A Deterministic Scheduling Method for Industrial Wireless Networks Supporting Packet Aggregation
An industrial wireless network and scheduling method technology, applied in the field of deterministic scheduling of industrial wireless networks that support data packet aggregation, can solve the problems of consuming time slot resources, less time slot resources, transmission conflicts, etc., to improve network efficiency and improve scheduling success. rate, the effect of reducing the number of packets
Active Publication Date: 2022-07-15
CHONGQING UNIV OF POSTS & TELECOMM
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[0004] Since the links near the gateway in the industrial wireless network will generate a large number of transmission conflicts, the conflicting links will be arranged in different time slots, resulting in the consumption of a large number of time slot resources, which will give unscheduled links Leaving fewer slot resources, resulting in the link not being able to complete scheduling within the deadline
However, considering the lack of support for packet aggregation, the design of deterministic scheduling methods
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[0049] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic idea of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.
[0050] see Figure 1 to Figure 4 , figure 1 Described is the working process of the additional link scheduling method based on conflict slack priority; figure 2 D...
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The invention relates to an industrial wireless network deterministic scheduling method supporting data packet aggregation, and belongs to the field of industrial wireless network communication. For the industrial wireless network that supports data packet aggregation, the time slot and channel resources of the network are configured by using the scheduling method combining the main link and the additional link to meet the certainty that the data stream reaches the destination device within the deadline. transmission needs. The invention schedules the links channel by channel in each time slot, selects the link with the smallest conflict slack as the main link, uses the data packet aggregation function to select additional links in the remaining links, and makes the data packets follow the main link The additional links are selected based on the additional link scheduling method that prioritizes the conflict slack, the additional link scheduling method that prioritizes the largest number of aggregated packets, or the additional link that considers the combination of packet aggregation and conflict slack. scheduling method. The invention can reduce the energy consumption of the network and improve the success rate of scheduling.
Description
technical field [0001] The invention belongs to the technical field of industrial wireless network communication, and relates to an industrial wireless network deterministic scheduling method supporting data packet aggregation. Background technique [0002] Industrial wireless network is a network technology used for data exchange between factory automation equipment. It has the characteristics of low cost, flexible deployment, high reliability and easy maintenance. It plays an important role in the monitoring of industrial field equipment. Industrial wireless networks have real-time and deterministic requirements for data stream transmission. The data stream must be transmitted to the destination device within a strict deadline, otherwise production efficiency will be reduced, and even security incidents will occur. The international standards that have been developed are WirelessHART, WIA-PA, WIA-FA, ISA100.11, and 6TiSCH. [0003] There is a real-time requirement for dat...
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IPC IPC(8): H04W72/04H04W72/10H04L5/00H04W84/18
CPCH04W72/0446H04L5/001H04W84/18H04W72/53H04W72/56Y02D30/70
Inventor 王恒谭帅余蕾
Owner CHONGQING UNIV OF POSTS & TELECOMM
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