
s2, editing the content of the second classroom, sending the broadcast signal with the code by the remote controller, receiving the broadcast signal with the code by the wireless receiving board, and transmitting the broadcast signal to the signal processing board through the processor:
s3: after the signal processing board processes the broadcast signal with codes sent, it is determined that the broadcast time has arrived? If so, the content of the second classroom is pushed, otherwise, the previous step is returned.
Preferably, the wireless connection includes a WIFI connection and a radio connection.
The beneficial effects of the invention are as follows: the remote controller manual initialization system edits the content of the second classroom by the number of the computer coding broadcast area and the loudspeakers, the remote controller sends the broadcast signal with the codes, the wireless receiving board receives the broadcast signal with the codes and transmits the broadcast signal to the signal processing board by the processor, and after the signal processing board processes the sent broadcast signal with the codes, does the signal processing board judge that the broadcast time is up? If the content of the second classroom begins to be pushed, and if the content of the second classroom does not begin to be pushed, the previous step is returned, the portable broadcasting equipment can conveniently push the content of the second classroom in any occasion, the wireless node technology is adopted, the networking is flexible, a large number of wired networks do not need to be embedded, and the related matters of directionally broadcasting and pushing the second classroom can be set at will.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a campus broadcast push device and a push method thereof for a second classroom according to the present invention;
fig. 2 is a schematic structural diagram of a wireless transmitter for a second classroom campus broadcast push apparatus and a push method thereof according to the present invention;
fig. 3 is a schematic structural diagram of a portable broadcasting device for pushing a campus broadcast in a second classroom and a pushing method thereof according to the present invention;
fig. 4 is a flowchart illustrating a determination process of a campus broadcasting push device and a pushing method thereof for a second classroom according to the present invention.
In the figure: 1-portable broadcasting equipment, 101-wireless transmission antenna, 102-antenna rotating shaft, 103-radiating hole, 104-broadcast display screen, 105-battery pack, 106-wheel, 107-teaching aid cabinet, 108-loudspeaker, 109-solar panel, 110-wireless transmitter, 111-vehicle body, 112-roof platform, 1101-wireless transmission joint, 1102-antenna interface, 1103-circuit board, 1104-tuner board, 1105-digital demodulation board, 1106-wireless receiving board, 1107-processor, 1108-signal processing board, 2-power amplifier, 3-remote controller, 4-clock module, 5-serial port module and 6-restorer.
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.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the 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.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-4, a campus broadcasting push device for a second classroom and a push method thereof, comprising a remote controller 3, wherein the remote controller 3 is connected with a power amplifier 2, the power amplifier 2 is connected with a wireless receiving board 1106 through a wireless transmission antenna 101, the wireless receiving board 1106 is connected with a signal processing board 1108, the signal receiving board is connected with a loudspeaker 108 in a portable broadcasting device 1, the portable broadcasting device 1 comprises a vehicle body 111, the bottom of the vehicle body 111 is provided with a movable wheel 106, two sides of the vehicle body 111 are provided with broadcasting display screens 104, a radiating hole 103 is arranged above the broadcasting display screens 104, one side of the vehicle body 111 is provided with a teaching aid cabinet 107, the bottom of an inner cavity of the vehicle body 111 is provided with a battery pack 105, the top of the vehicle body 111 is provided with a roof platform 112, the side of the roof platform 112 is provided with the loudspeaker 108, the top end in the roof platform 112 is equipped with wireless transmitter 110, wireless transmitter 110 top is equipped with antenna pivot 102, antenna pivot 102 connects wireless transmission antenna 101. A solar panel 109 is arranged above the roof platform 112; the wireless transmitter 110 comprises a circuit board 1103, a wireless receiving board 1106 is installed above one side of the circuit board 1103, a processor 1107, a tuner board 1104 and a digital demodulation board 1105 are connected to the wireless receiving board 1106, a wireless transmission joint 1101 is arranged above the other side of the wireless receiving board 1106, an antenna interface 1102 is arranged at the upper end of the wireless transmission joint 1101, and a signal processing board 1108 is arranged at the other end of the circuit board 1103; signal processing board 1108 is in signal connection with wireless receiving board 1106 through processor 1107, and tuner board 1104 is in signal connection with wireless receiving board 1106; the battery pack 105 is electrically connected with the solar panel 109, the battery pack 105 is electrically connected with the broadcast display screen 104, the battery pack 105 is electrically connected with the loudspeaker 108, and the battery pack 105 is electrically connected with the wireless transmitter 110; the remote controller 3 is wirelessly connected with a wireless receiving board 1106; the broadcast display screen 104 is an LED broadcast display screen 104; a restorer 6 is arranged in the wireless receiving board 1106, a serial port module 5 is arranged in the power amplifier 2, and a clock module 4 is arranged in the remote controller 3. The wireless connection comprises WIFI connection and radio connection.
