CN104468146A - Broadcast intercom system based on IP network - Google Patents
Broadcast intercom system based on IP network Download PDFInfo
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- CN104468146A CN104468146A CN201410757929.9A CN201410757929A CN104468146A CN 104468146 A CN104468146 A CN 104468146A CN 201410757929 A CN201410757929 A CN 201410757929A CN 104468146 A CN104468146 A CN 104468146A
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Abstract
A broadcast intercom system based on an IP network comprises an IP network intercom host, an IP network intercom extension and an IP network address box, wherein the IP network intercom host, the IP network intercom extension and the IP network address box achieve mutual communication through an LAN or a WAN. The IP network intercom host comprises a first voice collecting module and a core processer integrated with a first duplex echo elimination circuit; the IP network intercom extension comprises a second voice collecting module and a core processor integrated with a second duplex echo elimination circuit. The first voice collecting module includes a first programmable amplifier; the second voice collecting module includes a third programmable amplifier. The audio sampling rate during analog-digital conversion of the first programmable amplifier and the third programmable amplifier is 32 K. According to the broadcast intercom system, the sound effect of a duplex intercom is well improved.
Description
Technical field
The present invention relates to intercommunication broadcast technology field, particularly relate to a kind of broadcast intercom system of IP based network.
Background technology
Along with the development and progress of IP network technology, intercommunication and broadcast system are thus lifted to networking, digital Platform, not only increase the stability of system, are easy to construction maintenance, more improve the extensibility of system.
But, traditional IP network intercom system and IP network broadcast system audio sample rate lower, and there is echo in duplex intercommunicating, thus cause audio undesirable.
Summary of the invention
Based on this, be necessary to provide a kind of broadcast intercom system can improving the IP based network of audio.
A broadcast intercom system for IP based network, comprises and realizes by local area network (LAN) or wide area network the IP network talk-back host, IP network interphone extension and the IP network address box that intercom mutually;
Described IP network talk-back host comprises the first voice acquisition module and is integrated with the core processor of the first duplexing echo cancellation circuit coupling, described first voice acquisition module comprises the first programmable amplifier, the second programmable amplifier, described first programmable amplifier is connected with external voice harvester, and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through the first duplexing echo cancellation circuit coupling; Described first duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice output after by echo cancellation to the IP network interphone extension of intercommunication, the voice receiving the IP network interphone extension input of intercommunication; Described second programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker;
Described IP network interphone extension comprises the second voice acquisition module and is integrated with the core processor of the second duplexing echo cancellation circuit coupling, described second voice acquisition module comprises the 3rd programmable amplifier, the 4th programmable amplifier, described 3rd programmable amplifier is connected with external voice harvester, and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through the second duplexing echo cancellation circuit coupling; Described second duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice output after by echo cancellation to the IP network talk-back host of intercommunication, the voice receiving the IP network talk-back host input of intercommunication; Described 4th programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker;
Wherein, audio sample rate when described first programmable amplifier, the 3rd programmable amplifier carry out analog-to-digital conversion is 32K.
Wherein in an embodiment, also comprise IP network broadcast intercommunication power amplifier, described IP network broadcast intercommunication power amplifier is communicated with described IP network talk-back host, IP network interphone extension and IP network address box by local area network (LAN) or wide area network, and described IP network talk-back host is for realizing control and the management of described IP network interphone extension and IP network being broadcasted to intercommunication power amplifier.
Wherein in an embodiment, described IP network broadcast intercommunication power amplifier comprises the 3rd voice acquisition module and is integrated with the core processor of the 3rd duplexing echo cancellation circuit coupling, described voice acquisition module comprises the 5th programmable amplifier, the 6th programmable amplifier, described 5th programmable amplifier is connected with external voice harvester, and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through the 3rd duplexing echo cancellation circuit coupling; Described 3rd duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice output after by echo cancellation to IP network talk-back host, the voice receiving the input of IP network talk-back host; Described 6th programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker.
Wherein in an embodiment, described first duplexing echo cancellation circuit coupling comprises first via echo cancellation module and the second tunnel echo cancellation module, one end of described first via echo cancellation module connects the first programmable amplifier of the first voice acquisition module, and the other end is provided with digital audio output interface; One end of described second tunnel echo cancellation module connects the second programmable amplifier of the first voice acquisition module, and the other end is provided with digital audio input interface.
Wherein in an embodiment, described IP network talk-back host, IP network interphone extension and IP network broadcast intercommunication power amplifier includes interlock expansion module, for being connected with third-party platform by TCP.
