Research On The Design And Test Of Sensor Interface Standardization Model In Agricultural IOT

The rapid development of agricultural IOT development brings unprecedented opportunities and challenges for the sensor industry and then the technology problem of sensor technology has gradually revealed. The sensors have diversified interface,various electrical parameters. The characteristic parameters and their expression are not unified. All of these reasons result in the high cost and integration, maintenance, expansion of the sensor hardware system. On the other hand, diversity of access interface of sensor node causes for the poor interoperability and reuse problem. On the basis of collection and analysis of a large number of sensors,agricultural sensor characteristic parameters,which are general and applicable,are summed up. Further,agriculture sensor interface model is proposed and the model system is designed and achieved.The system can realize the following functions:testing the sensor interface file configuring and displaying the parameters and so on. This paper mainly contains the following content:1. To determine the parameters of sensors in agriculture. By collecting and analysing a large number of agricultural sensor parameters,these nine characteristic parameters are determined. They are function, capacity factor, the way of power supply, environmental temperature, humidity, range of error, response time, dustproof level and waterproof level.2. To build the agricultural sensor interface model. On the basis of agricultural sensor parameters,the agricultural sensor interface model is established by using UML.According to the concept of IEEE1451 TEDS,the files of data description, which are XML file and binary format file, are proposed to describe the sensor and interface information.3. To design and implement agricultural IOT with sensor interface testing and application platform. On the basis of agriculture sensor interface model,the platform of sensor interface testing and application is designed and implemented by using lab VIEW software tools. Experiments show that the platform can accurately test the file of data description,display the test results, complete the configuration and display function of agricultural sensor parameters.