CN107635198B - System and method for realizing communication based on existing WiFi network - Google Patents

System and method for realizing communication based on existing WiFi network Download PDF

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Publication number
CN107635198B
CN107635198B CN201710919628.5A CN201710919628A CN107635198B CN 107635198 B CN107635198 B CN 107635198B CN 201710919628 A CN201710919628 A CN 201710919628A CN 107635198 B CN107635198 B CN 107635198B
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wifi
talkback
terminal
protocol
management platform
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CN107635198A (en
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徐庆林
周勇
王伟
李艳
严维伟
张新国
陈文涛
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Qixiang Electron Science & Technology Co ltd
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Qixiang Electron Science & Technology Co ltd
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Abstract

The invention discloses a system for realizing communication based on the existing WiFi network, which consists of a WiFi talkback terminal, a WiFi wireless network and a WiFi talkback management platform, wherein the WiFi talkback terminal adopts a wide area network WiFi access technology and is connected to the WiFi talkback management platform through any global AP hotspot to realize the WiFi voice talkback function. As long as there is the place of wiFi network, can realize local and cross regional wireless talkback between the wiFi talkback terminal, need not to pay frequency point cost and conversation expense to can easily realize full duplex conversation, the pronunciation is very clear. Further, the video data uploading function can be realized by using the screen terminal. The system provided by the invention has the advantages of simple structure, rapid arrangement, strong functions and low cost, and can be widely applied to the scenes of star hotels, large hospitals, physical examination centers, large business supermarkets, large warehouses, sports centers, airport ground service, catering enterprises, manufacturing enterprises, security officers, substation polling and the like.

Description

System and method for realizing communication based on existing WiFi network
Technical Field
The invention relates to the field of wireless interphones, in particular to a system and a method for realizing communication based on the existing WiFi network.
Background
With the rapid construction of global digital cities, the coverage of WiFi wireless hotspots becomes mature day by day, WiFi signals can be accessed anytime and anywhere in daily life and work, and data transmission, data sharing and data access in the global range are carried out through the Internet. For example: hotels, offices, enterprise parks, industry WIFI private networks, and the like. The WIFI signals are utilized to realize the voice intercom technology in the global range, so that the WIFI intercom terminal can realize the voice service of the traditional analog/digital interphone in the global range without constructing a professional signal coverage network, can support the image video transmission function which cannot be supported by the traditional analog/digital interphone at low cost besides the wide-range voice intercom function, and can realize the indoor position and track tracking function which cannot be realized by the traditional analog/digital interphone.
The conventional analog/digital intercom system has single function and high networking cost, and is difficult to meet the requirements of industries such as security industry, hotel industry, property management, prisons, hospitals and the like. The existing WiFi talkback in the current market needs to establish a special WiFi hotspot channel, does not directly utilize the hotspot of the existing WiFi network to carry out interconnection and intercommunication of talkback terminals, and only supports local area networks with the same SSID.
Disclosure of Invention
The invention provides a system and a method for realizing communication based on the existing WiFi network, which are suitable for places with relatively perfect indoor WiFi coverage such as hotels, offices, enterprise parks, residential community security, prisons, hospitals and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a system for realizing communication based on the existing WiFi network comprises a WiFi talkback terminal, a WiFi wireless network and a WiFi talkback management platform;
the WiFi talkback terminal comprises a screen terminal, a non-screen terminal and a mobile terminal provided with a talkback APP, and the WiFi talkback terminal judges the signal intensity of the connected WiFiAP in advance and switches among the WiFiAP in the talkback process according to a preset rule; the WiFi talkback terminal is accessed to any worldwide WiFiAP by adopting a wide area network access mode, and simultaneously supports the local area network access mode of the WiFiAP with the same SSID;
the WiFi wireless network is an existing WiFi wireless network and comprises a plurality of WiFiAP covering a call area, each router is accessed to a plurality of WiFiAP, the routers are accessed to a WiFi talkback management platform through the Internet, and the call area is adjusted by increasing or decreasing the WiFiAP;
the WiFi talkback management platform based on the cloud platform is characterized in that application server software is embedded in a cloud server to operate and manage WiFi talkback terminals accessed via any worldwide WiFiAP, so that the voice talkback function and the video data uploading function of single call, group call and broadcast are realized, a multi-server group in the WiFi talkback management platform adopts a mode that single-node servers all use the same application server software, the single-node servers are increased and changed at any time without influencing other servers which are working, the configuration indexes of each single-node server can be different according to the cost control requirement, and the servers are upgraded at any time according to the number of the accessed WiFi talkback terminals and the number of the accessed WiFi talkback terminals; the WiFi intercom system comprises a plurality of servers, a plurality of WiFi intercom terminals and a plurality of service providers, wherein the plurality of servers adopt the same public network fixed IP address, all the WiFi intercom terminals only point to the unique public network fixed IP address when the Internet is accessed, and a flow pool mode is adopted when the flow of an operator is used; the servers are interconnected in a local area network mode, each server consists of a management server and a plurality of service servers, the management server is responsible for configuration management and WEB access of the WiFi talkback terminal, and the service servers are responsible for realizing talkback services of the WiFi talkback terminal.
