JP2013055506A - Wireless frequency switching and disturbance preventing full-duplex audio broadcast device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless frequency switching and disturbance preventing full-duplex audio broadcast device.SOLUTION: A wireless frequency switching and disturbance preventing full-duplex audio broadcast device has an emission mechanism and at least one reception mechanism. The emission mechanism transmits a data packet including sound in a predetermined cycle or not including sound. The reception mechanism is coupled to the emission mechanism, and then receives the data packet having sound or not having sound, and is maintained to a standby state between the emission mechanism and the reception mechanism. Thereby, a technical feature of a full-duplex (bidirectional) sound can be achieved, and better mobility can be given to the reception mechanism. The reception mechanism can be always carried as an emergency pager, can perform emergency call to the emission mechanism, can prevent disturbance caused by an environment, and can achieve objects such as power saving, short-distance emergency contact, monitoring, and seeking to be rescued.

Description

The present invention relates to a radio frequency exchange disturbance prevention full-duplex audio broadcasting device, in particular, has the technical characteristics of full-duplex (bi-directional) audio, good mobility of the receiving mechanism, can always be carried as an emergency pager, In an emergency, it can call an emission mechanism, prevent environmental disturbances, and also realize the purpose of saving power and short-distance emergency contact, monitoring and helping.

Commercially available microphones, speakers, and broadcasters are one-way or wired connection systems, and even with microphones (broadcasters) that have wireless functions, disturbances may occur depending on the environment, and the user may replace the microphone or change the position. In addition to being inconvenient for the user, the microphone (broadcaster) has to be replaced with a new battery, which is economically unsuitable.

    The present inventor proposes the present invention in which the above-mentioned drawbacks are solved by careful research, and the above-mentioned drawbacks can be effectively eliminated by utilizing science, and the design is rational.

The main object of the present invention is to realize the technical characteristics of full-duplex (two-way) audio, the mobility of the receiving mechanism is good, it can always be carried as an emergency pager, and in an emergency, the emission mechanism can be called Provided is a radio frequency exchange disturbance-preventing full-duplex audio broadcasting apparatus that achieves the purpose of seeking short-distance emergency contact, monitoring, and help while being environmental disturbance and power saving.

The present invention is a radio frequency exchange disturbance preventing full-duplex audio broadcasting apparatus for achieving the above object,
It has a voice sampling / reconstruction unit, a local area network unit connected to the voice sampling / reconstruction unit, and an operation unit connected to the local area network unit, and transmits data packets that contain voice or no voice in a given cycle. An emission mechanism to
Has an audio sampling / reconstruction unit, a local area network unit connected to the audio sampling / reconstruction unit, and an operation unit connected to the local area network unit, and after being connected to the emission mechanism, has audio or no audio At least one receiving mechanism for receiving a data packet and maintaining a standby state between the emission mechanism and the receiving mechanism is included.

In one embodiment of the present invention, the sound sampling / reconstruction unit of the emission mechanism and the local area network unit are connected by a synchronous serial interface (SPI).

In an embodiment of the present invention, the local area network unit of the emission mechanism includes at least a ZigBee module, a power amplifier connected to the ZigBee module, and a radio frequency antenna connected to the power amplifier.

In one embodiment of the present invention, the ZigBee module includes a synchronous serial interface buffer and a transfer buffer, a transfer packet audio device, and a flash memory.

In one embodiment of the present invention, the operation unit of the emission mechanism includes an indicator lamp, a transmission / mute button, a voice indicator lamp, a power source, a microphone contact, and an earphone contact.

In one embodiment of the present invention, the audio sampling / reconstruction unit of the receiving mechanism and the local area network unit are connected by a synchronous serial interface (SPI).

In one embodiment of the present invention, the local area network unit of the receiving mechanism includes at least a ZigBee module and a radio frequency antenna connected to the ZigBee module.

In one embodiment of the present invention, the ZigBee module includes a synchronous serial interface buffer, a reception buffer, a reception packet audio device, and a flash memory.

In an embodiment of the present invention, the operation unit of the receiving mechanism includes an indicator lamp, a function button, a voice indicator lamp, a power source, a microphone contact, an earphone contact, and a registration button.

