TWI426718B - Wireless frequency conversion anti - interference full - duplex voice broadcasting device - Google Patents

Description

Wireless frequency conversion anti-interference full-duplex voice broadcasting device

The invention relates to a wireless frequency-interference anti-interference full-duplex voice broadcasting device, in particular to a technical feature capable of achieving full-duplex (two-way) voice, and the receiving mechanism has good mobility and can be carried as an emergency pager at any time. Emergency call launching mechanism to achieve the purpose of avoiding environmental interference, saving electricity, facilitating short-range emergency contact, monitoring and seeking help.

According to the current, microphones, amplifiers and broadcasters on the market are mostly unidirectional and wired. Even wireless microphones (broadcasters) are often disturbed to produce noise. Users often need to change microphones, or often Changing the position, which causes inconvenience to the user, does not actually solve the problem, and the microphone (broadcaster) also has to change the battery frequently, which causes a lot of economic cost.

The main purpose of the invention is to achieve the technical characteristics of full-duplex (two-way) voice, and the receiving mechanism has good mobility, and can be used as an emergency caller and an emergency call transmitting mechanism at any time to avoid interference caused by the environment. , power saving, convenient short-range emergency contact, monitoring and help.

For the purpose of the present invention, a wireless frequency-interference anti-interference full-duplex voice broadcast apparatus includes: a transmitting mechanism including a voice sampling/reconstruction unit and a regional network unit connected to the voice sampling/reconstruction unit And an operation unit connected to the regional network unit, which can periodically send a data seal with or without voice And the at least one receiving mechanism includes a voice sampling/reconstruction unit, a regional network unit connected to the voice sampling/reconstruction unit, and an operation unit connected to the regional network unit, and is connected to the transmitting mechanism. Receiving a data packet with or without voice, maintaining the standby state between the transmitting mechanism and the receiving mechanism.

In an embodiment of the invention, the voice sampling/reconstruction unit and the regional network unit of the transmitting mechanism are interconnected by a synchronous serial interface (SPI).

In an embodiment of the invention, the regional network unit of the transmitting mechanism has at least one ZigBee module, a power amplifier connected to the ZigBee module, and a radio frequency antenna connected to the power amplifier.

In an embodiment of the present invention, the ZigBee module includes a synchronous serial interface buffer, a transmission buffer, a transport packet voice device, and a flash memory.

In an embodiment of the invention, the operating unit of the transmitting mechanism includes an indicator light, an utterance/mute button, a voice indicator, a power supply unit, a microphone contact, and a headphone contact.

In an embodiment of the invention, the voice sampling/reconstruction unit and the regional network unit of the receiving mechanism are interconnected by a synchronous serial interface (SPI).

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

In an embodiment of the present invention, the ZigBee module includes a synchronous serial interface buffer, a receiving buffer, a receiving packet voice device, and a flash memory.

In an embodiment of the invention, the operating unit of the receiving mechanism includes an indicator light, a function key, a voice indicator, a power supply unit, a microphone contact, a headphone contact, and a registration key.

In an embodiment of the present invention, the operation process of the transmitting mechanism is: power-on reset to make it enter an idle state, and determine whether to receive the uploading packet, if not, read the flash memory data and set the quality return code, And encapsulating the data to transmit and download the packet, and then entering the idle state. If there is a receiving and uploading packet, the packet is unpacked and the voice is re-established via the voice data receiving register, and then the connection is checked, and if there is a connection, Check the warning parameters. If there is no connection, check the warning parameters after setting the radio frequency parameters. When the warning parameters are checked, the lights and audible alarms are activated, and the registration and registration parameters are checked. When there is no check, there is a warning. When the parameter is used, the registration and registration parameters are directly checked. If there is no need to register and report, the parameter reading step is performed and the flash memory data is read and the quality return code is set, and the data is packaged for transmission and downloading, and then the idle state is entered. However, when you want to register and report, write the data of the scratchpad to the flash memory after setting the registration parameters. Then, the parameter reading step is performed and the flash memory data is read and the quality return code is set, and the data is packaged for transmission and downloading, and then enters the idle state; when the sound is sampled, the data is temporarily sampled and then transferred. And check if the transfer register is full. If it is full, read the parameter step and read the flash memory data and set the quality return code, and package the data to transfer the download packet, and then enter the idle state, if If it is not full, the sound is sampled again.

