CN211959306U - Fixed telephone voice box - Google Patents

Abstract

The utility model provides a fixed-line voice box, including CPU, phone sound detection chip, two audio number receiving chip, phone two audio number dialing chip, TTS conversion chip and analog telephone line interface chip, CPU passes through phone two audio number dialing chip and TTS conversion chip to analog telephone line interface chip transmission data, analog telephone line interface chip passes through phone sound detection chip and two audio number receiving chip to CPU transmission data, CPU is connected with phone sound detection chip and ethernet communication interface. The fixed-line voice box is mature, stable and reliable in technology and is not influenced by factors such as wireless signal strength, secret-related factors and the like; by adopting a TTS text-to-speech technology, the standard speech playing is realized, and the playing reliability is high; and an internet TCP/IP protocol stack is adopted, so that the transmission rate is high and the service efficiency is high.

Description

Fixed telephone voice box

Technical Field

The utility model relates to an electronic communication device especially relates to a fixed line pronunciation box.

Background

According to the requirements of the environmental dynamic monitoring industry, the more important the customers need to acquire the alarm real-time information, and in many occasions, for example: the requirements of the user on the real-time acquisition of the monitoring alarm information are not reduced due to the requirements of secret, factors that mobile signals are not good and factors that no mobile signals exist in remote areas. In view of the above requirements, conventional apparatuses and schemes for transmitting monitoring alarm information via wireless technology have short application. Through the development of telecommunication communication for many years, the fixed-line communication technology is basically covered in place, and the alarm information transmission equipment based on the fixed-line communication has a better application environment for a transmission medium. The traditional fixed-line communication technical means is combined with the TTS (text to speech) new technology at the present stage, and then the user can dial the telephone of the corresponding user through the fixed telephone by using the Ethernet internet technology, and the real-time listening of the user monitoring alarm information is realized through the TTS voice broadcasting technology, so that the corresponding monitoring alarm can be arranged and processed in real time.

The traditional fixed telephone voice system is used in the solution, and the fixed telephone voice system is characterized by mature technology and has the problem that the technology is more lagged and is marginalized gradually.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fixed telephone voice box has solved following problem:

(1) the wireless channel has the problems of unstable signals and no signals in many places or many unit items do not allow information transmission in a wireless mode due to secret-related factors, and the fixed telephone is basically fully covered and has better controllability of fixed telephone;

(2) the monitoring alarm information of the data center is edited into characters through platform software, and the monitoring alarm information cannot be sent in a wireless mode to be seen by a party, so that the monitoring alarm information needs to be broadcasted to a user in a voice mode through a text-to-voice mode TTS;

(3) a software platform of the data center is established on an Ethernet local area network or an Internet cloud platform, a TCP/IP protocol does not have a fixed-line voice call function, and the conversion function of the TCP/IP protocol and voice broadcasting needs to be realized in a protocol conversion mode.

The technical scheme is as follows:

a fixed-line voice box comprises a CPU, a telephone tone detection chip, a double-audio number receiving chip, a telephone double-audio dialing chip, a TTS conversion chip and an analog telephone line interface chip, wherein the CPU transmits data to the analog telephone line interface chip through the telephone double-audio dialing chip and the TTS conversion chip, the analog telephone line interface chip transmits data to the CPU through the telephone tone detection chip and the double-audio number receiving chip, and the CPU is connected with the telephone tone detection chip and an Ethernet communication interface.

The CPU adopts an iMAX28X chip of ARM 9.

The CPU is connected with an Ethernet communication interface through an MII interface, and downloads data through the Ethernet interface, and the Ethernet communication interface adopts a DP8384 chip.

The CPU is connected with a telephone sound detection chip through a universal asynchronous receiver-transmitter, and the electric voice detection chip adopts an STC15W204S chip.

The fixed telephone dual-tone dialing chip adopts an MT8880CS chip.

The dual-tone number receiving chip adopts a dual-tone receiving MT8880CS chip.

The TTS conversion chip adopts an M26 chip.

The analog telephone line interface chip employs a DB107S chip.