In one embodiment of the present invention, the operation flow of the emission mechanism is activated, resets to an idle state, determines whether to receive an upload packet, and if not, reads the data in the flash memory and the quality replay code , Package the data, transfer the download packet, and then enter the idle state again, and when receiving the upload packet, decode the packet and perform voice reconstruction by the voice data reception register, If it is connected, the warning parameter is detected. If not, the radio frequency parameter is set, the warning parameter is detected, and the warning parameter is detected. As well as detecting registration and acceptance parameters When the meter is not detected, the registration and reception parameters are detected directly. When registration and reception are not required, the parameter reading step is entered and the quality notification code is set while reading the flash memory data. In addition, when the data is packaged and the download packet is transferred, and then enters the idle state again, or when performing registration or acceptance, after setting the registration parameters, the register data is written to the flash memory, and then Enter the parameter reading step, read the data in the flash memory, set the quality replay code, then package the data and transfer the download packet, then enter the idle state again, and also perform the audio sampling Directly, sample and transfer data Data transfer register to detect whether the transfer register is full, and if it is full, enter the parameter reading step, read the flash memory data, set the quality report code, package the data and download the packet Is transferred to the idle state, and then again enters the idle state, and if it is not full, audio sampling is performed again.

In one embodiment of the present invention, the operation flow of the receiving mechanism is activated and reset, then selects whether to register, and when registration is not required, if the registration button is pressed for 1 second or longer, a download packet is transmitted. Receive it, transfer it to the registration packet, detect whether the registration was successful, if not successful, press the registration button again, if successful, enter the idle state, determine whether to give a warning, If a warning is required, it will detect if the transfer register is full after driving the warning, and if no warning is required, it will directly detect if the transfer register is full and become full. If not, enter the parameter reading step, package the data and transfer the upload packet. If it is not full, determine whether to receive the download packet and download it. When the download packet is not received, it enters the idle state, and when the download packet is received, it is determined whether the frequency hopping is required. If reconstruction is performed and the idle state is entered and frequency hopping is not required, speech reconstruction is performed directly by the speech data reception register, and if the idle state is entered and no download packet is received, the frequency hopping table is set. Select whether to exchange, if the exchange is not necessary, perform the frequency conversion, if the exchange is necessary, determine whether to receive the download packet, and after starting and resetting, register When performing, detect whether to receive the download packet and receive it If the packet is decoded, the voice data reception register performs voice reconstruction, enters the idle state, does not receive the download packet, presses the function button to accept, determines whether it is pressed, if not pressed, Requests to press again, if it is pressed, uploads the received packet and receives the download packet. At this time, if the download packet is received, the packet is decoded and then the voice is reconstructed by the voice data reception register. In addition, when an idle state is entered and no download packet is received, the registration button is pressed again.

    Hereinafter, the features and technical contents of the present invention will be described in detail with reference to the drawings. However, the drawings and the like are for reference and explanation, and the present invention is not limited thereby.

External appearance conceptual diagram of the present invention Basic structure conceptual diagram of the present invention Block conceptual diagram of the present invention Block conceptual diagram of the operation unit of the present invention Flow diagram of the emission mechanism of the present invention Flow conceptual diagram of the receiving mechanism of the present invention Timing plan conceptual diagram of the present invention Voice packet actual measurement conceptual diagram of the present invention Frequency exchange actual measurement concept diagram of the present invention Audio signal transmission actual measurement result conceptual diagram of the present invention

1 to 10 are an external conceptual diagram of the present invention, a basic structural conceptual diagram of the present invention, a block conceptual diagram of the present invention, a conceptual diagram of an operation unit block of the present invention, and a flow conceptual diagram of an emission mechanism of the present invention. , Conceptual diagram of the flow of the receiving mechanism of the present invention, conceptual diagram of timing planning of the present invention, conceptual diagram of actual measurement of voice packet of the present invention, conceptual diagram of actual measurement of frequency exchange of the present invention, and conceptual diagram of actual measurement result of voice signal transmission of the present invention It is. As shown in the figure, the present invention is a radio frequency exchange disturbance preventing full-duplex audio broadcasting apparatus, and includes at least one emission mechanism 1 and at least one reception mechanism 2.

