CN117336684A - Communication method of engineering equipment in scrap steel yard based on embedded chip - Google Patents

Abstract

The invention relates to a communication method of engineering equipment in a scrap steel yard based on an embedded chip, and belongs to the technical field of engineering communication. The method comprises the following steps: s1: performing MESH networking in a raw material storage yard, and arranging wireless network communication equipment nodes containing embedded chips at the positions of each mobile engineering machine, a base station at a specific position and an operator; s2: the node will judge whether a message is received; when the broadcast message does not contain global node updating information, judging whether the local link library contains information which is not in the global link library of the sender or not by using the embedded chip; if the local node fails to detect any node which is not in the sender global link list, no other operation is executed, and the link quality of the broadcast message is analyzed; if the local node detects any node which is not in the sender global link list, the message is repeatedly broadcasted immediately. The invention realizes wireless network communication under the industrial scene of severe working conditions.

Description

Communication method of engineering equipment in scrap steel yard based on embedded chip

Technical Field

The invention belongs to the technical field of engineering communication, and relates to a communication method of engineering equipment in a scrap steel yard based on an embedded chip.

Background

MESH networks (MESH networks) are a distributed Network topology in which a plurality of devices (called nodes) communicate with each other via wireless or wired connections to form an ad hoc, self-healing Network. In a MESH network, each node can communicate directly with other nodes without relying on a central node or infrastructure. This network architecture allows for multi-hop transmission of data in the network, i.e. forwarding through intermediate nodes, thus enabling flexible data transmission paths.

With the rise and maturity of network technologies such as 5G, the Internet of things and the like, the mesh network has high reliability and flexibility, so that the mesh network is rapidly applied and popularized in industrial scenes. However, since mesh network nodes need to communicate and coordinate with each other, this increases the complexity of the network, and the network bandwidth overhead, as well as the risk of network congestion.

Term interpretation:

MESH Network.

loacal path database: local link libraries.

AP (access point): an access point.

RP (repeater): and forwarding the point.

repeat broadcasting: the broadcast is repeated.

Disclosure of Invention

In view of the above, the present invention aims to provide a method for communication of engineering equipment in a scrap yard based on embedded chips. An intelligent broadcasting method based on an embedded chip comprises the following steps: and judging whether the data packet needs to be rebroadcast to the node or not through the embedded chip, and if so, performing reliable and optimal cost estimation on the broadcasting node in the network. Node hops occur when a message cannot be transmitted directly between two nodes: the node-to-node path must be routed through one or more additional nodes.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the communication method of the engineering equipment in the scrap steel yard based on the embedded chip comprises the following steps:

s1: performing MESH networking in a raw material storage yard, and arranging wireless network communication equipment nodes containing embedded chips at the positions of each mobile engineering machine, a base station at a specific position and an operator; assuming a fully functional mesh network component is performed in the raw material storage yard, wherein all nodes operate a multicast protocol; the link pool of node a includes B, C and D, but does not include E, F, G;

s2: the improved mesh wireless network communication method comprises the following steps:

after the flow starts, the node judges whether a message is received or not;

if no message is received, the embedded chip will check the local link and judge whether there is update of the local node information;

if not, the return node judges whether to receive the message; if there is an update, such as having a new link or losing all links, the change of the broadcast response node information is not immediately sent, but a certain delay is introduced; the delay is calculated by using embedded chip weighting according to local link library data;

confirming whether the update of the local node exists, if so, broadcasting a message containing a local link library and a global link library, and not re-broadcasting; if not, the return node judges whether to accept the message;

if the data packet received by the node is a broadcast data packet, checking whether the data packet is a broadcast data packet; if not, the data message is sent to the embedded chip for analysis, and a local link library is updated; each node stores links meeting a threshold value from other nodes in a local link library, and the threshold value sets the number of received links, and comprehensively determines the communication quality and the time required by data transmission from one end of a path to the other end;

when the received data packet is a broadcast message, the data packet is general broadcast data or a data packet with modified node database information;

if the data packet is a data packet modified by node database information, the embedded chip modifies/updates global node information according to the information and inputs the global node information into a global link library on a receiving node;

when the broadcast message does not contain global node updating information, judging whether the local link library contains information which is not in the global link library of the sender or not by using the embedded chip; if the local node fails to detect any node which is not in the sender global link list, no other operation is executed, and the link quality of the broadcast message is analyzed; if the local node detects any node which is not in the sender global link list, the message is repeatedly broadcasted immediately.

The invention has the beneficial effects that:

the process and the deployment environment of the raw material storage yard are fully combined, and wireless network communication under the industrial scene of the harsher working condition represented by the raw material storage yard is realized. The invention has the following advantages:

1. self-organization: nodes in the MESH network can automatically discover and establish connection with other nodes to form a network structure without centralized management or configuration. (storage yard equipment)

2. Self-repairability: when a certain node in the MESH network fails or breaks, other nodes can bypass the failed node by selecting a new path, so that the self-repairing of the network is realized.

3. High reliability: because a plurality of connection paths are selectable among nodes in the MESH network, even if one path has a problem, data can still be transmitted through other paths, thereby improving the reliability and redundancy of the network.

4. The best data packets to rebroadcast are determined by the embedded computer program with minimal overhead broadcast messages, i.e. minimal number of data transmissions, thereby eliminating network related failures due to congestion.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:

fig. 1 and fig. 2 are schematic diagrams of a raw material storage yard mesh network;

FIG. 3 is a flow chart of the present invention;

FIGS. 4 and 5 are raw material storage yard mesh network broadcasting and collision;

fig. 6 and 7 show the broadcast of the mesh network of the raw material storage yard after the adoption of the invention.