In an embodiment of the present invention, the operation process of the receiving mechanism is: selecting whether to register after power-on reset, pressing the registration button if registration is not required, and pressing for more than 1 second, and if not more than 1 second, pressing the registration again The button receives the download packet after being pressed for more than 1 second, and then transmits the registration packet after receiving the download packet, and checks whether the registration is successful. If it is not successful, press the registration button again, if successful, enter the idle state, and judge Whether warning is required, if warning is required, start the police After the display, check whether the transfer register is full. If there is no need to alert, check whether the transfer register is full. If it is full, read the parameter step, and then transfer the upload packet after the data is encapsulated. If it is not full, judge whether Receiving the download packet, if it does not receive the download packet, it enters the idle state, and if it receives the download packet, it determines whether the frequency hopping is performed. If the frequency hopping is required, after the channel is replaced, the voice data is received through the scratchpad for voice reconstruction, and the voice reconstruction is performed. And enter the idle state, if no frequency hopping is needed, the voice data is directly received through the voice data receiving register, and the voice reconstruction is performed and enters the idle state. When the download packet is not received, the frequency hopping table is selected for replacement. If the replacement is performed, the frequency of replacement is changed. If it needs to be replaced, it is judged whether to receive the download packet. When the device is to be registered after the power-on reset, the check is to receive the download packet, and if it is received, it is convenient to unpack the packet and then receive the voice data. The scratchpad performs voice reconstruction and enters an idle state. When no download packet is received, the function key is pressed to report. Determine whether to press, if not pressed, press again, if it has been pressed, upload the report packet, and receive the download packet. At this time, if the download packet is received, it is convenient to unpack the packet, and then the voice data is received through the voice data receiving register. And enter the idle state, if you do not receive the download packet, press the registration button again.

Please refer to FIG. 1 and FIG. 10 for a schematic view of the appearance of the present invention, a schematic diagram of the basic structure of the present invention, a block diagram of the present invention, a schematic diagram of the operating unit block of the present invention, and a launching mechanism of the present invention. The schematic diagram of the flow, the schematic diagram of the receiving mechanism of the present invention, the schematic diagram of the timing of the present invention, the schematic diagram of the voice packet of the present invention, the schematic diagram of the frequency measurement of the present invention, and the schematic diagram of the measured results of the voice signal transmission of the present invention. As shown: the present invention The invention relates to a wireless frequency-interference anti-interference full-duplex voice broadcasting device, which comprises at least one transmitting mechanism 1 and at least one receiving mechanism 2.

The transmitting mechanism 1 mentioned above comprises a voice sampling/reconstruction unit 11, a regional network unit 12 connected to the voice sampling/reconstruction unit 11, and an operation unit 13 connected to the area network unit 12, which can be issued periodically. a data packet with or without voice, wherein the voice sampling/reconstruction unit 1 and the regional network unit 12 are interconnected by a synchronous serial interface (SPI), and the regional network unit 12 has at least one 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. The ZigBee module 121 includes a synchronous serial interface buffer 1211, a transmission buffer 1212, and a transmission packet voice. The device 1213 and the flash memory 1214, and the synchronous serial interface buffer 1211, the transmission buffer 1212, and the transport packet voice device 1213 can be used as a voice data buffering and packet mechanism. The operating unit 13 includes an indicator 131. The utterance/mute button 132, the voice indicator 133, the power supply unit 134, the microphone contact 135, and the earphone contact 136.

