CN117119561A - Multi-scene automatic intelligent networking communication system under no-network environment - Google Patents

Abstract

The invention relates to the technical field of wireless communication, and discloses a multi-scene automatic intelligent networking communication system in a network-free environment, which comprises n multi-frequency devices, a server with a directional antenna and an acquisition terminal; the method comprises the steps that n pieces of multi-frequency equipment are sequentially placed in a complex scene at intervals, a server is connected with the n pieces of multi-frequency equipment provided with an omni-directional antenna through a directional antenna, an acquisition terminal is connected with the multi-frequency equipment and used for sending acquired data to the multi-frequency equipment, and the acquired data are transmitted to the server through the multi-frequency equipment; the multi-frequency equipment is provided with a double-frequency main board, the control chip is connected with a dial switch, and autonomous switching is realized through the dial switch; an automatic intelligent networking method is arranged in the control chip of the multi-frequency equipment, frequency conversion is carried out by adopting a dialing mode of army equipment, the same-frequency interference is avoided, and the control chip is used for carrying out data communication between the acquisition terminal and the server. Compared with the prior art, the invention optimizes and improves the bottom intelligent networking algorithm and realizes the full communication coverage of automatic intelligent networking in complex environments.

Description

Multi-scene automatic intelligent networking communication system under no-network environment

Technical Field

The invention relates to the technical field of wireless communication, in particular to a multi-scene automatic intelligent networking communication system in a network-free environment.

Background

With the progress of technology and the improvement of living standard of people, information equipment with computing and communication capability is embedded into our working and living environment, and people hope to enjoy computing capability and information service conveniently and freely at any time and any place. At present, the types and the number of electronic devices in China are more and more, and the wide use of the devices makes the interaction channel of computing resources, network connection and people fish computing services become ubiquitous. But it is premised on communication based on either a 4G or 5G network.

But in special occasions, network-free situations, such as underground parking lots, underground coal mines, fire-fighting sites and the like, often occur. The problems that easily occur in the communication process of the existing communication device are as follows:

1. in a single 4G network environment, the 4G link cannot guarantee the transmission quality of voice, video and data, and signal loss, data packet loss and other situations may occur.

2. The network environment is poor, and mainly comprises disaster site signal difference, insufficient network coverage, network congestion and the like.

3. Under 4G single link video transmission, video delay, blocking, black screen and the like can possibly occur, so that judgment of commanders is seriously influenced, and implementation of decisions is influenced.

In view of the foregoing, there is a need for an automatic intelligent networking communication system capable of implementing communication in a network-free environment, and capable of implementing automatic intelligent networking in a complex environment to complete data transmission communication.

Disclosure of Invention

The invention aims to: aiming at the problems existing in the prior art, the invention provides a multi-scene automatic intelligent networking communication system under a non-network environment, which realizes the interval arrangement of a plurality of multi-frequency devices under a complex environment by designing a multi-frequency device and optimizing and improving the bottom intelligent networking algorithm of the multi-frequency device, thereby realizing the full communication coverage of the automatic intelligent networking.

The technical scheme is as follows: the invention provides a multi-scene automatic intelligent networking communication system in a network-free environment, which comprises n multi-frequency devices, a server with a directional antenna and an acquisition terminal; according to intelligent networking coverage of the multi-frequency equipment, n multi-frequency equipment are sequentially placed in a complex scene at intervals, and the whole range of the complex scene is covered; the server is connected with n multi-frequency devices provided with omni-directional antennas through directional antennas, the acquisition terminal is connected with the multi-frequency devices and is used for sending acquired data to the multi-frequency devices and transmitting the acquired data to the server through the multi-frequency devices;

the multi-frequency equipment is provided with a multi-minipici-e mainboard, so that a plurality of frequency bands of one mainboard are realized; designing a double-frequency main board with a minicic-e slot for inserting a low-frequency module; the control chip of the multi-frequency equipment is connected with a dial switch, and GPIO switching is realized through the dial switch; an automatic intelligent networking method is arranged in the multi-frequency equipment control chip, frequency conversion is carried out by adopting a dialing mode of army equipment, co-frequency interference is avoided, and the multi-frequency equipment control chip is used for carrying out data communication between the acquisition terminal and the server.