Detailed Description

Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.

1. Performing MESH networking in a raw material storage yard, and arranging wireless network communication equipment nodes containing embedded chips in each mobile engineering machine, a base station at a specific position, an operator and the like; it is assumed that a fully functional mesh network component is implemented within the stock yard, where all nodes run multicast protocols. The link pool of node a includes B, C and D, but does not include E, F, G, with the remaining node links as shown in fig. 1 and 2.

2. According to the flowchart shown in fig. 3, the improved mesh wireless network communication method is as follows:

after the flow starts, the node judges whether a message is received or not;

if no message is received, the embedded chip will check the local link Lu Ku (loacal path database) to determine whether there is an update of the local node information;

if not, the return node judges whether to receive the message; if there is an update, such as having a new link or losing all of its links, the broadcast response node information change is not sent immediately, but rather a delay is introduced. A random delay is added in order to avoid that all nodes remind the other party of the node update information at the same time, resulting in more collisions. The delay is calculated from the local link library data using embedded chip weights, the weighting algorithm not being described in detail here.

Confirming whether the update of the local node exists or not, and broadcasting a message containing a local link library and a global link library if the update exists, and never re-broadcasting (new reply); if not, the return node judges whether to accept the message.

If the data packet received by the node is a broadcast data packet, checking whether the data packet is a broadcast data packet. If not, the data message is sent to the embedded chip for analysis, and the local link library is updated. Each node stores links meeting a threshold from other nodes in a local link library, and the threshold sets the number of received links, communication quality, time required for data transmission from one end of a path to the other end, and other factors to comprehensively determine.

When the received data packet is a broadcast message, it may be general broadcast data, or may be a data packet modified by node database information.

If the data packet is a data packet modified by the node database information, the embedded chip modifies/updates the global node information according to the information and inputs the global node information into the global link library on the receiving node.

When the broadcast message does not contain global node updating information, judging whether the local link library contains information which is not in the global link library of the sender or not by using the embedded chip. If the local node fails to detect any node that is not in the sender global link list, no other operation is performed and the link quality of the message is simply analyzed. If the local node can detect any node not in the sender global link list, the message is repeatedly broadcast (repeat broadcasting) immediately.

Mesh networks include a potentially large number of nodes, each of which communicates with each other. In a wireless mesh network, each node is both AP (access point) and an RP (repeater), which will also take on the task of relaying packets after receiving the data packets. In the conventional broadcasting manner, most of the messages are redundant, and the repeated redundant messages cause various problems of the network due to flooding (flooding) of the network, increase the complexity of the network, increase the network bandwidth overhead and increase the risk of network blocking.

Fig. 4 and 5 are simplified descriptions of the above-described problems. When node a broadcasts a message, all remaining nodes B-G in the stock yard will forward (remapper) after receiving the message. Although the number of nodes is not large, the adjacent nodes collide with each other, so that the channel is congested, and the subsequent data packet is blocked by repeated forwarding of the previous data packet.

After the system and the method of the invention are adopted, the initiating node A sends a broadcast message to the mesh network, wherein the broadcast message comprises a local link Lu Ku and a global link library. The message arrives at B/C/D and cannot reach E/F/G as shown in FIG. 6.

Nodes B and C check the global link pool from node a against their own local link pool and find that there are no nodes in their pool that are not at a. Thus, nodes B and C will not forward the message. Node D also receives the message sent by node a, but it finds that it has a node E/F/G not included in a by checking the global link pool of node a with its own local link pool. Node D will retransmit the broadcast message and E/F/G will receive the retransmitted broadcast message as shown in fig. 7.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.

Claims (1)

1. The communication method of the engineering equipment in the scrap steel yard based on the embedded chip is characterized by comprising the following steps of: the method comprises the following steps:

s1: performing MESH networking in a raw material storage yard, and arranging wireless network communication equipment nodes containing embedded chips at the positions of each mobile engineering machine, a base station at a specific position and an operator; assuming a fully functional mesh network component is performed in the raw material storage yard, wherein all nodes operate a multicast protocol; the link pool of node a includes B, C and D, but does not include E, F, G;

s2: the improved mesh wireless network communication method comprises the following steps:

after the flow starts, the node judges whether a message is received or not;

if no message is received, the embedded chip will check the local link and judge whether there is update of the local node information;

if not, the return node judges whether to receive the message; if there is an update, such as having a new link or losing all links, the change of the broadcast response node information is not immediately sent, but a certain delay is introduced; the delay is calculated by using embedded chip weighting according to local link library data;

confirming whether the update of the local node exists, if so, broadcasting a message containing a local link library and a global link library, and not re-broadcasting; if not, the return node judges whether to accept the message;

if the data packet received by the node is a broadcast data packet, checking whether the data packet is a broadcast data packet; if not, the data message is sent to the embedded chip for analysis, and a local link library is updated; each node stores links meeting a threshold value from other nodes in a local link library, and the threshold value sets the number of received links, and comprehensively determines the communication quality and the time required by data transmission from one end of a path to the other end;

when the received data packet is a broadcast message, the data packet is general broadcast data or a data packet with modified node database information;

if the data packet is a data packet modified by node database information, the embedded chip modifies/updates global node information according to the information and inputs the global node information into a global link library on a receiving node;

when the broadcast message does not contain global node updating information, judging whether the local link library contains information which is not in the global link library of the sender or not by using the embedded chip; if the local node fails to detect any node which is not in the sender global link list, no other operation is executed, and the link quality of the broadcast message is analyzed; if the local node detects any node which is not in the sender global link list, the message is repeatedly broadcasted immediately.