CN103580871A - Data transmission method and security gateway equipment for Internet of things - Google Patents

Abstract

The invention discloses a data transmission method for the Internet of things. The method comprises the steps that sensor nodes in the Internet of things sense massive data; identification and classification are carried out on the data according to preset marks; the data of the Internet of things are compressed, encrypted and transmitted; disjunction fusion processing is carried out on the data through gateway equipment, different limits of authority are distributed according to a preset strategy; the gateway equipment termly pushes the processed data to a cloud storage server. According to the data transmission method for the Internet of things, after sensed data are obtained, fusion, classification and other processing are carried out on the data, the scale of data can be reduced, transmission is made to be more efficient by optimizing the deployment of the gateway equipment, and more efficient and safer response can be provided to the server or an inquirer.

Description

A kind of internet of things data transmission method and security gateway equipment

Technical field

The invention belongs to technology of Internet of things field, relate in particular to a kind of internet of things data transmission method and equipment.

Background technology

Generally, Internet of Things all has the feature of large-scale application, needs large quantity sensor and other fastening to support its work.Under such application background, there are the data of magnanimity to need transmission, a large amount of sensitive datas also comprise wherein, how efficiently also to transmit safely the major issue that these class data become industry research.

Summary of the invention

The invention provides a kind of internet of things data transmission method and equipment, by transmission data being carried out to discriminator and to the data fusion of extracting, by carry out compress-encrypt in transmitting procedure, avoid that data volume in network is excessive, the generation of uneasy congruent problem, effectively solved the transmission problem of Internet of Things mass data, can make Internet of Things data be used efficiently in real needs, solve the unsafe problem of transfer of data.

To achieve these goals, the present invention adopts following technical scheme:

, comprise the steps:

In S1, Internet of Things, sensing node collects first-hand initial data;

S2, the default sign of foundation carry out discriminator to data;

S3, data are carried out to compress-encrypt, and send to gateway device;

S4, gateway device be to receiving the data fusion treatment of extracting, and distribute different authorities according to predefined strategy;

S5, gateway device regularly the data-pushing after processing to high in the clouds storage server.

An equipment, comprising:

Data collection module, by transducer collection site data;

Discriminator unit, carries out discriminator for the data to collected, and distributes different labels;

Safe transmission unit, carries out classified compression processing for the data to collected, and by the mode safety-oriented data transfer of encrypting.

A gateway device, comprising:

Data receiver unit, the data that send for receiving client;

Safety certification unit, is mainly responsible for right assignment and to data visitor's identity, purview certification;

Information process unit, for received data are extracted, fusion treatment, and distributes corresponding label;

Safe transmission unit, carries out classified compression processing for the data to collected, and by the mode safety-oriented data transfer of encrypting.

Preferably, described safety certification unit should comprise:

Data check unit, for carrying out data check to the data that receive;

Right assignment unit, carries out right assignment for the data that are different attribute to label;

Authentication unit, for authenticating inquiry person's identity;

Purview certification unit, for authenticating inquiry person's authority.

Preferably, described information process unit should comprise:

Data processing unit, for fusion treatment that the data that receive are extracted, eliminate redundancy data;

Label distribution unit, for adding tag attributes to data based its feature of processing.

A gateway device dispositions method, comprises the steps:

Similarity matrix S between B1, calculating institute layout sensing node, S (i, j) represents that node j is to what extent applicable to doing bunch head of node i, computational methods are as follows:

$S(i,j)=\left\{\begin{array}{c}-d(i,j),i\≠j\\ P\left(j\right),i=j\end{array}\right.$

Wherein, d (i, j) is the space length of node i to node j; P is deflection parameter, i.e. value on similarity matrix S diagonal, and deflection parameter P computational methods are as follows:

$P\left(i\right)=\stackrel{\‾}{S}$

Wherein, be the mean value of similarity matrix S;

B2, node accountability and availability calculations, accountability r (i, j) represents that node j is as the appropriate level of node i bunch head, availability a (i, j) represent that node i selection node j is as the appropriate level of its bunch of head, accountability and availability calculations method are as follows:

$r(i,j)=S(i,j)-\underset{j^{\text{'}}s.t.j^{\text{'}}\≠j}{\max }\{a(i,j^{\text{'}})+S(i,j^{\text{'}})\}$

$a(i,j)=\min \{0,r(j,j)+\underset{i^{\text{'}}s.t.i^{\text{'}}\∉\{i,j\}}{\mathrm{\Σ}}\max \{0,r(i^{\text{'}},j)\left\}\right\}$

$a(j,j)=\underset{i^{\text{'}}s.t.i^{\text{'}}\≠j}{\mathrm{\Σ}}\max \{0,r(i^{\text{'}},j)\}$

B3, by accountability and availability iteration, find gateway device to dispose place, the iterative process of accountability and availability, as follows:

R _i=(1-γ)R _i+γR _i-1

A _i=(1-γ)A _i+γA _i-1

Wherein, R _iaccountability matrix while representing i wheel; A _iavailability matrix while representing i wheel; γ is the damping factor of iterative process, by adjusting γ, can change convergence of algorithm speed, the continuous iteration of accountability and availability is upgraded, until reach iterations or the algorithmic statement of regulation, and after renewal finishes, for arbitrary node i, selection makes r (i, j)+a (i, j) be worth maximum j, if i=j, the position that node i is described is the place that gateway device is disposed; If i ≠ j, the position that node j is described is the place that gateway device is disposed;

The position that B4, basis find, disposes gateway device.

The present invention has realized a kind of internet of things data transmission method and equipment, by data being compressed and safe handling in client and gateway device, has effectively improved the efficiency of Internet of Things perception data transmission; Meanwhile, by perception data is classified and authority setting, improved efficiency and the fail safe of Internet of Things data query.

Accompanying drawing explanation

Fig. 1 is internet of things data transmission method flow chart provided by the invention;

Fig. 2 is Internet of Things client device structural representation provided by the invention;

Fig. 3 is things-internet gateway device structure schematic diagram provided by the invention;

Fig. 4 is things-internet gateway equipment workflow diagram provided by the invention;

Fig. 5 is things-internet gateway deployed with devices method flow diagram provided by the invention.

Embodiment

Below in conjunction with accompanying drawing, describe the present invention in detail, it illustrates principle of the present invention as the part of this specification by embodiment, other aspects of the present invention, and feature and advantage thereof will become very clear by this detailed description.

Embodiment mono-

Internet of things data transmission method flow process provided by the present invention as shown in Figure 1, comprising:

In S1, Internet of Things, sensing node collects first-hand initial data;

In Internet of Things, described sensing node is used for the Internet of Things data of collecting sensor collection described equipment is carried out to preliminary treatment;

S2, the default sign of foundation carry out discriminator to data;

In Internet of Things client, collect after sensing node data, need to data, process according to preset rules; In Internet of Things, sensing node can produce a large amount of data, and these packets are containing various information, and client is mated data characteristics according to default sign, is attribute tags different in data post;

S3, data are carried out to compress-encrypt, and send to gateway device;

Data are compressed, reduced the data volume of transmission, and the data after compression are encrypted, the fail safe of data is provided;

S4, gateway device be to receiving the data fusion treatment of extracting, and distribute different authorities according to predefined strategy;

Gateway device is in the face of a large amount of Internet of Things clients, collection has bulk information, by gateway device to data merge, the processing such as classification, can make the Internet of Things data redundancy collected lower, more efficient, gateway device specific works flow process as shown in Figure 4, comprising:

P1, reception client perception data;

P2, the data that receive are merged to eliminate redundancy data;

P3, according to the data characteristics after merging, data are classified, distribute different tag attributes;

P4, the data of different tag attributes are arranged to different access rights;

Whether P5, gateway device need respective queries, if desired, forward P6 to; Otherwise, forward P7 to;

P6, inquiry person is carried out to authentication, if pass through, whether reauthentication it have authority inquiry desired data, and authentication is by corresponding inquiry person's request, otherwise, refusal;

P7, gateway device regularly the data-pushing after processing to high in the clouds storage server.

Embodiment bis-

For said method embodiment, the application provides a kind of client device, and its structural representation as shown in Figure 2, comprising:

Data collection module, by transducer collection site data;

Discriminator unit, carries out discriminator for the data to collected, and distributes different labels;

Safe transmission unit, carries out classified compression processing for the data to collected, and by the mode safety-oriented data transfer of encrypting, data receiver unit, the data that send for receiving client;

Safety certification unit, is mainly responsible for right assignment and to data visitor's identity, purview certification;

Information process unit, for received data are extracted, fusion treatment, and distributes corresponding label;

Safe transmission unit, carries out classified compression processing for the data to collected, and by the mode safety-oriented data transfer of encrypting.

Preferably, described safety certification unit should comprise:

Data check unit, for carrying out data check to the data that receive;

Right assignment unit, carries out right assignment for the data that are different attribute to label;

Authentication unit, for authenticating inquiry person's identity;

Purview certification unit, for authenticating inquiry person's authority.

Preferably, described information process unit should comprise:

Data processing unit, for fusion treatment that the data that receive are extracted, eliminate redundancy data;

Label distribution unit, for adding tag attributes to data based its feature of processing.

Embodiment tri-

For said method embodiment, the invention provides a kind of data transmission of internet of things gateway device dispositions method, its flow process as shown in Figure 5, comprises the steps:

Similarity matrix S between B1, calculating institute layout sensing node, S (i, j) represents that node j is to what extent applicable to doing bunch head of node i, computational methods are as follows:

$S(i,j)=\left\{\begin{array}{c}-d(i,j),i\≠j\\ P\left(j\right),i=j\end{array}\right.$

Wherein, d (i, j) is the space length of node i to node j; P is deflection parameter, i.e. value on similarity matrix S diagonal, and deflection parameter P computational methods are as follows:

$P\left(i\right)=\stackrel{\‾}{S}$

Wherein, be the mean value of similarity matrix S;

B2, node accountability and availability calculations, accountability r (i, j) represents that node j is as the appropriate level of node i bunch head, availability a (i, j) represent that node i selection node j is as the appropriate level of its bunch of head, accountability and availability calculations method are as follows:

$r(i,j)=S(i,j)-\underset{j^{\text{'}}s.t.j^{\text{'}}\≠j}{\max }\{a(i,j^{\text{'}})+S(i,j^{\text{'}})\}$

$a(i,j)=\min \{0,r(j,j)+\underset{i^{\text{'}}s.t.i^{\text{'}}\∉\{i,j\}}{\mathrm{\Σ}}\max \{0,r(i^{\text{'}},j)\left\}\right\}$

$a(j,j)=\underset{i^{\text{'}}s.t.i^{\text{'}}\≠j}{\mathrm{\Σ}}\max \{0,r(i^{\text{'}},j)\}$

B3, by accountability and availability iteration, find gateway device to dispose place, the iterative process of accountability and availability, as follows:

R _i=(1-γ)R _i+γR _i-1

A _i=(1-γ)A _i+γA _i-1

Wherein, R _iaccountability matrix while representing i wheel; A _iavailability matrix while representing i wheel; γ is the damping factor of iterative process, by adjusting γ, can change convergence of algorithm speed, the continuous iteration of accountability and availability is upgraded, until reach iterations or the algorithmic statement of regulation, and after renewal finishes, for arbitrary node i, selection makes r (i, j)+a (i, j) be worth maximum j, if i=j, the position that node i is described is the place that gateway device is disposed; If i ≠ j, the position that node j is described is the place that gateway device is disposed;

The position that B4, basis find, disposes gateway device.

Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.

Claims (6)

1. an internet of things data transmission method, is characterized in that, comprises the steps:

In S1, Internet of Things, sensing node collects first-hand initial data;

S2, the default sign of foundation carry out discriminator to data;

S3, data are carried out to compress-encrypt, and send to gateway device;

S4, gateway device be to receiving the data fusion treatment of extracting, and distribute different authorities according to predefined strategy;

S5, gateway device regularly the data-pushing after processing to high in the clouds storage server.

2. a data transmission of internet of things equipment, is characterized in that, comprising:

Data collection module, by transducer collection site data;

Discriminator unit, carries out discriminator for the data to collected, and distributes different labels;

Safe transmission unit, carries out classified compression processing for the data to collected, and by the mode safety-oriented data transfer of encrypting.

3. a data transmission of internet of things gateway device, is characterized in that, comprising:

Data receiver unit, the data that send for receiving client;

Safety certification unit, is mainly responsible for right assignment and to data visitor's identity, purview certification;

Information process unit, for received data are extracted, fusion treatment, and distributes corresponding label;

Safe transmission unit, carries out classified compression processing for the data to collected, and by the mode safety-oriented data transfer of encrypting.

4. gateway device according to claim 3, is characterized in that, described safety certification unit comprises:

Data check unit, for carrying out data check to the data that receive;

Right assignment unit, carries out right assignment for the data that are different attribute to label;

Authentication unit, for authenticating inquiry person's identity;

Purview certification unit, for authenticating inquiry person's authority.

5. gateway device according to claim 3, is characterized in that, described information process unit comprises:

Data processing unit, for fusion treatment that the data that receive are extracted, eliminate redundancy data;

Label distribution unit, for adding tag attributes to data based its feature of processing.

6. a data transmission of internet of things gateway device dispositions method, is characterized in that comprising the steps:

Similarity matrix S between B1, calculating institute layout sensing node, S (i, j) represents that node j is to what extent applicable to doing bunch head of node i, computational methods are as follows:

$S(i,j)=\left\{\begin{array}{c}-d(i,j),i\≠j\\ P\left(j\right),i=j\end{array}\right.$

Wherein, d (i, j) is the space length of node i to node j; P is deflection parameter, i.e. value on similarity matrix S diagonal, and deflection parameter P computational methods are as follows:

$P\left(i\right)=\stackrel{\‾}{S}$

Wherein, be the mean value of similarity matrix S;

B2, node accountability and availability calculations, accountability r (i, j) represents that node j is as the appropriate level of node i bunch head, availability a (i, j) represent that node i selection node j is as the appropriate level of its bunch of head, accountability and availability calculations method are as follows:

$r(i,j)=S(i,j)-\underset{j^{\text{'}}s.t.j^{\text{'}}\≠j}{\max }\{a(i,j^{\text{'}})+S(i,j^{\text{'}})\}$

$a(i,j)=\min \{0,r(j,j)+\underset{i^{\text{'}}s.t.i^{\text{'}}\∉\{i,j\}}{\mathrm{\Σ}}\max \{0,r(i^{\text{'}},j)\left\}\right\}$

$a(j,j)=\underset{i^{\text{'}}s.t.i^{\text{'}}\≠j}{\mathrm{\Σ}}\max \{0,r(i^{\text{'}},j)\}$

B3, by accountability and availability iteration, find gateway device to dispose place, the iterative process of accountability and availability, as follows:

R _i=(1-γ)R _i+γR _i-1

A _i=(1-γ)A _i+γA _i-1

Wherein, R _iaccountability matrix while representing i wheel; A _iavailability matrix while representing i wheel; γ is the damping factor of iterative process, by adjusting γ, can change convergence of algorithm speed, the continuous iteration of accountability and availability is upgraded, until reach iterations or the algorithmic statement of regulation, and after renewal finishes, for arbitrary node i, selection makes r (i, j)+a (i, j) be worth maximum j, if i=j, the position that node i is described is the place that gateway device is disposed; If i ≠ j, the position that node j is described is the place that gateway device is disposed;

The position that B4, basis find, disposes gateway device.

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