CN200994132Y - Wireless microphone system - Google Patents
Wireless microphone system Download PDFInfo
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- CN200994132Y CN200994132Y CN 200720047690 CN200720047690U CN200994132Y CN 200994132 Y CN200994132 Y CN 200994132Y CN 200720047690 CN200720047690 CN 200720047690 CN 200720047690 U CN200720047690 U CN 200720047690U CN 200994132 Y CN200994132 Y CN 200994132Y
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- microphone
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Abstract
The utility model discloses a wireless microphone system, which comprises a wireless microphone receiver and a wireless microphone. The utility model is characterized in that the wireless microphone receiver comprises a main circuit of the receiver, a circuit connected with the main circuit for receiving, disposing and exporting wireless audio, and a transmission module for RF wireless data of the receiver. Meanwhile, the wireless microphone comprises a main circuit of microphone, a circuit connected with the main circuit for sound pickup, sound disposal and emitting, and a transmission module for RF wireless data of the microphone. The working frequencies of the circuit for receiving, disposing and exporting the wireless audio of the receiver and the circuit for sound pickup and disposal of the microphone, and the emitting circuit are controlled by respective main circuits. In case of the same working frequency, transmission connection of wireless data is achieved between these two main circuits. The transmission connection of wireless data for control commands and status information between the receiver and the microphone is achieved by the transmission module for RF wireless data of receiver and the transmission module for RF wireless data of microphone.
Description
Technical field
The utility model relates to a kind of wireless microphone system.
Background technology
Wireless microphone was widely used in the later stage eighties, was at that time to adopt simple LC oscillation circuit circuit and modulating FM working method to transmit voice, and frequency stability is poor.To the beginning of the nineties along with electronics industry high speed development and new component occur, wireless microphone begins to adopt the quartz crystal frequency lock-in techniques in a large number, makes it be operated in a high stability working frequency points, has improved the functional reliability of system greatly.To the later stage nineties because wireless frequency resource growing tension, a lot of frequencies are all interfering with each other, cause system's instability, so abroad begin to occur adopting the product of PLL frequency synthesis technique to solve interference problem, but adopting this technology thing followed problem is to operate very complexity, separate receiver and microphone and do independent the adjustment.Begin to have occurred utilizing the synchronizing frequency control that engages in the dialogue of infrared transmission technology on the nearly 2 years markets again, but it is short that its shortcoming is a distance, high directivity can't be realized dynamic real-time operation, is easy to generate mistake, operation inconvenience, even causes instability to bring to whole system to seriously influence.
Summary of the invention
At the problems referred to above, the purpose of this utility model be to provide a kind of easy to operate, use wireless microphone system reliable, working stability.
The technical scheme that the utility model adopted is:
Wireless microphone system, comprise wireless microphone receiver and wireless microphone microphone, it is characterized in that: wireless microphone receiver comprises the receiver main circuit, connects wireless speech reception processing and the output circuit and the receiver RF wireless data transmission module of main circuit; The wireless microphone microphone comprises the microphone main circuit, the pickup and the Audio Processing that connect main circuit, radiating circuit and microphone RF wireless data transmission module, the wireless speech of receiver receives the pickup and the Audio Processing of processing and output circuit and microphone, the operating frequency of radiating circuit is controlled by main circuit separately respectively, both realize that under the identical situation of operating frequency wireless data transmission connects, and the control command between receiver RF wireless data transmission module and microphone RF wireless data transmission module realization receiver and the microphone and/or the wireless data transmission of state information are connected.
The beneficial effects of the utility model are: wireless microphone system adopts two tunnel message transmission mechanism, and one the tunnel is voice transfer, is responsible for the acoustic information that microphone receives is transferred to receiver; Another road is the RF wireless data transmission, is responsible for control command, state information between transmission receiver and the microphone, by RF wireless data transmission circuit, realizes that receiver and microphone carry out wireless data communication.According to different needs, can realize 1, the operating frequency of the frequency energy of microphone and receiver is synchronous fast, need not separately receiver and microphone and do independent the adjustment, perhaps can fully phase out all buttons of microphone; 2, eliminate frequencies unstable, that interference source is many fast; But 3, be operated in optimum state at different use occasion operator rapid adjustment microphones; 4, receiver can be visited the functions such as operating state of microphone at any time.The utility model utilizes ripe RF wireless data transmission module to be hardware platform, reaches single-chip microcomputer control technology and calls different software flexibly, realizes that receiver is multi-functional to the wireless microphone remote control.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the structured flowchart of microphone of the present utility model;
Fig. 2 is the structured flowchart of receiver of the present utility model;
Fig. 3 is the guidance code oscillogram of RF wireless data communication coding;
Fig. 4 is communication data " 0 " oscillogram of RF wireless data communication coding;
Fig. 5 is communication data " 1 " oscillogram of RF wireless data communication coding;
Fig. 6 is RF wireless data communication coding waveforms figure;
Fig. 7 is RF wireless data communication numeric data code composition figure.