The receiving mechanism 2 includes a voice sampling/reconstruction unit 21, a local area network unit 22 connected to the voice sampling/reconstruction unit 21, and an operation unit 23 connected to the area network unit 22, wherein the voice sampling/reconstruction The unit 21 and the area network unit 22 are connected to each other by a synchronous serial interface (SPI). The area network unit 22 has at least one ZigBee module 221 and a radio frequency antenna 222 connected to the ZigBee module 221. The ZigBee module The 221 includes a synchronous serial interface buffer 2211, a receiving buffer 2212, a receiving packet voice device 2213, and a flash memory 2214. The synchronous serial interface buffer 2211, the receiving buffer 2212, and the receiving packet voice device 2213 can be used as a voice data buffering and packet mechanism, and the operating unit 23 includes an indicator light 231, a function key 232, and a voice indicator. 233. The power supply unit 234, the microphone contact 235, the earphone contact 236, and the registration key 237 are used by the ZigBee module 221 of the regional network unit 22 and the radio frequency antenna 222 and the ZigBee mode of the regional network unit 12 provided by the transmitting mechanism 1. After the group 121 and the radio frequency antenna 123 cooperate with each other to complete the connection, the data packet with or without voice is received, and the transmitting mechanism 1 and the receiving mechanism 2 are maintained in a standby state.

The operation process of the transmitting mechanism 1 is: power-on reset 301 to enter the idle 302 state, and determine whether to receive the upload packet 303, if not, read the flash memory data 304 and set the quality return code 305, and package the data 306 is configured to transmit the download packet 307, and then enter the idle 302 state. If the upload packet 303 is received, the packet 308 is unpacked and the voice reconstruction 310 is performed via the voice data receiving register 309. At this time, the connection 311 is checked. If there is a connection, check the warning parameter 312. If there is no connection, check the warning parameter 312 after setting the wireless frequency parameter 313. When the warning parameter is detected, the light and audible warning 314 is activated, and the registration and registration are performed. When the parameter 315 is reported, when there is no warning parameter, the check registration and the report parameter 315 are directly performed. If the registration and reporting are not required, the step 316 is read and the flash memory data 304 is read and the quality report code 305 is set. And encapsulating the data 306 to transmit the download packet 307, and then entering the idle 302 state. However, when the registration and registration are to be performed, the registration parameter 317 is set. After the data of the scratchpad is written into the flash memory 318, the parameter 316 is read and the flash memory is read. The material 304 is set and the quality return code 305 is set, and the package data 306 is transmitted to download the package 307, and then enters the idle 302 state. When the sound sample 319 is performed, the data buffer 319 is directly sampled, and the data buffer 320 is transmitted, and the transfer temporary storage is checked. Whether the device is full 321 or not, if it is full, the parameter 316 is read and the flash memory data 304 is read and the quality report code 305 is set, and the package data 306 is sent to the download packet 307, and then enters the idle 302 state. If it is not full, the sound sampling 319 is performed again.

The operation flow of the receiving mechanism 2 is: whether to register 402 after power-on reset 401, press the registration key 403 if no registration is required, and press 404 for more than 1 second, and if not more than 1 second, press the registration key 403 again, wait for After pressing for more than 1 second, the download packet 405 is received, and after receiving the download packet, the registration packet 406 is transmitted, and the registration is successful 407. If it is not successful, the registration key 403 is re-pressed, and if successful, the idle 408 state is entered. And determine whether the warning 409 is required. If the warning is required, after the warning 410 is activated, check whether the transfer register is full 411. If the warning is not necessary, directly check whether the transfer register is full 411, and if it is full, read it. Step 412, and after the package data 413 is sent, the upload packet 414 is sent. If it is not full, it is determined whether to receive the download packet 415. If the download packet is not received, the idle packet 408 is entered. If the download packet is received, it is determined whether the frequency hopping is 416. After the channel 417 is changed, the voice data is received via the voice data receiving register 418, and the voice is reconstructed 419, and enters the idle state 420. If no frequency hopping is required, the voice data is directly connected. The receiving buffer 418 performs the voice reconstruction 419 and enters the idle 420 state. When the download packet is not received, the hopping table is selected to be replaced 421. If the replacement is not necessary, the frequency 422 is replaced. Whether to receive the download packet 405; and when the boot reset 4 If the registration is to be performed after 01, the check is to receive the download packet 423. If the receiving is convenient to unpack the packet 424, the voice reconstruction 418 is performed via the voice data receiving register 418, and the idle 420 state is entered, and when the receiving packet is not received, Press the function key to report to 425, and judge whether to press 426. If there is no compression, press again. If it has been pressed, upload the report packet 427 and receive the download packet 428. If the download packet is received, the packet 424 can be unpacked. Then, through the voice data receiving register 418, the voice reconstruction 419 is performed, and the idle state is entered. If the download packet is not received, the registration key 40 is pressed again. When the sound sampling 429 is performed, the data temporary register is transmitted after sampling. 430, and the package data 413 is transmitted and the upload packet 414 is transmitted, and in the flowchart, the A and B systems are respectively a connection point.

