CN206835296U - Wireless teaching microphone system - Google Patents
Wireless teaching microphone system Download PDFInfo
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- CN206835296U CN206835296U CN201720477805.4U CN201720477805U CN206835296U CN 206835296 U CN206835296 U CN 206835296U CN 201720477805 U CN201720477805 U CN 201720477805U CN 206835296 U CN206835296 U CN 206835296U
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- frequency
- information transceiver
- microphone system
- receiver
- emitter
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Abstract
It the utility model is related to microphone field, more particularly to wireless teaching microphone system, including some receivers and some emitters, the emitter includes voice transmitter, information transceiver and first data transmission machine are made with step number to frequency, the receiver includes speech receiver, frequency-selecting number makes information transceiver and the second data-set, the voice transmitter is connected with the speech receiver by radio communication, it is described to frequency with step number make information transceiver and the frequency-selecting number make information transceiver by radio communication connection and the frequency-selecting number make information transceiver between communicate to connect, the first data transmission machine and second data-set communication connection.The wireless teaching microphone system, is integrated with a variety of educational aids, can automatically select microphone works frequency range, and without artificial frequency-selecting, start can search for networking automatically, distributes high-quality channel automatically and uses, and is inherently eliminated disconnected frequency, string frequency phenomenon.
Description
【Technical field】
It the utility model is related to microphone field, more particularly to wireless teaching microphone system.
【Background technology】
Teaching is now widely used for a variety of religions such as large, medium and small universities and colleges, training organization and all kinds of conference centres with emitter
Place is educated, teacher, student can be used.
Domestic teaching uses wireless mode mostly with microphone system at present, has a variety of wireless speech such as RF, infrared to pass
Defeated mode, the different frequency range used in can also be divided into UHF microphones, 2.4GHz microphones etc. in RF modes.But
No matter any mode is used to carry out wireless speech transmission, the selection of frequency still needs manual setting to determine, and needs to apply
Worker person possesses certain less radio-frequency professional knowledge, to ensure more microphone small ranges while will not to disturb when working
Phenomenon.
As noted previously, as place of education workmen does not possess the less radio-frequency knowledge of specialty mostly, traditional is wireless
The disconnected frequency of teaching microphone, be easily disturbed, stability difference the shortcomings of remain unchanged presence and even more serious, between different classrooms
Difficult point when the frequency distribution and system installation and debugging of emitter.Application of the wireless teaching microphone in teaching field needs
Want the needs of further technological innovation is to meet and meet current user.
Meanwhile current teaching microphone function is more single, teacher may realize that voice expands using multiple equipment
The classroom common functions such as sound, laser pointer, PPT page turnings control, are used relatively complicated.
【Utility model content】
In order to overcome above mentioned problem, overcome above mentioned problem the utility model proposes one kind and ensure that transmitter communications are normally entered
Capable wireless teaching microphone system.
The utility model solves a kind of technical scheme that above-mentioned technical problem provides：A kind of microphone system is provided, wrapped
Include some receivers and some emitters, the emitter includes voice transmitter, makes information transceiver and the with step number to frequency
One data-set, the receiver includes speech receiver, frequency-selecting number makes information transceiver and the second data-set, described
Voice transmitter is connected with the speech receiver by radio communication, described to make information transceiver and the choosing with step number to frequency
Frequency make information transceiver by radio communication connection and the frequency-selecting number make information transceiver between communicate to connect, described first
Data-set and second data-set communication connection.
Preferably, the emitter includes PPT page turners and air mouse, and the PPT page turners and air mouse are electrically connected
It is connected to the first data transmission machine and is communicated to connect by the first data transmission machine and the receiver.
Preferably, the emitter surface is provided with four buttons, and two of which forms PPT page turners, and described remaining two
Individual composition air mouse.
Preferably, four buttons are in bunge bedstraw herb shape.
Preferably, the voice transmitter includes one the oneth MCU single-chip microcomputers, and passes through the first MCU single-chip microcomputers and institute
State and make information transceiver communicate to connect with step number frequency.
Preferably, the speech receiver includes one the 2nd MCU single-chip microcomputers, and passes through the 2nd MCU single-chip microcomputers and institute
Stating frequency-selecting number makes information transceiver communicate.