Embodiment
With reference to Fig. 1, Fig. 2, wireless microphone system, comprise wireless microphone receiver and wireless microphone microphone, this microphone can be hand-hold type, tie clip formula or seat stand formula etc., and wireless microphone receiver comprises the receiver main circuit, connects wireless speech reception processing and the output circuit and the receiver RF wireless data transmission module of main circuit; The wireless microphone microphone comprises the microphone main circuit, the pickup and the Audio Processing that connect main circuit, radiating circuit and microphone RF wireless data transmission module, the wireless speech of receiver receives the pickup and the Audio Processing of processing and output circuit and microphone, the operating frequency of radiating circuit is controlled by main circuit separately respectively, both realize that under the identical situation of operating frequency wireless data transmission connects, and the control command between receiver RF wireless data transmission module and microphone RF wireless data transmission module realization receiver and the microphone and/or the wireless data transmission of state information are connected.
Wherein, the receiver main circuit comprises single-chip microcomputer, connects memory, operation keyboard and the information display device of single-chip microcomputer, and single-chip microcomputer has the connectivity port to connect wireless speech reception processing and output circuit and receiver RF wireless data transmission module; The microphone main circuit comprises single-chip microcomputer and the memory that is connected single-chip microcomputer, and this single-chip microcomputer has the connectivity port to connect pickup and Audio Processing, radiating circuit and microphone RF wireless data transmission module.
Wherein, describedly be used to transmit control command between receiver and the microphone and/or the RF wireless data transmission module of state information is made up of antenna, RF wireless data communication module and coding and decoding circuit, RF wireless data communication module connects the connectivity port of main circuit by the coding and decoding circuit.
Further, described receiver main circuit also comprises data acquisition module, and the output of this data acquisition module connects single-chip microcomputer, and input connects the audio sample circuit, so that receiver carries out the interference spectrum analysis.
Further, described receiver main circuit also comprises data acquisition module, and the output of this data acquisition module connects single-chip microcomputer, input connection status Acquisition Circuit in order to show various states, is convenient to collect various state informations, send it back receiver, be convenient to control desk and grasp the microphone operating position.
Further, the input of described data acquisition module can also connect the battery voltage sampling circuit, be convenient to showing on the microphone that battery electric quantity information or the RF wireless data communication module by microphone send to information such as battery electric quantity on the receiver, are convenient to the operating position that control desk is grasped microphone battery.
In addition, described microphone main circuit can also comprise operation keyboard and the display unit that is connected with single-chip microcomputer, is convenient to carry out various settings from the microphone end.
Further, the single-chip microcomputer of described microphone main circuit has the connectivity port to connect pickup and Audio Processing, radiating circuit by sensitivity control circuit, the sensitivity control command of receiver transfers to microphone by RF wireless data communication module, is controlled by the sensitivity of this sensitivity control circuit microphone by the microphone main circuit.
Below wireless microphone system of the present utility model is described in further detail.
" RF wireless data communication " circuit that native system is set, its operation principle is as follows:
Circuit adopts practical coding and decoding circuit and two pairs of high-performance RF wireless data communication modules, and each is a pair of for receiver, microphone, realizes that two single-chip microprocessor MCU carry out wireless duplex signaling.The course of work: single-chip microprocessor MCU is given coding circuit data and is encoded, give the RF wireless transmitter module after the coding and launch a radiofrequency signal by antenna, information receives by antenna and gives RF wireless receiving module, gives single-chip microprocessor MCU after the decoding circuit decoding and handles.Data send and reception is scm software control, the data communication rule partly is made up of guidance code, synchronous code, data and data radix-minus-one complement four, data are made up of command code, ID sign indicating number, operating data again, and wireless telecommunications rule oscillogram is referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7.