When used, the transmitting mechanism 1 and the receiving mechanism 2 can be used to perform a registration mechanism, a reporting mechanism, a control mechanism, and an automatic frequency changing mechanism, and the implementation of each mechanism is as follows:

(1) When the registration mechanism is implemented, the receiving organization 2 must register with the transmitting organization 1 to receive the voice of the transmitter, and the registration procedure is as follows:

1. Press the registration button 237 of the receiving mechanism 2 for more than 1 second.

2. At this time, the indicator light 131 of the transmitting mechanism 1 will flash rapidly.

3. At the same time, the indicator light 231 of the receiving mechanism 2 flashes rapidly.

4. At this time, press the function key 232 of the receiving mechanism 2 to confirm.

5. After the success, the indicator lights 131, 231 of the transmitting mechanism 1 and the receiving mechanism 2 are extinguished.

If the above steps are not completed within 5 seconds, the transmitting mechanism 1 and the receiving mechanism 2 are restored to the original state, and the indicator lights 131, 231 of the transmitting mechanism 1 and the receiving mechanism 2 are extinguished, and after registration, unless the receiving is to be replaced. Object, otherwise No need to register again.

(2) When the registration mechanism is implemented, the receiving organization 2 must complete the registration after the power is turned on to receive the sound, and the registration principle is to use the principle of first registering and then reporting, and the reporting procedure is as follows:

1. After the transmitting mechanism 1 is turned on, the registered receiving mechanism 2 is called one by one. At this time, the receiving device 2 that has been turned on immediately responds, and the automatic completion of the report, and the disconnection causes the indicator light 231 to be extinguished.

2. If the receiving mechanism 2 is turned on after the name is changed, the indicator light 231 will light the stop signal, and the indicator light 231 will be extinguished after the function key is pressed.

(3) When the control mechanism is implemented, each launching agency 1 can accommodate up to 255 receiving institutions 2, and when the registration is repeated, the original number is still used. When the registration is full, if there is a new registration application, then The selected number is not used in the unreported list. If all the receivers report, the shared temporary number is assigned. The receiving unit 2 that uses the temporary number must re-register after re-booting, and the registered receiving organization 2 before registration If the number is found to have been assigned to another receiver, the indicator 231 displays the unregistered number and must be re-registered.

