A kind of openapi conversion system and method based on multi-modbus bus protocol

Abstract

The invention discloses an OpenAPI conversion system and method based on multiple Modbus bus protocols, adopts the independent processing mechanism of each module, and establishes a connection state with the manufacturer's equipment under various bus types Modbus protocols through serial port communication, TCP communication and data access modules ; Realize the conversion of manufacturer data and upper-layer application system data through the data conversion module, so that the third-party system does not need to be re-developed for data conversion; through custom data type coding to adapt to the storage mode of different ends of the manufacturer; through the Modbus protocol analysis module for real-time monitoring The connection state with the manufacturer's equipment can automatically re-establish the connection when there is a connection failure; the present invention realizes the adaptation of the Modbus standard protocol for unified deployment through configuration, and can simultaneously support multiple Modbus TCP / IP bus devices and multiple Modbus serial buses equipment to minimize or even avoid secondary development; and data collection and reporting are unified to maintain data consistency; by effectively filtering and reporting data, the pressure of data processing on 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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