CN108600869A - A kind of mixing intercom system and method for supporting public network intercommunication, private network talkback and digital intercom - Google Patents

Abstract

The invention relates to a hybrid intercom system supporting public network intercom, private network intercom and digital intercom, which includes the intercom voice information generated and sent by the voice information input module; The intercom voice information ID coding and software encryption are converted into different formats suitable for public network, private network and digital intercom transmission and sent simultaneously by the data transmission module; the data decryption and decoding format conversion module Perform ID code checking and software decryption on the intercom voice information, and transmit the inconsistent intercom voice information to the voice data output module for listening; and clean up the consistent results of the check; the voice information storage module stores all Said intercom voice information received by the voice data output module and its ID code archive and when receiving a new message, transmit the stored ID code list to the data decryption decoding format conversion module for checking.

Description

A hybrid intercom system supporting public network intercom, private network intercom and digital intercom and method

technical field

The invention relates to the intercom field of communication equipment, in particular to a general-purpose hybrid intercom system and method that simultaneously supports public network intercom, private network intercom and digital intercom.

Background technique

With the continuous innovation of communication technology, more and more communication devices have intercom function. The current intercom implementation usually includes three methods: software intercom realized through the public network, also known as public network intercom; intercom realized through private network, also known as private network intercom; and applicable to Small intercom range, point-to-multipoint or point-to-point digital intercom through the antenna of the device itself, and the digital intercom can also use repeaters to achieve greater intercom coverage.

However, since the above three intercoms transmit and receive voice information through different processing methods, and have different intercom coverage and use conditions, the transmission and reception of voice information between various intercoms is very complicated. , and the timeliness is poor. At present, the following methods are mainly used for improvement:

Existing technology 1: Use communication equipment with both hard and soft intercom functions to realize the combination of soft and hard intercom. Users can choose to use soft intercom or hard intercom according to usage conditions and intercom distance, or turn on Intercom and hard intercom; obviously, because the soft and hard intercom systems are independent of each other, there is a problem of asynchronous sending and receiving of voice information; and during the switching process of the soft and hard intercom, the user has the problem of not receiving information in time , if the soft and hard intercom are turned on at the same time, there will be a problem of repeatedly receiving intercom information; in addition, in order to ensure that the voice information is sent out, the user usually needs to turn on the soft intercom for a voice transmission, and at the same time need to turn on the hard intercom for a voice Sending, the operation is cumbersome, and the user experience is poor.

Existing technology 2: Intercommunication between soft and hard intercom is realized through the relay gateway. After the relay gateway receives the voice information sent by the soft intercom communication device, it converts it into an intercom in a format acceptable to the hard intercom communication device through the relay gateway. Speak and send the voice information, so as to realize the reception of the soft intercom voice information by the hard intercom communication device; conversely, the intercom voice information sent by the hard intercom communication device can also be received by the soft intercom communication device in the same way; Due to the need for a large number of relay gateways, the cost is high, and it is difficult to cover a large area; at the same time, the relay gateway needs to perform data conversion, so there is a problem of information transmission delay. The difference between the soft and hard intercom systems also makes intercom users Simultaneous intercoms and data conflicts occur during the intercom; in addition, the data conversion and transmission of the relay gateway is realized through the frequency channel, so a lot of manual work is required to switch and maintain the frequency channel.

Based on the above analysis, it is necessary to propose a hybrid intercom system and method that simultaneously supports public network intercom, private network intercom and digital intercom to solve the above problems in the prior art.

Contents of the invention

The present invention makes improvements to the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the present invention is to provide a hybrid intercom system that supports public network intercom, private network intercom and digital intercom, so as to solve the problems of the prior art The problem of unsynchronized, untimely and repeated reception of the intercom voice information existing in the first one; and the solution to the operation that exists because the user needs to send the same voice information separately in the soft and hard intercom to ensure the reception of the intercom object Trouble and poor user experience; also solve the problem of high cost of setting a large number of relay gateways in the prior art 2, and the problem of receiving delay in data conversion and transmission through the relay gateway; The intercom system is different, and there is a data conflict problem when the intercommunication between software and hardware is realized through the relay gateway.