Preferably, the speech receiver includes several phonetic incepting passages.
Compared with prior art, the microphone system can automatically select microphone works frequency range, using with avoiding
With the time division multiple acess access communications agreement for solving communication contention aware ability, without artificial frequency-selecting, start can search for networking automatically, from
The dynamic high-quality channel of distribution uses, and is inherently eliminated disconnected frequency, string frequency phenomenon.Ensure that properties of product are relatively reliable from design, pacify
Dress and use are more convenient.Make passage carry out automatic synchronization to frequency additionally by single number, simplify mode of operation, it is only necessary to letter
Single operation emitter can be achieved, without the receiver of complex operation, in addition, PPT page turners, air mouse are integrated into language
Sound transmitting terminal, realize plurality of devices functional unification.
【Brief description of the drawings】
Fig. 1 is the modular structure schematic diagram of the utility model wireless teaching microphone system；
Fig. 2 is the transmission flow of the utility model wireless teaching microphone system automatic network-building；
Fig. 3 is the reception flow of the utility model wireless teaching microphone system automatic network-building；
Fig. 4 is the utility model wireless teaching microphone system automatic frequency aligning synchronized transmissions end flow；
Fig. 5 is the utility model wireless teaching microphone system automatic frequency aligning synchronization receiving terminal flow.
【Embodiment】
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining
The utility model, it is not used to limit the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
The relative position being only limitted in given view, rather than absolute position.
In addition, and it can not be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for describing purpose
Solve to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in description of the present utility model
It is individual " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
Referring to Fig. 1, a kind of wireless teaching microphone system 100, including some receivers 10 and some emitters 20, institute
Stating emitter 20 includes voice transmitter 21, makes information transceiver 23 and first data transmission machine 25 with step number to frequency, described to connect
Receipts machine 10 includes speech receiver 11, frequency-selecting number makes the data-set 15 of information transceiver 13 and second.The voice transmitter
21 are connected with the speech receiver 11 by radio communication, described to make information transceiver 23 and the frequency-selecting number with step number to frequency
Make information transceiver 13 connected by radio communication and with the communication frequency of the voice transmitter 21 and the speech receiver 11
Duan Butong, the frequency-selecting number, which makes, can realize radio communication between information transceiver 13, and communications band with it is described synchronous to frequency
Number makes information transceiver 23 make the communications band of information transceiver 13 identical with the frequency-selecting number.The first data transmission machine 25
Communicated to connect with second data-set 15.
The voice transmitter 21 includes one the oneth MCU single-chip microcomputers, and by the first MCU single-chip microcomputers with described to frequency
Make information transceiver 23 communicate to connect with step number, realize the management between different phonetic emitter 21.
Specifically, it is described to make information transceiver 23 use based on the frequency hopping protocol of time division multiple acess to the hair with step number frequency
Penetrate machine 20 to be managed, control whether each voice transmitter 21 carries out telephone operation.
The voice transmitter 21 picks up microphone voice input signal, is launched after carrying out digital modulation by UHF antennas
Voice messaging.
The emitter 20 is additionally provided with PPT page turners and air mouse, and specifically, the emitter surface is provided with four
Individual button, two of which form PPT page turners, and remaining two compositions air mouse, four buttons are in bunge bedstraw herb shape.Institute
State PPT page turners and air mouse be electrically connected to the first data transmission machine 25 and by the first data transmission machine 25 with
The receiver 10 communicates to connect.
First conveyer 25 is used for the data transfer of the PPT page turners and air mouse to the second of receiver
Data-set 15.
The speech receiver 11 includes one the 2nd MCU single-chip microcomputers, and passes through the 2nd MCU single-chip microcomputers and the frequency-selecting
Number makes information transceiver 13 communicate, for example, the 2nd MCU single-chip microcomputers make information transceiver 13 be electrically connected with the frequency-selecting number, enters
And communication is realized by the conduction of electric signal, so as to realize the transmitting of wireless data and reception.
The speech receiver 11 includes several phonetic incepting passages, and reception antenna receives electromagnetic wave signal, through numeral
Signal demodulation, Speech processing, amplification, output voice signal.
