CN116939531B - Sewage treatment monitoring method and system - Google Patents
Sewage treatment monitoring method and system Download PDFInfo
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- CN116939531B CN116939531B CN202311179783.XA CN202311179783A CN116939531B CN 116939531 B CN116939531 B CN 116939531B CN 202311179783 A CN202311179783 A CN 202311179783A CN 116939531 B CN116939531 B CN 116939531B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 232
- 239000010865 sewage Substances 0.000 title claims abstract description 171
- 238000000034 method Methods 0.000 title claims abstract description 37
- 241000854291 Dianthus carthusianorum Species 0.000 claims abstract description 69
- 238000004891 communication Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000004065 wastewater treatment Methods 0.000 claims description 12
- 238000000638 solvent extraction Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/32—Connectivity information management, e.g. connectivity discovery or connectivity update for defining a routing cluster membership
Abstract
The invention belongs to the field of monitoring and discloses a sewage treatment monitoring method and a sewage treatment monitoring system, wherein the method comprises the following steps: s1, setting a wireless sensor node and a monitoring gateway in a sewage treatment area of a sewage treatment plant; s2, clustering the wireless sensor nodes by a monitoring gateway, and dividing the wireless sensor nodes into member nodes and cluster head nodes; s3, acquiring monitoring data of the sewage treatment area by the member node, and transmitting the monitoring data to the corresponding cluster head node by the member node; s4, the cluster head node sends the monitoring data acquired by the member node to a monitoring gateway; s5, the monitoring gateway sends the monitoring data to the monitoring terminal; and S6, displaying the monitoring data by the monitoring terminal. According to the invention, the monitoring data is acquired through the wireless sensor node, so that the monitoring of the sewage treatment process is realized, and meanwhile, the maintenance difficulty of a communication line is reduced.
Description
Technical Field
The invention relates to the field of monitoring, in particular to a sewage treatment monitoring method and system.
Background
In the sewage treatment process, state information of various treatment pools and various treatment equipment is required to be acquired and then uploaded to a monitoring center, so that workers can know the sewage treatment state in real time. In the prior art, various data in the sewage treatment process are generally acquired by adopting a wired communication mode, but when water quality data in the middle area of the treatment tank is acquired by adopting a wired connection mode, a communication line needs to be immersed in the treatment tank, so that maintenance of the communication line becomes extremely difficult, and the treatment tank needs to stop water inflow for maintenance.
Disclosure of Invention
The invention aims to disclose a sewage treatment monitoring method and a system, which solve the problem of reducing the operation and maintenance difficulty of data acquisition equipment when various data of a sewage treatment process are acquired to monitor the sewage treatment process.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in one aspect, the invention provides a sewage treatment monitoring method, comprising the following steps:
s1, setting a wireless sensor node and a monitoring gateway in a sewage treatment area of a sewage treatment plant;
s2, clustering the wireless sensor nodes by a monitoring gateway, and dividing the wireless sensor nodes into member nodes and cluster head nodes;
s3, acquiring monitoring data of the sewage treatment area by the member node, and transmitting the monitoring data to the corresponding cluster head node by the member node;
s4, the cluster head node sends the monitoring data acquired by the member node to a monitoring gateway;
s5, the monitoring gateway sends the monitoring data to the monitoring terminal;
s6, displaying the monitoring data by the monitoring terminal;
the wireless sensor nodes are clustered by the monitoring gateway, and the wireless sensor nodes are divided into member nodes and cluster head nodes, and the wireless sensor nodes comprise:
partitioning the sewage treatment area into a plurality of monitoring areas;
calculating the communication capacity value of the wireless sensor node in each monitoring area respectively;
and taking the first Q wireless sensor nodes with the largest communication capacity value in the monitoring area as cluster head nodes, and taking the rest wireless sensor nodes in the monitoring area as member nodes.
Preferably, the sewage treatment area includes an area where sewage treatment equipment is located and an area where a sewage treatment tank is located.
Preferably, a wireless sensor node and a monitoring gateway are arranged in a sewage treatment area of a sewage treatment plant, comprising:
setting wireless sensor nodes at preset positions of the sewage treatment pool;
setting a wireless sensor node at the position of sewage treatment equipment;
a monitoring gateway is arranged at the central position of the sewage treatment area.
Preferably, the monitoring data is water quality data of the sewage treatment tank or operation data of the sewage treatment apparatus.
