CN107424415A - A kind of intelligent traffic monitoring system - Google Patents
A kind of intelligent traffic monitoring system Download PDFInfo
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- CN107424415A CN107424415A CN201710453929.3A CN201710453929A CN107424415A CN 107424415 A CN107424415 A CN 107424415A CN 201710453929 A CN201710453929 A CN 201710453929A CN 107424415 A CN107424415 A CN 107424415A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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Abstract
The invention provides a kind of intelligent traffic monitoring system, including traffic flow monitoring module, background server and user terminal based on wireless sensor network；The traffic flow monitoring module is used to gather traffic flow monitoring data by wireless sensor network, and traffic flow monitoring data are sent into background server；The background server is used to receive the traffic flow monitoring data, and traffic flow monitoring data are sent into user terminal according to the request of user terminal；The user terminal is used to receive user instruction, sends traffic flow monitoring request of data, receives traffic flow monitoring data and is shown.The present invention utilizes wireless sensor network technology so that user can obtain information of vehicle flowrate on road in real time, and construction maintenance is convenient, and the real-time monitoring of special bus traffic conditions can be achieved.
Description
Technical field
The present invention relates to Traffic monitoring field, and in particular to a kind of intelligent traffic monitoring system.
Background technology
As cities and towns vehicle is more and more, traffic jam phenomenon is increasingly severe, and urban transportation monitoring system is in city car
Important function is served in uninterrupted current.The construction of magnitude of traffic flow acquisition system in correlation technique is number with safeguarding
It is tired, and can not accomplish to the real-time collection of the magnitude of traffic flow.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of intelligent traffic monitoring system.
The purpose of the present invention is realized using following technical scheme：
Provide a kind of intelligent traffic monitoring system, including the traffic flow monitoring module based on wireless sensor network,
Background server and user terminal；The traffic flow monitoring module is used to gather the magnitude of traffic flow by wireless sensor network
Monitoring Data, and traffic flow monitoring data are sent to background server；The background server is used to receive the traffic
Flow monitoring data, and traffic flow monitoring data are sent to by user terminal according to the request of user terminal；The user is whole
Hold for receiving user instruction, send traffic flow monitoring request of data, receive traffic flow monitoring data and shown.
Beneficial effects of the present invention are：Utilize wireless sensor network technology so that user can obtain road wagon flow in real time
Information is measured, construction maintenance is convenient, and the real-time monitoring of special bus traffic conditions can be achieved.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
The structured flowchart of Fig. 1 present invention；
Fig. 2 is the block diagram representation of user terminal of the present invention.
Reference：
Traffic flow monitoring module 1, background server 2, user terminal 3, data memory module 4, data disaply moudle 5.
Embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, Fig. 2, the real-time detection magnitude of traffic flow system based on wireless sensor network of the present embodiment offer, bag
Include the traffic flow monitoring module 1 based on wireless sensor network, background server 2 and user terminal 3；The magnitude of traffic flow
Monitoring modular 1 is used to gather traffic flow monitoring data by wireless sensor network, and traffic flow monitoring data are sent
To background server 2；The background server 2 is used to receive the traffic flow monitoring data, and asking according to user terminal
Ask and traffic flow monitoring data are sent to user terminal 3；The user terminal 3 is used to receive user instruction, sends traffic flow
Monitoring Data request is measured, traffic flow monitoring data is received and is shown.
Preferably, the user terminal 3 includes data memory module 4 and data disaply moudle 5, wherein data memory module
4 are used to store the traffic flow monitoring data received, and data disaply moudle 5 is used to show traffic flow monitoring data.
Preferably, the traffic flow monitoring module 1 includes a mobile sink node and multiple traffic flow monitoring sections
Point, traffic flow monitoring node is fixed and is deployed in the traffic flow monitoring region of setting, in the Data Collection of each round, is moved
Dynamic aggregation node returns initially from initial position after collecting the traffic flow monitoring data of traffic flow monitoring node successively
Position, prepare next round Data Collection.
The above embodiment of the present invention utilizes wireless sensor network technology so that user can obtain road traffic letter in real time
Breath, construction maintenance is convenient, and the real-time monitoring of special bus traffic conditions can be achieved.
Preferably, mobile sink node collects the traffic flow monitoring data of traffic flow monitoring node successively, specifically holds
OK：
(1) preferred reference mode selection is carried out, if WiI-th of traffic flow monitoring node is represented, works as WiMeet following condition
When, by WiIt is elected to be preferred reference mode：
In formula,Represent WiNeighbor node number, E (Wi,W0) represent WiTo mobile sink node W0Initial position
Distance, EDFor the distance threshold of setting；
WijRepresent WiJ-th of neighbor node,Represent WijNeighbor node number, E (Wij,W0) represent WijTo movement
Aggregation node W0Initial position distance；
(2) other traffic flow monitoring nodes determine the distance between all preferred reference modes in communication range,
Response message is sent to apart from preferred reference mode corresponding to minimum value, the preferred reference mode will send the traffic of response message
Flow monitoring vertex ticks is recorded with expanding the distance between node to expand node；
(3) mobile sink node is linearly moved to each position preferably where reference mode from the near to the remote, according to setting
Time stop, until has collected traffic flow monitoring data, now preferred reference mode and it is corresponding expand node by itself
Traffic flow monitoring data be sent to mobile sink node.
