CN108600978A - Atmosphere pollution environment acquisition processing system based on block chain technology - Google Patents
Atmosphere pollution environment acquisition processing system based on block chain technology Download PDFInfo
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- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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Abstract
The present invention provides the atmosphere pollution environment acquisition processing systems based on block chain technology, including headend, wireless sensor network and the data check network with multiple data check nodes composition；The wireless sensor network obtains atmosphere pollution sensing Data Concurrent and send to headend for being monitored to atmosphere pollution；The headend is forwarded to the data check network after the atmosphere pollution sensing data that receive that treated；Multiple data check nodes in the data check network are responsible for that the atmosphere pollution sensing data that the headend forwards are verified and preserved.
Description
Technical field
The present invention relates to air monitering technical fields, and in particular at the atmosphere pollution environment acquisition based on block chain technology
Reason system.
Background technology
In the related technology, mainly have to the method for urban atmospheric pollution monitoring：
(1) conventional method, the i.e. method of manual sampling lab analysis.This method can only obtain air monitoring area
Monitor value in domain in certain time can not be monitored in real time, monitoring result by it is artificial influenced it is very big, meanwhile, work as air
The health of meeting grievous injury monitoring personnel when pollution monitoring region harmful gas concentration is very high；
(2) on-line monitoring popular at present, the automation atmosphere environment supervision equipment for mostly using external import carry out
Monitoring, this monitoring method, although real-time monitoring can be realized, device therefor is complicated, it is expensive, be difficult to safeguard,
Operation cost is high and its working environment is harsh.
Internet of Things needs the various needs of object of monitoring, connection, interaction by various information sensing devices, in real time acquisition
Information is combined the huge network to be formed with internet.The purpose is to realize object and object, object and people, all article and net
The connection of network facilitates identification, management and control.Operation related with data all is being carried out all the time in Internet of things system,
Including links such as data acquisition, data transmission and data storages.Data are easy to be by malicious attack and non-in each link
Method distorts operation.Link is acquired in data, illegal node can pretend to be or attack legitimate node to carry out illegal sensing data
It uploads；In data transmission link, on the one hand it may cause error code since channel quality is bad, on the other hand since data are being transmitted
The data for being easy to be eventually led to by malicious modification upload in the process are illegal etc..Therefore, advance row data check is stored in data
It is essential operation.The purpose of data check be in order to prevent illegal node pretend to be with attack, prevent data and exist
Be maliciously tampered in transmission process, ensure authenticity, legitimacy and the integrality of data.
Invention content
In view of the above-mentioned problems, the present invention provides the atmosphere pollution environment acquisition processing system based on block chain technology.
The purpose of the present invention is realized using following technical scheme：
Provide the atmosphere pollution environment acquisition processing system based on block chain technology, including headend, wireless biography
Sensor network and the data check network formed with multiple data check nodes；The wireless sensor network for pair
Atmosphere pollution is monitored, and is obtained atmosphere pollution sensing Data Concurrent and is sent to headend；The headend is receiving
After to treated atmosphere pollution sensing data, it is forwarded to the data check network；In the data check network
Multiple data check nodes are responsible for that the atmosphere pollution sensing data that the headend forwards are verified and preserved；
Each data check node is block chain node, and multiple data check nodes form a distributed data base；It is described
Wireless sensor network include aggregation node and multiple sensor nodes, sensor node is for acquiring atmosphere pollution sensing number
According to, and the atmosphere pollution of acquisition sensing data are transmitted to aggregation node by parallel multipath routing mode；Aggregation node receives
Atmosphere pollution with processing sensor node output senses data, and atmosphere pollution senses data transmission to data by treated
Transponder.
Further, system further includes authentication center, authentication center to the headend, the sensor node,
Aggregation node and the data check node carry out authorization identifying.
Preferably, sensor node becomes legal sensor node after the authorization identifying by authentication center, and obtains
Unique sensor node digital certificate and symmetric key；Aggregation node becomes legal after the authorization identifying by authentication center
Aggregation node, and obtain unique aggregation node digital certificate and symmetric key；The headend is passing through authentication center
Authorization identifying after, obtain unique headend digital certificate and symmetric key；The data check node is by recognizing
Become valid data check-node after the authorization identifying at card center, and obtains unique public key, private key, data check node number
Certificate and symmetric key；The public key, for by the headend to the data check network and the wireless biography
Sensor Web broadcast；The private key, for by artificially being shared between the data check node.
Beneficial effects of the present invention are：Atmosphere pollution is obtained using wireless sensor network technology and senses data, is not necessarily to cloth
Line uses manpower and material resources sparingly, and scalability is good, is suitble to the large-scale monitoring system of structure, is suitble to promote and apply；Utilize data check
Node completes data check task, and verifying work is distributed to check-node from headend, can overcome due to verification
Task is excessively concentrated and the problems such as the verification efficiency brought is low, speed is slow, propagation delay time is high, vulnerable.