Preferably, the acquiring, by the member node, monitoring data of the sewage treatment area includes:
if the member node is positioned at the preset position of the sewage treatment pool, the member node acquires water quality data of the sewage treatment pool;
and if the member node is positioned at the position of the sewage treatment equipment, acquiring the operation data of the sewage treatment equipment by the member node.
Preferably, the cluster head node is further configured to obtain monitoring data of the wastewater treatment area,
when the cluster head nodes are positioned at preset positions of the sewage treatment tank, the cluster head nodes acquire water quality data of the sewage treatment tank;
when the cluster head node is positioned at the position of the sewage treatment equipment, the cluster head node acquires the operation data of the sewage treatment equipment.
Preferably, the cluster head node is further configured to send the monitoring data acquired by the cluster head node to the monitoring terminal.
Preferably, the monitoring terminal comprises a communication module, a database module and a display module;
the communication module is used for communicating with the wireless sensor node;
the database module is used for storing the monitoring data sent by the cluster head node;
the display module is used for displaying the monitoring data.
Preferably, the calculation function of the communication capability value is:
for the communication capability value of the wireless sensor node d,/-for>Is the residual capacity of the wireless sensor node d, < +.>For the full power of the wireless sensor node d, +.>Is connected with a wireless sensorThe number of other wireless sensor nodes with a distance between the points d smaller than the maximum communication radius of the wireless sensor node d, +.>Representing a preset number; />For the position coefficient of the wireless sensor node d, < ->Is the maximum value of the position coefficient,，/>minimum value representing distance between wireless sensor node d and center of sewage treatment tank,/-for wireless sensor node d>Maximum value representing the distance of the wireless sensor node in the sewage treatment area from the center of the sewage treatment tank,/->Representing a preset position coefficient,/->Respectively representing the preset residual power weight, coverage weight and position coefficient weight, ++>The sum between these three variables is 1.
In another aspect, the present invention provides a sewage treatment monitoring system, comprising a monitoring terminal, and a wireless sensor node and a monitoring gateway disposed in a sewage treatment area of a sewage treatment plant:
the monitoring gateway is used for clustering the wireless sensor nodes, and dividing the wireless sensor nodes into member nodes and cluster head nodes;
the member nodes are used for acquiring monitoring data of the sewage treatment area and sending the monitoring data to the corresponding cluster head nodes;
the cluster head node is used for sending the monitoring data acquired by the member node to the monitoring gateway;
the monitoring gateway is used for sending the monitoring data to the monitoring terminal;
the monitoring terminal is used for displaying the monitoring data;
the wireless sensor nodes are clustered by the monitoring gateway, and the wireless sensor nodes are divided into member nodes and cluster head nodes, and the wireless sensor nodes comprise:
partitioning the sewage treatment area into a plurality of monitoring areas;
calculating the communication capacity value of the wireless sensor node in each monitoring area respectively;
and taking the first Q wireless sensor nodes with the largest communication capacity value in the monitoring area as cluster head nodes, and taking the rest wireless sensor nodes in the monitoring area as member nodes.
Compared with the existing method for acquiring the monitoring data in the sewage treatment process by wired connection, the method for acquiring the monitoring data by the wireless sensor node does not have the condition that a communication line is immersed in a treatment pool because the wireless sensor node is used for communication, and reduces the maintenance difficulty of the communication line while acquiring the monitoring data in the sewage treatment process to monitor the sewage treatment process.
Drawings
FIG. 1 is a schematic diagram of a sewage treatment monitoring method of the present invention.
Fig. 2 is a schematic diagram of a sewage treatment monitoring system according to the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In one embodiment as shown in fig. 1, the present invention provides a sewage treatment monitoring method, including:
s1, setting a wireless sensor node and a monitoring gateway in a sewage treatment area of a sewage treatment plant;
s2, clustering the wireless sensor nodes by a monitoring gateway, and dividing the wireless sensor nodes into member nodes and cluster head nodes;
s3, acquiring monitoring data of the sewage treatment area by the member node, and transmitting the monitoring data to the corresponding cluster head node by the member node;
s4, the cluster head node sends the monitoring data acquired by the member node to a monitoring gateway;
s5, the monitoring gateway sends the monitoring data to the monitoring terminal;
s6, displaying the monitoring data by the monitoring terminal;
the wireless sensor nodes are clustered by the monitoring gateway, and the wireless sensor nodes are divided into member nodes and cluster head nodes, and the wireless sensor nodes comprise:
partitioning the sewage treatment area into a plurality of monitoring areas;
calculating the communication capacity value of the wireless sensor node in each monitoring area respectively;
and taking the first Q wireless sensor nodes with the largest communication capacity value in the monitoring area as cluster head nodes, and taking the rest wireless sensor nodes in the monitoring area as member nodes.