Wherein in an embodiment, described interlock expansion module is used for providing Web service, TCP instruction, UDP instruction, RS485 interface, switching value interface.
Wherein in an embodiment, described IP network talk-back host is equipped with IP network interphone extension the image capture module be connected with core processor, and described image capture module is for connecting outside high-definition camera to realize two-way high definition video intercom effect.
Wherein in an embodiment, described IP network talk-back host is more than 1, and each IP network talk-back host is for the IP network interphone extension controlled with manage more than 1.
Wherein in an embodiment, described IP network broadcast intercommunication power amplifier comprises USB interface, SD card interface and built-in MP3 player, is respectively used to external USB flash disk, SD card and plays MP3 format file.
Wherein in an embodiment, described IP network talk-back host also comprises alarm signal receiver module, for receiving the alarm signal of described IP network interphone extension.
In the broadcast intercom system of above-mentioned IP based network, described IP network talk-back host and IP network interphone extension comprise the first voice acquisition module respectively and are integrated with the core processor of the first duplexing echo cancellation circuit coupling, second voice acquisition module and be integrated with the core processor of the second duplexing echo cancellation circuit coupling, described first voice acquisition module and the second voice acquisition module comprise the first programmable amplifier and the 3rd programmable amplifier respectively, audio sample rate when described first programmable amplifier and the 3rd programmable amplifier carry out analog-to-digital conversion is 32K, which enhance audio sample rate, and eliminate the echo of duplex intercommunicating, improve audio well.
Accompanying drawing explanation
Fig. 1 is the Organization Chart of the broadcast intercom system of IP based network in an embodiment;
Fig. 2 is the functional block diagram of middle IP network talk-back host embodiment illustrated in fig. 1;
Fig. 3 is the functional block diagram of middle IP network interphone extension embodiment illustrated in fig. 1;
Fig. 4 is the functional block diagram of middle IP network broadcast intercommunication power amplifier embodiment illustrated in fig. 1;
Fig. 5 is the functional block diagram of middle IP network address box embodiment illustrated in fig. 1;
Fig. 6 is the first duplexing echo cancellation circuit coupling module diagram in an embodiment.
Embodiment
Please refer to Fig. 1, is the Organization Chart of the broadcast intercom system of IP based network in an embodiment.
The broadcast intercom system of this IP based network comprises and realizes by local area network (LAN) or wide area network the IP network talk-back host 110, IP network interphone extension 120, IP network broadcast intercommunication power amplifier 130 and the IP network address box 140 that intercom mutually.Wherein, IP network talk-back host 110 is for realizing control and the management of IP network interphone extension 120 and IP network being broadcasted to intercommunication power amplifier 130.
Incorporated by reference to Fig. 2, it is the functional block diagram of middle IP network talk-back host embodiment illustrated in fig. 1.
Operational monitoring module 112, image capture module 113, first voice acquisition module 114, supply module 115, the expansion module 116 that links, data transmission module 117, display module 118 and data memory module 119 that IP network talk-back host 110 comprises core processor 111 and is connected with core processor 111.
Core processor 111 is integrated with the first duplexing echo cancellation circuit coupling, voice acquisition module 114 comprises the first programmable amplifier, the second programmable amplifier, described first programmable amplifier is connected with external voice harvester (as miaow head), and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through described first duplexing echo cancellation circuit coupling.Described first duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice that the voice output after by echo cancellation inputs to the IP network interphone extension 120 of the IP network interphone extension 120 of intercommunication, reception intercommunication.Described second programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker.
Be appreciated that in other embodiments, IP network talk-back host 110 also comprises alarm signal receiver module, for receiving the alarm signal of described IP network interphone extension.
Incorporated by reference to Fig. 3, it is the functional block diagram of middle IP network interphone extension embodiment illustrated in fig. 1.
Operational monitoring module 122, image capture module 123, second voice acquisition module 124, supply module 125, the expansion module 126 that links, data transmission module 127 and data memory module 128 that IP network interphone extension 120 comprises core processor 121 and is connected with core processor 121.
Core processor 121 is integrated with the second duplexing echo cancellation circuit coupling, second voice acquisition module 124 comprises the 3rd programmable amplifier, the 4th programmable amplifier, described 3rd programmable amplifier is connected with external voice harvester (as miaow head), and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through described second duplexing echo cancellation circuit coupling.Described second duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice that the voice output after by echo cancellation inputs to the IP network talk-back host 110 of the IP network talk-back host 110 of intercommunication, reception intercommunication.Described 4th programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker.
Incorporated by reference to Fig. 4, it is the functional block diagram of middle IP network broadcast intercommunication power amplifier embodiment illustrated in fig. 1.
