CN219304833U - A dual-mode walkie-talkie with recording, playback, export and query functions - Google Patents

Abstract

The utility model discloses a dual-mode walkie-talkie with recording, playback, export and query functions, which comprises a walkie-talkie body, a main control board installed in the walkie-talkie body, and an antenna module installed on the walkie-talkie body and connected to the main control board; A clock module and a storage module connected to the main control board are also installed in the walkie-talkie body, and a PTT button, a first function button and a second function button connected to the main control board are also installed on one side of the walkie-talkie body; The main body is also equipped with a microphone interface connected with the main control board and used for an external microphone, and a speaker interface used for an external speaker. The utility model utilizes the inherent function keys of the walkie-talkie body and the external earphone socket interface, and utilizes the difference between the long press and short press of the function keys, the earphone socket interface and the recording management device without destroying or changing the overall structure of the original walkie-talkie body. Connect for serial communication to realize complete functions such as recording, playback, export, query, etc., with strong practicability.

Description

A dual-mode walkie-talkie with recording, playback, export and query functions

technical field

The utility model relates to the technical field of walkie-talkies, in particular to a dual-mode walkie-talkie with recording, playback, export and query functions.

Background technique

A dual-mode walkie-talkie is a walkie-talkie that has both analog and digital formats. However, the existing dual-mode walkie-talkie products do not have a complete recording management function, that is, a complete set of functions of recording, playback, export, and query. Even though some manufacturers’ digital walkie-talkies have a simple recording function, their analog systems have no way to increase the recording function, and some walkie-talkies use the principle of a recording pen module plus a control chip and other peripheral devices to form a new simple recording module to increase recording. function, but this will increase the power consumption of the whole machine (because the handheld is powered by batteries, the smaller the power consumption, the better the machine can prolong the working time), and the difficulty of the process is increased, and there are no defects in the export function and query function in terms of function. It has recording and local playback functions, but it can only be used by certain units, and its use is limited. Therefore, it needs to be improved.

Utility model content

The purpose of this utility model is to provide a dual-mode walkie-talkie with recording, playback, export and query functions. The walkie-talkie uses the inherent function keys of the walkie-talkie body and the external earphone socket interface, without destroying or changing the overall structure of the original walkie-talkie body Under certain conditions, use the difference between the long press and short press of the function button and the serial communication between the headphone socket interface and the recording management device to realize complete functions such as recording, playback, export, query, etc., which is very practical.

In order to achieve the above purpose, the following technical solutions are adopted:

A dual-mode walkie-talkie with recording, playback, export and query functions, including a walkie-talkie body, a main control board installed in the walkie-talkie body, and an antenna module installed on the walkie-talkie body and connected to the main control board; the walkie-talkie body A clock module and a storage module connected to the main control board are also installed inside, and a PTT button connected to the main control board, a first function button and a second function button are installed on one side of the walkie-talkie body; There is a microphone interface connected with the main control board and used for an external microphone, and a speaker interface connected with the main control board and used for an external speaker; a power supply module for providing overall power supply for the walkie-talkie is also installed in the body of the walkie-talkie; the main control The board is used to transmit the modulated microphone voice analog signal and receive the demodulated voice analog signal, convert it into a voice digital signal after DSP processing and encode its recording into data information, and then transmit it to the storage module for storage; the main control board It is also used to read the data information in the storage module, decode the recording and convert it into a voice analog signal, and then output the sound to the outside through the speaker.

Further, the other side of the walkie-talkie body is also equipped with a data communication interface connected to the main control board; the data communication interface is also connected to a serial communication conversion line, and the serial communication conversion line is used for recording with the outside world via the USB interface. Manage device connections for information exchange.

Further, the data communication interface is an earphone jack interface of the walkie-talkie body.

Further, a volume adjustment switch and an audio amplifier are sequentially connected between the main control board and the speaker.

Further, the antenna module includes a radio frequency processor, a transceiver high-frequency circuit module and an antenna body sequentially connected to the main control board.

Further, the power module includes a lithium battery pack, a battery switch, and a low-dropout linear voltage regulator.

Further, the chip model adopted by the main control board is HS8851.

Adopt such scheme, the beneficial effect of the utility model is:

The walkie-talkie uses the inherent function keys of the walkie-talkie body and the external headphone socket interface, and uses the difference between the long press and short press of the function keys and the headphone socket interface to connect to the recording management device without destroying or changing the overall structure of the original walkie-talkie body. Perform serial communication to realize complete functions such as recording, playback, export, query, etc., which is very practical.

Description of drawings

Fig. 1 is a schematic block diagram of the utility model;

Fig. 2 is the structural representation of the serial port communication conversion line of the present utility model;

Fig. 3 is the circuit diagram of the main control board of the present utility model;

Fig. 4 is the circuit diagram of the storage module of the present utility model;

Fig. 5 is the circuit diagram of the function button of the present utility model;

Fig. 6 is a microphone input and a voice control circuit diagram of the utility model;

Fig. 7 is the circuit diagram of audio power amplifier and external circuit of the present utility model;

Fig. 8 is the circuit diagram of the power supply module of the present utility model;

Among them, the accompanying drawings indicate:

1—Serial communication conversion line.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.

