CN211151965U - Digital wireless communication network broadcasting system for forest area - Google Patents
Digital wireless communication network broadcasting system for forest area Download PDFInfo
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- CN211151965U CN211151965U CN202020374730.9U CN202020374730U CN211151965U CN 211151965 U CN211151965 U CN 211151965U CN 202020374730 U CN202020374730 U CN 202020374730U CN 211151965 U CN211151965 U CN 211151965U
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Abstract
The utility model discloses a digital wireless communication network broadcasting system for forest zones, wherein, a dispatching system client PC end is connected with a dispatching system server, and the dispatching system server is connected with a dispatching system console; the communication broadcast sound box comprises an interphone A, a controller, an MP3, a power amplifier and a sound box, wherein the console is used for transmitting a control instruction to the interphone A through a communication base station, the interphone A receives the control instruction to generate a control signal and transmits the control signal to the controller, and the controller controls the MP3 to transmit a background music signal to the sound box for broadcasting through the power amplifier; and the interphone B or the client PC end of the dispatching system is connected with the interphone A, and the audio signal is transmitted to the sound box for broadcasting. The utility model has the advantages that the local sound source is played through the built-in MP3, thereby avoiding the problem that the playing of the background music is not smooth and even interrupted; the communication broadcast sound box does not need wiring and is suitable for outdoor places such as scenic spots, parks and the like; the dispatching system client PC end and the interphone B can both send out emergency broadcasting, and the system reliability is improved.
Description
Technical Field
The utility model belongs to the technical field of wireless communication, concretely relates to a digital wireless communication network broadcasting system for forest zone.
Background
The broadcasting system is a new concept multimedia mobile broadcasting service integrating communication and broadcasting, and relates to applications in multiple fields. The public broadcasting system combines background music broadcasting and emergency broadcasting systems into a whole according to the current common practice, and a digital IP network broadcasting system is mostly adopted at present, the system mainly transmits playing data through an IP bearing network, but the IP network must depend on network cables, so that the installation is complex, the cost is higher, meanwhile, the network cables are vulnerable outdoors, particularly in scenic spots or natural protection areas, the background music playing is not smooth, the data transmission is interrupted, and the use of broadcasting is seriously influenced.
SUMMERY OF THE UTILITY MODEL
For overcoming the technical defect that prior art exists, the utility model discloses a digital wireless communication network broadcasting system for forest zone has solved the not smooth problem of background music broadcast, and is suitable for open-air places such as large-scale scenic spot, park to use.
The utility model provides a technical scheme that its technical problem adopted is a digital wireless communication network broadcasting system for forest zone, its characterized in that: the system comprises an interphone B, a communication broadcast sound box, a communication base station, a dispatching system console, a dispatching system server and a dispatching system client PC end, wherein the dispatching system client PC end is connected with the dispatching system server which is connected with the dispatching system console;
the communication broadcasting sound box comprises an interphone A, a controller, an MP3, a power amplifier and a sound box, wherein the console is used for sending a control instruction, the control instruction is transmitted to the interphone A through a communication base station, the interphone A receives the control instruction to generate a control signal and transmits the control signal to the controller, and the controller controls the MP3 through the control signal to transmit a background music signal to the sound box through the power amplifier for broadcasting;
the interphone B or the client PC end of the dispatching system is connected through the interphone A of the communication base station, and the interphone A transmits the audio signals to the sound box for broadcasting through the power amplifier.
Preferably, the power amplifier comprises a power amplifier circuit for amplifying the audio signal, and the power amplifier circuit comprises a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor and a power amplifier chip;
the audio input is connected with first resistance one end, the first resistance other end is connected with second resistance one end, the second resistance other end is connected with power amplifier chip in-phase input end, the first resistance other end still is connected with second electric capacity one end, the second electric capacity other end is connected with power amplifier chip output, first electric capacity one end is connected with power amplifier chip in-phase input end, the ground connection of the first electric capacity other end, power amplifier chip inverting input end is connected with third resistance one end, the ground connection of the third resistance other end, connect the fourth resistance between power amplifier chip inverting input end and its output, power amplifier chip output is connected with the audio amplifier as audio output.
Preferably, the power amplifier circuit further comprises a third capacitor and a fourth capacitor, one end of the third capacitor is connected with the audio input, and the other end of the third capacitor is connected with the first resistor;
one end of the fourth capacitor is connected with the output end of the power amplifier chip, and the other end of the fourth capacitor is connected with the sound box as audio output.
Preferably, the console is a wireless console or a wired console, the wireless console is internally provided with a radio station, the wired console is internally provided with a vocoder, and the radio station and the vocoder are used for converting the control command sent by the console into wireless communication grid-type coding.
Preferably, a power supply system is arranged in the communication broadcast sound box, the power supply system is connected with the interphone, the controller, the MP3, the power amplifier and the sound box in a power supply mode, and the power supply system supplies power for commercial power or solar energy.
Preferably, the communication broadcasting sound box is internally provided with a fan and a heater.
