CN117255016A - Ad hoc networking method and device for WiFi equipment of Internet of things and computer readable storage medium - Google Patents

Ad hoc networking method and device for WiFi equipment of Internet of things and computer readable storage medium Download PDF

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Publication number
CN117255016A
CN117255016A CN202310580022.9A CN202310580022A CN117255016A CN 117255016 A CN117255016 A CN 117255016A CN 202310580022 A CN202310580022 A CN 202310580022A CN 117255016 A CN117255016 A CN 117255016A
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China
Prior art keywords
equipment
networking
information
networked
internet
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CN202310580022.9A
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Chinese (zh)
Inventor
宋才福
何佳
刘卫兵
章玺
田航挺
张晟学
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Zhejiang Lierda Internet Of Things Technology Co ltd
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Zhejiang Lierda Internet Of Things Technology Co ltd
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Priority to CN202310580022.9A priority Critical patent/CN117255016A/en
Publication of CN117255016A publication Critical patent/CN117255016A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0889—Techniques to speed-up the configuration process
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y10/00—Economic sectors
    • G16Y10/75—Information technology; Communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Development Economics (AREA)
  • Economics (AREA)
  • General Business, Economics & Management (AREA)
  • Computing Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses an Ad hoc network method, device and computer readable storage medium for WiFi devices of the Internet of things. The method solves the problems of difficult network distribution, slow network distribution speed and high use threshold of the Internet of things equipment in the existing network distribution method. The method comprises the steps that networking equipment and equipment to be networked are mutually discovered; the networking equipment and the equipment to be networked are connected through interaction of a request frame, a reply frame and a confirmation frame. The WiFi equipment of the Internet of things can automatically and quickly network and quickly communicate by neighbor self-discovery and self-perception of surrounding WiFi equipment of the Internet of things, so that the problems of difficult network distribution and slow network distribution of the equipment of the Internet of things are solved, and the use threshold of the equipment of the Internet of things is reduced.

Description

Ad hoc networking method and device for WiFi equipment of Internet of things and computer readable storage medium
Technical Field
The invention relates to the technical field of communication, in particular to an ad hoc network method, equipment and a computer readable storage medium for WiFi equipment of the Internet of things.
Background
The WiFi equipment of the Internet of things firstly needs to be added into a network to form a local area network so as to carry out data communication, the process of adding the network is generally called as distribution network, the distribution network of the equipment of the Internet of things is a big pain point because of most of the equipment of the Internet of things does not have a display screen and a physical keyboard, and various distribution network modes exist in the current industry, such as: smartConfig distribution network: the internet of things equipment enters a hybrid mode to receive the air packet, the mobile phone encodes the SSID and the password through a group of broadcast/multicast packets, and the internet of things equipment decodes the SSID and the password after receiving the packet. SoftAP distribution network: the equipment of the Internet of things is started to be in a SoftAP mode, the mobile phone is used as an STA to connect with the SoftAP, and SSID and the password are sent to the equipment through a socket. Bluetooth distribution network: and sending the SSID and the password to the Internet of things equipment through the Bluetooth signal. NFC distribution network: close proximity, send SSID and password to thing networking device through NFC. Two-dimensional code distribution network: the mobile phone encodes the SSID and the password into the two-dimensional code, and the Internet of things device shoots the two-dimensional code through the camera and decodes the two-dimensional code to obtain the SSID and the password. Sonic distribution network: and the mobile phone sends the SSID and the password code through sound waves, and the WiFi equipment of the Internet of things acquires sound wave signals to acquire the SSID and the password.
However, the current various network distribution modes have the following defects:
1. the WiFi devices of the internet of things firstly need to join in a network to form a local area network (connected to a router) so as to perform data communication.
2. The network distribution has limitation that the network distribution is required to be carried out for the WiFi equipment of the Internet of things by means of a mobile phone or Bluetooth, NFC, cameras and other devices, so that the cost is increased.
3. The whole network distribution process is complicated, and the network distribution is slow only for one WiFi device of the Internet of things at a time.
