CN111147098A - Integrated intercom system chip and intercom - Google Patents
Integrated intercom system chip and intercom Download PDFInfo
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- CN111147098A CN111147098A CN201811202972.3A CN201811202972A CN111147098A CN 111147098 A CN111147098 A CN 111147098A CN 201811202972 A CN201811202972 A CN 201811202972A CN 111147098 A CN111147098 A CN 111147098A
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- system chip
- interphone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
The invention discloses an integrated interphone system chip and an interphone, wherein the integrated interphone system chip comprises a display driving circuit and at least one of a main control circuit and a radio frequency transceiving circuit, wherein the radio frequency transceiving circuit is used for processing a first radio frequency signal received by an antenna to obtain a first audio signal and processing a second audio signal acquired by a microphone to obtain a second radio frequency signal; the main control circuit is used for controlling the radio frequency transceiving circuit and the display driving circuit to work; the display driving circuit displays the received display information on a display screen; the integrated interphone system chip provided by the invention solves the problems that the existing interphone is complex in circuit, high in cost and not beneficial to equipment miniaturization, and the interphone is simplified in circuit and beneficial to miniaturization of the interphone.
Description
Technical Field
The invention relates to the technical field of interphones, in particular to an integrated interphone system chip and an interphone.
Background
With the rapid development of social economy, wireless communication is indispensable in people's daily life, and with the increasingly expanded service range, users are pressing for wireless communication technology products with multiple services, multiple functions and high quality (such as interphones), but in the field of interphone communication, each function module, such as a Radio Frequency (RF) communication part, a Micro Controller Unit (MCU) part, a display part, and the like, is independently integrated in an interphone, for example, an RF Radio Frequency chip, an MCU control chip, and an LCD display driver are respectively and independently welded on a PCB, and then peripheral auxiliary circuits are correspondingly arranged to combine into an interphone, and such a way results in that the interphone circuit is complex, high in cost, and not beneficial to miniaturization of equipment.
Disclosure of Invention
The invention aims to solve the technical problems that the existing interphone is complex in circuit, high in cost and not beneficial to equipment miniaturization, and provides an integrated interphone system chip and an interphone.
In order to solve the above technical problems, the present invention provides an integrated intercom system chip, including:
the display driving circuit further comprises at least one of a main control circuit and a radio frequency transceiving circuit;
the radio frequency transceiver circuit is used for processing a first radio frequency signal received by the antenna to obtain a first audio signal and processing a second audio signal acquired by the microphone to obtain a second radio frequency signal;
the main control circuit is used for controlling the radio frequency transceiving circuit and the display driving circuit to work;
the display driving circuit is used for displaying the received display information on the display screen.
Optionally, the integrated interphone system chip includes a display driving circuit, a main control circuit and a radio frequency transceiver circuit.
Optionally, the integrated intercom system chip further includes a power control circuit, and the power control circuit is configured to provide preset voltages for the main control circuit, the radio frequency transceiver circuit, and the display driving circuit.
Optionally, the radio frequency transceiver circuit processes a first radio frequency signal received by the antenna, extracts display information from the first radio frequency signal, and sends the display information to the main control circuit or the display driving circuit.
Optionally, the display information includes at least one of a frequency and a channel of the integrated intercom system chip.
Optionally, the display driving circuit, the main control circuit and the radio frequency transceiver circuit are integrated in one chip through a system-in-package, or the display driving circuit, the main control circuit and the radio frequency transceiver circuit are integrated in one system-in-chip.
Furthermore, the invention also provides an interphone, which comprises the integrated interphone system chip, an antenna and a loudspeaker;
the antenna sends the received first radio frequency signal to the integrated interphone system chip, the integrated interphone system chip processes the first radio frequency signal, and the processed first audio signal is sent to the loudspeaker to be played.
Optionally, the interphone further comprises a microphone;
the microphone sends the second audio signal obtained through collection to the integrated interphone system chip, the integrated interphone system chip processes the second audio signal, and the second radio-frequency signal obtained through processing is sent to the antenna.