A hybrid intercom system supporting public network intercom, private network intercom and digital intercom, which includes: a voice data input module, a data encryption and encoding format conversion module, a data transmission module, and a data decryption and decoding format conversion module, a voice data output module and a voice information storage module;

The voice data input module generates intercom voice information to be sent;

The data encryption and encoding format conversion module performs ID encoding and software encryption on the intercom voice information, and then performs format conversion on the intercom voice information;

The data transmission module transmits, transmits and receives the intercom voice information processed by the data encryption and encoding format conversion module through three paths of public network intercom, private network intercom and digital intercom at the same time ;

The data decryption decoding format conversion module performs ID decoding and software decryption on the intercom voice information received by the data transmission module, and checks the ID code of the intercom voice information with the voice information ID code archived by the system , and the intercom voice information inconsistent with the checking result is sent to the voice data output module; at the same time, the checking result is consistent and discarded and cleaned up;

The voice data output module receives and listens to the intercom voice information;

The voice information storage module systematically archives the intercom voice information received by the voice data output module and its ID code, and when the data decryption decoding format conversion module receives the new intercom voice information, The voice information storage module transmits the stored ID code list to the data decryption, decoding, format conversion module for ID code checking.

A hybrid intercom method supporting public network intercom, private network intercom and digital intercom, said method comprising the following steps:

S1 generates intercom voice information;

S2 performs ID encoding and software encryption processing on the intercom voice information;

S3 performs format conversion on the intercom voice information;

S4 sends the intercom voice information processed by S3;

S5 receives the intercom voice information sent by S4 and performs decryption processing and ID code checking;

S6 receives and listens to the intercom voice information checked by S5;

The S7 system stores the intercom voice information received and listened to in S6 and its ID code.

The beneficial effects produced by the present invention are:

Because the hybrid intercom system that supports public network intercom, private network intercom and digital intercom provided by the present invention uses the data encryption plus code format conversion module to process the intercom voice information sent by the user, including ID encoding and Software encryption, and process the intercom voice information into three voice information in three formats with the same ID code and password, so as to be respectively applicable to the reception requirements of public network intercom, private network intercom and digital intercom, and synchronize at the same time Sending can ensure that the intercom object can receive information in time no matter which intercom mode is turned on, and the intercom object can carry out voice information recognition through the data decryption decoding format conversion module after receiving, so as to ensure that the intercom The correct reception of voice information; at the same time, it is also considered that the intercom object has two or three intercom modes. At this time, the intercom object will receive the corresponding two or three intercom voice information, because the two There is a time difference in the reception of one or three pieces of intercom voice information, and have the same ID code and password. The present invention will give priority to playing the first piece of intercom voice information received, and for the subsequently received ones with the same ID code and password The intercom voice information is directly discarded and cleaned up; it can be seen that the beneficial effects of the present invention include: a unified intercom group system is established without being limited to the inconsistency of the intercom mode; the data encryption and encoding format conversion module and the data decryption The setting of the decoding format conversion module ensures the safe, timely and correct reception of the intercom voice information by the transmitter; the same intercom voice information is synchronized in three ways at one time, which is simple and fast without delay.

Another beneficial effect that the present invention produces is:

Because the mixed intercom method supporting public network intercom, private network intercom and digital intercom provided by the present invention carries out ID coding and software encryption on the intercom voice information, simultaneously processes the intercom voice information into Three pieces of voice information in three formats with the same ID code and password are applicable to the receiving requirements of public network intercom, private network intercom and digital intercom respectively, and are sent synchronously at the same time, which can ensure In the intercom mode, the information can be received in time, and the intercom object can realize the identification of the intercom voice information by ID code checking and decryption of the intercom voice information after receiving it, so as to ensure that the intercom The correct reception of voice information; thereby solving the problem of asynchronous, untimely and repeated reception of the intercom voice information existing in the prior art one; The problem of troublesome operation and poor user experience in sending; at the same time, it also solves the problems of high cost, delay in information conversion, transmission and reception, and data conflicts in the second prior art using a relay gateway.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the present invention will be further introduced below in conjunction with the accompanying drawings.

Fig. 1 is a block diagram of a hybrid intercom system supporting public network intercom, private network intercom and digital intercom according to the present invention.