The pushing method comprises the following steps:
s1, the remote controller 3 initializes the system manually, and codes the number of the broadcasting area and the loudspeaker by the computer;
s2, editing the content of the second classroom, the remote controller 3 sends the broadcast signal with code, the wireless receiving board 1106 receives the broadcast signal with code, and the signal is transmitted to the signal processing board 1108 by the processor 1107:
s3: after the signal processing board 1108 processes the broadcast signal with codes, it is determined that the broadcast time has arrived? If so, the content of the second classroom is pushed, otherwise, the previous step is returned.
The working principle is as follows: at the beginning, the staff pushes the portable broadcasting device 1 to the designated area of the campus via the wheels 106, at this time, the remote controller 3 manually initializes the system, and when the broadcasting area and the number of speakers are encoded by the computer, the content of the second classroom is edited, the remote controller 3 transmits the broadcast signal with codes, the wireless receiving board 1106 receives the broadcast signal with codes, and transmits the broadcast signal to the signal processing board 1108 via the processor 1107, and after the signal processing board 1108 processes the transmitted broadcast signal with codes, does the broadcast time reach? If so, the content of the second classroom is pushed, otherwise, the previous step is returned. The wireless node technology of the invention has flexible networking, does not need to embed a large amount of wired networks, and can arbitrarily set the related matters of directional broadcasting and pushing the second classroom.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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.
Claims (9)
1. A campus broadcast push device and a push method thereof for a second classroom are characterized in that: including remote controller, remote controller connects power amplifier, power amplifier passes through wireless transmission antenna and connects wireless dash receiver, wireless dash receiver connects signal processing board, signal dash receiver connects public address loudspeaker in the portable broadcasting equipment, portable broadcasting equipment includes the automobile body, mobilizable wheel is equipped with to the bottom of the car body, the automobile body both sides are equipped with the broadcast display screen, the louvre has been seted up to broadcast display screen top, automobile body one side is equipped with the teaching aid cabinet, the group battery is installed to inner cavity of the car body bottom, the automobile body top is equipped with the roof platform, loudspeaker have been seted up to roof platform side, roof platform internal top is equipped with wireless transmitter, the wireless transmitter top is equipped with the antenna pivot, the wireless transmission antenna is connected in the antenna pivot. And a solar panel is arranged above the roof platform.
2. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 1, characterized in that: the wireless transmitter comprises a circuit board, a wireless receiving board is installed above one side of the circuit board, a processor, a tuner board and a digital demodulation board are connected onto the wireless receiving board, a wireless transmission joint is arranged above the other side of the wireless receiving board, an antenna interface is arranged at the upper end of the wireless transmission joint, and a signal processing board is arranged at the other end of the circuit board.
3. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 2, characterized in that: the signal processing board is in signal connection with the wireless receiving board through the processor, and the tuner board is in signal connection with the wireless receiving board.
4. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 1, characterized in that: the battery pack is electrically connected with the solar panel, the battery pack is electrically connected with the broadcast display screen, the battery pack is electrically connected with the loudspeaker, and the battery pack is electrically connected with the wireless transmitter.
5. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 1, characterized in that: the remote controller is in wireless connection with the wireless receiving board.
6. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 1, characterized in that: the broadcast display screen is an LED broadcast display screen.
7. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 1, characterized in that: the wireless receiving board is internally provided with a restorer, the power amplifier is internally provided with a serial port module, and the remote controller is internally provided with a clock module.
8. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 1, characterized in that: the pushing method comprises the following steps:
s1, the remote controller initializes the system manually, and codes the number of the broadcast area and the loudspeaker by the computer;
s2, editing the content of the second classroom, sending the broadcast signal with the code by the remote controller, receiving the broadcast signal with the code by the wireless receiving board, and transmitting the broadcast signal to the signal processing board through the processor:
s3: after the signal processing board processes the broadcast signal with codes sent, it is determined that the broadcast time has arrived? If so, the content of the second classroom is pushed, otherwise, the previous step is returned.