Disclosure of Invention
The invention mainly solves the problems of difficult network distribution, slow network distribution speed and high use threshold of equipment of the Internet of things in the existing network distribution method, and provides an Internet of things WiFi equipment ad hoc network method, equipment and a computer readable storage medium.
The technical problems of the invention are mainly solved by the following technical proposal: an Ad hoc network method of WiFi equipment of the Internet of things comprises the following steps:
the networking equipment and the equipment to be networked are mutually discovered;
the equipment to be networked sends networking request information to the networking equipment, the networking equipment performs first verification according to the networking request information, and after passing through the first verification, the equipment to be networked sends reply information to the equipment to be networked;
the equipment to be networked performs the second verification according to the reply information, and sends the confirmation information to the networking equipment after passing the second verification;
and the networking equipment performs third verification according to the confirmation information, sends networking establishment information to the equipment to be networked after confirmation, and completes networking according to the networking establishment information and the networking equipment.
And synchronizing, namely synchronizing the time sequence of the message when the networking equipment joins the cluster formed by the networking equipment. Communications are set for specific time frames and channels to reduce power consumption. By synchronizing, devices are enabled to search for other devices and services without having to constantly transmit and receive. Synchronized transmission and reception of beacons on the common channel allows for reduced frequency of transmitting timing messages.
According to the method, the WiFi equipment of the Internet of things can be found by the neighbors and perceived by the neighbors, the surrounding WiFi equipment of the Internet of things can be automatically and quickly networked and quickly communicated, the problems of difficult network distribution and slow network distribution of the equipment of the Internet of things are solved, and the use threshold of the equipment of the Internet of things is reduced.
As a preferred solution, the mutual discovery between the networking device and the device to be networked specifically includes:
the networking device sends discovery beacon information to the signal area of the networking device, wherein the discovery beacon information comprises networking device existence information; the networking device discovers the networking device or the cluster by using the discovery beacon information to indicate the existence of the networking device and receiving the discovery beacon information after the networking device enters the networking device signal area.
The networking equipment sends discovery release information to the signal area of the networking equipment, wherein the discovery release information comprises networking service information provided by the networking equipment;
the equipment to be networked discovers the networking equipment according to the discovery beacon information, acquires networking service information according to the discovery release information, judges whether the equipment to be networked is required service, and sends discovery subscription information to the networking equipment after confirming the equipment to be networked is required service, wherein the discovery subscription information comprises basic information of the equipment to be networked.
The networking device sends discovery beacon information to indicate the existence of the networking device, and the networking device is discovered by the networking device to be networked in the range of the networking device. The networking device sends discovery release information to indicate networking services provided by the networking device, the networking device detects whether the networking device contains the wanted service after receiving the discovery release information, and sends discovery subscription information to the networking device after detecting the wanted service.
Each networking device holds a clock with an accuracy of "1 millisecond", and the time stamp is incremented by 1 every millisecond. The networking device carries own time stamp when sending the discovery beacon frame, and other devices to be networked change the time stamp of own clock into the same time stamp carried by the discovery beacon frame sent by the networking device after receiving the discovery beacon frame sent by the networking device, so as to achieve the clock synchronization of the networking device and the devices to be networked.
As a preferred solution, the first verification performed by the networking device according to the networking request information specifically includes:
the networking equipment acquires networking request information, wherein the networking request information comprises node type and encryption pre-configuration information, and the networking equipment decrypts and stores the encryption pre-configuration information;
the networking equipment judges whether the equipment to be networked is an internal node of the network according to the node type, if so, the equipment to be networked sends reply information to the equipment to be networked, wherein the reply information comprises networking permission information and received encryption pre-configuration information; if not, the method does not respond to the request information.