(4) When the automatic frequency change mechanism is implemented, the transmitting mechanism 1 specifies the reported receiving unit 2 to report the receiving quality one by one in a polling manner, and if the overall quality is poor, the transmitting mechanism 1 issues a frequency change notification, that is, according to The frequency conversion table switches to the next channel, and must stay for about 110 ms after the frequency change. If the receiving mechanism 2 receives the frequency change notification, it immediately switches to the next preset channel. When the receiving mechanism 2 does not receive the packet twice, That is, start to frequency-reverse between the current channel and the next channel; if it exceeds 110 ms, start the scanning mechanism, continuously scan each channel continuously, and switch the frequency every 6.4 ms until receiving the packet of the transmitting mechanism 1 This speed is up to 102.4 ms for a round of 16 frequencies, so the dwell time after selecting the frequency change is at least 110 ms. Since each transmitting mechanism 1 is used for the first time when it is shipped from the factory, the frequency-changing table is automatically arranged in an out-of-order manner according to the real random number, so theoretically there are 16! Different kinds of frequency conversion tables, therefore, the frequency conversion table of each transmitting mechanism 1 has exactly the same probability (1/16!)=4.8×10 ^-14 , and the transmitting mechanism 1 automatically burns to the frequency after generating the frequency conversion table. The flash memory 1214 will not be changed thereafter, unless the external force is forced to burn, and after the invention is enabled, whenever the receiving mechanism 2 applies for registration to the transmitting mechanism 1, the transmitting mechanism 1 will change the frequency conversion table in the registration reply packet. It is transmitted to the receiving mechanism 2, so that the frequency change can be quickly synchronized whenever an interference is encountered, and the receiving mechanism 2 acquires the frequency change table at the time of registration, and thereafter the table is changed only when re-registering.

In addition, when the present invention performs timing planning (as shown in FIG. 7), the transmitting mechanism 1 will send a packet every 5 ms, each packet having a length of 57 bytes and a transmission time of (57 bytes) X (8 bits/ Sec) / 250 kbps = 1824 us. Therefore, after receiving the packet, each receiving unit 2 has ample time to process the packet up to 3.176 ms.

Since the transmitting mechanism sends out a packet every 4860 μs, it can be a beacon with a length of 17 bytes or a voice with a length of 57 bytes, or a packet with a length of 33 or 73 bytes with registration reply information. The receiving institution 2 that has been designated to return the quality immediately sends a quality return packet after receiving the downlink packet.

For the receiving organization 2 that wants to apply for registration or registration, the packet can only be transmitted at the end of each cycle; since the registration reply packet is longer, if the time taken by the quality reply packet is added, the remaining space is not conducive to registration. Request (or report) the transmission of the packet, therefore, the registered reply packet does not specify the product in the planned packet type Quality reply, if the downlink packet is a registration reply packet, the receiver to be registered or reported can start to send the packet immediately after the end of the packet, otherwise it must wait for about 960 μs before sending the packet after the end of the downlink packet.

The packet format of the present invention can be divided into a downlink packet format and an upload packet format, and the downlink packet format is as follows: Where: FCF=0x80; DSN: packet sequence number; PANID: network number; Address: serial number of the specified device; RegNo: registration number assigned or assigned; Channel Seq.: frequency table; Voice Data: voice data; Command: The contents of the command of the downlink packet are as follows:

The upload packet format is shown in the following table:

Where FCF=0x81

RegNo: registration number

Address: device serial number

Command: The content of the command to upload the package is shown in Table 4 below:

According to the IEEE 802.15.4 data packet format, the planned voice packet format, the entire packet length includes 6 bytes of physical layer header (PHY Header), 2 bytes of frame control field (FCF), 1 bytes of packet number ( DSN), 2 bytes destination PANID, 2 bytes destination address, n bytes voice data, 2 bytes error check code, and 2 bytes of system instruction space reserved. Because the packet source is PAN Coordinator, the Source PANID and Source Address fields are omitted. As for the Destination Address field, if it is a broadcast packet, it must be filled with 0xFFFF.

In addition, the present invention can be verified by the following methods: (1) Voice packet measurement:

Figure 8 shows the packet before and after the transmitting mechanism 1 presses the utter/mute button 132. It can be seen that the length of the MSDU packet (i.e. 6 Bytes without the PHY Header) is increased by 40 bytes from 11 bytes to 51 bytes.

