CN102970357A - embedded device communication system based on ad-hoc network and communication method thereof - Google Patents

embedded device communication system based on ad-hoc network and communication method thereof Download PDF

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Publication number
CN102970357A
CN102970357A CN2012104454610A CN201210445461A CN102970357A CN 102970357 A CN102970357 A CN 102970357A CN 2012104454610 A CN2012104454610 A CN 2012104454610A CN 201210445461 A CN201210445461 A CN 201210445461A CN 102970357 A CN102970357 A CN 102970357A
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server
embedded type
type terminal
terminal equipment
embedded
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张为
王猛
谭宇华
刘艳艳
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Tianjin University
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Tianjin University
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Abstract

The invention discloses an embedded device communication method based on an ad-hoc network. Multiple embedded terminal devices based on the ad-hoc network are connected with a server through a network device to form the ad-hoc network. After the server is started, multiple client group channels are created, and each client group channel is relatively independent. Then, the server waits for the terminal devices to be accessed into. The embedded terminal devices are added to the client group channels, inquire client group information and perform message transmission, voice transmission and file transmission. Various embedded terminal devices are effectively integrated into an organic communication system, strong signal processing functions of the embedded terminal devices are fully utilized, an embedded communication platform is formed in an ad-hoc network mode, and the embedded device communication method is especially suitable for information transfer of small embedded terminal devices under the ad-hoc network environment and has ultrahigh and wide market value.