The emission mechanism 1 includes an audio sampling / reconstruction unit 11, a local area network unit 12 connected to the audio sampling / reconstruction unit 11, and an operation unit 13 connected to the local area network unit 12. The voice sampling / reconstruction unit 1 and the local area network unit 12 are connected by a synchronous serial interface (SPI), and the local area network unit 12 At least a ZigBee module 121, a power amplifier 122 connected to the ZigBee module 121, and a radio frequency antenna 123 connected to the power amplifier 122 are included. The ZigBee module 121 includes a synchronous serial Interface buffer 1211, transfer buffer 1212, transfer packet audio device 1213, and flash memory 1214. The synchronous serial interface buffer 1211, transfer buffer 1212, and transfer packet audio device 1213 function as an audio data buffer and a packet. The operation unit 13 includes an indicator lamp 131, a transmission / mute button 132, a voice indicator lamp 133, a power supply unit 134, a microphone contact 135, and an earphone contact 136.

The reception mechanism 2 includes an audio sampling / reconstruction unit 21, a local area network unit 22 connected to the audio sampling / reconstruction unit 21, and an operation unit 23 connected to the local area network unit 22. The unit 21 and the local area network unit 22 are connected by a synchronous serial interface (SPI), and the local area network unit 22 includes at least a ZigBee module 221 and a radio frequency antenna 222 connected to the ZigBee module 221. The ZigBee module 221 includes a synchronous serial interface buffer 2211, a reception buffer 2212, a reception packet audio device 2213, and a flash memory 2214. The interface buffer 2211, the reception buffer 2212, and the reception packet audio unit 2213 function as an audio data buffer and a packet. The operation unit 23 includes an instruction lamp 231, a function button 232, an audio instruction lamp 233, a power supply unit 234, A microphone contact 235, an earphone contact 236, and a registration button 237 are included. The ZigBee module 221 of the local area network unit 22, the radio frequency antenna 222, the ZigBee module 121 of the local area network unit 12 installed in the emission mechanism 1, and the wireless The frequency antenna 123 is connected to receive a data packet having voice or not having voice, and is kept in a standby state between the emission mechanism 1 and the reception mechanism 2.

The operation flow of the emission mechanism 1 starts and resets (301), enters the idle (302) state, determines whether to receive an upload packet (303), otherwise reads the data in the flash memory. (304) Set quality circulation code (305), package data (306), transfer download packet (307), then enter idle (302) state again, and receive upload packet (303) ), The packet is decoded (308), and voice reconstruction (310) is performed by the voice data reception register (309). At this time, it is detected whether it is a connection (311). If it is detected (312) and not a connection, a radio frequency parameter is set (31 ) After that, the warning parameter is detected (312). When the warning parameter is detected, the lighting or voice warning is driven (314), and the registration or reception parameter is detected (315), and the presence of the warning parameter is detected. If registration or reception parameters are detected directly (315), and registration or reception is not required, the parameter reading (316) step is entered, the flash memory data is read (304), and a quality report code is set. (305), package the data (306), transfer the download packet (307), then enter the idle (302) state again, and set registration parameters when registering or accepting. (317) After that, the register data is written to the flash memory (318), and then the parameter is read ( 16) Enter the step, read the data in the flash memory (304), set the quality circular code (305), then package the data (306) and transfer the download packet (307), then again, When entering the idle (302) state and performing audio sampling (319), after direct sampling, the data is transmitted to the transfer data register (320), and whether the transfer register is full (321) is detected. If it is full, enter the parameter reading (316) step, read the data in the flash memory (304), set the quality report code (305), package the data (306), download Forward the packet (307) and then enter the idle (302) state again, If it is not full, audio sampling (319) is performed again.

The operation flow of the receiving mechanism 2 starts and resets (401), then selects whether to register (402), and when registration is not required, press the registration button (403) and press it for more than 1 second ( 404), the download packet is received (405), and after the download packet is received, it is transferred to the registration packet (406), and whether the registration is successful (407) is detected. When the registration button is pressed (403), if it is successful, it enters the idle (408) state and it is determined whether a warning (409) is to be performed. If a warning is required, after the warning is driven (410), the transfer register If it is detected that the transfer register is full (411) and no warning is required, it is directly detected whether the transfer register is full (411). Step (412) is entered, data is packaged (413), upload packet is transferred (414), and if not full, download packet is received (415) and download packet is not received If it is in the idle (408) state and download packets are received, it is determined whether the frequency hopping is required (416). If frequency hopping is required, the channel is switched (417), and then the audio data reception register (418) performs voice reconstruction (419), and enters the idle (420) state, and if frequency hopping is not required, performs voice reconstruction (419) directly by the voice data reception register (418). , Also enter idle (420) state, download packet If not received, select whether or not to exchange the frequency hopping table (421). If no exchange is required, perform the frequency conversion (422). 405) is determined, and after starting and resetting (401), if registration is performed, it is detected whether a download packet is received (423), and if received, the packet is decoded (424) and then voice data is received. If the register (418) performs voice reconstruction (419) and enters the idle (420) state and does not receive a download packet, the function button is pressed to accept (425), and whether it has been pushed (426) is determined. If it is not pushed, it will be pushed again. If it is pushed, the reception packet is uploaded (427). The download packet is received (428). At this time, when the download packet is received, the packet is decrypted (424), and then the voice reconstruction (419) is performed by the voice data reception register (418). If you enter the state and do not receive the download packet, press the registration button 40 again, and if you want to perform audio sampling (429), after sampling, send to the transfer data register (430), and also packaged the data After (413), the upload packet is transferred (414). In the flowchart, A and B are connection points, respectively.

