CN211152008U - Wired intercom terminal and telephone - Google Patents

Abstract

The utility model relates to the technical field of wired intercom, and provides a wired intercom terminal, comprising a control unit, a telephone interface module and a power carrier module, wherein the power carrier module is connected with the control unit; the telephone interface module receives the control The unit sends and receives control signals and receives the audio signal transmitted by the control unit. The telephone interface module receives the pick-up or on-hook detection instruction from the control unit and feeds back the pick-up or on-hook detection signal to the control unit. The telephone interface module also receives the pick-up or on-hook from the control unit. Control signal; the telephone interface module is connected to a microphone. A telephone is also provided, including the above-mentioned wired intercom terminal. The utility model uses the power carrier technology to transmit signaling in the power line without adding wires, so that the function and connection speed of the terminal are qualitatively improved compared with the "analog telephone technology plus power amplifier", and the "2B+D digital" is solved. "Phone chips are in the obsolete period" due to the high cost or inability to produce them.

Description

Wired intercom terminals and telephones

technical field

The utility model relates to the technical field of wired intercom, in particular to a wired intercom terminal and a telephone.

Background technique

At present, there are three main wired intercom terminal solutions: 1. Analog phone technology plus power amplifier; 2. 2B+D digital phone technology plus power amplifier; 3. IP phone technology plus power amplifier. Among them, scheme 1: copper cable communication distance of 4Km, a pair of telephone lines, a pair of power lines (for power amplifier), because there is no signaling channel, the call connection speed is in seconds. Although the cost is low, it can only complete voice calls, not It is suitable for large factories and mines such as metallurgy, chemical industry, and ports; scheme 2: copper cable communication distance is 4Km, a pair of telephone lines (1W-3W), more than 3W plus a pair of telephone lines, with signaling channels, call connection speed in milliseconds , it can also transmit control signaling and other information during the call. This method is most suitable for large factories and mines such as metallurgy, chemical industry, and ports. However, the 2B+D digital phone chip is in the phase of elimination, and the cost is relatively high; the final solution 3: network cable transmission The distance is 0.1Km, and control signaling and other information can also be transmitted during the call. Compared with Schemes 1 and 2, the communication distance of 100 meters is more difficult to deploy in industrial and mining enterprises, and the overall cost is similar to that of Scheme 2.

Utility model content

The purpose of this utility model is to provide a wired intercom terminal and a telephone, without adding wires, using the power carrier technology to transmit signaling in the power line, so that the function and connection speed of the terminal are relatively "analog telephone technology plus power amplifier". The qualitative improvement solves the problem of high cost or inability to produce caused by "2B+D digital phone chips are in the phase of elimination".

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions: a wired intercom terminal, including a control unit and a telephone interface module controlled by the control unit, and also including a power supply line that provides a channel for a transmission protocol. a carrier module, the power carrier module is connected to the control unit; the telephone interface module receives the sending and receiving control signals of the control unit and receives the audio signal transmitted by the control unit, and the telephone interface module receives the The off-hook or on-hook detection instruction of the control unit is fed back to the control unit. The telephone interface module also receives the off-hook or on-hook control signal of the control unit; the telephone interface module is connected with a microphone.

Further, an external amplifier module is also included, and the external amplifier module receives the output signal of the telephone interface module and the output signal of the control unit respectively.

Further, the external amplifier module includes a power amplifier and a horn speaker, the power amplifier receives the output signal of the telephone interface module and the output signal of the control unit respectively, and the horn speaker receives the signal of the power amplifier.

Further, it also includes a display module for displaying the current terminal state or key information, and the display module receives the output signal of the control unit.

Further, a button module for terminal manipulation is also included, and the control unit receives an output signal of the button module.

Further, it also includes a serial port and an I/O port module for signal transmission. The serial port and I/O port module receives the output signal of the control unit and feeds back the signal to the serial port and I/O port module.

Further, a power supply module for voltage transformation is also included, and the power supply module is connected to any line of the current terminal.

The embodiment of the present utility model provides another technical solution: a telephone, comprising a wired intercom host, and also includes the above-mentioned wired intercom terminal, wherein the wired intercom terminal is connected to the wired intercom host through a connecting line, so The connecting lines mentioned above are telephone lines and power lines.

Further, there are a plurality of wired intercom terminals, and the plurality of wired intercom terminals are all connected to the wired intercom host through the connecting line.

Further, the wired intercom host has a power carrier module corresponding to the power carrier module of the wired intercom terminal, and the power carrier module of the wired intercom host and the power carrier module of the wired intercom terminal pass through a communication line. connect.