Description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not constitute any limit to the present 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 system structure connection block diagram of an illustrative embodiment of the invention；
Fig. 2 is the structural schematic diagram of the wireless sensor network of an illustrative embodiment of the invention.
Reference numeral：
Headend 1, wireless sensor network 2, data check network 3, sensor node 4, aggregation node 5.
Specific implementation mode
The invention will be further described with the following Examples.
Referring to Fig. 1, Fig. 2, the atmosphere pollution environment acquisition processing system based on block chain technology is present embodiments provided, is wrapped
Include headend 1, wireless sensor network 2 and the data check network 3 formed with multiple data check nodes；It is described
Wireless sensor network 2 for being monitored to atmosphere pollution, obtain atmosphere pollution sensing Data Concurrent and send to data forwarding
Device 1；The headend 1 is forwarded to the data check after the atmosphere pollution sensing data that receive that treated
Network 3；Multiple data check nodes in the data check network 3 are responsible for forwarding the headend 1 described big
Gas pollution sensing data are verified and are preserved；Each data check node is block chain node, multiple data checks
Node forms a distributed data base；The wireless sensor network 2 includes aggregation node 5 and multiple sensor nodes 4,
Sensor node 4 passes through parallel multipath road for acquiring atmosphere pollution sensing data, and by the atmosphere pollution of acquisition sensing data
Aggregation node 5 is transmitted to by mode；The atmosphere pollution that aggregation node 5 receives and processing sensor node 4 exports senses data, and
By treated, atmosphere pollution senses data transmission to headend 1.
Further, system further includes authentication center, and authentication center is to the headend 1, the sensor node
4, aggregation node 5 and the data check node carry out authorization identifying.In one embodiment, sensor node 4 is by recognizing
Become legal sensor node 4 after the authorization identifying at card center, and obtains 4 digital certificate of unique sensor node and symmetrical close
Key；Aggregation node 5 becomes legal aggregation node 5 after the authorization identifying by authentication center, and obtains unique aggregation node 5
Digital certificate and symmetric key；The headend 1 obtains unique data and turns after the authorization identifying by authentication center
Send out 1 digital certificate of device and symmetric key；The data check node becomes legal number after the authorization identifying by authentication center
According to check-node, and obtain unique public key, private key, data check node digital certificate and symmetric key；The public key, is used for
It is broadcasted to the data check network 3 and the wireless sensor network 2 by the headend 1；The private key, is used for
By artificially being shared between the data check node.
The above embodiment of the present invention senses data using 2 technical limit spacing atmosphere pollution of wireless sensor network, without connecting up,
It uses manpower and material resources sparingly, scalability is good, is suitble to the large-scale monitoring system of structure, is suitble to promote and apply；Utilize data check section
It puts to complete data check task, verifying work is distributed to check-node from headend 1, can overcome since verification is appointed
Business is excessively concentrated and the problems such as the verification efficiency brought is low, speed is slow, propagation delay time is high, vulnerable.
In one embodiment, the atmosphere pollution sensing data that sensor node 4 acquires pass through parallel multipath routing mode
It is transmitted to aggregation node 5, specially：Sensor node 4 is using the multiple preferred routed paths determined by aggregation node 5 as air
The path of pollution sensing data transmission, determines the load percentage between each preferred routed path, the atmosphere pollution of acquisition is sensed
Data are distributed to each preferred routed path and are transmitted after dividing according to load percentage.
Atmosphere pollution is sensed in data distribution to a plurality of routed path and is carried out at the same time transmission by the present embodiment, can effectively be carried
The efficiency of high atmosphere pollution sensing data transmission.
In one embodiment, aggregation node 5 determines multiple preferred routed paths of sensor node 4, specifically includes：
(1) for aggregation node 5 in the netinit stage to Web broadcast initialization information, record sends initialization information
Time t0；
(2) sensor node 4 of originating path detection packet is set as source node, and aggregation node 5 receives the more of source node transmission
A path detection packet simultaneously records corresponding receiving time, and source node is obtained to the more of aggregation node 5 by processing path detection packet
Routed path, wherein each path detection packet carries the essential information of a routed path, the essential information includes
Sensor node 4, link-state information and the bandwidth requirement information for including in the routed path；
(3) routed path is screened, the path to being unsatisfactory for primary condition is rejected, according to the bandwidth of source node
The routed path number K that needs estimate needs carries out K mean cluster to the routed path filtered out, will be remaining according to cluster result
Routed path be divided into K cluster, wherein set primary condition as：
In formula, E (i) is the dump energy of the sensor node 4 of dump energy minimum in routed path i, and E (j) is
The dump energy of the sensor node 4 of dump energy minimum in routed path j, n are routed path quantity,For the judgement value function of setting, whenWhen,When When,t1(i) it is
Aggregation node 5 receives the time for the routed path i respective paths detection packet that source node is sent, t0For the transmission initialization information
Time, t1(j) it is that the routed path j respective paths that the reception source node of aggregation node 5 is sent detect the time of packet；
(4) aggregation node 5 selects a routed path as preferred routed path from each cluster, obtains K preferred roads
By path, corresponding preferred routed path information is sent to source node along every preferred routed path and updated by aggregation node 5
The routing table of source node, and then source node obtains K preferred routed paths.
