CN118075331A - Method, device, equipment and storage medium for establishing network access channel - Google Patents

Abstract

The method, the device, the equipment and the storage medium for establishing the network access channel are applied to the field of Internet communication. When detecting the change of the IP address of the terminal equipment, the terminal equipment firstly generates a new address instruction and sends the new address instruction to the proxy server through the signaling server so that the proxy server can update the stored IP address in time, then when determining that the client is in a starting state, the proxy server updates the second address memory of the client, and finally when determining that the current network environment of the client is a mobile network environment, the proxy server and the signaling server cooperatively construct a network access channel. The method solves the problems that the MQTT protocol in the prior art depends on a proxy server to transmit data, violates a local storage principle, increases information leakage risk and lacks a flexible adaptation mechanism when a network environment is switched, and further improves the efficiency and stability of network communication, thereby providing smoother network experience for users.

Description

Method, device, equipment and storage medium for establishing network access channel

Technical Field

The present application relates to the field of Internet communications, and in particular to a method, device, equipment and storage medium for establishing a network access channel.

Background technique

With the rapid development of science and technology and the improvement of people's living standards, the demand for intelligent terminal devices in homes and offices is increasing, and some terminal devices (such as smart TVs, smart speakers, smart printers, etc.) are even required to have intelligent operating systems. Therefore, in order to meet the needs of complex business scenarios, such as file transfer and local playback of video resources, the MQTT protocol is widely used to achieve data transmission between clients and terminal devices.

However, when dealing with complex business scenarios, the MQTT protocol needs to rely on proxy servers to achieve data transmission between terminal devices and clients. This transit mechanism does not conform to the principle of local storage of user information, thereby increasing the risk of information leakage. In addition, transmitting resources through proxy servers not only increases the bandwidth and storage burden of the server, but also increases operating costs. More importantly, when switching between the LAN and other network environments, due to the lack of a flexible network adaptation mechanism, the network access method between the client and the terminal device is difficult to flexibly adjust, which to a certain extent limits the application scope and efficiency of the MQTT protocol in complex network environments.

Therefore, it is urgent to propose an effective solution to the problems in the existing technology that the MQTT protocol relies on proxy servers to transmit data, violates the local storage principle, increases the risk of information leakage, and lacks a flexible adaptation mechanism when switching network environments.

Summary of the invention

The present application provides a method, apparatus, device and storage medium for establishing a network access channel, which are used to solve the problems in the prior art that the MQTT protocol relies on a proxy server to transmit data, violates the local storage principle, increases the risk of information leakage, and lacks a flexible adaptation mechanism when switching network environments.

In a first aspect, the present application provides a method for establishing a network access channel, which is applied to a terminal device, and the method includes:

Acquire local area network information of the terminal device, the local area network information including: IP address;

Detect in real time whether the IP address has changed, and when the IP address has changed, determine a new IP address of the terminal device;

Generate an address change instruction according to the new IP address, and send the address change instruction to the signaling server, so that the signaling server forwards the address change instruction to the proxy server;

Acquire the remote access address sent by the signaling server, and establish a network access channel according to the remote access address.

Optionally, before obtaining the local area network information of the terminal device, the method further includes:

Acquire a first operating state of the terminal device, and when the target operating state is a first startup state, start the HTTP interface service, and send a first connection request to the signaling server, so that the signaling server establishes a first MQTT connection relationship according to the first connection request.

Optionally, after establishing the network access channel according to the remote access address, the method further includes:

Opening a network access channel and an access timer, and updating the timing of the access timer, wherein the access timer is used to record the opening duration of the network access channel;

Determine whether the current timing duration of the access timer is a preset idle timeout duration;

If yes, closing the network access channel;

If not, determining whether the current timing duration reaches the preset usage duration, and the preset idle timeout duration is less than the preset usage duration;

When the current timing duration reaches the preset usage duration, the network access channel is closed.

In a second aspect, the present application provides a method for establishing a network access channel, which is applied to a proxy server, and the method includes:

Obtaining an address change instruction sent by a signaling server, and updating a first address memory of the proxy server according to the address change instruction;

Acquire target query information sent by the client, and determine the target query result according to the target query information and the first address memory;

Sending the target query result to the signaling server so that the signaling server forwards the target query result to the client;

Obtaining a network channel creation instruction sent by the client, and generating a remote access address according to the network channel creation instruction;

The remote access address is sent to the signaling server, so that the signaling server forwards the remote access address to the terminal device and the client respectively.

In a third aspect, the present application provides a method for establishing a network access channel, which is applied to a client, and the method includes:

Acquire a second running state of the client, and when the second running state is a second startup state, send target query information to the proxy server, and send a second connection request to the signaling server, so that the signaling server establishes a second MQTT connection relationship according to the second connection request;

Obtaining the target query result sent by the signaling server, and updating the second address memory of the client according to the target query result;

Acquire the current network environment of the client, and when the current network environment is a mobile network environment, generate a network channel creation instruction according to the mobile network environment;

The network channel creation instruction is sent to the proxy server, so that the proxy server establishes a network access channel according to the network channel creation instruction.

Optionally, the method further includes:

When the current network environment is a Wi-Fi network environment, a target detection method is used to detect the second address memory to obtain a target detection result, where the target detection result is used to indicate whether the client and the terminal device are in the same local area network;

When the address detection result indicates that the client and the terminal device are not in the same local area network, the network channel creation instruction is generated according to the Wi-Fi network environment.

Optionally, after generating the network channel creation instruction according to the current network environment, the method further includes:

The remote access address sent by the signaling server is obtained, and the remote access address is stored and processed, so that the client can remotely access the terminal device according to the remote access address.

In a fourth aspect, the present application provides a device for establishing a network access channel, which is applied to a terminal device, and the device includes:

An acquisition module is used to acquire local area network information of a terminal device, wherein the local area network information includes: an IP address;

A detection module, used to detect in real time whether the IP address has changed;

A determination module, used to determine a new IP address of the terminal device when the IP address changes;

A generating module, used for generating an address change instruction according to the new IP address;

A sending module, used for sending the change address instruction to a signaling server, so that the signaling server forwards the change address instruction to a proxy server;

The acquisition module is further used to acquire the remote access address sent by the signaling server;

The establishing module is used to establish a network access channel according to the remote access address.

