CN218772075U - Full-section receiving multifunctional amateur interphone - Google Patents
Full-section receiving multifunctional amateur interphone Download PDFInfo
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- CN218772075U CN218772075U CN202222996402.4U CN202222996402U CN218772075U CN 218772075 U CN218772075 U CN 218772075U CN 202222996402 U CN202222996402 U CN 202222996402U CN 218772075 U CN218772075 U CN 218772075U
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Abstract
The utility model relates to a full section receives multi-functional amateur intercom, including microprocessor, first radio frequency chip, second radio frequency chip, radio chip, first radio frequency chip and second radio frequency chip all adopt BK4819 chip and be connected with transfer channel control switch between first radio frequency chip and the second radio frequency chip, first radio frequency chip, second radio frequency chip, radio chip and transfer channel control switch all are connected with microprocessor; the radio frequency transceiving antenna adopts a UV dual-band radio frequency antenna, and is connected with three receiving channels, two transmitting channels and a radio channel, wherein the three receiving channels are connected to the first radio frequency chip and the second radio frequency chip through a receiving channel control switch, and the two transmitting channels are connected to the second radio frequency chip and the first radio frequency chip through a transmitting channel control switch. The utility model discloses realize receiving two signals simultaneously and can receive frequency range 100MHz-520MHz, 840-1000MHz and AM long wave, medium wave, shortwave and FM aviation frequency channel.
Description
Technical Field
The utility model relates to an intercom technical field, concretely relates to multi-functional amateur intercom is received to whole section.
Background
The interphone is a two-way mobile communication tool, can communicate without any network support, generates no telephone charge, is suitable for relatively fixed and frequent communication occasions, is suitable for being held or bagged and is convenient for individuals to carry due to the small volume, light weight and low power of the wireless interphone, and can carry out communication contact when going out.
For users using amateur interphones, the single-frequency band or dual-frequency band transceiver cannot meet the requirements, especially more and more users need to listen to long/medium/short wave or aviation frequency bands, and the complex superheterodyne receiving frequency conversion is adopted to realize the complex circuit, more components and high cost.
SUMMERY OF THE UTILITY MODEL
In view of the deficiency of the prior art, the technical problem to be solved by the utility model is to provide a multi-functional amateur intercom is received to whole section, realizes receiving two signals simultaneously and can receive frequency range 100MHz-520MHz, 840-1000MHz and AM long wave, medium wave, shortwave and FM aviation frequency channel.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a full-section receiving multifunctional amateur interphone comprises a microprocessor, a first radio frequency chip, a second radio frequency chip, a radio frequency transceiving antenna, a microphone, a volume adjuster and a loudspeaker connected to the volume adjuster through an audio power amplifier, wherein the first radio frequency chip and the second radio frequency chip are both BK4819 chips, a transfer channel control switch is connected between the first radio frequency chip and the second radio frequency chip, the microphone and the volume adjuster are respectively connected with the transfer channel control switch, and the first radio frequency chip, the second radio frequency chip, the radio chip and the transfer channel control switch are all connected with the microprocessor;
the radio frequency transceiving antenna adopts a UV dual-band radio frequency antenna, the radio frequency transceiving antenna is connected with a three-way receiving channel, two-way transmitting channels and a radio channel, the three-way receiving channel is connected to a first radio frequency chip and a second radio frequency chip through a receiving channel control switch, the two-way transmitting channels are connected to the second radio frequency chip and the first radio frequency chip through a transmitting channel control switch, the radio channel is connected with a radio chip, and the radio chip is further connected with an AM magnetic bar antenna and a volume regulator.
Further, the radio chip adopts a BK1080 chip.
Furthermore, the interphone also comprises an array keyboard, a color LCD screen and a FLASH memory, wherein the array keyboard, the color LCD screen and the FLASH memory are respectively connected with the microprocessor, and the microprocessor is connected to the volume regulator through a filter shaping circuit.
Further, the array keyboard adopts a 4 × 4 array; the array keyboard is connected with the microprocessor through a flexible flat cable.