The utility model has the advantages that the local sound source is played through the built-in MP3, thereby avoiding the problem that the playing of the background music is not smooth and even interrupted; the communication broadcast sound box does not need wiring, is convenient to install, and is suitable for being used in large scenic spots, parks and other outdoor places; the dispatching system client PC end and the site interphone B can both send out emergency broadcast, and the reliability of the whole system is improved.
Drawings
Fig. 1 is a schematic block diagram of a specific embodiment of the background music playing light of the present invention.
Fig. 2 is a schematic block diagram of an embodiment of the emergency call broadcasting system of the present invention.
Fig. 3 is a schematic diagram of a specific implementation manner of the power amplifier circuit of the present invention.
Reference numerals: the audio amplifier comprises an IN-audio input, an OUT-audio output, a C1-first capacitor, a C2-second capacitor, a C3-third capacitor, a C4-fourth capacitor, an R1-first resistor, an R2-second resistor, an R3-third resistor, an R4-fourth resistor, a U1-power amplifier chip and a VCC-power supply.
Detailed Description
The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the embodiments after studying the specification. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be noted that the terms "mounted" and "connected" are to be interpreted broadly unless explicitly defined or limited otherwise. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): referring to fig. 1, fig. 2 and fig. 3, the digital wireless communication network broadcasting system for forest zones includes an interphone B, a communication broadcasting speaker, a communication base station, a scheduling system console, a scheduling system server and a scheduling system client PC, wherein the scheduling system client PC is connected with the scheduling system server, and the scheduling system server is connected with the scheduling system console;
the communication broadcasting sound box comprises an interphone A, a controller, an MP3, a power amplifier and a sound box, wherein the console is used for sending a control instruction, the control instruction is transmitted to the interphone A through a communication base station, the interphone A receives the control instruction to generate a control signal and transmits the control signal to the controller, and the controller controls the MP3 through the control signal to transmit a background music signal to the sound box through the power amplifier for broadcasting;
the interphone B or the client PC end of the dispatching system is connected through the interphone A of the communication base station, and the interphone A transmits the audio signals to the sound box for broadcasting through the power amplifier.
In the embodiment, the emergency broadcast is sent out through two ways of the interphone B and the client PC end of the dispatching system, so that the reliability of the system is enhanced; the communication broadcast sound box transmits data in a wireless mode, so that wiring is omitted, the system is convenient to install, and the system is suitable for field places such as scenic spots and the like; the local sound source is played through the MP3, so that the problem that the background music is not smoothly played and even the terminal is not played is avoided.
Specifically, as shown in fig. 1, the working principle of playing background music using MP3 is as follows: when the client PC end of the dispatching system sends out a control instruction, the control instruction is sent to the dispatching system server through the IP network, the dispatching system server processes the control instruction and sends the control instruction to the dispatching system console, the console encodes the control instruction again according to the wireless communication grid form through a built-in radio station or vocoder, finally the control instruction is transmitted through the communication base station and received by the interphone A, the interphone A transmits a control signal to the controller through the serial port, finally the MP3 broadcasts a local sound source according to the control signal, and the background music signal is amplified through the power amplifier and then played by the sound box.
As shown in fig. 2, the working principle of the emergency broadcast sent by the client PC of the dispatch system is as follows: after the client PC end of the dispatching system sends out an emergency call, the signal of the emergency call is an audio signal, a data packet of the call is sent to a dispatching system server through an IP network, the server processes the data packet and sends the data packet to a dispatching system console, the console encodes the data packet again according to a wireless communication grid mode through a built-in radio station or vocoder and sends the data packet, finally, the data packet is transmitted through a communication base station and received by an interphone A, the audio signal is amplified through a power amplifier and then sent to a sound box for broadcasting, and at the moment, the control signal generated by a controller can close the playing of background music of MP 3.
As shown in fig. 2, the working principle of the emergency broadcast sent by the interphone B is as follows: after the interphone B sends out the emergency call, the signal of the emergency call is an audio signal, the audio signal is transmitted through the communication base station and then received by the interphone A, the audio guide number is amplified through a power amplifier and then broadcasted to a sound box, and at the moment, the control signal generated by the controller can close the playing of background music of the MP 3. The software technology involved in all functions of the present invention is a simple technology known to those skilled in the art.
The communication broadcasting sound box is internally provided with a power supply system, the power supply system is in power supply connection with the interphone, the controller, the MP3, the power amplifier and the sound box, and the power supply system supplies power for commercial power or solar energy; the communication broadcasting sound box is internally provided with the fan and the heater, so that the sound box can be ensured to be in a dry and ventilated state, and the service life of the sound box is greatly prolonged.
Preferably, the power amplifier comprises a power amplifier circuit for amplifying the audio signal, and the power amplifier circuit comprises a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a power amplifier chip U1;
the audio input IN is connected with one end of a first resistor R1, the other end of the first resistor R1 is connected with one end of a second resistor R2, the other end of a second resistor R2 is connected with the non-inverting input end of a power amplification chip U1, the other end of the first resistor R1 is also connected with one end of a second capacitor C2, the other end of the second capacitor C2 is connected with the output end of the power amplification chip U1, one end of a first capacitor C1 is connected with the non-inverting input end of the power amplification chip U1, the other end of the first capacitor C1 is grounded, the inverting input end of the power amplification chip U1 is connected with one end of a third resistor R3, the other end of the third resistor R3 is grounded, a fourth resistor R4 is connected between the inverting input end of the power amplification chip U1 and.
