Method and system for measuring sensor nodes and sensor network

Abstract

The invention relates to a method and a system for measuring sensor nodes and a sensor network. The measuring system comprises measuring devices and an upper management device, wherein the measuring devices are combined with the sensor nodes, and the upper management device is used for receiving data transmitted by the measuring devices and controlling the measuring devices; and each measuring device comprises a processing unit, a data storage unit, a specific detection module, a network communication unit and a power supply unit. In the invention, the measuring devices can be formed into a self-organized network to carry out multi-hop data communication and transmit measurement data and control information. The measuring devices uses a network different from the network of the measured sensor nodes to carry out measurement data communication, consequently, the interference of measurement data streams on the sensor network of the measured sensor network nodes is prevented, and the accuracy of the data of the measured sensor network is increased.

Description

technical field [0001] The invention relates to a sensor node and a sensor network, in particular to a measurement method and system for the sensor node and the sensor network. Background technique [0002] In the scientific research of sensor networks, it is necessary to measure various performance indicators of nodes working in the network, such as: node operating status, remaining battery energy, status of sending / receiving data, and node data collection status. At the same time, in the process of studying the network operation status, it is necessary to analyze the data flow in the network. During the process of sending data and receiving data, the nodes analyze the network throughput rate, channel occupancy rate, and network data transmission process by measuring the network data transmission process. flow congestion, etc. In the past sensor network measurement system, the nodes themselves collect their own information, such as the statistics of network traffic, and th...

AI Technical Summary

Problems solved by technology

First of all: the measurement content is the internal working status of the sensor node processor, such as CPU occupancy rate, unit execution cycle and power consumption and other parameters, but the direct measurement process in the sensor node itself will consume its own CPU resources, power consumption, etc. It will cause certain errors to the measurement results; secondly, after the sensor node measures itself, it needs to send the test data to the receiving end for storage and analysis by the server, so in the process of data transmission, the channel of the existing network must be occupied for test data The transmission, therefore, will have a certain impact on the network transmission channel

If the sensor node itself is used to measure its own network performance, such as network throughput, network bandwidth, network congestion, and node neighbor status, it will inevitably generate a certain amount of data flow in the network due to its own measurement, and this kind of data flow belongs to the network. Unnecessary data flow during normal transmission, so in the measurement situation, due to the existence of this kind of data flow, it will affect the network transmission, thus making the measurement result inaccurate

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