Figure 9 shows the frequency change mechanism. Since the Sniffer can only observe one frequency at a time, the status of the frequency change cannot be recorded. The test method is to let the two receiving units 2 of 0x0605 and 0x0001 go online, then turn off 0x0605 first, then turn off. 0x000, as can be seen from Figure 9, after 0x0605 is turned off, 0x0605 no longer responds to the reception quality. Since 0x0001 still responds to quality 0x6C, the system does not change the frequency, Sniffer can still view the packet; but when 0x0001 is also closed, The launching agency 1 has not received any return, so the launching agency soon 1 send the frequency change announcement (Command=0x90), then the frequency jumps, Sniffer no longer sees the packet, until the 1755.198 ms packet appears again; this is because the transmitting mechanism 1 constantly changes the frequency, each frequency must be changed The stay is about 110 ms, the interval is 15 frequencies is about 1650 ms, and after each frequency frequency change announcement is issued, it waits for about 5 ms, so the rough estimation interval is about 1725 ms, which is not much different from the actual measurement.

(2) The result of the actual measurement of the voice signal transmission is shown in Fig. 10. The figure is a sine wave with a frequency of 1 kHz and an amplitude of 0.5 V as the test signal. The result shows that the firmware written according to the above-mentioned plan is correct. The voice is transmitted and the delay time is just within 10 ms of the expected time.

The invention relates to a wireless frequency-interrupting anti-interference full-duplex voice broadcasting device, which has the technology of automatic frequency change and anti-interference characteristics, and can greatly improve the noise caused by the interference of the voice broadcasting system currently on the market, wherein the full double The voice communication function is different from the traditional one-way amplification or broadcasting function. Except that the transmitting mechanism 1 can be used as a broadcast, the receiving mechanism 2 can also be used as a pager, an emergency call master, when short-distance emergency contact, monitoring and For the purpose of salvation, this technology can be applied to people's livelihood electronics such as personnel call system, sound reinforcement system, teaching broadcast, wireless tour guide call and monitoring system, wireless short-distance voice and surveillance and rescue purposes, and can also be applied to the military team field. Patrol monitoring, pre-emergency wireless command communication system, etc., can be popularized for general livelihood purposes.

In summary, the wireless frequency-interference anti-interference full-duplex voice broadcast device of the present invention can effectively improve various shortcomings of the conventional use, can achieve the technical characteristics of full-duplex (two-way) voice, and has good mobility of the receiving mechanism and can be carried at any time. As an emergency caller, the emergency call launching mechanism can achieve the purpose of avoiding environmental interference, saving electricity, facilitating short-range emergency contact, monitoring and seeking for help; More progressive, more practical, and more in line with the needs of consumers, it has indeed met the requirements of the invention patent application, and filed a patent application according to law.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.

1‧‧‧ Launching agency

11‧‧‧Speech sampling/reconstruction unit

12‧‧‧Regional network unit

121‧‧‧ZigBee Module

1211‧‧‧Synchronous serial interface buffer

1212 ‧‧‧Transmission buffer

1213‧‧‧Transfer packet voice device

1214‧‧‧Flash memory

122‧‧‧Power Amplifier

123‧‧‧RF antenna

13‧‧‧Operating unit

131‧‧‧ indicator lights

132‧‧‧Send/Mute button

133‧‧‧Voice indicator

134‧‧‧Power Supply Department

135‧‧‧ microphone contacts

136‧‧‧ headphone contacts

2‧‧‧ Receiving institutions

21‧‧‧Speech sampling/reconstruction unit

22‧‧‧Regional network unit

221‧‧‧ZigBee Module

2211‧‧‧buffer

2212‧‧‧ Receive buffer

2213‧‧‧ Receiving packet voice device

2214‧‧‧Flash memory

222‧‧‧RF antenna

23‧‧‧Operating unit

231‧‧‧ indicator light

232‧‧‧ function keys

233‧‧‧Voice indicator

234‧‧‧Power Supply Department

235‧‧‧ microphone contacts

236‧‧‧ headphone contacts

237‧‧‧ Registration button

301‧‧‧Power-on reset

302‧‧‧ Idle

303‧‧‧ Receiving upload packets

304‧‧‧Read flash memory data

305‧‧‧Set quality return code

306‧‧‧Package information

307‧‧‧Transfer download package

308‧‧‧Unpacking the package

309‧‧‧Voice data receiving register

310‧‧‧Speech reconstruction

311‧‧‧Is it connected?