The implementation mode is an implementation mode that the power amplifier amplifies audio signals and background music signals, and the specific working principle of the power amplifier circuit is as follows: the audio input IN is used as the input end of a signal to be amplified, the second resistor R2 is a positive feedback resistor, the fourth resistor R3 is a negative feedback resistor, and by introducing a positive feedback and a negative feedback method, when the signal frequency tends to zero, the positive feedback is weak because the reactance of the second capacitor C2 tends to infinity; as the signal frequency approaches infinity, the reactance of the first capacitor C1 approaches zero. Therefore, when the signal frequency is any value between zero and infinity, the power amplifier circuit can normally extract corresponding signals to be amplified, the third resistor R3 is a current-limiting resistor, the weak signals to be amplified are effectively amplified by arranging the power amplifier circuit, the sensitivity and the accuracy of the power method circuit for acquiring the signals to be amplified are improved, and the power amplifier chip U1 is powered by a power supply VCC.
One end of the third capacitor C3 is connected with the audio input IN, and the other end is connected with the first resistor R1; one end of the fourth capacitor C4 is connected with the output end of the power amplifier chip U1, and the other end of the fourth capacitor C4 is connected with a sound box as an audio output OUT. The third capacitor C3 and the fourth capacitor C4 are arranged at the audio input IN and the audio output OUT as isolation capacitors, so that the anti-interference performance of the power amplifier circuit is improved.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.
Claims (6)
1. A digital wireless communication network broadcasting system for forest zones, characterized in that: the system comprises an interphone B, a communication broadcast sound box, a communication base station, a dispatching system console, a dispatching system server and a dispatching system client PC end, wherein the dispatching system client PC end is connected with the dispatching system server which is connected with the dispatching system console;
the communication broadcasting sound box comprises an interphone A, a controller, an MP3, a power amplifier and a sound box, wherein the console is used for sending a control instruction, the control instruction is transmitted to the interphone A through a communication base station, the interphone A receives the control instruction to generate a control signal and transmits the control signal to the controller, and the controller controls the MP3 through the control signal to transmit a background music signal to the sound box through the power amplifier for broadcasting; the interphone B or the client PC end of the dispatching system is connected through the interphone A of the communication base station, and the interphone A transmits the audio signals to the sound box for broadcasting through the power amplifier.
2. A digital wireless communication network broadcasting system for forest zones according to claim 1, wherein: the power amplifier comprises a power amplifier circuit for amplifying background music signals and audio signals, and the power amplifier circuit comprises a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor and a power amplifier chip;
the audio input is connected with first resistance one end, the first resistance other end is connected with second resistance one end, the second resistance other end is connected with power amplifier chip in-phase input end, the first resistance other end still is connected with second electric capacity one end, the second electric capacity other end is connected with power amplifier chip output, first electric capacity one end is connected with power amplifier chip in-phase input end, the ground connection of the first electric capacity other end, power amplifier chip inverting input end is connected with third resistance one end, the ground connection of the third resistance other end, connect the fourth resistance between power amplifier chip inverting input end and its output, power amplifier chip output is connected with the audio amplifier as audio output.
3. A digital wireless communication network broadcasting system for forest zones according to claim 2, wherein: the power amplifier circuit also comprises a third capacitor and a fourth capacitor, wherein one end of the third capacitor is connected with the audio input, and the other end of the third capacitor is connected with the first resistor;
one end of the fourth capacitor is connected with the output end of the power amplifier chip, and the other end of the fourth capacitor is connected with the sound box as audio output.
4. A digital wireless communication network broadcasting system for forest zones according to claim 1, wherein: the control console is a wireless control console or a wired control console, the wireless control console is internally provided with a radio station, the wired control console is internally provided with a vocoder, and the radio station and the vocoder are used for converting a control command sent by the control console into wireless communication grid type codes.
5. A digital wireless communication network broadcasting system for forest zones according to claim 1, wherein: the communication broadcasting sound box is internally provided with a power supply system, the power supply system is connected with the interphone, the controller, the MP3, the power amplifier and the sound box in a power supply mode, and the power supply system supplies power for commercial power or solar energy.
6. A digital wireless communication network broadcasting system for forest zones according to claim 1, wherein: the communication broadcast sound box is internally provided with a fan and a heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020374730.9U CN211151965U (en) | 2020-03-23 | 2020-03-23 | Digital wireless communication network broadcasting system for forest area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020374730.9U CN211151965U (en) | 2020-03-23 | 2020-03-23 | Digital wireless communication network broadcasting system for forest area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211151965U true CN211151965U (en) | 2020-07-31 |
Family
ID=71749096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020374730.9U Expired - Fee Related CN211151965U (en) | 2020-03-23 | 2020-03-23 | Digital wireless communication network broadcasting system for forest area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211151965U (en) |
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2020
- 2020-03-23 CN CN202020374730.9U patent/CN211151965U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 Termination date: 20210323 |