DC motor servo driving system based on network

A technology of servo drive and DC motor, applied in the transmission system, electrical components, electrical digital data processing, etc., can solve the problems such as inconvenient joint control of multi-axis motor drive system, difficulty in memory and bus expansion, and slow data transmission speed. Achieve the effect of outstanding modularity, easy application and maintenance, and less communication connections

Inactive Publication Date: 2003-11-26
BEIHANG UNIV
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Problems solved by technology

The difference between this driving circuit and the patent of the present application is that the controller is separated from the single chip microcomputer, and is connected through the I / O interface, so that the speed of data transmission is slow, and there are few information channels (8 bits), no networking function, memory and bus It is difficult to expand, and it is not convenient to realize the joint control of multi-axis motor drive system

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  • DC motor servo driving system based on network
  • DC motor servo driving system based on network
  • DC motor servo driving system based on network

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Embodiment Construction

[0031] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0032] The invention is a network-based DC motor servo drive system, which includes a PC, a servo drive system, a DC motor and a code disc. The servo drive system is mainly composed of a control module, a drive module and a network interface module, and the three modules are connected into one body through two 40-pin sockets. On the basis of complying with the RS485 communication protocol, the single-line serial communication and serial network connection between the PC and the multi-axis drive mechanism are realized through the CAN bus interface. The networking mode of the multi-axis system is one master and multiple slaves, that is, only one control module is the master module, the master module is the control module connected to the PC, and the other modules are slave modules, and the master-slave relationship cannot be changed at will (such as fig...

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Abstract

The DC motor servo driving system based on network includes control module, drive module and network interface module connected into one integral via two 40-pin connectors. The servo driving system constitutes via RS485 and CAN bus interfaces one network control system with single or several servo driving units connected to PC and other control equipment to realize drive and control of multi-axis mechanism in serial network control mode. DSP obtains motion commands and motion parameters from the network interfaces, performs motion servo calculation of the sample data of the motor code wheelsignal or motor armature current by means of software control program to produce PWM output signal and complete the output control of the motor driving loop and the serial coordinational control of multi-axis drive via PWM signal. The present invention is suitable for robot, numerically controlled machine tool and production line.

Description

technical field [0001] The invention relates to a motor drive device, in particular to a network-based DC motor servo drive system, which is suitable for various types of motor-driven motion control such as robots, numerical control machine tools, and production lines. Background technique [0002] Traditional high-precision motor motion control has been developed independently of each other along the road of separating the controller and the driver. The traditional motor driver first adopted the method of analog circuit control. With the development of microelectronics technology, digital and analog control appeared, and then with the development of DSP (Digital Signal Processor, digital signal processor) technology and large-scale application environment, There is a fully digital control motor driver, and there is a special DSP for motor control. The emergence of special DSP for motor control provides a broad development space for all-digital m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12G05D3/20G06F13/00G06F13/38H02P7/06H04L29/00
Inventor 王田苗魏洪兴黄荣瑛张玉茹孙恺刘敬猛
Owner BEIHANG UNIV
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