The networking request information sent by the equipment to be networked in the scheme comprises node type, namely equipment type, the current level of the node, the allowed maximum level in the network, the number of current sub-nodes, the maximum acceptable downlink connection number and encryption preconfiguration information. The networking device judges whether the equipment to be networked is an internal node of the affiliated network according to the node type information, and is used for ensuring that the equipment to be networked is of the same networking device type, and when the equipment to be networked is determined to be the internal node of the affiliated network, namely the same networking device type, the equipment to be networked is required to send reply information. The encrypted pre-configuration information included in the reply information is encrypted pre-configuration information acquired from the networking request information. After the networking equipment acquires the encryption pre-configuration information, the networking equipment carries out decryption analysis on the encryption pre-configuration information to acquire an SN code and a unique identification code of the equipment to be networked.
As a preferred solution, the device to be networked performs the second verification according to the reply information, which specifically includes:
the equipment to be networked judges whether the information of allowing networking is contained according to the reply information, if so, judges that networking is allowed, judges the encrypted pre-configuration information, and if not, does not respond to the reply information;
the equipment to be networked carries out decryption analysis on the encrypted preconfiguration information to obtain equipment identity information, compares the obtained equipment identity information with the equipment identity information to be networked, if the equipment identity information is the same with the equipment identity information to be networked, sends confirmation information comprising the encrypted preconfiguration information to the networking equipment, and if the equipment identity information is not the same with the equipment identity information to be networked, does not respond to the reply information.
After the networking equipment receives networking permission information in the reply information, the networking equipment confirms networking permission, analyzes and judges encryption pre-configuration information in the received reply information, decrypts the encryption pre-configuration information to obtain equipment identity information, wherein the equipment identity information comprises equipment SN codes and unique identification codes, compares the obtained equipment identity information with self equipment identity information, and if the equipment identity information is matched with the equipment identity information, the reply information is the reply information sent by the networking equipment. The equipment to be networked sends confirmation information to the networking equipment, and the confirmation information also comprises encryption pre-configuration information.
As a preferred solution, the third verification performed by the networking device according to the confirmation information specifically includes:
the networking equipment obtains encryption pre-configuration information from the confirmation information, and performs decryption analysis on the encryption pre-configuration information to obtain identity information of the equipment to be networked;
the networking equipment compares the stored identity information of the equipment to be networked with the identity information of the equipment to be networked obtained by current decryption, if the identity information is consistent, the confirmation information is judged to be from the same equipment to be networked, networking establishment information is sent to the equipment to be networked, the networking establishment information comprises a networking data channel key, and if the identity information is inconsistent, the networking establishment information is not responded to the confirmation information.
After receiving the confirmation information, the networking equipment carries out decryption analysis on the encrypted pre-configuration information to obtain the identity information of the equipment to be networked, compares the stored identity information of the equipment to be networked with the obtained identity information of the equipment to be networked, if the stored identity information of the equipment to be networked is the same as the obtained identity information of the equipment to be networked, the equipment to be networked wants to send networking establishment information, and the equipment to be networked completes networking according to the networking establishment information and the networking equipment.
An internet of things WiFi device comprising a memory, a processor, the memory storing computer readable instructions that are executed on the processor, the processor executing the computer readable instructions to implement the method of any of claims 1-5.
A computer readable storage medium storing computer readable instructions which, when executed by a processor, employ the method of any of claims 1-5.
Therefore, the invention has the advantages that: the WiFi equipment of the Internet of things can automatically and quickly network and quickly communicate by neighbor self-discovery and self-perception of surrounding WiFi equipment of the Internet of things, the problems that the equipment of the Internet of things is difficult to allocate and slow to allocate are solved, and the use threshold of the equipment of the Internet of things is reduced.
Drawings
FIG. 1 is a schematic flow chart of the method of the present invention;
fig. 2 is a block diagram of a construction of the apparatus of the present invention.
1-processor 2-memory.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Example 1:
the method for networking WiFi equipment of the Internet of things comprises the steps of synchronizing and self-perception discovery among WiFi equipment of the Internet of things, and establishing networking by exchanging information. Where self-aware discovery includes device discovery, service discovery.
