Wireless sensor network node

Abstract

The invention discloses a wireless sensor network node which comprises a receiving and transmitting module, a control module, a sensing module and a power management module, wherein the receiving and transmitting module communicates with a 2.45 GHz microwave frequency band and reads an electronic tag; the control module is based on a wireless communication standard of a 2.4 GHz frequency band and used for merging information data of the receiving and transmitting module and the sensing module and performing low-velocity wireless transmission; the sensing module is used for acquiring environmental information data; the power management module is used for carrying out power supply control on the modules. The wireless sensor network node disclosed by the invention is combined with a WSN (Wireless Sensor Networks) node design of RFID (Radio Frequency Identification), can be used for identifying articles and acquiring environmental information of the articles, has an extra function of reading and writing an RFID tag of an ISO18000-4 protocol under the 2.45 GHz microwave frequency band, is compatible with temperature and humidity information acquisition, overcomes the defects of single function and small application scope of a traditional WSN node and has the advantages of low power consumption and few occupied resources.

Description

technical field [0001] The present invention relates to an Internet of Things system, in particular to a wireless sensor network node. Background technique [0002] Wireless sensor network WSN (Wireless Sensor Networks) technology integrates communication technology, sensor technology and computer network technology, and is a popular research of multidisciplinary interdisciplinary. As one of the most important technologies in the 21st century, it first began in the 1970s and was first used by the US military on the Vietnam battlefield. Since the 1980s, the U.S. Department of Defense has successively invested a large amount of funds in the research of "beyond visual range" battlefield monitoring Sensor. system. The symbol of the official rise of wireless sensor network technology is that it was listed as one of the 21 most potential and influential technologies by the world-renowned business magazine "Business Week" in 1999. The wireless sensor network is a multi-hop self-...

AI Technical Summary

Problems solved by technology

Therefore, the complexity of the network system requires high energy consumption to maintain the existence of the network

[0006] In the practical application of RFID, the tags attached to the items only identify the items or store a small amount of basic information. It is difficult for the system to understand the information changes between it and the environment through the tags, and it has its own transmission distance limitation.

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