Fig. 2 is a step diagram of a hybrid intercom method supporting public network intercom, private network intercom and digital intercom according to the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention more clear, a hybrid intercom system and method supporting public network intercom, private network intercom and digital intercom will be further described below in conjunction with the accompanying drawings and specific embodiments. illustrate.

What needs to be explained in advance is that the present invention mainly lies in integrating the three widely used intercom modes at present, and proposes a unified hybrid intercom system and method that is not limited to the intercom mode; in the specific implementation process, The main consideration is that the formats of the intercom audio files received by the public network intercom, private network intercom and digital intercom are different. At the same time, for the same intercom audio file, the above three intercom The transmission and reception speeds are also different.

Embodiment one

Please refer to FIG. 1 , which is a block diagram of a hybrid intercom system supporting public network intercom, private network intercom and digital intercom according to the present invention.

The system includes:

A voice data input module 1, a data encryption and encoding format conversion module 2, a data transmission module 3, a data decryption decoding format conversion module 4, a voice data output module 5 and a voice information storage module;

Described voice data input module 1 produces the intercom voice information that needs to send;

After the data encryption and encoding format conversion module 2 carries out ID encoding and software encryption to the intercom voice information, and then performs format conversion on the intercom voice information;

The data transmission module 3 transmits and receives the intercom voice information processed by the data encryption and encoding format conversion module 2 through three paths of public network intercom, private network intercom and digital intercom at the same time. ;

The data decryption decoding format conversion module 4 performs ID decoding and software decryption on the intercom voice information received by the data transmission module 3, and encodes the ID code of the intercom voice information and the ID code of the voice information archived by the system Check, and send the intercom voice information that is inconsistent with the check result to the voice data output module 5; simultaneously discard and clean up the check result that is consistent;

The voice data output module 5 receives the intercom voice information and listens to it;

Said voice information storage module 6 carries out system archiving of said intercom voice information and its ID code received by said voice data output module 5, and receives new said intercom voice at said data decryption decoding format conversion module 4 information, the voice information storage module 6 transmits the stored ID code list to the data decryption, decoding, format conversion module 4 for ID code checking.

It should be noted that all users covered in the intercom group need to install the hybrid intercom system that supports public network intercom, private network intercom and digital intercom according to the present invention. The sending and receiving of voice information is also limited to the user groups covered by the system.

In the hybrid intercom system of the present invention, in the process of sending the voice intercom information, firstly, the intercom voice information generated by the user is given information encoding and software encryption via the data encryption and encoding format conversion module 2 , and in the receiving process of the voice intercom information, the decoding and software decryption are implemented through the data decryption decoding format conversion module 4, and the software encryption and software decryption are automatically produced by the hybrid intercom system of the present invention, and are regularly updated and switched ,, in addition, since the data transmission module 3 in the present invention transmits the intercom voice information with the three paths of public network intercom, private network intercom and digital intercom at the same time, if the intercom object is opened at the same time, there will be If two or more intercom modes are used, the corresponding amount of intercom voice information will be received respectively. At this time, the problem of repeated listening to the information may occur. In order to avoid this situation, the present invention uses the data decryption and decoding format The conversion module 4 extracts the first received intercom voice information from the intercom voice information received by the intercom object end with the same ID code and software encryption password, and sends it to the voice data output module for further processing. Playing, the same described intercom voice information received after clearing simultaneously effectively overcomes the problem of repeated playback of intercom information; The archived voice information ID code is checked. When the intercom voice information is received for the first time among multiple repeated intercom voice information, there is no corresponding voice information ID code in the system at this time, so it is judged The intercom voice information is received first; and once the intercom voice information is sent to the voice data output module 5 for listening and playing, then the voice information storage module 6 will store and store The intercom voice information and its ID code are fed back to the data decryption decoding format conversion module 4; when the data decryption decoding format conversion module 4 receives the same intercom voice information again, there is a corresponding The voice information ID is coded, and the intercom voice information judged to be repeated is directly discarded and cleared.