According to the present invention, the emission mechanism 1 and the reception mechanism 2 can exhibit a registration function, a reception function, a management function, and an automatic frequency exchange function. Each function is as follows.
(1) When executing the registration function, the receiving mechanism 2 can receive the sound of the emission machine after registering with the emission mechanism 1, and the registration process is as follows.
1. Press the registration button 237 of the receiving mechanism 2 for 1 second or longer.
2. The indicator lamp 131 of the emission mechanism 1 blinks.
3. At the same time, the indicator lamp 231 of the receiving mechanism 2 blinks.
4. Press the function button 232 of the receiving mechanism 2 to confirm.
5. If successful, the indicator lamps 131 and 231 of both the emission mechanism 1 and the reception mechanism 2 are turned off.

If the above steps are not completed within 5 seconds, the emission mechanism 1 and the reception mechanism 2 return to the original state, and the indicator lamps 131 and 231 of both the emission mechanism 1 and the reception mechanism 2 are turned off. Also, after registration, there is no need to re-register other than exchanging the recipient.

(2) When the reception function is executed, the reception mechanism 2 can start receiving and receive the voice after reception. The reception mechanism adopts the principle of receiving reception after being called, and the reception process is as follows. It is as follows.
1. After the emission mechanism 1 is activated, the registered reception mechanism 2 is called. At this time, when the activated reception mechanism 2 responds, the reception is automatically completed, and the signal is interrupted to stop the indicator lamp 231. Goes off.
2. When the receiving mechanism 2 is activated after being called, the indicator lamp 231 turns on the signal interruption lamp, and the indicator lamp 231 turns off after the function button is pressed to accept.

(3) When executing the management function, each emission mechanism 1 is connected to at most 255 reception mechanisms 2 and if it is registered in duplicate, the original number is assigned, and when the registration is full, If registered, select any number from the unaccepted list and use it redundantly. When all receivers are accepted, a common temporary number is assigned, and the provisional number receiving mechanism 2 is required to re-register when it is activated again, and when a number is assigned to another receiver before the registered receiving mechanism 2 receives the reception, the unregistered lamp is lit in the indicator lamp 231. It is necessary to register again.

(4) When executing the automatic frequency exchange function, the emission mechanism 1 asks in turn, designates the received reception mechanism 2 one by one to circulate the reception quality, and if the overall quality is poor, When the emission mechanism 1 issues a frequency exchange notice, it switches to the next channel according to the frequency exchange table, waits about 110 ms after the frequency exchange, and immediately after the reception mechanism 2 receives the frequency exchange notice, If the receiving mechanism 2 does not receive a packet twice in succession, the frequency is switched back and forth between the current channel and the next channel, and the scanning function is activated when 110 ms is exceeded. Each channel is scanned quickly and continuously, and 6.4
Switching the frequency every ms until receiving the packet of Emission Mechanism 1, and switching the frequency at this speed, 102.4 ms is required to make 16 channels once, so if you select the frequency switching, at least, Wait 110 ms. When each emission mechanism 1 is used for the first time after shipping, a frequency exchange table is automatically generated based on a true random number by an out-of-order arrangement. There are different frequencies exchange form, by this, the frequency exchange table for each emission mechanism 1, the probability of a match, (1/16!) = 4.8 × 10 ^{over 14} have only, emission mechanism 1, the frequency After the exchange table is generated, it is automatically burned to the flash memory 1214, and then converted to the emission mechanism 1 from the receiving mechanism 2 without conversion, except when forcibly burning by external force, and when the present invention is applied. , The emission mechanism 1 appends the frequency exchange table to the registration reply packet and forwards it to the reception mechanism 2. Therefore, when there is a disturbance, the emission mechanism 1 quickly exchanges the synchronous frequency, and the reception mechanism 2 However, when registering, in order to obtain the frequency exchange table, the table is changed only when registering again thereafter.

