CN112616171A - Communication method and device based on wireless local area network and computer readable storage medium - Google Patents
Communication method and device based on wireless local area network and computer readable storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The invention discloses a communication method based on a wireless local area network, which is applied to a wireless local area network system constructed by wireless local area network equipment and a plurality of mobile terminals, and comprises the following steps: the first mobile terminal starts a UDP protocol and sends a broadcast packet with a receiving address as a preset address to the wireless local area network equipment; and the first mobile terminal receives a response packet sent by the second mobile terminal and establishes a communication channel with the second mobile terminal according to the received response packet. The invention is beneficial to reducing the communication cost of short distance. In addition, the invention also discloses a communication device and a computer readable storage medium based on the wireless local area network.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communications method and apparatus based on a wireless local area network, and a computer-readable storage medium.
Background
Along with the progress of the industrial level and the improvement of the living standard of people, the functions of the communication equipment are more and more diversified, thereby enriching the life of people.
The existing communication devices generally need to access the corresponding telecommunication operators, so as to obtain the corresponding communication services. However, existing telecommunications carriers are paid agreements, resulting in higher costs for communicating over shorter distances than for long distance communications.
Disclosure of Invention
The invention mainly aims to provide a communication method, a communication device and a computer readable storage medium based on a wireless local area network, and aims to solve the technical problem that the existing short-distance communication is high in cost.
In order to solve the above technical problem, the present invention provides a communication method based on a wireless local area network, applied to a wireless local area network system constructed by a wireless local area network device and a plurality of mobile terminals, the communication method including:
the first mobile terminal starts a UDP protocol and sends a broadcast packet with a receiving address as a preset address to the wireless local area network equipment;
and the first mobile terminal receives a response packet sent by the second mobile terminal and establishes a communication channel with the second mobile terminal according to the received response packet.
The first mobile terminal starts a UDP protocol and sends a broadcast packet with a receiving address as a preset address to the wireless local area network equipment, and the steps comprise:
generating a broadcast packet containing the IP address of the first mobile terminal;
acquiring a preset public address;
and sending a broadcast packet to the public address.
The steps that the first mobile terminal receives a response packet sent by a second mobile terminal and establishes a communication channel with the second mobile terminal according to the received response packet comprise:
the first mobile terminal identifies the IP address in the response packet;
and starting a TCP protocol according to the IP address in the response packet so as to establish a communication channel with the second mobile terminal.
The step of the first mobile terminal establishing a communication channel with the second mobile terminal according to the response packet comprises the following steps:
after the steps of the first mobile terminal receiving the response packet sent by the second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet, the method further comprises the following steps:
the first mobile terminal collects communication information;
converting the communication information into a binary data string;
and sending the binary data string into the communication channel.
Wherein the content of the first and second substances,
after the steps of the first mobile terminal receiving the response packet sent by the second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet, the method further comprises the following steps:
the first mobile terminal reads a binary data string in the communication channel;
and converting the read binary data string into displayable or playable information.
The second mobile terminal is a communication robot with a wireless communication function.
The invention further provides a communication device based on the wireless local area network, which is applied to a mobile terminal and comprises:
the first information sending module is used for starting a UDP protocol and sending a broadcast packet with a receiving address as a preset address to the wireless local area network equipment;
the first information receiving module is used for receiving the broadcast packet;
the second information sending module is used for starting a TCP (transmission control protocol) according to the broadcast packet and sending a response packet to the wireless local area network equipment;
the second information receiving module is used for receiving the response packet;
the communication channel building module is used for building a communication channel between two or more mobile terminals.
Wherein the first information sending module comprises:
a broadcast packet generating unit for generating a broadcast packet containing an IP address of the mobile terminal;
the public address extracting unit is used for acquiring a preset public address;
a broadcast packet sending unit, configured to send the broadcast packet whose receiving address is the public address to the wireless local area network device.
Wherein the second information sending module comprises:
a first address identification unit for identifying an IP address within the broadcast packet;
the response packet generating unit is used for generating a response packet containing the IP address of the mobile terminal and starting a TCP (transmission control protocol);
and the response packet sending unit is used for sending the response packet with the receiving address being the IP address in the broadcast packet to the wireless local area network equipment.