Referring to Figures 1 to 8, the utility model provides a dual-mode walkie-talkie with recording, playback, export and query functions, including a walkie-talkie body, a main control board installed in the walkie-talkie body, and a walkie-talkie body installed on the body and connected to An antenna module connected to the main control board; a clock module and a storage module connected to the main control board are also installed in the intercom body, and a PTT button connected to the main control board, a first function button and a The second function button; the microphone interface connected with the main control board and used for an external microphone is also installed on the walkie-talkie body, and the horn interface connected with the main control board and used for an external speaker; The power supply module for the overall power supply of the walkie-talkie; the main control board (high-frequency analog system) adopts a chip with a model number of HS8851, which has DSP processing and encoding functions, and is used to transmit the modulated microphone voice analog signal and receive the demodulated signal. The voice analog signal is converted into a voice digital signal after DSP voice digital processing, and its recording is encoded into data information, and then transmitted to the storage module for storage; similarly, the high-frequency digital system directly converts the transmitted modulated data information and received data information It is also stored in the storage module after being recorded and coded in one way; the main control board is also used to read the data information in the storage module, and convert its recording decoding (digital voice data information decoding) into a voice analog signal, and then pass through the speaker Output sound to the outside world.

Wherein, the other side of the walkie-talkie body is also equipped with a data communication interface connected to the main control board; the data communication interface is also connected to a serial communication conversion line 1, and the serial communication conversion line 1 is used to communicate with the outside world via the USB interface. The recording management device is connected to carry out information interaction; the data communication interface is the earphone jack interface of the walkie-talkie body; a volume adjustment switch and an audio amplifier are also connected in sequence between the main control board and the speaker; the antenna module includes A radio frequency processor, a transceiver high-frequency circuit module, and an antenna body connected to the main control board in turn; the power module includes a lithium battery pack, a battery switch, and a low-dropout linear voltage regulator; the chip model used by the main control board is HS8851 .

Continuing to refer to Figures 1 to 8, in this embodiment, the power module includes a lithium battery pack, a battery switch, and a low-dropout linear voltage regulator. In Figure 1, thick lines represent power supply lines, and thin lines represent signal lines. The module can supply power to each module of the walkie-talkie to ensure the normal use of the walkie-talkie; the overall structure of the existing walkie-talkie is basically the same, but the size and style are different. Generally, one side of the walkie-talkie is a PTT button and 1 or 2 function keys (p. The first function button, the second function button), and the other side is the external earphone socket interface, which is used to connect the earphone cable and read and write the data interface of the intercom; to add a recording function without destroying the overall structure of the intercom, only the existing Some function buttons and headphone socket interface are compatible with the function operation of recording, storage query and export; for example, the two function buttons can be divided into two operations: long press and short press, which can just meet the "recording on, recording off" of the recording function operation. "Click to open, and then press to close, the two functions of "recording playback up and recording playback down" need two buttons to be defined as up and down to playback the entry of the recording storage file, each press up Turn the key to advance the playback of a file, and press the down key to rewind the playback of a file; if you want to view the stored file or download the stored file and clear the memory, you must connect the intercom socket interface and recording management through a dedicated USB data cable Devices, such as a computer, etc., can realize the query, download, clearing, and proofreading of the recording function in real time.

In this embodiment, the walkie-talkie is a dual-mode walkie-talkie, and the dual-mode walkie-talkie means that the two modes of the analog walkie-talkie and the digital walkie-talkie are compatible at the same time; It is stored in the memory, and the data is converted when it is to be read, and the digital signal is converted into an analog signal, and the sound is output from the audio power amplifier; before the appearance of the digital, the control chip generally used by the analog walkie-talkie is mostly an 8-bit processor, and the requirements are relatively high. Simple, there is no voice recording function without a voice processing architecture; if a recording function is required, most of them will use the method of adding a recording module, but this way, two chips work at the same time, the processing speed is relatively slow and the machine as a whole The power consumption of the walkie-talkie is relatively increased, and at the same time, a data read-write interface has to be added from the opening of the walkie-talkie shell, and the overall transformation plan is more complicated; while the chip used in the general digital walkie-talkie is an ARM processor with a DSP voice digital processing architecture. The voice codec method is different from the recording codec (the identification data information should be added when the recording is stored, and the identification data information should be removed when reading), but it can be solved by digital conversion. Therefore, most of the digital walkie-talkies have recordings. function, but many have no time memory function and export function, and can only be played back locally, and cannot be exported for storage query.