The present embodiment sets the selection mechanism in multirouting path, and aggregation node 5 determines sensing according to the selection mechanism
Multiple preferred routed paths of device node 4, can efficiently reduce the burden of sensor node 4.Wherein, the present embodiment is wanted in determination
When the routed path of cluster, the primary condition for screening routed path is innovatively set, to being unsatisfactory for primary condition
Path is rejected, and can be effectively improved the rate of preferred routed path selection, be reduced the complexity of sub-clustering, wherein being based on energy
With the path detection packet delivery time of both factor formulate the primary condition, enable to that integral energy is more, information transmission
There is the smaller routed path of delay the probability of bigger to be selected as preferred routed path.
In above-mentioned implementation, aggregation node 5 often receives a path detection packet of source node transmission, then obtains a routing
Path.Wherein, path detection packet from source node to aggregation node 5 process, specifically include：Source node is visited to Web broadcast path
Survey packet, receive path detection packet sensor node 4 determine path detection packet in include 4 numbers of sensor node whether be more than
Preset number threshold value, when more than when give up the path detection packet, when being not above by the ID of itself, current remaining with
And the one hop link information between upper hop sensor node 4 is added in the path detection packet of reception, is formed new path and is visited
Packet is surveyed, and the new path detection packet is sent to next-hop section by the nearest neighbor node of chosen distance as next-hop node
Point, until path detection packet reaches aggregation node 5.Wherein, neighbor node refers to being located in 4 communication range of sensor node
Other sensors node 4.
In one embodiment, aggregation node 5 selects a routed path as preferred routed path, tool from each cluster
Body includes：
(1) Quality Weight of each routed path in cluster is calculated：
In formula, Q (a) indicates that the Quality Weight of routed path a, E (a) are the sensing of dump energy minimum in routed path a
The dump energy of device node 4, C (a) are total hop count of routed path a, and N (a) is the sensor node 4 that routed path a includes
Number, N are 4 numbers of sensor node of deployment, EminIt is to meet the energy lower limit that network service quality requirement is set, CmaxFor
The hop count upper limit for meeting network service quality requirement and setting, γ1、γ2For the weight coefficient of setting；
(2) preferred routed path of the maximum routed path of Quality Weight as the cluster is chosen.
The present embodiment innovatively sets the calculation formula of the Quality Weight of routed path, which makes current residual
Energy is more, 4 less routed paths of number of hop count and sensor node have the Quality Weight of bigger, due to hop count and sensing
4 numbers of device node influence link cost value and data transmission period, choose the maximum routed path of Quality Weight as the cluster
Preferred routed path, enable to the preferred routed path of selection have higher routing success rate and atmosphere pollution sensing number
According to transmission rate, and the energy expenditure of atmosphere pollution sensing data transmission can be further saved, to save atmosphere pollution ring
The communications cost of border acquisition processing system.
In one embodiment, it determines the load percentage between each preferred routed path, specifically includes：
(1) the load weights of each preferred routed path are calculated：
In formula, W (b) indicates the load weights of preferred routed path b, and α, β belong to the sensor section on preferred routed path b
Point 4, Ωα,β(t) it is that link α, β transmit the bandwidth that atmosphere pollution senses data occupancy, Ω at current time tα,βFor link α, on β
Maximum bandwidth；
(2) load by the ratio-dependent between the load weights of each preferred routed path between each preferred routed path
Ratio.
Atmosphere pollution sensing data are diverted to a plurality of by the present embodiment according to the load percentage between each preferred routed path
Transmission is carried out at the same time in routed path, can integration networks resource, improve the utilization rate of Internet resources, balanced each routed path
Energy consumption effectively improves the efficiency of atmosphere pollution sensing data transmission, extends to realize the energy consumption balance of each sensor node 4
The service life of wireless sensor network 2.