Furthermore, the array keyboard is installed on the array keyboard plate, an installation groove is formed in the back side of the array keyboard plate, and the loudspeaker is fixed in the installation groove of the array keyboard plate through a weight and a screw.
Furthermore, an ST7735 driving chip is arranged in the color LCD screen and is connected with the microprocessor through a flip type wire arranging seat.
Furthermore, the interphone also comprises a ceramic antenna and a GPS module, wherein the GPS module is connected with the microprocessor and the ceramic antenna.
Furthermore, this intercom still includes PCB antenna and bluetooth module, bluetooth module connects microprocessor and PCB antenna.
The utility model discloses the intercom adopts BK4819 chip as the radio frequency chip, and BK1080 is as the radio chip, and the suitable microprocessor of collocation is controlled, and different functional design needs the microprocessor of selecting the different grade type. The microprocessor receives the signals of the keys and keyboard operation of the interphone body, and controls the interphone to realize the operations of entering, setting or exiting a menu, transmitting radio frequency and the like according to different operations.
When the utility model is in talkback voice emission mode, the signal of the transmitter is sent to the first radio frequency chip or the second radio frequency chip through the transfer channel control switch to be modulated into a radio frequency signal, and then is sent to the radio frequency receiving and transmitting antenna after the corresponding transmitting channel is opened by the transmitting channel control switch and amplified; when the two receiving signals appear, the signal received by the first radio frequency chip is modulated and processed by the second radio frequency chip through the transit channel control switch, so that the two signals are received simultaneously.
The utility model discloses there are debugging data, frequency point data and word stock and speech data in the Flash memory, through BK 4819's MDC or FSK characteristic, the simple and easy code of transmission, after the receiving end intercom received the code, can contrast the word stock in the Flash memory and show the characters on the colored LCD screen to overcome traditional simulation amateur intercom and need have word stock chip cooperation problem; after the microprocessor reads the voice data in the Flash, the microprocessor can utilize the PWM function of the microprocessor to convert the voice data into PWM waveforms, and then the PWM waveforms are converted into analog voice waveforms through the filter shaping circuit to be sent to the audio power amplifier, so that the problem that a special voice chip is required to be hung outside the traditional analog amateur interphone is solved.
Drawings
Fig. 1 is a schematic block diagram of the interphone of the present invention.
The mark in the figure is: 10. a microprocessor; 12. an array keyboard; 13. a color LCD screen; 14. a filter shaping circuit; 15. a volume adjuster; 16. an audio power amplifier; 17. a speaker; 21. a first radio frequency chip; 22. a second radio frequency chip; 23. a transfer channel control switch; 24. a microphone; 30. a radio frequency transmit-receive antenna; 40. a radio chip; 50. a FLASH memory; 60. a GPS module; 70. and a Bluetooth module.
Detailed Description
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1, the present embodiment provides a full-segment receiving multifunctional amateur interphone, which includes a microprocessor 10, a first rf chip 21, a second rf chip 22, a radio chip 40 and an rf transceiver antenna 30. The microprocessor 10 may adopt STM32F405RG, the first rf chip 21 and the second rf chip 22 both adopt BK4819 chips, the radio chip 40 adopts BK1080 chips, and the rf transceiver antenna 30 adopts a UV dual-band rf antenna.
In this embodiment, the interphone further includes a key, an array keyboard 12, a color LCD screen 13 and a FLASH memory 50, the array keyboard 12, the color LCD screen 13 and the FLASH memory 50 are respectively connected to a microprocessor 10, the microprocessor 10 is connected to a volume adjuster 15 through a filter shaping circuit 14, the volume adjuster 15 is connected to a speaker 17 through an audio power amplifier 16, and the volume adjuster 15 changes the playback volume of the speaker 17 by changing the amplitude of a signal sent to the audio power amplifier. The character font is written in the Flash memory 50 in advance and is correspondingly coded, so that simple codes can be transmitted through the MDC or FSK characteristic of BK4819, and characters can be displayed on the color LCD screen 13 by contrasting the font in the Flash memory 50 after the receiving end interphone receives the codes; meanwhile, voice data are written in the Flash memory 50 in advance, voice playing can be performed through the PWM function of the microprocessor 10, and compared with fixed voice of a voice chip IC, the mode of using Flash + PWM voice broadcasting is more flexible and convenient.