It should also be noted that the software encryption of the intercom voice information in the present invention is for the security of the intercom voice information, and only members belonging to the intercom group where the intercom user is located , and the hybrid intercom system that supports public network intercom, private network intercom and digital intercom is installed at the same time, it can be realized that the intercom voice information can be performed on the intercom voice information sender The software automatically encrypts, and at the same time, the receiver of the intercom voice information realizes that the intercom voice information is automatically decrypted by software; ID coding is to consider the situation that the receiver of the intercom voice information simultaneously opens more than one intercom mode And set, under this kind of situation, the receiving party will successively receive more than one said intercom voice information matching with said intercom mode, and at this moment, it is determined whether it is the same said intercom voice information through the checking of ID coding, In this way, it is possible to listen to the first received piece of intercom voice information and discard the later received intercom voice information, so as to avoid repeated playback of the same intercom voice information.

Further, during the implementation process of the data encryption and encoding format conversion module 2, it specifically includes performing ID encoding and software encryption on the intercom voice information, and assigning the ID encoding and software encryption password to the intercom voice information , thus being transmitted as a whole packet.

It is worth mentioning that as long as they are all intercom users belonging to the hybrid intercom system described in the present invention, the entire implementation process is automatically realized by the system, and what users experience is the sending and receiving of intercom information, and this Sending and receiving are not limited to the intercom mode currently used by the user, as long as the user turns on any one of public network intercom, private network intercom and digital intercom, but is limited by public network coverage, private network coverage and digital In addition to the point-to-point distance of the intercom, all intercom information can be received in a timely and accurate manner; thereby realizing a hybrid intercom mode that can achieve information synchronization and simple operation.

Further, considering that in the actual information sending and receiving process of public network intercom, private network intercom and digital intercom, the processing of the intercom voice information is different, that is to say, the same intercom Voice information, in different intercom modes, needs to be processed into different file formats for sending and receiving; in a specific application of the present invention, the data encryption and encoding format conversion module 2 also includes converting the intercom voice information Three pieces of voice information are processed in three formats, namely the voice information in the format that meets the requirements of private network intercom, the voice information in the format that meets the requirements of public network intercom, and the voice information in the format that meets the requirements of digital intercom; The intercom voice information of ID code and software encryption password is processed into three pieces of voice information in three formats to match the format requirements of public network intercom, private network intercom and digital intercom in information transmission and reception respectively.

Matching with the processing of the intercom voice information by the voice code adding module 2, the data transmission module 3 correspondingly includes:

A data sending sub-module 31, which sends three intercom voice messages with different formats simultaneously;

A data transmission sub-module 32, comprising,

Relying on the private network to transmit the intercom voice information that meets the format required by the private network for intercom;

Relying on a public network server to transmit the intercom voice information meeting the format required by the public network intercom; and

Relying on the point-to-point mode to directly transmit the intercom voice information in a format that meets the digital intercom requirements;

A data receiving sub-module 33 receives the intercom voice information in a corresponding format according to different intercom modes, and transmits the intercom voice information to the data decryption decoding format conversion module 4 .

In addition, in order to ensure the timeliness of the same intercom voice information reaching each intercom target, the data transmission module simultaneously transmits three pieces of the intercom voice information in the three formats.

Further, the data decryption and decoding format conversion module 4 also includes receiving the ID code and software encryption password set by the data encryption and encoding format conversion module 2, and the voice information ID code archived by the system in the data decryption and decoding format conversion module 4 Provided by the voice information storage module 6, so that it can check the ID code of the received intercom voice information to determine whether it is the intercom voice information that has been played.

For the voice information receiver, there are multiple situations:

If the receiver of the voice information only turns on a kind of intercom mode, it will only receive the only one piece of the intercom voice information that matches its intercom mode, and after software decryption and ID code checking, the data will be decrypted and decoded The format conversion module 4 will extract the intercom voice information and transmit it to the voice data output module 5;

If the receiver of the intercom voice information has opened two or three intercom modes at the same time, due to the difference in transmission and reception speeds of the intercom voice information due to public network intercom, private network intercom and digital intercom At this time, the voice information receiver will successively receive two or three pieces of intercom voice information with the same content but different formats, and after software decryption and ID code checking, confirm the ID code of the intercom voice information Whether exists in the voice information ID coding of system archives, the described intercom voice information that does not have same ID code is sent to described voice data output module 5; Automatically clean up and delete.

