CN106559731A - A kind of sewage monitoring wireless sensor network - Google Patents
A kind of sewage monitoring wireless sensor network Download PDFInfo
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- CN106559731A CN106559731A CN201510616525.2A CN201510616525A CN106559731A CN 106559731 A CN106559731 A CN 106559731A CN 201510616525 A CN201510616525 A CN 201510616525A CN 106559731 A CN106559731 A CN 106559731A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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- Arrangements For Transmission Of Measured Signals (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of sewage monitoring wireless sensor network, including multiple wastewater parameters monitoring systems, multiple sewage disposal process monitoring systems and remote server, wastewater parameters monitoring system collects the wireless sensor network constituted by node by several collection sensor nodes and a collection, each sewage disposal process monitoring system includes a presence server, and several upstream sensor networks for being communicated with presence server, and several downstream sensor networks for being communicated with presence server；The wireless sensor network that upstream sensor network is made up of several monitoring sensor nodes and a monitoring aggregation node, downstream sensor network perform the wireless sensor network that aggregation node is constituted by several execution sensor nodes and one；The presence server of each sewage disposal process monitoring system and remote server, and the collection aggregation node of at least one wastewater parameters monitoring system communicated.
Description
Technical field
The present invention relates to a kind of sewage monitoring wireless sensor network of field of environment protection.
Background technology
Water environment monitoring is the basis of environmental conservation, its objective is to provide science decision for environmental conservation
Foundation.When river, lake etc. happen suddenly water environment pollution accident, existing conventional meanses cannot be realized
Rapidly, accurately, dynamically monitoring and forecast, so that being difficult to quickly, rightly make a policy, adopts
Wireless sensor technology and wireless sensor network find environmental accident in time, and then formulate urgent countermeasure
It is the developing direction of water environment monitoring.
Wireless sensor network is, after the Internet, will to produce weight to 21 century human life style
The big IT hot spot technologies for affecting.Wireless sensor network is having by a large amount of inexpensive, low-power consumption
The autonomous networkses system that the wireless sensor node of sensing, calculating and communication capacity is constituted, can be according to ring
Border independently completes various monitoring tasks.At present, wireless sensor network is obtained in environmental monitoring
It is increasing to apply, as tracked the migration of migratory bird and insecticide, monitoring biological habitat, grind
Study carefully impact of the environmental change to crops, Forest Fire Alarm, monitoring air and the content of soil etc..
At present, in terms of wireless sensor network research certain science accumulates and study both at home and abroad
Achievement, but still there is a problem of more, still there is certain gap apart from practical.And in sewage monitoring
Need to solve with wireless sensor network, even more there are problems：1) sewage monitoring is passed with wireless
The network architecture of sensor network；2) ad hoc network of sewage monitoring wireless sensor network；3)
Wireless sensor network node with MANET function；4) sewage monitoring wireless sensor network
Time synchronized with positioning.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided a kind of sewage monitoring is with wirelessly
Sensor network, which can reduce clock jitter during transceiving data, save energy, improve positioning accurate
Degree, the network delay for shortening node.
A kind of technical scheme for realizing above-mentioned purpose is：A kind of sewage monitoring wireless sensor network,
Including multiple wastewater parameters monitoring systems, multiple sewage disposal process monitoring systems and remote server,
The wastewater parameters monitoring system is collected by several collection sensor nodes and a collection
The wireless sensor network constituted by node, for being monitored to the physical and chemical parameter of sewage；
The sewage disposal process monitoring system includes a presence server, and several with it is described
The upstream sensor network communicated by presence server, and several are carried out with the presence server
The downstream sensor network of communication；
The upstream sensor network is to converge section by several monitoring sensor nodes and a monitoring
One wireless sensor network of point composition, for supervising to the operational factor of sewage disposal device
Survey；
The downstream sensor network is to be performed to converge section by several execution sensor nodes and one
One wireless sensor network of point composition, for being adjusted to the operational factor of sewage disposal device
And setting；
The presence server of each sewage disposal process monitoring system is joined with least one sewage
The collection aggregation node of monitoring system is counted, and the remote server is communicated.
Further, the collection sensor node, monitoring sensor node and the execution sensor
Node includes the sensor that is sequentially connected, signal conditioning circuit, A/D converter, microprocessor and
The power management module of radio-frequency module and the connection microprocessor.