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 being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as understanding, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (6)
1. the atmosphere pollution environment acquisition processing system based on block chain technology, characterized in that including headend, wireless biography
Sensor network and the data check network formed with multiple data check nodes；The wireless sensor network for pair
Atmosphere pollution is monitored, and is obtained atmosphere pollution sensing Data Concurrent and is sent to headend；The headend is receiving
After to treated atmosphere pollution sensing data, it is forwarded to the data check network；In the data check network
Multiple data check nodes are responsible for that the atmosphere pollution sensing data that the headend forwards are verified and preserved；
Each data check node is block chain node, and multiple data check nodes form a distributed data base；It is described
Wireless sensor network include aggregation node and multiple sensor nodes, sensor node is for acquiring atmosphere pollution sensing number
According to, and the atmosphere pollution of acquisition sensing data are transmitted to aggregation node by parallel multipath routing mode；Aggregation node receives
Atmosphere pollution with processing sensor node output senses data, and atmosphere pollution senses data transmission to data by treated
Transponder.
2. the atmosphere pollution environment acquisition processing system according to claim 1 based on block chain technology, characterized in that also
Including authentication center, authentication center is to the headend, the sensor node, aggregation node and the data check section
Point carries out authorization identifying.
3. the atmosphere pollution environment acquisition processing system according to claim 2 based on block chain technology, characterized in that pass
Sensor node becomes legal sensor node after the authorization identifying by authentication center, and obtains unique sensor node number
Word certificate and symmetric key；Aggregation node becomes legal aggregation node after the authorization identifying by authentication center, and obtains only
One aggregation node digital certificate and symmetric key；The headend obtains after the authorization identifying by authentication center
Unique headend digital certificate and symmetric key；The data check node is after the authorization identifying by authentication center
As valid data check-node, and obtain unique public key, private key, data check node digital certificate and symmetric key；Institute
Public key is stated, for being broadcasted to the data check network and the wireless sensor network by the headend；It is described
Private key, for by artificially being shared between the data check node.
4. according to atmosphere pollution environment acquisition processing system of the claim 1-3 any one of them based on block chain technology,
It is characterized in, the atmosphere pollution sensing data of sensor node acquisition are transmitted to aggregation node by parallel multipath routing mode, have
Body is：Sensor node senses the road of data transmission using the multiple preferred routed paths determined by aggregation node as atmosphere pollution
Diameter determines the load percentage between each preferred routed path, and the atmosphere pollution sensing data of acquisition are divided according to load percentage
After distribute to each preferred routed path and be transmitted.
5. the atmosphere pollution environment acquisition processing system according to claim 4 based on block chain technology, characterized in that converge
Poly- node determines multiple preferred routed paths of sensor node, specifically includes：
(1) for aggregation node in the netinit stage to Web broadcast initialization information, record sends the time of initialization information
t0；
(2) sensor node of originating path detection packet is set as source node, and aggregation node receives multiple paths that source node is sent
Corresponding receiving time is wrapped and is recorded in detection, and source node is obtained to a plurality of routing road of aggregation node by processing path detection packet
Diameter, wherein each path detection packet carries the essential information of a routed path, the essential information includes the routing road
Sensor node, link-state information and the bandwidth requirement information for including in diameter；
(3) routed path is screened, the path to being unsatisfactory for primary condition is rejected, according to the bandwidth demand of source node
Estimate the routed path number K needed, K mean cluster is carried out to the routed path that filters out, according to cluster result by remaining road
K cluster is divided by path, wherein set primary condition as：
In formula, E (i) is the dump energy of the sensor node of dump energy minimum in routed path i, and E (j) is routing road
The dump energy of the sensor node of dump energy minimum in diameter j, n are routed path quantity,For the judgement value function of setting, whenWhen,WhenWhen,t1(i) it is
Aggregation node receives the time for the routed path i respective paths detection packet that source node is sent, t0For the transmission initialization information
Time, t1(j) it is that the routed path j respective paths that aggregation node reception source node is sent detect the time of packet；
(4) aggregation node selects a routed path as preferred routed path from each cluster, obtains K preferred routing roads
Corresponding preferred routed path information is sent to source node along every preferred routed path and updates source node by diameter, aggregation node
Routing table, and then source node obtains K preferred routed paths.
6. the atmosphere pollution environment acquisition processing system according to claim 5 based on block chain technology, characterized in that road
Process of the diameter detection packet from source node to aggregation node, specifically includes：Source node receives path to Web broadcast path detection packet
The sensor node of detection packet determines whether the sensor node number for including in path detection packet is more than preset number threshold value,
When more than when give up the path detection packet, when being not above by the ID of itself, current remaining and with upper hop sense
One hop link information between device node is added in the path detection packet of reception, forms new path detection packet, and chosen distance
Nearest neighbor node is sent to next-hop node as next-hop node, by the new path detection packet, until path detection
Packet reaches aggregation node.
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