CN109115988A - Agricultural land soil quality wireless sensor network monitoring device - Google Patents
Agricultural land soil quality wireless sensor network monitoring device Download PDFInfo
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Abstract
The present invention provides agricultural land soil quality wireless sensor network monitoring devices, comprising: wireless sensor network sensing module is configured as obtaining agricultural land soil mass parameter；Data preprocessing module is configured as pre-processing the agricultural land soil mass parameter of acquisition, and is sent at data management module and is stored；Data management module is configured as being managed the data of storage；Data comparison process module is configured as agricultural land soil mass parameter 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 agricultural land soil mass parameter is greater than the concentration threshold of setting.
Description
Technical field
The present invention relates to farmland monitoring technical fields, and in particular to agricultural land soil quality radio sensor network monitoring dress
It sets.
Background technique
Currently, industry is grown rapidly due to population sharp increase, solid waste is constantly stacked and is toppled over to soil surface,
Harmful waste water is constantly permeated into soil, and the pernicious gas and floating dust in atmosphere also constantly land in the soil with rainwater, is caused
Soil pollution, these soil pollutants hamper soil normal function, reduce crop yield and quality, also by grain,
Vegetables, fruit etc. influence human health indirectly, have greatly harm.
Summary of the invention
In view of the above-mentioned problems, the present invention provides agricultural land soil quality wireless sensor network monitoring device.
The purpose of the present invention is realized using following technical scheme:
Provide agricultural land soil quality wireless sensor network monitoring device, comprising:
Wireless sensor network sensing module is configured as obtaining agricultural land soil mass parameter；
Data preprocessing module is configured as pre-processing the agricultural land soil mass parameter of acquisition, and is sent to number
According to being stored at management module；
Data management module is configured as being managed the data of storage；
Data comparison process module is configured as agricultural land soil mass parameter being compared simultaneously with the concentration threshold of setting
Export comparison result；
Warning module is configured as receiving the comparison result, and is greater than the concentration of setting in agricultural land soil mass parameter
Warning message is exported to the user terminal of setting when threshold value.
Preferably, the wireless sensor network sensing module includes:
The sensor node of aggregation node and multiple acquisition agricultural land soil mass parameters, aggregation node and data prediction mould
Block communication, multiple sensor nodes are campaigned for by node determines cluster head simultaneously sub-clustering, and the sensor node in cluster is by the farmland of acquisition
Soil quality parameter is sent to corresponding cluster head, and aggregation node summarizes the agricultural land soil mass parameter that each cluster head is collected and is sent to
Data preprocessing module.
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 agricultural land soil mass parameter, the metadata.
The invention has the benefit that soil quality parameter is acquired by wireless sensor network, it can be in real time by soil
The case where recorded and analyzed, the timely early warning when soil quality parameter is unsatisfactory for condition.
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 structure of the agricultural land soil quality wireless sensor network monitoring device of an illustrative embodiment of the invention
Schematic 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:
Wireless sensor network sensing module 1, data preprocessing module 2, data management module 3, data compare processing mould
Block 4, warning module 5, dealing of abnormal data 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 agricultural land soil quality wireless sensor network monitoring devices, comprising:
Wireless sensor network sensing module 1 is configured as obtaining agricultural land soil mass parameter；
Data preprocessing module 2 is configured as pre-processing the agricultural land soil mass parameter of acquisition, and is sent to number
According to being stored at management module 3；
Data management module 3 is configured as being managed the data of storage；
Data comparison process module 4 is configured as agricultural land soil mass parameter being compared with the concentration threshold of setting
And export comparison result；
Warning module 5 is configured as receiving the comparison result, and is greater than the concentration of setting in agricultural land soil mass parameter
Warning message is exported to the user terminal of setting when threshold value.
Wherein, the wireless sensor network sensing module 1 includes:
The sensor node of aggregation node and multiple acquisition agricultural land soil mass parameters, aggregation node and data prediction mould
Block 2 communicates, and multiple sensor nodes are campaigned for by node determines cluster head simultaneously sub-clustering, and the sensor node in cluster is by the farmland of acquisition
Soil quality parameter is sent to corresponding cluster head, and aggregation node summarizes the agricultural land soil mass parameter that each cluster head is collected and is sent to
Data preprocessing module.
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 agricultural land soil mass parameter, 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 abnormal inspection to the agricultural land soil mass parameter of acquisition
It surveys, and the abnormal data that will test out is modified processing；Missing data processing unit 20 is configured as to agricultural land soil quality
Parameter carries out missing detection, and carries out data filling to the deletion sequence detected.
The above embodiment of the present invention acquires soil quality parameter by wireless sensor network, can be in real time by the feelings of soil
Condition is recorded and is analyzed, the timely early warning when soil quality parameter is unsatisfactory for condition.
In a kind of mode that can be realized, multiple cluster heads elect a transit node, Mei Gefen by node
The soil quality parameter of acquisition is sent to corresponding cluster head by the sensor node in cluster；When cluster head and the transit node distance compared with
When close, the soil quality parameter of collection is sent to the transit node by cluster head, when cluster head and the aggregation node are closer, cluster
The soil quality parameter of collection is directly sent to the aggregation node by head, and the received soil quality parameter amount of transit node reaches
When caching the limit to it, transit node, which summarizes received all soil quality parameters, is sent to the aggregation node.