The frequency-selecting number uses carrier sense time division multiple acess (CSTDMA) communication protocol between making information transceiver 13, application
High rate data transmission number makes information, realizes that the frequency-selecting number of not chummery in place makes automatic network-building between information transceiver 13, in real time
Equipment communication channel resource in monitoring network, high-quality channel is distributed automatically use, it is ensured that all receiving devices are operated in excellent in net
Matter channel.
Second data-set 15 receives the data of the first data transmission machine transmission.
The emitter 20 includes making information transceiver 23 with step number to frequency, described to make information transceiver 23 with step number to frequency
Using the frequency hopping protocol based on time division multiple acess, the receiver 10 makes information transceiver 13, the frequency-selecting number order including frequency-selecting number
Information transceiver 13 uses carrier sense time division multiple acess (CSTDMA) communication protocol, described to make information transceiver with step number to frequency
23 frequency hopping protocols based on time division multiple acess used make the carrier sense time-division of the use of information transceiver 13 more with the frequency-selecting number
Location (CSTDMA) communication protocol, which is engaged, realizes automatic frequency aligning synchronizing function.The frequency-selecting number makes information transceiver 13 use simultaneously
Carrier sense time division multiple acess (CSTDMA) communication protocol, realize automatic network-building, avoid communication contention aware, realize automatic choosing
Frequently, without artificial frequency-selecting, it is ensured that all voice transmitters are operated in high-quality channel bands.
Also referring to Fig. 2 and Fig. 3, automatic network-building process includes transmission flow and receives flow, and the transmission flow is such as
Under：When newly adding a receiver in systems, initialized first, divide and send using carrier sense TDMA
Time slot, it is ensured that each equipment sends in the cycle at one and once sends window, and each window that sends includes 5 transmitters
Meeting.Then choose time slot and determine transmission time next time, after the transmission time to be achieved, networking application is ready for sending, before transmission
It need to first judge whether current device is receiving RSSI (the Received Signal Strength of signaling and channel
Indication, the signal intensity instruction of reception) whether higher level is in, if the receiver added in advance is in another
System, and data are received, or the RSSI of present channel is in reduced levels, then delay waits send opportunity next time, directly
Exhausted to 5 send opportunity for once sending window, can not also complete to send networking application if 5 send opportunity are finished,
Then wait the transmission window of next time slot.If current device is not receiving signaling and the RSSI of channel is higher, equipment
Send networking application.The machine id information is sent to existing microphone system, application when sending networking application and adds network, networking
After application is sent, information transceiver is made to switch to reception state the frequency-selecting number of receiver, you can to carry out reception flow.
The reception flow is as follows：Receiver in system receives the networking application of the receiver added in advance, and examines
Whether effective networking application is tested, if effectively, receiving the receiver added in advance and networking, and the id information in networking application is entered
Storehouse, after networking, detect whether the receiver newly added conflicts with current channel, if so, then being selected again according to least interference principle
Determine channel, and switching channels.
Automatic frequency aligning synchronization flow makes information transceiver 23 and the receiver to frequency by the emitter 20 with step number
10 frequency-selecting number makes information transceiver 13 complete jointly.
Please continue to refer to Fig. 4 and Fig. 5, emitter 20 sends number by broadcast channel and makes information, and the number makes packet contain
Emitter 20 id information of itself, send and wait return data in a dedicated channel after broadcast, if receiving return data,
Send successfully, otherwise send failure, it is necessary to resend broadcast；Return data is received in dedicated channel, receiving return data needs
Verified, to be confirmed whether correct back information, verification is verified by self-ID information, correct back information bag
Contained emitter self-ID information, then verified by the id information of emitter itself, if data check not by, after
It is continuous to wait return data, until waiting scheduled time t1, if not receiving return data yet after scheduled time t1, resend
Broadcast；After data check is correct, correct back information is confirmed as, the id information of receiver is contained in back information, and will
The receiver id information of back information takes out to receiver 10 and sends confirmation, finally judges whether to send successfully, if so, then
Transmitting flow terminates, if not determined yet in preset time t2, judges to send time-out, resends broadcast.