In the present invention, when timing is planned (as shown in FIG. 7), the emission mechanism 1 transmits one packet every 5 ms, each packet is 57 bytes long, and the transfer time is (57 bytes) X. (8 bits / sec) / 250 kbps = 1824 us. Therefore, when each receiving mechanism 2 finishes receiving the packet, the packet can be processed with a long margin of 3.176 ms.

Since the emission mechanism transmits one packet every 4860 ms on average, it may be a download symbol with a length of 17 bytes or a download voice with a length of 57 bytes. The reception mechanism 2 specified in the quality report is a packet to which the registered reply information of bytes is appended, and immediately after receiving the download packet, transmits the quality report packet.

    The receiving mechanism 2 that applies for registration or acceptance transfers the packet in the gap at the end of each period, and the registration reply packet is relatively long, and the remaining gap is registered because of the time occupied by the quality reply packet. It is disadvantageous for the transfer of application (or reception) packets, so if the download packet is a registered reply packet without specifying a quality reply in the registered reply packet among the planned packet types, registration or The receiver applying for acceptance will send the packet immediately after the packet is finished, otherwise it will have about 960 ms after the download packet is finished and send the packet.

    The packet format of the present invention is divided into a download packet format and an upload packet format. The download packet format is as shown in the table below.

Among them:
FCF = 0x80;
DSN: Packet serial number;
PANID: Network number;
Address: Serial number of the specified device;
RegNo ： Registration number for the designated circular or assignment;
Channel
Seq .: Frequency exchange table;
Voice
Data: voice data;
Command: The command contents of the download packet are as shown in the table below.

The upload packet format is as shown in the table below.

Among them,
FCF = 0x81
RegNo: Registration number
Address: Device serial number
Command: The command content of the upload packet is as shown in Table 4 below.

Based on the IEEE 802.15.4 Data packet format, the planned voice packet format as a whole has a packet length of 6 bytes physical layer header (PHY Header), 2 bytes frame control field (FCF), 1 bytes packet serial number (DSN), 2 bytes destination PANID, 2
bytes destination address, n bytes of voice data, 2
Includes bytes error detection code and 2 bytes system command space reserved in advance. Among them, since the source of the packet is the PAN Coordinator, the Source PANID and Source Address fields are omitted, and the Destination Address field is filled with 0xFFFF if it is a broadcast packet.

    In addition, the present invention is verified by actual measurement by the following method.

(1) Actual measurement of voice packets:
FIG. 8 is a packet before and after the transmission / mute button 132 is pressed in the emission mechanism 1, and the MSDU packet length (excluding 6 bytes of iePHY Header) is changed from 11 bytes to 40 bytes.
Increase bytes to 51 bytes.

    FIG. 9 shows an actual measurement of the frequency switching function. Since only one frequency can be observed in one sniffer, the frequency switching status cannot be recorded, and the test method is two receiving mechanisms 2 of 0x0605 and 0x0001. , Then turn off 0x0605 and then turn off 0x0001, as can be seen from Figure 9, when 0x0605 is turned off, from 0x0605 does not respond to received quality, but 0x0001 responds to quality 0x6C, so the system If the sniffer can detect that there is a packet without frequency exchange, and if 0x0001 is also turned off, the emission mechanism 1 will not be able to receive any notifications, so soon the emission mechanism 1 Sending an exchange declaration (Command = 0x90), the frequency is converted, Sniffer can no longer detect the packet, and after 1755.198 ms, the packet appears again, which is Since 1 is constantly changing frequency and waiting for about 110 ms for one frequency conversion, in the case of 15 frequencies, it becomes about 1650 ms, and furthermore, frequency exchange notification for each frequency is sent. Since it is necessary to wait about 5 ms after issuing, the interval is about 1725 ms, which is not much different from the actual measurement.

