CN110708381A - Intelligent garden explanation system based on ZigBee and control method - Google Patents

Intelligent garden explanation system based on ZigBee and control method Download PDF

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CN110708381A
CN110708381A CN201910966870.7A CN201910966870A CN110708381A CN 110708381 A CN110708381 A CN 110708381A CN 201910966870 A CN201910966870 A CN 201910966870A CN 110708381 A CN110708381 A CN 110708381A
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module
zigbee
plant
node
explanation
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CN110708381B (en
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郭洪飞
何智慧
张锐
曾云辉
屈挺
朝宝
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Jinan University
University of Jinan
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/10—Mapping addresses of different types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/681—Types of network addresses using addresses for wireless personal area networks or wireless sensor networks, e.g. Zigbee addresses

Abstract

The invention discloses an intelligent garden explanation system based on ZigBee and a control method thereof, wherein the explanation system is arranged on a plant label module, an intelligent explanation terminal, a wireless network module and a background control center, the background control center comprises a Beidou positioning module and a data processing SDK, the data processing SDK is in coupling connection with the Beidou positioning module through a serial port and is in wireless communication connection with a first Beidou positioning module of the wireless network module through the Beidou positioning module, the first Beidou positioning module is in coupling connection with a ZigBee module through the serial port, the ZigBee module is in wireless communication connection with a first ZigBee module of a coordinating node of the plant label module and a second ZigBee module of the intelligent explanation terminal, the second ZigBee module is also in wireless communication connection with a third ZigBee module of a reference node of the first ZigBee module and the plant label module, and the second ZigBee module is in coupling connection with an explanation unit through the serial port.

Description

Intelligent garden explanation system based on ZigBee and control method
Technical Field
The invention relates to the field of Internet of things, in particular to an intelligent garden explanation system based on ZigBee and a control method.
Background
Along with the rapid development of national economy, the living standard of people is continuously improved, scientific technology is gradually developed, the healthy and green living idea is deeply concentrated, people pay more attention to garden greening, but people often find that a lot of flowers, plants and trees are not seen, and the people are not named after the people see the flowers, plants and trees.
Based on this, the technology is applied to gardens and forests to build intelligent gardens, and each tree and each flower have own 'identity' and 'story', so that the intelligent garden has great value.
So far, many large-scale plant sightseeing scenic spots still adopt a manual mode, the mode needs high training cost, the level of manual tour guide is high or low, each visitor cannot be cared for in a standardized and individualized way, and disputes are even easy to occur. Navigation and positioning technology is an important link in a tour guide system, and high-quality service can be better provided for tourists only by positioning the specific position of the tourists or the handheld terminal.
However, there are limitations to current wireless network-based positioning and navigation techniques. The environmental situation is relatively complex, for example: in exhibition halls, museums, large warehouses and the like, the problems of wireless signal reflection, refraction, multipath propagation, non-line-of-sight propagation and the like can be caused by the internal structure, building materials, home seat arrangement and the like of a building in a large environment, so that the difficulty of the positioning technology is relatively high, and many methods are unfair at the position or the positioning accuracy is not high.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an intelligent garden explanation system and a control method based on ZigBee aiming at the defects in the prior art, wherein the explanation system utilizes the ZigBee technology to realize high-quality disputes about plants in real time when visiting gardens, and the introduction of artificial tour guide is omitted, so that the visiting has more interest and freedom.