The fixed-line voice box has the following advantages:

(1) the traditional telephone voice exchange technology is adopted, the technology is mature, stable and reliable, and is not influenced by factors such as wireless signal strength, secret-related factors and the like;

(2) by adopting a TTS character-to-speech technology, the standard speech playing is realized, the speech speed is uniform, the sound is clear, the influence of a speech region is avoided, and the playing reliability is high;

(3) by adopting an internet TCP/IP protocol stack, the network universality is good, the bandwidth is large enough, the transmission rate is high, and the service efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of the fixed-line voice box;

FIG. 2 is a schematic diagram of pins of the Ethernet MII interface of the CPU core board;

FIG. 3 is a schematic diagram of the MII interface of the Ethernet interface chip DP 8384;

FIG. 4 is a schematic diagram of the Ethernet transformer interface;

FIG. 5 is a diagram of a parallel interface between a dual tone dialing chip and a single chip of a fixed telephone;

FIG. 6 is a schematic view of a serial interface between a dual tone dialing chip and a single chip microcomputer of the fixed-line telephone;

FIG. 7 is a schematic diagram of a parallel interface of a dual audio number receiving chip and a single chip microcomputer;

FIG. 8 is a schematic view of a serial interface between a dual audio number receiving chip and a single chip;

FIG. 9 is a schematic diagram of a detection circuit employed by the telephone tone detection chip;

FIG. 10 is a circuit schematic of a TTS conversion chip;

fig. 11 is a circuit schematic of an analog telephone line interface.

Detailed Description

As shown in fig. 1, the fixed-line voice box includes a CPU101, a phone tone detection chip 103, a dual-tone number receiving chip 104, a phone dual-tone dialing chip 105, a TTS conversion chip 106, and an analog phone line interface chip 107, where the CPU101 transmits data to the analog phone line interface chip 107 through the phone dual-tone dialing chip 105 and the TTS conversion chip 106, the analog phone line interface chip 107 transmits data to the CPU101 through the phone tone detection chip 103 and the dual-tone number receiving chip 104, and the CPU101 is connected to the phone tone detection chip 103 and the ethernet communication interface 102.

Specifically, the method comprises the following steps:

the CPU101 is connected to the ethernet communication interface 102 via an MII interface and downloads data via this ethernet interface.

The CPU101 is connected with the telephone tone detection chip 103 through a universal asynchronous receiving and transmitting transmitter (serial port) for data interaction, and the telephone tone detection in the telephone tone detection chip 103 comprises dial tone, busy tone, ring back tone, off-hook and on-hook.

The CPU101 is connected with the dual-audio number receiving chip 104 through a universal asynchronous receiving and transmitting transmitter (serial port) to carry out data interaction;

the CPU101 is connected with a telephone dual-tone dialing chip 105 through a universal asynchronous receiving and transmitting transmitter (serial port) to carry out data interaction;

the CPU101 is connected with a TTS conversion chip 106 through a universal asynchronous receiving and transmitting transmitter (serial port) for data interaction;

the TTS conversion chip 106 is connected with the analog telephone line interface chip 107 through a voice analog interface and a capacitance coupling to carry out analog data interaction;

the telephone dual-tone dialing chip 105 is connected with the analog telephone line interface chip 107 through a capacitor coupling through an analog interface to perform analog data interaction;

the dual-audio number receiving chip 104 is connected with the analog telephone line interface chip 107 through a capacitor coupling through an analog interface to perform analog data interaction;

the electric voice detection chip 103 is connected with the analog telephone line interface chip 107 through a capacitance coupling through an analog interface to perform analog data interaction.

In one embodiment, the components are described as follows:

as shown in fig. 2, fig. 3 and fig. 4, the CPU101 adopts a core board with a core of CPU-iMAX 28X of freescale corporation with ARM9 as a kernel, and is a CPU supporting a linux operating system, and can form a minimum core system of the technical solution, and an MII interface (3/4/5/36/37 pin, level 3.3V) of an external PHY ethernet interface chip DP8384 is connected through an MII interface (53/54/55/56/60 pin, level 3.3V), and now interfaces with the external and ethernet internet are connected, and a TCP/IP protocol stack is supported, so that TCP protocol data from the ethernet can be analyzed, and data communication and control can be performed through a plurality of serial ports, internal protocols and related modules. Therefore, the functions of Ethernet TCP/IP link, protocol data transmission, protocol data analysis and analysis, fixed telephone dialing module dialing control and TTS playback control are realized.

