CN117915497A - Internet of things information transmission system and method based on optical fiber and Mesh ad hoc network - Google Patents
Internet of things information transmission system and method based on optical fiber and Mesh ad hoc network Download PDFInfo
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- H—ELECTRICITY
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- H04B10/25752—Optical arrangements for wireless networks
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Abstract
The invention relates to the technical field of information transmission, in particular to an Internet of things information transmission system based on an optical fiber and Mesh ad hoc network, which comprises the following components: the self-networking module is used for constructing a Mesh network optical fiber communication module and an optical fiber communication module, and is used for transmitting information and downloading information collected by each Mesh Internet of things node; the control module is used for determining corresponding signal transmitting power of the Mesh internet-of-things node according to variance of transmission rates among the adjacent Mesh internet-of-things nodes, or determining a first working mode of the relay communication assembly according to the transmission rates among the adjacent Mesh internet-of-things nodes and average signal intensity of the Mesh internet-of-things node, and determining a second working mode of the relay communication assembly according to average signal intensity of the Mesh internet-of-things node and corresponding transmitting mode of signal attenuation average amplitude adjustment information of Mesh internet-of-things network signals and according to average electricity consumption rate of the Mesh internet-of-things nodes. The invention realizes the improvement of the stability of the wireless network.
Description
Technical Field
The invention relates to the technical field of information transmission, in particular to an Internet of things information transmission system and method based on an optical fiber and Mesh ad hoc network.
Background
The Internet of things information transmission system based on the optical fiber and Mesh ad hoc network is an innovative and practical communication solution. The method combines the advantages of optical fiber communication and Mesh ad hoc network, and provides strong and flexible communication support for the application of the Internet of things. The optical fiber communication has remarkable advantages in the field of data transmission due to the characteristics of high speed, large bandwidth, low loss, strong anti-interference performance and the like. The optical fiber network can ensure the stability and accuracy of a large amount of data in the transmission process.
Chinese patent publication No.: CN116016451a discloses a multicast transmission method of Mesh network, comprising: any network Mesh Internet of things node in the Mesh network receives an ELP protocol packet sent by a neighbor Mesh Internet of things node of the Mesh network; when the ELP protocol packet contains neighbor information of a neighbor Mesh Internet of things node of the Mesh Internet of things node, the neighbor information of the Mesh Internet of things node is updated by the Mesh Internet of things node, and a network topology within two hops is built; the Mesh internet of things node calculates a multi-point relay set of the Mesh internet of things node; the Mesh internet of things node broadcasts the own neighbor information and the multipoint relay set to the Mesh network through an ELP protocol packet; constructing a forwarding decision table by each neighbor Mesh-connected node of the network Mesh-connected node; after receiving multicast data from network Mesh things node, neighbor Mesh things node determines whether multicast data needs to be forwarded or not, and forwards the multicast data when forwarding is needed. Therefore, the multicast data transmission effect is ensured, and meanwhile, the forwarding times of the multicast data in the Mesh network are reduced, so that the consumption of the multicast service on the network bandwidth is reduced, and the bandwidth utilization rate of the Mesh network is improved. Therefore, the multicast transmission method of the Mesh network has the problems that the stability of the wireless network is insufficient due to the increase of signal attenuation caused by the condition that the electric quantity of the internet of things node is limited and the service life of the optical fiber is too long.
Disclosure of Invention
The invention aims to provide an Internet of things information transmission system and method based on an optical fiber and Mesh ad hoc network, which are used for solving the problem that in the prior art, the stability of a wireless network is insufficient due to the increase of signal attenuation caused by the limited electric quantity of an Internet of things node and the overlong service life of the optical fiber.
In order to achieve the above object, the present invention provides an internet of things information transmission system based on an optical fiber and Mesh ad hoc network, comprising: the self-networking module is used for constructing a Mesh network and comprises a plurality of Mesh internet-of-things nodes for detecting corresponding internet-of-things information, and for a single Mesh internet-of-things node, the self-networking module comprises a relay communication component for relaying and communicating the Mesh internet-of-things nodes and a signal conversion component connected with the relay communication component for converting optical signals into electric signals; the optical fiber communication module is connected with the self-networking module and used for transmitting information and downloading information collected by each Mesh Internet of things node, and comprises a main router connected with the Mesh Internet of things node and used for forwarding the downloading information; the control module is respectively connected with the ad hoc network module and the optical fiber communication module, and is used for determining corresponding signal transmitting power of the Mesh internet-of-things node according to variance of transmission rates among a plurality of adjacent Mesh internet-of-things nodes, or determining a first working mode of the relay communication component according to the transmission rates among the plurality of adjacent Mesh internet-of-things nodes and average signal intensity of the Mesh internet-of-things node, and determining a second working mode of the relay communication component according to average signal intensity of the Mesh internet-of-things node and signal attenuation average amplitude adjustment information of Mesh internet-of-things node, and determining relay communication quantity of the Mesh internet-of-things node in the first working mode of the relay communication component to be larger than that of the Mesh internet-of-things node in the second working mode.
Further, the relay communication assembly includes:
a wireless transceiver to transmit and receive signals;
A signal processor, coupled to the wireless transceiver, for demodulating and decoding the received signal;
and the power supply is respectively connected with the wireless transceiver and the signal processor and is used for supplying power to the wireless transceiver and the signal processor.
