CN113676847A - Anti-interference communication method and system based on Internet of things and intelligent terminal - Google Patents
Anti-interference communication method and system based on Internet of things and intelligent terminal Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
- H04W74/0841—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
- H04W74/0858—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment collision detection
Abstract
The invention provides an anti-interference communication method, an anti-interference communication system and an intelligent terminal based on the Internet of things, wherein the anti-interference communication method based on the Internet of things comprises the following steps: s101: the first equipment initiates conflict detection through broadcasting and receives a communication frequency band detection reply replied by the second equipment according to the conflict detection; s102: and setting a communication frequency band according to the communication frequency band detection reply, and controlling a terminal node connected with the first equipment to reselect a communication channel after the communication frequency band configuration is completed. According to the invention, the first equipment initiates conflict detection through broadcasting, acquires the communication frequency band detection reply sent by the second equipment, sets the communication frequency band and selects the communication channel according to the communication frequency band detection reply, can automatically detect the current conflicting frequency band, and selects the idle frequency band for communication, so that the same frequency data interference is reduced, the efficiency is high, the reliability is good, and the adjustment cost and the working difficulty after channel conflict are reduced.
Description
Technical Field
The invention relates to the field of Internet of things, in particular to an anti-interference communication method and system based on the Internet of things and an intelligent terminal.
Background
With the continuous progress of society, the technology of the internet of things is rapidly developed, and the internet of things is a network which enables all common objects capable of performing independent functions to be interconnected and intercommunicated by relying on information carrying bodies such as the internet, a traditional telecommunication network and the like. The Internet of things digitalizes the real world, realizes information exchange and communication between objects, and has a very wide application range.
With the rapid development of the internet of things, the scene control puts higher requirements on the response speed, however, in order to increase the data transmission amount, a large number of LoRa gateways, repeaters and terminal nodes need to be deployed in the area. However, the LoRa communication has a slow transmission rate and a narrow communication bandwidth, and all communication nodes use the same communication frequency, which inevitably generates co-channel data interference when large-scale data communication is performed.
In order to solve the problem of co-frequency data interference, the prior art adopts a manual selection mode, and communication channels of a gateway and a node are configured in advance manually, so that the mode is low in efficiency and not particularly reliable, and the channel conflict is difficult to adjust or the working difficulty is high after the equipment is installed on site.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an anti-interference communication method based on the Internet of things, an intelligent terminal and a wearable product.
In order to solve the above problems, the present invention adopts a technical solution as follows: an anti-interference communication method based on the Internet of things comprises the following steps: s101: the method comprises the steps that a first device initiates conflict detection through broadcasting, and receives a communication frequency band detection reply of a second device according to the conflict detection reply; s102: and setting a communication frequency band according to the communication frequency band detection reply, and controlling a terminal node connected with the first equipment to reselect a communication channel after the communication frequency band configuration is completed.
Further, the step of initiating, by the first device, collision detection through broadcasting specifically includes: the first device broadcasts and initiates collision detection in a public frequency band in a timing or remote triggering mode.
Further, the communication frequency band detection reply includes a communication frequency band, the number of terminal nodes in the current connection, the signal strength between the terminal nodes, and the packet loss rate of the channel.
Further, the step of setting a communication band according to the communication band detection reply specifically includes: and acquiring a frequency band or a channel meeting preset conditions according to the frequency band detection reply, and setting a communication frequency band according to the frequency band or the channel.
Further, the preset condition is that the channel is in an idle frequency band or a channel with a low utilization rate and a low packet loss rate.
Further, the step of controlling the terminal node connected to the first device to reselect the communication channel specifically includes: and initiating a broadcast network access application to the terminal node through a public frequency band so as to enable the terminal node to access the network again to select a channel.
Further, the frequency of the common frequency band is 476.4 MHz.
Further, the first device and the second device are gateways or relay devices.
Based on the same inventive concept, the invention further provides an intelligent terminal, which comprises a processor and a memory, wherein the processor is in communication connection with the memory, the memory stores a computer program, and the processor executes the anti-interference communication method based on the internet of things according to the computer program.
Based on the same inventive concept, the invention further provides an anti-jamming communication system based on the internet of things, which comprises a first device, a second device and a terminal node, wherein the terminal node and the second device are respectively in communication connection with the first device, and the anti-jamming communication system executes the anti-jamming communication method based on the internet of things according to any one of claims 1 to 8 through the first device, the second device and the terminal node.
Compared with the prior art, the invention has the beneficial effects that: the first device initiates conflict detection through broadcasting, acquires a communication frequency band detection reply sent by the second device, sets a communication frequency band and selects a communication channel according to the communication frequency band detection reply, can automatically detect the current conflicting frequency band, and selects an idle frequency band for communication, so that co-channel data interference is reduced, the efficiency is high, the reliability is good, and the adjustment cost and the working difficulty after channel conflict are reduced.
