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Method for utilizing Ethernet frame clearance to realize sensing detection and overlying communication

A technology of Ethernet and frame gap, applied in the field of sensors, to achieve the effect of saving construction cost, low maintenance cost and low cost

Inactive Publication Date: 2012-05-16
许勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the deficiencies of existing intelligent sensing devices, the present invention proposes a method for realizing sensing detection and superimposed communication by using Ethernet frame gaps

Method used

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  • Method for utilizing Ethernet frame clearance to realize sensing detection and overlying communication
  • Method for utilizing Ethernet frame clearance to realize sensing detection and overlying communication
  • Method for utilizing Ethernet frame clearance to realize sensing detection and overlying communication

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Embodiment Construction

[0015] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0016] like figure 1 Shown is a schematic diagram of the use and connection of the smart sensor device. A set of intelligent sensing device designed by using Ethernet frame gap to realize sensing detection and superposition communication method. Among the figure (1) is other network data exchange devices such as switches or hubs, (2) is a network cable connecting (1) and (3), (3) is an intelligent sensing device, (41), (42), (43), (44), (45), (46), (47), (48) are connections (3) and (51), (52), (53), (54), (55), ( 56), (57), (58), (51), (52), (53), (54), (55), (56), (57), (58) are sensor probes or Network equipment, network cables (2), (41), (42), (43), (44), (45), (46), (47), (48) can be parallel network cables or cross network cables. The intelligent sensing device (3) sends the collected data to the database of the background PC thr...

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Abstract

The invention relates to the technical field of a sensor and particularly relates to a method for utilizing an Ethernet frame clearance to realize sensing detection and overlying communication. According to the method, the Ethernet frame clearance is utilized to realize the sensing detection and the overlying communication. An intelligent sensing device designed according to the method is capable of realizing active detection for remote equipment and monitoring for remote environment, without influencing an original network application and adding network wiring. The application of the method is wide in market prospect.

Description

Technical field [0001] The invention relates to the technical field of sensors, in particular to a method for realizing sensor detection and superimposition communication by utilizing the Ethernet frame gap. Background technique [0002] The following is an Ethernet frame format defined by the IEEE 802.3 standard: Preamble(7-bytes)Start Frame Delimiter(1-byte)Dest.MAC Address(6-bytes)Source MACAddress(6-bytes)Length / Type(2-bytes )MAC Client Data(0-n bytes)Pad(0-p bytes)Frame Check Sequence(4-bytes). Preamble: A prefix consisting of alternating 1s and 0s for synchronization. He gives the network time to listen to the signal on the network and decide whether to accept the data frame or generate a conflict. Start Frame Delimiter: The frame start delimiter, an 8-bit sequence consisting of 10101011, is used to indicate the start of the data frame. Destination&SourceMAC Addesses: Destination&Source MAC address, the destination MAC address field is used to indicate one or more d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L29/08G01R27/02
Inventor 许勇
Owner 许勇
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