The Design Of Electrical System For Intelligent Fiber Fusion Splicer

In the domain of optical fiber communication,with the “Fiber To The Home” pace of progress,fiber splicing machine has gradually become an indispensable site construction and maintenance tool.In the meanwhile,welding speed and loss,the efficiency of heating are the core of fiber welding machine and become the highest complexity part of the degree.Compared with the import fiber splicer,in the current domestic market,the domestic machine exist the problem for low speed and high loss to welde,low speed to heat.In this paper,“the design of electrical system for intelligent fiber fusion splicer” is taken as the research topic.The methods and design and implementation process of optimizing these three problems are expounded from three aspects: hardware circuit,algorithm design and software realization.In order to reduce the loss of welding and improve the speed of welding and heating,this paper focuses on: the stepper motor control based on curve acceleration and deceleration algorithm,the fiber image processing technology based on image digital morphological processing,the discharge based on constant voltage constant current feedback,the design of high-speed heating systems based on thick film resistors.The main research contents are divided into the following four parts.The first part,motor control.Compared with the traditional linear acceleration and deceleration algorithm,the system uses the curve acceleration and deceleration algorithm and implementation,so that the motor acceleration curve close to the motor torque characteristics of the curve,it can make the fiber control process more smoothly,the smooth control laid the foundation to the fiber in the discharge before the precise alignment and discharge.The second part,fiber image processing.Compared with the traditional fiber contour extraction scheme,this system adopts the optical fiber image processing algorithm based on digital morphology and realizes the processing speed of the image when the fiber is welded,and makes the extraction of the fiber position more accurate.The third part,the discharge welding treatment.Compared with the traditional fixed boost,variable frequency open loop control scheme,the system will control the frequency fixed,to take constant pressure constant current double feedback mechanism to improve the stability of the discharge process controllability,so that the loss of discharge welding will be lowerThe fourth part,heating control.Compared with the traditional heating wire and thermo-sensitive resistance feedback scheme,the system adopts the heating and feedback structure based on the thick film resistance,which greatly improves the responsiveness and accuracy of the heating feedback.At the same time,the incremental PID control algorithm is adopted to make the heating process more accurate.When increasing the heating power,we optimize the heating algorithm at the same time,designed under the high power of the triple protection mechanism to make the heating system faster and more secure.Finally,the four key technology designs and implementation have achieved the goals to improve the welding speed and quality,to reduce the heating time and improve safety.