It is worth noting that in the mixed intercom system supporting public network intercom, private network intercom and digital intercom described in this application, the voice data input module 1 and the data encryption and encoding format conversion module 2 , and the functions of the data sending sub-module 31 in the data transmission module 3 are all automatically completed in the device of the sender of the intercom voice information by the hybrid intercom system of the present application, and the data transmission module The function of the data transmission sub-module 32 in 3 is then carried out data transmission by the transmission path that the public network, private network and digital intercom rely on; the data receiving sub-module 33 in the data transmission module 3, The functions of the data decryption and decoding format conversion module 4 and the voice data output module 5 are automatically completed by the device of the recipient of the intercom voice information by the hybrid intercom system of the present application.

It should be noted that, in order to ensure that the intercom voice information is not omitted, in the hybrid intercom system according to the present invention, the data encryption and coding format conversion module 2 is still receiving the intercom voice information from the voice data input module 1. After speaking the voice information, set up a sending backup, specifically by setting up a database in the system, which is dedicated to storing all the intercom voice information that the user needs to send, so as to prevent information from being missed when the network is not good, so that the system can Under the condition that the network allows, the intercom voice information that the user has not sent is reissued; meanwhile, the present invention also sets a receiving backup in the data decryption decoding format conversion module 4, and stores the information received from all paths related to the user. Relevant intercom voice information, in case the reception is missed.

Obviously, compared with the comparison file, the present invention processes the intercom voice information and sends it simultaneously according to the format requirements of public network intercom, private network intercom and digital intercom, which can ensure the technical reception of all intercom users, It overcomes the problems in the comparison document 1, such as the transmission and reception of intercom voice information being out of sync, untimely, and repeated reception for different intercom modes, and the problems of transmission and reception delays and data conflicts in the comparison document 2; The entire processing process of the intercom voice information in the invention is realized by the hybrid intercom system of the present invention. For the user, it is only sending and receiving the intercom voice information, thus solving the common problem in the first and second comparison documents. There are problems of troublesome operation and poor user experience.

A hybrid intercom system that supports public network intercom, private network intercom, and digital intercom described in this application has been described in detail above. The following will describe a hybrid intercom system that supports public network intercom and private network intercom described in this application. The hybrid intercom method of speaking and digital intercom will be further explained. The two are independent of each other, but they are related to each other in terms of technical ideas, and the description of the hybrid intercom method in the present invention is briefly described. to understand the hybrid intercom system described above.

Embodiment two

This embodiment is proposed based on Embodiment 1. The essential difference from Embodiment 1 lies in the difference in the format conversion mode of the data encryption and encoding format conversion module. Therefore, except for the format conversion part of the intercom voice information, The other parts are understood with reference to the first embodiment, and when specific distinctions are made, the symbol ' of the first embodiment is used to indicate the difference.

In this embodiment, the data encryption and encoding format conversion module 2' processes the intercom voice information into a general data format that satisfies the three intercom modes of public network, private network and digital intercom at the same time. The data transmission module 3' performs data sending, transmission and reception.

Specifically, the data transmission module 3' includes:

A data sending sub-module 31', which sends the intercom voice information in a common data format;

A data transmission sub-module 32', which transmits the intercom voice information with a common format via public network, private network and point-to-point mode;

A data receiving sub-module 33' receives the intercom voice information in a common data format according to different intercom modes, and transmits the intercom voice information to the data decryption decoding format conversion module 4'.

It should be noted that after the intercom voice information is processed into a common data format, due to differences in the transmission and reception methods adopted by the public network, private network and digital intercom, there will be a time difference between transmission and reception. Specifically, during the data transmission process of the data transmission module 3', when the intercom sender sends the intercom voice information through the data transmission sub-module 31', the data transmission sub-module 32' The different transmission methods of public network, private network and digital intercom will be transmitted respectively; for the intercom receiver receiving the intercom voice information through the data receiving sub-module 33', and the way of subsequent processing is the same as that of the embodiment One is the same.

Embodiment Three

Please refer to accompanying drawing 2, which is a diagram illustrating steps of a hybrid intercom method supporting public network intercom, private network intercom and digital intercom.

