Design an intelligent tracking car

which can run along track composed of thin iron wire. Metal detection sensor adopts four-channels digital inductance sensor LDC1614

each channel connects self-made inductance coil for effectively detect iron wire track

diameter of self-made inductance coil reach to 4 cm. The metal detection is based on eddy current principle

the LDC1614 can convert frequency which is changed after mutual inductance to digital output

and sent to MCU STM32 for processing and display by I2 C serial bus. In order to realize intelligence tracking

software programming adopts mean filtering algorithm to reduce interference

according to the processed data to control the car go forward

turn left

turn right. The experimental results indicate that because LDC1614 is four-channels digital inductance sensor

when tracking

the iron wire is put in the center of the self-made coil

each side of left and right has two sensors

it can realize stable and reliable tracking on iron wire.