When soil quality parameter is all directly sent to aggregation node by all cluster heads, will therefore biggish communication overhead and
Congestion.The present embodiment by setting transit node, avoid whole cluster heads all with aggregation node direct communication and increase energy consumption.
In one embodiment, the primary power of each sensor node is not identical in network, wherein each sensor node
Energy distribution is in [Q0,(1+r)Q0] in range, Q0It is worth the primary power of the smallest sensor node for primary power in network, (1
+r)Q0It is worth the primary power of maximum sensor node for primary power in network；It is elected between cluster head by node
One transit node, comprising:
(1) any cluster head t is set to the link of aggregation node as Lto, cluster head t estimates according to the following formula by link LtoIt is dry
The sensor node set A (L disturbedto), so that obtain the sensor node set is disturbed sensor node number
In formula, FtFor the transimission power of cluster head t, t=1 ..., m, m is the cluster head quantity in network, αjtFor cluster head t to biography
The power loss of sensor node e, sensor node e are the sensor node belonged in cluster head t communication range, FeFor the sensor
The power noise of node e, GminFor preset snr threshold；
(2) each cluster head will be disturbed sensor node number information and be sent to aggregation node, and aggregation node will be disturbed
Sensor node number is less thanCluster head alternately node, construct alternative node list, aggregation node is to each standby
Node is selected to send election contest message；
(3) each alternate node for receiving election contest message calculates the weight of itself according to the following formula, and anti-to aggregation node
Present value information:
In formula, apIndicate the weight of alternate node p, Q3For the current remaining of alternate node p, (1+r) Q0For in network
Primary power is worth the primary power of maximum sensor node, ZpFor the cluster distance of alternate node p, Dp,oFor alternate node p to remittance
The distance of poly- node；k1、k2For preset weight coefficient；
(4) aggregation node is using the cluster head of maximum weight as transit node, and broadcast message is worth all cluster heads.
Interference is a noticeable major issue in wireless sensor network caused by link.Serious interference will
Cause communication contention aware and data to retransmit, and then reduces the various performances of network, such as network throughput.The present embodiment is from chain
Road disturbing factor sets out, the screening conditions provided with corresponding alternate node, and the alternate node filtered out is further passed through power
Value relatively determines final transit node, so that the cluster head for effectively preventing may cause larger interference becomes transit node.
The present embodiment has determined the calculation formula of weight based on energy, distance factor, so that energy is larger, cluster is apart from larger
And there is bigger probability to become transit node apart from the closer alternate node of aggregation node, be conducive to balance network energy consumption, section
Save energy, the cycle of operation of further prolonging wireless sensor network.
In one embodiment, aggregation node updates the power of each alternate node in alternative node list according to predetermined period
Value information, again using the alternate node of maximum weight as transit node after updating each time, to realize transit node
Rotation, wherein the more new formula of setting weight are as follows:
In formula, ap cIt is alternate node p in the c times updated weight, ap c-1It is alternate node p after the c-1 times updates
Weight, Qp cFor current remaining of the alternate node p when updating for the c times, WpUp to the present the alternate node p is served as
The number of transit node, WmaxFor preset times threshold value, v is preset impact factor, serves as transit node number pair for indicating
The influence degree of weight.
The present embodiment proposes the rotation mechanism of transit node, wherein by energy attenuation, serving as transit node number to power
The factor of the influence of value as right value update, innovatively sets the more new formula of weight.
The present embodiment by being regularly updated to transit node, and every time update after again with the alternative section of maximum weight
Point is used as transit node, avoids always using same cluster head as transit node, is conducive to each cluster of balanced alternately node
First energy consumption, thus the cycle of operation of effectively prolonging wireless sensor network, to improve soil quality parameter acquisition and biography
Defeated reliability.
In one embodiment, aggregation node is periodically filtered operation to each alternate node in alternative node list,
Include:
(1) judge that each alternate node serves as the number of transit node and whether reaches preset times threshold value, pre- is reached to number
If the alternate node of frequency threshold value is deleted from alternative node list；
(2) judge whether the history weight situation of each alternate node meets following condition, to meeting the alternative of following condition
Node is deleted from alternative node list:
In formula, ap hIt is alternate node p in the h times updated weight, s is up to the present right value update total degree,
For cluster distance average,ZtFor the cluster distance of cluster head t；For the average distance of cluster head to aggregation node,Dt,oFor the distance of cluster head t to aggregation node.
Cluster head periodically detects each alternate node in alternative node list in the present embodiment, and is based on serving as transfer
Degree of node and history weight situation are provided with corresponding testing conditions, which can filter out history weight and be less than
The excessive alternate node of network average weight, the number for serving as transit node.The present embodiment is not to meeting the alternative of testing conditions
Node is deleted, and can effectively be saved the update rotation time of transit node, be improved the screening efficiency of transit node, Jin Erjie
Save the monitoring cost of agricultural land soil quality wireless sensor network monitoring device.
