CN110012552B - Wireless network emergency system and establishment method - Google Patents
Wireless network emergency system and establishment method Download PDFInfo
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- CN110012552B CN110012552B CN201810993626.5A CN201810993626A CN110012552B CN 110012552 B CN110012552 B CN 110012552B CN 201810993626 A CN201810993626 A CN 201810993626A CN 110012552 B CN110012552 B CN 110012552B
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Abstract
The invention is suitable for the wireless connection field, and provides a wireless network emergency system and an establishment method, wherein the system comprises: at least two network connection devices. The network establishment apparatus includes: the selection module is used for generating subnet connection information according to user input; the signal sending module is used for sending the subnet connection information so that the next network connection device can obtain the subnet connection information and is in communication connection with the current network connection device according to the subnet connection information; the signal receiving module is used for acquiring subnet connection information of a previous network connection device and is in communication connection with the previous network connection device according to the subnet connection information of the previous network connection device; and the password generation module is used for generating terminal connection information according to the user input. The invention can quickly establish the tunnel wireless network through a plurality of network connecting devices and improve the data transmission distance.
Description
Technical Field
The invention belongs to the field of wireless connection, and particularly relates to a wireless network emergency system and a building method.
Background
In the prior art, due to the complex tunnel environment, signals of a wireless network in the tunnel are often unstable, when the distance between the tunnels is long, the attenuation of the wireless signals is large, equipment or maintenance personnel at the far end of the tunnel cannot be connected with the networks, and therefore communication with the outside cannot be achieved.
Disclosure of Invention
In view of this, embodiments of the present invention provide a wireless network emergency system and an establishment method, so as to solve the problems in the prior art that when a tunnel distance is long, wireless signals are attenuated greatly, and a wireless connection cannot be established in time after a network is disconnected.
A first aspect of an embodiment of the present invention provides a wireless network emergency system, including at least two network connection devices, where the at least two network connection devices are communicatively connected, and each of the network connection devices includes: the device comprises a selection module, a signal receiving module, a signal sending module and a password generating module;
the selection module is used for generating subnet connection information according to user input;
the signal sending module is used for sending the subnet connection information so that the next network connection device can obtain the subnet connection information and is in communication connection with the current network connection device according to the subnet connection information;
the signal receiving module is used for acquiring subnet connection information of a previous network connection device and is in communication connection with the previous network connection device according to the subnet connection information of the previous network connection device;
and the password generation module is used for generating terminal connection information according to the input of the user.
Optionally, the subnet connection information includes: a service set identifier and a connection password;
the selection module is specifically configured to: and generating a service set identifier and a connection password according to the user input.
Optionally, the selecting module includes: a toggle switch element and an information generating unit;
the toggle switch element is used for toggling to a preset toggle position according to user input;
the information generating unit is used for generating a preset service set identifier and a preset connection password according to the preset shifting position;
the toggle switch element comprises at least two toggle positions.
Optionally, the signal sending module includes: a directional antenna;
the signal receiving module includes: an omnidirectional antenna.
Optionally, the signal sending module is further configured to:
and transmitting the terminal connection information through the directional antenna so that the terminal acquires the terminal connection information and is in network connection with the current network connection device according to the terminal connection information.
Optionally, the wireless network emergency system further includes: a power supply module;
the power supply module is used for supplying power to the selection module, the signal receiving module, the signal sending module and the password generation module.
A second aspect of an embodiment of the present invention provides a wireless network emergency setup method, which is applicable to a wireless network emergency system including at least two network connection devices, and includes:
the first network connection device generates first subnet connection information according to user input, and is a network connection device with a wireless network;
the second network connection device acquires the first subnet connection information and is in communication connection with the first network connection device according to the first subnet connection information;
and the second network connection device generates terminal connection information according to user input so that the terminal is in network connection with the second network connection device according to the terminal connection information.
Optionally, the first subnet connection information includes: a first service set identification and a first connection password;
the first network connection device comprises a first toggle switch element and a first information generation unit;
the first network connection device generating first subnet connection information according to a user input includes:
the first toggle switch element is toggled to a first toggle position according to user input;
and the first information generation unit generates a first service set identifier and a first connection password according to the first toggle position.
