CN203775221U - Multi-sound source-input wireless addressable broadcasting device - Google Patents
Multi-sound source-input wireless addressable broadcasting device Download PDFInfo
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- CN203775221U CN203775221U CN201420175426.6U CN201420175426U CN203775221U CN 203775221 U CN203775221 U CN 203775221U CN 201420175426 U CN201420175426 U CN 201420175426U CN 203775221 U CN203775221 U CN 203775221U
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Abstract
The utility model discloses a multi-sound source-input wireless addressable broadcasting device. The multi-sound source-input wireless addressable broadcasting device includes a data processing unit, a wireless communication unit, a frequency modulation radio unit, an audio switching unit, an audio amplifying unit and a power source unit; the data processing unit comprises a sound card, a communication interface, an IO interface and a memory, and is connected with the wireless communication unit and the frequency modulation radio unit through the communication interface, and is connected with the audio switching unit through the IO interface and the sound card; the wireless communication unit comprises a GPRS communication module set and a GSM communication module set; the audio switching unit is provided with a plurality of input channels which are respectively connected with the frequency modulation radio unit, the sound card of the data processing unit and audio output of the GSM communication module set; and the output of the audio switching unit is connected with the audio amplifying unit, and then is connected with a loudspeaker. The multi-sound source-input wireless addressable broadcasting device has the advantages of simple structure, small size, convenient installation and multi-channel playing sound source switching function. With the multi-sound source-input wireless addressable broadcasting device adopted, a mobile phone user can realize broadcast terminal addressing and inter-cut functions.
Description
Technical field
The utility model relates to wireless broadcast technologies field, relates in particular to the wireless addressable broadcasting device of a kind of multiple sound resource.
Background technology
Radio broadcasting is the important component part of radio data system, in national emergency information delivery system, is bearing vital task, performance significant role.But wireless broadcast system in prior art, conventionally adopt multilevel network mode, adopt long distance wired connected mode to connect multiple loudspeaker at broadcast terminal, the shortcoming of this system configuration is that restriction, the equipment that dumb, the on-the-spot installation wiring difficulty of framework, installation site are subject to circuit can not arbitrarily move replacing position.And in the time that certain broadcast terminal breaks down, the loudspeaker in the whole region that broadcast terminal relates to all can not be worked, and therefore tackle the indifferent of natural calamity.All terminals all receive broadcasting center one road broadcasting channel in addition, can not on-demand customization, can not meet single region and independently play the needs of different information.
Summary of the invention
The utility model, for the shortcoming of above-mentioned prior art, provides a kind of multiple sound resource wireless addressable broadcasting device, for solving a difficult problem for prior art installation wiring and function limitation.
Design of the present utility model is as follows: a kind of wireless addressable broadcasting device with multiple sound resource input, comprise data processing unit, wireless communication unit, FM receiver unit, Audio conversion unit, audio amplification unit and power subsystem, described data processing unit comprises sound card, communication interface, IO interface and memory, data processing unit is connected with wireless communication unit and FM receiver unit by communication interface, is connected with sound card by IO interface with Audio conversion unit; Described wireless communication unit comprises GPRS communications module and gsm communication module; The input of Audio conversion unit is provided with several input channels, connects respectively the audio frequency output of FM receiver unit, sound card and gsm communication module, and the output of Audio conversion unit is connected with audio amplification unit, then connects loudspeaker; Described power subsystem is provided with electric main and the input of solar cell two-way power supply, built-in charging accumulator.
In described power supply, be provided with anti-overvoltage circuit and lightning prevention circuit.
Data processing unit, for the treatment of different sound source signals, and controls Audio conversion unit, and effective audio signal is pushed to audio frequency amplifier, carries out broadcast playback.The GPRS communications module of described wireless communication unit, for carrying out data interaction with broadcasting centre, receives broadcast information, also can be received by gsm communication module GSM mobile handset user's the information of intercutting.Described FM receiver unit, for receiving fm broadcast signal.Described Audio conversion unit can switch between multiple sources of sound, selects an effective source of sound to broadcast.Described audio amplification unit, for effective audio signal is carried out to power amplification, sends into loudspeaker and broadcasts.