Drawings
Fig. 1 is a flowchart of an embodiment of an anti-interference communication method based on the internet of things;
fig. 2 is a schematic diagram of an embodiment of the anti-interference communication method based on the internet of things;
FIG. 3 is a block diagram of an embodiment of an intelligent terminal according to the present invention;
fig. 4 is a structural view of one embodiment of the wearing article of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present invention in its various embodiments. However, the technical solution claimed in the present invention can be implemented without these technical details and various changes and modifications based on the following embodiments.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1-2, fig. 1 is a flowchart illustrating an anti-interference communication method based on the internet of things according to an embodiment of the present invention; fig. 2 is a schematic diagram of an embodiment of the anti-interference communication method based on the internet of things. The anti-interference communication method based on the internet of things is described in detail with reference to the attached drawings 1-2.
In this embodiment, the anti-interference communication method based on the internet of things includes:
s101: the first device initiates conflict detection through broadcasting, and receives a communication frequency band detection reply replied by the second device according to the conflict detection.
In this embodiment, the first device and the second device are gateways or relays, and send data to the terminal node or transmit data sent by the terminal node through the first device and the second device.
In this embodiment, the terminal nodes are internet of things devices, where the terminal nodes connected to the same gateway or relay may use the same channel or different channels for data transmission.
The step of the first device initiating collision detection by broadcasting specifically includes: the first device broadcasts and initiates collision detection in the public frequency band in a timing or remote triggering mode.
In other embodiments, the first device and the second device may initiate collision detection in turn, or may detect a communication speed or a packet loss rate between the first device and the terminal node in real time, and initiate collision detection when it is determined that the communication speed is less than a preset value or the packet loss rate is greater than a preset threshold value. And collision detection can be initiated when the number of the terminal nodes is larger than a preset value and the data transmission quantity is larger than a preset value.
In other embodiments, the first device may further obtain the number of second devices within a preset range through distance detection or query, and initiate collision detection when the number of second devices is greater than the first preset value. The preset range is a range in which frequency band interference exists with the first device.
In the above embodiment, both the first device and the second device may initiate collision detection, that is, the identities of the first device and the second device initiating collision detection and the frequency band detection reply may be interchanged according to actual requirements.
In this embodiment, the common frequency band for initiating collision detection is 476.3 MHz. The specific frequency of the common frequency band may be configured according to actual requirements, which is not limited herein.
In this embodiment, the communication band detection reply includes the communication band, the number of currently connected terminal nodes, the signal strength between the terminal nodes, and the packet loss rate of the channel. The communication frequency band detection reply can be sent to the first device through a public frequency band, and can also be transmitted to the first device through wired transmission, Bluetooth, WiFi and other modes.
S102: and setting a communication frequency band according to the communication frequency band detection reply, and controlling a terminal node connected with the first equipment to reselect a communication channel after the communication frequency band configuration is completed.
In this embodiment, the step of setting the communication band according to the communication band detection reply specifically includes: and acquiring a frequency band or a channel meeting preset conditions according to the frequency band detection reply, and setting a communication frequency band according to the frequency band or the channel.
The preset condition is that the channel is in an idle frequency band or a channel with low utilization rate and low packet loss rate.
After receiving a communication frequency band detection reply sent by the second device, the first device searches for an idle frequency band used by the current used device less or no device or a channel with low usage rate and low packet loss rate according to the frequency band and the channel used by the second device.
In other embodiments, when all frequency bands are used, a frequency band or a channel with a small number of terminal nodes and high signal strength in the frequency band is selected according to the terminal node to which the second device is currently connected and the signal strength of communication with the terminal node.
In this embodiment, the step of controlling the terminal node connected to the first device to reselect the communication channel specifically includes: and initiating a broadcast network access application to the terminal node through the public frequency band so that the terminal node accesses the network again to select the channel. And the control terminal node selects a channel with low packet loss rate in the frequency band.
In other embodiments, the end nodes may also be connected to different channels according to their priorities. The higher the priority of the terminal node is, the higher the signal intensity of the used channel is, and the lower the packet loss rate is.
In a specific embodiment, the first device and the second device are gateways, the gateways receive and process a reply information frame of a surrounding gateway, and select an idle frequency band which is not used in a network or a channel with low utilization rate and low packet loss rate to be set as a communication frequency band of the gateway according to collected gateway information; and after the channel configuration is finished, all the terminal nodes are notified by broadcasting to restart the broadcast network access application to the gateway, and the communication channel is reselected.
In this embodiment, when the first device is a gateway, a data protocol format between the terminal node and the gateway is as shown in table one:
table one, data protocol format
By the method, the problem of wireless co-frequency interference in an application environment is solved, the communication reliability is improved, the engineering configuration can be simplified, the efficiency and the flexibility are improved, and the communication instruction and the network stability deployment can be optimized.