Optionally, the interphone further comprises a key circuit, and the key circuit is connected with the integrated interphone system chip; when the key circuit is detected to be switched on, the integrated interphone system chip controls the microphone to be in a working state, and the microphone collects a first audio signal.
Optionally, the interphone further comprises a display screen, and the display screen is connected with the integrated interphone system chip; the integrated interphone system chip processes the first radio frequency signal to obtain display information, and the display information is displayed on the display screen.
Advantageous effects
The invention provides an integrated interphone system chip and an interphone, wherein the integrated interphone system chip comprises a display driving circuit and at least one of a main control circuit and a radio frequency transceiving circuit, wherein the radio frequency transceiving circuit is used for processing a first radio frequency signal received by an antenna to obtain a first audio signal and processing a second audio signal acquired by a microphone to obtain a second radio frequency signal; the main control circuit is used for controlling the radio frequency transceiving circuit and the display driving circuit to work; the display driving circuit is used for displaying received display information on the display screen, the interphone circuit scheme with the display screen based on the chip design can realize extremely simple design, solves the problems that the circuit of the existing interphone is complex, high in cost and not beneficial to equipment miniaturization, ensures simplification of the interphone circuit, reduces cost and is beneficial to equipment miniaturization.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a first schematic structural diagram of an integrated intercom system chip according to a first embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a chip of the integrated intercom system according to the first embodiment of the present invention;
fig. 3 is a third schematic structural diagram of a chip of the integrated intercom system according to the first embodiment of the present invention;
fig. 4 is a fourth schematic structural diagram of a chip of the integrated intercom system according to the first embodiment of the present invention;
fig. 5 is a schematic structural diagram of an intercom device according to a second embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The embodiments of the present invention will be described in detail with reference to the accompanying drawings; it should be noted that the contents of the embodiments are only for explaining the present invention, and do not limit the present invention.
First embodiment
This embodiment provides an integrated intercom system chip, and this integrated intercom system chip includes and shows drive circuit, still includes at least one in master control circuit and the radio frequency transceiver circuit, for example, refer to fig. 1, fig. 1 is the structure schematic diagram one of the integrated intercom system chip that this embodiment provided, and this integrated intercom system chip includes: the display device comprises a main control circuit 101, a display driving circuit 102 connected with the main control circuit, and a radio frequency transceiving circuit 103 connected with the main control circuit. Fig. 2 is a schematic structural diagram of an integrated intercom system chip provided in this embodiment, where the integrated intercom system chip includes: a display driving circuit 101, a radio frequency transceiver circuit 103 connected to the display driving circuit; fig. 3 is a third schematic structural diagram of the integrated intercom system chip provided in this embodiment, where the integrated intercom system chip includes: a main control circuit 101 and a display drive circuit 102 connected to the main control circuit.
It should be understood that, when receiving a signal, the rf transceiver circuit 103 of the present embodiment is configured to process a first rf signal received by the antenna to obtain a first audio signal; when sending the signal, the radio frequency transceiver circuit 103 is configured to process a second audio signal collected by the microphone to obtain a second radio frequency signal.
In this embodiment, the main control circuit 101 is used for controlling the rf transceiver circuit 103 and the display driving circuit 102 to operate. That is, the main control circuit 101 has functions of a single chip or an embedded chip, and mainly functions as a human-computer interface and an application function.
It can be understood that, the operation of the main control circuit 101 controlling the radio frequency transceiver circuit 103 may be that the main control circuit 101 drives the radio frequency transceiver circuit 103 when the microphone collects the second audio signal; specifically, when the microphone collects the second audio signal, the main control circuit 101 sends a first working instruction to the radio frequency transceiver circuit 103, and the radio frequency transceiver circuit 103 works when receiving the working instruction; certainly, when the antenna receives the first radio frequency signal, the main control circuit 101 may send a first working instruction, and the radio frequency transceiver circuit 103 works according to the first working instruction; or the radio frequency transceiver circuit 103 can directly and automatically operate. The main control circuit 101 is configured to control the display driving circuit to operate when the antenna receives a first radio frequency signal or when the microphone collects a second audio signal; specifically, the main control circuit 101 sends a second working instruction to the display driving circuit, and the display driving circuit is in a working state when receiving the second working instruction. Of course, in some embodiments, the main control circuit 101 controls the rf transceiver circuit 103 and the display driving circuit 102 to operate as long as the main control circuit 101 is in an operating state.