According to a first aspect of the invention, an intelligent garden explanation system based on ZigBee is provided, which comprises a plant label module, an intelligent explanation terminal, a wireless network module and a background control center, wherein the plant label module, the intelligent explanation terminal, the wireless network module and the background control center are arranged on plants;
the background control center comprises a Beidou positioning module and a data processing SDK, the data processing SDK is in coupling connection with the Beidou positioning module through a serial port and is in wireless communication connection with a first Beidou positioning module of a wireless network module through the Beidou positioning module, the first Beidou positioning module is in coupling connection with a ZigBee module through a serial port, the ZigBee module is in wireless communication connection with a first ZigBee module of a coordinating node of the plant label module and a second ZigBee module of the intelligent explanation terminal, the second ZigBee module is also in wireless communication connection with the first ZigBee module and a third ZigBee module of a reference node of the plant label module, and the second ZigBee module is also in coupling connection with the explanation unit through a serial port; wherein the content of the first and second substances,
the intelligent explanation terminal is used for determining the positions of all reference nodes close to the intelligent explanation terminal through the cooperation of the second ZigBee module and the third ZigBee module of each reference node, sending the positions to the coordination node, and/or receiving and analyzing a plant information data packet of a target plant node which is sent by the wireless network module and processed by the background control center, and outputting and displaying the plant information data packet;
the coordination node is used for determining a target plant node based on the acquired positions of all the reference nodes and transmitting the target plant node to the background control center through the wireless network module;
and the data processing SDK user acquires the target plant node transmitted by the wireless network module, then acquires the plant information data packet corresponding to the target plant node from the pre-stored label database, and transmits the plant information data packet to the intelligent explanation terminal for analysis and display through the wireless network module.
As a further elaboration of the above technical solution:
in the above technical solution, the intelligent explanation terminal further comprises an explanation unit, the explanation unit comprises an ARM processor and a display unit, the ARM processor is provided with a tour guide APP and an explanation processing SDK, and is also electrically connected with a storage module for storing videos, audios, characters and pictures matched with garden plants, the ARM processor is used for processing the position data of the second ZigBee module and the position data of a third ZigBee module close to all reference nodes of the intelligent explanation terminal and sending the position data to the coordination node through the first ZigBee module, and/or analyzing the plant information data packet of the target plant node sent by the wireless network module and processed by the background control center and then outputting the plant information data packet to the display unit, the display unit is used for displaying the position information positioned by the second ZigBee module, the position information of the target plant node and the plant information of the target plant node.
In the above technical solution, the ARM processor is an ARM processor of STM32F103 type; the ZigBee module, the first ZigBee module, the second ZigBee module and the third ZigBee module are wireless ZigBee positioning modules of ARMSKY-CC2431EM model; the Beidou positioning module and the first Beidou positioning module are SKG09D modules.
Compared with the prior art, the intelligent explanation system has the advantages that the intelligent explanation system is suitable for garden exhibition halls and consists of a plant label, a background control center, a wireless network module and an intelligent explanation terminal; when the intelligent explanation terminal works, tourists can carry out garden tour by holding an intelligent explanation terminal provided by a garden, when the tourists enter a communication range of a third ZigBee module of a reference node in a plant label, the second ZigBee module of the intelligent explanation terminal can receive a positioning request sent by the reference node, as the tourists can be located in the communication range of more than one reference node at the same time, a coordination node determines the position of a plant closest to the tourists through an optimization algorithm and transmits the position of the plant to a wireless network module through the third ZigBee module, the wireless network module transmits the determined position of the plant to a background control center through a Beidou positioning module, the Beidou positioning module interacts the received data with data processing SDK and then transmits the plant number and personalized service information to the intelligent explanation terminal, and positioning information display and plant information playing back and back are realized on an explanation unit of the intelligent explanation terminal, Plant inquiry, people flow rate examination and other functions; through adopting the handheld intelligent explanation terminal of visitor to visit gardens, obtain in real time about the high-quality dispute of plant, saved the introduction of artifical guide for visit more have interest and freedom.
