Tramcar real-time data acquisition system based on Labview and Modbus/TCP communication protocol

Abstract

The invention discloses a real-time data acquisition system based on Labview and Modbus / TCP (transmission control protocol) communication protocol. The system comprises a main communication module anda data processing and saving module, a Labview software queue message processor template is used as a basis, a foreground page adopts an Ethernet communication program, a database access reading program and a graphic waveform display control in a Labview function library, and a back-end database adopts a MySQL database to construct a big data processing and technical service mode. Compared with the traditional man-machine interface development in which a Modbus I / O server needs to be established, the system development steps are simpler, and compared with the serial port communication, the Ethernet networking range is wide, the compatibility is good, the anti-interference capability is high, and the practical application requirements of large system data communication traffic, efficient transmission and the like are met. The system is installed on an industrial computer, can be debugged and operated independently, builds communication connection with a vehicle depot energy managementsystem through a TCP / IP protocol, obtains the corresponding energy consumption data through a question and answer type transmission protocol Modbus, and provides the powerful support for the modern tramcar energy consumption management.

Description

technical field [0001] The invention belongs to the technical field of tramcar energy-saving management, in particular to a tramcar real-time data acquisition system based on Labview and Modbus / TCP communication protocol. Background technique [0002] In recent years, with the continuous advancement of urbanization in my country and the continuous increase of urban population, many cities are facing problems such as environmental pollution, energy shortage and traffic congestion. The development of urban rail transit such as subways, light rails and modern trams can effectively alleviate these problems. Modern trams are the first choice for many small and medium-sized cities to develop urban public transportation due to their advantages of environmental protection, energy saving, low noise and low construction costs. However, due to factors such as large passenger capacity and lack of effective energy-saving management solutions, the energy consumption of modern tram vehicle...

AI Technical Summary

Problems solved by technology

In the traditional human-machine interface (HMI) development process, it is necessary to establish a Modbus I / O server, and the development steps are complicated. In addition, the serial port communication is poorly adaptive and the communication efficiency is low.

Images