A third aspect of an embodiment of the present invention provides another wireless network emergency setup method, which is applicable to a wireless network emergency system including at least three network connection devices, and includes:
the first network connection device generates first subnet connection information according to user input, and is a network connection device with a wireless network;
the second network connection device acquires the first subnet connection information and is in communication connection with the first network connection device according to the first subnet connection information;
the second network connection device generates second subnet connection information according to the user input;
the third network connection device acquires the second subnet connection information and is in communication connection with the second network connection device according to the second subnet connection information;
and the third network connection device generates terminal connection information according to user input so that the terminal is in network connection with the third network connection device according to the terminal connection information.
Optionally, the second subnet connection information includes: a second service set identification and a second connection password;
the second network connection device comprises a second toggle switch element and a second information generation unit;
the second network connection device generating second subnet connection information according to the user input includes:
the second toggle switch element is toggled to a second toggle position according to user input;
and the second information generating unit generates a second service set identifier and a second connection password according to the second toggle position.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the system comprises at least two network connection devices, and the communication connection between each network connection device can improve the data transmission distance; the selection module in each network establishment device generates subnet connection information according to user input, the signal sending module sends the subnet connection information to enable a next network connection device to be in communication connection with a current network connection device according to the subnet connection information, the signal receiving module obtains the subnet connection information of a previous network connection device and is in communication connection with the previous network connection device, and finally the password generation module generates terminal connection information according to user input, so that the system can quickly establish a tunnel wireless network, and finally the network connection device closest to the terminal provides a wireless network for the terminal, and the signal is strong and stable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a wireless network emergency system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a network connection device according to an embodiment of the present invention;
fig. 3 is a flowchart of an implementation of a wireless network emergency method according to an embodiment of the present invention;
fig. 4 is a flowchart of an implementation of another wireless network emergency method according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example one
Referring to fig. 1, a schematic diagram of a wireless network emergency system including at least two network connection devices, each communicatively coupled to each other, is provided. In fig. 1, the wireless network emergency system is described by taking an example in which the wireless network emergency system includes N network connection devices, the wireless network emergency system may provide a wireless network for M terminals, and N and M are positive integers, but not limited thereto, for example, the number of the network connection devices may be 2, or may be plural, or the number of the terminals may be plural.
Each network connection device includes: a selection module 110, a signal receiving module 120, a signal transmitting module 130 and a password generating module 140.
The selection module 110 is connected to the signal transmission module 120 and the signal reception module 130, and the password generation module 140 is connected to the signal transmission module 120.
The selection module 110 is configured to generate subnet connection information according to a user input; the signal sending module 120 is configured to send the subnet connection information, so that the subsequent network connection device obtains the subnet connection information, and is in communication connection with the current network connection device according to the subnet connection information; the signal receiving module 130 is configured to obtain subnet connection information of a previous network connection device, and communicate with the previous network connection device according to the subnet connection information of the previous network connection device; the password generation module 140 is configured to generate terminal connection information according to a user input.
In practical application, the wireless network emergency system comprises at least two network connection devices, wherein the first network connection device is a network connection device with a wireless network, and the first network connection device can be arranged outside a tunnel, can also be arranged inside the tunnel, and can also be arranged at a tunnel port and other positions.
Illustratively, the wireless network emergency system includes two network connection devices, a first network connection device disposed outside the tunnel and a second network connection device disposed inside the tunnel. The selection module 110 of the first network connection device generates subnet connection information according to the user input, and then the signal receiving module 130 of the second network connection device acquires the subnet connection information and is communicatively connected to the first network connection device according to the subnet connection information of the first network connection device. If the second network connection device has satisfied the requirement of providing a strong wireless signal for the terminal in the tunnel, the password generation module 140 of the second network connection device generates terminal connection information according to the user input, and transmits the terminal connection information through the signal transmission module 120, so as to connect the terminal in the tunnel and provide a wireless network for the terminal.
In the system, each network connection device and each terminal are movable; the terminal can be a personal computer, a tablet computer or a mobile phone.
According to the wireless network emergency system, at least two network connecting devices are in communication connection, so that the data transmission distance is increased; the selection module 110 in each network establishment device 100 generates subnet connection information according to user input, the signal transmission module 120 transmits the subnet connection information so that a subsequent network connection device is in communication connection with a current network connection device according to the subnet connection information, the signal reception module 130 acquires subnet connection information of a previous network connection device and is in communication connection with the previous network connection device, and finally the password generation module 140 generates terminal connection information according to user input, so that the system can quickly establish a tunnel wireless network, and finally, the network connection device closest to the terminal provides a wireless network for the terminal, and the signal is strong and stable.