Further, the microprocessor and the radio-frequency module pass through CC2430 integrated chips.
Further, the collection sensor node, monitoring sensor node and described perform sensing
Solar energy back-up source module is equipped with device node.
Further, on the collection sensor node sensor selected form temperature sensor, pH value
Sensor, index sensor, conductivity sensor, dissolved oxygen content sensor.
Further, the MAC protocol of the sewage monitoring wireless sensor network is used
802.15.4 standard.
Further, the Routing Protocol of the sewage monitoring wireless sensor network is using towards QoS's
Cluster-Tree adaptive routing protocols.
Further, the node locating of the sewage monitoring wireless sensor network employs band confidence level
Two step location algorithms.
Further, the employing of the sewage monitoring wireless sensor network is based on clustered network structure
TPSN Time synchronization algorithms.
A kind of technical scheme of sewage monitoring wireless sensor network of the present invention is employed, including
Multiple wastewater parameters monitoring systems, multiple sewage disposal process monitoring systems and remote server, it is described
Wastewater parameters monitoring system is to collect node institute group by several collection sensor nodes and a collection
Into a wireless sensor network, for being monitored to the physical and chemical parameter of sewage；At the sewage
Reason process monitoring system includes a presence server, and several are carried out with the presence server
The upstream sensor network of communication, and several descending sensings for being communicated with the presence server
Device network；The upstream sensor network is converged by several monitoring sensor nodes and a monitoring
One wireless sensor network of node composition, for supervising to the operational factor of sewage disposal device
Survey；The downstream sensor network is by several execution sensor nodes and an execution aggregation node
One wireless sensor network of composition, for being adjusted to the operational factor of sewage disposal device and
Arrange；The presence server of each sewage disposal process monitoring system is joined with least one sewage
The collection aggregation node of monitoring system is counted, and the remote server is communicated.Its technique effect
It is：Which can reduce clock jitter during transceiving data, save energy, improve positioning precision, shorten
The network delay of node.
Description of the drawings
Fig. 1 is a kind of structural representation of sewage monitoring wireless sensor network of the present invention.
Fig. 2 is a kind of collection sensor node of sewage monitoring wireless sensor network of the present invention
Structural representation.
Fig. 3 is a kind of monitoring sensor node of sewage monitoring wireless sensor network of the present invention
Structural representation.
Fig. 4 is a kind of execution sensor node of sewage monitoring wireless sensor network of the present invention
Structural representation.
Specific embodiment
Refer to Fig. 1, the present inventor is in order to be able to preferably carrying out to technical scheme
Understand, below by specifically embodiment, and combine accompanying drawing and be described in detail：
A kind of sewage monitoring wireless sensor network of the present invention includes multiple wastewater parameters monitoring systems
System 1 and multiple sewage disposal process monitoring systems 2.A kind of sewage monitoring wireless sensing of the present invention
It is the low rate of newest release, low that the reason for device network is using zigBee networks is ZigBee technology
Power consumption wireless sensor communication technology, is particularly suitable for long-term unmanned occasion, therefore wastewater parameters prison
Examining system 1 and sewage disposal process monitoring system 2 set up the hierarchy with ZigBee as core.
Each wastewater parameters monitoring system 1 is by several collection sensor nodes 11 and a collection
Collect the wireless sensor network constituted by node 12, for the every physical and chemical parameter to sewage
It is monitored.
Each sewage disposal process monitoring system 2 includes a presence server 23, and takes with scene
Several upstream sensor networks 21 that business device 23 is communicated, and led to presence server 23
Several downstream sensor networks 22 of letter.Wherein upstream sensor network 21 is by several monitorings
The wireless sensor network of sensor node 211 and a monitoring composition of aggregation node 212, for right
The operational factor of sewage disposal device is monitored.Downstream sensor network 22 is by several execution
Sensor node 221 and a wireless sensor network for performing the composition of aggregation node 222, for right
The operational factor of sewage disposal device is adjusted and arranges, and such as controls live grid sewage-removing machine, scrapes
Sand machine, squeezer, submersible agitator actuator etc..Each sewage disposal process monitoring system 2
Presence server 23 is all carried out with the collection aggregation node 12 of at least one wastewater parameters monitoring system 1
Communication.The presence server 23 of each sewage disposal process monitoring system 2 also with remote server 3
Communicated.
