CN112867036A - Ad-HOC Ad HOC network system and method - Google Patents

Ad-HOC Ad HOC network system and method Download PDF

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CN112867036A
CN112867036A CN202110174129.4A CN202110174129A CN112867036A CN 112867036 A CN112867036 A CN 112867036A CN 202110174129 A CN202110174129 A CN 202110174129A CN 112867036 A CN112867036 A CN 112867036A
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node module
host
hoc
information
group number
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张世彤
张�杰
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INST OF SCIENT AND TECHNICAL INFORMATION OF JILIN PROVINCE
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/713Spread spectrum techniques using frequency hopping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/18Self-organising networks, e.g. ad-hoc networks or sensor networks

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  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses an Ad-HOC Ad HOC network system and a method thereof, wherein the Ad-HOC Ad HOC network system comprises: a host and a plurality of node modules. Each node module is in wireless communication with the host, wherein the host is used for sending a configuration file to the node module, the node module is used for reading and storing network group number information and frequency hopping parameter information in the configuration file after receiving the configuration file, and is further used for setting the network group number and the wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information. The Ad-HOC Ad HOC network system and the method can ensure the accuracy and the timeliness of the signal data of the multi-node module during long-distance transmission.

Description

Ad-HOC Ad HOC network system and method
Technical Field
The invention relates to the technical field of Internet of things, in particular to an Ad-HOC Ad HOC network system and method.
Background
The wireless ad hoc network is a temporary multi-hop autonomous system consisting of a group of movable nodes with wireless receiving and transmitting devices, does not depend on preset infrastructure, has the characteristics of temporary networking, quick expansion, no control center, strong survivability and the like, has wide application prospect in military, civil and civil aspects, and is a hotspot problem in the current network research. In the recent technological development process, a Zigbee wireless ad hoc network technology is widely used.
The inventor finds that the defects of high hardware cost, poor communication stability, lack of direct communication with the internet and the like of the Zigbee wireless ad hoc network technology are the bottleneck of development of the Zigbee technology all the time in the process of realizing the invention. At present, the domestic Zigbee technology mainly adopts the frequency of 2.5G in an ISM frequency band, and has weak diffraction capability and weak wall penetrating capability. In a home environment, even a door, a window and a non-bearing wall can greatly reduce the signal. Some manufacturers will use a radio frequency power amplifier to amplify 2.5G signals, but this will cause additional radiation pollution, and at the same time, it is against the original purpose of Zigbee that has low power consumption and energy saving. Secondly, a certain technical foundation is needed for application development by using a Zigbee protocol stack, and the development difficulty is also a technical threshold for large-area landing of the Zigbee technology. Moreover, the ad hoc network system of the Zigbee technology needs to specify the network group number and the channel number in the program code, which is not favorable for the secondary multiplexing of the hardware.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an Ad-HOC Ad HOC network system and method, which can ensure the accuracy and the timeliness of transmission of signal data of a multi-node module during long-distance transmission.
To achieve the above object, the present invention provides an Ad-HOC network system, comprising: a host and a plurality of node modules. Each node module is in wireless communication with the host, wherein the host is used for sending a configuration file to the node module, the node module is used for reading and storing network group number information and frequency hopping parameter information in the configuration file after receiving the configuration file, and is further used for setting the network group number and the wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information.
In an embodiment of the present invention, the host is further configured to establish peer-to-peer communication with each node module on the same wireless communication frequency.
In an embodiment of the present invention, the establishing the peer-to-peer communication between the host and the node module includes: and the host and the node module exchange and store addresses through two handshakes.
In an embodiment of the present invention, the Ad-HOC network system further includes: servers and terminal applications. The server and the host machine are in wired communication or wireless communication through an MQTT standard communication protocol (message queue telemetry transmission protocol). And the terminal application program and the server are in wired communication or wireless communication through an MQTT standard communication protocol, and the terminal application program is used for sending a control command to the host through the server.
In an embodiment of the present invention, the node module includes: the device comprises a first single chip microcomputer, a second single chip microcomputer and a transmission module. The first single chip microcomputer is used for acquiring data of the physical variables through the sensor unit. The second single chip microcomputer is connected with the first single chip microcomputer and used for controlling the receiving and sending of the data of the physical variables, wherein a plurality of storage spaces of the physical variables are arranged in the second single chip microcomputer in a software configuration mode, the storage space of each physical variable is used for storing the type of the physical variable and the collected data of the physical variable, and the storage space of each physical variable is configured with an index number. The transmission module is connected with the second single chip microcomputer and used for receiving the data of the physical variables sent by the second single chip microcomputer and sending the data of the physical variables, the index numbers of the storage spaces corresponding to the physical variables and the address information of the node modules to the host, wherein the address information of the node modules is set by the node modules according to network group numbers.