Description

Embedded device communication system and communication means thereof based on MANET
Technical field
The present invention relates to a kind of embedded device communication system and communication means thereof, particularly a kind of embedded device communication system and communication means thereof based on MANET.
Background technology
Development in science and technology is to today, and the means of communication that creates is very abundant, and broadcasting, TV, landline telephone, mobile phone, fax, computer network etc. are almost ubiquitous.Relevant survey data shows that the average communication equipment that everyone uses reaches 6.4 kinds more than at present.But in the ordinary course of things, often Each performs its own functions for these means of communication, professional single.Therefore seek a kind of various communications applications can being incorporated on the unified platform, thoroughly eliminate because communication mode disperses and the private communication facility skewness causes information to intercept phenomenon.Along with reaching its maturity of modern communication technology, communication mode take 3G as representative, can solve preferably the problem that conventional communication techniques exists, but its shortcoming is obvious equally: high cost comprises expensive terminal (mobile phone or PC) and expensive communication cost; Communication quality is too dependent on the construction situation of base station simultaneously, and being widely used under some complex conditions and adverse circumstances has difficulties.
Along with microelectric technique, the particularly develop rapidly of the embedded processor technology take ARM, MIPS etc. as representative, so far various portable multimedia products ubiquity, embedded system is compared with the PC system, and following advantage is arranged: but the superiority such as high handling property, software and hardware cutting, high reliability, low cost, small size and low-power consumption.Existing embedded device is mostly as a data processing unit independently, and various embedded devices distribute scattered mostly, and information can't be transmitted maybe mutually can only transmit simple signal, causes communication disorders, affects policymaker's final judgement.
In most of the cases, because online inconvenience or secret demand, embedded device can't access wide area network, and the networking of MANET is convenient, communications cost is low, strong security just embodies its distinctive advantage.
If can take full advantage of the existing powerful signal processing function of the said equipment, adopt simultaneously embedded software, in equipment, incorporate communication function, by the ad-hoc network form, realize message, voice communication and file transfer between different embedded devices, form the embedded communication platform, this will have high market value undoubtedly.
Summary of the invention
For above-mentioned prior art, the invention provides a kind of embedded device communication system and communication means thereof based on MANET, take full advantage of the signal handling capacity of embedded device, effectively various embedded devices are fused into an organic communication system, are specially adapted to the information transmission between the low profile edge equipment under the MANET environment.
In order to solve the problems of the technologies described above, to the present invention is based on the technical scheme that the communication system between the embedded device of ad-hoc network is achieved and be: connect and compose an ad-hoc network by a plurality of embedded type terminal equipments based on ad-hoc network by the network equipment and a server; Described server has web server function, in order to the response message of all embedded type terminal equipments of data-base recording of the instruction request of the connection that receives embedded type terminal equipment, response embedded type terminal equipment, server background with transmit the data of embedded type terminal equipment, these data comprise message, voice and file; Described embedded type terminal equipment has microprocessor chip, shows output equipment, audio frequency input-output equipment, keyboard input devices and mixed-media network modules mixed-media that described mixed-media network modules mixed-media adopts cable network module or wireless network module; Described embedded type terminal equipment possesses and sends instruction, resolves the instruction that forwards from server and the basic function of response server request; Embedded type terminal equipment possesses the function that sends message, file and realization real time bidirectional voice data transmission simultaneously; The described network equipment comprises router or switch, router is cable router or wireless router, the described network equipment provides wired or wireless access network mode for described server and embedded type terminal equipment, and for embedded type terminal equipment provides IP address based on ICP/IP protocol, to realize the mutually intercommunication between each embedded type terminal equipment.
The present invention is based on the communication means between the embedded device of ad-hoc network, a plurality of embedded type terminal equipments based on ad-hoc network are connected and composed an ad-hoc network by the network equipment and a server; Server creates a plurality of customers channel after opening, and each customers' channel is relatively independent; Subsequently, server just enters the state of waiting for the embedded type terminal equipment access;
Embedded type terminal equipment adds the process of customers' channel: behind the embedded type terminal equipment access network, after starting client-side program and connecting upper server, send the instruction of the current customers of inquiry channel to server; Server feeds back to this embedded type terminal equipment with current customers' channel information; Embedded type terminal equipment sends the instruction that adds customers' channel by client-side program to server, and the user name of itself is set; Meanwhile, user name and the IP information of the embedded type terminal equipment that the background data base of server record has just been logined, and deposit background data base in for information interchange between the embedded type terminal equipment;
The process of embedded type terminal equipment inquiry customers information: built-in terminal calls enumerates the member module program to the instruction of server transmission inquiring user, server is inquired about customers' information of typing in background data base, and send client's inventory in the current customers channel to built-in terminal, comprise current online client's number and each client's user name;
Embedded type terminal equipment carries out the process of transmission of messages: embedded type terminal equipment message call transport module program is initiated the message transfer behavior to server, select to send separately a certain member in the customers, or select mass-sending pattern, server will receive the request of this built-in terminal and still mass-send according to single-shot message is sent on the embedded whole equipment of correspondence; Recipient's built-in terminal receives this message and is showing that output equipment shows this message;
