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MAC (Media Access Control) layer communication method on basis of fire fighting emergency light

A communication method and fire emergency technology, applied in the field of communication, can solve the problems of Zigbee equipment, such as uncertain transmission time, transmission delay, power consumption and stability, and time system multiplexing without consideration, so as to shorten communication time and save The effect of high storage consumption and energy utilization

Active Publication Date: 2013-05-01
宁波飞拓电器有限公司
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Problems solved by technology

In this way, the node may not be able to grab the channel for a long time, or it may be impassable due to hidden terminal problems
Therefore, transmission delay, power consumption and stability are difficult to guarantee
[0005] 3. Since the transmission time of Zigbee equipment is uncertain, the power consumption utilization rate is low
However, the protocol is based on static TDMA technology and does not consider time-system multiplexing, so the system cannot be expanded and is not suitable for flexible deployment of fire-fighting equipment

Method used

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  • MAC (Media Access Control) layer communication method on basis of fire fighting emergency light
  • MAC (Media Access Control) layer communication method on basis of fire fighting emergency light
  • MAC (Media Access Control) layer communication method on basis of fire fighting emergency light

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Embodiment Construction

[0041] The present invention will be further described in detail below through embodiments in conjunction with the accompanying drawings.

[0042] The purpose of the present invention is to provide a more effective communication method between a fire emergency light and a remote monitoring terminal for the deficiency of the existing fire communication technology. The protocol stack architecture is shown in Table 1.

[0043] Table 1 Protocol Stack Architecture

[0044] application layer IETF CoAP / REST Engine transport layer UDP Network layer IPv6 / RPL adaptation layer 6LoWPAN data link layer GinMAC Based on STDMA RDC layer SICSLoWMAC physical layer EZPRO

[0045] The communication method is based on the space division TDMA technology, and the GinMAC protocol is modified and improved. Since the fire protection system protocol stack adopts a tree topology, each link in the network can be regarded as a communication proc...

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Abstract

The invention discloses an MAC (Media Access Control) layer communication method on the basis of a fire fighting emergency light. The MAC layer communication method comprises the following steps of: firstly, carrying out offline time slot planning and carrying out clock synchronization; secondly, carrying out node network access and elimination; then distributing a time slot; and finally, uploading and downloading data. According to the invention, a conventional fire fighting emergency light communication mode is upgraded to a novel self-organizing multi-hop protocol which is on the basis of a space division TDMA (Time Division Multiple Access) technology, uses an IPv6 (Internet Protocol Version 6) / 6LoWPAN technology as a protocol stack standard and uses a CoAP (Constrained Application Protocol) packet as a communication carrier; and compared with an original communication protocol, the novel self-organizing multi-hop protocol has various advantages.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a communication method for a fire emergency light and a remote monitoring terminal. Background technique [0002] Wireless sensor networks based on IEEE802.15.4 and their applications have been developing at a high speed and becoming more and more prosperous. From this, a series of standards and equipment such as WirelessHART (interoperable wireless communication standard) and Zigbee (two-way wireless communication technology) have been derived, which have been well applied in building monitoring, physiological state monitoring, agricultural monitoring and even In many fields such as underwater monitoring. However, the existing wireless sensor network standards have their own problems: [0003] 1. Most of the existing wireless sensor network standards use their own network protocols, that is, each node has its own ID, and the communication between the upper an...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L12/741H04L29/08H04J3/06H04W56/00H04W74/08H04W84/18H04L45/16H04L45/74
Inventor 杜明管冰蕾程凯韬姚树鹤邵岳军葛泉波
Owner 宁波飞拓电器有限公司
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