Each receiver has its fixing ID numbering, determines when dispatching from the factory.Adjust microphone and receiver and all enter " microphone binding " function, receiver sends to microphone to ID number with the binding instruction by the RF wireless data transfer module, after microphone receives the binding instruction, the ID sign indicating number that storage receives covers original ID sign indicating number, realize the binding of microphone to receiver, have only after microphone and receiver bind one to one, microphone and receiver just can carry out wireless data communication, that is to say that this microphone can only be controlled with the receiver of its binding, produce faulty operation in the time of can avoiding multimachine to use simultaneously like this other unit.
Microphone and receiver all pass through " keyboard " and the display screen menu enters " microphone binding " function, press " determining " button of receiver keyboard, single-chip microprocessor MCU sends to microphone to the ID of receiver number with the binding instruction by the RF wireless data transfer module, after microphone receives the binding instruction, the ID sign indicating number is stored into the ID sign indicating number covering among the original EEPROM of handle in the eeprom memory, and the microphone of not binding is directly stored the ID sign indicating number.
The MCU program control:
(1) [intelligent frequency chases after lock] function realizes principle:
Realize that intelligent frequency chases after lock function, enter " frequency chases after lock " function of receiver, receiver begins to carry out after the interference spectrum analysis in its working band, be locked in one and do not have the interference source frequency, receive the system that meets sb. at the airport simultaneously and send Frequency Synchronization by the RF data transmission module and instruct microphone, realize that frequency fast synchronously and avoid frequency interferences.
Specifically enter receiver " frequency chases after lock " function by " keyboard " and display screen menu, receiver single-chip microprocessor MCU in its working band calculates frequency data, send to Phase Lock Loop IC then, give single-chip microprocessor MCU by audio sample circuit return data after handling, single-chip microprocessor MCU begins to judge whether this frequency has interference, if noisy frequency source, single-chip microprocessor MCU continues the next frequency of scanning, after scanning a glitch-free frequency, give Phase Lock Loop IC frequency data, the operating frequency of receiver locks at once after the made of hardware circuits which process, send Frequency Synchronization by the RF data transmission module simultaneously and instruct microphone, microphone receives after the data, single-chip microprocessor MCU calculates frequency data and gives Phase Lock Loop IC, microphone can send the operating frequency identical with receiver at once after the made of hardware circuits which process, realizes that frequency is synchronous fast and avoids frequency interferences.
(2) [manually frequency is switched] function realizes principle:
Enter " manually frequency is switched " state of receiver by " keyboard " and display screen menu, behind the selected good channel, give Phase Lock Loop IC frequency data, the operating frequency of receiver locks at once after the made of hardware circuits which process, send Frequency Synchronization by the RF data transmission circuit simultaneously and instruct microphone, microphone receives after the data, and single-chip microprocessor MCU calculates frequency data and gives Phase Lock Loop IC, and microphone can send the operating frequency identical with receiver at once after the made of hardware circuits which process.
(3) [microphone keyboard lockout] function realizes principle:
Enter " keyboard lockout " function of receiver by " keyboard " and display screen menu, behind the selected good microphone, send keyboard lockout by the RF data transmission circuit and instruct microphone, microphone receives after the data, single-chip microprocessor MCU is at once the keyboard lockout of microphone, all keyboards of microphone lost efficacy, and after the operator sent unlock command by receiver, the microphone keyboard could continue operation.Be effectively to control microphone user faulty operation button to cause the inoperable means of system.
(4) [microphone pickup sensitivity adjustment] function realizes principle:
Enter " sensitivity adjustment " function of receiver by " keyboard " and display screen menu, press high and low shift in the microphone use occasion branch, receiver system sent the sensitivity adjustment instruction by the RF data transmission module after sensitivity was selected to determine, after microphone receives data processing, regulate by sensitivity adjusting circuit.This operation can so that microphone such as: the individual sings, the different occasions of speech, chorus, and the operator can control the microphone state in real time.
(5) [control of microphone RF radio-frequency power] function realizes principle:
Enter " sensitivity adjustment " function of receiver by " keyboard " and display screen menu, press high and low shift in the microphone use occasion branch then, receiver system sent radio-frequency power adjustment instruction by the RF data transmission module after power selection was determined, after microphone receives data processing, enter corresponding power modes of operation.
(6) [demonstration of microphone state] function realizes principle:
Microphone sends one group of state information (battery electric quantity, signal receiving strength, sensitivity, mode of operation etc.) from the trend receiver at set intervals, receiver after receiving data is preserved data, handles the back through MCU simultaneously and shows correlation behavior information by display screen.
System of the present utility model is except can above-mentioned enforcement function, and in like manner, other work state information of microphone can be realized control in real time by receiver.