Compared with the prior art, the beneficial effect of the present utility model is: without adding wires, the power carrier technology is used to transmit signaling in the power line, so that the function and connection speed of the terminal are better than those of "analog telephone technology plus power amplifier". The improvement of quality has solved the problem of high cost or inability to produce caused by "2B+D digital phone chips are in the phase of elimination".

Description of drawings

1 is a block diagram of a wired intercom terminal provided by an embodiment of the present invention;

2 is a block diagram of a telephone provided by an embodiment of the present invention;

In the reference numerals: 1-telephone interface module; 2-power supply module; 3-control unit; 4-power carrier module; 5-serial port and I/O module; 6-button module; 7-display module; 8-power amplifier ; 9-horn speaker; 10-microphone; 11-microphone.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1:

Referring to FIG. 1, an embodiment of the present invention provides a wired intercom terminal, including a control unit 3 and a telephone interface module 1 controlled by the control unit 3. In addition to the above two existing modules, the terminal also includes a The power carrier module 4 that provides the channel of the transmission protocol on the power line, the power carrier module 4 is connected to the control unit 3; the telephone interface module 1 receives the sending and receiving control signals of the control unit 3 and receives the control The audio signal transmitted by the unit 3, the telephone interface module 1 receives the off-hook or on-hook detection instruction of the control unit 3 and feeds back the off-hook or on-hook detection signal to the control unit 3, and the telephone interface module 1 also receives the The pick-up or on-hook control signal of the control unit 3; the telephone interface module 1 is connected with a microphone 10. Previously, 2B+D digital phone chips could solve the problems of calls, transmission control signals and other information in large factories and mines such as metallurgy, chemical industry, and ports, but now 2B+D digital phone chips are in the phase of elimination, their price is high, and Faced with a shutdown, a low-cost alternative is needed that won’t compromise performance. The wired intercom terminal must be connected to the wired intercom host to realize the intercom function. The wired intercom host is a dedicated telephone exchange device. In addition to providing basic telephone exchange functions, it also has professional wired intercom functions, including single call, group There must be related protocols and software to realize these functions, the host and terminal must follow the protocol to realize the dedicated functions, the transmission protocol must have channels, and the 2B+D digital telephone technology has a dedicated D channel. Therefore, a power carrier mode is used to provide a transmission protocol channel on the power line of the terminal in this embodiment, so as to facilitate communication with the host, and the power carrier module adopts BSC6823. As for the control unit 3 and the telephone interface module 1, they are both common modules in the prior art. The telephone interface module 1 has the basic functions of an ordinary telephone, and the control unit 3 is the brain of the terminal, which is a common chip in the field. W78E058DDG chip, this chip is an eight-bit microcontroller, it can convert the user's operation into signaling and send it to the host, control the telephone interface module 1 to execute the corresponding instructions, receive the signaling sent by the host to control the telephone interface module 1 and the corresponding Module, the signal intercommunication between the control unit 3 and the telephone interface module 1 can be connected through the pins for etc., are very common transmission and control, and will not be introduced in detail here. The microphone 10 is composed of a microphone 11 and an earphone. The microphone 11 completes the acoustic-electrical conversion, and the earphone completes the electro-acoustic conversion.

As an optimized solution of the embodiment of the present invention, please refer to FIG. 1 , the terminal further includes an external amplifier module, and the external amplifier module receives the output signal of the telephone interface module 1 and the output signal of the control unit 3 respectively. In addition to the above-mentioned communication with the microphone 10, the communication method can also be an external mode. An external amplifier module is used to receive the signal output by the telephone interface module 1 and the control unit 3, such as a voice signal, and then the external amplifier module outputs the voice signal. put, this method is the hands-free function of the telephone in the prior art, which is a conventional technology. Preferably, the external amplifier module includes a power amplifier 8 and a horn speaker 9, the power amplifier 8 receives the output signal of the telephone interface module 1 and the output signal of the control unit 3 respectively, and the horn speaker 9 receives all the The signal of the power amplifier 8, wherein the power amplifier 8 amplifies the audio signal power by 5-25W, and the horn speaker 9 converts the electrical signal to audio and plays it out, these are all using the conventional parts and components in this area to realize the function, here is also not. The specific working principle and structure will be described in detail.

