CN209330386U - A kind of campus playground broadcast orientation stereomicrophone system - Google Patents
A kind of campus playground broadcast orientation stereomicrophone system Download PDFInfo
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- CN209330386U CN209330386U CN201920495554.1U CN201920495554U CN209330386U CN 209330386 U CN209330386 U CN 209330386U CN 201920495554 U CN201920495554 U CN 201920495554U CN 209330386 U CN209330386 U CN 209330386U
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- network
- orientation
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- sound
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- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model discloses a kind of campus playgrounds to broadcast with orientation stereomicrophone system, including wireless microphone, wireless microphone is connected with acoustic network transmitting module, and acoustic network transmitting module is connected with acoustic network receiving module, and acoustic network receiving module is connected with directional loudspeaker.It has the advantage that using the transaudient sound equipment of orientation, only broadcast can be heard in the transaudient 30 ° of angular regions of sound equipment of orientation, influence of the campus broadcasting sound equipment to the noise of school's nearby residents is reduced, the propagation that wireless network carries out sound can be directlyed adopt, not limiting must use campus network to propagate sound.
Description
Technical field
The utility model relates to a kind of campus playgrounds to broadcast with stereomicrophone system is oriented, and belong to ultrasonic directional sound technique neck
Domain.
Background technique
Broadcast is known very early as a kind of information spreading medium, and is widely applied in daily life.School
The important tool propagated as school information is broadcasted in garden, is just developed towards " digitlization, networking, intelligence " direction, realization and
Therefore the combination of cable television and computer network builds an automation, intelligentized Campus Public Address Systerm just seems ten
Divide necessity.
At present in national urban planning, about the regulation of Layout of Primary & Middle Schools, school is to merge each other with residential block itself
Composition, the phenomenon that this results in campus broadcasting noise disturbs residents frequent occurrence, influence the quality of life of nearby residents, cause resident
Contradiction between school.
Utility model content
Problem to be solved in the utility model is against the above deficiency, to provide a kind of campus playground broadcast transaudient system of orientation
System only can hear broadcast in the transaudient 30 ° of angular regions of sound equipment of orientation, reduce campus broadcasting sound equipment to using transaudient sound equipment is oriented
The influence of the noise of school nearby residents can directly adopt the propagation that wireless network carries out sound, and campus network must be used by not limiting
Propagate sound.
To solve the above-mentioned problems, the utility model uses following technical scheme:
A kind of square dance orientation stereomicrophone system, including wireless microphone, wireless microphone are connected with acoustic network transmitting
Module, acoustic network transmitting module are connected with acoustic network receiving module, and acoustic network receiving module is connected with directional loudspeaker.
Further, the acoustic network transmitting module includes that network adopts the machine of broadcasting, and network adopts the machine of broadcasting and is connected with interchanger, is handed over
It changes planes and is connected with wireless bridge transmitting terminal, wireless bridge transmitting terminal connects industrial control box, and wireless bridge transmitting terminal is sent out to campus playground
Send wireless network signal.
Further, the acoustic network receiving module includes wireless bridge receiving end, and wireless bridge receiving end is connected with
Wireless bridge transmitting terminal, wireless bridge transmitting terminal are connected with network audio and play box, and it is micro- that network audio broadcasting box is connected with sound wave
Processor, sound wave microprocessor are connected with the dedicated power amplifier of orientation, orient dedicated power amplifier and be connected with directional loudspeaker.
Further, the digital signal that the sound wave microprocessor receives Audio Input Modules is converted to ultrasonic wave letter
Number.
Further, the dedicated power amplifier of orientation amplifies the ultrasonic signal multiplying power received from sound wave microprocessor.
Further, the directional loudspeaker launches ultrasonic signal, generates the direct sound of certain angle simultaneously
It is sent to specified region.
The utility model is had the following technical effect that compared with prior art using above technical scheme
Using transaudient sound equipment is oriented, broadcast only can be heard in the transaudient 30 ° of angular regions of sound equipment of orientation, reduces campus broadcasting sound equipment
Influence to the noise of school's nearby residents can directly adopt the propagation that wireless network carries out sound, and school must be used by not limiting
Garden net propagates sound.
Technical solutions of the utility model are described further with reference to the accompanying drawings and examples.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of broadcast orientation stereomicrophone system in campus playground in the utility model embodiment.
Specific embodiment
Embodiment 1, as shown in Figure 1, a kind of campus playground broadcast orientation stereomicrophone system, including wireless microphone, wirelessly
Microphone is connected with acoustic network transmitting module, and acoustic network transmitting module is connected with acoustic network receiving module, acoustic network
Receiving module is connected with directional loudspeaker.
The acoustic network transmitting module includes that network adopts the machine of broadcasting, and network adopts the machine of broadcasting and is connected with interchanger, interchanger connection
There is wireless bridge transmitting terminal, wireless bridge transmitting terminal connects industrial control box, and wireless bridge transmitting terminal sends wireless network to campus playground
Network signal.
