CN203368504U

CN203368504U - Remote voice conversation system

Info

Publication number: CN203368504U
Application number: CN 201320298685
Authority: CN
Inventors: 井上雅登; 胡永平; 向权
Original assignee: Qing Liu Hot Electronic (shenzhen) Co Ltd; Tsing Liu Electronic Technology (chongqing) Co Ltd
Current assignee: Qing Liu Hot Electronic (shenzhen) Co Ltd; Tsing Liu Electronic Technology (chongqing) Co Ltd
Priority date: 2013-05-28
Filing date: 2013-05-28
Publication date: 2013-12-25
Anticipated expiration: 2023-05-28

Abstract

The utility model discloses a remote voice conversation system. The remote voice conversation system comprises a plurality of interphone Ad Hoc networks based on radio communication, wherein each interphone Ad Hoc network comprises a host interphone and a plurality of slave interphones, which is characterized in that: the host interphone in each interphone Ad Hoc network is respectively connected with a computer in the Internet network by one audio line, remote voice conversation can be performed among the slave interphones of different interphone Ad Hoc networks. The remote voice conversation system has the following obvious effects that: the network topology structure is simple, the system is very conveniently assembled and disassembled, the Internet network is masterfully combined with the radio communication, so as to perform the remote low-cost voice communication capable of freely moving in a certain range.

Description

The remote speech conversational system

Technical field

The utility model relates to a kind of voice communication system, specifically, is the remote speech conversational system that a kind of Internet-based mixes mutually with radio communication.

Background technology

Voice communication technology comparative maturity on current the Internet, relevant application software is also very many, and remote speech or Video chat are all well applied.But all application all must be based upon by computer, want to realize that expansion more freely also is difficult to realize, also there are some inconvenience under some special screne.Although mobile communication can solve corresponding problem, owing to using mobile network, cost compare costliness.

Although intercom can be realized short-range mobile communication, and communications cost is cheaper, and transmission range is limited again.

Want to realize voice communication remote, that low-cost, mobility is strong, also have certain difficulty.

The utility model content

In order to address the above problem, the utility model proposes a kind of remote speech conversational system, cleverly the Internet and radio communication are combined, realize voice communication remote, low-cost and that can move freely within the specific limits.

For achieving the above object, the technical scheme that the utility model adopts is as follows:

A kind of remote speech conversational system, comprise a plurality of intercom MANETs based on radio communication, each intercom MANET is by a main frame and Duo Tai slave machine, its key is: the main frame in described intercom MANET and slave are full duplex voice communication intercom, mainly by power module, microprocessor, speech processing module and 2.4G radio-frequency communication module form, be connected with microphone on speech processing module, loud speaker and audio interface, be connected with antenna on the 2.4G radio-frequency communication module, adopt I2S two-way connection of bus between speech processing module and microprocessor, adopt between microprocessor and 2.4G radio-frequency communication module that spi bus is two-way to be connected, audio interface on main frame in each intercom MANET is connected with the audio interface of computer in the Internet network by tone frequency channel wire respectively.

Because intercom can be matched to the MANET an of this locality mutually, by a main frame is set, the audio-frequency information of intercom is sent in computer, utilize the chat software of computer maturation to realize remote transmission, the computer of the other end is given local main frame by corresponding transmission of speech information again, finally by main frame, by radiofrequency signal, be forwarded to other slaves, thereby realize cleverly the remote speech session, because intercom can adopt public free frequency range, corresponding communications cost is also cheaper, and radio communication, mobility also is met.

Further describe, be connected with potentiometer with switch on microprocessor, described potentiometer with switch is both for controlling the on/off of power module, again for regulating the speech volume of speech processing module.

Further describe again, be connected with LED indicating module, button keys module and channel and select module on microprocessor, described LED indicating module is used to indicate voice and receives/send out state, described button keys module is for realizing the pairing between intercom, and described channel selects module for regulating the wireless channel of 2.4G radio-frequency communication module.

As preferably, microprocessor is arm processor, and the chip model is STM32F103RE, and speech processing module mainly adopts speech chip WM8974, and the 2.4G radio-frequency communication module mainly adopts the nRF24L01+ radio transmitting and receiving chip.

Remarkable result of the present utility model is: network topology structure is simple, mounts and dismounts very conveniently, cleverly the Internet and radio communication is combined, and has realized remote speech communication remote, low-cost and that can move freely within the specific limits.

The accompanying drawing explanation

Fig. 1 is network topological diagram of the present utility model;

Fig. 2 is the network topological diagram of intercom MANET;

Fig. 3 is the schematic block circuit diagram of intercom.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model and operation principle are described in further detail.

As shown in Figure 1, a kind of remote speech conversational system, comprise a plurality of intercom MANETs based on radio communication, each intercom MANET is by a main frame and Duo Tai slave machine, main frame in each intercom MANET is connected with the computer in the Internet network by tone frequency channel wire respectively, between the slave in different intercom MANETs and slave, can realize the remote speech session.