Operational monitoring module 132, power amplifier module 133, the 3rd voice acquisition module 134, supply module 135, the expansion module 136 that links, data transmission module 137 and data memory module 138 that IP network broadcast intercommunication power amplifier 130 comprises core processor 131 and is connected with core processor 131.
IP network broadcast intercommunication power amplifier 130 also comprises USB interface, SD card interface and built-in MP3 player, is respectively used to external USB flash disk, SD card and plays MP3 format file.
Core processor 121 is integrated with the 3rd duplexing echo cancellation circuit coupling, 3rd voice acquisition module 124 comprises the 5th programmable amplifier, the 6th programmable amplifier, described 5th programmable amplifier is connected with external voice harvester (as miaow head), and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through described 3rd duplexing echo cancellation circuit coupling.Described 3rd duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice that the voice output after by echo cancellation inputs to the IP network talk-back host 110 of the IP network talk-back host 110 of intercommunication, reception intercommunication.Described 6th programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker.
In the embodiment shown in Fig. 2 ~ Fig. 4, audio sample rate when the first above-mentioned programmable amplifier, the 3rd programmable amplifier, the 5th programmable amplifier carry out analog-to-digital conversion is 32K.Above-mentioned image capture module (113,123) is for connecting outside high-definition camera to realize two-way high definition video intercom effect.
In addition, above-mentioned interlock expansion module (116,126,136) is by TCP (Transmission ControlProtocol, transmission control protocol) be connected with third-party platform, for providing Web service, TCP instruction, UDP (User Datagram Protocol, User Datagram Protocol) instruction, RS485 interface, switching value interface, realize interphone extension 120 alarm calls, and the first-class function of high-definition camera that synchronous unlatching correspondence image acquisition module is external.
Incorporated by reference to Fig. 5, it is the functional block diagram of IP network address box in an embodiment.
Operational monitoring module 142, supply module 143, data transmission module 144 and data memory module 145 that IP network address box 140 comprises core processor 141 and is connected with core processor 141.
Please refer to Fig. 6, is the first duplexing echo cancellation circuit coupling module diagram in an embodiment.
In the present embodiment, this first duplexing echo cancellation circuit coupling comprises first via echo cancellation module 150 and the second tunnel echo cancellation module 160, one end of described first via echo cancellation module is for connecting the first programmable amplifier of the first voice acquisition module, and the other end of described first via echo cancellation module is provided with digital audio output interface; One end of described second tunnel echo cancellation module is for connecting the second programmable amplifier of the first voice acquisition module, and the other end of described second tunnel echo cancellation module is provided with digital audio input interface.
Be appreciated that, accordingly, second duplexing echo cancellation circuit coupling comprises the 3rd tunnel echo cancellation module and the 4th tunnel echo cancellation module, one end of described 3rd tunnel echo cancellation module is for connecting the 3rd programmable amplifier of the second voice acquisition module, and the other end of described 3rd tunnel echo cancellation module is provided with digital audio output interface; One end of described 4th tunnel echo cancellation module is for connecting the 4th programmable amplifier of the second voice acquisition module, and the other end of described 4th tunnel echo cancellation module is provided with digital audio input interface.
3rd duplexing echo cancellation circuit coupling comprises the 5th tunnel echo cancellation module and the 6th tunnel echo cancellation module, one end of described 5th tunnel echo cancellation module is for connecting the 5th programmable amplifier of the 3rd voice acquisition module, and the other end of described 5th tunnel echo cancellation module is provided with digital audio output interface; One end of described 6th tunnel echo cancellation module is for connecting the 5th programmable amplifier of the 3rd voice acquisition module, and the other end of described 6th tunnel echo cancellation module is provided with digital audio input interface.
Further, in other embodiments, in the broadcast intercom system of IP based network, plural IP network talk-back host can also be comprised, and each IP network talk-back host is for the IP network interphone extension controlled with manage more than 1.Further, each IP network talk-back host can realize the escrow function of the IP network interphone extension to another IP network talk-back host control and management.