As shown in fig. 1, the method comprises the steps of:
step one: the networking equipment and the equipment to be networked are mutually discovered;
the networking equipment sends a discovery beacon frame to the signal area of the networking equipment;
the networking equipment sends a discovery release frame to the signal area of the networking equipment, wherein the discovery release frame comprises networking equipment basic information and service information;
the equipment to be networked discovers the networking equipment according to the discovery beacon information, judges whether the required service exists according to the discovery release information, and sends a discovery subscription frame to the networking equipment after confirming that the required service exists, wherein the discovery subscription frame comprises basic information of the equipment to be networked.
The networking device carries own time stamp when sending the discovery beacon frame, and other devices to be networked change the time stamp of own clock into the same time stamp carried by the discovery beacon frame sent by the networking device after receiving the discovery beacon frame sent by the networking device, so as to achieve the clock synchronization of the networking device and the devices to be networked.
Step two: the networking equipment establishes networking connection with the networking equipment; the method specifically comprises the following steps:
the equipment to be networked sends a networking data path request frame to the networking equipment, wherein the networking data path request frame comprises a node type, encryption pre-configuration information, the current level of the node, the maximum level allowed in the network, the number of current sub-nodes and the maximum acceptable downlink connection number.
The networking equipment receives the networking data path request frame and decrypts the networking data path request frame, acquires and stores the information contained in the networking data path request frame.
The networking equipment judges whether the equipment to be networked is an internal node of the network according to the node type, if so, the networking equipment to be networked sends a networking data path reply frame to the equipment to be networked, wherein the networking data path reply frame comprises networking allowing information and received encryption pre-configuration information; if not, the request frame is not responded.
The equipment to be networked receives the reply frame of the networking data path, analyzes the reply frame of the networking data path to judge whether the reply frame contains networking permission information, if so, judges networking permission, judges encryption pre-configuration information, and if not, does not respond to the reply frame;
the encryption pre-configuration information judgment comprises the following steps:
the equipment to be networked decrypts the encrypted pre-configuration information in the networking data path reply frame to obtain equipment identity information, compares the obtained equipment identity information with the equipment to be networked identity information, if the equipment to be networked identity information is the same as the equipment to be networked identity information, sends the networking data path confirmation frame comprising the encrypted pre-configuration information to the networking equipment, and does not respond to the reply frame if the equipment to be networked identity information is not the same as the equipment to be networked identity information.
The networking equipment receives the networking data path confirmation frame, obtains encryption pre-configuration information in the networking data path confirmation frame, and carries out decryption analysis on the encryption pre-configuration information to obtain identity information of the equipment to be networked;
the networking equipment compares the stored identity information of the equipment to be networked with the identity information of the equipment to be networked obtained by current decryption, if the identity information is consistent, the confirmation information is judged to come from the same equipment to be networked, a networking data path key installation frame is sent to the equipment to be networked, and if the identity information is inconsistent, the networking data path key installation frame is not responded to the confirmation frame.
The device to be networked receives the networking data path key An Zhuangzhen, and completes the link establishment with the networking device according to the key information in the networking data path key installation frame.
And synchronizing, namely synchronizing the time sequence of the message when the networking equipment joins the cluster formed by the networking equipment. Communications are set for specific time frames and channels to reduce power consumption.
Example 2:
the embodiment of the WiFi device for the Internet of things comprises a memory 2 and a processor 1, as shown in FIG. 2, wherein the memory is connected with the processor. The processor comprises a universal asynchronous receiver transmitter interface UART and a general purpose input output interface GPIO, wherein the universal asynchronous receiver transmitter interface is used for asynchronous communication, the general purpose input output interface can be configured through software, and the general purpose input output interface can be configured into control signals or data signals. Computer readable instructions are run on a memory and executed by a processor to implement the method described in embodiment 1.
Example 3:
the present embodiment is a computer readable storage medium storing computer readable instructions that when executed by a processor employ the method described in embodiment 1.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (7)

1. An Ad hoc network method for WiFi equipment of the Internet of things is characterized by comprising the following steps of: the method comprises the following steps:
the networking equipment and the equipment to be networked are mutually discovered;
the equipment to be networked sends networking request information to the networking equipment, the networking equipment performs first verification according to the networking request information, and after passing through the first verification, the equipment to be networked sends reply information to the equipment to be networked;
the equipment to be networked performs the second verification according to the reply information, and sends the confirmation information to the networking equipment after passing the second verification;
and the networking equipment performs third verification according to the confirmation information, sends networking establishment information to the equipment to be networked after confirmation, and completes networking according to the networking establishment information and the networking equipment.
