Design and experiment of control system of automatic feeding machine for co-breeding of young silkworm

Co-breeding of young silkworms is a key link in modern sericulture production.In order to improve the working efficiency and reliability of the existing rearing machine of young silkworm,an automatic control system was designed in this paper.The main content includes the hardware circuit and program design of power module,data acquisition module and executive driver module.The power module provides power for each hardware device in the dual power automatic switching mode.The data acquisition module uses the STM32control chip with sensors to collect the data of the environment of silkworm rearing and the working data of the rearing equipment.The executive drive module realizes the control of the foil lifting,pushing,grasping,disinfection and feeding motors of the rearing machine.The test results showed that the system could complete the dual power supply switching within 20ms,and the continuous power supply capacity was more than 8h;The error of temperature value of data acquisition was±1.4℃,the error of humidity value was±2%,the error of voltage value was±0.5V,and the error of current value was±0.2A;the feeding accuracy of the executive drive module was more than 96%,and the feeding error was ±3%.The system can realize systematic control and remote monitoring of small silkworm rearing,and has high application value.