Based on the same inventive concept, the invention also provides an Ad-HOC Ad HOC networking method, which comprises the following steps: after the node module is powered on, reading information in the memory; and if network group number information and frequency hopping parameter information are read, setting the network group number and the wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information, wherein the network group number information and the frequency hopping parameter information are issued to the node module by the host in a wireless communication mode.
In an embodiment of the present invention, the Ad-HOC networking method further includes: if the node module does not read the network group number information and the frequency hopping parameter information, the node module keeps a receiving state; when the network group number information and the frequency hopping parameter information are read, setting the network group number and the wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information; and the node module automatically restarts.
In an embodiment of the present invention, the Ad-HOC networking method further includes: and if the node module reads the host binding information, establishing point-to-point communication with the host in the host binding information, wherein the host binding information is issued to the node module by the host in a wireless communication mode, and the wireless communication frequency of the host in the host binding information is the same as that of the node module.
In an embodiment of the present invention, the Ad-HOC networking method further includes: if the node module does not read the host binding information, the node module keeps a receiving state; after the host binding information is read, point-to-point communication is established with the host in the host binding information; and the node module automatically restarts.
In an embodiment of the present invention, the Ad-HOC networking method further includes: a terminal application program sends a control command to the host through an MQTT standard communication protocol, wherein the control command is used for reading the physical variable of the node module; the host generates a configuration file according to the control command and issues the configuration file to the node module in a wireless communication mode, wherein the configuration file comprises address information of the node module to be read and an index number of a physical variable; after the node module reads the configuration file, reading the data of the physical variable according to the address information of the node module to be read and the index number of the physical variable; the node module sends the data of the physical variable to the host; and the host returns the data of the physical variable to the terminal application program.
Compared with the prior art, according to the Ad-HOC Ad HOC network system and the Ad-HOC Ad HOC network method, the host sends the frequency hopping parameter information and the network group number information to the node module, the node module can set frequency hopping and the network group number of the node module, and wireless signal isolation is formed on hardware and software in a mode of frequency hopping and network group number, so that the defects that the current wireless data transmission distance is too short and the penetrability is not strong are overcome, and the accuracy and the transmission timeliness of signal data of a multi-node module during long-distance transmission are guaranteed. In addition, in a preferred embodiment, a flexible adaptive platform mode is adopted, one-time development can be applied to different practical scenes, the application range of facility equipment is expanded, the application threshold of an application is reduced, and a certain promotion effect is generated on popularization and development of a wireless sensor network technology.
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FIG. 1 is a diagram of the components of an Ad-HOC Ad HOC network system according to an embodiment of the present invention;
FIG. 2 is a component of an Ad-HOC Ad HOC network system according to yet another embodiment of the present invention;
fig. 3 is a block diagram illustrating steps of an Ad-HOC networking method according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is an Ad-HOC networking system according to an embodiment of the present invention, the system including: host 10, a plurality of node modules 11. Host 10 may be connected to each node module 11 via RF433M for wireless communication. The host 10 is configured to send a configuration file to the node module 11, and the node module 11 is configured to, after receiving the configuration file, read and store network group number information and frequency hopping parameter information in the configuration file, and further configured to set a network group number and a wireless communication frequency of the node module 11 according to the network group number information and the frequency hopping parameter information. Wherein, the wireless communication frequency is set between 430M and 900M.
Therefore, in the present embodiment, the host 10 issues a configuration file, and the configuration file configures the network group number information and the frequency hopping parameter information that are not identical for each node module 11, so that each node module 11 realizes automatic frequency hopping on the basis of 433M, and each node does not concentrate on the frequency of 433M for communication but disperses in different frequencies for wireless communication, thereby forming isolation of wireless signals on hardware; and each node can be provided with different network group numbers, wireless signal isolation is formed on software, signal transmission is more stable, and the accuracy and timeliness of multi-node signal data during remote transmission are guaranteed.
Specifically, in this embodiment, the host 10 is further configured to establish peer-to-peer communication with each node module 11 at the same wireless communication frequency. The host 10 establishing point-to-point communication with the node module 11 includes: the host 10 and the node module 11 exchange and store addresses through two handshakes, and form point-to-point communication. Thus, a many-to-one communication mechanism is established between each node and the host 10 at the same wireless communication frequency.
