With collision warning capability

lobula giant movement detector（ LGMD） is simplified to design circuit in parametric method

and network parameters can be configured online by RS—232. A collision warning sensor is designed based on LGMD module and from FPGA synthesis report

the pixel frequency is as much as178 MHz. A test system are also designed for verification. Under real-time mode

the sensor can generate warning alarm correctly according to inputs from camera; while under test mode

use video sequence to test sensor

output membrane potential consists with software simulation

which demonstrates the designed sensor carries on collision warning characteristics of the previous related work in software. The test system can also be used as hardware accelerator to boost LGMD algorithm.