Management method and management system for sensor nodes in sensor network and gateway

Abstract

The invention discloses a management method and a management system for the sensor nodes in a sensor network and a gateway. The system comprises a collection module, a report module and a node management module, wherein the collection module is used for collecting the electric quantity information and pick-up information reported by all sensor nodes in an activated state in the sensor network; the report module is used for reporting the pick-up information of the sensor nodes to the node management module, and reporting the electric quantity information of the sensor node meeting the report conditions to the node management module if the electric quantity information of at least one sensor node meets the report conditions; the node management module is used for closing or activating the sensor nodes in the sensor network according to the electric quantity information or the electric quantity information and pick-up information of the sensor nodes reported by the report module. According to the system, by judging the electric quantity information and pick-up information of the nodes, the working state of the sensor nodes is flexibly controlled, the resources of sensor nodes are reasonably utilized, the number of sensor nodes is controlled to avoid'shortage and waste', and the node pick-up efficiency is improved.

Description

technical field [0001] The invention relates to the field of wireless sensor network communication, in particular to a management method, system and gateway for sensor nodes in the sensor network. Background technique [0002] In recent years, with the rapid development of technologies such as wireless communication, integrated circuits, sensors, and micro-electromechanical systems (MEMS), mass production of low-cost, low-power, and multi-functional miniature wireless sensors has become possible. These miniature wireless sensors have wireless Functions such as communication, data acquisition and processing, and collaboration, the wireless sensor network (hereinafter referred to as the sensor network) is organized by many of these sensor nodes. The nodes of the sensor network can be randomly or specifically arranged in the target environment, and they are self-organized through a specific protocol, and can obtain information about the surrounding environment and cooperate wit...

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Problems solved by technology

[0004] The importance of the acquisition efficiency of sensor nodes in the sensor network is self-evident. In a complex and changeable acquisition area, the number of nodes that meet the acquisition needs per unit time (can be set, such as several hours) changes with environmental factors. In this case, in order to ensure the integrity and accuracy of the collected data, a large number of sensor nodes are placed in a certain area, or the physical information is collected in a quantity exceeding the demand, resulting in a waste of sensor nodes

Another situation is that in order to save costs, a limited number of sensor nodes are arranged in the area, which can basically meet the collection requirements at ordinary times. When the physical environment changes and the collection data increases, the sensor nodes enter "busy hours", resulting in passive (Battery-powered) sensor node workload increases, power consumption accelerates, and it is easy to automatically shut down when the power is exhausted before the end of a collection cycle, which cannot meet the collection requirements or directly lead to errors in the collection information

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