The method described in this embodiment is mainly based on the current problem of complex intercom voice information conversion between public network intercom, private network intercom and digital intercom, considering the switching between the three intercom modes and the intercom It is an improvement proposed because the transmission and reception method of voice information between different intercom modes is relatively complicated; therefore, this method proposes an intercom mode that is not limited to users, and can realize timely and accurate intercom voice information , Fast, synchronous transmission and reception hybrid intercom method.

Described method specifically comprises the following steps:

S1 generates intercom voice information;

S2 performs ID encoding and software encryption processing on the intercom voice information;

S3 performs format conversion on the intercom voice information;

S4 sends the intercom voice information processed by S3;

S5 receives the intercom voice information sent by S4 and performs decryption processing and ID code checking;

S6 receives and listens to the intercom voice information checked by S5;

The S7 system stores the intercom voice information received and listened to in S6 and its ID code.

Further, in consideration of the inconsistency of the applicable intercom voice information formats among the current public network intercom, private network intercom and digital intercom, in step S3, the following sub-steps are also performed simultaneously:

S31 processes the intercom voice information into a format that meets the requirements of private network intercom;

S32 processes the intercom voice information into a format that meets public network intercom requirements;

S33 processes the intercom voice information into a format that meets digital intercom requirements.

Further, corresponding to step S3, in step S4, the following sub-steps are also executed simultaneously:

S41 sends the intercom voice information conforming to the format required by the private network via the private network;

S42 Send the intercom voice information in a format that meets the public network intercom requirements via the public network server;

S43 Send the intercom voice information in a format conforming to digital intercom requirements via a point-to-point mode.

Further, considering that the intercom object may open two or three intercom modes at the same time, in this case, the intercom object will receive the same intercom voice information twice or three times, in order to avoid the same intercom Speaking of repeated reception and playback of voice information, the present invention also sets the following sub-steps in step S5:

S51 receiving the intercom voice information sent in step S4;

S52 judges whether the ID coding of the intercom voice information is repeated with the voice information ID coding that the system has archived,

If so, enter S53;

If not, go to S6;

S53 discards and clears the intercom voice information.

In the hybrid intercom method described in this embodiment, the security of the intercom voice information is ensured by encrypting and decoding the intercom voice information; and when the intercom object receives the same intercom voice information multiple times In this case, the first received one is firstly extracted for playback, and the last received one is discarded and cleaned up, avoiding the problem of repeated playback.

With the continuous improvement of technology, step S3 can also be improved in format conversion, and the intercom voice information can be processed into a common data format compatible with public network, private network and digital intercom transmission and reception modes.

A hybrid intercom system and method that supports public network intercom, private network intercom and digital intercom has been described in detail above in conjunction with the accompanying drawings, but the design ideas of the present invention are not limited to the implementation methods described in the embodiments. Based on the technical idea, the implementation method can be expanded and changed. Therefore, any implementation scheme derived from the idea of this application should belong to the protection category of the present invention.

Claims (12)