According to another aspect of the present invention, the present invention provides a control method of a ZigBee-based intelligent garden explanation system, the control method including the ZigBee-based intelligent garden explanation system according to the first aspect of the present invention, further including the steps of:
step A, an interpreter holds an intelligent explanation terminal to move in a garden, and a second ZigBee module of the intelligent explanation terminal detects and receives reference label information of a plurality of reference nodes close to the intelligent explanation terminal, which is sent by a first ZigBee module in real time, and sends the reference label information to a coordination node through a third ZigBee module; the reference tag information comprises a MAC address of each first ZigBee module and matched signal transmission strength RSST;
b, the coordinator node processes the received plurality of reference label information based on a boundary box node positioning algorithm, determines target plant nodes and target plant label information, and sends the target plant nodes and the target plant label information to the wireless network module through a third ZigBee module and a ZigBee module, wherein the target plant nodes are reference nodes closest to the intelligent explanation terminal, and the target plant label information is reference label information of the target plant nodes;
c, the wireless network module transmits the target plant label information to a background control center through a Beidou positioning module;
d, the background control center analyzes the target plant label information by using the data processing SDK and obtains a plant information data packet corresponding to the target plant node from a pre-stored label database, and then the plant information data packet is transmitted back to the wireless network module through the first Beidou positioning module, wherein the plant information data packet comprises the serial number of the target plant, and the text, audio and video explanation information of the plant attribute of the target plant;
and E, the wireless network module transmits the plant information data packet to an intelligent explanation terminal through a ZigBee module and a second ZigBee module, and an explanation unit of the intelligent explanation terminal analyzes the plant information data packet and outputs the analyzed plant information to a display unit for explanation and display.
As a further elaboration of the above technical solution:
in the above technical solution, in step a, the second ZigBee module detects and receives reference label information of at least three reference nodes close to the intelligent explanation terminal, which is sent by the first ZigBee module, in real time, and after the intelligent explanation terminal receives the reference label information of the plurality of reference nodes, the MAC address MAC of the second ZigBee module is usedAAnd transmitting the plurality of reference label information to the coordinating node.
In the above technical solution, the processing, by the coordinator node, the received pieces of reference label information and determining the target plant node and the target plant label information based on the bounding box node location algorithm includes:
step i, the coordination node judges the signal emission strength RSST of the reference node and selects the minimum signal emission strength RSSTmReference node d of (2);
step ii, the coordination node calculates the distance D between the reference nodes D and the intelligent lecture terminal by using the following formulad：
Figure BDA0002230763900000041
Wherein n represents a path loss exponent, n is a constant of 3.0-3.5, and A represents a distance D in an experimental environment0Two Zigbee nodes of (3) transmit signal strength RSST, D of the signal0＝1m，A＝-25dbBm
Step iii at DdLess than a distance threshold DMThen, the coordination node determines that the reference node d is a target plant node, and the matched MAC address MAC of the first ZigBee moduledAnd matched signal emission strength RSSTmDetermining as target plant label information, distance threshold DMSet to 2 m.
In the above technical solution, after the coordinating node determines the target plant label information, the MAC address MAC of the second ZigBee module is usedAAnd the target plant label information passes through a third ZigBee module and a ZigBee moduleThe block is transmitted to a wireless network module; the wireless network module receives the MAC address MAC of the second ZigBee moduleAAfter the target plant label information is added, the wireless network IP address is also IPFMAC address MACAAnd target plant label information is sent to the background control center through the Beidou positioning module and the first Beidou positioning module.
In the above technical solution, the step D includes:
step a, the background control center analyzes the MAC address MAC of the intelligent explanation terminalAMAC address MAC of target plant nodedAnd wireless network IP address IPF；
Step b, data SDK is based on MAC address MAC of target plant nodedObtaining plant information data packet from pre-stored label database and/or IP address based on wireless networkFIdentifying a matched wireless network module;
step c, the background control center carries out MAC addressAAnd the plant information data packet is transmitted to a wireless network IP address through the first Beidou positioning module and the Beidou positioning module to form an IPFThe wireless network module.
In the above technical solution, the step E includes:
d, wireless network module analyzes MAC address MACAAnd transmitting the plant information data packet to the MAC with the matched MAC address through the ZigBee module and the second ZigBee moduleAThe intelligent explanation terminal;
and e, analyzing the plant information data packet by the explaining unit and outputting the analyzed plant information to the display unit for explaining and displaying.