312‧‧‧Check warning parameters

313‧‧‧Set wireless frequency parameters

314‧‧‧Starting lights and sound warnings

315‧‧‧Check registration and registration parameters

316‧‧‧Read parameters

317‧‧‧Set registration parameters

318‧‧‧Write the data of the scratchpad into the flash memory

319‧‧‧Sound sampling

320‧‧‧Transfer data register

321‧‧‧ Is the transfer register full?

401‧‧‧Power-on reset

402‧‧‧Do you register?

403‧‧‧Press the registration button

404‧‧‧ Press for more than 1 second

405‧‧‧Received download package

406‧‧‧Transfer registration packet

407‧‧‧Is registration successful?

408‧‧‧ idle

409‧‧‧ warning

410‧‧‧Start warning

411‧‧‧ Is the transfer register full?

412‧‧‧Read parameters

413‧‧‧Package information

414‧‧‧Transfer upload packet

415‧‧‧Received download package

416‧‧‧Do you have frequency hopping?

417‧‧‧Change channel

418‧‧‧Voice data receiving register

419‧‧‧Voice reconstruction

420‧‧‧ idle

421‧‧‧Does the hopping table change?

422‧‧‧Change frequency

423‧‧‧Received download package

424‧‧‧Unpacking the package

425‧‧‧ Press the function key to report

426‧‧‧ Is it pressed?

427‧‧‧Uploaded to the packet

428‧‧‧Received download package

429‧‧‧Sound sampling

430‧‧‧Transfer data register

Fig. 1 is a schematic view showing the appearance of the present invention.

Figure 2 is a schematic diagram of the basic architecture of the present invention.

Figure 3 is a block diagram of the present invention.

Figure 4 is a schematic illustration of the operational unit blocks of the present invention.

Figure 5 is a schematic flow chart of the launching mechanism of the present invention.

Figure 6 is a flow chart showing the receiving mechanism of the present invention.

Figure 7 is a schematic diagram of the timing chart of the present invention.

Figure 8 is a schematic diagram of the voice packet of the present invention.

Figure 9 is a schematic diagram of the frequency measurement of the present invention.

Figure 10 is a schematic diagram showing the measured results of the voice signal transmission of the present invention.

1‧‧‧ Launching agency

11‧‧‧Speech sampling/reconstruction unit

12‧‧‧Regional network unit

13‧‧‧Operating unit

2‧‧‧ Receiving institutions

21‧‧‧Speech sampling/reconstruction unit

22‧‧‧Regional network unit

23‧‧‧Operating unit

Claims (9)

