Research And Implementation Of Heterogeneous Sensor Access Framework And Its Optimization

With the rapid development of information technology and computer technology, large-scale, multi-class and high-precision sensors are used in more and more scenes. At present, there are many differences in the communication link, communication protocol, data format and so on,which leads to the heterogeneity of the sensor. In addition, with the development of the Internet of Things and the increase in business needs,the size of sensors has been growing. As the amount of data generated by the sensor is huge, the analytical framework running on the standstill can not handle the perceptual data in time. Therefore, how to make the data volume huge, a wide range of sensors quickly access the system and realize the processing of distributed sensor data has become a key problem in the development of Internet of Things.In order to solve the above problems, this paper used the distributed processing engine Flink and Spring MVC framework, proposed heterogeneous sensor access scheme, and designed to achieve a heterogeneous sensor access framework. The heterogeneous sensor access frame is capable of dynamically generating sensor adapters based on the user-registered sensor information model, which is distributedly executed over the distributed processing engine Flink to enable heterogeneous sensor access and resolution. At the same time, the post-resolution perceptual data is encapsulated and distributed to the Kafka messaging system, and the Internet application can acquire the perceptual data by subscribing to the sensor subject. In addition, in order to improve the fault tolerance of heterogeneous sensor access frame, this paper designs the cache strategy of sensor-aware data. The cache strategy can dynamically cache the sensor-aware data according to the running index of the adapter task to realize the performance of the heterogeneous sensor access frame optimization.In this paper, we introduce the heterogeneous sensor access framework in three aspects. Firstly, the research background and significance of the heterogeneous sensor access framework are introduced.Then, according to the requirements of heterogeneous sensor access framework, the functional modules of the system are designed and realized.Finally, the functional modules of the heterogeneous sensor access frame are tested, and the overall performance of the system is tested.