Hardware framework of sensor node

Abstract

The invention provides a hardware framework of a sensor node, which takes a microprocessor as a main control unit to realize the control of a communication protocol and the processing of various applications. Meanwhile, the microprocessor has a certain storage function and is responsible for storing sensing data, various frame information and various application related numerical values preset bya user; the functions of the other modules are as follows: the sensor is responsible for realizing data acquisition; the radio frequency transceiver performs wireless transmission of data; the energysupply unit supplies energy to the radio frequency transceiver, the microprocessor and the sensor. The user interface is responsible for communication connection between the node and an upper-layer management terminal, including setting of application parameters and reading of related information; a software architecture system is arranged in a processing unit of the node microprocessor, an energybalancing module is added in a data processing layer of the system, and an energy balancing method is executed in the energy balancing module; the method has the advantages that saving and balancingof energy consumption are considered simultaneously, so that the network service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a hardware framework of a sensor node. Background technique [0002] The Internet of Things (IoT) is known as the third wave of the development of the global information industry after computers and the Internet. Its concept is developed from wireless sensor networks. Therefore, wireless sensor networks are considered to be the industrial core of the development of the entire Internet of Things. [0003] As the basic component of Wireless Sensor Network (WSN), sensor nodes are deployed in the monitoring area, and the collected data are self-organized and routed to the sink node in the form of wireless communication. Via Ethernet or satellite, the data is transmitted to the management node and saved. The client can configure and manage the entire network through the management node, and issue monitoring tasks. This operating system constitutes the basic form of w...

AI Technical Summary

Problems solved by technology

However, both routing and topology control mechanisms require a large amount of communication energy consumption, that is, frequent information exchange between nodes, which greatly reduces the effect of extending network life.

On the other hand, the research on the data processing algorithm in the network focuses on the reduction of the total energy consumption of communication on a single node or link, and does not take into account the imbalance of energy consumption (see authorized patents Yang Huazhong, Ying Beihua, Liu Wei et al.; A compressed decision method for reducing energy consumption in wireless sensor networks; China, ZL200810238934.3; 2009-10-21)

Therefore, the current joint optimization problem that combines data processing in the network and energy balance of the entire network has not been well solved. Energy saving and balance need to be considered at the same time to truly achieve the purpose of network life extension.

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