Preferably, in the Ad-HOC network system, in order to implement the function of acquiring physical variables (temperature, humidity, noise, gas concentration, illumination intensity, etc.), the node module 11 includes: the device comprises a first single chip microcomputer, a second single chip microcomputer and a transmission module. The first single chip microcomputer is used for acquiring data of the physical variables through the sensor unit. The second single chip microcomputer is connected with the first single chip microcomputer and used for controlling the receiving and sending of the data of the physical variables, wherein a plurality of storage spaces of the physical variables are arranged in the second single chip microcomputer in a software configuration mode, the storage space of each physical variable is used for storing the type of the physical variable and the collected data of the physical variable, and the storage space of each physical variable is configured with an index number. The transmission module is connected to the second single chip for receiving the data of the physical variable sent by the second single chip and sending the data of the physical variable, the index number of the storage space corresponding to the physical variable and the address information of the node module 11 to the host 10, wherein the address information of the node module 11 is set by the node module 11 according to the network group number. The host 10 can read and write the value of the specified physical variable and obtain the type of the sensor corresponding to the physical variable according to the index number of the storage space corresponding to the physical variable and the address information of the node module 11.
Therefore, in this embodiment, the node module 11 can be developed once, used for multiple times in different scenes, and does not need secondary development, through software configuration, the program in the second single chip microcomputer of the node module 11 has multiple variable storage spaces, when the first single chip microcomputer obtains variable values of different sensors, the variable storage spaces are placed into different variable storage spaces, the storage spaces contain physical variable types (sensor types) and variable values, and the physical variable types and the variable values are arranged and distinguished through index numbers, after the node module 11 is connected with the host 10, the host 10 informs the host 10 of the own variable information, and the host 10 can read and write the specified variable in the mode of address information of the node module 11 + the physical variable index numbers so as to clarify the sensor types and the collected values. The wireless networking and sensor sampling can be separately executed in the mode, the sensor is only required to be replaced when a scene is replaced, a large amount of program development work is not required, and the development difficulty in the practical application of the Internet of things is reduced. Meanwhile, an effective intermediate monitoring mechanism can be formed by reading the index number of the physical variable in the host 10, a good working means is provided for a system debugging task, a set of suitable wireless sensor network is formed particularly in the field of internet of things, and a great promotion effect is provided for the specific implementation of the application scene of the internet of things technology.
Specifically, in this embodiment, STC15W4K56S4 singlechip can be chooseed for use to first singlechip, and the STM32F103 singlechip can be chooseed for use to the second singlechip, and transmission module can select SI4432 transmission module for use, and wherein communication connection is established through the SPI mode to STM32F103 singlechip and SI4432 transmission module, and the receipt and the transmission of main control data, and STC15W4K56S4 singlechip is mainly responsible for the collection work of sensor. When the STC15W4K565S4 singlechip acquires the sampling value of the sensor and then transmits the sampling value to the STM32F103 singlechip in a TTL serial port mode, and the STM32F103 singlechip receives data and then transmits the data to the host 10 through the SI4432 transmission module.
In order to facilitate a user to control the node module 11 or obtain data of the node module 11, in a preferred embodiment, the Ad-HOC network system further includes: a server 12 and a terminal application 13.
The server 12 and the host 10 are in wired or wireless communication via MQTT standard communication protocol.
The terminal application 13 and the server 12 are in wired communication or wireless communication through an MQTT standard communication protocol, and the terminal application 13 is used for sending a control command to the host 10 through the server 12. The terminal application 13 can be installed on a mobile phone, a computer, etc., and a user can conveniently control and manage the node module 11 and obtain data.
Based on the same inventive concept, the invention also provides an Ad-HOC Ad HOC networking method. As shown in fig. 3, in an alternative embodiment, the Ad-HOC networking method includes the following steps.
The node module reads the information in the memory after being powered on in step S1.
The network group number and the communication frequency are set in step S2: and if the network group number information and the frequency hopping parameter information are read, setting the network group number and the wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information, wherein the network group number information and the frequency hopping parameter information are issued to the node module by the host.
Binding with the host in step S3: and if the node module reads the host binding information, establishing point-to-point communication with the host in the host binding information, wherein the host binding information is issued to the node module by the host, and the host and the node module in the information are under the same wireless communication frequency.
In one embodiment, the Ad-HOC networking method further comprises: if the node module does not read the network group number information and the frequency hopping parameter information, the receiving state is kept; when the network group number information and the frequency hopping parameter information in the configuration file are read, setting the network group number and the wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information; and then the node module automatically restarts.
In one embodiment, the Ad-HOC networking method further comprises: if the node module does not read the host binding information, the node module keeps a receiving state; after reading the host binding information, establishing point-to-point communication with the host in the host binding information; and then the node module automatically restarts.