The WiFi talkback management platform and the WiFi talkback terminal adopt a proprietary communication protocol to carry out voice and data interaction, and the communication protocol comprises four main protocol groups:
(1) logging in a protocol group: the method comprises the steps that an interaction process for accessing talkback APP on each WiFi talkback terminal and a mobile terminal into a WiFi talkback management platform is used, access authentication and terminal access configuration are applied, and each WiFi talkback terminal is ensured to be correctly accessed into the WiFi talkback management platform;
(2) voice call protocol group: the interactive flow of the existing voice intercom system is adopted, and the communication scheduling of voice intercom is realized in the working states of group calling, single-family, simplex voice and duplex voice;
(3) daily terminal maintenance protocol group: the method comprises a heartbeat protocol, a WiFi switching protocol and a protocol for reporting various states of a WiFi talkback terminal to a WiFi talkback management platform;
(4) data function protocol group: according to the functions of different WiFi talkback terminals, the communication protocol of the data stream of the non-voice talkback data is realized, and the communication protocol comprises a WiFi position positioning data acquisition protocol, a video data uploading protocol, an RFID data uploading protocol, a GPS data uploading protocol and other self-defined various functional communication protocols;
(5) the protocol implementation method and definition:
the protocol comprises a message separator, a protocol version, a message type, a message length, a sequence number and a content, wherein:
message delimiters: 2Byte, at the beginning of the entire message, with a value of 7E A5;
protocol version: 1Byte, protocol version number;
message type: 1Byte, 0x 01A-low speech middle data, 0x 02A-low speech end data, 0x03PCM speech middle data, 0x04PCM speech end data, 0x8x signaling;
message length: 2Byte, total message length including message header;
message content: n x8 bytes comprising voice data, mapping control data or link control data.
A method for realizing communication based on the existing WiFi network comprises the following steps:
step 1, the WiFi talkback terminal registers the WiFi talkback terminal to the WiFiAP through a standard WLAN access protocol, the WiFi talkback terminal obtains an Internet IP address and a data channel accessed to the Internet in the process, then the WiFi talkback terminal takes the WiFiAP as the IP data channel to carry out management information interaction with a WiFi talkback management platform, and the WiFiAP does not participate in subsequent data processing;
step 2, when the WiFi talkback terminal is started, firstly, a registration protocol is sent to the WiFi talkback management platform, the registration protocol comprises all registration information of an ID number, an authentication code and an IP address of the WiFi talkback terminal, the WiFi talkback management platform carries out identity authentication on the WiFi talkback terminal sending the registration protocol, and after the authentication is passed, an authentication passing protocol is sent to the WiFi talkback terminal, and the WiFi talkback terminal starts to normally work;
when the WiFi talkback terminal is started, automatically downloading a WiFiAP list from the WiFi talkback management platform and storing the WiFiAP list, scanning the environment of a field AP, matching the scanned WiFiAP information with the downloaded WiFiAP list, confirming the accessible WiFiAP and accessing the WiFiAP, and accessing the WiFi talkback terminal management platform through the WiFiAP;
step 3, the WiFi talkback terminal sends heartbeat protocols to the WiFi talkback management platform at intervals of threshold time in daily work, and the WiFi talkback management platform maintains the online condition and the working state of the WiFi talkback terminal according to the heartbeat protocols;
when the WiFi talkback management platform needs to inquire or request specific conditions or functions of a certain WiFi talkback terminal, the WiFi talkback management platform sends a function protocol to a designated WiFi talkback terminal, and the designated WiFi talkback terminal sends related data to the WiFi talkback management platform according to the function protocol;
step 4, voice information interaction among the WiFi talkback management platform, the WiFi wireless network and the WiFi talkback terminal:
(1) in a configured WiFi talkback terminal group, the selection of the calling type and the selection of the called target are carried out on the WiFi talkback terminal, when one WiFi talkback terminal is used as a calling party to initiate a call by pressing a PTT key, the call type, the called target and the calling party busy protocol are firstly sent to a WiFi talkback management platform, after the WiFi intercommunication management platform manages and confirms the call conflict, a call list is formed, a data forwarding channel is distributed to the WiFi intercommunication terminal of the calling party, and a called starting instruction is sent to all the called targets, simultaneously, a calling starting instruction is sent to the calling party, and a strong called protocol is sent to other WiFi talkback terminals in the group, other WiFi talkback terminals receive the strong called protocol and enter a called state, meanwhile, the WiFi talkback management platform sends a calling agreement protocol to the WiFi talkback terminal which initiates the calling, and the WiFi talkback terminal which initiates the calling enters a calling state;
the calling WiFi talkback terminal starts to continuously send the voice data IP packets to the WiFi talkback management platform, and the WiFi talkback management platform sends the voice data IP packets to all the called WiFi talkback terminals in the group according to the data forwarding channels distributed previously;
when the PTT key of the calling WiFi talkback terminal is released to form a voice call ending protocol, the voice call ending protocol is forwarded to all called WiFi talkback terminals through the WiFi talkback management platform, and all occupied resources are released;
when the called WiFi intercommunication terminal receives the called protocol or the voice ending protocol, if the protocol is lost, the called WiFi intercommunication terminal recovers the called process and ends the voice communication process according to the received voice data condition;
(2) the voice talkback process comprises single call, group call and group call, namely each WiFi talkback terminal is provided with a voice talkback list of a single call list, a group call list and a group call list, and the WiFi talkback terminal automatically downloads and stores the voice talkback list from a WiFi talkback terminal management platform when being started;
(3) when the WiFi talkback terminal used as a calling party is set to be in a recordable state, when the WiFi talkback terminal initiates a voice call, voice data passing through the WiFi talkback management platform are stored, and the stored data are stored as a file according to one-time conversation;
(4) the utility model discloses a set up whether the management platform talkbacks at wiFi carries out the broadcast function to every wiFi terminal of talkbacking and opens, when needs to talkback the terminal broadcast to wiFi and send electronic voice notice, compile the broadcast document, this wiFi management platform talkbacks converts the broadcast document into broadcast voice data automatically, and send the broadcast warning tone to the wiFi terminal of talkbacking that supports the broadcast function, when wiFi terminal of talkbacking receives the broadcast warning tone instruction, play the warning tone through loudspeaker, the user passes through the function key and starts the function of broadcast, can answer broadcast voice message.
The invention discloses a system for realizing communication based on a conventional WiFi network, which consists of a WiFi talkback terminal, a WiFi wireless network and a WiFi talkback management platform, wherein the WiFi talkback terminal adopts a wide area network WiFi access technology and is connected to the WiFi talkback management platform through any global AP hotspot to realize a WiFi voice talkback function. As long as there is the place of wiFi network, can realize local and cross regional wireless talkback between the wiFi talkback terminal, need not to pay frequency point cost and conversation expense to can easily realize full duplex conversation, the pronunciation is very clear. Further, the video data uploading function can be realized by using the screen terminal. The system provided by the invention has the advantages of simple structure, rapid arrangement, strong functions and low cost, and can be widely applied to the scenes of star hotels, large hospitals, physical examination centers, large business supermarkets, large warehouses, sports centers, airport ground service, catering enterprises, manufacturing enterprises, security officers, substation polling and the like.
Detailed Description
The invention relates to a system for realizing communication by adopting a wide area network access technology based on the existing WiFi network, which comprises a WiFi talkback terminal, a WiFi wireless network and a WiFi talkback management platform;
the WiFi talkback terminal comprises a screen terminal, a non-screen terminal and a mobile terminal provided with a talkback APP, the WiFi talkback terminal judges the signal intensity of the connected WiFiAP in advance and seamlessly switches among the WiFiAP according to a preset rule, namely, in the talkback process, the WiFi talkback terminal is switched from one WiFiAP to another WiFiAP, so that the talkback can be carried out smoothly without being blocked;
the WiFi wireless network is the existing WiFi wireless network of a user and comprises a plurality of WiFiAP covering a call area, each router is accessed to a plurality of WiFiAP, the routers are accessed to a WiFi talkback management platform through the Internet, excessive network equipment cost is not required to be invested, and the call area can be adjusted by increasing or reducing the WiFiAP; the WiFi talkback terminal is accessed to any one WiFiAP in the world by adopting a wide area network access mode, and simultaneously supports a local area network access mode of a WiFi hotspot with the same SSID;
according to the WiFi talkback management platform based on the cloud platform, specially developed server software is embedded into a cloud server to operate and manage WiFi talkback terminals accessed via any global AP hot spot, so that voice talkback functions such as single call, group call, broadcast and the like are realized, and a video data uploading function can be realized by using a screen terminal. The multi-server group in the WiFi talkback management platform adopts a mode that single-node servers all use the same application server software, the deployment is very flexible, the single-node servers can be added and changed at any time without influencing other servers which are working, the configuration indexes of each single-node server can be different according to the cost control requirement, and the servers can be upgraded at any time according to the number of accessed WiFi talkback terminals and the number of concurrencies; the WiFi intercom system comprises a plurality of servers, a plurality of WiFi intercom terminals and a plurality of service providers, wherein the plurality of servers adopt the same public network fixed IP address, and all the WiFi intercom terminals only point to the unique public network fixed IP address when the WiFi intercom terminals are accessed to the Internet, so that a flow pool mode is adopted when the flow of an operator is used, and the operation cost is reduced;
the WiFi intercommunication management platform is designed in a mode of a server group, so that a plurality of servers can complete high-capacity concurrency of a software system and access of a high-capacity terminal together. The servers are interconnected in a local area network mode, each server comprises a management server and a plurality of service servers, the management server is responsible for configuration management and WEB access of the WiFi talkback terminal, and the service servers are responsible for realizing talkback services of the WiFi talkback terminal.
The WiFi talkback management platform and the WiFi talkback terminal adopt a proprietary communication protocol to carry out voice and data interaction, and the communication protocol comprises four main protocol groups:
(1) logging in a protocol group: the method comprises the steps that an interaction process for accessing talkback APP on each WiFi talkback terminal and a mobile terminal into a WiFi talkback management platform, application for access, access authentication, issuing terminal access configuration and the like is adopted, and each terminal is ensured to be correctly accessed into the WiFi talkback management platform;
(2) voice call protocol group: the interactive flow of the existing voice intercom system is adopted, and the communication scheduling of voice intercom is realized in the working states of group calling, single-family, simplex voice and duplex voice;
(3) daily terminal maintenance protocol group: the method comprises a heartbeat protocol, a WiFi switching protocol, a protocol for reporting various states of a terminal to a WiFi talkback management platform and the like;
(4) data function protocol group: according to the functions of different terminals, the communication protocol of the data stream of the non-voice talkback data is realized, and the communication protocol comprises a WiFi (wireless fidelity) position positioning data acquisition protocol, a video data uploading protocol, an RFID (radio frequency identification) data uploading protocol, a GPS (global positioning system) data uploading protocol and other self-defined various functional communication protocols;
(5) the protocol implementation method and definition:
message separator Protocol version Message type Message length Serial number Content providing method and apparatus
Message delimiters: 2Byte, at the beginning of the entire message, with a value of 7E A5;
protocol version: 1Byte, when the protocol version is upgraded, different decoding processing can be carried out on various message types;
message type: 1Byte, 0x01A-Iow voice middle data, 0x02A-Iow end of speech data, 0x03PCM voice middle data, 0x04PCM end of speech data, 0x8x signaling;
message length: 2Byte, total message length including message header;
message content: n x8 bytes comprising voice data, mapping control data or link control data.