9. The campus broadcasting pushing device and the pushing method thereof for the second classroom according to claim 5, characterized in that: the wireless connection comprises WIFI connection and radio connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010149657.XA CN113364548A (en) | 2020-03-06 | 2020-03-06 | Campus broadcast pushing equipment for second classroom and pushing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010149657.XA CN113364548A (en) | 2020-03-06 | 2020-03-06 | Campus broadcast pushing equipment for second classroom and pushing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113364548A true CN113364548A (en) | 2021-09-07 |
Family
ID=77523914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010149657.XA Pending CN113364548A (en) | 2020-03-06 | 2020-03-06 | Campus broadcast pushing equipment for second classroom and pushing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113364548A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204440696U (en) * | 2015-03-19 | 2015-07-01 | 三明学院 | A kind of colleges and universities second classroom apparatus for management of information |
| CN205681434U (en) * | 2016-06-24 | 2016-11-09 | 王博 | Meet an urgent need emergency broadcast device in public place |
| CN108630132A (en) * | 2018-05-11 | 2018-10-09 | 合肥申祥灵聘科技有限公司 | A kind of packaged type campus broadcasting propaganda car |
| CN208063216U (en) * | 2018-03-02 | 2018-11-06 | 朱志国 | DMB+ Multimedia Mobile array terminals |
| CN110166550A (en) * | 2019-05-22 | 2019-08-23 | 湖南康通电子股份有限公司 | A kind of fixed time broadcast method and device of digit broadcasting system |
-
2020
- 2020-03-06 CN CN202010149657.XA patent/CN113364548A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204440696U (en) * | 2015-03-19 | 2015-07-01 | 三明学院 | A kind of colleges and universities second classroom apparatus for management of information |
| CN205681434U (en) * | 2016-06-24 | 2016-11-09 | 王博 | Meet an urgent need emergency broadcast device in public place |
| CN208063216U (en) * | 2018-03-02 | 2018-11-06 | 朱志国 | DMB+ Multimedia Mobile array terminals |
| CN108630132A (en) * | 2018-05-11 | 2018-10-09 | 合肥申祥灵聘科技有限公司 | A kind of packaged type campus broadcasting propaganda car |
| CN110166550A (en) * | 2019-05-22 | 2019-08-23 | 湖南康通电子股份有限公司 | A kind of fixed time broadcast method and device of digit broadcasting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101309088B (en) | Random addressing self-adapting frequency-hopping wireless microphone and receiving machine thereof | |
| CN1221260A (en) | Transmitter and automobile audio apparatus using the same | |
| CN104270442A (en) | Vehicle-mounted audio playing method, vehicle-mounted control terminal and system | |
| CN113364548A (en) | Campus broadcast pushing equipment for second classroom and pushing method thereof | |
| CN101114837A (en) | Wireless receiver and method thereof | |
| CN205911426U (en) | Vehicle -mounted antenna | |
| JP2005039395A (en) | Video image receiving tuner and video image receiving apparatus | |
| CN213818101U (en) | Wireless microphone dynamic networking system | |
| CN204315717U (en) | Radio oscillator and dwarf forms car antenna | |
| CN201369737Y (en) | Wired frequency-modulation broadcasting transmit-receive system | |
| JP3955173B2 (en) | Bit error rate confirmation device for receiver for digital wireless transmission system | |
| CN207603923U (en) | A kind of loud speaker and wireless Public Address System | |
| JP2008177959A (en) | Fm transmitter, electronic equipment using the same, and automatic channel selecting method | |
| JP6433594B2 (en) | Signal configuration, transmitter and receiver | |
| CN216214142U (en) | Side-mounted active V2X antenna device | |
| CN115412109B (en) | In-car receiving signal transmission system and transmission method | |
| CN101997625B (en) | Wireless signal transmitter and related multimedia system | |
| WO2002017657A3 (en) | Transportable self-contained communications unit comprising transmission equipment and antennas for reconnecting a disconnected cell site to a communications network | |
| TWM355469U (en) | Multi-band-integrated vehicle antenna module in flexible-printed type | |
| JP2004064723A (en) | Railway wireless broadcasting device | |
| CN215042465U (en) | Intelligent interconnected rearview mirror | |
| CN110190895B (en) | Unmanned aerial vehicle communication system and method | |
| CN201025718Y (en) | A TV set with wireless audio radiation and receiving device | |
| JP2006067392A (en) | Ear-worn type radio communications device and radio communications system | |
| JP3034966U (en) | Cordless voice receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |