CN112243206A - Industrial-site-oriented wireless network visual configuration system and method - Google Patents
Industrial-site-oriented wireless network visual configuration system and method Download PDFInfo
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Abstract
The invention discloses an industrial field-oriented wireless network visual configuration system and method, belonging to the technical field of industrial wireless communication.A network architecture comprises a plurality of wireless acquisition nodes forming a cluster network architecture, an intelligent wireless gateway with a heterogeneous protocol high-quality fusion function and a configuration command forwarding function, a visual SDN control terminal for receiving a message sent by the intelligent wireless gateway and a programmable cloud platform for storing an improved upgrading program of the visual SDN control terminal; and the intelligent wireless gateway receives the message sent by the cluster head node. The method has the functions of dragging and configuring the network path, setting the network parameters on line, recommending the optimal cluster head and the optimal routing path, displaying the channel state in real time and the like, and combines the SDN thought to separate the control layer from the data layer, thereby reducing the number of control type data packets and further reducing the energy consumption.
Description
Technical Field
The invention relates to the technical field of industrial wireless communication, in particular to a wireless network visual configuration system and a wireless network visual configuration method for an industrial field.
Background
Compared with the defects of complex wiring, inconvenient maintenance, poor expansibility, high cost and the like of the traditional wired network, the wireless sensor network becomes a hotspot of research in various fields due to the characteristics of high flexibility, low cost, self-organization and the like; however, the wireless sensor network still has many deficiencies to be perfected in the practical application of industry, such as:
(1) the frequency spectrum resource is finite, and uncertain time delay and high packet loss rate caused by uneven resource distribution of nodes in the communication process are possible;
(2) the wireless nodes are inconvenient to replace because the wireless nodes are powered by batteries, and the premature energy exhaustion of a certain node easily causes the life cycle of the whole network to be shortened;
(3) the management difficulty is high, the nodes communicate through wireless links, the reliability is poor, and once a fault occurs, the fault is difficult to check.
Therefore, there is a need to develop a configuration-based visual wireless network configuration system that can simplify the network configuration process, improve the life cycle of the wireless network, and timely discover and eliminate network failures.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an industrial field-oriented wireless network visual configuration method, which has the functions of dragging and configuring a network path, setting network parameters on line, recommending an optimal cluster head and an optimal routing path, displaying a channel state in real time and the like, and is combined with an SDN thought to separate a control layer and a data layer, so that the number of control type data packets is reduced, and the energy consumption is further reduced.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a wireless network visualization configuration system facing an industrial field comprises a plurality of wireless acquisition nodes forming a cluster network architecture, an intelligent wireless gateway with a heterogeneous protocol high-quality fusion function and a configuration command forwarding function, a visualization SDN control terminal for receiving a message sent by the intelligent wireless gateway, and a programmable cloud platform for storing an improvement and upgrade program of the visualization SDN control terminal; and the intelligent wireless gateway receives the message sent by the cluster head node.
The technical scheme of the invention is further improved as follows:
the wireless acquisition node is used for monitoring temperature, current, voltage and vibration information in a factory and sending a message to the visual SDN control terminal through the cluster head node in time; the data sent by the wireless acquisition node are Zigbee and Wifi heterogeneous network data;
the intelligent wireless gateway is used for carrying out protocol rapid conversion on wireless acquisition nodes supporting different wireless communication protocols and distributing configuration information to the wireless acquisition nodes;
the visual SDN control terminal is used for visually configuring a wireless acquisition node address, a cluster head and a routing path of a field wireless network by an operator and displaying a channel state, a link state and node state information in real time;
the cloud platform can upgrade the visual SDN control terminal through an application program interface, and the visual SDN control terminal can send data information to the cloud platform for storage; and the visual SDN control terminal downloads and updates the application program from the cloud platform and uploads data information through the application program interface.
An industrial site-oriented wireless network visualization configuration method comprises the following steps:
step 6, planning a routing path;
step 7, in the operation period of the network, the visual SDN control terminal displays the state information, the link state and the channel state of the wireless acquisition node in real time;
step 8, the visual SDN control terminal reflects the state of each wireless acquisition node;
step 9, adding a wireless acquisition node;
and step 10, the visual SDN control terminal is updated through cloud platform downloading.
The technical scheme of the invention is further improved as follows: in step 5, the plurality of wireless acquisition nodes are divided into three types, namely gateway nodes, cluster head nodes and common nodes, wherein the network address allocation scheme divides the wireless acquisition nodes into addresses according to different division types of the wireless acquisition nodes;
and the cluster head election is respectively displayed in a visual SDN control terminal in a highlight and bubble mode according to the residual energy and the number of the neighbor wireless acquisition nodes, and the wireless acquisition nodes which are required to be set as cluster heads are clicked according to recommendation and then set as cluster head nodes.
The technical scheme of the invention is further improved as follows: in step 6, in order to balance the residual energy of the nodes, reduce the communication delay and improve the life cycle of the whole network, the visual SDN control terminal has a shortest path and an energy balance path for recommendation, wherein the shortest path is represented by hop number HcoutIs an index, where { Hcout|Hcout≥1，HcoutE.g. Z, hop count H from cluster head node to gateway nodecoutH if the regular node sends data to the gateway node as 1coutThe minimum numerical value is the shortest path scheme; energy balance route with node residual energy PresIs an index, where { Pres|Pres≥0，PresE.g. R, i.e. each hop always selects P in the process of sending data to the gateway node by the common noderesThe node with the largest value; if the factory has special requirements, an operator can select paths of all the nodes in a dragging mode according to the actual condition of the factory.
The technical scheme of the invention is further improved as follows: in step 7, the channel state is determined according to the number P of data packets transmitted by the transmitting node in the channel within a preset time periodSendAnd the received acknowledgement frame PAckThe ratio of the number of the channels, i.e. the packet transfer ratio, reflects the channel state, and the specific formula is as follows:
and the operator allocates a channel with a better channel state for the local key link of the network according to the channel state.
The technical scheme of the invention is further improved as follows: in step 8, if the node has a high failure rate of sending information due to too low energy or other reasons, the visualized SDN control terminal may delete the wireless acquisition node, and after deleting the node, the visualized SDN control terminal may release the address information of the node to ensure a sufficient address space to add a new node.
The technical scheme of the invention is further improved as follows: in step 9, the adding of the wireless acquisition node specifically includes clicking the wireless acquisition node to select the cluster where the wireless acquisition node is located after the operations of steps 1, 2 and 3 are performed, and the visual SDN control terminal allocates an address to the wireless acquisition node according to the cluster where the wireless acquisition node is located, and selects a routing path.
The technical scheme of the invention is further improved as follows: in step 10, if a new network configuration function is developed in a later stage, the visual SDN control terminal can be updated through cloud platform downloading.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. the invention combines the idea of SDN, realizes the separation of the control plane and the data plane, reduces the quantity of control data packets in the network and further reduces the energy consumption.
2. The intelligent wireless gateway adopted in the invention can realize the rapid fusion of various heterogeneous protocols, and eliminate the difference of industrial wireless networks.
3. The invention adopts the visual SDN control terminal, utilizes visual mode to display the state of the network, is more visual, and visual configuration strategy, realizes flexible network configuration, and provides corresponding scheme in aspects of cluster head election, path planning and channel selection, thereby reducing the overall energy consumption of the network.
4. The visual SDN control terminal can also transmit data to a cloud platform for storage, and can also update and upgrade software through an application program interface.
5. The invention can simplify the flow of network configuration, improve the life cycle of the wireless network, and can find and remove network faults in time.
Drawings
FIG. 1 is a system architecture diagram of the present invention;
fig. 2 is a functional schematic diagram of a visual SDN control terminal according to the present invention.
The system comprises 1 wireless acquisition nodes, 2 intelligent wireless gateways, 3 visual SDN control terminals, 4 cloud platforms, 5 application program interfaces.
Detailed Description
The invention provides an industrial field-oriented wireless network visual configuration system and method, which are developed aiming at the defects of limited spectrum resources, limited energy, high management difficulty and the like of a wireless sensor network in the prior art in industrial practical application, and particularly relates to a method for realizing the visual online configuration of an industrial wireless network based on a configuration mode by combining the idea of an SDN (software defined network) and the industrial wireless sensor network.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, a network architecture of an industrial field-oriented wireless network visualization configuration system includes a plurality of wireless acquisition nodes 1, an intelligent wireless gateway 2, a visualization SDN control terminal 3, and a cloud platform 4. The wireless acquisition node 1 is used for monitoring information such as temperature, current, voltage and vibration in a factory and sending messages to the visual SDN control terminal 3 through the cluster head node in time; the intelligent wireless gateway 2 is used for carrying out rapid protocol conversion on the wireless acquisition nodes 1 supporting different wireless communication protocols and distributing configuration information to the wireless acquisition nodes 1; the visual SDN control terminal 3 is used for visually configuring the address, the cluster head and the routing path of the wireless acquisition node 1 of the field wireless network by an operator; displaying the channel state, the link state and the node state information in real time; the cloud platform 4 can upgrade the visual SDN control terminal 3 through the application program interface 5, and the visual SDN control terminal 3 can send data information to the cloud platform 4 for storage.
As shown in fig. 2, the visual SDN control terminal 3 mainly includes a function module of a southbound interface (connected to a field wireless network) and a function module of a northbound interface (connected to a cloud platform) of the visual SDN control terminal.
An industrial site-oriented wireless network visualization configuration method comprises the following steps:
And 2, sequentially scanning and binding the wireless acquisition nodes 1 by the visual SDN control terminal 3, and storing basic information of each wireless acquisition node 1 into the visual SDN control terminal 3 by scanning the two-dimensional code, so as to establish a mapping relation between the wireless acquisition nodes 1 and the visual SDN control terminal 3, and subsequently adding the wireless acquisition nodes 1 can also be realized by scanning the two-dimensional code.
And 3, importing the monitored factory area map into a visual SDN control terminal 3, and calibrating the specific positions of the nodes imported in the step 2 on the map, wherein the operation is to more visually display the actual distribution areas of the nodes on a visual interface, and facilitate the selection of cluster heads in the steps 5 and 6 and the planning of routing paths.
And 4, in the network initialization process, all the wireless acquisition nodes 1 send the information of the wireless acquisition nodes and the communication link quality information to the visual SDN control terminal 3 through the gateway.
according to the network address allocation scheme, the wireless acquisition nodes 1 can be divided into three types, namely gateway nodes, cluster head nodes and common nodes according to the network architecture, and the addresses of the wireless acquisition nodes 1 are divided according to different types of the wireless acquisition nodes 1; the network address is 16 bits, wherein the gateway node is unique, so the network addresses of the gateway are all set to be 0, namely 0x0000, for the address allocation of other nodes, the following scheme is adopted, wherein the 15 th to 12 th bits are reserved as cluster head node addresses, and the 11 th to 0 th bits are reserved as common node addresses; because 0x0000 is already occupied by the gateway node, the range of the cluster head node is 0x 1000-0 xF000, and for the common node, the 15 th-12 th bit is determined by the cluster head address of the cluster where the common node is located, for example, in the cluster with the cluster head of 0x2000, the address range of the common node of the cluster is 0x 2001-0 x2 FFF; in practical application, the address range can be divided according to practical situations.
Selecting a cluster head, wherein the visual SDN control terminal 3 carries out cluster head recommendation according to two indexes of the number of neighbor nodes and the residual energy amount in consideration of energy consumption and a life cycle of a network, namely in the running process of the network, the visual SDN control terminal 3 respectively displays the maximum residual energy and the nodes of the maximum neighbor nodes in a highlighting and bubble mode; and an operator can set the cluster head nodes according to the recommendation according to the actual condition.
Step 6, a routing path planning scheme is adopted to balance the residual energy of the nodes, reduce the communication time delay and improve the life cycle of the whole network, and the visual SDN control terminal 3 can recommend the shortest path and the energy balance path, wherein the shortest path is the hop number HcoutIs an index, where { Hcout|Hcout≥1，HcoutE.g. Z, hop count H from cluster head node to gateway nodecoutH if the regular node sends data to the gateway node as 1coutThe minimum numerical value is the shortest path scheme; energy balance route with node residual energy PresIs an index, where { Pres|Pres≥0，PresE.g. R, i.e. each hop always selects P in the process of sending data to the gateway node by the common noderesThe node with the largest value; if the factory has special requirements, an operator can select the path of each node in a dragging mode according to the actual condition of the factory.
Step 7, during the operation period of the network, the visual SDN control terminal 3 displays the state information of the nodes and the channel state in real time, and the sending nodes of the channel with the state in the channel according to 10 minutes send the number of data packets (P)Send) And the received acknowledgement frame (P)Ack) The Packet Delivery Ratio (PDR) reflects the channel status, and is specifically publicThe formula is as follows:
according to the formula, the real-time states of all channels used in the whole network can be seen on the visual SDN control terminal 3, and an operator can allocate a channel with a good channel state to a local key link of the network according to the channel state; to ensure preferential transmission of critical data.
Step 8, the visualized SDN control terminal 3 reflects the state of each node, if the failure rate of sending information of the node is high due to too low energy or other reasons, the visualized SDN control terminal 3 can delete the node, and after deleting the node, the visualized SDN control terminal 3 releases the address information and the like of the node to ensure sufficient address space to add new nodes. For example, a 0x2002 node is about to run out of energy, the node can be clicked to delete, the 0x2002 network address is released, and a new node can be set as the address.
And 9, adding nodes, namely firstly performing the operations of the steps 1, 2 and 3, then clicking the nodes to select the clusters where the nodes are located, distributing addresses for the nodes according to the clusters where the nodes are located through the visual SDN control terminal 3, if the newly added nodes belong to the clusters with cluster heads of 0x3000 and 5 common nodes, the network addresses of the nodes are 0x3006, and then the nodes work according to the set routing scheme.
Step 10, if a new network configuration function is developed at a later stage, the visual SDN control terminal 3 can update and upgrade the terminal through the application program interface 5, so that frequent updating and upgrading of hardware devices are avoided.
In summary, the invention adopts the visual SDN control terminal, displays the state of the network in a visual manner, is more intuitive, and visually configures the strategy, thereby realizing flexible network configuration, and the visual SDN control terminal provides a corresponding scheme in aspects of cluster head election, path planning, and channel selection, thereby reducing the overall energy consumption of the network.
Claims (9)
1. An industrial site-oriented wireless network visualization configuration system is characterized in that: the network architecture comprises a plurality of wireless acquisition nodes (1) forming a cluster network architecture, an intelligent wireless gateway (2) with a heterogeneous protocol high-quality fusion function and a configuration command forwarding function, a visual SDN control terminal (3) for receiving a message sent by the intelligent wireless gateway, and a programmable cloud platform (4) for storing an improved upgrading program for the visual SDN control terminal (3); and the information generated by the wireless acquisition node (1) is forwarded to the cluster head node in a multi-hop mode, and the intelligent wireless gateway (2) receives the information sent by the cluster head node.
2. The system for visually configuring the wireless network oriented to the industrial field according to claim 1, wherein:
the wireless acquisition node (1) is used for monitoring temperature, current, voltage and vibration information in a factory and sending messages to the visual SDN control terminal (3) through the cluster head node in time; the data sent by the wireless acquisition node (1) are Zigbee and Wifi heterogeneous network data;
the intelligent wireless gateway (2) is used for carrying out rapid protocol conversion on the wireless acquisition nodes (1) supporting different wireless communication protocols and distributing configuration information to the wireless acquisition nodes (1);
the visual SDN control terminal (3) is used for visually configuring the address, the cluster head and the routing path of a wireless acquisition node (1) of a field wireless network by an operator and displaying a channel state, a link state and node state information in real time;
the cloud platform (4) can upgrade the visual SDN control terminal (3) through an application program interface (5), and the visual SDN control terminal (3) can send data information to the cloud platform (4) for storage; the visual SDN control terminal (3) downloads and updates application programs and uploads data information from the cloud platform (4) through an application program interface (5).
3. A wireless network visualization configuration method for industrial sites is characterized in that: the method comprises the following steps:
step 1, arranging a plurality of wireless acquisition nodes (1) at each position to be monitored, and making an identity mark for each wireless acquisition node (1) as a basis for binding a visual SDN control terminal (3);
step 2, the visual SDN control terminal (3) establishes a mapping relation between the wireless acquisition node (1) and the visual SDN control terminal (3) sequentially through 'identity' for the wireless acquisition node (1);
step 3, importing the monitored factory area map into the visual SDN control terminal (3), and determining the actual positions of the wireless acquisition nodes (1) on the map one by one;
step 4, network initialization: all wireless acquisition nodes (1) send self information and communication link quality information to the visual SDN control terminal (3) through an intelligent wireless gateway (2);
step 5, after receiving the state information of the wireless acquisition nodes (1), the visual SDN control terminal (3) allocates network addresses and elects cluster heads for a plurality of wireless acquisition nodes (1);
step 6, planning a routing path;
step 7, in the operation period of the network, the visual SDN control terminal (1) displays the state information, the link state and the channel state of the wireless acquisition node (1) in real time;
step 8, the visual SDN control terminal (3) reflects the state of each wireless acquisition node (1);
step 9, adding a wireless acquisition node (1);
and step 10, the visual SDN control terminal (3) is downloaded through a cloud platform (4) for updating.
4. The method for visually configuring the wireless network oriented to the industrial field according to claim 3, wherein: in the step 5, the plurality of wireless acquisition nodes (1) are divided into three types, namely gateway nodes, cluster head nodes and common nodes, wherein the network address allocation scheme divides the wireless acquisition nodes (1) into addresses according to different division types of the wireless acquisition nodes;
and the cluster head election is respectively displayed in a visual SDN control terminal (3) in a highlight and bubble mode according to the residual energy and the number of the neighbor wireless acquisition nodes, and the wireless acquisition nodes which are to be set as the cluster heads are clicked according to the recommendation and then set as the cluster head nodes.
5. The method for visually configuring the wireless network oriented to the industrial field according to claim 3, wherein: in step 6, in order to balance the residual energy of the nodes, reduce the communication delay and improve the life cycle of the whole network, the visual SDN control terminal (3) has a shortest path and an energy balance path to recommend, wherein the shortest path is represented by the hop count HcoutIs an index, where { Hcout|Hcout≥1，HcoutE.g. Z, hop count H from cluster head node to gateway nodecoutH if the regular node sends data to the gateway node as 1coutThe minimum numerical value is the shortest path scheme; energy balance route with node residual energy PresIs an index, where { Pres|Pres≥0，PresE.g. R, i.e. each hop always selects P in the process of sending data to the gateway node by the common noderesThe node with the largest value; if the factory has special requirements, an operator can select paths of all the nodes in a dragging mode according to the actual condition of the factory.
6. The method for visually configuring the wireless network oriented to the industrial field according to claim 3, wherein: in step 7, the channel state is determined according to the number P of data packets transmitted by the transmitting node in the channel within a preset time periodSendAnd the received acknowledgement frame PAckThe ratio of the number of the channels, i.e. the packet transfer ratio, reflects the channel state, and the specific formula is as follows:
and the operator allocates a channel with a better channel state for the local key link of the network according to the channel state.
7. The method for visually configuring the wireless network oriented to the industrial field according to claim 3, wherein: in step 8, if the node has a high failure rate of sending information due to too low energy or other reasons, the visualized SDN control terminal (3) may delete the wireless acquisition node (1), and after deleting the node, the visualized SDN control terminal (3) may release the address information of the node to ensure a sufficient address space to add a new node.
8. The method for visually configuring the wireless network oriented to the industrial field according to claim 3, wherein: in step 9, the adding of the wireless collection node (1) is specifically to click the wireless collection node to select its cluster after performing the operations of steps 1, 2 and 3, and the visual SDN control terminal (3) allocates an address to the wireless collection node according to its cluster and selects a routing path.
9. The method for visually configuring the wireless network oriented to the industrial field according to claim 3, wherein: in step 10, if a new network configuration function is developed in a later stage, the visual SDN control terminal (3) can be updated by downloading through the cloud platform (4).
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| CN114301951B (en) * | 2021-05-14 | 2023-11-14 | 中国人民解放军战略支援部队信息工程大学 | Information flow visual display method and system |
| CN117692489A (en) * | 2024-02-02 | 2024-03-12 | 深圳市丰润达科技有限公司 | Data acquisition system and method |
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Application publication date: 20210119 |