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Data transmission method based on weighted distance and compact routing

A data transmission method and weighted distance technology, which are applied to services, electrical components, wireless communications, etc. based on specific environments, can solve the problems of complex calculation of weighted information, low transmission efficiency, and inflexibility, so as to increase the computational burden and avoid information. The effect of leakage and safety improvement

Pending Publication Date: 2021-10-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to propose a solution for the current technical situation of complex and inflexible calculation of weighted information based on weighted routing, which leads to large time delay, and low transmission efficiency of cross-layer data transmission due to frequent switching between the physical layer and the link layer. A Data Transmission Method Based on Weighted Distance and Compact Routing

Method used

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  • Data transmission method based on weighted distance and compact routing
  • Data transmission method based on weighted distance and compact routing
  • Data transmission method based on weighted distance and compact routing

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Embodiment 1

[0057] This embodiment describes the process of route establishment and data transmission in a data transmission method based on weighted distance and compact routing in the present invention, and the specific implementation in three operation modes relying on the data transmission system.

[0058] Among them, the process of establishing the routing table is as follows: figure 1 Shown: Initialize node ID, bandwidth, maximum transmission distance, energy, number of signal transmissions, maximum number of transmissions; calculate the actual distance to the destination node; mix the weighted distance, and give the calculated mixed weighted distance to the routing table to build the module; judge the signal Whether the number of transmissions has reached the upper limit, if yes, the routing table is established, if not, the neighbor node information collection unit sends bandwidth, ID and energy query signals to the surroundings, and the number of signal transmissions is increased ...

Embodiment 2

[0079] The data transmission method has the following three modes of operation:

[0080] 1) Fire mode: For forest fires, the core control unit adjusts the working cycle of each module in the data transmission system to less than or equal to 10 minutes to collect sensor groups and positioning information and report. Specific implementation: At the emergency moment of the fire scene, after the node is initialized, the node movement judgment module makes a judgment every minute. After the judgment is successful, it sends a signal to the core control unit, and then controls the positioning unit to transmit the position information to the information encoding unit. Information collection The unit sends the location information of the information joint node collected every minute to the information encoding unit for encoding and packaging. After encoding, the data packet is added to the routing table, and the collected information is transmitted to the remote through the wireless com...

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Abstract

The invention relates to a data transmission method based on weighted distances and compact routing, and belongs to the technical field of wireless network routing and data transmission. The method comprises the following steps: after initializing each parameter of a node, calculating a weighted distance according to linear superposition of a distance, a bandwidth, channel quality and energy, sending a query signal and establishing routing; collecting information, coding and packaging the collected information, controlling by a control module, and transmitting the information through a data transmission module; and judging whether the node has a neighbor node, whether enough energy exists and whether the neighbor has other neighbor nodes to decide whether to transmit data or delete the neighbor node from a routing table, which can be correspondingly modified when the distance between the nodes changes, namely, the nodes move, and channels, bandwidths and energy change. The weighted distance of the method is hybrid dynamic weighting, so that the operand is greatly reduced; compact routing and data transmission are adopted, so that the transmission efficiency is greatly improved; and meanwhile, information leakage and interception can be avoided, and the security of information transmission is improved.

Description

technical field [0001] The invention relates to a data transmission method based on weighted distance and compact routing, and belongs to the technical field of wireless network routing and data transmission. Background technique [0002] With the advancement of technology, wireless sensor networks are used more and more widely, such as for emergency response, early warning and environmental monitoring. Sensor nodes are widely used in industry due to the low cost of many types of sensors, ease of deployment, and low power consumption. Most of the sensor nodes are placed in the way of aircraft dropping, which can greatly improve the transmission efficiency in harsh conditions or in the wild. [0003] Since sensor network nodes usually use batteries to supply energy, in practical applications, node power cannot be updated for a period of time, so that the survival time of the network is closely related to energy consumption. In addition, in emergency application scenarios su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/38H04W40/24H04W84/18
CPCH04W4/38H04W40/246H04W40/248H04W84/18Y02D30/70
Inventor 于珊平武祎冯立辉高瑞雪陈佩雨夏兆宇辛喆韩航程李向梅王瑞卢继华
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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