The color LCD screen 13 of the embodiment is installed on the front surface of the shell of the interphone, is internally provided with an ST7735 driving chip and is connected with the microprocessor 10 through a flip type wire arranging seat, and text menus or pictures can be freely displayed by using the color LCD screen 13.
The array keyboard board is installed on the front face of the interphone shell, the array keyboard 12 on the array keyboard board is connected with the microprocessor 10 through a flexible flat cable, a user can conveniently select different menu settings and conveniently set working frequency points by specifically using the 4 x 4 array keyboard 12, and the array keyboard 12 is connected through the flexible flat cable and is convenient to detach. The back side of the array keyboard plate is provided with a mounting groove, the loudspeaker 17 is fixed in the mounting groove of the array keyboard plate through a weight and screws, glue does not need to be applied, and the loudspeaker is convenient to detach and replace.
In this embodiment, the radio frequency transceiver antenna 30 is connected to three receiving channels and two transmitting channels, the three receiving channels are connected to the first radio frequency chip 21 and the second radio frequency chip 22 through a receiving channel control switch, the two transmitting channels are connected to the second radio frequency chip 22 and the first radio frequency chip 21 through a transmitting channel control switch, a transfer channel control switch 23 is connected between the first radio frequency chip 21 and the second radio frequency chip 22, and the first radio frequency chip 21, the second radio frequency chip 22 and the transfer channel control switch 23 are all connected to the microprocessor 10. Wherein: the three receiving channels are respectively a 100-240MHz receiving channel, a 240-520MHz receiving channel and a 840-1000MHz receiving channel, and the two transmitting channels are respectively a 100-240MHz transmitting channel and a 240-520MHz transmitting channel. The receiving channel control switch, the transmitting channel control switch and the transit control switch 23 are all commercially available and configured, the receiving channel control switch and the transmitting channel control switch can be controlled by a radio frequency chip, and the control technology is conventional and will not be described herein.
The interphone further comprises a microphone 24, the microphone 24 and the volume regulator 15 are respectively connected with the transit channel control switch 23, when the interphone is in a talkback voice transmission mode, a signal of the microphone 24 is transmitted to the first radio frequency chip 21 or the second radio frequency chip 22 through the transit channel control switch 23 to be modulated into a radio frequency signal, and then the radio frequency signal is transmitted to the radio frequency transceiver antenna 30 after the corresponding transmission channel is opened through the transmission channel control switch and amplified; when the mobile phone is in the talkback voice receiving mode, when receiving the signal input by the radio frequency transceiving antenna 30, the audio signal demodulated by the first radio frequency chip 21 is sent to the volume adjuster 15 and the audio power amplifier 16 through the transit channel control switch 23, the loudspeaker is turned on to play the sound 17, the color LCD 13 is controlled to display different contents, when two receiving signals appear, the signal received by the first radio frequency chip 21 is modulated and processed by the second radio frequency chip 22 through the transit channel control switch 23, and therefore the two signals are received simultaneously.
A radio channel is connected between the radio chip 40 and the radio frequency transceiving antenna 30, the radio channel is a 2.3-21.85MHz/64-108MHz radio channel, and the radio chip 40 is further connected with an AM magnetic bar antenna, a volume regulator 15 and a microprocessor 10 so as to receive signals of AM long wave 153-279kHz/AM medium wave 520-1710kHz, AM short wave 2.3-21.85MHz and FM radio 64M-108 MHz.
The implementation utilizes the characteristic that a BK4819 radio frequency chip can freely define the radio frequency working frequency to realize the simultaneous receiving of 2 signals in multiple frequency bands; on a hardware circuit, the bandwidth of two groups of radio frequency transceiving channels is expanded to the maximum extent to improve the quality of radio frequency signals, and the receivable frequency ranges are from 100MHz to 520MHz and from 840 MHz to 1000 MHz. In the embodiment, by using the characteristic that the BK4819 radio frequency chip can receive and play the AM signal, after the radio frequency is set to the aviation frequency band, the aviation channel signal can be normally played without increasing any hardware cost. In addition, the characteristic that the BK4819 radio frequency chip can measure frequency is utilized, and frequency measurement and frequency matching can be realized without extra hardware cost.