In one embodiment, the subnet connection information includes: a service set identification and a connection password.
A wireless local area network can be divided into a plurality of sub-networks needing different identity authentication through Service Set Identifiers (SSIDs), each sub-network needs independent identity authentication through a connection password, only the equipment passing the identity authentication can enter the corresponding sub-network, and unauthorized equipment is prevented from entering the network.
The selection module 110 is specifically configured to: and generating a service set identifier and a connection password according to the user input.
Illustratively, the selection module 110 of the first network connection device generates the first service set identification SSID1 and the first connection PASSWORD1 according to the user input, transmits the first service set identification SSID1 through the signal transmission module 120, so that other network connection devices can scan the first service set identification SSID1 through the signal reception module 130 and connect with the first network connection device according to the first connection PASSWORD 1.
Illustratively, the selection module 110 generates a second service set identifier SSID2 and a second connection PASSWORD2 according to user input, transmits the second service set identifier SSID2 through the signal transmission module 120, so that other network connection devices can scan the second service set identifier SSID2 through the signal reception module 130 and connect to the second network connection device according to the second connection PASSWORD 2.
If the second network connection device connected to the first network connection device provides a strong wireless signal to the terminal in the tunnel, the password generation module 140 of the second network connection device may also generate terminal connection information according to the user input, and transmit the terminal connection information through the signal transmission module 120, so as to connect the terminal in the tunnel and provide a wireless network for the terminal.
Optionally, the terminal connection information may include a terminal service set identifier and a terminal connection password.
In one embodiment, referring to fig. 2, the selection module 110 includes: a toggle switch element 111 and an information generating unit 112. The toggle switch element 111 is connected to the information generating unit 112.
The toggle switch element 111 is configured to toggle to a preset toggle position according to a user input. The information generating unit 112 is configured to generate a preset service set identifier and a preset connection password according to the preset dialing position.
Meanwhile, the toggle switch element 111 is configured to send a previous signal receiving instruction to the signal receiving module 130 when a user toggles to a preset toggle position according to a user input, and the receiving module 130 receives subnet connection information of a previous network connection device according to the previous signal receiving instruction and performs communication connection with the previous network connection device automatically.
The toggle switch element 111 comprises at least two toggle positions.
For example, when the toggle switch element 111 is toggled to the first toggle position, the network connection device corresponding to the toggle switch element 111 is used as the first network connection device, the information generating unit 112 generates the first default service set identifier SSID1 and the first connection PASSWORD1, connects with the first network connection device to obtain the first default service set identifier SSID1 and the first connection PASSWORD1, and automatically connects with the first network connection device.
When the toggle switch element 111 is toggled to the second toggle position, the network connection device corresponding to the toggle switch element 111 is used as the second network connection device, and the information generating unit 112 generates the second default service set identifier SSID2 and the second connection PASSWORD2, so that the third network connection device and the current network connection device can realize automatic connection, and the establishment speed of the wireless network is increased.
In one embodiment, the signal transmission module 120 includes: a directional antenna 121.
The signal receiving module 130 includes: an omnidirectional antenna 131.
Specifically, the signal transmitting module 120 transmits the subnet connection information through the directional antenna 121, so that other network connection devices can scan the subnet connection information through the omnidirectional antenna 131 of the signal receiving module 130.
The omni-directional antenna 131 of the signal receiving module 130 may scan subnet connection information of any network connection device. If the corresponding toggle switch element 111 is toggled to the nth toggle position, the omnidirectional antenna 131 of the signal receiving module 130 only receives the nth-1 service set identifier SSIDN-1 and the nth-1 preset connection password PASSWORDN-1 of the nth-1 network connection device, and realizes automatic connection with the nth-1 network connection device.
Referring to fig. 2, the signal transmission module 120 further includes: a signal processing unit 122. The signal processing unit 122 is configured to receive the subnet connection information sent by the selection module 110, convert the subnet connection information into a connection signal, and send the connection signal to the directional antenna 121.
