In order to improve the design of male/female cocoon detection system with fluorescent character

the design method is given.The visible light sensor LX1970 is adopted to acquire the fluorescent information of cocoons

and the comparator LM339 is used for designing signal voltage differential circuit.The stability and application convenience of this system is improved greatly.The design method of hardware and the structure of the signal acquisition system are given.The average fluorescent voltage of male and female cocoon are obtained

and the experiment results are analyzed properly.