Compared with the existing method for acquiring the monitoring data in the sewage treatment process by wired connection, the method for acquiring the monitoring data by the wireless sensor node does not have the condition that a communication line is immersed in a treatment pool because the wireless sensor node is used for communication, and reduces the maintenance difficulty of the communication line while acquiring the monitoring data in the sewage treatment process to monitor the sewage treatment process.
In addition, in the clustering process, the sewage treatment area is divided into a plurality of monitoring areas, so that the distribution of the cluster head nodes is more reasonable, the random distribution of the cluster head nodes is avoided, the situation that the electric quantity of a single cluster head node is consumed too quickly is avoided, and the service life of the cluster head node is prolonged.
Preferably, the sewage treatment area is partitioned, and the sewage treatment area is divided into a plurality of monitoring areas, including:
the sewage treatment area is partitioned by adopting a fixed period, and is divided into a plurality of monitoring areas.
Specifically, the result of the monitoring area is not kept all the time, but changed back to be updated again at intervals, so that the size of the monitoring area can be changed with the change of the state of the wireless sensor node, and the average working time of the wireless sensor node after full power is prolonged.
Preferably, dividing the sewage treatment area into a plurality of monitoring areas includes:
obtaining the maximum value, the minimum value, the maximum value and the minimum value of the abscissa and the ordinate of the sewage treatment area;
acquiring a middle area, wherein the position range of the middle area is as follows:
and->；
a and b represent the abscissa and ordinate respectively of the point in the intermediate region,minimum value representing abscissa of sewage treatment area, +.>Maximum value of the abscissa indicating the sewage treatment area, +.>Minimum value representing the ordinate of the sewage treatment area,/->A maximum value representing an ordinate of the sewage treatment area;
the intermediate area is processed as follows:
dividing the middle area into N monitoring areas with the same area, and storing the obtained monitoring areas into a calculation set;
step two, obtaining a distribution coefficient of each monitoring area in the calculation set;
thirdly, storing a monitoring area with the distribution coefficient being larger than a set distribution coefficient threshold value into a middle set, and storing a monitoring area with the distribution coefficient being smaller than or equal to the set distribution coefficient threshold value into a result set;
fourth, deleting all elements in the calculation set so that the calculation set becomes an empty set;
fifthly, judging whether the number of elements in the middle set is larger than 0, if so, entering a sixth step, and if not, taking the elements in the result set as a finally obtained monitoring area;
and sixthly, dividing each element in the middle set into N monitoring areas with the same area, storing the obtained monitoring areas into a calculation set, and entering the second step.
In the process of partitioning the sewage treatment area, the method firstly obtains the middle area and changes the irregular sewage treatment area into the regular sewage treatment area, thereby reducing the difficulty of partitioning. In addition, the invention does not directly divide the middle area into the monitoring areas with the same size, because the invention has the following problems that on one hand, because the residual electric quantity of the wireless sensor node is always changed, the quantity of the monitoring areas which need to be divided is difficult to be fixed, if the size of the monitoring areas is directly fixed, when the average residual electric quantity of the wireless sensor node is smaller, the wireless sensor node serving as a cluster head can consume the electric quantity more quickly and quit working, thereby being unfavorable for reducing the difficulty of maintenance; on the other hand, the types of the monitoring data acquired by different wireless sensor nodes are different, so that the acquisition frequencies are not the same, if the acquisition frequencies of the wireless sensor nodes in a part of areas are approximately the same, and the member nodes are communicated with the cluster head nodes, so that the time for waiting for transmission in a back-off mode is increased, and the transmission efficiency of the monitoring data is affected.
Preferably, the calculation function of the distribution coefficient is:
distribution coefficient representing the monitored area k +.>Representing the weighting parameters +.>，/>Andrespectively the length and width of the monitoring area k, < + >>Represents the standard size of the monitoring area, +.>Representing a set of wireless sensor nodes in the monitoring area k +.>Representing the data acquisition frequency of the wireless sensor node v,representing the number of wireless sensor nodes in the monitoring area k, +.>Indicating deviceThe variance of the data acquisition frequency is fixed.