Further, the multi-frequency device comprises 4 classes, respectively:

a) The low-frequency 340MHz or 580MHz single-frequency equipment is used for diffracting 10-20M application scenes and equipment with large single bandwidth required;

b) 1.4GHz frequency device for medium bandwidth 30-40M, but far away scenes;

c) The low-frequency +1.4GHz dual-frequency equipment is used for fusing two special frequency bands of communication and automatically selecting a robust MESH link to communicate at the same time;

d) The low-frequency +2.4G +5G +LTE multi-frequency equipment is used as a fusion gateway by fusing the communication technology low-frequency mesh +wifi +4G/5G.

Further, the main idea of the automatic intelligent networking method is to replace one by n+1 routing tables, where N is the number of ports to be configured, and specifically includes the following steps:

step 1: setting a routing table for each port;

step 2: different paths are propagated, and OGM forwarding is changed; when multiple ports exist and one OGM is forwarded on the same port, a penalty value is increased when the OGM is forwarded again, and the approved distance penalty exists locally;

step 3: the ports alternate; forwarding the received frames through different ports, and enabling one Wi-Fi port to either transmit or receive at a certain moment;

step 4: the whole network ports are alternated, unlike the original port alternation function which works at a local level, the multi-port strategy can be executed by the whole mesh network, and the multi-port nodes can be routed to different points to reach the first hop through a multi-path routing protocol;

step 5: when multiple paths are on different ports, protocol distribution frames are sent over legal paths, and these independent frames are sent over the polling scheduling protocol.

Further, when a certain frequency band is interfered, the link quality of the port of the frequency band is reduced, the port is punished, the TQ value is increased, the OGM of the port can inform the whole network, and the frequency band is avoided during message forwarding.

Further, the routing table set for each port in the step 1 is specifically as follows:

c) Each access port corresponds to a routing table;

d) Adding a default routing table to the locally generated message.

6. The multiple scenario, automatic intelligent networking communication system according to claim 3, wherein each port in step 2 complies with the "forward only by optimal neighbors" rule.

Further, the system further comprises an APP, n multi-frequency devices are used as servers, the operation of the APP is passively replied, the APP is not used for actively initiating the operation request, the APP is used as an active initiating terminal of the operation, and the following operations are performed on the multi-frequency devices:

1) The APP acquires state information of the running of the current equipment from the multi-frequency equipment;

2) The APP issues specific configuration to the multi-frequency equipment, and modifies SSID and channel;

3) The APP issues a specific operation instruction to the multi-frequency equipment;

the information acquisition APP is actively acquired from the equipment through HTTP get operation; the configuration issuing and system operation APP actively issues configuration and instructions to the equipment through HTTP post operation; the communication protocol APP and the equipment adopt HTTP or HTTPS protocol, and the default port number is 10068; the first phase implementation employs the HTTP protocol.

Further, the interaction flow of the APP and the multi-frequency device is as follows:

first: adding a device flow;

after APP is connected with the multi-frequency equipment, a get request is initiated; the equipment returns the current configuration and running state of the equipment according to the request; the APP generates configuration information according to the information returned by the equipment in the last step and distributes the configuration information to the equipment through post operation; the equipment replies and confirms according to the issued configuration, and whether the configuration is effective or not; once the equipment is configured successfully, the equipment and the APP link enter a keep-alive state, otherwise, the configuration needs to be issued again;

second, keep-alive procedure;

the APP actively initiates get operation keep-alive to the equipment, and if a plurality of equipment exists in the network, each equipment needs to be periodically polled and keep-alive, so that the information on the APP is ensured to be synchronous with the equipment; the equipment replies a get keep-alive request of the APP;

thirdly, configuring a flow;

the user modifies SSID and password configuration through APP, the APP generates configuration according to information of user configuration, and the configuration is pushed to the device through post operation; if a plurality of devices exist in the network, the devices need to be issued simultaneously; the equipment configures the equipment according to the configuration pushed by the APP, and meanwhile, the configuration result is returned to the APP.