(2) The results of the actual audio signal transmission measurement are as shown in FIG. 10. In the figure, a chord wave having a frequency of 1 kHz and an amplitude of 0.5 V was used as a test signal, and the result was written according to the above plan. The firmware can reliably and accurately transfer audio, and the delay time is kept within the expected 10 ms.

The radio frequency exchange disturbance prevention full-duplex audio broadcasting apparatus according to the present invention has automatic frequency exchange and disturbance prevention characteristics in its technology, and can greatly improve disturbance due to the environment of the existing audio broadcasting system. The full-duplex voice communication function is different from the conventional one-way expansion and broadcasting function. In addition to the emission mechanism 1 being used for broadcasting, the receiving mechanism 2 can also be a pager. Can be used for emergency calls, monitoring and assistance for short-distance emergency calls, according to the present technology, such as consumer electronics, such as human call system and loudspeaker system, learning broadcast, radio guide call, monitoring system, It can be used for wireless short-distance audio and surveillance / emergency purposes, and then used for army team field patrol monitoring, pre-enemy radio command communication system, etc. It can also be applied to consumer applications.

As described above, the radio frequency exchange disturbance-preventing full-duplex audio broadcasting apparatus according to the present invention can effectively eliminate the conventional drawbacks, can realize the technical characteristics of full-duplex (two-way) audio, and has a receiving mechanism. Good mobility, can always be carried as an emergency pager, can call up the emission mechanism in an emergency, can prevent environmental disturbances, then save power and short distance emergency contact, monitoring and helping Therefore, the present invention is more progressive and more practical, and filed a utility model registration request in accordance with the law.

The above are merely preferred embodiments of the present invention, and the present invention is not limited thereby, and equivalent modifications made based on the scope of the claims and the description of the invention related to the present invention. All modifications and variations are intended to be included within the scope of the claims.

1 Emission mechanism 11 Audio sampling / reconstruction unit 12 Local area network unit 121 ZigBee module 1211 Synchronous serial interface buffer 1212 Transfer buffer unit 1213 Transfer packet audio unit 1214 Flash memory 122 Power amplifier 123 Radio frequency antenna 13 Operation unit 131 Indicator lamp 132 Transmission / Mute button 133 Audio indicator lamp 134 Power supply unit 135 Microphone contact 136 Earphone contact 2 Reception mechanism 21 Audio sampling / reconstruction unit 22 Local area network unit 221 ZigBee module 2211 Buffer 2212 Reception buffer 2213 Reception packet audio device 2214 Flash memory 222 Radio frequency antenna 23 Operation unit 231 Indicator light 232 Function button 23 Voice indicator lamp 234 Power supply unit 235 Microphone contact 236 Earphone contact 237 Registration button 301 Activation reset 302 Idle 303 Receive upload packet 304 Read data from flash memory 305 Set quality report code 306 Package data 307 Transfer download packet 308 Decode packet 309 Audio data reception register 310 Audio reconstruction 311 Connection is 312 Detect warning parameter 313 Set radio frequency parameter 314 Drive lighting and audio warning 315 Register and detect reception parameter 316 Read parameter 317 Setting the registration parameters 318 Writing the register data to the flash memory 319 Audio sampling 320 Transfer data register Or 321 transfer register is full?
401 Start and reset 402 Register?
403 Press the registration button 404 Press for 1 second or longer 405 Receive the download packet 406 Transfer the registration packet 407 Was registration successful?
408 Idle 409 Warning 410 Warning 411 Drive 411 Is the transfer register full?
412 Read parameter 413 Package data 414 Transfer upload packet 415 Receive download packet 416 Is frequency hopping?
417 Channel switching 418 Audio data reception register 419 Audio reconstruction 420 Idle 421 Do you want to replace the frequency hopping table?
422 Frequency conversion 423 Receive download packet 424 Decrypt packet 425 Press function button to accept 426 Are you pressing?
427 Upload acceptance packet 428 Receive download packet 429 Audio sampling 430 Transfer data register

Claims (9)