Has the advantages that: according to the anti-interference communication method based on the Internet of things, the first equipment initiates conflict detection through broadcasting, the communication frequency band detection reply sent by the second equipment is obtained, the communication frequency band is set and the communication channel is selected according to the communication frequency band detection reply, the current conflicting frequency band can be automatically detected, the idle frequency band is selected for communication, the same frequency data interference is reduced, the efficiency is high, the reliability is good, and the adjustment cost and the working difficulty after channel conflict are reduced.
Based on the same inventive concept, the present invention further provides an intelligent terminal, please refer to fig. 3, fig. 3 is a structural diagram of an embodiment of the intelligent terminal of the present invention, and the intelligent terminal of the present invention is described with reference to fig. 3.
In this embodiment, the intelligent terminal includes a processor and a memory, the processor is in communication connection with the memory, the memory stores a computer program, and the processor executes the anti-interference communication method based on the internet of things according to the computer program.
In this embodiment, the intelligent terminal is a gateway or a repeater, and is connected to the terminal node through the intelligent terminal, so as to implement data transmission between the terminal node and the control background.
Has the advantages that: according to the intelligent terminal, the first equipment initiates conflict detection through broadcasting, the communication frequency band detection reply sent by the second equipment is obtained, the communication frequency band is set and the communication channel is selected according to the communication frequency band detection reply, the current conflicting frequency band can be automatically detected, the idle frequency band is selected for communication, the same frequency data interference is reduced, the efficiency is high, the reliability is good, and the adjustment cost and the working difficulty after channel conflict are reduced.
Based on the same inventive concept, the present invention further provides an anti-interference communication system based on the internet of things, please refer to fig. 4, and fig. 4 is a structural diagram of an embodiment of the anti-interference communication system based on the internet of things according to the present invention.
In this embodiment, the anti-interference communication system includes a first device, a second device, and a terminal node, where the terminal node and the second device are respectively in communication connection with the first device, and the anti-interference communication system executes the anti-interference communication method based on the internet of things according to the foregoing embodiment through the first device, the second device, and the terminal node.
In the several embodiments provided in the present application, it should be understood that the disclosed terminal, system and method can be implemented in other manners. For example, the above-described terminal embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or 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 application 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 integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for executing all or part of the steps of the method described in the embodiments of the present application through a computer device (which may be a personal computer, a server, or a network device). And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. An anti-interference communication method based on the Internet of things is characterized in that the anti-interference communication method based on the Internet of things applied to a wearable product comprises the following steps:
s101: the method comprises the steps that a first device initiates conflict detection through broadcasting, and receives a communication frequency band detection reply of a second device according to the conflict detection reply;
s102: and setting a communication frequency band according to the communication frequency band detection reply, and controlling a terminal node connected with the first equipment to reselect a communication channel after the communication frequency band configuration is completed.
2. The internet of things-based anti-jamming communication method according to claim 1, wherein the step of initiating collision detection by the first device through broadcasting specifically includes:
the first device broadcasts and initiates collision detection in a public frequency band in a timing or remote triggering mode.
3. The internet of things-based anti-interference communication method according to claim 1, wherein the communication band detection reply includes a communication band, the number of terminal nodes in the current connection, signal strength between the terminal nodes, and a packet loss rate of a channel.
4. The internet of things-based anti-interference communication method according to claim 1, wherein the step of setting the communication band according to the communication band detection reply specifically comprises:
and acquiring a frequency band or a channel meeting preset conditions according to the frequency band detection reply, and setting a communication frequency band according to the frequency band or the channel.
5. The Internet of things-based anti-interference communication method according to claim 4, wherein the preset condition is that the communication channel is in an idle frequency band or a channel with a low usage rate and a low packet loss rate.
6. The internet of things-based anti-interference communication method according to claim 1, wherein the step of controlling the terminal node connected to the first device to reselect the communication channel specifically includes:
and initiating a broadcast network access application to the terminal node through a public frequency band so as to enable the terminal node to access the network again to select a channel.
7. The internet of things-based anti-jamming communication method according to claim 6, wherein the frequency of the common frequency band is 476.4 MHz.
8. The internet of things-based anti-jamming communication method according to claim 1, wherein the first device and the second device are gateways or relay devices.
9. An intelligent terminal, characterized in that the intelligent terminal comprises a processor and a memory, the processor is connected with the memory in a communication mode, the memory stores a computer program, and the processor executes the anti-interference communication method based on the internet of things according to any one of claims 1-8 according to the computer program.
10. An anti-interference communication system based on the internet of things, which is characterized by comprising a first device, a second device and a terminal node, wherein the terminal node and the second device are respectively in communication connection with the first device, and the anti-interference communication system executes the anti-interference communication method based on the internet of things according to any one of claims 1 to 8 through the first device, the second device and the terminal node.
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| CN115694547A (en) * | 2022-10-11 | 2023-02-03 | 时迈智慧科技有限公司 | Intelligent anti-interference method, device, equipment and medium for radio communication |
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Application publication date: 20211119 |