Research On Small Programmable Acceleration Relay

With the progress of technology,the renewal cycle of the weapon is getting shorter and shorter,and the R & D cycle is shortened.A kind of custom-made form of device to a weapon has been unable to meet the needs of the previous.A programmable acceleration relay with delay control,acceleration control and parameters can be set up.The main function of programmable acceleration relay is to control the contact state according to the preset parameters according to the timing and acceleration,and complete the control function.First of all,the role of programmable acceleration relay in weapon system is analyzed,the demand of the system is identified,and the corresponding index is determined.According to the demand,a summary design is carried out,the overall technical scheme and time sequence are basically design,and the power line carrier is used to program,to simplify the product interface,and easy to use.Then,after the technical scheme is determined,the detailed design is carried out,including the circuit,structure and software design.The circuit is based on the microcontroller and through the microcontroller with other peripheral units to realize various functions.In the communication unit,the signal modulation and demodulation circuit are combined with the power supply to realize the power line carrier.The structure design is easy to be processed,and the structure scheme selected by preliminary analysis will not reduce the accuracy of programmable acceleration relay.In software,a modular design method is used to allocate the identified software requirements in detail,all the functions of the software are realized,and the software is tested.EMC Simulation Analysis and mechanical modal analysis are carried out according to the requirements of environmental indicators.The simulation software is used to analyze the transmission sensitivity of the programmable acceleration relay and the first order mode of the structure.The circuit design is perfected according to the simulation results of the CS106.The perfect circuit can meet the requirements of EMC.In addition,according to the failure mode of programmable acceleration relay and the influence on the task,the influence of the fault mode and the damage degree analysis and the work reliability prediction are carried out in the circuit and software.The reliability prediction results meet the requirements of the reliability index.Finally,the programmable acceleration relay is trial production,The machinability and technical indexes of the programmable acceleration relay are verified completely.After trial production,it is proved that he technical of the acceleration relay meets the requirements index,and meets the requirement of the weapon system.