Optionally, the acquisition module is further used to acquire the first operating state of the terminal device;

The device also includes: a starting module;

The startup module is used to start the HTTP interface service when the target running state is the first startup state;

The sending module is further configured to send a first connection request to the signaling server when the target running state is the first startup state, so that the signaling server establishes a first MQTT connection relationship according to the first connection request.

Optionally, the device further comprises: an opening module;

The opening module is used to open the network access channel and the access timer;

The device further comprises: a processing module;

The processing module is used to update the timing duration of the access timer, and the access timer is used to record the opening duration of the network access channel;

The device further comprises: a judgment module;

The judging module is used to judge whether the current timing duration of the access timer is a preset idle timeout duration;

The device further comprises: a closing module;

The closing module is used to close the network access channel when the current timing duration of the access timer is a preset idle timeout duration;

The judging module is further configured to judge, when the current timing duration of the access timer is not the preset idle timeout duration, whether the current timing duration reaches the preset usage duration, and the preset idle timeout duration is less than the preset usage duration;

The closing module is further configured to close the network access channel when the current timing duration reaches a preset usage duration.

In a fifth aspect, the present application provides a device for establishing a network access channel, which is applied to a proxy server, and the device includes:

An acquisition module, used to acquire an address change instruction sent by a signaling server;

A processing module, used for updating the first address storage of the proxy server according to the address change instruction;

The acquisition module is also used to acquire the target query information sent by the client;

A determination module, configured to determine a target query result according to the target query information and the first address memory;

A sending module, used for sending the target query result to the signaling server, so that the signaling server forwards the target query result to the client;

The acquisition module is further used to acquire the network channel creation instruction sent by the client;

A generating module, used for generating a remote access address according to the network channel creation instruction;

The sending module is further used to send the remote access address to the signaling server, so that the signaling server forwards the remote access address to the terminal device and the client respectively.

In a sixth aspect, the present application provides a device for establishing a network access channel, which is applied to a client, and the device includes:

An acquisition module, used for acquiring a second running state of the client;

A sending module, configured to send target query information to the proxy server and send a second connection request to the signaling server when the second operating state is a second startup state, so that the signaling server establishes a second MQTT connection relationship according to the second connection request;

The acquisition module is further used to obtain the target query result sent by the signaling server;

A processing module, used for updating the second address storage of the client according to the target query result;

The acquisition module is further used to acquire the current network environment of the client;

A generating module, configured to generate a network channel creation instruction according to the mobile network environment when the current network environment is a mobile network environment;

The sending module is also used to send the network channel creation instruction to the proxy server, so that the proxy server establishes a network access channel according to the network channel creation instruction.

Optionally, the processing module is further configured to, when the current network environment is a Wi-Fi network environment, use a target detection method to perform detection processing on the second address memory to obtain a target detection result, wherein the target detection result is used to indicate whether the client and the terminal device are in the same local area network;

The generating module is further configured to generate the network channel creating instruction according to the Wi-Fi network environment when the address detection result indicates that the client and the terminal device are not in the same local area network.

Optionally, the acquisition module is further used to acquire the remote access address sent by the signaling server;

The processing module is further used to store and process the remote access address so that the client can remotely access the terminal device according to the remote access address.

In a seventh aspect, the present application provides a device for establishing a network access channel, including:

Memory;

processor;

Wherein, the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory to implement the method for establishing a network access channel as described in the first aspect and various possible implementations of the first aspect.

In an eighth aspect, the present application provides a computer storage medium having computer execution instructions stored thereon, wherein the computer execution instructions are executed by a processor to implement the method for establishing a network access channel as described in the first aspect and various possible implementations of the first aspect.

The method for establishing a network access channel provided by the present application is that when a change in the IP address of a terminal device is detected, the terminal device will first generate a new address instruction and send it to the proxy server through the signaling server so that the proxy server can update its stored IP address in time, and then when it is determined that the client is in the startup state, the second address storage of the client is updated through the proxy server, and finally when it is determined that the current network environment of the client is a mobile network environment, the proxy server and the signaling server will jointly build a network access channel. This method solves the problems in the prior art that the MQTT protocol relies on the proxy server to transmit data, violates the local storage principle, increases the risk of information leakage, and lacks a flexible adaptation mechanism when switching the network environment, thereby improving the efficiency and stability of network communication, thereby providing users with a smoother network experience.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

FIG1 is a flowchart of a method for establishing a network access channel provided by the present application;

FIG2 is a second flowchart of the method for establishing a network access channel provided by the present application;

FIG3 is a flowchart of a method for establishing a network access channel provided by the present application;

FIG4 is a first structural diagram of a device for establishing a network access channel provided by the present application;

FIG5 is a second structural diagram of the device for establishing a network access channel provided by the present application;

FIG6 is a third structural diagram of the device for establishing a network access channel provided by the present application;

FIG. 7 is a schematic diagram of the structure of a device for establishing a network access channel provided in the present application.

The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein, for example.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

First, the terms involved in this application are explained.

IP address (Internet Protocol Address): IP address refers to the Internet Protocol address, which is also translated as Internet Protocol address. It is a unified address format provided by the IP protocol, which is used to assign a logical address to each network and each host on the Internet to shield the difference in physical addresses. In simple terms, the IP address is like a "house number" in the network world, which allows computers to recognize and communicate with each other.

For terminal devices (such as smartphones, smart TVs, smart speakers, smart printers, etc.), their IP address refers to the unique identifier of the device in the network. When a device is connected to the Internet, it is assigned an IP address, which usually consists of four groups of numbers, each separated by a dot (.). For example, a typical IPv4 address may look like this: 192.168.1.1. This address is used to identify the location of the device in the network and allow other devices to communicate with it.

With the rapid development of Internet of Things (IoT) technology, the intelligence level of terminal devices has been significantly improved, which has led to an increasing demand for terminal devices with intelligent operating systems (such as smart TVs, smart speakers, smart printers, etc.) in homes and offices. In order to meet these needs and complex business scenarios, such as file transfer and local playback of video resources, the MQTT protocol has been widely adopted. This protocol can achieve interconnection between terminal devices and clients, promote data sharing and collaborative work, and thus bring users a more intelligent and convenient way of life and work.

However, the existing MQTT protocol usually has the following disadvantages when transmitting data:

1. Inability to process data locally: When dealing with complex business scenarios, files usually need to be uploaded to a proxy server for transfer. This method violates the principle of local storage of user information and may lead to leakage of user information.

2. Server resource occupation: Since file data needs to be transferred through the server, this undoubtedly increases the server's bandwidth and storage burden, and increases operating costs.

