Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Scheduling method of reliable transmission of mixed data streams in industrial wireless sensor network

A sensor network and industrial wireless technology, applied in wireless communication, network topology, electrical components, etc., can solve problems such as coexistence network interference, interference, and unstable communication link quality, and achieve the effect of ensuring fairness and reliability

Active Publication Date: 2018-05-29
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in an industrial environment there is a large amount of interference
These interferences mainly come from two aspects: on the one hand, the drastic changes in the temperature and humidity of the industrial environment, coupled with the frequent movement of equipment and staff, make the quality of the communication link extremely unstable; on the other hand, due to the ISM 2.4GHz frequency band Openness, wireless LAN, Bluetooth, ZigBee and other wireless networks all work in this frequency band, and the interference between coexisting networks in the industrial environment is very serious

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Scheduling method of reliable transmission of mixed data streams in industrial wireless sensor network
  • Scheduling method of reliable transmission of mixed data streams in industrial wireless sensor network
  • Scheduling method of reliable transmission of mixed data streams in industrial wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0050] The method of the invention fully considers the problems that there are many interference signals on the industrial site, serious data packet loss, and the arrival time of aperiodic data cannot be estimated, and proposes a scheduling method that comprehensively considers periodic data and reliable transmission of aperiodic data. This method takes the reliability and fairness of data transmission as the index to measure the performance of the scheduling method, uses the method of circular statistics to reserve time slots for aperiodic data, and uses the method of uniform distribution to allocate time slots for periodic data, comprehensively considering the waiting mechanism and The preemption / drop mechanism provides an effective scheduling scheme for the tra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a scheduling method of reliable transmission of mixed data streams in an industrial wireless sensor network, a gateway allocates time slots for periodic data and non-periodicdata sent by each field device, and the time slots are used for each field device to complete data transmission according to the time slot allocation, allocation comprises the following steps: modelling for the periodic data and the non-periodic data; reserving the time slots for the non-periodic data through a cyclic statistics method; and allocating the time slots for the periodic data. The method provided by the invention takes data transmission reliability and fairness as indexes for measuring performance of the scheduling method, reserves the time slots for the non-periodic data through the cyclic statistics method, allocates the time slots for the periodic data through an even allocation method, comprehensively considers a waiting mechanism and a seizing / discarding mechanism and provides an effectively scheduling scheme for transmission of the mixed data streams.

Description

technical field [0001] The invention relates to a scheduling method for industrial wireless sensor networks, in particular to a scheduling method for reliable transmission of mixed data streams in industrial wireless sensor networks. Background technique [0002] With the advancement of wireless network technology and the improvement of the performance of electronic devices, wireless sensor network technology has emerged rapidly and has been widely used in our daily production and life. Among them, industry is one of the important fields of wireless sensor network application. In industry, compared with traditional wired communication, wireless communication has the following advantages: (1) In terms of cables, there is no need to lay cables, which reduces the workload and corresponding costs, and there is no need to worry about cable wear and aging. (2) In special industrial scenarios, such as some mobile and unwiring scenarios, the use of wireless communication is undoubt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W72/04H04W84/18
CPCH04W72/0446H04W72/1221H04W84/18
Inventor 梁炜石华光郑萌于海斌彭士伟赵有健
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com