Wherein the communication channel constructing module comprises:
a second address identifying unit configured to identify an IP address in the response packet;
and the channel building unit is used for opening a TCP (transmission control protocol) according to the IP address in the response packet and building a communication channel between two or more corresponding mobile terminals.
The present invention also proposes a computer-readable storage medium storing a computer program which, when executed by a processor, at least implements the aforementioned wireless local area network-based communication method.
According to the communication method based on the wireless local area network, the communication channels are established in the wireless local area network by the intelligent devices, so that data transmission can be carried out by utilizing the communication channels.
Drawings
Fig. 1 is a flowchart illustrating a wlan-based communication method according to an embodiment of the present invention;
fig. 2 is a block diagram of an embodiment of a wlan-based communication device according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.
The invention provides a communication method based on a wireless local area network, which is applied to a wireless local area network system constructed by a wireless local area network device and a plurality of mobile terminals, wherein the wireless local area network device can be a wireless router, and as shown in figure 1, the communication method comprises the following steps:
step S10A, the first mobile terminal starts the UDP protocol and sends a broadcast packet with a preset address to the wlan device.
In this step, the UDP protocol may be started by the user on the software of the first mobile terminal, or the UDP protocol may be in a normally open state, and when communication is required, the user may automatically generate the broadcast packet after directly inputting the preset address on the software. Wherein the content of the broadcast packet may be a specific number of the first mobile terminal.
In step S20A, the first mobile station receives the response packet sent by the second mobile station, and establishes a communication channel with the second mobile station according to the received response packet.
In this step, the first mobile terminal receives the response packet sent by the second mobile terminal (i.e. all the mobile terminals in the wireless lan except the first mobile terminal) and identifies the information in the response packet, and then establishes a communication channel with the second mobile terminal according to the information, so that the first mobile terminal and the second mobile terminal can communicate through the communication channel. The first mobile terminal receives the response packet sent by the wireless local area network, and the specific data transmission mode is performed by referring to the data transmission mode of the existing local area network.
In this embodiment, the communication channel is established in the wireless lan by the plurality of intelligent devices, so that data transmission can be performed by using the communication channel, and since the data transmission is performed only in the wireless lan, no cost is required, which is beneficial to reducing the communication cost of short distance. Meanwhile, the coverage area and the data transmission speed of the existing wireless router are continuously improved, so that the communication method is particularly suitable for enterprise internal communication.
In a preferred embodiment, the step of the first mobile terminal starting the UDP protocol and sending the broadcast packet addressed to the predetermined address to the wlan device includes:
generating a broadcast packet containing the IP address of the first mobile terminal;
acquiring a preset public address;
the broadcast packet is sent to the public address.
In this step, since each mobile terminal will obtain a specific IP address after connecting to the wlan, the first mobile terminal may set the IP address of the first terminal in the broadcast packet when generating the broadcast packet. And then the first mobile terminal acquires the preset public address, so that the broadcast packet with the public address as the receiving address is sent to the wireless local area network, and the second mobile terminal can receive the broadcast packet conveniently. The IP of the public address is generally 255.255.255.255. Of course, the first mobile terminal may also directly send the broadcast packet to the second mobile terminal through the wireless lan device after acquiring the IP address of the second mobile terminal in advance.
In a preferred embodiment, the step of the first mobile terminal receiving the response packet sent by the second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet comprises:
the first mobile terminal identifies the IP address in the response packet;
and establishing a communication channel with the second mobile terminal according to the IP address in the response packet.
In this step, the first mobile terminal identifies which of the IP address or the reject identifier is the information in the response packet, and if the information is the reject identifier, it represents that the establishment of the communication channel fails, so that the first mobile terminal automatically exits the communication mode; if the address is an IP address, a TCP long connection is formed with the second mobile terminal, and a communication channel is established between the first mobile terminal and the second mobile terminal, thereby constituting a necessary condition for performing communication.
In a preferred embodiment, after the steps of the first mobile terminal receiving the response packet sent by the second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet, the method further comprises:
the first mobile terminal collects communication information;
converting the communication information into a binary data string;
the binary data string is sent into the communication channel.