It has a voice sampling / reconstruction unit, a local area network unit connected to the voice sampling / reconstruction unit, and an operation unit connected to the local area network unit, and transmits data packets that contain voice or no voice in a given cycle. An emission mechanism to
Has an audio sampling / reconstruction unit, a local area network unit connected to the audio sampling / reconstruction unit, and an operation unit connected to the local area network unit, and after being connected to the emission mechanism, has audio or no audio A radio frequency exchange disturbance-preventing full-duplex audio broadcasting apparatus, comprising: at least one receiving mechanism that receives a data packet and maintains a standby state between the emission mechanism and the receiving mechanism. 2. The radio frequency exchange disturbance preventing full-duplex audio broadcasting apparatus according to claim 1, wherein the audio sampling / reconstruction unit of the emission mechanism and the local area network unit are connected by a synchronous serial interface (SPI). . The radio frequency exchange according to claim 1, wherein the local area network unit of the emission mechanism includes at least a ZigBee module, a power amplifier connected to the ZigBee module, and a radio frequency antenna connected to the power amplifier. Disturbance prevention full duplex audio broadcasting equipment. 4. The radio frequency exchange disturbance preventing full-duplex audio broadcasting apparatus according to claim 3, wherein the ZigBee module includes a synchronous serial interface buffer, a transfer buffer, a transfer packet audio device, and a flash memory. The radio frequency exchange disturbance-preventing full-duplex audio broadcasting apparatus according to claim 1, wherein the audio sampling / reconstruction unit of the receiving mechanism and the local area network unit are connected by a synchronous serial interface (SPI). . The radio frequency exchange disturbance preventing full-duplex audio broadcasting apparatus according to claim 1, wherein the local area network unit of the receiving mechanism includes at least a ZigBee module and a radio frequency antenna connected to the ZigBee module. 7. The radio frequency exchange disturbance preventing full-duplex audio broadcasting apparatus according to claim 6, wherein the ZigBee module includes a synchronous serial interface buffer, a reception buffer, a reception packet audio device, and a flash memory. According to the operation flow of the above emission mechanism, it is activated, reset to the idle state, determines whether to receive the upload packet, if not, reads the data of the flash memory, sets the quality report code, and packages the data Then, when the download packet is transferred, and after entering the idle state again and receiving the upload packet, the packet is decoded and voice reconstruction is performed by the voice data reception register. At this time, it is detected whether the connection is established. If the connection is a connection, the warning parameter is detected. If the connection is not a connection, the radio frequency parameter is set and then the warning parameter is detected. Detect reception parameters and warning parameters If not, the registration and reception parameters are detected directly. If registration and reception are not required, the parameter reading step is entered and the quality notification code is set while reading the flash memory data. Package, transfer the download packet, then enter the idle state, and when registering or accepting, set the registration parameters, write the register data to the flash memory, and then read the parameters While entering the step and reading the data in the flash memory, set the quality replay code, package the data and transfer the download packet, then enter the idle state again, and directly when audio sampling is performed After sampling, transfer data register , Then detect whether the transfer register is full, and if it is full, enter the parameter reading step, set the quality replay code while reading the data in the flash memory, 2. The radio frequency exchange disturbance prevention full duplex according to claim 1, wherein the download packet is packaged and the packet is further transferred, and then, when the idle state is entered and not full, voice sampling is performed again. Audio broadcasting device. According to the operation flow of the above reception mechanism, select whether to register after being activated and reset, and if registration is not required, press the registration button for more than 1 second to receive the download packet and go to the registration packet Transfer, detect if registration is successful, if not successful, press the registration button again, if successful, enter idle state, determine whether to warn, and if warning is required, After driving the warning, it detects if the transfer register is full. If no warning is required, it detects if the transfer register is full. If it is full, the parameter reading step Enter and package the data before transferring the upload packet. If it is not full, determine whether to receive the download packet and download packet. When receiving a download packet, determine whether it is frequency hopping, and if frequency hopping is required, perform audio reconstruction using the audio data reception register after channel switching. Also, when entering the idle state and frequency hopping is not required, perform voice reconstruction directly by the voice data reception register, and when entering the idle state and not receiving the download packet, exchange the frequency hopping table If you do not need exchange, perform frequency conversion, and if exchange is necessary, decide whether to receive download packet again, start up, reset, and register Detects whether a download packet has been received. After decoding, voice reconstruction is performed by the voice data reception register, and when entering the idle state and not receiving the download packet, press the function button to accept it, determine whether it has been pushed, Request to press again, if it is pressed, upload the reception packet and receive the download packet. At this time, if the download packet is received, after decoding the packet, voice reconstruction is performed by the voice data reception register 2. The radio frequency exchange disturbance preventing full-duplex audio broadcasting apparatus according to claim 1, wherein the registration button is pushed again when the idle state is entered and no download packet is received.