The beneficial effects are that:

1. the invention covers the whole range of the complex environment by arranging the multi-frequency devices at intervals in the complex environment, and does not affect the bandwidth of communication. The directional antenna is used on the command vehicle at the service end, the multi-frequency equipment in the site is generally an omni-directional antenna, the communication between the upper complex environment and the lower complex environment is achieved through the relay of the directional antenna of the command vehicle, and the frequency conversion is carried out by adopting a dial mode, so that the same-frequency interference is avoided.

2. The multi-frequency equipment is designed into a double-screen main board, and is provided with the minicic-e slot for inserting the low-frequency module, so that the multi-frequency situation is realized, the frequency conversion is realized by a dial mode, the multi-channel communication can be realized, the bandwidth is not influenced, and the same-frequency interference can not occur.

3. The automatic intelligent networking mode designed by the invention sets a routing table at each port, changes the OGM forwarding, forwards one OGM at the same port, and increases the punishment value when forwarding the OGM again. And the invention distributes frames in the whole network port alternating protocol and transmits the frames through legal paths, and the independent frames are transmitted through a polling scheduling protocol. The intelligent networking mode can realize automatic intelligent networking and data communication under the condition of not reducing bandwidth.

Drawings

FIG. 1 is a block diagram of a circuit implementation of a multi-frequency device of the present invention;

FIG. 2 is a flow chart of a dual-frequency node explanation of the port alternation process of the present invention;

FIG. 3 is an exemplary explanatory block diagram of the port alternation of the whole network of the present invention;

FIG. 4 is a block diagram of an example of a path diversity node of the present invention;

FIG. 5 is a block diagram of the transmission of independent frames via a poll scheduler protocol in the port binding of the present invention;

FIG. 6 is a flow chart of interaction of the APP with the multi-frequency device of the present invention;

fig. 7 is a flow and data structure of interaction between APP and a multi-frequency device according to the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.

The invention discloses a multi-scene automatic intelligent networking communication system in a network-free environment, which comprises n multi-frequency devices, a server with a directional antenna and an acquisition terminal. And (3) placing n multi-frequency devices in the complex scene at intervals in sequence according to the intelligent networking coverage range of the multi-frequency devices, and covering the whole range of the complex scene. The server is connected with n multi-frequency devices provided with the omnidirectional antenna through the directional antenna, the acquisition terminal is connected with the multi-frequency devices and used for sending acquired data to the multi-frequency devices and transmitting the acquired data to the server through the multi-frequency devices.

The multi-minipici-e motherboard for the multi-frequency device realizes a plurality of frequency bands of one motherboard, designs a dual-frequency motherboard, and is provided with a minipici-e slot for inserting a low-frequency module. The control chip of the multi-frequency device is connected with a dial switch, and GPIO switching is realized through the dial switch, see fig. 1. An automatic intelligent networking method is arranged in the control chip of the multi-frequency equipment, frequency conversion is carried out by adopting a dialing mode of army equipment, the same-frequency interference is avoided, and the control chip is used for carrying out data communication between the acquisition terminal and the server.

The invention can be applied to the field of coal mines, and the embodiment specifically describes the field of coal mines, for example, a multi-frequency device is arranged on a slope in a mine channel at intervals, n multi-frequency devices are arranged on the slope mine channel, and 580MHz, 1.4GHz and 340MHz (alternative) can be selected from the design surface through a large amount of test work. With directional antennas on command vehicles, the devices in the field are generally omni-directional antennas, communication points between the devices are not well arranged, and communication between the upper floor and the lower floor is preferably achieved through relay of the directional antennas of the command vehicles. And the frequency conversion is carried out by adopting a dialing mode of army equipment, so that the same-frequency interference is avoided.

The above-mentioned multifrequency equipment includes 4 classes, respectively:

a) The low-frequency 340MHz or 580MHz single frequency device is used for diffracting 10-20M application scenes and devices requiring large single bandwidth.