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. agricultural land soil quality wireless sensor network monitoring device, characterized in that include:
Wireless sensor network sensing module is configured as obtaining agricultural land soil mass parameter；
Data preprocessing module is configured as pre-processing the agricultural land soil mass parameter of acquisition, and is sent to data pipe
It is stored at reason module；
Data management module is configured as being managed the data of storage；
Data comparison process module is configured as that agricultural land soil mass parameter is compared and is exported with the concentration threshold of setting
Comparison result；
Warning module is configured as receiving the comparison result, and is greater than the concentration threshold of setting in agricultural land soil mass parameter
When to the user terminal of setting export warning message；
Wherein, the wireless sensor network sensing module includes the biography of aggregation node and multiple acquisition agricultural land soil mass parameters
Sensor node, aggregation node are communicated with data preprocessing module, and multiple sensor nodes, which campaign for operate by node, determines cluster head
And the agricultural land soil mass parameter of acquisition is sent to corresponding cluster head by sub-clustering, the sensor node in cluster, aggregation node summarizes
The agricultural land soil mass parameter of each cluster head collection is simultaneously sent to data preprocessing module；Multiple cluster heads are elected by node
The soil quality parameter of acquisition is sent to corresponding cluster head by one transit node, the sensor node in each sub-clustering；Work as cluster head
When being closer with the transit node, the soil quality parameter of collection is sent to the transit node by cluster head, cluster head with it is described
When aggregation node is closer, the soil quality parameter of collection is directly sent to the aggregation node, the transit node by cluster head
When received soil quality parameter amount reaches its caching limit, received all soil quality parameters are summarized transmission by transit node
To the aggregation node.
2. agricultural land soil quality wireless sensor network monitoring device according to claim 1, 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 agricultural land soil mass parameter, the metadata.
3. agricultural land soil quality wireless sensor network monitoring device according to claim 1 or 2, characterized in that data
Preprocessing module includes dealing of abnormal data unit, and dealing of abnormal data unit is configured as the agricultural land soil quality ginseng to acquisition
The abnormal data that number is carried out abnormality detection, and be will test out is modified processing.
4. agricultural land soil quality wireless sensor network monitoring device according to claim 3, characterized in that data are located in advance
Managing module further includes missing data processing unit, and missing data processing unit is configured as carrying out agricultural land soil mass parameter scarce
It lapses survey, and data filling is carried out to the deletion sequence detected.
5. agricultural land soil quality wireless sensor network monitoring device according to claim 1, characterized in that the sensing
Device node includes heavy metal-polluted soil sensor, soil moisture sensor, soil temperature sensor, P in soil H sensor, soil salt
One of sub-sensor, underground water heavy metal sensor, underground water temperature sensor or multiple sensors.
6. agricultural land soil quality wireless sensor network monitoring device according to claim 5, characterized in that each in network
The primary power of sensor node is not identical, wherein the Energy distribution of each sensor node is in [Q0, (1+r) Q0] in range, Q0For
Primary power is worth the primary power of the smallest sensor node in network, (1+r) Q0It is worth maximum biography for primary power in network
The primary power of sensor node；A transit node is elected by node between cluster head, comprising:
(1) any cluster head t is set to the link of aggregation node as Lto, cluster head t estimates according to the following formula by link LtoInterference
Sensor node set A (Lto), so that obtain the sensor node set is disturbed sensor node number
In formula, FtFor the transimission power of cluster head t, t=1 ..., m, m are the cluster head quantity in network, αjtFor cluster head t to sensor
The power loss of node e, sensor node e are the sensor node belonged in cluster head t communication range, FeFor the sensor node
The power noise of e, GminFor preset snr threshold；
(2) each cluster head will be disturbed sensor node number information and be sent to aggregation node, and aggregation node will be disturbed sensing
Device node number is less thanCluster head alternately node, construct alternative node list, aggregation node is to each alternative section
Point sends election contest message；
(3) each alternate node for receiving election contest message calculates the weight of itself according to the following formula, and feeds back and weigh to aggregation node
Value information:
In formula, apIndicate the weight of alternate node p, QpFor the current remaining of alternate node p, (1+r) Q0It is initial in network
The primary power of the maximum sensor node of energy value, ZpFor the cluster distance of alternate node p, DP, oIt is saved for alternate node p to convergence
The distance of point；k1、k2For preset weight coefficient；
(4) aggregation node is using the cluster head of maximum weight as transit node, and broadcast message is worth all cluster heads.
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| CN109003431A (en) * | 2018-09-04 | 2018-12-14 | 广州巨枫科技有限公司 | The agricultural land soil quality intelligent of high-precision low cost monitors system |
| CN109413193A (en) * | 2018-11-08 | 2019-03-01 | 南京华渊农业科技有限公司 | Soil quality monitoring device for precision agriculture |
| CN109787840A (en) * | 2019-03-01 | 2019-05-21 | 苏州迈荣祥信息科技有限公司 | A kind of big data management system and method |
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