As an optimized solution of the embodiment of the present invention, please refer to FIG. 1 , the terminal further includes a display module 7 for displaying the current terminal state or key information, and the display module 7 receives the output signal of the control unit 3 . Preferably, the terminal further includes a button module 6 for terminal manipulation, and the control unit 3 receives the output signal of the button module 6 . Preferably, the terminal further includes a serial port and an I/O port module for signal transmission, the serial port and I/O port module receive the output signal of the control unit 3 and feed back the signal to the serial port and I/O port module. Preferably, the terminal further includes a power supply module 2 for voltage transformation, and the power supply module 2 is connected to any line of the current terminal. In this embodiment, the display module 7 receives the output signal of the control unit 3 and displays it, and the display method is conventional in the art. For example, the button module 6 is the input interface of the control terminal, and it receives the input signal and transmits it to the control unit 3 . The function of the serial port and I/O module 5 is to transmit the signal of the instrument or sensor near the terminal to the corresponding server through the wired intercom terminal and the host. Power module 2 converts 48V into 5V and 12V.

Embodiment 2:

Please refer to FIG. 1 and FIG. 2, an embodiment of the present invention provides a telephone, including a wired intercom host and the above-mentioned wired intercom terminal, the wired intercom terminal is connected to the wired intercom host through a connecting line, so The connecting lines mentioned above are telephone lines and power lines. In this embodiment, the wired intercom terminal is connected to the intercom host with two pairs of lines, a pair of telephone lines transmits voice, a pair of power lines supplies power, and uses power carrier technology to transmit signaling. Preferably, there are a plurality of wired intercom terminals, and the plurality of wired intercom terminals are all connected to the wired intercom host through the connecting line. Preferably, the wired intercom host has a power carrier module corresponding to the power carrier module of the wired intercom terminal, and the power carrier module of the wired intercom host communicates with the power carrier module of the wired intercom terminal. line connection. The power supply line of the terminal in this embodiment provides a transmission protocol channel in a power carrier manner, so as to facilitate communication with the host. As for the control unit 3 and the telephone interface module 1, they are both common modules in the prior art. The telephone interface module 1 has the basic functions of an ordinary telephone, and the control unit 3 is the brain of the terminal. It is a common chip in the field. Convert the user's operation into signaling and send it to the host, control the telephone interface module 1 to execute the corresponding instructions, and receive the signaling sent by the host to control the telephone interface module 1 and the corresponding module, the signal between the control unit 3 and the telephone interface module 1 The intercommunication can be connected through the corresponding pins, and the functions implemented are conventional technologies in the field, such as audio signal transmission, off-hook/on-hook signal detection, off-hook/on-hook control, etc., which are all very common transmission and control. No further details. The microphone 10 is composed of a microphone 11 and an earphone. The microphone 11 completes the acoustic-electrical conversion, and the earphone completes the electro-acoustic conversion.

As for other modules, the content of the first embodiment can be directly cited, and details are not repeated in this embodiment.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a wired terminal of talkbacking, includes the control unit and by the telephone interface module of the control unit control, its characterized in that: the power carrier module is used for providing a channel of a transmission protocol on a power line and is connected with the control unit; the telephone interface module receives a receiving and sending control signal of the control unit and receives an audio signal transmitted by the control unit, receives an on-hook or off-hook detection instruction of the control unit and feeds back an on-hook or off-hook detection signal to the control unit, and also receives an on-hook or off-hook control signal of the control unit; the telephone interface module is connected with a microphone.

2. The wired intercom terminal according to claim 1, wherein: the telephone interface module also comprises an external module which respectively receives the output signal of the telephone interface module and the output signal of the control unit.

3. The wired intercom terminal according to claim 2, wherein: the external amplifier module comprises a power amplifier and a horn loudspeaker, the power amplifier receives the output signal of the telephone interface module and the output signal of the control unit respectively, and the horn loudspeaker receives the signal of the power amplifier.

4. The wired intercom terminal according to claim 1, wherein: the terminal also comprises a display module used for displaying the current terminal state or key information, and the display module receives the output signal of the control unit.

5. The wired intercom terminal according to claim 1, wherein: the terminal also comprises a key module for the terminal to control, and the control unit receives the output signal of the key module.

6. The wired intercom terminal according to claim 1, wherein: the control unit also comprises a serial port and I/O port module for signal transmission, wherein the serial port and I/O port module receives the output signal of the control unit and feeds back the signal to the serial port and I/O port module.

7. The wired intercom terminal according to claim 1, wherein: the power supply module is connected to any line of the current terminal.

8. A telephone comprising a wired intercom host, characterized by: the wired intercom terminal according to any one of claims 1 to 7, further comprising a connecting line, wherein the wired intercom terminal is connected with the wired intercom host through the connecting line, and the connecting line is a telephone line and a power line.

9. The telephone of claim 8, wherein: the wired talkback terminals are multiple and are connected with the wired talkback host through the connecting wires.

10. The telephone of claim 8, wherein: the wired talkback host computer is provided with a power carrier module corresponding to the power carrier module of the wired talkback terminal, and the power carrier module of the wired talkback host computer is connected with the power carrier module of the wired talkback terminal through a communication line.

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