B) 1.4GHz frequency device for medium bandwidth 30-40M but far away scenes.

C) The low frequency +1.4GHz dual-frequency equipment is used for fusing two special frequency bands for communication, and simultaneously, the robust MESH link communication is automatically selected.

D) The low-frequency +2.4G +5G +LTE multi-frequency equipment is used as a fusion gateway by fusing the communication technology low-frequency mesh +wifi +4G/5G.

The main idea of the automatic intelligent networking method is to replace one by n+1 routing tables, wherein N is the number of ports to be configured, and the method specifically comprises the following steps:

step 1: each port sets a routing table.

a) Each access port corresponds to a routing table;

b) Adding a default routing table to the locally generated message.

Step 2: different paths are propagated, and OWM forwarding is changed. To propagate different paths, the forwarding of the OGMs needs to be modified, and when multiple ports exist and one OGM is forwarded on the same port, a penalty value (such as a half-duplex penalty) is added when the OGM is forwarded again, and the approved distance penalty exists locally. Each port obeys the rule of "forward only through optimal neighbors".

Step 3: the ports alternate; forwarding the received frames through different ports, this alternation has the effect of reducing interference (we can let a Wi-Fi port either transmit or receive at a certain moment), balancing the network load on the available ports, and eventually increasing the bandwidth. Referring to fig. 2, the following two-frequency nodes explain this mechanism:

the port alternation is implemented by considering that when a port receives a message, then the best neighbor with the legitimate egress port is selected. In half-duplex ports, such as Wi-Fi ports, there is a penalty for distance, and forwarding strategies using the same port for transmission and reception may be considered worse. In fig. 2:

(1) OGM is sent from a through A1, A2.

(2) B is penalized when the forwarding packets from B1 to A1 include, of course, B2 to A2.

(3) Thus, when the OGM reaches B1, it can only be forwarded through B2 (because there is no penalty here). They do not retransmit through B1 because B2 is known to be of better quality by receiving packets.

(4) Finally (assuming that all links are of the same quality), the value of TQ in the OGMs packets from A to B is the same; but the internal routing table contains port exchanges.

(5) Taken together, assume that another node behaves in the same way: if a packet is sent from the D1 port of D, the packet will follow the dashed path. If sent from D2, the packet will follow the real line path. Port alternation may be implemented by a policy of a local routing table.

Step 4: the whole network port alternation is not like the original port alternation function working at the local level, and the multiport strategy can be executed by the whole mesh network.

Unlike the original port alternation function that works at the local level, the multiport strategy can be considered to be executed by the whole mesh network. For example, referring to fig. 3, assume that there are some dual-frequency mesh nodes, most with 2.4GHz and 5GHz links connecting the next hop, except nodes C and D only have 2.4GHz connections. Based on the propagation of this information, a will first select the 2.4GHz link to E. This will avoid point C using the same frequency if node a enables 5GHz.

Step 5: path diversification, see fig. 4:

(1) The node B is configured with 2 ports (imagine two Wi-Fi cassette two sector plate antennas).

(2) Node a connects to port B1 of device B, leading to point E for the next hop through B.

(3) Node F is connected to port B2 of B, leading to E for the next hop through B.

(4) Packets from a want to E will be forwarded from B1 port to B2 port.

(5) Packets from F to E will be forwarded from B2 port to B1 port.

(6) The next hop on B1 port to E and B2 port to E are not the same.

For multi-port full network optimization, multi-port nodes can be routed to different points through a multi-path routing protocol to reach the first hop. It is assumed that all paths of the scenario described above are intact. Node B routes the packet from F (green path) through C and routes the message from a (red path) through G to destination E.

Step 5: when multiple paths are on different ports (assuming the same quality exists), protocol distribution frames are sent over legal paths, and these separate frames are sent over the polling scheduling protocol. Referring to fig. 5, using this technique, the bandwidth increase comes from the number of ports participating in the binding. The bandwidth can reach N times under perfect state, N is the port number. The actual test increases the bandwidth by 50% and reaches 150% in the dual-band Wi-Fi link, and does not reach 200% of what is theoretically expected. Possible reasons are packet reassembly and random rollback of different queues, error retries, etc.