As shown in Figure 2, in order to meet the requirement of real-time of voice communication, main frame in described intercom MANET and slave are full duplex voice communication intercom, mainly by power module 1, microprocessor 6, speech processing module 7 and 2.4G radio-frequency communication module 8 form, be connected with microphone 9 on speech processing module 7, loud speaker 10 and audio interface 11, be connected with antenna 12 on 2.4G radio-frequency communication module 8, adopt I2S two-way connection of bus between speech processing module 7 and microprocessor 6, adopt between microprocessor 6 and 2.4G radio-frequency communication module 8 that spi bus is two-way to be connected, realize the full duplex voice communication by the microprocessor 6 described speech processing module 7 of control and 2.4G radio-frequency communication module 8.

Main frame is connected with the audio frequency I/O port of computer by audio interface 11, and the audio interface of slave can inject the headset use, also can between utilize microphone 9 and loud speaker 10 to work.

In implementation process, be connected with potentiometer with switch 2 on microprocessor 6, by the knob of rotary switch potentiometer 2, adjusting that can volume, when being screwed into minimum point, power supply that can also shutdown system, as mains switch.

Be connected with LED indicating module 3, button keys module 4 and channel and select module 5 on microprocessor 6, LED indicating module 3 is used to indicate voice and receives/send out state, during energising work, indicator light is lighted, and when emission state, indicator light is red, during accepting state, is green.Button keys module 4 is for realizing the pairing between intercom, and 2.4G radio-frequency communication module 8 is provided with 16 wireless channels, and channel selects module 5 to realize the selection of channel.

As preferably, microprocessor 6 is arm processor, and the chip model is STM32F103RE, the main speech chip WM8974 that adopts of speech processing module 7,2.4G the main nRF24L01+ radio transmitting and receiving chip that adopts of radio-frequency communication module 8, chip performance is stable, and antijamming capability is strong.

As shown in Figure 3, due to the Internet network and the radio communication related protocol limited, in the intercom MANET, a main frame can keep at most carrying out full-duplex communication with five slaves, other slaves can only keep receiving mode, the voice messaging of Receiving Host broadcast.When can mating by the intercom networking, the selection of slave mode of operation selected.

Operation principle of the present utility model is:

First utilize button keys module 4 and channel to select module 5 that main frame and slave are matched to an intercom MANET, the speech processing module 7 of slave is obtained voice messaging by microphone 9, through AD sampling and speech coding, upload in microprocessor 6, realize protocol conversion and data encapsulation by microprocessor 6, finally after being modulated by 2.4G radio-frequency communication module 8, by antenna 12, sent, antenna 12 also can receive airborne wireless signal, upload to microprocessor 6 after 8 demodulation of 2.4G radio-frequency communication module, by microprocessor 6, unpack and processing passes back to speech processing module 7, after speech processing module 7 decodings, by loud speaker 10, broadcasted.

Main frame is as a transferring equipment, pass through antenna 12 on one side to each slave receiving and transmitting voice information, another side passes through audio interface 11 to computer receiving and transmitting voice information, computer can realize that by ripe chat software remote speech is mutual, the main frame of remote computer end can be realized the transmission of voice messaging according to identical control principle, finally reaches the purpose of remote speech session.

Claims

1. a remote speech conversational system, comprise a plurality of intercom MANETs based on radio communication, each intercom MANET is by a main frame and Duo Tai slave machine, it is characterized in that: the main frame in described intercom MANET and slave are full duplex voice communication intercom, mainly by power module (1), microprocessor (6), speech processing module (7) and 2.4G radio-frequency communication module (8) form, be connected with microphone (9) on speech processing module (7), loud speaker (10) and audio interface (11), be connected with antenna (12) on 2.4G radio-frequency communication module (8), adopt I2S two-way connection of bus between speech processing module (7) and microprocessor (6), adopt between microprocessor (6) and 2.4G radio-frequency communication module (8) that spi bus is two-way to be connected, audio interface (11) on main frame in each intercom MANET is connected with the audio interface of computer in the Internet network by tone frequency channel wire respectively.

2. remote speech conversational system according to claim 1, it is characterized in that: be connected with potentiometer with switch (2) on microprocessor (6), described potentiometer with switch (2) is both for controlling the on/off of power module (1), again for regulating the speech volume of speech processing module (7).

3. remote speech conversational system according to claim 1, it is characterized in that: be connected with LED indicating module (3), button keys module (4) and channel and select module (5) on microprocessor (6), described LED indicating module (3) is used to indicate voice and receives/send out state, described button keys module (4) is for realizing the pairing between intercom, and described channel selects module (5) for regulating the wireless channel of 2.4G radio-frequency communication module (8).

4. remote speech conversational system according to claim 1, it is characterized in that: microprocessor (6) is arm processor, the chip model is STM32F103RE, speech processing module (7) mainly adopts speech chip WM8974, and 2.4G radio-frequency communication module (8) mainly adopts the nRF24L01+ radio transmitting and receiving chip.