In this step, the communication information collected by the first mobile terminal may be one or more of characters, images and sounds, and the specific collection mode may be performed with reference to an existing mode. Meanwhile, in order to facilitate transmission of communication information in the communication channel, the communication information needs to be converted into a binary data string, and then the converted binary data string is sent to the communication channel.
In a preferred embodiment, after the steps of the first mobile terminal receiving the response packet sent by the second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet, the method further comprises:
the first mobile terminal reads a binary data string in the communication channel;
the read binary data string is converted into information that can be displayed or played.
In this step, the first mobile terminal reads the binary data string (not the binary data string sent by the first mobile terminal itself) in the communication channel and then performs conversion to obtain information that can be played or displayed by the first mobile terminal. When the number of the second mobile terminals is multiple, the established communication channels may be that the first mobile terminal establishes separate communication channels with the multiple second mobile terminals, respectively, and any one of the second mobile terminals may not obtain the communication information sent by another second mobile terminal, or may obtain the communication information sent by the other second mobile terminals by using the first mobile terminal as a relay station, that is, the first mobile terminal sends the communication information to the other second mobile terminals after receiving the communication information sent by one of the second mobile terminals, and preferably, the two states may be freely switched by a user of the first mobile terminal.
In a preferred embodiment, the second mobile terminal is preferably a robot with wireless communication function, such as a collaboration robot in an existing factory, so as to facilitate communication between the management user and a general user operating the collaboration robot.
In the process of establishing the communication channel between the first mobile terminal and the second terminal, the second terminal performs the following steps:
and the second mobile terminal starts a TCP (transmission control protocol) according to the received broadcast packet and sends a response packet to the wireless local area network equipment.
And the second mobile terminal establishes a communication channel with the first mobile terminal receiving the response packet.
In this step, the second mobile terminal receives the broadcast packet and recognizes the broadcast packet, and then starts the TCP protocol, and then sends a response packet to the wireless lan. Wherein, the content contained in the response packet may be a specific number of the second mobile terminal. The second mobile terminal may receive all broadcast packets in the wlan at any time after connecting to the wlan, and at this time, the second mobile terminal is only a substitute, and not only one mobile terminal, but also multiple mobile terminals may receive the broadcast packets at the same time. Finally, the second mobile terminal can form a TCP long connection with the first mobile terminal after the first mobile terminal receives the response packet, so that a communication channel is established between the second mobile terminal and the first mobile terminal, and a necessary condition for communication is formed.
In a preferred embodiment, the step of the second mobile terminal starting the TCP protocol according to the received broadcast packet and sending the response packet to the wlan device includes:
identifying an IP address within the broadcast packet;
generating a response packet containing the IP address of the second mobile terminal and starting a TCP (transmission control protocol);
and sending a response packet to the IP address in the broadcast packet.
In this step, after the second mobile terminal identifies the IP address in the broadcast packet, the second mobile terminal immediately generates a response packet containing its IP address and synchronously starts the TCP protocol, and finally the second mobile terminal sends the response packet whose receiving address is the IP address in the broadcast packet to the wireless lan device. Of course, after receiving the broadcast packet, if the second mobile terminal is not intended to answer, the second mobile terminal may send a reject packet to the IP address whose receiving address is in the broadcast packet through a reject operation. Wherein, the rejection packet contains the identifier which is preset to represent the rejection meaning and can be identified by the first mobile terminal.
In a preferred embodiment, after the step of the second mobile terminal establishing a communication channel with the first mobile terminal receiving the response packet, the method further comprises:
the second mobile terminal collects communication information;
converting the communication information into a binary data string;
the binary data string is sent into the communication channel.
In this step, the communication information collected by the second mobile terminal may be one or more of characters, images and sounds, and the specific collection mode may be performed with reference to an existing mode. Meanwhile, in order to facilitate transmission of communication information in the communication channel, the communication information needs to be converted into a binary data string, and then the converted binary data string is sent to the communication channel.
In a preferred embodiment, after the step of the second mobile terminal establishing a communication channel with the first mobile terminal receiving the response packet, the method further comprises:
the second mobile terminal reads the binary data string in the communication channel;
the read binary data string is converted into information that can be displayed or played.