Preferably, in order to facilitate a user to control a node module or acquire data of the node module, the Ad-HOC networking method according to an embodiment further includes: the terminal application program sends a control command to the host through an MQTT standard communication protocol, wherein the control command is used for reading the physical variables of the node modules; secondly, the host generates a configuration file according to the control command and issues the configuration file to the node modules in a wireless communication mode, wherein the configuration file comprises address information of the node modules to be read and index numbers of physical variables; after reading the configuration file, the node module reads the data of the physical variable according to the address information of the node module to be read and the index number of the physical variable; then the node module sends the data of the physical variable to the host; and finally, the host returns the data of the physical variable to the terminal application program.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. An Ad-HOC networking system comprising:
a host; and
a plurality of node modules, each node module in wireless communication with the host,
the host is configured to send a configuration file to the node module, and the node module is configured to read and store network group number information and frequency hopping parameter information in the configuration file after receiving the configuration file, and is further configured to set a network group number and a wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information.
2. The Ad-HOC networking system of claim 1, wherein said host is further configured to establish point-to-point communication with each node module on the same wireless communication frequency.
3. The Ad-HOC networking system of claim 2, wherein the host establishing point-to-point communication with the node module comprises:
and the host and the node module exchange and store addresses through two handshakes.
4. The Ad-HOC networking system of claim 1, wherein the Ad-HOC networking system further comprises:
the server is in wired communication or wireless communication with the host through an MQTT standard communication protocol;
and the terminal application program is in wired communication or wireless communication with the server through an MQTT standard communication protocol, and is used for sending a control command to the host through the server.
5. The Ad-HOC networking system of claim 1, wherein said node means comprises:
the first single chip microcomputer is used for acquiring data of the physical variables through the sensor unit;
the second single chip microcomputer is connected with the first single chip microcomputer and used for controlling the receiving and sending of the data of the physical variables, wherein a plurality of storage spaces of the physical variables are arranged in the second single chip microcomputer in a software configuration mode, the storage space of each physical variable is used for storing the type of the physical variable and the acquired data of the physical variable, and the storage space of each physical variable is configured with an index number;
and the transmission module is connected with the second singlechip and used for receiving the data of the physical variable sent by the second singlechip and sending the data of the physical variable, the index number of the storage space corresponding to the physical variable and the address information of the node module to the host, wherein the address information of the node module is set by the node module according to a network group number.
6. An Ad-HOC networking method, comprising:
after the node module is powered on, reading information in the memory; and
if the network group number information and the frequency hopping parameter information are read, the network group number and the wireless communication frequency of the node module are set according to the network group number information and the frequency hopping parameter information,
the network group number information and the frequency hopping parameter information are issued to the node module by the host computer in a wireless communication mode.
7. The Ad-HOC Ad-HOC networking method of claim 6, wherein the Ad-HOC Ad-HOC networking method further comprises:
if the node module does not read the network group number information and the frequency hopping parameter information, the node module keeps a receiving state;
when the network group number information and the frequency hopping parameter information are read, setting the network group number and the wireless communication frequency of the node module according to the network group number information and the frequency hopping parameter information; and
and the node module automatically restarts.
8. The Ad-HOC Ad-HOC networking method of claim 6, wherein the Ad-HOC Ad-HOC networking method further comprises:
if the node module reads the host binding information, the node module establishes point-to-point communication with the host in the host binding information,
the host binding information is issued to the node module by the host in a wireless communication mode, and the wireless communication frequency of the host in the host binding information is the same as that of the node module.
9. The Ad-HOC Ad-HOC networking method of claim 6, wherein the Ad-HOC Ad-HOC networking method further comprises:
if the node module does not read the host binding information, the node module keeps a receiving state;
after the host binding information is read, point-to-point communication is established with the host in the host binding information;
and the node module automatically restarts.
10. The Ad-HOC Ad-HOC networking method of claim 6, wherein the Ad-HOC Ad-HOC networking method further comprises:
a terminal application program sends a control command to the host through an MQTT standard communication protocol, wherein the control command is used for reading the physical variable of the node module;
the host generates a configuration file according to the control command and issues the configuration file to the node module in a wireless communication mode, wherein the configuration file comprises address information of the node module to be read and an index number of a physical variable;
after the node module reads the configuration file, reading the data of the physical variable according to the address information of the node module to be read and the index number of the physical variable;
the node module sends the data of the physical variable to the host;
and the host returns the data of the physical variable to the terminal application program.
CN202110174129.4A 2021-02-07 2021-02-07 Ad-HOC Ad HOC network system and method Pending CN112867036A (en)

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