Embedded type terminal equipment carries out the process of voice full-duplex communication: embedded type terminal equipment calls the voice transfer modular program and initiates the voice delivery behavior to server, select to send separately a certain member in the customers or select the mass-sending pattern, server will receive the request of this built-in terminal and still mass-send on the built-in terminal that sends the request to correspondence according to single-shot; Recipient's built-in terminal is replied after receiving this voice request, selective reception or refusal; After selecting reception, server will inform that the initiator can begin voice transfer, will begin to transmit subsequently both sides' speech data; In sound transmission course, both sides can use at any time and disconnect the transmission of order fulfillment current speech;
Embedded type terminal equipment carries out the process of file transfer: embedded type terminal equipment calls the document transmission module program and initiates the file transfers behavior to server, select to send separately a certain member in the customers or select the mass-sending pattern, server will receive the request of this built-in terminal and still mass-send on the built-in terminal that sends the request to correspondence according to single-shot; Recipient's built-in terminal is replied after receiving this voice request, selective reception or refusal; After selecting reception, server will inform that the initiator can begin file transfer, will begin the data that transmit a document subsequently, and the recipient namely begins to receive file data and be kept in the memory.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is fused into various embedded type terminal equipments an organic communication system effectively, can take full advantage of the existing powerful signal processing function of embedded type terminal equipment, by the ad-hoc network form, realize message, voice communication and file transfer between different embedded type terminal equipments, form the embedded communication platform, be specially adapted to the information transmission between the low profile edge terminal equipment under the ad-hoc network environment, have high and market value widely.
Description of drawings
Fig. 1 is whole hardware structure diagram of the present invention;
Fig. 2 is that built-in terminal is established hardware architecture figure among the present invention;
Fig. 3 is the main flow chart of communication means of the present invention;
Fig. 4 is transmission of messages flow chart between the built-in terminal of the present invention;
Fig. 5 is full-duplex communication flow chart between the built-in terminal of the present invention;
Fig. 6 is file transfer flow chart between the built-in terminal of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
As shown in Figure 1, the present invention is based on the communication system between the embedded device of ad-hoc network, connect and compose an ad-hoc network 12 by a plurality of embedded type terminal equipments 11 based on ad-hoc network by the network equipment and a server 10.
The response message of all terminal equipments and the data of forwarding terminal equipment comprise message, voice and file in the instruction request of server 10 responsible reception embedded type terminal equipments connections, response embedded type terminal equipment, the data-base recording embedded communication system of server background.Embedded type terminal equipment 11 sends and resolves instruction request; Transmission message, file can be realized the real time bidirectional voice data transmission simultaneously; Reception server forwarding data, point-to-point transmission data and mass-sending data.The network that ad-hoc network 12 is built by router or switch for server and embedded interrupting device provide wired or wireless access network mode, for embedded type terminal equipment provides the IP address, makes things convenient for the intercommunication of each terminal based on ICP/IP protocol.
As shown in Figure 2, be the hardware structure figure of embedded type terminal equipment of the present invention: embedded type terminal equipment comprises the microprocessor 20 responsible client-side program of carrying out, and dispatches peripheral modules and works synergistically; Ancillary equipment comprises audio input device 21 at least; Be responsible for receiving voice signal and be converted to digital signal for microprocessor processes; The audio digital signals that audio output apparatus 22 is responsible for microprocessor is sent is converted to voice signal; Keyboard input devices 23 is responsible for obtaining user's input message; Show that output equipment 24 is responsible for the Word message of the processor form with character is shown; Mixed-media network modules mixed-media 25 provides the mode of access network for processor, is responsible for the conversion between network signal and the processor signal, makes built-in terminal can pass through network access server; Described mixed-media network modules mixed-media 25 adopts cable network module or wireless network module; Described embedded type terminal equipment possesses and sends instruction, resolves the instruction that forwards from server and the basic function of response server request; Embedded type terminal equipment possesses the message of transmission and file simultaneously, realizes the real time bidirectional voice data transmission.
The described network equipment comprises router or switch, router is cable router or wireless router, the described network equipment provides wired or wireless access network mode for described server and embedded type terminal equipment, and for embedded type terminal equipment provides IP address based on ICP/IP protocol, to realize the mutually intercommunication between each embedded type terminal equipment.
The present invention is based on the communication means between the embedded device of ad-hoc network, a plurality of embedded type terminal equipments based on ad-hoc network are connected and composed an ad-hoc network by the network equipment and a server.
Server creates a plurality of customers channel after opening, and each customers' channel is relatively independent; Subsequently, server just enters the state of waiting for the embedded type terminal equipment access.
Figure 3 shows that the main flow of communication means of the present invention: step 30, server creates a plurality of customers channel by creating customers' channel instruction; Step 31, built-in terminal is logined customers' channel by the login instruction; Step 32, built-in terminal is enumerated member module and is listed member in channel by enumerating instruction calls; Step 33, built-in terminal sends message by mass-sending or single-shot message instruction calls transmission of messages module to the mandatory member; Step 34, built-in terminal are called the voice transfer module by mass-sending or single-shot phonetic order and are carried out voice communication to the mandatory member; Step 35, built-in terminal by the mass-sending or single-shot instruction calls document transmission module to mandatory member's Transmit message.