The invention discloses a method for realizing a communication system based on the existing WiFi network, which comprises the following steps:
step 1, the WiFi talkback terminal registers the WiFi talkback terminal to the WiFiAP through a standard WLAN access protocol, the WiFi talkback terminal obtains an Internet IP address and a data channel accessed to the Internet in the process, then the WiFi talkback terminal takes the WiFiAP as the IP data channel to carry out management information interaction with a WiFi talkback management platform, and the WiFiAP does not participate in subsequent data processing;
step 2, when the WiFi talkback terminal is started, firstly, a registration protocol is sent to the WiFi talkback management platform, the registration protocol comprises all registration information of an ID number, an authentication code and an IP address of the WiFi talkback terminal, the WiFi talkback management platform carries out identity authentication on the WiFi talkback terminal sending the registration protocol, and an authentication passing protocol is sent to the WiFi talkback terminal after the authentication is passed, so that the WiFi talkback terminal can normally work;
when the WiFi talkback terminal is started, automatically downloading a WiFiAP list from the WiFi talkback management platform and storing the WiFiAP list, scanning the environment of a field AP, matching the scanned WiFiAP information with the downloaded WiFiAP list, confirming the accessible WiFiAP and accessing the accessible WiFiAP, and accessing the WiFi talkback terminal management platform through the WiFiAP;
step 3, the WiFi talkback terminal sends a heartbeat protocol to the WiFi talkback management platform every 10 seconds (threshold time) in daily work, and the WiFi talkback management platform maintains the online condition and the working state of the WiFi talkback terminal according to the heartbeat protocol;
when the WiFi talkback management platform needs to inquire or request specific conditions or functions of a certain WiFi talkback terminal, the WiFi talkback management platform sends a function protocol to a designated WiFi talkback terminal, and the designated WiFi talkback terminal sends related data to the WiFi talkback management platform according to the function protocol;
step 4, voice information interaction between the WiFi talkback management platform (a switching center for managing information and voice data) and the WiFi wireless network (an IP data channel of the WiFi mobile internet provided by an operator, and a final node is a WIFI AP (wireless fidelity access point), namely a WIFI hotspot) and a WiFi talkback terminal (a man-machine voice interaction terminal which supports 802.11a/g/n protocol):
(1) in a configured WiFi talkback terminal group, the selection of the calling type and the selection of the called target are carried out on the WiFi talkback terminal, when one WiFi talkback terminal is used as a calling party to initiate a call by pressing a PTT key, the call type, the called target and the calling party busy protocol are firstly sent to a WiFi talkback management platform, after the WiFi intercommunication management platform manages and confirms the call conflict, a call list is formed, a data forwarding channel is distributed to the WiFi intercommunication terminal of the calling party, and a called starting instruction is sent to all the called targets, simultaneously, a calling starting instruction is sent to the calling party, and a strong called protocol is sent to other WiFi talkback terminals in the group, other WiFi talkback terminals receive the strong called protocol and enter a called state, meanwhile, the WiFi talkback management platform sends a calling agreement protocol to the WiFi talkback terminal which initiates the calling, and the WiFi talkback terminal which initiates the calling enters a calling state;
the calling WiFi talkback terminal starts to continuously send the voice data IP packets to the WiFi talkback management platform, and the WiFi talkback management platform sends the voice data IP packets to all the called WiFi talkback terminals in the group according to the data forwarding channels distributed previously;
when the PTT key of the calling WiFi talkback terminal is released to form a voice call ending protocol, the voice call ending protocol is forwarded to all called WiFi talkback terminals through the WiFi talkback management platform, and all occupied resources are released;
when the called WiFi intercommunication terminal receives the called protocol or the voice ending protocol, if the protocol is lost, the called WiFi intercommunication terminal recovers the called process and ends the voice communication process according to the received voice data condition, so that the safety of the called protocol and the execution of the called is enhanced;
(2) the voice talkback process comprises single call, group call and group call, namely each WiFi talkback terminal is provided with a voice talkback list of a single call list, a group call list and a group call list, and the WiFi talkback terminal automatically downloads and stores the voice talkback list from a WiFi talkback terminal management platform when being started;
(3) when the WiFi talkback terminal used as a calling party is set to be in a recordable state, voice data passing through the WiFi talkback management platform are stored when the WiFi talkback terminal initiates a voice call, and the stored data are stored as a file according to one-time conversation and are sorted according to time;
(4) the utility model discloses a set up whether the management platform talkbacks at wiFi carries out the broadcast function to every wiFi terminal of talkbacking and opens, when needs to talkback the terminal broadcast to wiFi and send electronic voice notice, compile the broadcast document, this wiFi management platform talkbacks converts the broadcast document into broadcast voice data automatically, and send the broadcast warning tone to the wiFi terminal of talkbacking that supports the broadcast function, when wiFi terminal of talkbacking receives the broadcast warning tone instruction, play the warning tone through loudspeaker, the user passes through the function key and starts the function of broadcast, can answer broadcast voice message.