The signal receiving module 130 further includes: a connection unit 132. The connection unit 132 is configured to connect with a previous network connection device according to the subnet connection information received by the omnidirectional antenna 131.
In one embodiment, the signal sending module 120 is further configured to:
and transmitting the terminal connection information through the directional antenna 121, so that the terminal acquires the terminal connection information and is in network connection with the current network connection device according to the terminal connection information.
Specifically, when the corresponding network connection device has satisfied the requirement of providing a strong wireless signal for the terminal in the tunnel, the password generation module 140 generates terminal connection information according to the user input, and then transmits the terminal connection information through the directional antenna 121, so that the terminal acquires the terminal connection information and is in network connection with the current network connection device according to the terminal connection information.
In one embodiment, referring to fig. 2, the password generation module 140 may include a key 141 and a password generation unit 142.
The key 141 generates a password generation instruction to the password generation unit 142 in the case of user activation.
The password generation unit 142 generates terminal connection information according to the password generation instruction.
Illustratively, when a certain network connection device has satisfied the condition of providing a strong wireless signal for a terminal in a tunnel, a user triggers a key 141 of the network connection device, the key 141 generates a password generation instruction to a password generation unit 142, the password generation unit 142 generates terminal connection information according to the password generation instruction and sends the terminal connection information to a signal transmission module 120, and a directional antenna 121 of the signal transmission module 120 transmits the terminal connection information, so that the terminal acquires the terminal connection information and is in network connection with the current network connection device according to the terminal connection information.
In one embodiment, the wireless network emergency system further comprises: a power module 150.
The power module 150 is used to supply power to the selection module 110, the signal receiving module 120, the signal sending module 130 and the password generation module 140.
It should be understood that the present embodiment is not limited to a specific type of the power module 150, and may be a lithium battery, or other types of batteries.
The specific work flow of the wireless network emergency system is described as follows by combining the structure of the network connection device:
when the network connection device is connected, the toggle switch element 111 of the first network connection device toggles to the 1 st toggle position according to the user input, the information generating unit 112 generates the first service set identification SSID1 and the first connection PASSWORD1, and the directional antenna 121 of the signal transmitting module 120 transmits the first service set identification SSID1 and the first connection PASSWORD1 for the other network connection device to scan and connect. The first network connection device is a network connection device with a wireless network.
The toggle switch element 121 of the second network connection device toggles to the 2 nd toggle position according to the user input, the information generating unit 112 generates the second service set identification SSID2 and the second connection PASSWORD2, and the directional antenna 121 of the signal transmitting module 120 transmits the second service set identification SSID2 and the second connection PASSWORD2 for the other network connection devices to scan and connect; meanwhile, the omnidirectional antenna 131 of the signal receiving module 130 automatically scans the first service set identifier SSID1 and the first connection PASSWORD1, and the second network connection device automatically connects with the first network connection device through the signal receiving module 130.
The toggle switch element 121 of the third network connection device toggles to the 3 rd toggle position according to the user input, the information generating unit 112 generates the third service set identification SSID3 and the third connection PASSWORD3, and the directional antenna 121 of the signal transmitting module 120 transmits the third service set identification SSID3 and the third connection PASSWORD3 for the other network connection devices to scan and connect; meanwhile, the omnidirectional antenna 131 of the signal receiving module 130 automatically scans the second service set identifier SSID2 and the second connection PASSWORD2, and the third network connection device automatically connects with the second network connection device through the signal receiving module 130.
When the middle network connection device fails or is powered off, the user may toggle the toggle switch element 121 of another network connection device that can work to the nth toggle position, the corresponding information generating unit 112 generates the nth service set identifier SSIDN and the third connection PASSWORD PASSWORDN, and the directional antenna 121 of the corresponding signal transmitting module 120 transmits the nth service set identifier SSID3 and the nth connection PASSWORD PASSWORDN 3 for scanning and connection by the other network connection device; meanwhile, the omnidirectional antenna 131 of the corresponding signal receiving module 130 automatically scans the nth-1 service set identifier SSIDN-1 and the nth-1 connection password PASSWORDN-1, and the network connection device is automatically connected to the nth-1 network connection device.
And so on until the last network connection device can provide a stronger wireless signal for the terminal in the tunnel, namely the last network connection device is closest to the terminal in the tunnel.