3. Poor operational interaction experience: When users require business operations with immediate responses, they may not be able to obtain results quickly due to signaling delays, which affects the user experience.

4. Inability to flexibly switch networks: In LAN and other network environments, the access methods of clients and terminal devices cannot be flexibly switched, which makes it impossible for us to fully utilize the high-speed access advantages of the LAN.

Therefore, it is urgent to propose an effective solution to the problems in the existing technology that the MQTT protocol relies on proxy servers to transmit data, violates the local storage principle, increases the risk of information leakage, and lacks a flexible adaptation mechanism when switching network environments.

In response to the above problems, the present application provides a method for establishing a network access channel. When a change in the IP address of a terminal device is detected, the terminal device will first generate a new address instruction and send it to the proxy server through a signaling server so that the proxy server can update its stored IP address in a timely manner. Then, when it is determined that the client is in the startup state, the second address memory of the client is updated through the proxy server. Finally, when it is determined that the current network environment of the client is a mobile network environment, the proxy server and the signaling server will jointly build a network access channel. This method solves the problems in the prior art that the MQTT protocol relies on a proxy server to transmit data, violates the local storage principle, increases the risk of information leakage, and lacks a flexible adaptation mechanism when switching network environments, thereby improving the efficiency and stability of network communications, thereby providing users with a smoother network experience.

The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

FIG1 is a flowchart of a method for establishing a network access channel provided by the present application. As shown in FIG1 , a method for establishing a network access channel shown in this embodiment includes:

S101: The terminal device obtains local area network information of the terminal device, and the local area network information includes: an IP address.

Among them, by obtaining the local area network information of the terminal device, the identity of the terminal device in the local area network, that is, the IP address, can be obtained, so as to realize the communication interaction between the terminal device and the client according to the IP address.

As you can understand, the IP address is the unique identifier of the terminal device in the network, which allows other devices to accurately find and communicate with it within the local area network. Therefore, by obtaining the local area network information of the terminal device, the terminal device can build a complete network communication environment to ensure that it can communicate and interact with other devices or clients stably and effectively. In addition, the client also needs to understand the network configuration information of the terminal device in order to correctly establish a connection, send requests and receive responses from the terminal device.

The method of obtaining the local area network information of the terminal device can be, for example, by calling a programming interface, or by obtaining it from a DHCP server, or by using ARP (Address Resolution Protocol) to query the IP address of the terminal device in the local area network. This application does not impose any restrictions on this.

Optionally, before obtaining the local area network information of the terminal device, the steps that the terminal device needs to perform include but are not limited to the following: obtaining the first operating state of the terminal device, and when the target operating state is the first startup state, starting the HTTP interface service, and sending a first connection request to the signaling server, so that the signaling server establishes a first MQTT connection relationship according to the first connection request.

The first operation state is used to indicate the operation state of the terminal device at the current moment, such as shutdown state and startup state. The HTTP interface service refers to a service based on the HTTP protocol, which allows the terminal device to communicate and exchange data with the client through HTTP requests and responses. The first connection request is used to indicate a request to establish an MQTT connection relationship with the signaling server.

Since the operating status is a direct reflection of the working status of the terminal device, and it contains key information such as the current working status and resource usage of the terminal device, by acquiring the first operating status in real time, the terminal device can accurately grasp its own working status at the current moment, so that the terminal device can self-adjust according to actual conditions.

The first operating state of the terminal device may be obtained by, for example, querying the application log of the terminal device, or by hardware sensors, or by using a third-party system monitoring tool (such as Zabbix, Nagios, Prometheus, etc.). This application does not impose any special restrictions on this.

After confirming that the terminal device is in the startup state, in order to ensure that the terminal device can exchange messages and instructions with the signaling server in real time, the terminal device will actively send a first connection request to the signaling server to establish a communication connection based on the MQTT protocol. In this way, the terminal device and the signaling server can communicate efficiently in real time.

However, in order for the client (such as the user's mobile phone or computer) to easily access the terminal device and exchange data with it, the terminal device also needs to provide HTTP interface services. This means that the client can query the status of the terminal device, send control instructions, etc. by sending HTTP requests.

It is understandable that since MQTT is a lightweight message queue telemetry transmission protocol suitable for device-to-device communication in the Internet of Things (IoT) scenario, when the terminal device establishes an MQTT connection with the signaling server, the signaling server acts as a bridge between the terminal device and the MQTT communication protocol, thereby ensuring smooth and real-time communication.

At the same time, since the HTTP interface service is a function provided by the terminal device, it enables the terminal device to communicate and exchange data with external systems (such as clients) through the HTTP protocol. This service allows the device to respond to requests from the client and send data or perform operations. Therefore, in order for the client to communicate and exchange data with it through the HTTP protocol, the HTTP interface service needs to be started.

For example, suppose there is a smart home system that includes a smart light bulb as a terminal device and a user's mobile phone as a client. The user sends instructions to the smart light bulb through the mobile app to control its on/off state. This system communicates based on the MQTT protocol, and the mobile app interacts with the smart light bulb through the HTTP interface.

The smart bulb is connected to the home Wi-Fi network for the first time and has obtained the IP address 192.168.1.100. An MQTT connection has been established between the mobile app and the smart bulb, and they can communicate normally through the HTTP interface.

S102: The terminal device detects in real time whether the IP address has changed, and determines a new IP address of the terminal device when the IP address has changed.

The purpose of detecting whether the IP address of the terminal device has changed is to determine whether the communication connection between the terminal device and the client is interrupted.

It is understandable that since the IP address is the unique identifier of the network device in the network, and the communication connection is established based on these IP addresses, it is necessary to detect in real time whether the IP address of the terminal device has changed to avoid communication failure between the terminal device and the client.

If it is detected that the IP address of the terminal device has changed, it indicates that the communication connection between the terminal device and the client has been interrupted. At this time, the new IP address of the terminal device can be determined.

If it is detected that the IP address of the terminal device has not changed, it indicates that the communication connection between the terminal device and the client has not been interrupted. At this time, the terminal device and the client can communicate and exchange data based on the IP address.

For example, suppose that in a smart home system, the home Wi-Fi network is reconfigured and the IP address of the smart light bulb is changed from 192.168.1.100 to 192.168.1.105. At this time, the mobile app still tries to communicate with the smart light bulb through the old IP address 192.168.1.100, so the mobile app can no longer establish a communication connection with the smart light bulb through the old IP address.