The distribution coefficient refers to the length and the width of the monitoring area and refers to the data acquisition frequency of the wireless sensor nodes in the monitoring area during calculation, so that the monitoring area with larger product of the length and the width and smaller variance of the data acquisition frequency is required to be continuously partitioned, the difference of the acquisition frequencies of the wireless sensor nodes in the finally obtained monitoring area is as large as possible, the monitoring area cannot be excessively large, and the transmission efficiency of monitoring data is improved.
Preferably, the method comprises the steps of,the calculation function of (2) is:
d represents the total number of wireless sensor nodes,and->Representing the power amplification factor of the automatic space model and the amplification factors of the multipath attenuation model, respectively, +.>For the size of the middle region, +.>Is the median of the distance between the wireless sensor node and the monitoring gateway.
Specifically, the standard size of the monitoring area is not arbitrarily specified, but is calculated comprehensively by the number of wireless sensor nodes, the size of the middle area and the median of the distance between the wireless sensor nodes and the monitoring gateway. The calculated standard size is more in line with the actual situation, so that the effective degree of the distribution coefficient is improved, and a more accurate monitoring area is obtained.
Preferably, the sewage treatment area includes an area where sewage treatment equipment is located and an area where a sewage treatment tank is located.
Specifically, the sewage treatment tank comprises a sedimentation tank, an adjusting tank, a biochemical tank, a disinfection tank, a sludge drying tank and the like.
The sewage treatment equipment comprises a filter, a filter press, a sewage pump, an aeration fan, a dosing device, a sewage disinfection device, an on-line monitoring device, an electric control cabinet and the like.
Preferably, a wireless sensor node and a monitoring gateway are arranged in a sewage treatment area of a sewage treatment plant, comprising:
setting wireless sensor nodes at preset positions of the sewage treatment pool;
setting a wireless sensor node at the position of sewage treatment equipment;
a monitoring gateway is arranged at the central position of the sewage treatment area.
Specifically, the preset position of the sewage treatment tank is obtained by the following steps:
dividing the sewage treatment pool into a plurality of sampling areas with the same size;
the center of each sampling area is used as a preset position.
When the area of the sewage treatment tank is relatively large, uniform sampling at a plurality of positions is needed to accurately obtain the water quality condition of sewage in the sewage treatment tank. If only a part of the positions are acquired, it is easy to cause a situation that the acquired data cannot correctly reflect the water quality in the sewage treatment tank.
Specifically, the position where the sewage treatment apparatus is located is a position where operation data of the sewage treatment apparatus can be acquired. For example, for a sewage pump, it may be the location of the outlet of the sewage pump for taking the flow of sewage through the sewage pump.
Specifically, in a wastewater treatment tank, wireless sensor nodes are disposed above the water surface.
Preferably, the monitoring data is water quality data of the sewage treatment tank or operation data of the sewage treatment apparatus.
Specifically, the water quality data includes biochemical oxygen demand, chemical oxygen demand, total oxygen demand, pH, hardness, and the like.
The operation data of the sewage treatment equipment comprises flow, voltage, current and the like.
Preferably, the acquiring, by the member node, monitoring data of the sewage treatment area includes:
if the member node is positioned at the preset position of the sewage treatment pool, the member node acquires water quality data of the sewage treatment pool;
and if the member node is positioned at the position of the sewage treatment equipment, acquiring the operation data of the sewage treatment equipment by the member node.
Specifically, the type of the monitoring data collected by the member node is determined by the location of the member node.
Preferably, the cluster head node is further configured to obtain monitoring data of the wastewater treatment area,
when the cluster head nodes are positioned at preset positions of the sewage treatment tank, the cluster head nodes acquire water quality data of the sewage treatment tank;
when the cluster head node is positioned at the position of the sewage treatment equipment, the cluster head node acquires the operation data of the sewage treatment equipment.
Specifically, the type of the monitoring data collected by the cluster head node is determined by the position of the member node. The cluster head node is used for acquiring the monitoring data of the position where the cluster head node is located besides the monitoring data acquired by the forwarding member node.
Preferably, the cluster head node is further configured to send the monitoring data acquired by the cluster head node to the monitoring terminal.
Specifically, the cluster head node may send the monitoring data acquired by itself and the monitoring data sent by the received member node to the monitoring terminal.