As interface alertnating, when a certain frequency band is interfered, the link quality of the port of the frequency band is reduced, the port is punished, the TQ value is increased, the OGM of the port can inform the whole network, and the frequency band is avoided during message forwarding.

The system also comprises APP, n multi-frequency devices are used as servers, the operation of the APP is passively replied, the APP does not actively initiate an operation request, the APP is used as an active initiation end of the operation, and the following operations are performed on the multi-frequency devices:

1) The APP obtains state information of the current device operation from the multi-frequency device, for example: device runtime, version information, data statistics, etc.

2) The APP issues specific configurations to the multi-frequency device, modifies SSID, channel, for example: modifying SSID, channel, etc.

3) The APP issues specific operation instructions to the multi-frequency device, for example: upgrade, etc.

The information acquisition APP is actively acquired from the equipment through HTTP get operation; the configuration issuing and system operation APP actively issues configuration and instructions to the equipment through HTTP post operation; the communication protocol APP and the equipment adopt HTTP or HTTPS protocol, and the default port number is 10068; the first phase implementation employs the HTTP protocol.

The interaction flow of APP with the multi-frequency device is as follows, see in particular fig. 6 and 7:

first: adding a device flow;

after APP is connected with the multi-frequency equipment, a get request is initiated; the equipment returns the current configuration and running state of the equipment according to the request; the APP generates configuration information according to the information returned by the equipment in the last step and distributes the configuration information to the equipment through post operation; the equipment replies and confirms according to the issued configuration, and whether the configuration is effective or not; once the equipment is configured successfully, the equipment and the APP link enter a keep-alive state, otherwise, the configuration needs to be issued again;

second, keep-alive procedure;

the APP actively initiates get operation keep-alive to the equipment, and if a plurality of equipment exists in the network, each equipment needs to be periodically polled and keep-alive, so that the information on the APP is ensured to be synchronous with the equipment; the equipment replies a get keep-alive request of the APP;

thirdly, configuring a flow;

the user modifies SSID and password configuration through APP, the APP generates configuration according to information of user configuration, and the configuration is pushed to the device through post operation; if a plurality of devices exist in the network, the devices need to be issued simultaneously; the equipment configures the equipment according to the configuration pushed by the APP, and meanwhile, the configuration result is returned to the APP.

The foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (8)

1. The multi-scene automatic intelligent networking communication system in the network-free environment is characterized by comprising n multi-frequency devices, a service end with a directional antenna and an acquisition terminal; according to intelligent networking coverage of the multi-frequency equipment, n multi-frequency equipment are sequentially placed in a complex scene at intervals, and the whole range of the complex scene is covered; the server is connected with n multi-frequency devices provided with omni-directional antennas through directional antennas, the acquisition terminal is connected with the multi-frequency devices and is used for sending acquired data to the multi-frequency devices and transmitting the acquired data to the server through the multi-frequency devices;

the multi-frequency equipment is provided with a multi-minipici-e mainboard, so that a plurality of frequency bands of one mainboard are realized; designing a double-frequency main board with a minicic-e slot for inserting a low-frequency module; the control chip of the multi-frequency equipment is connected with the dial switch, and autonomous switching is realized through the dial switch; an automatic intelligent networking method is arranged in the multi-frequency equipment control chip, frequency conversion is carried out by adopting a dialing mode of army equipment, co-frequency interference is avoided, and the multi-frequency equipment control chip is used for carrying out data communication between the acquisition terminal and the server.