Receiver 10 is in reception state in original state, and frequency-selecting number makes the continuous listening broadcast channel of information transceiver 13 be
The no number that is connected to makes information, if receiving number makes information, number makes in information and includes emitter id information, then takes out emitter id information
Together with receiver itself id information by dedicated channel to emitter 20 send back information, in scheduled time t3 judge be
It is no to return successfully, if receiving the confirmation of emitter transmission in scheduled time t3, send successfully, scheduled time t3
Confirmation is inside not affected by, then to frequency synchronization failure, waits receiver to resend number and makes information again synchronous to frequency；Receive
, it is necessary to verify the confirmation being subject to after the confirmation of emitter 20, if verification is incorrect, continue waiting for confirming
Information, correctly, then to the same the end of the step of frequency.
Above-mentioned synchronizing process emitter 20 and receiver 10 have passed through three-way handshake, and emitter 20 sends out emitter id information
Receiver 10 is given, emitter id information and receiver id information are returned to emitter 20 by receiver 10, then emitter 20
The id information of receiver is returned into receiver 10 again, it is ensured that reliable synchronization.
Compared with prior art, the microphone system 100 can automatically select microphone works frequency range, using with keeping away
Exempt from and solve the time division multiple acess access communications agreement of communication contention aware ability, without artificial frequency-selecting, start can search for networking automatically,
Automatically distribute high-quality channel to use, be inherently eliminated disconnected frequency, string frequency phenomenon.From design ensure properties of product it is relatively reliable,
Installation and use are more convenient.Make passage carry out automatic synchronization to frequency additionally by single number, simplify mode of operation, it is only necessary to
Simple operations emitter can be achieved, without the receiver of complex operation, in addition, PPT page turners, air mouse are integrated into
Voice transmission end, realize plurality of devices functional unification.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every any modification made within design of the present utility model, equivalent substitution and improvement etc. should be included in the utility model
Scope of patent protection in.
Claims (7)
- A kind of 1. wireless teaching microphone system, it is characterised in that：Including some receivers and some emitters, the emitter Information transceiver and first data transmission machine are made including voice transmitter, to frequency with step number, the receiver includes phonetic incepting Machine, frequency-selecting number make information transceiver and the second data-set, and the voice transmitter passes through wireless with the speech receiver Communication connection, it is described to frequency with step number make information transceiver and the frequency-selecting number make information transceiver be connected by radio communication and The frequency-selecting number communicates to connect between making information transceiver, the first data transmission machine and second data-set communication Connection.
- 2. microphone system as claimed in claim 1, it is characterised in that the emitter includes PPT page turners and aerial mouse Mark, the PPT page turners and air mouse are electrically connected to the first data transmission machine and by the first data transmission machine Communicated to connect with the receiver.
- 3. microphone system as claimed in claim 2, it is characterised in that the emitter surface is provided with four buttons, its In two composition PPT page turners, it is described it is remaining two composition air mouse.
- 4. microphone system as claimed in claim 3, it is characterised in that four buttons are in bunge bedstraw herb shape.
- 5. microphone system as claimed in claim 1, it is characterised in that the voice transmitter includes one the oneth MCU monolithics Machine, and make information transceiver communicate to connect with step number frequency with described by the first MCU single-chip microcomputers.
- 6. microphone system as claimed in claim 5, it is characterised in that the speech receiver includes one the 2nd MCU monolithics Machine, and make information transceiver communicate with the frequency-selecting number by the 2nd MCU single-chip microcomputers.
- 7. microphone system as claimed in claim 1, it is characterised in that the speech receiver includes several phonetic inceptings Passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720477805.4U CN206835296U (en) | 2017-04-28 | 2017-04-28 | Wireless teaching microphone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720477805.4U CN206835296U (en) | 2017-04-28 | 2017-04-28 | Wireless teaching microphone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206835296U true CN206835296U (en) | 2018-01-02 |
Family
ID=60769196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720477805.4U Active CN206835296U (en) | 2017-04-28 | 2017-04-28 | Wireless teaching microphone system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206835296U (en) |
-
2017
- 2017-04-28 CN CN201720477805.4U patent/CN206835296U/en active Active
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