Further, the control module obtains the transmission rate between a plurality of adjacent Mesh-type Internet of things nodes, calculates the variance of the transmission rate between a plurality of adjacent Mesh-type Internet of things nodes according to the transmission rate between the plurality of adjacent Mesh-type Internet of things nodes,
The control module determines that the stability of the wireless network is not satisfactory under a first differential condition, wherein,
The control module controls the Mesh Internet of things node to transmit the Mesh Internet of things node signal with corresponding signal transmitting power under the second variance condition;
The first variance condition is that the variance of the transmission rate between a plurality of adjacent Mesh-based internet-of-things nodes is larger than a preset first variance; the second variance condition is that the variance of the transmission rate between the plurality of adjacent Mesh-based internet-of-things nodes is larger than a preset second variance; the preset first variance is smaller than the preset second variance.
Further, the corresponding signal transmitting power is determined by the difference value between the variance of the transmission rate between the plurality of adjacent Mesh-based nodes and the preset second variance.
Further, the control module preliminarily judges that the stability of information transmission is not in accordance with the requirement under the condition of a third party difference, and obtains the signal intensities of a plurality of Mesh Internet of things nodes to calculate the average signal intensity of the Mesh Internet of things nodes,
The control module secondarily determines that the stability of the information transmission is not satisfactory under the first intensity condition, wherein,
The control module controls the relay communication assembly to communicate the Mesh commodity connection node according to a first working mode under a second intensity condition;
The third variance condition is that the variance of the transmission rate between the plurality of adjacent Mesh-based nodes is larger than the preset first variance and smaller than or equal to the preset second variance; the first strength condition is that the average signal strength of the Mesh Internet of things node is smaller than or equal to the preset second signal strength; the second strength condition is that the average signal strength of the Mesh Internet of things node is smaller than or equal to the preset first signal strength; wherein the preset first signal strength is smaller than the preset second signal strength.
Further, the first working mode of the relay communication assembly is that Mesh internet of things nodes are communicated in a first corresponding relay communication quantity, and the first corresponding relay communication quantity is determined through a difference value between the preset first signal intensity and the average signal intensity of the Mesh internet of things nodes.
Further, the control module preliminarily judges that the network signal diffusion effectiveness of the Mesh Internet of things node is not in accordance with the requirement under the third intensity condition, and obtains the signal attenuation amplitudes of the network signals of a plurality of Mesh Internet of things nodes to calculate the average signal attenuation amplitude of the network signals of the Mesh Internet of things node,
The control module secondarily judges that the network signal diffusion effectiveness of the Mesh Internet of things node is not in accordance with the requirement when the average amplitude of the signal attenuation of the network signals of the Mesh Internet of things nodes is larger than the preset average amplitude, and controls an information sending node in the Mesh Internet of things node to send information to be sent according to the corresponding sending mode of the information;
the third strength condition is that the average signal strength of the Mesh internet of things node is greater than the preset first signal strength and less than or equal to the preset second signal strength.
Further, the corresponding transmission mode of the information is that the transmission mode of the information from the information sending node to the target node is adjusted from single-line continuous transmission to multi-line transmission.
Further, the control module obtains the electricity consumption rate of the plurality of Mesh Internet of things nodes under the preset first condition to calculate the average electricity consumption rate of the plurality of Mesh Internet of things nodes,
The control module judges that the real-time performance of information transmission does not meet the requirement under the condition of a preset consumption rate, and controls the relay communication assembly to communicate the Mesh commodity connection nodes according to the second corresponding relay communication quantity;
The method comprises the steps that a first condition is preset, namely the control module completes communication of Mesh Internet of things nodes with the first corresponding relay communication quantity; the preset consumption rate condition is that the average consumption rate of the electric quantity of the plurality of Mesh Internet of things nodes is smaller than the preset consumption rate; and the second corresponding relay communication quantity is determined through the difference value between the preset consumption rate and the electric quantity average consumption rate of the plurality of Mesh Internet of things nodes.
The invention also provides an Internet of things information transmission method based on the optical fiber and Mesh ad hoc network, which comprises the following steps:
starting a main router, configuring the main router into a wired relay mode, and sequentially carrying out relay communication on a plurality of Mesh internet of things nodes to complete Mesh network construction;
The Mesh network is accessed into an optical fiber to transmit information and downloading information collected by each Mesh Internet of things node;
Acquiring transmission rates among a plurality of adjacent Mesh commodity connection nodes;
determining corresponding signal transmitting power of the Mesh internet-of-things node based on variances of data transmission rates among the plurality of adjacent Mesh internet-of-things nodes, or acquiring signal strengths of the plurality of Mesh internet-of-things nodes;
Determining a first working mode of a relay communication assembly based on the data transmission rate between adjacent Mesh internet-of-things nodes and the average signal intensity of the Mesh internet-of-things nodes, or determining a corresponding transmission mode of signal attenuation average amplitude adjustment information based on the average signal intensity of the Mesh internet-of-things nodes and the network signals of a plurality of Mesh internet-of-things nodes;
And acquiring the average electricity consumption rate of the plurality of Mesh Internet of things nodes after the Mesh Internet of things nodes are communicated with the first corresponding relay communication quantity, and controlling the relay communication component to communicate the Mesh Internet of things nodes according to the second corresponding relay communication quantity.
Compared with the prior art, the transmission system has the beneficial effects that by arranging the optical fiber communication module, the ad hoc network module, the Internet of things interaction module and the control module and determining the corresponding signal transmitting power of the Mesh Internet of things node according to the variance of the transmission rate between adjacent Mesh Internet of things nodes, the problem that the stability of a wireless network is reduced because the memory of the Mesh Internet of things node is limited in the process of transmitting information from the last Mesh Internet of things node to the next Mesh Internet of things node, part of operation memory is occupied by the process of information receiving and forwarding, and part of memory is occupied by the information uploading and information searching of the Internet of things equipment is also caused by the fact that the stability of the wireless network is reduced is solved; the first working mode of the relay communication assembly is determined through the average signal intensity of the Mesh Internet of things node, so that the influence of the reduction of the stability of information transmission caused by the fluctuation of the network of each Mesh Internet of things node due to the fact that the service life of the optical fiber is too long and the broadband and signal attenuation of the optical fiber transmission are increased is reduced; the corresponding sending mode of the information is determined through the average amplitude of the signal attenuation of the network signals of the Mesh Internet of things nodes, so that the influence of the reduction of the effectiveness of network signal diffusion of the main router caused by the fact that a part of electric quantity of the Mesh Internet of things nodes is used for establishing signal connection due to the fact that the Mesh Internet of things nodes through which the information to be forwarded passes is excessive is reduced, and the stability of the wireless network is further improved.
Further, the transmission system of the invention sets the preset first variance and the preset second variance, and determines the corresponding signal transmitting power of the Mesh internet-of-things node according to the variance of the transmission rate between the adjacent Mesh internet-of-things nodes, so that the problem that the memory of the Mesh internet-of-things node is limited in the process of transmitting information from the last Mesh internet-of-things node to the next Mesh internet-of-things node, the process of receiving and forwarding the information occupies part of the running memory, the process of uploading the information of the internet-of-things equipment and the process of searching the information also occupy part of the memory is solved, the influence of the stability of the wireless network is reduced, and the stability of the wireless network is further improved.
Further, according to the transmission system, the first corresponding relay communication quantity of the relay communication assembly is determined through the preset first signal intensity and the preset second signal intensity and the average signal intensity of the Mesh internet of things node, so that the influence of information transmission stability caused by the fluctuation of the network of each transmission Mesh internet of things node due to the fact that the service life of the optical fiber is too long and the attenuation of the optical fiber is increased is reduced, and the stability of the wireless network is further improved.
Furthermore, the transmission system determines the corresponding transmission mode of the information by setting the preset average amplitude and determining the signal attenuation average amplitude of the network signals of the Mesh Internet of things nodes, so that the influence of the reduction of the effectiveness of network signal diffusion of the main router caused by the fact that a part of electric quantity of the Mesh Internet of things nodes is used for establishing signal connection due to the fact that the Mesh Internet of things nodes through which the information to be forwarded passes are too many is reduced, and the stability of the wireless network is further improved.
Further, the transmission system determines the second corresponding relay connection number of the relay connection assembly according to the average consumption rate of the electric quantity of the plurality of Mesh internet-of-things nodes by setting the preset consumption rate, so that the increase of the consumption rate of the electric quantity of the Mesh internet-of-things nodes due to the excessive number of the Mesh internet-things nodes is reduced, information propagation is delayed, the influence of the reduction of the real-time performance of information transmission is caused, and the stability of the wireless network is further improved.
Drawings
Fig. 1 is a block diagram of the overall structure of an internet of things information transmission system based on an optical fiber and Mesh ad hoc network according to an embodiment of the present invention;
Fig. 2 is an overall flowchart of an internet of things information transmission method based on an optical fiber and Mesh ad hoc network according to an embodiment of the present invention;
Fig. 3 is a specific structural block diagram of a single Mesh internet of things node of an internet of things information transmission system based on an optical fiber and Mesh ad hoc network according to an embodiment of the present invention;
Fig. 4 is a specific structural block diagram of a relay communication component of an internet of things information transmission system based on an optical fiber and Mesh ad hoc network according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, the data in this embodiment are obtained by the data statistics, identification test and comprehensive analysis according to the historical test data and the corresponding test process before the use of the present invention by the internet of things information transmission system based on the optical fiber and Mesh ad hoc network; the invention relates to an Internet of things information transmission system based on an optical fiber and a Mesh ad hoc network, which integrates the variance of transmission rates among a plurality of adjacent Mesh Internet of things nodes of 1642 cases, the average signal strength of the Mesh Internet of things nodes, the average signal attenuation amplitude of Mesh Internet of things node network signals and the average power consumption rate of a plurality of Mesh Internet of things nodes in 90 days before the current use, and comprehensively determines the numerical value of each preset parameter standard of the Internet of things information transmission system based on the optical fiber and the Mesh ad hoc network. It can be understood by those skilled in the art that the determining manner of the internet of things information transmission system based on the optical fiber and Mesh ad hoc network according to the parameters can select the value with the highest duty ratio as the preset standard parameter according to the data distribution, so long as the transmission system can clearly define different specific conditions in the single item judging process through the acquired value.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, the overall structure block diagram of an internet of things information transmission system based on an optical fiber and Mesh ad hoc network according to an embodiment of the present invention, the overall flow chart of an internet of things information transmission method based on an optical fiber and Mesh ad hoc network according to an embodiment of the present invention, the specific structure block diagram of a single Mesh internet of things node, and the specific structure block diagram of a relay communication component are shown respectively. The invention provides an Internet of things information transmission system based on an optical fiber and Mesh ad hoc network, which comprises the following steps:
The self-networking module is used for constructing a Mesh network and comprises a plurality of Mesh internet-of-things nodes for detecting corresponding internet-of-things information, and for a single Mesh internet-of-things node, the self-networking module comprises a relay communication component for relaying and communicating the Mesh internet-of-things nodes and a signal conversion component connected with the relay communication component for converting optical signals into electric signals;
The optical fiber communication module is connected with the self-networking module and used for transmitting information and downloading information collected by each Mesh Internet of things node, and comprises a main router connected with the Mesh Internet of things node and used for forwarding the downloading information;
A control module, which is respectively connected with the ad hoc network module and the optical fiber communication module, and is used for determining the corresponding signal transmitting power of the Mesh internet-of-things node according to the variance of the transmission rates among a plurality of adjacent Mesh internet-of-things nodes, or determining the first working mode of the relay communication assembly according to the transmission rates among a plurality of adjacent Mesh internet-of-things nodes and the average signal intensity of the Mesh internet-of-things node, and determining the second working mode of the relay communication assembly according to the average signal intensity of the Mesh internet-of-things node and the corresponding transmitting mode of the signal attenuation average amplitude adjustment information of the Mesh internet-of-things node network signal, and according to the average electricity consumption rate of a plurality of Mesh internet-of-things nodes,
The relay communication number of the Mesh Internet of things nodes in the first working mode of the relay communication assembly is larger than that of the Mesh Internet of things nodes in the second working mode.
Referring to fig. 4, the relay communication assembly includes:
a wireless transceiver to transmit and receive signals;
A signal processor, coupled to the wireless transceiver, for demodulating and decoding the received signal;
and the power supply is respectively connected with the wireless transceiver and the signal processor and is used for supplying power to the wireless transceiver and the signal processor.
Specifically, the variance of the transmission rate between the plurality of adjacent Mesh-based object-connected nodes is the variance of the transmission rate of the information between the plurality of adjacent Mesh-based object-connected nodes, and for those skilled in the art, the calculation method of the variance of the transmission rate between the plurality of adjacent Mesh-based object-connected nodes is a conventional technical means well known to those skilled in the art, so the calculation process of the variance of the transmission rate between the plurality of adjacent Mesh-based object-connected nodes is not described herein.
Specifically, the calculation formula of the average signal intensity of the Mesh internet of things node is as follows:
Wherein W is the average signal intensity of Mesh Internet of things nodes, G a is the signal intensity of the a-th Mesh Internet of things node, b is the total number of Mesh Internet of things nodes, and b is a natural number greater than or equal to 1.
Specifically, a calculation formula of the signal attenuation average amplitude of the Mesh-connected node network signal is as follows:
wherein R is the average amplitude of signal attenuation of Mesh-type Internet of things node network signals, And y is the total number of samples of the Mesh Internet of things node, and y is a natural number greater than or equal to 1.
Specifically, the distance between any selected x-th Mesh-like things node and the selected x+1th Mesh-like things node among the first Mesh-like things node to the y-th Mesh-like things node is smaller than the distance between the x+1th Mesh-like things node and the selected x+2th Mesh-like things node.
Specifically, the calculation formula of the average consumption rate of the electric quantity of the Mesh internet of things nodes is as follows:
Wherein D is the average consumption rate of the electric quantity of a plurality of Mesh Internet of things nodes, Z n is the electric quantity consumption rate of the nth Mesh Internet of things node, L is the total number of electric quantity samples of the Mesh Internet of things nodes, and L is a natural number which is more than or equal to 1.
The calculation formula of the electricity consumption rate of the Mesh internet of things node is as follows:
Wherein H is the discharge current of the nth Mesh Internet of things node, and C is the rated capacity of the battery of the nth Mesh Internet of things node.
Specifically, the optical fiber communication module includes: optical transmitter, optical receiver and related photoelectric conversion device
An optical transmitter to convert the electrical signal into an optical signal;
The optical receiver is connected with the optical transmitter and is used for converting the optical signal transmitted by the optical fiber into an electric signal;
And a photoelectric converter disposed between the optical transmitter and the optical receiver for performing mutual conversion of the electric signal and the optical signal.
Specifically, the information and the download information collected by the Mesh internet of things node include the position information of the device, the interaction data of the user and the device state information.
Specifically, the Mesh internet of things node comprises a mobile phone, a computer and a smart watch.
In particular, the signal conversion component may be a fiber optic transceiver.
According to the transmission system, through arranging the optical fiber communication module, the ad hoc network module, the Internet of things interaction module and the control module, the corresponding signal transmitting power of the Mesh Internet of things node is determined according to the variance of the transmission rate between adjacent Mesh Internet of things nodes, so that the problem that the stability of a wireless network is reduced because the memory of the Mesh Internet of things node is limited in the process of transmitting information from the last Mesh Internet of things node to the next Mesh Internet of things node, the process of receiving and forwarding the information occupies part of the running memory, and the information uploading and the information searching of the Internet of things equipment occupy part of the memory is solved; the first working mode of the relay communication assembly is determined through the average signal intensity of the Mesh Internet of things node, so that the influence of the reduction of the stability of information transmission caused by the fluctuation of the network of each Mesh Internet of things node due to the fact that the service life of the optical fiber is too long and the broadband and signal attenuation of the optical fiber transmission are increased is reduced; the corresponding sending mode of the information is determined through the signal attenuation average amplitude of the network signals of the Mesh Internet of things nodes, so that the influence of the fact that the effectiveness of network signal diffusion of the main router is reduced due to the fact that the Mesh Internet of things nodes are too many and the electric quantity of the Mesh Internet of things nodes is partially used for establishing signal connection when the information needing to be forwarded is spoken is reduced, and the stability of the wireless network is further improved.
Referring to fig. 2, the control module obtains transmission rates between a plurality of adjacent Mesh-type internet-of-things nodes, calculates variance of the transmission rates between the plurality of adjacent Mesh-type internet-of-things nodes according to the transmission rates between the plurality of adjacent Mesh-type internet-of-things nodes,
The control module determines that the stability of the wireless network is not satisfactory under a first differential condition, wherein,
The control module controls the Mesh Internet of things node to transmit the Mesh Internet of things node signal with corresponding signal transmitting power under the second variance condition;
The first variance condition is that the variance of the transmission rate between a plurality of adjacent Mesh-based internet-of-things nodes is larger than a preset first variance; the second variance condition is that the variance of the transmission rate between the plurality of adjacent Mesh-based internet-of-things nodes is larger than a preset second variance; the preset first variance is smaller than the preset second variance.
Referring to fig. 2, the corresponding signal transmitting power is determined by a difference between the variance of the transmission rates between the plurality of adjacent Mesh-type internet of things nodes and the preset second variance.
Specifically, the process of determining the corresponding signal transmission power is:
if delta M is less than or equal to delta M0, the control module uses a preset first transmission power adjustment coefficient to adjust the standard transmission power of the internet of things interaction module to the first transmission power;
If DeltaM > DeltaM0, the control module uses a preset second transmission power adjustment coefficient to adjust the standard transmission power of the Internet of things interaction module to the second transmission power.
Specifically, the corresponding signal transmission power includes a first transmission power and a second transmission power.
Specifically, the variance of the transmission rates between the plurality of adjacent Mesh-like union nodes is denoted as M, the preset first variance is denoted as M1, the preset second variance is denoted as M2, m1=2900 Mbps 2,M2=2903Mbps2, the difference between the variance of the transmission rates between the plurality of adjacent Mesh-like union nodes and the preset second variance is denoted as Δm, Δm0 is denoted as a preset error amount difference, Δm0=3 Mbps 2, the preset first transmission power adjustment coefficient is denoted as α1, the preset second transmission power adjustment coefficient is denoted as α2, α1=1.1, α2=1.2, wherein 1 < α1 < α2, M1 < M2, the standard transmission power of the internet-of-things interaction module is denoted as E, the corresponding signal transmission power is denoted as E ', and E' =e× (1+αh)/2 is set, wherein αh is the preset h transmission power adjustment coefficient, and h=1, 2 is set.
According to the transmission system, the preset first variance and the preset second variance are set, and the corresponding signal transmitting power of the Mesh Internet of things node is determined according to the variance of the transmission rate between the adjacent Mesh Internet of things nodes, so that the memory of the Mesh Internet of things node is limited in the transmission process of information from the last Mesh Internet of things node to the next Mesh Internet of things node, part of the operation memory is occupied by the process of information receiving and forwarding, part of the memory is occupied by the process of information uploading and information searching of the Internet of things equipment, the influence of stability reduction of a wireless network is caused, and the improvement of the stability of the wireless network is further realized
With continued reference to fig. 3, the control module initially determines that the stability of the information transmission does not meet the requirement under the third-party differential condition, and obtains the signal intensities of the Mesh internet of things nodes to calculate the average signal intensity of the Mesh internet of things nodes,
The control module secondarily determines that the stability of the information transmission is not satisfactory under the first intensity condition, wherein,
The control module controls the relay communication assembly to communicate the Mesh commodity connection node according to a first working mode under a second intensity condition;
The third variance condition is that the variance of the transmission rate between the plurality of adjacent Mesh-based nodes is larger than the preset first variance and smaller than or equal to the preset second variance; the first strength condition is that the average signal strength of the Mesh Internet of things node is smaller than or equal to the preset second signal strength; the second strength condition is that the average signal strength of the Mesh Internet of things node is smaller than or equal to the preset first signal strength; wherein the preset first signal strength is smaller than the preset second signal strength.
With continued reference to fig. 3, the first working mode of the relay communication assembly is that the Mesh internet of things node communicates with a first corresponding relay communication number, where the first corresponding relay communication number is determined by a difference value between the preset first signal strength and an average signal strength of the Mesh internet of things node.
Specifically, the process of determining the first corresponding relay communication number is:
If delta W is less than or equal to delta W0, the control module uses a preset first quantity adjusting coefficient to adjust the standard relay communication quantity of the Mesh Internet of things node to a first quantity;
And if delta W > -delta W0, the control module adjusts the standard relay communication quantity of the Mesh Internet of things node to a second quantity by using a preset second quantity adjusting coefficient.
Specifically, the first corresponding relay communication number includes a first number and a second number.
Specifically, the average signal strength of the Mesh-connected node is denoted as W, the preset first signal strength is denoted as W1, the preset second signal strength is denoted as W2, w1= -25dBm, w2= -20dBm, the difference between the preset first signal strength and the average signal strength of the Mesh-connected node is denoted as Δw, Δw=w1-W is set, Δw0 is the preset signal strength difference, Δw0=5dbm, the preset first number adjustment coefficient is denoted as β1, the preset second number adjustment coefficient is denoted as β2, β1=1.1, β2=1.2, wherein 1 < β1 < β2, the standard relay connection number of the Mesh-connected node is denoted as T, the first corresponding relay connection number is denoted as T ', T' =t×βh is set, wherein βh is the preset h-th transmission power adjustment coefficient, and h=1, 2 is set.
According to the transmission system, the first working mode of the relay communication assembly is determined through the preset first signal intensity and the preset second signal intensity and the average signal intensity of the Mesh Internet of things node, so that the influence of the stability reduction of the wireless network caused by the fluctuation of the network of each transmission Mesh Internet of things node due to the fact that the service life of the optical fiber is too long and the broadband and signal attenuation of the optical fiber transmission are increased is reduced, and the stability improvement of the wireless network is further realized.
Referring to fig. 1, the control module initially determines that the network signal diffusion effectiveness of the Mesh-internet-of-things node does not meet the requirement under the third intensity condition, and obtains signal attenuation amplitudes of the network signals of the Mesh-internet-of-things nodes to calculate an average signal attenuation amplitude of the Mesh-internet-of-things node network signal,
The control module secondarily judges that the network signal diffusion effectiveness of the Mesh Internet of things node is not in accordance with the requirement when the average amplitude of the signal attenuation of the network signals of the Mesh Internet of things nodes is larger than the preset average amplitude, and controls an information sending node in the Mesh Internet of things node to send information to be sent according to the corresponding sending mode of the information;
the third strength condition is that the average signal strength of the Mesh internet of things node is greater than the preset first signal strength and less than or equal to the preset second signal strength.
Referring to fig. 1, the corresponding transmission mode of the information is that the transmission mode of the information from the information sending node to the target node is adjusted from single-line continuous transmission to multi-line transmission.
According to the transmission system, the corresponding transmission mode of the information is determined through the preset average amplitude and the signal attenuation average amplitude of the network signals of the Mesh Internet of things nodes, so that the influence of the fact that the effectiveness of network signal diffusion of the main router is reduced due to the fact that the Mesh Internet of things nodes through which the information to be forwarded passes are too many and the electric quantity of the Mesh Internet of things nodes is partially used for establishing signal connection is reduced, and the stability of the wireless network is further improved.
Referring to fig. 4, the control module obtains the power consumption rates of the plurality of Mesh internet-of-things nodes under a preset first condition to calculate the average power consumption rates of the plurality of Mesh internet-of-things nodes,
The control module judges that the real-time performance of information transmission does not meet the requirement under the condition of a preset consumption rate, and controls the relay communication assembly to communicate the Mesh commodity connection nodes according to the second corresponding relay communication quantity;
The method comprises the steps that a first condition is preset, namely the control module completes communication of Mesh Internet of things nodes with the first corresponding relay communication quantity; the preset consumption rate condition is that the average consumption rate of the electric quantity of the plurality of Mesh Internet of things nodes is smaller than the preset consumption rate; and the second corresponding relay communication quantity is determined through the difference value between the preset consumption rate and the electric quantity average consumption rate of the plurality of Mesh Internet of things nodes.
Specifically, the process of determining the second corresponding relay communication number is:
If delta D is less than or equal to delta D0, the control module uses a preset fourth quantity adjustment coefficient to adjust the first corresponding relay communication quantity to a third quantity;
If DeltaD > DeltaD0, the control module uses a preset third quantity adjusting coefficient to adjust the first corresponding relay communication quantity to a fourth quantity.
Specifically, the second corresponding relay communication number includes a third number and a fourth number.
Specifically, the average power consumption rate of the plurality of Mesh-connected nodes is denoted as D, the preset power consumption rate is denoted as D0, d0=300 Mbps, the difference between the preset power consumption rate and the average power consumption rate of the plurality of Mesh-connected nodes is denoted as Δd, Δd=d0-D is set, Δd0 is the preset power consumption rate difference, Δd0=30 Mbps, the preset third quantity adjustment coefficient is denoted as β3, the preset fourth quantity adjustment coefficient is denoted as β4, wherein 0< β3 < β4< 1, β3=0.8, β4=0.9, the second corresponding relay connection quantity is denoted as T ", T" =t' ×βp is set, wherein βp is the preset p-th quantity adjustment coefficient, and p=3, 4 is set.
According to the transmission system, the preset consumption rate is set, and the second corresponding relay communication quantity of the relay communication assembly is determined according to the average consumption rate of the electric quantity of the plurality of Mesh Internet of things nodes, so that the increase of the consumption rate of the electric quantity of the Mesh Internet of things nodes due to the excessive quantity of the Mesh Internet of things nodes is reduced, information propagation is delayed, the influence of the reduction of the real-time performance of information transmission is caused, and the stability of the wireless network is further improved.
The invention also provides an Internet of things information transmission method based on the optical fiber and Mesh ad hoc network, which comprises the following steps:
Step S1, starting a main router, configuring the main router into a wired relay mode, and sequentially carrying out relay communication on a plurality of Mesh internet of things nodes to complete Mesh network construction;
step S2, the Mesh network is accessed into an optical fiber to transmit information and downloading information collected by each Mesh Internet of things node;
Step S3, obtaining transmission rates among a plurality of adjacent Mesh commodity connection nodes;
step S4, corresponding signal transmitting power of the Mesh Internet of things node is determined based on variance of data transmission rates among the adjacent Mesh Internet of things nodes, or signal intensities of the Mesh Internet of things nodes are obtained;
Step S5, determining a first working mode of a relay communication assembly based on the data transmission rate between adjacent Mesh internet-of-things nodes and the average signal intensity of the Mesh internet-of-things nodes, or determining a corresponding transmission mode of signal attenuation average amplitude adjustment information based on the average signal intensity of the Mesh internet-of-things nodes and the network signals of a plurality of Mesh internet-of-things nodes;
And S6, acquiring the average electricity consumption rate of the plurality of Mesh Internet of things nodes after the Mesh Internet of things nodes are communicated with the first corresponding relay communication quantity, and controlling the relay communication component to communicate the Mesh Internet of things nodes according to the second corresponding relay communication quantity.
Example 1
In this embodiment 1, when W is smaller than W1, the standard relay connection number T of the Mesh internet of things node is adjusted according to a difference Δw between a preset first signal strength and an average signal strength of the Mesh internet of things node. The average signal strength of the point is denoted as W, the preset first signal strength is denoted as W1, the preset second signal strength is denoted as W2, the difference between the preset first signal strength and the average signal strength of the Mesh-connected node is denoted as Δw, Δw=w1-W is set, Δw0 is the preset signal strength difference, the preset first number adjustment coefficient is denoted as β1, the preset second number adjustment coefficient is denoted as β2, wherein 1 < β1 < β2, the standard relay communication number of the Mesh-connected node is denoted as T, the first corresponding relay communication number is denoted as T', w1= -25dBm, w2= -20dBm, β1=1.1, β2=1.2, Δw0=5dbm, and t=10, in this embodiment, w= -18dBm;
In this embodiment 1, Δw= -18dBm- (-25 dB) =7dbm, determining Δw > Δw0, and adjusting the standard relay connection number of the Mesh internet of things node to T 'by using the preset first number adjustment coefficient β1, so as to calculate T' =10×1.1=11.
While the invention has been described in connection with the preferred embodiments illustrated in the drawings, it will be readily understood by those skilled in the art that the scope of the invention is not limited to such specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (10)
1. An internet of things information transmission system based on optical fibers and Mesh ad hoc networks is characterized by comprising:
The self-networking module is used for constructing a Mesh network and comprises a plurality of Mesh internet-of-things nodes for detecting corresponding internet-of-things information, and for a single Mesh internet-of-things node, the self-networking module comprises a relay communication component for relaying and communicating the Mesh internet-of-things nodes and a signal conversion component connected with the relay communication component for converting optical signals into electric signals;
The optical fiber communication module is connected with the self-networking module and used for transmitting information and downloading information collected by each Mesh Internet of things node, and comprises a main router connected with the Mesh Internet of things node and used for forwarding the downloading information;
A control module, which is respectively connected with the ad hoc network module and the optical fiber communication module, and is used for determining the corresponding signal transmitting power of the Mesh internet-of-things node according to the variance of the transmission rates among a plurality of adjacent Mesh internet-of-things nodes, or determining the first working mode of the relay communication assembly according to the transmission rates among a plurality of adjacent Mesh internet-of-things nodes and the average signal intensity of the Mesh internet-of-things node, and determining the second working mode of the relay communication assembly according to the average signal intensity of the Mesh internet-of-things node and the corresponding transmitting mode of the signal attenuation average amplitude adjustment information of the Mesh internet-of-things node network signal, and according to the average electricity consumption rate of a plurality of Mesh internet-of-things nodes,
The relay communication number of the Mesh Internet of things nodes in the first working mode of the relay communication assembly is larger than that of the Mesh Internet of things nodes in the second working mode.
2. The internet of things information transmission system based on the optical fiber and Mesh ad hoc network according to claim 1, wherein the relay communication assembly comprises:
a wireless transceiver to transmit and receive signals;
A signal processor, coupled to the wireless transceiver, for demodulating and decoding the received signal;
and the power supply is respectively connected with the wireless transceiver and the signal processor and is used for supplying power to the wireless transceiver and the signal processor.
3. The system for information transmission of an internet of things based on an optical fiber and Mesh ad hoc network according to claim 2, wherein the control module obtains transmission rates between a plurality of adjacent Mesh internet of things nodes, calculates variance of the transmission rates between the plurality of adjacent Mesh internet of things nodes according to the transmission rates between the plurality of adjacent Mesh internet of things nodes,
The control module determines that the stability of the wireless network is not satisfactory under a first differential condition, wherein,
The control module controls the Mesh Internet of things node to transmit the Mesh Internet of things node signal with corresponding signal transmitting power under the second variance condition;
The first variance condition is that the variance of the transmission rate between a plurality of adjacent Mesh-based internet-of-things nodes is larger than a preset first variance; the second variance condition is that the variance of the transmission rate between the plurality of adjacent Mesh-based internet-of-things nodes is larger than a preset second variance; the preset first variance is smaller than the preset second variance.
4. The internet of things information transmission system based on the optical fiber and Mesh ad hoc network according to claim 3, wherein the corresponding signal transmitting power is determined by a difference value between a variance of transmission rates between the plurality of adjacent Mesh internet of things nodes and the preset second variance.
5. The system for information transmission of internet of things based on optical fiber and Mesh ad hoc network according to claim 4, wherein the control module initially determines that the stability of information transmission is not satisfactory under the condition of a third party difference, and obtains signal intensities of a plurality of Mesh internet of things nodes to calculate the average signal intensity of the Mesh internet of things nodes,
The control module secondarily determines that the stability of the information transmission is not satisfactory under the first intensity condition, wherein,
The control module controls the relay communication assembly to communicate the Mesh commodity connection node according to a first working mode under a second intensity condition;
The third variance condition is that the variance of the transmission rate between the plurality of adjacent Mesh-based nodes is larger than the preset first variance and smaller than or equal to the preset second variance; the first strength condition is that the average signal strength of the Mesh Internet of things node is smaller than or equal to the preset second signal strength; the second strength condition is that the average signal strength of the Mesh Internet of things node is smaller than or equal to the preset first signal strength; wherein the preset first signal strength is smaller than the preset second signal strength.
6. The system for transmitting internet of things information based on optical fiber and Mesh ad hoc network according to claim 5, wherein the first working mode of the relay communication assembly is that Mesh internet of things nodes are communicated in a first corresponding relay communication quantity, and the first corresponding relay communication quantity is determined by a difference value between the preset first signal intensity and the average signal intensity of the Mesh internet of things nodes.
7. The system for information transmission of internet of things based on optical fiber and Mesh ad hoc network according to claim 6, wherein said control module initially determines that the network signal diffusion effectiveness of Mesh internet of things node is not satisfactory under the third intensity condition, and obtains the signal attenuation amplitudes of the network signals of several Mesh internet of things nodes to calculate the average signal attenuation amplitude of the network signals of Mesh internet of things node,
The control module secondarily judges that the network signal diffusion effectiveness of the Mesh Internet of things node is not in accordance with the requirement when the average amplitude of the signal attenuation of the network signals of the Mesh Internet of things nodes is larger than the preset average amplitude, and controls an information sending node in the Mesh Internet of things node to send information to be sent according to the corresponding sending mode of the information;
the third strength condition is that the average signal strength of the Mesh internet of things node is greater than the preset first signal strength and less than or equal to the preset second signal strength.
8. The system for transmitting internet of things information based on the optical fiber and Mesh ad hoc network according to claim 7, wherein the corresponding transmission mode of the information is that the transmission mode of the information from the information sending node to the target node is adjusted from single-line continuous transmission to multi-line transmission.
9. The system for transmitting internet of things information based on optical fiber and Mesh ad hoc network according to claim 8, wherein the control module obtains the power consumption rate of the plurality of Mesh internet of things nodes under a preset first condition to calculate the average power consumption rate of the plurality of Mesh internet of things nodes,
The control module judges that the real-time performance of information transmission does not meet the requirement under the condition of a preset consumption rate, and controls the relay communication assembly to communicate the Mesh commodity connection nodes according to the second corresponding relay communication quantity;
The method comprises the steps that a first condition is preset, namely the control module completes communication of Mesh Internet of things nodes with the first corresponding relay communication quantity; the preset consumption rate condition is that the average consumption rate of the electric quantity of the plurality of Mesh Internet of things nodes is smaller than the preset consumption rate; and the second corresponding relay communication quantity is determined through the difference value between the preset consumption rate and the electric quantity average consumption rate of the plurality of Mesh Internet of things nodes.
10. An internet of things information transmission method applied to the internet of things information transmission system based on the optical fiber and Mesh ad hoc network as claimed in any one of claims 1 to 9, which is characterized by comprising the following steps:
starting a main router, configuring the main router into a wired relay mode, and sequentially carrying out relay communication on a plurality of Mesh internet of things nodes to complete Mesh network construction;
The Mesh network is accessed into an optical fiber to transmit information and downloading information collected by each Mesh Internet of things node;
Acquiring transmission rates among a plurality of adjacent Mesh commodity connection nodes;
determining corresponding signal transmitting power of the Mesh internet-of-things node based on variances of data transmission rates among the plurality of adjacent Mesh internet-of-things nodes, or acquiring signal strengths of the plurality of Mesh internet-of-things nodes;
Determining a first working mode of a relay communication assembly based on the data transmission rate between adjacent Mesh internet-of-things nodes and the average signal intensity of the Mesh internet-of-things nodes, or determining a corresponding transmission mode of signal attenuation average amplitude adjustment information based on the average signal intensity of the Mesh internet-of-things nodes and the network signals of a plurality of Mesh internet-of-things nodes;
And acquiring the average electricity consumption rate of the plurality of Mesh Internet of things nodes after the Mesh Internet of things nodes are communicated with the first corresponding relay communication quantity, and controlling the relay communication component to communicate the Mesh Internet of things nodes according to the second corresponding relay communication quantity.
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