Construction method for aircraft state monitoring wireless sensor network

A wireless sensor network and aircraft technology, applied in network topology, wireless communication, instruments, etc., can solve problems such as no application, achieve the effect of increasing system flexibility, reducing field connection and additional weight, and facilitating unified management

Inactive Publication Date: 2016-11-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Construction method for aircraft state monitoring wireless sensor network
  • Construction method for aircraft state monitoring wireless sensor network
  • Construction method for aircraft state monitoring wireless sensor network

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specific Embodiment approach 1

[0041] The specific embodiment one, the establishment method of wireless sensor network of aircraft state monitoring, the present invention adopts Contiki operating system as development environment, uses the topology construction of RPL routing protocol to carry out the self-organization of wireless sensor network, and sensor node selects the most by routing measure Optimal path, so as to find the parent node, realize the function of data transmission and aggregation.

[0042] The present invention mainly designs a dedicated sensor data protocol to make the data more standardized and facilitate data classification, analysis and processing. The present invention realizes a sensor node ad hoc network method for aircraft state monitoring, uses the RPL routing protocol to realize neighbor discovery, that is, the function of finding adjacent parent nodes, and achieves the purpose of converging sensor data to the main node through the central node.

[0043] 1. Sensor data protocol ...

specific Embodiment approach 2

[0060] Specific embodiment two, combine image 3 Describe this specific embodiment,

[0061] 1. Mount 5 kinds of sensors on the wireless sensor node, transplant the Contiki operating system, program the driver, etc. on the node, deploy the terminal nodes in different locations, connect the master node to the main control computer, and build Distributed measurement system based on wireless sensor network;

[0062] 2. Create sensor transmission data according to the sensor data format defined in the invention. Various types of sensor data are transmitted in the above format, and judge whether the data is valid data through the frame beginning and sensor status. If it is not valid data, re-collect the data;

[0063] 3. Ad hoc network based on RPL routing protocol. By discovering neighbors, updating its own neighbor table, calculating the rank depth according to the OF function, calculating the relative distance between the node and the root, and selecting the appropriate neighb...

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Abstract

The invention discloses a construction method for an aircraft state monitoring wireless sensor network, relates to a construction technology for the aircraft state monitoring wireless sensor network, and aims to construct a wireless sensor network on an aircraft in order to meet the demand of aircraft state monitoring. The method comprises the following steps that: a terminal node transmits a DODAG (Destination Oriented Directed Acyclic Graph) Information Solicitation (DIS), and collects information of all neighbor nodes within a range; the neighbor nodes start to transmit DODAG information object (DIO) packets after the DIS is received; a request node caches all the received DIO packets, updates a neighbor table of the request node, calculates relative distances between the neighbor nodes and a root according to a calculation result of a target function, and selects a proper node; meanwhile, nodes receiving a route request establish backward paths for sub-nodes, and transmit DODAG advertisement object (DAO) packets to selected father nodes to instruct the father nodes that the nodes are sub-nodes of the father nodes; and the father nodes transmit the DAO packets to father nodes of the father nodes after updating routing tables of the father nodes till the main node. The method is suitable for aircraft state monitoring occasions.

Description

technical field [0001] The invention relates to a wireless sensor network construction technology for aircraft state monitoring. Background technique [0002] During the operation of the aircraft in orbit, it is an important task to monitor the state of the equipment on it. However, due to the complex and heavy monitoring work, the existing flight test system has problems such as many test parameters, complicated leads, large additional weight, lack of flexibility, low scalability and low intelligence, and when different sensors acquire sensor data , the time required is inconsistent, and the data types are not the same, which causes the trouble of data collection and classification processing. [0003] Wireless sensor network (wireless sensor network, WSN) is a wireless network composed of a large number of sensor nodes capable of data perception, signal processing and communication. The sensor nodes have the characteristics of small size and low cost. , has been widely u...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W40/24H04W84/18G08C17/02
CPCH04W40/02G08C17/02H04W40/248H04W84/18
Inventor 彭宇刘连胜史欣田潘大为彭喜元刘大同
Owner HARBIN INST OF TECH
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