Drawings
FIG. 1 is a schematic block diagram of an intelligent garden explanation system of the present invention;
fig. 2 is a flowchart of a control method of the intelligent garden explanation system of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Before describing the specific embodiment of the present invention, the related technology involved in the present application is described, ZigBee, also called ZigBee, is a wireless network protocol for low-speed short-distance transmission, and the bottom layer is a medium access layer and a physical layer that adopt ieee802.15.4 standard specifications, compared with several short-distance wireless communication technologies: wireless local area network, ultra wide band communication, near field communication, bluetooth, infrared ray data communication have obvious advantage: the wireless network technology has the advantages of low speed, low power consumption, low cost, support of a large number of nodes on the network, support of various topologies on the network, low complexity, rapidness, reliability and safety, and is a new short-distance and low-speed wireless network technology. It is a technical proposal between wireless identification technology and bluetooth, has its own radio standard, and communicates by coordinating thousands of sensors, and although these sensors require little energy, they relay data from one sensor to another by radio waves, so the efficiency of communication between them is very high. Therefore, the intelligent garden education system based on Zigbee positioning for the project research has scientific significance and practical value.
Android development refers to the production of applications on an Android platform, Android is created by Andy Rubin called as "Android father" in the early period, Google purchases high-tech enterprise Android which is established for only 22 months in 2005, services such as short message service, mobile phone retrieval and positioning are developed, and a Linux-based general platform is developed. The knowledge system needed to be mastered in software development comprises: Unix/Linux platform technology, enterprise-level database technology, Java language core technology, software engineering and design mode, Android application development foundation, Internet core technology, Android system level development and JavaEE core technology
SDK (Software Development Kit), refers to a collection of Development tools used by a Software engineer to build application Software for a particular Software package, Software framework, hardware platform, operating system, etc.
Example 1
The invention provides an intelligent garden explanation system based on ZigBee, which is characterized in that an attached figure 1 is a schematic block diagram of the intelligent garden explanation system based on ZigBee according to the embodiment of the invention, referring to the attached figure 1, the intelligent garden explanation system based on ZigBee of the embodiment comprises a plant label module 001 arranged on a plant, an intelligent explanation terminal 002, a wireless network module 003 and a background control center 004, wherein in practice, the plant label module 001 comprises a reference node 005 (fixed node) for selecting a target plant node and a coordinating node 006 (mobile node and blind node) for processing the reference node 005 to calculate the target plant node nearest to the intelligent explanation terminal 002; the background control center 004 comprises a Beidou positioning module 41 and a data processing SDK 42, the data processing SDK 42 and the Beidou positioning module 41 are in coupling connection through serial ports and interactively transmit data, the background control center 004 is also in wireless communication connection with a first Beidou positioning module 31 of a wireless network module 003 through the Beidou positioning module 41, the first Beidou positioning module 31 is in coupling connection with a ZigBee module 32 through serial ports, the ZigBee module 32 is in wireless communication connection with a first ZigBee module 61 of a coordinating node 006 of a plant label module 001 and a second ZigBee module 21 of an intelligent explaining terminal 002, the second ZigBee module 21 is also in wireless communication connection with the first ZigBee module 61 and a third ZigBee module 51 of a reference node 005 of the plant label module 001, and the second ZigBee module 21 is also in coupling connection with an explaining unit 22 through serial ports; wherein the content of the first and second substances,
intelligence explanation terminal 002 is used for confirming through the third zigBee module 51 of second zigBee module 21 cooperation each reference node 005 and is close to the position of all reference nodes 005 of intelligence explanation terminal 002 and sends to position to coordination node 006, and/or receive and analyze the plant information data package of the target plant node that wireless network module 003 sent through backstage control center 004 processing and output display, intelligence explanation terminal 002 still includes explanation unit 22, explanation unit 22 includes ARM treater 221 and display element 222, ARM treater 221 is equipped with guide APP and explanation processing SDK, ARM treater 221 still with deposit the video of matching landscape plant, audio frequency, characters and picture storage module 223 electricity is connected, ARM treater 221 is used for handling the position data of second zigBee module 21 and is close to the position data of the third zigBee module 51 of all reference nodes 005 of intelligence explanation terminal 002 send to coordination node through first zigBee module 61 006, and/or outputting the plant information data packet of the target plant node processed by the background control center 004 and sent by the wireless network module 003 to the display unit 222, wherein the display unit 222 is configured to display the position information located by the second ZigBee module 21, the position information of the target plant node, and the plant information of the target plant node for display;
the coordinating node 006 is configured to determine a target plant node based on the acquired positions of all the reference nodes 005 and transmit the target plant node to the background control center 004 through the wireless network module 003;
after acquiring the target plant node transmitted by the wireless network module 003, the data processing SDK 42 user acquires a plant information data packet corresponding to the target plant node from the pre-stored label database (storing information matched with all plants in a garden), and transmits the plant information data packet to the intelligent explanation terminal 002 through the wireless network module 003 for analysis and display.