The password generation module 140 of the last network connection device generates terminal connection information according to the user input (e.g., trigger key 141), where the terminal connection information terminal service set identifier SSIDE and the terminal connection password PASSWORDE, that is, the wireless network provided by the wireless network emergency system for the terminal in the tunnel is SSIDE, and the password of the wireless network is PASSWORDE.
In the above embodiment, at least two network connection devices are in communication connection to establish a fast data path, and the cooperation of the directional antenna 121 and the omnidirectional antenna 131 increases the data transmission distance; the selection module 110 in each network establishment device directly generates subnet connection information according to user input, the signal transmission module 120 transmits the subnet connection information so that the next network connection device is automatically connected with the current network connection device according to the subnet connection information, the signal reception module 130 acquires the subnet connection information of the previous network connection device and automatically connects with the previous network connection device, and finally the password generation module 140 generates terminal connection information according to user input, so that the system can quickly establish a tunnel wireless network, and the network connection device closest to the terminal provides a wireless network for the terminal, and the signal is strong and stable.
Example two
Based on the wireless network emergency system, the embodiment provides a wireless network emergency establishment method, and referring to fig. 3, a specific implementation flow diagram of the wireless network emergency establishment method provided in the embodiment is shown, which is detailed as follows:
step S301, a first network connection device generates first subnet connection information according to user input, wherein the first network connection device is a network connection device with a wireless network.
Step S302, the second network connection device obtains the first subnet connection information, and is in communication connection with the first network connection device according to the first subnet connection information.
Step S303, the second network connection device generates terminal connection information according to the user input, so that the terminal is connected to the second network connection device through the network according to the terminal connection information.
In one embodiment, the first subnet connection information includes: a first service set identification and a first connection password. The first network connection device comprises a first toggle switch element and a first information generation unit.
Specifically, the specific implementation process of the first network connection device generating the first subnet connection information according to the user input in step S301 includes:
the first toggle switch element toggles to a first toggle position according to a user input.
And the first information generation unit generates a first service set identifier and a first connection password according to the first toggle position.
According to the wireless network emergency establishing method, at least two network connecting devices are in communication connection, a fast data path is established, and the data transmission distance is increased; each network establishing device directly generates subnet connection information according to user input, the next network connecting device automatically connects with the current network connecting device according to the subnet connection information, the network establishing device also can acquire the subnet connection information of the previous network connecting device and automatically connects with the previous network connecting device, the network connecting device closest to the tunnel generates terminal connection information according to the user input, a tunnel wireless network is quickly established, a wireless network is provided for the terminal, and the signal is strong and stable.
EXAMPLE III
The embodiment provides another wireless network emergency establishing method which is suitable for a wireless network emergency system comprising at least three network connecting devices. Referring to fig. 4 specifically, another specific implementation flow diagram of the wireless network emergency establishment method provided in this embodiment is detailed as follows:
step S401, a first network connection device generates first subnet connection information according to a user input, where the first network connection device is a network connection device with a wireless network.
Step S402, the second network connection device obtains the first subnet connection information, and is in communication connection with the first network connection device according to the first subnet connection information.
In step S403, the second network connection device generates second subnet connection information according to the user input.
Step S404, the third network connection device obtains the second subnet connection information, and is in communication connection with the second network connection device according to the second subnet connection information.
Step S405, the third network connection device generates terminal connection information according to the user input, so that the terminal is in network connection with the third network connection device according to the terminal connection information.
In one embodiment, the first subnet connection information includes: a first service set identification and a first connection password; the first network connection device comprises a first toggle switch element and a first information generation unit.
Specifically, the specific implementation process of the first network connection device generating the first subnet connection information according to the user input in step S401 includes:
the first toggle switch element toggles to a first toggle position according to a user input.
And the first information generation unit generates a first service set identifier and a first connection password according to the first toggle position.
In one embodiment, the second subnet connection information includes: a second service set identification and a second connection password; the second network connection device comprises a second toggle switch element and a second information generation unit.
Specifically, the specific implementation process of the second network connection device generating the second subnet connection information according to the user input in step S403 includes:
the second toggle switch element is toggled to a second toggle position according to user input;
and the second information generating unit generates a second service set identifier and a second connection password according to the second toggle position.