In this preferred embodiment, the position that mobile sink node need to only be linearly moved to each preferably reference mode carries out phase
The collection of traffic flow monitoring data is closed, the position without being moved to each traffic flow monitoring node carries out data receipts
Collection, motion path is relative to be shortened, and saves the overall energy consumption that mobile sink node carries out traffic flow monitoring Data Collection, relative to carry
The high transmitting-receiving efficiency of traffic flow monitoring data.
Preferably, the traffic flow monitoring data of itself are sent to mobile sink node by described expansion node, specifically
Including：
(1) mobile sink node is linearly moved to the position where preferred reference mode, preferred to this in communication range
Reference mode and corresponding expansion node send the instruction of traffic flow monitoring Data Collection, expand node and receive traffic flow monitoring
After Data Collection instruction, the expansion node of down hop sends signal, and is sent and handed over to mobile sink node using single-hop mode
Through-current capacity Monitoring Data, the expansion node for only receiving signal determine the preferred value of remaining expansion node in the range of self communication,
And the maximum expansion node of preferred value is selected as relay forwarding node, if the first relay forwarding node selected is positioned at shifting
In the communication range of dynamic aggregation node, then the node of expanding for only receiving signal will friendship by first described relay forwarding node
Through-current capacity Monitoring Data is sent to mobile sink node, the calculation formula of wherein preferred value：
In formula, WμvRepresent v-th of expansion node in the communication range of the μ expansion for only receiving signal nodes, Y
(Wμν) represent WμvPreferred value, E (Wμv,Wy) represent WμvTo preferred reference mode WyDistance, EDFor the distance threshold of setting,For WμvResidual energy value, SDFor the energy value threshold value of setting,For WμvWith the μ expansion sections for only receiving signal
Packet loss between point, HDFor the packet loss threshold value of setting；
(2) if the relay forwarding node selected is not in the communication range of mobile sink node, in described first
Select next relay forwarding node according to (1) after forward node, so as to the described expansion node for only receiving signal pass through it is more
Individual relay forwarding node sends traffic flow monitoring data to mobile sink node.
In this preferred embodiment, when the traffic flow monitoring data of itself are sent to mobile sink node by expansion node,
By the way of single-hop and multi-hop are combined, wherein the expansion node in mobile sink node communication range uses single-hop side
Formula sends traffic flow monitoring data to mobile sink node, and remaining expands node by multiple relay forwarding nodes by traffic
Flow monitoring data are sent to mobile sink node, so as to ensure that the traffic flow monitoring data of all expansion nodes can
It is enough to send to mobile sink node, ensure reliability of the intelligent traffic monitoring system in terms of traffic flow monitoring data transmit-receive；
In addition, the relay forwarding node selected every time changes according to the change of traffic flow monitoring data collection time,
Expansion node can be avoided to expand in nodes in others to repeat to select same expansion node to carry out as relay forwarding node
Data forwarding, each energy for expanding node of relative equilibrium, it can further save the transmitting-receiving energy of traffic flow monitoring data
Consumption.
Preferably, if WxX-th of preferred reference mode is represented,Represent mobile sink node in WxThe position at place
Residence time, set according to following equation
In formula,Represent WxThe number for the expansion node having,Represent WxIt is not at moving in the expansion node having
Expansion interstitial content in the communication range of aggregation node, WξRepresent WxExpanding for having is in mobile sink node in node
The ξ expansion node in communication range, WfRepresent WxThe communication range of mobile sink node is not in the expansion node having
F-th interior of expansion node,Represent WfTraffic flow monitoring data are sent to the relay forwarding section needed for mobile sink node
The number of point, E (Wξ,Wx) represent WξTo WxThe distance between, E (Wf,Wx) represent WfTo WxThe distance between, EφFor setting away from
From threshold value, Q1、Q2For the unit time value of setting, INT [] is bracket function.
This preferred embodiment sets the calculation formula of the residence time of mobile sink node, and it considers expand node
Concrete condition, the different mobile sink node residence times is set to different preferred reference modes, can ensure hand over
The time loss and energy expenditure of traffic flow monitoring Data Collection are reduced while the reliability that through-current capacity Monitoring Data is collected,
The flexibility of traffic flow monitoring Data Collection is high.