In this embodiment, the interphone further comprises a ceramic antenna, a GPS module 60, a PCB antenna and a bluetooth module 70, the GPS module 60 is connected with the microprocessor 10 and the ceramic antenna, the bluetooth module 70 is connected with the microprocessor 10 and the PCB antenna, the bluetooth module 70 is used as a connection bluetooth headset and bluetooth of the interphone to read and write frequency with a mobile phone, and the GPS positioning longitude and latitude data using the GPS module 60 as the interphone is sent to a rear data platform or other receivers, altitude, time service, and the like.
The intercom can charge a lithium battery block with the maximum voltage of 8.4V through the boosting charging or seat charging mode of the fuselage TypeC, and the lithium battery block can stabilize the voltage to 3.3V through the voltage stabilizing circuit and then supply power to the whole intercom circuit.
Having shown and described the fundamental principles and the principal features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a multi-functional amateur intercom is received to whole section which characterized in that: the radio frequency chip and the volume adjuster are respectively connected with the transfer channel control switch, and the first radio frequency chip, the second radio frequency chip, the radio chip and the transfer channel control switch are all connected with the microprocessor;
the radio frequency transceiving antenna adopts a UV dual-band radio frequency antenna, the radio frequency transceiving antenna is connected with three receiving channels, two transmitting channels and one radio channel, the three receiving channels are connected to a first radio frequency chip and a second radio frequency chip through a receiving channel control switch, the two transmitting channels are connected to the second radio frequency chip and the first radio frequency chip through a transmitting channel control switch, the radio channel is connected with a radio chip, and the radio chip is further connected with an AM magnetic bar antenna and a volume regulator.
2. The all-section receiving multifunctional amateur interphone according to claim 1, characterized in that: the radio chip adopts a BK1080 chip.
3. The all-section receiving multifunctional amateur interphone according to claim 1, characterized in that: the interphone also comprises an array keyboard, a color LCD screen and a FLASH memory, wherein the array keyboard, the color LCD screen and the FLASH memory are respectively connected with the microprocessor, and the microprocessor is connected to the volume regulator through a filter shaping circuit.
4. The all-section receiving multifunctional amateur interphone according to claim 3, characterized in that: the array keyboard adopts a 4 x 4 array.
5. The all-section receiving multifunctional amateur interphone according to claim 3, characterized in that: the array keyboard is connected with the microprocessor through a flexible flat cable.
6. The all-section receiving multifunctional amateur interphone according to claim 3, characterized in that: the array keyboard is arranged on the array keyboard plate, an installation groove is formed in the back side of the array keyboard plate, and the loudspeaker is fixed in the installation groove of the array keyboard plate through a weight and a screw.
7. The all-section receiving multifunctional amateur interphone according to claim 3, characterized in that: the color LCD screen is internally provided with an ST7735 driving chip and is connected with the microprocessor through a flip type wire arranging seat.
8. The all-section receiving multifunctional amateur interphone according to claim 1, characterized in that: the interphone also comprises a ceramic antenna and a GPS module, wherein the GPS module is connected with the microprocessor and the ceramic antenna.
9. The all-section receiving multifunctional amateur interphone according to claim 1, characterized in that: the interphone further comprises a PCB antenna and a Bluetooth module, wherein the Bluetooth module is connected with the microprocessor and the PCB antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222996402.4U CN218772075U (en) | 2022-11-10 | 2022-11-10 | Full-section receiving multifunctional amateur interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222996402.4U CN218772075U (en) | 2022-11-10 | 2022-11-10 | Full-section receiving multifunctional amateur interphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218772075U true CN218772075U (en) | 2023-03-28 |
Family
ID=85647462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222996402.4U Active CN218772075U (en) | 2022-11-10 | 2022-11-10 | Full-section receiving multifunctional amateur interphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218772075U (en) |
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2022
- 2022-11-10 CN CN202222996402.4U patent/CN218772075U/en active Active
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