Device and method for collecting and publishing wireless sensor network data

Abstract

The invention provides a device for collecting and publishing wireless sensor network data. The device comprises a processing unit, a data center-oriented communication unit, a storage unit and a power supply unit which are connected with the processing unit, wherein the data center-oriented communication unit is used for performing bidirectional data communication between the device for collecting and publishing wireless sensor network data and a data center; the processing unit is used for receiving a data issuing customizing command from the data center-oriented communication unit, resolving, generating a data issuing customizing file, and storing in the storage unit; and the processing unit is further used for receiving data from a wireless sensor node of the data center-oriented communication unit, resolving, and transmitting filtered data to the data center-oriented communication unit according to the data issuing customizing file. The invention further provides a corresponding data collecting and issuing method. According to the device and the method, resource waste can be avoided while user requirements are met, and the complexity and cost are low.

Description

technical field [0001] The present invention relates to the technical field of embedded system and wireless sensor network, in particular, the present invention relates to a wireless sensor network data collection and publishing device and method. Background technique [0002] The wireless sensor network is composed of a large number of cheap micro sensor nodes deployed in the monitoring area, and forms a multi-hop self-organizing network through wireless communication. In recent years, wireless sensor networks have been widely used in environmental monitoring and protection, medical care, military, family and other fields due to their low power consumption, low cost, distributed and self-organizing characteristics. [0003] A sensor network usually consists of sensor nodes, sink nodes and data centers. Among them, the sensor node collects the data (such as temperature, humidity, etc.) in its monitoring area, and sends it to the sink node through wireless multi-hop. Since ...

AI Technical Summary

Problems solved by technology

The above three types of methods all have the following defects: 1) Regardless of whether the user needs it, the sensor node will collect data according to the established data collection cycle and data type, and send all the collected data to the sink node, which often leads to waste of resources , which is not conducive to saving node energy consumption and communication overhead

2) Whether the user needs it or not, the aggregation node will push all types of data obtained from all sensor nodes to the data center according to a fixed cycle, resulting in waste of resources

Moreover, it is easy to see that the above two types of methods (1) and (2) need to install customized software in the data center, thus increasing the complexity and cost of data collection and publishing of wireless sensor networks, which is not conducive to the promotion of wireless sensor networks application

Although the method of type (3) reduces the complexity of data collection and publishing of wireless sensor networks, the browser itself cannot automatically refresh the display content as the data is updated, and the user needs to manually refresh the browser to display the latest sensor information. Data, on the one hand, is not convenient for users to use, on the other hand, it cannot display the latest sensor data in time

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