CN209731399U - Recording and broadcasting system - Google Patents
Recording and broadcasting system Download PDFInfo
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- CN209731399U CN209731399U CN201920893500.0U CN201920893500U CN209731399U CN 209731399 U CN209731399 U CN 209731399U CN 201920893500 U CN201920893500 U CN 201920893500U CN 209731399 U CN209731399 U CN 209731399U
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- triode
- recording
- connect
- broadcasting system
- diode
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Abstract
The utility model discloses a kind of recording and broadcasting system, including recorded broadcast host, microphone, loudspeaker and power module, the microphone, loudspeaker and power module are connect with the recorded broadcast host, and the recorded broadcast host is built-in with audio-frequency module and video module；The power module includes DC power supply, first resistor, first diode, first triode, single-chip microcontroller, battery and voltage output end, DC power supply one end with the first resistor respectively, the connection of the collector of the power end of single-chip microcontroller and the first triode, the other end of the first resistor is connect with the anode of the first diode and voltage output end respectively, the cathode of the first diode is connect with the base stage of first triode, the ground terminal of the single-chip microcontroller is grounded, the emitter of first triode is connect with the anode of the battery, the cathode of the battery is grounded.The utility model circuit structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Description
Technical field
The utility model relates to recorded broadcast field, in particular to a kind of recording and broadcasting system.
Background technique
In simple terms, the live video that shoot with video-corder, audio, the picture signal of electronic equipment (can be included electricity by recording and broadcasting system
Brain, video presenter etc.) integration synchronous recording is carried out, standardized files in stream media is generated, externally live streaming, storage, later period are used to
Editor, program request.Spectators can log in the audio-visual and graph text information that recording and broadcasting system server watches live streaming by IE browser, can also
Later period order video information.
Fig. 1 is the circuit diagram of the power pack of traditional recording and broadcasting system, from figure 1 it appears that traditional recording and broadcasting system
The component that uses of power pack it is more, circuit structure is complicated, and hardware cost is higher, it has not been convenient to safeguard.In addition, due to tradition
The power pack of recording and broadcasting system lacks corresponding circuit protection function, such as: lack current-limiting protection function, causes the safety of circuit
Property and reliability are poor.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of circuit knot
Structure is relatively simple, cost is relatively low, maintains easily, the higher recording and broadcasting system of the safety and reliability of circuit.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of recording and broadcasting system, including recorded broadcast
Host, microphone, loudspeaker and power module, the microphone, loudspeaker and power module are connect with the recorded broadcast host,
The recorded broadcast host is built-in with audio-frequency module and video module；
The power module include DC power supply, first resistor, first diode, the first triode, single-chip microcontroller, battery and
Voltage output end, the DC power supply respectively with one end of the first resistor, the power end of single-chip microcontroller and the first triode
Collector connection, the other end of the first resistor are connect with the anode of the first diode and voltage output end respectively, institute
The cathode for stating first diode is connect with the base stage of first triode, the ground terminal ground connection of the single-chip microcontroller, and described first
The emitter of triode is connect with the anode of the battery, the cathode ground connection of the battery.
In recording and broadcasting system described in the utility model, the model S-272T of the first diode.
In recording and broadcasting system described in the utility model, the power module further includes second resistance, the second resistance
One end connect with the emitter of first triode, the anode of the other end of the second resistance and the battery is connect.
In recording and broadcasting system described in the utility model, the resistance value of the second resistance is 38k Ω.
In recording and broadcasting system described in the utility model, first triode is PNP type triode.