Claims (2)

1. A system for realizing communication based on the existing WiFi network is characterized in that: the system comprises a WiFi talkback terminal, a WiFi wireless network and a WiFi talkback management platform;
the WiFi talkback terminal comprises a screen terminal, a non-screen terminal and a mobile terminal provided with a talkback APP, and the WiFi talkback terminal judges the signal intensity of the connected WiFiAP in advance and switches among the WiFiAP in the talkback process according to a preset rule; the WiFi talkback terminal is accessed to any worldwide WiFiAP by adopting a wide area network access mode, and simultaneously supports the local area network access mode of the WiFiAP with the same SSID;
the WiFi wireless network is an existing WiFi wireless network and comprises a plurality of WiFiAP covering a call area, each router is accessed to a plurality of WiFiAP, the routers are accessed to a WiFi talkback management platform through the Internet, and the call area is adjusted by increasing or decreasing the WiFiAP;
the WiFi talkback management platform is characterized in that application server software is embedded in a cloud server to operate and manage WiFi talkback terminals accessed via any worldwide WiFiAP, so that the voice talkback function and the video data uploading function of single call, group call and broadcast are realized, a multi-server group in the WiFi talkback management platform adopts a mode that single-node servers all use the same application server software, the single-node servers are added and changed at any time, other servers which are working are not influenced, the configuration indexes of each single-node server are different according to the cost control requirement, and the servers are upgraded at any time according to the number of the accessed WiFi talkback terminals and the number of concurrent WiFi talkback terminals; the WiFi intercom system comprises a plurality of servers, a plurality of WiFi intercom terminals and a plurality of service providers, wherein the plurality of servers adopt the same public network fixed IP address, all the WiFi intercom terminals only point to the unique public network fixed IP address when the Internet is accessed, and a flow pool mode is adopted when the flow of an operator is used; the servers are interconnected in a local area network mode, each server consists of a management server and a plurality of service servers, the management server is responsible for configuration management and WEB access of the WiFi talkback terminal, and the service servers are responsible for realizing the talkback service of the WiFi talkback terminal;
the WiFi talkback management platform and the WiFi talkback terminal adopt a proprietary communication protocol to carry out voice and data interaction, and the communication protocol comprises four main protocol groups:
(1) logging in a protocol group: the method comprises the steps that an interaction process for accessing talkback APP on each WiFi talkback terminal and a mobile terminal into a WiFi talkback management platform is used, access authentication and terminal access configuration are applied, and each WiFi talkback terminal is ensured to be correctly accessed into the WiFi talkback management platform;
(2) voice call protocol group: the interactive flow of the existing voice intercom system is adopted, and the communication scheduling of voice intercom is realized in the working states of group calling, single calling, simplex voice and duplex voice;
(3) daily terminal maintenance protocol group: the method comprises a heartbeat protocol, a WiFi switching protocol and a protocol for reporting various states of a WiFi talkback terminal to a WiFi talkback management platform;
(4) data function protocol group: according to the functions of different WiFi talkback terminals, the communication protocol of the data stream of the non-voice talkback data is realized, and the communication protocol comprises a WiFi position positioning data acquisition protocol, a video data uploading protocol, an RFID data uploading protocol, a GPS data uploading protocol and other self-defined various functional communication protocols;
(5) the protocol implementation method and definition:
the protocol comprises a message separator, a protocol version, a message type, a message length, a sequence number and a content, wherein:
message delimiters: 2Byte, at the beginning of the entire message, with a value of 7E A5;
protocol version: 1Byte, protocol version number;
message type: 1Byte, 0x01 represents a-law voice intermediate data, 0x02 represents a-law voice end data, 0x03 represents PCM voice intermediate data, 0x04 represents PCM voice end data, 0x8x represents signaling;
message length: 2Byte, total message length including message header;
message content: n x8 bytes comprising voice data, mapping control data or link control data.