2. The method for self-networking the WiFi devices of the internet of things according to claim 1, wherein the networking device and the device to be networked find each other, specifically includes:
the networking device sends discovery beacon information to the signal area of the networking device, wherein the discovery beacon information comprises networking device existence information;
the networking equipment sends discovery release information to the signal area of the networking equipment, wherein the discovery release information comprises networking service information provided by the networking equipment;
the equipment to be networked discovers the networking equipment according to the discovery beacon information, acquires networking service information according to the discovery release information, judges whether the equipment to be networked is required service, and sends discovery subscription information to the networking equipment after confirming the equipment to be networked is required service, wherein the discovery subscription information comprises basic information of the equipment to be networked.
3. The method for ad hoc networking of the WIFI devices of the internet of things according to claim 1, wherein the first verification is performed by the networking device according to the networking request information, specifically including:
the networking equipment acquires networking request information, wherein the networking request information comprises node type and encryption pre-configuration information, and the networking equipment decrypts and stores the encryption pre-configuration information;
the networking equipment judges whether the equipment to be networked is an internal node of the network according to the node type, if so, the equipment to be networked sends reply information to the equipment to be networked, wherein the reply information comprises networking permission information and received encryption pre-configuration information; if not, the method does not respond to the request information.
4. The method for Ad hoc networking of WiFi equipment in the Internet of things according to claim 3, wherein the equipment to be networked performs the second verification according to the reply information, and specifically comprises the following steps:
the equipment to be networked judges whether the information of allowing networking is contained according to the reply information, if so, judges that networking is allowed, judges the encrypted pre-configuration information, and if not, does not respond to the reply information;
the equipment to be networked carries out decryption analysis on the encrypted preconfiguration information to obtain equipment identity information, compares the obtained equipment identity information with the equipment identity information to be networked, if the equipment identity information is the same with the equipment identity information to be networked, sends confirmation information comprising the encrypted preconfiguration information to the networking equipment, and if the equipment identity information is not the same with the equipment identity information to be networked, does not respond to the reply information.
5. The method for Ad hoc networking of WiFi equipment according to claim 4, wherein the networking equipment performs the third verification according to the confirmation information, and specifically comprises the following steps:
the networking equipment obtains encryption pre-configuration information from the confirmation information, and performs decryption analysis on the encryption pre-configuration information to obtain identity information of the equipment to be networked;
the networking equipment compares the stored identity information of the equipment to be networked with the identity information of the equipment to be networked obtained by current decryption, if the identity information is consistent, the confirmation information is judged to be from the same equipment to be networked, networking establishment information is sent to the equipment to be networked, the networking establishment information comprises a networking data channel key, and if the identity information is inconsistent, the networking establishment information is not responded to the confirmation information.
6. The utility model provides a thing networking wiFi equipment which characterized in that: comprising a memory, a processor, the memory storing computer readable instructions for execution on the processor, the processor executing the computer readable instructions to perform the method of any one of claims 1-5.
7. A computer-readable storage medium, characterized by: computer readable instructions stored which, when executed by a processor, employ the method of any of claims 1-5.
CN202310580022.9A 2023-05-22 2023-05-22 Ad hoc networking method and device for WiFi equipment of Internet of things and computer readable storage medium Pending CN117255016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310580022.9A CN117255016A (en) 2023-05-22 2023-05-22 Ad hoc networking method and device for WiFi equipment of Internet of things and computer readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310580022.9A CN117255016A (en) 2023-05-22 2023-05-22 Ad hoc networking method and device for WiFi equipment of Internet of things and computer readable storage medium

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CN117255016A true CN117255016A (en) 2023-12-19

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