In this embodiment, the display driving circuit 102 is configured to drive and display the received display information on the display screen, where the received display information includes the display information sent by the radio frequency transceiver circuit 103 or the display information sent by the main control circuit 101. When the integrated interphone system chip comprises the display driving circuit 102, the main control circuit 101 and the radio frequency transceiving circuit 103, the display driving is used for driving and displaying the display information sent by the main control circuit 101 on the display screen; specifically, the radio frequency transceiver circuit 103 processes a first radio frequency signal received by the antenna, extracts display information from the first radio frequency signal, and sends the display information to the main control circuit 101, and the main control circuit 101 sends the display information to the display driving circuit 102, where the display information includes at least one of frequency and channel; the frequency and the channel can comprise the working frequency and the working channel of the corresponding interphone which receives the first radio frequency signal; the integrated interphone system chip can also comprise the working frequency and the working channel of the interphone of the integrated interphone system chip, namely, as long as the integrated interphone system chip is in a working state, the main control circuit 101 sends at least one of the working frequency and the working channel of the integrated interphone system chip to the display driving circuit; of course, in another embodiment, when the integrated intercom system chip is in the working state, the main control circuit 101 further sends the working mode of the integrated intercom system chip to the display driving circuit 102, wherein the working mode of the integrated intercom system chip includes a transmitting mode and a receiving mode. When the integrated interphone system chip comprises the display driving circuit 102 and the radio frequency transceiver circuit 103, the display driver is used for driving and displaying the display information sent by the radio frequency transceiver circuit 103 on the display screen; specifically, the radio frequency transceiver circuit 103 processes a first radio frequency signal received by the antenna, extracts display information from the first radio frequency signal, and directly sends the display information to the display driver circuit 102, where the display information includes at least one of a frequency and a channel, and in the same way, the frequency and the channel may include a working frequency and a working channel of an intercom integrated with the intercom system chip; and the working frequency and the working channel of the corresponding interphone receiving the first radio frequency signal can be further included.
It should be noted that the integrated intercom system chip further includes a power control circuit 104, and the power control circuit 104 is configured to provide preset voltages for the main control circuit 101, the radio frequency transceiver circuit 103, and the display driving circuit 102, as shown in fig. 4. For example, when a certain interphone includes an integrated interphone system chip, the operating voltage of the interphone is 5V, and when the operating voltage of the integrated interphone system chip is 3.3V, the power control circuit 104 of the integrated interphone system chip converts the 5V of the interface connected to the integrated interphone system chip into 3.3V, and then provides 3.3V for the main control circuit 101, the rf transceiver circuit 103, and the display driving circuit 102 in the integrated interphone system chip.
In this embodiment, each circuit In the integrated intercom System Chip is integrated In one Chip, for example, the display driving circuit 102, the main control circuit 101, the radio frequency transceiver circuit 103, and the power control circuit 104 are integrated In one Chip through a System In a Package (SIP Package), or integrated In one Chip through a System on a Chip technology (SOC technology); it is understood that the SIP package is a package that integrates various functional chips, such as a processor, a memory, and the like, into one package, thereby implementing a substantially complete function. The SIP packaging method is corresponding to the SOC technology, and is different from the SOC technology in that the SIP packaging method adopts different chips to perform side-by-side or overlapping packaging, and the product obtained by adopting the SOC technology is a highly integrated chip product. Certainly, when the SOC technology is used for integrated setting, the display driving circuit 102, the main control circuit 101 and the radio frequency transceiver circuit 103 are integrated on a system on chip SOC, which is an integrated interphone system chip.
For convenience of understanding, the working process of the integrated intercom system chip is described in this embodiment. When the integrated intercom system chip includes the radio frequency transceiver circuit 103, the radio frequency transceiver circuit 103 includes, but is not limited to, a Voltage Controlled Oscillator (VCO), a Phase Locked Loop (PLL), a Power Amplifier (PA), a baseband processing module (DSP), a Low Noise Amplifier (LNA), and the like. The radio frequency transceiver circuit 103 is configured to process a first radio frequency signal received by an antenna to obtain a first audio signal, and specifically includes: after the antenna receives a first radio frequency signal, because the signal is very weak, the LNA is required to amplify the first radio frequency signal, the radio frequency amplified signal and a local oscillator signal from a phase-locked loop frequency synthesizer circuit (PLL, VCO) are mixed to generate an intermediate frequency signal, and the intermediate frequency signal is modulated and filtered through the DSP to generate a first audio signal; the processing, by the radio frequency transceiver circuit 103, the second audio signal acquired by the microphone to obtain the second radio frequency signal specifically includes: the microphone generates a second audio signal, the second audio signal is modulated by the PLL and the VCO to generate a transmitted radio frequency carrier signal, and the radio frequency carrier signal is transmitted to the PA for cache amplification, excitation amplification and power amplification to generate a second radio frequency signal.
The embodiment provides an integrated interphone system chip, which comprises a display driving circuit 102, a radio frequency transceiver circuit 103 and/or a main control circuit 101, and is integrated on one chip through a system-on-chip process technology, and the integrated interphone system chip can further comprise a power control circuit, so that an interphone circuit scheme with a display screen based on the chip design can realize extremely simple design, simplify interphone circuits, reduce cost and facilitate equipment miniaturization.
Second embodiment
Referring to fig. 5, fig. 5 is a schematic diagram of an intercom provided in this embodiment, the intercom 50 includes an integrated intercom system chip 501 in the first embodiment, the integrated intercom system chip 501 includes a display driving circuit, a main control circuit and a radio frequency transceiver circuit, and the intercom 50 further includes an antenna 502 and a speaker 503. The antenna 502 and the speaker 503 are respectively connected to the integrated intercom system chip 501, the working principle of the signals received by the intercom 50 is that the antenna 502 sends a first radio frequency signal to the integrated intercom system chip 501, the integrated intercom system chip 501 processes the first radio frequency signal to obtain a first audio signal, and the processed first audio signal is sent to the speaker 503 for playing. Of course, in order to make the information played by the speaker 503 more accurate and reliable, the processed first audio signal is sent to the speaker for playing after passing through an audio power amplifier (not shown in the figure).
The interphone 50 further includes a microphone 504, the microphone 504 is connected to the integrated interphone system chip 501, and the working principle of the signal transmission of the interphone 50 is that the microphone 504 transmits the acquired second audio signal to the integrated interphone system chip 501, the integrated interphone system chip 501 processes the second audio signal to obtain a second radio frequency signal, and transmits the processed second radio frequency signal to the antenna 503, and then transmits the second radio frequency signal through the antenna 503. Of course, before sending the second rf signal to the antenna, the second rf signal is sent to the antenna 502 after passing through an rf power amplifier (not shown).
The interphone 50 further includes a key circuit 505; the key circuit 505 is connected 501 with the integrated interphone system chip, when the integrated interphone system chip 501 detects that the key circuit 505 is switched on, the integrated interphone system chip 501 controls the microphone 504 to be in a working state, and the microphone 504 collects voice information. For example, when the ppt (push To talk) key of the intercom is pressed, the microphone collects the voice information of the user, and the intercom performs the transmission mode.
The interphone 50 further comprises a display screen 505, the display screen 505 is connected with the integrated interphone system chip 501, and the integrated interphone system chip 501 processes the first radio frequency signal sent by the antenna 502 to obtain display information, and displays the display information on the display screen 505. The display information comprises at least one of the frequency and the channel of the interphone, and the frequency and the channel can be the local working frequency and the local channel of the interphone, and the first radio frequency signal can also correspond to the working frequency and the local channel of the interphone; in some embodiments, when the key circuit 505 is turned on, the integrated intercom system chip 501 may also display the intercom's transmission mode on the display screen; when the integrated interphone system chip processes the first radio frequency signal, the integrated interphone system chip can also display the receiving mode of the interphone on the display screen. Of course, the Display 505 of the present embodiment includes, but is not limited to, a Liquid Crystal Display (LCD), an LED Display (LED Display), and the like.
Of course, the interphone 50 further includes a power module (not shown) for providing power to the devices of the interphone.
The embodiment provides an interphone, which comprises an integrated interphone system chip, wherein the integrated interphone system chip comprises a display driving circuit, a main control circuit and a radio frequency transceiver circuit; the interphone further comprises a microphone, a loudspeaker, an antenna, keys and a display screen, the working process of the interphone is explained in the embodiment, the minimum interphone system is used for achieving two-way mobile communication, and compared with existing interphone equipment, the interphone provided by the embodiment is smaller.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An integrated interphone system chip is characterized by comprising a display driving circuit and at least one of a main control circuit and a radio frequency transceiver circuit;
the radio frequency transceiver circuit is used for processing a first radio frequency signal received by the antenna to obtain a first audio signal and processing a second audio signal collected by the microphone to obtain a second radio frequency signal;
the main control circuit is used for controlling the radio frequency transceiving circuit and the display driving circuit to work;
the display driving circuit is used for displaying the received display information on the display screen.
2. The integrated intercom system chip as in claim 1 wherein said integrated intercom system chip includes said display driver circuit, a master control circuit and a radio frequency transceiver circuit.
3. The integrated interphone system chip of claim 2, further comprising a power control circuit for providing preset voltages for the main control circuit, the RF transceiver circuit and the display driving circuit.
4. The integrated interphone system chip of claim 3, wherein the RF transceiver circuit processes a first RF signal received by an antenna, extracts the display information from the first RF signal, and sends the display information to the main control circuit or the display driving circuit.
5. The integrated intercom system chip as in claim 4 wherein said display information includes at least one of frequency, channel.
6. The integrated interphone system chip of any one of claims 2 to 5, wherein the display driving circuit, the main control circuit and the RF transceiver circuit are integrated in one chip through a system-in-package (SIP) or the display driving circuit, the main control circuit and the RF transceiver circuit are integrated in one system-in-chip.
7. An interphone, characterized in that the interphone comprises the integrated interphone system chip as in any one of claims 2 to 6, further comprising an antenna, a speaker;
the antenna sends the received first radio frequency signal to the integrated interphone system chip, the integrated interphone system chip processes the first radio frequency signal and sends the processed first audio signal to the loudspeaker for playing.
8. The intercom of claim 7, wherein said intercom further comprises a microphone;
the microphone sends the second audio signal obtained by collection to the integrated interphone system chip, and the integrated interphone system chip processes the second audio signal and sends the second radio frequency signal obtained by processing to the antenna.
9. The intercom of claim 8, wherein said intercom further comprises a key circuit, said key circuit being connected to said integrated intercom system chip; when the key circuit is detected to be switched on, the integrated interphone system chip controls the microphone to be in a working state, and the microphone collects a first audio signal.
10. The interphone according to any of the claims 7 to 9, further comprising a display screen connected with the integrated interphone system chip; and the integrated interphone system chip processes the first radio frequency signal to obtain display information, and the display information is displayed on the display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811202972.3A CN111147098A (en) | 2018-10-16 | 2018-10-16 | Integrated intercom system chip and intercom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811202972.3A CN111147098A (en) | 2018-10-16 | 2018-10-16 | Integrated intercom system chip and intercom |
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| CN111147098A true CN111147098A (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811202972.3A Pending CN111147098A (en) | 2018-10-16 | 2018-10-16 | Integrated intercom system chip and intercom |
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Cited By (1)
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| CN112462914A (en) * | 2020-12-10 | 2021-03-09 | 天津理工大学 | Integrated power supply structure |
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Application publication date: 20200512 |