In the broadcast intercom system of above-mentioned IP based network, described IP network talk-back host and IP network interphone extension comprise the first voice acquisition module respectively and are integrated with the core processor of the first duplexing echo cancellation circuit coupling, second voice acquisition module and be integrated with the core processor of the second duplexing echo cancellation circuit coupling, described first voice acquisition module and the second voice acquisition module comprise the first programmable amplifier and the 3rd programmable amplifier respectively, audio sample rate when described first programmable amplifier and the 3rd programmable amplifier carry out analog-to-digital conversion is 32K, which enhance audio sample rate, and eliminate the echo of duplex intercommunicating, improve audio well.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a broadcast intercom system for IP based network, is characterized in that, comprises and realizes by local area network (LAN) or wide area network the IP network talk-back host, IP network interphone extension and the IP network address box that intercom mutually;
Described IP network talk-back host comprises the first voice acquisition module and is integrated with the core processor of the first duplexing echo cancellation circuit coupling, described first voice acquisition module comprises the first programmable amplifier, the second programmable amplifier, described first programmable amplifier is connected with external voice harvester, and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through the first duplexing echo cancellation circuit coupling; Described first duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice output after by echo cancellation to the IP network interphone extension of intercommunication, the voice receiving the IP network interphone extension input of intercommunication; Described second programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker;
Described IP network interphone extension comprises the second voice acquisition module and is integrated with the core processor of the second duplexing echo cancellation circuit coupling, described second voice acquisition module comprises the 3rd programmable amplifier, the 4th programmable amplifier, described 3rd programmable amplifier is connected with external voice harvester, and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through the second duplexing echo cancellation circuit coupling; Described second duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice output after by echo cancellation to the IP network talk-back host of intercommunication, the voice receiving the IP network talk-back host input of intercommunication; Described 4th programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker;
Wherein, audio sample rate when described first programmable amplifier, the 3rd programmable amplifier carry out analog-to-digital conversion is 32K.
2. the broadcast intercom system of IP based network according to claim 1, it is characterized in that, also comprise IP network broadcast intercommunication power amplifier, described IP network broadcast intercommunication power amplifier is communicated with described IP network talk-back host, IP network interphone extension and IP network address box by local area network (LAN) or wide area network, and described IP network talk-back host is for realizing control and the management of described IP network interphone extension and IP network being broadcasted to intercommunication power amplifier.
3. the broadcast intercom system of IP based network according to claim 2, it is characterized in that, described IP network broadcast intercommunication power amplifier comprises the 3rd voice acquisition module and is integrated with the core processor of the 3rd duplexing echo cancellation circuit coupling, described voice acquisition module comprises the 5th programmable amplifier, the 6th programmable amplifier, described 5th programmable amplifier is connected with external voice harvester, and for the voice of collection being carried out analog-to-digital conversion, signal amplifies and carries out echo cancellation through the 3rd duplexing echo cancellation circuit coupling; Described 3rd duplexing echo cancellation circuit coupling comprises digital audio output interface and digital audio input interface, is respectively used to the voice output after by echo cancellation to IP network talk-back host, the voice receiving the input of IP network talk-back host; Described 6th programmable amplifier is connected with external loudspeaker, and the voice for echo cancellation circuit coupling being received carry out digital-to-analogue conversion, power amplification exporting through external loudspeaker.
4. the broadcast intercom system of the IP based network according to any one of claims 1 to 3, it is characterized in that, described first duplexing echo cancellation circuit coupling comprises first via echo cancellation module and the second tunnel echo cancellation module, one end of described first via echo cancellation module connects the first programmable amplifier of the first voice acquisition module, and the other end is provided with digital audio output interface; One end of described second tunnel echo cancellation module connects the second programmable amplifier of the first voice acquisition module, and the other end is provided with digital audio input interface.
5. the broadcast intercom system of IP based network according to claim 2, is characterized in that, described IP network talk-back host, IP network interphone extension and IP network broadcast intercommunication power amplifier includes interlock expansion module, for being connected with third-party platform by TCP.
6. the broadcast intercom system of IP based network according to claim 5, is characterized in that, described interlock expansion module is used for providing Web service, TCP instruction, UDP instruction, RS485 interface, switching value interface.
7. the broadcast intercom system of IP based network according to claim 1, it is characterized in that, described IP network talk-back host is equipped with IP network interphone extension the image capture module be connected with core processor, and described image capture module is for connecting outside high-definition camera to realize two-way high definition video intercom effect.
8. the broadcast intercom system of IP based network according to claim 1, is characterized in that, described IP network talk-back host is more than 1, and each IP network talk-back host is for the IP network interphone extension controlled with manage more than 1.
9. the broadcast intercom system of IP based network according to claim 1, it is characterized in that, described IP network broadcast intercommunication power amplifier comprises USB interface, SD card interface and built-in MP3 player, is respectively used to external USB flash disk, SD card and plays MP3 format file.
10. the broadcast intercom system of IP based network according to claim 1, is characterized in that, described IP network talk-back host also comprises alarm signal receiver module, for receiving the alarm signal of described IP network interphone extension.
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