According to the wireless network emergency establishing method, the communication connection is carried out among the at least three network connecting devices, a quick data access is established, and the data transmission distance is increased; each network establishing device directly generates subnet connection information according to user input, the next network connecting device automatically connects with the current network connecting device according to the subnet connection information, the network establishing device also can acquire the subnet connection information of the previous network connecting device and automatically connects with the previous network connecting device, the network connecting device closest to the tunnel generates terminal connection information according to the user input, a tunnel wireless network is quickly established, a wireless network is provided for the terminal, and the signal is strong and stable.
It should be understood by those skilled in the art that the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided by the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, 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 units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (2)
1. A wireless network emergency system comprising at least two network connection devices communicatively coupled therebetween, wherein each of said network connection devices comprises: the device comprises a selection module, a signal receiving module, a signal sending module and a password generating module; the selection module is connected with the signal sending module and the signal receiving module, and the password generation module is connected with the signal sending module; the selection module is used for generating subnet connection information according to user input; the signal sending module is used for sending the subnet connection information so that the next network connection device can obtain the subnet connection information and is in communication connection with the current network connection device according to the subnet connection information; the signal receiving module is used for acquiring subnet connection information of a previous network connection device and is in communication connection with the previous network connection device according to the subnet connection information of the previous network connection device; the password generation module is used for generating terminal connection information according to user input; the subnet connection information includes: a service set identifier and a connection password; a wireless local area network can be divided into a plurality of sub-networks needing different identity authentication through Service Set Identifiers (SSIDs), each sub-network needs independent identity authentication through a connection password, only equipment passing the identity authentication can enter the corresponding sub-network, and unauthorized equipment is prevented from entering the network; the selection module is specifically configured to: generating a service set identifier and a connection password according to user input; the selection module 110 of the first network connection device generates a first service set identification SSID1 and a first connection PASSWORD1 according to the user input, transmits the first service set identification SSID1 through the signal transmission module, so that other network connection devices can scan the first service set identification SSID1 through the signal reception module and connect with the first network connection device according to the first connection PASSWORD 1; the selection module generates a second service set identifier SSID2 and a second connection PASSWORD PASSWORD2 according to user input, transmits the second service set identifier SSID2 through the signal transmission module, so that other network connection devices can scan the second service set identifier SSID2 through the signal receiving module and are connected with the second network connection device according to the second connection PASSWORD PASSWORD 2; if the second network connection device is connected with the first network connection device and meets the requirement of providing a stronger wireless signal for the terminal in the tunnel, the password generation module of the second network connection device can also generate terminal connection information according to user input, and the signal sending module transmits the terminal connection information for the terminal in the tunnel to be connected, so as to provide a wireless network for the terminal; the terminal connection information may include a terminal service set identifier and a terminal connection password; the selection module comprises: a toggle switch element and an information generating unit; the toggle switch element is connected with the information generation unit; the toggle switch element is used for toggling to a preset toggle position according to user input; the information generating unit is used for generating a preset service set identifier and a preset connection password according to the preset shifting position; the toggle switch element is used for sending a previous signal receiving instruction to the signal receiving module when a user toggles to a preset toggle position according to user input, and the receiving module receives subnet connection information of a previous network connection device according to the previous signal receiving instruction and automatically performs communication connection with the previous network connection device; the toggle switch element comprises at least two toggle positions; when the toggle switch element is toggled to the first toggle position, the network connection device corresponding to the toggle switch element is used as a first network connection device, the information generation unit generates a first preset service set identifier SSID1 and a first connection PASSWORD1, the network connection device is connected with the first network connection device to acquire the first preset service set identifier SSID1 and the first connection PASSWORD1, and automatic connection is achieved with the first network connection device; when the toggle switch element is toggled to a second toggle position, the network connection device corresponding to the toggle switch element is used as a second network connection device, and the information generation unit generates a second preset service set identifier SSID2 and a second connection PASSWORD PASSWORD2, so that the third network connection device can be automatically connected with the current network connection device, and the establishment speed of the wireless network is improved; the signal transmission module comprises: a directional antenna; the signal receiving module includes: an omnidirectional antenna; the signal sending module sends out the subnet connection information through the directional antenna so that other network connection devices can scan the subnet connection information through the omnidirectional antenna of the signal