Abstract description method suitable for Internet of Things application system interface and application thereof
An application system, the technology of the Internet of Things, applied in the field of abstract description of the interface of the Internet of Things application system, can solve the problems of difficult reuse of development results, inefficient communication and development, etc., so as to reduce communication and ineffective design and improve development. Efficiency, the effect of reducing workload
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Embodiment 1
[0036] The following describes the specific method of using the present invention to implement the interface between different parts of the system under different conditions.
[0037] Interface entity definition between gateway and terminal
[0038] This example mainly illustrates the description method of the interface entity through the process of determining the static attributes.
[0039] 1) Determine the southbound protocol and technical attributes of the callable interface. Possible values include UART (including ZigBee, Modbus, LoRa, etc.), SPI (including various sensors, ZigBee, LoRa, etc.), I2C, TCP / UDP, etc.
[0040] 2) Determine the southbound configuration attribute of the callable interface, which is related to the configuration information specified by the specific protocol and technology, such as the port number of TCP / UDP, the register address of Modbus, the terminal address of LoRa and its gateway, and the network address of ZigBee Wait.
[0041] 3) Determ...
Embodiment 2
[0053] This example mainly illustrates how to use the present invention to standardize the dynamic feature description of the interface entity during actual interface realization.
[0054] RP_F / UART-AGENT is a kind of gateway southbound interface communication entity, which is accessed through the UART of the device (including the UART converted from USB). It can be connected to various modules or devices with asynchronous serial ports, and the external hardware interfaces can be: RS-232, RS-485, SPI, I2C, TTL level UART, etc. It has a proxy processor (STC15 or STC8 series) hardware and its embedded program, its main functions are as follows:
[0055] 1) Solve the plug-and-play problem of Linux or Windows serial port. Through this agent, no matter what kind of interface, which serial port or USB is connected to the gateway system, it can be identified and work normally, avoiding the process of manual configuration.
[0056] 2) Convert the interface level (for example, RS-322...
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