Design of Fish Detector Based on Microprocessor

In order to expand the application and function of the fish detector,we propose a method of detector based on ARM9 processor and embedded Linux operating system.Besides,we design and accomplish the system including hardware circuit and application software.The fish detector is based on S3C2440 processor,using GPI0 interface to control transmitter to deliver electronic pulse.Sound waves are converted and launched to the water with sensor.Then receiver receives echoes,parsing through the decoder chip.In the end,we collect data through the touch screen control system,utilize sonar device to record sonar curve.The practical applications show good performance of the detector.