The recording and broadcasting system for implementing the utility model has the advantages that due to being equipped with recorded broadcast host, microphone, raising
Sound device and power module；Power module includes that DC power supply, first resistor, first diode, the first triode, monolithic are mechanical, electrical
Pond and voltage output end, for the power module compared with the power pack of traditional recording and broadcasting system, the component used is less, due to
Some components are saved, hardware cost can be reduced in this way, in addition, first diode is for carrying out current-limiting protection, therefore electricity
Line structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the circuit diagram of the power pack of traditional recording and broadcasting system；
Fig. 2 is the structural schematic diagram in the utility model recording and broadcasting system one embodiment；
Fig. 3 is the circuit diagram of power module in the embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the utility model recording and broadcasting system embodiment, the structural schematic diagram of the recording and broadcasting system is as shown in Figure 2.It, should in Fig. 2
Recording and broadcasting system includes recorded broadcast host 1, microphone 2, loudspeaker 3 and power module 4, wherein microphone 2, loudspeaker 3 and power supply mould
Block 4 is connect with recorded broadcast host 1, and recorded broadcast host 1 is built-in with audio-frequency module 11 and video module 12.
The audio-frequency module 11 is used to handle the audio data of microphone 2 and loudspeaker 3.Specifically, due to microphone 2 and raising
Signal used by sound device 3 is analog signal, and signal handled by recorded broadcast host 1 is digital information, therefore, audio-frequency module
11 by being converted to the digital signal that recorded broadcast host 1 is managed for the analog signal of microphone 2 and loudspeaker 3, and by by recorded broadcast master
The digital signal of machine 1 is converted to the analog signal of microphone 2 and loudspeaker 3, realizes analog-to-digital conversion.Simultaneously in order to avoid number system
The analog-to-digital conversion ability of audio-frequency module 11 and anti-interference can be enhanced in system and simulation system the problem of not interfereing with each other, the utility model
Module solves.
The 1 highly integrated audio-frequency module 11 in the inside of recorded broadcast host, sound can be acquired and play by only using tone frequency channel wire.Audio mould
The power supply of block 11 is powered with recorded broadcast host 1, and external microphone 2 and loudspeaker 3 can not have to power supply.The integrated audio-frequency module
11 and video module 12 on a circuit board, reduce sound in the transmission loss of cable, make the sound of recorded broadcast and play
Sound is more clean and undistorted.
In the present embodiment, recorded broadcast host 1, microphone 2, loudspeaker 3, audio-frequency module 11 and video module 12 are all made of existing
Structure in technology realizes that working principle used is also working principle in the prior art, no longer large fierce dog is stated herein.
Fig. 3 is the circuit diagram of power module in the present embodiment, in Fig. 3, the power module 4 include DC power supply VCC,
First resistor R1, first diode D1, the first triode Q1, single-chip microcontroller U1, battery BAT and voltage output end Vo, wherein direct current
Power supply VCC is connect with the collector of one end of first resistor R1, the power end of single-chip microcontroller U1 and the first triode Q1 respectively, and first
The other end of resistance R1 is connect with the anode of first diode D1 and voltage output end Vo respectively, the cathode of first diode D1 with
The base stage of first triode Q1 connects, and the ground terminal ground connection of single-chip microcontroller U1, the emitter and battery BAT of the first triode Q1 is just
Pole connection, the cathode ground connection of battery BAT.
For the power module 4 compared with the power pack of traditional recording and broadcasting system in Fig. 1, the component used is less, electricity
Line structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.First diode
D1 is Current Limiting Diodes, carries out current-limiting protection for the base current to the first triode Q1.The principle of current-limiting protection is as follows: when
When the base current of first triode Q1 is larger, the base current of the first triode Q1 can be reduced by first diode D1
Size, keep it in normal operating conditions, and be unlikely to cause greatly very much to burn out because of electric current the component in circuit, therefore electricity
The safety and reliability on road is higher, and is realized with less component than traditional technology superior technique effect.
It is noted that in the present embodiment, the model S-272T of first diode D1.Certainly, in practical applications,
First diode D1 can also have the diode of similar functions using other models.