Wherein gather sensor node 11, perform sensor node 221 and monitoring sensor node 211,
On-site parameters monitor layer, collection aggregation node 12 are respectively positioned on, aggregation node 212 are monitored, is performed convergence
Node 222 and presence server 23 are respectively positioned on aggregation node layer, and remote server 3 is located at long-range prison
Control server layer.
A sub-regions of the wastewater parameters monitoring system 1 near each water inlet and outlet, adopt
Wireless sensor network based on collection sensor node 11, enters line number by gathering aggregation node 12
According to presence server 23 is transferred to, the hierarchy based on collection aggregation node 12, i.e. cluster is formed.
Natural distributed treatment ability is had based on the hierarchy of cluster, cluster head, i.e. collection converge section
Point 12 is distributed treatment center, each cluster member, that is, gather sensor node 11 all monitoring
Initial data, or the simply dealt initial datas of Jing pass to collection aggregation node 12, gather aggregation node
12 will transmit after data fusion to presence server 23 or remote server 3.
By ZigBee wireless technologys or WLAN technologies, in the dirt of each water inlet or outlet
Water monitoring parameter, is transferred directly to correspondence by gathering the ZigBee module on sensor node 11
Collection aggregation node 12, it is corresponding collection aggregation node 12 by the data after process pass through WLAN moulds
Block or CDMA module are sent to presence server 23 and remote server 3.
Collection sensor node 11 is mainly used in the following physical and chemical parameter for monitoring sewage, pH value, chemistry
Oxygen demand, ammonia-nitrogen content, total phosphorus content, dissolved oxygen content etc..
Collection sensor node 11 includes：The parameter acquisition sensor 11a being sequentially connected, the first signal
Modulate circuit 11b, the first A/D converter 11c, first microprocessor 11d and the first radio-frequency module
11e, and the first power management module 11f of connection first microprocessor 11d.Collection sensor
11a can be temperature sensor, pH value sensor, index sensor, conductivity sensor, dissolving
Oxygen level sensor etc..
11 transmission power of collection sensor node is 0～3.6dbm, and communication distance is 30～70 meters,
Through power amplification, communication distance is up to 1000 meters or so.Collection sensor node 11 has energy
Monitoring and link-quality indicate function, according to these monitoring results, can adjust automatically node transmitting work(
Rate, under conditions of communication link quality is ensured, reduces energy consumption to greatest extent.Wherein first micro- place
On the integrated CC2430 chips of reason device 11d and the first radio-frequency module 11e, the chip is for WSN
The chip of Zigbee protocol using in, incorporates ZigBee radio frequencies, internal memory work(on CC2430 chips
Energy.
In order to further break through the restriction powered outside collection sensor node Room 11, the first power management
While module 11f adopts dry cell power supply, also it is integrated with solar energy back-up source module (in figure not
Show), the collection supply energy of sensor node 11 can be given using solar energy back-up source.
Equally, at the monitoring sewage of monitoring sensor node 211 in sewage disposal process monitoring system 2
The operational factor of reason equipment is monitored, and data are passed to scene by monitoring aggregation node 212
Server 23, and result is passed to into corresponding execution sensor by performing aggregation node 222
Node 221, makes remote server 3 obtain related sub-regions wastewater parameters and field control process, right
Wastewater parameters data and process data are processed and are analyzed, and monitor the change of water quality condition, real
The now effective control to scene and management, and accident and the environment such as pollution are drastically changed affected
Water environment situation Realtime Alerts；Remote server 3 is realized round-the-clock to sewage by Internet
Real-time monitoring.
Monitoring sensor node 211 includes：The monitoring sensor 211a being sequentially connected, secondary signal are adjusted
Reason circuit 211b, the second A/D converter 211c, the second microprocessor 211d, the second radio-frequency module
211e, and second source management module 211f of the second microprocessor 211d of connection.
Performing sensor node 221 includes：The execution sensor 221a being sequentially connected, the 3rd signal are adjusted
Reason circuit 221b, the 3rd A/D converter 221c, the 3rd microprocessor 221d, the 3rd radio-frequency module
221e, and connection the 3rd microprocessor 221d and the 3rd 1 power management module 221f.