Preferably, the monitoring terminal comprises a communication module, a database module and a display module;
the communication module is used for communicating with the wireless sensor node;
the database module is used for storing the monitoring data sent by the cluster head node;
the display module is used for displaying the monitoring data.
Preferably, the monitoring data is displayed, including
And inputting the monitoring data into a pre-established three-dimensional model of the sewage treatment plant for display.
Specifically, the three-dimensional model can comprise a model of a sewage treatment tank and a model of sewage treatment equipment, and the monitoring data are matched with the corresponding three-dimensional model, so that visual display of the monitoring data is realized.
For example, the real-time flow of the sewage pump may be displayed above the sewage pump.
Preferably, the calculation function of the communication capability value is:
for the communication capability value of the wireless sensor node d,/-for>Is the residual capacity of the wireless sensor node d, < +.>For the full power of the wireless sensor node d, +.>The number of other wireless sensor nodes for which the distance to the wireless sensor node d is smaller than the maximum communication radius of the wireless sensor node d, +.>Representing a preset number; />For the position coefficient of the wireless sensor node d, < ->Is the maximum value of the position coefficient,，/>minimum value representing distance between wireless sensor node d and center of sewage treatment tank,/-for wireless sensor node d>Maximum value representing the distance of the wireless sensor node in the sewage treatment area from the center of the sewage treatment tank,/->Representing a preset position coefficient,/->Respectively representing the preset residual power weight, coverage weight and position coefficient weight, ++>The sum between these three variables is 1.
Specifically, the larger the remaining power, the larger the number of other wireless sensor nodes included in the range of the maximum communication radius, the larger the position coefficient, the larger the communication capability value, which means that the wireless sensor node is more suitable as a cluster head node. The above calculation function can select the wireless sensor node with the best comprehensive capacity to serve as the cluster head node. The number of other wireless sensor nodes included in the range of the residual electric quantity and the maximum communication radius is a common parameter, and the position coefficient is a parameter newly introduced by the invention for calculating the communication capacity value. Under the condition that other variables are the same, the position coefficient can enable the communication capacity value of the wireless sensor node which is smaller from the center of the sewage treatment tank to be smaller, so that the probability that the wireless sensor node in the sewage treatment tank acts as a cluster head node is lowered, the electricity consumption speed of the wireless sensor node in the sewage treatment tank is reduced, and the maintenance difficulty is reduced. Because maintaining wireless sensor nodes in a wastewater treatment tank is somewhat more difficult than maintaining wireless sensor nodes in a non-wastewater treatment tank.
Specifically, the preset position coefficient may be a positive integer.
In another aspect, as shown in fig. 2, the present invention provides a sewage treatment monitoring system including a monitoring terminal and wireless sensor nodes and monitoring gateways disposed in a sewage treatment area of a sewage treatment plant:
the monitoring gateway is used for clustering the wireless sensor nodes, and dividing the wireless sensor nodes into member nodes and cluster head nodes;
the member nodes are used for acquiring monitoring data of the sewage treatment area and sending the monitoring data to the corresponding cluster head nodes;
the cluster head node is used for sending the monitoring data acquired by the member node to the monitoring gateway;
the monitoring gateway is used for sending the monitoring data to the monitoring terminal;
the monitoring terminal is used for displaying the monitoring data;
the wireless sensor nodes are clustered by the monitoring gateway, and the wireless sensor nodes are divided into member nodes and cluster head nodes, and the wireless sensor nodes comprise:
partitioning the sewage treatment area into a plurality of monitoring areas;
calculating the communication capacity value of the wireless sensor node in each monitoring area respectively;
and taking the first Q wireless sensor nodes with the largest communication capacity value in the monitoring area as cluster head nodes, and taking the rest wireless sensor nodes in the monitoring area as member nodes.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A sewage treatment monitoring method, characterized by comprising:
s1, setting a wireless sensor node and a monitoring gateway in a sewage treatment area of a sewage treatment plant;
s2, clustering the wireless sensor nodes by a monitoring gateway, and dividing the wireless sensor nodes into member nodes and cluster head nodes;
s3, acquiring monitoring data of the sewage treatment area by the member node, and transmitting the monitoring data to the corresponding cluster head node by the member node;
s4, the cluster head node sends the monitoring data acquired by the member node to a monitoring gateway;
s5, the monitoring gateway sends the monitoring data to the monitoring terminal;
s6, displaying the monitoring data by the monitoring terminal;
the wireless sensor nodes are clustered by the monitoring gateway, and the wireless sensor nodes are divided into member nodes and cluster head nodes, and the wireless sensor nodes comprise:
partitioning the sewage treatment area into a plurality of monitoring areas;
calculating the communication capacity value of the wireless sensor node in each monitoring area respectively;
taking the first Q wireless sensor nodes with the largest communication capacity value in the monitoring area as cluster head nodes, and taking the rest wireless sensor nodes in the monitoring area as member nodes;
dividing the wastewater treatment area into a plurality of monitoring areas, comprising:
obtaining the maximum value, the minimum value, the maximum value and the minimum value of the abscissa and the ordinate of the sewage treatment area;
acquiring a middle area, wherein the position range of the middle area is as follows:
hzmix is less than or equal to a and less than or equal to hzmax, and hzmix is less than or equal to b and less than or equal to hzmix;
a and b represent the abscissa and ordinate, respectively, of the point in the intermediate zone, hzmix represents the minimum value of the abscissa of the sewage treatment zone, hzmax represents the maximum value of the abscissa of the sewage treatment zone, hzmix represents the minimum value of the ordinate of the sewage treatment zone, hzmix represents the maximum value of the ordinate of the sewage treatment zone;
the intermediate area is processed as follows:
dividing the middle area into N monitoring areas with the same area, and storing the obtained monitoring areas into a calculation set;
step two, obtaining a distribution coefficient of each monitoring area in the calculation set;
thirdly, storing a monitoring area with the distribution coefficient being larger than a set distribution coefficient threshold value into a middle set, and storing a monitoring area with the distribution coefficient being smaller than or equal to the set distribution coefficient threshold value into a result set;
fourth, deleting all elements in the calculation set so that the calculation set becomes an empty set;
fifthly, judging whether the number of elements in the middle set is larger than 0, if so, entering a sixth step, and if not, taking the elements in the result set as a finally obtained monitoring area;
step six, dividing each element in the middle set into N monitoring areas with the same area, storing the obtained monitoring areas into a calculation set, and entering a step two;
the calculation function of the distribution coefficient is:
dtrbcoef k representing the distribution coefficient of the monitored area k,representing the weighting parameters +.>length k And width k Respectively the length and width of the monitored area k, midarea represents the standard size of the monitored area, monreg represents the set of wireless sensor nodes in the monitored area k, freq v Represents the data acquisition frequency of the wireless sensor node v, nmreg represents the number of wireless sensor nodes in the monitored area k, freqvran represents the set data acquisition frequency variance.
2. A sewage treatment monitoring method according to claim 1, wherein the sewage treatment area includes an area where sewage treatment equipment is located and an area where a sewage treatment tank is located.
3. A sewage treatment monitoring method according to claim 2, wherein a wireless sensor node and a monitoring gateway are provided in a sewage treatment area of a sewage treatment plant, comprising:
setting wireless sensor nodes at preset positions of the sewage treatment pool;
setting a wireless sensor node at the position of sewage treatment equipment;
a monitoring gateway is arranged at the central position of the sewage treatment area.
4. A sewage treatment monitoring method according to claim 3, wherein the monitoring data is water quality data of a sewage treatment tank or operation data of sewage treatment equipment.
5. The wastewater treatment monitoring method of claim 4, wherein the acquiring of the monitoring data of the wastewater treatment area by the member node comprises:
if the member node is positioned at the preset position of the sewage treatment pool, the member node acquires water quality data of the sewage treatment pool;
and if the member node is positioned at the position of the sewage treatment equipment, acquiring the operation data of the sewage treatment equipment by the member node.
6. A sewage treatment monitoring method as claimed in claim 4, wherein the cluster head node is further adapted to acquire monitoring data of the sewage treatment area,
when the cluster head nodes are positioned at preset positions of the sewage treatment tank, the cluster head nodes acquire water quality data of the sewage treatment tank;
when the cluster head node is positioned at the position of the sewage treatment equipment, the cluster head node acquires the operation data of the sewage treatment equipment.
7. The sewage treatment monitoring method according to claim 6, wherein the cluster head node is further configured to send the monitoring data acquired by itself to the monitoring terminal.
