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Communication control circuit for laser tracker

A technology of laser tracker and communication control, which is applied in the direction of electrical program control, program control in sequence/logic controller, etc. It can solve the problem of lack of circuit testability design, lack of universal expansion function, inconvenient debugging and troubleshooting, etc. problems, to achieve the effect of enriching communication forms, strengthening the monitoring of running status, and improving the efficiency of debugging and troubleshooting

Active Publication Date: 2015-09-09
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
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AI Technical Summary

Problems solved by technology

But at present, the servo control circuit in the domestic self-developed laser tracker still has the following deficiencies: (1) There is no integrated communication control function of CANopen, TCP / IP, parallel communication and DA; (2) The control is affected by hardware and control algorithms The frequency is low; (3) There is no sequential start-stop or logic control function for the servo system power module; (4) The circuit testability design is lacking, and debugging and troubleshooting are inconvenient; (5) The universal expansion function is insufficient

Method used

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  • Communication control circuit for laser tracker
  • Communication control circuit for laser tracker
  • Communication control circuit for laser tracker

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0028] The communication control circuit of the present invention includes: a digital signal processor (DSP), an AD acquisition module, a network module, a signal driving module, a testability module and other peripheral auxiliary modules. The communication control circuit of the present invention includes the following design points:

[0029] (1) The communication control circuit reads the data in the register of the synchronous data acquisition and communication unit through XINTF, obtains the relevant information of the servo motor through the CANopen bus, and uploads it to the host computer through TCP / IP. At the same time, it receives instructions and parameter update information from the host computer and sends them...

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Abstract

The invention discloses a communication control circuit for a laser tracker, which comprises a digital signal processor, an acquisition module, a communication module, and a signal driving module. The control part of the digital signal processor of the communication control circuit only shoulders closed-loop control of the outermost layer position, and speed control and current closed-loop control are realized by the communication module in outer servo driving. In addition, the communication control circuit of the invention also adopts a modular design, and a testability design and an extensibility design are introduced. The circuit of the invention has complete integrated functions, the control part only shoulders closed-loop control of the outermost layer position, computational burden and real-time performance are reduced after decomposition, and hardware foundation is laid for adopting advanced control algorithm and improving the control frequency; monitoring on operation states of each module and the overall body is enhanced, and the debugging efficiency and the troubleshooting efficiency are improved; and the servo system which does not have a high real-time performance requirement can be directly used a current, speed and position three-closed loop integrated control and communication unit.

Description

technical field [0001] The present invention relates to the technical field of communication control, and more specifically relates to a communication control circuit of a laser tracker. Precision electromechanical communication control system. Background technique [0002] The laser tracker has the characteristics of large measurement range, high precision, good dynamic performance, and real-time on-site measurement. It has been widely used in high-end intelligent manufacturing industries such as aerospace, rail transit, and shipbuilding. It can not only carry out high-precision three-dimensional measurement of space static objects, but also carry out tracking and measurement of moving objects. [0003] The communication control circuit is one of the core units of the precision servo system of the laser tracker. Its main function is to complete the precision tracking position closed-loop control, power module switch and logic control, PWM pulse width modulation, CanOPEN co...

Claims

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Application Information

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IPC IPC(8): G05B19/04
CPCY02P80/30G05B19/04
Inventor 董登峰周维虎刘鑫林心龙纪荣祎劳达宝张滋黎
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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