2. The method of claim 1, comprising the steps of:
step 1, the WiFi talkback terminal registers the WiFi talkback terminal to the WiFiAP through a standard WLAN access protocol, the WiFi talkback terminal obtains an Internet IP address and a data channel accessed to the Internet in the process, then the WiFi talkback terminal takes the WiFiAP as the IP data channel to carry out management information interaction with a WiFi talkback management platform, and the WiFiAP does not participate in subsequent data processing;
step 2, when the WiFi talkback terminal is started, firstly, a registration protocol is sent to the WiFi talkback management platform, the registration protocol comprises all registration information of an ID number, an authentication code and an IP address of the WiFi talkback terminal, the WiFi talkback management platform carries out identity authentication on the WiFi talkback terminal sending the registration protocol, and after the authentication is passed, an authentication passing protocol is sent to the WiFi talkback terminal, and the WiFi talkback terminal starts to normally work;
when the WiFi talkback terminal is started, automatically downloading a WiFiAP list from the WiFi talkback management platform and storing the WiFiAP list, scanning the environment of a field AP, matching the scanned WiFiAP information with the downloaded WiFiAP list, confirming the accessible WiFiAP and accessing the accessible WiFiAP, and accessing the WiFi talkback terminal management platform through the WiFiAP;
step 3, the WiFi talkback terminal sends heartbeat protocols to the WiFi talkback management platform at intervals of threshold time in daily work, and the WiFi talkback management platform maintains the online condition and the working state of the WiFi talkback terminal according to the heartbeat protocols;
when the WiFi talkback management platform needs to inquire or request specific conditions or functions of a certain WiFi talkback terminal, the WiFi talkback management platform sends a function protocol to a designated WiFi talkback terminal, and the designated WiFi talkback terminal sends related data to the WiFi talkback management platform according to the function protocol;
step 4, voice information interaction among the WiFi talkback management platform, the WiFi wireless network and the WiFi talkback terminal:
(1) in a configured WiFi talkback terminal group, the selection of the calling type and the selection of the called target are carried out on the WiFi talkback terminal, when one WiFi talkback terminal is used as a calling party to initiate a call by pressing a PTT key, the call type, the called target and the calling party busy protocol are firstly sent to a WiFi talkback management platform, after the WiFi intercommunication management platform confirms the call conflict, a call list is formed, a data forwarding channel is distributed to the WiFi intercommunication terminal of the calling party, and a called starting instruction is sent to all called targets, simultaneously, a calling starting instruction is sent to the calling party, and a strong called protocol is sent to other WiFi talkback terminals in the group, other WiFi talkback terminals receive the strong called protocol and enter a called state, meanwhile, the WiFi talkback management platform sends a calling agreement protocol to the WiFi talkback terminal which initiates the calling, and the WiFi talkback terminal which initiates the calling enters a calling state;
the calling WiFi talkback terminal starts to continuously send the voice data IP packets to the WiFi talkback management platform, and the WiFi talkback management platform sends the voice data IP packets to all the called WiFi talkback terminals in the group according to the data forwarding channels distributed previously;
when the PTT key of the calling WiFi talkback terminal is released to form a voice call ending protocol, the voice call ending protocol is forwarded to all called WiFi talkback terminals through the WiFi talkback management platform, and all occupied resources are released;
when the called WiFi intercommunication terminal receives the called protocol or the voice ending protocol, if the protocol is lost, the called WiFi intercommunication terminal recovers the called process and ends the voice communication process according to the received voice data condition;
(2) the voice talkback process comprises single call, group call and group call, namely each WiFi talkback terminal is provided with a voice talkback list of a single call list, a group call list and a group call list, and the WiFi talkback terminal automatically downloads and stores the voice talkback list from a WiFi talkback terminal management platform when being started;
(3) when the WiFi talkback terminal used as a calling party is set to be in a recordable state, when the WiFi talkback terminal initiates a voice call, voice data passing through the WiFi talkback management platform are stored, and the stored data are stored as a file according to one-time conversation;
(4) the utility model discloses a set up whether the management platform talkbacks at wiFi carries out the broadcast function to every wiFi terminal of talkbacking and opens, when needs to talkback the terminal broadcast to wiFi and send electronic voice notice, compile the broadcast document, this wiFi management platform talkbacks converts the broadcast document into broadcast voice data automatically, and send the broadcast warning tone to the wiFi terminal of talkbacking that supports the broadcast function, when wiFi terminal of talkbacking receives the broadcast warning tone instruction, play the warning tone through loudspeaker, the user passes through the function key and starts the function of broadcast, can answer broadcast voice message.
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