A wireless frequency-interference anti-interference full-duplex voice broadcasting device includes: a transmitting mechanism comprising a voice sampling/reconstruction unit, a regional network unit connected to the voice sampling/reconstruction unit, and a regional network unit The connected operation unit can periodically send a data packet with or without voice, wherein the regional network unit of the transmitting mechanism has at least one ZigBee module, a power amplifier connected to the ZigBee module, and a power amplifier. An RF antenna, the ZigBee module includes a synchronous serial interface buffer, a transmission buffer, a transmission packet voice device, and a flash memory; and at least one receiving mechanism includes a voice sampling/reconstruction unit, and a A local area network unit connected to the voice sampling/reconstruction unit and an operation unit connected to the area network unit are connected to the transmitting mechanism to receive a data packet with or without voice, so that the transmitting unit and the receiving unit are connected Stay on standby. The wireless frequency modulation anti-interference full-duplex voice broadcasting device according to claim 1, wherein the voice sampling/reconstruction unit and the regional network unit of the transmitting mechanism are connected to each other by a synchronous serial interface (SPI). The wireless frequency modulation anti-interference full-duplex voice broadcasting device according to claim 1, wherein the operating unit of the transmitting mechanism comprises an indicator light, an uttering/mute button, a voice indicator, a power supply unit, and a microphone connection. Point and headphone contacts. The wireless frequency modulation anti-interference full-duplex voice broadcasting device according to claim 1, wherein the voice sampling/reconstruction unit and the regional network unit of the receiving mechanism are connected to each other by a synchronous serial interface (SPI). Wireless frequency-interference anti-interference full-duplex voice according to item 1 of the patent application scope The broadcast device, wherein the regional network unit of the receiving mechanism has at least one ZigBee module and a radio frequency antenna connected to the ZigBee module. The wireless frequency modulation anti-interference full-duplex voice broadcasting device according to claim 5, wherein the ZigBee module includes a synchronous serial interface buffer, a receiving buffer, a receiving packet voice device, and a flash Memory. The wireless frequency modulation anti-interference full-duplex voice broadcasting device according to claim 1, wherein the operating unit of the receiving mechanism comprises an indicator light, a function key, a voice indicator, a power supply unit, a microphone contact, Headset contacts and registration keys. The wireless frequency-interference anti-interference full-duplex voice broadcast device according to claim 1, wherein the operation mechanism of the transmitting mechanism is: power-on reset to make it enter an idle state, and determine whether to receive the upload packet, if If no, the flash memory data is read and the quality return code is set, and the data is encapsulated to transmit and download the packet, and then enters the idle state. If the upload packet is received, the packet is unpacked and the voice is received through the voice data receiving register. Rebuild, at this time, check whether the connection is connected. If there is a connection, check the warning parameters. If there is no connection, check the warning parameters after setting the radio frequency parameters. When the warning parameters are checked, the lights and audible alarms are activated. And check the registration and report parameters. When there is no warning parameter, check the registration and report the parameters directly. If there is no need to register and report, read the parameter step and read the flash memory data and set the quality return. Code, and package the data to transfer the download packet, and then enter the idle state, then, when you want to register and report, then After setting the registration parameters, the data of the scratchpad is written into the flash memory, and then the parameter reading step is performed and the flash memory data is read and the quality return code is set, and the data is packaged for transmission and downloading, and then idle. State; another sound When the sound is sampled, the data buffer is directly sampled and checked whether the transfer register is full. If it is full, the parameter reading step is performed and the flash memory data is read and the quality return code is set, and the data is packaged. The transmission download packet is transmitted, and then the idle state is entered. If it is not full, the sound sampling is performed again. The wireless frequency-interference anti-interference full-duplex voice broadcasting device according to claim 1, wherein the operating mechanism of the receiving mechanism is: selecting whether to register after power-on reset, pressing the registration button if registration is not required, and Press for more than 1 second. If it is less than 1 second, press the registration button again. After pressing for more than 1 second, the download packet will be received. After receiving the download packet, the registration packet will be transmitted and the registration will be successful. If it is not successful. Press the registration button again, if it is successful, enter the idle state, and judge whether it is necessary to warn. If the warning is required, check whether the transfer register is full after starting the warning. If there is no warning, check whether the transfer register is already Full, if it is full, the parameter reading step is performed, and the upload packet is transmitted after the data is encapsulated. If it is not full, it is judged whether to receive the download packet, if it does not receive the download packet, it enters the idle state, and if the download packet is received, it determines whether the frequency hopping is performed. If the frequency hopping is required, after the channel is changed, the voice data is received through the voice register to be reconstructed, and the idle state is entered, if no frequency hopping is required, Then, the voice data is received by the temporary storage device to complete the voice reconstruction, and enters the idle state. When the download packet is not received, the frequency hopping table is selected for replacement. If the replacement is not necessary, the frequency change operation is performed. Receiving the download packet; and when registering after the power-on reset, the check is to receive the download packet, and if it is received, it is convenient to unpack the packet, then the voice is re-established via the voice data receiving register, and enters the idle state, when there is no receiving Download the package and press the function key to report it, and judge whether to press it. If there is no compression, press it again. If it has been pressed, you can upload the report packet and receive the download packet. After receiving the download packet, it is convenient to unpack the packet and then perform voice reconstruction via the voice data receiving register, and enter the idle state. If the download packet is not received, the registration button is pressed again.