Monitoring sensor node 211 and execution sensor node 221 also use and gather sensor section
11 same designs of point.
Collection sensor node 11, monitoring sensor node 211 and execution sensor node 221 are designed
Into a micro embedded system, the basal layer for constituting wireless sensor network supports platform, and takes into account
Sensing terminal and router dual-use function, in addition to carrying out local information and collecting with data processing, will also
Carry out forwarding, storage, management and fusion of data etc. to process and complete with other wireless sensers collaborations
Task.
Collection aggregation node 11, monitoring aggregation node 212 and execution aggregation node 222：There is provided wireless
The data access function of sensor, is passed with reducing collection sensor node 11, monitoring with coordination function
The energy expenditure of sensor node 211 and execution sensor node 231；With sensor node will be gathered
11st, monitoring sensor node 211 and perform 221 data forwarding of sensor node to remote server 3,
Forwarding is come the control data of remote server 3 of acting on one's own to correspondence collection sensor node 11, monitoring sensing
Device node 211 and execution sensor node 221, realize the interactive information with remote server 3.
In a kind of sewage monitoring wireless sensor network of the present invention, MAC protocol is employed
802.15.4 standard, its object is to：By dynamic dispatching mechanism is introduced in superframe structure, concede
Collection sensor node 11, monitoring sensor node 211, execution sensor node 221, collection converge
Poly- node 12, monitoring aggregation node 212, the execution root in the Frame for sending out of aggregation node 222
Channel reservation request is carried according to accumulation situation, and dynamic dispatching is implemented in request accordingly, can cause MAC
Agreement has good loaded self-adaptive, i.e., when loading relatively low, calculated using time slot CSMA/CA
Method control channel is accessed, and when load 12 is to be raised, agreement automatically switches to the channel access side based on scheduling
Formula, so as to efficiently avoid the agreement caused using high collision probability during competition mechanism under higher load
Hydraulic performance decline, improves the protocol capabilities under high capacity.
In a kind of sewage monitoring wireless sensor network of the present invention, Routing Protocol is using towards QoS
Cluster-Tree adaptive routing protocols, select route topological based on cost tree, at two kinds
In the case of select different cost functions to set up routing tree, different cost function to energy consumption, time delay and
The evaluation indexes such as link-quality are adaptively cut according to the demand of application scenarios with different weights
Change, Cluster-Tree routes can automatically switch to tree route in the case where cost tree is failed, and save
The slightly process such as route discovery, Route establishment, route maintenance, for wireless network route provide it is dual
Pledge system.
In a kind of sewage monitoring wireless sensor network of the present invention, node, including presence server
3rd, sensor node 11 is gathered, collection aggregation node 12, monitoring sensor node 211, monitoring converge
Poly- node 212, the positioning for performing aggregation node 221 and performing sensor node 222 employ band and put
Two step location algorithms of reliability, the i.e. iteration that the position rough estimate of DV-Hop positioning and confidence level rise
Calculating is accurately positioned.The position rough estimate of unknown node is carried out using DV-Hop first：Unknown node meter
The minimum hop count of beacon is calculated, then according to the minimum hop count between known beacon, correspondence is often jumped in rough estimate
Distance, so as to calculate target to the distance of beacon, then the seat that rough positions are calculated using three side algorithms
Mark, and give one initial confidence level of value.After all node rough estimates go out self-position, according to TOA
Commercial measurement node and beacon and the spacing of other nodes, then sat with several neighbours' unknown points, Beacon Point
The distance of mark and several neighbours' unknown points and this node initiates iteration from beacon week mid-side node as input
Calculating process is accurately positioned, and is calculated, is updated own coordinate using three side algorithms again, and is heightened
Node location confidence level.Other sections in net are updated using the new high confidence level coordinate figure of the node again subsequently
The coordinate of point, successive ignition finally complete being accurately positioned for all nodes.