receiving module; the omnidirectional antenna of the signal receiving module can scan subnet connection information of any network connection device; if the corresponding toggle switch element is toggled to the Nth toggle position, the omnidirectional antenna of the signal receiving module only receives the N-1 service set identification SSIDN-1 and the N-1 preset connection password PASSSWORDN-1 of the Nth-1 network connection device and realizes automatic connection with the N-1 network connection device; the signal transmission module further includes: a signal processing unit; the signal processing unit is used for receiving the subnet connection information sent by the selection module, converting the subnet connection information into a connection signal and sending the connection signal to the directional antenna; the signal receiving module further includes: a connection unit; the connection unit is used for connecting with a previous network connection device according to the subnet connection information received by the omnidirectional antenna; the signal sending module is further configured to: transmitting the terminal connection information through the directional antenna so that the terminal acquires the terminal connection information and is in network connection with the current network connection device according to the terminal connection information; when the corresponding network connection device provides a strong wireless signal for the terminal in the tunnel, the password generation module generates terminal connection information according to user input, and then transmits the terminal connection information through the directional antenna, so that the terminal acquires the terminal connection information and is in network connection with the current network connection device according to the terminal connection information; the password generation module comprises a key and a password generation unit; the key generates a password generation instruction to the password generation unit under the condition of user triggering; the password generating unit generates terminal connection information according to the password generating instruction; when a certain network connection device meets the requirement of providing a strong wireless signal for a terminal in a tunnel, a user triggers a key of the network connection device, the key generates a password generation instruction to a password generation unit, the password generation unit generates terminal connection information according to the password generation instruction and sends the terminal connection information to a signal emission module, and a directional antenna of the signal emission module emits the terminal connection information so that the terminal acquires the terminal connection information and is in network connection with the current network connection device according to the terminal connection information; the wireless network emergency system further comprises: a power supply module; the power supply module is used for supplying power to the selection module, the signal receiving module, the signal sending module and the password generation module; when the network connection device is connected, the toggle switch element of the first network connection device is toggled to a first toggle position according to the input of a user, the information generation unit generates a first service set identifier SSID1 and a first connection PASSWORD PASSWORD1, and the directional antenna of the signal transmission module transmits the first service set identifier SSID1 and the first connection PASSWORD PASSWORD1 for other network connection devices to scan and connect; wherein, the first network connection device is a network connection device with a wireless network; the toggle switch element of the second network connection device is toggled to a first toggle position according to the user input, the information generating unit generates a second service set identifier SSID2 and a second connection PASSWORD PASSWORD2, and the directional antenna of the signal transmitting module transmits the second service set identifier SSID2 and the second connection PASSWORD PASSWORD2 for other network connection devices to scan and connect; meanwhile, the omnidirectional antenna 131 of the signal receiving module 130 automatically scans the first service set identifier SSID1 and the first connection PASSWORD1, and the second network connection device automatically connects with the first network connection device through the signal receiving module 130.
2. A wireless network emergency establishing method is suitable for a wireless network emergency system comprising at least two network connection devices, and is characterized by comprising the following steps: step S301, a first network connection device generates first subnet connection information according to user input, wherein the first network connection device is a network connection device with a wireless network;
step S302, a second network connection device acquires the first subnet connection information and is in communication connection with the first network connection device according to the first subnet connection information;
step S303, the second network connection device generates terminal connection information according to user input, so that the terminal is in network connection with the second network connection device according to the terminal connection information; the first subnet connection information includes: a first service set identification and a first connection password; the first network connection device comprises a first toggle switch element and a first information generation unit; specifically, the specific implementation process of the first network connection device generating the first subnet connection information according to the user input in step S301 includes: the first toggle switch element is toggled to a first toggle position according to user input; the first information generation unit generates a first service set identifier and a first connection password according to the first toggle position; according to the wireless network emergency establishing method, at least two network connecting devices are in communication connection, a fast data path is established, and the data transmission distance is increased; each network establishing device directly generates subnet connection information according to user input, the next network connecting device automatically connects with the current network connecting device according to the subnet connection information, the network establishing device also can acquire the subnet connection information of the previous network connecting device and automatically connects with the previous network connecting device, the network connecting device closest to the tunnel generates terminal connection information according to the user input, a tunnel wireless network is quickly established, a wireless network is provided for the terminal, and the signal is strong and stable.
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