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 scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (6)
1. a kind of intelligent traffic monitoring system, it is characterized in that, including the traffic flow monitoring module based on wireless sensor network,
Background server and user terminal；The traffic flow monitoring module is used to gather the magnitude of traffic flow by wireless sensor network
Monitoring Data, and traffic flow monitoring data are sent to background server；The background server is used to receive the traffic
Flow monitoring data, and traffic flow monitoring data are sent to by user terminal according to the request of user terminal；The user is whole
Hold for receiving user instruction, send traffic flow monitoring request of data, receive traffic flow monitoring data and shown.
2. a kind of intelligent traffic monitoring system according to claim 1, it is characterized in that, the user terminal is deposited including data
Module and data disaply moudle are stored up, wherein data memory module is used to store the traffic flow monitoring data received, and data are shown
Module is used to show traffic flow monitoring data.
3. a kind of intelligent traffic monitoring system according to claim 1, it is characterized in that, the traffic flow monitoring module bag
A mobile sink node and multiple traffic flow monitoring nodes are included, traffic flow monitoring node fixes the traffic for being deployed in setting
In flux monitoring region, in the Data Collection of each round, mobile sink node collects traffic flow successively from initial position
Initial position is returned after measuring the traffic flow monitoring data of monitoring node, prepares next round Data Collection.
4. a kind of intelligent traffic monitoring system according to claim 3, it is characterized in that, mobile sink node collects friendship successively
The traffic flow monitoring data of through-current capacity monitoring node are specific to perform：
(1) preferred reference mode selection is carried out, if WiI-th of traffic flow monitoring node is represented, works as WiWhen meeting following condition,
By WiIt is elected to be preferred reference mode：
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In formula,Represent WiNeighbor node number, E (Wi,W0) represent WiTo mobile sink node W0Initial position away from
From EDFor the distance threshold of setting；
WijRepresent WiJ-th of neighbor node,Represent WijNeighbor node number, E (Wij,W0) represent WijTo mobile sink
Node W0Initial position distance；
(2) other traffic flow monitoring nodes determine with all preferably the distance between reference modes in communication range, to away from
Response message is sent from preferred reference mode corresponding to minimum value, the preferred reference mode will send the magnitude of traffic flow of response message
Monitoring node is recorded with expanding the distance between node labeled as expansion node；
(3) mobile sink node is linearly moved to each position preferably where reference mode from the near to the remote, according to setting when
Between stop, until has collected traffic flow monitoring data, now preferred reference mode and corresponding node of expanding are by the friendship of itself
Through-current capacity Monitoring Data is sent to mobile sink node.
5. a kind of intelligent traffic monitoring system according to claim 4, it is characterized in that, it is described expand node by itself
Traffic flow monitoring data are sent to mobile sink node, specifically include：
(1) mobile sink node is linearly moved to the position where preferred reference mode, is preferably referred to this in communication range
Node and corresponding expansion node send the instruction of traffic flow monitoring Data Collection, expand node and receive traffic flow monitoring data
After collecting instruction, the expansion node of down hop sends signal, and sends traffic flow to mobile sink node using single-hop mode
Monitoring Data is measured, the expansion node for only receiving signal determines the preferred value of remaining expansion node in the range of self communication, and selects
The maximum expansion node of preferred value is selected as relay forwarding node, if the first relay forwarding node selected converges positioned at mobile
In the communication range of poly- node, then only receive signal expands node by first described relay forwarding node by traffic flow
Amount Monitoring Data, which is sent to mobile sink node, the calculation formula of wherein preferred value, is：
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In formula, WμvRepresent v-th of expansion node in the communication range of the μ expansion for only receiving signal nodes, Y (Wμv) represent
WμvPreferred value, E (Wμv,Wy) represent WμνTo preferred reference mode WyDistance, EDFor the distance threshold of setting,For Wμv's
Residual energy value, SDFor the energy value threshold value of setting,For WμνWith the μ packet losses expanded between node for only receiving signal
Rate, HDFor the packet loss threshold value of setting；
(2) if the relay forwarding node selected is not in the communication range of mobile sink node, described first relaying turns
Send out node and select next relay forwarding node according to (1), so as to which the described expansion node for only receiving signal is by multiple
Traffic flow monitoring data are sent to mobile sink node after forward node.
6. a kind of intelligent traffic monitoring system according to claim 5, it is characterized in that, if WxRepresent x-th of preferred reference node
Point,Represent mobile sink node in WxThe residence time of the position at place, set according to following equation
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In formula,Represent WxThe number for the expansion node having,Represent WxMobile sink is not in the expansion node having
Expansion interstitial content in the communication range of node, WξRepresent WxWhat is had expands in node the communication for being in mobile sink node
In the range of the ξ expansion node, WfRepresent WxIt is not in the expansion node having in the communication range of mobile sink node
F-th of expansion node,Represent WfTraffic flow monitoring data are sent to the relay forwarding node needed for mobile sink node
Number, E (Wξ,Wx) represent WξTo WxThe distance between, E (Wf,Wx) represent WfTo WxThe distance between, EφIt is setting apart from threshold
Value, Q1、Q2For the unit time value of setting, INT [] is bracket function.
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Cited By (1)
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