Embedded type terminal equipment adds the process of customers' channel: behind the embedded type terminal equipment access network, after starting client-side program and connecting upper server, send the instruction of the current customers of inquiry channel to server; Server feeds back to this embedded type terminal equipment with current customers' channel information; Embedded type terminal equipment sends the instruction that adds customers' channel by client-side program to server, and the user name of itself is set; Meanwhile, user name and the IP information of the embedded type terminal equipment that the background data base of server record has just been logined, and deposit background data base in for information interchange between the embedded type terminal equipment;
The process of embedded type terminal equipment inquiry customers information: built-in terminal calls enumerates the member module program to the instruction of server transmission inquiring user, server is inquired about customers' information of typing in background data base, and send client's inventory in the current customers channel to built-in terminal, comprise current online client's number and each client's user name;
Embedded type terminal equipment carries out the process of transmission of messages:
Embedded type terminal equipment message call transport module program is initiated the message transfer behavior to server, select to send separately a certain member in the customers, or select mass-sending pattern, server will receive the request of this built-in terminal and still mass-send according to single-shot message is sent on the embedded whole equipment of correspondence; Recipient's built-in terminal receives this message and is showing that output equipment shows this message; Fig. 4 shows the flow process of transmission of messages between embedded type terminal equipment A and the embedded type terminal equipment B: step 40, and built-in terminal A initiates private message transmission request to server; Step 41, server receive built-in terminal A request and return response frame to built-in terminal A; Step 42, built-in terminal A receives the also response frame of resolution server, opens the transmission of messages thread, sends private message; Step 43, server receives and transmits this private message frame to the built-in terminal B of appointment; Step 44, embedded type terminal equipment B receives and resolves message frame, and message content is outputed on the screen.
Embedded type terminal equipment carries out the process of voice full-duplex communication:
Embedded type terminal equipment calls the voice transfer modular program and initiates the voice delivery behavior to server, select to send separately a certain member in the customers or select the mass-sending pattern, server will receive the request of this built-in terminal and still mass-send on the built-in terminal that sends the request to correspondence according to single-shot; Recipient's built-in terminal is replied after receiving this voice request, selective reception or refusal; After selecting reception, server will inform that the initiator can begin voice transfer, will begin to transmit subsequently both sides' speech data; In sound transmission course, both sides can use at any time and disconnect the transmission of order fulfillment current speech; Fig. 5 shows the flow process that the present invention realizes voice full-duplex communication between embedded type terminal equipment A and the embedded type terminal equipment B: step 50, and embedded type terminal equipment A initiates private message transmission request; Step 51, server Forward-reques bag is to embedded type terminal equipment B; Step 52, embedded type terminal equipment B returns response frame to server; Step 53, embedded type terminal equipment A and embedded type terminal equipment B be the opening voice send-thread respectively; Step 54, embedded type terminal equipment A and embedded type terminal equipment B at first send the voice identifier symbol of the first frame; Step 55, embedded type terminal equipment A and embedded type terminal equipment B originally do not begin to send speech data; Step 56, embedded type terminal equipment A and embedded type terminal equipment B receive respectively and play the other side's speech data; Step 57, embedded type terminal equipment A sends the voice ending request to server; Step 58, server is transmitted ending request, and embedded type terminal equipment A and embedded type terminal equipment B finish voice transfer.
Embedded type terminal equipment carries out the process of file transfer: embedded type terminal equipment calls the document transmission module program and initiates the file transfers behavior to server, select to send separately a certain member in the customers or select the mass-sending pattern, server will receive the request of this built-in terminal and still mass-send on the built-in terminal that sends the request to correspondence according to single-shot; Recipient's built-in terminal is replied after receiving this voice request, selective reception or refusal; After selecting reception, server will inform that the initiator can begin file transfer, will begin the data that transmit a document subsequently, and the recipient namely begins to receive file data and be kept in the memory.Fig. 6 shows the flow process that the present invention realizes file transfer between embedded type terminal equipment A and the embedded type terminal equipment B: step 60, and embedded type terminal equipment A is to server Transmit message transmission request; Step 61, server Forward-reques bag is to embedded type terminal equipment B; Step 62, embedded type terminal equipment B returns response frame to server; Step 63, embedded type terminal equipment A and embedded type terminal equipment B be file opening transmission thread respectively; Step 64, embedded type terminal equipment A Transmit message name information; Step 65, server transmit a document name to embedded type terminal equipment B; Step 66, embedded type terminal equipment A Transmit message data are to server; Step 67, embedded type terminal equipment B transmits a document data to embedded type terminal equipment B; Step 68, embedded type terminal equipment A is to server Transmit message end identifier; Step 69, server finishes two file transfer threads, end of file transfer.
Involved client-side program among the present invention, the realization of enumerating member module program, transmission of messages modular program, voice transfer modular program and document transmission module program belong to common practise in the art, be the conventional techniques means that corresponding problem adopts that solve in this area, do not repeat them here.
Although top invention has been described in conjunction with figure; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; in the situation that does not break away from aim of the present invention, can also make a lot of distortion, these all belong within the protection of the present invention.