In this embodiment, the ARM processor 221 is an ARM processor of an STM32F103 model; the ZigBee module 32, the first ZigBee module 61, the second ZigBee module 21 and the third ZigBee module 51 are wireless ZigBee locating modules with ARMSKY-CC2431EM models; the Beidou positioning module 41 and the first Beidou positioning module 31 are both SKG09D modules.
Example 2
The invention provides a control method of an intelligent garden explanation system based on ZigBee, and figure 2 is a flow chart of the control method of the intelligent garden explanation system based on ZigBee, and the method comprises the following steps:
s01, holding the intelligent explanation terminal to move in the garden by an interpreter, detecting and receiving reference label information of a plurality of reference nodes close to the intelligent explanation terminal, which is sent by a first ZigBee module, in real time through a second ZigBee module of the intelligent explanation terminal, and sending the reference label information to a coordination node through a third ZigBee module; the reference tag information comprises a MAC address of each first ZigBee module and matched signal transmission strength RSST;
s02, the coordinator node processes the received plurality of reference label information based on a boundary box node positioning algorithm, determines target plant nodes and target plant label information, and sends the target plant nodes and the target plant label information to the wireless network module through a third ZigBee module and a ZigBee module, wherein the target plant nodes are reference nodes closest to the intelligent explanation terminal, and the target plant label information is reference label information of the target plant nodes;
s03, the wireless network module transmits the target plant label information to a background control center through a Beidou positioning module;
s04, the background control center analyzes the target plant label information by using a data processing SDK and obtains a plant information data packet corresponding to a target plant node from a pre-stored label database, and then the plant information data packet is transmitted back to the wireless network module through a first Beidou positioning module, wherein the plant information data packet comprises the serial number of the target plant, and the text, audio and video explanation information of the plant attribute of the target plant;
and S05, the wireless network module transmits the plant information data packet to an intelligent explanation terminal through a ZigBee module and a second ZigBee module, and an explanation unit of the intelligent explanation terminal analyzes the plant information data packet and outputs the analyzed plant information to a display unit for explanation and display.
In this embodiment, in step S01, the second ZigBee module detects and receives, in real time, reference tag information of at least three reference nodes close to the intelligent explanation terminal, which is sent by the first ZigBee module, and after the intelligent explanation terminal receives the reference tag information of the plurality of reference nodes, the MAC address MAC of the second ZigBee module is usedAAnd transmitting the plurality of reference label information to the coordinating node.
In this embodiment, in step S02, the processing, by the coordinator node, the received pieces of reference label information and determining the target plant node and the target plant label information based on the bounding box node location algorithm includes:
step S2-1, the coordination node judges the signal emission intensity RSST of the reference node and selects the minimum signal emission intensity RSSTmReference node d of (2);
step S2-2, the coordinating node calculates the distance between the reference nodes d by the following formulaDistance D of terminald：
Figure BDA0002230763900000071
Wherein n represents a path loss exponent, n is a constant of 3.0-3.5, and A represents a distance D in an experimental environment0Two Zigbee nodes of (3) transmit signal strength RSST, D of the signal0＝1m，A＝-25dbBm
Step S2-3, at DdLess than a distance threshold DMThen, the coordination node determines that the reference node d is a target plant node, and the matched MAC address MAC of the first ZigBee moduledAnd matched signal emission strength RSSTmDetermining as target plant label information, distance threshold DMSet to 2 m.
In this embodiment, in step S02, after the coordinating node determines the target plant label information, the MAC address MAC of the second ZigBee module is usedAThe target plant label information is transmitted to the wireless network module through the third ZigBee module and the ZigBee module; in this embodiment, in step S03, the wireless network module receives the MAC address MAC of the second ZigBee moduleAAfter the target plant label information is added, the wireless network IP address is also IPFMAC address MACAAnd target plant label information is sent to the background control center through the Beidou positioning module and the first Beidou positioning module.
In the present embodiment, step S04 includes:
step S4-1, the background control center analyzes the MAC address MAC of the intelligent explanation terminalAMAC address MAC of target plant nodedAnd wireless network IP address IPF；
Step S4-2, the data SDK is based on the MAC address MAC of the target plant nodedObtaining plant information data packet from pre-stored label database and/or IP address based on wireless networkFIdentifying a matched wireless network module;
step S4-3, the background control center carries out MAC address MACAThe plant information data packet is positioned through the first Beidou positioning module and the BeidouModule transmits IP address to wireless network as IPFThe wireless network module.
In the present embodiment, step S05 includes:
step S5-1, the wireless network module will resolve the MAC address MACAAnd transmitting the plant information data packet to the MAC with the matched MAC address through the ZigBee module and the second ZigBee moduleAThe intelligent explanation terminal;
and S5-2, the explaining unit analyzes the plant information data packet and outputs the analyzed plant information to the display unit for explaining and displaying.
The control method of the embodiment is described below by using a specific example, specifically, a represents an intelligent explanation terminal, B, C, D three reference nodes represent three plant labels corresponding to three plants near the intelligent explanation terminal a, E represents a coordination node, and F represents a wireless network module; intelligent garden explanation system during operation:
when the intelligent explanation terminal A moves in a garden, Zigbee signals sent by nearby plant labels B, C and D can be received, and the signals comprise unique physical MAC address MAC corresponding to B, C, DA、MACB、MACDAnd corresponding RSSI Signal Strength RSSIB、RSSIC、RSSID；
After receiving the Zigbee signal sent by the plant label B, C, D, the intelligent explanation terminal a adds its own MAC address information MACAAnd sends this information to the coordination node E
After receiving the Zigbee signal sent by the intelligent explanation terminal a, the coordinating node E sends an RSSI signal to the coordinating node EB、RSSIC、RSSIDAnalyzing, determining the size, and taking out the minimum value such as RSSIBAccording to the formula
Figure BDA0002230763900000091
Calculating the distance between the plant label B and the intelligent explanation terminal A, wherein n represents a path loss index and generally takes a value of 3.5 in the garden, and A represents that the distance is D in the experimental environment0Signal strength of two Zigbee nodes transmission signalRSST, in general D01m, A-25 dbBm. When D is presentBWhen the distance is more than two meters, the coordination node does not perform any next operation; when D is presentBWhen the distance is less than two meters, the coordination node will intelligently explain the MAC address MAC of the terminal A and the plant labelA、MACBAnd sending the data to a wireless network module F.
After receiving the Zigbee signal transmitted by the coordinating node, the wireless network module F adds the IP address information of the wireless network module FFAnd the Beidou satellite-based Beidou satellite transmission system is packaged and summoned to be a Beidou signal and transmitted to a rear-end control center through a Beidou satellite.
After receiving the Beidou signal sent by the wireless network module F, the back-end control center analyzes the address of the intelligent explanation terminal A and the plant label address MACA、MACBFinding out the detailed information corresponding to the plant label B through data processing SDK, and searching through IPFIdentifying a wireless network module F, and corresponding information and MAC corresponding to the plant label BAPackaging and sending the data to a wireless network module F;
after receiving the Beidou signal sent by the background control center, the wireless network module F analyzes the MACATransmitting corresponding information corresponding to the plant label B to the intelligent explanation terminal A in a Zigbee signal mode;
after the intelligent explanation terminal A receives the Zigbee signals of the wireless network module F, the data packet is analyzed by the explanation unit, and the plant information is displayed in the modes of characters, pictures and videos.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (9)

1. The intelligent garden explanation system based on ZigBee is characterized by comprising a plant label module, an intelligent explanation terminal, a wireless network module and a background control center, wherein the plant label module, the intelligent explanation terminal, the wireless network module and the background control center are arranged on plants;
the background control center comprises a Beidou positioning module and a data processing SDK, the data processing SDK is in coupling connection with the Beidou positioning module through a serial port and is in wireless communication connection with a first Beidou positioning module of a wireless network module through the Beidou positioning module, the first Beidou positioning module is in coupling connection with a ZigBee module through a serial port, the ZigBee module is in wireless communication connection with a first ZigBee module of a coordinating node of the plant label module and a second ZigBee module of the intelligent explanation terminal, the second ZigBee module is also in wireless communication connection with the first ZigBee module and a third ZigBee module of a reference node of the plant label module, and the second ZigBee module is also in coupling connection with the explanation unit through a serial port; wherein the content of the first and second substances,
the intelligent explanation terminal is used for determining the positions of all reference nodes close to the intelligent explanation terminal through the cooperation of the second ZigBee module and the third ZigBee module of each reference node, sending the positions to the coordination node, and/or receiving and analyzing a plant information data packet of a target plant node which is sent by the wireless network module and processed by the background control center, and outputting and displaying the plant information data packet;
the coordination node is used for determining a target plant node based on the acquired positions of all the reference nodes and transmitting the target plant node to the background control center through the wireless network module;
and the data processing SDK user acquires the target plant node transmitted by the wireless network module, then acquires the plant information data packet corresponding to the target plant node from the pre-stored label database, and transmits the plant information data packet to the intelligent explanation terminal for analysis and display through the wireless network module.
2. The intelligent garden explanation system based on zigBee of claim 1, characterized in that, intelligence explanation terminal still includes the explanation unit, the explanation unit includes ARM treater and display element, the ARM treater is equipped with guide APP and explanation processing SDK, the ARM treater still with deposit the storage module electricity that matches garden plant's video, audio frequency, characters and picture and be connected, the ARM treater is used for handling the position data of second zigBee module and is close to the position data of the third zigBee module of all reference nodes of intelligence explanation terminal and sends to coordination node through first zigBee module, and/or exports to the display element after analyzing the plant information data package of the target plant node that wireless network module sent and handled through backstage control center, the display element is used for showing the position information, the position information of second zigBee module location, And playing and displaying the position information of the target plant node and the plant information of the target plant node.
3. The intelligent garden explanation system based on zigBee of claim 2, characterized in that the ARM processor is an ARM processor of model STM32F 103; the ZigBee module, the first ZigBee module, the second ZigBee module and the third ZigBee module are wireless ZigBee positioning modules of ARMSKY-CC2431EM model; the Beidou positioning module and the first Beidou positioning module are SKG09D modules.
4. The control method of the intelligent garden explanation system based on ZigBee is characterized by comprising the intelligent garden explanation system based on ZigBee of claim 3, and further comprising the following steps:
step A, an interpreter holds an intelligent explanation terminal to move in a garden, and a second ZigBee module of the intelligent explanation terminal detects and receives reference label information of a plurality of reference nodes close to the intelligent explanation terminal, which is sent by a first ZigBee module in real time, and sends the reference label information to a coordination node through a third ZigBee module; the reference tag information comprises a MAC address of each first ZigBee module and matched signal transmission strength RSST;
b, the coordinator node processes the received plurality of reference label information based on a boundary box node positioning algorithm, determines target plant nodes and target plant label information, and sends the target plant nodes and the target plant label information to the wireless network module through a third ZigBee module and a ZigBee module, wherein the target plant nodes are reference nodes closest to the intelligent explanation terminal, and the target plant label information is reference label information of the target plant nodes;
c, the wireless network module transmits the target plant label information to a background control center through a Beidou positioning module;
d, the background control center analyzes the target plant label information by using the data processing SDK and obtains a plant information data packet corresponding to the target plant node from a pre-stored label database, and then the plant information data packet is transmitted back to the wireless network module through the first Beidou positioning module, wherein the plant information data packet comprises the serial number of the target plant, and the text, audio and video explanation information of the plant attribute of the target plant;
and E, the wireless network module transmits the plant information data packet to an intelligent explanation terminal through a ZigBee module and a second ZigBee module, and an explanation unit of the intelligent explanation terminal analyzes the plant information data packet and outputs the analyzed plant information to a display unit for explanation and display.
5. The method for controlling a ZigBee-based intelligent garden explanation system according to claim 4, wherein in the step A, the second ZigBee module detects and receives reference label information of at least three reference nodes close to the intelligent explanation terminal, which is sent by the first ZigBee module, in real time, and the intelligent explanation terminal receives the reference label information of the plurality of reference nodes, and then, after the MAC address MAC of the second ZigBee module is receivedAAnd transmitting the plurality of reference label information to the coordinating node.
6. The method for controlling a ZigBee-based intelligent garden explanation system according to claim 5, wherein the coordinator node processes the received reference label information based on a bounding box node location algorithm and determines the target plant node and the target plant label information comprises:
step i, the coordination node judges the signal emission strength RSST of the reference node and selects the minimum signal emission strength RSSTmReference node d of (2);
step ii, the coordination node calculates the distance D between the reference nodes D and the intelligent lecture terminal by using the following formulad：
Figure FDA0002230763890000021
Wherein n represents a path loss exponent, n is a constant of 3.0-3.5, and A represents a distance D in an experimental environment0Two of (2)Signal strength RSST, D of signal transmitted by Zigbee node0＝1m，A＝-25dbBm
Step iii at DdLess than a distance threshold DMThen, the coordination node determines that the reference node d is a target plant node, and the matched MAC address MAC of the first ZigBee moduledAnd matched signal emission strength RSSTmDetermining as target plant label information, distance threshold DMSet to 2 m.
7. The ZigBee-based intelligent garden explanation system control method of claim 6, wherein the coordination node determines the target plant label information and then sends the MAC address MAC of the second ZigBee moduleAThe target plant label information is transmitted to the wireless network module through the third ZigBee module and the ZigBee module; the wireless network module receives the MAC address MAC of the second ZigBee moduleAAfter the target plant label information is added, the wireless network IP address is also IPFMAC address MACAAnd target plant label information is sent to the background control center through the Beidou positioning module and the first Beidou positioning module.
8. The ZigBee-based intelligent garden explanation system control method of claim 7, wherein the step D comprises:
step a, the background control center analyzes the MAC address MAC of the intelligent explanation terminalAMAC address MAC of target plant nodedAnd wireless network IP address IPF；
Step b, data SDK is based on MAC address MAC of target plant nodedObtaining plant information data packet from pre-stored label database and/or IP address based on wireless networkFIdentifying a matched wireless network module;
step c, the background control center carries out MAC addressAAnd the plant information data packet is transmitted to a wireless network IP address through the first Beidou positioning module and the Beidou positioning module to form an IPFThe wireless network module.
9. The ZigBee-based intelligent garden explanation system control method according to claim 8, wherein the step E comprises:
d, wireless network module analyzes MAC address MACAAnd transmitting the plant information data packet to the MAC with the matched MAC address through the ZigBee module and the second ZigBee moduleAThe intelligent explanation terminal;
and e, analyzing the plant information data packet by the explaining unit and outputting the analyzed plant information to the display unit for explaining and displaying.
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