And in the present embodiment, adopt an ARM chip (main control board, the chip model that it adopts is HS8851), carry out unified processing to analog and digital, meanwhile, increase clock module (clock generator) and serial port communication data processing, It can solve the export problem and time correction problem. In addition, the chip model used in the storage module is CSNP32GCR01-AOW, which has a large storage capacity and can make the recording time reach a storage capacity of more than 300 hours to meet the storage requirements; the chip comes with DSP processing , Codec function, which can take one audio signal from the analog transmitting microphone and one audio signal output by receiving demodulation to enter the DSP processing module of the chip, perform voice A/D conversion, and then convert it into data information through recording encoding processing, and then It can be transferred to the storage module for storage, and can be retrieved during playback, and then converted into an analog signal output through recording decoding and D/A conversion; while the audio signal in the digital system is originally processed by DSP, it can be coded and converted into the recording format and stored in the memory. In this way, the digital and analog are processed by one chip, which can reduce the power consumption of the whole machine, and solve the problem of exporting and correcting time through serial communication. Specifically:

In this embodiment, the PTT button is a launch control button, and the first function button is defined as: long press operation is the recording start function, and short press operation is the recording and playback upturn key; the second function button can be defined as: short press operation is recording Playback down button, long press operation for recording continuous playback function (continuous playback set 5 continuous recording information). The recording management device can manage the recording function in a unified way. It can be connected to the USB plug of the serial communication conversion line 1 (RXD/TXD serial communication) through the computer USB interface, and the intercom plug of the serial communication conversion line 1 is inserted into the earphone socket of the intercom. JI-2, J2-2 data communication interface; the walkie-talkie and the computer are separated at ordinary times, and they are connected when necessary, such as setting and checking the real-time time (the battery of the walkie-talkie is removed for a long time, the internal freewheeling battery is dead, and the real-time time is lost) , or check, download and export the recording data of the walkie-talkie, and then set the parameters of the walkie-talkie before connecting and using it.

The chip model used by the main control board is HS8851, as shown in Figure 3, the computer USB interface is connected to the USB plug of the serial communication conversion line 1, and the intercom plug of the serial communication conversion line 1 is inserted into the JI-2, J2-2 data communication of the intercom Interface, and then connect the relevant contacts of JI-2 and J2-2 to the first pin TXD and the second pin RXD of the chip U1 to perform serial data communication, such as downloading, recording data export, intercom parameter debugging and correction, etc. The third and fourth pins of U1 are used to control the work of the power supply module. When starting up, U1 will self-check first. If there is no problem, these two pins will output high level to turn on the transmitting and receiving power supply according to the relevant operation requirements; The chip has both MCU function and DSP voice processing function. It can convert the transmitted microphone analog signal and received demodulated voice signal into data information through DSP processing, and then send the data information to the storage module (memory CSNP32GCR01 -AOW) storage, such as external key operation playback, MCU sends an instruction to read data from the memory CSNP32GCR01-AOW, after recording and decoding, the restored voice signal is sent out from the speaker, and the volume adjustment switch can adjust the volume of the sound; the fifth pin of the U1 chip is the control The 2nd pin of the memory is chip select, the 9th pin of U1 controls the data input of the 5th pin of the memory, the 11th pin controls the write protection of the 1st pin of the memory, the 13th pin is connected to the 3rd pin clock of the memory, and the 14th pin controls the memory Pin 6 outputs data, and pin 15 controls pin 7 of the memory to keep working. The memory capacity can reach 32G, which can store more than 300 hours of data and has a wide range of applications.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (7)

1. A dual-mode walkie-talkie with recording, playback, export and query functions, characterized in that it includes a walkie-talkie body, a main control board installed in the walkie-talkie body, and an antenna installed on the walkie-talkie body and connected to the main control board module; a clock module and a storage module connected to the main control board are also installed in the walkie-talkie body, and a PTT button, a first function button and a second function button connected to the main control board are also installed on one side of the walkie-talkie body; The interphone body is also equipped with a microphone interface connected with the main control board and used for an external microphone, and a speaker interface connected with the main control board and used for an external speaker; the intercom body is also installed with a power supply for the overall power supply of the intercom Module; the main control board is used to transmit the modulated microphone voice analog signal and receive the demodulated voice analog signal, convert it into a voice digital signal after DSP processing, and encode its recording into data information, and then transmit it to the storage module for storage ; The main control board is also used to read the data information in the storage module, decode and convert the recording into a voice analog signal, and then output the sound to the outside through the speaker. 2. The dual-mode walkie-talkie with recording, playback, export and query functions according to claim 1, characterized in that, the other side of the walkie-talkie body is also equipped with a data communication interface connected to the main control board; The data communication interface is also connected with a serial port communication conversion line, and the serial port communication conversion line is used to connect with an external recording management device via the USB interface for information exchange. 3. The dual-mode walkie-talkie with recording, playback, export and query functions according to claim 2, characterized in that, the data communication interface is an earphone jack interface carried by the walkie-talkie body. 4. The dual-mode walkie-talkie with recording, playback, export and query functions according to claim 1, characterized in that a volume adjustment switch and an audio amplifier are sequentially connected between the main control board and the speaker. 5. The dual-mode walkie-talkie with recording, playback, export and query functions according to claim 1, wherein the antenna module includes a radio frequency processor, a transceiver high-frequency circuit module and an antenna connected to the main control board in sequence ontology. 6. The dual-mode walkie-talkie with recording, playback, export and query functions according to claim 1, wherein the power supply module includes a lithium battery pack, a battery switch, and a low-dropout linear voltage regulator. 7. The dual-mode walkie-talkie with recording, playback, export and query functions according to claim 1, characterized in that the chip model adopted by the main control board is HS8851.

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