2. The multi-scenario automatic intelligent networking communication system of claim 1, wherein the multi-frequency devices comprise 4 classes, respectively:

a) The low-frequency 340MHz or 580MHz single-frequency equipment is used for diffracting 10-20M application scenes and equipment with large single bandwidth required;

b) 1.4GHz frequency device for medium bandwidth 30-40M, but far away scenes;

c) The low-frequency +1.4GHz dual-frequency equipment is used for fusing two special frequency bands of communication and automatically selecting a robust MESH link to communicate at the same time;

d) The low-frequency +2.4G +5G +LTE multi-frequency equipment is used as a fusion gateway by fusing the communication technology low-frequency mesh +wifi +4G/5G.

3. The multi-scenario automatic intelligent networking communication system according to claim 1, wherein the main idea of the automatic intelligent networking method is to replace one by n+1 routing tables, N is the number of ports to be configured, and specifically comprises the following steps:

step 1: setting a routing table for each port;

step 2: different paths are propagated, and OGM forwarding is changed; when multiple ports exist and one OGM is forwarded on the same port, a penalty value is increased when the OGM is forwarded again, and the approved distance penalty exists locally;

step 3: the ports alternate; forwarding the received frames through different ports, and enabling one Wi-Fi port to either transmit or receive at a certain moment;

step 4: the whole network port alternation is not like the original port alternation function working at the local level, and the multiport strategy can be executed by the whole mesh network;

step 5: the multiport node can be routed to different points to reach the first hop through a multi-path routing protocol;

step 6: when multiple paths are on different ports, protocol distribution frames are sent over legal paths, and these independent frames are sent over the polling scheduling protocol.

4. A multi-scenario automatic intelligent networking communication system according to claim 3, wherein when a certain frequency band is interfered, the link quality of the port of the frequency band is reduced, the port is punished, the TQ value is increased, the OGM of the port informs the whole network, and the frequency band is avoided during message forwarding.

5. The multi-scenario automatic intelligent networking communication system according to claim 3, wherein the routing table set for each port in step 1 is as follows:

a) Each access port corresponds to a routing table;

b) Adding a default routing table to the locally generated message.

6. The multiple scenario, automatic intelligent networking communication system according to claim 3, wherein each port in step 2 complies with the "forward only by optimal neighbors" rule.

7. The system according to claim 1, further comprising APP, n multifrequency devices as servers, wherein the APP is passively replied to the operation of the APP, the APP is not actively initiated to the operation request, and the APP is used as an active initiator of the operation, and performs the following operations on the multifrequency devices:

1) The APP acquires state information of the running of the current equipment from the multi-frequency equipment;

2) The APP issues specific configuration to the multi-frequency equipment, and modifies SSID and channel;

3) The APP issues a specific operation instruction to the multi-frequency equipment;

the information acquisition APP is actively acquired from the equipment through HTTP get operation; the configuration issuing and system operation APP actively issues configuration and instructions to the equipment through HTTP post operation; the communication protocol APP and the equipment adopt HTTP or HTTPS protocol, and the default port number is 10068; the first phase implementation employs the HTTP protocol.

8. The multi-scenario automatic intelligent networking communication system of claim 7, wherein the interaction flow of APP with the multi-frequency device is as follows:

first: adding a device flow;

after APP is connected with the multi-frequency equipment, a get request is initiated; the equipment returns the current configuration and running state of the equipment according to the request; the APP generates configuration information according to the information returned by the equipment in the last step and distributes the configuration information to the equipment through post operation; the equipment replies and confirms according to the issued configuration, and whether the configuration is effective or not; once the equipment is configured successfully, the equipment and the APP link enter a keep-alive state, otherwise, the configuration needs to be issued again;

second, keep-alive procedure;

the APP actively initiates get operation keep-alive to the equipment, and if a plurality of equipment exists in the network, each equipment needs to be periodically polled and keep-alive, so that the information on the APP is ensured to be synchronous with the equipment; the equipment replies a get keep-alive request of the APP;

thirdly, configuring a flow;

the user modifies SSID and password configuration through APP, the APP generates configuration according to information of user configuration, and the configuration is pushed to the device through post operation; if a plurality of devices exist in the network, the devices need to be issued simultaneously; the equipment configures the equipment according to the configuration pushed by the APP, and meanwhile, the configuration result is returned to the APP.