In this step, the second mobile terminal reads the binary data string (not the binary data string sent by the second mobile terminal itself) in the communication channel and then converts the binary data string to obtain information that can be played or displayed by the second mobile terminal. When the number of the first mobile terminals is multiple, the established communication channels may be that the second mobile terminal establishes separate communication channels with the multiple first mobile terminals, respectively, and any one of the first mobile terminals may not obtain the communication information sent by another first mobile terminal, or may obtain the communication information sent by the other first mobile terminals by using the second mobile terminal as a relay station, that is, the second mobile terminal further sends the communication information to the other first mobile terminals after receiving the communication information sent by one of the first mobile terminals, and preferably, the two states may be freely switched by a user of the second mobile terminal.
Based on the aforementioned proposed communication method based on the wireless local area network, as shown in fig. 2, the present invention further provides a communication device based on the wireless local area network, the communication device comprising:
a first information sending module 10, configured to start a UDP protocol and send a broadcast packet with a preset address to a wireless lan device;
a first information receiving module 20 for receiving a broadcast packet;
the second information sending module 30 is configured to start a TCP protocol according to the broadcast packet and send a response packet to the wlan device;
a second information receiving module 40 for receiving the response packet
A communication channel building module 50 for establishing a communication channel between two or more mobile terminals.
In a preferred embodiment, the first information sending module 10 includes:
a broadcast packet generating unit for generating a broadcast packet containing its IP address;
the public address extracting unit is used for acquiring a preset public address;
and the broadcast packet sending unit is used for sending the broadcast packet with the public address as the receiving address to the wireless local area network equipment.
In a preferred embodiment, the second information sending module 30 includes:
a first address identification unit for identifying an IP address within a broadcast packet;
the response packet generating unit is used for generating a response packet containing the IP address of the mobile terminal and starting a TCP (transmission control protocol);
and the response packet sending unit is used for sending a response packet with the receiving address being the IP address in the broadcast packet to the wireless local area network equipment.
Of course, the second information sending module may further include:
and the response confirmation unit is used for confirming whether a response packet containing the IP address of the mobile terminal is generated or not.
In a preferred embodiment, the communication channel building block 50 comprises:
a second address identifying unit for identifying the IP address in the response packet;
and the channel building unit is used for starting a TCP (transmission control protocol) according to the IP address in the response packet and building a communication channel between two or more corresponding mobile terminals.
In a preferred embodiment, the communication device further comprises:
and the data transmission module is used for reading and collecting data information.
The data transmission module includes:
the data acquisition unit is used for externally inputting data information;
the first conversion unit is used for converting the communication information into a binary data string;
the data sending unit is used for sending the binary data string into the communication channel;
and the data reading unit is used for reading the binary data string in the communication channel.
And the second conversion unit is used for converting the read binary data string into information which can be displayed or played.
Based on the aforementioned communication method based on the wireless local area network, the present invention further provides a communication device based on the wireless local area network, where the communication device based on the wireless local area network includes:
a memory for storing a computer program;
a processor for implementing at least the steps of the wireless local area network based communication method as shown in fig. 1 when executing the computer program.
Based on the aforementioned proposed wireless local area network based communication method, the present invention further proposes a computer-readable storage medium, which stores a computer program, which when executed by a processor at least implements the steps of the wireless local area network based communication method as shown in fig. 1.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules or components may be combined or integrated into another apparatus, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a protocol device, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above is only a part or preferred embodiment of the present invention, and neither the text nor the drawings should limit the scope of the present invention, and all equivalent structural changes made by the present specification and the contents of the drawings or the related technical fields directly/indirectly using the present specification and the drawings are included in the scope of the present invention.
Claims (11)
1. A communication method based on a wireless local area network, the wireless local area network comprising a wireless local area network device and a plurality of mobile terminals, the communication method comprising:
the first mobile terminal starts a UDP protocol and sends a broadcast packet with a receiving address as a preset address to the wireless local area network equipment;
and the first mobile terminal receives a response packet sent by the second mobile terminal and establishes a communication channel with the second mobile terminal according to the received response packet.