In a kind of sewage monitoring wireless sensor network of the present invention, time synchronized is using based on tufted
The TPSN Time synchronization algorithms of network structure, the algorithm can be divided into two stages, i.e., classification with it is synchronous
Stage.Classification is carried out when network topology is formed.When initial, except root node, i.e. presence server 3
Outward, the class value of all other node is infinity, and by root node broadcast, one includes sender's level
The packet of other information, wherein root node rank are 0, initiate classification process.Neighbours' section of root node
Point is calculated and is compared after receiving the packet, if the class value of oneself is included in being more than packet
Class value, then the rank of oneself is set to the class value+1 of sender, i.e. root node, number is updated
After the level information value in bag, continue to broadcast the packet；The packet is abandoned otherwise.Each section
Point, including root node all processed according to the method described above, all nodes in final whole network are all
An appropriate class value is obtained, so as to obtain the logical level relation between all nodes.Classification
After the completion of stage, i.e., into synchronous phase.In synchronous phase, two-way between node, is periodically carried out
Letter, every grade of node respectively with its higher level's node switching information, so as to realize the time with its superior node
Synchronously, all node times of last the whole network are synchronized to network root.Passed with wireless in sewage monitoring
In sensor network, interstitial content is larger, in order to reduce synchronous expense, by using TPSN synchronizations
Agreement, row clock estimation of deviation of going forward side by side reduce the activity time window of node transceiving data, save energy.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to
The bright present invention, and be not used as limitation of the invention, as long as in the spirit of the present invention
Interior, the change, modification to embodiment described above will all fall in the range of claims of the present invention.
Claims (9)
1. it is a kind of sewage monitoring wireless sensor network, including multiple wastewater parameters monitoring systems, many
Individual sewage disposal process monitoring system and remote server, it is characterised in that：
The wastewater parameters monitoring system is collected by several collection sensor nodes and a collection
The wireless sensor network constituted by node, for being monitored to the physical and chemical parameter of sewage；
The sewage disposal process monitoring system includes a presence server, and several with it is described
The upstream sensor network communicated by presence server, and several are carried out with the presence server
The downstream sensor network of communication；
The upstream sensor network is to converge section by several monitoring sensor nodes and a monitoring
One wireless sensor network of point composition, for supervising to the operational factor of sewage disposal device
Survey；
The downstream sensor network is to be performed to converge section by several execution sensor nodes and one
One wireless sensor network of point composition, for being adjusted to the operational factor of sewage disposal device
And setting；
The presence server of each sewage disposal process monitoring system is joined with least one sewage
The collection aggregation node of monitoring system is counted, and the remote server is communicated.
2. a kind of sewage monitoring wireless sensor network according to claim 1, its feature
It is：The collection sensor node, monitoring sensor node and the execution sensor node are wrapped
Include the sensor being sequentially connected, signal conditioning circuit, A/D converter, microprocessor and radio-frequency module
And connect the power management module of the microprocessor.
3. a kind of sewage monitoring wireless sensor network according to claim 2, its feature
It is：The microprocessor and the radio-frequency module pass through CC2430 integrated chips.
4. a kind of sewage monitoring wireless sensor network according to claim 2, its feature
It is：On the collection sensor node, monitoring sensor node and the execution sensor node
It is provided with solar energy back-up source module.
5. a kind of sewage monitoring wireless sensor network according to claim 2, its feature
It is：Sensor selected form temperature sensor, pH value sensor, folding on the collection sensor node
Penetrate rate sensor, conductivity sensor, dissolved oxygen content sensor.
6. a kind of sewage monitoring wireless sensor network according to claim 1, its feature
It is：The MAC protocol of the sewage monitoring wireless sensor network uses 802.15.4 standards.
7. a kind of sewage monitoring wireless sensor network according to claim 1, its feature
It is：The Routing Protocol of the sewage monitoring wireless sensor network is using towards QoS's
Cluster-Tree adaptive routing protocols.
8. a kind of sewage monitoring wireless sensor network according to claim 1, its feature
It is：It is fixed that the node locating of the sewage monitoring wireless sensor network employs two steps with confidence level
Position algorithm.
9. a kind of sewage monitoring wireless sensor network according to claim 8, its feature
It is：During TPSN of the employing of the sewage monitoring wireless sensor network based on clustered network structure
Between synchronized algorithm.
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| CN116679024B (en) * | 2023-06-16 | 2023-12-22 | 西藏净源环保工程有限公司 | Sewage treatment system |
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