Certainly, the invention is except above-mentioned execution mode, and other equivalent technical solutions also should be within protection range of the present utility model.
Claims (9)
1, wireless microphone system, comprise wireless microphone receiver and wireless microphone microphone, it is characterized in that: wireless microphone receiver comprises the receiver main circuit, connects wireless speech reception processing and the output circuit and the receiver RF wireless data transmission module of main circuit; The wireless microphone microphone comprises the microphone main circuit, the pickup and the Audio Processing that connect main circuit, radiating circuit and microphone RF wireless data transmission module, the wireless speech of receiver receives the pickup and the Audio Processing of processing and output circuit and microphone, the operating frequency of radiating circuit is controlled by main circuit separately respectively, both realize that under the identical situation of operating frequency wireless data transmission connects, and the control command between receiver RF wireless data transmission module and microphone RF wireless data transmission module realization receiver and the microphone and/or the wireless data transmission of state information are connected.
2, wireless microphone system according to claim 1, it is characterized in that: the receiver main circuit comprises single-chip microcomputer, connects memory, operation keyboard and the information display device of single-chip microcomputer, and single-chip microcomputer has the connectivity port to connect wireless speech reception processing and output circuit and receiver RF wireless data transmission module; The microphone main circuit comprises single-chip microcomputer and the memory that is connected single-chip microcomputer, and this single-chip microcomputer has the connectivity port to connect pickup and Audio Processing, radiating circuit and microphone RF wireless data transmission module.
3, according to claim 1 or 2 described wireless microphone systems, it is characterized in that: describedly be used to transmit control command between receiver and the microphone and/or the RF wireless data transmission module of state information is made up of antenna, RF wireless data communication module and coding and decoding circuit, RF wireless data communication module connects the connectivity port of main circuit by the coding and decoding circuit.
4, wireless microphone system according to claim 2 is characterized in that: described receiver main circuit also comprises data acquisition module, and the output of this data acquisition module connects single-chip microcomputer, and input connects the audio sample circuit.
5, wireless microphone system according to claim 2 is characterized in that: described receiver main circuit also comprises data acquisition module, and the output of this data acquisition module connects single-chip microcomputer, input connection status Acquisition Circuit.
6, wireless microphone system according to claim 2 is characterized in that: described microphone main circuit also comprises data acquisition module, and the output of this data acquisition module connects single-chip microcomputer, and input connects the battery voltage sampling circuit.
7, wireless microphone system according to claim 2 is characterized in that: described microphone main circuit also comprises data acquisition module, and the output of this data acquisition module connects single-chip microcomputer, and input connects the battery voltage sampling circuit.
8, wireless microphone system according to claim 2 is characterized in that: described microphone main circuit also comprises operation keyboard and the display unit that is connected with single-chip microcomputer.
9, wireless microphone system according to claim 2 is characterized in that: the single-chip microcomputer of described microphone main circuit has the connectivity port to connect pickup and Audio Processing, radiating circuit by sensitivity control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720047690 CN200994132Y (en) | 2007-01-16 | 2007-01-16 | Wireless microphone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720047690 CN200994132Y (en) | 2007-01-16 | 2007-01-16 | Wireless microphone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200994132Y true CN200994132Y (en) | 2007-12-19 |
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ID=38947203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720047690 Expired - Fee Related CN200994132Y (en) | 2007-01-16 | 2007-01-16 | Wireless microphone system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200994132Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506997A (en) * | 2014-11-29 | 2015-04-08 | 惠州市天音乐器有限公司 | Pick-up device special for music ensemble |
| CN106331957A (en) * | 2016-08-19 | 2017-01-11 | 黄广明 | Wirelessly-controllable audio processing device |
| CN114025269A (en) * | 2021-11-05 | 2022-02-08 | 昆腾微电子股份有限公司 | Wireless microphone and wireless receiver |
-
2007
- 2007-01-16 CN CN 200720047690 patent/CN200994132Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506997A (en) * | 2014-11-29 | 2015-04-08 | 惠州市天音乐器有限公司 | Pick-up device special for music ensemble |
| CN106331957A (en) * | 2016-08-19 | 2017-01-11 | 黄广明 | Wirelessly-controllable audio processing device |
| CN114025269A (en) * | 2021-11-05 | 2022-02-08 | 昆腾微电子股份有限公司 | Wireless microphone and wireless receiver |
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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: 20071219 Termination date: 20130116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |