CN109151752A - Farmland soil heavy metals pollute intelligent early-warning system - Google Patents
Farmland soil heavy metals pollute intelligent early-warning system Download PDFInfo
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- CN109151752A CN109151752A CN201810855383.9A CN201810855383A CN109151752A CN 109151752 A CN109151752 A CN 109151752A CN 201810855383 A CN201810855383 A CN 201810855383A CN 109151752 A CN109151752 A CN 109151752A
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- heavy metals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital using a threshold to release an alarm or displaying means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/12—Shortest path evaluation
- H04L45/124—Shortest path evaluation using a combination of metrics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/12—Shortest path evaluation
- H04L45/126—Shortest path evaluation minimising geographical or physical path length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/46—Cluster building
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
- H04W40/10—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on available power or energy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
Abstract
The present invention provides farmland soil heavy metals to pollute intelligent early-warning system, comprising: data acquisition facility is configured as obtaining farmland soil heavy metals concentration data；Data preprocessing module is configured as pre-processing the farmland soil heavy metals concentration data of acquisition, and is sent at data management module and is stored；Data management module is configured as being managed the data of storage；Analysis module is configured as farmland soil heavy metals concentration data being compared with the concentration threshold of setting and exports comparison result；Warning module is configured as receiving the comparison result, and exports warning message to the user terminal of setting when farmland soil heavy metals concentration data is greater than the concentration threshold of setting.
Description
Technical field
The present invention relates to heavy metals in farmland pollution prevention technique fields, and in particular to farmland soil heavy metals pollution intelligence is pre-
Alert system.
Background technique
Currently, the management means of farmland soil heavy metals pollution is still very backward, management work, which mainly relies on, is manually
Main, management mode is carried out by the way of interim selective examination or inspection, and management cost height, low efficiency, management are difficult in place,
There is an urgent need to the way to manage transformations from " formula of manually patrolling " mode to " being based on information technology support " for management means.Due to lacking
Based on modern information technologies farmland soil heavy metals pollution decision system support, it is difficult to comprehensively consider many factors and
When to some region of farmland soil heavy metals pollution situation carry out early warning.
Summary of the invention
In view of the above-mentioned problems, the present invention, which provides farmland soil heavy metals, pollutes intelligent early-warning system.
The purpose of the present invention is realized using following technical scheme:
Provide farmland soil heavy metals pollution intelligent early-warning system, comprising:
Data acquisition facility is configured as obtaining farmland soil heavy metals concentration data；
Data preprocessing module is configured as pre-processing the farmland soil heavy metals concentration data of acquisition, concurrently
It send to being stored at data management module；
Data management module is configured as being managed the data of storage；
Analysis module is configured as farmland soil heavy metals concentration data being compared with the concentration threshold of setting and defeated
Comparison result out；
Warning module is configured as receiving the comparison result, and is greater than setting in farmland soil heavy metals concentration data
Concentration threshold when to the user terminal of setting export warning message.
Preferably, the data acquisition facility includes:
The sensor node of aggregation node and multiple acquisition farmland soil heavy metals concentration datas, aggregation node are pre- with data
Processing module communication, multiple sensor nodes are campaigned for by node determines cluster head and sub-clustering, and the sensor node in cluster will acquire
Farmland soil heavy metals concentration data be sent to corresponding cluster head, cluster head leads to received farmland soil heavy metals concentration data
The mode for crossing multihop routing is transmitted to aggregation node.
Preferably, the data management module includes:
Metadata management submodule is configured as the addition, deletion and update of metadata；
Data fusion submodule is configured as carrying out fusion treatment to related data；
Data query submodule is configured as according to the customized querying condition real-time query related data of user；
The related data includes the farmland soil heavy metals concentration data, the metadata.
The invention has the benefit that the risk assessment and early warning of farmland soil heavy metals pollution can be realized, solve existing
There is the problems such as low intelligent level present in technology, at high cost, low efficiency；It can farmland soil heavy metals concentration to magnanimity
Data are merged and are managed collectively, solve farmland soil heavy metals concentration data it is scattered distribution, degree of share is low, is difficult to reality
When inquiry and the problems such as efficient aggregation, the management precision that farmland soil heavy metals pollute can be significantly improved.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the structural representation of the farmland soil heavy metals pollution intelligent early-warning system of an illustrative embodiment of the invention
Block diagram；
Fig. 2 is the structural schematic block diagram of the data preprocessing module of an illustrative embodiment of the invention.
Appended drawing reference:
Data acquisition facility 1, data preprocessing module 2, data management module 3, analysis module 4, warning module 5, exception
Data processing unit 10, missing data processing unit 20.
Specific embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, the embodiment of the invention provides farmland soil heavy metals to pollute intelligent early-warning system, comprising:
Data acquisition facility 1 is configured as obtaining farmland soil heavy metals concentration data；
Data preprocessing module 2 is configured as pre-processing the farmland soil heavy metals concentration data of acquisition, concurrently
It send to being stored at data management module 3；
Data management module 3 is configured as being managed the data of storage；
Analysis module 4 is configured as farmland soil heavy metals concentration data being compared simultaneously with the concentration threshold of setting
Export comparison result；
Warning module 5 is configured as receiving the comparison result, and is greater than setting in farmland soil heavy metals concentration data
Concentration threshold when to the user terminal of setting export warning message.
Wherein, the data acquisition facility 1 includes:
The sensor node of aggregation node and multiple acquisition farmland soil heavy metals concentration datas, aggregation node are pre- with data
Processing module 2 communicates, and multiple sensor nodes are campaigned for by node determines cluster head and sub-clustering, and the sensor node in cluster will acquire
Farmland soil heavy metals concentration data be sent to corresponding cluster head, cluster head leads to received farmland soil heavy metals concentration data
The mode for crossing multihop routing is transmitted to aggregation node.
In a kind of mode in the cards, the data management module 3 includes:
Metadata management submodule is configured as the addition, deletion and update of metadata；
Data fusion submodule is configured as carrying out fusion treatment to related data；
Data query submodule is configured as according to the customized querying condition real-time query related data of user；
The related data includes the farmland soil heavy metals concentration data, the metadata.
In one embodiment, as shown in Fig. 2, data preprocessing module 2 includes dealing of abnormal data unit 10 and missing
Data processing unit 20, dealing of abnormal data unit 10 are configured as carrying out the farmland soil heavy metals concentration data of acquisition different
Often detection, and the abnormal data that will test out is modified processing；Missing data processing unit 20 is configured as to agricultural land soil
Heavy metal concentration data carry out missing detection, and carry out data filling to the deletion sequence detected.
The above embodiment of the present invention can realize the risk assessment and early warning of farmland soil heavy metals pollution, solve existing skill
The problems such as intelligent level present in art is low, at high cost, low efficiency；It can farmland soil heavy metals concentration data to magnanimity
Merged and be managed collectively, solve farmland soil heavy metals concentration data it is scattered distribution, degree of share is low, is difficult to look into real time
The problems such as inquiry and efficient aggregation, can significantly improve the management precision of farmland soil heavy metals pollution.
In a kind of mode that can be realized, a sensor node in data transfer phase, cluster-leader selected cluster is made
For transfer tiny node；When the distance between remaining sensor node and transfer tiny node in cluster are closer, by the farmland soil of acquisition
Earth heavy metal concentration data are sent to transfer tiny node, when closer at a distance from cluster head, by the farmland soil heavy metals of acquisition
Concentration data is sent to the cluster head；Delay when the farmland soil heavy metals concentration data amount that transfer tiny node receives reaches its maximum
When depositing, received farmland soil heavy metals concentration data is forwarded to cluster head by transfer tiny node.
In a kind of optional mode, sensor node selects cluster head by node, comprising:
(1) when network is initial, the node degree and energy information of each sensor node in aggregation node collection network, according to receipts
The information of collection determines the relevant information for node election contest and broadcasts to each sensor node；
(2) cluster head message is selected in aggregation node broadcast, and any sensor node i is with probability ViRandomly become candidate cluster head；
(3) when sensor node i becomes candidate cluster head, cluster message is transmitted into the hop neighbor node of oneself, this enters cluster
Message includes the node degree of sensor node i；If receiving the node degree of the hop neighbor node into cluster message no more than sensor
The node degree of node i, then to sensor node i reply confirmation be added message, if more than the node degree of sensor node i, then to
Sensor node i, which is replied, transfers the possession of cluster head message；
(4) if message is added in the confirmation that sensor node i receives all hop neighbor nodes, formally become cluster head；It passes
If sensor node i is received within the set time transfers the possession of cluster head message, all hop neighbors for transferring the possession of cluster head message are being had sent
It selects node degree maximum as formal cluster head in node, and has transferred the possession of message to the neighbor node of oneself broadcast cluster head, sense
It device node i and receives the cluster head and has transferred the possession of each neighbor node of message and be all added to the formal cluster head.
Wherein, the relevant information includes the maximum node degree H of sensor node in networkmax, minimum node degree Hmin, section
Point degree summation ΔH, the sum of primary power of sensor node W in networkΔ(0), V is calculated according to the following formulai:
In formula, Wi0For the primary power of sensor node i, WiFor the current remaining of sensor node i, HiFor sensing
The node degree of device node i, H are the sensor node number in network；s1、s2For the weight coefficient of setting.
Sensor node selects cluster head by node, and this gives corresponding cluster-leader selected mechanism, the clusters
Head Selection selects candidate cluster head by way of probability selection first, then by candidate cluster head and one hop neighbor node
Node degree is compared, and selects the maximum sensor node of node degree as formal cluster head always.
The present embodiment sets the new probability formula of candidate cluster head, considers sensor node simultaneously in the new probability formula
Primary power, dump energy and node degree situation are conducive to balanced sensor node energy consumption, and the cluster head of the present embodiment is selected
Fixture of selecting a good opportunity has stronger scene adaptability.
The present embodiment big sensor node of selection node degree as far as possible when building cluster serves as cluster head, advantageously reduces cluster head
Number reduces farmland soil heavy metals to can reduce the time of farmland soil heavy metals concentration data collection on the whole
Concentration data collects time delay.
In a kind of mode that can be realized, a sensor node in cluster-leader selected cluster is as transfer tiny node, packet
It includes:
(1) select probability of each sensor node in cluster is calculated according to the following formula, and determines that MAXIMUM SELECTION therein is general
Rate VmaxWith minimum select probability Vmin:
In formula, VabIndicate that cluster head a corresponds to the select probability of cluster inner sensor node b, UabFor cluster head a and the sensor
The distance of node b, GaFor the cluster radius of the cluster head a, dbFor the communication distance of the sensor node b, ZbFor the sensor
The neighbor node number of node b, HaThe sensor node number of cluster, y are corresponded to for cluster head a1、y2For the weight coefficient of setting；
(2) sensor node each in cluster is ranked up according to the descending sequence of select probability, will be therefrom selected general
Rate is greater thanSensor node alternately transfer tiny node, and be included into alternative terminal node set；
(3) cluster head selects the maximum alternative transfer tiny node of a current remaining in alternative terminal node set
As transfer tiny node.
If not having transfer tiny node, the sensor node in cluster be will have to farmland soil heavy metals concentration numbers directly
According to cluster head is sent to, this incites somebody to action therefore biggish communication overhead and congestion.The present embodiment sets the selection mechanism of transfer tiny node,
By the setting of transfer tiny node, communication overhead and congestion on the one hand can reduce, on the other hand can effectively improve cluster head remittance
The efficiency of total farmland soil heavy metals concentration data, and the load of cluster head can be shared, to reduce the energy consumption of cluster head.
The present embodiment carries out the determination of alternative transfer tiny node according to select probability, is capable of the terminal of effective guarantee selection
Node can cover the sensor node in cluster to a wide range, to ensure certain data collection efficiency.
In a kind of mode that can be realized, when the runing time of transfer tiny node reaches the time threshold T of setting, cluster
Head judges whether transfer tiny node meets following update condition, if so, cluster head is selected again in alternative terminal node set
The maximum alternative transfer tiny node of a current remaining is selected as transfer tiny node, with the transfer tiny node before replacement:
In formula, W2For the current remaining of transfer tiny node j, WcFor c-th of transfer tiny node in alternative transfer tiny node
Current remaining, n be alternative transfer tiny node in transfer tiny node number.
The present embodiment sets the more new strategy of transfer tiny node, wherein specifically proposing the update condition based on energy.
Judge whether transfer tiny node meets the update condition by being timed monitoring to transfer tiny node, and in monitoring, when being
The update of Shi Jinhang transfer tiny node helps that the energy consumption of cluster inner sensor node is made to keep in balance.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (6)
1. farmland soil heavy metals pollute intelligent early-warning system, characterized in that include:
Data acquisition facility is configured as obtaining farmland soil heavy metals concentration data, and the data acquisition facility includes convergence
The sensor node of node and multiple acquisition farmland soil heavy metals concentration datas, aggregation node and data preprocessing module are logical
Letter, multiple sensor nodes are operated by node election contest and determine cluster head simultaneously sub-clustering, and the sensor node in cluster is by the farmland of acquisition
Heavy metal-polluted soil concentration data is sent to corresponding cluster head, and received farmland soil heavy metals concentration data is passed through multi-hop by cluster head
The mode of routing is transmitted to aggregation node；
Data preprocessing module is configured as pre-processing the farmland soil heavy metals concentration data of acquisition, and is sent to
It is stored at data management module；
Data management module is configured as being managed the data of storage；
Analysis module is configured as farmland soil heavy metals concentration data being compared with the concentration threshold of setting and exports ratio
Relatively result；
Warning module is configured as receiving the comparison result, and is greater than the dense of setting in farmland soil heavy metals concentration data
Warning message is exported to the user terminal of setting when spending threshold value.
2. farmland soil heavy metals according to claim 1 pollute intelligent early-warning system, characterized in that the data management
Module includes:
Metadata management submodule is configured as the addition, deletion and update of metadata；
Data fusion submodule is configured as carrying out fusion treatment to related data；
Data query submodule is configured as according to the customized querying condition real-time query related data of user；
The related data includes the farmland soil heavy metals concentration data, the metadata.
3. farmland soil heavy metals according to claim 1 or 2 pollute intelligent early-warning system, characterized in that data are located in advance
Managing module includes dealing of abnormal data unit, and dealing of abnormal data unit is configured as the farmland soil heavy metals concentration to acquisition
Data carry out abnormality detection, and the abnormal data that will test out is modified processing.
4. farmland soil heavy metals according to claim 3 pollute intelligent early-warning system, characterized in that data prediction mould
Block further includes missing data processing unit, and missing data processing unit is configured as carrying out farmland soil heavy metals concentration data
Missing detection, and data filling is carried out to the deletion sequence detected.
5. farmland soil heavy metals according to claim 1 pollute intelligent early-warning system, characterized in that transmit rank in data
Section, a sensor node in cluster-leader selected cluster is as transfer tiny node；Remaining sensor node and terminal section in cluster
Point the distance between it is closer when, the farmland soil heavy metals concentration data of acquisition is sent to transfer tiny node, when with cluster head
Apart from it is closer when, the farmland soil heavy metals concentration data of acquisition is sent to the cluster head；When the agriculture that transfer tiny node receives
When field heavy metal-polluted soil concentration data amount reaches its largest buffered, transfer tiny node is by received farmland soil heavy metals concentration numbers
According to being forwarded to cluster head.
6. farmland soil heavy metals according to claim 5 pollute intelligent early-warning system, characterized in that sensor node is logical
It crosses node and selects cluster head, comprising:
(1) when network is initial, the node degree and energy information of each sensor node in aggregation node collection network, according to collection
Information determines the relevant information for node election contest and broadcasts to each sensor node；
(2) cluster head message is selected in aggregation node broadcast, and any sensor node i is with probability ViRandomly become candidate cluster head；
(3) when sensor node i becomes candidate cluster head, cluster message is transmitted into the hop neighbor node of oneself, this enters cluster message
Node degree including sensor node i；If receiving the node degree of the hop neighbor node into cluster message no more than sensor node i
Node degree, then to sensor node i reply confirmation be added message, if more than the node degree of sensor node i, then to sensor
Node i, which is replied, transfers the possession of cluster head message；
(4) if message is added in the confirmation that sensor node i receives all hop neighbor nodes, formally become cluster head；Sensor
If node i receives within the set time transfers the possession of cluster head message, all hop neighbor nodes for transferring the possession of cluster head message are being had sent
It is middle to select node degree maximum as formal cluster head, and message, sensor section have been transferred the possession of to the neighbor node of oneself broadcast cluster head
It point i and receives the cluster head and has transferred the possession of each neighbor node of message and be all added to the formal cluster head.
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| CN201810855383.9A CN109151752A (en) | 2018-07-31 | 2018-07-31 | Farmland soil heavy metals pollute intelligent early-warning system |
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| CN201810855383.9A CN109151752A (en) | 2018-07-31 | 2018-07-31 | Farmland soil heavy metals pollute intelligent early-warning system |
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