S103: The terminal device generates an address change instruction according to the new IP address.

The address change instruction is used to instruct to update the currently stored IP address.

When the IP address of a terminal device changes, since the components that communicate with it (such as signaling servers, clients, etc.) still store the old IP address information, in order to enable these components to continue to communicate with the terminal device, it is necessary to generate an address change instruction to notify the components related to the terminal device about the change in the IP address of the terminal device.

It is understandable that a change in IP address may cause communication interruption because the old connection is established based on the old IP address. Therefore, by generating a change address instruction, the terminal device can actively notify other components to update the connection, thereby ensuring the continuity of communication.

At the same time, if other components are not notified after the IP address is changed, these components may try to communicate with the terminal device using the old IP address, resulting in communication failure. Therefore, generating a change address instruction can reduce the possibility of such communication failure.

S104: The terminal device sends the address change instruction to the signaling server.

Among them, the functions of the signaling server include: providing MQTT device connection capabilities to the outside world, and being responsible for receiving and forwarding MQTT messages.

After completing the IP address change, the terminal device will actively send an address change instruction containing the new IP address information to the signaling server, so that the signaling server will forward the address change instruction from the terminal device to other related components (such as the proxy server) that need to know the new IP address of the terminal device.

It is understandable that since the signaling server is designed to be responsible for receiving and forwarding MQTT messages, and for performance reasons does not involve operations such as data storage, when the terminal device sends an address change instruction, the signaling server will not store this information, but will immediately forward it to all other related components that need to update the IP address information.

In this process, the signaling server acts like a message agent, helping to transmit address change instructions between terminal devices and clients to ensure the continuity and correctness of communication. In this way, the system can efficiently handle IP address changes without involving complex storage operations.

S105: The signaling server forwards the address change instruction to the proxy server.

The functions of the proxy server include: storing terminal device status information.

When the signaling server receives the address change instruction from the terminal device, it will not store the instruction information on its own server because it does not involve data storage operations. Instead, the signaling server will forward the instruction to the proxy server so that the proxy server can store the changed IP address.

It can be understood that the notification and update of the terminal device IP address change are realized through the collaborative work of the signaling server and the proxy server. The status information of the terminal device can be updated in time on the proxy server, ensuring the continuity and accuracy of communication. At the same time, since the signaling server does not involve database storage operations, it can focus on the rapid forwarding of messages, improving the performance of the entire system.

S106: The proxy server updates the first address memory of the proxy server according to the address change instruction.

The first address memory is used to record the IP address of the terminal device.

When the proxy server receives the address change instruction from the signaling server, it will update its internal first address memory accordingly according to the new IP address information provided in the instruction to ensure smooth and real-time communication.

It is understandable that the proxy server does not statically store the IP address information of the terminal device. When the terminal device moves, reconnects to the network, or its IP address changes due to other reasons, the proxy server needs to know these changes and update its internally stored information accordingly to provide the client with accurate and reliable IP address information, thereby ensuring smooth and real-time communication.

S107: The client obtains a second operating state of the client.

The second running state is used to indicate the running state of the client at the current moment, such as the closed state and the started state.

By acquiring the second operating status in real time, the client can grasp the information of its own operating status at the current moment, so that the client can determine whether it has a communication demand according to the actual situation.

It is understandable that by acquiring the second operating status in real time, the client can accurately grasp its own performance and resource utilization at the current moment, and thus can determine whether communication is required based on these conditions.

The second operation status of the client can be obtained by, for example, calling an application program interface or by viewing a log file, and this application does not impose any special restrictions on this.

S108: When the second running state is a second starting state, the client sends the target query information to the proxy server.

The target query information refers to obtaining the IP address of the terminal device that is associated with the client.

In order to ensure that the terminal device IP address stored in the client is the latest, the client needs to actively send a target query message to a server storing the terminal device IP address after startup to determine whether the terminal device IP address stored in the client needs to be updated.

It is understandable that after confirming that the client's running status is in the startup state, in order to ensure smooth communication between the client and the terminal device, the client needs to actively initiate a target query request and send this request to the server where the terminal device IP address is stored to ensure that the terminal device IP address currently stored by the client is in a valid state.

S109: The client sends a second connection request to the signaling server.

The second connection request is used to indicate a request to establish an MQTT connection relationship with the signaling server.

The purpose of the client sending the second connection request to the signaling server is to establish a communication connection based on the MQTT protocol.

It is understandable that once it is confirmed that the client has been started, in order to ensure real-time message and instruction exchange with the proxy server, the client will actively send a second connection request to the signaling server to ensure that the client can communicate with the proxy server efficiently and in real time with the support of the signaling server.

S110: The signaling server establishes a second MQTT connection relationship according to the second connection request.

Among them, by establishing the second MQTT connection, it means that the terminal device can communicate with the proxy server efficiently and in real time with the support of the signaling server, thereby achieving fast data transmission and instruction execution.

It can be understood that by successfully establishing this connection, not only the real-time communication and the rapid transmission of data can be ensured, but also a continuous and stable communication connection can be maintained between the client and the signaling server, making the communication more efficient and reliable.

S111: The proxy server determines a target query result according to the target query information and the first address storage.

When the proxy server receives the target query information, it uses the query information as a query standard and performs a matching search in the first address memory, thereby determining the latest IP address of the terminal device associated with the client.

It is understandable that the proxy server determines the target query result based on the target query information and the first address storage to ensure that the client can obtain the latest IP address information of the terminal devices with which it has direct communication needs or business associations, thereby achieving real-time and accurate communication with these terminal devices.

S112: The proxy server sends the target query result to the signaling server.

Among them, since the proxy server does not have the function of managing device connections and sending MQTT messages, the signaling server has the function of receiving and forwarding requests and messages from different components (such as clients and proxy servers). Therefore, by using the signaling server, the proxy server can not only ensure that the target query results are delivered to the client in a reliable and effective manner, but also ensure the security and reliability of data transmission.

S113: The signaling server forwards the target query result to the client.

In order to ensure that the client can correctly obtain the IP address information of the terminal device associated with it, the signaling server will receive the target query result sent by the proxy server and forward it to the client.

It can be understood that the signaling server, as an intermediate link in communication, is responsible for transmitting the target query results obtained by the proxy server (i.e., the IP address information of the terminal device associated with the client) to the client, which not only ensures that the client can obtain the data it needs, but also ensures the security of the data and the reliability of communication.

S114: The client updates the second address storage of the client according to the target query result.