Described power subsystem is provided with arbitrary circuit or the multiple circuit in electric main power conversion circuit, solar cell power conversion circuit and battery charging circuit, for other unit of broadcaster provide reliable and stable working power.Optionally in power supply, be provided with arbitrary circuit or multiple circuit in lightning prevention circuit, anti-overvoltage circuit and switch power voltage-stabilizing circuit.
Preferably, described data processing unit comprises data processing core, nonvolatile memory, communication interface, IO interface and sound card circuit, and this nonvolatile memory and described data processing nuclear phase connect, the audio file transmitting for storing GPRS network; Described data processing core, for audio file is stored, is controlled the broadcasting of multiple sound resource file; Described communication interface, for carrying out data communication with wireless communication unit and FM receiver unit, is controlled its work; Described IO interface is used for controlling Audio conversion unit; Described sound card circuit is for converting audio file to audio signal.
Preferably, described Audio conversion unit comprises 3 diverter switches, and described 3 diverter switches are selected a road signal input audio amplification unit for the GSM mobile handset conversation signal of the sound card output signal from data processing unit, FM receiver element output signal, wireless communication unit.
Described wireless communication unit comprises GPRS communications module and gsm communication module, have GPRS wireless data communication function and GSM voice call function, cellphone subscriber can realize addressable communications by unit address and voice intercut by gsm communication module, broadcasting centre.
Wireless addressable broadcasting device, by GPRS communication unit, both can carry out data interaction with broadcasting centre, also can receive GSM mobile handset user's the information of intercutting; Data processing unit is processing the intercutting after audio signal, FM receiver audio signal of the audio file that obtains in wireless network, GSM mobile handset user, select one of them effective audio signal to send into audio frequency amplifier by Audio conversion unit, drive loudspeaker to broadcast.
The utlity model has following beneficial effect: described device have simple in structure, volume is little, the advantage such as easy for installation, there is multichannel source of sound and switch the function of playing; Realize the wireless addressing of playing device, can be to the playing device on-demand customization broadcast information in radio network; Described power subsystem has civil power input, solar cell input and storage battery stand-by power supply function simultaneously, make it have sustainable work in the adverse circumstances of often short of electricity, natural calamity, meet the needs of the multiple broadcast in vast rural area, mountain area and anti-harmful disaster relief region.
Brief description of the drawings
Fig. 1 is structural principle schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is power supply architecture schematic diagram of the present utility model.
Embodiment
Below in conjunction with specific embodiment and Figure of description, the utility model is described in further detail.Specific embodiment described herein is only in order to explain the utility model, and is not used in restriction the utility model.
Embodiment: as shown in Figure 1, multiple sound resource is wireless, and addressable broadcasting device is made up of data processing unit 10, wireless communication unit 20, FM receiver unit 30, Audio conversion unit 40, audio amplification unit 50 and power subsystem 60.
Described FM receiver unit 30, for receiving fm broadcast signal.
Concrete, as shown in Figure 2, described wireless communication unit 20 specifically comprises GPRS communications module 21 and gsm communication module 22, for setting up grouping service wireless network, receives the audio file of broadcasting centre and sends data processing unit 10 to; And can determine the network address of this broadcaster by GPRS address or GSM telephone number, realize the wireless addressing location in broadcast system.
Described Audio conversion unit 40 is to select a road signal input audio amplification unit from the audio output signal of the GSM module of the sound card output signal of data processing unit, FM receiver element output signal, wireless communication unit; Described audio amplification unit 50 amplifies for effective audio signal that Audio conversion unit 40 is selected, and broadcasts by loudspeaker.
As shown in Figure 3, power subsystem 60 comprises electric main power conversion circuit 61, solar cell power conversion circuit 63, battery charging circuit 62, switch power voltage-stabilizing circuit 64, lightning prevention circuit 65, anti-overvoltage circuit 66 and storage battery 67.Electric main, after electric main power conversion circuit 61, is transformed into galvanic current source; In the time that solar irradiation is strong, solar cell produces electric energy input solar cell power conversion circuit 63, is also transformed into galvanic current source.After the parallel connection of two-way DC power supply, carry out Charge Management by battery charging circuit 62 for storage battery 67, ensure, in the situation that having civil power or solar cell working good, storage battery to be charged normal, and do not overcharge; Simultaneously the power supply after parallel connection is after switch power voltage-stabilizing circuit 64, is transformed into 5V, 4.2V, 12V and 24V DC power supply and provides reliable and stable working power for broadcast terminal.When civil power is stopped power supply, and solar irradiation is when weak, and storage battery 67 provides power supply to switch power voltage-stabilizing circuit 64, after conversion, for broadcast terminal provides working power, ensures that terminal works continuously and stably.