As shown in fig. 5 and 6, the dual audio frequency dialing chip 105 of the fixed telephone adopts an MT8880CS chip, which is a dual audio frequency dialing chip, and is connected to a parallel bus (14/15/16/17 pin, level 3.3V) of the single chip microcomputer, receives a telephone number sent by the CPU core module through a serial port (19/20 pin, level 3.3V) of the STC15W2K60S2 chip of the single chip microcomputer, and controls the dual audio frequency dialing chip to perform the dual audio frequency dialing operation through the parallel bus. The function of controlling off-hook and carrying out double-tone dialing by the Ethernet TCP/IP transceiving protocol data conversion module according to the telephone number which is sent by the internal protocol and needs to be dialed is realized.

As shown in fig. 7 and 8, the dual audio number receiving chip 104 adopts a dual audio receiving MT8880CS chip, receives dual audio keys on a line, connects to a parallel bus (14/15/16/17 pin, level 3.3V) of a single chip microcomputer, and sends a CPU core module through a serial port (19/20 pin, level 3.3V) of a STC15W2K60S2 chip of the single chip microcomputer, so as to monitor the dual audio keys pressed by an opposite terminal under the condition that the opposite terminal is off-hook, and transmit the dual audio keys to an ethernet TCP/IP transceiving protocol data conversion module according to an internal protocol.

As shown in fig. 9, the voice detection chip 103(STC15W204S) counts every 5S of the waveform (digital signal, level 3.3V) of the voice signal from the telephone line (450HZ frequency) by using the single chip microcomputer, and distinguishes the telephone line status (dial tone, busy tone, ring back tone, off hook, on hook) by counting, and transmits the status to the CPU core module through the serial port (9/10 pin, digital signal, level 3.3V) of the single chip microcomputer.

As shown in fig. 10, the TTS conversion chip 106(M26 chip) adopts a TTS text-to-speech chip, receives a text-to-speech text code sent from the CPU module through a serial port (17/18 pin, level 3.3V), and starts speech conversion to play speech on a telephone line. After the other side is off-hook, the translated words are converted into voice by the Ethernet TCP/IP transceiving protocol data conversion module and then played to a user through a telephone line.

As shown in fig. 11, the analog telephone line interface chip 107 uses a DB107S chip to implement matching and interfacing with the voice switch interface. The telephone line access circuit is designed according to the performance index of the telephone exchange interface, and supports the input of the telephone line DC 48V.

The ethernet communication interface 102 adopts an MII interface, and performs ethernet data interaction with the CPU chip according to a protocol, thereby implementing the interaction of ethernet data.

The fixed-line voice box has the following advantages: (1) the traditional telephone voice exchange technology is adopted, the technology is mature, stable and reliable, and is not influenced by factors such as wireless signal strength, secret-related factors and the like; (2) by adopting a TTS character-to-speech technology, the standard speech playing is realized, the speech speed is uniform, the sound is clear, the influence of a speech region is avoided, and the playing reliability is high; (3) by adopting an internet TCP/IP protocol stack, the network universality is good, the bandwidth is large enough, the transmission rate is high, and the service efficiency is high.

Claims (8)

1. A fixed-line voice box, comprising: the CPU transmits data to the analog telephone line interface chip through the telephone dual-tone dialing chip and the TTS conversion chip, the analog telephone line interface chip transmits data to the CPU through the telephone tone detection chip and the dual-tone number receiving chip, and the CPU is connected with the telephone tone detection chip and the Ethernet communication interface.

2. A fixed-line voice box according to claim 1, wherein: the CPU adopts an iMAX28X chip of ARM 9.

3. A fixed-line voice box according to claim 1, wherein: the CPU is connected with an Ethernet communication interface through an MII interface, and downloads data through the Ethernet interface, and the Ethernet communication interface adopts a DP8384 chip.

4. A fixed-line voice box according to claim 1, wherein: the CPU is connected with a telephone sound detection chip through a universal asynchronous receiver-transmitter, and the electric voice detection chip adopts an STC15W204S chip.

5. A fixed-line voice box according to claim 1, wherein: the telephone dual-tone dialing chip adopts an MT8880CS chip.

6. A fixed-line voice box according to claim 1, wherein: the dual-tone number receiving chip adopts a dual-tone receiving MT8880CS chip.

7. A fixed-line voice box according to claim 1, wherein: the TTS conversion chip adopts an M26 chip.

8. A fixed-line voice box according to claim 1, wherein: the analog telephone line interface chip employs a DB107S chip.

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