The second address memory is used to record the IP address of the terminal device.

When the client receives the target query result sent from the signaling server, it will update its internal second address memory accordingly based on the new IP address information provided in the result to ensure smooth and real-time communication.

It is understandable that the client does not statically store the IP address information of the terminal device. When the terminal device moves, reconnects to the network, or its IP address changes due to other reasons, the client needs to know these changes and update its internally stored information accordingly.

In addition, the second address memory is updated to ensure that when the terminal device and the client need to communicate with the terminal device next time, the client uses the latest and correct IP address, thereby avoiding communication interruption or delay caused by using an outdated or wrong IP address.

S115: The client obtains a current network environment of the client, and when the current network environment is a mobile network environment, generates a network channel creation instruction according to the mobile network environment.

The current network environment is used to indicate the network connection mode of the client at the current moment, such as Wi-Fi network environment and mobile network environment. The network channel creation instruction is used to indicate a request to create a remote access connection with a terminal device.

By obtaining the client's current network environment, the client can understand the conditions and limitations of data transmission, and can decide which data transmission strategy to adopt based on the network environment. For example, in a Wi-Fi network environment, the client may choose to send data through a local area network; while in a 4G network environment, the client may use a remote connection to achieve data transmission.

The current network environment of the client can be obtained by, for example, calling a network-related API interface or by checking a listener, and this application does not impose any special restrictions on this.

When it is determined that the client is started and the network environment used is a mobile network environment, it means that the terminal device and the client cannot communicate directly. In order to avoid communication interruption, it is necessary to generate a network channel creation instruction based on the mobile network environment.

It is understandable that the communication methods within different LANs involve data communications across multiple physical network ranges. Therefore, when it is determined that the terminal device and the client are located in different LANs, it is necessary to select the communication method that best suits the current network conditions for connection and data transmission, thereby ensuring smooth communication between the terminal device and the client, thereby ensuring the reliability of data transmission.

S116: The client sends the network channel creation instruction to the proxy server.

Among them, since the proxy server is responsible for storing the terminal device status information, by sending the network channel creation instruction to the proxy server, the client can ensure that the network channel creation instruction is correctly processed and executed, thereby ensuring smooth and reliable network communication.

It can be understood that by sending the network channel creation instruction to the proxy server, it not only ensures that the proxy server can correctly process and maintain the status information of the terminal device, but also helps to reduce communication failures and delays, thereby improving the overall performance of network communications.

S117: The proxy server generates a remote access address according to the network channel creation instruction.

Among them, when the proxy server receives the network channel creation instruction sent by the client, it will process and analyze the network channel creation instruction to obtain a remote access address with an identity identifier, thereby achieving the correctness and security of communication between the terminal device and the client.

As you can understand, by generating remote access addresses, proxy servers can provide an additional layer of security. For example, a proxy server can generate a temporary, encrypted access address that can only be accessed by clients with the appropriate permissions and credentials. This mechanism can prevent unauthorized access and malicious attacks.

S118: The proxy server sends the remote access address to the signaling server.

Among them, since the proxy server does not have the function of managing device connections and issuing MQTT instructions, while the signaling server is responsible for receiving and forwarding MQTT messages, by sending the remote access address to the signaling server, the proxy server can not only utilize the intermediary function and additional security/reliability features of the signaling server, but also ensure the efficient transmission of data between different components, thereby ensuring smooth and secure communication.

S119: The signaling server sends the remote access address to the client.

Among them, the remote access address can be regarded as an access credential, which enables the visitor (ie, the client) to carry security authentication information (such as a token or key) when accessing a specific terminal device. Therefore, by sending the remote access address to the client, it can not only ensure that the client can have secure access to the terminal device, but also prevent the terminal device from being accessed by unauthorized devices, thereby ensuring efficient and stable network communication.

Optionally, after the signaling server sends the remote access address to the client, the steps that the client needs to perform include but are not limited to the following: obtaining the remote access address sent by the signaling server, and storing and processing the remote access address so that the client can remotely access the terminal device according to the remote access address.

Among them, the client obtains the remote access address sent by the signaling server and stores and processes it, which means that it obtains access rights or credentials to the terminal device, thereby ensuring that only authorized devices can access the terminal device, thereby enhancing the security and reliability of network communications.

It is understandable that during the communication and interaction between the client and the terminal device, only the device holding the valid remote access address can access the terminal device. This mechanism not only prevents unauthorized devices from accessing, but also significantly enhances the security of network communications.

S120: The signaling server forwards the remote access address to the terminal device.

Among them, since the generated remote access address has an identity identifier, when performing communication access, in order to ensure reliable communication between the visitor (i.e., the client) and the visited (i.e., the terminal device), the remote access address needs to be sent to the terminal device so that the terminal device can only be accessed by the client with corresponding permissions and credentials.

It can be understood that after the proxy server generates the remote access address, it first sends this address to the signaling server, and then the signaling server forwards the received remote access address to the terminal device, which not only ensures that the remote access address is correctly processed and transmitted in the system, but also ensures smooth and secure communication.

S121: The terminal device establishes a network access channel according to the remote access address.

In order to ensure reliable communication between the terminal device and the client, the terminal device needs to establish a network access channel based on the received remote access address. This channel is a bridge for data transmission between the two. It not only avoids interruptions in network communication, but also ensures that data can be safely and accurately transmitted from the terminal device to the client, or from the client to the terminal device.

Optionally, when the terminal device completes establishing the network access channel, the client needs to determine whether the channel usage status of the network access channel is available to ensure that the client and the terminal device can exchange information. Therefore, the steps that the client needs to perform include but are not limited to the following: detecting and processing the channel status of the network access channel to obtain the channel usage status, and when the usage status is the available status, obtaining the service request instruction sent by the user, and generating a target network request based on the service request instruction and the remote access address; and remotely accessing the terminal device based on the target network request.

The channel usage status includes: available status and unavailable status. Available status means that the network access channel has been established and is running normally, allowing the client and terminal device to transmit data. Unavailable status means that the network access channel cannot be established or has been interrupted for some reason, and the client and terminal device are not allowed to transmit data.

It is understandable that when the channel status of the network access channel is available, the client can send and receive data through the channel, and the terminal device can respond to the client's request normally. Conversely, when the channel status of the network access channel is unavailable, the client may not be able to connect to the terminal device, or even if the connection is successful, data transmission may not be possible.

