Network control system of large road maintenance machine

Abstract

The invention discloses a network control system of a large road maintenance machine. The system comprises 1-n bottom modules, 1-t network modules and 1-m display modules, wherein the modules are interconnected through a field bus network; each bottom module comprises a power module, a pulse recognition module, a main digital input module, a gateway module, a main analog input module and a main digital output module which form a communication backbone network as well as a digital input extension module, an analog input extension module and a digital output extension module which form a communication I / O subnetwork. The communication I / O subnetwork is extended by any one or more of the main digital input module, the gateway module, the main analog input module and the main digital output module. The technical problems that the cost of extended input and output points of existing systems is higher, secondary construction of the system network structure is complicated and the cost performance of hardware is low can be solved.

Description

technical field [0001] The invention relates to the field of railway engineering machinery, in particular to a network control system for large-scale road maintenance machinery based on a two-stage CAN network. Background technique [0002] As the core technical field of railway track maintenance engineering machinery, the electrical system of large-scale railway track maintenance machinery is responsible for various operations and auxiliary control tasks of the whole vehicle. It is the brain of the whole vehicle and directly directs various operations, running and braking actions. From the perspective of electrical control, it involves many aspects such as analog control, digital control, computer software, hardware, electrical control, and laser technology. [0003] In the prior art, the closest to the application of the present invention is the invention filed by the applicant and Zhuzhou CSR Times Electric Co., Ltd. on March 14, 2012, and announced on April 23, 2014, wit...

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