2. The communication method according to claim 1, wherein the step of the first mobile terminal starting UDP protocol and sending a broadcast packet addressed to a predetermined address to the wlan device comprises:
generating a broadcast packet containing the IP address of the first mobile terminal;
acquiring a preset public address;
and sending a broadcast packet to the public address.
3. The communication method according to claim 2, wherein the step of the first mobile terminal receiving the response packet transmitted by the second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet comprises:
the first mobile terminal identifies the IP address in the response packet;
and establishing a communication channel with the second mobile terminal according to the IP address in the response packet.
4. The communication method according to claim 1, further comprising, after the steps of the first mobile terminal receiving a response packet transmitted by a second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet:
the first mobile terminal collects communication information;
converting the communication information into a binary data string;
and sending the binary data string into the communication channel.
5. The communication method according to claim 1, further comprising, after the steps of the first mobile terminal receiving a response packet transmitted by a second mobile terminal and establishing a communication channel with the second mobile terminal according to the received response packet:
the first mobile terminal reads a binary data string in the communication channel;
and converting the read binary data string into displayable or playable information.
6. The communication method according to claim 5, wherein the second mobile terminal is a robot having a wireless communication function.
7. A communication device based on wireless local area network, applied to a mobile terminal, the communication device comprising:
the first information sending module is used for starting a UDP protocol and sending a broadcast packet with a receiving address as a preset address to the wireless local area network equipment;
the first information receiving module is used for receiving the broadcast packet;
the second information sending module is used for starting a TCP (transmission control protocol) according to the broadcast packet and sending a response packet to the wireless local area network equipment;
the second information receiving module is used for receiving the response packet;
the communication channel building module is used for building a communication channel between two or more mobile terminals.
8. The apparatus according to claim 7, wherein the first information sending module comprises:
a broadcast packet generating unit for generating a broadcast packet containing an IP address of the mobile terminal;
the public address extracting unit is used for acquiring a preset public address;
a broadcast packet sending unit, configured to send the broadcast packet whose receiving address is the public address to the wireless local area network device.
9. The communication apparatus according to claim 7, wherein the second information sending module comprises:
a first address identification unit for identifying an IP address within the broadcast packet;
the response packet generating unit is used for generating a response packet containing the IP address of the mobile terminal and starting a TCP (transmission control protocol);
and the response packet sending unit is used for sending the response packet with the receiving address being the IP address in the broadcast packet to the wireless local area network equipment.
10. The communications apparatus of claim 7, wherein the communication channel construction module comprises:
a second address identifying unit configured to identify an IP address in the response packet;
and the channel building unit is used for opening a TCP (transmission control protocol) according to the IP address in the response packet and building a communication channel between two or more corresponding mobile terminals.
11. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the wireless local area network-based communication method of any one of claims 1 to 6.
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| CN114567919A (en) * | 2022-03-31 | 2022-05-31 | 深圳市英威腾电气股份有限公司 | Network access method, device, equipment and storage medium |
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| CN105375969A (en) * | 2015-09-30 | 2016-03-02 | 青岛海信移动通信技术股份有限公司 | A method and a device for relaying by a mobile device |
| CN105974812A (en) * | 2016-07-08 | 2016-09-28 | 无锡市华东电力设备有限公司 | Intelligent household monitoring system |
| CN106230918A (en) * | 2016-07-26 | 2016-12-14 | 努比亚技术有限公司 | A kind of method and device setting up connection |
| CN108234518A (en) * | 2018-02-06 | 2018-06-29 | 深圳创维－Rgb电子有限公司 | A kind of method, apparatus, terminal and the storage medium of terminal communication |
| CN111405560A (en) * | 2020-02-14 | 2020-07-10 | 北京邮电大学 | Communication method, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113794994A (en) * | 2021-08-26 | 2021-12-14 | 珠海格力电器股份有限公司 | Information gathering method and device based on multicast domain name system and application thereof |
| CN114567919A (en) * | 2022-03-31 | 2022-05-31 | 深圳市英威腾电气股份有限公司 | Network access method, device, equipment and storage medium |
| CN114567919B (en) * | 2022-03-31 | 2024-05-07 | 深圳市英威腾电气股份有限公司 | Method, device, equipment and storage medium for accessing network |
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