When the proxy server generates a remote access address and passes it to the terminal device through the signaling server, the terminal device will work with the proxy server based on this address to establish a network access channel. However, since it takes a certain amount of time for the channel to be created and become available, this means that during this period of time, communication and interaction between the client and the terminal device cannot be carried out. In order to ensure reliable communication between the client and the terminal device, the network access channel must be detected and processed.

When the usage status of the network access channel is available, it means that network communication can be carried out between the terminal device and the client. At this time, in order to meet the user's specific needs or perform specific operations, the service request instructions sent by the user are obtained, and the service request instructions and the remote access address are comprehensively considered to generate a target network request to realize the client's remote access to the terminal device.

The method for establishing a network access channel provided in this embodiment, after obtaining the local area network information of the terminal device, can firstly perform real-time detection on the IP address in the local area network information, then after determining that the IP address has changed, generate an address change instruction with a new IP address, and send the address change instruction to the proxy server through the signaling server, so that the proxy server updates the IP address stored internally therein, then, after determining that the running state of the client is the startup state, and after the client sends the target query information to the proxy server, the proxy server can send the target query result corresponding to the target query information to the signaling server, so that the signaling server forwards the target query result to the client, then, the client updates the IP address stored internally therein, and when determining that the current network environment of the client is a mobile network environment, sends the network channel creation instruction to the proxy server, then, after the proxy server generates a remote access address corresponding to the network channel creation instruction, sends the remote access address to the client and the terminal device respectively through the signaling server, finally, the client stores the remote access address, and the terminal device establishes a network access channel under the action of the proxy server.

This method solves the problems in the existing technology that the MQTT protocol relies on proxy servers to transmit data, violates the local storage principle, increases the risk of information leakage, and lacks a flexible adaptation mechanism when switching network environments, thereby improving the efficiency and stability of network communications, thereby providing users with a smoother network experience.

FIG2 is a flowchart of the method for establishing a network access channel provided by the present application. This embodiment is based on the embodiment of FIG1 and describes in detail the specific implementation process of the terminal device after establishing the network access channel. As shown in FIG2, the method for establishing a network access channel shown in this embodiment includes:

S201: The terminal device opens a network access channel and an access timer, and updates the timing duration of the access timer of the terminal device. The access timer is used to record the opening duration of the network access channel.

Among them, the purpose of the terminal device opening the network access channel is to realize communication and data exchange with the client, and the purpose of opening the access timer is to better manage and monitor the opening time of the network access channel to ensure the reliability, efficiency and security of network communication.

It is understandable that in order to ensure that the terminal device can provide services externally or receive requests from the client, it is necessary to open the network access channel after the network access channel is established, so as to realize data interaction.

By recording the length of time a channel is open, the end device can better manage its network resources. If a channel is not used for a long time, the end device may choose to close it to free up resources for other tasks.

S202: Determine whether the current timing duration of the access timer is the preset idle timeout duration; if so, execute step S203; if not, execute step S204.

The preset idle timeout period is, for example, 5S.

The purpose of judging whether the current timing duration of the access timer is the preset idle timeout duration is to determine whether the network access channel is used by the client and the terminal device.

If the current timing duration of the access timer is the preset idle timeout duration, it indicates that the network access channel is not used by the client and the terminal device. At this time, the network access channel can be closed.

If the current timing duration of the access timer is not the preset idle timeout duration, it indicates that the network access channel is used by the client and the terminal device. At this time, it can be determined whether the current timing duration of the access timer reaches the preset usage duration.

S203: Close the network access channel.

Among them, when the current timing duration of the access timer reaches the preset idle timeout duration, it indicates that the network access channel is not used by the client and terminal device. At this time, in order to improve resource utilization and recycle network resources in time, the network access channel needs to be closed.

S204: Determine whether the current timing duration reaches the preset usage duration; if so, execute step S203; if not, execute step S204.

The preset idle timeout duration is less than the preset usage duration, which may be 10 minutes, for example.

The purpose of judging whether the current timing duration of the access timer reaches the preset usage duration is to determine whether the opening duration of the network access channel reaches the closing duration of the network access channel.

If the current timing duration of the access timer reaches the preset usage duration, it indicates that the opening duration of the network access channel has reached the closing duration of the network access channel. At this time, the network access channel can be closed.

If the current timing duration of the access timer does not reach the preset usage duration, it indicates that the opening duration of the network access channel has not reached the closing duration of the network access channel. At this time, it can continue to determine whether the current timing duration of the access timer reaches the preset usage duration.

The method for establishing a network access channel provided in an embodiment of the present application, after the terminal device establishes the network access channel, first, starts the network access channel and the access timer, and updates the timing duration of the access timer; secondly, when the current timing duration of the access timer is a preset idle timeout duration, closes the network access channel, or when the current timing duration of the access timer is not the preset idle timeout duration and the current timing duration reaches the preset usage duration, closes the network access channel.

By using the access timer, the terminal device can more effectively manage its network resources, so that when the network access channel is not used for a long time, closing the channel can release the occupied resources, thereby improving the utilization efficiency of the network access channel. In addition, by setting a preset idle timeout duration and a preset usage duration, the opening time of the network access channel is limited, thereby reducing the risk of network attacks or data leaks.

FIG3 is a flowchart of the third method for establishing a network access channel provided by the present application. As shown in FIG3, this embodiment is based on the embodiment of FIG2, and describes in detail the specific implementation process of the communication between the terminal device and the client when the current network environment of the client is a Wi-Fi network environment. The method for establishing a network access channel provided by this embodiment includes:

S301: Detect and process the second address memory of the client using a target detection method to obtain a target detection result, wherein the target detection result is used to indicate whether the client and the terminal device are in the same local area network; if so, execute step S303; if not, execute step S302.

After determining that the network environment of the client is a network environment, in order to determine whether the client and the terminal device are in the same local area network, it is necessary to use a target detection method to perform detection processing on the second address memory.

It can be understood that the same local area network means that the terminal device and the client are connected to the same network switch or router and share the same network address space. Therefore, in this network environment, the terminal device and the client can communicate by directly sending and receiving data packets.

On the contrary, different local area networks refer to a Wi-Fi network used by the terminal device and another Wi-Fi network used by the client. Therefore, in this network environment, the terminal device and the client cannot communicate directly and need to choose the communication method that best suits the current network conditions to connect and transmit data.

If the target detection result indicates that the client and the terminal device are in the same local area network, it means that the client and the terminal device are in the same local area network. At this time, the service request instruction sent by the user can be obtained.