Described data processing unit 10 specifically comprises data processing core 11, communication interface 12, nonvolatile memory 13,10 interfaces 14 and sound card 15.Data processing unit, for receiving, store the audio file sending from GPRS network, is controlled Audio conversion unit.Data processing core 11 is communicated by letter with wireless communication unit 20 by communication interface 12, set up GPRS grouping service wireless network, carry out RFDC, obtain audio file, data processing core 11 will be sent to sound card 15 after audio file decoding in real time, convert audio signal transmission to Audio conversion unit 40, simultaneously by audio files storage in nonvolatile memory 13.Data processing core 11 also connects with gsm communication module 22 by communication interface 12, Real-time Obtaining gsm communication module state, once there be phone to dial in, is converted to GSM voice and intercuts mode, connect input phone, and telephone speech signal is directly sent into audio frequency incision unit 40.In addition, data processing core 11 is controlled FM receiver unit 30 by communication interface 12, receives fm broadcast signal, and audio signal is sent into Audio conversion unit 40.Data processing core 11 is controlled Audio conversion unit 40 by IO interface 14, in 3 audio output signals such as sound card 15, gsm communication module 22 and FM receiver unit 30, select a road signal to give audio amplification unit 50, broadcast broadcast through Audio power amplifier rear drive loudspeaker.
The wireless addressable audio frequency that this broadcaster has been realized between broadcast terminal and broadcasting centre, broadcast terminal and cellphone subscriber is play, and has simplified network hardware framework, facilitates networking to install, and is more convenient to control and management; Broadcast terminal can be accepted the input of multiple audio signal, and especially cellphone subscriber intercuts mode, realizes easily and flexibly customization broadcast program.
The utility model preferred embodiment in sum, all changes of making according to technical solutions of the utility model, the function of producing all belongs to protection range of the present utility model while not exceeding the scope of technical solutions of the utility model.
Claims (2)
1. one kind has the wireless addressable broadcasting device of multiple sound resource input, comprise data processing unit, wireless communication unit, FM receiver unit, Audio conversion unit, audio amplification unit and power subsystem, it is characterized in that: described data processing unit comprises sound card, communication interface, IO interface and memory, data processing unit is connected with wireless communication unit and FM receiver unit by communication interface, is connected with sound card by IO interface with Audio conversion unit; Described wireless communication unit comprises GPRS communications module and gsm communication module; The input of Audio conversion unit is provided with several input channels, connects respectively the audio frequency output of FM receiver unit, sound card and gsm communication module, and the output of Audio conversion unit is connected with audio amplification unit, then connects loudspeaker; Described power subsystem is provided with arbitrary circuit or the multiple circuit in electric main power conversion circuit, solar cell power conversion circuit and battery charging circuit.
2. a kind of wireless addressable broadcasting device with multiple sound resource input according to claim 1, is characterized in that: in described power supply, be provided with arbitrary circuit or multiple circuit in anti-overvoltage circuit, lightning prevention circuit and switch power voltage-stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175426.6U CN203775221U (en) | 2014-04-03 | 2014-04-03 | Multi-sound source-input wireless addressable broadcasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175426.6U CN203775221U (en) | 2014-04-03 | 2014-04-03 | Multi-sound source-input wireless addressable broadcasting device |
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| Publication Number | Publication Date |
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| CN203775221U true CN203775221U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420175426.6U Expired - Fee Related CN203775221U (en) | 2014-04-03 | 2014-04-03 | Multi-sound source-input wireless addressable broadcasting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980239A (en) * | 2014-04-03 | 2015-10-14 | 中国人民解放军重庆通信学院 | Wireless addressable broadcasting device with multi-sound-source input |
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2014
- 2014-04-03 CN CN201420175426.6U patent/CN203775221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980239A (en) * | 2014-04-03 | 2015-10-14 | 中国人民解放军重庆通信学院 | Wireless addressable broadcasting device with multi-sound-source input |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150403 |
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| EXPY | Termination of patent right or utility model |