The acoustic network receiving module includes wireless bridge receiving end, and wireless bridge receiving end is connected with wireless bridge hair
End is penetrated, wireless bridge transmitting terminal is connected with network audio and plays box, and network audio plays box and is connected with sound wave microprocessor, sound wave
Microprocessor is connected with the dedicated power amplifier of orientation, orients dedicated power amplifier and is connected with directional loudspeaker.
The digital signal that the sound wave microprocessor receives Audio Input Modules is converted to ultrasonic signal.
The dedicated power amplifier of orientation amplifies the ultrasonic signal multiplying power received from sound wave microprocessor.
The directional loudspeaker launches ultrasonic signal, generates the direct sound of certain angle and is sent to specified
Region.
In use, directional loudspeaker is mounted on 6 meters of high vertical bars, wireless microphone can directly transmit sound and arrive school
Playground, wireless microphone can be passed to sound on network and adopt the machine of broadcasting, and network adopts the machine of broadcasting and passes through network for transmission of sound signals to net
Network audio plays box, and sound plays box by network audio again and is converted into ultrasonic wave to sound wave microprocessor, and orienting dedicated power amplifier will
The ultrasonic signal multiplying power amplification received, directional loudspeaker launch ultrasonic signal, generate the orientation of certain angle
Sound is simultaneously sent to specified region.
Common acoustic signal can be converted to by campus playground broadcast described in the utility model with orientation stereomicrophone system to be had
The voice signal of directionality transmits transmitting, and launch angle is 30 °, can keep hearing sound in a certain range angle, not interfere it
The people in his region.
The above is the citing of the utility model preferred forms, wherein the part that do not address in detail is this field
The common knowledge of those of ordinary skill.The protection scope of the utility model is based on the contents of the claims, any to be based on this reality
The equivalent transformation carried out with novel technical inspiration, is also within the protection scope of the utility model.
Claims (5)
1. a kind of campus playground broadcast orientation stereomicrophone system, it is characterised in that: including wireless microphone, wireless microphone connection
There is sound network launches module, acoustic network transmitting module is connected with acoustic network receiving module, and acoustic network receiving module connects
It is connected to directional loudspeaker；
The acoustic network receiving module includes wireless bridge receiving end, and wireless bridge receiving end is connected with wireless bridge transmitting
End, wireless bridge receiving end are connected with network audio and play box, and network audio plays box and is connected with sound wave microprocessor, and sound wave is micro-
Processor is connected with the dedicated power amplifier of orientation, orients dedicated power amplifier and is connected with directional loudspeaker.
2. a kind of campus playground broadcast orientation stereomicrophone system as described in claim 1, it is characterised in that: the acoustic network
Transmitting module includes that network adopts the machine of broadcasting, and network adopts the machine of broadcasting and is connected with interchanger, and interchanger is connected with wireless bridge transmitting terminal, wirelessly
Bridge transmitting terminal connects industrial control box, and wireless bridge transmitting terminal sends wireless network signal to campus playground.
3. a kind of campus playground broadcast orientation stereomicrophone system as described in claim 1, it is characterised in that: the micro- place of sound wave
The digital signal that reason device receives Audio Input Modules is converted to ultrasonic signal.
4. a kind of campus playground broadcast orientation stereomicrophone system as described in claim 1, it is characterised in that: the orientation is dedicated
Power amplifier amplifies the ultrasonic signal multiplying power received from sound wave microprocessor.
5. a kind of campus playground broadcast orientation stereomicrophone system as described in claim 1, it is characterised in that: the orientation loudspeaking
Device launches ultrasonic signal, generates the direct sound of certain angle and is sent to specified region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495554.1U CN209330386U (en) | 2019-04-12 | 2019-04-12 | A kind of campus playground broadcast orientation stereomicrophone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495554.1U CN209330386U (en) | 2019-04-12 | 2019-04-12 | A kind of campus playground broadcast orientation stereomicrophone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209330386U true CN209330386U (en) | 2019-08-30 |
Family
ID=67733307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920495554.1U Active CN209330386U (en) | 2019-04-12 | 2019-04-12 | A kind of campus playground broadcast orientation stereomicrophone system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209330386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113194338A (en) * | 2021-03-25 | 2021-07-30 | 湖北省广播电视信息网络股份有限公司武汉分公司 | System and method for playing audio and video and guiding fitness of outdoor fitness |
-
2019
- 2019-04-12 CN CN201920495554.1U patent/CN209330386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113194338A (en) * | 2021-03-25 | 2021-07-30 | 湖北省广播电视信息网络股份有限公司武汉分公司 | System and method for playing audio and video and guiding fitness of outdoor fitness |
| CN113194338B (en) * | 2021-03-25 | 2023-03-24 | 湖北省广播电视信息网络股份有限公司武汉分公司 | System and method for playing audio and video and guiding fitness of outdoor fitness |
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