If the target detection result indicates that the client and the terminal device are not in the same local area network, it means that the client and the terminal device are not in the same local area network. At this time, a network channel creation instruction can be generated according to the client's Wi-Fi network environment.

S302: Generate a network channel creation instruction according to the Wi-Fi network environment.

In order to ensure a stable communication path between the terminal device and the client, it is necessary to generate a network channel creation instruction based on the client's Wi-Fi network environment.

It can be understood that when it is determined that the client and the terminal device are not in the same local area network, it means that they are connected to different Wi-Fi networks, so the terminal device and the client cannot communicate directly. Therefore, in order to ensure that a reliable network communication channel can be established between them, it is necessary to generate a network channel creation instruction so that the terminal device can establish a network access channel according to the network channel creation instruction.

S303: Obtain the service request instruction sent by the user.

The purpose of obtaining the service request instructions sent by the user is to respond to and process these requests to meet the user's specific needs or perform specific operations.

It can be understood that when it is determined that the client and the terminal device are in the same local area network, it means that the terminal device and the client can communicate directly without the need for additional terminal operations. At this time, in order to meet the user's specific needs or perform specific operations, it is necessary to obtain the service request instructions sent by the user.

The method for establishing a network access channel provided in an embodiment of the present application, after determining that the current network environment of the client is a Wi-Fi network environment, uses a target detection method to detect and process the second address memory to determine whether the client and the terminal device are in the same local area network. When it is determined that the client and the terminal device are not in the same local area network, a network channel creation instruction is generated according to the current Wi-Fi network environment of the client.

This method ensures that the terminal device and the client can communicate reliably in a complex network environment by comprehensively considering the client's network environment, thereby enhancing the flexibility and efficiency of communication, making the entire communication process clearer, more efficient and smoother.

FIG4 is a schematic diagram of the structure of the device for establishing a network access channel provided by the present application. Applicable to a terminal device. As shown in FIG4, the present application provides a device for establishing a network access channel, and the device for establishing a network access channel 400 includes:

The acquisition module 401 is used to acquire the local area network information of the terminal device, and the local area network information includes: an IP address;

A detection module 402 is used to detect in real time whether the IP address has changed;

A determination module 403, configured to determine a new IP address of the terminal device when the IP address changes;

A generating module 404, configured to generate an address change instruction according to the new IP address;

A sending module 405, configured to send the change address instruction to a signaling server, so that the signaling server forwards the change address instruction to a proxy server;

The acquisition module 401 is further used to acquire the remote access address sent by the signaling server;

The establishing module 406 is used to establish a network access channel according to the remote access address.

Optionally, the acquisition module 401 is further used to acquire a first operating state of the terminal device;

The device further comprises: a starting module 407;

The startup module 407 is used to start the HTTP interface service when the target running state is the first startup state;

The sending module 405 is further configured to send a first connection request to the signaling server when the target running state is the first startup state, so that the signaling server establishes a first MQTT connection relationship according to the first connection request.

Optionally, the device further includes: an opening module 408;

The opening module 408 is used to open the network access channel and the access timer;

The device further includes: a processing module 409;

The processing module 409 is used to update the timing duration of the access timer, and the access timer is used to record the opening duration of the network access channel;

The device further includes: a determination module 410;

The judging module 410 is used to judge whether the current timing duration of the access timer is a preset idle timeout duration;

The device further comprises: a closing module 411;

The closing module 411 is used to close the network access channel when the current timing duration of the access timer is a preset idle timeout duration;

The judging module 410 is further configured to judge whether the current timing duration of the access timer reaches a preset usage duration when the current timing duration of the access timer is not a preset idle timeout duration, and the preset idle timeout duration is less than the preset usage duration;

The closing module 411 is further configured to close the network access channel when the current timing duration reaches a preset usage duration.

FIG5 is a second structural diagram of a device for establishing a network access channel provided by the present application. Applicable to a proxy server. As shown in FIG5 , the present application provides a device for establishing a network access channel, and the device for establishing a network access channel 500 includes:

The acquisition module 501 is used to acquire the address change instruction sent by the signaling server;

A processing module 502, configured to update the first address storage of the proxy server according to the address change instruction;

The acquisition module 501 is also used to acquire target query information sent by the client;

A determination module 503, configured to determine a target query result according to the target query information and the first address memory;

A sending module 504 is used to send the target query result to the signaling server, so that the signaling server forwards the target query result to the client;

The acquisition module 501 is further used to acquire the network channel creation instruction sent by the client;

A generating module 505, configured to generate a remote access address according to the network channel creation instruction;

The sending module 504 is further configured to send the remote access address to the signaling server, so that the signaling server forwards the remote access address to the terminal device and the client respectively.

FIG6 is a third structural diagram of a device for establishing a network access channel provided by the present application. Applied to a client. As shown in FIG6 , the present application provides a device for establishing a network access channel, and the device for establishing a network access channel 600 includes:

An acquisition module 601 is used to acquire a second operation state of the client;

A sending module 602 is used to send target query information to the proxy server and send a second connection request to the signaling server when the second operating state is the second startup state, so that the signaling server establishes a second MQTT connection relationship according to the second connection request;

The acquisition module 602 is further used to acquire the target query result sent by the signaling server;

The processing module 603 is used to update the second address storage of the client according to the target query result;

The acquisition module 601 is further used to acquire the current network environment of the client;

A generating module, configured to generate a network channel creation instruction according to the mobile network environment when the current network environment is a mobile network environment;

The sending module 602 is further configured to send the network channel creation instruction to the proxy server, so that the proxy server establishes a network access channel according to the network channel creation instruction.

Optionally, the processing module 603 is further configured to, when the current network environment is a Wi-Fi network environment, use a target detection method to perform detection processing on the second address memory to obtain a target detection result, wherein the target detection result is used to indicate whether the client and the terminal device are in the same local area network;

The generating module 604 is further configured to generate the network channel creation instruction according to the Wi-Fi network environment when the address detection result indicates that the client and the terminal device are not in the same local area network.

Optionally, the acquisition module 601 is further used to acquire a remote access address sent by the signaling server;

The processing module 603 is further configured to store and process the remote access address, so that the client can remotely access the terminal device according to the remote access address.

FIG7 is a schematic diagram of the structure of a device for establishing a network access channel provided by the present application. As shown in FIG7 , the present application provides a device for establishing a network access channel, and the device 700 for establishing a network access channel includes: a receiver 701 , a transmitter 702 , a processor 703 , and a memory 704 .