When DC power supply VCC has electricity, C point current potential is high level, and the first triode Q1 ends, and B access is turned off, direct current
The voltage of power supply VCC gives single-chip microcontroller U1 power supply, i.e. A access, meanwhile, the voltage of DC power supply VCC also pass through first resistor R1 and
The emitter of first triode Q1 charges to battery BAT.When DC power supply VCC is out of power, C point current potential be low level, the one or three
Pole pipe Q1 conducting, battery BAT are powered by the first triode Q1 to single-chip microcontroller U1, i.e. B access；In this way, no matter DC power supply VCC
Whether there is electricity, can be transferred through that A access and B access is used alternatingly, to realize the power supply offer to single-chip microcontroller U1, when single-chip microcontroller U1 is wanted
When quick start or even zero-time starting, it can make a response rapidly.
In the present embodiment, the first triode Q1 is PNP type triode.Certainly, in practical applications, the first triode Q1
It can be NPN type triode, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes second resistance R2, one end of second resistance R2 and the first triode Q1
Emitter connection, the other end of second resistance R2 connect with the positive of battery BAT.Second resistance R2 is current-limiting resistance, is used for
Current-limiting protection is carried out to the emitter current of the first triode Q1.The principle of current-limiting protection is as follows: when the hair of the first triode Q1
When emitter current is larger, the size of the emitter current of the first triode Q1 can be reduced by second resistance R2, makes its guarantor
It holds in normal operating conditions, and is unlikely to lead to very much to burn out the component in circuit greatly because of electric current, to further enhance circuit
Safety and reliability.
It is noted that the resistance value of second resistance R2 is 38k Ω in the present embodiment.Certainly, in practical applications,
The resistance value of two resistance R2 can adjust accordingly as the case may be, that is, the resistance value of second resistance R2 can be according to specific
Situation is increased accordingly or is reduced.
In short, in the present embodiment, the power module 4 is compared with the power pack of traditional recording and broadcasting system, first device for using
Part is less, and circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.Separately
Outside, Current Limiting Diodes are equipped in the power module 4, therefore the safety and reliability of circuit is higher.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of recording and broadcasting system, which is characterized in that including recorded broadcast host, microphone, loudspeaker and power module, the Mike
Wind, loudspeaker and power module are connect with the recorded broadcast host, and the recorded broadcast host is built-in with audio-frequency module and video module；
The power module includes DC power supply, first resistor, first diode, the first triode, single-chip microcontroller, battery and voltage
Output end, the DC power supply current collection with one end of the first resistor, the power end of single-chip microcontroller and the first triode respectively
Pole connection, the other end of the first resistor connect with the anode of the first diode and voltage output end respectively, and described the
The cathode of one diode is connect with the base stage of first triode, the ground terminal ground connection of the single-chip microcontroller, the one or three pole
The emitter of pipe is connect with the anode of the battery, the cathode ground connection of the battery.
2. recording and broadcasting system according to claim 1, which is characterized in that the model S-272T of the first diode.
3. recording and broadcasting system according to claim 2, which is characterized in that the power module further includes second resistance, described
One end of second resistance is connect with the emitter of first triode, and the other end of the second resistance and the battery are just
Pole connection.
4. recording and broadcasting system according to claim 3, which is characterized in that the resistance value of the second resistance is 38k Ω.
5. recording and broadcasting system according to any one of claims 1 to 4, which is characterized in that first triode is positive-negative-positive
Triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893500.0U CN209731399U (en) | 2019-06-13 | 2019-06-13 | Recording and broadcasting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893500.0U CN209731399U (en) | 2019-06-13 | 2019-06-13 | Recording and broadcasting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209731399U true CN209731399U (en) | 2019-12-03 |
Family
ID=68675353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920893500.0U Expired - Fee Related CN209731399U (en) | 2019-06-13 | 2019-06-13 | Recording and broadcasting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209731399U (en) |
-
2019
- 2019-06-13 CN CN201920893500.0U patent/CN209731399U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191203 Termination date: 20200613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |