CN219478071U - Wired/wireless switching control module - Google Patents
Wired/wireless switching control module Download PDFInfo
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- CN219478071U CN219478071U CN202223509025.3U CN202223509025U CN219478071U CN 219478071 U CN219478071 U CN 219478071U CN 202223509025 U CN202223509025 U CN 202223509025U CN 219478071 U CN219478071 U CN 219478071U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model discloses a wired/wireless switching control module, which comprises a signal processing unit, a main control unit and an interface unit, wherein the main control unit and the interface unit are electrically connected with the signal processing unit, the signal processing unit comprises a relay module, a voice processing module and a signal processing module which are all electrically connected with the main control unit, and the interface unit is simultaneously electrically connected with the main control unit. The utility model realizes the functions of automatic switching of the wire telephone to the ultra-short wave radio station, wire call, voice switching, automatic off-hook/on-hook, ultra-short wave call and the like, and simultaneously can reduce personnel intervention and achieve the purpose of unattended operation. In addition, the main control unit, the relay module, the voice processing module and the signal processing module are in modularized design, and the intelligent control system has the characteristics of being strong in safety, high in reliability and good in maintainability.
Description
Technical Field
The utility model relates to the technical field of ship wireless communication, in particular to a wired/wireless switching control module.
Background
With the continuous development of satellite communication technology, satellite communication devices have been widely used. Convenient telephone communication can be carried out between land and ships (cargo ships, fishing boats, etc.) through satellites. However, because of limited space of some ships, satellite communication equipment cannot be completely covered, and land and the ships cannot be directly communicated, therefore, a wired/wireless switching control module needs to be developed, a working power supply is provided for the control module through an external power supply, and an external display module is carried at the same time, so that the problems are solved.
Disclosure of Invention
The utility model aims to provide a wired/wireless switching control module which aims at the defects of the prior art and can automatically switch a wired telephone to an ultra-short wave radio station, and the ultra-short wave communication between the land and a ship is realized through the wired telephone so as to carry out direct communication.
The technical scheme for realizing the purpose of the utility model is as follows:
the wired/wireless switching control module comprises a signal processing unit, a main control unit and an interface unit, wherein the main control unit and the interface unit are electrically connected with the signal processing unit, the signal processing unit comprises a relay module, a voice processing module and a signal processing module, the relay module, the voice processing module and the signal processing module are electrically connected with the main control unit, and the interface unit is electrically connected with the main control unit.
Further, the main control unit adopts an ARM Cortex-A7 dual-core processor.
Further, the relay module comprises a filtering rectification circuit and a DAA interface circuit which are electrically connected, and a busy tone detection circuit, an incoming call detection circuit, a DTMF encoding and decoding circuit and an MCU controller which are electrically connected with the DAA interface circuit, wherein the MCU controller is electrically connected with the busy tone detection circuit, the incoming call detection circuit and the DTMF encoding and decoding circuit at the same time, the input end of the filtering rectification circuit is connected with the interface unit, and the MCU controller is electrically connected with the main control unit at the same time.
Further, the signal processing module comprises a signal power supply circuit, and a signal amplifying module, a signal switching module and a signal conversion module which are respectively and electrically connected with the output end of the signal power supply circuit, wherein the signal amplifying module is electrically connected with the signal switching module, and the signal conversion module is simultaneously electrically connected with the relay module, an external short wave channel and the voice processing module.
Further, the signal power supply circuit is powered by TPS650250 power supply chips.
Further, the signal conversion module uses the audio codec chip TLV320AIC23BRHDR for digital-to-analog conversion.
Further, the interface unit comprises a power interface, a telephone interface, a channel interface, a telephone handle interface and an audio output interface which are all electrically connected with the signal processing module.
By adopting the technical scheme, the utility model has the following beneficial effects:
(1) The utility model connects other units together through the signal processing unit and controls the other units to work through the main control unit, and realizes the automatic switching of the wired telephone to the ultra-short wave radio station through the matching of the relay module, the voice processing module and the signal processing module, thereby realizing the functions of wired call, voice switching, automatic off-hook/on-hook, ultra-short wave call and the like, reducing personnel intervention and achieving the purpose of unattended operation. In addition, the main control unit, the signal processing unit and the interface unit adopt modularized designs, and have the characteristics of strong safety, high reliability and good maintainability.
(2) The main control unit of the utility model adopts an ARM Cortex-A7 dual-core processor, each core has a main frequency of 1GHz, and is provided with a Linux 3.4 operating system, so that the performance is excellent, and the normal operation of equipment is ensured.
(3) The relay module filters and rectifies the analog two-wire telephone signal through the filtering and rectifying circuit and then is connected into the DAA interface circuit for signal filtering, circuit protection and signal rectifying balance of the telephone interface; the DAA interface circuit is used for realizing the ringing detection, the off-hook/on-hook simulation and the two-wire/four-wire signal conversion simulation, and the busy tone detection circuit is used for detecting whether a line is in a busy tone state or not and sending a busy tone signal identification result to the MCU controller; the incoming call detection circuit is used for identifying incoming call number data of the FSK system and sending the incoming call number to the MCU controller; modulating the telephone number into a DTMF signal through a DTMF encoding and decoding circuit, and transmitting the DTMF signal to an analog telephone network through a DAA interface circuit; meanwhile, the DTMF signal transmitted by the analog telephone network can be identified, demodulated into a telephone number and the identification result is sent to the MCU controller. The MCU controller provides a UART serial port for the main control unit, and controls the DAA interface circuit to simulate off-hook/on-hook according to an off-hook instruction sent by the main control unit; controlling a DTMF coding and decoding circuit to carry out DTMF dialing according to a dialing instruction sent by the main control unit; the identification results of ringing, busy tone, incoming call number and DTMF number can also be reported to the main control unit through serial port.
(4) The signal processing module increases the driving capability of signals through the signal amplifying module, realizes the mutual transfer configuration function between analog signals through the signal switching module, and realizes the digital-to-analog conversion of four-wire analog audio signals through the signal conversion module.
(5) The utility model has abundant interface units, thereby realizing the connection with various external devices and being convenient to use.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings, in which:
FIG. 1 is a schematic block diagram of the present utility model;
FIG. 2 is a schematic block diagram of a master control unit of the present utility model;
FIG. 3 is a schematic block diagram of a relay module of the present utility model;
FIG. 4 is a circuit diagram of a signal power circuit of the present utility model;
FIG. 5 is a schematic block diagram of a signal amplifying module and a signal switching module according to the present utility model;
FIG. 6 is a schematic block diagram of a signal conversion module according to the present utility model;
fig. 7 is a circuit diagram of a signal conversion module according to the present utility model.
The reference numerals in the drawings are:
the voice communication device comprises a signal processing unit 1, a relay module 1-1, a voice processing module 1-2, a signal processing module 1-3, a main control unit 2, an interface unit 3, a power interface 3-1, a telephone interface 3-2, a channel interface 3-3, a telephone handle interface 3-4 and an audio output interface 3-5.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Example 1
The wired/wireless switching control module as shown in fig. 1 to 7 comprises a signal processing unit 1, a main control unit 2 and an interface unit 3 which are electrically connected with the signal processing unit 1, wherein the main control unit 2 controls other units to work. The signal processing unit 1 comprises a relay module 1-1, a voice processing module 1-2 and a signal processing module 1-3 which are all electrically connected with the main control unit. Through the cooperation of the relay module 1-1, the voice processing module 1-2 and the signal processing module 1-3, the automatic switching of the wired telephone to the ultra-short wave radio station is realized, and further, the functions of wired communication, voice switching, automatic off-hook/on-hook, ultra-short wave communication and the like are realized, and meanwhile, the personnel intervention can be reduced, so that the unattended purpose is achieved.
The main control unit 2 adopts an ARM Cortex-A7 dual-core processor, each core has a main frequency of 1GHz, and is provided with a Linux 3.4 operating system, so that the performance is excellent, the units form a whole, the functions of the units are fully exerted, and the normal operation of the equipment is ensured.
The interface unit 3 includes a power interface 3-1, a telephone interface 3-2, a channel interface 3-3, a telephone handle interface 3-4, and an audio output interface 3-5. The telephone interface 3-2 is a standard two-wire telephone interface, the impedance of the channel interface 3-3 is 600 omega +/-10%, the telephone handle interface 3-4 is an analog audio signal interface containing PTT signals, the telephone handle is externally connected, and the audio signal output interface 3-5 is an analog audio signal interface containing PTT signals and is externally connected with a radio station. Through setting up abundant interface unit 3 to realize the connection with various external equipment, convenient to use.
As shown in fig. 3, the relay module 1-1 includes a filter rectifying circuit, a DAA interface circuit, a busy tone detecting circuit, an incoming call detecting circuit, a DTMF codec circuit, and an MCU controller. The input end of the filtering and rectifying circuit is connected with the telephone interface 3-2, the output end of the filtering and rectifying circuit is connected with the DAA interface circuit after filtering and rectifying the analog two-wire telephone signal, and the filtering and rectifying circuit is used for signal filtering, circuit protection and signal rectifying balance of the telephone interface. The busy tone detection circuit, the incoming call detection circuit, the DTMF coding and decoding circuit and the MCU controller are electrically connected with the DAA interface circuit, and meanwhile, the busy tone detection circuit, the incoming call detection circuit and the DTMF coding and decoding circuit are electrically connected with the MCU controller. The DAA interface circuit is used for realizing the ringing detection, the off-hook/on-hook simulation and the two-wire/four-wire signal conversion simulation, and the busy tone detection circuit is used for detecting whether a line is in a busy tone state or not and sending a busy tone signal identification result to the MCU controller; the incoming call detection circuit is used for identifying incoming call number data of the FSK system and sending the incoming call number to the MCU controller; modulating the telephone number into a DTMF signal through a DTMF encoding and decoding circuit, and transmitting the DTMF signal to an analog telephone network through a DAA interface circuit; meanwhile, the DTMF signal transmitted by the analog telephone network can be identified, demodulated into a telephone number and the identification result is sent to the MCU controller. The MCU controller provides UART serial ports for the main control unit 2 to realize electric connection, and controls the DAA interface circuit to realize analog off-hook/on-hook according to off-hook and on-hook instructions sent by the main control unit 2; controlling a DTMF coding and decoding circuit to carry out DTMF dialing according to a dialing instruction sent by the main control unit 2; the identification results of ringing, busy tone, incoming call number and DTMF number can also be reported to the main control unit 2 through the serial port.
The signal processing module 1-3 comprises a signal power supply circuit, and a signal amplifying module, a signal switching module and a signal conversion module which are respectively and electrically connected with the output end of the signal power supply circuit, wherein the signal amplifying module is electrically connected with the signal switching module, and the signal conversion module is simultaneously and electrically connected with the relay module 1-1, an external short wave channel and the voice processing module 1-2.
As shown in fig. 4, the signal power supply circuit is powered by a TPS650250 power supply chip. VCC5V connects with the power interface 3-1, the peripheral power supplies provide 5V direct current power for the power chip through the power interface 3-1, when VCC5V is connected, CVDD-EN is effective, CVDD outputs +1.8V direct current power; after the CVDD outputs stably, EVDD-EN is effective, and EVDD outputs +1.2V direct current power supply; after the EVDD output is stable, DVDD-EN is effective, and DVDD outputs +3.3V direct current power supply. After the DVDD outputs stably, the power-on process of each power supply of the signal amplifying module, the signal switching module and the signal converting module is finished, and the normal operation of the signal processing modules 1-3 is ensured.
As shown in FIG. 5, the signal amplifying module adopts TL082 operational amplifying circuit to realize the amplifying treatment of analog signals such as voice input/output of the telephone handle, voice input/output of the radio station, voice input/output volume, main control input/output audio, voice output of the loudspeaker and the like, and increase the driving capability of the signals. The signal switching module adopts an 8 multiplied by 8 analog cross point switch array ADG2188 to realize the mutual transfer configuration function between analog signals such as voice input/output of a telephone handle, voice input/output of a radio station, voice input/output volume, main control input/output audio, voice output of a loudspeaker and the like.
As shown in fig. 6 and 7, the signal conversion module uses the audio codec chip TLV320AIC23BRHDR to implement digital-to-analog conversion of the four-wire analog audio signal. The processing chip in the voice processing module 1-2 configures working parameters such as sampling rate, coding mode and signal gain through control ports (20 pins and 21 pins) of the audio codec chip, after the configuration is completed, the audio codec chip receives four-wire analog audio signals (TELR) from the relay module from the analog input port (17 pins), generates digital signals after analog-to-digital conversion, and outputs the digital signals to the processing chip in the voice processing module from the digital output interface (3 pins). The processing chip processes the digital signals according to the internal application program, and the processed data are sent to a data input port (1 pin) of the audio coding and decoding chip. The audio codec chip generates analog signals after digital-to-analog conversion of the data, and outputs the analog signals from an analog output port (9 pins) to a four-wire analog audio signal receiving end (TELT) of the relay module.
In the embodiment, other units are connected together through the signal processing unit 1 and controlled to work by the main control unit 2, and the automatic switching of the wired telephone to the ultrashort wave radio station is realized through the matching of the relay module 1-1, the voice processing module 1-2 and the signal processing module 1-3, so that the functions of wired conversation, voice switching, automatic off-hook/on-hook, ultrashort wave conversation and the like are realized, the intervention of personnel can be reduced, and the unattended purpose is achieved. In addition, the main control unit, the signal processing unit, the display unit, the interface unit and the power supply unit are in modularized design, and the device has the characteristics of high safety, high reliability and good maintainability.
While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides a wired/wireless switching control module which characterized in that: the system comprises a signal processing unit, a main control unit and an interface unit, wherein the main control unit and the interface unit are electrically connected with the signal processing unit, the signal processing unit comprises a relay module, a voice processing module and a signal processing module, the relay module, the voice processing module and the signal processing module are electrically connected with the main control unit, and the interface unit is electrically connected with the main control unit.
2. The wired/wireless switching control module of claim 1, wherein: the main control unit adopts an ARM Cortex-A7 dual-core processor.
3. The wired/wireless switching control module of claim 1, wherein: the relay module comprises a filtering rectifying circuit and a DAA interface circuit which are electrically connected, and a busy tone detection circuit, an incoming call detection circuit, a DTMF encoding and decoding circuit and an MCU controller which are electrically connected with the DAA interface circuit, wherein the MCU controller is electrically connected with the busy tone detection circuit, the incoming call detection circuit and the DTMF encoding and decoding circuit at the same time, the input end of the filtering rectifying circuit is connected with the interface unit, and the MCU controller is electrically connected with the main control unit at the same time.
4. The wired/wireless switching control module of claim 1, wherein: the signal processing module comprises a signal power supply circuit, and a signal amplifying module, a signal switching module and a signal conversion module which are respectively and electrically connected with the output end of the signal power supply circuit, wherein the signal amplifying module is electrically connected with the signal switching module, the signal conversion module is simultaneously and electrically connected with the relay module and the voice processing module, and the signal power supply circuit is electrically connected with the interface unit.
5. The wired/wireless switching control module of claim 4, wherein: the signal power supply circuit is powered by TPS650250 power supply chip.
6. The wired/wireless switching control module of claim 4, wherein: the signal conversion module performs digital-to-analog conversion by using an audio codec chip TLV320AIC23 BRHDR.
7. The wired/wireless switching control module of claim 1, wherein: the interface unit comprises a power interface, a telephone interface, a channel interface, a telephone handle interface and an audio output interface which are all electrically connected with the signal processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509025.3U CN219478071U (en) | 2022-12-28 | 2022-12-28 | Wired/wireless switching control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509025.3U CN219478071U (en) | 2022-12-28 | 2022-12-28 | Wired/wireless switching control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219478071U true CN219478071U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223509025.3U Active CN219478071U (en) | 2022-12-28 | 2022-12-28 | Wired/wireless switching control module |
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| Country | Link |
|---|---|
| CN (1) | CN219478071U (en) |
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- 2022-12-28 CN CN202223509025.3U patent/CN219478071U/en active Active
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