The Design & Implementation Of Standardization Of Sensor Interface

The Internet of things will be the trend of IT industry development trends in the long term. Growing demand for digital convergence asks for higer requirements for the openness and interoperability of sensors, which is the core element of perception level. The thesis will discuss the key issues of standardization of the sensor interface, which involves the following aspects:1) The thesis analyzes the development strategy and the standard system of the existing sensor interface / network standards, specify the design goals of sensor interface standardization system, put forward the overall design of sensor interface standard model on this basis;2) Based on the principle of hard and soft modular separation, the sensor interface standard is divided into signal interface and data interface. The signal interface uses the sensor's output signal as the classification basis and gives a regulated statement for the output signal of sensor and its wiring;the data interface is divided into two aspects, one is the description of the data of sensor nodes, such as access to the corresponding analog output sensors from the standardized interface module, the other is the description of sensor data, gives part of the modeling template for the data interface;3)The thesis states a standardized hardware interface module design basing the signal interface and implements the actual design of the current type, voltage, and digital I/O module, the corresponding hardware selection and circuit design and implementation; the software design of standardized interfaces Module, detailed description of the firmware code design are also carried out. In addition to traditional serial port, the Ethernet interface, embedded UDP protocol, the interface provides the convenience of later development;4) The thesis also initially discussed the application of the standards scene, from the hardware to the development platform.