Claims (2)

1. one kind based on the communication system between the embedded device of ad-hoc network, it is characterized in that: connect and compose an ad-hoc network by a plurality of embedded type terminal equipments based on ad-hoc network by the network equipment and a server;
Described server has web server function, in order to the response message of all embedded type terminal equipments of data-base recording of the instruction request of the connection that receives embedded type terminal equipment, response embedded type terminal equipment, server background with transmit the data of embedded type terminal equipment, these data comprise message, voice and file;
Described embedded type terminal equipment has microprocessor chip, shows output equipment, audio frequency input-output equipment, keyboard input devices and mixed-media network modules mixed-media that described mixed-media network modules mixed-media adopts cable network module or wireless network module; Described embedded type terminal equipment possesses and sends instruction, resolves the instruction that forwards from server and the basic function of response server request; Simultaneously embedded type terminal equipment possess send message and, the function of file and realization real time bidirectional voice data transmission;
The described network equipment comprises router or switch, router is cable router or wireless router, the described network equipment provides wired or wireless access network mode for described server and embedded type terminal equipment, and for embedded type terminal equipment provides IP address based on ICP/IP protocol, to realize the mutually intercommunication between each embedded type terminal equipment.
2. one kind based on the communication means between the embedded device of ad-hoc network, it is characterized in that: a plurality of embedded type terminal equipments based on ad-hoc network are connected and composed an ad-hoc network by the network equipment and a server;
Server creates a plurality of customers channel after opening, and each customers' channel is relatively independent; Subsequently, server just enters the state of waiting for the embedded type terminal equipment access;
Embedded type terminal equipment adds the process of customers' channel:
Behind the embedded type terminal equipment access network, after starting client-side program and connecting upper server, send the instruction of the current customers of inquiry channel to server; Server feeds back to this embedded type terminal equipment with current customers' channel information; Embedded type terminal equipment sends the instruction that adds customers' channel by client-side program to server, and the user name of itself is set; Meanwhile, user name and the IP information of the embedded type terminal equipment that the background data base of server record has just been logined, and deposit background data base in for information interchange between the embedded type terminal equipment;
The process of embedded type terminal equipment inquiry customers information:
Built-in terminal calls enumerates the member module program to the instruction of server transmission inquiring user, server is inquired about customers' information of typing in background data base, and send client's inventory in the current customers channel to built-in terminal, comprise current online client's number and each client's user name;
Embedded type terminal equipment carries out the process of transmission of messages:
Embedded type terminal equipment message call transport module program is initiated the message transfer behavior to server, select to send separately a certain member in the customers, or select mass-sending pattern, server will receive the request of this built-in terminal and still mass-send according to single-shot message is sent on the embedded whole equipment of correspondence; Recipient's built-in terminal receives this message and is showing that output equipment shows this message;
Embedded type terminal equipment carries out the process of voice full-duplex communication:
Embedded type terminal equipment calls the voice transfer modular program and initiates the voice delivery behavior to server, select to send separately a certain member in the customers or select the mass-sending pattern, server will receive the request of this built-in terminal and still mass-send on the built-in terminal that sends the request to correspondence according to single-shot; Recipient's built-in terminal is replied after receiving this voice request, selective reception or refusal; After selecting reception, server will inform that the initiator can begin voice transfer, will begin to transmit subsequently both sides' speech data; In sound transmission course, both sides can use at any time and disconnect the transmission of order fulfillment current speech;
Embedded type terminal equipment carries out the process of file transfer: embedded type terminal equipment calls the document transmission module program and initiates the file transfers behavior to server, select to send separately a certain member in the customers or select the mass-sending pattern, server will receive the request of this built-in terminal and still mass-send on the built-in terminal that sends the request to correspondence according to single-shot; Recipient's built-in terminal is replied after receiving this voice request, selective reception or refusal; After selecting reception, server will inform that the initiator can begin file transfer, will begin the data that transmit a document subsequently, and the recipient namely begins to receive file data and be kept in the memory.
CN2012104454610A 2012-11-08 2012-11-08 embedded device communication system based on ad-hoc network and communication method thereof Pending CN102970357A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110321097A (en) * 2019-06-10 2019-10-11 安徽沧浪网络科技有限公司 A kind of audio transmission system based on wireless self-networking
CN113329456A (en) * 2021-04-30 2021-08-31 北京连山科技股份有限公司 Service system combining ad hoc network and multiplex transmission

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
武晓燕等: "基于ARM9嵌入式语音与数据通信系统的研究", 《微型电脑应用》 *
王猛等: "基于ARM11的嵌入式通信系统", 《微型电脑应用》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110321097A (en) * 2019-06-10 2019-10-11 安徽沧浪网络科技有限公司 A kind of audio transmission system based on wireless self-networking
CN113329456A (en) * 2021-04-30 2021-08-31 北京连山科技股份有限公司 Service system combining ad hoc network and multiplex transmission
CN113329456B (en) * 2021-04-30 2022-03-25 北京连山科技股份有限公司 Service system combining ad hoc network and multiplex transmission

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Application publication date: 20130313