OpenAPI conversion system and method based on multi-Modbus bus protocol

Abstract

The invention discloses an OpenAPI conversion system and method based on a multi-Modbus bus protocol, and the system comprises the steps: employing an independent processing mechanism of each module,and building a connection state with manufacturer equipment through a serial port communication module, a TCP communication module, and a data access module under a plurality of Modbus protocols; achieving conversion between manufacturer data and upper-layer application system data through the data conversion module, so that data conversion does not need to be carried out again when a third-partysystem is in butt joint; adapting different-end storage modes of a manufacturer through self-defined data type codes; using a Modbus protocol analysis module to monitor the connection state with equipment of a manufacturer in real time, and automatically reestabihsing a connection when a connection fault occurs. According to the invention, through configuration, the Modbus standard protocol is adapted to perform unified deployment, a plurality of Modbus TCP / IP bus devices and a plurality of Modbus serial bus devices can be supported at the same time, and secondary development is reduced to themaximum extent or even avoided; data acquisition is reported in a unified manner, and data consistency is kept; and by effectively filtering the reported data, the data processing pressure of the upper application system is reduced.

Description

technical field [0001] The invention belongs to the technical field of intelligent buildings, and more specifically relates to an OpenAPI conversion system and method based on multiple Modbus bus protocols. Background technique [0002] There are a large number of equipment control and data acquisition devices on the site of building intelligence and industrial control, such as lighting controllers, access control controllers, fire controllers, smart meter collectors, smart water meter collectors, and environmental monitoring data collectors. Generally support the Modbus protocol. As one of the most mainstream communication protocols in the field of intelligent building and industrial control, Modbus has the remarkable advantages of being standard, open, widely used, and supporting various types of electrical interfaces. [0003] For Modbus equipment management, control and data acquisition, the prior art practice is that each application system independently develops adapt...

AI Technical Summary

Problems solved by technology

Due to the independent control and polling of Modbus devices by each system, the operating load of Modbus protocol devices is increased, the efficiency of device collection is low, and the consistency of device data in different application systems is extremely poor; at the same time, because Modbus does not define a data storage mode, some manufacturers Big-endian storage is used, and some manufacturers use little-endian storage, which increases the difficulty of adaptation

[0004] In terms of Internet applications in the field of intelligent buildings, due to the large number of devices, various bus types, cumbersome configuration management, and complex device management, the Modbus protocol adaptation development cycle is long, which will greatly reduce the development efficiency of upper-layer applications and increase development costs.

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