1. A hybrid intercom system that supports public network intercom, private network intercom and digital intercom, is characterized in that it includes: a voice data input module, a data encryption plus code format conversion module, a data transmission module, a data Decryption and decoding format conversion module, a voice data output module and a voice information storage module; The voice data input module generates intercom voice information to be sent; The data encryption and encoding format conversion module performs ID encoding and software encryption on the intercom voice information, and then performs format conversion on the intercom voice information; The data transmission module transmits, transmits and receives the intercom voice information processed by the data encryption and encoding format conversion module through three paths of public network intercom, private network intercom and digital intercom at the same time ; The data decryption decoding format conversion module performs ID decoding and software decryption on the intercom voice information received by the data transmission module, and checks the ID code of the intercom voice information with the voice information ID code archived by the system , and the intercom voice information inconsistent with the checking result is sent to the voice data output module; at the same time, the checking result is consistent and discarded and cleaned up; The voice data output module receives and listens to the intercom voice information; The voice information storage module systematically archives the intercom voice information received by the voice data output module and its ID code, and when the data decryption decoding format conversion module receives the new intercom voice information, The voice information storage module transmits the stored ID code list to the data decryption, decoding, format conversion module for ID code checking. 2. The hybrid intercom system supporting public network intercom, private network intercom and digital intercom as claimed in claim 1, wherein the format conversion of the data encryption and encoding format conversion module includes converting the intercom Voice information is processed in three formats, namely voice information in a format that meets the requirements of private network intercom, voice information in a format that meets the requirements of public network intercom, and voice information in a format that meets the requirements of digital intercom. 3. The hybrid intercom system supporting public network intercom, private network intercom and digital intercom as claimed in claim 2, wherein the intercom voice information in the three formats has the same ID code and software Encrypt passwords, and send, transmit and receive data through the data transmission module. 4. The hybrid intercom system supporting public network intercom, private network intercom and digital intercom as claimed in claim 3, wherein the data transmission module comprises: A data sending sub-module, which sends three intercom voice messages with different formats at the same time; A data transmission sub-module, including, Relying on the private network to transmit the intercom voice information that meets the format required by the private network for intercom; Relying on a public network server to transmit the intercom voice information meeting the format required by the public network intercom; and Relying on the point-to-point mode to directly transmit the intercom voice information in a format that meets the digital intercom requirements; A data receiving sub-module receives the intercom voice information in a corresponding format according to different intercom modes, and transmits the intercom voice information to the data decryption decoding format conversion module. 5. The hybrid intercom system supporting public network intercom, private network intercom and digital intercom as claimed in claim 1, wherein, the format conversion of the data encryption and encoding format conversion module includes converting the intercom Voice information processing is a general data format that satisfies the three intercom modes of public network, private network and digital intercom at the same time. 6. The hybrid intercom system supporting public network intercom, private network intercom and digital intercom as claimed in claim 5, wherein the intercom voice information is transmitted via the data transmission module in a common data format Sending, transmitting and receiving of data. 7. The hybrid intercom system supporting public network intercom, private network intercom and digital intercom as claimed in claim 6, wherein the data transmission module comprises: A data sending sub-module, sending the intercom voice information with a common data format; A data transmission sub-module, which transmits the intercom voice information with a common format via public network, private network and point-to-point mode; A data receiving sub-module receives the intercom voice information in a common data format according to different intercom modes, and transmits the intercom voice information to the data decryption decoding format conversion module. 8. The hybrid intercom system supporting public network intercom, private network intercom and digital intercom as claimed in any one of claims 4 or 7, wherein the data decryption decoding format conversion module receives the data The intercom voice information transmitted by the receiving sub-module, the ID code of the voice information archived by the system in the data decryption, decoding and format conversion module is provided by the voice information storage module. 9. A hybrid intercom method supporting public network intercom, private network intercom and digital intercom, characterized in that the method comprises the following steps: S1 generates intercom voice information; S2 performs ID encoding and software encryption processing on the intercom voice information; S3 performs format conversion on the intercom voice information; S4 sends the intercom voice information processed by S3; S5 receives the intercom voice information sent by S4 and performs decryption processing and ID code checking; S6 receives and listens to the intercom voice information checked by S5; The S7 system stores the intercom voice information received and listened to in S6 and its ID code. 10. The hybrid intercom method supporting public network intercom, private network intercom and digital intercom as claimed in claim 6, characterized in that, in step S3, also includes performing the following sub-steps simultaneously: S31 processes the intercom voice information into a format that meets the requirements of private network intercom; S32 processes the intercom voice information into a format that meets public network intercom requirements; S33 processes the intercom voice information into a format that meets digital intercom requirements. 11. The hybrid intercom method supporting public network intercom, private network intercom and digital intercom as claimed in claim 7, characterized in that, in step S4, also includes performing the following sub-steps simultaneously: S41 sends the intercom voice information conforming to the format required by the private network via the private network; S42 Send the intercom voice information in a format that meets the public network intercom requirements via the public network server; S43 Send the intercom voice information in a format conforming to digital intercom requirements via a point-to-point mode. 12. The hybrid intercom method supporting public network intercom, private network intercom and digital intercom as claimed in claim 8, characterized in that, in step S5, the following sub-steps are also included: S51 receiving the intercom voice information sent in step S4; S52 judges whether the ID coding of the intercom voice information is repeated with the voice information ID coding that the system has archived, if so then enters S53, if not, then enters S6; S53 discards and clears the intercom voice information.