8. The sewage treatment monitoring method according to claim 1, wherein the monitoring terminal comprises a communication module, a database module and a display module;
the communication module is used for communicating with the wireless sensor node;
the database module is used for storing the monitoring data sent by the cluster head node;
the display module is used for displaying the monitoring data.
9. A sewage treatment monitoring method according to claim 3, wherein the calculation function of the communication capacity value is:
cumcap v enelf is the communication capability value of the wireless sensor node v v Eneful is the residual electric quantity of the wireless sensor node v v An antenna for full power of the wireless sensor node v v For other wireless sensor nodes having a distance to the wireless sensor node v smaller than the maximum communication radius of the wireless sensor node vThe number, mxanthnum, represents a preset number; locall v For the location coefficient of the wireless sensor node v, strbvs is the maximum value of the location coefficient,midistlocl v a minimum value indicating a distance between the wireless sensor node v and the center of the wastewater treatment tank, mxdistlocl indicating a maximum value of a distance between the wireless sensor node in the wastewater treatment area and the center of the wastewater treatment tank, frac indicating a preset position coefficient, s 1 、s 2 、s 3 Respectively representing the preset residual electric quantity weight, coverage area weight and position coefficient weight s 1 、s 2 、s 3 The sum between these three variables is 1.
10. A sewage treatment monitoring system, including monitor terminal and wireless sensor node and the control gateway of being set up in sewage treatment plant's sewage treatment area, at its characterized in that:
the monitoring gateway is used for clustering the wireless sensor nodes, and dividing the wireless sensor nodes into member nodes and cluster head nodes;
the member nodes are used for acquiring monitoring data of the sewage treatment area and sending the monitoring data to the corresponding cluster head nodes;
the cluster head node is used for sending the monitoring data acquired by the member node to the monitoring gateway;
the monitoring gateway is used for sending the monitoring data to the monitoring terminal;
the monitoring terminal is used for displaying the monitoring data;
the wireless sensor nodes are clustered by the monitoring gateway, and the wireless sensor nodes are divided into member nodes and cluster head nodes, and the wireless sensor nodes comprise:
partitioning the sewage treatment area into a plurality of monitoring areas;
calculating the communication capacity value of the wireless sensor node in each monitoring area respectively;
taking the first Q wireless sensor nodes with the largest communication capacity value in the monitoring area as cluster head nodes, and taking the rest wireless sensor nodes in the monitoring area as member nodes;
dividing the wastewater treatment area into a plurality of monitoring areas, comprising:
obtaining the maximum value, the minimum value, the maximum value and the minimum value of the abscissa and the ordinate of the sewage treatment area;
acquiring a middle area, wherein the position range of the middle area is as follows:
hzmix is less than or equal to a and less than or equal to hzmax, and hzmix is less than or equal to b and less than or equal to hzmix;
a and b represent the abscissa and ordinate, respectively, of the point in the intermediate zone, hzmix represents the minimum value of the abscissa of the sewage treatment zone, hzmax represents the maximum value of the abscissa of the sewage treatment zone, hzmix represents the minimum value of the ordinate of the sewage treatment zone, hzmix represents the maximum value of the ordinate of the sewage treatment zone;
the intermediate area is processed as follows:
dividing the middle area into N monitoring areas with the same area, and storing the obtained monitoring areas into a calculation set;
step two, obtaining a distribution coefficient of each monitoring area in the calculation set;
thirdly, storing a monitoring area with the distribution coefficient being larger than a set distribution coefficient threshold value into a middle set, and storing a monitoring area with the distribution coefficient being smaller than or equal to the set distribution coefficient threshold value into a result set;
fourth, deleting all elements in the calculation set so that the calculation set becomes an empty set;
fifthly, judging whether the number of elements in the middle set is larger than 0, if so, entering a sixth step, and if not, taking the elements in the result set as a finally obtained monitoring area;
step six, dividing each element in the middle set into N monitoring areas with the same area, storing the obtained monitoring areas into a calculation set, and entering a step two;
the calculation function of the distribution coefficient is:
dtrbcoef k representing the distribution coefficient of the monitored area k,representing the weighting parameters +.>length k And width k Respectively the length and width of the monitored area k, midarea represents the standard size of the monitored area, monreg represents the set of wireless sensor nodes in the monitored area k, freq v Represents the data acquisition frequency of the wireless sensor node v, nmreg represents the number of wireless sensor nodes in the monitored area k, freqvran represents the set data acquisition frequency variance.
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