Receiver 701, for receiving instructions and data;

A transmitter 702, used for sending instructions and data;

Memory 704, used to store computer-executable instructions;

The processor 703 is used to execute the computer-executable instructions stored in the memory 704 to implement the various steps executed by the training method for establishing a network access channel in the above embodiment. For details, please refer to the relevant description in the above embodiment of the training method for establishing a network access channel.

Optionally, the memory 704 may be independent or integrated with the processor 703 .

When the memory 704 is independently provided, the electronic device further includes a bus for connecting the memory 704 and the processor 703 .

The present application also provides a computer-readable storage medium, in which computer execution instructions are stored. When a processor executes the computer execution instructions, a training method for establishing a network access channel as performed by the training device for establishing a network access channel as described above is implemented.

It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules/units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (12)

1. A method for establishing a network access channel, applied to a terminal device, the method comprising:

Obtaining local area network information of terminal equipment, wherein the local area network information comprises: an IP address;

detecting whether the IP address changes in real time, and determining a new IP address of the terminal equipment when the IP address changes;

Generating an address changing instruction according to the new IP address, and sending the address changing instruction to a signaling server so that the signaling server forwards the address changing instruction to a proxy server;

And acquiring a remote access address sent by the signaling server, and establishing a network access channel according to the remote access address.

2. The method of claim 1, wherein prior to the obtaining the local area network information of the terminal device, the method further comprises:

acquiring a first running state of terminal equipment, starting HTTP interface service when the target running state is a first starting state, and sending a first connection request to the signaling server so that the signaling server establishes a first MQTT connection relation according to the first connection request.

3. The method of claim 1, wherein after establishing a network access channel based on the remote access address, the method further comprises:

Opening a network access channel and an access timer, and updating the timing duration of the access timer, wherein the access timer is used for recording the opening duration of the network access channel;

judging whether the current timing duration of the access timer is a preset idle timeout duration or not;

If yes, closing the network access channel;

If not, judging whether the current timing time length reaches a preset use time length, wherein the preset idle timeout time length is smaller than the preset use time length;

And closing the network access channel when the current timing duration reaches the preset use duration.

4. A method for establishing a network access channel, applied to a proxy server, the method comprising:

acquiring an address changing instruction sent by a signaling server, and updating a first address memory of the proxy server according to the address changing instruction;

Acquiring target query information sent by a client, and determining a target query result according to the target query information and the first address memory;

Sending the target query result to the signaling server so that the signaling server forwards the target query result to the client;

Acquiring a network channel creation instruction sent by the client, and generating a remote access address according to the network channel creation instruction;

and sending the remote access address to the signaling server so that the signaling server forwards the remote access address to the terminal equipment and the client respectively.

5. A method for establishing a network access channel, applied to a client, the method comprising:

Acquiring a second running state of the client, sending target query information to the proxy server when the second running state is a second starting state, and sending a second connection request to the signaling server so that the signaling server establishes a second MQTT connection relation according to the second connection request;

Acquiring a target query result sent by the signaling server, and updating a second address memory of the client according to the target query result;

Acquiring a current network environment of the client, and generating a network channel creation instruction according to a mobile network environment when the current network environment is the mobile network environment;

And sending the network channel creation instruction to the proxy server so that the proxy server establishes a network access channel according to the network channel creation instruction.

6. The method of claim 5, wherein the method further comprises:

when the current network environment is a Wi-Fi network environment, detecting the second address memory by adopting a target detection mode to obtain a target detection result, wherein the target detection result is used for indicating whether the client and the terminal equipment are in the same local area network or not;

And when the address detection result indicates that the client and the terminal equipment are not in the same local area network, generating the network channel creation instruction according to the Wi-Fi network environment.

7. The method of claim 6, wherein after generating the network channel creation instruction according to the current network environment, the method further comprises:

And acquiring a remote access address sent by the signaling server, and storing the remote access address so that the client can remotely access the terminal equipment according to the remote access address.

8. A device for establishing a network access channel, which is applied to a terminal device, and comprises:

The acquisition module is used for acquiring local area network information of the terminal equipment, wherein the local area network information comprises: an IP address;

The detection module is used for detecting whether the IP address is changed or not in real time;

A determining module, configured to determine a new IP address of the terminal device when the IP address changes;

the generation module is used for generating an address changing instruction according to the new IP address;

the sending module is used for sending the address changing instruction to a signaling server so that the signaling server forwards the address changing instruction to a proxy server;

the acquisition module is further used for acquiring a remote access address sent by the signaling server;

The establishing module is used for establishing a network access channel according to the remote access address.

9. A device for establishing a network access channel, which is applied to a proxy server, and comprises:

the acquisition module is used for acquiring the address changing instruction sent by the signaling server;

the processing module is used for updating the first address memory of the proxy server according to the address changing instruction;

The acquisition module is also used for acquiring target query information sent by the client;

The determining module is used for determining a target query result according to the target query information and the first address memory;

the sending module is used for sending the target query result to the signaling server so that the signaling server forwards the target query result to the client;

The acquisition module is further used for acquiring a network channel creation instruction sent by the client;

The generation module is used for generating a remote access address according to the network channel creation instruction;

The sending module is further configured to send the remote access address to the signaling server, so that the signaling server forwards the remote access address to the terminal device and the client respectively.

10. The device for establishing the network access channel is characterized by being applied to a client and comprising the following components:

The acquisition module is used for acquiring a second running state of the client;

the sending module is used for sending target query information to the proxy server and sending a second connection request to the signaling server when the second running state is a second starting state, so that the signaling server establishes a second MQTT connection relation according to the second connection request;

the acquisition module is further used for acquiring a target query result sent by the signaling server;

The processing module is used for updating the second address memory of the client according to the target query result;

the acquisition module is further used for acquiring the current network environment of the client;

The generation module is used for generating a network channel creation instruction according to the mobile network environment when the current network environment is the mobile network environment;

And the sending module is also used for sending the network channel creation instruction to the proxy server so that the proxy server establishes a network access channel according to the network channel creation instruction.

11. A network access channel establishment apparatus, comprising:

A memory;

A processor;

wherein the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored in the memory to implement the method of establishing a network access channel as claimed in any one of claims 1to 7.

12. A computer readable storage medium, wherein computer executable instructions are stored in the computer readable storage medium, which when executed by a processor is adapted to implement the method for establishing a network access channel according to any of claims 1-7.